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200 | cpp | google/quiche | quic_libevent | quiche/quic/bindings/quic_libevent.cc | quiche/quic/bindings/quic_libevent_test.cc | #ifndef QUICHE_QUIC_BINDINGS_QUIC_LIBEVENT_H_
#define QUICHE_QUIC_BINDINGS_QUIC_LIBEVENT_H_
#include <memory>
#include <optional>
#include <utility>
#include "absl/container/flat_hash_set.h"
#include "absl/container/node_hash_map.h"
#include "event2/event.h"
#include "event2/event_struct.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_udp_socket.h"
namespace quic {
struct QUICHE_NO_EXPORT LibeventEventDeleter {
void operator()(event* ev) { event_free(ev); }
};
class QUICHE_EXPORT LibeventQuicEventLoop : public QuicEventLoop {
public:
explicit LibeventQuicEventLoop(event_base* base, QuicClock* clock);
~LibeventQuicEventLoop() override;
bool SupportsEdgeTriggered() const override { return edge_triggered_; }
std::unique_ptr<QuicAlarmFactory> CreateAlarmFactory() override {
return std::make_unique<AlarmFactory>(this);
}
bool RegisterSocket(QuicUdpSocketFd fd, QuicSocketEventMask events,
QuicSocketEventListener* listener) override;
bool UnregisterSocket(QuicUdpSocketFd fd) override;
bool RearmSocket(QuicUdpSocketFd fd, QuicSocketEventMask events) override;
bool ArtificiallyNotifyEvent(QuicUdpSocketFd fd,
QuicSocketEventMask events) override;
void RunEventLoopOnce(QuicTime::Delta default_timeout) override;
const QuicClock* GetClock() override { return clock_; }
void WakeUp();
event_base* base() { return base_; }
QuicClock* clock() const { return clock_; }
private:
void ActivateArtificialEvents();
class AlarmFactory : public QuicAlarmFactory {
public:
AlarmFactory(LibeventQuicEventLoop* loop) : loop_(loop) {}
QuicAlarm* CreateAlarm(QuicAlarm::Delegate* delegate) override;
QuicArenaScopedPtr<QuicAlarm> CreateAlarm(
QuicArenaScopedPtr<QuicAlarm::Delegate> delegate,
QuicConnectionArena* arena) override;
private:
LibeventQuicEventLoop* loop_;
};
class Registration {
public:
Registration(LibeventQuicEventLoop* loop, QuicUdpSocketFd fd,
QuicSocketEventMask events, QuicSocketEventListener* listener);
~Registration();
void Rearm(QuicSocketEventMask events);
void RecordArtificalEvents(QuicSocketEventMask events);
void MaybeNotifyArtificalEvents();
private:
LibeventQuicEventLoop* loop_;
QuicSocketEventListener* listener_;
event both_events_;
event read_event_;
event write_event_;
QuicSocketEventMask artificial_events_ = 0;
};
using RegistrationMap = absl::node_hash_map<QuicUdpSocketFd, Registration>;
event_base* base_;
const bool edge_triggered_;
QuicClock* clock_;
RegistrationMap registration_map_;
std::unique_ptr<event, LibeventEventDeleter> artifical_event_timer_;
absl::flat_hash_set<QuicUdpSocketFd> fds_with_artifical_events_;
};
class QUICHE_EXPORT LibeventLoop {
public:
LibeventLoop(struct event_base* base) : event_base_(base) {}
~LibeventLoop() { event_base_free(event_base_); }
struct event_base* event_base() { return event_base_; }
private:
struct event_base* event_base_;
};
class QUICHE_EXPORT LibeventQuicEventLoopWithOwnership
: public LibeventLoop,
public LibeventQuicEventLoop {
public:
static std::unique_ptr<LibeventQuicEventLoopWithOwnership> Create(
QuicClock* clock, bool force_level_triggered = false);
explicit LibeventQuicEventLoopWithOwnership(struct event_base* base,
QuicClock* clock)
: LibeventLoop(base), LibeventQuicEventLoop(base, clock) {}
};
class QUICHE_EXPORT QuicLibeventEventLoopFactory : public QuicEventLoopFactory {
public:
static QuicLibeventEventLoopFactory* Get() {
static QuicLibeventEventLoopFactory* factory =
new QuicLibeventEventLoopFactory(false);
return factory;
}
static QuicLibeventEventLoopFactory* GetLevelTriggeredBackendForTests() {
static QuicLibeventEventLoopFactory* factory =
new QuicLibeventEventLoopFactory(true);
return factory;
}
std::unique_ptr<QuicEventLoop> Create(QuicClock* clock) override {
return LibeventQuicEventLoopWithOwnership::Create(clock,
force_level_triggered_);
}
std::string GetName() const override { return name_; }
private:
explicit QuicLibeventEventLoopFactory(bool force_level_triggered);
bool force_level_triggered_;
std::string name_;
};
}
#endif
#include "quiche/quic/bindings/quic_libevent.h"
#include <memory>
#include <utility>
#include "absl/time/time.h"
#include "event2/event.h"
#include "event2/event_struct.h"
#include "event2/thread.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/core/quic_time.h"
namespace quic {
using LibeventEventMask = short;
QuicSocketEventMask LibeventEventMaskToQuicEvents(int events) {
return ((events & EV_READ) ? kSocketEventReadable : 0) |
((events & EV_WRITE) ? kSocketEventWritable : 0);
}
LibeventEventMask QuicEventsToLibeventEventMask(QuicSocketEventMask events) {
return ((events & kSocketEventReadable) ? EV_READ : 0) |
((events & kSocketEventWritable) ? EV_WRITE : 0);
}
class LibeventAlarm : public QuicAlarm {
public:
LibeventAlarm(LibeventQuicEventLoop* loop,
QuicArenaScopedPtr<QuicAlarm::Delegate> delegate)
: QuicAlarm(std::move(delegate)), clock_(loop->clock()) {
event_.reset(evtimer_new(
loop->base(),
[](evutil_socket_t, LibeventEventMask, void* arg) {
LibeventAlarm* self = reinterpret_cast<LibeventAlarm*>(arg);
self->Fire();
},
this));
}
protected:
void SetImpl() override {
absl::Duration timeout =
absl::Microseconds((deadline() - clock_->Now()).ToMicroseconds());
timeval unix_time = absl::ToTimeval(timeout);
event_add(event_.get(), &unix_time);
}
void CancelImpl() override { event_del(event_.get()); }
private:
std::unique_ptr<event, LibeventEventDeleter> event_;
QuicClock* clock_;
};
LibeventQuicEventLoop::LibeventQuicEventLoop(event_base* base, QuicClock* clock)
: base_(base),
edge_triggered_(event_base_get_features(base) & EV_FEATURE_ET),
clock_(clock),
artifical_event_timer_(evtimer_new(
base_,
[](evutil_socket_t, LibeventEventMask, void* arg) {
auto* self = reinterpret_cast<LibeventQuicEventLoop*>(arg);
self->ActivateArtificialEvents();
},
this)) {
QUICHE_CHECK_LE(sizeof(event), event_get_struct_event_size())
<< "libevent ABI mismatch: sizeof(event) is bigger than the one QUICHE "
"has been compiled with";
}
LibeventQuicEventLoop::~LibeventQuicEventLoop() {
event_del(artifical_event_timer_.get());
}
bool LibeventQuicEventLoop::RegisterSocket(QuicUdpSocketFd fd,
QuicSocketEventMask events,
QuicSocketEventListener* listener) {
auto [it, success] =
registration_map_.try_emplace(fd, this, fd, events, listener);
return success;
}
bool LibeventQuicEventLoop::UnregisterSocket(QuicUdpSocketFd fd) {
fds_with_artifical_events_.erase(fd);
return registration_map_.erase(fd);
}
bool LibeventQuicEventLoop::RearmSocket(QuicUdpSocketFd fd,
QuicSocketEventMask events) {
if (edge_triggered_) {
QUICHE_BUG(LibeventQuicEventLoop_RearmSocket_called_on_ET)
<< "RearmSocket() called on an edge-triggered event loop";
return false;
}
auto it = registration_map_.find(fd);
if (it == registration_map_.end()) {
return false;
}
it->second.Rearm(events);
return true;
}
bool LibeventQuicEventLoop::ArtificiallyNotifyEvent(
QuicUdpSocketFd fd, QuicSocketEventMask events) {
auto it = registration_map_.find(fd);
if (it == registration_map_.end()) {
return false;
}
it->second.RecordArtificalEvents(events);
fds_with_artifical_events_.insert(fd);
if (!evtimer_pending(artifical_event_timer_.get(), nullptr)) {
struct timeval tv = {0, 0};
evtimer_add(artifical_event_timer_.get(), &tv);
}
return true;
}
void LibeventQuicEventLoop::ActivateArtificialEvents() {
absl::flat_hash_set<QuicUdpSocketFd> fds_with_artifical_events;
{
using std::swap;
swap(fds_with_artifical_events_, fds_with_artifical_events);
}
for (QuicUdpSocketFd fd : fds_with_artifical_events) {
auto it = registration_map_.find(fd);
if (it == registration_map_.end()) {
continue;
}
it->second.MaybeNotifyArtificalEvents();
}
}
void LibeventQuicEventLoop::RunEventLoopOnce(QuicTime::Delta default_timeout) {
timeval timeout =
absl::ToTimeval(absl::Microseconds(default_timeout.ToMicroseconds()));
event_base_loopexit(base_, &timeout);
event_base_loop(base_, EVLOOP_ONCE);
}
void LibeventQuicEventLoop::WakeUp() {
timeval timeout = absl::ToTimeval(absl::ZeroDuration());
event_base_loopexit(base_, &timeout);
}
LibeventQuicEventLoop::Registration::Registration(
LibeventQuicEventLoop* loop, QuicUdpSocketFd fd, QuicSocketEventMask events,
QuicSocketEventListener* listener)
: loop_(loop), listener_(listener) {
event_callback_fn callback = [](evutil_socket_t fd, LibeventEventMask events,
void* arg) {
auto* self = reinterpret_cast<LibeventQuicEventLoop::Registration*>(arg);
self->listener_->OnSocketEvent(self->loop_, fd,
LibeventEventMaskToQuicEvents(events));
};
if (loop_->SupportsEdgeTriggered()) {
LibeventEventMask mask =
QuicEventsToLibeventEventMask(events) | EV_PERSIST | EV_ET;
event_assign(&both_events_, loop_->base(), fd, mask, callback, this);
event_add(&both_events_, nullptr);
} else {
event_assign(&read_event_, loop_->base(), fd, EV_READ, callback, this);
event_assign(&write_event_, loop_->base(), fd, EV_WRITE, callback, this);
Rearm(events);
}
}
LibeventQuicEventLoop::Registration::~Registration() {
if (loop_->SupportsEdgeTriggered()) {
event_del(&both_events_);
} else {
event_del(&read_event_);
event_del(&write_event_);
}
}
void LibeventQuicEventLoop::Registration::RecordArtificalEvents(
QuicSocketEventMask events) {
artificial_events_ |= events;
}
void LibeventQuicEventLoop::Registration::MaybeNotifyArtificalEvents() {
if (artificial_events_ == 0) {
return;
}
QuicSocketEventMask events = artificial_events_;
artificial_events_ = 0;
if (loop_->SupportsEdgeTriggered()) {
event_active(&both_events_, QuicEventsToLibeventEventMask(events), 0);
return;
}
if (events & kSocketEventReadable) {
event_active(&read_event_, EV_READ, 0);
}
if (events & kSocketEventWritable) {
event_active(&write_event_, EV_WRITE, 0);
}
}
void LibeventQuicEventLoop::Registration::Rearm(QuicSocketEventMask events) {
QUICHE_DCHECK(!loop_->SupportsEdgeTriggered());
if (events & kSocketEventReadable) {
event_add(&read_event_, nullptr);
}
if (events & kSocketEventWritable) {
event_add(&write_event_, nullptr);
}
}
QuicAlarm* LibeventQuicEventLoop::AlarmFactory::CreateAlarm(
QuicAlarm::Delegate* delegate) {
return new LibeventAlarm(loop_,
QuicArenaScopedPtr<QuicAlarm::Delegate>(delegate));
}
QuicArenaScopedPtr<QuicAlarm> LibeventQuicEventLoop::AlarmFactory::CreateAlarm(
QuicArenaScopedPtr<QuicAlarm::Delegate> delegate,
QuicConnectionArena* arena) {
if (arena != nullptr) {
return arena->New<LibeventAlarm>(loop_, std::move(delegate));
}
return QuicArenaScopedPtr<QuicAlarm>(
new LibeventAlarm(loop_, std::move(delegate)));
}
QuicLibeventEventLoopFactory::QuicLibeventEventLoopFactory(
bool force_level_triggered)
: force_level_triggered_(force_level_triggered) {
std::unique_ptr<QuicEventLoop> event_loop = Create(QuicDefaultClock::Get());
name_ = absl::StrFormat(
"libevent(%s)",
event_base_get_method(
static_cast<LibeventQuicEventLoopWithOwnership*>(event_loop.get())
->base()));
}
struct LibeventConfigDeleter {
void operator()(event_config* config) { event_config_free(config); }
};
std::unique_ptr<LibeventQuicEventLoopWithOwnership>
LibeventQuicEventLoopWithOwnership::Create(QuicClock* clock,
bool force_level_triggered) {
static int threads_initialized = []() {
#ifdef _WIN32
return evthread_use_windows_threads();
#else
return evthread_use_pthreads();
#endif
}();
QUICHE_DCHECK_EQ(threads_initialized, 0);
std::unique_ptr<event_config, LibeventConfigDeleter> config(
event_config_new());
if (force_level_triggered) {
event_config_avoid_method(config.get(), "epoll");
event_config_avoid_method(config.get(), "kqueue");
}
return std::make_unique<LibeventQuicEventLoopWithOwnership>(
event_base_new_with_config(config.get()), clock);
}
} | #include "quiche/quic/bindings/quic_libevent.h"
#include <atomic>
#include <memory>
#include "absl/memory/memory.h"
#include "absl/time/clock.h"
#include "absl/time/time.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_thread.h"
namespace quic::test {
namespace {
class FailureAlarmDelegate : public QuicAlarm::Delegate {
public:
QuicConnectionContext* GetConnectionContext() override { return nullptr; }
void OnAlarm() override { ADD_FAILURE() << "Test timed out"; }
};
class LoopBreakThread : public QuicThread {
public:
LoopBreakThread(LibeventQuicEventLoop* loop)
: QuicThread("LoopBreakThread"), loop_(loop) {}
void Run() override {
absl::SleepFor(absl::Milliseconds(250));
loop_broken_.store(true);
loop_->WakeUp();
}
std::atomic<int>& loop_broken() { return loop_broken_; }
private:
LibeventQuicEventLoop* loop_;
std::atomic<int> loop_broken_ = 0;
};
TEST(QuicLibeventTest, WakeUpFromAnotherThread) {
QuicClock* clock = QuicDefaultClock::Get();
auto event_loop_owned = QuicLibeventEventLoopFactory::Get()->Create(clock);
LibeventQuicEventLoop* event_loop =
static_cast<LibeventQuicEventLoop*>(event_loop_owned.get());
std::unique_ptr<QuicAlarmFactory> alarm_factory =
event_loop->CreateAlarmFactory();
std::unique_ptr<QuicAlarm> timeout_alarm =
absl::WrapUnique(alarm_factory->CreateAlarm(new FailureAlarmDelegate()));
const QuicTime kTimeoutAt = clock->Now() + QuicTime::Delta::FromSeconds(10);
timeout_alarm->Set(kTimeoutAt);
LoopBreakThread thread(event_loop);
thread.Start();
event_loop->RunEventLoopOnce(QuicTime::Delta::FromSeconds(5 * 60));
EXPECT_TRUE(thread.loop_broken().load());
thread.Join();
}
}
} |
201 | cpp | google/quiche | quic_socket_address | quiche/quic/platform/api/quic_socket_address.cc | quiche/quic/platform/api/quic_socket_address_test.cc | #ifndef QUICHE_QUIC_PLATFORM_API_QUIC_SOCKET_ADDRESS_H_
#define QUICHE_QUIC_PLATFORM_API_QUIC_SOCKET_ADDRESS_H_
#include <string>
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
namespace quic {
class QUIC_EXPORT_PRIVATE QuicSocketAddress {
public:
QuicSocketAddress() {}
QuicSocketAddress(QuicIpAddress address, uint16_t port);
explicit QuicSocketAddress(const struct sockaddr_storage& saddr);
explicit QuicSocketAddress(const sockaddr* saddr, socklen_t len);
QuicSocketAddress(const QuicSocketAddress& other) = default;
QuicSocketAddress& operator=(const QuicSocketAddress& other) = default;
QuicSocketAddress& operator=(QuicSocketAddress&& other) = default;
QUIC_EXPORT_PRIVATE friend bool operator==(const QuicSocketAddress& lhs,
const QuicSocketAddress& rhs);
QUIC_EXPORT_PRIVATE friend bool operator!=(const QuicSocketAddress& lhs,
const QuicSocketAddress& rhs);
bool IsInitialized() const;
std::string ToString() const;
int FromSocket(int fd);
QuicSocketAddress Normalized() const;
QuicIpAddress host() const;
uint16_t port() const;
sockaddr_storage generic_address() const;
uint32_t Hash() const;
private:
QuicIpAddress host_;
uint16_t port_ = 0;
};
inline std::ostream& operator<<(std::ostream& os,
const QuicSocketAddress address) {
os << address.ToString();
return os;
}
class QUIC_EXPORT_PRIVATE QuicSocketAddressHash {
public:
size_t operator()(QuicSocketAddress const& address) const noexcept {
return address.Hash();
}
};
}
#endif
#include "quiche/quic/platform/api/quic_socket_address.h"
#include <cstring>
#include <limits>
#include <string>
#include "absl/strings/str_cat.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
namespace quic {
namespace {
uint32_t HashIP(const QuicIpAddress& ip) {
if (ip.IsIPv4()) {
return ip.GetIPv4().s_addr;
}
if (ip.IsIPv6()) {
auto v6addr = ip.GetIPv6();
const uint32_t* v6_as_ints =
reinterpret_cast<const uint32_t*>(&v6addr.s6_addr);
return v6_as_ints[0] ^ v6_as_ints[1] ^ v6_as_ints[2] ^ v6_as_ints[3];
}
return 0;
}
}
QuicSocketAddress::QuicSocketAddress(QuicIpAddress address, uint16_t port)
: host_(address), port_(port) {}
QuicSocketAddress::QuicSocketAddress(const struct sockaddr_storage& saddr) {
switch (saddr.ss_family) {
case AF_INET: {
const sockaddr_in* v4 = reinterpret_cast<const sockaddr_in*>(&saddr);
host_ = QuicIpAddress(v4->sin_addr);
port_ = ntohs(v4->sin_port);
break;
}
case AF_INET6: {
const sockaddr_in6* v6 = reinterpret_cast<const sockaddr_in6*>(&saddr);
host_ = QuicIpAddress(v6->sin6_addr);
port_ = ntohs(v6->sin6_port);
break;
}
default:
QUIC_BUG(quic_bug_10075_1)
<< "Unknown address family passed: " << saddr.ss_family;
break;
}
}
QuicSocketAddress::QuicSocketAddress(const sockaddr* saddr, socklen_t len) {
sockaddr_storage storage;
static_assert(std::numeric_limits<socklen_t>::max() >= sizeof(storage),
"Cannot cast sizeof(storage) to socklen_t as it does not fit");
if (len < static_cast<socklen_t>(sizeof(sockaddr)) ||
(saddr->sa_family == AF_INET &&
len < static_cast<socklen_t>(sizeof(sockaddr_in))) ||
(saddr->sa_family == AF_INET6 &&
len < static_cast<socklen_t>(sizeof(sockaddr_in6))) ||
len > static_cast<socklen_t>(sizeof(storage))) {
QUIC_BUG(quic_bug_10075_2) << "Socket address of invalid length provided";
return;
}
memcpy(&storage, saddr, len);
*this = QuicSocketAddress(storage);
}
bool operator==(const QuicSocketAddress& lhs, const QuicSocketAddress& rhs) {
return lhs.host_ == rhs.host_ && lhs.port_ == rhs.port_;
}
bool operator!=(const QuicSocketAddress& lhs, const QuicSocketAddress& rhs) {
return !(lhs == rhs);
}
bool QuicSocketAddress::IsInitialized() const { return host_.IsInitialized(); }
std::string QuicSocketAddress::ToString() const {
switch (host_.address_family()) {
case IpAddressFamily::IP_V4:
return absl::StrCat(host_.ToString(), ":", port_);
case IpAddressFamily::IP_V6:
return absl::StrCat("[", host_.ToString(), "]:", port_);
default:
return "";
}
}
int QuicSocketAddress::FromSocket(int fd) {
sockaddr_storage addr;
socklen_t addr_len = sizeof(addr);
int result = getsockname(fd, reinterpret_cast<sockaddr*>(&addr), &addr_len);
bool success = result == 0 && addr_len > 0 &&
static_cast<size_t>(addr_len) <= sizeof(addr);
if (success) {
*this = QuicSocketAddress(addr);
return 0;
}
return -1;
}
QuicSocketAddress QuicSocketAddress::Normalized() const {
return QuicSocketAddress(host_.Normalized(), port_);
}
QuicIpAddress QuicSocketAddress::host() const { return host_; }
uint16_t QuicSocketAddress::port() const { return port_; }
sockaddr_storage QuicSocketAddress::generic_address() const {
union {
sockaddr_storage storage;
sockaddr_in v4;
sockaddr_in6 v6;
} result;
memset(&result.storage, 0, sizeof(result.storage));
switch (host_.address_family()) {
case IpAddressFamily::IP_V4:
result.v4.sin_family = AF_INET;
result.v4.sin_addr = host_.GetIPv4();
result.v4.sin_port = htons(port_);
break;
case IpAddressFamily::IP_V6:
result.v6.sin6_family = AF_INET6;
result.v6.sin6_addr = host_.GetIPv6();
result.v6.sin6_port = htons(port_);
break;
default:
result.storage.ss_family = AF_UNSPEC;
break;
}
return result.storage;
}
uint32_t QuicSocketAddress::Hash() const {
uint32_t value = 0;
value ^= HashIP(host_);
value ^= port_ | (port_ << 16);
return value;
}
} | #include "quiche/quic/platform/api/quic_socket_address.h"
#include <memory>
#include <sstream>
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace {
TEST(QuicSocketAddress, Uninitialized) {
QuicSocketAddress uninitialized;
EXPECT_FALSE(uninitialized.IsInitialized());
}
TEST(QuicSocketAddress, ExplicitConstruction) {
QuicSocketAddress ipv4_address(QuicIpAddress::Loopback4(), 443);
QuicSocketAddress ipv6_address(QuicIpAddress::Loopback6(), 443);
EXPECT_TRUE(ipv4_address.IsInitialized());
EXPECT_EQ("127.0.0.1:443", ipv4_address.ToString());
EXPECT_EQ("[::1]:443", ipv6_address.ToString());
EXPECT_EQ(QuicIpAddress::Loopback4(), ipv4_address.host());
EXPECT_EQ(QuicIpAddress::Loopback6(), ipv6_address.host());
EXPECT_EQ(443, ipv4_address.port());
}
TEST(QuicSocketAddress, OutputToStream) {
QuicSocketAddress ipv4_address(QuicIpAddress::Loopback4(), 443);
std::stringstream stream;
stream << ipv4_address;
EXPECT_EQ("127.0.0.1:443", stream.str());
}
TEST(QuicSocketAddress, FromSockaddrIPv4) {
union {
sockaddr_storage storage;
sockaddr addr;
sockaddr_in v4;
} address;
memset(&address, 0, sizeof(address));
address.v4.sin_family = AF_INET;
address.v4.sin_addr = QuicIpAddress::Loopback4().GetIPv4();
address.v4.sin_port = htons(443);
EXPECT_EQ("127.0.0.1:443",
QuicSocketAddress(&address.addr, sizeof(address.v4)).ToString());
EXPECT_EQ("127.0.0.1:443", QuicSocketAddress(address.storage).ToString());
}
TEST(QuicSocketAddress, FromSockaddrIPv6) {
union {
sockaddr_storage storage;
sockaddr addr;
sockaddr_in6 v6;
} address;
memset(&address, 0, sizeof(address));
address.v6.sin6_family = AF_INET6;
address.v6.sin6_addr = QuicIpAddress::Loopback6().GetIPv6();
address.v6.sin6_port = htons(443);
EXPECT_EQ("[::1]:443",
QuicSocketAddress(&address.addr, sizeof(address.v6)).ToString());
EXPECT_EQ("[::1]:443", QuicSocketAddress(address.storage).ToString());
}
TEST(QuicSocketAddres, ToSockaddrIPv4) {
union {
sockaddr_storage storage;
sockaddr_in v4;
} address;
address.storage =
QuicSocketAddress(QuicIpAddress::Loopback4(), 443).generic_address();
ASSERT_EQ(AF_INET, address.v4.sin_family);
EXPECT_EQ(QuicIpAddress::Loopback4(), QuicIpAddress(address.v4.sin_addr));
EXPECT_EQ(htons(443), address.v4.sin_port);
}
TEST(QuicSocketAddress, Normalize) {
QuicIpAddress dual_stacked;
ASSERT_TRUE(dual_stacked.FromString("::ffff:127.0.0.1"));
ASSERT_TRUE(dual_stacked.IsIPv6());
QuicSocketAddress not_normalized(dual_stacked, 443);
QuicSocketAddress normalized = not_normalized.Normalized();
EXPECT_EQ("[::ffff:127.0.0.1]:443", not_normalized.ToString());
EXPECT_EQ("127.0.0.1:443", normalized.ToString());
}
#if defined(__linux__) && !defined(ANDROID)
#include <errno.h>
#include <sys/socket.h>
#include <sys/types.h>
TEST(QuicSocketAddress, FromSocket) {
int fd;
QuicSocketAddress address;
bool bound = false;
for (int port = 50000; port < 50400; port++) {
fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
ASSERT_GT(fd, 0);
address = QuicSocketAddress(QuicIpAddress::Loopback6(), port);
sockaddr_storage raw_address = address.generic_address();
int bind_result = bind(fd, reinterpret_cast<const sockaddr*>(&raw_address),
sizeof(sockaddr_in6));
if (bind_result < 0 && errno == EADDRINUSE) {
close(fd);
continue;
}
ASSERT_EQ(0, bind_result);
bound = true;
break;
}
ASSERT_TRUE(bound);
QuicSocketAddress real_address;
ASSERT_EQ(0, real_address.FromSocket(fd));
ASSERT_TRUE(real_address.IsInitialized());
EXPECT_EQ(real_address, address);
close(fd);
}
#endif
}
} |
202 | cpp | google/quiche | connect_udp_tunnel | quiche/quic/tools/connect_udp_tunnel.cc | quiche/quic/tools/connect_udp_tunnel_test.cc | #ifndef QUICHE_QUIC_TOOLS_CONNECT_UDP_TUNNEL_H_
#define QUICHE_QUIC_TOOLS_CONNECT_UDP_TUNNEL_H_
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include "absl/container/flat_hash_set.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connecting_client_socket.h"
#include "quiche/quic/core/http/quic_spdy_stream.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
class ConnectUdpTunnel : public ConnectingClientSocket::AsyncVisitor,
public QuicSpdyStream::Http3DatagramVisitor {
public:
ConnectUdpTunnel(
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler,
SocketFactory* socket_factory, std::string server_label,
absl::flat_hash_set<QuicServerId> acceptable_targets);
~ConnectUdpTunnel();
ConnectUdpTunnel(const ConnectUdpTunnel&) = delete;
ConnectUdpTunnel& operator=(const ConnectUdpTunnel&) = delete;
void OpenTunnel(const spdy::Http2HeaderBlock& request_headers);
bool IsTunnelOpenToTarget() const;
void OnClientStreamClose();
void ConnectComplete(absl::Status status) override;
void ReceiveComplete(absl::StatusOr<quiche::QuicheMemSlice> data) override;
void SendComplete(absl::Status status) override;
void OnHttp3Datagram(QuicStreamId stream_id,
absl::string_view payload) override;
void OnUnknownCapsule(QuicStreamId ,
const quiche::UnknownCapsule& ) override {}
private:
void BeginAsyncReadFromTarget();
void OnDataReceivedFromTarget(bool success);
void SendUdpPacketToTarget(absl::string_view packet);
void SendConnectResponse();
void SendErrorResponse(absl::string_view status,
absl::string_view proxy_status_error,
absl::string_view error_details);
void TerminateClientStream(absl::string_view error_description,
QuicResetStreamError error_code);
const absl::flat_hash_set<QuicServerId> acceptable_targets_;
SocketFactory* const socket_factory_;
const std::string server_label_;
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler_;
std::unique_ptr<ConnectingClientSocket> target_socket_;
bool receive_started_ = false;
bool datagram_visitor_registered_ = false;
};
}
#endif
#include "quiche/quic/tools/connect_udp_tunnel.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/container/flat_hash_set.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/numbers.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_split.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_name_lookup.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/masque/connect_udp_datagram_payload.h"
#include "quiche/common/platform/api/quiche_googleurl.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/platform/api/quiche_url_utils.h"
#include "quiche/common/structured_headers.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
namespace structured_headers = quiche::structured_headers;
namespace {
constexpr size_t kReadSize = 4 * 1024;
std::optional<QuicServerId> ValidateAndParseTargetFromPath(
absl::string_view path) {
std::string canonicalized_path_str;
url::StdStringCanonOutput canon_output(&canonicalized_path_str);
url::Component path_component;
url::CanonicalizePath(path.data(), url::Component(0, path.size()),
&canon_output, &path_component);
if (!path_component.is_nonempty()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request with non-canonicalizable path: "
<< path;
return std::nullopt;
}
canon_output.Complete();
absl::string_view canonicalized_path =
absl::string_view(canonicalized_path_str)
.substr(path_component.begin, path_component.len);
std::vector<absl::string_view> path_split =
absl::StrSplit(canonicalized_path, '/');
if (path_split.size() != 7 || !path_split[0].empty() ||
path_split[1] != ".well-known" || path_split[2] != "masque" ||
path_split[3] != "udp" || path_split[4].empty() ||
path_split[5].empty() || !path_split[6].empty()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request with bad path: "
<< canonicalized_path;
return std::nullopt;
}
std::optional<std::string> decoded_host =
quiche::AsciiUrlDecode(path_split[4]);
if (!decoded_host.has_value()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request with undecodable host: "
<< path_split[4];
return std::nullopt;
}
QUICHE_DCHECK(!decoded_host->empty());
std::optional<std::string> decoded_port =
quiche::AsciiUrlDecode(path_split[5]);
if (!decoded_port.has_value()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request with undecodable port: "
<< path_split[5];
return std::nullopt;
}
QUICHE_DCHECK(!decoded_port->empty());
int parsed_port_number = url::ParsePort(
decoded_port->data(), url::Component(0, decoded_port->size()));
if (parsed_port_number <= 0) {
QUICHE_DVLOG(1) << "CONNECT-UDP request with bad port: " << *decoded_port;
return std::nullopt;
}
QUICHE_DCHECK_LE(parsed_port_number, std::numeric_limits<uint16_t>::max());
return QuicServerId(*decoded_host, static_cast<uint16_t>(parsed_port_number));
}
std::optional<QuicServerId> ValidateHeadersAndGetTarget(
const spdy::Http2HeaderBlock& request_headers) {
QUICHE_DCHECK(request_headers.contains(":method"));
QUICHE_DCHECK(request_headers.find(":method")->second == "CONNECT");
QUICHE_DCHECK(request_headers.contains(":protocol"));
QUICHE_DCHECK(request_headers.find(":protocol")->second == "connect-udp");
auto authority_it = request_headers.find(":authority");
if (authority_it == request_headers.end() || authority_it->second.empty()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request missing authority";
return std::nullopt;
}
auto scheme_it = request_headers.find(":scheme");
if (scheme_it == request_headers.end() || scheme_it->second.empty()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request missing scheme";
return std::nullopt;
} else if (scheme_it->second != "https") {
QUICHE_DVLOG(1) << "CONNECT-UDP request contains unexpected scheme: "
<< scheme_it->second;
return std::nullopt;
}
auto path_it = request_headers.find(":path");
if (path_it == request_headers.end() || path_it->second.empty()) {
QUICHE_DVLOG(1) << "CONNECT-UDP request missing path";
return std::nullopt;
}
std::optional<QuicServerId> target_server_id =
ValidateAndParseTargetFromPath(path_it->second);
return target_server_id;
}
bool ValidateTarget(
const QuicServerId& target,
const absl::flat_hash_set<QuicServerId>& acceptable_targets) {
if (acceptable_targets.contains(target)) {
return true;
}
QUICHE_DVLOG(1)
<< "CONNECT-UDP request target is not an acceptable allow-listed target: "
<< target.ToHostPortString();
return false;
}
}
ConnectUdpTunnel::ConnectUdpTunnel(
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler,
SocketFactory* socket_factory, std::string server_label,
absl::flat_hash_set<QuicServerId> acceptable_targets)
: acceptable_targets_(std::move(acceptable_targets)),
socket_factory_(socket_factory),
server_label_(std::move(server_label)),
client_stream_request_handler_(client_stream_request_handler) {
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DCHECK(socket_factory_);
QUICHE_DCHECK(!server_label_.empty());
}
ConnectUdpTunnel::~ConnectUdpTunnel() {
QUICHE_DCHECK(!IsTunnelOpenToTarget());
QUICHE_DCHECK(!receive_started_);
QUICHE_DCHECK(!datagram_visitor_registered_);
}
void ConnectUdpTunnel::OpenTunnel(
const spdy::Http2HeaderBlock& request_headers) {
QUICHE_DCHECK(!IsTunnelOpenToTarget());
std::optional<QuicServerId> target =
ValidateHeadersAndGetTarget(request_headers);
if (!target.has_value()) {
TerminateClientStream(
"invalid request headers",
QuicResetStreamError::FromIetf(QuicHttp3ErrorCode::MESSAGE_ERROR));
return;
}
if (!ValidateTarget(*target, acceptable_targets_)) {
SendErrorResponse("403", "destination_ip_prohibited",
"disallowed proxy target");
return;
}
QuicSocketAddress address = tools::LookupAddress(AF_UNSPEC, *target);
if (!address.IsInitialized()) {
SendErrorResponse("500", "dns_error", "host resolution error");
return;
}
target_socket_ = socket_factory_->CreateConnectingUdpClientSocket(
address,
0,
0,
this);
QUICHE_DCHECK(target_socket_);
absl::Status connect_result = target_socket_->ConnectBlocking();
if (!connect_result.ok()) {
SendErrorResponse(
"502", "destination_ip_unroutable",
absl::StrCat("UDP socket error: ", connect_result.ToString()));
return;
}
QUICHE_DVLOG(1) << "CONNECT-UDP tunnel opened from stream "
<< client_stream_request_handler_->stream_id() << " to "
<< target->ToHostPortString();
client_stream_request_handler_->GetStream()->RegisterHttp3DatagramVisitor(
this);
datagram_visitor_registered_ = true;
SendConnectResponse();
BeginAsyncReadFromTarget();
}
bool ConnectUdpTunnel::IsTunnelOpenToTarget() const { return !!target_socket_; }
void ConnectUdpTunnel::OnClientStreamClose() {
QUICHE_CHECK(client_stream_request_handler_);
QUICHE_DVLOG(1) << "CONNECT-UDP stream "
<< client_stream_request_handler_->stream_id() << " closed";
if (datagram_visitor_registered_) {
client_stream_request_handler_->GetStream()
->UnregisterHttp3DatagramVisitor();
datagram_visitor_registered_ = false;
}
client_stream_request_handler_ = nullptr;
if (IsTunnelOpenToTarget()) {
target_socket_->Disconnect();
}
target_socket_.reset();
}
void ConnectUdpTunnel::ConnectComplete(absl::Status ) {
QUICHE_NOTREACHED();
}
void ConnectUdpTunnel::ReceiveComplete(
absl::StatusOr<quiche::QuicheMemSlice> data) {
QUICHE_DCHECK(IsTunnelOpenToTarget());
QUICHE_DCHECK(receive_started_);
receive_started_ = false;
if (!data.ok()) {
if (client_stream_request_handler_) {
QUICHE_LOG(WARNING) << "Error receiving CONNECT-UDP data from target: "
<< data.status();
} else {
QUICHE_DVLOG(1) << "Error receiving CONNECT-UDP data from target after "
"stream already closed.";
}
return;
}
QUICHE_DCHECK(client_stream_request_handler_);
quiche::ConnectUdpDatagramUdpPacketPayload payload(data->AsStringView());
client_stream_request_handler_->GetStream()->SendHttp3Datagram(
payload.Serialize());
BeginAsyncReadFromTarget();
}
void ConnectUdpTunnel::SendComplete(absl::Status ) {
QUICHE_NOTREACHED();
}
void ConnectUdpTunnel::OnHttp3Datagram(QuicStreamId stream_id,
absl::string_view payload) {
QUICHE_DCHECK(IsTunnelOpenToTarget());
QUICHE_DCHECK_EQ(stream_id, client_stream_request_handler_->stream_id());
QUICHE_DCHECK(!payload.empty());
std::unique_ptr<quiche::ConnectUdpDatagramPayload> parsed_payload =
quiche::ConnectUdpDatagramPayload::Parse(payload);
if (!parsed_payload) {
QUICHE_DVLOG(1) << "Ignoring HTTP Datagram payload, due to inability to "
"parse as CONNECT-UDP payload.";
return;
}
switch (parsed_payload->GetType()) {
case quiche::ConnectUdpDatagramPayload::Type::kUdpPacket:
SendUdpPacketToTarget(parsed_payload->GetUdpProxyingPayload());
break;
case quiche::ConnectUdpDatagramPayload::Type::kUnknown:
QUICHE_DVLOG(1)
<< "Ignoring HTTP Datagram payload with unrecognized context ID.";
}
}
void ConnectUdpTunnel::BeginAsyncReadFromTarget() {
QUICHE_DCHECK(IsTunnelOpenToTarget());
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DCHECK(!receive_started_);
receive_started_ = true;
target_socket_->ReceiveAsync(kReadSize);
}
void ConnectUdpTunnel::SendUdpPacketToTarget(absl::string_view packet) {
absl::Status send_result = target_socket_->SendBlocking(std::string(packet));
if (!send_result.ok()) {
QUICHE_LOG(WARNING) << "Error sending CONNECT-UDP datagram to target: "
<< send_result;
}
}
void ConnectUdpTunnel::SendConnectResponse() {
QUICHE_DCHECK(IsTunnelOpenToTarget());
QUICHE_DCHECK(client_stream_request_handler_);
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
std::optional<std::string> capsule_protocol_value =
structured_headers::SerializeItem(structured_headers::Item(true));
QUICHE_CHECK(capsule_protocol_value.has_value());
response_headers["Capsule-Protocol"] = *capsule_protocol_value;
QuicBackendResponse response;
response.set_headers(std::move(response_headers));
response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
client_stream_request_handler_->OnResponseBackendComplete(&response);
}
void ConnectUdpTunnel::SendErrorResponse(absl::string_view status,
absl::string_view proxy_status_error,
absl::string_view error_details) {
QUICHE_DCHECK(!status.empty());
QUICHE_DCHECK(!proxy_status_error.empty());
QUICHE_DCHECK(!error_details.empty());
QUICHE_DCHECK(client_stream_request_handler_);
#ifndef NDEBUG
int status_num = 0;
bool is_num = absl::SimpleAtoi(status, &status_num);
QUICHE_DCHECK(is_num);
QUICHE_DCHECK_GE(status_num, 100);
QUICHE_DCHECK_LT(status_num, 600);
QUICHE_DCHECK(status_num < 200 || status_num >= 300);
#endif
spdy::Http2HeaderBlock headers;
headers[":status"] = status;
structured_headers::Item proxy_status_item(server_label_);
structured_headers::Item proxy_status_error_item(
std::string{proxy_status_error});
structured_headers::Item proxy_status_details_item(
std::string{error_details});
structured_headers::ParameterizedMember proxy_status_member(
std::move(proxy_status_item),
{{"error", std::move(proxy_status_error_item)},
{"details", std::move(proxy_status_details_item)}});
std::optional<std::string> proxy_status_value =
structured_headers::SerializeList({proxy_status_member});
QUICHE_CHECK(proxy_status_value.has_value());
headers["Proxy-Status"] = *proxy_status_value;
QuicBackendResponse response;
response.set_headers(std::move(headers));
client_stream_request_handler_->OnResponseBackendComplete(&response);
}
void ConnectUdpTunnel::TerminateClientStream(
absl::string_view error_description, QuicResetStreamError error_code) {
QUICHE_DCHECK(client_stream_request_handler_);
std::string error_description_str =
error_description.empty() ? ""
: absl::StrCat(" due to ", error_description);
QUICHE_DVLOG(1) << "Terminating CONNECT stream "
<< client_stream_request_handler_->stream_id()
<< " with error code " << error_code.ietf_application_code()
<< error_description_str;
client_stream_request_handler_->TerminateStreamWithError(error_code);
}
} | #include "quiche/quic/tools/connect_udp_tunnel.h"
#include <memory>
#include <string>
#include <utility>
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connecting_client_socket.h"
#include "quiche/quic/core/http/quic_spdy_stream.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/masque/connect_udp_datagram_payload.h"
#include "quiche/common/platform/api/quiche_googleurl.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/platform/api/quiche_test.h"
#include "quiche/common/platform/api/quiche_url_utils.h"
namespace quic::test {
namespace {
using ::testing::_;
using ::testing::AnyOf;
using ::testing::Eq;
using ::testing::Ge;
using ::testing::Gt;
using ::testing::HasSubstr;
using ::testing::InvokeWithoutArgs;
using ::testing::IsEmpty;
using ::testing::Matcher;
using ::testing::NiceMock;
using ::testing::Pair;
using ::testing::Property;
using ::testing::Return;
using ::testing::StrictMock;
using ::testing::UnorderedElementsAre;
constexpr QuicStreamId kStreamId = 100;
class MockStream : public QuicSpdyStream {
public:
explicit MockStream(QuicSpdySession* spdy_session)
: QuicSpdyStream(kStreamId, spdy_session, BIDIRECTIONAL) {}
void OnBodyAvailable() override {}
MOCK_METHOD(MessageStatus, SendHttp3Datagram, (absl::string_view data),
(override));
};
class MockRequestHandler : public QuicSimpleServerBackend::RequestHandler {
public:
QuicConnectionId connection_id() const override {
return TestConnectionId(41212);
}
QuicStreamId stream_id() const override { return kStreamId; }
std::string peer_host() const override { return "127.0.0.1"; }
MOCK_METHOD(QuicSpdyStream*, GetStream, (), (override));
MOCK_METHOD(void, OnResponseBackendComplete,
(const QuicBackendResponse* response), (override));
MOCK_METHOD(void, SendStreamData, (absl::string_view data, bool close_stream),
(override));
MOCK_METHOD(void, TerminateStreamWithError, (QuicResetStreamError error),
(override));
};
class MockSocketFactory : public SocketFactory {
public:
MOCK_METHOD(std::unique_ptr<ConnectingClientSocket>, CreateTcpClientSocket,
(const QuicSocketAddress& peer_address,
QuicByteCount receive_buffer_size,
QuicByteCount send_buffer_size,
ConnectingClientSocket::AsyncVisitor* async_visitor),
(override));
MOCK_METHOD(std::unique_ptr<ConnectingClientSocket>,
CreateConnectingUdpClientSocket,
(const QuicSocketAddress& peer_address,
QuicByteCount receive_buffer_size,
QuicByteCount send_buffer_size,
ConnectingClientSocket::AsyncVisitor* async_visitor),
(override));
};
class MockSocket : public ConnectingClientSocket {
public:
MOCK_METHOD(absl::Status, ConnectBlocking, (), (override));
MOCK_METHOD(void, ConnectAsync, (), (override));
MOCK_METHOD(void, Disconnect, (), (override));
MOCK_METHOD(absl::StatusOr<QuicSocketAddress>, GetLocalAddress, (),
(override));
MOCK_METHOD(absl::StatusOr<quiche::QuicheMemSlice>, ReceiveBlocking,
(QuicByteCount max_size), (override));
MOCK_METHOD(void, ReceiveAsync, (QuicByteCount max_size), (override));
MOCK_METHOD(absl::Status, SendBlocking, (std::string data), (override));
MOCK_METHOD(absl::Status, SendBlocking, (quiche::QuicheMemSlice data),
(override));
MOCK_METHOD(void, SendAsync, (std::string data), (override));
MOCK_METHOD(void, SendAsync, (quiche::QuicheMemSlice data), (override));
};
class ConnectUdpTunnelTest : public quiche::test::QuicheTest {
public:
void SetUp() override {
#if defined(_WIN32)
WSADATA wsa_data;
const WORD version_required = MAKEWORD(2, 2);
ASSERT_EQ(WSAStartup(version_required, &wsa_data), 0);
#endif
auto socket = std::make_unique<StrictMock<MockSocket>>();
socket_ = socket.get();
ON_CALL(socket_factory_,
CreateConnectingUdpClientSocket(
AnyOf(QuicSocketAddress(TestLoopback4(), kAcceptablePort),
QuicSocketAddress(TestLoopback6(), kAcceptablePort)),
_, _, &tunnel_))
.WillByDefault(Return(ByMove(std::move(socket))));
EXPECT_CALL(request_handler_, GetStream()).WillRepeatedly(Return(&stream_));
}
protected:
static constexpr absl::string_view kAcceptableTarget = "localhost";
static constexpr uint16_t kAcceptablePort = 977;
NiceMock<MockQuicConnectionHelper> connection_helper_;
NiceMock<MockAlarmFactory> alarm_factory_;
NiceMock<MockQuicSpdySession> session_{new NiceMock<MockQuicConnection>(
&connection_helper_, &alarm_factory_, Perspective::IS_SERVER)};
StrictMock<MockStream> stream_{&session_};
StrictMock<MockRequestHandler> request_handler_;
NiceMock<MockSocketFactory> socket_factory_;
StrictMock<MockSocket>* socket_;
ConnectUdpTunnel tunnel_{
&request_handler_,
&socket_factory_,
"server_label",
{{std::string(kAcceptableTarget), kAcceptablePort},
{TestLoopback4().ToString(), kAcceptablePort},
{absl::StrCat("[", TestLoopback6().ToString(), "]"), kAcceptablePort}}};
};
TEST_F(ConnectUdpTunnelTest, OpenTunnel) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(
request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
UnorderedElementsAre(Pair(":status", "200"),
Pair("Capsule-Protocol", "?1"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] = absl::StrCat(
"/.well-known/masque/udp/", kAcceptableTarget, "/", kAcceptablePort, "/");
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsTunnelOpenToTarget());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsTunnelOpenToTarget());
}
TEST_F(ConnectUdpTunnelTest, OpenTunnelToIpv4LiteralTarget) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(
request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
UnorderedElementsAre(Pair(":status", "200"),
Pair("Capsule-Protocol", "?1"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] =
absl::StrCat("/.well-known/masque/udp/", TestLoopback4().ToString(), "/",
kAcceptablePort, "/");
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsTunnelOpenToTarget());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsTunnelOpenToTarget());
}
TEST_F(ConnectUdpTunnelTest, OpenTunnelToIpv6LiteralTarget) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(
request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
UnorderedElementsAre(Pair(":status", "200"),
Pair("Capsule-Protocol", "?1"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
std::string path;
ASSERT_TRUE(quiche::ExpandURITemplate(
"/.well-known/masque/udp/{target_host}/{target_port}/",
{{"target_host", absl::StrCat("[", TestLoopback6().ToString(), "]")},
{"target_port", absl::StrCat(kAcceptablePort)}},
&path));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] = path;
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsTunnelOpenToTarget());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsTunnelOpenToTarget());
}
TEST_F(ConnectUdpTunnelTest, OpenTunnelWithMalformedRequest) {
EXPECT_CALL(request_handler_,
TerminateStreamWithError(Property(
&QuicResetStreamError::ietf_application_code,
static_cast<uint64_t>(QuicHttp3ErrorCode::MESSAGE_ERROR))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
tunnel_.OpenTunnel(request_headers);
EXPECT_FALSE(tunnel_.IsTunnelOpenToTarget());
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectUdpTunnelTest, OpenTunnelWithUnacceptableTarget) {
EXPECT_CALL(request_handler_,
OnResponseBackendComplete(AllOf(
Property(&QuicBackendResponse::response_type,
QuicBackendResponse::REGULAR_RESPONSE),
Property(&QuicBackendResponse::headers,
UnorderedElementsAre(
Pair(":status", "403"),
Pair("Proxy-Status",
HasSubstr("destination_ip_prohibited")))),
Property(&QuicBackendResponse::trailers, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] = "/.well-known/masque/udp/unacceptable.test/100/";
tunnel_.OpenTunnel(request_headers);
EXPECT_FALSE(tunnel_.IsTunnelOpenToTarget());
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectUdpTunnelTest, ReceiveFromTarget) {
static constexpr absl::string_view kData = "\x11\x22\x33\x44\x55";
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Ge(kData.size()))).Times(2);
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
EXPECT_CALL(
stream_,
SendHttp3Datagram(
quiche::ConnectUdpDatagramUdpPacketPayload(kData).Serialize()))
.WillOnce(Return(MESSAGE_STATUS_SUCCESS));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] = absl::StrCat(
"/.well-known/masque/udp/", kAcceptableTarget, "/", kAcceptablePort, "/");
tunnel_.OpenTunnel(request_headers);
tunnel_.ReceiveComplete(MemSliceFromString(kData));
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectUdpTunnelTest, SendToTarget) {
static constexpr absl::string_view kData = "\x11\x22\x33\x44\x55";
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, SendBlocking(Matcher<std::string>(Eq(kData))))
.WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":protocol"] = "connect-udp";
request_headers[":authority"] = "proxy.test";
request_headers[":scheme"] = "https";
request_headers[":path"] = absl::StrCat(
"/.well-known/masque/udp/", kAcceptableTarget, "/", kAcceptablePort, "/");
tunnel_.OpenTunnel(request_headers);
tunnel_.OnHttp3Datagram(
kStreamId, quiche::ConnectUdpDatagramUdpPacketPayload(kData).Serialize());
tunnel_.OnClientStreamClose();
}
}
} |
203 | cpp | google/quiche | quic_simple_server_stream | quiche/quic/tools/quic_simple_server_stream.cc | quiche/quic/tools/quic_simple_server_stream_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_SIMPLE_SERVER_STREAM_H_
#define QUICHE_QUIC_TOOLS_QUIC_SIMPLE_SERVER_STREAM_H_
#include <cstdint>
#include <optional>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/quic_spdy_server_stream_base.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/spdy/core/http2_header_block.h"
#include "quiche/spdy/core/spdy_framer.h"
namespace quic {
class QuicSimpleServerStream : public QuicSpdyServerStreamBase,
public QuicSimpleServerBackend::RequestHandler {
public:
QuicSimpleServerStream(QuicStreamId id, QuicSpdySession* session,
StreamType type,
QuicSimpleServerBackend* quic_simple_server_backend);
QuicSimpleServerStream(PendingStream* pending, QuicSpdySession* session,
QuicSimpleServerBackend* quic_simple_server_backend);
QuicSimpleServerStream(const QuicSimpleServerStream&) = delete;
QuicSimpleServerStream& operator=(const QuicSimpleServerStream&) = delete;
~QuicSimpleServerStream() override;
void OnInitialHeadersComplete(bool fin, size_t frame_len,
const QuicHeaderList& header_list) override;
void OnCanWrite() override;
void OnBodyAvailable() override;
void OnInvalidHeaders() override;
static const char* const kErrorResponseBody;
static const char* const kNotFoundResponseBody;
QuicConnectionId connection_id() const override;
QuicStreamId stream_id() const override;
std::string peer_host() const override;
QuicSpdyStream* GetStream() override;
void OnResponseBackendComplete(const QuicBackendResponse* response) override;
void SendStreamData(absl::string_view data, bool close_stream) override;
void TerminateStreamWithError(QuicResetStreamError error) override;
void Respond(const QuicBackendResponse* response);
protected:
void HandleRequestConnectData(bool fin_received);
virtual void SendResponse();
virtual void SendErrorResponse();
virtual void SendErrorResponse(int resp_code);
void SendNotFoundResponse();
void SendIncompleteResponse(
std::optional<spdy::Http2HeaderBlock> response_headers,
absl::string_view body);
void SendHeadersAndBody(spdy::Http2HeaderBlock response_headers,
absl::string_view body);
void SendHeadersAndBodyAndTrailers(
std::optional<spdy::Http2HeaderBlock> response_headers,
absl::string_view body, spdy::Http2HeaderBlock response_trailers);
spdy::Http2HeaderBlock* request_headers() { return &request_headers_; }
bool IsConnectRequest() const;
const std::string& body() { return body_; }
void WriteGeneratedBytes();
void set_quic_simple_server_backend_for_test(
QuicSimpleServerBackend* backend) {
quic_simple_server_backend_ = backend;
}
bool response_sent() const { return response_sent_; }
void set_response_sent() { response_sent_ = true; }
spdy::Http2HeaderBlock request_headers_;
int64_t content_length_;
std::string body_;
private:
uint64_t generate_bytes_length_;
bool response_sent_ = false;
std::unique_ptr<QuicAlarm> delayed_response_alarm_;
QuicSimpleServerBackend* quic_simple_server_backend_;
};
}
#endif
#include "quiche/quic/tools/quic_simple_server_stream.h"
#include <algorithm>
#include <cstdint>
#include <list>
#include <optional>
#include <string>
#include <utility>
#include "absl/strings/numbers.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/quic_spdy_stream.h"
#include "quiche/quic/core/http/spdy_utils.h"
#include "quiche/quic/core/http/web_transport_http3.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/tools/quic_simple_server_session.h"
#include "quiche/spdy/core/spdy_protocol.h"
using spdy::Http2HeaderBlock;
namespace quic {
QuicSimpleServerStream::QuicSimpleServerStream(
QuicStreamId id, QuicSpdySession* session, StreamType type,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicSpdyServerStreamBase(id, session, type),
content_length_(-1),
generate_bytes_length_(0),
quic_simple_server_backend_(quic_simple_server_backend) {
QUICHE_DCHECK(quic_simple_server_backend_);
}
QuicSimpleServerStream::QuicSimpleServerStream(
PendingStream* pending, QuicSpdySession* session,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicSpdyServerStreamBase(pending, session),
content_length_(-1),
generate_bytes_length_(0),
quic_simple_server_backend_(quic_simple_server_backend) {
QUICHE_DCHECK(quic_simple_server_backend_);
}
QuicSimpleServerStream::~QuicSimpleServerStream() {
quic_simple_server_backend_->CloseBackendResponseStream(this);
}
void QuicSimpleServerStream::OnInitialHeadersComplete(
bool fin, size_t frame_len, const QuicHeaderList& header_list) {
QuicSpdyStream::OnInitialHeadersComplete(fin, frame_len, header_list);
if (!response_sent_ &&
!SpdyUtils::CopyAndValidateHeaders(header_list, &content_length_,
&request_headers_)) {
QUIC_DVLOG(1) << "Invalid headers";
SendErrorResponse();
}
ConsumeHeaderList();
if (!fin && !response_sent_ && IsConnectRequest()) {
if (quic_simple_server_backend_ == nullptr) {
QUIC_DVLOG(1) << "Backend is missing on CONNECT headers.";
SendErrorResponse();
return;
}
if (web_transport() != nullptr) {
QuicSimpleServerBackend::WebTransportResponse response =
quic_simple_server_backend_->ProcessWebTransportRequest(
request_headers_, web_transport());
if (response.response_headers[":status"] == "200") {
WriteHeaders(std::move(response.response_headers), false, nullptr);
if (response.visitor != nullptr) {
web_transport()->SetVisitor(std::move(response.visitor));
}
web_transport()->HeadersReceived(request_headers_);
} else {
WriteHeaders(std::move(response.response_headers), true, nullptr);
}
return;
}
quic_simple_server_backend_->HandleConnectHeaders(request_headers_,
this);
}
}
void QuicSimpleServerStream::OnBodyAvailable() {
while (HasBytesToRead()) {
struct iovec iov;
if (GetReadableRegions(&iov, 1) == 0) {
break;
}
QUIC_DVLOG(1) << "Stream " << id() << " processed " << iov.iov_len
<< " bytes.";
body_.append(static_cast<char*>(iov.iov_base), iov.iov_len);
if (content_length_ >= 0 &&
body_.size() > static_cast<uint64_t>(content_length_)) {
QUIC_DVLOG(1) << "Body size (" << body_.size() << ") > content length ("
<< content_length_ << ").";
SendErrorResponse();
return;
}
MarkConsumed(iov.iov_len);
}
if (!sequencer()->IsClosed()) {
if (IsConnectRequest()) {
HandleRequestConnectData(false);
}
sequencer()->SetUnblocked();
return;
}
OnFinRead();
if (write_side_closed() || fin_buffered()) {
return;
}
if (IsConnectRequest()) {
HandleRequestConnectData(true);
} else {
SendResponse();
}
}
void QuicSimpleServerStream::HandleRequestConnectData(bool fin_received) {
QUICHE_DCHECK(IsConnectRequest());
if (quic_simple_server_backend_ == nullptr) {
QUIC_DVLOG(1) << "Backend is missing on CONNECT data.";
ResetWriteSide(
QuicResetStreamError::FromInternal(QUIC_STREAM_CONNECT_ERROR));
return;
}
std::string data = std::move(body_);
body_.clear();
quic_simple_server_backend_->HandleConnectData(data,
fin_received,
this);
}
void QuicSimpleServerStream::SendResponse() {
QUICHE_DCHECK(!IsConnectRequest());
if (request_headers_.empty()) {
QUIC_DVLOG(1) << "Request headers empty.";
SendErrorResponse();
return;
}
if (content_length_ > 0 &&
static_cast<uint64_t>(content_length_) != body_.size()) {
QUIC_DVLOG(1) << "Content length (" << content_length_ << ") != body size ("
<< body_.size() << ").";
SendErrorResponse();
return;
}
if (!request_headers_.contains(":authority")) {
QUIC_DVLOG(1) << "Request headers do not contain :authority.";
SendErrorResponse();
return;
}
if (!request_headers_.contains(":path")) {
QUIC_DVLOG(1) << "Request headers do not contain :path.";
SendErrorResponse();
return;
}
if (quic_simple_server_backend_ == nullptr) {
QUIC_DVLOG(1) << "Backend is missing in SendResponse().";
SendErrorResponse();
return;
}
if (web_transport() != nullptr) {
QuicSimpleServerBackend::WebTransportResponse response =
quic_simple_server_backend_->ProcessWebTransportRequest(
request_headers_, web_transport());
if (response.response_headers[":status"] == "200") {
WriteHeaders(std::move(response.response_headers), false, nullptr);
if (response.visitor != nullptr) {
web_transport()->SetVisitor(std::move(response.visitor));
}
web_transport()->HeadersReceived(request_headers_);
} else {
WriteHeaders(std::move(response.response_headers), true, nullptr);
}
return;
}
quic_simple_server_backend_->FetchResponseFromBackend(request_headers_, body_,
this);
}
QuicConnectionId QuicSimpleServerStream::connection_id() const {
return spdy_session()->connection_id();
}
QuicStreamId QuicSimpleServerStream::stream_id() const { return id(); }
std::string QuicSimpleServerStream::peer_host() const {
return spdy_session()->peer_address().host().ToString();
}
QuicSpdyStream* QuicSimpleServerStream::GetStream() { return this; }
namespace {
class DelayedResponseAlarm : public QuicAlarm::DelegateWithContext {
public:
DelayedResponseAlarm(QuicSimpleServerStream* stream,
const QuicBackendResponse* response)
: QuicAlarm::DelegateWithContext(
stream->spdy_session()->connection()->context()),
stream_(stream),
response_(response) {
stream_ = stream;
response_ = response;
}
~DelayedResponseAlarm() override = default;
void OnAlarm() override { stream_->Respond(response_); }
private:
QuicSimpleServerStream* stream_;
const QuicBackendResponse* response_;
};
}
void QuicSimpleServerStream::OnResponseBackendComplete(
const QuicBackendResponse* response) {
if (response == nullptr) {
QUIC_DVLOG(1) << "Response not found in cache.";
SendNotFoundResponse();
return;
}
auto delay = response->delay();
if (delay.IsZero()) {
Respond(response);
return;
}
auto* connection = session()->connection();
delayed_response_alarm_.reset(connection->alarm_factory()->CreateAlarm(
new DelayedResponseAlarm(this, response)));
delayed_response_alarm_->Set(connection->clock()->Now() + delay);
}
void QuicSimpleServerStream::Respond(const QuicBackendResponse* response) {
for (const auto& headers : response->early_hints()) {
QUIC_DVLOG(1) << "Stream " << id() << " sending an Early Hints response: "
<< headers.DebugString();
WriteHeaders(headers.Clone(), false, nullptr);
}
if (response->response_type() == QuicBackendResponse::CLOSE_CONNECTION) {
QUIC_DVLOG(1) << "Special response: closing connection.";
OnUnrecoverableError(QUIC_NO_ERROR, "Toy server forcing close");
return;
}
if (response->response_type() == QuicBackendResponse::IGNORE_REQUEST) {
QUIC_DVLOG(1) << "Special response: ignoring request.";
return;
}
if (response->response_type() == QuicBackendResponse::BACKEND_ERR_RESPONSE) {
QUIC_DVLOG(1) << "Quic Proxy: Backend connection error.";
SendErrorResponse(502);
return;
}
std::string request_url = request_headers_[":authority"].as_string() +
request_headers_[":path"].as_string();
int response_code;
const Http2HeaderBlock& response_headers = response->headers();
if (!ParseHeaderStatusCode(response_headers, &response_code)) {
auto status = response_headers.find(":status");
if (status == response_headers.end()) {
QUIC_LOG(WARNING)
<< ":status not present in response from cache for request "
<< request_url;
} else {
QUIC_LOG(WARNING) << "Illegal (non-integer) response :status from cache: "
<< status->second << " for request " << request_url;
}
SendErrorResponse();
return;
}
if (response->response_type() == QuicBackendResponse::INCOMPLETE_RESPONSE) {
QUIC_DVLOG(1)
<< "Stream " << id()
<< " sending an incomplete response, i.e. no trailer, no fin.";
SendIncompleteResponse(response->headers().Clone(), response->body());
return;
}
if (response->response_type() == QuicBackendResponse::GENERATE_BYTES) {
QUIC_DVLOG(1) << "Stream " << id() << " sending a generate bytes response.";
std::string path = request_headers_[":path"].as_string().substr(1);
if (!absl::SimpleAtoi(path, &generate_bytes_length_)) {
QUIC_LOG(ERROR) << "Path is not a number.";
SendNotFoundResponse();
return;
}
Http2HeaderBlock headers = response->headers().Clone();
headers["content-length"] = absl::StrCat(generate_bytes_length_);
WriteHeaders(std::move(headers), false, nullptr);
QUICHE_DCHECK(!response_sent_);
response_sent_ = true;
WriteGeneratedBytes();
return;
}
QUIC_DVLOG(1) << "Stream " << id() << " sending response.";
SendHeadersAndBodyAndTrailers(response->headers().Clone(), response->body(),
response->trailers().Clone());
}
void QuicSimpleServerStream::SendStreamData(absl::string_view data,
bool close_stream) {
QUICHE_DCHECK(!data.empty() || close_stream);
if (close_stream) {
SendHeadersAndBodyAndTrailers(
std::nullopt, data,
spdy::Http2HeaderBlock());
} else {
SendIncompleteResponse(std::nullopt, data);
}
}
void QuicSimpleServerStream::TerminateStreamWithError(
QuicResetStreamError error) {
QUIC_DVLOG(1) << "Stream " << id() << " abruptly terminating with error "
<< error.internal_code();
ResetWriteSide(error);
}
void QuicSimpleServerStream::OnCanWrite() {
QuicSpdyStream::OnCanWrite();
WriteGeneratedBytes();
}
void QuicSimpleServerStream::WriteGeneratedBytes() {
static size_t kChunkSize = 1024;
while (!HasBufferedData() && generate_bytes_length_ > 0) {
size_t len = std::min<size_t>(kChunkSize, generate_bytes_length_);
std::string data(len, 'a');
generate_bytes_length_ -= len;
bool fin = generate_bytes_length_ == 0;
WriteOrBufferBody(data, fin);
}
}
void QuicSimpleServerStream::SendNotFoundResponse() {
QUIC_DVLOG(1) << "Stream " << id() << " sending not found response.";
Http2HeaderBlock headers;
headers[":status"] = "404";
headers["content-length"] = absl::StrCat(strlen(kNotFoundResponseBody));
SendHeadersAndBody(std::move(headers), kNotFoundResponseBody);
}
void QuicSimpleServerStream::SendErrorResponse() { SendErrorResponse(0); }
void QuicSimpleServerStream::SendErrorResponse(int resp_code) {
QUIC_DVLOG(1) << "Stream " << id() << " sending error response.";
if (!reading_stopped()) {
StopReading();
}
Http2HeaderBlock headers;
if (resp_code <= 0) {
headers[":status"] = "500";
} else {
headers[":status"] = absl::StrCat(resp_code);
}
headers["content-length"] = absl::StrCat(strlen(kErrorResponseBody));
SendHeadersAndBody(std::move(headers), kErrorResponseBody);
}
void QuicSimpleServerStream::SendIncompleteResponse(
std::optional<Http2HeaderBlock> response_headers, absl::string_view body) {
QUICHE_DCHECK_NE(response_headers.has_value(), response_sent_);
if (response_headers.has_value()) {
QUIC_DLOG(INFO) << "Stream " << id() << " writing headers (fin = false) : "
<< response_headers.value().DebugString();
int response_code;
if (!ParseHeaderStatusCode(*response_headers, &response_code) ||
response_code != 100) {
response_sent_ = true;
}
WriteHeaders(std::move(response_headers).value(), false, nullptr);
}
QUIC_DLOG(INFO) << "Stream " << id()
<< " writing body (fin = false) with size: " << body.size();
if (!body.empty()) {
WriteOrBufferBody(body, false);
}
}
void QuicSimpleServerStream::SendHeadersAndBody(
Http2HeaderBlock response_headers, absl::string_view body) {
SendHeadersAndBodyAndTrailers(std::move(response_headers), body,
Http2HeaderBlock());
}
void QuicSimpleServerStream::SendHeadersAndBodyAndTrailers(
std::optional<Http2HeaderBlock> response_headers, absl::string_view body,
Http2HeaderBlock response_trailers) {
QUICHE_DCHECK_NE(response_headers.has_value(), response_sent_);
if (response_headers.has_value()) {
bool send_fin = (body.empty() && response_trailers.empty());
QUIC_DLOG(INFO) << "Stream " << id()
<< " writing headers (fin = " << send_fin
<< ") : " << response_headers.value().DebugString();
WriteHeaders(std::move(response_headers).value(), send_fin, nullptr);
response_sent_ = true;
if (send_fin) {
return;
}
}
bool send_fin = response_trailers.empty();
QUIC_DLOG(INFO) << "Stream " << id() << " writing body (fin = " << send_fin
<< ") with size: " << body.size();
if (!body.empty() || send_fin) {
WriteOrBufferBody(body, send_fin);
}
if (send_fin) {
return;
}
QUIC_DLOG(INFO) << "Stream " << id() << " writing trailers (fin = true): "
<< response_trailers.DebugString();
WriteTrailers(std::move(response_trailers), nullptr);
}
bool QuicSimpleServerStream::IsConnectRequest() const {
auto method_it = request_headers_.find(":method");
return method_it != request_headers_.end() && method_it->second == "CONNECT";
}
void QuicSimpleServerStream::OnInvalidHeaders() {
QUIC_DVLOG(1) << "Invalid headers";
SendErrorResponse(400);
}
const char* const QuicSimpleServerStream::kErrorResponseBody = "bad";
const char* const QuicSimpleServerStream::kNotFoundResponseBody =
"file not found";
} | #include "quiche/quic/tools/quic_simple_server_stream.h"
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/memory/memory.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/http/http_encoder.h"
#include "quiche/quic/core/http/spdy_utils.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_spdy_session_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simulator/simulator.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_memory_cache_backend.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/quic/tools/quic_simple_server_session.h"
#include "quiche/common/simple_buffer_allocator.h"
using testing::_;
using testing::AnyNumber;
using testing::InSequence;
using testing::Invoke;
using testing::StrictMock;
namespace quic {
namespace test {
const size_t kFakeFrameLen = 60;
const size_t kErrorLength = strlen(QuicSimpleServerStream::kErrorResponseBody);
const size_t kDataFrameHeaderLength = 2;
class TestStream : public QuicSimpleServerStream {
public:
TestStream(QuicStreamId stream_id, QuicSpdySession* session, StreamType type,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicSimpleServerStream(stream_id, session, type,
quic_simple_server_backend) {
EXPECT_CALL(*this, WriteOrBufferBody(_, _))
.Times(AnyNumber())
.WillRepeatedly([this](absl::string_view data, bool fin) {
this->QuicSimpleServerStream::WriteOrBufferBody(data, fin);
});
}
~TestStream() override = default;
MOCK_METHOD(void, FireAlarmMock, (), ());
MOCK_METHOD(void, WriteHeadersMock, (bool fin), ());
MOCK_METHOD(void, WriteEarlyHintsHeadersMock, (bool fin), ());
MOCK_METHOD(void, WriteOrBufferBody, (absl::string_view data, bool fin),
(override));
size_t WriteHeaders(
spdy::Http2HeaderBlock header_block, bool fin,
quiche::QuicheReferenceCountedPointer<QuicAckListenerInterface>
) override {
if (header_block[":status"] == "103") {
WriteEarlyHintsHeadersMock(fin);
} else {
WriteHeadersMock(fin);
}
return 0;
}
void DoSendResponse() { SendResponse(); }
void DoSendErrorResponse() { QuicSimpleServerStream::SendErrorResponse(); }
spdy::Http2HeaderBlock* mutable_headers() { return &request_headers_; }
void set_body(std::string body) { body_ = std::move(body); }
const std::string& body() const { return body_; }
int content_length() const { return content_length_; }
bool send_response_was_called() const { return send_response_was_called_; }
bool send_error_response_was_called() const {
return send_error_response_was_called_;
}
absl::string_view GetHeader(absl::string_view key) const {
auto it = request_headers_.find(key);
QUICHE_DCHECK(it != request_headers_.end());
return it->second;
}
void ReplaceBackend(QuicSimpleServerBackend* backend) {
set_quic_simple_server_backend_for_test(backend);
}
protected:
void SendResponse() override {
send_response_was_called_ = true;
QuicSimpleServerStream::SendResponse();
}
void SendErrorResponse(int resp_code) override {
send_error_response_was_called_ = true;
QuicSimpleServerStream::SendErrorResponse(resp_code);
}
private:
bool send_response_was_called_ = false;
bool send_error_response_was_called_ = false;
};
namespace {
class MockQuicSimpleServerSession : public QuicSimpleServerSession {
public:
const size_t kMaxStreamsForTest = 100;
MockQuicSimpleServerSession(
QuicConnection* connection, MockQuicSessionVisitor* owner,
MockQuicCryptoServerStreamHelper* helper,
QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicSimpleServerSession(DefaultQuicConfig(), CurrentSupportedVersions(),
connection, owner, helper, crypto_config,
compressed_certs_cache,
quic_simple_server_backend) {
if (VersionHasIetfQuicFrames(connection->transport_version())) {
QuicSessionPeer::SetMaxOpenIncomingUnidirectionalStreams(
this, kMaxStreamsForTest);
QuicSessionPeer::SetMaxOpenIncomingBidirectionalStreams(
this, kMaxStreamsForTest);
} else {
QuicSessionPeer::SetMaxOpenIncomingStreams(this, kMaxStreamsForTest);
QuicSessionPeer::SetMaxOpenOutgoingStreams(this, kMaxStreamsForTest);
}
ON_CALL(*this, WritevData(_, _, _, _, _, _))
.WillByDefault(Invoke(this, &MockQuicSimpleServerSession::ConsumeData));
}
MockQuicSimpleServerSession(const MockQuicSimpleServerSession&) = delete;
MockQuicSimpleServerSession& operator=(const MockQuicSimpleServerSession&) =
delete;
~MockQuicSimpleServerSession() override = default;
MOCK_METHOD(void, OnConnectionClosed,
(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source),
(override));
MOCK_METHOD(QuicSpdyStream*, CreateIncomingStream, (QuicStreamId id),
(override));
MOCK_METHOD(QuicConsumedData, WritevData,
(QuicStreamId id, size_t write_length, QuicStreamOffset offset,
StreamSendingState state, TransmissionType type,
EncryptionLevel level),
(override));
MOCK_METHOD(void, OnStreamHeaderList,
(QuicStreamId stream_id, bool fin, size_t frame_len,
const QuicHeaderList& header_list),
(override));
MOCK_METHOD(void, OnStreamHeadersPriority,
(QuicStreamId stream_id,
const spdy::SpdyStreamPrecedence& precedence),
(override));
MOCK_METHOD(void, MaybeSendRstStreamFrame,
(QuicStreamId stream_id, QuicResetStreamError error,
QuicStreamOffset bytes_written),
(override));
MOCK_METHOD(void, MaybeSendStopSendingFrame,
(QuicStreamId stream_id, QuicResetStreamError error), (override));
using QuicSession::ActivateStream;
QuicConsumedData ConsumeData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset,
StreamSendingState state,
TransmissionType ,
std::optional<EncryptionLevel> ) {
if (write_length > 0) {
auto buf = std::make_unique<char[]>(write_length);
QuicStream* stream = GetOrCreateStream(id);
QUICHE_DCHECK(stream);
QuicDataWriter writer(write_length, buf.get(), quiche::HOST_BYTE_ORDER);
stream->WriteStreamData(offset, write_length, &writer);
} else {
QUICHE_DCHECK(state != NO_FIN);
}
return QuicConsumedData(write_length, state != NO_FIN);
}
spdy::Http2HeaderBlock original_request_headers_;
};
class QuicSimpleServerStreamTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
QuicSimpleServerStreamTest()
: connection_(new StrictMock<MockQuicConnection>(
&simulator_, simulator_.GetAlarmFactory(), Perspective::IS_SERVER,
SupportedVersions(GetParam()))),
crypto_config_(new QuicCryptoServerConfig(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default())),
compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
session_(connection_, &session_owner_, &session_helper_,
crypto_config_.get(), &compressed_certs_cache_,
&memory_cache_backend_),
quic_response_(new QuicBackendResponse),
body_("hello world") {
connection_->set_visitor(&session_);
header_list_.OnHeaderBlockStart();
header_list_.OnHeader(":authority", "www.google.com");
header_list_.OnHeader(":path", "/");
header_list_.OnHeader(":method", "POST");
header_list_.OnHeader(":scheme", "https");
header_list_.OnHeader("content-length", "11");
header_list_.OnHeaderBlockEnd(128, 128);
session_.config()->SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindowForTest);
session_.config()->SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindowForTest);
session_.Initialize();
connection_->SetEncrypter(
quic::ENCRYPTION_FORWARD_SECURE,
std::make_unique<quic::NullEncrypter>(connection_->perspective()));
if (connection_->version().SupportsAntiAmplificationLimit()) {
QuicConnectionPeer::SetAddressValidated(connection_);
}
stream_ = new StrictMock<TestStream>(
GetNthClientInitiatedBidirectionalStreamId(
connection_->transport_version(), 0),
&session_, BIDIRECTIONAL, &memory_cache_backend_);
session_.ActivateStream(absl::WrapUnique(stream_));
QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesUnidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesOutgoingBidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(session_.config(), 10);
session_.OnConfigNegotiated();
simulator_.RunFor(QuicTime::Delta::FromSeconds(1));
}
const std::string& StreamBody() { return stream_->body(); }
std::string StreamHeadersValue(const std::string& key) {
return (*stream_->mutable_headers())[key].as_string();
}
bool UsesHttp3() const {
return VersionUsesHttp3(connection_->transport_version());
}
void ReplaceBackend(std::unique_ptr<QuicSimpleServerBackend> backend) {
replacement_backend_ = std::move(backend);
stream_->ReplaceBackend(replacement_backend_.get());
}
quic::simulator::Simulator simulator_;
spdy::Http2HeaderBlock response_headers_;
MockQuicConnectionHelper helper_;
StrictMock<MockQuicConnection>* connection_;
StrictMock<MockQuicSessionVisitor> session_owner_;
StrictMock<MockQuicCryptoServerStreamHelper> session_helper_;
std::unique_ptr<QuicCryptoServerConfig> crypto_config_;
QuicCompressedCertsCache compressed_certs_cache_;
QuicMemoryCacheBackend memory_cache_backend_;
std::unique_ptr<QuicSimpleServerBackend> replacement_backend_;
StrictMock<MockQuicSimpleServerSession> session_;
StrictMock<TestStream>* stream_;
std::unique_ptr<QuicBackendResponse> quic_response_;
std::string body_;
QuicHeaderList header_list_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicSimpleServerStreamTest,
::testing::ValuesIn(AllSupportedVersions()),
::testing::PrintToStringParamName());
TEST_P(QuicSimpleServerStreamTest, TestFraming) {
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
stream_->OnStreamHeaderList(false, kFakeFrameLen, header_list_);
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body_.length(), quiche::SimpleBufferAllocator::Get());
std::string data =
UsesHttp3() ? absl::StrCat(header.AsStringView(), body_) : body_;
stream_->OnStreamFrame(
QuicStreamFrame(stream_->id(), false, 0, data));
EXPECT_EQ("11", StreamHeadersValue("content-length"));
EXPECT_EQ("/", StreamHeadersValue(":path"));
EXPECT_EQ("POST", StreamHeadersValue(":method"));
EXPECT_EQ(body_, StreamBody());
}
TEST_P(QuicSimpleServerStreamTest, TestFramingOnePacket) {
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
stream_->OnStreamHeaderList(false, kFakeFrameLen, header_list_);
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body_.length(), quiche::SimpleBufferAllocator::Get());
std::string data =
UsesHttp3() ? absl::StrCat(header.AsStringView(), body_) : body_;
stream_->OnStreamFrame(
QuicStreamFrame(stream_->id(), false, 0, data));
EXPECT_EQ("11", StreamHeadersValue("content-length"));
EXPECT_EQ("/", StreamHeadersValue(":path"));
EXPECT_EQ("POST", StreamHeadersValue(":method"));
EXPECT_EQ(body_, StreamBody());
}
TEST_P(QuicSimpleServerStreamTest, SendQuicRstStreamNoErrorInStopReading) {
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
EXPECT_FALSE(stream_->fin_received());
EXPECT_FALSE(stream_->rst_received());
QuicStreamPeer::SetFinSent(stream_);
stream_->CloseWriteSide();
if (session_.version().UsesHttp3()) {
EXPECT_CALL(session_,
MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal(
QUIC_STREAM_NO_ERROR)))
.Times(1);
} else {
EXPECT_CALL(
session_,
MaybeSendRstStreamFrame(
_, QuicResetStreamError::FromInternal(QUIC_STREAM_NO_ERROR), _))
.Times(1);
}
stream_->StopReading();
}
TEST_P(QuicSimpleServerStreamTest, TestFramingExtraData) {
InSequence seq;
std::string large_body = "hello world!!!!!!";
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_,
WritevData(_, kDataFrameHeaderLength, _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, kErrorLength, _, FIN, _, _));
stream_->OnStreamHeaderList(false, kFakeFrameLen, header_list_);
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body_.length(), quiche::SimpleBufferAllocator::Get());
std::string data =
UsesHttp3() ? absl::StrCat(header.AsStringView(), body_) : body_;
stream_->OnStreamFrame(
QuicStreamFrame(stream_->id(), false, 0, data));
header = HttpEncoder::SerializeDataFrameHeader(
large_body.length(), quiche::SimpleBufferAllocator::Get());
std::string data2 = UsesHttp3()
? absl::StrCat(header.AsStringView(), large_body)
: large_body;
stream_->OnStreamFrame(
QuicStreamFrame(stream_->id(), true, data.size(), data2));
EXPECT_EQ("11", StreamHeadersValue("content-length"));
EXPECT_EQ("/", StreamHeadersValue(":path"));
EXPECT_EQ("POST", StreamHeadersValue(":method"));
}
TEST_P(QuicSimpleServerStreamTest, SendResponseWithIllegalResponseStatus) {
spdy::Http2HeaderBlock* request_headers = stream_->mutable_headers();
(*request_headers)[":path"] = "/bar";
(*request_headers)[":authority"] = "www.google.com";
(*request_headers)[":method"] = "GET";
response_headers_[":status"] = "200 OK";
response_headers_["content-length"] = "5";
std::string body = "Yummm";
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body.length(), quiche::SimpleBufferAllocator::Get());
memory_cache_backend_.AddResponse("www.google.com", "/bar",
std::move(response_headers_), body);
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_, WritevData(_, header.size(), _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, kErrorLength, _, FIN, _, _));
stream_->DoSendResponse();
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, SendResponseWithIllegalResponseStatus2) {
spdy::Http2HeaderBlock* request_headers = stream_->mutable_headers();
(*request_headers)[":path"] = "/bar";
(*request_headers)[":authority"] = "www.google.com";
(*request_headers)[":method"] = "GET";
response_headers_[":status"] = "+200";
response_headers_["content-length"] = "5";
std::string body = "Yummm";
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body.length(), quiche::SimpleBufferAllocator::Get());
memory_cache_backend_.AddResponse("www.google.com", "/bar",
std::move(response_headers_), body);
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_, WritevData(_, header.size(), _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, kErrorLength, _, FIN, _, _));
stream_->DoSendResponse();
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, SendResponseWithValidHeaders) {
spdy::Http2HeaderBlock* request_headers = stream_->mutable_headers();
(*request_headers)[":path"] = "/bar";
(*request_headers)[":authority"] = "www.google.com";
(*request_headers)[":method"] = "GET";
response_headers_[":status"] = "200";
response_headers_["content-length"] = "5";
std::string body = "Yummm";
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body.length(), quiche::SimpleBufferAllocator::Get());
memory_cache_backend_.AddResponse("www.google.com", "/bar",
std::move(response_headers_), body);
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_, WritevData(_, header.size(), _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, body.length(), _, FIN, _, _));
stream_->DoSendResponse();
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, SendResponseWithEarlyHints) {
std::string host = "www.google.com";
std::string request_path = "/foo";
std::string body = "Yummm";
spdy::Http2HeaderBlock* request_headers = stream_->mutable_headers();
(*request_headers)[":path"] = request_path;
(*request_headers)[":authority"] = host;
(*request_headers)[":method"] = "GET";
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body.length(), quiche::SimpleBufferAllocator::Get());
std::vector<spdy::Http2HeaderBlock> early_hints;
const size_t kNumEarlyHintsResponses = 2;
for (size_t i = 0; i < kNumEarlyHintsResponses; ++i) {
spdy::Http2HeaderBlock hints;
hints["link"] = "</image.png>; rel=preload; as=image";
early_hints.push_back(std::move(hints));
}
response_headers_[":status"] = "200";
response_headers_["content-length"] = "5";
memory_cache_backend_.AddResponseWithEarlyHints(
host, request_path, std::move(response_headers_), body, early_hints);
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
for (size_t i = 0; i < kNumEarlyHintsResponses; ++i) {
EXPECT_CALL(*stream_, WriteEarlyHintsHeadersMock(false));
}
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_, WritevData(_, header.size(), _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, body.length(), _, FIN, _, _));
stream_->DoSendResponse();
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
class AlarmTestDelegate : public QuicAlarm::DelegateWithoutContext {
public:
AlarmTestDelegate(TestStream* stream) : stream_(stream) {}
void OnAlarm() override { stream_->FireAlarmMock(); }
private:
TestStream* stream_;
};
TEST_P(QuicSimpleServerStreamTest, SendResponseWithDelay) {
spdy::Http2HeaderBlock* request_headers = stream_->mutable_headers();
std::string host = "www.google.com";
std::string path = "/bar";
(*request_headers)[":path"] = path;
(*request_headers)[":authority"] = host;
(*request_headers)[":method"] = "GET";
response_headers_[":status"] = "200";
response_headers_["content-length"] = "5";
std::string body = "Yummm";
QuicTime::Delta delay = QuicTime::Delta::FromMilliseconds(3000);
quiche::QuicheBuffer header = HttpEncoder::SerializeDataFrameHeader(
body.length(), quiche::SimpleBufferAllocator::Get());
memory_cache_backend_.AddResponse(host, path, std::move(response_headers_),
body);
auto did_delay_succeed =
memory_cache_backend_.SetResponseDelay(host, path, delay);
EXPECT_TRUE(did_delay_succeed);
auto did_invalid_delay_succeed =
memory_cache_backend_.SetResponseDelay(host, "nonsense", delay);
EXPECT_FALSE(did_invalid_delay_succeed);
std::unique_ptr<QuicAlarm> alarm(connection_->alarm_factory()->CreateAlarm(
new AlarmTestDelegate(stream_)));
alarm->Set(connection_->clock()->Now() + delay);
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
EXPECT_CALL(*stream_, FireAlarmMock());
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_, WritevData(_, header.size(), _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, body.length(), _, FIN, _, _));
stream_->DoSendResponse();
simulator_.RunFor(delay);
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, TestSendErrorResponse) {
QuicStreamPeer::SetFinReceived(stream_);
InSequence s;
EXPECT_CALL(*stream_, WriteHeadersMock(false));
if (UsesHttp3()) {
EXPECT_CALL(session_,
WritevData(_, kDataFrameHeaderLength, _, NO_FIN, _, _));
}
EXPECT_CALL(session_, WritevData(_, kErrorLength, _, FIN, _, _));
stream_->DoSendErrorResponse();
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, InvalidMultipleContentLength) {
spdy::Http2HeaderBlock request_headers;
header_list_.OnHeader("content-length", absl::string_view("11\00012", 5));
if (session_.version().UsesHttp3()) {
EXPECT_CALL(session_,
MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal(
QUIC_STREAM_NO_ERROR)));
}
EXPECT_CALL(*stream_, WriteHeadersMock(false));
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
stream_->OnStreamHeaderList(true, kFakeFrameLen, header_list_);
EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->reading_stopped());
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, InvalidLeadingNullContentLength) {
spdy::Http2HeaderBlock request_headers;
header_list_.OnHeader("content-length", absl::string_view("\00012", 3));
if (session_.version().UsesHttp3()) {
EXPECT_CALL(session_,
MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal(
QUIC_STREAM_NO_ERROR)));
}
EXPECT_CALL(*stream_, WriteHeadersMock(false));
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
stream_->OnStreamHeaderList(true, kFakeFrameLen, header_list_);
EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->reading_stopped());
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, InvalidMultipleContentLengthII) {
spdy::Http2HeaderBlock request_headers;
header_list_.OnHeader("content-length", absl::string_view("11\00011", 5));
if (session_.version().UsesHttp3()) {
EXPECT_CALL(session_,
MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal(
QUIC_STREAM_NO_ERROR)));
EXPECT_CALL(*stream_, WriteHeadersMock(false));
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _))
.WillRepeatedly(
Invoke(&session_, &MockQuicSimpleServerSession::ConsumeData));
}
stream_->OnStreamHeaderList(false, kFakeFrameLen, header_list_);
if (session_.version().UsesHttp3()) {
EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_TRUE(stream_->reading_stopped());
EXPECT_TRUE(stream_->write_side_closed());
} else {
EXPECT_EQ(11, stream_->content_length());
EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_));
EXPECT_FALSE(stream_->reading_stopped());
EXPECT_FALSE(stream_->write_side_closed());
}
}
TEST_P(QuicSimpleServerStreamTest,
DoNotSendQuicRstStreamNoErrorWithRstReceived) {
EXPECT_FALSE(stream_->reading_stopped());
if (VersionUsesHttp3(connection_->transport_version())) {
auto* qpack_decoder_stream =
QuicSpdySessionPeer::GetQpackDecoderSendStream(&session_);
EXPECT_CALL(session_, WritevData(qpack_decoder_stream->id(), _, _, _, _, _))
.Times(AnyNumber());
}
EXPECT_CALL(
session_,
MaybeSendRstStreamFrame(
_,
session_.version().UsesHttp3()
? QuicResetStreamError::FromInternal(QUIC_STREAM_CANCELLED)
: QuicResetStreamError::FromInternal(QUIC_RST_ACKNOWLEDGEMENT),
_))
.Times(1);
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
stream_->OnStreamReset(rst_frame);
if (VersionHasIetfQuicFrames(connection_->transport_version())) {
EXPECT_CALL(session_owner_, OnStopSendingReceived(_));
QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED);
session_.OnStopSendingFrame(stop_sending);
}
EXPECT_TRUE(stream_->reading_stopped());
EXPECT_TRUE(stream_->write_side_closed());
}
TEST_P(QuicSimpleServerStreamTest, InvalidHeadersWithFin) {
char arr[] = {
0x3a, 0x68, 0x6f, 0x73,
0x74, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x07, 0x3a, 0x6d, 0x65,
0x74, 0x68, 0x6f, 0x64,
0x00, 0x00, 0x00, 0x03,
0x47, 0x45, 0x54, 0x00,
0x00, 0x00, 0x05, 0x3a,
0x70, 0x61, 0x74, 0x68,
0x00, 0x00, 0x00, 0x04,
0x2f, 0x66, 0x6f, 0x6f,
0x00, 0x00, 0x00, 0x07,
0x3a, 0x73, 0x63, 0x68,
0x65, 0x6d, 0x65, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x08, 0x3a,
0x76, 0x65, 0x72, 0x73,
'\x96', 0x6f, 0x6e, 0x00,
0x00, 0x00, 0x08, 0x48,
0x54, 0x54, 0x50, 0x2f,
0x31, 0x2e, 0x31,
};
absl::string_view data(arr, ABSL_ARRAYSIZE(arr));
QuicStreamFrame frame(stream_->id(), true, 0, data);
stream_->OnStreamFrame(frame);
}
class TestQuicSimpleServerBackend : public QuicSimpleServerBackend {
public:
TestQuicSimpleServerBackend() = default;
~TestQuicSimpleServerBackend() override = default;
bool InitializeBackend(const std::string& ) override {
return true;
}
bool IsBackendInitialized() const override { return true; }
MOCK_METHOD(void, FetchResponseFromBackend,
(const spdy::Http2HeaderBlock&, const std::string&,
RequestHandler*),
(override));
MOCK_METHOD(void, HandleConnectHeaders,
(const spdy::Http2HeaderBlock&, RequestHandler*), (override));
MOCK_METHOD(void, HandleConnectData,
(absl::string_view, bool, RequestHandler*), (override));
void CloseBackendResponseStream(
RequestHandler* ) override {}
};
ACTION_P(SendHeadersResponse, response_ptr) {
arg1->OnResponseBackendComplete(response_ptr);
}
ACTION_P(SendStreamData, data, close_stream) {
arg2->SendStreamData(data, close_stream);
}
ACTION_P(TerminateStream, error) { arg1->TerminateStreamWithError(error); }
TEST_P(QuicSimpleServerStreamTest, ConnectSendsIntermediateResponses) {
auto test_backend = std::make_unique<TestQuicSimpleServerBackend>();
TestQuicSimpleServerBackend* test_backend_ptr = test_backend.get();
ReplaceBackend(std::move(test_backend));
constexpr absl::string_view kRequestBody = "\x11\x11";
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
QuicBackendResponse headers_response;
headers_response.set_headers(response_headers.Clone());
headers_response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
constexpr absl::string_view kBody1 = "\x22\x22";
constexpr absl::string_view kBody2 = "\x33\x33";
InSequence s;
EXPECT_CALL(*test_backend_ptr, HandleConnectHeaders(_, _))
.WillOnce(SendHeadersResponse(&headers_response));
EXPECT_CALL(*stream_, WriteHeadersMock(false));
EXPECT_CALL(*test_backend_ptr, HandleConnectData(kRequestBody, false, _))
.WillOnce(SendStreamData(kBody1,
false));
EXPECT_CALL(*stream_, WriteOrBufferBody(kBody1, false));
EXPECT_CALL(*test_backend_ptr, HandleConnectData(kRequestBody, true, _))
.WillOnce(SendStreamData(kBody2,
true));
EXPECT_CALL(*stream_, WriteOrBufferBody(kBody2, true));
QuicHeaderList header_list;
header_list.OnHeaderBlockStart();
header_list.OnHeader(":authority", "www.google.com:4433");
header_list.OnHeader(":method", "CONNECT");
header_list.OnHeaderBlockEnd(128, 128);
stream_->OnStreamHeaderList(false, kFakeFrameLen, header_list);
quiche::QuicheBuffer h |
204 | cpp | google/quiche | quic_simple_server_session | quiche/quic/tools/quic_simple_server_session.cc | quiche/quic/tools/quic_simple_server_session_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_SIMPLE_SERVER_SESSION_H_
#define QUICHE_QUIC_TOOLS_QUIC_SIMPLE_SERVER_SESSION_H_
#include <stdint.h>
#include <list>
#include <memory>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/http/quic_server_session_base.h"
#include "quiche/quic/core/http/quic_spdy_session.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/quic/tools/quic_simple_server_stream.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
namespace test {
class QuicSimpleServerSessionPeer;
}
class QuicSimpleServerSession : public QuicServerSessionBase {
public:
QuicSimpleServerSession(const QuicConfig& config,
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection,
QuicSession::Visitor* visitor,
QuicCryptoServerStreamBase::Helper* helper,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSimpleServerBackend* quic_simple_server_backend);
QuicSimpleServerSession(const QuicSimpleServerSession&) = delete;
QuicSimpleServerSession& operator=(const QuicSimpleServerSession&) = delete;
~QuicSimpleServerSession() override;
void OnStreamFrame(const QuicStreamFrame& frame) override;
protected:
QuicSpdyStream* CreateIncomingStream(QuicStreamId id) override;
QuicSpdyStream* CreateIncomingStream(PendingStream* pending) override;
QuicSpdyStream* CreateOutgoingBidirectionalStream() override;
QuicSimpleServerStream* CreateOutgoingUnidirectionalStream() override;
std::unique_ptr<QuicCryptoServerStreamBase> CreateQuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache) override;
QuicStream* ProcessBidirectionalPendingStream(
PendingStream* pending) override;
QuicSimpleServerBackend* server_backend() {
return quic_simple_server_backend_;
}
WebTransportHttp3VersionSet LocallySupportedWebTransportVersions()
const override {
return quic_simple_server_backend_->SupportsWebTransport()
? kDefaultSupportedWebTransportVersions
: WebTransportHttp3VersionSet();
}
HttpDatagramSupport LocalHttpDatagramSupport() override {
if (ShouldNegotiateWebTransport()) {
return HttpDatagramSupport::kRfcAndDraft04;
}
return QuicServerSessionBase::LocalHttpDatagramSupport();
}
private:
friend class test::QuicSimpleServerSessionPeer;
QuicSimpleServerBackend* quic_simple_server_backend_;
};
}
#endif
#include "quiche/quic/tools/quic_simple_server_session.h"
#include <memory>
#include <utility>
#include "absl/memory/memory.h"
#include "quiche/quic/core/http/quic_server_initiated_spdy_stream.h"
#include "quiche/quic/core/http/quic_spdy_session.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/tools/quic_simple_server_stream.h"
namespace quic {
QuicSimpleServerSession::QuicSimpleServerSession(
const QuicConfig& config, const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection, QuicSession::Visitor* visitor,
QuicCryptoServerStreamBase::Helper* helper,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicServerSessionBase(config, supported_versions, connection, visitor,
helper, crypto_config, compressed_certs_cache),
quic_simple_server_backend_(quic_simple_server_backend) {
QUICHE_DCHECK(quic_simple_server_backend_);
set_max_streams_accepted_per_loop(5u);
}
QuicSimpleServerSession::~QuicSimpleServerSession() { DeleteConnection(); }
std::unique_ptr<QuicCryptoServerStreamBase>
QuicSimpleServerSession::CreateQuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache) {
return CreateCryptoServerStream(crypto_config, compressed_certs_cache, this,
stream_helper());
}
void QuicSimpleServerSession::OnStreamFrame(const QuicStreamFrame& frame) {
if (!IsIncomingStream(frame.stream_id) && !WillNegotiateWebTransport()) {
QUIC_LOG(WARNING) << "Client shouldn't send data on server push stream";
connection()->CloseConnection(
QUIC_INVALID_STREAM_ID, "Client sent data on server push stream",
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
return;
}
QuicSpdySession::OnStreamFrame(frame);
}
QuicSpdyStream* QuicSimpleServerSession::CreateIncomingStream(QuicStreamId id) {
if (!ShouldCreateIncomingStream(id)) {
return nullptr;
}
QuicSpdyStream* stream = new QuicSimpleServerStream(
id, this, BIDIRECTIONAL, quic_simple_server_backend_);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
QuicSpdyStream* QuicSimpleServerSession::CreateIncomingStream(
PendingStream* pending) {
QuicSpdyStream* stream =
new QuicSimpleServerStream(pending, this, quic_simple_server_backend_);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
QuicSpdyStream* QuicSimpleServerSession::CreateOutgoingBidirectionalStream() {
if (!WillNegotiateWebTransport()) {
QUIC_BUG(QuicSimpleServerSession CreateOutgoingBidirectionalStream without
WebTransport support)
<< "QuicSimpleServerSession::CreateOutgoingBidirectionalStream called "
"in a session without WebTransport support.";
return nullptr;
}
if (!ShouldCreateOutgoingBidirectionalStream()) {
return nullptr;
}
QuicServerInitiatedSpdyStream* stream = new QuicServerInitiatedSpdyStream(
GetNextOutgoingBidirectionalStreamId(), this, BIDIRECTIONAL);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
QuicSimpleServerStream*
QuicSimpleServerSession::CreateOutgoingUnidirectionalStream() {
if (!ShouldCreateOutgoingUnidirectionalStream()) {
return nullptr;
}
QuicSimpleServerStream* stream = new QuicSimpleServerStream(
GetNextOutgoingUnidirectionalStreamId(), this, WRITE_UNIDIRECTIONAL,
quic_simple_server_backend_);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
QuicStream* QuicSimpleServerSession::ProcessBidirectionalPendingStream(
PendingStream* pending) {
QUICHE_DCHECK(IsEncryptionEstablished());
return CreateIncomingStream(pending);
}
} | #include "quiche/quic/tools/quic_simple_server_session.h"
#include <algorithm>
#include <memory>
#include <utility>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/http/http_encoder.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_crypto_server_stream.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_server_handshaker.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/mock_quic_session_visitor.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_sent_packet_manager_peer.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_spdy_session_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_sustained_bandwidth_recorder_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_memory_cache_backend.h"
#include "quiche/quic/tools/quic_simple_server_stream.h"
using testing::_;
using testing::AtLeast;
using testing::InSequence;
using testing::Invoke;
using testing::Return;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
const char* const kStreamData = "\1z";
}
class QuicSimpleServerSessionPeer {
public:
static void SetCryptoStream(QuicSimpleServerSession* s,
QuicCryptoServerStreamBase* crypto_stream) {
s->crypto_stream_.reset(crypto_stream);
}
static QuicSpdyStream* CreateIncomingStream(QuicSimpleServerSession* s,
QuicStreamId id) {
return s->CreateIncomingStream(id);
}
static QuicSimpleServerStream* CreateOutgoingUnidirectionalStream(
QuicSimpleServerSession* s) {
return s->CreateOutgoingUnidirectionalStream();
}
};
namespace {
const size_t kMaxStreamsForTest = 10;
class MockQuicCryptoServerStream : public QuicCryptoServerStream {
public:
explicit MockQuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache, QuicSession* session,
QuicCryptoServerStreamBase::Helper* helper)
: QuicCryptoServerStream(crypto_config, compressed_certs_cache, session,
helper) {}
MockQuicCryptoServerStream(const MockQuicCryptoServerStream&) = delete;
MockQuicCryptoServerStream& operator=(const MockQuicCryptoServerStream&) =
delete;
~MockQuicCryptoServerStream() override {}
MOCK_METHOD(void, SendServerConfigUpdate, (const CachedNetworkParameters*),
(override));
bool encryption_established() const override { return true; }
};
class MockTlsServerHandshaker : public TlsServerHandshaker {
public:
explicit MockTlsServerHandshaker(QuicSession* session,
const QuicCryptoServerConfig* crypto_config)
: TlsServerHandshaker(session, crypto_config) {}
MockTlsServerHandshaker(const MockTlsServerHandshaker&) = delete;
MockTlsServerHandshaker& operator=(const MockTlsServerHandshaker&) = delete;
~MockTlsServerHandshaker() override {}
MOCK_METHOD(void, SendServerConfigUpdate, (const CachedNetworkParameters*),
(override));
bool encryption_established() const override { return true; }
};
class MockQuicConnectionWithSendStreamData : public MockQuicConnection {
public:
MockQuicConnectionWithSendStreamData(
MockQuicConnectionHelper* helper, MockAlarmFactory* alarm_factory,
Perspective perspective,
const ParsedQuicVersionVector& supported_versions)
: MockQuicConnection(helper, alarm_factory, perspective,
supported_versions) {
auto consume_all_data = [](QuicStreamId , size_t write_length,
QuicStreamOffset ,
StreamSendingState state) {
return QuicConsumedData(write_length, state != NO_FIN);
};
ON_CALL(*this, SendStreamData(_, _, _, _))
.WillByDefault(Invoke(consume_all_data));
}
MOCK_METHOD(QuicConsumedData, SendStreamData,
(QuicStreamId id, size_t write_length, QuicStreamOffset offset,
StreamSendingState state),
(override));
};
class MockQuicSimpleServerSession : public QuicSimpleServerSession {
public:
MockQuicSimpleServerSession(
const QuicConfig& config, QuicConnection* connection,
QuicSession::Visitor* visitor, QuicCryptoServerStreamBase::Helper* helper,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicSimpleServerSession(
config, CurrentSupportedVersions(), connection, visitor, helper,
crypto_config, compressed_certs_cache, quic_simple_server_backend) {
}
MOCK_METHOD(void, SendBlocked, (QuicStreamId, QuicStreamOffset), (override));
MOCK_METHOD(bool, WriteControlFrame,
(const QuicFrame& frame, TransmissionType type), (override));
};
class QuicSimpleServerSessionTest
: public QuicTestWithParam<ParsedQuicVersion> {
public:
bool ClearMaxStreamsControlFrame(const QuicFrame& frame) {
if (frame.type == MAX_STREAMS_FRAME) {
DeleteFrame(&const_cast<QuicFrame&>(frame));
return true;
}
return false;
}
protected:
QuicSimpleServerSessionTest()
: crypto_config_(QuicCryptoServerConfig::TESTING,
QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default()),
compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize) {
config_.SetMaxBidirectionalStreamsToSend(kMaxStreamsForTest);
QuicConfigPeer::SetReceivedMaxBidirectionalStreams(&config_,
kMaxStreamsForTest);
config_.SetMaxUnidirectionalStreamsToSend(kMaxStreamsForTest);
config_.SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindowForTest);
config_.SetInitialMaxStreamDataBytesIncomingBidirectionalToSend(
kInitialStreamFlowControlWindowForTest);
config_.SetInitialMaxStreamDataBytesOutgoingBidirectionalToSend(
kInitialStreamFlowControlWindowForTest);
config_.SetInitialMaxStreamDataBytesUnidirectionalToSend(
kInitialStreamFlowControlWindowForTest);
config_.SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindowForTest);
if (VersionUsesHttp3(transport_version())) {
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(
&config_, kMaxStreamsForTest + 3);
} else {
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(&config_,
kMaxStreamsForTest);
}
ParsedQuicVersionVector supported_versions = SupportedVersions(version());
connection_ = new StrictMock<MockQuicConnectionWithSendStreamData>(
&helper_, &alarm_factory_, Perspective::IS_SERVER, supported_versions);
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
session_ = std::make_unique<MockQuicSimpleServerSession>(
config_, connection_, &owner_, &stream_helper_, &crypto_config_,
&compressed_certs_cache_, &memory_cache_backend_);
MockClock clock;
handshake_message_ = crypto_config_.AddDefaultConfig(
QuicRandom::GetInstance(), &clock,
QuicCryptoServerConfig::ConfigOptions());
session_->Initialize();
if (VersionHasIetfQuicFrames(transport_version())) {
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
}
session_->OnConfigNegotiated();
}
QuicStreamId GetNthClientInitiatedBidirectionalId(int n) {
return GetNthClientInitiatedBidirectionalStreamId(transport_version(), n);
}
QuicStreamId GetNthServerInitiatedUnidirectionalId(int n) {
return quic::test::GetNthServerInitiatedUnidirectionalStreamId(
transport_version(), n);
}
ParsedQuicVersion version() const { return GetParam(); }
QuicTransportVersion transport_version() const {
return version().transport_version;
}
void InjectStopSending(QuicStreamId stream_id,
QuicRstStreamErrorCode rst_stream_code) {
if (!VersionHasIetfQuicFrames(transport_version())) {
return;
}
EXPECT_CALL(owner_, OnStopSendingReceived(_)).Times(1);
QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_id,
rst_stream_code);
EXPECT_CALL(*connection_, OnStreamReset(stream_id, rst_stream_code));
session_->OnStopSendingFrame(stop_sending);
}
StrictMock<MockQuicSessionVisitor> owner_;
StrictMock<MockQuicCryptoServerStreamHelper> stream_helper_;
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
StrictMock<MockQuicConnectionWithSendStreamData>* connection_;
QuicConfig config_;
QuicCryptoServerConfig crypto_config_;
QuicCompressedCertsCache compressed_certs_cache_;
QuicMemoryCacheBackend memory_cache_backend_;
std::unique_ptr<MockQuicSimpleServerSession> session_;
std::unique_ptr<CryptoHandshakeMessage> handshake_message_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicSimpleServerSessionTest,
::testing::ValuesIn(AllSupportedVersions()),
::testing::PrintToStringParamName());
TEST_P(QuicSimpleServerSessionTest, CloseStreamDueToReset) {
QuicStreamFrame data1(GetNthClientInitiatedBidirectionalId(0), false, 0,
kStreamData);
session_->OnStreamFrame(data1);
EXPECT_EQ(1u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
QuicRstStreamFrame rst1(kInvalidControlFrameId,
GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM, 0);
EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1);
EXPECT_CALL(*session_, WriteControlFrame(_, _));
if (!VersionHasIetfQuicFrames(transport_version())) {
EXPECT_CALL(*connection_,
OnStreamReset(GetNthClientInitiatedBidirectionalId(0),
QUIC_RST_ACKNOWLEDGEMENT));
}
session_->OnRstStream(rst1);
InjectStopSending(GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM);
EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
session_->OnStreamFrame(data1);
EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
EXPECT_TRUE(connection_->connected());
}
TEST_P(QuicSimpleServerSessionTest, NeverOpenStreamDueToReset) {
QuicRstStreamFrame rst1(kInvalidControlFrameId,
GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM, 0);
EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1);
if (!VersionHasIetfQuicFrames(transport_version())) {
EXPECT_CALL(*session_, WriteControlFrame(_, _));
EXPECT_CALL(*connection_,
OnStreamReset(GetNthClientInitiatedBidirectionalId(0),
QUIC_RST_ACKNOWLEDGEMENT));
}
session_->OnRstStream(rst1);
InjectStopSending(GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM);
EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
QuicStreamFrame data1(GetNthClientInitiatedBidirectionalId(0), false, 0,
kStreamData);
session_->OnStreamFrame(data1);
EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
EXPECT_TRUE(connection_->connected());
}
TEST_P(QuicSimpleServerSessionTest, AcceptClosedStream) {
QuicStreamFrame frame1(GetNthClientInitiatedBidirectionalId(0), false, 0,
kStreamData);
QuicStreamFrame frame2(GetNthClientInitiatedBidirectionalId(1), false, 0,
kStreamData);
session_->OnStreamFrame(frame1);
session_->OnStreamFrame(frame2);
EXPECT_EQ(2u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
QuicRstStreamFrame rst(kInvalidControlFrameId,
GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM, 0);
EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1);
if (!VersionHasIetfQuicFrames(transport_version())) {
EXPECT_CALL(*session_, WriteControlFrame(_, _));
EXPECT_CALL(*connection_,
OnStreamReset(GetNthClientInitiatedBidirectionalId(0),
QUIC_RST_ACKNOWLEDGEMENT));
}
session_->OnRstStream(rst);
InjectStopSending(GetNthClientInitiatedBidirectionalId(0),
QUIC_ERROR_PROCESSING_STREAM);
QuicStreamFrame frame3(GetNthClientInitiatedBidirectionalId(0), false, 2,
kStreamData);
QuicStreamFrame frame4(GetNthClientInitiatedBidirectionalId(1), false, 2,
kStreamData);
session_->OnStreamFrame(frame3);
session_->OnStreamFrame(frame4);
EXPECT_EQ(1u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
EXPECT_TRUE(connection_->connected());
}
TEST_P(QuicSimpleServerSessionTest, CreateIncomingStreamDisconnected) {
if (version() != AllSupportedVersions()[0]) {
return;
}
size_t initial_num_open_stream =
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get());
QuicConnectionPeer::TearDownLocalConnectionState(connection_);
EXPECT_QUIC_BUG(QuicSimpleServerSessionPeer::CreateIncomingStream(
session_.get(), GetNthClientInitiatedBidirectionalId(0)),
"ShouldCreateIncomingStream called when disconnected");
EXPECT_EQ(initial_num_open_stream,
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
}
TEST_P(QuicSimpleServerSessionTest, CreateIncomingStream) {
QuicSpdyStream* stream = QuicSimpleServerSessionPeer::CreateIncomingStream(
session_.get(), GetNthClientInitiatedBidirectionalId(0));
EXPECT_NE(nullptr, stream);
EXPECT_EQ(GetNthClientInitiatedBidirectionalId(0), stream->id());
}
TEST_P(QuicSimpleServerSessionTest, CreateOutgoingDynamicStreamDisconnected) {
if (version() != AllSupportedVersions()[0]) {
return;
}
size_t initial_num_open_stream =
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get());
QuicConnectionPeer::TearDownLocalConnectionState(connection_);
EXPECT_QUIC_BUG(
QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream(
session_.get()),
"ShouldCreateOutgoingUnidirectionalStream called when disconnected");
EXPECT_EQ(initial_num_open_stream,
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
}
TEST_P(QuicSimpleServerSessionTest, CreateOutgoingDynamicStreamUnencrypted) {
if (version() != AllSupportedVersions()[0]) {
return;
}
size_t initial_num_open_stream =
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get());
EXPECT_QUIC_BUG(
QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream(
session_.get()),
"Encryption not established so no outgoing stream created.");
EXPECT_EQ(initial_num_open_stream,
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
}
TEST_P(QuicSimpleServerSessionTest, GetEvenIncomingError) {
const size_t initial_num_open_stream =
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get());
const QuicErrorCode expected_error = VersionUsesHttp3(transport_version())
? QUIC_HTTP_STREAM_WRONG_DIRECTION
: QUIC_INVALID_STREAM_ID;
EXPECT_CALL(*connection_, CloseConnection(expected_error,
"Data for nonexistent stream", _));
EXPECT_EQ(nullptr,
QuicSessionPeer::GetOrCreateStream(
session_.get(), GetNthServerInitiatedUnidirectionalId(3)));
EXPECT_EQ(initial_num_open_stream,
QuicSessionPeer::GetNumOpenDynamicStreams(session_.get()));
}
}
}
} |
205 | cpp | google/quiche | quic_default_client | quiche/quic/tools/quic_default_client.cc | quiche/quic/tools/quic_default_client_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_DEFAULT_CLIENT_H_
#define QUICHE_QUIC_TOOLS_QUIC_DEFAULT_CLIENT_H_
#include <cstdint>
#include <memory>
#include <string>
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/tools/quic_client_default_network_helper.h"
#include "quiche/quic/tools/quic_spdy_client_base.h"
namespace quic {
class QuicServerId;
namespace test {
class QuicDefaultClientPeer;
}
class QuicDefaultClient : public QuicSpdyClientBase {
public:
QuicDefaultClient(QuicSocketAddress server_address,
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier);
QuicDefaultClient(QuicSocketAddress server_address,
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache);
QuicDefaultClient(QuicSocketAddress server_address,
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
const QuicConfig& config, QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache);
QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier);
QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
const QuicConfig& config, QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier);
QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
const QuicConfig& config, QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache);
QuicDefaultClient(const QuicDefaultClient&) = delete;
QuicDefaultClient& operator=(const QuicDefaultClient&) = delete;
~QuicDefaultClient() override;
std::unique_ptr<QuicSession> CreateQuicClientSession(
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection) override;
int GetLatestFD() const { return default_network_helper()->GetLatestFD(); }
QuicClientDefaultNetworkHelper* default_network_helper();
const QuicClientDefaultNetworkHelper* default_network_helper() const;
};
}
#endif
#include "quiche/quic/tools/quic_default_client.h"
#include <memory>
#include <utility>
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_default_connection_helper.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/tools/quic_simple_client_session.h"
namespace quic {
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop, std::unique_ptr<ProofVerifier> proof_verifier)
: QuicDefaultClient(
server_address, server_id, supported_versions, QuicConfig(),
event_loop,
std::make_unique<QuicClientDefaultNetworkHelper>(event_loop, this),
std::move(proof_verifier), nullptr) {}
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop, std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache)
: QuicDefaultClient(
server_address, server_id, supported_versions, QuicConfig(),
event_loop,
std::make_unique<QuicClientDefaultNetworkHelper>(event_loop, this),
std::move(proof_verifier), std::move(session_cache)) {}
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions, const QuicConfig& config,
QuicEventLoop* event_loop, std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache)
: QuicDefaultClient(
server_address, server_id, supported_versions, config, event_loop,
std::make_unique<QuicClientDefaultNetworkHelper>(event_loop, this),
std::move(proof_verifier), std::move(session_cache)) {}
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier)
: QuicDefaultClient(server_address, server_id, supported_versions,
QuicConfig(), event_loop, std::move(network_helper),
std::move(proof_verifier), nullptr) {}
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions, const QuicConfig& config,
QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier)
: QuicDefaultClient(server_address, server_id, supported_versions, config,
event_loop, std::move(network_helper),
std::move(proof_verifier), nullptr) {}
QuicDefaultClient::QuicDefaultClient(
QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions, const QuicConfig& config,
QuicEventLoop* event_loop,
std::unique_ptr<QuicClientDefaultNetworkHelper> network_helper,
std::unique_ptr<ProofVerifier> proof_verifier,
std::unique_ptr<SessionCache> session_cache)
: QuicSpdyClientBase(server_id, supported_versions, config,
new QuicDefaultConnectionHelper(),
event_loop->CreateAlarmFactory().release(),
std::move(network_helper), std::move(proof_verifier),
std::move(session_cache)) {
set_server_address(server_address);
}
QuicDefaultClient::~QuicDefaultClient() = default;
std::unique_ptr<QuicSession> QuicDefaultClient::CreateQuicClientSession(
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection) {
return std::make_unique<QuicSimpleClientSession>(
*config(), supported_versions, connection, this, network_helper(),
server_id(), crypto_config(), drop_response_body(),
enable_web_transport());
}
QuicClientDefaultNetworkHelper* QuicDefaultClient::default_network_helper() {
return static_cast<QuicClientDefaultNetworkHelper*>(network_helper());
}
const QuicClientDefaultNetworkHelper*
QuicDefaultClient::default_network_helper() const {
return static_cast<const QuicClientDefaultNetworkHelper*>(network_helper());
}
} | #if defined(__linux__)
#include "quiche/quic/tools/quic_default_client.h"
#include <dirent.h>
#include <sys/types.h>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/match.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/io/quic_default_event_loop.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
namespace test {
namespace {
const char* kPathToFds = "/proc/self/fd";
std::string ReadLink(const std::string& path) {
std::string result(PATH_MAX, '\0');
ssize_t result_size = readlink(path.c_str(), &result[0], result.size());
if (result_size < 0 && errno == ENOENT) {
return "";
}
QUICHE_CHECK(result_size > 0 &&
static_cast<size_t>(result_size) < result.size())
<< "result_size:" << result_size << ", errno:" << errno
<< ", path:" << path;
result.resize(result_size);
return result;
}
size_t NumOpenSocketFDs() {
size_t socket_count = 0;
dirent* file;
std::unique_ptr<DIR, int (*)(DIR*)> fd_directory(opendir(kPathToFds),
closedir);
while ((file = readdir(fd_directory.get())) != nullptr) {
absl::string_view name(file->d_name);
if (name == "." || name == "..") {
continue;
}
std::string fd_path = ReadLink(absl::StrCat(kPathToFds, "/", name));
if (absl::StartsWith(fd_path, "socket:")) {
socket_count++;
}
}
return socket_count;
}
class QuicDefaultClientTest : public QuicTest {
public:
QuicDefaultClientTest()
: event_loop_(GetDefaultEventLoop()->Create(QuicDefaultClock::Get())) {
CreateAndInitializeQuicClient();
}
std::unique_ptr<QuicDefaultClient> CreateAndInitializeQuicClient() {
QuicSocketAddress server_address(QuicSocketAddress(TestLoopback(), 0));
QuicServerId server_id("hostname", server_address.port(), false);
ParsedQuicVersionVector versions = AllSupportedVersions();
auto client = std::make_unique<QuicDefaultClient>(
server_address, server_id, versions, event_loop_.get(),
crypto_test_utils::ProofVerifierForTesting());
EXPECT_TRUE(client->Initialize());
return client;
}
private:
std::unique_ptr<QuicEventLoop> event_loop_;
};
TEST_F(QuicDefaultClientTest, DoNotLeakSocketFDs) {
size_t number_of_open_fds = NumOpenSocketFDs();
const int kNumClients = 50;
for (int i = 0; i < kNumClients; ++i) {
EXPECT_EQ(number_of_open_fds, NumOpenSocketFDs());
std::unique_ptr<QuicDefaultClient> client(CreateAndInitializeQuicClient());
EXPECT_EQ(number_of_open_fds + 1, NumOpenSocketFDs());
}
EXPECT_EQ(number_of_open_fds, NumOpenSocketFDs());
}
TEST_F(QuicDefaultClientTest, CreateAndCleanUpUDPSockets) {
size_t number_of_open_fds = NumOpenSocketFDs();
std::unique_ptr<QuicDefaultClient> client(CreateAndInitializeQuicClient());
EXPECT_EQ(number_of_open_fds + 1, NumOpenSocketFDs());
EXPECT_TRUE(client->default_network_helper()->CreateUDPSocketAndBind(
client->server_address(), client->bind_to_address(),
client->local_port()));
EXPECT_EQ(number_of_open_fds + 2, NumOpenSocketFDs());
EXPECT_TRUE(client->default_network_helper()->CreateUDPSocketAndBind(
client->server_address(), client->bind_to_address(),
client->local_port()));
EXPECT_EQ(number_of_open_fds + 3, NumOpenSocketFDs());
client->default_network_helper()->CleanUpUDPSocket(client->GetLatestFD());
EXPECT_EQ(number_of_open_fds + 2, NumOpenSocketFDs());
client->default_network_helper()->CleanUpUDPSocket(client->GetLatestFD());
EXPECT_EQ(number_of_open_fds + 1, NumOpenSocketFDs());
}
}
}
}
#endif |
206 | cpp | google/quiche | connect_tunnel | quiche/quic/tools/connect_tunnel.cc | quiche/quic/tools/connect_tunnel_test.cc | #ifndef QUICHE_QUIC_TOOLS_CONNECT_TUNNEL_H_
#define QUICHE_QUIC_TOOLS_CONNECT_TUNNEL_H_
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include "absl/container/flat_hash_set.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connecting_client_socket.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
class ConnectTunnel : public ConnectingClientSocket::AsyncVisitor {
public:
ConnectTunnel(
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler,
SocketFactory* socket_factory,
absl::flat_hash_set<QuicServerId> acceptable_destinations);
~ConnectTunnel();
ConnectTunnel(const ConnectTunnel&) = delete;
ConnectTunnel& operator=(const ConnectTunnel&) = delete;
void OpenTunnel(const spdy::Http2HeaderBlock& request_headers);
bool IsConnectedToDestination() const;
void SendDataToDestination(absl::string_view data);
void OnClientStreamClose();
void ConnectComplete(absl::Status status) override;
void ReceiveComplete(absl::StatusOr<quiche::QuicheMemSlice> data) override;
void SendComplete(absl::Status status) override;
private:
void BeginAsyncReadFromDestination();
void OnDataReceivedFromDestination(bool success);
void OnDestinationConnectionClosed();
void SendConnectResponse();
void TerminateClientStream(
absl::string_view error_description,
QuicResetStreamError error_code =
QuicResetStreamError::FromIetf(QuicHttp3ErrorCode::CONNECT_ERROR));
const absl::flat_hash_set<QuicServerId> acceptable_destinations_;
SocketFactory* const socket_factory_;
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler_;
std::unique_ptr<ConnectingClientSocket> destination_socket_;
bool receive_started_ = false;
};
}
#endif
#include "quiche/quic/tools/connect_tunnel.h"
#include <cstdint>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/container/flat_hash_set.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_name_lookup.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
namespace {
constexpr size_t kReadSize = 4 * 1024;
std::optional<QuicServerId> ValidateHeadersAndGetAuthority(
const spdy::Http2HeaderBlock& request_headers) {
QUICHE_DCHECK(request_headers.contains(":method"));
QUICHE_DCHECK(request_headers.find(":method")->second == "CONNECT");
QUICHE_DCHECK(!request_headers.contains(":protocol"));
auto scheme_it = request_headers.find(":scheme");
if (scheme_it != request_headers.end()) {
QUICHE_DVLOG(1) << "CONNECT request contains unexpected scheme: "
<< scheme_it->second;
return std::nullopt;
}
auto path_it = request_headers.find(":path");
if (path_it != request_headers.end()) {
QUICHE_DVLOG(1) << "CONNECT request contains unexpected path: "
<< path_it->second;
return std::nullopt;
}
auto authority_it = request_headers.find(":authority");
if (authority_it == request_headers.end() || authority_it->second.empty()) {
QUICHE_DVLOG(1) << "CONNECT request missing authority";
return std::nullopt;
}
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString(authority_it->second);
if (!server_id.has_value()) {
QUICHE_DVLOG(1) << "CONNECT request authority is malformed: "
<< authority_it->second;
return std::nullopt;
}
return server_id;
}
bool ValidateAuthority(
const QuicServerId& authority,
const absl::flat_hash_set<QuicServerId>& acceptable_destinations) {
if (acceptable_destinations.contains(authority)) {
return true;
}
QUICHE_DVLOG(1) << "CONNECT request authority: "
<< authority.ToHostPortString()
<< " is not an acceptable allow-listed destiation ";
return false;
}
}
ConnectTunnel::ConnectTunnel(
QuicSimpleServerBackend::RequestHandler* client_stream_request_handler,
SocketFactory* socket_factory,
absl::flat_hash_set<QuicServerId> acceptable_destinations)
: acceptable_destinations_(std::move(acceptable_destinations)),
socket_factory_(socket_factory),
client_stream_request_handler_(client_stream_request_handler) {
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DCHECK(socket_factory_);
}
ConnectTunnel::~ConnectTunnel() {
QUICHE_DCHECK_EQ(client_stream_request_handler_, nullptr);
QUICHE_DCHECK(!IsConnectedToDestination());
QUICHE_DCHECK(!receive_started_);
}
void ConnectTunnel::OpenTunnel(const spdy::Http2HeaderBlock& request_headers) {
QUICHE_DCHECK(!IsConnectedToDestination());
std::optional<QuicServerId> authority =
ValidateHeadersAndGetAuthority(request_headers);
if (!authority.has_value()) {
TerminateClientStream(
"invalid request headers",
QuicResetStreamError::FromIetf(QuicHttp3ErrorCode::MESSAGE_ERROR));
return;
}
if (!ValidateAuthority(authority.value(), acceptable_destinations_)) {
TerminateClientStream(
"disallowed request authority",
QuicResetStreamError::FromIetf(QuicHttp3ErrorCode::REQUEST_REJECTED));
return;
}
QuicSocketAddress address =
tools::LookupAddress(AF_UNSPEC, authority.value());
if (!address.IsInitialized()) {
TerminateClientStream("host resolution error");
return;
}
destination_socket_ =
socket_factory_->CreateTcpClientSocket(address,
0,
0,
this);
QUICHE_DCHECK(destination_socket_);
absl::Status connect_result = destination_socket_->ConnectBlocking();
if (!connect_result.ok()) {
TerminateClientStream(
"error connecting TCP socket to destination server: " +
connect_result.ToString());
return;
}
QUICHE_DVLOG(1) << "CONNECT tunnel opened from stream "
<< client_stream_request_handler_->stream_id() << " to "
<< authority.value().ToHostPortString();
SendConnectResponse();
BeginAsyncReadFromDestination();
}
bool ConnectTunnel::IsConnectedToDestination() const {
return !!destination_socket_;
}
void ConnectTunnel::SendDataToDestination(absl::string_view data) {
QUICHE_DCHECK(IsConnectedToDestination());
QUICHE_DCHECK(!data.empty());
absl::Status send_result =
destination_socket_->SendBlocking(std::string(data));
if (!send_result.ok()) {
TerminateClientStream("TCP error sending data to destination server: " +
send_result.ToString());
}
}
void ConnectTunnel::OnClientStreamClose() {
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DVLOG(1) << "CONNECT stream "
<< client_stream_request_handler_->stream_id() << " closed";
client_stream_request_handler_ = nullptr;
if (IsConnectedToDestination()) {
destination_socket_->Disconnect();
}
destination_socket_.reset();
}
void ConnectTunnel::ConnectComplete(absl::Status ) {
QUICHE_NOTREACHED();
}
void ConnectTunnel::ReceiveComplete(
absl::StatusOr<quiche::QuicheMemSlice> data) {
QUICHE_DCHECK(IsConnectedToDestination());
QUICHE_DCHECK(receive_started_);
receive_started_ = false;
if (!data.ok()) {
if (client_stream_request_handler_) {
TerminateClientStream("TCP error receiving data from destination server");
} else {
QUICHE_DVLOG(1) << "TCP error receiving data from destination server "
"after stream already closed.";
}
return;
} else if (data.value().empty()) {
OnDestinationConnectionClosed();
return;
}
QUICHE_DCHECK(client_stream_request_handler_);
client_stream_request_handler_->SendStreamData(data.value().AsStringView(),
false);
BeginAsyncReadFromDestination();
}
void ConnectTunnel::SendComplete(absl::Status ) {
QUICHE_NOTREACHED();
}
void ConnectTunnel::BeginAsyncReadFromDestination() {
QUICHE_DCHECK(IsConnectedToDestination());
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DCHECK(!receive_started_);
receive_started_ = true;
destination_socket_->ReceiveAsync(kReadSize);
}
void ConnectTunnel::OnDestinationConnectionClosed() {
QUICHE_DCHECK(IsConnectedToDestination());
QUICHE_DCHECK(client_stream_request_handler_);
QUICHE_DVLOG(1) << "CONNECT stream "
<< client_stream_request_handler_->stream_id()
<< " destination connection closed";
destination_socket_->Disconnect();
destination_socket_.reset();
QUICHE_DCHECK(client_stream_request_handler_);
client_stream_request_handler_->SendStreamData("", true);
}
void ConnectTunnel::SendConnectResponse() {
QUICHE_DCHECK(IsConnectedToDestination());
QUICHE_DCHECK(client_stream_request_handler_);
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
QuicBackendResponse response;
response.set_headers(std::move(response_headers));
response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
client_stream_request_handler_->OnResponseBackendComplete(&response);
}
void ConnectTunnel::TerminateClientStream(absl::string_view error_description,
QuicResetStreamError error_code) {
QUICHE_DCHECK(client_stream_request_handler_);
std::string error_description_str =
error_description.empty() ? ""
: absl::StrCat(" due to ", error_description);
QUICHE_DVLOG(1) << "Terminating CONNECT stream "
<< client_stream_request_handler_->stream_id()
<< " with error code " << error_code.ietf_application_code()
<< error_description_str;
client_stream_request_handler_->TerminateStreamWithError(error_code);
}
} | #include "quiche/quic/tools/connect_tunnel.h"
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include "absl/container/flat_hash_set.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connecting_client_socket.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/platform/api/quiche_test.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic::test {
namespace {
using ::testing::_;
using ::testing::AllOf;
using ::testing::AnyOf;
using ::testing::ElementsAre;
using ::testing::Eq;
using ::testing::Ge;
using ::testing::Gt;
using ::testing::InvokeWithoutArgs;
using ::testing::IsEmpty;
using ::testing::Matcher;
using ::testing::NiceMock;
using ::testing::Pair;
using ::testing::Property;
using ::testing::Return;
using ::testing::StrictMock;
class MockRequestHandler : public QuicSimpleServerBackend::RequestHandler {
public:
QuicConnectionId connection_id() const override {
return TestConnectionId(41212);
}
QuicStreamId stream_id() const override { return 100; }
std::string peer_host() const override { return "127.0.0.1"; }
MOCK_METHOD(QuicSpdyStream*, GetStream, (), (override));
MOCK_METHOD(void, OnResponseBackendComplete,
(const QuicBackendResponse* response), (override));
MOCK_METHOD(void, SendStreamData, (absl::string_view data, bool close_stream),
(override));
MOCK_METHOD(void, TerminateStreamWithError, (QuicResetStreamError error),
(override));
};
class MockSocketFactory : public SocketFactory {
public:
MOCK_METHOD(std::unique_ptr<ConnectingClientSocket>, CreateTcpClientSocket,
(const quic::QuicSocketAddress& peer_address,
QuicByteCount receive_buffer_size,
QuicByteCount send_buffer_size,
ConnectingClientSocket::AsyncVisitor* async_visitor),
(override));
MOCK_METHOD(std::unique_ptr<ConnectingClientSocket>,
CreateConnectingUdpClientSocket,
(const quic::QuicSocketAddress& peer_address,
QuicByteCount receive_buffer_size,
QuicByteCount send_buffer_size,
ConnectingClientSocket::AsyncVisitor* async_visitor),
(override));
};
class MockSocket : public ConnectingClientSocket {
public:
MOCK_METHOD(absl::Status, ConnectBlocking, (), (override));
MOCK_METHOD(void, ConnectAsync, (), (override));
MOCK_METHOD(void, Disconnect, (), (override));
MOCK_METHOD(absl::StatusOr<QuicSocketAddress>, GetLocalAddress, (),
(override));
MOCK_METHOD(absl::StatusOr<quiche::QuicheMemSlice>, ReceiveBlocking,
(QuicByteCount max_size), (override));
MOCK_METHOD(void, ReceiveAsync, (QuicByteCount max_size), (override));
MOCK_METHOD(absl::Status, SendBlocking, (std::string data), (override));
MOCK_METHOD(absl::Status, SendBlocking, (quiche::QuicheMemSlice data),
(override));
MOCK_METHOD(void, SendAsync, (std::string data), (override));
MOCK_METHOD(void, SendAsync, (quiche::QuicheMemSlice data), (override));
};
class ConnectTunnelTest : public quiche::test::QuicheTest {
public:
void SetUp() override {
#if defined(_WIN32)
WSADATA wsa_data;
const WORD version_required = MAKEWORD(2, 2);
ASSERT_EQ(WSAStartup(version_required, &wsa_data), 0);
#endif
auto socket = std::make_unique<StrictMock<MockSocket>>();
socket_ = socket.get();
ON_CALL(socket_factory_,
CreateTcpClientSocket(
AnyOf(QuicSocketAddress(TestLoopback4(), kAcceptablePort),
QuicSocketAddress(TestLoopback6(), kAcceptablePort)),
_, _, &tunnel_))
.WillByDefault(Return(ByMove(std::move(socket))));
}
protected:
static constexpr absl::string_view kAcceptableDestination = "localhost";
static constexpr uint16_t kAcceptablePort = 977;
StrictMock<MockRequestHandler> request_handler_;
NiceMock<MockSocketFactory> socket_factory_;
StrictMock<MockSocket>* socket_;
ConnectTunnel tunnel_{
&request_handler_,
&socket_factory_,
{{std::string(kAcceptableDestination), kAcceptablePort},
{TestLoopback4().ToString(), kAcceptablePort},
{absl::StrCat("[", TestLoopback6().ToString(), "]"), kAcceptablePort}}};
};
TEST_F(ConnectTunnelTest, OpenTunnel) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
spdy::Http2HeaderBlock expected_response_headers;
expected_response_headers[":status"] = "200";
QuicBackendResponse expected_response;
expected_response.set_headers(std::move(expected_response_headers));
expected_response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
EXPECT_CALL(request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
ElementsAre(Pair(":status", "200"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(kAcceptableDestination, ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
}
TEST_F(ConnectTunnelTest, OpenTunnelToIpv4LiteralDestination) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
spdy::Http2HeaderBlock expected_response_headers;
expected_response_headers[":status"] = "200";
QuicBackendResponse expected_response;
expected_response.set_headers(std::move(expected_response_headers));
expected_response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
EXPECT_CALL(request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
ElementsAre(Pair(":status", "200"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(TestLoopback4().ToString(), ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
}
TEST_F(ConnectTunnelTest, OpenTunnelToIpv6LiteralDestination) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
spdy::Http2HeaderBlock expected_response_headers;
expected_response_headers[":status"] = "200";
QuicBackendResponse expected_response;
expected_response.set_headers(std::move(expected_response_headers));
expected_response.set_response_type(QuicBackendResponse::INCOMPLETE_RESPONSE);
EXPECT_CALL(request_handler_,
OnResponseBackendComplete(
AllOf(Property(&QuicBackendResponse::response_type,
QuicBackendResponse::INCOMPLETE_RESPONSE),
Property(&QuicBackendResponse::headers,
ElementsAre(Pair(":status", "200"))),
Property(&QuicBackendResponse::trailers, IsEmpty()),
Property(&QuicBackendResponse::body, IsEmpty()))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat("[", TestLoopback6().ToString(), "]:", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
EXPECT_TRUE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
}
TEST_F(ConnectTunnelTest, OpenTunnelWithMalformedRequest) {
EXPECT_CALL(request_handler_,
TerminateStreamWithError(Property(
&QuicResetStreamError::ietf_application_code,
static_cast<uint64_t>(QuicHttp3ErrorCode::MESSAGE_ERROR))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
tunnel_.OpenTunnel(request_headers);
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectTunnelTest, OpenTunnelWithUnacceptableDestination) {
EXPECT_CALL(
request_handler_,
TerminateStreamWithError(Property(
&QuicResetStreamError::ietf_application_code,
static_cast<uint64_t>(QuicHttp3ErrorCode::REQUEST_REJECTED))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] = "unacceptable.test:100";
tunnel_.OpenTunnel(request_headers);
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectTunnelTest, ReceiveFromDestination) {
static constexpr absl::string_view kData = "\x11\x22\x33\x44\x55";
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Ge(kData.size()))).Times(2);
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
EXPECT_CALL(request_handler_, SendStreamData(kData, false));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(kAcceptableDestination, ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
tunnel_.ReceiveComplete(MemSliceFromString(kData));
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectTunnelTest, SendToDestination) {
static constexpr absl::string_view kData = "\x11\x22\x33\x44\x55";
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, SendBlocking(Matcher<std::string>(Eq(kData))))
.WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, Disconnect()).WillOnce(InvokeWithoutArgs([this]() {
tunnel_.ReceiveComplete(absl::CancelledError());
}));
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(kAcceptableDestination, ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
tunnel_.SendDataToDestination(kData);
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectTunnelTest, DestinationDisconnect) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect());
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
EXPECT_CALL(request_handler_, SendStreamData("", true));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(kAcceptableDestination, ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
tunnel_.ReceiveComplete(quiche::QuicheMemSlice());
EXPECT_FALSE(tunnel_.IsConnectedToDestination());
tunnel_.OnClientStreamClose();
}
TEST_F(ConnectTunnelTest, DestinationTcpConnectionError) {
EXPECT_CALL(*socket_, ConnectBlocking()).WillOnce(Return(absl::OkStatus()));
EXPECT_CALL(*socket_, ReceiveAsync(Gt(0)));
EXPECT_CALL(*socket_, Disconnect());
EXPECT_CALL(request_handler_, OnResponseBackendComplete(_));
EXPECT_CALL(request_handler_,
TerminateStreamWithError(Property(
&QuicResetStreamError::ietf_application_code,
static_cast<uint64_t>(QuicHttp3ErrorCode::CONNECT_ERROR))));
spdy::Http2HeaderBlock request_headers;
request_headers[":method"] = "CONNECT";
request_headers[":authority"] =
absl::StrCat(kAcceptableDestination, ":", kAcceptablePort);
tunnel_.OpenTunnel(request_headers);
tunnel_.ReceiveComplete(absl::UnknownError("error"));
tunnel_.OnClientStreamClose();
}
}
} |
207 | cpp | google/quiche | quic_server | quiche/quic/tools/quic_server.cc | quiche/quic/tools/quic_server_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_SERVER_H_
#define QUICHE_QUIC_TOOLS_QUIC_SERVER_H_
#include <memory>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/deterministic_connection_id_generator.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_udp_socket.h"
#include "quiche/quic/core/quic_version_manager.h"
#include "quiche/quic/core/socket_factory.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/quic/tools/quic_spdy_server_base.h"
namespace quic {
namespace test {
class QuicServerPeer;
}
class QuicDispatcher;
class QuicPacketReader;
class QuicServer : public QuicSpdyServerBase, public QuicSocketEventListener {
public:
QuicServer(std::unique_ptr<ProofSource> proof_source,
QuicSimpleServerBackend* quic_simple_server_backend);
QuicServer(std::unique_ptr<ProofSource> proof_source,
QuicSimpleServerBackend* quic_simple_server_backend,
const ParsedQuicVersionVector& supported_versions);
QuicServer(std::unique_ptr<ProofSource> proof_source,
const QuicConfig& config,
const QuicCryptoServerConfig::ConfigOptions& crypto_config_options,
const ParsedQuicVersionVector& supported_versions,
QuicSimpleServerBackend* quic_simple_server_backend,
uint8_t expected_server_connection_id_length);
QuicServer(const QuicServer&) = delete;
QuicServer& operator=(const QuicServer&) = delete;
~QuicServer() override;
bool CreateUDPSocketAndListen(const QuicSocketAddress& address) override;
void HandleEventsForever() override;
void WaitForEvents();
virtual void Shutdown();
void OnSocketEvent(QuicEventLoop* event_loop, QuicUdpSocketFd fd,
QuicSocketEventMask events) override;
void SetChloMultiplier(size_t multiplier) {
crypto_config_.set_chlo_multiplier(multiplier);
}
void SetPreSharedKey(absl::string_view key) {
crypto_config_.set_pre_shared_key(key);
}
bool overflow_supported() { return overflow_supported_; }
QuicPacketCount packets_dropped() { return packets_dropped_; }
int port() { return port_; }
QuicEventLoop* event_loop() { return event_loop_.get(); }
protected:
virtual QuicPacketWriter* CreateWriter(int fd);
virtual QuicDispatcher* CreateQuicDispatcher();
virtual std::unique_ptr<QuicEventLoop> CreateEventLoop();
const QuicConfig& config() const { return config_; }
const QuicCryptoServerConfig& crypto_config() const { return crypto_config_; }
QuicDispatcher* dispatcher() { return dispatcher_.get(); }
QuicVersionManager* version_manager() { return &version_manager_; }
QuicSimpleServerBackend* server_backend() {
return quic_simple_server_backend_;
}
void set_silent_close(bool value) { silent_close_ = value; }
uint8_t expected_server_connection_id_length() {
return expected_server_connection_id_length_;
}
ConnectionIdGeneratorInterface& connection_id_generator() {
return connection_id_generator_;
}
private:
friend class quic::test::QuicServerPeer;
void Initialize();
std::unique_ptr<QuicEventLoop> event_loop_;
std::unique_ptr<SocketFactory> socket_factory_;
std::unique_ptr<QuicDispatcher> dispatcher_;
int port_;
QuicUdpSocketFd fd_;
QuicPacketCount packets_dropped_;
bool overflow_supported_;
bool silent_close_;
QuicConfig config_;
QuicCryptoServerConfig crypto_config_;
QuicCryptoServerConfig::ConfigOptions crypto_config_options_;
QuicVersionManager version_manager_;
std::unique_ptr<QuicPacketReader> packet_reader_;
QuicSimpleServerBackend* quic_simple_server_backend_;
uint8_t expected_server_connection_id_length_;
DeterministicConnectionIdGenerator connection_id_generator_;
};
}
#endif
#include "quiche/quic/tools/quic_server.h"
#include <cstdint>
#include <memory>
#include <utility>
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/io/event_loop_socket_factory.h"
#include "quiche/quic/core/io/quic_default_event_loop.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/core/quic_default_connection_helper.h"
#include "quiche/quic/core/quic_default_packet_writer.h"
#include "quiche/quic/core/quic_dispatcher.h"
#include "quiche/quic/core/quic_packet_reader.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/tools/quic_simple_crypto_server_stream_helper.h"
#include "quiche/quic/tools/quic_simple_dispatcher.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/common/simple_buffer_allocator.h"
namespace quic {
namespace {
const char kSourceAddressTokenSecret[] = "secret";
}
const size_t kNumSessionsToCreatePerSocketEvent = 16;
QuicServer::QuicServer(std::unique_ptr<ProofSource> proof_source,
QuicSimpleServerBackend* quic_simple_server_backend)
: QuicServer(std::move(proof_source), quic_simple_server_backend,
AllSupportedVersions()) {}
QuicServer::QuicServer(std::unique_ptr<ProofSource> proof_source,
QuicSimpleServerBackend* quic_simple_server_backend,
const ParsedQuicVersionVector& supported_versions)
: QuicServer(std::move(proof_source), QuicConfig(),
QuicCryptoServerConfig::ConfigOptions(), supported_versions,
quic_simple_server_backend, kQuicDefaultConnectionIdLength) {}
QuicServer::QuicServer(
std::unique_ptr<ProofSource> proof_source, const QuicConfig& config,
const QuicCryptoServerConfig::ConfigOptions& crypto_config_options,
const ParsedQuicVersionVector& supported_versions,
QuicSimpleServerBackend* quic_simple_server_backend,
uint8_t expected_server_connection_id_length)
: port_(0),
fd_(-1),
packets_dropped_(0),
overflow_supported_(false),
silent_close_(false),
config_(config),
crypto_config_(kSourceAddressTokenSecret, QuicRandom::GetInstance(),
std::move(proof_source), KeyExchangeSource::Default()),
crypto_config_options_(crypto_config_options),
version_manager_(supported_versions),
packet_reader_(new QuicPacketReader()),
quic_simple_server_backend_(quic_simple_server_backend),
expected_server_connection_id_length_(
expected_server_connection_id_length),
connection_id_generator_(expected_server_connection_id_length) {
QUICHE_DCHECK(quic_simple_server_backend_);
Initialize();
}
void QuicServer::Initialize() {
const uint32_t kInitialSessionFlowControlWindow = 1 * 1024 * 1024;
const uint32_t kInitialStreamFlowControlWindow = 64 * 1024;
if (config_.GetInitialStreamFlowControlWindowToSend() ==
kDefaultFlowControlSendWindow) {
config_.SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindow);
}
if (config_.GetInitialSessionFlowControlWindowToSend() ==
kDefaultFlowControlSendWindow) {
config_.SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindow);
}
std::unique_ptr<CryptoHandshakeMessage> scfg(crypto_config_.AddDefaultConfig(
QuicRandom::GetInstance(), QuicDefaultClock::Get(),
crypto_config_options_));
}
QuicServer::~QuicServer() {
if (event_loop_ != nullptr) {
if (!event_loop_->UnregisterSocket(fd_)) {
QUIC_LOG(ERROR) << "Failed to unregister socket: " << fd_;
}
}
(void)socket_api::Close(fd_);
fd_ = kInvalidSocketFd;
quic_simple_server_backend_->SetSocketFactory(nullptr);
}
bool QuicServer::CreateUDPSocketAndListen(const QuicSocketAddress& address) {
event_loop_ = CreateEventLoop();
socket_factory_ = std::make_unique<EventLoopSocketFactory>(
event_loop_.get(), quiche::SimpleBufferAllocator::Get());
quic_simple_server_backend_->SetSocketFactory(socket_factory_.get());
QuicUdpSocketApi socket_api;
fd_ = socket_api.Create(address.host().AddressFamilyToInt(),
kDefaultSocketReceiveBuffer,
kDefaultSocketReceiveBuffer);
if (fd_ == kQuicInvalidSocketFd) {
QUIC_LOG(ERROR) << "CreateSocket() failed: " << strerror(errno);
return false;
}
overflow_supported_ = socket_api.EnableDroppedPacketCount(fd_);
socket_api.EnableReceiveTimestamp(fd_);
bool success = socket_api.Bind(fd_, address);
if (!success) {
QUIC_LOG(ERROR) << "Bind failed: " << strerror(errno);
return false;
}
QUIC_LOG(INFO) << "Listening on " << address.ToString();
port_ = address.port();
if (port_ == 0) {
QuicSocketAddress self_address;
if (self_address.FromSocket(fd_) != 0) {
QUIC_LOG(ERROR) << "Unable to get self address. Error: "
<< strerror(errno);
}
port_ = self_address.port();
}
bool register_result = event_loop_->RegisterSocket(
fd_, kSocketEventReadable | kSocketEventWritable, this);
if (!register_result) {
return false;
}
dispatcher_.reset(CreateQuicDispatcher());
dispatcher_->InitializeWithWriter(CreateWriter(fd_));
return true;
}
QuicPacketWriter* QuicServer::CreateWriter(int fd) {
return new QuicDefaultPacketWriter(fd);
}
QuicDispatcher* QuicServer::CreateQuicDispatcher() {
return new QuicSimpleDispatcher(
&config_, &crypto_config_, &version_manager_,
std::make_unique<QuicDefaultConnectionHelper>(),
std::unique_ptr<QuicCryptoServerStreamBase::Helper>(
new QuicSimpleCryptoServerStreamHelper()),
event_loop_->CreateAlarmFactory(), quic_simple_server_backend_,
expected_server_connection_id_length_, connection_id_generator_);
}
std::unique_ptr<QuicEventLoop> QuicServer::CreateEventLoop() {
return GetDefaultEventLoop()->Create(QuicDefaultClock::Get());
}
void QuicServer::HandleEventsForever() {
while (true) {
WaitForEvents();
}
}
void QuicServer::WaitForEvents() {
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromMilliseconds(50));
}
void QuicServer::Shutdown() {
if (!silent_close_) {
dispatcher_->Shutdown();
}
dispatcher_.reset();
event_loop_.reset();
}
void QuicServer::OnSocketEvent(QuicEventLoop* ,
QuicUdpSocketFd fd, QuicSocketEventMask events) {
QUICHE_DCHECK_EQ(fd, fd_);
if (events & kSocketEventReadable) {
QUIC_DVLOG(1) << "EPOLLIN";
dispatcher_->ProcessBufferedChlos(kNumSessionsToCreatePerSocketEvent);
bool more_to_read = true;
while (more_to_read) {
more_to_read = packet_reader_->ReadAndDispatchPackets(
fd_, port_, *QuicDefaultClock::Get(), dispatcher_.get(),
overflow_supported_ ? &packets_dropped_ : nullptr);
}
if (dispatcher_->HasChlosBuffered()) {
bool success =
event_loop_->ArtificiallyNotifyEvent(fd_, kSocketEventReadable);
QUICHE_DCHECK(success);
}
if (!event_loop_->SupportsEdgeTriggered()) {
bool success = event_loop_->RearmSocket(fd_, kSocketEventReadable);
QUICHE_DCHECK(success);
}
}
if (events & kSocketEventWritable) {
dispatcher_->OnCanWrite();
if (!event_loop_->SupportsEdgeTriggered() &&
dispatcher_->HasPendingWrites()) {
bool success = event_loop_->RearmSocket(fd_, kSocketEventWritable);
QUICHE_DCHECK(success);
}
}
}
} | #include "quiche/quic/tools/quic_server.h"
#include <memory>
#include <string>
#include <utility>
#include "absl/base/macros.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/deterministic_connection_id_generator.h"
#include "quiche/quic/core/io/quic_default_event_loop.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/core/quic_default_connection_helper.h"
#include "quiche/quic/core/quic_default_packet_writer.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/mock_quic_dispatcher.h"
#include "quiche/quic/test_tools/quic_server_peer.h"
#include "quiche/quic/tools/quic_memory_cache_backend.h"
#include "quiche/quic/tools/quic_simple_crypto_server_stream_helper.h"
namespace quic {
namespace test {
using ::testing::_;
namespace {
class MockQuicSimpleDispatcher : public QuicSimpleDispatcher {
public:
MockQuicSimpleDispatcher(
const QuicConfig* config, const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager,
std::unique_ptr<QuicConnectionHelperInterface> helper,
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
std::unique_ptr<QuicAlarmFactory> alarm_factory,
QuicSimpleServerBackend* quic_simple_server_backend,
ConnectionIdGeneratorInterface& generator)
: QuicSimpleDispatcher(config, crypto_config, version_manager,
std::move(helper), std::move(session_helper),
std::move(alarm_factory),
quic_simple_server_backend,
kQuicDefaultConnectionIdLength, generator) {}
~MockQuicSimpleDispatcher() override = default;
MOCK_METHOD(void, OnCanWrite, (), (override));
MOCK_METHOD(bool, HasPendingWrites, (), (const, override));
MOCK_METHOD(bool, HasChlosBuffered, (), (const, override));
MOCK_METHOD(void, ProcessBufferedChlos, (size_t), (override));
};
class TestQuicServer : public QuicServer {
public:
explicit TestQuicServer(QuicEventLoopFactory* event_loop_factory,
QuicMemoryCacheBackend* quic_simple_server_backend)
: QuicServer(crypto_test_utils::ProofSourceForTesting(),
quic_simple_server_backend),
quic_simple_server_backend_(quic_simple_server_backend),
event_loop_factory_(event_loop_factory) {}
~TestQuicServer() override = default;
MockQuicSimpleDispatcher* mock_dispatcher() { return mock_dispatcher_; }
protected:
QuicDispatcher* CreateQuicDispatcher() override {
mock_dispatcher_ = new MockQuicSimpleDispatcher(
&config(), &crypto_config(), version_manager(),
std::make_unique<QuicDefaultConnectionHelper>(),
std::unique_ptr<QuicCryptoServerStreamBase::Helper>(
new QuicSimpleCryptoServerStreamHelper()),
event_loop()->CreateAlarmFactory(), quic_simple_server_backend_,
connection_id_generator());
return mock_dispatcher_;
}
std::unique_ptr<QuicEventLoop> CreateEventLoop() override {
return event_loop_factory_->Create(QuicDefaultClock::Get());
}
MockQuicSimpleDispatcher* mock_dispatcher_ = nullptr;
QuicMemoryCacheBackend* quic_simple_server_backend_;
QuicEventLoopFactory* event_loop_factory_;
};
class QuicServerEpollInTest : public QuicTestWithParam<QuicEventLoopFactory*> {
public:
QuicServerEpollInTest()
: server_address_(TestLoopback(), 0),
server_(GetParam(), &quic_simple_server_backend_) {}
void StartListening() {
server_.CreateUDPSocketAndListen(server_address_);
server_address_ = QuicSocketAddress(server_address_.host(), server_.port());
ASSERT_TRUE(QuicServerPeer::SetSmallSocket(&server_));
if (!server_.overflow_supported()) {
QUIC_LOG(WARNING) << "Overflow not supported. Not testing.";
return;
}
}
protected:
QuicSocketAddress server_address_;
QuicMemoryCacheBackend quic_simple_server_backend_;
TestQuicServer server_;
};
std::string GetTestParamName(
::testing::TestParamInfo<QuicEventLoopFactory*> info) {
return EscapeTestParamName(info.param->GetName());
}
INSTANTIATE_TEST_SUITE_P(QuicServerEpollInTests, QuicServerEpollInTest,
::testing::ValuesIn(GetAllSupportedEventLoops()),
GetTestParamName);
TEST_P(QuicServerEpollInTest, ProcessBufferedCHLOsOnEpollin) {
StartListening();
bool more_chlos = true;
MockQuicSimpleDispatcher* dispatcher_ = server_.mock_dispatcher();
QUICHE_DCHECK(dispatcher_ != nullptr);
EXPECT_CALL(*dispatcher_, OnCanWrite()).Times(testing::AnyNumber());
EXPECT_CALL(*dispatcher_, ProcessBufferedChlos(_)).Times(2);
EXPECT_CALL(*dispatcher_, HasPendingWrites()).Times(testing::AnyNumber());
EXPECT_CALL(*dispatcher_, HasChlosBuffered())
.WillOnce(testing::Return(true))
.WillOnce(
DoAll(testing::Assign(&more_chlos, false), testing::Return(false)));
QuicUdpSocketApi socket_api;
SocketFd fd =
socket_api.Create(server_address_.host().AddressFamilyToInt(),
kDefaultSocketReceiveBuffer,
kDefaultSocketReceiveBuffer);
ASSERT_NE(fd, kQuicInvalidSocketFd);
char buf[1024];
memset(buf, 0, ABSL_ARRAYSIZE(buf));
QuicUdpPacketInfo packet_info;
packet_info.SetPeerAddress(server_address_);
WriteResult result =
socket_api.WritePacket(fd, buf, sizeof(buf), packet_info);
if (result.status != WRITE_STATUS_OK) {
QUIC_LOG(ERROR) << "Write error for UDP packet: " << result.error_code;
}
while (more_chlos) {
server_.WaitForEvents();
}
}
class QuicServerDispatchPacketTest : public QuicTest {
public:
QuicServerDispatchPacketTest()
: crypto_config_("blah", QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default()),
version_manager_(AllSupportedVersions()),
event_loop_(GetDefaultEventLoop()->Create(QuicDefaultClock::Get())),
connection_id_generator_(kQuicDefaultConnectionIdLength),
dispatcher_(&config_, &crypto_config_, &version_manager_,
std::make_unique<QuicDefaultConnectionHelper>(),
std::make_unique<QuicSimpleCryptoServerStreamHelper>(),
event_loop_->CreateAlarmFactory(),
&quic_simple_server_backend_, connection_id_generator_) {
dispatcher_.InitializeWithWriter(new QuicDefaultPacketWriter(1234));
}
void DispatchPacket(const QuicReceivedPacket& packet) {
QuicSocketAddress client_addr, server_addr;
dispatcher_.ProcessPacket(server_addr, client_addr, packet);
}
protected:
QuicConfig config_;
QuicCryptoServerConfig crypto_config_;
QuicVersionManager version_manager_;
std::unique_ptr<QuicEventLoop> event_loop_;
QuicMemoryCacheBackend quic_simple_server_backend_;
DeterministicConnectionIdGenerator connection_id_generator_;
MockQuicDispatcher dispatcher_;
};
TEST_F(QuicServerDispatchPacketTest, DispatchPacket) {
unsigned char valid_packet[] = {
0x3C,
0x10, 0x32, 0x54, 0x76,
0x98, 0xBA, 0xDC, 0xFE,
0xBC, 0x9A, 0x78, 0x56,
0x34, 0x12,
0x00
};
QuicReceivedPacket encrypted_valid_packet(
reinterpret_cast<char*>(valid_packet), ABSL_ARRAYSIZE(valid_packet),
QuicTime::Zero(), false);
EXPECT_CALL(dispatcher_, ProcessPacket(_, _, _)).Times(1);
DispatchPacket(encrypted_valid_packet);
}
}
}
} |
208 | cpp | google/quiche | quic_url | quiche/quic/tools/quic_url.cc | quiche/quic/tools/quic_url_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_URL_H_
#define QUICHE_QUIC_TOOLS_QUIC_URL_H_
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_googleurl.h"
namespace quic {
class QuicUrl {
public:
QuicUrl() = default;
explicit QuicUrl(absl::string_view url);
QuicUrl(absl::string_view url, absl::string_view default_scheme);
bool IsValid() const;
std::string ToString() const;
std::string HostPort() const;
std::string PathParamsQuery() const;
std::string scheme() const;
std::string host() const;
std::string path() const;
uint16_t port() const;
private:
GURL url_;
};
}
#endif
#include "quiche/quic/tools/quic_url.h"
#include <string>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
namespace quic {
static constexpr size_t kMaxHostNameLength = 256;
QuicUrl::QuicUrl(absl::string_view url) : url_(static_cast<std::string>(url)) {}
QuicUrl::QuicUrl(absl::string_view url, absl::string_view default_scheme)
: QuicUrl(url) {
if (url_.has_scheme()) {
return;
}
url_ = GURL(absl::StrCat(default_scheme, ":
}
std::string QuicUrl::ToString() const {
if (IsValid()) {
return url_.spec();
}
return "";
}
bool QuicUrl::IsValid() const {
if (!url_.is_valid() || !url_.has_scheme()) {
return false;
}
if (url_.has_host() && url_.host().length() > kMaxHostNameLength) {
return false;
}
return true;
}
std::string QuicUrl::HostPort() const {
if (!IsValid() || !url_.has_host()) {
return "";
}
std::string host = url_.host();
int port = url_.IntPort();
if (port == url::PORT_UNSPECIFIED) {
return host;
}
return absl::StrCat(host, ":", port);
}
std::string QuicUrl::PathParamsQuery() const {
if (!IsValid() || !url_.has_path()) {
return "/";
}
return url_.PathForRequest();
}
std::string QuicUrl::scheme() const {
if (!IsValid()) {
return "";
}
return url_.scheme();
}
std::string QuicUrl::host() const {
if (!IsValid()) {
return "";
}
return url_.HostNoBrackets();
}
std::string QuicUrl::path() const {
if (!IsValid()) {
return "";
}
return url_.path();
}
uint16_t QuicUrl::port() const {
if (!IsValid()) {
return 0;
}
int port = url_.EffectiveIntPort();
if (port == url::PORT_UNSPECIFIED) {
return 0;
}
return port;
}
} | #include "quiche/quic/tools/quic_url.h"
#include <string>
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
class QuicUrlTest : public QuicTest {};
TEST_F(QuicUrlTest, Basic) {
std::string url_str = "www.example.com";
QuicUrl url(url_str);
EXPECT_FALSE(url.IsValid());
url_str = "http:
url = QuicUrl(url_str);
EXPECT_TRUE(url.IsValid());
EXPECT_EQ("http:
EXPECT_EQ("http", url.scheme());
EXPECT_EQ("www.example.com", url.HostPort());
EXPECT_EQ("/", url.PathParamsQuery());
EXPECT_EQ(80u, url.port());
url_str = "https:
url = QuicUrl(url_str);
EXPECT_TRUE(url.IsValid());
EXPECT_EQ("https:
url.ToString());
EXPECT_EQ("https", url.scheme());
EXPECT_EQ("www.example.com:12345", url.HostPort());
EXPECT_EQ("/path/to/resource?a=1&campaign=2", url.PathParamsQuery());
EXPECT_EQ(12345u, url.port());
url_str = "ftp:
url = QuicUrl(url_str);
EXPECT_TRUE(url.IsValid());
EXPECT_EQ("ftp:
EXPECT_EQ("ftp", url.scheme());
EXPECT_EQ("www.example.com", url.HostPort());
EXPECT_EQ("/", url.PathParamsQuery());
EXPECT_EQ(21u, url.port());
}
TEST_F(QuicUrlTest, DefaultScheme) {
std::string url_str = "www.example.com";
QuicUrl url(url_str, "http");
EXPECT_EQ("http:
EXPECT_EQ("http", url.scheme());
url_str = "http:
url = QuicUrl(url_str, "https");
EXPECT_EQ("http:
EXPECT_EQ("http", url.scheme());
url_str = "www.example.com";
url = QuicUrl(url_str, "ftp");
EXPECT_EQ("ftp:
EXPECT_EQ("ftp", url.scheme());
}
TEST_F(QuicUrlTest, IsValid) {
std::string url_str =
"ftp:
EXPECT_TRUE(QuicUrl(url_str).IsValid());
url_str = "https:
EXPECT_FALSE(QuicUrl(url_str).IsValid());
url_str = "%http:
EXPECT_FALSE(QuicUrl(url_str).IsValid());
std::string host(1024, 'a');
url_str = "https:
EXPECT_FALSE(QuicUrl(url_str).IsValid());
url_str = "https:
EXPECT_FALSE(QuicUrl(url_str).IsValid());
}
TEST_F(QuicUrlTest, HostPort) {
std::string url_str = "http:
QuicUrl url(url_str);
EXPECT_EQ("www.example.com", url.HostPort());
EXPECT_EQ("www.example.com", url.host());
EXPECT_EQ(80u, url.port());
url_str = "http:
url = QuicUrl(url_str);
EXPECT_EQ("www.example.com", url.HostPort());
EXPECT_EQ("www.example.com", url.host());
EXPECT_EQ(80u, url.port());
url_str = "http:
url = QuicUrl(url_str);
EXPECT_EQ("www.example.com:81", url.HostPort());
EXPECT_EQ("www.example.com", url.host());
EXPECT_EQ(81u, url.port());
url_str = "https:
url = QuicUrl(url_str);
EXPECT_EQ("192.168.1.1", url.HostPort());
EXPECT_EQ("192.168.1.1", url.host());
EXPECT_EQ(443u, url.port());
url_str = "http:
url = QuicUrl(url_str);
EXPECT_EQ("[2001::1]", url.HostPort());
EXPECT_EQ("2001::1", url.host());
EXPECT_EQ(80u, url.port());
url_str = "http:
url = QuicUrl(url_str);
EXPECT_EQ("[2001::1]:81", url.HostPort());
EXPECT_EQ("2001::1", url.host());
EXPECT_EQ(81u, url.port());
}
TEST_F(QuicUrlTest, PathParamsQuery) {
std::string url_str =
"https:
QuicUrl url(url_str);
EXPECT_EQ("/path/to/resource?a=1&campaign=2", url.PathParamsQuery());
EXPECT_EQ("/path/to/resource", url.path());
url_str = "https:
url = QuicUrl(url_str);
EXPECT_EQ("/?", url.PathParamsQuery());
EXPECT_EQ("/", url.path());
url_str = "https:
url = QuicUrl(url_str);
EXPECT_EQ("/", url.PathParamsQuery());
EXPECT_EQ("/", url.path());
}
}
}
} |
209 | cpp | google/quiche | quic_tcp_like_trace_converter | quiche/quic/tools/quic_tcp_like_trace_converter.cc | quiche/quic/tools/quic_tcp_like_trace_converter_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_TCP_LIKE_TRACE_CONVERTER_H_
#define QUICHE_QUIC_TOOLS_QUIC_TCP_LIKE_TRACE_CONVERTER_H_
#include <vector>
#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_interval.h"
#include "quiche/quic/core/quic_interval_set.h"
#include "quiche/quic/core/quic_types.h"
namespace quic {
class QuicTcpLikeTraceConverter {
public:
struct StreamOffsetSegment {
StreamOffsetSegment();
StreamOffsetSegment(QuicStreamOffset stream_offset,
uint64_t connection_offset, QuicByteCount data_length);
QuicInterval<QuicStreamOffset> stream_data;
uint64_t connection_offset;
};
QuicTcpLikeTraceConverter();
QuicTcpLikeTraceConverter(const QuicTcpLikeTraceConverter& other) = delete;
QuicTcpLikeTraceConverter(QuicTcpLikeTraceConverter&& other) = delete;
~QuicTcpLikeTraceConverter() {}
QuicIntervalSet<uint64_t> OnCryptoFrameSent(EncryptionLevel level,
QuicStreamOffset offset,
QuicByteCount data_length);
QuicIntervalSet<uint64_t> OnStreamFrameSent(QuicStreamId stream_id,
QuicStreamOffset offset,
QuicByteCount data_length,
bool fin);
QuicInterval<uint64_t> OnControlFrameSent(QuicControlFrameId control_frame_id,
QuicByteCount control_frame_length);
private:
struct StreamInfo {
StreamInfo();
std::vector<StreamOffsetSegment> segments;
bool fin;
};
QuicIntervalSet<uint64_t> OnFrameSent(QuicStreamOffset offset,
QuicByteCount data_length, bool fin,
StreamInfo* info);
StreamInfo crypto_frames_info_[NUM_ENCRYPTION_LEVELS];
absl::flat_hash_map<QuicStreamId, StreamInfo> streams_info_;
absl::flat_hash_map<QuicControlFrameId, QuicInterval<uint64_t>>
control_frames_info_;
QuicControlFrameId largest_observed_control_frame_id_;
uint64_t connection_offset_;
};
}
#endif
#include "quiche/quic/tools/quic_tcp_like_trace_converter.h"
#include <algorithm>
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
namespace quic {
QuicTcpLikeTraceConverter::QuicTcpLikeTraceConverter()
: largest_observed_control_frame_id_(kInvalidControlFrameId),
connection_offset_(0) {}
QuicTcpLikeTraceConverter::StreamOffsetSegment::StreamOffsetSegment()
: connection_offset(0) {}
QuicTcpLikeTraceConverter::StreamOffsetSegment::StreamOffsetSegment(
QuicStreamOffset stream_offset, uint64_t connection_offset,
QuicByteCount data_length)
: stream_data(stream_offset, stream_offset + data_length),
connection_offset(connection_offset) {}
QuicTcpLikeTraceConverter::StreamInfo::StreamInfo() : fin(false) {}
QuicIntervalSet<uint64_t> QuicTcpLikeTraceConverter::OnCryptoFrameSent(
EncryptionLevel level, QuicStreamOffset offset, QuicByteCount data_length) {
if (level >= NUM_ENCRYPTION_LEVELS) {
QUIC_BUG(quic_bug_10907_1) << "Invalid encryption level";
return {};
}
return OnFrameSent(offset, data_length, false,
&crypto_frames_info_[level]);
}
QuicIntervalSet<uint64_t> QuicTcpLikeTraceConverter::OnStreamFrameSent(
QuicStreamId stream_id, QuicStreamOffset offset, QuicByteCount data_length,
bool fin) {
return OnFrameSent(
offset, data_length, fin,
&streams_info_.emplace(stream_id, StreamInfo()).first->second);
}
QuicIntervalSet<uint64_t> QuicTcpLikeTraceConverter::OnFrameSent(
QuicStreamOffset offset, QuicByteCount data_length, bool fin,
StreamInfo* info) {
QuicIntervalSet<uint64_t> connection_offsets;
if (fin) {
++data_length;
}
for (const auto& segment : info->segments) {
QuicInterval<QuicStreamOffset> retransmission(offset, offset + data_length);
retransmission.IntersectWith(segment.stream_data);
if (retransmission.Empty()) {
continue;
}
const uint64_t connection_offset = segment.connection_offset +
retransmission.min() -
segment.stream_data.min();
connection_offsets.Add(connection_offset,
connection_offset + retransmission.Length());
}
if (info->fin) {
return connection_offsets;
}
QuicStreamOffset least_unsent_offset =
info->segments.empty() ? 0 : info->segments.back().stream_data.max();
if (least_unsent_offset >= offset + data_length) {
return connection_offsets;
}
QuicStreamOffset new_data_offset = std::max(least_unsent_offset, offset);
QuicByteCount new_data_length = offset + data_length - new_data_offset;
connection_offsets.Add(connection_offset_,
connection_offset_ + new_data_length);
if (!info->segments.empty() && new_data_offset == least_unsent_offset &&
connection_offset_ == info->segments.back().connection_offset +
info->segments.back().stream_data.Length()) {
info->segments.back().stream_data.SetMax(new_data_offset + new_data_length);
} else {
info->segments.emplace_back(new_data_offset, connection_offset_,
new_data_length);
}
info->fin = fin;
connection_offset_ += new_data_length;
return connection_offsets;
}
QuicInterval<uint64_t> QuicTcpLikeTraceConverter::OnControlFrameSent(
QuicControlFrameId control_frame_id, QuicByteCount control_frame_length) {
if (control_frame_id > largest_observed_control_frame_id_) {
QuicInterval<uint64_t> connection_offset = QuicInterval<uint64_t>(
connection_offset_, connection_offset_ + control_frame_length);
connection_offset_ += control_frame_length;
control_frames_info_[control_frame_id] = connection_offset;
largest_observed_control_frame_id_ = control_frame_id;
return connection_offset;
}
const auto iter = control_frames_info_.find(control_frame_id);
if (iter == control_frames_info_.end()) {
return {};
}
return iter->second;
}
} | #include "quiche/quic/tools/quic_tcp_like_trace_converter.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
TEST(QuicTcpLikeTraceConverterTest, BasicTest) {
QuicTcpLikeTraceConverter converter;
EXPECT_EQ(QuicIntervalSet<uint64_t>(0, 100),
converter.OnStreamFrameSent(1, 0, 100, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(100, 200),
converter.OnStreamFrameSent(3, 0, 100, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(200, 300),
converter.OnStreamFrameSent(3, 100, 100, false));
EXPECT_EQ(QuicInterval<uint64_t>(300, 450),
converter.OnControlFrameSent(2, 150));
EXPECT_EQ(QuicIntervalSet<uint64_t>(450, 550),
converter.OnStreamFrameSent(1, 100, 100, false));
EXPECT_EQ(QuicInterval<uint64_t>(550, 650),
converter.OnControlFrameSent(3, 100));
EXPECT_EQ(QuicIntervalSet<uint64_t>(650, 850),
converter.OnStreamFrameSent(3, 200, 200, false));
EXPECT_EQ(QuicInterval<uint64_t>(850, 1050),
converter.OnControlFrameSent(4, 200));
EXPECT_EQ(QuicIntervalSet<uint64_t>(1050, 1100),
converter.OnStreamFrameSent(1, 200, 50, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(1100, 1150),
converter.OnStreamFrameSent(1, 250, 50, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(1150, 1350),
converter.OnStreamFrameSent(3, 400, 200, false));
QuicIntervalSet<uint64_t> expected;
expected.Add(50, 100);
expected.Add(450, 550);
expected.Add(1050, 1150);
expected.Add(1350, 1401);
EXPECT_EQ(expected, converter.OnStreamFrameSent(1, 50, 300, true));
expected.Clear();
expected.Add(250, 300);
expected.Add(650, 850);
expected.Add(1150, 1250);
EXPECT_EQ(expected, converter.OnStreamFrameSent(3, 150, 350, false));
expected.Clear();
expected.Add(750, 850);
expected.Add(1150, 1350);
expected.Add(1401, 1602);
EXPECT_EQ(expected, converter.OnStreamFrameSent(3, 300, 500, true));
expected.Clear();
expected.Add(1601, 1602);
EXPECT_EQ(expected, converter.OnStreamFrameSent(3, 800, 0, true));
QuicInterval<uint64_t> expected2;
EXPECT_EQ(expected2, converter.OnControlFrameSent(1, 100));
expected2 = {300, 450};
EXPECT_EQ(expected2, converter.OnControlFrameSent(2, 200));
expected2 = {1602, 1702};
EXPECT_EQ(expected2, converter.OnControlFrameSent(10, 100));
}
TEST(QuicTcpLikeTraceConverterTest, FuzzerTest) {
QuicTcpLikeTraceConverter converter;
EXPECT_EQ(QuicIntervalSet<uint64_t>(0, 100),
converter.OnStreamFrameSent(1, 100, 100, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(100, 300),
converter.OnStreamFrameSent(3, 200, 200, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(300, 400),
converter.OnStreamFrameSent(1, 300, 100, false));
QuicIntervalSet<uint64_t> expected;
expected.Add(0, 100);
expected.Add(300, 501);
EXPECT_EQ(expected, converter.OnStreamFrameSent(1, 0, 500, true));
EXPECT_EQ(expected, converter.OnStreamFrameSent(1, 50, 600, false));
}
TEST(QuicTcpLikeTraceConverterTest, OnCryptoFrameSent) {
QuicTcpLikeTraceConverter converter;
EXPECT_EQ(QuicIntervalSet<uint64_t>(0, 100),
converter.OnCryptoFrameSent(ENCRYPTION_INITIAL, 0, 100));
EXPECT_EQ(QuicIntervalSet<uint64_t>(100, 200),
converter.OnStreamFrameSent(1, 0, 100, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(200, 300),
converter.OnStreamFrameSent(1, 100, 100, false));
EXPECT_EQ(QuicIntervalSet<uint64_t>(300, 400),
converter.OnCryptoFrameSent(ENCRYPTION_HANDSHAKE, 0, 100));
EXPECT_EQ(QuicIntervalSet<uint64_t>(400, 500),
converter.OnCryptoFrameSent(ENCRYPTION_HANDSHAKE, 100, 100));
EXPECT_EQ(QuicIntervalSet<uint64_t>(0, 100),
converter.OnCryptoFrameSent(ENCRYPTION_INITIAL, 0, 100));
EXPECT_EQ(QuicIntervalSet<uint64_t>(400, 500),
converter.OnCryptoFrameSent(ENCRYPTION_HANDSHAKE, 100, 100));
}
}
}
} |
210 | cpp | google/quiche | simple_ticket_crypter | quiche/quic/tools/simple_ticket_crypter.cc | quiche/quic/tools/simple_ticket_crypter_test.cc | #ifndef QUICHE_QUIC_TOOLS_SIMPLE_TICKET_CRYPTER_H_
#define QUICHE_QUIC_TOOLS_SIMPLE_TICKET_CRYPTER_H_
#include "openssl/aead.h"
#include "quiche/quic/core/crypto/proof_source.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_time.h"
namespace quic {
class QUIC_NO_EXPORT SimpleTicketCrypter
: public quic::ProofSource::TicketCrypter {
public:
explicit SimpleTicketCrypter(QuicClock* clock);
~SimpleTicketCrypter() override;
size_t MaxOverhead() override;
std::vector<uint8_t> Encrypt(absl::string_view in,
absl::string_view encryption_key) override;
void Decrypt(
absl::string_view in,
std::shared_ptr<quic::ProofSource::DecryptCallback> callback) override;
private:
std::vector<uint8_t> Decrypt(absl::string_view in);
void MaybeRotateKeys();
static constexpr size_t kKeySize = 16;
struct Key {
uint8_t key[kKeySize];
bssl::ScopedEVP_AEAD_CTX aead_ctx;
QuicTime expiration = QuicTime::Zero();
};
std::unique_ptr<Key> NewKey();
std::unique_ptr<Key> current_key_;
std::unique_ptr<Key> previous_key_;
uint8_t key_epoch_ = 0;
QuicClock* clock_;
};
}
#endif
#include "quiche/quic/tools/simple_ticket_crypter.h"
#include <memory>
#include <utility>
#include <vector>
#include "openssl/aead.h"
#include "openssl/rand.h"
namespace quic {
namespace {
constexpr QuicTime::Delta kTicketKeyLifetime =
QuicTime::Delta::FromSeconds(60 * 60 * 24 * 7);
constexpr size_t kEpochSize = 1;
constexpr size_t kIVSize = 16;
constexpr size_t kAuthTagSize = 16;
constexpr size_t kIVOffset = kEpochSize;
constexpr size_t kMessageOffset = kIVOffset + kIVSize;
}
SimpleTicketCrypter::SimpleTicketCrypter(QuicClock* clock) : clock_(clock) {
RAND_bytes(&key_epoch_, 1);
current_key_ = NewKey();
}
SimpleTicketCrypter::~SimpleTicketCrypter() = default;
size_t SimpleTicketCrypter::MaxOverhead() {
return kEpochSize + kIVSize + kAuthTagSize;
}
std::vector<uint8_t> SimpleTicketCrypter::Encrypt(
absl::string_view in, absl::string_view encryption_key) {
QUICHE_DCHECK(encryption_key.empty());
MaybeRotateKeys();
std::vector<uint8_t> out(in.size() + MaxOverhead());
out[0] = key_epoch_;
RAND_bytes(out.data() + kIVOffset, kIVSize);
size_t out_len;
const EVP_AEAD_CTX* ctx = current_key_->aead_ctx.get();
if (!EVP_AEAD_CTX_seal(ctx, out.data() + kMessageOffset, &out_len,
out.size() - kMessageOffset, out.data() + kIVOffset,
kIVSize, reinterpret_cast<const uint8_t*>(in.data()),
in.size(), nullptr, 0)) {
return std::vector<uint8_t>();
}
out.resize(out_len + kMessageOffset);
return out;
}
std::vector<uint8_t> SimpleTicketCrypter::Decrypt(absl::string_view in) {
MaybeRotateKeys();
if (in.size() < kMessageOffset) {
return std::vector<uint8_t>();
}
const uint8_t* input = reinterpret_cast<const uint8_t*>(in.data());
std::vector<uint8_t> out(in.size() - kMessageOffset);
size_t out_len;
const EVP_AEAD_CTX* ctx = current_key_->aead_ctx.get();
if (input[0] != key_epoch_) {
if (input[0] == static_cast<uint8_t>(key_epoch_ - 1) && previous_key_) {
ctx = previous_key_->aead_ctx.get();
} else {
return std::vector<uint8_t>();
}
}
if (!EVP_AEAD_CTX_open(ctx, out.data(), &out_len, out.size(),
input + kIVOffset, kIVSize, input + kMessageOffset,
in.size() - kMessageOffset, nullptr, 0)) {
return std::vector<uint8_t>();
}
out.resize(out_len);
return out;
}
void SimpleTicketCrypter::Decrypt(
absl::string_view in,
std::shared_ptr<quic::ProofSource::DecryptCallback> callback) {
callback->Run(Decrypt(in));
}
void SimpleTicketCrypter::MaybeRotateKeys() {
QuicTime now = clock_->ApproximateNow();
if (current_key_->expiration < now) {
previous_key_ = std::move(current_key_);
current_key_ = NewKey();
key_epoch_++;
}
}
std::unique_ptr<SimpleTicketCrypter::Key> SimpleTicketCrypter::NewKey() {
auto key = std::make_unique<SimpleTicketCrypter::Key>();
RAND_bytes(key->key, kKeySize);
EVP_AEAD_CTX_init(key->aead_ctx.get(), EVP_aead_aes_128_gcm(), key->key,
kKeySize, EVP_AEAD_DEFAULT_TAG_LENGTH, nullptr);
key->expiration = clock_->ApproximateNow() + kTicketKeyLifetime;
return key;
}
} | #include "quiche/quic/tools/simple_ticket_crypter.h"
#include <memory>
#include <vector>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
namespace quic {
namespace test {
namespace {
constexpr QuicTime::Delta kOneDay = QuicTime::Delta::FromSeconds(60 * 60 * 24);
}
class DecryptCallback : public quic::ProofSource::DecryptCallback {
public:
explicit DecryptCallback(std::vector<uint8_t>* out) : out_(out) {}
void Run(std::vector<uint8_t> plaintext) override { *out_ = plaintext; }
private:
std::vector<uint8_t>* out_;
};
absl::string_view StringPiece(const std::vector<uint8_t>& in) {
return absl::string_view(reinterpret_cast<const char*>(in.data()), in.size());
}
class SimpleTicketCrypterTest : public QuicTest {
public:
SimpleTicketCrypterTest() : ticket_crypter_(&mock_clock_) {}
protected:
MockClock mock_clock_;
SimpleTicketCrypter ticket_crypter_;
};
TEST_F(SimpleTicketCrypterTest, EncryptDecrypt) {
std::vector<uint8_t> plaintext = {1, 2, 3, 4, 5};
std::vector<uint8_t> ciphertext =
ticket_crypter_.Encrypt(StringPiece(plaintext), {});
EXPECT_NE(plaintext, ciphertext);
std::vector<uint8_t> out_plaintext;
ticket_crypter_.Decrypt(StringPiece(ciphertext),
std::make_unique<DecryptCallback>(&out_plaintext));
EXPECT_EQ(out_plaintext, plaintext);
}
TEST_F(SimpleTicketCrypterTest, CiphertextsDiffer) {
std::vector<uint8_t> plaintext = {1, 2, 3, 4, 5};
std::vector<uint8_t> ciphertext1 =
ticket_crypter_.Encrypt(StringPiece(plaintext), {});
std::vector<uint8_t> ciphertext2 =
ticket_crypter_.Encrypt(StringPiece(plaintext), {});
EXPECT_NE(ciphertext1, ciphertext2);
}
TEST_F(SimpleTicketCrypterTest, DecryptionFailureWithModifiedCiphertext) {
std::vector<uint8_t> plaintext = {1, 2, 3, 4, 5};
std::vector<uint8_t> ciphertext =
ticket_crypter_.Encrypt(StringPiece(plaintext), {});
EXPECT_NE(plaintext, ciphertext);
for (size_t i = 0; i < ciphertext.size(); i++) {
SCOPED_TRACE(i);
std::vector<uint8_t> munged_ciphertext = ciphertext;
munged_ciphertext[i] ^= 1;
std::vector<uint8_t> out_plaintext;
ticket_crypter_.Decrypt(StringPiece(munged_ciphertext),
std::make_unique<DecryptCallback>(&out_plaintext));
EXPECT_TRUE(out_plaintext.empty());
}
}
TEST_F(SimpleTicketCrypterTest, DecryptionFailureWithEmptyCiphertext) {
std::vector<uint8_t> out_plaintext;
ticket_crypter_.Decrypt(absl::string_view(),
std::make_unique<DecryptCallback>(&out_plaintext));
EXPECT_TRUE(out_plaintext.empty());
}
TEST_F(SimpleTicketCrypterTest, KeyRotation) {
std::vector<uint8_t> plaintext = {1, 2, 3};
std::vector<uint8_t> ciphertext =
ticket_crypter_.Encrypt(StringPiece(plaintext), {});
EXPECT_FALSE(ciphertext.empty());
mock_clock_.AdvanceTime(kOneDay * 8);
std::vector<uint8_t> out_plaintext;
ticket_crypter_.Decrypt(StringPiece(ciphertext),
std::make_unique<DecryptCallback>(&out_plaintext));
EXPECT_EQ(out_plaintext, plaintext);
mock_clock_.AdvanceTime(kOneDay * 8);
ticket_crypter_.Decrypt(StringPiece(ciphertext),
std::make_unique<DecryptCallback>(&out_plaintext));
EXPECT_TRUE(out_plaintext.empty());
}
}
} |
211 | cpp | google/quiche | quic_memory_cache_backend | quiche/quic/tools/quic_memory_cache_backend.cc | quiche/quic/tools/quic_memory_cache_backend_test.cc | #ifndef QUICHE_QUIC_TOOLS_QUIC_MEMORY_CACHE_BACKEND_H_
#define QUICHE_QUIC_TOOLS_QUIC_MEMORY_CACHE_BACKEND_H_
#include <list>
#include <map>
#include <memory>
#include <vector>
#include "absl/container/flat_hash_map.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/spdy_utils.h"
#include "quiche/quic/platform/api/quic_mutex.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/quic/tools/quic_simple_server_backend.h"
#include "quiche/spdy/core/http2_header_block.h"
#include "quiche/spdy/core/spdy_framer.h"
namespace quic {
class QuicMemoryCacheBackend : public QuicSimpleServerBackend {
public:
class ResourceFile {
public:
explicit ResourceFile(const std::string& file_name);
ResourceFile(const ResourceFile&) = delete;
ResourceFile& operator=(const ResourceFile&) = delete;
virtual ~ResourceFile();
void Read();
void SetHostPathFromBase(absl::string_view base);
const std::string& file_name() { return file_name_; }
absl::string_view host() { return host_; }
absl::string_view path() { return path_; }
const spdy::Http2HeaderBlock& spdy_headers() { return spdy_headers_; }
absl::string_view body() { return body_; }
const std::vector<absl::string_view>& push_urls() { return push_urls_; }
private:
void HandleXOriginalUrl();
absl::string_view RemoveScheme(absl::string_view url);
std::string file_name_;
std::string file_contents_;
absl::string_view body_;
spdy::Http2HeaderBlock spdy_headers_;
absl::string_view x_original_url_;
std::vector<absl::string_view> push_urls_;
std::string host_;
std::string path_;
};
QuicMemoryCacheBackend();
QuicMemoryCacheBackend(const QuicMemoryCacheBackend&) = delete;
QuicMemoryCacheBackend& operator=(const QuicMemoryCacheBackend&) = delete;
~QuicMemoryCacheBackend() override;
const QuicBackendResponse* GetResponse(absl::string_view host,
absl::string_view path) const;
void AddSimpleResponse(absl::string_view host, absl::string_view path,
int response_code, absl::string_view body);
void AddResponse(absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers,
absl::string_view response_body);
void AddResponse(absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers,
absl::string_view response_body,
spdy::Http2HeaderBlock response_trailers);
void AddResponseWithEarlyHints(
absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers, absl::string_view response_body,
const std::vector<spdy::Http2HeaderBlock>& early_hints);
void AddSpecialResponse(
absl::string_view host, absl::string_view path,
QuicBackendResponse::SpecialResponseType response_type);
void AddSpecialResponse(
absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers, absl::string_view response_body,
QuicBackendResponse::SpecialResponseType response_type);
bool SetResponseDelay(absl::string_view host, absl::string_view path,
QuicTime::Delta delay);
void AddDefaultResponse(QuicBackendResponse* response);
void GenerateDynamicResponses();
void EnableWebTransport();
bool InitializeBackend(const std::string& cache_directory) override;
bool IsBackendInitialized() const override;
void FetchResponseFromBackend(
const spdy::Http2HeaderBlock& request_headers,
const std::string& request_body,
QuicSimpleServerBackend::RequestHandler* quic_stream) override;
void CloseBackendResponseStream(
QuicSimpleServerBackend::RequestHandler* quic_stream) override;
WebTransportResponse ProcessWebTransportRequest(
const spdy::Http2HeaderBlock& request_headers,
WebTransportSession* session) override;
bool SupportsWebTransport() override { return enable_webtransport_; }
private:
void AddResponseImpl(absl::string_view host, absl::string_view path,
QuicBackendResponse::SpecialResponseType response_type,
spdy::Http2HeaderBlock response_headers,
absl::string_view response_body,
spdy::Http2HeaderBlock response_trailers,
const std::vector<spdy::Http2HeaderBlock>& early_hints);
std::string GetKey(absl::string_view host, absl::string_view path) const;
absl::flat_hash_map<std::string, std::unique_ptr<QuicBackendResponse>>
responses_ QUIC_GUARDED_BY(response_mutex_);
std::unique_ptr<QuicBackendResponse> default_response_
QUIC_GUARDED_BY(response_mutex_);
std::unique_ptr<QuicBackendResponse> generate_bytes_response_
QUIC_GUARDED_BY(response_mutex_);
mutable QuicMutex response_mutex_;
bool cache_initialized_;
bool enable_webtransport_ = false;
};
}
#endif
#include "quiche/quic/tools/quic_memory_cache_backend.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/match.h"
#include "absl/strings/numbers.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/spdy_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/tools/web_transport_test_visitors.h"
#include "quiche/common/platform/api/quiche_file_utils.h"
#include "quiche/common/quiche_text_utils.h"
using spdy::Http2HeaderBlock;
using spdy::kV3LowestPriority;
namespace quic {
QuicMemoryCacheBackend::ResourceFile::ResourceFile(const std::string& file_name)
: file_name_(file_name) {}
QuicMemoryCacheBackend::ResourceFile::~ResourceFile() = default;
void QuicMemoryCacheBackend::ResourceFile::Read() {
std::optional<std::string> maybe_file_contents =
quiche::ReadFileContents(file_name_);
if (!maybe_file_contents) {
QUIC_LOG(DFATAL) << "Failed to read file for the memory cache backend: "
<< file_name_;
return;
}
file_contents_ = *maybe_file_contents;
for (size_t start = 0; start < file_contents_.length();) {
size_t pos = file_contents_.find('\n', start);
if (pos == std::string::npos) {
QUIC_LOG(DFATAL) << "Headers invalid or empty, ignoring: " << file_name_;
return;
}
size_t len = pos - start;
if (file_contents_[pos - 1] == '\r') {
len -= 1;
}
absl::string_view line(file_contents_.data() + start, len);
start = pos + 1;
if (line.empty()) {
body_ = absl::string_view(file_contents_.data() + start,
file_contents_.size() - start);
break;
}
if (line.substr(0, 4) == "HTTP") {
pos = line.find(' ');
if (pos == std::string::npos) {
QUIC_LOG(DFATAL) << "Headers invalid or empty, ignoring: "
<< file_name_;
return;
}
spdy_headers_[":status"] = line.substr(pos + 1, 3);
continue;
}
pos = line.find(": ");
if (pos == std::string::npos) {
QUIC_LOG(DFATAL) << "Headers invalid or empty, ignoring: " << file_name_;
return;
}
spdy_headers_.AppendValueOrAddHeader(
quiche::QuicheTextUtils::ToLower(line.substr(0, pos)),
line.substr(pos + 2));
}
spdy_headers_.erase("connection");
if (auto it = spdy_headers_.find("x-original-url");
it != spdy_headers_.end()) {
x_original_url_ = it->second;
HandleXOriginalUrl();
}
}
void QuicMemoryCacheBackend::ResourceFile::SetHostPathFromBase(
absl::string_view base) {
QUICHE_DCHECK(base[0] != '/') << base;
size_t path_start = base.find_first_of('/');
if (path_start == absl::string_view::npos) {
host_ = std::string(base);
path_ = "";
return;
}
host_ = std::string(base.substr(0, path_start));
size_t query_start = base.find_first_of(',');
if (query_start > 0) {
path_ = std::string(base.substr(path_start, query_start - 1));
} else {
path_ = std::string(base.substr(path_start));
}
}
absl::string_view QuicMemoryCacheBackend::ResourceFile::RemoveScheme(
absl::string_view url) {
if (absl::StartsWith(url, "https:
url.remove_prefix(8);
} else if (absl::StartsWith(url, "http:
url.remove_prefix(7);
}
return url;
}
void QuicMemoryCacheBackend::ResourceFile::HandleXOriginalUrl() {
absl::string_view url(x_original_url_);
SetHostPathFromBase(RemoveScheme(url));
}
const QuicBackendResponse* QuicMemoryCacheBackend::GetResponse(
absl::string_view host, absl::string_view path) const {
QuicWriterMutexLock lock(&response_mutex_);
auto it = responses_.find(GetKey(host, path));
if (it == responses_.end()) {
uint64_t ignored = 0;
if (generate_bytes_response_) {
if (absl::SimpleAtoi(absl::string_view(path.data() + 1, path.size() - 1),
&ignored)) {
return generate_bytes_response_.get();
}
}
QUIC_DVLOG(1) << "Get response for resource failed: host " << host
<< " path " << path;
if (default_response_) {
return default_response_.get();
}
return nullptr;
}
return it->second.get();
}
using SpecialResponseType = QuicBackendResponse::SpecialResponseType;
void QuicMemoryCacheBackend::AddSimpleResponse(absl::string_view host,
absl::string_view path,
int response_code,
absl::string_view body) {
Http2HeaderBlock response_headers;
response_headers[":status"] = absl::StrCat(response_code);
response_headers["content-length"] = absl::StrCat(body.length());
AddResponse(host, path, std::move(response_headers), body);
}
void QuicMemoryCacheBackend::AddDefaultResponse(QuicBackendResponse* response) {
QuicWriterMutexLock lock(&response_mutex_);
default_response_.reset(response);
}
void QuicMemoryCacheBackend::AddResponse(absl::string_view host,
absl::string_view path,
Http2HeaderBlock response_headers,
absl::string_view response_body) {
AddResponseImpl(host, path, QuicBackendResponse::REGULAR_RESPONSE,
std::move(response_headers), response_body,
Http2HeaderBlock(), std::vector<spdy::Http2HeaderBlock>());
}
void QuicMemoryCacheBackend::AddResponse(absl::string_view host,
absl::string_view path,
Http2HeaderBlock response_headers,
absl::string_view response_body,
Http2HeaderBlock response_trailers) {
AddResponseImpl(host, path, QuicBackendResponse::REGULAR_RESPONSE,
std::move(response_headers), response_body,
std::move(response_trailers),
std::vector<spdy::Http2HeaderBlock>());
}
bool QuicMemoryCacheBackend::SetResponseDelay(absl::string_view host,
absl::string_view path,
QuicTime::Delta delay) {
QuicWriterMutexLock lock(&response_mutex_);
auto it = responses_.find(GetKey(host, path));
if (it == responses_.end()) return false;
it->second->set_delay(delay);
return true;
}
void QuicMemoryCacheBackend::AddResponseWithEarlyHints(
absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers, absl::string_view response_body,
const std::vector<spdy::Http2HeaderBlock>& early_hints) {
AddResponseImpl(host, path, QuicBackendResponse::REGULAR_RESPONSE,
std::move(response_headers), response_body,
Http2HeaderBlock(), early_hints);
}
void QuicMemoryCacheBackend::AddSpecialResponse(
absl::string_view host, absl::string_view path,
SpecialResponseType response_type) {
AddResponseImpl(host, path, response_type, Http2HeaderBlock(), "",
Http2HeaderBlock(), std::vector<spdy::Http2HeaderBlock>());
}
void QuicMemoryCacheBackend::AddSpecialResponse(
absl::string_view host, absl::string_view path,
spdy::Http2HeaderBlock response_headers, absl::string_view response_body,
SpecialResponseType response_type) {
AddResponseImpl(host, path, response_type, std::move(response_headers),
response_body, Http2HeaderBlock(),
std::vector<spdy::Http2HeaderBlock>());
}
QuicMemoryCacheBackend::QuicMemoryCacheBackend() : cache_initialized_(false) {}
bool QuicMemoryCacheBackend::InitializeBackend(
const std::string& cache_directory) {
if (cache_directory.empty()) {
QUIC_BUG(quic_bug_10932_1) << "cache_directory must not be empty.";
return false;
}
QUIC_LOG(INFO)
<< "Attempting to initialize QuicMemoryCacheBackend from directory: "
<< cache_directory;
std::vector<std::string> files;
if (!quiche::EnumerateDirectoryRecursively(cache_directory, files)) {
QUIC_BUG(QuicMemoryCacheBackend unreadable directory)
<< "Can't read QuicMemoryCacheBackend directory: " << cache_directory;
return false;
}
for (const auto& filename : files) {
std::unique_ptr<ResourceFile> resource_file(new ResourceFile(filename));
std::string base(resource_file->file_name());
for (size_t i = 0; i < base.length(); ++i) {
if (base[i] == '\\') {
base[i] = '/';
}
}
base.erase(0, cache_directory.length());
if (base[0] == '/') {
base.erase(0, 1);
}
resource_file->SetHostPathFromBase(base);
resource_file->Read();
AddResponse(resource_file->host(), resource_file->path(),
resource_file->spdy_headers().Clone(), resource_file->body());
}
cache_initialized_ = true;
return true;
}
void QuicMemoryCacheBackend::GenerateDynamicResponses() {
QuicWriterMutexLock lock(&response_mutex_);
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
generate_bytes_response_ = std::make_unique<QuicBackendResponse>();
generate_bytes_response_->set_headers(std::move(response_headers));
generate_bytes_response_->set_response_type(
QuicBackendResponse::GENERATE_BYTES);
}
void QuicMemoryCacheBackend::EnableWebTransport() {
enable_webtransport_ = true;
}
bool QuicMemoryCacheBackend::IsBackendInitialized() const {
return cache_initialized_;
}
void QuicMemoryCacheBackend::FetchResponseFromBackend(
const Http2HeaderBlock& request_headers,
const std::string& ,
QuicSimpleServerBackend::RequestHandler* quic_stream) {
const QuicBackendResponse* quic_response = nullptr;
auto authority = request_headers.find(":authority");
auto path = request_headers.find(":path");
if (authority != request_headers.end() && path != request_headers.end()) {
quic_response = GetResponse(authority->second, path->second);
}
std::string request_url;
if (authority != request_headers.end()) {
request_url = std::string(authority->second);
}
if (path != request_headers.end()) {
request_url += std::string(path->second);
}
QUIC_DVLOG(1)
<< "Fetching QUIC response from backend in-memory cache for url "
<< request_url;
quic_stream->OnResponseBackendComplete(quic_response);
}
void QuicMemoryCacheBackend::CloseBackendResponseStream(
QuicSimpleServerBackend::RequestHandler* ) {}
QuicMemoryCacheBackend::WebTransportResponse
QuicMemoryCacheBackend::ProcessWebTransportRequest(
const spdy::Http2HeaderBlock& request_headers,
WebTransportSession* session) {
if (!SupportsWebTransport()) {
return QuicSimpleServerBackend::ProcessWebTransportRequest(request_headers,
session);
}
auto path_it = request_headers.find(":path");
if (path_it == request_headers.end()) {
WebTransportResponse response;
response.response_headers[":status"] = "400";
return response;
}
absl::string_view path = path_it->second;
if (path == "/echo") {
WebTransportResponse response;
response.response_headers[":status"] = "200";
response.visitor =
std::make_unique<EchoWebTransportSessionVisitor>(session);
return response;
}
WebTransportResponse response;
response.response_headers[":status"] = "404";
return response;
}
QuicMemoryCacheBackend::~QuicMemoryCacheBackend() {
{
QuicWriterMutexLock lock(&response_mutex_);
responses_.clear();
}
}
void QuicMemoryCacheBackend::AddResponseImpl(
absl::string_view host, absl::string_view path,
SpecialResponseType response_type, Http2HeaderBlock response_headers,
absl::string_view response_body, Http2HeaderBlock response_trailers,
const std::vector<spdy::Http2HeaderBlock>& early_hints) {
QuicWriterMutexLock lock(&response_mutex_);
QUICHE_DCHECK(!host.empty())
<< "Host must be populated, e.g. \"www.google.com\"";
std::string key = GetKey(host, path);
if (responses_.contains(key)) {
QUIC_BUG(quic_bug_10932_3)
<< "Response for '" << key << "' already exists!";
return;
}
auto new_response = std::make_unique<QuicBackendResponse>();
new_response->set_response_type(response_type);
new_response->set_headers(std::move(response_headers));
new_response->set_body(response_body);
new_response->set_trailers(std::move(response_trailers));
for (auto& headers : early_hints) {
new_response->AddEarlyHints(headers);
}
QUIC_DVLOG(1) << "Add response with key " << key;
responses_[key] = std::move(new_response);
}
std::string QuicMemoryCacheBackend::GetKey(absl::string_view host,
absl::string_view path) const {
std::string host_string = std::string(host);
size_t port = host_string.find(':');
if (port != std::string::npos)
host_string = std::string(host_string.c_str(), port);
return host_string + std::string(path);
}
} | #include "quiche/quic/tools/quic_memory_cache_backend.h"
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/match.h"
#include "absl/strings/str_cat.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/tools/quic_backend_response.h"
#include "quiche/common/platform/api/quiche_file_utils.h"
#include "quiche/common/platform/api/quiche_test.h"
namespace quic {
namespace test {
namespace {
using Response = QuicBackendResponse;
}
class QuicMemoryCacheBackendTest : public QuicTest {
protected:
void CreateRequest(std::string host, std::string path,
spdy::Http2HeaderBlock* headers) {
(*headers)[":method"] = "GET";
(*headers)[":path"] = path;
(*headers)[":authority"] = host;
(*headers)[":scheme"] = "https";
}
std::string CacheDirectory() {
return quiche::test::QuicheGetTestMemoryCachePath();
}
QuicMemoryCacheBackend cache_;
};
TEST_F(QuicMemoryCacheBackendTest, GetResponseNoMatch) {
const Response* response =
cache_.GetResponse("mail.google.com", "/index.html");
ASSERT_FALSE(response);
}
TEST_F(QuicMemoryCacheBackendTest, AddSimpleResponseGetResponse) {
std::string response_body("hello response");
cache_.AddSimpleResponse("www.google.com", "/", 200, response_body);
spdy::Http2HeaderBlock request_headers;
CreateRequest("www.google.com", "/", &request_headers);
const Response* response = cache_.GetResponse("www.google.com", "/");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
EXPECT_EQ(response_body.size(), response->body().length());
}
TEST_F(QuicMemoryCacheBackendTest, AddResponse) {
const std::string kRequestHost = "www.foo.com";
const std::string kRequestPath = "/";
const std::string kResponseBody("hello response");
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
response_headers["content-length"] = absl::StrCat(kResponseBody.size());
spdy::Http2HeaderBlock response_trailers;
response_trailers["key-1"] = "value-1";
response_trailers["key-2"] = "value-2";
response_trailers["key-3"] = "value-3";
cache_.AddResponse(kRequestHost, "/", response_headers.Clone(), kResponseBody,
response_trailers.Clone());
const Response* response = cache_.GetResponse(kRequestHost, kRequestPath);
EXPECT_EQ(response->headers(), response_headers);
EXPECT_EQ(response->body(), kResponseBody);
EXPECT_EQ(response->trailers(), response_trailers);
}
#if defined(OS_IOS)
#define MAYBE_ReadsCacheDir DISABLED_ReadsCacheDir
#else
#define MAYBE_ReadsCacheDir ReadsCacheDir
#endif
TEST_F(QuicMemoryCacheBackendTest, MAYBE_ReadsCacheDir) {
cache_.InitializeBackend(CacheDirectory());
const Response* response =
cache_.GetResponse("test.example.com", "/index.html");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
EXPECT_FALSE(response->headers().contains("connection"));
EXPECT_LT(0U, response->body().length());
}
#if defined(OS_IOS)
#define MAYBE_UsesOriginalUrl DISABLED_UsesOriginalUrl
#else
#define MAYBE_UsesOriginalUrl UsesOriginalUrl
#endif
TEST_F(QuicMemoryCacheBackendTest, MAYBE_UsesOriginalUrl) {
cache_.InitializeBackend(CacheDirectory());
const Response* response =
cache_.GetResponse("test.example.com", "/site_map.html");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
EXPECT_FALSE(response->headers().contains("connection"));
EXPECT_LT(0U, response->body().length());
}
#if defined(OS_IOS)
#define MAYBE_UsesOriginalUrlOnly DISABLED_UsesOriginalUrlOnly
#else
#define MAYBE_UsesOriginalUrlOnly UsesOriginalUrlOnly
#endif
TEST_F(QuicMemoryCacheBackendTest, MAYBE_UsesOriginalUrlOnly) {
std::string dir;
std::string path = "map.html";
std::vector<std::string> files;
ASSERT_TRUE(quiche::EnumerateDirectoryRecursively(CacheDirectory(), files));
for (const std::string& file : files) {
if (absl::EndsWithIgnoreCase(file, "map.html")) {
dir = file;
dir.erase(dir.length() - path.length() - 1);
break;
}
}
ASSERT_NE("", dir);
cache_.InitializeBackend(dir);
const Response* response =
cache_.GetResponse("test.example.com", "/site_map.html");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
EXPECT_FALSE(response->headers().contains("connection"));
EXPECT_LT(0U, response->body().length());
}
TEST_F(QuicMemoryCacheBackendTest, DefaultResponse) {
const Response* response = cache_.GetResponse("www.google.com", "/");
ASSERT_FALSE(response);
spdy::Http2HeaderBlock response_headers;
response_headers[":status"] = "200";
response_headers["content-length"] = "0";
Response* default_response = new Response;
default_response->set_headers(std::move(response_headers));
cache_.AddDefaultResponse(default_response);
response = cache_.GetResponse("www.google.com", "/");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
cache_.AddSimpleResponse("www.google.com", "/", 302, "");
response = cache_.GetResponse("www.google.com", "/");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("302", response->headers().find(":status")->second);
response = cache_.GetResponse("www.google.com", "/asd");
ASSERT_TRUE(response);
ASSERT_TRUE(response->headers().contains(":status"));
EXPECT_EQ("200", response->headers().find(":status")->second);
}
}
} |
212 | cpp | google/quiche | qbone_stream | quiche/quic/qbone/qbone_stream.cc | quiche/quic/qbone/qbone_stream_test.cc | #ifndef QUICHE_QUIC_QBONE_QBONE_STREAM_H_
#define QUICHE_QUIC_QBONE_QBONE_STREAM_H_
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QboneSessionBase;
class QUIC_EXPORT_PRIVATE QboneWriteOnlyStream : public QuicStream {
public:
QboneWriteOnlyStream(QuicStreamId id, QuicSession* session);
void OnDataAvailable() override {}
void WritePacketToQuicStream(absl::string_view packet);
};
class QUIC_EXPORT_PRIVATE QboneReadOnlyStream : public QuicStream {
public:
QboneReadOnlyStream(QuicStreamId id, QboneSessionBase* session);
~QboneReadOnlyStream() override = default;
void OnDataAvailable() override;
private:
std::string buffer_;
QboneSessionBase* session_;
};
}
#endif
#include "quiche/quic/qbone/qbone_stream.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/qbone/qbone_constants.h"
#include "quiche/quic/qbone/qbone_session_base.h"
#include "quiche/common/platform/api/quiche_command_line_flags.h"
DEFINE_QUICHE_COMMAND_LINE_FLAG(int, qbone_stream_ttl_secs, 3,
"The QBONE Stream TTL in seconds.");
namespace quic {
QboneWriteOnlyStream::QboneWriteOnlyStream(QuicStreamId id,
QuicSession* session)
: QuicStream(id, session, false, WRITE_UNIDIRECTIONAL) {
MaybeSetTtl(QuicTime::Delta::FromSeconds(
quiche::GetQuicheCommandLineFlag(FLAGS_qbone_stream_ttl_secs)));
}
void QboneWriteOnlyStream::WritePacketToQuicStream(absl::string_view packet) {
WriteOrBufferData(packet, true, nullptr);
}
QboneReadOnlyStream::QboneReadOnlyStream(QuicStreamId id,
QboneSessionBase* session)
: QuicStream(id, session,
false, READ_UNIDIRECTIONAL),
session_(session) {
MaybeSetTtl(QuicTime::Delta::FromSeconds(
quiche::GetQuicheCommandLineFlag(FLAGS_qbone_stream_ttl_secs)));
}
void QboneReadOnlyStream::OnDataAvailable() {
sequencer()->Read(&buffer_);
if (sequencer()->IsClosed()) {
session_->ProcessPacketFromPeer(buffer_);
OnFinRead();
return;
}
if (buffer_.size() > QboneConstants::kMaxQbonePacketBytes) {
if (!rst_sent()) {
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
}
StopReading();
}
}
} | #include "quiche/quic/qbone/qbone_stream.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/qbone/qbone_constants.h"
#include "quiche/quic/qbone/qbone_session_base.h"
#include "quiche/quic/test_tools/mock_clock.h"
#include "quiche/quic/test_tools/mock_connection_id_generator.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/simple_buffer_allocator.h"
namespace quic {
namespace {
using ::testing::_;
using ::testing::StrictMock;
class MockQuicSession : public QboneSessionBase {
public:
MockQuicSession(QuicConnection* connection, const QuicConfig& config)
: QboneSessionBase(connection, nullptr , config,
CurrentSupportedVersions(), nullptr ) {}
~MockQuicSession() override {}
QuicConsumedData WritevData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset, StreamSendingState state,
TransmissionType type,
EncryptionLevel level) override {
if (!writable_) {
return QuicConsumedData(0, false);
}
return QuicConsumedData(write_length, state != StreamSendingState::NO_FIN);
}
QboneReadOnlyStream* CreateIncomingStream(QuicStreamId id) override {
return nullptr;
}
MOCK_METHOD(void, MaybeSendRstStreamFrame,
(QuicStreamId stream_id, QuicResetStreamError error,
QuicStreamOffset bytes_written),
(override));
MOCK_METHOD(void, MaybeSendStopSendingFrame,
(QuicStreamId stream_id, QuicResetStreamError error), (override));
void set_writable(bool writable) { writable_ = writable; }
void RegisterReliableStream(QuicStreamId stream_id) {
write_blocked_streams()->RegisterStream(stream_id,
false,
QuicStreamPriority());
}
void ActivateReliableStream(std::unique_ptr<QuicStream> stream) {
ActivateStream(std::move(stream));
}
std::unique_ptr<QuicCryptoStream> CreateCryptoStream() override {
return std::make_unique<test::MockQuicCryptoStream>(this);
}
MOCK_METHOD(void, ProcessPacketFromPeer, (absl::string_view), (override));
MOCK_METHOD(void, ProcessPacketFromNetwork, (absl::string_view), (override));
private:
bool writable_ = true;
};
class DummyPacketWriter : public QuicPacketWriter {
public:
DummyPacketWriter() {}
WriteResult WritePacket(const char* buffer, size_t buf_len,
const QuicIpAddress& self_address,
const QuicSocketAddress& peer_address,
PerPacketOptions* options,
const QuicPacketWriterParams& params) override {
return WriteResult(WRITE_STATUS_ERROR, 0);
}
bool IsWriteBlocked() const override { return false; };
void SetWritable() override {}
std::optional<int> MessageTooBigErrorCode() const override {
return std::nullopt;
}
QuicByteCount GetMaxPacketSize(
const QuicSocketAddress& peer_address) const override {
return 0;
}
bool SupportsReleaseTime() const override { return false; }
bool IsBatchMode() const override { return false; }
bool SupportsEcn() const override { return false; }
QuicPacketBuffer GetNextWriteLocation(
const QuicIpAddress& self_address,
const QuicSocketAddress& peer_address) override {
return {nullptr, nullptr};
}
WriteResult Flush() override { return WriteResult(WRITE_STATUS_OK, 0); }
};
class QboneReadOnlyStreamTest : public ::testing::Test,
public QuicConnectionHelperInterface {
public:
void CreateReliableQuicStream() {
Perspective perspective = Perspective::IS_SERVER;
bool owns_writer = true;
alarm_factory_ = std::make_unique<test::MockAlarmFactory>();
connection_.reset(new QuicConnection(
test::TestConnectionId(0), QuicSocketAddress(TestLoopback(), 0),
QuicSocketAddress(TestLoopback(), 0),
this , alarm_factory_.get(),
new DummyPacketWriter(), owns_writer, perspective,
ParsedVersionOfIndex(CurrentSupportedVersions(), 0),
connection_id_generator_));
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
session_ = std::make_unique<StrictMock<MockQuicSession>>(connection_.get(),
QuicConfig());
session_->Initialize();
stream_ = new QboneReadOnlyStream(kStreamId, session_.get());
session_->ActivateReliableStream(
std::unique_ptr<QboneReadOnlyStream>(stream_));
}
~QboneReadOnlyStreamTest() override {}
const QuicClock* GetClock() const override { return &clock_; }
QuicRandom* GetRandomGenerator() override {
return QuicRandom::GetInstance();
}
quiche::QuicheBufferAllocator* GetStreamSendBufferAllocator() override {
return &buffer_allocator_;
}
protected:
QboneReadOnlyStream* stream_;
std::unique_ptr<StrictMock<MockQuicSession>> session_;
std::unique_ptr<QuicAlarmFactory> alarm_factory_;
std::unique_ptr<QuicConnection> connection_;
quiche::SimpleBufferAllocator buffer_allocator_;
MockClock clock_;
const QuicStreamId kStreamId = QuicUtils::GetFirstUnidirectionalStreamId(
CurrentSupportedVersions()[0].transport_version, Perspective::IS_CLIENT);
quic::test::MockConnectionIdGenerator connection_id_generator_;
};
TEST_F(QboneReadOnlyStreamTest, ReadDataWhole) {
std::string packet = "Stuff";
CreateReliableQuicStream();
QuicStreamFrame frame(kStreamId, true, 0, packet);
EXPECT_CALL(*session_, ProcessPacketFromPeer("Stuff"));
stream_->OnStreamFrame(frame);
}
TEST_F(QboneReadOnlyStreamTest, ReadBuffered) {
CreateReliableQuicStream();
std::string packet = "Stuf";
{
QuicStreamFrame frame(kStreamId, false, 0, packet);
stream_->OnStreamFrame(frame);
}
packet = "f";
EXPECT_CALL(*session_, ProcessPacketFromPeer("Stuff"));
{
QuicStreamFrame frame(kStreamId, true, 4, packet);
stream_->OnStreamFrame(frame);
}
}
TEST_F(QboneReadOnlyStreamTest, ReadOutOfOrder) {
CreateReliableQuicStream();
std::string packet = "f";
{
QuicStreamFrame frame(kStreamId, true, 4, packet);
stream_->OnStreamFrame(frame);
}
packet = "S";
{
QuicStreamFrame frame(kStreamId, false, 0, packet);
stream_->OnStreamFrame(frame);
}
packet = "tuf";
EXPECT_CALL(*session_, ProcessPacketFromPeer("Stuff"));
{
QuicStreamFrame frame(kStreamId, false, 1, packet);
stream_->OnStreamFrame(frame);
}
}
TEST_F(QboneReadOnlyStreamTest, ReadBufferedTooLarge) {
CreateReliableQuicStream();
std::string packet = "0123456789";
int iterations = (QboneConstants::kMaxQbonePacketBytes / packet.size()) + 2;
EXPECT_CALL(*session_, MaybeSendStopSendingFrame(
kStreamId, QuicResetStreamError::FromInternal(
QUIC_BAD_APPLICATION_PAYLOAD)));
EXPECT_CALL(
*session_,
MaybeSendRstStreamFrame(
kStreamId,
QuicResetStreamError::FromInternal(QUIC_BAD_APPLICATION_PAYLOAD), _));
for (int i = 0; i < iterations; ++i) {
QuicStreamFrame frame(kStreamId, i == (iterations - 1), i * packet.size(),
packet);
if (!stream_->reading_stopped()) {
stream_->OnStreamFrame(frame);
}
}
EXPECT_TRUE(stream_->reading_stopped());
}
}
} |
213 | cpp | google/quiche | qbone_client | quiche/quic/qbone/qbone_client.cc | quiche/quic/qbone/qbone_client_test.cc | #ifndef QUICHE_QUIC_QBONE_QBONE_CLIENT_H_
#define QUICHE_QUIC_QBONE_QBONE_CLIENT_H_
#include "absl/strings/string_view.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/qbone/qbone_client_interface.h"
#include "quiche/quic/qbone/qbone_client_session.h"
#include "quiche/quic/qbone/qbone_packet_writer.h"
#include "quiche/quic/tools/quic_client_base.h"
namespace quic {
class QboneClient : public QuicClientBase, public QboneClientInterface {
public:
QboneClient(QuicSocketAddress server_address, const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicSession::Visitor* session_owner, const QuicConfig& config,
QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier,
QbonePacketWriter* qbone_writer,
QboneClientControlStream::Handler* qbone_handler);
~QboneClient() override;
QboneClientSession* qbone_session();
void ProcessPacketFromNetwork(absl::string_view packet) override;
bool EarlyDataAccepted() override;
bool ReceivedInchoateReject() override;
void set_max_pacing_rate(QuicBandwidth max_pacing_rate) {
max_pacing_rate_ = max_pacing_rate;
}
QuicBandwidth max_pacing_rate() const { return max_pacing_rate_; }
bool use_quarantine_mode() const;
void set_use_quarantine_mode(bool use_quarantine_mode);
protected:
int GetNumSentClientHellosFromSession() override;
int GetNumReceivedServerConfigUpdatesFromSession() override;
void ResendSavedData() override;
void ClearDataToResend() override;
std::unique_ptr<QuicSession> CreateQuicClientSession(
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection) override;
QbonePacketWriter* qbone_writer() { return qbone_writer_; }
QboneClientControlStream::Handler* qbone_control_handler() {
return qbone_handler_;
}
QuicSession::Visitor* session_owner() { return session_owner_; }
bool HasActiveRequests() override;
private:
QbonePacketWriter* qbone_writer_;
QboneClientControlStream::Handler* qbone_handler_;
QuicSession::Visitor* session_owner_;
QuicBandwidth max_pacing_rate_;
bool use_quarantine_mode_ = false;
};
}
#endif
#include "quiche/quic/qbone/qbone_client.h"
#include <memory>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/core/quic_default_connection_helper.h"
#include "quiche/quic/platform/api/quic_testvalue.h"
#include "quiche/quic/tools/quic_client_default_network_helper.h"
namespace quic {
namespace {
std::unique_ptr<QuicClientBase::NetworkHelper> CreateNetworkHelper(
QuicEventLoop* event_loop, QboneClient* client) {
std::unique_ptr<QuicClientBase::NetworkHelper> helper =
std::make_unique<QuicClientDefaultNetworkHelper>(event_loop, client);
quic::AdjustTestValue("QboneClient/network_helper", &helper);
return helper;
}
}
QboneClient::QboneClient(QuicSocketAddress server_address,
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicSession::Visitor* session_owner,
const QuicConfig& config, QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier,
QbonePacketWriter* qbone_writer,
QboneClientControlStream::Handler* qbone_handler)
: QuicClientBase(server_id, supported_versions, config,
new QuicDefaultConnectionHelper(),
event_loop->CreateAlarmFactory().release(),
CreateNetworkHelper(event_loop, this),
std::move(proof_verifier), nullptr),
qbone_writer_(qbone_writer),
qbone_handler_(qbone_handler),
session_owner_(session_owner),
max_pacing_rate_(QuicBandwidth::Zero()) {
set_server_address(server_address);
crypto_config()->set_alpn("qbone");
}
QboneClient::~QboneClient() { ResetSession(); }
QboneClientSession* QboneClient::qbone_session() {
return static_cast<QboneClientSession*>(QuicClientBase::session());
}
void QboneClient::ProcessPacketFromNetwork(absl::string_view packet) {
qbone_session()->ProcessPacketFromNetwork(packet);
}
bool QboneClient::EarlyDataAccepted() {
return qbone_session()->EarlyDataAccepted();
}
bool QboneClient::ReceivedInchoateReject() {
return qbone_session()->ReceivedInchoateReject();
}
int QboneClient::GetNumSentClientHellosFromSession() {
return qbone_session()->GetNumSentClientHellos();
}
int QboneClient::GetNumReceivedServerConfigUpdatesFromSession() {
return qbone_session()->GetNumReceivedServerConfigUpdates();
}
void QboneClient::ResendSavedData() {
}
void QboneClient::ClearDataToResend() {
}
bool QboneClient::HasActiveRequests() {
return qbone_session()->HasActiveRequests();
}
class QboneClientSessionWithConnection : public QboneClientSession {
public:
using QboneClientSession::QboneClientSession;
~QboneClientSessionWithConnection() override { DeleteConnection(); }
};
std::unique_ptr<QuicSession> QboneClient::CreateQuicClientSession(
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection) {
if (max_pacing_rate() > quic::QuicBandwidth::Zero()) {
QUIC_LOG(INFO) << "Setting max pacing rate to " << max_pacing_rate();
connection->SetMaxPacingRate(max_pacing_rate());
}
return std::make_unique<QboneClientSessionWithConnection>(
connection, crypto_config(), session_owner(), *config(),
supported_versions, server_id(), qbone_writer_, qbone_handler_);
}
bool QboneClient::use_quarantine_mode() const { return use_quarantine_mode_; }
void QboneClient::set_use_quarantine_mode(bool use_quarantine_mode) {
use_quarantine_mode_ = use_quarantine_mode;
}
} | #include "quiche/quic/qbone/qbone_client.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/io/quic_default_event_loop.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/core/quic_default_connection_helper.h"
#include "quiche/quic/core/quic_dispatcher.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_mutex.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_test_loopback.h"
#include "quiche/quic/qbone/qbone_packet_processor_test_tools.h"
#include "quiche/quic/qbone/qbone_server_session.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_dispatcher_peer.h"
#include "quiche/quic/test_tools/quic_server_peer.h"
#include "quiche/quic/test_tools/server_thread.h"
#include "quiche/quic/tools/quic_memory_cache_backend.h"
#include "quiche/quic/tools/quic_server.h"
namespace quic {
namespace test {
namespace {
using ::testing::ElementsAre;
ParsedQuicVersionVector GetTestParams() {
ParsedQuicVersionVector test_versions;
SetQuicReloadableFlag(quic_disable_version_q046, false);
return CurrentSupportedVersionsWithQuicCrypto();
}
std::string TestPacketIn(const std::string& body) {
return PrependIPv6HeaderForTest(body, 5);
}
std::string TestPacketOut(const std::string& body) {
return PrependIPv6HeaderForTest(body, 4);
}
class DataSavingQbonePacketWriter : public QbonePacketWriter {
public:
void WritePacketToNetwork(const char* packet, size_t size) override {
QuicWriterMutexLock lock(&mu_);
data_.push_back(std::string(packet, size));
}
std::vector<std::string> data() {
QuicWriterMutexLock lock(&mu_);
return data_;
}
private:
QuicMutex mu_;
std::vector<std::string> data_;
};
class ConnectionOwningQboneServerSession : public QboneServerSession {
public:
ConnectionOwningQboneServerSession(
const ParsedQuicVersionVector& supported_versions,
QuicConnection* connection, Visitor* owner, const QuicConfig& config,
const QuicCryptoServerConfig* quic_crypto_server_config,
QuicCompressedCertsCache* compressed_certs_cache,
QbonePacketWriter* writer)
: QboneServerSession(supported_versions, connection, owner, config,
quic_crypto_server_config, compressed_certs_cache,
writer, TestLoopback6(), TestLoopback6(), 64,
nullptr),
connection_(connection) {}
private:
std::unique_ptr<QuicConnection> connection_;
};
class QuicQboneDispatcher : public QuicDispatcher {
public:
QuicQboneDispatcher(
const QuicConfig* config, const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager,
std::unique_ptr<QuicConnectionHelperInterface> helper,
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
std::unique_ptr<QuicAlarmFactory> alarm_factory,
QbonePacketWriter* writer, ConnectionIdGeneratorInterface& generator)
: QuicDispatcher(config, crypto_config, version_manager,
std::move(helper), std::move(session_helper),
std::move(alarm_factory), kQuicDefaultConnectionIdLength,
generator),
writer_(writer) {}
std::unique_ptr<QuicSession> CreateQuicSession(
QuicConnectionId id, const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, absl::string_view alpn,
const ParsedQuicVersion& version,
const ParsedClientHello& ,
ConnectionIdGeneratorInterface& connection_id_generator) override {
QUICHE_CHECK_EQ(alpn, "qbone");
QuicConnection* connection = new QuicConnection(
id, self_address, peer_address, helper(), alarm_factory(), writer(),
false, Perspective::IS_SERVER,
ParsedQuicVersionVector{version}, connection_id_generator);
auto session = std::make_unique<ConnectionOwningQboneServerSession>(
GetSupportedVersions(), connection, this, config(), crypto_config(),
compressed_certs_cache(), writer_);
session->Initialize();
return session;
}
private:
QbonePacketWriter* writer_;
};
class QboneTestServer : public QuicServer {
public:
explicit QboneTestServer(std::unique_ptr<ProofSource> proof_source,
quic::QuicMemoryCacheBackend* response_cache)
: QuicServer(std::move(proof_source), response_cache) {}
QuicDispatcher* CreateQuicDispatcher() override {
return new QuicQboneDispatcher(
&config(), &crypto_config(), version_manager(),
std::make_unique<QuicDefaultConnectionHelper>(),
std::make_unique<QboneCryptoServerStreamHelper>(),
event_loop()->CreateAlarmFactory(), &writer_,
connection_id_generator());
}
std::vector<std::string> data() { return writer_.data(); }
private:
DataSavingQbonePacketWriter writer_;
};
class QboneTestClient : public QboneClient {
public:
QboneTestClient(QuicSocketAddress server_address,
const QuicServerId& server_id,
const ParsedQuicVersionVector& supported_versions,
QuicEventLoop* event_loop,
std::unique_ptr<ProofVerifier> proof_verifier)
: QboneClient(server_address, server_id, supported_versions,
nullptr, QuicConfig(), event_loop,
std::move(proof_verifier), &qbone_writer_, nullptr) {}
~QboneTestClient() override {}
void SendData(const std::string& data) {
qbone_session()->ProcessPacketFromNetwork(data);
}
void WaitForWriteToFlush() {
while (connected() && session()->HasDataToWrite()) {
WaitForEvents();
}
}
bool WaitForDataSize(int n, QuicTime::Delta timeout) {
const QuicClock* clock =
quic::test::QuicConnectionPeer::GetHelper(session()->connection())
->GetClock();
const QuicTime deadline = clock->Now() + timeout;
while (data().size() < n) {
if (clock->Now() > deadline) {
return false;
}
WaitForEvents();
}
return true;
}
std::vector<std::string> data() { return qbone_writer_.data(); }
private:
DataSavingQbonePacketWriter qbone_writer_;
};
class QboneClientTest : public QuicTestWithParam<ParsedQuicVersion> {};
INSTANTIATE_TEST_SUITE_P(Tests, QboneClientTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QboneClientTest, SendDataFromClient) {
quic::QuicMemoryCacheBackend server_backend;
auto server = std::make_unique<QboneTestServer>(
crypto_test_utils::ProofSourceForTesting(), &server_backend);
QboneTestServer* server_ptr = server.get();
QuicSocketAddress server_address(TestLoopback(), 0);
ServerThread server_thread(std::move(server), server_address);
server_thread.Initialize();
server_address =
QuicSocketAddress(server_address.host(), server_thread.GetPort());
server_thread.Start();
std::unique_ptr<QuicEventLoop> event_loop =
GetDefaultEventLoop()->Create(quic::QuicDefaultClock::Get());
QboneTestClient client(
server_address,
QuicServerId("test.example.com", server_address.port(), false),
ParsedQuicVersionVector{GetParam()}, event_loop.get(),
crypto_test_utils::ProofVerifierForTesting());
ASSERT_TRUE(client.Initialize());
ASSERT_TRUE(client.Connect());
ASSERT_TRUE(client.WaitForOneRttKeysAvailable());
client.SendData(TestPacketIn("hello"));
client.SendData(TestPacketIn("world"));
client.WaitForWriteToFlush();
ASSERT_TRUE(
server_thread.WaitUntil([&] { return server_ptr->data().size() >= 2; },
QuicTime::Delta::FromSeconds(5)));
std::string long_data(1000, 'A');
server_thread.Schedule([server_ptr, &long_data]() {
EXPECT_THAT(server_ptr->data(),
ElementsAre(TestPacketOut("hello"), TestPacketOut("world")));
auto server_session = static_cast<QboneServerSession*>(
QuicDispatcherPeer::GetFirstSessionIfAny(
QuicServerPeer::GetDispatcher(server_ptr)));
server_session->ProcessPacketFromNetwork(
TestPacketIn("Somethingsomething"));
server_session->ProcessPacketFromNetwork(TestPacketIn(long_data));
server_session->ProcessPacketFromNetwork(TestPacketIn(long_data));
});
EXPECT_TRUE(client.WaitForDataSize(3, QuicTime::Delta::FromSeconds(5)));
EXPECT_THAT(client.data(),
ElementsAre(TestPacketOut("Somethingsomething"),
TestPacketOut(long_data), TestPacketOut(long_data)));
client.Disconnect();
server_thread.Quit();
server_thread.Join();
}
}
}
} |
214 | cpp | google/quiche | qbone_packet_processor | quiche/quic/qbone/qbone_packet_processor.cc | quiche/quic/qbone/qbone_packet_processor_test.cc | #ifndef QUICHE_QUIC_QBONE_QBONE_PACKET_PROCESSOR_H_
#define QUICHE_QUIC_QBONE_QBONE_PACKET_PROCESSOR_H_
#include <netinet/icmp6.h>
#include <netinet/in.h>
#include <netinet/ip6.h>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
namespace quic {
enum : size_t {
kIPv6HeaderSize = 40,
kICMPv6HeaderSize = sizeof(icmp6_hdr),
kTotalICMPv6HeaderSize = kIPv6HeaderSize + kICMPv6HeaderSize,
};
class QbonePacketProcessor {
public:
enum class Direction {
FROM_OFF_NETWORK = 0,
FROM_NETWORK = 1
};
enum class ProcessingResult {
OK = 0,
SILENT_DROP = 1,
ICMP = 2,
ICMP_AND_TCP_RESET = 4,
TCP_RESET = 5,
};
class OutputInterface {
public:
virtual ~OutputInterface();
virtual void SendPacketToClient(absl::string_view packet) = 0;
virtual void SendPacketToNetwork(absl::string_view packet) = 0;
};
class StatsInterface {
public:
virtual ~StatsInterface();
virtual void OnPacketForwarded(Direction direction,
uint8_t traffic_class) = 0;
virtual void OnPacketDroppedSilently(Direction direction,
uint8_t traffic_class) = 0;
virtual void OnPacketDroppedWithIcmp(Direction direction,
uint8_t traffic_class) = 0;
virtual void OnPacketDroppedWithTcpReset(Direction direction,
uint8_t traffic_class) = 0;
virtual void RecordThroughput(size_t bytes, Direction direction,
uint8_t traffic_class) = 0;
};
class Filter {
public:
virtual ~Filter();
virtual ProcessingResult FilterPacket(Direction direction,
absl::string_view full_packet,
absl::string_view payload,
icmp6_hdr* icmp_header);
protected:
uint8_t TransportProtocolFromHeader(absl::string_view ipv6_header) {
return ipv6_header[6];
}
QuicIpAddress SourceIpFromHeader(absl::string_view ipv6_header) {
QuicIpAddress address;
address.FromPackedString(&ipv6_header[8],
QuicIpAddress::kIPv6AddressSize);
return address;
}
QuicIpAddress DestinationIpFromHeader(absl::string_view ipv6_header) {
QuicIpAddress address;
address.FromPackedString(&ipv6_header[24],
QuicIpAddress::kIPv6AddressSize);
return address;
}
};
QbonePacketProcessor(QuicIpAddress self_ip, QuicIpAddress client_ip,
size_t client_ip_subnet_length, OutputInterface* output,
StatsInterface* stats);
QbonePacketProcessor(const QbonePacketProcessor&) = delete;
QbonePacketProcessor& operator=(const QbonePacketProcessor&) = delete;
void ProcessPacket(std::string* packet, Direction direction);
void set_filter(std::unique_ptr<Filter> filter) {
filter_ = std::move(filter);
}
void set_client_ip(QuicIpAddress client_ip) { client_ip_ = client_ip; }
void set_client_ip_subnet_length(size_t client_ip_subnet_length) {
client_ip_subnet_length_ = client_ip_subnet_length;
}
static const QuicIpAddress kInvalidIpAddress;
static uint8_t TrafficClassFromHeader(absl::string_view ipv6_header);
protected:
ProcessingResult ProcessIPv6HeaderAndFilter(std::string* packet,
Direction direction,
uint8_t* transport_protocol,
char** transport_data,
icmp6_hdr* icmp_header);
void SendIcmpResponse(in6_addr dst, icmp6_hdr* icmp_header,
absl::string_view payload,
Direction original_direction);
void SendTcpReset(absl::string_view original_packet,
Direction original_direction);
bool IsValid() const { return client_ip_ != kInvalidIpAddress; }
in6_addr self_ip_;
QuicIpAddress client_ip_;
size_t client_ip_subnet_length_;
OutputInterface* output_;
StatsInterface* stats_;
std::unique_ptr<Filter> filter_;
private:
ProcessingResult ProcessIPv6Header(std::string* packet, Direction direction,
uint8_t* transport_protocol,
char** transport_data,
icmp6_hdr* icmp_header);
void SendResponse(Direction original_direction, absl::string_view packet);
in6_addr GetDestinationFromPacket(absl::string_view packet);
};
}
#endif
#include "quiche/quic/qbone/qbone_packet_processor.h"
#include <netinet/icmp6.h>
#include <netinet/in.h>
#include <netinet/ip6.h>
#include <cstdint>
#include <cstring>
#include <string>
#include "absl/base/optimization.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/qbone/platform/icmp_packet.h"
#include "quiche/quic/qbone/platform/tcp_packet.h"
#include "quiche/common/quiche_endian.h"
namespace {
constexpr size_t kIPv6AddressSize = 16;
constexpr size_t kIPv6MinPacketSize = 1280;
constexpr size_t kIcmpTtl = 64;
constexpr size_t kICMPv6DestinationUnreachableDueToSourcePolicy = 5;
constexpr size_t kIPv6DestinationOffset = 8;
}
namespace quic {
const QuicIpAddress QbonePacketProcessor::kInvalidIpAddress =
QuicIpAddress::Any6();
QbonePacketProcessor::QbonePacketProcessor(QuicIpAddress self_ip,
QuicIpAddress client_ip,
size_t client_ip_subnet_length,
OutputInterface* output,
StatsInterface* stats)
: client_ip_(client_ip),
output_(output),
stats_(stats),
filter_(new Filter) {
memcpy(self_ip_.s6_addr, self_ip.ToPackedString().data(), kIPv6AddressSize);
QUICHE_DCHECK_LE(client_ip_subnet_length, kIPv6AddressSize * 8);
client_ip_subnet_length_ = client_ip_subnet_length;
QUICHE_DCHECK(IpAddressFamily::IP_V6 == self_ip.address_family());
QUICHE_DCHECK(IpAddressFamily::IP_V6 == client_ip.address_family());
QUICHE_DCHECK(self_ip != kInvalidIpAddress);
}
QbonePacketProcessor::OutputInterface::~OutputInterface() {}
QbonePacketProcessor::StatsInterface::~StatsInterface() {}
QbonePacketProcessor::Filter::~Filter() {}
QbonePacketProcessor::ProcessingResult
QbonePacketProcessor::Filter::FilterPacket(Direction direction,
absl::string_view full_packet,
absl::string_view payload,
icmp6_hdr* icmp_header) {
return ProcessingResult::OK;
}
void QbonePacketProcessor::ProcessPacket(std::string* packet,
Direction direction) {
uint8_t traffic_class = TrafficClassFromHeader(*packet);
if (ABSL_PREDICT_FALSE(!IsValid())) {
QUIC_BUG(quic_bug_11024_1)
<< "QuicPacketProcessor is invoked in an invalid state.";
stats_->OnPacketDroppedSilently(direction, traffic_class);
return;
}
stats_->RecordThroughput(packet->size(), direction, traffic_class);
uint8_t transport_protocol;
char* transport_data;
icmp6_hdr icmp_header;
memset(&icmp_header, 0, sizeof(icmp_header));
ProcessingResult result = ProcessIPv6HeaderAndFilter(
packet, direction, &transport_protocol, &transport_data, &icmp_header);
in6_addr dst;
memcpy(&dst, &packet->data()[kIPv6DestinationOffset], kIPv6AddressSize);
switch (result) {
case ProcessingResult::OK:
switch (direction) {
case Direction::FROM_OFF_NETWORK:
output_->SendPacketToNetwork(*packet);
break;
case Direction::FROM_NETWORK:
output_->SendPacketToClient(*packet);
break;
}
stats_->OnPacketForwarded(direction, traffic_class);
break;
case ProcessingResult::SILENT_DROP:
stats_->OnPacketDroppedSilently(direction, traffic_class);
break;
case ProcessingResult::ICMP:
if (icmp_header.icmp6_type == ICMP6_ECHO_REPLY) {
auto icmp_body = absl::string_view(*packet).substr(sizeof(ip6_hdr) +
sizeof(icmp6_hdr));
SendIcmpResponse(dst, &icmp_header, icmp_body, direction);
} else {
SendIcmpResponse(dst, &icmp_header, *packet, direction);
}
stats_->OnPacketDroppedWithIcmp(direction, traffic_class);
break;
case ProcessingResult::ICMP_AND_TCP_RESET:
SendIcmpResponse(dst, &icmp_header, *packet, direction);
stats_->OnPacketDroppedWithIcmp(direction, traffic_class);
SendTcpReset(*packet, direction);
stats_->OnPacketDroppedWithTcpReset(direction, traffic_class);
break;
case ProcessingResult::TCP_RESET:
SendTcpReset(*packet, direction);
stats_->OnPacketDroppedWithTcpReset(direction, traffic_class);
break;
}
}
QbonePacketProcessor::ProcessingResult
QbonePacketProcessor::ProcessIPv6HeaderAndFilter(std::string* packet,
Direction direction,
uint8_t* transport_protocol,
char** transport_data,
icmp6_hdr* icmp_header) {
ProcessingResult result = ProcessIPv6Header(
packet, direction, transport_protocol, transport_data, icmp_header);
if (result == ProcessingResult::OK) {
char* packet_data = &*packet->begin();
size_t header_size = *transport_data - packet_data;
if (packet_data >= *transport_data || header_size > packet->size() ||
header_size < kIPv6HeaderSize) {
QUIC_BUG(quic_bug_11024_2)
<< "Invalid pointers encountered in "
"QbonePacketProcessor::ProcessPacket. Dropping the packet";
return ProcessingResult::SILENT_DROP;
}
result = filter_->FilterPacket(
direction, *packet,
absl::string_view(*transport_data, packet->size() - header_size),
icmp_header);
}
if (result == ProcessingResult::ICMP) {
const uint8_t* header = reinterpret_cast<const uint8_t*>(packet->data());
constexpr size_t kIPv6NextHeaderOffset = 6;
constexpr size_t kIcmpMessageTypeOffset = kIPv6HeaderSize + 0;
constexpr size_t kIcmpMessageTypeMaxError = 127;
if (
packet->size() >= (kIPv6HeaderSize + kICMPv6HeaderSize) &&
header[kIPv6NextHeaderOffset] == IPPROTO_ICMPV6 &&
header[kIcmpMessageTypeOffset] < kIcmpMessageTypeMaxError) {
result = ProcessingResult::SILENT_DROP;
}
}
return result;
}
QbonePacketProcessor::ProcessingResult QbonePacketProcessor::ProcessIPv6Header(
std::string* packet, Direction direction, uint8_t* transport_protocol,
char** transport_data, icmp6_hdr* icmp_header) {
if (packet->size() < kIPv6HeaderSize) {
QUIC_DVLOG(1) << "Dropped malformed packet: IPv6 header too short";
return ProcessingResult::SILENT_DROP;
}
ip6_hdr* header = reinterpret_cast<ip6_hdr*>(&*packet->begin());
if (header->ip6_vfc >> 4 != 6) {
QUIC_DVLOG(1) << "Dropped malformed packet: IP version is not IPv6";
return ProcessingResult::SILENT_DROP;
}
const size_t declared_payload_size =
quiche::QuicheEndian::NetToHost16(header->ip6_plen);
const size_t actual_payload_size = packet->size() - kIPv6HeaderSize;
if (declared_payload_size != actual_payload_size) {
QUIC_DVLOG(1)
<< "Dropped malformed packet: incorrect packet length specified";
return ProcessingResult::SILENT_DROP;
}
QuicIpAddress address_to_check;
uint8_t address_reject_code;
bool ip_parse_result;
switch (direction) {
case Direction::FROM_OFF_NETWORK:
ip_parse_result = address_to_check.FromPackedString(
reinterpret_cast<const char*>(&header->ip6_src),
sizeof(header->ip6_src));
address_reject_code = kICMPv6DestinationUnreachableDueToSourcePolicy;
break;
case Direction::FROM_NETWORK:
ip_parse_result = address_to_check.FromPackedString(
reinterpret_cast<const char*>(&header->ip6_dst),
sizeof(header->ip6_src));
address_reject_code = ICMP6_DST_UNREACH_NOROUTE;
break;
}
QUICHE_DCHECK(ip_parse_result);
if (!client_ip_.InSameSubnet(address_to_check, client_ip_subnet_length_)) {
QUIC_DVLOG(1)
<< "Dropped packet: source/destination address is not client's";
icmp_header->icmp6_type = ICMP6_DST_UNREACH;
icmp_header->icmp6_code = address_reject_code;
return ProcessingResult::ICMP;
}
if (header->ip6_hops <= 1) {
icmp_header->icmp6_type = ICMP6_TIME_EXCEEDED;
icmp_header->icmp6_code = ICMP6_TIME_EXCEED_TRANSIT;
return ProcessingResult::ICMP;
}
header->ip6_hops--;
switch (header->ip6_nxt) {
case IPPROTO_TCP:
case IPPROTO_UDP:
case IPPROTO_ICMPV6:
*transport_protocol = header->ip6_nxt;
*transport_data = (&*packet->begin()) + kIPv6HeaderSize;
break;
default:
icmp_header->icmp6_type = ICMP6_PARAM_PROB;
icmp_header->icmp6_code = ICMP6_PARAMPROB_NEXTHEADER;
return ProcessingResult::ICMP;
}
return ProcessingResult::OK;
}
void QbonePacketProcessor::SendIcmpResponse(in6_addr dst,
icmp6_hdr* icmp_header,
absl::string_view payload,
Direction original_direction) {
CreateIcmpPacket(self_ip_, dst, *icmp_header, payload,
[this, original_direction](absl::string_view packet) {
SendResponse(original_direction, packet);
});
}
void QbonePacketProcessor::SendTcpReset(absl::string_view original_packet,
Direction original_direction) {
CreateTcpResetPacket(original_packet,
[this, original_direction](absl::string_view packet) {
SendResponse(original_direction, packet);
});
}
void QbonePacketProcessor::SendResponse(Direction original_direction,
absl::string_view packet) {
switch (original_direction) {
case Direction::FROM_OFF_NETWORK:
output_->SendPacketToClient(packet);
break;
case Direction::FROM_NETWORK:
output_->SendPacketToNetwork(packet);
break;
}
}
uint8_t QbonePacketProcessor::TrafficClassFromHeader(
absl::string_view ipv6_header) {
if (ipv6_header.length() < 2) {
return 0;
}
return ipv6_header[0] << 4 | ipv6_header[1] >> 4;
}
} | #include "quiche/quic/qbone/qbone_packet_processor.h"
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/qbone_packet_processor_test_tools.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic::test {
namespace {
using Direction = QbonePacketProcessor::Direction;
using ProcessingResult = QbonePacketProcessor::ProcessingResult;
using OutputInterface = QbonePacketProcessor::OutputInterface;
using ::testing::_;
using ::testing::Eq;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::WithArgs;
static const char kReferenceClientPacketData[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceClientPacketDataAF4[] = {
0x68, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceClientPacketDataAF3[] = {
0x66, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceClientPacketDataAF2[] = {
0x64, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceClientPacketDataAF1[] = {
0x62, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceNetworkPacketData[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x01, 0xbb,
0x30, 0x39,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceClientSubnetPacketData[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x08,
17,
50,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x30, 0x39,
0x01, 0xbb,
0x00, 0x00,
0x00, 0x00,
};
static const char kReferenceEchoRequestData[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 64,
58,
127,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x71, 0x62, 0x6f, 0x6e, 0x6f,
128,
0,
0x00, 0x00,
0xca, 0xfe,
0x00, 0x01,
0x67, 0x37, 0x8a, 0x63, 0x00, 0x00, 0x00, 0x00,
0x96, 0x58, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
};
static const char kReferenceEchoReplyData[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 64,
58,
255,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
129,
0,
0x66, 0xb6,
0xca, 0xfe,
0x00, 0x01,
0x67, 0x37, 0x8a, 0x63, 0x00, 0x00, 0x00, 0x00,
0x96, 0x58, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
};
static const absl::string_view kReferenceClientPacket(
kReferenceClientPacketData, ABSL_ARRAYSIZE(kReferenceClientPacketData));
static const absl::string_view kReferenceClientPacketAF4(
kReferenceClientPacketDataAF4,
ABSL_ARRAYSIZE(kReferenceClientPacketDataAF4));
static const absl::string_view kReferenceClientPacketAF3(
kReferenceClientPacketDataAF3,
ABSL_ARRAYSIZE(kReferenceClientPacketDataAF3));
static const absl::string_view kReferenceClientPacketAF2(
kReferenceClientPacketDataAF2,
ABSL_ARRAYSIZE(kReferenceClientPacketDataAF2));
static const absl::string_view kReferenceClientPacketAF1(
kReferenceClientPacketDataAF1,
ABSL_ARRAYSIZE(kReferenceClientPacketDataAF1));
static const absl::string_view kReferenceNetworkPacket(
kReferenceNetworkPacketData, ABSL_ARRAYSIZE(kReferenceNetworkPacketData));
static const absl::string_view kReferenceClientSubnetPacket(
kReferenceClientSubnetPacketData,
ABSL_ARRAYSIZE(kReferenceClientSubnetPacketData));
static const absl::string_view kReferenceEchoRequest(
kReferenceEchoRequestData, ABSL_ARRAYSIZE(kReferenceEchoRequestData));
MATCHER_P(IsIcmpMessage, icmp_type,
"Checks whether the argument is an ICMP message of supplied type") {
if (arg.size() < kTotalICMPv6HeaderSize) {
return false;
}
return arg[40] == icmp_type;
}
class MockPacketFilter : public QbonePacketProcessor::Filter {
public:
MOCK_METHOD(ProcessingResult, FilterPacket,
(Direction, absl::string_view, absl::string_view, icmp6_hdr*),
(override));
};
class QbonePacketProcessorTest : public QuicTest {
protected:
QbonePacketProcessorTest() {
QUICHE_CHECK(client_ip_.FromString("fd00:0:0:1::1"));
QUICHE_CHECK(self_ip_.FromString("fd00:0:0:4::1"));
QUICHE_CHECK(network_ip_.FromString("fd00:0:0:5::1"));
processor_ = std::make_unique<QbonePacketProcessor>(
self_ip_, client_ip_, 62, &output_,
&stats_);
EXPECT_CALL(stats_, RecordThroughput(_, _, _)).WillRepeatedly(Return());
}
void SendPacketFromClient(absl::string_view packet) {
std::string packet_buffer(packet.data(), packet.size());
processor_->ProcessPacket(&packet_buffer, Direction::FROM_OFF_NETWORK);
}
void SendPacketFromNetwork(absl::string_view packet) {
std::string packet_buffer(packet.data(), packet.size());
processor_->ProcessPacket(&packet_buffer, Direction::FROM_NETWORK);
}
QuicIpAddress client_ip_;
QuicIpAddress self_ip_;
QuicIpAddress network_ip_;
std::unique_ptr<QbonePacketProcessor> processor_;
testing::StrictMock<MockPacketProcessorOutput> output_;
testing::StrictMock<MockPacketProcessorStats> stats_;
};
TEST_F(QbonePacketProcessorTest, EmptyPacket) {
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(stats_, RecordThroughput(0, Direction::FROM_OFF_NETWORK, _));
SendPacketFromClient("");
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_NETWORK, _));
EXPECT_CALL(stats_, RecordThroughput(0, Direction::FROM_NETWORK, _));
SendPacketFromNetwork("");
}
TEST_F(QbonePacketProcessorTest, RandomGarbage) {
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_OFF_NETWORK, _));
SendPacketFromClient(std::string(1280, 'a'));
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_NETWORK, _));
SendPacketFromNetwork(std::string(1280, 'a'));
}
TEST_F(QbonePacketProcessorTest, RandomGarbageWithCorrectLengthFields) {
std::string packet(40, 'a');
packet[4] = 0;
packet[5] = 0;
EXPECT_CALL(stats_, OnPacketDroppedWithIcmp(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(output_, SendPacketToClient(IsIcmpMessage(ICMP6_DST_UNREACH)));
SendPacketFromClient(packet);
}
TEST_F(QbonePacketProcessorTest, GoodPacketFromClient) {
EXPECT_CALL(stats_, OnPacketForwarded(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(output_, SendPacketToNetwork(_));
SendPacketFromClient(kReferenceClientPacket);
}
TEST_F(QbonePacketProcessorTest, GoodPacketFromClientSubnet) {
EXPECT_CALL(stats_, OnPacketForwarded(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(output_, SendPacketToNetwork(_));
SendPacketFromClient(kReferenceClientSubnetPacket);
}
TEST_F(QbonePacketProcessorTest, GoodPacketFromNetwork) {
EXPECT_CALL(stats_, OnPacketForwarded(Direction::FROM_NETWORK, _));
EXPECT_CALL(output_, SendPacketToClient(_));
SendPacketFromNetwork(kReferenceNetworkPacket);
}
TEST_F(QbonePacketProcessorTest, GoodPacketFromNetworkWrongDirection) {
EXPECT_CALL(stats_, OnPacketDroppedWithIcmp(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(output_, SendPacketToClient(IsIcmpMessage(ICMP6_DST_UNREACH)));
SendPacketFromClient(kReferenceNetworkPacket);
}
TEST_F(QbonePacketProcessorTest, TtlExpired) {
std::string packet(kReferenceNetworkPacket);
packet[7] = 1;
EXPECT_CALL(stats_, OnPacketDroppedWithIcmp(Direction::FROM_NETWORK, _));
EXPECT_CALL(output_, SendPacketToNetwork(IsIcmpMessage(ICMP6_TIME_EXCEEDED)));
SendPacketFromNetwork(packet);
}
TEST_F(QbonePacketProcessorTest, UnknownProtocol) {
std::string packet(kReferenceNetworkPacket);
packet[6] = IPPROTO_SCTP;
EXPECT_CALL(stats_, OnPacketDroppedWithIcmp(Direction::FROM_NETWORK, _));
EXPECT_CALL(output_, SendPacketToNetwork(IsIcmpMessage(ICMP6_PARAM_PROB)));
SendPacketFromNetwork(packet);
}
TEST_F(QbonePacketProcessorTest, FilterFromClient) {
auto filter = std::make_unique<MockPacketFilter>();
EXPECT_CALL(*filter, FilterPacket(_, _, _, _))
.WillRepeatedly(Return(ProcessingResult::SILENT_DROP));
processor_->set_filter(std::move(filter));
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_OFF_NETWORK, _));
SendPacketFromClient(kReferenceClientPacket);
}
class TestFilter : public QbonePacketProcessor::Filter {
public:
TestFilter(QuicIpAddress client_ip, QuicIpAddress network_ip)
: client_ip_(client_ip), network_ip_(network_ip) {}
ProcessingResult FilterPacket(Direction direction,
absl::string_view full_packet,
absl::string_view payload,
icmp6_hdr* icmp_header) override {
EXPECT_EQ(kIPv6HeaderSize, full_packet.size() - payload.size());
EXPECT_EQ(IPPROTO_UDP, TransportProtocolFromHeader(full_packet));
EXPECT_EQ(client_ip_, SourceIpFromHeader(full_packet));
EXPECT_EQ(network_ip_, DestinationIpFromHeader(full_packet));
last_tos_ = QbonePacketProcessor::TrafficClassFromHeader(full_packet);
called_++;
return ProcessingResult::SILENT_DROP;
}
int called() const { return called_; }
uint8_t last_tos() const { return last_tos_; }
private:
int called_ = 0;
uint8_t last_tos_ = 0;
QuicIpAddress client_ip_;
QuicIpAddress network_ip_;
};
TEST_F(QbonePacketProcessorTest, FilterHelperFunctions) {
auto filter_owned = std::make_unique<TestFilter>(client_ip_, network_ip_);
TestFilter* filter = filter_owned.get();
processor_->set_filter(std::move(filter_owned));
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_OFF_NETWORK, _));
SendPacketFromClient(kReferenceClientPacket);
ASSERT_EQ(1, filter->called());
}
TEST_F(QbonePacketProcessorTest, FilterHelperFunctionsTOS) {
auto filter_owned = std::make_unique<TestFilter>(client_ip_, network_ip_);
processor_->set_filter(std::move(filter_owned));
EXPECT_CALL(stats_, OnPacketDroppedSilently(Direction::FROM_OFF_NETWORK, _))
.Times(testing::AnyNumber());
EXPECT_CALL(stats_, RecordThroughput(kReferenceClientPacket.size(),
Direction::FROM_OFF_NETWORK, 0));
SendPacketFromClient(kReferenceClientPacket);
EXPECT_CALL(stats_, RecordThroughput(kReferenceClientPacketAF4.size(),
Direction::FROM_OFF_NETWORK, 0x80));
SendPacketFromClient(kReferenceClientPacketAF4);
EXPECT_CALL(stats_, RecordThroughput(kReferenceClientPacketAF3.size(),
Direction::FROM_OFF_NETWORK, 0x60));
SendPacketFromClient(kReferenceClientPacketAF3);
EXPECT_CALL(stats_, RecordThroughput(kReferenceClientPacketAF2.size(),
Direction::FROM_OFF_NETWORK, 0x40));
SendPacketFromClient(kReferenceClientPacketAF2);
EXPECT_CALL(stats_, RecordThroughput(kReferenceClientPacketAF1.size(),
Direction::FROM_OFF_NETWORK, 0x20));
SendPacketFromClient(kReferenceClientPacketAF1);
}
TEST_F(QbonePacketProcessorTest, Icmp6EchoResponseHasRightPayload) {
auto filter = std::make_unique<MockPacketFilter>();
EXPECT_CALL(*filter, FilterPacket(_, _, _, _))
.WillOnce(WithArgs<2, 3>(
Invoke([](absl::string_view payload, icmp6_hdr* icmp_header) {
icmp_header->icmp6_type = ICMP6_ECHO_REPLY;
icmp_header->icmp6_code = 0;
auto* request_header =
reinterpret_cast<const icmp6_hdr*>(payload.data());
icmp_header->icmp6_id = request_header->icmp6_id;
icmp_header->icmp6_seq = request_header->icmp6_seq;
return ProcessingResult::ICMP;
})));
processor_->set_filter(std::move(filter));
EXPECT_CALL(stats_, OnPacketDroppedWithIcmp(Direction::FROM_OFF_NETWORK, _));
EXPECT_CALL(output_, SendPacketToClient(_))
.WillOnce(Invoke([](absl::string_view packet) {
absl::string_view expected = absl::string_view(
kReferenceEchoReplyData, sizeof(kReferenceEchoReplyData));
EXPECT_THAT(packet, Eq(expected));
QUIC_LOG(INFO) << "ICMP response:\n"
<< quiche::QuicheTextUtils::HexDump(packet);
}));
SendPacketFromClient(kReferenceEchoRequest);
}
}
} |
215 | cpp | google/quiche | qbone_packet_exchanger | quiche/quic/qbone/qbone_packet_exchanger.cc | quiche/quic/qbone/qbone_packet_exchanger_test.cc | #ifndef QUICHE_QUIC_QBONE_QBONE_PACKET_EXCHANGER_H_
#define QUICHE_QUIC_QBONE_QBONE_PACKET_EXCHANGER_H_
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/qbone/qbone_client_interface.h"
#include "quiche/quic/qbone/qbone_packet_writer.h"
namespace quic {
class QbonePacketExchanger : public QbonePacketWriter {
public:
class Visitor {
public:
virtual ~Visitor() {}
virtual void OnReadError(const std::string& error) {}
virtual void OnWriteError(const std::string& error) {}
};
QbonePacketExchanger(Visitor* visitor, size_t max_pending_packets)
: visitor_(visitor), max_pending_packets_(max_pending_packets) {}
QbonePacketExchanger(const QbonePacketExchanger&) = delete;
QbonePacketExchanger& operator=(const QbonePacketExchanger&) = delete;
QbonePacketExchanger(QbonePacketExchanger&&) = delete;
QbonePacketExchanger& operator=(QbonePacketExchanger&&) = delete;
~QbonePacketExchanger() = default;
bool ReadAndDeliverPacket(QboneClientInterface* qbone_client);
void WritePacketToNetwork(const char* packet, size_t size) override;
void SetWritable();
private:
virtual std::unique_ptr<QuicData> ReadPacket(bool* blocked,
std::string* error) = 0;
virtual bool WritePacket(const char* packet, size_t size, bool* blocked,
std::string* error) = 0;
std::list<std::unique_ptr<QuicData>> packet_queue_;
Visitor* visitor_;
size_t max_pending_packets_;
bool write_blocked_ = false;
};
}
#endif
#include "quiche/quic/qbone/qbone_packet_exchanger.h"
#include <memory>
#include <string>
#include <utility>
namespace quic {
bool QbonePacketExchanger::ReadAndDeliverPacket(
QboneClientInterface* qbone_client) {
bool blocked = false;
std::string error;
std::unique_ptr<QuicData> packet = ReadPacket(&blocked, &error);
if (packet == nullptr) {
if (!blocked && visitor_) {
visitor_->OnReadError(error);
}
return false;
}
qbone_client->ProcessPacketFromNetwork(packet->AsStringPiece());
return true;
}
void QbonePacketExchanger::WritePacketToNetwork(const char* packet,
size_t size) {
bool blocked = false;
std::string error;
if (packet_queue_.empty() && !write_blocked_) {
if (WritePacket(packet, size, &blocked, &error)) {
return;
}
if (blocked) {
write_blocked_ = true;
} else {
QUIC_LOG_EVERY_N_SEC(ERROR, 60) << "Packet write failed: " << error;
if (visitor_) {
visitor_->OnWriteError(error);
}
}
}
if (packet_queue_.size() >= max_pending_packets_) {
return;
}
auto data_copy = new char[size];
memcpy(data_copy, packet, size);
packet_queue_.push_back(
std::make_unique<QuicData>(data_copy, size, true));
}
void QbonePacketExchanger::SetWritable() {
write_blocked_ = false;
while (!packet_queue_.empty()) {
bool blocked = false;
std::string error;
if (WritePacket(packet_queue_.front()->data(),
packet_queue_.front()->length(), &blocked, &error)) {
packet_queue_.pop_front();
} else {
if (!blocked && visitor_) {
visitor_->OnWriteError(error);
}
write_blocked_ = blocked;
return;
}
}
}
} | #include "quiche/quic/qbone/qbone_packet_exchanger.h"
#include <list>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/mock_qbone_client.h"
namespace quic {
namespace {
using ::testing::StrEq;
using ::testing::StrictMock;
const size_t kMaxPendingPackets = 2;
class MockVisitor : public QbonePacketExchanger::Visitor {
public:
MOCK_METHOD(void, OnReadError, (const std::string&), (override));
MOCK_METHOD(void, OnWriteError, (const std::string&), (override));
};
class FakeQbonePacketExchanger : public QbonePacketExchanger {
public:
using QbonePacketExchanger::QbonePacketExchanger;
void AddPacketToBeRead(std::unique_ptr<QuicData> packet) {
packets_to_be_read_.push_back(std::move(packet));
}
void SetReadError(const std::string& error) { read_error_ = error; }
void ForceWriteFailure(bool blocked, const std::string& error) {
write_blocked_ = blocked;
write_error_ = error;
}
const std::vector<std::string>& packets_written() const {
return packets_written_;
}
private:
std::unique_ptr<QuicData> ReadPacket(bool* blocked,
std::string* error) override {
*blocked = false;
if (packets_to_be_read_.empty()) {
*blocked = read_error_.empty();
*error = read_error_;
return nullptr;
}
std::unique_ptr<QuicData> packet = std::move(packets_to_be_read_.front());
packets_to_be_read_.pop_front();
return packet;
}
bool WritePacket(const char* packet, size_t size, bool* blocked,
std::string* error) override {
*blocked = false;
if (write_blocked_ || !write_error_.empty()) {
*blocked = write_blocked_;
*error = write_error_;
return false;
}
packets_written_.push_back(std::string(packet, size));
return true;
}
std::string read_error_;
std::list<std::unique_ptr<QuicData>> packets_to_be_read_;
std::string write_error_;
bool write_blocked_ = false;
std::vector<std::string> packets_written_;
};
TEST(QbonePacketExchangerTest,
ReadAndDeliverPacketDeliversPacketToQboneClient) {
StrictMock<MockVisitor> visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
StrictMock<MockQboneClient> client;
std::string packet = "data";
exchanger.AddPacketToBeRead(
std::make_unique<QuicData>(packet.data(), packet.length()));
EXPECT_CALL(client, ProcessPacketFromNetwork(StrEq("data")));
EXPECT_TRUE(exchanger.ReadAndDeliverPacket(&client));
}
TEST(QbonePacketExchangerTest,
ReadAndDeliverPacketNotifiesVisitorOnReadFailure) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
std::string io_error = "I/O error";
exchanger.SetReadError(io_error);
EXPECT_CALL(visitor, OnReadError(StrEq(io_error))).Times(1);
EXPECT_FALSE(exchanger.ReadAndDeliverPacket(&client));
}
TEST(QbonePacketExchangerTest,
ReadAndDeliverPacketDoesNotNotifyVisitorOnBlockedIO) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
EXPECT_FALSE(exchanger.ReadAndDeliverPacket(&client));
}
TEST(QbonePacketExchangerTest,
WritePacketToNetworkWritesDirectlyToNetworkWhenNotBlocked) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
std::string packet = "data";
exchanger.WritePacketToNetwork(packet.data(), packet.length());
ASSERT_EQ(exchanger.packets_written().size(), 1);
EXPECT_THAT(exchanger.packets_written()[0], StrEq(packet));
}
TEST(QbonePacketExchangerTest,
WritePacketToNetworkQueuesPacketsAndProcessThemLater) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
exchanger.ForceWriteFailure(true, "");
std::vector<std::string> packets = {"packet0", "packet1"};
for (int i = 0; i < packets.size(); i++) {
exchanger.WritePacketToNetwork(packets[i].data(), packets[i].length());
}
ASSERT_TRUE(exchanger.packets_written().empty());
exchanger.ForceWriteFailure(false, "");
exchanger.SetWritable();
ASSERT_EQ(exchanger.packets_written().size(), 2);
for (int i = 0; i < packets.size(); i++) {
EXPECT_THAT(exchanger.packets_written()[i], StrEq(packets[i]));
}
}
TEST(QbonePacketExchangerTest,
SetWritableContinuesProcessingPacketIfPreviousCallBlocked) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
exchanger.ForceWriteFailure(true, "");
std::vector<std::string> packets = {"packet0", "packet1"};
for (int i = 0; i < packets.size(); i++) {
exchanger.WritePacketToNetwork(packets[i].data(), packets[i].length());
}
ASSERT_TRUE(exchanger.packets_written().empty());
exchanger.SetWritable();
ASSERT_TRUE(exchanger.packets_written().empty());
exchanger.ForceWriteFailure(false, "");
exchanger.SetWritable();
ASSERT_EQ(exchanger.packets_written().size(), 2);
for (int i = 0; i < packets.size(); i++) {
EXPECT_THAT(exchanger.packets_written()[i], StrEq(packets[i]));
}
}
TEST(QbonePacketExchangerTest, WritePacketToNetworkDropsPacketIfQueueIfFull) {
std::vector<std::string> packets = {"packet0", "packet1", "packet2"};
size_t queue_size = packets.size() - 1;
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, queue_size);
MockQboneClient client;
exchanger.ForceWriteFailure(true, "");
for (int i = 0; i < packets.size(); i++) {
exchanger.WritePacketToNetwork(packets[i].data(), packets[i].length());
}
ASSERT_TRUE(exchanger.packets_written().empty());
exchanger.ForceWriteFailure(false, "");
exchanger.SetWritable();
ASSERT_EQ(exchanger.packets_written().size(), queue_size);
for (int i = 0; i < queue_size; i++) {
EXPECT_THAT(exchanger.packets_written()[i], StrEq(packets[i]));
}
}
TEST(QbonePacketExchangerTest, WriteErrorsGetNotified) {
MockVisitor visitor;
FakeQbonePacketExchanger exchanger(&visitor, kMaxPendingPackets);
MockQboneClient client;
std::string packet = "data";
std::string io_error = "I/O error";
exchanger.ForceWriteFailure(false, io_error);
EXPECT_CALL(visitor, OnWriteError(StrEq(io_error))).Times(1);
exchanger.WritePacketToNetwork(packet.data(), packet.length());
ASSERT_TRUE(exchanger.packets_written().empty());
exchanger.ForceWriteFailure(true, "");
exchanger.WritePacketToNetwork(packet.data(), packet.length());
std::string sys_error = "sys error";
exchanger.ForceWriteFailure(false, sys_error);
EXPECT_CALL(visitor, OnWriteError(StrEq(sys_error))).Times(1);
exchanger.SetWritable();
ASSERT_TRUE(exchanger.packets_written().empty());
}
TEST(QbonePacketExchangerTest, NullVisitorDoesntCrash) {
FakeQbonePacketExchanger exchanger(nullptr, kMaxPendingPackets);
MockQboneClient client;
std::string packet = "data";
std::string io_error = "I/O error";
exchanger.SetReadError(io_error);
EXPECT_FALSE(exchanger.ReadAndDeliverPacket(&client));
exchanger.ForceWriteFailure(false, io_error);
exchanger.WritePacketToNetwork(packet.data(), packet.length());
EXPECT_TRUE(exchanger.packets_written().empty());
}
}
} |
216 | cpp | google/quiche | netlink | quiche/quic/qbone/platform/netlink.cc | quiche/quic/qbone/platform/netlink_test.cc | #ifndef QUICHE_QUIC_QBONE_PLATFORM_NETLINK_H_
#define QUICHE_QUIC_QBONE_PLATFORM_NETLINK_H_
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <cstdint>
#include <functional>
#include <memory>
#include <string>
#include <vector>
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/qbone/platform/ip_range.h"
#include "quiche/quic/qbone/platform/kernel_interface.h"
#include "quiche/quic/qbone/platform/netlink_interface.h"
namespace quic {
class Netlink : public NetlinkInterface {
public:
explicit Netlink(KernelInterface* kernel);
~Netlink() override;
bool GetLinkInfo(const std::string& interface_name,
LinkInfo* link_info) override;
bool GetAddresses(int interface_index, uint8_t unwanted_flags,
std::vector<AddressInfo>* addresses,
int* num_ipv6_nodad_dadfailed_addresses) override;
bool ChangeLocalAddress(
uint32_t interface_index, Verb verb, const QuicIpAddress& address,
uint8_t prefix_length, uint8_t ifa_flags, uint8_t ifa_scope,
const std::vector<struct rtattr*>& additional_attributes) override;
bool GetRouteInfo(std::vector<RoutingRule>* routing_rules) override;
bool ChangeRoute(Netlink::Verb verb, uint32_t table,
const IpRange& destination_subnet, uint8_t scope,
QuicIpAddress preferred_source,
int32_t interface_index) override;
bool GetRuleInfo(std::vector<Netlink::IpRule>* ip_rules) override;
bool ChangeRule(Verb verb, uint32_t table, IpRange source_range) override;
bool Send(struct iovec* iov, size_t iovlen) override;
bool Recv(uint32_t seq, NetlinkParserInterface* parser) override;
private:
void ResetRecvBuf(size_t size);
bool OpenSocket();
void CloseSocket();
KernelInterface* kernel_;
int socket_fd_ = -1;
std::unique_ptr<char[]> recvbuf_ = nullptr;
size_t recvbuf_length_ = 0;
uint32_t seq_;
};
}
#endif
#include "quiche/quic/qbone/platform/netlink.h"
#include <linux/fib_rules.h>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/attributes.h"
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/qbone/platform/rtnetlink_message.h"
#include "quiche/quic/qbone/qbone_constants.h"
namespace quic {
Netlink::Netlink(KernelInterface* kernel) : kernel_(kernel) {
seq_ = QuicRandom::GetInstance()->RandUint64();
}
Netlink::~Netlink() { CloseSocket(); }
void Netlink::ResetRecvBuf(size_t size) {
if (size != 0) {
recvbuf_ = std::make_unique<char[]>(size);
} else {
recvbuf_ = nullptr;
}
recvbuf_length_ = size;
}
bool Netlink::OpenSocket() {
if (socket_fd_ >= 0) {
return true;
}
socket_fd_ = kernel_->socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (socket_fd_ < 0) {
QUIC_PLOG(ERROR) << "can't open netlink socket";
return false;
}
QUIC_LOG(INFO) << "Opened a new netlink socket fd = " << socket_fd_;
sockaddr_nl myaddr;
memset(&myaddr, 0, sizeof(myaddr));
myaddr.nl_family = AF_NETLINK;
if (kernel_->bind(socket_fd_, reinterpret_cast<struct sockaddr*>(&myaddr),
sizeof(myaddr)) < 0) {
QUIC_LOG(INFO) << "can't bind address to socket";
CloseSocket();
return false;
}
return true;
}
void Netlink::CloseSocket() {
if (socket_fd_ >= 0) {
QUIC_LOG(INFO) << "Closing netlink socket fd = " << socket_fd_;
kernel_->close(socket_fd_);
}
ResetRecvBuf(0);
socket_fd_ = -1;
}
namespace {
class LinkInfoParser : public NetlinkParserInterface {
public:
LinkInfoParser(std::string interface_name, Netlink::LinkInfo* link_info)
: interface_name_(std::move(interface_name)), link_info_(link_info) {}
void Run(struct nlmsghdr* netlink_message) override {
if (netlink_message->nlmsg_type != RTM_NEWLINK) {
QUIC_LOG(INFO) << absl::StrCat(
"Unexpected nlmsg_type: ", netlink_message->nlmsg_type,
" expected: ", RTM_NEWLINK);
return;
}
struct ifinfomsg* interface_info =
reinterpret_cast<struct ifinfomsg*>(NLMSG_DATA(netlink_message));
if (interface_info->ifi_family != AF_UNSPEC) {
QUIC_LOG(INFO) << absl::StrCat(
"Unexpected ifi_family: ", interface_info->ifi_family,
" expected: ", AF_UNSPEC);
return;
}
char hardware_address[kHwAddrSize];
size_t hardware_address_length = 0;
char broadcast_address[kHwAddrSize];
size_t broadcast_address_length = 0;
std::string name;
struct rtattr* rta;
int payload_length = IFLA_PAYLOAD(netlink_message);
for (rta = IFLA_RTA(interface_info); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
int attribute_length;
switch (rta->rta_type) {
case IFLA_ADDRESS: {
attribute_length = RTA_PAYLOAD(rta);
if (attribute_length > kHwAddrSize) {
QUIC_VLOG(2) << "IFLA_ADDRESS too long: " << attribute_length;
break;
}
memmove(hardware_address, RTA_DATA(rta), attribute_length);
hardware_address_length = attribute_length;
break;
}
case IFLA_BROADCAST: {
attribute_length = RTA_PAYLOAD(rta);
if (attribute_length > kHwAddrSize) {
QUIC_VLOG(2) << "IFLA_BROADCAST too long: " << attribute_length;
break;
}
memmove(broadcast_address, RTA_DATA(rta), attribute_length);
broadcast_address_length = attribute_length;
break;
}
case IFLA_IFNAME: {
name = std::string(reinterpret_cast<char*>(RTA_DATA(rta)),
RTA_PAYLOAD(rta));
name = name.substr(0, name.find('\0'));
break;
}
}
}
QUIC_VLOG(2) << "interface name: " << name
<< ", index: " << interface_info->ifi_index;
if (name == interface_name_) {
link_info_->index = interface_info->ifi_index;
link_info_->type = interface_info->ifi_type;
link_info_->hardware_address_length = hardware_address_length;
if (hardware_address_length > 0) {
memmove(&link_info_->hardware_address, hardware_address,
hardware_address_length);
}
link_info_->broadcast_address_length = broadcast_address_length;
if (broadcast_address_length > 0) {
memmove(&link_info_->broadcast_address, broadcast_address,
broadcast_address_length);
}
found_link_ = true;
}
}
bool found_link() { return found_link_; }
private:
const std::string interface_name_;
Netlink::LinkInfo* const link_info_;
bool found_link_ = false;
};
}
bool Netlink::GetLinkInfo(const std::string& interface_name,
LinkInfo* link_info) {
auto message = LinkMessage::New(RtnetlinkMessage::Operation::GET,
NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
seq_, getpid(), nullptr);
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed.";
return false;
}
LinkInfoParser parser(interface_name, link_info);
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "recv failed.";
return false;
}
return parser.found_link();
}
namespace {
class LocalAddressParser : public NetlinkParserInterface {
public:
LocalAddressParser(int interface_index, uint8_t unwanted_flags,
std::vector<Netlink::AddressInfo>* local_addresses,
int* num_ipv6_nodad_dadfailed_addresses)
: interface_index_(interface_index),
unwanted_flags_(unwanted_flags),
local_addresses_(local_addresses),
num_ipv6_nodad_dadfailed_addresses_(
num_ipv6_nodad_dadfailed_addresses) {}
void Run(struct nlmsghdr* netlink_message) override {
if (netlink_message->nlmsg_type != RTM_NEWADDR) {
QUIC_LOG(INFO) << "Unexpected nlmsg_type: " << netlink_message->nlmsg_type
<< " expected: " << RTM_NEWADDR;
return;
}
struct ifaddrmsg* interface_address =
reinterpret_cast<struct ifaddrmsg*>(NLMSG_DATA(netlink_message));
if (interface_address->ifa_family != AF_INET &&
interface_address->ifa_family != AF_INET6) {
QUIC_VLOG(2) << absl::StrCat("uninteresting ifa family: ",
interface_address->ifa_family);
return;
}
if (num_ipv6_nodad_dadfailed_addresses_ != nullptr &&
(interface_address->ifa_flags & IFA_F_NODAD) &&
(interface_address->ifa_flags & IFA_F_DADFAILED)) {
++(*num_ipv6_nodad_dadfailed_addresses_);
}
uint8_t unwanted_flags = interface_address->ifa_flags & unwanted_flags_;
if (unwanted_flags != 0) {
QUIC_VLOG(2) << absl::StrCat("unwanted ifa flags: ", unwanted_flags);
return;
}
struct rtattr* rta;
int payload_length = IFA_PAYLOAD(netlink_message);
Netlink::AddressInfo address_info;
for (rta = IFA_RTA(interface_address); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
if (rta->rta_type != IFA_LOCAL && rta->rta_type != IFA_ADDRESS) {
QUIC_VLOG(2) << "Ignoring uninteresting rta_type: " << rta->rta_type;
continue;
}
switch (interface_address->ifa_family) {
case AF_INET:
ABSL_FALLTHROUGH_INTENDED;
case AF_INET6:
if (RTA_PAYLOAD(rta) == sizeof(struct in_addr) ||
RTA_PAYLOAD(rta) == sizeof(struct in6_addr)) {
auto* raw_ip = reinterpret_cast<char*>(RTA_DATA(rta));
if (rta->rta_type == IFA_LOCAL) {
address_info.local_address.FromPackedString(raw_ip,
RTA_PAYLOAD(rta));
} else {
address_info.interface_address.FromPackedString(raw_ip,
RTA_PAYLOAD(rta));
}
}
break;
default:
QUIC_LOG(ERROR) << absl::StrCat("Unknown address family: ",
interface_address->ifa_family);
}
}
QUIC_VLOG(2) << "local_address: " << address_info.local_address.ToString()
<< " interface_address: "
<< address_info.interface_address.ToString()
<< " index: " << interface_address->ifa_index;
if (interface_address->ifa_index != interface_index_) {
return;
}
address_info.prefix_length = interface_address->ifa_prefixlen;
address_info.scope = interface_address->ifa_scope;
if (address_info.local_address.IsInitialized() ||
address_info.interface_address.IsInitialized()) {
local_addresses_->push_back(address_info);
}
}
private:
const int interface_index_;
const uint8_t unwanted_flags_;
std::vector<Netlink::AddressInfo>* const local_addresses_;
int* const num_ipv6_nodad_dadfailed_addresses_;
};
}
bool Netlink::GetAddresses(int interface_index, uint8_t unwanted_flags,
std::vector<AddressInfo>* addresses,
int* num_ipv6_nodad_dadfailed_addresses) {
auto message = AddressMessage::New(RtnetlinkMessage::Operation::GET,
NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
seq_, getpid(), nullptr);
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed.";
return false;
}
addresses->clear();
if (num_ipv6_nodad_dadfailed_addresses != nullptr) {
*num_ipv6_nodad_dadfailed_addresses = 0;
}
LocalAddressParser parser(interface_index, unwanted_flags, addresses,
num_ipv6_nodad_dadfailed_addresses);
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "recv failed";
return false;
}
return true;
}
namespace {
class UnknownParser : public NetlinkParserInterface {
public:
void Run(struct nlmsghdr* netlink_message) override {
QUIC_LOG(INFO) << "nlmsg reply type: " << netlink_message->nlmsg_type;
}
};
}
bool Netlink::ChangeLocalAddress(
uint32_t interface_index, Verb verb, const QuicIpAddress& address,
uint8_t prefix_length, uint8_t ifa_flags, uint8_t ifa_scope,
const std::vector<struct rtattr*>& additional_attributes) {
if (verb == Verb::kReplace) {
return false;
}
auto operation = verb == Verb::kAdd ? RtnetlinkMessage::Operation::NEW
: RtnetlinkMessage::Operation::DEL;
uint8_t address_family;
if (address.address_family() == IpAddressFamily::IP_V4) {
address_family = AF_INET;
} else if (address.address_family() == IpAddressFamily::IP_V6) {
address_family = AF_INET6;
} else {
return false;
}
struct ifaddrmsg address_header = {address_family, prefix_length, ifa_flags,
ifa_scope, interface_index};
auto message = AddressMessage::New(operation, NLM_F_REQUEST | NLM_F_ACK, seq_,
getpid(), &address_header);
for (const auto& attribute : additional_attributes) {
if (attribute->rta_type == IFA_LOCAL) {
continue;
}
message.AppendAttribute(attribute->rta_type, RTA_DATA(attribute),
RTA_PAYLOAD(attribute));
}
message.AppendAttribute(IFA_LOCAL, address.ToPackedString().c_str(),
address.ToPackedString().size());
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed";
return false;
}
UnknownParser parser;
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "receive failed.";
return false;
}
return true;
}
namespace {
class RoutingRuleParser : public NetlinkParserInterface {
public:
explicit RoutingRuleParser(std::vector<Netlink::RoutingRule>* routing_rules)
: routing_rules_(routing_rules) {}
void Run(struct nlmsghdr* netlink_message) override {
if (netlink_message->nlmsg_type != RTM_NEWROUTE) {
QUIC_LOG(WARNING) << absl::StrCat(
"Unexpected nlmsg_type: ", netlink_message->nlmsg_type,
" expected: ", RTM_NEWROUTE);
return;
}
auto* route = reinterpret_cast<struct rtmsg*>(NLMSG_DATA(netlink_message));
int payload_length = RTM_PAYLOAD(netlink_message);
if (route->rtm_family != AF_INET && route->rtm_family != AF_INET6) {
QUIC_VLOG(2) << absl::StrCat("Uninteresting family: ", route->rtm_family);
return;
}
Netlink::RoutingRule rule;
rule.scope = route->rtm_scope;
rule.table = route->rtm_table;
struct rtattr* rta;
for (rta = RTM_RTA(route); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case RTA_TABLE: {
rule.table = *reinterpret_cast<uint32_t*>(RTA_DATA(rta));
break;
}
case RTA_DST: {
QuicIpAddress destination;
destination.FromPackedString(reinterpret_cast<char*> RTA_DATA(rta),
RTA_PAYLOAD(rta));
rule.destination_subnet = IpRange(destination, route->rtm_dst_len);
break;
}
case RTA_PREFSRC: {
QuicIpAddress preferred_source;
rule.preferred_source.FromPackedString(
reinterpret_cast<char*> RTA_DATA(rta), RTA_PAYLOAD(rta));
break;
}
case RTA_OIF: {
rule.out_interface = *reinterpret_cast<int*>(RTA_DATA(rta));
break;
}
default: {
QUIC_VLOG(2) << absl::StrCat("Uninteresting attribute: ",
rta->rta_type);
}
}
}
routing_rules_->push_back(rule);
}
private:
std::vector<Netlink::RoutingRule>* routing_rules_;
};
}
bool Netlink::GetRouteInfo(std::vector<Netlink::RoutingRule>* routing_rules) {
rtmsg route_message{};
route_message.rtm_table = RT_TABLE_MAIN;
auto message = RouteMessage::New(RtnetlinkMessage::Operation::GET,
NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH,
seq_, getpid(), &route_message);
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed";
return false;
}
RoutingRuleParser parser(routing_rules);
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "recv failed";
return false;
}
return true;
}
bool Netlink::ChangeRoute(Netlink::Verb verb, uint32_t table,
const IpRange& destination_subnet, uint8_t scope,
QuicIpAddress preferred_source,
int32_t interface_index) {
if (!destination_subnet.prefix().IsInitialized()) {
return false;
}
if (destination_subnet.address_family() != IpAddressFamily::IP_V4 &&
destination_subnet.address_family() != IpAddressFamily::IP_V6) {
return false;
}
if (preferred_source.IsInitialized() &&
preferred_source.address_family() !=
destination_subnet.address_family()) {
return false;
}
RtnetlinkMessage::Operation operation;
uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
switch (verb) {
case Verb::kAdd:
operation = RtnetlinkMessage::Operation::NEW;
flags |= NLM_F_EXCL | NLM_F_CREATE;
break;
case Verb::kRemove:
operation = RtnetlinkMessage::Operation::DEL;
break;
case Verb::kReplace:
operation = RtnetlinkMessage::Operation::NEW;
flags |= NLM_F_REPLACE | NLM_F_CREATE;
break;
}
struct rtmsg route_message;
memset(&route_message, 0, sizeof(route_message));
route_message.rtm_family =
destination_subnet.address_family() == IpAddressFamily::IP_V4 ? AF_INET
: AF_INET6;
route_message.rtm_dst_len = destination_subnet.prefix_length();
route_message.rtm_src_len = 0;
route_message.rtm_table = RT_TABLE_MAIN;
route_message.rtm_protocol =
verb == Verb::kRemove ? RTPROT_UNSPEC : RTPROT_STATIC;
route_message.rtm_scope = scope;
route_message.rtm_type = RTN_UNICAST;
auto message =
RouteMessage::New(operation, flags, seq_, getpid(), &route_message);
message.AppendAttribute(RTA_TABLE, &table, sizeof(table));
message.AppendAttribute(RTA_OIF, &interface_index, sizeof(interface_index));
message.AppendAttribute(
RTA_DST,
reinterpret_cast<const void*>(
destination_subnet.prefix().ToPackedString().c_str()),
destination_subnet.prefix().ToPackedString().size());
if (preferred_source.IsInitialized()) {
auto src_str = preferred_source.ToPackedString();
message.AppendAttribute(RTA_PREFSRC,
reinterpret_cast<const void*>(src_str.c_str()),
src_str.size());
}
if (verb != Verb::kRemove) {
auto gateway_str = QboneConstants::GatewayAddress()->ToPackedString();
message.AppendAttribute(RTA_GATEWAY,
reinterpret_cast<const void*>(gateway_str.c_str()),
gateway_str.size());
}
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed";
return false;
}
UnknownParser parser;
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "receive failed.";
return false;
}
return true;
}
namespace {
class IpRuleParser : public NetlinkParserInterface {
public:
explicit IpRuleParser(std::vector<Netlink::IpRule>* ip_rules)
: ip_rules_(ip_rules) {}
void Run(struct nlmsghdr* netlink_message) override {
if (netlink_message->nlmsg_type != RTM_NEWRULE) {
QUIC_LOG(WARNING) << absl::StrCat(
"Unexpected nlmsg_type: ", netlink_message->nlmsg_type,
" expected: ", RTM_NEWRULE);
return;
}
auto* rule = reinterpret_cast<rtmsg*>(NLMSG_DATA(netlink_message));
int payload_length = RTM_PAYLOAD(netlink_message);
if (rule->rtm_family != AF_INET6) {
QUIC_LOG(ERROR) << absl::StrCat("Unexpected family: ", rule->rtm_family);
return;
}
Netlink::IpRule ip_rule;
ip_rule.table = rule->rtm_table;
struct rtattr* rta;
for (rta = RTM_RTA(rule); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case RTA_TABLE: {
ip_rule.table = *reinterpret_cast<uint32_t*>(RTA_DATA(rta));
break;
}
case RTA_SRC: {
QuicIpAddress src_addr;
src_addr.FromPackedString(reinterpret_cast<char*>(RTA_DATA(rta)),
RTA_PAYLOAD(rta));
IpRange src_range(src_addr, rule->rtm_src_len);
ip_rule.source_range = src_range;
break;
}
default: {
QUIC_VLOG(2) << absl::StrCat("Uninteresting attribute: ",
rta->rta_type);
}
}
}
ip_rules_->emplace_back(ip_rule);
}
private:
std::vector<Netlink::IpRule>* ip_rules_;
};
}
bool Netlink::GetRuleInfo(std::vector<Netlink::IpRule>* ip_rules) {
rtmsg rule_message{};
rule_message.rtm_family = AF_INET6;
auto message = RuleMessage::New(RtnetlinkMessage::Operation::GET,
NLM_F_REQUEST | NLM_F_DUMP, seq_, getpid(),
&rule_message);
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed";
return false;
}
IpRuleParser parser(ip_rules);
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "receive failed.";
return false;
}
return true;
}
bool Netlink::ChangeRule(Verb verb, uint32_t table, IpRange source_range) {
RtnetlinkMessage::Operation operation;
uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
rtmsg rule_message{};
rule_message.rtm_family = AF_INET6;
rule_message.rtm_protocol = RTPROT_STATIC;
rule_message.rtm_scope = RT_SCOPE_UNIVERSE;
rule_message.rtm_table = RT_TABLE_UNSPEC;
rule_message.rtm_flags |= FIB_RULE_FIND_SADDR;
switch (verb) {
case Verb::kAdd:
if (!source_range.IsInitialized()) {
QUIC_LOG(ERROR) << "Source range must be initialized.";
return false;
}
operation = RtnetlinkMessage::Operation::NEW;
flags |= NLM_F_EXCL | NLM_F_CREATE;
rule_message.rtm_type = FRA_DST;
rule_message.rtm_src_len = source_range.prefix_length();
break;
case Verb::kRemove:
operation = RtnetlinkMessage::Operation::DEL;
break;
case Verb::kReplace:
QUIC_LOG(ERROR) << "Unsupported verb: kReplace";
return false;
}
auto message =
RuleMessage::New(operation, flags, seq_, getpid(), &rule_message);
message.AppendAttribute(RTA_TABLE, &table, sizeof(table));
if (source_range.IsInitialized()) {
std::string packed_src = source_range.prefix().ToPackedString();
message.AppendAttribute(RTA_SRC,
reinterpret_cast<const void*>(packed_src.c_str()),
packed_src.size());
}
if (!Send(message.BuildIoVec().get(), message.IoVecSize())) {
QUIC_LOG(ERROR) << "send failed";
return false;
}
UnknownParser parser;
if (!Recv(seq_++, &parser)) {
QUIC_LOG(ERROR) << "receive failed.";
return false;
}
return true;
}
bool Netlink::Send(struct iovec* iov, size_t iovlen) {
if (!OpenSocket()) {
QUIC_LOG(ERROR) << "can't open socket";
return false;
}
sockaddr_nl netlink_address;
memset(&netlink_address, 0, sizeof(netlink_address));
netlink_address.nl_family = AF_NETLINK;
netlink_address.nl_pid = 0;
netlink_address.nl_groups = 0;
struct msghdr msg = {
&netlink_address, sizeof(netlink_address), iov, iovlen, nullptr, 0, 0};
if (kernel_->sendmsg(socket_fd_, &msg, 0) < 0) {
QUIC_LOG(ERROR) << "sendmsg failed";
CloseSocket();
return false;
}
return true;
}
bool Netlink::Recv(uint32_t seq, NetlinkParserInterface* parser) {
sockaddr_nl netlink_address;
for (;;) {
socklen_t address_length = sizeof(netlink_address);
int next_packet_size = kernel_->recvfrom(
socket_fd_, recvbuf_.get(), 0, MSG_PEEK | MSG_TRUNC,
reinterpret_cast<struct sockaddr*>(&netlink_address), &address_length);
if (next_packet_size < 0) {
QUIC_LOG(ERROR)
<< "error recvfrom with MSG_PEEK | MSG_TRUNC to get packet length.";
CloseSocket();
return false;
}
QUIC_VLOG(3) << "netlink packet size: " << next_packet_size;
if (next_packet_size > recvbuf_length_) {
QUIC_VLOG(2) << "resizing recvbuf to " << next_packet_size;
ResetRecvBuf(next_packet_size);
}
memset(recvbuf_.get(), 0, recvbuf_length_);
int len = kernel_->recvfrom(
socket_fd_, recvbuf_.get(), recvbuf_length_, 0,
reinterpret_cast<struct sockaddr*>(&netlink_address), &address_length);
QUIC_VLOG(3) << "recvfrom returned: " << len;
if (len < 0) {
QUIC_LOG(INFO) << "can't receive netlink packet";
CloseSocket();
return false;
}
struct nlmsghdr* netlink_message;
for (netlink_message = reinterpret_cast<struct nlmsghdr*>(recvbuf_.get());
NLMSG_OK(netlink_message, len);
netlink_message = NLMSG_NEXT(netlink_message, len)) {
QUIC_VLOG(3) << "netlink_message->nlmsg_type = "
<< netlink_message->nlmsg_type;
if (netlink_message->nlmsg_seq != seq) {
QUIC_LOG(INFO) << "netlink_message not meant for us."
<< " seq: " << seq
<< " nlmsg_seq: " | #include "quiche/quic/qbone/platform/netlink.h"
#include <functional>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/container/node_hash_set.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/platform/mock_kernel.h"
#include "quiche/quic/qbone/qbone_constants.h"
namespace quic::test {
namespace {
using ::testing::_;
using ::testing::Contains;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::Unused;
const int kSocketFd = 101;
class NetlinkTest : public QuicTest {
protected:
NetlinkTest() {
ON_CALL(mock_kernel_, socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE))
.WillByDefault(Invoke([this](Unused, Unused, Unused) {
EXPECT_CALL(mock_kernel_, close(kSocketFd)).WillOnce(Return(0));
return kSocketFd;
}));
}
void ExpectNetlinkPacket(
uint16_t type, uint16_t flags,
const std::function<ssize_t(void* buf, size_t len, int seq)>&
recv_callback,
const std::function<void(const void* buf, size_t len)>& send_callback =
nullptr) {
static int seq = -1;
InSequence s;
EXPECT_CALL(mock_kernel_, sendmsg(kSocketFd, _, _))
.WillOnce(Invoke([type, flags, send_callback](
Unused, const struct msghdr* msg, int) {
EXPECT_EQ(sizeof(struct sockaddr_nl), msg->msg_namelen);
auto* nl_addr =
reinterpret_cast<const struct sockaddr_nl*>(msg->msg_name);
EXPECT_EQ(AF_NETLINK, nl_addr->nl_family);
EXPECT_EQ(0, nl_addr->nl_pid);
EXPECT_EQ(0, nl_addr->nl_groups);
EXPECT_GE(msg->msg_iovlen, 1);
EXPECT_GE(msg->msg_iov[0].iov_len, sizeof(struct nlmsghdr));
std::string buf;
for (int i = 0; i < msg->msg_iovlen; i++) {
buf.append(
std::string(reinterpret_cast<char*>(msg->msg_iov[i].iov_base),
msg->msg_iov[i].iov_len));
}
auto* netlink_message =
reinterpret_cast<const struct nlmsghdr*>(buf.c_str());
EXPECT_EQ(type, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_GE(buf.size(), netlink_message->nlmsg_len);
if (send_callback != nullptr) {
send_callback(buf.c_str(), buf.size());
}
QUICHE_CHECK_EQ(seq, -1);
seq = netlink_message->nlmsg_seq;
return buf.size();
}));
EXPECT_CALL(mock_kernel_,
recvfrom(kSocketFd, _, 0, MSG_PEEK | MSG_TRUNC, _, _))
.WillOnce(Invoke([this, recv_callback](Unused, Unused, Unused, Unused,
struct sockaddr* src_addr,
socklen_t* addrlen) {
auto* nl_addr = reinterpret_cast<struct sockaddr_nl*>(src_addr);
nl_addr->nl_family = AF_NETLINK;
nl_addr->nl_pid = 0;
nl_addr->nl_groups = 0;
int ret = recv_callback(reply_packet_, sizeof(reply_packet_), seq);
QUICHE_CHECK_LE(ret, sizeof(reply_packet_));
return ret;
}));
EXPECT_CALL(mock_kernel_, recvfrom(kSocketFd, _, _, _, _, _))
.WillOnce(Invoke([recv_callback](Unused, void* buf, size_t len, Unused,
struct sockaddr* src_addr,
socklen_t* addrlen) {
auto* nl_addr = reinterpret_cast<struct sockaddr_nl*>(src_addr);
nl_addr->nl_family = AF_NETLINK;
nl_addr->nl_pid = 0;
nl_addr->nl_groups = 0;
int ret = recv_callback(buf, len, seq);
EXPECT_GE(len, ret);
seq = -1;
return ret;
}));
}
char reply_packet_[4096];
MockKernel mock_kernel_;
};
void AddRTA(struct nlmsghdr* netlink_message, uint16_t type, const void* data,
size_t len) {
auto* next_header_ptr = reinterpret_cast<char*>(netlink_message) +
NLMSG_ALIGN(netlink_message->nlmsg_len);
auto* rta = reinterpret_cast<struct rtattr*>(next_header_ptr);
rta->rta_type = type;
rta->rta_len = RTA_LENGTH(len);
memcpy(RTA_DATA(rta), data, len);
netlink_message->nlmsg_len =
NLMSG_ALIGN(netlink_message->nlmsg_len) + RTA_LENGTH(len);
}
void CreateIfinfomsg(struct nlmsghdr* netlink_message,
const std::string& interface_name, uint16_t type,
int index, unsigned int flags, unsigned int change,
uint8_t address[], int address_len, uint8_t broadcast[],
int broadcast_len) {
auto* interface_info =
reinterpret_cast<struct ifinfomsg*>(NLMSG_DATA(netlink_message));
interface_info->ifi_family = AF_UNSPEC;
interface_info->ifi_type = type;
interface_info->ifi_index = index;
interface_info->ifi_flags = flags;
interface_info->ifi_change = change;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
AddRTA(netlink_message, IFLA_ADDRESS, address, address_len);
AddRTA(netlink_message, IFLA_BROADCAST, broadcast, broadcast_len);
AddRTA(netlink_message, IFLA_IFNAME, interface_name.c_str(),
interface_name.size());
}
struct nlmsghdr* CreateNetlinkMessage(void* buf,
struct nlmsghdr* previous_netlink_message,
uint16_t type, int seq) {
auto* next_header_ptr = reinterpret_cast<char*>(buf);
if (previous_netlink_message != nullptr) {
next_header_ptr = reinterpret_cast<char*>(previous_netlink_message) +
NLMSG_ALIGN(previous_netlink_message->nlmsg_len);
}
auto* netlink_message = reinterpret_cast<nlmsghdr*>(next_header_ptr);
netlink_message->nlmsg_len = NLMSG_LENGTH(0);
netlink_message->nlmsg_type = type;
netlink_message->nlmsg_flags = NLM_F_MULTI;
netlink_message->nlmsg_pid = 0;
netlink_message->nlmsg_seq = seq;
return netlink_message;
}
void CreateIfaddrmsg(struct nlmsghdr* nlm, int interface_index,
unsigned char prefixlen, unsigned char flags,
unsigned char scope, QuicIpAddress ip) {
QUICHE_CHECK(ip.IsInitialized());
unsigned char family;
switch (ip.address_family()) {
case IpAddressFamily::IP_V4:
family = AF_INET;
break;
case IpAddressFamily::IP_V6:
family = AF_INET6;
break;
default:
QUIC_BUG(quic_bug_11034_1)
<< absl::StrCat("unexpected address family: ", ip.address_family());
family = AF_UNSPEC;
}
auto* msg = reinterpret_cast<struct ifaddrmsg*>(NLMSG_DATA(nlm));
msg->ifa_family = family;
msg->ifa_prefixlen = prefixlen;
msg->ifa_flags = flags;
msg->ifa_scope = scope;
msg->ifa_index = interface_index;
nlm->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
AddRTA(nlm, IFA_LOCAL, ip.ToPackedString().c_str(),
ip.ToPackedString().size());
}
void CreateRtmsg(struct nlmsghdr* nlm, unsigned char family,
unsigned char destination_length, unsigned char source_length,
unsigned char tos, unsigned char table, unsigned char protocol,
unsigned char scope, unsigned char type, unsigned int flags,
QuicIpAddress destination, int interface_index) {
auto* msg = reinterpret_cast<struct rtmsg*>(NLMSG_DATA(nlm));
msg->rtm_family = family;
msg->rtm_dst_len = destination_length;
msg->rtm_src_len = source_length;
msg->rtm_tos = tos;
msg->rtm_table = table;
msg->rtm_protocol = protocol;
msg->rtm_scope = scope;
msg->rtm_type = type;
msg->rtm_flags = flags;
nlm->nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
AddRTA(nlm, RTA_DST, destination.ToPackedString().c_str(),
destination.ToPackedString().size());
AddRTA(nlm, RTA_OIF, &interface_index, sizeof(interface_index));
}
TEST_F(NetlinkTest, GetLinkInfoWorks) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
uint8_t hwaddr[] = {'a', 'b', 'c', 'd', 'e', 'f'};
uint8_t bcaddr[] = {'c', 'b', 'a', 'f', 'e', 'd'};
ExpectNetlinkPacket(
RTM_GETLINK, NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
[&hwaddr, &bcaddr](void* buf, size_t len, int seq) {
int ret = 0;
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, RTM_NEWLINK, seq);
CreateIfinfomsg(netlink_message, "tun0", 1,
7,
0,
0xFFFFFFFF, hwaddr, 6, bcaddr, 6);
ret += NLMSG_ALIGN(netlink_message->nlmsg_len);
netlink_message =
CreateNetlinkMessage(buf, netlink_message, NLMSG_DONE, seq);
ret += NLMSG_ALIGN(netlink_message->nlmsg_len);
return ret;
});
Netlink::LinkInfo link_info;
EXPECT_TRUE(netlink->GetLinkInfo("tun0", &link_info));
EXPECT_EQ(7, link_info.index);
EXPECT_EQ(1, link_info.type);
for (int i = 0; i < link_info.hardware_address_length; ++i) {
EXPECT_EQ(hwaddr[i], link_info.hardware_address[i]);
}
for (int i = 0; i < link_info.broadcast_address_length; ++i) {
EXPECT_EQ(bcaddr[i], link_info.broadcast_address[i]);
}
}
TEST_F(NetlinkTest, GetAddressesWorks) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
absl::node_hash_set<std::string> addresses = {
QuicIpAddress::Any4().ToString(), QuicIpAddress::Any6().ToString()};
ExpectNetlinkPacket(
RTM_GETADDR, NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
[&addresses](void* buf, size_t len, int seq) {
int ret = 0;
struct nlmsghdr* nlm = nullptr;
for (const auto& address : addresses) {
QuicIpAddress ip;
ip.FromString(address);
nlm = CreateNetlinkMessage(buf, nlm, RTM_NEWADDR, seq);
CreateIfaddrmsg(nlm, 7, 24,
0, RT_SCOPE_UNIVERSE, ip);
ret += NLMSG_ALIGN(nlm->nlmsg_len);
}
{
QuicIpAddress ip;
ip.FromString("10.0.0.1");
nlm = CreateNetlinkMessage(buf, nlm, RTM_NEWADDR, seq);
CreateIfaddrmsg(nlm, 7, 16,
IFA_F_OPTIMISTIC,
RT_SCOPE_UNIVERSE, ip);
ret += NLMSG_ALIGN(nlm->nlmsg_len);
ip.FromString("10.0.0.2");
nlm = CreateNetlinkMessage(buf, nlm, RTM_NEWADDR, seq);
CreateIfaddrmsg(nlm, 7, 16,
IFA_F_TENTATIVE,
RT_SCOPE_UNIVERSE, ip);
ret += NLMSG_ALIGN(nlm->nlmsg_len);
}
nlm = CreateNetlinkMessage(buf, nlm, NLMSG_DONE, seq);
ret += NLMSG_ALIGN(nlm->nlmsg_len);
return ret;
});
std::vector<Netlink::AddressInfo> reported_addresses;
int num_ipv6_nodad_dadfailed_addresses = 0;
EXPECT_TRUE(netlink->GetAddresses(7, IFA_F_TENTATIVE | IFA_F_OPTIMISTIC,
&reported_addresses,
&num_ipv6_nodad_dadfailed_addresses));
for (const auto& reported_address : reported_addresses) {
EXPECT_TRUE(reported_address.local_address.IsInitialized());
EXPECT_FALSE(reported_address.interface_address.IsInitialized());
EXPECT_THAT(addresses, Contains(reported_address.local_address.ToString()));
addresses.erase(reported_address.local_address.ToString());
EXPECT_EQ(24, reported_address.prefix_length);
}
EXPECT_TRUE(addresses.empty());
}
TEST_F(NetlinkTest, ChangeLocalAddressAdd) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress ip = QuicIpAddress::Any6();
ExpectNetlinkPacket(
RTM_NEWADDR, NLM_F_ACK | NLM_F_REQUEST,
[](void* buf, size_t len, int seq) {
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, NLMSG_ERROR, seq);
auto* err =
reinterpret_cast<struct nlmsgerr*>(NLMSG_DATA(netlink_message));
err->error = 0;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
return netlink_message->nlmsg_len;
},
[ip](const void* buf, size_t len) {
auto* netlink_message = reinterpret_cast<const struct nlmsghdr*>(buf);
auto* ifa = reinterpret_cast<const struct ifaddrmsg*>(
NLMSG_DATA(netlink_message));
EXPECT_EQ(19, ifa->ifa_prefixlen);
EXPECT_EQ(RT_SCOPE_UNIVERSE, ifa->ifa_scope);
EXPECT_EQ(IFA_F_PERMANENT, ifa->ifa_flags);
EXPECT_EQ(7, ifa->ifa_index);
EXPECT_EQ(AF_INET6, ifa->ifa_family);
const struct rtattr* rta;
int payload_length = IFA_PAYLOAD(netlink_message);
int num_rta = 0;
for (rta = IFA_RTA(ifa); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case IFA_LOCAL: {
EXPECT_EQ(ip.ToPackedString().size(), RTA_PAYLOAD(rta));
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(ip, address);
break;
}
case IFA_CACHEINFO: {
EXPECT_EQ(sizeof(struct ifa_cacheinfo), RTA_PAYLOAD(rta));
const auto* cache_info =
reinterpret_cast<const struct ifa_cacheinfo*>(RTA_DATA(rta));
EXPECT_EQ(8, cache_info->ifa_prefered);
EXPECT_EQ(6, cache_info->ifa_valid);
EXPECT_EQ(4, cache_info->cstamp);
EXPECT_EQ(2, cache_info->tstamp);
break;
}
default:
EXPECT_TRUE(false) << "Seeing rtattr that should not exist";
}
++num_rta;
}
EXPECT_EQ(2, num_rta);
});
struct {
struct rtattr rta;
struct ifa_cacheinfo cache_info;
} additional_rta;
additional_rta.rta.rta_type = IFA_CACHEINFO;
additional_rta.rta.rta_len = RTA_LENGTH(sizeof(struct ifa_cacheinfo));
additional_rta.cache_info.ifa_prefered = 8;
additional_rta.cache_info.ifa_valid = 6;
additional_rta.cache_info.cstamp = 4;
additional_rta.cache_info.tstamp = 2;
EXPECT_TRUE(netlink->ChangeLocalAddress(7, Netlink::Verb::kAdd, ip, 19,
IFA_F_PERMANENT, RT_SCOPE_UNIVERSE,
{&additional_rta.rta}));
}
TEST_F(NetlinkTest, ChangeLocalAddressRemove) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress ip = QuicIpAddress::Any4();
ExpectNetlinkPacket(
RTM_DELADDR, NLM_F_ACK | NLM_F_REQUEST,
[](void* buf, size_t len, int seq) {
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, NLMSG_ERROR, seq);
auto* err =
reinterpret_cast<struct nlmsgerr*>(NLMSG_DATA(netlink_message));
err->error = 0;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
return netlink_message->nlmsg_len;
},
[ip](const void* buf, size_t len) {
auto* netlink_message = reinterpret_cast<const struct nlmsghdr*>(buf);
auto* ifa = reinterpret_cast<const struct ifaddrmsg*>(
NLMSG_DATA(netlink_message));
EXPECT_EQ(32, ifa->ifa_prefixlen);
EXPECT_EQ(RT_SCOPE_UNIVERSE, ifa->ifa_scope);
EXPECT_EQ(0, ifa->ifa_flags);
EXPECT_EQ(7, ifa->ifa_index);
EXPECT_EQ(AF_INET, ifa->ifa_family);
const struct rtattr* rta;
int payload_length = IFA_PAYLOAD(netlink_message);
int num_rta = 0;
for (rta = IFA_RTA(ifa); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case IFA_LOCAL: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(in_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(ip, address);
break;
}
default:
EXPECT_TRUE(false) << "Seeing rtattr that should not exist";
}
++num_rta;
}
EXPECT_EQ(1, num_rta);
});
EXPECT_TRUE(netlink->ChangeLocalAddress(7, Netlink::Verb::kRemove, ip, 32, 0,
RT_SCOPE_UNIVERSE, {}));
}
TEST_F(NetlinkTest, GetRouteInfoWorks) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress destination;
ASSERT_TRUE(destination.FromString("f800::2"));
ExpectNetlinkPacket(RTM_GETROUTE, NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
[destination](void* buf, size_t len, int seq) {
int ret = 0;
struct nlmsghdr* netlink_message = CreateNetlinkMessage(
buf, nullptr, RTM_NEWROUTE, seq);
CreateRtmsg(netlink_message, AF_INET6, 48, 0, 0,
RT_TABLE_MAIN, RTPROT_STATIC, RT_SCOPE_LINK,
RTN_UNICAST, 0, destination, 7);
ret += NLMSG_ALIGN(netlink_message->nlmsg_len);
netlink_message = CreateNetlinkMessage(
buf, netlink_message, NLMSG_DONE, seq);
ret += NLMSG_ALIGN(netlink_message->nlmsg_len);
QUIC_LOG(INFO) << "ret: " << ret;
return ret;
});
std::vector<Netlink::RoutingRule> routing_rules;
EXPECT_TRUE(netlink->GetRouteInfo(&routing_rules));
ASSERT_EQ(1, routing_rules.size());
EXPECT_EQ(RT_SCOPE_LINK, routing_rules[0].scope);
EXPECT_EQ(IpRange(destination, 48).ToString(),
routing_rules[0].destination_subnet.ToString());
EXPECT_FALSE(routing_rules[0].preferred_source.IsInitialized());
EXPECT_EQ(7, routing_rules[0].out_interface);
}
TEST_F(NetlinkTest, ChangeRouteAdd) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress preferred_ip;
preferred_ip.FromString("ff80:dead:beef::1");
IpRange subnet;
subnet.FromString("ff80:dead:beef::/48");
int egress_interface_index = 7;
ExpectNetlinkPacket(
RTM_NEWROUTE, NLM_F_ACK | NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL,
[](void* buf, size_t len, int seq) {
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, NLMSG_ERROR, seq);
auto* err =
reinterpret_cast<struct nlmsgerr*>(NLMSG_DATA(netlink_message));
err->error = 0;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
return netlink_message->nlmsg_len;
},
[preferred_ip, subnet, egress_interface_index](const void* buf,
size_t len) {
auto* netlink_message = reinterpret_cast<const struct nlmsghdr*>(buf);
auto* rtm =
reinterpret_cast<const struct rtmsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(AF_INET6, rtm->rtm_family);
EXPECT_EQ(48, rtm->rtm_dst_len);
EXPECT_EQ(0, rtm->rtm_src_len);
EXPECT_EQ(RT_TABLE_MAIN, rtm->rtm_table);
EXPECT_EQ(RTPROT_STATIC, rtm->rtm_protocol);
EXPECT_EQ(RT_SCOPE_LINK, rtm->rtm_scope);
EXPECT_EQ(RTN_UNICAST, rtm->rtm_type);
const struct rtattr* rta;
int payload_length = RTM_PAYLOAD(netlink_message);
int num_rta = 0;
for (rta = RTM_RTA(rtm); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case RTA_PREFSRC: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(preferred_ip, address);
break;
}
case RTA_GATEWAY: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(*QboneConstants::GatewayAddress(), address);
break;
}
case RTA_OIF: {
ASSERT_EQ(sizeof(int), RTA_PAYLOAD(rta));
const auto* interface_index =
reinterpret_cast<const int*>(RTA_DATA(rta));
EXPECT_EQ(egress_interface_index, *interface_index);
break;
}
case RTA_DST: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(subnet.ToString(),
IpRange(address, rtm->rtm_dst_len).ToString());
break;
}
case RTA_TABLE: {
ASSERT_EQ(*reinterpret_cast<uint32_t*>(RTA_DATA(rta)),
QboneConstants::kQboneRouteTableId);
break;
}
default:
EXPECT_TRUE(false) << "Seeing rtattr that should not be sent";
}
++num_rta;
}
EXPECT_EQ(5, num_rta);
});
EXPECT_TRUE(netlink->ChangeRoute(
Netlink::Verb::kAdd, QboneConstants::kQboneRouteTableId, subnet,
RT_SCOPE_LINK, preferred_ip, egress_interface_index));
}
TEST_F(NetlinkTest, ChangeRouteRemove) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress preferred_ip;
preferred_ip.FromString("ff80:dead:beef::1");
IpRange subnet;
subnet.FromString("ff80:dead:beef::/48");
int egress_interface_index = 7;
ExpectNetlinkPacket(
RTM_DELROUTE, NLM_F_ACK | NLM_F_REQUEST,
[](void* buf, size_t len, int seq) {
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, NLMSG_ERROR, seq);
auto* err =
reinterpret_cast<struct nlmsgerr*>(NLMSG_DATA(netlink_message));
err->error = 0;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
return netlink_message->nlmsg_len;
},
[preferred_ip, subnet, egress_interface_index](const void* buf,
size_t len) {
auto* netlink_message = reinterpret_cast<const struct nlmsghdr*>(buf);
auto* rtm =
reinterpret_cast<const struct rtmsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(AF_INET6, rtm->rtm_family);
EXPECT_EQ(48, rtm->rtm_dst_len);
EXPECT_EQ(0, rtm->rtm_src_len);
EXPECT_EQ(RT_TABLE_MAIN, rtm->rtm_table);
EXPECT_EQ(RTPROT_UNSPEC, rtm->rtm_protocol);
EXPECT_EQ(RT_SCOPE_LINK, rtm->rtm_scope);
EXPECT_EQ(RTN_UNICAST, rtm->rtm_type);
const struct rtattr* rta;
int payload_length = RTM_PAYLOAD(netlink_message);
int num_rta = 0;
for (rta = RTM_RTA(rtm); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case RTA_PREFSRC: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(preferred_ip, address);
break;
}
case RTA_OIF: {
ASSERT_EQ(sizeof(int), RTA_PAYLOAD(rta));
const auto* interface_index =
reinterpret_cast<const int*>(RTA_DATA(rta));
EXPECT_EQ(egress_interface_index, *interface_index);
break;
}
case RTA_DST: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(subnet.ToString(),
IpRange(address, rtm->rtm_dst_len).ToString());
break;
}
case RTA_TABLE: {
ASSERT_EQ(*reinterpret_cast<uint32_t*>(RTA_DATA(rta)),
QboneConstants::kQboneRouteTableId);
break;
}
default:
EXPECT_TRUE(false) << "Seeing rtattr that should not be sent";
}
++num_rta;
}
EXPECT_EQ(4, num_rta);
});
EXPECT_TRUE(netlink->ChangeRoute(
Netlink::Verb::kRemove, QboneConstants::kQboneRouteTableId, subnet,
RT_SCOPE_LINK, preferred_ip, egress_interface_index));
}
TEST_F(NetlinkTest, ChangeRouteReplace) {
auto netlink = std::make_unique<Netlink>(&mock_kernel_);
QuicIpAddress preferred_ip;
preferred_ip.FromString("ff80:dead:beef::1");
IpRange subnet;
subnet.FromString("ff80:dead:beef::/48");
int egress_interface_index = 7;
ExpectNetlinkPacket(
RTM_NEWROUTE, NLM_F_ACK | NLM_F_REQUEST | NLM_F_CREATE | NLM_F_REPLACE,
[](void* buf, size_t len, int seq) {
struct nlmsghdr* netlink_message =
CreateNetlinkMessage(buf, nullptr, NLMSG_ERROR, seq);
auto* err =
reinterpret_cast<struct nlmsgerr*>(NLMSG_DATA(netlink_message));
err->error = 0;
netlink_message->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
return netlink_message->nlmsg_len;
},
[preferred_ip, subnet, egress_interface_index](const void* buf,
size_t len) {
auto* netlink_message = reinterpret_cast<const struct nlmsghdr*>(buf);
auto* rtm =
reinterpret_cast<const struct rtmsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(AF_INET6, rtm->rtm_family);
EXPECT_EQ(48, rtm->rtm_dst_len);
EXPECT_EQ(0, rtm->rtm_src_len);
EXPECT_EQ(RT_TABLE_MAIN, rtm->rtm_table);
EXPECT_EQ(RTPROT_STATIC, rtm->rtm_protocol);
EXPECT_EQ(RT_SCOPE_LINK, rtm->rtm_scope);
EXPECT_EQ(RTN_UNICAST, rtm->rtm_type);
const struct rtattr* rta;
int payload_length = RTM_PAYLOAD(netlink_message);
int num_rta = 0;
for (rta = RTM_RTA(rtm); RTA_OK(rta, payload_length);
rta = RTA_NEXT(rta, payload_length)) {
switch (rta->rta_type) {
case RTA_PREFSRC: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(preferred_ip, address);
break;
}
case RTA_GATEWAY: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(*QboneConstants::GatewayAddress(), address);
break;
}
case RTA_OIF: {
ASSERT_EQ(sizeof(int), RTA_PAYLOAD(rta));
const auto* interface_index =
reinterpret_cast<const int*>(RTA_DATA(rta));
EXPECT_EQ(egress_interface_index, *interface_index);
break;
}
case RTA_DST: {
const auto* raw_address =
reinterpret_cast<const char*>(RTA_DATA(rta));
ASSERT_EQ(sizeof(struct in6_addr), RTA_PAYLOAD(rta));
QuicIpAddress address;
address.FromPackedString(raw_address, RTA_PAYLOAD(rta));
EXPECT_EQ(subnet.ToString(),
IpRange(address, rtm->rtm_dst_len).ToString());
break;
}
case RTA_TABLE: {
ASSERT_EQ(*reinterpret_cast<uint32_t*>(RTA_DATA(rta)),
QboneConstants::kQboneRouteTableId);
break;
}
default:
EXPECT_TRUE(false) << "Seeing rtattr that should not be sent";
}
++num_rta;
}
EXPECT_EQ(5, num_rta);
});
EXPECT_TRUE(netlink->ChangeRoute(
Netlink::Verb::kReplace, QboneConstants::kQboneRouteTableId, subnet,
RT_SCOPE_LINK, preferred_ip, egress_interface_index));
}
}
} |
217 | cpp | google/quiche | ip_range | quiche/quic/qbone/platform/ip_range.cc | quiche/quic/qbone/platform/ip_range_test.cc | #ifndef QUICHE_QUIC_QBONE_PLATFORM_IP_RANGE_H_
#define QUICHE_QUIC_QBONE_PLATFORM_IP_RANGE_H_
#include "absl/strings/str_cat.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
namespace quic {
class IpRange {
public:
IpRange() : prefix_length_(0) {}
IpRange(const QuicIpAddress& prefix, size_t prefix_length);
bool operator==(IpRange other) const;
bool operator!=(IpRange other) const;
bool FromString(const std::string& range);
std::string ToString() const {
if (IsInitialized()) {
return absl::StrCat(prefix_.ToString(), "/", prefix_length_);
}
return "(uninitialized)";
}
bool IsInitialized() const { return prefix_.IsInitialized(); }
QuicIpAddress FirstAddressInRange() const;
IpAddressFamily address_family() const { return prefix_.address_family(); }
QuicIpAddress prefix() const { return prefix_; }
size_t prefix_length() const { return prefix_length_; }
private:
QuicIpAddress prefix_;
size_t prefix_length_;
};
}
#endif
#include "quiche/quic/qbone/platform/ip_range.h"
#include <string>
#include "quiche/common/quiche_endian.h"
namespace quic {
namespace {
constexpr size_t kIPv4Size = 32;
constexpr size_t kIPv6Size = 128;
QuicIpAddress TruncateToLength(const QuicIpAddress& input,
size_t* prefix_length) {
QuicIpAddress output;
if (input.IsIPv4()) {
if (*prefix_length > kIPv4Size) {
*prefix_length = kIPv4Size;
return input;
}
uint32_t raw_address =
*reinterpret_cast<const uint32_t*>(input.ToPackedString().data());
raw_address = quiche::QuicheEndian::NetToHost32(raw_address);
raw_address &= ~0U << (kIPv4Size - *prefix_length);
raw_address = quiche::QuicheEndian::HostToNet32(raw_address);
output.FromPackedString(reinterpret_cast<const char*>(&raw_address),
sizeof(raw_address));
return output;
}
if (input.IsIPv6()) {
if (*prefix_length > kIPv6Size) {
*prefix_length = kIPv6Size;
return input;
}
uint64_t raw_address[2];
memcpy(raw_address, input.ToPackedString().data(), sizeof(raw_address));
raw_address[0] = quiche::QuicheEndian::NetToHost64(raw_address[0]);
raw_address[1] = quiche::QuicheEndian::NetToHost64(raw_address[1]);
if (*prefix_length <= kIPv6Size / 2) {
raw_address[0] &= ~uint64_t{0} << (kIPv6Size / 2 - *prefix_length);
raw_address[1] = 0;
} else {
raw_address[1] &= ~uint64_t{0} << (kIPv6Size - *prefix_length);
}
raw_address[0] = quiche::QuicheEndian::HostToNet64(raw_address[0]);
raw_address[1] = quiche::QuicheEndian::HostToNet64(raw_address[1]);
output.FromPackedString(reinterpret_cast<const char*>(raw_address),
sizeof(raw_address));
return output;
}
return output;
}
}
IpRange::IpRange(const QuicIpAddress& prefix, size_t prefix_length)
: prefix_(prefix), prefix_length_(prefix_length) {
prefix_ = TruncateToLength(prefix_, &prefix_length_);
}
bool IpRange::operator==(IpRange other) const {
return prefix_ == other.prefix_ && prefix_length_ == other.prefix_length_;
}
bool IpRange::operator!=(IpRange other) const { return !(*this == other); }
bool IpRange::FromString(const std::string& range) {
size_t slash_pos = range.find('/');
if (slash_pos == std::string::npos) {
return false;
}
QuicIpAddress prefix;
bool success = prefix.FromString(range.substr(0, slash_pos));
if (!success) {
return false;
}
uint64_t num_processed = 0;
size_t prefix_length = std::stoi(range.substr(slash_pos + 1), &num_processed);
if (num_processed + 1 + slash_pos != range.length()) {
return false;
}
prefix_ = TruncateToLength(prefix, &prefix_length);
prefix_length_ = prefix_length;
return true;
}
QuicIpAddress IpRange::FirstAddressInRange() const { return prefix(); }
} | #include "quiche/quic/qbone/platform/ip_range.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace {
TEST(IpRangeTest, TruncateWorksIPv4) {
QuicIpAddress before_truncate;
before_truncate.FromString("255.255.255.255");
EXPECT_EQ("128.0.0.0/1", IpRange(before_truncate, 1).ToString());
EXPECT_EQ("192.0.0.0/2", IpRange(before_truncate, 2).ToString());
EXPECT_EQ("255.224.0.0/11", IpRange(before_truncate, 11).ToString());
EXPECT_EQ("255.255.255.224/27", IpRange(before_truncate, 27).ToString());
EXPECT_EQ("255.255.255.254/31", IpRange(before_truncate, 31).ToString());
EXPECT_EQ("255.255.255.255/32", IpRange(before_truncate, 32).ToString());
EXPECT_EQ("255.255.255.255/32", IpRange(before_truncate, 33).ToString());
}
TEST(IpRangeTest, TruncateWorksIPv6) {
QuicIpAddress before_truncate;
before_truncate.FromString("ffff:ffff:ffff:ffff:f903::5");
EXPECT_EQ("fe00::/7", IpRange(before_truncate, 7).ToString());
EXPECT_EQ("ffff:ffff:ffff::/48", IpRange(before_truncate, 48).ToString());
EXPECT_EQ("ffff:ffff:ffff:ffff::/64",
IpRange(before_truncate, 64).ToString());
EXPECT_EQ("ffff:ffff:ffff:ffff:8000::/65",
IpRange(before_truncate, 65).ToString());
EXPECT_EQ("ffff:ffff:ffff:ffff:f903::4/127",
IpRange(before_truncate, 127).ToString());
}
TEST(IpRangeTest, FromStringWorksIPv4) {
IpRange range;
ASSERT_TRUE(range.FromString("127.0.3.249/26"));
EXPECT_EQ("127.0.3.192/26", range.ToString());
}
TEST(IpRangeTest, FromStringWorksIPv6) {
IpRange range;
ASSERT_TRUE(range.FromString("ff01:8f21:77f9::/33"));
EXPECT_EQ("ff01:8f21::/33", range.ToString());
}
TEST(IpRangeTest, FirstAddressWorksIPv6) {
IpRange range;
ASSERT_TRUE(range.FromString("ffff:ffff::/64"));
QuicIpAddress first_address = range.FirstAddressInRange();
EXPECT_EQ("ffff:ffff::", first_address.ToString());
}
TEST(IpRangeTest, FirstAddressWorksIPv4) {
IpRange range;
ASSERT_TRUE(range.FromString("10.0.0.0/24"));
QuicIpAddress first_address = range.FirstAddressInRange();
EXPECT_EQ("10.0.0.0", first_address.ToString());
}
}
} |
218 | cpp | google/quiche | rtnetlink_message | quiche/quic/qbone/platform/rtnetlink_message.cc | quiche/quic/qbone/platform/rtnetlink_message_test.cc | #ifndef QUICHE_QUIC_QBONE_PLATFORM_RTNETLINK_MESSAGE_H_
#define QUICHE_QUIC_QBONE_PLATFORM_RTNETLINK_MESSAGE_H_
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <stdint.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <memory>
#include <vector>
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
class RtnetlinkMessage {
public:
virtual ~RtnetlinkMessage();
enum class Operation {
NEW,
DEL,
GET,
};
virtual void AppendAttribute(uint16_t type, const void* data,
uint16_t data_length);
std::unique_ptr<struct iovec[]> BuildIoVec() const;
size_t IoVecSize() const;
protected:
RtnetlinkMessage(uint16_t type, uint16_t flags, uint32_t seq, uint32_t pid,
const void* payload_header, size_t payload_header_length);
void AdjustMessageLength(size_t additional_data_length);
private:
struct nlmsghdr* MessageHeader();
std::vector<struct iovec> message_;
};
class LinkMessage : public RtnetlinkMessage {
public:
static LinkMessage New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct ifinfomsg* interface_info_header);
private:
using RtnetlinkMessage::RtnetlinkMessage;
};
class AddressMessage : public RtnetlinkMessage {
public:
static AddressMessage New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct ifaddrmsg* interface_address_header);
private:
using RtnetlinkMessage::RtnetlinkMessage;
};
class RouteMessage : public RtnetlinkMessage {
public:
static RouteMessage New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct rtmsg* route_message_header);
private:
using RtnetlinkMessage::RtnetlinkMessage;
};
class RuleMessage : public RtnetlinkMessage {
public:
static RuleMessage New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct rtmsg* rule_message_header);
private:
using RtnetlinkMessage::RtnetlinkMessage;
};
}
#endif
#include "quiche/quic/qbone/platform/rtnetlink_message.h"
#include <memory>
#include <utility>
namespace quic {
RtnetlinkMessage::RtnetlinkMessage(uint16_t type, uint16_t flags, uint32_t seq,
uint32_t pid, const void* payload_header,
size_t payload_header_length) {
auto* buf = new uint8_t[NLMSG_SPACE(payload_header_length)];
memset(buf, 0, NLMSG_SPACE(payload_header_length));
auto* message_header = reinterpret_cast<struct nlmsghdr*>(buf);
message_header->nlmsg_len = NLMSG_LENGTH(payload_header_length);
message_header->nlmsg_type = type;
message_header->nlmsg_flags = flags;
message_header->nlmsg_seq = seq;
message_header->nlmsg_pid = pid;
if (payload_header != nullptr) {
memcpy(NLMSG_DATA(message_header), payload_header, payload_header_length);
}
message_.push_back({buf, NLMSG_SPACE(payload_header_length)});
}
RtnetlinkMessage::~RtnetlinkMessage() {
for (const auto& iov : message_) {
delete[] reinterpret_cast<uint8_t*>(iov.iov_base);
}
}
void RtnetlinkMessage::AppendAttribute(uint16_t type, const void* data,
uint16_t data_length) {
auto* buf = new uint8_t[RTA_SPACE(data_length)];
memset(buf, 0, RTA_SPACE(data_length));
auto* rta = reinterpret_cast<struct rtattr*>(buf);
static_assert(sizeof(uint16_t) == sizeof(rta->rta_len),
"struct rtattr uses unsigned short, it's no longer 16bits");
static_assert(sizeof(uint16_t) == sizeof(rta->rta_type),
"struct rtattr uses unsigned short, it's no longer 16bits");
rta->rta_len = RTA_LENGTH(data_length);
rta->rta_type = type;
memcpy(RTA_DATA(rta), data, data_length);
message_.push_back({buf, RTA_SPACE(data_length)});
AdjustMessageLength(rta->rta_len);
}
std::unique_ptr<struct iovec[]> RtnetlinkMessage::BuildIoVec() const {
auto message = std::make_unique<struct iovec[]>(message_.size());
int idx = 0;
for (const auto& vec : message_) {
message[idx++] = vec;
}
return message;
}
size_t RtnetlinkMessage::IoVecSize() const { return message_.size(); }
void RtnetlinkMessage::AdjustMessageLength(size_t additional_data_length) {
MessageHeader()->nlmsg_len =
NLMSG_ALIGN(MessageHeader()->nlmsg_len) + additional_data_length;
}
struct nlmsghdr* RtnetlinkMessage::MessageHeader() {
return reinterpret_cast<struct nlmsghdr*>(message_[0].iov_base);
}
LinkMessage LinkMessage::New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct ifinfomsg* interface_info_header) {
uint16_t request_type;
switch (request_operation) {
case RtnetlinkMessage::Operation::NEW:
request_type = RTM_NEWLINK;
break;
case RtnetlinkMessage::Operation::DEL:
request_type = RTM_DELLINK;
break;
case RtnetlinkMessage::Operation::GET:
request_type = RTM_GETLINK;
break;
}
bool is_get = request_type == RTM_GETLINK;
if (is_get) {
struct rtgenmsg g = {AF_UNSPEC};
return LinkMessage(request_type, flags, seq, pid, &g, sizeof(g));
}
return LinkMessage(request_type, flags, seq, pid, interface_info_header,
sizeof(struct ifinfomsg));
}
AddressMessage AddressMessage::New(
RtnetlinkMessage::Operation request_operation, uint16_t flags, uint32_t seq,
uint32_t pid, const struct ifaddrmsg* interface_address_header) {
uint16_t request_type;
switch (request_operation) {
case RtnetlinkMessage::Operation::NEW:
request_type = RTM_NEWADDR;
break;
case RtnetlinkMessage::Operation::DEL:
request_type = RTM_DELADDR;
break;
case RtnetlinkMessage::Operation::GET:
request_type = RTM_GETADDR;
break;
}
bool is_get = request_type == RTM_GETADDR;
if (is_get) {
struct rtgenmsg g = {AF_UNSPEC};
return AddressMessage(request_type, flags, seq, pid, &g, sizeof(g));
}
return AddressMessage(request_type, flags, seq, pid, interface_address_header,
sizeof(struct ifaddrmsg));
}
RouteMessage RouteMessage::New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct rtmsg* route_message_header) {
uint16_t request_type;
switch (request_operation) {
case RtnetlinkMessage::Operation::NEW:
request_type = RTM_NEWROUTE;
break;
case RtnetlinkMessage::Operation::DEL:
request_type = RTM_DELROUTE;
break;
case RtnetlinkMessage::Operation::GET:
request_type = RTM_GETROUTE;
break;
}
return RouteMessage(request_type, flags, seq, pid, route_message_header,
sizeof(struct rtmsg));
}
RuleMessage RuleMessage::New(RtnetlinkMessage::Operation request_operation,
uint16_t flags, uint32_t seq, uint32_t pid,
const struct rtmsg* rule_message_header) {
uint16_t request_type;
switch (request_operation) {
case RtnetlinkMessage::Operation::NEW:
request_type = RTM_NEWRULE;
break;
case RtnetlinkMessage::Operation::DEL:
request_type = RTM_DELRULE;
break;
case RtnetlinkMessage::Operation::GET:
request_type = RTM_GETRULE;
break;
}
return RuleMessage(request_type, flags, seq, pid, rule_message_header,
sizeof(rtmsg));
}
} | #include "quiche/quic/qbone/platform/rtnetlink_message.h"
#include <net/if_arp.h>
#include <string>
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace {
using ::testing::StrEq;
TEST(RtnetlinkMessageTest, LinkMessageCanBeCreatedForGetOperation) {
uint16_t flags = NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH;
uint32_t seq = 42;
uint32_t pid = 7;
auto message = LinkMessage::New(RtnetlinkMessage::Operation::GET, flags, seq,
pid, nullptr);
EXPECT_EQ(1, message.IoVecSize());
auto iov = message.BuildIoVec();
EXPECT_EQ(NLMSG_SPACE(sizeof(struct rtgenmsg)), iov[0].iov_len);
auto* netlink_message = reinterpret_cast<struct nlmsghdr*>(iov[0].iov_base);
EXPECT_EQ(NLMSG_LENGTH(sizeof(struct rtgenmsg)), netlink_message->nlmsg_len);
EXPECT_EQ(RTM_GETLINK, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_EQ(seq, netlink_message->nlmsg_seq);
EXPECT_EQ(pid, netlink_message->nlmsg_pid);
EXPECT_EQ(NLMSG_LENGTH(sizeof(struct rtgenmsg)), netlink_message->nlmsg_len);
}
TEST(RtnetlinkMessageTest, LinkMessageCanBeCreatedForNewOperation) {
struct ifinfomsg interface_info_header = {AF_INET, 0, ARPHRD_TUNNEL,
3, 0, 0xffffffff};
uint16_t flags = NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH;
uint32_t seq = 42;
uint32_t pid = 7;
auto message = LinkMessage::New(RtnetlinkMessage::Operation::NEW, flags, seq,
pid, &interface_info_header);
std::string device_name = "device0";
message.AppendAttribute(IFLA_IFNAME, device_name.c_str(), device_name.size());
EXPECT_EQ(2, message.IoVecSize());
auto iov = message.BuildIoVec();
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct ifinfomsg))),
iov[0].iov_len);
auto* netlink_message = reinterpret_cast<struct nlmsghdr*>(iov[0].iov_base);
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct ifinfomsg))) +
RTA_LENGTH(device_name.size()),
netlink_message->nlmsg_len);
EXPECT_EQ(RTM_NEWLINK, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_EQ(seq, netlink_message->nlmsg_seq);
EXPECT_EQ(pid, netlink_message->nlmsg_pid);
auto* parsed_header =
reinterpret_cast<struct ifinfomsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(interface_info_header.ifi_family, parsed_header->ifi_family);
EXPECT_EQ(interface_info_header.ifi_type, parsed_header->ifi_type);
EXPECT_EQ(interface_info_header.ifi_index, parsed_header->ifi_index);
EXPECT_EQ(interface_info_header.ifi_flags, parsed_header->ifi_flags);
EXPECT_EQ(interface_info_header.ifi_change, parsed_header->ifi_change);
EXPECT_EQ(RTA_SPACE(device_name.size()), iov[1].iov_len);
auto* rta = reinterpret_cast<struct rtattr*>(iov[1].iov_base);
EXPECT_EQ(IFLA_IFNAME, rta->rta_type);
EXPECT_EQ(RTA_LENGTH(device_name.size()), rta->rta_len);
EXPECT_THAT(device_name,
StrEq(std::string(reinterpret_cast<char*>(RTA_DATA(rta)),
RTA_PAYLOAD(rta))));
}
TEST(RtnetlinkMessageTest, AddressMessageCanBeCreatedForGetOperation) {
uint16_t flags = NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH;
uint32_t seq = 42;
uint32_t pid = 7;
auto message = AddressMessage::New(RtnetlinkMessage::Operation::GET, flags,
seq, pid, nullptr);
EXPECT_EQ(1, message.IoVecSize());
auto iov = message.BuildIoVec();
EXPECT_EQ(NLMSG_SPACE(sizeof(struct rtgenmsg)), iov[0].iov_len);
auto* netlink_message = reinterpret_cast<struct nlmsghdr*>(iov[0].iov_base);
EXPECT_EQ(NLMSG_LENGTH(sizeof(struct rtgenmsg)), netlink_message->nlmsg_len);
EXPECT_EQ(RTM_GETADDR, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_EQ(seq, netlink_message->nlmsg_seq);
EXPECT_EQ(pid, netlink_message->nlmsg_pid);
EXPECT_EQ(NLMSG_LENGTH(sizeof(struct rtgenmsg)), netlink_message->nlmsg_len);
}
TEST(RtnetlinkMessageTest, AddressMessageCanBeCreatedForNewOperation) {
struct ifaddrmsg interface_address_header = {AF_INET,
24,
0,
RT_SCOPE_LINK,
4};
uint16_t flags = NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH;
uint32_t seq = 42;
uint32_t pid = 7;
auto message = AddressMessage::New(RtnetlinkMessage::Operation::NEW, flags,
seq, pid, &interface_address_header);
QuicIpAddress ip;
QUICHE_CHECK(ip.FromString("10.0.100.3"));
message.AppendAttribute(IFA_ADDRESS, ip.ToPackedString().c_str(),
ip.ToPackedString().size());
EXPECT_EQ(2, message.IoVecSize());
auto iov = message.BuildIoVec();
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct ifaddrmsg))),
iov[0].iov_len);
auto* netlink_message = reinterpret_cast<struct nlmsghdr*>(iov[0].iov_base);
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct ifaddrmsg))) +
RTA_LENGTH(ip.ToPackedString().size()),
netlink_message->nlmsg_len);
EXPECT_EQ(RTM_NEWADDR, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_EQ(seq, netlink_message->nlmsg_seq);
EXPECT_EQ(pid, netlink_message->nlmsg_pid);
auto* parsed_header =
reinterpret_cast<struct ifaddrmsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(interface_address_header.ifa_family, parsed_header->ifa_family);
EXPECT_EQ(interface_address_header.ifa_prefixlen,
parsed_header->ifa_prefixlen);
EXPECT_EQ(interface_address_header.ifa_flags, parsed_header->ifa_flags);
EXPECT_EQ(interface_address_header.ifa_scope, parsed_header->ifa_scope);
EXPECT_EQ(interface_address_header.ifa_index, parsed_header->ifa_index);
EXPECT_EQ(RTA_SPACE(ip.ToPackedString().size()), iov[1].iov_len);
auto* rta = reinterpret_cast<struct rtattr*>(iov[1].iov_base);
EXPECT_EQ(IFA_ADDRESS, rta->rta_type);
EXPECT_EQ(RTA_LENGTH(ip.ToPackedString().size()), rta->rta_len);
EXPECT_THAT(ip.ToPackedString(),
StrEq(std::string(reinterpret_cast<char*>(RTA_DATA(rta)),
RTA_PAYLOAD(rta))));
}
TEST(RtnetlinkMessageTest, RouteMessageCanBeCreatedFromNewOperation) {
struct rtmsg route_message_header = {AF_INET6,
48,
0,
0,
RT_TABLE_MAIN,
RTPROT_STATIC,
RT_SCOPE_LINK,
RTN_LOCAL,
0};
uint16_t flags = NLM_F_REQUEST | NLM_F_ROOT | NLM_F_MATCH;
uint32_t seq = 42;
uint32_t pid = 7;
auto message = RouteMessage::New(RtnetlinkMessage::Operation::NEW, flags, seq,
pid, &route_message_header);
QuicIpAddress preferred_source;
QUICHE_CHECK(preferred_source.FromString("ff80::1"));
message.AppendAttribute(RTA_PREFSRC,
preferred_source.ToPackedString().c_str(),
preferred_source.ToPackedString().size());
EXPECT_EQ(2, message.IoVecSize());
auto iov = message.BuildIoVec();
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct rtmsg))), iov[0].iov_len);
auto* netlink_message = reinterpret_cast<struct nlmsghdr*>(iov[0].iov_base);
EXPECT_EQ(NLMSG_ALIGN(NLMSG_LENGTH(sizeof(struct rtmsg))) +
RTA_LENGTH(preferred_source.ToPackedString().size()),
netlink_message->nlmsg_len);
EXPECT_EQ(RTM_NEWROUTE, netlink_message->nlmsg_type);
EXPECT_EQ(flags, netlink_message->nlmsg_flags);
EXPECT_EQ(seq, netlink_message->nlmsg_seq);
EXPECT_EQ(pid, netlink_message->nlmsg_pid);
auto* parsed_header =
reinterpret_cast<struct rtmsg*>(NLMSG_DATA(netlink_message));
EXPECT_EQ(route_message_header.rtm_family, parsed_header->rtm_family);
EXPECT_EQ(route_message_header.rtm_dst_len, parsed_header->rtm_dst_len);
EXPECT_EQ(route_message_header.rtm_src_len, parsed_header->rtm_src_len);
EXPECT_EQ(route_message_header.rtm_tos, parsed_header->rtm_tos);
EXPECT_EQ(route_message_header.rtm_table, parsed_header->rtm_table);
EXPECT_EQ(route_message_header.rtm_protocol, parsed_header->rtm_protocol);
EXPECT_EQ(route_message_header.rtm_scope, parsed_header->rtm_scope);
EXPECT_EQ(route_message_header.rtm_type, parsed_header->rtm_type);
EXPECT_EQ(route_message_header.rtm_flags, parsed_header->rtm_flags);
EXPECT_EQ(RTA_SPACE(preferred_source.ToPackedString().size()),
iov[1].iov_len);
auto* rta = reinterpret_cast<struct rtattr*>(iov[1].iov_base);
EXPECT_EQ(RTA_PREFSRC, rta->rta_type);
EXPECT_EQ(RTA_LENGTH(preferred_source.ToPackedString().size()), rta->rta_len);
EXPECT_THAT(preferred_source.ToPackedString(),
StrEq(std::string(reinterpret_cast<char*>(RTA_DATA(rta)),
RTA_PAYLOAD(rta))));
}
}
} |
219 | cpp | google/quiche | icmp_packet | quiche/quic/qbone/platform/icmp_packet.cc | quiche/quic/qbone/platform/icmp_packet_test.cc | #ifndef QUICHE_QUIC_QBONE_PLATFORM_ICMP_PACKET_H_
#define QUICHE_QUIC_QBONE_PLATFORM_ICMP_PACKET_H_
#include <netinet/icmp6.h>
#include <netinet/in.h>
#include <functional>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/common/quiche_callbacks.h"
namespace quic {
void CreateIcmpPacket(in6_addr src, in6_addr dst, const icmp6_hdr& icmp_header,
absl::string_view body,
quiche::UnretainedCallback<void(absl::string_view)> cb);
}
#endif
#include "quiche/quic/qbone/platform/icmp_packet.h"
#include <netinet/ip6.h>
#include <algorithm>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/internet_checksum.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
namespace {
constexpr size_t kIPv6AddressSize = sizeof(in6_addr);
constexpr size_t kIPv6HeaderSize = sizeof(ip6_hdr);
constexpr size_t kICMPv6HeaderSize = sizeof(icmp6_hdr);
constexpr size_t kIPv6MinPacketSize = 1280;
constexpr size_t kIcmpTtl = 255;
constexpr size_t kICMPv6BodyMaxSize =
kIPv6MinPacketSize - kIPv6HeaderSize - kICMPv6HeaderSize;
struct ICMPv6Packet {
ip6_hdr ip_header;
icmp6_hdr icmp_header;
uint8_t body[kICMPv6BodyMaxSize];
};
struct IPv6PseudoHeader {
uint32_t payload_size{};
uint8_t zeros[3] = {0, 0, 0};
uint8_t next_header = IPPROTO_ICMPV6;
};
}
void CreateIcmpPacket(in6_addr src, in6_addr dst, const icmp6_hdr& icmp_header,
absl::string_view body,
quiche::UnretainedCallback<void(absl::string_view)> cb) {
const size_t body_size = std::min(body.size(), kICMPv6BodyMaxSize);
const size_t payload_size = kICMPv6HeaderSize + body_size;
ICMPv6Packet icmp_packet{};
icmp_packet.ip_header.ip6_vfc = 0x6 << 4;
icmp_packet.ip_header.ip6_plen =
quiche::QuicheEndian::HostToNet16(payload_size);
icmp_packet.ip_header.ip6_nxt = IPPROTO_ICMPV6;
icmp_packet.ip_header.ip6_hops = kIcmpTtl;
icmp_packet.ip_header.ip6_src = src;
icmp_packet.ip_header.ip6_dst = dst;
icmp_packet.icmp_header = icmp_header;
icmp_packet.icmp_header.icmp6_cksum = 0;
IPv6PseudoHeader pseudo_header{};
pseudo_header.payload_size = quiche::QuicheEndian::HostToNet32(payload_size);
InternetChecksum checksum;
checksum.Update(icmp_packet.ip_header.ip6_src.s6_addr, kIPv6AddressSize);
checksum.Update(icmp_packet.ip_header.ip6_dst.s6_addr, kIPv6AddressSize);
checksum.Update(reinterpret_cast<char*>(&pseudo_header),
sizeof(pseudo_header));
checksum.Update(reinterpret_cast<const char*>(&icmp_packet.icmp_header),
sizeof(icmp_packet.icmp_header));
checksum.Update(body.data(), body_size);
icmp_packet.icmp_header.icmp6_cksum = checksum.Value();
memcpy(icmp_packet.body, body.data(), body_size);
const char* packet = reinterpret_cast<char*>(&icmp_packet);
const size_t packet_size = offsetof(ICMPv6Packet, body) + body_size;
cb(absl::string_view(packet, packet_size));
}
} | #include "quiche/quic/qbone/platform/icmp_packet.h"
#include <netinet/ip6.h>
#include <cstdint>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
namespace {
constexpr char kReferenceSourceAddress[] = "fe80:1:2:3:4::1";
constexpr char kReferenceDestinationAddress[] = "fe80:4:3:2:1::1";
constexpr uint8_t kReferenceICMPMessageBody[] {
0xd2, 0x61, 0x29, 0x5b, 0x00, 0x00, 0x00, 0x00,
0x0d, 0x59, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37
};
constexpr uint8_t kReferenceICMPPacket[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x40,
0x3a,
0xFF,
0xfe, 0x80, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03,
0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xfe, 0x80, 0x00, 0x04, 0x00, 0x03, 0x00, 0x02,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x80, 0x00,
0xec, 0x00,
0xcb, 0x82,
0x00, 0x01,
0xd2, 0x61, 0x29, 0x5b, 0x00, 0x00, 0x00, 0x00,
0x0d, 0x59, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37
};
}
TEST(IcmpPacketTest, CreatedPacketMatchesReference) {
QuicIpAddress src;
ASSERT_TRUE(src.FromString(kReferenceSourceAddress));
in6_addr src_addr;
memcpy(src_addr.s6_addr, src.ToPackedString().data(), sizeof(in6_addr));
QuicIpAddress dst;
ASSERT_TRUE(dst.FromString(kReferenceDestinationAddress));
in6_addr dst_addr;
memcpy(dst_addr.s6_addr, dst.ToPackedString().data(), sizeof(in6_addr));
icmp6_hdr icmp_header{};
icmp_header.icmp6_type = ICMP6_ECHO_REQUEST;
icmp_header.icmp6_id = 0x82cb;
icmp_header.icmp6_seq = 0x0100;
absl::string_view message_body = absl::string_view(
reinterpret_cast<const char*>(kReferenceICMPMessageBody), 56);
absl::string_view expected_packet = absl::string_view(
reinterpret_cast<const char*>(kReferenceICMPPacket), 104);
CreateIcmpPacket(src_addr, dst_addr, icmp_header, message_body,
[&expected_packet](absl::string_view packet) {
QUIC_LOG(INFO) << quiche::QuicheTextUtils::HexDump(packet);
ASSERT_EQ(packet, expected_packet);
});
}
TEST(IcmpPacketTest, NonZeroChecksumIsIgnored) {
QuicIpAddress src;
ASSERT_TRUE(src.FromString(kReferenceSourceAddress));
in6_addr src_addr;
memcpy(src_addr.s6_addr, src.ToPackedString().data(), sizeof(in6_addr));
QuicIpAddress dst;
ASSERT_TRUE(dst.FromString(kReferenceDestinationAddress));
in6_addr dst_addr;
memcpy(dst_addr.s6_addr, dst.ToPackedString().data(), sizeof(in6_addr));
icmp6_hdr icmp_header{};
icmp_header.icmp6_type = ICMP6_ECHO_REQUEST;
icmp_header.icmp6_id = 0x82cb;
icmp_header.icmp6_seq = 0x0100;
icmp_header.icmp6_cksum = 0x1234;
absl::string_view message_body = absl::string_view(
reinterpret_cast<const char*>(kReferenceICMPMessageBody), 56);
absl::string_view expected_packet = absl::string_view(
reinterpret_cast<const char*>(kReferenceICMPPacket), 104);
CreateIcmpPacket(src_addr, dst_addr, icmp_header, message_body,
[&expected_packet](absl::string_view packet) {
QUIC_LOG(INFO) << quiche::QuicheTextUtils::HexDump(packet);
ASSERT_EQ(packet, expected_packet);
});
}
} |
220 | cpp | google/quiche | tcp_packet | quiche/quic/qbone/platform/tcp_packet.cc | quiche/quic/qbone/platform/tcp_packet_test.cc | #ifndef QUICHE_QUIC_QBONE_PLATFORM_TCP_PACKET_H_
#define QUICHE_QUIC_QBONE_PLATFORM_TCP_PACKET_H_
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <functional>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/common/quiche_callbacks.h"
namespace quic {
void CreateTcpResetPacket(
absl::string_view original_packet,
quiche::UnretainedCallback<void(absl::string_view)> cb);
}
#endif
#include "quiche/quic/qbone/platform/tcp_packet.h"
#include <netinet/ip6.h>
#include "absl/base/optimization.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/internet_checksum.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
namespace {
constexpr size_t kIPv6AddressSize = sizeof(in6_addr);
constexpr size_t kTcpTtl = 64;
struct TCPv6Packet {
ip6_hdr ip_header;
tcphdr tcp_header;
};
struct TCPv6PseudoHeader {
uint32_t payload_size{};
uint8_t zeros[3] = {0, 0, 0};
uint8_t next_header = IPPROTO_TCP;
};
}
void CreateTcpResetPacket(
absl::string_view original_packet,
quiche::UnretainedCallback<void(absl::string_view)> cb) {
if (ABSL_PREDICT_FALSE(original_packet.size() < sizeof(ip6_hdr))) {
return;
}
auto* ip6_header = reinterpret_cast<const ip6_hdr*>(original_packet.data());
if (ABSL_PREDICT_FALSE(ip6_header->ip6_vfc >> 4 != 6)) {
return;
}
if (ABSL_PREDICT_FALSE(ip6_header->ip6_nxt != IPPROTO_TCP)) {
return;
}
if (ABSL_PREDICT_FALSE(quiche::QuicheEndian::NetToHost16(
ip6_header->ip6_plen) < sizeof(tcphdr))) {
return;
}
auto* tcp_header = reinterpret_cast<const tcphdr*>(ip6_header + 1);
TCPv6Packet tcp_packet{};
const size_t payload_size = sizeof(tcphdr);
tcp_packet.ip_header.ip6_vfc = 0x6 << 4;
tcp_packet.ip_header.ip6_plen =
quiche::QuicheEndian::HostToNet16(payload_size);
tcp_packet.ip_header.ip6_nxt = IPPROTO_TCP;
tcp_packet.ip_header.ip6_hops = kTcpTtl;
tcp_packet.ip_header.ip6_src = ip6_header->ip6_dst;
tcp_packet.ip_header.ip6_dst = ip6_header->ip6_src;
tcp_packet.tcp_header.dest = tcp_header->source;
tcp_packet.tcp_header.source = tcp_header->dest;
tcp_packet.tcp_header.doff = sizeof(tcphdr) >> 2;
tcp_packet.tcp_header.check = 0;
tcp_packet.tcp_header.rst = 1;
if (tcp_header->ack) {
tcp_packet.tcp_header.seq = tcp_header->ack_seq;
} else {
tcp_packet.tcp_header.ack = 1;
tcp_packet.tcp_header.seq = 0;
tcp_packet.tcp_header.ack_seq = quiche::QuicheEndian::HostToNet32(
quiche::QuicheEndian::NetToHost32(tcp_header->seq) + 1);
}
TCPv6PseudoHeader pseudo_header{};
pseudo_header.payload_size = quiche::QuicheEndian::HostToNet32(payload_size);
InternetChecksum checksum;
checksum.Update(tcp_packet.ip_header.ip6_src.s6_addr, kIPv6AddressSize);
checksum.Update(tcp_packet.ip_header.ip6_dst.s6_addr, kIPv6AddressSize);
checksum.Update(reinterpret_cast<char*>(&pseudo_header),
sizeof(pseudo_header));
checksum.Update(reinterpret_cast<const char*>(&tcp_packet.tcp_header),
sizeof(tcp_packet.tcp_header));
tcp_packet.tcp_header.check = checksum.Value();
const char* packet = reinterpret_cast<char*>(&tcp_packet);
cb(absl::string_view(packet, sizeof(tcp_packet)));
}
} | #include "quiche/quic/qbone/platform/tcp_packet.h"
#include <netinet/ip6.h>
#include <cstdint>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
namespace {
constexpr uint8_t kReferenceTCPSYNPacket[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x28,
0x06,
0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0xac, 0x1e,
0x27, 0x0f,
0x4b, 0x01, 0xe8, 0x99,
0x00, 0x00, 0x00, 0x00,
0xa0,
0x02,
0xaa, 0xaa,
0x2e, 0x21,
0x00, 0x00,
0x02, 0x04, 0xff, 0xc4, 0x04, 0x02, 0x08, 0x0a,
0x1b, 0xb8, 0x52, 0xa1, 0x00, 0x00, 0x00, 0x00,
0x01, 0x03, 0x03, 0x07,
};
constexpr uint8_t kReferenceTCPRSTPacket[] = {
0x60, 0x00, 0x00, 0x00,
0x00, 0x14,
0x06,
0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x27, 0x0f,
0xac, 0x1e,
0x00, 0x00, 0x00, 0x00,
0x4b, 0x01, 0xe8, 0x9a,
0x50,
0x14,
0x00, 0x00,
0xa9, 0x05,
0x00, 0x00,
};
}
TEST(TcpPacketTest, CreatedPacketMatchesReference) {
absl::string_view syn =
absl::string_view(reinterpret_cast<const char*>(kReferenceTCPSYNPacket),
sizeof(kReferenceTCPSYNPacket));
absl::string_view expected_packet =
absl::string_view(reinterpret_cast<const char*>(kReferenceTCPRSTPacket),
sizeof(kReferenceTCPRSTPacket));
CreateTcpResetPacket(syn, [&expected_packet](absl::string_view packet) {
QUIC_LOG(INFO) << quiche::QuicheTextUtils::HexDump(packet);
ASSERT_EQ(packet, expected_packet);
});
}
} |
221 | cpp | google/quiche | tun_device_packet_exchanger | quiche/quic/qbone/bonnet/tun_device_packet_exchanger.cc | quiche/quic/qbone/bonnet/tun_device_packet_exchanger_test.cc | #ifndef QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_PACKET_EXCHANGER_H_
#define QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_PACKET_EXCHANGER_H_
#include <linux/if_ether.h>
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/qbone/platform/kernel_interface.h"
#include "quiche/quic/qbone/platform/netlink_interface.h"
#include "quiche/quic/qbone/qbone_client_interface.h"
#include "quiche/quic/qbone/qbone_packet_exchanger.h"
namespace quic {
class TunDevicePacketExchanger : public QbonePacketExchanger {
public:
class StatsInterface {
public:
StatsInterface() = default;
StatsInterface(const StatsInterface&) = delete;
StatsInterface& operator=(const StatsInterface&) = delete;
StatsInterface(StatsInterface&&) = delete;
StatsInterface& operator=(StatsInterface&&) = delete;
virtual ~StatsInterface() = default;
virtual void OnPacketRead(size_t count) = 0;
virtual void OnPacketWritten(size_t count) = 0;
virtual void OnReadError(std::string* error) = 0;
virtual void OnWriteError(std::string* error) = 0;
ABSL_MUST_USE_RESULT virtual int64_t PacketsRead() const = 0;
ABSL_MUST_USE_RESULT virtual int64_t PacketsWritten() const = 0;
};
TunDevicePacketExchanger(size_t mtu, KernelInterface* kernel,
NetlinkInterface* netlink,
QbonePacketExchanger::Visitor* visitor,
size_t max_pending_packets, bool is_tap,
StatsInterface* stats, absl::string_view ifname);
void set_file_descriptor(int fd);
ABSL_MUST_USE_RESULT const StatsInterface* stats_interface() const;
private:
std::unique_ptr<QuicData> ReadPacket(bool* blocked,
std::string* error) override;
bool WritePacket(const char* packet, size_t size, bool* blocked,
std::string* error) override;
std::unique_ptr<QuicData> ApplyL2Headers(const QuicData& l3_packet);
std::unique_ptr<QuicData> ConsumeL2Headers(const QuicData& l2_packet);
int fd_ = -1;
size_t mtu_;
KernelInterface* kernel_;
NetlinkInterface* netlink_;
const std::string ifname_;
const bool is_tap_;
uint8_t tap_mac_[ETH_ALEN]{};
bool mac_initialized_ = false;
StatsInterface* stats_;
};
}
#endif
#include "quiche/quic/qbone/bonnet/tun_device_packet_exchanger.h"
#include <netinet/icmp6.h>
#include <netinet/ip6.h>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "quiche/quic/qbone/platform/icmp_packet.h"
#include "quiche/quic/qbone/platform/netlink_interface.h"
#include "quiche/quic/qbone/qbone_constants.h"
namespace quic {
TunDevicePacketExchanger::TunDevicePacketExchanger(
size_t mtu, KernelInterface* kernel, NetlinkInterface* netlink,
QbonePacketExchanger::Visitor* visitor, size_t max_pending_packets,
bool is_tap, StatsInterface* stats, absl::string_view ifname)
: QbonePacketExchanger(visitor, max_pending_packets),
mtu_(mtu),
kernel_(kernel),
netlink_(netlink),
ifname_(ifname),
is_tap_(is_tap),
stats_(stats) {
if (is_tap_) {
mtu_ += ETH_HLEN;
}
}
bool TunDevicePacketExchanger::WritePacket(const char* packet, size_t size,
bool* blocked, std::string* error) {
*blocked = false;
if (fd_ < 0) {
*error = absl::StrCat("Invalid file descriptor of the TUN device: ", fd_);
stats_->OnWriteError(error);
return false;
}
auto buffer = std::make_unique<QuicData>(packet, size);
if (is_tap_) {
buffer = ApplyL2Headers(*buffer);
}
int result = kernel_->write(fd_, buffer->data(), buffer->length());
if (result == -1) {
if (errno == EWOULDBLOCK || errno == EAGAIN) {
*error = absl::StrCat("Write to the TUN device was blocked: ", errno);
*blocked = true;
stats_->OnWriteError(error);
}
return false;
}
stats_->OnPacketWritten(result);
return true;
}
std::unique_ptr<QuicData> TunDevicePacketExchanger::ReadPacket(
bool* blocked, std::string* error) {
*blocked = false;
if (fd_ < 0) {
*error = absl::StrCat("Invalid file descriptor of the TUN device: ", fd_);
stats_->OnReadError(error);
return nullptr;
}
auto read_buffer = std::make_unique<char[]>(mtu_);
int result = kernel_->read(fd_, read_buffer.get(), mtu_);
if (result <= 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
*error = absl::StrCat("Read from the TUN device was blocked: ", errno);
*blocked = true;
stats_->OnReadError(error);
}
return nullptr;
}
auto buffer = std::make_unique<QuicData>(read_buffer.release(), result, true);
if (is_tap_) {
buffer = ConsumeL2Headers(*buffer);
}
if (buffer) {
stats_->OnPacketRead(buffer->length());
}
return buffer;
}
void TunDevicePacketExchanger::set_file_descriptor(int fd) { fd_ = fd; }
const TunDevicePacketExchanger::StatsInterface*
TunDevicePacketExchanger::stats_interface() const {
return stats_;
}
std::unique_ptr<QuicData> TunDevicePacketExchanger::ApplyL2Headers(
const QuicData& l3_packet) {
if (is_tap_ && !mac_initialized_) {
NetlinkInterface::LinkInfo link_info{};
if (netlink_->GetLinkInfo(ifname_, &link_info)) {
memcpy(tap_mac_, link_info.hardware_address, ETH_ALEN);
mac_initialized_ = true;
} else {
QUIC_LOG_EVERY_N_SEC(ERROR, 30)
<< "Unable to get link info for: " << ifname_;
}
}
const auto l2_packet_size = l3_packet.length() + ETH_HLEN;
auto l2_buffer = std::make_unique<char[]>(l2_packet_size);
auto* hdr = reinterpret_cast<ethhdr*>(l2_buffer.get());
memcpy(hdr->h_dest, tap_mac_, ETH_ALEN);
memcpy(hdr->h_source, tap_mac_, ETH_ALEN);
hdr->h_proto = absl::ghtons(ETH_P_IPV6);
memcpy(l2_buffer.get() + ETH_HLEN, l3_packet.data(), l3_packet.length());
return std::make_unique<QuicData>(l2_buffer.release(), l2_packet_size, true);
}
std::unique_ptr<QuicData> TunDevicePacketExchanger::ConsumeL2Headers(
const QuicData& l2_packet) {
if (l2_packet.length() < ETH_HLEN) {
return nullptr;
}
auto* hdr = reinterpret_cast<const ethhdr*>(l2_packet.data());
if (hdr->h_proto != absl::ghtons(ETH_P_IPV6)) {
return nullptr;
}
constexpr auto kIp6PrefixLen = ETH_HLEN + sizeof(ip6_hdr);
constexpr auto kIcmp6PrefixLen = kIp6PrefixLen + sizeof(icmp6_hdr);
if (l2_packet.length() < kIp6PrefixLen) {
return nullptr;
}
auto* ip_hdr = reinterpret_cast<const ip6_hdr*>(l2_packet.data() + ETH_HLEN);
const bool is_icmp = ip_hdr->ip6_ctlun.ip6_un1.ip6_un1_nxt == IPPROTO_ICMPV6;
bool is_neighbor_solicit = false;
if (is_icmp) {
if (l2_packet.length() < kIcmp6PrefixLen) {
return nullptr;
}
is_neighbor_solicit =
reinterpret_cast<const icmp6_hdr*>(l2_packet.data() + kIp6PrefixLen)
->icmp6_type == ND_NEIGHBOR_SOLICIT;
}
if (is_neighbor_solicit) {
auto* icmp6_payload = l2_packet.data() + kIcmp6PrefixLen;
QuicIpAddress target_address(
*reinterpret_cast<const in6_addr*>(icmp6_payload));
if (target_address != *QboneConstants::GatewayAddress()) {
return nullptr;
}
constexpr size_t kIcmpv6OptionSize = 8;
const int payload_size = sizeof(in6_addr) + kIcmpv6OptionSize;
auto payload = std::make_unique<char[]>(payload_size);
memcpy(payload.get(), icmp6_payload, sizeof(in6_addr));
int pos = sizeof(in6_addr);
payload[pos++] = ND_OPT_TARGET_LINKADDR;
payload[pos++] = 1;
memcpy(&payload[pos], tap_mac_, ETH_ALEN);
icmp6_hdr response_hdr{};
response_hdr.icmp6_type = ND_NEIGHBOR_ADVERT;
response_hdr.icmp6_dataun.icmp6_un_data8[0] = 64;
CreateIcmpPacket(ip_hdr->ip6_src, ip_hdr->ip6_src, response_hdr,
absl::string_view(payload.get(), payload_size),
[this](absl::string_view packet) {
bool blocked;
std::string error;
WritePacket(packet.data(), packet.size(), &blocked,
&error);
});
return nullptr;
}
const auto l3_packet_size = l2_packet.length() - ETH_HLEN;
auto shift_buffer = std::make_unique<char[]>(l3_packet_size);
memcpy(shift_buffer.get(), l2_packet.data() + ETH_HLEN, l3_packet_size);
return std::make_unique<QuicData>(shift_buffer.release(), l3_packet_size,
true);
}
} | #include "quiche/quic/qbone/bonnet/tun_device_packet_exchanger.h"
#include <string>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/bonnet/mock_packet_exchanger_stats_interface.h"
#include "quiche/quic/qbone/mock_qbone_client.h"
#include "quiche/quic/qbone/platform/mock_kernel.h"
namespace quic::test {
namespace {
const size_t kMtu = 1000;
const size_t kMaxPendingPackets = 5;
const int kFd = 15;
using ::testing::_;
using ::testing::Invoke;
using ::testing::StrEq;
using ::testing::StrictMock;
class MockVisitor : public QbonePacketExchanger::Visitor {
public:
MOCK_METHOD(void, OnReadError, (const std::string&), (override));
MOCK_METHOD(void, OnWriteError, (const std::string&), (override));
};
class TunDevicePacketExchangerTest : public QuicTest {
protected:
TunDevicePacketExchangerTest()
: exchanger_(kMtu, &mock_kernel_, nullptr, &mock_visitor_,
kMaxPendingPackets, false, &mock_stats_,
absl::string_view()) {
exchanger_.set_file_descriptor(kFd);
}
~TunDevicePacketExchangerTest() override = default;
MockKernel mock_kernel_;
StrictMock<MockVisitor> mock_visitor_;
StrictMock<MockQboneClient> mock_client_;
StrictMock<MockPacketExchangerStatsInterface> mock_stats_;
TunDevicePacketExchanger exchanger_;
};
TEST_F(TunDevicePacketExchangerTest, WritePacketReturnsFalseOnError) {
std::string packet = "fake packet";
EXPECT_CALL(mock_kernel_, write(kFd, _, packet.size()))
.WillOnce(Invoke([](int fd, const void* buf, size_t count) {
errno = ECOMM;
return -1;
}));
EXPECT_CALL(mock_visitor_, OnWriteError(_));
exchanger_.WritePacketToNetwork(packet.data(), packet.size());
}
TEST_F(TunDevicePacketExchangerTest,
WritePacketReturnFalseAndBlockedOnBlockedTunnel) {
std::string packet = "fake packet";
EXPECT_CALL(mock_kernel_, write(kFd, _, packet.size()))
.WillOnce(Invoke([](int fd, const void* buf, size_t count) {
errno = EAGAIN;
return -1;
}));
EXPECT_CALL(mock_stats_, OnWriteError(_)).Times(1);
exchanger_.WritePacketToNetwork(packet.data(), packet.size());
}
TEST_F(TunDevicePacketExchangerTest, WritePacketReturnsTrueOnSuccessfulWrite) {
std::string packet = "fake packet";
EXPECT_CALL(mock_kernel_, write(kFd, _, packet.size()))
.WillOnce(Invoke([packet](int fd, const void* buf, size_t count) {
EXPECT_THAT(reinterpret_cast<const char*>(buf), StrEq(packet));
return count;
}));
EXPECT_CALL(mock_stats_, OnPacketWritten(_)).Times(1);
exchanger_.WritePacketToNetwork(packet.data(), packet.size());
}
TEST_F(TunDevicePacketExchangerTest, ReadPacketReturnsNullOnError) {
EXPECT_CALL(mock_kernel_, read(kFd, _, kMtu))
.WillOnce(Invoke([](int fd, void* buf, size_t count) {
errno = ECOMM;
return -1;
}));
EXPECT_CALL(mock_visitor_, OnReadError(_));
exchanger_.ReadAndDeliverPacket(&mock_client_);
}
TEST_F(TunDevicePacketExchangerTest, ReadPacketReturnsNullOnBlockedRead) {
EXPECT_CALL(mock_kernel_, read(kFd, _, kMtu))
.WillOnce(Invoke([](int fd, void* buf, size_t count) {
errno = EAGAIN;
return -1;
}));
EXPECT_CALL(mock_stats_, OnReadError(_)).Times(1);
EXPECT_FALSE(exchanger_.ReadAndDeliverPacket(&mock_client_));
}
TEST_F(TunDevicePacketExchangerTest,
ReadPacketReturnsThePacketOnSuccessfulRead) {
std::string packet = "fake_packet";
EXPECT_CALL(mock_kernel_, read(kFd, _, kMtu))
.WillOnce(Invoke([packet](int fd, void* buf, size_t count) {
memcpy(buf, packet.data(), packet.size());
return packet.size();
}));
EXPECT_CALL(mock_client_, ProcessPacketFromNetwork(StrEq(packet)));
EXPECT_CALL(mock_stats_, OnPacketRead(_)).Times(1);
EXPECT_TRUE(exchanger_.ReadAndDeliverPacket(&mock_client_));
}
}
} |
222 | cpp | google/quiche | icmp_reachable | quiche/quic/qbone/bonnet/icmp_reachable.cc | quiche/quic/qbone/bonnet/icmp_reachable_test.cc | #ifndef QUICHE_QUIC_QBONE_BONNET_ICMP_REACHABLE_H_
#define QUICHE_QUIC_QBONE_BONNET_ICMP_REACHABLE_H_
#include <netinet/icmp6.h>
#include <memory>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_mutex.h"
#include "quiche/quic/qbone/bonnet/icmp_reachable_interface.h"
#include "quiche/quic/qbone/platform/kernel_interface.h"
namespace quic {
extern const char kUnknownSource[];
extern const char kNoSource[];
class IcmpReachable : public IcmpReachableInterface {
public:
enum Status { REACHABLE, UNREACHABLE };
struct ReachableEvent {
Status status;
QuicTime::Delta response_time;
std::string source;
};
class StatsInterface {
public:
StatsInterface() = default;
StatsInterface(const StatsInterface&) = delete;
StatsInterface& operator=(const StatsInterface&) = delete;
StatsInterface(StatsInterface&&) = delete;
StatsInterface& operator=(StatsInterface&&) = delete;
virtual ~StatsInterface() = default;
virtual void OnEvent(ReachableEvent event) = 0;
virtual void OnReadError(int error) = 0;
virtual void OnWriteError(int error) = 0;
};
IcmpReachable(QuicIpAddress source, QuicIpAddress destination,
QuicTime::Delta timeout, KernelInterface* kernel,
QuicEventLoop* event_loop, StatsInterface* stats);
~IcmpReachable() override;
bool Init() QUIC_LOCKS_EXCLUDED(header_lock_) override;
void OnAlarm() QUIC_LOCKS_EXCLUDED(header_lock_);
static absl::string_view StatusName(Status status);
private:
class EpollCallback : public QuicSocketEventListener {
public:
explicit EpollCallback(IcmpReachable* reachable) : reachable_(reachable) {}
EpollCallback(const EpollCallback&) = delete;
EpollCallback& operator=(const EpollCallback&) = delete;
EpollCallback(EpollCallback&&) = delete;
EpollCallback& operator=(EpollCallback&&) = delete;
void OnSocketEvent(QuicEventLoop* event_loop, SocketFd fd,
QuicSocketEventMask events) override;
private:
IcmpReachable* reachable_;
};
class AlarmCallback : public QuicAlarm::DelegateWithoutContext {
public:
explicit AlarmCallback(IcmpReachable* reachable) : reachable_(reachable) {}
void OnAlarm() override { reachable_->OnAlarm(); }
private:
IcmpReachable* reachable_;
};
bool OnEvent(int fd) QUIC_LOCKS_EXCLUDED(header_lock_);
const QuicTime::Delta timeout_;
QuicEventLoop* event_loop_;
const QuicClock* clock_;
std::unique_ptr<QuicAlarmFactory> alarm_factory_;
EpollCallback cb_;
std::unique_ptr<QuicAlarm> alarm_;
sockaddr_in6 src_{};
sockaddr_in6 dst_{};
KernelInterface* kernel_;
StatsInterface* stats_;
int send_fd_;
int recv_fd_;
QuicMutex header_lock_;
icmp6_hdr icmp_header_ QUIC_GUARDED_BY(header_lock_){};
QuicTime start_ = QuicTime::Zero();
QuicTime end_ = QuicTime::Zero();
};
}
#endif
#include "quiche/quic/qbone/bonnet/icmp_reachable.h"
#include <netinet/ip6.h>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_mutex.h"
#include "quiche/quic/qbone/platform/icmp_packet.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
namespace {
constexpr QuicSocketEventMask kEventMask =
kSocketEventReadable | kSocketEventWritable;
constexpr size_t kMtu = 1280;
constexpr size_t kIPv6AddrSize = sizeof(in6_addr);
}
const char kUnknownSource[] = "UNKNOWN";
const char kNoSource[] = "N/A";
IcmpReachable::IcmpReachable(QuicIpAddress source, QuicIpAddress destination,
QuicTime::Delta timeout, KernelInterface* kernel,
QuicEventLoop* event_loop, StatsInterface* stats)
: timeout_(timeout),
event_loop_(event_loop),
clock_(event_loop->GetClock()),
alarm_factory_(event_loop->CreateAlarmFactory()),
cb_(this),
alarm_(alarm_factory_->CreateAlarm(new AlarmCallback(this))),
kernel_(kernel),
stats_(stats),
send_fd_(0),
recv_fd_(0) {
src_.sin6_family = AF_INET6;
dst_.sin6_family = AF_INET6;
memcpy(&src_.sin6_addr, source.ToPackedString().data(), kIPv6AddrSize);
memcpy(&dst_.sin6_addr, destination.ToPackedString().data(), kIPv6AddrSize);
}
IcmpReachable::~IcmpReachable() {
if (send_fd_ > 0) {
kernel_->close(send_fd_);
}
if (recv_fd_ > 0) {
bool success = event_loop_->UnregisterSocket(recv_fd_);
QUICHE_DCHECK(success);
kernel_->close(recv_fd_);
}
}
bool IcmpReachable::Init() {
send_fd_ = kernel_->socket(PF_INET6, SOCK_RAW | SOCK_NONBLOCK, IPPROTO_RAW);
if (send_fd_ < 0) {
QUIC_LOG(ERROR) << "Unable to open socket: " << errno;
return false;
}
if (kernel_->bind(send_fd_, reinterpret_cast<struct sockaddr*>(&src_),
sizeof(sockaddr_in6)) < 0) {
QUIC_LOG(ERROR) << "Unable to bind socket: " << errno;
return false;
}
recv_fd_ =
kernel_->socket(PF_INET6, SOCK_RAW | SOCK_NONBLOCK, IPPROTO_ICMPV6);
if (recv_fd_ < 0) {
QUIC_LOG(ERROR) << "Unable to open socket: " << errno;
return false;
}
if (kernel_->bind(recv_fd_, reinterpret_cast<struct sockaddr*>(&src_),
sizeof(sockaddr_in6)) < 0) {
QUIC_LOG(ERROR) << "Unable to bind socket: " << errno;
return false;
}
icmp6_filter filter;
ICMP6_FILTER_SETBLOCKALL(&filter);
ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filter);
if (kernel_->setsockopt(recv_fd_, SOL_ICMPV6, ICMP6_FILTER, &filter,
sizeof(filter)) < 0) {
QUIC_LOG(ERROR) << "Unable to set ICMP6 filter.";
return false;
}
if (!event_loop_->RegisterSocket(recv_fd_, kEventMask, &cb_)) {
QUIC_LOG(ERROR) << "Unable to register recv ICMP socket";
return false;
}
alarm_->Set(clock_->Now());
QuicWriterMutexLock mu(&header_lock_);
icmp_header_.icmp6_type = ICMP6_ECHO_REQUEST;
icmp_header_.icmp6_code = 0;
QuicRandom::GetInstance()->RandBytes(&icmp_header_.icmp6_id,
sizeof(uint16_t));
return true;
}
bool IcmpReachable::OnEvent(int fd) {
char buffer[kMtu];
sockaddr_in6 source_addr{};
socklen_t source_addr_len = sizeof(source_addr);
ssize_t size = kernel_->recvfrom(fd, &buffer, kMtu, 0,
reinterpret_cast<sockaddr*>(&source_addr),
&source_addr_len);
if (size < 0) {
if (errno != EAGAIN && errno != EWOULDBLOCK) {
stats_->OnReadError(errno);
}
return false;
}
QUIC_VLOG(2) << quiche::QuicheTextUtils::HexDump(
absl::string_view(buffer, size));
auto* header = reinterpret_cast<const icmp6_hdr*>(&buffer);
QuicWriterMutexLock mu(&header_lock_);
if (header->icmp6_data32[0] != icmp_header_.icmp6_data32[0]) {
QUIC_VLOG(2) << "Unexpected response. id: " << header->icmp6_id
<< " seq: " << header->icmp6_seq
<< " Expected id: " << icmp_header_.icmp6_id
<< " seq: " << icmp_header_.icmp6_seq;
return true;
}
end_ = clock_->Now();
QUIC_VLOG(1) << "Received ping response in " << (end_ - start_);
std::string source;
QuicIpAddress source_ip;
if (!source_ip.FromPackedString(
reinterpret_cast<char*>(&source_addr.sin6_addr), sizeof(in6_addr))) {
QUIC_LOG(WARNING) << "Unable to parse source address.";
source = kUnknownSource;
} else {
source = source_ip.ToString();
}
stats_->OnEvent({Status::REACHABLE, end_ - start_, source});
return true;
}
void IcmpReachable::OnAlarm() {
QuicWriterMutexLock mu(&header_lock_);
if (end_ < start_) {
QUIC_VLOG(1) << "Timed out on sequence: " << icmp_header_.icmp6_seq;
stats_->OnEvent({Status::UNREACHABLE, QuicTime::Delta::Zero(), kNoSource});
}
icmp_header_.icmp6_seq++;
CreateIcmpPacket(src_.sin6_addr, dst_.sin6_addr, icmp_header_, "",
[this](absl::string_view packet) {
QUIC_VLOG(2) << quiche::QuicheTextUtils::HexDump(packet);
ssize_t size = kernel_->sendto(
send_fd_, packet.data(), packet.size(), 0,
reinterpret_cast<struct sockaddr*>(&dst_),
sizeof(sockaddr_in6));
if (size < packet.size()) {
stats_->OnWriteError(errno);
}
start_ = clock_->Now();
});
alarm_->Set(clock_->ApproximateNow() + timeout_);
}
absl::string_view IcmpReachable::StatusName(IcmpReachable::Status status) {
switch (status) {
case REACHABLE:
return "REACHABLE";
case UNREACHABLE:
return "UNREACHABLE";
default:
return "UNKNOWN";
}
}
void IcmpReachable::EpollCallback::OnSocketEvent(QuicEventLoop* event_loop,
SocketFd fd,
QuicSocketEventMask events) {
bool can_read_more = reachable_->OnEvent(fd);
if (can_read_more) {
bool success =
event_loop->ArtificiallyNotifyEvent(fd, kSocketEventReadable);
QUICHE_DCHECK(success);
}
}
} | #include "quiche/quic/qbone/bonnet/icmp_reachable.h"
#include <netinet/ip6.h>
#include <memory>
#include <string>
#include "absl/container/node_hash_map.h"
#include "quiche/quic/core/io/quic_default_event_loop.h"
#include "quiche/quic/core/io/quic_event_loop.h"
#include "quiche/quic/core/quic_default_clock.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/platform/mock_kernel.h"
namespace quic::test {
namespace {
using ::testing::_;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::StrictMock;
constexpr char kSourceAddress[] = "fe80:1:2:3:4::1";
constexpr char kDestinationAddress[] = "fe80:4:3:2:1::1";
constexpr int kFakeWriteFd = 0;
icmp6_hdr GetHeaderFromPacket(const void* buf, size_t len) {
QUICHE_CHECK_GE(len, sizeof(ip6_hdr) + sizeof(icmp6_hdr));
auto* buffer = reinterpret_cast<const char*>(buf);
return *reinterpret_cast<const icmp6_hdr*>(&buffer[sizeof(ip6_hdr)]);
}
class StatsInterface : public IcmpReachable::StatsInterface {
public:
void OnEvent(IcmpReachable::ReachableEvent event) override {
switch (event.status) {
case IcmpReachable::REACHABLE: {
reachable_count_++;
break;
}
case IcmpReachable::UNREACHABLE: {
unreachable_count_++;
break;
}
}
current_source_ = event.source;
}
void OnReadError(int error) override { read_errors_[error]++; }
void OnWriteError(int error) override { write_errors_[error]++; }
bool HasWriteErrors() { return !write_errors_.empty(); }
int WriteErrorCount(int error) { return write_errors_[error]; }
bool HasReadErrors() { return !read_errors_.empty(); }
int ReadErrorCount(int error) { return read_errors_[error]; }
int reachable_count() { return reachable_count_; }
int unreachable_count() { return unreachable_count_; }
std::string current_source() { return current_source_; }
private:
int reachable_count_ = 0;
int unreachable_count_ = 0;
std::string current_source_{};
absl::node_hash_map<int, int> read_errors_;
absl::node_hash_map<int, int> write_errors_;
};
class IcmpReachableTest : public QuicTest {
public:
IcmpReachableTest()
: event_loop_(GetDefaultEventLoop()->Create(QuicDefaultClock::Get())) {
QUICHE_CHECK(source_.FromString(kSourceAddress));
QUICHE_CHECK(destination_.FromString(kDestinationAddress));
int pipe_fds[2];
QUICHE_CHECK(pipe(pipe_fds) >= 0) << "pipe() failed";
read_fd_ = pipe_fds[0];
read_src_fd_ = pipe_fds[1];
}
void SetFdExpectations() {
InSequence seq;
EXPECT_CALL(kernel_, socket(_, _, _)).WillOnce(Return(kFakeWriteFd));
EXPECT_CALL(kernel_, bind(kFakeWriteFd, _, _)).WillOnce(Return(0));
EXPECT_CALL(kernel_, socket(_, _, _)).WillOnce(Return(read_fd_));
EXPECT_CALL(kernel_, bind(read_fd_, _, _)).WillOnce(Return(0));
EXPECT_CALL(kernel_, setsockopt(read_fd_, SOL_ICMPV6, ICMP6_FILTER, _, _));
EXPECT_CALL(kernel_, close(read_fd_)).WillOnce(Invoke([](int fd) {
return close(fd);
}));
}
protected:
QuicIpAddress source_;
QuicIpAddress destination_;
int read_fd_;
int read_src_fd_;
StrictMock<MockKernel> kernel_;
std::unique_ptr<QuicEventLoop> event_loop_;
StatsInterface stats_;
};
TEST_F(IcmpReachableTest, SendsPings) {
IcmpReachable reachable(source_, destination_, QuicTime::Delta::Zero(),
&kernel_, event_loop_.get(), &stats_);
SetFdExpectations();
ASSERT_TRUE(reachable.Init());
EXPECT_CALL(kernel_, sendto(kFakeWriteFd, _, _, _, _, _))
.WillOnce(Invoke([](int sockfd, const void* buf, size_t len, int flags,
const struct sockaddr* dest_addr, socklen_t addrlen) {
auto icmp_header = GetHeaderFromPacket(buf, len);
EXPECT_EQ(icmp_header.icmp6_type, ICMP6_ECHO_REQUEST);
EXPECT_EQ(icmp_header.icmp6_seq, 1);
return len;
}));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_FALSE(stats_.HasWriteErrors());
}
TEST_F(IcmpReachableTest, HandlesUnreachableEvents) {
IcmpReachable reachable(source_, destination_, QuicTime::Delta::Zero(),
&kernel_, event_loop_.get(), &stats_);
SetFdExpectations();
ASSERT_TRUE(reachable.Init());
EXPECT_CALL(kernel_, sendto(kFakeWriteFd, _, _, _, _, _))
.Times(2)
.WillRepeatedly(Invoke([](int sockfd, const void* buf, size_t len,
int flags, const struct sockaddr* dest_addr,
socklen_t addrlen) { return len; }));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_EQ(stats_.unreachable_count(), 0);
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_FALSE(stats_.HasWriteErrors());
EXPECT_EQ(stats_.unreachable_count(), 1);
EXPECT_EQ(stats_.current_source(), kNoSource);
}
TEST_F(IcmpReachableTest, HandlesReachableEvents) {
IcmpReachable reachable(source_, destination_, QuicTime::Delta::Zero(),
&kernel_, event_loop_.get(), &stats_);
SetFdExpectations();
ASSERT_TRUE(reachable.Init());
icmp6_hdr last_request_hdr{};
EXPECT_CALL(kernel_, sendto(kFakeWriteFd, _, _, _, _, _))
.Times(2)
.WillRepeatedly(
Invoke([&last_request_hdr](
int sockfd, const void* buf, size_t len, int flags,
const struct sockaddr* dest_addr, socklen_t addrlen) {
last_request_hdr = GetHeaderFromPacket(buf, len);
return len;
}));
sockaddr_in6 source_addr{};
std::string packed_source = source_.ToPackedString();
memcpy(&source_addr.sin6_addr, packed_source.data(), packed_source.size());
EXPECT_CALL(kernel_, recvfrom(read_fd_, _, _, _, _, _))
.WillOnce(
Invoke([&source_addr](int sockfd, void* buf, size_t len, int flags,
struct sockaddr* src_addr, socklen_t* addrlen) {
*reinterpret_cast<sockaddr_in6*>(src_addr) = source_addr;
return read(sockfd, buf, len);
}));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_EQ(stats_.reachable_count(), 0);
icmp6_hdr response = last_request_hdr;
response.icmp6_type = ICMP6_ECHO_REPLY;
write(read_src_fd_, reinterpret_cast<const void*>(&response),
sizeof(icmp6_hdr));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_FALSE(stats_.HasReadErrors());
EXPECT_FALSE(stats_.HasWriteErrors());
EXPECT_EQ(stats_.reachable_count(), 1);
EXPECT_EQ(stats_.current_source(), source_.ToString());
}
TEST_F(IcmpReachableTest, HandlesWriteErrors) {
IcmpReachable reachable(source_, destination_, QuicTime::Delta::Zero(),
&kernel_, event_loop_.get(), &stats_);
SetFdExpectations();
ASSERT_TRUE(reachable.Init());
EXPECT_CALL(kernel_, sendto(kFakeWriteFd, _, _, _, _, _))
.WillOnce(Invoke([](int sockfd, const void* buf, size_t len, int flags,
const struct sockaddr* dest_addr, socklen_t addrlen) {
errno = EAGAIN;
return 0;
}));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_EQ(stats_.WriteErrorCount(EAGAIN), 1);
}
TEST_F(IcmpReachableTest, HandlesReadErrors) {
IcmpReachable reachable(source_, destination_, QuicTime::Delta::Zero(),
&kernel_, event_loop_.get(), &stats_);
SetFdExpectations();
ASSERT_TRUE(reachable.Init());
EXPECT_CALL(kernel_, sendto(kFakeWriteFd, _, _, _, _, _))
.WillOnce(Invoke([](int sockfd, const void* buf, size_t len, int flags,
const struct sockaddr* dest_addr,
socklen_t addrlen) { return len; }));
EXPECT_CALL(kernel_, recvfrom(read_fd_, _, _, _, _, _))
.WillOnce(Invoke([](int sockfd, void* buf, size_t len, int flags,
struct sockaddr* src_addr, socklen_t* addrlen) {
errno = EIO;
return -1;
}));
icmp6_hdr response{};
write(read_src_fd_, reinterpret_cast<const void*>(&response),
sizeof(icmp6_hdr));
event_loop_->RunEventLoopOnce(QuicTime::Delta::FromSeconds(1));
EXPECT_EQ(stats_.reachable_count(), 0);
EXPECT_EQ(stats_.ReadErrorCount(EIO), 1);
}
}
} |
223 | cpp | google/quiche | tun_device_controller | quiche/quic/qbone/bonnet/tun_device_controller.cc | quiche/quic/qbone/bonnet/tun_device_controller_test.cc | #ifndef QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_CONTROLLER_H_
#define QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_CONTROLLER_H_
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/qbone/bonnet/tun_device.h"
#include "quiche/quic/qbone/platform/netlink_interface.h"
#include "quiche/quic/qbone/qbone_control.pb.h"
#include "quiche/quic/qbone/qbone_control_stream.h"
#include "quiche/common/quiche_callbacks.h"
namespace quic {
class TunDeviceController {
public:
TunDeviceController(std::string ifname, bool setup_tun,
NetlinkInterface* netlink)
: ifname_(std::move(ifname)), setup_tun_(setup_tun), netlink_(netlink) {}
TunDeviceController(const TunDeviceController&) = delete;
TunDeviceController& operator=(const TunDeviceController&) = delete;
TunDeviceController(TunDeviceController&&) = delete;
TunDeviceController& operator=(TunDeviceController&&) = delete;
virtual ~TunDeviceController() = default;
virtual bool UpdateAddress(const IpRange& desired_range);
virtual bool UpdateRoutes(const IpRange& desired_range,
const std::vector<IpRange>& desired_routes);
virtual bool UpdateRoutesWithRetries(
const IpRange& desired_range, const std::vector<IpRange>& desired_routes,
int retries);
virtual void RegisterAddressUpdateCallback(
quiche::MultiUseCallback<void(QuicIpAddress)> cb);
virtual QuicIpAddress current_address();
private:
bool UpdateRules(IpRange desired_range);
const std::string ifname_;
const bool setup_tun_;
NetlinkInterface* netlink_;
QuicIpAddress current_address_;
std::vector<quiche::MultiUseCallback<void(QuicIpAddress)>>
address_update_cbs_;
};
}
#endif
#include "quiche/quic/qbone/bonnet/tun_device_controller.h"
#include <linux/rtnetlink.h>
#include <utility>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/time/clock.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/qbone/qbone_constants.h"
#include "quiche/common/quiche_callbacks.h"
ABSL_FLAG(bool, qbone_tun_device_replace_default_routing_rules, true,
"If true, will define a rule that points packets sourced from the "
"qbone interface to the qbone table. This is unnecessary in "
"environments with no other ipv6 route.");
ABSL_RETIRED_FLAG(int, qbone_route_init_cwnd, 0,
"Deprecated. Code no longer modifies initcwnd.");
namespace quic {
bool TunDeviceController::UpdateAddress(const IpRange& desired_range) {
if (!setup_tun_) {
return true;
}
NetlinkInterface::LinkInfo link_info{};
if (!netlink_->GetLinkInfo(ifname_, &link_info)) {
return false;
}
std::vector<NetlinkInterface::AddressInfo> addresses;
if (!netlink_->GetAddresses(link_info.index, 0, &addresses, nullptr)) {
return false;
}
QuicIpAddress desired_address = desired_range.FirstAddressInRange();
for (const auto& address : addresses) {
if (!netlink_->ChangeLocalAddress(
link_info.index, NetlinkInterface::Verb::kRemove,
address.interface_address, address.prefix_length, 0, 0, {})) {
return false;
}
}
bool address_updated = netlink_->ChangeLocalAddress(
link_info.index, NetlinkInterface::Verb::kAdd, desired_address,
desired_range.prefix_length(), IFA_F_PERMANENT | IFA_F_NODAD,
RT_SCOPE_LINK, {});
if (address_updated) {
current_address_ = desired_address;
for (const auto& cb : address_update_cbs_) {
cb(current_address_);
}
}
return address_updated;
}
bool TunDeviceController::UpdateRoutes(
const IpRange& desired_range, const std::vector<IpRange>& desired_routes) {
if (!setup_tun_) {
return true;
}
NetlinkInterface::LinkInfo link_info{};
if (!netlink_->GetLinkInfo(ifname_, &link_info)) {
QUIC_LOG(ERROR) << "Could not get link info for interface <" << ifname_
<< ">";
return false;
}
std::vector<NetlinkInterface::RoutingRule> routing_rules;
if (!netlink_->GetRouteInfo(&routing_rules)) {
QUIC_LOG(ERROR) << "Unable to get route info";
return false;
}
for (const auto& rule : routing_rules) {
if (rule.out_interface == link_info.index &&
rule.table == QboneConstants::kQboneRouteTableId) {
if (!netlink_->ChangeRoute(NetlinkInterface::Verb::kRemove, rule.table,
rule.destination_subnet, rule.scope,
rule.preferred_source, rule.out_interface)) {
QUIC_LOG(ERROR) << "Unable to remove old route to <"
<< rule.destination_subnet.ToString() << ">";
return false;
}
}
}
if (!UpdateRules(desired_range)) {
return false;
}
QuicIpAddress desired_address = desired_range.FirstAddressInRange();
std::vector<IpRange> routes(desired_routes.begin(), desired_routes.end());
routes.emplace_back(*QboneConstants::TerminatorLocalAddressRange());
for (const auto& route : routes) {
if (!netlink_->ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId, route,
RT_SCOPE_LINK, desired_address,
link_info.index)) {
QUIC_LOG(ERROR) << "Unable to add route <" << route.ToString() << ">";
return false;
}
}
return true;
}
bool TunDeviceController::UpdateRoutesWithRetries(
const IpRange& desired_range, const std::vector<IpRange>& desired_routes,
int retries) {
while (retries-- > 0) {
if (UpdateRoutes(desired_range, desired_routes)) {
return true;
}
absl::SleepFor(absl::Milliseconds(100));
}
return false;
}
bool TunDeviceController::UpdateRules(IpRange desired_range) {
if (!absl::GetFlag(FLAGS_qbone_tun_device_replace_default_routing_rules)) {
return true;
}
std::vector<NetlinkInterface::IpRule> ip_rules;
if (!netlink_->GetRuleInfo(&ip_rules)) {
QUIC_LOG(ERROR) << "Unable to get rule info";
return false;
}
for (const auto& rule : ip_rules) {
if (rule.table == QboneConstants::kQboneRouteTableId) {
if (!netlink_->ChangeRule(NetlinkInterface::Verb::kRemove, rule.table,
rule.source_range)) {
QUIC_LOG(ERROR) << "Unable to remove old rule for table <" << rule.table
<< "> from source <" << rule.source_range.ToString()
<< ">";
return false;
}
}
}
if (!netlink_->ChangeRule(NetlinkInterface::Verb::kAdd,
QboneConstants::kQboneRouteTableId,
desired_range)) {
QUIC_LOG(ERROR) << "Unable to add rule for <" << desired_range.ToString()
<< ">";
return false;
}
return true;
}
QuicIpAddress TunDeviceController::current_address() {
return current_address_;
}
void TunDeviceController::RegisterAddressUpdateCallback(
quiche::MultiUseCallback<void(QuicIpAddress)> cb) {
address_update_cbs_.push_back(std::move(cb));
}
} | #include "quiche/quic/qbone/bonnet/tun_device_controller.h"
#include <linux/if_addr.h>
#include <linux/rtnetlink.h>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/platform/mock_netlink.h"
#include "quiche/quic/qbone/qbone_constants.h"
ABSL_DECLARE_FLAG(bool, qbone_tun_device_replace_default_routing_rules);
ABSL_DECLARE_FLAG(int, qbone_route_init_cwnd);
namespace quic::test {
namespace {
using ::testing::Eq;
constexpr int kIfindex = 42;
constexpr char kIfname[] = "qbone0";
const IpRange kIpRange = []() {
IpRange range;
QCHECK(range.FromString("2604:31c0:2::/64"));
return range;
}();
constexpr char kOldAddress[] = "1.2.3.4";
constexpr int kOldPrefixLen = 24;
using ::testing::_;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::StrictMock;
MATCHER_P(IpRangeEq, range,
absl::StrCat("expected IpRange to equal ", range.ToString())) {
return arg == range;
}
class TunDeviceControllerTest : public QuicTest {
public:
TunDeviceControllerTest()
: controller_(kIfname, true, &netlink_),
link_local_range_(*QboneConstants::TerminatorLocalAddressRange()) {
controller_.RegisterAddressUpdateCallback(
[this](QuicIpAddress address) { notified_address_ = address; });
}
protected:
void ExpectLinkInfo(const std::string& interface_name, int ifindex) {
EXPECT_CALL(netlink_, GetLinkInfo(interface_name, _))
.WillOnce(Invoke([ifindex](absl::string_view ifname,
NetlinkInterface::LinkInfo* link_info) {
link_info->index = ifindex;
return true;
}));
}
MockNetlink netlink_;
TunDeviceController controller_;
QuicIpAddress notified_address_;
IpRange link_local_range_;
};
TEST_F(TunDeviceControllerTest, AddressAppliedWhenNoneExisted) {
ExpectLinkInfo(kIfname, kIfindex);
EXPECT_CALL(netlink_, GetAddresses(kIfindex, _, _, _)).WillOnce(Return(true));
EXPECT_CALL(netlink_,
ChangeLocalAddress(
kIfindex, NetlinkInterface::Verb::kAdd,
kIpRange.FirstAddressInRange(), kIpRange.prefix_length(),
IFA_F_PERMANENT | IFA_F_NODAD, RT_SCOPE_LINK, _))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateAddress(kIpRange));
EXPECT_THAT(notified_address_, Eq(kIpRange.FirstAddressInRange()));
}
TEST_F(TunDeviceControllerTest, OldAddressesAreRemoved) {
ExpectLinkInfo(kIfname, kIfindex);
EXPECT_CALL(netlink_, GetAddresses(kIfindex, _, _, _))
.WillOnce(Invoke([](int interface_index, uint8_t unwanted_flags,
std::vector<NetlinkInterface::AddressInfo>* addresses,
int* num_ipv6_nodad_dadfailed_addresses) {
NetlinkInterface::AddressInfo info{};
info.interface_address.FromString(kOldAddress);
info.prefix_length = kOldPrefixLen;
addresses->emplace_back(info);
return true;
}));
QuicIpAddress old_address;
old_address.FromString(kOldAddress);
EXPECT_CALL(netlink_,
ChangeLocalAddress(kIfindex, NetlinkInterface::Verb::kRemove,
old_address, kOldPrefixLen, _, _, _))
.WillOnce(Return(true));
EXPECT_CALL(netlink_,
ChangeLocalAddress(
kIfindex, NetlinkInterface::Verb::kAdd,
kIpRange.FirstAddressInRange(), kIpRange.prefix_length(),
IFA_F_PERMANENT | IFA_F_NODAD, RT_SCOPE_LINK, _))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateAddress(kIpRange));
EXPECT_THAT(notified_address_, Eq(kIpRange.FirstAddressInRange()));
}
TEST_F(TunDeviceControllerTest, UpdateRoutesRemovedOldRoutes) {
ExpectLinkInfo(kIfname, kIfindex);
const int num_matching_routes = 3;
EXPECT_CALL(netlink_, GetRouteInfo(_))
.WillOnce(
Invoke([](std::vector<NetlinkInterface::RoutingRule>* routing_rules) {
NetlinkInterface::RoutingRule non_matching_route{};
non_matching_route.table = QboneConstants::kQboneRouteTableId;
non_matching_route.out_interface = kIfindex + 1;
routing_rules->push_back(non_matching_route);
NetlinkInterface::RoutingRule matching_route{};
matching_route.table = QboneConstants::kQboneRouteTableId;
matching_route.out_interface = kIfindex;
for (int i = 0; i < num_matching_routes; i++) {
routing_rules->push_back(matching_route);
}
NetlinkInterface::RoutingRule non_matching_table{};
non_matching_table.table = QboneConstants::kQboneRouteTableId + 1;
non_matching_table.out_interface = kIfindex;
routing_rules->push_back(non_matching_table);
return true;
}));
EXPECT_CALL(netlink_, ChangeRoute(NetlinkInterface::Verb::kRemove,
QboneConstants::kQboneRouteTableId, _, _, _,
kIfindex))
.Times(num_matching_routes)
.WillRepeatedly(Return(true));
EXPECT_CALL(netlink_, GetRuleInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, ChangeRule(NetlinkInterface::Verb::kAdd,
QboneConstants::kQboneRouteTableId,
IpRangeEq(kIpRange)))
.WillOnce(Return(true));
EXPECT_CALL(netlink_,
ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(link_local_range_), _, _, kIfindex))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateRoutes(kIpRange, {}));
}
TEST_F(TunDeviceControllerTest, UpdateRoutesAddsNewRoutes) {
ExpectLinkInfo(kIfname, kIfindex);
EXPECT_CALL(netlink_, GetRouteInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, GetRuleInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(kIpRange), _, _, kIfindex))
.Times(2)
.WillRepeatedly(Return(true))
.RetiresOnSaturation();
EXPECT_CALL(netlink_, ChangeRule(NetlinkInterface::Verb::kAdd,
QboneConstants::kQboneRouteTableId,
IpRangeEq(kIpRange)))
.WillOnce(Return(true));
EXPECT_CALL(netlink_,
ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(link_local_range_), _, _, kIfindex))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateRoutes(kIpRange, {kIpRange, kIpRange}));
}
TEST_F(TunDeviceControllerTest, EmptyUpdateRouteKeepsLinkLocalRoute) {
ExpectLinkInfo(kIfname, kIfindex);
EXPECT_CALL(netlink_, GetRouteInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, GetRuleInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, ChangeRule(NetlinkInterface::Verb::kAdd,
QboneConstants::kQboneRouteTableId,
IpRangeEq(kIpRange)))
.WillOnce(Return(true));
EXPECT_CALL(netlink_,
ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(link_local_range_), _, _, kIfindex))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateRoutes(kIpRange, {}));
}
TEST_F(TunDeviceControllerTest, DisablingRoutingRulesSkipsRuleCreation) {
absl::SetFlag(&FLAGS_qbone_tun_device_replace_default_routing_rules, false);
ExpectLinkInfo(kIfname, kIfindex);
EXPECT_CALL(netlink_, GetRouteInfo(_)).WillOnce(Return(true));
EXPECT_CALL(netlink_, ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(kIpRange), _, _, kIfindex))
.Times(2)
.WillRepeatedly(Return(true))
.RetiresOnSaturation();
EXPECT_CALL(netlink_,
ChangeRoute(NetlinkInterface::Verb::kReplace,
QboneConstants::kQboneRouteTableId,
IpRangeEq(link_local_range_), _, _, kIfindex))
.WillOnce(Return(true));
EXPECT_TRUE(controller_.UpdateRoutes(kIpRange, {kIpRange, kIpRange}));
}
class DisabledTunDeviceControllerTest : public QuicTest {
public:
DisabledTunDeviceControllerTest()
: controller_(kIfname, false, &netlink_),
link_local_range_(*QboneConstants::TerminatorLocalAddressRange()) {}
StrictMock<MockNetlink> netlink_;
TunDeviceController controller_;
IpRange link_local_range_;
};
TEST_F(DisabledTunDeviceControllerTest, UpdateRoutesIsNop) {
EXPECT_THAT(controller_.UpdateRoutes(kIpRange, {}), Eq(true));
}
TEST_F(DisabledTunDeviceControllerTest, UpdateAddressIsNop) {
EXPECT_THAT(controller_.UpdateAddress(kIpRange), Eq(true));
}
}
} |
224 | cpp | google/quiche | tun_device | quiche/quic/qbone/bonnet/tun_device.cc | quiche/quic/qbone/bonnet/tun_device_test.cc | #ifndef QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_H_
#define QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_H_
#include <string>
#include <vector>
#include "quiche/quic/qbone/bonnet/tun_device_interface.h"
#include "quiche/quic/qbone/platform/kernel_interface.h"
namespace quic {
class TunTapDevice : public TunDeviceInterface {
public:
TunTapDevice(const std::string& interface_name, int mtu, bool persist,
bool setup_tun, bool is_tap, KernelInterface* kernel);
~TunTapDevice() override;
bool Init() override;
bool Up() override;
bool Down() override;
void CloseDevice() override;
int GetFileDescriptor() const override;
private:
bool OpenDevice();
bool ConfigureInterface();
bool CheckFeatures(int tun_device_fd);
bool NetdeviceIoctl(int request, void* argp);
const std::string interface_name_;
const int mtu_;
const bool persist_;
const bool setup_tun_;
const bool is_tap_;
int file_descriptor_;
KernelInterface& kernel_;
};
}
#endif
#include "quiche/quic/qbone/bonnet/tun_device.h"
#include <fcntl.h>
#include <linux/if_tun.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <ios>
#include <string>
#include "absl/cleanup/cleanup.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/qbone/platform/kernel_interface.h"
ABSL_FLAG(std::string, qbone_client_tun_device_path, "/dev/net/tun",
"The path to the QBONE client's TUN device.");
namespace quic {
const int kInvalidFd = -1;
TunTapDevice::TunTapDevice(const std::string& interface_name, int mtu,
bool persist, bool setup_tun, bool is_tap,
KernelInterface* kernel)
: interface_name_(interface_name),
mtu_(mtu),
persist_(persist),
setup_tun_(setup_tun),
is_tap_(is_tap),
file_descriptor_(kInvalidFd),
kernel_(*kernel) {}
TunTapDevice::~TunTapDevice() {
if (!persist_) {
Down();
}
CloseDevice();
}
bool TunTapDevice::Init() {
if (interface_name_.empty() || interface_name_.size() >= IFNAMSIZ) {
QUIC_BUG(quic_bug_10995_1)
<< "interface_name must be nonempty and shorter than " << IFNAMSIZ;
return false;
}
if (!OpenDevice()) {
return false;
}
if (!ConfigureInterface()) {
return false;
}
return true;
}
bool TunTapDevice::Up() {
if (!setup_tun_) {
return true;
}
struct ifreq if_request;
memset(&if_request, 0, sizeof(if_request));
interface_name_.copy(if_request.ifr_name, IFNAMSIZ);
if_request.ifr_flags = IFF_UP;
return NetdeviceIoctl(SIOCSIFFLAGS, reinterpret_cast<void*>(&if_request));
}
bool TunTapDevice::Down() {
if (!setup_tun_) {
return true;
}
struct ifreq if_request;
memset(&if_request, 0, sizeof(if_request));
interface_name_.copy(if_request.ifr_name, IFNAMSIZ);
if_request.ifr_flags = 0;
return NetdeviceIoctl(SIOCSIFFLAGS, reinterpret_cast<void*>(&if_request));
}
int TunTapDevice::GetFileDescriptor() const { return file_descriptor_; }
bool TunTapDevice::OpenDevice() {
if (file_descriptor_ != kInvalidFd) {
CloseDevice();
}
struct ifreq if_request;
memset(&if_request, 0, sizeof(if_request));
interface_name_.copy(if_request.ifr_name, IFNAMSIZ);
if_request.ifr_flags = IFF_MULTI_QUEUE | IFF_NO_PI;
if (is_tap_) {
if_request.ifr_flags |= IFF_TAP;
} else {
if_request.ifr_flags |= IFF_TUN;
}
bool successfully_opened = false;
auto cleanup = absl::MakeCleanup([this, &successfully_opened]() {
if (!successfully_opened) {
CloseDevice();
}
});
const std::string tun_device_path =
absl::GetFlag(FLAGS_qbone_client_tun_device_path);
int fd = kernel_.open(tun_device_path.c_str(), O_RDWR);
if (fd < 0) {
QUIC_PLOG(WARNING) << "Failed to open " << tun_device_path;
return successfully_opened;
}
file_descriptor_ = fd;
if (!CheckFeatures(fd)) {
return successfully_opened;
}
if (kernel_.ioctl(fd, TUNSETIFF, reinterpret_cast<void*>(&if_request)) != 0) {
QUIC_PLOG(WARNING) << "Failed to TUNSETIFF on fd(" << fd << ")";
return successfully_opened;
}
if (kernel_.ioctl(
fd, TUNSETPERSIST,
persist_ ? reinterpret_cast<void*>(&if_request) : nullptr) != 0) {
QUIC_PLOG(WARNING) << "Failed to TUNSETPERSIST on fd(" << fd << ")";
return successfully_opened;
}
successfully_opened = true;
return successfully_opened;
}
bool TunTapDevice::ConfigureInterface() {
if (!setup_tun_) {
return true;
}
struct ifreq if_request;
memset(&if_request, 0, sizeof(if_request));
interface_name_.copy(if_request.ifr_name, IFNAMSIZ);
if_request.ifr_mtu = mtu_;
if (!NetdeviceIoctl(SIOCSIFMTU, reinterpret_cast<void*>(&if_request))) {
CloseDevice();
return false;
}
return true;
}
bool TunTapDevice::CheckFeatures(int tun_device_fd) {
unsigned int actual_features;
if (kernel_.ioctl(tun_device_fd, TUNGETFEATURES, &actual_features) != 0) {
QUIC_PLOG(WARNING) << "Failed to TUNGETFEATURES";
return false;
}
unsigned int required_features = IFF_TUN | IFF_NO_PI;
if ((required_features & actual_features) != required_features) {
QUIC_LOG(WARNING)
<< "Required feature does not exist. required_features: 0x" << std::hex
<< required_features << " vs actual_features: 0x" << std::hex
<< actual_features;
return false;
}
return true;
}
bool TunTapDevice::NetdeviceIoctl(int request, void* argp) {
int fd = kernel_.socket(AF_INET6, SOCK_DGRAM, 0);
if (fd < 0) {
QUIC_PLOG(WARNING) << "Failed to create AF_INET6 socket.";
return false;
}
if (kernel_.ioctl(fd, request, argp) != 0) {
QUIC_PLOG(WARNING) << "Failed ioctl request: " << request;
kernel_.close(fd);
return false;
}
kernel_.close(fd);
return true;
}
void TunTapDevice::CloseDevice() {
if (file_descriptor_ != kInvalidFd) {
kernel_.close(file_descriptor_);
file_descriptor_ = kInvalidFd;
}
}
} | #include "quiche/quic/qbone/bonnet/tun_device.h"
#include <linux/if.h>
#include <linux/if_tun.h>
#include <sys/ioctl.h>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/platform/mock_kernel.h"
namespace quic::test {
namespace {
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::StrEq;
using ::testing::Unused;
const char kDeviceName[] = "tun0";
const int kSupportedFeatures =
IFF_TUN | IFF_TAP | IFF_MULTI_QUEUE | IFF_ONE_QUEUE | IFF_NO_PI;
class TunDeviceTest : public QuicTest {
protected:
void SetUp() override {
EXPECT_CALL(mock_kernel_, socket(AF_INET6, _, _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([this](Unused, Unused, Unused) {
EXPECT_CALL(mock_kernel_, close(next_fd_)).WillOnce(Return(0));
return next_fd_++;
}));
}
void SetInitExpectations(int mtu, bool persist) {
EXPECT_CALL(mock_kernel_, open(StrEq("/dev/net/tun"), _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([this](Unused, Unused) {
EXPECT_CALL(mock_kernel_, close(next_fd_)).WillOnce(Return(0));
return next_fd_++;
}));
EXPECT_CALL(mock_kernel_, ioctl(_, TUNGETFEATURES, _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([](Unused, Unused, void* argp) {
auto* actual_flags = reinterpret_cast<int*>(argp);
*actual_flags = kSupportedFeatures;
return 0;
}));
EXPECT_CALL(mock_kernel_, ioctl(_, TUNSETIFF, _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([](Unused, Unused, void* argp) {
auto* ifr = reinterpret_cast<struct ifreq*>(argp);
EXPECT_EQ(IFF_TUN | IFF_MULTI_QUEUE | IFF_NO_PI, ifr->ifr_flags);
EXPECT_THAT(ifr->ifr_name, StrEq(kDeviceName));
return 0;
}));
EXPECT_CALL(mock_kernel_, ioctl(_, TUNSETPERSIST, _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([persist](Unused, Unused, void* argp) {
auto* ifr = reinterpret_cast<struct ifreq*>(argp);
if (persist) {
EXPECT_THAT(ifr->ifr_name, StrEq(kDeviceName));
} else {
EXPECT_EQ(nullptr, ifr);
}
return 0;
}));
EXPECT_CALL(mock_kernel_, ioctl(_, SIOCSIFMTU, _))
.Times(AnyNumber())
.WillRepeatedly(Invoke([mtu](Unused, Unused, void* argp) {
auto* ifr = reinterpret_cast<struct ifreq*>(argp);
EXPECT_EQ(mtu, ifr->ifr_mtu);
EXPECT_THAT(ifr->ifr_name, StrEq(kDeviceName));
return 0;
}));
}
void ExpectUp(bool fail) {
EXPECT_CALL(mock_kernel_, ioctl(_, SIOCSIFFLAGS, _))
.WillOnce(Invoke([fail](Unused, Unused, void* argp) {
auto* ifr = reinterpret_cast<struct ifreq*>(argp);
EXPECT_TRUE(ifr->ifr_flags & IFF_UP);
EXPECT_THAT(ifr->ifr_name, StrEq(kDeviceName));
if (fail) {
return -1;
} else {
return 0;
}
}));
}
void ExpectDown(bool fail) {
EXPECT_CALL(mock_kernel_, ioctl(_, SIOCSIFFLAGS, _))
.WillOnce(Invoke([fail](Unused, Unused, void* argp) {
auto* ifr = reinterpret_cast<struct ifreq*>(argp);
EXPECT_FALSE(ifr->ifr_flags & IFF_UP);
EXPECT_THAT(ifr->ifr_name, StrEq(kDeviceName));
if (fail) {
return -1;
} else {
return 0;
}
}));
}
MockKernel mock_kernel_;
int next_fd_ = 100;
};
TEST_F(TunDeviceTest, BasicWorkFlow) {
SetInitExpectations( 1500, false);
TunTapDevice tun_device(kDeviceName, 1500, false, true, false, &mock_kernel_);
EXPECT_TRUE(tun_device.Init());
EXPECT_GT(tun_device.GetFileDescriptor(), -1);
ExpectUp( false);
EXPECT_TRUE(tun_device.Up());
ExpectDown( false);
}
TEST_F(TunDeviceTest, FailToOpenTunDevice) {
SetInitExpectations( 1500, false);
EXPECT_CALL(mock_kernel_, open(StrEq("/dev/net/tun"), _))
.WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, false, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
ExpectDown(false);
}
TEST_F(TunDeviceTest, FailToCheckFeature) {
SetInitExpectations( 1500, false);
EXPECT_CALL(mock_kernel_, ioctl(_, TUNGETFEATURES, _)).WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, false, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
ExpectDown(false);
}
TEST_F(TunDeviceTest, TooFewFeature) {
SetInitExpectations( 1500, false);
EXPECT_CALL(mock_kernel_, ioctl(_, TUNGETFEATURES, _))
.WillOnce(Invoke([](Unused, Unused, void* argp) {
int* actual_features = reinterpret_cast<int*>(argp);
*actual_features = IFF_TUN | IFF_ONE_QUEUE;
return 0;
}));
TunTapDevice tun_device(kDeviceName, 1500, false, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
ExpectDown(false);
}
TEST_F(TunDeviceTest, FailToSetFlag) {
SetInitExpectations( 1500, true);
EXPECT_CALL(mock_kernel_, ioctl(_, TUNSETIFF, _)).WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, true, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
}
TEST_F(TunDeviceTest, FailToPersistDevice) {
SetInitExpectations( 1500, true);
EXPECT_CALL(mock_kernel_, ioctl(_, TUNSETPERSIST, _)).WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, true, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
}
TEST_F(TunDeviceTest, FailToOpenSocket) {
SetInitExpectations( 1500, true);
EXPECT_CALL(mock_kernel_, socket(AF_INET6, _, _)).WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, true, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
}
TEST_F(TunDeviceTest, FailToSetMtu) {
SetInitExpectations( 1500, true);
EXPECT_CALL(mock_kernel_, ioctl(_, SIOCSIFMTU, _)).WillOnce(Return(-1));
TunTapDevice tun_device(kDeviceName, 1500, true, true, false, &mock_kernel_);
EXPECT_FALSE(tun_device.Init());
EXPECT_EQ(tun_device.GetFileDescriptor(), -1);
}
TEST_F(TunDeviceTest, FailToUp) {
SetInitExpectations( 1500, true);
TunTapDevice tun_device(kDeviceName, 1500, true, true, false, &mock_kernel_);
EXPECT_TRUE(tun_device.Init());
EXPECT_GT(tun_device.GetFileDescriptor(), -1);
ExpectUp( true);
EXPECT_FALSE(tun_device.Up());
}
}
} |
225 | cpp | google/quiche | qbone_tunnel_silo | quiche/quic/qbone/bonnet/qbone_tunnel_silo.cc | quiche/quic/qbone/bonnet/qbone_tunnel_silo_test.cc | #ifndef QUICHE_QUIC_QBONE_BONNET_QBONE_TUNNEL_SILO_H_
#define QUICHE_QUIC_QBONE_BONNET_QBONE_TUNNEL_SILO_H_
#include "absl/synchronization/notification.h"
#include "quiche/quic/platform/api/quic_thread.h"
#include "quiche/quic/qbone/bonnet/qbone_tunnel_interface.h"
namespace quic {
class QboneTunnelSilo : public QuicThread {
public:
explicit QboneTunnelSilo(QboneTunnelInterface* tunnel, bool only_setup_tun)
: QuicThread("QboneTunnelSilo"),
tunnel_(tunnel),
only_setup_tun_(only_setup_tun) {}
QboneTunnelSilo(const QboneTunnelSilo&) = delete;
QboneTunnelSilo& operator=(const QboneTunnelSilo&) = delete;
QboneTunnelSilo(QboneTunnelSilo&&) = delete;
QboneTunnelSilo& operator=(QboneTunnelSilo&&) = delete;
void Quit();
protected:
void Run() override;
private:
bool ShouldRun();
QboneTunnelInterface* tunnel_;
absl::Notification quitting_;
const bool only_setup_tun_;
};
}
#endif
#include "quiche/quic/qbone/bonnet/qbone_tunnel_silo.h"
namespace quic {
void QboneTunnelSilo::Run() {
while (ShouldRun()) {
tunnel_->WaitForEvents();
}
QUIC_LOG(INFO) << "Tunnel has disconnected in state: "
<< tunnel_->StateToString(tunnel_->Disconnect());
}
void QboneTunnelSilo::Quit() {
QUIC_LOG(INFO) << "Quit called on QboneTunnelSilo";
quitting_.Notify();
tunnel_->Wake();
}
bool QboneTunnelSilo::ShouldRun() {
bool post_init_shutdown_ready =
only_setup_tun_ &&
tunnel_->state() == quic::QboneTunnelInterface::STARTED;
return !quitting_.HasBeenNotified() && !post_init_shutdown_ready;
}
} | #include "quiche/quic/qbone/bonnet/qbone_tunnel_silo.h"
#include "absl/synchronization/notification.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/qbone/bonnet/mock_qbone_tunnel.h"
namespace quic {
namespace {
using ::testing::Eq;
using ::testing::Invoke;
using ::testing::Return;
TEST(QboneTunnelSiloTest, SiloRunsEventLoop) {
MockQboneTunnel mock_tunnel;
absl::Notification event_loop_run;
EXPECT_CALL(mock_tunnel, WaitForEvents)
.WillRepeatedly(Invoke([&event_loop_run]() {
if (!event_loop_run.HasBeenNotified()) {
event_loop_run.Notify();
}
return false;
}));
QboneTunnelSilo silo(&mock_tunnel, false);
silo.Start();
event_loop_run.WaitForNotification();
absl::Notification client_disconnected;
EXPECT_CALL(mock_tunnel, Disconnect)
.WillOnce(Invoke([&client_disconnected]() {
client_disconnected.Notify();
return QboneTunnelInterface::ENDED;
}));
silo.Quit();
client_disconnected.WaitForNotification();
silo.Join();
}
TEST(QboneTunnelSiloTest, SiloCanShutDownAfterInit) {
MockQboneTunnel mock_tunnel;
int iteration_count = 0;
EXPECT_CALL(mock_tunnel, WaitForEvents)
.WillRepeatedly(Invoke([&iteration_count]() {
iteration_count++;
return false;
}));
EXPECT_CALL(mock_tunnel, state)
.WillOnce(Return(QboneTunnelInterface::START_REQUESTED))
.WillOnce(Return(QboneTunnelInterface::STARTED));
absl::Notification client_disconnected;
EXPECT_CALL(mock_tunnel, Disconnect)
.WillOnce(Invoke([&client_disconnected]() {
client_disconnected.Notify();
return QboneTunnelInterface::ENDED;
}));
QboneTunnelSilo silo(&mock_tunnel, true);
silo.Start();
client_disconnected.WaitForNotification();
silo.Join();
EXPECT_THAT(iteration_count, Eq(1));
}
}
} |
226 | cpp | google/quiche | quic_trace_visitor | quiche/quic/core/quic_trace_visitor.cc | quiche/quic/core/quic_trace_visitor_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_TRACE_VISITOR_H_
#define QUICHE_QUIC_CORE_QUIC_TRACE_VISITOR_H_
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_types.h"
#include "quic_trace/quic_trace.pb.h"
namespace quic {
class QUICHE_NO_EXPORT QuicTraceVisitor : public QuicConnectionDebugVisitor {
public:
explicit QuicTraceVisitor(const QuicConnection* connection);
void OnPacketSent(QuicPacketNumber packet_number,
QuicPacketLength packet_length, bool has_crypto_handshake,
TransmissionType transmission_type,
EncryptionLevel encryption_level,
const QuicFrames& retransmittable_frames,
const QuicFrames& nonretransmittable_frames,
QuicTime sent_time, uint32_t batch_id) override;
void OnIncomingAck(QuicPacketNumber ack_packet_number,
EncryptionLevel ack_decrypted_level,
const QuicAckFrame& ack_frame, QuicTime ack_receive_time,
QuicPacketNumber largest_observed, bool rtt_updated,
QuicPacketNumber least_unacked_sent_packet) override;
void OnPacketLoss(QuicPacketNumber lost_packet_number,
EncryptionLevel encryption_level,
TransmissionType transmission_type,
QuicTime detection_time) override;
void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame,
const QuicTime& receive_time) override;
void OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& version) override;
void OnApplicationLimited() override;
void OnAdjustNetworkParameters(QuicBandwidth bandwidth, QuicTime::Delta rtt,
QuicByteCount old_cwnd,
QuicByteCount new_cwnd) override;
quic_trace::Trace* trace() { return &trace_; }
private:
uint64_t ConvertTimestampToRecordedFormat(QuicTime timestamp);
void PopulateFrameInfo(const QuicFrame& frame,
quic_trace::Frame* frame_record);
void PopulateTransportState(quic_trace::TransportState* state);
quic_trace::Trace trace_;
const QuicConnection* connection_;
const QuicTime start_time_;
};
}
#endif
#include "quiche/quic/core/quic_trace_visitor.h"
#include <string>
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
quic_trace::EncryptionLevel EncryptionLevelToProto(EncryptionLevel level) {
switch (level) {
case ENCRYPTION_INITIAL:
return quic_trace::ENCRYPTION_INITIAL;
case ENCRYPTION_HANDSHAKE:
return quic_trace::ENCRYPTION_HANDSHAKE;
case ENCRYPTION_ZERO_RTT:
return quic_trace::ENCRYPTION_0RTT;
case ENCRYPTION_FORWARD_SECURE:
return quic_trace::ENCRYPTION_1RTT;
case NUM_ENCRYPTION_LEVELS:
QUIC_BUG(EncryptionLevelToProto.Invalid)
<< "Invalid encryption level specified";
return quic_trace::ENCRYPTION_UNKNOWN;
}
QUIC_BUG(EncryptionLevelToProto.Unknown)
<< "Unknown encryption level specified " << static_cast<int>(level);
return quic_trace::ENCRYPTION_UNKNOWN;
}
QuicTraceVisitor::QuicTraceVisitor(const QuicConnection* connection)
: connection_(connection),
start_time_(connection_->clock()->ApproximateNow()) {
std::string binary_connection_id(connection->connection_id().data(),
connection->connection_id().length());
switch (connection->perspective()) {
case Perspective::IS_CLIENT:
trace_.set_destination_connection_id(binary_connection_id);
break;
case Perspective::IS_SERVER:
trace_.set_source_connection_id(binary_connection_id);
break;
}
}
void QuicTraceVisitor::OnPacketSent(
QuicPacketNumber packet_number, QuicPacketLength packet_length,
bool , TransmissionType ,
EncryptionLevel encryption_level, const QuicFrames& retransmittable_frames,
const QuicFrames& , QuicTime sent_time,
uint32_t ) {
quic_trace::Event* event = trace_.add_events();
event->set_event_type(quic_trace::PACKET_SENT);
event->set_time_us(ConvertTimestampToRecordedFormat(sent_time));
event->set_packet_number(packet_number.ToUint64());
event->set_packet_size(packet_length);
event->set_encryption_level(EncryptionLevelToProto(encryption_level));
for (const QuicFrame& frame : retransmittable_frames) {
switch (frame.type) {
case STREAM_FRAME:
case RST_STREAM_FRAME:
case CONNECTION_CLOSE_FRAME:
case WINDOW_UPDATE_FRAME:
case BLOCKED_FRAME:
case PING_FRAME:
case HANDSHAKE_DONE_FRAME:
case ACK_FREQUENCY_FRAME:
PopulateFrameInfo(frame, event->add_frames());
break;
case PADDING_FRAME:
case MTU_DISCOVERY_FRAME:
case STOP_WAITING_FRAME:
case ACK_FRAME:
QUIC_BUG(quic_bug_12732_1)
<< "Frames of type are not retransmittable and are not supposed "
"to be in retransmittable_frames";
break;
case NEW_CONNECTION_ID_FRAME:
case RETIRE_CONNECTION_ID_FRAME:
case MAX_STREAMS_FRAME:
case STREAMS_BLOCKED_FRAME:
case PATH_RESPONSE_FRAME:
case PATH_CHALLENGE_FRAME:
case STOP_SENDING_FRAME:
case MESSAGE_FRAME:
case CRYPTO_FRAME:
case NEW_TOKEN_FRAME:
case RESET_STREAM_AT_FRAME:
break;
case GOAWAY_FRAME:
break;
case NUM_FRAME_TYPES:
QUIC_BUG(quic_bug_10284_2) << "Unknown frame type encountered";
break;
}
}
if (connection_->sent_packet_manager()
.GetSendAlgorithm()
->GetCongestionControlType() == kPCC) {
PopulateTransportState(event->mutable_transport_state());
}
}
void QuicTraceVisitor::PopulateFrameInfo(const QuicFrame& frame,
quic_trace::Frame* frame_record) {
switch (frame.type) {
case STREAM_FRAME: {
frame_record->set_frame_type(quic_trace::STREAM);
quic_trace::StreamFrameInfo* info =
frame_record->mutable_stream_frame_info();
info->set_stream_id(frame.stream_frame.stream_id);
info->set_fin(frame.stream_frame.fin);
info->set_offset(frame.stream_frame.offset);
info->set_length(frame.stream_frame.data_length);
break;
}
case ACK_FRAME: {
frame_record->set_frame_type(quic_trace::ACK);
quic_trace::AckInfo* info = frame_record->mutable_ack_info();
info->set_ack_delay_us(frame.ack_frame->ack_delay_time.ToMicroseconds());
for (const auto& interval : frame.ack_frame->packets) {
quic_trace::AckBlock* block = info->add_acked_packets();
block->set_first_packet(interval.min().ToUint64());
block->set_last_packet(interval.max().ToUint64() - 1);
}
break;
}
case RST_STREAM_FRAME: {
frame_record->set_frame_type(quic_trace::RESET_STREAM);
quic_trace::ResetStreamInfo* info =
frame_record->mutable_reset_stream_info();
info->set_stream_id(frame.rst_stream_frame->stream_id);
info->set_final_offset(frame.rst_stream_frame->byte_offset);
info->set_application_error_code(frame.rst_stream_frame->error_code);
break;
}
case CONNECTION_CLOSE_FRAME: {
frame_record->set_frame_type(quic_trace::CONNECTION_CLOSE);
quic_trace::CloseInfo* info = frame_record->mutable_close_info();
info->set_error_code(frame.connection_close_frame->quic_error_code);
info->set_reason_phrase(frame.connection_close_frame->error_details);
info->set_close_type(static_cast<quic_trace::CloseType>(
frame.connection_close_frame->close_type));
info->set_transport_close_frame_type(
frame.connection_close_frame->transport_close_frame_type);
break;
}
case GOAWAY_FRAME:
break;
case WINDOW_UPDATE_FRAME: {
bool is_connection = frame.window_update_frame.stream_id == 0;
frame_record->set_frame_type(is_connection ? quic_trace::MAX_DATA
: quic_trace::MAX_STREAM_DATA);
quic_trace::FlowControlInfo* info =
frame_record->mutable_flow_control_info();
info->set_max_data(frame.window_update_frame.max_data);
if (!is_connection) {
info->set_stream_id(frame.window_update_frame.stream_id);
}
break;
}
case BLOCKED_FRAME: {
bool is_connection = frame.blocked_frame.stream_id == 0;
frame_record->set_frame_type(is_connection ? quic_trace::BLOCKED
: quic_trace::STREAM_BLOCKED);
quic_trace::FlowControlInfo* info =
frame_record->mutable_flow_control_info();
if (!is_connection) {
info->set_stream_id(frame.window_update_frame.stream_id);
}
break;
}
case PING_FRAME:
case MTU_DISCOVERY_FRAME:
case HANDSHAKE_DONE_FRAME:
frame_record->set_frame_type(quic_trace::PING);
break;
case PADDING_FRAME:
frame_record->set_frame_type(quic_trace::PADDING);
break;
case STOP_WAITING_FRAME:
break;
case NEW_CONNECTION_ID_FRAME:
case RETIRE_CONNECTION_ID_FRAME:
case MAX_STREAMS_FRAME:
case STREAMS_BLOCKED_FRAME:
case PATH_RESPONSE_FRAME:
case PATH_CHALLENGE_FRAME:
case STOP_SENDING_FRAME:
case MESSAGE_FRAME:
case CRYPTO_FRAME:
case NEW_TOKEN_FRAME:
case ACK_FREQUENCY_FRAME:
case RESET_STREAM_AT_FRAME:
break;
case NUM_FRAME_TYPES:
QUIC_BUG(quic_bug_10284_3) << "Unknown frame type encountered";
break;
}
}
void QuicTraceVisitor::OnIncomingAck(
QuicPacketNumber , EncryptionLevel ack_decrypted_level,
const QuicAckFrame& ack_frame, QuicTime ack_receive_time,
QuicPacketNumber , bool ,
QuicPacketNumber ) {
quic_trace::Event* event = trace_.add_events();
event->set_time_us(ConvertTimestampToRecordedFormat(ack_receive_time));
event->set_packet_number(connection_->GetLargestReceivedPacket().ToUint64());
event->set_event_type(quic_trace::PACKET_RECEIVED);
event->set_encryption_level(EncryptionLevelToProto(ack_decrypted_level));
QuicAckFrame copy_of_ack = ack_frame;
PopulateFrameInfo(QuicFrame(©_of_ack), event->add_frames());
PopulateTransportState(event->mutable_transport_state());
}
void QuicTraceVisitor::OnPacketLoss(QuicPacketNumber lost_packet_number,
EncryptionLevel encryption_level,
TransmissionType ,
QuicTime detection_time) {
quic_trace::Event* event = trace_.add_events();
event->set_time_us(ConvertTimestampToRecordedFormat(detection_time));
event->set_event_type(quic_trace::PACKET_LOST);
event->set_packet_number(lost_packet_number.ToUint64());
PopulateTransportState(event->mutable_transport_state());
event->set_encryption_level(EncryptionLevelToProto(encryption_level));
}
void QuicTraceVisitor::OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame,
const QuicTime& receive_time) {
quic_trace::Event* event = trace_.add_events();
event->set_time_us(ConvertTimestampToRecordedFormat(receive_time));
event->set_event_type(quic_trace::PACKET_RECEIVED);
event->set_packet_number(connection_->GetLargestReceivedPacket().ToUint64());
PopulateFrameInfo(QuicFrame(frame), event->add_frames());
}
void QuicTraceVisitor::OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& version) {
uint32_t tag =
quiche::QuicheEndian::HostToNet32(CreateQuicVersionLabel(version));
std::string binary_tag(reinterpret_cast<const char*>(&tag), sizeof(tag));
trace_.set_protocol_version(binary_tag);
}
void QuicTraceVisitor::OnApplicationLimited() {
quic_trace::Event* event = trace_.add_events();
event->set_time_us(
ConvertTimestampToRecordedFormat(connection_->clock()->ApproximateNow()));
event->set_event_type(quic_trace::APPLICATION_LIMITED);
}
void QuicTraceVisitor::OnAdjustNetworkParameters(QuicBandwidth bandwidth,
QuicTime::Delta rtt,
QuicByteCount ,
QuicByteCount ) {
quic_trace::Event* event = trace_.add_events();
event->set_time_us(
ConvertTimestampToRecordedFormat(connection_->clock()->ApproximateNow()));
event->set_event_type(quic_trace::EXTERNAL_PARAMETERS);
quic_trace::ExternalNetworkParameters* parameters =
event->mutable_external_network_parameters();
if (!bandwidth.IsZero()) {
parameters->set_bandwidth_bps(bandwidth.ToBitsPerSecond());
}
if (!rtt.IsZero()) {
parameters->set_rtt_us(rtt.ToMicroseconds());
}
}
uint64_t QuicTraceVisitor::ConvertTimestampToRecordedFormat(
QuicTime timestamp) {
if (timestamp < start_time_) {
QUIC_BUG(quic_bug_10284_4)
<< "Timestamp went back in time while recording a trace";
return 0;
}
return (timestamp - start_time_).ToMicroseconds();
}
void QuicTraceVisitor::PopulateTransportState(
quic_trace::TransportState* state) {
const RttStats* rtt_stats = connection_->sent_packet_manager().GetRttStats();
state->set_min_rtt_us(rtt_stats->min_rtt().ToMicroseconds());
state->set_smoothed_rtt_us(rtt_stats->smoothed_rtt().ToMicroseconds());
state->set_last_rtt_us(rtt_stats->latest_rtt().ToMicroseconds());
state->set_cwnd_bytes(
connection_->sent_packet_manager().GetCongestionWindowInBytes());
QuicByteCount in_flight =
connection_->sent_packet_manager().GetBytesInFlight();
state->set_in_flight_bytes(in_flight);
state->set_pacing_rate_bps(connection_->sent_packet_manager()
.GetSendAlgorithm()
->PacingRate(in_flight)
.ToBitsPerSecond());
if (connection_->sent_packet_manager()
.GetSendAlgorithm()
->GetCongestionControlType() == kPCC) {
state->set_congestion_control_state(
connection_->sent_packet_manager().GetSendAlgorithm()->GetDebugState());
}
}
} | #include "quiche/quic/core/quic_trace_visitor.h"
#include <string>
#include <vector>
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simulator/quic_endpoint.h"
#include "quiche/quic/test_tools/simulator/simulator.h"
#include "quiche/quic/test_tools/simulator/switch.h"
namespace quic::test {
namespace {
const QuicByteCount kTransferSize = 1000 * kMaxOutgoingPacketSize;
const QuicByteCount kTestStreamNumber = 3;
const QuicTime::Delta kDelay = QuicTime::Delta::FromMilliseconds(20);
class QuicTraceVisitorTest : public QuicTest {
public:
QuicTraceVisitorTest() {
QuicConnectionId connection_id = test::TestConnectionId();
simulator::Simulator simulator;
simulator::QuicEndpoint client(&simulator, "Client", "Server",
Perspective::IS_CLIENT, connection_id);
simulator::QuicEndpoint server(&simulator, "Server", "Client",
Perspective::IS_SERVER, connection_id);
const QuicBandwidth kBandwidth = QuicBandwidth::FromKBitsPerSecond(1000);
const QuicByteCount kBdp = kBandwidth * (2 * kDelay);
simulator::Switch network_switch(&simulator, "Switch", 8, 0.5 * kBdp);
simulator::SymmetricLink client_link(&client, network_switch.port(1),
2 * kBandwidth, kDelay);
simulator::SymmetricLink server_link(&server, network_switch.port(2),
kBandwidth, kDelay);
QuicTraceVisitor visitor(client.connection());
client.connection()->set_debug_visitor(&visitor);
const QuicTime::Delta kDeadline =
3 * kBandwidth.TransferTime(kTransferSize);
client.AddBytesToTransfer(kTransferSize);
bool simulator_result = simulator.RunUntilOrTimeout(
[&]() { return server.bytes_received() >= kTransferSize; }, kDeadline);
QUICHE_CHECK(simulator_result);
trace_.Swap(visitor.trace());
QUICHE_CHECK_NE(0u, client.connection()->GetStats().packets_retransmitted);
packets_sent_ = client.connection()->GetStats().packets_sent;
}
std::vector<quic_trace::Event> AllEventsWithType(
quic_trace::EventType event_type) {
std::vector<quic_trace::Event> result;
for (const auto& event : trace_.events()) {
if (event.event_type() == event_type) {
result.push_back(event);
}
}
return result;
}
protected:
quic_trace::Trace trace_;
QuicPacketCount packets_sent_;
};
TEST_F(QuicTraceVisitorTest, ConnectionId) {
char expected_cid[] = {0, 0, 0, 0, 0, 0, 0, 42};
EXPECT_EQ(std::string(expected_cid, sizeof(expected_cid)),
trace_.destination_connection_id());
}
TEST_F(QuicTraceVisitorTest, Version) {
std::string version = trace_.protocol_version();
ASSERT_EQ(4u, version.size());
EXPECT_TRUE(version[0] != 0 || version[1] != 0 || version[2] != 0 ||
version[3] != 0);
}
TEST_F(QuicTraceVisitorTest, SentPacket) {
auto sent_packets = AllEventsWithType(quic_trace::PACKET_SENT);
EXPECT_EQ(packets_sent_, sent_packets.size());
ASSERT_GT(sent_packets.size(), 0u);
EXPECT_EQ(sent_packets[0].packet_size(), kDefaultMaxPacketSize);
EXPECT_EQ(sent_packets[0].packet_number(), 1u);
}
TEST_F(QuicTraceVisitorTest, SentStream) {
auto sent_packets = AllEventsWithType(quic_trace::PACKET_SENT);
QuicIntervalSet<QuicStreamOffset> offsets;
for (const quic_trace::Event& packet : sent_packets) {
for (const quic_trace::Frame& frame : packet.frames()) {
if (frame.frame_type() != quic_trace::STREAM) {
continue;
}
const quic_trace::StreamFrameInfo& info = frame.stream_frame_info();
if (info.stream_id() != kTestStreamNumber) {
continue;
}
ASSERT_GT(info.length(), 0u);
offsets.Add(info.offset(), info.offset() + info.length());
}
}
ASSERT_EQ(1u, offsets.Size());
EXPECT_EQ(0u, offsets.begin()->min());
EXPECT_EQ(kTransferSize, offsets.rbegin()->max());
}
TEST_F(QuicTraceVisitorTest, AckPackets) {
QuicIntervalSet<QuicPacketNumber> packets;
for (const quic_trace::Event& packet : trace_.events()) {
if (packet.event_type() == quic_trace::PACKET_RECEIVED) {
for (const quic_trace::Frame& frame : packet.frames()) {
if (frame.frame_type() != quic_trace::ACK) {
continue;
}
const quic_trace::AckInfo& info = frame.ack_info();
for (const auto& block : info.acked_packets()) {
packets.Add(QuicPacketNumber(block.first_packet()),
QuicPacketNumber(block.last_packet()) + 1);
}
}
}
if (packet.event_type() == quic_trace::PACKET_LOST) {
packets.Add(QuicPacketNumber(packet.packet_number()),
QuicPacketNumber(packet.packet_number()) + 1);
}
}
ASSERT_EQ(1u, packets.Size());
EXPECT_EQ(QuicPacketNumber(1u), packets.begin()->min());
EXPECT_GT(packets.rbegin()->max(), QuicPacketNumber(packets_sent_ - 20));
}
TEST_F(QuicTraceVisitorTest, TransportState) {
auto acks = AllEventsWithType(quic_trace::PACKET_RECEIVED);
ASSERT_EQ(1, acks[0].frames_size());
ASSERT_EQ(quic_trace::ACK, acks[0].frames(0).frame_type());
EXPECT_LE((4 * kDelay).ToMicroseconds() * 1.,
acks.rbegin()->transport_state().min_rtt_us());
EXPECT_GE((4 * kDelay).ToMicroseconds() * 1.25,
acks.rbegin()->transport_state().min_rtt_us());
}
TEST_F(QuicTraceVisitorTest, EncryptionLevels) {
for (const auto& event : trace_.events()) {
switch (event.event_type()) {
case quic_trace::PACKET_SENT:
case quic_trace::PACKET_RECEIVED:
case quic_trace::PACKET_LOST:
ASSERT_TRUE(event.has_encryption_level());
ASSERT_NE(event.encryption_level(), quic_trace::ENCRYPTION_UNKNOWN);
break;
default:
break;
}
}
}
}
} |
227 | cpp | google/quiche | quic_crypto_client_handshaker | quiche/quic/core/quic_crypto_client_handshaker.cc | quiche/quic/core/quic_crypto_client_handshaker_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CRYPTO_CLIENT_HANDSHAKER_H_
#define QUICHE_QUIC_CORE_QUIC_CRYPTO_CLIENT_HANDSHAKER_H_
#include <string>
#include "quiche/quic/core/crypto/proof_verifier.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
class QUICHE_EXPORT QuicCryptoClientHandshaker
: public QuicCryptoClientStream::HandshakerInterface,
public QuicCryptoHandshaker {
public:
QuicCryptoClientHandshaker(
const QuicServerId& server_id, QuicCryptoClientStream* stream,
QuicSession* session, std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
QuicCryptoClientStream::ProofHandler* proof_handler);
QuicCryptoClientHandshaker(const QuicCryptoClientHandshaker&) = delete;
QuicCryptoClientHandshaker& operator=(const QuicCryptoClientHandshaker&) =
delete;
~QuicCryptoClientHandshaker() override;
bool CryptoConnect() override;
int num_sent_client_hellos() const override;
bool ResumptionAttempted() const override;
bool IsResumption() const override;
bool EarlyDataAccepted() const override;
ssl_early_data_reason_t EarlyDataReason() const override;
bool ReceivedInchoateReject() const override;
int num_scup_messages_received() const override;
std::string chlo_hash() const override;
bool encryption_established() const override;
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override;
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override;
bool one_rtt_keys_available() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
HandshakeState GetHandshakeState() const override;
size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
void OnOneRttPacketAcknowledged() override {}
void OnHandshakePacketSent() override {}
void OnConnectionClosed(QuicErrorCode ,
ConnectionCloseSource ) override;
void OnHandshakeDoneReceived() override;
void OnNewTokenReceived(absl::string_view token) override;
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> ) override {
QUICHE_NOTREACHED();
}
bool ExportKeyingMaterial(absl::string_view ,
absl::string_view ,
size_t ,
std::string* ) override {
QUICHE_NOTREACHED();
return false;
}
void OnHandshakeMessage(const CryptoHandshakeMessage& message) override;
protected:
QuicSession* session() const { return session_; }
void DoSendCHLO(QuicCryptoClientConfig::CachedState* cached);
private:
class QUICHE_EXPORT ProofVerifierCallbackImpl : public ProofVerifierCallback {
public:
explicit ProofVerifierCallbackImpl(QuicCryptoClientHandshaker* parent);
~ProofVerifierCallbackImpl() override;
void Run(bool ok, const std::string& error_details,
std::unique_ptr<ProofVerifyDetails>* details) override;
void Cancel();
private:
QuicCryptoClientHandshaker* parent_;
};
enum State {
STATE_IDLE,
STATE_INITIALIZE,
STATE_SEND_CHLO,
STATE_RECV_REJ,
STATE_VERIFY_PROOF,
STATE_VERIFY_PROOF_COMPLETE,
STATE_RECV_SHLO,
STATE_INITIALIZE_SCUP,
STATE_NONE,
STATE_CONNECTION_CLOSED,
};
void HandleServerConfigUpdateMessage(
const CryptoHandshakeMessage& server_config_update);
void DoHandshakeLoop(const CryptoHandshakeMessage* in);
void DoInitialize(QuicCryptoClientConfig::CachedState* cached);
void DoReceiveREJ(const CryptoHandshakeMessage* in,
QuicCryptoClientConfig::CachedState* cached);
QuicAsyncStatus DoVerifyProof(QuicCryptoClientConfig::CachedState* cached);
void DoVerifyProofComplete(QuicCryptoClientConfig::CachedState* cached);
void DoReceiveSHLO(const CryptoHandshakeMessage* in,
QuicCryptoClientConfig::CachedState* cached);
void DoInitializeServerConfigUpdate(
QuicCryptoClientConfig::CachedState* cached);
void SetCachedProofValid(QuicCryptoClientConfig::CachedState* cached);
QuicCryptoClientStream* stream_;
QuicSession* session_;
HandshakerDelegateInterface* delegate_;
State next_state_;
int num_client_hellos_;
ssl_early_data_reason_t early_data_reason_ = ssl_early_data_unknown;
QuicCryptoClientConfig* const crypto_config_;
std::string chlo_hash_;
const QuicServerId server_id_;
uint64_t generation_counter_;
std::unique_ptr<ProofVerifyContext> verify_context_;
ProofVerifierCallbackImpl* proof_verify_callback_;
QuicCryptoClientStream::ProofHandler* proof_handler_;
bool verify_ok_;
std::string verify_error_details_;
std::unique_ptr<ProofVerifyDetails> verify_details_;
QuicTime proof_verify_start_time_;
int num_scup_messages_received_;
bool encryption_established_;
bool one_rtt_keys_available_;
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters>
crypto_negotiated_params_;
};
}
#endif
#include "quiche/quic/core/quic_crypto_client_handshaker.h"
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/crypto_utils.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_client_stats.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
QuicCryptoClientHandshaker::ProofVerifierCallbackImpl::
ProofVerifierCallbackImpl(QuicCryptoClientHandshaker* parent)
: parent_(parent) {}
QuicCryptoClientHandshaker::ProofVerifierCallbackImpl::
~ProofVerifierCallbackImpl() {}
void QuicCryptoClientHandshaker::ProofVerifierCallbackImpl::Run(
bool ok, const std::string& error_details,
std::unique_ptr<ProofVerifyDetails>* details) {
if (parent_ == nullptr) {
return;
}
parent_->verify_ok_ = ok;
parent_->verify_error_details_ = error_details;
parent_->verify_details_ = std::move(*details);
parent_->proof_verify_callback_ = nullptr;
parent_->DoHandshakeLoop(nullptr);
}
void QuicCryptoClientHandshaker::ProofVerifierCallbackImpl::Cancel() {
parent_ = nullptr;
}
QuicCryptoClientHandshaker::QuicCryptoClientHandshaker(
const QuicServerId& server_id, QuicCryptoClientStream* stream,
QuicSession* session, std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
QuicCryptoClientStream::ProofHandler* proof_handler)
: QuicCryptoHandshaker(stream, session),
stream_(stream),
session_(session),
delegate_(session),
next_state_(STATE_IDLE),
num_client_hellos_(0),
crypto_config_(crypto_config),
server_id_(server_id),
generation_counter_(0),
verify_context_(std::move(verify_context)),
proof_verify_callback_(nullptr),
proof_handler_(proof_handler),
verify_ok_(false),
proof_verify_start_time_(QuicTime::Zero()),
num_scup_messages_received_(0),
encryption_established_(false),
one_rtt_keys_available_(false),
crypto_negotiated_params_(new QuicCryptoNegotiatedParameters) {}
QuicCryptoClientHandshaker::~QuicCryptoClientHandshaker() {
if (proof_verify_callback_) {
proof_verify_callback_->Cancel();
}
}
void QuicCryptoClientHandshaker::OnHandshakeMessage(
const CryptoHandshakeMessage& message) {
QuicCryptoHandshaker::OnHandshakeMessage(message);
if (message.tag() == kSCUP) {
if (!one_rtt_keys_available()) {
stream_->OnUnrecoverableError(
QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE,
"Early SCUP disallowed");
return;
}
HandleServerConfigUpdateMessage(message);
num_scup_messages_received_++;
return;
}
if (one_rtt_keys_available()) {
stream_->OnUnrecoverableError(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE,
"Unexpected handshake message");
return;
}
DoHandshakeLoop(&message);
}
bool QuicCryptoClientHandshaker::CryptoConnect() {
next_state_ = STATE_INITIALIZE;
DoHandshakeLoop(nullptr);
return session()->connection()->connected();
}
int QuicCryptoClientHandshaker::num_sent_client_hellos() const {
return num_client_hellos_;
}
bool QuicCryptoClientHandshaker::ResumptionAttempted() const {
QUICHE_DCHECK(false);
return false;
}
bool QuicCryptoClientHandshaker::IsResumption() const {
QUIC_BUG_IF(quic_bug_12522_1, !one_rtt_keys_available_);
return false;
}
bool QuicCryptoClientHandshaker::EarlyDataAccepted() const {
QUIC_BUG_IF(quic_bug_12522_2, !one_rtt_keys_available_);
return num_client_hellos_ == 1;
}
ssl_early_data_reason_t QuicCryptoClientHandshaker::EarlyDataReason() const {
return early_data_reason_;
}
bool QuicCryptoClientHandshaker::ReceivedInchoateReject() const {
QUIC_BUG_IF(quic_bug_12522_3, !one_rtt_keys_available_);
return num_client_hellos_ >= 3;
}
int QuicCryptoClientHandshaker::num_scup_messages_received() const {
return num_scup_messages_received_;
}
std::string QuicCryptoClientHandshaker::chlo_hash() const { return chlo_hash_; }
bool QuicCryptoClientHandshaker::encryption_established() const {
return encryption_established_;
}
bool QuicCryptoClientHandshaker::IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel ) const {
return true;
}
EncryptionLevel
QuicCryptoClientHandshaker::GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const {
if (space == INITIAL_DATA) {
return ENCRYPTION_INITIAL;
}
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
bool QuicCryptoClientHandshaker::one_rtt_keys_available() const {
return one_rtt_keys_available_;
}
const QuicCryptoNegotiatedParameters&
QuicCryptoClientHandshaker::crypto_negotiated_params() const {
return *crypto_negotiated_params_;
}
CryptoMessageParser* QuicCryptoClientHandshaker::crypto_message_parser() {
return QuicCryptoHandshaker::crypto_message_parser();
}
HandshakeState QuicCryptoClientHandshaker::GetHandshakeState() const {
return one_rtt_keys_available() ? HANDSHAKE_COMPLETE : HANDSHAKE_START;
}
void QuicCryptoClientHandshaker::OnHandshakeDoneReceived() {
QUICHE_DCHECK(false);
}
void QuicCryptoClientHandshaker::OnNewTokenReceived(
absl::string_view ) {
QUICHE_DCHECK(false);
}
size_t QuicCryptoClientHandshaker::BufferSizeLimitForLevel(
EncryptionLevel level) const {
return QuicCryptoHandshaker::BufferSizeLimitForLevel(level);
}
std::unique_ptr<QuicDecrypter>
QuicCryptoClientHandshaker::AdvanceKeysAndCreateCurrentOneRttDecrypter() {
QUICHE_DCHECK(false);
return nullptr;
}
std::unique_ptr<QuicEncrypter>
QuicCryptoClientHandshaker::CreateCurrentOneRttEncrypter() {
QUICHE_DCHECK(false);
return nullptr;
}
void QuicCryptoClientHandshaker::OnConnectionClosed(
QuicErrorCode , ConnectionCloseSource ) {
next_state_ = STATE_CONNECTION_CLOSED;
}
void QuicCryptoClientHandshaker::HandleServerConfigUpdateMessage(
const CryptoHandshakeMessage& server_config_update) {
QUICHE_DCHECK(server_config_update.tag() == kSCUP);
std::string error_details;
QuicCryptoClientConfig::CachedState* cached =
crypto_config_->LookupOrCreate(server_id_);
QuicErrorCode error = crypto_config_->ProcessServerConfigUpdate(
server_config_update, session()->connection()->clock()->WallNow(),
session()->transport_version(), chlo_hash_, cached,
crypto_negotiated_params_, &error_details);
if (error != QUIC_NO_ERROR) {
stream_->OnUnrecoverableError(
error, "Server config update invalid: " + error_details);
return;
}
QUICHE_DCHECK(one_rtt_keys_available());
if (proof_verify_callback_) {
proof_verify_callback_->Cancel();
}
next_state_ = STATE_INITIALIZE_SCUP;
DoHandshakeLoop(nullptr);
}
void QuicCryptoClientHandshaker::DoHandshakeLoop(
const CryptoHandshakeMessage* in) {
QuicCryptoClientConfig::CachedState* cached =
crypto_config_->LookupOrCreate(server_id_);
QuicAsyncStatus rv = QUIC_SUCCESS;
do {
QUICHE_CHECK_NE(STATE_NONE, next_state_);
const State state = next_state_;
next_state_ = STATE_IDLE;
rv = QUIC_SUCCESS;
switch (state) {
case STATE_INITIALIZE:
DoInitialize(cached);
break;
case STATE_SEND_CHLO:
DoSendCHLO(cached);
return;
case STATE_RECV_REJ:
DoReceiveREJ(in, cached);
break;
case STATE_VERIFY_PROOF:
rv = DoVerifyProof(cached);
break;
case STATE_VERIFY_PROOF_COMPLETE:
DoVerifyProofComplete(cached);
break;
case STATE_RECV_SHLO:
DoReceiveSHLO(in, cached);
break;
case STATE_IDLE:
stream_->OnUnrecoverableError(QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
"Handshake in idle state");
return;
case STATE_INITIALIZE_SCUP:
DoInitializeServerConfigUpdate(cached);
break;
case STATE_NONE:
QUICHE_NOTREACHED();
return;
case STATE_CONNECTION_CLOSED:
rv = QUIC_FAILURE;
return;
}
} while (rv != QUIC_PENDING && next_state_ != STATE_NONE);
}
void QuicCryptoClientHandshaker::DoInitialize(
QuicCryptoClientConfig::CachedState* cached) {
if (!cached->IsEmpty() && !cached->signature().empty()) {
QUICHE_DCHECK(crypto_config_->proof_verifier());
proof_verify_start_time_ = session()->connection()->clock()->Now();
chlo_hash_ = cached->chlo_hash();
next_state_ = STATE_VERIFY_PROOF;
} else {
next_state_ = STATE_SEND_CHLO;
}
}
void QuicCryptoClientHandshaker::DoSendCHLO(
QuicCryptoClientConfig::CachedState* cached) {
session()->connection()->SetDefaultEncryptionLevel(ENCRYPTION_INITIAL);
encryption_established_ = false;
if (num_client_hellos_ >= QuicCryptoClientStream::kMaxClientHellos) {
stream_->OnUnrecoverableError(
QUIC_CRYPTO_TOO_MANY_REJECTS,
absl::StrCat("More than ", QuicCryptoClientStream::kMaxClientHellos,
" rejects"));
return;
}
num_client_hellos_++;
CryptoHandshakeMessage out;
QUICHE_DCHECK(session() != nullptr);
QUICHE_DCHECK(session()->config() != nullptr);
session()->config()->ToHandshakeMessage(&out, session()->transport_version());
bool fill_inchoate_client_hello = false;
if (!cached->IsComplete(session()->connection()->clock()->WallNow())) {
early_data_reason_ = ssl_early_data_no_session_offered;
fill_inchoate_client_hello = true;
} else if (session()->config()->HasClientRequestedIndependentOption(
kQNZ2, session()->perspective()) &&
num_client_hellos_ == 1) {
early_data_reason_ = ssl_early_data_disabled;
fill_inchoate_client_hello = true;
}
if (fill_inchoate_client_hello) {
crypto_config_->FillInchoateClientHello(
server_id_, session()->supported_versions().front(), cached,
session()->connection()->random_generator(),
true, crypto_negotiated_params_, &out);
const QuicByteCount kFramingOverhead = 50;
const QuicByteCount max_packet_size =
session()->connection()->max_packet_length();
if (max_packet_size <= kFramingOverhead) {
QUIC_DLOG(DFATAL) << "max_packet_length (" << max_packet_size
<< ") has no room for framing overhead.";
stream_->OnUnrecoverableError(QUIC_INTERNAL_ERROR,
"max_packet_size too smalll");
return;
}
if (kClientHelloMinimumSize > max_packet_size - kFramingOverhead) {
QUIC_DLOG(DFATAL) << "Client hello won't fit in a single packet.";
stream_->OnUnrecoverableError(QUIC_INTERNAL_ERROR, "CHLO too large");
return;
}
next_state_ = STATE_RECV_REJ;
chlo_hash_ = CryptoUtils::HashHandshakeMessage(out, Perspective::IS_CLIENT);
session()->connection()->set_fully_pad_crypto_handshake_packets(
crypto_config_->pad_inchoate_hello());
SendHandshakeMessage(out, ENCRYPTION_INITIAL);
return;
}
std::string error_details;
QuicErrorCode error = crypto_config_->FillClientHello(
server_id_, session()->connection()->connection_id(),
session()->supported_versions().front(),
session()->connection()->version(), cached,
session()->connection()->clock()->WallNow(),
session()->connection()->random_generator(), crypto_negotiated_params_,
&out, &error_details);
if (error != QUIC_NO_ERROR) {
cached->InvalidateServerConfig();
stream_->OnUnrecoverableError(error, error_details);
return;
}
chlo_hash_ = CryptoUtils::HashHandshakeMessage(out, Perspective::IS_CLIENT);
if (cached->proof_verify_details()) {
proof_handler_->OnProofVerifyDetailsAvailable(
*cached->proof_verify_details());
}
next_state_ = STATE_RECV_SHLO;
session()->connection()->set_fully_pad_crypto_handshake_packets(
crypto_config_->pad_full_hello());
SendHandshakeMessage(out, ENCRYPTION_INITIAL);
delegate_->OnNewEncryptionKeyAvailable(
ENCRYPTION_ZERO_RTT,
std::move(crypto_negotiated_params_->initial_crypters.encrypter));
delegate_->OnNewDecryptionKeyAvailable(
ENCRYPTION_ZERO_RTT,
std::move(crypto_negotiated_params_->initial_crypters.decrypter),
true,
true);
encryption_established_ = true;
delegate_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
if (early_data_reason_ == ssl_early_data_unknown && num_client_hellos_ > 1) {
early_data_reason_ = ssl_early_data_peer_declined;
}
}
void QuicCryptoClientHandshaker::DoReceiveREJ(
const CryptoHandshakeMessage* in,
QuicCryptoClientConfig::CachedState* cached) {
if (in->tag() != kREJ) {
next_state_ = STATE_NONE;
stream_->OnUnrecoverableError(QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
"Expected REJ");
return;
}
QuicTagVector reject_reasons;
static_assert(sizeof(QuicTag) == sizeof(uint32_t), "header out of sync");
if (in->GetTaglist(kRREJ, &reject_reasons) == QUIC_NO_ERROR) {
uint32_t packed_error = 0;
for (size_t i = 0; i < reject_reasons.size(); ++i) {
if (reject_reasons[i] == HANDSHAKE_OK || reject_reasons[i] >= 32) {
continue;
}
HandshakeFailureReason reason =
static_cast<HandshakeFailureReason>(reject_reasons[i]);
packed_error |= 1 << (reason - 1);
}
QUIC_DVLOG(1) << "Reasons for rejection: " << packed_error;
}
delegate_->NeuterUnencryptedData();
std::string error_details;
QuicErrorCode error = crypto_config_->ProcessRejection(
*in, session()->connection()->clock()->WallNow(),
session()->transport_version(), chlo_hash_, cached,
crypto_negotiated_params_, &error_details);
if (error != QUIC_NO_ERROR) {
next_state_ = STATE_NONE;
stream_->OnUnrecoverableError(error, error_details);
return;
}
if (!cached->proof_valid()) {
if (!cached->signature().empty()) {
next_state_ = STATE_VERIFY_PROOF;
return;
}
}
next_state_ = STATE_SEND_CHLO;
}
QuicAsyncStatus QuicCryptoClientHandshaker::DoVerifyProof(
QuicCryptoClientConfig::CachedState* cached) {
ProofVerifier* verifier = crypto_config_->proof_verifier();
QUICHE_DCHECK(verifier);
next_state_ = STATE_VERIFY_PROOF_COMPLETE;
generation_counter_ = cached->generation_counter();
ProofVerifierCallbackImpl* proof_verify_callback =
new ProofVerifierCallbackImpl(this);
verify_ok_ = false;
QuicAsyncStatus status = verifier->VerifyProof(
server_id_.host(), server_id_.port(), cached->server_config(),
session()->transport_version(), chlo_hash_, cached->certs(),
cached->cert_sct(), cached->signature(), verify_context_.get(),
&verify_error_details_, &verify_details_,
std::unique_ptr<ProofVerifierCallback>(proof_verify_callback));
switch (status) {
case QUIC_PENDING:
proof_verify_callback_ = proof_verify_callback;
QUIC_DVLOG(1) << "Doing VerifyProof";
break;
case QUIC_FAILURE:
break;
case QUIC_SUCCESS:
verify_ok_ = true;
break;
}
return status;
}
void QuicCryptoClientHandshaker::DoVerifyProofComplete(
QuicCryptoClientConfig::CachedState* cached) {
if (proof_verify_start_time_.IsInitialized()) {
QUIC_CLIENT_HISTOGRAM_TIMES(
"QuicSession.VerifyProofTime.CachedServerConfig",
(session()->connection()->clock()->Now() - proof_verify_start_time_),
QuicTime::Delta::FromMilliseconds(1), QuicTime::Delta::FromSeconds(10),
50, "");
}
if (!verify_ok_) {
if (verify_details_) {
proof_handler_->OnProofVerifyDetailsAvailable(*verify_details_);
}
if (num_client_hellos_ == 0) {
cached->Clear();
next_state_ = STATE_INITIALIZE;
return;
}
next_state_ = STATE_NONE;
QUIC_CLIENT_HISTOGRAM_BOOL("QuicVerifyProofFailed.HandshakeConfirmed",
one_rtt_keys_available(), "");
stream_->OnUnrecoverableError(QUIC_PROOF_INVALID,
"Proof invalid: " + verify_error_details_);
return;
}
if (generation_counter_ != cached->generation_counter()) {
next_state_ = STATE_VERIFY_PROOF;
} else {
SetCachedProofValid(cached);
cached->SetProofVerifyDetails(verify_details_.release());
if (!one_rtt_keys_available()) {
next_state_ = STATE_SEND_CHLO;
} else {
next_state_ = STATE_NONE;
}
}
}
void QuicCryptoClientHandshaker::DoReceiveSHLO(
const CryptoHandshakeMessage* in,
QuicCryptoClientConfig::CachedState* cached) {
next_state_ = STATE_NONE;
if (in->tag() == kREJ) {
if (session()->connection()->last_decrypted_level() != ENCRYPTION_INITIAL) {
stream_->OnUnrecoverableError(QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT,
"encrypted REJ message");
return;
}
next_state_ = STATE_RECV_REJ;
return;
}
if (in->tag() != kSHLO) {
stream_->OnUnrecoverableError(
QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
absl::StrCat("Expected SHLO or REJ. Received: ",
QuicTagToString(in->tag())));
return;
}
if (session()->connection()->last_decrypted_level() == ENCRYPTION_INITIAL) {
stream_->OnUnrecoverableError(QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT,
"unencrypted SHLO message");
return;
}
if (num_client_hellos_ == 1) {
early_data_reason_ = ssl_early_data_accepted;
}
std::string error_details;
QuicErrorCode error = crypto_config_->ProcessServerHello(
*in, session()->connection()->connection_id(),
session()->connection()->version(),
session()->connection()->server_supported_versions(), cached,
crypto_negotiated_params_, &error_details);
if (error != QUIC_NO_ERROR) {
stream_->OnUnrecoverableError(error,
"Server hello invalid: " + error_details);
return;
}
error = session()->config()->ProcessPeerHello(*in, SERVER, &error_details);
if (error != QUIC_NO_ERROR) {
stream_->OnUnrecoverableError(error,
"Server hello invalid: " + error_details);
return;
}
session()->OnConfigNegotiated();
CrypterPair* crypters = &crypto_negotiated_params_->forward_secure_crypters;
delegate_->OnNewEncryptionKeyAvailable(ENCRYPTION_FORWARD_SECURE,
std::move(crypters->encrypter));
delegate_->OnNewDecryptionKeyAvailable(ENCRYPTION_FORWARD_SECURE,
std::move(crypters->decrypter),
true,
false);
one_rtt_keys_available_ = true;
delegate_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
delegate_->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
delegate_->NeuterHandshakeData();
}
void QuicCryptoClientHandshaker::DoInitializeServerConfigUpdate(
QuicCryptoClientConfig::CachedState* cached) {
bool update_ignored = false;
if (!cached->IsEmpty() && !cached->signature().empty()) {
QUICHE_DCHECK(crypto_config_->proof_verifier());
next_state_ = STATE_VERIFY_PROOF;
} else {
update_ignored = true;
next_state_ = STATE_NONE;
}
QUIC_CLIENT_HISTOGRAM_COUNTS("QuicNumServerConfig.UpdateMessagesIgnored",
update_ignored, 1, 1000000, 50, "");
}
void QuicCryptoClientHandshaker::SetCachedProofValid(
QuicCryptoClientConfig::CachedState* cached) {
cached->SetProofValid();
proof_handler_->OnProofValid(*cached);
}
} | #include "quiche/quic/core/quic_crypto_client_handshaker.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/proto/crypto_server_config_proto.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic::test {
namespace {
class TestProofHandler : public QuicCryptoClientStream::ProofHandler {
public:
~TestProofHandler() override {}
void OnProofValid(
const QuicCryptoClientConfig::CachedState& ) override {}
void OnProofVerifyDetailsAvailable(
const ProofVerifyDetails& ) override {}
};
class InsecureProofVerifier : public ProofVerifier {
public:
InsecureProofVerifier() {}
~InsecureProofVerifier() override {}
QuicAsyncStatus VerifyProof(
const std::string& , const uint16_t ,
const std::string& ,
QuicTransportVersion ,
absl::string_view ,
const std::vector<std::string>& ,
const std::string& , const std::string& ,
const ProofVerifyContext* , std::string* ,
std::unique_ptr<ProofVerifyDetails>* ,
std::unique_ptr<ProofVerifierCallback> ) override {
return QUIC_SUCCESS;
}
QuicAsyncStatus VerifyCertChain(
const std::string& , const uint16_t ,
const std::vector<std::string>& ,
const std::string& , const std::string& ,
const ProofVerifyContext* , std::string* ,
std::unique_ptr<ProofVerifyDetails>* , uint8_t* ,
std::unique_ptr<ProofVerifierCallback> ) override {
return QUIC_SUCCESS;
}
std::unique_ptr<ProofVerifyContext> CreateDefaultContext() override {
return nullptr;
}
};
class DummyProofSource : public ProofSource {
public:
DummyProofSource() {}
~DummyProofSource() override {}
void GetProof(const QuicSocketAddress& server_address,
const QuicSocketAddress& client_address,
const std::string& hostname,
const std::string& ,
QuicTransportVersion ,
absl::string_view ,
std::unique_ptr<Callback> callback) override {
bool cert_matched_sni;
quiche::QuicheReferenceCountedPointer<ProofSource::Chain> chain =
GetCertChain(server_address, client_address, hostname,
&cert_matched_sni);
QuicCryptoProof proof;
proof.signature = "Dummy signature";
proof.leaf_cert_scts = "Dummy timestamp";
proof.cert_matched_sni = cert_matched_sni;
callback->Run(true, chain, proof, nullptr);
}
quiche::QuicheReferenceCountedPointer<Chain> GetCertChain(
const QuicSocketAddress& ,
const QuicSocketAddress& ,
const std::string& , bool* ) override {
std::vector<std::string> certs;
certs.push_back("Dummy cert");
return quiche::QuicheReferenceCountedPointer<ProofSource::Chain>(
new ProofSource::Chain(certs));
}
void ComputeTlsSignature(
const QuicSocketAddress& ,
const QuicSocketAddress& ,
const std::string& , uint16_t ,
absl::string_view ,
std::unique_ptr<SignatureCallback> callback) override {
callback->Run(true, "Dummy signature", nullptr);
}
absl::InlinedVector<uint16_t, 8> SupportedTlsSignatureAlgorithms()
const override {
return {};
}
TicketCrypter* GetTicketCrypter() override { return nullptr; }
};
class Handshaker : public QuicCryptoClientHandshaker {
public:
Handshaker(const QuicServerId& server_id, QuicCryptoClientStream* stream,
QuicSession* session,
std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
QuicCryptoClientStream::ProofHandler* proof_handler)
: QuicCryptoClientHandshaker(server_id, stream, session,
std::move(verify_context), crypto_config,
proof_handler) {}
void DoSendCHLOTest(QuicCryptoClientConfig::CachedState* cached) {
QuicCryptoClientHandshaker::DoSendCHLO(cached);
}
};
class QuicCryptoClientHandshakerTest
: public QuicTestWithParam<ParsedQuicVersion> {
protected:
QuicCryptoClientHandshakerTest()
: version_(GetParam()),
proof_handler_(),
helper_(),
alarm_factory_(),
server_id_("host", 123),
connection_(new test::MockQuicConnection(
&helper_, &alarm_factory_, Perspective::IS_CLIENT, {version_})),
session_(connection_, false),
crypto_client_config_(std::make_unique<InsecureProofVerifier>()),
client_stream_(
new QuicCryptoClientStream(server_id_, &session_, nullptr,
&crypto_client_config_, &proof_handler_,
false)),
handshaker_(server_id_, client_stream_, &session_, nullptr,
&crypto_client_config_, &proof_handler_),
state_() {
session_.SetCryptoStream(client_stream_);
session_.Initialize();
}
void InitializeServerParametersToEnableFullHello() {
QuicCryptoServerConfig::ConfigOptions options;
QuicServerConfigProtobuf config = QuicCryptoServerConfig::GenerateConfig(
helper_.GetRandomGenerator(), helper_.GetClock(), options);
state_.Initialize(
config.config(), "sourcetoken", std::vector<std::string>{"Dummy cert"},
"", "chlo_hash", "signature", helper_.GetClock()->WallNow(),
helper_.GetClock()->WallNow().Add(QuicTime::Delta::FromSeconds(30)));
state_.SetProofValid();
}
ParsedQuicVersion version_;
TestProofHandler proof_handler_;
test::MockQuicConnectionHelper helper_;
test::MockAlarmFactory alarm_factory_;
QuicServerId server_id_;
test::MockQuicConnection* connection_;
test::MockQuicSession session_;
QuicCryptoClientConfig crypto_client_config_;
QuicCryptoClientStream* client_stream_;
Handshaker handshaker_;
QuicCryptoClientConfig::CachedState state_;
};
INSTANTIATE_TEST_SUITE_P(
QuicCryptoClientHandshakerTests, QuicCryptoClientHandshakerTest,
::testing::ValuesIn(AllSupportedVersionsWithQuicCrypto()),
::testing::PrintToStringParamName());
TEST_P(QuicCryptoClientHandshakerTest, TestSendFullPaddingInInchoateHello) {
handshaker_.DoSendCHLOTest(&state_);
EXPECT_TRUE(connection_->fully_pad_during_crypto_handshake());
}
TEST_P(QuicCryptoClientHandshakerTest, TestDisabledPaddingInInchoateHello) {
crypto_client_config_.set_pad_inchoate_hello(false);
handshaker_.DoSendCHLOTest(&state_);
EXPECT_FALSE(connection_->fully_pad_during_crypto_handshake());
}
TEST_P(QuicCryptoClientHandshakerTest,
TestPaddingInFullHelloEvenIfInchoateDisabled) {
crypto_client_config_.set_pad_inchoate_hello(false);
InitializeServerParametersToEnableFullHello();
handshaker_.DoSendCHLOTest(&state_);
EXPECT_TRUE(connection_->fully_pad_during_crypto_handshake());
}
TEST_P(QuicCryptoClientHandshakerTest, TestNoPaddingInFullHelloWhenDisabled) {
crypto_client_config_.set_pad_full_hello(false);
InitializeServerParametersToEnableFullHello();
handshaker_.DoSendCHLOTest(&state_);
EXPECT_FALSE(connection_->fully_pad_during_crypto_handshake());
}
}
} |
228 | cpp | google/quiche | quic_version_manager | quiche/quic/core/quic_version_manager.cc | quiche/quic/core/quic_version_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_VERSION_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_VERSION_MANAGER_H_
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QuicVersionManager {
public:
explicit QuicVersionManager(ParsedQuicVersionVector supported_versions);
virtual ~QuicVersionManager();
const ParsedQuicVersionVector& GetSupportedVersions();
const ParsedQuicVersionVector& GetSupportedVersionsWithOnlyHttp3();
const std::vector<std::string>& GetSupportedAlpns();
protected:
void MaybeRefilterSupportedVersions();
virtual void RefilterSupportedVersions();
const QuicTransportVersionVector& filtered_transport_versions() const {
return filtered_transport_versions_;
}
void AddCustomAlpn(const std::string& alpn);
private:
bool enable_version_2_draft_08_ = false;
bool disable_version_rfcv1_ = true;
bool disable_version_draft_29_ = true;
bool disable_version_q046_ = true;
const ParsedQuicVersionVector allowed_supported_versions_;
ParsedQuicVersionVector filtered_supported_versions_;
ParsedQuicVersionVector filtered_supported_versions_with_http3_;
QuicTransportVersionVector filtered_transport_versions_;
std::vector<std::string> filtered_supported_alpns_;
};
}
#endif
#include "quiche/quic/core/quic_version_manager.h"
#include <algorithm>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
QuicVersionManager::QuicVersionManager(
ParsedQuicVersionVector supported_versions)
: allowed_supported_versions_(std::move(supported_versions)) {}
QuicVersionManager::~QuicVersionManager() {}
const ParsedQuicVersionVector& QuicVersionManager::GetSupportedVersions() {
MaybeRefilterSupportedVersions();
return filtered_supported_versions_;
}
const ParsedQuicVersionVector&
QuicVersionManager::GetSupportedVersionsWithOnlyHttp3() {
MaybeRefilterSupportedVersions();
return filtered_supported_versions_with_http3_;
}
const std::vector<std::string>& QuicVersionManager::GetSupportedAlpns() {
MaybeRefilterSupportedVersions();
return filtered_supported_alpns_;
}
void QuicVersionManager::MaybeRefilterSupportedVersions() {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
if (enable_version_2_draft_08_ !=
GetQuicReloadableFlag(quic_enable_version_rfcv2) ||
disable_version_rfcv1_ !=
GetQuicReloadableFlag(quic_disable_version_rfcv1) ||
disable_version_draft_29_ !=
GetQuicReloadableFlag(quic_disable_version_draft_29) ||
disable_version_q046_ !=
GetQuicReloadableFlag(quic_disable_version_q046)) {
enable_version_2_draft_08_ =
GetQuicReloadableFlag(quic_enable_version_rfcv2);
disable_version_rfcv1_ = GetQuicReloadableFlag(quic_disable_version_rfcv1);
disable_version_draft_29_ =
GetQuicReloadableFlag(quic_disable_version_draft_29);
disable_version_q046_ = GetQuicReloadableFlag(quic_disable_version_q046);
RefilterSupportedVersions();
}
}
void QuicVersionManager::RefilterSupportedVersions() {
filtered_supported_versions_ =
FilterSupportedVersions(allowed_supported_versions_);
filtered_supported_versions_with_http3_.clear();
filtered_transport_versions_.clear();
filtered_supported_alpns_.clear();
for (const ParsedQuicVersion& version : filtered_supported_versions_) {
auto transport_version = version.transport_version;
if (std::find(filtered_transport_versions_.begin(),
filtered_transport_versions_.end(),
transport_version) == filtered_transport_versions_.end()) {
filtered_transport_versions_.push_back(transport_version);
}
if (version.UsesHttp3()) {
filtered_supported_versions_with_http3_.push_back(version);
}
if (std::find(filtered_supported_alpns_.begin(),
filtered_supported_alpns_.end(),
AlpnForVersion(version)) == filtered_supported_alpns_.end()) {
filtered_supported_alpns_.emplace_back(AlpnForVersion(version));
}
}
}
void QuicVersionManager::AddCustomAlpn(const std::string& alpn) {
filtered_supported_alpns_.push_back(alpn);
}
} | #include "quiche/quic/core/quic_version_manager.h"
#include "absl/base/macros.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
using ::testing::ElementsAre;
namespace quic {
namespace test {
namespace {
class QuicVersionManagerTest : public QuicTest {};
TEST_F(QuicVersionManagerTest, QuicVersionManager) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
QuicEnableVersion(version);
}
QuicDisableVersion(ParsedQuicVersion::RFCv2());
QuicDisableVersion(ParsedQuicVersion::RFCv1());
QuicDisableVersion(ParsedQuicVersion::Draft29());
QuicVersionManager manager(AllSupportedVersions());
ParsedQuicVersionVector expected_parsed_versions;
expected_parsed_versions.push_back(ParsedQuicVersion::Q046());
EXPECT_EQ(expected_parsed_versions, manager.GetSupportedVersions());
EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
manager.GetSupportedVersions());
EXPECT_TRUE(manager.GetSupportedVersionsWithOnlyHttp3().empty());
EXPECT_THAT(manager.GetSupportedAlpns(), ElementsAre("h3-Q046"));
QuicEnableVersion(ParsedQuicVersion::Draft29());
expected_parsed_versions.insert(expected_parsed_versions.begin(),
ParsedQuicVersion::Draft29());
EXPECT_EQ(expected_parsed_versions, manager.GetSupportedVersions());
EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
manager.GetSupportedVersions());
EXPECT_EQ(1u, manager.GetSupportedVersionsWithOnlyHttp3().size());
EXPECT_EQ(CurrentSupportedHttp3Versions(),
manager.GetSupportedVersionsWithOnlyHttp3());
EXPECT_THAT(manager.GetSupportedAlpns(), ElementsAre("h3-29", "h3-Q046"));
QuicEnableVersion(ParsedQuicVersion::RFCv1());
expected_parsed_versions.insert(expected_parsed_versions.begin(),
ParsedQuicVersion::RFCv1());
EXPECT_EQ(expected_parsed_versions, manager.GetSupportedVersions());
EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
manager.GetSupportedVersions());
EXPECT_EQ(2u, manager.GetSupportedVersionsWithOnlyHttp3().size());
EXPECT_EQ(CurrentSupportedHttp3Versions(),
manager.GetSupportedVersionsWithOnlyHttp3());
EXPECT_THAT(manager.GetSupportedAlpns(),
ElementsAre("h3", "h3-29", "h3-Q046"));
QuicEnableVersion(ParsedQuicVersion::RFCv2());
expected_parsed_versions.insert(expected_parsed_versions.begin(),
ParsedQuicVersion::RFCv2());
EXPECT_EQ(expected_parsed_versions, manager.GetSupportedVersions());
EXPECT_EQ(FilterSupportedVersions(AllSupportedVersions()),
manager.GetSupportedVersions());
EXPECT_EQ(3u, manager.GetSupportedVersionsWithOnlyHttp3().size());
EXPECT_EQ(CurrentSupportedHttp3Versions(),
manager.GetSupportedVersionsWithOnlyHttp3());
EXPECT_THAT(manager.GetSupportedAlpns(),
ElementsAre("h3", "h3-29", "h3-Q046"));
}
}
}
} |
229 | cpp | google/quiche | quic_error_codes | quiche/quic/core/quic_error_codes.cc | quiche/quic/core/quic_error_codes_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_ERROR_CODES_H_
#define QUICHE_QUIC_CORE_QUIC_ERROR_CODES_H_
#include <cstdint>
#include <limits>
#include <string>
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
enum QuicRstStreamErrorCode : uint32_t {
QUIC_STREAM_NO_ERROR = 0,
QUIC_ERROR_PROCESSING_STREAM = 1,
QUIC_MULTIPLE_TERMINATION_OFFSETS = 2,
QUIC_BAD_APPLICATION_PAYLOAD = 3,
QUIC_STREAM_CONNECTION_ERROR = 4,
QUIC_STREAM_PEER_GOING_AWAY = 5,
QUIC_STREAM_CANCELLED = 6,
QUIC_RST_ACKNOWLEDGEMENT = 7,
QUIC_REFUSED_STREAM = 8,
QUIC_INVALID_PROMISE_URL = 9,
QUIC_UNAUTHORIZED_PROMISE_URL = 10,
QUIC_DUPLICATE_PROMISE_URL = 11,
QUIC_PROMISE_VARY_MISMATCH = 12,
QUIC_INVALID_PROMISE_METHOD = 13,
QUIC_PUSH_STREAM_TIMED_OUT = 14,
QUIC_HEADERS_TOO_LARGE = 15,
QUIC_STREAM_TTL_EXPIRED = 16,
QUIC_DATA_AFTER_CLOSE_OFFSET = 17,
QUIC_STREAM_GENERAL_PROTOCOL_ERROR = 18,
QUIC_STREAM_INTERNAL_ERROR = 19,
QUIC_STREAM_STREAM_CREATION_ERROR = 20,
QUIC_STREAM_CLOSED_CRITICAL_STREAM = 21,
QUIC_STREAM_FRAME_UNEXPECTED = 22,
QUIC_STREAM_FRAME_ERROR = 23,
QUIC_STREAM_EXCESSIVE_LOAD = 24,
QUIC_STREAM_ID_ERROR = 25,
QUIC_STREAM_SETTINGS_ERROR = 26,
QUIC_STREAM_MISSING_SETTINGS = 27,
QUIC_STREAM_REQUEST_REJECTED = 28,
QUIC_STREAM_REQUEST_INCOMPLETE = 29,
QUIC_STREAM_CONNECT_ERROR = 30,
QUIC_STREAM_VERSION_FALLBACK = 31,
QUIC_STREAM_DECOMPRESSION_FAILED = 32,
QUIC_STREAM_ENCODER_STREAM_ERROR = 33,
QUIC_STREAM_DECODER_STREAM_ERROR = 34,
QUIC_STREAM_UNKNOWN_APPLICATION_ERROR_CODE = 35,
QUIC_STREAM_WEBTRANSPORT_SESSION_GONE = 36,
QUIC_STREAM_WEBTRANSPORT_BUFFERED_STREAMS_LIMIT_EXCEEDED = 37,
QUIC_APPLICATION_DONE_WITH_STREAM = 38,
QUIC_STREAM_LAST_ERROR = 39,
};
static_assert(static_cast<int>(QUIC_STREAM_LAST_ERROR) <=
std::numeric_limits<uint8_t>::max(),
"QuicRstStreamErrorCode exceeds single octet");
enum QuicErrorCode : uint32_t {
QUIC_NO_ERROR = 0,
QUIC_INTERNAL_ERROR = 1,
QUIC_STREAM_DATA_AFTER_TERMINATION = 2,
QUIC_INVALID_PACKET_HEADER = 3,
QUIC_INVALID_FRAME_DATA = 4,
QUIC_MISSING_PAYLOAD = 48,
QUIC_INVALID_FEC_DATA = 5,
QUIC_INVALID_STREAM_DATA = 46,
QUIC_OVERLAPPING_STREAM_DATA = 87,
QUIC_UNENCRYPTED_STREAM_DATA = 61,
QUIC_ATTEMPT_TO_SEND_UNENCRYPTED_STREAM_DATA = 88,
QUIC_MAYBE_CORRUPTED_MEMORY = 89,
QUIC_UNENCRYPTED_FEC_DATA = 77,
QUIC_INVALID_RST_STREAM_DATA = 6,
QUIC_INVALID_CONNECTION_CLOSE_DATA = 7,
QUIC_INVALID_GOAWAY_DATA = 8,
QUIC_INVALID_WINDOW_UPDATE_DATA = 57,
QUIC_INVALID_BLOCKED_DATA = 58,
QUIC_INVALID_STOP_WAITING_DATA = 60,
QUIC_INVALID_PATH_CLOSE_DATA = 78,
QUIC_INVALID_ACK_DATA = 9,
QUIC_INVALID_MESSAGE_DATA = 112,
QUIC_INVALID_VERSION_NEGOTIATION_PACKET = 10,
QUIC_INVALID_PUBLIC_RST_PACKET = 11,
QUIC_DECRYPTION_FAILURE = 12,
QUIC_ENCRYPTION_FAILURE = 13,
QUIC_PACKET_TOO_LARGE = 14,
QUIC_PEER_GOING_AWAY = 16,
QUIC_INVALID_STREAM_ID = 17,
QUIC_INVALID_PRIORITY = 49,
QUIC_TOO_MANY_OPEN_STREAMS = 18,
QUIC_TOO_MANY_AVAILABLE_STREAMS = 76,
QUIC_PUBLIC_RESET = 19,
QUIC_INVALID_VERSION = 20,
QUIC_PACKET_WRONG_VERSION = 212,
QUIC_INVALID_HEADER_ID = 22,
QUIC_INVALID_NEGOTIATED_VALUE = 23,
QUIC_DECOMPRESSION_FAILURE = 24,
QUIC_NETWORK_IDLE_TIMEOUT = 25,
QUIC_HANDSHAKE_TIMEOUT = 67,
QUIC_ERROR_MIGRATING_ADDRESS = 26,
QUIC_ERROR_MIGRATING_PORT = 86,
QUIC_PACKET_WRITE_ERROR = 27,
QUIC_PACKET_READ_ERROR = 51,
QUIC_EMPTY_STREAM_FRAME_NO_FIN = 50,
QUIC_INVALID_HEADERS_STREAM_DATA = 56,
QUIC_HEADERS_STREAM_DATA_DECOMPRESS_FAILURE = 97,
QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA = 59,
QUIC_FLOW_CONTROL_SENT_TOO_MUCH_DATA = 63,
QUIC_FLOW_CONTROL_INVALID_WINDOW = 64,
QUIC_CONNECTION_IP_POOLED = 62,
QUIC_TOO_MANY_OUTSTANDING_SENT_PACKETS = 68,
QUIC_TOO_MANY_OUTSTANDING_RECEIVED_PACKETS = 69,
QUIC_CONNECTION_CANCELLED = 70,
QUIC_BAD_PACKET_LOSS_RATE = 71,
QUIC_PUBLIC_RESETS_POST_HANDSHAKE = 73,
QUIC_FAILED_TO_SERIALIZE_PACKET = 75,
QUIC_TOO_MANY_RTOS = 85,
QUIC_HANDSHAKE_FAILED = 28,
QUIC_HANDSHAKE_FAILED_PACKETS_BUFFERED_TOO_LONG = 214,
QUIC_CRYPTO_TAGS_OUT_OF_ORDER = 29,
QUIC_CRYPTO_TOO_MANY_ENTRIES = 30,
QUIC_CRYPTO_INVALID_VALUE_LENGTH = 31,
QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE = 32,
QUIC_INVALID_CRYPTO_MESSAGE_TYPE = 33,
QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER = 34,
QUIC_INVALID_CHANNEL_ID_SIGNATURE = 52,
QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND = 35,
QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP = 36,
QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND = 37,
QUIC_UNSUPPORTED_PROOF_DEMAND = 94,
QUIC_CRYPTO_INTERNAL_ERROR = 38,
QUIC_CRYPTO_VERSION_NOT_SUPPORTED = 39,
QUIC_CRYPTO_NO_SUPPORT = 40,
QUIC_CRYPTO_TOO_MANY_REJECTS = 41,
QUIC_PROOF_INVALID = 42,
QUIC_CRYPTO_DUPLICATE_TAG = 43,
QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT = 44,
QUIC_CRYPTO_SERVER_CONFIG_EXPIRED = 45,
QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED = 53,
QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO = 54,
QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE = 65,
QUIC_CRYPTO_CHLO_TOO_LARGE = 90,
QUIC_VERSION_NEGOTIATION_MISMATCH = 55,
QUIC_BAD_MULTIPATH_FLAG = 79,
QUIC_MULTIPATH_PATH_DOES_NOT_EXIST = 91,
QUIC_MULTIPATH_PATH_NOT_ACTIVE = 92,
QUIC_IP_ADDRESS_CHANGED = 80,
QUIC_CONNECTION_MIGRATION_NO_MIGRATABLE_STREAMS = 81,
QUIC_CONNECTION_MIGRATION_TOO_MANY_CHANGES = 82,
QUIC_CONNECTION_MIGRATION_NO_NEW_NETWORK = 83,
QUIC_CONNECTION_MIGRATION_NON_MIGRATABLE_STREAM = 84,
QUIC_CONNECTION_MIGRATION_DISABLED_BY_CONFIG = 99,
QUIC_CONNECTION_MIGRATION_INTERNAL_ERROR = 100,
QUIC_CONNECTION_MIGRATION_HANDSHAKE_UNCONFIRMED = 111,
QUIC_PEER_PORT_CHANGE_HANDSHAKE_UNCONFIRMED = 194,
QUIC_TOO_MANY_STREAM_DATA_INTERVALS = 93,
QUIC_STREAM_SEQUENCER_INVALID_STATE = 95,
QUIC_TOO_MANY_SESSIONS_ON_SERVER = 96,
QUIC_STREAM_LENGTH_OVERFLOW = 98,
QUIC_INVALID_MAX_DATA_FRAME_DATA = 102,
QUIC_INVALID_MAX_STREAM_DATA_FRAME_DATA = 103,
QUIC_MAX_STREAMS_DATA = 104,
QUIC_STREAMS_BLOCKED_DATA = 105,
QUIC_INVALID_STREAM_BLOCKED_DATA = 106,
QUIC_INVALID_NEW_CONNECTION_ID_DATA = 107,
QUIC_CONNECTION_ID_LIMIT_ERROR = 203,
QUIC_TOO_MANY_CONNECTION_ID_WAITING_TO_RETIRE = 204,
QUIC_INVALID_STOP_SENDING_FRAME_DATA = 108,
QUIC_INVALID_PATH_CHALLENGE_DATA = 109,
QUIC_INVALID_PATH_RESPONSE_DATA = 110,
IETF_QUIC_PROTOCOL_VIOLATION = 113,
QUIC_INVALID_NEW_TOKEN = 114,
QUIC_DATA_RECEIVED_ON_WRITE_UNIDIRECTIONAL_STREAM = 115,
QUIC_TRY_TO_WRITE_DATA_ON_READ_UNIDIRECTIONAL_STREAM = 116,
QUIC_INVALID_RETIRE_CONNECTION_ID_DATA = 117,
QUIC_STREAMS_BLOCKED_ERROR = 118,
QUIC_MAX_STREAMS_ERROR = 119,
QUIC_HTTP_DECODER_ERROR = 120,
QUIC_STALE_CONNECTION_CANCELLED = 121,
QUIC_IETF_GQUIC_ERROR_MISSING = 122,
QUIC_WINDOW_UPDATE_RECEIVED_ON_READ_UNIDIRECTIONAL_STREAM = 123,
QUIC_TOO_MANY_BUFFERED_CONTROL_FRAMES = 124,
QUIC_TRANSPORT_INVALID_CLIENT_INDICATION = 125,
QUIC_QPACK_DECOMPRESSION_FAILED = 126,
QUIC_QPACK_ENCODER_STREAM_ERROR = 127,
QUIC_QPACK_DECODER_STREAM_ERROR = 128,
QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE = 174,
QUIC_QPACK_ENCODER_STREAM_STRING_LITERAL_TOO_LONG = 175,
QUIC_QPACK_ENCODER_STREAM_HUFFMAN_ENCODING_ERROR = 176,
QUIC_QPACK_ENCODER_STREAM_INVALID_STATIC_ENTRY = 177,
QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_STATIC = 178,
QUIC_QPACK_ENCODER_STREAM_INSERTION_INVALID_RELATIVE_INDEX = 179,
QUIC_QPACK_ENCODER_STREAM_INSERTION_DYNAMIC_ENTRY_NOT_FOUND = 180,
QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_DYNAMIC = 181,
QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_LITERAL = 182,
QUIC_QPACK_ENCODER_STREAM_DUPLICATE_INVALID_RELATIVE_INDEX = 183,
QUIC_QPACK_ENCODER_STREAM_DUPLICATE_DYNAMIC_ENTRY_NOT_FOUND = 184,
QUIC_QPACK_ENCODER_STREAM_SET_DYNAMIC_TABLE_CAPACITY = 185,
QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE = 186,
QUIC_QPACK_DECODER_STREAM_INVALID_ZERO_INCREMENT = 187,
QUIC_QPACK_DECODER_STREAM_INCREMENT_OVERFLOW = 188,
QUIC_QPACK_DECODER_STREAM_IMPOSSIBLE_INSERT_COUNT = 189,
QUIC_QPACK_DECODER_STREAM_INCORRECT_ACKNOWLEDGEMENT = 190,
QUIC_STREAM_DATA_BEYOND_CLOSE_OFFSET = 129,
QUIC_STREAM_MULTIPLE_OFFSET = 130,
QUIC_HTTP_FRAME_TOO_LARGE = 131,
QUIC_HTTP_FRAME_ERROR = 132,
QUIC_HTTP_FRAME_UNEXPECTED_ON_SPDY_STREAM = 133,
QUIC_HTTP_FRAME_UNEXPECTED_ON_CONTROL_STREAM = 134,
QUIC_HTTP_INVALID_FRAME_SEQUENCE_ON_SPDY_STREAM = 151,
QUIC_HTTP_INVALID_FRAME_SEQUENCE_ON_CONTROL_STREAM = 152,
QUIC_HTTP_DUPLICATE_UNIDIRECTIONAL_STREAM = 153,
QUIC_HTTP_SERVER_INITIATED_BIDIRECTIONAL_STREAM = 154,
QUIC_HTTP_STREAM_WRONG_DIRECTION = 155,
QUIC_HTTP_CLOSED_CRITICAL_STREAM = 156,
QUIC_HTTP_MISSING_SETTINGS_FRAME = 157,
QUIC_HTTP_DUPLICATE_SETTING_IDENTIFIER = 158,
QUIC_HTTP_INVALID_MAX_PUSH_ID = 159,
QUIC_HTTP_STREAM_LIMIT_TOO_LOW = 160,
QUIC_HTTP_ZERO_RTT_RESUMPTION_SETTINGS_MISMATCH = 164,
QUIC_HTTP_ZERO_RTT_REJECTION_SETTINGS_MISMATCH = 165,
QUIC_HTTP_GOAWAY_INVALID_STREAM_ID = 166,
QUIC_HTTP_GOAWAY_ID_LARGER_THAN_PREVIOUS = 167,
QUIC_HTTP_RECEIVE_SPDY_SETTING = 169,
QUIC_HTTP_RECEIVE_SPDY_FRAME = 171,
QUIC_HTTP_RECEIVE_SERVER_PUSH = 205,
QUIC_HTTP_INVALID_SETTING_VALUE = 207,
QUIC_HPACK_INDEX_VARINT_ERROR = 135,
QUIC_HPACK_NAME_LENGTH_VARINT_ERROR = 136,
QUIC_HPACK_VALUE_LENGTH_VARINT_ERROR = 137,
QUIC_HPACK_NAME_TOO_LONG = 138,
QUIC_HPACK_VALUE_TOO_LONG = 139,
QUIC_HPACK_NAME_HUFFMAN_ERROR = 140,
QUIC_HPACK_VALUE_HUFFMAN_ERROR = 141,
QUIC_HPACK_MISSING_DYNAMIC_TABLE_SIZE_UPDATE = 142,
QUIC_HPACK_INVALID_INDEX = 143,
QUIC_HPACK_INVALID_NAME_INDEX = 144,
QUIC_HPACK_DYNAMIC_TABLE_SIZE_UPDATE_NOT_ALLOWED = 145,
QUIC_HPACK_INITIAL_TABLE_SIZE_UPDATE_IS_ABOVE_LOW_WATER_MARK = 146,
QUIC_HPACK_TABLE_SIZE_UPDATE_IS_ABOVE_ACKNOWLEDGED_SETTING = 147,
QUIC_HPACK_TRUNCATED_BLOCK = 148,
QUIC_HPACK_FRAGMENT_TOO_LONG = 149,
QUIC_HPACK_COMPRESSED_HEADER_SIZE_EXCEEDS_LIMIT = 150,
QUIC_ZERO_RTT_UNRETRANSMITTABLE = 161,
QUIC_ZERO_RTT_REJECTION_LIMIT_REDUCED = 162,
QUIC_ZERO_RTT_RESUMPTION_LIMIT_REDUCED = 163,
QUIC_SILENT_IDLE_TIMEOUT = 168,
QUIC_MISSING_WRITE_KEYS = 170,
QUIC_KEY_UPDATE_ERROR = 172,
QUIC_AEAD_LIMIT_REACHED = 173,
QUIC_MAX_AGE_TIMEOUT = 191,
QUIC_INVALID_0RTT_PACKET_NUMBER_OUT_OF_ORDER = 192,
QUIC_INVALID_PRIORITY_UPDATE = 193,
QUIC_TLS_BAD_CERTIFICATE = 195,
QUIC_TLS_UNSUPPORTED_CERTIFICATE = 196,
QUIC_TLS_CERTIFICATE_REVOKED = 197,
QUIC_TLS_CERTIFICATE_EXPIRED = 198,
QUIC_TLS_CERTIFICATE_UNKNOWN = 199,
QUIC_TLS_INTERNAL_ERROR = 200,
QUIC_TLS_UNRECOGNIZED_NAME = 201,
QUIC_TLS_CERTIFICATE_REQUIRED = 202,
QUIC_INVALID_CHARACTER_IN_FIELD_VALUE = 206,
QUIC_TLS_UNEXPECTED_KEYING_MATERIAL_EXPORT_LABEL = 208,
QUIC_TLS_KEYING_MATERIAL_EXPORTS_MISMATCH = 209,
QUIC_TLS_KEYING_MATERIAL_EXPORT_NOT_AVAILABLE = 210,
QUIC_UNEXPECTED_DATA_BEFORE_ENCRYPTION_ESTABLISHED = 211,
QUIC_SERVER_UNHEALTHY = 213,
QUIC_LAST_ERROR = 215,
};
static_assert(static_cast<uint64_t>(QUIC_LAST_ERROR) <=
static_cast<uint64_t>(std::numeric_limits<uint32_t>::max()),
"QuicErrorCode exceeds four octets");
enum class QuicHttp3ErrorCode {
HTTP3_NO_ERROR = 0x100,
GENERAL_PROTOCOL_ERROR = 0x101,
INTERNAL_ERROR = 0x102,
STREAM_CREATION_ERROR = 0x103,
CLOSED_CRITICAL_STREAM = 0x104,
FRAME_UNEXPECTED = 0x105,
FRAME_ERROR = 0x106,
EXCESSIVE_LOAD = 0x107,
ID_ERROR = 0x108,
SETTINGS_ERROR = 0x109,
MISSING_SETTINGS = 0x10A,
REQUEST_REJECTED = 0x10B,
REQUEST_CANCELLED = 0x10C,
REQUEST_INCOMPLETE = 0x10D,
MESSAGE_ERROR = 0x10E,
CONNECT_ERROR = 0x10F,
VERSION_FALLBACK = 0x110,
};
enum class QuicHttpQpackErrorCode {
DECOMPRESSION_FAILED = 0x200,
ENCODER_STREAM_ERROR = 0x201,
DECODER_STREAM_ERROR = 0x202
};
class QUICHE_EXPORT QuicResetStreamError {
public:
static QuicResetStreamError FromInternal(QuicRstStreamErrorCode code);
static QuicResetStreamError FromIetf(uint64_t code);
static QuicResetStreamError FromIetf(QuicHttp3ErrorCode code);
static QuicResetStreamError FromIetf(QuicHttpQpackErrorCode code);
static QuicResetStreamError NoError() {
return FromInternal(QUIC_STREAM_NO_ERROR);
}
QuicResetStreamError(QuicRstStreamErrorCode internal_code,
uint64_t ietf_application_code)
: internal_code_(internal_code),
ietf_application_code_(ietf_application_code) {}
QuicRstStreamErrorCode internal_code() const { return internal_code_; }
uint64_t ietf_application_code() const { return ietf_application_code_; }
bool operator==(const QuicResetStreamError& other) const {
return internal_code() == other.internal_code() &&
ietf_application_code() == other.ietf_application_code();
}
bool ok() const { return internal_code() == QUIC_STREAM_NO_ERROR; }
private:
QuicRstStreamErrorCode internal_code_;
uint64_t ietf_application_code_;
};
QUICHE_EXPORT QuicErrorCode TlsAlertToQuicErrorCode(uint8_t desc);
QUICHE_EXPORT const char* QuicRstStreamErrorCodeToString(
QuicRstStreamErrorCode error);
QUICHE_EXPORT const char* QuicErrorCodeToString(QuicErrorCode error);
enum QuicIetfTransportErrorCodes : uint64_t {
NO_IETF_QUIC_ERROR = 0x0,
INTERNAL_ERROR = 0x1,
SERVER_BUSY_ERROR = 0x2,
FLOW_CONTROL_ERROR = 0x3,
STREAM_LIMIT_ERROR = 0x4,
STREAM_STATE_ERROR = 0x5,
FINAL_SIZE_ERROR = 0x6,
FRAME_ENCODING_ERROR = 0x7,
TRANSPORT_PARAMETER_ERROR = 0x8,
CONNECTION_ID_LIMIT_ERROR = 0x9,
PROTOCOL_VIOLATION = 0xA,
INVALID_TOKEN = 0xB,
CRYPTO_BUFFER_EXCEEDED = 0xD,
KEY_UPDATE_ERROR = 0xE,
AEAD_LIMIT_REACHED = 0xF,
CRYPTO_ERROR_FIRST = 0x100,
CRYPTO_ERROR_LAST = 0x1FF,
};
QUICHE_EXPORT std::string QuicIetfTransportErrorCodeString(
QuicIetfTransportErrorCodes c);
QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
const QuicIetfTransportErrorCodes& c); | #include "quiche/quic/core/quic_error_codes.h"
#include <cstdint>
#include <string>
#include "openssl/ssl.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
using QuicErrorCodesTest = QuicTest;
TEST_F(QuicErrorCodesTest, QuicErrorCodeToString) {
EXPECT_STREQ("QUIC_NO_ERROR", QuicErrorCodeToString(QUIC_NO_ERROR));
}
TEST_F(QuicErrorCodesTest, QuicIetfTransportErrorCodeString) {
EXPECT_EQ("CRYPTO_ERROR(missing extension)",
QuicIetfTransportErrorCodeString(
static_cast<quic::QuicIetfTransportErrorCodes>(
CRYPTO_ERROR_FIRST + SSL_AD_MISSING_EXTENSION)));
EXPECT_EQ("NO_IETF_QUIC_ERROR",
QuicIetfTransportErrorCodeString(NO_IETF_QUIC_ERROR));
EXPECT_EQ("INTERNAL_ERROR", QuicIetfTransportErrorCodeString(INTERNAL_ERROR));
EXPECT_EQ("SERVER_BUSY_ERROR",
QuicIetfTransportErrorCodeString(SERVER_BUSY_ERROR));
EXPECT_EQ("FLOW_CONTROL_ERROR",
QuicIetfTransportErrorCodeString(FLOW_CONTROL_ERROR));
EXPECT_EQ("STREAM_LIMIT_ERROR",
QuicIetfTransportErrorCodeString(STREAM_LIMIT_ERROR));
EXPECT_EQ("STREAM_STATE_ERROR",
QuicIetfTransportErrorCodeString(STREAM_STATE_ERROR));
EXPECT_EQ("FINAL_SIZE_ERROR",
QuicIetfTransportErrorCodeString(FINAL_SIZE_ERROR));
EXPECT_EQ("FRAME_ENCODING_ERROR",
QuicIetfTransportErrorCodeString(FRAME_ENCODING_ERROR));
EXPECT_EQ("TRANSPORT_PARAMETER_ERROR",
QuicIetfTransportErrorCodeString(TRANSPORT_PARAMETER_ERROR));
EXPECT_EQ("CONNECTION_ID_LIMIT_ERROR",
QuicIetfTransportErrorCodeString(CONNECTION_ID_LIMIT_ERROR));
EXPECT_EQ("PROTOCOL_VIOLATION",
QuicIetfTransportErrorCodeString(PROTOCOL_VIOLATION));
EXPECT_EQ("INVALID_TOKEN", QuicIetfTransportErrorCodeString(INVALID_TOKEN));
EXPECT_EQ("CRYPTO_BUFFER_EXCEEDED",
QuicIetfTransportErrorCodeString(CRYPTO_BUFFER_EXCEEDED));
EXPECT_EQ("KEY_UPDATE_ERROR",
QuicIetfTransportErrorCodeString(KEY_UPDATE_ERROR));
EXPECT_EQ("AEAD_LIMIT_REACHED",
QuicIetfTransportErrorCodeString(AEAD_LIMIT_REACHED));
EXPECT_EQ("Unknown(1024)",
QuicIetfTransportErrorCodeString(
static_cast<quic::QuicIetfTransportErrorCodes>(0x400)));
}
TEST_F(QuicErrorCodesTest, QuicErrorCodeToTransportErrorCode) {
for (uint32_t internal_error_code = 0; internal_error_code < QUIC_LAST_ERROR;
++internal_error_code) {
std::string internal_error_code_string =
QuicErrorCodeToString(static_cast<QuicErrorCode>(internal_error_code));
if (internal_error_code_string == "INVALID_ERROR_CODE") {
continue;
}
QuicErrorCodeToIetfMapping ietf_error_code =
QuicErrorCodeToTransportErrorCode(
static_cast<QuicErrorCode>(internal_error_code));
if (ietf_error_code.is_transport_close) {
QuicIetfTransportErrorCodes transport_error_code =
static_cast<QuicIetfTransportErrorCodes>(ietf_error_code.error_code);
bool is_transport_crypto_error_code =
transport_error_code >= 0x100 && transport_error_code <= 0x1ff;
if (is_transport_crypto_error_code) {
EXPECT_EQ(
internal_error_code,
TlsAlertToQuicErrorCode(transport_error_code - CRYPTO_ERROR_FIRST));
}
bool is_valid_transport_error_code =
transport_error_code <= 0x0f || is_transport_crypto_error_code;
EXPECT_TRUE(is_valid_transport_error_code) << internal_error_code_string;
} else {
uint64_t application_error_code = ietf_error_code.error_code;
bool is_valid_http3_error_code =
application_error_code >= 0x100 && application_error_code <= 0x110;
bool is_valid_qpack_error_code =
application_error_code >= 0x200 && application_error_code <= 0x202;
EXPECT_TRUE(is_valid_http3_error_code || is_valid_qpack_error_code)
<< internal_error_code_string;
}
}
}
using QuicRstErrorCodesTest = QuicTest;
TEST_F(QuicRstErrorCodesTest, QuicRstStreamErrorCodeToString) {
EXPECT_STREQ("QUIC_BAD_APPLICATION_PAYLOAD",
QuicRstStreamErrorCodeToString(QUIC_BAD_APPLICATION_PAYLOAD));
}
TEST_F(QuicRstErrorCodesTest,
IetfResetStreamErrorCodeToRstStreamErrorCodeAndBack) {
for (uint64_t wire_code :
{static_cast<uint64_t>(QuicHttp3ErrorCode::HTTP3_NO_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::GENERAL_PROTOCOL_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::INTERNAL_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::STREAM_CREATION_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::CLOSED_CRITICAL_STREAM),
static_cast<uint64_t>(QuicHttp3ErrorCode::FRAME_UNEXPECTED),
static_cast<uint64_t>(QuicHttp3ErrorCode::FRAME_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::EXCESSIVE_LOAD),
static_cast<uint64_t>(QuicHttp3ErrorCode::ID_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::SETTINGS_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::MISSING_SETTINGS),
static_cast<uint64_t>(QuicHttp3ErrorCode::REQUEST_REJECTED),
static_cast<uint64_t>(QuicHttp3ErrorCode::REQUEST_CANCELLED),
static_cast<uint64_t>(QuicHttp3ErrorCode::REQUEST_INCOMPLETE),
static_cast<uint64_t>(QuicHttp3ErrorCode::CONNECT_ERROR),
static_cast<uint64_t>(QuicHttp3ErrorCode::VERSION_FALLBACK),
static_cast<uint64_t>(QuicHttpQpackErrorCode::DECOMPRESSION_FAILED),
static_cast<uint64_t>(QuicHttpQpackErrorCode::ENCODER_STREAM_ERROR),
static_cast<uint64_t>(QuicHttpQpackErrorCode::DECODER_STREAM_ERROR)}) {
QuicRstStreamErrorCode rst_stream_error_code =
IetfResetStreamErrorCodeToRstStreamErrorCode(wire_code);
EXPECT_EQ(wire_code, RstStreamErrorCodeToIetfResetStreamErrorCode(
rst_stream_error_code));
}
}
}
}
} |
230 | cpp | google/quiche | quic_blocked_writer_list | quiche/quic/core/quic_blocked_writer_list.cc | quiche/quic/core/quic_blocked_writer_list_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_BLOCKED_WRITER_LIST_H_
#define QUICHE_QUIC_CORE_QUIC_BLOCKED_WRITER_LIST_H_
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
class QUICHE_EXPORT QuicBlockedWriterList {
public:
void Add(QuicBlockedWriterInterface& blocked_writer);
bool Empty() const;
bool Remove(QuicBlockedWriterInterface& blocked_writer);
void OnWriterUnblocked();
private:
using WriteBlockedList =
quiche::QuicheLinkedHashMap<QuicBlockedWriterInterface*, bool>;
WriteBlockedList write_blocked_list_;
};
}
#endif
#include "quiche/quic/core/quic_blocked_writer_list.h"
#include <utility>
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
namespace quic {
void QuicBlockedWriterList::Add(QuicBlockedWriterInterface& blocked_writer) {
if (!blocked_writer.IsWriterBlocked()) {
QUIC_BUG(quic_bug_12724_4)
<< "Tried to add writer into blocked list when it shouldn't be added";
return;
}
write_blocked_list_.insert(std::make_pair(&blocked_writer, true));
}
bool QuicBlockedWriterList::Empty() const {
return write_blocked_list_.empty();
}
bool QuicBlockedWriterList::Remove(QuicBlockedWriterInterface& blocked_writer) {
return write_blocked_list_.erase(&blocked_writer) != 0;
}
void QuicBlockedWriterList::OnWriterUnblocked() {
const size_t num_blocked_writers_before = write_blocked_list_.size();
WriteBlockedList temp_list;
temp_list.swap(write_blocked_list_);
QUICHE_DCHECK(write_blocked_list_.empty());
while (!temp_list.empty()) {
QuicBlockedWriterInterface* blocked_writer = temp_list.begin()->first;
temp_list.erase(temp_list.begin());
blocked_writer->OnBlockedWriterCanWrite();
}
const size_t num_blocked_writers_after = write_blocked_list_.size();
if (num_blocked_writers_after != 0) {
if (num_blocked_writers_before == num_blocked_writers_after) {
QUIC_CODE_COUNT(quic_zero_progress_on_can_write);
} else {
QUIC_CODE_COUNT(quic_blocked_again_on_can_write);
}
}
}
} | #include "quiche/quic/core/quic_blocked_writer_list.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
using testing::Invoke;
using testing::Return;
namespace {
class TestWriter : public QuicBlockedWriterInterface {
public:
~TestWriter() override = default;
MOCK_METHOD(void, OnBlockedWriterCanWrite, ());
MOCK_METHOD(bool, IsWriterBlocked, (), (const));
};
}
TEST(QuicBlockedWriterList, Empty) {
QuicBlockedWriterList list;
EXPECT_TRUE(list.Empty());
}
TEST(QuicBlockedWriterList, NotEmpty) {
QuicBlockedWriterList list;
testing::StrictMock<TestWriter> writer1;
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
EXPECT_FALSE(list.Empty());
list.Remove(writer1);
EXPECT_TRUE(list.Empty());
}
TEST(QuicBlockedWriterList, OnWriterUnblocked) {
QuicBlockedWriterList list;
testing::StrictMock<TestWriter> writer1;
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
EXPECT_CALL(writer1, OnBlockedWriterCanWrite());
list.OnWriterUnblocked();
EXPECT_TRUE(list.Empty());
}
TEST(QuicBlockedWriterList, OnWriterUnblockedInOrder) {
QuicBlockedWriterList list;
testing::StrictMock<TestWriter> writer1;
testing::StrictMock<TestWriter> writer2;
testing::StrictMock<TestWriter> writer3;
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer2, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer3, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
list.Add(writer2);
list.Add(writer3);
testing::InSequence s;
EXPECT_CALL(writer1, OnBlockedWriterCanWrite());
EXPECT_CALL(writer2, OnBlockedWriterCanWrite());
EXPECT_CALL(writer3, OnBlockedWriterCanWrite());
list.OnWriterUnblocked();
EXPECT_TRUE(list.Empty());
}
TEST(QuicBlockedWriterList, OnWriterUnblockedInOrderAfterReinsertion) {
QuicBlockedWriterList list;
testing::StrictMock<TestWriter> writer1;
testing::StrictMock<TestWriter> writer2;
testing::StrictMock<TestWriter> writer3;
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer2, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer3, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
list.Add(writer2);
list.Add(writer3);
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
testing::InSequence s;
EXPECT_CALL(writer1, OnBlockedWriterCanWrite());
EXPECT_CALL(writer2, OnBlockedWriterCanWrite());
EXPECT_CALL(writer3, OnBlockedWriterCanWrite());
list.OnWriterUnblocked();
EXPECT_TRUE(list.Empty());
}
TEST(QuicBlockedWriterList, OnWriterUnblockedThenBlocked) {
QuicBlockedWriterList list;
testing::StrictMock<TestWriter> writer1;
testing::StrictMock<TestWriter> writer2;
testing::StrictMock<TestWriter> writer3;
EXPECT_CALL(writer1, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer2, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer3, IsWriterBlocked()).WillOnce(Return(true));
list.Add(writer1);
list.Add(writer2);
list.Add(writer3);
EXPECT_CALL(writer1, OnBlockedWriterCanWrite());
EXPECT_CALL(writer2, IsWriterBlocked()).WillOnce(Return(true));
EXPECT_CALL(writer2, OnBlockedWriterCanWrite()).WillOnce(Invoke([&]() {
list.Add(writer2);
}));
EXPECT_CALL(writer3, OnBlockedWriterCanWrite());
list.OnWriterUnblocked();
EXPECT_FALSE(list.Empty());
EXPECT_CALL(writer2, OnBlockedWriterCanWrite());
list.OnWriterUnblocked();
EXPECT_TRUE(list.Empty());
}
} |
231 | cpp | google/quiche | quic_data_writer | quiche/quic/core/quic_data_writer.cc | quiche/quic/core/quic_data_writer_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_DATA_WRITER_H_
#define QUICHE_QUIC_CORE_QUIC_DATA_WRITER_H_
#include <cstddef>
#include <cstdint>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/quiche_data_writer.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
class QUICHE_EXPORT QuicDataWriter : public quiche::QuicheDataWriter {
public:
QuicDataWriter(size_t size, char* buffer);
QuicDataWriter(size_t size, char* buffer, quiche::Endianness endianness);
QuicDataWriter(const QuicDataWriter&) = delete;
QuicDataWriter& operator=(const QuicDataWriter&) = delete;
~QuicDataWriter();
bool WriteUFloat16(uint64_t value);
bool WriteConnectionId(QuicConnectionId connection_id);
bool WriteLengthPrefixedConnectionId(QuicConnectionId connection_id);
bool WriteRandomBytes(QuicRandom* random, size_t length);
bool WriteInsecureRandomBytes(QuicRandom* random, size_t length);
};
}
#endif
#include "quiche/quic/core/quic_data_writer.h"
#include <algorithm>
#include <limits>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
QuicDataWriter::QuicDataWriter(size_t size, char* buffer)
: quiche::QuicheDataWriter(size, buffer) {}
QuicDataWriter::QuicDataWriter(size_t size, char* buffer,
quiche::Endianness endianness)
: quiche::QuicheDataWriter(size, buffer, endianness) {}
QuicDataWriter::~QuicDataWriter() {}
bool QuicDataWriter::WriteUFloat16(uint64_t value) {
uint16_t result;
if (value < (UINT64_C(1) << kUFloat16MantissaEffectiveBits)) {
result = static_cast<uint16_t>(value);
} else if (value >= kUFloat16MaxValue) {
result = std::numeric_limits<uint16_t>::max();
} else {
uint16_t exponent = 0;
for (uint16_t offset = 16; offset > 0; offset /= 2) {
if (value >= (UINT64_C(1) << (kUFloat16MantissaBits + offset))) {
exponent += offset;
value >>= offset;
}
}
QUICHE_DCHECK_GE(exponent, 1);
QUICHE_DCHECK_LE(exponent, kUFloat16MaxExponent);
QUICHE_DCHECK_GE(value, UINT64_C(1) << kUFloat16MantissaBits);
QUICHE_DCHECK_LT(value, UINT64_C(1) << kUFloat16MantissaEffectiveBits);
result = static_cast<uint16_t>(value + (exponent << kUFloat16MantissaBits));
}
if (endianness() == quiche::NETWORK_BYTE_ORDER) {
result = quiche::QuicheEndian::HostToNet16(result);
}
return WriteBytes(&result, sizeof(result));
}
bool QuicDataWriter::WriteConnectionId(QuicConnectionId connection_id) {
if (connection_id.IsEmpty()) {
return true;
}
return WriteBytes(connection_id.data(), connection_id.length());
}
bool QuicDataWriter::WriteLengthPrefixedConnectionId(
QuicConnectionId connection_id) {
return WriteUInt8(connection_id.length()) && WriteConnectionId(connection_id);
}
bool QuicDataWriter::WriteRandomBytes(QuicRandom* random, size_t length) {
char* dest = BeginWrite(length);
if (!dest) {
return false;
}
random->RandBytes(dest, length);
IncreaseLength(length);
return true;
}
bool QuicDataWriter::WriteInsecureRandomBytes(QuicRandom* random,
size_t length) {
char* dest = BeginWrite(length);
if (!dest) {
return false;
}
random->InsecureRandBytes(dest, length);
IncreaseLength(length);
return true;
}
} | #include "quiche/quic/core/quic_data_writer.h"
#include <cstdint>
#include <cstring>
#include <string>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/quiche_endian.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
namespace quic {
namespace test {
namespace {
char* AsChars(unsigned char* data) { return reinterpret_cast<char*>(data); }
struct TestParams {
explicit TestParams(quiche::Endianness endianness) : endianness(endianness) {}
quiche::Endianness endianness;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
(p.endianness == quiche::NETWORK_BYTE_ORDER ? "Network" : "Host"),
"ByteOrder");
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
for (quiche::Endianness endianness :
{quiche::NETWORK_BYTE_ORDER, quiche::HOST_BYTE_ORDER}) {
params.push_back(TestParams(endianness));
}
return params;
}
class QuicDataWriterTest : public QuicTestWithParam<TestParams> {};
INSTANTIATE_TEST_SUITE_P(QuicDataWriterTests, QuicDataWriterTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QuicDataWriterTest, SanityCheckUFloat16Consts) {
EXPECT_EQ(30, kUFloat16MaxExponent);
EXPECT_EQ(11, kUFloat16MantissaBits);
EXPECT_EQ(12, kUFloat16MantissaEffectiveBits);
EXPECT_EQ(UINT64_C(0x3FFC0000000), kUFloat16MaxValue);
}
TEST_P(QuicDataWriterTest, WriteUFloat16) {
struct TestCase {
uint64_t decoded;
uint16_t encoded;
};
TestCase test_cases[] = {
{0, 0},
{1, 1},
{2, 2},
{3, 3},
{4, 4},
{5, 5},
{6, 6},
{7, 7},
{15, 15},
{31, 31},
{42, 42},
{123, 123},
{1234, 1234},
{2046, 2046},
{2047, 2047},
{2048, 2048},
{2049, 2049},
{4094, 4094},
{4095, 4095},
{4096, 4096},
{4097, 4096},
{4098, 4097},
{4099, 4097},
{4100, 4098},
{4101, 4098},
{8190, 6143},
{8191, 6143},
{8192, 6144},
{8193, 6144},
{8194, 6144},
{8195, 6144},
{8196, 6145},
{8197, 6145},
{0x7FF8000, 0x87FF},
{0x7FFFFFF, 0x87FF},
{0x8000000, 0x8800},
{0xFFF0000, 0x8FFF},
{0xFFFFFFF, 0x8FFF},
{0x10000000, 0x9000},
{0x1FFFFFFFFFE, 0xF7FF},
{0x1FFFFFFFFFF, 0xF7FF},
{0x20000000000, 0xF800},
{0x20000000001, 0xF800},
{0x2003FFFFFFE, 0xF800},
{0x2003FFFFFFF, 0xF800},
{0x20040000000, 0xF801},
{0x20040000001, 0xF801},
{0x3FF80000000, 0xFFFE},
{0x3FFBFFFFFFF, 0xFFFE},
{0x3FFC0000000, 0xFFFF},
{0x3FFC0000001, 0xFFFF},
{0x3FFFFFFFFFF, 0xFFFF},
{0x40000000000, 0xFFFF},
{0xFFFFFFFFFFFFFFFF, 0xFFFF},
};
int num_test_cases = sizeof(test_cases) / sizeof(test_cases[0]);
for (int i = 0; i < num_test_cases; ++i) {
char buffer[2];
QuicDataWriter writer(2, buffer, GetParam().endianness);
EXPECT_TRUE(writer.WriteUFloat16(test_cases[i].decoded));
uint16_t result = *reinterpret_cast<uint16_t*>(writer.data());
if (GetParam().endianness == quiche::NETWORK_BYTE_ORDER) {
result = quiche::QuicheEndian::HostToNet16(result);
}
EXPECT_EQ(test_cases[i].encoded, result);
}
}
TEST_P(QuicDataWriterTest, ReadUFloat16) {
struct TestCase {
uint64_t decoded;
uint16_t encoded;
};
TestCase test_cases[] = {
{0, 0},
{1, 1},
{2, 2},
{3, 3},
{4, 4},
{5, 5},
{6, 6},
{7, 7},
{15, 15},
{31, 31},
{42, 42},
{123, 123},
{1234, 1234},
{2046, 2046},
{2047, 2047},
{2048, 2048},
{2049, 2049},
{4094, 4094},
{4095, 4095},
{4096, 4096},
{4098, 4097},
{4100, 4098},
{8190, 6143},
{8192, 6144},
{8196, 6145},
{0x7FF8000, 0x87FF},
{0x8000000, 0x8800},
{0xFFF0000, 0x8FFF},
{0x10000000, 0x9000},
{0x1FFE0000000, 0xF7FF},
{0x20000000000, 0xF800},
{0x20040000000, 0xF801},
{0x3FF80000000, 0xFFFE},
{0x3FFC0000000, 0xFFFF},
};
int num_test_cases = sizeof(test_cases) / sizeof(test_cases[0]);
for (int i = 0; i < num_test_cases; ++i) {
uint16_t encoded_ufloat = test_cases[i].encoded;
if (GetParam().endianness == quiche::NETWORK_BYTE_ORDER) {
encoded_ufloat = quiche::QuicheEndian::HostToNet16(encoded_ufloat);
}
QuicDataReader reader(reinterpret_cast<char*>(&encoded_ufloat), 2,
GetParam().endianness);
uint64_t value;
EXPECT_TRUE(reader.ReadUFloat16(&value));
EXPECT_EQ(test_cases[i].decoded, value);
}
}
TEST_P(QuicDataWriterTest, RoundTripUFloat16) {
uint64_t previous_value = 0;
for (uint16_t i = 1; i < 0xFFFF; ++i) {
uint16_t read_number = i;
if (GetParam().endianness == quiche::NETWORK_BYTE_ORDER) {
read_number = quiche::QuicheEndian::HostToNet16(read_number);
}
QuicDataReader reader(reinterpret_cast<char*>(&read_number), 2,
GetParam().endianness);
uint64_t value;
EXPECT_TRUE(reader.ReadUFloat16(&value));
if (i < 4097) {
EXPECT_EQ(i, value);
}
EXPECT_LT(previous_value, value);
if (i > 2000) {
EXPECT_GT(previous_value * 1005, value * 1000);
}
EXPECT_LT(value, UINT64_C(0x3FFC0000000));
previous_value = value;
char buffer[6];
QuicDataWriter writer(6, buffer, GetParam().endianness);
EXPECT_TRUE(writer.WriteUFloat16(value - 1));
EXPECT_TRUE(writer.WriteUFloat16(value));
EXPECT_TRUE(writer.WriteUFloat16(value + 1));
uint16_t encoded1 = *reinterpret_cast<uint16_t*>(writer.data());
uint16_t encoded2 = *reinterpret_cast<uint16_t*>(writer.data() + 2);
uint16_t encoded3 = *reinterpret_cast<uint16_t*>(writer.data() + 4);
if (GetParam().endianness == quiche::NETWORK_BYTE_ORDER) {
encoded1 = quiche::QuicheEndian::NetToHost16(encoded1);
encoded2 = quiche::QuicheEndian::NetToHost16(encoded2);
encoded3 = quiche::QuicheEndian::NetToHost16(encoded3);
}
EXPECT_EQ(i - 1, encoded1);
EXPECT_EQ(i, encoded2);
EXPECT_EQ(i < 4096 ? i + 1 : i, encoded3);
}
}
TEST_P(QuicDataWriterTest, WriteConnectionId) {
QuicConnectionId connection_id =
TestConnectionId(UINT64_C(0x0011223344556677));
char big_endian[] = {
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
};
EXPECT_EQ(connection_id.length(), ABSL_ARRAYSIZE(big_endian));
ASSERT_LE(connection_id.length(), 255);
char buffer[255];
QuicDataWriter writer(connection_id.length(), buffer, GetParam().endianness);
EXPECT_TRUE(writer.WriteConnectionId(connection_id));
quiche::test::CompareCharArraysWithHexError(
"connection_id", buffer, connection_id.length(), big_endian,
connection_id.length());
QuicConnectionId read_connection_id;
QuicDataReader reader(buffer, connection_id.length(), GetParam().endianness);
EXPECT_TRUE(
reader.ReadConnectionId(&read_connection_id, ABSL_ARRAYSIZE(big_endian)));
EXPECT_EQ(connection_id, read_connection_id);
}
TEST_P(QuicDataWriterTest, LengthPrefixedConnectionId) {
QuicConnectionId connection_id =
TestConnectionId(UINT64_C(0x0011223344556677));
char length_prefixed_connection_id[] = {
0x08, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
};
EXPECT_EQ(ABSL_ARRAYSIZE(length_prefixed_connection_id),
kConnectionIdLengthSize + connection_id.length());
char buffer[kConnectionIdLengthSize + 255] = {};
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer);
EXPECT_TRUE(writer.WriteLengthPrefixedConnectionId(connection_id));
quiche::test::CompareCharArraysWithHexError(
"WriteLengthPrefixedConnectionId", buffer, writer.length(),
length_prefixed_connection_id,
ABSL_ARRAYSIZE(length_prefixed_connection_id));
memset(buffer, 0, ABSL_ARRAYSIZE(buffer));
QuicDataWriter writer2(ABSL_ARRAYSIZE(buffer), buffer);
EXPECT_TRUE(writer2.WriteUInt8(connection_id.length()));
EXPECT_TRUE(writer2.WriteConnectionId(connection_id));
quiche::test::CompareCharArraysWithHexError(
"Write length then ConnectionId", buffer, writer2.length(),
length_prefixed_connection_id,
ABSL_ARRAYSIZE(length_prefixed_connection_id));
QuicConnectionId read_connection_id;
QuicDataReader reader(buffer, ABSL_ARRAYSIZE(buffer));
EXPECT_TRUE(reader.ReadLengthPrefixedConnectionId(&read_connection_id));
EXPECT_EQ(connection_id, read_connection_id);
uint8_t read_connection_id_length2 = 33;
QuicConnectionId read_connection_id2;
QuicDataReader reader2(buffer, ABSL_ARRAYSIZE(buffer));
ASSERT_TRUE(reader2.ReadUInt8(&read_connection_id_length2));
EXPECT_EQ(connection_id.length(), read_connection_id_length2);
EXPECT_TRUE(reader2.ReadConnectionId(&read_connection_id2,
read_connection_id_length2));
EXPECT_EQ(connection_id, read_connection_id2);
}
TEST_P(QuicDataWriterTest, EmptyConnectionIds) {
QuicConnectionId empty_connection_id = EmptyQuicConnectionId();
char buffer[2];
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer, GetParam().endianness);
EXPECT_TRUE(writer.WriteConnectionId(empty_connection_id));
EXPECT_TRUE(writer.WriteUInt8(1));
EXPECT_TRUE(writer.WriteConnectionId(empty_connection_id));
EXPECT_TRUE(writer.WriteUInt8(2));
EXPECT_TRUE(writer.WriteConnectionId(empty_connection_id));
EXPECT_FALSE(writer.WriteUInt8(3));
EXPECT_EQ(buffer[0], 1);
EXPECT_EQ(buffer[1], 2);
QuicConnectionId read_connection_id = TestConnectionId();
uint8_t read_byte;
QuicDataReader reader(buffer, ABSL_ARRAYSIZE(buffer), GetParam().endianness);
EXPECT_TRUE(reader.ReadConnectionId(&read_connection_id, 0));
EXPECT_EQ(read_connection_id, empty_connection_id);
EXPECT_TRUE(reader.ReadUInt8(&read_byte));
EXPECT_EQ(read_byte, 1);
read_connection_id = TestConnectionId();
EXPECT_TRUE(reader.ReadConnectionId(&read_connection_id, 0));
EXPECT_EQ(read_connection_id, empty_connection_id);
EXPECT_TRUE(reader.ReadUInt8(&read_byte));
EXPECT_EQ(read_byte, 2);
read_connection_id = TestConnectionId();
EXPECT_TRUE(reader.ReadConnectionId(&read_connection_id, 0));
EXPECT_EQ(read_connection_id, empty_connection_id);
EXPECT_FALSE(reader.ReadUInt8(&read_byte));
}
TEST_P(QuicDataWriterTest, WriteTag) {
char CHLO[] = {
'C',
'H',
'L',
'O',
};
const int kBufferLength = sizeof(QuicTag);
char buffer[kBufferLength];
QuicDataWriter writer(kBufferLength, buffer, GetParam().endianness);
writer.WriteTag(kCHLO);
quiche::test::CompareCharArraysWithHexError("CHLO", buffer, kBufferLength,
CHLO, kBufferLength);
QuicTag read_chlo;
QuicDataReader reader(buffer, kBufferLength, GetParam().endianness);
reader.ReadTag(&read_chlo);
EXPECT_EQ(kCHLO, read_chlo);
}
TEST_P(QuicDataWriterTest, Write16BitUnsignedIntegers) {
char little_endian16[] = {0x22, 0x11};
char big_endian16[] = {0x11, 0x22};
char buffer16[2];
{
uint16_t in_memory16 = 0x1122;
QuicDataWriter writer(2, buffer16, GetParam().endianness);
writer.WriteUInt16(in_memory16);
quiche::test::CompareCharArraysWithHexError(
"uint16_t", buffer16, 2,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian16
: little_endian16,
2);
uint16_t read_number16;
QuicDataReader reader(buffer16, 2, GetParam().endianness);
reader.ReadUInt16(&read_number16);
EXPECT_EQ(in_memory16, read_number16);
}
{
uint64_t in_memory16 = 0x0000000000001122;
QuicDataWriter writer(2, buffer16, GetParam().endianness);
writer.WriteBytesToUInt64(2, in_memory16);
quiche::test::CompareCharArraysWithHexError(
"uint16_t", buffer16, 2,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian16
: little_endian16,
2);
uint64_t read_number16;
QuicDataReader reader(buffer16, 2, GetParam().endianness);
reader.ReadBytesToUInt64(2, &read_number16);
EXPECT_EQ(in_memory16, read_number16);
}
}
TEST_P(QuicDataWriterTest, Write24BitUnsignedIntegers) {
char little_endian24[] = {0x33, 0x22, 0x11};
char big_endian24[] = {0x11, 0x22, 0x33};
char buffer24[3];
uint64_t in_memory24 = 0x0000000000112233;
QuicDataWriter writer(3, buffer24, GetParam().endianness);
writer.WriteBytesToUInt64(3, in_memory24);
quiche::test::CompareCharArraysWithHexError(
"uint24", buffer24, 3,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian24
: little_endian24,
3);
uint64_t read_number24;
QuicDataReader reader(buffer24, 3, GetParam().endianness);
reader.ReadBytesToUInt64(3, &read_number24);
EXPECT_EQ(in_memory24, read_number24);
}
TEST_P(QuicDataWriterTest, Write32BitUnsignedIntegers) {
char little_endian32[] = {0x44, 0x33, 0x22, 0x11};
char big_endian32[] = {0x11, 0x22, 0x33, 0x44};
char buffer32[4];
{
uint32_t in_memory32 = 0x11223344;
QuicDataWriter writer(4, buffer32, GetParam().endianness);
writer.WriteUInt32(in_memory32);
quiche::test::CompareCharArraysWithHexError(
"uint32_t", buffer32, 4,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian32
: little_endian32,
4);
uint32_t read_number32;
QuicDataReader reader(buffer32, 4, GetParam().endianness);
reader.ReadUInt32(&read_number32);
EXPECT_EQ(in_memory32, read_number32);
}
{
uint64_t in_memory32 = 0x11223344;
QuicDataWriter writer(4, buffer32, GetParam().endianness);
writer.WriteBytesToUInt64(4, in_memory32);
quiche::test::CompareCharArraysWithHexError(
"uint32_t", buffer32, 4,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian32
: little_endian32,
4);
uint64_t read_number32;
QuicDataReader reader(buffer32, 4, GetParam().endianness);
reader.ReadBytesToUInt64(4, &read_number32);
EXPECT_EQ(in_memory32, read_number32);
}
}
TEST_P(QuicDataWriterTest, Write40BitUnsignedIntegers) {
uint64_t in_memory40 = 0x0000001122334455;
char little_endian40[] = {0x55, 0x44, 0x33, 0x22, 0x11};
char big_endian40[] = {0x11, 0x22, 0x33, 0x44, 0x55};
char buffer40[5];
QuicDataWriter writer(5, buffer40, GetParam().endianness);
writer.WriteBytesToUInt64(5, in_memory40);
quiche::test::CompareCharArraysWithHexError(
"uint40", buffer40, 5,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian40
: little_endian40,
5);
uint64_t read_number40;
QuicDataReader reader(buffer40, 5, GetParam().endianness);
reader.ReadBytesToUInt64(5, &read_number40);
EXPECT_EQ(in_memory40, read_number40);
}
TEST_P(QuicDataWriterTest, Write48BitUnsignedIntegers) {
uint64_t in_memory48 = 0x0000112233445566;
char little_endian48[] = {0x66, 0x55, 0x44, 0x33, 0x22, 0x11};
char big_endian48[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
char buffer48[6];
QuicDataWriter writer(6, buffer48, GetParam().endianness);
writer.WriteBytesToUInt64(6, in_memory48);
quiche::test::CompareCharArraysWithHexError(
"uint48", buffer48, 6,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian48
: little_endian48,
6);
uint64_t read_number48;
QuicDataReader reader(buffer48, 6, GetParam().endianness);
reader.ReadBytesToUInt64(6., &read_number48);
EXPECT_EQ(in_memory48, read_number48);
}
TEST_P(QuicDataWriterTest, Write56BitUnsignedIntegers) {
uint64_t in_memory56 = 0x0011223344556677;
char little_endian56[] = {0x77, 0x66, 0x55, 0x44, 0x33, 0x22, 0x11};
char big_endian56[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
char buffer56[7];
QuicDataWriter writer(7, buffer56, GetParam().endianness);
writer.WriteBytesToUInt64(7, in_memory56);
quiche::test::CompareCharArraysWithHexError(
"uint56", buffer56, 7,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER ? big_endian56
: little_endian56,
7);
uint64_t read_number56;
QuicDataReader reader(buffer56, 7, GetParam().endianness);
reader.ReadBytesToUInt64(7, &read_number56);
EXPECT_EQ(in_memory56, read_number56);
}
TEST_P(QuicDataWriterTest, Write64BitUnsignedIntegers) {
uint64_t in_memory64 = 0x1122334455667788;
unsigned char little_endian64[] = {0x88, 0x77, 0x66, 0x55,
0x44, 0x33, 0x22, 0x11};
unsigned char big_endian64[] = {0x11, 0x22, 0x33, 0x44,
0x55, 0x66, 0x77, 0x88};
char buffer64[8];
QuicDataWriter writer(8, buffer64, GetParam().endianness);
writer.WriteBytesToUInt64(8, in_memory64);
quiche::test::CompareCharArraysWithHexError(
"uint64_t", buffer64, 8,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER
? AsChars(big_endian64)
: AsChars(little_endian64),
8);
uint64_t read_number64;
QuicDataReader reader(buffer64, 8, GetParam().endianness);
reader.ReadBytesToUInt64(8, &read_number64);
EXPECT_EQ(in_memory64, read_number64);
QuicDataWriter writer2(8, buffer64, GetParam().endianness);
writer2.WriteUInt64(in_memory64);
quiche::test::CompareCharArraysWithHexError(
"uint64_t", buffer64, 8,
GetParam().endianness == quiche::NETWORK_BYTE_ORDER
? AsChars(big_endian64)
: AsChars(little_endian64),
8);
read_number64 = 0u;
QuicDataReader reader2(buffer64, 8, GetParam().endianness);
reader2.ReadUInt64(&read_number64);
EXPECT_EQ(in_memory64, read_number64);
}
TEST_P(QuicDataWriterTest, WriteIntegers) {
char buf[43];
uint8_t i8 = 0x01;
uint16_t i16 = 0x0123;
uint32_t i32 = 0x01234567;
uint64_t i64 = 0x0123456789ABCDEF;
QuicDataWriter writer(46, buf, GetParam().endianness);
for (size_t i = 0; i < 10; ++i) {
switch (i) {
case 0u:
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
case 1u:
EXPECT_TRUE(writer.WriteUInt8(i8));
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
case 2u:
EXPECT_TRUE(writer.WriteUInt16(i16));
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
case 3u:
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
case 4u:
EXPECT_TRUE(writer.WriteUInt32(i32));
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
case 5u:
case 6u:
case 7u:
case 8u:
EXPECT_TRUE(writer.WriteBytesToUInt64(i, i64));
break;
default:
EXPECT_FALSE(writer.WriteBytesToUInt64(i, i64));
}
}
QuicDataReader reader(buf, 46, GetParam().endianness);
for (size_t i = 0; i < 10; ++i) {
uint8_t read8;
uint16_t read16;
uint32_t read32;
uint64_t read64;
switch (i) {
case 0u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0u, read64);
break;
case 1u:
EXPECT_TRUE(reader.ReadUInt8(&read8));
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(i8, read8);
EXPECT_EQ(0xEFu, read64);
break;
case 2u:
EXPECT_TRUE(reader.ReadUInt16(&read16));
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(i16, read16);
EXPECT_EQ(0xCDEFu, read64);
break;
case 3u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0xABCDEFu, read64);
break;
case 4u:
EXPECT_TRUE(reader.ReadUInt32(&read32));
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(i32, read32);
EXPECT_EQ(0x89ABCDEFu, read64);
break;
case 5u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0x6789ABCDEFu, read64);
break;
case 6u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0x456789ABCDEFu, read64);
break;
case 7u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0x23456789ABCDEFu, read64);
break;
case 8u:
EXPECT_TRUE(reader.ReadBytesToUInt64(i, &read64));
EXPECT_EQ(0x0123456789ABCDEFu, read64);
break;
default:
EXPECT_FALSE(reader.ReadBytesToUInt64(i, &read64));
}
}
}
TEST_P(QuicDataWriterTest, WriteBytes) {
char bytes[] = {0, 1, 2, 3, 4, 5, 6, 7, 8};
char buf[ABSL_ARRAYSIZE(bytes)];
QuicDataWriter writer(ABSL_ARRAYSIZE(buf), buf, GetParam().endianness);
EXPECT_TRUE(writer.WriteBytes(bytes, ABSL_ARRAYSIZE(bytes)));
for (unsigned int i = 0; i < ABSL_ARRAYSIZE(bytes); ++i) {
EXPECT_EQ(bytes[i], buf[i]);
}
}
const int kMultiVarCount = 1000;
void EncodeDecodeStreamId(uint64_t value_in) {
char buffer[1 * kMultiVarCount];
memset(buffer, 0, sizeof(buffer));
QuicDataWriter writer(sizeof(buffer), static_cast<char*>(buffer),
quiche::Endianness::NETWORK_BYTE_ORDER);
EXPECT_TRUE(writer.WriteVarInt62(value_in));
QuicDataReader reader(buffer, sizeof(buffer),
quiche::Endianness::NETWORK_BYTE_ORDER);
QuicStreamId received_stream_id;
uint64_t temp;
EXPECT_TRUE(reader.ReadVarInt62(&temp));
received_stream_id = static_cast<QuicStreamId>(temp);
EXPECT_EQ(value_in, received_stream_id);
}
TEST_P(QuicDataWriterTest, StreamId1) {
EncodeDecodeStreamId(UINT64_C(0x15));
EncodeDecodeStreamId(UINT64_C(0x1567));
EncodeDecodeStreamId(UINT64_C(0x34567890));
EncodeDecodeStreamId(UINT64_C(0xf4567890));
}
TEST_P(QuicDataWriterTest, WriteRandomBytes) {
char buffer[20];
char expected[20];
for (size_t i = 0; i < 20; ++i) {
expected[i] = 'r';
}
MockRandom random;
QuicDataWriter writer(20, buffer, GetParam().endianness);
EXPECT_FALSE(writer.WriteRandomBytes(&random, 30));
EXPECT_TRUE(writer.WriteRandomBytes(&random, 20));
quiche::test::CompareCharArraysWithHexError("random", buffer, 20, expected,
20);
}
TEST_P(QuicDataWriterTest, WriteInsecureRandomBytes) {
char buffer[20];
char expected[20];
for (size_t i = 0; i < 20; ++i) {
expected[i] = 'r';
}
MockRandom random;
QuicDataWriter writer(20, buffer, GetParam().endianness);
EXPECT_FALSE(writer.WriteInsecureRandomBytes(&random, 30));
EXPECT_TRUE(writer.WriteInsecureRandomBytes(&random, 20));
quiche::test::CompareCharArraysWithHexError("random", buffer, 20, expected,
20);
}
TEST_P(QuicDataWriterTest, PeekVarInt62Length) {
char buffer[20];
QuicDataWriter writer(20, buffer, quiche::NETWORK_BYTE_ORDER);
EXPECT_TRUE(writer.WriteVarInt62(50));
QuicDataReader reader(buffer, 20, quiche::NETWORK_BYTE_ORDER);
EXPECT_EQ(1, reader.PeekVarInt62Length());
char buffer2[20];
QuicDataWriter writer2(20, buffer2, quiche::NETWORK_BYTE_ORDER);
EXPECT_TRUE(writer2.WriteVarInt62(100));
QuicDataReader reader2(buffer2, 20, quiche::NETWORK_BYTE_ORDER);
EXPECT_EQ(2, reader2.PeekVarInt62Length());
char buffer3[20];
QuicDataWriter writer3(20, buffer3, quiche::NETWORK_BYTE_ORDER);
EXPECT_TRUE(writer3.WriteVarInt62(20000));
QuicDataReader reader3(buffer3, 20, quiche::NETWORK_BYTE_ORDER);
EXPECT_EQ(4, reader3.PeekVarInt62Length());
char buffer4[20];
QuicDataWriter writer4(20, buffer4, quiche::NETWORK_BYTE_ORDER);
EXPECT_TRUE(writer4.WriteVarInt62(2000000000));
QuicDataReader reader4(buffer4, 20, quiche::NETWORK_BYTE_ORDER);
EXPECT_EQ(8, reader4.PeekVarInt62Length());
}
TEST_P(QuicDataWriterTest, ValidStreamCount) {
char buffer[1024];
memset(buffer, 0, sizeof(buffer));
QuicDataWriter writer(sizeof(buffer), static_cast<char*>(buffer),
quiche::Endianness::NETWORK_BYTE_ORDER);
QuicDataReader reader(buffer, sizeof(buffer));
const QuicStreamCount write_stream_count = 0xffeeddcc;
EXPECT_TRUE(writer.WriteVarInt62(write_stream_count));
QuicStreamCount read_stream_count;
uint64_t temp;
EXPECT_TRUE(reader.ReadVarInt62(&temp));
read_stream_count = static_cast<QuicStreamId>(temp);
EXPECT_EQ(write_stream_count, read_stream_count);
}
TEST_P(QuicDataWriterTest, Seek) {
char buffer[3] = {};
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer, GetParam().endianness);
EXPECT_TRUE(writer.WriteUInt8(42));
EXPECT_TRUE(writer.Seek(1));
EXPECT_TRUE(writer.WriteUInt8(3));
char expected[] = {42, 0, 3};
for (size_t i = 0; i < ABSL_ARRAYSIZE(expected); ++i) {
EXPECT_EQ(buffer[i], expected[i]);
}
}
TEST_P(QuicDataWriterTest, SeekTooFarFails) {
char buffer[20];
{
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer,
GetParam().endianness);
EXPECT_TRUE(writer.Seek(20));
EXPECT_FALSE(writer.Seek(1));
}
{
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer,
GetParam().endianness);
EXPECT_FALSE(writer.Seek(100));
}
{
QuicDataWriter writer(ABSL_ARRAYSIZE(buffer), buffer,
GetParam().endianness);
EXPECT_TRUE(writer.Seek(10));
EXPECT_FALSE(writer.Seek(std::numeric_limits<size_t>::max()));
}
}
TEST_P(QuicDataWriterTest, PayloadReads) {
char buffer[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
char expected_first_read[4] = {1, 2, 3, 4};
char expected_remaining[12] = {5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
QuicDataReader reader(buffer, sizeof(buffer));
char first_read_buffer[4] = {};
EXPECT_TRUE(reader.ReadBytes(first_read_buffer, sizeof(first_read_buffer)));
quiche::test::CompareCharArraysWithHexError(
"first read", first_read_buffer, sizeof(first_read_buffer),
expected_first_read, sizeof(expected_first_read));
absl::string_view peeked_remaining_payload = reader.PeekRemainingPayload();
quiche::test::CompareCharArraysWithHexError(
"peeked_remaining_payload", peeked_remaining_payload.data(),
peeked_remaining_payload.length(), expected_remaining,
sizeof(expected_remaining));
absl::string_view full_payload = reader.FullPayload();
quiche::test::CompareCharArraysWithHexError(
"full_payload", full_payload.data(), full_payload.length(), buffer,
sizeof(buffer));
absl::string_view read_remaining_payload = reader.ReadRemainingPayload();
quiche::test::CompareCharArraysWithHexError(
"read_remaining_payload", read_remaining_payload.data(),
read_remaining_payload.length(), expected_remaining,
sizeof(expected_remaining));
EXPECT_TRUE(reader.IsDoneReading());
absl::string_view full_payload2 = reader.FullPayload();
quiche::test::CompareCharArraysWithHexError(
"full_payload2", full_payload2.data(), full_payload2.length(), buffer,
sizeof(buffer));
}
TEST_P(QuicDataWriterTest, StringPieceVarInt62) {
char inner_buffer[16] = {1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16};
absl::string_view inner_payload_write(inner_buffer, sizeof(inner_buffer));
char buffer[sizeof(inner_buffer) + sizeof(uint8_t)] = {};
QuicDataWriter writer(sizeof(buffer), buffer);
EXPECT_TRUE(writer.WriteStringPieceVarInt62(inner_payload_write));
EXPECT_EQ(0u, writer.remaining());
QuicDataReader reader(buffer, sizeof(buffer));
absl::string_view inner_payload_read;
EXPECT_TRUE(reader.ReadStringPieceVarInt62(&inner_payload_read));
quiche::test::CompareCharArraysWithHexError(
"inner_payload", inner_payload_write.data(), inner_payload_write.length(),
inner_payload_read.data(), inner_payload_read.length());
}
}
}
} |
232 | cpp | google/quiche | quic_idle_network_detector | quiche/quic/core/quic_idle_network_detector.cc | quiche/quic/core/quic_idle_network_detector_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_IDLE_NETWORK_DETECTOR_H_
#define QUICHE_QUIC_CORE_QUIC_IDLE_NETWORK_DETECTOR_H_
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
namespace test {
class QuicConnectionPeer;
class QuicIdleNetworkDetectorTestPeer;
}
class QUICHE_EXPORT QuicIdleNetworkDetector {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() {}
virtual void OnHandshakeTimeout() = 0;
virtual void OnIdleNetworkDetected() = 0;
};
QuicIdleNetworkDetector(Delegate* delegate, QuicTime now, QuicAlarm* alarm);
void OnAlarm();
void SetTimeouts(QuicTime::Delta handshake_timeout,
QuicTime::Delta idle_network_timeout);
void StopDetection();
void OnPacketSent(QuicTime now, QuicTime::Delta pto_delay);
void OnPacketReceived(QuicTime now);
void enable_shorter_idle_timeout_on_sent_packet() {
shorter_idle_timeout_on_sent_packet_ = true;
}
QuicTime::Delta handshake_timeout() const { return handshake_timeout_; }
QuicTime time_of_last_received_packet() const {
return time_of_last_received_packet_;
}
QuicTime last_network_activity_time() const {
return std::max(time_of_last_received_packet_,
time_of_first_packet_sent_after_receiving_);
}
QuicTime::Delta idle_network_timeout() const { return idle_network_timeout_; }
QuicTime GetIdleNetworkDeadline() const;
private:
friend class test::QuicConnectionPeer;
friend class test::QuicIdleNetworkDetectorTestPeer;
void SetAlarm();
void MaybeSetAlarmOnSentPacket(QuicTime::Delta pto_delay);
QuicTime GetBandwidthUpdateDeadline() const;
Delegate* delegate_;
const QuicTime start_time_;
QuicTime::Delta handshake_timeout_;
QuicTime time_of_last_received_packet_;
QuicTime time_of_first_packet_sent_after_receiving_;
QuicTime::Delta idle_network_timeout_;
QuicAlarm& alarm_;
bool shorter_idle_timeout_on_sent_packet_ = false;
bool stopped_ = false;
};
}
#endif
#include "quiche/quic/core/quic_idle_network_detector.h"
#include <algorithm>
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
namespace {
}
QuicIdleNetworkDetector::QuicIdleNetworkDetector(Delegate* delegate,
QuicTime now, QuicAlarm* alarm)
: delegate_(delegate),
start_time_(now),
handshake_timeout_(QuicTime::Delta::Infinite()),
time_of_last_received_packet_(now),
time_of_first_packet_sent_after_receiving_(QuicTime::Zero()),
idle_network_timeout_(QuicTime::Delta::Infinite()),
alarm_(*alarm) {}
void QuicIdleNetworkDetector::OnAlarm() {
if (handshake_timeout_.IsInfinite()) {
delegate_->OnIdleNetworkDetected();
return;
}
if (idle_network_timeout_.IsInfinite()) {
delegate_->OnHandshakeTimeout();
return;
}
if (last_network_activity_time() + idle_network_timeout_ >
start_time_ + handshake_timeout_) {
delegate_->OnHandshakeTimeout();
return;
}
delegate_->OnIdleNetworkDetected();
}
void QuicIdleNetworkDetector::SetTimeouts(
QuicTime::Delta handshake_timeout, QuicTime::Delta idle_network_timeout) {
handshake_timeout_ = handshake_timeout;
idle_network_timeout_ = idle_network_timeout;
SetAlarm();
}
void QuicIdleNetworkDetector::StopDetection() {
alarm_.PermanentCancel();
handshake_timeout_ = QuicTime::Delta::Infinite();
idle_network_timeout_ = QuicTime::Delta::Infinite();
handshake_timeout_ = QuicTime::Delta::Infinite();
stopped_ = true;
}
void QuicIdleNetworkDetector::OnPacketSent(QuicTime now,
QuicTime::Delta pto_delay) {
if (time_of_first_packet_sent_after_receiving_ >
time_of_last_received_packet_) {
return;
}
time_of_first_packet_sent_after_receiving_ =
std::max(time_of_first_packet_sent_after_receiving_, now);
if (shorter_idle_timeout_on_sent_packet_) {
MaybeSetAlarmOnSentPacket(pto_delay);
return;
}
SetAlarm();
}
void QuicIdleNetworkDetector::OnPacketReceived(QuicTime now) {
time_of_last_received_packet_ = std::max(time_of_last_received_packet_, now);
SetAlarm();
}
void QuicIdleNetworkDetector::SetAlarm() {
if (stopped_) {
QUIC_BUG(quic_idle_detector_set_alarm_after_stopped)
<< "SetAlarm called after stopped";
return;
}
QuicTime new_deadline = QuicTime::Zero();
if (!handshake_timeout_.IsInfinite()) {
new_deadline = start_time_ + handshake_timeout_;
}
if (!idle_network_timeout_.IsInfinite()) {
const QuicTime idle_network_deadline = GetIdleNetworkDeadline();
if (new_deadline.IsInitialized()) {
new_deadline = std::min(new_deadline, idle_network_deadline);
} else {
new_deadline = idle_network_deadline;
}
}
alarm_.Update(new_deadline, kAlarmGranularity);
}
void QuicIdleNetworkDetector::MaybeSetAlarmOnSentPacket(
QuicTime::Delta pto_delay) {
QUICHE_DCHECK(shorter_idle_timeout_on_sent_packet_);
if (!handshake_timeout_.IsInfinite() || !alarm_.IsSet()) {
SetAlarm();
return;
}
const QuicTime deadline = alarm_.deadline();
const QuicTime min_deadline = last_network_activity_time() + pto_delay;
if (deadline > min_deadline) {
return;
}
alarm_.Update(min_deadline, kAlarmGranularity);
}
QuicTime QuicIdleNetworkDetector::GetIdleNetworkDeadline() const {
if (idle_network_timeout_.IsInfinite()) {
return QuicTime::Zero();
}
return last_network_activity_time() + idle_network_timeout_;
}
} | #include "quiche/quic/core/quic_idle_network_detector.h"
#include "quiche/quic/core/quic_connection_alarms.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_quic_connection_alarms.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
class QuicIdleNetworkDetectorTestPeer {
public:
static QuicAlarm& GetAlarm(QuicIdleNetworkDetector* detector) {
return detector->alarm_;
}
};
namespace {
class MockDelegate : public QuicIdleNetworkDetector::Delegate {
public:
MOCK_METHOD(void, OnHandshakeTimeout, (), (override));
MOCK_METHOD(void, OnIdleNetworkDetected, (), (override));
};
class QuicIdleNetworkDetectorTest : public QuicTest {
public:
QuicIdleNetworkDetectorTest()
: alarms_(&connection_alarms_delegate_, alarm_factory_, arena_),
detector_(&delegate_, clock_.Now() + QuicTimeDelta::FromSeconds(1),
&alarms_.idle_network_detector_alarm()) {
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
alarm_ = static_cast<MockAlarmFactory::TestAlarm*>(
&alarms_.idle_network_detector_alarm());
ON_CALL(connection_alarms_delegate_, OnIdleDetectorAlarm())
.WillByDefault([&] { detector_.OnAlarm(); });
}
protected:
testing::StrictMock<MockDelegate> delegate_;
MockConnectionAlarmsDelegate connection_alarms_delegate_;
QuicConnectionArena arena_;
MockAlarmFactory alarm_factory_;
QuicConnectionAlarms alarms_;
MockClock clock_;
QuicIdleNetworkDetector detector_;
MockAlarmFactory::TestAlarm* alarm_;
};
TEST_F(QuicIdleNetworkDetectorTest,
IdleNetworkDetectedBeforeHandshakeCompletes) {
EXPECT_FALSE(alarm_->IsSet());
detector_.SetTimeouts(
QuicTime::Delta::FromSeconds(30),
QuicTime::Delta::FromSeconds(20));
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(20),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(20));
EXPECT_CALL(delegate_, OnIdleNetworkDetected());
alarm_->Fire();
}
TEST_F(QuicIdleNetworkDetectorTest, HandshakeTimeout) {
EXPECT_FALSE(alarm_->IsSet());
detector_.SetTimeouts(
QuicTime::Delta::FromSeconds(30),
QuicTime::Delta::FromSeconds(20));
EXPECT_TRUE(alarm_->IsSet());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(15));
detector_.OnPacketReceived(clock_.Now());
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(15),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(15));
EXPECT_CALL(delegate_, OnHandshakeTimeout());
alarm_->Fire();
}
TEST_F(QuicIdleNetworkDetectorTest,
IdleNetworkDetectedAfterHandshakeCompletes) {
EXPECT_FALSE(alarm_->IsSet());
detector_.SetTimeouts(
QuicTime::Delta::FromSeconds(30),
QuicTime::Delta::FromSeconds(20));
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(20),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(200));
detector_.OnPacketReceived(clock_.Now());
detector_.SetTimeouts(
QuicTime::Delta::Infinite(),
QuicTime::Delta::FromSeconds(600));
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(600),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(600));
EXPECT_CALL(delegate_, OnIdleNetworkDetected());
alarm_->Fire();
}
TEST_F(QuicIdleNetworkDetectorTest,
DoNotExtendIdleDeadlineOnConsecutiveSentPackets) {
EXPECT_FALSE(alarm_->IsSet());
detector_.SetTimeouts(
QuicTime::Delta::FromSeconds(30),
QuicTime::Delta::FromSeconds(20));
EXPECT_TRUE(alarm_->IsSet());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(200));
detector_.OnPacketReceived(clock_.Now());
detector_.SetTimeouts(
QuicTime::Delta::Infinite(),
QuicTime::Delta::FromSeconds(600));
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(600),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(200));
detector_.OnPacketSent(clock_.Now(), QuicTime::Delta::Zero());
const QuicTime packet_sent_time = clock_.Now();
EXPECT_EQ(packet_sent_time + QuicTime::Delta::FromSeconds(600),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(200));
detector_.OnPacketSent(clock_.Now(), QuicTime::Delta::Zero());
EXPECT_EQ(packet_sent_time + QuicTime::Delta::FromSeconds(600),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(600) -
QuicTime::Delta::FromMilliseconds(200));
EXPECT_CALL(delegate_, OnIdleNetworkDetected());
alarm_->Fire();
}
TEST_F(QuicIdleNetworkDetectorTest, ShorterIdleTimeoutOnSentPacket) {
detector_.enable_shorter_idle_timeout_on_sent_packet();
QuicTime::Delta idle_network_timeout = QuicTime::Delta::Zero();
idle_network_timeout = QuicTime::Delta::FromSeconds(30);
detector_.SetTimeouts(
QuicTime::Delta::Infinite(), idle_network_timeout);
EXPECT_TRUE(alarm_->IsSet());
const QuicTime deadline = alarm_->deadline();
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(30), deadline);
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(15));
detector_.OnPacketSent(clock_.Now(), QuicTime::Delta::FromSeconds(2));
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(deadline, alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(14));
detector_.OnPacketSent(clock_.Now(), QuicTime::Delta::FromSeconds(2));
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(deadline, alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
detector_.OnPacketReceived(clock_.Now());
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(30),
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(29));
detector_.OnPacketSent(clock_.Now(), QuicTime::Delta::FromSeconds(2));
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(clock_.Now() + QuicTime::Delta::FromSeconds(2), alarm_->deadline());
}
TEST_F(QuicIdleNetworkDetectorTest, NoAlarmAfterStopped) {
detector_.StopDetection();
EXPECT_QUIC_BUG(
detector_.SetTimeouts(
QuicTime::Delta::FromSeconds(30),
QuicTime::Delta::FromSeconds(20)),
"SetAlarm called after stopped");
EXPECT_FALSE(alarm_->IsSet());
}
}
}
} |
233 | cpp | google/quiche | quic_sustained_bandwidth_recorder | quiche/quic/core/quic_sustained_bandwidth_recorder.cc | quiche/quic/core/quic_sustained_bandwidth_recorder_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
#define QUICHE_QUIC_CORE_QUIC_SUSTAINED_BANDWIDTH_RECORDER_H_
#include <cstdint>
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace test {
class QuicSustainedBandwidthRecorderPeer;
}
class QUICHE_EXPORT QuicSustainedBandwidthRecorder {
public:
QuicSustainedBandwidthRecorder();
QuicSustainedBandwidthRecorder(const QuicSustainedBandwidthRecorder&) =
delete;
QuicSustainedBandwidthRecorder& operator=(
const QuicSustainedBandwidthRecorder&) = delete;
void RecordEstimate(bool in_recovery, bool in_slow_start,
QuicBandwidth bandwidth, QuicTime estimate_time,
QuicWallTime wall_time, QuicTime::Delta srtt);
bool HasEstimate() const { return has_estimate_; }
QuicBandwidth BandwidthEstimate() const {
QUICHE_DCHECK(has_estimate_);
return bandwidth_estimate_;
}
QuicBandwidth MaxBandwidthEstimate() const {
QUICHE_DCHECK(has_estimate_);
return max_bandwidth_estimate_;
}
int64_t MaxBandwidthTimestamp() const {
QUICHE_DCHECK(has_estimate_);
return max_bandwidth_timestamp_;
}
bool EstimateRecordedDuringSlowStart() const {
QUICHE_DCHECK(has_estimate_);
return bandwidth_estimate_recorded_during_slow_start_;
}
private:
friend class test::QuicSustainedBandwidthRecorderPeer;
bool has_estimate_;
bool is_recording_;
bool bandwidth_estimate_recorded_during_slow_start_;
QuicBandwidth bandwidth_estimate_;
QuicBandwidth max_bandwidth_estimate_;
int64_t max_bandwidth_timestamp_;
QuicTime start_time_;
};
}
#endif
#include "quiche/quic/core/quic_sustained_bandwidth_recorder.h"
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
QuicSustainedBandwidthRecorder::QuicSustainedBandwidthRecorder()
: has_estimate_(false),
is_recording_(false),
bandwidth_estimate_recorded_during_slow_start_(false),
bandwidth_estimate_(QuicBandwidth::Zero()),
max_bandwidth_estimate_(QuicBandwidth::Zero()),
max_bandwidth_timestamp_(0),
start_time_(QuicTime::Zero()) {}
void QuicSustainedBandwidthRecorder::RecordEstimate(
bool in_recovery, bool in_slow_start, QuicBandwidth bandwidth,
QuicTime estimate_time, QuicWallTime wall_time, QuicTime::Delta srtt) {
if (in_recovery) {
is_recording_ = false;
QUIC_DVLOG(1) << "Stopped recording at: "
<< estimate_time.ToDebuggingValue();
return;
}
if (!is_recording_) {
start_time_ = estimate_time;
is_recording_ = true;
QUIC_DVLOG(1) << "Started recording at: " << start_time_.ToDebuggingValue();
return;
}
if (estimate_time - start_time_ >= 3 * srtt) {
has_estimate_ = true;
bandwidth_estimate_recorded_during_slow_start_ = in_slow_start;
bandwidth_estimate_ = bandwidth;
QUIC_DVLOG(1) << "New sustained bandwidth estimate (KBytes/s): "
<< bandwidth_estimate_.ToKBytesPerSecond();
}
if (bandwidth > max_bandwidth_estimate_) {
max_bandwidth_estimate_ = bandwidth;
max_bandwidth_timestamp_ = wall_time.ToUNIXSeconds();
QUIC_DVLOG(1) << "New max bandwidth estimate (KBytes/s): "
<< max_bandwidth_estimate_.ToKBytesPerSecond();
}
}
} | #include "quiche/quic/core/quic_sustained_bandwidth_recorder.h"
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
class QuicSustainedBandwidthRecorderTest : public QuicTest {};
TEST_F(QuicSustainedBandwidthRecorderTest, BandwidthEstimates) {
QuicSustainedBandwidthRecorder recorder;
EXPECT_FALSE(recorder.HasEstimate());
QuicTime estimate_time = QuicTime::Zero();
QuicWallTime wall_time = QuicWallTime::Zero();
QuicTime::Delta srtt = QuicTime::Delta::FromMilliseconds(150);
const int kBandwidthBitsPerSecond = 12345678;
QuicBandwidth bandwidth =
QuicBandwidth::FromBitsPerSecond(kBandwidthBitsPerSecond);
bool in_recovery = false;
bool in_slow_start = false;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_FALSE(recorder.HasEstimate());
estimate_time = estimate_time + srtt;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_FALSE(recorder.HasEstimate());
estimate_time = estimate_time + srtt;
estimate_time = estimate_time + srtt;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_TRUE(recorder.HasEstimate());
EXPECT_EQ(recorder.BandwidthEstimate(), bandwidth);
EXPECT_EQ(recorder.BandwidthEstimate(), recorder.MaxBandwidthEstimate());
QuicBandwidth second_bandwidth =
QuicBandwidth::FromBitsPerSecond(2 * kBandwidthBitsPerSecond);
in_recovery = true;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
in_recovery = false;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_EQ(recorder.BandwidthEstimate(), bandwidth);
estimate_time = estimate_time + 3 * srtt;
const int64_t kSeconds = 556677;
QuicWallTime second_bandwidth_wall_time =
QuicWallTime::FromUNIXSeconds(kSeconds);
recorder.RecordEstimate(in_recovery, in_slow_start, second_bandwidth,
estimate_time, second_bandwidth_wall_time, srtt);
EXPECT_EQ(recorder.BandwidthEstimate(), second_bandwidth);
EXPECT_EQ(recorder.BandwidthEstimate(), recorder.MaxBandwidthEstimate());
EXPECT_EQ(recorder.MaxBandwidthTimestamp(), kSeconds);
QuicBandwidth third_bandwidth =
QuicBandwidth::FromBitsPerSecond(0.5 * kBandwidthBitsPerSecond);
recorder.RecordEstimate(in_recovery, in_slow_start, third_bandwidth,
estimate_time, wall_time, srtt);
recorder.RecordEstimate(in_recovery, in_slow_start, third_bandwidth,
estimate_time, wall_time, srtt);
EXPECT_EQ(recorder.BandwidthEstimate(), third_bandwidth);
estimate_time = estimate_time + 3 * srtt;
recorder.RecordEstimate(in_recovery, in_slow_start, third_bandwidth,
estimate_time, wall_time, srtt);
EXPECT_EQ(recorder.BandwidthEstimate(), third_bandwidth);
EXPECT_LT(third_bandwidth, second_bandwidth);
EXPECT_EQ(recorder.MaxBandwidthEstimate(), second_bandwidth);
EXPECT_EQ(recorder.MaxBandwidthTimestamp(), kSeconds);
}
TEST_F(QuicSustainedBandwidthRecorderTest, SlowStart) {
QuicSustainedBandwidthRecorder recorder;
EXPECT_FALSE(recorder.HasEstimate());
QuicTime estimate_time = QuicTime::Zero();
QuicWallTime wall_time = QuicWallTime::Zero();
QuicTime::Delta srtt = QuicTime::Delta::FromMilliseconds(150);
const int kBandwidthBitsPerSecond = 12345678;
QuicBandwidth bandwidth =
QuicBandwidth::FromBitsPerSecond(kBandwidthBitsPerSecond);
bool in_recovery = false;
bool in_slow_start = true;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
estimate_time = estimate_time + 3 * srtt;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_TRUE(recorder.HasEstimate());
EXPECT_TRUE(recorder.EstimateRecordedDuringSlowStart());
estimate_time = estimate_time + 3 * srtt;
in_slow_start = false;
recorder.RecordEstimate(in_recovery, in_slow_start, bandwidth, estimate_time,
wall_time, srtt);
EXPECT_TRUE(recorder.HasEstimate());
EXPECT_FALSE(recorder.EstimateRecordedDuringSlowStart());
}
}
}
} |
234 | cpp | google/quiche | quic_alarm | quiche/quic/core/quic_alarm.cc | quiche/quic/core/quic_alarm_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_ALARM_H_
#define QUICHE_QUIC_CORE_QUIC_ALARM_H_
#include "quiche/quic/core/quic_arena_scoped_ptr.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QuicAlarm {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() {}
virtual QuicConnectionContext* GetConnectionContext() = 0;
virtual void OnAlarm() = 0;
};
class QUICHE_EXPORT DelegateWithContext : public Delegate {
public:
explicit DelegateWithContext(QuicConnectionContext* context)
: context_(context) {}
~DelegateWithContext() override {}
QuicConnectionContext* GetConnectionContext() override { return context_; }
private:
QuicConnectionContext* context_;
};
class QUICHE_EXPORT DelegateWithoutContext : public Delegate {
public:
~DelegateWithoutContext() override {}
QuicConnectionContext* GetConnectionContext() override { return nullptr; }
};
explicit QuicAlarm(QuicArenaScopedPtr<Delegate> delegate);
QuicAlarm(const QuicAlarm&) = delete;
QuicAlarm& operator=(const QuicAlarm&) = delete;
virtual ~QuicAlarm();
void Set(QuicTime new_deadline);
void PermanentCancel() { CancelInternal(true); }
void Cancel() { CancelInternal(false); }
bool IsPermanentlyCancelled() const;
void Update(QuicTime new_deadline, QuicTime::Delta granularity);
bool IsSet() const;
QuicTime deadline() const { return deadline_; }
protected:
virtual void SetImpl() = 0;
virtual void CancelImpl() = 0;
virtual void UpdateImpl();
void Fire();
private:
void CancelInternal(bool permanent);
QuicArenaScopedPtr<Delegate> delegate_;
QuicTime deadline_;
};
}
#endif
#include "quiche/quic/core/quic_alarm.h"
#include <atomic>
#include <cstdlib>
#include <utility>
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_stack_trace.h"
namespace quic {
QuicAlarm::QuicAlarm(QuicArenaScopedPtr<Delegate> delegate)
: delegate_(std::move(delegate)), deadline_(QuicTime::Zero()) {}
QuicAlarm::~QuicAlarm() {
if (IsSet()) {
QUIC_CODE_COUNT(quic_alarm_not_cancelled_in_dtor);
}
}
void QuicAlarm::Set(QuicTime new_deadline) {
QUICHE_DCHECK(!IsSet());
QUICHE_DCHECK(new_deadline.IsInitialized());
if (IsPermanentlyCancelled()) {
QUIC_BUG(quic_alarm_illegal_set)
<< "Set called after alarm is permanently cancelled. new_deadline:"
<< new_deadline;
return;
}
deadline_ = new_deadline;
SetImpl();
}
void QuicAlarm::CancelInternal(bool permanent) {
if (IsSet()) {
deadline_ = QuicTime::Zero();
CancelImpl();
}
if (permanent) {
delegate_.reset();
}
}
bool QuicAlarm::IsPermanentlyCancelled() const { return delegate_ == nullptr; }
void QuicAlarm::Update(QuicTime new_deadline, QuicTime::Delta granularity) {
if (IsPermanentlyCancelled()) {
QUIC_BUG(quic_alarm_illegal_update)
<< "Update called after alarm is permanently cancelled. new_deadline:"
<< new_deadline << ", granularity:" << granularity;
return;
}
if (!new_deadline.IsInitialized()) {
Cancel();
return;
}
if (std::abs((new_deadline - deadline_).ToMicroseconds()) <
granularity.ToMicroseconds()) {
return;
}
const bool was_set = IsSet();
deadline_ = new_deadline;
if (was_set) {
UpdateImpl();
} else {
SetImpl();
}
}
bool QuicAlarm::IsSet() const { return deadline_.IsInitialized(); }
void QuicAlarm::Fire() {
if (!IsSet()) {
return;
}
deadline_ = QuicTime::Zero();
if (!IsPermanentlyCancelled()) {
QuicConnectionContextSwitcher context_switcher(
delegate_->GetConnectionContext());
delegate_->OnAlarm();
}
}
void QuicAlarm::UpdateImpl() {
const QuicTime new_deadline = deadline_;
deadline_ = QuicTime::Zero();
CancelImpl();
deadline_ = new_deadline;
SetImpl();
}
} | #include "quiche/quic/core/quic_alarm.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_test.h"
using testing::ElementsAre;
using testing::Invoke;
using testing::Return;
namespace quic {
namespace test {
namespace {
class TraceCollector : public QuicConnectionTracer {
public:
~TraceCollector() override = default;
void PrintLiteral(const char* literal) override { trace_.push_back(literal); }
void PrintString(absl::string_view s) override {
trace_.push_back(std::string(s));
}
const std::vector<std::string>& trace() const { return trace_; }
private:
std::vector<std::string> trace_;
};
class MockDelegate : public QuicAlarm::Delegate {
public:
MOCK_METHOD(QuicConnectionContext*, GetConnectionContext, (), (override));
MOCK_METHOD(void, OnAlarm, (), (override));
};
class DestructiveDelegate : public QuicAlarm::DelegateWithoutContext {
public:
DestructiveDelegate() : alarm_(nullptr) {}
void set_alarm(QuicAlarm* alarm) { alarm_ = alarm; }
void OnAlarm() override {
QUICHE_DCHECK(alarm_);
delete alarm_;
}
private:
QuicAlarm* alarm_;
};
class TestAlarm : public QuicAlarm {
public:
explicit TestAlarm(QuicAlarm::Delegate* delegate)
: QuicAlarm(QuicArenaScopedPtr<QuicAlarm::Delegate>(delegate)) {}
bool scheduled() const { return scheduled_; }
void FireAlarm() {
scheduled_ = false;
Fire();
}
protected:
void SetImpl() override {
QUICHE_DCHECK(deadline().IsInitialized());
scheduled_ = true;
}
void CancelImpl() override {
QUICHE_DCHECK(!deadline().IsInitialized());
scheduled_ = false;
}
private:
bool scheduled_;
};
class DestructiveAlarm : public QuicAlarm {
public:
explicit DestructiveAlarm(DestructiveDelegate* delegate)
: QuicAlarm(QuicArenaScopedPtr<DestructiveDelegate>(delegate)) {}
void FireAlarm() { Fire(); }
protected:
void SetImpl() override {}
void CancelImpl() override {}
};
class QuicAlarmTest : public QuicTest {
public:
QuicAlarmTest()
: delegate_(new MockDelegate()),
alarm_(delegate_),
deadline_(QuicTime::Zero() + QuicTime::Delta::FromSeconds(7)),
deadline2_(QuicTime::Zero() + QuicTime::Delta::FromSeconds(14)),
new_deadline_(QuicTime::Zero()) {}
void ResetAlarm() { alarm_.Set(new_deadline_); }
MockDelegate* delegate_;
TestAlarm alarm_;
QuicTime deadline_;
QuicTime deadline2_;
QuicTime new_deadline_;
};
TEST_F(QuicAlarmTest, IsSet) { EXPECT_FALSE(alarm_.IsSet()); }
TEST_F(QuicAlarmTest, Set) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
EXPECT_TRUE(alarm_.IsSet());
EXPECT_TRUE(alarm_.scheduled());
EXPECT_EQ(deadline, alarm_.deadline());
}
TEST_F(QuicAlarmTest, Cancel) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
alarm_.Cancel();
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
}
TEST_F(QuicAlarmTest, PermanentCancel) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
alarm_.PermanentCancel();
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
EXPECT_QUIC_BUG(alarm_.Set(deadline),
"Set called after alarm is permanently cancelled");
EXPECT_TRUE(alarm_.IsPermanentlyCancelled());
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
EXPECT_QUIC_BUG(alarm_.Update(deadline, QuicTime::Delta::Zero()),
"Update called after alarm is permanently cancelled");
EXPECT_TRUE(alarm_.IsPermanentlyCancelled());
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
}
TEST_F(QuicAlarmTest, Update) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
QuicTime new_deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(8);
alarm_.Update(new_deadline, QuicTime::Delta::Zero());
EXPECT_TRUE(alarm_.IsSet());
EXPECT_TRUE(alarm_.scheduled());
EXPECT_EQ(new_deadline, alarm_.deadline());
}
TEST_F(QuicAlarmTest, UpdateWithZero) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
alarm_.Update(QuicTime::Zero(), QuicTime::Delta::Zero());
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
}
TEST_F(QuicAlarmTest, Fire) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
EXPECT_CALL(*delegate_, OnAlarm());
alarm_.FireAlarm();
EXPECT_FALSE(alarm_.IsSet());
EXPECT_FALSE(alarm_.scheduled());
EXPECT_EQ(QuicTime::Zero(), alarm_.deadline());
}
TEST_F(QuicAlarmTest, FireAndResetViaSet) {
alarm_.Set(deadline_);
new_deadline_ = deadline2_;
EXPECT_CALL(*delegate_, OnAlarm())
.WillOnce(Invoke(this, &QuicAlarmTest::ResetAlarm));
alarm_.FireAlarm();
EXPECT_TRUE(alarm_.IsSet());
EXPECT_TRUE(alarm_.scheduled());
EXPECT_EQ(deadline2_, alarm_.deadline());
}
TEST_F(QuicAlarmTest, FireDestroysAlarm) {
DestructiveDelegate* delegate(new DestructiveDelegate);
DestructiveAlarm* alarm = new DestructiveAlarm(delegate);
delegate->set_alarm(alarm);
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm->Set(deadline);
alarm->FireAlarm();
}
TEST_F(QuicAlarmTest, NullAlarmContext) {
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
EXPECT_CALL(*delegate_, GetConnectionContext()).WillOnce(Return(nullptr));
EXPECT_CALL(*delegate_, OnAlarm()).WillOnce(Invoke([] {
QUIC_TRACELITERAL("Alarm fired.");
}));
alarm_.FireAlarm();
}
TEST_F(QuicAlarmTest, AlarmContextWithNullTracer) {
QuicConnectionContext context;
ASSERT_EQ(context.tracer, nullptr);
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
EXPECT_CALL(*delegate_, GetConnectionContext()).WillOnce(Return(&context));
EXPECT_CALL(*delegate_, OnAlarm()).WillOnce(Invoke([] {
QUIC_TRACELITERAL("Alarm fired.");
}));
alarm_.FireAlarm();
}
TEST_F(QuicAlarmTest, AlarmContextWithTracer) {
QuicConnectionContext context;
std::unique_ptr<TraceCollector> tracer = std::make_unique<TraceCollector>();
const TraceCollector& tracer_ref = *tracer;
context.tracer = std::move(tracer);
QuicTime deadline = QuicTime::Zero() + QuicTime::Delta::FromSeconds(7);
alarm_.Set(deadline);
EXPECT_CALL(*delegate_, GetConnectionContext()).WillOnce(Return(&context));
EXPECT_CALL(*delegate_, OnAlarm()).WillOnce(Invoke([] {
QUIC_TRACELITERAL("Alarm fired.");
}));
QUIC_TRACELITERAL("Should not be collected before alarm.");
alarm_.FireAlarm();
QUIC_TRACELITERAL("Should not be collected after alarm.");
EXPECT_THAT(tracer_ref.trace(), ElementsAre("Alarm fired."));
}
}
}
} |
235 | cpp | google/quiche | chlo_extractor | quiche/quic/core/chlo_extractor.cc | quiche/quic/core/chlo_extractor_test.cc | #ifndef QUICHE_QUIC_CORE_CHLO_EXTRACTOR_H_
#define QUICHE_QUIC_CORE_CHLO_EXTRACTOR_H_
#include "quiche/quic/core/crypto/crypto_handshake_message.h"
#include "quiche/quic/core/quic_packets.h"
namespace quic {
class QUICHE_EXPORT ChloExtractor {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() {}
virtual void OnChlo(QuicTransportVersion version,
QuicConnectionId connection_id,
const CryptoHandshakeMessage& chlo) = 0;
};
static bool Extract(const QuicEncryptedPacket& packet,
ParsedQuicVersion version,
const QuicTagVector& create_session_tag_indicators,
Delegate* delegate, uint8_t connection_id_length);
ChloExtractor(const ChloExtractor&) = delete;
ChloExtractor operator=(const ChloExtractor&) = delete;
};
}
#endif
#include "quiche/quic/core/chlo_extractor.h"
#include <memory>
#include <optional>
#include "absl/strings/match.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_framer.h"
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/crypto_handshake_message.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
namespace quic {
namespace {
class ChloFramerVisitor : public QuicFramerVisitorInterface,
public CryptoFramerVisitorInterface {
public:
ChloFramerVisitor(QuicFramer* framer,
const QuicTagVector& create_session_tag_indicators,
ChloExtractor::Delegate* delegate);
~ChloFramerVisitor() override = default;
void OnError(QuicFramer* ) override {}
bool OnProtocolVersionMismatch(ParsedQuicVersion version) override;
void OnPacket() override {}
void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& ) override {}
void OnRetryPacket(QuicConnectionId ,
QuicConnectionId ,
absl::string_view ,
absl::string_view ,
absl::string_view ) override {}
bool OnUnauthenticatedPublicHeader(const QuicPacketHeader& header) override;
bool OnUnauthenticatedHeader(const QuicPacketHeader& header) override;
void OnDecryptedPacket(size_t ,
EncryptionLevel ) override {}
bool OnPacketHeader(const QuicPacketHeader& header) override;
void OnCoalescedPacket(const QuicEncryptedPacket& packet) override;
void OnUndecryptablePacket(const QuicEncryptedPacket& packet,
EncryptionLevel decryption_level,
bool has_decryption_key) override;
bool OnStreamFrame(const QuicStreamFrame& frame) override;
bool OnCryptoFrame(const QuicCryptoFrame& frame) override;
bool OnAckFrameStart(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time) override;
bool OnAckRange(QuicPacketNumber start, QuicPacketNumber end) override;
bool OnAckTimestamp(QuicPacketNumber packet_number,
QuicTime timestamp) override;
bool OnAckFrameEnd(QuicPacketNumber start,
const std::optional<QuicEcnCounts>& ecn_counts) override;
bool OnStopWaitingFrame(const QuicStopWaitingFrame& frame) override;
bool OnPingFrame(const QuicPingFrame& frame) override;
bool OnRstStreamFrame(const QuicRstStreamFrame& frame) override;
bool OnConnectionCloseFrame(const QuicConnectionCloseFrame& frame) override;
bool OnNewConnectionIdFrame(const QuicNewConnectionIdFrame& frame) override;
bool OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame) override;
bool OnNewTokenFrame(const QuicNewTokenFrame& frame) override;
bool OnStopSendingFrame(const QuicStopSendingFrame& frame) override;
bool OnPathChallengeFrame(const QuicPathChallengeFrame& frame) override;
bool OnPathResponseFrame(const QuicPathResponseFrame& frame) override;
bool OnGoAwayFrame(const QuicGoAwayFrame& frame) override;
bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) override;
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) override;
bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override;
bool OnBlockedFrame(const QuicBlockedFrame& frame) override;
bool OnPaddingFrame(const QuicPaddingFrame& frame) override;
bool OnMessageFrame(const QuicMessageFrame& frame) override;
bool OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& frame) override;
bool OnAckFrequencyFrame(const QuicAckFrequencyFrame& farme) override;
bool OnResetStreamAtFrame(const QuicResetStreamAtFrame& frame) override;
void OnPacketComplete() override {}
bool IsValidStatelessResetToken(
const StatelessResetToken& token) const override;
void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& ) override {}
void OnKeyUpdate(KeyUpdateReason ) override;
void OnDecryptedFirstPacketInKeyPhase() override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
void OnError(CryptoFramer* framer) override;
void OnHandshakeMessage(const CryptoHandshakeMessage& message) override;
bool OnHandshakeData(absl::string_view data);
bool found_chlo() { return found_chlo_; }
bool chlo_contains_tags() { return chlo_contains_tags_; }
private:
QuicFramer* framer_;
const QuicTagVector& create_session_tag_indicators_;
ChloExtractor::Delegate* delegate_;
bool found_chlo_;
bool chlo_contains_tags_;
QuicConnectionId connection_id_;
};
ChloFramerVisitor::ChloFramerVisitor(
QuicFramer* framer, const QuicTagVector& create_session_tag_indicators,
ChloExtractor::Delegate* delegate)
: framer_(framer),
create_session_tag_indicators_(create_session_tag_indicators),
delegate_(delegate),
found_chlo_(false),
chlo_contains_tags_(false),
connection_id_(EmptyQuicConnectionId()) {}
bool ChloFramerVisitor::OnProtocolVersionMismatch(ParsedQuicVersion version) {
if (!framer_->IsSupportedVersion(version)) {
return false;
}
framer_->set_version(version);
return true;
}
bool ChloFramerVisitor::OnUnauthenticatedPublicHeader(
const QuicPacketHeader& header) {
connection_id_ = header.destination_connection_id;
framer_->SetInitialObfuscators(header.destination_connection_id);
return true;
}
bool ChloFramerVisitor::OnUnauthenticatedHeader(
const QuicPacketHeader& ) {
return true;
}
bool ChloFramerVisitor::OnPacketHeader(const QuicPacketHeader& ) {
return true;
}
void ChloFramerVisitor::OnCoalescedPacket(
const QuicEncryptedPacket& ) {}
void ChloFramerVisitor::OnUndecryptablePacket(
const QuicEncryptedPacket& , EncryptionLevel ,
bool ) {}
bool ChloFramerVisitor::OnStreamFrame(const QuicStreamFrame& frame) {
if (QuicVersionUsesCryptoFrames(framer_->transport_version())) {
return false;
}
absl::string_view data(frame.data_buffer, frame.data_length);
if (QuicUtils::IsCryptoStreamId(framer_->transport_version(),
frame.stream_id) &&
frame.offset == 0 && absl::StartsWith(data, "CHLO")) {
return OnHandshakeData(data);
}
return true;
}
bool ChloFramerVisitor::OnCryptoFrame(const QuicCryptoFrame& frame) {
if (!QuicVersionUsesCryptoFrames(framer_->transport_version())) {
return false;
}
absl::string_view data(frame.data_buffer, frame.data_length);
if (frame.offset == 0 && absl::StartsWith(data, "CHLO")) {
return OnHandshakeData(data);
}
return true;
}
bool ChloFramerVisitor::OnHandshakeData(absl::string_view data) {
CryptoFramer crypto_framer;
crypto_framer.set_visitor(this);
if (!crypto_framer.ProcessInput(data)) {
return false;
}
for (const QuicTag tag : create_session_tag_indicators_) {
if (crypto_framer.HasTag(tag)) {
chlo_contains_tags_ = true;
}
}
if (chlo_contains_tags_ && delegate_) {
crypto_framer.ForceHandshake();
}
return true;
}
bool ChloFramerVisitor::OnAckFrameStart(QuicPacketNumber ,
QuicTime::Delta ) {
return true;
}
bool ChloFramerVisitor::OnResetStreamAtFrame(
const QuicResetStreamAtFrame& ) {
return true;
}
bool ChloFramerVisitor::OnAckRange(QuicPacketNumber ,
QuicPacketNumber ) {
return true;
}
bool ChloFramerVisitor::OnAckTimestamp(QuicPacketNumber ,
QuicTime ) {
return true;
}
bool ChloFramerVisitor::OnAckFrameEnd(
QuicPacketNumber ,
const std::optional<QuicEcnCounts>& ) {
return true;
}
bool ChloFramerVisitor::OnStopWaitingFrame(
const QuicStopWaitingFrame& ) {
return true;
}
bool ChloFramerVisitor::OnPingFrame(const QuicPingFrame& ) {
return true;
}
bool ChloFramerVisitor::OnRstStreamFrame(const QuicRstStreamFrame& ) {
return true;
}
bool ChloFramerVisitor::OnConnectionCloseFrame(
const QuicConnectionCloseFrame& ) {
return true;
}
bool ChloFramerVisitor::OnStopSendingFrame(
const QuicStopSendingFrame& ) {
return true;
}
bool ChloFramerVisitor::OnPathChallengeFrame(
const QuicPathChallengeFrame& ) {
return true;
}
bool ChloFramerVisitor::OnPathResponseFrame(
const QuicPathResponseFrame& ) {
return true;
}
bool ChloFramerVisitor::OnGoAwayFrame(const QuicGoAwayFrame& ) {
return true;
}
bool ChloFramerVisitor::OnWindowUpdateFrame(
const QuicWindowUpdateFrame& ) {
return true;
}
bool ChloFramerVisitor::OnBlockedFrame(const QuicBlockedFrame& ) {
return true;
}
bool ChloFramerVisitor::OnNewConnectionIdFrame(
const QuicNewConnectionIdFrame& ) {
return true;
}
bool ChloFramerVisitor::OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& ) {
return true;
}
bool ChloFramerVisitor::OnNewTokenFrame(const QuicNewTokenFrame& ) {
return true;
}
bool ChloFramerVisitor::OnPaddingFrame(const QuicPaddingFrame& ) {
return true;
}
bool ChloFramerVisitor::OnMessageFrame(const QuicMessageFrame& ) {
return true;
}
bool ChloFramerVisitor::OnHandshakeDoneFrame(
const QuicHandshakeDoneFrame& ) {
return true;
}
bool ChloFramerVisitor::OnAckFrequencyFrame(
const QuicAckFrequencyFrame& ) {
return true;
}
bool ChloFramerVisitor::IsValidStatelessResetToken(
const StatelessResetToken& ) const {
return false;
}
bool ChloFramerVisitor::OnMaxStreamsFrame(
const QuicMaxStreamsFrame& ) {
return true;
}
bool ChloFramerVisitor::OnStreamsBlockedFrame(
const QuicStreamsBlockedFrame& ) {
return true;
}
void ChloFramerVisitor::OnKeyUpdate(KeyUpdateReason ) {}
void ChloFramerVisitor::OnDecryptedFirstPacketInKeyPhase() {}
std::unique_ptr<QuicDecrypter>
ChloFramerVisitor::AdvanceKeysAndCreateCurrentOneRttDecrypter() {
return nullptr;
}
std::unique_ptr<QuicEncrypter>
ChloFramerVisitor::CreateCurrentOneRttEncrypter() {
return nullptr;
}
void ChloFramerVisitor::OnError(CryptoFramer* ) {}
void ChloFramerVisitor::OnHandshakeMessage(
const CryptoHandshakeMessage& message) {
if (delegate_ != nullptr) {
delegate_->OnChlo(framer_->transport_version(), connection_id_, message);
}
found_chlo_ = true;
}
}
bool ChloExtractor::Extract(const QuicEncryptedPacket& packet,
ParsedQuicVersion version,
const QuicTagVector& create_session_tag_indicators,
Delegate* delegate, uint8_t connection_id_length) {
QUIC_DVLOG(1) << "Extracting CHLO using version " << version;
QuicFramer framer({version}, QuicTime::Zero(), Perspective::IS_SERVER,
connection_id_length);
ChloFramerVisitor visitor(&framer, create_session_tag_indicators, delegate);
framer.set_visitor(&visitor);
if (!framer.ProcessPacket(packet)) {
return false;
}
return visitor.found_chlo() || visitor.chlo_contains_tags();
}
} | #include "quiche/quic/core/chlo_extractor.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/first_flight.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
class TestDelegate : public ChloExtractor::Delegate {
public:
TestDelegate() = default;
~TestDelegate() override = default;
void OnChlo(QuicTransportVersion version, QuicConnectionId connection_id,
const CryptoHandshakeMessage& chlo) override {
version_ = version;
connection_id_ = connection_id;
chlo_ = chlo.DebugString();
absl::string_view alpn_value;
if (chlo.GetStringPiece(kALPN, &alpn_value)) {
alpn_ = std::string(alpn_value);
}
}
QuicConnectionId connection_id() const { return connection_id_; }
QuicTransportVersion transport_version() const { return version_; }
const std::string& chlo() const { return chlo_; }
const std::string& alpn() const { return alpn_; }
private:
QuicConnectionId connection_id_;
QuicTransportVersion version_;
std::string chlo_;
std::string alpn_;
};
class ChloExtractorTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
ChloExtractorTest() : version_(GetParam()) {}
void MakePacket(absl::string_view data, bool munge_offset,
bool munge_stream_id) {
QuicPacketHeader header;
header.destination_connection_id = TestConnectionId();
header.destination_connection_id_included = CONNECTION_ID_PRESENT;
header.version_flag = true;
header.version = version_;
header.reset_flag = false;
header.packet_number_length = PACKET_4BYTE_PACKET_NUMBER;
header.packet_number = QuicPacketNumber(1);
if (version_.HasLongHeaderLengths()) {
header.retry_token_length_length =
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_1;
header.length_length = quiche::VARIABLE_LENGTH_INTEGER_LENGTH_2;
}
QuicFrames frames;
size_t offset = 0;
if (munge_offset) {
offset++;
}
QuicFramer framer(SupportedVersions(version_), QuicTime::Zero(),
Perspective::IS_CLIENT, kQuicDefaultConnectionIdLength);
framer.SetInitialObfuscators(TestConnectionId());
if (!version_.UsesCryptoFrames() || munge_stream_id) {
QuicStreamId stream_id =
QuicUtils::GetCryptoStreamId(version_.transport_version);
if (munge_stream_id) {
stream_id++;
}
frames.push_back(
QuicFrame(QuicStreamFrame(stream_id, false, offset, data)));
} else {
frames.push_back(
QuicFrame(new QuicCryptoFrame(ENCRYPTION_INITIAL, offset, data)));
}
std::unique_ptr<QuicPacket> packet(
BuildUnsizedDataPacket(&framer, header, frames));
EXPECT_TRUE(packet != nullptr);
size_t encrypted_length =
framer.EncryptPayload(ENCRYPTION_INITIAL, header.packet_number, *packet,
buffer_, ABSL_ARRAYSIZE(buffer_));
ASSERT_NE(0u, encrypted_length);
packet_ = std::make_unique<QuicEncryptedPacket>(buffer_, encrypted_length);
EXPECT_TRUE(packet_ != nullptr);
DeleteFrames(&frames);
}
protected:
ParsedQuicVersion version_;
TestDelegate delegate_;
std::unique_ptr<QuicEncryptedPacket> packet_;
char buffer_[kMaxOutgoingPacketSize];
};
INSTANTIATE_TEST_SUITE_P(
ChloExtractorTests, ChloExtractorTest,
::testing::ValuesIn(AllSupportedVersionsWithQuicCrypto()),
::testing::PrintToStringParamName());
TEST_P(ChloExtractorTest, FindsValidChlo) {
CryptoHandshakeMessage client_hello;
client_hello.set_tag(kCHLO);
std::string client_hello_str(client_hello.GetSerialized().AsStringPiece());
MakePacket(client_hello_str, false,
false);
EXPECT_TRUE(ChloExtractor::Extract(*packet_, version_, {}, &delegate_,
kQuicDefaultConnectionIdLength));
EXPECT_EQ(version_.transport_version, delegate_.transport_version());
EXPECT_EQ(TestConnectionId(), delegate_.connection_id());
EXPECT_EQ(client_hello.DebugString(), delegate_.chlo());
}
TEST_P(ChloExtractorTest, DoesNotFindValidChloOnWrongStream) {
if (version_.UsesCryptoFrames()) {
return;
}
CryptoHandshakeMessage client_hello;
client_hello.set_tag(kCHLO);
std::string client_hello_str(client_hello.GetSerialized().AsStringPiece());
MakePacket(client_hello_str,
false, true);
EXPECT_FALSE(ChloExtractor::Extract(*packet_, version_, {}, &delegate_,
kQuicDefaultConnectionIdLength));
}
TEST_P(ChloExtractorTest, DoesNotFindValidChloOnWrongOffset) {
CryptoHandshakeMessage client_hello;
client_hello.set_tag(kCHLO);
std::string client_hello_str(client_hello.GetSerialized().AsStringPiece());
MakePacket(client_hello_str, true,
false);
EXPECT_FALSE(ChloExtractor::Extract(*packet_, version_, {}, &delegate_,
kQuicDefaultConnectionIdLength));
}
TEST_P(ChloExtractorTest, DoesNotFindInvalidChlo) {
MakePacket("foo", false,
false);
EXPECT_FALSE(ChloExtractor::Extract(*packet_, version_, {}, &delegate_,
kQuicDefaultConnectionIdLength));
}
TEST_P(ChloExtractorTest, FirstFlight) {
std::vector<std::unique_ptr<QuicReceivedPacket>> packets =
GetFirstFlightOfPackets(version_);
ASSERT_EQ(packets.size(), 1u);
EXPECT_TRUE(ChloExtractor::Extract(*packets[0], version_, {}, &delegate_,
kQuicDefaultConnectionIdLength));
EXPECT_EQ(version_.transport_version, delegate_.transport_version());
EXPECT_EQ(TestConnectionId(), delegate_.connection_id());
EXPECT_EQ(AlpnForVersion(version_), delegate_.alpn());
}
}
}
} |
236 | cpp | google/quiche | legacy_quic_stream_id_manager | quiche/quic/core/legacy_quic_stream_id_manager.cc | quiche/quic/core/legacy_quic_stream_id_manager_test.cc | #ifndef QUICHE_QUIC_CORE_LEGACY_QUIC_STREAM_ID_MANAGER_H_
#define QUICHE_QUIC_CORE_LEGACY_QUIC_STREAM_ID_MANAGER_H_
#include "absl/container/flat_hash_set.h"
#include "quiche/quic/core/quic_stream_id_manager.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
namespace quic {
namespace test {
class QuicSessionPeer;
}
class QuicSession;
class QUICHE_EXPORT LegacyQuicStreamIdManager {
public:
LegacyQuicStreamIdManager(Perspective perspective,
QuicTransportVersion transport_version,
size_t max_open_outgoing_streams,
size_t max_open_incoming_streams);
~LegacyQuicStreamIdManager();
bool CanOpenNextOutgoingStream() const;
bool CanOpenIncomingStream() const;
bool MaybeIncreaseLargestPeerStreamId(const QuicStreamId id);
bool IsAvailableStream(QuicStreamId id) const;
QuicStreamId GetNextOutgoingStreamId();
void ActivateStream(bool is_incoming);
void OnStreamClosed(bool is_incoming);
bool IsIncomingStream(QuicStreamId id) const;
size_t MaxAvailableStreams() const;
void set_max_open_incoming_streams(size_t max_open_incoming_streams) {
max_open_incoming_streams_ = max_open_incoming_streams;
}
void set_max_open_outgoing_streams(size_t max_open_outgoing_streams) {
max_open_outgoing_streams_ = max_open_outgoing_streams;
}
void set_largest_peer_created_stream_id(
QuicStreamId largest_peer_created_stream_id) {
largest_peer_created_stream_id_ = largest_peer_created_stream_id;
}
size_t max_open_incoming_streams() const {
return max_open_incoming_streams_;
}
size_t max_open_outgoing_streams() const {
return max_open_outgoing_streams_;
}
QuicStreamId next_outgoing_stream_id() const {
return next_outgoing_stream_id_;
}
QuicStreamId largest_peer_created_stream_id() const {
return largest_peer_created_stream_id_;
}
size_t GetNumAvailableStreams() const;
size_t num_open_incoming_streams() const {
return num_open_incoming_streams_;
}
size_t num_open_outgoing_streams() const {
return num_open_outgoing_streams_;
}
private:
friend class test::QuicSessionPeer;
const Perspective perspective_;
const QuicTransportVersion transport_version_;
size_t max_open_outgoing_streams_;
size_t max_open_incoming_streams_;
QuicStreamId next_outgoing_stream_id_;
absl::flat_hash_set<QuicStreamId> available_streams_;
QuicStreamId largest_peer_created_stream_id_;
size_t num_open_incoming_streams_;
size_t num_open_outgoing_streams_;
};
}
#endif
#include "quiche/quic/core/legacy_quic_stream_id_manager.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
namespace quic {
LegacyQuicStreamIdManager::LegacyQuicStreamIdManager(
Perspective perspective, QuicTransportVersion transport_version,
size_t max_open_outgoing_streams, size_t max_open_incoming_streams)
: perspective_(perspective),
transport_version_(transport_version),
max_open_outgoing_streams_(max_open_outgoing_streams),
max_open_incoming_streams_(max_open_incoming_streams),
next_outgoing_stream_id_(QuicUtils::GetFirstBidirectionalStreamId(
transport_version_, perspective_)),
largest_peer_created_stream_id_(
perspective_ == Perspective::IS_SERVER
? (QuicVersionUsesCryptoFrames(transport_version_)
? QuicUtils::GetInvalidStreamId(transport_version_)
: QuicUtils::GetCryptoStreamId(transport_version_))
: QuicUtils::GetInvalidStreamId(transport_version_)),
num_open_incoming_streams_(0),
num_open_outgoing_streams_(0) {}
LegacyQuicStreamIdManager::~LegacyQuicStreamIdManager() {}
bool LegacyQuicStreamIdManager::CanOpenNextOutgoingStream() const {
QUICHE_DCHECK_LE(num_open_outgoing_streams_, max_open_outgoing_streams_);
QUIC_DLOG_IF(INFO, num_open_outgoing_streams_ == max_open_outgoing_streams_)
<< "Failed to create a new outgoing stream. "
<< "Already " << num_open_outgoing_streams_ << " open.";
return num_open_outgoing_streams_ < max_open_outgoing_streams_;
}
bool LegacyQuicStreamIdManager::CanOpenIncomingStream() const {
return num_open_incoming_streams_ < max_open_incoming_streams_;
}
bool LegacyQuicStreamIdManager::MaybeIncreaseLargestPeerStreamId(
const QuicStreamId stream_id) {
available_streams_.erase(stream_id);
if (largest_peer_created_stream_id_ !=
QuicUtils::GetInvalidStreamId(transport_version_) &&
stream_id <= largest_peer_created_stream_id_) {
return true;
}
size_t additional_available_streams =
(stream_id - largest_peer_created_stream_id_) / 2 - 1;
if (largest_peer_created_stream_id_ ==
QuicUtils::GetInvalidStreamId(transport_version_)) {
additional_available_streams = (stream_id + 1) / 2 - 1;
}
size_t new_num_available_streams =
GetNumAvailableStreams() + additional_available_streams;
if (new_num_available_streams > MaxAvailableStreams()) {
QUIC_DLOG(INFO) << perspective_
<< "Failed to create a new incoming stream with id:"
<< stream_id << ". There are already "
<< GetNumAvailableStreams()
<< " streams available, which would become "
<< new_num_available_streams << ", which exceeds the limit "
<< MaxAvailableStreams() << ".";
return false;
}
QuicStreamId first_available_stream = largest_peer_created_stream_id_ + 2;
if (largest_peer_created_stream_id_ ==
QuicUtils::GetInvalidStreamId(transport_version_)) {
first_available_stream = QuicUtils::GetFirstBidirectionalStreamId(
transport_version_, QuicUtils::InvertPerspective(perspective_));
}
for (QuicStreamId id = first_available_stream; id < stream_id; id += 2) {
available_streams_.insert(id);
}
largest_peer_created_stream_id_ = stream_id;
return true;
}
QuicStreamId LegacyQuicStreamIdManager::GetNextOutgoingStreamId() {
QuicStreamId id = next_outgoing_stream_id_;
next_outgoing_stream_id_ += 2;
return id;
}
void LegacyQuicStreamIdManager::ActivateStream(bool is_incoming) {
if (is_incoming) {
++num_open_incoming_streams_;
return;
}
++num_open_outgoing_streams_;
}
void LegacyQuicStreamIdManager::OnStreamClosed(bool is_incoming) {
if (is_incoming) {
QUIC_BUG_IF(quic_bug_12720_1, num_open_incoming_streams_ == 0);
--num_open_incoming_streams_;
return;
}
QUIC_BUG_IF(quic_bug_12720_2, num_open_outgoing_streams_ == 0);
--num_open_outgoing_streams_;
}
bool LegacyQuicStreamIdManager::IsAvailableStream(QuicStreamId id) const {
if (!IsIncomingStream(id)) {
return id >= next_outgoing_stream_id_;
}
return largest_peer_created_stream_id_ ==
QuicUtils::GetInvalidStreamId(transport_version_) ||
id > largest_peer_created_stream_id_ ||
available_streams_.contains(id);
}
bool LegacyQuicStreamIdManager::IsIncomingStream(QuicStreamId id) const {
return id % 2 != next_outgoing_stream_id_ % 2;
}
size_t LegacyQuicStreamIdManager::GetNumAvailableStreams() const {
return available_streams_.size();
}
size_t LegacyQuicStreamIdManager::MaxAvailableStreams() const {
return max_open_incoming_streams_ * kMaxAvailableStreamsMultiplier;
}
} | #include "quiche/quic/core/legacy_quic_stream_id_manager.h"
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
using testing::_;
using testing::StrictMock;
struct TestParams {
TestParams(ParsedQuicVersion version, Perspective perspective)
: version(version), perspective(perspective) {}
ParsedQuicVersion version;
Perspective perspective;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
ParsedQuicVersionToString(p.version),
(p.perspective == Perspective::IS_CLIENT ? "Client" : "Server"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
for (ParsedQuicVersion version : AllSupportedVersions()) {
for (auto perspective : {Perspective::IS_CLIENT, Perspective::IS_SERVER}) {
if (!VersionHasIetfQuicFrames(version.transport_version)) {
params.push_back(TestParams(version, perspective));
}
}
}
return params;
}
class LegacyQuicStreamIdManagerTest : public QuicTestWithParam<TestParams> {
public:
LegacyQuicStreamIdManagerTest()
: manager_(GetParam().perspective, GetParam().version.transport_version,
kDefaultMaxStreamsPerConnection,
kDefaultMaxStreamsPerConnection) {}
protected:
QuicStreamId GetNthPeerInitiatedId(int n) {
if (GetParam().perspective == Perspective::IS_SERVER) {
return QuicUtils::GetFirstBidirectionalStreamId(
GetParam().version.transport_version, Perspective::IS_CLIENT) +
2 * n;
} else {
return 2 + 2 * n;
}
}
LegacyQuicStreamIdManager manager_;
};
INSTANTIATE_TEST_SUITE_P(Tests, LegacyQuicStreamIdManagerTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(LegacyQuicStreamIdManagerTest, CanOpenNextOutgoingStream) {
for (size_t i = 0; i < manager_.max_open_outgoing_streams() - 1; ++i) {
manager_.ActivateStream(false);
}
EXPECT_TRUE(manager_.CanOpenNextOutgoingStream());
manager_.ActivateStream(false);
EXPECT_FALSE(manager_.CanOpenNextOutgoingStream());
}
TEST_P(LegacyQuicStreamIdManagerTest, CanOpenIncomingStream) {
for (size_t i = 0; i < manager_.max_open_incoming_streams() - 1; ++i) {
manager_.ActivateStream(true);
}
EXPECT_TRUE(manager_.CanOpenIncomingStream());
manager_.ActivateStream(true);
EXPECT_FALSE(manager_.CanOpenIncomingStream());
}
TEST_P(LegacyQuicStreamIdManagerTest, AvailableStreams) {
ASSERT_TRUE(
manager_.MaybeIncreaseLargestPeerStreamId(GetNthPeerInitiatedId(3)));
EXPECT_TRUE(manager_.IsAvailableStream(GetNthPeerInitiatedId(1)));
EXPECT_TRUE(manager_.IsAvailableStream(GetNthPeerInitiatedId(2)));
ASSERT_TRUE(
manager_.MaybeIncreaseLargestPeerStreamId(GetNthPeerInitiatedId(2)));
ASSERT_TRUE(
manager_.MaybeIncreaseLargestPeerStreamId(GetNthPeerInitiatedId(1)));
}
TEST_P(LegacyQuicStreamIdManagerTest, MaxAvailableStreams) {
const size_t kMaxStreamsForTest = 10;
const size_t kAvailableStreamLimit = manager_.MaxAvailableStreams();
EXPECT_EQ(
manager_.max_open_incoming_streams() * kMaxAvailableStreamsMultiplier,
manager_.MaxAvailableStreams());
EXPECT_LE(10 * kMaxStreamsForTest, kAvailableStreamLimit);
EXPECT_TRUE(
manager_.MaybeIncreaseLargestPeerStreamId(GetNthPeerInitiatedId(0)));
const int kLimitingStreamId =
GetNthPeerInitiatedId(kAvailableStreamLimit + 1);
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(kLimitingStreamId));
EXPECT_FALSE(
manager_.MaybeIncreaseLargestPeerStreamId(kLimitingStreamId + 2 * 2));
}
TEST_P(LegacyQuicStreamIdManagerTest, MaximumAvailableOpenedStreams) {
QuicStreamId stream_id = GetNthPeerInitiatedId(0);
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(stream_id));
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
stream_id + 2 * (manager_.max_open_incoming_streams() - 1)));
}
TEST_P(LegacyQuicStreamIdManagerTest, TooManyAvailableStreams) {
QuicStreamId stream_id = GetNthPeerInitiatedId(0);
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(stream_id));
QuicStreamId stream_id2 =
GetNthPeerInitiatedId(2 * manager_.MaxAvailableStreams() + 4);
EXPECT_FALSE(manager_.MaybeIncreaseLargestPeerStreamId(stream_id2));
}
TEST_P(LegacyQuicStreamIdManagerTest, ManyAvailableStreams) {
manager_.set_max_open_incoming_streams(200);
QuicStreamId stream_id = GetNthPeerInitiatedId(0);
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(stream_id));
EXPECT_TRUE(
manager_.MaybeIncreaseLargestPeerStreamId(GetNthPeerInitiatedId(199)));
}
TEST_P(LegacyQuicStreamIdManagerTest,
TestMaxIncomingAndOutgoingStreamsAllowed) {
EXPECT_EQ(manager_.max_open_incoming_streams(),
kDefaultMaxStreamsPerConnection);
EXPECT_EQ(manager_.max_open_outgoing_streams(),
kDefaultMaxStreamsPerConnection);
}
}
}
} |
237 | cpp | google/quiche | quic_framer | quiche/quic/core/quic_framer.cc | quiche/quic/core/quic_framer_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_FRAMER_H_
#define QUICHE_QUIC_CORE_QUIC_FRAMER_H_
#include <cstddef>
#include <cstdint>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicFramerPeer;
}
class QuicDataReader;
class QuicDataWriter;
class QuicFramer;
class QuicStreamFrameDataProducer;
inline constexpr size_t kQuicFrameTypeSize = 1;
inline constexpr size_t kQuicErrorCodeSize = 4;
inline constexpr size_t kQuicErrorDetailsLengthSize = 2;
inline constexpr size_t kQuicMaxStreamIdSize = 4;
inline constexpr size_t kQuicMaxStreamOffsetSize = 8;
inline constexpr size_t kQuicStreamPayloadLengthSize = 2;
inline constexpr size_t kQuicIetfQuicErrorCodeSize = 2;
inline constexpr size_t kIetfQuicMinErrorPhraseLengthSize = 1;
inline constexpr size_t kQuicDeltaTimeLargestObservedSize = 2;
inline constexpr size_t kQuicNumTimestampsSize = 1;
inline constexpr size_t kNumberOfNackRangesSize = 1;
inline constexpr size_t kNumberOfAckBlocksSize = 1;
inline constexpr size_t kMaxNackRanges =
(1 << (kNumberOfNackRangesSize * 8)) - 1;
inline constexpr size_t kMaxAckBlocks = (1 << (kNumberOfAckBlocksSize * 8)) - 1;
class QUICHE_EXPORT QuicFramerVisitorInterface {
public:
virtual ~QuicFramerVisitorInterface() {}
virtual void OnError(QuicFramer* framer) = 0;
virtual bool OnProtocolVersionMismatch(
ParsedQuicVersion received_version) = 0;
virtual void OnPacket() = 0;
virtual void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& packet) = 0;
virtual void OnRetryPacket(QuicConnectionId original_connection_id,
QuicConnectionId new_connection_id,
absl::string_view retry_token,
absl::string_view retry_integrity_tag,
absl::string_view retry_without_tag) = 0;
virtual bool OnUnauthenticatedPublicHeader(
const QuicPacketHeader& header) = 0;
virtual bool OnUnauthenticatedHeader(const QuicPacketHeader& header) = 0;
virtual void OnDecryptedPacket(size_t length, EncryptionLevel level) = 0;
virtual bool OnPacketHeader(const QuicPacketHeader& header) = 0;
virtual void OnCoalescedPacket(const QuicEncryptedPacket& packet) = 0;
virtual void OnUndecryptablePacket(const QuicEncryptedPacket& packet,
EncryptionLevel decryption_level,
bool has_decryption_key) = 0;
virtual bool OnStreamFrame(const QuicStreamFrame& frame) = 0;
virtual bool OnCryptoFrame(const QuicCryptoFrame& frame) = 0;
virtual bool OnAckFrameStart(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time) = 0;
virtual bool OnAckRange(QuicPacketNumber start, QuicPacketNumber end) = 0;
virtual bool OnAckTimestamp(QuicPacketNumber packet_number,
QuicTime timestamp) = 0;
virtual bool OnAckFrameEnd(
QuicPacketNumber start,
const std::optional<QuicEcnCounts>& ecn_counts) = 0;
virtual bool OnStopWaitingFrame(const QuicStopWaitingFrame& frame) = 0;
virtual bool OnPaddingFrame(const QuicPaddingFrame& frame) = 0;
virtual bool OnPingFrame(const QuicPingFrame& frame) = 0;
virtual bool OnRstStreamFrame(const QuicRstStreamFrame& frame) = 0;
virtual bool OnConnectionCloseFrame(
const QuicConnectionCloseFrame& frame) = 0;
virtual bool OnStopSendingFrame(const QuicStopSendingFrame& frame) = 0;
virtual bool OnPathChallengeFrame(const QuicPathChallengeFrame& frame) = 0;
virtual bool OnPathResponseFrame(const QuicPathResponseFrame& frame) = 0;
virtual bool OnGoAwayFrame(const QuicGoAwayFrame& frame) = 0;
virtual bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) = 0;
virtual bool OnBlockedFrame(const QuicBlockedFrame& frame) = 0;
virtual bool OnNewConnectionIdFrame(
const QuicNewConnectionIdFrame& frame) = 0;
virtual bool OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame) = 0;
virtual bool OnNewTokenFrame(const QuicNewTokenFrame& frame) = 0;
virtual bool OnMessageFrame(const QuicMessageFrame& frame) = 0;
virtual bool OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& frame) = 0;
virtual bool OnAckFrequencyFrame(const QuicAckFrequencyFrame& frame) = 0;
virtual bool OnResetStreamAtFrame(const QuicResetStreamAtFrame& frame) = 0;
virtual void OnPacketComplete() = 0;
virtual bool IsValidStatelessResetToken(
const StatelessResetToken& token) const = 0;
virtual void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& packet) = 0;
virtual bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) = 0;
virtual bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) = 0;
virtual void OnKeyUpdate(KeyUpdateReason reason) = 0;
virtual void OnDecryptedFirstPacketInKeyPhase() = 0;
virtual std::unique_ptr<QuicDecrypter>
AdvanceKeysAndCreateCurrentOneRttDecrypter() = 0;
virtual std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() = 0;
};
class QUICHE_EXPORT QuicFramer {
public:
QuicFramer(const ParsedQuicVersionVector& supported_versions,
QuicTime creation_time, Perspective perspective,
uint8_t expected_server_connection_id_length);
QuicFramer(const QuicFramer&) = delete;
QuicFramer& operator=(const QuicFramer&) = delete;
virtual ~QuicFramer();
bool IsSupportedVersion(const ParsedQuicVersion version) const;
void set_visitor(QuicFramerVisitorInterface* visitor) { visitor_ = visitor; }
const ParsedQuicVersionVector& supported_versions() const {
return supported_versions_;
}
QuicTransportVersion transport_version() const {
return version_.transport_version;
}
ParsedQuicVersion version() const { return version_; }
void set_version(const ParsedQuicVersion version);
void set_version_for_tests(const ParsedQuicVersion version) {
version_ = version;
}
QuicErrorCode error() const { return error_; }
void set_process_timestamps(bool process_timestamps) const {
process_timestamps_ = process_timestamps;
}
void set_max_receive_timestamps_per_ack(uint32_t max_timestamps) const {
max_receive_timestamps_per_ack_ = max_timestamps;
}
void set_receive_timestamps_exponent(uint32_t exponent) const {
receive_timestamps_exponent_ = exponent;
}
void set_process_reset_stream_at(bool process_reset_stream_at) {
process_reset_stream_at_ = process_reset_stream_at;
}
bool ProcessPacket(const QuicEncryptedPacket& packet);
bool is_processing_packet() const { return is_processing_packet_; }
static size_t GetMinStreamFrameSize(QuicTransportVersion version,
QuicStreamId stream_id,
QuicStreamOffset offset,
bool last_frame_in_packet,
size_t data_length);
static size_t GetMinCryptoFrameSize(QuicStreamOffset offset,
QuicPacketLength data_length);
static size_t GetMessageFrameSize(bool last_frame_in_packet,
QuicByteCount length);
static size_t GetMinAckFrameSize(QuicTransportVersion version,
const QuicAckFrame& ack_frame,
uint32_t local_ack_delay_exponent,
bool use_ietf_ack_with_receive_timestamp);
static size_t GetStopWaitingFrameSize(
QuicPacketNumberLength packet_number_length);
static size_t GetRstStreamFrameSize(QuicTransportVersion version,
const QuicRstStreamFrame& frame);
static size_t GetAckFrequencyFrameSize(const QuicAckFrequencyFrame& frame);
static size_t GetResetStreamAtFrameSize(const QuicResetStreamAtFrame& frame);
static size_t GetConnectionCloseFrameSize(
QuicTransportVersion version, const QuicConnectionCloseFrame& frame);
static size_t GetMinGoAwayFrameSize();
static size_t GetWindowUpdateFrameSize(QuicTransportVersion version,
const QuicWindowUpdateFrame& frame);
static size_t GetMaxStreamsFrameSize(QuicTransportVersion version,
const QuicMaxStreamsFrame& frame);
static size_t GetStreamsBlockedFrameSize(
QuicTransportVersion version, const QuicStreamsBlockedFrame& frame);
static size_t GetBlockedFrameSize(QuicTransportVersion version,
const QuicBlockedFrame& frame);
static size_t GetPathChallengeFrameSize(const QuicPathChallengeFrame& frame);
static size_t GetPathResponseFrameSize(const QuicPathResponseFrame& frame);
static size_t GetStreamIdSize(QuicStreamId stream_id);
static size_t GetStreamOffsetSize(QuicStreamOffset offset);
static size_t GetNewConnectionIdFrameSize(
const QuicNewConnectionIdFrame& frame);
static size_t GetRetireConnectionIdFrameSize(
const QuicRetireConnectionIdFrame& frame);
static size_t GetNewTokenFrameSize(const QuicNewTokenFrame& frame);
static size_t GetStopSendingFrameSize(const QuicStopSendingFrame& frame);
static size_t GetRetransmittableControlFrameSize(QuicTransportVersion version,
const QuicFrame& frame);
size_t GetSerializedFrameLength(const QuicFrame& frame, size_t free_bytes,
bool first_frame_in_packet,
bool last_frame_in_packet,
QuicPacketNumberLength packet_number_length);
static absl::string_view GetAssociatedDataFromEncryptedPacket(
QuicTransportVersion version, const QuicEncryptedPacket& encrypted,
uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool includes_version,
bool includes_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
uint64_t retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length);
static QuicErrorCode ParsePublicHeader(
QuicDataReader* reader, uint8_t expected_destination_connection_id_length,
bool ietf_format, uint8_t* first_byte, PacketHeaderFormat* format,
bool* version_present, bool* has_length_prefix,
QuicVersionLabel* version_label, ParsedQuicVersion* parsed_version,
QuicConnectionId* destination_connection_id,
QuicConnectionId* source_connection_id,
QuicLongHeaderType* long_packet_type,
quiche::QuicheVariableLengthIntegerLength* retry_token_length_length,
absl::string_view* retry_token, std::string* detailed_error);
static QuicErrorCode ParsePublicHeaderDispatcher(
const QuicEncryptedPacket& packet,
uint8_t expected_destination_connection_id_length,
PacketHeaderFormat* format, QuicLongHeaderType* long_packet_type,
bool* version_present, bool* has_length_prefix,
QuicVersionLabel* version_label, ParsedQuicVersion* parsed_version,
QuicConnectionId* destination_connection_id,
QuicConnectionId* source_connection_id,
std::optional<absl::string_view>* retry_token,
std::string* detailed_error);
static QuicErrorCode ParsePublicHeaderDispatcherShortHeaderLengthUnknown(
const QuicEncryptedPacket& packet, PacketHeaderFormat* format,
QuicLongHeaderType* long_packet_type, bool* version_present,
bool* has_length_prefix, QuicVersionLabel* version_label,
ParsedQuicVersion* parsed_version,
QuicConnectionId* destination_connection_id,
QuicConnectionId* source_connection_id,
std::optional<absl::string_view>* retry_token,
std::string* detailed_error, ConnectionIdGeneratorInterface& generator);
static QuicErrorCode TryDecryptInitialPacketDispatcher(
const QuicEncryptedPacket& packet, const ParsedQuicVersion& version,
PacketHeaderFormat format, QuicLongHeaderType long_packet_type,
const QuicConnectionId& destination_connection_id,
const QuicConnectionId& source_connection_id,
const std::optional<absl::string_view>& retry_token,
QuicPacketNumber largest_decrypted_inital_packet_number,
QuicDecrypter& decrypter, std::optional<uint64_t>* packet_number);
size_t BuildDataPacket(const QuicPacketHeader& header,
const QuicFrames& frames, char* buffer,
size_t packet_length, EncryptionLevel level);
static std::unique_ptr<QuicEncryptedPacket> BuildPublicResetPacket(
const QuicPublicResetPacket& packet);
static size_t GetMinStatelessResetPacketLength();
static std::unique_ptr<QuicEncryptedPacket> BuildIetfStatelessResetPacket(
QuicConnectionId connection_id, size_t received_packet_length,
StatelessResetToken stateless_reset_token);
static std::unique_ptr<QuicEncryptedPacket> BuildIetfStatelessResetPacket(
QuicConnectionId connection_id, size_t received_packet_length,
StatelessResetToken stateless_reset_token, QuicRandom* random);
static std::unique_ptr<QuicEncryptedPacket> BuildVersionNegotiationPacket(
QuicConnectionId server_connection_id,
QuicConnectionId client_connection_id, bool ietf_quic,
bool use_length_prefix, const ParsedQuicVersionVector& versions);
static std::unique_ptr<QuicEncryptedPacket> BuildIetfVersionNegotiationPacket(
bool use_length_prefix, QuicConnectionId server_connection_id,
QuicConnectionId client_connection_id,
const ParsedQuicVersionVector& versions);
bool AppendIetfHeaderTypeByte(const QuicPacketHeader& header,
QuicDataWriter* writer);
bool AppendIetfPacketHeader(const QuicPacketHeader& header,
QuicDataWriter* writer,
size_t* length_field_offset);
bool WriteIetfLongHeaderLength(const QuicPacketHeader& header,
QuicDataWriter* writer,
size_t length_field_offset,
EncryptionLevel level);
bool AppendTypeByte(const QuicFrame& frame, bool last_frame_in_packet,
QuicDataWriter* writer);
bool AppendIetfFrameType(const QuicFrame& frame, bool last_frame_in_packet,
QuicDataWriter* writer);
size_t AppendIetfFrames(const QuicFrames& frames, QuicDataWriter* writer);
bool AppendStreamFrame(const QuicStreamFrame& frame,
bool no_stream_frame_length, QuicDataWriter* writer);
bool AppendCryptoFrame(const QuicCryptoFrame& frame, QuicDataWriter* writer);
bool AppendAckFrequencyFrame(const QuicAckFrequencyFrame& frame,
QuicDataWriter* writer);
bool AppendResetFrameAtFrame(const QuicResetStreamAtFrame& frame,
QuicDataWriter& writer);
void SetDecrypter(EncryptionLevel level,
std::unique_ptr<QuicDecrypter> decrypter);
void SetAlternativeDecrypter(EncryptionLevel level,
std::unique_ptr<QuicDecrypter> decrypter,
bool latch_once_used);
void InstallDecrypter(EncryptionLevel level,
std::unique_ptr<QuicDecrypter> decrypter);
void RemoveDecrypter(EncryptionLevel level);
void SetKeyUpdateSupportForConnection(bool enabled);
void DiscardPreviousOneRttKeys();
bool DoKeyUpdate(KeyUpdateReason reason);
QuicPacketCount PotentialPeerKeyUpdateAttemptCount() const;
const QuicDecrypter* GetDecrypter(EncryptionLevel level) const;
const QuicDecrypter* decrypter() const;
const QuicDecrypter* alternative_decrypter() const;
void SetEncrypter(EncryptionLevel level,
std::unique_ptr<QuicEncrypter> encrypter);
void RemoveEncrypter(EncryptionLevel level);
void SetInitialObfuscators(QuicConnectionId connection_id);
size_t EncryptInPlace(EncryptionLevel level, QuicPacketNumber packet_number,
size_t ad_len, size_t total_len, size_t buffer_len,
char* buffer);
size_t EncryptPayload(EncryptionLevel level, QuicPacketNumber packet_number,
const QuicPacket& packet, char* buffer,
size_t buffer_len);
size_t GetCiphertextSize(EncryptionLevel level, size_t plaintext_size) const;
size_t GetMaxPlaintextSize(size_t ciphertext_size);
QuicPacketCount GetOneRttEncrypterConfidentialityLimit() const;
const std::string& detailed_error() { return detailed_error_; }
static QuicPacketNumberLength GetMinPacketNumberLength(
QuicPacketNumber packet_number);
void SetSupportedVersions(const ParsedQuicVersionVector& versions) {
supported_versions_ = versions;
version_ = versions[0];
}
bool IsIetfStatelessResetPacket(const QuicPacketHeader& header) const;
bool HasEncrypterOfEncryptionLevel(EncryptionLevel level) const;
bool HasDecrypterOfEncryptionLevel(EncryptionLevel level) const;
bool HasAnEncrypterForSpace(PacketNumberSpace space) const; | #include "quiche/quic/core/quic_framer.h"
#include <algorithm>
#include <cstdint>
#include <cstring>
#include <limits>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/memory/memory.h"
#include "absl/strings/escaping.h"
#include "absl/strings/match.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/null_decrypter.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_framer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_data_producer.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
using testing::_;
using testing::ContainerEq;
using testing::Optional;
using testing::Return;
namespace quic {
namespace test {
namespace {
const uint64_t kEpoch = UINT64_C(1) << 32;
const uint64_t kMask = kEpoch - 1;
const uint8_t kPacket0ByteConnectionId = 0;
const uint8_t kPacket8ByteConnectionId = 8;
constexpr size_t kTagSize = 16;
const StatelessResetToken kTestStatelessResetToken{
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f};
QuicConnectionId FramerTestConnectionId() {
return TestConnectionId(UINT64_C(0xFEDCBA9876543210));
}
QuicConnectionId FramerTestConnectionIdPlusOne() {
return TestConnectionId(UINT64_C(0xFEDCBA9876543211));
}
QuicConnectionId FramerTestConnectionIdNineBytes() {
uint8_t connection_id_bytes[9] = {0xFE, 0xDC, 0xBA, 0x98, 0x76,
0x54, 0x32, 0x10, 0x42};
return QuicConnectionId(reinterpret_cast<char*>(connection_id_bytes),
sizeof(connection_id_bytes));
}
const QuicPacketNumber kPacketNumber = QuicPacketNumber(UINT64_C(0x12345678));
const QuicPacketNumber kSmallLargestObserved =
QuicPacketNumber(UINT16_C(0x1234));
const QuicPacketNumber kSmallMissingPacket = QuicPacketNumber(UINT16_C(0x1233));
const QuicPacketNumber kLeastUnacked = QuicPacketNumber(UINT64_C(0x012345670));
const QuicStreamId kStreamId = UINT64_C(0x01020304);
const QuicStreamOffset kStreamOffset = UINT64_C(0x3A98FEDC32107654);
const QuicPublicResetNonceProof kNonceProof = UINT64_C(0xABCDEF0123456789);
const QuicPacketNumber kLargestIetfLargestObserved =
QuicPacketNumber(UINT64_C(0x3fffffffffffffff));
const uint8_t kVarInt62OneByte = 0x00;
const uint8_t kVarInt62TwoBytes = 0x40;
const uint8_t kVarInt62FourBytes = 0x80;
const uint8_t kVarInt62EightBytes = 0xc0;
class TestEncrypter : public QuicEncrypter {
public:
~TestEncrypter() override {}
bool SetKey(absl::string_view ) override { return true; }
bool SetNoncePrefix(absl::string_view ) override {
return true;
}
bool SetIV(absl::string_view ) override { return true; }
bool SetHeaderProtectionKey(absl::string_view ) override {
return true;
}
bool EncryptPacket(uint64_t packet_number, absl::string_view associated_data,
absl::string_view plaintext, char* output,
size_t* output_length,
size_t ) override {
packet_number_ = QuicPacketNumber(packet_number);
associated_data_ = std::string(associated_data);
plaintext_ = std::string(plaintext);
memcpy(output, plaintext.data(), plaintext.length());
*output_length = plaintext.length();
return true;
}
std::string GenerateHeaderProtectionMask(
absl::string_view ) override {
return std::string(5, 0);
}
size_t GetKeySize() const override { return 0; }
size_t GetNoncePrefixSize() const override { return 0; }
size_t GetIVSize() const override { return 0; }
size_t GetMaxPlaintextSize(size_t ciphertext_size) const override {
return ciphertext_size;
}
size_t GetCiphertextSize(size_t plaintext_size) const override {
return plaintext_size;
}
QuicPacketCount GetConfidentialityLimit() const override {
return std::numeric_limits<QuicPacketCount>::max();
}
absl::string_view GetKey() const override { return absl::string_view(); }
absl::string_view GetNoncePrefix() const override {
return absl::string_view();
}
QuicPacketNumber packet_number_;
std::string associated_data_;
std::string plaintext_;
};
class TestDecrypter : public QuicDecrypter {
public:
~TestDecrypter() override {}
bool SetKey(absl::string_view ) override { return true; }
bool SetNoncePrefix(absl::string_view ) override {
return true;
}
bool SetIV(absl::string_view ) override { return true; }
bool SetHeaderProtectionKey(absl::string_view ) override {
return true;
}
bool SetPreliminaryKey(absl::string_view ) override {
QUIC_BUG(quic_bug_10486_1) << "should not be called";
return false;
}
bool SetDiversificationNonce(const DiversificationNonce& ) override {
return true;
}
bool DecryptPacket(uint64_t packet_number, absl::string_view associated_data,
absl::string_view ciphertext, char* output,
size_t* output_length,
size_t ) override {
packet_number_ = QuicPacketNumber(packet_number);
associated_data_ = std::string(associated_data);
ciphertext_ = std::string(ciphertext);
memcpy(output, ciphertext.data(), ciphertext.length());
*output_length = ciphertext.length();
return true;
}
std::string GenerateHeaderProtectionMask(
QuicDataReader* ) override {
return std::string(5, 0);
}
size_t GetKeySize() const override { return 0; }
size_t GetNoncePrefixSize() const override { return 0; }
size_t GetIVSize() const override { return 0; }
absl::string_view GetKey() const override { return absl::string_view(); }
absl::string_view GetNoncePrefix() const override {
return absl::string_view();
}
uint32_t cipher_id() const override { return 0xFFFFFFF2; }
QuicPacketCount GetIntegrityLimit() const override {
return std::numeric_limits<QuicPacketCount>::max();
}
QuicPacketNumber packet_number_;
std::string associated_data_;
std::string ciphertext_;
};
std::unique_ptr<QuicEncryptedPacket> EncryptPacketWithTagAndPhase(
const QuicPacket& packet, uint8_t tag, bool phase) {
std::string packet_data = std::string(packet.AsStringPiece());
if (phase) {
packet_data[0] |= FLAGS_KEY_PHASE_BIT;
} else {
packet_data[0] &= ~FLAGS_KEY_PHASE_BIT;
}
TaggingEncrypter crypter(tag);
const size_t packet_size = crypter.GetCiphertextSize(packet_data.size());
char* buffer = new char[packet_size];
size_t buf_len = 0;
if (!crypter.EncryptPacket(0, absl::string_view(), packet_data, buffer,
&buf_len, packet_size)) {
delete[] buffer;
return nullptr;
}
return std::make_unique<QuicEncryptedPacket>(buffer, buf_len,
true);
}
class TestQuicVisitor : public QuicFramerVisitorInterface {
public:
TestQuicVisitor()
: error_count_(0),
version_mismatch_(0),
packet_count_(0),
frame_count_(0),
complete_packets_(0),
derive_next_key_count_(0),
decrypted_first_packet_in_key_phase_count_(0),
accept_packet_(true),
accept_public_header_(true) {}
~TestQuicVisitor() override {}
void OnError(QuicFramer* f) override {
QUIC_DLOG(INFO) << "QuicFramer Error: " << QuicErrorCodeToString(f->error())
<< " (" << f->error() << ")";
++error_count_;
}
void OnPacket() override {}
void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& packet) override {
version_negotiation_packet_ =
std::make_unique<QuicVersionNegotiationPacket>((packet));
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
void OnRetryPacket(QuicConnectionId original_connection_id,
QuicConnectionId new_connection_id,
absl::string_view retry_token,
absl::string_view retry_integrity_tag,
absl::string_view retry_without_tag) override {
on_retry_packet_called_ = true;
retry_original_connection_id_ =
std::make_unique<QuicConnectionId>(original_connection_id);
retry_new_connection_id_ =
std::make_unique<QuicConnectionId>(new_connection_id);
retry_token_ = std::make_unique<std::string>(std::string(retry_token));
retry_token_integrity_tag_ =
std::make_unique<std::string>(std::string(retry_integrity_tag));
retry_without_tag_ =
std::make_unique<std::string>(std::string(retry_without_tag));
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
bool OnProtocolVersionMismatch(ParsedQuicVersion received_version) override {
QUIC_DLOG(INFO) << "QuicFramer Version Mismatch, version: "
<< received_version;
++version_mismatch_;
EXPECT_EQ(0u, framer_->current_received_frame_type());
return false;
}
bool OnUnauthenticatedPublicHeader(const QuicPacketHeader& header) override {
header_ = std::make_unique<QuicPacketHeader>((header));
EXPECT_EQ(0u, framer_->current_received_frame_type());
return accept_public_header_;
}
bool OnUnauthenticatedHeader(const QuicPacketHeader& ) override {
EXPECT_EQ(0u, framer_->current_received_frame_type());
return true;
}
void OnDecryptedPacket(size_t ,
EncryptionLevel ) override {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
bool OnPacketHeader(const QuicPacketHeader& header) override {
++packet_count_;
header_ = std::make_unique<QuicPacketHeader>((header));
EXPECT_EQ(0u, framer_->current_received_frame_type());
return accept_packet_;
}
void OnCoalescedPacket(const QuicEncryptedPacket& packet) override {
coalesced_packets_.push_back(packet.Clone());
}
void OnUndecryptablePacket(const QuicEncryptedPacket& packet,
EncryptionLevel decryption_level,
bool has_decryption_key) override {
undecryptable_packets_.push_back(packet.Clone());
undecryptable_decryption_levels_.push_back(decryption_level);
undecryptable_has_decryption_keys_.push_back(has_decryption_key);
}
bool OnStreamFrame(const QuicStreamFrame& frame) override {
++frame_count_;
std::string* string_data =
new std::string(frame.data_buffer, frame.data_length);
stream_data_.push_back(absl::WrapUnique(string_data));
stream_frames_.push_back(std::make_unique<QuicStreamFrame>(
frame.stream_id, frame.fin, frame.offset, *string_data));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IS_IETF_STREAM_FRAME(framer_->current_received_frame_type()));
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnCryptoFrame(const QuicCryptoFrame& frame) override {
++frame_count_;
std::string* string_data =
new std::string(frame.data_buffer, frame.data_length);
crypto_data_.push_back(absl::WrapUnique(string_data));
crypto_frames_.push_back(std::make_unique<QuicCryptoFrame>(
frame.level, frame.offset, *string_data));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_EQ(IETF_CRYPTO, framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnAckFrameStart(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time) override {
++frame_count_;
QuicAckFrame ack_frame;
ack_frame.largest_acked = largest_acked;
ack_frame.ack_delay_time = ack_delay_time;
ack_frames_.push_back(std::make_unique<QuicAckFrame>(ack_frame));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_ACK == framer_->current_received_frame_type() ||
IETF_ACK_ECN == framer_->current_received_frame_type() ||
IETF_ACK_RECEIVE_TIMESTAMPS ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnAckRange(QuicPacketNumber start, QuicPacketNumber end) override {
QUICHE_DCHECK(!ack_frames_.empty());
ack_frames_[ack_frames_.size() - 1]->packets.AddRange(start, end);
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_ACK == framer_->current_received_frame_type() ||
IETF_ACK_ECN == framer_->current_received_frame_type() ||
IETF_ACK_RECEIVE_TIMESTAMPS ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnAckTimestamp(QuicPacketNumber packet_number,
QuicTime timestamp) override {
ack_frames_[ack_frames_.size() - 1]->received_packet_times.push_back(
std::make_pair(packet_number, timestamp));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_ACK == framer_->current_received_frame_type() ||
IETF_ACK_ECN == framer_->current_received_frame_type() ||
IETF_ACK_RECEIVE_TIMESTAMPS ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnAckFrameEnd(
QuicPacketNumber ,
const std::optional<QuicEcnCounts>& ) override {
return true;
}
bool OnStopWaitingFrame(const QuicStopWaitingFrame& frame) override {
++frame_count_;
stop_waiting_frames_.push_back(
std::make_unique<QuicStopWaitingFrame>(frame));
EXPECT_EQ(0u, framer_->current_received_frame_type());
return true;
}
bool OnPaddingFrame(const QuicPaddingFrame& frame) override {
padding_frames_.push_back(std::make_unique<QuicPaddingFrame>(frame));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_EQ(IETF_PADDING, framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnPingFrame(const QuicPingFrame& frame) override {
++frame_count_;
ping_frames_.push_back(std::make_unique<QuicPingFrame>(frame));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_EQ(IETF_PING, framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnMessageFrame(const QuicMessageFrame& frame) override {
++frame_count_;
message_frames_.push_back(
std::make_unique<QuicMessageFrame>(frame.data, frame.message_length));
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_EXTENSION_MESSAGE_NO_LENGTH_V99 ==
framer_->current_received_frame_type() ||
IETF_EXTENSION_MESSAGE_V99 ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& frame) override {
++frame_count_;
handshake_done_frames_.push_back(
std::make_unique<QuicHandshakeDoneFrame>(frame));
QUICHE_DCHECK(VersionHasIetfQuicFrames(transport_version_));
EXPECT_EQ(IETF_HANDSHAKE_DONE, framer_->current_received_frame_type());
return true;
}
bool OnAckFrequencyFrame(const QuicAckFrequencyFrame& frame) override {
++frame_count_;
ack_frequency_frames_.emplace_back(
std::make_unique<QuicAckFrequencyFrame>(frame));
QUICHE_DCHECK(VersionHasIetfQuicFrames(transport_version_));
EXPECT_EQ(IETF_ACK_FREQUENCY, framer_->current_received_frame_type());
return true;
}
bool OnResetStreamAtFrame(const QuicResetStreamAtFrame& frame) override {
++frame_count_;
reset_stream_at_frames_.push_back(
std::make_unique<QuicResetStreamAtFrame>(frame));
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
EXPECT_EQ(IETF_RESET_STREAM_AT, framer_->current_received_frame_type());
return true;
}
void OnPacketComplete() override { ++complete_packets_; }
bool OnRstStreamFrame(const QuicRstStreamFrame& frame) override {
rst_stream_frame_ = frame;
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_EQ(IETF_RST_STREAM, framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnConnectionCloseFrame(const QuicConnectionCloseFrame& frame) override {
connection_close_frame_ = frame;
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_NE(GOOGLE_QUIC_CONNECTION_CLOSE, frame.close_type);
if (frame.close_type == IETF_QUIC_TRANSPORT_CONNECTION_CLOSE) {
EXPECT_EQ(IETF_CONNECTION_CLOSE,
framer_->current_received_frame_type());
} else {
EXPECT_EQ(IETF_APPLICATION_CLOSE,
framer_->current_received_frame_type());
}
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnStopSendingFrame(const QuicStopSendingFrame& frame) override {
stop_sending_frame_ = frame;
EXPECT_EQ(IETF_STOP_SENDING, framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
return true;
}
bool OnPathChallengeFrame(const QuicPathChallengeFrame& frame) override {
path_challenge_frame_ = frame;
EXPECT_EQ(IETF_PATH_CHALLENGE, framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
return true;
}
bool OnPathResponseFrame(const QuicPathResponseFrame& frame) override {
path_response_frame_ = frame;
EXPECT_EQ(IETF_PATH_RESPONSE, framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
return true;
}
bool OnGoAwayFrame(const QuicGoAwayFrame& frame) override {
goaway_frame_ = frame;
EXPECT_FALSE(VersionHasIetfQuicFrames(transport_version_));
EXPECT_EQ(0u, framer_->current_received_frame_type());
return true;
}
bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) override {
max_streams_frame_ = frame;
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
EXPECT_TRUE(IETF_MAX_STREAMS_UNIDIRECTIONAL ==
framer_->current_received_frame_type() ||
IETF_MAX_STREAMS_BIDIRECTIONAL ==
framer_->current_received_frame_type());
return true;
}
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) override {
streams_blocked_frame_ = frame;
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
EXPECT_TRUE(IETF_STREAMS_BLOCKED_UNIDIRECTIONAL ==
framer_->current_received_frame_type() ||
IETF_STREAMS_BLOCKED_BIDIRECTIONAL ==
framer_->current_received_frame_type());
return true;
}
bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override {
window_update_frame_ = frame;
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_MAX_DATA == framer_->current_received_frame_type() ||
IETF_MAX_STREAM_DATA ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnBlockedFrame(const QuicBlockedFrame& frame) override {
blocked_frame_ = frame;
if (VersionHasIetfQuicFrames(transport_version_)) {
EXPECT_TRUE(IETF_DATA_BLOCKED == framer_->current_received_frame_type() ||
IETF_STREAM_DATA_BLOCKED ==
framer_->current_received_frame_type());
} else {
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
return true;
}
bool OnNewConnectionIdFrame(const QuicNewConnectionIdFrame& frame) override {
new_connection_id_ = frame;
EXPECT_EQ(IETF_NEW_CONNECTION_ID, framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
return true;
}
bool OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame) override {
EXPECT_EQ(IETF_RETIRE_CONNECTION_ID,
framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
retire_connection_id_ = frame;
return true;
}
bool OnNewTokenFrame(const QuicNewTokenFrame& frame) override {
new_token_ = frame;
EXPECT_EQ(IETF_NEW_TOKEN, framer_->current_received_frame_type());
EXPECT_TRUE(VersionHasIetfQuicFrames(transport_version_));
return true;
}
bool IsValidStatelessResetToken(
const StatelessResetToken& token) const override {
EXPECT_EQ(0u, framer_->current_received_frame_type());
return token == kTestStatelessResetToken;
}
void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& packet) override {
stateless_reset_packet_ =
std::make_unique<QuicIetfStatelessResetPacket>(packet);
EXPECT_EQ(0u, framer_->current_received_frame_type());
}
void OnKeyUpdate(KeyUpdateReason reason) override {
key_update_reasons_.push_back(reason);
}
void OnDecryptedFirstPacketInKeyPhase() override {
decrypted_first_packet_in_key_phase_count_++;
}
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override {
derive_next_key_count_++;
return std::make_unique<StrictTaggingDecrypter>(derive_next_key_count_);
}
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override {
return std::make_unique<TaggingEncrypter>(derive_next_key_count_);
}
void set_framer(QuicFramer* framer) {
framer_ = framer;
transport_version_ = framer->transport_version();
}
size_t key_update_count() const { return key_update_reasons_.size(); }
int error_count_;
int version_mismatch_;
int packet_count_;
int frame_count_;
int complete_packets_;
std::vector<KeyUpdateReason> key_update_reasons_;
int derive_next_key_count_;
int decrypted_first_packet_in_key_phase_count_;
bool accept_packet_;
bool accept_public_header_;
std::unique_ptr<QuicPacketHeader> header_;
std::unique_ptr<QuicIetfStatelessResetPacket> stateless_reset_packet_;
std::unique_ptr<QuicVersionNegotiationPacket> version_negotiation_packet_;
std::unique_ptr<QuicConnectionId> retry_original_connection_id_;
std::unique_ptr<QuicConnectionId> retry_new_connection_id_;
std::unique_ptr<std::string> retry_token_;
std::unique_ptr<std::string> retry_token_integrity_tag_;
std::unique_ptr<std::string> retry_without_tag_;
bool on_retry_packet_called_ = false;
std::vector<std::unique_ptr<QuicStreamFrame>> stream_frames_;
std::vector<std::unique_ptr<QuicCryptoFrame>> crypto_frames_;
std::vector<std::unique_ptr<QuicAckFrame>> ack_frames_;
std::vector<std::unique_ptr<QuicStopWaitingFrame>> stop_waiting_frames_;
std::vector<std::unique_ptr<QuicPaddingFrame>> padding_frames_;
std::vector<std::unique_ptr<QuicPingFrame>> ping_frames_;
std::vector<std::unique_ptr<QuicMessageFrame>> message_frames_;
std::vector<std::unique_ptr<QuicHandshakeDoneFrame>> handshake_done_frames_;
std::vector<std::unique_ptr<QuicAckFrequencyFrame>> ack_frequency_frames_;
std::vector<std::unique_ptr<QuicResetStreamAtFrame>> reset_stream_at_frames_;
std::vector<std::unique_ptr<QuicEncryptedPacket>> coalesced_packets_;
std::vector<std::unique_ptr<QuicEncryptedPacket>> undecryptable_packets_;
std::vector<EncryptionLevel> undecryptable_decryption_levels_;
std::vector<bool> undecryptable_has_decryption_keys_;
QuicRstStreamFrame rst_stream_frame_;
QuicConnectionCloseFrame connection_close_frame_;
QuicStopSendingFrame stop_sending_frame_;
QuicGoAwayFrame goaway_frame_;
QuicPathChallengeFrame path_challenge_frame_;
QuicPathResponseFrame path_response_frame_;
QuicWindowUpdateFrame window_update_frame_;
QuicBlockedFrame blocked_frame_;
QuicStreamsBlockedFrame streams_blocked_frame_;
QuicMaxStreamsFrame max_streams_frame_;
QuicNewConnectionIdFrame new_connection_id_;
QuicRetireConnectionIdFrame retire_connection_id_;
QuicNewTokenFrame new_token_;
std::vector<std::unique_ptr<std::string>> stream_data_;
std::vector<std::unique_ptr<std::string>> crypto_data_;
QuicTransportVersion transport_version_;
QuicFramer* framer_;
};
struct PacketFragment {
std::string error_if_missing;
std::vector<unsigned char> fragment;
};
using PacketFragments = std::vector<struct PacketFragment>;
class QuicFramerTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
QuicFramerTest()
: encrypter_(new test::TestEncrypter()),
decrypter_(new test::TestDecrypter()),
version_(GetParam()),
start_(QuicTime::Zero() + QuicTime::Delta::FromMicroseconds(0x10)),
framer_(AllSupportedVersions(), start_, Perspective::IS_SERVER,
kQuicDefaultConnectionIdLength) {
framer_.set_version(version_);
if (framer_.version().KnowsWhichDecrypterToUse()) {
framer_.InstallDecrypter(ENCRYPTION_INITIAL,
std::unique_ptr<QuicDecrypter>(decrypter_));
} else {
framer_.SetDecrypter(ENCRYPTION_INITIAL,
std::unique_ptr<QuicDecrypter>(decrypter_));
}
framer_.SetEncrypter(ENCRYPTION_INITIAL,
std::unique_ptr<QuicEncrypter>(encrypter_));
framer_.set_visitor(&visitor_);
visitor_.set_framer(&framer_);
}
void SetDecrypterLevel(EncryptionLevel level) {
if (!framer_.version().KnowsWhichDecrypterToUse()) {
return;
}
decrypter_ = new TestDecrypter();
framer_.InstallDecrypter(level, std::unique_ptr<QuicDecrypter>(decrypter_));
}
unsigned char GetQuicVersionByte(int pos) {
return (CreateQuicVersionLabel(version_) >> 8 * (3 - pos)) & 0xff;
}
inline void ReviseFirstByteByVersion(unsigned char packet_ietf[]) {
if (version_.UsesV2PacketTypes() && (packet_ietf[0] >= 0x80)) {
packet_ietf[0] = (packet_ietf[0] + 0x10) | 0xc0;
}
}
inline void ReviseFirstByteByVersion(PacketFragments& packet_ietf) {
ReviseFirstByteByVersion(&packet_ietf[0].fragment[0]);
}
bool CheckEncryption(QuicPacketNumber packet_number, QuicPacket* packet) {
if (packet_number != encrypter_->packet_number_) {
QUIC_LOG(ERROR) << "Encrypted incorrect packet number. expected "
<< packet_number
<< " actual: " << encrypter_->packet_number_;
return false;
}
if (packet->AssociatedData(framer_.transport_version()) !=
encrypter_->associated_data_) {
QUIC_LOG(ERROR) << "Encrypted incorrect associated data. expected "
<< packet->AssociatedData(framer_.transport_version())
<< " actual: " << encrypter_->associated_data_;
return false;
}
if (packet->Plaintext(framer_.transport_version()) !=
encrypter_->plaintext_) {
QUIC_LOG(ERROR) << "Encrypted incorrect plaintext data. expected "
<< packet->Plaintext(framer_.transport_version())
<< " actual: " << encrypter_->plaintext_;
return false;
}
return true;
}
bool CheckDecryption(const QuicEncryptedPacket& encrypted,
bool includes_version,
bool includes_diversification_nonce,
uint8_t destination_connection_id_length,
uint8_t source_connection_id_length) {
return CheckDecryption(
encrypted, includes_version, includes_diversification_nonce,
destination_connection_id_length, source_connection_id_length,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0, 0,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0);
}
bool CheckDecryption(
const QuicEncryptedPacket& encrypted, bool includes_version,
bool includes_diversification_nonce,
uint8_t destination_connection_id_length,
uint8_t source_connection_id_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
size_t retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length) {
if (visitor_.header_->packet_number != decrypter_->packet_number_) {
QUIC_LOG(ERROR) << "Decrypted incorrect packet number. expected "
<< visitor_.header_->packet_number
<< " actual: " << decrypter_->packet_number_;
return false;
}
absl::string_view associated_data =
QuicFramer::GetAssociatedDataFromEncryptedPacket(
framer_.transport_version(), encrypted,
destination_connection_id_length, source_connection_id_length,
includes_version, includes_diversification_nonce,
PACKET_4BYTE_PACKET_NUMBER, retry_token_length_length,
retry_token_length, length_length);
if (associated_data != decrypter_->associated_data_) {
QUIC_LOG(ERROR) << "Decrypted incorrect associated data. expected "
<< absl::BytesToHexString(associated_data) << " actual: "
<< absl::BytesToHexString(decrypter_->associated_data_);
return false;
}
absl::string_view ciphertext(
encrypted.AsStringPiece().substr(GetStartOfEncryptedData(
framer_.transport_version(), destination_connection_id_length,
source_connection_id_length, includes_version,
includes_diversification_nonce, PACKET_4BYTE_PACKET_NUMBER,
retry_token_length_length, retry_token_length, length_length)));
if (ciphertext != decrypter_->ciphertext_) {
QUIC_LOG(ERROR) << "Decrypted incorrect ciphertext data. expected "
<< absl::BytesToHexString(ciphertext) << " actual: "
<< absl::BytesToHexString(decrypter_->ciphertext_) |
238 | cpp | google/quiche | quic_bandwidth | quiche/quic/core/quic_bandwidth.cc | quiche/quic/core/quic_bandwidth_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_BANDWIDTH_H_
#define QUICHE_QUIC_CORE_QUIC_BANDWIDTH_H_
#include <cmath>
#include <cstdint>
#include <limits>
#include <ostream>
#include <string>
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
namespace quic {
class QUICHE_EXPORT QuicBandwidth {
public:
static constexpr QuicBandwidth Zero() { return QuicBandwidth(0); }
static constexpr QuicBandwidth Infinite() {
return QuicBandwidth(std::numeric_limits<int64_t>::max());
}
static constexpr QuicBandwidth FromBitsPerSecond(int64_t bits_per_second) {
return QuicBandwidth(bits_per_second);
}
static constexpr QuicBandwidth FromKBitsPerSecond(int64_t k_bits_per_second) {
return QuicBandwidth(k_bits_per_second * 1000);
}
static constexpr QuicBandwidth FromBytesPerSecond(int64_t bytes_per_second) {
return QuicBandwidth(bytes_per_second * 8);
}
static constexpr QuicBandwidth FromKBytesPerSecond(
int64_t k_bytes_per_second) {
return QuicBandwidth(k_bytes_per_second * 8000);
}
static QuicBandwidth FromBytesAndTimeDelta(QuicByteCount bytes,
QuicTime::Delta delta) {
if (bytes == 0) {
return QuicBandwidth(0);
}
int64_t num_micro_bits = 8 * bytes * kNumMicrosPerSecond;
if (num_micro_bits < delta.ToMicroseconds()) {
return QuicBandwidth(1);
}
return QuicBandwidth(num_micro_bits / delta.ToMicroseconds());
}
int64_t ToBitsPerSecond() const { return bits_per_second_; }
int64_t ToKBitsPerSecond() const { return bits_per_second_ / 1000; }
int64_t ToBytesPerSecond() const { return bits_per_second_ / 8; }
int64_t ToKBytesPerSecond() const { return bits_per_second_ / 8000; }
constexpr QuicByteCount ToBytesPerPeriod(QuicTime::Delta time_period) const {
return bits_per_second_ * time_period.ToMicroseconds() / 8 /
kNumMicrosPerSecond;
}
int64_t ToKBytesPerPeriod(QuicTime::Delta time_period) const {
return bits_per_second_ * time_period.ToMicroseconds() / 8000 /
kNumMicrosPerSecond;
}
bool IsZero() const { return bits_per_second_ == 0; }
bool IsInfinite() const {
return bits_per_second_ == Infinite().ToBitsPerSecond();
}
constexpr QuicTime::Delta TransferTime(QuicByteCount bytes) const {
if (bits_per_second_ == 0) {
return QuicTime::Delta::Zero();
}
return QuicTime::Delta::FromMicroseconds(bytes * 8 * kNumMicrosPerSecond /
bits_per_second_);
}
std::string ToDebuggingValue() const;
private:
explicit constexpr QuicBandwidth(int64_t bits_per_second)
: bits_per_second_(bits_per_second >= 0 ? bits_per_second : 0) {}
int64_t bits_per_second_;
friend constexpr QuicBandwidth operator+(QuicBandwidth lhs,
QuicBandwidth rhs);
friend constexpr QuicBandwidth operator-(QuicBandwidth lhs,
QuicBandwidth rhs);
friend QuicBandwidth operator*(QuicBandwidth lhs, float rhs);
};
inline bool operator==(QuicBandwidth lhs, QuicBandwidth rhs) {
return lhs.ToBitsPerSecond() == rhs.ToBitsPerSecond();
}
inline bool operator!=(QuicBandwidth lhs, QuicBandwidth rhs) {
return !(lhs == rhs);
}
inline bool operator<(QuicBandwidth lhs, QuicBandwidth rhs) {
return lhs.ToBitsPerSecond() < rhs.ToBitsPerSecond();
}
inline bool operator>(QuicBandwidth lhs, QuicBandwidth rhs) {
return rhs < lhs;
}
inline bool operator<=(QuicBandwidth lhs, QuicBandwidth rhs) {
return !(rhs < lhs);
}
inline bool operator>=(QuicBandwidth lhs, QuicBandwidth rhs) {
return !(lhs < rhs);
}
inline constexpr QuicBandwidth operator+(QuicBandwidth lhs, QuicBandwidth rhs) {
return QuicBandwidth(lhs.bits_per_second_ + rhs.bits_per_second_);
}
inline constexpr QuicBandwidth operator-(QuicBandwidth lhs, QuicBandwidth rhs) {
return QuicBandwidth(lhs.bits_per_second_ - rhs.bits_per_second_);
}
inline QuicBandwidth operator*(QuicBandwidth lhs, float rhs) {
return QuicBandwidth(
static_cast<int64_t>(std::llround(lhs.bits_per_second_ * rhs)));
}
inline QuicBandwidth operator*(float lhs, QuicBandwidth rhs) {
return rhs * lhs;
}
inline constexpr QuicByteCount operator*(QuicBandwidth lhs,
QuicTime::Delta rhs) {
return lhs.ToBytesPerPeriod(rhs);
}
inline constexpr QuicByteCount operator*(QuicTime::Delta lhs,
QuicBandwidth rhs) {
return rhs * lhs;
}
inline std::ostream& operator<<(std::ostream& output,
const QuicBandwidth bandwidth) {
output << bandwidth.ToDebuggingValue();
return output;
}
}
#endif
#include "quiche/quic/core/quic_bandwidth.h"
#include <cinttypes>
#include <string>
#include "absl/strings/str_format.h"
#include "absl/strings/string_view.h"
namespace quic {
std::string QuicBandwidth::ToDebuggingValue() const {
if (bits_per_second_ < 80000) {
return absl::StrFormat("%d bits/s (%d bytes/s)", bits_per_second_,
bits_per_second_ / 8);
}
double divisor;
char unit;
if (bits_per_second_ < 8 * 1000 * 1000) {
divisor = 1e3;
unit = 'k';
} else if (bits_per_second_ < INT64_C(8) * 1000 * 1000 * 1000) {
divisor = 1e6;
unit = 'M';
} else {
divisor = 1e9;
unit = 'G';
}
double bits_per_second_with_unit = bits_per_second_ / divisor;
double bytes_per_second_with_unit = bits_per_second_with_unit / 8;
return absl::StrFormat("%.2f %cbits/s (%.2f %cbytes/s)",
bits_per_second_with_unit, unit,
bytes_per_second_with_unit, unit);
}
} | #include "quiche/quic/core/quic_bandwidth.h"
#include <limits>
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
class QuicBandwidthTest : public QuicTest {};
TEST_F(QuicBandwidthTest, FromTo) {
EXPECT_EQ(QuicBandwidth::FromKBitsPerSecond(1),
QuicBandwidth::FromBitsPerSecond(1000));
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1),
QuicBandwidth::FromBytesPerSecond(1000));
EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(8000),
QuicBandwidth::FromBytesPerSecond(1000));
EXPECT_EQ(QuicBandwidth::FromKBitsPerSecond(8),
QuicBandwidth::FromKBytesPerSecond(1));
EXPECT_EQ(0, QuicBandwidth::Zero().ToBitsPerSecond());
EXPECT_EQ(0, QuicBandwidth::Zero().ToKBitsPerSecond());
EXPECT_EQ(0, QuicBandwidth::Zero().ToBytesPerSecond());
EXPECT_EQ(0, QuicBandwidth::Zero().ToKBytesPerSecond());
EXPECT_EQ(1, QuicBandwidth::FromBitsPerSecond(1000).ToKBitsPerSecond());
EXPECT_EQ(1000, QuicBandwidth::FromKBitsPerSecond(1).ToBitsPerSecond());
EXPECT_EQ(1, QuicBandwidth::FromBytesPerSecond(1000).ToKBytesPerSecond());
EXPECT_EQ(1000, QuicBandwidth::FromKBytesPerSecond(1).ToBytesPerSecond());
}
TEST_F(QuicBandwidthTest, Add) {
QuicBandwidth bandwidht_1 = QuicBandwidth::FromKBitsPerSecond(1);
QuicBandwidth bandwidht_2 = QuicBandwidth::FromKBytesPerSecond(1);
EXPECT_EQ(9000, (bandwidht_1 + bandwidht_2).ToBitsPerSecond());
EXPECT_EQ(9000, (bandwidht_2 + bandwidht_1).ToBitsPerSecond());
}
TEST_F(QuicBandwidthTest, Subtract) {
QuicBandwidth bandwidht_1 = QuicBandwidth::FromKBitsPerSecond(1);
QuicBandwidth bandwidht_2 = QuicBandwidth::FromKBytesPerSecond(1);
EXPECT_EQ(7000, (bandwidht_2 - bandwidht_1).ToBitsPerSecond());
}
TEST_F(QuicBandwidthTest, TimeDelta) {
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1000),
QuicBandwidth::FromBytesAndTimeDelta(
1000, QuicTime::Delta::FromMilliseconds(1)));
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(10),
QuicBandwidth::FromBytesAndTimeDelta(
1000, QuicTime::Delta::FromMilliseconds(100)));
EXPECT_EQ(QuicBandwidth::Zero(), QuicBandwidth::FromBytesAndTimeDelta(
0, QuicTime::Delta::FromSeconds(9)));
EXPECT_EQ(
QuicBandwidth::FromBitsPerSecond(1),
QuicBandwidth::FromBytesAndTimeDelta(1, QuicTime::Delta::FromSeconds(9)));
}
TEST_F(QuicBandwidthTest, Scale) {
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(500),
QuicBandwidth::FromKBytesPerSecond(1000) * 0.5f);
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(750),
0.75f * QuicBandwidth::FromKBytesPerSecond(1000));
EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1250),
QuicBandwidth::FromKBytesPerSecond(1000) * 1.25f);
EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(5),
QuicBandwidth::FromBitsPerSecond(9) * 0.5f);
EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(2),
QuicBandwidth::FromBitsPerSecond(12) * 0.2f);
}
TEST_F(QuicBandwidthTest, BytesPerPeriod) {
EXPECT_EQ(2000, QuicBandwidth::FromKBytesPerSecond(2000).ToBytesPerPeriod(
QuicTime::Delta::FromMilliseconds(1)));
EXPECT_EQ(2, QuicBandwidth::FromKBytesPerSecond(2000).ToKBytesPerPeriod(
QuicTime::Delta::FromMilliseconds(1)));
EXPECT_EQ(200000, QuicBandwidth::FromKBytesPerSecond(2000).ToBytesPerPeriod(
QuicTime::Delta::FromMilliseconds(100)));
EXPECT_EQ(200, QuicBandwidth::FromKBytesPerSecond(2000).ToKBytesPerPeriod(
QuicTime::Delta::FromMilliseconds(100)));
EXPECT_EQ(200, QuicBandwidth::FromBitsPerSecond(1599).ToBytesPerPeriod(
QuicTime::Delta::FromMilliseconds(1001)));
EXPECT_EQ(200, QuicBandwidth::FromBitsPerSecond(1599).ToKBytesPerPeriod(
QuicTime::Delta::FromSeconds(1001)));
}
TEST_F(QuicBandwidthTest, TransferTime) {
EXPECT_EQ(QuicTime::Delta::FromSeconds(1),
QuicBandwidth::FromKBytesPerSecond(1).TransferTime(1000));
EXPECT_EQ(QuicTime::Delta::Zero(), QuicBandwidth::Zero().TransferTime(1000));
}
TEST_F(QuicBandwidthTest, RelOps) {
const QuicBandwidth b1 = QuicBandwidth::FromKBitsPerSecond(1);
const QuicBandwidth b2 = QuicBandwidth::FromKBytesPerSecond(2);
EXPECT_EQ(b1, b1);
EXPECT_NE(b1, b2);
EXPECT_LT(b1, b2);
EXPECT_GT(b2, b1);
EXPECT_LE(b1, b1);
EXPECT_LE(b1, b2);
EXPECT_GE(b1, b1);
EXPECT_GE(b2, b1);
}
TEST_F(QuicBandwidthTest, DebuggingValue) {
EXPECT_EQ("128 bits/s (16 bytes/s)",
QuicBandwidth::FromBytesPerSecond(16).ToDebuggingValue());
EXPECT_EQ("4096 bits/s (512 bytes/s)",
QuicBandwidth::FromBytesPerSecond(512).ToDebuggingValue());
QuicBandwidth bandwidth = QuicBandwidth::FromBytesPerSecond(1000 * 50);
EXPECT_EQ("400.00 kbits/s (50.00 kbytes/s)", bandwidth.ToDebuggingValue());
bandwidth = bandwidth * 1000;
EXPECT_EQ("400.00 Mbits/s (50.00 Mbytes/s)", bandwidth.ToDebuggingValue());
bandwidth = bandwidth * 1000;
EXPECT_EQ("400.00 Gbits/s (50.00 Gbytes/s)", bandwidth.ToDebuggingValue());
}
TEST_F(QuicBandwidthTest, SpecialValues) {
EXPECT_EQ(0, QuicBandwidth::Zero().ToBitsPerSecond());
EXPECT_EQ(std::numeric_limits<int64_t>::max(),
QuicBandwidth::Infinite().ToBitsPerSecond());
EXPECT_TRUE(QuicBandwidth::Zero().IsZero());
EXPECT_FALSE(QuicBandwidth::Zero().IsInfinite());
EXPECT_TRUE(QuicBandwidth::Infinite().IsInfinite());
EXPECT_FALSE(QuicBandwidth::Infinite().IsZero());
}
}
} |
239 | cpp | google/quiche | quic_control_frame_manager | quiche/quic/core/quic_control_frame_manager.cc | quiche/quic/core/quic_control_frame_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONTROL_FRAME_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_CONTROL_FRAME_MANAGER_H_
#include <cstdint>
#include <string>
#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/quiche_circular_deque.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
class QuicSession;
namespace test {
class QuicControlFrameManagerPeer;
}
class QUICHE_EXPORT QuicControlFrameManager {
public:
class QUICHE_EXPORT DelegateInterface {
public:
virtual ~DelegateInterface() = default;
virtual void OnControlFrameManagerError(QuicErrorCode error_code,
std::string error_details) = 0;
virtual bool WriteControlFrame(const QuicFrame& frame,
TransmissionType type) = 0;
};
explicit QuicControlFrameManager(QuicSession* session);
QuicControlFrameManager(const QuicControlFrameManager& other) = delete;
QuicControlFrameManager(QuicControlFrameManager&& other) = delete;
~QuicControlFrameManager();
void WriteOrBufferRstStream(QuicControlFrameId id, QuicResetStreamError error,
QuicStreamOffset bytes_written);
void WriteOrBufferGoAway(QuicErrorCode error,
QuicStreamId last_good_stream_id,
const std::string& reason);
void WriteOrBufferWindowUpdate(QuicStreamId id, QuicStreamOffset byte_offset);
void WriteOrBufferBlocked(QuicStreamId id, QuicStreamOffset byte_offset);
void WriteOrBufferStreamsBlocked(QuicStreamCount count, bool unidirectional);
void WriteOrBufferMaxStreams(QuicStreamCount count, bool unidirectional);
void WriteOrBufferStopSending(QuicResetStreamError error,
QuicStreamId stream_id);
void WriteOrBufferHandshakeDone();
void WriteOrBufferAckFrequency(
const QuicAckFrequencyFrame& ack_frequency_frame);
void WriteOrBufferNewConnectionId(
const QuicConnectionId& connection_id, uint64_t sequence_number,
uint64_t retire_prior_to,
const StatelessResetToken& stateless_reset_token);
void WriteOrBufferRetireConnectionId(uint64_t sequence_number);
void WriteOrBufferNewToken(absl::string_view token);
bool OnControlFrameAcked(const QuicFrame& frame);
void OnControlFrameLost(const QuicFrame& frame);
void OnCanWrite();
bool RetransmitControlFrame(const QuicFrame& frame, TransmissionType type);
bool IsControlFrameOutstanding(const QuicFrame& frame) const;
bool HasPendingRetransmission() const;
bool WillingToWrite() const;
size_t NumBufferedMaxStreams() const;
private:
friend class test::QuicControlFrameManagerPeer;
void WriteBufferedFrames();
void OnControlFrameSent(const QuicFrame& frame);
void WritePendingRetransmission();
bool OnControlFrameIdAcked(QuicControlFrameId id);
QuicFrame NextPendingRetransmission() const;
bool HasBufferedFrames() const;
void WriteOrBufferQuicFrame(QuicFrame frame);
quiche::QuicheCircularDeque<QuicFrame> control_frames_;
QuicControlFrameId last_control_frame_id_;
QuicControlFrameId least_unacked_;
QuicControlFrameId least_unsent_;
quiche::QuicheLinkedHashMap<QuicControlFrameId, bool>
pending_retransmissions_;
DelegateInterface* delegate_;
absl::flat_hash_map<QuicStreamId, QuicControlFrameId> window_update_frames_;
size_t num_buffered_max_stream_frames_;
};
}
#endif
#include "quiche/quic/core/quic_control_frame_manager.h"
#include <string>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/frames/quic_new_connection_id_frame.h"
#include "quiche/quic/core/frames/quic_retire_connection_id_frame.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
namespace {
const size_t kMaxNumControlFrames = 1000;
}
QuicControlFrameManager::QuicControlFrameManager(QuicSession* session)
: last_control_frame_id_(kInvalidControlFrameId),
least_unacked_(1),
least_unsent_(1),
delegate_(session),
num_buffered_max_stream_frames_(0) {}
QuicControlFrameManager::~QuicControlFrameManager() {
while (!control_frames_.empty()) {
DeleteFrame(&control_frames_.front());
control_frames_.pop_front();
}
}
void QuicControlFrameManager::WriteOrBufferQuicFrame(QuicFrame frame) {
const bool had_buffered_frames = HasBufferedFrames();
control_frames_.emplace_back(frame);
if (control_frames_.size() > kMaxNumControlFrames) {
delegate_->OnControlFrameManagerError(
QUIC_TOO_MANY_BUFFERED_CONTROL_FRAMES,
absl::StrCat("More than ", kMaxNumControlFrames,
"buffered control frames, least_unacked: ", least_unacked_,
", least_unsent_: ", least_unsent_));
return;
}
if (had_buffered_frames) {
return;
}
WriteBufferedFrames();
}
void QuicControlFrameManager::WriteOrBufferRstStream(
QuicStreamId id, QuicResetStreamError error,
QuicStreamOffset bytes_written) {
QUIC_DVLOG(1) << "Writing RST_STREAM_FRAME";
WriteOrBufferQuicFrame((QuicFrame(new QuicRstStreamFrame(
++last_control_frame_id_, id, error, bytes_written))));
}
void QuicControlFrameManager::WriteOrBufferGoAway(
QuicErrorCode error, QuicStreamId last_good_stream_id,
const std::string& reason) {
QUIC_DVLOG(1) << "Writing GOAWAY_FRAME";
WriteOrBufferQuicFrame(QuicFrame(new QuicGoAwayFrame(
++last_control_frame_id_, error, last_good_stream_id, reason)));
}
void QuicControlFrameManager::WriteOrBufferWindowUpdate(
QuicStreamId id, QuicStreamOffset byte_offset) {
QUIC_DVLOG(1) << "Writing WINDOW_UPDATE_FRAME";
WriteOrBufferQuicFrame(QuicFrame(
QuicWindowUpdateFrame(++last_control_frame_id_, id, byte_offset)));
}
void QuicControlFrameManager::WriteOrBufferBlocked(
QuicStreamId id, QuicStreamOffset byte_offset) {
QUIC_DVLOG(1) << "Writing BLOCKED_FRAME";
WriteOrBufferQuicFrame(
QuicFrame(QuicBlockedFrame(++last_control_frame_id_, id, byte_offset)));
}
void QuicControlFrameManager::WriteOrBufferStreamsBlocked(QuicStreamCount count,
bool unidirectional) {
QUIC_DVLOG(1) << "Writing STREAMS_BLOCKED Frame";
QUIC_CODE_COUNT(quic_streams_blocked_transmits);
WriteOrBufferQuicFrame(QuicFrame(QuicStreamsBlockedFrame(
++last_control_frame_id_, count, unidirectional)));
}
void QuicControlFrameManager::WriteOrBufferMaxStreams(QuicStreamCount count,
bool unidirectional) {
QUIC_DVLOG(1) << "Writing MAX_STREAMS Frame";
QUIC_CODE_COUNT(quic_max_streams_transmits);
WriteOrBufferQuicFrame(QuicFrame(
QuicMaxStreamsFrame(++last_control_frame_id_, count, unidirectional)));
++num_buffered_max_stream_frames_;
}
void QuicControlFrameManager::WriteOrBufferStopSending(
QuicResetStreamError error, QuicStreamId stream_id) {
QUIC_DVLOG(1) << "Writing STOP_SENDING_FRAME";
WriteOrBufferQuicFrame(QuicFrame(
QuicStopSendingFrame(++last_control_frame_id_, stream_id, error)));
}
void QuicControlFrameManager::WriteOrBufferHandshakeDone() {
QUIC_DVLOG(1) << "Writing HANDSHAKE_DONE";
WriteOrBufferQuicFrame(
QuicFrame(QuicHandshakeDoneFrame(++last_control_frame_id_)));
}
void QuicControlFrameManager::WriteOrBufferAckFrequency(
const QuicAckFrequencyFrame& ack_frequency_frame) {
QUIC_DVLOG(1) << "Writing ACK_FREQUENCY frame";
QuicControlFrameId control_frame_id = ++last_control_frame_id_;
WriteOrBufferQuicFrame(
QuicFrame(new QuicAckFrequencyFrame(control_frame_id,
control_frame_id,
ack_frequency_frame.packet_tolerance,
ack_frequency_frame.max_ack_delay)));
}
void QuicControlFrameManager::WriteOrBufferNewConnectionId(
const QuicConnectionId& connection_id, uint64_t sequence_number,
uint64_t retire_prior_to,
const StatelessResetToken& stateless_reset_token) {
QUIC_DVLOG(1) << "Writing NEW_CONNECTION_ID frame";
WriteOrBufferQuicFrame(QuicFrame(new QuicNewConnectionIdFrame(
++last_control_frame_id_, connection_id, sequence_number,
stateless_reset_token, retire_prior_to)));
}
void QuicControlFrameManager::WriteOrBufferRetireConnectionId(
uint64_t sequence_number) {
QUIC_DVLOG(1) << "Writing RETIRE_CONNECTION_ID frame";
WriteOrBufferQuicFrame(QuicFrame(new QuicRetireConnectionIdFrame(
++last_control_frame_id_, sequence_number)));
}
void QuicControlFrameManager::WriteOrBufferNewToken(absl::string_view token) {
QUIC_DVLOG(1) << "Writing NEW_TOKEN frame";
WriteOrBufferQuicFrame(
QuicFrame(new QuicNewTokenFrame(++last_control_frame_id_, token)));
}
void QuicControlFrameManager::OnControlFrameSent(const QuicFrame& frame) {
QuicControlFrameId id = GetControlFrameId(frame);
if (id == kInvalidControlFrameId) {
QUIC_BUG(quic_bug_12727_1)
<< "Send or retransmit a control frame with invalid control frame id";
return;
}
if (frame.type == WINDOW_UPDATE_FRAME) {
QuicStreamId stream_id = frame.window_update_frame.stream_id;
if (window_update_frames_.contains(stream_id) &&
id > window_update_frames_[stream_id]) {
OnControlFrameIdAcked(window_update_frames_[stream_id]);
}
window_update_frames_[stream_id] = id;
}
if (pending_retransmissions_.contains(id)) {
pending_retransmissions_.erase(id);
return;
}
if (id > least_unsent_) {
QUIC_BUG(quic_bug_10517_1)
<< "Try to send control frames out of order, id: " << id
<< " least_unsent: " << least_unsent_;
delegate_->OnControlFrameManagerError(
QUIC_INTERNAL_ERROR, "Try to send control frames out of order");
return;
}
++least_unsent_;
}
bool QuicControlFrameManager::OnControlFrameAcked(const QuicFrame& frame) {
QuicControlFrameId id = GetControlFrameId(frame);
if (!OnControlFrameIdAcked(id)) {
return false;
}
if (frame.type == WINDOW_UPDATE_FRAME) {
QuicStreamId stream_id = frame.window_update_frame.stream_id;
if (window_update_frames_.contains(stream_id) &&
window_update_frames_[stream_id] == id) {
window_update_frames_.erase(stream_id);
}
}
if (frame.type == MAX_STREAMS_FRAME) {
if (num_buffered_max_stream_frames_ == 0) {
QUIC_BUG(invalid_num_buffered_max_stream_frames);
} else {
--num_buffered_max_stream_frames_;
}
}
return true;
}
void QuicControlFrameManager::OnControlFrameLost(const QuicFrame& frame) {
QuicControlFrameId id = GetControlFrameId(frame);
if (id == kInvalidControlFrameId) {
return;
}
if (id >= least_unsent_) {
QUIC_BUG(quic_bug_10517_2) << "Try to mark unsent control frame as lost";
delegate_->OnControlFrameManagerError(
QUIC_INTERNAL_ERROR, "Try to mark unsent control frame as lost");
return;
}
if (id < least_unacked_ ||
GetControlFrameId(control_frames_.at(id - least_unacked_)) ==
kInvalidControlFrameId) {
return;
}
if (!pending_retransmissions_.contains(id)) {
pending_retransmissions_[id] = true;
QUIC_BUG_IF(quic_bug_12727_2,
pending_retransmissions_.size() > control_frames_.size())
<< "least_unacked_: " << least_unacked_
<< ", least_unsent_: " << least_unsent_;
}
}
bool QuicControlFrameManager::IsControlFrameOutstanding(
const QuicFrame& frame) const {
QuicControlFrameId id = GetControlFrameId(frame);
if (id == kInvalidControlFrameId) {
return false;
}
return id < least_unacked_ + control_frames_.size() && id >= least_unacked_ &&
GetControlFrameId(control_frames_.at(id - least_unacked_)) !=
kInvalidControlFrameId;
}
bool QuicControlFrameManager::HasPendingRetransmission() const {
return !pending_retransmissions_.empty();
}
bool QuicControlFrameManager::WillingToWrite() const {
return HasPendingRetransmission() || HasBufferedFrames();
}
size_t QuicControlFrameManager::NumBufferedMaxStreams() const {
return num_buffered_max_stream_frames_;
}
QuicFrame QuicControlFrameManager::NextPendingRetransmission() const {
QUIC_BUG_IF(quic_bug_12727_3, pending_retransmissions_.empty())
<< "Unexpected call to NextPendingRetransmission() with empty pending "
<< "retransmission list.";
QuicControlFrameId id = pending_retransmissions_.begin()->first;
return control_frames_.at(id - least_unacked_);
}
void QuicControlFrameManager::OnCanWrite() {
if (HasPendingRetransmission()) {
WritePendingRetransmission();
return;
}
WriteBufferedFrames();
}
bool QuicControlFrameManager::RetransmitControlFrame(const QuicFrame& frame,
TransmissionType type) {
QUICHE_DCHECK(type == PTO_RETRANSMISSION);
QuicControlFrameId id = GetControlFrameId(frame);
if (id == kInvalidControlFrameId) {
return true;
}
if (id >= least_unsent_) {
QUIC_BUG(quic_bug_10517_3) << "Try to retransmit unsent control frame";
delegate_->OnControlFrameManagerError(
QUIC_INTERNAL_ERROR, "Try to retransmit unsent control frame");
return false;
}
if (id < least_unacked_ ||
GetControlFrameId(control_frames_.at(id - least_unacked_)) ==
kInvalidControlFrameId) {
return true;
}
QuicFrame copy = CopyRetransmittableControlFrame(frame);
QUIC_DVLOG(1) << "control frame manager is forced to retransmit frame: "
<< frame;
if (delegate_->WriteControlFrame(copy, type)) {
return true;
}
DeleteFrame(©);
return false;
}
void QuicControlFrameManager::WriteBufferedFrames() {
while (HasBufferedFrames()) {
QuicFrame frame_to_send =
control_frames_.at(least_unsent_ - least_unacked_);
QuicFrame copy = CopyRetransmittableControlFrame(frame_to_send);
if (!delegate_->WriteControlFrame(copy, NOT_RETRANSMISSION)) {
DeleteFrame(©);
break;
}
OnControlFrameSent(frame_to_send);
}
}
void QuicControlFrameManager::WritePendingRetransmission() {
while (HasPendingRetransmission()) {
QuicFrame pending = NextPendingRetransmission();
QuicFrame copy = CopyRetransmittableControlFrame(pending);
if (!delegate_->WriteControlFrame(copy, LOSS_RETRANSMISSION)) {
DeleteFrame(©);
break;
}
OnControlFrameSent(pending);
}
}
bool QuicControlFrameManager::OnControlFrameIdAcked(QuicControlFrameId id) {
if (id == kInvalidControlFrameId) {
return false;
}
if (id >= least_unsent_) {
QUIC_BUG(quic_bug_10517_4) << "Try to ack unsent control frame";
delegate_->OnControlFrameManagerError(QUIC_INTERNAL_ERROR,
"Try to ack unsent control frame");
return false;
}
if (id < least_unacked_ ||
GetControlFrameId(control_frames_.at(id - least_unacked_)) ==
kInvalidControlFrameId) {
return false;
}
SetControlFrameId(kInvalidControlFrameId,
&control_frames_.at(id - least_unacked_));
pending_retransmissions_.erase(id);
while (!control_frames_.empty() &&
GetControlFrameId(control_frames_.front()) == kInvalidControlFrameId) {
DeleteFrame(&control_frames_.front());
control_frames_.pop_front();
++least_unacked_;
}
return true;
}
bool QuicControlFrameManager::HasBufferedFrames() const {
return least_unsent_ < least_unacked_ + control_frames_.size();
}
} | #include "quiche/quic/core/quic_control_frame_manager.h"
#include <memory>
#include <utility>
#include <vector>
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_retire_connection_id_frame.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::InSequence;
using testing::Invoke;
using testing::Return;
using testing::StrictMock;
namespace quic {
namespace test {
class QuicControlFrameManagerPeer {
public:
static size_t QueueSize(QuicControlFrameManager* manager) {
return manager->control_frames_.size();
}
};
namespace {
const QuicStreamId kTestStreamId = 5;
const QuicRstStreamErrorCode kTestStopSendingCode =
QUIC_STREAM_ENCODER_STREAM_ERROR;
class QuicControlFrameManagerTest : public QuicTest {
public:
QuicControlFrameManagerTest()
: connection_(new MockQuicConnection(&helper_, &alarm_factory_,
Perspective::IS_SERVER)),
session_(std::make_unique<StrictMock<MockQuicSession>>(connection_)),
manager_(std::make_unique<QuicControlFrameManager>(session_.get())) {
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
}
protected:
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
MockQuicConnection* connection_;
std::unique_ptr<StrictMock<MockQuicSession>> session_;
std::unique_ptr<QuicControlFrameManager> manager_;
};
TEST_F(QuicControlFrameManagerTest, InitialState) {
EXPECT_EQ(0u, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_FALSE(manager_->HasPendingRetransmission());
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, WriteOrBufferRstStream) {
QuicRstStreamFrame rst_stream = {1, kTestStreamId, QUIC_STREAM_CANCELLED, 0};
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(
[&rst_stream](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(RST_STREAM_FRAME, frame.type);
EXPECT_EQ(rst_stream, *frame.rst_stream_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferRstStream(
rst_stream.stream_id,
QuicResetStreamError::FromInternal(rst_stream.error_code),
rst_stream.byte_offset);
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&rst_stream)));
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, WriteOrBufferGoAway) {
QuicGoAwayFrame goaway = {1, QUIC_PEER_GOING_AWAY, kTestStreamId,
"Going away."};
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&goaway](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(GOAWAY_FRAME, frame.type);
EXPECT_EQ(goaway, *frame.goaway_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferGoAway(goaway.error_code, goaway.last_good_stream_id,
goaway.reason_phrase);
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&goaway)));
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, WriteOrBufferWindowUpdate) {
QuicWindowUpdateFrame window_update = {1, kTestStreamId, 100};
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(
[&window_update](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(WINDOW_UPDATE_FRAME, frame.type);
EXPECT_EQ(window_update, frame.window_update_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferWindowUpdate(window_update.stream_id,
window_update.max_data);
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(window_update)));
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, WriteOrBufferBlocked) {
QuicBlockedFrame blocked = {1, kTestStreamId, 10};
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&blocked](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(BLOCKED_FRAME, frame.type);
EXPECT_EQ(blocked, frame.blocked_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferBlocked(blocked.stream_id, blocked.offset);
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(blocked)));
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, WriteOrBufferStopSending) {
QuicStopSendingFrame stop_sending = {1, kTestStreamId, kTestStopSendingCode};
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(
[&stop_sending](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(STOP_SENDING_FRAME, frame.type);
EXPECT_EQ(stop_sending, frame.stop_sending_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferStopSending(
QuicResetStreamError::FromInternal(stop_sending.error_code),
stop_sending.stream_id);
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(stop_sending)));
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, BufferWhenWriteControlFrameReturnsFalse) {
QuicBlockedFrame blocked = {1, kTestStreamId, 0};
EXPECT_CALL(*session_, WriteControlFrame(_, _)).WillOnce(Return(false));
manager_->WriteOrBufferBlocked(blocked.stream_id, blocked.offset);
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(blocked)));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, BufferThenSendThenBuffer) {
InSequence s;
QuicBlockedFrame frame1 = {1, kTestStreamId, 0};
QuicBlockedFrame frame2 = {2, kTestStreamId + 1, 1};
EXPECT_CALL(*session_, WriteControlFrame(_, _)).WillOnce(Return(false));
manager_->WriteOrBufferBlocked(frame1.stream_id, frame1.offset);
manager_->WriteOrBufferBlocked(frame2.stream_id, frame2.offset);
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame1)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame2)));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
EXPECT_CALL(*session_, WriteControlFrame(_, _)).WillOnce(Return(false));
manager_->OnCanWrite();
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, OnControlFrameAcked) {
QuicRstStreamFrame frame1 = {1, kTestStreamId, QUIC_STREAM_CANCELLED, 0};
QuicGoAwayFrame frame2 = {2, QUIC_PEER_GOING_AWAY, kTestStreamId,
"Going away."};
QuicWindowUpdateFrame frame3 = {3, kTestStreamId, 100};
QuicBlockedFrame frame4 = {4, kTestStreamId, 0};
QuicStopSendingFrame frame5 = {5, kTestStreamId, kTestStopSendingCode};
InSequence s;
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(5)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferRstStream(
frame1.stream_id, QuicResetStreamError::FromInternal(frame1.error_code),
frame1.byte_offset);
manager_->WriteOrBufferGoAway(frame2.error_code, frame2.last_good_stream_id,
frame2.reason_phrase);
manager_->WriteOrBufferWindowUpdate(frame3.stream_id, frame3.max_data);
manager_->WriteOrBufferBlocked(frame4.stream_id, frame4.offset);
manager_->WriteOrBufferStopSending(
QuicResetStreamError::FromInternal(frame5.error_code), frame5.stream_id);
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&frame1)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&frame2)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame3)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame4)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame5)));
EXPECT_FALSE(manager_->HasPendingRetransmission());
EXPECT_TRUE(manager_->OnControlFrameAcked(QuicFrame(frame3)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(frame3)));
EXPECT_EQ(5, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->OnControlFrameAcked(QuicFrame(&frame2)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(&frame2)));
EXPECT_EQ(5, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->OnControlFrameAcked(QuicFrame(&frame1)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(&frame1)));
EXPECT_EQ(2, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_FALSE(manager_->OnControlFrameAcked(QuicFrame(&frame2)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(&frame1)));
EXPECT_EQ(2, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->OnControlFrameAcked(QuicFrame(frame4)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(frame4)));
EXPECT_EQ(1, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
EXPECT_TRUE(manager_->OnControlFrameAcked(QuicFrame(frame5)));
EXPECT_FALSE(manager_->IsControlFrameOutstanding(QuicFrame(frame5)));
EXPECT_EQ(0, QuicControlFrameManagerPeer::QueueSize(manager_.get()));
}
TEST_F(QuicControlFrameManagerTest, OnControlFrameLost) {
QuicRstStreamFrame frame1 = {1, kTestStreamId, QUIC_STREAM_CANCELLED, 0};
QuicGoAwayFrame frame2 = {2, QUIC_PEER_GOING_AWAY, kTestStreamId,
"Going away."};
QuicWindowUpdateFrame frame3 = {3, kTestStreamId, 100};
QuicBlockedFrame frame4 = {4, kTestStreamId, 0};
QuicStopSendingFrame frame5 = {5, kTestStreamId, kTestStopSendingCode};
InSequence s;
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(3)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferRstStream(
frame1.stream_id, QuicResetStreamError::FromInternal(frame1.error_code),
frame1.byte_offset);
manager_->WriteOrBufferGoAway(frame2.error_code, frame2.last_good_stream_id,
frame2.reason_phrase);
manager_->WriteOrBufferWindowUpdate(frame3.stream_id, frame3.max_data);
EXPECT_CALL(*session_, WriteControlFrame(_, _)).WillOnce(Return(false));
manager_->WriteOrBufferBlocked(frame4.stream_id, frame4.offset);
manager_->WriteOrBufferStopSending(
QuicResetStreamError::FromInternal(frame5.error_code), frame5.stream_id);
manager_->OnControlFrameLost(QuicFrame(&frame1));
manager_->OnControlFrameLost(QuicFrame(&frame2));
manager_->OnControlFrameLost(QuicFrame(frame3));
EXPECT_TRUE(manager_->HasPendingRetransmission());
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&frame1)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(&frame2)));
EXPECT_TRUE(manager_->IsControlFrameOutstanding(QuicFrame(frame3)));
manager_->OnControlFrameAcked(QuicFrame(&frame2));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame1](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(RST_STREAM_FRAME, frame.type);
EXPECT_EQ(frame1, *frame.rst_stream_frame);
ClearControlFrame(frame);
return true;
}));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame3](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(WINDOW_UPDATE_FRAME, frame.type);
EXPECT_EQ(frame3, frame.window_update_frame);
ClearControlFrame(frame);
return true;
}));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->HasPendingRetransmission());
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame4](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(BLOCKED_FRAME, frame.type);
EXPECT_EQ(frame4, frame.blocked_frame);
ClearControlFrame(frame);
return true;
}));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame5](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(STOP_SENDING_FRAME, frame.type);
EXPECT_EQ(frame5, frame.stop_sending_frame);
ClearControlFrame(frame);
return true;
}));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, RetransmitControlFrame) {
QuicRstStreamFrame frame1 = {1, kTestStreamId, QUIC_STREAM_CANCELLED, 0};
QuicGoAwayFrame frame2 = {2, QUIC_PEER_GOING_AWAY, kTestStreamId,
"Going away."};
QuicWindowUpdateFrame frame3 = {3, kTestStreamId, 100};
QuicBlockedFrame frame4 = {4, kTestStreamId, 0};
InSequence s;
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(4)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferRstStream(
frame1.stream_id, QuicResetStreamError::FromInternal(frame1.error_code),
frame1.byte_offset);
manager_->WriteOrBufferGoAway(frame2.error_code, frame2.last_good_stream_id,
frame2.reason_phrase);
manager_->WriteOrBufferWindowUpdate(frame3.stream_id, frame3.max_data);
manager_->WriteOrBufferBlocked(frame4.stream_id, frame4.offset);
manager_->OnControlFrameAcked(QuicFrame(&frame2));
EXPECT_CALL(*session_, WriteControlFrame(_, _)).Times(0);
EXPECT_TRUE(
manager_->RetransmitControlFrame(QuicFrame(&frame2), PTO_RETRANSMISSION));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame3](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(WINDOW_UPDATE_FRAME, frame.type);
EXPECT_EQ(frame3, frame.window_update_frame);
ClearControlFrame(frame);
return true;
}));
EXPECT_TRUE(
manager_->RetransmitControlFrame(QuicFrame(frame3), PTO_RETRANSMISSION));
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(
Invoke([&frame4](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(BLOCKED_FRAME, frame.type);
EXPECT_EQ(frame4, frame.blocked_frame);
return false;
}));
EXPECT_FALSE(
manager_->RetransmitControlFrame(QuicFrame(frame4), PTO_RETRANSMISSION));
}
TEST_F(QuicControlFrameManagerTest, SendAndAckAckFrequencyFrame) {
QuicAckFrequencyFrame frame_to_send;
frame_to_send.packet_tolerance = 10;
frame_to_send.max_ack_delay = QuicTime::Delta::FromMilliseconds(24);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferAckFrequency(frame_to_send);
QuicAckFrequencyFrame expected_ack_frequency = frame_to_send;
expected_ack_frequency.control_frame_id = 1;
expected_ack_frequency.sequence_number = 1;
EXPECT_TRUE(
manager_->OnControlFrameAcked(QuicFrame(&expected_ack_frequency)));
}
TEST_F(QuicControlFrameManagerTest, NewAndRetireConnectionIdFrames) {
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
QuicNewConnectionIdFrame new_connection_id_frame(
1, TestConnectionId(3), 1,
{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1}, 1);
manager_->WriteOrBufferNewConnectionId(
new_connection_id_frame.connection_id,
new_connection_id_frame.sequence_number,
new_connection_id_frame.retire_prior_to,
new_connection_id_frame.stateless_reset_token);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
QuicRetireConnectionIdFrame retire_connection_id_frame(2,
0);
manager_->WriteOrBufferRetireConnectionId(
retire_connection_id_frame.sequence_number);
EXPECT_TRUE(
manager_->OnControlFrameAcked(QuicFrame(&new_connection_id_frame)));
EXPECT_TRUE(
manager_->OnControlFrameAcked(QuicFrame(&retire_connection_id_frame)));
}
TEST_F(QuicControlFrameManagerTest, DonotRetransmitOldWindowUpdates) {
QuicWindowUpdateFrame window_update1(1, kTestStreamId, 200);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferWindowUpdate(window_update1.stream_id,
window_update1.max_data);
QuicWindowUpdateFrame window_update2(2, kTestStreamId, 300);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferWindowUpdate(window_update2.stream_id,
window_update2.max_data);
manager_->OnControlFrameLost(QuicFrame(window_update1));
manager_->OnControlFrameLost(QuicFrame(window_update2));
EXPECT_TRUE(manager_->HasPendingRetransmission());
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(
[&window_update2](const QuicFrame& frame, TransmissionType ) {
EXPECT_EQ(WINDOW_UPDATE_FRAME, frame.type);
EXPECT_EQ(window_update2, frame.window_update_frame);
ClearControlFrame(frame);
return true;
}));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->HasPendingRetransmission());
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, RetransmitWindowUpdateOfDifferentStreams) {
QuicWindowUpdateFrame window_update1(1, kTestStreamId + 2, 200);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferWindowUpdate(window_update1.stream_id,
window_update1.max_data);
QuicWindowUpdateFrame window_update2(2, kTestStreamId + 4, 300);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke(&ClearControlFrameWithTransmissionType));
manager_->WriteOrBufferWindowUpdate(window_update2.stream_id,
window_update2.max_data);
manager_->OnControlFrameLost(QuicFrame(window_update1));
manager_->OnControlFrameLost(QuicFrame(window_update2));
EXPECT_TRUE(manager_->HasPendingRetransmission());
EXPECT_TRUE(manager_->WillingToWrite());
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(2)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
manager_->OnCanWrite();
EXPECT_FALSE(manager_->HasPendingRetransmission());
EXPECT_FALSE(manager_->WillingToWrite());
}
TEST_F(QuicControlFrameManagerTest, TooManyBufferedControlFrames) {
EXPECT_CALL(*session_, WriteControlFrame(_, _)).WillOnce(Return(false));
for (size_t i = 0; i < 1000; ++i) {
manager_->WriteOrBufferRstStream(
kTestStreamId,
QuicResetStreamError::FromInternal(QUIC_STREAM_CANCELLED), 0);
}
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_TOO_MANY_BUFFERED_CONTROL_FRAMES, _,
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET));
manager_->WriteOrBufferRstStream(
kTestStreamId, QuicResetStreamError::FromInternal(QUIC_STREAM_CANCELLED),
0);
}
TEST_F(QuicControlFrameManagerTest, NumBufferedMaxStreams) {
std::vector<QuicMaxStreamsFrame> max_streams_frames;
size_t expected_buffered_frames = 0;
for (int i = 0; i < 5; ++i) {
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.WillOnce(Invoke([&max_streams_frames](const QuicFrame& frame,
TransmissionType ) {
max_streams_frames.push_back(frame.max_streams_frame);
ClearControlFrame(frame);
return true;
}));
manager_->WriteOrBufferMaxStreams(0, false);
EXPECT_EQ(++expected_buffered_frames, manager_->NumBufferedMaxStreams());
}
for (const QuicMaxStreamsFrame& frame : max_streams_frames) {
manager_->OnControlFrameAcked(QuicFrame(frame));
EXPECT_EQ(--expected_buffered_frames, manager_->NumBufferedMaxStreams());
}
EXPECT_EQ(0, manager_->NumBufferedMaxStreams());
}
}
}
} |
240 | cpp | google/quiche | quic_packet_number | quiche/quic/core/quic_packet_number.cc | quiche/quic/core/quic_packet_number_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_PACKET_NUMBER_H_
#define QUICHE_QUIC_CORE_QUIC_PACKET_NUMBER_H_
#include <limits>
#include <ostream>
#include <string>
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
class QUICHE_EXPORT QuicPacketNumber {
public:
constexpr QuicPacketNumber() : packet_number_(UninitializedPacketNumber()) {}
explicit constexpr QuicPacketNumber(uint64_t packet_number)
: packet_number_(packet_number) {
QUICHE_DCHECK_NE(UninitializedPacketNumber(), packet_number)
<< "Use default constructor for uninitialized packet number";
}
static constexpr uint64_t UninitializedPacketNumber() {
return std::numeric_limits<uint64_t>::max();
}
void Clear();
void UpdateMax(QuicPacketNumber new_value);
uint64_t Hash() const;
uint64_t ToUint64() const;
bool IsInitialized() const;
QuicPacketNumber& operator++();
QuicPacketNumber operator++(int);
QuicPacketNumber& operator--();
QuicPacketNumber operator--(int);
QuicPacketNumber& operator+=(uint64_t delta);
QuicPacketNumber& operator-=(uint64_t delta);
std::string ToString() const;
QUICHE_EXPORT friend std::ostream& operator<<(std::ostream& os,
const QuicPacketNumber& p);
private:
friend inline bool operator==(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline bool operator!=(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline bool operator<(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline bool operator<=(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline bool operator>(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline bool operator>=(QuicPacketNumber lhs, QuicPacketNumber rhs);
friend inline QuicPacketNumber operator+(QuicPacketNumber lhs,
uint64_t delta);
friend inline QuicPacketNumber operator-(QuicPacketNumber lhs,
uint64_t delta);
friend inline uint64_t operator-(QuicPacketNumber lhs, QuicPacketNumber rhs);
uint64_t packet_number_;
};
class QUICHE_EXPORT QuicPacketNumberHash {
public:
uint64_t operator()(QuicPacketNumber packet_number) const noexcept {
return packet_number.Hash();
}
};
inline bool operator==(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ == rhs.packet_number_;
}
inline bool operator!=(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ != rhs.packet_number_;
}
inline bool operator<(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ < rhs.packet_number_;
}
inline bool operator<=(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ <= rhs.packet_number_;
}
inline bool operator>(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ > rhs.packet_number_;
}
inline bool operator>=(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized())
<< lhs << " vs. " << rhs;
return lhs.packet_number_ >= rhs.packet_number_;
}
inline QuicPacketNumber operator+(QuicPacketNumber lhs, uint64_t delta) {
#ifndef NDEBUG
QUICHE_DCHECK(lhs.IsInitialized());
QUICHE_DCHECK_GT(std::numeric_limits<uint64_t>::max() - lhs.ToUint64(),
delta);
#endif
return QuicPacketNumber(lhs.packet_number_ + delta);
}
inline QuicPacketNumber operator-(QuicPacketNumber lhs, uint64_t delta) {
#ifndef NDEBUG
QUICHE_DCHECK(lhs.IsInitialized());
QUICHE_DCHECK_GE(lhs.ToUint64(), delta);
#endif
return QuicPacketNumber(lhs.packet_number_ - delta);
}
inline uint64_t operator-(QuicPacketNumber lhs, QuicPacketNumber rhs) {
QUICHE_DCHECK(lhs.IsInitialized() && rhs.IsInitialized() && lhs >= rhs)
<< lhs << " vs. " << rhs;
return lhs.packet_number_ - rhs.packet_number_;
}
}
#endif
#include "quiche/quic/core/quic_packet_number.h"
#include <algorithm>
#include <limits>
#include <ostream>
#include <string>
#include "absl/strings/str_cat.h"
namespace quic {
void QuicPacketNumber::Clear() { packet_number_ = UninitializedPacketNumber(); }
void QuicPacketNumber::UpdateMax(QuicPacketNumber new_value) {
if (!new_value.IsInitialized()) {
return;
}
if (!IsInitialized()) {
packet_number_ = new_value.ToUint64();
} else {
packet_number_ = std::max(packet_number_, new_value.ToUint64());
}
}
uint64_t QuicPacketNumber::Hash() const {
QUICHE_DCHECK(IsInitialized());
return packet_number_;
}
uint64_t QuicPacketNumber::ToUint64() const {
QUICHE_DCHECK(IsInitialized());
return packet_number_;
}
bool QuicPacketNumber::IsInitialized() const {
return packet_number_ != UninitializedPacketNumber();
}
QuicPacketNumber& QuicPacketNumber::operator++() {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_LT(ToUint64(), std::numeric_limits<uint64_t>::max() - 1);
#endif
packet_number_++;
return *this;
}
QuicPacketNumber QuicPacketNumber::operator++(int) {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_LT(ToUint64(), std::numeric_limits<uint64_t>::max() - 1);
#endif
QuicPacketNumber previous(*this);
packet_number_++;
return previous;
}
QuicPacketNumber& QuicPacketNumber::operator--() {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_GE(ToUint64(), 1UL);
#endif
packet_number_--;
return *this;
}
QuicPacketNumber QuicPacketNumber::operator--(int) {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_GE(ToUint64(), 1UL);
#endif
QuicPacketNumber previous(*this);
packet_number_--;
return previous;
}
QuicPacketNumber& QuicPacketNumber::operator+=(uint64_t delta) {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_GT(std::numeric_limits<uint64_t>::max() - ToUint64(), delta);
#endif
packet_number_ += delta;
return *this;
}
QuicPacketNumber& QuicPacketNumber::operator-=(uint64_t delta) {
#ifndef NDEBUG
QUICHE_DCHECK(IsInitialized());
QUICHE_DCHECK_GE(ToUint64(), delta);
#endif
packet_number_ -= delta;
return *this;
}
std::string QuicPacketNumber::ToString() const {
if (!IsInitialized()) {
return "uninitialized";
}
return absl::StrCat(ToUint64());
}
std::ostream& operator<<(std::ostream& os, const QuicPacketNumber& p) {
os << p.ToString();
return os;
}
} | #include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
TEST(QuicPacketNumberTest, BasicTest) {
QuicPacketNumber num;
EXPECT_FALSE(num.IsInitialized());
QuicPacketNumber num2(10);
EXPECT_TRUE(num2.IsInitialized());
EXPECT_EQ(10u, num2.ToUint64());
EXPECT_EQ(10u, num2.Hash());
num2.UpdateMax(num);
EXPECT_EQ(10u, num2.ToUint64());
num2.UpdateMax(QuicPacketNumber(9));
EXPECT_EQ(10u, num2.ToUint64());
num2.UpdateMax(QuicPacketNumber(11));
EXPECT_EQ(11u, num2.ToUint64());
num2.Clear();
EXPECT_FALSE(num2.IsInitialized());
num2.UpdateMax(QuicPacketNumber(9));
EXPECT_EQ(9u, num2.ToUint64());
QuicPacketNumber num4(0);
EXPECT_TRUE(num4.IsInitialized());
EXPECT_EQ(0u, num4.ToUint64());
EXPECT_EQ(0u, num4.Hash());
num4.Clear();
EXPECT_FALSE(num4.IsInitialized());
}
TEST(QuicPacketNumberTest, Operators) {
QuicPacketNumber num(100);
EXPECT_EQ(QuicPacketNumber(100), num++);
EXPECT_EQ(QuicPacketNumber(101), num);
EXPECT_EQ(QuicPacketNumber(101), num--);
EXPECT_EQ(QuicPacketNumber(100), num);
EXPECT_EQ(QuicPacketNumber(101), ++num);
EXPECT_EQ(QuicPacketNumber(100), --num);
QuicPacketNumber num3(0);
EXPECT_EQ(QuicPacketNumber(0), num3++);
EXPECT_EQ(QuicPacketNumber(1), num3);
EXPECT_EQ(QuicPacketNumber(2), ++num3);
EXPECT_EQ(QuicPacketNumber(2), num3--);
EXPECT_EQ(QuicPacketNumber(1), num3);
EXPECT_EQ(QuicPacketNumber(0), --num3);
}
}
}
} |
241 | cpp | google/quiche | quic_tag | quiche/quic/core/quic_tag.cc | quiche/quic/core/quic_tag_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_TAG_H_
#define QUICHE_QUIC_CORE_QUIC_TAG_H_
#include <cstdint>
#include <map>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
using QuicTag = uint32_t;
using QuicTagValueMap = std::map<QuicTag, std::string>;
using QuicTagVector = std::vector<QuicTag>;
QUICHE_EXPORT QuicTag MakeQuicTag(uint8_t a, uint8_t b, uint8_t c, uint8_t d);
QUICHE_EXPORT bool ContainsQuicTag(const QuicTagVector& tag_vector,
QuicTag tag);
QUICHE_EXPORT bool FindMutualQuicTag(const QuicTagVector& our_tags,
const QuicTagVector& their_tags,
QuicTag* out_result, size_t* out_index);
QUICHE_EXPORT std::string QuicTagToString(QuicTag tag);
QUICHE_EXPORT QuicTag ParseQuicTag(absl::string_view tag_string);
QUICHE_EXPORT QuicTagVector ParseQuicTagVector(absl::string_view tags_string);
}
#endif
#include "quiche/quic/core/quic_tag.h"
#include <algorithm>
#include <string>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/ascii.h"
#include "absl/strings/escaping.h"
#include "absl/strings/str_split.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
bool FindMutualQuicTag(const QuicTagVector& our_tags,
const QuicTagVector& their_tags, QuicTag* out_result,
size_t* out_index) {
const size_t num_our_tags = our_tags.size();
const size_t num_their_tags = their_tags.size();
for (size_t i = 0; i < num_our_tags; i++) {
for (size_t j = 0; j < num_their_tags; j++) {
if (our_tags[i] == their_tags[j]) {
*out_result = our_tags[i];
if (out_index != nullptr) {
*out_index = j;
}
return true;
}
}
}
return false;
}
std::string QuicTagToString(QuicTag tag) {
if (tag == 0) {
return "0";
}
char chars[sizeof tag];
bool ascii = true;
const QuicTag orig_tag = tag;
for (size_t i = 0; i < ABSL_ARRAYSIZE(chars); i++) {
chars[i] = static_cast<char>(tag);
if ((chars[i] == 0 || chars[i] == '\xff') &&
i == ABSL_ARRAYSIZE(chars) - 1) {
chars[i] = ' ';
}
if (!absl::ascii_isprint(static_cast<unsigned char>(chars[i]))) {
ascii = false;
break;
}
tag >>= 8;
}
if (ascii) {
return std::string(chars, sizeof(chars));
}
return absl::BytesToHexString(absl::string_view(
reinterpret_cast<const char*>(&orig_tag), sizeof(orig_tag)));
}
uint32_t MakeQuicTag(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
return static_cast<uint32_t>(a) | static_cast<uint32_t>(b) << 8 |
static_cast<uint32_t>(c) << 16 | static_cast<uint32_t>(d) << 24;
}
bool ContainsQuicTag(const QuicTagVector& tag_vector, QuicTag tag) {
return std::find(tag_vector.begin(), tag_vector.end(), tag) !=
tag_vector.end();
}
QuicTag ParseQuicTag(absl::string_view tag_string) {
quiche::QuicheTextUtils::RemoveLeadingAndTrailingWhitespace(&tag_string);
std::string tag_bytes;
if (tag_string.length() == 8) {
tag_bytes = absl::HexStringToBytes(tag_string);
tag_string = tag_bytes;
}
QuicTag tag = 0;
for (auto it = tag_string.rbegin(); it != tag_string.rend(); ++it) {
unsigned char token_char = static_cast<unsigned char>(*it);
tag <<= 8;
tag |= token_char;
}
return tag;
}
QuicTagVector ParseQuicTagVector(absl::string_view tags_string) {
QuicTagVector tag_vector;
quiche::QuicheTextUtils::RemoveLeadingAndTrailingWhitespace(&tags_string);
if (!tags_string.empty()) {
std::vector<absl::string_view> tag_strings =
absl::StrSplit(tags_string, ',');
for (absl::string_view tag_string : tag_strings) {
tag_vector.push_back(ParseQuicTag(tag_string));
}
}
return tag_vector;
}
} | #include "quiche/quic/core/quic_tag.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
class QuicTagTest : public QuicTest {};
TEST_F(QuicTagTest, TagToString) {
EXPECT_EQ("SCFG", QuicTagToString(kSCFG));
EXPECT_EQ("SNO ", QuicTagToString(kServerNonceTag));
EXPECT_EQ("CRT ", QuicTagToString(kCertificateTag));
EXPECT_EQ("CHLO", QuicTagToString(MakeQuicTag('C', 'H', 'L', 'O')));
EXPECT_EQ("43484c1f", QuicTagToString(MakeQuicTag('C', 'H', 'L', '\x1f')));
}
TEST_F(QuicTagTest, MakeQuicTag) {
QuicTag tag = MakeQuicTag('A', 'B', 'C', 'D');
char bytes[4];
memcpy(bytes, &tag, 4);
EXPECT_EQ('A', bytes[0]);
EXPECT_EQ('B', bytes[1]);
EXPECT_EQ('C', bytes[2]);
EXPECT_EQ('D', bytes[3]);
}
TEST_F(QuicTagTest, ParseQuicTag) {
QuicTag tag_abcd = MakeQuicTag('A', 'B', 'C', 'D');
EXPECT_EQ(ParseQuicTag("ABCD"), tag_abcd);
EXPECT_EQ(ParseQuicTag("ABCDE"), tag_abcd);
QuicTag tag_efgh = MakeQuicTag('E', 'F', 'G', 'H');
EXPECT_EQ(ParseQuicTag("EFGH"), tag_efgh);
QuicTag tag_ijk = MakeQuicTag('I', 'J', 'K', 0);
EXPECT_EQ(ParseQuicTag("IJK"), tag_ijk);
QuicTag tag_l = MakeQuicTag('L', 0, 0, 0);
EXPECT_EQ(ParseQuicTag("L"), tag_l);
QuicTag tag_hex = MakeQuicTag('M', 'N', 'O', static_cast<char>(255));
EXPECT_EQ(ParseQuicTag("4d4e4fff"), tag_hex);
EXPECT_EQ(ParseQuicTag("4D4E4FFF"), tag_hex);
QuicTag tag_with_numbers = MakeQuicTag('P', 'Q', '1', '2');
EXPECT_EQ(ParseQuicTag("PQ12"), tag_with_numbers);
QuicTag tag_with_custom_chars = MakeQuicTag('r', '$', '_', '7');
EXPECT_EQ(ParseQuicTag("r$_7"), tag_with_custom_chars);
QuicTag tag_zero = 0;
EXPECT_EQ(ParseQuicTag(""), tag_zero);
QuicTagVector tag_vector;
EXPECT_EQ(ParseQuicTagVector(""), tag_vector);
EXPECT_EQ(ParseQuicTagVector(" "), tag_vector);
tag_vector.push_back(tag_abcd);
EXPECT_EQ(ParseQuicTagVector("ABCD"), tag_vector);
tag_vector.push_back(tag_efgh);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH"), tag_vector);
tag_vector.push_back(tag_ijk);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK"), tag_vector);
tag_vector.push_back(tag_l);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK,L"), tag_vector);
tag_vector.push_back(tag_hex);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK,L,4d4e4fff"), tag_vector);
tag_vector.push_back(tag_with_numbers);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK,L,4d4e4fff,PQ12"), tag_vector);
tag_vector.push_back(tag_with_custom_chars);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK,L,4d4e4fff,PQ12,r$_7"),
tag_vector);
tag_vector.push_back(tag_zero);
EXPECT_EQ(ParseQuicTagVector("ABCD,EFGH,IJK,L,4d4e4fff,PQ12,r$_7,"),
tag_vector);
}
}
}
} |
242 | cpp | google/quiche | quic_server_id | quiche/quic/core/quic_server_id.cc | quiche/quic/core/quic_server_id_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_SERVER_ID_H_
#define QUICHE_QUIC_CORE_QUIC_SERVER_ID_H_
#include <cstdint>
#include <optional>
#include <string>
#include "absl/hash/hash.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QuicServerId {
public:
static std::optional<QuicServerId> ParseFromHostPortString(
absl::string_view host_port_string);
QuicServerId();
QuicServerId(std::string host, uint16_t port);
QuicServerId(std::string host, uint16_t port, bool privacy_mode_enabled);
~QuicServerId();
bool operator<(const QuicServerId& other) const;
bool operator==(const QuicServerId& other) const;
bool operator!=(const QuicServerId& other) const;
const std::string& host() const { return host_; }
uint16_t port() const { return port_; }
bool privacy_mode_enabled() const { return privacy_mode_enabled_; }
std::string ToHostPortString() const;
absl::string_view GetHostWithoutIpv6Brackets() const;
std::string GetHostWithIpv6Brackets() const;
template <typename H>
friend H AbslHashValue(H h, const QuicServerId& server_id) {
return H::combine(std::move(h), server_id.host(), server_id.port(),
server_id.privacy_mode_enabled());
}
private:
std::string host_;
uint16_t port_;
bool privacy_mode_enabled_;
};
using QuicServerIdHash = absl::Hash<QuicServerId>;
}
#endif
#include "quiche/quic/core/quic_server_id.h"
#include <optional>
#include <string>
#include <tuple>
#include <utility>
#include "absl/strings/match.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/common/platform/api/quiche_googleurl.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
std::optional<QuicServerId> QuicServerId::ParseFromHostPortString(
absl::string_view host_port_string) {
url::Component username_component;
url::Component password_component;
url::Component host_component;
url::Component port_component;
url::ParseAuthority(host_port_string.data(),
url::Component(0, host_port_string.size()),
&username_component, &password_component, &host_component,
&port_component);
if (username_component.is_valid() || password_component.is_valid() ||
!host_component.is_nonempty() || !port_component.is_nonempty()) {
QUICHE_DVLOG(1) << "QuicServerId could not be parsed: " << host_port_string;
return std::nullopt;
}
std::string hostname(host_port_string.data() + host_component.begin,
host_component.len);
int parsed_port_number =
url::ParsePort(host_port_string.data(), port_component);
if (parsed_port_number <= 0) {
QUICHE_DVLOG(1)
<< "Port could not be parsed while parsing QuicServerId from: "
<< host_port_string;
return std::nullopt;
}
QUICHE_DCHECK_LE(parsed_port_number, std::numeric_limits<uint16_t>::max());
return QuicServerId(std::move(hostname),
static_cast<uint16_t>(parsed_port_number));
}
QuicServerId::QuicServerId() : QuicServerId("", 0, false) {}
QuicServerId::QuicServerId(std::string host, uint16_t port)
: QuicServerId(std::move(host), port, false) {}
QuicServerId::QuicServerId(std::string host, uint16_t port,
bool privacy_mode_enabled)
: host_(std::move(host)),
port_(port),
privacy_mode_enabled_(privacy_mode_enabled) {}
QuicServerId::~QuicServerId() {}
bool QuicServerId::operator<(const QuicServerId& other) const {
return std::tie(port_, host_, privacy_mode_enabled_) <
std::tie(other.port_, other.host_, other.privacy_mode_enabled_);
}
bool QuicServerId::operator==(const QuicServerId& other) const {
return privacy_mode_enabled_ == other.privacy_mode_enabled_ &&
host_ == other.host_ && port_ == other.port_;
}
bool QuicServerId::operator!=(const QuicServerId& other) const {
return !(*this == other);
}
std::string QuicServerId::ToHostPortString() const {
return absl::StrCat(GetHostWithIpv6Brackets(), ":", port_);
}
absl::string_view QuicServerId::GetHostWithoutIpv6Brackets() const {
if (host_.length() > 2 && host_.front() == '[' && host_.back() == ']') {
return absl::string_view(host_.data() + 1, host_.length() - 2);
} else {
return host_;
}
}
std::string QuicServerId::GetHostWithIpv6Brackets() const {
if (!absl::StrContains(host_, ':') || host_.length() <= 2 ||
(host_.front() == '[' && host_.back() == ']')) {
return host_;
} else {
return absl::StrCat("[", host_, "]");
}
}
} | #include "quiche/quic/core/quic_server_id.h"
#include <optional>
#include <string>
#include "quiche/quic/platform/api/quic_test.h"
namespace quic::test {
namespace {
using ::testing::Optional;
using ::testing::Property;
class QuicServerIdTest : public QuicTest {};
TEST_F(QuicServerIdTest, Constructor) {
QuicServerId google_server_id("google.com", 10, false);
EXPECT_EQ("google.com", google_server_id.host());
EXPECT_EQ(10, google_server_id.port());
EXPECT_FALSE(google_server_id.privacy_mode_enabled());
QuicServerId private_server_id("mail.google.com", 12, true);
EXPECT_EQ("mail.google.com", private_server_id.host());
EXPECT_EQ(12, private_server_id.port());
EXPECT_TRUE(private_server_id.privacy_mode_enabled());
}
TEST_F(QuicServerIdTest, LessThan) {
QuicServerId a_10_https("a.com", 10, false);
QuicServerId a_11_https("a.com", 11, false);
QuicServerId b_10_https("b.com", 10, false);
QuicServerId b_11_https("b.com", 11, false);
QuicServerId a_10_https_private("a.com", 10, true);
QuicServerId a_11_https_private("a.com", 11, true);
QuicServerId b_10_https_private("b.com", 10, true);
QuicServerId b_11_https_private("b.com", 11, true);
EXPECT_FALSE(a_10_https < a_10_https);
EXPECT_TRUE(a_10_https < a_10_https_private);
EXPECT_FALSE(a_10_https_private < a_10_https);
EXPECT_FALSE(a_10_https_private < a_10_https_private);
bool left_privacy;
bool right_privacy;
for (int i = 0; i < 4; i++) {
left_privacy = (i / 2 == 0);
right_privacy = (i % 2 == 0);
QuicServerId a_10_https_left_private("a.com", 10, left_privacy);
QuicServerId a_10_https_right_private("a.com", 10, right_privacy);
QuicServerId a_11_https_left_private("a.com", 11, left_privacy);
QuicServerId a_11_https_right_private("a.com", 11, right_privacy);
QuicServerId b_10_https_left_private("b.com", 10, left_privacy);
QuicServerId b_10_https_right_private("b.com", 10, right_privacy);
QuicServerId b_11_https_left_private("b.com", 11, left_privacy);
QuicServerId b_11_https_right_private("b.com", 11, right_privacy);
EXPECT_TRUE(a_10_https_left_private < a_11_https_right_private);
EXPECT_TRUE(a_10_https_left_private < b_10_https_right_private);
EXPECT_TRUE(a_10_https_left_private < b_11_https_right_private);
EXPECT_FALSE(a_11_https_left_private < a_10_https_right_private);
EXPECT_FALSE(a_11_https_left_private < b_10_https_right_private);
EXPECT_TRUE(a_11_https_left_private < b_11_https_right_private);
EXPECT_FALSE(b_10_https_left_private < a_10_https_right_private);
EXPECT_TRUE(b_10_https_left_private < a_11_https_right_private);
EXPECT_TRUE(b_10_https_left_private < b_11_https_right_private);
EXPECT_FALSE(b_11_https_left_private < a_10_https_right_private);
EXPECT_FALSE(b_11_https_left_private < a_11_https_right_private);
EXPECT_FALSE(b_11_https_left_private < b_10_https_right_private);
}
}
TEST_F(QuicServerIdTest, Equals) {
bool left_privacy;
bool right_privacy;
for (int i = 0; i < 2; i++) {
left_privacy = right_privacy = (i == 0);
QuicServerId a_10_https_right_private("a.com", 10, right_privacy);
QuicServerId a_11_https_right_private("a.com", 11, right_privacy);
QuicServerId b_10_https_right_private("b.com", 10, right_privacy);
QuicServerId b_11_https_right_private("b.com", 11, right_privacy);
EXPECT_NE(a_10_https_right_private, a_11_https_right_private);
EXPECT_NE(a_10_https_right_private, b_10_https_right_private);
EXPECT_NE(a_10_https_right_private, b_11_https_right_private);
QuicServerId new_a_10_https_left_private("a.com", 10, left_privacy);
QuicServerId new_a_11_https_left_private("a.com", 11, left_privacy);
QuicServerId new_b_10_https_left_private("b.com", 10, left_privacy);
QuicServerId new_b_11_https_left_private("b.com", 11, left_privacy);
EXPECT_EQ(new_a_10_https_left_private, a_10_https_right_private);
EXPECT_EQ(new_a_11_https_left_private, a_11_https_right_private);
EXPECT_EQ(new_b_10_https_left_private, b_10_https_right_private);
EXPECT_EQ(new_b_11_https_left_private, b_11_https_right_private);
}
for (int i = 0; i < 2; i++) {
right_privacy = (i == 0);
QuicServerId a_10_https_right_private("a.com", 10, right_privacy);
QuicServerId a_11_https_right_private("a.com", 11, right_privacy);
QuicServerId b_10_https_right_private("b.com", 10, right_privacy);
QuicServerId b_11_https_right_private("b.com", 11, right_privacy);
QuicServerId new_a_10_https_left_private("a.com", 10, false);
EXPECT_NE(new_a_10_https_left_private, a_11_https_right_private);
EXPECT_NE(new_a_10_https_left_private, b_10_https_right_private);
EXPECT_NE(new_a_10_https_left_private, b_11_https_right_private);
}
QuicServerId a_10_https_private("a.com", 10, true);
QuicServerId new_a_10_https_no_private("a.com", 10, false);
EXPECT_NE(new_a_10_https_no_private, a_10_https_private);
}
TEST_F(QuicServerIdTest, Parse) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("host.test:500");
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::host, "host.test")));
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::port, 500)));
EXPECT_THAT(server_id,
Optional(Property(&QuicServerId::privacy_mode_enabled, false)));
}
TEST_F(QuicServerIdTest, CannotParseMissingPort) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("host.test");
EXPECT_EQ(server_id, std::nullopt);
}
TEST_F(QuicServerIdTest, CannotParseEmptyPort) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("host.test:");
EXPECT_EQ(server_id, std::nullopt);
}
TEST_F(QuicServerIdTest, CannotParseEmptyHost) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString(":500");
EXPECT_EQ(server_id, std::nullopt);
}
TEST_F(QuicServerIdTest, CannotParseUserInfo) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("userinfo@host.test:500");
EXPECT_EQ(server_id, std::nullopt);
}
TEST_F(QuicServerIdTest, ParseIpv6Literal) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("[::1]:400");
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::host, "[::1]")));
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::port, 400)));
EXPECT_THAT(server_id,
Optional(Property(&QuicServerId::privacy_mode_enabled, false)));
}
TEST_F(QuicServerIdTest, ParseUnbracketedIpv6Literal) {
std::optional<QuicServerId> server_id =
QuicServerId::ParseFromHostPortString("::1:400");
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::host, "::1")));
EXPECT_THAT(server_id, Optional(Property(&QuicServerId::port, 400)));
EXPECT_THAT(server_id,
Optional(Property(&QuicServerId::privacy_mode_enabled, false)));
}
TEST_F(QuicServerIdTest, AddBracketsToIpv6) {
QuicServerId server_id("::1", 100);
EXPECT_EQ(server_id.GetHostWithIpv6Brackets(), "[::1]");
EXPECT_EQ(server_id.ToHostPortString(), "[::1]:100");
}
TEST_F(QuicServerIdTest, AddBracketsAlreadyIncluded) {
QuicServerId server_id("[::1]", 100);
EXPECT_EQ(server_id.GetHostWithIpv6Brackets(), "[::1]");
EXPECT_EQ(server_id.ToHostPortString(), "[::1]:100");
}
TEST_F(QuicServerIdTest, AddBracketsNotAddedToNonIpv6) {
QuicServerId server_id("host.test", 100);
EXPECT_EQ(server_id.GetHostWithIpv6Brackets(), "host.test");
EXPECT_EQ(server_id.ToHostPortString(), "host.test:100");
}
TEST_F(QuicServerIdTest, RemoveBracketsFromIpv6) {
QuicServerId server_id("[::1]", 100);
EXPECT_EQ(server_id.GetHostWithoutIpv6Brackets(), "::1");
}
TEST_F(QuicServerIdTest, RemoveBracketsNotIncluded) {
QuicServerId server_id("::1", 100);
EXPECT_EQ(server_id.GetHostWithoutIpv6Brackets(), "::1");
}
TEST_F(QuicServerIdTest, RemoveBracketsFromNonIpv6) {
QuicServerId server_id("host.test", 100);
EXPECT_EQ(server_id.GetHostWithoutIpv6Brackets(), "host.test");
}
}
} |
243 | cpp | google/quiche | quic_crypto_stream | quiche/quic/core/quic_crypto_stream.cc | quiche/quic/core/quic_crypto_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CRYPTO_STREAM_H_
#define QUICHE_QUIC_CORE_QUIC_CRYPTO_STREAM_H_
#include <array>
#include <cstddef>
#include <string>
#include "absl/strings/string_view.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/crypto/crypto_framer.h"
#include "quiche/quic/core/crypto/crypto_utils.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class CachedNetworkParameters;
class QuicSession;
class QUICHE_EXPORT QuicCryptoStream : public QuicStream {
public:
explicit QuicCryptoStream(QuicSession* session);
QuicCryptoStream(const QuicCryptoStream&) = delete;
QuicCryptoStream& operator=(const QuicCryptoStream&) = delete;
~QuicCryptoStream() override;
static QuicByteCount CryptoMessageFramingOverhead(
QuicTransportVersion version, QuicConnectionId connection_id);
void OnStreamFrame(const QuicStreamFrame& frame) override;
void OnDataAvailable() override;
void OnCryptoFrame(const QuicCryptoFrame& frame);
bool OnCryptoFrameAcked(const QuicCryptoFrame& frame,
QuicTime::Delta ack_delay_time);
void OnStreamReset(const QuicRstStreamFrame& frame) override;
virtual bool ExportKeyingMaterial(absl::string_view label,
absl::string_view context,
size_t result_len, std::string* result) = 0;
virtual void WriteCryptoData(EncryptionLevel level, absl::string_view data);
virtual ssl_early_data_reason_t EarlyDataReason() const = 0;
virtual bool encryption_established() const = 0;
virtual bool one_rtt_keys_available() const = 0;
virtual const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const = 0;
virtual CryptoMessageParser* crypto_message_parser() = 0;
virtual void OnPacketDecrypted(EncryptionLevel level) = 0;
virtual void OnOneRttPacketAcknowledged() = 0;
virtual void OnHandshakePacketSent() = 0;
virtual void OnHandshakeDoneReceived() = 0;
virtual void OnNewTokenReceived(absl::string_view token) = 0;
virtual std::string GetAddressToken(
const CachedNetworkParameters* cached_network_params) const = 0;
virtual bool ValidateAddressToken(absl::string_view token) const = 0;
virtual const CachedNetworkParameters* PreviousCachedNetworkParams()
const = 0;
virtual void SetPreviousCachedNetworkParams(
CachedNetworkParameters cached_network_params) = 0;
virtual HandshakeState GetHandshakeState() const = 0;
virtual void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> state) = 0;
virtual size_t BufferSizeLimitForLevel(EncryptionLevel level) const;
virtual std::unique_ptr<QuicDecrypter>
AdvanceKeysAndCreateCurrentOneRttDecrypter() = 0;
virtual std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() = 0;
virtual SSL* GetSsl() const = 0;
void NeuterUnencryptedStreamData();
void NeuterStreamDataOfEncryptionLevel(EncryptionLevel level);
void OnStreamDataConsumed(QuicByteCount bytes_consumed) override;
virtual bool HasPendingCryptoRetransmission() const;
void WritePendingCryptoRetransmission();
void WritePendingRetransmission() override;
bool RetransmitStreamData(QuicStreamOffset offset, QuicByteCount data_length,
bool fin, TransmissionType type) override;
QuicConsumedData RetransmitStreamDataAtLevel(
QuicStreamOffset retransmission_offset,
QuicByteCount retransmission_length, EncryptionLevel encryption_level,
TransmissionType type);
uint64_t crypto_bytes_read() const;
QuicByteCount BytesReadOnLevel(EncryptionLevel level) const;
QuicByteCount BytesSentOnLevel(EncryptionLevel level) const;
bool WriteCryptoFrame(EncryptionLevel level, QuicStreamOffset offset,
QuicByteCount data_length, QuicDataWriter* writer);
void OnCryptoFrameLost(QuicCryptoFrame* crypto_frame);
bool RetransmitData(QuicCryptoFrame* crypto_frame, TransmissionType type);
void WriteBufferedCryptoFrames();
bool HasBufferedCryptoFrames() const;
bool IsFrameOutstanding(EncryptionLevel level, size_t offset,
size_t length) const;
bool IsWaitingForAcks() const;
virtual void OnDataAvailableInSequencer(QuicStreamSequencer* sequencer,
EncryptionLevel level);
QuicStreamSequencer* GetStreamSequencerForPacketNumberSpace(
PacketNumberSpace packet_number_space) {
return &substreams_[packet_number_space].sequencer;
}
virtual bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const = 0;
virtual EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const = 0;
private:
struct QUICHE_EXPORT CryptoSubstream {
CryptoSubstream(QuicCryptoStream* crypto_stream);
QuicStreamSequencer sequencer;
QuicStreamSendBuffer send_buffer;
};
QuicIntervalSet<QuicStreamOffset> bytes_consumed_[NUM_ENCRYPTION_LEVELS];
std::array<CryptoSubstream, NUM_PACKET_NUMBER_SPACES> substreams_;
};
}
#endif
#include "quiche/quic/core/quic_crypto_stream.h"
#include <algorithm>
#include <optional>
#include <string>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/frames/quic_crypto_frame.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
#define ENDPOINT \
(session()->perspective() == Perspective::IS_SERVER ? "Server: " \
: "Client:" \
" ")
QuicCryptoStream::QuicCryptoStream(QuicSession* session)
: QuicStream(
QuicVersionUsesCryptoFrames(session->transport_version())
? QuicUtils::GetInvalidStreamId(session->transport_version())
: QuicUtils::GetCryptoStreamId(session->transport_version()),
session,
true,
QuicVersionUsesCryptoFrames(session->transport_version())
? CRYPTO
: BIDIRECTIONAL),
substreams_{{{this}, {this}, {this}}} {
DisableConnectionFlowControlForThisStream();
}
QuicCryptoStream::~QuicCryptoStream() {}
QuicByteCount QuicCryptoStream::CryptoMessageFramingOverhead(
QuicTransportVersion version, QuicConnectionId connection_id) {
QUICHE_DCHECK(
QuicUtils::IsConnectionIdValidForVersion(connection_id, version));
quiche::QuicheVariableLengthIntegerLength retry_token_length_length =
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_1;
quiche::QuicheVariableLengthIntegerLength length_length =
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_2;
if (!QuicVersionHasLongHeaderLengths(version)) {
retry_token_length_length = quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0;
length_length = quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0;
}
return QuicPacketCreator::StreamFramePacketOverhead(
version, connection_id.length(), 0, true,
true, PACKET_4BYTE_PACKET_NUMBER,
retry_token_length_length, length_length,
0);
}
void QuicCryptoStream::OnCryptoFrame(const QuicCryptoFrame& frame) {
QUIC_BUG_IF(quic_bug_12573_1,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 shouldn't receive CRYPTO frames";
EncryptionLevel level = session()->connection()->last_decrypted_level();
if (!IsCryptoFrameExpectedForEncryptionLevel(level)) {
OnUnrecoverableError(
IETF_QUIC_PROTOCOL_VIOLATION,
absl::StrCat("CRYPTO_FRAME is unexpectedly received at level ", level));
return;
}
CryptoSubstream& substream =
substreams_[QuicUtils::GetPacketNumberSpace(level)];
substream.sequencer.OnCryptoFrame(frame);
EncryptionLevel frame_level = level;
if (substream.sequencer.NumBytesBuffered() >
BufferSizeLimitForLevel(frame_level)) {
OnUnrecoverableError(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA,
"Too much crypto data received");
}
}
void QuicCryptoStream::OnStreamFrame(const QuicStreamFrame& frame) {
if (QuicVersionUsesCryptoFrames(session()->transport_version())) {
QUIC_PEER_BUG(quic_peer_bug_12573_2)
<< "Crypto data received in stream frame instead of crypto frame";
OnUnrecoverableError(QUIC_INVALID_STREAM_DATA, "Unexpected stream frame");
}
QuicStream::OnStreamFrame(frame);
}
void QuicCryptoStream::OnDataAvailable() {
EncryptionLevel level = session()->connection()->last_decrypted_level();
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) {
OnDataAvailableInSequencer(sequencer(), level);
return;
}
OnDataAvailableInSequencer(
&substreams_[QuicUtils::GetPacketNumberSpace(level)].sequencer, level);
}
void QuicCryptoStream::OnDataAvailableInSequencer(
QuicStreamSequencer* sequencer, EncryptionLevel level) {
struct iovec iov;
while (sequencer->GetReadableRegion(&iov)) {
absl::string_view data(static_cast<char*>(iov.iov_base), iov.iov_len);
if (!crypto_message_parser()->ProcessInput(data, level)) {
OnUnrecoverableError(crypto_message_parser()->error(),
crypto_message_parser()->error_detail());
return;
}
sequencer->MarkConsumed(iov.iov_len);
if (one_rtt_keys_available() &&
crypto_message_parser()->InputBytesRemaining() == 0) {
sequencer->ReleaseBufferIfEmpty();
}
}
}
void QuicCryptoStream::WriteCryptoData(EncryptionLevel level,
absl::string_view data) {
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) {
WriteOrBufferDataAtLevel(data, false, level,
nullptr);
return;
}
if (data.empty()) {
QUIC_BUG(quic_bug_10322_1) << "Empty crypto data being written";
return;
}
const bool had_buffered_data = HasBufferedCryptoFrames();
QuicStreamSendBuffer* send_buffer =
&substreams_[QuicUtils::GetPacketNumberSpace(level)].send_buffer;
QuicStreamOffset offset = send_buffer->stream_offset();
if (GetQuicFlag(quic_bounded_crypto_send_buffer)) {
QUIC_BUG_IF(quic_crypto_stream_offset_lt_bytes_written,
offset < send_buffer->stream_bytes_written());
uint64_t current_buffer_size =
offset - std::min(offset, send_buffer->stream_bytes_written());
if (current_buffer_size > 0) {
QUIC_CODE_COUNT(quic_received_crypto_data_with_non_empty_send_buffer);
if (BufferSizeLimitForLevel(level) <
(current_buffer_size + data.length())) {
QUIC_BUG(quic_crypto_send_buffer_overflow)
<< absl::StrCat("Too much data for crypto send buffer with level: ",
EncryptionLevelToString(level),
", current_buffer_size: ", current_buffer_size,
", data length: ", data.length(),
", SNI: ", crypto_negotiated_params().sni);
OnUnrecoverableError(QUIC_INTERNAL_ERROR,
"Too much data for crypto send buffer");
return;
}
}
}
send_buffer->SaveStreamData(data);
if (kMaxStreamLength - offset < data.length()) {
QUIC_BUG(quic_bug_10322_2) << "Writing too much crypto handshake data";
OnUnrecoverableError(QUIC_INTERNAL_ERROR,
"Writing too much crypto handshake data");
return;
}
if (had_buffered_data) {
return;
}
size_t bytes_consumed = stream_delegate()->SendCryptoData(
level, data.length(), offset, NOT_RETRANSMISSION);
send_buffer->OnStreamDataConsumed(bytes_consumed);
}
size_t QuicCryptoStream::BufferSizeLimitForLevel(EncryptionLevel) const {
return GetQuicFlag(quic_max_buffered_crypto_bytes);
}
bool QuicCryptoStream::OnCryptoFrameAcked(const QuicCryptoFrame& frame,
QuicTime::Delta ) {
QuicByteCount newly_acked_length = 0;
if (!substreams_[QuicUtils::GetPacketNumberSpace(frame.level)]
.send_buffer.OnStreamDataAcked(frame.offset, frame.data_length,
&newly_acked_length)) {
OnUnrecoverableError(QUIC_INTERNAL_ERROR,
"Trying to ack unsent crypto data.");
return false;
}
return newly_acked_length > 0;
}
void QuicCryptoStream::OnStreamReset(const QuicRstStreamFrame& ) {
stream_delegate()->OnStreamError(QUIC_INVALID_STREAM_ID,
"Attempt to reset crypto stream");
}
void QuicCryptoStream::NeuterUnencryptedStreamData() {
NeuterStreamDataOfEncryptionLevel(ENCRYPTION_INITIAL);
}
void QuicCryptoStream::NeuterStreamDataOfEncryptionLevel(
EncryptionLevel level) {
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) {
for (const auto& interval : bytes_consumed_[level]) {
QuicByteCount newly_acked_length = 0;
send_buffer().OnStreamDataAcked(
interval.min(), interval.max() - interval.min(), &newly_acked_length);
}
return;
}
QuicStreamSendBuffer* send_buffer =
&substreams_[QuicUtils::GetPacketNumberSpace(level)].send_buffer;
QuicIntervalSet<QuicStreamOffset> to_ack = send_buffer->bytes_acked();
to_ack.Complement(0, send_buffer->stream_offset());
for (const auto& interval : to_ack) {
QuicByteCount newly_acked_length = 0;
send_buffer->OnStreamDataAcked(
interval.min(), interval.max() - interval.min(), &newly_acked_length);
}
}
void QuicCryptoStream::OnStreamDataConsumed(QuicByteCount bytes_consumed) {
if (QuicVersionUsesCryptoFrames(session()->transport_version())) {
QUIC_BUG(quic_bug_10322_3)
<< "Stream data consumed when CRYPTO frames should be in use";
}
if (bytes_consumed > 0) {
bytes_consumed_[session()->connection()->encryption_level()].Add(
stream_bytes_written(), stream_bytes_written() + bytes_consumed);
}
QuicStream::OnStreamDataConsumed(bytes_consumed);
}
bool QuicCryptoStream::HasPendingCryptoRetransmission() const {
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) {
return false;
}
for (const auto& substream : substreams_) {
if (substream.send_buffer.HasPendingRetransmission()) {
return true;
}
}
return false;
}
void QuicCryptoStream::WritePendingCryptoRetransmission() {
QUIC_BUG_IF(quic_bug_12573_3,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't write CRYPTO frames";
for (uint8_t i = INITIAL_DATA; i <= APPLICATION_DATA; ++i) {
auto packet_number_space = static_cast<PacketNumberSpace>(i);
QuicStreamSendBuffer* send_buffer =
&substreams_[packet_number_space].send_buffer;
while (send_buffer->HasPendingRetransmission()) {
auto pending = send_buffer->NextPendingRetransmission();
size_t bytes_consumed = stream_delegate()->SendCryptoData(
GetEncryptionLevelToSendCryptoDataOfSpace(packet_number_space),
pending.length, pending.offset, HANDSHAKE_RETRANSMISSION);
send_buffer->OnStreamDataRetransmitted(pending.offset, bytes_consumed);
if (bytes_consumed < pending.length) {
return;
}
}
}
}
void QuicCryptoStream::WritePendingRetransmission() {
while (HasPendingRetransmission()) {
StreamPendingRetransmission pending =
send_buffer().NextPendingRetransmission();
QuicIntervalSet<QuicStreamOffset> retransmission(
pending.offset, pending.offset + pending.length);
EncryptionLevel retransmission_encryption_level = ENCRYPTION_INITIAL;
for (size_t i = 0; i < NUM_ENCRYPTION_LEVELS; ++i) {
if (retransmission.Intersects(bytes_consumed_[i])) {
retransmission_encryption_level = static_cast<EncryptionLevel>(i);
retransmission.Intersection(bytes_consumed_[i]);
break;
}
}
pending.offset = retransmission.begin()->min();
pending.length =
retransmission.begin()->max() - retransmission.begin()->min();
QuicConsumedData consumed = RetransmitStreamDataAtLevel(
pending.offset, pending.length, retransmission_encryption_level,
HANDSHAKE_RETRANSMISSION);
if (consumed.bytes_consumed < pending.length) {
break;
}
}
}
bool QuicCryptoStream::RetransmitStreamData(QuicStreamOffset offset,
QuicByteCount data_length,
bool ,
TransmissionType type) {
QUICHE_DCHECK(type == HANDSHAKE_RETRANSMISSION || type == PTO_RETRANSMISSION);
QuicIntervalSet<QuicStreamOffset> retransmission(offset,
offset + data_length);
EncryptionLevel send_encryption_level = ENCRYPTION_INITIAL;
for (size_t i = 0; i < NUM_ENCRYPTION_LEVELS; ++i) {
if (retransmission.Intersects(bytes_consumed_[i])) {
send_encryption_level = static_cast<EncryptionLevel>(i);
break;
}
}
retransmission.Difference(bytes_acked());
for (const auto& interval : retransmission) {
QuicStreamOffset retransmission_offset = interval.min();
QuicByteCount retransmission_length = interval.max() - interval.min();
QuicConsumedData consumed = RetransmitStreamDataAtLevel(
retransmission_offset, retransmission_length, send_encryption_level,
type);
if (consumed.bytes_consumed < retransmission_length) {
return false;
}
}
return true;
}
QuicConsumedData QuicCryptoStream::RetransmitStreamDataAtLevel(
QuicStreamOffset retransmission_offset, QuicByteCount retransmission_length,
EncryptionLevel encryption_level, TransmissionType type) {
QUICHE_DCHECK(type == HANDSHAKE_RETRANSMISSION || type == PTO_RETRANSMISSION);
const auto consumed = stream_delegate()->WritevData(
id(), retransmission_length, retransmission_offset, NO_FIN, type,
encryption_level);
QUIC_DVLOG(1) << ENDPOINT << "stream " << id()
<< " is forced to retransmit stream data ["
<< retransmission_offset << ", "
<< retransmission_offset + retransmission_length
<< "), with encryption level: " << encryption_level
<< ", consumed: " << consumed;
OnStreamFrameRetransmitted(retransmission_offset, consumed.bytes_consumed,
consumed.fin_consumed);
return consumed;
}
uint64_t QuicCryptoStream::crypto_bytes_read() const {
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) {
return stream_bytes_read();
}
uint64_t bytes_read = 0;
for (const CryptoSubstream& substream : substreams_) {
bytes_read += substream.sequencer.NumBytesConsumed();
}
return bytes_read;
}
uint64_t QuicCryptoStream::BytesReadOnLevel(EncryptionLevel level) const {
return substreams_[QuicUtils::GetPacketNumberSpace(level)]
.sequencer.NumBytesConsumed();
}
uint64_t QuicCryptoStream::BytesSentOnLevel(EncryptionLevel level) const {
return substreams_[QuicUtils::GetPacketNumberSpace(level)]
.send_buffer.stream_bytes_written();
}
bool QuicCryptoStream::WriteCryptoFrame(EncryptionLevel level,
QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) {
QUIC_BUG_IF(quic_bug_12573_4,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't write CRYPTO frames (2)";
return substreams_[QuicUtils::GetPacketNumberSpace(level)]
.send_buffer.WriteStreamData(offset, data_length, writer);
}
void QuicCryptoStream::OnCryptoFrameLost(QuicCryptoFrame* crypto_frame) {
QUIC_BUG_IF(quic_bug_12573_5,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't lose CRYPTO frames";
substreams_[QuicUtils::GetPacketNumberSpace(crypto_frame->level)]
.send_buffer.OnStreamDataLost(crypto_frame->offset,
crypto_frame->data_length);
}
bool QuicCryptoStream::RetransmitData(QuicCryptoFrame* crypto_frame,
TransmissionType type) {
QUIC_BUG_IF(quic_bug_12573_6,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't retransmit CRYPTO frames";
QuicIntervalSet<QuicStreamOffset> retransmission(
crypto_frame->offset, crypto_frame->offset + crypto_frame->data_length);
QuicStreamSendBuffer* send_buffer =
&substreams_[QuicUtils::GetPacketNumberSpace(crypto_frame->level)]
.send_buffer;
retransmission.Difference(send_buffer->bytes_acked());
if (retransmission.Empty()) {
return true;
}
for (const auto& interval : retransmission) {
size_t retransmission_offset = interval.min();
size_t retransmission_length = interval.max() - interval.min();
EncryptionLevel retransmission_encryption_level =
GetEncryptionLevelToSendCryptoDataOfSpace(
QuicUtils::GetPacketNumberSpace(crypto_frame->level));
size_t bytes_consumed = stream_delegate()->SendCryptoData(
retransmission_encryption_level, retransmission_length,
retransmission_offset, type);
send_buffer->OnStreamDataRetransmitted(retransmission_offset,
bytes_consumed);
if (bytes_consumed < retransmission_length) {
return false;
}
}
return true;
}
void QuicCryptoStream::WriteBufferedCryptoFrames() {
QUIC_BUG_IF(quic_bug_12573_7,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't use CRYPTO frames";
for (uint8_t i = INITIAL_DATA; i <= APPLICATION_DATA; ++i) {
auto packet_number_space = static_cast<PacketNumberSpace>(i);
QuicStreamSendBuffer* send_buffer =
&substreams_[packet_number_space].send_buffer;
const size_t data_length =
send_buffer->stream_offset() - send_buffer->stream_bytes_written();
if (data_length == 0) {
continue;
}
size_t bytes_consumed = stream_delegate()->SendCryptoData(
GetEncryptionLevelToSendCryptoDataOfSpace(packet_number_space),
data_length, send_buffer->stream_bytes_written(), NOT_RETRANSMISSION);
send_buffer->OnStreamDataConsumed(bytes_consumed);
if (bytes_consumed < data_length) {
break;
}
}
}
bool QuicCryptoStream::HasBufferedCryptoFrames() const {
QUIC_BUG_IF(quic_bug_12573_8,
!QuicVersionUsesCryptoFrames(session()->transport_version()))
<< "Versions less than 47 don't use CRYPTO frames";
for (const CryptoSubstream& substream : substreams_) {
const QuicStreamSendBuffer& send_buffer = substream.send_buffer;
QUICHE_DCHECK_GE(send_buffer.stream_offset(),
send_buffer.stream_bytes_written());
if (send_buffer.stream_offset() > send_buffer.stream_bytes_written()) {
return true;
}
}
return false;
}
bool QuicCryptoStream::IsFrameOutstanding(EncryptionLevel level, size_t offset,
size_t length) const {
if (!QuicVersionUsesCryptoFrames(session()->transport_version())) { | #include "quiche/quic/core/quic_crypto_stream.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::InSequence;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::Return;
namespace quic {
namespace test {
namespace {
class MockQuicCryptoStream : public QuicCryptoStream,
public QuicCryptoHandshaker {
public:
explicit MockQuicCryptoStream(QuicSession* session)
: QuicCryptoStream(session),
QuicCryptoHandshaker(this, session),
params_(new QuicCryptoNegotiatedParameters) {}
MockQuicCryptoStream(const MockQuicCryptoStream&) = delete;
MockQuicCryptoStream& operator=(const MockQuicCryptoStream&) = delete;
void OnHandshakeMessage(const CryptoHandshakeMessage& message) override {
messages_.push_back(message);
}
std::vector<CryptoHandshakeMessage>* messages() { return &messages_; }
ssl_early_data_reason_t EarlyDataReason() const override {
return ssl_early_data_unknown;
}
bool encryption_established() const override { return false; }
bool one_rtt_keys_available() const override { return false; }
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override {
return *params_;
}
CryptoMessageParser* crypto_message_parser() override {
return QuicCryptoHandshaker::crypto_message_parser();
}
void OnPacketDecrypted(EncryptionLevel ) override {}
void OnOneRttPacketAcknowledged() override {}
void OnHandshakePacketSent() override {}
void OnHandshakeDoneReceived() override {}
void OnNewTokenReceived(absl::string_view ) override {}
std::string GetAddressToken(
const CachedNetworkParameters* )
const override {
return "";
}
bool ValidateAddressToken(absl::string_view ) const override {
return true;
}
const CachedNetworkParameters* PreviousCachedNetworkParams() const override {
return nullptr;
}
void SetPreviousCachedNetworkParams(
CachedNetworkParameters ) override {}
HandshakeState GetHandshakeState() const override { return HANDSHAKE_START; }
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> ) override {}
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override {
return nullptr;
}
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override {
return nullptr;
}
bool ExportKeyingMaterial(absl::string_view ,
absl::string_view ,
size_t ,
std::string* ) override {
return false;
}
SSL* GetSsl() const override { return nullptr; }
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override {
return level != ENCRYPTION_ZERO_RTT;
}
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override {
switch (space) {
case INITIAL_DATA:
return ENCRYPTION_INITIAL;
case HANDSHAKE_DATA:
return ENCRYPTION_HANDSHAKE;
case APPLICATION_DATA:
return QuicCryptoStream::session()
->GetEncryptionLevelToSendApplicationData();
default:
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
}
private:
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters> params_;
std::vector<CryptoHandshakeMessage> messages_;
};
class QuicCryptoStreamTest : public QuicTest {
public:
QuicCryptoStreamTest()
: connection_(new MockQuicConnection(&helper_, &alarm_factory_,
Perspective::IS_CLIENT)),
session_(connection_, false) {
EXPECT_CALL(*static_cast<MockPacketWriter*>(connection_->writer()),
WritePacket(_, _, _, _, _, _))
.WillRepeatedly(Return(WriteResult(WRITE_STATUS_OK, 0)));
stream_ = new MockQuicCryptoStream(&session_);
session_.SetCryptoStream(stream_);
session_.Initialize();
message_.set_tag(kSHLO);
message_.SetStringPiece(1, "abc");
message_.SetStringPiece(2, "def");
ConstructHandshakeMessage();
}
QuicCryptoStreamTest(const QuicCryptoStreamTest&) = delete;
QuicCryptoStreamTest& operator=(const QuicCryptoStreamTest&) = delete;
void ConstructHandshakeMessage() {
CryptoFramer framer;
message_data_ = framer.ConstructHandshakeMessage(message_);
}
protected:
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
MockQuicConnection* connection_;
MockQuicSpdySession session_;
MockQuicCryptoStream* stream_;
CryptoHandshakeMessage message_;
std::unique_ptr<QuicData> message_data_;
};
TEST_F(QuicCryptoStreamTest, NotInitiallyConected) {
EXPECT_FALSE(stream_->encryption_established());
EXPECT_FALSE(stream_->one_rtt_keys_available());
}
TEST_F(QuicCryptoStreamTest, ProcessRawData) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
stream_->OnStreamFrame(QuicStreamFrame(
QuicUtils::GetCryptoStreamId(connection_->transport_version()),
false,
0, message_data_->AsStringPiece()));
} else {
stream_->OnCryptoFrame(QuicCryptoFrame(ENCRYPTION_INITIAL, 0,
message_data_->AsStringPiece()));
}
ASSERT_EQ(1u, stream_->messages()->size());
const CryptoHandshakeMessage& message = (*stream_->messages())[0];
EXPECT_EQ(kSHLO, message.tag());
EXPECT_EQ(2u, message.tag_value_map().size());
EXPECT_EQ("abc", crypto_test_utils::GetValueForTag(message, 1));
EXPECT_EQ("def", crypto_test_utils::GetValueForTag(message, 2));
}
TEST_F(QuicCryptoStreamTest, ProcessBadData) {
std::string bad(message_data_->data(), message_data_->length());
const int kFirstTagIndex = sizeof(uint32_t) +
sizeof(uint16_t) +
sizeof(uint16_t);
EXPECT_EQ(1, bad[kFirstTagIndex]);
bad[kFirstTagIndex] = 0x7F;
EXPECT_CALL(*connection_, CloseConnection(QUIC_CRYPTO_TAGS_OUT_OF_ORDER,
testing::_, testing::_));
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
stream_->OnStreamFrame(QuicStreamFrame(
QuicUtils::GetCryptoStreamId(connection_->transport_version()),
false, 0, bad));
} else {
stream_->OnCryptoFrame(
QuicCryptoFrame(ENCRYPTION_INITIAL, 0, bad));
}
}
TEST_F(QuicCryptoStreamTest, NoConnectionLevelFlowControl) {
EXPECT_FALSE(
QuicStreamPeer::StreamContributesToConnectionFlowControl(stream_));
}
TEST_F(QuicCryptoStreamTest, RetransmitCryptoData) {
if (QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 0, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 1350, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
connection_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
stream_->OnStreamFrameLost(0, 1000, false);
EXPECT_TRUE(stream_->HasPendingRetransmission());
stream_->OnStreamFrameLost(1200, 800, false);
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1000, 0, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
150, 1200, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
650, 1350, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->OnCanWrite();
EXPECT_FALSE(stream_->HasPendingRetransmission());
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
}
TEST_F(QuicCryptoStreamTest, RetransmitCryptoDataInCryptoFrames) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
std::unique_ptr<NullEncrypter> encrypter =
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT);
connection_->SetEncrypter(ENCRYPTION_ZERO_RTT, std::move(encrypter));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_ZERO_RTT, data);
QuicCryptoFrame lost_frame = QuicCryptoFrame(ENCRYPTION_ZERO_RTT, 0, 650);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 650, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WritePendingCryptoRetransmission();
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
lost_frame = QuicCryptoFrame(ENCRYPTION_INITIAL, 0, 1000);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_TRUE(stream_->HasPendingCryptoRetransmission());
lost_frame = QuicCryptoFrame(ENCRYPTION_INITIAL, 1200, 150);
stream_->OnCryptoFrameLost(&lost_frame);
lost_frame = QuicCryptoFrame(ENCRYPTION_ZERO_RTT, 0, 650);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1000, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 150, 1200))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_FORWARD_SECURE, 650, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WritePendingCryptoRetransmission();
EXPECT_FALSE(stream_->HasPendingCryptoRetransmission());
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
}
TEST_F(QuicCryptoStreamTest, RetransmitEncryptionHandshakeLevelCryptoFrames) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1000, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1000, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
std::unique_ptr<NullEncrypter> encrypter =
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT);
connection_->SetEncrypter(ENCRYPTION_HANDSHAKE, std::move(encrypter));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_HANDSHAKE);
EXPECT_EQ(ENCRYPTION_HANDSHAKE, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_HANDSHAKE, 1000, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_HANDSHAKE, data);
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
QuicCryptoFrame lost_frame(ENCRYPTION_HANDSHAKE, 0, 200);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_TRUE(stream_->HasPendingCryptoRetransmission());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_HANDSHAKE, 200, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WritePendingCryptoRetransmission();
EXPECT_FALSE(stream_->HasPendingCryptoRetransmission());
}
TEST_F(QuicCryptoStreamTest, NeuterUnencryptedStreamData) {
if (QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 0, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 1350, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
stream_->OnStreamFrameLost(0, 1350, false);
EXPECT_TRUE(stream_->HasPendingRetransmission());
stream_->NeuterUnencryptedStreamData();
EXPECT_FALSE(stream_->HasPendingRetransmission());
stream_->OnStreamFrameLost(0, 1350, false);
EXPECT_FALSE(stream_->HasPendingRetransmission());
stream_->OnStreamFrameLost(1350, 650, false);
EXPECT_TRUE(stream_->HasPendingRetransmission());
stream_->NeuterUnencryptedStreamData();
EXPECT_TRUE(stream_->HasPendingRetransmission());
}
TEST_F(QuicCryptoStreamTest, NeuterUnencryptedCryptoData) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
connection_->SetEncrypter(
ENCRYPTION_ZERO_RTT,
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
std::unique_ptr<NullEncrypter> encrypter =
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT);
connection_->SetEncrypter(ENCRYPTION_ZERO_RTT, std::move(encrypter));
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_ZERO_RTT, data);
QuicCryptoFrame lost_frame(ENCRYPTION_INITIAL, 0, 1350);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_TRUE(stream_->HasPendingCryptoRetransmission());
stream_->NeuterUnencryptedStreamData();
EXPECT_FALSE(stream_->HasPendingCryptoRetransmission());
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_FALSE(stream_->HasPendingCryptoRetransmission());
lost_frame = QuicCryptoFrame(ENCRYPTION_ZERO_RTT, 0, 650);
stream_->OnCryptoFrameLost(&lost_frame);
EXPECT_TRUE(stream_->HasPendingCryptoRetransmission());
stream_->NeuterUnencryptedStreamData();
EXPECT_TRUE(stream_->HasPendingCryptoRetransmission());
}
TEST_F(QuicCryptoStreamTest, RetransmitStreamData) {
if (QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 0, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 1350, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
connection_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
QuicByteCount newly_acked_length = 0;
stream_->OnStreamFrameAcked(2000, 500, false, QuicTime::Delta::Zero(),
QuicTime::Zero(), &newly_acked_length);
EXPECT_EQ(500u, newly_acked_length);
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
650, 1350, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_.ConsumeData(
QuicUtils::GetCryptoStreamId(connection_->transport_version()), 150,
1350, NO_FIN, HANDSHAKE_RETRANSMISSION, std::nullopt);
}));
EXPECT_FALSE(stream_->RetransmitStreamData(1350, 1350, false,
HANDSHAKE_RETRANSMISSION));
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
650, 1350, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
200, 2500, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
EXPECT_TRUE(stream_->RetransmitStreamData(1350, 1350, false,
HANDSHAKE_RETRANSMISSION));
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _)).Times(0);
EXPECT_TRUE(
stream_->RetransmitStreamData(0, 0, false, HANDSHAKE_RETRANSMISSION));
}
TEST_F(QuicCryptoStreamTest, RetransmitStreamDataWithCryptoFrames) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
std::unique_ptr<NullEncrypter> encrypter =
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT);
connection_->SetEncrypter(ENCRYPTION_ZERO_RTT, std::move(encrypter));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_ZERO_RTT, data);
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
QuicCryptoFrame acked_frame(ENCRYPTION_ZERO_RTT, 650, 500);
EXPECT_TRUE(
stream_->OnCryptoFrameAcked(acked_frame, QuicTime::Delta::Zero()));
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_FORWARD_SECURE, 150, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
QuicCryptoFrame frame_to_retransmit(ENCRYPTION_ZERO_RTT, 0, 150);
stream_->RetransmitData(&frame_to_retransmit, HANDSHAKE_RETRANSMISSION);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_FORWARD_SECURE, 650, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
EXPECT_CALL(*connection_,
SendCryptoData(ENCRYPTION_FORWARD_SECURE, 200, 1150))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
frame_to_retransmit = QuicCryptoFrame(ENCRYPTION_ZERO_RTT, 0, 1350);
stream_->RetransmitData(&frame_to_retransmit, HANDSHAKE_RETRANSMISSION);
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
QuicCryptoFrame empty_frame(ENCRYPTION_FORWARD_SECURE, 0, 0);
stream_->RetransmitData(&empty_frame, HANDSHAKE_RETRANSMISSION);
}
TEST_F(QuicCryptoStreamTest, HasUnackedCryptoData) {
if (QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
std::string data(1350, 'a');
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 0, _, _, _))
.WillOnce(testing::Return(QuicConsumedData(0, false)));
stream_->WriteOrBufferData(data, false, nullptr);
EXPECT_FALSE(stream_->IsWaitingForAcks());
EXPECT_TRUE(session_.HasUnackedCryptoData());
EXPECT_CALL(
session_,
WritevData(QuicUtils::GetCryptoStreamId(connection_->transport_version()),
1350, 0, _, _, _))
.WillOnce(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
stream_->OnCanWrite();
EXPECT_TRUE(stream_->IsWaitingForAcks());
EXPECT_TRUE(session_.HasUnackedCryptoData());
}
TEST_F(QuicCryptoStreamTest, HasUnackedCryptoDataWithCryptoFrames) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1350, 0))
.WillOnce(Invoke(connection_,
&MockQuicConnection::QuicConnection_SendCryptoData));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
EXPECT_TRUE(stream_->IsWaitingForAcks());
EXPECT_TRUE(session_.HasUnackedCryptoData());
}
TEST_F(QuicCryptoStreamTest, CryptoMessageFramingOverhead) {
for (const ParsedQuicVersion& version :
AllSupportedVersionsWithQuicCrypto()) {
SCOPED_TRACE(version);
QuicByteCount expected_overhead = 52;
if (version.HasLongHeaderLengths()) {
expected_overhead += 3;
}
if (version.HasLengthPrefixedConnectionIds()) {
expected_overhead += 1;
}
EXPECT_EQ(expected_overhead,
QuicCryptoStream::CryptoMessageFramingOverhead(
version.transport_version, TestConnectionId()));
}
}
TEST_F(QuicCryptoStreamTest, WriteCryptoDataExceedsSendBufferLimit) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
int32_t buffer_limit = GetQuicFlag(quic_max_buffered_crypto_bytes);
EXPECT_FALSE(stream_->HasBufferedCryptoFrames());
int32_t over_limit = buffer_limit + 1;
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, over_limit, 0))
.WillOnce(Return(over_limit));
std::string large_data(over_limit, 'a');
stream_->WriteCryptoData(ENCRYPTION_INITIAL, large_data);
EXPECT_FALSE(stream_->HasBufferedCryptoFrames());
EXPECT_CALL(*connection_,
SendCryptoData(ENCRYPTION_INITIAL, buffer_limit, over_limit))
.WillOnce(Return(1));
std::string data(buffer_limit, 'a');
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
EXPECT_TRUE(stream_->HasBufferedCryptoFrames());
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
std::string data2(1, 'a');
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data2);
EXPECT_TRUE(stream_->HasBufferedCryptoFrames());
if (GetQuicFlag(quic_bounded_crypto_send_buffer)) {
EXPECT_CALL(*connection_, CloseConnection(QUIC_INTERNAL_ERROR, _, _));
EXPECT_QUIC_BUG(
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data2),
"Too much data for crypto send buffer with level: ENCRYPTION_INITIAL, "
"current_buffer_size: 16384, data length: 1");
}
}
TEST_F(QuicCryptoStreamTest, WriteBufferedCryptoFrames) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_FALSE(stream_->HasBufferedCryptoFrames());
InSequence s;
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
std::string data(1350, 'a');
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 1350, 0))
.WillOnce(Return(1000));
stream_->WriteCryptoData(ENCRYPTION_INITIAL, data);
EXPECT_TRUE(stream_->HasBufferedCryptoFrames());
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0);
connection_->SetEncrypter(
ENCRYPTION_ZERO_RTT,
std::make_unique<NullEncrypter>(Perspective::IS_CLIENT));
connection_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
stream_->WriteCryptoData(ENCRYPTION_ZERO_RTT, data);
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_INITIAL, 350, 1000))
.WillOnce(Return(350));
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 1350, 0))
.WillOnce(Return(1000));
stream_->WriteBufferedCryptoFrames();
EXPECT_TRUE(stream_->HasBufferedCryptoFrames());
EXPECT_EQ(ENCRYPTION_ZERO_RTT, connection_->encryption_level());
EXPECT_CALL(*connection_, SendCryptoData(ENCRYPTION_ZERO_RTT, 350, 1000))
.WillOnce(Return(350));
stream_->WriteBufferedCryptoFrames();
EXPECT_FALSE(stream_->HasBufferedCryptoFrames());
}
TEST_F(QuicCryptoStreamTest, LimitBufferedCryptoData) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
std::string large_frame(2 * GetQuicFlag(quic_max_buffered_crypto_bytes), 'a');
QuicStreamOffset offset = 1;
stream_->OnCryptoFrame(
QuicCryptoFrame(ENCRYPTION_INITIAL, offset, large_frame));
}
TEST_F(QuicCryptoStreamTest, CloseConnectionWithZeroRttCryptoFrame) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_CALL(*connection_,
CloseConnection(IETF_QUIC_PROTOCOL_VIOLATION, _, _));
test::QuicConnectionPeer::SetLastDecryptedLevel(connection_,
ENCRYPTION_ZERO_RTT);
QuicStreamOffset offset = 1;
stream_->OnCryptoFrame(QuicCryptoFrame(ENCRYPTION_ZERO_RTT, offset, "data"));
}
TEST_F(QuicCryptoStreamTest, RetransmitCryptoFramesAndPartialWrite) {
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
return;
}
EXPECT_CALL(*connection_, SendCryptoData(_, _, _)).Times(0); |
244 | cpp | google/quiche | quic_versions | quiche/quic/core/quic_versions.cc | quiche/quic/core/quic_versions_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_VERSIONS_H_
#define QUICHE_QUIC_CORE_QUIC_VERSIONS_H_
#include <cstdint>
#include <string>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_tag.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
enum QuicTransportVersion {
QUIC_VERSION_UNSUPPORTED = 0,
QUIC_VERSION_46 = 46,
QUIC_VERSION_IETF_DRAFT_29 = 73,
QUIC_VERSION_IETF_RFC_V1 = 80,
QUIC_VERSION_IETF_RFC_V2 = 82,
QUIC_VERSION_RESERVED_FOR_NEGOTIATION = 999,
};
QUICHE_EXPORT std::string QuicVersionToString(
QuicTransportVersion transport_version);
enum HandshakeProtocol {
PROTOCOL_UNSUPPORTED,
PROTOCOL_QUIC_CRYPTO,
PROTOCOL_TLS1_3,
};
QUICHE_EXPORT std::string HandshakeProtocolToString(
HandshakeProtocol handshake_protocol);
QUICHE_EXPORT constexpr bool QuicVersionUsesCryptoFrames(
QuicTransportVersion transport_version) {
return transport_version > QUIC_VERSION_46;
}
QUICHE_EXPORT constexpr bool ParsedQuicVersionIsValid(
HandshakeProtocol handshake_protocol,
QuicTransportVersion transport_version) {
bool transport_version_is_valid = false;
constexpr QuicTransportVersion valid_transport_versions[] = {
QUIC_VERSION_IETF_RFC_V2,
QUIC_VERSION_IETF_RFC_V1,
QUIC_VERSION_IETF_DRAFT_29,
QUIC_VERSION_46,
QUIC_VERSION_RESERVED_FOR_NEGOTIATION,
QUIC_VERSION_UNSUPPORTED,
};
for (size_t i = 0; i < ABSL_ARRAYSIZE(valid_transport_versions); ++i) {
if (transport_version == valid_transport_versions[i]) {
transport_version_is_valid = true;
break;
}
}
if (!transport_version_is_valid) {
return false;
}
switch (handshake_protocol) {
case PROTOCOL_UNSUPPORTED:
return transport_version == QUIC_VERSION_UNSUPPORTED;
case PROTOCOL_QUIC_CRYPTO:
return transport_version != QUIC_VERSION_UNSUPPORTED &&
transport_version != QUIC_VERSION_RESERVED_FOR_NEGOTIATION &&
transport_version != QUIC_VERSION_IETF_DRAFT_29 &&
transport_version != QUIC_VERSION_IETF_RFC_V1 &&
transport_version != QUIC_VERSION_IETF_RFC_V2;
case PROTOCOL_TLS1_3:
return transport_version != QUIC_VERSION_UNSUPPORTED &&
QuicVersionUsesCryptoFrames(transport_version);
}
return false;
}
struct QUICHE_EXPORT ParsedQuicVersion {
HandshakeProtocol handshake_protocol;
QuicTransportVersion transport_version;
constexpr ParsedQuicVersion(HandshakeProtocol handshake_protocol,
QuicTransportVersion transport_version)
: handshake_protocol(handshake_protocol),
transport_version(transport_version) {
QUICHE_DCHECK(
ParsedQuicVersionIsValid(handshake_protocol, transport_version))
<< QuicVersionToString(transport_version) << " "
<< HandshakeProtocolToString(handshake_protocol);
}
constexpr ParsedQuicVersion(const ParsedQuicVersion& other)
: ParsedQuicVersion(other.handshake_protocol, other.transport_version) {}
ParsedQuicVersion& operator=(const ParsedQuicVersion& other) {
QUICHE_DCHECK(ParsedQuicVersionIsValid(other.handshake_protocol,
other.transport_version))
<< QuicVersionToString(other.transport_version) << " "
<< HandshakeProtocolToString(other.handshake_protocol);
if (this != &other) {
handshake_protocol = other.handshake_protocol;
transport_version = other.transport_version;
}
return *this;
}
bool operator==(const ParsedQuicVersion& other) const {
return handshake_protocol == other.handshake_protocol &&
transport_version == other.transport_version;
}
bool operator!=(const ParsedQuicVersion& other) const {
return handshake_protocol != other.handshake_protocol ||
transport_version != other.transport_version;
}
static constexpr ParsedQuicVersion RFCv2() {
return ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_IETF_RFC_V2);
}
static constexpr ParsedQuicVersion RFCv1() {
return ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_IETF_RFC_V1);
}
static constexpr ParsedQuicVersion Draft29() {
return ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_IETF_DRAFT_29);
}
static constexpr ParsedQuicVersion Q046() {
return ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46);
}
static constexpr ParsedQuicVersion Unsupported() {
return ParsedQuicVersion(PROTOCOL_UNSUPPORTED, QUIC_VERSION_UNSUPPORTED);
}
static constexpr ParsedQuicVersion ReservedForNegotiation() {
return ParsedQuicVersion(PROTOCOL_TLS1_3,
QUIC_VERSION_RESERVED_FOR_NEGOTIATION);
}
bool IsKnown() const;
bool KnowsWhichDecrypterToUse() const;
bool UsesInitialObfuscators() const;
bool AllowsLowFlowControlLimits() const;
bool HasHeaderProtection() const;
bool SupportsRetry() const;
bool SendsVariableLengthPacketNumberInLongHeader() const;
bool AllowsVariableLengthConnectionIds() const;
bool SupportsClientConnectionIds() const;
bool HasLengthPrefixedConnectionIds() const;
bool SupportsAntiAmplificationLimit() const;
bool CanSendCoalescedPackets() const;
bool SupportsGoogleAltSvcFormat() const;
bool UsesHttp3() const;
bool HasLongHeaderLengths() const;
bool UsesCryptoFrames() const;
bool HasIetfQuicFrames() const;
bool UsesLegacyTlsExtension() const;
bool UsesTls() const;
bool UsesQuicCrypto() const;
bool UsesV2PacketTypes() const;
bool AlpnDeferToRFCv1() const;
};
QUICHE_EXPORT ParsedQuicVersion UnsupportedQuicVersion();
QUICHE_EXPORT ParsedQuicVersion QuicVersionReservedForNegotiation();
QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
const ParsedQuicVersion& version);
using ParsedQuicVersionVector = std::vector<ParsedQuicVersion>;
QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
const ParsedQuicVersionVector& versions);
using QuicVersionLabel = uint32_t;
using QuicVersionLabelVector = std::vector<QuicVersionLabel>;
QUICHE_EXPORT QuicVersionLabel MakeVersionLabel(uint8_t a, uint8_t b, uint8_t c,
uint8_t d);
QUICHE_EXPORT std::ostream& operator<<(
std::ostream& os, const QuicVersionLabelVector& version_labels);
constexpr std::array<HandshakeProtocol, 2> SupportedHandshakeProtocols() {
return {PROTOCOL_TLS1_3, PROTOCOL_QUIC_CRYPTO};
}
constexpr std::array<ParsedQuicVersion, 4> SupportedVersions() {
return {
ParsedQuicVersion::RFCv2(),
ParsedQuicVersion::RFCv1(),
ParsedQuicVersion::Draft29(),
ParsedQuicVersion::Q046(),
};
}
using QuicTransportVersionVector = std::vector<QuicTransportVersion>;
QUICHE_EXPORT std::ostream& operator<<(
std::ostream& os, const QuicTransportVersionVector& transport_versions);
QUICHE_EXPORT ParsedQuicVersionVector AllSupportedVersions();
QUICHE_EXPORT ParsedQuicVersionVector CurrentSupportedVersions();
QUICHE_EXPORT ParsedQuicVersionVector ObsoleteSupportedVersions();
QUICHE_EXPORT bool IsObsoleteSupportedVersion(ParsedQuicVersion version);
QUICHE_EXPORT ParsedQuicVersionVector CurrentSupportedVersionsForClients();
QUICHE_EXPORT ParsedQuicVersionVector
FilterSupportedVersions(ParsedQuicVersionVector versions);
QUICHE_EXPORT ParsedQuicVersionVector AllSupportedVersionsWithQuicCrypto();
QUICHE_EXPORT ParsedQuicVersionVector CurrentSupportedVersionsWithQuicCrypto();
QUICHE_EXPORT ParsedQuicVersionVector AllSupportedVersionsWithTls();
QUICHE_EXPORT ParsedQuicVersionVector CurrentSupportedVersionsWithTls();
QUICHE_EXPORT ParsedQuicVersionVector CurrentSupportedHttp3Versions();
QUICHE_EXPORT ParsedQuicVersionVector
ParsedVersionOfIndex(const ParsedQuicVersionVector& versions, int index);
QUICHE_EXPORT ParsedQuicVersion
ParseQuicVersionLabel(QuicVersionLabel version_label);
QUICHE_EXPORT ParsedQuicVersionVector
ParseQuicVersionLabelVector(const QuicVersionLabelVector& version_labels);
QUICHE_EXPORT ParsedQuicVersion
ParseQuicVersionString(absl::string_view version_string);
QUICHE_EXPORT ParsedQuicVersionVector
ParseQuicVersionVectorString(absl::string_view versions_string);
QUICHE_EXPORT QuicVersionLabel
CreateQuicVersionLabel(ParsedQuicVersion parsed_version);
QUICHE_EXPORT QuicVersionLabelVector
CreateQuicVersionLabelVector(const ParsedQuicVersionVector& versions);
QUICHE_EXPORT std::string QuicVersionLabelToString(
QuicVersionLabel version_label);
QUICHE_EXPORT ParsedQuicVersion
ParseQuicVersionLabelString(absl::string_view version_label_string);
QUICHE_EXPORT std::string QuicVersionLabelVectorToString(
const QuicVersionLabelVector& version_labels, const std::string& separator,
size_t skip_after_nth_version);
QUICHE_EXPORT inline std::string QuicVersionLabelVectorToString(
const QuicVersionLabelVector& version_labels) {
return QuicVersionLabelVectorToString(version_labels, ",",
std::numeric_limits<size_t>::max());
}
QUICHE_EXPORT std::string ParsedQuicVersionToString(ParsedQuicVersion version);
QUICHE_EXPORT QuicTransportVersionVector AllSupportedTransportVersions();
QUICHE_EXPORT std::string QuicTransportVersionVectorToString(
const QuicTransportVersionVector& versions);
QUICHE_EXPORT std::string ParsedQuicVersionVectorToString(
const ParsedQuicVersionVector& versions);
QUICHE_EXPORT std::string ParsedQuicVersionVectorToString(
const ParsedQuicVersionVector& versions, const std::string& separator,
size_t skip_after_nth_version);
QUICHE_EXPORT inline std::string ParsedQuicVersionVectorToString(
const ParsedQuicVersionVector& versions) {
return ParsedQuicVersionVectorToString(versions, ",",
std::numeric_limits<size_t>::max());
}
QUICHE_EXPORT constexpr bool VersionUsesHttp3(
QuicTransportVersion transport_version) {
return transport_version >= QUIC_VERSION_IETF_DRAFT_29;
}
QUICHE_EXPORT constexpr bool QuicVersionHasLongHeaderLengths(
QuicTransportVersion transport_version) {
return transport_version > QUIC_VERSION_46;
}
QUICHE_EXPORT constexpr bool VersionHasIetfQuicFrames(
QuicTransportVersion transport_version) {
return VersionUsesHttp3(transport_version);
}
QUICHE_EXPORT bool VersionHasLengthPrefixedConnectionIds(
QuicTransportVersion transport_version);
QUICHE_EXPORT bool VersionSupportsGoogleAltSvcFormat(
QuicTransportVersion transport_version);
QUICHE_EXPORT bool VersionAllowsVariableLengthConnectionIds(
QuicTransportVersion transport_version);
QUICHE_EXPORT bool QuicVersionLabelUses4BitConnectionIdLength(
QuicVersionLabel version_label);
QUICHE_EXPORT std::string AlpnForVersion(ParsedQuicVersion parsed_version);
QUICHE_EXPORT void QuicEnableVersion(const ParsedQuicVersion& version);
QUICHE_EXPORT void QuicDisableVersion(const ParsedQuicVersion& version);
QUICHE_EXPORT bool QuicVersionIsEnabled(const ParsedQuicVersion& version);
}
#endif
#include "quiche/quic/core/quic_versions.h"
#include <algorithm>
#include <ostream>
#include <string>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/numbers.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_split.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_tag.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/quiche_endian.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
namespace {
QuicVersionLabel CreateRandomVersionLabelForNegotiation() {
QuicVersionLabel result;
if (!GetQuicFlag(quic_disable_version_negotiation_grease_randomness)) {
QuicRandom::GetInstance()->RandBytes(&result, sizeof(result));
} else {
result = MakeVersionLabel(0xd1, 0x57, 0x38, 0x3f);
}
result &= 0xf0f0f0f0;
result |= 0x0a0a0a0a;
return result;
}
void SetVersionFlag(const ParsedQuicVersion& version, bool should_enable) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
const bool enable = should_enable;
const bool disable = !should_enable;
if (version == ParsedQuicVersion::RFCv2()) {
SetQuicReloadableFlag(quic_enable_version_rfcv2, enable);
} else if (version == ParsedQuicVersion::RFCv1()) {
SetQuicReloadableFlag(quic_disable_version_rfcv1, disable);
} else if (version == ParsedQuicVersion::Draft29()) {
SetQuicReloadableFlag(quic_disable_version_draft_29, disable);
} else if (version == ParsedQuicVersion::Q046()) {
SetQuicReloadableFlag(quic_disable_version_q046, disable);
} else {
QUIC_BUG(quic_bug_10589_1)
<< "Cannot " << (enable ? "en" : "dis") << "able version " << version;
}
}
}
bool ParsedQuicVersion::IsKnown() const {
QUICHE_DCHECK(ParsedQuicVersionIsValid(handshake_protocol, transport_version))
<< QuicVersionToString(transport_version) << " "
<< HandshakeProtocolToString(handshake_protocol);
return transport_version != QUIC_VERSION_UNSUPPORTED;
}
bool ParsedQuicVersion::KnowsWhichDecrypterToUse() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::UsesInitialObfuscators() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::AllowsLowFlowControlLimits() const {
QUICHE_DCHECK(IsKnown());
return UsesHttp3();
}
bool ParsedQuicVersion::HasHeaderProtection() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::SupportsRetry() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::SendsVariableLengthPacketNumberInLongHeader() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::AllowsVariableLengthConnectionIds() const {
QUICHE_DCHECK(IsKnown());
return VersionAllowsVariableLengthConnectionIds(transport_version);
}
bool ParsedQuicVersion::SupportsClientConnectionIds() const {
QUICHE_DCHECK(IsKnown());
return transport_version > QUIC_VERSION_46;
}
bool ParsedQuicVersion::HasLengthPrefixedConnectionIds() const {
QUICHE_DCHECK(IsKnown());
return VersionHasLengthPrefixedConnectionIds(transport_version);
}
bool ParsedQuicVersion::SupportsAntiAmplificationLimit() const {
QUICHE_DCHECK(IsKnown());
return UsesHttp3();
}
bool ParsedQuicVersion::CanSendCoalescedPackets() const {
QUICHE_DCHECK(IsKnown());
return HasLongHeaderLengths() && UsesTls();
}
bool ParsedQuicVersion::SupportsGoogleAltSvcFormat() const {
QUICHE_DCHECK(IsKnown());
return VersionSupportsGoogleAltSvcFormat(transport_version);
}
bool ParsedQuicVersion::UsesHttp3() const {
QUICHE_DCHECK(IsKnown());
return VersionUsesHttp3(transport_version);
}
bool ParsedQuicVersion::HasLongHeaderLengths() const {
QUICHE_DCHECK(IsKnown());
return QuicVersionHasLongHeaderLengths(transport_version);
}
bool ParsedQuicVersion::UsesCryptoFrames() const {
QUICHE_DCHECK(IsKnown());
return QuicVersionUsesCryptoFrames(transport_version);
}
bool ParsedQuicVersion::HasIetfQuicFrames() const {
QUICHE_DCHECK(IsKnown());
return VersionHasIetfQuicFrames(transport_version);
}
bool ParsedQuicVersion::UsesLegacyTlsExtension() const {
QUICHE_DCHECK(IsKnown());
return UsesTls() && transport_version <= QUIC_VERSION_IETF_DRAFT_29;
}
bool ParsedQuicVersion::UsesTls() const {
QUICHE_DCHECK(IsKnown());
return handshake_protocol == PROTOCOL_TLS1_3;
}
bool ParsedQuicVersion::UsesQuicCrypto() const {
QUICHE_DCHECK(IsKnown());
return handshake_protocol == PROTOCOL_QUIC_CRYPTO;
}
bool ParsedQuicVersion::UsesV2PacketTypes() const {
QUICHE_DCHECK(IsKnown());
return transport_versi | #include "quiche/quic/core/quic_versions.h"
#include <cstddef>
#include <sstream>
#include "absl/algorithm/container.h"
#include "absl/base/macros.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
using ::testing::ElementsAre;
using ::testing::IsEmpty;
TEST(QuicVersionsTest, CreateQuicVersionLabelUnsupported) {
EXPECT_QUIC_BUG(
CreateQuicVersionLabel(UnsupportedQuicVersion()),
"Unsupported version QUIC_VERSION_UNSUPPORTED PROTOCOL_UNSUPPORTED");
}
TEST(QuicVersionsTest, KnownAndValid) {
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_TRUE(version.IsKnown());
EXPECT_TRUE(ParsedQuicVersionIsValid(version.handshake_protocol,
version.transport_version));
}
ParsedQuicVersion unsupported = UnsupportedQuicVersion();
EXPECT_FALSE(unsupported.IsKnown());
EXPECT_TRUE(ParsedQuicVersionIsValid(unsupported.handshake_protocol,
unsupported.transport_version));
ParsedQuicVersion reserved = QuicVersionReservedForNegotiation();
EXPECT_TRUE(reserved.IsKnown());
EXPECT_TRUE(ParsedQuicVersionIsValid(reserved.handshake_protocol,
reserved.transport_version));
EXPECT_FALSE(ParsedQuicVersionIsValid(PROTOCOL_TLS1_3, QUIC_VERSION_46));
EXPECT_FALSE(ParsedQuicVersionIsValid(PROTOCOL_QUIC_CRYPTO,
QUIC_VERSION_IETF_DRAFT_29));
EXPECT_FALSE(ParsedQuicVersionIsValid(PROTOCOL_QUIC_CRYPTO,
static_cast<QuicTransportVersion>(33)));
EXPECT_FALSE(ParsedQuicVersionIsValid(PROTOCOL_QUIC_CRYPTO,
static_cast<QuicTransportVersion>(99)));
EXPECT_FALSE(ParsedQuicVersionIsValid(PROTOCOL_TLS1_3,
static_cast<QuicTransportVersion>(99)));
}
TEST(QuicVersionsTest, Features) {
ParsedQuicVersion parsed_version_q046 = ParsedQuicVersion::Q046();
ParsedQuicVersion parsed_version_draft_29 = ParsedQuicVersion::Draft29();
EXPECT_TRUE(parsed_version_q046.IsKnown());
EXPECT_FALSE(parsed_version_q046.KnowsWhichDecrypterToUse());
EXPECT_FALSE(parsed_version_q046.UsesInitialObfuscators());
EXPECT_FALSE(parsed_version_q046.AllowsLowFlowControlLimits());
EXPECT_FALSE(parsed_version_q046.HasHeaderProtection());
EXPECT_FALSE(parsed_version_q046.SupportsRetry());
EXPECT_FALSE(
parsed_version_q046.SendsVariableLengthPacketNumberInLongHeader());
EXPECT_FALSE(parsed_version_q046.AllowsVariableLengthConnectionIds());
EXPECT_FALSE(parsed_version_q046.SupportsClientConnectionIds());
EXPECT_FALSE(parsed_version_q046.HasLengthPrefixedConnectionIds());
EXPECT_FALSE(parsed_version_q046.SupportsAntiAmplificationLimit());
EXPECT_FALSE(parsed_version_q046.CanSendCoalescedPackets());
EXPECT_TRUE(parsed_version_q046.SupportsGoogleAltSvcFormat());
EXPECT_FALSE(parsed_version_q046.UsesHttp3());
EXPECT_FALSE(parsed_version_q046.HasLongHeaderLengths());
EXPECT_FALSE(parsed_version_q046.UsesCryptoFrames());
EXPECT_FALSE(parsed_version_q046.HasIetfQuicFrames());
EXPECT_FALSE(parsed_version_q046.UsesTls());
EXPECT_TRUE(parsed_version_q046.UsesQuicCrypto());
EXPECT_TRUE(parsed_version_draft_29.IsKnown());
EXPECT_TRUE(parsed_version_draft_29.KnowsWhichDecrypterToUse());
EXPECT_TRUE(parsed_version_draft_29.UsesInitialObfuscators());
EXPECT_TRUE(parsed_version_draft_29.AllowsLowFlowControlLimits());
EXPECT_TRUE(parsed_version_draft_29.HasHeaderProtection());
EXPECT_TRUE(parsed_version_draft_29.SupportsRetry());
EXPECT_TRUE(
parsed_version_draft_29.SendsVariableLengthPacketNumberInLongHeader());
EXPECT_TRUE(parsed_version_draft_29.AllowsVariableLengthConnectionIds());
EXPECT_TRUE(parsed_version_draft_29.SupportsClientConnectionIds());
EXPECT_TRUE(parsed_version_draft_29.HasLengthPrefixedConnectionIds());
EXPECT_TRUE(parsed_version_draft_29.SupportsAntiAmplificationLimit());
EXPECT_TRUE(parsed_version_draft_29.CanSendCoalescedPackets());
EXPECT_FALSE(parsed_version_draft_29.SupportsGoogleAltSvcFormat());
EXPECT_TRUE(parsed_version_draft_29.UsesHttp3());
EXPECT_TRUE(parsed_version_draft_29.HasLongHeaderLengths());
EXPECT_TRUE(parsed_version_draft_29.UsesCryptoFrames());
EXPECT_TRUE(parsed_version_draft_29.HasIetfQuicFrames());
EXPECT_TRUE(parsed_version_draft_29.UsesTls());
EXPECT_FALSE(parsed_version_draft_29.UsesQuicCrypto());
}
TEST(QuicVersionsTest, ParseQuicVersionLabel) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ(ParsedQuicVersion::Q046(),
ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '6')));
EXPECT_EQ(ParsedQuicVersion::Draft29(),
ParseQuicVersionLabel(MakeVersionLabel(0xff, 0x00, 0x00, 0x1d)));
EXPECT_EQ(ParsedQuicVersion::RFCv1(),
ParseQuicVersionLabel(MakeVersionLabel(0x00, 0x00, 0x00, 0x01)));
EXPECT_EQ(ParsedQuicVersion::RFCv2(),
ParseQuicVersionLabel(MakeVersionLabel(0x6b, 0x33, 0x43, 0xcf)));
EXPECT_EQ((ParsedQuicVersionVector{ParsedQuicVersion::RFCv2(),
ParsedQuicVersion::RFCv1(),
ParsedQuicVersion::Draft29()}),
ParseQuicVersionLabelVector(QuicVersionLabelVector{
MakeVersionLabel(0x6b, 0x33, 0x43, 0xcf),
MakeVersionLabel(0x00, 0x00, 0x00, 0x01),
MakeVersionLabel(0xaa, 0xaa, 0xaa, 0xaa),
MakeVersionLabel(0xff, 0x00, 0x00, 0x1d)}));
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_EQ(version, ParseQuicVersionLabel(CreateQuicVersionLabel(version)));
}
}
TEST(QuicVersionsTest, ParseQuicVersionString) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ(ParsedQuicVersion::Q046(),
ParseQuicVersionString("QUIC_VERSION_46"));
EXPECT_EQ(ParsedQuicVersion::Q046(), ParseQuicVersionString("46"));
EXPECT_EQ(ParsedQuicVersion::Q046(), ParseQuicVersionString("Q046"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString(""));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("Q 46"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("Q046 "));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("99"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("70"));
EXPECT_EQ(ParsedQuicVersion::Draft29(), ParseQuicVersionString("ff00001d"));
EXPECT_EQ(ParsedQuicVersion::Draft29(), ParseQuicVersionString("draft29"));
EXPECT_EQ(ParsedQuicVersion::Draft29(), ParseQuicVersionString("h3-29"));
EXPECT_EQ(ParsedQuicVersion::RFCv1(), ParseQuicVersionString("00000001"));
EXPECT_EQ(ParsedQuicVersion::RFCv1(), ParseQuicVersionString("h3"));
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_EQ(version,
ParseQuicVersionString(ParsedQuicVersionToString(version)));
EXPECT_EQ(version, ParseQuicVersionString(QuicVersionLabelToString(
CreateQuicVersionLabel(version))));
if (!version.AlpnDeferToRFCv1()) {
EXPECT_EQ(version, ParseQuicVersionString(AlpnForVersion(version)));
}
}
}
TEST(QuicVersionsTest, ParseQuicVersionVectorString) {
ParsedQuicVersion version_q046 = ParsedQuicVersion::Q046();
ParsedQuicVersion version_draft_29 = ParsedQuicVersion::Draft29();
EXPECT_THAT(ParseQuicVersionVectorString(""), IsEmpty());
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-Q046"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-Q046, h3-29"),
ElementsAre(version_q046, version_draft_29));
EXPECT_THAT(ParseQuicVersionVectorString("h3-29,h3-Q046,h3-29"),
ElementsAre(version_draft_29, version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-29, h3-Q046"),
ElementsAre(version_draft_29, version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46,h3-29"),
ElementsAre(version_q046, version_draft_29));
EXPECT_THAT(ParseQuicVersionVectorString("h3-29,QUIC_VERSION_46"),
ElementsAre(version_draft_29, version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46, h3-29"),
ElementsAre(version_q046, version_draft_29));
EXPECT_THAT(ParseQuicVersionVectorString("h3-29, QUIC_VERSION_46"),
ElementsAre(version_draft_29, version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-29,QUIC_VERSION_46"),
ElementsAre(version_draft_29, version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46,h3-29"),
ElementsAre(version_q046, version_draft_29));
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46, QUIC_VERSION_46"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-Q046, h3-Q046"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("h3-Q046, QUIC_VERSION_46"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString(
"QUIC_VERSION_46, h3-Q046, QUIC_VERSION_46, h3-Q046"),
ElementsAre(version_q046));
EXPECT_THAT(ParseQuicVersionVectorString("QUIC_VERSION_46, h3-29, h3-Q046"),
ElementsAre(version_q046, version_draft_29));
EXPECT_THAT(ParseQuicVersionVectorString("99"), IsEmpty());
EXPECT_THAT(ParseQuicVersionVectorString("70"), IsEmpty());
EXPECT_THAT(ParseQuicVersionVectorString("h3-01"), IsEmpty());
EXPECT_THAT(ParseQuicVersionVectorString("h3-01,h3-29"),
ElementsAre(version_draft_29));
}
TEST(QuicVersionsTest, CreateQuicVersionLabel) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ(0x51303436u, CreateQuicVersionLabel(ParsedQuicVersion::Q046()));
EXPECT_EQ(0xff00001du, CreateQuicVersionLabel(ParsedQuicVersion::Draft29()));
EXPECT_EQ(0x00000001u, CreateQuicVersionLabel(ParsedQuicVersion::RFCv1()));
EXPECT_EQ(0x6b3343cfu, CreateQuicVersionLabel(ParsedQuicVersion::RFCv2()));
EXPECT_EQ(
0xda5a3a3au & 0x0f0f0f0f,
CreateQuicVersionLabel(ParsedQuicVersion::ReservedForNegotiation()) &
0x0f0f0f0f);
SetQuicFlag(quic_disable_version_negotiation_grease_randomness, true);
EXPECT_EQ(0xda5a3a3au, CreateQuicVersionLabel(
ParsedQuicVersion::ReservedForNegotiation()));
}
TEST(QuicVersionsTest, QuicVersionLabelToString) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ("Q046", QuicVersionLabelToString(
CreateQuicVersionLabel(ParsedQuicVersion::Q046())));
EXPECT_EQ("ff00001d", QuicVersionLabelToString(CreateQuicVersionLabel(
ParsedQuicVersion::Draft29())));
EXPECT_EQ("00000001", QuicVersionLabelToString(CreateQuicVersionLabel(
ParsedQuicVersion::RFCv1())));
EXPECT_EQ("6b3343cf", QuicVersionLabelToString(CreateQuicVersionLabel(
ParsedQuicVersion::RFCv2())));
QuicVersionLabelVector version_labels = {
MakeVersionLabel('Q', '0', '3', '5'),
MakeVersionLabel('T', '0', '3', '8'),
MakeVersionLabel(0xff, 0, 0, 7),
};
EXPECT_EQ("Q035", QuicVersionLabelToString(version_labels[0]));
EXPECT_EQ("T038", QuicVersionLabelToString(version_labels[1]));
EXPECT_EQ("ff000007", QuicVersionLabelToString(version_labels[2]));
EXPECT_EQ("Q035,T038,ff000007",
QuicVersionLabelVectorToString(version_labels));
EXPECT_EQ("Q035:T038:ff000007",
QuicVersionLabelVectorToString(version_labels, ":", 2));
EXPECT_EQ("Q035|T038|...",
QuicVersionLabelVectorToString(version_labels, "|", 1));
std::ostringstream os;
os << version_labels;
EXPECT_EQ("Q035,T038,ff000007", os.str());
}
TEST(QuicVersionsTest, ParseQuicVersionLabelString) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ(ParsedQuicVersion::Q046(), ParseQuicVersionLabelString("Q046"));
EXPECT_EQ(ParsedQuicVersion::Draft29(),
ParseQuicVersionLabelString("ff00001d"));
EXPECT_EQ(ParsedQuicVersion::RFCv1(),
ParseQuicVersionLabelString("00000001"));
EXPECT_EQ(ParsedQuicVersion::RFCv2(),
ParseQuicVersionLabelString("6b3343cf"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionLabelString("1"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionLabelString("46"));
EXPECT_EQ(UnsupportedQuicVersion(),
ParseQuicVersionLabelString("QUIC_VERSION_46"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionLabelString("h3"));
EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionLabelString("h3-29"));
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_EQ(version, ParseQuicVersionLabelString(QuicVersionLabelToString(
CreateQuicVersionLabel(version))));
}
}
TEST(QuicVersionsTest, QuicVersionToString) {
EXPECT_EQ("QUIC_VERSION_UNSUPPORTED",
QuicVersionToString(QUIC_VERSION_UNSUPPORTED));
QuicTransportVersion single_version[] = {QUIC_VERSION_46};
QuicTransportVersionVector versions_vector;
for (size_t i = 0; i < ABSL_ARRAYSIZE(single_version); ++i) {
versions_vector.push_back(single_version[i]);
}
EXPECT_EQ("QUIC_VERSION_46",
QuicTransportVersionVectorToString(versions_vector));
QuicTransportVersion multiple_versions[] = {QUIC_VERSION_UNSUPPORTED,
QUIC_VERSION_46};
versions_vector.clear();
for (size_t i = 0; i < ABSL_ARRAYSIZE(multiple_versions); ++i) {
versions_vector.push_back(multiple_versions[i]);
}
EXPECT_EQ("QUIC_VERSION_UNSUPPORTED,QUIC_VERSION_46",
QuicTransportVersionVectorToString(versions_vector));
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_NE("QUIC_VERSION_UNSUPPORTED",
QuicVersionToString(version.transport_version));
}
std::ostringstream os;
os << versions_vector;
EXPECT_EQ("QUIC_VERSION_UNSUPPORTED,QUIC_VERSION_46", os.str());
}
TEST(QuicVersionsTest, ParsedQuicVersionToString) {
EXPECT_EQ("0", ParsedQuicVersionToString(ParsedQuicVersion::Unsupported()));
EXPECT_EQ("Q046", ParsedQuicVersionToString(ParsedQuicVersion::Q046()));
EXPECT_EQ("draft29", ParsedQuicVersionToString(ParsedQuicVersion::Draft29()));
EXPECT_EQ("RFCv1", ParsedQuicVersionToString(ParsedQuicVersion::RFCv1()));
EXPECT_EQ("RFCv2", ParsedQuicVersionToString(ParsedQuicVersion::RFCv2()));
ParsedQuicVersionVector versions_vector = {ParsedQuicVersion::Q046()};
EXPECT_EQ("Q046", ParsedQuicVersionVectorToString(versions_vector));
versions_vector = {ParsedQuicVersion::Unsupported(),
ParsedQuicVersion::Q046()};
EXPECT_EQ("0,Q046", ParsedQuicVersionVectorToString(versions_vector));
EXPECT_EQ("0:Q046", ParsedQuicVersionVectorToString(versions_vector, ":",
versions_vector.size()));
EXPECT_EQ("0|...", ParsedQuicVersionVectorToString(versions_vector, "|", 0));
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_NE("0", ParsedQuicVersionToString(version));
}
std::ostringstream os;
os << versions_vector;
EXPECT_EQ("0,Q046", os.str());
}
TEST(QuicVersionsTest, FilterSupportedVersionsAllVersions) {
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
QuicEnableVersion(version);
}
ParsedQuicVersionVector expected_parsed_versions;
for (const ParsedQuicVersion& version : SupportedVersions()) {
expected_parsed_versions.push_back(version);
}
EXPECT_EQ(expected_parsed_versions,
FilterSupportedVersions(AllSupportedVersions()));
EXPECT_EQ(expected_parsed_versions, AllSupportedVersions());
}
TEST(QuicVersionsTest, FilterSupportedVersionsWithoutFirstVersion) {
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
QuicEnableVersion(version);
}
QuicDisableVersion(AllSupportedVersions().front());
ParsedQuicVersionVector expected_parsed_versions;
for (const ParsedQuicVersion& version : SupportedVersions()) {
expected_parsed_versions.push_back(version);
}
expected_parsed_versions.erase(expected_parsed_versions.begin());
EXPECT_EQ(expected_parsed_versions,
FilterSupportedVersions(AllSupportedVersions()));
}
TEST(QuicVersionsTest, LookUpParsedVersionByIndex) {
ParsedQuicVersionVector all_versions = AllSupportedVersions();
int version_count = all_versions.size();
for (int i = -5; i <= version_count + 1; ++i) {
ParsedQuicVersionVector index = ParsedVersionOfIndex(all_versions, i);
if (i >= 0 && i < version_count) {
EXPECT_EQ(all_versions[i], index[0]);
} else {
EXPECT_EQ(UnsupportedQuicVersion(), index[0]);
}
}
}
TEST(QuicVersionsTest, CheckTransportVersionNumbersForTypos) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ(QUIC_VERSION_46, 46);
EXPECT_EQ(QUIC_VERSION_IETF_DRAFT_29, 73);
EXPECT_EQ(QUIC_VERSION_IETF_RFC_V1, 80);
EXPECT_EQ(QUIC_VERSION_IETF_RFC_V2, 82);
}
TEST(QuicVersionsTest, AlpnForVersion) {
static_assert(SupportedVersions().size() == 4u,
"Supported versions out of sync");
EXPECT_EQ("h3-Q046", AlpnForVersion(ParsedQuicVersion::Q046()));
EXPECT_EQ("h3-29", AlpnForVersion(ParsedQuicVersion::Draft29()));
EXPECT_EQ("h3", AlpnForVersion(ParsedQuicVersion::RFCv1()));
EXPECT_EQ("h3", AlpnForVersion(ParsedQuicVersion::RFCv2()));
}
TEST(QuicVersionsTest, QuicVersionEnabling) {
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
QuicFlagSaver flag_saver;
QuicDisableVersion(version);
EXPECT_FALSE(QuicVersionIsEnabled(version));
QuicEnableVersion(version);
EXPECT_TRUE(QuicVersionIsEnabled(version));
}
}
TEST(QuicVersionsTest, ReservedForNegotiation) {
EXPECT_EQ(QUIC_VERSION_RESERVED_FOR_NEGOTIATION,
QuicVersionReservedForNegotiation().transport_version);
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
EXPECT_NE(QUIC_VERSION_RESERVED_FOR_NEGOTIATION, version.transport_version);
}
}
TEST(QuicVersionsTest, SupportedVersionsHasCorrectList) {
size_t index = 0;
for (HandshakeProtocol handshake_protocol : SupportedHandshakeProtocols()) {
for (int trans_vers = 255; trans_vers > 0; trans_vers--) {
QuicTransportVersion transport_version =
static_cast<QuicTransportVersion>(trans_vers);
SCOPED_TRACE(index);
if (ParsedQuicVersionIsValid(handshake_protocol, transport_version)) {
ParsedQuicVersion version = SupportedVersions()[index];
EXPECT_EQ(version,
ParsedQuicVersion(handshake_protocol, transport_version));
index++;
}
}
}
EXPECT_EQ(SupportedVersions().size(), index);
}
TEST(QuicVersionsTest, SupportedVersionsAllDistinct) {
for (size_t index1 = 0; index1 < SupportedVersions().size(); ++index1) {
ParsedQuicVersion version1 = SupportedVersions()[index1];
for (size_t index2 = index1 + 1; index2 < SupportedVersions().size();
++index2) {
ParsedQuicVersion version2 = SupportedVersions()[index2];
EXPECT_NE(version1, version2) << version1 << " " << version2;
EXPECT_NE(CreateQuicVersionLabel(version1),
CreateQuicVersionLabel(version2))
<< version1 << " " << version2;
if ((version1 != ParsedQuicVersion::RFCv2()) &&
(version2 != ParsedQuicVersion::RFCv1())) {
EXPECT_NE(AlpnForVersion(version1), AlpnForVersion(version2))
<< version1 << " " << version2;
}
}
}
}
TEST(QuicVersionsTest, CurrentSupportedHttp3Versions) {
ParsedQuicVersionVector h3_versions = CurrentSupportedHttp3Versions();
ParsedQuicVersionVector all_current_supported_versions =
CurrentSupportedVersions();
for (auto& version : all_current_supported_versions) {
bool version_is_h3 = false;
for (auto& h3_version : h3_versions) {
if (version == h3_version) {
EXPECT_TRUE(version.UsesHttp3());
version_is_h3 = true;
break;
}
}
if (!version_is_h3) {
EXPECT_FALSE(version.UsesHttp3());
}
}
}
TEST(QuicVersionsTest, ObsoleteSupportedVersions) {
ParsedQuicVersionVector obsolete_versions = ObsoleteSupportedVersions();
EXPECT_EQ(quic::ParsedQuicVersion::Q046(), obsolete_versions[0]);
EXPECT_EQ(quic::ParsedQuicVersion::Draft29(), obsolete_versions[1]);
}
TEST(QuicVersionsTest, IsObsoleteSupportedVersion) {
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
bool is_obsolete = version.handshake_protocol != PROTOCOL_TLS1_3 ||
version.transport_version < QUIC_VERSION_IETF_RFC_V1;
EXPECT_EQ(is_obsolete, IsObsoleteSupportedVersion(version));
}
}
TEST(QuicVersionsTest, CurrentSupportedVersionsForClients) {
ParsedQuicVersionVector supported_versions = CurrentSupportedVersions();
ParsedQuicVersionVector client_versions =
CurrentSupportedVersionsForClients();
for (auto& version : supported_versions) {
const bool is_obsolete = IsObsoleteSupportedVersion(version);
const bool is_supported =
absl::c_find(client_versions, version) != client_versions.end();
EXPECT_EQ(!is_obsolete, is_supported);
}
for (auto& version : client_versions) {
EXPECT_TRUE(absl::c_find(supported_versions, version) !=
supported_versions.end());
}
}
}
}
} |
245 | cpp | google/quiche | quic_network_blackhole_detector | quiche/quic/core/quic_network_blackhole_detector.cc | quiche/quic/core/quic_network_blackhole_detector_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_NETWORK_BLACKHOLE_DETECTOR_H_
#define QUICHE_QUIC_CORE_QUIC_NETWORK_BLACKHOLE_DETECTOR_H_
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
namespace test {
class QuicConnectionPeer;
class QuicNetworkBlackholeDetectorPeer;
}
class QUICHE_EXPORT QuicNetworkBlackholeDetector {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() {}
virtual void OnPathDegradingDetected() = 0;
virtual void OnBlackholeDetected() = 0;
virtual void OnPathMtuReductionDetected() = 0;
};
QuicNetworkBlackholeDetector(Delegate* delegate, QuicAlarm* alarm);
void StopDetection(bool permanent);
void RestartDetection(QuicTime path_degrading_deadline,
QuicTime blackhole_deadline,
QuicTime path_mtu_reduction_deadline);
void OnAlarm();
bool IsDetectionInProgress() const;
private:
friend class test::QuicConnectionPeer;
friend class test::QuicNetworkBlackholeDetectorPeer;
QuicTime GetEarliestDeadline() const;
QuicTime GetLastDeadline() const;
void UpdateAlarm() const;
Delegate* delegate_;
QuicTime path_degrading_deadline_ = QuicTime::Zero();
QuicTime blackhole_deadline_ = QuicTime::Zero();
QuicTime path_mtu_reduction_deadline_ = QuicTime::Zero();
QuicAlarm& alarm_;
};
}
#endif
#include "quiche/quic/core/quic_network_blackhole_detector.h"
#include <algorithm>
#include "quiche/quic/core/quic_constants.h"
namespace quic {
QuicNetworkBlackholeDetector::QuicNetworkBlackholeDetector(Delegate* delegate,
QuicAlarm* alarm)
: delegate_(delegate), alarm_(*alarm) {}
void QuicNetworkBlackholeDetector::OnAlarm() {
QuicTime next_deadline = GetEarliestDeadline();
if (!next_deadline.IsInitialized()) {
QUIC_BUG(quic_bug_10328_1) << "BlackholeDetector alarm fired unexpectedly";
return;
}
QUIC_DVLOG(1) << "BlackholeDetector alarm firing. next_deadline:"
<< next_deadline
<< ", path_degrading_deadline_:" << path_degrading_deadline_
<< ", path_mtu_reduction_deadline_:"
<< path_mtu_reduction_deadline_
<< ", blackhole_deadline_:" << blackhole_deadline_;
if (path_degrading_deadline_ == next_deadline) {
path_degrading_deadline_ = QuicTime::Zero();
delegate_->OnPathDegradingDetected();
}
if (path_mtu_reduction_deadline_ == next_deadline) {
path_mtu_reduction_deadline_ = QuicTime::Zero();
delegate_->OnPathMtuReductionDetected();
}
if (blackhole_deadline_ == next_deadline) {
blackhole_deadline_ = QuicTime::Zero();
delegate_->OnBlackholeDetected();
}
UpdateAlarm();
}
void QuicNetworkBlackholeDetector::StopDetection(bool permanent) {
if (permanent) {
alarm_.PermanentCancel();
} else {
alarm_.Cancel();
}
path_degrading_deadline_ = QuicTime::Zero();
blackhole_deadline_ = QuicTime::Zero();
path_mtu_reduction_deadline_ = QuicTime::Zero();
}
void QuicNetworkBlackholeDetector::RestartDetection(
QuicTime path_degrading_deadline, QuicTime blackhole_deadline,
QuicTime path_mtu_reduction_deadline) {
path_degrading_deadline_ = path_degrading_deadline;
blackhole_deadline_ = blackhole_deadline;
path_mtu_reduction_deadline_ = path_mtu_reduction_deadline;
QUIC_BUG_IF(quic_bug_12708_1, blackhole_deadline_.IsInitialized() &&
blackhole_deadline_ != GetLastDeadline())
<< "Blackhole detection deadline should be the last deadline.";
UpdateAlarm();
}
QuicTime QuicNetworkBlackholeDetector::GetEarliestDeadline() const {
QuicTime result = QuicTime::Zero();
for (QuicTime t : {path_degrading_deadline_, blackhole_deadline_,
path_mtu_reduction_deadline_}) {
if (!t.IsInitialized()) {
continue;
}
if (!result.IsInitialized() || t < result) {
result = t;
}
}
return result;
}
QuicTime QuicNetworkBlackholeDetector::GetLastDeadline() const {
return std::max({path_degrading_deadline_, blackhole_deadline_,
path_mtu_reduction_deadline_});
}
void QuicNetworkBlackholeDetector::UpdateAlarm() const {
if (alarm_.IsPermanentlyCancelled()) {
return;
}
QuicTime next_deadline = GetEarliestDeadline();
QUIC_DVLOG(1) << "Updating alarm. next_deadline:" << next_deadline
<< ", path_degrading_deadline_:" << path_degrading_deadline_
<< ", path_mtu_reduction_deadline_:"
<< path_mtu_reduction_deadline_
<< ", blackhole_deadline_:" << blackhole_deadline_;
alarm_.Update(next_deadline, kAlarmGranularity);
}
bool QuicNetworkBlackholeDetector::IsDetectionInProgress() const {
return alarm_.IsSet();
}
} | #include "quiche/quic/core/quic_network_blackhole_detector.h"
#include "quiche/quic/core/quic_connection_alarms.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_quic_connection_alarms.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
class QuicNetworkBlackholeDetectorPeer {
public:
static QuicAlarm* GetAlarm(QuicNetworkBlackholeDetector* detector) {
return &detector->alarm_;
}
};
namespace {
class MockDelegate : public QuicNetworkBlackholeDetector::Delegate {
public:
MOCK_METHOD(void, OnPathDegradingDetected, (), (override));
MOCK_METHOD(void, OnBlackholeDetected, (), (override));
MOCK_METHOD(void, OnPathMtuReductionDetected, (), (override));
};
const size_t kPathDegradingDelayInSeconds = 5;
const size_t kPathMtuReductionDelayInSeconds = 7;
const size_t kBlackholeDelayInSeconds = 10;
class QuicNetworkBlackholeDetectorTest : public QuicTest {
public:
QuicNetworkBlackholeDetectorTest()
: alarms_(&connection_alarms_delegate_, alarm_factory_, arena_),
detector_(&delegate_, &alarms_.network_blackhole_detector_alarm()),
alarm_(static_cast<MockAlarmFactory::TestAlarm*>(
QuicNetworkBlackholeDetectorPeer::GetAlarm(&detector_))),
path_degrading_delay_(
QuicTime::Delta::FromSeconds(kPathDegradingDelayInSeconds)),
path_mtu_reduction_delay_(
QuicTime::Delta::FromSeconds(kPathMtuReductionDelayInSeconds)),
blackhole_delay_(
QuicTime::Delta::FromSeconds(kBlackholeDelayInSeconds)) {
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
ON_CALL(connection_alarms_delegate_, OnNetworkBlackholeDetectorAlarm())
.WillByDefault([&] { detector_.OnAlarm(); });
}
protected:
void RestartDetection() {
detector_.RestartDetection(clock_.Now() + path_degrading_delay_,
clock_.Now() + blackhole_delay_,
clock_.Now() + path_mtu_reduction_delay_);
}
testing::StrictMock<MockDelegate> delegate_;
MockConnectionAlarmsDelegate connection_alarms_delegate_;
QuicConnectionArena arena_;
MockAlarmFactory alarm_factory_;
QuicConnectionAlarms alarms_;
QuicNetworkBlackholeDetector detector_;
MockAlarmFactory::TestAlarm* alarm_;
MockClock clock_;
const QuicTime::Delta path_degrading_delay_;
const QuicTime::Delta path_mtu_reduction_delay_;
const QuicTime::Delta blackhole_delay_;
};
TEST_F(QuicNetworkBlackholeDetectorTest, StartAndFire) {
EXPECT_FALSE(detector_.IsDetectionInProgress());
RestartDetection();
EXPECT_TRUE(detector_.IsDetectionInProgress());
EXPECT_EQ(clock_.Now() + path_degrading_delay_, alarm_->deadline());
clock_.AdvanceTime(path_degrading_delay_);
EXPECT_CALL(delegate_, OnPathDegradingDetected());
alarm_->Fire();
EXPECT_TRUE(detector_.IsDetectionInProgress());
EXPECT_EQ(clock_.Now() + path_mtu_reduction_delay_ - path_degrading_delay_,
alarm_->deadline());
clock_.AdvanceTime(path_mtu_reduction_delay_ - path_degrading_delay_);
EXPECT_CALL(delegate_, OnPathMtuReductionDetected());
alarm_->Fire();
EXPECT_TRUE(detector_.IsDetectionInProgress());
EXPECT_EQ(clock_.Now() + blackhole_delay_ - path_mtu_reduction_delay_,
alarm_->deadline());
clock_.AdvanceTime(blackhole_delay_ - path_mtu_reduction_delay_);
EXPECT_CALL(delegate_, OnBlackholeDetected());
alarm_->Fire();
EXPECT_FALSE(detector_.IsDetectionInProgress());
}
TEST_F(QuicNetworkBlackholeDetectorTest, RestartAndStop) {
RestartDetection();
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
RestartDetection();
EXPECT_EQ(clock_.Now() + path_degrading_delay_, alarm_->deadline());
detector_.StopDetection(false);
EXPECT_FALSE(detector_.IsDetectionInProgress());
}
TEST_F(QuicNetworkBlackholeDetectorTest, PathDegradingFiresAndRestart) {
EXPECT_FALSE(detector_.IsDetectionInProgress());
RestartDetection();
EXPECT_TRUE(detector_.IsDetectionInProgress());
EXPECT_EQ(clock_.Now() + path_degrading_delay_, alarm_->deadline());
clock_.AdvanceTime(path_degrading_delay_);
EXPECT_CALL(delegate_, OnPathDegradingDetected());
alarm_->Fire();
EXPECT_TRUE(detector_.IsDetectionInProgress());
EXPECT_EQ(clock_.Now() + path_mtu_reduction_delay_ - path_degrading_delay_,
alarm_->deadline());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(100));
RestartDetection();
EXPECT_EQ(clock_.Now() + path_degrading_delay_, alarm_->deadline());
}
}
}
} |
246 | cpp | google/quiche | quic_session | quiche/quic/core/quic_session.cc | quiche/quic/core/quic_session_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_SESSION_H_
#define QUICHE_QUIC_CORE_QUIC_SESSION_H_
#include <cstddef>
#include <cstdint>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "absl/container/flat_hash_map.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/quic/core/crypto/tls_connection.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_stop_sending_frame.h"
#include "quiche/quic/core/frames/quic_window_update_frame.h"
#include "quiche/quic/core/handshaker_delegate_interface.h"
#include "quiche/quic/core/legacy_quic_stream_id_manager.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_control_frame_manager.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_datagram_queue.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_path_validator.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_write_blocked_list.h"
#include "quiche/quic/core/session_notifier_interface.h"
#include "quiche/quic/core/stream_delegate_interface.h"
#include "quiche/quic/core/uber_quic_stream_id_manager.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
class QuicCryptoStream;
class QuicFlowController;
class QuicStream;
class QuicStreamIdManager;
namespace test {
class QuicSessionPeer;
}
class QUICHE_EXPORT QuicSession
: public QuicConnectionVisitorInterface,
public SessionNotifierInterface,
public QuicStreamFrameDataProducer,
public QuicStreamIdManager::DelegateInterface,
public HandshakerDelegateInterface,
public StreamDelegateInterface,
public QuicControlFrameManager::DelegateInterface {
public:
class QUICHE_EXPORT Visitor {
public:
virtual ~Visitor() {}
virtual void OnConnectionClosed(QuicConnectionId server_connection_id,
QuicErrorCode error,
const std::string& error_details,
ConnectionCloseSource source) = 0;
virtual void OnWriteBlocked(QuicBlockedWriterInterface* blocked_writer) = 0;
virtual void OnRstStreamReceived(const QuicRstStreamFrame& frame) = 0;
virtual void OnStopSendingReceived(const QuicStopSendingFrame& frame) = 0;
virtual bool TryAddNewConnectionId(
const QuicConnectionId& server_connection_id,
const QuicConnectionId& new_connection_id) = 0;
virtual void OnConnectionIdRetired(
const QuicConnectionId& server_connection_id) = 0;
virtual void OnServerPreferredAddressAvailable(
const QuicSocketAddress& ) = 0;
virtual void OnPathDegrading() = 0;
};
QuicSession(QuicConnection* connection, Visitor* owner,
const QuicConfig& config,
const ParsedQuicVersionVector& supported_versions,
QuicStreamCount num_expected_unidirectional_static_streams);
QuicSession(QuicConnection* connection, Visitor* owner,
const QuicConfig& config,
const ParsedQuicVersionVector& supported_versions,
QuicStreamCount num_expected_unidirectional_static_streams,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
QuicPriorityType priority_type = QuicPriorityType::kHttp);
QuicSession(const QuicSession&) = delete;
QuicSession& operator=(const QuicSession&) = delete;
~QuicSession() override;
virtual void Initialize();
virtual const QuicCryptoStream* GetCryptoStream() const = 0;
void OnStreamFrame(const QuicStreamFrame& frame) override;
void OnCryptoFrame(const QuicCryptoFrame& frame) override;
void OnRstStream(const QuicRstStreamFrame& frame) override;
void OnGoAway(const QuicGoAwayFrame& frame) override;
void OnMessageReceived(absl::string_view message) override;
void OnHandshakeDoneReceived() override;
void OnNewTokenReceived(absl::string_view token) override;
void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override;
void OnBlockedFrame(const QuicBlockedFrame& frame) override;
void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source) override;
void OnWriteBlocked() override;
void OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& version) override;
void OnPacketReceived(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
bool is_connectivity_probe) override;
void OnCanWrite() override;
void OnCongestionWindowChange(QuicTime ) override {}
void OnConnectionMigration(AddressChangeType ) override {}
void OnAckNeedsRetransmittableFrame() override;
void SendAckFrequency(const QuicAckFrequencyFrame& frame) override;
void SendNewConnectionId(const QuicNewConnectionIdFrame& frame) override;
void SendRetireConnectionId(uint64_t sequence_number) override;
bool MaybeReserveConnectionId(
const QuicConnectionId& server_connection_id) override;
void OnServerConnectionIdRetired(
const QuicConnectionId& server_connection_id) override;
bool WillingAndAbleToWrite() const override;
std::string GetStreamsInfoForLogging() const override;
void OnPathDegrading() override;
void OnForwardProgressMadeAfterPathDegrading() override;
bool AllowSelfAddressChange() const override;
HandshakeState GetHandshakeState() const override;
bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) override;
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) override;
void OnStopSendingFrame(const QuicStopSendingFrame& frame) override;
void OnPacketDecrypted(EncryptionLevel level) override;
void OnOneRttPacketAcknowledged() override;
void OnHandshakePacketSent() override;
void OnKeyUpdate(KeyUpdateReason ) override {}
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
void BeforeConnectionCloseSent() override {}
bool ValidateToken(absl::string_view token) override;
bool MaybeSendAddressToken() override;
void CreateContextForMultiPortPath(
std::unique_ptr<MultiPortPathContextObserver> )
override {}
void MigrateToMultiPortPath(
std::unique_ptr<QuicPathValidationContext> ) override {}
void OnServerPreferredAddressAvailable(
const QuicSocketAddress& ) override;
void MaybeBundleOpportunistically() override {}
QuicByteCount GetFlowControlSendWindowSize(QuicStreamId id) override;
WriteStreamDataResult WriteStreamData(QuicStreamId id,
QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override;
bool WriteCryptoData(EncryptionLevel level, QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override;
bool OnFrameAcked(const QuicFrame& frame, QuicTime::Delta ack_delay_time,
QuicTime receive_timestamp) override;
void OnStreamFrameRetransmitted(const QuicStreamFrame& frame) override;
void OnFrameLost(const QuicFrame& frame) override;
bool RetransmitFrames(const QuicFrames& frames,
TransmissionType type) override;
bool IsFrameOutstanding(const QuicFrame& frame) const override;
bool HasUnackedCryptoData() const override;
bool HasUnackedStreamData() const override;
bool CanSendMaxStreams() override;
void SendMaxStreams(QuicStreamCount stream_count,
bool unidirectional) override;
virtual void OnCanCreateNewOutgoingStream(bool ) {}
virtual void ProcessUdpPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet);
MessageResult SendMessage(absl::Span<quiche::QuicheMemSlice> message);
MessageResult SendMessage(absl::Span<quiche::QuicheMemSlice> message,
bool flush);
MessageResult SendMessage(quiche::QuicheMemSlice message);
virtual void OnMessageAcked(QuicMessageId message_id,
QuicTime receive_timestamp);
virtual void OnMessageLost(QuicMessageId message_id);
void OnControlFrameManagerError(QuicErrorCode error_code,
std::string error_details) override;
bool WriteControlFrame(const QuicFrame& frame,
TransmissionType type) override;
virtual void ResetStream(QuicStreamId id, QuicRstStreamErrorCode error);
virtual void SendGoAway(QuicErrorCode error_code, const std::string& reason);
virtual void SendBlocked(QuicStreamId id, QuicStreamOffset byte_offset);
virtual void SendWindowUpdate(QuicStreamId id, QuicStreamOffset byte_offset);
virtual void OnStreamClosed(QuicStreamId stream_id);
virtual bool IsEncryptionEstablished() const;
bool OneRttKeysAvailable() const;
virtual void OnConfigNegotiated();
virtual std::optional<std::string> OnAlpsData(const uint8_t* alps_data,
size_t alps_length);
bool OnNewDecryptionKeyAvailable(EncryptionLevel level,
std::unique_ptr<QuicDecrypter> decrypter,
bool set_alternative_decrypter,
bool latch_once_used) override;
void OnNewEncryptionKeyAvailable(
EncryptionLevel level, std::unique_ptr<QuicEncrypter> encrypter) override;
void SetDefaultEncryptionLevel(EncryptionLevel level) override;
void OnTlsHandshakeComplete() override;
void OnTlsHandshakeConfirmed() override {}
void DiscardOldDecryptionKey(EncryptionLevel level) override;
void DiscardOldEncryptionKey(EncryptionLevel level) override;
void NeuterUnencryptedData() override;
void NeuterHandshakeData() override;
void OnZeroRttRejected(int reason) override;
bool FillTransportParameters(TransportParameters* params) override;
QuicErrorCode ProcessTransportParameters(const TransportParameters& params,
bool is_resumption,
std::string* error_details) override;
void OnHandshakeCallbackDone() override;
bool PacketFlusherAttached() const override;
ParsedQuicVersion parsed_version() const override { return version(); }
void OnEncryptedClientHelloSent(
absl::string_view client_hello) const override;
void OnEncryptedClientHelloReceived(
absl::string_view client_hello) const override;
void OnStreamError(QuicErrorCode error_code,
std::string error_details) override;
void OnStreamError(QuicErrorCode error_code,
QuicIetfTransportErrorCodes ietf_error,
std::string error_details) override;
void RegisterStreamPriority(QuicStreamId id, bool is_static,
const QuicStreamPriority& priority) override;
void UnregisterStreamPriority(QuicStreamId id) override;
void UpdateStreamPriority(QuicStreamId id,
const QuicStreamPriority& new_priority) override;
QuicConsumedData WritevData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset, StreamSendingState state,
TransmissionType type,
EncryptionLevel level) override;
size_t SendCryptoData(EncryptionLevel level, size_t write_length,
QuicStreamOffset offset,
TransmissionType type) override;
virtual void OnCryptoHandshakeMessageSent(
const CryptoHandshakeMessage& message);
virtual void OnCryptoHandshakeMessageReceived(
const CryptoHandshakeMessage& message);
QuicConfig* config() { return &config_; }
const QuicConfig* config() const { return &config_; }
bool IsClosedStream(QuicStreamId id);
QuicConnection* connection() { return connection_; }
const QuicConnection* connection() const { return connection_; }
const QuicSocketAddress& peer_address() const {
return connection_->peer_address();
}
const QuicSocketAddress& self_address() const {
return connection_->self_address();
}
QuicConnectionId connection_id() const {
return connection_->connection_id();
}
size_t GetNumActiveStreams() const;
virtual void MarkConnectionLevelWriteBlocked(QuicStreamId id);
void MaybeCloseZombieStream(QuicStreamId id);
bool HasPendingHandshake() const;
bool HasDataToWrite() const;
void ValidatePath(
std::unique_ptr<QuicPathValidationContext> context,
std::unique_ptr<QuicPathValidator::ResultDelegate> result_delegate,
PathValidationReason reason);
bool HasPendingPathValidation() const;
bool MigratePath(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
QuicPacketWriter* writer, bool owns_writer);
QuicPacketLength GetCurrentLargestMessagePayload() const;
QuicPacketLength GetGuaranteedLargestMessagePayload() const;
bool transport_goaway_sent() const { return transport_goaway_sent_; }
bool transport_goaway_received() const { return transport_goaway_received_; }
QuicErrorCode error() const { return on_closed_frame_.quic_error_code; }
uint64_t wire_error() const { return on_closed_frame_.wire_error_code; }
const std::string& error_details() const {
return on_closed_frame_.error_details;
}
uint64_t transport_close_frame_type() const {
return on_closed_frame_.transport_close_frame_type;
}
QuicConnectionCloseType close_type() const {
return on_closed_frame_.close_type;
}
Perspective perspective() const { return perspective_; }
QuicFlowController* flow_controller() { return &flow_controller_; }
bool IsConnectionFlowControlBlocked() const;
bool IsStreamFlowControlBlocked();
size_t max_open_incoming_bidirectional_streams() const;
size_t max_open_incoming_unidirectional_streams() const;
size_t MaxAvailableBidirectionalStreams() const;
size_t MaxAvailableUnidirectionalStreams() const;
QuicStream* GetOrCreateStream(const QuicStreamId stream_id);
void StreamDraining(QuicStreamId id, bool unidirectional);
virtual bool ShouldYield(QuicStreamId stream_id);
void CleanUpClosedStreams();
const ParsedQuicVersionVector& supported_versions() const {
return supported_versions_;
}
QuicStreamId next_outgoing_bidirectional_stream_id() const;
QuicStreamId next_outgoing_unidirectional_stream_id() const;
bool IsIncomingStream(QuicStreamId id) const;
static void RecordConnectionCloseAtServer(QuicErrorCode error,
ConnectionCloseSource source);
QuicTransportVersion transport_version() const {
return connection_->transport_version();
}
ParsedQuicVersion version() const { return connection_->version(); }
bool is_configured() const { return is_configured_; }
void NeuterCryptoDataOfEncryptionLevel(EncryptionLevel level);
virtual std::vector<std::string> GetAlpnsToOffer() const {
return std::vector<std::string>({AlpnForVersion(connection()->version())});
}
virtual std::vector<absl::string_view>::const_iterator SelectAlpn(
const std::vector<absl::string_view>& alpns) const;
virtual void OnAlpnSelected(absl::string_view alpn);
virtual bool ResumeApplicationState(ApplicationState* ) {
return true;
}
virtual void MaybeSendRstStreamFrame(QuicStreamId id,
QuicResetStreamError error,
QuicStreamOffset bytes_written);
virtual void MaybeSendStopSendingFrame(QuicStreamId id,
QuicResetStreamError error);
EncryptionLevel GetEncryptionLevelToSendApplicationData() const;
const std::optional<std::string> user_agent_id() const {
return user_agent_id_;
}
void SetUserAgentId(std::string user_agent_id) {
user_agent_id_ = std::move(user_agent_id);
connection()->OnUserAgentIdKnown(*user_agent_id_);
}
void SetSourceAddressTokenToSend(absl::string_view token) {
connection()->SetSourceAddressTokenToSend(token);
}
const QuicClock* GetClock() const {
return connection()->helper()->GetClock();
}
bool liveness_testing_in_progress() const {
return liveness_testing_in_progress_;
}
virtual QuicSSLConfig GetSSLConfig() const { return QuicSSLConfig(); }
void ProcessAllPendingStreams();
const ParsedQuicVersionVector& client_original_supported_versions() const {
QUICHE_DCHECK_EQ(perspective_, Perspective::IS_CLIENT);
return client_original_supported_versions_;
}
void set_client_original_supported_versions(
const ParsedQuicVersionVector& client_original_supported_versions) {
QUICHE_DCHECK_EQ(perspective_, Perspective::IS_CLIENT);
client_original_supported_versions_ = client_original_supported_versions;
}
void SetForceFlushForDefaultQueue(bool force_flush) {
datagram_queue_.SetForceFlush(force_flush);
}
uint64_t expired_datagrams_in_default_queue() const {
return datagram_queue_.expired_datagram_count();
}
uint64_t total_datagrams_lost() const { return total_datagrams_lost_; }
QuicStream* GetActiveStream(QuicStreamId id) const;
void OnStreamCountReset();
QuicPriorityType priority_type() const { return priority_type_; }
protected:
using StreamMap =
absl::flat_hash_map<QuicStreamId, std::unique_ptr<QuicStream>>;
using PendingStreamMap =
quiche::QuicheLinkedHashMap<QuicStreamId, std::unique_ptr<PendingStream>>;
using ClosedStreams = std::vector<std::unique_ptr<QuicStream>>;
using ZombieStreamMap =
absl::flat_hash_map<QuicStreamId, std::unique_ptr<QuicStream>>;
std::string on_closed_frame_string() const;
virtual QuicStream* CreateIncomingStream(QuicStreamId id) = 0;
virtual QuicStream* CreateIncomingStream(PendingStream* pending) = 0;
virtual QuicCryptoStream* GetMutableCryptoStream() = 0;
virtual void ActivateStream(std::unique_ptr<QuicStream> stream);
void SetTransmissionType(TransmissionType type);
QuicStreamId GetNextOutgoingBidirectionalStreamId();
QuicStreamId GetNextOutgoingUnidirectionalStreamId();
bool CanO | #include "quiche/quic/core/quic_session.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/memory/memory.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/null_decrypter.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/frames/quic_max_streams_frame.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_quic_session_visitor.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_flow_controller_peer.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_stream_id_manager_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_stream_send_buffer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/quiche_mem_slice_storage.h"
using spdy::kV3HighestPriority;
using spdy::SpdyPriority;
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::AtLeast;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::StrictMock;
using ::testing::WithArg;
namespace quic {
namespace test {
namespace {
class TestCryptoStream : public QuicCryptoStream, public QuicCryptoHandshaker {
public:
explicit TestCryptoStream(QuicSession* session)
: QuicCryptoStream(session),
QuicCryptoHandshaker(this, session),
encryption_established_(false),
one_rtt_keys_available_(false),
params_(new QuicCryptoNegotiatedParameters) {
params_->cipher_suite = 1;
}
void EstablishZeroRttEncryption() {
encryption_established_ = true;
session()->connection()->SetEncrypter(
ENCRYPTION_ZERO_RTT,
std::make_unique<NullEncrypter>(session()->perspective()));
}
void OnHandshakeMessage(const CryptoHandshakeMessage& ) override {
encryption_established_ = true;
one_rtt_keys_available_ = true;
QuicErrorCode error;
std::string error_details;
session()->config()->SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindowForTest);
session()->config()->SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindowForTest);
if (session()->version().UsesTls()) {
if (session()->perspective() == Perspective::IS_CLIENT) {
session()->config()->SetOriginalConnectionIdToSend(
session()->connection()->connection_id());
session()->config()->SetInitialSourceConnectionIdToSend(
session()->connection()->connection_id());
} else {
session()->config()->SetInitialSourceConnectionIdToSend(
session()->connection()->client_connection_id());
}
TransportParameters transport_parameters;
EXPECT_TRUE(
session()->config()->FillTransportParameters(&transport_parameters));
error = session()->config()->ProcessTransportParameters(
transport_parameters, false, &error_details);
} else {
CryptoHandshakeMessage msg;
session()->config()->ToHandshakeMessage(&msg, transport_version());
error =
session()->config()->ProcessPeerHello(msg, CLIENT, &error_details);
}
EXPECT_THAT(error, IsQuicNoError());
session()->OnNewEncryptionKeyAvailable(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(session()->perspective()));
session()->OnConfigNegotiated();
if (session()->connection()->version().handshake_protocol ==
PROTOCOL_TLS1_3) {
session()->OnTlsHandshakeComplete();
} else {
session()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
}
session()->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
}
ssl_early_data_reason_t EarlyDataReason() const override {
return ssl_early_data_unknown;
}
bool encryption_established() const override {
return encryption_established_;
}
bool one_rtt_keys_available() const override {
return one_rtt_keys_available_;
}
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override {
return *params_;
}
CryptoMessageParser* crypto_message_parser() override {
return QuicCryptoHandshaker::crypto_message_parser();
}
void OnPacketDecrypted(EncryptionLevel ) override {}
void OnOneRttPacketAcknowledged() override {}
void OnHandshakePacketSent() override {}
void OnHandshakeDoneReceived() override {}
void OnNewTokenReceived(absl::string_view ) override {}
std::string GetAddressToken(
const CachedNetworkParameters* )
const override {
return "";
}
bool ValidateAddressToken(absl::string_view ) const override {
return true;
}
const CachedNetworkParameters* PreviousCachedNetworkParams() const override {
return nullptr;
}
void SetPreviousCachedNetworkParams(
CachedNetworkParameters ) override {}
HandshakeState GetHandshakeState() const override {
return one_rtt_keys_available() ? HANDSHAKE_COMPLETE : HANDSHAKE_START;
}
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> ) override {}
MOCK_METHOD(std::unique_ptr<QuicDecrypter>,
AdvanceKeysAndCreateCurrentOneRttDecrypter, (), (override));
MOCK_METHOD(std::unique_ptr<QuicEncrypter>, CreateCurrentOneRttEncrypter, (),
(override));
MOCK_METHOD(void, OnCanWrite, (), (override));
bool HasPendingCryptoRetransmission() const override { return false; }
MOCK_METHOD(bool, HasPendingRetransmission, (), (const, override));
void OnConnectionClosed(const QuicConnectionCloseFrame& ,
ConnectionCloseSource ) override {}
bool ExportKeyingMaterial(absl::string_view ,
absl::string_view ,
size_t ,
std::string* ) override {
return false;
}
SSL* GetSsl() const override { return nullptr; }
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override {
return level != ENCRYPTION_ZERO_RTT;
}
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override {
switch (space) {
case INITIAL_DATA:
return ENCRYPTION_INITIAL;
case HANDSHAKE_DATA:
return ENCRYPTION_HANDSHAKE;
case APPLICATION_DATA:
return ENCRYPTION_FORWARD_SECURE;
default:
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
}
private:
using QuicCryptoStream::session;
bool encryption_established_;
bool one_rtt_keys_available_;
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters> params_;
};
class TestStream : public QuicStream {
public:
TestStream(QuicStreamId id, QuicSession* session, StreamType type)
: TestStream(id, session, false, type) {}
TestStream(QuicStreamId id, QuicSession* session, bool is_static,
StreamType type)
: QuicStream(id, session, is_static, type) {}
TestStream(PendingStream* pending, QuicSession* session)
: QuicStream(pending, session, false) {}
using QuicStream::CloseWriteSide;
using QuicStream::WriteMemSlices;
void OnDataAvailable() override {}
MOCK_METHOD(void, OnCanWrite, (), (override));
MOCK_METHOD(bool, RetransmitStreamData,
(QuicStreamOffset, QuicByteCount, bool, TransmissionType),
(override));
MOCK_METHOD(bool, HasPendingRetransmission, (), (const, override));
};
class TestSession : public QuicSession {
public:
explicit TestSession(QuicConnection* connection,
MockQuicSessionVisitor* session_visitor)
: QuicSession(connection, session_visitor, DefaultQuicConfig(),
CurrentSupportedVersions(),
0),
crypto_stream_(this),
writev_consumes_all_data_(false),
uses_pending_streams_(false),
num_incoming_streams_created_(0) {
set_max_streams_accepted_per_loop(5);
Initialize();
this->connection()->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection->perspective()));
if (this->connection()->version().SupportsAntiAmplificationLimit()) {
QuicConnectionPeer::SetAddressValidated(this->connection());
}
}
~TestSession() override { DeleteConnection(); }
TestCryptoStream* GetMutableCryptoStream() override {
return &crypto_stream_;
}
const TestCryptoStream* GetCryptoStream() const override {
return &crypto_stream_;
}
TestStream* CreateOutgoingBidirectionalStream() {
QuicStreamId id = GetNextOutgoingBidirectionalStreamId();
if (id ==
QuicUtils::GetInvalidStreamId(connection()->transport_version())) {
return nullptr;
}
TestStream* stream = new TestStream(id, this, BIDIRECTIONAL);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
TestStream* CreateOutgoingUnidirectionalStream() {
TestStream* stream = new TestStream(GetNextOutgoingUnidirectionalStreamId(),
this, WRITE_UNIDIRECTIONAL);
ActivateStream(absl::WrapUnique(stream));
return stream;
}
TestStream* CreateIncomingStream(QuicStreamId id) override {
if (!VersionHasIetfQuicFrames(connection()->transport_version()) &&
stream_id_manager().num_open_incoming_streams() + 1 >
max_open_incoming_bidirectional_streams()) {
connection()->CloseConnection(
QUIC_TOO_MANY_OPEN_STREAMS, "Too many streams!",
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
return nullptr;
}
TestStream* stream = new TestStream(
id, this,
DetermineStreamType(id, connection()->version(), perspective(),
true, BIDIRECTIONAL));
ActivateStream(absl::WrapUnique(stream));
++num_incoming_streams_created_;
return stream;
}
TestStream* CreateIncomingStream(PendingStream* pending) override {
TestStream* stream = new TestStream(pending, this);
ActivateStream(absl::WrapUnique(stream));
++num_incoming_streams_created_;
return stream;
}
QuicStream* ProcessBidirectionalPendingStream(
PendingStream* pending) override {
return CreateIncomingStream(pending);
}
QuicStream* ProcessReadUnidirectionalPendingStream(
PendingStream* pending) override {
struct iovec iov;
if (pending->sequencer()->GetReadableRegion(&iov)) {
return CreateIncomingStream(pending);
}
return nullptr;
}
bool IsClosedStream(QuicStreamId id) {
return QuicSession::IsClosedStream(id);
}
QuicStream* GetOrCreateStream(QuicStreamId stream_id) {
return QuicSession::GetOrCreateStream(stream_id);
}
bool ShouldKeepConnectionAlive() const override {
return GetNumActiveStreams() > 0;
}
QuicConsumedData WritevData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset, StreamSendingState state,
TransmissionType type,
EncryptionLevel level) override {
bool fin = state != NO_FIN;
QuicConsumedData consumed(write_length, fin);
if (!writev_consumes_all_data_) {
consumed =
QuicSession::WritevData(id, write_length, offset, state, type, level);
}
QuicSessionPeer::GetWriteBlockedStreams(this)->UpdateBytesForStream(
id, consumed.bytes_consumed);
return consumed;
}
MOCK_METHOD(void, OnCanCreateNewOutgoingStream, (bool unidirectional),
(override));
void set_writev_consumes_all_data(bool val) {
writev_consumes_all_data_ = val;
}
QuicConsumedData SendStreamData(QuicStream* stream) {
if (!QuicUtils::IsCryptoStreamId(connection()->transport_version(),
stream->id()) &&
this->connection()->encryption_level() != ENCRYPTION_FORWARD_SECURE) {
this->connection()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
}
QuicStreamPeer::SendBuffer(stream).SaveStreamData("not empty");
QuicConsumedData consumed =
WritevData(stream->id(), 9, 0, FIN, NOT_RETRANSMISSION,
GetEncryptionLevelToSendApplicationData());
QuicStreamPeer::SendBuffer(stream).OnStreamDataConsumed(
consumed.bytes_consumed);
return consumed;
}
const QuicFrame& save_frame() { return save_frame_; }
bool SaveFrame(const QuicFrame& frame) {
save_frame_ = frame;
DeleteFrame(&const_cast<QuicFrame&>(frame));
return true;
}
QuicConsumedData SendLargeFakeData(QuicStream* stream, int bytes) {
QUICHE_DCHECK(writev_consumes_all_data_);
return WritevData(stream->id(), bytes, 0, FIN, NOT_RETRANSMISSION,
GetEncryptionLevelToSendApplicationData());
}
bool UsesPendingStreamForFrame(QuicFrameType type,
QuicStreamId stream_id) const override {
if (!uses_pending_streams_) {
return false;
}
bool is_incoming_stream = IsIncomingStream(stream_id);
StreamType stream_type = QuicUtils::GetStreamType(
stream_id, perspective(), is_incoming_stream, version());
switch (type) {
case STREAM_FRAME:
ABSL_FALLTHROUGH_INTENDED;
case RST_STREAM_FRAME:
return is_incoming_stream;
case STOP_SENDING_FRAME:
ABSL_FALLTHROUGH_INTENDED;
case WINDOW_UPDATE_FRAME:
return stream_type == BIDIRECTIONAL;
default:
return false;
}
}
void set_uses_pending_streams(bool uses_pending_streams) {
uses_pending_streams_ = uses_pending_streams;
}
int num_incoming_streams_created() const {
return num_incoming_streams_created_;
}
using QuicSession::ActivateStream;
using QuicSession::CanOpenNextOutgoingBidirectionalStream;
using QuicSession::CanOpenNextOutgoingUnidirectionalStream;
using QuicSession::closed_streams;
using QuicSession::GetNextOutgoingBidirectionalStreamId;
using QuicSession::GetNextOutgoingUnidirectionalStreamId;
private:
StrictMock<TestCryptoStream> crypto_stream_;
bool writev_consumes_all_data_;
bool uses_pending_streams_;
QuicFrame save_frame_;
int num_incoming_streams_created_;
};
MATCHER_P(IsFrame, type, "") { return arg.type == type; }
class QuicSessionTestBase : public QuicTestWithParam<ParsedQuicVersion> {
protected:
QuicSessionTestBase(Perspective perspective, bool configure_session)
: connection_(new StrictMock<MockQuicConnection>(
&helper_, &alarm_factory_, perspective,
SupportedVersions(GetParam()))),
session_(connection_, &session_visitor_),
configure_session_(configure_session) {
session_.config()->SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindowForTest);
session_.config()->SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindowForTest);
if (configure_session) {
if (VersionHasIetfQuicFrames(transport_version())) {
EXPECT_CALL(session_, OnCanCreateNewOutgoingStream(false)).Times(1);
EXPECT_CALL(session_, OnCanCreateNewOutgoingStream(true)).Times(1);
}
QuicConfigPeer::SetReceivedMaxBidirectionalStreams(
session_.config(), kDefaultMaxStreamsPerConnection);
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(
session_.config(), kDefaultMaxStreamsPerConnection);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesUnidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesOutgoingBidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(
session_.config(), kMinimumFlowControlSendWindow);
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
session_.OnConfigNegotiated();
}
TestCryptoStream* crypto_stream = session_.GetMutableCryptoStream();
EXPECT_CALL(*crypto_stream, HasPendingRetransmission())
.Times(testing::AnyNumber());
testing::Mock::VerifyAndClearExpectations(&session_);
}
~QuicSessionTestBase() {
if (configure_session_) {
EXPECT_TRUE(session_.is_configured());
}
}
void CheckClosedStreams() {
QuicStreamId first_stream_id = QuicUtils::GetFirstBidirectionalStreamId(
connection_->transport_version(), Perspective::IS_CLIENT);
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
first_stream_id =
QuicUtils::GetCryptoStreamId(connection_->transport_version());
}
for (QuicStreamId i = first_stream_id; i < 100; i++) {
if (closed_streams_.find(i) == closed_streams_.end()) {
EXPECT_FALSE(session_.IsClosedStream(i)) << " stream id: " << i;
} else {
EXPECT_TRUE(session_.IsClosedStream(i)) << " stream id: " << i;
}
}
}
void CloseStream(QuicStreamId id) {
if (VersionHasIetfQuicFrames(transport_version())) {
if (QuicUtils::GetStreamType(
id, session_.perspective(), session_.IsIncomingStream(id),
connection_->version()) == READ_UNIDIRECTIONAL) {
EXPECT_CALL(*connection_, SendControlFrame(IsFrame(STOP_SENDING_FRAME)))
.Times(1)
.WillOnce(Invoke(&ClearControlFrame));
EXPECT_CALL(*connection_, OnStreamReset(id, _)).Times(1);
} else if (QuicUtils::GetStreamType(
id, session_.perspective(), session_.IsIncomingStream(id),
connection_->version()) == WRITE_UNIDIRECTIONAL) {
EXPECT_CALL(*connection_, SendControlFrame(IsFrame(RST_STREAM_FRAME)))
.Times(1)
.WillOnce(Invoke(&ClearControlFrame));
EXPECT_CALL(*connection_, OnStreamReset(id, _));
} else {
EXPECT_CALL(*connection_, SendControlFrame(IsFrame(RST_STREAM_FRAME)))
.WillRepeatedly(Invoke(&ClearControlFrame));
EXPECT_CALL(*connection_, SendControlFrame(IsFrame(STOP_SENDING_FRAME)))
.WillRepeatedly(Invoke(&ClearControlFrame));
EXPECT_CALL(*connection_, OnStreamReset(id, _));
}
} else {
EXPECT_CALL(*connection_, SendControlFrame(_))
.WillOnce(Invoke(&ClearControlFrame));
EXPECT_CALL(*connection_, OnStreamReset(id, _));
}
session_.ResetStream(id, QUIC_STREAM_CANCELLED);
closed_streams_.insert(id);
}
void CompleteHandshake() {
CryptoHandshakeMessage msg;
if (connection_->version().UsesTls() &&
connection_->perspective() == Perspective::IS_SERVER) {
EXPECT_CALL(*connection_, SendControlFrame(_))
.WillOnce(Invoke(&ClearControlFrame));
}
session_.GetMutableCryptoStream()->OnHandshakeMessage(msg);
}
QuicTransportVersion transport_version() const {
return connection_->transport_version();
}
QuicStreamId GetNthClientInitiatedBidirectionalId(int n) {
return QuicUtils::GetFirstBidirectionalStreamId(
connection_->transport_version(), Perspective::IS_CLIENT) +
QuicUtils::StreamIdDelta(connection_->transport_version()) * n;
}
QuicStreamId GetNthClientInitiatedUnidirectionalId(int n) {
return QuicUtils::GetFirstUnidirectionalStreamId(
connection_->transport_version(), Perspective::IS_CLIENT) +
QuicUtils::StreamIdDelta(connection_->transport_version()) * n;
}
QuicStreamId GetNthServerInitiatedBidirectionalId(int n) {
return QuicUtils::GetFirstBidirectionalStreamId(
connection_->transport_version(), Perspective::IS_SERVER) +
QuicUtils::StreamIdDelta(connection_->transport_version()) * n;
}
QuicStreamId GetNthServerInitiatedUnidirectionalId(int n) {
return QuicUtils::GetFirstUnidirectionalStreamId(
connection_->transport_version(), Perspective::IS_SERVER) +
QuicUtils::StreamIdDelta(connection_->transport_version()) * n;
}
QuicStreamId StreamCountToId(QuicStreamCount stream_count,
Perspective perspective, bool bidirectional) {
QuicStreamId id =
((stream_count - 1) * QuicUtils::StreamIdDelta(transport_version()));
if (!bidirectional) {
id |= 0x2;
}
if (perspective == Perspective::IS_SERVER) {
id |= 0x1;
}
return id;
}
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
NiceMock<MockQuicSessionVisitor> session_visitor_;
StrictMock<MockQuicConnection>* connection_;
TestSession session_;
std::set<QuicStreamId> closed_streams_;
bool configure_session_;
};
class QuicSessionTestServer : public QuicSessionTestBase {
public:
WriteResult CheckMultiPathResponse(const char* buffer, size_t buf_len,
const QuicIpAddress& ,
const QuicSocketAddress& ,
PerPacketOptions* ) {
QuicEncryptedPacket packet(buffer, buf_len);
{
InSequence s;
EXPECT_CALL(framer_visitor_, OnPacket());
EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_));
EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_));
EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_, _));
EXPECT_CALL(framer_visitor_, OnPacketHeader(_));
EXPECT_CALL(framer_visitor_, OnPathResponseFrame(_))
.WillOnce(
WithArg<0>(Invoke([this](const QuicPathResponseFrame& frame) {
EXPECT_EQ(path_frame_buffer1_, frame.data_buffer);
return true;
})));
EXPECT_CALL(framer_visitor_, OnPathResponseFrame(_))
.WillOnce(
WithArg<0>(Invoke([this](const QuicPathResponseFrame& frame) {
EXPECT_EQ(path_frame_buffer2_, frame.data_buffer);
return true;
})));
EXPECT_CALL(framer_visitor_, OnPacketComplete());
}
client_framer_.ProcessPacket(packet);
return WriteResult(WRITE_STATUS_OK, 0);
}
protected:
QuicSessionTestServer()
: QuicSessionTestBase(Perspective::IS_SERVER, true),
path_frame_buffer1_({0, 1, 2, 3, 4, 5, 6, 7}),
path_frame_buffer2_({8, 9, 10, 11, 12, 13, 14, 15}),
client_framer_(SupportedVersions(GetParam()), QuicTime::Zero(),
Perspective::IS_CLIENT, kQuicDefaultConnectionIdLength) {
client_framer_.set_visitor(&framer_visitor_);
client_framer_.SetInitialObfuscators(TestConnectionId());
if (client_framer_.version().KnowsWhichDecrypterToUse()) {
client_framer_.InstallDecrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullDecrypter>(Perspective::IS_CLIENT));
}
}
QuicPathFrameBuffer path_frame_buffer1_;
QuicPathFrameBuffer path_frame_buffer2_;
StrictMock<MockFramerVisitor> framer_visitor_;
QuicFramer client_framer_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicSessionTestServer,
::testing::ValuesIn(AllSupportedVersions()),
::testing::PrintToStringParamName());
TEST_P(QuicSessionTestServer, PeerAddress) {
EXPECT_EQ(QuicSocketAddress(QuicIpAddress::Loopback4(), kTestPort),
session_.peer_address());
}
TEST_P(QuicSessionTestServer, SelfAddress) {
EXPECT_TRUE(session_.self_address().IsInitialized());
}
TEST_P(QuicSessionTestServer, DontCallOnWriteBlockedForDisconnectedConnection) {
EXPECT_CALL(*connection_, CloseConnection(_, _, _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
connection_->CloseConnection(QUIC_NO_ERROR, "Everything is fine.",
ConnectionCloseBehavior::SILENT_CLOSE);
ASSERT_FALSE(connection_->connected());
EXPECT_CALL(session_visitor_, OnWriteBlocked(_)).Times(0);
session_.OnWriteBlocked();
}
TEST_P(QuicSessionTestServer, OneRttKeysAvailable) {
EXPECT_FALSE(session_.OneRttKeysAvailable());
CompleteHandshake();
EXPECT_TRUE(session_.OneRttKeysAvailable());
}
TEST_P(QuicSessionTestServer, IsClosedStreamDefault) {
QuicStreamId first_stream_id = QuicUtils::GetFirstBidirectionalStreamId(
connection_->transport_version(), Perspective::IS_CLIENT);
if (!QuicVersionUsesCryptoFrames(connection_->transport_version())) {
first_stream_id =
QuicUtils::GetCryptoStreamId(connection_->transport_version());
}
for (QuicStreamId i = first_stream_id; i < 100; i++) {
EXPECT_FALSE(session_.IsClosedStream(i)) << "stream id: " << i;
}
}
TEST_P(QuicSessionTestServer, AvailableBidirectionalStreams) {
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedBidirectionalId(3)) != nullptr);
EXPECT_TRUE(QuicSessionPeer::IsStreamAvailable(
&session_, GetNthClientInitiatedBidirectionalId(1)));
EXPECT_TRUE(QuicSessionPeer::IsStreamAvailable(
&session_, GetNthClientInitiatedBidirectionalId(2)));
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedBidirectionalId(2)) != nullptr);
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedBidirectionalId(1)) != nullptr);
}
TEST_P(QuicSessionTestServer, AvailableUnidirectionalStreams) {
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedUnidirectionalId(3)) != nullptr);
EXPECT_TRUE(QuicSessionPeer::IsStreamAvailable(
&session_, GetNthClientInitiatedUnidirectionalId(1)));
EXPECT_TRUE(QuicSessionPeer::IsStreamAvailable(
&session_, GetNthClientInitiatedUnidirectionalId(2)));
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedUnidirectionalId(2)) != nullptr);
ASSERT_TRUE(session_.GetOrCreateStream(
GetNthClientInitiatedUnidirectionalId(1)) != nullptr);
}
TEST_P(QuicSessionTestServer, MaxAvailableBidirectionalStreams) {
if (VersionHasIetfQuicFrames(transport_version())) {
EXPECT_EQ(session_.max_open_incoming_bidirectional_streams(),
session_.MaxAvailableBidirectionalStreams());
} else {
EXPECT_EQ(session_.max_open_incoming_bidirectional_streams() *
kMaxAvailableStreamsMultiplier,
session_.MaxAvailableBidirectionalStreams());
}
}
TEST_P(QuicSessionTestServer, MaxAvailableUnidirectionalStreams) {
if (VersionHasIetfQuicFrames(transport_version())) {
EXPECT_EQ(session_.max_open_incoming_unidirectional_streams(),
session_.MaxAvailableUnidirectionalStreams());
} else {
EXPECT_EQ(session_.max_open_incoming_unidirectional_streams() *
kMaxAvailableStreamsMultiplier,
session_.MaxAvailableUnidirectionalStreams());
}
}
TEST_P(QuicSessionTestServer, IsClosedBidirectionalStreamLocallyCreated) {
CompleteHandshake();
TestStream* stream2 = session_.CreateOutgoingBidirectionalStream();
EXPECT_EQ(GetNthServerInitiatedBidirectionalId(0), stream2->id());
TestStream* stream4 = session_.CreateOutgoingBidirectionalStream();
EXPECT_EQ(GetNthServerInitiatedBidirectionalId(1), stream4->id());
CheckClosedStreams();
CloseStream(GetNthServerInitiatedBidirectionalId(0));
CheckClosedStreams();
CloseStream(GetNthServerInitiatedBidirectionalId(1));
CheckClosedStreams();
}
TEST_P(QuicSessionTestServer, IsClosedUnidirectionalStreamLocallyCreated) {
CompleteHandshake();
TestStream* stream2 = session_.CreateOutgoingUnidirectionalStream();
EXPECT_EQ(GetNthServerInitiatedUnidirectionalId(0), stream2->id());
TestStream* stream4 = session_.CreateOutgoingUnidirectionalStream();
EXPECT_EQ(GetNthServerInitiatedUnidirectionalId(1), stream4->id());
CheckClosedStreams();
CloseStream(GetNthServerInitiatedUnidirectionalId(0));
CheckClosedStreams();
CloseStream(GetNthServerInitiatedUnidirectionalId(1));
CheckClosedStreams();
}
TEST_P(QuicSessionTestServer, IsClosedBidirectionalStreamPeerCreated) {
CompleteHandshake();
QuicStreamId stream_id1 = GetNthClientInitiatedBidirectionalId(0);
QuicStreamId stream_id2 = GetNthClientInitiatedBidirectionalId(1);
session_.GetOrCreateStream(stream_id1);
session_.GetOrCreateStream(stream_id2);
CheckClosedStreams();
CloseStream(stream_id1);
CheckClosedStreams();
CloseStream(stream_id2);
QuicStream* stream3 = session_.GetOrCreateStream(
stream_id2 +
2 * QuicUtils::StreamIdDelta(connection_->transport_version()));
CheckClosedStreams();
CloseStream(stream3->id());
CheckClosedStreams();
}
TEST_P(QuicSessionTestServer, IsClosedUnidirectionalStreamPeerCreated) {
CompleteHandshake();
QuicStreamId stream_id1 = GetNthClientInitiatedUnidirectionalId(0);
QuicStreamId stream_id2 = GetNthClientInitiatedUnidirectionalId(1);
session_.GetOrCreateStream(stream_id1);
session_.GetOrCreateStream(stream_id2);
CheckClosedStreams();
CloseStream(stream_id1);
CheckClosedStreams();
CloseStream(stream_id2);
QuicStream* stream3 = session_.GetOrCreateStream(
stream_id2 +
2 * QuicUtils::StreamIdDelta(connection_->transport_version()));
CheckClosedStreams();
CloseStream(stream3->id());
CheckClosedStreams();
}
TEST_P(QuicSessionTestServer, MaximumAvailableOpenedBidirectionalStreams) {
QuicStreamId stream_id = GetNthClientInitiatedBidir |
247 | cpp | google/quiche | quic_chaos_protector | quiche/quic/core/quic_chaos_protector.cc | quiche/quic/core/quic_chaos_protector_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CHAOS_PROTECTOR_H_
#define QUICHE_QUIC_CORE_QUIC_CHAOS_PROTECTOR_H_
#include <cstddef>
#include <memory>
#include <optional>
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/frames/quic_crypto_frame.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_types.h"
namespace quic {
namespace test {
class QuicChaosProtectorTest;
}
class QUICHE_EXPORT QuicChaosProtector : public QuicStreamFrameDataProducer {
public:
explicit QuicChaosProtector(const QuicCryptoFrame& crypto_frame,
int num_padding_bytes, size_t packet_size,
QuicFramer* framer, QuicRandom* random);
~QuicChaosProtector() override;
QuicChaosProtector(const QuicChaosProtector&) = delete;
QuicChaosProtector(QuicChaosProtector&&) = delete;
QuicChaosProtector& operator=(const QuicChaosProtector&) = delete;
QuicChaosProtector& operator=(QuicChaosProtector&&) = delete;
std::optional<size_t> BuildDataPacket(const QuicPacketHeader& header,
char* buffer);
WriteStreamDataResult WriteStreamData(QuicStreamId id,
QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* ) override;
bool WriteCryptoData(EncryptionLevel level, QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override;
private:
friend class test::QuicChaosProtectorTest;
bool CopyCryptoDataToLocalBuffer();
void SplitCryptoFrame();
void AddPingFrames();
void ReorderFrames();
void SpreadPadding();
std::optional<size_t> BuildPacket(const QuicPacketHeader& header,
char* buffer);
size_t packet_size_;
std::unique_ptr<char[]> crypto_frame_buffer_;
const char* crypto_data_buffer_ = nullptr;
QuicByteCount crypto_data_length_;
QuicStreamOffset crypto_buffer_offset_;
EncryptionLevel level_;
int remaining_padding_bytes_;
QuicFrames frames_;
QuicFramer* framer_;
QuicRandom* random_;
};
}
#endif
#include "quiche/quic/core/quic_chaos_protector.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <memory>
#include <optional>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/frames/quic_crypto_frame.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/frames/quic_padding_frame.h"
#include "quiche/quic/core/frames/quic_ping_frame.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
QuicChaosProtector::QuicChaosProtector(const QuicCryptoFrame& crypto_frame,
int num_padding_bytes,
size_t packet_size, QuicFramer* framer,
QuicRandom* random)
: packet_size_(packet_size),
crypto_data_length_(crypto_frame.data_length),
crypto_buffer_offset_(crypto_frame.offset),
level_(crypto_frame.level),
remaining_padding_bytes_(num_padding_bytes),
framer_(framer),
random_(random) {
QUICHE_DCHECK_NE(framer_, nullptr);
QUICHE_DCHECK_NE(framer_->data_producer(), nullptr);
QUICHE_DCHECK_NE(random_, nullptr);
}
QuicChaosProtector::~QuicChaosProtector() { DeleteFrames(&frames_); }
std::optional<size_t> QuicChaosProtector::BuildDataPacket(
const QuicPacketHeader& header, char* buffer) {
if (!CopyCryptoDataToLocalBuffer()) {
return std::nullopt;
}
SplitCryptoFrame();
AddPingFrames();
SpreadPadding();
ReorderFrames();
return BuildPacket(header, buffer);
}
WriteStreamDataResult QuicChaosProtector::WriteStreamData(
QuicStreamId id, QuicStreamOffset offset, QuicByteCount data_length,
QuicDataWriter* ) {
QUIC_BUG(chaos stream) << "This should never be called; id " << id
<< " offset " << offset << " data_length "
<< data_length;
return STREAM_MISSING;
}
bool QuicChaosProtector::WriteCryptoData(EncryptionLevel level,
QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) {
if (level != level_) {
QUIC_BUG(chaos bad level) << "Unexpected " << level << " != " << level_;
return false;
}
if (offset < crypto_buffer_offset_ || data_length > crypto_data_length_ ||
offset - crypto_buffer_offset_ > crypto_data_length_ - data_length) {
QUIC_BUG(chaos bad lengths)
<< "Unexpected buffer_offset_ " << crypto_buffer_offset_ << " offset "
<< offset << " buffer_length_ " << crypto_data_length_
<< " data_length " << data_length;
return false;
}
writer->WriteBytes(&crypto_data_buffer_[offset - crypto_buffer_offset_],
data_length);
return true;
}
bool QuicChaosProtector::CopyCryptoDataToLocalBuffer() {
crypto_frame_buffer_ = std::make_unique<char[]>(packet_size_);
frames_.push_back(QuicFrame(
new QuicCryptoFrame(level_, crypto_buffer_offset_, crypto_data_length_)));
QuicDataWriter writer(packet_size_, crypto_frame_buffer_.get());
if (!framer_->AppendCryptoFrame(*frames_.front().crypto_frame, &writer)) {
QUIC_BUG(chaos write crypto data);
return false;
}
QuicDataReader reader(crypto_frame_buffer_.get(), writer.length());
uint64_t parsed_offset, parsed_length;
if (!reader.ReadVarInt62(&parsed_offset) ||
!reader.ReadVarInt62(&parsed_length)) {
QUIC_BUG(chaos parse crypto frame);
return false;
}
absl::string_view crypto_data = reader.ReadRemainingPayload();
crypto_data_buffer_ = crypto_data.data();
QUICHE_DCHECK_EQ(parsed_offset, crypto_buffer_offset_);
QUICHE_DCHECK_EQ(parsed_length, crypto_data_length_);
QUICHE_DCHECK_EQ(parsed_length, crypto_data.length());
return true;
}
void QuicChaosProtector::SplitCryptoFrame() {
const int max_overhead_of_adding_a_crypto_frame =
static_cast<int>(QuicFramer::GetMinCryptoFrameSize(
crypto_buffer_offset_ + crypto_data_length_, crypto_data_length_));
constexpr uint64_t kMaxAddedCryptoFrames = 10;
const uint64_t num_added_crypto_frames =
random_->InsecureRandUint64() % (kMaxAddedCryptoFrames + 1);
for (uint64_t i = 0; i < num_added_crypto_frames; i++) {
if (remaining_padding_bytes_ < max_overhead_of_adding_a_crypto_frame) {
break;
}
size_t frame_to_split_index =
random_->InsecureRandUint64() % frames_.size();
QuicCryptoFrame* frame_to_split =
frames_[frame_to_split_index].crypto_frame;
if (frame_to_split->data_length <= 1) {
continue;
}
const int frame_to_split_old_overhead =
static_cast<int>(QuicFramer::GetMinCryptoFrameSize(
frame_to_split->offset, frame_to_split->data_length));
const QuicPacketLength frame_to_split_new_data_length =
1 + (random_->InsecureRandUint64() % (frame_to_split->data_length - 1));
const QuicPacketLength new_frame_data_length =
frame_to_split->data_length - frame_to_split_new_data_length;
const QuicStreamOffset new_frame_offset =
frame_to_split->offset + frame_to_split_new_data_length;
frame_to_split->data_length -= new_frame_data_length;
frames_.push_back(QuicFrame(
new QuicCryptoFrame(level_, new_frame_offset, new_frame_data_length)));
const int frame_to_split_new_overhead =
static_cast<int>(QuicFramer::GetMinCryptoFrameSize(
frame_to_split->offset, frame_to_split->data_length));
const int new_frame_overhead =
static_cast<int>(QuicFramer::GetMinCryptoFrameSize(
new_frame_offset, new_frame_data_length));
QUICHE_DCHECK_LE(frame_to_split_new_overhead, frame_to_split_old_overhead);
remaining_padding_bytes_ -= new_frame_overhead;
remaining_padding_bytes_ -= frame_to_split_new_overhead;
remaining_padding_bytes_ += frame_to_split_old_overhead;
}
}
void QuicChaosProtector::AddPingFrames() {
if (remaining_padding_bytes_ == 0) {
return;
}
constexpr uint64_t kMaxAddedPingFrames = 10;
const uint64_t num_ping_frames =
random_->InsecureRandUint64() %
std::min<uint64_t>(kMaxAddedPingFrames, remaining_padding_bytes_);
for (uint64_t i = 0; i < num_ping_frames; i++) {
frames_.push_back(QuicFrame(QuicPingFrame()));
}
remaining_padding_bytes_ -= static_cast<int>(num_ping_frames);
}
void QuicChaosProtector::ReorderFrames() {
for (size_t i = frames_.size() - 1; i > 0; i--) {
std::swap(frames_[i], frames_[random_->InsecureRandUint64() % (i + 1)]);
}
}
void QuicChaosProtector::SpreadPadding() {
for (auto it = frames_.begin(); it != frames_.end(); ++it) {
const int padding_bytes_in_this_frame =
random_->InsecureRandUint64() % (remaining_padding_bytes_ + 1);
if (padding_bytes_in_this_frame <= 0) {
continue;
}
it = frames_.insert(
it, QuicFrame(QuicPaddingFrame(padding_bytes_in_this_frame)));
++it;
remaining_padding_bytes_ -= padding_bytes_in_this_frame;
}
if (remaining_padding_bytes_ > 0) {
frames_.push_back(QuicFrame(QuicPaddingFrame(remaining_padding_bytes_)));
}
}
std::optional<size_t> QuicChaosProtector::BuildPacket(
const QuicPacketHeader& header, char* buffer) {
QuicStreamFrameDataProducer* original_data_producer =
framer_->data_producer();
framer_->set_data_producer(this);
size_t length =
framer_->BuildDataPacket(header, frames_, buffer, packet_size_, level_);
framer_->set_data_producer(original_data_producer);
if (length == 0) {
return std::nullopt;
}
return length;
}
} | #include "quiche/quic/core/quic_chaos_protector.h"
#include <cstddef>
#include <memory>
#include <optional>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/frames/quic_crypto_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_random.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_quic_framer.h"
namespace quic {
namespace test {
class QuicChaosProtectorTest : public QuicTestWithParam<ParsedQuicVersion>,
public QuicStreamFrameDataProducer {
public:
QuicChaosProtectorTest()
: version_(GetParam()),
framer_({version_}, QuicTime::Zero(), Perspective::IS_CLIENT,
kQuicDefaultConnectionIdLength),
validation_framer_({version_}),
random_(3),
level_(ENCRYPTION_INITIAL),
crypto_offset_(0),
crypto_data_length_(100),
crypto_frame_(level_, crypto_offset_, crypto_data_length_),
num_padding_bytes_(50),
packet_size_(1000),
packet_buffer_(std::make_unique<char[]>(packet_size_)) {
ReCreateChaosProtector();
}
void ReCreateChaosProtector() {
chaos_protector_ = std::make_unique<QuicChaosProtector>(
crypto_frame_, num_padding_bytes_, packet_size_,
SetupHeaderAndFramers(), &random_);
}
WriteStreamDataResult WriteStreamData(QuicStreamId ,
QuicStreamOffset ,
QuicByteCount ,
QuicDataWriter* ) override {
ADD_FAILURE() << "This should never be called";
return STREAM_MISSING;
}
bool WriteCryptoData(EncryptionLevel level, QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override {
EXPECT_EQ(level, level);
EXPECT_EQ(offset, crypto_offset_);
EXPECT_EQ(data_length, crypto_data_length_);
for (QuicByteCount i = 0; i < data_length; i++) {
EXPECT_TRUE(writer->WriteUInt8(static_cast<uint8_t>(i & 0xFF)));
}
return true;
}
protected:
QuicFramer* SetupHeaderAndFramers() {
header_.destination_connection_id = TestConnectionId();
header_.destination_connection_id_included = CONNECTION_ID_PRESENT;
header_.source_connection_id = EmptyQuicConnectionId();
header_.source_connection_id_included = CONNECTION_ID_PRESENT;
header_.reset_flag = false;
header_.version_flag = true;
header_.has_possible_stateless_reset_token = false;
header_.packet_number_length = PACKET_4BYTE_PACKET_NUMBER;
header_.version = version_;
header_.packet_number = QuicPacketNumber(1);
header_.form = IETF_QUIC_LONG_HEADER_PACKET;
header_.long_packet_type = INITIAL;
header_.retry_token_length_length =
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_1;
header_.length_length = quiche::kQuicheDefaultLongHeaderLengthLength;
validation_framer_.framer()->SetInitialObfuscators(
header_.destination_connection_id);
framer_.SetInitialObfuscators(header_.destination_connection_id);
framer_.set_data_producer(this);
return &framer_;
}
void BuildEncryptAndParse() {
std::optional<size_t> length =
chaos_protector_->BuildDataPacket(header_, packet_buffer_.get());
ASSERT_TRUE(length.has_value());
ASSERT_GT(length.value(), 0u);
size_t encrypted_length = framer_.EncryptInPlace(
level_, header_.packet_number,
GetStartOfEncryptedData(framer_.transport_version(), header_),
length.value(), packet_size_, packet_buffer_.get());
ASSERT_GT(encrypted_length, 0u);
ASSERT_TRUE(validation_framer_.ProcessPacket(QuicEncryptedPacket(
absl::string_view(packet_buffer_.get(), encrypted_length))));
}
void ResetOffset(QuicStreamOffset offset) {
crypto_offset_ = offset;
crypto_frame_.offset = offset;
ReCreateChaosProtector();
}
void ResetLength(QuicByteCount length) {
crypto_data_length_ = length;
crypto_frame_.data_length = length;
ReCreateChaosProtector();
}
ParsedQuicVersion version_;
QuicPacketHeader header_;
QuicFramer framer_;
SimpleQuicFramer validation_framer_;
MockRandom random_;
EncryptionLevel level_;
QuicStreamOffset crypto_offset_;
QuicByteCount crypto_data_length_;
QuicCryptoFrame crypto_frame_;
int num_padding_bytes_;
size_t packet_size_;
std::unique_ptr<char[]> packet_buffer_;
std::unique_ptr<QuicChaosProtector> chaos_protector_;
};
namespace {
ParsedQuicVersionVector TestVersions() {
ParsedQuicVersionVector versions;
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
if (version.UsesCryptoFrames()) {
versions.push_back(version);
}
}
return versions;
}
INSTANTIATE_TEST_SUITE_P(QuicChaosProtectorTests, QuicChaosProtectorTest,
::testing::ValuesIn(TestVersions()),
::testing::PrintToStringParamName());
TEST_P(QuicChaosProtectorTest, Main) {
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 4u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->offset, 0u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->data_length, 1u);
ASSERT_EQ(validation_framer_.ping_frames().size(), 3u);
ASSERT_EQ(validation_framer_.padding_frames().size(), 7u);
EXPECT_EQ(validation_framer_.padding_frames()[0].num_padding_bytes, 3);
}
TEST_P(QuicChaosProtectorTest, DifferentRandom) {
random_.ResetBase(4);
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 4u);
ASSERT_EQ(validation_framer_.ping_frames().size(), 4u);
ASSERT_EQ(validation_framer_.padding_frames().size(), 8u);
}
TEST_P(QuicChaosProtectorTest, RandomnessZero) {
random_.ResetBase(0);
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 1u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->offset, crypto_offset_);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->data_length,
crypto_data_length_);
ASSERT_EQ(validation_framer_.ping_frames().size(), 0u);
ASSERT_EQ(validation_framer_.padding_frames().size(), 1u);
}
TEST_P(QuicChaosProtectorTest, Offset) {
ResetOffset(123);
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 4u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->offset, crypto_offset_);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->data_length, 1u);
ASSERT_EQ(validation_framer_.ping_frames().size(), 3u);
ASSERT_EQ(validation_framer_.padding_frames().size(), 7u);
EXPECT_EQ(validation_framer_.padding_frames()[0].num_padding_bytes, 3);
}
TEST_P(QuicChaosProtectorTest, OffsetAndRandomnessZero) {
ResetOffset(123);
random_.ResetBase(0);
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 1u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->offset, crypto_offset_);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->data_length,
crypto_data_length_);
ASSERT_EQ(validation_framer_.ping_frames().size(), 0u);
ASSERT_EQ(validation_framer_.padding_frames().size(), 1u);
}
TEST_P(QuicChaosProtectorTest, ZeroRemainingBytesAfterSplit) {
QuicPacketLength new_length = 63;
num_padding_bytes_ = QuicFramer::GetMinCryptoFrameSize(
crypto_frame_.offset + new_length, new_length);
ResetLength(new_length);
BuildEncryptAndParse();
ASSERT_EQ(validation_framer_.crypto_frames().size(), 2u);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->offset, crypto_offset_);
EXPECT_EQ(validation_framer_.crypto_frames()[0]->data_length, 4);
EXPECT_EQ(validation_framer_.crypto_frames()[1]->offset, crypto_offset_ + 4);
EXPECT_EQ(validation_framer_.crypto_frames()[1]->data_length,
crypto_data_length_ - 4);
ASSERT_EQ(validation_framer_.ping_frames().size(), 0u);
}
}
}
} |
248 | cpp | google/quiche | quic_dispatcher | quiche/quic/core/quic_dispatcher.cc | quiche/quic/core/quic_dispatcher_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_DISPATCHER_H_
#define QUICHE_QUIC_CORE_QUIC_DISPATCHER_H_
#include <cstddef>
#include <cstdint>
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "absl/container/flat_hash_map.h"
#include "absl/container/flat_hash_set.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/crypto/quic_compressed_certs_cache.h"
#include "quiche/quic/core/frames/quic_rst_stream_frame.h"
#include "quiche/quic/core/frames/quic_stop_sending_frame.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/core/quic_blocked_writer_list.h"
#include "quiche/quic/core/quic_buffered_packet_store.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_process_packet_interface.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_time_wait_list_manager.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_version_manager.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
namespace test {
class QuicDispatcherPeer;
}
class QuicConfig;
class QuicCryptoServerConfig;
class QUICHE_EXPORT QuicDispatcher
: public QuicTimeWaitListManager::Visitor,
public ProcessPacketInterface,
public QuicBufferedPacketStore::VisitorInterface {
public:
QuicDispatcher(
const QuicConfig* config, const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager,
std::unique_ptr<QuicConnectionHelperInterface> helper,
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
std::unique_ptr<QuicAlarmFactory> alarm_factory,
uint8_t expected_server_connection_id_length,
ConnectionIdGeneratorInterface& connection_id_generator);
QuicDispatcher(const QuicDispatcher&) = delete;
QuicDispatcher& operator=(const QuicDispatcher&) = delete;
~QuicDispatcher() override;
void InitializeWithWriter(QuicPacketWriter* writer);
void ProcessPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet) override;
virtual void OnCanWrite();
virtual bool HasPendingWrites() const;
void Shutdown();
void OnConnectionClosed(QuicConnectionId server_connection_id,
QuicErrorCode error, const std::string& error_details,
ConnectionCloseSource source) override;
void OnWriteBlocked(QuicBlockedWriterInterface* blocked_writer) override;
void OnRstStreamReceived(const QuicRstStreamFrame& frame) override;
void OnStopSendingReceived(const QuicStopSendingFrame& frame) override;
bool TryAddNewConnectionId(
const QuicConnectionId& server_connection_id,
const QuicConnectionId& new_connection_id) override;
void OnConnectionIdRetired(
const QuicConnectionId& server_connection_id) override;
void OnServerPreferredAddressAvailable(
const QuicSocketAddress& ) override {
QUICHE_DCHECK(false);
}
void OnConnectionAddedToTimeWaitList(
QuicConnectionId server_connection_id) override;
using ReferenceCountedSessionMap =
absl::flat_hash_map<QuicConnectionId, std::shared_ptr<QuicSession>,
QuicConnectionIdHash>;
size_t NumSessions() const;
virtual void DeleteSessions();
void ClearStatelessResetAddresses();
using ConnectionIdMap =
absl::flat_hash_map<QuicConnectionId, QuicConnectionId,
QuicConnectionIdHash>;
void OnExpiredPackets(QuicConnectionId server_connection_id,
QuicBufferedPacketStore::BufferedPacketList
early_arrived_packets) override;
void OnPathDegrading() override {}
virtual void ProcessBufferedChlos(size_t max_connections_to_create);
virtual bool HasChlosBuffered() const;
void StartAcceptingNewConnections();
void StopAcceptingNewConnections();
void PerformActionOnActiveSessions(
quiche::UnretainedCallback<void(QuicSession*)> operation) const;
std::vector<std::shared_ptr<QuicSession>> GetSessionsSnapshot() const;
bool accept_new_connections() const { return accept_new_connections_; }
uint64_t num_packets_received() const { return num_packets_received_; }
protected:
virtual std::unique_ptr<QuicSession> CreateQuicSession(
QuicConnectionId server_connection_id,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, absl::string_view alpn,
const ParsedQuicVersion& version, const ParsedClientHello& parsed_chlo,
ConnectionIdGeneratorInterface& connection_id_generator) = 0;
virtual bool MaybeDispatchPacket(const ReceivedPacketInfo& packet_info);
enum QuicPacketFate {
kFateProcess,
kFateTimeWait,
kFateDrop,
};
virtual QuicPacketFate ValidityChecks(const ReceivedPacketInfo& packet_info);
virtual QuicPacketFate ValidityChecksOnFullChlo(
const ReceivedPacketInfo& ,
const ParsedClientHello& ) const {
return kFateProcess;
}
virtual QuicTimeWaitListManager* CreateQuicTimeWaitListManager();
void BufferEarlyPacket(const ReceivedPacketInfo& packet_info);
void ProcessChlo(ParsedClientHello parsed_chlo,
ReceivedPacketInfo* packet_info);
QuicTimeWaitListManager* time_wait_list_manager() {
return time_wait_list_manager_.get();
}
const ParsedQuicVersionVector& GetSupportedVersions();
const QuicConfig& config() const { return *config_; }
const QuicCryptoServerConfig* crypto_config() const { return crypto_config_; }
QuicCompressedCertsCache* compressed_certs_cache() {
return &compressed_certs_cache_;
}
QuicConnectionHelperInterface* helper() { return helper_.get(); }
QuicCryptoServerStreamBase::Helper* session_helper() {
return session_helper_.get();
}
const QuicCryptoServerStreamBase::Helper* session_helper() const {
return session_helper_.get();
}
QuicAlarmFactory* alarm_factory() { return alarm_factory_.get(); }
QuicPacketWriter* writer() { return writer_.get(); }
virtual bool ShouldCreateSessionForUnknownVersion(
const ReceivedPacketInfo& packet_info);
void SetLastError(QuicErrorCode error);
virtual bool OnFailedToDispatchPacket(const ReceivedPacketInfo& packet_info);
bool HasBufferedPackets(QuicConnectionId server_connection_id);
virtual void OnBufferPacketFailure(
QuicBufferedPacketStore::EnqueuePacketResult result,
QuicConnectionId server_connection_id);
void CleanUpSession(QuicConnectionId server_connection_id,
QuicConnection* connection, QuicErrorCode error,
const std::string& error_details,
ConnectionCloseSource source);
void StatelesslyTerminateConnection(
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
QuicConnectionId server_connection_id, PacketHeaderFormat format,
bool version_flag, bool use_length_prefix, ParsedQuicVersion version,
QuicErrorCode error_code, const std::string& error_details,
QuicTimeWaitListManager::TimeWaitAction action);
virtual std::unique_ptr<QuicPerPacketContext> GetPerPacketContext() const;
virtual void RestorePerPacketContext(
std::unique_ptr<QuicPerPacketContext> ) {}
void SetShouldUpdateExpectedServerConnectionIdLength(
bool should_update_expected_server_connection_id_length) {
should_update_expected_server_connection_id_length_ =
should_update_expected_server_connection_id_length;
}
void SetAllowShortInitialServerConnectionIds(
bool allow_short_initial_server_connection_ids) {
allow_short_initial_server_connection_ids_ =
allow_short_initial_server_connection_ids;
}
virtual void OnNewConnectionRejected() {}
virtual void OnStatelessConnectionCloseGenerated(
const QuicSocketAddress& ,
const QuicSocketAddress& ,
QuicConnectionId , ParsedQuicVersion ,
QuicErrorCode , const std::string& ) {}
std::string SelectAlpn(const std::vector<std::string>& alpns);
virtual void MaybeResetPacketsWithNoVersion(
const quic::ReceivedPacketInfo& packet_info);
virtual void MaybeSendVersionNegotiationPacket(
const ReceivedPacketInfo& packet_info);
virtual ConnectionIdGeneratorInterface& ConnectionIdGenerator() {
return connection_id_generator_;
}
private:
friend class test::QuicDispatcherPeer;
void ProcessHeader(ReceivedPacketInfo* packet_info);
struct ExtractChloResult {
std::optional<ParsedClientHello> parsed_chlo;
std::optional<uint8_t> tls_alert;
};
ExtractChloResult TryExtractChloOrBufferEarlyPacket(
const ReceivedPacketInfo& packet_info);
void DeliverPacketsToSession(
const std::list<QuicBufferedPacketStore::BufferedPacket>& packets,
QuicSession* session);
bool IsSupportedVersion(const ParsedQuicVersion version);
bool IsServerConnectionIdTooShort(QuicConnectionId connection_id) const;
std::shared_ptr<QuicSession> CreateSessionFromChlo(
QuicConnectionId original_connection_id,
const ParsedClientHello& parsed_chlo, ParsedQuicVersion version,
QuicSocketAddress self_address, QuicSocketAddress peer_address,
ConnectionIdGeneratorInterface* connection_id_generator);
const QuicConfig* config_;
const QuicCryptoServerConfig* crypto_config_;
QuicCompressedCertsCache compressed_certs_cache_;
QuicBlockedWriterList write_blocked_list_;
ReferenceCountedSessionMap reference_counted_session_map_;
std::unique_ptr<QuicTimeWaitListManager> time_wait_list_manager_;
std::vector<std::shared_ptr<QuicSession>> closed_session_list_;
std::unique_ptr<QuicConnectionHelperInterface> helper_;
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper_;
std::unique_ptr<QuicAlarmFactory> alarm_factory_;
std::unique_ptr<QuicAlarm> delete_sessions_alarm_;
std::unique_ptr<QuicPacketWriter> writer_;
QuicBufferedPacketStore buffered_packets_;
QuicVersionManager* version_manager_;
QuicErrorCode last_error_;
size_t num_sessions_in_session_map_ = 0;
uint64_t num_packets_received_ = 0;
int16_t new_sessions_allowed_per_event_loop_;
bool accept_new_connections_;
bool allow_short_initial_server_connection_ids_;
uint8_t expected_server_connection_id_length_;
absl::flat_hash_set<QuicSocketAddress, QuicSocketAddressHash>
recent_stateless_reset_addresses_;
std::unique_ptr<QuicAlarm> clear_stateless_reset_addresses_alarm_;
bool should_update_expected_server_connection_id_length_;
ConnectionIdGeneratorInterface& connection_id_generator_;
};
}
#endif
#include "quiche/quic/core/quic_dispatcher.h"
#include <openssl/ssl.h>
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <list>
#include <memory>
#include <optional>
#include <ostream>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/base/optimization.h"
#include "absl/container/flat_hash_set.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/chlo_extractor.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/crypto/crypto_handshake_message.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/quic_compressed_certs_cache.h"
#include "quiche/quic/core/frames/quic_connection_close_frame.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/frames/quic_rst_stream_frame.h"
#include "quiche/quic/core/frames/quic_stop_sending_frame.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/core/quic_buffered_packet_store.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_stream_send_buffer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_time_wait_list_manager.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_version_manager.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_chlo_extractor.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_stack_trace.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/print_elements.h"
#include "quiche/common/quiche_buffer_allocator.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
using BufferedPacket = QuicBufferedPacketStore::BufferedPacket;
using BufferedPacketList = QuicBufferedPacketStore::BufferedPacketList;
using EnqueuePacketResult = QuicBufferedPacketStore::EnqueuePacketResult;
namespace {
const QuicPacketLength kMinClientInitialPacketLength = 1200;
class DeleteSessionsAlarm : public QuicAlarm::DelegateWithoutContext {
public:
explicit DeleteSessionsAlarm(QuicDispatcher* dispatcher)
: dispatcher_(dispatcher) {}
DeleteSessionsAlarm(const DeleteSessionsAlarm&) = delete;
DeleteSessionsAlarm& operator=(const DeleteSessionsAlarm&) = delete;
void OnAlarm() override { dispatcher_->DeleteSessions(); }
private:
QuicDispatcher* dispatcher_;
};
class ClearStatelessResetAddressesAlarm
: public QuicAlarm::DelegateWithoutContext {
public:
explicit ClearStatelessResetAddressesAlarm(QuicDispatcher* dispatcher)
: dispatcher_(dispatcher) {}
ClearStatelessResetAddressesAlarm(const DeleteSessionsAlarm&) = delete;
ClearStatelessResetAddressesAlarm& operator=(const DeleteSessionsAlarm&) =
delete;
void OnAlarm() override { dispatcher_->ClearStatelessResetAddresses(); }
private:
QuicDispatcher* dispatcher_;
};
class StatelessConnectionTerminator {
public:
StatelessConnectionTerminator(QuicConnectionId server_connection_id,
QuicConnectionId original_server_connection_id,
const ParsedQuicVersion version,
QuicConnectionHelperInterface* helper,
QuicTimeWaitListManager* time_wait_list_manager)
: server_connection_id_(server_connection_id),
framer_(ParsedQuicVersionVector{version},
QuicTime::Zero(), Perspective::IS_SERVER,
kQuicDefaultConnectionIdLength),
collector_(helper->GetStreamSendBufferAllocator()),
creator_(server_connection_id, &framer_, &collector_),
time_wait_list_manager_(time_wait_list_manager) {
framer_.set_data_producer(&collector_);
framer_.SetInitialObfuscators(original_server_connection_id);
}
~StatelessConnectionTerminator() {
framer_.set_data_producer(nullptr);
}
void CloseConnection(QuicErrorCode error_code,
const std::string& error_details, bool ietf_quic,
std::vector<QuicConnectionId> active_connection_ids) {
SerializeConnectionClosePacket(error_code, error_details);
time_wait_list_manager_->AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_TERMINATION_PACKETS,
TimeWaitConnectionInfo(ietf_quic, collector_.packets(),
std::move(active_connection_ids),
QuicTime::Delta::Zero()));
}
private:
void SerializeConnectionClosePacket(QuicErrorCode error_code,
const std::string& error_details) {
QuicConnectionCloseFrame* frame =
new QuicConnectionCloseFrame(framer_.transport_version(), error_code,
NO_IETF_QUIC_ERROR, error_details,
0);
if (!creator_.AddFrame(QuicFrame(frame), NOT_RETRANSMISSION)) {
QUIC_BUG(quic_bug_10287_1) << "Unable to add frame to an empty packet";
delete frame;
return;
}
creator_.FlushCurrentPacket();
QUICHE_DCHECK_EQ(1u, collector_.packets()->size());
}
QuicConnectionId server_connection_id_;
QuicFramer framer_;
PacketCollector collector_;
QuicPacketCreator creator_;
QuicTimeWaitListManager* time_wait_list_manager_;
};
class ChloAlpnSniExtractor : public ChloExtractor::Delegate {
public:
void OnChlo(QuicTransportVersion ,
QuicConnectionId ,
const CryptoHandshakeMessage& chlo) override {
absl::string_view alpn_value;
if (chlo.GetStringPiece(kALPN, &alpn_value)) {
alpn_ = std::string(alpn_value);
}
absl::string_view sni;
if (chlo.GetStringPiece(quic::kSNI, &sni)) {
sni_ = std::string(sni);
}
absl::string_view uaid_value;
if (chlo.GetStringPiece(quic::kUAID, &uaid_value)) {
uaid_ = std::string(uaid_value);
}
}
std::string&& ConsumeAlpn() { return std::move(alpn_); }
std::string&& ConsumeSni() { return std::move(sni_); }
std::string&& ConsumeUaid() { return std::move(uaid_); }
private:
std::string alpn_;
std::string sni_;
std::string uaid_;
};
}
QuicDispatcher::QuicDispatcher(
const QuicConfig* config, const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager,
std::unique_ptr<QuicConnectionHelperInterface> helper,
std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
std::unique_ptr<QuicAlarmFactory> alarm_factory,
uint8_t expected_server_connection_id_length,
ConnectionIdGeneratorInterface& connection_id_generator)
: config_(config),
crypto_config_(crypto_config),
compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
helper_(std::move(helper)),
session_helper_(std::move(session_helper)),
alarm_factory_(std::move(alarm_factory)),
delete_sessions_alarm_(
alarm_factory_->CreateAlarm(new DeleteSessionsAlarm(this))),
buffered_packets_(this, helper_->GetClock(), alarm_factory_.get()),
version_manager_(version_manager),
last_error_(QUIC_NO_ERROR),
new_sessions_allowed_per_event_loop_(0u),
accept_new_connections_(true),
allow_short_initial_server_connection_ids_(false),
expected_server_connection_id_length_(
expected_server_connection_id_length),
clear_stateless_reset_addresses_alarm_(alarm_factory_->CreateAlarm(
new ClearStatelessResetAddressesAlarm(this))),
should_update_expected_server_connection_id_length_(false),
connection_id_generator_(connection_id_generator) {
QUIC_BUG_IF(quic_bug_12724_1, GetSupportedVersions().empty())
<< "Trying to create dispatcher without any supported versions";
QUIC_DLOG(INFO) << "Created QuicDispatcher with versions: "
<< ParsedQuicVersionVectorToString(GetSupportedVersions());
}
QuicDispatcher::~QuicDispatcher() {
if (delete_sessions_alarm_ != nullptr) {
delete_sessions_alarm_->PermanentCancel();
}
if (clear_stateless_reset_addresses_alarm_ != nullptr) {
clear_stateless_reset_addresses_alarm_->PermanentCancel();
}
reference_counted_session_map_.clear();
closed_session_list_.clear();
num_sessions_in_session_map_ = 0;
}
void QuicDispatcher::InitializeWithWriter(QuicPacketWriter* writer) {
QUICHE_DCHECK(writer_ == nullptr);
writer_.reset(writer);
time_wait_list_manager_.reset(CreateQuicTimeWaitListManager());
}
void QuicDispatcher::ProcessPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet) {
QUIC_DVLOG(2) << "Dispatcher received encrypted " << packet.length()
<< " bytes:" << std::endl
<< quiche::QuicheTextUtils::HexDump(
absl::string_view(packet.data(), packet.length()));
++num_packets_received_;
ReceivedPacketInfo packet_info(self_address, peer_address, packet);
std::string detailed_error;
QuicErrorCode error;
error = QuicFramer::ParsePublicHeaderDispatcherShortHeaderLengthUnknown(
packet, &packet_info.form, &packet_info.long_packet_type,
&packet_info.version_flag, &packet_info.use_length_prefix,
&packet_info.version_label, &packet_info.version,
&packet_info.destination_connection_id, &packet_info.source_connection_id,
&packet_info.retry_token, &detailed_error, connection_id_generator_);
if (error != QUIC_NO_ERROR) {
SetLastError(error);
QUIC_DLOG(ERROR) << detailed_error;
return;
}
if (packet_info.destination_connection_id.length() !=
expected_server_connection_id_length_ &&
!should_update_expected_server_connection_id_length_ &&
packet_info.version.IsKnown() &&
!packet_info.version.AllowsVariableLengthConnectionIds()) {
SetLastError(QUIC_INVALID_PACKET_HEADER);
QUIC_DLOG(ERROR) << "Invalid Connection Id Length";
return;
}
if (packet_info.version_flag && IsSupportedVersion(packet_info.version)) {
if (!QuicUtils::IsConnectionIdValidForVersion(
packet_info.destination_connection_id, | #include "quiche/quic/core/quic_dispatcher.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <list>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/chlo_extractor.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/quic_compressed_certs_cache.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/frames/quic_connection_close_frame.h"
#include "quiche/quic/core/http/quic_server_session_base.h"
#include "quiche/quic/core/http/quic_spdy_stream.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packet_writer_wrapper.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_time_wait_list_manager.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_version_manager.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/first_flight.h"
#include "quiche/quic/test_tools/mock_connection_id_generator.h"
#include "quiche/quic/test_tools/mock_quic_time_wait_list_manager.h"
#include "quiche/quic/test_tools/quic_buffered_packet_store_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_dispatcher_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/tools/quic_simple_crypto_server_stream_helper.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
using testing::_;
using testing::AllOf;
using testing::ByMove;
using testing::ElementsAreArray;
using testing::Eq;
using testing::Field;
using testing::InSequence;
using testing::Invoke;
using testing::IsEmpty;
using testing::NiceMock;
using testing::Not;
using testing::Ref;
using testing::Return;
using testing::ReturnRef;
using testing::WithArg;
using testing::WithoutArgs;
static const size_t kDefaultMaxConnectionsInStore = 100;
static const size_t kMaxConnectionsWithoutCHLO =
kDefaultMaxConnectionsInStore / 2;
static const int16_t kMaxNumSessionsToCreate = 16;
namespace quic {
namespace test {
namespace {
const QuicConnectionId kReturnConnectionId{
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}};
class TestQuicSpdyServerSession : public QuicServerSessionBase {
public:
TestQuicSpdyServerSession(const QuicConfig& config,
QuicConnection* connection,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache)
: QuicServerSessionBase(config, CurrentSupportedVersions(), connection,
nullptr, nullptr, crypto_config,
compressed_certs_cache) {
Initialize();
}
TestQuicSpdyServerSession(const TestQuicSpdyServerSession&) = delete;
TestQuicSpdyServerSession& operator=(const TestQuicSpdyServerSession&) =
delete;
~TestQuicSpdyServerSession() override { DeleteConnection(); }
MOCK_METHOD(void, OnConnectionClosed,
(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source),
(override));
MOCK_METHOD(QuicSpdyStream*, CreateIncomingStream, (QuicStreamId id),
(override));
MOCK_METHOD(QuicSpdyStream*, CreateIncomingStream, (PendingStream*),
(override));
MOCK_METHOD(QuicSpdyStream*, CreateOutgoingBidirectionalStream, (),
(override));
MOCK_METHOD(QuicSpdyStream*, CreateOutgoingUnidirectionalStream, (),
(override));
std::unique_ptr<QuicCryptoServerStreamBase> CreateQuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache) override {
return CreateCryptoServerStream(crypto_config, compressed_certs_cache, this,
stream_helper());
}
QuicCryptoServerStreamBase::Helper* stream_helper() {
return QuicServerSessionBase::stream_helper();
}
};
class TestDispatcher : public QuicDispatcher {
public:
TestDispatcher(const QuicConfig* config,
const QuicCryptoServerConfig* crypto_config,
QuicVersionManager* version_manager, QuicRandom* random,
ConnectionIdGeneratorInterface& generator)
: QuicDispatcher(config, crypto_config, version_manager,
std::make_unique<MockQuicConnectionHelper>(),
std::unique_ptr<QuicCryptoServerStreamBase::Helper>(
new QuicSimpleCryptoServerStreamHelper()),
std::make_unique<TestAlarmFactory>(),
kQuicDefaultConnectionIdLength, generator),
random_(random) {
EXPECT_CALL(*this, ConnectionIdGenerator())
.WillRepeatedly(ReturnRef(generator));
}
MOCK_METHOD(std::unique_ptr<QuicSession>, CreateQuicSession,
(QuicConnectionId connection_id,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, absl::string_view alpn,
const ParsedQuicVersion& version,
const ParsedClientHello& parsed_chlo,
ConnectionIdGeneratorInterface& connection_id_generator),
(override));
MOCK_METHOD(ConnectionIdGeneratorInterface&, ConnectionIdGenerator, (),
(override));
struct TestQuicPerPacketContext : public QuicPerPacketContext {
std::string custom_packet_context;
};
std::unique_ptr<QuicPerPacketContext> GetPerPacketContext() const override {
auto test_context = std::make_unique<TestQuicPerPacketContext>();
test_context->custom_packet_context = custom_packet_context_;
return std::move(test_context);
}
void RestorePerPacketContext(
std::unique_ptr<QuicPerPacketContext> context) override {
TestQuicPerPacketContext* test_context =
static_cast<TestQuicPerPacketContext*>(context.get());
custom_packet_context_ = test_context->custom_packet_context;
}
std::string custom_packet_context_;
using QuicDispatcher::ConnectionIdGenerator;
using QuicDispatcher::MaybeDispatchPacket;
using QuicDispatcher::SetAllowShortInitialServerConnectionIds;
using QuicDispatcher::writer;
QuicRandom* random_;
};
class MockServerConnection : public MockQuicConnection {
public:
MockServerConnection(QuicConnectionId connection_id,
MockQuicConnectionHelper* helper,
MockAlarmFactory* alarm_factory,
QuicDispatcher* dispatcher)
: MockQuicConnection(connection_id, helper, alarm_factory,
Perspective::IS_SERVER),
dispatcher_(dispatcher),
active_connection_ids_({connection_id}) {}
void AddNewConnectionId(QuicConnectionId id) {
if (!dispatcher_->TryAddNewConnectionId(active_connection_ids_.back(),
id)) {
return;
}
QuicConnectionPeer::SetServerConnectionId(this, id);
active_connection_ids_.push_back(id);
}
void UnconditionallyAddNewConnectionIdForTest(QuicConnectionId id) {
dispatcher_->TryAddNewConnectionId(active_connection_ids_.back(), id);
active_connection_ids_.push_back(id);
}
void RetireConnectionId(QuicConnectionId id) {
auto it = std::find(active_connection_ids_.begin(),
active_connection_ids_.end(), id);
QUICHE_DCHECK(it != active_connection_ids_.end());
dispatcher_->OnConnectionIdRetired(id);
active_connection_ids_.erase(it);
}
std::vector<QuicConnectionId> GetActiveServerConnectionIds() const override {
std::vector<QuicConnectionId> result;
for (const auto& cid : active_connection_ids_) {
result.push_back(cid);
}
auto original_connection_id = GetOriginalDestinationConnectionId();
if (std::find(result.begin(), result.end(), original_connection_id) ==
result.end()) {
result.push_back(original_connection_id);
}
return result;
}
void UnregisterOnConnectionClosed() {
QUIC_LOG(ERROR) << "Unregistering " << connection_id();
dispatcher_->OnConnectionClosed(connection_id(), QUIC_NO_ERROR,
"Unregistering.",
ConnectionCloseSource::FROM_SELF);
}
private:
QuicDispatcher* dispatcher_;
std::vector<QuicConnectionId> active_connection_ids_;
};
class QuicDispatcherTestBase : public QuicTestWithParam<ParsedQuicVersion> {
public:
QuicDispatcherTestBase()
: QuicDispatcherTestBase(crypto_test_utils::ProofSourceForTesting()) {}
explicit QuicDispatcherTestBase(std::unique_ptr<ProofSource> proof_source)
: version_(GetParam()),
version_manager_(AllSupportedVersions()),
crypto_config_(QuicCryptoServerConfig::TESTING,
QuicRandom::GetInstance(), std::move(proof_source),
KeyExchangeSource::Default()),
server_address_(QuicIpAddress::Any4(), 5),
dispatcher_(new NiceMock<TestDispatcher>(
&config_, &crypto_config_, &version_manager_,
mock_helper_.GetRandomGenerator(), connection_id_generator_)),
time_wait_list_manager_(nullptr),
session1_(nullptr),
session2_(nullptr),
store_(nullptr),
connection_id_(1) {}
void SetUp() override {
dispatcher_->InitializeWithWriter(new NiceMock<MockPacketWriter>());
QuicDispatcherPeer::set_new_sessions_allowed_per_event_loop(
dispatcher_.get(), kMaxNumSessionsToCreate);
}
MockQuicConnection* connection1() {
if (session1_ == nullptr) {
return nullptr;
}
return reinterpret_cast<MockQuicConnection*>(session1_->connection());
}
MockQuicConnection* connection2() {
if (session2_ == nullptr) {
return nullptr;
}
return reinterpret_cast<MockQuicConnection*>(session2_->connection());
}
void ProcessPacket(QuicSocketAddress peer_address,
QuicConnectionId server_connection_id,
bool has_version_flag, const std::string& data) {
ProcessPacket(peer_address, server_connection_id, has_version_flag, data,
CONNECTION_ID_PRESENT, PACKET_4BYTE_PACKET_NUMBER);
}
void ProcessPacket(QuicSocketAddress peer_address,
QuicConnectionId server_connection_id,
bool has_version_flag, const std::string& data,
QuicConnectionIdIncluded server_connection_id_included,
QuicPacketNumberLength packet_number_length) {
ProcessPacket(peer_address, server_connection_id, has_version_flag, data,
server_connection_id_included, packet_number_length, 1);
}
void ProcessPacket(QuicSocketAddress peer_address,
QuicConnectionId server_connection_id,
bool has_version_flag, const std::string& data,
QuicConnectionIdIncluded server_connection_id_included,
QuicPacketNumberLength packet_number_length,
uint64_t packet_number) {
ProcessPacket(peer_address, server_connection_id, has_version_flag,
version_, data, true, server_connection_id_included,
packet_number_length, packet_number);
}
void ProcessPacket(QuicSocketAddress peer_address,
QuicConnectionId server_connection_id,
bool has_version_flag, ParsedQuicVersion version,
const std::string& data, bool full_padding,
QuicConnectionIdIncluded server_connection_id_included,
QuicPacketNumberLength packet_number_length,
uint64_t packet_number) {
ProcessPacket(peer_address, server_connection_id, EmptyQuicConnectionId(),
has_version_flag, version, data, full_padding,
server_connection_id_included, CONNECTION_ID_ABSENT,
packet_number_length, packet_number);
}
void ProcessPacket(QuicSocketAddress peer_address,
QuicConnectionId server_connection_id,
QuicConnectionId client_connection_id,
bool has_version_flag, ParsedQuicVersion version,
const std::string& data, bool full_padding,
QuicConnectionIdIncluded server_connection_id_included,
QuicConnectionIdIncluded client_connection_id_included,
QuicPacketNumberLength packet_number_length,
uint64_t packet_number) {
ParsedQuicVersionVector versions(SupportedVersions(version));
std::unique_ptr<QuicEncryptedPacket> packet(ConstructEncryptedPacket(
server_connection_id, client_connection_id, has_version_flag, false,
packet_number, data, full_padding, server_connection_id_included,
client_connection_id_included, packet_number_length, &versions));
std::unique_ptr<QuicReceivedPacket> received_packet(
ConstructReceivedPacket(*packet, mock_helper_.GetClock()->Now()));
if (!has_version_flag || !version.AllowsVariableLengthConnectionIds() ||
server_connection_id.length() == 0 ||
server_connection_id_included == CONNECTION_ID_ABSENT) {
EXPECT_CALL(connection_id_generator_, ConnectionIdLength(_))
.WillRepeatedly(Return(generated_connection_id_.has_value()
? generated_connection_id_->length()
: kQuicDefaultConnectionIdLength));
}
ProcessReceivedPacket(std::move(received_packet), peer_address, version,
server_connection_id);
}
void ProcessReceivedPacket(
std::unique_ptr<QuicReceivedPacket> received_packet,
const QuicSocketAddress& peer_address, const ParsedQuicVersion& version,
const QuicConnectionId& server_connection_id) {
if (version.UsesQuicCrypto() &&
ChloExtractor::Extract(*received_packet, version, {}, nullptr,
server_connection_id.length())) {
data_connection_map_[server_connection_id].push_front(
std::string(received_packet->data(), received_packet->length()));
} else {
data_connection_map_[server_connection_id].push_back(
std::string(received_packet->data(), received_packet->length()));
}
dispatcher_->ProcessPacket(server_address_, peer_address, *received_packet);
}
void ValidatePacket(QuicConnectionId conn_id,
const QuicEncryptedPacket& packet) {
EXPECT_EQ(data_connection_map_[conn_id].front().length(),
packet.AsStringPiece().length());
EXPECT_EQ(data_connection_map_[conn_id].front(), packet.AsStringPiece());
data_connection_map_[conn_id].pop_front();
}
std::unique_ptr<QuicSession> CreateSession(
TestDispatcher* dispatcher, const QuicConfig& config,
QuicConnectionId connection_id, const QuicSocketAddress& ,
MockQuicConnectionHelper* helper, MockAlarmFactory* alarm_factory,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
TestQuicSpdyServerSession** session_ptr) {
MockServerConnection* connection = new MockServerConnection(
connection_id, helper, alarm_factory, dispatcher);
connection->SetQuicPacketWriter(dispatcher->writer(),
false);
auto session = std::make_unique<TestQuicSpdyServerSession>(
config, connection, crypto_config, compressed_certs_cache);
*session_ptr = session.get();
connection->set_visitor(session.get());
ON_CALL(*connection, CloseConnection(_, _, _))
.WillByDefault(WithoutArgs(Invoke(
connection, &MockServerConnection::UnregisterOnConnectionClosed)));
return session;
}
void CreateTimeWaitListManager() {
time_wait_list_manager_ = new MockTimeWaitListManager(
QuicDispatcherPeer::GetWriter(dispatcher_.get()), dispatcher_.get(),
mock_helper_.GetClock(), &mock_alarm_factory_);
QuicDispatcherPeer::SetTimeWaitListManager(dispatcher_.get(),
time_wait_list_manager_);
}
std::string SerializeCHLO() {
CryptoHandshakeMessage client_hello;
client_hello.set_tag(kCHLO);
client_hello.SetStringPiece(kALPN, ExpectedAlpn());
return std::string(client_hello.GetSerialized().AsStringPiece());
}
void ProcessUndecryptableEarlyPacket(
const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id) {
ProcessUndecryptableEarlyPacket(version_, peer_address,
server_connection_id);
}
void ProcessUndecryptableEarlyPacket(
const ParsedQuicVersion& version, const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id) {
std::unique_ptr<QuicEncryptedPacket> encrypted_packet =
GetUndecryptableEarlyPacket(version, server_connection_id);
std::unique_ptr<QuicReceivedPacket> received_packet(ConstructReceivedPacket(
*encrypted_packet, mock_helper_.GetClock()->Now()));
ProcessReceivedPacket(std::move(received_packet), peer_address, version,
server_connection_id);
}
void ProcessFirstFlight(const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id) {
ProcessFirstFlight(version_, peer_address, server_connection_id);
}
void ProcessFirstFlight(const ParsedQuicVersion& version,
const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id) {
ProcessFirstFlight(version, peer_address, server_connection_id,
EmptyQuicConnectionId());
}
void ProcessFirstFlight(const ParsedQuicVersion& version,
const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id,
const QuicConnectionId& client_connection_id) {
ProcessFirstFlight(version, peer_address, server_connection_id,
client_connection_id, TestClientCryptoConfig());
}
void ProcessFirstFlight(
const ParsedQuicVersion& version, const QuicSocketAddress& peer_address,
const QuicConnectionId& server_connection_id,
const QuicConnectionId& client_connection_id,
std::unique_ptr<QuicCryptoClientConfig> client_crypto_config) {
if (expect_generator_is_called_) {
if (version.AllowsVariableLengthConnectionIds()) {
EXPECT_CALL(connection_id_generator_,
MaybeReplaceConnectionId(server_connection_id, version))
.WillOnce(Return(generated_connection_id_));
} else {
EXPECT_CALL(connection_id_generator_,
MaybeReplaceConnectionId(server_connection_id, version))
.WillOnce(Return(std::nullopt));
}
}
std::vector<std::unique_ptr<QuicReceivedPacket>> packets =
GetFirstFlightOfPackets(version, DefaultQuicConfig(),
server_connection_id, client_connection_id,
std::move(client_crypto_config));
for (auto&& packet : packets) {
ProcessReceivedPacket(std::move(packet), peer_address, version,
server_connection_id);
}
}
std::unique_ptr<QuicCryptoClientConfig> TestClientCryptoConfig() {
auto client_crypto_config = std::make_unique<QuicCryptoClientConfig>(
crypto_test_utils::ProofVerifierForTesting());
if (address_token_.has_value()) {
client_crypto_config->LookupOrCreate(TestServerId())
->set_source_address_token(*address_token_);
}
return client_crypto_config;
}
void SetAddressToken(std::string address_token) {
address_token_ = std::move(address_token);
}
std::string ExpectedAlpnForVersion(ParsedQuicVersion version) {
return AlpnForVersion(version);
}
std::string ExpectedAlpn() { return ExpectedAlpnForVersion(version_); }
auto MatchParsedClientHello() {
if (version_.UsesQuicCrypto()) {
return AllOf(
Field(&ParsedClientHello::alpns, ElementsAreArray({ExpectedAlpn()})),
Field(&ParsedClientHello::sni, Eq(TestHostname())),
Field(&ParsedClientHello::supported_groups, IsEmpty()));
}
return AllOf(
Field(&ParsedClientHello::alpns, ElementsAreArray({ExpectedAlpn()})),
Field(&ParsedClientHello::sni, Eq(TestHostname())),
Field(&ParsedClientHello::supported_groups, Not(IsEmpty())));
}
void MarkSession1Deleted() { session1_ = nullptr; }
void VerifyVersionSupported(ParsedQuicVersion version) {
expect_generator_is_called_ = true;
QuicConnectionId connection_id = TestConnectionId(++connection_id_);
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
EXPECT_CALL(*dispatcher_,
CreateQuicSession(connection_id, _, client_address,
Eq(ExpectedAlpnForVersion(version)), _, _, _))
.WillOnce(Return(ByMove(CreateSession(
dispatcher_.get(), config_, connection_id, client_address,
&mock_helper_, &mock_alarm_factory_, &crypto_config_,
QuicDispatcherPeer::GetCache(dispatcher_.get()), &session1_))));
EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()),
ProcessUdpPacket(_, _, _))
.WillOnce(WithArg<2>(
Invoke([this, connection_id](const QuicEncryptedPacket& packet) {
ValidatePacket(connection_id, packet);
})));
ProcessFirstFlight(version, client_address, connection_id);
}
void VerifyVersionNotSupported(ParsedQuicVersion version) {
QuicConnectionId connection_id = TestConnectionId(++connection_id_);
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
EXPECT_CALL(*dispatcher_,
CreateQuicSession(connection_id, _, client_address, _, _, _, _))
.Times(0);
expect_generator_is_called_ = false;
ProcessFirstFlight(version, client_address, connection_id);
}
void TestTlsMultiPacketClientHello(bool add_reordering,
bool long_connection_id);
void TestVersionNegotiationForUnknownVersionInvalidShortInitialConnectionId(
const QuicConnectionId& server_connection_id,
const QuicConnectionId& client_connection_id);
TestAlarmFactory::TestAlarm* GetClearResetAddressesAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
QuicDispatcherPeer::GetClearResetAddressesAlarm(dispatcher_.get()));
}
ParsedQuicVersion version_;
MockQuicConnectionHelper mock_helper_;
MockAlarmFactory mock_alarm_factory_;
QuicConfig config_;
QuicVersionManager version_manager_;
QuicCryptoServerConfig crypto_config_;
QuicSocketAddress server_address_;
bool expect_generator_is_called_ = true;
std::optional<QuicConnectionId> generated_connection_id_;
MockConnectionIdGenerator connection_id_generator_;
std::unique_ptr<NiceMock<TestDispatcher>> dispatcher_;
MockTimeWaitListManager* time_wait_list_manager_;
TestQuicSpdyServerSession* session1_;
TestQuicSpdyServerSession* session2_;
std::map<QuicConnectionId, std::list<std::string>> data_connection_map_;
QuicBufferedPacketStore* store_;
uint64_t connection_id_;
std::optional<std::string> address_token_;
};
class QuicDispatcherTestAllVersions : public QuicDispatcherTestBase {};
class QuicDispatcherTestOneVersion : public QuicDispatcherTestBase {};
INSTANTIATE_TEST_SUITE_P(QuicDispatcherTestsAllVersions,
QuicDispatcherTestAllVersions,
::testing::ValuesIn(CurrentSupportedVersions()),
::testing::PrintToStringParamName());
INSTANTIATE_TEST_SUITE_P(QuicDispatcherTestsOneVersion,
QuicDispatcherTestOneVersion,
::testing::Values(CurrentSupportedVersions().front()),
::testing::PrintToStringParamName());
TEST_P(QuicDispatcherTestAllVersions, TlsClientHelloCreatesSession) {
if (version_.UsesQuicCrypto()) {
return;
}
SetAddressToken("hsdifghdsaifnasdpfjdsk");
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
EXPECT_CALL(
*dispatcher_,
CreateQuicSession(TestConnectionId(1), _, client_address,
Eq(ExpectedAlpn()), _, MatchParsedClientHello(), _))
.WillOnce(Return(ByMove(CreateSession(
dispatcher_.get(), config_, TestConnectionId(1), client_address,
&mock_helper_, &mock_alarm_factory_, &crypto_config_,
QuicDispatcherPeer::GetCache(dispatcher_.get()), &session1_))));
EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()),
ProcessUdpPacket(_, _, _))
.WillOnce(WithArg<2>(Invoke([this](const QuicEncryptedPacket& packet) {
ValidatePacket(TestConnectionId(1), packet);
})));
ProcessFirstFlight(client_address, TestConnectionId(1));
}
TEST_P(QuicDispatcherTestAllVersions,
TlsClientHelloCreatesSessionWithCorrectConnectionIdGenerator) {
if (version_.UsesQuicCrypto()) {
return;
}
SetAddressToken("hsdifghdsaifnasdpfjdsk");
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
MockConnectionIdGenerator mock_connection_id_generator;
EXPECT_CALL(*dispatcher_, ConnectionIdGenerator())
.WillRepeatedly(ReturnRef(mock_connection_id_generator));
ConnectionIdGeneratorInterface& expected_generator =
mock_connection_id_generator;
EXPECT_CALL(mock_connection_id_generator,
MaybeReplaceConnectionId(TestConnectionId(1), version_))
.WillOnce(Return(std::nullopt));
EXPECT_CALL(*dispatcher_,
CreateQuicSession(TestConnectionId(1), _, client_address,
Eq(ExpectedAlpn()), _, MatchParsedClientHello(),
Ref(expected_generator)))
.WillOnce(Return(ByMove(CreateSession(
dispatcher_.get(), config_, TestConnectionId(1), client_address,
&mock_helper_, &mock_alarm_factory_, &crypto_config_,
QuicDispatcherPeer::GetCache(dispatcher_.get()), &session1_))));
expect_generator_is_called_ = false;
ProcessFirstFlight(client_address, TestConnectionId(1));
}
TEST_P(QuicDispatcherTestAllVersions, VariableServerConnectionIdLength) {
QuicConnectionId old_id = TestConnectionId(1);
if (version_.HasIetfQuicFrames()) {
generated_connection_id_ =
QuicConnectionId({0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b});
}
QuicConnectionId new_id =
generated_connection_id_.has_value() ? *generated_connection_id_ : old_id;
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
EXPECT_CALL(*dispatcher_,
CreateQuicSession(new_id, _, client_address, Eq(ExpectedAlpn()),
_, MatchParsedClientHello(), _))
.WillOnce(Return(ByMove(CreateSession(
dispatcher_.get(), config_, new_id, client_address, &mock_helper_,
&mock_alarm_factory_, &crypto_config_,
QuicDispatcherPeer::GetCache(dispatcher_.get()), &session1_))));
EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()),
ProcessUdpPacket(_, _, _))
.WillOnce(WithArg<2>(Invoke([this](const QuicEncryptedPacket& packet) {
ValidatePacket(TestConnectionId(1), packet);
})));
ProcessFirstFlight(client_address, old_id);
EXPECT_CALL(*reinterpret_cast<MockQuicConnection*>(session1_->connection()),
ProcessUdpPacket(_, _, _))
.Times(1);
ProcessPacket(client_address, new_id, false, "foo");
}
void QuicDispatcherTestBase::TestTlsMultiPacketClientHello(
bool add_reordering, bool long_connection_id) {
if (!version_.UsesTls()) {
return;
}
SetAddressToken("857293462398");
QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
QuicConnectionId original_connection_id, new_connection_id;
if (long_connection_id) {
original_connection_id = TestConnectionIdNineBytesLong(1);
new_connection_id = kReturnConnectionId;
EXPECT_CALL(connection_id_generator_,
MaybeReplaceConnectionId(original_connection_id, version_))
.WillOnce(Return(new_connection_id));
} else {
original_connection_id = TestConnectionId();
new_connection_id = original_connection_id;
EXPECT_CALL(connection_id_generator_,
MaybeReplaceConnectionId(original_connection_id, version_))
.WillOnce(Return(std::nullopt));
}
QuicConfig client_config = DefaultQuicConfig();
constexpr auto kCustomParameterId =
static_cast<TransportParameters::TransportParameterId>(0xff33);
std::string kCustomParameterValue(2000, '-');
client_config.custom_transport_parameters_to_send()[kCustomParameterId] =
kCustomParameterValue;
std::vector<std::unique_ptr<QuicReceivedPacket>> packets =
GetFirstFlightOfPackets(version_, client_config, original_connection_id,
EmptyQuicConnectionId(),
TestClientCryptoConfig());
ASSERT_EQ(packets.size(), 2u);
if (add_reordering) {
std::swap(packets[0], packets[1]);
}
ProcessReceivedPacket(std::move(packets[0]), client_address, version_,
original_connection_id);
EXPECT_EQ(dispatcher_->NumSessions(), 0u)
<< "No session should be created before the rest of the CHLO arrives.";
EXPECT_CALL(
*disp |
249 | cpp | google/quiche | deterministic_connection_id_generator | quiche/quic/core/deterministic_connection_id_generator.cc | quiche/quic/core/deterministic_connection_id_generator_test.cc | #ifndef QUICHE_QUIC_CORE_CONNECTION_ID_GENERATOR_DETERMINISTIC_H_
#define QUICHE_QUIC_CORE_CONNECTION_ID_GENERATOR_DETERMINISTIC_H_
#include "quiche/quic/core/connection_id_generator.h"
namespace quic {
class QUICHE_EXPORT DeterministicConnectionIdGenerator
: public ConnectionIdGeneratorInterface {
public:
DeterministicConnectionIdGenerator(uint8_t expected_connection_id_length);
std::optional<QuicConnectionId> GenerateNextConnectionId(
const QuicConnectionId& original) override;
std::optional<QuicConnectionId> MaybeReplaceConnectionId(
const QuicConnectionId& original,
const ParsedQuicVersion& version) override;
uint8_t ConnectionIdLength(uint8_t ) const override {
return expected_connection_id_length_;
}
private:
const uint8_t expected_connection_id_length_;
};
}
#endif
#include "quiche/quic/core/deterministic_connection_id_generator.h"
#include <optional>
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
DeterministicConnectionIdGenerator::DeterministicConnectionIdGenerator(
uint8_t expected_connection_id_length)
: expected_connection_id_length_(expected_connection_id_length) {
if (expected_connection_id_length_ >
kQuicMaxConnectionIdWithLengthPrefixLength) {
QUIC_BUG(quic_bug_465151159_01)
<< "Issuing connection IDs longer than allowed in RFC9000";
}
}
std::optional<QuicConnectionId>
DeterministicConnectionIdGenerator::GenerateNextConnectionId(
const QuicConnectionId& original) {
if (expected_connection_id_length_ == 0) {
return EmptyQuicConnectionId();
}
const uint64_t connection_id_hash64 = QuicUtils::FNV1a_64_Hash(
absl::string_view(original.data(), original.length()));
if (expected_connection_id_length_ <= sizeof(uint64_t)) {
return QuicConnectionId(
reinterpret_cast<const char*>(&connection_id_hash64),
expected_connection_id_length_);
}
char new_connection_id_data[255] = {};
const absl::uint128 connection_id_hash128 = QuicUtils::FNV1a_128_Hash(
absl::string_view(original.data(), original.length()));
static_assert(sizeof(connection_id_hash64) + sizeof(connection_id_hash128) <=
sizeof(new_connection_id_data),
"bad size");
memcpy(new_connection_id_data, &connection_id_hash64,
sizeof(connection_id_hash64));
memcpy(new_connection_id_data + sizeof(connection_id_hash64),
&connection_id_hash128, sizeof(connection_id_hash128));
return QuicConnectionId(new_connection_id_data,
expected_connection_id_length_);
}
std::optional<QuicConnectionId>
DeterministicConnectionIdGenerator::MaybeReplaceConnectionId(
const QuicConnectionId& original, const ParsedQuicVersion& version) {
if (original.length() == expected_connection_id_length_) {
return std::optional<QuicConnectionId>();
}
QUICHE_DCHECK(version.AllowsVariableLengthConnectionIds());
std::optional<QuicConnectionId> new_connection_id =
GenerateNextConnectionId(original);
if (!new_connection_id.has_value()) {
QUIC_BUG(unset_next_connection_id);
return std::nullopt;
}
QUICHE_DCHECK_EQ(
*new_connection_id,
static_cast<QuicConnectionId>(*GenerateNextConnectionId(original)));
QUICHE_DCHECK_EQ(expected_connection_id_length_, new_connection_id->length());
QUIC_DLOG(INFO) << "Replacing incoming connection ID " << original << " with "
<< *new_connection_id;
return new_connection_id;
}
} | #include "quiche/quic/core/deterministic_connection_id_generator.h"
#include <optional>
#include <ostream>
#include <vector>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
struct TestParams {
TestParams(int connection_id_length)
: connection_id_length_(connection_id_length) {}
TestParams() : TestParams(kQuicDefaultConnectionIdLength) {}
friend std::ostream& operator<<(std::ostream& os, const TestParams& p) {
os << "{ connection ID length: " << p.connection_id_length_ << " }";
return os;
}
int connection_id_length_;
};
std::vector<struct TestParams> GetTestParams() {
std::vector<struct TestParams> params;
std::vector<int> connection_id_lengths{7, 8, 9, 16, 20};
for (int connection_id_length : connection_id_lengths) {
params.push_back(TestParams(connection_id_length));
}
return params;
}
class DeterministicConnectionIdGeneratorTest
: public QuicTestWithParam<TestParams> {
public:
DeterministicConnectionIdGeneratorTest()
: connection_id_length_(GetParam().connection_id_length_),
generator_(DeterministicConnectionIdGenerator(connection_id_length_)),
version_(ParsedQuicVersion::RFCv1()) {}
protected:
int connection_id_length_;
DeterministicConnectionIdGenerator generator_;
ParsedQuicVersion version_;
};
INSTANTIATE_TEST_SUITE_P(DeterministicConnectionIdGeneratorTests,
DeterministicConnectionIdGeneratorTest,
::testing::ValuesIn(GetTestParams()));
TEST_P(DeterministicConnectionIdGeneratorTest,
NextConnectionIdIsDeterministic) {
QuicConnectionId connection_id64a = TestConnectionId(33);
QuicConnectionId connection_id64b = TestConnectionId(33);
EXPECT_EQ(connection_id64a, connection_id64b);
EXPECT_EQ(*generator_.GenerateNextConnectionId(connection_id64a),
*generator_.GenerateNextConnectionId(connection_id64b));
QuicConnectionId connection_id72a = TestConnectionIdNineBytesLong(42);
QuicConnectionId connection_id72b = TestConnectionIdNineBytesLong(42);
EXPECT_EQ(connection_id72a, connection_id72b);
EXPECT_EQ(*generator_.GenerateNextConnectionId(connection_id72a),
*generator_.GenerateNextConnectionId(connection_id72b));
}
TEST_P(DeterministicConnectionIdGeneratorTest,
NextConnectionIdLengthIsCorrect) {
const char connection_id_bytes[255] = {};
for (uint8_t i = 0; i < sizeof(connection_id_bytes) - 1; ++i) {
QuicConnectionId connection_id(connection_id_bytes, i);
std::optional<QuicConnectionId> replacement_connection_id =
generator_.GenerateNextConnectionId(connection_id);
ASSERT_TRUE(replacement_connection_id.has_value());
EXPECT_EQ(connection_id_length_, replacement_connection_id->length());
}
}
TEST_P(DeterministicConnectionIdGeneratorTest, NextConnectionIdHasEntropy) {
for (uint64_t i = 0; i < 256; ++i) {
QuicConnectionId connection_id_i = TestConnectionId(i);
std::optional<QuicConnectionId> new_i =
generator_.GenerateNextConnectionId(connection_id_i);
ASSERT_TRUE(new_i.has_value());
EXPECT_NE(connection_id_i, *new_i);
for (uint64_t j = i + 1; j <= 256; ++j) {
QuicConnectionId connection_id_j = TestConnectionId(j);
EXPECT_NE(connection_id_i, connection_id_j);
std::optional<QuicConnectionId> new_j =
generator_.GenerateNextConnectionId(connection_id_j);
ASSERT_TRUE(new_j.has_value());
EXPECT_NE(*new_i, *new_j);
}
}
}
TEST_P(DeterministicConnectionIdGeneratorTest,
OnlyReplaceConnectionIdWithWrongLength) {
const char connection_id_input[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14};
for (int i = 0; i < kQuicMaxConnectionIdWithLengthPrefixLength; i++) {
QuicConnectionId input = QuicConnectionId(connection_id_input, i);
std::optional<QuicConnectionId> output =
generator_.MaybeReplaceConnectionId(input, version_);
if (i == connection_id_length_) {
EXPECT_FALSE(output.has_value());
} else {
ASSERT_TRUE(output.has_value());
EXPECT_EQ(*output, generator_.GenerateNextConnectionId(input));
}
}
}
TEST_P(DeterministicConnectionIdGeneratorTest, ReturnLength) {
EXPECT_EQ(generator_.ConnectionIdLength(0x01), connection_id_length_);
}
}
}
} |
250 | cpp | google/quiche | quic_time_wait_list_manager | quiche/quic/core/quic_time_wait_list_manager.cc | quiche/quic/core/quic_time_wait_list_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_TIME_WAIT_LIST_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_TIME_WAIT_LIST_MANAGER_H_
#include <cstddef>
#include <memory>
#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
namespace test {
class QuicDispatcherPeer;
class QuicTimeWaitListManagerPeer;
}
struct QUICHE_EXPORT TimeWaitConnectionInfo {
TimeWaitConnectionInfo(
bool ietf_quic,
std::vector<std::unique_ptr<QuicEncryptedPacket>>* termination_packets,
std::vector<QuicConnectionId> active_connection_ids);
TimeWaitConnectionInfo(
bool ietf_quic,
std::vector<std::unique_ptr<QuicEncryptedPacket>>* termination_packets,
std::vector<QuicConnectionId> active_connection_ids,
QuicTime::Delta srtt);
TimeWaitConnectionInfo(const TimeWaitConnectionInfo& other) = delete;
TimeWaitConnectionInfo(TimeWaitConnectionInfo&& other) = default;
~TimeWaitConnectionInfo() = default;
bool ietf_quic;
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
std::vector<QuicConnectionId> active_connection_ids;
QuicTime::Delta srtt;
};
class QUICHE_EXPORT QuicTimeWaitListManager
: public QuicBlockedWriterInterface {
public:
enum TimeWaitAction : uint8_t {
SEND_TERMINATION_PACKETS,
SEND_CONNECTION_CLOSE_PACKETS,
SEND_STATELESS_RESET,
DO_NOTHING,
};
class QUICHE_EXPORT Visitor : public QuicSession::Visitor {
public:
virtual void OnConnectionAddedToTimeWaitList(
QuicConnectionId connection_id) = 0;
void OnPathDegrading() override {}
};
QuicTimeWaitListManager(QuicPacketWriter* writer, Visitor* visitor,
const QuicClock* clock,
QuicAlarmFactory* alarm_factory);
QuicTimeWaitListManager(const QuicTimeWaitListManager&) = delete;
QuicTimeWaitListManager& operator=(const QuicTimeWaitListManager&) = delete;
~QuicTimeWaitListManager() override;
virtual void AddConnectionIdToTimeWait(TimeWaitAction action,
TimeWaitConnectionInfo info);
bool IsConnectionIdInTimeWait(QuicConnectionId connection_id) const;
virtual void ProcessPacket(
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, QuicConnectionId connection_id,
PacketHeaderFormat header_format, size_t received_packet_length,
std::unique_ptr<QuicPerPacketContext> packet_context);
void OnBlockedWriterCanWrite() override;
bool IsWriterBlocked() const override {
return writer_ != nullptr && writer_->IsWriteBlocked();
}
void CleanUpOldConnectionIds();
void TrimTimeWaitListIfNeeded();
size_t num_connections() const { return connection_id_map_.size(); }
virtual void SendVersionNegotiationPacket(
QuicConnectionId server_connection_id,
QuicConnectionId client_connection_id, bool ietf_quic,
bool use_length_prefix, const ParsedQuicVersionVector& supported_versions,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
std::unique_ptr<QuicPerPacketContext> packet_context);
virtual void SendPublicReset(
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, QuicConnectionId connection_id,
bool ietf_quic, size_t received_packet_length,
std::unique_ptr<QuicPerPacketContext> packet_context);
virtual void SendPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicEncryptedPacket& packet);
QuicPacketWriter* writer() { return writer_; }
protected:
virtual std::unique_ptr<QuicEncryptedPacket> BuildPublicReset(
const QuicPublicResetPacket& packet);
virtual void GetEndpointId(std::string* ) {}
virtual StatelessResetToken GetStatelessResetToken(
QuicConnectionId connection_id) const;
class QUICHE_EXPORT QueuedPacket {
public:
QueuedPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
std::unique_ptr<QuicEncryptedPacket> packet)
: self_address_(self_address),
peer_address_(peer_address),
packet_(std::move(packet)) {}
QueuedPacket(const QueuedPacket&) = delete;
QueuedPacket& operator=(const QueuedPacket&) = delete;
const QuicSocketAddress& self_address() const { return self_address_; }
const QuicSocketAddress& peer_address() const { return peer_address_; }
QuicEncryptedPacket* packet() { return packet_.get(); }
private:
const QuicSocketAddress self_address_;
const QuicSocketAddress peer_address_;
std::unique_ptr<QuicEncryptedPacket> packet_;
};
virtual bool SendOrQueuePacket(std::unique_ptr<QueuedPacket> packet,
const QuicPerPacketContext* packet_context);
const quiche::QuicheCircularDeque<std::unique_ptr<QueuedPacket>>&
pending_packets_queue() const {
return pending_packets_queue_;
}
private:
friend class test::QuicDispatcherPeer;
friend class test::QuicTimeWaitListManagerPeer;
bool ShouldSendResponse(int received_packet_count);
bool WriteToWire(QueuedPacket* packet);
void SetConnectionIdCleanUpAlarm();
bool MaybeExpireOldestConnection(QuicTime expiration_time);
virtual void OnPacketReceivedForKnownConnection(
int , QuicTime::Delta ,
QuicTime::Delta ) const {}
std::unique_ptr<QuicEncryptedPacket> BuildIetfStatelessResetPacket(
QuicConnectionId connection_id, size_t received_packet_length);
struct QUICHE_EXPORT ConnectionIdData {
ConnectionIdData(int num_packets, QuicTime time_added,
TimeWaitAction action, TimeWaitConnectionInfo info);
ConnectionIdData(const ConnectionIdData& other) = delete;
ConnectionIdData(ConnectionIdData&& other);
~ConnectionIdData();
int num_packets;
QuicTime time_added;
TimeWaitAction action;
TimeWaitConnectionInfo info;
};
using ConnectionIdMap =
quiche::QuicheLinkedHashMap<QuicConnectionId, ConnectionIdData,
QuicConnectionIdHash>;
ConnectionIdMap connection_id_map_;
absl::flat_hash_map<QuicConnectionId, QuicConnectionId, QuicConnectionIdHash>
indirect_connection_id_map_;
ConnectionIdMap::iterator FindConnectionIdDataInMap(
const QuicConnectionId& connection_id);
void AddConnectionIdDataToMap(const QuicConnectionId& canonical_connection_id,
int num_packets, TimeWaitAction action,
TimeWaitConnectionInfo info);
void RemoveConnectionDataFromMap(ConnectionIdMap::iterator it);
quiche::QuicheCircularDeque<std::unique_ptr<QueuedPacket>>
pending_packets_queue_;
const QuicTime::Delta time_wait_period_;
std::unique_ptr<QuicAlarm> connection_id_clean_up_alarm_;
const QuicClock* clock_;
QuicPacketWriter* writer_;
Visitor* visitor_;
};
}
#endif
#include "quiche/quic/core/quic_time_wait_list_manager.h"
#include <errno.h>
#include <memory>
#include <ostream>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
class ConnectionIdCleanUpAlarm : public QuicAlarm::DelegateWithoutContext {
public:
explicit ConnectionIdCleanUpAlarm(
QuicTimeWaitListManager* time_wait_list_manager)
: time_wait_list_manager_(time_wait_list_manager) {}
ConnectionIdCleanUpAlarm(const ConnectionIdCleanUpAlarm&) = delete;
ConnectionIdCleanUpAlarm& operator=(const ConnectionIdCleanUpAlarm&) = delete;
void OnAlarm() override {
time_wait_list_manager_->CleanUpOldConnectionIds();
}
private:
QuicTimeWaitListManager* time_wait_list_manager_;
};
TimeWaitConnectionInfo::TimeWaitConnectionInfo(
bool ietf_quic,
std::vector<std::unique_ptr<QuicEncryptedPacket>>* termination_packets,
std::vector<QuicConnectionId> active_connection_ids)
: TimeWaitConnectionInfo(ietf_quic, termination_packets,
std::move(active_connection_ids),
QuicTime::Delta::Zero()) {}
TimeWaitConnectionInfo::TimeWaitConnectionInfo(
bool ietf_quic,
std::vector<std::unique_ptr<QuicEncryptedPacket>>* termination_packets,
std::vector<QuicConnectionId> active_connection_ids, QuicTime::Delta srtt)
: ietf_quic(ietf_quic),
active_connection_ids(std::move(active_connection_ids)),
srtt(srtt) {
if (termination_packets != nullptr) {
this->termination_packets.swap(*termination_packets);
}
}
QuicTimeWaitListManager::QuicTimeWaitListManager(
QuicPacketWriter* writer, Visitor* visitor, const QuicClock* clock,
QuicAlarmFactory* alarm_factory)
: time_wait_period_(QuicTime::Delta::FromSeconds(
GetQuicFlag(quic_time_wait_list_seconds))),
connection_id_clean_up_alarm_(
alarm_factory->CreateAlarm(new ConnectionIdCleanUpAlarm(this))),
clock_(clock),
writer_(writer),
visitor_(visitor) {
SetConnectionIdCleanUpAlarm();
}
QuicTimeWaitListManager::~QuicTimeWaitListManager() {
connection_id_clean_up_alarm_->Cancel();
}
QuicTimeWaitListManager::ConnectionIdMap::iterator
QuicTimeWaitListManager::FindConnectionIdDataInMap(
const QuicConnectionId& connection_id) {
auto it = indirect_connection_id_map_.find(connection_id);
if (it == indirect_connection_id_map_.end()) {
return connection_id_map_.end();
}
return connection_id_map_.find(it->second);
}
void QuicTimeWaitListManager::AddConnectionIdDataToMap(
const QuicConnectionId& canonical_connection_id, int num_packets,
TimeWaitAction action, TimeWaitConnectionInfo info) {
for (const auto& cid : info.active_connection_ids) {
indirect_connection_id_map_[cid] = canonical_connection_id;
}
ConnectionIdData data(num_packets, clock_->ApproximateNow(), action,
std::move(info));
connection_id_map_.emplace(
std::make_pair(canonical_connection_id, std::move(data)));
}
void QuicTimeWaitListManager::RemoveConnectionDataFromMap(
ConnectionIdMap::iterator it) {
for (const auto& cid : it->second.info.active_connection_ids) {
indirect_connection_id_map_.erase(cid);
}
connection_id_map_.erase(it);
}
void QuicTimeWaitListManager::AddConnectionIdToTimeWait(
TimeWaitAction action, TimeWaitConnectionInfo info) {
QUICHE_DCHECK(!info.active_connection_ids.empty());
const QuicConnectionId& canonical_connection_id =
info.active_connection_ids.front();
QUICHE_DCHECK(action != SEND_TERMINATION_PACKETS ||
!info.termination_packets.empty());
QUICHE_DCHECK(action != DO_NOTHING || info.ietf_quic);
int num_packets = 0;
auto it = FindConnectionIdDataInMap(canonical_connection_id);
const bool new_connection_id = it == connection_id_map_.end();
if (!new_connection_id) {
num_packets = it->second.num_packets;
RemoveConnectionDataFromMap(it);
}
TrimTimeWaitListIfNeeded();
int64_t max_connections = GetQuicFlag(quic_time_wait_list_max_connections);
QUICHE_DCHECK(connection_id_map_.empty() ||
num_connections() < static_cast<size_t>(max_connections));
if (new_connection_id) {
for (const auto& cid : info.active_connection_ids) {
visitor_->OnConnectionAddedToTimeWaitList(cid);
}
}
AddConnectionIdDataToMap(canonical_connection_id, num_packets, action,
std::move(info));
}
bool QuicTimeWaitListManager::IsConnectionIdInTimeWait(
QuicConnectionId connection_id) const {
return indirect_connection_id_map_.contains(connection_id);
}
void QuicTimeWaitListManager::OnBlockedWriterCanWrite() {
writer_->SetWritable();
while (!pending_packets_queue_.empty()) {
QueuedPacket* queued_packet = pending_packets_queue_.front().get();
if (!WriteToWire(queued_packet)) {
return;
}
pending_packets_queue_.pop_front();
}
}
void QuicTimeWaitListManager::ProcessPacket(
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, QuicConnectionId connection_id,
PacketHeaderFormat header_format, size_t received_packet_length,
std::unique_ptr<QuicPerPacketContext> packet_context) {
QUICHE_DCHECK(IsConnectionIdInTimeWait(connection_id));
auto it = FindConnectionIdDataInMap(connection_id);
QUICHE_DCHECK(it != connection_id_map_.end());
ConnectionIdData* connection_data = &it->second;
++(connection_data->num_packets);
const QuicTime now = clock_->ApproximateNow();
QuicTime::Delta delta = QuicTime::Delta::Zero();
if (now > connection_data->time_added) {
delta = now - connection_data->time_added;
}
OnPacketReceivedForKnownConnection(connection_data->num_packets, delta,
connection_data->info.srtt);
if (!ShouldSendResponse(connection_data->num_packets)) {
QUIC_DLOG(INFO) << "Processing " << connection_id << " in time wait state: "
<< "throttled";
return;
}
QUIC_DLOG(INFO) << "Processing " << connection_id << " in time wait state: "
<< "header format=" << header_format
<< " ietf=" << connection_data->info.ietf_quic
<< ", action=" << connection_data->action
<< ", number termination packets="
<< connection_data->info.termination_packets.size();
switch (connection_data->action) {
case SEND_TERMINATION_PACKETS:
if (connection_data->info.termination_packets.empty()) {
QUIC_BUG(quic_bug_10608_1) << "There are no termination packets.";
return;
}
switch (header_format) {
case IETF_QUIC_LONG_HEADER_PACKET:
if (!connection_data->info.ietf_quic) {
QUIC_CODE_COUNT(quic_received_long_header_packet_for_gquic);
}
break;
case IETF_QUIC_SHORT_HEADER_PACKET:
if (!connection_data->info.ietf_quic) {
QUIC_CODE_COUNT(quic_received_short_header_packet_for_gquic);
}
SendPublicReset(self_address, peer_address, connection_id,
connection_data->info.ietf_quic,
received_packet_length, std::move(packet_context));
return;
case GOOGLE_QUIC_PACKET:
if (connection_data->info.ietf_quic) {
QUIC_CODE_COUNT(quic_received_gquic_packet_for_ietf_quic);
}
break;
}
for (const auto& packet : connection_data->info.termination_packets) {
SendOrQueuePacket(std::make_unique<QueuedPacket>(
self_address, peer_address, packet->Clone()),
packet_context.get());
}
return;
case SEND_CONNECTION_CLOSE_PACKETS:
if (connection_data->info.termination_packets.empty()) {
QUIC_BUG(quic_bug_10608_2) << "There are no termination packets.";
return;
}
for (const auto& packet : connection_data->info.termination_packets) {
SendOrQueuePacket(std::make_unique<QueuedPacket>(
self_address, peer_address, packet->Clone()),
packet_context.get());
}
return;
case SEND_STATELESS_RESET:
if (header_format == IETF_QUIC_LONG_HEADER_PACKET) {
QUIC_CODE_COUNT(quic_stateless_reset_long_header_packet);
}
SendPublicReset(self_address, peer_address, connection_id,
connection_data->info.ietf_quic, received_packet_length,
std::move(packet_context));
return;
case DO_NOTHING:
QUIC_CODE_COUNT(quic_time_wait_list_do_nothing);
QUICHE_DCHECK(connection_data->info.ietf_quic);
}
}
void QuicTimeWaitListManager::SendVersionNegotiationPacket(
QuicConnectionId server_connection_id,
QuicConnectionId client_connection_id, bool ietf_quic,
bool use_length_prefix, const ParsedQuicVersionVector& supported_versions,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
std::unique_ptr<QuicPerPacketContext> packet_context) {
std::unique_ptr<QuicEncryptedPacket> version_packet =
QuicFramer::BuildVersionNegotiationPacket(
server_connection_id, client_connection_id, ietf_quic,
use_length_prefix, supported_versions);
QUIC_DVLOG(2) << "Dispatcher sending version negotiation packet {"
<< ParsedQuicVersionVectorToString(supported_versions) << "}, "
<< (ietf_quic ? "" : "!") << "ietf_quic, "
<< (use_length_prefix ? "" : "!")
<< "use_length_prefix:" << std::endl
<< quiche::QuicheTextUtils::HexDump(absl::string_view(
version_packet->data(), version_packet->length()));
SendOrQueuePacket(std::make_unique<QueuedPacket>(self_address, peer_address,
std::move(version_packet)),
packet_context.get());
}
bool QuicTimeWaitListManager::ShouldSendResponse(int received_packet_count) {
return (received_packet_count & (received_packet_count - 1)) == 0;
}
void QuicTimeWaitListManager::SendPublicReset(
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address, QuicConnectionId connection_id,
bool ietf_quic, size_t received_packet_length,
std::unique_ptr<QuicPerPacketContext> packet_context) {
if (ietf_quic) {
std::unique_ptr<QuicEncryptedPacket> ietf_reset_packet =
BuildIetfStatelessResetPacket(connection_id, received_packet_length);
if (ietf_reset_packet == nullptr) {
return;
}
QUIC_DVLOG(2) << "Dispatcher sending IETF reset packet for "
<< connection_id << std::endl
<< quiche::QuicheTextUtils::HexDump(
absl::string_view(ietf_reset_packet->data(),
ietf_reset_packet->length()));
SendOrQueuePacket(
std::make_unique<QueuedPacket>(self_address, peer_address,
std::move(ietf_reset_packet)),
packet_context.get());
return;
}
QuicPublicResetPacket packet;
packet.connection_id = connection_id;
packet.nonce_proof = 1010101;
packet.client_address = peer_address;
GetEndpointId(&packet.endpoint_id);
std::unique_ptr<QuicEncryptedPacket> reset_packet = BuildPublicReset(packet);
QUIC_DVLOG(2) << "Dispatcher sending reset packet for " << connection_id
<< std::endl
<< quiche::QuicheTextUtils::HexDump(absl::string_view(
reset_packet->data(), reset_packet->length()));
SendOrQueuePacket(std::make_unique<QueuedPacket>(self_address, peer_address,
std::move(reset_packet)),
packet_context.get());
}
void QuicTimeWaitListManager::SendPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicEncryptedPacket& packet) {
SendOrQueuePacket(std::make_unique<QueuedPacket>(self_address, peer_address,
packet.Clone()),
nullptr);
}
std::unique_ptr<QuicEncryptedPacket> QuicTimeWaitListManager::BuildPublicReset(
const QuicPublicResetPacket& packet) {
return QuicFramer::BuildPublicResetPacket(packet);
}
std::unique_ptr<QuicEncryptedPacket>
QuicTimeWaitListManager::BuildIetfStatelessResetPacket(
QuicConnectionId connection_id, size_t received_packet_length) {
return QuicFramer::BuildIetfStatelessResetPacket(
connection_id, received_packet_length,
GetStatelessResetToken(connection_id));
}
bool QuicTimeWaitListManager::SendOrQueuePacket(
std::unique_ptr<QueuedPacket> packet,
const QuicPerPacketContext* ) {
if (packet == nullptr) {
QUIC_LOG(ERROR) << "Tried to send or queue a null packet";
return true;
}
if (pending_packets_queue_.size() >=
GetQuicFlag(quic_time_wait_list_max_pending_packets)) {
QUIC_CODE_COUNT(quic_too_many_pending_packets_in_time_wait);
return true;
}
if (WriteToWire(packet.get())) {
return true;
}
pending_packets_queue_.push_back(std::move(packet));
return false;
}
bool QuicTimeWaitListManager::WriteToWire(QueuedPacket* queued_packet) {
if (writer_->IsWriteBlocked()) {
visitor_->OnWriteBlocked(this);
return false;
}
WriteResult result = writer_->WritePacket(
queued_packet->packet()->data(), queued_packet->packet()->length(),
queued_packet->self_address().host(), queued_packet->peer_address(),
nullptr, QuicPacketWriterParams());
if (writer_->IsBatchMode() && result.status == WRITE_STATUS_OK &&
result.bytes_written == 0) {
result = writer_->Flush();
}
if (IsWriteBlockedStatus(result.status)) {
QUICHE_DCHECK(writer_->IsWriteBlocked());
visitor_->OnWriteBlocked(this);
return result.status == WRITE_STATUS_BLOCKED_DATA_BUFFERED;
} else if (IsWriteError(result.status)) {
QUIC_LOG_FIRST_N(WARNING, 1)
<< "Received unknown error while sending termination packet to "
<< queued_packet->peer_address().ToString() << ": "
<< strerror(result.error_code);
}
return true;
}
void QuicTimeWaitListManager::SetConnectionIdCleanUpAlarm() {
QuicTime::Delta next_alarm_interval = QuicTime::Delta::Zero();
if (!connection_id_map_.empty()) {
QuicTime oldest_connection_id =
connection_id_map_.begin()->second.time_added;
QuicTime now = clock_->ApproximateNow();
if (now - oldest_connection_id < time_wait_period_) {
next_alarm_interval = oldest_connection_id + time_wait_period_ - now;
} else {
QUIC_LOG(ERROR)
<< "ConnectionId lingered for longer than time_wait_period_";
}
} else {
next_alarm_interval = time_wait_period_;
}
connection_id_clean_up_alarm_->Update(
clock_->ApproximateNow() + next_alarm_interval, QuicTime::Delta::Zero());
}
bool QuicTimeWaitListManager::MaybeExpireOldestConnection(
QuicTime expiration_time) {
if (connection_id_map_.empty()) {
return false;
}
auto it = connection_id_map_.begin();
QuicTime oldest_connection_id_time = it->second.time_added;
if (oldest_connection_id_time > expiration_time) {
return false;
}
QUIC_DLOG(INFO) << "Connection " << it->first
<< " expired from time wait list";
RemoveConnectionDataFromMap(it);
if (expiration_time == QuicTime::Infinite()) {
QUIC_CODE_COUNT(quic_time_wait_list_trim_full);
} else {
QUIC_CODE_COUNT(quic_time_wait_list_expire_connections);
}
return true;
}
void QuicTimeWaitListManager::CleanUpOldConnectionIds() {
QuicTime now = clock_->ApproximateNow();
QuicTime expiration = now - time_wait_period_;
while (MaybeExpireOldestConnection(expiration)) { | #include "quiche/quic/core/quic_time_wait_list_manager.h"
#include <cerrno>
#include <memory>
#include <ostream>
#include <tuple>
#include <utility>
#include <vector>
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_quic_session_visitor.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/quic_time_wait_list_manager_peer.h"
using testing::_;
using testing::Args;
using testing::Assign;
using testing::DoAll;
using testing::Matcher;
using testing::NiceMock;
using testing::Return;
using testing::ReturnPointee;
using testing::StrictMock;
using testing::Truly;
namespace quic {
namespace test {
namespace {
const size_t kTestPacketSize = 100;
class FramerVisitorCapturingPublicReset : public NoOpFramerVisitor {
public:
FramerVisitorCapturingPublicReset(QuicConnectionId connection_id)
: connection_id_(connection_id) {}
~FramerVisitorCapturingPublicReset() override = default;
bool IsValidStatelessResetToken(
const StatelessResetToken& token) const override {
return token == QuicUtils::GenerateStatelessResetToken(connection_id_);
}
void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& packet) override {
stateless_reset_packet_ = packet;
}
const QuicIetfStatelessResetPacket stateless_reset_packet() {
return stateless_reset_packet_;
}
private:
QuicIetfStatelessResetPacket stateless_reset_packet_;
QuicConnectionId connection_id_;
};
class MockAlarmFactory;
class MockAlarm : public QuicAlarm {
public:
explicit MockAlarm(QuicArenaScopedPtr<Delegate> delegate, int alarm_index,
MockAlarmFactory* factory)
: QuicAlarm(std::move(delegate)),
alarm_index_(alarm_index),
factory_(factory) {}
virtual ~MockAlarm() {}
void SetImpl() override;
void CancelImpl() override;
private:
int alarm_index_;
MockAlarmFactory* factory_;
};
class MockAlarmFactory : public QuicAlarmFactory {
public:
~MockAlarmFactory() override {}
QuicAlarm* CreateAlarm(QuicAlarm::Delegate* delegate) override {
return new MockAlarm(QuicArenaScopedPtr<QuicAlarm::Delegate>(delegate),
alarm_index_++, this);
}
QuicArenaScopedPtr<QuicAlarm> CreateAlarm(
QuicArenaScopedPtr<QuicAlarm::Delegate> delegate,
QuicConnectionArena* arena) override {
if (arena != nullptr) {
return arena->New<MockAlarm>(std::move(delegate), alarm_index_++, this);
}
return QuicArenaScopedPtr<MockAlarm>(
new MockAlarm(std::move(delegate), alarm_index_++, this));
}
MOCK_METHOD(void, OnAlarmSet, (int, QuicTime), ());
MOCK_METHOD(void, OnAlarmCancelled, (int), ());
private:
int alarm_index_ = 0;
};
void MockAlarm::SetImpl() { factory_->OnAlarmSet(alarm_index_, deadline()); }
void MockAlarm::CancelImpl() { factory_->OnAlarmCancelled(alarm_index_); }
class QuicTimeWaitListManagerTest : public QuicTest {
protected:
QuicTimeWaitListManagerTest()
: time_wait_list_manager_(&writer_, &visitor_, &clock_, &alarm_factory_),
connection_id_(TestConnectionId(45)),
peer_address_(TestPeerIPAddress(), kTestPort),
writer_is_blocked_(false) {}
~QuicTimeWaitListManagerTest() override = default;
void SetUp() override {
EXPECT_CALL(writer_, IsWriteBlocked())
.WillRepeatedly(ReturnPointee(&writer_is_blocked_));
}
void AddConnectionId(QuicConnectionId connection_id,
QuicTimeWaitListManager::TimeWaitAction action) {
AddConnectionId(connection_id, action, nullptr);
}
void AddStatelessConnectionId(QuicConnectionId connection_id) {
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(std::unique_ptr<QuicEncryptedPacket>(
new QuicEncryptedPacket(nullptr, 0, false)));
time_wait_list_manager_.AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_TERMINATION_PACKETS,
TimeWaitConnectionInfo(false, &termination_packets, {connection_id}));
}
void AddConnectionId(
QuicConnectionId connection_id,
QuicTimeWaitListManager::TimeWaitAction action,
std::vector<std::unique_ptr<QuicEncryptedPacket>>* packets) {
time_wait_list_manager_.AddConnectionIdToTimeWait(
action,
TimeWaitConnectionInfo(true, packets, {connection_id}));
}
bool IsConnectionIdInTimeWait(QuicConnectionId connection_id) {
return time_wait_list_manager_.IsConnectionIdInTimeWait(connection_id);
}
void ProcessPacket(QuicConnectionId connection_id) {
time_wait_list_manager_.ProcessPacket(
self_address_, peer_address_, connection_id, GOOGLE_QUIC_PACKET,
kTestPacketSize, std::make_unique<QuicPerPacketContext>());
}
QuicEncryptedPacket* ConstructEncryptedPacket(
QuicConnectionId destination_connection_id,
QuicConnectionId source_connection_id, uint64_t packet_number) {
return quic::test::ConstructEncryptedPacket(destination_connection_id,
source_connection_id, false,
false, packet_number, "data");
}
MockClock clock_;
MockAlarmFactory alarm_factory_;
NiceMock<MockPacketWriter> writer_;
StrictMock<MockQuicSessionVisitor> visitor_;
QuicTimeWaitListManager time_wait_list_manager_;
QuicConnectionId connection_id_;
QuicSocketAddress self_address_;
QuicSocketAddress peer_address_;
bool writer_is_blocked_;
};
bool ValidPublicResetPacketPredicate(
QuicConnectionId expected_connection_id,
const std::tuple<const char*, int>& packet_buffer) {
FramerVisitorCapturingPublicReset visitor(expected_connection_id);
QuicFramer framer(AllSupportedVersions(), QuicTime::Zero(),
Perspective::IS_CLIENT, kQuicDefaultConnectionIdLength);
framer.set_visitor(&visitor);
QuicEncryptedPacket encrypted(std::get<0>(packet_buffer),
std::get<1>(packet_buffer));
framer.ProcessPacket(encrypted);
QuicIetfStatelessResetPacket stateless_reset =
visitor.stateless_reset_packet();
StatelessResetToken expected_stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(expected_connection_id);
return stateless_reset.stateless_reset_token ==
expected_stateless_reset_token;
}
Matcher<const std::tuple<const char*, int>> PublicResetPacketEq(
QuicConnectionId connection_id) {
return Truly(
[connection_id](const std::tuple<const char*, int> packet_buffer) {
return ValidPublicResetPacketPredicate(connection_id, packet_buffer);
});
}
TEST_F(QuicTimeWaitListManagerTest, CheckConnectionIdInTimeWait) {
EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_));
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddConnectionId(connection_id_, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_));
}
TEST_F(QuicTimeWaitListManagerTest, CheckStatelessConnectionIdInTimeWait) {
EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_));
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddStatelessConnectionId(connection_id_);
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_));
}
TEST_F(QuicTimeWaitListManagerTest, SendVersionNegotiationPacket) {
std::unique_ptr<QuicEncryptedPacket> packet(
QuicFramer::BuildVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), false,
false, AllSupportedVersions()));
EXPECT_CALL(writer_, WritePacket(_, packet->length(), self_address_.host(),
peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
time_wait_list_manager_.SendVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), false,
false, AllSupportedVersions(), self_address_,
peer_address_, std::make_unique<QuicPerPacketContext>());
EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest,
SendIetfVersionNegotiationPacketWithoutLengthPrefix) {
std::unique_ptr<QuicEncryptedPacket> packet(
QuicFramer::BuildVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), true,
false, AllSupportedVersions()));
EXPECT_CALL(writer_, WritePacket(_, packet->length(), self_address_.host(),
peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
time_wait_list_manager_.SendVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), true,
false, AllSupportedVersions(), self_address_,
peer_address_, std::make_unique<QuicPerPacketContext>());
EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest, SendIetfVersionNegotiationPacket) {
std::unique_ptr<QuicEncryptedPacket> packet(
QuicFramer::BuildVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), true,
true, AllSupportedVersions()));
EXPECT_CALL(writer_, WritePacket(_, packet->length(), self_address_.host(),
peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
time_wait_list_manager_.SendVersionNegotiationPacket(
connection_id_, EmptyQuicConnectionId(), true,
true, AllSupportedVersions(), self_address_,
peer_address_, std::make_unique<QuicPerPacketContext>());
EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest,
SendIetfVersionNegotiationPacketWithClientConnectionId) {
std::unique_ptr<QuicEncryptedPacket> packet(
QuicFramer::BuildVersionNegotiationPacket(
connection_id_, TestConnectionId(0x33), true,
true, AllSupportedVersions()));
EXPECT_CALL(writer_, WritePacket(_, packet->length(), self_address_.host(),
peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
time_wait_list_manager_.SendVersionNegotiationPacket(
connection_id_, TestConnectionId(0x33), true,
true, AllSupportedVersions(), self_address_,
peer_address_, std::make_unique<QuicPerPacketContext>());
EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest, SendConnectionClose) {
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
AddConnectionId(connection_id_,
QuicTimeWaitListManager::SEND_CONNECTION_CLOSE_PACKETS,
&termination_packets);
EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength,
self_address_.host(), peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
ProcessPacket(connection_id_);
}
TEST_F(QuicTimeWaitListManagerTest, SendTwoConnectionCloses) {
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
AddConnectionId(connection_id_,
QuicTimeWaitListManager::SEND_CONNECTION_CLOSE_PACKETS,
&termination_packets);
EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength,
self_address_.host(), peer_address_, _, _))
.Times(2)
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
ProcessPacket(connection_id_);
}
TEST_F(QuicTimeWaitListManagerTest, SendPublicReset) {
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddConnectionId(connection_id_,
QuicTimeWaitListManager::SEND_STATELESS_RESET);
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(connection_id_)))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 0)));
ProcessPacket(connection_id_);
}
TEST_F(QuicTimeWaitListManagerTest, SendPublicResetWithExponentialBackOff) {
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddConnectionId(connection_id_,
QuicTimeWaitListManager::SEND_STATELESS_RESET);
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
for (int packet_number = 1; packet_number < 101; ++packet_number) {
if ((packet_number & (packet_number - 1)) == 0) {
EXPECT_CALL(writer_, WritePacket(_, _, _, _, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
}
ProcessPacket(connection_id_);
if ((packet_number & (packet_number - 1)) == 0) {
EXPECT_TRUE(QuicTimeWaitListManagerPeer::ShouldSendResponse(
&time_wait_list_manager_, packet_number));
} else {
EXPECT_FALSE(QuicTimeWaitListManagerPeer::ShouldSendResponse(
&time_wait_list_manager_, packet_number));
}
}
}
TEST_F(QuicTimeWaitListManagerTest, NoPublicResetForStatelessConnections) {
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddStatelessConnectionId(connection_id_);
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
ProcessPacket(connection_id_);
}
TEST_F(QuicTimeWaitListManagerTest, CleanUpOldConnectionIds) {
const size_t kConnectionIdCount = 100;
const size_t kOldConnectionIdCount = 31;
for (uint64_t conn_id = 1; conn_id <= kOldConnectionIdCount; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id));
AddConnectionId(connection_id, QuicTimeWaitListManager::DO_NOTHING);
}
EXPECT_EQ(kOldConnectionIdCount, time_wait_list_manager_.num_connections());
const QuicTime::Delta time_wait_period =
QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_);
clock_.AdvanceTime(time_wait_period);
for (uint64_t conn_id = kOldConnectionIdCount + 1;
conn_id <= kConnectionIdCount; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id));
AddConnectionId(connection_id, QuicTimeWaitListManager::DO_NOTHING);
}
EXPECT_EQ(kConnectionIdCount, time_wait_list_manager_.num_connections());
QuicTime::Delta offset = QuicTime::Delta::FromMicroseconds(39);
clock_.AdvanceTime(offset);
QuicTime next_alarm_time = clock_.Now() + time_wait_period - offset;
EXPECT_CALL(alarm_factory_, OnAlarmSet(_, next_alarm_time));
time_wait_list_manager_.CleanUpOldConnectionIds();
for (uint64_t conn_id = 1; conn_id <= kConnectionIdCount; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EXPECT_EQ(conn_id > kOldConnectionIdCount,
IsConnectionIdInTimeWait(connection_id))
<< "kOldConnectionIdCount: " << kOldConnectionIdCount
<< " connection_id: " << connection_id;
}
EXPECT_EQ(kConnectionIdCount - kOldConnectionIdCount,
time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest,
CleanUpOldConnectionIdsForMultipleConnectionIdsPerConnection) {
connection_id_ = TestConnectionId(7);
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(TestConnectionId(8)));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
std::vector<QuicConnectionId> active_connection_ids{connection_id_,
TestConnectionId(8)};
time_wait_list_manager_.AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_CONNECTION_CLOSE_PACKETS,
TimeWaitConnectionInfo(true, &termination_packets,
active_connection_ids, QuicTime::Delta::Zero()));
EXPECT_TRUE(
time_wait_list_manager_.IsConnectionIdInTimeWait(TestConnectionId(7)));
EXPECT_TRUE(
time_wait_list_manager_.IsConnectionIdInTimeWait(TestConnectionId(8)));
const QuicTime::Delta time_wait_period =
QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_);
clock_.AdvanceTime(time_wait_period);
time_wait_list_manager_.CleanUpOldConnectionIds();
EXPECT_FALSE(
time_wait_list_manager_.IsConnectionIdInTimeWait(TestConnectionId(7)));
EXPECT_FALSE(
time_wait_list_manager_.IsConnectionIdInTimeWait(TestConnectionId(8)));
}
TEST_F(QuicTimeWaitListManagerTest, SendQueuedPackets) {
QuicConnectionId connection_id = TestConnectionId(1);
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id));
AddConnectionId(connection_id, QuicTimeWaitListManager::SEND_STATELESS_RESET);
std::unique_ptr<QuicEncryptedPacket> packet(ConstructEncryptedPacket(
connection_id, EmptyQuicConnectionId(), 234));
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(connection_id)))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, packet->length())));
ProcessPacket(connection_id);
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(connection_id)))
.WillOnce(DoAll(Assign(&writer_is_blocked_, true),
Return(WriteResult(WRITE_STATUS_BLOCKED, EAGAIN))));
EXPECT_CALL(visitor_, OnWriteBlocked(&time_wait_list_manager_));
ProcessPacket(connection_id);
ProcessPacket(connection_id);
QuicConnectionId other_connection_id = TestConnectionId(2);
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(other_connection_id));
AddConnectionId(other_connection_id,
QuicTimeWaitListManager::SEND_STATELESS_RESET);
std::unique_ptr<QuicEncryptedPacket> other_packet(ConstructEncryptedPacket(
other_connection_id, EmptyQuicConnectionId(), 23423));
EXPECT_CALL(writer_, WritePacket(_, _, _, _, _, _)).Times(0);
EXPECT_CALL(visitor_, OnWriteBlocked(&time_wait_list_manager_));
ProcessPacket(other_connection_id);
EXPECT_EQ(2u, time_wait_list_manager_.num_connections());
writer_is_blocked_ = false;
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(connection_id)))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, packet->length())));
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(other_connection_id)))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, packet->length())));
time_wait_list_manager_.OnBlockedWriterCanWrite();
}
TEST_F(QuicTimeWaitListManagerTest, AddConnectionIdTwice) {
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
AddConnectionId(connection_id_, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_));
const size_t kConnectionCloseLength = 100;
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
AddConnectionId(connection_id_,
QuicTimeWaitListManager::SEND_TERMINATION_PACKETS,
&termination_packets);
EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_));
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength,
self_address_.host(), peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
ProcessPacket(connection_id_);
const QuicTime::Delta time_wait_period =
QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_);
QuicTime::Delta offset = QuicTime::Delta::FromMicroseconds(39);
clock_.AdvanceTime(offset + time_wait_period);
QuicTime next_alarm_time = clock_.Now() + time_wait_period;
EXPECT_CALL(alarm_factory_, OnAlarmSet(_, next_alarm_time));
time_wait_list_manager_.CleanUpOldConnectionIds();
EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_));
EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest, ConnectionIdsOrderedByTime) {
const uint64_t conn_id1 = QuicRandom::GetInstance()->RandUint64() % 2;
const QuicConnectionId connection_id1 = TestConnectionId(conn_id1);
const QuicConnectionId connection_id2 = TestConnectionId(1 - conn_id1);
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id1));
AddConnectionId(connection_id1, QuicTimeWaitListManager::DO_NOTHING);
clock_.AdvanceTime(QuicTime::Delta::FromMicroseconds(10));
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id2));
AddConnectionId(connection_id2, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_EQ(2u, time_wait_list_manager_.num_connections());
const QuicTime::Delta time_wait_period =
QuicTimeWaitListManagerPeer::time_wait_period(&time_wait_list_manager_);
clock_.AdvanceTime(time_wait_period - QuicTime::Delta::FromMicroseconds(9));
EXPECT_CALL(alarm_factory_, OnAlarmSet(_, _));
time_wait_list_manager_.CleanUpOldConnectionIds();
EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id1));
EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id2));
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
}
TEST_F(QuicTimeWaitListManagerTest, MaxConnectionsTest) {
SetQuicFlag(quic_time_wait_list_seconds, 10000000000);
SetQuicFlag(quic_time_wait_list_max_connections, 5);
uint64_t current_conn_id = 0;
const int64_t kMaxConnections =
GetQuicFlag(quic_time_wait_list_max_connections);
for (int64_t i = 0; i < kMaxConnections; ++i) {
++current_conn_id;
QuicConnectionId current_connection_id = TestConnectionId(current_conn_id);
EXPECT_FALSE(IsConnectionIdInTimeWait(current_connection_id));
EXPECT_CALL(visitor_,
OnConnectionAddedToTimeWaitList(current_connection_id));
AddConnectionId(current_connection_id, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_EQ(current_conn_id, time_wait_list_manager_.num_connections());
EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id));
}
for (int64_t i = 0; i < kMaxConnections; ++i) {
++current_conn_id;
QuicConnectionId current_connection_id = TestConnectionId(current_conn_id);
const QuicConnectionId id_to_evict =
TestConnectionId(current_conn_id - kMaxConnections);
EXPECT_TRUE(IsConnectionIdInTimeWait(id_to_evict));
EXPECT_FALSE(IsConnectionIdInTimeWait(current_connection_id));
EXPECT_CALL(visitor_,
OnConnectionAddedToTimeWaitList(current_connection_id));
AddConnectionId(current_connection_id, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_EQ(static_cast<size_t>(kMaxConnections),
time_wait_list_manager_.num_connections());
EXPECT_FALSE(IsConnectionIdInTimeWait(id_to_evict));
EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id));
}
}
TEST_F(QuicTimeWaitListManagerTest, ZeroMaxConnections) {
SetQuicFlag(quic_time_wait_list_seconds, 10000000000);
SetQuicFlag(quic_time_wait_list_max_connections, 0);
uint64_t current_conn_id = 0;
for (int64_t i = 0; i < 10; ++i) {
++current_conn_id;
QuicConnectionId current_connection_id = TestConnectionId(current_conn_id);
EXPECT_FALSE(IsConnectionIdInTimeWait(current_connection_id));
EXPECT_CALL(visitor_,
OnConnectionAddedToTimeWaitList(current_connection_id));
AddConnectionId(current_connection_id, QuicTimeWaitListManager::DO_NOTHING);
EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id));
}
}
TEST_F(QuicTimeWaitListManagerTest,
SendStatelessResetInResponseToShortHeaders) {
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
time_wait_list_manager_.AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_TERMINATION_PACKETS,
TimeWaitConnectionInfo(true, &termination_packets,
{connection_id_}));
EXPECT_CALL(writer_,
WritePacket(_, _, self_address_.host(), peer_address_, _, _))
.With(Args<0, 1>(PublicResetPacketEq(connection_id_)))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 0)));
time_wait_list_manager_.ProcessPacket(
self_address_, peer_address_, connection_id_,
IETF_QUIC_SHORT_HEADER_PACKET, kTestPacketSize,
std::make_unique<QuicPerPacketContext>());
}
TEST_F(QuicTimeWaitListManagerTest,
SendConnectionClosePacketsInResponseToShortHeaders) {
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
time_wait_list_manager_.AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_CONNECTION_CLOSE_PACKETS,
TimeWaitConnectionInfo(true, &termination_packets,
{connection_id_}));
EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength,
self_address_.host(), peer_address_, _, _))
.WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
time_wait_list_manager_.ProcessPacket(
self_address_, peer_address_, connection_id_,
IETF_QUIC_SHORT_HEADER_PACKET, kTestPacketSize,
std::make_unique<QuicPerPacketContext>());
}
TEST_F(QuicTimeWaitListManagerTest,
SendConnectionClosePacketsForMultipleConnectionIds) {
connection_id_ = TestConnectionId(7);
const size_t kConnectionCloseLength = 100;
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(TestConnectionId(8)));
std::vector<std::unique_ptr<QuicEncryptedPacket>> termination_packets;
termination_packets.push_back(
std::unique_ptr<QuicEncryptedPacket>(new QuicEncryptedPacket(
new char[kConnectionCloseLength], kConnectionCloseLength, true)));
std::vector<QuicConnectionId> active_connection_ids{connection_id_,
TestConnectionId(8)};
time_wait_list_manager_.AddConnectionIdToTimeWait(
QuicTimeWaitListManager::SEND_CONNECTION_CLOSE_PACKETS,
TimeWaitConnectionInfo(true, &termination_packets,
active_connection_ids, QuicTime::Delta::Zero()));
EXPECT_CALL(writer_, WritePacket(_, kConnectionCloseLength,
self_address_.host(), peer_address_, _, _))
.Times(2)
.WillRepeatedly(Return(WriteResult(WRITE_STATUS_OK, 1)));
for (auto const& cid : active_connection_ids) {
time_wait_list_manager_.ProcessPacket(
self_address_, peer_address_, cid, IETF_QUIC_SHORT_HEADER_PACKET,
kTestPacketSize, std::make_unique<QuicPerPacketContext>());
}
}
TEST_F(QuicTimeWaitListManagerTest, DonotCrashOnNullStatelessReset) {
time_wait_list_manager_.SendPublicReset(
self_address_, peer_address_, TestConnectionId(1),
true,
QuicFramer::GetMinStatelessResetPacketLength() - 1,
nullptr);
}
TEST_F(QuicTimeWaitListManagerTest, SendOrQueueNullPacket) {
QuicTimeWaitListManagerPeer::SendOrQueuePacket(&time_wait_list_manager_,
nullptr, nullptr);
}
TEST_F(QuicTimeWaitListManagerTest, TooManyPendingPackets) {
SetQuicFlag(quic_time_wait_list_max_pending_packets, 5); |
251 | cpp | google/quiche | quic_path_validator | quiche/quic/core/quic_path_validator.cc | quiche/quic/core/quic_path_validator_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_PATH_VALIDATOR_H_
#define QUICHE_QUIC_CORE_QUIC_PATH_VALIDATOR_H_
#include <memory>
#include <ostream>
#include "absl/container/inlined_vector.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_arena_scoped_ptr.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
namespace test {
class QuicPathValidatorPeer;
}
class QuicConnection;
enum class PathValidationReason {
kReasonUnknown,
kMultiPort,
kReversePathValidation,
kServerPreferredAddressMigration,
kPortMigration,
kConnectionMigration,
kMaxValue,
};
class QUICHE_EXPORT QuicPathValidationContext {
public:
QuicPathValidationContext(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address)
: self_address_(self_address),
peer_address_(peer_address),
effective_peer_address_(peer_address) {}
QuicPathValidationContext(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicSocketAddress& effective_peer_address)
: self_address_(self_address),
peer_address_(peer_address),
effective_peer_address_(effective_peer_address) {}
virtual ~QuicPathValidationContext() = default;
virtual QuicPacketWriter* WriterToUse() = 0;
const QuicSocketAddress& self_address() const { return self_address_; }
const QuicSocketAddress& peer_address() const { return peer_address_; }
const QuicSocketAddress& effective_peer_address() const {
return effective_peer_address_;
}
private:
QUICHE_EXPORT friend std::ostream& operator<<(
std::ostream& os, const QuicPathValidationContext& context);
QuicSocketAddress self_address_;
QuicSocketAddress peer_address_;
QuicSocketAddress effective_peer_address_;
};
class QUICHE_EXPORT QuicPathValidator {
public:
static const uint16_t kMaxRetryTimes = 2;
class QUICHE_EXPORT SendDelegate {
public:
virtual ~SendDelegate() = default;
virtual bool SendPathChallenge(
const QuicPathFrameBuffer& data_buffer,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicSocketAddress& effective_peer_address,
QuicPacketWriter* writer) = 0;
virtual QuicTime GetRetryTimeout(const QuicSocketAddress& peer_address,
QuicPacketWriter* writer) const = 0;
};
class QUICHE_EXPORT ResultDelegate {
public:
virtual ~ResultDelegate() = default;
virtual void OnPathValidationSuccess(
std::unique_ptr<QuicPathValidationContext> context,
QuicTime start_time) = 0;
virtual void OnPathValidationFailure(
std::unique_ptr<QuicPathValidationContext> context) = 0;
};
QuicPathValidator(QuicAlarmFactory* alarm_factory, QuicConnectionArena* arena,
SendDelegate* delegate, QuicRandom* random,
const QuicClock* clock, QuicConnectionContext* context);
void StartPathValidation(std::unique_ptr<QuicPathValidationContext> context,
std::unique_ptr<ResultDelegate> result_delegate,
PathValidationReason reason);
void OnPathResponse(const QuicPathFrameBuffer& probing_data,
QuicSocketAddress self_address);
void CancelPathValidation();
bool HasPendingPathValidation() const;
QuicPathValidationContext* GetContext() const;
std::unique_ptr<QuicPathValidationContext> ReleaseContext();
PathValidationReason GetPathValidationReason() const { return reason_; }
void OnRetryTimeout();
bool IsValidatingPeerAddress(const QuicSocketAddress& effective_peer_address);
void MaybeWritePacketToAddress(const char* buffer, size_t buf_len,
const QuicSocketAddress& peer_address);
private:
friend class test::QuicPathValidatorPeer;
const QuicPathFrameBuffer& GeneratePathChallengePayload();
void SendPathChallengeAndSetAlarm();
void ResetPathValidation();
struct QUICHE_EXPORT ProbingData {
explicit ProbingData(QuicTime send_time) : send_time(send_time) {}
QuicPathFrameBuffer frame_buffer;
QuicTime send_time;
};
absl::InlinedVector<ProbingData, 3> probing_data_;
SendDelegate* send_delegate_;
QuicRandom* random_;
const QuicClock* clock_;
std::unique_ptr<QuicPathValidationContext> path_context_;
std::unique_ptr<ResultDelegate> result_delegate_;
QuicArenaScopedPtr<QuicAlarm> retry_timer_;
size_t retry_count_;
PathValidationReason reason_ = PathValidationReason::kReasonUnknown;
};
}
#endif
#include "quiche/quic/core/quic_path_validator.h"
#include <memory>
#include <ostream>
#include <utility>
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
class RetryAlarmDelegate : public QuicAlarm::DelegateWithContext {
public:
explicit RetryAlarmDelegate(QuicPathValidator* path_validator,
QuicConnectionContext* context)
: QuicAlarm::DelegateWithContext(context),
path_validator_(path_validator) {}
RetryAlarmDelegate(const RetryAlarmDelegate&) = delete;
RetryAlarmDelegate& operator=(const RetryAlarmDelegate&) = delete;
void OnAlarm() override { path_validator_->OnRetryTimeout(); }
private:
QuicPathValidator* path_validator_;
};
std::ostream& operator<<(std::ostream& os,
const QuicPathValidationContext& context) {
return os << " from " << context.self_address_ << " to "
<< context.peer_address_;
}
QuicPathValidator::QuicPathValidator(QuicAlarmFactory* alarm_factory,
QuicConnectionArena* arena,
SendDelegate* send_delegate,
QuicRandom* random, const QuicClock* clock,
QuicConnectionContext* context)
: send_delegate_(send_delegate),
random_(random),
clock_(clock),
retry_timer_(alarm_factory->CreateAlarm(
arena->New<RetryAlarmDelegate>(this, context), arena)),
retry_count_(0u) {}
void QuicPathValidator::OnPathResponse(const QuicPathFrameBuffer& probing_data,
QuicSocketAddress self_address) {
if (!HasPendingPathValidation()) {
return;
}
QUIC_DVLOG(1) << "Match PATH_RESPONSE received on " << self_address;
QUIC_BUG_IF(quic_bug_12402_1, !path_context_->self_address().IsInitialized())
<< "Self address should have been known by now";
if (self_address != path_context_->self_address()) {
QUIC_DVLOG(1) << "Expect the response to be received on "
<< path_context_->self_address();
return;
}
for (auto it = probing_data_.begin(); it != probing_data_.end(); ++it) {
if (it->frame_buffer == probing_data) {
result_delegate_->OnPathValidationSuccess(std::move(path_context_),
it->send_time);
ResetPathValidation();
return;
}
}
QUIC_DVLOG(1) << "PATH_RESPONSE with payload " << probing_data.data()
<< " doesn't match the probing data.";
}
void QuicPathValidator::StartPathValidation(
std::unique_ptr<QuicPathValidationContext> context,
std::unique_ptr<ResultDelegate> result_delegate,
PathValidationReason reason) {
QUICHE_DCHECK(context);
QUIC_DLOG(INFO) << "Start validating path " << *context
<< " via writer: " << context->WriterToUse();
if (path_context_ != nullptr) {
QUIC_BUG(quic_bug_10876_1)
<< "There is an on-going validation on path " << *path_context_;
ResetPathValidation();
}
reason_ = reason;
path_context_ = std::move(context);
result_delegate_ = std::move(result_delegate);
SendPathChallengeAndSetAlarm();
}
void QuicPathValidator::ResetPathValidation() {
path_context_ = nullptr;
result_delegate_ = nullptr;
retry_timer_->Cancel();
retry_count_ = 0;
reason_ = PathValidationReason::kReasonUnknown;
}
void QuicPathValidator::CancelPathValidation() {
if (path_context_ == nullptr) {
return;
}
QUIC_DVLOG(1) << "Cancel validation on path" << *path_context_;
result_delegate_->OnPathValidationFailure(std::move(path_context_));
ResetPathValidation();
}
bool QuicPathValidator::HasPendingPathValidation() const {
return path_context_ != nullptr;
}
QuicPathValidationContext* QuicPathValidator::GetContext() const {
return path_context_.get();
}
std::unique_ptr<QuicPathValidationContext> QuicPathValidator::ReleaseContext() {
auto ret = std::move(path_context_);
ResetPathValidation();
return ret;
}
const QuicPathFrameBuffer& QuicPathValidator::GeneratePathChallengePayload() {
probing_data_.emplace_back(clock_->Now());
random_->RandBytes(probing_data_.back().frame_buffer.data(),
sizeof(QuicPathFrameBuffer));
return probing_data_.back().frame_buffer;
}
void QuicPathValidator::OnRetryTimeout() {
++retry_count_;
if (retry_count_ > kMaxRetryTimes) {
CancelPathValidation();
return;
}
QUIC_DVLOG(1) << "Send another PATH_CHALLENGE on path " << *path_context_;
SendPathChallengeAndSetAlarm();
}
void QuicPathValidator::SendPathChallengeAndSetAlarm() {
bool should_continue = send_delegate_->SendPathChallenge(
GeneratePathChallengePayload(), path_context_->self_address(),
path_context_->peer_address(), path_context_->effective_peer_address(),
path_context_->WriterToUse());
if (!should_continue) {
CancelPathValidation();
return;
}
retry_timer_->Set(send_delegate_->GetRetryTimeout(
path_context_->peer_address(), path_context_->WriterToUse()));
}
bool QuicPathValidator::IsValidatingPeerAddress(
const QuicSocketAddress& effective_peer_address) {
return path_context_ != nullptr &&
path_context_->effective_peer_address() == effective_peer_address;
}
void QuicPathValidator::MaybeWritePacketToAddress(
const char* buffer, size_t buf_len, const QuicSocketAddress& peer_address) {
if (!HasPendingPathValidation() ||
path_context_->peer_address() != peer_address) {
return;
}
QUIC_DVLOG(1) << "Path validator is sending packet of size " << buf_len
<< " from " << path_context_->self_address() << " to "
<< path_context_->peer_address();
path_context_->WriterToUse()->WritePacket(
buffer, buf_len, path_context_->self_address().host(),
path_context_->peer_address(), nullptr, QuicPacketWriterParams());
}
} | #include "quiche/quic/core/quic_path_validator.h"
#include <memory>
#include "quiche/quic/core/frames/quic_path_challenge_frame.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
#include "quiche/quic/test_tools/mock_random.h"
#include "quiche/quic/test_tools/quic_path_validator_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::Invoke;
using testing::Return;
namespace quic {
namespace test {
class MockSendDelegate : public QuicPathValidator::SendDelegate {
public:
MOCK_METHOD(bool, SendPathChallenge,
(const QuicPathFrameBuffer&, const QuicSocketAddress&,
const QuicSocketAddress&, const QuicSocketAddress&,
QuicPacketWriter*),
(override));
MOCK_METHOD(QuicTime, GetRetryTimeout,
(const QuicSocketAddress&, QuicPacketWriter*), (const, override));
};
class QuicPathValidatorTest : public QuicTest {
public:
QuicPathValidatorTest()
: path_validator_(&alarm_factory_, &arena_, &send_delegate_, &random_,
&clock_,
nullptr),
context_(new MockQuicPathValidationContext(
self_address_, peer_address_, effective_peer_address_, &writer_)),
result_delegate_(
new testing::StrictMock<MockQuicPathValidationResultDelegate>()) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
ON_CALL(send_delegate_, GetRetryTimeout(_, _))
.WillByDefault(
Return(clock_.ApproximateNow() +
3 * QuicTime::Delta::FromMilliseconds(kInitialRttMs)));
}
protected:
quic::test::MockAlarmFactory alarm_factory_;
MockSendDelegate send_delegate_;
MockRandom random_;
MockClock clock_;
QuicConnectionArena arena_;
QuicPathValidator path_validator_;
QuicSocketAddress self_address_{QuicIpAddress::Any4(), 443};
QuicSocketAddress peer_address_{QuicIpAddress::Loopback4(), 443};
QuicSocketAddress effective_peer_address_{QuicIpAddress::Loopback4(), 12345};
MockPacketWriter writer_;
MockQuicPathValidationContext* context_;
MockQuicPathValidationResultDelegate* result_delegate_;
};
TEST_F(QuicPathValidatorTest, PathValidationSuccessOnFirstRound) {
QuicPathFrameBuffer challenge_data;
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.WillOnce(Invoke([&](const QuicPathFrameBuffer& payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
memcpy(challenge_data.data(), payload.data(), payload.size());
return true;
}));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_));
const QuicTime expected_start_time = clock_.Now();
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
EXPECT_TRUE(path_validator_.HasPendingPathValidation());
EXPECT_EQ(PathValidationReason::kMultiPort,
path_validator_.GetPathValidationReason());
EXPECT_TRUE(path_validator_.IsValidatingPeerAddress(effective_peer_address_));
EXPECT_CALL(*result_delegate_, OnPathValidationSuccess(_, _))
.WillOnce(Invoke([=](std::unique_ptr<QuicPathValidationContext> context,
QuicTime start_time) {
EXPECT_EQ(context.get(), context_);
EXPECT_EQ(start_time, expected_start_time);
}));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(kInitialRttMs));
path_validator_.OnPathResponse(challenge_data, self_address_);
EXPECT_FALSE(path_validator_.HasPendingPathValidation());
EXPECT_EQ(PathValidationReason::kReasonUnknown,
path_validator_.GetPathValidationReason());
}
TEST_F(QuicPathValidatorTest, RespondWithDifferentSelfAddress) {
QuicPathFrameBuffer challenge_data;
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.WillOnce(Invoke([&](const QuicPathFrameBuffer payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
memcpy(challenge_data.data(), payload.data(), payload.size());
return true;
}));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_));
const QuicTime expected_start_time = clock_.Now();
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
const QuicSocketAddress kAlternativeSelfAddress(QuicIpAddress::Any6(), 54321);
EXPECT_NE(kAlternativeSelfAddress, self_address_);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(kInitialRttMs));
path_validator_.OnPathResponse(challenge_data, kAlternativeSelfAddress);
EXPECT_CALL(*result_delegate_, OnPathValidationSuccess(_, _))
.WillOnce(Invoke([=](std::unique_ptr<QuicPathValidationContext> context,
QuicTime start_time) {
EXPECT_EQ(context->self_address(), self_address_);
EXPECT_EQ(start_time, expected_start_time);
}));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(kInitialRttMs));
path_validator_.OnPathResponse(challenge_data, self_address_);
EXPECT_EQ(PathValidationReason::kReasonUnknown,
path_validator_.GetPathValidationReason());
}
TEST_F(QuicPathValidatorTest, RespondAfter1stRetry) {
QuicPathFrameBuffer challenge_data;
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.WillOnce(Invoke([&](const QuicPathFrameBuffer& payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
memcpy(challenge_data.data(), payload.data(), payload.size());
return true;
}))
.WillOnce(Invoke([&](const QuicPathFrameBuffer& payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
EXPECT_NE(payload, challenge_data);
return true;
}));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_))
.Times(2u);
const QuicTime start_time = clock_.Now();
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(3 * kInitialRttMs));
random_.ChangeValue();
alarm_factory_.FireAlarm(
QuicPathValidatorPeer::retry_timer(&path_validator_));
EXPECT_CALL(*result_delegate_, OnPathValidationSuccess(_, start_time));
path_validator_.OnPathResponse(challenge_data, self_address_);
EXPECT_FALSE(path_validator_.HasPendingPathValidation());
}
TEST_F(QuicPathValidatorTest, RespondToRetryChallenge) {
QuicPathFrameBuffer challenge_data;
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.WillOnce(Invoke([&](const QuicPathFrameBuffer& payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
memcpy(challenge_data.data(), payload.data(), payload.size());
return true;
}))
.WillOnce(Invoke([&](const QuicPathFrameBuffer& payload,
const QuicSocketAddress&, const QuicSocketAddress&,
const QuicSocketAddress&, QuicPacketWriter*) {
EXPECT_NE(challenge_data, payload);
memcpy(challenge_data.data(), payload.data(), payload.size());
return true;
}));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_))
.Times(2u);
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(3 * kInitialRttMs));
const QuicTime start_time = clock_.Now();
random_.ChangeValue();
alarm_factory_.FireAlarm(
QuicPathValidatorPeer::retry_timer(&path_validator_));
EXPECT_CALL(*result_delegate_, OnPathValidationSuccess(_, start_time));
path_validator_.OnPathResponse(challenge_data, self_address_);
EXPECT_FALSE(path_validator_.HasPendingPathValidation());
}
TEST_F(QuicPathValidatorTest, ValidationTimeOut) {
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.Times(3u)
.WillRepeatedly(Return(true));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_))
.Times(3u);
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
QuicPathFrameBuffer challenge_data;
memset(challenge_data.data(), 'a', challenge_data.size());
path_validator_.OnPathResponse(challenge_data, self_address_);
EXPECT_CALL(*result_delegate_, OnPathValidationFailure(_))
.WillOnce(Invoke([=](std::unique_ptr<QuicPathValidationContext> context) {
EXPECT_EQ(context_, context.get());
}));
for (size_t i = 0; i <= QuicPathValidator::kMaxRetryTimes; ++i) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(3 * kInitialRttMs));
alarm_factory_.FireAlarm(
QuicPathValidatorPeer::retry_timer(&path_validator_));
}
EXPECT_EQ(PathValidationReason::kReasonUnknown,
path_validator_.GetPathValidationReason());
}
TEST_F(QuicPathValidatorTest, SendPathChallengeError) {
EXPECT_CALL(send_delegate_,
SendPathChallenge(_, self_address_, peer_address_,
effective_peer_address_, &writer_))
.WillOnce(Invoke([&](const QuicPathFrameBuffer&, const QuicSocketAddress&,
const QuicSocketAddress&, const QuicSocketAddress&,
QuicPacketWriter*) {
path_validator_.CancelPathValidation();
return false;
}));
EXPECT_CALL(send_delegate_, GetRetryTimeout(peer_address_, &writer_))
.Times(0u);
EXPECT_CALL(*result_delegate_, OnPathValidationFailure(_));
path_validator_.StartPathValidation(
std::unique_ptr<QuicPathValidationContext>(context_),
std::unique_ptr<MockQuicPathValidationResultDelegate>(result_delegate_),
PathValidationReason::kMultiPort);
EXPECT_FALSE(path_validator_.HasPendingPathValidation());
EXPECT_FALSE(QuicPathValidatorPeer::retry_timer(&path_validator_)->IsSet());
EXPECT_EQ(PathValidationReason::kReasonUnknown,
path_validator_.GetPathValidationReason());
}
}
} |
252 | cpp | google/quiche | quic_crypto_client_stream | quiche/quic/core/quic_crypto_client_stream.cc | quiche/quic/core/quic_crypto_client_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CRYPTO_CLIENT_STREAM_H_
#define QUICHE_QUIC_CORE_QUIC_CRYPTO_CLIENT_STREAM_H_
#include <cstdint>
#include <memory>
#include <string>
#include "quiche/quic/core/crypto/proof_verifier.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_crypto_handshaker.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicCryptoClientStreamPeer;
}
class TlsClientHandshaker;
class QUICHE_EXPORT QuicCryptoClientStreamBase : public QuicCryptoStream {
public:
explicit QuicCryptoClientStreamBase(QuicSession* session);
~QuicCryptoClientStreamBase() override {}
virtual bool CryptoConnect() = 0;
virtual int num_sent_client_hellos() const = 0;
virtual bool ResumptionAttempted() const = 0;
virtual bool IsResumption() const = 0;
virtual bool EarlyDataAccepted() const = 0;
virtual bool ReceivedInchoateReject() const = 0;
virtual int num_scup_messages_received() const = 0;
bool ExportKeyingMaterial(absl::string_view ,
absl::string_view ,
size_t ,
std::string* ) override {
QUICHE_NOTREACHED();
return false;
}
std::string GetAddressToken(
const CachedNetworkParameters* ) const override {
QUICHE_DCHECK(false);
return "";
}
bool ValidateAddressToken(absl::string_view ) const override {
QUICHE_DCHECK(false);
return false;
}
const CachedNetworkParameters* PreviousCachedNetworkParams() const override {
QUICHE_DCHECK(false);
return nullptr;
}
void SetPreviousCachedNetworkParams(
CachedNetworkParameters ) override {
QUICHE_DCHECK(false);
}
};
class QUICHE_EXPORT QuicCryptoClientStream : public QuicCryptoClientStreamBase {
public:
static const int kMaxClientHellos = 4;
class QUICHE_EXPORT HandshakerInterface {
public:
virtual ~HandshakerInterface() {}
virtual bool CryptoConnect() = 0;
virtual int num_sent_client_hellos() const = 0;
virtual bool ResumptionAttempted() const = 0;
virtual bool IsResumption() const = 0;
virtual bool EarlyDataAccepted() const = 0;
virtual ssl_early_data_reason_t EarlyDataReason() const = 0;
virtual bool ReceivedInchoateReject() const = 0;
virtual int num_scup_messages_received() const = 0;
virtual std::string chlo_hash() const = 0;
virtual bool encryption_established() const = 0;
virtual bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const = 0;
virtual EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const = 0;
virtual bool one_rtt_keys_available() const = 0;
virtual const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const = 0;
virtual CryptoMessageParser* crypto_message_parser() = 0;
virtual size_t BufferSizeLimitForLevel(EncryptionLevel level) const = 0;
virtual std::unique_ptr<QuicDecrypter>
AdvanceKeysAndCreateCurrentOneRttDecrypter() = 0;
virtual std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() = 0;
virtual HandshakeState GetHandshakeState() const = 0;
virtual void OnOneRttPacketAcknowledged() = 0;
virtual void OnHandshakePacketSent() = 0;
virtual void OnConnectionClosed(QuicErrorCode error,
ConnectionCloseSource source) = 0;
virtual void OnHandshakeDoneReceived() = 0;
virtual void OnNewTokenReceived(absl::string_view token) = 0;
virtual void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> application_state) = 0;
virtual bool ExportKeyingMaterial(absl::string_view label,
absl::string_view context,
size_t result_len,
std::string* result) = 0;
};
class QUICHE_EXPORT ProofHandler {
public:
virtual ~ProofHandler() {}
virtual void OnProofValid(
const QuicCryptoClientConfig::CachedState& cached) = 0;
virtual void OnProofVerifyDetailsAvailable(
const ProofVerifyDetails& verify_details) = 0;
};
QuicCryptoClientStream(const QuicServerId& server_id, QuicSession* session,
std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
ProofHandler* proof_handler,
bool has_application_state);
QuicCryptoClientStream(const QuicCryptoClientStream&) = delete;
QuicCryptoClientStream& operator=(const QuicCryptoClientStream&) = delete;
~QuicCryptoClientStream() override;
bool CryptoConnect() override;
int num_sent_client_hellos() const override;
bool ResumptionAttempted() const override;
bool IsResumption() const override;
bool EarlyDataAccepted() const override;
ssl_early_data_reason_t EarlyDataReason() const override;
bool ReceivedInchoateReject() const override;
int num_scup_messages_received() const override;
bool encryption_established() const override;
bool one_rtt_keys_available() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
void OnPacketDecrypted(EncryptionLevel ) override {}
void OnOneRttPacketAcknowledged() override;
void OnHandshakePacketSent() override;
void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source) override;
void OnHandshakeDoneReceived() override;
void OnNewTokenReceived(absl::string_view token) override;
HandshakeState GetHandshakeState() const override;
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> application_state) override;
size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
SSL* GetSsl() const override;
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override;
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override;
bool ExportKeyingMaterial(absl::string_view label, absl::string_view context,
size_t result_len, std::string* result) override;
std::string chlo_hash() const;
protected:
void set_handshaker(std::unique_ptr<HandshakerInterface> handshaker) {
handshaker_ = std::move(handshaker);
}
private:
friend class test::QuicCryptoClientStreamPeer;
std::unique_ptr<HandshakerInterface> handshaker_;
TlsClientHandshaker* tls_handshaker_{nullptr};
};
}
#endif
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include <memory>
#include <string>
#include <utility>
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/crypto_utils.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/quic_crypto_client_handshaker.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/tls_client_handshaker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
const int QuicCryptoClientStream::kMaxClientHellos;
QuicCryptoClientStreamBase::QuicCryptoClientStreamBase(QuicSession* session)
: QuicCryptoStream(session) {}
QuicCryptoClientStream::QuicCryptoClientStream(
const QuicServerId& server_id, QuicSession* session,
std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config, ProofHandler* proof_handler,
bool has_application_state)
: QuicCryptoClientStreamBase(session) {
QUICHE_DCHECK_EQ(Perspective::IS_CLIENT,
session->connection()->perspective());
switch (session->connection()->version().handshake_protocol) {
case PROTOCOL_QUIC_CRYPTO:
handshaker_ = std::make_unique<QuicCryptoClientHandshaker>(
server_id, this, session, std::move(verify_context), crypto_config,
proof_handler);
break;
case PROTOCOL_TLS1_3: {
auto handshaker = std::make_unique<TlsClientHandshaker>(
server_id, this, session, std::move(verify_context), crypto_config,
proof_handler, has_application_state);
tls_handshaker_ = handshaker.get();
handshaker_ = std::move(handshaker);
break;
}
case PROTOCOL_UNSUPPORTED:
QUIC_BUG(quic_bug_10296_1)
<< "Attempting to create QuicCryptoClientStream for unknown "
"handshake protocol";
}
}
QuicCryptoClientStream::~QuicCryptoClientStream() {}
bool QuicCryptoClientStream::CryptoConnect() {
return handshaker_->CryptoConnect();
}
int QuicCryptoClientStream::num_sent_client_hellos() const {
return handshaker_->num_sent_client_hellos();
}
bool QuicCryptoClientStream::ResumptionAttempted() const {
return handshaker_->ResumptionAttempted();
}
bool QuicCryptoClientStream::IsResumption() const {
return handshaker_->IsResumption();
}
bool QuicCryptoClientStream::EarlyDataAccepted() const {
return handshaker_->EarlyDataAccepted();
}
ssl_early_data_reason_t QuicCryptoClientStream::EarlyDataReason() const {
return handshaker_->EarlyDataReason();
}
bool QuicCryptoClientStream::ReceivedInchoateReject() const {
return handshaker_->ReceivedInchoateReject();
}
int QuicCryptoClientStream::num_scup_messages_received() const {
return handshaker_->num_scup_messages_received();
}
bool QuicCryptoClientStream::encryption_established() const {
return handshaker_->encryption_established();
}
bool QuicCryptoClientStream::one_rtt_keys_available() const {
return handshaker_->one_rtt_keys_available();
}
const QuicCryptoNegotiatedParameters&
QuicCryptoClientStream::crypto_negotiated_params() const {
return handshaker_->crypto_negotiated_params();
}
CryptoMessageParser* QuicCryptoClientStream::crypto_message_parser() {
return handshaker_->crypto_message_parser();
}
HandshakeState QuicCryptoClientStream::GetHandshakeState() const {
return handshaker_->GetHandshakeState();
}
size_t QuicCryptoClientStream::BufferSizeLimitForLevel(
EncryptionLevel level) const {
return handshaker_->BufferSizeLimitForLevel(level);
}
std::unique_ptr<QuicDecrypter>
QuicCryptoClientStream::AdvanceKeysAndCreateCurrentOneRttDecrypter() {
return handshaker_->AdvanceKeysAndCreateCurrentOneRttDecrypter();
}
std::unique_ptr<QuicEncrypter>
QuicCryptoClientStream::CreateCurrentOneRttEncrypter() {
return handshaker_->CreateCurrentOneRttEncrypter();
}
bool QuicCryptoClientStream::ExportKeyingMaterial(absl::string_view label,
absl::string_view context,
size_t result_len,
std::string* result) {
return handshaker_->ExportKeyingMaterial(label, context, result_len, result);
}
std::string QuicCryptoClientStream::chlo_hash() const {
return handshaker_->chlo_hash();
}
void QuicCryptoClientStream::OnOneRttPacketAcknowledged() {
handshaker_->OnOneRttPacketAcknowledged();
}
void QuicCryptoClientStream::OnHandshakePacketSent() {
handshaker_->OnHandshakePacketSent();
}
void QuicCryptoClientStream::OnConnectionClosed(
const QuicConnectionCloseFrame& frame, ConnectionCloseSource source) {
handshaker_->OnConnectionClosed(frame.quic_error_code, source);
}
void QuicCryptoClientStream::OnHandshakeDoneReceived() {
handshaker_->OnHandshakeDoneReceived();
}
void QuicCryptoClientStream::OnNewTokenReceived(absl::string_view token) {
handshaker_->OnNewTokenReceived(token);
}
void QuicCryptoClientStream::SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> application_state) {
handshaker_->SetServerApplicationStateForResumption(
std::move(application_state));
}
SSL* QuicCryptoClientStream::GetSsl() const {
return tls_handshaker_ == nullptr ? nullptr : tls_handshaker_->ssl();
}
bool QuicCryptoClientStream::IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const {
return handshaker_->IsCryptoFrameExpectedForEncryptionLevel(level);
}
EncryptionLevel
QuicCryptoClientStream::GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const {
return handshaker_->GetEncryptionLevelToSendCryptoDataOfSpace(space);
}
} | #include "quiche/quic/core/quic_crypto_client_stream.h"
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "quiche/quic/core/crypto/aes_128_gcm_12_encrypter.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_stream_sequencer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_quic_framer.h"
#include "quiche/quic/test_tools/simple_session_cache.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
using testing::_;
namespace quic {
namespace test {
namespace {
const char kServerHostname[] = "test.example.com";
const uint16_t kServerPort = 443;
class QuicCryptoClientStreamTest : public QuicTest {
public:
QuicCryptoClientStreamTest()
: supported_versions_(AllSupportedVersionsWithQuicCrypto()),
server_id_(kServerHostname, kServerPort, false),
crypto_config_(crypto_test_utils::ProofVerifierForTesting(),
std::make_unique<test::SimpleSessionCache>()),
server_crypto_config_(
crypto_test_utils::CryptoServerConfigForTesting()) {
CreateConnection();
}
void CreateSession() {
session_ = std::make_unique<TestQuicSpdyClientSession>(
connection_, DefaultQuicConfig(), supported_versions_, server_id_,
&crypto_config_);
EXPECT_CALL(*session_, GetAlpnsToOffer())
.WillRepeatedly(testing::Return(std::vector<std::string>(
{AlpnForVersion(connection_->version())})));
}
void CreateConnection() {
connection_ =
new PacketSavingConnection(&client_helper_, &alarm_factory_,
Perspective::IS_CLIENT, supported_versions_);
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
CreateSession();
}
void CompleteCryptoHandshake() {
int proof_verify_details_calls = 1;
if (stream()->handshake_protocol() != PROTOCOL_TLS1_3) {
EXPECT_CALL(*session_, OnProofValid(testing::_))
.Times(testing::AtLeast(1));
proof_verify_details_calls = 0;
}
EXPECT_CALL(*session_, OnProofVerifyDetailsAvailable(testing::_))
.Times(testing::AtLeast(proof_verify_details_calls));
stream()->CryptoConnect();
QuicConfig config;
crypto_test_utils::HandshakeWithFakeServer(
&config, server_crypto_config_.get(), &server_helper_, &alarm_factory_,
connection_, stream(), AlpnForVersion(connection_->version()));
}
QuicCryptoClientStream* stream() {
return session_->GetMutableCryptoStream();
}
MockQuicConnectionHelper server_helper_;
MockQuicConnectionHelper client_helper_;
MockAlarmFactory alarm_factory_;
PacketSavingConnection* connection_;
ParsedQuicVersionVector supported_versions_;
std::unique_ptr<TestQuicSpdyClientSession> session_;
QuicServerId server_id_;
CryptoHandshakeMessage message_;
QuicCryptoClientConfig crypto_config_;
std::unique_ptr<QuicCryptoServerConfig> server_crypto_config_;
};
TEST_F(QuicCryptoClientStreamTest, NotInitiallyConected) {
EXPECT_FALSE(stream()->encryption_established());
EXPECT_FALSE(stream()->one_rtt_keys_available());
}
TEST_F(QuicCryptoClientStreamTest, ConnectedAfterSHLO) {
CompleteCryptoHandshake();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_no_session_offered);
}
TEST_F(QuicCryptoClientStreamTest, MessageAfterHandshake) {
CompleteCryptoHandshake();
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, _, _));
message_.set_tag(kCHLO);
crypto_test_utils::SendHandshakeMessageToStream(stream(), message_,
Perspective::IS_CLIENT);
}
TEST_F(QuicCryptoClientStreamTest, BadMessageType) {
stream()->CryptoConnect();
message_.set_tag(kCHLO);
EXPECT_CALL(*connection_, CloseConnection(QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
"Expected REJ", _));
crypto_test_utils::SendHandshakeMessageToStream(stream(), message_,
Perspective::IS_CLIENT);
}
TEST_F(QuicCryptoClientStreamTest, NegotiatedParameters) {
CompleteCryptoHandshake();
const QuicConfig* config = session_->config();
EXPECT_EQ(kMaximumIdleTimeoutSecs, config->IdleNetworkTimeout().ToSeconds());
const QuicCryptoNegotiatedParameters& crypto_params(
stream()->crypto_negotiated_params());
EXPECT_EQ(crypto_config_.aead[0], crypto_params.aead);
EXPECT_EQ(crypto_config_.kexs[0], crypto_params.key_exchange);
}
TEST_F(QuicCryptoClientStreamTest, ExpiredServerConfig) {
CompleteCryptoHandshake();
CreateConnection();
connection_->AdvanceTime(
QuicTime::Delta::FromSeconds(60 * 60 * 24 * 365 * 5));
EXPECT_CALL(*session_, OnProofValid(testing::_));
stream()->CryptoConnect();
ASSERT_EQ(1u, connection_->encrypted_packets_.size());
EXPECT_EQ(ENCRYPTION_INITIAL, connection_->encryption_level());
}
TEST_F(QuicCryptoClientStreamTest, ClientTurnedOffZeroRtt) {
CompleteCryptoHandshake();
CreateConnection();
QuicTagVector options;
options.push_back(kQNZ2);
session_->config()->SetClientConnectionOptions(options);
CompleteCryptoHandshake();
EXPECT_EQ(2, stream()->num_sent_client_hellos());
EXPECT_FALSE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_disabled);
}
TEST_F(QuicCryptoClientStreamTest, ClockSkew) {
connection_->AdvanceTime(
QuicTime::Delta::FromSeconds(60 * 60 * 24 * 365 * 5));
CompleteCryptoHandshake();
}
TEST_F(QuicCryptoClientStreamTest, InvalidCachedServerConfig) {
CompleteCryptoHandshake();
CreateConnection();
QuicCryptoClientConfig::CachedState* state =
crypto_config_.LookupOrCreate(server_id_);
std::vector<std::string> certs = state->certs();
std::string cert_sct = state->cert_sct();
std::string signature = state->signature();
std::string chlo_hash = state->chlo_hash();
state->SetProof(certs, cert_sct, chlo_hash, signature + signature);
EXPECT_CALL(*session_, OnProofVerifyDetailsAvailable(testing::_))
.Times(testing::AnyNumber());
stream()->CryptoConnect();
ASSERT_EQ(1u, connection_->encrypted_packets_.size());
}
TEST_F(QuicCryptoClientStreamTest, ServerConfigUpdate) {
CompleteCryptoHandshake();
QuicCryptoClientConfig::CachedState* state =
crypto_config_.LookupOrCreate(server_id_);
EXPECT_NE("xstk", state->source_address_token());
unsigned char stk[] = {'x', 's', 't', 'k'};
unsigned char scfg[] = {
0x53, 0x43, 0x46, 0x47,
0x01, 0x00,
0x00, 0x00,
0x45, 0x58, 0x50, 0x59,
0x08, 0x00, 0x00, 0x00,
'1', '2', '3', '4', '5', '6', '7', '8'};
CryptoHandshakeMessage server_config_update;
server_config_update.set_tag(kSCUP);
server_config_update.SetValue(kSourceAddressTokenTag, stk);
server_config_update.SetValue(kSCFG, scfg);
const uint64_t expiry_seconds = 60 * 60 * 24 * 2;
server_config_update.SetValue(kSTTL, expiry_seconds);
crypto_test_utils::SendHandshakeMessageToStream(
stream(), server_config_update, Perspective::IS_SERVER);
EXPECT_EQ("xstk", state->source_address_token());
const std::string& cached_scfg = state->server_config();
quiche::test::CompareCharArraysWithHexError(
"scfg", cached_scfg.data(), cached_scfg.length(),
reinterpret_cast<char*>(scfg), ABSL_ARRAYSIZE(scfg));
QuicStreamSequencer* sequencer = QuicStreamPeer::sequencer(stream());
EXPECT_FALSE(QuicStreamSequencerPeer::IsUnderlyingBufferAllocated(sequencer));
}
TEST_F(QuicCryptoClientStreamTest, ServerConfigUpdateWithCert) {
CompleteCryptoHandshake();
QuicCryptoServerConfig crypto_config(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(), KeyExchangeSource::Default());
crypto_test_utils::SetupCryptoServerConfigForTest(
connection_->clock(), QuicRandom::GetInstance(), &crypto_config);
SourceAddressTokens tokens;
QuicCompressedCertsCache cache(1);
CachedNetworkParameters network_params;
CryptoHandshakeMessage server_config_update;
class Callback : public BuildServerConfigUpdateMessageResultCallback {
public:
Callback(bool* ok, CryptoHandshakeMessage* message)
: ok_(ok), message_(message) {}
void Run(bool ok, const CryptoHandshakeMessage& message) override {
*ok_ = ok;
*message_ = message;
}
private:
bool* ok_;
CryptoHandshakeMessage* message_;
};
bool ok = false;
crypto_config.BuildServerConfigUpdateMessage(
session_->transport_version(), stream()->chlo_hash(), tokens,
QuicSocketAddress(QuicIpAddress::Loopback6(), 1234),
QuicSocketAddress(QuicIpAddress::Loopback6(), 4321), connection_->clock(),
QuicRandom::GetInstance(), &cache, stream()->crypto_negotiated_params(),
&network_params,
std::unique_ptr<BuildServerConfigUpdateMessageResultCallback>(
new Callback(&ok, &server_config_update)));
EXPECT_TRUE(ok);
EXPECT_CALL(*session_, OnProofValid(testing::_));
crypto_test_utils::SendHandshakeMessageToStream(
stream(), server_config_update, Perspective::IS_SERVER);
CreateConnection();
EXPECT_CALL(*session_, OnProofValid(testing::_));
EXPECT_CALL(*session_, OnProofVerifyDetailsAvailable(testing::_))
.Times(testing::AnyNumber());
stream()->CryptoConnect();
EXPECT_TRUE(session_->IsEncryptionEstablished());
}
TEST_F(QuicCryptoClientStreamTest, ServerConfigUpdateBeforeHandshake) {
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE, _, _));
CryptoHandshakeMessage server_config_update;
server_config_update.set_tag(kSCUP);
crypto_test_utils::SendHandshakeMessageToStream(
stream(), server_config_update, Perspective::IS_SERVER);
}
}
}
} |
253 | cpp | google/quiche | quic_connection_context | quiche/quic/core/quic_connection_context.cc | quiche/quic/core/quic_connection_context_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONNECTION_CONTEXT_H_
#define QUICHE_QUIC_CORE_QUIC_CONNECTION_CONTEXT_H_
#include <memory>
#include "absl/strings/str_format.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
class QUICHE_EXPORT QuicConnectionTracer {
public:
virtual ~QuicConnectionTracer() = default;
virtual void PrintLiteral(const char* literal) = 0;
virtual void PrintString(absl::string_view s) = 0;
template <typename... Args>
void Printf(const absl::FormatSpec<Args...>& format, const Args&... args) {
std::string s = absl::StrFormat(format, args...);
PrintString(s);
}
};
class QUICHE_EXPORT QuicBugListener {
public:
virtual ~QuicBugListener() = default;
virtual void OnQuicBug(const char* bug_id, const char* file, int line,
absl::string_view bug_message) = 0;
};
class QUICHE_EXPORT QuicConnectionContextListener {
public:
virtual ~QuicConnectionContextListener() = default;
private:
friend class QuicConnectionContextSwitcher;
virtual void Activate() = 0;
virtual void Deactivate() = 0;
};
struct QUICHE_EXPORT QuicConnectionContext final {
static QuicConnectionContext* Current();
std::unique_ptr<QuicConnectionContextListener> listener;
std::unique_ptr<QuicConnectionTracer> tracer;
std::unique_ptr<QuicBugListener> bug_listener;
};
class QUICHE_EXPORT QuicConnectionContextSwitcher final {
public:
explicit QuicConnectionContextSwitcher(QuicConnectionContext* new_context);
~QuicConnectionContextSwitcher();
private:
QuicConnectionContext* old_context_;
};
inline void QUIC_TRACELITERAL(const char* literal) {
QuicConnectionContext* current = QuicConnectionContext::Current();
if (current && current->tracer) {
current->tracer->PrintLiteral(literal);
}
}
inline void QUIC_TRACESTRING(absl::string_view s) {
QuicConnectionContext* current = QuicConnectionContext::Current();
if (current && current->tracer) {
current->tracer->PrintString(s);
}
}
template <typename... Args>
void QUIC_TRACEPRINTF(const absl::FormatSpec<Args...>& format,
const Args&... args) {
QuicConnectionContext* current = QuicConnectionContext::Current();
if (current && current->tracer) {
current->tracer->Printf(format, args...);
}
}
inline QuicBugListener* CurrentBugListener() {
QuicConnectionContext* current = QuicConnectionContext::Current();
return (current != nullptr) ? current->bug_listener.get() : nullptr;
}
}
#endif
#include "quiche/quic/core/quic_connection_context.h"
#include "absl/base/attributes.h"
namespace quic {
namespace {
ABSL_CONST_INIT thread_local QuicConnectionContext* current_context = nullptr;
}
QuicConnectionContext* QuicConnectionContext::Current() {
return current_context;
}
QuicConnectionContextSwitcher::QuicConnectionContextSwitcher(
QuicConnectionContext* new_context)
: old_context_(QuicConnectionContext::Current()) {
current_context = new_context;
if (new_context && new_context->listener) {
new_context->listener->Activate();
}
}
QuicConnectionContextSwitcher::~QuicConnectionContextSwitcher() {
QuicConnectionContext* current = QuicConnectionContext::Current();
if (current && current->listener) {
current->listener->Deactivate();
}
current_context = old_context_;
}
} | #include "quiche/quic/core/quic_connection_context.h"
#include <memory>
#include <string>
#include <vector>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/platform/api/quic_thread.h"
using testing::ElementsAre;
namespace quic::test {
namespace {
class TraceCollector : public QuicConnectionTracer {
public:
~TraceCollector() override = default;
void PrintLiteral(const char* literal) override { trace_.push_back(literal); }
void PrintString(absl::string_view s) override {
trace_.push_back(std::string(s));
}
const std::vector<std::string>& trace() const { return trace_; }
private:
std::vector<std::string> trace_;
};
struct FakeConnection {
FakeConnection() { context.tracer = std::make_unique<TraceCollector>(); }
const std::vector<std::string>& trace() const {
return static_cast<const TraceCollector*>(context.tracer.get())->trace();
}
QuicConnectionContext context;
};
void SimpleSwitch() {
FakeConnection connection;
EXPECT_EQ(QuicConnectionContext::Current(), nullptr);
QUIC_TRACELITERAL("before switch: literal");
QUIC_TRACESTRING(std::string("before switch: string"));
QUIC_TRACEPRINTF("%s: %s", "before switch", "printf");
{
QuicConnectionContextSwitcher switcher(&connection.context);
QUIC_TRACELITERAL("literal");
QUIC_TRACESTRING(std::string("string"));
QUIC_TRACEPRINTF("%s", "printf");
}
EXPECT_EQ(QuicConnectionContext::Current(), nullptr);
QUIC_TRACELITERAL("after switch: literal");
QUIC_TRACESTRING(std::string("after switch: string"));
QUIC_TRACEPRINTF("%s: %s", "after switch", "printf");
EXPECT_THAT(connection.trace(), ElementsAre("literal", "string", "printf"));
}
void NestedSwitch() {
FakeConnection outer, inner;
{
QuicConnectionContextSwitcher switcher(&outer.context);
QUIC_TRACELITERAL("outer literal 0");
QUIC_TRACESTRING(std::string("outer string 0"));
QUIC_TRACEPRINTF("%s %s %d", "outer", "printf", 0);
{
QuicConnectionContextSwitcher nested_switcher(&inner.context);
QUIC_TRACELITERAL("inner literal");
QUIC_TRACESTRING(std::string("inner string"));
QUIC_TRACEPRINTF("%s %s", "inner", "printf");
}
QUIC_TRACELITERAL("outer literal 1");
QUIC_TRACESTRING(std::string("outer string 1"));
QUIC_TRACEPRINTF("%s %s %d", "outer", "printf", 1);
}
EXPECT_THAT(outer.trace(), ElementsAre("outer literal 0", "outer string 0",
"outer printf 0", "outer literal 1",
"outer string 1", "outer printf 1"));
EXPECT_THAT(inner.trace(),
ElementsAre("inner literal", "inner string", "inner printf"));
}
void AlternatingSwitch() {
FakeConnection zero, one, two;
for (int i = 0; i < 15; ++i) {
FakeConnection* connection =
((i % 3) == 0) ? &zero : (((i % 3) == 1) ? &one : &two);
QuicConnectionContextSwitcher switcher(&connection->context);
QUIC_TRACEPRINTF("%d", i);
}
EXPECT_THAT(zero.trace(), ElementsAre("0", "3", "6", "9", "12"));
EXPECT_THAT(one.trace(), ElementsAre("1", "4", "7", "10", "13"));
EXPECT_THAT(two.trace(), ElementsAre("2", "5", "8", "11", "14"));
}
typedef void (*ThreadFunction)();
template <ThreadFunction func>
class TestThread : public QuicThread {
public:
TestThread() : QuicThread("TestThread") {}
~TestThread() override = default;
protected:
void Run() override { func(); }
};
template <ThreadFunction func>
void RunInThreads(size_t n_threads) {
using ThreadType = TestThread<func>;
std::vector<ThreadType> threads(n_threads);
for (ThreadType& t : threads) {
t.Start();
}
for (ThreadType& t : threads) {
t.Join();
}
}
class QuicConnectionContextTest : public QuicTest {
protected:
};
TEST_F(QuicConnectionContextTest, NullTracerOK) {
FakeConnection connection;
std::unique_ptr<QuicConnectionTracer> tracer;
{
QuicConnectionContextSwitcher switcher(&connection.context);
QUIC_TRACELITERAL("msg 1 recorded");
}
connection.context.tracer.swap(tracer);
{
QuicConnectionContextSwitcher switcher(&connection.context);
QUIC_TRACELITERAL("msg 2 ignored");
}
EXPECT_THAT(static_cast<TraceCollector*>(tracer.get())->trace(),
ElementsAre("msg 1 recorded"));
}
TEST_F(QuicConnectionContextTest, TestSimpleSwitch) {
RunInThreads<SimpleSwitch>(10);
}
TEST_F(QuicConnectionContextTest, TestNestedSwitch) {
RunInThreads<NestedSwitch>(10);
}
TEST_F(QuicConnectionContextTest, TestAlternatingSwitch) {
RunInThreads<AlternatingSwitch>(10);
}
}
} |
254 | cpp | google/quiche | quic_stream_send_buffer | quiche/quic/core/quic_stream_send_buffer.cc | quiche/quic/core/quic_stream_send_buffer_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_SEND_BUFFER_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_SEND_BUFFER_H_
#include "absl/types/span.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_interval_deque.h"
#include "quiche/quic/core/quic_interval_set.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
namespace test {
class QuicStreamSendBufferPeer;
class QuicStreamPeer;
}
class QuicDataWriter;
struct QUICHE_EXPORT BufferedSlice {
BufferedSlice(quiche::QuicheMemSlice mem_slice, QuicStreamOffset offset);
BufferedSlice(BufferedSlice&& other);
BufferedSlice& operator=(BufferedSlice&& other);
BufferedSlice(const BufferedSlice& other) = delete;
BufferedSlice& operator=(const BufferedSlice& other) = delete;
~BufferedSlice();
QuicInterval<std::size_t> interval() const;
quiche::QuicheMemSlice slice;
QuicStreamOffset offset;
};
struct QUICHE_EXPORT StreamPendingRetransmission {
constexpr StreamPendingRetransmission(QuicStreamOffset offset,
QuicByteCount length)
: offset(offset), length(length) {}
QuicStreamOffset offset;
QuicByteCount length;
bool operator==(const StreamPendingRetransmission& other) const;
};
class QUICHE_EXPORT QuicStreamSendBuffer {
public:
explicit QuicStreamSendBuffer(quiche::QuicheBufferAllocator* allocator);
QuicStreamSendBuffer(const QuicStreamSendBuffer& other) = delete;
QuicStreamSendBuffer(QuicStreamSendBuffer&& other) = delete;
~QuicStreamSendBuffer();
void SaveStreamData(absl::string_view data);
void SaveMemSlice(quiche::QuicheMemSlice slice);
QuicByteCount SaveMemSliceSpan(absl::Span<quiche::QuicheMemSlice> span);
void OnStreamDataConsumed(size_t bytes_consumed);
bool WriteStreamData(QuicStreamOffset offset, QuicByteCount data_length,
QuicDataWriter* writer);
bool OnStreamDataAcked(QuicStreamOffset offset, QuicByteCount data_length,
QuicByteCount* newly_acked_length);
void OnStreamDataLost(QuicStreamOffset offset, QuicByteCount data_length);
void OnStreamDataRetransmitted(QuicStreamOffset offset,
QuicByteCount data_length);
bool HasPendingRetransmission() const;
StreamPendingRetransmission NextPendingRetransmission() const;
bool IsStreamDataOutstanding(QuicStreamOffset offset,
QuicByteCount data_length) const;
size_t size() const;
QuicStreamOffset stream_offset() const { return stream_offset_; }
uint64_t stream_bytes_written() const { return stream_bytes_written_; }
uint64_t stream_bytes_outstanding() const {
return stream_bytes_outstanding_;
}
const QuicIntervalSet<QuicStreamOffset>& bytes_acked() const {
return bytes_acked_;
}
const QuicIntervalSet<QuicStreamOffset>& pending_retransmissions() const {
return pending_retransmissions_;
}
private:
friend class test::QuicStreamSendBufferPeer;
friend class test::QuicStreamPeer;
bool FreeMemSlices(QuicStreamOffset start, QuicStreamOffset end);
void CleanUpBufferedSlices();
QuicStreamOffset current_end_offset_;
QuicIntervalDeque<BufferedSlice> interval_deque_;
QuicStreamOffset stream_offset_;
quiche::QuicheBufferAllocator* allocator_;
uint64_t stream_bytes_written_;
uint64_t stream_bytes_outstanding_;
QuicIntervalSet<QuicStreamOffset> bytes_acked_;
QuicIntervalSet<QuicStreamOffset> pending_retransmissions_;
int32_t write_index_;
};
}
#endif
#include "quiche/quic/core/quic_stream_send_buffer.h"
#include <algorithm>
#include <utility>
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_interval.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
namespace quic {
namespace {
struct CompareOffset {
bool operator()(const BufferedSlice& slice, QuicStreamOffset offset) const {
return slice.offset + slice.slice.length() < offset;
}
};
}
BufferedSlice::BufferedSlice(quiche::QuicheMemSlice mem_slice,
QuicStreamOffset offset)
: slice(std::move(mem_slice)), offset(offset) {}
BufferedSlice::BufferedSlice(BufferedSlice&& other) = default;
BufferedSlice& BufferedSlice::operator=(BufferedSlice&& other) = default;
BufferedSlice::~BufferedSlice() {}
QuicInterval<std::size_t> BufferedSlice::interval() const {
const std::size_t length = slice.length();
return QuicInterval<std::size_t>(offset, offset + length);
}
bool StreamPendingRetransmission::operator==(
const StreamPendingRetransmission& other) const {
return offset == other.offset && length == other.length;
}
QuicStreamSendBuffer::QuicStreamSendBuffer(
quiche::QuicheBufferAllocator* allocator)
: current_end_offset_(0),
stream_offset_(0),
allocator_(allocator),
stream_bytes_written_(0),
stream_bytes_outstanding_(0),
write_index_(-1) {}
QuicStreamSendBuffer::~QuicStreamSendBuffer() {}
void QuicStreamSendBuffer::SaveStreamData(absl::string_view data) {
QUICHE_DCHECK(!data.empty());
const QuicByteCount max_data_slice_size =
GetQuicFlag(quic_send_buffer_max_data_slice_size);
while (!data.empty()) {
auto slice_len = std::min<absl::string_view::size_type>(
data.length(), max_data_slice_size);
auto buffer =
quiche::QuicheBuffer::Copy(allocator_, data.substr(0, slice_len));
SaveMemSlice(quiche::QuicheMemSlice(std::move(buffer)));
data = data.substr(slice_len);
}
}
void QuicStreamSendBuffer::SaveMemSlice(quiche::QuicheMemSlice slice) {
QUIC_DVLOG(2) << "Save slice offset " << stream_offset_ << " length "
<< slice.length();
if (slice.empty()) {
QUIC_BUG(quic_bug_10853_1) << "Try to save empty MemSlice to send buffer.";
return;
}
size_t length = slice.length();
if (interval_deque_.Empty()) {
const QuicStreamOffset end = stream_offset_ + length;
current_end_offset_ = std::max(current_end_offset_, end);
}
BufferedSlice bs = BufferedSlice(std::move(slice), stream_offset_);
interval_deque_.PushBack(std::move(bs));
stream_offset_ += length;
}
QuicByteCount QuicStreamSendBuffer::SaveMemSliceSpan(
absl::Span<quiche::QuicheMemSlice> span) {
QuicByteCount total = 0;
for (quiche::QuicheMemSlice& slice : span) {
if (slice.length() == 0) {
continue;
}
total += slice.length();
SaveMemSlice(std::move(slice));
}
return total;
}
void QuicStreamSendBuffer::OnStreamDataConsumed(size_t bytes_consumed) {
stream_bytes_written_ += bytes_consumed;
stream_bytes_outstanding_ += bytes_consumed;
}
bool QuicStreamSendBuffer::WriteStreamData(QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) {
QUIC_BUG_IF(quic_bug_12823_1, current_end_offset_ < offset)
<< "Tried to write data out of sequence. last_offset_end:"
<< current_end_offset_ << ", offset:" << offset;
for (auto slice_it = interval_deque_.DataAt(offset);
slice_it != interval_deque_.DataEnd(); ++slice_it) {
if (data_length == 0 || offset < slice_it->offset) {
break;
}
QuicByteCount slice_offset = offset - slice_it->offset;
QuicByteCount available_bytes_in_slice =
slice_it->slice.length() - slice_offset;
QuicByteCount copy_length = std::min(data_length, available_bytes_in_slice);
if (!writer->WriteBytes(slice_it->slice.data() + slice_offset,
copy_length)) {
QUIC_BUG(quic_bug_10853_2) << "Writer fails to write.";
return false;
}
offset += copy_length;
data_length -= copy_length;
const QuicStreamOffset new_end =
slice_it->offset + slice_it->slice.length();
current_end_offset_ = std::max(current_end_offset_, new_end);
}
return data_length == 0;
}
bool QuicStreamSendBuffer::OnStreamDataAcked(
QuicStreamOffset offset, QuicByteCount data_length,
QuicByteCount* newly_acked_length) {
*newly_acked_length = 0;
if (data_length == 0) {
return true;
}
if (bytes_acked_.Empty() || offset >= bytes_acked_.rbegin()->max() ||
bytes_acked_.IsDisjoint(
QuicInterval<QuicStreamOffset>(offset, offset + data_length))) {
if (stream_bytes_outstanding_ < data_length) {
return false;
}
bytes_acked_.AddOptimizedForAppend(offset, offset + data_length);
*newly_acked_length = data_length;
stream_bytes_outstanding_ -= data_length;
pending_retransmissions_.Difference(offset, offset + data_length);
if (!FreeMemSlices(offset, offset + data_length)) {
return false;
}
CleanUpBufferedSlices();
return true;
}
if (bytes_acked_.Contains(offset, offset + data_length)) {
return true;
}
QuicIntervalSet<QuicStreamOffset> newly_acked(offset, offset + data_length);
newly_acked.Difference(bytes_acked_);
for (const auto& interval : newly_acked) {
*newly_acked_length += (interval.max() - interval.min());
}
if (stream_bytes_outstanding_ < *newly_acked_length) {
return false;
}
stream_bytes_outstanding_ -= *newly_acked_length;
bytes_acked_.Add(offset, offset + data_length);
pending_retransmissions_.Difference(offset, offset + data_length);
if (newly_acked.Empty()) {
return true;
}
if (!FreeMemSlices(newly_acked.begin()->min(), newly_acked.rbegin()->max())) {
return false;
}
CleanUpBufferedSlices();
return true;
}
void QuicStreamSendBuffer::OnStreamDataLost(QuicStreamOffset offset,
QuicByteCount data_length) {
if (data_length == 0) {
return;
}
QuicIntervalSet<QuicStreamOffset> bytes_lost(offset, offset + data_length);
bytes_lost.Difference(bytes_acked_);
if (bytes_lost.Empty()) {
return;
}
for (const auto& lost : bytes_lost) {
pending_retransmissions_.Add(lost.min(), lost.max());
}
}
void QuicStreamSendBuffer::OnStreamDataRetransmitted(
QuicStreamOffset offset, QuicByteCount data_length) {
if (data_length == 0) {
return;
}
pending_retransmissions_.Difference(offset, offset + data_length);
}
bool QuicStreamSendBuffer::HasPendingRetransmission() const {
return !pending_retransmissions_.Empty();
}
StreamPendingRetransmission QuicStreamSendBuffer::NextPendingRetransmission()
const {
if (HasPendingRetransmission()) {
const auto pending = pending_retransmissions_.begin();
return {pending->min(), pending->max() - pending->min()};
}
QUIC_BUG(quic_bug_10853_3)
<< "NextPendingRetransmission is called unexpected with no "
"pending retransmissions.";
return {0, 0};
}
bool QuicStreamSendBuffer::FreeMemSlices(QuicStreamOffset start,
QuicStreamOffset end) {
auto it = interval_deque_.DataBegin();
if (it == interval_deque_.DataEnd() || it->slice.empty()) {
QUIC_BUG(quic_bug_10853_4)
<< "Trying to ack stream data [" << start << ", " << end << "), "
<< (it == interval_deque_.DataEnd()
? "and there is no outstanding data."
: "and the first slice is empty.");
return false;
}
if (!it->interval().Contains(start)) {
it = std::lower_bound(interval_deque_.DataBegin(),
interval_deque_.DataEnd(), start, CompareOffset());
}
if (it == interval_deque_.DataEnd() || it->slice.empty()) {
QUIC_BUG(quic_bug_10853_5)
<< "Offset " << start << " with iterator offset: " << it->offset
<< (it == interval_deque_.DataEnd() ? " does not exist."
: " has already been acked.");
return false;
}
for (; it != interval_deque_.DataEnd(); ++it) {
if (it->offset >= end) {
break;
}
if (!it->slice.empty() &&
bytes_acked_.Contains(it->offset, it->offset + it->slice.length())) {
it->slice.Reset();
}
}
return true;
}
void QuicStreamSendBuffer::CleanUpBufferedSlices() {
while (!interval_deque_.Empty() &&
interval_deque_.DataBegin()->slice.empty()) {
QUIC_BUG_IF(quic_bug_12823_2,
interval_deque_.DataBegin()->offset > current_end_offset_)
<< "Fail to pop front from interval_deque_. Front element contained "
"a slice whose data has not all be written. Front offset "
<< interval_deque_.DataBegin()->offset << " length "
<< interval_deque_.DataBegin()->slice.length();
interval_deque_.PopFront();
}
}
bool QuicStreamSendBuffer::IsStreamDataOutstanding(
QuicStreamOffset offset, QuicByteCount data_length) const {
return data_length > 0 &&
!bytes_acked_.Contains(offset, offset + data_length);
}
size_t QuicStreamSendBuffer::size() const { return interval_deque_.Size(); }
} | #include "quiche/quic/core/quic_stream_send_buffer.h"
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_stream_send_buffer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/simple_buffer_allocator.h"
namespace quic {
namespace test {
namespace {
class QuicStreamSendBufferTest : public QuicTest {
public:
QuicStreamSendBufferTest() : send_buffer_(&allocator_) {
EXPECT_EQ(0u, send_buffer_.size());
EXPECT_EQ(0u, send_buffer_.stream_bytes_written());
EXPECT_EQ(0u, send_buffer_.stream_bytes_outstanding());
EXPECT_EQ(0u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
std::string data1 = absl::StrCat(
std::string(1536, 'a'), std::string(256, 'b'), std::string(256, 'c'));
quiche::QuicheBuffer buffer1(&allocator_, 1024);
memset(buffer1.data(), 'c', buffer1.size());
quiche::QuicheMemSlice slice1(std::move(buffer1));
quiche::QuicheBuffer buffer2(&allocator_, 768);
memset(buffer2.data(), 'd', buffer2.size());
quiche::QuicheMemSlice slice2(std::move(buffer2));
SetQuicFlag(quic_send_buffer_max_data_slice_size, 1024);
send_buffer_.SaveStreamData(data1);
send_buffer_.SaveMemSlice(std::move(slice1));
EXPECT_TRUE(slice1.empty());
send_buffer_.SaveMemSlice(std::move(slice2));
EXPECT_TRUE(slice2.empty());
EXPECT_EQ(4u, send_buffer_.size());
}
void WriteAllData() {
char buf[4000];
QuicDataWriter writer(4000, buf, quiche::HOST_BYTE_ORDER);
send_buffer_.WriteStreamData(0, 3840u, &writer);
send_buffer_.OnStreamDataConsumed(3840u);
EXPECT_EQ(3840u, send_buffer_.stream_bytes_written());
EXPECT_EQ(3840u, send_buffer_.stream_bytes_outstanding());
}
quiche::SimpleBufferAllocator allocator_;
QuicStreamSendBuffer send_buffer_;
};
TEST_F(QuicStreamSendBufferTest, CopyDataToBuffer) {
char buf[4000];
QuicDataWriter writer(4000, buf, quiche::HOST_BYTE_ORDER);
std::string copy1(1024, 'a');
std::string copy2 =
std::string(512, 'a') + std::string(256, 'b') + std::string(256, 'c');
std::string copy3(1024, 'c');
std::string copy4(768, 'd');
ASSERT_TRUE(send_buffer_.WriteStreamData(0, 1024, &writer));
EXPECT_EQ(copy1, absl::string_view(buf, 1024));
ASSERT_TRUE(send_buffer_.WriteStreamData(1024, 1024, &writer));
EXPECT_EQ(copy2, absl::string_view(buf + 1024, 1024));
ASSERT_TRUE(send_buffer_.WriteStreamData(2048, 1024, &writer));
EXPECT_EQ(copy3, absl::string_view(buf + 2048, 1024));
ASSERT_TRUE(send_buffer_.WriteStreamData(3072, 768, &writer));
EXPECT_EQ(copy4, absl::string_view(buf + 3072, 768));
QuicDataWriter writer2(4000, buf, quiche::HOST_BYTE_ORDER);
std::string copy5 =
std::string(536, 'a') + std::string(256, 'b') + std::string(232, 'c');
ASSERT_TRUE(send_buffer_.WriteStreamData(1000, 1024, &writer2));
EXPECT_EQ(copy5, absl::string_view(buf, 1024));
ASSERT_TRUE(send_buffer_.WriteStreamData(2500, 1024, &writer2));
std::string copy6 = std::string(572, 'c') + std::string(452, 'd');
EXPECT_EQ(copy6, absl::string_view(buf + 1024, 1024));
QuicDataWriter writer3(4000, buf, quiche::HOST_BYTE_ORDER);
EXPECT_FALSE(send_buffer_.WriteStreamData(3000, 1024, &writer3));
EXPECT_QUIC_BUG(send_buffer_.WriteStreamData(0, 4000, &writer3),
"Writer fails to write.");
send_buffer_.OnStreamDataConsumed(3840);
EXPECT_EQ(3840u, send_buffer_.stream_bytes_written());
EXPECT_EQ(3840u, send_buffer_.stream_bytes_outstanding());
}
TEST_F(QuicStreamSendBufferTest,
WriteStreamDataContainsBothRetransmissionAndNewData) {
std::string copy1(1024, 'a');
std::string copy2 =
std::string(512, 'a') + std::string(256, 'b') + std::string(256, 'c');
std::string copy3 = std::string(1024, 'c') + std::string(100, 'd');
char buf[6000];
QuicDataWriter writer(6000, buf, quiche::HOST_BYTE_ORDER);
EXPECT_EQ(0, QuicStreamSendBufferPeer::write_index(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(0, 1024, &writer));
EXPECT_EQ(copy1, absl::string_view(buf, 1024));
EXPECT_EQ(1, QuicStreamSendBufferPeer::write_index(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(0, 2048, &writer));
EXPECT_EQ(copy1 + copy2, absl::string_view(buf + 1024, 2048));
EXPECT_EQ(2048u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(2048, 50, &writer));
EXPECT_EQ(std::string(50, 'c'), absl::string_view(buf + 1024 + 2048, 50));
EXPECT_EQ(3072u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(2048, 1124, &writer));
EXPECT_EQ(copy3, absl::string_view(buf + 1024 + 2048 + 50, 1124));
EXPECT_EQ(3840u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
}
TEST_F(QuicStreamSendBufferTest, RemoveStreamFrame) {
WriteAllData();
QuicByteCount newly_acked_length;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(1024, 1024, &newly_acked_length));
EXPECT_EQ(1024u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2048, 1024, &newly_acked_length));
EXPECT_EQ(1024u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(0, 1024, &newly_acked_length));
EXPECT_EQ(1024u, newly_acked_length);
EXPECT_EQ(1u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(3072, 768, &newly_acked_length));
EXPECT_EQ(768u, newly_acked_length);
EXPECT_EQ(0u, send_buffer_.size());
}
TEST_F(QuicStreamSendBufferTest, RemoveStreamFrameAcrossBoundries) {
WriteAllData();
QuicByteCount newly_acked_length;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2024, 576, &newly_acked_length));
EXPECT_EQ(576u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(0, 1000, &newly_acked_length));
EXPECT_EQ(1000u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(1000, 1024, &newly_acked_length));
EXPECT_EQ(1024u, newly_acked_length);
EXPECT_EQ(2u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2600, 1024, &newly_acked_length));
EXPECT_EQ(1024u, newly_acked_length);
EXPECT_EQ(1u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(3624, 216, &newly_acked_length));
EXPECT_EQ(216u, newly_acked_length);
EXPECT_EQ(0u, send_buffer_.size());
}
TEST_F(QuicStreamSendBufferTest, AckStreamDataMultipleTimes) {
WriteAllData();
QuicByteCount newly_acked_length;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(100, 1500, &newly_acked_length));
EXPECT_EQ(1500u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2000, 500, &newly_acked_length));
EXPECT_EQ(500u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(0, 2600, &newly_acked_length));
EXPECT_EQ(600u, newly_acked_length);
EXPECT_EQ(2u, send_buffer_.size());
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2200, 1640, &newly_acked_length));
EXPECT_EQ(1240u, newly_acked_length);
EXPECT_EQ(0u, send_buffer_.size());
EXPECT_FALSE(send_buffer_.OnStreamDataAcked(4000, 100, &newly_acked_length));
}
TEST_F(QuicStreamSendBufferTest, AckStreamDataOutOfOrder) {
WriteAllData();
QuicByteCount newly_acked_length;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(500, 1000, &newly_acked_length));
EXPECT_EQ(1000u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_EQ(3840u, QuicStreamSendBufferPeer::TotalLength(&send_buffer_));
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(1200, 1000, &newly_acked_length));
EXPECT_EQ(700u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_EQ(2816u, QuicStreamSendBufferPeer::TotalLength(&send_buffer_));
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(2000, 1840, &newly_acked_length));
EXPECT_EQ(1640u, newly_acked_length);
EXPECT_EQ(4u, send_buffer_.size());
EXPECT_EQ(1024u, QuicStreamSendBufferPeer::TotalLength(&send_buffer_));
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(0, 1000, &newly_acked_length));
EXPECT_EQ(500u, newly_acked_length);
EXPECT_EQ(0u, send_buffer_.size());
EXPECT_EQ(0u, QuicStreamSendBufferPeer::TotalLength(&send_buffer_));
}
TEST_F(QuicStreamSendBufferTest, PendingRetransmission) {
WriteAllData();
EXPECT_TRUE(send_buffer_.IsStreamDataOutstanding(0, 3840));
EXPECT_FALSE(send_buffer_.HasPendingRetransmission());
send_buffer_.OnStreamDataLost(0, 1200);
send_buffer_.OnStreamDataLost(1500, 500);
EXPECT_TRUE(send_buffer_.HasPendingRetransmission());
EXPECT_EQ(StreamPendingRetransmission(0, 1200),
send_buffer_.NextPendingRetransmission());
send_buffer_.OnStreamDataRetransmitted(0, 500);
EXPECT_TRUE(send_buffer_.IsStreamDataOutstanding(0, 500));
EXPECT_EQ(StreamPendingRetransmission(500, 700),
send_buffer_.NextPendingRetransmission());
QuicByteCount newly_acked_length = 0;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(500, 700, &newly_acked_length));
EXPECT_FALSE(send_buffer_.IsStreamDataOutstanding(500, 700));
EXPECT_TRUE(send_buffer_.HasPendingRetransmission());
EXPECT_EQ(StreamPendingRetransmission(1500, 500),
send_buffer_.NextPendingRetransmission());
send_buffer_.OnStreamDataRetransmitted(1500, 500);
EXPECT_FALSE(send_buffer_.HasPendingRetransmission());
send_buffer_.OnStreamDataLost(200, 600);
EXPECT_TRUE(send_buffer_.HasPendingRetransmission());
EXPECT_EQ(StreamPendingRetransmission(200, 300),
send_buffer_.NextPendingRetransmission());
EXPECT_FALSE(send_buffer_.IsStreamDataOutstanding(100, 0));
EXPECT_TRUE(send_buffer_.IsStreamDataOutstanding(400, 800));
}
TEST_F(QuicStreamSendBufferTest, EndOffset) {
char buf[4000];
QuicDataWriter writer(4000, buf, quiche::HOST_BYTE_ORDER);
EXPECT_EQ(1024u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(0, 1024, &writer));
EXPECT_EQ(1024u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
ASSERT_TRUE(send_buffer_.WriteStreamData(1024, 512, &writer));
EXPECT_EQ(2048u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
send_buffer_.OnStreamDataConsumed(1024);
QuicByteCount newly_acked_length;
EXPECT_TRUE(send_buffer_.OnStreamDataAcked(0, 1024, &newly_acked_length));
EXPECT_EQ(2048u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
ASSERT_TRUE(
send_buffer_.WriteStreamData(1024 + 512, 3840 - 1024 - 512, &writer));
EXPECT_EQ(3840u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
quiche::QuicheBuffer buffer(&allocator_, 60);
memset(buffer.data(), 'e', buffer.size());
quiche::QuicheMemSlice slice(std::move(buffer));
send_buffer_.SaveMemSlice(std::move(slice));
EXPECT_EQ(3840u, QuicStreamSendBufferPeer::EndOffset(&send_buffer_));
}
TEST_F(QuicStreamSendBufferTest, SaveMemSliceSpan) {
quiche::SimpleBufferAllocator allocator;
QuicStreamSendBuffer send_buffer(&allocator);
std::string data(1024, 'a');
std::vector<quiche::QuicheMemSlice> buffers;
for (size_t i = 0; i < 10; ++i) {
buffers.push_back(MemSliceFromString(data));
}
EXPECT_EQ(10 * 1024u, send_buffer.SaveMemSliceSpan(absl::MakeSpan(buffers)));
EXPECT_EQ(10u, send_buffer.size());
}
TEST_F(QuicStreamSendBufferTest, SaveEmptyMemSliceSpan) {
quiche::SimpleBufferAllocator allocator;
QuicStreamSendBuffer send_buffer(&allocator);
std::string data(1024, 'a');
std::vector<quiche::QuicheMemSlice> buffers;
for (size_t i = 0; i < 10; ++i) {
buffers.push_back(MemSliceFromString(data));
}
EXPECT_EQ(10 * 1024u, send_buffer.SaveMemSliceSpan(absl::MakeSpan(buffers)));
EXPECT_EQ(10u, send_buffer.size());
}
}
}
} |
255 | cpp | google/quiche | quic_unacked_packet_map | quiche/quic/core/quic_unacked_packet_map.cc | quiche/quic/core/quic_unacked_packet_map_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_
#define QUICHE_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_
#include <cstddef>
#include <cstdint>
#include "absl/container/inlined_vector.h"
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_transmission_info.h"
#include "quiche/quic/core/session_notifier_interface.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
namespace test {
class QuicUnackedPacketMapPeer;
}
class QUICHE_EXPORT QuicUnackedPacketMap {
public:
QuicUnackedPacketMap(Perspective perspective);
QuicUnackedPacketMap(const QuicUnackedPacketMap&) = delete;
QuicUnackedPacketMap& operator=(const QuicUnackedPacketMap&) = delete;
~QuicUnackedPacketMap();
void AddSentPacket(SerializedPacket* mutable_packet,
TransmissionType transmission_type, QuicTime sent_time,
bool set_in_flight, bool measure_rtt,
QuicEcnCodepoint ecn_codepoint);
bool IsUnacked(QuicPacketNumber packet_number) const;
bool NotifyFramesAcked(const QuicTransmissionInfo& info,
QuicTime::Delta ack_delay, QuicTime receive_timestamp);
void NotifyFramesLost(const QuicTransmissionInfo& info,
TransmissionType type);
bool RetransmitFrames(const QuicFrames& frames, TransmissionType type);
void RemoveFromInFlight(QuicTransmissionInfo* info);
void RemoveFromInFlight(QuicPacketNumber packet_number);
absl::InlinedVector<QuicPacketNumber, 2> NeuterUnencryptedPackets();
absl::InlinedVector<QuicPacketNumber, 2> NeuterHandshakePackets();
bool HasRetransmittableFrames(QuicPacketNumber packet_number) const;
bool HasRetransmittableFrames(const QuicTransmissionInfo& info) const;
bool HasUnackedRetransmittableFrames() const;
bool empty() const { return unacked_packets_.empty(); }
QuicPacketNumber largest_sent_packet() const { return largest_sent_packet_; }
QuicPacketNumber largest_sent_largest_acked() const {
return largest_sent_largest_acked_;
}
QuicPacketNumber largest_acked() const { return largest_acked_; }
QuicByteCount bytes_in_flight() const { return bytes_in_flight_; }
QuicPacketCount packets_in_flight() const { return packets_in_flight_; }
QuicPacketNumber GetLeastUnacked() const;
using const_iterator =
quiche::QuicheCircularDeque<QuicTransmissionInfo>::const_iterator;
using const_reverse_iterator =
quiche::QuicheCircularDeque<QuicTransmissionInfo>::const_reverse_iterator;
using iterator = quiche::QuicheCircularDeque<QuicTransmissionInfo>::iterator;
const_iterator begin() const { return unacked_packets_.begin(); }
const_iterator end() const { return unacked_packets_.end(); }
const_reverse_iterator rbegin() const { return unacked_packets_.rbegin(); }
const_reverse_iterator rend() const { return unacked_packets_.rend(); }
iterator begin() { return unacked_packets_.begin(); }
iterator end() { return unacked_packets_.end(); }
bool HasInFlightPackets() const;
const QuicTransmissionInfo& GetTransmissionInfo(
QuicPacketNumber packet_number) const;
QuicTransmissionInfo* GetMutableTransmissionInfo(
QuicPacketNumber packet_number);
QuicTime GetLastInFlightPacketSentTime() const;
QuicTime GetLastCryptoPacketSentTime() const;
size_t GetNumUnackedPacketsDebugOnly() const;
bool HasMultipleInFlightPackets() const;
bool HasPendingCryptoPackets() const;
bool HasUnackedStreamData() const {
return session_notifier_->HasUnackedStreamData();
}
void RemoveRetransmittability(QuicTransmissionInfo* info);
void RemoveRetransmittability(QuicPacketNumber packet_number);
void IncreaseLargestAcked(QuicPacketNumber largest_acked);
void MaybeUpdateLargestAckedOfPacketNumberSpace(
PacketNumberSpace packet_number_space, QuicPacketNumber packet_number);
void RemoveObsoletePackets();
void MaybeAggregateAckedStreamFrame(const QuicTransmissionInfo& info,
QuicTime::Delta ack_delay,
QuicTime receive_timestamp);
void NotifyAggregatedStreamFrameAcked(QuicTime::Delta ack_delay);
PacketNumberSpace GetPacketNumberSpace(QuicPacketNumber packet_number) const;
PacketNumberSpace GetPacketNumberSpace(
EncryptionLevel encryption_level) const;
QuicPacketNumber GetLargestAckedOfPacketNumberSpace(
PacketNumberSpace packet_number_space) const;
QuicPacketNumber GetLargestSentRetransmittableOfPacketNumberSpace(
PacketNumberSpace packet_number_space) const;
QuicPacketNumber GetLargestSentPacketOfPacketNumberSpace(
EncryptionLevel encryption_level) const;
QuicTime GetLastInFlightPacketSentTime(
PacketNumberSpace packet_number_space) const;
const QuicTransmissionInfo* GetFirstInFlightTransmissionInfo() const;
const QuicTransmissionInfo* GetFirstInFlightTransmissionInfoOfSpace(
PacketNumberSpace packet_number_space) const;
void SetSessionNotifier(SessionNotifierInterface* session_notifier);
void EnableMultiplePacketNumberSpacesSupport();
int32_t GetLastPacketContent() const;
Perspective perspective() const { return perspective_; }
bool supports_multiple_packet_number_spaces() const {
return supports_multiple_packet_number_spaces_;
}
void ReserveInitialCapacity(size_t initial_capacity) {
unacked_packets_.reserve(initial_capacity);
}
std::string DebugString() const {
return absl::StrCat(
"{size: ", unacked_packets_.size(),
", least_unacked: ", least_unacked_.ToString(),
", largest_sent_packet: ", largest_sent_packet_.ToString(),
", largest_acked: ", largest_acked_.ToString(),
", bytes_in_flight: ", bytes_in_flight_,
", packets_in_flight: ", packets_in_flight_, "}");
}
private:
friend class test::QuicUnackedPacketMapPeer;
bool IsPacketUsefulForMeasuringRtt(QuicPacketNumber packet_number,
const QuicTransmissionInfo& info) const;
bool IsPacketUsefulForCongestionControl(
const QuicTransmissionInfo& info) const;
bool IsPacketUsefulForRetransmittableData(
const QuicTransmissionInfo& info) const;
bool IsPacketUseless(QuicPacketNumber packet_number,
const QuicTransmissionInfo& info) const;
const Perspective perspective_;
QuicPacketNumber largest_sent_packet_;
QuicPacketNumber
largest_sent_retransmittable_packets_[NUM_PACKET_NUMBER_SPACES];
QuicPacketNumber largest_sent_largest_acked_;
QuicPacketNumber largest_acked_;
QuicPacketNumber largest_acked_packets_[NUM_PACKET_NUMBER_SPACES];
quiche::QuicheCircularDeque<QuicTransmissionInfo> unacked_packets_;
QuicPacketNumber least_unacked_;
QuicByteCount bytes_in_flight_;
QuicByteCount
bytes_in_flight_per_packet_number_space_[NUM_PACKET_NUMBER_SPACES];
QuicPacketCount packets_in_flight_;
QuicTime last_inflight_packet_sent_time_;
QuicTime last_inflight_packets_sent_time_[NUM_PACKET_NUMBER_SPACES];
QuicTime last_crypto_packet_sent_time_;
QuicStreamFrame aggregated_stream_frame_;
SessionNotifierInterface* session_notifier_;
bool supports_multiple_packet_number_spaces_;
bool simple_inflight_time_;
};
}
#endif
#include "quiche/quic/core/quic_unacked_packet_map.h"
#include <cstddef>
#include <limits>
#include <type_traits>
#include <utility>
#include "absl/container/inlined_vector.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
namespace quic {
namespace {
bool WillStreamFrameLengthSumWrapAround(QuicPacketLength lhs,
QuicPacketLength rhs) {
static_assert(
std::is_unsigned<QuicPacketLength>::value,
"This function assumes QuicPacketLength is an unsigned integer type.");
return std::numeric_limits<QuicPacketLength>::max() - lhs < rhs;
}
enum QuicFrameTypeBitfield : uint32_t {
kInvalidFrameBitfield = 0,
kPaddingFrameBitfield = 1,
kRstStreamFrameBitfield = 1 << 1,
kConnectionCloseFrameBitfield = 1 << 2,
kGoawayFrameBitfield = 1 << 3,
kWindowUpdateFrameBitfield = 1 << 4,
kBlockedFrameBitfield = 1 << 5,
kStopWaitingFrameBitfield = 1 << 6,
kPingFrameBitfield = 1 << 7,
kCryptoFrameBitfield = 1 << 8,
kHandshakeDoneFrameBitfield = 1 << 9,
kStreamFrameBitfield = 1 << 10,
kAckFrameBitfield = 1 << 11,
kMtuDiscoveryFrameBitfield = 1 << 12,
kNewConnectionIdFrameBitfield = 1 << 13,
kMaxStreamsFrameBitfield = 1 << 14,
kStreamsBlockedFrameBitfield = 1 << 15,
kPathResponseFrameBitfield = 1 << 16,
kPathChallengeFrameBitfield = 1 << 17,
kStopSendingFrameBitfield = 1 << 18,
kMessageFrameBitfield = 1 << 19,
kNewTokenFrameBitfield = 1 << 20,
kRetireConnectionIdFrameBitfield = 1 << 21,
kAckFrequencyFrameBitfield = 1 << 22,
kResetStreamAtFrameBitfield = 1 << 23,
};
QuicFrameTypeBitfield GetFrameTypeBitfield(QuicFrameType type) {
switch (type) {
case PADDING_FRAME:
return kPaddingFrameBitfield;
case RST_STREAM_FRAME:
return kRstStreamFrameBitfield;
case CONNECTION_CLOSE_FRAME:
return kConnectionCloseFrameBitfield;
case GOAWAY_FRAME:
return kGoawayFrameBitfield;
case WINDOW_UPDATE_FRAME:
return kWindowUpdateFrameBitfield;
case BLOCKED_FRAME:
return kBlockedFrameBitfield;
case STOP_WAITING_FRAME:
return kStopWaitingFrameBitfield;
case PING_FRAME:
return kPingFrameBitfield;
case CRYPTO_FRAME:
return kCryptoFrameBitfield;
case HANDSHAKE_DONE_FRAME:
return kHandshakeDoneFrameBitfield;
case STREAM_FRAME:
return kStreamFrameBitfield;
case ACK_FRAME:
return kAckFrameBitfield;
case MTU_DISCOVERY_FRAME:
return kMtuDiscoveryFrameBitfield;
case NEW_CONNECTION_ID_FRAME:
return kNewConnectionIdFrameBitfield;
case MAX_STREAMS_FRAME:
return kMaxStreamsFrameBitfield;
case STREAMS_BLOCKED_FRAME:
return kStreamsBlockedFrameBitfield;
case PATH_RESPONSE_FRAME:
return kPathResponseFrameBitfield;
case PATH_CHALLENGE_FRAME:
return kPathChallengeFrameBitfield;
case STOP_SENDING_FRAME:
return kStopSendingFrameBitfield;
case MESSAGE_FRAME:
return kMessageFrameBitfield;
case NEW_TOKEN_FRAME:
return kNewTokenFrameBitfield;
case RETIRE_CONNECTION_ID_FRAME:
return kRetireConnectionIdFrameBitfield;
case ACK_FREQUENCY_FRAME:
return kAckFrequencyFrameBitfield;
case RESET_STREAM_AT_FRAME:
return kResetStreamAtFrameBitfield;
case NUM_FRAME_TYPES:
QUIC_BUG(quic_bug_10518_1) << "Unexpected frame type";
return kInvalidFrameBitfield;
}
QUIC_BUG(quic_bug_10518_2) << "Unexpected frame type";
return kInvalidFrameBitfield;
}
}
QuicUnackedPacketMap::QuicUnackedPacketMap(Perspective perspective)
: perspective_(perspective),
least_unacked_(FirstSendingPacketNumber()),
bytes_in_flight_(0),
bytes_in_flight_per_packet_number_space_{0, 0, 0},
packets_in_flight_(0),
last_inflight_packet_sent_time_(QuicTime::Zero()),
last_inflight_packets_sent_time_{
{QuicTime::Zero()}, {QuicTime::Zero()}, {QuicTime::Zero()}},
last_crypto_packet_sent_time_(QuicTime::Zero()),
session_notifier_(nullptr),
supports_multiple_packet_number_spaces_(false) {}
QuicUnackedPacketMap::~QuicUnackedPacketMap() {
for (QuicTransmissionInfo& transmission_info : unacked_packets_) {
DeleteFrames(&(transmission_info.retransmittable_frames));
}
}
void QuicUnackedPacketMap::AddSentPacket(SerializedPacket* mutable_packet,
TransmissionType transmission_type,
QuicTime sent_time, bool set_in_flight,
bool measure_rtt,
QuicEcnCodepoint ecn_codepoint) {
const SerializedPacket& packet = *mutable_packet;
QuicPacketNumber packet_number = packet.packet_number;
QuicPacketLength bytes_sent = packet.encrypted_length;
QUIC_BUG_IF(quic_bug_12645_1, largest_sent_packet_.IsInitialized() &&
largest_sent_packet_ >= packet_number)
<< "largest_sent_packet_: " << largest_sent_packet_
<< ", packet_number: " << packet_number;
QUICHE_DCHECK_GE(packet_number, least_unacked_ + unacked_packets_.size());
while (least_unacked_ + unacked_packets_.size() < packet_number) {
unacked_packets_.push_back(QuicTransmissionInfo());
unacked_packets_.back().state = NEVER_SENT;
}
const bool has_crypto_handshake = packet.has_crypto_handshake == IS_HANDSHAKE;
QuicTransmissionInfo info(packet.encryption_level, transmission_type,
sent_time, bytes_sent, has_crypto_handshake,
packet.has_ack_frequency, ecn_codepoint);
info.largest_acked = packet.largest_acked;
largest_sent_largest_acked_.UpdateMax(packet.largest_acked);
if (!measure_rtt) {
QUIC_BUG_IF(quic_bug_12645_2, set_in_flight)
<< "Packet " << mutable_packet->packet_number << ", transmission type "
<< TransmissionTypeToString(mutable_packet->transmission_type)
<< ", retransmittable frames: "
<< QuicFramesToString(mutable_packet->retransmittable_frames)
<< ", nonretransmittable_frames: "
<< QuicFramesToString(mutable_packet->nonretransmittable_frames);
info.state = NOT_CONTRIBUTING_RTT;
}
largest_sent_packet_ = packet_number;
if (set_in_flight) {
const PacketNumberSpace packet_number_space =
GetPacketNumberSpace(info.encryption_level);
bytes_in_flight_ += bytes_sent;
bytes_in_flight_per_packet_number_space_[packet_number_space] += bytes_sent;
++packets_in_flight_;
info.in_flight = true;
largest_sent_retransmittable_packets_[packet_number_space] = packet_number;
last_inflight_packet_sent_time_ = sent_time;
last_inflight_packets_sent_time_[packet_number_space] = sent_time;
}
unacked_packets_.push_back(std::move(info));
if (has_crypto_handshake) {
last_crypto_packet_sent_time_ = sent_time;
}
mutable_packet->retransmittable_frames.swap(
unacked_packets_.back().retransmittable_frames);
}
void QuicUnackedPacketMap::RemoveObsoletePackets() {
while (!unacked_packets_.empty()) {
if (!IsPacketUseless(least_unacked_, unacked_packets_.front())) {
break;
}
DeleteFrames(&unacked_packets_.front().retransmittable_frames);
unacked_packets_.pop_front();
++least_unacked_;
}
}
bool QuicUnackedPacketMap::HasRetransmittableFrames(
QuicPacketNumber packet_number) const {
QUICHE_DCHECK_GE(packet_number, least_unacked_);
QUICHE_DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
return HasRetransmittableFrames(
unacked_packets_[packet_number - least_unacked_]);
}
bool QuicUnackedPacketMap::HasRetransmittableFrames(
const QuicTransmissionInfo& info) const {
if (!QuicUtils::IsAckable(info.state)) {
return false;
}
for (const auto& frame : info.retransmittable_frames) {
if (session_notifier_->IsFrameOutstanding(frame)) {
return true;
}
}
return false;
}
void QuicUnackedPacketMap::RemoveRetransmittability(
QuicTransmissionInfo* info) {
DeleteFrames(&info->retransmittable_frames);
info->first_sent_after_loss.Clear();
}
void QuicUnackedPacketMap::RemoveRetransmittability(
QuicPacketNumber packet_number) {
QUICHE_DCHECK_GE(packet_number, least_unacked_);
QUICHE_DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
QuicTransmissionInfo* info =
&unacked_packets_[packet_number - least_unacked_];
RemoveRetransmittability(info);
}
void QuicUnackedPacketMap::IncreaseLargestAcked(
QuicPacketNumber largest_acked) {
QUICHE_DCHECK(!largest_acked_.IsInitialized() ||
largest_acked_ <= largest_acked);
largest_acked_ = largest_acked;
}
void QuicUnackedPacketMap::MaybeUpdateLargestAckedOfPacketNumberSpace(
PacketNumberSpace packet_number_space, QuicPacketNumber packet_number) {
largest_acked_packets_[packet_number_space].UpdateMax(packet_number);
}
bool QuicUnackedPacketMap::IsPacketUsefulForMeasuringRtt(
QuicPacketNumber packet_number, const QuicTransmissionInfo& info) const {
return QuicUtils::IsAckable(info.state) &&
(!largest_acked_.IsInitialized() || packet_number > largest_acked_) &&
info.state != NOT_CONTRIBUTING_RTT;
}
bool QuicUnackedPacketMap::IsPacketUsefulForCongestionControl(
const QuicTransmissionInfo& info) const {
return info.in_flight;
}
bool QuicUnackedPacketMap::IsPacketUsefulForRetransmittableData(
const QuicTransmissionInfo& info) const {
return info.first_sent_after_loss.IsInitialized() &&
(!largest_acked_.IsInitialized() ||
info.first_sent_after_loss > largest_acked_);
}
bool QuicUnackedPacketMap::IsPacketUseless(
QuicPacketNumber packet_number, const QuicTransmissionInfo& info) const {
return !IsPacketUsefulForMeasuringRtt(packet_number, info) &&
!IsPacketUsefulForCongestionControl(info) &&
!IsPacketUsefulForRetransmittableData(info);
}
bool QuicUnackedPacketMap::IsUnacked(QuicPacketNumber packet_number) const {
if (packet_number < least_unacked_ ||
packet_number >= least_unacked_ + unacked_packets_.size()) {
return false;
}
return !IsPacketUseless(packet_number,
unacked_packets_[packet_number - least_unacked_]);
}
void QuicUnackedPacketMap::RemoveFromInFlight(QuicTransmissionInfo* info) {
if (info->in_flight) {
QUIC_BUG_IF(quic_bug_12645_3, bytes_in_flight_ < info->bytes_sent);
QUIC_BUG_IF(quic_bug_12645_4, packets_in_flight_ == 0);
bytes_in_flight_ -= info->bytes_sent;
--packets_in_flight_;
const PacketNumberSpace packet_number_space =
GetPacketNumberSpace(info->encryption_level);
if (bytes_in_flight_per_packet_number_space_[packet_number_space] <
info->bytes_sent) {
QUIC_BUG(quic_bug_10518_3)
<< "bytes_in_flight: "
<< bytes_in_flight_per_packet_number_space_[packet_number_space]
<< " is smaller than bytes_sent: " << info->bytes_sent
<< " for packet number space: "
<< PacketNumberSpaceToString(packet_number_space);
bytes_in_flight_per_packet_number_space_[packet_number_space] = 0;
} else {
bytes_in_flight_per_packet_number_space_[packet_number_space] -=
info->bytes_sent;
}
if (bytes_in_flight_per_packet_number_space_[packet_number_space] == 0) {
last_inflight_packets_sent_time_[packet_number_space] = QuicTime::Zero();
}
info->in_flight = false;
}
}
void QuicUnackedPacketMap::RemoveFromInFlight(QuicPacketNumber packet_number) {
QUICHE_DCHECK_GE(packet_number, least_unacked_);
QUICHE_DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
QuicTransmissionInfo* info =
&unacked_packets_[packet_number - least_unacked_];
RemoveFromInFlight(info);
}
absl::InlinedVector<QuicPacketNumber, 2>
QuicUnackedPacketMap::NeuterUnencryptedPackets() {
absl::InlinedVector<QuicPacketNumber, 2> neutered_packets;
QuicPacketNumber packet_number = GetLeastUnacked();
for (QuicUnackedPacketMap::iterator it = begin(); it != end();
++it, ++packet_number) {
if (!it->retransmittable_frames.empty() &&
it->encryption_level == ENCRYPTION_INITIAL) {
QUIC_DVLOG(2) << "Neutering unencrypted packet " << packet_number;
RemoveFromInFlight(packet_number);
it->state = NEUTERED;
neutered_packets.push_back(packet_number);
NotifyFramesAcked(*it, QuicTime::Delta::Zero(), QuicTime::Zero());
QUICHE_DCHECK(!HasRetransmittableFrames(*it));
}
}
QUICHE_DCHECK(!supports_multiple_packet_number_spaces_ ||
last_inflight_packets_sent_time_[INITIAL_DATA] ==
QuicTime::Zero());
return neutered_packets;
}
absl::InlinedVector<QuicPacketNumber, 2>
QuicUnackedPacketMap::NeuterHandshakePackets() {
absl::InlinedVector<QuicPacketNumber, 2> neutered_packets;
QuicPacketNumber packet_number = GetLeastUnacked();
for (QuicUnackedPacketMap::iterator it = begin(); it != end();
++it, ++packet_number) {
if (!it->retransmittable_frames.empty() &&
GetPacketNumberSpace(it->encryption_level) == HANDSHAKE_DATA) {
QUIC_DVLOG(2) << "Neutering handshake packet " << packet_number;
RemoveFromInFlight(packet_number);
it->state = NEUTERED;
neutered_packets.push_back(packet_number);
NotifyFramesAcked(*it, QuicTime::Delta::Zero(), QuicTime::Zero());
}
}
QUICHE_DCHECK(!supports_multiple_packet_number_spaces() ||
last_inflight_packets_sent_time_[HANDSHAKE_DATA] ==
QuicTime::Zero());
return neutered_packets;
}
bool QuicUnackedPacketMap::HasInFlightPackets() const {
return bytes_in_flight_ > 0;
}
const QuicTransmissionInfo& QuicUnackedPacketMap::GetTransmissionInfo(
QuicPacketNumber packet_number) const {
return unacked_packets_[packet_number - least_unacked_];
}
QuicTransmissionInfo* QuicUnackedPacketMap::GetMutableTransmissionInfo(
QuicPacketNumber packet_number) {
return &unacked_packets_[packet_number - least_unacked_];
}
QuicTime QuicUnackedPacketMap::GetLastInFlightPacketSentTime() const {
return last_inflight_packet_sent_time_;
}
QuicTime QuicUnackedPacketMap::GetLastCryptoPacketSentTime() const {
return last_crypto_packet_sent_time_;
}
size_t QuicUnackedPacketMap::GetNumUnackedPacketsDebugOnly() const {
size_t unacked_packet_count = 0;
QuicPacketNumber packet_number = least_unacked_;
for (auto it = begin(); it != end(); ++it, ++packet_number) {
if (!IsPacketUseless(packet_number, *it)) {
++unacked_packet_count;
}
}
return unacked_packet_count;
}
bool QuicUnackedPacketMap::HasMultipleInFlightPackets() const {
if (bytes_in_flight_ > kDefaultTCPMSS) {
return true;
}
size_t num_in_flight = 0;
for (auto it = rbegin(); it != rend(); ++it) {
if (it->in_flight) {
++num_in_flight;
}
if (num_in_flight > 1) {
return true;
}
}
return false;
}
bool QuicUnackedPacketMap::HasPendingCryptoPackets() const {
return session_notifier_->HasUnackedCryptoData();
}
bool QuicUnackedPacketMap::HasUnackedRetransmittableFrames() const {
for (auto it = rbegin(); it != rend(); ++it) {
if (it->in_flight && HasRetransmittableFrames(*it)) {
return true;
}
}
return false;
}
QuicPacketNumber QuicUnackedPacketMap::GetLeastUnacked() const {
return least_unacked_;
}
void QuicUnackedPacketMap::SetSessionNotifier(
SessionNotifierInterface* session_notifier) {
session_notifier_ = session_notifier;
}
bool QuicUnackedPacketMap::NotifyFramesAcked(const QuicTransmissionInfo& info,
QuicTime::Delta ack_delay,
QuicTime receive_timestamp) {
if (session_notifier_ == nullptr) {
return false;
}
bool new_data_acked = false;
for (const QuicFrame& frame : info.retransmittable_frames) {
if (session_notifier_->OnFrameAcked(frame, ack_delay, receive_timestamp)) {
new_data_acked = true;
}
}
return new_data_acked;
}
void QuicUnackedPacketMap::NotifyFramesLost(const QuicTransmissionInfo& info,
TransmissionType ) {
for (const QuicFrame& frame : info.retransmittable_frames) {
session_notifier_->OnFrameLost(frame);
}
}
bool QuicUnackedPacketMap::RetransmitFrames(const QuicFrames& frames,
TransmissionType type) {
return session_notifier_->RetransmitFrames(frames, type);
}
void QuicUnackedPacketMap::MaybeAggregateAckedStreamFrame(
const QuicTransmissionInfo& info, QuicTime::Delta ack_delay,
QuicTime receive_timestamp) {
if (session_notifier_ == nullptr) {
return;
}
for (const auto& frame : info.retransmittable_frames) {
const bool can_aggregate =
frame.type == STREAM_FRAME &&
frame.stream_frame.stream_id == aggregated_stream_frame_.stream_id &&
frame.stream_frame.offset == aggregated_stream_frame_.offset +
aggregat | #include "quiche/quic/core/quic_unacked_packet_map.h"
#include <cstddef>
#include <limits>
#include <vector>
#include "absl/base/macros.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/core/quic_transmission_info.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/quic_unacked_packet_map_peer.h"
using testing::_;
using testing::Return;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
const uint32_t kDefaultLength = 1000;
class QuicUnackedPacketMapTest : public QuicTestWithParam<Perspective> {
protected:
QuicUnackedPacketMapTest()
: unacked_packets_(GetParam()),
now_(QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1000)) {
unacked_packets_.SetSessionNotifier(¬ifier_);
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(true));
EXPECT_CALL(notifier_, OnStreamFrameRetransmitted(_))
.Times(testing::AnyNumber());
}
~QuicUnackedPacketMapTest() override {}
SerializedPacket CreateRetransmittablePacket(uint64_t packet_number) {
return CreateRetransmittablePacketForStream(
packet_number, QuicUtils::GetFirstBidirectionalStreamId(
CurrentSupportedVersions()[0].transport_version,
Perspective::IS_CLIENT));
}
SerializedPacket CreateRetransmittablePacketForStream(
uint64_t packet_number, QuicStreamId stream_id) {
SerializedPacket packet(QuicPacketNumber(packet_number),
PACKET_1BYTE_PACKET_NUMBER, nullptr, kDefaultLength,
false, false);
QuicStreamFrame frame;
frame.stream_id = stream_id;
packet.retransmittable_frames.push_back(QuicFrame(frame));
return packet;
}
SerializedPacket CreateNonRetransmittablePacket(uint64_t packet_number) {
return SerializedPacket(QuicPacketNumber(packet_number),
PACKET_1BYTE_PACKET_NUMBER, nullptr, kDefaultLength,
false, false);
}
void VerifyInFlightPackets(uint64_t* packets, size_t num_packets) {
unacked_packets_.RemoveObsoletePackets();
if (num_packets == 0) {
EXPECT_FALSE(unacked_packets_.HasInFlightPackets());
EXPECT_FALSE(unacked_packets_.HasMultipleInFlightPackets());
return;
}
if (num_packets == 1) {
EXPECT_TRUE(unacked_packets_.HasInFlightPackets());
EXPECT_FALSE(unacked_packets_.HasMultipleInFlightPackets());
ASSERT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(packets[0])));
EXPECT_TRUE(
unacked_packets_.GetTransmissionInfo(QuicPacketNumber(packets[0]))
.in_flight);
}
for (size_t i = 0; i < num_packets; ++i) {
ASSERT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(packets[i])));
EXPECT_TRUE(
unacked_packets_.GetTransmissionInfo(QuicPacketNumber(packets[i]))
.in_flight);
}
size_t in_flight_count = 0;
for (auto it = unacked_packets_.begin(); it != unacked_packets_.end();
++it) {
if (it->in_flight) {
++in_flight_count;
}
}
EXPECT_EQ(num_packets, in_flight_count);
}
void VerifyUnackedPackets(uint64_t* packets, size_t num_packets) {
unacked_packets_.RemoveObsoletePackets();
if (num_packets == 0) {
EXPECT_TRUE(unacked_packets_.empty());
EXPECT_FALSE(unacked_packets_.HasUnackedRetransmittableFrames());
return;
}
EXPECT_FALSE(unacked_packets_.empty());
for (size_t i = 0; i < num_packets; ++i) {
EXPECT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(packets[i])))
<< packets[i];
}
EXPECT_EQ(num_packets, unacked_packets_.GetNumUnackedPacketsDebugOnly());
}
void VerifyRetransmittablePackets(uint64_t* packets, size_t num_packets) {
unacked_packets_.RemoveObsoletePackets();
size_t num_retransmittable_packets = 0;
for (auto it = unacked_packets_.begin(); it != unacked_packets_.end();
++it) {
if (unacked_packets_.HasRetransmittableFrames(*it)) {
++num_retransmittable_packets;
}
}
EXPECT_EQ(num_packets, num_retransmittable_packets);
for (size_t i = 0; i < num_packets; ++i) {
EXPECT_TRUE(unacked_packets_.HasRetransmittableFrames(
QuicPacketNumber(packets[i])))
<< " packets[" << i << "]:" << packets[i];
}
}
void UpdatePacketState(uint64_t packet_number, SentPacketState state) {
unacked_packets_
.GetMutableTransmissionInfo(QuicPacketNumber(packet_number))
->state = state;
}
void RetransmitAndSendPacket(uint64_t old_packet_number,
uint64_t new_packet_number,
TransmissionType transmission_type) {
QUICHE_DCHECK(unacked_packets_.HasRetransmittableFrames(
QuicPacketNumber(old_packet_number)));
QuicTransmissionInfo* info = unacked_packets_.GetMutableTransmissionInfo(
QuicPacketNumber(old_packet_number));
QuicStreamId stream_id = QuicUtils::GetFirstBidirectionalStreamId(
CurrentSupportedVersions()[0].transport_version,
Perspective::IS_CLIENT);
for (const auto& frame : info->retransmittable_frames) {
if (frame.type == STREAM_FRAME) {
stream_id = frame.stream_frame.stream_id;
break;
}
}
UpdatePacketState(
old_packet_number,
QuicUtils::RetransmissionTypeToPacketState(transmission_type));
info->first_sent_after_loss = QuicPacketNumber(new_packet_number);
SerializedPacket packet(
CreateRetransmittablePacketForStream(new_packet_number, stream_id));
unacked_packets_.AddSentPacket(&packet, transmission_type, now_, true, true,
ECN_NOT_ECT);
}
QuicUnackedPacketMap unacked_packets_;
QuicTime now_;
StrictMock<MockSessionNotifier> notifier_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicUnackedPacketMapTest,
::testing::ValuesIn({Perspective::IS_CLIENT,
Perspective::IS_SERVER}),
::testing::PrintToStringParamName());
TEST_P(QuicUnackedPacketMapTest, RttOnly) {
SerializedPacket packet(CreateNonRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet, NOT_RETRANSMISSION, now_, false, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(nullptr, 0);
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(1));
VerifyUnackedPackets(nullptr, 0);
VerifyInFlightPackets(nullptr, 0);
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_P(QuicUnackedPacketMapTest, RetransmittableInflightAndRtt) {
SerializedPacket packet(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(unacked, ABSL_ARRAYSIZE(unacked));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(1));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(1));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(1));
VerifyUnackedPackets(nullptr, 0);
VerifyInFlightPackets(nullptr, 0);
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_P(QuicUnackedPacketMapTest, StopRetransmission) {
const QuicStreamId stream_id = 2;
SerializedPacket packet(CreateRetransmittablePacketForStream(1, stream_id));
unacked_packets_.AddSentPacket(&packet, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
uint64_t retransmittable[] = {1};
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_P(QuicUnackedPacketMapTest, StopRetransmissionOnOtherStream) {
const QuicStreamId stream_id = 2;
SerializedPacket packet(CreateRetransmittablePacketForStream(1, stream_id));
unacked_packets_.AddSentPacket(&packet, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
uint64_t retransmittable[] = {1};
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
}
TEST_P(QuicUnackedPacketMapTest, StopRetransmissionAfterRetransmission) {
const QuicStreamId stream_id = 2;
SerializedPacket packet1(CreateRetransmittablePacketForStream(1, stream_id));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
RetransmitAndSendPacket(1, 2, LOSS_RETRANSMISSION);
uint64_t unacked[] = {1, 2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
std::vector<uint64_t> retransmittable = {1, 2};
VerifyRetransmittablePackets(&retransmittable[0], retransmittable.size());
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_P(QuicUnackedPacketMapTest, RetransmittedPacket) {
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
RetransmitAndSendPacket(1, 2, LOSS_RETRANSMISSION);
uint64_t unacked[] = {1, 2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
std::vector<uint64_t> retransmittable = {1, 2};
VerifyRetransmittablePackets(&retransmittable[0], retransmittable.size());
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(1));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(2));
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(2));
uint64_t unacked2[] = {1};
VerifyUnackedPackets(unacked2, ABSL_ARRAYSIZE(unacked2));
VerifyInFlightPackets(unacked2, ABSL_ARRAYSIZE(unacked2));
VerifyRetransmittablePackets(nullptr, 0);
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(1));
VerifyUnackedPackets(nullptr, 0);
VerifyInFlightPackets(nullptr, 0);
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_P(QuicUnackedPacketMapTest, RetransmitThreeTimes) {
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
SerializedPacket packet2(CreateRetransmittablePacket(2));
unacked_packets_.AddSentPacket(&packet2, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1, 2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
uint64_t retransmittable[] = {1, 2};
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(2));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(2));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(2));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(1));
RetransmitAndSendPacket(1, 3, LOSS_RETRANSMISSION);
SerializedPacket packet4(CreateRetransmittablePacket(4));
unacked_packets_.AddSentPacket(&packet4, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked2[] = {1, 3, 4};
VerifyUnackedPackets(unacked2, ABSL_ARRAYSIZE(unacked2));
uint64_t pending2[] = {3, 4};
VerifyInFlightPackets(pending2, ABSL_ARRAYSIZE(pending2));
std::vector<uint64_t> retransmittable2 = {1, 3, 4};
VerifyRetransmittablePackets(&retransmittable2[0], retransmittable2.size());
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(4));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(4));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(4));
RetransmitAndSendPacket(3, 5, LOSS_RETRANSMISSION);
SerializedPacket packet6(CreateRetransmittablePacket(6));
unacked_packets_.AddSentPacket(&packet6, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
std::vector<uint64_t> unacked3 = {3, 5, 6};
std::vector<uint64_t> retransmittable3 = {3, 5, 6};
VerifyUnackedPackets(&unacked3[0], unacked3.size());
VerifyRetransmittablePackets(&retransmittable3[0], retransmittable3.size());
uint64_t pending3[] = {3, 5, 6};
VerifyInFlightPackets(pending3, ABSL_ARRAYSIZE(pending3));
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(6));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(6));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(6));
RetransmitAndSendPacket(5, 7, LOSS_RETRANSMISSION);
std::vector<uint64_t> unacked4 = {3, 5, 7};
std::vector<uint64_t> retransmittable4 = {3, 5, 7};
VerifyUnackedPackets(&unacked4[0], unacked4.size());
VerifyRetransmittablePackets(&retransmittable4[0], retransmittable4.size());
uint64_t pending4[] = {3, 5, 7};
VerifyInFlightPackets(pending4, ABSL_ARRAYSIZE(pending4));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(3));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(5));
uint64_t pending5[] = {7};
VerifyInFlightPackets(pending5, ABSL_ARRAYSIZE(pending5));
}
TEST_P(QuicUnackedPacketMapTest, RetransmitFourTimes) {
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
SerializedPacket packet2(CreateRetransmittablePacket(2));
unacked_packets_.AddSentPacket(&packet2, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked[] = {1, 2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyInFlightPackets(unacked, ABSL_ARRAYSIZE(unacked));
uint64_t retransmittable[] = {1, 2};
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(2));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(2));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(2));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(1));
RetransmitAndSendPacket(1, 3, LOSS_RETRANSMISSION);
uint64_t unacked2[] = {1, 3};
VerifyUnackedPackets(unacked2, ABSL_ARRAYSIZE(unacked2));
uint64_t pending2[] = {3};
VerifyInFlightPackets(pending2, ABSL_ARRAYSIZE(pending2));
std::vector<uint64_t> retransmittable2 = {1, 3};
VerifyRetransmittablePackets(&retransmittable2[0], retransmittable2.size());
RetransmitAndSendPacket(3, 4, PTO_RETRANSMISSION);
SerializedPacket packet5(CreateRetransmittablePacket(5));
unacked_packets_.AddSentPacket(&packet5, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
uint64_t unacked3[] = {1, 3, 4, 5};
VerifyUnackedPackets(unacked3, ABSL_ARRAYSIZE(unacked3));
uint64_t pending3[] = {3, 4, 5};
VerifyInFlightPackets(pending3, ABSL_ARRAYSIZE(pending3));
std::vector<uint64_t> retransmittable3 = {1, 3, 4, 5};
VerifyRetransmittablePackets(&retransmittable3[0], retransmittable3.size());
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(5));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(5));
unacked_packets_.RemoveRetransmittability(QuicPacketNumber(5));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(3));
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(4));
RetransmitAndSendPacket(4, 6, LOSS_RETRANSMISSION);
std::vector<uint64_t> unacked4 = {4, 6};
VerifyUnackedPackets(&unacked4[0], unacked4.size());
uint64_t pending4[] = {6};
VerifyInFlightPackets(pending4, ABSL_ARRAYSIZE(pending4));
std::vector<uint64_t> retransmittable4 = {4, 6};
VerifyRetransmittablePackets(&retransmittable4[0], retransmittable4.size());
}
TEST_P(QuicUnackedPacketMapTest, SendWithGap) {
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
SerializedPacket packet3(CreateRetransmittablePacket(3));
unacked_packets_.AddSentPacket(&packet3, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
RetransmitAndSendPacket(3, 5, LOSS_RETRANSMISSION);
EXPECT_EQ(QuicPacketNumber(1u), unacked_packets_.GetLeastUnacked());
EXPECT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(1)));
EXPECT_FALSE(unacked_packets_.IsUnacked(QuicPacketNumber(2)));
EXPECT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(3)));
EXPECT_FALSE(unacked_packets_.IsUnacked(QuicPacketNumber(4)));
EXPECT_TRUE(unacked_packets_.IsUnacked(QuicPacketNumber(5)));
EXPECT_EQ(QuicPacketNumber(5u), unacked_packets_.largest_sent_packet());
}
TEST_P(QuicUnackedPacketMapTest, AggregateContiguousAckedStreamFrames) {
testing::InSequence s;
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.NotifyAggregatedStreamFrameAcked(QuicTime::Delta::Zero());
QuicTransmissionInfo info1;
QuicStreamFrame stream_frame1(3, false, 0, 100);
info1.retransmittable_frames.push_back(QuicFrame(stream_frame1));
QuicTransmissionInfo info2;
QuicStreamFrame stream_frame2(3, false, 100, 100);
info2.retransmittable_frames.push_back(QuicFrame(stream_frame2));
QuicTransmissionInfo info3;
QuicStreamFrame stream_frame3(3, false, 200, 100);
info3.retransmittable_frames.push_back(QuicFrame(stream_frame3));
QuicTransmissionInfo info4;
QuicStreamFrame stream_frame4(3, true, 300, 0);
info4.retransmittable_frames.push_back(QuicFrame(stream_frame4));
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info1, QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info2, QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info3, QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(1);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info4, QuicTime::Delta::Zero(), QuicTime::Zero());
}
TEST_P(QuicUnackedPacketMapTest, CannotAggregateIfDataLengthOverflow) {
QuicByteCount kMaxAggregatedDataLength =
std::numeric_limits<decltype(QuicStreamFrame().data_length)>::max();
QuicStreamId stream_id = 2;
for (const QuicPacketLength acked_stream_length : {512, 1300}) {
++stream_id;
QuicStreamOffset offset = 0;
QuicByteCount aggregated_data_length = 0;
while (offset < 1e6) {
QuicTransmissionInfo info;
QuicStreamFrame stream_frame(stream_id, false, offset,
acked_stream_length);
info.retransmittable_frames.push_back(QuicFrame(stream_frame));
const QuicStreamFrame& aggregated_stream_frame =
QuicUnackedPacketMapPeer::GetAggregatedStreamFrame(unacked_packets_);
if (aggregated_stream_frame.data_length + acked_stream_length <=
kMaxAggregatedDataLength) {
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info, QuicTime::Delta::Zero(), QuicTime::Zero());
aggregated_data_length += acked_stream_length;
testing::Mock::VerifyAndClearExpectations(¬ifier_);
} else {
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(1);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info, QuicTime::Delta::Zero(), QuicTime::Zero());
aggregated_data_length = acked_stream_length;
testing::Mock::VerifyAndClearExpectations(¬ifier_);
}
EXPECT_EQ(aggregated_data_length, aggregated_stream_frame.data_length);
offset += acked_stream_length;
}
QuicTransmissionInfo info;
QuicStreamFrame stream_frame(stream_id, true, offset, acked_stream_length);
info.retransmittable_frames.push_back(QuicFrame(stream_frame));
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(1);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info, QuicTime::Delta::Zero(), QuicTime::Zero());
testing::Mock::VerifyAndClearExpectations(¬ifier_);
}
}
TEST_P(QuicUnackedPacketMapTest, CannotAggregateAckedControlFrames) {
testing::InSequence s;
QuicWindowUpdateFrame window_update(1, 5, 100);
QuicStreamFrame stream_frame1(3, false, 0, 100);
QuicStreamFrame stream_frame2(3, false, 100, 100);
QuicBlockedFrame blocked(2, 5, 0);
QuicGoAwayFrame go_away(3, QUIC_PEER_GOING_AWAY, 5, "Going away.");
QuicTransmissionInfo info1;
info1.retransmittable_frames.push_back(QuicFrame(window_update));
info1.retransmittable_frames.push_back(QuicFrame(stream_frame1));
info1.retransmittable_frames.push_back(QuicFrame(stream_frame2));
QuicTransmissionInfo info2;
info2.retransmittable_frames.push_back(QuicFrame(blocked));
info2.retransmittable_frames.push_back(QuicFrame(&go_away));
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(1);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info1, QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(3);
unacked_packets_.MaybeAggregateAckedStreamFrame(
info2, QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).Times(0);
unacked_packets_.NotifyAggregatedStreamFrameAcked(QuicTime::Delta::Zero());
}
TEST_P(QuicUnackedPacketMapTest, LargestSentPacketMultiplePacketNumberSpaces) {
unacked_packets_.EnableMultiplePacketNumberSpacesSupport();
EXPECT_FALSE(
unacked_packets_
.GetLargestSentRetransmittableOfPacketNumberSpace(INITIAL_DATA)
.IsInitialized());
SerializedPacket packet1(CreateRetransmittablePacket(1));
packet1.encryption_level = ENCRYPTION_INITIAL;
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
EXPECT_EQ(QuicPacketNumber(1u), unacked_packets_.largest_sent_packet());
EXPECT_EQ(QuicPacketNumber(1),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
INITIAL_DATA));
EXPECT_FALSE(
unacked_packets_
.GetLargestSentRetransmittableOfPacketNumberSpace(HANDSHAKE_DATA)
.IsInitialized());
SerializedPacket packet2(CreateRetransmittablePacket(2));
packet2.encryption_level = ENCRYPTION_HANDSHAKE;
unacked_packets_.AddSentPacket(&packet2, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
EXPECT_EQ(QuicPacketNumber(2u), unacked_packets_.largest_sent_packet());
EXPECT_EQ(QuicPacketNumber(1),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
INITIAL_DATA));
EXPECT_EQ(QuicPacketNumber(2),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
HANDSHAKE_DATA));
EXPECT_FALSE(
unacked_packets_
.GetLargestSentRetransmittableOfPacketNumberSpace(APPLICATION_DATA)
.IsInitialized());
SerializedPacket packet3(CreateRetransmittablePacket(3));
packet3.encryption_level = ENCRYPTION_ZERO_RTT;
unacked_packets_.AddSentPacket(&packet3, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
EXPECT_EQ(QuicPacketNumber(3u), unacked_packets_.largest_sent_packet());
EXPECT_EQ(QuicPacketNumber(1),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
INITIAL_DATA));
EXPECT_EQ(QuicPacketNumber(2),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
HANDSHAKE_DATA));
EXPECT_EQ(QuicPacketNumber(3),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
APPLICATION_DATA));
EXPECT_EQ(QuicPacketNumber(3),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
APPLICATION_DATA));
SerializedPacket packet4(CreateRetransmittablePacket(4));
packet4.encryption_level = ENCRYPTION_FORWARD_SECURE;
unacked_packets_.AddSentPacket(&packet4, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
EXPECT_EQ(QuicPacketNumber(4u), unacked_packets_.largest_sent_packet());
EXPECT_EQ(QuicPacketNumber(1),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
INITIAL_DATA));
EXPECT_EQ(QuicPacketNumber(2),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
HANDSHAKE_DATA));
EXPECT_EQ(QuicPacketNumber(4),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
APPLICATION_DATA));
EXPECT_EQ(QuicPacketNumber(4),
unacked_packets_.GetLargestSentRetransmittableOfPacketNumberSpace(
APPLICATION_DATA));
EXPECT_TRUE(unacked_packets_.GetLastPacketContent() & (1 << STREAM_FRAME));
EXPECT_FALSE(unacked_packets_.GetLastPacketContent() & (1 << ACK_FRAME));
}
TEST_P(QuicUnackedPacketMapTest, ReserveInitialCapacityTest) {
QuicUnackedPacketMap unacked_packets(GetParam());
ASSERT_EQ(QuicUnackedPacketMapPeer::GetCapacity(unacked_packets), 0u);
unacked_packets.ReserveInitialCapacity(16);
QuicStreamId stream_id(1);
SerializedPacket packet(CreateRetransmittablePacketForStream(1, stream_id));
unacked_packets.AddSentPacket(&packet, TransmissionType::NOT_RETRANSMISSION,
now_, true, true, ECN_NOT_ECT);
ASSERT_EQ(QuicUnackedPacketMapPeer::GetCapacity(unacked_packets), 16u);
}
TEST_P(QuicUnackedPacketMapTest, DebugString) {
EXPECT_EQ(unacked_packets_.DebugString(),
"{size: 0, least_unacked: 1, largest_sent_packet: uninitialized, "
"largest_acked: uninitialized, bytes_in_flight: 0, "
"packets_in_flight: 0}");
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
EXPECT_EQ(
unacked_packets_.DebugString(),
"{size: 1, least_unacked: 1, largest_sent_packet: 1, largest_acked: "
"uninitialized, bytes_in_flight: 1000, packets_in_flight: 1}");
SerializedPacket packet2(CreateRetransmittablePacket(2));
unacked_packets_.AddSentPacket(&packet2, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
unacked_packets_.RemoveFromInFlight(QuicPacketNumber(1));
unacked_packets_.IncreaseLargestAcked(QuicPacketNumber(1));
unacked_packets_.RemoveObsoletePackets();
EXPECT_EQ(
unacked_packets_.DebugString(),
"{size: 1, least_unacked: 2, largest_sent_packet: 2, largest_acked: 1, "
"bytes_in_flight: 1000, packets_in_flight: 1}");
}
TEST_P(QuicUnackedPacketMapTest, EcnInfoStored) {
SerializedPacket packet1(CreateRetransmittablePacket(1));
unacked_packets_.AddSentPacket(&packet1, NOT_RETRANSMISSION, now_, true, true,
ECN_NOT_ECT);
SerializedPacket packet2(CreateRetransmittablePacket(2));
unacked_packets_.AddSentPacket(&packet2, NOT_RETRANSMISSION, now_, true, true,
ECN_ECT0);
SerializedPacket packet3(CreateRetransmittablePacket(3));
unacked_packets_.AddSentPacket(&packet3, NOT_RETRANSMISSION, now_, true, true,
ECN_ECT1);
EXPECT_EQ(
unacked_packets_.GetTransmissionInfo(QuicPacketNumber(1)).ecn_codepoint,
ECN_NOT_ECT);
EXPECT_EQ(
unacked_packets_.GetTransmissionInfo(QuicPacketNumber(2)).ecn_codepoint,
ECN_ECT0);
EXPECT_EQ(
unacked_packets_.GetTransmissionInfo(QuicPacketNumber(3)).ecn_codepoint,
ECN_ECT1);
}
}
}
} |
256 | cpp | google/quiche | quic_buffered_packet_store | quiche/quic/core/quic_buffered_packet_store.cc | quiche/quic/core/quic_buffered_packet_store_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_
#define QUICHE_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_
#include <cstdint>
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_stream_send_buffer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_chlo_extractor.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/common/quiche_buffer_allocator.h"
#include "quiche/common/quiche_linked_hash_map.h"
namespace quic {
namespace test {
class QuicBufferedPacketStorePeer;
}
class QUICHE_EXPORT QuicBufferedPacketStore {
public:
enum EnqueuePacketResult {
SUCCESS = 0,
TOO_MANY_PACKETS,
TOO_MANY_CONNECTIONS
};
struct QUICHE_EXPORT BufferedPacket {
BufferedPacket(std::unique_ptr<QuicReceivedPacket> packet,
QuicSocketAddress self_address,
QuicSocketAddress peer_address);
BufferedPacket(BufferedPacket&& other);
BufferedPacket& operator=(BufferedPacket&& other);
~BufferedPacket();
std::unique_ptr<QuicReceivedPacket> packet;
QuicSocketAddress self_address;
QuicSocketAddress peer_address;
};
struct QUICHE_EXPORT BufferedPacketList {
BufferedPacketList();
BufferedPacketList(BufferedPacketList&& other);
BufferedPacketList& operator=(BufferedPacketList&& other);
~BufferedPacketList();
std::list<BufferedPacket> buffered_packets;
QuicTime creation_time;
std::optional<ParsedClientHello> parsed_chlo;
bool ietf_quic;
ParsedQuicVersion version;
TlsChloExtractor tls_chlo_extractor;
ConnectionIdGeneratorInterface* connection_id_generator = nullptr;
};
using BufferedPacketMap =
quiche::QuicheLinkedHashMap<QuicConnectionId, BufferedPacketList,
QuicConnectionIdHash>;
class QUICHE_EXPORT VisitorInterface {
public:
virtual ~VisitorInterface() {}
virtual void OnExpiredPackets(QuicConnectionId connection_id,
BufferedPacketList early_arrived_packets) = 0;
};
QuicBufferedPacketStore(VisitorInterface* visitor, const QuicClock* clock,
QuicAlarmFactory* alarm_factory);
QuicBufferedPacketStore(const QuicBufferedPacketStore&) = delete;
~QuicBufferedPacketStore();
QuicBufferedPacketStore& operator=(const QuicBufferedPacketStore&) = delete;
EnqueuePacketResult EnqueuePacket(
const ReceivedPacketInfo& packet_info,
std::optional<ParsedClientHello> parsed_chlo,
ConnectionIdGeneratorInterface* connection_id_generator);
bool HasBufferedPackets(QuicConnectionId connection_id) const;
bool IngestPacketForTlsChloExtraction(
const QuicConnectionId& connection_id, const ParsedQuicVersion& version,
const QuicReceivedPacket& packet,
std::vector<uint16_t>* out_supported_groups,
std::vector<std::string>* out_alpns, std::string* out_sni,
bool* out_resumption_attempted, bool* out_early_data_attempted,
std::optional<uint8_t>* tls_alert);
BufferedPacketList DeliverPackets(QuicConnectionId connection_id);
void DiscardPackets(QuicConnectionId connection_id);
void DiscardAllPackets();
void OnExpirationTimeout();
BufferedPacketList DeliverPacketsForNextConnection(
QuicConnectionId* connection_id);
bool HasChloForConnection(QuicConnectionId connection_id);
bool HasChlosBuffered() const;
private:
friend class test::QuicBufferedPacketStorePeer;
void MaybeSetExpirationAlarm();
bool ShouldNotBufferPacket(bool is_chlo);
BufferedPacketMap undecryptable_packets_;
const QuicTime::Delta connection_life_span_;
VisitorInterface* visitor_;
const QuicClock* clock_;
std::unique_ptr<QuicAlarm> expiration_alarm_;
quiche::QuicheLinkedHashMap<QuicConnectionId, bool, QuicConnectionIdHash>
connections_with_chlo_;
};
class QUICHE_NO_EXPORT PacketCollector
: public QuicPacketCreator::DelegateInterface,
public QuicStreamFrameDataProducer {
public:
explicit PacketCollector(quiche::QuicheBufferAllocator* allocator)
: send_buffer_(allocator) {}
~PacketCollector() override = default;
void OnSerializedPacket(SerializedPacket serialized_packet) override {
packets_.emplace_back(
new QuicEncryptedPacket(CopyBuffer(serialized_packet),
serialized_packet.encrypted_length, true));
}
QuicPacketBuffer GetPacketBuffer() override {
return {nullptr, nullptr};
}
void OnUnrecoverableError(QuicErrorCode ,
const std::string& ) override {}
bool ShouldGeneratePacket(HasRetransmittableData ,
IsHandshake ) override {
QUICHE_DCHECK(false);
return true;
}
void MaybeBundleOpportunistically(
TransmissionType ) override {
QUICHE_DCHECK(false);
}
QuicByteCount GetFlowControlSendWindowSize(QuicStreamId ) override {
QUICHE_DCHECK(false);
return std::numeric_limits<QuicByteCount>::max();
}
SerializedPacketFate GetSerializedPacketFate(
bool ,
EncryptionLevel ) override {
return SEND_TO_WRITER;
}
WriteStreamDataResult WriteStreamData(QuicStreamId ,
QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override {
if (send_buffer_.WriteStreamData(offset, data_length, writer)) {
return WRITE_SUCCESS;
}
return WRITE_FAILED;
}
bool WriteCryptoData(EncryptionLevel , QuicStreamOffset offset,
QuicByteCount data_length,
QuicDataWriter* writer) override {
return send_buffer_.WriteStreamData(offset, data_length, writer);
}
std::vector<std::unique_ptr<QuicEncryptedPacket>>* packets() {
return &packets_;
}
private:
std::vector<std::unique_ptr<QuicEncryptedPacket>> packets_;
QuicStreamSendBuffer send_buffer_;
};
}
#endif
#include "quiche/quic/core/quic_buffered_packet_store.h"
#include <cstddef>
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
using BufferedPacket = QuicBufferedPacketStore::BufferedPacket;
using BufferedPacketList = QuicBufferedPacketStore::BufferedPacketList;
using EnqueuePacketResult = QuicBufferedPacketStore::EnqueuePacketResult;
static const size_t kDefaultMaxConnectionsInStore = 100;
static const size_t kMaxConnectionsWithoutCHLO =
kDefaultMaxConnectionsInStore / 2;
namespace {
class ConnectionExpireAlarm : public QuicAlarm::DelegateWithoutContext {
public:
explicit ConnectionExpireAlarm(QuicBufferedPacketStore* store)
: connection_store_(store) {}
void OnAlarm() override { connection_store_->OnExpirationTimeout(); }
ConnectionExpireAlarm(const ConnectionExpireAlarm&) = delete;
ConnectionExpireAlarm& operator=(const ConnectionExpireAlarm&) = delete;
private:
QuicBufferedPacketStore* connection_store_;
};
}
BufferedPacket::BufferedPacket(std::unique_ptr<QuicReceivedPacket> packet,
QuicSocketAddress self_address,
QuicSocketAddress peer_address)
: packet(std::move(packet)),
self_address(self_address),
peer_address(peer_address) {}
BufferedPacket::BufferedPacket(BufferedPacket&& other) = default;
BufferedPacket& BufferedPacket::operator=(BufferedPacket&& other) = default;
BufferedPacket::~BufferedPacket() {}
BufferedPacketList::BufferedPacketList()
: creation_time(QuicTime::Zero()),
ietf_quic(false),
version(ParsedQuicVersion::Unsupported()) {}
BufferedPacketList::BufferedPacketList(BufferedPacketList&& other) = default;
BufferedPacketList& BufferedPacketList::operator=(BufferedPacketList&& other) =
default;
BufferedPacketList::~BufferedPacketList() {}
QuicBufferedPacketStore::QuicBufferedPacketStore(
VisitorInterface* visitor, const QuicClock* clock,
QuicAlarmFactory* alarm_factory)
: connection_life_span_(
QuicTime::Delta::FromSeconds(kInitialIdleTimeoutSecs)),
visitor_(visitor),
clock_(clock),
expiration_alarm_(
alarm_factory->CreateAlarm(new ConnectionExpireAlarm(this))) {}
QuicBufferedPacketStore::~QuicBufferedPacketStore() {
if (expiration_alarm_ != nullptr) {
expiration_alarm_->PermanentCancel();
}
}
EnqueuePacketResult QuicBufferedPacketStore::EnqueuePacket(
const ReceivedPacketInfo& packet_info,
std::optional<ParsedClientHello> parsed_chlo,
ConnectionIdGeneratorInterface* connection_id_generator) {
QuicConnectionId connection_id = packet_info.destination_connection_id;
const QuicReceivedPacket& packet = packet_info.packet;
const QuicSocketAddress& self_address = packet_info.self_address;
const QuicSocketAddress& peer_address = packet_info.peer_address;
const ParsedQuicVersion& version = packet_info.version;
const bool ietf_quic = packet_info.form != GOOGLE_QUIC_PACKET;
const bool is_chlo = parsed_chlo.has_value();
QUIC_BUG_IF(quic_bug_12410_1, !GetQuicFlag(quic_allow_chlo_buffering))
<< "Shouldn't buffer packets if disabled via flag.";
QUIC_BUG_IF(quic_bug_12410_2,
is_chlo && connections_with_chlo_.contains(connection_id))
<< "Shouldn't buffer duplicated CHLO on connection " << connection_id;
QUIC_BUG_IF(quic_bug_12410_4, is_chlo && !version.IsKnown())
<< "Should have version for CHLO packet.";
const bool is_first_packet = !undecryptable_packets_.contains(connection_id);
if (is_first_packet) {
if (ShouldNotBufferPacket(is_chlo)) {
return TOO_MANY_CONNECTIONS;
}
undecryptable_packets_.emplace(
std::make_pair(connection_id, BufferedPacketList()));
undecryptable_packets_.back().second.ietf_quic = ietf_quic;
undecryptable_packets_.back().second.version = version;
}
QUICHE_CHECK(undecryptable_packets_.contains(connection_id));
BufferedPacketList& queue =
undecryptable_packets_.find(connection_id)->second;
if (!is_chlo) {
size_t num_non_chlo_packets = connections_with_chlo_.contains(connection_id)
? (queue.buffered_packets.size() - 1)
: queue.buffered_packets.size();
if (num_non_chlo_packets >= kDefaultMaxUndecryptablePackets) {
return TOO_MANY_PACKETS;
}
}
if (queue.buffered_packets.empty()) {
queue.creation_time = clock_->ApproximateNow();
}
BufferedPacket new_entry(std::unique_ptr<QuicReceivedPacket>(packet.Clone()),
self_address, peer_address);
if (is_chlo) {
queue.buffered_packets.push_front(std::move(new_entry));
queue.parsed_chlo = std::move(parsed_chlo);
connections_with_chlo_[connection_id] = false;
queue.version = version;
queue.connection_id_generator = connection_id_generator;
} else {
queue.buffered_packets.push_back(std::move(new_entry));
if (is_first_packet) {
queue.tls_chlo_extractor.IngestPacket(version, packet);
QUIC_BUG_IF(quic_bug_12410_5,
queue.tls_chlo_extractor.HasParsedFullChlo())
<< "First packet in list should not contain full CHLO";
}
}
MaybeSetExpirationAlarm();
return SUCCESS;
}
bool QuicBufferedPacketStore::HasBufferedPackets(
QuicConnectionId connection_id) const {
return undecryptable_packets_.contains(connection_id);
}
bool QuicBufferedPacketStore::HasChlosBuffered() const {
return !connections_with_chlo_.empty();
}
BufferedPacketList QuicBufferedPacketStore::DeliverPackets(
QuicConnectionId connection_id) {
BufferedPacketList packets_to_deliver;
auto it = undecryptable_packets_.find(connection_id);
if (it != undecryptable_packets_.end()) {
packets_to_deliver = std::move(it->second);
undecryptable_packets_.erase(connection_id);
std::list<BufferedPacket> initial_packets;
std::list<BufferedPacket> other_packets;
for (auto& packet : packets_to_deliver.buffered_packets) {
QuicLongHeaderType long_packet_type = INVALID_PACKET_TYPE;
PacketHeaderFormat unused_format;
bool unused_version_flag;
bool unused_use_length_prefix;
QuicVersionLabel unused_version_label;
ParsedQuicVersion unused_parsed_version = UnsupportedQuicVersion();
QuicConnectionId unused_destination_connection_id;
QuicConnectionId unused_source_connection_id;
std::optional<absl::string_view> unused_retry_token;
std::string unused_detailed_error;
QuicErrorCode error_code = QuicFramer::ParsePublicHeaderDispatcher(
*packet.packet, connection_id.length(), &unused_format,
&long_packet_type, &unused_version_flag, &unused_use_length_prefix,
&unused_version_label, &unused_parsed_version,
&unused_destination_connection_id, &unused_source_connection_id,
&unused_retry_token, &unused_detailed_error);
if (error_code == QUIC_NO_ERROR && long_packet_type == INITIAL) {
initial_packets.push_back(std::move(packet));
} else {
other_packets.push_back(std::move(packet));
}
}
initial_packets.splice(initial_packets.end(), other_packets);
packets_to_deliver.buffered_packets = std::move(initial_packets);
}
return packets_to_deliver;
}
void QuicBufferedPacketStore::DiscardPackets(QuicConnectionId connection_id) {
undecryptable_packets_.erase(connection_id);
connections_with_chlo_.erase(connection_id);
}
void QuicBufferedPacketStore::DiscardAllPackets() {
undecryptable_packets_.clear();
connections_with_chlo_.clear();
expiration_alarm_->Cancel();
}
void QuicBufferedPacketStore::OnExpirationTimeout() {
QuicTime expiration_time = clock_->ApproximateNow() - connection_life_span_;
while (!undecryptable_packets_.empty()) {
auto& entry = undecryptable_packets_.front();
if (entry.second.creation_time > expiration_time) {
break;
}
QuicConnectionId connection_id = entry.first;
visitor_->OnExpiredPackets(connection_id, std::move(entry.second));
undecryptable_packets_.pop_front();
connections_with_chlo_.erase(connection_id);
}
if (!undecryptable_packets_.empty()) {
MaybeSetExpirationAlarm();
}
}
void QuicBufferedPacketStore::MaybeSetExpirationAlarm() {
if (!expiration_alarm_->IsSet()) {
expiration_alarm_->Set(clock_->ApproximateNow() + connection_life_span_);
}
}
bool QuicBufferedPacketStore::ShouldNotBufferPacket(bool is_chlo) {
bool is_store_full =
undecryptable_packets_.size() >= kDefaultMaxConnectionsInStore;
if (is_chlo) {
return is_store_full;
}
size_t num_connections_without_chlo =
undecryptable_packets_.size() - connections_with_chlo_.size();
bool reach_non_chlo_limit =
num_connections_without_chlo >= kMaxConnectionsWithoutCHLO;
return is_store_full || reach_non_chlo_limit;
}
BufferedPacketList QuicBufferedPacketStore::DeliverPacketsForNextConnection(
QuicConnectionId* connection_id) {
if (connections_with_chlo_.empty()) {
return BufferedPacketList();
}
*connection_id = connections_with_chlo_.front().first;
connections_with_chlo_.pop_front();
BufferedPacketList packets = DeliverPackets(*connection_id);
QUICHE_DCHECK(!packets.buffered_packets.empty() &&
packets.parsed_chlo.has_value())
<< "Try to deliver connectons without CHLO. # packets:"
<< packets.buffered_packets.size()
<< ", has_parsed_chlo:" << packets.parsed_chlo.has_value();
return packets;
}
bool QuicBufferedPacketStore::HasChloForConnection(
QuicConnectionId connection_id) {
return connections_with_chlo_.contains(connection_id);
}
bool QuicBufferedPacketStore::IngestPacketForTlsChloExtraction(
const QuicConnectionId& connection_id, const ParsedQuicVersion& version,
const QuicReceivedPacket& packet,
std::vector<uint16_t>* out_supported_groups,
std::vector<std::string>* out_alpns, std::string* out_sni,
bool* out_resumption_attempted, bool* out_early_data_attempted,
std::optional<uint8_t>* tls_alert) {
QUICHE_DCHECK_NE(out_alpns, nullptr);
QUICHE_DCHECK_NE(out_sni, nullptr);
QUICHE_DCHECK_NE(tls_alert, nullptr);
QUICHE_DCHECK_EQ(version.handshake_protocol, PROTOCOL_TLS1_3);
auto it = undecryptable_packets_.find(connection_id);
if (it == undecryptable_packets_.end()) {
QUIC_BUG(quic_bug_10838_1)
<< "Cannot ingest packet for unknown connection ID " << connection_id;
return false;
}
it->second.tls_chlo_extractor.IngestPacket(version, packet);
if (!it->second.tls_chlo_extractor.HasParsedFullChlo()) {
*tls_alert = it->second.tls_chlo_extractor.tls_alert();
return false;
}
const TlsChloExtractor& tls_chlo_extractor = it->second.tls_chlo_extractor;
*out_supported_groups = tls_chlo_extractor.supported_groups();
*out_alpns = tls_chlo_extractor.alpns();
*out_sni = tls_chlo_extractor.server_name();
*out_resumption_attempted = tls_chlo_extractor.resumption_attempted();
*out_early_data_attempted = tls_chlo_extractor.early_data_attempted();
return true;
}
} | #include "quiche/quic/core/quic_buffered_packet_store.h"
#include <cstddef>
#include <cstdint>
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/first_flight.h"
#include "quiche/quic/test_tools/mock_clock.h"
#include "quiche/quic/test_tools/mock_connection_id_generator.h"
#include "quiche/quic/test_tools/quic_buffered_packet_store_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
static const size_t kDefaultMaxConnectionsInStore = 100;
static const size_t kMaxConnectionsWithoutCHLO =
kDefaultMaxConnectionsInStore / 2;
namespace test {
namespace {
const std::optional<ParsedClientHello> kNoParsedChlo;
const std::optional<ParsedClientHello> kDefaultParsedChlo =
absl::make_optional<ParsedClientHello>();
using BufferedPacket = QuicBufferedPacketStore::BufferedPacket;
using BufferedPacketList = QuicBufferedPacketStore::BufferedPacketList;
using EnqueuePacketResult = QuicBufferedPacketStore::EnqueuePacketResult;
using ::testing::A;
using ::testing::Conditional;
using ::testing::Each;
using ::testing::ElementsAre;
using ::testing::Ne;
using ::testing::SizeIs;
using ::testing::Truly;
EnqueuePacketResult EnqueuePacketToStore(
QuicBufferedPacketStore& store, QuicConnectionId connection_id,
PacketHeaderFormat form, const QuicReceivedPacket& packet,
QuicSocketAddress self_address, QuicSocketAddress peer_address,
const ParsedQuicVersion& version,
std::optional<ParsedClientHello> parsed_chlo,
ConnectionIdGeneratorInterface* connection_id_generator) {
ReceivedPacketInfo packet_info(self_address, peer_address, packet);
packet_info.destination_connection_id = connection_id;
packet_info.form = form;
packet_info.version = version;
return store.EnqueuePacket(packet_info, std::move(parsed_chlo),
connection_id_generator);
}
class QuicBufferedPacketStoreVisitor
: public QuicBufferedPacketStore::VisitorInterface {
public:
QuicBufferedPacketStoreVisitor() {}
~QuicBufferedPacketStoreVisitor() override {}
void OnExpiredPackets(QuicConnectionId ,
BufferedPacketList early_arrived_packets) override {
last_expired_packet_queue_ = std::move(early_arrived_packets);
}
BufferedPacketList last_expired_packet_queue_;
};
class QuicBufferedPacketStoreTest : public QuicTest {
public:
QuicBufferedPacketStoreTest()
: store_(&visitor_, &clock_, &alarm_factory_),
self_address_(QuicIpAddress::Any6(), 65535),
peer_address_(QuicIpAddress::Any6(), 65535),
packet_content_("some encrypted content"),
packet_time_(QuicTime::Zero() + QuicTime::Delta::FromMicroseconds(42)),
packet_(packet_content_.data(), packet_content_.size(), packet_time_),
invalid_version_(UnsupportedQuicVersion()),
valid_version_(CurrentSupportedVersions().front()) {}
protected:
QuicBufferedPacketStoreVisitor visitor_;
MockClock clock_;
MockAlarmFactory alarm_factory_;
QuicBufferedPacketStore store_;
QuicSocketAddress self_address_;
QuicSocketAddress peer_address_;
std::string packet_content_;
QuicTime packet_time_;
QuicReceivedPacket packet_;
const ParsedQuicVersion invalid_version_;
const ParsedQuicVersion valid_version_;
MockConnectionIdGenerator connection_id_generator_;
};
TEST_F(QuicBufferedPacketStoreTest, SimpleEnqueueAndDeliverPacket) {
QuicConnectionId connection_id = TestConnectionId(1);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id));
auto packets = store_.DeliverPackets(connection_id);
const std::list<BufferedPacket>& queue = packets.buffered_packets;
ASSERT_EQ(1u, queue.size());
ASSERT_FALSE(packets.parsed_chlo.has_value());
EXPECT_EQ(invalid_version_, packets.version);
EXPECT_EQ(packet_content_, queue.front().packet->AsStringPiece());
EXPECT_EQ(packet_time_, queue.front().packet->receipt_time());
EXPECT_EQ(peer_address_, queue.front().peer_address);
EXPECT_EQ(self_address_, queue.front().self_address);
EXPECT_TRUE(store_.DeliverPackets(connection_id).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
}
TEST_F(QuicBufferedPacketStoreTest, DifferentPacketAddressOnOneConnection) {
QuicSocketAddress addr_with_new_port(QuicIpAddress::Any4(), 256);
QuicConnectionId connection_id = TestConnectionId(1);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, addr_with_new_port, invalid_version_,
kNoParsedChlo, nullptr);
std::list<BufferedPacket> queue =
store_.DeliverPackets(connection_id).buffered_packets;
ASSERT_EQ(2u, queue.size());
EXPECT_EQ(peer_address_, queue.front().peer_address);
EXPECT_EQ(addr_with_new_port, queue.back().peer_address);
}
TEST_F(QuicBufferedPacketStoreTest,
EnqueueAndDeliverMultiplePacketsOnMultipleConnections) {
size_t num_connections = 10;
for (uint64_t conn_id = 1; conn_id <= num_connections; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
}
for (uint64_t conn_id = num_connections; conn_id > 0; --conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
std::list<BufferedPacket> queue =
store_.DeliverPackets(connection_id).buffered_packets;
ASSERT_EQ(2u, queue.size());
}
}
TEST_F(QuicBufferedPacketStoreTest,
FailToBufferTooManyPacketsOnExistingConnection) {
size_t num_packets = kDefaultMaxUndecryptablePackets + 1;
QuicConnectionId connection_id = TestConnectionId(1);
EXPECT_EQ(QuicBufferedPacketStore::SUCCESS,
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET,
packet_, self_address_, peer_address_,
valid_version_, kDefaultParsedChlo, nullptr));
for (size_t i = 1; i <= num_packets; ++i) {
EnqueuePacketResult result = EnqueuePacketToStore(
store_, connection_id, GOOGLE_QUIC_PACKET, packet_, self_address_,
peer_address_, invalid_version_, kNoParsedChlo, nullptr);
if (i <= kDefaultMaxUndecryptablePackets) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS, result);
} else {
EXPECT_EQ(EnqueuePacketResult::TOO_MANY_PACKETS, result);
}
}
EXPECT_EQ(kDefaultMaxUndecryptablePackets + 1,
store_.DeliverPackets(connection_id).buffered_packets.size());
}
TEST_F(QuicBufferedPacketStoreTest, ReachNonChloConnectionUpperLimit) {
const size_t kNumConnections = kMaxConnectionsWithoutCHLO + 1;
for (uint64_t conn_id = 1; conn_id <= kNumConnections; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EnqueuePacketResult result = EnqueuePacketToStore(
store_, connection_id, GOOGLE_QUIC_PACKET, packet_, self_address_,
peer_address_, invalid_version_, kNoParsedChlo, nullptr);
if (conn_id <= kMaxConnectionsWithoutCHLO) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS, result);
} else {
EXPECT_EQ(EnqueuePacketResult::TOO_MANY_CONNECTIONS, result);
}
}
for (uint64_t conn_id = 1; conn_id <= kNumConnections; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
std::list<BufferedPacket> queue =
store_.DeliverPackets(connection_id).buffered_packets;
if (conn_id <= kMaxConnectionsWithoutCHLO) {
EXPECT_EQ(1u, queue.size());
} else {
EXPECT_EQ(0u, queue.size());
}
}
}
TEST_F(QuicBufferedPacketStoreTest,
FullStoreFailToBufferDataPacketOnNewConnection) {
size_t num_chlos =
kDefaultMaxConnectionsInStore - kMaxConnectionsWithoutCHLO + 1;
for (uint64_t conn_id = 1; conn_id <= num_chlos; ++conn_id) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, TestConnectionId(conn_id),
GOOGLE_QUIC_PACKET, packet_, self_address_,
peer_address_, valid_version_,
kDefaultParsedChlo, nullptr));
}
for (uint64_t conn_id = num_chlos + 1;
conn_id <= (kDefaultMaxConnectionsInStore + 1); ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EnqueuePacketResult result = EnqueuePacketToStore(
store_, connection_id, GOOGLE_QUIC_PACKET, packet_, self_address_,
peer_address_, valid_version_, kDefaultParsedChlo, nullptr);
if (conn_id <= kDefaultMaxConnectionsInStore) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS, result);
} else {
EXPECT_EQ(EnqueuePacketResult::TOO_MANY_CONNECTIONS, result);
}
}
}
TEST_F(QuicBufferedPacketStoreTest, BasicGeneratorBuffering) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(
store_, TestConnectionId(1), GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, &connection_id_generator_));
QuicConnectionId delivered_conn_id;
BufferedPacketList packet_list =
store_.DeliverPacketsForNextConnection(&delivered_conn_id);
EXPECT_EQ(1u, packet_list.buffered_packets.size());
EXPECT_EQ(delivered_conn_id, TestConnectionId(1));
EXPECT_EQ(&connection_id_generator_, packet_list.connection_id_generator);
}
TEST_F(QuicBufferedPacketStoreTest, NullGeneratorOk) {
EXPECT_EQ(
EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, TestConnectionId(1), GOOGLE_QUIC_PACKET,
packet_, self_address_, peer_address_,
valid_version_, kDefaultParsedChlo, nullptr));
QuicConnectionId delivered_conn_id;
BufferedPacketList packet_list =
store_.DeliverPacketsForNextConnection(&delivered_conn_id);
EXPECT_EQ(1u, packet_list.buffered_packets.size());
EXPECT_EQ(delivered_conn_id, TestConnectionId(1));
EXPECT_EQ(packet_list.connection_id_generator, nullptr);
}
TEST_F(QuicBufferedPacketStoreTest, GeneratorIgnoredForNonChlo) {
MockConnectionIdGenerator generator2;
EXPECT_EQ(EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(
store_, TestConnectionId(1), GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, &connection_id_generator_));
EXPECT_EQ(
EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, TestConnectionId(1), GOOGLE_QUIC_PACKET,
packet_, self_address_, peer_address_,
valid_version_, kNoParsedChlo, &generator2));
QuicConnectionId delivered_conn_id;
BufferedPacketList packet_list =
store_.DeliverPacketsForNextConnection(&delivered_conn_id);
EXPECT_EQ(2u, packet_list.buffered_packets.size());
EXPECT_EQ(delivered_conn_id, TestConnectionId(1));
EXPECT_EQ(packet_list.connection_id_generator, &connection_id_generator_);
}
TEST_F(QuicBufferedPacketStoreTest, EnqueueChloOnTooManyDifferentConnections) {
for (uint64_t conn_id = 1; conn_id <= kMaxConnectionsWithoutCHLO; ++conn_id) {
QuicConnectionId connection_id = TestConnectionId(conn_id);
EXPECT_EQ(
EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, &connection_id_generator_));
}
for (size_t i = kMaxConnectionsWithoutCHLO + 1;
i <= kDefaultMaxConnectionsInStore + 1; ++i) {
QuicConnectionId connection_id = TestConnectionId(i);
EnqueuePacketResult rs =
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, &connection_id_generator_);
if (i <= kDefaultMaxConnectionsInStore) {
EXPECT_EQ(EnqueuePacketResult::SUCCESS, rs);
EXPECT_TRUE(store_.HasChloForConnection(connection_id));
} else {
EXPECT_EQ(EnqueuePacketResult::TOO_MANY_CONNECTIONS, rs);
EXPECT_FALSE(store_.HasChloForConnection(connection_id));
}
}
EXPECT_EQ(EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(
store_, TestConnectionId(1), GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, &connection_id_generator_));
EXPECT_TRUE(store_.HasChloForConnection(TestConnectionId(1)));
QuicConnectionId delivered_conn_id;
for (size_t i = 0;
i < kDefaultMaxConnectionsInStore - kMaxConnectionsWithoutCHLO + 1;
++i) {
BufferedPacketList packet_list =
store_.DeliverPacketsForNextConnection(&delivered_conn_id);
if (i < kDefaultMaxConnectionsInStore - kMaxConnectionsWithoutCHLO) {
EXPECT_EQ(1u, packet_list.buffered_packets.size());
EXPECT_EQ(TestConnectionId(i + kMaxConnectionsWithoutCHLO + 1),
delivered_conn_id);
} else {
EXPECT_EQ(2u, packet_list.buffered_packets.size());
EXPECT_EQ(TestConnectionId(1u), delivered_conn_id);
}
EXPECT_EQ(packet_list.connection_id_generator, &connection_id_generator_);
}
EXPECT_FALSE(store_.HasChlosBuffered());
}
TEST_F(QuicBufferedPacketStoreTest, PacketQueueExpiredBeforeDelivery) {
QuicConnectionId connection_id = TestConnectionId(1);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, &connection_id_generator_);
EXPECT_EQ(
EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, &connection_id_generator_));
QuicConnectionId connection_id2 = TestConnectionId(2);
EXPECT_EQ(
EnqueuePacketResult::SUCCESS,
EnqueuePacketToStore(store_, connection_id2, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, &connection_id_generator_));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicConnectionId connection_id3 = TestConnectionId(3);
QuicSocketAddress another_client_address(QuicIpAddress::Any4(), 255);
EnqueuePacketToStore(store_, connection_id3, GOOGLE_QUIC_PACKET, packet_,
self_address_, another_client_address, valid_version_,
kDefaultParsedChlo, &connection_id_generator_);
clock_.AdvanceTime(
QuicBufferedPacketStorePeer::expiration_alarm(&store_)->deadline() -
clock_.ApproximateNow());
ASSERT_GE(clock_.ApproximateNow(),
QuicBufferedPacketStorePeer::expiration_alarm(&store_)->deadline());
alarm_factory_.FireAlarm(
QuicBufferedPacketStorePeer::expiration_alarm(&store_));
EXPECT_EQ(1u, visitor_.last_expired_packet_queue_.buffered_packets.size());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasBufferedPackets(connection_id2));
ASSERT_EQ(0u, store_.DeliverPackets(connection_id).buffered_packets.size());
ASSERT_EQ(0u, store_.DeliverPackets(connection_id2).buffered_packets.size());
QuicConnectionId delivered_conn_id;
BufferedPacketList packet_list =
store_.DeliverPacketsForNextConnection(&delivered_conn_id);
EXPECT_EQ(connection_id3, delivered_conn_id);
EXPECT_EQ(packet_list.connection_id_generator, &connection_id_generator_);
ASSERT_EQ(1u, packet_list.buffered_packets.size());
EXPECT_EQ(another_client_address,
packet_list.buffered_packets.front().peer_address);
QuicConnectionId connection_id4 = TestConnectionId(4);
EnqueuePacketToStore(store_, connection_id4, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id4, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
clock_.AdvanceTime(
QuicBufferedPacketStorePeer::expiration_alarm(&store_)->deadline() -
clock_.ApproximateNow());
alarm_factory_.FireAlarm(
QuicBufferedPacketStorePeer::expiration_alarm(&store_));
EXPECT_EQ(2u, visitor_.last_expired_packet_queue_.buffered_packets.size());
}
TEST_F(QuicBufferedPacketStoreTest, SimpleDiscardPackets) {
QuicConnectionId connection_id = TestConnectionId(1);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id);
EXPECT_TRUE(store_.DeliverPackets(connection_id).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id);
EXPECT_TRUE(store_.DeliverPackets(connection_id).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
}
TEST_F(QuicBufferedPacketStoreTest, DiscardWithCHLOs) {
QuicConnectionId connection_id = TestConnectionId(1);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kDefaultParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id));
EXPECT_TRUE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id);
EXPECT_TRUE(store_.DeliverPackets(connection_id).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id);
EXPECT_TRUE(store_.DeliverPackets(connection_id).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
}
TEST_F(QuicBufferedPacketStoreTest, MultipleDiscardPackets) {
QuicConnectionId connection_id_1 = TestConnectionId(1);
QuicConnectionId connection_id_2 = TestConnectionId(2);
EnqueuePacketToStore(store_, connection_id_1, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id_1, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, invalid_version_,
kNoParsedChlo, nullptr);
ParsedClientHello parsed_chlo;
parsed_chlo.alpns.push_back("h3");
parsed_chlo.sni = TestHostname();
EnqueuePacketToStore(store_, connection_id_2, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
parsed_chlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id_1));
EXPECT_TRUE(store_.HasBufferedPackets(connection_id_2));
EXPECT_TRUE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id_1);
EXPECT_TRUE(store_.DeliverPackets(connection_id_1).buffered_packets.empty());
EXPECT_FALSE(store_.HasBufferedPackets(connection_id_1));
EXPECT_TRUE(store_.HasChlosBuffered());
EXPECT_TRUE(store_.HasBufferedPackets(connection_id_2));
auto packets = store_.DeliverPackets(connection_id_2);
EXPECT_EQ(1u, packets.buffered_packets.size());
ASSERT_EQ(1u, packets.parsed_chlo->alpns.size());
EXPECT_EQ("h3", packets.parsed_chlo->alpns[0]);
EXPECT_EQ(TestHostname(), packets.parsed_chlo->sni);
EXPECT_EQ(valid_version_, packets.version);
EXPECT_TRUE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id_2);
EXPECT_FALSE(store_.HasChlosBuffered());
}
TEST_F(QuicBufferedPacketStoreTest, DiscardPacketsEmpty) {
QuicConnectionId connection_id = TestConnectionId(11235);
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
store_.DiscardPackets(connection_id);
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.HasChlosBuffered());
}
TEST_F(QuicBufferedPacketStoreTest, IngestPacketForTlsChloExtraction) {
QuicConnectionId connection_id = TestConnectionId(1);
std::vector<std::string> alpns;
std::vector<uint16_t> supported_groups;
std::string sni;
bool resumption_attempted = false;
bool early_data_attempted = false;
QuicConfig config;
std::optional<uint8_t> tls_alert;
EXPECT_FALSE(store_.HasBufferedPackets(connection_id));
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kNoParsedChlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.IngestPacketForTlsChloExtraction(
connection_id, valid_version_, packet_, &supported_groups, &alpns, &sni,
&resumption_attempted, &early_data_attempted, &tls_alert));
store_.DiscardPackets(connection_id);
constexpr auto kCustomParameterId =
static_cast<TransportParameters::TransportParameterId>(0xff33);
std::string kCustomParameterValue(2000, '-');
config.custom_transport_parameters_to_send()[kCustomParameterId] =
kCustomParameterValue;
auto packets = GetFirstFlightOfPackets(valid_version_, config);
ASSERT_EQ(packets.size(), 2u);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, *packets[0],
self_address_, peer_address_, valid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, *packets[1],
self_address_, peer_address_, valid_version_,
kNoParsedChlo, nullptr);
EXPECT_TRUE(store_.HasBufferedPackets(connection_id));
EXPECT_FALSE(store_.IngestPacketForTlsChloExtraction(
connection_id, valid_version_, *packets[0], &supported_groups, &alpns,
&sni, &resumption_attempted, &early_data_attempted, &tls_alert));
EXPECT_TRUE(store_.IngestPacketForTlsChloExtraction(
connection_id, valid_version_, *packets[1], &supported_groups, &alpns,
&sni, &resumption_attempted, &early_data_attempted, &tls_alert));
EXPECT_THAT(alpns, ElementsAre(AlpnForVersion(valid_version_)));
EXPECT_FALSE(supported_groups.empty());
EXPECT_EQ(sni, TestHostname());
EXPECT_FALSE(resumption_attempted);
EXPECT_FALSE(early_data_attempted);
}
TEST_F(QuicBufferedPacketStoreTest, DeliverInitialPacketsFirst) {
QuicConfig config;
QuicConnectionId connection_id = TestConnectionId(1);
constexpr auto kCustomParameterId =
static_cast<TransportParameters::TransportParameterId>(0xff33);
std::string custom_parameter_value(2000, '-');
config.custom_transport_parameters_to_send()[kCustomParameterId] =
custom_parameter_value;
auto initial_packets = GetFirstFlightOfPackets(valid_version_, config);
ASSERT_THAT(initial_packets, SizeIs(2));
EXPECT_THAT(
initial_packets,
Each(Truly([](const std::unique_ptr<QuicReceivedPacket>& packet) {
QuicLongHeaderType long_packet_type = INVALID_PACKET_TYPE;
PacketHeaderFormat unused_format;
bool unused_version_flag;
bool unused_use_length_prefix;
QuicVersionLabel unused_version_label;
ParsedQuicVersion unused_parsed_version = UnsupportedQuicVersion();
QuicConnectionId unused_destination_connection_id;
QuicConnectionId unused_source_connection_id;
std::optional<absl::string_view> unused_retry_token;
std::string unused_detailed_error;
QuicErrorCode error_code = QuicFramer::ParsePublicHeaderDispatcher(
*packet, kQuicDefaultConnectionIdLength, &unused_format,
&long_packet_type, &unused_version_flag, &unused_use_length_prefix,
&unused_version_label, &unused_parsed_version,
&unused_destination_connection_id, &unused_source_connection_id,
&unused_retry_token, &unused_detailed_error);
return error_code == QUIC_NO_ERROR && long_packet_type == INITIAL;
})));
QuicLongHeaderType long_packet_type = INVALID_PACKET_TYPE;
PacketHeaderFormat unused_format;
bool unused_version_flag;
bool unused_use_length_prefix;
QuicVersionLabel unused_version_label;
ParsedQuicVersion unused_parsed_version = UnsupportedQuicVersion();
QuicConnectionId unused_destination_connection_id;
QuicConnectionId unused_source_connection_id;
std::optional<absl::string_view> unused_retry_token;
std::string unused_detailed_error;
QuicErrorCode error_code = QUIC_NO_ERROR;
error_code = QuicFramer::ParsePublicHeaderDispatcher(
packet_, kQuicDefaultConnectionIdLength, &unused_format,
&long_packet_type, &unused_version_flag, &unused_use_length_prefix,
&unused_version_label, &unused_parsed_version,
&unused_destination_connection_id, &unused_source_connection_id,
&unused_retry_token, &unused_detailed_error);
EXPECT_THAT(error_code, IsQuicNoError());
EXPECT_NE(long_packet_type, INITIAL);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET, packet_,
self_address_, peer_address_, valid_version_,
kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET,
*initial_packets[0], self_address_, peer_address_,
valid_version_, kNoParsedChlo, nullptr);
EnqueuePacketToStore(store_, connection_id, GOOGLE_QUIC_PACKET,
*initial_packets[1], self_address_, peer_address_,
valid_version_, kNoParsedChlo, nullptr);
BufferedPacketList delivered_packets = store_.DeliverPackets(connection_id);
EXPECT_THAT(delivered_packets.buffered_packets, SizeIs(3));
QuicLongHeaderType previous_packet_type = INITIAL;
for (const auto& packet : delivered_packets.buffered_packets) {
error_code = QuicFramer::ParsePublicHeaderDispatcher(
*packet.packet, kQuicDefaultConnectionIdLength, &unused_format,
&long_packet_type, &unused_version_flag, &unused_use_length_prefix,
&unused_version_label, &unused_parsed_version,
&unused_destination_connection_id, &unused_source_connection_id,
&unused_retry_token, &unused_detailed_error);
EXPECT_THAT(error_code, IsQuicNoError());
EXPECT_THAT(long_packet_type,
Conditional(previous_packet_type == INITIAL,
A<QuicLongHeaderType>(), Ne(INITIAL)));
previous_packet_type = long_packet_type;
}
}
TEST_F(QuicBufferedPacketStoreTest, BufferedPacketRetainsEcn) {
QuicConnectionId connection_id = TestConnectionId(1);
QuicReceivedPacket ect1_packet(packet_content_.data(), packet_content_.size(),
packet_time_, false, 0, true, nullptr, 0,
false, ECN_ECT1);
EnqueuePacketToStore(stor |
257 | cpp | google/quiche | quic_flow_controller | quiche/quic/core/quic_flow_controller.cc | quiche/quic/core/quic_flow_controller_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_FLOW_CONTROLLER_H_
#define QUICHE_QUIC_CORE_QUIC_FLOW_CONTROLLER_H_
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicFlowControllerPeer;
}
class QuicConnection;
class QuicSession;
inline constexpr float kSessionFlowControlMultiplier = 1.5;
class QUICHE_EXPORT QuicFlowControllerInterface {
public:
virtual ~QuicFlowControllerInterface() {}
virtual void EnsureWindowAtLeast(QuicByteCount window_size) = 0;
};
class QUICHE_EXPORT QuicFlowController : public QuicFlowControllerInterface {
public:
QuicFlowController(QuicSession* session, QuicStreamId id,
bool is_connection_flow_controller,
QuicStreamOffset send_window_offset,
QuicStreamOffset receive_window_offset,
QuicByteCount receive_window_size_limit,
bool should_auto_tune_receive_window,
QuicFlowControllerInterface* session_flow_controller);
QuicFlowController(const QuicFlowController&) = delete;
QuicFlowController(QuicFlowController&&) = default;
QuicFlowController& operator=(const QuicFlowController&) = delete;
~QuicFlowController() override {}
bool UpdateHighestReceivedOffset(QuicStreamOffset new_offset);
void AddBytesConsumed(QuicByteCount bytes_consumed);
void AddBytesSent(QuicByteCount bytes_sent);
bool UpdateSendWindowOffset(QuicStreamOffset new_send_window_offset);
void EnsureWindowAtLeast(QuicByteCount window_size) override;
QuicByteCount SendWindowSize() const;
QuicByteCount receive_window_size() const { return receive_window_size_; }
void MaybeSendBlocked();
bool IsBlocked() const;
bool FlowControlViolation();
void SendWindowUpdate();
QuicByteCount bytes_consumed() const { return bytes_consumed_; }
QuicByteCount bytes_sent() const { return bytes_sent_; }
QuicStreamOffset send_window_offset() const { return send_window_offset_; }
QuicStreamOffset highest_received_byte_offset() const {
return highest_received_byte_offset_;
}
void set_receive_window_size_limit(QuicByteCount receive_window_size_limit) {
QUICHE_DCHECK_GE(receive_window_size_limit, receive_window_size_limit_);
receive_window_size_limit_ = receive_window_size_limit;
}
void UpdateReceiveWindowSize(QuicStreamOffset size);
bool auto_tune_receive_window() { return auto_tune_receive_window_; }
private:
friend class test::QuicFlowControllerPeer;
void MaybeSendWindowUpdate();
void MaybeIncreaseMaxWindowSize();
void UpdateReceiveWindowOffsetAndSendWindowUpdate(
QuicStreamOffset available_window);
void IncreaseWindowSize();
std::string LogLabel();
QuicSession* session_;
QuicConnection* connection_;
QuicStreamId id_;
bool is_connection_flow_controller_;
Perspective perspective_;
QuicByteCount bytes_sent_;
QuicStreamOffset send_window_offset_;
QuicByteCount bytes_consumed_;
QuicStreamOffset highest_received_byte_offset_;
QuicStreamOffset receive_window_offset_;
QuicByteCount receive_window_size_;
QuicByteCount receive_window_size_limit_;
bool auto_tune_receive_window_;
QuicFlowControllerInterface* session_flow_controller_;
QuicByteCount WindowUpdateThreshold();
QuicStreamOffset last_blocked_send_window_offset_;
QuicTime prev_window_update_time_;
};
}
#endif
#include "quiche/quic/core/quic_flow_controller.h"
#include <algorithm>
#include <cstdint>
#include <string>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
#define ENDPOINT \
(perspective_ == Perspective::IS_SERVER ? "Server: " : "Client: ")
std::string QuicFlowController::LogLabel() {
if (is_connection_flow_controller_) {
return "connection";
}
return absl::StrCat("stream ", id_);
}
QuicFlowController::QuicFlowController(
QuicSession* session, QuicStreamId id, bool is_connection_flow_controller,
QuicStreamOffset send_window_offset, QuicStreamOffset receive_window_offset,
QuicByteCount receive_window_size_limit,
bool should_auto_tune_receive_window,
QuicFlowControllerInterface* session_flow_controller)
: session_(session),
connection_(session->connection()),
id_(id),
is_connection_flow_controller_(is_connection_flow_controller),
perspective_(session->perspective()),
bytes_sent_(0),
send_window_offset_(send_window_offset),
bytes_consumed_(0),
highest_received_byte_offset_(0),
receive_window_offset_(receive_window_offset),
receive_window_size_(receive_window_offset),
receive_window_size_limit_(receive_window_size_limit),
auto_tune_receive_window_(should_auto_tune_receive_window),
session_flow_controller_(session_flow_controller),
last_blocked_send_window_offset_(0),
prev_window_update_time_(QuicTime::Zero()) {
QUICHE_DCHECK_LE(receive_window_size_, receive_window_size_limit_);
QUICHE_DCHECK_EQ(
is_connection_flow_controller_,
QuicUtils::GetInvalidStreamId(session_->transport_version()) == id_);
QUIC_DVLOG(1) << ENDPOINT << "Created flow controller for " << LogLabel()
<< ", setting initial receive window offset to: "
<< receive_window_offset_
<< ", max receive window to: " << receive_window_size_
<< ", max receive window limit to: "
<< receive_window_size_limit_
<< ", setting send window offset to: " << send_window_offset_;
}
void QuicFlowController::AddBytesConsumed(QuicByteCount bytes_consumed) {
bytes_consumed_ += bytes_consumed;
QUIC_DVLOG(1) << ENDPOINT << LogLabel() << " consumed " << bytes_consumed_
<< " bytes.";
MaybeSendWindowUpdate();
}
bool QuicFlowController::UpdateHighestReceivedOffset(
QuicStreamOffset new_offset) {
if (new_offset <= highest_received_byte_offset_) {
return false;
}
QUIC_DVLOG(1) << ENDPOINT << LogLabel()
<< " highest byte offset increased from "
<< highest_received_byte_offset_ << " to " << new_offset;
highest_received_byte_offset_ = new_offset;
return true;
}
void QuicFlowController::AddBytesSent(QuicByteCount bytes_sent) {
if (bytes_sent_ + bytes_sent > send_window_offset_) {
QUIC_BUG(quic_bug_10836_1)
<< ENDPOINT << LogLabel() << " Trying to send an extra " << bytes_sent
<< " bytes, when bytes_sent = " << bytes_sent_
<< ", and send_window_offset_ = " << send_window_offset_;
bytes_sent_ = send_window_offset_;
connection_->CloseConnection(
QUIC_FLOW_CONTROL_SENT_TOO_MUCH_DATA,
absl::StrCat(send_window_offset_ - (bytes_sent_ + bytes_sent),
"bytes over send window offset"),
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
return;
}
bytes_sent_ += bytes_sent;
QUIC_DVLOG(1) << ENDPOINT << LogLabel() << " sent " << bytes_sent_
<< " bytes.";
}
bool QuicFlowController::FlowControlViolation() {
if (highest_received_byte_offset_ > receive_window_offset_) {
QUIC_DLOG(INFO) << ENDPOINT << "Flow control violation on " << LogLabel()
<< ", receive window offset: " << receive_window_offset_
<< ", highest received byte offset: "
<< highest_received_byte_offset_;
return true;
}
return false;
}
void QuicFlowController::MaybeIncreaseMaxWindowSize() {
QuicTime now = connection_->clock()->ApproximateNow();
QuicTime prev = prev_window_update_time_;
prev_window_update_time_ = now;
if (!prev.IsInitialized()) {
QUIC_DVLOG(1) << ENDPOINT << "first window update for " << LogLabel();
return;
}
if (!auto_tune_receive_window_) {
return;
}
QuicTime::Delta rtt =
connection_->sent_packet_manager().GetRttStats()->smoothed_rtt();
if (rtt.IsZero()) {
QUIC_DVLOG(1) << ENDPOINT << "rtt zero for " << LogLabel();
return;
}
QuicTime::Delta since_last = now - prev;
QuicTime::Delta two_rtt = 2 * rtt;
if (since_last >= two_rtt) {
return;
}
QuicByteCount old_window = receive_window_size_;
IncreaseWindowSize();
if (receive_window_size_ > old_window) {
QUIC_DVLOG(1) << ENDPOINT << "New max window increase for " << LogLabel()
<< " after " << since_last.ToMicroseconds()
<< " us, and RTT is " << rtt.ToMicroseconds()
<< "us. max wndw: " << receive_window_size_;
if (session_flow_controller_ != nullptr) {
session_flow_controller_->EnsureWindowAtLeast(
kSessionFlowControlMultiplier * receive_window_size_);
}
} else {
QUIC_LOG_FIRST_N(INFO, 1)
<< ENDPOINT << "Max window at limit for " << LogLabel() << " after "
<< since_last.ToMicroseconds() << " us, and RTT is "
<< rtt.ToMicroseconds() << "us. Limit size: " << receive_window_size_;
}
}
void QuicFlowController::IncreaseWindowSize() {
receive_window_size_ *= 2;
receive_window_size_ =
std::min(receive_window_size_, receive_window_size_limit_);
}
QuicByteCount QuicFlowController::WindowUpdateThreshold() {
return receive_window_size_ / 2;
}
void QuicFlowController::MaybeSendWindowUpdate() {
if (!session_->connection()->connected()) {
return;
}
QUICHE_DCHECK_LE(bytes_consumed_, receive_window_offset_);
QuicStreamOffset available_window = receive_window_offset_ - bytes_consumed_;
QuicByteCount threshold = WindowUpdateThreshold();
if (!prev_window_update_time_.IsInitialized()) {
prev_window_update_time_ = connection_->clock()->ApproximateNow();
}
if (available_window >= threshold) {
QUIC_DVLOG(1) << ENDPOINT << "Not sending WindowUpdate for " << LogLabel()
<< ", available window: " << available_window
<< " >= threshold: " << threshold;
return;
}
MaybeIncreaseMaxWindowSize();
UpdateReceiveWindowOffsetAndSendWindowUpdate(available_window);
}
void QuicFlowController::UpdateReceiveWindowOffsetAndSendWindowUpdate(
QuicStreamOffset available_window) {
receive_window_offset_ += (receive_window_size_ - available_window);
QUIC_DVLOG(1) << ENDPOINT << "Sending WindowUpdate frame for " << LogLabel()
<< ", consumed bytes: " << bytes_consumed_
<< ", available window: " << available_window
<< ", and threshold: " << WindowUpdateThreshold()
<< ", and receive window size: " << receive_window_size_
<< ". New receive window offset is: " << receive_window_offset_;
SendWindowUpdate();
}
void QuicFlowController::MaybeSendBlocked() {
if (SendWindowSize() != 0 ||
last_blocked_send_window_offset_ >= send_window_offset_) {
return;
}
QUIC_DLOG(INFO) << ENDPOINT << LogLabel() << " is flow control blocked. "
<< "Send window: " << SendWindowSize()
<< ", bytes sent: " << bytes_sent_
<< ", send limit: " << send_window_offset_;
last_blocked_send_window_offset_ = send_window_offset_;
session_->SendBlocked(id_, last_blocked_send_window_offset_);
}
bool QuicFlowController::UpdateSendWindowOffset(
QuicStreamOffset new_send_window_offset) {
if (new_send_window_offset <= send_window_offset_) {
return false;
}
QUIC_DVLOG(1) << ENDPOINT << "UpdateSendWindowOffset for " << LogLabel()
<< " with new offset " << new_send_window_offset
<< " current offset: " << send_window_offset_
<< " bytes_sent: " << bytes_sent_;
const bool was_previously_blocked = IsBlocked();
send_window_offset_ = new_send_window_offset;
return was_previously_blocked;
}
void QuicFlowController::EnsureWindowAtLeast(QuicByteCount window_size) {
if (receive_window_size_limit_ >= window_size) {
return;
}
QuicStreamOffset available_window = receive_window_offset_ - bytes_consumed_;
IncreaseWindowSize();
UpdateReceiveWindowOffsetAndSendWindowUpdate(available_window);
}
bool QuicFlowController::IsBlocked() const { return SendWindowSize() == 0; }
uint64_t QuicFlowController::SendWindowSize() const {
if (bytes_sent_ > send_window_offset_) {
return 0;
}
return send_window_offset_ - bytes_sent_;
}
void QuicFlowController::UpdateReceiveWindowSize(QuicStreamOffset size) {
QUICHE_DCHECK_LE(size, receive_window_size_limit_);
QUIC_DVLOG(1) << ENDPOINT << "UpdateReceiveWindowSize for " << LogLabel()
<< ": " << size;
if (receive_window_size_ != receive_window_offset_) {
QUIC_BUG(quic_bug_10836_2)
<< "receive_window_size_:" << receive_window_size_
<< " != receive_window_offset:" << receive_window_offset_;
return;
}
receive_window_size_ = size;
receive_window_offset_ = size;
}
void QuicFlowController::SendWindowUpdate() {
QuicStreamId id = id_;
if (is_connection_flow_controller_) {
id = QuicUtils::GetInvalidStreamId(connection_->transport_version());
}
session_->SendWindowUpdate(id, receive_window_offset_);
}
} | #include "quiche/quic/core/quic_flow_controller.h"
#include <memory>
#include <utility>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_flow_controller_peer.h"
#include "quiche/quic/test_tools/quic_sent_packet_manager_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::Invoke;
using testing::StrictMock;
namespace quic {
namespace test {
const int64_t kRtt = 100;
class MockFlowController : public QuicFlowControllerInterface {
public:
MockFlowController() {}
MockFlowController(const MockFlowController&) = delete;
MockFlowController& operator=(const MockFlowController&) = delete;
~MockFlowController() override {}
MOCK_METHOD(void, EnsureWindowAtLeast, (QuicByteCount), (override));
};
class QuicFlowControllerTest : public QuicTest {
public:
void Initialize() {
connection_ = new MockQuicConnection(&helper_, &alarm_factory_,
Perspective::IS_CLIENT);
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
session_ = std::make_unique<StrictMock<MockQuicSession>>(connection_);
flow_controller_ = std::make_unique<QuicFlowController>(
session_.get(), stream_id_, false,
send_window_, receive_window_, kStreamReceiveWindowLimit,
should_auto_tune_receive_window_, &session_flow_controller_);
}
protected:
QuicStreamId stream_id_ = 1234;
QuicByteCount send_window_ = kInitialSessionFlowControlWindowForTest;
QuicByteCount receive_window_ = kInitialSessionFlowControlWindowForTest;
std::unique_ptr<QuicFlowController> flow_controller_;
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
MockQuicConnection* connection_;
std::unique_ptr<StrictMock<MockQuicSession>> session_;
MockFlowController session_flow_controller_;
bool should_auto_tune_receive_window_ = false;
};
TEST_F(QuicFlowControllerTest, SendingBytes) {
Initialize();
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(send_window_, flow_controller_->SendWindowSize());
flow_controller_->AddBytesSent(send_window_ / 2);
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_EQ(send_window_ / 2, flow_controller_->SendWindowSize());
flow_controller_->AddBytesSent(send_window_ / 2);
EXPECT_TRUE(flow_controller_->IsBlocked());
EXPECT_EQ(0u, flow_controller_->SendWindowSize());
EXPECT_CALL(*session_, SendBlocked(_, _)).Times(1);
flow_controller_->MaybeSendBlocked();
EXPECT_TRUE(flow_controller_->UpdateSendWindowOffset(2 * send_window_));
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_EQ(send_window_, flow_controller_->SendWindowSize());
EXPECT_FALSE(flow_controller_->UpdateSendWindowOffset(send_window_ / 10));
EXPECT_EQ(send_window_, flow_controller_->SendWindowSize());
EXPECT_QUIC_BUG(
{
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_FLOW_CONTROL_SENT_TOO_MUCH_DATA, _, _));
flow_controller_->AddBytesSent(send_window_ * 10);
EXPECT_TRUE(flow_controller_->IsBlocked());
EXPECT_EQ(0u, flow_controller_->SendWindowSize());
},
absl::StrCat("Trying to send an extra ", send_window_ * 10, " bytes"));
}
TEST_F(QuicFlowControllerTest, ReceivingBytes) {
Initialize();
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
EXPECT_TRUE(
flow_controller_->UpdateHighestReceivedOffset(1 + receive_window_ / 2));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ((receive_window_ / 2) - 1,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
EXPECT_CALL(*session_, WriteControlFrame(_, _)).Times(1);
flow_controller_->AddBytesConsumed(1 + receive_window_ / 2);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
}
TEST_F(QuicFlowControllerTest, Move) {
Initialize();
flow_controller_->AddBytesSent(send_window_ / 2);
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_EQ(send_window_ / 2, flow_controller_->SendWindowSize());
EXPECT_TRUE(
flow_controller_->UpdateHighestReceivedOffset(1 + receive_window_ / 2));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ((receive_window_ / 2) - 1,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
QuicFlowController flow_controller2(std::move(*flow_controller_));
EXPECT_EQ(send_window_ / 2, flow_controller2.SendWindowSize());
EXPECT_FALSE(flow_controller2.FlowControlViolation());
EXPECT_EQ((receive_window_ / 2) - 1,
QuicFlowControllerPeer::ReceiveWindowSize(&flow_controller2));
}
TEST_F(QuicFlowControllerTest, OnlySendBlockedFrameOncePerOffset) {
Initialize();
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(send_window_, flow_controller_->SendWindowSize());
flow_controller_->AddBytesSent(send_window_);
EXPECT_TRUE(flow_controller_->IsBlocked());
EXPECT_EQ(0u, flow_controller_->SendWindowSize());
EXPECT_CALL(*session_, SendBlocked(_, _)).Times(1);
flow_controller_->MaybeSendBlocked();
EXPECT_CALL(*session_, SendBlocked(_, _)).Times(0);
flow_controller_->MaybeSendBlocked();
flow_controller_->MaybeSendBlocked();
flow_controller_->MaybeSendBlocked();
flow_controller_->MaybeSendBlocked();
flow_controller_->MaybeSendBlocked();
EXPECT_TRUE(flow_controller_->UpdateSendWindowOffset(2 * send_window_));
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_EQ(send_window_, flow_controller_->SendWindowSize());
flow_controller_->AddBytesSent(send_window_);
EXPECT_TRUE(flow_controller_->IsBlocked());
EXPECT_EQ(0u, flow_controller_->SendWindowSize());
EXPECT_CALL(*session_, SendBlocked(_, _)).Times(1);
flow_controller_->MaybeSendBlocked();
}
TEST_F(QuicFlowControllerTest, ReceivingBytesFastIncreasesFlowWindow) {
should_auto_tune_receive_window_ = true;
Initialize();
EXPECT_CALL(*session_, WriteControlFrame(_, _)).Times(1);
EXPECT_TRUE(flow_controller_->auto_tune_receive_window());
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicSentPacketManager* manager =
QuicConnectionPeer::GetSentPacketManager(connection_);
RttStats* rtt_stats = const_cast<RttStats*>(manager->GetRttStats());
rtt_stats->UpdateRtt(QuicTime::Delta::FromMilliseconds(kRtt),
QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
QuicByteCount threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
QuicStreamOffset receive_offset = threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest - receive_offset,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
EXPECT_CALL(
session_flow_controller_,
EnsureWindowAtLeast(kInitialSessionFlowControlWindowForTest * 2 * 1.5));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(2 * kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(2 * kRtt - 1));
receive_offset += threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
QuicByteCount new_threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
EXPECT_GT(new_threshold, threshold);
}
TEST_F(QuicFlowControllerTest, ReceivingBytesFastNoAutoTune) {
Initialize();
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(2)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
EXPECT_FALSE(flow_controller_->auto_tune_receive_window());
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicSentPacketManager* manager =
QuicConnectionPeer::GetSentPacketManager(connection_);
RttStats* rtt_stats = const_cast<RttStats*>(manager->GetRttStats());
rtt_stats->UpdateRtt(QuicTime::Delta::FromMilliseconds(kRtt),
QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
QuicByteCount threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
QuicStreamOffset receive_offset = threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest - receive_offset,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(2 * kRtt - 1));
receive_offset += threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
QuicByteCount new_threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
EXPECT_EQ(new_threshold, threshold);
}
TEST_F(QuicFlowControllerTest, ReceivingBytesNormalStableFlowWindow) {
should_auto_tune_receive_window_ = true;
Initialize();
EXPECT_CALL(*session_, WriteControlFrame(_, _)).Times(1);
EXPECT_TRUE(flow_controller_->auto_tune_receive_window());
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicSentPacketManager* manager =
QuicConnectionPeer::GetSentPacketManager(connection_);
RttStats* rtt_stats = const_cast<RttStats*>(manager->GetRttStats());
rtt_stats->UpdateRtt(QuicTime::Delta::FromMilliseconds(kRtt),
QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
QuicByteCount threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
QuicStreamOffset receive_offset = threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest - receive_offset,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
EXPECT_CALL(
session_flow_controller_,
EnsureWindowAtLeast(kInitialSessionFlowControlWindowForTest * 2 * 1.5));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(2 * kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(2 * kRtt + 1));
receive_offset += threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
QuicByteCount new_threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
EXPECT_EQ(new_threshold, 2 * threshold);
}
TEST_F(QuicFlowControllerTest, ReceivingBytesNormalNoAutoTune) {
Initialize();
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(2)
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
EXPECT_FALSE(flow_controller_->auto_tune_receive_window());
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicSentPacketManager* manager =
QuicConnectionPeer::GetSentPacketManager(connection_);
RttStats* rtt_stats = const_cast<RttStats*>(manager->GetRttStats());
rtt_stats->UpdateRtt(QuicTime::Delta::FromMilliseconds(kRtt),
QuicTime::Delta::Zero(), QuicTime::Zero());
EXPECT_FALSE(flow_controller_->IsBlocked());
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
QuicByteCount threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
QuicStreamOffset receive_offset = threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest - receive_offset,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest,
QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get()));
connection_->AdvanceTime(QuicTime::Delta::FromMilliseconds(2 * kRtt + 1));
receive_offset += threshold + 1;
EXPECT_TRUE(flow_controller_->UpdateHighestReceivedOffset(receive_offset));
flow_controller_->AddBytesConsumed(threshold + 1);
EXPECT_FALSE(flow_controller_->FlowControlViolation());
QuicByteCount new_threshold =
QuicFlowControllerPeer::WindowUpdateThreshold(flow_controller_.get());
EXPECT_EQ(new_threshold, threshold);
}
}
} |
258 | cpp | google/quiche | tls_chlo_extractor | quiche/quic/core/tls_chlo_extractor.cc | quiche/quic/core/tls_chlo_extractor_test.cc | #ifndef QUICHE_QUIC_CORE_TLS_CHLO_EXTRACTOR_H_
#define QUICHE_QUIC_CORE_TLS_CHLO_EXTRACTOR_H_
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
#include "absl/types/span.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_sequencer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT TlsChloExtractor
: public QuicFramerVisitorInterface,
public QuicStreamSequencer::StreamInterface {
public:
TlsChloExtractor();
TlsChloExtractor(const TlsChloExtractor&) = delete;
TlsChloExtractor(TlsChloExtractor&&);
TlsChloExtractor& operator=(const TlsChloExtractor&) = delete;
TlsChloExtractor& operator=(TlsChloExtractor&&);
enum class State : uint8_t {
kInitial = 0,
kParsedFullSinglePacketChlo = 1,
kParsedFullMultiPacketChlo = 2,
kParsedPartialChloFragment = 3,
kUnrecoverableFailure = 4,
};
State state() const { return state_; }
std::vector<std::string> alpns() const { return alpns_; }
std::string server_name() const { return server_name_; }
bool resumption_attempted() const { return resumption_attempted_; }
bool early_data_attempted() const { return early_data_attempted_; }
const std::vector<uint16_t>& supported_groups() const {
return supported_groups_;
}
absl::Span<const uint8_t> client_hello_bytes() const {
return client_hello_bytes_;
}
static std::string StateToString(State state);
void IngestPacket(const ParsedQuicVersion& version,
const QuicReceivedPacket& packet);
bool HasParsedFullChlo() const {
return state_ == State::kParsedFullSinglePacketChlo ||
state_ == State::kParsedFullMultiPacketChlo;
}
std::optional<uint8_t> tls_alert() const {
QUICHE_DCHECK(!tls_alert_.has_value() ||
state_ == State::kUnrecoverableFailure);
return tls_alert_;
}
void OnError(QuicFramer* ) override {}
bool OnProtocolVersionMismatch(ParsedQuicVersion version) override;
void OnPacket() override {}
void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& ) override {}
void OnRetryPacket(QuicConnectionId ,
QuicConnectionId ,
absl::string_view ,
absl::string_view ,
absl::string_view ) override {}
bool OnUnauthenticatedPublicHeader(const QuicPacketHeader& header) override;
bool OnUnauthenticatedHeader(const QuicPacketHeader& ) override {
return true;
}
void OnDecryptedPacket(size_t ,
EncryptionLevel ) override {}
bool OnPacketHeader(const QuicPacketHeader& ) override {
return true;
}
void OnCoalescedPacket(const QuicEncryptedPacket& ) override {}
void OnUndecryptablePacket(const QuicEncryptedPacket& ,
EncryptionLevel ,
bool ) override {}
bool OnStreamFrame(const QuicStreamFrame& ) override { return true; }
bool OnCryptoFrame(const QuicCryptoFrame& frame) override;
bool OnAckFrameStart(QuicPacketNumber ,
QuicTime::Delta ) override {
return true;
}
bool OnAckRange(QuicPacketNumber ,
QuicPacketNumber ) override {
return true;
}
bool OnAckTimestamp(QuicPacketNumber ,
QuicTime ) override {
return true;
}
bool OnAckFrameEnd(
QuicPacketNumber ,
const std::optional<QuicEcnCounts>& ) override {
return true;
}
bool OnStopWaitingFrame(const QuicStopWaitingFrame& ) override {
return true;
}
bool OnPingFrame(const QuicPingFrame& ) override { return true; }
bool OnRstStreamFrame(const QuicRstStreamFrame& ) override {
return true;
}
bool OnConnectionCloseFrame(
const QuicConnectionCloseFrame& ) override {
return true;
}
bool OnNewConnectionIdFrame(
const QuicNewConnectionIdFrame& ) override {
return true;
}
bool OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& ) override {
return true;
}
bool OnNewTokenFrame(const QuicNewTokenFrame& ) override {
return true;
}
bool OnStopSendingFrame(const QuicStopSendingFrame& ) override {
return true;
}
bool OnPathChallengeFrame(const QuicPathChallengeFrame& ) override {
return true;
}
bool OnPathResponseFrame(const QuicPathResponseFrame& ) override {
return true;
}
bool OnGoAwayFrame(const QuicGoAwayFrame& ) override { return true; }
bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& ) override {
return true;
}
bool OnStreamsBlockedFrame(
const QuicStreamsBlockedFrame& ) override {
return true;
}
bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& ) override {
return true;
}
bool OnBlockedFrame(const QuicBlockedFrame& ) override {
return true;
}
bool OnPaddingFrame(const QuicPaddingFrame& ) override {
return true;
}
bool OnMessageFrame(const QuicMessageFrame& ) override {
return true;
}
bool OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& ) override {
return true;
}
bool OnAckFrequencyFrame(const QuicAckFrequencyFrame& ) override {
return true;
}
bool OnResetStreamAtFrame(const QuicResetStreamAtFrame& ) override {
return true;
}
void OnPacketComplete() override {}
bool IsValidStatelessResetToken(
const StatelessResetToken& ) const override {
return true;
}
void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& ) override {}
void OnKeyUpdate(KeyUpdateReason ) override {}
void OnDecryptedFirstPacketInKeyPhase() override {}
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override {
return nullptr;
}
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override {
return nullptr;
}
void OnDataAvailable() override;
void OnFinRead() override {}
void AddBytesConsumed(QuicByteCount ) override {}
void ResetWithError(QuicResetStreamError ) override {}
void OnUnrecoverableError(QuicErrorCode error,
const std::string& details) override;
void OnUnrecoverableError(QuicErrorCode error,
QuicIetfTransportErrorCodes ietf_error,
const std::string& details) override;
QuicStreamId id() const override { return 0; }
ParsedQuicVersion version() const override { return framer_->version(); }
private:
bool MaybeAttemptToParseChloLength();
void AttemptToParseFullChlo();
void HandleUnrecoverableError(const std::string& error_details);
static std::pair<SSL_CTX*, int> GetSharedSslHandles();
void SetupSslHandle();
static TlsChloExtractor* GetInstanceFromSSL(SSL* ssl);
static enum ssl_select_cert_result_t SelectCertCallback(
const SSL_CLIENT_HELLO* client_hello);
static int SetReadSecretCallback(SSL* ssl, enum ssl_encryption_level_t level,
const SSL_CIPHER* cipher,
const uint8_t* secret, size_t secret_length);
static int SetWriteSecretCallback(SSL* ssl, enum ssl_encryption_level_t level,
const SSL_CIPHER* cipher,
const uint8_t* secret,
size_t secret_length);
static int WriteMessageCallback(SSL* ssl, enum ssl_encryption_level_t level,
const uint8_t* data, size_t len);
static int FlushFlightCallback(SSL* ssl);
static int SendAlertCallback(SSL* ssl, enum ssl_encryption_level_t level,
uint8_t desc);
void HandleParsedChlo(const SSL_CLIENT_HELLO* client_hello);
void HandleUnexpectedCallback(const std::string& callback_name);
void SendAlert(uint8_t tls_alert_value);
std::unique_ptr<QuicFramer> framer_;
QuicStreamSequencer crypto_stream_sequencer_;
bssl::UniquePtr<SSL> ssl_;
State state_;
std::string error_details_;
bool parsed_crypto_frame_in_this_packet_;
std::vector<uint16_t> supported_groups_;
std::vector<std::string> alpns_;
std::string server_name_;
bool resumption_attempted_ = false;
bool early_data_attempted_ = false;
std::optional<uint8_t> tls_alert_;
std::vector<uint8_t> client_hello_bytes_;
};
QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
const TlsChloExtractor::State& state);
}
#endif
#include "quiche/quic/core/tls_chlo_extractor.h"
#include <cstdint>
#include <cstring>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/frames/quic_crypto_frame.h"
#include "quiche/quic/core/quic_data_reader.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
namespace {
bool HasExtension(const SSL_CLIENT_HELLO* client_hello, uint16_t extension) {
const uint8_t* unused_extension_bytes;
size_t unused_extension_len;
return 1 == SSL_early_callback_ctx_extension_get(client_hello, extension,
&unused_extension_bytes,
&unused_extension_len);
}
std::vector<uint16_t> GetSupportedGroups(const SSL_CLIENT_HELLO* client_hello) {
const uint8_t* extension_data;
size_t extension_len;
int rv = SSL_early_callback_ctx_extension_get(
client_hello, TLSEXT_TYPE_supported_groups, &extension_data,
&extension_len);
if (rv != 1) {
return {};
}
QuicDataReader named_groups_reader(
reinterpret_cast<const char*>(extension_data), extension_len);
uint16_t named_groups_len;
if (!named_groups_reader.ReadUInt16(&named_groups_len) ||
named_groups_len + sizeof(uint16_t) != extension_len) {
QUIC_CODE_COUNT(quic_chlo_supported_groups_invalid_length);
return {};
}
std::vector<uint16_t> named_groups;
while (!named_groups_reader.IsDoneReading()) {
uint16_t named_group;
if (!named_groups_reader.ReadUInt16(&named_group)) {
QUIC_CODE_COUNT(quic_chlo_supported_groups_odd_length);
QUIC_LOG_FIRST_N(WARNING, 10) << "Failed to read named groups";
break;
}
named_groups.push_back(named_group);
}
return named_groups;
}
}
TlsChloExtractor::TlsChloExtractor()
: crypto_stream_sequencer_(this),
state_(State::kInitial),
parsed_crypto_frame_in_this_packet_(false) {}
TlsChloExtractor::TlsChloExtractor(TlsChloExtractor&& other)
: TlsChloExtractor() {
*this = std::move(other);
}
TlsChloExtractor& TlsChloExtractor::operator=(TlsChloExtractor&& other) {
framer_ = std::move(other.framer_);
if (framer_) {
framer_->set_visitor(this);
}
crypto_stream_sequencer_ = std::move(other.crypto_stream_sequencer_);
crypto_stream_sequencer_.set_stream(this);
ssl_ = std::move(other.ssl_);
if (ssl_) {
std::pair<SSL_CTX*, int> shared_handles = GetSharedSslHandles();
int ex_data_index = shared_handles.second;
const int rv = SSL_set_ex_data(ssl_.get(), ex_data_index, this);
QUICHE_CHECK_EQ(rv, 1) << "Internal allocation failure in SSL_set_ex_data";
}
state_ = other.state_;
error_details_ = std::move(other.error_details_);
parsed_crypto_frame_in_this_packet_ =
other.parsed_crypto_frame_in_this_packet_;
supported_groups_ = std::move(other.supported_groups_);
alpns_ = std::move(other.alpns_);
server_name_ = std::move(other.server_name_);
client_hello_bytes_ = std::move(other.client_hello_bytes_);
return *this;
}
void TlsChloExtractor::IngestPacket(const ParsedQuicVersion& version,
const QuicReceivedPacket& packet) {
if (state_ == State::kUnrecoverableFailure) {
QUIC_DLOG(ERROR) << "Not ingesting packet after unrecoverable error";
return;
}
if (version == UnsupportedQuicVersion()) {
QUIC_DLOG(ERROR) << "Not ingesting packet with unsupported version";
return;
}
if (version.handshake_protocol != PROTOCOL_TLS1_3) {
QUIC_DLOG(ERROR) << "Not ingesting packet with non-TLS version " << version;
return;
}
if (framer_) {
if (!framer_->IsSupportedVersion(version)) {
QUIC_DLOG(ERROR)
<< "Not ingesting packet with version mismatch, expected "
<< framer_->version() << ", got " << version;
return;
}
} else {
framer_ = std::make_unique<QuicFramer>(
ParsedQuicVersionVector{version}, QuicTime::Zero(),
Perspective::IS_SERVER, 0);
framer_->set_visitor(this);
}
parsed_crypto_frame_in_this_packet_ = false;
const bool parse_success = framer_->ProcessPacket(packet);
if (state_ == State::kInitial && parsed_crypto_frame_in_this_packet_) {
state_ = State::kParsedPartialChloFragment;
}
if (!parse_success) {
QUIC_DLOG(ERROR) << "Failed to process packet";
return;
}
}
bool TlsChloExtractor::OnUnauthenticatedPublicHeader(
const QuicPacketHeader& header) {
if (header.form != IETF_QUIC_LONG_HEADER_PACKET) {
QUIC_DLOG(ERROR) << "Not parsing non-long-header packet " << header;
return false;
}
if (header.long_packet_type != INITIAL) {
QUIC_DLOG(ERROR) << "Not parsing non-initial packet " << header;
return false;
}
framer_->SetInitialObfuscators(header.destination_connection_id);
return true;
}
bool TlsChloExtractor::OnProtocolVersionMismatch(ParsedQuicVersion version) {
QUIC_BUG(quic_bug_10855_1) << "Unexpected version mismatch, expected "
<< framer_->version() << ", got " << version;
return false;
}
void TlsChloExtractor::OnUnrecoverableError(QuicErrorCode error,
const std::string& details) {
HandleUnrecoverableError(absl::StrCat(
"Crypto stream error ", QuicErrorCodeToString(error), ": ", details));
}
void TlsChloExtractor::OnUnrecoverableError(
QuicErrorCode error, QuicIetfTransportErrorCodes ietf_error,
const std::string& details) {
HandleUnrecoverableError(absl::StrCat(
"Crypto stream error ", QuicErrorCodeToString(error), "(",
QuicIetfTransportErrorCodeString(ietf_error), "): ", details));
}
bool TlsChloExtractor::OnCryptoFrame(const QuicCryptoFrame& frame) {
if (frame.level != ENCRYPTION_INITIAL) {
QUIC_BUG(quic_bug_10855_2) << "Parsed bad-level CRYPTO frame " << frame;
return false;
}
parsed_crypto_frame_in_this_packet_ = true;
crypto_stream_sequencer_.OnCryptoFrame(frame);
return true;
}
void TlsChloExtractor::OnDataAvailable() {
SetupSslHandle();
struct iovec iov;
while (crypto_stream_sequencer_.GetReadableRegion(&iov)) {
const int rv = SSL_provide_quic_data(
ssl_.get(), ssl_encryption_initial,
reinterpret_cast<const uint8_t*>(iov.iov_base), iov.iov_len);
if (rv != 1) {
HandleUnrecoverableError("SSL_provide_quic_data failed");
return;
}
crypto_stream_sequencer_.MarkConsumed(iov.iov_len);
}
(void)SSL_do_handshake(ssl_.get());
}
TlsChloExtractor* TlsChloExtractor::GetInstanceFromSSL(SSL* ssl) {
std::pair<SSL_CTX*, int> shared_handles = GetSharedSslHandles();
int ex_data_index = shared_handles.second;
return reinterpret_cast<TlsChloExtractor*>(
SSL_get_ex_data(ssl, ex_data_index));
}
int TlsChloExtractor::SetReadSecretCallback(
SSL* ssl, enum ssl_encryption_level_t ,
const SSL_CIPHER* , const uint8_t* ,
size_t ) {
GetInstanceFromSSL(ssl)->HandleUnexpectedCallback("SetReadSecretCallback");
return 0;
}
int TlsChloExtractor::SetWriteSecretCallback(
SSL* ssl, enum ssl_encryption_level_t ,
const SSL_CIPHER* , const uint8_t* ,
size_t ) {
GetInstanceFromSSL(ssl)->HandleUnexpectedCallback("SetWriteSecretCallback");
return 0;
}
int TlsChloExtractor::WriteMessageCallback(
SSL* ssl, enum ssl_encryption_level_t , const uint8_t* ,
size_t ) {
GetInstanceFromSSL(ssl)->HandleUnexpectedCallback("WriteMessageCallback");
return 0;
}
int TlsChloExtractor::FlushFlightCallback(SSL* ssl) {
GetInstanceFromSSL(ssl)->HandleUnexpectedCallback("FlushFlightCallback");
return 0;
}
void TlsChloExtractor::HandleUnexpectedCallback(
const std::string& callback_name) {
std::string error_details =
absl::StrCat("Unexpected callback ", callback_name);
QUIC_BUG(quic_bug_10855_3) << error_details;
HandleUnrecoverableError(error_details);
}
int TlsChloExtractor::SendAlertCallback(SSL* ssl,
enum ssl_encryption_level_t ,
uint8_t desc) {
GetInstanceFromSSL(ssl)->SendAlert(desc);
return 0;
}
void TlsChloExtractor::SendAlert(uint8_t tls_alert_value) {
if (tls_alert_value == SSL3_AD_HANDSHAKE_FAILURE && HasParsedFullChlo()) {
return;
}
HandleUnrecoverableError(absl::StrCat(
"BoringSSL attempted to send alert ", static_cast<int>(tls_alert_value),
" ", SSL_alert_desc_string_long(tls_alert_value)));
if (state_ == State::kUnrecoverableFailure) {
tls_alert_ = tls_alert_value;
}
}
enum ssl_select_cert_result_t TlsChloExtractor::SelectCertCallback(
const SSL_CLIENT_HELLO* client_hello) {
GetInstanceFromSSL(client_hello->ssl)->HandleParsedChlo(client_hello);
return ssl_select_cert_error;
}
void TlsChloExtractor::HandleParsedChlo(const SSL_CLIENT_HELLO* client_hello) {
const char* server_name =
SSL_get_servername(client_hello->ssl, TLSEXT_NAMETYPE_host_name);
if (server_name) {
server_name_ = std::string(server_name);
}
resumption_attempted_ =
HasExtension(client_hello, TLSEXT_TYPE_pre_shared_key);
early_data_attempted_ = HasExtension(client_hello, TLSEXT_TYPE_early_data);
QUICHE_DCHECK(client_hello_bytes_.empty());
client_hello_bytes_.assign(
client_hello->client_hello,
client_hello->client_hello + client_hello->client_hello_len);
const uint8_t* alpn_data;
size_t alpn_len;
int rv = SSL_early_callback_ctx_extension_get(
client_hello, TLSEXT_TYPE_application_layer_protocol_negotiation,
&alpn_data, &alpn_len);
if (rv == 1) {
QuicDataReader alpns_reader(reinterpret_cast<const char*>(alpn_data),
alpn_len);
absl::string_view alpns_payload;
if (!alpns_reader.ReadStringPiece16(&alpns_payload)) {
HandleUnrecoverableError("Failed to read alpns_payload");
return;
}
QuicDataReader alpns_payload_reader(alpns_payload);
while (!alpns_payload_reader.IsDoneReading()) {
absl::string_view alpn_payload;
if (!alpns_payload_reader.ReadStringPiece8(&alpn_payload)) {
HandleUnrecoverableError("Failed to read alpn_payload");
return;
}
alpns_.emplace_back(std::string(alpn_payload));
}
}
supported_groups_ = GetSupportedGroups(client_hello);
if (state_ == State::kInitial) {
state_ = State::kParsedFullSinglePacketChlo;
} else if (state_ == State::kParsedPartialChloFragment) {
state_ = State::kParsedFullMultiPacketChlo;
} else {
QUIC_BUG(quic_bug_10855_4)
<< "Unexpected state on successful parse " << StateToString(state_);
}
}
std::pair<SSL_CTX*, int> TlsChloExtractor::GetSharedSslHandles() {
static std::pair<SSL_CTX*, int>* shared_handles = []() {
CRYPTO_library_init();
SSL_CTX* ssl_ctx = SSL_CTX_new(TLS_with_buffers_method());
SSL_CTX_set_min_proto_version(ssl_ctx, TLS1_3_VERSION);
SSL_CTX_set_max_proto_version(ssl_ctx, TLS1_3_VERSION);
static const SSL_QUIC_METHOD kQuicCallbacks{
TlsChloExtractor::SetReadSecretCallback,
TlsChloExtractor::SetWriteSecretCallback,
TlsChloExtractor::WriteMessageCallback,
TlsChloExtractor::FlushFlightCallback,
TlsChloExtractor::SendAlertCallback};
SSL_CTX_set_quic_method(ssl_ctx, &kQuicCallbacks);
SSL_CTX_set_select_certificate_cb(ssl_ctx,
TlsChloExtractor::SelectCertCallback);
int ex_data_index =
SSL_get_ex_new_index(0, nullptr, nullptr, nullptr, nullptr);
return new std::pair<SSL_CTX*, int>(ssl_ctx, ex_data_index);
}();
return *shared_handles;
}
void TlsChloExtractor::SetupSslHandle() {
if (ssl_) {
return;
}
std::pair<SSL_CTX*, int> shared_handles = GetSharedSslHandles();
SSL_CTX* ssl_ctx = shared_handles.first;
int ex_data_index = shared_handles.second;
ssl_ = bssl::UniquePtr<SSL>(SSL_new(ssl_ctx));
const int rv = SSL_set_ex_data(ssl_.get(), ex_data_index, this);
QUICHE_CHECK_EQ(rv, 1) << "Internal allocation failure in SSL_set_ex_data";
SSL_set_accept_state(ssl_.get());
int use_legacy_extension = 0;
if (framer_->version().UsesLegacyTlsExtension()) {
use_legacy_extension = 1;
}
SSL_set_quic_use_legacy_codepoint(ssl_.get(), use_legacy_extension);
}
void TlsChloExtractor::HandleUnrecoverableError(
const std::string& error_details) {
if (HasParsedFullChlo()) {
QUIC_DLOG(ERROR) << "Ignoring error: " << error_details;
return;
}
QUIC_DLOG(ERROR) << "Handling error: " << error_details;
state_ = State::kUnrecoverableFailure;
if (error_details_.empty()) {
error_details_ = error_details;
} else {
error_details_ = absl::StrCat(error_details_, "; ", error_details);
}
}
std::string TlsChloExtractor::StateToString(State state) {
switch (state) {
case State::kInitial:
return "Initial";
case State::kParsedFullSinglePacketChlo:
return "ParsedFullSinglePacketChlo";
case State::kParsedFullMultiPacketChlo:
return "ParsedFullMultiPacketChlo";
case State::kParsedPartialChloFragment:
return "ParsedPartialChloFragment";
case State::kUnrecoverableFailure:
return "UnrecoverableFailure";
}
return absl::StrCat("Unknown(", static_cast<int>(state), ")");
}
std::ostream& operator<<(std::ostream& os,
const TlsChloExtractor::State& state) {
os << TlsChloExtractor::StateToString(state);
return os;
}
} | #include "quiche/quic/core/tls_chlo_extractor.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "openssl/ssl.h"
#include "quiche/quic/core/http/quic_spdy_client_session.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/first_flight.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_session_cache.h"
namespace quic {
namespace test {
namespace {
using testing::_;
using testing::AnyNumber;
class TlsChloExtractorTest : public QuicTestWithParam<ParsedQuicVersion> {
protected:
TlsChloExtractorTest() : version_(GetParam()), server_id_(TestServerId()) {}
void Initialize() {
tls_chlo_extractor_ = std::make_unique<TlsChloExtractor>();
AnnotatedPackets packets =
GetAnnotatedFirstFlightOfPackets(version_, config_);
packets_ = std::move(packets.packets);
crypto_stream_size_ = packets.crypto_stream_size;
QUIC_DLOG(INFO) << "Initialized with " << packets_.size()
<< " packets with crypto_stream_size:"
<< crypto_stream_size_;
}
void Initialize(std::unique_ptr<QuicCryptoClientConfig> crypto_config) {
tls_chlo_extractor_ = std::make_unique<TlsChloExtractor>();
AnnotatedPackets packets = GetAnnotatedFirstFlightOfPackets(
version_, config_, TestConnectionId(), EmptyQuicConnectionId(),
std::move(crypto_config));
packets_ = std::move(packets.packets);
crypto_stream_size_ = packets.crypto_stream_size;
QUIC_DLOG(INFO) << "Initialized with " << packets_.size()
<< " packets with crypto_stream_size:"
<< crypto_stream_size_;
}
void PerformFullHandshake(QuicCryptoClientConfig* crypto_config) const {
ASSERT_NE(crypto_config->session_cache(), nullptr);
MockQuicConnectionHelper client_helper, server_helper;
MockAlarmFactory alarm_factory;
ParsedQuicVersionVector supported_versions = {version_};
PacketSavingConnection* client_connection =
new PacketSavingConnection(&client_helper, &alarm_factory,
Perspective::IS_CLIENT, supported_versions);
client_connection->AdvanceTime(QuicTime::Delta::FromSeconds(1));
QuicSpdyClientSession client_session(config_, supported_versions,
client_connection, server_id_,
crypto_config);
client_session.Initialize();
std::unique_ptr<QuicCryptoServerConfig> server_crypto_config =
crypto_test_utils::CryptoServerConfigForTesting();
QuicConfig server_config;
EXPECT_CALL(*client_connection, SendCryptoData(_, _, _)).Times(AnyNumber());
client_session.GetMutableCryptoStream()->CryptoConnect();
crypto_test_utils::HandshakeWithFakeServer(
&server_config, server_crypto_config.get(), &server_helper,
&alarm_factory, client_connection,
client_session.GetMutableCryptoStream(),
AlpnForVersion(client_connection->version()));
SettingsFrame server_settings;
server_settings.values[SETTINGS_QPACK_MAX_TABLE_CAPACITY] =
kDefaultQpackMaxDynamicTableCapacity;
std::string settings_frame =
HttpEncoder::SerializeSettingsFrame(server_settings);
client_session.GetMutableCryptoStream()
->SetServerApplicationStateForResumption(
std::make_unique<ApplicationState>(
settings_frame.data(),
settings_frame.data() + settings_frame.length()));
}
void IngestPackets() {
for (const std::unique_ptr<QuicReceivedPacket>& packet : packets_) {
ReceivedPacketInfo packet_info(
QuicSocketAddress(TestPeerIPAddress(), kTestPort),
QuicSocketAddress(TestPeerIPAddress(), kTestPort), *packet);
std::string detailed_error;
std::optional<absl::string_view> retry_token;
const QuicErrorCode error = QuicFramer::ParsePublicHeaderDispatcher(
*packet, 0,
&packet_info.form, &packet_info.long_packet_type,
&packet_info.version_flag, &packet_info.use_length_prefix,
&packet_info.version_label, &packet_info.version,
&packet_info.destination_connection_id,
&packet_info.source_connection_id, &retry_token, &detailed_error);
ASSERT_THAT(error, IsQuicNoError()) << detailed_error;
tls_chlo_extractor_->IngestPacket(packet_info.version,
packet_info.packet);
}
packets_.clear();
}
void ValidateChloDetails(const TlsChloExtractor* extractor = nullptr) const {
if (extractor == nullptr) {
extractor = tls_chlo_extractor_.get();
}
EXPECT_TRUE(extractor->HasParsedFullChlo());
std::vector<std::string> alpns = extractor->alpns();
ASSERT_EQ(alpns.size(), 1u);
EXPECT_EQ(alpns[0], AlpnForVersion(version_));
EXPECT_EQ(extractor->server_name(), TestHostname());
EXPECT_EQ(extractor->client_hello_bytes().size(), crypto_stream_size_ - 4);
}
void IncreaseSizeOfChlo() {
constexpr auto kCustomParameterId =
static_cast<TransportParameters::TransportParameterId>(0xff33);
std::string kCustomParameterValue(2000, '-');
config_.custom_transport_parameters_to_send()[kCustomParameterId] =
kCustomParameterValue;
}
ParsedQuicVersion version_;
QuicServerId server_id_;
std::unique_ptr<TlsChloExtractor> tls_chlo_extractor_;
QuicConfig config_;
std::vector<std::unique_ptr<QuicReceivedPacket>> packets_;
uint64_t crypto_stream_size_;
};
INSTANTIATE_TEST_SUITE_P(TlsChloExtractorTests, TlsChloExtractorTest,
::testing::ValuesIn(AllSupportedVersionsWithTls()),
::testing::PrintToStringParamName());
TEST_P(TlsChloExtractorTest, Simple) {
Initialize();
EXPECT_EQ(packets_.size(), 1u);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullSinglePacketChlo);
EXPECT_FALSE(tls_chlo_extractor_->resumption_attempted());
EXPECT_FALSE(tls_chlo_extractor_->early_data_attempted());
}
TEST_P(TlsChloExtractorTest, TlsExtensionInfo_ResumptionOnly) {
auto crypto_client_config = std::make_unique<QuicCryptoClientConfig>(
crypto_test_utils::ProofVerifierForTesting(),
std::make_unique<SimpleSessionCache>());
PerformFullHandshake(crypto_client_config.get());
SSL_CTX_set_early_data_enabled(crypto_client_config->ssl_ctx(), 0);
Initialize(std::move(crypto_client_config));
EXPECT_GE(packets_.size(), 1u);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullSinglePacketChlo);
EXPECT_TRUE(tls_chlo_extractor_->resumption_attempted());
EXPECT_FALSE(tls_chlo_extractor_->early_data_attempted());
}
TEST_P(TlsChloExtractorTest, TlsExtensionInfo_ZeroRtt) {
auto crypto_client_config = std::make_unique<QuicCryptoClientConfig>(
crypto_test_utils::ProofVerifierForTesting(),
std::make_unique<SimpleSessionCache>());
PerformFullHandshake(crypto_client_config.get());
IncreaseSizeOfChlo();
Initialize(std::move(crypto_client_config));
EXPECT_GE(packets_.size(), 1u);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullMultiPacketChlo);
EXPECT_TRUE(tls_chlo_extractor_->resumption_attempted());
EXPECT_TRUE(tls_chlo_extractor_->early_data_attempted());
}
TEST_P(TlsChloExtractorTest, TlsExtensionInfo_SupportedGroups) {
const std::vector<std::vector<uint16_t>> preferred_groups_to_test = {
{SSL_GROUP_X25519},
{SSL_GROUP_X25519_KYBER768_DRAFT00, SSL_GROUP_X25519},
};
for (const std::vector<uint16_t>& preferred_groups :
preferred_groups_to_test) {
auto crypto_client_config = std::make_unique<QuicCryptoClientConfig>(
crypto_test_utils::ProofVerifierForTesting());
crypto_client_config->set_preferred_groups(preferred_groups);
Initialize(std::move(crypto_client_config));
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->supported_groups(), preferred_groups);
}
}
TEST_P(TlsChloExtractorTest, MultiPacket) {
IncreaseSizeOfChlo();
Initialize();
EXPECT_EQ(packets_.size(), 2u);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullMultiPacketChlo);
}
TEST_P(TlsChloExtractorTest, MultiPacketReordered) {
IncreaseSizeOfChlo();
Initialize();
ASSERT_EQ(packets_.size(), 2u);
std::swap(packets_[0], packets_[1]);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullMultiPacketChlo);
}
TEST_P(TlsChloExtractorTest, MoveAssignment) {
Initialize();
EXPECT_EQ(packets_.size(), 1u);
TlsChloExtractor other_extractor;
*tls_chlo_extractor_ = std::move(other_extractor);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullSinglePacketChlo);
}
TEST_P(TlsChloExtractorTest, MoveAssignmentAfterExtraction) {
Initialize();
EXPECT_EQ(packets_.size(), 1u);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullSinglePacketChlo);
TlsChloExtractor other_extractor = std::move(*tls_chlo_extractor_);
EXPECT_EQ(other_extractor.state(),
TlsChloExtractor::State::kParsedFullSinglePacketChlo);
ValidateChloDetails(&other_extractor);
}
TEST_P(TlsChloExtractorTest, MoveAssignmentBetweenPackets) {
IncreaseSizeOfChlo();
Initialize();
ASSERT_EQ(packets_.size(), 2u);
TlsChloExtractor other_extractor;
ReceivedPacketInfo packet_info(
QuicSocketAddress(TestPeerIPAddress(), kTestPort),
QuicSocketAddress(TestPeerIPAddress(), kTestPort), *packets_[0]);
std::string detailed_error;
std::optional<absl::string_view> retry_token;
const QuicErrorCode error = QuicFramer::ParsePublicHeaderDispatcher(
*packets_[0], 0,
&packet_info.form, &packet_info.long_packet_type,
&packet_info.version_flag, &packet_info.use_length_prefix,
&packet_info.version_label, &packet_info.version,
&packet_info.destination_connection_id, &packet_info.source_connection_id,
&retry_token, &detailed_error);
ASSERT_THAT(error, IsQuicNoError()) << detailed_error;
other_extractor.IngestPacket(packet_info.version, packet_info.packet);
packets_.erase(packets_.begin());
EXPECT_EQ(packets_.size(), 1u);
*tls_chlo_extractor_ = std::move(other_extractor);
IngestPackets();
ValidateChloDetails();
EXPECT_EQ(tls_chlo_extractor_->state(),
TlsChloExtractor::State::kParsedFullMultiPacketChlo);
}
}
}
} |
259 | cpp | google/quiche | quic_stream_sequencer_buffer | quiche/quic/core/quic_stream_sequencer_buffer.cc | quiche/quic/core/quic_stream_sequencer_buffer_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_SEQUENCER_BUFFER_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_SEQUENCER_BUFFER_H_
#include <cstddef>
#include <functional>
#include <list>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_interval_set.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_iovec.h"
namespace quic {
namespace test {
class QuicStreamSequencerBufferPeer;
}
class QUICHE_EXPORT QuicStreamSequencerBuffer {
public:
static const size_t kBlockSizeBytes = 8 * 1024;
struct QUICHE_EXPORT BufferBlock {
char buffer[kBlockSizeBytes];
};
explicit QuicStreamSequencerBuffer(size_t max_capacity_bytes);
QuicStreamSequencerBuffer(const QuicStreamSequencerBuffer&) = delete;
QuicStreamSequencerBuffer(QuicStreamSequencerBuffer&&) = default;
QuicStreamSequencerBuffer& operator=(const QuicStreamSequencerBuffer&) =
delete;
QuicStreamSequencerBuffer& operator=(QuicStreamSequencerBuffer&&) = default;
~QuicStreamSequencerBuffer();
void Clear();
bool Empty() const;
QuicErrorCode OnStreamData(QuicStreamOffset offset, absl::string_view data,
size_t* bytes_buffered,
std::string* error_details);
QuicErrorCode Readv(const struct iovec* dest_iov, size_t dest_count,
size_t* bytes_read, std::string* error_details);
int GetReadableRegions(struct iovec* iov, int iov_len) const;
bool GetReadableRegion(iovec* iov) const;
bool PeekRegion(QuicStreamOffset offset, iovec* iov) const;
bool MarkConsumed(size_t bytes_consumed);
size_t FlushBufferedFrames();
void ReleaseWholeBuffer();
bool HasBytesToRead() const;
QuicStreamOffset BytesConsumed() const;
size_t BytesBuffered() const;
size_t ReadableBytes() const;
QuicStreamOffset FirstMissingByte() const;
QuicStreamOffset NextExpectedByte() const;
std::string ReceivedFramesDebugString() const;
private:
friend class test::QuicStreamSequencerBufferPeer;
bool CopyStreamData(QuicStreamOffset offset, absl::string_view data,
size_t* bytes_copy, std::string* error_details);
bool RetireBlock(size_t index);
bool RetireBlockIfEmpty(size_t block_index);
size_t GetBlockCapacity(size_t index) const;
size_t GetBlockIndex(QuicStreamOffset offset) const;
size_t GetInBlockOffset(QuicStreamOffset offset) const;
size_t ReadOffset() const;
size_t NextBlockToRead() const;
void MaybeAddMoreBlocks(QuicStreamOffset next_expected_byte);
size_t max_buffer_capacity_bytes_;
size_t max_blocks_count_;
size_t current_blocks_count_;
QuicStreamOffset total_bytes_read_;
std::unique_ptr<BufferBlock*[]> blocks_;
size_t num_bytes_buffered_;
QuicIntervalSet<QuicStreamOffset> bytes_received_;
};
}
#endif
#include "quiche/quic/core/quic_stream_sequencer_buffer.h"
#include <algorithm>
#include <cstddef>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_interval.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace {
size_t CalculateBlockCount(size_t max_capacity_bytes) {
return (max_capacity_bytes + QuicStreamSequencerBuffer::kBlockSizeBytes - 1) /
QuicStreamSequencerBuffer::kBlockSizeBytes;
}
const size_t kMaxNumDataIntervalsAllowed = 2 * kMaxPacketGap;
constexpr size_t kInitialBlockCount = 8u;
constexpr int kBlocksGrowthFactor = 4;
}
QuicStreamSequencerBuffer::QuicStreamSequencerBuffer(size_t max_capacity_bytes)
: max_buffer_capacity_bytes_(max_capacity_bytes),
max_blocks_count_(CalculateBlockCount(max_capacity_bytes)),
current_blocks_count_(0u),
total_bytes_read_(0),
blocks_(nullptr) {
QUICHE_DCHECK_GE(max_blocks_count_, kInitialBlockCount);
Clear();
}
QuicStreamSequencerBuffer::~QuicStreamSequencerBuffer() { Clear(); }
void QuicStreamSequencerBuffer::Clear() {
if (blocks_ != nullptr) {
for (size_t i = 0; i < current_blocks_count_; ++i) {
if (blocks_[i] != nullptr) {
RetireBlock(i);
}
}
}
num_bytes_buffered_ = 0;
bytes_received_.Clear();
bytes_received_.Add(0, total_bytes_read_);
}
bool QuicStreamSequencerBuffer::RetireBlock(size_t index) {
if (blocks_[index] == nullptr) {
QUIC_BUG(quic_bug_10610_1) << "Try to retire block twice";
return false;
}
delete blocks_[index];
blocks_[index] = nullptr;
QUIC_DVLOG(1) << "Retired block with index: " << index;
return true;
}
void QuicStreamSequencerBuffer::MaybeAddMoreBlocks(
QuicStreamOffset next_expected_byte) {
if (current_blocks_count_ == max_blocks_count_) {
return;
}
QuicStreamOffset last_byte = next_expected_byte - 1;
size_t num_of_blocks_needed;
if (last_byte < max_buffer_capacity_bytes_) {
num_of_blocks_needed =
std::max(GetBlockIndex(last_byte) + 1, kInitialBlockCount);
} else {
num_of_blocks_needed = max_blocks_count_;
}
if (current_blocks_count_ >= num_of_blocks_needed) {
return;
}
size_t new_block_count = kBlocksGrowthFactor * current_blocks_count_;
new_block_count = std::min(std::max(new_block_count, num_of_blocks_needed),
max_blocks_count_);
auto new_blocks = std::make_unique<BufferBlock*[]>(new_block_count);
if (blocks_ != nullptr) {
memcpy(new_blocks.get(), blocks_.get(),
current_blocks_count_ * sizeof(BufferBlock*));
}
blocks_ = std::move(new_blocks);
current_blocks_count_ = new_block_count;
}
QuicErrorCode QuicStreamSequencerBuffer::OnStreamData(
QuicStreamOffset starting_offset, absl::string_view data,
size_t* const bytes_buffered, std::string* error_details) {
*bytes_buffered = 0;
size_t size = data.size();
if (size == 0) {
*error_details = "Received empty stream frame without FIN.";
return QUIC_EMPTY_STREAM_FRAME_NO_FIN;
}
if (starting_offset + size > total_bytes_read_ + max_buffer_capacity_bytes_ ||
starting_offset + size < starting_offset) {
*error_details = "Received data beyond available range.";
return QUIC_INTERNAL_ERROR;
}
if (bytes_received_.Empty() ||
starting_offset >= bytes_received_.rbegin()->max() ||
bytes_received_.IsDisjoint(QuicInterval<QuicStreamOffset>(
starting_offset, starting_offset + size))) {
bytes_received_.AddOptimizedForAppend(starting_offset,
starting_offset + size);
if (bytes_received_.Size() >= kMaxNumDataIntervalsAllowed) {
*error_details = "Too many data intervals received for this stream.";
return QUIC_TOO_MANY_STREAM_DATA_INTERVALS;
}
MaybeAddMoreBlocks(starting_offset + size);
size_t bytes_copy = 0;
if (!CopyStreamData(starting_offset, data, &bytes_copy, error_details)) {
return QUIC_STREAM_SEQUENCER_INVALID_STATE;
}
*bytes_buffered += bytes_copy;
num_bytes_buffered_ += *bytes_buffered;
return QUIC_NO_ERROR;
}
QuicIntervalSet<QuicStreamOffset> newly_received(starting_offset,
starting_offset + size);
newly_received.Difference(bytes_received_);
if (newly_received.Empty()) {
return QUIC_NO_ERROR;
}
bytes_received_.Add(starting_offset, starting_offset + size);
if (bytes_received_.Size() >= kMaxNumDataIntervalsAllowed) {
*error_details = "Too many data intervals received for this stream.";
return QUIC_TOO_MANY_STREAM_DATA_INTERVALS;
}
MaybeAddMoreBlocks(starting_offset + size);
for (const auto& interval : newly_received) {
const QuicStreamOffset copy_offset = interval.min();
const QuicByteCount copy_length = interval.max() - interval.min();
size_t bytes_copy = 0;
if (!CopyStreamData(copy_offset,
data.substr(copy_offset - starting_offset, copy_length),
&bytes_copy, error_details)) {
return QUIC_STREAM_SEQUENCER_INVALID_STATE;
}
*bytes_buffered += bytes_copy;
}
num_bytes_buffered_ += *bytes_buffered;
return QUIC_NO_ERROR;
}
bool QuicStreamSequencerBuffer::CopyStreamData(QuicStreamOffset offset,
absl::string_view data,
size_t* bytes_copy,
std::string* error_details) {
*bytes_copy = 0;
size_t source_remaining = data.size();
if (source_remaining == 0) {
return true;
}
const char* source = data.data();
while (source_remaining > 0) {
const size_t write_block_num = GetBlockIndex(offset);
const size_t write_block_offset = GetInBlockOffset(offset);
size_t current_blocks_count = current_blocks_count_;
QUICHE_DCHECK_GT(current_blocks_count, write_block_num);
size_t block_capacity = GetBlockCapacity(write_block_num);
size_t bytes_avail = block_capacity - write_block_offset;
if (offset + bytes_avail > total_bytes_read_ + max_buffer_capacity_bytes_) {
bytes_avail = total_bytes_read_ + max_buffer_capacity_bytes_ - offset;
}
if (write_block_num >= current_blocks_count) {
*error_details = absl::StrCat(
"QuicStreamSequencerBuffer error: OnStreamData() exceed array bounds."
"write offset = ",
offset, " write_block_num = ", write_block_num,
" current_blocks_count_ = ", current_blocks_count);
return false;
}
if (blocks_ == nullptr) {
*error_details =
"QuicStreamSequencerBuffer error: OnStreamData() blocks_ is null";
return false;
}
if (blocks_[write_block_num] == nullptr) {
blocks_[write_block_num] = new BufferBlock();
}
const size_t bytes_to_copy =
std::min<size_t>(bytes_avail, source_remaining);
char* dest = blocks_[write_block_num]->buffer + write_block_offset;
QUIC_DVLOG(1) << "Write at offset: " << offset
<< " length: " << bytes_to_copy;
if (dest == nullptr || source == nullptr) {
*error_details = absl::StrCat(
"QuicStreamSequencerBuffer error: OnStreamData()"
" dest == nullptr: ",
(dest == nullptr), " source == nullptr: ", (source == nullptr),
" Writing at offset ", offset,
" Received frames: ", ReceivedFramesDebugString(),
" total_bytes_read_ = ", total_bytes_read_);
return false;
}
memcpy(dest, source, bytes_to_copy);
source += bytes_to_copy;
source_remaining -= bytes_to_copy;
offset += bytes_to_copy;
*bytes_copy += bytes_to_copy;
}
return true;
}
QuicErrorCode QuicStreamSequencerBuffer::Readv(const iovec* dest_iov,
size_t dest_count,
size_t* bytes_read,
std::string* error_details) {
*bytes_read = 0;
for (size_t i = 0; i < dest_count && ReadableBytes() > 0; ++i) {
char* dest = reinterpret_cast<char*>(dest_iov[i].iov_base);
QUICHE_DCHECK(dest != nullptr);
size_t dest_remaining = dest_iov[i].iov_len;
while (dest_remaining > 0 && ReadableBytes() > 0) {
size_t block_idx = NextBlockToRead();
size_t start_offset_in_block = ReadOffset();
size_t block_capacity = GetBlockCapacity(block_idx);
size_t bytes_available_in_block = std::min<size_t>(
ReadableBytes(), block_capacity - start_offset_in_block);
size_t bytes_to_copy =
std::min<size_t>(bytes_available_in_block, dest_remaining);
QUICHE_DCHECK_GT(bytes_to_copy, 0u);
if (blocks_[block_idx] == nullptr || dest == nullptr) {
*error_details = absl::StrCat(
"QuicStreamSequencerBuffer error:"
" Readv() dest == nullptr: ",
(dest == nullptr), " blocks_[", block_idx,
"] == nullptr: ", (blocks_[block_idx] == nullptr),
" Received frames: ", ReceivedFramesDebugString(),
" total_bytes_read_ = ", total_bytes_read_);
return QUIC_STREAM_SEQUENCER_INVALID_STATE;
}
memcpy(dest, blocks_[block_idx]->buffer + start_offset_in_block,
bytes_to_copy);
dest += bytes_to_copy;
dest_remaining -= bytes_to_copy;
num_bytes_buffered_ -= bytes_to_copy;
total_bytes_read_ += bytes_to_copy;
*bytes_read += bytes_to_copy;
if (bytes_to_copy == bytes_available_in_block) {
bool retire_successfully = RetireBlockIfEmpty(block_idx);
if (!retire_successfully) {
*error_details = absl::StrCat(
"QuicStreamSequencerBuffer error: fail to retire block ",
block_idx,
" as the block is already released, total_bytes_read_ = ",
total_bytes_read_,
" Received frames: ", ReceivedFramesDebugString());
return QUIC_STREAM_SEQUENCER_INVALID_STATE;
}
}
}
}
return QUIC_NO_ERROR;
}
int QuicStreamSequencerBuffer::GetReadableRegions(struct iovec* iov,
int iov_len) const {
QUICHE_DCHECK(iov != nullptr);
QUICHE_DCHECK_GT(iov_len, 0);
if (ReadableBytes() == 0) {
iov[0].iov_base = nullptr;
iov[0].iov_len = 0;
return 0;
}
size_t start_block_idx = NextBlockToRead();
QuicStreamOffset readable_offset_end = FirstMissingByte() - 1;
QUICHE_DCHECK_GE(readable_offset_end + 1, total_bytes_read_);
size_t end_block_offset = GetInBlockOffset(readable_offset_end);
size_t end_block_idx = GetBlockIndex(readable_offset_end);
if (start_block_idx == end_block_idx && ReadOffset() <= end_block_offset) {
iov[0].iov_base = blocks_[start_block_idx]->buffer + ReadOffset();
iov[0].iov_len = ReadableBytes();
QUIC_DVLOG(1) << "Got only a single block with index: " << start_block_idx;
return 1;
}
iov[0].iov_base = blocks_[start_block_idx]->buffer + ReadOffset();
iov[0].iov_len = GetBlockCapacity(start_block_idx) - ReadOffset();
QUIC_DVLOG(1) << "Got first block " << start_block_idx << " with len "
<< iov[0].iov_len;
QUICHE_DCHECK_GT(readable_offset_end + 1, total_bytes_read_ + iov[0].iov_len)
<< "there should be more available data";
int iov_used = 1;
size_t block_idx = (start_block_idx + iov_used) % max_blocks_count_;
while (block_idx != end_block_idx && iov_used < iov_len) {
QUICHE_DCHECK(nullptr != blocks_[block_idx]);
iov[iov_used].iov_base = blocks_[block_idx]->buffer;
iov[iov_used].iov_len = GetBlockCapacity(block_idx);
QUIC_DVLOG(1) << "Got block with index: " << block_idx;
++iov_used;
block_idx = (start_block_idx + iov_used) % max_blocks_count_;
}
if (iov_used < iov_len) {
QUICHE_DCHECK(nullptr != blocks_[block_idx]);
iov[iov_used].iov_base = blocks_[end_block_idx]->buffer;
iov[iov_used].iov_len = end_block_offset + 1;
QUIC_DVLOG(1) << "Got last block with index: " << end_block_idx;
++iov_used;
}
return iov_used;
}
bool QuicStreamSequencerBuffer::GetReadableRegion(iovec* iov) const {
return GetReadableRegions(iov, 1) == 1;
}
bool QuicStreamSequencerBuffer::PeekRegion(QuicStreamOffset offset,
iovec* iov) const {
QUICHE_DCHECK(iov);
if (offset < total_bytes_read_) {
return false;
}
if (offset >= FirstMissingByte()) {
return false;
}
size_t block_idx = GetBlockIndex(offset);
size_t block_offset = GetInBlockOffset(offset);
iov->iov_base = blocks_[block_idx]->buffer + block_offset;
size_t end_block_idx = GetBlockIndex(FirstMissingByte());
if (block_idx == end_block_idx) {
iov->iov_len = GetInBlockOffset(FirstMissingByte()) - block_offset;
} else {
iov->iov_len = GetBlockCapacity(block_idx) - block_offset;
}
return true;
}
bool QuicStreamSequencerBuffer::MarkConsumed(size_t bytes_consumed) {
if (bytes_consumed > ReadableBytes()) {
return false;
}
size_t bytes_to_consume = bytes_consumed;
while (bytes_to_consume > 0) {
size_t block_idx = NextBlockToRead();
size_t offset_in_block = ReadOffset();
size_t bytes_available = std::min<size_t>(
ReadableBytes(), GetBlockCapacity(block_idx) - offset_in_block);
size_t bytes_read = std::min<size_t>(bytes_to_consume, bytes_available);
total_bytes_read_ += bytes_read;
num_bytes_buffered_ -= bytes_read;
bytes_to_consume -= bytes_read;
if (bytes_available == bytes_read) {
RetireBlockIfEmpty(block_idx);
}
}
return true;
}
size_t QuicStreamSequencerBuffer::FlushBufferedFrames() {
size_t prev_total_bytes_read = total_bytes_read_;
total_bytes_read_ = NextExpectedByte();
Clear();
return total_bytes_read_ - prev_total_bytes_read;
}
void QuicStreamSequencerBuffer::ReleaseWholeBuffer() {
Clear();
current_blocks_count_ = 0;
blocks_.reset(nullptr);
}
size_t QuicStreamSequencerBuffer::ReadableBytes() const {
return FirstMissingByte() - total_bytes_read_;
}
bool QuicStreamSequencerBuffer::HasBytesToRead() const {
return ReadableBytes() > 0;
}
QuicStreamOffset QuicStreamSequencerBuffer::BytesConsumed() const {
return total_bytes_read_;
}
size_t QuicStreamSequencerBuffer::BytesBuffered() const {
return num_bytes_buffered_;
}
size_t QuicStreamSequencerBuffer::GetBlockIndex(QuicStreamOffset offset) const {
return (offset % max_buffer_capacity_bytes_) / kBlockSizeBytes;
}
size_t QuicStreamSequencerBuffer::GetInBlockOffset(
QuicStreamOffset offset) const {
return (offset % max_buffer_capacity_bytes_) % kBlockSizeBytes;
}
size_t QuicStreamSequencerBuffer::ReadOffset() const {
return GetInBlockOffset(total_bytes_read_);
}
size_t QuicStreamSequencerBuffer::NextBlockToRead() const {
return GetBlockIndex(total_bytes_read_);
}
bool QuicStreamSequencerBuffer::RetireBlockIfEmpty(size_t block_index) {
QUICHE_DCHECK(ReadableBytes() == 0 ||
GetInBlockOffset(total_bytes_read_) == 0)
<< "RetireBlockIfEmpty() should only be called when advancing to next "
<< "block or a gap has been reached.";
if (Empty()) {
return RetireBlock(block_index);
}
if (GetBlockIndex(NextExpectedByte() - 1) == block_index) {
return true;
}
if (NextBlockToRead() == block_index) {
if (bytes_received_.Size() > 1) {
auto it = bytes_received_.begin();
++it;
if (GetBlockIndex(it->min()) == block_index) {
return true;
}
} else {
QUIC_BUG(quic_bug_10610_2) << "Read stopped at where it shouldn't.";
return false;
}
}
return RetireBlock(block_index);
}
bool QuicStreamSequencerBuffer::Empty() const {
return bytes_received_.Empty() ||
(bytes_received_.Size() == 1 && total_bytes_read_ > 0 &&
bytes_received_.begin()->max() == total_bytes_read_);
}
size_t QuicStreamSequencerBuffer::GetBlockCapacity(size_t block_index) const {
if ((block_index + 1) == max_blocks_count_) {
size_t result = max_buffer_capacity_bytes_ % kBlockSizeBytes;
if (result == 0) {
result = kBlockSizeBytes;
}
return result;
} else {
return kBlockSizeBytes;
}
}
std::string QuicStreamSequencerBuffer::ReceivedFramesDebugString() const {
return bytes_received_.ToString();
}
QuicStreamOffset QuicStreamSequencerBuffer::FirstMissingByte() const {
if (bytes_received_.Empty() || bytes_received_.begin()->min() > 0) {
return 0;
}
return bytes_received_.begin()->max();
}
QuicStreamOffset QuicStreamSequencerBuffer::NextExpectedByte() const {
if (bytes_received_.Empty()) {
return 0;
}
return bytes_received_.rbegin()->max();
}
} | #include "quiche/quic/core/quic_stream_sequencer_buffer.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <list>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_stream_sequencer_buffer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
absl::string_view IovecToStringPiece(iovec iov) {
return absl::string_view(reinterpret_cast<const char*>(iov.iov_base),
iov.iov_len);
}
char GetCharFromIOVecs(size_t offset, iovec iov[], size_t count) {
size_t start_offset = 0;
for (size_t i = 0; i < count; i++) {
if (iov[i].iov_len == 0) {
continue;
}
size_t end_offset = start_offset + iov[i].iov_len - 1;
if (offset >= start_offset && offset <= end_offset) {
const char* buf = reinterpret_cast<const char*>(iov[i].iov_base);
return buf[offset - start_offset];
}
start_offset += iov[i].iov_len;
}
QUIC_LOG(ERROR) << "Could not locate char at offset " << offset << " in "
<< count << " iovecs";
for (size_t i = 0; i < count; ++i) {
QUIC_LOG(ERROR) << " iov[" << i << "].iov_len = " << iov[i].iov_len;
}
return '\0';
}
const size_t kMaxNumGapsAllowed = 2 * kMaxPacketGap;
static const size_t kBlockSizeBytes =
QuicStreamSequencerBuffer::kBlockSizeBytes;
using BufferBlock = QuicStreamSequencerBuffer::BufferBlock;
namespace {
class QuicStreamSequencerBufferTest : public QuicTest {
public:
void SetUp() override { Initialize(); }
void ResetMaxCapacityBytes(size_t max_capacity_bytes) {
max_capacity_bytes_ = max_capacity_bytes;
Initialize();
}
protected:
void Initialize() {
buffer_ =
std::make_unique<QuicStreamSequencerBuffer>((max_capacity_bytes_));
helper_ = std::make_unique<QuicStreamSequencerBufferPeer>((buffer_.get()));
}
size_t max_capacity_bytes_ = 8.5 * kBlockSizeBytes;
std::unique_ptr<QuicStreamSequencerBuffer> buffer_;
std::unique_ptr<QuicStreamSequencerBufferPeer> helper_;
size_t written_ = 0;
std::string error_details_;
};
TEST_F(QuicStreamSequencerBufferTest, InitializeWithMaxRecvWindowSize) {
ResetMaxCapacityBytes(16 * 1024 * 1024);
EXPECT_EQ(2 * 1024u,
helper_->max_blocks_count());
EXPECT_EQ(max_capacity_bytes_, helper_->max_buffer_capacity());
EXPECT_TRUE(helper_->CheckInitialState());
}
TEST_F(QuicStreamSequencerBufferTest, InitializationWithDifferentSizes) {
const size_t kCapacity = 16 * QuicStreamSequencerBuffer::kBlockSizeBytes;
ResetMaxCapacityBytes(kCapacity);
EXPECT_EQ(max_capacity_bytes_, helper_->max_buffer_capacity());
EXPECT_TRUE(helper_->CheckInitialState());
const size_t kCapacity1 = 32 * QuicStreamSequencerBuffer::kBlockSizeBytes;
ResetMaxCapacityBytes(kCapacity1);
EXPECT_EQ(kCapacity1, helper_->max_buffer_capacity());
EXPECT_TRUE(helper_->CheckInitialState());
}
TEST_F(QuicStreamSequencerBufferTest, ClearOnEmpty) {
buffer_->Clear();
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamData0length) {
QuicErrorCode error =
buffer_->OnStreamData(800, "", &written_, &error_details_);
EXPECT_THAT(error, IsError(QUIC_EMPTY_STREAM_FRAME_NO_FIN));
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataWithinBlock) {
EXPECT_FALSE(helper_->IsBufferAllocated());
std::string source(1024, 'a');
EXPECT_THAT(buffer_->OnStreamData(800, source, &written_, &error_details_),
IsQuicNoError());
BufferBlock* block_ptr = helper_->GetBlock(0);
for (size_t i = 0; i < source.size(); ++i) {
ASSERT_EQ('a', block_ptr->buffer[helper_->GetInBlockOffset(800) + i]);
}
EXPECT_EQ(2, helper_->IntervalSize());
EXPECT_EQ(0u, helper_->ReadableBytes());
EXPECT_EQ(1u, helper_->bytes_received().Size());
EXPECT_EQ(800u, helper_->bytes_received().begin()->min());
EXPECT_EQ(1824u, helper_->bytes_received().begin()->max());
EXPECT_TRUE(helper_->CheckBufferInvariants());
EXPECT_TRUE(helper_->IsBufferAllocated());
}
TEST_F(QuicStreamSequencerBufferTest, Move) {
EXPECT_FALSE(helper_->IsBufferAllocated());
std::string source(1024, 'a');
EXPECT_THAT(buffer_->OnStreamData(800, source, &written_, &error_details_),
IsQuicNoError());
BufferBlock* block_ptr = helper_->GetBlock(0);
for (size_t i = 0; i < source.size(); ++i) {
ASSERT_EQ('a', block_ptr->buffer[helper_->GetInBlockOffset(800) + i]);
}
QuicStreamSequencerBuffer buffer2(std::move(*buffer_));
QuicStreamSequencerBufferPeer helper2(&buffer2);
EXPECT_FALSE(helper_->IsBufferAllocated());
EXPECT_EQ(2, helper2.IntervalSize());
EXPECT_EQ(0u, helper2.ReadableBytes());
EXPECT_EQ(1u, helper2.bytes_received().Size());
EXPECT_EQ(800u, helper2.bytes_received().begin()->min());
EXPECT_EQ(1824u, helper2.bytes_received().begin()->max());
EXPECT_TRUE(helper2.CheckBufferInvariants());
EXPECT_TRUE(helper2.IsBufferAllocated());
}
TEST_F(QuicStreamSequencerBufferTest, DISABLED_OnStreamDataInvalidSource) {
absl::string_view source;
source = absl::string_view(nullptr, 1024);
EXPECT_THAT(buffer_->OnStreamData(800, source, &written_, &error_details_),
IsError(QUIC_STREAM_SEQUENCER_INVALID_STATE));
EXPECT_EQ(0u, error_details_.find(absl::StrCat(
"QuicStreamSequencerBuffer error: OnStreamData() "
"dest == nullptr: ",
false, " source == nullptr: ", true)));
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataWithOverlap) {
std::string source(1024, 'a');
EXPECT_THAT(buffer_->OnStreamData(800, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_THAT(buffer_->OnStreamData(0, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_THAT(buffer_->OnStreamData(1024, source, &written_, &error_details_),
IsQuicNoError());
}
TEST_F(QuicStreamSequencerBufferTest,
OnStreamDataOverlapAndDuplicateCornerCases) {
std::string source(1024, 'a');
buffer_->OnStreamData(800, source, &written_, &error_details_);
source = std::string(800, 'b');
std::string one_byte = "c";
EXPECT_THAT(buffer_->OnStreamData(1, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_THAT(buffer_->OnStreamData(0, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_THAT(buffer_->OnStreamData(1823, one_byte, &written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(0u, written_);
EXPECT_THAT(buffer_->OnStreamData(1824, one_byte, &written_, &error_details_),
IsQuicNoError());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataWithoutOverlap) {
std::string source(1024, 'a');
EXPECT_THAT(buffer_->OnStreamData(800, source, &written_, &error_details_),
IsQuicNoError());
source = std::string(100, 'b');
EXPECT_THAT(buffer_->OnStreamData(kBlockSizeBytes * 2 - 20, source, &written_,
&error_details_),
IsQuicNoError());
EXPECT_EQ(3, helper_->IntervalSize());
EXPECT_EQ(1024u + 100u, buffer_->BytesBuffered());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataInLongStreamWithOverlap) {
uint64_t total_bytes_read = pow(2, 32) - 1;
helper_->set_total_bytes_read(total_bytes_read);
helper_->AddBytesReceived(0, total_bytes_read);
const size_t kBytesToWrite = 100;
std::string source(kBytesToWrite, 'a');
QuicStreamOffset offset = pow(2, 32) + 500;
EXPECT_THAT(buffer_->OnStreamData(offset, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(2, helper_->IntervalSize());
offset = pow(2, 32) + 700;
EXPECT_THAT(buffer_->OnStreamData(offset, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(3, helper_->IntervalSize());
offset = pow(2, 32) + 300;
EXPECT_THAT(buffer_->OnStreamData(offset, source, &written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(4, helper_->IntervalSize());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataTillEnd) {
const size_t kBytesToWrite = 50;
std::string source(kBytesToWrite, 'a');
EXPECT_THAT(buffer_->OnStreamData(max_capacity_bytes_ - kBytesToWrite, source,
&written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(50u, buffer_->BytesBuffered());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataTillEndCorner) {
const size_t kBytesToWrite = 1;
std::string source(kBytesToWrite, 'a');
EXPECT_THAT(buffer_->OnStreamData(max_capacity_bytes_ - kBytesToWrite, source,
&written_, &error_details_),
IsQuicNoError());
EXPECT_EQ(1u, buffer_->BytesBuffered());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, OnStreamDataBeyondCapacity) {
std::string source(60, 'a');
EXPECT_THAT(buffer_->OnStreamData(max_capacity_bytes_ - 50, source, &written_,
&error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
source = "b";
EXPECT_THAT(buffer_->OnStreamData(max_capacity_bytes_, source, &written_,
&error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
EXPECT_THAT(buffer_->OnStreamData(max_capacity_bytes_ * 1000, source,
&written_, &error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
EXPECT_THAT(buffer_->OnStreamData(static_cast<QuicStreamOffset>(-1), source,
&written_, &error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
source = "bbb";
EXPECT_THAT(buffer_->OnStreamData(static_cast<QuicStreamOffset>(-2), source,
&written_, &error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
EXPECT_EQ(0u, buffer_->BytesBuffered());
}
TEST_F(QuicStreamSequencerBufferTest, Readv100Bytes) {
std::string source(1024, 'a');
buffer_->OnStreamData(kBlockSizeBytes, source, &written_, &error_details_);
EXPECT_FALSE(buffer_->HasBytesToRead());
source = std::string(100, 'b');
buffer_->OnStreamData(0, source, &written_, &error_details_);
EXPECT_TRUE(buffer_->HasBytesToRead());
char dest[120];
iovec iovecs[3]{iovec{dest, 40}, iovec{dest + 40, 40}, iovec{dest + 80, 40}};
size_t read;
EXPECT_THAT(buffer_->Readv(iovecs, 3, &read, &error_details_),
IsQuicNoError());
QUIC_LOG(ERROR) << error_details_;
EXPECT_EQ(100u, read);
EXPECT_EQ(100u, buffer_->BytesConsumed());
EXPECT_EQ(source, absl::string_view(dest, read));
EXPECT_EQ(nullptr, helper_->GetBlock(0));
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, ReadvAcrossBlocks) {
std::string source(kBlockSizeBytes + 50, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
EXPECT_EQ(source.size(), helper_->ReadableBytes());
char dest[512];
while (helper_->ReadableBytes()) {
std::fill(dest, dest + 512, 0);
iovec iovecs[2]{iovec{dest, 256}, iovec{dest + 256, 256}};
size_t read;
EXPECT_THAT(buffer_->Readv(iovecs, 2, &read, &error_details_),
IsQuicNoError());
}
EXPECT_EQ(std::string(50, 'a'), std::string(dest, 50));
EXPECT_EQ(0, dest[50]) << "Dest[50] shouln't be filled.";
EXPECT_EQ(source.size(), buffer_->BytesConsumed());
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, ClearAfterRead) {
std::string source(kBlockSizeBytes + 50, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[512]{0};
const iovec iov{dest, 512};
size_t read;
EXPECT_THAT(buffer_->Readv(&iov, 1, &read, &error_details_), IsQuicNoError());
buffer_->Clear();
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest,
OnStreamDataAcrossLastBlockAndFillCapacity) {
std::string source(kBlockSizeBytes + 50, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[512]{0};
const iovec iov{dest, 512};
size_t read;
EXPECT_THAT(buffer_->Readv(&iov, 1, &read, &error_details_), IsQuicNoError());
EXPECT_EQ(source.size(), written_);
source = std::string(0.5 * kBlockSizeBytes + 512, 'b');
EXPECT_THAT(buffer_->OnStreamData(2 * kBlockSizeBytes, source, &written_,
&error_details_),
IsQuicNoError());
EXPECT_EQ(source.size(), written_);
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest,
OnStreamDataAcrossLastBlockAndExceedCapacity) {
std::string source(kBlockSizeBytes + 50, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[512]{0};
const iovec iov{dest, 512};
size_t read;
EXPECT_THAT(buffer_->Readv(&iov, 1, &read, &error_details_), IsQuicNoError());
source = std::string(0.5 * kBlockSizeBytes + 512 + 1, 'b');
EXPECT_THAT(buffer_->OnStreamData(8 * kBlockSizeBytes, source, &written_,
&error_details_),
IsError(QUIC_INTERNAL_ERROR));
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, ReadvAcrossLastBlock) {
std::string source(max_capacity_bytes_, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[512]{0};
const iovec iov{dest, 512};
size_t read;
EXPECT_THAT(buffer_->Readv(&iov, 1, &read, &error_details_), IsQuicNoError());
source = std::string(256, 'b');
buffer_->OnStreamData(max_capacity_bytes_, source, &written_,
&error_details_);
EXPECT_TRUE(helper_->CheckBufferInvariants());
std::unique_ptr<char[]> dest1{new char[max_capacity_bytes_]};
dest1[0] = 0;
const iovec iov1{dest1.get(), max_capacity_bytes_};
EXPECT_THAT(buffer_->Readv(&iov1, 1, &read, &error_details_),
IsQuicNoError());
EXPECT_EQ(max_capacity_bytes_ - 512 + 256, read);
EXPECT_EQ(max_capacity_bytes_ + 256, buffer_->BytesConsumed());
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, ReadvEmpty) {
char dest[512]{0};
iovec iov{dest, 512};
size_t read;
EXPECT_THAT(buffer_->Readv(&iov, 1, &read, &error_details_), IsQuicNoError());
EXPECT_EQ(0u, read);
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionsEmpty) {
iovec iovs[2];
int iov_count = buffer_->GetReadableRegions(iovs, 2);
EXPECT_EQ(0, iov_count);
EXPECT_EQ(nullptr, iovs[iov_count].iov_base);
EXPECT_EQ(0u, iovs[iov_count].iov_len);
}
TEST_F(QuicStreamSequencerBufferTest, ReleaseWholeBuffer) {
std::string source(100, 'b');
buffer_->OnStreamData(0, source, &written_, &error_details_);
EXPECT_TRUE(buffer_->HasBytesToRead());
char dest[120];
iovec iovecs[3]{iovec{dest, 40}, iovec{dest + 40, 40}, iovec{dest + 80, 40}};
size_t read;
EXPECT_THAT(buffer_->Readv(iovecs, 3, &read, &error_details_),
IsQuicNoError());
EXPECT_EQ(100u, read);
EXPECT_EQ(100u, buffer_->BytesConsumed());
EXPECT_TRUE(helper_->CheckBufferInvariants());
EXPECT_TRUE(helper_->IsBufferAllocated());
buffer_->ReleaseWholeBuffer();
EXPECT_FALSE(helper_->IsBufferAllocated());
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionsBlockedByGap) {
std::string source(1023, 'a');
buffer_->OnStreamData(1, source, &written_, &error_details_);
iovec iovs[2];
int iov_count = buffer_->GetReadableRegions(iovs, 2);
EXPECT_EQ(0, iov_count);
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionsTillEndOfBlock) {
std::string source(kBlockSizeBytes, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
iovec iovs[2];
int iov_count = buffer_->GetReadableRegions(iovs, 2);
EXPECT_EQ(1, iov_count);
EXPECT_EQ(std::string(kBlockSizeBytes - 256, 'a'),
IovecToStringPiece(iovs[0]));
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionsWithinOneBlock) {
std::string source(1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
iovec iovs[2];
int iov_count = buffer_->GetReadableRegions(iovs, 2);
EXPECT_EQ(1, iov_count);
EXPECT_EQ(std::string(1024 - 256, 'a'), IovecToStringPiece(iovs[0]));
}
TEST_F(QuicStreamSequencerBufferTest,
GetReadableRegionsAcrossBlockWithLongIOV) {
std::string source(2 * kBlockSizeBytes + 1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[1024];
helper_->Read(dest, 1024);
iovec iovs[4];
int iov_count = buffer_->GetReadableRegions(iovs, 4);
EXPECT_EQ(3, iov_count);
EXPECT_EQ(kBlockSizeBytes - 1024, iovs[0].iov_len);
EXPECT_EQ(kBlockSizeBytes, iovs[1].iov_len);
EXPECT_EQ(1024u, iovs[2].iov_len);
}
TEST_F(QuicStreamSequencerBufferTest,
GetReadableRegionsWithMultipleIOVsAcrossEnd) {
std::string source(8.5 * kBlockSizeBytes - 1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[1024];
helper_->Read(dest, 1024);
source = std::string(1024 + 512, 'b');
buffer_->OnStreamData(8.5 * kBlockSizeBytes - 1024, source, &written_,
&error_details_);
iovec iovs[2];
int iov_count = buffer_->GetReadableRegions(iovs, 2);
EXPECT_EQ(2, iov_count);
EXPECT_EQ(kBlockSizeBytes - 1024, iovs[0].iov_len);
EXPECT_EQ(kBlockSizeBytes, iovs[1].iov_len);
iovec iovs1[11];
EXPECT_EQ(10, buffer_->GetReadableRegions(iovs1, 11));
EXPECT_EQ(0.5 * kBlockSizeBytes, iovs1[8].iov_len);
EXPECT_EQ(512u, iovs1[9].iov_len);
EXPECT_EQ(std::string(512, 'b'), IovecToStringPiece(iovs1[9]));
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionEmpty) {
iovec iov;
EXPECT_FALSE(buffer_->GetReadableRegion(&iov));
EXPECT_EQ(nullptr, iov.iov_base);
EXPECT_EQ(0u, iov.iov_len);
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionBeforeGap) {
std::string source(1023, 'a');
buffer_->OnStreamData(1, source, &written_, &error_details_);
iovec iov;
EXPECT_FALSE(buffer_->GetReadableRegion(&iov));
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionTillEndOfBlock) {
std::string source(kBlockSizeBytes + 1, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
iovec iov;
EXPECT_TRUE(buffer_->GetReadableRegion(&iov));
EXPECT_EQ(std::string(kBlockSizeBytes - 256, 'a'), IovecToStringPiece(iov));
}
TEST_F(QuicStreamSequencerBufferTest, GetReadableRegionTillGap) {
std::string source(kBlockSizeBytes - 1, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
iovec iov;
EXPECT_TRUE(buffer_->GetReadableRegion(&iov));
EXPECT_EQ(std::string(kBlockSizeBytes - 1 - 256, 'a'),
IovecToStringPiece(iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekEmptyBuffer) {
iovec iov;
EXPECT_FALSE(buffer_->PeekRegion(0, &iov));
EXPECT_FALSE(buffer_->PeekRegion(1, &iov));
EXPECT_FALSE(buffer_->PeekRegion(100, &iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekSingleBlock) {
std::string source(kBlockSizeBytes, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
iovec iov;
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source, IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source, IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(100, &iov));
EXPECT_EQ(absl::string_view(source).substr(100), IovecToStringPiece(iov));
EXPECT_FALSE(buffer_->PeekRegion(kBlockSizeBytes, &iov));
EXPECT_FALSE(buffer_->PeekRegion(kBlockSizeBytes + 1, &iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekTwoWritesInSingleBlock) {
const size_t length1 = 1024;
std::string source1(length1, 'a');
buffer_->OnStreamData(0, source1, &written_, &error_details_);
iovec iov;
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source1, IovecToStringPiece(iov));
const size_t length2 = 800;
std::string source2(length2, 'b');
buffer_->OnStreamData(length1, source2, &written_, &error_details_);
EXPECT_TRUE(buffer_->PeekRegion(length1, &iov));
EXPECT_EQ(source2, IovecToStringPiece(iov));
const QuicStreamOffset offset1 = 500;
EXPECT_TRUE(buffer_->PeekRegion(offset1, &iov));
EXPECT_EQ(absl::string_view(source1).substr(offset1),
IovecToStringPiece(iov).substr(0, length1 - offset1));
EXPECT_EQ(absl::string_view(source2),
IovecToStringPiece(iov).substr(length1 - offset1));
const QuicStreamOffset offset2 = 1500;
EXPECT_TRUE(buffer_->PeekRegion(offset2, &iov));
EXPECT_EQ(absl::string_view(source2).substr(offset2 - length1),
IovecToStringPiece(iov));
EXPECT_FALSE(buffer_->PeekRegion(length1 + length2, &iov));
EXPECT_FALSE(buffer_->PeekRegion(length1 + length2 + 1, &iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekBufferWithMultipleBlocks) {
const size_t length1 = 1024;
std::string source1(length1, 'a');
buffer_->OnStreamData(0, source1, &written_, &error_details_);
iovec iov;
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source1, IovecToStringPiece(iov));
const size_t length2 = kBlockSizeBytes + 2;
std::string source2(length2, 'b');
buffer_->OnStreamData(length1, source2, &written_, &error_details_);
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(kBlockSizeBytes, iov.iov_len);
EXPECT_EQ(source1, IovecToStringPiece(iov).substr(0, length1));
EXPECT_EQ(absl::string_view(source2).substr(0, kBlockSizeBytes - length1),
IovecToStringPiece(iov).substr(length1));
EXPECT_TRUE(buffer_->PeekRegion(length1, &iov));
EXPECT_EQ(absl::string_view(source2).substr(0, kBlockSizeBytes - length1),
IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(kBlockSizeBytes, &iov));
EXPECT_EQ(absl::string_view(source2).substr(kBlockSizeBytes - length1),
IovecToStringPiece(iov));
EXPECT_FALSE(buffer_->PeekRegion(length1 + length2, &iov));
EXPECT_FALSE(buffer_->PeekRegion(length1 + length2 + 1, &iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekAfterConsumed) {
std::string source1(kBlockSizeBytes, 'a');
buffer_->OnStreamData(0, source1, &written_, &error_details_);
iovec iov;
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source1, IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->MarkConsumed(1024));
EXPECT_FALSE(buffer_->PeekRegion(0, &iov));
EXPECT_FALSE(buffer_->PeekRegion(512, &iov));
EXPECT_TRUE(buffer_->PeekRegion(1024, &iov));
EXPECT_EQ(absl::string_view(source1).substr(1024), IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(1500, &iov));
EXPECT_EQ(absl::string_view(source1).substr(1500), IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->MarkConsumed(kBlockSizeBytes - 1024));
std::string source2(300, 'b');
buffer_->OnStreamData(kBlockSizeBytes, source2, &written_, &error_details_);
EXPECT_TRUE(buffer_->PeekRegion(kBlockSizeBytes, &iov));
EXPECT_EQ(source2, IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(kBlockSizeBytes + 128, &iov));
EXPECT_EQ(absl::string_view(source2).substr(128), IovecToStringPiece(iov));
EXPECT_FALSE(buffer_->PeekRegion(0, &iov));
EXPECT_FALSE(buffer_->PeekRegion(512, &iov));
EXPECT_FALSE(buffer_->PeekRegion(1024, &iov));
EXPECT_FALSE(buffer_->PeekRegion(1500, &iov));
}
TEST_F(QuicStreamSequencerBufferTest, PeekContinously) {
std::string source1(kBlockSizeBytes, 'a');
buffer_->OnStreamData(0, source1, &written_, &error_details_);
iovec iov;
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source1, IovecToStringPiece(iov));
std::string source2(kBlockSizeBytes, 'b');
buffer_->OnStreamData(kBlockSizeBytes, source2, &written_, &error_details_);
EXPECT_TRUE(buffer_->PeekRegion(kBlockSizeBytes, &iov));
EXPECT_EQ(source2, IovecToStringPiece(iov));
EXPECT_TRUE(buffer_->PeekRegion(0, &iov));
EXPECT_EQ(source1, IovecToStringPiece(iov));
}
TEST_F(QuicStreamSequencerBufferTest, MarkConsumedInOneBlock) {
std::string source(1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
EXPECT_TRUE(buffer_->MarkConsumed(512));
EXPECT_EQ(256u + 512u, buffer_->BytesConsumed());
EXPECT_EQ(256u, helper_->ReadableBytes());
buffer_->MarkConsumed(256);
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, MarkConsumedNotEnoughBytes) {
std::string source(1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[256];
helper_->Read(dest, 256);
EXPECT_TRUE(buffer_->MarkConsumed(512));
EXPECT_EQ(256u + 512u, buffer_->BytesConsumed());
EXPECT_EQ(256u, helper_->ReadableBytes());
EXPECT_FALSE(buffer_->MarkConsumed(257));
EXPECT_EQ(256u + 512u, buffer_->BytesConsumed());
iovec iov;
EXPECT_TRUE(buffer_->GetReadableRegion(&iov));
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, MarkConsumedAcrossBlock) {
std::string source(2 * kBlockSizeBytes + 1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[1024];
helper_->Read(dest, 1024);
buffer_->MarkConsumed(2 * kBlockSizeBytes);
EXPECT_EQ(source.size(), buffer_->BytesConsumed());
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, MarkConsumedAcrossEnd) {
std::string source(8.5 * kBlockSizeBytes - 1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[1024];
helper_->Read(dest, 1024);
source = std::string(1024 + 512, 'b');
buffer_->OnStreamData(8.5 * kBlockSizeBytes - 1024, source, &written_,
&error_details_);
EXPECT_EQ(1024u, buffer_->BytesConsumed());
buffer_->MarkConsumed(8 * kBlockSizeBytes - 1024);
EXPECT_EQ(8 * kBlockSizeBytes, buffer_->BytesConsumed());
buffer_->MarkConsumed(0.5 * kBlockSizeBytes + 500);
EXPECT_EQ(max_capacity_bytes_ + 500, buffer_->BytesConsumed());
EXPECT_EQ(12u, helper_->ReadableBytes());
buffer_->MarkConsumed(12);
EXPECT_EQ(max_capacity_bytes_ + 512, buffer_->BytesConsumed());
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
}
TEST_F(QuicStreamSequencerBufferTest, FlushBufferedFrames) {
std::string source(max_capacity_bytes_ - 1024, 'a');
buffer_->OnStreamData(0, source, &written_, &error_details_);
char dest[1024];
helper_->Read(dest, 1024);
EXPECT_EQ(1024u, buffer_->BytesConsumed());
source = std::string(512, 'b');
buffer_->OnStreamData(max_capacity_bytes_, source, &written_,
&error_details_);
EXPECT_EQ(512u, written_);
EXPECT_EQ(max_capacity_bytes_ - 1024 + 512, buffer_->FlushBufferedFrames());
EXPECT_EQ(max_capacity_bytes_ + 512, buffer_->BytesConsumed());
EXPECT_TRUE(buffer_->Empty());
EXPECT_TRUE(helper_->CheckBufferInvariants());
buffer_->Clear();
EXPECT_EQ(max_capacity_bytes_ + 512, buffer_->BytesConsumed());
EXPECT_TRUE(helper_->CheckBuffe |
260 | cpp | google/quiche | quic_utils | quiche/quic/core/quic_utils.cc | quiche/quic/core/quic_utils_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_UTILS_H_
#define QUICHE_QUIC_CORE_QUIC_UTILS_H_
#include <cstddef>
#include <cstdint>
#include <initializer_list>
#include <optional>
#include <string>
#include <type_traits>
#include "absl/numeric/bits.h"
#include "absl/numeric/int128.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
namespace quic {
class QUICHE_EXPORT QuicUtils {
public:
QuicUtils() = delete;
static uint64_t FNV1a_64_Hash(absl::string_view data);
static absl::uint128 FNV1a_128_Hash(absl::string_view data);
static absl::uint128 FNV1a_128_Hash_Two(absl::string_view data1,
absl::string_view data2);
static absl::uint128 FNV1a_128_Hash_Three(absl::string_view data1,
absl::string_view data2,
absl::string_view data3);
static void SerializeUint128Short(absl::uint128 v, uint8_t* out);
static std::string AddressChangeTypeToString(AddressChangeType type);
static const char* SentPacketStateToString(SentPacketState state);
static const char* QuicLongHeaderTypetoString(QuicLongHeaderType type);
static const char* AckResultToString(AckResult result);
static AddressChangeType DetermineAddressChangeType(
const QuicSocketAddress& old_address,
const QuicSocketAddress& new_address);
static constexpr Perspective InvertPerspective(Perspective perspective) {
return perspective == Perspective::IS_CLIENT ? Perspective::IS_SERVER
: Perspective::IS_CLIENT;
}
static bool IsAckable(SentPacketState state);
static bool IsRetransmittableFrame(QuicFrameType type);
static bool IsHandshakeFrame(const QuicFrame& frame,
QuicTransportVersion transport_version);
static bool ContainsFrameType(const QuicFrames& frames, QuicFrameType type);
static SentPacketState RetransmissionTypeToPacketState(
TransmissionType retransmission_type);
static bool IsIetfPacketHeader(uint8_t first_byte);
static bool IsIetfPacketShortHeader(uint8_t first_byte);
static QuicStreamId GetInvalidStreamId(QuicTransportVersion version);
static QuicStreamId GetCryptoStreamId(QuicTransportVersion version);
static bool IsCryptoStreamId(QuicTransportVersion version, QuicStreamId id);
static QuicStreamId GetHeadersStreamId(QuicTransportVersion version);
static bool IsClientInitiatedStreamId(QuicTransportVersion version,
QuicStreamId id);
static bool IsServerInitiatedStreamId(QuicTransportVersion version,
QuicStreamId id);
static bool IsOutgoingStreamId(ParsedQuicVersion version, QuicStreamId id,
Perspective perspective);
static bool IsBidirectionalStreamId(QuicStreamId id,
ParsedQuicVersion version);
static StreamType GetStreamType(QuicStreamId id, Perspective perspective,
bool peer_initiated,
ParsedQuicVersion version);
static QuicStreamId StreamIdDelta(QuicTransportVersion version);
static QuicStreamId GetFirstBidirectionalStreamId(
QuicTransportVersion version, Perspective perspective);
static QuicStreamId GetFirstUnidirectionalStreamId(
QuicTransportVersion version, Perspective perspective);
static QuicStreamId GetMaxClientInitiatedBidirectionalStreamId(
QuicTransportVersion version);
static QuicConnectionId CreateRandomConnectionId();
static QuicConnectionId CreateRandomConnectionId(QuicRandom* random);
static QuicConnectionId CreateRandomConnectionId(
uint8_t connection_id_length);
static QuicConnectionId CreateRandomConnectionId(uint8_t connection_id_length,
QuicRandom* random);
static bool IsConnectionIdLengthValidForVersion(
size_t connection_id_length, QuicTransportVersion transport_version);
static bool IsConnectionIdValidForVersion(
QuicConnectionId connection_id, QuicTransportVersion transport_version);
static QuicConnectionId CreateZeroConnectionId(QuicTransportVersion version);
static StatelessResetToken GenerateStatelessResetToken(
QuicConnectionId connection_id);
static PacketNumberSpace GetPacketNumberSpace(
EncryptionLevel encryption_level);
static EncryptionLevel GetEncryptionLevelToSendAckofSpace(
PacketNumberSpace packet_number_space);
static QuicStreamCount GetMaxStreamCount();
static bool IsProbingFrame(QuicFrameType type);
static bool AreStatelessResetTokensEqual(const StatelessResetToken& token1,
const StatelessResetToken& token2);
static bool IsAckElicitingFrame(QuicFrameType type);
};
bool IsValidWebTransportSessionId(WebTransportSessionId id,
ParsedQuicVersion transport_version);
QuicByteCount MemSliceSpanTotalSize(absl::Span<quiche::QuicheMemSlice> span);
QUICHE_EXPORT std::string RawSha256(absl::string_view input);
template <typename Index, typename Mask = uint64_t>
class QUICHE_EXPORT BitMask {
public:
explicit constexpr BitMask(std::initializer_list<Index> bits) {
for (Index bit : bits) {
mask_ |= MakeMask(bit);
}
}
BitMask() = default;
BitMask(const BitMask& other) = default;
BitMask& operator=(const BitMask& other) = default;
constexpr void Set(Index bit) { mask_ |= MakeMask(bit); }
constexpr void Set(std::initializer_list<Index> bits) {
mask_ |= BitMask(bits).mask();
}
constexpr bool IsSet(Index bit) const { return (MakeMask(bit) & mask_) != 0; }
constexpr void ClearAll() { mask_ = 0; }
bool Any() const { return mask_ != 0; }
std::optional<Index> Max() const {
if (!Any()) {
return std::nullopt;
}
return static_cast<Index>(NumBits() - absl::countl_zero(mask_) - 1);
}
static constexpr size_t NumBits() { return 8 * sizeof(Mask); }
friend bool operator==(const BitMask& lhs, const BitMask& rhs) {
return lhs.mask_ == rhs.mask_;
}
BitMask<Index, Mask> operator&(const BitMask<Index, Mask>& rhs) const {
return BitMask<Index, Mask>(mask_ & rhs.mask_);
}
std::string DebugString() const {
return absl::StrCat("0x", absl::Hex(mask_));
}
constexpr Mask mask() const { return mask_; }
private:
explicit constexpr BitMask(Mask mask) : mask_(mask) {}
template <typename Bit>
static constexpr std::enable_if_t<std::is_enum_v<Bit>, Mask> MakeMask(
Bit bit) {
using IntType = typename std::underlying_type<Bit>::type;
return MakeMask(static_cast<IntType>(bit));
}
template <typename Bit>
static constexpr std::enable_if_t<!std::is_enum_v<Bit>, Mask> MakeMask(
Bit bit) {
QUICHE_DCHECK(bit < static_cast<Bit>(NumBits()));
if constexpr (std::is_signed_v<Bit>) {
QUICHE_DCHECK(bit >= 0);
}
return Mask(1) << bit;
}
Mask mask_ = 0;
};
static_assert(BitMask<int>({1, 2, 3}).mask() == 0x0e);
}
#endif
#include "quiche/quic/core/quic_utils.h"
#include <algorithm>
#include <cstdint>
#include <cstring>
#include <limits>
#include <string>
#include "absl/base/macros.h"
#include "absl/base/optimization.h"
#include "absl/numeric/int128.h"
#include "absl/strings/string_view.h"
#include "openssl/sha.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
namespace {
#if defined(__x86_64__) && \
((defined(__GNUC__) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) || \
defined(__clang__))
#define QUIC_UTIL_HAS_UINT128 1
#endif
#ifdef QUIC_UTIL_HAS_UINT128
absl::uint128 IncrementalHashFast(absl::uint128 uhash, absl::string_view data) {
static const absl::uint128 kPrime =
(static_cast<absl::uint128>(16777216) << 64) + 315;
auto hi = absl::Uint128High64(uhash);
auto lo = absl::Uint128Low64(uhash);
absl::uint128 xhash = (static_cast<absl::uint128>(hi) << 64) + lo;
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data.data());
for (size_t i = 0; i < data.length(); ++i) {
xhash = (xhash ^ static_cast<uint32_t>(octets[i])) * kPrime;
}
return absl::MakeUint128(absl::Uint128High64(xhash),
absl::Uint128Low64(xhash));
}
#endif
#ifndef QUIC_UTIL_HAS_UINT128
absl::uint128 IncrementalHashSlow(absl::uint128 hash, absl::string_view data) {
static const absl::uint128 kPrime = absl::MakeUint128(16777216, 315);
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data.data());
for (size_t i = 0; i < data.length(); ++i) {
hash = hash ^ absl::MakeUint128(0, octets[i]);
hash = hash * kPrime;
}
return hash;
}
#endif
absl::uint128 IncrementalHash(absl::uint128 hash, absl::string_view data) {
#ifdef QUIC_UTIL_HAS_UINT128
return IncrementalHashFast(hash, data);
#else
return IncrementalHashSlow(hash, data);
#endif
}
}
uint64_t QuicUtils::FNV1a_64_Hash(absl::string_view data) {
static const uint64_t kOffset = UINT64_C(14695981039346656037);
static const uint64_t kPrime = UINT64_C(1099511628211);
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data.data());
uint64_t hash = kOffset;
for (size_t i = 0; i < data.length(); ++i) {
hash = hash ^ octets[i];
hash = hash * kPrime;
}
return hash;
}
absl::uint128 QuicUtils::FNV1a_128_Hash(absl::string_view data) {
return FNV1a_128_Hash_Three(data, absl::string_view(), absl::string_view());
}
absl::uint128 QuicUtils::FNV1a_128_Hash_Two(absl::string_view data1,
absl::string_view data2) {
return FNV1a_128_Hash_Three(data1, data2, absl::string_view());
}
absl::uint128 QuicUtils::FNV1a_128_Hash_Three(absl::string_view data1,
absl::string_view data2,
absl::string_view data3) {
const absl::uint128 kOffset = absl::MakeUint128(
UINT64_C(7809847782465536322), UINT64_C(7113472399480571277));
absl::uint128 hash = IncrementalHash(kOffset, data1);
if (data2.empty()) {
return hash;
}
hash = IncrementalHash(hash, data2);
if (data3.empty()) {
return hash;
}
return IncrementalHash(hash, data3);
}
void QuicUtils::SerializeUint128Short(absl::uint128 v, uint8_t* out) {
const uint64_t lo = absl::Uint128Low64(v);
const uint64_t hi = absl::Uint128High64(v);
memcpy(out, &lo, sizeof(lo));
memcpy(out + sizeof(lo), &hi, sizeof(hi) / 2);
}
#define RETURN_STRING_LITERAL(x) \
case x: \
return #x;
std::string QuicUtils::AddressChangeTypeToString(AddressChangeType type) {
switch (type) {
RETURN_STRING_LITERAL(NO_CHANGE);
RETURN_STRING_LITERAL(PORT_CHANGE);
RETURN_STRING_LITERAL(IPV4_SUBNET_CHANGE);
RETURN_STRING_LITERAL(IPV4_TO_IPV6_CHANGE);
RETURN_STRING_LITERAL(IPV6_TO_IPV4_CHANGE);
RETURN_STRING_LITERAL(IPV6_TO_IPV6_CHANGE);
RETURN_STRING_LITERAL(IPV4_TO_IPV4_CHANGE);
}
return "INVALID_ADDRESS_CHANGE_TYPE";
}
const char* QuicUtils::SentPacketStateToString(SentPacketState state) {
switch (state) {
RETURN_STRING_LITERAL(OUTSTANDING);
RETURN_STRING_LITERAL(NEVER_SENT);
RETURN_STRING_LITERAL(ACKED);
RETURN_STRING_LITERAL(UNACKABLE);
RETURN_STRING_LITERAL(NEUTERED);
RETURN_STRING_LITERAL(HANDSHAKE_RETRANSMITTED);
RETURN_STRING_LITERAL(LOST);
RETURN_STRING_LITERAL(PTO_RETRANSMITTED);
RETURN_STRING_LITERAL(NOT_CONTRIBUTING_RTT);
}
return "INVALID_SENT_PACKET_STATE";
}
const char* QuicUtils::QuicLongHeaderTypetoString(QuicLongHeaderType type) {
switch (type) {
RETURN_STRING_LITERAL(VERSION_NEGOTIATION);
RETURN_STRING_LITERAL(INITIAL);
RETURN_STRING_LITERAL(RETRY);
RETURN_STRING_LITERAL(HANDSHAKE);
RETURN_STRING_LITERAL(ZERO_RTT_PROTECTED);
default:
return "INVALID_PACKET_TYPE";
}
}
const char* QuicUtils::AckResultToString(AckResult result) {
switch (result) {
RETURN_STRING_LITERAL(PACKETS_NEWLY_ACKED);
RETURN_STRING_LITERAL(NO_PACKETS_NEWLY_ACKED);
RETURN_STRING_LITERAL(UNSENT_PACKETS_ACKED);
RETURN_STRING_LITERAL(UNACKABLE_PACKETS_ACKED);
RETURN_STRING_LITERAL(PACKETS_ACKED_IN_WRONG_PACKET_NUMBER_SPACE);
}
return "INVALID_ACK_RESULT";
}
AddressChangeType QuicUtils::DetermineAddressChangeType(
const QuicSocketAddress& old_address,
const QuicSocketAddress& new_address) {
if (!old_address.IsInitialized() || !new_address.IsInitialized() ||
old_address == new_address) {
return NO_CHANGE;
}
if (old_address.host() == new_address.host()) {
return PORT_CHANGE;
}
bool old_ip_is_ipv4 = old_address.host().IsIPv4() ? true : false;
bool migrating_ip_is_ipv4 = new_address.host().IsIPv4() ? true : false;
if (old_ip_is_ipv4 && !migrating_ip_is_ipv4) {
return IPV4_TO_IPV6_CHANGE;
}
if (!old_ip_is_ipv4) {
return migrating_ip_is_ipv4 ? IPV6_TO_IPV4_CHANGE : IPV6_TO_IPV6_CHANGE;
}
const int kSubnetMaskLength = 24;
if (old_address.host().InSameSubnet(new_address.host(), kSubnetMaskLength)) {
return IPV4_SUBNET_CHANGE;
}
return IPV4_TO_IPV4_CHANGE;
}
bool QuicUtils::IsAckable(SentPacketState state) {
return state != NEVER_SENT && state != ACKED && state != UNACKABLE;
}
bool QuicUtils::IsRetransmittableFrame(QuicFrameType type) {
switch (type) {
case ACK_FRAME:
case PADDING_FRAME:
case STOP_WAITING_FRAME:
case MTU_DISCOVERY_FRAME:
case PATH_CHALLENGE_FRAME:
case PATH_RESPONSE_FRAME:
return false;
default:
return true;
}
}
bool QuicUtils::IsHandshakeFrame(const QuicFrame& frame,
QuicTransportVersion transport_version) {
if (!QuicVersionUsesCryptoFrames(transport_version)) {
return frame.type == STREAM_FRAME &&
frame.stream_frame.stream_id == GetCryptoStreamId(transport_version);
} else {
return frame.type == CRYPTO_FRAME;
}
}
bool QuicUtils::ContainsFrameType(const QuicFrames& frames,
QuicFrameType type) {
for (const QuicFrame& frame : frames) {
if (frame.type == type) {
return true;
}
}
return false;
}
SentPacketState QuicUtils::RetransmissionTypeToPacketState(
TransmissionType retransmission_type) {
switch (retransmission_type) {
case ALL_ZERO_RTT_RETRANSMISSION:
return UNACKABLE;
case HANDSHAKE_RETRANSMISSION:
return HANDSHAKE_RETRANSMITTED;
case LOSS_RETRANSMISSION:
return LOST;
case PTO_RETRANSMISSION:
return PTO_RETRANSMITTED;
case PATH_RETRANSMISSION:
return NOT_CONTRIBUTING_RTT;
case ALL_INITIAL_RETRANSMISSION:
return UNACKABLE;
default:
QUIC_BUG(quic_bug_10839_2)
<< retransmission_type << " is not a retransmission_type";
return UNACKABLE;
}
}
bool QuicUtils::IsIetfPacketHeader(uint8_t first_byte) {
return (first_byte & FLAGS_LONG_HEADER) || (first_byte & FLAGS_FIXED_BIT) ||
!(first_byte & FLAGS_DEMULTIPLEXING_BIT);
}
bool QuicUtils::IsIetfPacketShortHeader(uint8_t first_byte) {
return IsIetfPacketHeader(first_byte) && !(first_byte & FLAGS_LONG_HEADER);
}
QuicStreamId QuicUtils::GetInvalidStreamId(QuicTransportVersion version) {
return VersionHasIetfQuicFrames(version)
? std::numeric_limits<QuicStreamId>::max()
: 0;
}
QuicStreamId QuicUtils::GetCryptoStreamId(QuicTransportVersion version) {
QUIC_BUG_IF(quic_bug_12982_1, QuicVersionUsesCryptoFrames(version))
<< "CRYPTO data aren't in stream frames; they have no stream ID.";
return QuicVersionUsesCryptoFrames(version) ? GetInvalidStreamId(version) : 1;
}
bool QuicUtils::IsCryptoStreamId(QuicTransportVersion version,
QuicStreamId stream_id) {
if (QuicVersionUsesCryptoFrames(version)) {
return false;
}
return stream_id == GetCryptoStreamId(version);
}
QuicStreamId QuicUtils::GetHeadersStreamId(QuicTransportVersion version) {
QUICHE_DCHECK(!VersionUsesHttp3(version));
return GetFirstBidirectionalStreamId(version, Perspective::IS_CLIENT);
}
bool QuicUtils::IsClientInitiatedStreamId(QuicTransportVersion version,
QuicStreamId id) {
if (id == GetInvalidStreamId(version)) {
return false;
}
return VersionHasIetfQuicFrames(version) ? id % 2 == 0 : id % 2 != 0;
}
bool QuicUtils::IsServerInitiatedStreamId(QuicTransportVersion version,
QuicStreamId id) {
if (id == GetInvalidStreamId(version)) {
return false;
}
return VersionHasIetfQuicFrames(version) ? id % 2 != 0 : id % 2 == 0;
}
bool QuicUtils::IsOutgoingStreamId(ParsedQuicVersion version, QuicStreamId id,
Perspective perspective) {
const bool perspective_is_server = perspective == Perspective::IS_SERVER;
const bool stream_is_server =
QuicUtils::IsServerInitiatedStreamId(version.transport_version, id);
return perspective_is_server == stream_is_server;
}
bool QuicUtils::IsBidirectionalStreamId(QuicStreamId id,
ParsedQuicVersion version) {
QUICHE_DCHECK(version.HasIetfQuicFrames());
return id % 4 < 2;
}
StreamType QuicUtils::GetStreamType(QuicStreamId id, Perspective perspective,
bool peer_initiated,
ParsedQuicVersion version) {
QUICHE_DCHECK(version.HasIetfQuicFrames());
if (IsBidirectionalStreamId(id, version)) {
return BIDIRECTIONAL;
}
if (peer_initiated) {
if (perspective == Perspective::IS_SERVER) {
QUICHE_DCHECK_EQ(2u, id % 4);
} else {
QUICHE_DCHECK_EQ(Perspective::IS_CLIENT, perspective);
QUICHE_DCHECK_EQ(3u, id % 4);
}
return READ_UNIDIRECTIONAL;
}
if (perspective == Perspective::IS_SERVER) {
QUICHE_DCHECK_EQ(3u, id % 4);
} else {
QUICHE_DCHECK_EQ(Perspective::IS_CLIENT, perspective);
QUICHE_DCHECK_EQ(2u, id % 4);
}
return WRITE_UNIDIRECTIONAL;
}
QuicStreamId QuicUtils::StreamIdDelta(QuicTransportVersion version) {
return VersionHasIetfQuicFrames(version) ? 4 : 2;
}
QuicStreamId QuicUtils::GetFirstBidirectionalStreamId(
QuicTransportVersion version, Perspective perspective) {
if (VersionHasIetfQuicFrames(version)) {
return perspective == Perspective::IS_CLIENT ? 0 : 1;
} else if (QuicVersionUsesCryptoFrames(version)) {
return perspective == Perspective::IS_CLIENT ? 1 : 2;
}
return perspective == Perspective::IS_CLIENT ? 3 : 2;
}
QuicStreamId QuicUtils::GetFirstUnidirectionalStreamId(
QuicTransportVersion version, Perspective perspective) {
if (VersionHasIetfQuicFrames(version)) {
return perspective == Perspective::IS_CLIENT ? 2 : 3;
} else if (QuicVersionUsesCryptoFrames(version)) {
return perspective == Perspective::IS_CLIENT ? 1 : 2;
}
return perspective == Perspective::IS_CLIENT ? 3 : 2;
}
QuicStreamId QuicUtils::GetMaxClientInitiatedBidirectionalStreamId(
QuicTransportVersion version) {
if (VersionHasIetfQuicFrames(version)) {
return std::numeric_limits<QuicStreamId>::max() - 3;
}
return std::numeric_limits<QuicStreamId>::max();
}
QuicConnectionId QuicUtils::CreateRandomConnectionId() {
return CreateRandomConnectionId(kQuicDefaultConnectionIdLength,
QuicRandom::GetInstance());
}
QuicConnectionId QuicUtils::CreateRandomConnectionId(QuicRandom* random) {
return CreateRandomConnectionId(kQuicDefaultConnectionIdLength, random);
}
QuicConnectionId QuicUtils::CreateRandomConnectionId(
uint8_t connection_id_length) {
return CreateRandomConnectionId(connection_id_length,
QuicRandom::GetInstance());
}
QuicConnectionId QuicUtils::CreateRandomConnectionId(
uint8_t connection_id_length, QuicRandom* random) {
QuicConnectionId connection_id;
connection_id.set_length(connection_id_length);
if (connection_id.length() > 0) {
random->RandBytes(connection_id.mutable_data(), connection_id.length());
}
return connection_id;
}
QuicConnectionId QuicUtils::CreateZeroConnectionId(
QuicTransportVersion version) {
if (!VersionAllowsVariableLengthConnectionIds(version)) {
char connection_id_bytes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
return QuicConnectionId(static_cast<char*>(connection_id_bytes),
ABSL_ARRAYSIZE(connection_id_bytes));
}
return EmptyQuicConnectionId();
}
bool QuicUtils::IsConnectionIdLengthValidForVersion(
size_t connection_id_length, QuicTransportVersion transport_version) {
if (connection_id_length >
static_cast<size_t>(std::numeric_limits<uint8_t>::max())) {
return false;
}
if (transport_version == QUIC_VERSION_UNSUPPORTED ||
transport_version == QUIC_VERSION_RESERVED_FOR_NEGOTIATION) {
return true;
}
const uint8_t connection_id_length8 =
static_cast<uint8_t>(connection_id_length);
if (!VersionAllowsVariableLengthConnectionIds(transport_version)) {
return connection_id_length8 == kQuicDefaultConnectionIdLength;
}
return connection_id_length8 <= kQuicMaxConnectionIdWithLengthPrefixLength;
}
bool QuicUtils::IsConnectionIdValidForVersion(
QuicConnectionId connection_id, QuicTransportVersion transport_version) {
return IsConnectionIdLengthValidForVersion(connection_id.length(),
transport_version);
}
StatelessResetToken QuicUtils::GenerateStatelessResetToken(
QuicConnectionId connection_id) {
static_assert(sizeof(absl::uint128) == sizeof(StatelessResetToken),
"bad size");
static_assert(alignof(absl::uint128) >= alignof(StatelessResetToken),
"bad alignment");
absl::uint128 hash = FNV1a_128_Hash(
absl::string_view(connection_id.data(), connection_id.length()));
return *reinterpret_cast<StatelessResetToken*>(&hash);
}
QuicStreamCount QuicUtils::GetMaxStreamCount() {
return (kMaxQuicStreamCount >> 2) + 1;
}
PacketNumberSpace QuicUtils::GetPacketNumberSpace(
EncryptionLevel encryption_level) {
switch (encryption_level) {
case ENCRYPTION_INITIAL:
return INITIAL_DATA;
case ENCRYPTION_HANDSHAKE:
return HANDSHAKE_DATA;
case ENCRYPTION_ZERO_RTT:
case ENCRYPTION_FORWARD_SECURE:
return APPLICATION_DATA;
default:
QUIC_BUG(quic_bug_10839_3)
<< "Try to get packet number space of encryption level: "
<< encryption_level;
return NUM_PACKET_NUMBER_SPACES;
}
}
EncryptionLevel QuicUtils::GetEncryptionLevelToSendAckofSpace(
PacketNumberSpace packet_number_space) {
switch (packet_number_space) {
case INITIAL_DATA:
return ENCRYPTION_INITIAL;
case HANDSHAKE_DATA:
return ENCRYPTION_HANDSHAKE;
case APPLICATION_DATA:
return ENCRYPTION_FORWARD_SECURE;
default:
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
}
bool QuicUtils::IsProbingFrame(QuicFrameType type) {
switch (type) {
case PATH_CHALLENGE_FRAME:
case PATH_RESPONSE_FRAME:
case NEW_CONNECTION_ID_FRAME:
case PADDING_FRAME:
return true;
default:
return false;
}
}
bool QuicUtils::IsAckElicitingFrame(QuicFrameType type) {
switch (type) {
case PADDING_FRAME:
case STOP_WAITING_FRAME:
case ACK_FRAME:
case CONNECTION_CLOSE_FRAME:
return false;
default:
return true;
}
}
bool QuicUtils::AreStatelessResetTokensEqual(
const StatelessResetToken& token1, const StatelessResetToken& token2) {
char byte = 0;
for (size_t i = 0; i < kStatelessResetTokenLength; i++) {
byte |= (token1[i] ^ token2[i]);
}
return byte == 0;
}
bool IsValidWebTransportSessionId(WebTransportSessionId id,
ParsedQuicVersion version) {
QUICHE_DCHECK(version.UsesHttp3());
return (id <= std::numeric_limits<QuicStreamId>::max()) &&
QuicUtils::IsBidirectionalStreamId(id, version) &&
QuicUtils::IsClientInitiatedStreamId(version.transport_version, id);
}
QuicByteCount MemSliceSpanTotalSize(absl::Span<quiche::QuicheMemSlice> span) {
QuicByteCount total = 0;
for (const quiche::QuicheMemSlice& slice : span) {
total += slice.length();
}
return total;
}
std: | #include "quiche/quic/core/quic_utils.h"
#include <string>
#include <vector>
#include "absl/base/macros.h"
#include "absl/numeric/int128.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
class QuicUtilsTest : public QuicTest {};
TEST_F(QuicUtilsTest, DetermineAddressChangeType) {
const std::string kIPv4String1 = "1.2.3.4";
const std::string kIPv4String2 = "1.2.3.5";
const std::string kIPv4String3 = "1.1.3.5";
const std::string kIPv6String1 = "2001:700:300:1800::f";
const std::string kIPv6String2 = "2001:700:300:1800:1:1:1:f";
QuicSocketAddress old_address;
QuicSocketAddress new_address;
QuicIpAddress address;
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = QuicSocketAddress(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv6String1));
old_address = QuicSocketAddress(address, 1234);
new_address = QuicSocketAddress(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv6String1));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv4String1));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV6_TO_IPV4_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv6String2));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV6_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String1));
old_address = QuicSocketAddress(address, 1234);
ASSERT_TRUE(address.FromString(kIPv4String2));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_SUBNET_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.FromString(kIPv4String3));
new_address = QuicSocketAddress(address, 1234);
EXPECT_EQ(IPV4_TO_IPV4_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
}
absl::uint128 IncrementalHashReference(const void* data, size_t len) {
absl::uint128 hash = absl::MakeUint128(UINT64_C(7809847782465536322),
UINT64_C(7113472399480571277));
const absl::uint128 kPrime = absl::MakeUint128(16777216, 315);
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data);
for (size_t i = 0; i < len; ++i) {
hash = hash ^ absl::MakeUint128(0, octets[i]);
hash = hash * kPrime;
}
return hash;
}
TEST_F(QuicUtilsTest, ReferenceTest) {
std::vector<uint8_t> data(32);
for (size_t i = 0; i < data.size(); ++i) {
data[i] = i % 255;
}
EXPECT_EQ(IncrementalHashReference(data.data(), data.size()),
QuicUtils::FNV1a_128_Hash(absl::string_view(
reinterpret_cast<const char*>(data.data()), data.size())));
}
TEST_F(QuicUtilsTest, IsUnackable) {
for (size_t i = FIRST_PACKET_STATE; i <= LAST_PACKET_STATE; ++i) {
if (i == NEVER_SENT || i == ACKED || i == UNACKABLE) {
EXPECT_FALSE(QuicUtils::IsAckable(static_cast<SentPacketState>(i)));
} else {
EXPECT_TRUE(QuicUtils::IsAckable(static_cast<SentPacketState>(i)));
}
}
}
TEST_F(QuicUtilsTest, RetransmissionTypeToPacketState) {
for (size_t i = FIRST_TRANSMISSION_TYPE; i <= LAST_TRANSMISSION_TYPE; ++i) {
if (i == NOT_RETRANSMISSION) {
continue;
}
SentPacketState state = QuicUtils::RetransmissionTypeToPacketState(
static_cast<TransmissionType>(i));
if (i == HANDSHAKE_RETRANSMISSION) {
EXPECT_EQ(HANDSHAKE_RETRANSMITTED, state);
} else if (i == LOSS_RETRANSMISSION) {
EXPECT_EQ(LOST, state);
} else if (i == ALL_ZERO_RTT_RETRANSMISSION) {
EXPECT_EQ(UNACKABLE, state);
} else if (i == PTO_RETRANSMISSION) {
EXPECT_EQ(PTO_RETRANSMITTED, state);
} else if (i == PATH_RETRANSMISSION) {
EXPECT_EQ(NOT_CONTRIBUTING_RTT, state);
} else if (i == ALL_INITIAL_RETRANSMISSION) {
EXPECT_EQ(UNACKABLE, state);
} else {
QUICHE_DCHECK(false)
<< "No corresponding packet state according to transmission type: "
<< i;
}
}
}
TEST_F(QuicUtilsTest, IsIetfPacketHeader) {
uint8_t first_byte = 0;
EXPECT_TRUE(QuicUtils::IsIetfPacketHeader(first_byte));
EXPECT_TRUE(QuicUtils::IsIetfPacketShortHeader(first_byte));
first_byte |= (FLAGS_LONG_HEADER | FLAGS_DEMULTIPLEXING_BIT);
EXPECT_TRUE(QuicUtils::IsIetfPacketHeader(first_byte));
EXPECT_FALSE(QuicUtils::IsIetfPacketShortHeader(first_byte));
first_byte = 0;
first_byte |= FLAGS_LONG_HEADER;
EXPECT_TRUE(QuicUtils::IsIetfPacketHeader(first_byte));
EXPECT_FALSE(QuicUtils::IsIetfPacketShortHeader(first_byte));
first_byte = 0;
first_byte |= PACKET_PUBLIC_FLAGS_8BYTE_CONNECTION_ID;
EXPECT_FALSE(QuicUtils::IsIetfPacketHeader(first_byte));
EXPECT_FALSE(QuicUtils::IsIetfPacketShortHeader(first_byte));
}
TEST_F(QuicUtilsTest, RandomConnectionId) {
MockRandom random(33);
QuicConnectionId connection_id = QuicUtils::CreateRandomConnectionId(&random);
EXPECT_EQ(connection_id.length(), sizeof(uint64_t));
char connection_id_bytes[sizeof(uint64_t)];
random.RandBytes(connection_id_bytes, ABSL_ARRAYSIZE(connection_id_bytes));
EXPECT_EQ(connection_id,
QuicConnectionId(static_cast<char*>(connection_id_bytes),
ABSL_ARRAYSIZE(connection_id_bytes)));
EXPECT_NE(connection_id, EmptyQuicConnectionId());
EXPECT_NE(connection_id, TestConnectionId());
EXPECT_NE(connection_id, TestConnectionId(1));
EXPECT_NE(connection_id, TestConnectionIdNineBytesLong(1));
EXPECT_EQ(QuicUtils::CreateRandomConnectionId().length(),
kQuicDefaultConnectionIdLength);
}
TEST_F(QuicUtilsTest, RandomConnectionIdVariableLength) {
MockRandom random(1337);
const uint8_t connection_id_length = 9;
QuicConnectionId connection_id =
QuicUtils::CreateRandomConnectionId(connection_id_length, &random);
EXPECT_EQ(connection_id.length(), connection_id_length);
char connection_id_bytes[connection_id_length];
random.RandBytes(connection_id_bytes, ABSL_ARRAYSIZE(connection_id_bytes));
EXPECT_EQ(connection_id,
QuicConnectionId(static_cast<char*>(connection_id_bytes),
ABSL_ARRAYSIZE(connection_id_bytes)));
EXPECT_NE(connection_id, EmptyQuicConnectionId());
EXPECT_NE(connection_id, TestConnectionId());
EXPECT_NE(connection_id, TestConnectionId(1));
EXPECT_NE(connection_id, TestConnectionIdNineBytesLong(1));
EXPECT_EQ(QuicUtils::CreateRandomConnectionId(connection_id_length).length(),
connection_id_length);
}
TEST_F(QuicUtilsTest, VariableLengthConnectionId) {
EXPECT_FALSE(VersionAllowsVariableLengthConnectionIds(QUIC_VERSION_46));
EXPECT_TRUE(QuicUtils::IsConnectionIdValidForVersion(
QuicUtils::CreateZeroConnectionId(QUIC_VERSION_46), QUIC_VERSION_46));
EXPECT_NE(QuicUtils::CreateZeroConnectionId(QUIC_VERSION_46),
EmptyQuicConnectionId());
EXPECT_FALSE(QuicUtils::IsConnectionIdValidForVersion(EmptyQuicConnectionId(),
QUIC_VERSION_46));
}
TEST_F(QuicUtilsTest, StatelessResetToken) {
QuicConnectionId connection_id1a = test::TestConnectionId(1);
QuicConnectionId connection_id1b = test::TestConnectionId(1);
QuicConnectionId connection_id2 = test::TestConnectionId(2);
StatelessResetToken token1a =
QuicUtils::GenerateStatelessResetToken(connection_id1a);
StatelessResetToken token1b =
QuicUtils::GenerateStatelessResetToken(connection_id1b);
StatelessResetToken token2 =
QuicUtils::GenerateStatelessResetToken(connection_id2);
EXPECT_EQ(token1a, token1b);
EXPECT_NE(token1a, token2);
EXPECT_TRUE(QuicUtils::AreStatelessResetTokensEqual(token1a, token1b));
EXPECT_FALSE(QuicUtils::AreStatelessResetTokensEqual(token1a, token2));
}
TEST_F(QuicUtilsTest, EcnCodepointToString) {
EXPECT_EQ(EcnCodepointToString(ECN_NOT_ECT), "Not-ECT");
EXPECT_EQ(EcnCodepointToString(ECN_ECT0), "ECT(0)");
EXPECT_EQ(EcnCodepointToString(ECN_ECT1), "ECT(1)");
EXPECT_EQ(EcnCodepointToString(ECN_CE), "CE");
}
enum class TestEnumClassBit : uint8_t {
BIT_ZERO = 0,
BIT_ONE,
BIT_TWO,
};
enum TestEnumBit {
TEST_BIT_0 = 0,
TEST_BIT_1,
TEST_BIT_2,
};
TEST(QuicBitMaskTest, EnumClass) {
BitMask<TestEnumClassBit> mask(
{TestEnumClassBit::BIT_ZERO, TestEnumClassBit::BIT_TWO});
EXPECT_TRUE(mask.IsSet(TestEnumClassBit::BIT_ZERO));
EXPECT_FALSE(mask.IsSet(TestEnumClassBit::BIT_ONE));
EXPECT_TRUE(mask.IsSet(TestEnumClassBit::BIT_TWO));
mask.ClearAll();
EXPECT_FALSE(mask.IsSet(TestEnumClassBit::BIT_ZERO));
EXPECT_FALSE(mask.IsSet(TestEnumClassBit::BIT_ONE));
EXPECT_FALSE(mask.IsSet(TestEnumClassBit::BIT_TWO));
}
TEST(QuicBitMaskTest, Enum) {
BitMask<TestEnumBit> mask({TEST_BIT_1, TEST_BIT_2});
EXPECT_FALSE(mask.IsSet(TEST_BIT_0));
EXPECT_TRUE(mask.IsSet(TEST_BIT_1));
EXPECT_TRUE(mask.IsSet(TEST_BIT_2));
mask.ClearAll();
EXPECT_FALSE(mask.IsSet(TEST_BIT_0));
EXPECT_FALSE(mask.IsSet(TEST_BIT_1));
EXPECT_FALSE(mask.IsSet(TEST_BIT_2));
}
TEST(QuicBitMaskTest, Integer) {
BitMask<int> mask({1, 3});
EXPECT_EQ(mask.Max(), 3);
mask.Set(3);
mask.Set({5, 7, 9});
EXPECT_EQ(mask.Max(), 9);
EXPECT_FALSE(mask.IsSet(0));
EXPECT_TRUE(mask.IsSet(1));
EXPECT_FALSE(mask.IsSet(2));
EXPECT_TRUE(mask.IsSet(3));
EXPECT_FALSE(mask.IsSet(4));
EXPECT_TRUE(mask.IsSet(5));
EXPECT_FALSE(mask.IsSet(6));
EXPECT_TRUE(mask.IsSet(7));
EXPECT_FALSE(mask.IsSet(8));
EXPECT_TRUE(mask.IsSet(9));
}
TEST(QuicBitMaskTest, NumBits) {
EXPECT_EQ(64u, BitMask<int>::NumBits());
EXPECT_EQ(32u, (BitMask<int, uint32_t>::NumBits()));
}
TEST(QuicBitMaskTest, Constructor) {
BitMask<int> empty_mask;
for (size_t bit = 0; bit < empty_mask.NumBits(); ++bit) {
EXPECT_FALSE(empty_mask.IsSet(bit));
}
BitMask<int> mask({1, 3});
BitMask<int> mask2 = mask;
BitMask<int> mask3(mask2);
for (size_t bit = 0; bit < mask.NumBits(); ++bit) {
EXPECT_EQ(mask.IsSet(bit), mask2.IsSet(bit));
EXPECT_EQ(mask.IsSet(bit), mask3.IsSet(bit));
}
EXPECT_TRUE(std::is_trivially_copyable<BitMask<int>>::value);
}
TEST(QuicBitMaskTest, Any) {
BitMask<int> mask;
EXPECT_FALSE(mask.Any());
mask.Set(3);
EXPECT_TRUE(mask.Any());
mask.Set(2);
EXPECT_TRUE(mask.Any());
mask.ClearAll();
EXPECT_FALSE(mask.Any());
}
TEST(QuicBitMaskTest, And) {
using Mask = BitMask<int>;
EXPECT_EQ(Mask({1, 3, 6}) & Mask({3, 5, 6}), Mask({3, 6}));
EXPECT_EQ(Mask({1, 2, 4}) & Mask({3, 5}), Mask({}));
EXPECT_EQ(Mask({1, 2, 3, 4, 5}) & Mask({}), Mask({}));
}
}
}
} |
261 | cpp | google/quiche | quic_stream | quiche/quic/core/quic_stream.cc | quiche/quic/core/quic_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_H_
#include <cstddef>
#include <cstdint>
#include <list>
#include <optional>
#include <string>
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/quic/core/frames/quic_connection_close_frame.h"
#include "quiche/quic/core/frames/quic_rst_stream_frame.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_flow_controller.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_stream_send_buffer.h"
#include "quiche/quic/core/quic_stream_sequencer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/session_notifier_interface.h"
#include "quiche/quic/core/stream_delegate_interface.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/platform/api/quiche_reference_counted.h"
#include "quiche/spdy/core/spdy_protocol.h"
namespace quic {
namespace test {
class QuicStreamPeer;
}
class QuicSession;
class QuicStream;
class QUICHE_EXPORT PendingStream
: public QuicStreamSequencer::StreamInterface {
public:
PendingStream(QuicStreamId id, QuicSession* session);
PendingStream(const PendingStream&) = delete;
PendingStream(PendingStream&&) = default;
~PendingStream() override = default;
void OnDataAvailable() override;
void OnFinRead() override;
void AddBytesConsumed(QuicByteCount bytes) override;
void ResetWithError(QuicResetStreamError error) override;
void OnUnrecoverableError(QuicErrorCode error,
const std::string& details) override;
void OnUnrecoverableError(QuicErrorCode error,
QuicIetfTransportErrorCodes ietf_error,
const std::string& details) override;
QuicStreamId id() const override;
ParsedQuicVersion version() const override;
void OnStreamFrame(const QuicStreamFrame& frame);
bool is_bidirectional() const { return is_bidirectional_; }
void OnRstStreamFrame(const QuicRstStreamFrame& frame);
void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame);
void OnStopSending(QuicResetStreamError stop_sending_error_code);
const std::optional<QuicResetStreamError>& GetStopSendingErrorCode() const {
return stop_sending_error_code_;
}
uint64_t stream_bytes_read() { return stream_bytes_read_; }
const QuicStreamSequencer* sequencer() const { return &sequencer_; }
void MarkConsumed(QuicByteCount num_bytes);
void StopReading();
QuicTime creation_time() const { return creation_time_; }
private:
friend class QuicStream;
bool MaybeIncreaseHighestReceivedOffset(QuicStreamOffset new_offset);
QuicStreamId id_;
ParsedQuicVersion version_;
StreamDelegateInterface* stream_delegate_;
uint64_t stream_bytes_read_;
bool fin_received_;
bool is_bidirectional_;
QuicFlowController* connection_flow_controller_;
QuicFlowController flow_controller_;
QuicStreamSequencer sequencer_;
std::optional<QuicResetStreamError> stop_sending_error_code_;
const QuicTime creation_time_;
};
class QUICHE_EXPORT QuicStream : public QuicStreamSequencer::StreamInterface {
public:
QuicStream(QuicStreamId id, QuicSession* session, bool is_static,
StreamType type);
QuicStream(PendingStream* pending, QuicSession* session, bool is_static);
QuicStream(const QuicStream&) = delete;
QuicStream& operator=(const QuicStream&) = delete;
virtual ~QuicStream();
QuicStreamId id() const override { return id_; }
ParsedQuicVersion version() const override;
void OnFinRead() override;
void ResetWithError(QuicResetStreamError error) override;
void Reset(QuicRstStreamErrorCode error);
void ResetWriteSide(QuicResetStreamError error);
void SendStopSending(QuicResetStreamError error);
void OnUnrecoverableError(QuicErrorCode error,
const std::string& details) override;
void OnUnrecoverableError(QuicErrorCode error,
QuicIetfTransportErrorCodes ietf_error,
const std::string& details) override;
virtual void OnStreamFrame(const QuicStreamFrame& frame);
virtual void OnCanWrite();
virtual void OnStreamReset(const QuicRstStreamFrame& frame);
virtual void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source);
const QuicStreamPriority& priority() const;
virtual void MaybeSendPriorityUpdateFrame() {}
void SetPriority(const QuicStreamPriority& priority);
bool IsWaitingForAcks() const;
QuicRstStreamErrorCode stream_error() const {
return stream_error_.internal_code();
}
uint64_t ietf_application_error() const {
return stream_error_.ietf_application_code();
}
QuicErrorCode connection_error() const { return connection_error_; }
bool reading_stopped() const {
return sequencer_.ignore_read_data() || read_side_closed_;
}
bool write_side_closed() const { return write_side_closed_; }
bool read_side_closed() const { return read_side_closed_; }
bool IsZombie() const {
return read_side_closed_ && write_side_closed_ && IsWaitingForAcks();
}
bool rst_received() const { return rst_received_; }
bool rst_sent() const { return rst_sent_; }
bool fin_received() const { return fin_received_; }
bool fin_sent() const { return fin_sent_; }
bool fin_outstanding() const { return fin_outstanding_; }
bool fin_lost() const { return fin_lost_; }
uint64_t BufferedDataBytes() const;
uint64_t stream_bytes_read() const { return stream_bytes_read_; }
uint64_t stream_bytes_written() const;
size_t busy_counter() const { return busy_counter_; }
void set_busy_counter(size_t busy_counter) { busy_counter_ = busy_counter; }
virtual void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame);
int num_frames_received() const;
int num_duplicate_frames_received() const;
bool IsFlowControlBlocked() const;
QuicStreamOffset highest_received_byte_offset() const;
void UpdateReceiveWindowSize(QuicStreamOffset size);
QuicStreamOffset NumBytesConsumed() const {
return sequencer()->NumBytesConsumed();
}
bool MaybeIncreaseHighestReceivedOffset(QuicStreamOffset new_offset);
bool MaybeConfigSendWindowOffset(QuicStreamOffset new_offset,
bool was_zero_rtt_rejected);
bool HasReceivedFinalOffset() const { return fin_received_ || rst_received_; }
bool HasBufferedData() const;
QuicTransportVersion transport_version() const;
HandshakeProtocol handshake_protocol() const;
virtual void StopReading();
void WriteOrBufferData(
absl::string_view data, bool fin,
quiche::QuicheReferenceCountedPointer<QuicAckListenerInterface>
ack_listener);
void WriteOrBufferDataAtLevel(
absl::string_view data, bool fin, EncryptionLevel level,
quiche::QuicheReferenceCountedPointer<QuicAckListenerInterface>
ack_listener);
void AddRandomPaddingAfterFin();
bool WriteStreamData(QuicStreamOffset offset, QuicByteCount data_length,
QuicDataWriter* writer);
virtual bool OnStreamFrameAcked(QuicStreamOffset offset,
QuicByteCount data_length, bool fin_acked,
QuicTime::Delta ack_delay_time,
QuicTime receive_timestamp,
QuicByteCount* newly_acked_length);
virtual void OnStreamFrameRetransmitted(QuicStreamOffset offset,
QuicByteCount data_length,
bool fin_retransmitted);
virtual void OnStreamFrameLost(QuicStreamOffset offset,
QuicByteCount data_length, bool fin_lost);
virtual bool RetransmitStreamData(QuicStreamOffset offset,
QuicByteCount data_length, bool fin,
TransmissionType type);
bool MaybeSetTtl(QuicTime::Delta ttl);
QuicConsumedData WriteMemSlices(absl::Span<quiche::QuicheMemSlice> span,
bool fin, bool buffer_uncondtionally = false);
QuicConsumedData WriteMemSlice(quiche::QuicheMemSlice span, bool fin);
virtual bool HasPendingRetransmission() const;
bool IsStreamFrameOutstanding(QuicStreamOffset offset,
QuicByteCount data_length, bool fin) const;
StreamType type() const { return type_; }
virtual bool OnStopSending(QuicResetStreamError error);
bool is_static() const { return is_static_; }
bool was_draining() const { return was_draining_; }
QuicTime creation_time() const { return creation_time_; }
bool fin_buffered() const { return fin_buffered_; }
bool CanWriteNewData() const;
void OnStreamCreatedFromPendingStream();
void DisableConnectionFlowControlForThisStream() {
stream_contributes_to_connection_flow_control_ = false;
}
QuicByteCount CalculateSendWindowSize() const;
const QuicTime::Delta pending_duration() const { return pending_duration_; }
protected:
virtual void OnDataBuffered(
QuicStreamOffset , QuicByteCount ,
const quiche::QuicheReferenceCountedPointer<QuicAckListenerInterface>&
) {}
virtual void OnClose();
bool CanWriteNewDataAfterData(QuicByteCount length) const;
virtual void OnCanWriteNewData() {}
virtual void OnStreamDataConsumed(QuicByteCount bytes_consumed);
void AddBytesConsumed(QuicByteCount bytes) override;
virtual void WritePendingRetransmission();
virtual void OnDeadlinePassed();
void SetFinSent();
void MaybeSendStopSending(QuicResetStreamError error);
void MaybeSendRstStream(QuicResetStreamError error);
void MaybeSendRstStream(QuicRstStreamErrorCode error) {
MaybeSendRstStream(QuicResetStreamError::FromInternal(error));
}
void MaybeSendStopSending(QuicRstStreamErrorCode error) {
MaybeSendStopSending(QuicResetStreamError::FromInternal(error));
}
virtual void CloseReadSide();
virtual void CloseWriteSide();
void set_rst_received(bool rst_received) { rst_received_ = rst_received; }
void set_stream_error(QuicResetStreamError error) { stream_error_ = error; }
StreamDelegateInterface* stream_delegate() { return stream_delegate_; }
const QuicSession* session() const { return session_; }
QuicSession* session() { return session_; }
const QuicStreamSequencer* sequencer() const { return &sequencer_; }
QuicStreamSequencer* sequencer() { return &sequencer_; }
const QuicIntervalSet<QuicStreamOffset>& bytes_acked() const;
const QuicStreamSendBuffer& send_buffer() const { return send_buffer_; }
QuicStreamSendBuffer& send_buffer() { return send_buffer_; }
virtual void OnWriteSideInDataRecvdState() {}
std::optional<QuicByteCount> GetSendWindow() const;
std::optional<QuicByteCount> GetReceiveWindow() const;
private:
friend class test::QuicStreamPeer;
friend class QuicStreamUtils;
QuicStream(QuicStreamId id, QuicSession* session,
QuicStreamSequencer sequencer, bool is_static, StreamType type,
uint64_t stream_bytes_read, bool fin_received,
std::optional<QuicFlowController> flow_controller,
QuicFlowController* connection_flow_controller,
QuicTime::Delta pending_duration);
void MaybeSendBlocked();
void WriteBufferedData(EncryptionLevel level);
void AddBytesSent(QuicByteCount bytes);
bool HasDeadlinePassed() const;
QuicStreamSequencer sequencer_;
QuicStreamId id_;
QuicSession* session_;
StreamDelegateInterface* stream_delegate_;
QuicStreamPriority priority_;
uint64_t stream_bytes_read_;
QuicResetStreamError stream_error_;
QuicErrorCode connection_error_;
bool read_side_closed_;
bool write_side_closed_;
bool write_side_data_recvd_state_notified_;
bool fin_buffered_;
bool fin_sent_;
bool fin_outstanding_;
bool fin_lost_;
bool fin_received_;
bool rst_sent_;
bool rst_received_;
bool stop_sending_sent_;
std::optional<QuicFlowController> flow_controller_;
QuicFlowController* connection_flow_controller_;
bool stream_contributes_to_connection_flow_control_;
size_t busy_counter_;
bool add_random_padding_after_fin_;
QuicStreamSendBuffer send_buffer_;
const QuicByteCount buffered_data_threshold_;
const bool is_static_;
QuicTime deadline_;
bool was_draining_;
const StreamType type_;
const QuicTime creation_time_;
const QuicTime::Delta pending_duration_;
Perspective perspective_;
};
}
#endif
#include "quiche/quic/core/quic_stream.h"
#include <algorithm>
#include <limits>
#include <optional>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_flow_controller.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
using spdy::SpdyPriority;
namespace quic {
#define ENDPOINT \
(perspective_ == Perspective::IS_SERVER ? "Server: " : "Client: ")
namespace {
QuicByteCount DefaultFlowControlWindow(ParsedQuicVersion version) {
if (!version.AllowsLowFlowControlLimits()) {
return kDefaultFlowControlSendWindow;
}
return 0;
}
QuicByteCount GetInitialStreamFlowControlWindowToSend(QuicSession* session,
QuicStreamId stream_id) {
ParsedQuicVersion version = session->connection()->version();
if (version.handshake_protocol != PROTOCOL_TLS1_3) {
return session->config()->GetInitialStreamFlowControlWindowToSend();
}
if (VersionHasIetfQuicFrames(version.transport_version) &&
!QuicUtils::IsBidirectionalStreamId(stream_id, version)) {
return session->config()
->GetInitialMaxStreamDataBytesUnidirectionalToSend();
}
if (QuicUtils::IsOutgoingStreamId(version, stream_id,
session->perspective())) {
return session->config()
->GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend();
}
return session->config()
->GetInitialMaxStreamDataBytesIncomingBidirectionalToSend();
}
QuicByteCount GetReceivedFlowControlWindow(QuicSession* session,
QuicStreamId stream_id) {
ParsedQuicVersion version = session->connection()->version();
if (version.handshake_protocol != PROTOCOL_TLS1_3) {
if (session->config()->HasReceivedInitialStreamFlowControlWindowBytes()) {
return session->config()->ReceivedInitialStreamFlowControlWindowBytes();
}
return DefaultFlowControlWindow(version);
}
if (VersionHasIetfQuicFrames(version.transport_version) &&
!QuicUtils::IsBidirectionalStreamId(stream_id, version)) {
if (session->config()
->HasReceivedInitialMaxStreamDataBytesUnidirectional()) {
return session->config()
->ReceivedInitialMaxStreamDataBytesUnidirectional();
}
return DefaultFlowControlWindow(version);
}
if (QuicUtils::IsOutgoingStreamId(version, stream_id,
session->perspective())) {
if (session->config()
->HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional()) {
return session->config()
->ReceivedInitialMaxStreamDataBytesOutgoingBidirectional();
}
return DefaultFlowControlWindow(version);
}
if (session->config()
->HasReceivedInitialMaxStreamDataBytesIncomingBidirectional()) {
return session->config()
->ReceivedInitialMaxStreamDataBytesIncomingBidirectional();
}
return DefaultFlowControlWindow(version);
}
}
PendingStream::PendingStream(QuicStreamId id, QuicSession* session)
: id_(id),
version_(session->version()),
stream_delegate_(session),
stream_bytes_read_(0),
fin_received_(false),
is_bidirectional_(QuicUtils::GetStreamType(id, session->perspective(),
true,
session->version()) ==
BIDIRECTIONAL),
connection_flow_controller_(session->flow_controller()),
flow_controller_(session, id,
false,
GetReceivedFlowControlWindow(session, id),
GetInitialStreamFlowControlWindowToSend(session, id),
kStreamReceiveWindowLimit,
session->flow_controller()->auto_tune_receive_window(),
session->flow_controller()),
sequencer_(this),
creation_time_(session->GetClock()->ApproximateNow()) {
if (is_bidirectional_) {
QUIC_CODE_COUNT_N(quic_pending_stream, 3, 3);
}
}
void PendingStream::OnDataAvailable() {
}
void PendingStream::OnFinRead() { QUICHE_DCHECK(sequencer_.IsClosed()); }
void PendingStream::AddBytesConsumed(QuicByteCount bytes) {
flow_controller_.AddBytesConsumed(bytes);
connection_flow_controller_->AddBytesConsumed(bytes);
}
void PendingStream::ResetWithError(QuicResetStreamError ) {
QUICHE_NOTREACHED();
}
void PendingStream::OnUnrecoverableError(QuicErrorCode error,
const std::string& details) {
stream_delegate_->OnStreamError(error, details);
}
void PendingStream::OnUnrecoverableError(QuicErrorCode error,
QuicIetfTransportErrorCodes ietf_error,
const std::string& details) {
stream_delegate_->OnStreamError(error, ietf_error, details);
}
QuicStreamId PendingStream::id() const { return id_; }
ParsedQuicVersion PendingStream::version() const { return version_; }
void PendingStream::OnStreamFrame(const QuicStreamFrame& frame) {
QUICHE_DCHECK_EQ(frame.stream_id, id_);
bool is_stream_too_long =
(frame.offset > kMaxStreamLength) ||
(kMaxStreamLength - frame.offset < frame.data_length);
if (is_stream_too_long) {
QUIC_PEER_BUG(quic_peer_bug_12570_1)
<< "Receive stream frame reaches max stream length. frame offset "
<< frame.offset << " length " << frame.data_length;
OnUnrecoverableError(QUIC_STREAM_LENGTH_OVERFLOW,
"Peer sends more data than allowed on this stream.");
return;
}
if (frame.offset + frame.data_length > sequencer_.close_offset()) {
OnUnrecoverableError(
QUIC_STREAM_DATA_BEYOND_CLOSE_OFFSET,
absl::StrCat(
"Stream ", id_,
" received data with offset: ", frame.offset + frame.data_length,
", which is beyond close offset: ", sequencer()->close_offset()));
return;
}
if (frame.fin) {
fin_received_ = true;
}
QuicByteCount frame_payload_size = frame.data_length;
stream_bytes_read_ += frame_payload_size;
if (frame_payload_size | #include "quiche/quic/core/quic_stream.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/memory/memory.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/frames/quic_connection_close_frame.h"
#include "quiche/quic/core/frames/quic_rst_stream_frame.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/quic_write_blocked_list.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_flow_controller_peer.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_stream_sequencer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/quiche_mem_slice_storage.h"
using testing::_;
using testing::AnyNumber;
using testing::AtLeast;
using testing::InSequence;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::Return;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
const char kData1[] = "FooAndBar";
const char kData2[] = "EepAndBaz";
const QuicByteCount kDataLen = 9;
const uint8_t kPacket0ByteConnectionId = 0;
const uint8_t kPacket8ByteConnectionId = 8;
class TestStream : public QuicStream {
public:
TestStream(QuicStreamId id, QuicSession* session, StreamType type)
: QuicStream(id, session, false, type) {
sequencer()->set_level_triggered(true);
}
TestStream(PendingStream* pending, QuicSession* session, bool is_static)
: QuicStream(pending, session, is_static) {}
MOCK_METHOD(void, OnDataAvailable, (), (override));
MOCK_METHOD(void, OnCanWriteNewData, (), (override));
MOCK_METHOD(void, OnWriteSideInDataRecvdState, (), (override));
using QuicStream::CanWriteNewData;
using QuicStream::CanWriteNewDataAfterData;
using QuicStream::CloseWriteSide;
using QuicStream::fin_buffered;
using QuicStream::MaybeSendStopSending;
using QuicStream::OnClose;
using QuicStream::WriteMemSlices;
using QuicStream::WriteOrBufferData;
private:
std::string data_;
};
class QuicStreamTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
QuicStreamTest()
: zero_(QuicTime::Delta::Zero()),
supported_versions_(AllSupportedVersions()) {}
void Initialize(Perspective perspective = Perspective::IS_SERVER) {
ParsedQuicVersionVector version_vector;
version_vector.push_back(GetParam());
connection_ = new StrictMock<MockQuicConnection>(
&helper_, &alarm_factory_, perspective, version_vector);
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
session_ = std::make_unique<StrictMock<MockQuicSession>>(connection_);
session_->Initialize();
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(
session_->config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesUnidirectional(
session_->config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional(
session_->config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesOutgoingBidirectional(
session_->config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(session_->config(), 10);
session_->OnConfigNegotiated();
stream_ = new StrictMock<TestStream>(kTestStreamId, session_.get(),
BIDIRECTIONAL);
EXPECT_NE(nullptr, stream_);
EXPECT_CALL(*session_, ShouldKeepConnectionAlive())
.WillRepeatedly(Return(true));
session_->ActivateStream(absl::WrapUnique(stream_));
EXPECT_CALL(*session_, MaybeSendStopSendingFrame(kTestStreamId, _))
.Times(AnyNumber());
EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _))
.Times(AnyNumber());
write_blocked_list_ =
QuicSessionPeer::GetWriteBlockedStreams(session_.get());
}
bool fin_sent() { return stream_->fin_sent(); }
bool rst_sent() { return stream_->rst_sent(); }
bool HasWriteBlockedStreams() {
return write_blocked_list_->HasWriteBlockedSpecialStream() ||
write_blocked_list_->HasWriteBlockedDataStreams();
}
QuicConsumedData CloseStreamOnWriteError(
QuicStreamId id, QuicByteCount ,
QuicStreamOffset , StreamSendingState ,
TransmissionType , std::optional<EncryptionLevel> ) {
session_->ResetStream(id, QUIC_STREAM_CANCELLED);
return QuicConsumedData(1, false);
}
bool ClearResetStreamFrame(const QuicFrame& frame) {
EXPECT_EQ(RST_STREAM_FRAME, frame.type);
DeleteFrame(&const_cast<QuicFrame&>(frame));
return true;
}
bool ClearStopSendingFrame(const QuicFrame& frame) {
EXPECT_EQ(STOP_SENDING_FRAME, frame.type);
DeleteFrame(&const_cast<QuicFrame&>(frame));
return true;
}
protected:
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
MockQuicConnection* connection_;
std::unique_ptr<MockQuicSession> session_;
StrictMock<TestStream>* stream_;
QuicWriteBlockedListInterface* write_blocked_list_;
QuicTime::Delta zero_;
ParsedQuicVersionVector supported_versions_;
QuicStreamId kTestStreamId = GetNthClientInitiatedBidirectionalStreamId(
GetParam().transport_version, 1);
const QuicStreamId kTestPendingStreamId =
GetNthClientInitiatedUnidirectionalStreamId(GetParam().transport_version,
1);
};
INSTANTIATE_TEST_SUITE_P(QuicStreamTests, QuicStreamTest,
::testing::ValuesIn(AllSupportedVersions()),
::testing::PrintToStringParamName());
using PendingStreamTest = QuicStreamTest;
INSTANTIATE_TEST_SUITE_P(PendingStreamTests, PendingStreamTest,
::testing::ValuesIn(CurrentSupportedHttp3Versions()),
::testing::PrintToStringParamName());
TEST_P(PendingStreamTest, PendingStreamStaticness) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
TestStream stream(&pending, session_.get(), false);
EXPECT_FALSE(stream.is_static());
PendingStream pending2(kTestPendingStreamId + 4, session_.get());
TestStream stream2(&pending2, session_.get(), true);
EXPECT_TRUE(stream2.is_static());
}
TEST_P(PendingStreamTest, PendingStreamType) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
TestStream stream(&pending, session_.get(), false);
EXPECT_EQ(stream.type(), READ_UNIDIRECTIONAL);
}
TEST_P(PendingStreamTest, PendingStreamTypeOnClient) {
Initialize(Perspective::IS_CLIENT);
QuicStreamId server_initiated_pending_stream_id =
GetNthServerInitiatedUnidirectionalStreamId(session_->transport_version(),
1);
PendingStream pending(server_initiated_pending_stream_id, session_.get());
TestStream stream(&pending, session_.get(), false);
EXPECT_EQ(stream.type(), READ_UNIDIRECTIONAL);
}
TEST_P(PendingStreamTest, PendingStreamTooMuchData) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
QuicStreamFrame frame(kTestPendingStreamId, false,
kInitialSessionFlowControlWindowForTest + 1, ".");
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
pending.OnStreamFrame(frame);
}
TEST_P(PendingStreamTest, PendingStreamTooMuchDataInRstStream) {
Initialize();
PendingStream pending1(kTestPendingStreamId, session_.get());
QuicRstStreamFrame frame1(kInvalidControlFrameId, kTestPendingStreamId,
QUIC_STREAM_CANCELLED,
kInitialSessionFlowControlWindowForTest + 1);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
pending1.OnRstStreamFrame(frame1);
QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId(
session_->transport_version(), Perspective::IS_CLIENT);
PendingStream pending2(bidirection_stream_id, session_.get());
QuicRstStreamFrame frame2(kInvalidControlFrameId, bidirection_stream_id,
QUIC_STREAM_CANCELLED,
kInitialSessionFlowControlWindowForTest + 1);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
pending2.OnRstStreamFrame(frame2);
}
TEST_P(PendingStreamTest, PendingStreamRstStream) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
QuicStreamOffset final_byte_offset = 7;
QuicRstStreamFrame frame(kInvalidControlFrameId, kTestPendingStreamId,
QUIC_STREAM_CANCELLED, final_byte_offset);
EXPECT_CALL(*connection_, CloseConnection(_, _, _)).Times(0);
pending.OnRstStreamFrame(frame);
}
TEST_P(PendingStreamTest, PendingStreamWindowUpdate) {
Initialize();
QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId(
session_->transport_version(), Perspective::IS_CLIENT);
PendingStream pending(bidirection_stream_id, session_.get());
QuicWindowUpdateFrame frame(kInvalidControlFrameId, bidirection_stream_id,
kDefaultFlowControlSendWindow * 2);
pending.OnWindowUpdateFrame(frame);
TestStream stream(&pending, session_.get(), false);
EXPECT_EQ(QuicStreamPeer::SendWindowSize(&stream),
kDefaultFlowControlSendWindow * 2);
}
TEST_P(PendingStreamTest, PendingStreamStopSending) {
Initialize();
QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId(
session_->transport_version(), Perspective::IS_CLIENT);
PendingStream pending(bidirection_stream_id, session_.get());
QuicResetStreamError error =
QuicResetStreamError::FromInternal(QUIC_STREAM_INTERNAL_ERROR);
pending.OnStopSending(error);
EXPECT_TRUE(pending.GetStopSendingErrorCode());
auto actual_error = *pending.GetStopSendingErrorCode();
EXPECT_EQ(actual_error, error);
}
TEST_P(PendingStreamTest, FromPendingStream) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
QuicStreamFrame frame(kTestPendingStreamId, false, 2, ".");
pending.OnStreamFrame(frame);
pending.OnStreamFrame(frame);
QuicStreamFrame frame2(kTestPendingStreamId, true, 3, ".");
pending.OnStreamFrame(frame2);
TestStream stream(&pending, session_.get(), false);
EXPECT_EQ(3, stream.num_frames_received());
EXPECT_EQ(3u, stream.stream_bytes_read());
EXPECT_EQ(1, stream.num_duplicate_frames_received());
EXPECT_EQ(true, stream.fin_received());
EXPECT_EQ(frame2.offset + 1, stream.highest_received_byte_offset());
EXPECT_EQ(frame2.offset + 1,
session_->flow_controller()->highest_received_byte_offset());
}
TEST_P(PendingStreamTest, FromPendingStreamThenData) {
Initialize();
PendingStream pending(kTestPendingStreamId, session_.get());
QuicStreamFrame frame(kTestPendingStreamId, false, 2, ".");
pending.OnStreamFrame(frame);
auto stream = new TestStream(&pending, session_.get(), false);
session_->ActivateStream(absl::WrapUnique(stream));
QuicStreamFrame frame2(kTestPendingStreamId, true, 3, ".");
stream->OnStreamFrame(frame2);
EXPECT_EQ(2, stream->num_frames_received());
EXPECT_EQ(2u, stream->stream_bytes_read());
EXPECT_EQ(true, stream->fin_received());
EXPECT_EQ(frame2.offset + 1, stream->highest_received_byte_offset());
EXPECT_EQ(frame2.offset + 1,
session_->flow_controller()->highest_received_byte_offset());
}
TEST_P(QuicStreamTest, WriteAllData) {
Initialize();
QuicByteCount length =
1 + QuicPacketCreator::StreamFramePacketOverhead(
connection_->transport_version(), kPacket8ByteConnectionId,
kPacket0ByteConnectionId, !kIncludeVersion,
!kIncludeDiversificationNonce, PACKET_4BYTE_PACKET_NUMBER,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0, 0u);
connection_->SetMaxPacketLength(length);
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData));
stream_->WriteOrBufferData(kData1, false, nullptr);
EXPECT_FALSE(HasWriteBlockedStreams());
}
TEST_P(QuicStreamTest, NoBlockingIfNoDataOrFin) {
Initialize();
EXPECT_QUIC_BUG(
stream_->WriteOrBufferData(absl::string_view(), false, nullptr), "");
EXPECT_FALSE(HasWriteBlockedStreams());
}
TEST_P(QuicStreamTest, BlockIfOnlySomeDataConsumed) {
Initialize();
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), 1u, 0u, NO_FIN,
NOT_RETRANSMISSION, std::nullopt);
}));
stream_->WriteOrBufferData(absl::string_view(kData1, 2), false, nullptr);
EXPECT_TRUE(session_->HasUnackedStreamData());
ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams());
EXPECT_EQ(1u, stream_->BufferedDataBytes());
}
TEST_P(QuicStreamTest, BlockIfFinNotConsumedWithData) {
Initialize();
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), 2u, 0u, NO_FIN,
NOT_RETRANSMISSION, std::nullopt);
}));
stream_->WriteOrBufferData(absl::string_view(kData1, 2), true, nullptr);
EXPECT_TRUE(session_->HasUnackedStreamData());
ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams());
}
TEST_P(QuicStreamTest, BlockIfSoloFinNotConsumed) {
Initialize();
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(Return(QuicConsumedData(0, false)));
stream_->WriteOrBufferData(absl::string_view(), true, nullptr);
ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams());
}
TEST_P(QuicStreamTest, CloseOnPartialWrite) {
Initialize();
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(Invoke(this, &QuicStreamTest::CloseStreamOnWriteError));
stream_->WriteOrBufferData(absl::string_view(kData1, 2), false, nullptr);
ASSERT_EQ(0u, write_blocked_list_->NumBlockedStreams());
}
TEST_P(QuicStreamTest, WriteOrBufferData) {
Initialize();
EXPECT_FALSE(HasWriteBlockedStreams());
QuicByteCount length =
1 + QuicPacketCreator::StreamFramePacketOverhead(
connection_->transport_version(), kPacket8ByteConnectionId,
kPacket0ByteConnectionId, !kIncludeVersion,
!kIncludeDiversificationNonce, PACKET_4BYTE_PACKET_NUMBER,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0,
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0, 0u);
connection_->SetMaxPacketLength(length);
EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), kDataLen - 1, 0u, NO_FIN,
NOT_RETRANSMISSION, std::nullopt);
}));
stream_->WriteOrBufferData(kData1, false, nullptr);
EXPECT_TRUE(session_->HasUnackedStreamData());
EXPECT_EQ(1u, stream_->BufferedDataBytes());
EXPECT_TRUE(HasWriteBlockedStreams());
stream_->WriteOrBufferData(kData2, false, nullptr);
EXPECT_EQ(10u, stream_->BufferedDataBytes());
InSequence s;
EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), kDataLen - 1, kDataLen - 1,
NO_FIN, NOT_RETRANSMISSION, std::nullopt);
}));
EXPECT_CALL(*stream_, OnCanWriteNewData());
stream_->OnCanWrite();
EXPECT_TRUE(session_->HasUnackedStreamData());
EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), 2u, 2 * kDataLen - 2,
NO_FIN, NOT_RETRANSMISSION, std::nullopt);
}));
EXPECT_CALL(*stream_, OnCanWriteNewData());
stream_->OnCanWrite();
EXPECT_TRUE(session_->HasUnackedStreamData());
}
TEST_P(QuicStreamTest, WriteOrBufferDataReachStreamLimit) {
Initialize();
std::string data("aaaaa");
QuicStreamPeer::SetStreamBytesWritten(kMaxStreamLength - data.length(),
stream_);
EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _))
.WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData));
stream_->WriteOrBufferData(data, false, nullptr);
EXPECT_TRUE(session_->HasUnackedStreamData());
EXPECT_QUIC_BUG(
{
EXPECT_CALL(*connection_,
CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _));
stream_->WriteOrBufferData("a", false, nullptr);
},
"Write too many data via stream");
}
TEST_P(QuicStreamTest, ConnectionCloseAfterStreamClose) {
Initialize();
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
stream_->OnStreamReset(rst_frame);
if (VersionHasIetfQuicFrames(session_->transport_version())) {
QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED);
session_->OnStopSendingFrame(stop_sending);
}
EXPECT_THAT(stream_->stream_error(), IsStreamError(QUIC_STREAM_CANCELLED));
EXPECT_THAT(stream_->connection_error(), IsQuicNoError());
QuicConnectionCloseFrame frame;
frame.quic_error_code = QUIC_INTERNAL_ERROR;
stream_->OnConnectionClosed(frame, ConnectionCloseSource::FROM_SELF);
EXPECT_THAT(stream_->stream_error(), IsStreamError(QUIC_STREAM_CANCELLED));
EXPECT_THAT(stream_->connection_error(), IsQuicNoError());
}
TEST_P(QuicStreamTest, RstAlwaysSentIfNoFinSent) {
Initialize();
EXPECT_FALSE(fin_sent());
EXPECT_FALSE(rst_sent());
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), 1u, 0u, NO_FIN,
NOT_RETRANSMISSION, std::nullopt);
}));
stream_->WriteOrBufferData(absl::string_view(kData1, 1), false, nullptr);
EXPECT_TRUE(session_->HasUnackedStreamData());
EXPECT_FALSE(fin_sent());
EXPECT_FALSE(rst_sent());
EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _));
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
stream_->OnStreamReset(rst_frame);
if (VersionHasIetfQuicFrames(session_->transport_version())) {
QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED);
session_->OnStopSendingFrame(stop_sending);
}
EXPECT_FALSE(session_->HasUnackedStreamData());
EXPECT_FALSE(fin_sent());
EXPECT_TRUE(rst_sent());
}
TEST_P(QuicStreamTest, RstNotSentIfFinSent) {
Initialize();
EXPECT_FALSE(fin_sent());
EXPECT_FALSE(rst_sent());
EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _))
.WillOnce(InvokeWithoutArgs([this]() {
return session_->ConsumeData(stream_->id(), 1u, 0u, FIN,
NOT_RETRANSMISSION, std::nullopt);
}));
stream_->WriteOrBufferData(absl::string_view(kData1, 1), true, nullptr);
EXPECT_TRUE(fin_sent());
EXPECT_FALSE(rst_sent());
QuicStreamPeer::CloseReadSide(stream_);
stream_->CloseWriteSide();
EXPECT_TRUE(fin_sent());
EXPECT_FALSE(rst_sent());
}
TEST_P(QuicStreamTest, OnlySendOneRst) {
Initialize();
EXPECT_FALSE(fin_sent());
EXPECT_FALSE(rst_sent());
EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _)).Times(1);
stream_->Reset(QUIC_STREAM_CANCELLED);
EXPECT_FALSE(fin_sent());
EXPECT_TRUE(rst_sent());
QuicStreamPeer::CloseReadSide(stream_);
stream_->CloseWriteSide();
EXPECT_FALSE(fin_sent());
EXPECT_TRUE(rst_sent());
}
TEST_P(QuicStreamTest, StreamFlowControlMultipleWindowUpdates) {
Initialize();
EXPECT_EQ(kMinimumFlowControlSendWindow,
QuicStreamPeer::SendWindowOffset(stream_));
QuicWindowUpdateFrame window_update_1(kInvalidControlFrameId, stream_->id(),
kMinimumFlowControlSendWindow + 5);
stream_->OnWindowUpdateFrame(window_update_1);
EXPECT_EQ(window_update_1.max_data,
QuicStreamPeer::SendWindowOffset(stream_));
QuicWindowUpdateFrame window_update_2(kInvalidControlFrameId, stream_->id(),
1);
QuicWindowUpdateFrame window_update_3(kInvalidControlFrameId, stream_->id(),
kMinimumFlowControlSendWindow + 10);
QuicWindowUpdateFrame window_update_4(kInvalidControlFrameId, stream_->id(),
5678);
stream_->OnWindowUpdateFrame(window_update_2);
stream_->OnWindowUpdateFrame(window_update_3);
stream_->OnWindowUpdateFrame(window_update_4);
EXPECT_EQ(window_update_3.max_data,
QuicStreamPeer::SendWindowOffset(stream_));
}
TEST_P(QuicStreamTest, FrameStats) {
Initialize();
EXPECT_EQ(0, stream_->num_frames_received());
EXPECT_EQ(0, stream_->num_duplicate_frames_received());
QuicStreamFrame frame(stream_->id(), false, 0, ".");
EXPECT_CALL(*stream_, OnDataAvailable()).Times(2);
stream_->OnStreamFrame(frame);
EXPECT_EQ(1, stream_->num_frames_received());
EXPECT_EQ(0, stream_->num_duplicate_frames_received());
stream_->OnStreamFrame(frame);
EXPECT_EQ(2, stream_->num_frames_received());
EXPECT_EQ(1, stream_->num_duplicate_frames_received());
QuicStreamFrame frame2(stream_->id(), false, 1, "abc");
stream_->OnStreamFrame(frame2);
}
TEST_P(QuicStreamTest, StreamSequencerNeverSeesPacketsViolatingFlowControl) {
Initialize();
QuicStreamFrame frame(stream_->id(), false,
kInitialSessionFlowControlWindowForTest + 1, ".");
EXPECT_GT(frame.offset, QuicStreamPeer::ReceiveWindowOffset(stream_));
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
stream_->OnStreamFrame(frame);
}
TEST_P(QuicStreamTest, StopReadingSendsFlowControl) {
Initialize();
stream_->StopReading();
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _))
.Times(0);
EXPECT_CALL(*session_, WriteControlFrame(_, _))
.Times(AtLeast(1))
.WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType));
std::string data(1000, 'x');
for (QuicStreamOffset offset = 0;
offset < 2 * kInitialStreamFlowControlWindowForTest;
offset += data.length()) {
QuicStreamFrame frame(stream_->id(), false, offset, data);
stream_->OnStreamFrame(frame);
}
EXPECT_LT(kInitialStreamFlowControlWindowForTest,
QuicStreamPeer::ReceiveWindowOffset(stream_));
}
TEST_P(QuicStreamTest, FinalByteOffsetFromFin) {
Initialize();
EXPECT_FALSE(stream_->HasReceivedFinalOffset());
QuicStreamFrame stream_frame_no_fin(stream_->id(), false, 1234, ".");
stream_->OnStreamFrame(stream_frame_no_fin);
EXPECT_FALSE(stream_->HasReceivedFinalOffset());
QuicStreamFrame stream_frame_with_fin(stream_->id(), true, 1234, ".");
stream_->OnStreamFrame(stream_frame_with_fin);
EXPECT_TRUE(stream_->HasReceivedFinalOffset());
}
TEST_P(QuicStreamTest, FinalByteOffsetFromRst) {
Initialize();
EXPECT_FALSE(stream_->HasReceivedFinalOffset());
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
stream_->OnStreamReset(rst_frame);
EXPECT_TRUE(stream_->HasReceivedFinalOffset());
}
TEST_P(QuicStreamTest, InvalidFinalByteOffsetFromRst) {
Initialize();
EXPECT_FALSE(stream_->HasReceivedFinalOffset());
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, 0xFFFFFFFFFFFF);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _));
stream_->OnStreamReset(rst_frame);
EXPECT_TRUE(stream_->HasReceivedFinalOffset());
}
TEST_P(QuicStreamTest, FinalByteOffsetFromZeroLengthStreamFrame) {
Initialize();
EXPECT_FALSE(stream_->HasReceivedFinalOffset());
const QuicStreamOffset kByteOffsetExceedingFlowControlWindow =
kInitialSessionFlowControlWindowForTest + 1;
const QuicStreamOffset current_stream_flow_control_offset =
QuicStreamPeer::ReceiveWindowOffset(stream_);
const QuicStreamOffset current_connection_flow_control_offset =
QuicFlowControllerPeer::ReceiveWindowOffset(session_->flow_controller());
ASSERT_GT(kByteOffsetExceedingFlowControlWindow,
current_stream_flow_control_offset);
ASSERT_GT(kByteOffsetExceedingFlowControlWindow,
current_connection_flow_control_offset);
QuicStreamFrame zero_length_stream_frame_with_fin(
stream_->id(), true, kByteOffsetExceedingFlowControlWindow,
absl::string_view());
EXPECT_EQ(0, zero_length_stream_frame_with_fin.data_length);
EXPECT_CALL(*connection_, CloseConnection(_, _, _)).Times(0);
stream_->OnStreamFrame(zero_length_stream_frame_with_fin);
EXPECT_TRUE(stream_->HasReceivedFinalOffset());
EXPECT_EQ(current_stream_flow_control_offset,
QuicStreamPeer::ReceiveWindowOffset(stream_));
EXPECT_EQ(
current_connection_flow_control_offset,
QuicFlowControllerPeer::ReceiveWindowOffset(session_->flow_controller()));
}
TEST_P(QuicStreamTest, OnStreamResetOffsetOverflow) {
Initialize();
QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(),
QUIC_STREAM_CANCELLED, kMaxStreamLength + 1);
EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _));
stream_->OnStreamReset(rst_frame);
}
TEST_P(QuicStreamTest, OnStreamFrameUpperLimit) {
Initialize();
QuicStreamPeer::SetReceiveWindowOffset(stream_, kMaxStreamLength + 5u);
QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(),
kMaxStreamLength + 5u);
QuicStreamSequencerPeer::SetFrameBufferTotalBytesRead(
QuicStreamPeer::sequencer(stream_), kMaxStreamLength - 10u);
EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _))
.Times(0);
QuicStreamFrame stream_frame(stream_->id(), false, kMaxStreamLength - 1, ".");
stream_->OnStreamFrame(stream_frame);
QuicStreamFrame stream_frame2(stream_->id(), true, kMaxStreamLength, "");
stream_->OnStreamFrame(stream_frame2);
}
TEST_P(QuicStreamTest, StreamTooLong) {
Initialize();
QuicStreamFrame stream_frame(stream_->id(), false, kMaxStreamLength, ".");
EXPECT_QUIC_PEER_BUG(
{
EXPECT_CALL(*connection_,
CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _))
.Times(1);
stream_->OnStreamFrame(stream_frame);
},
absl::StrCat("Receive stream frame on stream ", stream_->id(),
" reaches max stream length"));
}
TEST_P(QuicStreamTest, SetDrainingIncomingOutgoing) { |
262 | cpp | google/quiche | quic_packets | quiche/quic/core/quic_packets.cc | quiche/quic/core/quic_packets_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_PACKETS_H_
#define QUICHE_QUIC_CORE_QUIC_PACKETS_H_
#include <sys/types.h>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_ack_listener_interface.h"
#include "quiche/quic/core/quic_bandwidth.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
class QuicPacket;
struct QuicPacketHeader;
QUICHE_EXPORT QuicConnectionId GetServerConnectionIdAsRecipient(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT QuicConnectionId GetClientConnectionIdAsRecipient(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT QuicConnectionId GetServerConnectionIdAsSender(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT QuicConnectionIdIncluded GetServerConnectionIdIncludedAsSender(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT QuicConnectionId GetClientConnectionIdAsSender(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT QuicConnectionIdIncluded GetClientConnectionIdIncludedAsSender(
const QuicPacketHeader& header, Perspective perspective);
QUICHE_EXPORT uint8_t
GetIncludedConnectionIdLength(QuicConnectionId connection_id,
QuicConnectionIdIncluded connection_id_included);
QUICHE_EXPORT uint8_t
GetIncludedDestinationConnectionIdLength(const QuicPacketHeader& header);
QUICHE_EXPORT uint8_t
GetIncludedSourceConnectionIdLength(const QuicPacketHeader& header);
QUICHE_EXPORT size_t GetPacketHeaderSize(QuicTransportVersion version,
const QuicPacketHeader& header);
QUICHE_EXPORT size_t GetPacketHeaderSize(
QuicTransportVersion version, uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool include_version,
bool include_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length);
QUICHE_EXPORT size_t GetStartOfEncryptedData(QuicTransportVersion version,
const QuicPacketHeader& header);
QUICHE_EXPORT size_t GetStartOfEncryptedData(
QuicTransportVersion version, uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool include_version,
bool include_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length);
struct QUICHE_EXPORT QuicPacketHeader {
QuicPacketHeader();
QuicPacketHeader(const QuicPacketHeader& other);
~QuicPacketHeader();
QuicPacketHeader& operator=(const QuicPacketHeader& other);
QUICHE_EXPORT friend std::ostream& operator<<(std::ostream& os,
const QuicPacketHeader& header);
QuicConnectionId destination_connection_id;
QuicConnectionIdIncluded destination_connection_id_included;
QuicConnectionId source_connection_id;
QuicConnectionIdIncluded source_connection_id_included;
bool reset_flag;
bool version_flag;
bool has_possible_stateless_reset_token;
QuicPacketNumberLength packet_number_length;
uint8_t type_byte;
ParsedQuicVersion version;
DiversificationNonce* nonce;
QuicPacketNumber packet_number;
PacketHeaderFormat form;
QuicLongHeaderType long_packet_type;
StatelessResetToken possible_stateless_reset_token;
quiche::QuicheVariableLengthIntegerLength retry_token_length_length;
absl::string_view retry_token;
quiche::QuicheVariableLengthIntegerLength length_length;
QuicByteCount remaining_packet_length;
bool operator==(const QuicPacketHeader& other) const;
bool operator!=(const QuicPacketHeader& other) const;
};
struct QUICHE_EXPORT QuicPublicResetPacket {
QuicPublicResetPacket();
explicit QuicPublicResetPacket(QuicConnectionId connection_id);
QuicConnectionId connection_id;
QuicPublicResetNonceProof nonce_proof;
QuicSocketAddress client_address;
std::string endpoint_id;
};
struct QUICHE_EXPORT QuicVersionNegotiationPacket {
QuicVersionNegotiationPacket();
explicit QuicVersionNegotiationPacket(QuicConnectionId connection_id);
QuicVersionNegotiationPacket(const QuicVersionNegotiationPacket& other);
~QuicVersionNegotiationPacket();
QuicConnectionId connection_id;
ParsedQuicVersionVector versions;
};
struct QUICHE_EXPORT QuicIetfStatelessResetPacket {
QuicIetfStatelessResetPacket();
QuicIetfStatelessResetPacket(const QuicPacketHeader& header,
StatelessResetToken token);
QuicIetfStatelessResetPacket(const QuicIetfStatelessResetPacket& other);
~QuicIetfStatelessResetPacket();
QuicPacketHeader header;
StatelessResetToken stateless_reset_token;
};
class QUICHE_EXPORT QuicData {
public:
QuicData(const char* buffer, size_t length);
QuicData(const char* buffer, size_t length, bool owns_buffer);
QuicData(absl::string_view data);
QuicData(const QuicData&) = delete;
QuicData& operator=(const QuicData&) = delete;
virtual ~QuicData();
absl::string_view AsStringPiece() const {
return absl::string_view(data(), length());
}
const char* data() const { return buffer_; }
size_t length() const { return length_; }
private:
const char* buffer_;
size_t length_;
bool owns_buffer_;
};
class QUICHE_EXPORT QuicPacket : public QuicData {
public:
QuicPacket(
char* buffer, size_t length, bool owns_buffer,
uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool includes_version,
bool includes_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length);
QuicPacket(QuicTransportVersion version, char* buffer, size_t length,
bool owns_buffer, const QuicPacketHeader& header);
QuicPacket(const QuicPacket&) = delete;
QuicPacket& operator=(const QuicPacket&) = delete;
absl::string_view AssociatedData(QuicTransportVersion version) const;
absl::string_view Plaintext(QuicTransportVersion version) const;
char* mutable_data() { return buffer_; }
private:
char* buffer_;
const uint8_t destination_connection_id_length_;
const uint8_t source_connection_id_length_;
const bool includes_version_;
const bool includes_diversification_nonce_;
const QuicPacketNumberLength packet_number_length_;
const quiche::QuicheVariableLengthIntegerLength retry_token_length_length_;
const QuicByteCount retry_token_length_;
const quiche::QuicheVariableLengthIntegerLength length_length_;
};
class QUICHE_EXPORT QuicEncryptedPacket : public QuicData {
public:
QuicEncryptedPacket(const char* buffer, size_t length);
QuicEncryptedPacket(const char* buffer, size_t length, bool owns_buffer);
QuicEncryptedPacket(absl::string_view data);
QuicEncryptedPacket(const QuicEncryptedPacket&) = delete;
QuicEncryptedPacket& operator=(const QuicEncryptedPacket&) = delete;
std::unique_ptr<QuicEncryptedPacket> Clone() const;
QUICHE_EXPORT friend std::ostream& operator<<(std::ostream& os,
const QuicEncryptedPacket& s);
};
namespace test {
class QuicReceivedPacketPeer;
}
class QUICHE_EXPORT QuicReceivedPacket : public QuicEncryptedPacket {
public:
QuicReceivedPacket(const char* buffer, size_t length, QuicTime receipt_time);
QuicReceivedPacket(const char* buffer, size_t length, QuicTime receipt_time,
bool owns_buffer);
QuicReceivedPacket(const char* buffer, size_t length, QuicTime receipt_time,
bool owns_buffer, int ttl, bool ttl_valid);
QuicReceivedPacket(const char* buffer, size_t length, QuicTime receipt_time,
bool owns_buffer, int ttl, bool ttl_valid,
char* packet_headers, size_t headers_length,
bool owns_header_buffer);
QuicReceivedPacket(const char* buffer, size_t length, QuicTime receipt_time,
bool owns_buffer, int ttl, bool ttl_valid,
char* packet_headers, size_t headers_length,
bool owns_header_buffer, QuicEcnCodepoint ecn_codepoint);
~QuicReceivedPacket();
QuicReceivedPacket(const QuicReceivedPacket&) = delete;
QuicReceivedPacket& operator=(const QuicReceivedPacket&) = delete;
std::unique_ptr<QuicReceivedPacket> Clone() const;
QuicTime receipt_time() const { return receipt_time_; }
int ttl() const { return ttl_; }
char* packet_headers() const { return packet_headers_; }
int headers_length() const { return headers_length_; }
QUICHE_EXPORT friend std::ostream& operator<<(std::ostream& os,
const QuicReceivedPacket& s);
QuicEcnCodepoint ecn_codepoint() const { return ecn_codepoint_; }
private:
friend class test::QuicReceivedPacketPeer;
const QuicTime receipt_time_;
int ttl_;
char* packet_headers_;
int headers_length_;
bool owns_header_buffer_;
QuicEcnCodepoint ecn_codepoint_;
};
struct QUICHE_EXPORT SerializedPacket {
SerializedPacket(QuicPacketNumber packet_number,
QuicPacketNumberLength packet_number_length,
const char* encrypted_buffer,
QuicPacketLength encrypted_length, bool has_ack,
bool has_stop_waiting);
SerializedPacket(const SerializedPacket& other) = delete;
SerializedPacket& operator=(const SerializedPacket& other) = delete;
SerializedPacket(SerializedPacket&& other);
~SerializedPacket();
const char* encrypted_buffer;
QuicPacketLength encrypted_length;
std::function<void(const char*)> release_encrypted_buffer;
QuicFrames retransmittable_frames;
QuicFrames nonretransmittable_frames;
IsHandshake has_crypto_handshake;
QuicPacketNumber packet_number;
QuicPacketNumberLength packet_number_length;
EncryptionLevel encryption_level;
bool has_ack;
bool has_stop_waiting;
bool has_ack_ecn = false;
TransmissionType transmission_type;
QuicPacketNumber largest_acked;
bool has_ack_frame_copy;
bool has_ack_frequency;
bool has_message;
SerializedPacketFate fate;
QuicSocketAddress peer_address;
std::optional<QuicByteCount> bytes_not_retransmitted;
std::optional<QuicPacketHeader> initial_header;
};
QUICHE_EXPORT SerializedPacket* CopySerializedPacket(
const SerializedPacket& serialized,
quiche::QuicheBufferAllocator* allocator, bool copy_buffer);
QUICHE_EXPORT char* CopyBuffer(const SerializedPacket& packet);
QUICHE_EXPORT char* CopyBuffer(const char* encrypted_buffer,
QuicPacketLength encrypted_length);
struct QUICHE_EXPORT QuicPerPacketContext {
virtual ~QuicPerPacketContext() {}
};
struct QUICHE_EXPORT ReceivedPacketInfo {
ReceivedPacketInfo(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet);
ReceivedPacketInfo(const ReceivedPacketInfo& other) = default;
~ReceivedPacketInfo();
std::string ToString() const;
QUICHE_EXPORT friend std::ostream& operator<<(
std::ostream& os, const ReceivedPacketInfo& packet_info);
const QuicSocketAddress& self_address;
const QuicSocketAddress& peer_address;
const QuicReceivedPacket& packet;
PacketHeaderFormat form;
QuicLongHeaderType long_packet_type;
bool version_flag;
bool use_length_prefix;
QuicVersionLabel version_label;
ParsedQuicVersion version;
QuicConnectionId destination_connection_id;
QuicConnectionId source_connection_id;
std::optional<absl::string_view> retry_token;
};
}
#endif
#include "quiche/quic/core/quic_packets.h"
#include <algorithm>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include "absl/strings/escaping.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
QuicConnectionId GetServerConnectionIdAsRecipient(
const QuicPacketHeader& header, Perspective perspective) {
if (perspective == Perspective::IS_SERVER) {
return header.destination_connection_id;
}
return header.source_connection_id;
}
QuicConnectionId GetClientConnectionIdAsRecipient(
const QuicPacketHeader& header, Perspective perspective) {
if (perspective == Perspective::IS_CLIENT) {
return header.destination_connection_id;
}
return header.source_connection_id;
}
QuicConnectionId GetServerConnectionIdAsSender(const QuicPacketHeader& header,
Perspective perspective) {
if (perspective == Perspective::IS_CLIENT) {
return header.destination_connection_id;
}
return header.source_connection_id;
}
QuicConnectionIdIncluded GetServerConnectionIdIncludedAsSender(
const QuicPacketHeader& header, Perspective perspective) {
if (perspective == Perspective::IS_CLIENT) {
return header.destination_connection_id_included;
}
return header.source_connection_id_included;
}
QuicConnectionId GetClientConnectionIdAsSender(const QuicPacketHeader& header,
Perspective perspective) {
if (perspective == Perspective::IS_CLIENT) {
return header.source_connection_id;
}
return header.destination_connection_id;
}
QuicConnectionIdIncluded GetClientConnectionIdIncludedAsSender(
const QuicPacketHeader& header, Perspective perspective) {
if (perspective == Perspective::IS_CLIENT) {
return header.source_connection_id_included;
}
return header.destination_connection_id_included;
}
uint8_t GetIncludedConnectionIdLength(
QuicConnectionId connection_id,
QuicConnectionIdIncluded connection_id_included) {
QUICHE_DCHECK(connection_id_included == CONNECTION_ID_PRESENT ||
connection_id_included == CONNECTION_ID_ABSENT);
return connection_id_included == CONNECTION_ID_PRESENT
? connection_id.length()
: 0;
}
uint8_t GetIncludedDestinationConnectionIdLength(
const QuicPacketHeader& header) {
return GetIncludedConnectionIdLength(
header.destination_connection_id,
header.destination_connection_id_included);
}
uint8_t GetIncludedSourceConnectionIdLength(const QuicPacketHeader& header) {
return GetIncludedConnectionIdLength(header.source_connection_id,
header.source_connection_id_included);
}
size_t GetPacketHeaderSize(QuicTransportVersion version,
const QuicPacketHeader& header) {
return GetPacketHeaderSize(
version, GetIncludedDestinationConnectionIdLength(header),
GetIncludedSourceConnectionIdLength(header), header.version_flag,
header.nonce != nullptr, header.packet_number_length,
header.retry_token_length_length, header.retry_token.length(),
header.length_length);
}
size_t GetPacketHeaderSize(
QuicTransportVersion version, uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool include_version,
bool include_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length) {
if (include_version) {
size_t size = kPacketHeaderTypeSize + kConnectionIdLengthSize +
destination_connection_id_length +
source_connection_id_length + packet_number_length +
kQuicVersionSize;
if (include_diversification_nonce) {
size += kDiversificationNonceSize;
}
if (VersionHasLengthPrefixedConnectionIds(version)) {
size += kConnectionIdLengthSize;
}
QUICHE_DCHECK(
QuicVersionHasLongHeaderLengths(version) ||
retry_token_length_length + retry_token_length + length_length == 0);
if (QuicVersionHasLongHeaderLengths(version)) {
size += retry_token_length_length + retry_token_length + length_length;
}
return size;
}
return kPacketHeaderTypeSize + destination_connection_id_length +
packet_number_length;
}
size_t GetStartOfEncryptedData(QuicTransportVersion version,
const QuicPacketHeader& header) {
return GetPacketHeaderSize(version, header);
}
size_t GetStartOfEncryptedData(
QuicTransportVersion version, uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool include_version,
bool include_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length) {
return GetPacketHeaderSize(
version, destination_connection_id_length, source_connection_id_length,
include_version, include_diversification_nonce, packet_number_length,
retry_token_length_length, retry_token_length, length_length);
}
QuicPacketHeader::QuicPacketHeader()
: destination_connection_id(EmptyQuicConnectionId()),
destination_connection_id_included(CONNECTION_ID_PRESENT),
source_connection_id(EmptyQuicConnectionId()),
source_connection_id_included(CONNECTION_ID_ABSENT),
reset_flag(false),
version_flag(false),
has_possible_stateless_reset_token(false),
packet_number_length(PACKET_4BYTE_PACKET_NUMBER),
type_byte(0),
version(UnsupportedQuicVersion()),
nonce(nullptr),
form(GOOGLE_QUIC_PACKET),
long_packet_type(INITIAL),
possible_stateless_reset_token({}),
retry_token_length_length(quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0),
retry_token(absl::string_view()),
length_length(quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0),
remaining_packet_length(0) {}
QuicPacketHeader::QuicPacketHeader(const QuicPacketHeader& other) = default;
QuicPacketHeader::~QuicPacketHeader() {}
QuicPacketHeader& QuicPacketHeader::operator=(const QuicPacketHeader& other) =
default;
QuicPublicResetPacket::QuicPublicResetPacket()
: connection_id(EmptyQuicConnectionId()), nonce_proof(0) {}
QuicPublicResetPacket::QuicPublicResetPacket(QuicConnectionId connection_id)
: connection_id(connection_id), nonce_proof(0) {}
QuicVersionNegotiationPacket::QuicVersionNegotiationPacket()
: connection_id(EmptyQuicConnectionId()) {}
QuicVersionNegotiationPacket::QuicVersionNegotiationPacket(
QuicConnectionId connection_id)
: connection_id(connection_id) {}
QuicVersionNegotiationPacket::QuicVersionNegotiationPacket(
const QuicVersionNegotiationPacket& other) = default;
QuicVersionNegotiationPacket::~QuicVersionNegotiationPacket() {}
QuicIetfStatelessResetPacket::QuicIetfStatelessResetPacket()
: stateless_reset_token({}) {}
QuicIetfStatelessResetPacket::QuicIetfStatelessResetPacket(
const QuicPacketHeader& header, StatelessResetToken token)
: header(header), stateless_reset_token(token) {}
QuicIetfStatelessResetPacket::QuicIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& other) = default;
QuicIetfStatelessResetPacket::~QuicIetfStatelessResetPacket() {}
std::ostream& operator<<(std::ostream& os, const QuicPacketHeader& header) {
os << "{ destination_connection_id: " << header.destination_connection_id
<< " ("
<< (header.destination_connection_id_included == CONNECTION_ID_PRESENT
? "present"
: "absent")
<< "), source_connection_id: " << header.source_connection_id << " ("
<< (header.source_connection_id_included == CONNECTION_ID_PRESENT
? "present"
: "absent")
<< "), packet_number_length: "
<< static_cast<int>(header.packet_number_length)
<< ", reset_flag: " << header.reset_flag
<< ", version_flag: " << header.version_flag;
if (header.version_flag) {
os << ", version: " << ParsedQuicVersionToString(header.version);
if (header.long_packet_type != INVALID_PACKET_TYPE) {
os << ", long_packet_type: "
<< QuicUtils::QuicLongHeaderTypetoString(header.long_packet_type);
}
if (header.retry_token_length_length !=
quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0) {
os << ", retry_token_length_length: "
<< static_cast<int>(header.retry_token_length_length);
}
if (header.retry_token.length() != 0) {
os << ", retry_token_length: " << header.retry_token.length();
}
if (header.length_length != quiche::VARIABLE_LENGTH_INTEGER_LENGTH_0) {
os << ", length_length: " << static_cast<int>(header.length_length);
}
if (header.remaining_packet_length != 0) {
os << ", remaining_packet_length: " << header.remaining_packet_length;
}
}
if (header.nonce != nullptr) {
os << ", diversification_nonce: "
<< absl::BytesToHexString(
absl::string_view(header.nonce->data(), header.nonce->size()));
}
os << ", packet_number: " << header.packet_number << " }\n";
return os;
}
QuicData::QuicData(const char* buffer, size_t length)
: buffer_(buffer), length_(length), owns_buffer_(false) {}
QuicData::QuicData(const char* buffer, size_t length, bool owns_buffer)
: buffer_(buffer), length_(length), owns_buffer_(owns_buffer) {}
QuicData::QuicData(absl::string_view packet_data)
: buffer_(packet_data.data()),
length_(packet_data.length()),
owns_buffer_(false) {}
QuicData::~QuicData() {
if (owns_buffer_) {
delete[] const_cast<char*>(buffer_);
}
}
QuicPacket::QuicPacket(
char* buffer, size_t length, bool owns_buffer,
uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool includes_version,
bool includes_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
QuicByteCount retry_token_length,
quiche::QuicheVariableLengthIntegerLength length_length)
: QuicData(buffer, length, owns_buffer),
buffer_(buffer),
destination_connection_id_length_(destination_connection_id_length),
source_connection_id_length_(source_connection_id_length),
includes_version_(includes_version),
includes_diversification_nonce_(includes_diversification_nonce),
packet_number_length_(packet_number_length),
retry_token_length_length_(retry_token_length_length),
retry_token_length_(retry_token_length),
length_length_(length_length) {}
QuicPacket::QuicPacket(QuicTransportVersion , char* buffer,
size_t length, bool owns_buffer,
const QuicPacketHeader& header)
: QuicPacket(buffer, length, owns_buffer,
GetIncludedDestinationConnectionIdLength(header),
GetIncludedSourceConnectionIdLength(header),
header.version_flag, header.nonce != nullptr,
header.packet_number_length, header.retry_token_length_length,
header.retry_token.length(), header.length_length) {}
QuicEncryptedPacket::QuicEncryptedPacket(const char* buffer, size_t length)
: QuicData(buffer, length) {}
QuicEncryptedPacket::QuicEncryptedPacket(const char* buffer, size_t length,
bool owns_buffer)
: QuicData(buffer, length, owns_buffer) {}
QuicEncryptedPacket::QuicEncryptedPacket(absl::string_view data)
: QuicData(data) {}
std::unique_ptr<QuicEncryptedPacket> QuicEncryptedPacket::Clone() const {
char* buffer = new char[this->length()];
std::copy(this->data(), this->data() + this->length(), buffer);
return std::make_unique<QuicEncryptedPacket>(buffer, this->length(), true);
}
std::ostream& operator<<(std::ostream& os, const QuicEncryptedPacket& s) {
os << s.length() << "-byte data";
return os;
}
QuicReceivedPacket::QuicReceivedPacket(const char* buffer, size_t length,
QuicTime receipt_time)
: QuicReceivedPacket(buffer, length, receipt_time,
false ) {}
QuicReceivedPacket::QuicReceivedPacket(const char* buffer, size_t length,
QuicTime receipt_time, bool owns_buffer)
: QuicReceivedPacket(buffer, length, receipt_time, owns_buffer, 0 ,
true ) {}
QuicReceivedPacket::QuicReceivedPacket(const char* buffer, size_t length,
QuicTime receipt_time, bool owns_buffer,
int ttl, bool ttl_valid)
: quic::QuicReceivedPacket(buffer, length, receipt_time, owns_buffer, ttl,
ttl_valid, nullptr ,
0 ,
false , ECN_NOT_ECT) {}
QuicReceivedPacket::QuicReceivedPacket(const char* buffer, size_t length,
QuicTime receipt_time, bool owns_buffer,
int ttl, bool ttl_valid,
char* packet_heade | #include "quiche/quic/core/quic_packets.h"
#include <memory>
#include <string>
#include "absl/memory/memory.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
namespace quic {
namespace test {
namespace {
QuicPacketHeader CreateFakePacketHeader() {
QuicPacketHeader header;
header.destination_connection_id = TestConnectionId(1);
header.destination_connection_id_included = CONNECTION_ID_PRESENT;
header.source_connection_id = TestConnectionId(2);
header.source_connection_id_included = CONNECTION_ID_ABSENT;
return header;
}
class QuicPacketsTest : public QuicTest {};
TEST_F(QuicPacketsTest, GetServerConnectionIdAsRecipient) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(TestConnectionId(1),
GetServerConnectionIdAsRecipient(header, Perspective::IS_SERVER));
EXPECT_EQ(TestConnectionId(2),
GetServerConnectionIdAsRecipient(header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, GetServerConnectionIdAsSender) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(TestConnectionId(2),
GetServerConnectionIdAsSender(header, Perspective::IS_SERVER));
EXPECT_EQ(TestConnectionId(1),
GetServerConnectionIdAsSender(header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, GetServerConnectionIdIncludedAsSender) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(CONNECTION_ID_ABSENT, GetServerConnectionIdIncludedAsSender(
header, Perspective::IS_SERVER));
EXPECT_EQ(CONNECTION_ID_PRESENT, GetServerConnectionIdIncludedAsSender(
header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, GetClientConnectionIdIncludedAsSender) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(CONNECTION_ID_PRESENT, GetClientConnectionIdIncludedAsSender(
header, Perspective::IS_SERVER));
EXPECT_EQ(CONNECTION_ID_ABSENT, GetClientConnectionIdIncludedAsSender(
header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, GetClientConnectionIdAsRecipient) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(TestConnectionId(2),
GetClientConnectionIdAsRecipient(header, Perspective::IS_SERVER));
EXPECT_EQ(TestConnectionId(1),
GetClientConnectionIdAsRecipient(header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, GetClientConnectionIdAsSender) {
QuicPacketHeader header = CreateFakePacketHeader();
EXPECT_EQ(TestConnectionId(1),
GetClientConnectionIdAsSender(header, Perspective::IS_SERVER));
EXPECT_EQ(TestConnectionId(2),
GetClientConnectionIdAsSender(header, Perspective::IS_CLIENT));
}
TEST_F(QuicPacketsTest, CopyQuicPacketHeader) {
QuicPacketHeader header;
QuicPacketHeader header2 = CreateFakePacketHeader();
EXPECT_NE(header, header2);
QuicPacketHeader header3(header2);
EXPECT_EQ(header2, header3);
}
TEST_F(QuicPacketsTest, CopySerializedPacket) {
std::string buffer(1000, 'a');
quiche::SimpleBufferAllocator allocator;
SerializedPacket packet(QuicPacketNumber(1), PACKET_1BYTE_PACKET_NUMBER,
buffer.data(), buffer.length(), false,
false);
packet.retransmittable_frames.push_back(QuicFrame(QuicWindowUpdateFrame()));
packet.retransmittable_frames.push_back(QuicFrame(QuicStreamFrame()));
QuicAckFrame ack_frame(InitAckFrame(1));
packet.nonretransmittable_frames.push_back(QuicFrame(&ack_frame));
packet.nonretransmittable_frames.push_back(QuicFrame(QuicPaddingFrame(-1)));
std::unique_ptr<SerializedPacket> copy = absl::WrapUnique<SerializedPacket>(
CopySerializedPacket(packet, &allocator, true));
EXPECT_EQ(quic::QuicPacketNumber(1), copy->packet_number);
EXPECT_EQ(PACKET_1BYTE_PACKET_NUMBER, copy->packet_number_length);
ASSERT_EQ(2u, copy->retransmittable_frames.size());
EXPECT_EQ(WINDOW_UPDATE_FRAME, copy->retransmittable_frames[0].type);
EXPECT_EQ(STREAM_FRAME, copy->retransmittable_frames[1].type);
ASSERT_EQ(2u, copy->nonretransmittable_frames.size());
EXPECT_EQ(ACK_FRAME, copy->nonretransmittable_frames[0].type);
EXPECT_EQ(PADDING_FRAME, copy->nonretransmittable_frames[1].type);
EXPECT_EQ(1000u, copy->encrypted_length);
quiche::test::CompareCharArraysWithHexError(
"encrypted_buffer", copy->encrypted_buffer, copy->encrypted_length,
packet.encrypted_buffer, packet.encrypted_length);
std::unique_ptr<SerializedPacket> copy2 = absl::WrapUnique<SerializedPacket>(
CopySerializedPacket(packet, &allocator, false));
EXPECT_EQ(packet.encrypted_buffer, copy2->encrypted_buffer);
EXPECT_EQ(1000u, copy2->encrypted_length);
}
TEST_F(QuicPacketsTest, CloneReceivedPacket) {
char header[4] = "bar";
QuicReceivedPacket packet("foo", 3, QuicTime::Zero(), false, 0, true, header,
sizeof(header) - 1, false,
QuicEcnCodepoint::ECN_ECT1);
std::unique_ptr<QuicReceivedPacket> copy = packet.Clone();
EXPECT_EQ(packet.ecn_codepoint(), copy->ecn_codepoint());
}
}
}
} |
263 | cpp | google/quiche | uber_received_packet_manager | quiche/quic/core/uber_received_packet_manager.cc | quiche/quic/core/uber_received_packet_manager_test.cc | #ifndef QUICHE_QUIC_CORE_UBER_RECEIVED_PACKET_MANAGER_H_
#define QUICHE_QUIC_CORE_UBER_RECEIVED_PACKET_MANAGER_H_
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/quic_received_packet_manager.h"
namespace quic {
class QUICHE_EXPORT UberReceivedPacketManager {
public:
explicit UberReceivedPacketManager(QuicConnectionStats* stats);
UberReceivedPacketManager(const UberReceivedPacketManager&) = delete;
UberReceivedPacketManager& operator=(const UberReceivedPacketManager&) =
delete;
virtual ~UberReceivedPacketManager();
void SetFromConfig(const QuicConfig& config, Perspective perspective);
bool IsAwaitingPacket(EncryptionLevel decrypted_packet_level,
QuicPacketNumber packet_number) const;
void RecordPacketReceived(EncryptionLevel decrypted_packet_level,
const QuicPacketHeader& header,
QuicTime receipt_time,
QuicEcnCodepoint ecn_codepoint);
const QuicFrame GetUpdatedAckFrame(PacketNumberSpace packet_number_space,
QuicTime approximate_now);
void DontWaitForPacketsBefore(EncryptionLevel decrypted_packet_level,
QuicPacketNumber least_unacked);
void MaybeUpdateAckTimeout(bool should_last_packet_instigate_acks,
EncryptionLevel decrypted_packet_level,
QuicPacketNumber last_received_packet_number,
QuicTime last_packet_receipt_time, QuicTime now,
const RttStats* rtt_stats);
void ResetAckStates(EncryptionLevel encryption_level);
void EnableMultiplePacketNumberSpacesSupport(Perspective perspective);
bool IsAckFrameUpdated() const;
QuicPacketNumber GetLargestObserved(
EncryptionLevel decrypted_packet_level) const;
QuicTime GetAckTimeout(PacketNumberSpace packet_number_space) const;
QuicTime GetEarliestAckTimeout() const;
bool IsAckFrameEmpty(PacketNumberSpace packet_number_space) const;
size_t min_received_before_ack_decimation() const;
void set_min_received_before_ack_decimation(size_t new_value);
void set_ack_frequency(size_t new_value);
bool supports_multiple_packet_number_spaces() const {
return supports_multiple_packet_number_spaces_;
}
const QuicAckFrame& ack_frame() const;
const QuicAckFrame& GetAckFrame(PacketNumberSpace packet_number_space) const;
void set_max_ack_ranges(size_t max_ack_ranges);
void OnAckFrequencyFrame(const QuicAckFrequencyFrame& frame);
void set_save_timestamps(bool save_timestamps);
private:
friend class test::QuicConnectionPeer;
friend class test::UberReceivedPacketManagerPeer;
QuicReceivedPacketManager received_packet_managers_[NUM_PACKET_NUMBER_SPACES];
bool supports_multiple_packet_number_spaces_;
};
}
#endif
#include "quiche/quic/core/uber_received_packet_manager.h"
#include <algorithm>
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
namespace quic {
UberReceivedPacketManager::UberReceivedPacketManager(QuicConnectionStats* stats)
: supports_multiple_packet_number_spaces_(false) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.set_connection_stats(stats);
}
}
UberReceivedPacketManager::~UberReceivedPacketManager() {}
void UberReceivedPacketManager::SetFromConfig(const QuicConfig& config,
Perspective perspective) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.SetFromConfig(config, perspective);
}
}
bool UberReceivedPacketManager::IsAwaitingPacket(
EncryptionLevel decrypted_packet_level,
QuicPacketNumber packet_number) const {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].IsAwaitingPacket(packet_number);
}
return received_packet_managers_[QuicUtils::GetPacketNumberSpace(
decrypted_packet_level)]
.IsAwaitingPacket(packet_number);
}
const QuicFrame UberReceivedPacketManager::GetUpdatedAckFrame(
PacketNumberSpace packet_number_space, QuicTime approximate_now) {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].GetUpdatedAckFrame(approximate_now);
}
return received_packet_managers_[packet_number_space].GetUpdatedAckFrame(
approximate_now);
}
void UberReceivedPacketManager::RecordPacketReceived(
EncryptionLevel decrypted_packet_level, const QuicPacketHeader& header,
QuicTime receipt_time, QuicEcnCodepoint ecn_codepoint) {
if (!supports_multiple_packet_number_spaces_) {
received_packet_managers_[0].RecordPacketReceived(header, receipt_time,
ecn_codepoint);
return;
}
received_packet_managers_[QuicUtils::GetPacketNumberSpace(
decrypted_packet_level)]
.RecordPacketReceived(header, receipt_time, ecn_codepoint);
}
void UberReceivedPacketManager::DontWaitForPacketsBefore(
EncryptionLevel decrypted_packet_level, QuicPacketNumber least_unacked) {
if (!supports_multiple_packet_number_spaces_) {
received_packet_managers_[0].DontWaitForPacketsBefore(least_unacked);
return;
}
received_packet_managers_[QuicUtils::GetPacketNumberSpace(
decrypted_packet_level)]
.DontWaitForPacketsBefore(least_unacked);
}
void UberReceivedPacketManager::MaybeUpdateAckTimeout(
bool should_last_packet_instigate_acks,
EncryptionLevel decrypted_packet_level,
QuicPacketNumber last_received_packet_number,
QuicTime last_packet_receipt_time, QuicTime now,
const RttStats* rtt_stats) {
if (!supports_multiple_packet_number_spaces_) {
received_packet_managers_[0].MaybeUpdateAckTimeout(
should_last_packet_instigate_acks, last_received_packet_number,
last_packet_receipt_time, now, rtt_stats);
return;
}
received_packet_managers_[QuicUtils::GetPacketNumberSpace(
decrypted_packet_level)]
.MaybeUpdateAckTimeout(should_last_packet_instigate_acks,
last_received_packet_number,
last_packet_receipt_time, now, rtt_stats);
}
void UberReceivedPacketManager::ResetAckStates(
EncryptionLevel encryption_level) {
if (!supports_multiple_packet_number_spaces_) {
received_packet_managers_[0].ResetAckStates();
return;
}
received_packet_managers_[QuicUtils::GetPacketNumberSpace(encryption_level)]
.ResetAckStates();
if (encryption_level == ENCRYPTION_INITIAL) {
received_packet_managers_[INITIAL_DATA].set_local_max_ack_delay(
kAlarmGranularity);
}
}
void UberReceivedPacketManager::EnableMultiplePacketNumberSpacesSupport(
Perspective perspective) {
if (supports_multiple_packet_number_spaces_) {
QUIC_BUG(quic_bug_10495_1)
<< "Multiple packet number spaces has already been enabled";
return;
}
if (received_packet_managers_[0].GetLargestObserved().IsInitialized()) {
QUIC_BUG(quic_bug_10495_2)
<< "Try to enable multiple packet number spaces support after any "
"packet has been received.";
return;
}
if (perspective == Perspective::IS_CLIENT) {
received_packet_managers_[INITIAL_DATA].set_local_max_ack_delay(
kAlarmGranularity);
}
received_packet_managers_[HANDSHAKE_DATA].set_local_max_ack_delay(
kAlarmGranularity);
supports_multiple_packet_number_spaces_ = true;
}
bool UberReceivedPacketManager::IsAckFrameUpdated() const {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].ack_frame_updated();
}
for (const auto& received_packet_manager : received_packet_managers_) {
if (received_packet_manager.ack_frame_updated()) {
return true;
}
}
return false;
}
QuicPacketNumber UberReceivedPacketManager::GetLargestObserved(
EncryptionLevel decrypted_packet_level) const {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].GetLargestObserved();
}
return received_packet_managers_[QuicUtils::GetPacketNumberSpace(
decrypted_packet_level)]
.GetLargestObserved();
}
QuicTime UberReceivedPacketManager::GetAckTimeout(
PacketNumberSpace packet_number_space) const {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].ack_timeout();
}
return received_packet_managers_[packet_number_space].ack_timeout();
}
QuicTime UberReceivedPacketManager::GetEarliestAckTimeout() const {
QuicTime ack_timeout = QuicTime::Zero();
for (const auto& received_packet_manager : received_packet_managers_) {
const QuicTime timeout = received_packet_manager.ack_timeout();
if (!ack_timeout.IsInitialized()) {
ack_timeout = timeout;
continue;
}
if (timeout.IsInitialized()) {
ack_timeout = std::min(ack_timeout, timeout);
}
}
return ack_timeout;
}
bool UberReceivedPacketManager::IsAckFrameEmpty(
PacketNumberSpace packet_number_space) const {
if (!supports_multiple_packet_number_spaces_) {
return received_packet_managers_[0].IsAckFrameEmpty();
}
return received_packet_managers_[packet_number_space].IsAckFrameEmpty();
}
size_t UberReceivedPacketManager::min_received_before_ack_decimation() const {
return received_packet_managers_[0].min_received_before_ack_decimation();
}
void UberReceivedPacketManager::set_min_received_before_ack_decimation(
size_t new_value) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.set_min_received_before_ack_decimation(new_value);
}
}
void UberReceivedPacketManager::set_ack_frequency(size_t new_value) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.set_ack_frequency(new_value);
}
}
const QuicAckFrame& UberReceivedPacketManager::ack_frame() const {
QUICHE_DCHECK(!supports_multiple_packet_number_spaces_);
return received_packet_managers_[0].ack_frame();
}
const QuicAckFrame& UberReceivedPacketManager::GetAckFrame(
PacketNumberSpace packet_number_space) const {
QUICHE_DCHECK(supports_multiple_packet_number_spaces_);
return received_packet_managers_[packet_number_space].ack_frame();
}
void UberReceivedPacketManager::set_max_ack_ranges(size_t max_ack_ranges) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.set_max_ack_ranges(max_ack_ranges);
}
}
void UberReceivedPacketManager::set_save_timestamps(bool save_timestamps) {
for (auto& received_packet_manager : received_packet_managers_) {
received_packet_manager.set_save_timestamps(
save_timestamps, supports_multiple_packet_number_spaces_);
}
}
void UberReceivedPacketManager::OnAckFrequencyFrame(
const QuicAckFrequencyFrame& frame) {
if (!supports_multiple_packet_number_spaces_) {
QUIC_BUG(quic_bug_10495_3)
<< "Received AckFrequencyFrame when multiple packet number spaces "
"is not supported";
return;
}
received_packet_managers_[APPLICATION_DATA].OnAckFrequencyFrame(frame);
}
} | #include "quiche/quic/core/uber_received_packet_manager.h"
#include <algorithm>
#include <memory>
#include <utility>
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
namespace quic {
namespace test {
class UberReceivedPacketManagerPeer {
public:
static void SetAckDecimationDelay(UberReceivedPacketManager* manager,
float ack_decimation_delay) {
for (auto& received_packet_manager : manager->received_packet_managers_) {
received_packet_manager.ack_decimation_delay_ = ack_decimation_delay;
}
}
};
namespace {
const bool kInstigateAck = true;
const QuicTime::Delta kMinRttMs = QuicTime::Delta::FromMilliseconds(40);
const QuicTime::Delta kDelayedAckTime =
QuicTime::Delta::FromMilliseconds(GetDefaultDelayedAckTimeMs());
EncryptionLevel GetEncryptionLevel(PacketNumberSpace packet_number_space) {
switch (packet_number_space) {
case INITIAL_DATA:
return ENCRYPTION_INITIAL;
case HANDSHAKE_DATA:
return ENCRYPTION_HANDSHAKE;
case APPLICATION_DATA:
return ENCRYPTION_FORWARD_SECURE;
default:
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
}
class UberReceivedPacketManagerTest : public QuicTest {
protected:
UberReceivedPacketManagerTest() {
manager_ = std::make_unique<UberReceivedPacketManager>(&stats_);
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
rtt_stats_.UpdateRtt(kMinRttMs, QuicTime::Delta::Zero(), QuicTime::Zero());
manager_->set_save_timestamps(true);
}
void RecordPacketReceipt(uint64_t packet_number) {
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, packet_number);
}
void RecordPacketReceipt(uint64_t packet_number, QuicTime receipt_time) {
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, packet_number, receipt_time);
}
void RecordPacketReceipt(EncryptionLevel decrypted_packet_level,
uint64_t packet_number) {
RecordPacketReceipt(decrypted_packet_level, packet_number,
QuicTime::Zero());
}
void RecordPacketReceipt(EncryptionLevel decrypted_packet_level,
uint64_t packet_number, QuicTime receipt_time) {
QuicPacketHeader header;
header.packet_number = QuicPacketNumber(packet_number);
manager_->RecordPacketReceived(decrypted_packet_level, header, receipt_time,
ECN_NOT_ECT);
}
bool HasPendingAck() {
if (!manager_->supports_multiple_packet_number_spaces()) {
return manager_->GetAckTimeout(APPLICATION_DATA).IsInitialized();
}
return manager_->GetEarliestAckTimeout().IsInitialized();
}
void MaybeUpdateAckTimeout(bool should_last_packet_instigate_acks,
uint64_t last_received_packet_number) {
MaybeUpdateAckTimeout(should_last_packet_instigate_acks,
ENCRYPTION_FORWARD_SECURE,
last_received_packet_number);
}
void MaybeUpdateAckTimeout(bool should_last_packet_instigate_acks,
EncryptionLevel decrypted_packet_level,
uint64_t last_received_packet_number) {
manager_->MaybeUpdateAckTimeout(
should_last_packet_instigate_acks, decrypted_packet_level,
QuicPacketNumber(last_received_packet_number), clock_.ApproximateNow(),
clock_.ApproximateNow(), &rtt_stats_);
}
void CheckAckTimeout(QuicTime time) {
QUICHE_DCHECK(HasPendingAck());
if (!manager_->supports_multiple_packet_number_spaces()) {
QUICHE_DCHECK(manager_->GetAckTimeout(APPLICATION_DATA) == time);
if (time <= clock_.ApproximateNow()) {
manager_->ResetAckStates(ENCRYPTION_FORWARD_SECURE);
QUICHE_DCHECK(!HasPendingAck());
}
return;
}
QUICHE_DCHECK(manager_->GetEarliestAckTimeout() == time);
for (int8_t i = INITIAL_DATA; i < NUM_PACKET_NUMBER_SPACES; ++i) {
const QuicTime ack_timeout =
manager_->GetAckTimeout(static_cast<PacketNumberSpace>(i));
if (!ack_timeout.IsInitialized() ||
ack_timeout > clock_.ApproximateNow()) {
continue;
}
manager_->ResetAckStates(
GetEncryptionLevel(static_cast<PacketNumberSpace>(i)));
}
}
MockClock clock_;
RttStats rtt_stats_;
QuicConnectionStats stats_;
std::unique_ptr<UberReceivedPacketManager> manager_;
};
TEST_F(UberReceivedPacketManagerTest, DontWaitForPacketsBefore) {
EXPECT_TRUE(manager_->IsAckFrameEmpty(APPLICATION_DATA));
RecordPacketReceipt(2);
EXPECT_FALSE(manager_->IsAckFrameEmpty(APPLICATION_DATA));
RecordPacketReceipt(7);
EXPECT_TRUE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(3u)));
EXPECT_TRUE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(6u)));
manager_->DontWaitForPacketsBefore(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(4));
EXPECT_FALSE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(3u)));
EXPECT_TRUE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(6u)));
}
TEST_F(UberReceivedPacketManagerTest, GetUpdatedAckFrame) {
QuicTime two_ms = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
EXPECT_FALSE(manager_->IsAckFrameUpdated());
RecordPacketReceipt(2, two_ms);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
QuicFrame ack =
manager_->GetUpdatedAckFrame(APPLICATION_DATA, QuicTime::Zero());
manager_->ResetAckStates(ENCRYPTION_FORWARD_SECURE);
EXPECT_FALSE(manager_->IsAckFrameUpdated());
EXPECT_EQ(QuicTime::Delta::Zero(), ack.ack_frame->ack_delay_time);
EXPECT_EQ(1u, ack.ack_frame->received_packet_times.size());
QuicTime four_ms = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(4);
ack = manager_->GetUpdatedAckFrame(APPLICATION_DATA, four_ms);
manager_->ResetAckStates(ENCRYPTION_FORWARD_SECURE);
EXPECT_FALSE(manager_->IsAckFrameUpdated());
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(2),
ack.ack_frame->ack_delay_time);
EXPECT_EQ(1u, ack.ack_frame->received_packet_times.size());
RecordPacketReceipt(999, two_ms);
RecordPacketReceipt(4, two_ms);
RecordPacketReceipt(1000, two_ms);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
ack = manager_->GetUpdatedAckFrame(APPLICATION_DATA, two_ms);
manager_->ResetAckStates(ENCRYPTION_FORWARD_SECURE);
EXPECT_FALSE(manager_->IsAckFrameUpdated());
EXPECT_EQ(2u, ack.ack_frame->received_packet_times.size());
}
TEST_F(UberReceivedPacketManagerTest, UpdateReceivedConnectionStats) {
EXPECT_FALSE(manager_->IsAckFrameUpdated());
RecordPacketReceipt(1);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
RecordPacketReceipt(6);
RecordPacketReceipt(2,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1));
EXPECT_EQ(4u, stats_.max_sequence_reordering);
EXPECT_EQ(1000, stats_.max_time_reordering_us);
EXPECT_EQ(1u, stats_.packets_reordered);
}
TEST_F(UberReceivedPacketManagerTest, LimitAckRanges) {
manager_->set_max_ack_ranges(10);
EXPECT_FALSE(manager_->IsAckFrameUpdated());
for (int i = 0; i < 100; ++i) {
RecordPacketReceipt(1 + 2 * i);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
manager_->GetUpdatedAckFrame(APPLICATION_DATA, QuicTime::Zero());
EXPECT_GE(10u, manager_->ack_frame().packets.NumIntervals());
EXPECT_EQ(QuicPacketNumber(1u + 2 * i),
manager_->ack_frame().packets.Max());
for (int j = 0; j < std::min(10, i + 1); ++j) {
ASSERT_GE(i, j);
EXPECT_TRUE(manager_->ack_frame().packets.Contains(
QuicPacketNumber(1 + (i - j) * 2)));
if (i > j) {
EXPECT_FALSE(manager_->ack_frame().packets.Contains(
QuicPacketNumber((i - j) * 2)));
}
}
}
}
TEST_F(UberReceivedPacketManagerTest, IgnoreOutOfOrderTimestamps) {
EXPECT_FALSE(manager_->IsAckFrameUpdated());
RecordPacketReceipt(1, QuicTime::Zero());
EXPECT_TRUE(manager_->IsAckFrameUpdated());
EXPECT_EQ(1u, manager_->ack_frame().received_packet_times.size());
RecordPacketReceipt(2,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1));
EXPECT_EQ(2u, manager_->ack_frame().received_packet_times.size());
RecordPacketReceipt(3, QuicTime::Zero());
EXPECT_EQ(2u, manager_->ack_frame().received_packet_times.size());
}
TEST_F(UberReceivedPacketManagerTest, OutOfOrderReceiptCausesAckSent) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 2);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 1);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 4);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
TEST_F(UberReceivedPacketManagerTest, OutOfOrderAckReceiptCausesNoAck) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 2);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 1);
EXPECT_FALSE(HasPendingAck());
}
TEST_F(UberReceivedPacketManagerTest, AckReceiptCausesAckSend) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 1);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 2);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
clock_.AdvanceTime(kDelayedAckTime);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 4);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 5);
EXPECT_FALSE(HasPendingAck());
}
TEST_F(UberReceivedPacketManagerTest, AckSentEveryNthPacket) {
EXPECT_FALSE(HasPendingAck());
manager_->set_ack_frequency(3);
for (size_t i = 1; i <= 39; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 3 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
}
TEST_F(UberReceivedPacketManagerTest, AckDecimationReducesAcks) {
EXPECT_FALSE(HasPendingAck());
manager_->set_min_received_before_ack_decimation(10);
for (size_t i = 1; i <= 29; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i <= 10) {
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
continue;
}
if (i == 20) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kMinRttMs * 0.25);
}
}
RecordPacketReceipt(30, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 30);
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(UberReceivedPacketManagerTest, SendDelayedAckDecimation) {
EXPECT_FALSE(HasPendingAck());
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.25;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (uint64_t i = 1; i < 10; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(UberReceivedPacketManagerTest,
SendDelayedAckDecimationUnlimitedAggregation) {
EXPECT_FALSE(HasPendingAck());
QuicConfig config;
QuicTagVector connection_options;
connection_options.push_back(kAKDU);
config.SetConnectionOptionsToSend(connection_options);
manager_->SetFromConfig(config, Perspective::IS_CLIENT);
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.25;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (int i = 1; i <= 18; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(ack_time);
}
TEST_F(UberReceivedPacketManagerTest, SendDelayedAckDecimationEighthRtt) {
EXPECT_FALSE(HasPendingAck());
UberReceivedPacketManagerPeer::SetAckDecimationDelay(manager_.get(), 0.125);
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.125;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (uint64_t i = 1; i < 10; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(UberReceivedPacketManagerTest,
DontWaitForPacketsBeforeMultiplePacketNumberSpaces) {
manager_->EnableMultiplePacketNumberSpacesSupport(Perspective::IS_CLIENT);
EXPECT_FALSE(
manager_->GetLargestObserved(ENCRYPTION_HANDSHAKE).IsInitialized());
EXPECT_FALSE(
manager_->GetLargestObserved(ENCRYPTION_FORWARD_SECURE).IsInitialized());
RecordPacketReceipt(ENCRYPTION_HANDSHAKE, 2);
RecordPacketReceipt(ENCRYPTION_HANDSHAKE, 4);
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, 3);
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, 7);
EXPECT_EQ(QuicPacketNumber(4),
manager_->GetLargestObserved(ENCRYPTION_HANDSHAKE));
EXPECT_EQ(QuicPacketNumber(7),
manager_->GetLargestObserved(ENCRYPTION_FORWARD_SECURE));
EXPECT_TRUE(
manager_->IsAwaitingPacket(ENCRYPTION_HANDSHAKE, QuicPacketNumber(3)));
EXPECT_FALSE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(3)));
EXPECT_TRUE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(4)));
manager_->DontWaitForPacketsBefore(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(5));
EXPECT_TRUE(
manager_->IsAwaitingPacket(ENCRYPTION_HANDSHAKE, QuicPacketNumber(3)));
EXPECT_FALSE(manager_->IsAwaitingPacket(ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(4)));
}
TEST_F(UberReceivedPacketManagerTest, AckSendingDifferentPacketNumberSpaces) {
manager_->EnableMultiplePacketNumberSpacesSupport(Perspective::IS_SERVER);
EXPECT_FALSE(HasPendingAck());
EXPECT_FALSE(manager_->IsAckFrameUpdated());
RecordPacketReceipt(ENCRYPTION_INITIAL, 3);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_INITIAL, 3);
EXPECT_TRUE(HasPendingAck());
CheckAckTimeout(clock_.ApproximateNow() +
QuicTime::Delta::FromMilliseconds(25));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(25));
CheckAckTimeout(clock_.ApproximateNow());
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(ENCRYPTION_INITIAL, 4);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_INITIAL, 4);
EXPECT_TRUE(HasPendingAck());
CheckAckTimeout(clock_.ApproximateNow() +
QuicTime::Delta::FromMilliseconds(1));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
CheckAckTimeout(clock_.ApproximateNow());
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(ENCRYPTION_HANDSHAKE, 3);
EXPECT_TRUE(manager_->IsAckFrameUpdated());
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_HANDSHAKE, 3);
EXPECT_TRUE(HasPendingAck());
CheckAckTimeout(clock_.ApproximateNow() +
QuicTime::Delta::FromMilliseconds(1));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
CheckAckTimeout(clock_.ApproximateNow());
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, 3);
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_FORWARD_SECURE, 3);
EXPECT_TRUE(HasPendingAck());
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, 2);
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_FORWARD_SECURE, 2);
CheckAckTimeout(clock_.ApproximateNow());
EXPECT_FALSE(HasPendingAck());
}
TEST_F(UberReceivedPacketManagerTest,
AckTimeoutForPreviouslyUndecryptablePackets) {
manager_->EnableMultiplePacketNumberSpacesSupport(Perspective::IS_SERVER);
EXPECT_FALSE(HasPendingAck());
EXPECT_FALSE(manager_->IsAckFrameUpdated());
const QuicTime packet_receipt_time4 = clock_.ApproximateNow();
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(10));
RecordPacketReceipt(ENCRYPTION_HANDSHAKE, 5);
MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_HANDSHAKE, 5);
EXPECT_TRUE(HasPendingAck());
RecordPacketReceipt(ENCRYPTION_FORWARD_SECURE, 4);
manager_->MaybeUpdateAckTimeout(kInstigateAck, ENCRYPTION_FORWARD_SECURE,
QuicPacketNumber(4), packet_receipt_time4,
clock_.ApproximateNow(), &rtt_stats_);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
CheckAckTimeout(clock_.ApproximateNow());
EXPECT_TRUE(HasPendingAck());
CheckAckTimeout(clock_.ApproximateNow() -
QuicTime::Delta::FromMilliseconds(11) + kDelayedAckTime);
}
}
}
} |
264 | cpp | google/quiche | quic_linux_socket_utils | quiche/quic/core/quic_linux_socket_utils.cc | quiche/quic/core/quic_linux_socket_utils_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_LINUX_SOCKET_UTILS_H_
#define QUICHE_QUIC_CORE_QUIC_LINUX_SOCKET_UTILS_H_
#include <errno.h>
#include <stddef.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <deque>
#include <functional>
#include <iterator>
#include <memory>
#include <type_traits>
#include <utility>
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/common/quiche_callbacks.h"
#ifndef SOL_UDP
#define SOL_UDP 17
#endif
#ifndef UDP_SEGMENT
#define UDP_SEGMENT 103
#endif
#ifndef UDP_MAX_SEGMENTS
#define UDP_MAX_SEGMENTS (1 << 6UL)
#endif
#ifndef SO_TXTIME
#define SO_TXTIME 61
#endif
namespace quic {
inline constexpr int kCmsgSpaceForIpv4 = CMSG_SPACE(sizeof(in_pktinfo));
inline constexpr int kCmsgSpaceForIpv6 = CMSG_SPACE(sizeof(in6_pktinfo));
inline constexpr int kCmsgSpaceForIp = (kCmsgSpaceForIpv4 < kCmsgSpaceForIpv6)
? kCmsgSpaceForIpv6
: kCmsgSpaceForIpv4;
inline constexpr int kCmsgSpaceForSegmentSize = CMSG_SPACE(sizeof(uint16_t));
inline constexpr int kCmsgSpaceForTxTime = CMSG_SPACE(sizeof(uint64_t));
inline constexpr int kCmsgSpaceForTTL = CMSG_SPACE(sizeof(int));
inline constexpr int kCmsgSpaceForTOS = CMSG_SPACE(sizeof(int));
class QUICHE_EXPORT QuicMsgHdr {
public:
QuicMsgHdr(iovec* iov, size_t iov_len, char* cbuf, size_t cbuf_size);
void SetPeerAddress(const QuicSocketAddress& peer_address);
void SetIpInNextCmsg(const QuicIpAddress& self_address);
template <typename DataType>
DataType* GetNextCmsgData(int cmsg_level, int cmsg_type) {
return reinterpret_cast<DataType*>(
GetNextCmsgDataInternal(cmsg_level, cmsg_type, sizeof(DataType)));
}
const msghdr* hdr() const { return &hdr_; }
protected:
void* GetNextCmsgDataInternal(int cmsg_level, int cmsg_type,
size_t data_size);
msghdr hdr_;
sockaddr_storage raw_peer_address_;
char* cbuf_;
const size_t cbuf_size_;
cmsghdr* cmsg_;
};
struct QUICHE_EXPORT BufferedWrite {
BufferedWrite(const char* buffer, size_t buf_len,
const QuicIpAddress& self_address,
const QuicSocketAddress& peer_address)
: BufferedWrite(buffer, buf_len, self_address, peer_address,
std::unique_ptr<PerPacketOptions>(),
QuicPacketWriterParams(), 0) {}
BufferedWrite(const char* buffer, size_t buf_len,
const QuicIpAddress& self_address,
const QuicSocketAddress& peer_address,
std::unique_ptr<PerPacketOptions> options,
const QuicPacketWriterParams& params, uint64_t release_time)
: buffer(buffer),
buf_len(buf_len),
self_address(self_address),
peer_address(peer_address),
options(std::move(options)),
params(params),
release_time(release_time) {}
const char* buffer;
size_t buf_len;
QuicIpAddress self_address;
QuicSocketAddress peer_address;
std::unique_ptr<PerPacketOptions> options;
QuicPacketWriterParams params;
uint64_t release_time;
};
class QUICHE_EXPORT QuicMMsgHdr {
public:
using ControlBufferInitializer = quiche::UnretainedCallback<void(
QuicMMsgHdr* mhdr, int i, const BufferedWrite& buffered_write)>;
template <typename IteratorT>
QuicMMsgHdr(
const IteratorT& first, const IteratorT& last, size_t cbuf_size,
ControlBufferInitializer cbuf_initializer =
+[](quic::QuicMMsgHdr*, int, const quic::BufferedWrite&) {})
: num_msgs_(std::distance(first, last)), cbuf_size_(cbuf_size) {
static_assert(
std::is_same<typename std::iterator_traits<IteratorT>::value_type,
BufferedWrite>::value,
"Must iterate over a collection of BufferedWrite.");
QUICHE_DCHECK_LE(0, num_msgs_);
if (num_msgs_ == 0) {
return;
}
storage_.reset(new char[StorageSize()]);
memset(&storage_[0], 0, StorageSize());
int i = -1;
for (auto it = first; it != last; ++it) {
++i;
InitOneHeader(i, *it);
cbuf_initializer(this, i, *it);
}
}
void SetIpInNextCmsg(int i, const QuicIpAddress& self_address);
template <typename DataType>
DataType* GetNextCmsgData(int i, int cmsg_level, int cmsg_type) {
return reinterpret_cast<DataType*>(
GetNextCmsgDataInternal(i, cmsg_level, cmsg_type, sizeof(DataType)));
}
mmsghdr* mhdr() { return GetMMsgHdr(0); }
int num_msgs() const { return num_msgs_; }
int num_bytes_sent(int num_packets_sent);
protected:
void InitOneHeader(int i, const BufferedWrite& buffered_write);
void* GetNextCmsgDataInternal(int i, int cmsg_level, int cmsg_type,
size_t data_size);
size_t StorageSize() const {
return num_msgs_ *
(sizeof(mmsghdr) + sizeof(iovec) + sizeof(sockaddr_storage) +
sizeof(cmsghdr*) + cbuf_size_);
}
mmsghdr* GetMMsgHdr(int i) {
auto* first = reinterpret_cast<mmsghdr*>(&storage_[0]);
return &first[i];
}
iovec* GetIov(int i) {
auto* first = reinterpret_cast<iovec*>(GetMMsgHdr(num_msgs_));
return &first[i];
}
sockaddr_storage* GetPeerAddressStorage(int i) {
auto* first = reinterpret_cast<sockaddr_storage*>(GetIov(num_msgs_));
return &first[i];
}
cmsghdr** GetCmsgHdr(int i) {
auto* first = reinterpret_cast<cmsghdr**>(GetPeerAddressStorage(num_msgs_));
return &first[i];
}
char* GetCbuf(int i) {
auto* first = reinterpret_cast<char*>(GetCmsgHdr(num_msgs_));
return &first[i * cbuf_size_];
}
const int num_msgs_;
const size_t cbuf_size_;
std::unique_ptr<char[]> storage_;
};
class QUICHE_EXPORT QuicLinuxSocketUtils {
public:
static int GetUDPSegmentSize(int fd);
static bool EnableReleaseTime(int fd, clockid_t clockid);
static bool GetTtlFromMsghdr(struct msghdr* hdr, int* ttl);
static void SetIpInfoInCmsgData(const QuicIpAddress& self_address,
void* cmsg_data);
static size_t SetIpInfoInCmsg(const QuicIpAddress& self_address,
cmsghdr* cmsg);
static WriteResult WritePacket(int fd, const QuicMsgHdr& hdr);
static WriteResult WriteMultiplePackets(int fd, QuicMMsgHdr* mhdr,
int* num_packets_sent);
};
}
#endif
#include "quiche/quic/core/quic_linux_socket_utils.h"
#include <linux/net_tstamp.h>
#include <netinet/in.h>
#include <cstddef>
#include <cstdint>
#include <string>
#include "quiche/quic/core/quic_syscall_wrapper.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
QuicMsgHdr::QuicMsgHdr(iovec* iov, size_t iov_len, char* cbuf, size_t cbuf_size)
: cbuf_(cbuf), cbuf_size_(cbuf_size), cmsg_(nullptr) {
hdr_.msg_name = nullptr;
hdr_.msg_namelen = 0;
hdr_.msg_iov = iov;
hdr_.msg_iovlen = iov_len;
hdr_.msg_flags = 0;
hdr_.msg_control = nullptr;
hdr_.msg_controllen = 0;
}
void QuicMsgHdr::SetPeerAddress(const QuicSocketAddress& peer_address) {
QUICHE_DCHECK(peer_address.IsInitialized());
raw_peer_address_ = peer_address.generic_address();
hdr_.msg_name = &raw_peer_address_;
hdr_.msg_namelen = raw_peer_address_.ss_family == AF_INET
? sizeof(sockaddr_in)
: sizeof(sockaddr_in6);
}
void QuicMsgHdr::SetIpInNextCmsg(const QuicIpAddress& self_address) {
if (!self_address.IsInitialized()) {
return;
}
if (self_address.IsIPv4()) {
QuicLinuxSocketUtils::SetIpInfoInCmsgData(
self_address, GetNextCmsgData<in_pktinfo>(IPPROTO_IP, IP_PKTINFO));
} else {
QuicLinuxSocketUtils::SetIpInfoInCmsgData(
self_address, GetNextCmsgData<in6_pktinfo>(IPPROTO_IPV6, IPV6_PKTINFO));
}
}
void* QuicMsgHdr::GetNextCmsgDataInternal(int cmsg_level, int cmsg_type,
size_t data_size) {
hdr_.msg_controllen += CMSG_SPACE(data_size);
QUICHE_DCHECK_LE(hdr_.msg_controllen, cbuf_size_);
if (cmsg_ == nullptr) {
QUICHE_DCHECK_EQ(nullptr, hdr_.msg_control);
memset(cbuf_, 0, cbuf_size_);
hdr_.msg_control = cbuf_;
cmsg_ = CMSG_FIRSTHDR(&hdr_);
} else {
QUICHE_DCHECK_NE(nullptr, hdr_.msg_control);
cmsg_ = CMSG_NXTHDR(&hdr_, cmsg_);
}
QUICHE_DCHECK_NE(nullptr, cmsg_) << "Insufficient control buffer space";
cmsg_->cmsg_len = CMSG_LEN(data_size);
cmsg_->cmsg_level = cmsg_level;
cmsg_->cmsg_type = cmsg_type;
return CMSG_DATA(cmsg_);
}
void QuicMMsgHdr::InitOneHeader(int i, const BufferedWrite& buffered_write) {
mmsghdr* mhdr = GetMMsgHdr(i);
msghdr* hdr = &mhdr->msg_hdr;
iovec* iov = GetIov(i);
iov->iov_base = const_cast<char*>(buffered_write.buffer);
iov->iov_len = buffered_write.buf_len;
hdr->msg_iov = iov;
hdr->msg_iovlen = 1;
hdr->msg_control = nullptr;
hdr->msg_controllen = 0;
QUICHE_DCHECK(buffered_write.peer_address.IsInitialized());
sockaddr_storage* peer_address_storage = GetPeerAddressStorage(i);
*peer_address_storage = buffered_write.peer_address.generic_address();
hdr->msg_name = peer_address_storage;
hdr->msg_namelen = peer_address_storage->ss_family == AF_INET
? sizeof(sockaddr_in)
: sizeof(sockaddr_in6);
}
void QuicMMsgHdr::SetIpInNextCmsg(int i, const QuicIpAddress& self_address) {
if (!self_address.IsInitialized()) {
return;
}
if (self_address.IsIPv4()) {
QuicLinuxSocketUtils::SetIpInfoInCmsgData(
self_address, GetNextCmsgData<in_pktinfo>(i, IPPROTO_IP, IP_PKTINFO));
} else {
QuicLinuxSocketUtils::SetIpInfoInCmsgData(
self_address,
GetNextCmsgData<in6_pktinfo>(i, IPPROTO_IPV6, IPV6_PKTINFO));
}
}
void* QuicMMsgHdr::GetNextCmsgDataInternal(int i, int cmsg_level, int cmsg_type,
size_t data_size) {
mmsghdr* mhdr = GetMMsgHdr(i);
msghdr* hdr = &mhdr->msg_hdr;
cmsghdr*& cmsg = *GetCmsgHdr(i);
hdr->msg_controllen += CMSG_SPACE(data_size);
QUICHE_DCHECK_LE(hdr->msg_controllen, cbuf_size_);
if (cmsg == nullptr) {
QUICHE_DCHECK_EQ(nullptr, hdr->msg_control);
hdr->msg_control = GetCbuf(i);
cmsg = CMSG_FIRSTHDR(hdr);
} else {
QUICHE_DCHECK_NE(nullptr, hdr->msg_control);
cmsg = CMSG_NXTHDR(hdr, cmsg);
}
QUICHE_DCHECK_NE(nullptr, cmsg) << "Insufficient control buffer space";
cmsg->cmsg_len = CMSG_LEN(data_size);
cmsg->cmsg_level = cmsg_level;
cmsg->cmsg_type = cmsg_type;
return CMSG_DATA(cmsg);
}
int QuicMMsgHdr::num_bytes_sent(int num_packets_sent) {
QUICHE_DCHECK_LE(0, num_packets_sent);
QUICHE_DCHECK_LE(num_packets_sent, num_msgs_);
int bytes_sent = 0;
iovec* iov = GetIov(0);
for (int i = 0; i < num_packets_sent; ++i) {
bytes_sent += iov[i].iov_len;
}
return bytes_sent;
}
int QuicLinuxSocketUtils::GetUDPSegmentSize(int fd) {
int optval;
socklen_t optlen = sizeof(optval);
int rc = getsockopt(fd, SOL_UDP, UDP_SEGMENT, &optval, &optlen);
if (rc < 0) {
QUIC_LOG_EVERY_N_SEC(INFO, 10)
<< "getsockopt(UDP_SEGMENT) failed: " << strerror(errno);
return -1;
}
QUIC_LOG_EVERY_N_SEC(INFO, 10)
<< "getsockopt(UDP_SEGMENT) returned segment size: " << optval;
return optval;
}
bool QuicLinuxSocketUtils::EnableReleaseTime(int fd, clockid_t clockid) {
struct LinuxSockTxTime {
clockid_t clockid;
uint32_t flags;
};
LinuxSockTxTime so_txtime_val{clockid, 0};
if (setsockopt(fd, SOL_SOCKET, SO_TXTIME, &so_txtime_val,
sizeof(so_txtime_val)) != 0) {
QUIC_LOG_EVERY_N_SEC(INFO, 10)
<< "setsockopt(SOL_SOCKET,SO_TXTIME) failed: " << strerror(errno);
return false;
}
return true;
}
bool QuicLinuxSocketUtils::GetTtlFromMsghdr(struct msghdr* hdr, int* ttl) {
if (hdr->msg_controllen > 0) {
struct cmsghdr* cmsg;
for (cmsg = CMSG_FIRSTHDR(hdr); cmsg != nullptr;
cmsg = CMSG_NXTHDR(hdr, cmsg)) {
if ((cmsg->cmsg_level == IPPROTO_IP && cmsg->cmsg_type == IP_TTL) ||
(cmsg->cmsg_level == IPPROTO_IPV6 &&
cmsg->cmsg_type == IPV6_HOPLIMIT)) {
*ttl = *(reinterpret_cast<int*>(CMSG_DATA(cmsg)));
return true;
}
}
}
return false;
}
void QuicLinuxSocketUtils::SetIpInfoInCmsgData(
const QuicIpAddress& self_address, void* cmsg_data) {
QUICHE_DCHECK(self_address.IsInitialized());
const std::string& address_str = self_address.ToPackedString();
if (self_address.IsIPv4()) {
in_pktinfo* pktinfo = static_cast<in_pktinfo*>(cmsg_data);
pktinfo->ipi_ifindex = 0;
memcpy(&pktinfo->ipi_spec_dst, address_str.c_str(), address_str.length());
} else if (self_address.IsIPv6()) {
in6_pktinfo* pktinfo = static_cast<in6_pktinfo*>(cmsg_data);
memcpy(&pktinfo->ipi6_addr, address_str.c_str(), address_str.length());
} else {
QUIC_BUG(quic_bug_10598_1) << "Unrecognized IPAddress";
}
}
size_t QuicLinuxSocketUtils::SetIpInfoInCmsg(const QuicIpAddress& self_address,
cmsghdr* cmsg) {
std::string address_string;
if (self_address.IsIPv4()) {
cmsg->cmsg_len = CMSG_LEN(sizeof(in_pktinfo));
cmsg->cmsg_level = IPPROTO_IP;
cmsg->cmsg_type = IP_PKTINFO;
in_pktinfo* pktinfo = reinterpret_cast<in_pktinfo*>(CMSG_DATA(cmsg));
memset(pktinfo, 0, sizeof(in_pktinfo));
pktinfo->ipi_ifindex = 0;
address_string = self_address.ToPackedString();
memcpy(&pktinfo->ipi_spec_dst, address_string.c_str(),
address_string.length());
return sizeof(in_pktinfo);
} else if (self_address.IsIPv6()) {
cmsg->cmsg_len = CMSG_LEN(sizeof(in6_pktinfo));
cmsg->cmsg_level = IPPROTO_IPV6;
cmsg->cmsg_type = IPV6_PKTINFO;
in6_pktinfo* pktinfo = reinterpret_cast<in6_pktinfo*>(CMSG_DATA(cmsg));
memset(pktinfo, 0, sizeof(in6_pktinfo));
address_string = self_address.ToPackedString();
memcpy(&pktinfo->ipi6_addr, address_string.c_str(),
address_string.length());
return sizeof(in6_pktinfo);
} else {
QUIC_BUG(quic_bug_10598_2) << "Unrecognized IPAddress";
return 0;
}
}
WriteResult QuicLinuxSocketUtils::WritePacket(int fd, const QuicMsgHdr& hdr) {
int rc;
do {
rc = GetGlobalSyscallWrapper()->Sendmsg(fd, hdr.hdr(), 0);
} while (rc < 0 && errno == EINTR);
if (rc >= 0) {
return WriteResult(WRITE_STATUS_OK, rc);
}
return WriteResult((errno == EAGAIN || errno == EWOULDBLOCK)
? WRITE_STATUS_BLOCKED
: WRITE_STATUS_ERROR,
errno);
}
WriteResult QuicLinuxSocketUtils::WriteMultiplePackets(int fd,
QuicMMsgHdr* mhdr,
int* num_packets_sent) {
*num_packets_sent = 0;
if (mhdr->num_msgs() <= 0) {
return WriteResult(WRITE_STATUS_ERROR, EINVAL);
}
int rc;
do {
rc = GetGlobalSyscallWrapper()->Sendmmsg(fd, mhdr->mhdr(), mhdr->num_msgs(),
0);
} while (rc < 0 && errno == EINTR);
if (rc > 0) {
*num_packets_sent = rc;
return WriteResult(WRITE_STATUS_OK, mhdr->num_bytes_sent(rc));
} else if (rc == 0) {
QUIC_BUG(quic_bug_10598_3)
<< "sendmmsg returned 0, returning WRITE_STATUS_ERROR. errno: "
<< errno;
errno = EIO;
}
return WriteResult((errno == EAGAIN || errno == EWOULDBLOCK)
? WRITE_STATUS_BLOCKED
: WRITE_STATUS_ERROR,
errno);
}
} | #include "quiche/quic/core/quic_linux_socket_utils.h"
#include <netinet/in.h>
#include <stdint.h>
#include <cstddef>
#include <sstream>
#include <string>
#include <vector>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_mock_syscall_wrapper.h"
#include "quiche/common/quiche_circular_deque.h"
using testing::_;
using testing::InSequence;
using testing::Invoke;
namespace quic {
namespace test {
namespace {
class QuicLinuxSocketUtilsTest : public QuicTest {
protected:
WriteResult TestWriteMultiplePackets(
int fd,
const quiche::QuicheCircularDeque<BufferedWrite>::const_iterator& first,
const quiche::QuicheCircularDeque<BufferedWrite>::const_iterator& last,
int* num_packets_sent) {
QuicMMsgHdr mhdr(
first, last, kCmsgSpaceForIp,
[](QuicMMsgHdr* mhdr, int i, const BufferedWrite& buffered_write) {
mhdr->SetIpInNextCmsg(i, buffered_write.self_address);
});
WriteResult res =
QuicLinuxSocketUtils::WriteMultiplePackets(fd, &mhdr, num_packets_sent);
return res;
}
MockQuicSyscallWrapper mock_syscalls_;
ScopedGlobalSyscallWrapperOverride syscall_override_{&mock_syscalls_};
};
void CheckIpAndTtlInCbuf(msghdr* hdr, const void* cbuf,
const QuicIpAddress& self_addr, int ttl) {
const bool is_ipv4 = self_addr.IsIPv4();
const size_t ip_cmsg_space = is_ipv4 ? kCmsgSpaceForIpv4 : kCmsgSpaceForIpv6;
EXPECT_EQ(cbuf, hdr->msg_control);
EXPECT_EQ(ip_cmsg_space + CMSG_SPACE(sizeof(uint16_t)), hdr->msg_controllen);
cmsghdr* cmsg = CMSG_FIRSTHDR(hdr);
EXPECT_EQ(cmsg->cmsg_len, is_ipv4 ? CMSG_LEN(sizeof(in_pktinfo))
: CMSG_LEN(sizeof(in6_pktinfo)));
EXPECT_EQ(cmsg->cmsg_level, is_ipv4 ? IPPROTO_IP : IPPROTO_IPV6);
EXPECT_EQ(cmsg->cmsg_type, is_ipv4 ? IP_PKTINFO : IPV6_PKTINFO);
const std::string& self_addr_str = self_addr.ToPackedString();
if (is_ipv4) {
in_pktinfo* pktinfo = reinterpret_cast<in_pktinfo*>(CMSG_DATA(cmsg));
EXPECT_EQ(0, memcmp(&pktinfo->ipi_spec_dst, self_addr_str.c_str(),
self_addr_str.length()));
} else {
in6_pktinfo* pktinfo = reinterpret_cast<in6_pktinfo*>(CMSG_DATA(cmsg));
EXPECT_EQ(0, memcmp(&pktinfo->ipi6_addr, self_addr_str.c_str(),
self_addr_str.length()));
}
cmsg = CMSG_NXTHDR(hdr, cmsg);
EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(int)));
EXPECT_EQ(cmsg->cmsg_level, is_ipv4 ? IPPROTO_IP : IPPROTO_IPV6);
EXPECT_EQ(cmsg->cmsg_type, is_ipv4 ? IP_TTL : IPV6_HOPLIMIT);
EXPECT_EQ(ttl, *reinterpret_cast<int*>(CMSG_DATA(cmsg)));
EXPECT_EQ(nullptr, CMSG_NXTHDR(hdr, cmsg));
}
void CheckMsghdrWithoutCbuf(const msghdr* hdr, const void* buffer,
size_t buf_len,
const QuicSocketAddress& peer_addr) {
EXPECT_EQ(
peer_addr.host().IsIPv4() ? sizeof(sockaddr_in) : sizeof(sockaddr_in6),
hdr->msg_namelen);
sockaddr_storage peer_generic_addr = peer_addr.generic_address();
EXPECT_EQ(0, memcmp(hdr->msg_name, &peer_generic_addr, hdr->msg_namelen));
EXPECT_EQ(1u, hdr->msg_iovlen);
EXPECT_EQ(buffer, hdr->msg_iov->iov_base);
EXPECT_EQ(buf_len, hdr->msg_iov->iov_len);
EXPECT_EQ(0, hdr->msg_flags);
EXPECT_EQ(nullptr, hdr->msg_control);
EXPECT_EQ(0u, hdr->msg_controllen);
}
void CheckIpAndGsoSizeInCbuf(msghdr* hdr, const void* cbuf,
const QuicIpAddress& self_addr,
uint16_t gso_size) {
const bool is_ipv4 = self_addr.IsIPv4();
const size_t ip_cmsg_space = is_ipv4 ? kCmsgSpaceForIpv4 : kCmsgSpaceForIpv6;
EXPECT_EQ(cbuf, hdr->msg_control);
EXPECT_EQ(ip_cmsg_space + CMSG_SPACE(sizeof(uint16_t)), hdr->msg_controllen);
cmsghdr* cmsg = CMSG_FIRSTHDR(hdr);
EXPECT_EQ(cmsg->cmsg_len, is_ipv4 ? CMSG_LEN(sizeof(in_pktinfo))
: CMSG_LEN(sizeof(in6_pktinfo)));
EXPECT_EQ(cmsg->cmsg_level, is_ipv4 ? IPPROTO_IP : IPPROTO_IPV6);
EXPECT_EQ(cmsg->cmsg_type, is_ipv4 ? IP_PKTINFO : IPV6_PKTINFO);
const std::string& self_addr_str = self_addr.ToPackedString();
if (is_ipv4) {
in_pktinfo* pktinfo = reinterpret_cast<in_pktinfo*>(CMSG_DATA(cmsg));
EXPECT_EQ(0, memcmp(&pktinfo->ipi_spec_dst, self_addr_str.c_str(),
self_addr_str.length()));
} else {
in6_pktinfo* pktinfo = reinterpret_cast<in6_pktinfo*>(CMSG_DATA(cmsg));
EXPECT_EQ(0, memcmp(&pktinfo->ipi6_addr, self_addr_str.c_str(),
self_addr_str.length()));
}
cmsg = CMSG_NXTHDR(hdr, cmsg);
EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(uint16_t)));
EXPECT_EQ(cmsg->cmsg_level, SOL_UDP);
EXPECT_EQ(cmsg->cmsg_type, UDP_SEGMENT);
EXPECT_EQ(gso_size, *reinterpret_cast<uint16_t*>(CMSG_DATA(cmsg)));
EXPECT_EQ(nullptr, CMSG_NXTHDR(hdr, cmsg));
}
TEST_F(QuicLinuxSocketUtilsTest, QuicMsgHdr) {
QuicSocketAddress peer_addr(QuicIpAddress::Loopback4(), 1234);
char packet_buf[1024];
iovec iov{packet_buf, sizeof(packet_buf)};
{
QuicMsgHdr quic_hdr(&iov, 1, nullptr, 0);
quic_hdr.SetPeerAddress(peer_addr);
CheckMsghdrWithoutCbuf(quic_hdr.hdr(), packet_buf, sizeof(packet_buf),
peer_addr);
}
for (bool is_ipv4 : {true, false}) {
QuicIpAddress self_addr =
is_ipv4 ? QuicIpAddress::Loopback4() : QuicIpAddress::Loopback6();
alignas(cmsghdr) char cbuf[kCmsgSpaceForIp + kCmsgSpaceForTTL];
QuicMsgHdr quic_hdr(&iov, 1, cbuf, sizeof(cbuf));
quic_hdr.SetPeerAddress(peer_addr);
msghdr* hdr = const_cast<msghdr*>(quic_hdr.hdr());
EXPECT_EQ(nullptr, hdr->msg_control);
EXPECT_EQ(0u, hdr->msg_controllen);
quic_hdr.SetIpInNextCmsg(self_addr);
EXPECT_EQ(cbuf, hdr->msg_control);
const size_t ip_cmsg_space =
is_ipv4 ? kCmsgSpaceForIpv4 : kCmsgSpaceForIpv6;
EXPECT_EQ(ip_cmsg_space, hdr->msg_controllen);
if (is_ipv4) {
*quic_hdr.GetNextCmsgData<int>(IPPROTO_IP, IP_TTL) = 32;
} else {
*quic_hdr.GetNextCmsgData<int>(IPPROTO_IPV6, IPV6_HOPLIMIT) = 32;
}
CheckIpAndTtlInCbuf(hdr, cbuf, self_addr, 32);
}
}
TEST_F(QuicLinuxSocketUtilsTest, QuicMMsgHdr) {
quiche::QuicheCircularDeque<BufferedWrite> buffered_writes;
char packet_buf1[1024];
char packet_buf2[512];
buffered_writes.emplace_back(
packet_buf1, sizeof(packet_buf1), QuicIpAddress::Loopback4(),
QuicSocketAddress(QuicIpAddress::Loopback4(), 4));
buffered_writes.emplace_back(
packet_buf2, sizeof(packet_buf2), QuicIpAddress::Loopback6(),
QuicSocketAddress(QuicIpAddress::Loopback6(), 6));
QuicMMsgHdr quic_mhdr_without_cbuf(buffered_writes.begin(),
buffered_writes.end(), 0);
for (size_t i = 0; i < buffered_writes.size(); ++i) {
const BufferedWrite& bw = buffered_writes[i];
CheckMsghdrWithoutCbuf(&quic_mhdr_without_cbuf.mhdr()[i].msg_hdr, bw.buffer,
bw.buf_len, bw.peer_address);
}
QuicMMsgHdr quic_mhdr_with_cbuf(
buffered_writes.begin(), buffered_writes.end(),
kCmsgSpaceForIp + kCmsgSpaceForSegmentSize,
[](QuicMMsgHdr* mhdr, int i, const BufferedWrite& buffered_write) {
mhdr->SetIpInNextCmsg(i, buffered_write.self_address);
*mhdr->GetNextCmsgData<uint16_t>(i, SOL_UDP, UDP_SEGMENT) = 1300;
});
for (size_t i = 0; i < buffered_writes.size(); ++i) {
const BufferedWrite& bw = buffered_writes[i];
msghdr* hdr = &quic_mhdr_with_cbuf.mhdr()[i].msg_hdr;
CheckIpAndGsoSizeInCbuf(hdr, hdr->msg_control, bw.self_address, 1300);
}
}
TEST_F(QuicLinuxSocketUtilsTest, WriteMultiplePackets_NoPacketsToSend) {
int num_packets_sent;
quiche::QuicheCircularDeque<BufferedWrite> buffered_writes;
EXPECT_CALL(mock_syscalls_, Sendmmsg(_, _, _, _)).Times(0);
EXPECT_EQ(WriteResult(WRITE_STATUS_ERROR, EINVAL),
TestWriteMultiplePackets(1, buffered_writes.begin(),
buffered_writes.end(), &num_packets_sent));
}
TEST_F(QuicLinuxSocketUtilsTest, WriteMultiplePackets_WriteBlocked) {
int num_packets_sent;
quiche::QuicheCircularDeque<BufferedWrite> buffered_writes;
buffered_writes.emplace_back(nullptr, 0, QuicIpAddress(),
QuicSocketAddress(QuicIpAddress::Any4(), 0));
EXPECT_CALL(mock_syscalls_, Sendmmsg(_, _, _, _))
.WillOnce(Invoke([](int , mmsghdr* ,
unsigned int , int ) {
errno = EWOULDBLOCK;
return -1;
}));
EXPECT_EQ(WriteResult(WRITE_STATUS_BLOCKED, EWOULDBLOCK),
TestWriteMultiplePackets(1, buffered_writes.begin(),
buffered_writes.end(), &num_packets_sent));
EXPECT_EQ(0, num_packets_sent);
}
TEST_F(QuicLinuxSocketUtilsTest, WriteMultiplePackets_WriteError) {
int num_packets_sent;
quiche::QuicheCircularDeque<BufferedWrite> buffered_writes;
buffered_writes.emplace_back(nullptr, 0, QuicIpAddress(),
QuicSocketAddress(QuicIpAddress::Any4(), 0));
EXPECT_CALL(mock_syscalls_, Sendmmsg(_, _, _, _))
.WillOnce(Invoke([](int , mmsghdr* ,
unsigned int , int ) {
errno = EPERM;
return -1;
}));
EXPECT_EQ(WriteResult(WRITE_STATUS_ERROR, EPERM),
TestWriteMultiplePackets(1, buffered_writes.begin(),
buffered_writes.end(), &num_packets_sent));
EXPECT_EQ(0, num_packets_sent);
}
TEST_F(QuicLinuxSocketUtilsTest, WriteMultiplePackets_WriteSuccess) {
int num_packets_sent;
quiche::QuicheCircularDeque<BufferedWrite> buffered_writes;
const int kNumBufferedWrites = 10;
static_assert(kNumBufferedWrites < 256, "Must be less than 256");
std::vector<std::string> buffer_holder;
for (int i = 0; i < kNumBufferedWrites; ++i) {
size_t buf_len = (i + 1) * 2;
std::ostringstream buffer_ostream;
while (buffer_ostream.str().length() < buf_len) {
buffer_ostream << i;
}
buffer_holder.push_back(buffer_ostream.str().substr(0, buf_len - 1) + '$');
buffered_writes.emplace_back(buffer_holder.back().data(), buf_len,
QuicIpAddress(),
QuicSocketAddress(QuicIpAddress::Any4(), 0));
if (i != 0) {
ASSERT_TRUE(buffered_writes.back().self_address.FromString("127.0.0.1"));
}
std::ostringstream peer_ip_ostream;
QuicIpAddress peer_ip_address;
peer_ip_ostream << "127.0.1." << i + 1;
ASSERT_TRUE(peer_ip_address.FromString(peer_ip_ostream.str()));
buffered_writes.back().peer_address =
QuicSocketAddress(peer_ip_address, i + 1);
}
InSequence s;
for (int expected_num_packets_sent : {1, 2, 3, 10}) {
SCOPED_TRACE(testing::Message()
<< "expected_num_packets_sent=" << expected_num_packets_sent);
EXPECT_CALL(mock_syscalls_, Sendmmsg(_, _, _, _))
.WillOnce(Invoke([&](int , mmsghdr* msgvec, unsigned int vlen,
int ) {
EXPECT_LE(static_cast<unsigned int>(expected_num_packets_sent), vlen);
for (unsigned int i = 0; i < vlen; ++i) {
const BufferedWrite& buffered_write = buffered_writes[i];
const msghdr& hdr = msgvec[i].msg_hdr;
EXPECT_EQ(1u, hdr.msg_iovlen);
EXPECT_EQ(buffered_write.buffer, hdr.msg_iov->iov_base);
EXPECT_EQ(buffered_write.buf_len, hdr.msg_iov->iov_len);
sockaddr_storage expected_peer_address =
buffered_write.peer_address.generic_address();
EXPECT_EQ(0, memcmp(&expected_peer_address, hdr.msg_name,
sizeof(sockaddr_storage)));
EXPECT_EQ(buffered_write.self_address.IsInitialized(),
hdr.msg_control != nullptr);
}
return expected_num_packets_sent;
}))
.RetiresOnSaturation();
int expected_bytes_written = 0;
for (auto it = buffered_writes.cbegin();
it != buffered_writes.cbegin() + expected_num_packets_sent; ++it) {
expected_bytes_written += it->buf_len;
}
EXPECT_EQ(
WriteResult(WRITE_STATUS_OK, expected_bytes_written),
TestWriteMultiplePackets(1, buffered_writes.cbegin(),
buffered_writes.cend(), &num_packets_sent));
EXPECT_EQ(expected_num_packets_sent, num_packets_sent);
}
}
}
}
} |
265 | cpp | google/quiche | tls_client_handshaker | quiche/quic/core/tls_client_handshaker.cc | quiche/quic/core/tls_client_handshaker_test.cc | #ifndef QUICHE_QUIC_CORE_TLS_CLIENT_HANDSHAKER_H_
#define QUICHE_QUIC_CORE_TLS_CLIENT_HANDSHAKER_H_
#include <cstdint>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/crypto/tls_client_connection.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/tls_handshaker.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT TlsClientHandshaker
: public TlsHandshaker,
public QuicCryptoClientStream::HandshakerInterface,
public TlsClientConnection::Delegate {
public:
TlsClientHandshaker(const QuicServerId& server_id, QuicCryptoStream* stream,
QuicSession* session,
std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
QuicCryptoClientStream::ProofHandler* proof_handler,
bool has_application_state);
TlsClientHandshaker(const TlsClientHandshaker&) = delete;
TlsClientHandshaker& operator=(const TlsClientHandshaker&) = delete;
~TlsClientHandshaker() override;
bool CryptoConnect() override;
int num_sent_client_hellos() const override;
bool ResumptionAttempted() const override;
bool IsResumption() const override;
bool EarlyDataAccepted() const override;
ssl_early_data_reason_t EarlyDataReason() const override;
bool ReceivedInchoateReject() const override;
int num_scup_messages_received() const override;
std::string chlo_hash() const override;
bool ExportKeyingMaterial(absl::string_view label, absl::string_view context,
size_t result_len, std::string* result) override;
bool encryption_established() const override;
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override;
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override;
bool one_rtt_keys_available() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
HandshakeState GetHandshakeState() const override;
size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
void OnOneRttPacketAcknowledged() override;
void OnHandshakePacketSent() override;
void OnConnectionClosed(QuicErrorCode error,
ConnectionCloseSource source) override;
void OnHandshakeDoneReceived() override;
void OnNewTokenReceived(absl::string_view token) override;
void SetWriteSecret(EncryptionLevel level, const SSL_CIPHER* cipher,
absl::Span<const uint8_t> write_secret) override;
void WriteMessage(EncryptionLevel level, absl::string_view data) override;
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> application_state) override;
void AllowEmptyAlpnForTests() { allow_empty_alpn_for_tests_ = true; }
void AllowInvalidSNIForTests() { allow_invalid_sni_for_tests_ = true; }
using TlsHandshaker::ssl;
protected:
const TlsConnection* tls_connection() const override {
return &tls_connection_;
}
void FinishHandshake() override;
void OnEnterEarlyData() override;
void FillNegotiatedParams();
void ProcessPostHandshakeMessage() override;
bool ShouldCloseConnectionOnUnexpectedError(int ssl_error) override;
QuicAsyncStatus VerifyCertChain(
const std::vector<std::string>& certs, std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details, uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback) override;
void OnProofVerifyDetailsAvailable(
const ProofVerifyDetails& verify_details) override;
TlsConnection::Delegate* ConnectionDelegate() override { return this; }
private:
bool SetAlpn();
bool SetTransportParameters();
bool ProcessTransportParameters(std::string* error_details);
void HandleZeroRttReject();
void OnHandshakeConfirmed();
void InsertSession(bssl::UniquePtr<SSL_SESSION> session) override;
bool PrepareZeroRttConfig(QuicResumptionState* cached_state);
QuicSession* session() { return session_; }
QuicSession* session_;
QuicServerId server_id_;
ProofVerifier* proof_verifier_;
std::unique_ptr<ProofVerifyContext> verify_context_;
QuicCryptoClientStream::ProofHandler* proof_handler_;
SessionCache* session_cache_;
std::string user_agent_id_;
std::string pre_shared_key_;
HandshakeState state_ = HANDSHAKE_START;
bool encryption_established_ = false;
bool initial_keys_dropped_ = false;
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters>
crypto_negotiated_params_;
bool allow_empty_alpn_for_tests_ = false;
bool allow_invalid_sni_for_tests_ = false;
const bool has_application_state_;
std::unique_ptr<QuicResumptionState> cached_state_;
TlsClientConnection tls_connection_;
bssl::UniquePtr<SSL_SESSION> cached_tls_sessions_[2] = {};
std::unique_ptr<TransportParameters> received_transport_params_ = nullptr;
std::unique_ptr<ApplicationState> received_application_state_ = nullptr;
};
}
#endif
#include "quiche/quic/core/tls_client_handshaker.h"
#include <algorithm>
#include <cstring>
#include <limits>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_hostname_utils.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
TlsClientHandshaker::TlsClientHandshaker(
const QuicServerId& server_id, QuicCryptoStream* stream,
QuicSession* session, std::unique_ptr<ProofVerifyContext> verify_context,
QuicCryptoClientConfig* crypto_config,
QuicCryptoClientStream::ProofHandler* proof_handler,
bool has_application_state)
: TlsHandshaker(stream, session),
session_(session),
server_id_(server_id),
proof_verifier_(crypto_config->proof_verifier()),
verify_context_(std::move(verify_context)),
proof_handler_(proof_handler),
session_cache_(crypto_config->session_cache()),
user_agent_id_(crypto_config->user_agent_id()),
pre_shared_key_(crypto_config->pre_shared_key()),
crypto_negotiated_params_(new QuicCryptoNegotiatedParameters),
has_application_state_(has_application_state),
tls_connection_(crypto_config->ssl_ctx(), this, session->GetSSLConfig()) {
if (crypto_config->tls_signature_algorithms().has_value()) {
SSL_set1_sigalgs_list(ssl(),
crypto_config->tls_signature_algorithms()->c_str());
}
if (crypto_config->proof_source() != nullptr) {
std::shared_ptr<const ClientProofSource::CertAndKey> cert_and_key =
crypto_config->proof_source()->GetCertAndKey(server_id.host());
if (cert_and_key != nullptr) {
QUIC_DVLOG(1) << "Setting client cert and key for " << server_id.host();
tls_connection_.SetCertChain(cert_and_key->chain->ToCryptoBuffers().value,
cert_and_key->private_key.private_key());
}
}
#if BORINGSSL_API_VERSION >= 22
if (!crypto_config->preferred_groups().empty()) {
SSL_set1_group_ids(ssl(), crypto_config->preferred_groups().data(),
crypto_config->preferred_groups().size());
}
#endif
#if BORINGSSL_API_VERSION >= 27
SSL_set_alps_use_new_codepoint(ssl(),
crypto_config->alps_use_new_codepoint());
#endif
}
TlsClientHandshaker::~TlsClientHandshaker() {}
bool TlsClientHandshaker::CryptoConnect() {
if (!pre_shared_key_.empty()) {
std::string error_details =
"QUIC client pre-shared keys not yet supported with TLS";
QUIC_BUG(quic_bug_10576_1) << error_details;
CloseConnection(QUIC_HANDSHAKE_FAILED, error_details);
return false;
}
int use_legacy_extension = 0;
if (session()->version().UsesLegacyTlsExtension()) {
use_legacy_extension = 1;
}
SSL_set_quic_use_legacy_codepoint(ssl(), use_legacy_extension);
#if BORINGSSL_API_VERSION >= 16
SSL_set_permute_extensions(ssl(), true);
#endif
SSL_set_connect_state(ssl());
if (QUIC_DLOG_INFO_IS_ON() &&
!QuicHostnameUtils::IsValidSNI(server_id_.host())) {
QUIC_DLOG(INFO) << "Client configured with invalid hostname \""
<< server_id_.host() << "\", not sending as SNI";
}
if (!server_id_.host().empty() &&
(QuicHostnameUtils::IsValidSNI(server_id_.host()) ||
allow_invalid_sni_for_tests_) &&
SSL_set_tlsext_host_name(ssl(), server_id_.host().c_str()) != 1) {
return false;
}
if (!SetAlpn()) {
CloseConnection(QUIC_HANDSHAKE_FAILED, "Client failed to set ALPN");
return false;
}
if (!SetTransportParameters()) {
CloseConnection(QUIC_HANDSHAKE_FAILED,
"Client failed to set Transport Parameters");
return false;
}
if (session_cache_) {
cached_state_ = session_cache_->Lookup(
server_id_, session()->GetClock()->WallNow(), SSL_get_SSL_CTX(ssl()));
}
if (cached_state_) {
SSL_set_session(ssl(), cached_state_->tls_session.get());
if (!cached_state_->token.empty()) {
session()->SetSourceAddressTokenToSend(cached_state_->token);
}
}
SSL_set_enable_ech_grease(ssl(),
tls_connection_.ssl_config().ech_grease_enabled);
if (!tls_connection_.ssl_config().ech_config_list.empty() &&
!SSL_set1_ech_config_list(
ssl(),
reinterpret_cast<const uint8_t*>(
tls_connection_.ssl_config().ech_config_list.data()),
tls_connection_.ssl_config().ech_config_list.size())) {
CloseConnection(QUIC_HANDSHAKE_FAILED,
"Client failed to set ECHConfigList");
return false;
}
AdvanceHandshake();
return session()->connection()->connected();
}
bool TlsClientHandshaker::PrepareZeroRttConfig(
QuicResumptionState* cached_state) {
std::string error_details;
if (!cached_state->transport_params ||
handshaker_delegate()->ProcessTransportParameters(
*(cached_state->transport_params),
true, &error_details) != QUIC_NO_ERROR) {
QUIC_BUG(quic_bug_10576_2)
<< "Unable to parse cached transport parameters.";
CloseConnection(QUIC_HANDSHAKE_FAILED,
"Client failed to parse cached Transport Parameters.");
return false;
}
session()->connection()->OnTransportParametersResumed(
*(cached_state->transport_params));
session()->OnConfigNegotiated();
if (has_application_state_) {
if (!cached_state->application_state ||
!session()->ResumeApplicationState(
cached_state->application_state.get())) {
QUIC_BUG(quic_bug_10576_3) << "Unable to parse cached application state.";
CloseConnection(QUIC_HANDSHAKE_FAILED,
"Client failed to parse cached application state.");
return false;
}
}
return true;
}
static bool IsValidAlpn(const std::string& alpn_string) {
return alpn_string.length() <= std::numeric_limits<uint8_t>::max();
}
bool TlsClientHandshaker::SetAlpn() {
std::vector<std::string> alpns = session()->GetAlpnsToOffer();
if (alpns.empty()) {
if (allow_empty_alpn_for_tests_) {
return true;
}
QUIC_BUG(quic_bug_10576_4) << "ALPN missing";
return false;
}
if (!std::all_of(alpns.begin(), alpns.end(), IsValidAlpn)) {
QUIC_BUG(quic_bug_10576_5) << "ALPN too long";
return false;
}
uint8_t alpn[1024];
QuicDataWriter alpn_writer(sizeof(alpn), reinterpret_cast<char*>(alpn));
bool success = true;
for (const std::string& alpn_string : alpns) {
success = success && alpn_writer.WriteUInt8(alpn_string.size()) &&
alpn_writer.WriteStringPiece(alpn_string);
}
success =
success && (SSL_set_alpn_protos(ssl(), alpn, alpn_writer.length()) == 0);
if (!success) {
QUIC_BUG(quic_bug_10576_6)
<< "Failed to set ALPN: "
<< quiche::QuicheTextUtils::HexDump(
absl::string_view(alpn_writer.data(), alpn_writer.length()));
return false;
}
for (const std::string& alpn_string : alpns) {
for (const ParsedQuicVersion& version : session()->supported_versions()) {
if (!version.UsesHttp3() || AlpnForVersion(version) != alpn_string) {
continue;
}
if (SSL_add_application_settings(
ssl(), reinterpret_cast<const uint8_t*>(alpn_string.data()),
alpn_string.size(), nullptr, 0) != 1) {
QUIC_BUG(quic_bug_10576_7) << "Failed to enable ALPS.";
return false;
}
break;
}
}
QUIC_DLOG(INFO) << "Client using ALPN: '" << alpns[0] << "'";
return true;
}
bool TlsClientHandshaker::SetTransportParameters() {
TransportParameters params;
params.perspective = Perspective::IS_CLIENT;
params.legacy_version_information =
TransportParameters::LegacyVersionInformation();
params.legacy_version_information->version =
CreateQuicVersionLabel(session()->supported_versions().front());
params.version_information = TransportParameters::VersionInformation();
const QuicVersionLabel version = CreateQuicVersionLabel(session()->version());
params.version_information->chosen_version = version;
params.version_information->other_versions.push_back(version);
if (!handshaker_delegate()->FillTransportParameters(¶ms)) {
return false;
}
session()->connection()->OnTransportParametersSent(params);
std::vector<uint8_t> param_bytes;
return SerializeTransportParameters(params, ¶m_bytes) &&
SSL_set_quic_transport_params(ssl(), param_bytes.data(),
param_bytes.size()) == 1;
}
bool TlsClientHandshaker::ProcessTransportParameters(
std::string* error_details) {
received_transport_params_ = std::make_unique<TransportParameters>();
const uint8_t* param_bytes;
size_t param_bytes_len;
SSL_get_peer_quic_transport_params(ssl(), ¶m_bytes, ¶m_bytes_len);
if (param_bytes_len == 0) {
*error_details = "Server's transport parameters are missing";
return false;
}
std::string parse_error_details;
if (!ParseTransportParameters(
session()->connection()->version(), Perspective::IS_SERVER,
param_bytes, param_bytes_len, received_transport_params_.get(),
&parse_error_details)) {
QUICHE_DCHECK(!parse_error_details.empty());
*error_details =
"Unable to parse server's transport parameters: " + parse_error_details;
return false;
}
session()->connection()->OnTransportParametersReceived(
*received_transport_params_);
if (received_transport_params_->legacy_version_information.has_value()) {
if (received_transport_params_->legacy_version_information->version !=
CreateQuicVersionLabel(session()->connection()->version())) {
*error_details = "Version mismatch detected";
return false;
}
if (CryptoUtils::ValidateServerHelloVersions(
received_transport_params_->legacy_version_information
->supported_versions,
session()->connection()->server_supported_versions(),
error_details) != QUIC_NO_ERROR) {
QUICHE_DCHECK(!error_details->empty());
return false;
}
}
if (received_transport_params_->version_information.has_value()) {
if (!CryptoUtils::ValidateChosenVersion(
received_transport_params_->version_information->chosen_version,
session()->version(), error_details)) {
QUICHE_DCHECK(!error_details->empty());
return false;
}
if (!CryptoUtils::CryptoUtils::ValidateServerVersions(
received_transport_params_->version_information->other_versions,
session()->version(),
session()->client_original_supported_versions(), error_details)) {
QUICHE_DCHECK(!error_details->empty());
return false;
}
}
if (handshaker_delegate()->ProcessTransportParameters(
*received_transport_params_, false,
error_details) != QUIC_NO_ERROR) {
QUICHE_DCHECK(!error_details->empty());
return false;
}
session()->OnConfigNegotiated();
if (is_connection_closed()) {
*error_details =
"Session closed the connection when parsing negotiated config.";
return false;
}
return true;
}
int TlsClientHandshaker::num_sent_client_hellos() const { return 0; }
bool TlsClientHandshaker::ResumptionAttempted() const {
QUIC_BUG_IF(quic_tls_client_resumption_attempted, !encryption_established_);
return cached_state_ != nullptr;
}
bool TlsClientHandshaker::IsResumption() const {
QUIC_BUG_IF(quic_bug_12736_1, !one_rtt_keys_available());
return SSL_session_reused(ssl()) == 1;
}
bool TlsClientHandshaker::EarlyDataAccepted() const {
QUIC_BUG_IF(quic_bug_12736_2, !one_rtt_keys_available());
return SSL_early_data_accepted(ssl()) == 1;
}
ssl_early_data_reason_t TlsClientHandshaker::EarlyDataReason() const {
return TlsHandshaker::EarlyDataReason();
}
bool TlsClientHandshaker::ReceivedInchoateReject() const {
QUIC_BUG_IF(quic_bug_12736_3, !one_rtt_keys_available());
return false;
}
int TlsClientHandshaker::num_scup_messages_received() const {
return 0;
}
std::string TlsClientHandshaker::chlo_hash() const { return ""; }
bool TlsClientHandshaker::ExportKeyingMaterial(absl::string_view label,
absl::string_view context,
size_t result_len,
std::string* result) {
return ExportKeyingMaterialForLabel(label, context, result_len, result);
}
bool TlsClientHandshaker::encryption_established() const {
return encryption_established_;
}
bool TlsClientHandshaker::IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const {
return level != ENCRYPTION_ZERO_RTT;
}
EncryptionLevel TlsClientHandshaker::GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const {
switch (space) {
case INITIAL_DATA:
return ENCRYPTION_INITIAL;
case HANDSHAKE_DATA:
return ENCRYPTION_HANDSHAKE;
default:
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
}
bool TlsClientHandshaker::one_rtt_keys_available() const {
return state_ >= HANDSHAKE_COMPLETE;
}
const QuicCryptoNegotiatedParameters&
TlsClientHandshaker::crypto_negotiated_params() const {
return *crypto_negotiated_params_;
}
CryptoMessageParser* TlsClientHandshaker::crypto_message_parser() {
return TlsHandshaker::crypto_message_parser();
}
HandshakeState TlsClientHandshaker::GetHandshakeState() const { return state_; }
size_t TlsClientHandshaker::BufferSizeLimitForLevel(
EncryptionLevel level) const {
return TlsHandshaker::BufferSizeLimitForLevel(level);
}
std::unique_ptr<QuicDecrypter>
TlsClientHandshaker::AdvanceKeysAndCreateCurrentOneRttDecrypter() {
return TlsHandshaker::AdvanceKeysAndCreateCurrentOneRttDecrypter();
}
std::unique_ptr<QuicEncrypter>
TlsClientHandshaker::CreateCurrentOneRttEncrypter() {
return TlsHandshaker::CreateCurrentOneRttEncrypter();
}
void TlsClientHandshaker::OnOneRttPacketAcknowledged() {
OnHandshakeConfirmed();
}
void TlsClientHandshaker::OnHandshakePacketSent() {
if (initial_keys_dropped_) {
return;
}
initial_keys_dropped_ = true;
handshaker_delegate()->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
handshaker_delegate()->DiscardOldDecryptionKey(ENCRYPTION_INITIAL);
}
void TlsClientHandshaker::OnConnectionClosed(QuicErrorCode error,
ConnectionCloseSource source) {
TlsHandshaker::OnConnectionClosed(error, source);
}
void TlsClientHandshaker::OnHandshakeDoneReceived() {
if (!one_rtt_keys_available()) {
CloseConnection(QUIC_HANDSHAKE_FAILED,
"Unexpected handshake done received");
return;
}
OnHandshakeConfirmed();
}
void TlsClientHandshaker::OnNewTokenReceived(absl::string_view token) {
if (token.empty()) {
return;
}
if (session_cache_ != nullptr) {
session_cache_->OnNewTokenReceived(server_id_, token);
}
}
void TlsClientHandshaker::SetWriteSecret(
EncryptionLevel level, const SSL_CIPHER* cipher,
absl::Span<const uint8_t> write_secret) {
if (is_connection_closed()) {
return;
}
if (level == ENCRYPTION_FORWARD_SECURE || level == ENCRYPTION_ZERO_RTT) {
encryption_established_ = true;
}
TlsHandshaker::SetWriteSecret(level, cipher, write_secret);
if (level == ENCRYPTION_FORWARD_SECURE) {
handshaker_delegate()->DiscardOldEncryptionKey(ENCRYPTION_ZERO_RTT);
}
}
void TlsClientHandshaker::OnHandshakeConfirmed() {
QUICHE_DCHECK(one_rtt_keys_available());
if (state_ >= HANDSHAKE_CONFIRMED) {
return;
}
state_ = HANDSHAKE_CONFIRMED;
handshaker_delegate()->OnTlsHandshakeConfirmed();
handshaker_delegate()->DiscardOldEncryptionKey(ENCRYPTION_HANDSHAKE);
handshaker_delegate()->DiscardOldDecryptionKey(ENCRYPTION_HANDSHAKE);
}
QuicAsyncStatus TlsClientHandshaker::VerifyCertChain(
const std::vector<std::string>& certs, std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details, uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback) {
const uint8_t* ocsp_response_raw;
size_t ocsp_response_len;
SSL_get0_ocsp_response(ssl(), &ocsp_response_raw, &ocsp_response_len);
std::string ocsp_response(reinterpret_cast<const char*>(ocsp_response_raw),
ocsp_response_len);
const uint8_t* sct_list_raw;
size_t sct_list_len;
SSL_get0_signed_cert_timestamp_list(ssl(), &sct_list_raw, &sct_list_len);
std::string sct_list(reinterpret_cast<const char*>(sct_list_raw),
sct_list_len);
return proof_verifier_->VerifyCertChain(
server_id_.host(), server_id_.port(), certs, ocsp_response, sct_list,
verify_context_.get(), error_details, details, out_alert,
std::move(callback));
}
void TlsClientHandshaker::OnProofVerifyDetailsAvailable(
const ProofVerifyDetails& verify_details) {
proof_handler_->OnProofVerifyDetailsAvailable(verify_details);
}
void TlsClientHandshaker::FinishHandshake() {
FillNegotiatedParams();
QUICHE_CHECK(!SSL_in_early_data(ssl()));
QUIC_LOG(INFO) << "Client: handshake finished";
std::string error_details;
if (!ProcessTransportParameters(&error_details)) {
QUICHE_DCHECK(!error_details.empty());
CloseConnection(QUIC_HANDSHAKE_FAILED, error_details);
return;
}
const uint8_t* alpn_data = nullptr;
unsigned alpn_length = 0;
SSL_get0_alpn_selected(ssl(), &alpn_data, &alpn_length);
if (alpn_length == 0) {
QUIC_DLOG(ERROR) << "Client: server did not select ALPN";
CloseConnection(QUIC_HANDSHAKE_FAILED, "Server did not select ALPN");
return;
}
std::string received_alpn_string(reinterpret_cast<const char*>(alpn_data),
alpn_length);
std::vector<std::string> offered_alpns = session()->GetAlpnsToOffer();
if (std::find(offered_alpns.begin(), offered_alpns.end(),
received_alpn_string) == offered_alpns.end()) {
QUIC_LOG(ERROR) << "Client: received mismatched ALPN '"
<< received_alpn_string;
CloseConnection(QUIC_HANDSHAKE_FAILED, "Client received mismatched ALPN");
return;
}
session()->OnAlpnSelected(received_alpn_string);
QUIC_DLOG(INFO) << "Client: server selected ALPN: '" << received_alpn_string
<< "'";
const uint8_t* alps_data;
size_t alps_length;
SSL_get0_peer_application_settings(ssl(), &alps_data, &alps_length);
if (alps_length > 0) {
auto error = session()->OnAlpsData(alps_data, alps_length);
if (error.has_value()) {
CloseConnection(QUIC_HANDSHAKE_FAILED,
absl::StrCat("Error processing ALPS data: ", *error));
return;
}
}
state_ = HANDSHAKE_COMPLETE;
handshaker_delegate()->OnTlsHandshakeComplete();
}
void TlsClientHandshaker::OnEnterEarlyData() {
QUICHE_DCHECK(SSL_in_early_data(ssl()));
FillNegotiatedParams();
PrepareZeroRttConfig(cached_state_.get());
}
void TlsClientHandshaker::FillNegotiatedParams() {
const SSL_CIPHER* cipher = SSL_get_current_cipher(ssl());
if (cipher) {
crypto_negotiated_params_->cipher_suite =
SSL_CIPHER_get_protocol_id(cipher);
}
crypto_negotiated_params_->key_exchange_group = SSL_get_curve_id(ssl());
crypto_negotiated_params_->peer_signature_algorithm =
SSL_get_peer_signature_algorithm(ssl());
crypto_negotiated_params_->encrypted_client_hello = SSL_ech_accepted(ssl());
}
void TlsClientHandshaker::ProcessPostHandshakeMessage() {
int rv = SSL_process_quic_post_handshake(ssl());
if (rv != 1) {
CloseConnection(QUIC_HANDSHAKE_FAILED, "Unexpected post-handshake data");
}
}
bool TlsClientHandshaker::ShouldCloseConnectionOnUnexpectedError(
int ssl_error) {
if (ssl_error != SSL_ERROR_EARLY_DATA_REJECTED) {
return true;
}
HandleZeroRttReject();
return false;
}
void TlsClientHandshaker::HandleZeroRttReject() {
QUIC_LOG(INFO) << "0-RTT handshake attempted but was rejected by the server";
QUICHE_DCHECK(session_cache_);
encryption_established_ = false;
handshaker_delegate()->OnZeroRttRejected(EarlyDataReason());
SSL_reset_early_data_reject(ssl());
session_cache_->ClearEarlyData(server_id_);
AdvanceHandshake();
}
void TlsClientHandshaker::InsertSession(bssl::UniquePtr<SSL_SESSION> session) {
if (!received_transport_params_) {
QUIC_BUG(quic_bug_10576_8) << "Transport parameters isn't received";
return;
}
if (session_cache_ == nullptr) {
QUIC_DVLOG(1) << "No session cache, not inserting a session";
return;
}
if (has_application_state_ && !received_application_state_) {
if (cached_tls_sessions_[0] != nullptr) {
cached_tls_sessions_[1] = std::move(cached_tls_sessions_[0]);
}
cached_tls_sessions_[0] = std::move(session);
return;
}
session_cache_->Insert(server_id_, std::move(session),
*received_transport_params_,
received_application_state_.get());
}
void TlsClientHandshaker::WriteMessage(EncryptionLevel level,
absl::string_view data) {
if (level == ENCRYPTION_HANDSHAKE && state_ < HANDSHAKE_PROCESSED) {
state_ = HANDSHAKE_PROCESSED;
}
TlsHandshaker::WriteMessage(level, data);
}
void TlsClientHandshaker::SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> application_state) {
QUICHE_DCHECK(one_rtt_keys_available());
received_application_state_ = std::move(application_state);
if (session_cache_ != nullptr && cached_tls_sessions_[0] != nullptr) {
if (cached_tls_sessions_[1] != nullptr) {
session_cache_->Insert(server_id_, std::move(cached_tls_sessions_[1]),
*received_transport_params_,
received_application_state_.get());
}
session_cache_->Insert(server_id_, std::move(cached_tls_sessions_[0]),
*received_transport_params_,
received_application_state_.get());
}
}
} | #include <algorithm>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "openssl/hpke.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_server_id.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_framer_peer.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_session_cache.h"
#include "quiche/quic/tools/fake_proof_verifier.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
using testing::_;
namespace quic {
namespace test {
namespace {
constexpr char kServerHostname[] = "test.example.com";
constexpr uint16_t kServerPort = 443;
class TestProofVerifier : public ProofVerifier {
public:
TestProofVerifier()
: verifier_(crypto_test_utils::ProofVerifierForTesting()) {}
QuicAsyncStatus VerifyProof(
const std::string& hostname, const uint16_t port,
const std::string& server_config, QuicTransportVersion quic_version,
absl::string_view chlo_hash, const std::vector<std::string>& certs,
const std::string& cert_sct, const std::string& signature,
const ProofVerifyContext* context, std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details,
std::unique_ptr<ProofVerifierCallback> callback) override {
return verifier_->VerifyProof(
hostname, port, server_config, quic_version, chlo_hash, certs, cert_sct,
signature, context, error_details, details, std::move(callback));
}
QuicAsyncStatus VerifyCertChain(
const std::string& hostname, const uint16_t port,
const std::vector<std::string>& certs, const std::string& ocsp_response,
const std::string& cert_sct, const ProofVerifyContext* context,
std::string* error_details, std::unique_ptr<ProofVerifyDetails>* details,
uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback) override {
if (!active_) {
return verifier_->VerifyCertChain(
hostname, port, certs, ocsp_response, cert_sct, context,
error_details, details, out_alert, std::move(callback));
}
pending_ops_.push_back(std::make_unique<VerifyChainPendingOp>(
hostname, port, certs, ocsp_response, cert_sct, context, error_details,
details, out_alert, std::move(callback), verifier_.get()));
return QUIC_PENDING;
}
std::unique_ptr<ProofVerifyContext> CreateDefaultContext() override {
return nullptr;
}
void Activate() { active_ = true; }
size_t NumPendingCallbacks() const { return pending_ops_.size(); }
void InvokePendingCallback(size_t n) {
ASSERT_GT(NumPendingCallbacks(), n);
pending_ops_[n]->Run();
auto it = pending_ops_.begin() + n;
pending_ops_.erase(it);
}
private:
class FailingProofVerifierCallback : public ProofVerifierCallback {
public:
void Run(bool , const std::string& ,
std::unique_ptr<ProofVerifyDetails>* ) override {
FAIL();
}
};
class VerifyChainPendingOp {
public:
VerifyChainPendingOp(const std::string& hostname, const uint16_t port,
const std::vector<std::string>& certs,
const std::string& ocsp_response,
const std::string& cert_sct,
const ProofVerifyContext* context,
std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details,
uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback,
ProofVerifier* delegate)
: hostname_(hostname),
port_(port),
certs_(certs),
ocsp_response_(ocsp_response),
cert_sct_(cert_sct),
context_(context),
error_details_(error_details),
details_(details),
out_alert_(out_alert),
callback_(std::move(callback)),
delegate_(delegate) {}
void Run() {
QuicAsyncStatus status = delegate_->VerifyCertChain(
hostname_, port_, certs_, ocsp_response_, cert_sct_, context_,
error_details_, details_, out_alert_,
std::make_unique<FailingProofVerifierCallback>());
ASSERT_NE(status, QUIC_PENDING);
callback_->Run(status == QUIC_SUCCESS, *error_details_, details_);
}
private:
std::string hostname_;
const uint16_t port_;
std::vector<std::string> certs_;
std::string ocsp_response_;
std::string cert_sct_;
const ProofVerifyContext* context_;
std::string* error_details_;
std::unique_ptr<ProofVerifyDetails>* details_;
uint8_t* out_alert_;
std::unique_ptr<ProofVerifierCallback> callback_;
ProofVerifier* delegate_;
};
std::unique_ptr<ProofVerifier> verifier_;
bool active_ = false;
std::vector<std::unique_ptr<VerifyChainPendingOp>> pending_ops_;
};
class TlsClientHandshakerTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
TlsClientHandshakerTest()
: supported_versions_({GetParam()}),
server_id_(kServerHostname, kServerPort, false),
server_compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize) {
crypto_config_ = std::make_unique<QuicCryptoClientConfig>(
std::make_unique<TestProofVerifier>(),
std::make_unique<test::SimpleSessionCache>());
server_crypto_config_ = crypto_test_utils::CryptoServerConfigForTesting();
CreateConnection();
}
void CreateSession() {
session_ = std::make_unique<TestQuicSpdyClientSession>(
connection_, DefaultQuicConfig(), supported_versions_, server_id_,
crypto_config_.get(), ssl_config_);
EXPECT_CALL(*session_, GetAlpnsToOffer())
.WillRepeatedly(testing::Return(std::vector<std::string>(
{AlpnForVersion(connection_->version())})));
}
void CreateConnection() {
connection_ =
new PacketSavingConnection(&client_helper_, &alarm_factory_,
Perspective::IS_CLIENT, supported_versions_);
connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
CreateSession();
}
void CompleteCryptoHandshake() {
CompleteCryptoHandshakeWithServerALPN(
AlpnForVersion(connection_->version()));
}
void CompleteCryptoHandshakeWithServerALPN(const std::string& alpn) {
EXPECT_CALL(*connection_, SendCryptoData(_, _, _))
.Times(testing::AnyNumber());
stream()->CryptoConnect();
QuicConfig config;
crypto_test_utils::HandshakeWithFakeServer(
&config, server_crypto_config_.get(), &server_helper_, &alarm_factory_,
connection_, stream(), alpn);
}
QuicCryptoClientStream* stream() {
return session_->GetMutableCryptoStream();
}
QuicCryptoServerStreamBase* server_stream() {
return server_session_->GetMutableCryptoStream();
}
void InitializeFakeServer() {
TestQuicSpdyServerSession* server_session = nullptr;
CreateServerSessionForTest(
server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_,
&server_helper_, &alarm_factory_, server_crypto_config_.get(),
&server_compressed_certs_cache_, &server_connection_, &server_session);
server_session_.reset(server_session);
std::string alpn = AlpnForVersion(connection_->version());
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillRepeatedly([alpn](const std::vector<absl::string_view>& alpns) {
return std::find(alpns.cbegin(), alpns.cend(), alpn);
});
}
static bssl::UniquePtr<SSL_ECH_KEYS> MakeTestEchKeys(
const char* public_name, size_t max_name_len,
std::string* ech_config_list) {
bssl::ScopedEVP_HPKE_KEY key;
if (!EVP_HPKE_KEY_generate(key.get(), EVP_hpke_x25519_hkdf_sha256())) {
return nullptr;
}
uint8_t* ech_config;
size_t ech_config_len;
if (!SSL_marshal_ech_config(&ech_config, &ech_config_len,
1, key.get(), public_name,
max_name_len)) {
return nullptr;
}
bssl::UniquePtr<uint8_t> scoped_ech_config(ech_config);
uint8_t* ech_config_list_raw;
size_t ech_config_list_len;
bssl::UniquePtr<SSL_ECH_KEYS> keys(SSL_ECH_KEYS_new());
if (!keys ||
!SSL_ECH_KEYS_add(keys.get(), 1, ech_config,
ech_config_len, key.get()) ||
!SSL_ECH_KEYS_marshal_retry_configs(keys.get(), &ech_config_list_raw,
&ech_config_list_len)) {
return nullptr;
}
bssl::UniquePtr<uint8_t> scoped_ech_config_list(ech_config_list_raw);
ech_config_list->assign(ech_config_list_raw,
ech_config_list_raw + ech_config_list_len);
return keys;
}
MockQuicConnectionHelper server_helper_;
MockQuicConnectionHelper client_helper_;
MockAlarmFactory alarm_factory_;
PacketSavingConnection* connection_;
ParsedQuicVersionVector supported_versions_;
std::unique_ptr<TestQuicSpdyClientSession> session_;
QuicServerId server_id_;
CryptoHandshakeMessage message_;
std::unique_ptr<QuicCryptoClientConfig> crypto_config_;
std::optional<QuicSSLConfig> ssl_config_;
std::unique_ptr<QuicCryptoServerConfig> server_crypto_config_;
PacketSavingConnection* server_connection_;
std::unique_ptr<TestQuicSpdyServerSession> server_session_;
QuicCompressedCertsCache server_compressed_certs_cache_;
};
INSTANTIATE_TEST_SUITE_P(TlsHandshakerTests, TlsClientHandshakerTest,
::testing::ValuesIn(AllSupportedVersionsWithTls()),
::testing::PrintToStringParamName());
TEST_P(TlsClientHandshakerTest, NotInitiallyConnected) {
EXPECT_FALSE(stream()->encryption_established());
EXPECT_FALSE(stream()->one_rtt_keys_available());
}
TEST_P(TlsClientHandshakerTest, ConnectedAfterHandshake) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
}
TEST_P(TlsClientHandshakerTest, ConnectionClosedOnTlsError) {
stream()->CryptoConnect();
EXPECT_CALL(*connection_, CloseConnection(QUIC_HANDSHAKE_FAILED, _, _, _));
char bogus_handshake_message[] = {
2,
0, 0, 0,
};
stream()->crypto_message_parser()->ProcessInput(
absl::string_view(bogus_handshake_message,
ABSL_ARRAYSIZE(bogus_handshake_message)),
ENCRYPTION_INITIAL);
EXPECT_FALSE(stream()->one_rtt_keys_available());
}
TEST_P(TlsClientHandshakerTest, ProofVerifyDetailsAvailableAfterHandshake) {
EXPECT_CALL(*session_, OnProofVerifyDetailsAvailable(testing::_));
stream()->CryptoConnect();
QuicConfig config;
crypto_test_utils::HandshakeWithFakeServer(
&config, server_crypto_config_.get(), &server_helper_, &alarm_factory_,
connection_, stream(), AlpnForVersion(connection_->version()));
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
}
TEST_P(TlsClientHandshakerTest, HandshakeWithAsyncProofVerifier) {
InitializeFakeServer();
TestProofVerifier* proof_verifier =
static_cast<TestProofVerifier*>(crypto_config_->proof_verifier());
proof_verifier->Activate();
stream()->CryptoConnect();
std::pair<size_t, size_t> moved_message_counts =
crypto_test_utils::AdvanceHandshake(
connection_, stream(), 0, server_connection_, server_stream(), 0);
ASSERT_EQ(proof_verifier->NumPendingCallbacks(), 1u);
proof_verifier->InvokePendingCallback(0);
crypto_test_utils::AdvanceHandshake(
connection_, stream(), moved_message_counts.first, server_connection_,
server_stream(), moved_message_counts.second);
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
}
TEST_P(TlsClientHandshakerTest, Resumption) {
SSL_CTX_set_early_data_enabled(server_crypto_config_->ssl_ctx(), false);
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->ResumptionAttempted());
EXPECT_FALSE(stream()->IsResumption());
CreateConnection();
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->ResumptionAttempted());
EXPECT_TRUE(stream()->IsResumption());
}
TEST_P(TlsClientHandshakerTest, ResumptionRejection) {
SSL_CTX_set_early_data_enabled(server_crypto_config_->ssl_ctx(), false);
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->ResumptionAttempted());
EXPECT_FALSE(stream()->IsResumption());
SSL_CTX_set_options(server_crypto_config_->ssl_ctx(), SSL_OP_NO_TICKET);
CreateConnection();
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->ResumptionAttempted());
EXPECT_FALSE(stream()->IsResumption());
EXPECT_FALSE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(),
ssl_early_data_unsupported_for_session);
}
TEST_P(TlsClientHandshakerTest, ZeroRttResumption) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
CreateConnection();
EXPECT_CALL(*session_, OnConfigNegotiated()).Times(2);
EXPECT_CALL(*connection_, SendCryptoData(_, _, _))
.Times(testing::AnyNumber());
stream()->CryptoConnect();
EXPECT_TRUE(stream()->encryption_established());
EXPECT_NE(stream()->crypto_negotiated_params().cipher_suite, 0);
EXPECT_NE(stream()->crypto_negotiated_params().key_exchange_group, 0);
EXPECT_NE(stream()->crypto_negotiated_params().peer_signature_algorithm, 0);
QuicConfig config;
crypto_test_utils::HandshakeWithFakeServer(
&config, server_crypto_config_.get(), &server_helper_, &alarm_factory_,
connection_, stream(), AlpnForVersion(connection_->version()));
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->IsResumption());
EXPECT_TRUE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_accepted);
}
TEST_P(TlsClientHandshakerTest, ZeroRttResumptionWithAyncProofVerifier) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
CreateConnection();
InitializeFakeServer();
EXPECT_CALL(*session_, OnConfigNegotiated());
EXPECT_CALL(*connection_, SendCryptoData(_, _, _))
.Times(testing::AnyNumber());
TestProofVerifier* proof_verifier =
static_cast<TestProofVerifier*>(crypto_config_->proof_verifier());
proof_verifier->Activate();
stream()->CryptoConnect();
ASSERT_EQ(proof_verifier->NumPendingCallbacks(), 1u);
crypto_test_utils::AdvanceHandshake(connection_, stream(), 0,
server_connection_, server_stream(), 0);
EXPECT_FALSE(stream()->one_rtt_keys_available());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
proof_verifier->InvokePendingCallback(0);
QuicFramer* framer = QuicConnectionPeer::GetFramer(connection_);
EXPECT_NE(nullptr,
QuicFramerPeer::GetEncrypter(framer, ENCRYPTION_HANDSHAKE));
}
TEST_P(TlsClientHandshakerTest, ZeroRttRejection) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
SSL_CTX_set_early_data_enabled(server_crypto_config_->ssl_ctx(), false);
CreateConnection();
EXPECT_CALL(*session_, OnConfigNegotiated()).Times(2);
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_INITIAL, NOT_RETRANSMISSION));
if (VersionUsesHttp3(session_->transport_version())) {
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_ZERO_RTT, NOT_RETRANSMISSION));
}
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_HANDSHAKE, NOT_RETRANSMISSION));
if (VersionUsesHttp3(session_->transport_version())) {
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_FORWARD_SECURE, LOSS_RETRANSMISSION));
}
CompleteCryptoHandshake();
QuicFramer* framer = QuicConnectionPeer::GetFramer(connection_);
EXPECT_EQ(nullptr, QuicFramerPeer::GetEncrypter(framer, ENCRYPTION_ZERO_RTT));
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->IsResumption());
EXPECT_FALSE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_peer_declined);
}
TEST_P(TlsClientHandshakerTest, ZeroRttAndResumptionRejection) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
SSL_CTX_set_options(server_crypto_config_->ssl_ctx(), SSL_OP_NO_TICKET);
CreateConnection();
EXPECT_CALL(*session_, OnConfigNegotiated()).Times(2);
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_INITIAL, NOT_RETRANSMISSION));
if (VersionUsesHttp3(session_->transport_version())) {
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_ZERO_RTT, NOT_RETRANSMISSION));
}
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_HANDSHAKE, NOT_RETRANSMISSION));
if (VersionUsesHttp3(session_->transport_version())) {
EXPECT_CALL(*connection_,
OnPacketSent(ENCRYPTION_FORWARD_SECURE, LOSS_RETRANSMISSION));
}
CompleteCryptoHandshake();
QuicFramer* framer = QuicConnectionPeer::GetFramer(connection_);
EXPECT_EQ(nullptr, QuicFramerPeer::GetEncrypter(framer, ENCRYPTION_ZERO_RTT));
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
EXPECT_FALSE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_session_not_resumed);
}
TEST_P(TlsClientHandshakerTest, ClientSendsNoSNI) {
server_id_ = QuicServerId("", 443);
crypto_config_.reset(new QuicCryptoClientConfig(
std::make_unique<FakeProofVerifier>(), nullptr));
CreateConnection();
InitializeFakeServer();
stream()->CryptoConnect();
crypto_test_utils::CommunicateHandshakeMessages(
connection_, stream(), server_connection_, server_stream());
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_EQ(server_stream()->crypto_negotiated_params().sni, "");
}
TEST_P(TlsClientHandshakerTest, ClientSendingTooManyALPNs) {
std::string long_alpn(250, 'A');
EXPECT_QUIC_BUG(
{
EXPECT_CALL(*session_, GetAlpnsToOffer())
.WillOnce(testing::Return(std::vector<std::string>({
long_alpn + "1",
long_alpn + "2",
long_alpn + "3",
long_alpn + "4",
long_alpn + "5",
long_alpn + "6",
long_alpn + "7",
long_alpn + "8",
})));
stream()->CryptoConnect();
},
"Failed to set ALPN");
}
TEST_P(TlsClientHandshakerTest, ServerRequiresCustomALPN) {
InitializeFakeServer();
const std::string kTestAlpn = "An ALPN That Client Did Not Offer";
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillOnce([kTestAlpn](const std::vector<absl::string_view>& alpns) {
return std::find(alpns.cbegin(), alpns.cend(), kTestAlpn);
});
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_HANDSHAKE_FAILED,
static_cast<QuicIetfTransportErrorCodes>(
CRYPTO_ERROR_FIRST + 120),
"TLS handshake failure (ENCRYPTION_INITIAL) 120: "
"no application protocol",
_));
stream()->CryptoConnect();
crypto_test_utils::AdvanceHandshake(connection_, stream(), 0,
server_connection_, server_stream(), 0);
EXPECT_FALSE(stream()->one_rtt_keys_available());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->encryption_established());
EXPECT_FALSE(server_stream()->encryption_established());
}
TEST_P(TlsClientHandshakerTest, ZeroRTTNotAttemptedOnALPNChange) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->IsResumption());
CreateConnection();
const std::string kTestAlpn = "Test ALPN";
EXPECT_CALL(*session_, GetAlpnsToOffer())
.WillRepeatedly(testing::Return(std::vector<std::string>({kTestAlpn})));
EXPECT_CALL(*session_, OnConfigNegotiated()).Times(1);
CompleteCryptoHandshakeWithServerALPN(kTestAlpn);
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_FALSE(stream()->EarlyDataAccepted());
EXPECT_EQ(stream()->EarlyDataReason(), ssl_early_data_alpn_mismatch);
}
TEST_P(TlsClientHandshakerTest, InvalidSNI) {
server_id_ = QuicServerId("invalid!.example.com", 443);
crypto_config_.reset(new QuicCryptoClientConfig(
std::make_unique<FakeProofVerifier>(), nullptr));
CreateConnection();
InitializeFakeServer();
stream()->CryptoConnect();
crypto_test_utils::CommunicateHandshakeMessages(
connection_, stream(), server_connection_, server_stream());
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_EQ(server_stream()->crypto_negotiated_params().sni, "");
}
TEST_P(TlsClientHandshakerTest, BadTransportParams) {
if (!connection_->version().UsesHttp3()) {
return;
}
CompleteCryptoHandshake();
CreateConnection();
stream()->CryptoConnect();
auto* id_manager = QuicSessionPeer::ietf_streamid_manager(session_.get());
EXPECT_EQ(kDefaultMaxStreamsPerConnection,
id_manager->max_outgoing_bidirectional_streams());
QuicConfig config;
config.SetMaxBidirectionalStreamsToSend(
config.GetMaxBidirectionalStreamsToSend() - 1);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_ZERO_RTT_REJECTION_LIMIT_REDUCED, _, _))
.WillOnce(testing::Invoke(connection_,
&MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, CloseConnection(QUIC_HANDSHAKE_FAILED, _, _));
crypto_test_utils::HandshakeWithFakeServer(
&config, server_crypto_config_.get(), &server_helper_, &alarm_factory_,
connection_, stream(), AlpnForVersion(connection_->version()));
}
TEST_P(TlsClientHandshakerTest, ECH) {
ssl_config_.emplace();
bssl::UniquePtr<SSL_ECH_KEYS> ech_keys =
MakeTestEchKeys("public-name.example", 64,
&ssl_config_->ech_config_list);
ASSERT_TRUE(ech_keys);
ASSERT_TRUE(
SSL_CTX_set1_ech_keys(server_crypto_config_->ssl_ctx(), ech_keys.get()));
CreateConnection();
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->crypto_negotiated_params().encrypted_client_hello);
}
TEST_P(TlsClientHandshakerTest, ECHWithConfigAndGREASE) {
ssl_config_.emplace();
bssl::UniquePtr<SSL_ECH_KEYS> ech_keys =
MakeTestEchKeys("public-name.example", 64,
&ssl_config_->ech_config_list);
ASSERT_TRUE(ech_keys);
ssl_config_->ech_grease_enabled = true;
ASSERT_TRUE(
SSL_CTX_set1_ech_keys(server_crypto_config_->ssl_ctx(), ech_keys.get()));
CreateConnection();
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, stream()->handshake_protocol());
EXPECT_TRUE(stream()->encryption_established());
EXPECT_TRUE(stream()->one_rtt_keys_available());
EXPECT_TRUE(stream()->crypto_negotiated_params().encrypted_client_hello);
}
TEST_P(TlsClientHandshakerTest, ECHInvalidConfig) {
ssl_config_.emplace();
ssl_config_->ech_config_list = "invalid config";
CreateConnection();
EXPECT_CALL(*connection_, CloseConnection(QUIC_HANDSHAKE_FAILED, _, _));
stream()->CryptoConnect();
}
TEST_P(TlsClientHandshakerTest, ECHWrongKeys) {
ssl_config_.emplace();
bssl::UniquePtr<SSL_ECH_KEYS> ech_keys1 =
MakeTestEchKeys("public-name.example", 64,
&ssl_config_->ech_config_list);
ASSERT_TRUE(ech_keys1);
std::string ech_config_list2;
bssl::UniquePtr<SSL_ECH_KEYS> ech_keys2 = MakeTestEchKeys(
"public-name.example", 64, &ech_config_list2);
ASSERT_TRUE(ech_keys2);
ASSERT_TRUE(
SSL_CTX_set1_ech_keys(server_crypto_config_->ssl_ctx(), ech_keys2.get()));
CreateConnection();
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HANDSHAKE_ |
266 | cpp | google/quiche | quic_stream_sequencer | quiche/quic/core/quic_stream_sequencer.cc | quiche/quic/core/quic_stream_sequencer_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_SEQUENCER_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_SEQUENCER_H_
#include <cstddef>
#include <map>
#include <string>
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_sequencer_buffer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicStreamSequencerPeer;
}
class QUICHE_EXPORT QuicStreamSequencer final {
public:
class QUICHE_EXPORT StreamInterface {
public:
virtual ~StreamInterface() = default;
virtual void OnDataAvailable() = 0;
virtual void OnFinRead() = 0;
virtual void AddBytesConsumed(QuicByteCount bytes) = 0;
virtual void ResetWithError(QuicResetStreamError error) = 0;
virtual void OnUnrecoverableError(QuicErrorCode error,
const std::string& details) = 0;
virtual void OnUnrecoverableError(QuicErrorCode error,
QuicIetfTransportErrorCodes ietf_error,
const std::string& details) = 0;
virtual QuicStreamId id() const = 0;
virtual ParsedQuicVersion version() const = 0;
};
explicit QuicStreamSequencer(StreamInterface* quic_stream);
QuicStreamSequencer(const QuicStreamSequencer&) = delete;
QuicStreamSequencer(QuicStreamSequencer&&) = default;
QuicStreamSequencer& operator=(const QuicStreamSequencer&) = delete;
QuicStreamSequencer& operator=(QuicStreamSequencer&&) = default;
~QuicStreamSequencer();
void OnStreamFrame(const QuicStreamFrame& frame);
void OnCryptoFrame(const QuicCryptoFrame& frame);
int GetReadableRegions(iovec* iov, size_t iov_len) const;
bool GetReadableRegion(iovec* iov) const;
bool PeekRegion(QuicStreamOffset offset, iovec* iov) const;
size_t Readv(const struct iovec* iov, size_t iov_len);
void MarkConsumed(size_t num_bytes);
void Read(std::string* buffer);
bool HasBytesToRead() const;
size_t ReadableBytes() const;
bool IsClosed() const;
void SetUnblocked();
void SetBlockedUntilFlush();
void StopReading();
void ReleaseBuffer();
void ReleaseBufferIfEmpty();
size_t NumBytesBuffered() const;
QuicStreamOffset NumBytesConsumed() const;
bool IsAllDataAvailable() const;
QuicStreamOffset close_offset() const { return close_offset_; }
int num_frames_received() const { return num_frames_received_; }
int num_duplicate_frames_received() const {
return num_duplicate_frames_received_;
}
bool ignore_read_data() const { return ignore_read_data_; }
void set_level_triggered(bool level_triggered) {
level_triggered_ = level_triggered;
}
bool level_triggered() const { return level_triggered_; }
void set_stream(StreamInterface* stream) { stream_ = stream; }
std::string DebugString() const;
private:
friend class test::QuicStreamSequencerPeer;
void FlushBufferedFrames();
bool CloseStreamAtOffset(QuicStreamOffset offset);
void MaybeCloseStream();
void OnFrameData(QuicStreamOffset byte_offset, size_t data_len,
const char* data_buffer);
StreamInterface* stream_;
QuicStreamSequencerBuffer buffered_frames_;
QuicStreamOffset highest_offset_;
QuicStreamOffset close_offset_;
bool blocked_;
int num_frames_received_;
int num_duplicate_frames_received_;
bool ignore_read_data_;
bool level_triggered_;
};
}
#endif
#include "quiche/quic/core/quic_stream_sequencer.h"
#include <algorithm>
#include <cstddef>
#include <limits>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_stream_sequencer_buffer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_stack_trace.h"
namespace quic {
QuicStreamSequencer::QuicStreamSequencer(StreamInterface* quic_stream)
: stream_(quic_stream),
buffered_frames_(kStreamReceiveWindowLimit),
highest_offset_(0),
close_offset_(std::numeric_limits<QuicStreamOffset>::max()),
blocked_(false),
num_frames_received_(0),
num_duplicate_frames_received_(0),
ignore_read_data_(false),
level_triggered_(false) {}
QuicStreamSequencer::~QuicStreamSequencer() {
if (stream_ == nullptr) {
QUIC_BUG(quic_bug_10858_1) << "Double free'ing QuicStreamSequencer at "
<< this << ". " << QuicStackTrace();
}
stream_ = nullptr;
}
void QuicStreamSequencer::OnStreamFrame(const QuicStreamFrame& frame) {
QUICHE_DCHECK_LE(frame.offset + frame.data_length, close_offset_);
++num_frames_received_;
const QuicStreamOffset byte_offset = frame.offset;
const size_t data_len = frame.data_length;
if (frame.fin &&
(!CloseStreamAtOffset(frame.offset + data_len) || data_len == 0)) {
return;
}
if (stream_->version().HasIetfQuicFrames() && data_len == 0) {
QUICHE_DCHECK(!frame.fin);
return;
}
OnFrameData(byte_offset, data_len, frame.data_buffer);
}
void QuicStreamSequencer::OnCryptoFrame(const QuicCryptoFrame& frame) {
++num_frames_received_;
if (frame.data_length == 0) {
return;
}
OnFrameData(frame.offset, frame.data_length, frame.data_buffer);
}
void QuicStreamSequencer::OnFrameData(QuicStreamOffset byte_offset,
size_t data_len,
const char* data_buffer) {
highest_offset_ = std::max(highest_offset_, byte_offset + data_len);
const size_t previous_readable_bytes = buffered_frames_.ReadableBytes();
size_t bytes_written;
std::string error_details;
QuicErrorCode result = buffered_frames_.OnStreamData(
byte_offset, absl::string_view(data_buffer, data_len), &bytes_written,
&error_details);
if (result != QUIC_NO_ERROR) {
std::string details =
absl::StrCat("Stream ", stream_->id(), ": ",
QuicErrorCodeToString(result), ": ", error_details);
QUIC_LOG_FIRST_N(WARNING, 50) << QuicErrorCodeToString(result);
QUIC_LOG_FIRST_N(WARNING, 50) << details;
stream_->OnUnrecoverableError(result, details);
return;
}
if (bytes_written == 0) {
++num_duplicate_frames_received_;
return;
}
if (blocked_) {
return;
}
if (level_triggered_) {
if (buffered_frames_.ReadableBytes() > previous_readable_bytes) {
if (ignore_read_data_) {
FlushBufferedFrames();
} else {
stream_->OnDataAvailable();
}
}
return;
}
const bool stream_unblocked =
previous_readable_bytes == 0 && buffered_frames_.ReadableBytes() > 0;
if (stream_unblocked) {
if (ignore_read_data_) {
FlushBufferedFrames();
} else {
stream_->OnDataAvailable();
}
}
}
bool QuicStreamSequencer::CloseStreamAtOffset(QuicStreamOffset offset) {
const QuicStreamOffset kMaxOffset =
std::numeric_limits<QuicStreamOffset>::max();
if (close_offset_ != kMaxOffset && offset != close_offset_) {
stream_->OnUnrecoverableError(
QUIC_STREAM_SEQUENCER_INVALID_STATE,
absl::StrCat(
"Stream ", stream_->id(), " received new final offset: ", offset,
", which is different from close offset: ", close_offset_));
return false;
}
if (offset < highest_offset_) {
stream_->OnUnrecoverableError(
QUIC_STREAM_SEQUENCER_INVALID_STATE,
absl::StrCat(
"Stream ", stream_->id(), " received fin with offset: ", offset,
", which reduces current highest offset: ", highest_offset_));
return false;
}
close_offset_ = offset;
MaybeCloseStream();
return true;
}
void QuicStreamSequencer::MaybeCloseStream() {
if (blocked_ || !IsClosed()) {
return;
}
QUIC_DVLOG(1) << "Passing up termination, as we've processed "
<< buffered_frames_.BytesConsumed() << " of " << close_offset_
<< " bytes.";
if (ignore_read_data_) {
stream_->OnFinRead();
} else {
stream_->OnDataAvailable();
}
buffered_frames_.Clear();
}
int QuicStreamSequencer::GetReadableRegions(iovec* iov, size_t iov_len) const {
QUICHE_DCHECK(!blocked_);
return buffered_frames_.GetReadableRegions(iov, iov_len);
}
bool QuicStreamSequencer::GetReadableRegion(iovec* iov) const {
QUICHE_DCHECK(!blocked_);
return buffered_frames_.GetReadableRegion(iov);
}
bool QuicStreamSequencer::PeekRegion(QuicStreamOffset offset,
iovec* iov) const {
QUICHE_DCHECK(!blocked_);
return buffered_frames_.PeekRegion(offset, iov);
}
void QuicStreamSequencer::Read(std::string* buffer) {
QUICHE_DCHECK(!blocked_);
buffer->resize(buffer->size() + ReadableBytes());
iovec iov;
iov.iov_len = ReadableBytes();
iov.iov_base = &(*buffer)[buffer->size() - iov.iov_len];
Readv(&iov, 1);
}
size_t QuicStreamSequencer::Readv(const struct iovec* iov, size_t iov_len) {
QUICHE_DCHECK(!blocked_);
std::string error_details;
size_t bytes_read;
QuicErrorCode read_error =
buffered_frames_.Readv(iov, iov_len, &bytes_read, &error_details);
if (read_error != QUIC_NO_ERROR) {
std::string details =
absl::StrCat("Stream ", stream_->id(), ": ", error_details);
stream_->OnUnrecoverableError(read_error, details);
return bytes_read;
}
stream_->AddBytesConsumed(bytes_read);
return bytes_read;
}
bool QuicStreamSequencer::HasBytesToRead() const {
return buffered_frames_.HasBytesToRead();
}
size_t QuicStreamSequencer::ReadableBytes() const {
return buffered_frames_.ReadableBytes();
}
bool QuicStreamSequencer::IsClosed() const {
return buffered_frames_.BytesConsumed() >= close_offset_;
}
void QuicStreamSequencer::MarkConsumed(size_t num_bytes_consumed) {
QUICHE_DCHECK(!blocked_);
bool result = buffered_frames_.MarkConsumed(num_bytes_consumed);
if (!result) {
QUIC_BUG(quic_bug_10858_2)
<< "Invalid argument to MarkConsumed."
<< " expect to consume: " << num_bytes_consumed
<< ", but not enough bytes available. " << DebugString();
stream_->ResetWithError(
QuicResetStreamError::FromInternal(QUIC_ERROR_PROCESSING_STREAM));
return;
}
stream_->AddBytesConsumed(num_bytes_consumed);
}
void QuicStreamSequencer::SetBlockedUntilFlush() { blocked_ = true; }
void QuicStreamSequencer::SetUnblocked() {
blocked_ = false;
if (IsClosed() || HasBytesToRead()) {
stream_->OnDataAvailable();
}
}
void QuicStreamSequencer::StopReading() {
if (ignore_read_data_) {
return;
}
ignore_read_data_ = true;
FlushBufferedFrames();
}
void QuicStreamSequencer::ReleaseBuffer() {
buffered_frames_.ReleaseWholeBuffer();
}
void QuicStreamSequencer::ReleaseBufferIfEmpty() {
if (buffered_frames_.Empty()) {
buffered_frames_.ReleaseWholeBuffer();
}
}
void QuicStreamSequencer::FlushBufferedFrames() {
QUICHE_DCHECK(ignore_read_data_);
size_t bytes_flushed = buffered_frames_.FlushBufferedFrames();
QUIC_DVLOG(1) << "Flushing buffered data at offset "
<< buffered_frames_.BytesConsumed() << " length "
<< bytes_flushed << " for stream " << stream_->id();
stream_->AddBytesConsumed(bytes_flushed);
MaybeCloseStream();
}
size_t QuicStreamSequencer::NumBytesBuffered() const {
return buffered_frames_.BytesBuffered();
}
QuicStreamOffset QuicStreamSequencer::NumBytesConsumed() const {
return buffered_frames_.BytesConsumed();
}
bool QuicStreamSequencer::IsAllDataAvailable() const {
QUICHE_DCHECK_LE(NumBytesConsumed() + NumBytesBuffered(), close_offset_);
return NumBytesConsumed() + NumBytesBuffered() >= close_offset_;
}
std::string QuicStreamSequencer::DebugString() const {
return absl::StrCat(
"QuicStreamSequencer: bytes buffered: ", NumBytesBuffered(),
"\n bytes consumed: ", NumBytesConsumed(),
"\n first missing byte: ", buffered_frames_.FirstMissingByte(),
"\n next expected byte: ", buffered_frames_.NextExpectedByte(),
"\n received frames: ", buffered_frames_.ReceivedFramesDebugString(),
"\n has bytes to read: ", HasBytesToRead() ? "true" : "false",
"\n frames received: ", num_frames_received(),
"\n close offset bytes: ", close_offset_,
"\n is closed: ", IsClosed() ? "true" : "false");
}
} | #include "quiche/quic/core/quic_stream_sequencer.h"
#include <algorithm>
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_stream_sequencer_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::AnyNumber;
using testing::InSequence;
namespace quic {
namespace test {
class MockStream : public QuicStreamSequencer::StreamInterface {
public:
MOCK_METHOD(void, OnFinRead, (), (override));
MOCK_METHOD(void, OnDataAvailable, (), (override));
MOCK_METHOD(void, OnUnrecoverableError,
(QuicErrorCode error, const std::string& details), (override));
MOCK_METHOD(void, OnUnrecoverableError,
(QuicErrorCode error, QuicIetfTransportErrorCodes ietf_error,
const std::string& details),
(override));
MOCK_METHOD(void, ResetWithError, (QuicResetStreamError error), (override));
MOCK_METHOD(void, AddBytesConsumed, (QuicByteCount bytes), (override));
QuicStreamId id() const override { return 1; }
ParsedQuicVersion version() const override {
return CurrentSupportedVersions()[0];
}
};
namespace {
static const char kPayload[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
class QuicStreamSequencerTest : public QuicTest {
public:
void ConsumeData(size_t num_bytes) {
char buffer[1024];
ASSERT_GT(ABSL_ARRAYSIZE(buffer), num_bytes);
struct iovec iov;
iov.iov_base = buffer;
iov.iov_len = num_bytes;
ASSERT_EQ(num_bytes, sequencer_->Readv(&iov, 1));
}
protected:
QuicStreamSequencerTest()
: stream_(), sequencer_(new QuicStreamSequencer(&stream_)) {}
bool VerifyReadableRegion(const std::vector<std::string>& expected) {
return VerifyReadableRegion(*sequencer_, expected);
}
bool VerifyReadableRegions(const std::vector<std::string>& expected) {
return VerifyReadableRegions(*sequencer_, expected);
}
bool VerifyIovecs(iovec* iovecs, size_t num_iovecs,
const std::vector<std::string>& expected) {
return VerifyIovecs(*sequencer_, iovecs, num_iovecs, expected);
}
bool VerifyReadableRegion(const QuicStreamSequencer& sequencer,
const std::vector<std::string>& expected) {
iovec iovecs[1];
if (sequencer.GetReadableRegions(iovecs, 1)) {
return (VerifyIovecs(sequencer, iovecs, 1,
std::vector<std::string>{expected[0]}));
}
return false;
}
bool VerifyReadableRegions(const QuicStreamSequencer& sequencer,
const std::vector<std::string>& expected) {
iovec iovecs[5];
size_t num_iovecs =
sequencer.GetReadableRegions(iovecs, ABSL_ARRAYSIZE(iovecs));
return VerifyReadableRegion(sequencer, expected) &&
VerifyIovecs(sequencer, iovecs, num_iovecs, expected);
}
bool VerifyIovecs(const QuicStreamSequencer& , iovec* iovecs,
size_t num_iovecs,
const std::vector<std::string>& expected) {
int start_position = 0;
for (size_t i = 0; i < num_iovecs; ++i) {
if (!VerifyIovec(iovecs[i],
expected[0].substr(start_position, iovecs[i].iov_len))) {
return false;
}
start_position += iovecs[i].iov_len;
}
return true;
}
bool VerifyIovec(const iovec& iovec, absl::string_view expected) {
if (iovec.iov_len != expected.length()) {
QUIC_LOG(ERROR) << "Invalid length: " << iovec.iov_len << " vs "
<< expected.length();
return false;
}
if (memcmp(iovec.iov_base, expected.data(), expected.length()) != 0) {
QUIC_LOG(ERROR) << "Invalid data: " << static_cast<char*>(iovec.iov_base)
<< " vs " << expected;
return false;
}
return true;
}
void OnFinFrame(QuicStreamOffset byte_offset, const char* data) {
QuicStreamFrame frame;
frame.stream_id = 1;
frame.offset = byte_offset;
frame.data_buffer = data;
frame.data_length = strlen(data);
frame.fin = true;
sequencer_->OnStreamFrame(frame);
}
void OnFrame(QuicStreamOffset byte_offset, const char* data) {
QuicStreamFrame frame;
frame.stream_id = 1;
frame.offset = byte_offset;
frame.data_buffer = data;
frame.data_length = strlen(data);
frame.fin = false;
sequencer_->OnStreamFrame(frame);
}
size_t NumBufferedBytes() {
return QuicStreamSequencerPeer::GetNumBufferedBytes(sequencer_.get());
}
testing::StrictMock<MockStream> stream_;
std::unique_ptr<QuicStreamSequencer> sequencer_;
};
TEST_F(QuicStreamSequencerTest, RejectOldFrame) {
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
OnFrame(0, "abc");
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(3u, sequencer_->NumBytesConsumed());
OnFrame(0, "def");
EXPECT_EQ(0u, NumBufferedBytes());
}
TEST_F(QuicStreamSequencerTest, RejectBufferedFrame) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
OnFrame(0, "def");
EXPECT_EQ(3u, NumBufferedBytes());
}
TEST_F(QuicStreamSequencerTest, FullFrameConsumed) {
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
OnFrame(0, "abc");
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(3u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, BlockedThenFullFrameConsumed) {
sequencer_->SetBlockedUntilFlush();
OnFrame(0, "abc");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
sequencer_->SetUnblocked();
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(3u, sequencer_->NumBytesConsumed());
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
EXPECT_FALSE(sequencer_->IsClosed());
EXPECT_FALSE(sequencer_->IsAllDataAvailable());
OnFinFrame(3, "def");
EXPECT_TRUE(sequencer_->IsClosed());
EXPECT_TRUE(sequencer_->IsAllDataAvailable());
}
TEST_F(QuicStreamSequencerTest, BlockedThenFullFrameAndFinConsumed) {
sequencer_->SetBlockedUntilFlush();
OnFinFrame(0, "abc");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
EXPECT_FALSE(sequencer_->IsClosed());
EXPECT_TRUE(sequencer_->IsAllDataAvailable());
sequencer_->SetUnblocked();
EXPECT_TRUE(sequencer_->IsClosed());
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(3u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, EmptyFrame) {
if (!stream_.version().HasIetfQuicFrames()) {
EXPECT_CALL(stream_,
OnUnrecoverableError(QUIC_EMPTY_STREAM_FRAME_NO_FIN, _));
}
OnFrame(0, "");
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, EmptyFinFrame) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFinFrame(0, "");
EXPECT_EQ(0u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
EXPECT_TRUE(sequencer_->IsAllDataAvailable());
}
TEST_F(QuicStreamSequencerTest, PartialFrameConsumed) {
EXPECT_CALL(stream_, AddBytesConsumed(2));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(2);
}));
OnFrame(0, "abc");
EXPECT_EQ(1u, NumBufferedBytes());
EXPECT_EQ(2u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, NextxFrameNotConsumed) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, FutureFrameNotProcessed) {
OnFrame(3, "abc");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
}
TEST_F(QuicStreamSequencerTest, OutOfOrderFrameProcessed) {
OnFrame(6, "ghi");
EXPECT_EQ(3u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
EXPECT_EQ(3u, sequencer_->NumBytesBuffered());
OnFrame(3, "def");
EXPECT_EQ(6u, NumBufferedBytes());
EXPECT_EQ(0u, sequencer_->NumBytesConsumed());
EXPECT_EQ(6u, sequencer_->NumBytesBuffered());
EXPECT_CALL(stream_, AddBytesConsumed(9));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(9);
}));
OnFrame(0, "abc");
EXPECT_EQ(9u, sequencer_->NumBytesConsumed());
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
EXPECT_EQ(0u, NumBufferedBytes());
}
TEST_F(QuicStreamSequencerTest, BasicHalfCloseOrdered) {
InSequence s;
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
EXPECT_CALL(stream_, AddBytesConsumed(3));
OnFinFrame(0, "abc");
EXPECT_EQ(3u, QuicStreamSequencerPeer::GetCloseOffset(sequencer_.get()));
}
TEST_F(QuicStreamSequencerTest, BasicHalfCloseUnorderedWithFlush) {
OnFinFrame(6, "");
EXPECT_EQ(6u, QuicStreamSequencerPeer::GetCloseOffset(sequencer_.get()));
OnFrame(3, "def");
EXPECT_CALL(stream_, AddBytesConsumed(6));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(6);
}));
EXPECT_FALSE(sequencer_->IsClosed());
OnFrame(0, "abc");
EXPECT_TRUE(sequencer_->IsClosed());
}
TEST_F(QuicStreamSequencerTest, BasicHalfUnordered) {
OnFinFrame(3, "");
EXPECT_EQ(3u, QuicStreamSequencerPeer::GetCloseOffset(sequencer_.get()));
EXPECT_CALL(stream_, AddBytesConsumed(3));
EXPECT_CALL(stream_, OnDataAvailable()).WillOnce(testing::Invoke([this]() {
ConsumeData(3);
}));
EXPECT_FALSE(sequencer_->IsClosed());
OnFrame(0, "abc");
EXPECT_TRUE(sequencer_->IsClosed());
}
TEST_F(QuicStreamSequencerTest, TerminateWithReadv) {
char buffer[3];
OnFinFrame(3, "");
EXPECT_EQ(3u, QuicStreamSequencerPeer::GetCloseOffset(sequencer_.get()));
EXPECT_FALSE(sequencer_->IsClosed());
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
EXPECT_CALL(stream_, AddBytesConsumed(3));
iovec iov = {&buffer[0], 3};
int bytes_read = sequencer_->Readv(&iov, 1);
EXPECT_EQ(3, bytes_read);
EXPECT_TRUE(sequencer_->IsClosed());
}
TEST_F(QuicStreamSequencerTest, MultipleOffsets) {
OnFinFrame(3, "");
EXPECT_EQ(3u, QuicStreamSequencerPeer::GetCloseOffset(sequencer_.get()));
EXPECT_CALL(stream_, OnUnrecoverableError(
QUIC_STREAM_SEQUENCER_INVALID_STATE,
"Stream 1 received new final offset: 1, which is "
"different from close offset: 3"));
OnFinFrame(1, "");
}
class QuicSequencerRandomTest : public QuicStreamSequencerTest {
public:
using Frame = std::pair<int, std::string>;
using FrameList = std::vector<Frame>;
void CreateFrames() {
int payload_size = ABSL_ARRAYSIZE(kPayload) - 1;
int remaining_payload = payload_size;
while (remaining_payload != 0) {
int size = std::min(OneToN(6), remaining_payload);
int index = payload_size - remaining_payload;
list_.push_back(
std::make_pair(index, std::string(kPayload + index, size)));
remaining_payload -= size;
}
}
QuicSequencerRandomTest() {
uint64_t seed = QuicRandom::GetInstance()->RandUint64();
QUIC_LOG(INFO) << "**** The current seed is " << seed << " ****";
random_.set_seed(seed);
CreateFrames();
}
int OneToN(int n) { return random_.RandUint64() % n + 1; }
void ReadAvailableData() {
char output[ABSL_ARRAYSIZE(kPayload) + 1];
iovec iov;
iov.iov_base = output;
iov.iov_len = ABSL_ARRAYSIZE(output);
int bytes_read = sequencer_->Readv(&iov, 1);
EXPECT_NE(0, bytes_read);
output_.append(output, bytes_read);
}
std::string output_;
std::string peeked_;
SimpleRandom random_;
FrameList list_;
};
TEST_F(QuicSequencerRandomTest, RandomFramesNoDroppingNoBackup) {
EXPECT_CALL(stream_, OnDataAvailable())
.Times(AnyNumber())
.WillRepeatedly(
Invoke(this, &QuicSequencerRandomTest::ReadAvailableData));
QuicByteCount total_bytes_consumed = 0;
EXPECT_CALL(stream_, AddBytesConsumed(_))
.Times(AnyNumber())
.WillRepeatedly(
testing::Invoke([&total_bytes_consumed](QuicByteCount bytes) {
total_bytes_consumed += bytes;
}));
while (!list_.empty()) {
int index = OneToN(list_.size()) - 1;
QUIC_LOG(ERROR) << "Sending index " << index << " " << list_[index].second;
OnFrame(list_[index].first, list_[index].second.data());
list_.erase(list_.begin() + index);
}
ASSERT_EQ(ABSL_ARRAYSIZE(kPayload) - 1, output_.size());
EXPECT_EQ(kPayload, output_);
EXPECT_EQ(ABSL_ARRAYSIZE(kPayload) - 1, total_bytes_consumed);
}
TEST_F(QuicSequencerRandomTest, RandomFramesNoDroppingBackup) {
char buffer[10];
iovec iov[2];
iov[0].iov_base = &buffer[0];
iov[0].iov_len = 5;
iov[1].iov_base = &buffer[5];
iov[1].iov_len = 5;
EXPECT_CALL(stream_, OnDataAvailable()).Times(AnyNumber());
QuicByteCount total_bytes_consumed = 0;
EXPECT_CALL(stream_, AddBytesConsumed(_))
.Times(AnyNumber())
.WillRepeatedly(
testing::Invoke([&total_bytes_consumed](QuicByteCount bytes) {
total_bytes_consumed += bytes;
}));
while (output_.size() != ABSL_ARRAYSIZE(kPayload) - 1) {
if (!list_.empty() && OneToN(2) == 1) {
int index = OneToN(list_.size()) - 1;
OnFrame(list_[index].first, list_[index].second.data());
list_.erase(list_.begin() + index);
} else {
bool has_bytes = sequencer_->HasBytesToRead();
iovec peek_iov[20];
int iovs_peeked = sequencer_->GetReadableRegions(peek_iov, 20);
if (has_bytes) {
ASSERT_LT(0, iovs_peeked);
ASSERT_TRUE(sequencer_->GetReadableRegion(peek_iov));
} else {
ASSERT_EQ(0, iovs_peeked);
ASSERT_FALSE(sequencer_->GetReadableRegion(peek_iov));
}
int total_bytes_to_peek = ABSL_ARRAYSIZE(buffer);
for (int i = 0; i < iovs_peeked; ++i) {
int bytes_to_peek =
std::min<int>(peek_iov[i].iov_len, total_bytes_to_peek);
peeked_.append(static_cast<char*>(peek_iov[i].iov_base), bytes_to_peek);
total_bytes_to_peek -= bytes_to_peek;
if (total_bytes_to_peek == 0) {
break;
}
}
int bytes_read = sequencer_->Readv(iov, 2);
output_.append(buffer, bytes_read);
ASSERT_EQ(output_.size(), peeked_.size());
}
}
EXPECT_EQ(std::string(kPayload), output_);
EXPECT_EQ(std::string(kPayload), peeked_);
EXPECT_EQ(ABSL_ARRAYSIZE(kPayload) - 1, total_bytes_consumed);
}
TEST_F(QuicStreamSequencerTest, MarkConsumed) {
InSequence s;
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
OnFrame(3, "def");
OnFrame(6, "ghi");
EXPECT_EQ(9u, sequencer_->NumBytesBuffered());
std::vector<std::string> expected = {"abcdefghi"};
ASSERT_TRUE(VerifyReadableRegions(expected));
EXPECT_CALL(stream_, AddBytesConsumed(1));
sequencer_->MarkConsumed(1);
std::vector<std::string> expected2 = {"bcdefghi"};
ASSERT_TRUE(VerifyReadableRegions(expected2));
EXPECT_EQ(8u, sequencer_->NumBytesBuffered());
EXPECT_CALL(stream_, AddBytesConsumed(2));
sequencer_->MarkConsumed(2);
std::vector<std::string> expected3 = {"defghi"};
ASSERT_TRUE(VerifyReadableRegions(expected3));
EXPECT_EQ(6u, sequencer_->NumBytesBuffered());
EXPECT_CALL(stream_, AddBytesConsumed(5));
sequencer_->MarkConsumed(5);
std::vector<std::string> expected4{"i"};
ASSERT_TRUE(VerifyReadableRegions(expected4));
EXPECT_EQ(1u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, MarkConsumedError) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
OnFrame(9, "jklmnopqrstuvwxyz");
std::vector<std::string> expected{"abc"};
ASSERT_TRUE(VerifyReadableRegions(expected));
EXPECT_QUIC_BUG(
{
EXPECT_CALL(stream_, ResetWithError(QuicResetStreamError::FromInternal(
QUIC_ERROR_PROCESSING_STREAM)));
sequencer_->MarkConsumed(4);
},
"Invalid argument to MarkConsumed."
" expect to consume: 4, but not enough bytes available.");
}
TEST_F(QuicStreamSequencerTest, MarkConsumedWithMissingPacket) {
InSequence s;
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
OnFrame(3, "def");
OnFrame(9, "jkl");
std::vector<std::string> expected = {"abcdef"};
ASSERT_TRUE(VerifyReadableRegions(expected));
EXPECT_CALL(stream_, AddBytesConsumed(6));
sequencer_->MarkConsumed(6);
}
TEST_F(QuicStreamSequencerTest, Move) {
InSequence s;
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0, "abc");
OnFrame(3, "def");
OnFrame(6, "ghi");
EXPECT_EQ(9u, sequencer_->NumBytesBuffered());
std::vector<std::string> expected = {"abcdefghi"};
ASSERT_TRUE(VerifyReadableRegions(expected));
QuicStreamSequencer sequencer2(std::move(*sequencer_));
ASSERT_TRUE(VerifyReadableRegions(sequencer2, expected));
}
TEST_F(QuicStreamSequencerTest, OverlappingFramesReceived) {
QuicStreamId id = 1;
QuicStreamFrame frame1(id, false, 1, absl::string_view("hello"));
sequencer_->OnStreamFrame(frame1);
QuicStreamFrame frame2(id, false, 2, absl::string_view("hello"));
EXPECT_CALL(stream_, OnUnrecoverableError(QUIC_OVERLAPPING_STREAM_DATA, _))
.Times(0);
sequencer_->OnStreamFrame(frame2);
}
TEST_F(QuicStreamSequencerTest, DataAvailableOnOverlappingFrames) {
QuicStreamId id = 1;
const std::string data(1000, '.');
QuicStreamFrame frame1(id, false, 0, data);
EXPECT_CALL(stream_, OnDataAvailable());
sequencer_->OnStreamFrame(frame1);
EXPECT_CALL(stream_, AddBytesConsumed(500));
QuicStreamSequencerTest::ConsumeData(500);
EXPECT_EQ(500u, sequencer_->NumBytesConsumed());
EXPECT_EQ(500u, sequencer_->NumBytesBuffered());
QuicStreamFrame frame2(id, false, 500, data);
EXPECT_CALL(stream_, OnDataAvailable()).Times(0);
sequencer_->OnStreamFrame(frame2);
EXPECT_CALL(stream_, AddBytesConsumed(1000));
QuicStreamSequencerTest::ConsumeData(1000);
EXPECT_EQ(1500u, sequencer_->NumBytesConsumed());
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
QuicStreamFrame frame3(id, false, 1498, absl::string_view("hello"));
EXPECT_CALL(stream_, OnDataAvailable());
sequencer_->OnStreamFrame(frame3);
EXPECT_CALL(stream_, AddBytesConsumed(3));
QuicStreamSequencerTest::ConsumeData(3);
EXPECT_EQ(1503u, sequencer_->NumBytesConsumed());
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
QuicStreamFrame frame4(id, false, 1000, absl::string_view("hello"));
EXPECT_CALL(stream_, OnDataAvailable()).Times(0);
sequencer_->OnStreamFrame(frame4);
EXPECT_EQ(1503u, sequencer_->NumBytesConsumed());
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, OnDataAvailableWhenReadableBytesIncrease) {
sequencer_->set_level_triggered(true);
QuicStreamId id = 1;
QuicStreamFrame frame1(id, false, 0, "hello");
EXPECT_CALL(stream_, OnDataAvailable());
sequencer_->OnStreamFrame(frame1);
EXPECT_EQ(5u, sequencer_->NumBytesBuffered());
QuicStreamFrame frame2(id, false, 5, " world");
EXPECT_CALL(stream_, OnDataAvailable());
sequencer_->OnStreamFrame(frame2);
EXPECT_EQ(11u, sequencer_->NumBytesBuffered());
QuicStreamFrame frame3(id, false, 5, "a");
EXPECT_CALL(stream_, OnDataAvailable()).Times(0);
sequencer_->OnStreamFrame(frame3);
EXPECT_EQ(11u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, ReadSingleFrame) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0u, "abc");
std::string actual;
EXPECT_CALL(stream_, AddBytesConsumed(3));
sequencer_->Read(&actual);
EXPECT_EQ("abc", actual);
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, ReadMultipleFramesWithMissingFrame) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0u, "abc");
OnFrame(3u, "def");
OnFrame(6u, "ghi");
OnFrame(10u, "xyz");
std::string actual;
EXPECT_CALL(stream_, AddBytesConsumed(9));
sequencer_->Read(&actual);
EXPECT_EQ("abcdefghi", actual);
EXPECT_EQ(3u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, ReadAndAppendToString) {
EXPECT_CALL(stream_, OnDataAvailable());
OnFrame(0u, "def");
OnFrame(3u, "ghi");
std::string actual = "abc";
EXPECT_CALL(stream_, AddBytesConsumed(6));
sequencer_->Read(&actual);
EXPECT_EQ("abcdefghi", actual);
EXPECT_EQ(0u, sequencer_->NumBytesBuffered());
}
TEST_F(QuicStreamSequencerTest, StopReading) {
EXPECT_CALL(stream_, OnDataAvailable()).Times(0);
EXPECT_CALL(stream_, OnFinRead());
EXPECT_CALL(stream_, AddBytesConsumed(0));
sequencer_->StopReading();
EXPECT_CALL(stream_, AddBytesConsumed(3));
OnFrame(0u, "abc");
EXPECT_CALL(stream_, AddBytesConsumed(3));
OnFrame(3u, "def");
EXPECT_CALL(stream_, AddBytesConsumed(3));
OnFinFrame(6u, "ghi");
}
TEST_F(QuicStreamSequencerTest, StopReadingWithLevelTriggered) {
EXPECT_CALL(stream_, AddBytesConsumed(0));
EXPECT_CALL(stream_, AddBytesConsumed(3)).Times(3);
EXPECT_CALL(stream_, OnDataAvailable()).Times(0);
EXPECT_CALL(stream_, OnFinRead());
sequencer_->set_level_triggered(true);
sequencer_->StopReading();
OnFrame(0u, "abc");
OnFrame(3u, "def");
OnFinFrame(6u, "ghi");
}
TEST_F(QuicStreamSequencerTest, CorruptFinFrames) {
EXPECT_CALL(stream_, OnUnrecoverableError(
QUIC_STREAM_SEQUENCER_INVALID_STATE,
"Stream 1 received new final offset: 1, which is "
"different from close offset: 2"));
OnFinFrame(2u, "");
OnFinFrame(0u, "a");
EXPECT_FALSE(sequencer_->HasBytesToRead());
}
TEST_F(QuicStreamSequencerTest, ReceiveFinLessThanHighestOffset) {
EXPECT_CALL(stream_, OnDataAvailable()).Times(1);
EXPECT_CALL(stream_, OnUnrecoverableError(
QUIC_STREAM_SEQUENCER_INVALID_STATE,
"Stream 1 received fin with offset: 0, which "
"reduces current highest offset: 3"));
OnFrame(0u, "abc");
OnFinFrame(0u, "");
}
}
}
} |
267 | cpp | google/quiche | web_transport_write_blocked_list | quiche/quic/core/web_transport_write_blocked_list.cc | quiche/quic/core/web_transport_write_blocked_list_test.cc | #ifndef QUICHE_QUIC_CORE_WEB_TRANSPORT_WRITE_BLOCKED_LIST_H_
#define QUICHE_QUIC_CORE_WEB_TRANSPORT_WRITE_BLOCKED_LIST_H_
#include <cstddef>
#include <limits>
#include <ostream>
#include <string>
#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_write_blocked_list.h"
#include "quiche/common/btree_scheduler.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/web_transport/web_transport.h"
namespace quic {
class QUICHE_EXPORT WebTransportWriteBlockedList
: public QuicWriteBlockedListInterface {
public:
static constexpr int kStaticUrgency = HttpStreamPriority::kMaximumUrgency + 1;
bool HasWriteBlockedDataStreams() const override;
size_t NumBlockedSpecialStreams() const override;
size_t NumBlockedStreams() const override;
void RegisterStream(QuicStreamId stream_id, bool is_static_stream,
const QuicStreamPriority& raw_priority) override;
void UnregisterStream(QuicStreamId stream_id) override;
void UpdateStreamPriority(QuicStreamId stream_id,
const QuicStreamPriority& new_priority) override;
bool ShouldYield(QuicStreamId id) const override;
QuicStreamPriority GetPriorityOfStream(QuicStreamId id) const override;
QuicStreamId PopFront() override;
void UpdateBytesForStream(QuicStreamId ,
size_t ) override {}
void AddStream(QuicStreamId stream_id) override;
bool IsStreamBlocked(QuicStreamId stream_id) const override;
size_t NumRegisteredGroups() const {
return web_transport_session_schedulers_.size();
}
size_t NumRegisteredHttpStreams() const {
return main_schedule_.NumRegistered() - NumRegisteredGroups();
}
private:
class QUICHE_EXPORT ScheduleKey {
public:
static ScheduleKey HttpStream(QuicStreamId id) {
return ScheduleKey(id, kNoSendGroup);
}
static ScheduleKey WebTransportSession(QuicStreamId session_id,
webtransport::SendGroupId group_id) {
return ScheduleKey(session_id, group_id);
}
static ScheduleKey WebTransportSession(const QuicStreamPriority& priority) {
return ScheduleKey(priority.web_transport().session_id,
priority.web_transport().send_group_number);
}
bool operator==(const ScheduleKey& other) const {
return stream_ == other.stream_ && group_ == other.group_;
}
bool operator!=(const ScheduleKey& other) const {
return !(*this == other);
}
template <typename H>
friend H AbslHashValue(H h, const ScheduleKey& key) {
return H::combine(std::move(h), key.stream_, key.group_);
}
bool has_group() const { return group_ != kNoSendGroup; }
quic::QuicStreamId stream() const { return stream_; }
std::string DebugString() const;
friend inline std::ostream& operator<<(std::ostream& os,
const ScheduleKey& key) {
os << key.DebugString();
return os;
}
private:
static constexpr webtransport::SendGroupId kNoSendGroup =
std::numeric_limits<webtransport::SendGroupId>::max();
explicit ScheduleKey(quic::QuicStreamId stream,
webtransport::SendGroupId group)
: stream_(stream), group_(group) {}
quic::QuicStreamId stream_;
webtransport::SendGroupId group_;
};
static constexpr int RemapUrgency(int urgency, bool is_http) {
return urgency * 2 + (is_http ? 1 : 0);
}
using Subscheduler =
quiche::BTreeScheduler<QuicStreamId, webtransport::SendOrder>;
quiche::BTreeScheduler<ScheduleKey, int> main_schedule_;
absl::flat_hash_map<QuicStreamId, QuicStreamPriority> priorities_;
absl::flat_hash_map<ScheduleKey, Subscheduler>
web_transport_session_schedulers_;
};
}
#endif
#include "quiche/quic/core/web_transport_write_blocked_list.h"
#include <cstddef>
#include <optional>
#include <string>
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/str_format.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/platform/api/quiche_bug_tracker.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
bool WebTransportWriteBlockedList::HasWriteBlockedDataStreams() const {
return main_schedule_.NumScheduledInPriorityRange(
std::nullopt, RemapUrgency(HttpStreamPriority::kMaximumUrgency,
true)) > 0;
}
size_t WebTransportWriteBlockedList::NumBlockedSpecialStreams() const {
return main_schedule_.NumScheduledInPriorityRange(
RemapUrgency(kStaticUrgency, false), std::nullopt);
}
size_t WebTransportWriteBlockedList::NumBlockedStreams() const {
size_t num_streams = main_schedule_.NumScheduled();
for (const auto& [key, scheduler] : web_transport_session_schedulers_) {
if (scheduler.HasScheduled()) {
num_streams += scheduler.NumScheduled();
QUICHE_DCHECK(main_schedule_.IsScheduled(key));
--num_streams;
}
}
return num_streams;
}
void WebTransportWriteBlockedList::RegisterStream(
QuicStreamId stream_id, bool is_static_stream,
const QuicStreamPriority& raw_priority) {
QuicStreamPriority priority =
is_static_stream
? QuicStreamPriority(HttpStreamPriority{kStaticUrgency, true})
: raw_priority;
auto [unused, success] = priorities_.emplace(stream_id, priority);
if (!success) {
QUICHE_BUG(WTWriteBlocked_RegisterStream_already_registered)
<< "Tried to register stream " << stream_id
<< " that is already registered";
return;
}
if (priority.type() == QuicPriorityType::kHttp) {
absl::Status status = main_schedule_.Register(
ScheduleKey::HttpStream(stream_id),
RemapUrgency(priority.http().urgency, true));
QUICHE_BUG_IF(WTWriteBlocked_RegisterStream_http_scheduler, !status.ok())
<< status;
return;
}
QUICHE_DCHECK_EQ(priority.type(), QuicPriorityType::kWebTransport);
ScheduleKey group_key = ScheduleKey::WebTransportSession(priority);
auto [it, created_new] =
web_transport_session_schedulers_.try_emplace(group_key);
absl::Status status =
it->second.Register(stream_id, priority.web_transport().send_order);
QUICHE_BUG_IF(WTWriteBlocked_RegisterStream_data_scheduler, !status.ok())
<< status;
if (created_new) {
auto session_priority_it =
priorities_.find(priority.web_transport().session_id);
QUICHE_DLOG_IF(WARNING, session_priority_it == priorities_.end())
<< "Stream " << stream_id << " is associated with session ID "
<< priority.web_transport().session_id
<< ", but the session control stream is not registered; assuming "
"default urgency.";
QuicStreamPriority session_priority =
session_priority_it != priorities_.end() ? session_priority_it->second
: QuicStreamPriority();
status = main_schedule_.Register(
group_key,
RemapUrgency(session_priority.http().urgency, false));
QUICHE_BUG_IF(WTWriteBlocked_RegisterStream_main_scheduler, !status.ok())
<< status;
}
}
void WebTransportWriteBlockedList::UnregisterStream(QuicStreamId stream_id) {
auto map_it = priorities_.find(stream_id);
if (map_it == priorities_.end()) {
QUICHE_BUG(WTWriteBlocked_UnregisterStream_not_found)
<< "Stream " << stream_id << " not found";
return;
}
QuicStreamPriority priority = map_it->second;
priorities_.erase(map_it);
if (priority.type() != QuicPriorityType::kWebTransport) {
absl::Status status =
main_schedule_.Unregister(ScheduleKey::HttpStream(stream_id));
QUICHE_BUG_IF(WTWriteBlocked_UnregisterStream_http, !status.ok()) << status;
return;
}
ScheduleKey key = ScheduleKey::WebTransportSession(priority);
auto subscheduler_it = web_transport_session_schedulers_.find(key);
if (subscheduler_it == web_transport_session_schedulers_.end()) {
QUICHE_BUG(WTWriteBlocked_UnregisterStream_no_subscheduler)
<< "Stream " << stream_id
<< " is a WebTransport data stream, but has no scheduler for the "
"associated group";
return;
}
Subscheduler& subscheduler = subscheduler_it->second;
absl::Status status = subscheduler.Unregister(stream_id);
QUICHE_BUG_IF(WTWriteBlocked_UnregisterStream_subscheduler_stream_failed,
!status.ok())
<< status;
if (!subscheduler.HasRegistered()) {
status = main_schedule_.Unregister(key);
QUICHE_BUG_IF(WTWriteBlocked_UnregisterStream_subscheduler_failed,
!status.ok())
<< status;
web_transport_session_schedulers_.erase(subscheduler_it);
}
}
void WebTransportWriteBlockedList::UpdateStreamPriority(
QuicStreamId stream_id, const QuicStreamPriority& new_priority) {
UnregisterStream(stream_id);
RegisterStream(stream_id, false, new_priority);
if (new_priority.type() == QuicPriorityType::kHttp) {
for (auto& [key, subscheduler] : web_transport_session_schedulers_) {
QUICHE_DCHECK(key.has_group());
if (key.stream() == stream_id) {
absl::Status status =
main_schedule_.UpdatePriority(key, new_priority.http().urgency);
QUICHE_BUG_IF(WTWriteBlocked_UpdateStreamPriority_subscheduler_failed,
!status.ok())
<< status;
}
}
}
}
QuicStreamId WebTransportWriteBlockedList::PopFront() {
absl::StatusOr<ScheduleKey> main_key = main_schedule_.PopFront();
if (!main_key.ok()) {
QUICHE_BUG(WTWriteBlocked_PopFront_no_streams)
<< "PopFront() called when no streams scheduled: " << main_key.status();
return 0;
}
if (!main_key->has_group()) {
return main_key->stream();
}
auto it = web_transport_session_schedulers_.find(*main_key);
if (it == web_transport_session_schedulers_.end()) {
QUICHE_BUG(WTWriteBlocked_PopFront_no_subscheduler)
<< "Subscheduler for WebTransport group " << main_key->DebugString()
<< " not found";
return 0;
}
Subscheduler& subscheduler = it->second;
absl::StatusOr<QuicStreamId> result = subscheduler.PopFront();
if (!result.ok()) {
QUICHE_BUG(WTWriteBlocked_PopFront_subscheduler_empty)
<< "Subscheduler for group " << main_key->DebugString()
<< " is empty while in the main schedule";
return 0;
}
if (subscheduler.HasScheduled()) {
absl::Status status = main_schedule_.Schedule(*main_key);
QUICHE_BUG_IF(WTWriteBlocked_PopFront_reschedule_group, !status.ok())
<< status;
}
return *result;
}
void WebTransportWriteBlockedList::AddStream(QuicStreamId stream_id) {
QuicStreamPriority priority = GetPriorityOfStream(stream_id);
absl::Status status;
switch (priority.type()) {
case QuicPriorityType::kHttp:
status = main_schedule_.Schedule(ScheduleKey::HttpStream(stream_id));
QUICHE_BUG_IF(WTWriteBlocked_AddStream_http, !status.ok()) << status;
break;
case QuicPriorityType::kWebTransport:
status =
main_schedule_.Schedule(ScheduleKey::WebTransportSession(priority));
QUICHE_BUG_IF(WTWriteBlocked_AddStream_wt_main, !status.ok()) << status;
auto it = web_transport_session_schedulers_.find(
ScheduleKey::WebTransportSession(priority));
if (it == web_transport_session_schedulers_.end()) {
QUICHE_BUG(WTWriteBlocked_AddStream_no_subscheduler)
<< ScheduleKey::WebTransportSession(priority);
return;
}
Subscheduler& subscheduler = it->second;
status = subscheduler.Schedule(stream_id);
QUICHE_BUG_IF(WTWriteBlocked_AddStream_wt_sub, !status.ok()) << status;
break;
}
}
bool WebTransportWriteBlockedList::IsStreamBlocked(
QuicStreamId stream_id) const {
QuicStreamPriority priority = GetPriorityOfStream(stream_id);
switch (priority.type()) {
case QuicPriorityType::kHttp:
return main_schedule_.IsScheduled(ScheduleKey::HttpStream(stream_id));
case QuicPriorityType::kWebTransport:
auto it = web_transport_session_schedulers_.find(
ScheduleKey::WebTransportSession(priority));
if (it == web_transport_session_schedulers_.end()) {
QUICHE_BUG(WTWriteBlocked_IsStreamBlocked_no_subscheduler)
<< ScheduleKey::WebTransportSession(priority);
return false;
}
const Subscheduler& subscheduler = it->second;
return subscheduler.IsScheduled(stream_id);
}
QUICHE_NOTREACHED();
return false;
}
QuicStreamPriority WebTransportWriteBlockedList::GetPriorityOfStream(
QuicStreamId id) const {
auto it = priorities_.find(id);
if (it == priorities_.end()) {
QUICHE_BUG(WTWriteBlocked_GetPriorityOfStream_not_found)
<< "Stream " << id << " not found";
return QuicStreamPriority();
}
return it->second;
}
std::string WebTransportWriteBlockedList::ScheduleKey::DebugString() const {
return absl::StrFormat("(%d, %d)", stream_, group_);
}
bool WebTransportWriteBlockedList::ShouldYield(QuicStreamId id) const {
QuicStreamPriority priority = GetPriorityOfStream(id);
if (priority.type() == QuicPriorityType::kHttp) {
absl::StatusOr<bool> should_yield =
main_schedule_.ShouldYield(ScheduleKey::HttpStream(id));
QUICHE_BUG_IF(WTWriteBlocked_ShouldYield_http, !should_yield.ok())
<< should_yield.status();
return *should_yield;
}
QUICHE_DCHECK_EQ(priority.type(), QuicPriorityType::kWebTransport);
absl::StatusOr<bool> should_yield =
main_schedule_.ShouldYield(ScheduleKey::WebTransportSession(priority));
QUICHE_BUG_IF(WTWriteBlocked_ShouldYield_wt_main, !should_yield.ok())
<< should_yield.status();
if (*should_yield) {
return true;
}
auto it = web_transport_session_schedulers_.find(
ScheduleKey::WebTransportSession(priority));
if (it == web_transport_session_schedulers_.end()) {
QUICHE_BUG(WTWriteBlocked_ShouldYield_subscheduler_not_found)
<< "Subscheduler not found for "
<< ScheduleKey::WebTransportSession(priority);
return false;
}
const Subscheduler& subscheduler = it->second;
should_yield = subscheduler.ShouldYield(id);
QUICHE_BUG_IF(WTWriteBlocked_ShouldYield_wt_subscheduler, !should_yield.ok())
<< should_yield.status();
return *should_yield;
}
} | #include "quiche/quic/core/web_transport_write_blocked_list.h"
#include <algorithm>
#include <array>
#include <cstddef>
#include <iterator>
#include <vector>
#include "absl/algorithm/container.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/platform/api/quiche_expect_bug.h"
#include "quiche/common/platform/api/quiche_test.h"
namespace quic::test {
namespace {
using ::testing::ElementsAre;
using ::testing::ElementsAreArray;
class WebTransportWriteBlockedListTest : public ::quiche::test::QuicheTest {
protected:
void RegisterStaticStream(QuicStreamId id) {
list_.RegisterStream(id, true, QuicStreamPriority());
}
void RegisterHttpStream(QuicStreamId id,
int urgency = HttpStreamPriority::kDefaultUrgency) {
HttpStreamPriority priority;
priority.urgency = urgency;
list_.RegisterStream(id, false,
QuicStreamPriority(priority));
}
void RegisterWebTransportDataStream(QuicStreamId id,
WebTransportStreamPriority priority) {
list_.RegisterStream(id, false,
QuicStreamPriority(priority));
}
std::vector<QuicStreamId> PopAll() {
std::vector<QuicStreamId> result;
size_t expected_count = list_.NumBlockedStreams();
while (list_.NumBlockedStreams() > 0) {
EXPECT_TRUE(list_.HasWriteBlockedDataStreams() ||
list_.HasWriteBlockedSpecialStream());
result.push_back(list_.PopFront());
EXPECT_EQ(list_.NumBlockedStreams(), --expected_count);
}
return result;
}
WebTransportWriteBlockedList list_;
};
TEST_F(WebTransportWriteBlockedListTest, BasicHttpStreams) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterHttpStream(3, HttpStreamPriority::kDefaultUrgency + 1);
RegisterStaticStream(4);
EXPECT_EQ(list_.GetPriorityOfStream(1), QuicStreamPriority());
EXPECT_EQ(list_.GetPriorityOfStream(2), QuicStreamPriority());
EXPECT_EQ(list_.GetPriorityOfStream(3).http().urgency, 4);
EXPECT_EQ(list_.NumBlockedStreams(), 0);
EXPECT_EQ(list_.NumBlockedSpecialStreams(), 0);
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
list_.AddStream(4);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_EQ(list_.NumBlockedSpecialStreams(), 1);
EXPECT_THAT(PopAll(), ElementsAre(4, 3, 1, 2));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
EXPECT_EQ(list_.NumBlockedSpecialStreams(), 0);
list_.AddStream(2);
list_.AddStream(3);
list_.AddStream(4);
list_.AddStream(1);
EXPECT_THAT(PopAll(), ElementsAre(4, 3, 2, 1));
}
TEST_F(WebTransportWriteBlockedListTest, RegisterDuplicateStream) {
RegisterHttpStream(1);
EXPECT_QUICHE_BUG(RegisterHttpStream(1), "already registered");
}
TEST_F(WebTransportWriteBlockedListTest, UnregisterMissingStream) {
EXPECT_QUICHE_BUG(list_.UnregisterStream(1), "not found");
}
TEST_F(WebTransportWriteBlockedListTest, GetPriorityMissingStream) {
EXPECT_QUICHE_BUG(list_.GetPriorityOfStream(1), "not found");
}
TEST_F(WebTransportWriteBlockedListTest, PopFrontMissing) {
RegisterHttpStream(1);
list_.AddStream(1);
EXPECT_EQ(list_.PopFront(), 1);
EXPECT_QUICHE_BUG(list_.PopFront(), "no streams scheduled");
}
TEST_F(WebTransportWriteBlockedListTest, HasWriteBlockedDataStreams) {
RegisterStaticStream(1);
RegisterHttpStream(2);
EXPECT_FALSE(list_.HasWriteBlockedDataStreams());
list_.AddStream(1);
EXPECT_FALSE(list_.HasWriteBlockedDataStreams());
list_.AddStream(2);
EXPECT_TRUE(list_.HasWriteBlockedDataStreams());
EXPECT_EQ(list_.PopFront(), 1);
EXPECT_TRUE(list_.HasWriteBlockedDataStreams());
EXPECT_EQ(list_.PopFront(), 2);
EXPECT_FALSE(list_.HasWriteBlockedDataStreams());
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreams) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, 0});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, 0});
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(3);
list_.AddStream(5);
list_.AddStream(4);
list_.AddStream(6);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(3, 5, 4, 6));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(3);
list_.AddStream(4);
list_.AddStream(5);
EXPECT_EQ(list_.NumBlockedStreams(), 3);
EXPECT_THAT(PopAll(), ElementsAre(3, 5, 4));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(4);
list_.AddStream(5);
list_.AddStream(6);
EXPECT_EQ(list_.NumBlockedStreams(), 3);
EXPECT_THAT(PopAll(), ElementsAre(4, 5, 6));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(6);
list_.AddStream(3);
list_.AddStream(4);
list_.AddStream(5);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(6, 3, 5, 4));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(6);
list_.AddStream(5);
list_.AddStream(4);
list_.AddStream(3);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(6, 4, 5, 3));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreamsWithHigherPriorityGroup) {
RegisterHttpStream(1, HttpStreamPriority::kDefaultUrgency + 1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, 0});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, 0});
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(3);
list_.AddStream(5);
list_.AddStream(4);
list_.AddStream(6);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(3, 4, 5, 6));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(3);
list_.AddStream(4);
list_.AddStream(5);
EXPECT_EQ(list_.NumBlockedStreams(), 3);
EXPECT_THAT(PopAll(), ElementsAre(3, 4, 5));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(4);
list_.AddStream(5);
list_.AddStream(6);
EXPECT_EQ(list_.NumBlockedStreams(), 3);
EXPECT_THAT(PopAll(), ElementsAre(4, 5, 6));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(6);
list_.AddStream(3);
list_.AddStream(4);
list_.AddStream(5);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(3, 4, 6, 5));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
list_.AddStream(6);
list_.AddStream(5);
list_.AddStream(4);
list_.AddStream(3);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
EXPECT_THAT(PopAll(), ElementsAre(4, 3, 6, 5));
EXPECT_EQ(list_.NumBlockedStreams(), 0);
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreamVsControlStream) {
RegisterHttpStream(1);
RegisterWebTransportDataStream(2, WebTransportStreamPriority{1, 0, 0});
list_.AddStream(2);
list_.AddStream(1);
EXPECT_THAT(PopAll(), ElementsAre(1, 2));
list_.AddStream(1);
list_.AddStream(2);
EXPECT_THAT(PopAll(), ElementsAre(1, 2));
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreamsSendOrder) {
RegisterHttpStream(1);
RegisterWebTransportDataStream(2, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 100});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, -100});
list_.AddStream(4);
list_.AddStream(3);
list_.AddStream(2);
list_.AddStream(1);
EXPECT_THAT(PopAll(), ElementsAre(1, 3, 2, 4));
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreamsDifferentGroups) {
RegisterHttpStream(1);
RegisterWebTransportDataStream(2, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 1, 100});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 7, -100});
list_.AddStream(4);
list_.AddStream(3);
list_.AddStream(2);
list_.AddStream(1);
EXPECT_THAT(PopAll(), ElementsAre(1, 4, 3, 2));
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
list_.AddStream(4);
EXPECT_THAT(PopAll(), ElementsAre(1, 2, 3, 4));
}
TEST_F(WebTransportWriteBlockedListTest, NestedStreamsDifferentSession) {
RegisterWebTransportDataStream(1, WebTransportStreamPriority{10, 0, 0});
RegisterWebTransportDataStream(2, WebTransportStreamPriority{11, 0, 100});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{12, 0, -100});
list_.AddStream(3);
list_.AddStream(2);
list_.AddStream(1);
EXPECT_THAT(PopAll(), ElementsAre(3, 2, 1));
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(1, 2, 3));
}
TEST_F(WebTransportWriteBlockedListTest, UnregisterScheduledStreams) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, 0});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, 0});
EXPECT_EQ(list_.NumBlockedStreams(), 0);
for (QuicStreamId id : {1, 2, 3, 4, 5, 6}) {
list_.AddStream(id);
}
EXPECT_EQ(list_.NumBlockedStreams(), 6);
list_.UnregisterStream(1);
EXPECT_EQ(list_.NumBlockedStreams(), 5);
list_.UnregisterStream(3);
EXPECT_EQ(list_.NumBlockedStreams(), 4);
list_.UnregisterStream(4);
EXPECT_EQ(list_.NumBlockedStreams(), 3);
list_.UnregisterStream(5);
EXPECT_EQ(list_.NumBlockedStreams(), 2);
list_.UnregisterStream(6);
EXPECT_EQ(list_.NumBlockedStreams(), 1);
list_.UnregisterStream(2);
EXPECT_EQ(list_.NumBlockedStreams(), 0);
}
TEST_F(WebTransportWriteBlockedListTest, UnregisterUnscheduledStreams) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, 0});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, 0});
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 2);
EXPECT_EQ(list_.NumRegisteredGroups(), 2);
list_.UnregisterStream(1);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 1);
EXPECT_EQ(list_.NumRegisteredGroups(), 2);
list_.UnregisterStream(3);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 1);
EXPECT_EQ(list_.NumRegisteredGroups(), 2);
list_.UnregisterStream(4);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 1);
EXPECT_EQ(list_.NumRegisteredGroups(), 1);
list_.UnregisterStream(5);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 1);
EXPECT_EQ(list_.NumRegisteredGroups(), 1);
list_.UnregisterStream(6);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 1);
EXPECT_EQ(list_.NumRegisteredGroups(), 0);
list_.UnregisterStream(2);
EXPECT_EQ(list_.NumRegisteredHttpStreams(), 0);
EXPECT_EQ(list_.NumRegisteredGroups(), 0);
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, 0});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, 0});
}
TEST_F(WebTransportWriteBlockedListTest, IsStreamBlocked) {
RegisterHttpStream(1);
RegisterWebTransportDataStream(2, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{9, 0, 0});
EXPECT_FALSE(list_.IsStreamBlocked(1));
EXPECT_FALSE(list_.IsStreamBlocked(2));
EXPECT_FALSE(list_.IsStreamBlocked(3));
list_.AddStream(3);
EXPECT_FALSE(list_.IsStreamBlocked(1));
EXPECT_FALSE(list_.IsStreamBlocked(2));
EXPECT_TRUE(list_.IsStreamBlocked(3));
list_.AddStream(1);
EXPECT_TRUE(list_.IsStreamBlocked(1));
EXPECT_FALSE(list_.IsStreamBlocked(2));
EXPECT_TRUE(list_.IsStreamBlocked(3));
ASSERT_EQ(list_.PopFront(), 1);
EXPECT_FALSE(list_.IsStreamBlocked(1));
EXPECT_FALSE(list_.IsStreamBlocked(2));
EXPECT_TRUE(list_.IsStreamBlocked(3));
}
TEST_F(WebTransportWriteBlockedListTest, UpdatePriorityHttp) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterHttpStream(3);
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(1, 2, 3));
list_.UpdateStreamPriority(
2, QuicStreamPriority(
HttpStreamPriority{HttpStreamPriority::kMaximumUrgency, false}));
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(2, 1, 3));
}
TEST_F(WebTransportWriteBlockedListTest, UpdatePriorityWebTransport) {
RegisterWebTransportDataStream(1, WebTransportStreamPriority{0, 0, 0});
RegisterWebTransportDataStream(2, WebTransportStreamPriority{0, 0, 0});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{0, 0, 0});
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(1, 2, 3));
list_.UpdateStreamPriority(
2, QuicStreamPriority(WebTransportStreamPriority{0, 0, 1}));
list_.AddStream(1);
list_.AddStream(2);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(2, 1, 3));
}
TEST_F(WebTransportWriteBlockedListTest, UpdatePriorityControlStream) {
RegisterHttpStream(1);
RegisterHttpStream(2);
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{2, 0, 0});
list_.AddStream(3);
list_.AddStream(4);
EXPECT_THAT(PopAll(), ElementsAre(3, 4));
list_.AddStream(4);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(4, 3));
list_.UpdateStreamPriority(
2, QuicStreamPriority(
HttpStreamPriority{HttpStreamPriority::kMaximumUrgency, false}));
list_.AddStream(3);
list_.AddStream(4);
EXPECT_THAT(PopAll(), ElementsAre(4, 3));
list_.AddStream(4);
list_.AddStream(3);
EXPECT_THAT(PopAll(), ElementsAre(4, 3));
}
TEST_F(WebTransportWriteBlockedListTest, ShouldYield) {
RegisterHttpStream(1);
RegisterWebTransportDataStream(2, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(3, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 10});
EXPECT_FALSE(list_.ShouldYield(1));
EXPECT_FALSE(list_.ShouldYield(2));
EXPECT_FALSE(list_.ShouldYield(3));
EXPECT_FALSE(list_.ShouldYield(4));
list_.AddStream(1);
EXPECT_FALSE(list_.ShouldYield(1));
EXPECT_TRUE(list_.ShouldYield(2));
EXPECT_TRUE(list_.ShouldYield(3));
EXPECT_TRUE(list_.ShouldYield(4));
PopAll();
list_.AddStream(2);
EXPECT_FALSE(list_.ShouldYield(1));
EXPECT_FALSE(list_.ShouldYield(2));
EXPECT_TRUE(list_.ShouldYield(3));
EXPECT_FALSE(list_.ShouldYield(4));
PopAll();
list_.AddStream(4);
EXPECT_FALSE(list_.ShouldYield(1));
EXPECT_TRUE(list_.ShouldYield(2));
EXPECT_TRUE(list_.ShouldYield(3));
EXPECT_FALSE(list_.ShouldYield(4));
PopAll();
}
TEST_F(WebTransportWriteBlockedListTest, RandomizedTest) {
RegisterHttpStream(1);
RegisterHttpStream(2, HttpStreamPriority::kMinimumUrgency);
RegisterHttpStream(3, HttpStreamPriority::kMaximumUrgency);
RegisterWebTransportDataStream(4, WebTransportStreamPriority{1, 0, 0});
RegisterWebTransportDataStream(5, WebTransportStreamPriority{2, 0, +1});
RegisterWebTransportDataStream(6, WebTransportStreamPriority{2, 0, -1});
RegisterWebTransportDataStream(7, WebTransportStreamPriority{3, 8, 0});
RegisterWebTransportDataStream(8, WebTransportStreamPriority{3, 8, 100});
RegisterWebTransportDataStream(9, WebTransportStreamPriority{3, 8, 20000});
RegisterHttpStream(10, HttpStreamPriority::kDefaultUrgency + 1);
constexpr std::array<QuicStreamId, 10> order = {3, 9, 8, 7, 10,
1, 4, 2, 5, 6};
SimpleRandom random;
for (int i = 0; i < 1000; ++i) {
std::vector<QuicStreamId> pushed_streams(order.begin(), order.end());
for (int j = pushed_streams.size() - 1; j > 0; --j) {
std::swap(pushed_streams[j],
pushed_streams[random.RandUint64() % (j + 1)]);
}
size_t stream_count = 1 + random.RandUint64() % order.size();
pushed_streams.resize(stream_count);
for (QuicStreamId id : pushed_streams) {
list_.AddStream(id);
}
std::vector<QuicStreamId> expected_streams;
absl::c_copy_if(
order, std::back_inserter(expected_streams), [&](QuicStreamId id) {
return absl::c_find(pushed_streams, id) != pushed_streams.end();
});
ASSERT_THAT(PopAll(), ElementsAreArray(expected_streams));
}
}
}
} |
268 | cpp | google/quiche | quic_coalesced_packet | quiche/quic/core/quic_coalesced_packet.cc | quiche/quic/core/quic_coalesced_packet_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_COALESCED_PACKET_H_
#define QUICHE_QUIC_CORE_QUIC_COALESCED_PACKET_H_
#include "quiche/quic/core/quic_packets.h"
namespace quic {
namespace test {
class QuicCoalescedPacketPeer;
}
class QUICHE_EXPORT QuicCoalescedPacket {
public:
QuicCoalescedPacket();
~QuicCoalescedPacket();
bool MaybeCoalescePacket(const SerializedPacket& packet,
const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
quiche::QuicheBufferAllocator* allocator,
QuicPacketLength current_max_packet_length,
QuicEcnCodepoint ecn_codepoint);
void Clear();
void NeuterInitialPacket();
bool CopyEncryptedBuffers(char* buffer, size_t buffer_len,
size_t* length_copied) const;
std::string ToString(size_t serialized_length) const;
bool ContainsPacketOfEncryptionLevel(EncryptionLevel level) const;
TransmissionType TransmissionTypeOfPacket(EncryptionLevel level) const;
size_t NumberOfPackets() const;
const SerializedPacket* initial_packet() const {
return initial_packet_.get();
}
const QuicSocketAddress& self_address() const { return self_address_; }
const QuicSocketAddress& peer_address() const { return peer_address_; }
QuicPacketLength length() const { return length_; }
QuicPacketLength max_packet_length() const { return max_packet_length_; }
std::vector<size_t> packet_lengths() const;
QuicEcnCodepoint ecn_codepoint() const { return ecn_codepoint_; }
private:
friend class test::QuicCoalescedPacketPeer;
QuicSocketAddress self_address_;
QuicSocketAddress peer_address_;
QuicPacketLength length_;
QuicPacketLength max_packet_length_;
std::string encrypted_buffers_[NUM_ENCRYPTION_LEVELS];
TransmissionType transmission_types_[NUM_ENCRYPTION_LEVELS];
std::unique_ptr<SerializedPacket> initial_packet_;
QuicEcnCodepoint ecn_codepoint_;
};
}
#endif
#include "quiche/quic/core/quic_coalesced_packet.h"
#include <string>
#include <vector>
#include "absl/memory/memory.h"
#include "absl/strings/str_cat.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
namespace quic {
QuicCoalescedPacket::QuicCoalescedPacket()
: length_(0), max_packet_length_(0), ecn_codepoint_(ECN_NOT_ECT) {}
QuicCoalescedPacket::~QuicCoalescedPacket() { Clear(); }
bool QuicCoalescedPacket::MaybeCoalescePacket(
const SerializedPacket& packet, const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
quiche::QuicheBufferAllocator* allocator,
QuicPacketLength current_max_packet_length,
QuicEcnCodepoint ecn_codepoint) {
if (packet.encrypted_length == 0) {
QUIC_BUG(quic_bug_10611_1) << "Trying to coalesce an empty packet";
return true;
}
if (length_ == 0) {
#ifndef NDEBUG
for (const auto& buffer : encrypted_buffers_) {
QUICHE_DCHECK(buffer.empty());
}
#endif
QUICHE_DCHECK(initial_packet_ == nullptr);
max_packet_length_ = current_max_packet_length;
self_address_ = self_address;
peer_address_ = peer_address;
} else {
if (self_address_ != self_address || peer_address_ != peer_address) {
QUIC_DLOG(INFO)
<< "Cannot coalesce packet because self/peer address changed";
return false;
}
if (max_packet_length_ != current_max_packet_length) {
QUIC_BUG(quic_bug_10611_2)
<< "Max packet length changes in the middle of the write path";
return false;
}
if (ContainsPacketOfEncryptionLevel(packet.encryption_level)) {
return false;
}
if (ecn_codepoint != ecn_codepoint_) {
return false;
}
}
if (length_ + packet.encrypted_length > max_packet_length_) {
return false;
}
QUIC_DVLOG(1) << "Successfully coalesced packet: encryption_level: "
<< packet.encryption_level
<< ", encrypted_length: " << packet.encrypted_length
<< ", current length: " << length_
<< ", max_packet_length: " << max_packet_length_;
if (length_ > 0) {
QUIC_CODE_COUNT(QUIC_SUCCESSFULLY_COALESCED_MULTIPLE_PACKETS);
}
ecn_codepoint_ = ecn_codepoint;
length_ += packet.encrypted_length;
transmission_types_[packet.encryption_level] = packet.transmission_type;
if (packet.encryption_level == ENCRYPTION_INITIAL) {
initial_packet_ = absl::WrapUnique<SerializedPacket>(
CopySerializedPacket(packet, allocator, false));
return true;
}
encrypted_buffers_[packet.encryption_level] =
std::string(packet.encrypted_buffer, packet.encrypted_length);
return true;
}
void QuicCoalescedPacket::Clear() {
self_address_ = QuicSocketAddress();
peer_address_ = QuicSocketAddress();
length_ = 0;
max_packet_length_ = 0;
for (auto& packet : encrypted_buffers_) {
packet.clear();
}
for (size_t i = ENCRYPTION_INITIAL; i < NUM_ENCRYPTION_LEVELS; ++i) {
transmission_types_[i] = NOT_RETRANSMISSION;
}
initial_packet_ = nullptr;
}
void QuicCoalescedPacket::NeuterInitialPacket() {
if (initial_packet_ == nullptr) {
return;
}
if (length_ < initial_packet_->encrypted_length) {
QUIC_BUG(quic_bug_10611_3)
<< "length_: " << length_ << ", is less than initial packet length: "
<< initial_packet_->encrypted_length;
Clear();
return;
}
length_ -= initial_packet_->encrypted_length;
if (length_ == 0) {
Clear();
return;
}
transmission_types_[ENCRYPTION_INITIAL] = NOT_RETRANSMISSION;
initial_packet_ = nullptr;
}
bool QuicCoalescedPacket::CopyEncryptedBuffers(char* buffer, size_t buffer_len,
size_t* length_copied) const {
*length_copied = 0;
for (const auto& packet : encrypted_buffers_) {
if (packet.empty()) {
continue;
}
if (packet.length() > buffer_len) {
return false;
}
memcpy(buffer, packet.data(), packet.length());
buffer += packet.length();
buffer_len -= packet.length();
*length_copied += packet.length();
}
return true;
}
bool QuicCoalescedPacket::ContainsPacketOfEncryptionLevel(
EncryptionLevel level) const {
return !encrypted_buffers_[level].empty() ||
(level == ENCRYPTION_INITIAL && initial_packet_ != nullptr);
}
TransmissionType QuicCoalescedPacket::TransmissionTypeOfPacket(
EncryptionLevel level) const {
if (!ContainsPacketOfEncryptionLevel(level)) {
QUIC_BUG(quic_bug_10611_4)
<< "Coalesced packet does not contain packet of encryption level: "
<< EncryptionLevelToString(level);
return NOT_RETRANSMISSION;
}
return transmission_types_[level];
}
size_t QuicCoalescedPacket::NumberOfPackets() const {
size_t num_of_packets = 0;
for (int8_t i = ENCRYPTION_INITIAL; i < NUM_ENCRYPTION_LEVELS; ++i) {
if (ContainsPacketOfEncryptionLevel(static_cast<EncryptionLevel>(i))) {
++num_of_packets;
}
}
return num_of_packets;
}
std::string QuicCoalescedPacket::ToString(size_t serialized_length) const {
std::string info = absl::StrCat(
"total_length: ", serialized_length,
" padding_size: ", serialized_length - length_, " packets: {");
bool first_packet = true;
for (int8_t i = ENCRYPTION_INITIAL; i < NUM_ENCRYPTION_LEVELS; ++i) {
if (ContainsPacketOfEncryptionLevel(static_cast<EncryptionLevel>(i))) {
absl::StrAppend(&info, first_packet ? "" : ", ",
EncryptionLevelToString(static_cast<EncryptionLevel>(i)));
first_packet = false;
}
}
absl::StrAppend(&info, "}");
return info;
}
std::vector<size_t> QuicCoalescedPacket::packet_lengths() const {
std::vector<size_t> lengths;
for (const auto& packet : encrypted_buffers_) {
if (lengths.empty()) {
lengths.push_back(
initial_packet_ == nullptr ? 0 : initial_packet_->encrypted_length);
} else {
lengths.push_back(packet.length());
}
}
return lengths;
}
} | #include "quiche/quic/core/quic_coalesced_packet.h"
#include <string>
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
namespace quic {
namespace test {
namespace {
TEST(QuicCoalescedPacketTest, MaybeCoalescePacket) {
QuicCoalescedPacket coalesced;
EXPECT_EQ("total_length: 0 padding_size: 0 packets: {}",
coalesced.ToString(0));
quiche::SimpleBufferAllocator allocator;
EXPECT_EQ(0u, coalesced.length());
EXPECT_EQ(0u, coalesced.NumberOfPackets());
char buffer[1000];
QuicSocketAddress self_address(QuicIpAddress::Loopback4(), 1);
QuicSocketAddress peer_address(QuicIpAddress::Loopback4(), 2);
SerializedPacket packet1(QuicPacketNumber(1), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet1.transmission_type = PTO_RETRANSMISSION;
QuicAckFrame ack_frame(InitAckFrame(1));
packet1.nonretransmittable_frames.push_back(QuicFrame(&ack_frame));
packet1.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(1, true, 0, 100)));
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet1, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(PTO_RETRANSMISSION,
coalesced.TransmissionTypeOfPacket(ENCRYPTION_INITIAL));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(500u, coalesced.length());
EXPECT_EQ(1u, coalesced.NumberOfPackets());
EXPECT_EQ(
"total_length: 1500 padding_size: 1000 packets: {ENCRYPTION_INITIAL}",
coalesced.ToString(1500));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
SerializedPacket packet2(QuicPacketNumber(2), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
EXPECT_FALSE(coalesced.MaybeCoalescePacket(
packet2, self_address, peer_address, &allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
SerializedPacket packet3(QuicPacketNumber(3), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet3.nonretransmittable_frames.push_back(QuicFrame(QuicPaddingFrame(100)));
packet3.encryption_level = ENCRYPTION_ZERO_RTT;
packet3.transmission_type = LOSS_RETRANSMISSION;
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet3, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1000u, coalesced.length());
EXPECT_EQ(2u, coalesced.NumberOfPackets());
EXPECT_EQ(LOSS_RETRANSMISSION,
coalesced.TransmissionTypeOfPacket(ENCRYPTION_ZERO_RTT));
EXPECT_EQ(
"total_length: 1500 padding_size: 500 packets: {ENCRYPTION_INITIAL, "
"ENCRYPTION_ZERO_RTT}",
coalesced.ToString(1500));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
SerializedPacket packet4(QuicPacketNumber(4), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet4.encryption_level = ENCRYPTION_FORWARD_SECURE;
EXPECT_FALSE(coalesced.MaybeCoalescePacket(
packet4, QuicSocketAddress(QuicIpAddress::Loopback4(), 3), peer_address,
&allocator, 1500, ECN_NOT_ECT));
SerializedPacket packet5(QuicPacketNumber(5), PACKET_4BYTE_PACKET_NUMBER,
buffer, 501, false, false);
packet5.encryption_level = ENCRYPTION_FORWARD_SECURE;
EXPECT_FALSE(coalesced.MaybeCoalescePacket(
packet5, self_address, peer_address, &allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1000u, coalesced.length());
EXPECT_EQ(2u, coalesced.NumberOfPackets());
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
SerializedPacket packet6(QuicPacketNumber(6), PACKET_4BYTE_PACKET_NUMBER,
buffer, 100, false, false);
packet6.encryption_level = ENCRYPTION_FORWARD_SECURE;
EXPECT_QUIC_BUG(
coalesced.MaybeCoalescePacket(packet6, self_address, peer_address,
&allocator, 1000, ECN_NOT_ECT),
"Max packet length changes in the middle of the write path");
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1000u, coalesced.length());
EXPECT_EQ(2u, coalesced.NumberOfPackets());
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
}
TEST(QuicCoalescedPacketTest, CopyEncryptedBuffers) {
QuicCoalescedPacket coalesced;
quiche::SimpleBufferAllocator allocator;
QuicSocketAddress self_address(QuicIpAddress::Loopback4(), 1);
QuicSocketAddress peer_address(QuicIpAddress::Loopback4(), 2);
std::string buffer(500, 'a');
std::string buffer2(500, 'b');
SerializedPacket packet1(QuicPacketNumber(1), PACKET_4BYTE_PACKET_NUMBER,
buffer.data(), 500,
false, false);
packet1.encryption_level = ENCRYPTION_ZERO_RTT;
SerializedPacket packet2(QuicPacketNumber(2), PACKET_4BYTE_PACKET_NUMBER,
buffer2.data(), 500,
false, false);
packet2.encryption_level = ENCRYPTION_FORWARD_SECURE;
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet1, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet2, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(1000u, coalesced.length());
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
char copy_buffer[1000];
size_t length_copied = 0;
EXPECT_FALSE(
coalesced.CopyEncryptedBuffers(copy_buffer, 900, &length_copied));
ASSERT_TRUE(
coalesced.CopyEncryptedBuffers(copy_buffer, 1000, &length_copied));
EXPECT_EQ(1000u, length_copied);
char expected[1000];
memset(expected, 'a', 500);
memset(expected + 500, 'b', 500);
quiche::test::CompareCharArraysWithHexError("copied buffers", copy_buffer,
length_copied, expected, 1000);
}
TEST(QuicCoalescedPacketTest, NeuterInitialPacket) {
QuicCoalescedPacket coalesced;
EXPECT_EQ("total_length: 0 padding_size: 0 packets: {}",
coalesced.ToString(0));
coalesced.NeuterInitialPacket();
EXPECT_EQ("total_length: 0 padding_size: 0 packets: {}",
coalesced.ToString(0));
quiche::SimpleBufferAllocator allocator;
EXPECT_EQ(0u, coalesced.length());
char buffer[1000];
QuicSocketAddress self_address(QuicIpAddress::Loopback4(), 1);
QuicSocketAddress peer_address(QuicIpAddress::Loopback4(), 2);
SerializedPacket packet1(QuicPacketNumber(1), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet1.transmission_type = PTO_RETRANSMISSION;
QuicAckFrame ack_frame(InitAckFrame(1));
packet1.nonretransmittable_frames.push_back(QuicFrame(&ack_frame));
packet1.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(1, true, 0, 100)));
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet1, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(PTO_RETRANSMISSION,
coalesced.TransmissionTypeOfPacket(ENCRYPTION_INITIAL));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(500u, coalesced.length());
EXPECT_EQ(
"total_length: 1500 padding_size: 1000 packets: {ENCRYPTION_INITIAL}",
coalesced.ToString(1500));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
coalesced.NeuterInitialPacket();
EXPECT_EQ(0u, coalesced.max_packet_length());
EXPECT_EQ(0u, coalesced.length());
EXPECT_EQ("total_length: 0 padding_size: 0 packets: {}",
coalesced.ToString(0));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet1, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
SerializedPacket packet2(QuicPacketNumber(3), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet2.nonretransmittable_frames.push_back(QuicFrame(QuicPaddingFrame(100)));
packet2.encryption_level = ENCRYPTION_ZERO_RTT;
packet2.transmission_type = LOSS_RETRANSMISSION;
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet2, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1000u, coalesced.length());
EXPECT_EQ(LOSS_RETRANSMISSION,
coalesced.TransmissionTypeOfPacket(ENCRYPTION_ZERO_RTT));
EXPECT_EQ(
"total_length: 1500 padding_size: 500 packets: {ENCRYPTION_INITIAL, "
"ENCRYPTION_ZERO_RTT}",
coalesced.ToString(1500));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
coalesced.NeuterInitialPacket();
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(500u, coalesced.length());
EXPECT_EQ(
"total_length: 1500 padding_size: 1000 packets: {ENCRYPTION_ZERO_RTT}",
coalesced.ToString(1500));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
SerializedPacket packet3(QuicPacketNumber(5), PACKET_4BYTE_PACKET_NUMBER,
buffer, 501, false, false);
packet3.encryption_level = ENCRYPTION_FORWARD_SECURE;
EXPECT_TRUE(coalesced.MaybeCoalescePacket(packet3, self_address, peer_address,
&allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1001u, coalesced.length());
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
coalesced.NeuterInitialPacket();
EXPECT_EQ(1500u, coalesced.max_packet_length());
EXPECT_EQ(1001u, coalesced.length());
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_NOT_ECT);
}
TEST(QuicCoalescedPacketTest, DoNotCoalesceDifferentEcn) {
QuicCoalescedPacket coalesced;
EXPECT_EQ("total_length: 0 padding_size: 0 packets: {}",
coalesced.ToString(0));
quiche::SimpleBufferAllocator allocator;
EXPECT_EQ(0u, coalesced.length());
EXPECT_EQ(0u, coalesced.NumberOfPackets());
char buffer[1000];
QuicSocketAddress self_address(QuicIpAddress::Loopback4(), 1);
QuicSocketAddress peer_address(QuicIpAddress::Loopback4(), 2);
SerializedPacket packet1(QuicPacketNumber(1), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet1.transmission_type = PTO_RETRANSMISSION;
QuicAckFrame ack_frame(InitAckFrame(1));
packet1.nonretransmittable_frames.push_back(QuicFrame(&ack_frame));
packet1.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(1, true, 0, 100)));
ASSERT_TRUE(coalesced.MaybeCoalescePacket(packet1, self_address, peer_address,
&allocator, 1500, ECN_ECT1));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_ECT1);
SerializedPacket packet2(QuicPacketNumber(2), PACKET_4BYTE_PACKET_NUMBER,
buffer, 500, false, false);
packet2.nonretransmittable_frames.push_back(QuicFrame(QuicPaddingFrame(100)));
packet2.encryption_level = ENCRYPTION_ZERO_RTT;
packet2.transmission_type = LOSS_RETRANSMISSION;
EXPECT_FALSE(coalesced.MaybeCoalescePacket(
packet2, self_address, peer_address, &allocator, 1500, ECN_NOT_ECT));
EXPECT_EQ(coalesced.ecn_codepoint(), ECN_ECT1);
}
}
}
} |
269 | cpp | google/quiche | quic_received_packet_manager | quiche/quic/core/quic_received_packet_manager.cc | quiche/quic/core/quic_received_packet_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_RECEIVED_PACKET_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_RECEIVED_PACKET_MANAGER_H_
#include <cstddef>
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class RttStats;
namespace test {
class QuicConnectionPeer;
class QuicReceivedPacketManagerPeer;
class UberReceivedPacketManagerPeer;
}
struct QuicConnectionStats;
class QUICHE_EXPORT QuicReceivedPacketManager {
public:
QuicReceivedPacketManager();
explicit QuicReceivedPacketManager(QuicConnectionStats* stats);
QuicReceivedPacketManager(const QuicReceivedPacketManager&) = delete;
QuicReceivedPacketManager& operator=(const QuicReceivedPacketManager&) =
delete;
virtual ~QuicReceivedPacketManager();
void SetFromConfig(const QuicConfig& config, Perspective perspective);
virtual void RecordPacketReceived(const QuicPacketHeader& header,
QuicTime receipt_time,
QuicEcnCodepoint ecn);
virtual bool IsMissing(QuicPacketNumber packet_number);
virtual bool IsAwaitingPacket(QuicPacketNumber packet_number) const;
const QuicFrame GetUpdatedAckFrame(QuicTime approximate_now);
void DontWaitForPacketsBefore(QuicPacketNumber least_unacked);
void MaybeUpdateAckTimeout(bool should_last_packet_instigate_acks,
QuicPacketNumber last_received_packet_number,
QuicTime last_packet_receipt_time, QuicTime now,
const RttStats* rtt_stats);
void ResetAckStates();
bool HasMissingPackets() const;
virtual bool HasNewMissingPackets() const;
virtual bool ack_frame_updated() const;
QuicPacketNumber GetLargestObserved() const;
QuicPacketNumber PeerFirstSendingPacketNumber() const;
bool IsAckFrameEmpty() const;
void set_connection_stats(QuicConnectionStats* stats) { stats_ = stats; }
const QuicAckFrame& ack_frame() const { return ack_frame_; }
void set_max_ack_ranges(size_t max_ack_ranges) {
max_ack_ranges_ = max_ack_ranges;
}
void set_save_timestamps(bool save_timestamps, bool in_order_packets_only) {
save_timestamps_ = save_timestamps;
save_timestamps_for_in_order_packets_ = in_order_packets_only;
}
size_t min_received_before_ack_decimation() const {
return min_received_before_ack_decimation_;
}
void set_min_received_before_ack_decimation(size_t new_value) {
min_received_before_ack_decimation_ = new_value;
}
void set_ack_frequency(size_t new_value) {
QUICHE_DCHECK_GT(new_value, 0u);
ack_frequency_ = new_value;
}
void set_local_max_ack_delay(QuicTime::Delta local_max_ack_delay) {
local_max_ack_delay_ = local_max_ack_delay;
}
QuicTime ack_timeout() const { return ack_timeout_; }
void OnAckFrequencyFrame(const QuicAckFrequencyFrame& frame);
private:
friend class test::QuicConnectionPeer;
friend class test::QuicReceivedPacketManagerPeer;
friend class test::UberReceivedPacketManagerPeer;
void MaybeUpdateAckTimeoutTo(QuicTime time);
void MaybeUpdateAckFrequency(QuicPacketNumber last_received_packet_number);
QuicTime::Delta GetMaxAckDelay(QuicPacketNumber last_received_packet_number,
const RttStats& rtt_stats) const;
bool AckFrequencyFrameReceived() const {
return last_ack_frequency_frame_sequence_number_ >= 0;
}
void MaybeTrimAckRanges();
QuicPacketNumber peer_least_packet_awaiting_ack_;
QuicAckFrame ack_frame_;
bool ack_frame_updated_;
size_t max_ack_ranges_;
QuicTime time_largest_observed_;
bool save_timestamps_;
bool save_timestamps_for_in_order_packets_;
QuicPacketNumber least_received_packet_number_;
QuicConnectionStats* stats_;
QuicPacketCount num_retransmittable_packets_received_since_last_ack_sent_;
size_t min_received_before_ack_decimation_;
size_t ack_frequency_;
float ack_decimation_delay_;
bool unlimited_ack_decimation_;
bool one_immediate_ack_;
bool ignore_order_;
QuicTime::Delta local_max_ack_delay_;
QuicTime ack_timeout_;
QuicTime time_of_previous_received_packet_;
bool was_last_packet_missing_;
QuicPacketNumber last_sent_largest_acked_;
int64_t last_ack_frequency_frame_sequence_number_;
};
}
#endif
#include "quiche/quic/core/quic_received_packet_manager.h"
#include <algorithm>
#include <limits>
#include <utility>
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace {
const size_t kMaxPacketsAfterNewMissing = 4;
const float kShortAckDecimationDelay = 0.125;
}
QuicReceivedPacketManager::QuicReceivedPacketManager()
: QuicReceivedPacketManager(nullptr) {}
QuicReceivedPacketManager::QuicReceivedPacketManager(QuicConnectionStats* stats)
: ack_frame_updated_(false),
max_ack_ranges_(0),
time_largest_observed_(QuicTime::Zero()),
save_timestamps_(false),
save_timestamps_for_in_order_packets_(false),
stats_(stats),
num_retransmittable_packets_received_since_last_ack_sent_(0),
min_received_before_ack_decimation_(kMinReceivedBeforeAckDecimation),
ack_frequency_(kDefaultRetransmittablePacketsBeforeAck),
ack_decimation_delay_(GetQuicFlag(quic_ack_decimation_delay)),
unlimited_ack_decimation_(false),
one_immediate_ack_(false),
ignore_order_(false),
local_max_ack_delay_(
QuicTime::Delta::FromMilliseconds(GetDefaultDelayedAckTimeMs())),
ack_timeout_(QuicTime::Zero()),
time_of_previous_received_packet_(QuicTime::Zero()),
was_last_packet_missing_(false),
last_ack_frequency_frame_sequence_number_(-1) {}
QuicReceivedPacketManager::~QuicReceivedPacketManager() {}
void QuicReceivedPacketManager::SetFromConfig(const QuicConfig& config,
Perspective perspective) {
if (config.HasClientSentConnectionOption(kAKD3, perspective)) {
ack_decimation_delay_ = kShortAckDecimationDelay;
}
if (config.HasClientSentConnectionOption(kAKDU, perspective)) {
unlimited_ack_decimation_ = true;
}
if (config.HasClientSentConnectionOption(k1ACK, perspective)) {
one_immediate_ack_ = true;
}
}
void QuicReceivedPacketManager::RecordPacketReceived(
const QuicPacketHeader& header, QuicTime receipt_time,
const QuicEcnCodepoint ecn) {
const QuicPacketNumber packet_number = header.packet_number;
QUICHE_DCHECK(IsAwaitingPacket(packet_number))
<< " packet_number:" << packet_number;
was_last_packet_missing_ = IsMissing(packet_number);
if (!ack_frame_updated_) {
ack_frame_.received_packet_times.clear();
}
ack_frame_updated_ = true;
bool packet_reordered = false;
if (LargestAcked(ack_frame_).IsInitialized() &&
LargestAcked(ack_frame_) > packet_number) {
packet_reordered = true;
++stats_->packets_reordered;
stats_->max_sequence_reordering =
std::max(stats_->max_sequence_reordering,
LargestAcked(ack_frame_) - packet_number);
int64_t reordering_time_us =
(receipt_time - time_largest_observed_).ToMicroseconds();
stats_->max_time_reordering_us =
std::max(stats_->max_time_reordering_us, reordering_time_us);
}
if (!LargestAcked(ack_frame_).IsInitialized() ||
packet_number > LargestAcked(ack_frame_)) {
ack_frame_.largest_acked = packet_number;
time_largest_observed_ = receipt_time;
}
ack_frame_.packets.Add(packet_number);
MaybeTrimAckRanges();
if (save_timestamps_) {
if (save_timestamps_for_in_order_packets_ && packet_reordered) {
QUIC_DLOG(WARNING) << "Not saving receive timestamp for packet "
<< packet_number;
} else if (!ack_frame_.received_packet_times.empty() &&
ack_frame_.received_packet_times.back().second > receipt_time) {
QUIC_LOG(WARNING)
<< "Receive time went backwards from: "
<< ack_frame_.received_packet_times.back().second.ToDebuggingValue()
<< " to " << receipt_time.ToDebuggingValue();
} else {
ack_frame_.received_packet_times.push_back(
std::make_pair(packet_number, receipt_time));
}
}
if (ecn != ECN_NOT_ECT) {
if (!ack_frame_.ecn_counters.has_value()) {
ack_frame_.ecn_counters = QuicEcnCounts();
}
switch (ecn) {
case ECN_NOT_ECT:
QUICHE_NOTREACHED();
break;
case ECN_ECT0:
ack_frame_.ecn_counters->ect0++;
break;
case ECN_ECT1:
ack_frame_.ecn_counters->ect1++;
break;
case ECN_CE:
ack_frame_.ecn_counters->ce++;
break;
}
}
if (least_received_packet_number_.IsInitialized()) {
least_received_packet_number_ =
std::min(least_received_packet_number_, packet_number);
} else {
least_received_packet_number_ = packet_number;
}
}
void QuicReceivedPacketManager::MaybeTrimAckRanges() {
while (max_ack_ranges_ > 0 &&
ack_frame_.packets.NumIntervals() > max_ack_ranges_) {
ack_frame_.packets.RemoveSmallestInterval();
}
}
bool QuicReceivedPacketManager::IsMissing(QuicPacketNumber packet_number) {
return LargestAcked(ack_frame_).IsInitialized() &&
packet_number < LargestAcked(ack_frame_) &&
!ack_frame_.packets.Contains(packet_number);
}
bool QuicReceivedPacketManager::IsAwaitingPacket(
QuicPacketNumber packet_number) const {
return quic::IsAwaitingPacket(ack_frame_, packet_number,
peer_least_packet_awaiting_ack_);
}
const QuicFrame QuicReceivedPacketManager::GetUpdatedAckFrame(
QuicTime approximate_now) {
if (time_largest_observed_ == QuicTime::Zero()) {
ack_frame_.ack_delay_time = QuicTime::Delta::Infinite();
} else {
ack_frame_.ack_delay_time = approximate_now < time_largest_observed_
? QuicTime::Delta::Zero()
: approximate_now - time_largest_observed_;
}
const size_t initial_ack_ranges = ack_frame_.packets.NumIntervals();
uint64_t num_iterations = 0;
while (max_ack_ranges_ > 0 &&
ack_frame_.packets.NumIntervals() > max_ack_ranges_) {
num_iterations++;
QUIC_BUG_IF(quic_rpm_too_many_ack_ranges, (num_iterations % 100000) == 0)
<< "Too many ack ranges to remove, possibly a dead loop. "
"initial_ack_ranges:"
<< initial_ack_ranges << " max_ack_ranges:" << max_ack_ranges_
<< ", current_ack_ranges:" << ack_frame_.packets.NumIntervals()
<< " num_iterations:" << num_iterations;
ack_frame_.packets.RemoveSmallestInterval();
}
for (auto it = ack_frame_.received_packet_times.begin();
it != ack_frame_.received_packet_times.end();) {
if (LargestAcked(ack_frame_) - it->first >=
std::numeric_limits<uint8_t>::max()) {
it = ack_frame_.received_packet_times.erase(it);
} else {
++it;
}
}
#if QUIC_FRAME_DEBUG
QuicFrame frame = QuicFrame(&ack_frame_);
frame.delete_forbidden = true;
return frame;
#else
return QuicFrame(&ack_frame_);
#endif
}
void QuicReceivedPacketManager::DontWaitForPacketsBefore(
QuicPacketNumber least_unacked) {
if (!least_unacked.IsInitialized()) {
return;
}
QUICHE_DCHECK(!peer_least_packet_awaiting_ack_.IsInitialized() ||
peer_least_packet_awaiting_ack_ <= least_unacked);
if (!peer_least_packet_awaiting_ack_.IsInitialized() ||
least_unacked > peer_least_packet_awaiting_ack_) {
peer_least_packet_awaiting_ack_ = least_unacked;
bool packets_updated = ack_frame_.packets.RemoveUpTo(least_unacked);
if (packets_updated) {
ack_frame_updated_ = true;
}
}
QUICHE_DCHECK(ack_frame_.packets.Empty() ||
!peer_least_packet_awaiting_ack_.IsInitialized() ||
ack_frame_.packets.Min() >= peer_least_packet_awaiting_ack_);
}
QuicTime::Delta QuicReceivedPacketManager::GetMaxAckDelay(
QuicPacketNumber last_received_packet_number,
const RttStats& rtt_stats) const {
if (AckFrequencyFrameReceived() ||
last_received_packet_number < PeerFirstSendingPacketNumber() +
min_received_before_ack_decimation_) {
return local_max_ack_delay_;
}
QuicTime::Delta ack_delay = std::min(
local_max_ack_delay_, rtt_stats.min_rtt() * ack_decimation_delay_);
return std::max(ack_delay, kAlarmGranularity);
}
void QuicReceivedPacketManager::MaybeUpdateAckFrequency(
QuicPacketNumber last_received_packet_number) {
if (AckFrequencyFrameReceived()) {
return;
}
if (last_received_packet_number <
PeerFirstSendingPacketNumber() + min_received_before_ack_decimation_) {
return;
}
ack_frequency_ = unlimited_ack_decimation_
? std::numeric_limits<size_t>::max()
: kMaxRetransmittablePacketsBeforeAck;
}
void QuicReceivedPacketManager::MaybeUpdateAckTimeout(
bool should_last_packet_instigate_acks,
QuicPacketNumber last_received_packet_number,
QuicTime last_packet_receipt_time, QuicTime now,
const RttStats* rtt_stats) {
if (!ack_frame_updated_) {
return;
}
if (!ignore_order_ && was_last_packet_missing_ &&
last_sent_largest_acked_.IsInitialized() &&
last_received_packet_number < last_sent_largest_acked_) {
ack_timeout_ = now;
return;
}
if (!should_last_packet_instigate_acks) {
return;
}
++num_retransmittable_packets_received_since_last_ack_sent_;
MaybeUpdateAckFrequency(last_received_packet_number);
if (num_retransmittable_packets_received_since_last_ack_sent_ >=
ack_frequency_) {
ack_timeout_ = now;
return;
}
if (!ignore_order_ && HasNewMissingPackets()) {
ack_timeout_ = now;
return;
}
const QuicTime updated_ack_time = std::max(
now, std::min(last_packet_receipt_time, now) +
GetMaxAckDelay(last_received_packet_number, *rtt_stats));
if (!ack_timeout_.IsInitialized() || ack_timeout_ > updated_ack_time) {
ack_timeout_ = updated_ack_time;
}
}
void QuicReceivedPacketManager::ResetAckStates() {
ack_frame_updated_ = false;
ack_timeout_ = QuicTime::Zero();
num_retransmittable_packets_received_since_last_ack_sent_ = 0;
last_sent_largest_acked_ = LargestAcked(ack_frame_);
}
bool QuicReceivedPacketManager::HasMissingPackets() const {
if (ack_frame_.packets.Empty()) {
return false;
}
if (ack_frame_.packets.NumIntervals() > 1) {
return true;
}
return peer_least_packet_awaiting_ack_.IsInitialized() &&
ack_frame_.packets.Min() > peer_least_packet_awaiting_ack_;
}
bool QuicReceivedPacketManager::HasNewMissingPackets() const {
if (one_immediate_ack_) {
return HasMissingPackets() && ack_frame_.packets.LastIntervalLength() == 1;
}
return HasMissingPackets() &&
ack_frame_.packets.LastIntervalLength() <= kMaxPacketsAfterNewMissing;
}
bool QuicReceivedPacketManager::ack_frame_updated() const {
return ack_frame_updated_;
}
QuicPacketNumber QuicReceivedPacketManager::GetLargestObserved() const {
return LargestAcked(ack_frame_);
}
QuicPacketNumber QuicReceivedPacketManager::PeerFirstSendingPacketNumber()
const {
if (!least_received_packet_number_.IsInitialized()) {
QUIC_BUG(quic_bug_10849_1) << "No packets have been received yet";
return QuicPacketNumber(1);
}
return least_received_packet_number_;
}
bool QuicReceivedPacketManager::IsAckFrameEmpty() const {
return ack_frame_.packets.Empty();
}
void QuicReceivedPacketManager::OnAckFrequencyFrame(
const QuicAckFrequencyFrame& frame) {
int64_t new_sequence_number = frame.sequence_number;
if (new_sequence_number <= last_ack_frequency_frame_sequence_number_) {
return;
}
last_ack_frequency_frame_sequence_number_ = new_sequence_number;
ack_frequency_ = frame.packet_tolerance;
local_max_ack_delay_ = frame.max_ack_delay;
ignore_order_ = frame.ignore_order;
}
} | #include "quiche/quic/core/quic_received_packet_manager.h"
#include <algorithm>
#include <cstddef>
#include <ostream>
#include <vector>
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
namespace quic {
namespace test {
class QuicReceivedPacketManagerPeer {
public:
static void SetOneImmediateAck(QuicReceivedPacketManager* manager,
bool one_immediate_ack) {
manager->one_immediate_ack_ = one_immediate_ack;
}
static void SetAckDecimationDelay(QuicReceivedPacketManager* manager,
float ack_decimation_delay) {
manager->ack_decimation_delay_ = ack_decimation_delay;
}
};
namespace {
const bool kInstigateAck = true;
const QuicTime::Delta kMinRttMs = QuicTime::Delta::FromMilliseconds(40);
const QuicTime::Delta kDelayedAckTime =
QuicTime::Delta::FromMilliseconds(GetDefaultDelayedAckTimeMs());
class QuicReceivedPacketManagerTest : public QuicTest {
protected:
QuicReceivedPacketManagerTest() : received_manager_(&stats_) {
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
rtt_stats_.UpdateRtt(kMinRttMs, QuicTime::Delta::Zero(), QuicTime::Zero());
received_manager_.set_save_timestamps(true, false);
}
void RecordPacketReceipt(uint64_t packet_number) {
RecordPacketReceipt(packet_number, QuicTime::Zero());
}
void RecordPacketReceipt(uint64_t packet_number, QuicTime receipt_time) {
RecordPacketReceipt(packet_number, receipt_time, ECN_NOT_ECT);
}
void RecordPacketReceipt(uint64_t packet_number, QuicTime receipt_time,
QuicEcnCodepoint ecn_codepoint) {
QuicPacketHeader header;
header.packet_number = QuicPacketNumber(packet_number);
received_manager_.RecordPacketReceived(header, receipt_time, ecn_codepoint);
}
bool HasPendingAck() {
return received_manager_.ack_timeout().IsInitialized();
}
void MaybeUpdateAckTimeout(bool should_last_packet_instigate_acks,
uint64_t last_received_packet_number) {
received_manager_.MaybeUpdateAckTimeout(
should_last_packet_instigate_acks,
QuicPacketNumber(last_received_packet_number),
clock_.ApproximateNow(),
clock_.ApproximateNow(), &rtt_stats_);
}
void CheckAckTimeout(QuicTime time) {
QUICHE_DCHECK(HasPendingAck());
QUICHE_DCHECK_EQ(received_manager_.ack_timeout(), time);
if (time <= clock_.ApproximateNow()) {
received_manager_.ResetAckStates();
QUICHE_DCHECK(!HasPendingAck());
}
}
MockClock clock_;
RttStats rtt_stats_;
QuicConnectionStats stats_;
QuicReceivedPacketManager received_manager_;
};
TEST_F(QuicReceivedPacketManagerTest, DontWaitForPacketsBefore) {
QuicPacketHeader header;
header.packet_number = QuicPacketNumber(2u);
received_manager_.RecordPacketReceived(header, QuicTime::Zero(), ECN_NOT_ECT);
header.packet_number = QuicPacketNumber(7u);
received_manager_.RecordPacketReceived(header, QuicTime::Zero(), ECN_NOT_ECT);
EXPECT_TRUE(received_manager_.IsAwaitingPacket(QuicPacketNumber(3u)));
EXPECT_TRUE(received_manager_.IsAwaitingPacket(QuicPacketNumber(6u)));
received_manager_.DontWaitForPacketsBefore(QuicPacketNumber(4));
EXPECT_FALSE(received_manager_.IsAwaitingPacket(QuicPacketNumber(3u)));
EXPECT_TRUE(received_manager_.IsAwaitingPacket(QuicPacketNumber(6u)));
}
TEST_F(QuicReceivedPacketManagerTest, GetUpdatedAckFrame) {
QuicPacketHeader header;
header.packet_number = QuicPacketNumber(2u);
QuicTime two_ms = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
EXPECT_FALSE(received_manager_.ack_frame_updated());
received_manager_.RecordPacketReceived(header, two_ms, ECN_NOT_ECT);
EXPECT_TRUE(received_manager_.ack_frame_updated());
QuicFrame ack = received_manager_.GetUpdatedAckFrame(QuicTime::Zero());
received_manager_.ResetAckStates();
EXPECT_FALSE(received_manager_.ack_frame_updated());
EXPECT_EQ(QuicTime::Delta::Zero(), ack.ack_frame->ack_delay_time);
EXPECT_EQ(1u, ack.ack_frame->received_packet_times.size());
QuicTime four_ms = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(4);
ack = received_manager_.GetUpdatedAckFrame(four_ms);
received_manager_.ResetAckStates();
EXPECT_FALSE(received_manager_.ack_frame_updated());
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(2),
ack.ack_frame->ack_delay_time);
EXPECT_EQ(1u, ack.ack_frame->received_packet_times.size());
header.packet_number = QuicPacketNumber(999u);
received_manager_.RecordPacketReceived(header, two_ms, ECN_NOT_ECT);
header.packet_number = QuicPacketNumber(4u);
received_manager_.RecordPacketReceived(header, two_ms, ECN_NOT_ECT);
header.packet_number = QuicPacketNumber(1000u);
received_manager_.RecordPacketReceived(header, two_ms, ECN_NOT_ECT);
EXPECT_TRUE(received_manager_.ack_frame_updated());
ack = received_manager_.GetUpdatedAckFrame(two_ms);
received_manager_.ResetAckStates();
EXPECT_FALSE(received_manager_.ack_frame_updated());
EXPECT_EQ(2u, ack.ack_frame->received_packet_times.size());
}
TEST_F(QuicReceivedPacketManagerTest, UpdateReceivedConnectionStats) {
EXPECT_FALSE(received_manager_.ack_frame_updated());
RecordPacketReceipt(1);
EXPECT_TRUE(received_manager_.ack_frame_updated());
RecordPacketReceipt(6);
RecordPacketReceipt(2,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1));
EXPECT_EQ(4u, stats_.max_sequence_reordering);
EXPECT_EQ(1000, stats_.max_time_reordering_us);
EXPECT_EQ(1u, stats_.packets_reordered);
}
TEST_F(QuicReceivedPacketManagerTest, LimitAckRanges) {
received_manager_.set_max_ack_ranges(10);
EXPECT_FALSE(received_manager_.ack_frame_updated());
for (int i = 0; i < 100; ++i) {
RecordPacketReceipt(1 + 2 * i);
EXPECT_TRUE(received_manager_.ack_frame_updated());
received_manager_.GetUpdatedAckFrame(QuicTime::Zero());
EXPECT_GE(10u, received_manager_.ack_frame().packets.NumIntervals());
EXPECT_EQ(QuicPacketNumber(1u + 2 * i),
received_manager_.ack_frame().packets.Max());
for (int j = 0; j < std::min(10, i + 1); ++j) {
ASSERT_GE(i, j);
EXPECT_TRUE(received_manager_.ack_frame().packets.Contains(
QuicPacketNumber(1 + (i - j) * 2)));
if (i > j) {
EXPECT_FALSE(received_manager_.ack_frame().packets.Contains(
QuicPacketNumber((i - j) * 2)));
}
}
}
}
TEST_F(QuicReceivedPacketManagerTest, TrimAckRangesEarly) {
const size_t kMaxAckRanges = 10;
received_manager_.set_max_ack_ranges(kMaxAckRanges);
for (size_t i = 0; i < kMaxAckRanges + 10; ++i) {
RecordPacketReceipt(1 + 2 * i);
if (i < kMaxAckRanges) {
EXPECT_EQ(i + 1, received_manager_.ack_frame().packets.NumIntervals());
} else {
EXPECT_EQ(kMaxAckRanges,
received_manager_.ack_frame().packets.NumIntervals());
}
}
}
TEST_F(QuicReceivedPacketManagerTest, IgnoreOutOfOrderTimestamps) {
EXPECT_FALSE(received_manager_.ack_frame_updated());
RecordPacketReceipt(1, QuicTime::Zero());
EXPECT_TRUE(received_manager_.ack_frame_updated());
EXPECT_EQ(1u, received_manager_.ack_frame().received_packet_times.size());
RecordPacketReceipt(2,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1));
EXPECT_EQ(2u, received_manager_.ack_frame().received_packet_times.size());
RecordPacketReceipt(3, QuicTime::Zero());
EXPECT_EQ(2u, received_manager_.ack_frame().received_packet_times.size());
}
TEST_F(QuicReceivedPacketManagerTest, IgnoreOutOfOrderPackets) {
received_manager_.set_save_timestamps(true, true);
EXPECT_FALSE(received_manager_.ack_frame_updated());
RecordPacketReceipt(1, QuicTime::Zero());
EXPECT_TRUE(received_manager_.ack_frame_updated());
EXPECT_EQ(1u, received_manager_.ack_frame().received_packet_times.size());
RecordPacketReceipt(4,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1));
EXPECT_EQ(2u, received_manager_.ack_frame().received_packet_times.size());
RecordPacketReceipt(3,
QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(3));
EXPECT_EQ(2u, received_manager_.ack_frame().received_packet_times.size());
}
TEST_F(QuicReceivedPacketManagerTest, HasMissingPackets) {
EXPECT_QUIC_BUG(received_manager_.PeerFirstSendingPacketNumber(),
"No packets have been received yet");
RecordPacketReceipt(4, QuicTime::Zero());
EXPECT_EQ(QuicPacketNumber(4),
received_manager_.PeerFirstSendingPacketNumber());
EXPECT_FALSE(received_manager_.HasMissingPackets());
RecordPacketReceipt(3, QuicTime::Zero());
EXPECT_FALSE(received_manager_.HasMissingPackets());
EXPECT_EQ(QuicPacketNumber(3),
received_manager_.PeerFirstSendingPacketNumber());
RecordPacketReceipt(1, QuicTime::Zero());
EXPECT_EQ(QuicPacketNumber(1),
received_manager_.PeerFirstSendingPacketNumber());
EXPECT_TRUE(received_manager_.HasMissingPackets());
RecordPacketReceipt(2, QuicTime::Zero());
EXPECT_EQ(QuicPacketNumber(1),
received_manager_.PeerFirstSendingPacketNumber());
EXPECT_FALSE(received_manager_.HasMissingPackets());
}
TEST_F(QuicReceivedPacketManagerTest, OutOfOrderReceiptCausesAckSent) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 5);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(6, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 6);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 2);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 1);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(7, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 7);
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest, OutOfOrderReceiptCausesAckSent1Ack) {
QuicReceivedPacketManagerPeer::SetOneImmediateAck(&received_manager_, true);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 5);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(6, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 6);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 2);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 1);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(7, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 7);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
TEST_F(QuicReceivedPacketManagerTest, OutOfOrderAckReceiptCausesNoAck) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 2);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 1);
EXPECT_FALSE(HasPendingAck());
}
TEST_F(QuicReceivedPacketManagerTest, AckReceiptCausesAckSend) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 1);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 2);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
clock_.AdvanceTime(kDelayedAckTime);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 4);
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(!kInstigateAck, 5);
EXPECT_FALSE(HasPendingAck());
}
TEST_F(QuicReceivedPacketManagerTest, AckSentEveryNthPacket) {
EXPECT_FALSE(HasPendingAck());
received_manager_.set_ack_frequency(3);
for (size_t i = 1; i <= 39; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 3 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
}
TEST_F(QuicReceivedPacketManagerTest, AckDecimationReducesAcks) {
EXPECT_FALSE(HasPendingAck());
received_manager_.set_min_received_before_ack_decimation(10);
for (size_t i = 1; i <= 29; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i <= 10) {
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
continue;
}
if (i == 20) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kMinRttMs * 0.25);
}
}
RecordPacketReceipt(30, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 30);
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest, SendDelayedAckDecimation) {
EXPECT_FALSE(HasPendingAck());
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.25;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (uint64_t i = 1; i < 10; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest, SendDelayedAckDecimationMin1ms) {
EXPECT_FALSE(HasPendingAck());
rtt_stats_.UpdateRtt(kAlarmGranularity, QuicTime::Delta::Zero(),
clock_.ApproximateNow());
QuicTime ack_time = clock_.ApproximateNow() + kAlarmGranularity;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (uint64_t i = 1; i < 10; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest,
SendDelayedAckDecimationUnlimitedAggregation) {
EXPECT_FALSE(HasPendingAck());
QuicConfig config;
QuicTagVector connection_options;
connection_options.push_back(kAKDU);
config.SetConnectionOptionsToSend(connection_options);
received_manager_.SetFromConfig(config, Perspective::IS_CLIENT);
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.25;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (int i = 1; i <= 18; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(ack_time);
}
TEST_F(QuicReceivedPacketManagerTest, SendDelayedAckDecimationEighthRtt) {
EXPECT_FALSE(HasPendingAck());
QuicReceivedPacketManagerPeer::SetAckDecimationDelay(&received_manager_,
0.125);
QuicTime ack_time = clock_.ApproximateNow() + kMinRttMs * 0.125;
uint64_t kFirstDecimatedPacket = 101;
for (uint64_t i = 1; i < kFirstDecimatedPacket; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 2 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
RecordPacketReceipt(kFirstDecimatedPacket, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket);
CheckAckTimeout(ack_time);
for (uint64_t i = 1; i < 10; ++i) {
RecordPacketReceipt(kFirstDecimatedPacket + i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, kFirstDecimatedPacket + i);
}
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest,
UpdateMaxAckDelayAndAckFrequencyFromAckFrequencyFrame) {
EXPECT_FALSE(HasPendingAck());
QuicAckFrequencyFrame frame;
frame.max_ack_delay = QuicTime::Delta::FromMilliseconds(10);
frame.packet_tolerance = 5;
received_manager_.OnAckFrequencyFrame(frame);
for (int i = 1; i <= 50; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % frame.packet_tolerance == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + frame.max_ack_delay);
}
}
}
TEST_F(QuicReceivedPacketManagerTest,
DisableOutOfOrderAckByIgnoreOrderFromAckFrequencyFrame) {
EXPECT_FALSE(HasPendingAck());
QuicAckFrequencyFrame frame;
frame.max_ack_delay = kDelayedAckTime;
frame.packet_tolerance = 2;
frame.ignore_order = true;
received_manager_.OnAckFrequencyFrame(frame);
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 4);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 5);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(3, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 3);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 2);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 1);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
TEST_F(QuicReceivedPacketManagerTest,
DisableMissingPaketsAckByIgnoreOrderFromAckFrequencyFrame) {
EXPECT_FALSE(HasPendingAck());
QuicConfig config;
config.SetConnectionOptionsToSend({kAFFE});
received_manager_.SetFromConfig(config, Perspective::IS_CLIENT);
QuicAckFrequencyFrame frame;
frame.max_ack_delay = kDelayedAckTime;
frame.packet_tolerance = 2;
frame.ignore_order = true;
received_manager_.OnAckFrequencyFrame(frame);
RecordPacketReceipt(1, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 1);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(2, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 2);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 4);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
RecordPacketReceipt(5, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 5);
CheckAckTimeout(clock_.ApproximateNow());
RecordPacketReceipt(7, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 7);
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
TEST_F(QuicReceivedPacketManagerTest,
AckDecimationDisabledWhenAckFrequencyFrameIsReceived) {
EXPECT_FALSE(HasPendingAck());
QuicAckFrequencyFrame frame;
frame.max_ack_delay = kDelayedAckTime;
frame.packet_tolerance = 3;
frame.ignore_order = true;
received_manager_.OnAckFrequencyFrame(frame);
uint64_t kFirstDecimatedPacket = 101;
uint64_t FiftyPacketsAfterAckDecimation = kFirstDecimatedPacket + 50;
for (uint64_t i = 1; i < FiftyPacketsAfterAckDecimation; ++i) {
RecordPacketReceipt(i, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, i);
if (i % 3 == 0) {
CheckAckTimeout(clock_.ApproximateNow());
} else {
CheckAckTimeout(clock_.ApproximateNow() + kDelayedAckTime);
}
}
}
TEST_F(QuicReceivedPacketManagerTest, UpdateAckTimeoutOnPacketReceiptTime) {
EXPECT_FALSE(HasPendingAck());
QuicTime packet_receipt_time3 = clock_.ApproximateNow();
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(10));
RecordPacketReceipt(3, packet_receipt_time3);
received_manager_.MaybeUpdateAckTimeout(
kInstigateAck, QuicPacketNumber(3),
packet_receipt_time3,
clock_.ApproximateNow(), &rtt_stats_);
CheckAckTimeout(packet_receipt_time3 + kDelayedAckTime);
RecordPacketReceipt(4, clock_.ApproximateNow());
MaybeUpdateAckTimeout(kInstigateAck, 4);
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest,
UpdateAckTimeoutOnPacketReceiptTimeLongerQueuingTime) {
EXPECT_FALSE(HasPendingAck());
QuicTime packet_receipt_time3 = clock_.ApproximateNow();
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(100));
RecordPacketReceipt(3, packet_receipt_time3);
received_manager_.MaybeUpdateAckTimeout(
kInstigateAck, QuicPacketNumber(3),
packet_receipt_time3,
clock_.ApproximateNow(), &rtt_stats_);
CheckAckTimeout(clock_.ApproximateNow());
}
TEST_F(QuicReceivedPacketManagerTest, CountEcnPackets) {
EXPECT_FALSE(HasPendingAck());
RecordPacketReceipt(3, QuicTime::Zero(), ECN_NOT_ECT);
RecordPacketReceipt(4, QuicTime::Zero(), ECN_ECT0);
RecordPacketReceipt(5, QuicTime::Zero(), ECN_ECT1);
RecordPacketReceipt(6, QuicTime::Zero(), ECN_CE);
QuicFrame ack = received_manager_.GetUpdatedAckFrame(QuicTime::Zero());
EXPECT_TRUE(ack.ack_frame->ecn_counters.has_value());
EXPECT_EQ(ack.ack_frame->ecn_counters->ect0, 1);
EXPECT_EQ(ack.ack_frame->ecn_counters->ect1, 1);
EXPECT_EQ(ack.ack_frame->ecn_counters->ce, 1);
}
}
}
} |
270 | cpp | google/quiche | quic_sent_packet_manager | quiche/quic/core/quic_sent_packet_manager.cc | quiche/quic/core/quic_sent_packet_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_SENT_PACKET_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_SENT_PACKET_MANAGER_H_
#include <cstddef>
#include <cstdint>
#include <map>
#include <memory>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/congestion_control/pacing_sender.h"
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/congestion_control/send_algorithm_interface.h"
#include "quiche/quic/core/congestion_control/uber_loss_algorithm.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_sustained_bandwidth_recorder.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_transmission_info.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_unacked_packet_map.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
namespace test {
class QuicConnectionPeer;
class QuicSentPacketManagerPeer;
}
class QuicClock;
class QuicConfig;
struct QuicConnectionStats;
class QUICHE_EXPORT QuicSentPacketManager {
public:
class QUICHE_EXPORT DebugDelegate {
public:
struct QUICHE_EXPORT SendParameters {
CongestionControlType congestion_control_type;
bool use_pacing;
QuicPacketCount initial_congestion_window;
};
virtual ~DebugDelegate() {}
virtual void OnSpuriousPacketRetransmission(
TransmissionType , QuicByteCount ) {}
virtual void OnIncomingAck(QuicPacketNumber ,
EncryptionLevel ,
const QuicAckFrame& ,
QuicTime ,
QuicPacketNumber ,
bool ,
QuicPacketNumber ) {
}
virtual void OnPacketLoss(QuicPacketNumber ,
EncryptionLevel ,
TransmissionType ,
QuicTime ) {}
virtual void OnApplicationLimited() {}
virtual void OnAdjustNetworkParameters(QuicBandwidth ,
QuicTime::Delta ,
QuicByteCount ,
QuicByteCount ) {}
virtual void OnOvershootingDetected() {}
virtual void OnConfigProcessed(const SendParameters& ) {}
virtual void OnSendAlgorithmChanged(CongestionControlType ) {}
};
class QUICHE_EXPORT NetworkChangeVisitor {
public:
virtual ~NetworkChangeVisitor() {}
virtual void OnCongestionChange() = 0;
virtual void OnPathMtuIncreased(QuicPacketLength packet_size) = 0;
virtual void OnInFlightEcnPacketAcked() = 0;
virtual void OnInvalidEcnFeedback() = 0;
};
enum RetransmissionTimeoutMode {
HANDSHAKE_MODE,
LOSS_MODE,
PTO_MODE,
};
QuicSentPacketManager(Perspective perspective, const QuicClock* clock,
QuicRandom* random, QuicConnectionStats* stats,
CongestionControlType congestion_control_type);
QuicSentPacketManager(const QuicSentPacketManager&) = delete;
QuicSentPacketManager& operator=(const QuicSentPacketManager&) = delete;
virtual ~QuicSentPacketManager();
virtual void SetFromConfig(const QuicConfig& config);
void ReserveUnackedPacketsInitialCapacity(int initial_capacity) {
unacked_packets_.ReserveInitialCapacity(initial_capacity);
}
void ApplyConnectionOptions(const QuicTagVector& connection_options);
void ResumeConnectionState(
const CachedNetworkParameters& cached_network_params,
bool max_bandwidth_resumption);
void SetMaxPacingRate(QuicBandwidth max_pacing_rate) {
pacing_sender_.set_max_pacing_rate(max_pacing_rate);
}
QuicTime::Delta GetDeferredSendAlarmDelay() const {
return deferred_send_alarm_delay_.value_or(QuicTime::Delta::Zero());
}
void SetDeferredSendAlarmDelay(QuicTime::Delta delay) {
deferred_send_alarm_delay_ = delay;
}
QuicBandwidth MaxPacingRate() const {
return pacing_sender_.max_pacing_rate();
}
void SetHandshakeConfirmed();
void MarkZeroRttPacketsForRetransmission();
void MarkInitialPacketsForRetransmission();
void AdjustNetworkParameters(
const SendAlgorithmInterface::NetworkParams& params);
void SetLossDetectionTuner(
std::unique_ptr<LossDetectionTunerInterface> tuner);
void OnConfigNegotiated();
void OnConnectionClosed();
bool MaybeRetransmitOldestPacket(TransmissionType type);
void NeuterUnencryptedPackets();
bool HasUnackedCryptoPackets() const {
return unacked_packets_.HasPendingCryptoPackets();
}
bool HasInFlightPackets() const {
return unacked_packets_.HasInFlightPackets();
}
QuicPacketNumber GetLeastUnacked() const {
return unacked_packets_.GetLeastUnacked();
}
bool OnPacketSent(SerializedPacket* mutable_packet, QuicTime sent_time,
TransmissionType transmission_type,
HasRetransmittableData has_retransmittable_data,
bool measure_rtt, QuicEcnCodepoint ecn_codepoint);
bool CanSendAckFrequency() const;
QuicAckFrequencyFrame GetUpdatedAckFrequencyFrame() const;
RetransmissionTimeoutMode OnRetransmissionTimeout();
QuicTime::Delta TimeUntilSend(QuicTime now) const;
const QuicTime GetRetransmissionTime() const;
const QuicTime::Delta GetPathDegradingDelay() const;
const QuicTime::Delta GetNetworkBlackholeDelay(
int8_t num_rtos_for_blackhole_detection) const;
QuicTime::Delta GetMtuReductionDelay(
int8_t num_rtos_for_blackhole_detection) const;
const RttStats* GetRttStats() const { return &rtt_stats_; }
void SetRttStats(const RttStats& rtt_stats) {
rtt_stats_.CloneFrom(rtt_stats);
}
QuicBandwidth BandwidthEstimate() const {
return send_algorithm_->BandwidthEstimate();
}
const QuicSustainedBandwidthRecorder* SustainedBandwidthRecorder() const {
return &sustained_bandwidth_recorder_;
}
QuicPacketCount GetCongestionWindowInTcpMss() const {
return send_algorithm_->GetCongestionWindow() / kDefaultTCPMSS;
}
QuicPacketCount EstimateMaxPacketsInFlight(
QuicByteCount max_packet_length) const {
return send_algorithm_->GetCongestionWindow() / max_packet_length;
}
QuicByteCount GetCongestionWindowInBytes() const {
return send_algorithm_->GetCongestionWindow();
}
QuicByteCount GetAvailableCongestionWindowInBytes() const;
QuicBandwidth GetPacingRate() const {
return send_algorithm_->PacingRate(GetBytesInFlight());
}
QuicPacketCount GetSlowStartThresholdInTcpMss() const {
return send_algorithm_->GetSlowStartThreshold() / kDefaultTCPMSS;
}
QuicTime::Delta GetSlowStartDuration() const;
std::string GetDebugState() const;
QuicByteCount GetBytesInFlight() const {
return unacked_packets_.bytes_in_flight();
}
std::unique_ptr<SendAlgorithmInterface> OnConnectionMigration(
bool reset_send_algorithm);
void OnAckFrameStart(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time,
QuicTime ack_receive_time);
void OnAckRange(QuicPacketNumber start, QuicPacketNumber end);
void OnAckTimestamp(QuicPacketNumber packet_number, QuicTime timestamp);
AckResult OnAckFrameEnd(QuicTime ack_receive_time,
QuicPacketNumber ack_packet_number,
EncryptionLevel ack_decrypted_level,
const std::optional<QuicEcnCounts>& ecn_counts);
void EnableMultiplePacketNumberSpacesSupport();
void SetDebugDelegate(DebugDelegate* debug_delegate);
QuicPacketNumber GetLargestObserved() const {
return unacked_packets_.largest_acked();
}
QuicPacketNumber GetLargestAckedPacket(
EncryptionLevel decrypted_packet_level) const;
QuicPacketNumber GetLargestSentPacket() const {
return unacked_packets_.largest_sent_packet();
}
QuicPacketNumber GetLeastPacketAwaitedByPeer(
EncryptionLevel encryption_level) const;
QuicPacketNumber GetLargestPacketPeerKnowsIsAcked(
EncryptionLevel decrypted_packet_level) const;
void SetNetworkChangeVisitor(NetworkChangeVisitor* visitor) {
QUICHE_DCHECK(!network_change_visitor_);
QUICHE_DCHECK(visitor);
network_change_visitor_ = visitor;
}
bool InSlowStart() const { return send_algorithm_->InSlowStart(); }
size_t GetConsecutivePtoCount() const { return consecutive_pto_count_; }
void OnApplicationLimited();
const SendAlgorithmInterface* GetSendAlgorithm() const {
return send_algorithm_.get();
}
bool EnableECT0() { return send_algorithm_->EnableECT0(); }
bool EnableECT1() { return send_algorithm_->EnableECT1(); }
void SetSessionNotifier(SessionNotifierInterface* session_notifier) {
unacked_packets_.SetSessionNotifier(session_notifier);
}
NextReleaseTimeResult GetNextReleaseTime() const;
QuicPacketCount initial_congestion_window() const {
return initial_congestion_window_;
}
QuicPacketNumber largest_packet_peer_knows_is_acked() const {
QUICHE_DCHECK(!supports_multiple_packet_number_spaces());
return largest_packet_peer_knows_is_acked_;
}
size_t pending_timer_transmission_count() const {
return pending_timer_transmission_count_;
}
QuicTime::Delta peer_max_ack_delay() const { return peer_max_ack_delay_; }
void set_peer_max_ack_delay(QuicTime::Delta peer_max_ack_delay) {
QUICHE_DCHECK_LE(
peer_max_ack_delay,
(QuicTime::Delta::FromMilliseconds(kMinRetransmissionTimeMs) * 0.5));
peer_max_ack_delay_ = peer_max_ack_delay;
}
const QuicUnackedPacketMap& unacked_packets() const {
return unacked_packets_;
}
const UberLossAlgorithm* uber_loss_algorithm() const {
return &uber_loss_algorithm_;
}
void SetSendAlgorithm(CongestionControlType congestion_control_type);
void SetSendAlgorithm(SendAlgorithmInterface* send_algorithm);
void MaybeSendProbePacket();
void EnableIetfPtoAndLossDetection();
void RetransmitDataOfSpaceIfAny(PacketNumberSpace space);
bool IsLessThanThreePTOs(QuicTime::Delta timeout) const;
QuicTime::Delta GetPtoDelay() const;
bool supports_multiple_packet_number_spaces() const {
return unacked_packets_.supports_multiple_packet_number_spaces();
}
bool handshake_mode_disabled() const { return handshake_mode_disabled_; }
bool zero_rtt_packet_acked() const { return zero_rtt_packet_acked_; }
bool one_rtt_packet_acked() const { return one_rtt_packet_acked_; }
void OnUserAgentIdKnown() { loss_algorithm_->OnUserAgentIdKnown(); }
QuicTime GetEarliestPacketSentTimeForPto(
PacketNumberSpace* packet_number_space) const;
void set_num_ptos_for_path_degrading(int num_ptos_for_path_degrading) {
num_ptos_for_path_degrading_ = num_ptos_for_path_degrading;
}
void SetInitialRtt(QuicTime::Delta rtt, bool trusted);
private:
friend class test::QuicConnectionPeer;
friend class test::QuicSentPacketManagerPeer;
RetransmissionTimeoutMode GetRetransmissionMode() const;
void RetransmitCryptoPackets();
const QuicTime::Delta GetCryptoRetransmissionDelay() const;
const QuicTime::Delta GetProbeTimeoutDelay(PacketNumberSpace space) const;
bool MaybeUpdateRTT(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time,
QuicTime ack_receive_time);
void InvokeLossDetection(QuicTime time);
void MaybeInvokeCongestionEvent(bool rtt_updated,
QuicByteCount prior_in_flight,
QuicTime event_time,
std::optional<QuicEcnCounts> ecn_counts,
const QuicEcnCounts& previous_counts);
void MarkPacketHandled(QuicPacketNumber packet_number,
QuicTransmissionInfo* info, QuicTime ack_receive_time,
QuicTime::Delta ack_delay_time,
QuicTime receive_timestamp);
void MarkForRetransmission(QuicPacketNumber packet_number,
TransmissionType transmission_type);
void PostProcessNewlyAckedPackets(QuicPacketNumber ack_packet_number,
EncryptionLevel ack_decrypted_level,
const QuicAckFrame& ack_frame,
QuicTime ack_receive_time, bool rtt_updated,
QuicByteCount prior_bytes_in_flight,
std::optional<QuicEcnCounts> ecn_counts);
void RecordOneSpuriousRetransmission(const QuicTransmissionInfo& info);
void NeuterHandshakePackets();
bool ShouldAddMaxAckDelay(PacketNumberSpace space) const;
QuicTime::Delta GetNConsecutiveRetransmissionTimeoutDelay(
int num_timeouts) const;
bool PeerCompletedAddressValidation() const;
void OnAckFrequencyFrameSent(
const QuicAckFrequencyFrame& ack_frequency_frame);
void OnAckFrequencyFrameAcked(
const QuicAckFrequencyFrame& ack_frequency_frame);
bool IsEcnFeedbackValid(PacketNumberSpace space,
const std::optional<QuicEcnCounts>& ecn_counts,
QuicPacketCount newly_acked_ect0,
QuicPacketCount newly_acked_ect1);
void RecordEcnMarkingSent(QuicEcnCodepoint ecn_codepoint,
EncryptionLevel level);
QuicUnackedPacketMap unacked_packets_;
const QuicClock* clock_;
QuicRandom* random_;
QuicConnectionStats* stats_;
DebugDelegate* debug_delegate_;
NetworkChangeVisitor* network_change_visitor_;
QuicPacketCount initial_congestion_window_;
RttStats rtt_stats_;
std::unique_ptr<SendAlgorithmInterface> send_algorithm_;
LossDetectionInterface* loss_algorithm_;
UberLossAlgorithm uber_loss_algorithm_;
size_t consecutive_crypto_retransmission_count_;
size_t pending_timer_transmission_count_;
bool using_pacing_;
bool conservative_handshake_retransmits_;
AckedPacketVector packets_acked_;
LostPacketVector packets_lost_;
QuicPacketNumber largest_newly_acked_;
QuicPacketLength largest_mtu_acked_;
PacingSender pacing_sender_;
bool handshake_finished_;
QuicSustainedBandwidthRecorder sustained_bandwidth_recorder_;
QuicPacketNumber largest_packet_peer_knows_is_acked_;
QuicPacketNumber
largest_packets_peer_knows_is_acked_[NUM_PACKET_NUMBER_SPACES];
QuicTime::Delta peer_max_ack_delay_;
QuicTime::Delta peer_min_ack_delay_ = QuicTime::Delta::Infinite();
bool use_smoothed_rtt_in_ack_delay_ = false;
quiche::QuicheCircularDeque<
std::pair<QuicTime::Delta, uint64_t>>
in_use_sent_ack_delays_;
QuicAckFrame last_ack_frame_;
bool rtt_updated_;
PacketNumberQueue::const_reverse_iterator acked_packets_iter_;
size_t consecutive_pto_count_;
bool handshake_mode_disabled_;
bool handshake_packet_acked_;
bool zero_rtt_packet_acked_;
bool one_rtt_packet_acked_;
int num_ptos_for_path_degrading_;
bool ignore_pings_;
bool ignore_ack_delay_;
QuicPacketCount ect0_packets_sent_[NUM_PACKET_NUMBER_SPACES] = {0, 0, 0};
QuicPacketCount ect1_packets_sent_[NUM_PACKET_NUMBER_SPACES] = {0, 0, 0};
QuicEcnCounts peer_ack_ecn_counts_[NUM_PACKET_NUMBER_SPACES];
std::optional<QuicTime::Delta> deferred_send_alarm_delay_;
};
}
#endif
#include "quiche/quic/core/quic_sent_packet_manager.h"
#include <algorithm>
#include <cstddef>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/congestion_control/general_loss_algorithm.h"
#include "quiche/quic/core/congestion_control/pacing_sender.h"
#include "quiche/quic/core/congestion_control/send_algorithm_interface.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/core/quic_transmission_info.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/print_elements.h"
namespace quic {
namespace {
static const int64_t kDefaultRetransmissionTimeMs = 500;
static const int64_t kMinHandshakeTimeoutMs = 10;
static const size_t kDefaultMaxTailLossProbes = 2;
static const float kPtoMultiplierWithoutRttSamples = 3;
inline bool ShouldForceRetransmission(TransmissionType transmission_type) {
return transmission_type == HANDSHAKE_RETRANSMISSION ||
transmission_type == PTO_RETRANSMISSION;
}
static const uint32_t kConservativeUnpacedBurst = 2;
static const uint32_t kNumProbeTimeoutsForPathDegradingDelay = 4;
}
#define ENDPOINT \
(unacked_packets_.perspective() == Perspective::IS_SERVER ? "Server: " \
: "Client: ")
QuicSentPacketManager::QuicSentPacketManager(
Perspective perspective, const QuicClock* clock, QuicRand | #include "quiche/quic/core/quic_sent_packet_manager.h"
#include <algorithm>
#include <memory>
#include <optional>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_sent_packet_manager_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
using testing::_;
using testing::AnyNumber;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::IsEmpty;
using testing::Not;
using testing::Pointwise;
using testing::Return;
using testing::StrictMock;
using testing::WithArgs;
namespace quic {
namespace test {
namespace {
const uint32_t kDefaultLength = 1000;
const QuicStreamId kStreamId = 7;
const std::optional<QuicEcnCounts> kEmptyCounts = std::nullopt;
MATCHER(PacketNumberEq, "") {
return std::get<0>(arg).packet_number == QuicPacketNumber(std::get<1>(arg));
}
class MockDebugDelegate : public QuicSentPacketManager::DebugDelegate {
public:
MOCK_METHOD(void, OnSpuriousPacketRetransmission,
(TransmissionType transmission_type, QuicByteCount byte_size),
(override));
MOCK_METHOD(void, OnPacketLoss,
(QuicPacketNumber lost_packet_number,
EncryptionLevel encryption_level,
TransmissionType transmission_type, QuicTime detection_time),
(override));
};
class QuicSentPacketManagerTest : public QuicTest {
public:
bool RetransmitCryptoPacket(uint64_t packet_number) {
EXPECT_CALL(
*send_algorithm_,
OnPacketSent(_, BytesInFlight(), QuicPacketNumber(packet_number),
kDefaultLength, HAS_RETRANSMITTABLE_DATA));
SerializedPacket packet(CreatePacket(packet_number, false));
packet.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(1, false, 0, absl::string_view())));
packet.has_crypto_handshake = IS_HANDSHAKE;
manager_.OnPacketSent(&packet, clock_.Now(), HANDSHAKE_RETRANSMISSION,
HAS_RETRANSMITTABLE_DATA, true, ECN_NOT_ECT);
return true;
}
bool RetransmitDataPacket(uint64_t packet_number, TransmissionType type,
EncryptionLevel level) {
EXPECT_CALL(
*send_algorithm_,
OnPacketSent(_, BytesInFlight(), QuicPacketNumber(packet_number),
kDefaultLength, HAS_RETRANSMITTABLE_DATA));
SerializedPacket packet(CreatePacket(packet_number, true));
packet.encryption_level = level;
manager_.OnPacketSent(&packet, clock_.Now(), type, HAS_RETRANSMITTABLE_DATA,
true, ECN_NOT_ECT);
return true;
}
bool RetransmitDataPacket(uint64_t packet_number, TransmissionType type) {
return RetransmitDataPacket(packet_number, type, ENCRYPTION_INITIAL);
}
protected:
const CongestionControlType kInitialCongestionControlType = kCubicBytes;
QuicSentPacketManagerTest()
: manager_(Perspective::IS_SERVER, &clock_, QuicRandom::GetInstance(),
&stats_, kInitialCongestionControlType),
send_algorithm_(new StrictMock<MockSendAlgorithm>),
network_change_visitor_(new StrictMock<MockNetworkChangeVisitor>) {
QuicSentPacketManagerPeer::SetSendAlgorithm(&manager_, send_algorithm_);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1000));
manager_.SetNetworkChangeVisitor(network_change_visitor_.get());
manager_.SetSessionNotifier(¬ifier_);
EXPECT_CALL(*send_algorithm_, GetCongestionControlType())
.WillRepeatedly(Return(kInitialCongestionControlType));
EXPECT_CALL(*send_algorithm_, BandwidthEstimate())
.Times(AnyNumber())
.WillRepeatedly(Return(QuicBandwidth::Zero()));
EXPECT_CALL(*send_algorithm_, InSlowStart()).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, InRecovery()).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, OnPacketNeutered(_)).Times(AnyNumber());
EXPECT_CALL(*network_change_visitor_, OnPathMtuIncreased(1000))
.Times(AnyNumber());
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(true));
EXPECT_CALL(notifier_, HasUnackedCryptoData())
.WillRepeatedly(Return(false));
EXPECT_CALL(notifier_, OnStreamFrameRetransmitted(_)).Times(AnyNumber());
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).WillRepeatedly(Return(true));
}
~QuicSentPacketManagerTest() override {}
QuicByteCount BytesInFlight() { return manager_.GetBytesInFlight(); }
void VerifyUnackedPackets(uint64_t* packets, size_t num_packets) {
if (num_packets == 0) {
EXPECT_TRUE(manager_.unacked_packets().empty());
EXPECT_EQ(0u, QuicSentPacketManagerPeer::GetNumRetransmittablePackets(
&manager_));
return;
}
EXPECT_FALSE(manager_.unacked_packets().empty());
EXPECT_EQ(QuicPacketNumber(packets[0]), manager_.GetLeastUnacked());
for (size_t i = 0; i < num_packets; ++i) {
EXPECT_TRUE(
manager_.unacked_packets().IsUnacked(QuicPacketNumber(packets[i])))
<< packets[i];
}
}
void VerifyRetransmittablePackets(uint64_t* packets, size_t num_packets) {
EXPECT_EQ(
num_packets,
QuicSentPacketManagerPeer::GetNumRetransmittablePackets(&manager_));
for (size_t i = 0; i < num_packets; ++i) {
EXPECT_TRUE(QuicSentPacketManagerPeer::HasRetransmittableFrames(
&manager_, packets[i]))
<< " packets[" << i << "]:" << packets[i];
}
}
void ExpectAck(uint64_t largest_observed) {
EXPECT_CALL(
*send_algorithm_,
OnCongestionEvent(true, _, _,
Pointwise(PacketNumberEq(), {largest_observed}),
IsEmpty(), _, _));
EXPECT_CALL(*network_change_visitor_, OnCongestionChange());
}
void ExpectUpdatedRtt(uint64_t ) {
EXPECT_CALL(*send_algorithm_,
OnCongestionEvent(true, _, _, IsEmpty(), IsEmpty(), _, _));
EXPECT_CALL(*network_change_visitor_, OnCongestionChange());
}
void ExpectAckAndLoss(bool rtt_updated, uint64_t largest_observed,
uint64_t lost_packet) {
EXPECT_CALL(
*send_algorithm_,
OnCongestionEvent(rtt_updated, _, _,
Pointwise(PacketNumberEq(), {largest_observed}),
Pointwise(PacketNumberEq(), {lost_packet}), _, _));
EXPECT_CALL(*network_change_visitor_, OnCongestionChange());
}
void ExpectAcksAndLosses(bool rtt_updated, uint64_t* packets_acked,
size_t num_packets_acked, uint64_t* packets_lost,
size_t num_packets_lost) {
std::vector<QuicPacketNumber> ack_vector;
for (size_t i = 0; i < num_packets_acked; ++i) {
ack_vector.push_back(QuicPacketNumber(packets_acked[i]));
}
std::vector<QuicPacketNumber> lost_vector;
for (size_t i = 0; i < num_packets_lost; ++i) {
lost_vector.push_back(QuicPacketNumber(packets_lost[i]));
}
EXPECT_CALL(*send_algorithm_,
OnCongestionEvent(
rtt_updated, _, _, Pointwise(PacketNumberEq(), ack_vector),
Pointwise(PacketNumberEq(), lost_vector), _, _));
EXPECT_CALL(*network_change_visitor_, OnCongestionChange())
.Times(AnyNumber());
}
void RetransmitAndSendPacket(uint64_t old_packet_number,
uint64_t new_packet_number) {
RetransmitAndSendPacket(old_packet_number, new_packet_number,
PTO_RETRANSMISSION);
}
void RetransmitAndSendPacket(uint64_t old_packet_number,
uint64_t new_packet_number,
TransmissionType transmission_type) {
bool is_lost = false;
if (transmission_type == HANDSHAKE_RETRANSMISSION ||
transmission_type == PTO_RETRANSMISSION) {
EXPECT_CALL(notifier_, RetransmitFrames(_, _))
.WillOnce(WithArgs<1>(
Invoke([this, new_packet_number](TransmissionType type) {
return RetransmitDataPacket(new_packet_number, type);
})));
} else {
EXPECT_CALL(notifier_, OnFrameLost(_)).Times(1);
is_lost = true;
}
QuicSentPacketManagerPeer::MarkForRetransmission(
&manager_, old_packet_number, transmission_type);
if (!is_lost) {
return;
}
EXPECT_CALL(
*send_algorithm_,
OnPacketSent(_, BytesInFlight(), QuicPacketNumber(new_packet_number),
kDefaultLength, HAS_RETRANSMITTABLE_DATA));
SerializedPacket packet(CreatePacket(new_packet_number, true));
manager_.OnPacketSent(&packet, clock_.Now(), transmission_type,
HAS_RETRANSMITTABLE_DATA, true, ECN_NOT_ECT);
}
SerializedPacket CreateDataPacket(uint64_t packet_number) {
return CreatePacket(packet_number, true);
}
SerializedPacket CreatePacket(uint64_t packet_number, bool retransmittable) {
SerializedPacket packet(QuicPacketNumber(packet_number),
PACKET_4BYTE_PACKET_NUMBER, nullptr, kDefaultLength,
false, false);
if (retransmittable) {
packet.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(kStreamId, false, 0, absl::string_view())));
}
return packet;
}
SerializedPacket CreatePingPacket(uint64_t packet_number) {
SerializedPacket packet(QuicPacketNumber(packet_number),
PACKET_4BYTE_PACKET_NUMBER, nullptr, kDefaultLength,
false, false);
packet.retransmittable_frames.push_back(QuicFrame(QuicPingFrame()));
return packet;
}
void SendDataPacket(uint64_t packet_number) {
SendDataPacket(packet_number, ENCRYPTION_INITIAL, ECN_NOT_ECT);
}
void SendDataPacket(uint64_t packet_number,
EncryptionLevel encryption_level) {
SendDataPacket(packet_number, encryption_level, ECN_NOT_ECT);
}
void SendDataPacket(uint64_t packet_number, EncryptionLevel encryption_level,
QuicEcnCodepoint ecn_codepoint) {
EXPECT_CALL(*send_algorithm_,
OnPacketSent(_, BytesInFlight(),
QuicPacketNumber(packet_number), _, _));
SerializedPacket packet(CreateDataPacket(packet_number));
packet.encryption_level = encryption_level;
manager_.OnPacketSent(&packet, clock_.Now(), NOT_RETRANSMISSION,
HAS_RETRANSMITTABLE_DATA, true, ecn_codepoint);
}
void SendPingPacket(uint64_t packet_number,
EncryptionLevel encryption_level) {
EXPECT_CALL(*send_algorithm_,
OnPacketSent(_, BytesInFlight(),
QuicPacketNumber(packet_number), _, _));
SerializedPacket packet(CreatePingPacket(packet_number));
packet.encryption_level = encryption_level;
manager_.OnPacketSent(&packet, clock_.Now(), NOT_RETRANSMISSION,
HAS_RETRANSMITTABLE_DATA, true, ECN_NOT_ECT);
}
void SendCryptoPacket(uint64_t packet_number) {
EXPECT_CALL(
*send_algorithm_,
OnPacketSent(_, BytesInFlight(), QuicPacketNumber(packet_number),
kDefaultLength, HAS_RETRANSMITTABLE_DATA));
SerializedPacket packet(CreatePacket(packet_number, false));
packet.retransmittable_frames.push_back(
QuicFrame(QuicStreamFrame(1, false, 0, absl::string_view())));
packet.has_crypto_handshake = IS_HANDSHAKE;
manager_.OnPacketSent(&packet, clock_.Now(), NOT_RETRANSMISSION,
HAS_RETRANSMITTABLE_DATA, true, ECN_NOT_ECT);
EXPECT_CALL(notifier_, HasUnackedCryptoData()).WillRepeatedly(Return(true));
}
void SendAckPacket(uint64_t packet_number, uint64_t largest_acked) {
SendAckPacket(packet_number, largest_acked, ENCRYPTION_INITIAL);
}
void SendAckPacket(uint64_t packet_number, uint64_t largest_acked,
EncryptionLevel level) {
EXPECT_CALL(
*send_algorithm_,
OnPacketSent(_, BytesInFlight(), QuicPacketNumber(packet_number),
kDefaultLength, NO_RETRANSMITTABLE_DATA));
SerializedPacket packet(CreatePacket(packet_number, false));
packet.largest_acked = QuicPacketNumber(largest_acked);
packet.encryption_level = level;
manager_.OnPacketSent(&packet, clock_.Now(), NOT_RETRANSMISSION,
NO_RETRANSMITTABLE_DATA, true, ECN_NOT_ECT);
}
quiche::SimpleBufferAllocator allocator_;
QuicSentPacketManager manager_;
MockClock clock_;
QuicConnectionStats stats_;
MockSendAlgorithm* send_algorithm_;
std::unique_ptr<MockNetworkChangeVisitor> network_change_visitor_;
StrictMock<MockSessionNotifier> notifier_;
};
TEST_F(QuicSentPacketManagerTest, IsUnacked) {
VerifyUnackedPackets(nullptr, 0);
SendDataPacket(1);
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
uint64_t retransmittable[] = {1};
VerifyRetransmittablePackets(retransmittable,
ABSL_ARRAYSIZE(retransmittable));
}
TEST_F(QuicSentPacketManagerTest, IsUnAckedRetransmit) {
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
EXPECT_TRUE(QuicSentPacketManagerPeer::IsRetransmission(&manager_, 2));
uint64_t unacked[] = {1, 2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
std::vector<uint64_t> retransmittable = {1, 2};
VerifyRetransmittablePackets(&retransmittable[0], retransmittable.size());
}
TEST_F(QuicSentPacketManagerTest, RetransmitThenAck) {
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
ExpectAck(2);
manager_.OnAckFrameStart(QuicPacketNumber(2), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(2), QuicPacketNumber(3));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
EXPECT_TRUE(manager_.HasInFlightPackets());
VerifyRetransmittablePackets(nullptr, 0);
}
TEST_F(QuicSentPacketManagerTest, RetransmitThenAckBeforeSend) {
SendDataPacket(1);
EXPECT_CALL(notifier_, RetransmitFrames(_, _))
.WillOnce(WithArgs<1>(Invoke([this](TransmissionType type) {
return RetransmitDataPacket(2, type);
})));
QuicSentPacketManagerPeer::MarkForRetransmission(&manager_, 1,
PTO_RETRANSMISSION);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
uint64_t unacked[] = {2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
EXPECT_EQ(0u, stats_.packets_spuriously_retransmitted);
}
TEST_F(QuicSentPacketManagerTest, RetransmitThenStopRetransmittingBeforeSend) {
SendDataPacket(1);
EXPECT_CALL(notifier_, RetransmitFrames(_, _)).WillRepeatedly(Return(true));
QuicSentPacketManagerPeer::MarkForRetransmission(&manager_, 1,
PTO_RETRANSMISSION);
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
uint64_t unacked[] = {1};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
VerifyRetransmittablePackets(nullptr, 0);
EXPECT_EQ(0u, stats_.packets_spuriously_retransmitted);
}
TEST_F(QuicSentPacketManagerTest, RetransmitThenAckPrevious) {
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
QuicTime::Delta rtt = QuicTime::Delta::FromMilliseconds(15);
clock_.AdvanceTime(rtt);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
uint64_t unacked[] = {2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
EXPECT_TRUE(manager_.HasInFlightPackets());
VerifyRetransmittablePackets(nullptr, 0);
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).WillOnce(Return(false));
ExpectAck(2);
manager_.OnAckFrameStart(QuicPacketNumber(2), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(3));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(2),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(1u, stats_.packets_spuriously_retransmitted);
}
TEST_F(QuicSentPacketManagerTest, RetransmitThenAckPreviousThenNackRetransmit) {
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
QuicTime::Delta rtt = QuicTime::Delta::FromMilliseconds(15);
clock_.AdvanceTime(rtt);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
SendDataPacket(3);
SendDataPacket(4);
SendDataPacket(5);
clock_.AdvanceTime(rtt);
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
EXPECT_CALL(notifier_, OnFrameLost(_)).Times(1);
ExpectAckAndLoss(true, 3, 2);
manager_.OnAckFrameStart(QuicPacketNumber(3), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(4));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(2),
ENCRYPTION_INITIAL, kEmptyCounts));
ExpectAck(4);
manager_.OnAckFrameStart(QuicPacketNumber(4), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(5));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(3),
ENCRYPTION_INITIAL, kEmptyCounts));
ExpectAck(5);
manager_.OnAckFrameStart(QuicPacketNumber(5), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(6));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(4),
ENCRYPTION_INITIAL, kEmptyCounts));
uint64_t unacked[] = {2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
EXPECT_FALSE(manager_.HasInFlightPackets());
VerifyRetransmittablePackets(nullptr, 0);
EXPECT_EQ(QuicTime::Zero(), manager_.GetRetransmissionTime());
}
TEST_F(QuicSentPacketManagerTest,
DISABLED_RetransmitTwiceThenAckPreviousBeforeSend) {
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
EXPECT_CALL(*send_algorithm_, OnRetransmissionTimeout(true));
EXPECT_CALL(*network_change_visitor_, OnCongestionChange());
manager_.OnRetransmissionTimeout();
ExpectUpdatedRtt(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
uint64_t unacked[] = {2};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
EXPECT_FALSE(manager_.HasInFlightPackets());
VerifyRetransmittablePackets(nullptr, 0);
EXPECT_EQ(QuicTime::Zero(), manager_.GetRetransmissionTime());
}
TEST_F(QuicSentPacketManagerTest, RetransmitTwiceThenAckFirst) {
StrictMock<MockDebugDelegate> debug_delegate;
EXPECT_CALL(debug_delegate, OnSpuriousPacketRetransmission(PTO_RETRANSMISSION,
kDefaultLength))
.Times(1);
manager_.SetDebugDelegate(&debug_delegate);
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
RetransmitAndSendPacket(2, 3);
QuicTime::Delta rtt = QuicTime::Delta::FromMilliseconds(15);
clock_.AdvanceTime(rtt);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_CALL(notifier_, IsFrameOutstanding(_))
.Times(2)
.WillRepeatedly(Return(false));
uint64_t unacked[] = {2, 3};
VerifyUnackedPackets(unacked, ABSL_ARRAYSIZE(unacked));
EXPECT_TRUE(manager_.HasInFlightPackets());
VerifyRetransmittablePackets(nullptr, 0);
SendDataPacket(4);
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _))
.WillOnce(Return(false))
.WillRepeatedly(Return(true));
uint64_t acked[] = {3, 4};
ExpectAcksAndLosses(true, acked, ABSL_ARRAYSIZE(acked), nullptr, 0);
manager_.OnAckFrameStart(QuicPacketNumber(4), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(5));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(2),
ENCRYPTION_INITIAL, kEmptyCounts));
uint64_t unacked2[] = {2};
VerifyUnackedPackets(unacked2, ABSL_ARRAYSIZE(unacked2));
EXPECT_TRUE(manager_.HasInFlightPackets());
SendDataPacket(5);
ExpectAckAndLoss(true, 5, 2);
EXPECT_CALL(debug_delegate,
OnPacketLoss(QuicPacketNumber(2), _, LOSS_RETRANSMISSION, _));
EXPECT_CALL(notifier_, IsFrameOutstanding(_)).WillRepeatedly(Return(false));
EXPECT_CALL(notifier_, OnFrameLost(_)).Times(1);
manager_.OnAckFrameStart(QuicPacketNumber(5), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(6));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(3),
ENCRYPTION_INITIAL, kEmptyCounts));
uint64_t unacked3[] = {2};
VerifyUnackedPackets(unacked3, ABSL_ARRAYSIZE(unacked3));
EXPECT_FALSE(manager_.HasInFlightPackets());
EXPECT_EQ(1u, stats_.packets_spuriously_retransmitted);
EXPECT_EQ(1u, stats_.packets_lost);
EXPECT_LT(0.0, stats_.total_loss_detection_response_time);
EXPECT_LE(1u, stats_.sent_packets_max_sequence_reordering);
}
TEST_F(QuicSentPacketManagerTest, AckOriginalTransmission) {
auto loss_algorithm = std::make_unique<MockLossAlgorithm>();
QuicSentPacketManagerPeer::SetLossAlgorithm(&manager_, loss_algorithm.get());
SendDataPacket(1);
RetransmitAndSendPacket(1, 2);
{
ExpectAck(1);
EXPECT_CALL(*loss_algorithm, DetectLosses(_, _, _, _, _, _));
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
}
SendDataPacket(3);
SendDataPacket(4);
{
ExpectAck(4);
EXPECT_CALL(*loss_algorithm, DetectLosses(_, _, _, _, _, _));
manager_.OnAckFrameStart(QuicPacketNumber(4), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(4), QuicPacketNumber(5));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(2),
ENCRYPTION_INITIAL, kEmptyCounts));
RetransmitAndSendPacket(3, 5, LOSS_RETRANSMISSION);
}
{
uint64_t acked[] = {3};
ExpectAcksAndLosses(false, acked, ABSL_ARRAYSIZE(acked), nullptr, 0);
EXPECT_CALL(*loss_algorithm, DetectLosses(_, _, _, _, _, _));
EXPECT_CALL(*loss_algorithm,
SpuriousLossDetected(_, _, _, QuicPacketNumber(3),
QuicPacketNumber(4)));
manager_.OnAckFrameStart(QuicPacketNumber(4), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(5));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(0u, stats_.packet_spuriously_detected_lost);
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(3),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(1u, stats_.packet_spuriously_detected_lost);
ExpectAck(5);
EXPECT_CALL(*loss_algorithm, DetectLosses(_, _, _, _, _, _));
EXPECT_CALL(notifier_, OnFrameAcked(_, _, _)).WillOnce(Return(false));
manager_.OnAckFrameStart(QuicPacketNumber(5), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(3), QuicPacketNumber(6));
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(4),
ENCRYPTION_INITIAL, kEmptyCounts));
}
}
TEST_F(QuicSentPacketManagerTest, GetLeastUnacked) {
EXPECT_EQ(QuicPacketNumber(1u), manager_.GetLeastUnacked());
}
TEST_F(QuicSentPacketManagerTest, GetLeastUnackedUnacked) {
SendDataPacket(1);
EXPECT_EQ(QuicPacketNumber(1u), manager_.GetLeastUnacked());
}
TEST_F(QuicSentPacketManagerTest, AckAckAndUpdateRtt) {
EXPECT_FALSE(manager_.largest_packet_peer_knows_is_acked().IsInitialized());
SendDataPacket(1);
SendAckPacket(2, 1);
uint64_t acked[] = {1, 2};
ExpectAcksAndLosses(true, acked, ABSL_ARRAYSIZE(acked), nullptr, 0);
manager_.OnAckFrameStart(QuicPacketNumber(2),
QuicTime::Delta::FromMilliseconds(5), clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(3));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(QuicPacketNumber(1), manager_.largest_packet_peer_knows_is_acked());
SendAckPacket(3, 3);
uint64_t acked2[] = {3};
ExpectAcksAndLosses(true, acked2, ABSL_ARRAYSIZE(acked2), nullptr, 0);
manager_.OnAckFrameStart(QuicPacketNumber(3), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(4));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(2),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(QuicPacketNumber(3u),
manager_.largest_packet_peer_knows_is_acked());
}
TEST_F(QuicSentPacketManagerTest, Rtt) {
QuicTime::Delta expected_rtt = QuicTime::Delta::FromMilliseconds(20);
SendDataPacket(1);
clock_.AdvanceTime(expected_rtt);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1), QuicTime::Delta::Infinite(),
clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(expected_rtt, manager_.GetRttStats()->latest_rtt());
}
TEST_F(QuicSentPacketManagerTest, RttWithInvalidDelta) {
QuicTime::Delta expected_rtt = QuicTime::Delta::FromMilliseconds(10);
SendDataPacket(1);
clock_.AdvanceTime(expected_rtt);
ExpectAck(1);
manager_.OnAckFrameStart(QuicPacketNumber(1),
QuicTime::Delta::FromMilliseconds(11), clock_.Now());
manager_.OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2));
EXPECT_EQ(PACKETS_NEWLY_ACKED,
manager_.OnAckFrameEnd(clock_.Now(), QuicPacketNumber(1),
ENCRYPTION_INITIAL, kEmptyCounts));
EXPECT_EQ(expected_rtt, manager_.GetRttStats()->latest_rtt());
}
TEST_F(QuicSentPacketManagerTest, RttWithInfiniteDelta) {
QuicTime::Delta expected_rtt = QuicTime::Delta::FromMilliseconds(10);
SendDataPacket(1);
clock_.AdvanceTime(expected_rtt);
ExpectAck(1);
manager_. |
271 | cpp | google/quiche | quic_time | quiche/quic/core/quic_time.cc | quiche/quic/core/quic_time_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_TIME_H_
#define QUICHE_QUIC_CORE_QUIC_TIME_H_
#include <cmath>
#include <cstdint>
#include <limits>
#include <ostream>
#include <string>
#include "absl/time/time.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QuicClock;
class QuicTime;
class QUICHE_EXPORT QuicTimeDelta {
public:
explicit QuicTimeDelta(absl::Duration duration)
: time_offset_((duration == absl::InfiniteDuration())
? kInfiniteTimeUs
: absl::ToInt64Microseconds(duration)) {}
static constexpr QuicTimeDelta Zero() { return QuicTimeDelta(0); }
static constexpr QuicTimeDelta Infinite() {
return QuicTimeDelta(kInfiniteTimeUs);
}
static constexpr QuicTimeDelta FromSeconds(int64_t secs) {
return QuicTimeDelta(secs * 1000 * 1000);
}
static constexpr QuicTimeDelta FromMilliseconds(int64_t ms) {
return QuicTimeDelta(ms * 1000);
}
static constexpr QuicTimeDelta FromMicroseconds(int64_t us) {
return QuicTimeDelta(us);
}
constexpr int64_t ToSeconds() const { return time_offset_ / 1000 / 1000; }
constexpr int64_t ToMilliseconds() const { return time_offset_ / 1000; }
constexpr int64_t ToMicroseconds() const { return time_offset_; }
constexpr absl::Duration ToAbsl() {
if (ABSL_PREDICT_FALSE(IsInfinite())) {
return absl::InfiniteDuration();
}
return absl::Microseconds(time_offset_);
}
constexpr bool IsZero() const { return time_offset_ == 0; }
constexpr bool IsInfinite() const { return time_offset_ == kInfiniteTimeUs; }
std::string ToDebuggingValue() const;
private:
friend inline bool operator==(QuicTimeDelta lhs, QuicTimeDelta rhs);
friend inline bool operator<(QuicTimeDelta lhs, QuicTimeDelta rhs);
friend inline QuicTimeDelta operator<<(QuicTimeDelta lhs, size_t rhs);
friend inline QuicTimeDelta operator>>(QuicTimeDelta lhs, size_t rhs);
friend inline constexpr QuicTimeDelta operator+(QuicTimeDelta lhs,
QuicTimeDelta rhs);
friend inline constexpr QuicTimeDelta operator-(QuicTimeDelta lhs,
QuicTimeDelta rhs);
friend inline constexpr QuicTimeDelta operator*(QuicTimeDelta lhs, int rhs);
friend inline QuicTimeDelta operator*(QuicTimeDelta lhs, double rhs);
friend inline QuicTime operator+(QuicTime lhs, QuicTimeDelta rhs);
friend inline QuicTime operator-(QuicTime lhs, QuicTimeDelta rhs);
friend inline QuicTimeDelta operator-(QuicTime lhs, QuicTime rhs);
static constexpr int64_t kInfiniteTimeUs =
std::numeric_limits<int64_t>::max();
explicit constexpr QuicTimeDelta(int64_t time_offset)
: time_offset_(time_offset) {}
int64_t time_offset_;
friend class QuicTime;
};
class QUICHE_EXPORT QuicTime {
public:
using Delta = QuicTimeDelta;
static constexpr QuicTime Zero() { return QuicTime(0); }
static constexpr QuicTime Infinite() {
return QuicTime(Delta::kInfiniteTimeUs);
}
QuicTime(const QuicTime& other) = default;
QuicTime& operator=(const QuicTime& other) {
time_ = other.time_;
return *this;
}
int64_t ToDebuggingValue() const { return time_; }
bool IsInitialized() const { return 0 != time_; }
private:
friend class QuicClock;
friend inline bool operator==(QuicTime lhs, QuicTime rhs);
friend inline bool operator<(QuicTime lhs, QuicTime rhs);
friend inline QuicTime operator+(QuicTime lhs, QuicTimeDelta rhs);
friend inline QuicTime operator-(QuicTime lhs, QuicTimeDelta rhs);
friend inline QuicTimeDelta operator-(QuicTime lhs, QuicTime rhs);
explicit constexpr QuicTime(int64_t time) : time_(time) {}
int64_t time_;
};
class QUICHE_EXPORT QuicWallTime {
public:
static constexpr QuicWallTime FromUNIXSeconds(uint64_t seconds) {
return QuicWallTime(seconds * 1000000);
}
static constexpr QuicWallTime FromUNIXMicroseconds(uint64_t microseconds) {
return QuicWallTime(microseconds);
}
static constexpr QuicWallTime Zero() { return QuicWallTime(0); }
uint64_t ToUNIXSeconds() const;
uint64_t ToUNIXMicroseconds() const;
bool IsAfter(QuicWallTime other) const;
bool IsBefore(QuicWallTime other) const;
bool IsZero() const;
QuicTimeDelta AbsoluteDifference(QuicWallTime other) const;
[[nodiscard]] QuicWallTime Add(QuicTimeDelta delta) const;
[[nodiscard]] QuicWallTime Subtract(QuicTimeDelta delta) const;
bool operator==(const QuicWallTime& other) const {
return microseconds_ == other.microseconds_;
}
QuicTimeDelta operator-(const QuicWallTime& rhs) const {
return QuicTimeDelta::FromMicroseconds(microseconds_ - rhs.microseconds_);
}
private:
explicit constexpr QuicWallTime(uint64_t microseconds)
: microseconds_(microseconds) {}
uint64_t microseconds_;
};
inline bool operator==(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return lhs.time_offset_ == rhs.time_offset_;
}
inline bool operator!=(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return !(lhs == rhs);
}
inline bool operator<(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return lhs.time_offset_ < rhs.time_offset_;
}
inline bool operator>(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return rhs < lhs;
}
inline bool operator<=(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return !(rhs < lhs);
}
inline bool operator>=(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return !(lhs < rhs);
}
inline QuicTimeDelta operator<<(QuicTimeDelta lhs, size_t rhs) {
return QuicTimeDelta(lhs.time_offset_ << rhs);
}
inline QuicTimeDelta operator>>(QuicTimeDelta lhs, size_t rhs) {
return QuicTimeDelta(lhs.time_offset_ >> rhs);
}
inline bool operator==(QuicTime lhs, QuicTime rhs) {
return lhs.time_ == rhs.time_;
}
inline bool operator!=(QuicTime lhs, QuicTime rhs) { return !(lhs == rhs); }
inline bool operator<(QuicTime lhs, QuicTime rhs) {
return lhs.time_ < rhs.time_;
}
inline bool operator>(QuicTime lhs, QuicTime rhs) { return rhs < lhs; }
inline bool operator<=(QuicTime lhs, QuicTime rhs) { return !(rhs < lhs); }
inline bool operator>=(QuicTime lhs, QuicTime rhs) { return !(lhs < rhs); }
inline std::ostream& operator<<(std::ostream& output, const QuicTime t) {
output << t.ToDebuggingValue();
return output;
}
inline constexpr QuicTimeDelta operator+(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return QuicTimeDelta(lhs.time_offset_ + rhs.time_offset_);
}
inline constexpr QuicTimeDelta operator-(QuicTimeDelta lhs, QuicTimeDelta rhs) {
return QuicTimeDelta(lhs.time_offset_ - rhs.time_offset_);
}
inline constexpr QuicTimeDelta operator*(QuicTimeDelta lhs, int rhs) {
return QuicTimeDelta(lhs.time_offset_ * rhs);
}
inline QuicTimeDelta operator*(QuicTimeDelta lhs, double rhs) {
return QuicTimeDelta(static_cast<int64_t>(
std::llround(static_cast<double>(lhs.time_offset_) * rhs)));
}
inline QuicTimeDelta operator*(int lhs, QuicTimeDelta rhs) { return rhs * lhs; }
inline QuicTimeDelta operator*(double lhs, QuicTimeDelta rhs) {
return rhs * lhs;
}
inline QuicTime operator+(QuicTime lhs, QuicTimeDelta rhs) {
return QuicTime(lhs.time_ + rhs.time_offset_);
}
inline QuicTime operator-(QuicTime lhs, QuicTimeDelta rhs) {
return QuicTime(lhs.time_ - rhs.time_offset_);
}
inline QuicTimeDelta operator-(QuicTime lhs, QuicTime rhs) {
return QuicTimeDelta(lhs.time_ - rhs.time_);
}
inline std::ostream& operator<<(std::ostream& output,
const QuicTimeDelta delta) {
output << delta.ToDebuggingValue();
return output;
}
}
#endif
#include "quiche/quic/core/quic_time.h"
#include <cinttypes>
#include <cstdlib>
#include <limits>
#include <string>
#include "absl/strings/str_cat.h"
namespace quic {
std::string QuicTime::Delta::ToDebuggingValue() const {
constexpr int64_t kMillisecondInMicroseconds = 1000;
constexpr int64_t kSecondInMicroseconds = 1000 * kMillisecondInMicroseconds;
int64_t absolute_value = std::abs(time_offset_);
if (absolute_value >= kSecondInMicroseconds &&
absolute_value % kSecondInMicroseconds == 0) {
return absl::StrCat(time_offset_ / kSecondInMicroseconds, "s");
}
if (absolute_value >= kMillisecondInMicroseconds &&
absolute_value % kMillisecondInMicroseconds == 0) {
return absl::StrCat(time_offset_ / kMillisecondInMicroseconds, "ms");
}
return absl::StrCat(time_offset_, "us");
}
uint64_t QuicWallTime::ToUNIXSeconds() const { return microseconds_ / 1000000; }
uint64_t QuicWallTime::ToUNIXMicroseconds() const { return microseconds_; }
bool QuicWallTime::IsAfter(QuicWallTime other) const {
return microseconds_ > other.microseconds_;
}
bool QuicWallTime::IsBefore(QuicWallTime other) const {
return microseconds_ < other.microseconds_;
}
bool QuicWallTime::IsZero() const { return microseconds_ == 0; }
QuicTime::Delta QuicWallTime::AbsoluteDifference(QuicWallTime other) const {
uint64_t d;
if (microseconds_ > other.microseconds_) {
d = microseconds_ - other.microseconds_;
} else {
d = other.microseconds_ - microseconds_;
}
if (d > static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) {
d = std::numeric_limits<int64_t>::max();
}
return QuicTime::Delta::FromMicroseconds(d);
}
QuicWallTime QuicWallTime::Add(QuicTime::Delta delta) const {
uint64_t microseconds = microseconds_ + delta.ToMicroseconds();
if (microseconds < microseconds_) {
microseconds = std::numeric_limits<uint64_t>::max();
}
return QuicWallTime(microseconds);
}
QuicWallTime QuicWallTime::Subtract(QuicTime::Delta delta) const {
uint64_t microseconds = microseconds_ - delta.ToMicroseconds();
if (microseconds > microseconds_) {
microseconds = 0;
}
return QuicWallTime(microseconds);
}
} | #include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
namespace quic {
namespace test {
class QuicTimeDeltaTest : public QuicTest {};
TEST_F(QuicTimeDeltaTest, Zero) {
EXPECT_TRUE(QuicTime::Delta::Zero().IsZero());
EXPECT_FALSE(QuicTime::Delta::Zero().IsInfinite());
EXPECT_FALSE(QuicTime::Delta::FromMilliseconds(1).IsZero());
}
TEST_F(QuicTimeDeltaTest, Infinite) {
EXPECT_TRUE(QuicTime::Delta::Infinite().IsInfinite());
EXPECT_FALSE(QuicTime::Delta::Zero().IsInfinite());
EXPECT_FALSE(QuicTime::Delta::FromMilliseconds(1).IsInfinite());
}
TEST_F(QuicTimeDeltaTest, FromTo) {
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(1),
QuicTime::Delta::FromMicroseconds(1000));
EXPECT_EQ(QuicTime::Delta::FromSeconds(1),
QuicTime::Delta::FromMilliseconds(1000));
EXPECT_EQ(QuicTime::Delta::FromSeconds(1),
QuicTime::Delta::FromMicroseconds(1000000));
EXPECT_EQ(1, QuicTime::Delta::FromMicroseconds(1000).ToMilliseconds());
EXPECT_EQ(2, QuicTime::Delta::FromMilliseconds(2000).ToSeconds());
EXPECT_EQ(1000, QuicTime::Delta::FromMilliseconds(1).ToMicroseconds());
EXPECT_EQ(1, QuicTime::Delta::FromMicroseconds(1000).ToMilliseconds());
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(2000).ToMicroseconds(),
QuicTime::Delta::FromSeconds(2).ToMicroseconds());
}
TEST_F(QuicTimeDeltaTest, Add) {
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(2000),
QuicTime::Delta::Zero() + QuicTime::Delta::FromMilliseconds(2));
}
TEST_F(QuicTimeDeltaTest, Subtract) {
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(1000),
QuicTime::Delta::FromMilliseconds(2) -
QuicTime::Delta::FromMilliseconds(1));
}
TEST_F(QuicTimeDeltaTest, Multiply) {
int i = 2;
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(4000),
QuicTime::Delta::FromMilliseconds(2) * i);
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(4000),
i * QuicTime::Delta::FromMilliseconds(2));
double d = 2;
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(4000),
QuicTime::Delta::FromMilliseconds(2) * d);
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(4000),
d * QuicTime::Delta::FromMilliseconds(2));
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(5),
QuicTime::Delta::FromMicroseconds(9) * 0.5);
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(2),
QuicTime::Delta::FromMicroseconds(12) * 0.2);
}
TEST_F(QuicTimeDeltaTest, Max) {
EXPECT_EQ(QuicTime::Delta::FromMicroseconds(2000),
std::max(QuicTime::Delta::FromMicroseconds(1000),
QuicTime::Delta::FromMicroseconds(2000)));
}
TEST_F(QuicTimeDeltaTest, NotEqual) {
EXPECT_TRUE(QuicTime::Delta::FromSeconds(0) !=
QuicTime::Delta::FromSeconds(1));
EXPECT_FALSE(QuicTime::Delta::FromSeconds(0) !=
QuicTime::Delta::FromSeconds(0));
}
TEST_F(QuicTimeDeltaTest, DebuggingValue) {
const QuicTime::Delta one_us = QuicTime::Delta::FromMicroseconds(1);
const QuicTime::Delta one_ms = QuicTime::Delta::FromMilliseconds(1);
const QuicTime::Delta one_s = QuicTime::Delta::FromSeconds(1);
EXPECT_EQ("1s", one_s.ToDebuggingValue());
EXPECT_EQ("3s", (3 * one_s).ToDebuggingValue());
EXPECT_EQ("1ms", one_ms.ToDebuggingValue());
EXPECT_EQ("3ms", (3 * one_ms).ToDebuggingValue());
EXPECT_EQ("1us", one_us.ToDebuggingValue());
EXPECT_EQ("3us", (3 * one_us).ToDebuggingValue());
EXPECT_EQ("3001us", (3 * one_ms + one_us).ToDebuggingValue());
EXPECT_EQ("3001ms", (3 * one_s + one_ms).ToDebuggingValue());
EXPECT_EQ("3000001us", (3 * one_s + one_us).ToDebuggingValue());
}
class QuicTimeTest : public QuicTest {
protected:
MockClock clock_;
};
TEST_F(QuicTimeTest, Initialized) {
EXPECT_FALSE(QuicTime::Zero().IsInitialized());
EXPECT_TRUE((QuicTime::Zero() + QuicTime::Delta::FromMicroseconds(1))
.IsInitialized());
}
TEST_F(QuicTimeTest, CopyConstruct) {
QuicTime time_1 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1234);
EXPECT_NE(time_1, QuicTime(QuicTime::Zero()));
EXPECT_EQ(time_1, QuicTime(time_1));
}
TEST_F(QuicTimeTest, CopyAssignment) {
QuicTime time_1 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1234);
QuicTime time_2 = QuicTime::Zero();
EXPECT_NE(time_1, time_2);
time_2 = time_1;
EXPECT_EQ(time_1, time_2);
}
TEST_F(QuicTimeTest, Add) {
QuicTime time_1 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1);
QuicTime time_2 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
QuicTime::Delta diff = time_2 - time_1;
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(1), diff);
EXPECT_EQ(1000, diff.ToMicroseconds());
EXPECT_EQ(1, diff.ToMilliseconds());
}
TEST_F(QuicTimeTest, Subtract) {
QuicTime time_1 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1);
QuicTime time_2 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(1), time_2 - time_1);
}
TEST_F(QuicTimeTest, SubtractDelta) {
QuicTime time = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
EXPECT_EQ(QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1),
time - QuicTime::Delta::FromMilliseconds(1));
}
TEST_F(QuicTimeTest, Max) {
QuicTime time_1 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(1);
QuicTime time_2 = QuicTime::Zero() + QuicTime::Delta::FromMilliseconds(2);
EXPECT_EQ(time_2, std::max(time_1, time_2));
}
TEST_F(QuicTimeTest, MockClock) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
QuicTime now = clock_.ApproximateNow();
QuicTime time = QuicTime::Zero() + QuicTime::Delta::FromMicroseconds(1000);
EXPECT_EQ(now, time);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(1));
now = clock_.ApproximateNow();
EXPECT_NE(now, time);
time = time + QuicTime::Delta::FromMilliseconds(1);
EXPECT_EQ(now, time);
}
TEST_F(QuicTimeTest, LE) {
const QuicTime zero = QuicTime::Zero();
const QuicTime one = zero + QuicTime::Delta::FromSeconds(1);
EXPECT_TRUE(zero <= zero);
EXPECT_TRUE(zero <= one);
EXPECT_TRUE(one <= one);
EXPECT_FALSE(one <= zero);
}
}
} |
272 | cpp | google/quiche | quic_stream_priority | quiche/quic/core/quic_stream_priority.cc | quiche/quic/core/quic_stream_priority_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_PRIORITY_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_PRIORITY_H_
#include <cstdint>
#include <optional>
#include <string>
#include <tuple>
#include "absl/strings/string_view.h"
#include "absl/types/variant.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/platform/api/quiche_bug_tracker.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/web_transport/web_transport.h"
namespace quic {
struct QUICHE_EXPORT HttpStreamPriority {
static constexpr int kMinimumUrgency = 0;
static constexpr int kMaximumUrgency = 7;
static constexpr int kDefaultUrgency = 3;
static constexpr bool kDefaultIncremental = false;
static constexpr absl::string_view kUrgencyKey = "u";
static constexpr absl::string_view kIncrementalKey = "i";
int urgency = kDefaultUrgency;
bool incremental = kDefaultIncremental;
bool operator==(const HttpStreamPriority& other) const {
return std::tie(urgency, incremental) ==
std::tie(other.urgency, other.incremental);
}
bool operator!=(const HttpStreamPriority& other) const {
return !(*this == other);
}
};
struct QUICHE_EXPORT WebTransportStreamPriority {
QuicStreamId session_id = 0;
uint64_t send_group_number = 0;
webtransport::SendOrder send_order = 0;
bool operator==(const WebTransportStreamPriority& other) const {
return session_id == other.session_id &&
send_group_number == other.send_group_number &&
send_order == other.send_order;
}
bool operator!=(const WebTransportStreamPriority& other) const {
return !(*this == other);
}
};
class QUICHE_EXPORT QuicStreamPriority {
public:
QuicStreamPriority() : value_(HttpStreamPriority()) {}
explicit QuicStreamPriority(HttpStreamPriority priority) : value_(priority) {}
explicit QuicStreamPriority(WebTransportStreamPriority priority)
: value_(priority) {}
QuicPriorityType type() const { return absl::visit(TypeExtractor(), value_); }
HttpStreamPriority http() const {
if (absl::holds_alternative<HttpStreamPriority>(value_)) {
return absl::get<HttpStreamPriority>(value_);
}
QUICHE_BUG(invalid_priority_type_http)
<< "Tried to access HTTP priority for a priority type" << type();
return HttpStreamPriority();
}
WebTransportStreamPriority web_transport() const {
if (absl::holds_alternative<WebTransportStreamPriority>(value_)) {
return absl::get<WebTransportStreamPriority>(value_);
}
QUICHE_BUG(invalid_priority_type_wt)
<< "Tried to access WebTransport priority for a priority type"
<< type();
return WebTransportStreamPriority();
}
bool operator==(const QuicStreamPriority& other) const {
return value_ == other.value_;
}
private:
struct TypeExtractor {
QuicPriorityType operator()(const HttpStreamPriority&) {
return QuicPriorityType::kHttp;
}
QuicPriorityType operator()(const WebTransportStreamPriority&) {
return QuicPriorityType::kWebTransport;
}
};
absl::variant<HttpStreamPriority, WebTransportStreamPriority> value_;
};
QUICHE_EXPORT std::string SerializePriorityFieldValue(
HttpStreamPriority priority);
QUICHE_EXPORT std::optional<HttpStreamPriority> ParsePriorityFieldValue(
absl::string_view priority_field_value);
}
#endif
#include "quiche/quic/core/quic_stream_priority.h"
#include <optional>
#include <string>
#include <vector>
#include "quiche/common/platform/api/quiche_bug_tracker.h"
#include "quiche/common/structured_headers.h"
namespace quic {
std::string SerializePriorityFieldValue(HttpStreamPriority priority) {
quiche::structured_headers::Dictionary dictionary;
if (priority.urgency != HttpStreamPriority::kDefaultUrgency &&
priority.urgency >= HttpStreamPriority::kMinimumUrgency &&
priority.urgency <= HttpStreamPriority::kMaximumUrgency) {
dictionary[HttpStreamPriority::kUrgencyKey] =
quiche::structured_headers::ParameterizedMember(
quiche::structured_headers::Item(
static_cast<int64_t>(priority.urgency)),
{});
}
if (priority.incremental != HttpStreamPriority::kDefaultIncremental) {
dictionary[HttpStreamPriority::kIncrementalKey] =
quiche::structured_headers::ParameterizedMember(
quiche::structured_headers::Item(priority.incremental), {});
}
std::optional<std::string> priority_field_value =
quiche::structured_headers::SerializeDictionary(dictionary);
if (!priority_field_value.has_value()) {
QUICHE_BUG(priority_field_value_serialization_failed);
return "";
}
return *priority_field_value;
}
std::optional<HttpStreamPriority> ParsePriorityFieldValue(
absl::string_view priority_field_value) {
std::optional<quiche::structured_headers::Dictionary> parsed_dictionary =
quiche::structured_headers::ParseDictionary(priority_field_value);
if (!parsed_dictionary.has_value()) {
return std::nullopt;
}
uint8_t urgency = HttpStreamPriority::kDefaultUrgency;
bool incremental = HttpStreamPriority::kDefaultIncremental;
for (const auto& [name, value] : *parsed_dictionary) {
if (value.member_is_inner_list) {
continue;
}
const std::vector<quiche::structured_headers::ParameterizedItem>& member =
value.member;
if (member.size() != 1) {
QUICHE_BUG(priority_field_value_parsing_internal_error);
continue;
}
const quiche::structured_headers::Item item = member[0].item;
if (name == HttpStreamPriority::kUrgencyKey && item.is_integer()) {
int parsed_urgency = item.GetInteger();
if (parsed_urgency >= HttpStreamPriority::kMinimumUrgency &&
parsed_urgency <= HttpStreamPriority::kMaximumUrgency) {
urgency = parsed_urgency;
}
} else if (name == HttpStreamPriority::kIncrementalKey &&
item.is_boolean()) {
incremental = item.GetBoolean();
}
}
return HttpStreamPriority{urgency, incremental};
}
} | #include "quiche/quic/core/quic_stream_priority.h"
#include <optional>
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/platform/api/quiche_test.h"
namespace quic::test {
TEST(HttpStreamPriority, DefaultConstructed) {
HttpStreamPriority priority;
EXPECT_EQ(HttpStreamPriority::kDefaultUrgency, priority.urgency);
EXPECT_EQ(HttpStreamPriority::kDefaultIncremental, priority.incremental);
}
TEST(HttpStreamPriority, Equals) {
EXPECT_EQ((HttpStreamPriority()),
(HttpStreamPriority{HttpStreamPriority::kDefaultUrgency,
HttpStreamPriority::kDefaultIncremental}));
EXPECT_EQ((HttpStreamPriority{5, true}), (HttpStreamPriority{5, true}));
EXPECT_EQ((HttpStreamPriority{2, false}), (HttpStreamPriority{2, false}));
EXPECT_EQ((HttpStreamPriority{11, true}), (HttpStreamPriority{11, true}));
EXPECT_NE((HttpStreamPriority{1, true}), (HttpStreamPriority{3, true}));
EXPECT_NE((HttpStreamPriority{4, false}), (HttpStreamPriority{4, true}));
EXPECT_NE((HttpStreamPriority{6, true}), (HttpStreamPriority{2, false}));
EXPECT_NE((HttpStreamPriority{12, true}), (HttpStreamPriority{9, true}));
EXPECT_NE((HttpStreamPriority{2, false}), (HttpStreamPriority{8, false}));
}
TEST(WebTransportStreamPriority, DefaultConstructed) {
WebTransportStreamPriority priority;
EXPECT_EQ(priority.session_id, 0);
EXPECT_EQ(priority.send_group_number, 0);
EXPECT_EQ(priority.send_order, 0);
}
TEST(WebTransportStreamPriority, Equals) {
EXPECT_EQ(WebTransportStreamPriority(),
(WebTransportStreamPriority{0, 0, 0}));
EXPECT_NE(WebTransportStreamPriority(),
(WebTransportStreamPriority{1, 2, 3}));
EXPECT_NE(WebTransportStreamPriority(),
(WebTransportStreamPriority{0, 0, 1}));
}
TEST(QuicStreamPriority, Default) {
EXPECT_EQ(QuicStreamPriority().type(), QuicPriorityType::kHttp);
EXPECT_EQ(QuicStreamPriority().http(), HttpStreamPriority());
}
TEST(QuicStreamPriority, Equals) {
EXPECT_EQ(QuicStreamPriority(), QuicStreamPriority(HttpStreamPriority()));
}
TEST(QuicStreamPriority, Type) {
EXPECT_EQ(QuicStreamPriority(HttpStreamPriority()).type(),
QuicPriorityType::kHttp);
EXPECT_EQ(QuicStreamPriority(WebTransportStreamPriority()).type(),
QuicPriorityType::kWebTransport);
}
TEST(SerializePriorityFieldValueTest, SerializePriorityFieldValue) {
EXPECT_EQ("", SerializePriorityFieldValue(
{ 3, false}));
EXPECT_EQ("u=5", SerializePriorityFieldValue(
{ 5, false}));
EXPECT_EQ("i", SerializePriorityFieldValue(
{ 3, true}));
EXPECT_EQ("u=0, i", SerializePriorityFieldValue(
{ 0, true}));
EXPECT_EQ("i", SerializePriorityFieldValue(
{ 9, true}));
}
TEST(ParsePriorityFieldValueTest, ParsePriorityFieldValue) {
std::optional<HttpStreamPriority> result = ParsePriorityFieldValue("");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(3, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("i=?1");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(3, result->urgency);
EXPECT_TRUE(result->incremental);
result = ParsePriorityFieldValue("u=5");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(5, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("u=5, i");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(5, result->urgency);
EXPECT_TRUE(result->incremental);
result = ParsePriorityFieldValue("i, u=1");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(1, result->urgency);
EXPECT_TRUE(result->incremental);
result = ParsePriorityFieldValue("u=5, i=?1, i=?0, u=2");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(2, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("a=42, u=4, i=?0");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(4, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("u=-2, i");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(3, result->urgency);
EXPECT_TRUE(result->incremental);
result = ParsePriorityFieldValue("u=4.2, i=\"foo\"");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(3, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("a=4, b=?1");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(3, result->urgency);
EXPECT_FALSE(result->incremental);
result = ParsePriorityFieldValue("000");
EXPECT_FALSE(result.has_value());
result = ParsePriorityFieldValue("a=(1 2), u=1");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(1, result->urgency);
EXPECT_FALSE(result->incremental);
}
} |
273 | cpp | google/quiche | quic_connection_id_manager | quiche/quic/core/quic_connection_id_manager.cc | quiche/quic/core/quic_connection_id_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONNECTION_ID_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_CONNECTION_ID_MANAGER_H_
#include <cstddef>
#include <memory>
#include <optional>
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/frames/quic_new_connection_id_frame.h"
#include "quiche/quic/core/frames/quic_retire_connection_id_frame.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_interval_set.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicConnectionIdManagerPeer;
}
struct QUICHE_EXPORT QuicConnectionIdData {
QuicConnectionIdData(const QuicConnectionId& connection_id,
uint64_t sequence_number,
const StatelessResetToken& stateless_reset_token);
QuicConnectionId connection_id;
uint64_t sequence_number;
StatelessResetToken stateless_reset_token;
};
class QUICHE_EXPORT QuicConnectionIdManagerVisitorInterface {
public:
virtual ~QuicConnectionIdManagerVisitorInterface() = default;
virtual void OnPeerIssuedConnectionIdRetired() = 0;
virtual bool SendNewConnectionId(const QuicNewConnectionIdFrame& frame) = 0;
virtual bool MaybeReserveConnectionId(
const QuicConnectionId& connection_id) = 0;
virtual void OnSelfIssuedConnectionIdRetired(
const QuicConnectionId& connection_id) = 0;
};
class QUICHE_EXPORT QuicPeerIssuedConnectionIdManager {
public:
QuicPeerIssuedConnectionIdManager(
size_t active_connection_id_limit,
const QuicConnectionId& initial_peer_issued_connection_id,
const QuicClock* clock, QuicAlarmFactory* alarm_factory,
QuicConnectionIdManagerVisitorInterface* visitor,
QuicConnectionContext* context);
~QuicPeerIssuedConnectionIdManager();
QuicErrorCode OnNewConnectionIdFrame(const QuicNewConnectionIdFrame& frame,
std::string* error_detail,
bool* is_duplicate_frame);
bool HasUnusedConnectionId() const {
return !unused_connection_id_data_.empty();
}
const QuicConnectionIdData* ConsumeOneUnusedConnectionId();
void MaybeRetireUnusedConnectionIds(
const std::vector<QuicConnectionId>& active_connection_ids_on_path);
bool IsConnectionIdActive(const QuicConnectionId& cid) const;
std::vector<uint64_t> ConsumeToBeRetiredConnectionIdSequenceNumbers();
void ReplaceConnectionId(const QuicConnectionId& old_connection_id,
const QuicConnectionId& new_connection_id);
private:
friend class test::QuicConnectionIdManagerPeer;
void PrepareToRetireActiveConnectionId(const QuicConnectionId& cid);
bool IsConnectionIdNew(const QuicNewConnectionIdFrame& frame);
void PrepareToRetireConnectionIdPriorTo(
uint64_t retire_prior_to,
std::vector<QuicConnectionIdData>* cid_data_vector);
size_t active_connection_id_limit_;
const QuicClock* clock_;
std::unique_ptr<QuicAlarm> retire_connection_id_alarm_;
std::vector<QuicConnectionIdData> active_connection_id_data_;
std::vector<QuicConnectionIdData> unused_connection_id_data_;
std::vector<QuicConnectionIdData> to_be_retired_connection_id_data_;
QuicIntervalSet<uint64_t> recent_new_connection_id_sequence_numbers_;
uint64_t max_new_connection_id_frame_retire_prior_to_ = 0u;
};
class QUICHE_EXPORT QuicSelfIssuedConnectionIdManager {
public:
QuicSelfIssuedConnectionIdManager(
size_t active_connection_id_limit,
const QuicConnectionId& initial_connection_id, const QuicClock* clock,
QuicAlarmFactory* alarm_factory,
QuicConnectionIdManagerVisitorInterface* visitor,
QuicConnectionContext* context,
ConnectionIdGeneratorInterface& generator);
virtual ~QuicSelfIssuedConnectionIdManager();
std::optional<QuicNewConnectionIdFrame>
MaybeIssueNewConnectionIdForPreferredAddress();
QuicErrorCode OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame, QuicTime::Delta pto_delay,
std::string* error_detail);
std::vector<QuicConnectionId> GetUnretiredConnectionIds() const;
QuicConnectionId GetOneActiveConnectionId() const;
void RetireConnectionId();
void MaybeSendNewConnectionIds();
bool HasConnectionIdToConsume() const;
std::optional<QuicConnectionId> ConsumeOneConnectionId();
bool IsConnectionIdInUse(const QuicConnectionId& cid) const;
private:
friend class test::QuicConnectionIdManagerPeer;
std::optional<QuicNewConnectionIdFrame> MaybeIssueNewConnectionId();
size_t active_connection_id_limit_;
const QuicClock* clock_;
QuicConnectionIdManagerVisitorInterface* visitor_;
std::vector<std::pair<QuicConnectionId, uint64_t>> active_connection_ids_;
std::vector<std::pair<QuicConnectionId, QuicTime>>
to_be_retired_connection_ids_;
std::unique_ptr<QuicAlarm> retire_connection_id_alarm_;
QuicConnectionId last_connection_id_;
uint64_t next_connection_id_sequence_number_;
uint64_t last_connection_id_consumed_by_self_sequence_number_;
ConnectionIdGeneratorInterface& connection_id_generator_;
};
}
#endif
#include "quiche/quic/core/quic_connection_id_manager.h"
#include <algorithm>
#include <cstdio>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
QuicConnectionIdData::QuicConnectionIdData(
const QuicConnectionId& connection_id, uint64_t sequence_number,
const StatelessResetToken& stateless_reset_token)
: connection_id(connection_id),
sequence_number(sequence_number),
stateless_reset_token(stateless_reset_token) {}
namespace {
class RetirePeerIssuedConnectionIdAlarm
: public QuicAlarm::DelegateWithContext {
public:
explicit RetirePeerIssuedConnectionIdAlarm(
QuicConnectionIdManagerVisitorInterface* visitor,
QuicConnectionContext* context)
: QuicAlarm::DelegateWithContext(context), visitor_(visitor) {}
RetirePeerIssuedConnectionIdAlarm(const RetirePeerIssuedConnectionIdAlarm&) =
delete;
RetirePeerIssuedConnectionIdAlarm& operator=(
const RetirePeerIssuedConnectionIdAlarm&) = delete;
void OnAlarm() override { visitor_->OnPeerIssuedConnectionIdRetired(); }
private:
QuicConnectionIdManagerVisitorInterface* visitor_;
};
std::vector<QuicConnectionIdData>::const_iterator FindConnectionIdData(
const std::vector<QuicConnectionIdData>& cid_data_vector,
const QuicConnectionId& cid) {
return std::find_if(cid_data_vector.begin(), cid_data_vector.end(),
[&cid](const QuicConnectionIdData& cid_data) {
return cid == cid_data.connection_id;
});
}
std::vector<QuicConnectionIdData>::iterator FindConnectionIdData(
std::vector<QuicConnectionIdData>* cid_data_vector,
const QuicConnectionId& cid) {
return std::find_if(cid_data_vector->begin(), cid_data_vector->end(),
[&cid](const QuicConnectionIdData& cid_data) {
return cid == cid_data.connection_id;
});
}
}
QuicPeerIssuedConnectionIdManager::QuicPeerIssuedConnectionIdManager(
size_t active_connection_id_limit,
const QuicConnectionId& initial_peer_issued_connection_id,
const QuicClock* clock, QuicAlarmFactory* alarm_factory,
QuicConnectionIdManagerVisitorInterface* visitor,
QuicConnectionContext* context)
: active_connection_id_limit_(active_connection_id_limit),
clock_(clock),
retire_connection_id_alarm_(alarm_factory->CreateAlarm(
new RetirePeerIssuedConnectionIdAlarm(visitor, context))) {
QUICHE_DCHECK_GE(active_connection_id_limit_, 2u);
QUICHE_DCHECK(!initial_peer_issued_connection_id.IsEmpty());
active_connection_id_data_.emplace_back<const QuicConnectionId&, uint64_t,
const StatelessResetToken&>(
initial_peer_issued_connection_id,
0u, {});
recent_new_connection_id_sequence_numbers_.Add(0u, 1u);
}
QuicPeerIssuedConnectionIdManager::~QuicPeerIssuedConnectionIdManager() {
retire_connection_id_alarm_->Cancel();
}
bool QuicPeerIssuedConnectionIdManager::IsConnectionIdNew(
const QuicNewConnectionIdFrame& frame) {
auto is_old_connection_id = [&frame](const QuicConnectionIdData& cid_data) {
return cid_data.connection_id == frame.connection_id;
};
if (std::any_of(active_connection_id_data_.begin(),
active_connection_id_data_.end(), is_old_connection_id)) {
return false;
}
if (std::any_of(unused_connection_id_data_.begin(),
unused_connection_id_data_.end(), is_old_connection_id)) {
return false;
}
if (std::any_of(to_be_retired_connection_id_data_.begin(),
to_be_retired_connection_id_data_.end(),
is_old_connection_id)) {
return false;
}
return true;
}
void QuicPeerIssuedConnectionIdManager::PrepareToRetireConnectionIdPriorTo(
uint64_t retire_prior_to,
std::vector<QuicConnectionIdData>* cid_data_vector) {
auto it2 = cid_data_vector->begin();
for (auto it = cid_data_vector->begin(); it != cid_data_vector->end(); ++it) {
if (it->sequence_number >= retire_prior_to) {
*it2++ = *it;
} else {
to_be_retired_connection_id_data_.push_back(*it);
if (!retire_connection_id_alarm_->IsSet()) {
retire_connection_id_alarm_->Set(clock_->ApproximateNow());
}
}
}
cid_data_vector->erase(it2, cid_data_vector->end());
}
QuicErrorCode QuicPeerIssuedConnectionIdManager::OnNewConnectionIdFrame(
const QuicNewConnectionIdFrame& frame, std::string* error_detail,
bool* is_duplicate_frame) {
if (recent_new_connection_id_sequence_numbers_.Contains(
frame.sequence_number)) {
*is_duplicate_frame = true;
return QUIC_NO_ERROR;
}
if (!IsConnectionIdNew(frame)) {
*error_detail =
"Received a NEW_CONNECTION_ID frame that reuses a previously seen Id.";
return IETF_QUIC_PROTOCOL_VIOLATION;
}
recent_new_connection_id_sequence_numbers_.AddOptimizedForAppend(
frame.sequence_number, frame.sequence_number + 1);
if (recent_new_connection_id_sequence_numbers_.Size() >
kMaxNumConnectionIdSequenceNumberIntervals) {
*error_detail =
"Too many disjoint connection Id sequence number intervals.";
return IETF_QUIC_PROTOCOL_VIOLATION;
}
if (frame.sequence_number < max_new_connection_id_frame_retire_prior_to_) {
to_be_retired_connection_id_data_.emplace_back(frame.connection_id,
frame.sequence_number,
frame.stateless_reset_token);
if (!retire_connection_id_alarm_->IsSet()) {
retire_connection_id_alarm_->Set(clock_->ApproximateNow());
}
return QUIC_NO_ERROR;
}
if (frame.retire_prior_to > max_new_connection_id_frame_retire_prior_to_) {
max_new_connection_id_frame_retire_prior_to_ = frame.retire_prior_to;
PrepareToRetireConnectionIdPriorTo(frame.retire_prior_to,
&active_connection_id_data_);
PrepareToRetireConnectionIdPriorTo(frame.retire_prior_to,
&unused_connection_id_data_);
}
if (active_connection_id_data_.size() + unused_connection_id_data_.size() >=
active_connection_id_limit_) {
*error_detail = "Peer provides more connection IDs than the limit.";
return QUIC_CONNECTION_ID_LIMIT_ERROR;
}
unused_connection_id_data_.emplace_back(
frame.connection_id, frame.sequence_number, frame.stateless_reset_token);
return QUIC_NO_ERROR;
}
const QuicConnectionIdData*
QuicPeerIssuedConnectionIdManager::ConsumeOneUnusedConnectionId() {
if (unused_connection_id_data_.empty()) {
return nullptr;
}
active_connection_id_data_.push_back(unused_connection_id_data_.back());
unused_connection_id_data_.pop_back();
return &active_connection_id_data_.back();
}
void QuicPeerIssuedConnectionIdManager::PrepareToRetireActiveConnectionId(
const QuicConnectionId& cid) {
auto it = FindConnectionIdData(active_connection_id_data_, cid);
if (it == active_connection_id_data_.end()) {
return;
}
to_be_retired_connection_id_data_.push_back(*it);
active_connection_id_data_.erase(it);
if (!retire_connection_id_alarm_->IsSet()) {
retire_connection_id_alarm_->Set(clock_->ApproximateNow());
}
}
void QuicPeerIssuedConnectionIdManager::MaybeRetireUnusedConnectionIds(
const std::vector<QuicConnectionId>& active_connection_ids_on_path) {
std::vector<QuicConnectionId> cids_to_retire;
for (const auto& cid_data : active_connection_id_data_) {
if (std::find(active_connection_ids_on_path.begin(),
active_connection_ids_on_path.end(),
cid_data.connection_id) ==
active_connection_ids_on_path.end()) {
cids_to_retire.push_back(cid_data.connection_id);
}
}
for (const auto& cid : cids_to_retire) {
PrepareToRetireActiveConnectionId(cid);
}
}
bool QuicPeerIssuedConnectionIdManager::IsConnectionIdActive(
const QuicConnectionId& cid) const {
return FindConnectionIdData(active_connection_id_data_, cid) !=
active_connection_id_data_.end();
}
std::vector<uint64_t> QuicPeerIssuedConnectionIdManager::
ConsumeToBeRetiredConnectionIdSequenceNumbers() {
std::vector<uint64_t> result;
for (auto const& cid_data : to_be_retired_connection_id_data_) {
result.push_back(cid_data.sequence_number);
}
to_be_retired_connection_id_data_.clear();
return result;
}
void QuicPeerIssuedConnectionIdManager::ReplaceConnectionId(
const QuicConnectionId& old_connection_id,
const QuicConnectionId& new_connection_id) {
auto it1 =
FindConnectionIdData(&active_connection_id_data_, old_connection_id);
if (it1 != active_connection_id_data_.end()) {
it1->connection_id = new_connection_id;
return;
}
auto it2 = FindConnectionIdData(&to_be_retired_connection_id_data_,
old_connection_id);
if (it2 != to_be_retired_connection_id_data_.end()) {
it2->connection_id = new_connection_id;
}
}
namespace {
class RetireSelfIssuedConnectionIdAlarmDelegate
: public QuicAlarm::DelegateWithContext {
public:
explicit RetireSelfIssuedConnectionIdAlarmDelegate(
QuicSelfIssuedConnectionIdManager* connection_id_manager,
QuicConnectionContext* context)
: QuicAlarm::DelegateWithContext(context),
connection_id_manager_(connection_id_manager) {}
RetireSelfIssuedConnectionIdAlarmDelegate(
const RetireSelfIssuedConnectionIdAlarmDelegate&) = delete;
RetireSelfIssuedConnectionIdAlarmDelegate& operator=(
const RetireSelfIssuedConnectionIdAlarmDelegate&) = delete;
void OnAlarm() override { connection_id_manager_->RetireConnectionId(); }
private:
QuicSelfIssuedConnectionIdManager* connection_id_manager_;
};
}
QuicSelfIssuedConnectionIdManager::QuicSelfIssuedConnectionIdManager(
size_t active_connection_id_limit,
const QuicConnectionId& initial_connection_id, const QuicClock* clock,
QuicAlarmFactory* alarm_factory,
QuicConnectionIdManagerVisitorInterface* visitor,
QuicConnectionContext* context, ConnectionIdGeneratorInterface& generator)
: active_connection_id_limit_(active_connection_id_limit),
clock_(clock),
visitor_(visitor),
retire_connection_id_alarm_(alarm_factory->CreateAlarm(
new RetireSelfIssuedConnectionIdAlarmDelegate(this, context))),
last_connection_id_(initial_connection_id),
next_connection_id_sequence_number_(1u),
last_connection_id_consumed_by_self_sequence_number_(0u),
connection_id_generator_(generator) {
active_connection_ids_.emplace_back(initial_connection_id, 0u);
}
QuicSelfIssuedConnectionIdManager::~QuicSelfIssuedConnectionIdManager() {
retire_connection_id_alarm_->Cancel();
}
std::optional<QuicNewConnectionIdFrame>
QuicSelfIssuedConnectionIdManager::MaybeIssueNewConnectionId() {
std::optional<QuicConnectionId> new_cid =
connection_id_generator_.GenerateNextConnectionId(last_connection_id_);
if (!new_cid.has_value()) {
return {};
}
if (!visitor_->MaybeReserveConnectionId(*new_cid)) {
return {};
}
QuicNewConnectionIdFrame frame;
frame.connection_id = *new_cid;
frame.sequence_number = next_connection_id_sequence_number_++;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
active_connection_ids_.emplace_back(frame.connection_id,
frame.sequence_number);
frame.retire_prior_to = active_connection_ids_.front().second;
last_connection_id_ = frame.connection_id;
return frame;
}
std::optional<QuicNewConnectionIdFrame> QuicSelfIssuedConnectionIdManager::
MaybeIssueNewConnectionIdForPreferredAddress() {
std::optional<QuicNewConnectionIdFrame> frame = MaybeIssueNewConnectionId();
QUICHE_DCHECK(!frame.has_value() || (frame->sequence_number == 1u));
return frame;
}
QuicErrorCode QuicSelfIssuedConnectionIdManager::OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame, QuicTime::Delta pto_delay,
std::string* error_detail) {
QUICHE_DCHECK(!active_connection_ids_.empty());
if (frame.sequence_number >= next_connection_id_sequence_number_) {
*error_detail = "To be retired connecton ID is never issued.";
return IETF_QUIC_PROTOCOL_VIOLATION;
}
auto it =
std::find_if(active_connection_ids_.begin(), active_connection_ids_.end(),
[&frame](const std::pair<QuicConnectionId, uint64_t>& p) {
return p.second == frame.sequence_number;
});
if (it == active_connection_ids_.end()) {
return QUIC_NO_ERROR;
}
if (to_be_retired_connection_ids_.size() + active_connection_ids_.size() >=
kMaxNumConnectonIdsInUse) {
*error_detail = "There are too many connection IDs in use.";
return QUIC_TOO_MANY_CONNECTION_ID_WAITING_TO_RETIRE;
}
QuicTime retirement_time = clock_->ApproximateNow() + 3 * pto_delay;
if (!to_be_retired_connection_ids_.empty()) {
retirement_time =
std::max(retirement_time, to_be_retired_connection_ids_.back().second);
}
to_be_retired_connection_ids_.emplace_back(it->first, retirement_time);
if (!retire_connection_id_alarm_->IsSet()) {
retire_connection_id_alarm_->Set(retirement_time);
}
active_connection_ids_.erase(it);
MaybeSendNewConnectionIds();
return QUIC_NO_ERROR;
}
std::vector<QuicConnectionId>
QuicSelfIssuedConnectionIdManager::GetUnretiredConnectionIds() const {
std::vector<QuicConnectionId> unretired_ids;
for (const auto& cid_pair : to_be_retired_connection_ids_) {
unretired_ids.push_back(cid_pair.first);
}
for (const auto& cid_pair : active_connection_ids_) {
unretired_ids.push_back(cid_pair.first);
}
return unretired_ids;
}
QuicConnectionId QuicSelfIssuedConnectionIdManager::GetOneActiveConnectionId()
const {
QUICHE_DCHECK(!active_connection_ids_.empty());
return active_connection_ids_.front().first;
}
void QuicSelfIssuedConnectionIdManager::RetireConnectionId() {
if (to_be_retired_connection_ids_.empty()) {
QUIC_BUG(quic_bug_12420_1)
<< "retire_connection_id_alarm fired but there is no connection ID "
"to be retired.";
return;
}
QuicTime now = clock_->ApproximateNow();
auto it = to_be_retired_connection_ids_.begin();
do {
visitor_->OnSelfIssuedConnectionIdRetired(it->first);
++it;
} while (it != to_be_retired_connection_ids_.end() && it->second <= now);
to_be_retired_connection_ids_.erase(to_be_retired_connection_ids_.begin(),
it);
if (!to_be_retired_connection_ids_.empty()) {
retire_connection_id_alarm_->Set(
to_be_retired_connection_ids_.front().second);
}
}
void QuicSelfIssuedConnectionIdManager::MaybeSendNewConnectionIds() {
while (active_connection_ids_.size() < active_connection_id_limit_) {
std::optional<QuicNewConnectionIdFrame> frame = MaybeIssueNewConnectionId();
if (!frame.has_value()) {
break;
}
if (!visitor_->SendNewConnectionId(*frame)) {
break;
}
}
}
bool QuicSelfIssuedConnectionIdManager::HasConnectionIdToConsume() const {
for (const auto& active_cid_data : active_connection_ids_) {
if (active_cid_data.second >
last_connection_id_consumed_by_self_sequence_number_) {
return true;
}
}
return false;
}
std::optional<QuicConnectionId>
QuicSelfIssuedConnectionIdManager::ConsumeOneConnectionId() {
for (const auto& active_cid_data : active_connection_ids_) {
if (active_cid_data.second >
last_connection_id_consumed_by_self_sequence_number_) {
last_connection_id_consumed_by_self_sequence_number_ =
active_cid_data.second;
return active_cid_data.first;
}
}
return std::nullopt;
}
bool QuicSelfIssuedConnectionIdManager::IsConnectionIdInUse(
const QuicConnectionId& cid) const {
for (const auto& active_cid_data : active_connection_ids_) {
if (active_cid_data.first == cid) {
return true;
}
}
for (const auto& to_be_retired_cid_data : to_be_retired_connection_ids_) {
if (to_be_retired_cid_data.first == cid) {
return true;
}
}
return false;
}
} | #include "quiche/quic/core/quic_connection_id_manager.h"
#include <cstddef>
#include <optional>
#include <string>
#include <vector>
#include "quiche/quic/core/frames/quic_retire_connection_id_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
#include "quiche/quic/test_tools/mock_connection_id_generator.h"
#include "quiche/quic/test_tools/quic_connection_id_manager_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic::test {
namespace {
using ::quic::test::IsError;
using ::quic::test::IsQuicNoError;
using ::quic::test::QuicConnectionIdManagerPeer;
using ::quic::test::TestConnectionId;
using ::testing::_;
using ::testing::ElementsAre;
using ::testing::IsNull;
using ::testing::Return;
using ::testing::StrictMock;
class TestPeerIssuedConnectionIdManagerVisitor
: public QuicConnectionIdManagerVisitorInterface {
public:
void SetPeerIssuedConnectionIdManager(
QuicPeerIssuedConnectionIdManager* peer_issued_connection_id_manager) {
peer_issued_connection_id_manager_ = peer_issued_connection_id_manager;
}
void OnPeerIssuedConnectionIdRetired() override {
if (!peer_issued_connection_id_manager_->IsConnectionIdActive(
current_peer_issued_connection_id_)) {
current_peer_issued_connection_id_ =
peer_issued_connection_id_manager_->ConsumeOneUnusedConnectionId()
->connection_id;
}
most_recent_retired_connection_id_sequence_numbers_ =
peer_issued_connection_id_manager_
->ConsumeToBeRetiredConnectionIdSequenceNumbers();
}
const std::vector<uint64_t>&
most_recent_retired_connection_id_sequence_numbers() {
return most_recent_retired_connection_id_sequence_numbers_;
}
void SetCurrentPeerConnectionId(QuicConnectionId cid) {
current_peer_issued_connection_id_ = cid;
}
const QuicConnectionId& GetCurrentPeerConnectionId() {
return current_peer_issued_connection_id_;
}
bool SendNewConnectionId(const QuicNewConnectionIdFrame& ) override {
return false;
}
bool MaybeReserveConnectionId(const QuicConnectionId&) override {
return false;
}
void OnSelfIssuedConnectionIdRetired(
const QuicConnectionId& ) override {}
private:
QuicPeerIssuedConnectionIdManager* peer_issued_connection_id_manager_ =
nullptr;
QuicConnectionId current_peer_issued_connection_id_;
std::vector<uint64_t> most_recent_retired_connection_id_sequence_numbers_;
};
class QuicPeerIssuedConnectionIdManagerTest : public QuicTest {
public:
QuicPeerIssuedConnectionIdManagerTest()
: peer_issued_cid_manager_(
2, initial_connection_id_, &clock_,
&alarm_factory_, &cid_manager_visitor_, nullptr) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(10));
cid_manager_visitor_.SetPeerIssuedConnectionIdManager(
&peer_issued_cid_manager_);
cid_manager_visitor_.SetCurrentPeerConnectionId(initial_connection_id_);
retire_peer_issued_cid_alarm_ =
QuicConnectionIdManagerPeer::GetRetirePeerIssuedConnectionIdAlarm(
&peer_issued_cid_manager_);
}
protected:
MockClock clock_;
test::MockAlarmFactory alarm_factory_;
TestPeerIssuedConnectionIdManagerVisitor cid_manager_visitor_;
QuicConnectionId initial_connection_id_ = TestConnectionId(0);
QuicPeerIssuedConnectionIdManager peer_issued_cid_manager_;
QuicAlarm* retire_peer_issued_cid_alarm_ = nullptr;
std::string error_details_;
bool duplicate_frame_ = false;
};
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ConnectionIdSequenceWhenMigrationSucceed) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
const QuicConnectionIdData* aternative_connection_id_data =
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
ASSERT_THAT(aternative_connection_id_data, testing::NotNull());
EXPECT_EQ(aternative_connection_id_data->connection_id,
TestConnectionId(1));
EXPECT_EQ(aternative_connection_id_data->stateless_reset_token,
frame.stateless_reset_token);
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{TestConnectionId(1)});
cid_manager_visitor_.SetCurrentPeerConnectionId(TestConnectionId(1));
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(0u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(2);
frame.sequence_number = 2u;
frame.retire_prior_to = 1u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{TestConnectionId(2)});
cid_manager_visitor_.SetCurrentPeerConnectionId(TestConnectionId(2));
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(1u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(3);
frame.sequence_number = 3u;
frame.retire_prior_to = 2u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{TestConnectionId(3)});
cid_manager_visitor_.SetCurrentPeerConnectionId(TestConnectionId(3));
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(2u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(4);
frame.sequence_number = 4u;
frame.retire_prior_to = 3u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ConnectionIdSequenceWhenMigrationFail) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{initial_connection_id_});
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(1u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(2);
frame.sequence_number = 2u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{initial_connection_id_});
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(2u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(3);
frame.sequence_number = 3u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{TestConnectionId(3)});
cid_manager_visitor_.SetCurrentPeerConnectionId(TestConnectionId(3));
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(0u));
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(4);
frame.sequence_number = 4u;
frame.retire_prior_to = 3u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
EXPECT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
EXPECT_FALSE(retire_peer_issued_cid_alarm_->IsSet());
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ReceivesNewConnectionIdOutOfOrder) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(3);
frame.sequence_number = 3u;
frame.retire_prior_to = 2u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(2);
frame.sequence_number = 2u;
frame.retire_prior_to = 1u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
{
EXPECT_FALSE(
peer_issued_cid_manager_.IsConnectionIdActive(TestConnectionId(0)));
EXPECT_FALSE(
peer_issued_cid_manager_.IsConnectionIdActive(TestConnectionId(1)));
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(cid_manager_visitor_
.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(0u, 1u));
EXPECT_EQ(cid_manager_visitor_.GetCurrentPeerConnectionId(),
TestConnectionId(2));
EXPECT_EQ(
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId()->connection_id,
TestConnectionId(3));
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
VisitedNewConnectionIdFrameIsIgnored) {
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId();
peer_issued_cid_manager_.MaybeRetireUnusedConnectionIds(
{initial_connection_id_});
ASSERT_TRUE(retire_peer_issued_cid_alarm_->IsSet());
alarm_factory_.FireAlarm(retire_peer_issued_cid_alarm_);
EXPECT_THAT(
cid_manager_visitor_.most_recent_retired_connection_id_sequence_numbers(),
ElementsAre(1u));
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
EXPECT_EQ(true, duplicate_frame_);
EXPECT_THAT(peer_issued_cid_manager_.ConsumeOneUnusedConnectionId(),
testing::IsNull());
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ErrorWhenActiveConnectionIdLimitExceeded) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(2);
frame.sequence_number = 2u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsError(QUIC_CONNECTION_ID_LIMIT_ERROR));
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ErrorWhenTheSameConnectionIdIsSeenWithDifferentSequenceNumbers) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 2u;
frame.retire_prior_to = 1u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(TestConnectionId(2));
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsError(IETF_QUIC_PROTOCOL_VIOLATION));
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
NewConnectionIdFrameWithTheSameSequenceNumberIsIgnored) {
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(1);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
{
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(2);
frame.sequence_number = 1u;
frame.retire_prior_to = 0u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(TestConnectionId(2));
EXPECT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
EXPECT_EQ(true, duplicate_frame_);
EXPECT_EQ(
peer_issued_cid_manager_.ConsumeOneUnusedConnectionId()->connection_id,
TestConnectionId(1));
EXPECT_THAT(peer_issued_cid_manager_.ConsumeOneUnusedConnectionId(),
IsNull());
}
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest,
ErrorWhenThereAreTooManyGapsInIssuedConnectionIdSequenceNumbers) {
for (int i = 2; i <= 38; i += 2) {
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(i);
frame.sequence_number = i;
frame.retire_prior_to = i;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsQuicNoError());
}
QuicNewConnectionIdFrame frame;
frame.connection_id = TestConnectionId(40);
frame.sequence_number = 40u;
frame.retire_prior_to = 40u;
frame.stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(frame.connection_id);
ASSERT_THAT(peer_issued_cid_manager_.OnNewConnectionIdFrame(
frame, &error_details_, &duplicate_frame_),
IsError(IETF_QUIC_PROTOCOL_VIOLATION));
}
TEST_F(QuicPeerIssuedConnectionIdManagerTest, ReplaceConnectionId) {
ASSERT_TRUE(
peer_issued_cid_manager_.IsConnectionIdActive(initial_connection_id_));
peer_issued_cid_manager_.ReplaceConnectionId(initial_connection_id_,
TestConnectionId(1));
EXPECT_FALSE(
peer_issued_cid_manager_.IsConnectionIdActive(initial_connection_id_));
EXPECT_TRUE(
peer_issued_cid_manager_.IsConnectionIdActive(TestConnectionId(1)));
}
class TestSelfIssuedConnectionIdManagerVisitor
: public QuicConnectionIdManagerVisitorInterface {
public:
void OnPeerIssuedConnectionIdRetired() override {}
MOCK_METHOD(bool, SendNewConnectionId,
(const QuicNewConnectionIdFrame& frame), (override));
MOCK_METHOD(bool, MaybeReserveConnectionId,
(const QuicConnectionId& connection_id), (override));
MOCK_METHOD(void, OnSelfIssuedConnectionIdRetired,
(const QuicConnectionId& connection_id), (override));
};
class QuicSelfIssuedConnectionIdManagerTest : public QuicTest {
public:
QuicSelfIssuedConnectionIdManagerTest()
: cid_manager_( 2, initial_connection_id_,
&clock_, &alarm_factory_, &cid_manager_visitor_,
nullptr, connection_id_generator_) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(10));
retire_self_issued_cid_alarm_ =
QuicConnectionIdManagerPeer::GetRetireSelfIssuedConnectionIdAlarm(
&cid_manager_);
}
protected:
QuicConnectionId CheckGenerate(QuicConnectionId old_cid) {
QuicConnectionId new_cid = old_cid;
(*new_cid.mutable_data())++;
EXPECT_CALL(connection_id_generator_, GenerateNextConnectionId(old_cid))
.WillOnce(Return(new_cid));
return new_cid;
}
MockClock clock_;
test::MockAlarmFactory alarm_factory_;
TestSelfIssuedConnectionIdManagerVisitor cid_manager_visitor_;
QuicConnectionId initial_connection_id_ = TestConnectionId(0);
StrictMock<QuicSelfIssuedConnectionIdManager> cid_manager_;
QuicAlarm* retire_self_issued_cid_alarm_ = nullptr;
std::string error_details_;
QuicTime::Delta pto_delay_ = QuicTime::Delta::FromMilliseconds(10);
MockConnectionIdGenerator connection_id_generator_;
};
MATCHER_P3(ExpectedNewConnectionIdFrame, connection_id, sequence_number,
retire_prior_to, "") {
return (arg.connection_id == connection_id) &&
(arg.sequence_number == sequence_number) &&
(arg.retire_prior_to == retire_prior_to);
}
TEST_F(QuicSelfIssuedConnectionIdManagerTest,
RetireSelfIssuedConnectionIdInOrder) {
QuicConnectionId cid0 = initial_connection_id_;
QuicConnectionId cid1 = CheckGenerate(cid0);
QuicConnectionId cid2 = CheckGenerate(cid1);
QuicConnectionId cid3 = CheckGenerate(cid2);
QuicConnectionId cid4 = CheckGenerate(cid3);
QuicConnectionId cid5 = CheckGenerate(cid4);
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid1))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid1, 1u, 0u)))
.WillOnce(Return(true));
cid_manager_.MaybeSendNewConnectionIds();
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid2))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid2, 2u, 1u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 0u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid3))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid3, 3u, 2u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 1u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid4))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid4, 4u, 3u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 2u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid5))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid5, 5u, 4u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 3u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
}
TEST_F(QuicSelfIssuedConnectionIdManagerTest,
RetireSelfIssuedConnectionIdOutOfOrder) {
QuicConnectionId cid0 = initial_connection_id_;
QuicConnectionId cid1 = CheckGenerate(cid0);
QuicConnectionId cid2 = CheckGenerate(cid1);
QuicConnectionId cid3 = CheckGenerate(cid2);
QuicConnectionId cid4 = CheckGenerate(cid3);
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid1))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid1, 1u, 0u)))
.WillOnce(Return(true));
cid_manager_.MaybeSendNewConnectionIds();
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid2))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid2, 2u, 0u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 1u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 1u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid3))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid3, 3u, 2u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 0u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(cid4))
.WillOnce(Return(true));
EXPECT_CALL(cid_manager_visitor_,
SendNewConnectionId(ExpectedNewConnectionIdFrame(cid4, 4u, 2u)))
.WillOnce(Return(true));
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 3u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
{
QuicRetireConnectionIdFrame retire_cid_frame;
retire_cid_frame.sequence_number = 0u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
}
}
TEST_F(QuicSelfIssuedConnectionIdManagerTest,
ScheduleConnectionIdRetirementOneAtATime) {
QuicConnectionId cid0 = initial_connection_id_;
QuicConnectionId cid1 = CheckGenerate(cid0);
QuicConnectionId cid2 = CheckGenerate(cid1);
QuicConnectionId cid3 = CheckGenerate(cid2);
EXPECT_CALL(cid_manager_visitor_, MaybeReserveConnectionId(_))
.Times(3)
.WillRepeatedly(Return(true));
EXPECT_CALL(cid_manager_visitor_, SendNewConnectionId(_))
.Times(3)
.WillRepeatedly(Return(true));
QuicTime::Delta connection_id_expire_timeout = 3 * pto_delay_;
QuicRetireConnectionIdFrame retire_cid_frame;
cid_manager_.MaybeSendNewConnectionIds();
retire_cid_frame.sequence_number = 0u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
EXPECT_THAT(cid_manager_.GetUnretiredConnectionIds(),
ElementsAre(cid0, cid1, cid2));
EXPECT_TRUE(retire_self_issued_cid_alarm_->IsSet());
EXPECT_EQ(retire_self_issued_cid_alarm_->deadline(),
clock_.ApproximateNow() + connection_id_expire_timeout);
EXPECT_CALL(cid_manager_visitor_, OnSelfIssuedConnectionIdRetired(cid0));
clock_.AdvanceTime(connection_id_expire_timeout);
alarm_factory_.FireAlarm(retire_self_issued_cid_alarm_);
EXPECT_THAT(cid_manager_.GetUnretiredConnectionIds(),
ElementsAre(cid1, cid2));
EXPECT_FALSE(retire_self_issued_cid_alarm_->IsSet());
retire_cid_frame.sequence_number = 1u;
ASSERT_THAT(cid_manager_.OnRetireConnectionIdFrame(
retire_cid_frame, pto_delay_, &error_details_),
IsQuicNoError());
EXPECT_THAT(cid_manager_.GetUnretiredConnectionIds(),
ElementsAre(cid1, cid2, cid3));
EXPECT_TRUE(retire_self_issued_cid_alarm_->IsSet());
EXPECT_EQ(retire_self_issued_cid_alarm_->deadline(),
clock_.ApproximateNow() + connection_id_expire_timeout);
EXPECT_CALL(cid_manager_visitor_, OnSelfIssuedConnectionIdRetired(cid1));
clock_.AdvanceTime(connection_id_expire_timeout);
alarm_factory_.FireAlarm(retire_self_issued_cid_alarm_);
EXPECT_THAT(cid_manager_.GetUnretiredConnectionIds(),
ElementsAre(cid2, cid3));
EXPECT_FALSE(retire_self_issued_cid_alarm_->IsSet());
}
TEST_F(QuicSelfIssuedConnectionIdManagerTest,
ScheduleMultipleConnectionIdRetirement) {
QuicConnectionId cid0 = initial_connection_id_;
QuicConnectionId cid1 = CheckGenerate(cid0);
QuicConnectionId cid2 = CheckGenerate(cid1);
QuicConnectionId cid3 = CheckGenerate(cid2);
EXPECT_CALL(cid_manager_visitor_, M |
274 | cpp | google/quiche | quic_connection | quiche/quic/core/quic_connection.cc | quiche/quic/core/quic_connection_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONNECTION_H_
#define QUICHE_QUIC_CORE_QUIC_CONNECTION_H_
#include <cstddef>
#include <cstdint>
#include <list>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_max_streams_frame.h"
#include "quiche/quic/core/frames/quic_new_connection_id_frame.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/core/quic_connection_alarms.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_connection_id_manager.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_idle_network_detector.h"
#include "quiche/quic/core/quic_lru_cache.h"
#include "quiche/quic/core/quic_mtu_discovery.h"
#include "quiche/quic/core/quic_network_blackhole_detector.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_path_validator.h"
#include "quiche/quic/core/quic_ping_manager.h"
#include "quiche/quic/core/quic_sent_packet_manager.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/uber_received_packet_manager.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
class QuicClock;
class QuicConfig;
class QuicConnection;
namespace test {
class QuicConnectionPeer;
}
class QUICHE_EXPORT MultiPortPathContextObserver {
public:
virtual void OnMultiPortPathContextAvailable(
std::unique_ptr<QuicPathValidationContext>) = 0;
virtual ~MultiPortPathContextObserver() = default;
};
class QUICHE_EXPORT QuicConnectionVisitorInterface {
public:
virtual ~QuicConnectionVisitorInterface() {}
virtual void OnStreamFrame(const QuicStreamFrame& frame) = 0;
virtual void OnCryptoFrame(const QuicCryptoFrame& frame) = 0;
virtual void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) = 0;
virtual void OnBlockedFrame(const QuicBlockedFrame& frame) = 0;
virtual void OnRstStream(const QuicRstStreamFrame& frame) = 0;
virtual void OnGoAway(const QuicGoAwayFrame& frame) = 0;
virtual void OnMessageReceived(absl::string_view message) = 0;
virtual void OnHandshakeDoneReceived() = 0;
virtual void OnNewTokenReceived(absl::string_view token) = 0;
virtual bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) = 0;
virtual bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) = 0;
virtual void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source) = 0;
virtual void OnWriteBlocked() = 0;
virtual void OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& version) = 0;
virtual void OnPacketReceived(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
bool is_connectivity_probe) = 0;
virtual void OnCanWrite() = 0;
virtual void OnCongestionWindowChange(QuicTime now) = 0;
virtual void OnConnectionMigration(AddressChangeType type) = 0;
virtual void OnPathDegrading() = 0;
virtual void OnForwardProgressMadeAfterPathDegrading() = 0;
virtual void OnAckNeedsRetransmittableFrame() = 0;
virtual void SendAckFrequency(const QuicAckFrequencyFrame& frame) = 0;
virtual void SendNewConnectionId(const QuicNewConnectionIdFrame& frame) = 0;
virtual void SendRetireConnectionId(uint64_t sequence_number) = 0;
virtual bool MaybeReserveConnectionId(
const QuicConnectionId& server_connection_id) = 0;
virtual void OnServerConnectionIdRetired(
const QuicConnectionId& server_connection_id) = 0;
virtual bool WillingAndAbleToWrite() const = 0;
virtual bool ShouldKeepConnectionAlive() const = 0;
virtual std::string GetStreamsInfoForLogging() const = 0;
virtual bool AllowSelfAddressChange() const = 0;
virtual HandshakeState GetHandshakeState() const = 0;
virtual void OnStopSendingFrame(const QuicStopSendingFrame& frame) = 0;
virtual void OnPacketDecrypted(EncryptionLevel level) = 0;
virtual void OnOneRttPacketAcknowledged() = 0;
virtual void OnHandshakePacketSent() = 0;
virtual void OnKeyUpdate(KeyUpdateReason reason) = 0;
virtual std::unique_ptr<QuicDecrypter>
AdvanceKeysAndCreateCurrentOneRttDecrypter() = 0;
virtual std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() = 0;
virtual void BeforeConnectionCloseSent() = 0;
virtual bool ValidateToken(absl::string_view token) = 0;
virtual bool MaybeSendAddressToken() = 0;
virtual void CreateContextForMultiPortPath(
std::unique_ptr<MultiPortPathContextObserver> context_observer) = 0;
virtual void MigrateToMultiPortPath(
std::unique_ptr<QuicPathValidationContext> context) = 0;
virtual void OnServerPreferredAddressAvailable(
const QuicSocketAddress& server_preferred_address) = 0;
virtual void MaybeBundleOpportunistically() = 0;
virtual QuicByteCount GetFlowControlSendWindowSize(QuicStreamId id) = 0;
};
class QUICHE_EXPORT QuicConnectionDebugVisitor
: public QuicSentPacketManager::DebugDelegate {
public:
~QuicConnectionDebugVisitor() override {}
virtual void OnPacketSent(QuicPacketNumber ,
QuicPacketLength ,
bool ,
TransmissionType ,
EncryptionLevel ,
const QuicFrames& ,
const QuicFrames& ,
QuicTime , uint32_t ) {}
virtual void OnCoalescedPacketSent(
const QuicCoalescedPacket& , size_t ) {}
virtual void OnPingSent() {}
virtual void OnPacketReceived(const QuicSocketAddress& ,
const QuicSocketAddress& ,
const QuicEncryptedPacket& ) {}
virtual void OnUnauthenticatedHeader(const QuicPacketHeader& ) {}
virtual void OnIncorrectConnectionId(QuicConnectionId ) {}
virtual void OnUndecryptablePacket(EncryptionLevel ,
bool ) {}
virtual void OnAttemptingToProcessUndecryptablePacket(
EncryptionLevel ) {}
virtual void OnDuplicatePacket(QuicPacketNumber ) {}
virtual void OnProtocolVersionMismatch(ParsedQuicVersion ) {}
virtual void OnPacketHeader(const QuicPacketHeader& ,
QuicTime ,
EncryptionLevel ) {}
virtual void OnStreamFrame(const QuicStreamFrame& ) {}
virtual void OnCryptoFrame(const QuicCryptoFrame& ) {}
virtual void OnPaddingFrame(const QuicPaddingFrame& ) {}
virtual void OnPingFrame(const QuicPingFrame& ,
QuicTime::Delta ) {}
virtual void OnGoAwayFrame(const QuicGoAwayFrame& ) {}
virtual void OnRstStreamFrame(const QuicRstStreamFrame& ) {}
virtual void OnConnectionCloseFrame(
const QuicConnectionCloseFrame& ) {}
virtual void OnWindowUpdateFrame(const QuicWindowUpdateFrame& ,
const QuicTime& ) {}
virtual void OnBlockedFrame(const QuicBlockedFrame& ) {}
virtual void OnNewConnectionIdFrame(
const QuicNewConnectionIdFrame& ) {}
virtual void OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& ) {}
virtual void OnNewTokenFrame(const QuicNewTokenFrame& ) {}
virtual void OnMessageFrame(const QuicMessageFrame& ) {}
virtual void OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& ) {}
virtual void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& ) {}
virtual void OnConnectionClosed(const QuicConnectionCloseFrame& ,
ConnectionCloseSource ) {}
virtual void OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& ) {}
virtual void OnSendConnectionState(
const CachedNetworkParameters& ) {}
virtual void OnReceiveConnectionState(
const CachedNetworkParameters& ) {}
virtual void OnSetFromConfig(const QuicConfig& ) {}
virtual void OnRttChanged(QuicTime::Delta ) const {}
virtual void OnStopSendingFrame(const QuicStopSendingFrame& ) {}
virtual void OnPathChallengeFrame(const QuicPathChallengeFrame& ) {}
virtual void OnPathResponseFrame(const QuicPathResponseFrame& ) {}
virtual void OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& ) {
}
virtual void OnMaxStreamsFrame(const QuicMaxStreamsFrame& ) {}
virtual void OnAckFrequencyFrame(const QuicAckFrequencyFrame& ) {}
virtual void OnResetStreamAtFrame(const QuicResetStreamAtFrame& ) {}
virtual void OnNPacketNumbersSkipped(QuicPacketCount ,
QuicTime ) {}
virtual void OnPacketDiscarded(const SerializedPacket& ) {}
virtual void OnTransportParametersSent(
const TransportParameters& ) {}
virtual void OnTransportParametersReceived(
const TransportParameters& ) {}
virtual void OnTransportParametersResumed(
const TransportParameters& ) {}
virtual void OnZeroRttRejected(int ) {}
virtual void OnZeroRttPacketAcked() {}
virtual void OnPeerAddressChange(AddressChangeType ,
QuicTime::Delta ) {}
virtual void OnPeerMigrationValidated(QuicTime::Delta ) {}
virtual void OnEncryptedClientHelloSent(absl::string_view ) {}
virtual void OnEncryptedClientHelloReceived(
absl::string_view ) {}
};
class QUICHE_EXPORT QuicConnectionHelperInterface {
public:
virtual ~QuicConnectionHelperInterface() {}
virtual const QuicClock* GetClock() const = 0;
virtual QuicRandom* GetRandomGenerator() = 0;
virtual quiche::QuicheBufferAllocator* GetStreamSendBufferAllocator() = 0;
};
class QUICHE_EXPORT QuicConnection
: public QuicFramerVisitorInterface,
public QuicBlockedWriterInterface,
public QuicPacketCreator::DelegateInterface,
public QuicSentPacketManager::NetworkChangeVisitor,
public QuicNetworkBlackholeDetector::Delegate,
public QuicIdleNetworkDetector::Delegate,
public QuicPathValidator::SendDelegate,
public QuicConnectionIdManagerVisitorInterface,
public QuicPingManager::Delegate,
public QuicConnectionAlarmsDelegate {
public:
QuicConnection(QuicConnectionId server_connection_id,
QuicSocketAddress initial_self_address,
QuicSocketAddress initial_peer_address,
QuicConnectionHelperInterface* helper,
QuicAlarmFactory* alarm_factory, QuicPacketWriter* writer,
bool owns_writer, Perspective perspective,
const ParsedQuicVersionVector& supported_versions,
ConnectionIdGeneratorInterface& generator);
QuicConnection(const QuicConnection&) = delete;
QuicConnection& operator=(const QuicConnection&) = delete;
~QuicConnection() override;
struct MultiPortStats {
RttStats rtt_stats;
RttStats rtt_stats_when_default_path_degrading;
size_t num_multi_port_probe_failures_when_path_not_degrading = 0;
size_t num_multi_port_probe_failures_when_path_degrading = 0;
size_t num_multi_port_paths_created = 0;
size_t num_client_probing_attempts = 0;
size_t num_successful_probes = 0;
};
void SetFromConfig(const QuicConfig& config);
void ApplyConnectionOptions(const QuicTagVector& connection_options);
virtual void OnSendConnectionState(
const CachedNetworkParameters& cached_network_params);
virtual void OnReceiveConnectionState(
const CachedNetworkParameters& cached_network_params);
virtual void ResumeConnectionState(
const CachedNetworkParameters& cached_network_params,
bool max_bandwidth_resumption);
virtual void SetMaxPacingRate(QuicBandwidth max_pacing_rate);
void AdjustNetworkParameters(
const SendAlgorithmInterface::NetworkParams& params);
void AdjustNetworkParameters(QuicBandwidth bandwidth, QuicTime::Delta rtt,
bool allow_cwnd_to_decrease);
void SetLossDetectionTuner(
std::unique_ptr<LossDetectionTunerInterface> tuner);
void OnConfigNegotiated();
virtual QuicBandwidth MaxPacingRate() const;
virtual size_t SendCryptoData(EncryptionLevel level, size_t write_length,
QuicStreamOffset offset);
virtual QuicConsumedData SendStreamData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset,
StreamSendingState state);
virtual bool SendControlFrame(const QuicFrame& frame);
virtual void OnStreamReset(QuicStreamId id, QuicRstStreamErrorCode error);
virtual void CloseConnection(
QuicErrorCode error, const std::string& details,
ConnectionCloseBehavior connection_close_behavior);
virtual void CloseConnection(
QuicErrorCode error, QuicIetfTransportErrorCodes ietf_error,
const std::string& details,
ConnectionCloseBehavior connection_close_behavior);
QuicConnectionStats& mutable_stats() { return stats_; }
const QuicConnectionStats& GetStats();
virtual void ProcessUdpPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet);
void OnBlockedWriterCanWrite() override;
bool IsWriterBlocked() const override {
return writer_ != nullptr && writer_->IsWriteBlocked();
}
virtual void OnCanWrite();
void OnWriteError(int error_code);
bool IsMsgTooBig(const QuicPacketWriter* writer, const WriteResult& result);
void OnSendAlarm() override;
void WriteIfNotBlocked();
void SetQuicPacketWriter(QuicPacketWriter* writer, bool owns_writer) {
QUICHE_DCHECK(writer != nullptr);
if (writer_ != nullptr && owns_writer_) {
delete writer_;
}
writer_ = writer;
owns_writer_ = owns_writer;
}
void SetSelfAddress(QuicSocketAddress address) {
default_path_.self_address = address;
}
QuicTransportVersion transport_version() const {
return framer_.transport_version();
}
ParsedQuicVersion version() const { return framer_.version(); }
const ParsedQuicVersionVector& supported_versions() const {
return framer_.supported_versions();
}
void SetVersionNegotiated() { version_negotiated_ = true; }
void OnError(QuicFramer* framer) override;
bool OnProtocolVersionMismatch(ParsedQuicVersion received_version) override;
void OnPacket() override;
void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& packet) override;
void OnRetryPacket(QuicConnectionId original_connection_id,
QuicConnectionId new_connection_id,
absl::string_view retry_token,
absl::string_view retry_integrity_tag,
absl::string_view retry_without_tag) override;
bool OnUnauthenticatedPublicHeader(const QuicPacketHeader& header) override;
bool OnUnauthenticatedHeader(const QuicPacketHeader& header) override;
void OnDecryptedPacket(size_t length, EncryptionLevel level) override;
bool OnPacketHeader(const QuicPacketHeader& header) override;
void OnCoalescedPacket(const QuicEncryptedPacket& packet) override;
void OnUndecryptablePacket(const QuicEncryptedPacket& packet,
EncryptionLevel decryption_level,
bool has_decryption_key) override;
bool OnStreamFrame(const QuicStreamFrame& frame) override;
bool OnCryptoFrame(const QuicCryptoFrame& frame) override;
bool OnAckFrameStart(QuicPacketNumber largest_acked,
QuicTime::Delta ack_delay_time) override;
bool OnAckRange(QuicPacketNumber start, QuicPacketNumber end) override;
bool OnAckTimestamp(QuicPacketNumber packet_number,
QuicTime timestamp) override;
bool OnAckFrameEnd(QuicPacketNumber start,
const std::optional<QuicEcnCounts>& ecn_counts) override;
bool OnStopWaitingFrame(const QuicStopWaitingFrame& frame) override;
bool OnPaddingFrame(const QuicPaddingFrame& frame) override;
bool OnPingFrame(const QuicPingFrame& frame) override;
bool OnRstStreamFrame(const QuicRstStreamFrame& frame) override;
bool OnConnectionCloseFrame(const QuicConnectionCloseFrame& frame) override;
bool OnStopSendingFrame(const QuicStopSendingFrame& frame) override;
bool OnPathChallengeFrame(const QuicPathChallengeFrame& frame) override;
bool OnPathResponseFrame(const QuicPathResponseFrame& frame) override;
bool OnGoAwayFrame(const QuicGoAwayFrame& frame) override;
bool OnMaxStreamsFrame(const QuicMaxStreamsFrame& frame) override;
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame) override;
bool OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame) override;
bool OnBlockedFrame(const QuicBlockedFrame& frame) override;
bool OnNewConnectionIdFrame(const QuicNewConnectionIdFrame& frame) override;
bool OnRetireConnectionIdFrame(
const QuicRetireConnectionIdFrame& frame) override;
bool OnNewTokenFrame(const QuicNewTokenFrame& frame) override;
bool OnMessageFrame(const QuicMessageFrame& frame) override;
bool OnHandshakeDoneFrame(const QuicHandshakeDoneFrame& frame) override;
bool OnAckFrequencyFrame(const QuicAckFrequencyFrame& frame) override;
bool OnResetStreamAtFrame(const QuicResetStreamAtFrame& frame) override;
void OnPacketComplete() override;
bool IsValidStatelessResetToken(
const StatelessResetToken& token) const override;
void OnAuthenticatedIetfStatelessResetPacket(
const QuicIetfStatelessResetPacket& packet) override;
void OnKeyUpdate(KeyUpdateReason reason) override;
void OnDecryptedFirstPacketInKeyPhase() override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneR | #include "quiche/quic/core/quic_connection.h"
#include <errno.h>
#include <algorithm>
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_join.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/congestion_control/loss_detection_interface.h"
#include "quiche/quic/core/congestion_control/send_algorithm_interface.h"
#include "quiche/quic/core/crypto/null_decrypter.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/frames/quic_connection_close_frame.h"
#include "quiche/quic/core/frames/quic_new_connection_id_frame.h"
#include "quiche/quic/core/frames/quic_path_response_frame.h"
#include "quiche/quic/core/frames/quic_rst_stream_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_path_validator.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_clock.h"
#include "quiche/quic/test_tools/mock_connection_id_generator.h"
#include "quiche/quic/test_tools/mock_random.h"
#include "quiche/quic/test_tools/quic_coalesced_packet_peer.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_framer_peer.h"
#include "quiche/quic/test_tools/quic_packet_creator_peer.h"
#include "quiche/quic/test_tools/quic_path_validator_peer.h"
#include "quiche/quic/test_tools/quic_sent_packet_manager_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_data_producer.h"
#include "quiche/quic/test_tools/simple_session_notifier.h"
#include "quiche/common/simple_buffer_allocator.h"
using testing::_;
using testing::AnyNumber;
using testing::AtLeast;
using testing::DoAll;
using testing::ElementsAre;
using testing::Ge;
using testing::IgnoreResult;
using testing::InSequence;
using testing::Invoke;
using testing::InvokeWithoutArgs;
using testing::Lt;
using testing::Ref;
using testing::Return;
using testing::SaveArg;
using testing::SetArgPointee;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
const char data1[] = "foo data";
const char data2[] = "bar data";
const bool kHasStopWaiting = true;
const int kDefaultRetransmissionTimeMs = 500;
DiversificationNonce kTestDiversificationNonce = {
'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a',
'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b',
'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b',
};
const StatelessResetToken kTestStatelessResetToken{
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f};
const QuicSocketAddress kPeerAddress =
QuicSocketAddress(QuicIpAddress::Loopback6(),
12345);
const QuicSocketAddress kSelfAddress =
QuicSocketAddress(QuicIpAddress::Loopback6(),
443);
const QuicSocketAddress kServerPreferredAddress = QuicSocketAddress(
[]() {
QuicIpAddress address;
address.FromString("2604:31c0::");
return address;
}(),
443);
QuicStreamId GetNthClientInitiatedStreamId(int n,
QuicTransportVersion version) {
return QuicUtils::GetFirstBidirectionalStreamId(version,
Perspective::IS_CLIENT) +
n * 2;
}
QuicLongHeaderType EncryptionlevelToLongHeaderType(EncryptionLevel level) {
switch (level) {
case ENCRYPTION_INITIAL:
return INITIAL;
case ENCRYPTION_HANDSHAKE:
return HANDSHAKE;
case ENCRYPTION_ZERO_RTT:
return ZERO_RTT_PROTECTED;
case ENCRYPTION_FORWARD_SECURE:
QUICHE_DCHECK(false);
return INVALID_PACKET_TYPE;
default:
QUICHE_DCHECK(false);
return INVALID_PACKET_TYPE;
}
}
class TaggingEncrypterWithConfidentialityLimit : public TaggingEncrypter {
public:
TaggingEncrypterWithConfidentialityLimit(
uint8_t tag, QuicPacketCount confidentiality_limit)
: TaggingEncrypter(tag), confidentiality_limit_(confidentiality_limit) {}
QuicPacketCount GetConfidentialityLimit() const override {
return confidentiality_limit_;
}
private:
QuicPacketCount confidentiality_limit_;
};
class StrictTaggingDecrypterWithIntegrityLimit : public StrictTaggingDecrypter {
public:
StrictTaggingDecrypterWithIntegrityLimit(uint8_t tag,
QuicPacketCount integrity_limit)
: StrictTaggingDecrypter(tag), integrity_limit_(integrity_limit) {}
QuicPacketCount GetIntegrityLimit() const override {
return integrity_limit_;
}
private:
QuicPacketCount integrity_limit_;
};
class TestConnectionHelper : public QuicConnectionHelperInterface {
public:
TestConnectionHelper(MockClock* clock, MockRandom* random_generator)
: clock_(clock), random_generator_(random_generator) {
clock_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
}
TestConnectionHelper(const TestConnectionHelper&) = delete;
TestConnectionHelper& operator=(const TestConnectionHelper&) = delete;
const QuicClock* GetClock() const override { return clock_; }
QuicRandom* GetRandomGenerator() override { return random_generator_; }
quiche::QuicheBufferAllocator* GetStreamSendBufferAllocator() override {
return &buffer_allocator_;
}
private:
MockClock* clock_;
MockRandom* random_generator_;
quiche::SimpleBufferAllocator buffer_allocator_;
};
class TestConnection : public QuicConnection {
public:
TestConnection(QuicConnectionId connection_id,
QuicSocketAddress initial_self_address,
QuicSocketAddress initial_peer_address,
TestConnectionHelper* helper, TestAlarmFactory* alarm_factory,
TestPacketWriter* writer, Perspective perspective,
ParsedQuicVersion version,
ConnectionIdGeneratorInterface& generator)
: QuicConnection(connection_id, initial_self_address,
initial_peer_address, helper, alarm_factory, writer,
false, perspective,
SupportedVersions(version), generator),
notifier_(nullptr) {
writer->set_perspective(perspective);
SetEncrypter(ENCRYPTION_FORWARD_SECURE,
std::make_unique<TaggingEncrypter>(ENCRYPTION_FORWARD_SECURE));
SetDataProducer(&producer_);
ON_CALL(*this, OnSerializedPacket(_))
.WillByDefault([this](SerializedPacket packet) {
QuicConnection::OnSerializedPacket(std::move(packet));
});
}
TestConnection(const TestConnection&) = delete;
TestConnection& operator=(const TestConnection&) = delete;
MOCK_METHOD(void, OnSerializedPacket, (SerializedPacket packet), (override));
void OnEffectivePeerMigrationValidated(bool is_migration_linkable) override {
QuicConnection::OnEffectivePeerMigrationValidated(is_migration_linkable);
if (is_migration_linkable) {
num_linkable_client_migration_++;
} else {
num_unlinkable_client_migration_++;
}
}
uint32_t num_unlinkable_client_migration() const {
return num_unlinkable_client_migration_;
}
uint32_t num_linkable_client_migration() const {
return num_linkable_client_migration_;
}
void SetSendAlgorithm(SendAlgorithmInterface* send_algorithm) {
QuicConnectionPeer::SetSendAlgorithm(this, send_algorithm);
}
void SetLossAlgorithm(LossDetectionInterface* loss_algorithm) {
QuicConnectionPeer::SetLossAlgorithm(this, loss_algorithm);
}
void SendPacket(EncryptionLevel , uint64_t packet_number,
std::unique_ptr<QuicPacket> packet,
HasRetransmittableData retransmittable, bool has_ack,
bool has_pending_frames) {
ScopedPacketFlusher flusher(this);
char buffer[kMaxOutgoingPacketSize];
size_t encrypted_length =
QuicConnectionPeer::GetFramer(this)->EncryptPayload(
ENCRYPTION_INITIAL, QuicPacketNumber(packet_number), *packet,
buffer, kMaxOutgoingPacketSize);
SerializedPacket serialized_packet(
QuicPacketNumber(packet_number), PACKET_4BYTE_PACKET_NUMBER, buffer,
encrypted_length, has_ack, has_pending_frames);
serialized_packet.peer_address = kPeerAddress;
if (retransmittable == HAS_RETRANSMITTABLE_DATA) {
serialized_packet.retransmittable_frames.push_back(
QuicFrame(QuicPingFrame()));
}
OnSerializedPacket(std::move(serialized_packet));
}
QuicConsumedData SaveAndSendStreamData(QuicStreamId id,
absl::string_view data,
QuicStreamOffset offset,
StreamSendingState state) {
return SaveAndSendStreamData(id, data, offset, state, NOT_RETRANSMISSION);
}
QuicConsumedData SaveAndSendStreamData(QuicStreamId id,
absl::string_view data,
QuicStreamOffset offset,
StreamSendingState state,
TransmissionType transmission_type) {
ScopedPacketFlusher flusher(this);
producer_.SaveStreamData(id, data);
if (notifier_ != nullptr) {
return notifier_->WriteOrBufferData(id, data.length(), state,
transmission_type);
}
return QuicConnection::SendStreamData(id, data.length(), offset, state);
}
QuicConsumedData SendStreamDataWithString(QuicStreamId id,
absl::string_view data,
QuicStreamOffset offset,
StreamSendingState state) {
ScopedPacketFlusher flusher(this);
if (!QuicUtils::IsCryptoStreamId(transport_version(), id) &&
this->encryption_level() == ENCRYPTION_INITIAL) {
this->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
if (perspective() == Perspective::IS_CLIENT && !IsHandshakeComplete()) {
OnHandshakeComplete();
}
if (version().SupportsAntiAmplificationLimit()) {
QuicConnectionPeer::SetAddressValidated(this);
}
}
return SaveAndSendStreamData(id, data, offset, state);
}
QuicConsumedData SendApplicationDataAtLevel(EncryptionLevel encryption_level,
QuicStreamId id,
absl::string_view data,
QuicStreamOffset offset,
StreamSendingState state) {
ScopedPacketFlusher flusher(this);
QUICHE_DCHECK(encryption_level >= ENCRYPTION_ZERO_RTT);
SetEncrypter(encryption_level,
std::make_unique<TaggingEncrypter>(encryption_level));
SetDefaultEncryptionLevel(encryption_level);
return SaveAndSendStreamData(id, data, offset, state);
}
QuicConsumedData SendStreamData3() {
return SendStreamDataWithString(
GetNthClientInitiatedStreamId(1, transport_version()), "food", 0,
NO_FIN);
}
QuicConsumedData SendStreamData5() {
return SendStreamDataWithString(
GetNthClientInitiatedStreamId(2, transport_version()), "food2", 0,
NO_FIN);
}
QuicConsumedData EnsureWritableAndSendStreamData5() {
EXPECT_TRUE(CanWrite(HAS_RETRANSMITTABLE_DATA));
return SendStreamData5();
}
QuicConsumedData SendCryptoStreamData() {
QuicStreamOffset offset = 0;
absl::string_view data("chlo");
if (!QuicVersionUsesCryptoFrames(transport_version())) {
return SendCryptoDataWithString(data, offset);
}
producer_.SaveCryptoData(ENCRYPTION_INITIAL, offset, data);
size_t bytes_written;
if (notifier_) {
bytes_written =
notifier_->WriteCryptoData(ENCRYPTION_INITIAL, data.length(), offset);
} else {
bytes_written = QuicConnection::SendCryptoData(ENCRYPTION_INITIAL,
data.length(), offset);
}
return QuicConsumedData(bytes_written, false);
}
QuicConsumedData SendCryptoDataWithString(absl::string_view data,
QuicStreamOffset offset) {
return SendCryptoDataWithString(data, offset, ENCRYPTION_INITIAL);
}
QuicConsumedData SendCryptoDataWithString(absl::string_view data,
QuicStreamOffset offset,
EncryptionLevel encryption_level) {
if (!QuicVersionUsesCryptoFrames(transport_version())) {
return SendStreamDataWithString(
QuicUtils::GetCryptoStreamId(transport_version()), data, offset,
NO_FIN);
}
producer_.SaveCryptoData(encryption_level, offset, data);
size_t bytes_written;
if (notifier_) {
bytes_written =
notifier_->WriteCryptoData(encryption_level, data.length(), offset);
} else {
bytes_written = QuicConnection::SendCryptoData(encryption_level,
data.length(), offset);
}
return QuicConsumedData(bytes_written, false);
}
void set_version(ParsedQuicVersion version) {
QuicConnectionPeer::GetFramer(this)->set_version(version);
}
void SetSupportedVersions(const ParsedQuicVersionVector& versions) {
QuicConnectionPeer::GetFramer(this)->SetSupportedVersions(versions);
writer()->SetSupportedVersions(versions);
}
void set_perspective(Perspective perspective) {
writer()->set_perspective(perspective);
QuicConnectionPeer::ResetPeerIssuedConnectionIdManager(this);
QuicConnectionPeer::SetPerspective(this, perspective);
QuicSentPacketManagerPeer::SetPerspective(
QuicConnectionPeer::GetSentPacketManager(this), perspective);
QuicConnectionPeer::GetFramer(this)->SetInitialObfuscators(
TestConnectionId());
}
void EnablePathMtuDiscovery(MockSendAlgorithm* send_algorithm) {
ASSERT_EQ(Perspective::IS_SERVER, perspective());
if (GetQuicReloadableFlag(quic_enable_mtu_discovery_at_server)) {
OnConfigNegotiated();
} else {
QuicConfig config;
QuicTagVector connection_options;
connection_options.push_back(kMTUH);
config.SetInitialReceivedConnectionOptions(connection_options);
EXPECT_CALL(*send_algorithm, SetFromConfig(_, _));
SetFromConfig(config);
}
EXPECT_CALL(*send_algorithm, PacingRate(_))
.WillRepeatedly(Return(QuicBandwidth::Infinite()));
}
TestAlarmFactory::TestAlarm* GetAckAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetAckAlarm(this));
}
TestAlarmFactory::TestAlarm* GetPingAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetPingAlarm(this));
}
TestAlarmFactory::TestAlarm* GetRetransmissionAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetRetransmissionAlarm(this));
}
TestAlarmFactory::TestAlarm* GetSendAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetSendAlarm(this));
}
TestAlarmFactory::TestAlarm* GetTimeoutAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetIdleNetworkDetectorAlarm(this));
}
TestAlarmFactory::TestAlarm* GetMtuDiscoveryAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetMtuDiscoveryAlarm(this));
}
TestAlarmFactory::TestAlarm* GetProcessUndecryptablePacketsAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetProcessUndecryptablePacketsAlarm(this));
}
TestAlarmFactory::TestAlarm* GetDiscardPreviousOneRttKeysAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetDiscardPreviousOneRttKeysAlarm(this));
}
TestAlarmFactory::TestAlarm* GetDiscardZeroRttDecryptionKeysAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetDiscardZeroRttDecryptionKeysAlarm(this));
}
TestAlarmFactory::TestAlarm* GetBlackholeDetectorAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetBlackholeDetectorAlarm(this));
}
TestAlarmFactory::TestAlarm* GetRetirePeerIssuedConnectionIdAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
QuicConnectionPeer::GetRetirePeerIssuedConnectionIdAlarm(this));
}
TestAlarmFactory::TestAlarm* GetRetireSelfIssuedConnectionIdAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
QuicConnectionPeer::GetRetireSelfIssuedConnectionIdAlarm(this));
}
TestAlarmFactory::TestAlarm* GetMultiPortProbingAlarm() {
return reinterpret_cast<TestAlarmFactory::TestAlarm*>(
&QuicConnectionPeer::GetMultiPortProbingAlarm(this));
}
void PathDegradingTimeout() {
QUICHE_DCHECK(PathDegradingDetectionInProgress());
GetBlackholeDetectorAlarm()->Fire();
}
bool PathDegradingDetectionInProgress() {
return QuicConnectionPeer::GetPathDegradingDeadline(this).IsInitialized();
}
bool BlackholeDetectionInProgress() {
return QuicConnectionPeer::GetBlackholeDetectionDeadline(this)
.IsInitialized();
}
bool PathMtuReductionDetectionInProgress() {
return QuicConnectionPeer::GetPathMtuReductionDetectionDeadline(this)
.IsInitialized();
}
QuicByteCount GetBytesInFlight() {
return QuicConnectionPeer::GetSentPacketManager(this)->GetBytesInFlight();
}
void set_notifier(SimpleSessionNotifier* notifier) { notifier_ = notifier; }
void ReturnEffectivePeerAddressForNextPacket(const QuicSocketAddress& addr) {
next_effective_peer_addr_ = std::make_unique<QuicSocketAddress>(addr);
}
void SendOrQueuePacket(SerializedPacket packet) override {
QuicConnection::SendOrQueuePacket(std::move(packet));
self_address_on_default_path_while_sending_packet_ = self_address();
}
QuicSocketAddress self_address_on_default_path_while_sending_packet() {
return self_address_on_default_path_while_sending_packet_;
}
SimpleDataProducer* producer() { return &producer_; }
using QuicConnection::active_effective_peer_migration_type;
using QuicConnection::IsCurrentPacketConnectivityProbing;
using QuicConnection::SelectMutualVersion;
using QuicConnection::set_defer_send_in_response_to_packets;
protected:
QuicSocketAddress GetEffectivePeerAddressFromCurrentPacket() const override {
if (next_effective_peer_addr_) {
return *std::move(next_effective_peer_addr_);
}
return QuicConnection::GetEffectivePeerAddressFromCurrentPacket();
}
private:
TestPacketWriter* writer() {
return static_cast<TestPacketWriter*>(QuicConnection::writer());
}
SimpleDataProducer producer_;
SimpleSessionNotifier* notifier_;
std::unique_ptr<QuicSocketAddress> next_effective_peer_addr_;
QuicSocketAddress self_address_on_default_path_while_sending_packet_;
uint32_t num_unlinkable_client_migration_ = 0;
uint32_t num_linkable_client_migration_ = 0;
};
enum class AckResponse { kDefer, kImmediate };
struct TestParams {
TestParams(ParsedQuicVersion version, AckResponse ack_response)
: version(version), ack_response(ack_response) {}
ParsedQuicVersion version;
AckResponse ack_response;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
ParsedQuicVersionToString(p.version), "_",
(p.ack_response == AckResponse::kDefer ? "defer" : "immediate"));
}
std::vector<TestParams> GetTestParams() {
QuicFlagSaver flags;
std::vector<TestParams> params;
ParsedQuicVersionVector all_supported_versions = AllSupportedVersions();
for (size_t i = 0; i < all_supported_versions.size(); ++i) {
for (AckResponse ack_response :
{AckResponse::kDefer, AckResponse::kImmediate}) {
params.push_back(TestParams(all_supported_versions[i], ack_response));
}
}
return params;
}
class QuicConnectionTest : public QuicTestWithParam<TestParams> {
public:
void SaveConnectionCloseFrame(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource ) {
saved_connection_close_frame_ = frame;
connection_close_frame_count_++;
}
protected:
QuicConnectionTest()
: connection_id_(TestConnectionId()),
framer_(SupportedVersions(version()), QuicTime::Zero(),
Perspective::IS_CLIENT, connection_id_.length()),
send_algorithm_(new StrictMock<MockSendAlgorithm>),
loss_algorithm_(new MockLossAlgorithm()),
helper_(new TestConnectionHelper(&clock_, &random_generator_)),
alarm_factory_(new TestAlarmFactory()),
peer_framer_(SupportedVersions(version()), QuicTime::Zero(),
Perspective::IS_SERVER, connection_id_.length()),
peer_creator_(connection_id_, &peer_framer_,
nullptr),
writer_(
new TestPacketWriter(version(), &clock_, Perspective::IS_CLIENT)),
connection_(connection_id_, kSelfAddress, kPeerAddress, helper_.get(),
alarm_factory_.get(), writer_.get(), Perspective::IS_CLIENT,
version(), connection_id_generator_),
creator_(QuicConnectionPeer::GetPacketCreator(&connection_)),
manager_(QuicConnectionPeer::GetSentPacketManager(&connection_)),
frame1_(0, false, 0, absl::string_view(data1)),
frame2_(0, false, 3, absl::string_view(data2)),
crypto_frame_(ENCRYPTION_INITIAL, 0, absl::string_view(data1)),
packet_number_length_(PACKET_4BYTE_PACKET_NUMBER),
connection_id_included_(CONNECTION_ID_PRESENT),
notifier_(&connection_),
connection_close_frame_count_(0) {
QUIC_DVLOG(2) << "QuicConnectionTest(" << PrintToString(GetParam()) << ")";
connection_.set_defer_send_in_response_to_packets(GetParam().ack_response ==
AckResponse::kDefer);
framer_.SetInitialObfuscators(TestConnectionId());
connection_.InstallInitialCrypters(TestConnectionId());
CrypterPair crypters;
CryptoUtils::CreateInitialObfuscators(Perspective::IS_SERVER, version(),
TestConnectionId(), &crypters);
peer_creator_.SetEncrypter(ENCRYPTION_INITIAL,
std::move(crypters.encrypter));
if (version().KnowsWhichDecrypterToUse()) {
peer_framer_.InstallDecrypter(ENCRYPTION_INITIAL,
std::move(crypters.decrypter));
} else {
peer_framer_.SetDecrypter(ENCRYPTION_INITIAL,
std::move(crypters.decrypter));
}
for (EncryptionLevel level :
{ENCRYPTION_ZERO_RTT, ENCRYPTION_FORWARD_SECURE}) {
peer_creator_.SetEncrypter(level,
std::make_unique<TaggingEncrypter>(level));
}
QuicFramerPeer::SetLastSerializedServerConnectionId(
QuicConnectionPeer::GetFramer(&connection_), connection_id_);
QuicFramerPeer::SetLastWrittenPacketNumberLength(
QuicConnectionPeer::GetFramer(&connection_), packet_number_length_);
QuicStreamId stream_id;
if (QuicVersionUsesCryptoFrames(version().transport_version)) {
stream_id = QuicUtils::GetFirstBidirectionalStreamId(
version().transport_version, Perspective::IS_CLIENT);
} else {
stream_id = QuicUtils::GetCryptoStreamId(version().transport_version);
}
frame1_.stream_id = stream_id;
frame2_.stream_id = stream_id;
connection_.set_visitor(&visitor_);
connection_.SetSessionNotifier(¬ifier_);
connection_.set_notifier(¬ifier_);
connection_.SetSendAlgorithm(send_algorithm_);
connection_.SetLossAlgorithm(loss_algorithm_.get());
EXPECT_CALL(*send_algorithm_, CanSend(_)).WillRepeatedly(Return(true));
EXPECT_CALL(*send_algorithm_, OnPacketSent(_, _, _, _, _))
.Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, OnPacketNeutered(_)).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, GetCongestionWindow())
.WillRepeatedly(Return(kDefaultTCPMSS));
EXPECT_CALL(*send_algorithm_, PacingRate(_))
.WillRepeatedly(Return(QuicBandwidth::Zero()));
EXPECT_CALL(*send_algorithm_, BandwidthEstimate())
.Times(AnyNumber())
.WillRepeatedly(Return(QuicBandwidth::Zero()));
EXPECT_CALL(*send_algorithm_, PopulateConnectionStats(_))
.Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, InSlowStart()).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, InRecovery()).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, GetCongestionControlType())
.Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, OnApplicationLimited(_)).Times(AnyNumber());
EXPECT_CALL(*send_algorithm_, GetCongestionControlType())
.Times(AnyNumber());
EXPECT_CALL(visitor_, WillingAndAbleToWrite())
.WillRepeatedly(
Invoke(¬ifier_, &SimpleSessionNotifier::WillingToWrite));
EXPECT_CALL(visitor_, OnPacketDecrypted(_)).Times(AnyNumber());
EXPECT_CALL(visitor_, OnCanWrite())
.WillRepeatedly(Invoke(¬ifier_, &SimpleSessionNotifier::OnCanWrite));
EXPECT_CALL(visitor_, ShouldKeepConnectionAlive())
.WillRepeatedly(Return(false));
EXPECT_CALL(visitor_, OnCongestionWindowChange(_)).Times(AnyNumber());
EXPECT_CALL(visitor_, OnPacketReceived(_, _, _)).Times(AnyNumber());
EXPECT_CALL(visitor_, OnSuccessfulVersionNegotiation(_)).Times(AnyNumber());
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(visitor_, MaybeBundleOpportunistically()).Times(AnyNumber());
EXPECT_CALL(visitor_, GetFlowControlSendWindowSize(_)).Times(AnyNumber());
}
EXPECT_CALL(visitor_, OnOneRttPacketAcknowledged())
.Times(testing::AtMost(1));
EXPECT_CALL(*loss_algorithm_, GetLossTimeout())
.WillRepeatedly(Return(QuicTime::Zero()));
EXPECT_CALL(*loss_algorithm_, DetectLosses(_, _, _, _, _, _))
.Times(AnyNumber());
EXPECT_CALL(visitor_, GetHandshakeState())
.WillRepeatedly(Return(HANDSHAKE_START));
if (connection_.version().KnowsWhichDecrypterToUse()) {
connection_.InstallDecrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<StrictTaggingDecrypter>(ENCRYPTION_FORWARD_SECURE));
} else {
connection_.SetAlternativeDecrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<StrictTaggingDecrypter>(ENCRYPTION_FORWARD_SECURE),
false);
}
peer_creator_.SetDefaultPeerAddress(kSelfAddress);
}
QuicConnectionTest(const QuicConnectionTest&) = delete;
QuicConnectionTest& operator=(const QuicConnectionTest&) = delete;
ParsedQuicVersion version() { return GetParam().version; }
void SetClientConnectionId(const QuicConnectionId& client_connection_id) {
connection_.set_client_connection_id(client_connection_id);
writer_->framer()->framer()->SetExpectedClientConnectionIdLength(
client_connection_id.length());
}
void SetDecrypter(EncryptionLevel level,
std::unique_ptr<QuicDecrypter> decrypter) {
if (connection_.version().KnowsWhichDecrypterToUse()) {
connection_.InstallDecrypter(level, std::move(decrypter));
} else {
connection_.SetAlternativeDecrypter(level, std::move(decrypter), false);
}
}
void ProcessPacket(uint64_t number) {
EXPECT_CALL(visitor_, OnStreamFrame(_)).Times(1);
ProcessDataPacket(number);
if (connection_.GetSendAlarm()->IsSet()) {
connection_.GetSendAlarm()->Fire();
}
}
void ProcessReceivedPacket(const QuicSocketAddress& self_address,
const QuicSocketAddress& peer_address,
const QuicReceivedPacket& packet) {
connection_.ProcessUdpPacket(self_address, peer_address, packet);
if (connection_.GetSendAlarm()->IsSet()) {
connection_.GetSendAlarm()->Fire();
}
}
QuicFrame MakeCryptoFrame() const {
if (QuicVersionUsesCryptoFrames(connection_.transport_version())) {
return QuicFrame(new QuicCryptoFrame(crypto_frame_));
}
return QuicFrame(QuicStreamFrame(
QuicUtils::GetCryptoStreamId(connection_.transport_version()), false,
0u, absl::string_view()));
}
void ProcessFramePacket(QuicFrame frame) {
ProcessFramePacketWithAddresses(frame, kSelfAddress, kPeerAddress,
ENCRYPTION_FORWARD_SECURE);
}
void ProcessFramePacketWithAddresses(QuicFrame frame,
QuicSocketAddress self_address,
QuicSocketAddress peer_address,
EncryptionLevel level) {
QuicFrames frames;
frames.push_back(QuicFrame(frame));
return ProcessFramesPacketWithAddresses(frames, self_address, peer_address,
level);
}
std::unique_ptr<QuicReceivedPacket> ConstructPacket(QuicFrames frames,
EncryptionLevel level,
char* buffer,
size_t buffer_len) {
QUICHE_DCHECK(peer_framer_.HasEncrypterOfEncryptionLevel(level));
peer_creator_.set_encryption_level(level);
QuicPacketCreatorPeer::SetSendVersionInPacket(
&peer_creator_,
level < ENCRYPTION_FORWARD_SECURE &&
connection_.perspective() == Perspective::IS_SERVER);
SerializedPacket serialized_packet =
QuicPacketCreatorPeer::SerializeAllFrames(&peer_creator_, frames,
buffer, buffer_len);
return std::make_unique<QuicReceivedPacket>(
serialized_packet.encrypted_buffer, serialized_packet.encrypted_length,
clock_.Now());
}
void ProcessFramesPacketWithAddresses(QuicFrames frames, |
275 | cpp | google/quiche | quic_generic_session | quiche/quic/core/quic_generic_session.cc | quiche/quic/core/quic_generic_session_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_GENERIC_CLIENT_SESSION_H_
#define QUICHE_QUIC_CORE_QUIC_GENERIC_CLIENT_SESSION_H_
#include <cstdint>
#include <memory>
#include "absl/algorithm/container.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_datagram_queue.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/web_transport_stats.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/common/quiche_callbacks.h"
#include "quiche/web_transport/web_transport.h"
namespace quic {
class QuicGenericStream;
QUICHE_EXPORT ParsedQuicVersionVector GetQuicVersionsForGenericSession();
using CreateWebTransportSessionVisitorCallback =
quiche::UnretainedCallback<std::unique_ptr<webtransport::SessionVisitor>(
webtransport::Session& session)>;
class QUICHE_EXPORT QuicGenericSessionBase : public QuicSession,
public webtransport::Session {
public:
QuicGenericSessionBase(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn,
webtransport::SessionVisitor* visitor, bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer);
~QuicGenericSessionBase();
std::vector<std::string> GetAlpnsToOffer() const override {
return std::vector<std::string>({alpn_});
}
std::vector<absl::string_view>::const_iterator SelectAlpn(
const std::vector<absl::string_view>& alpns) const override {
return absl::c_find(alpns, alpn_);
}
void OnAlpnSelected(absl::string_view alpn) override {
QUICHE_DCHECK_EQ(alpn, alpn_);
}
void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source) override;
bool ShouldKeepConnectionAlive() const override { return true; }
QuicStream* CreateIncomingStream(QuicStreamId id) override;
QuicStream* CreateIncomingStream(PendingStream* ) override {
QUIC_BUG(QuicGenericSessionBase_PendingStream)
<< "QuicGenericSessionBase::CreateIncomingStream(PendingStream) not "
"implemented";
return nullptr;
}
void OnTlsHandshakeComplete() override;
void OnMessageReceived(absl::string_view message) override;
webtransport::Stream* AcceptIncomingBidirectionalStream() override;
webtransport::Stream* AcceptIncomingUnidirectionalStream() override;
bool CanOpenNextOutgoingBidirectionalStream() override {
return QuicSession::CanOpenNextOutgoingBidirectionalStream();
}
bool CanOpenNextOutgoingUnidirectionalStream() override {
return QuicSession::CanOpenNextOutgoingUnidirectionalStream();
}
webtransport::Stream* OpenOutgoingBidirectionalStream() override;
webtransport::Stream* OpenOutgoingUnidirectionalStream() override;
webtransport::Stream* GetStreamById(webtransport::StreamId id) override;
webtransport::DatagramStatus SendOrQueueDatagram(
absl::string_view datagram) override;
void SetDatagramMaxTimeInQueue(absl::Duration max_time_in_queue) override {
datagram_queue()->SetMaxTimeInQueue(QuicTimeDelta(max_time_in_queue));
}
webtransport::DatagramStats GetDatagramStats() override {
return WebTransportDatagramStatsForQuicSession(*this);
}
webtransport::SessionStats GetSessionStats() override {
return WebTransportStatsForQuicSession(*this);
}
void NotifySessionDraining() override {}
void SetOnDraining(quiche::SingleUseCallback<void()>) override {}
void CloseSession(webtransport::SessionErrorCode error_code,
absl::string_view error_message) override {
connection()->CloseConnection(
QUIC_NO_ERROR, static_cast<QuicIetfTransportErrorCodes>(error_code),
std::string(error_message),
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
}
QuicByteCount GetMaxDatagramSize() const override {
return GetGuaranteedLargestMessagePayload();
}
private:
QuicGenericStream* CreateStream(QuicStreamId id);
void OnCanCreateNewOutgoingStream(bool unidirectional) override;
std::string alpn_;
webtransport::SessionVisitor* visitor_;
bool owns_connection_;
bool owns_visitor_;
quiche::QuicheCircularDeque<QuicStreamId> incoming_bidirectional_streams_;
quiche::QuicheCircularDeque<QuicStreamId> incoming_unidirectional_streams_;
};
class QUICHE_EXPORT QuicGenericClientSession final
: public QuicGenericSessionBase {
public:
QuicGenericClientSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string host, uint16_t port,
std::string alpn, webtransport::SessionVisitor* visitor,
bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
QuicCryptoClientConfig* crypto_config);
QuicGenericClientSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string host, uint16_t port,
std::string alpn,
CreateWebTransportSessionVisitorCallback create_visitor_callback,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
QuicCryptoClientConfig* crypto_config);
void CryptoConnect() { crypto_stream_->CryptoConnect(); }
QuicCryptoStream* GetMutableCryptoStream() override {
return crypto_stream_.get();
}
const QuicCryptoStream* GetCryptoStream() const override {
return crypto_stream_.get();
}
private:
std::unique_ptr<QuicCryptoClientStream> crypto_stream_;
};
class QUICHE_EXPORT QuicGenericServerSession final
: public QuicGenericSessionBase {
public:
QuicGenericServerSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn,
webtransport::SessionVisitor* visitor, bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache);
QuicGenericServerSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn,
CreateWebTransportSessionVisitorCallback create_visitor_callback,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache);
QuicCryptoStream* GetMutableCryptoStream() override {
return crypto_stream_.get();
}
const QuicCryptoStream* GetCryptoStream() const override {
return crypto_stream_.get();
}
private:
std::unique_ptr<QuicCryptoServerStreamBase> crypto_stream_;
};
}
#endif
#include "quiche/quic/core/quic_generic_session.h"
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/web_transport_stream_adapter.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/simple_buffer_allocator.h"
#include "quiche/web_transport/web_transport.h"
namespace quic {
namespace {
class NoOpProofHandler : public QuicCryptoClientStream::ProofHandler {
public:
void OnProofValid(const QuicCryptoClientConfig::CachedState&) override {}
void OnProofVerifyDetailsAvailable(const ProofVerifyDetails&) override {}
};
class NoOpServerCryptoHelper : public QuicCryptoServerStreamBase::Helper {
public:
bool CanAcceptClientHello(const CryptoHandshakeMessage& ,
const QuicSocketAddress& ,
const QuicSocketAddress& ,
const QuicSocketAddress& ,
std::string* ) const override {
return true;
}
};
}
ParsedQuicVersionVector GetQuicVersionsForGenericSession() {
return {ParsedQuicVersion::RFCv1()};
}
class QUICHE_EXPORT QuicGenericStream : public QuicStream {
public:
QuicGenericStream(QuicStreamId id, QuicSession* session)
: QuicStream(id, session, false,
QuicUtils::GetStreamType(
id, session->connection()->perspective(),
session->IsIncomingStream(id), session->version())),
adapter_(session, this, sequencer(), std::nullopt) {
adapter_.SetPriority(webtransport::StreamPriority{0, 0});
}
WebTransportStreamAdapter* adapter() { return &adapter_; }
void OnDataAvailable() override { adapter_.OnDataAvailable(); }
void OnCanWriteNewData() override { adapter_.OnCanWriteNewData(); }
private:
WebTransportStreamAdapter adapter_;
};
QuicGenericSessionBase::QuicGenericSessionBase(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn, WebTransportVisitor* visitor,
bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer)
: QuicSession(connection, owner, config, GetQuicVersionsForGenericSession(),
0,
std::move(datagram_observer),
QuicPriorityType::kWebTransport),
alpn_(std::move(alpn)),
visitor_(visitor),
owns_connection_(owns_connection),
owns_visitor_(owns_visitor) {}
QuicGenericSessionBase::~QuicGenericSessionBase() {
if (owns_connection_) {
DeleteConnection();
}
if (owns_visitor_) {
delete visitor_;
visitor_ = nullptr;
}
}
QuicStream* QuicGenericSessionBase::CreateIncomingStream(QuicStreamId id) {
QUIC_DVLOG(1) << "Creating incoming QuicGenricStream " << id;
QuicGenericStream* stream = CreateStream(id);
if (stream->type() == BIDIRECTIONAL) {
incoming_bidirectional_streams_.push_back(id);
visitor_->OnIncomingBidirectionalStreamAvailable();
} else {
incoming_unidirectional_streams_.push_back(id);
visitor_->OnIncomingUnidirectionalStreamAvailable();
}
return stream;
}
void QuicGenericSessionBase::OnTlsHandshakeComplete() {
QuicSession::OnTlsHandshakeComplete();
visitor_->OnSessionReady();
}
webtransport::Stream*
QuicGenericSessionBase::AcceptIncomingBidirectionalStream() {
while (!incoming_bidirectional_streams_.empty()) {
webtransport::Stream* stream =
GetStreamById(incoming_bidirectional_streams_.front());
incoming_bidirectional_streams_.pop_front();
if (stream != nullptr) {
return stream;
}
}
return nullptr;
}
webtransport::Stream*
QuicGenericSessionBase::AcceptIncomingUnidirectionalStream() {
while (!incoming_unidirectional_streams_.empty()) {
webtransport::Stream* stream =
GetStreamById(incoming_unidirectional_streams_.front());
incoming_unidirectional_streams_.pop_front();
if (stream != nullptr) {
return stream;
}
}
return nullptr;
}
webtransport::Stream*
QuicGenericSessionBase::OpenOutgoingBidirectionalStream() {
if (!CanOpenNextOutgoingBidirectionalStream()) {
QUIC_BUG(QuicGenericSessionBase_flow_control_violation_bidi)
<< "Attempted to open a stream in violation of flow control";
return nullptr;
}
return CreateStream(GetNextOutgoingBidirectionalStreamId())->adapter();
}
webtransport::Stream*
QuicGenericSessionBase::OpenOutgoingUnidirectionalStream() {
if (!CanOpenNextOutgoingUnidirectionalStream()) {
QUIC_BUG(QuicGenericSessionBase_flow_control_violation_unidi)
<< "Attempted to open a stream in violation of flow control";
return nullptr;
}
return CreateStream(GetNextOutgoingUnidirectionalStreamId())->adapter();
}
QuicGenericStream* QuicGenericSessionBase::CreateStream(QuicStreamId id) {
auto stream = std::make_unique<QuicGenericStream>(id, this);
QuicGenericStream* stream_ptr = stream.get();
ActivateStream(std::move(stream));
return stream_ptr;
}
void QuicGenericSessionBase::OnMessageReceived(absl::string_view message) {
visitor_->OnDatagramReceived(message);
}
void QuicGenericSessionBase::OnCanCreateNewOutgoingStream(bool unidirectional) {
if (unidirectional) {
visitor_->OnCanCreateNewOutgoingUnidirectionalStream();
} else {
visitor_->OnCanCreateNewOutgoingBidirectionalStream();
}
}
webtransport::Stream* QuicGenericSessionBase::GetStreamById(
webtransport::StreamId id) {
QuicStream* stream = GetActiveStream(id);
if (stream == nullptr) {
return nullptr;
}
return static_cast<QuicGenericStream*>(stream)->adapter();
}
webtransport::DatagramStatus QuicGenericSessionBase::SendOrQueueDatagram(
absl::string_view datagram) {
quiche::QuicheBuffer buffer = quiche::QuicheBuffer::Copy(
quiche::SimpleBufferAllocator::Get(), datagram);
return MessageStatusToWebTransportStatus(
datagram_queue()->SendOrQueueDatagram(
quiche::QuicheMemSlice(std::move(buffer))));
}
void QuicGenericSessionBase::OnConnectionClosed(
const QuicConnectionCloseFrame& frame, ConnectionCloseSource source) {
QuicSession::OnConnectionClosed(frame, source);
visitor_->OnSessionClosed(static_cast<webtransport::SessionErrorCode>(
frame.transport_close_frame_type),
frame.error_details);
}
QuicGenericClientSession::QuicGenericClientSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string host, uint16_t port, std::string alpn,
webtransport::SessionVisitor* visitor, bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
QuicCryptoClientConfig* crypto_config)
: QuicGenericSessionBase(connection, owns_connection, owner, config,
std::move(alpn), visitor, owns_visitor,
std::move(datagram_observer)) {
static NoOpProofHandler* handler = new NoOpProofHandler();
crypto_stream_ = std::make_unique<QuicCryptoClientStream>(
QuicServerId(std::move(host), port), this,
crypto_config->proof_verifier()->CreateDefaultContext(), crypto_config,
handler, false);
}
QuicGenericClientSession::QuicGenericClientSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string host, uint16_t port, std::string alpn,
CreateWebTransportSessionVisitorCallback create_visitor_callback,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
QuicCryptoClientConfig* crypto_config)
: QuicGenericClientSession(
connection, owns_connection, owner, config, std::move(host), port,
std::move(alpn), std::move(create_visitor_callback)(*this).release(),
true, std::move(datagram_observer), crypto_config) {}
QuicGenericServerSession::QuicGenericServerSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn,
webtransport::SessionVisitor* visitor, bool owns_visitor,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache)
: QuicGenericSessionBase(connection, owns_connection, owner, config,
std::move(alpn), visitor, owns_visitor,
std::move(datagram_observer)) {
static NoOpServerCryptoHelper* helper = new NoOpServerCryptoHelper();
crypto_stream_ = CreateCryptoServerStream(
crypto_config, compressed_certs_cache, this, helper);
}
QuicGenericServerSession::QuicGenericServerSession(
QuicConnection* connection, bool owns_connection, Visitor* owner,
const QuicConfig& config, std::string alpn,
CreateWebTransportSessionVisitorCallback create_visitor_callback,
std::unique_ptr<QuicDatagramQueue::Observer> datagram_observer,
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache)
: QuicGenericServerSession(
connection, owns_connection, owner, config, std::move(alpn),
std::move(create_visitor_callback)(*this).release(),
true, std::move(datagram_observer), crypto_config,
compressed_certs_cache) {}
} | #include "quiche/quic/core/quic_generic_session.h"
#include <cstddef>
#include <cstring>
#include <memory>
#include <optional>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_compressed_certs_cache.h"
#include "quiche/quic/core/crypto/quic_crypto_client_config.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_datagram_queue.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/web_transport_interface.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/quic_session_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simulator/simulator.h"
#include "quiche/quic/test_tools/simulator/test_harness.h"
#include "quiche/quic/test_tools/web_transport_test_tools.h"
#include "quiche/quic/tools/web_transport_test_visitors.h"
#include "quiche/common/quiche_stream.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
#include "quiche/web_transport/web_transport.h"
namespace quic::test {
namespace {
enum ServerType { kDiscardServer, kEchoServer };
using quiche::test::StatusIs;
using simulator::Simulator;
using testing::_;
using testing::Assign;
using testing::AtMost;
using testing::Eq;
class CountingDatagramObserver : public QuicDatagramQueue::Observer {
public:
CountingDatagramObserver(int& total) : total_(total) {}
void OnDatagramProcessed(std::optional<MessageStatus>) { ++total_; }
private:
int& total_;
};
class ClientEndpoint : public simulator::QuicEndpointWithConnection {
public:
ClientEndpoint(Simulator* simulator, const std::string& name,
const std::string& peer_name, const QuicConfig& config)
: QuicEndpointWithConnection(simulator, name, peer_name,
Perspective::IS_CLIENT,
GetQuicVersionsForGenericSession()),
crypto_config_(crypto_test_utils::ProofVerifierForTesting()),
session_(connection_.get(), false, nullptr, config, "test.example.com",
443, "example_alpn", &visitor_, false,
std::make_unique<CountingDatagramObserver>(
total_datagrams_processed_),
&crypto_config_) {
session_.Initialize();
session_.connection()->sent_packet_manager().SetSendAlgorithm(
CongestionControlType::kBBRv2);
EXPECT_CALL(visitor_, OnSessionReady())
.Times(AtMost(1))
.WillOnce(Assign(&session_ready_, true));
}
QuicGenericClientSession* session() { return &session_; }
MockWebTransportSessionVisitor* visitor() { return &visitor_; }
bool session_ready() const { return session_ready_; }
int total_datagrams_processed() const { return total_datagrams_processed_; }
private:
QuicCryptoClientConfig crypto_config_;
MockWebTransportSessionVisitor visitor_;
QuicGenericClientSession session_;
bool session_ready_ = false;
int total_datagrams_processed_ = 0;
};
class ServerEndpoint : public simulator::QuicEndpointWithConnection {
public:
ServerEndpoint(Simulator* simulator, const std::string& name,
const std::string& peer_name, const QuicConfig& config,
ServerType type)
: QuicEndpointWithConnection(simulator, name, peer_name,
Perspective::IS_SERVER,
GetQuicVersionsForGenericSession()),
crypto_config_(QuicCryptoServerConfig::TESTING,
QuicRandom::GetInstance(),
crypto_test_utils::ProofSourceForTesting(),
KeyExchangeSource::Default()),
compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
session_(connection_.get(), false, nullptr, config, "example_alpn",
type == kEchoServer
? static_cast<webtransport::SessionVisitor*>(
new EchoWebTransportSessionVisitor(
&session_,
false))
: static_cast<webtransport::SessionVisitor*>(
new DiscardWebTransportSessionVisitor(&session_)),
true,
nullptr, &crypto_config_,
&compressed_certs_cache_) {
session_.Initialize();
session_.connection()->sent_packet_manager().SetSendAlgorithm(
CongestionControlType::kBBRv2);
}
QuicGenericServerSession* session() { return &session_; }
private:
QuicCryptoServerConfig crypto_config_;
QuicCompressedCertsCache compressed_certs_cache_;
QuicGenericServerSession session_;
};
class QuicGenericSessionTest : public QuicTest {
public:
void CreateDefaultEndpoints(ServerType server_type) {
client_ = std::make_unique<ClientEndpoint>(
&test_harness_.simulator(), "Client", "Server", client_config_);
server_ =
std::make_unique<ServerEndpoint>(&test_harness_.simulator(), "Server",
"Client", server_config_, server_type);
test_harness_.set_client(client_.get());
test_harness_.set_server(server_.get());
}
void WireUpEndpoints() { test_harness_.WireUpEndpoints(); }
void RunHandshake() {
client_->session()->CryptoConnect();
bool result = test_harness_.RunUntilWithDefaultTimeout([this]() {
return client_->session_ready() ||
client_->session()->error() != QUIC_NO_ERROR;
});
EXPECT_TRUE(result);
}
protected:
QuicConfig client_config_ = DefaultQuicConfig();
QuicConfig server_config_ = DefaultQuicConfig();
simulator::TestHarness test_harness_;
std::unique_ptr<ClientEndpoint> client_;
std::unique_ptr<ServerEndpoint> server_;
};
TEST_F(QuicGenericSessionTest, SuccessfulHandshake) {
CreateDefaultEndpoints(kDiscardServer);
WireUpEndpoints();
RunHandshake();
EXPECT_TRUE(client_->session_ready());
}
TEST_F(QuicGenericSessionTest, SendOutgoingStreams) {
CreateDefaultEndpoints(kDiscardServer);
WireUpEndpoints();
RunHandshake();
std::vector<webtransport::Stream*> streams;
for (int i = 0; i < 10; i++) {
webtransport::Stream* stream =
client_->session()->OpenOutgoingUnidirectionalStream();
ASSERT_TRUE(stream->Write("test"));
streams.push_back(stream);
}
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout([this]() {
return QuicSessionPeer::GetNumOpenDynamicStreams(server_->session()) == 10;
}));
for (webtransport::Stream* stream : streams) {
ASSERT_TRUE(stream->SendFin());
}
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout([this]() {
return QuicSessionPeer::GetNumOpenDynamicStreams(server_->session()) == 0;
}));
}
TEST_F(QuicGenericSessionTest, EchoBidirectionalStreams) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
webtransport::Stream* stream =
client_->session()->OpenOutgoingBidirectionalStream();
EXPECT_TRUE(stream->Write("Hello!"));
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[stream]() { return stream->ReadableBytes() == strlen("Hello!"); }));
std::string received;
WebTransportStream::ReadResult result = stream->Read(&received);
EXPECT_EQ(result.bytes_read, strlen("Hello!"));
EXPECT_FALSE(result.fin);
EXPECT_EQ(received, "Hello!");
EXPECT_TRUE(stream->SendFin());
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout([this]() {
return QuicSessionPeer::GetNumOpenDynamicStreams(server_->session()) == 0;
}));
}
TEST_F(QuicGenericSessionTest, EchoUnidirectionalStreams) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
webtransport::Stream* stream1 =
client_->session()->OpenOutgoingUnidirectionalStream();
EXPECT_TRUE(stream1->Write("Stream One"));
webtransport::Stream* stream2 =
client_->session()->OpenOutgoingUnidirectionalStream();
EXPECT_TRUE(stream2->Write("Stream Two"));
EXPECT_TRUE(stream2->SendFin());
bool stream_received = false;
EXPECT_CALL(*client_->visitor(), OnIncomingUnidirectionalStreamAvailable())
.Times(2)
.WillRepeatedly(Assign(&stream_received, true));
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&stream_received]() { return stream_received; }));
webtransport::Stream* reply =
client_->session()->AcceptIncomingUnidirectionalStream();
ASSERT_TRUE(reply != nullptr);
std::string buffer;
WebTransportStream::ReadResult result = reply->Read(&buffer);
EXPECT_GT(result.bytes_read, 0u);
EXPECT_TRUE(result.fin);
EXPECT_EQ(buffer, "Stream Two");
stream_received = false;
buffer = "";
EXPECT_TRUE(stream1->SendFin());
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&stream_received]() { return stream_received; }));
reply = client_->session()->AcceptIncomingUnidirectionalStream();
ASSERT_TRUE(reply != nullptr);
result = reply->Read(&buffer);
EXPECT_GT(result.bytes_read, 0u);
EXPECT_TRUE(result.fin);
EXPECT_EQ(buffer, "Stream One");
}
TEST_F(QuicGenericSessionTest, EchoStreamsUsingPeekApi) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
webtransport::Stream* stream1 =
client_->session()->OpenOutgoingBidirectionalStream();
EXPECT_TRUE(stream1->Write("Stream One"));
webtransport::Stream* stream2 =
client_->session()->OpenOutgoingUnidirectionalStream();
EXPECT_TRUE(stream2->Write("Stream Two"));
EXPECT_TRUE(stream2->SendFin());
bool stream_received_unidi = false;
EXPECT_CALL(*client_->visitor(), OnIncomingUnidirectionalStreamAvailable())
.WillOnce(Assign(&stream_received_unidi, true));
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&]() { return stream_received_unidi; }));
webtransport::Stream* reply =
client_->session()->AcceptIncomingUnidirectionalStream();
ASSERT_TRUE(reply != nullptr);
std::string buffer;
quiche::ReadStream::PeekResult peek_result = reply->PeekNextReadableRegion();
EXPECT_EQ(peek_result.peeked_data, "Stream Two");
EXPECT_EQ(peek_result.fin_next, false);
EXPECT_EQ(peek_result.all_data_received, true);
bool fin_received =
quiche::ProcessAllReadableRegions(*reply, [&](absl::string_view chunk) {
buffer.append(chunk.data(), chunk.size());
return true;
});
EXPECT_TRUE(fin_received);
EXPECT_EQ(buffer, "Stream Two");
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&]() { return stream1->PeekNextReadableRegion().has_data(); }));
peek_result = stream1->PeekNextReadableRegion();
EXPECT_EQ(peek_result.peeked_data, "Stream One");
EXPECT_EQ(peek_result.fin_next, false);
EXPECT_EQ(peek_result.all_data_received, false);
fin_received = stream1->SkipBytes(strlen("Stream One"));
EXPECT_FALSE(fin_received);
peek_result = stream1->PeekNextReadableRegion();
EXPECT_EQ(peek_result.peeked_data, "");
EXPECT_EQ(peek_result.fin_next, false);
EXPECT_EQ(peek_result.all_data_received, false);
EXPECT_TRUE(stream1->SendFin());
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&]() { return stream1->PeekNextReadableRegion().all_data_received; }));
peek_result = stream1->PeekNextReadableRegion();
EXPECT_EQ(peek_result.peeked_data, "");
EXPECT_EQ(peek_result.fin_next, true);
EXPECT_EQ(peek_result.all_data_received, true);
webtransport::StreamId id = stream1->GetStreamId();
EXPECT_TRUE(client_->session()->GetStreamById(id) != nullptr);
fin_received = stream1->SkipBytes(0);
EXPECT_TRUE(fin_received);
EXPECT_TRUE(client_->session()->GetStreamById(id) == nullptr);
}
TEST_F(QuicGenericSessionTest, EchoDatagram) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
client_->session()->SendOrQueueDatagram("test");
bool datagram_received = false;
EXPECT_CALL(*client_->visitor(), OnDatagramReceived(Eq("test")))
.WillOnce(Assign(&datagram_received, true));
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&datagram_received]() { return datagram_received; }));
}
TEST_F(QuicGenericSessionTest, EchoALotOfDatagrams) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
client_->session()->SetDatagramMaxTimeInQueue(
(10000 * simulator::TestHarness::kRtt).ToAbsl());
for (int i = 0; i < 1000; i++) {
client_->session()->SendOrQueueDatagram(std::string(
client_->session()->GetGuaranteedLargestMessagePayload(), 'a'));
}
size_t received = 0;
EXPECT_CALL(*client_->visitor(), OnDatagramReceived(_))
.WillRepeatedly(
[&received](absl::string_view ) { received++; });
ASSERT_TRUE(test_harness_.simulator().RunUntilOrTimeout(
[this]() { return client_->total_datagrams_processed() >= 1000; },
3 * simulator::TestHarness::kServerBandwidth.TransferTime(
1000 * kMaxOutgoingPacketSize)));
test_harness_.simulator().RunFor(2 * simulator::TestHarness::kRtt);
EXPECT_GT(received, 500u);
EXPECT_LT(received, 1000u);
}
TEST_F(QuicGenericSessionTest, OutgoingStreamFlowControlBlocked) {
server_config_.SetMaxUnidirectionalStreamsToSend(4);
CreateDefaultEndpoints(kDiscardServer);
WireUpEndpoints();
RunHandshake();
webtransport::Stream* stream;
for (int i = 0; i <= 3; i++) {
ASSERT_TRUE(client_->session()->CanOpenNextOutgoingUnidirectionalStream());
stream = client_->session()->OpenOutgoingUnidirectionalStream();
ASSERT_TRUE(stream != nullptr);
ASSERT_TRUE(stream->SendFin());
}
EXPECT_FALSE(client_->session()->CanOpenNextOutgoingUnidirectionalStream());
bool can_create_new_stream = false;
EXPECT_CALL(*client_->visitor(), OnCanCreateNewOutgoingUnidirectionalStream())
.WillOnce(Assign(&can_create_new_stream, true));
ASSERT_TRUE(test_harness_.RunUntilWithDefaultTimeout(
[&can_create_new_stream]() { return can_create_new_stream; }));
EXPECT_TRUE(client_->session()->CanOpenNextOutgoingUnidirectionalStream());
}
TEST_F(QuicGenericSessionTest, ExpireDatagrams) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
client_->session()->SetDatagramMaxTimeInQueue(
(0.2 * simulator::TestHarness::kRtt).ToAbsl());
for (int i = 0; i < 1000; i++) {
client_->session()->SendOrQueueDatagram(std::string(
client_->session()->GetGuaranteedLargestMessagePayload(), 'a'));
}
size_t received = 0;
EXPECT_CALL(*client_->visitor(), OnDatagramReceived(_))
.WillRepeatedly(
[&received](absl::string_view ) { received++; });
ASSERT_TRUE(test_harness_.simulator().RunUntilOrTimeout(
[this]() { return client_->total_datagrams_processed() >= 1000; },
3 * simulator::TestHarness::kServerBandwidth.TransferTime(
1000 * kMaxOutgoingPacketSize)));
test_harness_.simulator().RunFor(2 * simulator::TestHarness::kRtt);
EXPECT_LT(received, 500);
EXPECT_EQ(received + client_->session()->GetDatagramStats().expired_outgoing,
1000);
}
TEST_F(QuicGenericSessionTest, LoseDatagrams) {
CreateDefaultEndpoints(kEchoServer);
test_harness_.WireUpEndpointsWithLoss(4);
RunHandshake();
client_->session()->SetDatagramMaxTimeInQueue(
(10000 * simulator::TestHarness::kRtt).ToAbsl());
for (int i = 0; i < 1000; i++) {
client_->session()->SendOrQueueDatagram(std::string(
client_->session()->GetGuaranteedLargestMessagePayload(), 'a'));
}
size_t received = 0;
EXPECT_CALL(*client_->visitor(), OnDatagramReceived(_))
.WillRepeatedly(
[&received](absl::string_view ) { received++; });
ASSERT_TRUE(test_harness_.simulator().RunUntilOrTimeout(
[this]() { return client_->total_datagrams_processed() >= 1000; },
4 * simulator::TestHarness::kServerBandwidth.TransferTime(
1000 * kMaxOutgoingPacketSize)));
test_harness_.simulator().RunFor(16 * simulator::TestHarness::kRtt);
QuicPacketCount client_lost =
client_->session()->GetDatagramStats().lost_outgoing;
QuicPacketCount server_lost =
server_->session()->GetDatagramStats().lost_outgoing;
EXPECT_LT(received, 800u);
EXPECT_GT(client_lost, 100u);
EXPECT_GT(server_lost, 100u);
EXPECT_EQ(received + client_lost + server_lost, 1000u);
}
TEST_F(QuicGenericSessionTest, WriteWhenBufferFull) {
CreateDefaultEndpoints(kEchoServer);
WireUpEndpoints();
RunHandshake();
const std::string buffer(64 * 1024 + 1, 'q');
webtransport::Stream* stream =
client_->session()->OpenOutgoingBidirectionalStream();
ASSERT_TRUE(stream != nullptr);
ASSERT_TRUE(stream->CanWrite());
absl::Status status = quiche::WriteIntoStream(*stream, buffer);
QUICHE_EXPECT_OK(status);
EXPECT_FALSE(stream->CanWrite());
status = quiche::WriteIntoStream(*stream, buffer);
EXPECT_THAT(status, StatusIs(absl::StatusCode::kUnavailable));
quiche::StreamWriteOptions options;
options.set_buffer_unconditionally(true);
options.set_send_fin(true);
status = quiche::WriteIntoStream(*stream, buffer, options);
QUICHE_EXPECT_OK(status);
EXPECT_FALSE(stream->CanWrite());
QuicByteCount total_received = 0;
for (;;) {
test_harness_.RunUntilWithDefaultTimeout(
[&] { return stream->PeekNextReadableRegion().has_data(); });
quiche::ReadStream::PeekResult result = stream->PeekNextReadableRegion();
total_received += result.peeked_data.size();
bool fin_consumed = stream->SkipBytes(result.peeked_data.size());
if (fin_consumed) {
break;
}
}
EXPECT_EQ(total_received, 128u * 1024u + 2);
}
}
} |
276 | cpp | google/quiche | quic_write_blocked_list | quiche/quic/core/quic_write_blocked_list.cc | quiche/quic/core/quic_write_blocked_list_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_WRITE_BLOCKED_LIST_H_
#define QUICHE_QUIC_CORE_QUIC_WRITE_BLOCKED_LIST_H_
#include <cstddef>
#include <cstdint>
#include <utility>
#include "absl/container/inlined_vector.h"
#include "quiche/http2/core/priority_write_scheduler.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/spdy/core/spdy_protocol.h"
namespace quic {
class QUICHE_EXPORT QuicWriteBlockedListInterface {
public:
virtual ~QuicWriteBlockedListInterface() = default;
virtual bool HasWriteBlockedDataStreams() const = 0;
virtual size_t NumBlockedSpecialStreams() const = 0;
virtual size_t NumBlockedStreams() const = 0;
bool HasWriteBlockedSpecialStream() const {
return NumBlockedSpecialStreams() > 0;
}
virtual bool ShouldYield(QuicStreamId id) const = 0;
virtual QuicStreamPriority GetPriorityOfStream(QuicStreamId id) const = 0;
virtual QuicStreamId PopFront() = 0;
virtual void RegisterStream(QuicStreamId stream_id, bool is_static_stream,
const QuicStreamPriority& priority) = 0;
virtual void UnregisterStream(QuicStreamId stream_id) = 0;
virtual void UpdateStreamPriority(QuicStreamId stream_id,
const QuicStreamPriority& new_priority) = 0;
virtual void UpdateBytesForStream(QuicStreamId stream_id, size_t bytes) = 0;
virtual void AddStream(QuicStreamId stream_id) = 0;
virtual bool IsStreamBlocked(QuicStreamId stream_id) const = 0;
};
class QUICHE_EXPORT QuicWriteBlockedList
: public QuicWriteBlockedListInterface {
public:
explicit QuicWriteBlockedList();
QuicWriteBlockedList(const QuicWriteBlockedList&) = delete;
QuicWriteBlockedList& operator=(const QuicWriteBlockedList&) = delete;
bool HasWriteBlockedDataStreams() const override {
return priority_write_scheduler_.HasReadyStreams();
}
size_t NumBlockedSpecialStreams() const override {
return static_stream_collection_.num_blocked();
}
size_t NumBlockedStreams() const override {
return NumBlockedSpecialStreams() +
priority_write_scheduler_.NumReadyStreams();
}
bool ShouldYield(QuicStreamId id) const override;
QuicStreamPriority GetPriorityOfStream(QuicStreamId id) const override {
return QuicStreamPriority(priority_write_scheduler_.GetStreamPriority(id));
}
QuicStreamId PopFront() override;
void RegisterStream(QuicStreamId stream_id, bool is_static_stream,
const QuicStreamPriority& priority) override;
void UnregisterStream(QuicStreamId stream_id) override;
void UpdateStreamPriority(QuicStreamId stream_id,
const QuicStreamPriority& new_priority) override;
void UpdateBytesForStream(QuicStreamId stream_id, size_t bytes) override;
void AddStream(QuicStreamId stream_id) override;
bool IsStreamBlocked(QuicStreamId stream_id) const override;
private:
struct QUICHE_EXPORT HttpStreamPriorityToInt {
int operator()(const HttpStreamPriority& priority) {
return priority.urgency;
}
};
struct QUICHE_EXPORT IntToHttpStreamPriority {
HttpStreamPriority operator()(int urgency) {
return HttpStreamPriority{urgency};
}
};
http2::PriorityWriteScheduler<QuicStreamId, HttpStreamPriority,
HttpStreamPriorityToInt,
IntToHttpStreamPriority>
priority_write_scheduler_;
QuicStreamId batch_write_stream_id_[spdy::kV3LowestPriority + 1];
size_t bytes_left_for_batch_write_[spdy::kV3LowestPriority + 1];
spdy::SpdyPriority last_priority_popped_;
class QUICHE_EXPORT StaticStreamCollection {
public:
struct QUICHE_EXPORT StreamIdBlockedPair {
QuicStreamId id;
bool is_blocked;
};
using StreamsVector = absl::InlinedVector<StreamIdBlockedPair, 2>;
StreamsVector::const_iterator begin() const { return streams_.cbegin(); }
StreamsVector::const_iterator end() const { return streams_.cend(); }
size_t num_blocked() const { return num_blocked_; }
void Register(QuicStreamId id);
bool IsRegistered(QuicStreamId id) const;
bool Unregister(QuicStreamId id);
bool SetBlocked(QuicStreamId id);
bool UnblockFirstBlocked(QuicStreamId* id);
private:
size_t num_blocked_ = 0;
StreamsVector streams_;
};
StaticStreamCollection static_stream_collection_;
const bool respect_incremental_;
const bool disable_batch_write_;
};
}
#endif
#include "quiche/quic/core/quic_write_blocked_list.h"
#include <algorithm>
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
QuicWriteBlockedList::QuicWriteBlockedList()
: last_priority_popped_(0),
respect_incremental_(
GetQuicReloadableFlag(quic_priority_respect_incremental)),
disable_batch_write_(GetQuicReloadableFlag(quic_disable_batch_write)) {
memset(batch_write_stream_id_, 0, sizeof(batch_write_stream_id_));
memset(bytes_left_for_batch_write_, 0, sizeof(bytes_left_for_batch_write_));
}
bool QuicWriteBlockedList::ShouldYield(QuicStreamId id) const {
for (const auto& stream : static_stream_collection_) {
if (stream.id == id) {
return false;
}
if (stream.is_blocked) {
return true;
}
}
return priority_write_scheduler_.ShouldYield(id);
}
QuicStreamId QuicWriteBlockedList::PopFront() {
QuicStreamId static_stream_id;
if (static_stream_collection_.UnblockFirstBlocked(&static_stream_id)) {
return static_stream_id;
}
const auto [id, priority] =
priority_write_scheduler_.PopNextReadyStreamAndPriority();
const spdy::SpdyPriority urgency = priority.urgency;
const bool incremental = priority.incremental;
last_priority_popped_ = urgency;
if (disable_batch_write_) {
QUIC_RELOADABLE_FLAG_COUNT_N(quic_disable_batch_write, 1, 3);
if (!respect_incremental_ || !incremental) {
batch_write_stream_id_[urgency] = id;
}
return id;
}
if (!priority_write_scheduler_.HasReadyStreams()) {
batch_write_stream_id_[urgency] = 0;
} else if (batch_write_stream_id_[urgency] != id) {
batch_write_stream_id_[urgency] = id;
bytes_left_for_batch_write_[urgency] = 16000;
}
return id;
}
void QuicWriteBlockedList::RegisterStream(QuicStreamId stream_id,
bool is_static_stream,
const QuicStreamPriority& priority) {
QUICHE_DCHECK(!priority_write_scheduler_.StreamRegistered(stream_id))
<< "stream " << stream_id << " already registered";
if (is_static_stream) {
static_stream_collection_.Register(stream_id);
return;
}
priority_write_scheduler_.RegisterStream(stream_id, priority.http());
}
void QuicWriteBlockedList::UnregisterStream(QuicStreamId stream_id) {
if (static_stream_collection_.Unregister(stream_id)) {
return;
}
priority_write_scheduler_.UnregisterStream(stream_id);
}
void QuicWriteBlockedList::UpdateStreamPriority(
QuicStreamId stream_id, const QuicStreamPriority& new_priority) {
QUICHE_DCHECK(!static_stream_collection_.IsRegistered(stream_id));
priority_write_scheduler_.UpdateStreamPriority(stream_id,
new_priority.http());
}
void QuicWriteBlockedList::UpdateBytesForStream(QuicStreamId stream_id,
size_t bytes) {
if (disable_batch_write_) {
QUIC_RELOADABLE_FLAG_COUNT_N(quic_disable_batch_write, 2, 3);
return;
}
if (batch_write_stream_id_[last_priority_popped_] == stream_id) {
bytes_left_for_batch_write_[last_priority_popped_] -=
std::min(bytes_left_for_batch_write_[last_priority_popped_], bytes);
}
}
void QuicWriteBlockedList::AddStream(QuicStreamId stream_id) {
if (static_stream_collection_.SetBlocked(stream_id)) {
return;
}
if (respect_incremental_) {
QUIC_RELOADABLE_FLAG_COUNT(quic_priority_respect_incremental);
if (!priority_write_scheduler_.GetStreamPriority(stream_id).incremental) {
const bool push_front =
stream_id == batch_write_stream_id_[last_priority_popped_];
priority_write_scheduler_.MarkStreamReady(stream_id, push_front);
return;
}
}
if (disable_batch_write_) {
QUIC_RELOADABLE_FLAG_COUNT_N(quic_disable_batch_write, 3, 3);
priority_write_scheduler_.MarkStreamReady(stream_id,
false);
return;
}
const bool push_front =
stream_id == batch_write_stream_id_[last_priority_popped_] &&
bytes_left_for_batch_write_[last_priority_popped_] > 0;
priority_write_scheduler_.MarkStreamReady(stream_id, push_front);
}
bool QuicWriteBlockedList::IsStreamBlocked(QuicStreamId stream_id) const {
for (const auto& stream : static_stream_collection_) {
if (stream.id == stream_id) {
return stream.is_blocked;
}
}
return priority_write_scheduler_.IsStreamReady(stream_id);
}
void QuicWriteBlockedList::StaticStreamCollection::Register(QuicStreamId id) {
QUICHE_DCHECK(!IsRegistered(id));
streams_.push_back({id, false});
}
bool QuicWriteBlockedList::StaticStreamCollection::IsRegistered(
QuicStreamId id) const {
for (const auto& stream : streams_) {
if (stream.id == id) {
return true;
}
}
return false;
}
bool QuicWriteBlockedList::StaticStreamCollection::Unregister(QuicStreamId id) {
for (auto it = streams_.begin(); it != streams_.end(); ++it) {
if (it->id == id) {
if (it->is_blocked) {
--num_blocked_;
}
streams_.erase(it);
return true;
}
}
return false;
}
bool QuicWriteBlockedList::StaticStreamCollection::SetBlocked(QuicStreamId id) {
for (auto& stream : streams_) {
if (stream.id == id) {
if (!stream.is_blocked) {
stream.is_blocked = true;
++num_blocked_;
}
return true;
}
}
return false;
}
bool QuicWriteBlockedList::StaticStreamCollection::UnblockFirstBlocked(
QuicStreamId* id) {
for (auto& stream : streams_) {
if (stream.is_blocked) {
--num_blocked_;
stream.is_blocked = false;
*id = stream.id;
return true;
}
}
return false;
}
} | #include "quiche/quic/core/quic_write_blocked_list.h"
#include <optional>
#include <tuple>
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/platform/api/quiche_expect_bug.h"
using spdy::kV3HighestPriority;
using spdy::kV3LowestPriority;
namespace quic {
namespace test {
namespace {
constexpr bool kStatic = true;
constexpr bool kNotStatic = false;
constexpr bool kIncremental = true;
constexpr bool kNotIncremental = false;
class QuicWriteBlockedListTest : public QuicTest {
protected:
void SetUp() override {
write_blocked_list_.emplace();
}
bool HasWriteBlockedDataStreams() const {
return write_blocked_list_->HasWriteBlockedDataStreams();
}
bool HasWriteBlockedSpecialStream() const {
return write_blocked_list_->HasWriteBlockedSpecialStream();
}
size_t NumBlockedSpecialStreams() const {
return write_blocked_list_->NumBlockedSpecialStreams();
}
size_t NumBlockedStreams() const {
return write_blocked_list_->NumBlockedStreams();
}
bool ShouldYield(QuicStreamId id) const {
return write_blocked_list_->ShouldYield(id);
}
QuicStreamPriority GetPriorityOfStream(QuicStreamId id) const {
return write_blocked_list_->GetPriorityOfStream(id);
}
QuicStreamId PopFront() { return write_blocked_list_->PopFront(); }
void RegisterStream(QuicStreamId stream_id, bool is_static_stream,
const HttpStreamPriority& priority) {
write_blocked_list_->RegisterStream(stream_id, is_static_stream,
QuicStreamPriority(priority));
}
void UnregisterStream(QuicStreamId stream_id) {
write_blocked_list_->UnregisterStream(stream_id);
}
void UpdateStreamPriority(QuicStreamId stream_id,
const HttpStreamPriority& new_priority) {
write_blocked_list_->UpdateStreamPriority(stream_id,
QuicStreamPriority(new_priority));
}
void UpdateBytesForStream(QuicStreamId stream_id, size_t bytes) {
write_blocked_list_->UpdateBytesForStream(stream_id, bytes);
}
void AddStream(QuicStreamId stream_id) {
write_blocked_list_->AddStream(stream_id);
}
bool IsStreamBlocked(QuicStreamId stream_id) const {
return write_blocked_list_->IsStreamBlocked(stream_id);
}
private:
std::optional<QuicWriteBlockedList> write_blocked_list_;
};
TEST_F(QuicWriteBlockedListTest, PriorityOrder) {
RegisterStream(40, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(23, kNotStatic, {kV3HighestPriority, kIncremental});
RegisterStream(17, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(1, kStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(3, kStatic, {kV3HighestPriority, kNotIncremental});
EXPECT_EQ(kV3LowestPriority, GetPriorityOfStream(40).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(40).http().incremental);
EXPECT_EQ(kV3HighestPriority, GetPriorityOfStream(23).http().urgency);
EXPECT_EQ(kIncremental, GetPriorityOfStream(23).http().incremental);
EXPECT_EQ(kV3HighestPriority, GetPriorityOfStream(17).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(17).http().incremental);
AddStream(40);
EXPECT_TRUE(IsStreamBlocked(40));
AddStream(23);
EXPECT_TRUE(IsStreamBlocked(23));
AddStream(17);
EXPECT_TRUE(IsStreamBlocked(17));
AddStream(3);
EXPECT_TRUE(IsStreamBlocked(3));
AddStream(1);
EXPECT_TRUE(IsStreamBlocked(1));
EXPECT_EQ(5u, NumBlockedStreams());
EXPECT_TRUE(HasWriteBlockedSpecialStream());
EXPECT_EQ(2u, NumBlockedSpecialStreams());
EXPECT_TRUE(HasWriteBlockedDataStreams());
EXPECT_EQ(1u, PopFront());
EXPECT_EQ(1u, NumBlockedSpecialStreams());
EXPECT_FALSE(IsStreamBlocked(1));
EXPECT_EQ(3u, PopFront());
EXPECT_EQ(0u, NumBlockedSpecialStreams());
EXPECT_FALSE(IsStreamBlocked(3));
EXPECT_EQ(23u, PopFront());
EXPECT_FALSE(IsStreamBlocked(23));
EXPECT_EQ(17u, PopFront());
EXPECT_FALSE(IsStreamBlocked(17));
EXPECT_EQ(40u, PopFront());
EXPECT_FALSE(IsStreamBlocked(40));
EXPECT_EQ(0u, NumBlockedStreams());
EXPECT_FALSE(HasWriteBlockedSpecialStream());
EXPECT_FALSE(HasWriteBlockedDataStreams());
}
TEST_F(QuicWriteBlockedListTest, SingleStaticStream) {
RegisterStream(5, kStatic, {kV3HighestPriority, kNotIncremental});
AddStream(5);
EXPECT_EQ(1u, NumBlockedStreams());
EXPECT_TRUE(HasWriteBlockedSpecialStream());
EXPECT_EQ(5u, PopFront());
EXPECT_EQ(0u, NumBlockedStreams());
EXPECT_FALSE(HasWriteBlockedSpecialStream());
}
TEST_F(QuicWriteBlockedListTest, StaticStreamsComeFirst) {
RegisterStream(5, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(3, kStatic, {kV3LowestPriority, kNotIncremental});
AddStream(5);
AddStream(3);
EXPECT_EQ(2u, NumBlockedStreams());
EXPECT_TRUE(HasWriteBlockedSpecialStream());
EXPECT_TRUE(HasWriteBlockedDataStreams());
EXPECT_EQ(3u, PopFront());
EXPECT_EQ(5u, PopFront());
EXPECT_EQ(0u, NumBlockedStreams());
EXPECT_FALSE(HasWriteBlockedSpecialStream());
EXPECT_FALSE(HasWriteBlockedDataStreams());
}
TEST_F(QuicWriteBlockedListTest, NoDuplicateEntries) {
const QuicStreamId kBlockedId = 5;
RegisterStream(kBlockedId, kNotStatic, {kV3HighestPriority, kNotIncremental});
AddStream(kBlockedId);
AddStream(kBlockedId);
AddStream(kBlockedId);
EXPECT_EQ(1u, NumBlockedStreams());
EXPECT_TRUE(HasWriteBlockedDataStreams());
EXPECT_EQ(kBlockedId, PopFront());
EXPECT_EQ(0u, NumBlockedStreams());
EXPECT_FALSE(HasWriteBlockedDataStreams());
}
TEST_F(QuicWriteBlockedListTest, IncrementalStreamsRoundRobin) {
const QuicStreamId id1 = 5;
const QuicStreamId id2 = 7;
const QuicStreamId id3 = 9;
RegisterStream(id1, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id2, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id3, kNotStatic, {kV3LowestPriority, kIncremental});
AddStream(id1);
AddStream(id2);
AddStream(id3);
EXPECT_EQ(id1, PopFront());
const size_t kLargeWriteSize = 1000 * 1000 * 1000;
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
EXPECT_EQ(id3, PopFront());
UpdateBytesForStream(id3, kLargeWriteSize);
AddStream(id3);
AddStream(id2);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
EXPECT_EQ(id3, PopFront());
UpdateBytesForStream(id3, kLargeWriteSize);
AddStream(id3);
EXPECT_EQ(id2, PopFront());
EXPECT_EQ(id3, PopFront());
}
class QuicWriteBlockedListParameterizedTest
: public QuicWriteBlockedListTest,
public ::testing::WithParamInterface<std::tuple<bool, bool>> {
protected:
QuicWriteBlockedListParameterizedTest()
: priority_respect_incremental_(std::get<0>(GetParam())),
disable_batch_write_(std::get<1>(GetParam())) {
SetQuicReloadableFlag(quic_priority_respect_incremental,
priority_respect_incremental_);
SetQuicReloadableFlag(quic_disable_batch_write, disable_batch_write_);
}
const bool priority_respect_incremental_;
const bool disable_batch_write_;
};
INSTANTIATE_TEST_SUITE_P(
BatchWrite, QuicWriteBlockedListParameterizedTest,
::testing::Combine(::testing::Bool(), ::testing::Bool()),
[](const testing::TestParamInfo<
QuicWriteBlockedListParameterizedTest::ParamType>& info) {
return absl::StrCat(std::get<0>(info.param) ? "RespectIncrementalTrue"
: "RespectIncrementalFalse",
std::get<1>(info.param) ? "DisableBatchWriteTrue"
: "DisableBatchWriteFalse");
});
TEST_P(QuicWriteBlockedListParameterizedTest, BatchingWrites) {
if (disable_batch_write_) {
return;
}
const QuicStreamId id1 = 5;
const QuicStreamId id2 = 7;
const QuicStreamId id3 = 9;
RegisterStream(id1, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id2, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id3, kNotStatic, {kV3HighestPriority, kIncremental});
AddStream(id1);
AddStream(id2);
EXPECT_EQ(2u, NumBlockedStreams());
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, 15999);
AddStream(id1);
EXPECT_EQ(2u, NumBlockedStreams());
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, 1);
AddStream(id1);
EXPECT_EQ(2u, NumBlockedStreams());
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, 15999);
AddStream(id2);
EXPECT_EQ(2u, NumBlockedStreams());
AddStream(id3);
EXPECT_EQ(id3, PopFront());
UpdateBytesForStream(id3, 20000);
AddStream(id3);
EXPECT_EQ(id3, PopFront());
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, 1);
AddStream(id2);
EXPECT_EQ(2u, NumBlockedStreams());
EXPECT_EQ(id1, PopFront());
}
TEST_P(QuicWriteBlockedListParameterizedTest, RoundRobin) {
if (!disable_batch_write_) {
return;
}
const QuicStreamId id1 = 5;
const QuicStreamId id2 = 7;
const QuicStreamId id3 = 9;
RegisterStream(id1, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id2, kNotStatic, {kV3LowestPriority, kIncremental});
RegisterStream(id3, kNotStatic, {kV3LowestPriority, kIncremental});
AddStream(id1);
AddStream(id2);
AddStream(id3);
EXPECT_EQ(id1, PopFront());
AddStream(id1);
EXPECT_EQ(id2, PopFront());
EXPECT_EQ(id3, PopFront());
AddStream(id3);
AddStream(id2);
EXPECT_EQ(id1, PopFront());
EXPECT_EQ(id3, PopFront());
AddStream(id3);
EXPECT_EQ(id2, PopFront());
EXPECT_EQ(id3, PopFront());
}
TEST_P(QuicWriteBlockedListParameterizedTest,
NonIncrementalStreamsKeepWriting) {
if (!priority_respect_incremental_) {
return;
}
const QuicStreamId id1 = 1;
const QuicStreamId id2 = 2;
const QuicStreamId id3 = 3;
const QuicStreamId id4 = 4;
RegisterStream(id1, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(id2, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(id3, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(id4, kNotStatic, {kV3HighestPriority, kNotIncremental});
AddStream(id1);
AddStream(id2);
AddStream(id3);
EXPECT_EQ(id1, PopFront());
const size_t kLargeWriteSize = 1000 * 1000 * 1000;
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
AddStream(id4);
EXPECT_EQ(id4, PopFront());
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
AddStream(id2);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
AddStream(id2);
AddStream(id1);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
EXPECT_EQ(id3, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
AddStream(id3);
EXPECT_EQ(id3, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
}
TEST_P(QuicWriteBlockedListParameterizedTest,
IncrementalAndNonIncrementalStreams) {
if (!priority_respect_incremental_) {
return;
}
const QuicStreamId id1 = 1;
const QuicStreamId id2 = 2;
RegisterStream(id1, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(id2, kNotStatic, {kV3LowestPriority, kIncremental});
AddStream(id1);
AddStream(id2);
EXPECT_EQ(id1, PopFront());
const size_t kSmallWriteSize = 1000;
UpdateBytesForStream(id1, kSmallWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kSmallWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kSmallWriteSize);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kSmallWriteSize);
AddStream(id2);
AddStream(id1);
if (!disable_batch_write_) {
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kSmallWriteSize);
AddStream(id2);
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kSmallWriteSize);
}
EXPECT_EQ(id1, PopFront());
const size_t kLargeWriteSize = 1000 * 1000 * 1000;
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id1);
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
AddStream(id2);
AddStream(id1);
if (!disable_batch_write_) {
EXPECT_EQ(id2, PopFront());
UpdateBytesForStream(id2, kLargeWriteSize);
AddStream(id2);
}
EXPECT_EQ(id1, PopFront());
UpdateBytesForStream(id1, kLargeWriteSize);
}
TEST_F(QuicWriteBlockedListTest, Ceding) {
RegisterStream(15, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(16, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(5, kNotStatic, {5, kNotIncremental});
RegisterStream(4, kNotStatic, {5, kNotIncremental});
RegisterStream(7, kNotStatic, {7, kNotIncremental});
RegisterStream(1, kStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(3, kStatic, {kV3HighestPriority, kNotIncremental});
EXPECT_FALSE(ShouldYield(5));
AddStream(5);
EXPECT_FALSE(ShouldYield(5));
EXPECT_TRUE(ShouldYield(4));
EXPECT_TRUE(ShouldYield(7));
EXPECT_FALSE(ShouldYield(15));
EXPECT_FALSE(ShouldYield(3));
EXPECT_FALSE(ShouldYield(1));
AddStream(15);
EXPECT_TRUE(ShouldYield(16));
EXPECT_FALSE(ShouldYield(3));
EXPECT_FALSE(ShouldYield(1));
AddStream(3);
EXPECT_TRUE(ShouldYield(16));
EXPECT_TRUE(ShouldYield(15));
EXPECT_FALSE(ShouldYield(3));
EXPECT_FALSE(ShouldYield(1));
AddStream(1);
EXPECT_TRUE(ShouldYield(16));
EXPECT_TRUE(ShouldYield(15));
EXPECT_TRUE(ShouldYield(3));
EXPECT_FALSE(ShouldYield(1));
}
TEST_F(QuicWriteBlockedListTest, UnregisterStream) {
RegisterStream(40, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(23, kNotStatic, {6, kNotIncremental});
RegisterStream(12, kNotStatic, {3, kNotIncremental});
RegisterStream(17, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(1, kStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(3, kStatic, {kV3HighestPriority, kNotIncremental});
AddStream(40);
AddStream(23);
AddStream(12);
AddStream(17);
AddStream(1);
AddStream(3);
UnregisterStream(23);
UnregisterStream(1);
EXPECT_EQ(3u, PopFront());
EXPECT_EQ(17u, PopFront());
EXPECT_EQ(12u, PopFront());
EXPECT_EQ(40, PopFront());
}
TEST_F(QuicWriteBlockedListTest, UnregisterNotRegisteredStream) {
EXPECT_QUICHE_BUG(UnregisterStream(1), "Stream 1 not registered");
RegisterStream(2, kNotStatic, {kV3HighestPriority, kIncremental});
UnregisterStream(2);
EXPECT_QUICHE_BUG(UnregisterStream(2), "Stream 2 not registered");
}
TEST_F(QuicWriteBlockedListTest, UpdateStreamPriority) {
RegisterStream(40, kNotStatic, {kV3LowestPriority, kNotIncremental});
RegisterStream(23, kNotStatic, {6, kIncremental});
RegisterStream(17, kNotStatic, {kV3HighestPriority, kNotIncremental});
RegisterStream(1, kStatic, {2, kNotIncremental});
RegisterStream(3, kStatic, {kV3HighestPriority, kNotIncremental});
EXPECT_EQ(kV3LowestPriority, GetPriorityOfStream(40).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(40).http().incremental);
EXPECT_EQ(6, GetPriorityOfStream(23).http().urgency);
EXPECT_EQ(kIncremental, GetPriorityOfStream(23).http().incremental);
EXPECT_EQ(kV3HighestPriority, GetPriorityOfStream(17).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(17).http().incremental);
UpdateStreamPriority(40, {3, kIncremental});
UpdateStreamPriority(23, {kV3HighestPriority, kNotIncremental});
UpdateStreamPriority(17, {5, kNotIncremental});
EXPECT_EQ(3, GetPriorityOfStream(40).http().urgency);
EXPECT_EQ(kIncremental, GetPriorityOfStream(40).http().incremental);
EXPECT_EQ(kV3HighestPriority, GetPriorityOfStream(23).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(23).http().incremental);
EXPECT_EQ(5, GetPriorityOfStream(17).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(17).http().incremental);
AddStream(40);
AddStream(23);
AddStream(17);
AddStream(1);
AddStream(3);
EXPECT_EQ(1u, PopFront());
EXPECT_EQ(3u, PopFront());
EXPECT_EQ(23u, PopFront());
EXPECT_EQ(40u, PopFront());
EXPECT_EQ(17u, PopFront());
}
TEST_F(QuicWriteBlockedListTest, UpdateStaticStreamPriority) {
RegisterStream(2, kStatic, {kV3LowestPriority, kNotIncremental});
EXPECT_QUICHE_DEBUG_DEATH(
UpdateStreamPriority(2, {kV3HighestPriority, kNotIncremental}),
"IsRegistered");
}
TEST_F(QuicWriteBlockedListTest, UpdateStreamPrioritySameUrgency) {
RegisterStream(1, kNotStatic, {6, kNotIncremental});
RegisterStream(2, kNotStatic, {6, kNotIncremental});
AddStream(1);
AddStream(2);
EXPECT_EQ(1u, PopFront());
EXPECT_EQ(2u, PopFront());
RegisterStream(3, kNotStatic, {6, kNotIncremental});
RegisterStream(4, kNotStatic, {6, kNotIncremental});
EXPECT_EQ(6, GetPriorityOfStream(3).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(3).http().incremental);
UpdateStreamPriority(3, {6, kIncremental});
EXPECT_EQ(6, GetPriorityOfStream(3).http().urgency);
EXPECT_EQ(kIncremental, GetPriorityOfStream(3).http().incremental);
AddStream(3);
AddStream(4);
EXPECT_EQ(3u, PopFront());
EXPECT_EQ(4u, PopFront());
RegisterStream(5, kNotStatic, {6, kIncremental});
RegisterStream(6, kNotStatic, {6, kIncremental});
EXPECT_EQ(6, GetPriorityOfStream(6).http().urgency);
EXPECT_EQ(kIncremental, GetPriorityOfStream(6).http().incremental);
UpdateStreamPriority(6, {6, kNotIncremental});
EXPECT_EQ(6, GetPriorityOfStream(6).http().urgency);
EXPECT_EQ(kNotIncremental, GetPriorityOfStream(6).http().incremental);
AddStream(5);
AddStream(6);
EXPECT_EQ(5u, PopFront());
EXPECT_EQ(6u, PopFront());
}
}
}
} |
277 | cpp | google/quiche | quic_datagram_queue | quiche/quic/core/quic_datagram_queue.cc | quiche/quic/core/quic_datagram_queue_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_DATAGRAM_QUEUE_H_
#define QUICHE_QUIC_CORE_QUIC_DATAGRAM_QUEUE_H_
#include <cstdint>
#include <memory>
#include <optional>
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
class QuicSession;
class QUICHE_EXPORT QuicDatagramQueue {
public:
class QUICHE_EXPORT Observer {
public:
virtual ~Observer() = default;
virtual void OnDatagramProcessed(std::optional<MessageStatus> status) = 0;
};
explicit QuicDatagramQueue(QuicSession* session);
QuicDatagramQueue(QuicSession* session, std::unique_ptr<Observer> observer);
MessageStatus SendOrQueueDatagram(quiche::QuicheMemSlice datagram);
std::optional<MessageStatus> TrySendingNextDatagram();
size_t SendDatagrams();
QuicTime::Delta GetMaxTimeInQueue() const;
void SetMaxTimeInQueue(QuicTime::Delta max_time_in_queue) {
max_time_in_queue_ = max_time_in_queue;
}
void SetForceFlush(bool force_flush) { force_flush_ = force_flush; }
size_t queue_size() { return queue_.size(); }
bool empty() { return queue_.empty(); }
uint64_t expired_datagram_count() const { return expired_datagram_count_; }
private:
struct QUICHE_EXPORT Datagram {
quiche::QuicheMemSlice datagram;
QuicTime expiry;
};
void RemoveExpiredDatagrams();
QuicSession* session_;
const QuicClock* clock_;
QuicTime::Delta max_time_in_queue_ = QuicTime::Delta::Zero();
quiche::QuicheCircularDeque<Datagram> queue_;
std::unique_ptr<Observer> observer_;
uint64_t expired_datagram_count_ = 0;
bool force_flush_ = false;
};
}
#endif
#include "quiche/quic/core/quic_datagram_queue.h"
#include <algorithm>
#include <memory>
#include <optional>
#include <utility>
#include "absl/types/span.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
namespace quic {
constexpr float kExpiryInMinRtts = 1.25;
constexpr float kMinPacingWindows = 4;
QuicDatagramQueue::QuicDatagramQueue(QuicSession* session)
: QuicDatagramQueue(session, nullptr) {}
QuicDatagramQueue::QuicDatagramQueue(QuicSession* session,
std::unique_ptr<Observer> observer)
: session_(session),
clock_(session->connection()->clock()),
observer_(std::move(observer)) {}
MessageStatus QuicDatagramQueue::SendOrQueueDatagram(
quiche::QuicheMemSlice datagram) {
if (queue_.empty()) {
MessageResult result = session_->SendMessage(absl::MakeSpan(&datagram, 1),
force_flush_);
if (result.status != MESSAGE_STATUS_BLOCKED) {
if (observer_) {
observer_->OnDatagramProcessed(result.status);
}
return result.status;
}
}
queue_.emplace_back(Datagram{std::move(datagram),
clock_->ApproximateNow() + GetMaxTimeInQueue()});
return MESSAGE_STATUS_BLOCKED;
}
std::optional<MessageStatus> QuicDatagramQueue::TrySendingNextDatagram() {
RemoveExpiredDatagrams();
if (queue_.empty()) {
return std::nullopt;
}
MessageResult result =
session_->SendMessage(absl::MakeSpan(&queue_.front().datagram, 1));
if (result.status != MESSAGE_STATUS_BLOCKED) {
queue_.pop_front();
if (observer_) {
observer_->OnDatagramProcessed(result.status);
}
}
return result.status;
}
size_t QuicDatagramQueue::SendDatagrams() {
size_t num_datagrams = 0;
for (;;) {
std::optional<MessageStatus> status = TrySendingNextDatagram();
if (!status.has_value()) {
break;
}
if (*status == MESSAGE_STATUS_BLOCKED) {
break;
}
num_datagrams++;
}
return num_datagrams;
}
QuicTime::Delta QuicDatagramQueue::GetMaxTimeInQueue() const {
if (!max_time_in_queue_.IsZero()) {
return max_time_in_queue_;
}
const QuicTime::Delta min_rtt =
session_->connection()->sent_packet_manager().GetRttStats()->min_rtt();
return std::max(kExpiryInMinRtts * min_rtt,
kMinPacingWindows * kAlarmGranularity);
}
void QuicDatagramQueue::RemoveExpiredDatagrams() {
QuicTime now = clock_->ApproximateNow();
while (!queue_.empty() && queue_.front().expiry <= now) {
++expired_datagram_count_;
queue_.pop_front();
if (observer_) {
observer_->OnDatagramProcessed(std::nullopt);
}
}
}
} | #include "quiche/quic/core/quic_datagram_queue.h"
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/platform/api/quiche_reference_counted.h"
#include "quiche/common/quiche_buffer_allocator.h"
namespace quic {
namespace test {
namespace {
using testing::_;
using testing::ElementsAre;
using testing::Return;
class EstablishedCryptoStream : public MockQuicCryptoStream {
public:
using MockQuicCryptoStream::MockQuicCryptoStream;
bool encryption_established() const override { return true; }
};
class QuicDatagramQueueObserver final : public QuicDatagramQueue::Observer {
public:
class Context : public quiche::QuicheReferenceCounted {
public:
std::vector<std::optional<MessageStatus>> statuses;
};
QuicDatagramQueueObserver() : context_(new Context()) {}
QuicDatagramQueueObserver(const QuicDatagramQueueObserver&) = delete;
QuicDatagramQueueObserver& operator=(const QuicDatagramQueueObserver&) =
delete;
void OnDatagramProcessed(std::optional<MessageStatus> status) override {
context_->statuses.push_back(std::move(status));
}
const quiche::QuicheReferenceCountedPointer<Context>& context() {
return context_;
}
private:
quiche::QuicheReferenceCountedPointer<Context> context_;
};
class QuicDatagramQueueTestBase : public QuicTest {
protected:
QuicDatagramQueueTestBase()
: connection_(new MockQuicConnection(&helper_, &alarm_factory_,
Perspective::IS_CLIENT)),
session_(connection_) {
session_.SetCryptoStream(new EstablishedCryptoStream(&session_));
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
}
~QuicDatagramQueueTestBase() = default;
quiche::QuicheMemSlice CreateMemSlice(absl::string_view data) {
return quiche::QuicheMemSlice(quiche::QuicheBuffer::Copy(
helper_.GetStreamSendBufferAllocator(), data));
}
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
MockQuicConnection* connection_;
MockQuicSession session_;
};
class QuicDatagramQueueTest : public QuicDatagramQueueTestBase {
public:
QuicDatagramQueueTest() : queue_(&session_) {}
protected:
QuicDatagramQueue queue_;
};
TEST_F(QuicDatagramQueueTest, SendDatagramImmediately) {
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_SUCCESS));
MessageStatus status = queue_.SendOrQueueDatagram(CreateMemSlice("test"));
EXPECT_EQ(MESSAGE_STATUS_SUCCESS, status);
EXPECT_EQ(0u, queue_.queue_size());
}
TEST_F(QuicDatagramQueueTest, SendDatagramAfterBuffering) {
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
MessageStatus initial_status =
queue_.SendOrQueueDatagram(CreateMemSlice("test"));
EXPECT_EQ(MESSAGE_STATUS_BLOCKED, initial_status);
EXPECT_EQ(1u, queue_.queue_size());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
std::optional<MessageStatus> status = queue_.TrySendingNextDatagram();
ASSERT_TRUE(status.has_value());
EXPECT_EQ(MESSAGE_STATUS_BLOCKED, *status);
EXPECT_EQ(1u, queue_.queue_size());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_SUCCESS));
status = queue_.TrySendingNextDatagram();
ASSERT_TRUE(status.has_value());
EXPECT_EQ(MESSAGE_STATUS_SUCCESS, *status);
EXPECT_EQ(0u, queue_.queue_size());
}
TEST_F(QuicDatagramQueueTest, EmptyBuffer) {
std::optional<MessageStatus> status = queue_.TrySendingNextDatagram();
EXPECT_FALSE(status.has_value());
size_t num_messages = queue_.SendDatagrams();
EXPECT_EQ(0u, num_messages);
}
TEST_F(QuicDatagramQueueTest, MultipleDatagrams) {
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
queue_.SendOrQueueDatagram(CreateMemSlice("a"));
queue_.SendOrQueueDatagram(CreateMemSlice("b"));
queue_.SendOrQueueDatagram(CreateMemSlice("c"));
queue_.SendOrQueueDatagram(CreateMemSlice("d"));
queue_.SendOrQueueDatagram(CreateMemSlice("e"));
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.Times(5)
.WillRepeatedly(Return(MESSAGE_STATUS_SUCCESS));
size_t num_messages = queue_.SendDatagrams();
EXPECT_EQ(5u, num_messages);
}
TEST_F(QuicDatagramQueueTest, DefaultMaxTimeInQueue) {
EXPECT_EQ(QuicTime::Delta::Zero(),
connection_->sent_packet_manager().GetRttStats()->min_rtt());
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(4), queue_.GetMaxTimeInQueue());
RttStats* stats =
const_cast<RttStats*>(connection_->sent_packet_manager().GetRttStats());
stats->UpdateRtt(QuicTime::Delta::FromMilliseconds(100),
QuicTime::Delta::Zero(), helper_.GetClock()->Now());
EXPECT_EQ(QuicTime::Delta::FromMilliseconds(125), queue_.GetMaxTimeInQueue());
}
TEST_F(QuicDatagramQueueTest, Expiry) {
constexpr QuicTime::Delta expiry = QuicTime::Delta::FromMilliseconds(100);
queue_.SetMaxTimeInQueue(expiry);
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
queue_.SendOrQueueDatagram(CreateMemSlice("a"));
helper_.AdvanceTime(0.6 * expiry);
queue_.SendOrQueueDatagram(CreateMemSlice("b"));
helper_.AdvanceTime(0.6 * expiry);
queue_.SendOrQueueDatagram(CreateMemSlice("c"));
std::vector<std::string> messages;
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillRepeatedly([&messages](QuicMessageId ,
absl::Span<quiche::QuicheMemSlice> message,
bool ) {
messages.push_back(std::string(message[0].AsStringView()));
return MESSAGE_STATUS_SUCCESS;
});
EXPECT_EQ(2u, queue_.SendDatagrams());
EXPECT_THAT(messages, ElementsAre("b", "c"));
}
TEST_F(QuicDatagramQueueTest, ExpireAll) {
constexpr QuicTime::Delta expiry = QuicTime::Delta::FromMilliseconds(100);
queue_.SetMaxTimeInQueue(expiry);
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
queue_.SendOrQueueDatagram(CreateMemSlice("a"));
queue_.SendOrQueueDatagram(CreateMemSlice("b"));
queue_.SendOrQueueDatagram(CreateMemSlice("c"));
helper_.AdvanceTime(100 * expiry);
EXPECT_CALL(*connection_, SendMessage(_, _, _)).Times(0);
EXPECT_EQ(0u, queue_.SendDatagrams());
}
class QuicDatagramQueueWithObserverTest : public QuicDatagramQueueTestBase {
public:
QuicDatagramQueueWithObserverTest()
: observer_(std::make_unique<QuicDatagramQueueObserver>()),
context_(observer_->context()),
queue_(&session_, std::move(observer_)) {}
protected:
std::unique_ptr<QuicDatagramQueueObserver> observer_;
quiche::QuicheReferenceCountedPointer<QuicDatagramQueueObserver::Context>
context_;
QuicDatagramQueue queue_;
};
TEST_F(QuicDatagramQueueWithObserverTest, ObserveSuccessImmediately) {
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_SUCCESS));
EXPECT_EQ(MESSAGE_STATUS_SUCCESS,
queue_.SendOrQueueDatagram(CreateMemSlice("a")));
EXPECT_THAT(context_->statuses, ElementsAre(MESSAGE_STATUS_SUCCESS));
}
TEST_F(QuicDatagramQueueWithObserverTest, ObserveFailureImmediately) {
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_TOO_LARGE));
EXPECT_EQ(MESSAGE_STATUS_TOO_LARGE,
queue_.SendOrQueueDatagram(CreateMemSlice("a")));
EXPECT_THAT(context_->statuses, ElementsAre(MESSAGE_STATUS_TOO_LARGE));
}
TEST_F(QuicDatagramQueueWithObserverTest, BlockingShouldNotBeObserved) {
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillRepeatedly(Return(MESSAGE_STATUS_BLOCKED));
EXPECT_EQ(MESSAGE_STATUS_BLOCKED,
queue_.SendOrQueueDatagram(CreateMemSlice("a")));
EXPECT_EQ(0u, queue_.SendDatagrams());
EXPECT_TRUE(context_->statuses.empty());
}
TEST_F(QuicDatagramQueueWithObserverTest, ObserveSuccessAfterBuffering) {
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
EXPECT_EQ(MESSAGE_STATUS_BLOCKED,
queue_.SendOrQueueDatagram(CreateMemSlice("a")));
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_SUCCESS));
EXPECT_EQ(1u, queue_.SendDatagrams());
EXPECT_THAT(context_->statuses, ElementsAre(MESSAGE_STATUS_SUCCESS));
}
TEST_F(QuicDatagramQueueWithObserverTest, ObserveExpiry) {
constexpr QuicTime::Delta expiry = QuicTime::Delta::FromMilliseconds(100);
queue_.SetMaxTimeInQueue(expiry);
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _))
.WillOnce(Return(MESSAGE_STATUS_BLOCKED));
EXPECT_EQ(MESSAGE_STATUS_BLOCKED,
queue_.SendOrQueueDatagram(CreateMemSlice("a")));
EXPECT_TRUE(context_->statuses.empty());
EXPECT_CALL(*connection_, SendMessage(_, _, _)).Times(0);
helper_.AdvanceTime(100 * expiry);
EXPECT_TRUE(context_->statuses.empty());
EXPECT_EQ(0u, queue_.SendDatagrams());
EXPECT_THAT(context_->statuses, ElementsAre(std::nullopt));
}
}
}
} |
278 | cpp | google/quiche | quic_ping_manager | quiche/quic/core/quic_ping_manager.cc | quiche/quic/core/quic_ping_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_PING_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_PING_MANAGER_H_
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicConnectionPeer;
class QuicPingManagerPeer;
}
class QUICHE_EXPORT QuicPingManager {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() {}
virtual void OnKeepAliveTimeout() = 0;
virtual void OnRetransmittableOnWireTimeout() = 0;
};
QuicPingManager(Perspective perspective, Delegate* delegate,
QuicAlarm* alarm);
void SetAlarm(QuicTime now, bool should_keep_alive,
bool has_in_flight_packets);
void OnAlarm();
void Stop();
void set_keep_alive_timeout(QuicTime::Delta keep_alive_timeout) {
QUICHE_DCHECK(!alarm_.IsSet());
keep_alive_timeout_ = keep_alive_timeout;
}
void set_initial_retransmittable_on_wire_timeout(
QuicTime::Delta retransmittable_on_wire_timeout) {
QUICHE_DCHECK(!alarm_.IsSet());
initial_retransmittable_on_wire_timeout_ = retransmittable_on_wire_timeout;
}
void reset_consecutive_retransmittable_on_wire_count() {
consecutive_retransmittable_on_wire_count_ = 0;
}
private:
friend class test::QuicConnectionPeer;
friend class test::QuicPingManagerPeer;
void UpdateDeadlines(QuicTime now, bool should_keep_alive,
bool has_in_flight_packets);
QuicTime GetEarliestDeadline() const;
Perspective perspective_;
Delegate* delegate_;
QuicTime::Delta initial_retransmittable_on_wire_timeout_ =
QuicTime::Delta::Infinite();
int consecutive_retransmittable_on_wire_count_ = 0;
int retransmittable_on_wire_count_ = 0;
QuicTime::Delta keep_alive_timeout_ =
QuicTime::Delta::FromSeconds(kPingTimeoutSecs);
QuicTime retransmittable_on_wire_deadline_ = QuicTime::Zero();
QuicTime keep_alive_deadline_ = QuicTime::Zero();
QuicAlarm& alarm_;
};
}
#endif
#include "quiche/quic/core/quic_ping_manager.h"
#include <algorithm>
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
namespace {
const int kMaxRetransmittableOnWireDelayShift = 10;
}
QuicPingManager::QuicPingManager(Perspective perspective, Delegate* delegate,
QuicAlarm* alarm)
: perspective_(perspective), delegate_(delegate), alarm_(*alarm) {}
void QuicPingManager::SetAlarm(QuicTime now, bool should_keep_alive,
bool has_in_flight_packets) {
UpdateDeadlines(now, should_keep_alive, has_in_flight_packets);
const QuicTime earliest_deadline = GetEarliestDeadline();
if (!earliest_deadline.IsInitialized()) {
alarm_.Cancel();
return;
}
if (earliest_deadline == keep_alive_deadline_) {
alarm_.Update(earliest_deadline, QuicTime::Delta::FromSeconds(1));
return;
}
alarm_.Update(earliest_deadline, kAlarmGranularity);
}
void QuicPingManager::OnAlarm() {
const QuicTime earliest_deadline = GetEarliestDeadline();
if (!earliest_deadline.IsInitialized()) {
QUIC_BUG(quic_ping_manager_alarm_fires_unexpectedly)
<< "QuicPingManager alarm fires unexpectedly.";
return;
}
if (earliest_deadline == retransmittable_on_wire_deadline_) {
retransmittable_on_wire_deadline_ = QuicTime::Zero();
if (GetQuicFlag(quic_max_aggressive_retransmittable_on_wire_ping_count) !=
0) {
++consecutive_retransmittable_on_wire_count_;
}
++retransmittable_on_wire_count_;
delegate_->OnRetransmittableOnWireTimeout();
return;
}
if (earliest_deadline == keep_alive_deadline_) {
keep_alive_deadline_ = QuicTime::Zero();
delegate_->OnKeepAliveTimeout();
}
}
void QuicPingManager::Stop() {
alarm_.PermanentCancel();
retransmittable_on_wire_deadline_ = QuicTime::Zero();
keep_alive_deadline_ = QuicTime::Zero();
}
void QuicPingManager::UpdateDeadlines(QuicTime now, bool should_keep_alive,
bool has_in_flight_packets) {
keep_alive_deadline_ = QuicTime::Zero();
if (perspective_ == Perspective::IS_SERVER &&
initial_retransmittable_on_wire_timeout_.IsInfinite()) {
QUICHE_DCHECK(!retransmittable_on_wire_deadline_.IsInitialized());
return;
}
if (!should_keep_alive) {
retransmittable_on_wire_deadline_ = QuicTime::Zero();
return;
}
if (perspective_ == Perspective::IS_CLIENT) {
keep_alive_deadline_ = now + keep_alive_timeout_;
}
if (initial_retransmittable_on_wire_timeout_.IsInfinite() ||
has_in_flight_packets ||
retransmittable_on_wire_count_ >
GetQuicFlag(quic_max_retransmittable_on_wire_ping_count)) {
retransmittable_on_wire_deadline_ = QuicTime::Zero();
return;
}
QUICHE_DCHECK_LT(initial_retransmittable_on_wire_timeout_,
keep_alive_timeout_);
QuicTime::Delta retransmittable_on_wire_timeout =
initial_retransmittable_on_wire_timeout_;
const int max_aggressive_retransmittable_on_wire_count =
GetQuicFlag(quic_max_aggressive_retransmittable_on_wire_ping_count);
QUICHE_DCHECK_LE(0, max_aggressive_retransmittable_on_wire_count);
if (consecutive_retransmittable_on_wire_count_ >
max_aggressive_retransmittable_on_wire_count) {
int shift = std::min(consecutive_retransmittable_on_wire_count_ -
max_aggressive_retransmittable_on_wire_count,
kMaxRetransmittableOnWireDelayShift);
retransmittable_on_wire_timeout =
initial_retransmittable_on_wire_timeout_ * (1 << shift);
}
if (retransmittable_on_wire_deadline_.IsInitialized() &&
retransmittable_on_wire_deadline_ <
now + retransmittable_on_wire_timeout) {
return;
}
retransmittable_on_wire_deadline_ = now + retransmittable_on_wire_timeout;
}
QuicTime QuicPingManager::GetEarliestDeadline() const {
QuicTime earliest_deadline = QuicTime::Zero();
for (QuicTime t : {retransmittable_on_wire_deadline_, keep_alive_deadline_}) {
if (!t.IsInitialized()) {
continue;
}
if (!earliest_deadline.IsInitialized() || t < earliest_deadline) {
earliest_deadline = t;
}
}
return earliest_deadline;
}
} | #include "quiche/quic/core/quic_ping_manager.h"
#include "quiche/quic/core/quic_connection_alarms.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/mock_quic_connection_alarms.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
class QuicPingManagerPeer {
public:
static QuicAlarm* GetAlarm(QuicPingManager* manager) {
return &manager->alarm_;
}
static void SetPerspective(QuicPingManager* manager,
Perspective perspective) {
manager->perspective_ = perspective;
}
};
namespace {
const bool kShouldKeepAlive = true;
const bool kHasInflightPackets = true;
class MockDelegate : public QuicPingManager::Delegate {
public:
MOCK_METHOD(void, OnKeepAliveTimeout, (), (override));
MOCK_METHOD(void, OnRetransmittableOnWireTimeout, (), (override));
};
class QuicPingManagerTest : public QuicTest {
public:
QuicPingManagerTest()
: alarms_(&connection_alarms_delegate_, alarm_factory_, arena_),
manager_(Perspective::IS_CLIENT, &delegate_, &alarms_.ping_alarm()),
alarm_(static_cast<MockAlarmFactory::TestAlarm*>(
QuicPingManagerPeer::GetAlarm(&manager_))) {
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1));
ON_CALL(connection_alarms_delegate_, OnPingAlarm()).WillByDefault([&] {
manager_.OnAlarm();
});
}
protected:
testing::StrictMock<MockDelegate> delegate_;
MockConnectionAlarmsDelegate connection_alarms_delegate_;
MockClock clock_;
QuicConnectionArena arena_;
MockAlarmFactory alarm_factory_;
QuicConnectionAlarms alarms_;
QuicPingManager manager_;
MockAlarmFactory::TestAlarm* alarm_;
};
TEST_F(QuicPingManagerTest, KeepAliveTimeout) {
EXPECT_FALSE(alarm_->IsSet());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs) -
QuicTime::Delta::FromMilliseconds(5),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(kPingTimeoutSecs));
EXPECT_CALL(delegate_, OnKeepAliveTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), !kShouldKeepAlive,
kHasInflightPackets);
EXPECT_FALSE(alarm_->IsSet());
}
TEST_F(QuicPingManagerTest, CustomizedKeepAliveTimeout) {
EXPECT_FALSE(alarm_->IsSet());
manager_.set_keep_alive_timeout(QuicTime::Delta::FromSeconds(10));
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(10),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(
QuicTime::Delta::FromSeconds(10) - QuicTime::Delta::FromMilliseconds(5),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(10));
EXPECT_CALL(delegate_, OnKeepAliveTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), !kShouldKeepAlive,
kHasInflightPackets);
EXPECT_FALSE(alarm_->IsSet());
}
TEST_F(QuicPingManagerTest, RetransmittableOnWireTimeout) {
const QuicTime::Delta kRtransmittableOnWireTimeout =
QuicTime::Delta::FromMilliseconds(50);
manager_.set_initial_retransmittable_on_wire_timeout(
kRtransmittableOnWireTimeout);
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(kRtransmittableOnWireTimeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(kRtransmittableOnWireTimeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
ASSERT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
}
TEST_F(QuicPingManagerTest, RetransmittableOnWireTimeoutExponentiallyBackOff) {
const int kMaxAggressiveRetransmittableOnWireCount = 5;
SetQuicFlag(quic_max_aggressive_retransmittable_on_wire_ping_count,
kMaxAggressiveRetransmittableOnWireCount);
const QuicTime::Delta initial_retransmittable_on_wire_timeout =
QuicTime::Delta::FromMilliseconds(200);
manager_.set_initial_retransmittable_on_wire_timeout(
initial_retransmittable_on_wire_timeout);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
for (int i = 0; i <= kMaxAggressiveRetransmittableOnWireCount; ++i) {
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
}
QuicTime::Delta retransmittable_on_wire_timeout =
initial_retransmittable_on_wire_timeout;
while (retransmittable_on_wire_timeout * 2 <
QuicTime::Delta::FromSeconds(kPingTimeoutSecs)) {
retransmittable_on_wire_timeout = retransmittable_on_wire_timeout * 2;
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
}
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs) -
QuicTime::Delta::FromMilliseconds(5),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(kPingTimeoutSecs) -
QuicTime::Delta::FromMilliseconds(5));
EXPECT_CALL(delegate_, OnKeepAliveTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
}
TEST_F(QuicPingManagerTest,
ResetRetransmitableOnWireTimeoutExponentiallyBackOff) {
const int kMaxAggressiveRetransmittableOnWireCount = 3;
SetQuicFlag(quic_max_aggressive_retransmittable_on_wire_ping_count,
kMaxAggressiveRetransmittableOnWireCount);
const QuicTime::Delta initial_retransmittable_on_wire_timeout =
QuicTime::Delta::FromMilliseconds(200);
manager_.set_initial_retransmittable_on_wire_timeout(
initial_retransmittable_on_wire_timeout);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
alarm_->Fire();
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
manager_.reset_consecutive_retransmittable_on_wire_count();
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
alarm_->Fire();
for (int i = 0; i < kMaxAggressiveRetransmittableOnWireCount; i++) {
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
}
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout * 2,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(2 * initial_retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(5));
manager_.reset_consecutive_retransmittable_on_wire_count();
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
}
TEST_F(QuicPingManagerTest, RetransmittableOnWireLimit) {
static constexpr int kMaxRetransmittableOnWirePingCount = 3;
SetQuicFlag(quic_max_retransmittable_on_wire_ping_count,
kMaxRetransmittableOnWirePingCount);
static constexpr QuicTime::Delta initial_retransmittable_on_wire_timeout =
QuicTime::Delta::FromMilliseconds(200);
static constexpr QuicTime::Delta kShortDelay =
QuicTime::Delta::FromMilliseconds(5);
ASSERT_LT(kShortDelay * 10, initial_retransmittable_on_wire_timeout);
manager_.set_initial_retransmittable_on_wire_timeout(
initial_retransmittable_on_wire_timeout);
clock_.AdvanceTime(kShortDelay);
EXPECT_FALSE(alarm_->IsSet());
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
for (int i = 0; i <= kMaxRetransmittableOnWirePingCount; i++) {
clock_.AdvanceTime(kShortDelay);
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
}
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kPingTimeoutSecs),
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(QuicTime::Delta::FromSeconds(kPingTimeoutSecs));
EXPECT_CALL(delegate_, OnKeepAliveTimeout());
alarm_->Fire();
EXPECT_FALSE(alarm_->IsSet());
}
TEST_F(QuicPingManagerTest, MaxRetransmittableOnWireDelayShift) {
QuicPingManagerPeer::SetPerspective(&manager_, Perspective::IS_SERVER);
const int kMaxAggressiveRetransmittableOnWireCount = 3;
SetQuicFlag(quic_max_aggressive_retransmittable_on_wire_ping_count,
kMaxAggressiveRetransmittableOnWireCount);
const QuicTime::Delta initial_retransmittable_on_wire_timeout =
QuicTime::Delta::FromMilliseconds(200);
manager_.set_initial_retransmittable_on_wire_timeout(
initial_retransmittable_on_wire_timeout);
for (int i = 0; i <= kMaxAggressiveRetransmittableOnWireCount; i++) {
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
EXPECT_EQ(initial_retransmittable_on_wire_timeout,
alarm_->deadline() - clock_.ApproximateNow());
clock_.AdvanceTime(initial_retransmittable_on_wire_timeout);
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
kHasInflightPackets);
}
for (int i = 1; i <= 20; ++i) {
manager_.SetAlarm(clock_.ApproximateNow(), kShouldKeepAlive,
!kHasInflightPackets);
EXPECT_TRUE(alarm_->IsSet());
if (i <= 10) {
EXPECT_EQ(initial_retransmittable_on_wire_timeout * (1 << i),
alarm_->deadline() - clock_.ApproximateNow());
} else {
EXPECT_EQ(initial_retransmittable_on_wire_timeout * (1 << 10),
alarm_->deadline() - clock_.ApproximateNow());
}
clock_.AdvanceTime(alarm_->deadline() - clock_.ApproximateNow());
EXPECT_CALL(delegate_, OnRetransmittableOnWireTimeout());
alarm_->Fire();
}
}
}
}
} |
279 | cpp | google/quiche | internet_checksum | quiche/quic/core/internet_checksum.cc | quiche/quic/core/internet_checksum_test.cc | #ifndef QUICHE_QUIC_CORE_INTERNET_CHECKSUM_H_
#define QUICHE_QUIC_CORE_INTERNET_CHECKSUM_H_
#include <cstddef>
#include <cstdint>
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "quiche/common/platform/api/quiche_export.h"
namespace quic {
class QUICHE_EXPORT InternetChecksum {
public:
void Update(const char* data, size_t size);
void Update(const uint8_t* data, size_t size);
void Update(absl::string_view data);
void Update(absl::Span<const uint8_t> data);
uint16_t Value() const;
private:
uint32_t accumulator_ = 0;
};
}
#endif
#include "quiche/quic/core/internet_checksum.h"
#include <stdint.h>
#include <string.h>
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
namespace quic {
void InternetChecksum::Update(const char* data, size_t size) {
const char* current;
for (current = data; current + 1 < data + size; current += 2) {
uint16_t v;
memcpy(&v, current, sizeof(v));
accumulator_ += v;
}
if (current < data + size) {
accumulator_ += *reinterpret_cast<const unsigned char*>(current);
}
}
void InternetChecksum::Update(const uint8_t* data, size_t size) {
Update(reinterpret_cast<const char*>(data), size);
}
void InternetChecksum::Update(absl::string_view data) {
Update(data.data(), data.size());
}
void InternetChecksum::Update(absl::Span<const uint8_t> data) {
Update(reinterpret_cast<const char*>(data.data()), data.size());
}
uint16_t InternetChecksum::Value() const {
uint32_t total = accumulator_;
while (total & 0xffff0000u) {
total = (total >> 16u) + (total & 0xffffu);
}
return ~static_cast<uint16_t>(total);
}
} | #include "quiche/quic/core/internet_checksum.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace {
TEST(InternetChecksumTest, MatchesRFC1071Example) {
uint8_t data[] = {0x00, 0x01, 0xf2, 0x03, 0xf4, 0xf5, 0xf6, 0xf7};
InternetChecksum checksum;
checksum.Update(data, 8);
uint16_t result = checksum.Value();
auto* result_bytes = reinterpret_cast<uint8_t*>(&result);
ASSERT_EQ(0x22, result_bytes[0]);
ASSERT_EQ(0x0d, result_bytes[1]);
}
TEST(InternetChecksumTest, MatchesRFC1071ExampleWithOddByteCount) {
uint8_t data[] = {0x00, 0x01, 0xf2, 0x03, 0xf4, 0xf5, 0xf6};
InternetChecksum checksum;
checksum.Update(data, 7);
uint16_t result = checksum.Value();
auto* result_bytes = reinterpret_cast<uint8_t*>(&result);
ASSERT_EQ(0x23, result_bytes[0]);
ASSERT_EQ(0x04, result_bytes[1]);
}
TEST(InternetChecksumTest, MatchesBerkleyExample) {
uint8_t data[] = {0xe3, 0x4f, 0x23, 0x96, 0x44, 0x27, 0x99, 0xf3};
InternetChecksum checksum;
checksum.Update(data, 8);
uint16_t result = checksum.Value();
auto* result_bytes = reinterpret_cast<uint8_t*>(&result);
ASSERT_EQ(0x1a, result_bytes[0]);
ASSERT_EQ(0xff, result_bytes[1]);
}
TEST(InternetChecksumTest, ChecksumRequiringMultipleCarriesInLittleEndian) {
uint8_t data[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x00};
InternetChecksum checksum;
checksum.Update(data, 8);
uint16_t result = checksum.Value();
auto* result_bytes = reinterpret_cast<uint8_t*>(&result);
EXPECT_EQ(0xfd, result_bytes[0]);
EXPECT_EQ(0xff, result_bytes[1]);
}
}
} |
280 | cpp | google/quiche | quic_connection_id | quiche/quic/core/quic_connection_id.cc | quiche/quic/core/quic_connection_id_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONNECTION_ID_H_
#define QUICHE_QUIC_CORE_QUIC_CONNECTION_ID_H_
#include <cstdint>
#include <string>
#include <vector>
#include "absl/types/span.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
enum QuicConnectionIdIncluded : uint8_t {
CONNECTION_ID_PRESENT = 1,
CONNECTION_ID_ABSENT = 2,
};
inline constexpr uint8_t kQuicMaxConnectionIdWithLengthPrefixLength = 20;
inline constexpr uint8_t kQuicMaxConnectionId4BitLength = 18;
inline constexpr uint8_t kQuicDefaultConnectionIdLength = 8;
inline constexpr uint8_t kQuicMinimumInitialConnectionIdLength = 8;
class QUICHE_EXPORT QuicConnectionId {
public:
QuicConnectionId();
QuicConnectionId(const char* data, uint8_t length);
QuicConnectionId(const absl::Span<const uint8_t> data);
QuicConnectionId(const QuicConnectionId& other);
QuicConnectionId& operator=(const QuicConnectionId& other);
~QuicConnectionId();
uint8_t length() const;
void set_length(uint8_t length);
const char* data() const;
char* mutable_data();
bool IsEmpty() const;
size_t Hash() const;
template <typename H>
friend H AbslHashValue(H h, const QuicConnectionId& c) {
return H::combine(std::move(h), c.Hash());
}
std::string ToString() const;
friend QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
const QuicConnectionId& v);
bool operator==(const QuicConnectionId& v) const;
bool operator!=(const QuicConnectionId& v) const;
bool operator<(const QuicConnectionId& v) const;
private:
union {
struct {
uint8_t padding_;
char data_short_[11];
};
struct {
uint8_t length_;
char* data_long_;
};
};
};
QUICHE_EXPORT QuicConnectionId EmptyQuicConnectionId();
class QUICHE_EXPORT QuicConnectionIdHash {
public:
size_t operator()(QuicConnectionId const& connection_id) const noexcept {
return connection_id.Hash();
}
};
}
#endif
#include "quiche/quic/core/quic_connection_id.h"
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <iomanip>
#include <ostream>
#include <string>
#include "absl/strings/escaping.h"
#include "openssl/siphash.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/quiche_endian.h"
namespace quic {
namespace {
class QuicConnectionIdHasher {
public:
inline QuicConnectionIdHasher()
: QuicConnectionIdHasher(QuicRandom::GetInstance()) {}
explicit inline QuicConnectionIdHasher(QuicRandom* random) {
random->RandBytes(&sip_hash_key_, sizeof(sip_hash_key_));
}
inline size_t Hash(const char* input, size_t input_len) const {
return static_cast<size_t>(SIPHASH_24(
sip_hash_key_, reinterpret_cast<const uint8_t*>(input), input_len));
}
private:
uint64_t sip_hash_key_[2];
};
}
QuicConnectionId::QuicConnectionId() : QuicConnectionId(nullptr, 0) {
static_assert(offsetof(QuicConnectionId, padding_) ==
offsetof(QuicConnectionId, length_),
"bad offset");
static_assert(sizeof(QuicConnectionId) <= 16, "bad size");
}
QuicConnectionId::QuicConnectionId(const char* data, uint8_t length) {
length_ = length;
if (length_ == 0) {
return;
}
if (length_ <= sizeof(data_short_)) {
memcpy(data_short_, data, length_);
return;
}
data_long_ = reinterpret_cast<char*>(malloc(length_));
QUICHE_CHECK_NE(nullptr, data_long_);
memcpy(data_long_, data, length_);
}
QuicConnectionId::QuicConnectionId(const absl::Span<const uint8_t> data)
: QuicConnectionId(reinterpret_cast<const char*>(data.data()),
data.length()) {}
QuicConnectionId::~QuicConnectionId() {
if (length_ > sizeof(data_short_)) {
free(data_long_);
data_long_ = nullptr;
}
}
QuicConnectionId::QuicConnectionId(const QuicConnectionId& other)
: QuicConnectionId(other.data(), other.length()) {}
QuicConnectionId& QuicConnectionId::operator=(const QuicConnectionId& other) {
set_length(other.length());
memcpy(mutable_data(), other.data(), length_);
return *this;
}
const char* QuicConnectionId::data() const {
if (length_ <= sizeof(data_short_)) {
return data_short_;
}
return data_long_;
}
char* QuicConnectionId::mutable_data() {
if (length_ <= sizeof(data_short_)) {
return data_short_;
}
return data_long_;
}
uint8_t QuicConnectionId::length() const { return length_; }
void QuicConnectionId::set_length(uint8_t length) {
char temporary_data[sizeof(data_short_)];
if (length > sizeof(data_short_)) {
if (length_ <= sizeof(data_short_)) {
memcpy(temporary_data, data_short_, length_);
data_long_ = reinterpret_cast<char*>(malloc(length));
QUICHE_CHECK_NE(nullptr, data_long_);
memcpy(data_long_, temporary_data, length_);
} else {
char* realloc_result =
reinterpret_cast<char*>(realloc(data_long_, length));
QUICHE_CHECK_NE(nullptr, realloc_result);
data_long_ = realloc_result;
}
} else if (length_ > sizeof(data_short_)) {
memcpy(temporary_data, data_long_, length);
free(data_long_);
data_long_ = nullptr;
memcpy(data_short_, temporary_data, length);
}
length_ = length;
}
bool QuicConnectionId::IsEmpty() const { return length_ == 0; }
size_t QuicConnectionId::Hash() const {
static const QuicConnectionIdHasher hasher = QuicConnectionIdHasher();
return hasher.Hash(data(), length_);
}
std::string QuicConnectionId::ToString() const {
if (IsEmpty()) {
return std::string("0");
}
return absl::BytesToHexString(absl::string_view(data(), length_));
}
std::ostream& operator<<(std::ostream& os, const QuicConnectionId& v) {
os << v.ToString();
return os;
}
bool QuicConnectionId::operator==(const QuicConnectionId& v) const {
return length_ == v.length_ && memcmp(data(), v.data(), length_) == 0;
}
bool QuicConnectionId::operator!=(const QuicConnectionId& v) const {
return !(v == *this);
}
bool QuicConnectionId::operator<(const QuicConnectionId& v) const {
if (length_ < v.length_) {
return true;
}
if (length_ > v.length_) {
return false;
}
return memcmp(data(), v.data(), length_) < 0;
}
QuicConnectionId EmptyQuicConnectionId() { return QuicConnectionId(); }
static_assert(kQuicDefaultConnectionIdLength == sizeof(uint64_t),
"kQuicDefaultConnectionIdLength changed");
static_assert(kQuicDefaultConnectionIdLength == 8,
"kQuicDefaultConnectionIdLength changed");
} | #include "quiche/quic/core/quic_connection_id.h"
#include <cstdint>
#include <cstring>
#include <string>
#include "absl/base/macros.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic::test {
namespace {
class QuicConnectionIdTest : public QuicTest {};
TEST_F(QuicConnectionIdTest, Empty) {
QuicConnectionId connection_id_empty = EmptyQuicConnectionId();
EXPECT_TRUE(connection_id_empty.IsEmpty());
}
TEST_F(QuicConnectionIdTest, DefaultIsEmpty) {
QuicConnectionId connection_id_empty = QuicConnectionId();
EXPECT_TRUE(connection_id_empty.IsEmpty());
}
TEST_F(QuicConnectionIdTest, NotEmpty) {
QuicConnectionId connection_id = test::TestConnectionId(1);
EXPECT_FALSE(connection_id.IsEmpty());
}
TEST_F(QuicConnectionIdTest, ZeroIsNotEmpty) {
QuicConnectionId connection_id = test::TestConnectionId(0);
EXPECT_FALSE(connection_id.IsEmpty());
}
TEST_F(QuicConnectionIdTest, Data) {
char connection_id_data[kQuicDefaultConnectionIdLength];
memset(connection_id_data, 0x42, sizeof(connection_id_data));
QuicConnectionId connection_id1 =
QuicConnectionId(connection_id_data, sizeof(connection_id_data));
QuicConnectionId connection_id2 =
QuicConnectionId(connection_id_data, sizeof(connection_id_data));
EXPECT_EQ(connection_id1, connection_id2);
EXPECT_EQ(connection_id1.length(), kQuicDefaultConnectionIdLength);
EXPECT_EQ(connection_id1.data(), connection_id1.mutable_data());
EXPECT_EQ(0, memcmp(connection_id1.data(), connection_id2.data(),
sizeof(connection_id_data)));
EXPECT_EQ(0, memcmp(connection_id1.data(), connection_id_data,
sizeof(connection_id_data)));
connection_id2.mutable_data()[0] = 0x33;
EXPECT_NE(connection_id1, connection_id2);
static const uint8_t kNewLength = 4;
connection_id2.set_length(kNewLength);
EXPECT_EQ(kNewLength, connection_id2.length());
}
TEST_F(QuicConnectionIdTest, SpanData) {
QuicConnectionId connection_id = QuicConnectionId({0x01, 0x02, 0x03});
EXPECT_EQ(connection_id.length(), 3);
QuicConnectionId empty_connection_id =
QuicConnectionId(absl::Span<uint8_t>());
EXPECT_EQ(empty_connection_id.length(), 0);
QuicConnectionId connection_id2 = QuicConnectionId({
0x01,
0x02,
0x03,
0x04,
0x05,
0x06,
0x07,
0x08,
0x09,
0x0a,
0x0b,
0x0c,
0x0d,
0x0e,
0x0f,
0x10,
});
EXPECT_EQ(connection_id2.length(), 16);
}
TEST_F(QuicConnectionIdTest, DoubleConvert) {
QuicConnectionId connection_id64_1 = test::TestConnectionId(1);
QuicConnectionId connection_id64_2 = test::TestConnectionId(42);
QuicConnectionId connection_id64_3 =
test::TestConnectionId(UINT64_C(0xfedcba9876543210));
EXPECT_EQ(connection_id64_1,
test::TestConnectionId(
test::TestConnectionIdToUInt64(connection_id64_1)));
EXPECT_EQ(connection_id64_2,
test::TestConnectionId(
test::TestConnectionIdToUInt64(connection_id64_2)));
EXPECT_EQ(connection_id64_3,
test::TestConnectionId(
test::TestConnectionIdToUInt64(connection_id64_3)));
EXPECT_NE(connection_id64_1, connection_id64_2);
EXPECT_NE(connection_id64_1, connection_id64_3);
EXPECT_NE(connection_id64_2, connection_id64_3);
}
TEST_F(QuicConnectionIdTest, Hash) {
QuicConnectionId connection_id64_1 = test::TestConnectionId(1);
QuicConnectionId connection_id64_1b = test::TestConnectionId(1);
QuicConnectionId connection_id64_2 = test::TestConnectionId(42);
QuicConnectionId connection_id64_3 =
test::TestConnectionId(UINT64_C(0xfedcba9876543210));
EXPECT_EQ(connection_id64_1.Hash(), connection_id64_1b.Hash());
EXPECT_NE(connection_id64_1.Hash(), connection_id64_2.Hash());
EXPECT_NE(connection_id64_1.Hash(), connection_id64_3.Hash());
EXPECT_NE(connection_id64_2.Hash(), connection_id64_3.Hash());
const char connection_id_bytes[255] = {};
for (uint8_t i = 0; i < sizeof(connection_id_bytes) - 1; ++i) {
QuicConnectionId connection_id_i(connection_id_bytes, i);
for (uint8_t j = i + 1; j < sizeof(connection_id_bytes); ++j) {
QuicConnectionId connection_id_j(connection_id_bytes, j);
EXPECT_NE(connection_id_i.Hash(), connection_id_j.Hash());
}
}
}
TEST_F(QuicConnectionIdTest, AssignAndCopy) {
QuicConnectionId connection_id = test::TestConnectionId(1);
QuicConnectionId connection_id2 = test::TestConnectionId(2);
connection_id = connection_id2;
EXPECT_EQ(connection_id, test::TestConnectionId(2));
EXPECT_NE(connection_id, test::TestConnectionId(1));
connection_id = QuicConnectionId(test::TestConnectionId(1));
EXPECT_EQ(connection_id, test::TestConnectionId(1));
EXPECT_NE(connection_id, test::TestConnectionId(2));
}
TEST_F(QuicConnectionIdTest, ChangeLength) {
QuicConnectionId connection_id64_1 = test::TestConnectionId(1);
QuicConnectionId connection_id64_2 = test::TestConnectionId(2);
QuicConnectionId connection_id136_2 = test::TestConnectionId(2);
connection_id136_2.set_length(17);
memset(connection_id136_2.mutable_data() + 8, 0, 9);
char connection_id136_2_bytes[17] = {0, 0, 0, 0, 0, 0, 0, 2, 0,
0, 0, 0, 0, 0, 0, 0, 0};
QuicConnectionId connection_id136_2b(connection_id136_2_bytes,
sizeof(connection_id136_2_bytes));
EXPECT_EQ(connection_id136_2, connection_id136_2b);
QuicConnectionId connection_id = connection_id64_1;
connection_id.set_length(17);
EXPECT_NE(connection_id64_1, connection_id);
connection_id.set_length(8);
EXPECT_EQ(connection_id64_1, connection_id);
connection_id.set_length(17);
memset(connection_id.mutable_data(), 0, connection_id.length());
memcpy(connection_id.mutable_data(), connection_id64_2.data(),
connection_id64_2.length());
EXPECT_EQ(connection_id136_2, connection_id);
EXPECT_EQ(connection_id136_2b, connection_id);
QuicConnectionId connection_id120(connection_id136_2_bytes, 15);
connection_id.set_length(15);
EXPECT_EQ(connection_id120, connection_id);
QuicConnectionId connection_id2 = connection_id120;
connection_id2.set_length(17);
connection_id2.mutable_data()[15] = 0;
connection_id2.mutable_data()[16] = 0;
EXPECT_EQ(connection_id136_2, connection_id2);
EXPECT_EQ(connection_id136_2b, connection_id2);
}
}
} |
281 | cpp | google/quiche | tls_server_handshaker | quiche/quic/core/tls_server_handshaker.cc | quiche/quic/core/tls_server_handshaker_test.cc | #ifndef QUICHE_QUIC_CORE_TLS_SERVER_HANDSHAKER_H_
#define QUICHE_QUIC_CORE_TLS_SERVER_HANDSHAKER_H_
#include <cstddef>
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "openssl/base.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/crypto_message_parser.h"
#include "quiche/quic/core/crypto/proof_source.h"
#include "quiche/quic/core/crypto/proof_verifier.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/tls_connection.h"
#include "quiche/quic/core/crypto/tls_server_connection.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_crypto_stream.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_time_accumulator.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/tls_handshaker.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
class QUICHE_EXPORT TlsServerHandshaker : public TlsHandshaker,
public TlsServerConnection::Delegate,
public ProofSourceHandleCallback,
public QuicCryptoServerStreamBase {
public:
TlsServerHandshaker(QuicSession* session,
const QuicCryptoServerConfig* crypto_config);
TlsServerHandshaker(const TlsServerHandshaker&) = delete;
TlsServerHandshaker& operator=(const TlsServerHandshaker&) = delete;
~TlsServerHandshaker() override;
void CancelOutstandingCallbacks() override;
bool GetBase64SHA256ClientChannelID(std::string* output) const override;
void SendServerConfigUpdate(
const CachedNetworkParameters* cached_network_params) override;
bool DisableResumption() override;
bool IsZeroRtt() const override;
bool IsResumption() const override;
bool ResumptionAttempted() const override;
bool EarlyDataAttempted() const override;
int NumServerConfigUpdateMessagesSent() const override;
const CachedNetworkParameters* PreviousCachedNetworkParams() const override;
void SetPreviousCachedNetworkParams(
CachedNetworkParameters cached_network_params) override;
void OnPacketDecrypted(EncryptionLevel level) override;
void OnOneRttPacketAcknowledged() override {}
void OnHandshakePacketSent() override {}
void OnConnectionClosed(const QuicConnectionCloseFrame& frame,
ConnectionCloseSource source) override;
void OnHandshakeDoneReceived() override;
std::string GetAddressToken(
const CachedNetworkParameters* cached_network_params) const override;
bool ValidateAddressToken(absl::string_view token) const override;
void OnNewTokenReceived(absl::string_view token) override;
bool ShouldSendExpectCTHeader() const override;
bool DidCertMatchSni() const override;
const ProofSource::Details* ProofSourceDetails() const override;
bool ExportKeyingMaterial(absl::string_view label, absl::string_view context,
size_t result_len, std::string* result) override;
SSL* GetSsl() const override;
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override;
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override;
ssl_early_data_reason_t EarlyDataReason() const override;
bool encryption_established() const override;
bool one_rtt_keys_available() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
HandshakeState GetHandshakeState() const override;
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> state) override;
size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
void SetWriteSecret(EncryptionLevel level, const SSL_CIPHER* cipher,
absl::Span<const uint8_t> write_secret) override;
virtual std::string GetAcceptChValueForHostname(
const std::string& hostname) const;
bool UseAlpsNewCodepoint() const;
ClientCertMode client_cert_mode() const {
return tls_connection_.ssl_config().client_cert_mode;
}
protected:
void InfoCallback(int type, int value) override;
virtual std::unique_ptr<ProofSourceHandle> MaybeCreateProofSourceHandle();
virtual void OverrideQuicConfigDefaults(QuicConfig* config);
virtual bool ValidateHostname(const std::string& hostname) const;
const TlsConnection* tls_connection() const override {
return &tls_connection_;
}
virtual bool ProcessAdditionalTransportParameters(
const TransportParameters& ) {
return true;
}
void AdvanceHandshakeFromCallback();
void FinishHandshake() override;
void ProcessPostHandshakeMessage() override {}
QuicAsyncStatus VerifyCertChain(
const std::vector<std::string>& certs, std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details, uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback) override;
void OnProofVerifyDetailsAvailable(
const ProofVerifyDetails& verify_details) override;
ssl_select_cert_result_t EarlySelectCertCallback(
const SSL_CLIENT_HELLO* client_hello) override;
int TlsExtServernameCallback(int* out_alert) override;
int SelectAlpn(const uint8_t** out, uint8_t* out_len, const uint8_t* in,
unsigned in_len) override;
ssl_private_key_result_t PrivateKeySign(uint8_t* out, size_t* out_len,
size_t max_out, uint16_t sig_alg,
absl::string_view in) override;
ssl_private_key_result_t PrivateKeyComplete(uint8_t* out, size_t* out_len,
size_t max_out) override;
size_t SessionTicketMaxOverhead() override;
int SessionTicketSeal(uint8_t* out, size_t* out_len, size_t max_out_len,
absl::string_view in) override;
ssl_ticket_aead_result_t SessionTicketOpen(uint8_t* out, size_t* out_len,
size_t max_out_len,
absl::string_view in) override;
ssl_ticket_aead_result_t FinalizeSessionTicketOpen(uint8_t* out,
size_t* out_len,
size_t max_out_len);
TlsConnection::Delegate* ConnectionDelegate() override { return this; }
const std::optional<QuicAsyncStatus>& select_cert_status() const {
return select_cert_status_;
}
bool HasValidSignature(size_t max_signature_size) const;
void OnSelectCertificateDone(bool ok, bool is_sync, SSLConfig ssl_config,
absl::string_view ticket_encryption_key,
bool cert_matched_sni) override;
void OnComputeSignatureDone(
bool ok, bool is_sync, std::string signature,
std::unique_ptr<ProofSource::Details> details) override;
void set_encryption_established(bool encryption_established) {
encryption_established_ = encryption_established;
}
bool WillNotCallComputeSignature() const override;
void SetIgnoreTicketOpen(bool value) { ignore_ticket_open_ = value; }
private:
class QUICHE_EXPORT DecryptCallback : public ProofSource::DecryptCallback {
public:
explicit DecryptCallback(TlsServerHandshaker* handshaker);
void Run(std::vector<uint8_t> plaintext) override;
void Cancel();
bool IsDone() const { return handshaker_ == nullptr; }
private:
TlsServerHandshaker* handshaker_;
};
class QUICHE_EXPORT DefaultProofSourceHandle : public ProofSourceHandle {
public:
DefaultProofSourceHandle(TlsServerHandshaker* handshaker,
ProofSource* proof_source);
~DefaultProofSourceHandle() override;
void CloseHandle() override;
QuicAsyncStatus SelectCertificate(
const QuicSocketAddress& server_address,
const QuicSocketAddress& client_address,
const QuicConnectionId& original_connection_id,
absl::string_view ssl_capabilities, const std::string& hostname,
absl::string_view client_hello, const std::string& alpn,
std::optional<std::string> alps,
const std::vector<uint8_t>& quic_transport_params,
const std::optional<std::vector<uint8_t>>& early_data_context,
const QuicSSLConfig& ssl_config) override;
QuicAsyncStatus ComputeSignature(const QuicSocketAddress& server_address,
const QuicSocketAddress& client_address,
const std::string& hostname,
uint16_t signature_algorithm,
absl::string_view in,
size_t max_signature_size) override;
protected:
ProofSourceHandleCallback* callback() override { return handshaker_; }
private:
class QUICHE_EXPORT DefaultSignatureCallback
: public ProofSource::SignatureCallback {
public:
explicit DefaultSignatureCallback(DefaultProofSourceHandle* handle)
: handle_(handle) {}
void Run(bool ok, std::string signature,
std::unique_ptr<ProofSource::Details> details) override {
if (handle_ == nullptr) {
return;
}
DefaultProofSourceHandle* handle = handle_;
handle_ = nullptr;
handle->signature_callback_ = nullptr;
if (handle->handshaker_ != nullptr) {
handle->handshaker_->OnComputeSignatureDone(
ok, is_sync_, std::move(signature), std::move(details));
}
}
void Cancel() { handle_ = nullptr; }
void set_is_sync(bool is_sync) { is_sync_ = is_sync; }
private:
DefaultProofSourceHandle* handle_;
bool is_sync_ = true;
};
TlsServerHandshaker* handshaker_;
ProofSource* proof_source_;
DefaultSignatureCallback* signature_callback_ = nullptr;
};
struct QUICHE_EXPORT SetTransportParametersResult {
bool success = false;
std::vector<uint8_t> quic_transport_params;
std::optional<std::vector<uint8_t>> early_data_context;
};
SetTransportParametersResult SetTransportParameters();
bool ProcessTransportParameters(const SSL_CLIENT_HELLO* client_hello,
std::string* error_details);
bool TransportParametersMatch(
absl::Span<const uint8_t> serialized_params) const;
struct QUICHE_EXPORT SetApplicationSettingsResult {
bool success = false;
std::string alps_buffer;
};
SetApplicationSettingsResult SetApplicationSettings(absl::string_view alpn);
QuicConnectionStats& connection_stats() {
return session()->connection()->mutable_stats();
}
QuicTime now() const { return session()->GetClock()->Now(); }
QuicConnectionContext* connection_context() {
return session()->connection()->context();
}
std::unique_ptr<ProofSourceHandle> proof_source_handle_;
ProofSource* proof_source_;
std::shared_ptr<DecryptCallback> ticket_decryption_callback_;
std::vector<uint8_t> decrypted_session_ticket_;
bool ticket_received_ = false;
bool early_data_attempted_ = false;
bool ignore_ticket_open_ = false;
bool alps_new_codepoint_received_ = false;
std::optional<QuicAsyncStatus> select_cert_status_;
std::string cert_verify_sig_;
std::unique_ptr<ProofSource::Details> proof_source_details_;
std::optional<QuicTimeAccumulator> async_op_timer_;
std::unique_ptr<ApplicationState> application_state_;
std::string pre_shared_key_;
std::string ticket_encryption_key_;
HandshakeState state_ = HANDSHAKE_START;
bool encryption_established_ = false;
bool valid_alpn_received_ = false;
bool can_disable_resumption_ = true;
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters>
crypto_negotiated_params_;
TlsServerConnection tls_connection_;
const QuicCryptoServerConfig* crypto_config_;
mutable std::unique_ptr<CachedNetworkParameters>
last_received_cached_network_params_;
bool cert_matched_sni_ = false;
TransportParameters server_params_;
};
}
#endif
#include "quiche/quic/core/tls_server_handshaker.h"
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "absl/status/status.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "absl/types/variant.h"
#include "openssl/base.h"
#include "openssl/bytestring.h"
#include "openssl/ssl.h"
#include "openssl/tls1.h"
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/crypto_message_parser.h"
#include "quiche/quic/core/crypto/crypto_utils.h"
#include "quiche/quic/core/crypto/proof_source.h"
#include "quiche/quic/core/crypto/proof_verifier.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/http/http_encoder.h"
#include "quiche/quic/core/http/http_frames.h"
#include "quiche/quic/core/quic_config.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_time_accumulator.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_handshaker.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_hostname_utils.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_server_stats.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#define RECORD_LATENCY_IN_US(stat_name, latency, comment) \
do { \
const int64_t latency_in_us = (latency).ToMicroseconds(); \
QUIC_DVLOG(1) << "Recording " stat_name ": " << latency_in_us; \
QUIC_SERVER_HISTOGRAM_COUNTS(stat_name, latency_in_us, 1, 10000000, 50, \
comment); \
} while (0)
namespace quic {
namespace {
uint16_t kDefaultPort = 443;
}
TlsServerHandshaker::DefaultProofSourceHandle::DefaultProofSourceHandle(
TlsServerHandshaker* handshaker, ProofSource* proof_source)
: handshaker_(handshaker), proof_source_(proof_source) {}
TlsServerHandshaker::DefaultProofSourceHandle::~DefaultProofSourceHandle() {
CloseHandle();
}
void TlsServerHandshaker::DefaultProofSourceHandle::CloseHandle() {
QUIC_DVLOG(1) << "CloseHandle. is_signature_pending="
<< (signature_callback_ != nullptr);
if (signature_callback_) {
signature_callback_->Cancel();
signature_callback_ = nullptr;
}
}
QuicAsyncStatus
TlsServerHandshaker::DefaultProofSourceHandle::SelectCertificate(
const QuicSocketAddress& server_address,
const QuicSocketAddress& client_address,
const QuicConnectionId& ,
absl::string_view , const std::string& hostname,
absl::string_view , const std::string& ,
std::optional<std::string> ,
const std::vector<uint8_t>& ,
const std::optional<std::vector<uint8_t>>& ,
const QuicSSLConfig& ) {
if (!handshaker_ || !proof_source_) {
QUIC_BUG(quic_bug_10341_1)
<< "SelectCertificate called on a detached handle";
return QUIC_FAILURE;
}
bool cert_matched_sni;
quiche::QuicheReferenceCountedPointer<ProofSource::Chain> chain =
proof_source_->GetCertChain(server_address, client_address, hostname,
&cert_matched_sni);
handshaker_->OnSelectCertificateDone(
true, true,
ProofSourceHandleCallback::LocalSSLConfig{chain.get(),
QuicDelayedSSLConfig()},
absl::string_view(), cert_matched_sni);
if (!handshaker_->select_cert_status().has_value()) {
QUIC_BUG(quic_bug_12423_1)
<< "select_cert_status() has no value after a synchronous select cert";
return QUIC_SUCCESS;
}
return *handshaker_->select_cert_status();
}
QuicAsyncStatus TlsServerHandshaker::DefaultProofSourceHandle::ComputeSignature(
const QuicSocketAddress& server_address,
const QuicSocketAddress& client_address, const std::string& hostname,
uint16_t signature_algorithm, absl::string_view in,
size_t max_signature_size) {
if (!handshaker_ || !proof_source_) {
QUIC_BUG(quic_bug_10341_2)
<< "ComputeSignature called on a detached handle";
return QUIC_FAILURE;
}
if (signature_callback_) {
QUIC_BUG(quic_bug_10341_3) << "ComputeSignature called while pending";
return QUIC_FAILURE;
}
signature_callback_ = new DefaultSignatureCallback(this);
proof_source_->ComputeTlsSignature(
server_address, client_address, hostname, signature_algorithm, in,
std::unique_ptr<DefaultSignatureCallback>(signature_callback_));
if (signature_callback_) {
QUIC_DVLOG(1) << "ComputeTlsSignature is pending";
signature_callback_->set_is_sync(false);
return QUIC_PENDING;
}
bool success = handshaker_->HasValidSignature(max_signature_size);
QUIC_DVLOG(1) << "ComputeTlsSignature completed synchronously. success:"
<< success;
return success ? QUIC_SUCCESS : QUIC_FAILURE;
}
TlsServerHandshaker::DecryptCallback::DecryptCallback(
TlsServerHandshaker* handshaker)
: handshaker_(handshaker) {}
void TlsServerHandshaker::DecryptCallback::Run(std::vector<uint8_t> plaintext) {
if (handshaker_ == nullptr) {
return;
}
TlsServerHandshaker* handshaker = handshaker_;
handshaker_ = nullptr;
handshaker->decrypted_session_ticket_ = std::move(plaintext);
const bool is_async =
(handshaker->expected_ssl_error() == SSL_ERROR_PENDING_TICKET);
std::optional<QuicConnectionContextSwitcher> context_switcher;
if (is_async) {
context_switcher.emplace(handshaker->connection_context());
}
QUIC_TRACESTRING(
absl::StrCat("TLS ticket decryption done. len(decrypted_ticket):",
handshaker->decrypted_session_ticket_.size()));
if (is_async) {
handshaker->AdvanceHandshakeFromCallback();
}
handshaker->ticket_decryption_callback_ = nullptr;
}
void TlsServerHandshaker::DecryptCallback::Cancel() {
QUICHE_DCHECK(handshaker_);
handshaker_ = nullptr;
}
TlsServerHandshaker::TlsServerHandshaker(
QuicSession* session, const QuicCryptoServerConfig* crypto_config)
: TlsHandshaker(this, session),
QuicCryptoServerStreamBase(session),
proof_source_(crypto_config->proof_source()),
pre_shared_key_(crypto_config->pre_shared_key()),
crypto_negotiated_params_(new QuicCryptoNegotiatedParameters),
tls_connection_(crypto_config->ssl_ctx(), this, session->GetSSLConfig()),
crypto_config_(crypto_config) {
QUIC_DVLOG(1) << "TlsServerHandshaker: client_cert_mode initial value: "
<< client_cert_mode();
QUICHE_DCHECK_EQ(PROTOCOL_TLS1_3,
session->connection()->version().handshake_protocol);
SSL_set_accept_state(ssl());
int use_legacy_extension = 0;
if (session->version().UsesLegacyTlsExtension()) {
use_legacy_extension = 1;
}
SSL_set_quic_use_legacy_codepoint(ssl(), use_legacy_extension);
if (session->connection()->context()->tracer) {
tls_connection_.EnableInfoCallback();
}
#if BORINGSSL_API_VERSION >= 22
if (!crypto_config->preferred_groups().empty()) {
SSL_set1_group_ids(ssl(), crypto_config->preferred_groups().data(),
crypto_config->preferred_groups().size());
}
#endif
}
TlsServerHandshaker::~TlsServerHandshaker() { CancelOutstandingCallbacks(); }
void TlsServerHandshaker::CancelOutstandingCallbacks() {
if (proof_source_handle_) {
proof_source_handle_->CloseHandle();
}
if (ticket_decryption_callback_) {
ticket_decryption_callback_->Cancel();
ticket_decryption_callback_ = nullptr;
}
}
void TlsServerHandshaker::InfoCallback(int type, int value) {
QuicConnectionTracer* tracer =
session()->connection()->context()->tracer.get();
if (tracer == nullptr) {
return;
}
if (type & SSL_CB_LOOP) {
tracer->PrintString(
absl::StrCat("SSL:ACCEPT_LOOP:", SSL_state_string_long(ssl())));
} else if (type & SSL_CB_ALERT) {
const char* prefix =
(type & SSL_CB_READ) ? "SSL:READ_ALERT:" : "SSL:WRITE_ALERT:";
tracer->PrintString(absl::StrCat(prefix, SSL_alert_type_string_long(value),
":", SSL_alert_desc_string_long(value)));
} else if (type & SSL_CB_EXIT) {
const char* prefix =
(value == 1) ? "SSL:ACCEPT_EXIT_OK:" : "SSL:ACCEPT_EXIT_FAIL:";
tracer->PrintString(absl::StrCat(prefix, SSL_state_string_long(ssl())));
} else if (type & SSL_CB_HANDSHAKE_START) {
tracer->PrintString(
absl::StrCat("SSL:HANDSHAKE_START:", SSL_state_string_long(ssl())));
} else if (type & SSL_CB_HANDSHAKE_DONE) {
tracer->PrintString(
absl::StrCat("SSL:HANDSHAKE_DONE:", SSL_state_string_long(ssl())));
} else {
QUIC_DLOG(INFO) << "Unknown event type " << type << ": "
<< SSL_state_string_long(ssl());
tracer->PrintString(
absl::StrCat("SSL:unknown:", value, ":", SSL_state_string_long(ssl())));
}
}
std::unique_ptr<ProofSourceHandle>
TlsServerHandshaker::MaybeCreateProofSourceHandle() {
return std::make_unique<DefaultProofSourceHandle>(this, proof_source_);
}
bool TlsServerHandshaker::GetBase64SHA256ClientChannelID(
std::string* ) const {
return false;
}
void TlsServerHandshaker::SendServerConfigUpdate(
const CachedNetworkParameters* ) {
}
bool TlsServerHandshaker::DisableResumption() {
if (!can_disable_resumption_ || !session()->connection()->connected()) {
return false;
}
tls_connection_.DisableTicketSupport();
return true;
}
bool TlsServerHandshaker::IsZeroRtt() const {
return SSL_early_data_accepted(ssl());
}
bool TlsServerHandshaker::IsResumption() const {
return SSL_session_reused(ssl());
}
bool TlsServerHandshaker::ResumptionAttempted() const {
return ticket_received_;
}
bool TlsServerHandshaker::EarlyDataAttempted() const {
QUIC_BUG_IF(quic_tls_early_data_attempted_too_early,
!select_cert_status_.has_value())
<< "EarlyDataAttempted must be called after EarlySelectCertCallback is "
"started";
return early_data_attempted_;
}
int TlsServerHandshaker::NumServerConfigUpdateMessagesSent() const {
return 0;
}
const CachedNetworkParameters*
TlsServerHandshaker::PreviousCachedNetworkParams() const {
return last_received_cached_network_params_.get();
}
void TlsServerHandshaker::SetPreviousCachedNetworkParams(
CachedNetworkParameters cached_network_params) {
last_received_cached_network_params_ =
std::make_unique<CachedNetworkParameters>(cached_network_params);
}
void TlsServerHandshaker::OnPacketDecrypted(EncryptionLevel level) {
if (level == ENCRYPTION_HANDSHAKE && state_ < HANDSHAKE_PROCESSED) {
state_ = HANDSHAKE_PROCESSED;
handshaker_delegate()->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
handshaker_delegate()->DiscardOldDecryptionKey(ENCRYPTION_INITIAL);
}
}
void TlsServerHandshaker::OnHandshakeDoneReceived() { QUICHE_DCHECK(false); }
void TlsServerHandshaker::OnNewTokenReceived(absl::string_view ) {
QUICHE_DCHECK(false);
}
std::string TlsServerHandshaker::GetAddressToken(
const CachedNetworkParameters* cached_network_params) const {
SourceAddressTokens empty_previous_tokens;
const QuicConnection* connection = session()->connection();
return crypto_config_->NewSourceAddressToken(
crypto_config_->source_address_token_boxer(), empty_previous_tokens,
connection->effective_peer_address().host(),
connection->random_generator(), connection->clock()->WallNow(),
cached_network_params);
}
bool TlsServerHandshaker::ValidateAddressToken(absl::string_view token) const {
SourceAddressTokens tokens;
HandshakeFailureReason reason = crypto_config_->ParseSourceAddressToken(
crypto_config_->source_address_token_boxer(), token, tokens);
if (reason != HANDSHAKE_OK) {
QUIC_DLOG(WARNING) << "Failed to parse source address token: "
<< CryptoUtils::HandshakeFailureReasonToString(reason);
return false;
}
auto cached_network_params = std::make_unique<CachedNetworkParameters>();
reason = crypto_config_->ValidateSourceAddressTokens(
tokens, session()->connection()->effective_peer_address().host(),
session()->connection()->clock()->WallNow(), cached_network_params.get());
if (reason != HANDSHAKE_OK) {
QUIC_DLOG(WARNING) << "Failed to validate source address token: "
<< CryptoUtils::HandshakeFailureReasonToString(reason);
return false;
}
last_received_cached_network_params_ = std::move(cached_network_params);
return true;
}
bool TlsServerHandshaker::ShouldSendExpectCTHeader() const { return false; }
bool TlsServerHandshaker::DidCertMatchSni() const { return cert_matched_sni_; }
const ProofSource::Details* TlsServerHandshaker::ProofSourceDetails() const {
return proof_sou | #include "quiche/quic/core/tls_server_handshaker.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/certificate_util.h"
#include "quiche/quic/core/crypto/client_proof_source.h"
#include "quiche/quic/core/crypto/proof_source.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_client_handshaker.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/failing_proof_source.h"
#include "quiche/quic/test_tools/fake_proof_source.h"
#include "quiche/quic/test_tools/fake_proof_source_handle.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_session_cache.h"
#include "quiche/quic/test_tools/test_certificates.h"
#include "quiche/quic/test_tools/test_ticket_crypter.h"
namespace quic {
class QuicConnection;
class QuicStream;
}
using testing::_;
using testing::NiceMock;
using testing::Return;
namespace quic {
namespace test {
namespace {
const char kServerHostname[] = "test.example.com";
const uint16_t kServerPort = 443;
struct TestParams {
ParsedQuicVersion version;
bool disable_resumption;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
ParsedQuicVersionToString(p.version), "_",
(p.disable_resumption ? "ResumptionDisabled" : "ResumptionEnabled"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
for (const auto& version : AllSupportedVersionsWithTls()) {
for (bool disable_resumption : {false, true}) {
params.push_back(TestParams{version, disable_resumption});
}
}
return params;
}
class TestTlsServerHandshaker : public TlsServerHandshaker {
public:
static constexpr TransportParameters::TransportParameterId
kFailHandshakeParam{0xFFEACA};
TestTlsServerHandshaker(QuicSession* session,
const QuicCryptoServerConfig* crypto_config)
: TlsServerHandshaker(session, crypto_config),
proof_source_(crypto_config->proof_source()) {
ON_CALL(*this, MaybeCreateProofSourceHandle())
.WillByDefault(testing::Invoke(
this, &TestTlsServerHandshaker::RealMaybeCreateProofSourceHandle));
ON_CALL(*this, OverrideQuicConfigDefaults(_))
.WillByDefault(testing::Invoke(
this, &TestTlsServerHandshaker::RealOverrideQuicConfigDefaults));
}
MOCK_METHOD(std::unique_ptr<ProofSourceHandle>, MaybeCreateProofSourceHandle,
(), (override));
MOCK_METHOD(void, OverrideQuicConfigDefaults, (QuicConfig * config),
(override));
void SetupProofSourceHandle(
FakeProofSourceHandle::Action select_cert_action,
FakeProofSourceHandle::Action compute_signature_action,
QuicDelayedSSLConfig dealyed_ssl_config = QuicDelayedSSLConfig()) {
EXPECT_CALL(*this, MaybeCreateProofSourceHandle())
.WillOnce(
testing::Invoke([this, select_cert_action, compute_signature_action,
dealyed_ssl_config]() {
auto handle = std::make_unique<FakeProofSourceHandle>(
proof_source_, this, select_cert_action,
compute_signature_action, dealyed_ssl_config);
fake_proof_source_handle_ = handle.get();
return handle;
}));
}
FakeProofSourceHandle* fake_proof_source_handle() {
return fake_proof_source_handle_;
}
bool received_client_cert() const { return received_client_cert_; }
using TlsServerHandshaker::AdvanceHandshake;
using TlsServerHandshaker::expected_ssl_error;
protected:
QuicAsyncStatus VerifyCertChain(
const std::vector<std::string>& certs, std::string* error_details,
std::unique_ptr<ProofVerifyDetails>* details, uint8_t* out_alert,
std::unique_ptr<ProofVerifierCallback> callback) override {
received_client_cert_ = true;
return TlsServerHandshaker::VerifyCertChain(certs, error_details, details,
out_alert, std::move(callback));
}
bool ProcessAdditionalTransportParameters(
const TransportParameters& params) override {
return !params.custom_parameters.contains(kFailHandshakeParam);
}
private:
std::unique_ptr<ProofSourceHandle> RealMaybeCreateProofSourceHandle() {
return TlsServerHandshaker::MaybeCreateProofSourceHandle();
}
void RealOverrideQuicConfigDefaults(QuicConfig* config) {
return TlsServerHandshaker::OverrideQuicConfigDefaults(config);
}
FakeProofSourceHandle* fake_proof_source_handle_ = nullptr;
ProofSource* proof_source_ = nullptr;
bool received_client_cert_ = false;
};
class TlsServerHandshakerTestSession : public TestQuicSpdyServerSession {
public:
using TestQuicSpdyServerSession::TestQuicSpdyServerSession;
std::unique_ptr<QuicCryptoServerStreamBase> CreateQuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* ) override {
if (connection()->version().handshake_protocol == PROTOCOL_TLS1_3) {
return std::make_unique<NiceMock<TestTlsServerHandshaker>>(this,
crypto_config);
}
QUICHE_CHECK(false) << "Unsupported handshake protocol: "
<< connection()->version().handshake_protocol;
return nullptr;
}
};
class TlsServerHandshakerTest : public QuicTestWithParam<TestParams> {
public:
TlsServerHandshakerTest()
: server_compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
server_id_(kServerHostname, kServerPort, false),
supported_versions_({GetParam().version}) {
SetQuicFlag(quic_disable_server_tls_resumption,
GetParam().disable_resumption);
client_crypto_config_ = std::make_unique<QuicCryptoClientConfig>(
crypto_test_utils::ProofVerifierForTesting(),
std::make_unique<test::SimpleSessionCache>());
InitializeServerConfig();
InitializeServer();
InitializeFakeClient();
}
~TlsServerHandshakerTest() override {
server_session_.reset();
client_session_.reset();
helpers_.clear();
alarm_factories_.clear();
}
void InitializeServerConfig() {
auto ticket_crypter = std::make_unique<TestTicketCrypter>();
ticket_crypter_ = ticket_crypter.get();
auto proof_source = std::make_unique<FakeProofSource>();
proof_source_ = proof_source.get();
proof_source_->SetTicketCrypter(std::move(ticket_crypter));
server_crypto_config_ = std::make_unique<QuicCryptoServerConfig>(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
std::move(proof_source), KeyExchangeSource::Default());
}
void InitializeServerConfigWithFailingProofSource() {
server_crypto_config_ = std::make_unique<QuicCryptoServerConfig>(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
std::make_unique<FailingProofSource>(), KeyExchangeSource::Default());
}
void CreateTlsServerHandshakerTestSession(MockQuicConnectionHelper* helper,
MockAlarmFactory* alarm_factory) {
server_connection_ = new PacketSavingConnection(
helper, alarm_factory, Perspective::IS_SERVER,
ParsedVersionOfIndex(supported_versions_, 0));
TlsServerHandshakerTestSession* server_session =
new TlsServerHandshakerTestSession(
server_connection_, DefaultQuicConfig(), supported_versions_,
server_crypto_config_.get(), &server_compressed_certs_cache_);
server_session->set_client_cert_mode(initial_client_cert_mode_);
server_session->Initialize();
server_connection_->AdvanceTime(QuicTime::Delta::FromSeconds(100000));
QUICHE_CHECK(server_session);
server_session_.reset(server_session);
}
void InitializeServerWithFakeProofSourceHandle() {
helpers_.push_back(std::make_unique<NiceMock<MockQuicConnectionHelper>>());
alarm_factories_.push_back(std::make_unique<MockAlarmFactory>());
CreateTlsServerHandshakerTestSession(helpers_.back().get(),
alarm_factories_.back().get());
server_handshaker_ = static_cast<NiceMock<TestTlsServerHandshaker>*>(
server_session_->GetMutableCryptoStream());
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.Times(testing::AnyNumber());
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillRepeatedly([this](const std::vector<absl::string_view>& alpns) {
return std::find(
alpns.cbegin(), alpns.cend(),
AlpnForVersion(server_session_->connection()->version()));
});
crypto_test_utils::SetupCryptoServerConfigForTest(
server_connection_->clock(), server_connection_->random_generator(),
server_crypto_config_.get());
}
void InitializeServer() {
TestQuicSpdyServerSession* server_session = nullptr;
helpers_.push_back(std::make_unique<NiceMock<MockQuicConnectionHelper>>());
alarm_factories_.push_back(std::make_unique<MockAlarmFactory>());
CreateServerSessionForTest(
server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_,
helpers_.back().get(), alarm_factories_.back().get(),
server_crypto_config_.get(), &server_compressed_certs_cache_,
&server_connection_, &server_session);
QUICHE_CHECK(server_session);
server_session_.reset(server_session);
server_handshaker_ = nullptr;
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.Times(testing::AnyNumber());
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillRepeatedly([this](const std::vector<absl::string_view>& alpns) {
return std::find(
alpns.cbegin(), alpns.cend(),
AlpnForVersion(server_session_->connection()->version()));
});
crypto_test_utils::SetupCryptoServerConfigForTest(
server_connection_->clock(), server_connection_->random_generator(),
server_crypto_config_.get());
}
QuicCryptoServerStreamBase* server_stream() {
return server_session_->GetMutableCryptoStream();
}
QuicCryptoClientStream* client_stream() {
return client_session_->GetMutableCryptoStream();
}
void InitializeFakeClient() {
TestQuicSpdyClientSession* client_session = nullptr;
helpers_.push_back(std::make_unique<NiceMock<MockQuicConnectionHelper>>());
alarm_factories_.push_back(std::make_unique<MockAlarmFactory>());
CreateClientSessionForTest(
server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_,
helpers_.back().get(), alarm_factories_.back().get(),
client_crypto_config_.get(), &client_connection_, &client_session);
const std::string default_alpn =
AlpnForVersion(client_connection_->version());
ON_CALL(*client_session, GetAlpnsToOffer())
.WillByDefault(Return(std::vector<std::string>({default_alpn})));
QUICHE_CHECK(client_session);
client_session_.reset(client_session);
moved_messages_counts_ = {0, 0};
}
void CompleteCryptoHandshake() {
while (!client_stream()->one_rtt_keys_available() ||
!server_stream()->one_rtt_keys_available()) {
auto previous_moved_messages_counts = moved_messages_counts_;
AdvanceHandshakeWithFakeClient();
ASSERT_NE(previous_moved_messages_counts, moved_messages_counts_);
}
}
void AdvanceHandshakeWithFakeClient() {
QUICHE_CHECK(server_connection_);
QUICHE_CHECK(client_session_ != nullptr);
EXPECT_CALL(*client_session_, OnProofValid(_)).Times(testing::AnyNumber());
EXPECT_CALL(*client_session_, OnProofVerifyDetailsAvailable(_))
.Times(testing::AnyNumber());
EXPECT_CALL(*client_connection_, OnCanWrite()).Times(testing::AnyNumber());
EXPECT_CALL(*server_connection_, OnCanWrite()).Times(testing::AnyNumber());
if (moved_messages_counts_.first == 0) {
client_stream()->CryptoConnect();
}
moved_messages_counts_ = crypto_test_utils::AdvanceHandshake(
client_connection_, client_stream(), moved_messages_counts_.first,
server_connection_, server_stream(), moved_messages_counts_.second);
}
void ExpectHandshakeSuccessful() {
EXPECT_TRUE(client_stream()->one_rtt_keys_available());
EXPECT_TRUE(client_stream()->encryption_established());
EXPECT_TRUE(server_stream()->one_rtt_keys_available());
EXPECT_TRUE(server_stream()->encryption_established());
EXPECT_EQ(HANDSHAKE_COMPLETE, client_stream()->GetHandshakeState());
EXPECT_EQ(HANDSHAKE_CONFIRMED, server_stream()->GetHandshakeState());
const auto& client_crypto_params =
client_stream()->crypto_negotiated_params();
const auto& server_crypto_params =
server_stream()->crypto_negotiated_params();
EXPECT_NE(0, client_crypto_params.cipher_suite);
EXPECT_NE(0, client_crypto_params.key_exchange_group);
EXPECT_NE(0, client_crypto_params.peer_signature_algorithm);
EXPECT_EQ(client_crypto_params.cipher_suite,
server_crypto_params.cipher_suite);
EXPECT_EQ(client_crypto_params.key_exchange_group,
server_crypto_params.key_exchange_group);
EXPECT_EQ(0, server_crypto_params.peer_signature_algorithm);
}
FakeProofSourceHandle::SelectCertArgs last_select_cert_args() const {
QUICHE_CHECK(server_handshaker_ &&
server_handshaker_->fake_proof_source_handle());
QUICHE_CHECK(!server_handshaker_->fake_proof_source_handle()
->all_select_cert_args()
.empty());
return server_handshaker_->fake_proof_source_handle()
->all_select_cert_args()
.back();
}
FakeProofSourceHandle::ComputeSignatureArgs last_compute_signature_args()
const {
QUICHE_CHECK(server_handshaker_ &&
server_handshaker_->fake_proof_source_handle());
QUICHE_CHECK(!server_handshaker_->fake_proof_source_handle()
->all_compute_signature_args()
.empty());
return server_handshaker_->fake_proof_source_handle()
->all_compute_signature_args()
.back();
}
protected:
bool SetupClientCert() {
auto client_proof_source = std::make_unique<DefaultClientProofSource>();
CertificatePrivateKey client_cert_key(
MakeKeyPairForSelfSignedCertificate());
CertificateOptions options;
options.subject = "CN=subject";
options.serial_number = 0x12345678;
options.validity_start = {2020, 1, 1, 0, 0, 0};
options.validity_end = {2049, 12, 31, 0, 0, 0};
std::string der_cert =
CreateSelfSignedCertificate(*client_cert_key.private_key(), options);
quiche::QuicheReferenceCountedPointer<ClientProofSource::Chain>
client_cert_chain(new ClientProofSource::Chain({der_cert}));
if (!client_proof_source->AddCertAndKey({"*"}, client_cert_chain,
std::move(client_cert_key))) {
return false;
}
client_crypto_config_->set_proof_source(std::move(client_proof_source));
return true;
}
std::vector<std::unique_ptr<MockQuicConnectionHelper>> helpers_;
std::vector<std::unique_ptr<MockAlarmFactory>> alarm_factories_;
PacketSavingConnection* server_connection_;
std::unique_ptr<TestQuicSpdyServerSession> server_session_;
NiceMock<TestTlsServerHandshaker>* server_handshaker_ = nullptr;
TestTicketCrypter* ticket_crypter_;
FakeProofSource* proof_source_;
std::unique_ptr<QuicCryptoServerConfig> server_crypto_config_;
QuicCompressedCertsCache server_compressed_certs_cache_;
QuicServerId server_id_;
ClientCertMode initial_client_cert_mode_ = ClientCertMode::kNone;
PacketSavingConnection* client_connection_;
std::unique_ptr<QuicCryptoClientConfig> client_crypto_config_;
std::unique_ptr<TestQuicSpdyClientSession> client_session_;
crypto_test_utils::FakeClientOptions client_options_;
std::pair<size_t, size_t> moved_messages_counts_ = {0, 0};
ParsedQuicVersionVector supported_versions_;
};
INSTANTIATE_TEST_SUITE_P(TlsServerHandshakerTests, TlsServerHandshakerTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(TlsServerHandshakerTest, NotInitiallyConected) {
EXPECT_FALSE(server_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
}
TEST_P(TlsServerHandshakerTest, ConnectedAfterTlsHandshake) {
CompleteCryptoHandshake();
EXPECT_EQ(PROTOCOL_TLS1_3, server_stream()->handshake_protocol());
ExpectHandshakeSuccessful();
}
TEST_P(TlsServerHandshakerTest, HandshakeWithAsyncSelectCertSuccess) {
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_ASYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
AdvanceHandshakeWithFakeClient();
ASSERT_TRUE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
server_handshaker_->fake_proof_source_handle()->CompletePendingOperation();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
}
TEST_P(TlsServerHandshakerTest, HandshakeWithAsyncSelectCertFailure) {
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::FAIL_ASYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
AdvanceHandshakeWithFakeClient();
ASSERT_TRUE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
server_handshaker_->fake_proof_source_handle()->CompletePendingOperation();
EXPECT_EQ(moved_messages_counts_.second, 0u);
}
TEST_P(TlsServerHandshakerTest, HandshakeWithAsyncSelectCertAndSignature) {
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_ASYNC,
FakeProofSourceHandle::Action::
DELEGATE_ASYNC);
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
AdvanceHandshakeWithFakeClient();
ASSERT_TRUE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
EXPECT_EQ(server_handshaker_->expected_ssl_error(),
SSL_ERROR_PENDING_CERTIFICATE);
server_handshaker_->fake_proof_source_handle()->CompletePendingOperation();
ASSERT_TRUE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
EXPECT_EQ(server_handshaker_->expected_ssl_error(),
SSL_ERROR_WANT_PRIVATE_KEY_OPERATION);
server_handshaker_->fake_proof_source_handle()->CompletePendingOperation();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
}
TEST_P(TlsServerHandshakerTest, HandshakeWithAsyncSignature) {
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
proof_source_->Activate();
AdvanceHandshakeWithFakeClient();
ASSERT_EQ(proof_source_->NumPendingCallbacks(), 1);
proof_source_->InvokePendingCallback(0);
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
}
TEST_P(TlsServerHandshakerTest, CancelPendingSelectCert) {
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_ASYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
AdvanceHandshakeWithFakeClient();
ASSERT_TRUE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
server_handshaker_->CancelOutstandingCallbacks();
ASSERT_FALSE(
server_handshaker_->fake_proof_source_handle()->HasPendingOperation());
server_handshaker_->fake_proof_source_handle()->CompletePendingOperation();
}
TEST_P(TlsServerHandshakerTest, CancelPendingSignature) {
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
proof_source_->Activate();
AdvanceHandshakeWithFakeClient();
ASSERT_EQ(proof_source_->NumPendingCallbacks(), 1);
server_session_ = nullptr;
proof_source_->InvokePendingCallback(0);
}
TEST_P(TlsServerHandshakerTest, ExtractSNI) {
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_EQ(server_stream()->crypto_negotiated_params().sni,
"test.example.com");
}
TEST_P(TlsServerHandshakerTest, ServerConnectionIdPassedToSelectCert) {
InitializeServerWithFakeProofSourceHandle();
server_session_->set_early_data_enabled(false);
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_SYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_EQ(last_select_cert_args().original_connection_id, TestConnectionId());
}
TEST_P(TlsServerHandshakerTest, HostnameForCertSelectionAndComputeSignature) {
server_id_ = QuicServerId("tEsT.EXAMPLE.CoM", kServerPort, false);
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_SYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_EQ(server_stream()->crypto_negotiated_params().sni,
"test.example.com");
EXPECT_EQ(last_select_cert_args().hostname, "test.example.com");
EXPECT_EQ(last_compute_signature_args().hostname, "test.example.com");
}
TEST_P(TlsServerHandshakerTest, SSLConfigForCertSelection) {
InitializeServerWithFakeProofSourceHandle();
server_session_->set_early_data_enabled(false);
server_handshaker_->SetupProofSourceHandle(
FakeProofSourceHandle::Action::DELEGATE_SYNC,
FakeProofSourceHandle::Action::
DELEGATE_SYNC);
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_FALSE(last_select_cert_args().ssl_config.early_data_enabled);
}
TEST_P(TlsServerHandshakerTest, ConnectionClosedOnTlsError) {
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_HANDSHAKE_FAILED, _, _, _));
char bogus_handshake_message[] = {
1,
0, 0, 0,
};
QuicConnection::ScopedPacketFlusher flusher(server_connection_);
server_stream()->crypto_message_parser()->ProcessInput(
absl::string_view(bogus_handshake_message,
ABSL_ARRAYSIZE(bogus_handshake_message)),
ENCRYPTION_INITIAL);
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
}
TEST_P(TlsServerHandshakerTest, ClientSendingBadALPN) {
const std::string kTestBadClientAlpn = "bad-client-alpn";
EXPECT_CALL(*client_session_, GetAlpnsToOffer())
.WillOnce(Return(std::vector<std::string>({kTestBadClientAlpn})));
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_HANDSHAKE_FAILED,
static_cast<QuicIetfTransportErrorCodes>(
CRYPTO_ERROR_FIRST + 120),
"TLS handshake failure (ENCRYPTION_INITIAL) 120: "
"no application protocol",
_));
AdvanceHandshakeWithFakeClient();
EXPECT_FALSE(client_stream()->one_rtt_keys_available());
EXPECT_FALSE(client_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
EXPECT_FALSE(server_stream()->encryption_established());
}
TEST_P(TlsServerHandshakerTest, CustomALPNNegotiation) {
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
EXPECT_CALL(*server_connection_, CloseConnection(_, _, _)).Times(0);
const std::string kTestAlpn = "A Custom ALPN Value";
const std::vector<std::string> kTestAlpns(
{"foo", "bar", kTestAlpn, "something else"});
EXPECT_CALL(*client_session_, GetAlpnsToOffer())
.WillRepeatedly(Return(kTestAlpns));
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillOnce(
[kTestAlpn, kTestAlpns](const std::vector<absl::string_view>& alpns) {
EXPECT_THAT(alpns, testing::ElementsAreArray(kTestAlpns));
return std::find(alpns.cbegin(), alpns.cend(), kTestAlpn);
});
EXPECT_CALL(*client_session_, OnAlpnSelected(absl::string_view(kTestAlpn)));
EXPECT_CALL(*server_session_, OnAlpnSelected(absl::string_view(kTestAlpn)));
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
}
TEST_P(TlsServerHandshakerTest, RejectInvalidSNI) {
server_id_ = QuicServerId("invalid!.example.com", kServerPort, false);
InitializeFakeClient();
static_cast<TlsClientHandshaker*>(
QuicCryptoClientStreamPeer::GetHandshaker(client_stream()))
->AllowInvalidSNIForTests();
AdvanceHandshakeWithFakeClient();
EXPECT_FALSE(server_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
}
TEST_P(TlsServerHandshakerTest, Resumption) {
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_FALSE(client_stream()->IsResumption());
EXPECT_FALSE(server_stream()->IsResumption());
EXPECT_FALSE(server_stream()->ResumptionAttempted());
InitializeServer();
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_NE(client_stream()->IsResumption(), GetParam().disable_resumption);
EXPECT_NE(server_stream()->IsResumption(), GetParam().disable_resumption);
EXPECT_NE(server_stream()->ResumptionAttempted(),
GetParam().disable_resumption);
}
TEST_P(TlsServerHandshakerTest, ResumptionWithAsyncDecryptCallback) {
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
ticket_crypter_->SetRunCallbacksAsync(true);
InitializeServer();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
if (GetParam().disable_resumption) {
ASSERT_EQ(ticket_crypter_->NumPendingCallbacks(), 0u);
return;
}
ASSERT_EQ(ticket_crypter_->NumPendingCallbacks(), 1u);
ticket_crypter_->RunPendingCallback(0);
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_TRUE(client_stream()->IsResumption());
EXPECT_TRUE(server_stream()->IsResumption());
EXPECT_TRUE(server_stream()->ResumptionAttempted());
}
TEST_P(TlsServerHandshakerTest, ResumptionWithPlaceholderTicket) {
InitializeFakeClient();
ticket_crypter_->set_fail_encrypt(true);
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_FALSE(client_stream()->IsResumption());
EXPECT_FALSE(server_stream()->IsResumption());
EXPECT_FALSE(server_stream()->ResumptionAttempted());
InitializeServer();
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
EXPECT_FALSE(client_stream()->IsResumption());
EXPECT_FALSE(server_stream()->IsResumption());
EXPECT_NE(server_stream()->ResumptionAttempted(),
GetParam().disable_resumption);
}
TEST_P(TlsServerHandshakerTest, AdvanceHandshakeDuringAsyncDecryptCallback) {
if (GetParam().disable_resumption) {
return;
}
InitializeFakeClient();
CompleteCryptoHandshake();
ExpectHandshakeSuccessful();
ticket_crypter_->SetRunCallbacksAsync(true);
InitializeServerWithFakeProofSourceHandle();
server_handshaker_->SetupProofSourceHandle(
FakeProofSou |
282 | cpp | google/quiche | quic_crypto_server_stream | quiche/quic/core/quic_crypto_server_stream.cc | quiche/quic/core/quic_crypto_server_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CRYPTO_SERVER_STREAM_H_
#define QUICHE_QUIC_CORE_QUIC_CRYPTO_SERVER_STREAM_H_
#include <string>
#include "quiche/quic/core/proto/cached_network_parameters_proto.h"
#include "quiche/quic/core/proto/source_address_token_proto.h"
#include "quiche/quic/core/quic_crypto_handshaker.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicCryptoServerStreamPeer;
}
class QUICHE_EXPORT QuicCryptoServerStream : public QuicCryptoServerStreamBase,
public QuicCryptoHandshaker {
public:
QuicCryptoServerStream(const QuicCryptoServerStream&) = delete;
QuicCryptoServerStream& operator=(const QuicCryptoServerStream&) = delete;
~QuicCryptoServerStream() override;
void CancelOutstandingCallbacks() override;
bool GetBase64SHA256ClientChannelID(std::string* output) const override;
void SendServerConfigUpdate(
const CachedNetworkParameters* cached_network_params) override;
bool DisableResumption() override;
bool IsZeroRtt() const override;
bool IsResumption() const override;
bool ResumptionAttempted() const override;
bool EarlyDataAttempted() const override;
int NumServerConfigUpdateMessagesSent() const override;
const CachedNetworkParameters* PreviousCachedNetworkParams() const override;
void SetPreviousCachedNetworkParams(
CachedNetworkParameters cached_network_params) override;
void OnPacketDecrypted(EncryptionLevel level) override;
void OnOneRttPacketAcknowledged() override {}
void OnHandshakePacketSent() override {}
void OnConnectionClosed(const QuicConnectionCloseFrame& ,
ConnectionCloseSource ) override {}
void OnHandshakeDoneReceived() override;
void OnNewTokenReceived(absl::string_view token) override;
std::string GetAddressToken(
const CachedNetworkParameters* ) const override;
bool ValidateAddressToken(absl::string_view token) const override;
bool ShouldSendExpectCTHeader() const override;
bool DidCertMatchSni() const override;
const ProofSource::Details* ProofSourceDetails() const override;
ssl_early_data_reason_t EarlyDataReason() const override;
bool encryption_established() const override;
bool one_rtt_keys_available() const override;
const QuicCryptoNegotiatedParameters& crypto_negotiated_params()
const override;
CryptoMessageParser* crypto_message_parser() override;
HandshakeState GetHandshakeState() const override;
void SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> state) override;
size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
std::unique_ptr<QuicDecrypter> AdvanceKeysAndCreateCurrentOneRttDecrypter()
override;
std::unique_ptr<QuicEncrypter> CreateCurrentOneRttEncrypter() override;
SSL* GetSsl() const override;
bool IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel level) const override;
EncryptionLevel GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const override;
void OnHandshakeMessage(const CryptoHandshakeMessage& message) override;
protected:
QUICHE_EXPORT friend std::unique_ptr<QuicCryptoServerStreamBase>
CreateCryptoServerStream(const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSession* session,
QuicCryptoServerStreamBase::Helper* helper);
QuicCryptoServerStream(const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache,
QuicSession* session,
QuicCryptoServerStreamBase::Helper* helper);
virtual void ProcessClientHello(
quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>
result,
std::unique_ptr<ProofSource::Details> proof_source_details,
std::shared_ptr<ProcessClientHelloResultCallback> done_cb);
virtual void OverrideQuicConfigDefaults(QuicConfig* config);
virtual const QuicSocketAddress GetClientAddress();
QuicSession* session() const { return session_; }
void set_encryption_established(bool encryption_established) {
encryption_established_ = encryption_established;
}
void set_one_rtt_keys_available(bool one_rtt_keys_available) {
one_rtt_keys_available_ = one_rtt_keys_available;
}
private:
friend class test::QuicCryptoServerStreamPeer;
class QUICHE_EXPORT ValidateCallback
: public ValidateClientHelloResultCallback {
public:
explicit ValidateCallback(QuicCryptoServerStream* parent);
ValidateCallback(const ValidateCallback&) = delete;
ValidateCallback& operator=(const ValidateCallback&) = delete;
void Cancel();
void Run(quiche::QuicheReferenceCountedPointer<Result> result,
std::unique_ptr<ProofSource::Details> details) override;
private:
QuicCryptoServerStream* parent_;
};
class SendServerConfigUpdateCallback
: public BuildServerConfigUpdateMessageResultCallback {
public:
explicit SendServerConfigUpdateCallback(QuicCryptoServerStream* parent);
SendServerConfigUpdateCallback(const SendServerConfigUpdateCallback&) =
delete;
void operator=(const SendServerConfigUpdateCallback&) = delete;
void Cancel();
void Run(bool ok, const CryptoHandshakeMessage& message) override;
private:
QuicCryptoServerStream* parent_;
};
void FinishProcessingHandshakeMessage(
quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>
result,
std::unique_ptr<ProofSource::Details> details);
class ProcessClientHelloCallback;
friend class ProcessClientHelloCallback;
void FinishProcessingHandshakeMessageAfterProcessClientHello(
const ValidateClientHelloResultCallback::Result& result,
QuicErrorCode error, const std::string& error_details,
std::unique_ptr<CryptoHandshakeMessage> reply,
std::unique_ptr<DiversificationNonce> diversification_nonce,
std::unique_ptr<ProofSource::Details> proof_source_details);
void FinishSendServerConfigUpdate(bool ok,
const CryptoHandshakeMessage& message);
QuicTransportVersion transport_version() const {
return session_->transport_version();
}
QuicSession* session_;
HandshakerDelegateInterface* delegate_;
const QuicCryptoServerConfig* crypto_config_;
QuicCompressedCertsCache* compressed_certs_cache_;
quiche::QuicheReferenceCountedPointer<QuicSignedServerConfig> signed_config_;
std::string chlo_hash_;
QuicCryptoServerStreamBase::Helper* helper_;
uint8_t num_handshake_messages_;
uint8_t num_handshake_messages_with_server_nonces_;
SendServerConfigUpdateCallback* send_server_config_update_cb_;
int num_server_config_update_messages_sent_;
std::unique_ptr<CachedNetworkParameters> previous_cached_network_params_;
SourceAddressTokens previous_source_address_tokens_;
bool zero_rtt_attempted_;
QuicByteCount chlo_packet_size_;
ValidateCallback* validate_client_hello_cb_;
std::weak_ptr<ProcessClientHelloCallback> process_client_hello_cb_;
std::unique_ptr<ProofSource::Details> proof_source_details_;
bool encryption_established_;
bool one_rtt_keys_available_;
bool one_rtt_packet_decrypted_;
quiche::QuicheReferenceCountedPointer<QuicCryptoNegotiatedParameters>
crypto_negotiated_params_;
};
}
#endif
#include "quiche/quic/core/quic_crypto_server_stream.h"
#include <memory>
#include <string>
#include <utility>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "openssl/sha.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_testvalue.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/quiche_text_utils.h"
namespace quic {
class QuicCryptoServerStream::ProcessClientHelloCallback
: public ProcessClientHelloResultCallback {
public:
ProcessClientHelloCallback(
QuicCryptoServerStream* parent,
const quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>& result)
: parent_(parent), result_(result) {}
void Run(
QuicErrorCode error, const std::string& error_details,
std::unique_ptr<CryptoHandshakeMessage> message,
std::unique_ptr<DiversificationNonce> diversification_nonce,
std::unique_ptr<ProofSource::Details> proof_source_details) override {
if (parent_ == nullptr) {
return;
}
parent_->FinishProcessingHandshakeMessageAfterProcessClientHello(
*result_, error, error_details, std::move(message),
std::move(diversification_nonce), std::move(proof_source_details));
}
void Cancel() { parent_ = nullptr; }
private:
QuicCryptoServerStream* parent_;
quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>
result_;
};
QuicCryptoServerStream::QuicCryptoServerStream(
const QuicCryptoServerConfig* crypto_config,
QuicCompressedCertsCache* compressed_certs_cache, QuicSession* session,
QuicCryptoServerStreamBase::Helper* helper)
: QuicCryptoServerStreamBase(session),
QuicCryptoHandshaker(this, session),
session_(session),
delegate_(session),
crypto_config_(crypto_config),
compressed_certs_cache_(compressed_certs_cache),
signed_config_(new QuicSignedServerConfig),
helper_(helper),
num_handshake_messages_(0),
num_handshake_messages_with_server_nonces_(0),
send_server_config_update_cb_(nullptr),
num_server_config_update_messages_sent_(0),
zero_rtt_attempted_(false),
chlo_packet_size_(0),
validate_client_hello_cb_(nullptr),
encryption_established_(false),
one_rtt_keys_available_(false),
one_rtt_packet_decrypted_(false),
crypto_negotiated_params_(new QuicCryptoNegotiatedParameters) {}
QuicCryptoServerStream::~QuicCryptoServerStream() {
CancelOutstandingCallbacks();
}
void QuicCryptoServerStream::CancelOutstandingCallbacks() {
if (validate_client_hello_cb_ != nullptr) {
validate_client_hello_cb_->Cancel();
validate_client_hello_cb_ = nullptr;
}
if (send_server_config_update_cb_ != nullptr) {
send_server_config_update_cb_->Cancel();
send_server_config_update_cb_ = nullptr;
}
if (std::shared_ptr<ProcessClientHelloCallback> cb =
process_client_hello_cb_.lock()) {
cb->Cancel();
process_client_hello_cb_.reset();
}
}
void QuicCryptoServerStream::OnHandshakeMessage(
const CryptoHandshakeMessage& message) {
QuicCryptoHandshaker::OnHandshakeMessage(message);
++num_handshake_messages_;
chlo_packet_size_ = session()->connection()->GetCurrentPacket().length();
if (one_rtt_keys_available_) {
OnUnrecoverableError(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE,
"Unexpected handshake message from client");
return;
}
if (message.tag() != kCHLO) {
OnUnrecoverableError(QUIC_INVALID_CRYPTO_MESSAGE_TYPE,
"Handshake packet not CHLO");
return;
}
if (validate_client_hello_cb_ != nullptr ||
!process_client_hello_cb_.expired()) {
OnUnrecoverableError(QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO,
"Unexpected handshake message while processing CHLO");
return;
}
chlo_hash_ =
CryptoUtils::HashHandshakeMessage(message, Perspective::IS_SERVER);
std::unique_ptr<ValidateCallback> cb(new ValidateCallback(this));
QUICHE_DCHECK(validate_client_hello_cb_ == nullptr);
QUICHE_DCHECK(process_client_hello_cb_.expired());
validate_client_hello_cb_ = cb.get();
crypto_config_->ValidateClientHello(
message, GetClientAddress(), session()->connection()->self_address(),
transport_version(), session()->connection()->clock(), signed_config_,
std::move(cb));
}
void QuicCryptoServerStream::FinishProcessingHandshakeMessage(
quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>
result,
std::unique_ptr<ProofSource::Details> details) {
QUICHE_DCHECK(validate_client_hello_cb_ != nullptr);
QUICHE_DCHECK(process_client_hello_cb_.expired());
validate_client_hello_cb_ = nullptr;
auto cb = std::make_shared<ProcessClientHelloCallback>(this, result);
process_client_hello_cb_ = cb;
ProcessClientHello(result, std::move(details), std::move(cb));
}
void QuicCryptoServerStream::
FinishProcessingHandshakeMessageAfterProcessClientHello(
const ValidateClientHelloResultCallback::Result& result,
QuicErrorCode error, const std::string& error_details,
std::unique_ptr<CryptoHandshakeMessage> reply,
std::unique_ptr<DiversificationNonce> diversification_nonce,
std::unique_ptr<ProofSource::Details> proof_source_details) {
QUICHE_DCHECK(!process_client_hello_cb_.expired());
QUICHE_DCHECK(validate_client_hello_cb_ == nullptr);
process_client_hello_cb_.reset();
proof_source_details_ = std::move(proof_source_details);
AdjustTestValue("quic::QuicCryptoServerStream::after_process_client_hello",
session());
if (!session()->connection()->connected()) {
QUIC_CODE_COUNT(quic_crypto_disconnected_after_process_client_hello);
QUIC_LOG_FIRST_N(INFO, 10)
<< "After processing CHLO, QUIC connection has been closed with code "
<< session()->error() << ", details: " << session()->error_details();
return;
}
const CryptoHandshakeMessage& message = result.client_hello;
if (error != QUIC_NO_ERROR) {
OnUnrecoverableError(error, error_details);
return;
}
if (reply->tag() != kSHLO) {
session()->connection()->set_fully_pad_crypto_handshake_packets(
crypto_config_->pad_rej());
SendHandshakeMessage(*reply, ENCRYPTION_INITIAL);
return;
}
QuicConfig* config = session()->config();
OverrideQuicConfigDefaults(config);
std::string process_error_details;
const QuicErrorCode process_error =
config->ProcessPeerHello(message, CLIENT, &process_error_details);
if (process_error != QUIC_NO_ERROR) {
OnUnrecoverableError(process_error, process_error_details);
return;
}
session()->OnConfigNegotiated();
config->ToHandshakeMessage(reply.get(), session()->transport_version());
delegate_->OnNewEncryptionKeyAvailable(
ENCRYPTION_ZERO_RTT,
std::move(crypto_negotiated_params_->initial_crypters.encrypter));
delegate_->OnNewDecryptionKeyAvailable(
ENCRYPTION_ZERO_RTT,
std::move(crypto_negotiated_params_->initial_crypters.decrypter),
false,
false);
delegate_->SetDefaultEncryptionLevel(ENCRYPTION_ZERO_RTT);
delegate_->DiscardOldDecryptionKey(ENCRYPTION_INITIAL);
session()->connection()->SetDiversificationNonce(*diversification_nonce);
session()->connection()->set_fully_pad_crypto_handshake_packets(
crypto_config_->pad_shlo());
SendHandshakeMessage(*reply, ENCRYPTION_ZERO_RTT);
delegate_->OnNewEncryptionKeyAvailable(
ENCRYPTION_FORWARD_SECURE,
std::move(crypto_negotiated_params_->forward_secure_crypters.encrypter));
delegate_->OnNewDecryptionKeyAvailable(
ENCRYPTION_FORWARD_SECURE,
std::move(crypto_negotiated_params_->forward_secure_crypters.decrypter),
true,
false);
encryption_established_ = true;
one_rtt_keys_available_ = true;
delegate_->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
delegate_->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
}
void QuicCryptoServerStream::SendServerConfigUpdate(
const CachedNetworkParameters* cached_network_params) {
if (!one_rtt_keys_available_) {
return;
}
if (send_server_config_update_cb_ != nullptr) {
QUIC_DVLOG(1)
<< "Skipped server config update since one is already in progress";
return;
}
std::unique_ptr<SendServerConfigUpdateCallback> cb(
new SendServerConfigUpdateCallback(this));
send_server_config_update_cb_ = cb.get();
crypto_config_->BuildServerConfigUpdateMessage(
session()->transport_version(), chlo_hash_,
previous_source_address_tokens_, session()->connection()->self_address(),
GetClientAddress(), session()->connection()->clock(),
session()->connection()->random_generator(), compressed_certs_cache_,
*crypto_negotiated_params_, cached_network_params, std::move(cb));
}
QuicCryptoServerStream::SendServerConfigUpdateCallback::
SendServerConfigUpdateCallback(QuicCryptoServerStream* parent)
: parent_(parent) {}
void QuicCryptoServerStream::SendServerConfigUpdateCallback::Cancel() {
parent_ = nullptr;
}
void QuicCryptoServerStream::SendServerConfigUpdateCallback::Run(
bool ok, const CryptoHandshakeMessage& message) {
if (parent_ == nullptr) {
return;
}
parent_->FinishSendServerConfigUpdate(ok, message);
}
void QuicCryptoServerStream::FinishSendServerConfigUpdate(
bool ok, const CryptoHandshakeMessage& message) {
QUICHE_DCHECK(send_server_config_update_cb_ != nullptr);
send_server_config_update_cb_ = nullptr;
if (!ok) {
QUIC_DVLOG(1) << "Server: Failed to build server config update (SCUP)!";
return;
}
QUIC_DVLOG(1) << "Server: Sending server config update: "
<< message.DebugString();
SendHandshakeMessage(message, ENCRYPTION_FORWARD_SECURE);
++num_server_config_update_messages_sent_;
}
bool QuicCryptoServerStream::DisableResumption() {
QUICHE_DCHECK(false) << "Not supported for QUIC crypto.";
return false;
}
bool QuicCryptoServerStream::IsZeroRtt() const {
return num_handshake_messages_ == 1 &&
num_handshake_messages_with_server_nonces_ == 0;
}
bool QuicCryptoServerStream::IsResumption() const {
return IsZeroRtt();
}
int QuicCryptoServerStream::NumServerConfigUpdateMessagesSent() const {
return num_server_config_update_messages_sent_;
}
const CachedNetworkParameters*
QuicCryptoServerStream::PreviousCachedNetworkParams() const {
return previous_cached_network_params_.get();
}
bool QuicCryptoServerStream::ResumptionAttempted() const {
return zero_rtt_attempted_;
}
bool QuicCryptoServerStream::EarlyDataAttempted() const {
QUICHE_DCHECK(false) << "Not supported for QUIC crypto.";
return zero_rtt_attempted_;
}
void QuicCryptoServerStream::SetPreviousCachedNetworkParams(
CachedNetworkParameters cached_network_params) {
previous_cached_network_params_.reset(
new CachedNetworkParameters(cached_network_params));
}
void QuicCryptoServerStream::OnPacketDecrypted(EncryptionLevel level) {
if (level == ENCRYPTION_FORWARD_SECURE) {
one_rtt_packet_decrypted_ = true;
delegate_->NeuterHandshakeData();
}
}
void QuicCryptoServerStream::OnHandshakeDoneReceived() { QUICHE_DCHECK(false); }
void QuicCryptoServerStream::OnNewTokenReceived(absl::string_view ) {
QUICHE_DCHECK(false);
}
std::string QuicCryptoServerStream::GetAddressToken(
const CachedNetworkParameters* ) const {
QUICHE_DCHECK(false);
return "";
}
bool QuicCryptoServerStream::ValidateAddressToken(
absl::string_view ) const {
QUICHE_DCHECK(false);
return false;
}
bool QuicCryptoServerStream::ShouldSendExpectCTHeader() const {
return signed_config_->proof.send_expect_ct_header;
}
bool QuicCryptoServerStream::DidCertMatchSni() const {
return signed_config_->proof.cert_matched_sni;
}
const ProofSource::Details* QuicCryptoServerStream::ProofSourceDetails() const {
return proof_source_details_.get();
}
bool QuicCryptoServerStream::GetBase64SHA256ClientChannelID(
std::string* output) const {
if (!encryption_established() ||
crypto_negotiated_params_->channel_id.empty()) {
return false;
}
const std::string& channel_id(crypto_negotiated_params_->channel_id);
uint8_t digest[SHA256_DIGEST_LENGTH];
SHA256(reinterpret_cast<const uint8_t*>(channel_id.data()), channel_id.size(),
digest);
quiche::QuicheTextUtils::Base64Encode(digest, ABSL_ARRAYSIZE(digest), output);
return true;
}
ssl_early_data_reason_t QuicCryptoServerStream::EarlyDataReason() const {
if (IsZeroRtt()) {
return ssl_early_data_accepted;
}
if (zero_rtt_attempted_) {
return ssl_early_data_session_not_resumed;
}
return ssl_early_data_no_session_offered;
}
bool QuicCryptoServerStream::encryption_established() const {
return encryption_established_;
}
bool QuicCryptoServerStream::one_rtt_keys_available() const {
return one_rtt_keys_available_;
}
const QuicCryptoNegotiatedParameters&
QuicCryptoServerStream::crypto_negotiated_params() const {
return *crypto_negotiated_params_;
}
CryptoMessageParser* QuicCryptoServerStream::crypto_message_parser() {
return QuicCryptoHandshaker::crypto_message_parser();
}
HandshakeState QuicCryptoServerStream::GetHandshakeState() const {
return one_rtt_packet_decrypted_ ? HANDSHAKE_COMPLETE : HANDSHAKE_START;
}
void QuicCryptoServerStream::SetServerApplicationStateForResumption(
std::unique_ptr<ApplicationState> ) {
}
size_t QuicCryptoServerStream::BufferSizeLimitForLevel(
EncryptionLevel level) const {
return QuicCryptoHandshaker::BufferSizeLimitForLevel(level);
}
std::unique_ptr<QuicDecrypter>
QuicCryptoServerStream::AdvanceKeysAndCreateCurrentOneRttDecrypter() {
QUICHE_DCHECK(false);
return nullptr;
}
std::unique_ptr<QuicEncrypter>
QuicCryptoServerStream::CreateCurrentOneRttEncrypter() {
QUICHE_DCHECK(false);
return nullptr;
}
void QuicCryptoServerStream::ProcessClientHello(
quiche::QuicheReferenceCountedPointer<
ValidateClientHelloResultCallback::Result>
result,
std::unique_ptr<ProofSource::Details> proof_source_details,
std::shared_ptr<ProcessClientHelloResultCallback> done_cb) {
proof_source_details_ = std::move(proof_source_details);
const CryptoHandshakeMessage& message = result->client_hello;
std::string error_details;
if (!helper_->CanAcceptClientHello(
message, GetClientAddress(), session()->connection()->peer_address(),
session()->connection()->self_address(), &error_details)) {
done_cb->Run(QUIC_HANDSHAKE_FAILED, error_details, nullptr, nullptr,
nullptr);
return;
}
absl::string_view user_agent_id;
message.GetStringPiece(quic::kUAID, &user_agent_id);
if (!session()->user_agent_id().has_value() && !user_agent_id.empty()) {
session()->SetUserAgentId(std::string(user_agent_id));
}
if (!result->info.server_nonce.empty()) {
++num_handshake_messages_with_server_nonces_;
}
if (num_handshake_messages_ == 1) {
absl::string_view public_value;
zero_rtt_attempted_ = message.GetStringPiece(kPUBS, &public_value);
}
if (result->cached_network_params.bandwidth_estimate_bytes_per_second() > 0) {
previous_cached_network_params_.reset(
new CachedNetworkParameters(result->cached_network_params));
}
previous_source_address_tokens_ = result->info.source_address_tokens;
QuicConnection* connection = session()->connection();
crypto_config_->ProcessClientHello(
result, false, connection->connection_id(),
connection->self_address(), GetClientAddress(), connection->version(),
session()->supported_versions(), connection->clock(),
connection->random_generator(), compressed_certs_cache_,
crypto_negotiated_params_, signed_config_,
QuicCryptoStream::CryptoMessageFramingOverhead(
transport_version(), connection->connection_id()),
chlo_packet_size_, std::move(done_cb));
}
void QuicCryptoServerStream::OverrideQuicConfigDefaults(
QuicConfig* ) {}
QuicCryptoServerStream::ValidateCallback::ValidateCallback(
QuicCryptoServerStream* parent)
: parent_(parent) {}
void QuicCryptoServerStream::ValidateCallback::Cancel() { parent_ = nullptr; }
void QuicCryptoServerStream::ValidateCallback::Run(
quiche::QuicheReferenceCountedPointer<Result> result,
std::unique_ptr<ProofSource::Details> details) {
if (parent_ != nullptr) {
parent_->FinishProcessingHandshakeMessage(std::move(result),
std::move(details));
}
}
const QuicSocketAddress QuicCryptoServerStream::GetClientAddress() {
return session()->connection()->peer_address();
}
SSL* QuicCryptoServerStream::GetSsl() const { return nullptr; }
bool QuicCryptoServerStream::IsCryptoFrameExpectedForEncryptionLevel(
EncryptionLevel ) const {
return true;
}
EncryptionLevel
QuicCryptoServerStream::GetEncryptionLevelToSendCryptoDataOfSpace(
PacketNumberSpace space) const {
if (space == INITIAL_DATA) {
return ENCRYPTION_INITIAL;
}
if (space == APPLICATION_DATA) {
return ENCRYPTION_ZERO_RTT;
}
QUICHE_DCHECK(false);
return NUM_ENCRYPTION_LEVELS;
}
} | #include <algorithm>
#include <map>
#include <memory>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/aes_128_gcm_12_encrypter.h"
#include "quiche/quic/core/crypto/crypto_framer.h"
#include "quiche/quic/core/crypto/crypto_handshake.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/crypto_utils.h"
#include "quiche/quic/core/crypto/quic_crypto_server_config.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/quic_crypto_client_stream.h"
#include "quiche/quic/core/quic_crypto_server_stream_base.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/crypto_test_utils.h"
#include "quiche/quic/test_tools/failing_proof_source.h"
#include "quiche/quic/test_tools/fake_proof_source.h"
#include "quiche/quic/test_tools/quic_crypto_server_config_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
class QuicConnection;
class QuicStream;
}
using testing::_;
using testing::NiceMock;
namespace quic {
namespace test {
namespace {
const char kServerHostname[] = "test.example.com";
const uint16_t kServerPort = 443;
class QuicCryptoServerStreamTest : public QuicTest {
public:
QuicCryptoServerStreamTest()
: QuicCryptoServerStreamTest(crypto_test_utils::ProofSourceForTesting()) {
}
explicit QuicCryptoServerStreamTest(std::unique_ptr<ProofSource> proof_source)
: server_crypto_config_(
QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
std::move(proof_source), KeyExchangeSource::Default()),
server_compressed_certs_cache_(
QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
server_id_(kServerHostname, kServerPort, false),
client_crypto_config_(crypto_test_utils::ProofVerifierForTesting()) {}
void Initialize() { InitializeServer(); }
~QuicCryptoServerStreamTest() override {
server_session_.reset();
client_session_.reset();
helpers_.clear();
alarm_factories_.clear();
}
void InitializeServer() {
TestQuicSpdyServerSession* server_session = nullptr;
helpers_.push_back(std::make_unique<NiceMock<MockQuicConnectionHelper>>());
alarm_factories_.push_back(std::make_unique<MockAlarmFactory>());
CreateServerSessionForTest(
server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_,
helpers_.back().get(), alarm_factories_.back().get(),
&server_crypto_config_, &server_compressed_certs_cache_,
&server_connection_, &server_session);
QUICHE_CHECK(server_session);
server_session_.reset(server_session);
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.Times(testing::AnyNumber());
EXPECT_CALL(*server_session_, SelectAlpn(_))
.WillRepeatedly([this](const std::vector<absl::string_view>& alpns) {
return std::find(
alpns.cbegin(), alpns.cend(),
AlpnForVersion(server_session_->connection()->version()));
});
crypto_test_utils::SetupCryptoServerConfigForTest(
server_connection_->clock(), server_connection_->random_generator(),
&server_crypto_config_);
}
QuicCryptoServerStreamBase* server_stream() {
return server_session_->GetMutableCryptoStream();
}
QuicCryptoClientStream* client_stream() {
return client_session_->GetMutableCryptoStream();
}
void InitializeFakeClient() {
TestQuicSpdyClientSession* client_session = nullptr;
helpers_.push_back(std::make_unique<NiceMock<MockQuicConnectionHelper>>());
alarm_factories_.push_back(std::make_unique<MockAlarmFactory>());
CreateClientSessionForTest(
server_id_, QuicTime::Delta::FromSeconds(100000), supported_versions_,
helpers_.back().get(), alarm_factories_.back().get(),
&client_crypto_config_, &client_connection_, &client_session);
QUICHE_CHECK(client_session);
client_session_.reset(client_session);
}
int CompleteCryptoHandshake() {
QUICHE_CHECK(server_connection_);
QUICHE_CHECK(server_session_ != nullptr);
return crypto_test_utils::HandshakeWithFakeClient(
helpers_.back().get(), alarm_factories_.back().get(),
server_connection_, server_stream(), server_id_, client_options_,
"");
}
void AdvanceHandshakeWithFakeClient() {
QUICHE_CHECK(server_connection_);
QUICHE_CHECK(client_session_ != nullptr);
EXPECT_CALL(*client_session_, OnProofValid(_)).Times(testing::AnyNumber());
EXPECT_CALL(*client_session_, OnProofVerifyDetailsAvailable(_))
.Times(testing::AnyNumber());
EXPECT_CALL(*client_connection_, OnCanWrite()).Times(testing::AnyNumber());
EXPECT_CALL(*server_connection_, OnCanWrite()).Times(testing::AnyNumber());
client_stream()->CryptoConnect();
crypto_test_utils::AdvanceHandshake(client_connection_, client_stream(), 0,
server_connection_, server_stream(), 0);
}
protected:
std::vector<std::unique_ptr<MockQuicConnectionHelper>> helpers_;
std::vector<std::unique_ptr<MockAlarmFactory>> alarm_factories_;
PacketSavingConnection* server_connection_;
std::unique_ptr<TestQuicSpdyServerSession> server_session_;
QuicCryptoServerConfig server_crypto_config_;
QuicCompressedCertsCache server_compressed_certs_cache_;
QuicServerId server_id_;
PacketSavingConnection* client_connection_;
QuicCryptoClientConfig client_crypto_config_;
std::unique_ptr<TestQuicSpdyClientSession> client_session_;
CryptoHandshakeMessage message_;
crypto_test_utils::FakeClientOptions client_options_;
ParsedQuicVersionVector supported_versions_ =
AllSupportedVersionsWithQuicCrypto();
};
TEST_F(QuicCryptoServerStreamTest, NotInitiallyConected) {
Initialize();
EXPECT_FALSE(server_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
}
TEST_F(QuicCryptoServerStreamTest, ConnectedAfterCHLO) {
Initialize();
EXPECT_EQ(2, CompleteCryptoHandshake());
EXPECT_TRUE(server_stream()->encryption_established());
EXPECT_TRUE(server_stream()->one_rtt_keys_available());
}
TEST_F(QuicCryptoServerStreamTest, ForwardSecureAfterCHLO) {
Initialize();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
EXPECT_FALSE(server_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
InitializeServer();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
if (GetQuicReloadableFlag(quic_require_handshake_confirmation)) {
crypto_test_utils::AdvanceHandshake(client_connection_, client_stream(), 0,
server_connection_, server_stream(), 0);
}
EXPECT_TRUE(server_stream()->encryption_established());
EXPECT_TRUE(server_stream()->one_rtt_keys_available());
EXPECT_EQ(ENCRYPTION_FORWARD_SECURE,
server_session_->connection()->encryption_level());
}
TEST_F(QuicCryptoServerStreamTest, ZeroRTT) {
Initialize();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
EXPECT_FALSE(server_stream()->ResumptionAttempted());
QUIC_LOG(INFO) << "Resetting for 0-RTT handshake attempt";
InitializeFakeClient();
InitializeServer();
EXPECT_CALL(*client_session_, OnProofValid(_)).Times(testing::AnyNumber());
EXPECT_CALL(*client_session_, OnProofVerifyDetailsAvailable(_))
.Times(testing::AnyNumber());
EXPECT_CALL(*client_connection_, OnCanWrite()).Times(testing::AnyNumber());
client_stream()->CryptoConnect();
EXPECT_CALL(*client_session_, OnProofValid(_)).Times(testing::AnyNumber());
EXPECT_CALL(*client_session_, OnProofVerifyDetailsAvailable(_))
.Times(testing::AnyNumber());
EXPECT_CALL(*client_connection_, OnCanWrite()).Times(testing::AnyNumber());
crypto_test_utils::CommunicateHandshakeMessages(
client_connection_, client_stream(), server_connection_, server_stream());
EXPECT_EQ(
(GetQuicReloadableFlag(quic_require_handshake_confirmation) ? 2 : 1),
client_stream()->num_sent_client_hellos());
EXPECT_TRUE(server_stream()->ResumptionAttempted());
}
TEST_F(QuicCryptoServerStreamTest, FailByPolicy) {
Initialize();
InitializeFakeClient();
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.WillOnce(testing::Return(false));
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_HANDSHAKE_FAILED, _, _));
AdvanceHandshakeWithFakeClient();
}
TEST_F(QuicCryptoServerStreamTest, MessageAfterHandshake) {
Initialize();
CompleteCryptoHandshake();
EXPECT_CALL(
*server_connection_,
CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, _, _));
message_.set_tag(kCHLO);
crypto_test_utils::SendHandshakeMessageToStream(server_stream(), message_,
Perspective::IS_CLIENT);
}
TEST_F(QuicCryptoServerStreamTest, BadMessageType) {
Initialize();
message_.set_tag(kSHLO);
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_INVALID_CRYPTO_MESSAGE_TYPE, _, _));
crypto_test_utils::SendHandshakeMessageToStream(server_stream(), message_,
Perspective::IS_SERVER);
}
TEST_F(QuicCryptoServerStreamTest, OnlySendSCUPAfterHandshakeComplete) {
Initialize();
server_stream()->SendServerConfigUpdate(nullptr);
EXPECT_EQ(0, server_stream()->NumServerConfigUpdateMessagesSent());
}
TEST_F(QuicCryptoServerStreamTest, SendSCUPAfterHandshakeComplete) {
Initialize();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
InitializeServer();
InitializeFakeClient();
AdvanceHandshakeWithFakeClient();
if (GetQuicReloadableFlag(quic_require_handshake_confirmation)) {
crypto_test_utils::AdvanceHandshake(client_connection_, client_stream(), 0,
server_connection_, server_stream(), 0);
}
EXPECT_CALL(*client_connection_, CloseConnection(_, _, _)).Times(0);
server_stream()->SendServerConfigUpdate(nullptr);
crypto_test_utils::AdvanceHandshake(client_connection_, client_stream(), 1,
server_connection_, server_stream(), 1);
EXPECT_EQ(1, server_stream()->NumServerConfigUpdateMessagesSent());
EXPECT_EQ(1, client_stream()->num_scup_messages_received());
}
class QuicCryptoServerStreamTestWithFailingProofSource
: public QuicCryptoServerStreamTest {
public:
QuicCryptoServerStreamTestWithFailingProofSource()
: QuicCryptoServerStreamTest(
std::unique_ptr<FailingProofSource>(new FailingProofSource)) {}
};
TEST_F(QuicCryptoServerStreamTestWithFailingProofSource, Test) {
Initialize();
InitializeFakeClient();
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.WillOnce(testing::Return(true));
EXPECT_CALL(*server_connection_,
CloseConnection(QUIC_HANDSHAKE_FAILED, "Failed to get proof", _));
AdvanceHandshakeWithFakeClient();
EXPECT_FALSE(server_stream()->encryption_established());
EXPECT_FALSE(server_stream()->one_rtt_keys_available());
}
class QuicCryptoServerStreamTestWithFakeProofSource
: public QuicCryptoServerStreamTest {
public:
QuicCryptoServerStreamTestWithFakeProofSource()
: QuicCryptoServerStreamTest(
std::unique_ptr<FakeProofSource>(new FakeProofSource)),
crypto_config_peer_(&server_crypto_config_) {}
FakeProofSource* GetFakeProofSource() const {
return static_cast<FakeProofSource*>(crypto_config_peer_.GetProofSource());
}
protected:
QuicCryptoServerConfigPeer crypto_config_peer_;
};
TEST_F(QuicCryptoServerStreamTestWithFakeProofSource, MultipleChlo) {
Initialize();
GetFakeProofSource()->Activate();
EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _, _, _))
.WillOnce(testing::Return(true));
QuicTransportVersion transport_version = QUIC_VERSION_UNSUPPORTED;
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
if (version.handshake_protocol == PROTOCOL_QUIC_CRYPTO) {
transport_version = version.transport_version;
break;
}
}
ASSERT_NE(QUIC_VERSION_UNSUPPORTED, transport_version);
MockClock clock;
CryptoHandshakeMessage chlo = crypto_test_utils::GenerateDefaultInchoateCHLO(
&clock, transport_version, &server_crypto_config_);
crypto_test_utils::SendHandshakeMessageToStream(server_stream(), chlo,
Perspective::IS_CLIENT);
EXPECT_EQ(GetFakeProofSource()->NumPendingCallbacks(), 1);
EXPECT_CALL(
*server_connection_,
CloseConnection(QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO,
"Unexpected handshake message while processing CHLO", _));
crypto_test_utils::SendHandshakeMessageToStream(server_stream(), chlo,
Perspective::IS_CLIENT);
}
}
}
} |
283 | cpp | google/quiche | quic_config | quiche/quic/core/quic_config.cc | quiche/quic/core/quic_config_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_CONFIG_H_
#define QUICHE_QUIC_CORE_QUIC_CONFIG_H_
#include <cstddef>
#include <cstdint>
#include <optional>
#include <string>
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QuicConfigPeer;
}
class CryptoHandshakeMessage;
enum QuicConfigPresence : uint8_t {
PRESENCE_OPTIONAL,
PRESENCE_REQUIRED,
};
enum HelloType {
CLIENT,
SERVER,
};
class QUICHE_EXPORT QuicConfigValue {
public:
QuicConfigValue(QuicTag tag, QuicConfigPresence presence);
virtual ~QuicConfigValue();
virtual void ToHandshakeMessage(CryptoHandshakeMessage* out) const = 0;
virtual QuicErrorCode ProcessPeerHello(
const CryptoHandshakeMessage& peer_hello, HelloType hello_type,
std::string* error_details) = 0;
protected:
const QuicTag tag_;
const QuicConfigPresence presence_;
};
class QUICHE_EXPORT QuicFixedUint32 : public QuicConfigValue {
public:
QuicFixedUint32(QuicTag tag, QuicConfigPresence presence);
~QuicFixedUint32() override;
bool HasSendValue() const;
uint32_t GetSendValue() const;
void SetSendValue(uint32_t value);
bool HasReceivedValue() const;
uint32_t GetReceivedValue() const;
void SetReceivedValue(uint32_t value);
void ToHandshakeMessage(CryptoHandshakeMessage* out) const override;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details) override;
private:
bool has_send_value_;
bool has_receive_value_;
uint32_t send_value_;
uint32_t receive_value_;
};
class QUICHE_EXPORT QuicFixedUint62 : public QuicConfigValue {
public:
QuicFixedUint62(QuicTag name, QuicConfigPresence presence);
~QuicFixedUint62() override;
bool HasSendValue() const;
uint64_t GetSendValue() const;
void SetSendValue(uint64_t value);
bool HasReceivedValue() const;
uint64_t GetReceivedValue() const;
void SetReceivedValue(uint64_t value);
void ToHandshakeMessage(CryptoHandshakeMessage* out) const override;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details) override;
private:
bool has_send_value_;
bool has_receive_value_;
uint64_t send_value_;
uint64_t receive_value_;
};
class QUICHE_EXPORT QuicFixedStatelessResetToken : public QuicConfigValue {
public:
QuicFixedStatelessResetToken(QuicTag tag, QuicConfigPresence presence);
~QuicFixedStatelessResetToken() override;
bool HasSendValue() const;
const StatelessResetToken& GetSendValue() const;
void SetSendValue(const StatelessResetToken& value);
bool HasReceivedValue() const;
const StatelessResetToken& GetReceivedValue() const;
void SetReceivedValue(const StatelessResetToken& value);
void ToHandshakeMessage(CryptoHandshakeMessage* out) const override;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details) override;
private:
bool has_send_value_;
bool has_receive_value_;
StatelessResetToken send_value_;
StatelessResetToken receive_value_;
};
class QUICHE_EXPORT QuicFixedTagVector : public QuicConfigValue {
public:
QuicFixedTagVector(QuicTag name, QuicConfigPresence presence);
QuicFixedTagVector(const QuicFixedTagVector& other);
~QuicFixedTagVector() override;
bool HasSendValues() const;
const QuicTagVector& GetSendValues() const;
void SetSendValues(const QuicTagVector& values);
bool HasReceivedValues() const;
const QuicTagVector& GetReceivedValues() const;
void SetReceivedValues(const QuicTagVector& values);
void ToHandshakeMessage(CryptoHandshakeMessage* out) const override;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details) override;
private:
bool has_send_values_;
bool has_receive_values_;
QuicTagVector send_values_;
QuicTagVector receive_values_;
};
class QUICHE_EXPORT QuicFixedSocketAddress : public QuicConfigValue {
public:
QuicFixedSocketAddress(QuicTag tag, QuicConfigPresence presence);
~QuicFixedSocketAddress() override;
bool HasSendValue() const;
const QuicSocketAddress& GetSendValue() const;
void SetSendValue(const QuicSocketAddress& value);
void ClearSendValue();
bool HasReceivedValue() const;
const QuicSocketAddress& GetReceivedValue() const;
void SetReceivedValue(const QuicSocketAddress& value);
void ToHandshakeMessage(CryptoHandshakeMessage* out) const override;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details) override;
private:
bool has_send_value_;
bool has_receive_value_;
QuicSocketAddress send_value_;
QuicSocketAddress receive_value_;
};
class QUICHE_EXPORT QuicConfig {
public:
QuicConfig();
QuicConfig(const QuicConfig& other);
~QuicConfig();
void SetConnectionOptionsToSend(const QuicTagVector& connection_options);
bool HasReceivedConnectionOptions() const;
void SetGoogleHandshakeMessageToSend(std::string message);
const std::optional<std::string>& GetReceivedGoogleHandshakeMessage() const;
bool SetInitialReceivedConnectionOptions(const QuicTagVector& tags);
const QuicTagVector& ReceivedConnectionOptions() const;
bool HasSendConnectionOptions() const;
const QuicTagVector& SendConnectionOptions() const;
bool HasClientSentConnectionOption(QuicTag tag,
Perspective perspective) const;
void SetClientConnectionOptions(
const QuicTagVector& client_connection_options);
bool HasClientRequestedIndependentOption(QuicTag tag,
Perspective perspective) const;
const QuicTagVector& ClientRequestedIndependentOptions(
Perspective perspective) const;
void SetIdleNetworkTimeout(QuicTime::Delta idle_network_timeout);
QuicTime::Delta IdleNetworkTimeout() const;
void SetMaxBidirectionalStreamsToSend(uint32_t max_streams);
uint32_t GetMaxBidirectionalStreamsToSend() const;
bool HasReceivedMaxBidirectionalStreams() const;
uint32_t ReceivedMaxBidirectionalStreams() const;
void SetMaxUnidirectionalStreamsToSend(uint32_t max_streams);
uint32_t GetMaxUnidirectionalStreamsToSend() const;
bool HasReceivedMaxUnidirectionalStreams() const;
uint32_t ReceivedMaxUnidirectionalStreams() const;
void set_max_time_before_crypto_handshake(
QuicTime::Delta max_time_before_crypto_handshake) {
max_time_before_crypto_handshake_ = max_time_before_crypto_handshake;
}
QuicTime::Delta max_time_before_crypto_handshake() const {
return max_time_before_crypto_handshake_;
}
void set_max_idle_time_before_crypto_handshake(
QuicTime::Delta max_idle_time_before_crypto_handshake) {
max_idle_time_before_crypto_handshake_ =
max_idle_time_before_crypto_handshake;
}
QuicTime::Delta max_idle_time_before_crypto_handshake() const {
return max_idle_time_before_crypto_handshake_;
}
void set_max_undecryptable_packets(size_t max_undecryptable_packets) {
max_undecryptable_packets_ = max_undecryptable_packets;
}
size_t max_undecryptable_packets() const {
return max_undecryptable_packets_;
}
bool HasSetBytesForConnectionIdToSend() const;
void SetBytesForConnectionIdToSend(uint32_t bytes);
bool HasReceivedBytesForConnectionId() const;
uint32_t ReceivedBytesForConnectionId() const;
void SetInitialRoundTripTimeUsToSend(uint64_t rtt_us);
bool HasReceivedInitialRoundTripTimeUs() const;
uint64_t ReceivedInitialRoundTripTimeUs() const;
bool HasInitialRoundTripTimeUsToSend() const;
uint64_t GetInitialRoundTripTimeUsToSend() const;
void SetInitialStreamFlowControlWindowToSend(uint64_t window_bytes);
uint64_t GetInitialStreamFlowControlWindowToSend() const;
bool HasReceivedInitialStreamFlowControlWindowBytes() const;
uint64_t ReceivedInitialStreamFlowControlWindowBytes() const;
void SetInitialMaxStreamDataBytesIncomingBidirectionalToSend(
uint64_t window_bytes);
uint64_t GetInitialMaxStreamDataBytesIncomingBidirectionalToSend() const;
bool HasReceivedInitialMaxStreamDataBytesIncomingBidirectional() const;
uint64_t ReceivedInitialMaxStreamDataBytesIncomingBidirectional() const;
void SetInitialMaxStreamDataBytesOutgoingBidirectionalToSend(
uint64_t window_bytes);
uint64_t GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend() const;
bool HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional() const;
uint64_t ReceivedInitialMaxStreamDataBytesOutgoingBidirectional() const;
void SetInitialMaxStreamDataBytesUnidirectionalToSend(uint64_t window_bytes);
uint64_t GetInitialMaxStreamDataBytesUnidirectionalToSend() const;
bool HasReceivedInitialMaxStreamDataBytesUnidirectional() const;
uint64_t ReceivedInitialMaxStreamDataBytesUnidirectional() const;
void SetInitialSessionFlowControlWindowToSend(uint64_t window_bytes);
uint64_t GetInitialSessionFlowControlWindowToSend() const;
bool HasReceivedInitialSessionFlowControlWindowBytes() const;
uint64_t ReceivedInitialSessionFlowControlWindowBytes() const;
void SetDisableConnectionMigration();
bool DisableConnectionMigration() const;
void SetIPv6AlternateServerAddressToSend(
const QuicSocketAddress& alternate_server_address_ipv6);
bool HasReceivedIPv6AlternateServerAddress() const;
const QuicSocketAddress& ReceivedIPv6AlternateServerAddress() const;
void SetIPv4AlternateServerAddressToSend(
const QuicSocketAddress& alternate_server_address_ipv4);
bool HasReceivedIPv4AlternateServerAddress() const;
const QuicSocketAddress& ReceivedIPv4AlternateServerAddress() const;
void SetPreferredAddressConnectionIdAndTokenToSend(
const QuicConnectionId& connection_id,
const StatelessResetToken& stateless_reset_token);
bool HasReceivedPreferredAddressConnectionIdAndToken() const;
const std::pair<QuicConnectionId, StatelessResetToken>&
ReceivedPreferredAddressConnectionIdAndToken() const;
std::optional<QuicSocketAddress> GetPreferredAddressToSend(
quiche::IpAddressFamily address_family) const;
void ClearAlternateServerAddressToSend(
quiche::IpAddressFamily address_family);
void SetIPv4AlternateServerAddressForDNat(
const QuicSocketAddress& alternate_server_address_ipv4_to_send,
const QuicSocketAddress& mapped_alternate_server_address_ipv4);
void SetIPv6AlternateServerAddressForDNat(
const QuicSocketAddress& alternate_server_address_ipv6_to_send,
const QuicSocketAddress& mapped_alternate_server_address_ipv6);
std::optional<QuicSocketAddress> GetMappedAlternativeServerAddress(
quiche::IpAddressFamily address_family) const;
bool SupportsServerPreferredAddress(Perspective perspective) const;
void SetOriginalConnectionIdToSend(
const QuicConnectionId& original_destination_connection_id);
bool HasReceivedOriginalConnectionId() const;
QuicConnectionId ReceivedOriginalConnectionId() const;
void SetStatelessResetTokenToSend(
const StatelessResetToken& stateless_reset_token);
bool HasStatelessResetTokenToSend() const;
bool HasReceivedStatelessResetToken() const;
const StatelessResetToken& ReceivedStatelessResetToken() const;
void SetMaxAckDelayToSendMs(uint32_t max_ack_delay_ms);
uint32_t GetMaxAckDelayToSendMs() const;
bool HasReceivedMaxAckDelayMs() const;
uint32_t ReceivedMaxAckDelayMs() const;
void SetMinAckDelayMs(uint32_t min_ack_delay_ms);
uint32_t GetMinAckDelayToSendMs() const;
bool HasReceivedMinAckDelayMs() const;
uint32_t ReceivedMinAckDelayMs() const;
void SetAckDelayExponentToSend(uint32_t exponent);
uint32_t GetAckDelayExponentToSend() const;
bool HasReceivedAckDelayExponent() const;
uint32_t ReceivedAckDelayExponent() const;
void SetMaxPacketSizeToSend(uint64_t max_udp_payload_size);
uint64_t GetMaxPacketSizeToSend() const;
bool HasReceivedMaxPacketSize() const;
uint64_t ReceivedMaxPacketSize() const;
void SetMaxDatagramFrameSizeToSend(uint64_t max_datagram_frame_size);
uint64_t GetMaxDatagramFrameSizeToSend() const;
bool HasReceivedMaxDatagramFrameSize() const;
uint64_t ReceivedMaxDatagramFrameSize() const;
void SetActiveConnectionIdLimitToSend(uint64_t active_connection_id_limit);
uint64_t GetActiveConnectionIdLimitToSend() const;
bool HasReceivedActiveConnectionIdLimit() const;
uint64_t ReceivedActiveConnectionIdLimit() const;
void SetInitialSourceConnectionIdToSend(
const QuicConnectionId& initial_source_connection_id);
bool HasReceivedInitialSourceConnectionId() const;
QuicConnectionId ReceivedInitialSourceConnectionId() const;
void SetRetrySourceConnectionIdToSend(
const QuicConnectionId& retry_source_connection_id);
bool HasReceivedRetrySourceConnectionId() const;
QuicConnectionId ReceivedRetrySourceConnectionId() const;
bool negotiated() const;
void SetCreateSessionTagIndicators(QuicTagVector tags);
const QuicTagVector& create_session_tag_indicators() const;
void ToHandshakeMessage(CryptoHandshakeMessage* out,
QuicTransportVersion transport_version) const;
QuicErrorCode ProcessPeerHello(const CryptoHandshakeMessage& peer_hello,
HelloType hello_type,
std::string* error_details);
bool FillTransportParameters(TransportParameters* params) const;
QuicErrorCode ProcessTransportParameters(const TransportParameters& params,
bool is_resumption,
std::string* error_details);
TransportParameters::ParameterMap& custom_transport_parameters_to_send() {
return custom_transport_parameters_to_send_;
}
const TransportParameters::ParameterMap&
received_custom_transport_parameters() const {
return received_custom_transport_parameters_;
}
void ClearGoogleHandshakeMessage();
private:
friend class test::QuicConfigPeer;
void SetDefaults();
bool negotiated_;
QuicTime::Delta max_time_before_crypto_handshake_;
QuicTime::Delta max_idle_time_before_crypto_handshake_;
size_t max_undecryptable_packets_;
QuicFixedTagVector connection_options_;
QuicFixedTagVector client_connection_options_;
QuicTime::Delta max_idle_timeout_to_send_;
std::optional<QuicTime::Delta> received_max_idle_timeout_;
QuicFixedUint32 max_bidirectional_streams_;
QuicFixedUint32 max_unidirectional_streams_;
QuicFixedUint32 bytes_for_connection_id_;
QuicFixedUint62 initial_round_trip_time_us_;
QuicFixedUint62 initial_max_stream_data_bytes_incoming_bidirectional_;
QuicFixedUint62 initial_max_stream_data_bytes_outgoing_bidirectional_;
QuicFixedUint62 initial_max_stream_data_bytes_unidirectional_;
QuicFixedUint62 initial_stream_flow_control_window_bytes_;
QuicFixedUint62 initial_session_flow_control_window_bytes_;
QuicFixedUint32 connection_migration_disabled_;
QuicFixedSocketAddress alternate_server_address_ipv6_;
QuicFixedSocketAddress alternate_server_address_ipv4_;
std::optional<QuicSocketAddress> mapped_alternate_server_address_ipv6_;
std::optional<QuicSocketAddress> mapped_alternate_server_address_ipv4_;
std::optional<std::pair<QuicConnectionId, StatelessResetToken>>
preferred_address_connection_id_and_token_;
QuicFixedStatelessResetToken stateless_reset_token_;
QuicTagVector create_session_tag_indicators_;
QuicFixedUint32 max_ack_delay_ms_;
QuicFixedUint32 min_ack_delay_ms_;
QuicFixedUint32 ack_delay_exponent_;
QuicFixedUint62 max_udp_payload_size_;
QuicFixedUint62 max_datagram_frame_size_;
QuicFixedUint62 active_connection_id_limit_;
std::optional<QuicConnectionId> original_destination_connection_id_to_send_;
std::optional<QuicConnectionId> received_original_destination_connection_id_;
std::optional<QuicConnectionId> initial_source_connection_id_to_send_;
std::optional<QuicConnectionId> received_initial_source_connection_id_;
std::optional<QuicConnectionId> retry_source_connection_id_to_send_;
std::optional<QuicConnectionId> received_retry_source_connection_id_;
TransportParameters::ParameterMap custom_transport_parameters_to_send_;
TransportParameters::ParameterMap received_custom_transport_parameters_;
std::optional<std::string> google_handshake_message_to_send_;
std::optional<std::string> received_google_handshake_message_;
};
}
#endif
#include "quiche/quic/core/quic_config.h"
#include <algorithm>
#include <cstring>
#include <limits>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "absl/base/attributes.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_handshake_message.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_socket_address_coder.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
QuicErrorCode ReadUint32(const CryptoHandshakeMessage& msg, QuicTag tag,
QuicConfigPresence presence, uint32_t default_value,
uint32_t* out, std::string* error_details) {
QUICHE_DCHECK(error_details != nullptr);
QuicErrorCode error = msg.GetUint32(tag, out);
switch (error) {
case QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND:
if (presence == PRESENCE_REQUIRED) {
*error_details = "Missing " + QuicTagToString(tag);
break;
}
error = QUIC_NO_ERROR;
*out = default_value;
break;
case QUIC_NO_ERROR:
break;
default:
*error_details = "Bad " + QuicTagToString(tag);
break;
}
return error;
}
QuicConfigValue::QuicConfigValue(QuicTag tag, QuicConfigPresence presence)
: tag_(tag), presence_(presence) {}
QuicConfigValue::~QuicConfigValue() {}
QuicFixedUint32::QuicFixedUint32(QuicTag tag, QuicConfigPresence presence)
: QuicConfigValue(tag, presence),
has_send_value_(false),
has_receive_value_(false) {}
QuicFixedUint32::~QuicFixedUint32() {}
bool QuicFixedUint32::HasSendValue() const { return has_send_value_; }
uint32_t QuicFixedUint32::GetSendValue() const {
QUIC_BUG_IF(quic_bug_12743_1, !has_send_value_)
<< "No send value to get for tag:" << QuicTagToString(tag_);
return send_value_;
}
void QuicFixedUint32::SetSendValue(uint32_t value) {
has_send_value_ = true;
send_value_ = value;
}
bool QuicFixedUint32::HasReceivedValue() const { return has_receive_value_; }
uint32_t QuicFixedUint32::GetReceivedValue() const {
QUIC_BUG_IF(quic_bug_12743_2, !has_receive_value_)
<< "No receive value to get for tag:" << QuicTagToString(tag_);
return receive_value_;
}
void QuicFixedUint32::SetReceivedValue(uint32_t value) {
has_receive_value_ = true;
receive_value_ = value;
}
void QuicFixedUint32::ToHandshakeMessage(CryptoHandshakeMessage* out) const {
if (tag_ == 0) {
QUIC_BUG(quic_b | #include "quiche/quic/core/quic_config.h"
#include <memory>
#include <string>
#include <utility>
#include "quiche/quic/core/crypto/crypto_handshake_message.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
class QuicConfigTest : public QuicTestWithParam<ParsedQuicVersion> {
public:
QuicConfigTest() : version_(GetParam()) {}
protected:
ParsedQuicVersion version_;
QuicConfig config_;
};
INSTANTIATE_TEST_SUITE_P(QuicConfigTests, QuicConfigTest,
::testing::ValuesIn(AllSupportedVersions()),
::testing::PrintToStringParamName());
TEST_P(QuicConfigTest, SetDefaults) {
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialStreamFlowControlWindowToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesIncomingBidirectionalToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesUnidirectionalToSend());
EXPECT_FALSE(config_.HasReceivedInitialStreamFlowControlWindowBytes());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesIncomingBidirectional());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
EXPECT_FALSE(config_.HasReceivedInitialMaxStreamDataBytesUnidirectional());
EXPECT_EQ(kMaxIncomingPacketSize, config_.GetMaxPacketSizeToSend());
EXPECT_FALSE(config_.HasReceivedMaxPacketSize());
}
TEST_P(QuicConfigTest, AutoSetIetfFlowControl) {
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialStreamFlowControlWindowToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesIncomingBidirectionalToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend());
EXPECT_EQ(kMinimumFlowControlSendWindow,
config_.GetInitialMaxStreamDataBytesUnidirectionalToSend());
static const uint32_t kTestWindowSize = 1234567;
config_.SetInitialStreamFlowControlWindowToSend(kTestWindowSize);
EXPECT_EQ(kTestWindowSize, config_.GetInitialStreamFlowControlWindowToSend());
EXPECT_EQ(kTestWindowSize,
config_.GetInitialMaxStreamDataBytesIncomingBidirectionalToSend());
EXPECT_EQ(kTestWindowSize,
config_.GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend());
EXPECT_EQ(kTestWindowSize,
config_.GetInitialMaxStreamDataBytesUnidirectionalToSend());
static const uint32_t kTestWindowSizeTwo = 2345678;
config_.SetInitialMaxStreamDataBytesIncomingBidirectionalToSend(
kTestWindowSizeTwo);
EXPECT_EQ(kTestWindowSize, config_.GetInitialStreamFlowControlWindowToSend());
EXPECT_EQ(kTestWindowSizeTwo,
config_.GetInitialMaxStreamDataBytesIncomingBidirectionalToSend());
EXPECT_EQ(kTestWindowSize,
config_.GetInitialMaxStreamDataBytesOutgoingBidirectionalToSend());
EXPECT_EQ(kTestWindowSize,
config_.GetInitialMaxStreamDataBytesUnidirectionalToSend());
}
TEST_P(QuicConfigTest, ToHandshakeMessage) {
if (version_.UsesTls()) {
return;
}
config_.SetInitialStreamFlowControlWindowToSend(
kInitialStreamFlowControlWindowForTest);
config_.SetInitialSessionFlowControlWindowToSend(
kInitialSessionFlowControlWindowForTest);
config_.SetIdleNetworkTimeout(QuicTime::Delta::FromSeconds(5));
CryptoHandshakeMessage msg;
config_.ToHandshakeMessage(&msg, version_.transport_version);
uint32_t value;
QuicErrorCode error = msg.GetUint32(kICSL, &value);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_EQ(5u, value);
error = msg.GetUint32(kSFCW, &value);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_EQ(kInitialStreamFlowControlWindowForTest, value);
error = msg.GetUint32(kCFCW, &value);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_EQ(kInitialSessionFlowControlWindowForTest, value);
}
TEST_P(QuicConfigTest, ProcessClientHello) {
if (version_.UsesTls()) {
return;
}
const uint32_t kTestMaxAckDelayMs =
static_cast<uint32_t>(GetDefaultDelayedAckTimeMs() + 1);
QuicConfig client_config;
QuicTagVector cgst;
cgst.push_back(kQBIC);
client_config.SetIdleNetworkTimeout(
QuicTime::Delta::FromSeconds(2 * kMaximumIdleTimeoutSecs));
client_config.SetInitialRoundTripTimeUsToSend(10 * kNumMicrosPerMilli);
client_config.SetInitialStreamFlowControlWindowToSend(
2 * kInitialStreamFlowControlWindowForTest);
client_config.SetInitialSessionFlowControlWindowToSend(
2 * kInitialSessionFlowControlWindowForTest);
QuicTagVector copt;
copt.push_back(kTBBR);
client_config.SetConnectionOptionsToSend(copt);
client_config.SetMaxAckDelayToSendMs(kTestMaxAckDelayMs);
CryptoHandshakeMessage msg;
client_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
QuicTagVector initial_received_options;
initial_received_options.push_back(kIW50);
EXPECT_TRUE(
config_.SetInitialReceivedConnectionOptions(initial_received_options));
EXPECT_FALSE(
config_.SetInitialReceivedConnectionOptions(initial_received_options))
<< "You can only set initial options once.";
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_FALSE(
config_.SetInitialReceivedConnectionOptions(initial_received_options))
<< "You cannot set initial options after the hello.";
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kMaximumIdleTimeoutSecs),
config_.IdleNetworkTimeout());
EXPECT_EQ(10 * kNumMicrosPerMilli, config_.ReceivedInitialRoundTripTimeUs());
EXPECT_TRUE(config_.HasReceivedConnectionOptions());
EXPECT_EQ(2u, config_.ReceivedConnectionOptions().size());
EXPECT_EQ(config_.ReceivedConnectionOptions()[0], kIW50);
EXPECT_EQ(config_.ReceivedConnectionOptions()[1], kTBBR);
EXPECT_EQ(config_.ReceivedInitialStreamFlowControlWindowBytes(),
2 * kInitialStreamFlowControlWindowForTest);
EXPECT_EQ(config_.ReceivedInitialSessionFlowControlWindowBytes(),
2 * kInitialSessionFlowControlWindowForTest);
EXPECT_TRUE(config_.HasReceivedMaxAckDelayMs());
EXPECT_EQ(kTestMaxAckDelayMs, config_.ReceivedMaxAckDelayMs());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesIncomingBidirectional());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
EXPECT_FALSE(config_.HasReceivedInitialMaxStreamDataBytesUnidirectional());
}
TEST_P(QuicConfigTest, ProcessServerHello) {
if (version_.UsesTls()) {
return;
}
QuicIpAddress host;
host.FromString("127.0.3.1");
const QuicSocketAddress kTestServerAddress = QuicSocketAddress(host, 1234);
const StatelessResetToken kTestStatelessResetToken{
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f};
const uint32_t kTestMaxAckDelayMs =
static_cast<uint32_t>(GetDefaultDelayedAckTimeMs() + 1);
QuicConfig server_config;
QuicTagVector cgst;
cgst.push_back(kQBIC);
server_config.SetIdleNetworkTimeout(
QuicTime::Delta::FromSeconds(kMaximumIdleTimeoutSecs / 2));
server_config.SetInitialRoundTripTimeUsToSend(10 * kNumMicrosPerMilli);
server_config.SetInitialStreamFlowControlWindowToSend(
2 * kInitialStreamFlowControlWindowForTest);
server_config.SetInitialSessionFlowControlWindowToSend(
2 * kInitialSessionFlowControlWindowForTest);
server_config.SetIPv4AlternateServerAddressToSend(kTestServerAddress);
server_config.SetStatelessResetTokenToSend(kTestStatelessResetToken);
server_config.SetMaxAckDelayToSendMs(kTestMaxAckDelayMs);
CryptoHandshakeMessage msg;
server_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, SERVER, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
EXPECT_EQ(QuicTime::Delta::FromSeconds(kMaximumIdleTimeoutSecs / 2),
config_.IdleNetworkTimeout());
EXPECT_EQ(10 * kNumMicrosPerMilli, config_.ReceivedInitialRoundTripTimeUs());
EXPECT_EQ(config_.ReceivedInitialStreamFlowControlWindowBytes(),
2 * kInitialStreamFlowControlWindowForTest);
EXPECT_EQ(config_.ReceivedInitialSessionFlowControlWindowBytes(),
2 * kInitialSessionFlowControlWindowForTest);
EXPECT_TRUE(config_.HasReceivedIPv4AlternateServerAddress());
EXPECT_EQ(kTestServerAddress, config_.ReceivedIPv4AlternateServerAddress());
EXPECT_FALSE(config_.HasReceivedIPv6AlternateServerAddress());
EXPECT_TRUE(config_.HasReceivedStatelessResetToken());
EXPECT_EQ(kTestStatelessResetToken, config_.ReceivedStatelessResetToken());
EXPECT_TRUE(config_.HasReceivedMaxAckDelayMs());
EXPECT_EQ(kTestMaxAckDelayMs, config_.ReceivedMaxAckDelayMs());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesIncomingBidirectional());
EXPECT_FALSE(
config_.HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
EXPECT_FALSE(config_.HasReceivedInitialMaxStreamDataBytesUnidirectional());
}
TEST_P(QuicConfigTest, MissingOptionalValuesInCHLO) {
if (version_.UsesTls()) {
return;
}
CryptoHandshakeMessage msg;
msg.SetValue(kICSL, 1);
msg.SetValue(kICSL, 1);
msg.SetValue(kMIBS, 1);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
}
TEST_P(QuicConfigTest, MissingOptionalValuesInSHLO) {
if (version_.UsesTls()) {
return;
}
CryptoHandshakeMessage msg;
msg.SetValue(kICSL, 1);
msg.SetValue(kMIBS, 1);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, SERVER, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
}
TEST_P(QuicConfigTest, MissingValueInCHLO) {
if (version_.UsesTls()) {
return;
}
CryptoHandshakeMessage msg;
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_THAT(error, IsError(QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND));
}
TEST_P(QuicConfigTest, MissingValueInSHLO) {
if (version_.UsesTls()) {
return;
}
CryptoHandshakeMessage msg;
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, SERVER, &error_details);
EXPECT_THAT(error, IsError(QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND));
}
TEST_P(QuicConfigTest, OutOfBoundSHLO) {
if (version_.UsesTls()) {
return;
}
QuicConfig server_config;
server_config.SetIdleNetworkTimeout(
QuicTime::Delta::FromSeconds(2 * kMaximumIdleTimeoutSecs));
CryptoHandshakeMessage msg;
server_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, SERVER, &error_details);
EXPECT_THAT(error, IsError(QUIC_INVALID_NEGOTIATED_VALUE));
}
TEST_P(QuicConfigTest, InvalidFlowControlWindow) {
QuicConfig config;
const uint64_t kInvalidWindow = kMinimumFlowControlSendWindow - 1;
EXPECT_QUIC_BUG(
config.SetInitialStreamFlowControlWindowToSend(kInvalidWindow),
"Initial stream flow control receive window");
EXPECT_EQ(kMinimumFlowControlSendWindow,
config.GetInitialStreamFlowControlWindowToSend());
}
TEST_P(QuicConfigTest, HasClientSentConnectionOption) {
if (version_.UsesTls()) {
return;
}
QuicConfig client_config;
QuicTagVector copt;
copt.push_back(kTBBR);
client_config.SetConnectionOptionsToSend(copt);
EXPECT_TRUE(client_config.HasClientSentConnectionOption(
kTBBR, Perspective::IS_CLIENT));
CryptoHandshakeMessage msg;
client_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
EXPECT_TRUE(config_.HasReceivedConnectionOptions());
EXPECT_EQ(1u, config_.ReceivedConnectionOptions().size());
EXPECT_TRUE(
config_.HasClientSentConnectionOption(kTBBR, Perspective::IS_SERVER));
}
TEST_P(QuicConfigTest, DontSendClientConnectionOptions) {
if (version_.UsesTls()) {
return;
}
QuicConfig client_config;
QuicTagVector copt;
copt.push_back(kTBBR);
client_config.SetClientConnectionOptions(copt);
CryptoHandshakeMessage msg;
client_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
EXPECT_FALSE(config_.HasReceivedConnectionOptions());
}
TEST_P(QuicConfigTest, HasClientRequestedIndependentOption) {
if (version_.UsesTls()) {
return;
}
QuicConfig client_config;
QuicTagVector client_opt;
client_opt.push_back(kRENO);
QuicTagVector copt;
copt.push_back(kTBBR);
client_config.SetClientConnectionOptions(client_opt);
client_config.SetConnectionOptionsToSend(copt);
EXPECT_TRUE(client_config.HasClientSentConnectionOption(
kTBBR, Perspective::IS_CLIENT));
EXPECT_TRUE(client_config.HasClientRequestedIndependentOption(
kRENO, Perspective::IS_CLIENT));
EXPECT_FALSE(client_config.HasClientRequestedIndependentOption(
kTBBR, Perspective::IS_CLIENT));
CryptoHandshakeMessage msg;
client_config.ToHandshakeMessage(&msg, version_.transport_version);
std::string error_details;
const QuicErrorCode error =
config_.ProcessPeerHello(msg, CLIENT, &error_details);
EXPECT_THAT(error, IsQuicNoError());
EXPECT_TRUE(config_.negotiated());
EXPECT_TRUE(config_.HasReceivedConnectionOptions());
EXPECT_EQ(1u, config_.ReceivedConnectionOptions().size());
EXPECT_FALSE(config_.HasClientRequestedIndependentOption(
kRENO, Perspective::IS_SERVER));
EXPECT_TRUE(config_.HasClientRequestedIndependentOption(
kTBBR, Perspective::IS_SERVER));
}
TEST_P(QuicConfigTest, IncomingLargeIdleTimeoutTransportParameter) {
if (!version_.UsesTls()) {
return;
}
config_.SetIdleNetworkTimeout(quic::QuicTime::Delta::FromSeconds(60));
TransportParameters params;
params.max_idle_timeout_ms.set_value(120000);
std::string error_details = "foobar";
EXPECT_THAT(config_.ProcessTransportParameters(
params, false, &error_details),
IsQuicNoError());
EXPECT_EQ("", error_details);
EXPECT_EQ(quic::QuicTime::Delta::FromSeconds(60),
config_.IdleNetworkTimeout());
}
TEST_P(QuicConfigTest, ReceivedInvalidMinAckDelayInTransportParameter) {
if (!version_.UsesTls()) {
return;
}
TransportParameters params;
params.max_ack_delay.set_value(25 );
params.min_ack_delay_us.set_value(25 * kNumMicrosPerMilli + 1);
std::string error_details = "foobar";
EXPECT_THAT(config_.ProcessTransportParameters(
params, false, &error_details),
IsError(IETF_QUIC_PROTOCOL_VIOLATION));
EXPECT_EQ("MinAckDelay is greater than MaxAckDelay.", error_details);
params.max_ack_delay.set_value(25 );
params.min_ack_delay_us.set_value(25 * kNumMicrosPerMilli);
EXPECT_THAT(config_.ProcessTransportParameters(
params, false, &error_details),
IsQuicNoError());
EXPECT_TRUE(error_details.empty());
}
TEST_P(QuicConfigTest, FillTransportParams) {
if (!version_.UsesTls()) {
return;
}
const std::string kFakeGoogleHandshakeMessage = "Fake handshake message";
config_.SetInitialMaxStreamDataBytesIncomingBidirectionalToSend(
2 * kMinimumFlowControlSendWindow);
config_.SetInitialMaxStreamDataBytesOutgoingBidirectionalToSend(
3 * kMinimumFlowControlSendWindow);
config_.SetInitialMaxStreamDataBytesUnidirectionalToSend(
4 * kMinimumFlowControlSendWindow);
config_.SetMaxPacketSizeToSend(kMaxPacketSizeForTest);
config_.SetMaxDatagramFrameSizeToSend(kMaxDatagramFrameSizeForTest);
config_.SetActiveConnectionIdLimitToSend(kActiveConnectionIdLimitForTest);
config_.SetOriginalConnectionIdToSend(TestConnectionId(0x1111));
config_.SetInitialSourceConnectionIdToSend(TestConnectionId(0x2222));
config_.SetRetrySourceConnectionIdToSend(TestConnectionId(0x3333));
config_.SetMinAckDelayMs(kDefaultMinAckDelayTimeMs);
config_.SetGoogleHandshakeMessageToSend(kFakeGoogleHandshakeMessage);
QuicIpAddress host;
host.FromString("127.0.3.1");
QuicSocketAddress kTestServerAddress = QuicSocketAddress(host, 1234);
QuicConnectionId new_connection_id = TestConnectionId(5);
StatelessResetToken new_stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(new_connection_id);
config_.SetIPv4AlternateServerAddressToSend(kTestServerAddress);
QuicSocketAddress kTestServerAddressV6 =
QuicSocketAddress(QuicIpAddress::Any6(), 1234);
config_.SetIPv6AlternateServerAddressToSend(kTestServerAddressV6);
config_.SetPreferredAddressConnectionIdAndTokenToSend(
new_connection_id, new_stateless_reset_token);
config_.ClearAlternateServerAddressToSend(quiche::IpAddressFamily::IP_V6);
EXPECT_TRUE(config_.GetPreferredAddressToSend(quiche::IpAddressFamily::IP_V4)
.has_value());
EXPECT_FALSE(config_.GetPreferredAddressToSend(quiche::IpAddressFamily::IP_V6)
.has_value());
TransportParameters params;
config_.FillTransportParameters(¶ms);
EXPECT_EQ(2 * kMinimumFlowControlSendWindow,
params.initial_max_stream_data_bidi_remote.value());
EXPECT_EQ(3 * kMinimumFlowControlSendWindow,
params.initial_max_stream_data_bidi_local.value());
EXPECT_EQ(4 * kMinimumFlowControlSendWindow,
params.initial_max_stream_data_uni.value());
EXPECT_EQ(static_cast<uint64_t>(kMaximumIdleTimeoutSecs * 1000),
params.max_idle_timeout_ms.value());
EXPECT_EQ(kMaxPacketSizeForTest, params.max_udp_payload_size.value());
EXPECT_EQ(kMaxDatagramFrameSizeForTest,
params.max_datagram_frame_size.value());
EXPECT_EQ(kActiveConnectionIdLimitForTest,
params.active_connection_id_limit.value());
ASSERT_TRUE(params.original_destination_connection_id.has_value());
EXPECT_EQ(TestConnectionId(0x1111),
params.original_destination_connection_id.value());
ASSERT_TRUE(params.initial_source_connection_id.has_value());
EXPECT_EQ(TestConnectionId(0x2222),
params.initial_source_connection_id.value());
ASSERT_TRUE(params.retry_source_connection_id.has_value());
EXPECT_EQ(TestConnectionId(0x3333),
params.retry_source_connection_id.value());
EXPECT_EQ(
static_cast<uint64_t>(kDefaultMinAckDelayTimeMs) * kNumMicrosPerMilli,
params.min_ack_delay_us.value());
EXPECT_EQ(params.preferred_address->ipv4_socket_address, kTestServerAddress);
EXPECT_EQ(params.preferred_address->ipv6_socket_address,
QuicSocketAddress(QuicIpAddress::Any6(), 0));
EXPECT_EQ(*reinterpret_cast<StatelessResetToken*>(
¶ms.preferred_address->stateless_reset_token.front()),
new_stateless_reset_token);
EXPECT_EQ(kFakeGoogleHandshakeMessage, params.google_handshake_message);
}
TEST_P(QuicConfigTest, DNATPreferredAddress) {
QuicIpAddress host_v4;
host_v4.FromString("127.0.3.1");
QuicSocketAddress server_address_v4 = QuicSocketAddress(host_v4, 1234);
QuicSocketAddress expected_server_address_v4 =
QuicSocketAddress(host_v4, 1235);
QuicIpAddress host_v6;
host_v6.FromString("2001:db8:0::1");
QuicSocketAddress server_address_v6 = QuicSocketAddress(host_v6, 1234);
QuicSocketAddress expected_server_address_v6 =
QuicSocketAddress(host_v6, 1235);
config_.SetIPv4AlternateServerAddressForDNat(server_address_v4,
expected_server_address_v4);
config_.SetIPv6AlternateServerAddressForDNat(server_address_v6,
expected_server_address_v6);
EXPECT_EQ(server_address_v4,
config_.GetPreferredAddressToSend(quiche::IpAddressFamily::IP_V4));
EXPECT_EQ(server_address_v6,
config_.GetPreferredAddressToSend(quiche::IpAddressFamily::IP_V6));
EXPECT_EQ(expected_server_address_v4,
config_.GetMappedAlternativeServerAddress(
quiche::IpAddressFamily::IP_V4));
EXPECT_EQ(expected_server_address_v6,
config_.GetMappedAlternativeServerAddress(
quiche::IpAddressFamily::IP_V6));
}
TEST_P(QuicConfigTest, FillTransportParamsNoV4PreferredAddress) {
if (!version_.UsesTls()) {
return;
}
QuicIpAddress host;
host.FromString("127.0.3.1");
QuicSocketAddress kTestServerAddress = QuicSocketAddress(host, 1234);
QuicConnectionId new_connection_id = TestConnectionId(5);
StatelessResetToken new_stateless_reset_token =
QuicUtils::GenerateStatelessResetToken(new_connection_id);
config_.SetIPv4AlternateServerAddressToSend(kTestServerAddress);
QuicSocketAddress kTestServerAddressV6 =
QuicSocketAddress(QuicIpAddress::Any6(), 1234);
config_.SetIPv6AlternateServerAddressToSend(kTestServerAddressV6);
config_.SetPreferredAddressConnectionIdAndTokenToSend(
new_connection_id, new_stateless_reset_token);
config_.ClearAlternateServerAddressToSend(quiche::IpAddressFamily::IP_V4);
EXPECT_FALSE(config_.GetPreferredAddressToSend(quiche::IpAddressFamily::IP_V4)
.has_value());
config_.ClearAlternateServerAddressToSend(quiche::IpAddressFamily::IP_V4);
TransportParameters params;
config_.FillTransportParameters(¶ms);
EXPECT_EQ(params.preferred_address->ipv4_socket_address,
QuicSocketAddress(QuicIpAddress::Any4(), 0));
EXPECT_EQ(params.preferred_address->ipv6_socket_address,
kTestServerAddressV6);
}
TEST_P(QuicConfigTest, SupportsServerPreferredAddress) {
SetQuicFlag(quic_always_support_server_preferred_address, true);
EXPECT_TRUE(config_.SupportsServerPreferredAddress(Perspective::IS_CLIENT));
EXPECT_TRUE(config_.SupportsServerPreferredAddress(Perspective::IS_SERVER));
SetQuicFlag(quic_always_support_server_preferred_address, false);
EXPECT_FALSE(config_.SupportsServerPreferredAddress(Perspective::IS_CLIENT));
EXPECT_FALSE(config_.SupportsServerPreferredAddress(Perspective::IS_SERVER));
QuicTagVector copt;
copt.push_back(kSPAD);
config_.SetConnectionOptionsToSend(copt);
EXPECT_TRUE(config_.SupportsServerPreferredAddress(Perspective::IS_CLIENT));
EXPECT_FALSE(config_.SupportsServerPreferredAddress(Perspective::IS_SERVER));
config_.SetInitialReceivedConnectionOptions(copt);
EXPECT_TRUE(config_.SupportsServerPreferredAddress(Perspective::IS_CLIENT));
EXPECT_TRUE(config_.SupportsServerPreferredAddress(Perspective::IS_SERVER));
}
TEST_P(QuicConfigTest, ProcessTransportParametersServer) {
if (!version_.UsesTls()) {
return;
}
const std::string kFakeGoogleHandshakeMessage = "Fake handshake message";
TransportParameters params;
params.initial_max_stream_data_bidi_local.set_value(
2 * kMinimumFlowControlSendWindow);
params.initial_max_stream_data_bidi_remote.set_value(
3 * kMinimumFlowControlSendWindow);
params.initial_max_stream_data_uni.set_value(4 *
kMinimumFlowControlSendWindow);
params.max_udp_payload_size.set_value(kMaxPacketSizeForTest);
params.max_datagram_frame_size.set_value(kMaxDatagramFrameSizeForTest);
params.initial_max_streams_bidi.set_value(kDefaultMaxStreamsPerConnection);
params.stateless_reset_token = CreateStatelessResetTokenForTest();
params.max_ack_delay.set_value(kMaxAckDelayForTest);
params.min_ack_delay_us.set_value(kMinAckDelayUsForTest);
params.ack_delay_exponent.set_value(kAckDelayExponentForTest);
params.active_connection_id_limit.set_value(kActiveConnectionIdLimitForTest);
params.original_destination_connection_id = TestConnectionId(0x1111);
params.initial_source_connection_id = TestConnectionId(0x2222);
params.retry_source_connection_id = TestConnectionId(0x3333);
params.google_handshake_message = kFakeGoogleHandshakeMessage;
std::string error_details;
EXPECT_THAT(config_.ProcessTransportParameters(
params, true, &error_details),
IsQuicNoError())
<< error_details;
EXPECT_FALSE(config_.negotiated());
ASSERT_TRUE(
config_.HasReceivedInitialMaxStreamDataBytesIncomingBidirectional());
EXPECT_EQ(2 * kMinimumFlowControlSendWindow,
config_.ReceivedInitialMaxStreamDataBytesIncomingBidirectional());
ASSERT_TRUE(
config_.HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
EXPECT_EQ(3 * kMinimumFlowControlSendWindow,
config_.ReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
ASSERT_TRUE(config_.HasReceivedInitialMaxStreamDataBytesUnidirectional());
EXPECT_EQ(4 * kMinimumFlowControlSendWindow,
config_.ReceivedInitialMaxStreamDataBytesUnidirectional());
ASSERT_TRUE(config_.HasReceivedMaxPacketSize());
EXPECT_EQ(kMaxPacketSizeForTest, config_.ReceivedMaxPacketSize());
ASSERT_TRUE(config_.HasReceivedMaxDatagramFrameSize());
EXPECT_EQ(kMaxDatagramFrameSizeForTest,
config_.ReceivedMaxDatagramFrameSize());
ASSERT_TRUE(config_.HasReceivedMaxBidirectionalStreams());
EXPECT_EQ(kDefaultMaxStreamsPerConnection,
config_.ReceivedMaxBidirectionalStreams());
EXPECT_FALSE(config_.DisableConnectionMigration());
EXPECT_FALSE(config_.HasReceivedStatelessResetToken());
EXPECT_FALSE(config_.HasReceivedMaxAckDelayMs());
EXPECT_FALSE(config_.HasReceivedAckDelayExponent());
EXPECT_FALSE(config_.HasReceivedMinAckDelayMs());
EXPECT_FALSE(config_.HasReceivedOriginalConnectionId());
EXPECT_FALSE(config_.HasReceivedInitialSourceConnectionId());
EXPECT_FALSE(config_.HasReceivedRetrySourceConnectionId());
params.initial_max_stream_data_bidi_local.set_value(
2 * kMinimumFlowControlSendWindow + 1);
params.initial_max_stream_data_bidi_remote.set_value(
4 * kMinimumFlowControlSendWindow);
params.initial_max_stream_data_uni.set_value(5 *
kMinimumFlowControlSendWindow);
params.max_udp_payload_size.set_value(2 * kMaxPacketSizeForTest);
params.max_datagram_frame_size.set_value(2 * kMaxDatagramFrameSizeForTest);
params.initial_max_streams_bidi.set_value(2 *
kDefaultMaxStreamsPerConnection);
params.disable_active_migration = true;
EXPECT_THAT(config_.ProcessTransportParameters(
params, false, &error_details),
IsQuicNoError())
<< error_details;
EXPECT_TRUE(config_.negotiated());
ASSERT_TRUE(
config_.HasReceivedInitialMaxStreamDataBytesIncomingBidirectional());
EXPECT_EQ(2 * kMinimumFlowControlSendWindow + 1,
config_.ReceivedInitialMaxStreamDataBytesIncomingBidirectional());
ASSERT_TRUE(
config_.HasReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
EXPECT_EQ(4 * kMinimumFlowControlSendWindow,
config_.ReceivedInitialMaxStreamDataBytesOutgoingBidirectional());
ASSERT_TRUE(config_.HasReceivedInitialMaxStreamDataBytesUnidirectional());
EXPECT_EQ(5 * kMinimumFlowControlSendWindow,
config_.ReceivedInitialMaxStreamDataBytesUnidirectional());
ASSERT_TRUE(config_.HasReceivedMaxPacketSize());
EXPECT_EQ(2 * kMaxPacketSizeForTest, config_.ReceivedMaxPacketSize());
ASSERT_TRUE(config_.HasReceivedMaxDatagramFrameSize());
EXPECT_EQ(2 * kMaxDatagramFrameSizeForTest,
config_.ReceivedMaxDatagramFrameSize());
ASSERT_TRUE(config_.HasReceivedMaxBidirectionalStreams());
EXPECT_EQ(2 * kDefaultMaxStreamsPerConnection,
config_.ReceivedMaxBidirectionalStreams());
EXPECT_TRUE(config_.DisableConnectionMigration());
ASSERT_TRUE(config_.HasReceivedStatelessResetToken());
ASSERT_TRUE(config_.HasReceivedMaxAckDelayMs());
EXPECT_EQ(config_.ReceivedMaxAckDelayMs(), kMaxAckDelayForTest);
ASSERT_TRUE(config_.HasReceivedMinAckDelayMs());
EXPECT_EQ(config_.ReceivedMinAckDelayMs(),
kMinAckDelayUsForTest / kNumMicrosPerMilli);
ASSERT_TRUE(config_.HasReceivedAckDelayExponent());
EXPECT_EQ(config_.ReceivedAckDelayExponent(), kAckDelayExponentForTest);
ASSERT_TRUE(config_.HasReceivedActiveConnectionIdLimit());
EXPECT_EQ(config_.ReceivedActiveConnectionIdLimit(),
kActiveConnectionIdLimitForTest);
ASSERT_TRUE(config_.HasReceivedOriginalConnectionId());
EXPECT_EQ(config_.ReceivedOriginalConnectionId(), TestConnectionId(0x1111));
ASSERT_TRUE(config_.HasReceivedInitialSourceConnectionId());
EXPECT_EQ(config_.ReceivedInitialSourceConnectionId(),
TestConnectionId(0x2222));
ASSERT_TRUE(config_.HasReceivedRetrySourceConnectionId());
EXPECT_EQ(config_.ReceivedRetrySourceConnectionId(),
TestConnectionId(0x3333));
EXPECT_EQ(kFakeGoogleHandshakeMessage,
config_.GetReceivedGoogleHandshakeMessage());
}
TEST_P(QuicConfigTest, DisableMigrationTransportParameter) {
if (!version_.UsesTls()) {
return;
}
TransportParameters params;
params.disable_active_migration = true;
std::string error_details;
EXPECT_THAT(config_.ProcessTransportParameters(
params, false, &error_details),
IsQuicNoError());
EXPECT_TRUE(config_.DisableConnectionMigration());
}
TEST_P(QuicConfigTest, SendPreferredIPv4Address) {
if (!version_.UsesTls()) {
return;
}
EXPECT_FALSE(config_.H |
284 | cpp | google/quiche | quic_socket_address_coder | quiche/quic/core/quic_socket_address_coder.cc | quiche/quic/core/quic_socket_address_coder_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_SOCKET_ADDRESS_CODER_H_
#define QUICHE_QUIC_CORE_QUIC_SOCKET_ADDRESS_CODER_H_
#include <cstdint>
#include <string>
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
namespace quic {
class QUICHE_EXPORT QuicSocketAddressCoder {
public:
QuicSocketAddressCoder();
explicit QuicSocketAddressCoder(const QuicSocketAddress& address);
QuicSocketAddressCoder(const QuicSocketAddressCoder&) = delete;
QuicSocketAddressCoder& operator=(const QuicSocketAddressCoder&) = delete;
~QuicSocketAddressCoder();
std::string Encode() const;
bool Decode(const char* data, size_t length);
QuicIpAddress ip() const { return address_.host(); }
uint16_t port() const { return address_.port(); }
private:
QuicSocketAddress address_;
};
}
#endif
#include "quiche/quic/core/quic_socket_address_coder.h"
#include <cstring>
#include <string>
#include <vector>
#include "quiche/quic/platform/api/quic_ip_address_family.h"
namespace quic {
namespace {
const uint16_t kIPv4 = 2;
const uint16_t kIPv6 = 10;
}
QuicSocketAddressCoder::QuicSocketAddressCoder() {}
QuicSocketAddressCoder::QuicSocketAddressCoder(const QuicSocketAddress& address)
: address_(address) {}
QuicSocketAddressCoder::~QuicSocketAddressCoder() {}
std::string QuicSocketAddressCoder::Encode() const {
std::string serialized;
uint16_t address_family;
switch (address_.host().address_family()) {
case IpAddressFamily::IP_V4:
address_family = kIPv4;
break;
case IpAddressFamily::IP_V6:
address_family = kIPv6;
break;
default:
return serialized;
}
serialized.append(reinterpret_cast<const char*>(&address_family),
sizeof(address_family));
serialized.append(address_.host().ToPackedString());
uint16_t port = address_.port();
serialized.append(reinterpret_cast<const char*>(&port), sizeof(port));
return serialized;
}
bool QuicSocketAddressCoder::Decode(const char* data, size_t length) {
uint16_t address_family;
if (length < sizeof(address_family)) {
return false;
}
memcpy(&address_family, data, sizeof(address_family));
data += sizeof(address_family);
length -= sizeof(address_family);
size_t ip_length;
switch (address_family) {
case kIPv4:
ip_length = QuicIpAddress::kIPv4AddressSize;
break;
case kIPv6:
ip_length = QuicIpAddress::kIPv6AddressSize;
break;
default:
return false;
}
if (length < ip_length) {
return false;
}
std::vector<uint8_t> ip(ip_length);
memcpy(&ip[0], data, ip_length);
data += ip_length;
length -= ip_length;
uint16_t port;
if (length != sizeof(port)) {
return false;
}
memcpy(&port, data, length);
QuicIpAddress ip_address;
ip_address.FromPackedString(reinterpret_cast<const char*>(&ip[0]), ip_length);
address_ = QuicSocketAddress(ip_address, port);
return true;
}
} | #include "quiche/quic/core/quic_socket_address_coder.h"
#include <string>
#include "absl/base/macros.h"
#include "quiche/quic/platform/api/quic_ip_address.h"
#include "quiche/quic/platform/api/quic_ip_address_family.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
class QuicSocketAddressCoderTest : public QuicTest {};
TEST_F(QuicSocketAddressCoderTest, EncodeIPv4) {
QuicIpAddress ip;
ip.FromString("4.31.198.44");
QuicSocketAddressCoder coder(QuicSocketAddress(ip, 0x1234));
std::string serialized = coder.Encode();
std::string expected("\x02\x00\x04\x1f\xc6\x2c\x34\x12", 8);
EXPECT_EQ(expected, serialized);
}
TEST_F(QuicSocketAddressCoderTest, EncodeIPv6) {
QuicIpAddress ip;
ip.FromString("2001:700:300:1800::f");
QuicSocketAddressCoder coder(QuicSocketAddress(ip, 0x5678));
std::string serialized = coder.Encode();
std::string expected(
"\x0a\x00"
"\x20\x01\x07\x00\x03\x00\x18\x00"
"\x00\x00\x00\x00\x00\x00\x00\x0f"
"\x78\x56",
20);
EXPECT_EQ(expected, serialized);
}
TEST_F(QuicSocketAddressCoderTest, DecodeIPv4) {
std::string serialized("\x02\x00\x04\x1f\xc6\x2c\x34\x12", 8);
QuicSocketAddressCoder coder;
ASSERT_TRUE(coder.Decode(serialized.data(), serialized.length()));
EXPECT_EQ(IpAddressFamily::IP_V4, coder.ip().address_family());
std::string expected_addr("\x04\x1f\xc6\x2c");
EXPECT_EQ(expected_addr, coder.ip().ToPackedString());
EXPECT_EQ(0x1234, coder.port());
}
TEST_F(QuicSocketAddressCoderTest, DecodeIPv6) {
std::string serialized(
"\x0a\x00"
"\x20\x01\x07\x00\x03\x00\x18\x00"
"\x00\x00\x00\x00\x00\x00\x00\x0f"
"\x78\x56",
20);
QuicSocketAddressCoder coder;
ASSERT_TRUE(coder.Decode(serialized.data(), serialized.length()));
EXPECT_EQ(IpAddressFamily::IP_V6, coder.ip().address_family());
std::string expected_addr(
"\x20\x01\x07\x00\x03\x00\x18\x00"
"\x00\x00\x00\x00\x00\x00\x00\x0f",
16);
EXPECT_EQ(expected_addr, coder.ip().ToPackedString());
EXPECT_EQ(0x5678, coder.port());
}
TEST_F(QuicSocketAddressCoderTest, DecodeBad) {
std::string serialized(
"\x0a\x00"
"\x20\x01\x07\x00\x03\x00\x18\x00"
"\x00\x00\x00\x00\x00\x00\x00\x0f"
"\x78\x56",
20);
QuicSocketAddressCoder coder;
EXPECT_TRUE(coder.Decode(serialized.data(), serialized.length()));
serialized.push_back('\0');
EXPECT_FALSE(coder.Decode(serialized.data(), serialized.length()));
serialized.resize(20);
EXPECT_TRUE(coder.Decode(serialized.data(), serialized.length()));
serialized[0] = '\x03';
EXPECT_FALSE(coder.Decode(serialized.data(), serialized.length()));
serialized[0] = '\x0a';
EXPECT_TRUE(coder.Decode(serialized.data(), serialized.length()));
size_t len = serialized.length();
for (size_t i = 0; i < len; i++) {
ASSERT_FALSE(serialized.empty());
serialized.erase(serialized.length() - 1);
EXPECT_FALSE(coder.Decode(serialized.data(), serialized.length()));
}
EXPECT_TRUE(serialized.empty());
}
TEST_F(QuicSocketAddressCoderTest, EncodeAndDecode) {
struct {
const char* ip_literal;
uint16_t port;
} test_case[] = {
{"93.184.216.119", 0x1234},
{"199.204.44.194", 80},
{"149.20.4.69", 443},
{"127.0.0.1", 8080},
{"2001:700:300:1800::", 0x5678},
{"::1", 65534},
};
for (size_t i = 0; i < ABSL_ARRAYSIZE(test_case); i++) {
QuicIpAddress ip;
ASSERT_TRUE(ip.FromString(test_case[i].ip_literal));
QuicSocketAddressCoder encoder(QuicSocketAddress(ip, test_case[i].port));
std::string serialized = encoder.Encode();
QuicSocketAddressCoder decoder;
ASSERT_TRUE(decoder.Decode(serialized.data(), serialized.length()));
EXPECT_EQ(encoder.ip(), decoder.ip());
EXPECT_EQ(encoder.port(), decoder.port());
}
}
}
} |
285 | cpp | google/quiche | quic_packet_creator | quiche/quic/core/quic_packet_creator.cc | quiche/quic/core/quic_packet_creator_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_PACKET_CREATOR_H_
#define QUICHE_QUIC_CORE_QUIC_PACKET_CREATOR_H_
#include <cstddef>
#include <memory>
#include <optional>
#include <utility>
#include <vector>
#include "absl/base/attributes.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_coalesced_packet.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_circular_deque.h"
namespace quic {
namespace test {
class QuicPacketCreatorPeer;
}
class QUICHE_EXPORT QuicPacketCreator {
public:
class QUICHE_EXPORT DelegateInterface {
public:
virtual ~DelegateInterface() {}
virtual QuicPacketBuffer GetPacketBuffer() = 0;
virtual void OnSerializedPacket(SerializedPacket serialized_packet) = 0;
virtual void OnUnrecoverableError(QuicErrorCode error,
const std::string& error_details) = 0;
virtual bool ShouldGeneratePacket(HasRetransmittableData retransmittable,
IsHandshake handshake) = 0;
virtual void MaybeBundleOpportunistically(
TransmissionType transmission_type) = 0;
virtual QuicByteCount GetFlowControlSendWindowSize(QuicStreamId id) = 0;
virtual SerializedPacketFate GetSerializedPacketFate(
bool is_mtu_discovery, EncryptionLevel encryption_level) = 0;
};
class QUICHE_EXPORT DebugDelegate {
public:
virtual ~DebugDelegate() {}
virtual void OnFrameAddedToPacket(const QuicFrame& ) {}
virtual void OnStreamFrameCoalesced(const QuicStreamFrame& ) {}
};
class QUICHE_EXPORT ScopedPeerAddressContext {
public:
ScopedPeerAddressContext(QuicPacketCreator* creator,
QuicSocketAddress address,
const QuicConnectionId& client_connection_id,
const QuicConnectionId& server_connection_id);
~ScopedPeerAddressContext();
private:
QuicPacketCreator* creator_;
QuicSocketAddress old_peer_address_;
QuicConnectionId old_client_connection_id_;
QuicConnectionId old_server_connection_id_;
};
QuicPacketCreator(QuicConnectionId server_connection_id, QuicFramer* framer,
DelegateInterface* delegate);
QuicPacketCreator(QuicConnectionId server_connection_id, QuicFramer* framer,
QuicRandom* random, DelegateInterface* delegate);
QuicPacketCreator(const QuicPacketCreator&) = delete;
QuicPacketCreator& operator=(const QuicPacketCreator&) = delete;
~QuicPacketCreator();
void SetDiversificationNonce(const DiversificationNonce& nonce);
void UpdatePacketNumberLength(QuicPacketNumber least_packet_awaited_by_peer,
QuicPacketCount max_packets_in_flight);
void SkipNPacketNumbers(QuicPacketCount count,
QuicPacketNumber least_packet_awaited_by_peer,
QuicPacketCount max_packets_in_flight);
static size_t StreamFramePacketOverhead(
QuicTransportVersion version, uint8_t destination_connection_id_length,
uint8_t source_connection_id_length, bool include_version,
bool include_diversification_nonce,
QuicPacketNumberLength packet_number_length,
quiche::QuicheVariableLengthIntegerLength retry_token_length_length,
quiche::QuicheVariableLengthIntegerLength length_length,
QuicStreamOffset offset);
bool ConsumeDataToFillCurrentPacket(QuicStreamId id, size_t data_size,
QuicStreamOffset offset, bool fin,
bool needs_full_padding,
TransmissionType transmission_type,
QuicFrame* frame);
bool ConsumeCryptoDataToFillCurrentPacket(EncryptionLevel level,
size_t write_length,
QuicStreamOffset offset,
bool needs_full_padding,
TransmissionType transmission_type,
QuicFrame* frame);
bool HasRoomForStreamFrame(QuicStreamId id, QuicStreamOffset offset,
size_t data_size);
bool HasRoomForMessageFrame(QuicByteCount length);
void FlushCurrentPacket();
void CreateAndSerializeStreamFrame(QuicStreamId id, size_t write_length,
QuicStreamOffset iov_offset,
QuicStreamOffset stream_offset, bool fin,
TransmissionType transmission_type,
size_t* num_bytes_consumed);
bool HasPendingFrames() const;
std::string GetPendingFramesInfo() const;
bool HasPendingRetransmittableFrames() const;
bool HasPendingStreamFramesOfStream(QuicStreamId id) const;
size_t BytesFree() const;
size_t BytesFreeForPadding() const;
size_t ExpansionOnNewFrame() const;
static size_t ExpansionOnNewFrameWithLastFrame(const QuicFrame& last_frame,
QuicTransportVersion version);
size_t PacketSize() const;
bool AddFrame(const QuicFrame& frame, TransmissionType transmission_type);
bool AddPaddedSavedFrame(const QuicFrame& frame,
TransmissionType transmission_type);
std::unique_ptr<SerializedPacket> SerializeConnectivityProbingPacket();
std::unique_ptr<SerializedPacket>
SerializePathChallengeConnectivityProbingPacket(
const QuicPathFrameBuffer& payload);
std::unique_ptr<SerializedPacket>
SerializePathResponseConnectivityProbingPacket(
const quiche::QuicheCircularDeque<QuicPathFrameBuffer>& payloads,
const bool is_padded);
bool AddPathResponseFrame(const QuicPathFrameBuffer& data_buffer);
void AddPathChallengeFrame(const QuicPathFrameBuffer& payload);
static SerializedPacket NoPacket();
const QuicConnectionId& GetServerConnectionId() const {
return server_connection_id_;
}
const QuicConnectionId& GetClientConnectionId() const {
return client_connection_id_;
}
QuicConnectionId GetDestinationConnectionId() const;
QuicConnectionId GetSourceConnectionId() const;
uint8_t GetDestinationConnectionIdLength() const;
uint8_t GetSourceConnectionIdLength() const;
void SetServerConnectionIdIncluded(
QuicConnectionIdIncluded server_connection_id_included);
void SetServerConnectionId(QuicConnectionId server_connection_id);
void SetClientConnectionId(QuicConnectionId client_connection_id);
void set_encryption_level(EncryptionLevel level);
EncryptionLevel encryption_level() { return packet_.encryption_level; }
QuicPacketNumber packet_number() const { return packet_.packet_number; }
QuicByteCount max_packet_length() const { return max_packet_length_; }
bool has_ack() const { return packet_.has_ack; }
bool has_stop_waiting() const { return packet_.has_stop_waiting; }
void SetEncrypter(EncryptionLevel level,
std::unique_ptr<QuicEncrypter> encrypter);
bool CanSetMaxPacketLength() const;
void SetMaxPacketLength(QuicByteCount length);
void SetMaxDatagramFrameSize(QuicByteCount max_datagram_frame_size);
void SetSoftMaxPacketLength(QuicByteCount length);
void AddPendingPadding(QuicByteCount size);
void SetRetryToken(absl::string_view retry_token);
bool ConsumeRetransmittableControlFrame(const QuicFrame& frame);
QuicConsumedData ConsumeData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset,
StreamSendingState state);
QuicConsumedData ConsumeDataFastPath(QuicStreamId id, size_t write_length,
QuicStreamOffset offset, bool fin,
size_t total_bytes_consumed);
size_t ConsumeCryptoData(EncryptionLevel level, size_t write_length,
QuicStreamOffset offset);
void GenerateMtuDiscoveryPacket(QuicByteCount target_mtu);
bool FlushAckFrame(const QuicFrames& frames);
void AddRandomPadding();
void AttachPacketFlusher();
void Flush();
void SendRemainingPendingPadding();
void SetServerConnectionIdLength(uint32_t length);
void SetTransmissionType(TransmissionType type);
MessageStatus AddMessageFrame(QuicMessageId message_id,
absl::Span<quiche::QuicheMemSlice> message);
QuicPacketLength GetCurrentLargestMessagePayload() const;
QuicPacketLength GetGuaranteedLargestMessagePayload() const;
QuicPacketNumber NextSendingPacketNumber() const;
void set_debug_delegate(DebugDelegate* debug_delegate) {
debug_delegate_ = debug_delegate;
}
QuicByteCount pending_padding_bytes() const { return pending_padding_bytes_; }
ParsedQuicVersion version() const { return framer_->version(); }
QuicTransportVersion transport_version() const {
return framer_->transport_version();
}
static size_t MinPlaintextPacketSize(
const ParsedQuicVersion& version,
QuicPacketNumberLength packet_number_length);
bool PacketFlusherAttached() const;
void set_fully_pad_crypto_handshake_packets(bool new_value) {
fully_pad_crypto_handshake_packets_ = new_value;
}
bool fully_pad_crypto_handshake_packets() const {
return fully_pad_crypto_handshake_packets_;
}
size_t BuildPaddedPathChallengePacket(const QuicPacketHeader& header,
char* buffer, size_t packet_length,
const QuicPathFrameBuffer& payload,
EncryptionLevel level);
size_t BuildPathResponsePacket(
const QuicPacketHeader& header, char* buffer, size_t packet_length,
const quiche::QuicheCircularDeque<QuicPathFrameBuffer>& payloads,
const bool is_padded, EncryptionLevel level);
size_t BuildConnectivityProbingPacket(const QuicPacketHeader& header,
char* buffer, size_t packet_length,
EncryptionLevel level);
size_t SerializeCoalescedPacket(const QuicCoalescedPacket& coalesced,
char* buffer, size_t buffer_len);
bool HasSoftMaxPacketLength() const;
void SetDefaultPeerAddress(QuicSocketAddress address);
bool HasRetryToken() const;
const QuicSocketAddress& peer_address() const { return packet_.peer_address; }
private:
friend class test::QuicPacketCreatorPeer;
class QUICHE_EXPORT ScopedSerializationFailureHandler {
public:
explicit ScopedSerializationFailureHandler(QuicPacketCreator* creator);
~ScopedSerializationFailureHandler();
private:
QuicPacketCreator* creator_;
};
std::optional<size_t> MaybeBuildDataPacketWithChaosProtection(
const QuicPacketHeader& header, char* buffer);
void CreateStreamFrame(QuicStreamId id, size_t data_size,
QuicStreamOffset offset, bool fin, QuicFrame* frame);
bool CreateCryptoFrame(EncryptionLevel level, size_t write_length,
QuicStreamOffset offset, QuicFrame* frame);
void FillPacketHeader(QuicPacketHeader* header);
void MaybeAddPadding();
ABSL_MUST_USE_RESULT bool SerializePacket(
QuicOwnedPacketBuffer encrypted_buffer, size_t encrypted_buffer_len,
bool allow_padding);
void OnSerializedPacket();
void ClearPacket();
size_t ReserializeInitialPacketInCoalescedPacket(
const SerializedPacket& packet, size_t padding_size, char* buffer,
size_t buffer_len);
bool MaybeCoalesceStreamFrame(const QuicStreamFrame& frame);
bool RemoveSoftMaxPacketLength();
bool IncludeNonceInPublicHeader() const;
bool IncludeVersionInHeader() const;
QuicPacketNumberLength GetPacketNumberLength() const;
size_t PacketHeaderSize() const;
QuicConnectionIdIncluded GetDestinationConnectionIdIncluded() const;
QuicConnectionIdIncluded GetSourceConnectionIdIncluded() const;
quiche::QuicheVariableLengthIntegerLength GetRetryTokenLengthLength() const;
absl::string_view GetRetryToken() const;
quiche::QuicheVariableLengthIntegerLength GetLengthLength() const;
bool StreamFrameIsClientHello(const QuicStreamFrame& frame) const;
bool HasIetfLongHeader() const;
size_t GetSerializedFrameLength(const QuicFrame& frame);
void MaybeAddExtraPaddingForHeaderProtection();
bool AttemptingToSendUnencryptedStreamData();
bool AddPaddedFrameWithRetry(const QuicFrame& frame);
void MaybeBundleOpportunistically();
DelegateInterface* delegate_;
DebugDelegate* debug_delegate_;
QuicFramer* framer_;
QuicRandom* random_;
bool have_diversification_nonce_;
DiversificationNonce diversification_nonce_;
QuicByteCount max_packet_length_;
QuicByteCount next_max_packet_length_;
size_t max_plaintext_size_;
QuicConnectionIdIncluded server_connection_id_included_;
QuicFrames queued_frames_;
size_t packet_size_;
QuicConnectionId server_connection_id_;
QuicConnectionId client_connection_id_;
SerializedPacket packet_;
std::string retry_token_;
QuicByteCount pending_padding_bytes_;
bool needs_full_padding_;
TransmissionType next_transmission_type_;
bool flusher_attached_;
bool fully_pad_crypto_handshake_packets_;
QuicPacketNumber write_start_packet_number_;
QuicByteCount latched_hard_max_packet_length_;
QuicByteCount max_datagram_frame_size_;
};
}
#endif
#include "quiche/quic/core/quic_packet_creator.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "absl/base/macros.h"
#include "absl/base/optimization.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_join.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/crypto_protocol.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/frames/quic_padding_frame.h"
#include "quiche/quic/core/frames/quic_path_challenge_frame.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_chaos_protector.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_exported_stats.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_server_stats.h"
#include "quiche/common/print_elements.h"
namespace quic {
namespace {
QuicLongHeaderType EncryptionlevelToLongHeaderType(EncryptionLevel level) {
switch (level) {
case ENCRYPTION_INITIAL:
return INITIAL;
case ENCRYPTION_HANDSHAKE:
return HANDSHAKE;
case ENCRYPTION_ZERO_RTT:
return ZERO_RTT_PROTECTED;
case ENCRYPTION_FORWARD_SECURE:
QUIC_BUG(quic_bug_12398_1)
<< "Try to derive long header type for packet with encryption level: "
<< level;
return INVALID_PACKET_TYPE;
default: | #include "quiche/quic/core/quic_packet_creator.h"
#include <cstdint>
#include <limits>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/frames/quic_stream_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_data_writer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_framer_peer.h"
#include "quiche/quic/test_tools/quic_packet_creator_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/quic/test_tools/simple_data_producer.h"
#include "quiche/quic/test_tools/simple_quic_framer.h"
#include "quiche/common/simple_buffer_allocator.h"
#include "quiche/common/test_tools/quiche_test_utils.h"
using ::testing::_;
using ::testing::AtLeast;
using ::testing::DoAll;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Return;
using ::testing::SaveArg;
using ::testing::StrictMock;
namespace quic {
namespace test {
namespace {
const QuicPacketNumber kPacketNumber = QuicPacketNumber(UINT64_C(0x12345678));
QuicConnectionId CreateTestConnectionId() {
return TestConnectionId(UINT64_C(0xFEDCBA9876543210));
}
struct TestParams {
TestParams(ParsedQuicVersion version, bool version_serialization)
: version(version), version_serialization(version_serialization) {}
ParsedQuicVersion version;
bool version_serialization;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(ParsedQuicVersionToString(p.version), "_",
(p.version_serialization ? "Include" : "No"), "Version");
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
ParsedQuicVersionVector all_supported_versions = AllSupportedVersions();
for (size_t i = 0; i < all_supported_versions.size(); ++i) {
params.push_back(TestParams(all_supported_versions[i], true));
params.push_back(TestParams(all_supported_versions[i], false));
}
return params;
}
class MockDebugDelegate : public QuicPacketCreator::DebugDelegate {
public:
~MockDebugDelegate() override = default;
MOCK_METHOD(void, OnFrameAddedToPacket, (const QuicFrame& frame), (override));
MOCK_METHOD(void, OnStreamFrameCoalesced, (const QuicStreamFrame& frame),
(override));
};
class TestPacketCreator : public QuicPacketCreator {
public:
TestPacketCreator(QuicConnectionId connection_id, QuicFramer* framer,
DelegateInterface* delegate, SimpleDataProducer* producer)
: QuicPacketCreator(connection_id, framer, delegate),
producer_(producer),
version_(framer->version()) {}
bool ConsumeDataToFillCurrentPacket(QuicStreamId id, absl::string_view data,
QuicStreamOffset offset, bool fin,
bool needs_full_padding,
TransmissionType transmission_type,
QuicFrame* frame) {
if (!data.empty()) {
producer_->SaveStreamData(id, data);
}
return QuicPacketCreator::ConsumeDataToFillCurrentPacket(
id, data.length(), offset, fin, needs_full_padding, transmission_type,
frame);
}
void StopSendingVersion() { set_encryption_level(ENCRYPTION_FORWARD_SECURE); }
SimpleDataProducer* producer_;
ParsedQuicVersion version_;
};
class QuicPacketCreatorTest : public QuicTestWithParam<TestParams> {
public:
void ClearSerializedPacketForTests(SerializedPacket ) {
}
void SaveSerializedPacket(SerializedPacket serialized_packet) {
serialized_packet_.reset(CopySerializedPacket(
serialized_packet, &allocator_, true));
}
void DeleteSerializedPacket() { serialized_packet_ = nullptr; }
protected:
QuicPacketCreatorTest()
: connection_id_(TestConnectionId(2)),
server_framer_(SupportedVersions(GetParam().version), QuicTime::Zero(),
Perspective::IS_SERVER, connection_id_.length()),
client_framer_(SupportedVersions(GetParam().version), QuicTime::Zero(),
Perspective::IS_CLIENT, connection_id_.length()),
data_("foo"),
creator_(connection_id_, &client_framer_, &delegate_, &producer_) {
EXPECT_CALL(delegate_, GetPacketBuffer())
.WillRepeatedly(Return(QuicPacketBuffer()));
EXPECT_CALL(delegate_, GetSerializedPacketFate(_, _))
.WillRepeatedly(Return(SEND_TO_WRITER));
creator_.SetEncrypter(
ENCRYPTION_INITIAL,
std::make_unique<TaggingEncrypter>(ENCRYPTION_INITIAL));
creator_.SetEncrypter(
ENCRYPTION_HANDSHAKE,
std::make_unique<TaggingEncrypter>(ENCRYPTION_HANDSHAKE));
creator_.SetEncrypter(
ENCRYPTION_ZERO_RTT,
std::make_unique<TaggingEncrypter>(ENCRYPTION_ZERO_RTT));
creator_.SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<TaggingEncrypter>(ENCRYPTION_FORWARD_SECURE));
client_framer_.set_visitor(&framer_visitor_);
server_framer_.set_visitor(&framer_visitor_);
client_framer_.set_data_producer(&producer_);
if (server_framer_.version().KnowsWhichDecrypterToUse()) {
server_framer_.InstallDecrypter(ENCRYPTION_INITIAL,
std::make_unique<TaggingDecrypter>());
server_framer_.InstallDecrypter(ENCRYPTION_ZERO_RTT,
std::make_unique<TaggingDecrypter>());
server_framer_.InstallDecrypter(ENCRYPTION_HANDSHAKE,
std::make_unique<TaggingDecrypter>());
server_framer_.InstallDecrypter(ENCRYPTION_FORWARD_SECURE,
std::make_unique<TaggingDecrypter>());
} else {
server_framer_.SetDecrypter(ENCRYPTION_INITIAL,
std::make_unique<TaggingDecrypter>());
server_framer_.SetAlternativeDecrypter(
ENCRYPTION_FORWARD_SECURE, std::make_unique<TaggingDecrypter>(),
false);
}
}
~QuicPacketCreatorTest() override {}
SerializedPacket SerializeAllFrames(const QuicFrames& frames) {
SerializedPacket packet = QuicPacketCreatorPeer::SerializeAllFrames(
&creator_, frames, buffer_, kMaxOutgoingPacketSize);
EXPECT_EQ(QuicPacketCreatorPeer::GetEncryptionLevel(&creator_),
packet.encryption_level);
return packet;
}
void ProcessPacket(const SerializedPacket& packet) {
QuicEncryptedPacket encrypted_packet(packet.encrypted_buffer,
packet.encrypted_length);
server_framer_.ProcessPacket(encrypted_packet);
}
void CheckStreamFrame(const QuicFrame& frame, QuicStreamId stream_id,
const std::string& data, QuicStreamOffset offset,
bool fin) {
EXPECT_EQ(STREAM_FRAME, frame.type);
EXPECT_EQ(stream_id, frame.stream_frame.stream_id);
char buf[kMaxOutgoingPacketSize];
QuicDataWriter writer(kMaxOutgoingPacketSize, buf, quiche::HOST_BYTE_ORDER);
if (frame.stream_frame.data_length > 0) {
producer_.WriteStreamData(stream_id, frame.stream_frame.offset,
frame.stream_frame.data_length, &writer);
}
EXPECT_EQ(data, absl::string_view(buf, frame.stream_frame.data_length));
EXPECT_EQ(offset, frame.stream_frame.offset);
EXPECT_EQ(fin, frame.stream_frame.fin);
}
size_t GetPacketHeaderOverhead(QuicTransportVersion version) {
return GetPacketHeaderSize(
version, creator_.GetDestinationConnectionIdLength(),
creator_.GetSourceConnectionIdLength(),
QuicPacketCreatorPeer::SendVersionInPacket(&creator_),
!kIncludeDiversificationNonce,
QuicPacketCreatorPeer::GetPacketNumberLength(&creator_),
QuicPacketCreatorPeer::GetRetryTokenLengthLength(&creator_), 0,
QuicPacketCreatorPeer::GetLengthLength(&creator_));
}
size_t GetEncryptionOverhead() {
return creator_.max_packet_length() -
client_framer_.GetMaxPlaintextSize(creator_.max_packet_length());
}
size_t GetStreamFrameOverhead(QuicTransportVersion version) {
return QuicFramer::GetMinStreamFrameSize(
version, GetNthClientInitiatedStreamId(1), kOffset, true,
0);
}
bool IsDefaultTestConfiguration() {
TestParams p = GetParam();
return p.version == AllSupportedVersions()[0] && p.version_serialization;
}
QuicStreamId GetNthClientInitiatedStreamId(int n) const {
return QuicUtils::GetFirstBidirectionalStreamId(
creator_.transport_version(), Perspective::IS_CLIENT) +
n * 2;
}
void TestChaosProtection(bool enabled);
static constexpr QuicStreamOffset kOffset = 0u;
char buffer_[kMaxOutgoingPacketSize];
QuicConnectionId connection_id_;
QuicFrames frames_;
QuicFramer server_framer_;
QuicFramer client_framer_;
StrictMock<MockFramerVisitor> framer_visitor_;
StrictMock<MockPacketCreatorDelegate> delegate_;
std::string data_;
TestPacketCreator creator_;
std::unique_ptr<SerializedPacket> serialized_packet_;
SimpleDataProducer producer_;
quiche::SimpleBufferAllocator allocator_;
};
INSTANTIATE_TEST_SUITE_P(QuicPacketCreatorTests, QuicPacketCreatorTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QuicPacketCreatorTest, SerializeFrames) {
ParsedQuicVersion version = client_framer_.version();
for (int i = ENCRYPTION_INITIAL; i < NUM_ENCRYPTION_LEVELS; ++i) {
EncryptionLevel level = static_cast<EncryptionLevel>(i);
bool has_ack = false, has_stream = false;
creator_.set_encryption_level(level);
size_t payload_len = 0;
if (level != ENCRYPTION_ZERO_RTT) {
frames_.push_back(QuicFrame(new QuicAckFrame(InitAckFrame(1))));
has_ack = true;
payload_len += version.UsesTls() ? 12 : 6;
}
if (level != ENCRYPTION_INITIAL && level != ENCRYPTION_HANDSHAKE) {
QuicStreamId stream_id = QuicUtils::GetFirstBidirectionalStreamId(
client_framer_.transport_version(), Perspective::IS_CLIENT);
frames_.push_back(QuicFrame(
QuicStreamFrame(stream_id, false, 0u, absl::string_view())));
has_stream = true;
payload_len += 2;
}
SerializedPacket serialized = SerializeAllFrames(frames_);
EXPECT_EQ(level, serialized.encryption_level);
if (level != ENCRYPTION_ZERO_RTT) {
delete frames_[0].ack_frame;
}
frames_.clear();
ASSERT_GT(payload_len, 0);
size_t min_payload = version.UsesTls() ? 3 : 7;
bool need_padding =
(version.HasHeaderProtection() && (payload_len < min_payload));
{
InSequence s;
EXPECT_CALL(framer_visitor_, OnPacket());
EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_));
EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_));
EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_, _));
EXPECT_CALL(framer_visitor_, OnPacketHeader(_));
if (need_padding) {
EXPECT_CALL(framer_visitor_, OnPaddingFrame(_));
}
if (has_ack) {
EXPECT_CALL(framer_visitor_, OnAckFrameStart(_, _))
.WillOnce(Return(true));
EXPECT_CALL(framer_visitor_,
OnAckRange(QuicPacketNumber(1), QuicPacketNumber(2)))
.WillOnce(Return(true));
EXPECT_CALL(framer_visitor_, OnAckFrameEnd(QuicPacketNumber(1), _))
.WillOnce(Return(true));
}
if (has_stream) {
EXPECT_CALL(framer_visitor_, OnStreamFrame(_));
}
EXPECT_CALL(framer_visitor_, OnPacketComplete());
}
ProcessPacket(serialized);
}
}
TEST_P(QuicPacketCreatorTest, SerializeConnectionClose) {
QuicConnectionCloseFrame* frame = new QuicConnectionCloseFrame(
creator_.transport_version(), QUIC_NO_ERROR, NO_IETF_QUIC_ERROR, "error",
0);
QuicFrames frames;
frames.push_back(QuicFrame(frame));
SerializedPacket serialized = SerializeAllFrames(frames);
EXPECT_EQ(ENCRYPTION_INITIAL, serialized.encryption_level);
ASSERT_EQ(QuicPacketNumber(1u), serialized.packet_number);
ASSERT_EQ(QuicPacketNumber(1u), creator_.packet_number());
InSequence s;
EXPECT_CALL(framer_visitor_, OnPacket());
EXPECT_CALL(framer_visitor_, OnUnauthenticatedPublicHeader(_));
EXPECT_CALL(framer_visitor_, OnUnauthenticatedHeader(_));
EXPECT_CALL(framer_visitor_, OnDecryptedPacket(_, _));
EXPECT_CALL(framer_visitor_, OnPacketHeader(_));
EXPECT_CALL(framer_visitor_, OnConnectionCloseFrame(_));
EXPECT_CALL(framer_visitor_, OnPacketComplete());
ProcessPacket(serialized);
}
TEST_P(QuicPacketCreatorTest, SerializePacketWithPadding) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
creator_.AddFrame(QuicFrame(QuicWindowUpdateFrame()), NOT_RETRANSMISSION);
creator_.AddFrame(QuicFrame(QuicPaddingFrame()), NOT_RETRANSMISSION);
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_->encrypted_length);
DeleteSerializedPacket();
}
TEST_P(QuicPacketCreatorTest, SerializeLargerPacketWithPadding) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
const QuicByteCount packet_size = 100 + kDefaultMaxPacketSize;
creator_.SetMaxPacketLength(packet_size);
creator_.AddFrame(QuicFrame(QuicWindowUpdateFrame()), NOT_RETRANSMISSION);
creator_.AddFrame(QuicFrame(QuicPaddingFrame()), NOT_RETRANSMISSION);
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
EXPECT_EQ(packet_size, serialized_packet_->encrypted_length);
DeleteSerializedPacket();
}
TEST_P(QuicPacketCreatorTest, IncreaseMaxPacketLengthWithFramesPending) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
const QuicByteCount packet_size = 100 + kDefaultMaxPacketSize;
creator_.AddFrame(QuicFrame(QuicWindowUpdateFrame()), NOT_RETRANSMISSION);
creator_.SetMaxPacketLength(packet_size);
creator_.AddFrame(QuicFrame(QuicPaddingFrame()), NOT_RETRANSMISSION);
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_->encrypted_length);
DeleteSerializedPacket();
creator_.AddFrame(QuicFrame(QuicWindowUpdateFrame()), NOT_RETRANSMISSION);
creator_.AddFrame(QuicFrame(QuicPaddingFrame()), NOT_RETRANSMISSION);
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
EXPECT_EQ(packet_size, serialized_packet_->encrypted_length);
EXPECT_EQ(packet_size, serialized_packet_->encrypted_length);
DeleteSerializedPacket();
}
TEST_P(QuicPacketCreatorTest, ConsumeCryptoDataToFillCurrentPacket) {
std::string data = "crypto data";
QuicFrame frame;
ASSERT_TRUE(creator_.ConsumeCryptoDataToFillCurrentPacket(
ENCRYPTION_INITIAL, data.length(), 0,
true, NOT_RETRANSMISSION, &frame));
EXPECT_EQ(frame.crypto_frame->data_length, data.length());
EXPECT_TRUE(creator_.HasPendingFrames());
}
TEST_P(QuicPacketCreatorTest, ConsumeDataToFillCurrentPacket) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
QuicFrame frame;
QuicStreamId stream_id = QuicUtils::GetFirstBidirectionalStreamId(
client_framer_.transport_version(), Perspective::IS_CLIENT);
const std::string data("test");
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
stream_id, data, 0u, false, false, NOT_RETRANSMISSION, &frame));
size_t consumed = frame.stream_frame.data_length;
EXPECT_EQ(4u, consumed);
CheckStreamFrame(frame, stream_id, "test", 0u, false);
EXPECT_TRUE(creator_.HasPendingFrames());
}
TEST_P(QuicPacketCreatorTest, ConsumeDataFin) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
QuicFrame frame;
QuicStreamId stream_id = QuicUtils::GetFirstBidirectionalStreamId(
client_framer_.transport_version(), Perspective::IS_CLIENT);
const std::string data("test");
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
stream_id, data, 0u, true, false, NOT_RETRANSMISSION, &frame));
size_t consumed = frame.stream_frame.data_length;
EXPECT_EQ(4u, consumed);
CheckStreamFrame(frame, stream_id, "test", 0u, true);
EXPECT_TRUE(creator_.HasPendingFrames());
}
TEST_P(QuicPacketCreatorTest, ConsumeDataFinOnly) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
QuicFrame frame;
QuicStreamId stream_id = QuicUtils::GetFirstBidirectionalStreamId(
client_framer_.transport_version(), Perspective::IS_CLIENT);
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
stream_id, {}, 0u, true, false, NOT_RETRANSMISSION, &frame));
size_t consumed = frame.stream_frame.data_length;
EXPECT_EQ(0u, consumed);
CheckStreamFrame(frame, stream_id, std::string(), 0u, true);
EXPECT_TRUE(creator_.HasPendingFrames());
EXPECT_TRUE(absl::StartsWith(creator_.GetPendingFramesInfo(),
"type { STREAM_FRAME }"));
}
TEST_P(QuicPacketCreatorTest, CreateAllFreeBytesForStreamFrames) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
const size_t overhead =
GetPacketHeaderOverhead(client_framer_.transport_version()) +
GetEncryptionOverhead();
for (size_t i = overhead +
QuicPacketCreator::MinPlaintextPacketSize(
client_framer_.version(),
QuicPacketCreatorPeer::GetPacketNumberLength(&creator_));
i < overhead + 100; ++i) {
SCOPED_TRACE(i);
creator_.SetMaxPacketLength(i);
const bool should_have_room =
i >
overhead + GetStreamFrameOverhead(client_framer_.transport_version());
ASSERT_EQ(should_have_room,
creator_.HasRoomForStreamFrame(GetNthClientInitiatedStreamId(1),
kOffset, 0xffff));
if (should_have_room) {
QuicFrame frame;
const std::string data("testdata");
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillRepeatedly(Invoke(
this, &QuicPacketCreatorTest::ClearSerializedPacketForTests));
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
GetNthClientInitiatedStreamId(1), data, kOffset, false, false,
NOT_RETRANSMISSION, &frame));
size_t bytes_consumed = frame.stream_frame.data_length;
EXPECT_LT(0u, bytes_consumed);
creator_.FlushCurrentPacket();
}
}
}
TEST_P(QuicPacketCreatorTest, StreamFrameConsumption) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
const size_t overhead =
GetPacketHeaderOverhead(client_framer_.transport_version()) +
GetEncryptionOverhead() +
GetStreamFrameOverhead(client_framer_.transport_version());
size_t capacity = kDefaultMaxPacketSize - overhead;
for (int delta = -5; delta <= 5; ++delta) {
std::string data(capacity + delta, 'A');
size_t bytes_free = delta > 0 ? 0 : 0 - delta;
QuicFrame frame;
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
GetNthClientInitiatedStreamId(1), data, kOffset, false, false,
NOT_RETRANSMISSION, &frame));
EXPECT_EQ(2u, creator_.ExpansionOnNewFrame());
size_t expected_bytes_free = bytes_free < 3 ? 0 : bytes_free - 2;
EXPECT_EQ(expected_bytes_free, creator_.BytesFree()) << "delta: " << delta;
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
DeleteSerializedPacket();
}
}
TEST_P(QuicPacketCreatorTest, CryptoStreamFramePacketPadding) {
SetQuicFlag(quic_enforce_single_packet_chlo, false);
size_t overhead =
GetPacketHeaderOverhead(client_framer_.transport_version()) +
GetEncryptionOverhead();
if (QuicVersionUsesCryptoFrames(client_framer_.transport_version())) {
overhead +=
QuicFramer::GetMinCryptoFrameSize(kOffset, kMaxOutgoingPacketSize);
} else {
overhead += QuicFramer::GetMinStreamFrameSize(
client_framer_.transport_version(), GetNthClientInitiatedStreamId(1),
kOffset, false, 0);
}
ASSERT_GT(kMaxOutgoingPacketSize, overhead);
size_t capacity = kDefaultMaxPacketSize - overhead;
for (int delta = -5; delta <= 5; ++delta) {
SCOPED_TRACE(delta);
std::string data(capacity + delta, 'A');
size_t bytes_free = delta > 0 ? 0 : 0 - delta;
QuicFrame frame;
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillRepeatedly(
Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
if (client_framer_.version().CanSendCoalescedPackets()) {
EXPECT_CALL(delegate_, GetSerializedPacketFate(_, _))
.WillRepeatedly(Return(COALESCE));
}
if (!QuicVersionUsesCryptoFrames(client_framer_.transport_version())) {
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
QuicUtils::GetCryptoStreamId(client_framer_.transport_version()),
data, kOffset, false, true, NOT_RETRANSMISSION, &frame));
size_t bytes_consumed = frame.stream_frame.data_length;
EXPECT_LT(0u, bytes_consumed);
} else {
producer_.SaveCryptoData(ENCRYPTION_INITIAL, kOffset, data);
ASSERT_TRUE(creator_.ConsumeCryptoDataToFillCurrentPacket(
ENCRYPTION_INITIAL, data.length(), kOffset,
true, NOT_RETRANSMISSION, &frame));
size_t bytes_consumed = frame.crypto_frame->data_length;
EXPECT_LT(0u, bytes_consumed);
}
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
if (client_framer_.version().CanSendCoalescedPackets()) {
EXPECT_EQ(kDefaultMaxPacketSize - bytes_free,
serialized_packet_->encrypted_length);
} else {
EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_->encrypted_length);
}
DeleteSerializedPacket();
}
}
TEST_P(QuicPacketCreatorTest, NonCryptoStreamFramePacketNonPadding) {
creator_.set_encryption_level(ENCRYPTION_FORWARD_SECURE);
const size_t overhead =
GetPacketHeaderOverhead(client_framer_.transport_version()) +
GetEncryptionOverhead() +
GetStreamFrameOverhead(client_framer_.transport_version());
ASSERT_GT(kDefaultMaxPacketSize, overhead);
size_t capacity = kDefaultMaxPacketSize - overhead;
for (int delta = -5; delta <= 5; ++delta) {
std::string data(capacity + delta, 'A');
size_t bytes_free = delta > 0 ? 0 : 0 - delta;
QuicFrame frame;
EXPECT_CALL(delegate_, OnSerializedPacket(_))
.WillOnce(Invoke(this, &QuicPacketCreatorTest::SaveSerializedPacket));
ASSERT_TRUE(creator_.ConsumeDataToFillCurrentPacket(
GetNthClientInitiatedStreamId(1), data, kOffset, false, false,
NOT_RETRANSMISSION, &frame));
size_t bytes_consumed = frame.stream_frame.data_length;
EXPECT_LT(0u, bytes_consumed);
creator_.FlushCurrentPacket();
ASSERT_TRUE(serialized_packet_->encrypted_buffer);
if (bytes_free > 0) {
EXPECT_EQ(kDefaultMaxPacketSize - bytes_free,
serialized_packet_->encrypted_length);
} else {
EXPECT_EQ(kDefaultMaxPacketSize, serialized_packet_->encrypted_length);
}
DeleteSerializedPacket();
}
}
TEST_P(QuicPacketCreatorTest, BuildPathChallengePacket) {
if (!VersionHasIetfQuicFrames(creator_.transport_version())) {
return;
}
QuicPacketHeader header;
header.destination_connection_id = CreateTestConnectionId();
header.reset_flag = false;
header.version_flag = false;
header.packet_number = kPacketNumber;
MockRandom randomizer;
QuicPathFrameBuffer payload;
randomizer.RandBytes(payload.data(), payload.size());
unsigned char packet[] = {
0x43,
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
0x12, 0x34, 0x56, 0x78,
0x1a,
'r', 'r', 'r', 'r', 'r', 'r', 'r', 'r',
0x00,
0x00, 0x00, 0x00, 0x00
};
std::unique_ptr<char[]> buffer(new char[kMaxOutgoingPacketSize]);
size_t length = creator_.BuildPaddedPathChallengePacket(
header, buffer.get(), ABSL_ARRAYSIZE(packet), payload,
ENCRYPTION_INITIAL);
EXPECT_EQ(length, ABSL_ARRAYSIZE(packet));
EXPECT_EQ(kQuicPathFrameBufferSize, payload.size());
QuicPacket data(creator_.transport_version(), buffer.release(), length, true,
header);
quiche::test::CompareCharArraysWithHexError(
"constructed packet", data.data(), data.length(),
reinterpret_cast<char*>(packet), ABSL_ARRAYSIZE(packet));
}
TEST_P(QuicPacketCreatorTest, BuildConnectivityProbingPacket) {
QuicPacketHeader header;
header.destination_connection_id = CreateTestConnectionId();
header.reset_flag = false;
header.version_flag = false;
header.packet_number = kPacketNumber;
unsigned char packet[] = {
0x43,
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
0x12, 0x34, 0x56, 0x78,
0x07,
0x00,
0x00, 0x00, 0x00, 0x00
};
unsigned char packet99[] = {
0x43,
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
0x12, 0x34, 0x56, 0x78,
0x01,
0x00,
0x00, 0x00, 0x00, 0x00
};
unsigned char* p = packet;
size_t packet_size = ABSL_ARRAYSIZE(packet);
if (creator_.version().HasIetfQuicFrames()) {
p = packet99;
packet_size = ABSL_ARRAYSIZE(packet99);
}
std::unique_ptr<char[]> buffer(new char[kMaxOutgoingPacketSize]);
size_t length = creator_.BuildConnectivityProbingPacket(
header, buffer.get(), packet_size, ENCRYPTION_INITIAL);
EXPECT_NE(0u, length);
QuicPacket data(creator_.transport_version(), buffer.release(), length, true,
header);
quiche::test::CompareCharArraysWithHexError(
"constructed packet", data.data(), data.length(),
reinterpret_cast<char*>(p), packet_size);
}
TEST_P(QuicPacketCreatorTest, BuildPathResponsePacket1ResponseUnpadded) {
if (!VersionHasIetfQuicFrames(creator_.transport_version())) {
return;
}
QuicPacketHeader header;
header.destination_connection_id = CreateTestConnectionId();
header.reset_flag = false;
header.version_flag = false;
header.packet_number = kPacketNumber;
QuicPathFrameBuffer payload0 = {
{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}};
unsigned char packet[] = {
0x43,
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
0x12, 0x34, 0x56, 0x78,
0x1b,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
};
std::unique_ptr<char[]> buffer(new char[kMaxOutgoingPacketSize]);
quiche::QuicheCircularDeque<QuicPathFrameBuffer> payloads;
payloads.push_back(payload0);
size_t length = creator_.BuildPathResponsePacket(
header, buffer.get(), ABSL_ARRAYSIZE(packet), payloads,
false, ENCRYPTION_INITIAL);
EXPECT_EQ(length, ABSL_ARRAYSIZE(packet));
QuicPacket data(creator_.transport_version(), buffer.release(), length, true,
header);
quiche::test::CompareCharArraysWithHexError(
"constructed packet", data.data(), data.length(),
reinterpret_cast<char*>(packet), ABSL_ARRAYSIZE(packet));
}
TEST_P(QuicPacketCreatorTest, BuildPathResponsePacket1ResponsePadded) {
if (!VersionHasIetfQuicFrames(creator_.transport_version())) {
return;
}
QuicPacketHeader header;
header.destination_connection_id = CreateTestConnectionId();
header.reset_flag = false;
header.version_flag = false;
header.packet_number = kPacketNumber;
QuicPathFrameBuffer payload0 = {
{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}};
unsigned char packet[] = {
0x43,
0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
0x12, 0x34, 0x56, 0x78,
0x1b,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x00, 0x00, 0x00, 0x00, 0x00
};
std::unique_ptr<char[]> buffer(new char[kMaxOutgoingPacketSize]); |
286 | cpp | google/quiche | quic_stream_id_manager | quiche/quic/core/quic_stream_id_manager.cc | quiche/quic/core/quic_stream_id_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_ID_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_STREAM_ID_MANAGER_H_
#include "absl/container/flat_hash_set.h"
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace test {
class QuicSessionPeer;
class QuicStreamIdManagerPeer;
}
class QUICHE_EXPORT QuicStreamIdManager {
public:
class QUICHE_EXPORT DelegateInterface {
public:
virtual ~DelegateInterface() = default;
virtual bool CanSendMaxStreams() = 0;
virtual void SendMaxStreams(QuicStreamCount stream_count,
bool unidirectional) = 0;
};
QuicStreamIdManager(DelegateInterface* delegate, bool unidirectional,
Perspective perspective, ParsedQuicVersion version,
QuicStreamCount max_allowed_outgoing_streams,
QuicStreamCount max_allowed_incoming_streams);
~QuicStreamIdManager();
std::string DebugString() const {
return absl::StrCat(
" { unidirectional_: ", unidirectional_,
", perspective: ", perspective_,
", outgoing_max_streams_: ", outgoing_max_streams_,
", next_outgoing_stream_id_: ", next_outgoing_stream_id_,
", outgoing_stream_count_: ", outgoing_stream_count_,
", incoming_actual_max_streams_: ", incoming_actual_max_streams_,
", incoming_advertised_max_streams_: ",
incoming_advertised_max_streams_,
", incoming_stream_count_: ", incoming_stream_count_,
", available_streams_.size(): ", available_streams_.size(),
", largest_peer_created_stream_id_: ", largest_peer_created_stream_id_,
" }");
}
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame,
std::string* error_details);
bool CanOpenNextOutgoingStream() const;
void SendMaxStreamsFrame();
void OnStreamClosed(QuicStreamId stream_id);
QuicStreamId GetNextOutgoingStreamId();
void SetMaxOpenIncomingStreams(QuicStreamCount max_open_streams);
bool MaybeAllowNewOutgoingStreams(QuicStreamCount max_open_streams);
bool MaybeIncreaseLargestPeerStreamId(const QuicStreamId stream_id,
std::string* error_details);
bool IsAvailableStream(QuicStreamId id) const;
void StopIncreasingIncomingMaxStreams() {
stop_increasing_incoming_max_streams_ = true;
}
QuicStreamCount incoming_initial_max_open_streams() const {
return incoming_initial_max_open_streams_;
}
QuicStreamId next_outgoing_stream_id() const {
return next_outgoing_stream_id_;
}
QuicStreamCount available_incoming_streams() const;
QuicStreamId largest_peer_created_stream_id() const {
return largest_peer_created_stream_id_;
}
QuicStreamCount outgoing_max_streams() const { return outgoing_max_streams_; }
QuicStreamCount incoming_actual_max_streams() const {
return incoming_actual_max_streams_;
}
QuicStreamCount incoming_advertised_max_streams() const {
return incoming_advertised_max_streams_;
}
QuicStreamCount outgoing_stream_count() const {
return outgoing_stream_count_;
}
void MaybeSendMaxStreamsFrame();
private:
friend class test::QuicSessionPeer;
friend class test::QuicStreamIdManagerPeer;
QuicStreamId GetFirstOutgoingStreamId() const;
QuicStreamId GetFirstIncomingStreamId() const;
DelegateInterface* delegate_;
const bool unidirectional_;
const Perspective perspective_;
const ParsedQuicVersion version_;
QuicStreamCount outgoing_max_streams_;
QuicStreamId next_outgoing_stream_id_;
QuicStreamCount outgoing_stream_count_;
QuicStreamCount incoming_actual_max_streams_;
QuicStreamCount incoming_advertised_max_streams_;
QuicStreamCount incoming_initial_max_open_streams_;
QuicStreamCount incoming_stream_count_;
absl::flat_hash_set<QuicStreamId> available_streams_;
QuicStreamId largest_peer_created_stream_id_;
bool stop_increasing_incoming_max_streams_;
};
}
#endif
#include "quiche/quic/core/quic_stream_id_manager.h"
#include <algorithm>
#include <cstdint>
#include <string>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/quic_connection.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
#define ENDPOINT \
(perspective_ == Perspective::IS_SERVER ? " Server: " : " Client: ")
QuicStreamIdManager::QuicStreamIdManager(
DelegateInterface* delegate, bool unidirectional, Perspective perspective,
ParsedQuicVersion version, QuicStreamCount max_allowed_outgoing_streams,
QuicStreamCount max_allowed_incoming_streams)
: delegate_(delegate),
unidirectional_(unidirectional),
perspective_(perspective),
version_(version),
outgoing_max_streams_(max_allowed_outgoing_streams),
next_outgoing_stream_id_(GetFirstOutgoingStreamId()),
outgoing_stream_count_(0),
incoming_actual_max_streams_(max_allowed_incoming_streams),
incoming_advertised_max_streams_(max_allowed_incoming_streams),
incoming_initial_max_open_streams_(max_allowed_incoming_streams),
incoming_stream_count_(0),
largest_peer_created_stream_id_(
QuicUtils::GetInvalidStreamId(version.transport_version)),
stop_increasing_incoming_max_streams_(false) {}
QuicStreamIdManager::~QuicStreamIdManager() {}
bool QuicStreamIdManager::OnStreamsBlockedFrame(
const QuicStreamsBlockedFrame& frame, std::string* error_details) {
QUICHE_DCHECK_EQ(frame.unidirectional, unidirectional_);
if (frame.stream_count > incoming_advertised_max_streams_) {
*error_details = absl::StrCat(
"StreamsBlockedFrame's stream count ", frame.stream_count,
" exceeds incoming max stream ", incoming_advertised_max_streams_);
return false;
}
QUICHE_DCHECK_LE(incoming_advertised_max_streams_,
incoming_actual_max_streams_);
if (incoming_advertised_max_streams_ == incoming_actual_max_streams_) {
return true;
}
if (frame.stream_count < incoming_actual_max_streams_ &&
delegate_->CanSendMaxStreams()) {
SendMaxStreamsFrame();
}
return true;
}
bool QuicStreamIdManager::MaybeAllowNewOutgoingStreams(
QuicStreamCount max_open_streams) {
if (max_open_streams <= outgoing_max_streams_) {
return false;
}
outgoing_max_streams_ =
std::min(max_open_streams, QuicUtils::GetMaxStreamCount());
return true;
}
void QuicStreamIdManager::SetMaxOpenIncomingStreams(
QuicStreamCount max_open_streams) {
QUIC_BUG_IF(quic_bug_12413_1, incoming_stream_count_ > 0)
<< "non-zero incoming stream count " << incoming_stream_count_
<< " when setting max incoming stream to " << max_open_streams;
QUIC_DLOG_IF(WARNING, incoming_initial_max_open_streams_ != max_open_streams)
<< absl::StrCat(unidirectional_ ? "unidirectional " : "bidirectional: ",
"incoming stream limit changed from ",
incoming_initial_max_open_streams_, " to ",
max_open_streams);
incoming_actual_max_streams_ = max_open_streams;
incoming_advertised_max_streams_ = max_open_streams;
incoming_initial_max_open_streams_ = max_open_streams;
}
void QuicStreamIdManager::MaybeSendMaxStreamsFrame() {
int divisor = GetQuicFlag(quic_max_streams_window_divisor);
if (divisor > 0) {
if ((incoming_advertised_max_streams_ - incoming_stream_count_) >
(incoming_initial_max_open_streams_ / divisor)) {
return;
}
}
if (delegate_->CanSendMaxStreams() &&
incoming_advertised_max_streams_ < incoming_actual_max_streams_) {
SendMaxStreamsFrame();
}
}
void QuicStreamIdManager::SendMaxStreamsFrame() {
QUIC_BUG_IF(quic_bug_12413_2,
incoming_advertised_max_streams_ >= incoming_actual_max_streams_);
incoming_advertised_max_streams_ = incoming_actual_max_streams_;
delegate_->SendMaxStreams(incoming_advertised_max_streams_, unidirectional_);
}
void QuicStreamIdManager::OnStreamClosed(QuicStreamId stream_id) {
QUICHE_DCHECK_NE(QuicUtils::IsBidirectionalStreamId(stream_id, version_),
unidirectional_);
if (QuicUtils::IsOutgoingStreamId(version_, stream_id, perspective_)) {
return;
}
if (incoming_actual_max_streams_ == QuicUtils::GetMaxStreamCount()) {
return;
}
if (!stop_increasing_incoming_max_streams_) {
incoming_actual_max_streams_++;
MaybeSendMaxStreamsFrame();
}
}
QuicStreamId QuicStreamIdManager::GetNextOutgoingStreamId() {
QUIC_BUG_IF(quic_bug_12413_3, outgoing_stream_count_ >= outgoing_max_streams_)
<< "Attempt to allocate a new outgoing stream that would exceed the "
"limit ("
<< outgoing_max_streams_ << ")";
QuicStreamId id = next_outgoing_stream_id_;
next_outgoing_stream_id_ +=
QuicUtils::StreamIdDelta(version_.transport_version);
outgoing_stream_count_++;
return id;
}
bool QuicStreamIdManager::CanOpenNextOutgoingStream() const {
QUICHE_DCHECK(VersionHasIetfQuicFrames(version_.transport_version));
return outgoing_stream_count_ < outgoing_max_streams_;
}
bool QuicStreamIdManager::MaybeIncreaseLargestPeerStreamId(
const QuicStreamId stream_id, std::string* error_details) {
QUICHE_DCHECK_NE(QuicUtils::IsBidirectionalStreamId(stream_id, version_),
unidirectional_);
QUICHE_DCHECK_NE(QuicUtils::IsServerInitiatedStreamId(
version_.transport_version, stream_id),
perspective_ == Perspective::IS_SERVER);
if (available_streams_.erase(stream_id) == 1) {
return true;
}
if (largest_peer_created_stream_id_ !=
QuicUtils::GetInvalidStreamId(version_.transport_version)) {
QUICHE_DCHECK_GT(stream_id, largest_peer_created_stream_id_);
}
const QuicStreamCount delta =
QuicUtils::StreamIdDelta(version_.transport_version);
const QuicStreamId least_new_stream_id =
largest_peer_created_stream_id_ ==
QuicUtils::GetInvalidStreamId(version_.transport_version)
? GetFirstIncomingStreamId()
: largest_peer_created_stream_id_ + delta;
const QuicStreamCount stream_count_increment =
(stream_id - least_new_stream_id) / delta + 1;
if (incoming_stream_count_ + stream_count_increment >
incoming_advertised_max_streams_) {
QUIC_DLOG(INFO) << ENDPOINT
<< "Failed to create a new incoming stream with id:"
<< stream_id << ", reaching MAX_STREAMS limit: "
<< incoming_advertised_max_streams_ << ".";
*error_details = absl::StrCat("Stream id ", stream_id,
" would exceed stream count limit ",
incoming_advertised_max_streams_);
return false;
}
for (QuicStreamId id = least_new_stream_id; id < stream_id; id += delta) {
available_streams_.insert(id);
}
incoming_stream_count_ += stream_count_increment;
largest_peer_created_stream_id_ = stream_id;
return true;
}
bool QuicStreamIdManager::IsAvailableStream(QuicStreamId id) const {
QUICHE_DCHECK_NE(QuicUtils::IsBidirectionalStreamId(id, version_),
unidirectional_);
if (QuicUtils::IsOutgoingStreamId(version_, id, perspective_)) {
return id >= next_outgoing_stream_id_;
}
return largest_peer_created_stream_id_ ==
QuicUtils::GetInvalidStreamId(version_.transport_version) ||
id > largest_peer_created_stream_id_ ||
available_streams_.contains(id);
}
QuicStreamId QuicStreamIdManager::GetFirstOutgoingStreamId() const {
return (unidirectional_) ? QuicUtils::GetFirstUnidirectionalStreamId(
version_.transport_version, perspective_)
: QuicUtils::GetFirstBidirectionalStreamId(
version_.transport_version, perspective_);
}
QuicStreamId QuicStreamIdManager::GetFirstIncomingStreamId() const {
return (unidirectional_) ? QuicUtils::GetFirstUnidirectionalStreamId(
version_.transport_version,
QuicUtils::InvertPerspective(perspective_))
: QuicUtils::GetFirstBidirectionalStreamId(
version_.transport_version,
QuicUtils::InvertPerspective(perspective_));
}
QuicStreamCount QuicStreamIdManager::available_incoming_streams() const {
return incoming_advertised_max_streams_ - incoming_stream_count_;
}
} | #include "quiche/quic/core/quic_stream_id_manager.h"
#include <cstdint>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/str_cat.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_expect_bug.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_stream_id_manager_peer.h"
using testing::_;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
class MockDelegate : public QuicStreamIdManager::DelegateInterface {
public:
MOCK_METHOD(void, SendMaxStreams,
(QuicStreamCount stream_count, bool unidirectional), (override));
MOCK_METHOD(bool, CanSendMaxStreams, (), (override));
};
struct TestParams {
TestParams(ParsedQuicVersion version, Perspective perspective,
bool is_unidirectional)
: version(version),
perspective(perspective),
is_unidirectional(is_unidirectional) {}
ParsedQuicVersion version;
Perspective perspective;
bool is_unidirectional;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
ParsedQuicVersionToString(p.version), "_",
(p.perspective == Perspective::IS_CLIENT ? "Client" : "Server"),
(p.is_unidirectional ? "Unidirectional" : "Bidirectional"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
if (!version.HasIetfQuicFrames()) {
continue;
}
for (Perspective perspective :
{Perspective::IS_CLIENT, Perspective::IS_SERVER}) {
for (bool is_unidirectional : {true, false}) {
params.push_back(TestParams(version, perspective, is_unidirectional));
}
}
}
return params;
}
class QuicStreamIdManagerTest : public QuicTestWithParam<TestParams> {
protected:
QuicStreamIdManagerTest()
: stream_id_manager_(&delegate_, IsUnidirectional(), perspective(),
GetParam().version, 0,
kDefaultMaxStreamsPerConnection) {
QUICHE_DCHECK(VersionHasIetfQuicFrames(transport_version()));
}
QuicTransportVersion transport_version() const {
return GetParam().version.transport_version;
}
QuicStreamId GetNthIncomingStreamId(int n) {
return QuicUtils::StreamIdDelta(transport_version()) * n +
(IsUnidirectional()
? QuicUtils::GetFirstUnidirectionalStreamId(
transport_version(),
QuicUtils::InvertPerspective(perspective()))
: QuicUtils::GetFirstBidirectionalStreamId(
transport_version(),
QuicUtils::InvertPerspective(perspective())));
}
bool IsUnidirectional() { return GetParam().is_unidirectional; }
Perspective perspective() { return GetParam().perspective; }
StrictMock<MockDelegate> delegate_;
QuicStreamIdManager stream_id_manager_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicStreamIdManagerTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QuicStreamIdManagerTest, Initialization) {
EXPECT_EQ(0u, stream_id_manager_.outgoing_max_streams());
EXPECT_EQ(kDefaultMaxStreamsPerConnection,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(kDefaultMaxStreamsPerConnection,
stream_id_manager_.incoming_advertised_max_streams());
EXPECT_EQ(kDefaultMaxStreamsPerConnection,
stream_id_manager_.incoming_initial_max_open_streams());
}
TEST_P(QuicStreamIdManagerTest, CheckMaxStreamsWindowForSingleStream) {
stream_id_manager_.SetMaxOpenIncomingStreams(1);
EXPECT_EQ(1u, stream_id_manager_.incoming_initial_max_open_streams());
EXPECT_EQ(1u, stream_id_manager_.incoming_actual_max_streams());
}
TEST_P(QuicStreamIdManagerTest, CheckMaxStreamsBadValuesOverMaxFailsOutgoing) {
QuicStreamCount implementation_max = QuicUtils::GetMaxStreamCount();
EXPECT_LT(stream_id_manager_.outgoing_max_streams(), implementation_max);
EXPECT_TRUE(
stream_id_manager_.MaybeAllowNewOutgoingStreams(implementation_max + 1));
EXPECT_EQ(implementation_max, stream_id_manager_.outgoing_max_streams());
}
TEST_P(QuicStreamIdManagerTest, ProcessStreamsBlockedOk) {
QuicStreamCount stream_count =
stream_id_manager_.incoming_initial_max_open_streams();
QuicStreamsBlockedFrame frame(0, stream_count - 1, IsUnidirectional());
EXPECT_CALL(delegate_, SendMaxStreams(stream_count, IsUnidirectional()))
.Times(0);
std::string error_details;
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
}
TEST_P(QuicStreamIdManagerTest, ProcessStreamsBlockedNoOp) {
QuicStreamCount stream_count =
stream_id_manager_.incoming_initial_max_open_streams();
QuicStreamsBlockedFrame frame(0, stream_count, IsUnidirectional());
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
}
TEST_P(QuicStreamIdManagerTest, ProcessStreamsBlockedTooBig) {
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
QuicStreamCount stream_count =
stream_id_manager_.incoming_initial_max_open_streams() + 1;
QuicStreamsBlockedFrame frame(0, stream_count, IsUnidirectional());
std::string error_details;
EXPECT_FALSE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
EXPECT_EQ(
error_details,
"StreamsBlockedFrame's stream count 101 exceeds incoming max stream 100");
}
TEST_P(QuicStreamIdManagerTest, IsIncomingStreamIdValidBelowLimit) {
QuicStreamId stream_id = GetNthIncomingStreamId(
stream_id_manager_.incoming_actual_max_streams() - 2);
EXPECT_TRUE(
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id, nullptr));
}
TEST_P(QuicStreamIdManagerTest, IsIncomingStreamIdValidAtLimit) {
QuicStreamId stream_id = GetNthIncomingStreamId(
stream_id_manager_.incoming_actual_max_streams() - 1);
EXPECT_TRUE(
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id, nullptr));
}
TEST_P(QuicStreamIdManagerTest, IsIncomingStreamIdInValidAboveLimit) {
QuicStreamId stream_id =
GetNthIncomingStreamId(stream_id_manager_.incoming_actual_max_streams());
std::string error_details;
EXPECT_FALSE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
stream_id, &error_details));
EXPECT_EQ(error_details,
absl::StrCat("Stream id ", stream_id,
" would exceed stream count limit 100"));
}
TEST_P(QuicStreamIdManagerTest, OnStreamsBlockedFrame) {
QuicStreamCount advertised_stream_count =
stream_id_manager_.incoming_advertised_max_streams();
QuicStreamsBlockedFrame frame;
frame.unidirectional = IsUnidirectional();
frame.stream_count = advertised_stream_count;
std::string error_details;
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
frame.stream_count = advertised_stream_count + 1;
EXPECT_FALSE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
EXPECT_EQ(
error_details,
"StreamsBlockedFrame's stream count 101 exceeds incoming max stream 100");
QuicStreamCount actual_stream_count =
stream_id_manager_.incoming_actual_max_streams();
stream_id_manager_.OnStreamClosed(
QuicStreamIdManagerPeer::GetFirstIncomingStreamId(&stream_id_manager_));
EXPECT_EQ(actual_stream_count + 1u,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(stream_id_manager_.incoming_actual_max_streams(),
stream_id_manager_.incoming_advertised_max_streams() + 1u);
frame.stream_count = advertised_stream_count;
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(true));
EXPECT_CALL(delegate_,
SendMaxStreams(stream_id_manager_.incoming_actual_max_streams(),
IsUnidirectional()));
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
EXPECT_EQ(stream_id_manager_.incoming_actual_max_streams(),
stream_id_manager_.incoming_advertised_max_streams());
}
TEST_P(QuicStreamIdManagerTest, OnStreamsBlockedFrameCantSend) {
QuicStreamCount advertised_stream_count =
stream_id_manager_.incoming_advertised_max_streams();
QuicStreamsBlockedFrame frame;
frame.unidirectional = IsUnidirectional();
QuicStreamCount actual_stream_count =
stream_id_manager_.incoming_actual_max_streams();
stream_id_manager_.OnStreamClosed(
QuicStreamIdManagerPeer::GetFirstIncomingStreamId(&stream_id_manager_));
EXPECT_EQ(actual_stream_count + 1u,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(stream_id_manager_.incoming_actual_max_streams(),
stream_id_manager_.incoming_advertised_max_streams() + 1u);
frame.stream_count = advertised_stream_count;
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(false));
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
const QuicStreamCount advertised_max_streams =
stream_id_manager_.incoming_advertised_max_streams();
std::string error_details;
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
EXPECT_EQ(advertised_max_streams,
stream_id_manager_.incoming_advertised_max_streams());
}
TEST_P(QuicStreamIdManagerTest, GetNextOutgoingStream) {
size_t number_of_streams = kDefaultMaxStreamsPerConnection;
EXPECT_TRUE(
stream_id_manager_.MaybeAllowNewOutgoingStreams(number_of_streams));
QuicStreamId stream_id = IsUnidirectional()
? QuicUtils::GetFirstUnidirectionalStreamId(
transport_version(), perspective())
: QuicUtils::GetFirstBidirectionalStreamId(
transport_version(), perspective());
EXPECT_EQ(number_of_streams, stream_id_manager_.outgoing_max_streams());
while (number_of_streams) {
EXPECT_TRUE(stream_id_manager_.CanOpenNextOutgoingStream());
EXPECT_EQ(stream_id, stream_id_manager_.GetNextOutgoingStreamId());
stream_id += QuicUtils::StreamIdDelta(transport_version());
number_of_streams--;
}
EXPECT_FALSE(stream_id_manager_.CanOpenNextOutgoingStream());
EXPECT_QUIC_BUG(
stream_id_manager_.GetNextOutgoingStreamId(),
"Attempt to allocate a new outgoing stream that would exceed the limit");
}
TEST_P(QuicStreamIdManagerTest, MaybeIncreaseLargestPeerStreamId) {
QuicStreamId max_stream_id = GetNthIncomingStreamId(
stream_id_manager_.incoming_actual_max_streams() - 1);
EXPECT_TRUE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(max_stream_id,
nullptr));
QuicStreamId first_stream_id = GetNthIncomingStreamId(0);
EXPECT_TRUE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
first_stream_id, nullptr));
std::string error_details;
EXPECT_FALSE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
max_stream_id + QuicUtils::StreamIdDelta(transport_version()),
&error_details));
EXPECT_EQ(error_details,
absl::StrCat(
"Stream id ",
max_stream_id + QuicUtils::StreamIdDelta(transport_version()),
" would exceed stream count limit 100"));
}
TEST_P(QuicStreamIdManagerTest, MaxStreamsWindow) {
int stream_count = stream_id_manager_.incoming_initial_max_open_streams() /
GetQuicFlag(quic_max_streams_window_divisor) -
1;
EXPECT_CALL(delegate_, CanSendMaxStreams()).Times(0);
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
QuicStreamId stream_id = GetNthIncomingStreamId(0);
size_t old_available_incoming_streams =
stream_id_manager_.available_incoming_streams();
auto i = stream_count;
while (i) {
EXPECT_TRUE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id,
nullptr));
old_available_incoming_streams--;
EXPECT_EQ(old_available_incoming_streams,
stream_id_manager_.available_incoming_streams());
i--;
stream_id += QuicUtils::StreamIdDelta(transport_version());
}
stream_id = GetNthIncomingStreamId(0);
QuicStreamCount expected_actual_max =
stream_id_manager_.incoming_actual_max_streams();
QuicStreamCount expected_advertised_max_streams =
stream_id_manager_.incoming_advertised_max_streams();
while (stream_count) {
stream_id_manager_.OnStreamClosed(stream_id);
stream_count--;
stream_id += QuicUtils::StreamIdDelta(transport_version());
expected_actual_max++;
EXPECT_EQ(expected_actual_max,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(expected_advertised_max_streams,
stream_id_manager_.incoming_advertised_max_streams());
}
EXPECT_EQ(old_available_incoming_streams,
stream_id_manager_.available_incoming_streams());
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(true));
EXPECT_CALL(delegate_, SendMaxStreams(_, IsUnidirectional()));
EXPECT_TRUE(
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id, nullptr));
stream_id_manager_.OnStreamClosed(stream_id);
}
TEST_P(QuicStreamIdManagerTest, MaxStreamsWindowCantSend) {
int stream_count = stream_id_manager_.incoming_initial_max_open_streams() /
GetQuicFlag(quic_max_streams_window_divisor) -
1;
EXPECT_CALL(delegate_, CanSendMaxStreams()).Times(0);
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
QuicStreamId stream_id = GetNthIncomingStreamId(0);
size_t old_available_incoming_streams =
stream_id_manager_.available_incoming_streams();
auto i = stream_count;
while (i) {
EXPECT_TRUE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id,
nullptr));
old_available_incoming_streams--;
EXPECT_EQ(old_available_incoming_streams,
stream_id_manager_.available_incoming_streams());
i--;
stream_id += QuicUtils::StreamIdDelta(transport_version());
}
stream_id = GetNthIncomingStreamId(0);
QuicStreamCount expected_actual_max =
stream_id_manager_.incoming_actual_max_streams();
QuicStreamCount expected_advertised_max_streams =
stream_id_manager_.incoming_advertised_max_streams();
while (stream_count) {
stream_id_manager_.OnStreamClosed(stream_id);
stream_count--;
stream_id += QuicUtils::StreamIdDelta(transport_version());
expected_actual_max++;
EXPECT_EQ(expected_actual_max,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(expected_advertised_max_streams,
stream_id_manager_.incoming_advertised_max_streams());
}
EXPECT_EQ(old_available_incoming_streams,
stream_id_manager_.available_incoming_streams());
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(false));
EXPECT_CALL(delegate_, SendMaxStreams(_, IsUnidirectional())).Times(0);
EXPECT_TRUE(
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id, nullptr));
stream_id_manager_.OnStreamClosed(stream_id);
EXPECT_EQ(expected_advertised_max_streams,
stream_id_manager_.incoming_advertised_max_streams());
}
TEST_P(QuicStreamIdManagerTest, MaxStreamsWindowStopsIncreasing) {
QuicStreamId stream_count =
stream_id_manager_.incoming_initial_max_open_streams();
QuicStreamId stream_id = GetNthIncomingStreamId(0);
for (QuicStreamCount i = 0; i < stream_count; ++i) {
EXPECT_TRUE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(stream_id,
nullptr));
stream_id += QuicUtils::StreamIdDelta(transport_version());
}
stream_id_manager_.StopIncreasingIncomingMaxStreams();
EXPECT_CALL(delegate_, CanSendMaxStreams()).Times(0);
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
stream_id = GetNthIncomingStreamId(0);
QuicStreamCount expected_actual_max =
stream_id_manager_.incoming_actual_max_streams();
QuicStreamCount expected_advertised_max_streams =
stream_id_manager_.incoming_advertised_max_streams();
for (QuicStreamCount i = 0; i < stream_count; ++i) {
stream_id_manager_.OnStreamClosed(stream_id);
stream_id += QuicUtils::StreamIdDelta(transport_version());
EXPECT_EQ(expected_actual_max,
stream_id_manager_.incoming_actual_max_streams());
EXPECT_EQ(expected_advertised_max_streams,
stream_id_manager_.incoming_advertised_max_streams());
}
}
TEST_P(QuicStreamIdManagerTest, StreamsBlockedEdgeConditions) {
QuicStreamsBlockedFrame frame;
frame.unidirectional = IsUnidirectional();
EXPECT_CALL(delegate_, CanSendMaxStreams()).Times(0);
EXPECT_CALL(delegate_, SendMaxStreams(_, _)).Times(0);
stream_id_manager_.SetMaxOpenIncomingStreams(0);
frame.stream_count = 0;
std::string error_details;
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(true));
EXPECT_CALL(delegate_, SendMaxStreams(123u, IsUnidirectional()));
QuicStreamIdManagerPeer::set_incoming_actual_max_streams(&stream_id_manager_,
123);
frame.stream_count = 0;
EXPECT_TRUE(stream_id_manager_.OnStreamsBlockedFrame(frame, &error_details));
}
TEST_P(QuicStreamIdManagerTest, MaxStreamsSlidingWindow) {
QuicStreamCount first_advert =
stream_id_manager_.incoming_advertised_max_streams();
int i =
static_cast<int>(stream_id_manager_.incoming_initial_max_open_streams() /
GetQuicFlag(quic_max_streams_window_divisor));
QuicStreamId id =
QuicStreamIdManagerPeer::GetFirstIncomingStreamId(&stream_id_manager_);
EXPECT_CALL(delegate_, CanSendMaxStreams()).WillOnce(testing::Return(true));
EXPECT_CALL(delegate_, SendMaxStreams(first_advert + i, IsUnidirectional()));
while (i) {
EXPECT_TRUE(
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(id, nullptr));
stream_id_manager_.OnStreamClosed(id);
i--;
id += QuicUtils::StreamIdDelta(transport_version());
}
}
TEST_P(QuicStreamIdManagerTest, NewStreamDoesNotExceedLimit) {
EXPECT_TRUE(stream_id_manager_.MaybeAllowNewOutgoingStreams(100));
size_t stream_count = stream_id_manager_.outgoing_max_streams();
EXPECT_NE(0u, stream_count);
while (stream_count) {
EXPECT_TRUE(stream_id_manager_.CanOpenNextOutgoingStream());
stream_id_manager_.GetNextOutgoingStreamId();
stream_count--;
}
EXPECT_EQ(stream_id_manager_.outgoing_stream_count(),
stream_id_manager_.outgoing_max_streams());
EXPECT_FALSE(stream_id_manager_.CanOpenNextOutgoingStream());
}
TEST_P(QuicStreamIdManagerTest, AvailableStreams) {
stream_id_manager_.MaybeIncreaseLargestPeerStreamId(GetNthIncomingStreamId(3),
nullptr);
EXPECT_TRUE(stream_id_manager_.IsAvailableStream(GetNthIncomingStreamId(1)));
EXPECT_TRUE(stream_id_manager_.IsAvailableStream(GetNthIncomingStreamId(2)));
EXPECT_FALSE(stream_id_manager_.IsAvailableStream(GetNthIncomingStreamId(3)));
EXPECT_TRUE(stream_id_manager_.IsAvailableStream(GetNthIncomingStreamId(4)));
}
TEST_P(QuicStreamIdManagerTest, ExtremeMaybeIncreaseLargestPeerStreamId) {
QuicStreamId too_big_stream_id = GetNthIncomingStreamId(
stream_id_manager_.incoming_actual_max_streams() + 20);
std::string error_details;
EXPECT_FALSE(stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
too_big_stream_id, &error_details));
EXPECT_EQ(error_details,
absl::StrCat("Stream id ", too_big_stream_id,
" would exceed stream count limit 100"));
}
}
}
} |
287 | cpp | google/quiche | uber_quic_stream_id_manager | quiche/quic/core/uber_quic_stream_id_manager.cc | quiche/quic/core/uber_quic_stream_id_manager_test.cc | #ifndef QUICHE_QUIC_CORE_UBER_QUIC_STREAM_ID_MANAGER_H_
#define QUICHE_QUIC_CORE_UBER_QUIC_STREAM_ID_MANAGER_H_
#include "quiche/quic/core/quic_stream_id_manager.h"
#include "quiche/quic/core/quic_types.h"
namespace quic {
namespace test {
class QuicSessionPeer;
class UberQuicStreamIdManagerPeer;
}
class QuicSession;
class QUICHE_EXPORT UberQuicStreamIdManager {
public:
UberQuicStreamIdManager(
Perspective perspective, ParsedQuicVersion version,
QuicStreamIdManager::DelegateInterface* delegate,
QuicStreamCount max_open_outgoing_bidirectional_streams,
QuicStreamCount max_open_outgoing_unidirectional_streams,
QuicStreamCount max_open_incoming_bidirectional_streams,
QuicStreamCount max_open_incoming_unidirectional_streams);
bool MaybeAllowNewOutgoingBidirectionalStreams(
QuicStreamCount max_open_streams);
bool MaybeAllowNewOutgoingUnidirectionalStreams(
QuicStreamCount max_open_streams);
void SetMaxOpenIncomingBidirectionalStreams(QuicStreamCount max_open_streams);
void SetMaxOpenIncomingUnidirectionalStreams(
QuicStreamCount max_open_streams);
bool CanOpenNextOutgoingBidirectionalStream() const;
bool CanOpenNextOutgoingUnidirectionalStream() const;
QuicStreamId GetNextOutgoingBidirectionalStreamId();
QuicStreamId GetNextOutgoingUnidirectionalStreamId();
bool MaybeIncreaseLargestPeerStreamId(QuicStreamId id,
std::string* error_details);
void OnStreamClosed(QuicStreamId id);
bool OnStreamsBlockedFrame(const QuicStreamsBlockedFrame& frame,
std::string* error_details);
bool IsAvailableStream(QuicStreamId id) const;
void StopIncreasingIncomingMaxStreams();
void MaybeSendMaxStreamsFrame();
QuicStreamCount GetMaxAllowdIncomingBidirectionalStreams() const;
QuicStreamCount GetMaxAllowdIncomingUnidirectionalStreams() const;
QuicStreamId GetLargestPeerCreatedStreamId(bool unidirectional) const;
QuicStreamId next_outgoing_bidirectional_stream_id() const;
QuicStreamId next_outgoing_unidirectional_stream_id() const;
QuicStreamCount max_outgoing_bidirectional_streams() const;
QuicStreamCount max_outgoing_unidirectional_streams() const;
QuicStreamCount max_incoming_bidirectional_streams() const;
QuicStreamCount max_incoming_unidirectional_streams() const;
QuicStreamCount advertised_max_incoming_bidirectional_streams() const;
QuicStreamCount advertised_max_incoming_unidirectional_streams() const;
QuicStreamCount outgoing_bidirectional_stream_count() const;
QuicStreamCount outgoing_unidirectional_stream_count() const;
private:
friend class test::QuicSessionPeer;
friend class test::UberQuicStreamIdManagerPeer;
ParsedQuicVersion version_;
QuicStreamIdManager bidirectional_stream_id_manager_;
QuicStreamIdManager unidirectional_stream_id_manager_;
};
}
#endif
#include "quiche/quic/core/uber_quic_stream_id_manager.h"
#include <string>
#include "quiche/quic/core/quic_session.h"
#include "quiche/quic/core/quic_utils.h"
namespace quic {
UberQuicStreamIdManager::UberQuicStreamIdManager(
Perspective perspective, ParsedQuicVersion version,
QuicStreamIdManager::DelegateInterface* delegate,
QuicStreamCount max_open_outgoing_bidirectional_streams,
QuicStreamCount max_open_outgoing_unidirectional_streams,
QuicStreamCount max_open_incoming_bidirectional_streams,
QuicStreamCount max_open_incoming_unidirectional_streams)
: version_(version),
bidirectional_stream_id_manager_(delegate,
false, perspective,
version,
max_open_outgoing_bidirectional_streams,
max_open_incoming_bidirectional_streams),
unidirectional_stream_id_manager_(
delegate,
true, perspective, version,
max_open_outgoing_unidirectional_streams,
max_open_incoming_unidirectional_streams) {}
bool UberQuicStreamIdManager::MaybeAllowNewOutgoingBidirectionalStreams(
QuicStreamCount max_open_streams) {
return bidirectional_stream_id_manager_.MaybeAllowNewOutgoingStreams(
max_open_streams);
}
bool UberQuicStreamIdManager::MaybeAllowNewOutgoingUnidirectionalStreams(
QuicStreamCount max_open_streams) {
return unidirectional_stream_id_manager_.MaybeAllowNewOutgoingStreams(
max_open_streams);
}
void UberQuicStreamIdManager::SetMaxOpenIncomingBidirectionalStreams(
QuicStreamCount max_open_streams) {
bidirectional_stream_id_manager_.SetMaxOpenIncomingStreams(max_open_streams);
}
void UberQuicStreamIdManager::SetMaxOpenIncomingUnidirectionalStreams(
QuicStreamCount max_open_streams) {
unidirectional_stream_id_manager_.SetMaxOpenIncomingStreams(max_open_streams);
}
bool UberQuicStreamIdManager::CanOpenNextOutgoingBidirectionalStream() const {
return bidirectional_stream_id_manager_.CanOpenNextOutgoingStream();
}
bool UberQuicStreamIdManager::CanOpenNextOutgoingUnidirectionalStream() const {
return unidirectional_stream_id_manager_.CanOpenNextOutgoingStream();
}
QuicStreamId UberQuicStreamIdManager::GetNextOutgoingBidirectionalStreamId() {
return bidirectional_stream_id_manager_.GetNextOutgoingStreamId();
}
QuicStreamId UberQuicStreamIdManager::GetNextOutgoingUnidirectionalStreamId() {
return unidirectional_stream_id_manager_.GetNextOutgoingStreamId();
}
bool UberQuicStreamIdManager::MaybeIncreaseLargestPeerStreamId(
QuicStreamId id, std::string* error_details) {
if (QuicUtils::IsBidirectionalStreamId(id, version_)) {
return bidirectional_stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
id, error_details);
}
return unidirectional_stream_id_manager_.MaybeIncreaseLargestPeerStreamId(
id, error_details);
}
void UberQuicStreamIdManager::OnStreamClosed(QuicStreamId id) {
if (QuicUtils::IsBidirectionalStreamId(id, version_)) {
bidirectional_stream_id_manager_.OnStreamClosed(id);
return;
}
unidirectional_stream_id_manager_.OnStreamClosed(id);
}
bool UberQuicStreamIdManager::OnStreamsBlockedFrame(
const QuicStreamsBlockedFrame& frame, std::string* error_details) {
if (frame.unidirectional) {
return unidirectional_stream_id_manager_.OnStreamsBlockedFrame(
frame, error_details);
}
return bidirectional_stream_id_manager_.OnStreamsBlockedFrame(frame,
error_details);
}
bool UberQuicStreamIdManager::IsAvailableStream(QuicStreamId id) const {
if (QuicUtils::IsBidirectionalStreamId(id, version_)) {
return bidirectional_stream_id_manager_.IsAvailableStream(id);
}
return unidirectional_stream_id_manager_.IsAvailableStream(id);
}
void UberQuicStreamIdManager::StopIncreasingIncomingMaxStreams() {
unidirectional_stream_id_manager_.StopIncreasingIncomingMaxStreams();
bidirectional_stream_id_manager_.StopIncreasingIncomingMaxStreams();
}
void UberQuicStreamIdManager::MaybeSendMaxStreamsFrame() {
unidirectional_stream_id_manager_.MaybeSendMaxStreamsFrame();
bidirectional_stream_id_manager_.MaybeSendMaxStreamsFrame();
}
QuicStreamCount
UberQuicStreamIdManager::GetMaxAllowdIncomingBidirectionalStreams() const {
return bidirectional_stream_id_manager_.incoming_initial_max_open_streams();
}
QuicStreamCount
UberQuicStreamIdManager::GetMaxAllowdIncomingUnidirectionalStreams() const {
return unidirectional_stream_id_manager_.incoming_initial_max_open_streams();
}
QuicStreamId UberQuicStreamIdManager::GetLargestPeerCreatedStreamId(
bool unidirectional) const {
if (unidirectional) {
return unidirectional_stream_id_manager_.largest_peer_created_stream_id();
}
return bidirectional_stream_id_manager_.largest_peer_created_stream_id();
}
QuicStreamId UberQuicStreamIdManager::next_outgoing_bidirectional_stream_id()
const {
return bidirectional_stream_id_manager_.next_outgoing_stream_id();
}
QuicStreamId UberQuicStreamIdManager::next_outgoing_unidirectional_stream_id()
const {
return unidirectional_stream_id_manager_.next_outgoing_stream_id();
}
QuicStreamCount UberQuicStreamIdManager::max_outgoing_bidirectional_streams()
const {
return bidirectional_stream_id_manager_.outgoing_max_streams();
}
QuicStreamCount UberQuicStreamIdManager::max_outgoing_unidirectional_streams()
const {
return unidirectional_stream_id_manager_.outgoing_max_streams();
}
QuicStreamCount UberQuicStreamIdManager::max_incoming_bidirectional_streams()
const {
return bidirectional_stream_id_manager_.incoming_actual_max_streams();
}
QuicStreamCount UberQuicStreamIdManager::max_incoming_unidirectional_streams()
const {
return unidirectional_stream_id_manager_.incoming_actual_max_streams();
}
QuicStreamCount
UberQuicStreamIdManager::advertised_max_incoming_bidirectional_streams() const {
return bidirectional_stream_id_manager_.incoming_advertised_max_streams();
}
QuicStreamCount
UberQuicStreamIdManager::advertised_max_incoming_unidirectional_streams()
const {
return unidirectional_stream_id_manager_.incoming_advertised_max_streams();
}
QuicStreamCount UberQuicStreamIdManager::outgoing_bidirectional_stream_count()
const {
return bidirectional_stream_id_manager_.outgoing_stream_count();
}
QuicStreamCount UberQuicStreamIdManager::outgoing_unidirectional_stream_count()
const {
return unidirectional_stream_id_manager_.outgoing_stream_count();
}
} | #include "quiche/quic/core/uber_quic_stream_id_manager.h"
#include <string>
#include <vector>
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_stream_id_manager_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
using testing::_;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
struct TestParams {
explicit TestParams(ParsedQuicVersion version, Perspective perspective)
: version(version), perspective(perspective) {}
ParsedQuicVersion version;
Perspective perspective;
};
std::string PrintToString(const TestParams& p) {
return absl::StrCat(
ParsedQuicVersionToString(p.version), "_",
(p.perspective == Perspective::IS_CLIENT ? "client" : "server"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
for (const ParsedQuicVersion& version : AllSupportedVersions()) {
if (!version.HasIetfQuicFrames()) {
continue;
}
params.push_back(TestParams(version, Perspective::IS_CLIENT));
params.push_back(TestParams(version, Perspective::IS_SERVER));
}
return params;
}
class MockDelegate : public QuicStreamIdManager::DelegateInterface {
public:
MOCK_METHOD(bool, CanSendMaxStreams, (), (override));
MOCK_METHOD(void, SendMaxStreams,
(QuicStreamCount stream_count, bool unidirectional), (override));
};
class UberQuicStreamIdManagerTest : public QuicTestWithParam<TestParams> {
protected:
UberQuicStreamIdManagerTest()
: manager_(perspective(), version(), &delegate_, 0, 0,
kDefaultMaxStreamsPerConnection,
kDefaultMaxStreamsPerConnection) {}
QuicStreamId GetNthClientInitiatedBidirectionalId(int n) {
return QuicUtils::GetFirstBidirectionalStreamId(transport_version(),
Perspective::IS_CLIENT) +
QuicUtils::StreamIdDelta(transport_version()) * n;
}
QuicStreamId GetNthClientInitiatedUnidirectionalId(int n) {
return QuicUtils::GetFirstUnidirectionalStreamId(transport_version(),
Perspective::IS_CLIENT) +
QuicUtils::StreamIdDelta(transport_version()) * n;
}
QuicStreamId GetNthServerInitiatedBidirectionalId(int n) {
return QuicUtils::GetFirstBidirectionalStreamId(transport_version(),
Perspective::IS_SERVER) +
QuicUtils::StreamIdDelta(transport_version()) * n;
}
QuicStreamId GetNthServerInitiatedUnidirectionalId(int n) {
return QuicUtils::GetFirstUnidirectionalStreamId(transport_version(),
Perspective::IS_SERVER) +
QuicUtils::StreamIdDelta(transport_version()) * n;
}
QuicStreamId GetNthPeerInitiatedBidirectionalStreamId(int n) {
return ((perspective() == Perspective::IS_SERVER)
? GetNthClientInitiatedBidirectionalId(n)
: GetNthServerInitiatedBidirectionalId(n));
}
QuicStreamId GetNthPeerInitiatedUnidirectionalStreamId(int n) {
return ((perspective() == Perspective::IS_SERVER)
? GetNthClientInitiatedUnidirectionalId(n)
: GetNthServerInitiatedUnidirectionalId(n));
}
QuicStreamId GetNthSelfInitiatedBidirectionalStreamId(int n) {
return ((perspective() == Perspective::IS_CLIENT)
? GetNthClientInitiatedBidirectionalId(n)
: GetNthServerInitiatedBidirectionalId(n));
}
QuicStreamId GetNthSelfInitiatedUnidirectionalStreamId(int n) {
return ((perspective() == Perspective::IS_CLIENT)
? GetNthClientInitiatedUnidirectionalId(n)
: GetNthServerInitiatedUnidirectionalId(n));
}
QuicStreamId StreamCountToId(QuicStreamCount stream_count,
Perspective perspective, bool bidirectional) {
return ((bidirectional) ? QuicUtils::GetFirstBidirectionalStreamId(
transport_version(), perspective)
: QuicUtils::GetFirstUnidirectionalStreamId(
transport_version(), perspective)) +
((stream_count - 1) * QuicUtils::StreamIdDelta(transport_version()));
}
ParsedQuicVersion version() { return GetParam().version; }
QuicTransportVersion transport_version() {
return version().transport_version;
}
Perspective perspective() { return GetParam().perspective; }
testing::StrictMock<MockDelegate> delegate_;
UberQuicStreamIdManager manager_;
};
INSTANTIATE_TEST_SUITE_P(Tests, UberQuicStreamIdManagerTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(UberQuicStreamIdManagerTest, Initialization) {
EXPECT_EQ(GetNthSelfInitiatedBidirectionalStreamId(0),
manager_.next_outgoing_bidirectional_stream_id());
EXPECT_EQ(GetNthSelfInitiatedUnidirectionalStreamId(0),
manager_.next_outgoing_unidirectional_stream_id());
}
TEST_P(UberQuicStreamIdManagerTest, SetMaxOpenOutgoingStreams) {
const size_t kNumMaxOutgoingStream = 123;
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingBidirectionalStreams(
kNumMaxOutgoingStream));
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingUnidirectionalStreams(
kNumMaxOutgoingStream + 1));
EXPECT_EQ(kNumMaxOutgoingStream,
manager_.max_outgoing_bidirectional_streams());
EXPECT_EQ(kNumMaxOutgoingStream + 1,
manager_.max_outgoing_unidirectional_streams());
int i = kNumMaxOutgoingStream;
while (i) {
EXPECT_TRUE(manager_.CanOpenNextOutgoingBidirectionalStream());
manager_.GetNextOutgoingBidirectionalStreamId();
EXPECT_TRUE(manager_.CanOpenNextOutgoingUnidirectionalStream());
manager_.GetNextOutgoingUnidirectionalStreamId();
i--;
}
EXPECT_TRUE(manager_.CanOpenNextOutgoingUnidirectionalStream());
manager_.GetNextOutgoingUnidirectionalStreamId();
EXPECT_FALSE(manager_.CanOpenNextOutgoingUnidirectionalStream());
EXPECT_FALSE(manager_.CanOpenNextOutgoingBidirectionalStream());
}
TEST_P(UberQuicStreamIdManagerTest, SetMaxOpenIncomingStreams) {
const size_t kNumMaxIncomingStreams = 456;
manager_.SetMaxOpenIncomingUnidirectionalStreams(kNumMaxIncomingStreams);
manager_.SetMaxOpenIncomingBidirectionalStreams(kNumMaxIncomingStreams + 1);
EXPECT_EQ(kNumMaxIncomingStreams + 1,
manager_.GetMaxAllowdIncomingBidirectionalStreams());
EXPECT_EQ(kNumMaxIncomingStreams,
manager_.GetMaxAllowdIncomingUnidirectionalStreams());
EXPECT_EQ(manager_.max_incoming_bidirectional_streams(),
manager_.advertised_max_incoming_bidirectional_streams());
EXPECT_EQ(manager_.max_incoming_unidirectional_streams(),
manager_.advertised_max_incoming_unidirectional_streams());
size_t i;
for (i = 0; i < kNumMaxIncomingStreams; i++) {
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedUnidirectionalStreamId(i), nullptr));
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedBidirectionalStreamId(i), nullptr));
}
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedBidirectionalStreamId(i), nullptr));
std::string error_details;
EXPECT_FALSE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedUnidirectionalStreamId(i), &error_details));
EXPECT_EQ(error_details,
absl::StrCat(
"Stream id ", GetNthPeerInitiatedUnidirectionalStreamId(i),
" would exceed stream count limit ", kNumMaxIncomingStreams));
EXPECT_FALSE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedBidirectionalStreamId(i + 1), &error_details));
EXPECT_EQ(error_details,
absl::StrCat("Stream id ",
GetNthPeerInitiatedBidirectionalStreamId(i + 1),
" would exceed stream count limit ",
kNumMaxIncomingStreams + 1));
}
TEST_P(UberQuicStreamIdManagerTest, GetNextOutgoingStreamId) {
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingBidirectionalStreams(10));
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingUnidirectionalStreams(10));
EXPECT_EQ(GetNthSelfInitiatedBidirectionalStreamId(0),
manager_.GetNextOutgoingBidirectionalStreamId());
EXPECT_EQ(GetNthSelfInitiatedBidirectionalStreamId(1),
manager_.GetNextOutgoingBidirectionalStreamId());
EXPECT_EQ(GetNthSelfInitiatedUnidirectionalStreamId(0),
manager_.GetNextOutgoingUnidirectionalStreamId());
EXPECT_EQ(GetNthSelfInitiatedUnidirectionalStreamId(1),
manager_.GetNextOutgoingUnidirectionalStreamId());
}
TEST_P(UberQuicStreamIdManagerTest, AvailableStreams) {
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedBidirectionalStreamId(3), nullptr));
EXPECT_TRUE(
manager_.IsAvailableStream(GetNthPeerInitiatedBidirectionalStreamId(1)));
EXPECT_TRUE(
manager_.IsAvailableStream(GetNthPeerInitiatedBidirectionalStreamId(2)));
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
GetNthPeerInitiatedUnidirectionalStreamId(3), nullptr));
EXPECT_TRUE(
manager_.IsAvailableStream(GetNthPeerInitiatedUnidirectionalStreamId(1)));
EXPECT_TRUE(
manager_.IsAvailableStream(GetNthPeerInitiatedUnidirectionalStreamId(2)));
}
TEST_P(UberQuicStreamIdManagerTest, MaybeIncreaseLargestPeerStreamId) {
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
StreamCountToId(manager_.max_incoming_bidirectional_streams(),
QuicUtils::InvertPerspective(perspective()),
true),
nullptr));
EXPECT_TRUE(manager_.MaybeIncreaseLargestPeerStreamId(
StreamCountToId(manager_.max_incoming_bidirectional_streams(),
QuicUtils::InvertPerspective(perspective()),
false),
nullptr));
std::string expected_error_details =
perspective() == Perspective::IS_SERVER
? "Stream id 400 would exceed stream count limit 100"
: "Stream id 401 would exceed stream count limit 100";
std::string error_details;
EXPECT_FALSE(manager_.MaybeIncreaseLargestPeerStreamId(
StreamCountToId(manager_.max_incoming_bidirectional_streams() + 1,
QuicUtils::InvertPerspective(perspective()),
true),
&error_details));
EXPECT_EQ(expected_error_details, error_details);
expected_error_details =
perspective() == Perspective::IS_SERVER
? "Stream id 402 would exceed stream count limit 100"
: "Stream id 403 would exceed stream count limit 100";
EXPECT_FALSE(manager_.MaybeIncreaseLargestPeerStreamId(
StreamCountToId(manager_.max_incoming_bidirectional_streams() + 1,
QuicUtils::InvertPerspective(perspective()),
false),
&error_details));
EXPECT_EQ(expected_error_details, error_details);
}
TEST_P(UberQuicStreamIdManagerTest, OnStreamsBlockedFrame) {
QuicStreamCount stream_count =
manager_.advertised_max_incoming_bidirectional_streams() - 1;
QuicStreamsBlockedFrame frame(kInvalidControlFrameId, stream_count,
false);
EXPECT_CALL(delegate_,
SendMaxStreams(manager_.max_incoming_bidirectional_streams(),
frame.unidirectional))
.Times(0);
EXPECT_TRUE(manager_.OnStreamsBlockedFrame(frame, nullptr));
stream_count = manager_.advertised_max_incoming_unidirectional_streams() - 1;
frame.stream_count = stream_count;
frame.unidirectional = true;
EXPECT_CALL(delegate_,
SendMaxStreams(manager_.max_incoming_unidirectional_streams(),
frame.unidirectional))
.Times(0);
EXPECT_TRUE(manager_.OnStreamsBlockedFrame(frame, nullptr));
}
TEST_P(UberQuicStreamIdManagerTest, SetMaxOpenOutgoingStreamsPlusFrame) {
const size_t kNumMaxOutgoingStream = 123;
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingBidirectionalStreams(
kNumMaxOutgoingStream));
EXPECT_TRUE(manager_.MaybeAllowNewOutgoingUnidirectionalStreams(
kNumMaxOutgoingStream + 1));
EXPECT_EQ(kNumMaxOutgoingStream,
manager_.max_outgoing_bidirectional_streams());
EXPECT_EQ(kNumMaxOutgoingStream + 1,
manager_.max_outgoing_unidirectional_streams());
int i = kNumMaxOutgoingStream;
while (i) {
EXPECT_TRUE(manager_.CanOpenNextOutgoingBidirectionalStream());
manager_.GetNextOutgoingBidirectionalStreamId();
EXPECT_TRUE(manager_.CanOpenNextOutgoingUnidirectionalStream());
manager_.GetNextOutgoingUnidirectionalStreamId();
i--;
}
EXPECT_TRUE(manager_.CanOpenNextOutgoingUnidirectionalStream());
manager_.GetNextOutgoingUnidirectionalStreamId();
EXPECT_FALSE(manager_.CanOpenNextOutgoingUnidirectionalStream());
EXPECT_FALSE(manager_.CanOpenNextOutgoingBidirectionalStream());
}
}
}
} |
288 | cpp | google/quiche | qpack_decoder | quiche/quic/core/qpack/qpack_decoder.cc | quiche/quic/core/qpack/qpack_decoder_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_DECODER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_DECODER_H_
#include <cstdint>
#include <memory>
#include <set>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_decoder_stream_sender.h"
#include "quiche/quic/core/qpack/qpack_encoder_stream_receiver.h"
#include "quiche/quic/core/qpack/qpack_header_table.h"
#include "quiche/quic/core/qpack/qpack_progressive_decoder.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QpackDecoder
: public QpackEncoderStreamReceiver::Delegate,
public QpackProgressiveDecoder::BlockedStreamLimitEnforcer,
public QpackProgressiveDecoder::DecodingCompletedVisitor {
public:
class QUICHE_EXPORT EncoderStreamErrorDelegate {
public:
virtual ~EncoderStreamErrorDelegate() {}
virtual void OnEncoderStreamError(QuicErrorCode error_code,
absl::string_view error_message) = 0;
};
QpackDecoder(uint64_t maximum_dynamic_table_capacity,
uint64_t maximum_blocked_streams,
EncoderStreamErrorDelegate* encoder_stream_error_delegate);
~QpackDecoder() override;
void OnStreamReset(QuicStreamId stream_id);
bool OnStreamBlocked(QuicStreamId stream_id) override;
void OnStreamUnblocked(QuicStreamId stream_id) override;
void OnDecodingCompleted(QuicStreamId stream_id,
uint64_t required_insert_count) override;
std::unique_ptr<QpackProgressiveDecoder> CreateProgressiveDecoder(
QuicStreamId stream_id,
QpackProgressiveDecoder::HeadersHandlerInterface* handler);
void OnInsertWithNameReference(bool is_static, uint64_t name_index,
absl::string_view value) override;
void OnInsertWithoutNameReference(absl::string_view name,
absl::string_view value) override;
void OnDuplicate(uint64_t index) override;
void OnSetDynamicTableCapacity(uint64_t capacity) override;
void OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) override;
void set_qpack_stream_sender_delegate(QpackStreamSenderDelegate* delegate) {
decoder_stream_sender_.set_qpack_stream_sender_delegate(delegate);
}
QpackStreamReceiver* encoder_stream_receiver() {
return &encoder_stream_receiver_;
}
bool dynamic_table_entry_referenced() const {
return header_table_.dynamic_table_entry_referenced();
}
void FlushDecoderStream();
private:
EncoderStreamErrorDelegate* const encoder_stream_error_delegate_;
QpackEncoderStreamReceiver encoder_stream_receiver_;
QpackDecoderStreamSender decoder_stream_sender_;
QpackDecoderHeaderTable header_table_;
std::set<QuicStreamId> blocked_streams_;
const uint64_t maximum_blocked_streams_;
uint64_t known_received_count_;
};
class QUICHE_EXPORT NoopEncoderStreamErrorDelegate
: public QpackDecoder::EncoderStreamErrorDelegate {
public:
~NoopEncoderStreamErrorDelegate() override = default;
void OnEncoderStreamError(QuicErrorCode ,
absl::string_view ) override {}
};
}
#endif
#include "quiche/quic/core/qpack/qpack_decoder.h"
#include <memory>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_index_conversions.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
QpackDecoder::QpackDecoder(
uint64_t maximum_dynamic_table_capacity, uint64_t maximum_blocked_streams,
EncoderStreamErrorDelegate* encoder_stream_error_delegate)
: encoder_stream_error_delegate_(encoder_stream_error_delegate),
encoder_stream_receiver_(this),
maximum_blocked_streams_(maximum_blocked_streams),
known_received_count_(0) {
QUICHE_DCHECK(encoder_stream_error_delegate_);
header_table_.SetMaximumDynamicTableCapacity(maximum_dynamic_table_capacity);
}
QpackDecoder::~QpackDecoder() {}
void QpackDecoder::OnStreamReset(QuicStreamId stream_id) {
if (header_table_.maximum_dynamic_table_capacity() > 0) {
decoder_stream_sender_.SendStreamCancellation(stream_id);
if (!GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
decoder_stream_sender_.Flush();
}
}
}
bool QpackDecoder::OnStreamBlocked(QuicStreamId stream_id) {
auto result = blocked_streams_.insert(stream_id);
QUICHE_DCHECK(result.second);
return blocked_streams_.size() <= maximum_blocked_streams_;
}
void QpackDecoder::OnStreamUnblocked(QuicStreamId stream_id) {
size_t result = blocked_streams_.erase(stream_id);
QUICHE_DCHECK_EQ(1u, result);
}
void QpackDecoder::OnDecodingCompleted(QuicStreamId stream_id,
uint64_t required_insert_count) {
if (required_insert_count > 0) {
decoder_stream_sender_.SendHeaderAcknowledgement(stream_id);
if (known_received_count_ < required_insert_count) {
known_received_count_ = required_insert_count;
}
}
if (known_received_count_ < header_table_.inserted_entry_count()) {
decoder_stream_sender_.SendInsertCountIncrement(
header_table_.inserted_entry_count() - known_received_count_);
known_received_count_ = header_table_.inserted_entry_count();
}
if (!GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
decoder_stream_sender_.Flush();
}
}
void QpackDecoder::OnInsertWithNameReference(bool is_static,
uint64_t name_index,
absl::string_view value) {
if (is_static) {
auto entry = header_table_.LookupEntry( true, name_index);
if (!entry) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INVALID_STATIC_ENTRY,
"Invalid static table entry.");
return;
}
if (!header_table_.EntryFitsDynamicTableCapacity(entry->name(), value)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_STATIC,
"Error inserting entry with name reference.");
return;
}
header_table_.InsertEntry(entry->name(), value);
return;
}
uint64_t absolute_index;
if (!QpackEncoderStreamRelativeIndexToAbsoluteIndex(
name_index, header_table_.inserted_entry_count(), &absolute_index)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INSERTION_INVALID_RELATIVE_INDEX,
"Invalid relative index.");
return;
}
const QpackEntry* entry =
header_table_.LookupEntry( false, absolute_index);
if (!entry) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INSERTION_DYNAMIC_ENTRY_NOT_FOUND,
"Dynamic table entry not found.");
return;
}
if (!header_table_.EntryFitsDynamicTableCapacity(entry->name(), value)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_DYNAMIC,
"Error inserting entry with name reference.");
return;
}
header_table_.InsertEntry(entry->name(), value);
}
void QpackDecoder::OnInsertWithoutNameReference(absl::string_view name,
absl::string_view value) {
if (!header_table_.EntryFitsDynamicTableCapacity(name, value)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_LITERAL,
"Error inserting literal entry.");
return;
}
header_table_.InsertEntry(name, value);
}
void QpackDecoder::OnDuplicate(uint64_t index) {
uint64_t absolute_index;
if (!QpackEncoderStreamRelativeIndexToAbsoluteIndex(
index, header_table_.inserted_entry_count(), &absolute_index)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_DUPLICATE_INVALID_RELATIVE_INDEX,
"Invalid relative index.");
return;
}
const QpackEntry* entry =
header_table_.LookupEntry( false, absolute_index);
if (!entry) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_DUPLICATE_DYNAMIC_ENTRY_NOT_FOUND,
"Dynamic table entry not found.");
return;
}
if (!header_table_.EntryFitsDynamicTableCapacity(entry->name(),
entry->value())) {
OnErrorDetected(QUIC_INTERNAL_ERROR, "Error inserting duplicate entry.");
return;
}
header_table_.InsertEntry(entry->name(), entry->value());
}
void QpackDecoder::OnSetDynamicTableCapacity(uint64_t capacity) {
if (!header_table_.SetDynamicTableCapacity(capacity)) {
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_SET_DYNAMIC_TABLE_CAPACITY,
"Error updating dynamic table capacity.");
}
}
void QpackDecoder::OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) {
encoder_stream_error_delegate_->OnEncoderStreamError(error_code,
error_message);
}
std::unique_ptr<QpackProgressiveDecoder> QpackDecoder::CreateProgressiveDecoder(
QuicStreamId stream_id,
QpackProgressiveDecoder::HeadersHandlerInterface* handler) {
return std::make_unique<QpackProgressiveDecoder>(stream_id, this, this,
&header_table_, handler);
}
void QpackDecoder::FlushDecoderStream() { decoder_stream_sender_.Flush(); }
} | #include "quiche/quic/core/qpack/qpack_decoder.h"
#include <algorithm>
#include <memory>
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/qpack/qpack_decoder_test_utils.h"
#include "quiche/quic/test_tools/qpack/qpack_test_utils.h"
using ::testing::_;
using ::testing::Eq;
using ::testing::Invoke;
using ::testing::Mock;
using ::testing::Sequence;
using ::testing::StrictMock;
using ::testing::Values;
namespace quic {
namespace test {
namespace {
const char* const kHeaderAcknowledgement = "\x81";
const uint64_t kMaximumDynamicTableCapacity = 1024;
const uint64_t kMaximumBlockedStreams = 1;
class QpackDecoderTest : public QuicTestWithParam<FragmentMode> {
protected:
QpackDecoderTest()
: qpack_decoder_(kMaximumDynamicTableCapacity, kMaximumBlockedStreams,
&encoder_stream_error_delegate_),
fragment_mode_(GetParam()) {
qpack_decoder_.set_qpack_stream_sender_delegate(
&decoder_stream_sender_delegate_);
}
~QpackDecoderTest() override = default;
void SetUp() override {
ON_CALL(handler_, OnDecodingErrorDetected(_, _))
.WillByDefault(Invoke([this](QuicErrorCode ,
absl::string_view ) {
progressive_decoder_.reset();
}));
}
void DecodeEncoderStreamData(absl::string_view data) {
qpack_decoder_.encoder_stream_receiver()->Decode(data);
}
std::unique_ptr<QpackProgressiveDecoder> CreateProgressiveDecoder(
QuicStreamId stream_id) {
return qpack_decoder_.CreateProgressiveDecoder(stream_id, &handler_);
}
void FlushDecoderStream() { qpack_decoder_.FlushDecoderStream(); }
void StartDecoding() {
progressive_decoder_ = CreateProgressiveDecoder( 1);
}
void DecodeData(absl::string_view data) {
auto fragment_size_generator =
FragmentModeToFragmentSizeGenerator(fragment_mode_);
while (progressive_decoder_ && !data.empty()) {
size_t fragment_size = std::min(fragment_size_generator(), data.size());
progressive_decoder_->Decode(data.substr(0, fragment_size));
data = data.substr(fragment_size);
}
}
void EndDecoding() {
if (progressive_decoder_) {
progressive_decoder_->EndHeaderBlock();
}
}
void DecodeHeaderBlock(absl::string_view data) {
StartDecoding();
DecodeData(data);
EndDecoding();
}
StrictMock<MockEncoderStreamErrorDelegate> encoder_stream_error_delegate_;
StrictMock<MockQpackStreamSenderDelegate> decoder_stream_sender_delegate_;
StrictMock<MockHeadersHandler> handler_;
private:
QpackDecoder qpack_decoder_;
const FragmentMode fragment_mode_;
std::unique_ptr<QpackProgressiveDecoder> progressive_decoder_;
};
INSTANTIATE_TEST_SUITE_P(All, QpackDecoderTest,
Values(FragmentMode::kSingleChunk,
FragmentMode::kOctetByOctet));
TEST_P(QpackDecoderTest, NoPrefix) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Incomplete header data prefix.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("00", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, InvalidPrefix) {
StartDecoding();
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Encoded integer too large.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("ffffffffffffffffffffffffffff", &input));
DecodeData(input);
}
TEST_P(QpackDecoderTest, EmptyHeaderBlock) {
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("0000", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, LiteralEntryEmptyName) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(""), Eq("foo")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("00002003666f6f", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, LiteralEntryEmptyValue) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f00", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, LiteralEntryEmptyNameAndValue) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(""), Eq("")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("00002000", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, SimpleLiteralEntry) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f03626172", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, MultipleLiteralEntries) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar")));
std::string str(127, 'a');
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foobaar"), absl::string_view(str)));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"0000"
"23666f6f03626172"
"2700666f6f62616172"
"7f0061616161616161"
"616161616161616161"
"6161616161616161616161616161616161616161616161616161616161616161616161"
"6161616161616161616161616161616161616161616161616161616161616161616161"
"6161616161616161616161616161616161616161616161616161616161616161616161"
"616161616161",
&input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, NameLenTooLargeForVarintDecoder) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Encoded integer too large.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000027ffffffffffffffffffff", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, NameLenExceedsLimit) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("String literal too long.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000027ffff7f", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, ValueLenTooLargeForVarintDecoder) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Encoded integer too large.")));
std::string input;
ASSERT_TRUE(
absl::HexStringToBytes("000023666f6f7fffffffffffffffffffff", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, ValueLenExceedsLimit) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("String literal too long.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f7fffff7f", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, LineFeedInValue) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ba\nr")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f0462610a72", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, IncompleteHeaderBlock) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Incomplete header block.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("00002366", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, HuffmanSimple) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("custom-key"), Eq("custom-value")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"00002f0125a849e95ba97d7f8925a849e95bb8e8b4bf", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, AlternatingHuffmanNonHuffman) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("custom-key"), Eq("custom-value")))
.Times(4);
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"0000"
"2f0125a849e95ba97d7f"
"8925a849e95bb8e8b4bf"
"2703637573746f6d2d6b6579"
"0c637573746f6d2d76616c7565"
"2f0125a849e95ba97d7f"
"0c637573746f6d2d76616c7565"
"2703637573746f6d2d6b6579"
"8925a849e95bb8e8b4bf",
&input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, HuffmanNameDoesNotHaveEOSPrefix) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error in Huffman-encoded string.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"00002f0125a849e95ba97d7e8925a849e95bb8e8b4bf", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, HuffmanValueDoesNotHaveEOSPrefix) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error in Huffman-encoded string.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"00002f0125a849e95ba97d7f8925a849e95bb8e8b4be", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, HuffmanNameEOSPrefixTooLong) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error in Huffman-encoded string.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"00002f0225a849e95ba97d7fff8925a849e95bb8e8b4bf", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, HuffmanValueEOSPrefixTooLong) {
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error in Huffman-encoded string.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"00002f0125a849e95ba97d7f8a25a849e95bb8e8b4bfff", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, StaticTable) {
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("GET")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("POST")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("TRACE")));
EXPECT_CALL(handler_,
OnHeaderDecoded(Eq("accept-encoding"), Eq("gzip, deflate, br")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("accept-encoding"), Eq("compress")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("accept-encoding"), Eq("")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("location"), Eq("")));
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("location"), Eq("foo")));
EXPECT_CALL(handler_, OnDecodingCompleted());
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"0000d1dfccd45f108621e9aec2a11f5c8294e75f000554524143455f1000", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, TooHighStaticTableIndex) {
EXPECT_CALL(handler_,
OnHeaderDecoded(Eq("x-frame-options"), Eq("sameorigin")));
EXPECT_CALL(handler_,
OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Static table entry not found.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("0000ff23ff24", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, DynamicTable) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"3fe107"
"6294e703626172"
"80035a5a5a"
"cf8294e7"
"01",
&input));
DecodeEncoderStreamData(input);
Sequence s;
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("foo")))
.InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("ZZ"))).InSequence(s);
if (!GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
EXPECT_CALL(handler_, OnDecodingCompleted()).InSequence(s);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
ASSERT_TRUE(absl::HexStringToBytes(
"0500"
"83"
"82"
"81"
"80"
"41025a5a",
&input));
DecodeHeaderBlock(input);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
FlushDecoderStream();
}
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("foo")))
.InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("ZZ"))).InSequence(s);
if (!GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
EXPECT_CALL(handler_, OnDecodingCompleted()).InSequence(s);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
ASSERT_TRUE(absl::HexStringToBytes(
"0502"
"85"
"84"
"83"
"82"
"43025a5a",
&input));
DecodeHeaderBlock(input);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
FlushDecoderStream();
}
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("foo")))
.InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("ZZZ"))).InSequence(s);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq(":method"), Eq("ZZ"))).InSequence(s);
if (!GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
EXPECT_CALL(handler_, OnDecodingCompleted()).InSequence(s);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)))
.InSequence(s);
}
ASSERT_TRUE(absl::HexStringToBytes(
"0582"
"80"
"10"
"11"
"12"
"01025a5a",
&input));
DecodeHeaderBlock(input);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
FlushDecoderStream();
}
}
TEST_P(QpackDecoderTest, DecreasingDynamicTableCapacityEvictsEntries) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fe107", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("6294e703626172", &input));
DecodeEncoderStreamData(input);
EXPECT_CALL(handler_, OnHeaderDecoded(Eq("foo"), Eq("bar")));
EXPECT_CALL(handler_, OnDecodingCompleted());
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)));
ASSERT_TRUE(absl::HexStringToBytes(
"0200"
"80",
&input));
DecodeHeaderBlock(input);
ASSERT_TRUE(absl::HexStringToBytes("3f01", &input));
DecodeEncoderStreamData(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Dynamic table entry already evicted.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0200"
"80",
&input));
DecodeHeaderBlock(input);
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
FlushDecoderStream();
}
}
TEST_P(QpackDecoderTest, EncoderStreamErrorEntryTooLarge) {
std::string input;
EXPECT_CALL(
encoder_stream_error_delegate_,
OnEncoderStreamError(QUIC_QPACK_ENCODER_STREAM_ERROR_INSERTING_LITERAL,
Eq("Error inserting literal entry.")));
ASSERT_TRUE(absl::HexStringToBytes("3f03", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("6294e703626172", &input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, EncoderStreamErrorInvalidStaticTableEntry) {
EXPECT_CALL(
encoder_stream_error_delegate_,
OnEncoderStreamError(QUIC_QPACK_ENCODER_STREAM_INVALID_STATIC_ENTRY,
Eq("Invalid static table entry.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("ff2400", &input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, EncoderStreamErrorInvalidDynamicTableEntry) {
EXPECT_CALL(encoder_stream_error_delegate_,
OnEncoderStreamError(
QUIC_QPACK_ENCODER_STREAM_INSERTION_INVALID_RELATIVE_INDEX,
Eq("Invalid relative index.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"3fe107"
"6294e703626172"
"8100",
&input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, EncoderStreamErrorDuplicateInvalidEntry) {
EXPECT_CALL(encoder_stream_error_delegate_,
OnEncoderStreamError(
QUIC_QPACK_ENCODER_STREAM_DUPLICATE_INVALID_RELATIVE_INDEX,
Eq("Invalid relative index.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes(
"3fe107"
"6294e703626172"
"01",
&input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, EncoderStreamErrorTooLargeInteger) {
EXPECT_CALL(encoder_stream_error_delegate_,
OnEncoderStreamError(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fffffffffffffffffffff", &input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, InvalidDynamicEntryWhenBaseIsZero) {
EXPECT_CALL(handler_, OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Invalid relative index.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fe107", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("6294e703626172", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes(
"0280"
"80",
&input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, InvalidNegativeBase) {
EXPECT_CALL(handler_, OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error calculating Base.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("0281", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, InvalidDynamicEntryByRelativeIndex) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fe107", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("6294e703626172", &input));
DecodeEncoderStreamData(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Invalid relative index.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0200"
"81",
&input));
DecodeHeaderBlock(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Invalid relative index.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0200"
"4100",
&input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, EvictedDynamicTableEntry) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3f61", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("6294e703626172", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(absl::HexStringToBytes("00000000", &input));
DecodeEncoderStreamData(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Dynamic table entry already evicted.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0500"
"82",
&input));
DecodeHeaderBlock(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Dynamic table entry already evicted.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0500"
"4200",
&input));
DecodeHeaderBlock(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Dynamic table entry already evicted.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0380"
"10",
&input));
DecodeHeaderBlock(input);
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Dynamic table entry already evicted.")));
ASSERT_TRUE(absl::HexStringToBytes(
"0380"
"0000",
&input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, TableCapacityMustNotExceedMaximum) {
EXPECT_CALL(
encoder_stream_error_delegate_,
OnEncoderStreamError(QUIC_QPACK_ENCODER_STREAM_SET_DYNAMIC_TABLE_CAPACITY,
Eq("Error updating dynamic table capacity.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fe10f", &input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, SetDynamicTableCapacity) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3f61", &input));
DecodeEncoderStreamData(input);
}
TEST_P(QpackDecoderTest, InvalidEncodedRequiredInsertCount) {
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error decoding Required Insert Count.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("4100", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, DataAfterInvalidEncodedRequiredInsertCount) {
EXPECT_CALL(handler_, OnDecodingErrorDetected(
QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Error decoding Required Insert Count.")));
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("410000", &input));
DecodeHeaderBlock(input);
}
TEST_P(QpackDecoderTest, WrappedRequiredInsertCount) {
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("3fe107", &input));
DecodeEncoderStreamData(input);
ASSERT_TRUE(
absl::HexStringToBytes("6294e7"
"7fd903",
&input));
DecodeEncoderStreamData(input);
std::string header_value(600, 'Z');
DecodeEncoderStreamData(header_value);
DecodeEncoderStreamDat |
289 | cpp | google/quiche | qpack_instruction_decoder | quiche/quic/core/qpack/qpack_instruction_decoder.cc | quiche/quic/core/qpack/qpack_instruction_decoder_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_INSTRUCTION_DECODER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_INSTRUCTION_DECODER_H_
#include <cstddef>
#include <cstdint>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/http2/hpack/huffman/hpack_huffman_decoder.h"
#include "quiche/http2/hpack/varint/hpack_varint_decoder.h"
#include "quiche/quic/core/qpack/qpack_instructions.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QpackInstructionDecoder {
public:
enum class ErrorCode {
INTEGER_TOO_LARGE,
STRING_LITERAL_TOO_LONG,
HUFFMAN_ENCODING_ERROR,
};
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() = default;
virtual bool OnInstructionDecoded(const QpackInstruction* instruction) = 0;
virtual void OnInstructionDecodingError(
ErrorCode error_code, absl::string_view error_message) = 0;
};
QpackInstructionDecoder(const QpackLanguage* language, Delegate* delegate);
QpackInstructionDecoder() = delete;
QpackInstructionDecoder(const QpackInstructionDecoder&) = delete;
QpackInstructionDecoder& operator=(const QpackInstructionDecoder&) = delete;
bool Decode(absl::string_view data);
bool AtInstructionBoundary() const;
bool s_bit() const { return s_bit_; }
uint64_t varint() const { return varint_; }
uint64_t varint2() const { return varint2_; }
const std::string& name() const { return name_; }
const std::string& value() const { return value_; }
private:
enum class State {
kStartInstruction,
kStartField,
kReadBit,
kVarintStart,
kVarintResume,
kVarintDone,
kReadString,
kReadStringDone
};
bool DoStartInstruction(absl::string_view data);
bool DoStartField();
bool DoReadBit(absl::string_view data);
bool DoVarintStart(absl::string_view data, size_t* bytes_consumed);
bool DoVarintResume(absl::string_view data, size_t* bytes_consumed);
bool DoVarintDone();
bool DoReadString(absl::string_view data, size_t* bytes_consumed);
bool DoReadStringDone();
const QpackInstruction* LookupOpcode(uint8_t byte) const;
void OnError(ErrorCode error_code, absl::string_view error_message);
const QpackLanguage* const language_;
Delegate* const delegate_;
bool s_bit_;
uint64_t varint_;
uint64_t varint2_;
std::string name_;
std::string value_;
bool is_huffman_encoded_;
size_t string_length_;
http2::HpackVarintDecoder varint_decoder_;
http2::HpackHuffmanDecoder huffman_decoder_;
bool error_detected_;
State state_;
const QpackInstruction* instruction_;
QpackInstructionFields::const_iterator field_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_instruction_decoder.h"
#include <algorithm>
#include <string>
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace {
const size_t kStringLiteralLengthLimit = 1024 * 1024;
}
QpackInstructionDecoder::QpackInstructionDecoder(const QpackLanguage* language,
Delegate* delegate)
: language_(language),
delegate_(delegate),
s_bit_(false),
varint_(0),
varint2_(0),
is_huffman_encoded_(false),
string_length_(0),
error_detected_(false),
state_(State::kStartInstruction) {}
bool QpackInstructionDecoder::Decode(absl::string_view data) {
QUICHE_DCHECK(!data.empty());
QUICHE_DCHECK(!error_detected_);
while (true) {
bool success = true;
size_t bytes_consumed = 0;
switch (state_) {
case State::kStartInstruction:
success = DoStartInstruction(data);
break;
case State::kStartField:
success = DoStartField();
break;
case State::kReadBit:
success = DoReadBit(data);
break;
case State::kVarintStart:
success = DoVarintStart(data, &bytes_consumed);
break;
case State::kVarintResume:
success = DoVarintResume(data, &bytes_consumed);
break;
case State::kVarintDone:
success = DoVarintDone();
break;
case State::kReadString:
success = DoReadString(data, &bytes_consumed);
break;
case State::kReadStringDone:
success = DoReadStringDone();
break;
}
if (!success) {
return false;
}
QUICHE_DCHECK(!error_detected_);
QUICHE_DCHECK_LE(bytes_consumed, data.size());
data = absl::string_view(data.data() + bytes_consumed,
data.size() - bytes_consumed);
if (data.empty() && (state_ != State::kStartField) &&
(state_ != State::kVarintDone) && (state_ != State::kReadStringDone)) {
return true;
}
}
}
bool QpackInstructionDecoder::AtInstructionBoundary() const {
return state_ == State::kStartInstruction;
}
bool QpackInstructionDecoder::DoStartInstruction(absl::string_view data) {
QUICHE_DCHECK(!data.empty());
instruction_ = LookupOpcode(data[0]);
field_ = instruction_->fields.begin();
state_ = State::kStartField;
return true;
}
bool QpackInstructionDecoder::DoStartField() {
if (field_ == instruction_->fields.end()) {
if (!delegate_->OnInstructionDecoded(instruction_)) {
return false;
}
state_ = State::kStartInstruction;
return true;
}
switch (field_->type) {
case QpackInstructionFieldType::kSbit:
case QpackInstructionFieldType::kName:
case QpackInstructionFieldType::kValue:
state_ = State::kReadBit;
return true;
case QpackInstructionFieldType::kVarint:
case QpackInstructionFieldType::kVarint2:
state_ = State::kVarintStart;
return true;
default:
QUIC_BUG(quic_bug_10767_1) << "Invalid field type.";
return false;
}
}
bool QpackInstructionDecoder::DoReadBit(absl::string_view data) {
QUICHE_DCHECK(!data.empty());
switch (field_->type) {
case QpackInstructionFieldType::kSbit: {
const uint8_t bitmask = field_->param;
s_bit_ = (data[0] & bitmask) == bitmask;
++field_;
state_ = State::kStartField;
return true;
}
case QpackInstructionFieldType::kName:
case QpackInstructionFieldType::kValue: {
const uint8_t prefix_length = field_->param;
QUICHE_DCHECK_GE(7, prefix_length);
const uint8_t bitmask = 1 << prefix_length;
is_huffman_encoded_ = (data[0] & bitmask) == bitmask;
state_ = State::kVarintStart;
return true;
}
default:
QUIC_BUG(quic_bug_10767_2) << "Invalid field type.";
return false;
}
}
bool QpackInstructionDecoder::DoVarintStart(absl::string_view data,
size_t* bytes_consumed) {
QUICHE_DCHECK(!data.empty());
QUICHE_DCHECK(field_->type == QpackInstructionFieldType::kVarint ||
field_->type == QpackInstructionFieldType::kVarint2 ||
field_->type == QpackInstructionFieldType::kName ||
field_->type == QpackInstructionFieldType::kValue);
http2::DecodeBuffer buffer(data.data() + 1, data.size() - 1);
http2::DecodeStatus status =
varint_decoder_.Start(data[0], field_->param, &buffer);
*bytes_consumed = 1 + buffer.Offset();
switch (status) {
case http2::DecodeStatus::kDecodeDone:
state_ = State::kVarintDone;
return true;
case http2::DecodeStatus::kDecodeInProgress:
state_ = State::kVarintResume;
return true;
case http2::DecodeStatus::kDecodeError:
OnError(ErrorCode::INTEGER_TOO_LARGE, "Encoded integer too large.");
return false;
default:
QUIC_BUG(quic_bug_10767_3) << "Unknown decode status " << status;
return false;
}
}
bool QpackInstructionDecoder::DoVarintResume(absl::string_view data,
size_t* bytes_consumed) {
QUICHE_DCHECK(!data.empty());
QUICHE_DCHECK(field_->type == QpackInstructionFieldType::kVarint ||
field_->type == QpackInstructionFieldType::kVarint2 ||
field_->type == QpackInstructionFieldType::kName ||
field_->type == QpackInstructionFieldType::kValue);
http2::DecodeBuffer buffer(data);
http2::DecodeStatus status = varint_decoder_.Resume(&buffer);
*bytes_consumed = buffer.Offset();
switch (status) {
case http2::DecodeStatus::kDecodeDone:
state_ = State::kVarintDone;
return true;
case http2::DecodeStatus::kDecodeInProgress:
QUICHE_DCHECK_EQ(*bytes_consumed, data.size());
QUICHE_DCHECK(buffer.Empty());
return true;
case http2::DecodeStatus::kDecodeError:
OnError(ErrorCode::INTEGER_TOO_LARGE, "Encoded integer too large.");
return false;
default:
QUIC_BUG(quic_bug_10767_4) << "Unknown decode status " << status;
return false;
}
}
bool QpackInstructionDecoder::DoVarintDone() {
QUICHE_DCHECK(field_->type == QpackInstructionFieldType::kVarint ||
field_->type == QpackInstructionFieldType::kVarint2 ||
field_->type == QpackInstructionFieldType::kName ||
field_->type == QpackInstructionFieldType::kValue);
if (field_->type == QpackInstructionFieldType::kVarint) {
varint_ = varint_decoder_.value();
++field_;
state_ = State::kStartField;
return true;
}
if (field_->type == QpackInstructionFieldType::kVarint2) {
varint2_ = varint_decoder_.value();
++field_;
state_ = State::kStartField;
return true;
}
string_length_ = varint_decoder_.value();
if (string_length_ > kStringLiteralLengthLimit) {
OnError(ErrorCode::STRING_LITERAL_TOO_LONG, "String literal too long.");
return false;
}
std::string* const string =
(field_->type == QpackInstructionFieldType::kName) ? &name_ : &value_;
string->clear();
if (string_length_ == 0) {
++field_;
state_ = State::kStartField;
return true;
}
string->reserve(string_length_);
state_ = State::kReadString;
return true;
}
bool QpackInstructionDecoder::DoReadString(absl::string_view data,
size_t* bytes_consumed) {
QUICHE_DCHECK(!data.empty());
QUICHE_DCHECK(field_->type == QpackInstructionFieldType::kName ||
field_->type == QpackInstructionFieldType::kValue);
std::string* const string =
(field_->type == QpackInstructionFieldType::kName) ? &name_ : &value_;
QUICHE_DCHECK_LT(string->size(), string_length_);
*bytes_consumed = std::min(string_length_ - string->size(), data.size());
string->append(data.data(), *bytes_consumed);
QUICHE_DCHECK_LE(string->size(), string_length_);
if (string->size() == string_length_) {
state_ = State::kReadStringDone;
}
return true;
}
bool QpackInstructionDecoder::DoReadStringDone() {
QUICHE_DCHECK(field_->type == QpackInstructionFieldType::kName ||
field_->type == QpackInstructionFieldType::kValue);
std::string* const string =
(field_->type == QpackInstructionFieldType::kName) ? &name_ : &value_;
QUICHE_DCHECK_EQ(string->size(), string_length_);
if (is_huffman_encoded_) {
huffman_decoder_.Reset();
std::string decoded_value;
huffman_decoder_.Decode(*string, &decoded_value);
if (!huffman_decoder_.InputProperlyTerminated()) {
OnError(ErrorCode::HUFFMAN_ENCODING_ERROR,
"Error in Huffman-encoded string.");
return false;
}
*string = std::move(decoded_value);
}
++field_;
state_ = State::kStartField;
return true;
}
const QpackInstruction* QpackInstructionDecoder::LookupOpcode(
uint8_t byte) const {
for (const auto* instruction : *language_) {
if ((byte & instruction->opcode.mask) == instruction->opcode.value) {
return instruction;
}
}
QUICHE_DCHECK(false);
return nullptr;
}
void QpackInstructionDecoder::OnError(ErrorCode error_code,
absl::string_view error_message) {
QUICHE_DCHECK(!error_detected_);
error_detected_ = true;
delegate_->OnInstructionDecodingError(error_code, error_message);
}
} | #include "quiche/quic/core/qpack/qpack_instruction_decoder.h"
#include <algorithm>
#include <memory>
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_instructions.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/qpack/qpack_test_utils.h"
using ::testing::_;
using ::testing::Eq;
using ::testing::Expectation;
using ::testing::InvokeWithoutArgs;
using ::testing::Return;
using ::testing::StrictMock;
using ::testing::Values;
namespace quic {
namespace test {
namespace {
const QpackInstruction* TestInstruction1() {
static const QpackInstruction* const instruction =
new QpackInstruction{QpackInstructionOpcode{0x00, 0x80},
{{QpackInstructionFieldType::kSbit, 0x40},
{QpackInstructionFieldType::kVarint, 6},
{QpackInstructionFieldType::kVarint2, 8}}};
return instruction;
}
const QpackInstruction* TestInstruction2() {
static const QpackInstruction* const instruction =
new QpackInstruction{QpackInstructionOpcode{0x80, 0x80},
{{QpackInstructionFieldType::kName, 6},
{QpackInstructionFieldType::kValue, 7}}};
return instruction;
}
const QpackLanguage* TestLanguage() {
static const QpackLanguage* const language =
new QpackLanguage{TestInstruction1(), TestInstruction2()};
return language;
}
class MockDelegate : public QpackInstructionDecoder::Delegate {
public:
MockDelegate() {
ON_CALL(*this, OnInstructionDecoded(_)).WillByDefault(Return(true));
}
MockDelegate(const MockDelegate&) = delete;
MockDelegate& operator=(const MockDelegate&) = delete;
~MockDelegate() override = default;
MOCK_METHOD(bool, OnInstructionDecoded, (const QpackInstruction*),
(override));
MOCK_METHOD(void, OnInstructionDecodingError,
(QpackInstructionDecoder::ErrorCode error_code,
absl::string_view error_message),
(override));
};
class QpackInstructionDecoderTest : public QuicTestWithParam<FragmentMode> {
protected:
QpackInstructionDecoderTest()
: decoder_(std::make_unique<QpackInstructionDecoder>(TestLanguage(),
&delegate_)),
fragment_mode_(GetParam()) {}
~QpackInstructionDecoderTest() override = default;
void SetUp() override {
ON_CALL(delegate_, OnInstructionDecodingError(_, _))
.WillByDefault(InvokeWithoutArgs([this]() { decoder_.reset(); }));
}
void DecodeInstruction(absl::string_view data) {
EXPECT_TRUE(decoder_->AtInstructionBoundary());
FragmentSizeGenerator fragment_size_generator =
FragmentModeToFragmentSizeGenerator(fragment_mode_);
while (!data.empty()) {
size_t fragment_size = std::min(fragment_size_generator(), data.size());
bool success = decoder_->Decode(data.substr(0, fragment_size));
if (!decoder_) {
EXPECT_FALSE(success);
return;
}
EXPECT_TRUE(success);
data = data.substr(fragment_size);
if (!data.empty()) {
EXPECT_FALSE(decoder_->AtInstructionBoundary());
}
}
EXPECT_TRUE(decoder_->AtInstructionBoundary());
}
StrictMock<MockDelegate> delegate_;
std::unique_ptr<QpackInstructionDecoder> decoder_;
private:
const FragmentMode fragment_mode_;
};
INSTANTIATE_TEST_SUITE_P(All, QpackInstructionDecoderTest,
Values(FragmentMode::kSingleChunk,
FragmentMode::kOctetByOctet));
TEST_P(QpackInstructionDecoderTest, SBitAndVarint2) {
std::string encoded_data;
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction1()));
ASSERT_TRUE(absl::HexStringToBytes("7f01ff65", &encoded_data));
DecodeInstruction(encoded_data);
EXPECT_TRUE(decoder_->s_bit());
EXPECT_EQ(64u, decoder_->varint());
EXPECT_EQ(356u, decoder_->varint2());
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction1()));
ASSERT_TRUE(absl::HexStringToBytes("05c8", &encoded_data));
DecodeInstruction(encoded_data);
EXPECT_FALSE(decoder_->s_bit());
EXPECT_EQ(5u, decoder_->varint());
EXPECT_EQ(200u, decoder_->varint2());
}
TEST_P(QpackInstructionDecoderTest, NameAndValue) {
std::string encoded_data;
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction2()));
ASSERT_TRUE(absl::HexStringToBytes("83666f6f03626172", &encoded_data));
DecodeInstruction(encoded_data);
EXPECT_EQ("foo", decoder_->name());
EXPECT_EQ("bar", decoder_->value());
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction2()));
ASSERT_TRUE(absl::HexStringToBytes("8000", &encoded_data));
DecodeInstruction(encoded_data);
EXPECT_EQ("", decoder_->name());
EXPECT_EQ("", decoder_->value());
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction2()));
ASSERT_TRUE(absl::HexStringToBytes("c294e7838c767f", &encoded_data));
DecodeInstruction(encoded_data);
EXPECT_EQ("foo", decoder_->name());
EXPECT_EQ("bar", decoder_->value());
}
TEST_P(QpackInstructionDecoderTest, InvalidHuffmanEncoding) {
std::string encoded_data;
EXPECT_CALL(delegate_,
OnInstructionDecodingError(
QpackInstructionDecoder::ErrorCode::HUFFMAN_ENCODING_ERROR,
Eq("Error in Huffman-encoded string.")));
ASSERT_TRUE(absl::HexStringToBytes("c1ff", &encoded_data));
DecodeInstruction(encoded_data);
}
TEST_P(QpackInstructionDecoderTest, InvalidVarintEncoding) {
std::string encoded_data;
EXPECT_CALL(delegate_,
OnInstructionDecodingError(
QpackInstructionDecoder::ErrorCode::INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
ASSERT_TRUE(absl::HexStringToBytes("ffffffffffffffffffffff", &encoded_data));
DecodeInstruction(encoded_data);
}
TEST_P(QpackInstructionDecoderTest, StringLiteralTooLong) {
std::string encoded_data;
EXPECT_CALL(delegate_,
OnInstructionDecodingError(
QpackInstructionDecoder::ErrorCode::STRING_LITERAL_TOO_LONG,
Eq("String literal too long.")));
ASSERT_TRUE(absl::HexStringToBytes("bfffff7f", &encoded_data));
DecodeInstruction(encoded_data);
}
TEST_P(QpackInstructionDecoderTest, DelegateSignalsError) {
Expectation first_call =
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction1()))
.WillOnce(InvokeWithoutArgs([this]() -> bool {
EXPECT_EQ(1u, decoder_->varint());
return true;
}));
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction1()))
.After(first_call)
.WillOnce(InvokeWithoutArgs([this]() -> bool {
EXPECT_EQ(2u, decoder_->varint());
return false;
}));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("01000200030004000500", &encoded_data));
EXPECT_FALSE(decoder_->Decode(encoded_data));
}
TEST_P(QpackInstructionDecoderTest, DelegateSignalsErrorAndDestroysDecoder) {
EXPECT_CALL(delegate_, OnInstructionDecoded(TestInstruction1()))
.WillOnce(InvokeWithoutArgs([this]() -> bool {
EXPECT_EQ(1u, decoder_->varint());
decoder_.reset();
return false;
}));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("0100", &encoded_data));
DecodeInstruction(encoded_data);
}
}
}
} |
290 | cpp | google/quiche | qpack_receive_stream | quiche/quic/core/qpack/qpack_receive_stream.cc | quiche/quic/core/qpack/qpack_receive_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_RECEIVE_STREAM_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_RECEIVE_STREAM_H_
#include "quiche/quic/core/qpack/qpack_stream_receiver.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QuicSession;
class QUICHE_EXPORT QpackReceiveStream : public QuicStream {
public:
QpackReceiveStream(PendingStream* pending, QuicSession* session,
QpackStreamReceiver* receiver);
QpackReceiveStream(const QpackReceiveStream&) = delete;
QpackReceiveStream& operator=(const QpackReceiveStream&) = delete;
~QpackReceiveStream() override = default;
void OnStreamReset(const QuicRstStreamFrame& frame) override;
void OnDataAvailable() override;
QuicStreamOffset NumBytesConsumed() const {
return sequencer()->NumBytesConsumed();
}
private:
QpackStreamReceiver* receiver_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_receive_stream.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_session.h"
namespace quic {
QpackReceiveStream::QpackReceiveStream(PendingStream* pending,
QuicSession* session,
QpackStreamReceiver* receiver)
: QuicStream(pending, session, true), receiver_(receiver) {}
void QpackReceiveStream::OnStreamReset(const QuicRstStreamFrame& ) {
stream_delegate()->OnStreamError(
QUIC_HTTP_CLOSED_CRITICAL_STREAM,
"RESET_STREAM received for QPACK receive stream");
}
void QpackReceiveStream::OnDataAvailable() {
iovec iov;
while (!reading_stopped() && sequencer()->GetReadableRegion(&iov)) {
QUICHE_DCHECK(!sequencer()->IsClosed());
receiver_->Decode(absl::string_view(
reinterpret_cast<const char*>(iov.iov_base), iov.iov_len));
sequencer()->MarkConsumed(iov.iov_len);
}
}
} | #include "quiche/quic/core/qpack/qpack_receive_stream.h"
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_spdy_session_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::StrictMock;
struct TestParams {
TestParams(const ParsedQuicVersion& version, Perspective perspective)
: version(version), perspective(perspective) {
QUIC_LOG(INFO) << "TestParams: version: "
<< ParsedQuicVersionToString(version)
<< ", perspective: " << perspective;
}
TestParams(const TestParams& other)
: version(other.version), perspective(other.perspective) {}
ParsedQuicVersion version;
Perspective perspective;
};
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
ParsedQuicVersionVector all_supported_versions = AllSupportedVersions();
for (const auto& version : AllSupportedVersions()) {
if (!VersionUsesHttp3(version.transport_version)) {
continue;
}
for (Perspective p : {Perspective::IS_SERVER, Perspective::IS_CLIENT}) {
params.emplace_back(version, p);
}
}
return params;
}
class QpackReceiveStreamTest : public QuicTestWithParam<TestParams> {
public:
QpackReceiveStreamTest()
: connection_(new StrictMock<MockQuicConnection>(
&helper_, &alarm_factory_, perspective(),
SupportedVersions(GetParam().version))),
session_(connection_) {
EXPECT_CALL(session_, OnCongestionWindowChange(_)).Times(AnyNumber());
session_.Initialize();
EXPECT_CALL(
static_cast<const MockQuicCryptoStream&>(*session_.GetCryptoStream()),
encryption_established())
.WillRepeatedly(testing::Return(true));
QuicStreamId id = perspective() == Perspective::IS_SERVER
? GetNthClientInitiatedUnidirectionalStreamId(
session_.transport_version(), 3)
: GetNthServerInitiatedUnidirectionalStreamId(
session_.transport_version(), 3);
char type[] = {0x03};
QuicStreamFrame data1(id, false, 0, absl::string_view(type, 1));
session_.OnStreamFrame(data1);
qpack_receive_stream_ =
QuicSpdySessionPeer::GetQpackDecoderReceiveStream(&session_);
}
Perspective perspective() const { return GetParam().perspective; }
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
StrictMock<MockQuicConnection>* connection_;
StrictMock<MockQuicSpdySession> session_;
QpackReceiveStream* qpack_receive_stream_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QpackReceiveStreamTest,
::testing::ValuesIn(GetTestParams()));
TEST_P(QpackReceiveStreamTest, ResetQpackReceiveStream) {
EXPECT_TRUE(qpack_receive_stream_->is_static());
QuicRstStreamFrame rst_frame(kInvalidControlFrameId,
qpack_receive_stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_CLOSED_CRITICAL_STREAM, _, _));
qpack_receive_stream_->OnStreamReset(rst_frame);
}
}
}
} |
291 | cpp | google/quiche | qpack_blocking_manager | quiche/quic/core/qpack/qpack_blocking_manager.cc | quiche/quic/core/qpack/qpack_blocking_manager_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_BLOCKING_MANAGER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_BLOCKING_MANAGER_H_
#include <cstdint>
#include <map>
#include <set>
#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
namespace test {
class QpackBlockingManagerPeer;
}
class QUICHE_EXPORT QpackBlockingManager {
public:
using IndexSet = std::multiset<uint64_t>;
QpackBlockingManager();
bool OnHeaderAcknowledgement(QuicStreamId stream_id);
void OnStreamCancellation(QuicStreamId stream_id);
bool OnInsertCountIncrement(uint64_t increment);
void OnHeaderBlockSent(QuicStreamId stream_id, IndexSet indices);
bool blocking_allowed_on_stream(QuicStreamId stream_id,
uint64_t maximum_blocked_streams) const;
uint64_t smallest_blocking_index() const;
uint64_t known_received_count() const { return known_received_count_; }
static uint64_t RequiredInsertCount(const IndexSet& indices);
private:
friend test::QpackBlockingManagerPeer;
using HeaderBlocksForStream = std::list<IndexSet>;
using HeaderBlocks = absl::flat_hash_map<QuicStreamId, HeaderBlocksForStream>;
void IncreaseReferenceCounts(const IndexSet& indices);
void DecreaseReferenceCounts(const IndexSet& indices);
HeaderBlocks header_blocks_;
std::map<uint64_t, uint64_t> entry_reference_counts_;
uint64_t known_received_count_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_blocking_manager.h"
#include <limits>
#include <utility>
namespace quic {
QpackBlockingManager::QpackBlockingManager() : known_received_count_(0) {}
bool QpackBlockingManager::OnHeaderAcknowledgement(QuicStreamId stream_id) {
auto it = header_blocks_.find(stream_id);
if (it == header_blocks_.end()) {
return false;
}
QUICHE_DCHECK(!it->second.empty());
const IndexSet& indices = it->second.front();
QUICHE_DCHECK(!indices.empty());
const uint64_t required_index_count = RequiredInsertCount(indices);
if (known_received_count_ < required_index_count) {
known_received_count_ = required_index_count;
}
DecreaseReferenceCounts(indices);
it->second.pop_front();
if (it->second.empty()) {
header_blocks_.erase(it);
}
return true;
}
void QpackBlockingManager::OnStreamCancellation(QuicStreamId stream_id) {
auto it = header_blocks_.find(stream_id);
if (it == header_blocks_.end()) {
return;
}
for (const IndexSet& indices : it->second) {
DecreaseReferenceCounts(indices);
}
header_blocks_.erase(it);
}
bool QpackBlockingManager::OnInsertCountIncrement(uint64_t increment) {
if (increment >
std::numeric_limits<uint64_t>::max() - known_received_count_) {
return false;
}
known_received_count_ += increment;
return true;
}
void QpackBlockingManager::OnHeaderBlockSent(QuicStreamId stream_id,
IndexSet indices) {
QUICHE_DCHECK(!indices.empty());
IncreaseReferenceCounts(indices);
header_blocks_[stream_id].push_back(std::move(indices));
}
bool QpackBlockingManager::blocking_allowed_on_stream(
QuicStreamId stream_id, uint64_t maximum_blocked_streams) const {
if (header_blocks_.size() + 1 <= maximum_blocked_streams) {
return true;
}
if (maximum_blocked_streams == 0) {
return false;
}
uint64_t blocked_stream_count = 0;
for (const auto& header_blocks_for_stream : header_blocks_) {
for (const IndexSet& indices : header_blocks_for_stream.second) {
if (RequiredInsertCount(indices) > known_received_count_) {
if (header_blocks_for_stream.first == stream_id) {
return true;
}
++blocked_stream_count;
if (blocked_stream_count + 1 > maximum_blocked_streams) {
return false;
}
break;
}
}
}
return true;
}
uint64_t QpackBlockingManager::smallest_blocking_index() const {
return entry_reference_counts_.empty()
? std::numeric_limits<uint64_t>::max()
: entry_reference_counts_.begin()->first;
}
uint64_t QpackBlockingManager::RequiredInsertCount(const IndexSet& indices) {
return *indices.rbegin() + 1;
}
void QpackBlockingManager::IncreaseReferenceCounts(const IndexSet& indices) {
for (const uint64_t index : indices) {
auto it = entry_reference_counts_.lower_bound(index);
if (it != entry_reference_counts_.end() && it->first == index) {
++it->second;
} else {
entry_reference_counts_.insert(it, {index, 1});
}
}
}
void QpackBlockingManager::DecreaseReferenceCounts(const IndexSet& indices) {
for (const uint64_t index : indices) {
auto it = entry_reference_counts_.find(index);
QUICHE_DCHECK(it != entry_reference_counts_.end());
QUICHE_DCHECK_NE(0u, it->second);
if (it->second == 1) {
entry_reference_counts_.erase(it);
} else {
--it->second;
}
}
}
} | #include "quiche/quic/core/qpack/qpack_blocking_manager.h"
#include <limits>
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
class QpackBlockingManagerPeer {
public:
static bool stream_is_blocked(const QpackBlockingManager* manager,
QuicStreamId stream_id) {
for (const auto& header_blocks_for_stream : manager->header_blocks_) {
if (header_blocks_for_stream.first != stream_id) {
continue;
}
for (const auto& indices : header_blocks_for_stream.second) {
if (QpackBlockingManager::RequiredInsertCount(indices) >
manager->known_received_count_) {
return true;
}
}
}
return false;
}
};
namespace {
class QpackBlockingManagerTest : public QuicTest {
protected:
QpackBlockingManagerTest() = default;
~QpackBlockingManagerTest() override = default;
bool stream_is_blocked(QuicStreamId stream_id) const {
return QpackBlockingManagerPeer::stream_is_blocked(&manager_, stream_id);
}
QpackBlockingManager manager_;
};
TEST_F(QpackBlockingManagerTest, Empty) {
EXPECT_EQ(0u, manager_.known_received_count());
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
EXPECT_FALSE(manager_.OnHeaderAcknowledgement(0));
EXPECT_FALSE(manager_.OnHeaderAcknowledgement(1));
}
TEST_F(QpackBlockingManagerTest, NotBlockedByInsertCountIncrement) {
EXPECT_TRUE(manager_.OnInsertCountIncrement(2));
manager_.OnHeaderBlockSent(0, {1, 0});
EXPECT_FALSE(stream_is_blocked(0));
}
TEST_F(QpackBlockingManagerTest, UnblockedByInsertCountIncrement) {
manager_.OnHeaderBlockSent(0, {1, 0});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_TRUE(manager_.OnInsertCountIncrement(2));
EXPECT_FALSE(stream_is_blocked(0));
}
TEST_F(QpackBlockingManagerTest, NotBlockedByHeaderAcknowledgement) {
manager_.OnHeaderBlockSent(0, {2, 1, 1});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_FALSE(stream_is_blocked(0));
manager_.OnHeaderBlockSent(1, {2, 2});
EXPECT_FALSE(stream_is_blocked(1));
}
TEST_F(QpackBlockingManagerTest, UnblockedByHeaderAcknowledgement) {
manager_.OnHeaderBlockSent(0, {2, 1, 1});
manager_.OnHeaderBlockSent(1, {2, 2});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_TRUE(stream_is_blocked(1));
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_FALSE(stream_is_blocked(0));
EXPECT_FALSE(stream_is_blocked(1));
}
TEST_F(QpackBlockingManagerTest, KnownReceivedCount) {
EXPECT_EQ(0u, manager_.known_received_count());
manager_.OnHeaderBlockSent(0, {0});
EXPECT_EQ(0u, manager_.known_received_count());
manager_.OnHeaderBlockSent(1, {1});
EXPECT_EQ(0u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(1u, manager_.known_received_count());
manager_.OnHeaderBlockSent(2, {5});
EXPECT_EQ(1u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(1));
EXPECT_EQ(2u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnInsertCountIncrement(2));
EXPECT_EQ(4u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(2));
EXPECT_EQ(6u, manager_.known_received_count());
manager_.OnStreamCancellation(0);
EXPECT_EQ(6u, manager_.known_received_count());
manager_.OnHeaderBlockSent(0, {3});
EXPECT_EQ(6u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(6u, manager_.known_received_count());
manager_.OnHeaderBlockSent(1, {5});
EXPECT_EQ(6u, manager_.known_received_count());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(1));
EXPECT_EQ(6u, manager_.known_received_count());
}
TEST_F(QpackBlockingManagerTest, SmallestBlockingIndex) {
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(0, {0});
EXPECT_EQ(0u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(1, {2});
EXPECT_EQ(0u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(2u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(1, {1});
EXPECT_EQ(1u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(1));
EXPECT_EQ(1u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnInsertCountIncrement(2));
EXPECT_EQ(1u, manager_.smallest_blocking_index());
manager_.OnStreamCancellation(1);
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
}
TEST_F(QpackBlockingManagerTest, HeaderAcknowledgementsOnSingleStream) {
EXPECT_EQ(0u, manager_.known_received_count());
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(0, {2, 1, 1});
EXPECT_EQ(0u, manager_.known_received_count());
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(1u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(0, {1, 0});
EXPECT_EQ(0u, manager_.known_received_count());
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(0u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(3u, manager_.known_received_count());
EXPECT_FALSE(stream_is_blocked(0));
EXPECT_EQ(0u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(0, {3});
EXPECT_EQ(3u, manager_.known_received_count());
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(0u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(3u, manager_.known_received_count());
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(3u, manager_.smallest_blocking_index());
EXPECT_TRUE(manager_.OnHeaderAcknowledgement(0));
EXPECT_EQ(4u, manager_.known_received_count());
EXPECT_FALSE(stream_is_blocked(0));
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
EXPECT_FALSE(manager_.OnHeaderAcknowledgement(0));
}
TEST_F(QpackBlockingManagerTest, CancelStream) {
manager_.OnHeaderBlockSent(0, {3});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(3u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(0, {2});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_EQ(2u, manager_.smallest_blocking_index());
manager_.OnHeaderBlockSent(1, {4});
EXPECT_TRUE(stream_is_blocked(0));
EXPECT_TRUE(stream_is_blocked(1));
EXPECT_EQ(2u, manager_.smallest_blocking_index());
manager_.OnStreamCancellation(0);
EXPECT_FALSE(stream_is_blocked(0));
EXPECT_TRUE(stream_is_blocked(1));
EXPECT_EQ(4u, manager_.smallest_blocking_index());
manager_.OnStreamCancellation(1);
EXPECT_FALSE(stream_is_blocked(0));
EXPECT_FALSE(stream_is_blocked(1));
EXPECT_EQ(std::numeric_limits<uint64_t>::max(),
manager_.smallest_blocking_index());
}
TEST_F(QpackBlockingManagerTest, BlockingAllowedOnStream) {
const QuicStreamId kStreamId1 = 1;
const QuicStreamId kStreamId2 = 2;
const QuicStreamId kStreamId3 = 3;
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId1, 0));
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId2, 0));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 1));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 1));
manager_.OnHeaderBlockSent(kStreamId1, {0});
manager_.OnHeaderBlockSent(kStreamId1, {1});
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 1));
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId2, 1));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 2));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 2));
manager_.OnHeaderBlockSent(kStreamId2, {2});
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 2));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 2));
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId3, 2));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId3, 3));
manager_.OnHeaderAcknowledgement(kStreamId1);
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 2));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 2));
manager_.OnHeaderAcknowledgement(kStreamId1);
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId1, 1));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 1));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 2));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 2));
manager_.OnHeaderAcknowledgement(kStreamId2);
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId1, 0));
EXPECT_FALSE(manager_.blocking_allowed_on_stream(kStreamId2, 0));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId1, 1));
EXPECT_TRUE(manager_.blocking_allowed_on_stream(kStreamId2, 1));
}
TEST_F(QpackBlockingManagerTest, InsertCountIncrementOverflow) {
EXPECT_TRUE(manager_.OnInsertCountIncrement(10));
EXPECT_EQ(10u, manager_.known_received_count());
EXPECT_FALSE(manager_.OnInsertCountIncrement(
std::numeric_limits<uint64_t>::max() - 5));
}
}
}
} |
292 | cpp | google/quiche | qpack_required_insert_count | quiche/quic/core/qpack/qpack_required_insert_count.cc | quiche/quic/core/qpack/qpack_required_insert_count_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_REQUIRED_INSERT_COUNT_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_REQUIRED_INSERT_COUNT_H_
#include <cstdint>
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
QUICHE_EXPORT uint64_t QpackEncodeRequiredInsertCount(
uint64_t required_insert_count, uint64_t max_entries);
QUICHE_EXPORT bool QpackDecodeRequiredInsertCount(
uint64_t encoded_required_insert_count, uint64_t max_entries,
uint64_t total_number_of_inserts, uint64_t* required_insert_count);
}
#endif
#include "quiche/quic/core/qpack/qpack_required_insert_count.h"
#include <limits>
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
uint64_t QpackEncodeRequiredInsertCount(uint64_t required_insert_count,
uint64_t max_entries) {
if (required_insert_count == 0) {
return 0;
}
return required_insert_count % (2 * max_entries) + 1;
}
bool QpackDecodeRequiredInsertCount(uint64_t encoded_required_insert_count,
uint64_t max_entries,
uint64_t total_number_of_inserts,
uint64_t* required_insert_count) {
if (encoded_required_insert_count == 0) {
*required_insert_count = 0;
return true;
}
QUICHE_DCHECK_LE(max_entries, std::numeric_limits<uint64_t>::max() / 32);
if (encoded_required_insert_count > 2 * max_entries) {
return false;
}
*required_insert_count = encoded_required_insert_count - 1;
QUICHE_DCHECK_LT(*required_insert_count,
std::numeric_limits<uint64_t>::max() / 16);
uint64_t current_wrapped = total_number_of_inserts % (2 * max_entries);
QUICHE_DCHECK_LT(current_wrapped, std::numeric_limits<uint64_t>::max() / 16);
if (current_wrapped >= *required_insert_count + max_entries) {
*required_insert_count += 2 * max_entries;
} else if (current_wrapped + max_entries < *required_insert_count) {
current_wrapped += 2 * max_entries;
}
if (*required_insert_count >
std::numeric_limits<uint64_t>::max() - total_number_of_inserts) {
return false;
}
*required_insert_count += total_number_of_inserts;
if (current_wrapped >= *required_insert_count) {
return false;
}
*required_insert_count -= current_wrapped;
return true;
}
} | #include "quiche/quic/core/qpack/qpack_required_insert_count.h"
#include "absl/base/macros.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
TEST(QpackRequiredInsertCountTest, QpackEncodeRequiredInsertCount) {
EXPECT_EQ(0u, QpackEncodeRequiredInsertCount(0, 0));
EXPECT_EQ(0u, QpackEncodeRequiredInsertCount(0, 8));
EXPECT_EQ(0u, QpackEncodeRequiredInsertCount(0, 1024));
EXPECT_EQ(2u, QpackEncodeRequiredInsertCount(1, 8));
EXPECT_EQ(5u, QpackEncodeRequiredInsertCount(20, 8));
EXPECT_EQ(7u, QpackEncodeRequiredInsertCount(106, 10));
}
struct {
uint64_t required_insert_count;
uint64_t max_entries;
uint64_t total_number_of_inserts;
} kTestData[] = {
{0, 0, 0},
{0, 100, 0},
{0, 100, 500},
{15, 100, 25},
{20, 100, 10},
{90, 100, 110},
{234, 100, 180},
{5678, 100, 5701},
{401, 100, 500},
{600, 100, 500}};
TEST(QpackRequiredInsertCountTest, QpackDecodeRequiredInsertCount) {
for (size_t i = 0; i < ABSL_ARRAYSIZE(kTestData); ++i) {
const uint64_t required_insert_count = kTestData[i].required_insert_count;
const uint64_t max_entries = kTestData[i].max_entries;
const uint64_t total_number_of_inserts =
kTestData[i].total_number_of_inserts;
if (required_insert_count != 0) {
ASSERT_LT(0u, max_entries) << i;
ASSERT_LT(total_number_of_inserts, required_insert_count + max_entries)
<< i;
ASSERT_LE(required_insert_count, total_number_of_inserts + max_entries)
<< i;
}
uint64_t encoded_required_insert_count =
QpackEncodeRequiredInsertCount(required_insert_count, max_entries);
uint64_t decoded_required_insert_count = required_insert_count + 1;
EXPECT_TRUE(QpackDecodeRequiredInsertCount(
encoded_required_insert_count, max_entries, total_number_of_inserts,
&decoded_required_insert_count))
<< i;
EXPECT_EQ(decoded_required_insert_count, required_insert_count) << i;
}
}
struct {
uint64_t encoded_required_insert_count;
uint64_t max_entries;
uint64_t total_number_of_inserts;
} kInvalidTestData[] = {
{1, 0, 0},
{9, 0, 0},
{1, 10, 2},
{18, 10, 2},
{400, 100, 500},
{601, 100, 500}};
TEST(QpackRequiredInsertCountTest, DecodeRequiredInsertCountError) {
for (size_t i = 0; i < ABSL_ARRAYSIZE(kInvalidTestData); ++i) {
uint64_t decoded_required_insert_count = 0;
EXPECT_FALSE(QpackDecodeRequiredInsertCount(
kInvalidTestData[i].encoded_required_insert_count,
kInvalidTestData[i].max_entries,
kInvalidTestData[i].total_number_of_inserts,
&decoded_required_insert_count))
<< i;
}
}
}
}
} |
293 | cpp | google/quiche | qpack_header_table | quiche/quic/core/qpack/qpack_header_table.cc | quiche/quic/core/qpack/qpack_header_table_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_HEADER_TABLE_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_HEADER_TABLE_H_
#include <cstdint>
#include <deque>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/quiche_circular_deque.h"
#include "quiche/spdy/core/hpack/hpack_entry.h"
#include "quiche/spdy/core/hpack/hpack_header_table.h"
namespace quic {
using QpackEntry = spdy::HpackEntry;
using QpackLookupEntry = spdy::HpackLookupEntry;
constexpr size_t kQpackEntrySizeOverhead = spdy::kHpackEntrySizeOverhead;
using QpackEncoderDynamicTable =
quiche::QuicheCircularDeque<std::unique_ptr<QpackEntry>>;
using QpackDecoderDynamicTable = quiche::QuicheCircularDeque<QpackEntry>;
template <typename DynamicEntryTable>
class QUICHE_EXPORT QpackHeaderTableBase {
public:
QpackHeaderTableBase();
QpackHeaderTableBase(const QpackHeaderTableBase&) = delete;
QpackHeaderTableBase& operator=(const QpackHeaderTableBase&) = delete;
virtual ~QpackHeaderTableBase() = default;
bool EntryFitsDynamicTableCapacity(absl::string_view name,
absl::string_view value) const;
virtual uint64_t InsertEntry(absl::string_view name, absl::string_view value);
bool SetDynamicTableCapacity(uint64_t capacity);
bool SetMaximumDynamicTableCapacity(uint64_t maximum_dynamic_table_capacity);
uint64_t dynamic_table_size() const { return dynamic_table_size_; }
uint64_t dynamic_table_capacity() const { return dynamic_table_capacity_; }
uint64_t maximum_dynamic_table_capacity() const {
return maximum_dynamic_table_capacity_;
}
uint64_t max_entries() const { return max_entries_; }
uint64_t inserted_entry_count() const {
return dynamic_entries_.size() + dropped_entry_count_;
}
uint64_t dropped_entry_count() const { return dropped_entry_count_; }
void set_dynamic_table_entry_referenced() {
dynamic_table_entry_referenced_ = true;
}
bool dynamic_table_entry_referenced() const {
return dynamic_table_entry_referenced_;
}
protected:
virtual void RemoveEntryFromEnd();
const DynamicEntryTable& dynamic_entries() const { return dynamic_entries_; }
private:
void EvictDownToCapacity(uint64_t capacity);
DynamicEntryTable dynamic_entries_;
uint64_t dynamic_table_size_;
uint64_t dynamic_table_capacity_;
uint64_t maximum_dynamic_table_capacity_;
uint64_t max_entries_;
uint64_t dropped_entry_count_;
bool dynamic_table_entry_referenced_;
};
template <typename DynamicEntryTable>
QpackHeaderTableBase<DynamicEntryTable>::QpackHeaderTableBase()
: dynamic_table_size_(0),
dynamic_table_capacity_(0),
maximum_dynamic_table_capacity_(0),
max_entries_(0),
dropped_entry_count_(0),
dynamic_table_entry_referenced_(false) {}
template <typename DynamicEntryTable>
bool QpackHeaderTableBase<DynamicEntryTable>::EntryFitsDynamicTableCapacity(
absl::string_view name, absl::string_view value) const {
return QpackEntry::Size(name, value) <= dynamic_table_capacity_;
}
namespace internal {
QUICHE_EXPORT inline size_t GetSize(const QpackEntry& entry) {
return entry.Size();
}
QUICHE_EXPORT inline size_t GetSize(const std::unique_ptr<QpackEntry>& entry) {
return entry->Size();
}
QUICHE_EXPORT inline std::unique_ptr<QpackEntry> NewEntry(
std::string name, std::string value, QpackEncoderDynamicTable& ) {
return std::make_unique<QpackEntry>(std::move(name), std::move(value));
}
QUICHE_EXPORT inline QpackEntry NewEntry(std::string name, std::string value,
QpackDecoderDynamicTable& ) {
return QpackEntry{std::move(name), std::move(value)};
}
}
template <typename DynamicEntryTable>
uint64_t QpackHeaderTableBase<DynamicEntryTable>::InsertEntry(
absl::string_view name, absl::string_view value) {
QUICHE_DCHECK(EntryFitsDynamicTableCapacity(name, value));
const uint64_t index = dropped_entry_count_ + dynamic_entries_.size();
auto new_entry = internal::NewEntry(std::string(name), std::string(value),
dynamic_entries_);
const size_t entry_size = internal::GetSize(new_entry);
EvictDownToCapacity(dynamic_table_capacity_ - entry_size);
dynamic_table_size_ += entry_size;
dynamic_entries_.push_back(std::move(new_entry));
return index;
}
template <typename DynamicEntryTable>
bool QpackHeaderTableBase<DynamicEntryTable>::SetDynamicTableCapacity(
uint64_t capacity) {
if (capacity > maximum_dynamic_table_capacity_) {
return false;
}
dynamic_table_capacity_ = capacity;
EvictDownToCapacity(capacity);
QUICHE_DCHECK_LE(dynamic_table_size_, dynamic_table_capacity_);
return true;
}
template <typename DynamicEntryTable>
bool QpackHeaderTableBase<DynamicEntryTable>::SetMaximumDynamicTableCapacity(
uint64_t maximum_dynamic_table_capacity) {
if (maximum_dynamic_table_capacity_ == 0) {
maximum_dynamic_table_capacity_ = maximum_dynamic_table_capacity;
max_entries_ = maximum_dynamic_table_capacity / 32;
return true;
}
return maximum_dynamic_table_capacity == maximum_dynamic_table_capacity_;
}
template <typename DynamicEntryTable>
void QpackHeaderTableBase<DynamicEntryTable>::RemoveEntryFromEnd() {
const uint64_t entry_size = internal::GetSize(dynamic_entries_.front());
QUICHE_DCHECK_GE(dynamic_table_size_, entry_size);
dynamic_table_size_ -= entry_size;
dynamic_entries_.pop_front();
++dropped_entry_count_;
}
template <typename DynamicEntryTable>
void QpackHeaderTableBase<DynamicEntryTable>::EvictDownToCapacity(
uint64_t capacity) {
while (dynamic_table_size_ > capacity) {
QUICHE_DCHECK(!dynamic_entries_.empty());
RemoveEntryFromEnd();
}
}
class QUICHE_EXPORT QpackEncoderHeaderTable
: public QpackHeaderTableBase<QpackEncoderDynamicTable> {
public:
enum class MatchType {
kNameAndValue,
kName,
kNoMatch
};
struct MatchResult {
MatchType match_type;
bool is_static;
uint64_t index;
};
QpackEncoderHeaderTable();
~QpackEncoderHeaderTable() override = default;
uint64_t InsertEntry(absl::string_view name,
absl::string_view value) override;
MatchResult FindHeaderField(absl::string_view name,
absl::string_view value) const;
MatchResult FindHeaderName(absl::string_view name) const;
uint64_t MaxInsertSizeWithoutEvictingGivenEntry(uint64_t index) const;
uint64_t draining_index(float draining_fraction) const;
protected:
void RemoveEntryFromEnd() override;
private:
using NameValueToEntryMap = spdy::HpackHeaderTable::NameValueToEntryMap;
using NameToEntryMap = spdy::HpackHeaderTable::NameToEntryMap;
const NameValueToEntryMap& static_index_;
const NameToEntryMap& static_name_index_;
NameValueToEntryMap dynamic_index_;
NameToEntryMap dynamic_name_index_;
};
class QUICHE_EXPORT QpackDecoderHeaderTable
: public QpackHeaderTableBase<QpackDecoderDynamicTable> {
public:
class QUICHE_EXPORT Observer {
public:
virtual ~Observer() = default;
virtual void OnInsertCountReachedThreshold() = 0;
virtual void Cancel() = 0;
};
QpackDecoderHeaderTable();
~QpackDecoderHeaderTable() override;
uint64_t InsertEntry(absl::string_view name,
absl::string_view value) override;
const QpackEntry* LookupEntry(bool is_static, uint64_t index) const;
void RegisterObserver(uint64_t required_insert_count, Observer* observer);
void UnregisterObserver(uint64_t required_insert_count, Observer* observer);
private:
using StaticEntryTable = spdy::HpackHeaderTable::StaticEntryTable;
const StaticEntryTable& static_entries_;
std::multimap<uint64_t, Observer*> observers_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_header_table.h"
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_static_table.h"
#include "quiche/quic/platform/api/quic_logging.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
QpackEncoderHeaderTable::QpackEncoderHeaderTable()
: static_index_(ObtainQpackStaticTable().GetStaticIndex()),
static_name_index_(ObtainQpackStaticTable().GetStaticNameIndex()) {}
uint64_t QpackEncoderHeaderTable::InsertEntry(absl::string_view name,
absl::string_view value) {
const uint64_t index =
QpackHeaderTableBase<QpackEncoderDynamicTable>::InsertEntry(name, value);
name = dynamic_entries().back()->name();
value = dynamic_entries().back()->value();
auto index_result = dynamic_index_.insert(
std::make_pair(QpackLookupEntry{name, value}, index));
if (!index_result.second) {
QUICHE_DCHECK_GT(index, index_result.first->second);
dynamic_index_.erase(index_result.first);
auto result = dynamic_index_.insert(
std::make_pair(QpackLookupEntry{name, value}, index));
QUICHE_CHECK(result.second);
}
auto name_result = dynamic_name_index_.insert({name, index});
if (!name_result.second) {
QUICHE_DCHECK_GT(index, name_result.first->second);
dynamic_name_index_.erase(name_result.first);
auto result = dynamic_name_index_.insert({name, index});
QUICHE_CHECK(result.second);
}
return index;
}
QpackEncoderHeaderTable::MatchResult QpackEncoderHeaderTable::FindHeaderField(
absl::string_view name, absl::string_view value) const {
QpackLookupEntry query{name, value};
auto index_it = static_index_.find(query);
if (index_it != static_index_.end()) {
return { MatchType::kNameAndValue,
true,
index_it->second};
}
index_it = dynamic_index_.find(query);
if (index_it != dynamic_index_.end()) {
return { MatchType::kNameAndValue,
false,
index_it->second};
}
return FindHeaderName(name);
}
QpackEncoderHeaderTable::MatchResult QpackEncoderHeaderTable::FindHeaderName(
absl::string_view name) const {
auto name_index_it = static_name_index_.find(name);
if (name_index_it != static_name_index_.end()) {
return { MatchType::kName,
true,
name_index_it->second};
}
name_index_it = dynamic_name_index_.find(name);
if (name_index_it != dynamic_name_index_.end()) {
return { MatchType::kName,
false,
name_index_it->second};
}
return { MatchType::kNoMatch,
false,
0};
}
uint64_t QpackEncoderHeaderTable::MaxInsertSizeWithoutEvictingGivenEntry(
uint64_t index) const {
QUICHE_DCHECK_LE(dropped_entry_count(), index);
if (index > inserted_entry_count()) {
return dynamic_table_capacity();
}
uint64_t max_insert_size = dynamic_table_capacity() - dynamic_table_size();
uint64_t entry_index = dropped_entry_count();
for (const auto& entry : dynamic_entries()) {
if (entry_index >= index) {
break;
}
++entry_index;
max_insert_size += entry->Size();
}
return max_insert_size;
}
uint64_t QpackEncoderHeaderTable::draining_index(
float draining_fraction) const {
QUICHE_DCHECK_LE(0.0, draining_fraction);
QUICHE_DCHECK_LE(draining_fraction, 1.0);
const uint64_t required_space = draining_fraction * dynamic_table_capacity();
uint64_t space_above_draining_index =
dynamic_table_capacity() - dynamic_table_size();
if (dynamic_entries().empty() ||
space_above_draining_index >= required_space) {
return dropped_entry_count();
}
auto it = dynamic_entries().begin();
uint64_t entry_index = dropped_entry_count();
while (space_above_draining_index < required_space) {
space_above_draining_index += (*it)->Size();
++it;
++entry_index;
if (it == dynamic_entries().end()) {
return inserted_entry_count();
}
}
return entry_index;
}
void QpackEncoderHeaderTable::RemoveEntryFromEnd() {
const QpackEntry* const entry = dynamic_entries().front().get();
const uint64_t index = dropped_entry_count();
auto index_it = dynamic_index_.find({entry->name(), entry->value()});
if (index_it != dynamic_index_.end() && index_it->second == index) {
dynamic_index_.erase(index_it);
}
auto name_it = dynamic_name_index_.find(entry->name());
if (name_it != dynamic_name_index_.end() && name_it->second == index) {
dynamic_name_index_.erase(name_it);
}
QpackHeaderTableBase<QpackEncoderDynamicTable>::RemoveEntryFromEnd();
}
QpackDecoderHeaderTable::QpackDecoderHeaderTable()
: static_entries_(ObtainQpackStaticTable().GetStaticEntries()) {}
QpackDecoderHeaderTable::~QpackDecoderHeaderTable() {
for (auto& entry : observers_) {
entry.second->Cancel();
}
}
uint64_t QpackDecoderHeaderTable::InsertEntry(absl::string_view name,
absl::string_view value) {
const uint64_t index =
QpackHeaderTableBase<QpackDecoderDynamicTable>::InsertEntry(name, value);
while (!observers_.empty()) {
auto it = observers_.begin();
if (it->first > inserted_entry_count()) {
break;
}
Observer* observer = it->second;
observers_.erase(it);
observer->OnInsertCountReachedThreshold();
}
return index;
}
const QpackEntry* QpackDecoderHeaderTable::LookupEntry(bool is_static,
uint64_t index) const {
if (is_static) {
if (index >= static_entries_.size()) {
return nullptr;
}
return &static_entries_[index];
}
if (index < dropped_entry_count()) {
return nullptr;
}
index -= dropped_entry_count();
if (index >= dynamic_entries().size()) {
return nullptr;
}
return &dynamic_entries()[index];
}
void QpackDecoderHeaderTable::RegisterObserver(uint64_t required_insert_count,
Observer* observer) {
QUICHE_DCHECK_GT(required_insert_count, 0u);
observers_.insert({required_insert_count, observer});
}
void QpackDecoderHeaderTable::UnregisterObserver(uint64_t required_insert_count,
Observer* observer) {
auto it = observers_.lower_bound(required_insert_count);
while (it != observers_.end() && it->first == required_insert_count) {
if (it->second == observer) {
observers_.erase(it);
return;
}
++it;
}
QUICHE_NOTREACHED();
}
} | #include "quiche/quic/core/qpack/qpack_header_table.h"
#include <memory>
#include <tuple>
#include <utility>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_static_table.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/spdy/core/hpack/hpack_entry.h"
namespace quic {
namespace test {
namespace {
using ::testing::_;
using ::testing::FieldsAre;
using ::testing::Mock;
using ::testing::StrictMock;
constexpr uint64_t kMaximumDynamicTableCapacityForTesting = 1024 * 1024;
constexpr bool kStaticEntry = true;
constexpr bool kDynamicEntry = false;
template <typename T>
class QpackHeaderTableTest : public QuicTest {
protected:
~QpackHeaderTableTest() override = default;
void SetUp() override {
ASSERT_TRUE(table_.SetMaximumDynamicTableCapacity(
kMaximumDynamicTableCapacityForTesting));
ASSERT_TRUE(
table_.SetDynamicTableCapacity(kMaximumDynamicTableCapacityForTesting));
}
bool EntryFitsDynamicTableCapacity(absl::string_view name,
absl::string_view value) const {
return table_.EntryFitsDynamicTableCapacity(name, value);
}
void InsertEntry(absl::string_view name, absl::string_view value) {
table_.InsertEntry(name, value);
}
bool SetDynamicTableCapacity(uint64_t capacity) {
return table_.SetDynamicTableCapacity(capacity);
}
uint64_t max_entries() const { return table_.max_entries(); }
uint64_t inserted_entry_count() const {
return table_.inserted_entry_count();
}
uint64_t dropped_entry_count() const { return table_.dropped_entry_count(); }
T table_;
};
using MyTypes =
::testing::Types<QpackEncoderHeaderTable, QpackDecoderHeaderTable>;
TYPED_TEST_SUITE(QpackHeaderTableTest, MyTypes);
TYPED_TEST(QpackHeaderTableTest, MaxEntries) {
TypeParam table1;
table1.SetMaximumDynamicTableCapacity(1024);
EXPECT_EQ(32u, table1.max_entries());
TypeParam table2;
table2.SetMaximumDynamicTableCapacity(500);
EXPECT_EQ(15u, table2.max_entries());
}
TYPED_TEST(QpackHeaderTableTest, SetDynamicTableCapacity) {
EXPECT_TRUE(this->SetDynamicTableCapacity(1024));
EXPECT_EQ(32u * 1024, this->max_entries());
EXPECT_TRUE(this->SetDynamicTableCapacity(500));
EXPECT_EQ(32u * 1024, this->max_entries());
EXPECT_FALSE(this->SetDynamicTableCapacity(
2 * kMaximumDynamicTableCapacityForTesting));
}
TYPED_TEST(QpackHeaderTableTest, EntryFitsDynamicTableCapacity) {
EXPECT_TRUE(this->SetDynamicTableCapacity(39));
EXPECT_TRUE(this->EntryFitsDynamicTableCapacity("foo", "bar"));
EXPECT_TRUE(this->EntryFitsDynamicTableCapacity("foo", "bar2"));
EXPECT_FALSE(this->EntryFitsDynamicTableCapacity("foo", "bar12"));
}
class QpackEncoderHeaderTableTest
: public QpackHeaderTableTest<QpackEncoderHeaderTable> {
protected:
enum MatchType { kNameAndValue, kName, kNoMatch };
~QpackEncoderHeaderTableTest() override = default;
std::tuple<MatchType, bool, uint64_t> FindHeaderField(
absl::string_view name, absl::string_view value) const {
QpackEncoderHeaderTable::MatchResult match_result =
table_.FindHeaderField(name, value);
return {static_cast<MatchType>(match_result.match_type),
match_result.is_static, match_result.index};
}
std::tuple<MatchType, bool, uint64_t> FindHeaderName(
absl::string_view name) const {
QpackEncoderHeaderTable::MatchResult match_result =
table_.FindHeaderName(name);
return {static_cast<MatchType>(match_result.match_type),
match_result.is_static, match_result.index};
}
uint64_t MaxInsertSizeWithoutEvictingGivenEntry(uint64_t index) const {
return table_.MaxInsertSizeWithoutEvictingGivenEntry(index);
}
uint64_t draining_index(float draining_fraction) const {
return table_.draining_index(draining_fraction);
}
};
TEST_F(QpackEncoderHeaderTableTest, FindStaticHeaderField) {
EXPECT_THAT(FindHeaderField(":method", "GET"),
FieldsAre(kNameAndValue, kStaticEntry, 17u));
EXPECT_THAT(FindHeaderField(":method", "POST"),
FieldsAre(kNameAndValue, kStaticEntry, 20u));
EXPECT_THAT(FindHeaderField(":method", "TRACE"),
FieldsAre(kName, kStaticEntry, 15u));
EXPECT_THAT(FindHeaderName(":method"), FieldsAre(kName, kStaticEntry, 15u));
EXPECT_THAT(FindHeaderField("accept-encoding", "gzip, deflate, br"),
FieldsAre(kNameAndValue, kStaticEntry, 31u));
EXPECT_THAT(FindHeaderField("accept-encoding", "compress"),
FieldsAre(kName, kStaticEntry, 31u));
EXPECT_THAT(FindHeaderField("accept-encoding", ""),
FieldsAre(kName, kStaticEntry, 31u));
EXPECT_THAT(FindHeaderName("accept-encoding"),
FieldsAre(kName, kStaticEntry, 31u));
EXPECT_THAT(FindHeaderField("location", ""),
FieldsAre(kNameAndValue, kStaticEntry, 12u));
EXPECT_THAT(FindHeaderField("location", "foo"),
FieldsAre(kName, kStaticEntry, 12u));
EXPECT_THAT(FindHeaderName("location"), FieldsAre(kName, kStaticEntry, 12u));
EXPECT_THAT(FindHeaderField("foo", ""), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderField("foo", "bar"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderName("foo"), FieldsAre(kNoMatch, _, _));
}
TEST_F(QpackEncoderHeaderTableTest, FindDynamicHeaderField) {
EXPECT_THAT(FindHeaderField("foo", "bar"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderField("foo", "baz"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderName("foo"), FieldsAre(kNoMatch, _, _));
InsertEntry("foo", "bar");
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 0u));
EXPECT_THAT(FindHeaderField("foo", "baz"),
FieldsAre(kName, kDynamicEntry, 0u));
EXPECT_THAT(FindHeaderName("foo"), FieldsAre(kName, kDynamicEntry, 0u));
InsertEntry("foo", "bar");
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
EXPECT_THAT(FindHeaderField("foo", "baz"),
FieldsAre(kName, kDynamicEntry, 1u));
EXPECT_THAT(FindHeaderName("foo"), FieldsAre(kName, kDynamicEntry, 1u));
}
TEST_F(QpackEncoderHeaderTableTest, FindHeaderFieldPrefersStaticTable) {
InsertEntry(":method", "GET");
EXPECT_THAT(FindHeaderField(":method", "GET"),
FieldsAre(kNameAndValue, kStaticEntry, 17u));
EXPECT_THAT(FindHeaderField(":method", "TRACE"),
FieldsAre(kName, kStaticEntry, 15u));
EXPECT_THAT(FindHeaderName(":method"), FieldsAre(kName, kStaticEntry, 15u));
InsertEntry(":method", "TRACE");
EXPECT_THAT(FindHeaderField(":method", "TRACE"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
}
TEST_F(QpackEncoderHeaderTableTest, EvictByInsertion) {
EXPECT_TRUE(SetDynamicTableCapacity(40));
InsertEntry("foo", "bar");
EXPECT_EQ(1u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 0u));
InsertEntry("baz", "qux");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderField("baz", "qux"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
}
TEST_F(QpackEncoderHeaderTableTest, EvictByUpdateTableSize) {
InsertEntry("foo", "bar");
InsertEntry("baz", "qux");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 0u));
EXPECT_THAT(FindHeaderField("baz", "qux"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
EXPECT_TRUE(SetDynamicTableCapacity(40));
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderField("baz", "qux"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
EXPECT_TRUE(SetDynamicTableCapacity(20));
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(2u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"), FieldsAre(kNoMatch, _, _));
EXPECT_THAT(FindHeaderField("baz", "qux"), FieldsAre(kNoMatch, _, _));
}
TEST_F(QpackEncoderHeaderTableTest, EvictOldestOfIdentical) {
EXPECT_TRUE(SetDynamicTableCapacity(80));
InsertEntry("foo", "bar");
InsertEntry("foo", "bar");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
InsertEntry("baz", "qux");
EXPECT_EQ(3u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "bar"),
FieldsAre(kNameAndValue, kDynamicEntry, 1u));
EXPECT_THAT(FindHeaderField("baz", "qux"),
FieldsAre(kNameAndValue, kDynamicEntry, 2u));
}
TEST_F(QpackEncoderHeaderTableTest, EvictOldestOfSameName) {
EXPECT_TRUE(SetDynamicTableCapacity(80));
InsertEntry("foo", "bar");
InsertEntry("foo", "baz");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "foo"),
FieldsAre(kName, kDynamicEntry, 1u));
InsertEntry("baz", "qux");
EXPECT_EQ(3u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
EXPECT_THAT(FindHeaderField("foo", "foo"),
FieldsAre(kName, kDynamicEntry, 1u));
EXPECT_THAT(FindHeaderField("baz", "qux"),
FieldsAre(kNameAndValue, kDynamicEntry, 2u));
}
TEST_F(QpackEncoderHeaderTableTest, MaxInsertSizeWithoutEvictingGivenEntry) {
const uint64_t dynamic_table_capacity = 100;
EXPECT_TRUE(SetDynamicTableCapacity(dynamic_table_capacity));
EXPECT_EQ(dynamic_table_capacity, MaxInsertSizeWithoutEvictingGivenEntry(0));
const uint64_t entry_size1 = QpackEntry::Size("foo", "bar");
InsertEntry("foo", "bar");
EXPECT_EQ(dynamic_table_capacity - entry_size1,
MaxInsertSizeWithoutEvictingGivenEntry(0));
EXPECT_EQ(dynamic_table_capacity, MaxInsertSizeWithoutEvictingGivenEntry(1));
const uint64_t entry_size2 = QpackEntry::Size("baz", "foobar");
InsertEntry("baz", "foobar");
EXPECT_EQ(dynamic_table_capacity, MaxInsertSizeWithoutEvictingGivenEntry(2));
EXPECT_EQ(dynamic_table_capacity - entry_size2,
MaxInsertSizeWithoutEvictingGivenEntry(1));
EXPECT_EQ(dynamic_table_capacity - entry_size2 - entry_size1,
MaxInsertSizeWithoutEvictingGivenEntry(0));
const uint64_t entry_size3 = QpackEntry::Size("last", "entry");
InsertEntry("last", "entry");
EXPECT_EQ(1u, dropped_entry_count());
EXPECT_EQ(dynamic_table_capacity, MaxInsertSizeWithoutEvictingGivenEntry(3));
EXPECT_EQ(dynamic_table_capacity - entry_size3,
MaxInsertSizeWithoutEvictingGivenEntry(2));
EXPECT_EQ(dynamic_table_capacity - entry_size3 - entry_size2,
MaxInsertSizeWithoutEvictingGivenEntry(1));
}
TEST_F(QpackEncoderHeaderTableTest, DrainingIndex) {
EXPECT_TRUE(SetDynamicTableCapacity(4 * QpackEntry::Size("foo", "bar")));
EXPECT_EQ(0u, draining_index(0.0));
EXPECT_EQ(0u, draining_index(1.0));
InsertEntry("foo", "bar");
EXPECT_EQ(0u, draining_index(0.0));
EXPECT_EQ(1u, draining_index(1.0));
InsertEntry("foo", "bar");
EXPECT_EQ(0u, draining_index(0.0));
EXPECT_EQ(0u, draining_index(0.5));
EXPECT_EQ(2u, draining_index(1.0));
InsertEntry("foo", "bar");
InsertEntry("foo", "bar");
EXPECT_EQ(0u, draining_index(0.0));
EXPECT_EQ(2u, draining_index(0.5));
EXPECT_EQ(4u, draining_index(1.0));
}
class MockObserver : public QpackDecoderHeaderTable::Observer {
public:
~MockObserver() override = default;
MOCK_METHOD(void, OnInsertCountReachedThreshold, (), (override));
MOCK_METHOD(void, Cancel, (), (override));
};
class QpackDecoderHeaderTableTest
: public QpackHeaderTableTest<QpackDecoderHeaderTable> {
protected:
~QpackDecoderHeaderTableTest() override = default;
void ExpectEntryAtIndex(bool is_static, uint64_t index,
absl::string_view expected_name,
absl::string_view expected_value) const {
const auto* entry = table_.LookupEntry(is_static, index);
ASSERT_TRUE(entry);
EXPECT_EQ(expected_name, entry->name());
EXPECT_EQ(expected_value, entry->value());
}
void ExpectNoEntryAtIndex(bool is_static, uint64_t index) const {
EXPECT_FALSE(table_.LookupEntry(is_static, index));
}
void RegisterObserver(uint64_t required_insert_count,
QpackDecoderHeaderTable::Observer* observer) {
table_.RegisterObserver(required_insert_count, observer);
}
void UnregisterObserver(uint64_t required_insert_count,
QpackDecoderHeaderTable::Observer* observer) {
table_.UnregisterObserver(required_insert_count, observer);
}
};
TEST_F(QpackDecoderHeaderTableTest, LookupStaticEntry) {
ExpectEntryAtIndex(kStaticEntry, 0, ":authority", "");
ExpectEntryAtIndex(kStaticEntry, 1, ":path", "/");
ExpectEntryAtIndex(kStaticEntry, 98, "x-frame-options", "sameorigin");
ASSERT_EQ(99u, QpackStaticTableVector().size());
ExpectNoEntryAtIndex(kStaticEntry, 99);
}
TEST_F(QpackDecoderHeaderTableTest, InsertAndLookupDynamicEntry) {
ExpectNoEntryAtIndex(kDynamicEntry, 0);
ExpectNoEntryAtIndex(kDynamicEntry, 1);
ExpectNoEntryAtIndex(kDynamicEntry, 2);
ExpectNoEntryAtIndex(kDynamicEntry, 3);
InsertEntry("foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 0, "foo", "bar");
ExpectNoEntryAtIndex(kDynamicEntry, 1);
ExpectNoEntryAtIndex(kDynamicEntry, 2);
ExpectNoEntryAtIndex(kDynamicEntry, 3);
InsertEntry("baz", "bing");
ExpectEntryAtIndex(kDynamicEntry, 0, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 1, "baz", "bing");
ExpectNoEntryAtIndex(kDynamicEntry, 2);
ExpectNoEntryAtIndex(kDynamicEntry, 3);
InsertEntry("baz", "bing");
ExpectEntryAtIndex(kDynamicEntry, 0, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 1, "baz", "bing");
ExpectEntryAtIndex(kDynamicEntry, 2, "baz", "bing");
ExpectNoEntryAtIndex(kDynamicEntry, 3);
}
TEST_F(QpackDecoderHeaderTableTest, EvictByInsertion) {
EXPECT_TRUE(SetDynamicTableCapacity(40));
InsertEntry("foo", "bar");
EXPECT_EQ(1u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
ExpectEntryAtIndex(kDynamicEntry, 0u, "foo", "bar");
InsertEntry("baz", "qux");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectEntryAtIndex(kDynamicEntry, 1u, "baz", "qux");
}
TEST_F(QpackDecoderHeaderTableTest, EvictByUpdateTableSize) {
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectNoEntryAtIndex(kDynamicEntry, 1u);
InsertEntry("foo", "bar");
InsertEntry("baz", "qux");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
ExpectEntryAtIndex(kDynamicEntry, 0u, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 1u, "baz", "qux");
EXPECT_TRUE(SetDynamicTableCapacity(40));
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectEntryAtIndex(kDynamicEntry, 1u, "baz", "qux");
EXPECT_TRUE(SetDynamicTableCapacity(20));
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(2u, dropped_entry_count());
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectNoEntryAtIndex(kDynamicEntry, 1u);
}
TEST_F(QpackDecoderHeaderTableTest, EvictOldestOfIdentical) {
EXPECT_TRUE(SetDynamicTableCapacity(80));
InsertEntry("foo", "bar");
InsertEntry("foo", "bar");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
ExpectEntryAtIndex(kDynamicEntry, 0u, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 1u, "foo", "bar");
ExpectNoEntryAtIndex(kDynamicEntry, 2u);
InsertEntry("baz", "qux");
EXPECT_EQ(3u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectEntryAtIndex(kDynamicEntry, 1u, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 2u, "baz", "qux");
}
TEST_F(QpackDecoderHeaderTableTest, EvictOldestOfSameName) {
EXPECT_TRUE(SetDynamicTableCapacity(80));
InsertEntry("foo", "bar");
InsertEntry("foo", "baz");
EXPECT_EQ(2u, inserted_entry_count());
EXPECT_EQ(0u, dropped_entry_count());
ExpectEntryAtIndex(kDynamicEntry, 0u, "foo", "bar");
ExpectEntryAtIndex(kDynamicEntry, 1u, "foo", "baz");
ExpectNoEntryAtIndex(kDynamicEntry, 2u);
InsertEntry("baz", "qux");
EXPECT_EQ(3u, inserted_entry_count());
EXPECT_EQ(1u, dropped_entry_count());
ExpectNoEntryAtIndex(kDynamicEntry, 0u);
ExpectEntryAtIndex(kDynamicEntry, 1u, "foo", "baz");
ExpectEntryAtIndex(kDynamicEntry, 2u, "baz", "qux");
}
TEST_F(QpackDecoderHeaderTableTest, RegisterObserver) {
StrictMock<MockObserver> observer1;
RegisterObserver(1, &observer1);
EXPECT_CALL(observer1, OnInsertCountReachedThreshold);
InsertEntry("foo", "bar");
EXPECT_EQ(1u, inserted_entry_count());
Mock::VerifyAndClearExpectations(&observer1);
StrictMock<MockObserver> observer2;
StrictMock<MockObserver> observer3;
RegisterObserver(3, &observer3);
RegisterObserver(2, &observer2);
EXPECT_CALL(observer2, OnInsertCountReachedThreshold);
InsertEntry("foo", "bar");
EXPECT_EQ(2u, inserted_entry_count());
Mock::VerifyAndClearExpectations(&observer3);
EXPECT_CALL(observer3, OnInsertCountReachedThreshold);
InsertEntry("foo", "bar");
EXPECT_EQ(3u, inserted_entry_count());
Mock::VerifyAndClearExpectations(&observer2);
StrictMock<MockObserver> observer4;
StrictMock<MockObserver> observer5;
RegisterObserver(4, &observer4);
RegisterObserver(4, &observer5);
EXPECT_CALL(observer4, OnInsertCountReachedThreshold);
EXPECT_CALL(observer5, OnInsertCountReachedThreshold);
InsertEntry("foo", "bar");
EXPECT_EQ(4u, inserted_entry_count());
Mock::VerifyAndClearExpectations(&observer4);
Mock::VerifyAndClearExpectations(&observer5);
}
TEST_F(QpackDecoderHeaderTableTest, UnregisterObserver) {
StrictMock<MockObserver> observer1;
StrictMock<MockObserver> observer2;
StrictMock<MockObserver> observer3;
StrictMock<MockObserver> observer4;
RegisterObserver(1, &observer1);
RegisterObserver(2, &observer2);
RegisterObserver(2, &observer3);
RegisterObserver(3, &observer4);
UnregisterObserver(2, &observer3);
EXPECT_CALL(observer1, OnInsertCountReachedThreshold);
EXPECT_CALL(observer2, OnInsertCountReachedThreshold);
EXPECT_CALL(observer4, OnInsertCountReachedThreshold);
InsertEntry("foo", "bar");
InsertEntry("foo", "bar");
InsertEntry("foo", "bar");
EXPECT_EQ(3u, inserted_entry_count());
}
TEST_F(QpackDecoderHeaderTableTest, Cancel) {
StrictMock<MockObserver> observer;
auto table = std::make_unique<QpackDecoderHeaderTable>();
table->RegisterObserver(1, &observer);
EXPECT_CALL(observer, Cancel);
table.reset();
}
}
}
} |
294 | cpp | google/quiche | value_splitting_header_list | quiche/quic/core/qpack/value_splitting_header_list.cc | quiche/quic/core/qpack/value_splitting_header_list_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_VALUE_SPLITTING_HEADER_LIST_H_
#define QUICHE_QUIC_CORE_QPACK_VALUE_SPLITTING_HEADER_LIST_H_
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
class QUICHE_EXPORT ValueSplittingHeaderList {
public:
using value_type = spdy::Http2HeaderBlock::value_type;
class QUICHE_EXPORT const_iterator {
public:
const_iterator(const spdy::Http2HeaderBlock* header_list,
spdy::Http2HeaderBlock::const_iterator header_list_iterator);
const_iterator(const const_iterator&) = default;
const_iterator& operator=(const const_iterator&) = delete;
bool operator==(const const_iterator& other) const;
bool operator!=(const const_iterator& other) const;
const const_iterator& operator++();
const value_type& operator*() const;
const value_type* operator->() const;
private:
void UpdateHeaderField();
const spdy::Http2HeaderBlock* const header_list_;
spdy::Http2HeaderBlock::const_iterator header_list_iterator_;
absl::string_view::size_type value_start_;
absl::string_view::size_type value_end_;
value_type header_field_;
};
explicit ValueSplittingHeaderList(const spdy::Http2HeaderBlock* header_list);
ValueSplittingHeaderList(const ValueSplittingHeaderList&) = delete;
ValueSplittingHeaderList& operator=(const ValueSplittingHeaderList&) = delete;
const_iterator begin() const;
const_iterator end() const;
private:
const spdy::Http2HeaderBlock* const header_list_;
};
}
#endif
#include "quiche/quic/core/qpack/value_splitting_header_list.h"
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace {
const char kCookieKey[] = "cookie";
const char kCookieSeparator = ';';
const char kOptionalSpaceAfterCookieSeparator = ' ';
const char kNonCookieSeparator = '\0';
}
ValueSplittingHeaderList::const_iterator::const_iterator(
const spdy::Http2HeaderBlock* header_list,
spdy::Http2HeaderBlock::const_iterator header_list_iterator)
: header_list_(header_list),
header_list_iterator_(header_list_iterator),
value_start_(0) {
UpdateHeaderField();
}
bool ValueSplittingHeaderList::const_iterator::operator==(
const const_iterator& other) const {
return header_list_iterator_ == other.header_list_iterator_ &&
value_start_ == other.value_start_;
}
bool ValueSplittingHeaderList::const_iterator::operator!=(
const const_iterator& other) const {
return !(*this == other);
}
const ValueSplittingHeaderList::const_iterator&
ValueSplittingHeaderList::const_iterator::operator++() {
if (value_end_ == absl::string_view::npos) {
++header_list_iterator_;
value_start_ = 0;
} else {
value_start_ = value_end_ + 1;
}
UpdateHeaderField();
return *this;
}
const ValueSplittingHeaderList::value_type&
ValueSplittingHeaderList::const_iterator::operator*() const {
return header_field_;
}
const ValueSplittingHeaderList::value_type*
ValueSplittingHeaderList::const_iterator::operator->() const {
return &header_field_;
}
void ValueSplittingHeaderList::const_iterator::UpdateHeaderField() {
QUICHE_DCHECK(value_start_ != absl::string_view::npos);
if (header_list_iterator_ == header_list_->end()) {
return;
}
const absl::string_view name = header_list_iterator_->first;
const absl::string_view original_value = header_list_iterator_->second;
if (name == kCookieKey) {
value_end_ = original_value.find(kCookieSeparator, value_start_);
} else {
value_end_ = original_value.find(kNonCookieSeparator, value_start_);
}
const absl::string_view value =
original_value.substr(value_start_, value_end_ - value_start_);
header_field_ = std::make_pair(name, value);
if (name == kCookieKey && value_end_ != absl::string_view::npos &&
value_end_ + 1 < original_value.size() &&
original_value[value_end_ + 1] == kOptionalSpaceAfterCookieSeparator) {
++value_end_;
}
}
ValueSplittingHeaderList::ValueSplittingHeaderList(
const spdy::Http2HeaderBlock* header_list)
: header_list_(header_list) {
QUICHE_DCHECK(header_list_);
}
ValueSplittingHeaderList::const_iterator ValueSplittingHeaderList::begin()
const {
return const_iterator(header_list_, header_list_->begin());
}
ValueSplittingHeaderList::const_iterator ValueSplittingHeaderList::end() const {
return const_iterator(header_list_, header_list_->end());
}
} | #include "quiche/quic/core/qpack/value_splitting_header_list.h"
#include <vector>
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
namespace quic {
namespace test {
namespace {
using ::testing::ElementsAre;
using ::testing::Pair;
TEST(ValueSplittingHeaderListTest, Comparison) {
spdy::Http2HeaderBlock block;
block["foo"] = absl::string_view("bar\0baz", 7);
block["baz"] = "qux";
block["cookie"] = "foo; bar";
ValueSplittingHeaderList headers(&block);
ValueSplittingHeaderList::const_iterator it1 = headers.begin();
const int kEnd = 6;
for (int i = 0; i < kEnd; ++i) {
if (i == 0) {
EXPECT_TRUE(it1 == headers.begin());
EXPECT_TRUE(headers.begin() == it1);
EXPECT_FALSE(it1 != headers.begin());
EXPECT_FALSE(headers.begin() != it1);
} else {
EXPECT_FALSE(it1 == headers.begin());
EXPECT_FALSE(headers.begin() == it1);
EXPECT_TRUE(it1 != headers.begin());
EXPECT_TRUE(headers.begin() != it1);
}
if (i == kEnd - 1) {
EXPECT_TRUE(it1 == headers.end());
EXPECT_TRUE(headers.end() == it1);
EXPECT_FALSE(it1 != headers.end());
EXPECT_FALSE(headers.end() != it1);
} else {
EXPECT_FALSE(it1 == headers.end());
EXPECT_FALSE(headers.end() == it1);
EXPECT_TRUE(it1 != headers.end());
EXPECT_TRUE(headers.end() != it1);
}
ValueSplittingHeaderList::const_iterator it2 = headers.begin();
for (int j = 0; j < kEnd; ++j) {
if (i == j) {
EXPECT_TRUE(it1 == it2);
EXPECT_FALSE(it1 != it2);
} else {
EXPECT_FALSE(it1 == it2);
EXPECT_TRUE(it1 != it2);
}
if (j < kEnd - 1) {
ASSERT_NE(it2, headers.end());
++it2;
}
}
if (i < kEnd - 1) {
ASSERT_NE(it1, headers.end());
++it1;
}
}
}
TEST(ValueSplittingHeaderListTest, Empty) {
spdy::Http2HeaderBlock block;
ValueSplittingHeaderList headers(&block);
EXPECT_THAT(headers, ElementsAre());
EXPECT_EQ(headers.begin(), headers.end());
}
TEST(ValueSplittingHeaderListTest, Split) {
struct {
const char* name;
absl::string_view value;
std::vector<const char*> expected_values;
} kTestData[]{
{"foo", "", {""}},
{"foo", "bar", {"bar"}},
{"foo", {"bar\0baz", 7}, {"bar", "baz"}},
{"cookie", "foo;bar", {"foo", "bar"}},
{"cookie", "foo; bar", {"foo", "bar"}},
{"foo", {"\0", 1}, {"", ""}},
{"bar", {"foo\0", 4}, {"foo", ""}},
{"baz", {"\0bar", 4}, {"", "bar"}},
{"qux", {"\0foobar\0", 8}, {"", "foobar", ""}},
{"cookie", ";", {"", ""}},
{"cookie", "foo;", {"foo", ""}},
{"cookie", ";bar", {"", "bar"}},
{"cookie", ";foobar;", {"", "foobar", ""}},
{"cookie", "; ", {"", ""}},
{"cookie", "foo; ", {"foo", ""}},
{"cookie", "; bar", {"", "bar"}},
{"cookie", "; foobar; ", {"", "foobar", ""}},
};
for (size_t i = 0; i < ABSL_ARRAYSIZE(kTestData); ++i) {
spdy::Http2HeaderBlock block;
block[kTestData[i].name] = kTestData[i].value;
ValueSplittingHeaderList headers(&block);
auto it = headers.begin();
for (const char* expected_value : kTestData[i].expected_values) {
ASSERT_NE(it, headers.end());
EXPECT_EQ(it->first, kTestData[i].name);
EXPECT_EQ(it->second, expected_value);
++it;
}
EXPECT_EQ(it, headers.end());
}
}
TEST(ValueSplittingHeaderListTest, MultipleFields) {
spdy::Http2HeaderBlock block;
block["foo"] = absl::string_view("bar\0baz\0", 8);
block["cookie"] = "foo; bar";
block["bar"] = absl::string_view("qux\0foo", 7);
ValueSplittingHeaderList headers(&block);
EXPECT_THAT(headers, ElementsAre(Pair("foo", "bar"), Pair("foo", "baz"),
Pair("foo", ""), Pair("cookie", "foo"),
Pair("cookie", "bar"), Pair("bar", "qux"),
Pair("bar", "foo")));
}
TEST(ValueSplittingHeaderListTest, CookieStartsWithSpace) {
spdy::Http2HeaderBlock block;
block["foo"] = "bar";
block["cookie"] = " foo";
block["bar"] = "baz";
ValueSplittingHeaderList headers(&block);
EXPECT_THAT(headers, ElementsAre(Pair("foo", "bar"), Pair("cookie", " foo"),
Pair("bar", "baz")));
}
}
}
} |
295 | cpp | google/quiche | qpack_decoder_stream_receiver | quiche/quic/core/qpack/qpack_decoder_stream_receiver.cc | quiche/quic/core/qpack/qpack_decoder_stream_receiver_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_DECODER_STREAM_RECEIVER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_DECODER_STREAM_RECEIVER_H_
#include <cstdint>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_instruction_decoder.h"
#include "quiche/quic/core/qpack/qpack_stream_receiver.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QpackDecoderStreamReceiver
: public QpackInstructionDecoder::Delegate,
public QpackStreamReceiver {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() = default;
virtual void OnInsertCountIncrement(uint64_t increment) = 0;
virtual void OnHeaderAcknowledgement(QuicStreamId stream_id) = 0;
virtual void OnStreamCancellation(QuicStreamId stream_id) = 0;
virtual void OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) = 0;
};
explicit QpackDecoderStreamReceiver(Delegate* delegate);
QpackDecoderStreamReceiver() = delete;
QpackDecoderStreamReceiver(const QpackDecoderStreamReceiver&) = delete;
QpackDecoderStreamReceiver& operator=(const QpackDecoderStreamReceiver&) =
delete;
void Decode(absl::string_view data) override;
bool OnInstructionDecoded(const QpackInstruction* instruction) override;
void OnInstructionDecodingError(QpackInstructionDecoder::ErrorCode error_code,
absl::string_view error_message) override;
private:
QpackInstructionDecoder instruction_decoder_;
Delegate* const delegate_;
bool error_detected_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_decoder_stream_receiver.h"
#include "absl/strings/string_view.h"
#include "quiche/http2/decoder/decode_buffer.h"
#include "quiche/http2/decoder/decode_status.h"
#include "quiche/quic/core/qpack/qpack_instructions.h"
namespace quic {
QpackDecoderStreamReceiver::QpackDecoderStreamReceiver(Delegate* delegate)
: instruction_decoder_(QpackDecoderStreamLanguage(), this),
delegate_(delegate),
error_detected_(false) {
QUICHE_DCHECK(delegate_);
}
void QpackDecoderStreamReceiver::Decode(absl::string_view data) {
if (data.empty() || error_detected_) {
return;
}
instruction_decoder_.Decode(data);
}
bool QpackDecoderStreamReceiver::OnInstructionDecoded(
const QpackInstruction* instruction) {
if (instruction == InsertCountIncrementInstruction()) {
delegate_->OnInsertCountIncrement(instruction_decoder_.varint());
return true;
}
if (instruction == HeaderAcknowledgementInstruction()) {
delegate_->OnHeaderAcknowledgement(instruction_decoder_.varint());
return true;
}
QUICHE_DCHECK_EQ(instruction, StreamCancellationInstruction());
delegate_->OnStreamCancellation(instruction_decoder_.varint());
return true;
}
void QpackDecoderStreamReceiver::OnInstructionDecodingError(
QpackInstructionDecoder::ErrorCode error_code,
absl::string_view error_message) {
QUICHE_DCHECK(!error_detected_);
error_detected_ = true;
QuicErrorCode quic_error_code =
(error_code == QpackInstructionDecoder::ErrorCode::INTEGER_TOO_LARGE)
? QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE
: QUIC_INTERNAL_ERROR;
delegate_->OnErrorDetected(quic_error_code, error_message);
}
} | #include "quiche/quic/core/qpack/qpack_decoder_stream_receiver.h"
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
using testing::Eq;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
class MockDelegate : public QpackDecoderStreamReceiver::Delegate {
public:
~MockDelegate() override = default;
MOCK_METHOD(void, OnInsertCountIncrement, (uint64_t increment), (override));
MOCK_METHOD(void, OnHeaderAcknowledgement, (QuicStreamId stream_id),
(override));
MOCK_METHOD(void, OnStreamCancellation, (QuicStreamId stream_id), (override));
MOCK_METHOD(void, OnErrorDetected,
(QuicErrorCode error_code, absl::string_view error_message),
(override));
};
class QpackDecoderStreamReceiverTest : public QuicTest {
protected:
QpackDecoderStreamReceiverTest() : stream_(&delegate_) {}
~QpackDecoderStreamReceiverTest() override = default;
QpackDecoderStreamReceiver stream_;
StrictMock<MockDelegate> delegate_;
};
TEST_F(QpackDecoderStreamReceiverTest, InsertCountIncrement) {
std::string encoded_data;
EXPECT_CALL(delegate_, OnInsertCountIncrement(0));
ASSERT_TRUE(absl::HexStringToBytes("00", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnInsertCountIncrement(10));
ASSERT_TRUE(absl::HexStringToBytes("0a", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnInsertCountIncrement(63));
ASSERT_TRUE(absl::HexStringToBytes("3f00", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnInsertCountIncrement(200));
ASSERT_TRUE(absl::HexStringToBytes("3f8901", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_,
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
ASSERT_TRUE(absl::HexStringToBytes("3fffffffffffffffffffff", &encoded_data));
stream_.Decode(encoded_data);
}
TEST_F(QpackDecoderStreamReceiverTest, HeaderAcknowledgement) {
std::string encoded_data;
EXPECT_CALL(delegate_, OnHeaderAcknowledgement(0));
ASSERT_TRUE(absl::HexStringToBytes("80", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnHeaderAcknowledgement(37));
ASSERT_TRUE(absl::HexStringToBytes("a5", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnHeaderAcknowledgement(127));
ASSERT_TRUE(absl::HexStringToBytes("ff00", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnHeaderAcknowledgement(503));
ASSERT_TRUE(absl::HexStringToBytes("fff802", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_,
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
ASSERT_TRUE(absl::HexStringToBytes("ffffffffffffffffffffff", &encoded_data));
stream_.Decode(encoded_data);
}
TEST_F(QpackDecoderStreamReceiverTest, StreamCancellation) {
std::string encoded_data;
EXPECT_CALL(delegate_, OnStreamCancellation(0));
ASSERT_TRUE(absl::HexStringToBytes("40", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnStreamCancellation(19));
ASSERT_TRUE(absl::HexStringToBytes("53", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnStreamCancellation(63));
ASSERT_TRUE(absl::HexStringToBytes("7f00", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_, OnStreamCancellation(110));
ASSERT_TRUE(absl::HexStringToBytes("7f2f", &encoded_data));
stream_.Decode(encoded_data);
EXPECT_CALL(delegate_,
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
ASSERT_TRUE(absl::HexStringToBytes("7fffffffffffffffffffff", &encoded_data));
stream_.Decode(encoded_data);
}
}
}
} |
296 | cpp | google/quiche | qpack_send_stream | quiche/quic/core/qpack/qpack_send_stream.cc | quiche/quic/core/qpack/qpack_send_stream_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_SEND_STREAM_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_SEND_STREAM_H_
#include <cstdint>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_stream_sender_delegate.h"
#include "quiche/quic/core/quic_stream.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic {
class QuicSession;
class QUICHE_EXPORT QpackSendStream : public QuicStream,
public QpackStreamSenderDelegate {
public:
QpackSendStream(QuicStreamId id, QuicSession* session,
uint64_t http3_stream_type);
QpackSendStream(const QpackSendStream&) = delete;
QpackSendStream& operator=(const QpackSendStream&) = delete;
~QpackSendStream() override = default;
void OnStreamReset(const QuicRstStreamFrame& frame) override;
bool OnStopSending(QuicResetStreamError code) override;
void OnDataAvailable() override { QUICHE_NOTREACHED(); }
void WriteStreamData(absl::string_view data) override;
uint64_t NumBytesBuffered() const override;
void MaybeSendStreamType();
private:
const uint64_t http3_stream_type_;
bool stream_type_sent_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_send_stream.h"
#include "absl/base/macros.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/quic_session.h"
namespace quic {
QpackSendStream::QpackSendStream(QuicStreamId id, QuicSession* session,
uint64_t http3_stream_type)
: QuicStream(id, session, true, WRITE_UNIDIRECTIONAL),
http3_stream_type_(http3_stream_type),
stream_type_sent_(false) {}
void QpackSendStream::OnStreamReset(const QuicRstStreamFrame& ) {
QUIC_BUG(quic_bug_10805_1)
<< "OnStreamReset() called for write unidirectional stream.";
}
bool QpackSendStream::OnStopSending(QuicResetStreamError ) {
stream_delegate()->OnStreamError(
QUIC_HTTP_CLOSED_CRITICAL_STREAM,
"STOP_SENDING received for QPACK send stream");
return false;
}
void QpackSendStream::WriteStreamData(absl::string_view data) {
QuicConnection::ScopedPacketFlusher flusher(session()->connection());
MaybeSendStreamType();
WriteOrBufferData(data, false, nullptr);
}
uint64_t QpackSendStream::NumBytesBuffered() const {
return QuicStream::BufferedDataBytes();
}
void QpackSendStream::MaybeSendStreamType() {
if (!stream_type_sent_) {
char type[sizeof(http3_stream_type_)];
QuicDataWriter writer(ABSL_ARRAYSIZE(type), type);
writer.WriteVarInt62(http3_stream_type_);
WriteOrBufferData(absl::string_view(writer.data(), writer.length()), false,
nullptr);
stream_type_sent_ = true;
}
}
} | #include "quiche/quic/core/qpack/qpack_send_stream.h"
#include <memory>
#include <string>
#include <vector>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/crypto/null_encrypter.h"
#include "quiche/quic/core/http/http_constants.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/quic_config_peer.h"
#include "quiche/quic/test_tools/quic_connection_peer.h"
#include "quiche/quic/test_tools/quic_spdy_session_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
namespace quic {
namespace test {
namespace {
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::Invoke;
using ::testing::StrictMock;
struct TestParams {
TestParams(const ParsedQuicVersion& version, Perspective perspective)
: version(version), perspective(perspective) {
QUIC_LOG(INFO) << "TestParams: version: "
<< ParsedQuicVersionToString(version)
<< ", perspective: " << perspective;
}
TestParams(const TestParams& other)
: version(other.version), perspective(other.perspective) {}
ParsedQuicVersion version;
Perspective perspective;
};
std::string PrintToString(const TestParams& tp) {
return absl::StrCat(
ParsedQuicVersionToString(tp.version), "_",
(tp.perspective == Perspective::IS_CLIENT ? "client" : "server"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
ParsedQuicVersionVector all_supported_versions = AllSupportedVersions();
for (const auto& version : AllSupportedVersions()) {
if (!VersionUsesHttp3(version.transport_version)) {
continue;
}
for (Perspective p : {Perspective::IS_SERVER, Perspective::IS_CLIENT}) {
params.emplace_back(version, p);
}
}
return params;
}
class QpackSendStreamTest : public QuicTestWithParam<TestParams> {
public:
QpackSendStreamTest()
: connection_(new StrictMock<MockQuicConnection>(
&helper_, &alarm_factory_, perspective(),
SupportedVersions(GetParam().version))),
session_(connection_) {
EXPECT_CALL(session_, OnCongestionWindowChange(_)).Times(AnyNumber());
session_.Initialize();
connection_->SetEncrypter(
ENCRYPTION_FORWARD_SECURE,
std::make_unique<NullEncrypter>(connection_->perspective()));
if (connection_->version().SupportsAntiAmplificationLimit()) {
QuicConnectionPeer::SetAddressValidated(connection_);
}
QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesUnidirectional(
session_.config(), kMinimumFlowControlSendWindow);
QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(session_.config(), 3);
session_.OnConfigNegotiated();
qpack_send_stream_ =
QuicSpdySessionPeer::GetQpackDecoderSendStream(&session_);
ON_CALL(session_, WritevData(_, _, _, _, _, _))
.WillByDefault(Invoke(&session_, &MockQuicSpdySession::ConsumeData));
}
Perspective perspective() const { return GetParam().perspective; }
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
StrictMock<MockQuicConnection>* connection_;
StrictMock<MockQuicSpdySession> session_;
QpackSendStream* qpack_send_stream_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QpackSendStreamTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QpackSendStreamTest, WriteStreamTypeOnlyFirstTime) {
std::string data = "data";
EXPECT_CALL(session_, WritevData(_, 1, _, _, _, _));
EXPECT_CALL(session_, WritevData(_, data.length(), _, _, _, _));
qpack_send_stream_->WriteStreamData(absl::string_view(data));
EXPECT_CALL(session_, WritevData(_, data.length(), _, _, _, _));
qpack_send_stream_->WriteStreamData(absl::string_view(data));
EXPECT_CALL(session_, WritevData(_, _, _, _, _, _)).Times(0);
qpack_send_stream_->MaybeSendStreamType();
}
TEST_P(QpackSendStreamTest, StopSendingQpackStream) {
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_CLOSED_CRITICAL_STREAM, _, _));
qpack_send_stream_->OnStopSending(
QuicResetStreamError::FromInternal(QUIC_STREAM_CANCELLED));
}
TEST_P(QpackSendStreamTest, ReceiveDataOnSendStream) {
QuicStreamFrame frame(qpack_send_stream_->id(), false, 0, "test");
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_DATA_RECEIVED_ON_WRITE_UNIDIRECTIONAL_STREAM, _, _));
qpack_send_stream_->OnStreamFrame(frame);
}
TEST_P(QpackSendStreamTest, GetSendWindowSizeFromSession) {
SetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5, true);
EXPECT_NE(session_.GetFlowControlSendWindowSize(qpack_send_stream_->id()),
std::numeric_limits<QuicByteCount>::max());
}
}
}
} |
297 | cpp | google/quiche | qpack_decoded_headers_accumulator | quiche/quic/core/qpack/qpack_decoded_headers_accumulator.cc | quiche/quic/core/qpack/qpack_decoded_headers_accumulator_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_DECODED_HEADERS_ACCUMULATOR_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_DECODED_HEADERS_ACCUMULATOR_H_
#include <cstddef>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/quic_header_list.h"
#include "quiche/quic/core/qpack/qpack_progressive_decoder.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QpackDecoder;
class QUICHE_EXPORT QpackDecodedHeadersAccumulator
: public QpackProgressiveDecoder::HeadersHandlerInterface {
public:
class QUICHE_EXPORT Visitor {
public:
virtual ~Visitor() = default;
virtual void OnHeadersDecoded(QuicHeaderList headers,
bool header_list_size_limit_exceeded) = 0;
virtual void OnHeaderDecodingError(QuicErrorCode error_code,
absl::string_view error_message) = 0;
};
QpackDecodedHeadersAccumulator(QuicStreamId id, QpackDecoder* qpack_decoder,
Visitor* visitor, size_t max_header_list_size);
virtual ~QpackDecodedHeadersAccumulator() = default;
void OnHeaderDecoded(absl::string_view name,
absl::string_view value) override;
void OnDecodingCompleted() override;
void OnDecodingErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) override;
void Decode(absl::string_view data);
void EndHeaderBlock();
private:
std::unique_ptr<QpackProgressiveDecoder> decoder_;
Visitor* visitor_;
size_t max_header_list_size_;
size_t uncompressed_header_bytes_including_overhead_;
QuicHeaderList quic_header_list_;
size_t uncompressed_header_bytes_without_overhead_;
size_t compressed_header_bytes_;
bool header_list_size_limit_exceeded_;
bool headers_decoded_;
bool error_detected_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_decoded_headers_accumulator.h"
#include <utility>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_decoder.h"
#include "quiche/quic/core/qpack/qpack_header_table.h"
#include "quiche/quic/platform/api/quic_bug_tracker.h"
#include "quiche/quic/platform/api/quic_flags.h"
namespace quic {
QpackDecodedHeadersAccumulator::QpackDecodedHeadersAccumulator(
QuicStreamId id, QpackDecoder* qpack_decoder, Visitor* visitor,
size_t max_header_list_size)
: decoder_(qpack_decoder->CreateProgressiveDecoder(id, this)),
visitor_(visitor),
max_header_list_size_(max_header_list_size),
uncompressed_header_bytes_including_overhead_(0),
uncompressed_header_bytes_without_overhead_(0),
compressed_header_bytes_(0),
header_list_size_limit_exceeded_(false),
headers_decoded_(false),
error_detected_(false) {
quic_header_list_.OnHeaderBlockStart();
}
void QpackDecodedHeadersAccumulator::OnHeaderDecoded(absl::string_view name,
absl::string_view value) {
QUICHE_DCHECK(!error_detected_);
uncompressed_header_bytes_without_overhead_ += name.size() + value.size();
if (header_list_size_limit_exceeded_) {
return;
}
uncompressed_header_bytes_including_overhead_ +=
name.size() + value.size() + kQpackEntrySizeOverhead;
const size_t uncompressed_header_bytes =
GetQuicFlag(quic_header_size_limit_includes_overhead)
? uncompressed_header_bytes_including_overhead_
: uncompressed_header_bytes_without_overhead_;
if (uncompressed_header_bytes > max_header_list_size_) {
header_list_size_limit_exceeded_ = true;
}
quic_header_list_.OnHeader(name, value);
}
void QpackDecodedHeadersAccumulator::OnDecodingCompleted() {
QUICHE_DCHECK(!headers_decoded_);
QUICHE_DCHECK(!error_detected_);
headers_decoded_ = true;
quic_header_list_.OnHeaderBlockEnd(
uncompressed_header_bytes_without_overhead_, compressed_header_bytes_);
visitor_->OnHeadersDecoded(std::move(quic_header_list_),
header_list_size_limit_exceeded_);
}
void QpackDecodedHeadersAccumulator::OnDecodingErrorDetected(
QuicErrorCode error_code, absl::string_view error_message) {
QUICHE_DCHECK(!error_detected_);
QUICHE_DCHECK(!headers_decoded_);
error_detected_ = true;
visitor_->OnHeaderDecodingError(error_code, error_message);
}
void QpackDecodedHeadersAccumulator::Decode(absl::string_view data) {
QUICHE_DCHECK(!error_detected_);
compressed_header_bytes_ += data.size();
decoder_->Decode(data);
}
void QpackDecodedHeadersAccumulator::EndHeaderBlock() {
QUICHE_DCHECK(!error_detected_);
QUICHE_DCHECK(!headers_decoded_);
if (!decoder_) {
QUIC_BUG(b215142466_EndHeaderBlock);
return;
}
decoder_->EndHeaderBlock();
}
} | #include "quiche/quic/core/qpack/qpack_decoded_headers_accumulator.h"
#include <cstring>
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_decoder.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/qpack/qpack_test_utils.h"
using ::testing::_;
using ::testing::ElementsAre;
using ::testing::Eq;
using ::testing::Pair;
using ::testing::SaveArg;
using ::testing::StrictMock;
namespace quic {
namespace test {
namespace {
QuicStreamId kTestStreamId = 1;
const size_t kMaxHeaderListSize = 100;
const size_t kMaxDynamicTableCapacity = 100;
const uint64_t kMaximumBlockedStreams = 1;
const char* const kHeaderAcknowledgement = "\x81";
class MockVisitor : public QpackDecodedHeadersAccumulator::Visitor {
public:
~MockVisitor() override = default;
MOCK_METHOD(void, OnHeadersDecoded,
(QuicHeaderList headers, bool header_list_size_limit_exceeded),
(override));
MOCK_METHOD(void, OnHeaderDecodingError,
(QuicErrorCode error_code, absl::string_view error_message),
(override));
};
}
class QpackDecodedHeadersAccumulatorTest : public QuicTest {
protected:
QpackDecodedHeadersAccumulatorTest()
: qpack_decoder_(kMaxDynamicTableCapacity, kMaximumBlockedStreams,
&encoder_stream_error_delegate_),
accumulator_(kTestStreamId, &qpack_decoder_, &visitor_,
kMaxHeaderListSize) {
qpack_decoder_.set_qpack_stream_sender_delegate(
&decoder_stream_sender_delegate_);
}
NoopEncoderStreamErrorDelegate encoder_stream_error_delegate_;
StrictMock<MockQpackStreamSenderDelegate> decoder_stream_sender_delegate_;
QpackDecoder qpack_decoder_;
StrictMock<MockVisitor> visitor_;
QpackDecodedHeadersAccumulator accumulator_;
};
TEST_F(QpackDecodedHeadersAccumulatorTest, EmptyPayload) {
EXPECT_CALL(visitor_,
OnHeaderDecodingError(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Incomplete header data prefix.")));
accumulator_.EndHeaderBlock();
}
TEST_F(QpackDecodedHeadersAccumulatorTest, TruncatedHeaderBlockPrefix) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("00", &encoded_data));
accumulator_.Decode(encoded_data);
EXPECT_CALL(visitor_,
OnHeaderDecodingError(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Incomplete header data prefix.")));
accumulator_.EndHeaderBlock();
}
TEST_F(QpackDecodedHeadersAccumulatorTest, EmptyHeaderList) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("0000", &encoded_data));
accumulator_.Decode(encoded_data);
QuicHeaderList header_list;
EXPECT_CALL(visitor_, OnHeadersDecoded(_, false))
.WillOnce(SaveArg<0>(&header_list));
accumulator_.EndHeaderBlock();
EXPECT_EQ(0u, header_list.uncompressed_header_bytes());
EXPECT_EQ(encoded_data.size(), header_list.compressed_header_bytes());
EXPECT_TRUE(header_list.empty());
}
TEST_F(QpackDecodedHeadersAccumulatorTest, TruncatedPayload) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("00002366", &encoded_data));
accumulator_.Decode(encoded_data);
EXPECT_CALL(visitor_, OnHeaderDecodingError(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Incomplete header block.")));
accumulator_.EndHeaderBlock();
}
TEST_F(QpackDecodedHeadersAccumulatorTest, InvalidPayload) {
EXPECT_CALL(visitor_,
OnHeaderDecodingError(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Static table entry not found.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("0000ff23ff24", &encoded_data));
accumulator_.Decode(encoded_data);
}
TEST_F(QpackDecodedHeadersAccumulatorTest, Success) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f03626172", &encoded_data));
accumulator_.Decode(encoded_data);
QuicHeaderList header_list;
EXPECT_CALL(visitor_, OnHeadersDecoded(_, false))
.WillOnce(SaveArg<0>(&header_list));
accumulator_.EndHeaderBlock();
EXPECT_THAT(header_list, ElementsAre(Pair("foo", "bar")));
EXPECT_EQ(strlen("foo") + strlen("bar"),
header_list.uncompressed_header_bytes());
EXPECT_EQ(encoded_data.size(), header_list.compressed_header_bytes());
}
TEST_F(QpackDecodedHeadersAccumulatorTest, ExceedLimitThenSplitInstruction) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes(
"0000"
"26666f6f626172"
"7d61616161616161616161616161616161616161"
"616161616161616161616161616161616161616161616161616161616161616161616161"
"616161616161616161616161616161616161616161616161616161616161616161616161"
"61616161616161616161616161616161616161616161616161616161616161616161"
"ff",
&encoded_data));
accumulator_.Decode(encoded_data);
ASSERT_TRUE(absl::HexStringToBytes(
"0f",
&encoded_data));
accumulator_.Decode(encoded_data);
EXPECT_CALL(visitor_, OnHeadersDecoded(_, true));
accumulator_.EndHeaderBlock();
}
TEST_F(QpackDecodedHeadersAccumulatorTest, ExceedLimitBlocked) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes(
"0200"
"80"
"26666f6f626172"
"7d61616161616161616161616161616161616161"
"616161616161616161616161616161616161616161616161616161616161616161616161"
"616161616161616161616161616161616161616161616161616161616161616161616161"
"61616161616161616161616161616161616161616161616161616161616161616161",
&encoded_data));
accumulator_.Decode(encoded_data);
accumulator_.EndHeaderBlock();
qpack_decoder_.OnSetDynamicTableCapacity(kMaxDynamicTableCapacity);
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)));
EXPECT_CALL(visitor_, OnHeadersDecoded(_, true));
qpack_decoder_.OnInsertWithoutNameReference("foo", "bar");
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
qpack_decoder_.FlushDecoderStream();
}
}
TEST_F(QpackDecodedHeadersAccumulatorTest, BlockedDecoding) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("020080", &encoded_data));
accumulator_.Decode(encoded_data);
accumulator_.EndHeaderBlock();
qpack_decoder_.OnSetDynamicTableCapacity(kMaxDynamicTableCapacity);
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)));
QuicHeaderList header_list;
EXPECT_CALL(visitor_, OnHeadersDecoded(_, false))
.WillOnce(SaveArg<0>(&header_list));
qpack_decoder_.OnInsertWithoutNameReference("foo", "bar");
EXPECT_THAT(header_list, ElementsAre(Pair("foo", "bar")));
EXPECT_EQ(strlen("foo") + strlen("bar"),
header_list.uncompressed_header_bytes());
EXPECT_EQ(encoded_data.size(), header_list.compressed_header_bytes());
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
qpack_decoder_.FlushDecoderStream();
}
}
TEST_F(QpackDecodedHeadersAccumulatorTest,
BlockedDecodingUnblockedBeforeEndOfHeaderBlock) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("020080", &encoded_data));
accumulator_.Decode(encoded_data);
qpack_decoder_.OnSetDynamicTableCapacity(kMaxDynamicTableCapacity);
qpack_decoder_.OnInsertWithoutNameReference("foo", "bar");
EXPECT_CALL(decoder_stream_sender_delegate_,
WriteStreamData(Eq(kHeaderAcknowledgement)));
ASSERT_TRUE(absl::HexStringToBytes("80", &encoded_data));
accumulator_.Decode(encoded_data);
QuicHeaderList header_list;
EXPECT_CALL(visitor_, OnHeadersDecoded(_, false))
.WillOnce(SaveArg<0>(&header_list));
accumulator_.EndHeaderBlock();
EXPECT_THAT(header_list, ElementsAre(Pair("foo", "bar"), Pair("foo", "bar")));
if (GetQuicRestartFlag(quic_opport_bundle_qpack_decoder_data5)) {
qpack_decoder_.FlushDecoderStream();
}
}
TEST_F(QpackDecodedHeadersAccumulatorTest,
BlockedDecodingUnblockedAndErrorBeforeEndOfHeaderBlock) {
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("0200", &encoded_data));
accumulator_.Decode(encoded_data);
ASSERT_TRUE(absl::HexStringToBytes("80", &encoded_data));
accumulator_.Decode(encoded_data);
ASSERT_TRUE(absl::HexStringToBytes("81", &encoded_data));
accumulator_.Decode(encoded_data);
qpack_decoder_.OnSetDynamicTableCapacity(kMaxDynamicTableCapacity);
EXPECT_CALL(visitor_, OnHeaderDecodingError(QUIC_QPACK_DECOMPRESSION_FAILED,
Eq("Invalid relative index.")));
qpack_decoder_.OnInsertWithoutNameReference("foo", "bar");
}
}
} |
298 | cpp | google/quiche | qpack_encoder_stream_receiver | quiche/quic/core/qpack/qpack_encoder_stream_receiver.cc | quiche/quic/core/qpack/qpack_encoder_stream_receiver_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_RECEIVER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_RECEIVER_H_
#include <cstdint>
#include <string>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_instruction_decoder.h"
#include "quiche/quic/core/qpack/qpack_stream_receiver.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class QUICHE_EXPORT QpackEncoderStreamReceiver
: public QpackInstructionDecoder::Delegate,
public QpackStreamReceiver {
public:
class QUICHE_EXPORT Delegate {
public:
virtual ~Delegate() = default;
virtual void OnInsertWithNameReference(bool is_static, uint64_t name_index,
absl::string_view value) = 0;
virtual void OnInsertWithoutNameReference(absl::string_view name,
absl::string_view value) = 0;
virtual void OnDuplicate(uint64_t index) = 0;
virtual void OnSetDynamicTableCapacity(uint64_t capacity) = 0;
virtual void OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) = 0;
};
explicit QpackEncoderStreamReceiver(Delegate* delegate);
QpackEncoderStreamReceiver() = delete;
QpackEncoderStreamReceiver(const QpackEncoderStreamReceiver&) = delete;
QpackEncoderStreamReceiver& operator=(const QpackEncoderStreamReceiver&) =
delete;
~QpackEncoderStreamReceiver() override = default;
void Decode(absl::string_view data) override;
bool OnInstructionDecoded(const QpackInstruction* instruction) override;
void OnInstructionDecodingError(QpackInstructionDecoder::ErrorCode error_code,
absl::string_view error_message) override;
private:
QpackInstructionDecoder instruction_decoder_;
Delegate* const delegate_;
bool error_detected_;
};
}
#endif
#include "quiche/quic/core/qpack/qpack_encoder_stream_receiver.h"
#include "absl/strings/string_view.h"
#include "quiche/http2/decoder/decode_buffer.h"
#include "quiche/http2/decoder/decode_status.h"
#include "quiche/quic/core/qpack/qpack_instructions.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
QpackEncoderStreamReceiver::QpackEncoderStreamReceiver(Delegate* delegate)
: instruction_decoder_(QpackEncoderStreamLanguage(), this),
delegate_(delegate),
error_detected_(false) {
QUICHE_DCHECK(delegate_);
}
void QpackEncoderStreamReceiver::Decode(absl::string_view data) {
if (data.empty() || error_detected_) {
return;
}
instruction_decoder_.Decode(data);
}
bool QpackEncoderStreamReceiver::OnInstructionDecoded(
const QpackInstruction* instruction) {
if (instruction == InsertWithNameReferenceInstruction()) {
delegate_->OnInsertWithNameReference(instruction_decoder_.s_bit(),
instruction_decoder_.varint(),
instruction_decoder_.value());
return true;
}
if (instruction == InsertWithoutNameReferenceInstruction()) {
delegate_->OnInsertWithoutNameReference(instruction_decoder_.name(),
instruction_decoder_.value());
return true;
}
if (instruction == DuplicateInstruction()) {
delegate_->OnDuplicate(instruction_decoder_.varint());
return true;
}
QUICHE_DCHECK_EQ(instruction, SetDynamicTableCapacityInstruction());
delegate_->OnSetDynamicTableCapacity(instruction_decoder_.varint());
return true;
}
void QpackEncoderStreamReceiver::OnInstructionDecodingError(
QpackInstructionDecoder::ErrorCode error_code,
absl::string_view error_message) {
QUICHE_DCHECK(!error_detected_);
error_detected_ = true;
QuicErrorCode quic_error_code;
switch (error_code) {
case QpackInstructionDecoder::ErrorCode::INTEGER_TOO_LARGE:
quic_error_code = QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE;
break;
case QpackInstructionDecoder::ErrorCode::STRING_LITERAL_TOO_LONG:
quic_error_code = QUIC_QPACK_ENCODER_STREAM_STRING_LITERAL_TOO_LONG;
break;
case QpackInstructionDecoder::ErrorCode::HUFFMAN_ENCODING_ERROR:
quic_error_code = QUIC_QPACK_ENCODER_STREAM_HUFFMAN_ENCODING_ERROR;
break;
default:
quic_error_code = QUIC_INTERNAL_ERROR;
}
delegate_->OnErrorDetected(quic_error_code, error_message);
}
} | #include "quiche/quic/core/qpack/qpack_encoder_stream_receiver.h"
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/platform/api/quic_test.h"
using testing::Eq;
using testing::StrictMock;
namespace quic {
namespace test {
namespace {
class MockDelegate : public QpackEncoderStreamReceiver::Delegate {
public:
~MockDelegate() override = default;
MOCK_METHOD(void, OnInsertWithNameReference,
(bool is_static, uint64_t name_index, absl::string_view value),
(override));
MOCK_METHOD(void, OnInsertWithoutNameReference,
(absl::string_view name, absl::string_view value), (override));
MOCK_METHOD(void, OnDuplicate, (uint64_t index), (override));
MOCK_METHOD(void, OnSetDynamicTableCapacity, (uint64_t capacity), (override));
MOCK_METHOD(void, OnErrorDetected,
(QuicErrorCode error_code, absl::string_view error_message),
(override));
};
class QpackEncoderStreamReceiverTest : public QuicTest {
protected:
QpackEncoderStreamReceiverTest() : stream_(&delegate_) {}
~QpackEncoderStreamReceiverTest() override = default;
void Decode(absl::string_view data) { stream_.Decode(data); }
StrictMock<MockDelegate>* delegate() { return &delegate_; }
private:
QpackEncoderStreamReceiver stream_;
StrictMock<MockDelegate> delegate_;
};
TEST_F(QpackEncoderStreamReceiverTest, InsertWithNameReference) {
EXPECT_CALL(*delegate(), OnInsertWithNameReference(true, 5, Eq("")));
EXPECT_CALL(*delegate(), OnInsertWithNameReference(true, 2, Eq("foo")));
EXPECT_CALL(*delegate(), OnInsertWithNameReference(false, 137, Eq("bar")));
EXPECT_CALL(*delegate(),
OnInsertWithNameReference(false, 42, Eq(std::string(127, 'Z'))));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes(
"c500"
"c28294e7"
"bf4a03626172"
"aa7f005a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a",
&encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, InsertWithNameReferenceIndexTooLarge) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(
absl::HexStringToBytes("bfffffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, InsertWithNameReferenceValueTooLong) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(
absl::HexStringToBytes("c57fffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, InsertWithoutNameReference) {
EXPECT_CALL(*delegate(), OnInsertWithoutNameReference(Eq(""), Eq("")));
EXPECT_CALL(*delegate(), OnInsertWithoutNameReference(Eq("bar"), Eq("bar")));
EXPECT_CALL(*delegate(), OnInsertWithoutNameReference(Eq("foo"), Eq("foo")));
EXPECT_CALL(*delegate(),
OnInsertWithoutNameReference(Eq(std::string(31, 'Z')),
Eq(std::string(127, 'Z'))));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes(
"4000"
"4362617203626172"
"6294e78294e7"
"5f005a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a7f005a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a",
&encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest,
InsertWithoutNameReferenceNameTooLongForVarintDecoder) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("5fffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest,
InsertWithoutNameReferenceNameExceedsLimit) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_STRING_LITERAL_TOO_LONG,
Eq("String literal too long.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("5fffff7f", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest,
InsertWithoutNameReferenceValueTooLongForVarintDecoder) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(
absl::HexStringToBytes("436261727fffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest,
InsertWithoutNameReferenceValueExceedsLimit) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_STRING_LITERAL_TOO_LONG,
Eq("String literal too long.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("436261727fffff7f", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, Duplicate) {
EXPECT_CALL(*delegate(), OnDuplicate(17));
EXPECT_CALL(*delegate(), OnDuplicate(500));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("111fd503", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, DuplicateIndexTooLarge) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("1fffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, SetDynamicTableCapacity) {
EXPECT_CALL(*delegate(), OnSetDynamicTableCapacity(17));
EXPECT_CALL(*delegate(), OnSetDynamicTableCapacity(500));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("313fd503", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, SetDynamicTableCapacityTooLarge) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("3fffffffffffffffffffff", &encoded_data));
Decode(encoded_data);
}
TEST_F(QpackEncoderStreamReceiverTest, InvalidHuffmanEncoding) {
EXPECT_CALL(*delegate(),
OnErrorDetected(QUIC_QPACK_ENCODER_STREAM_HUFFMAN_ENCODING_ERROR,
Eq("Error in Huffman-encoded string.")));
std::string encoded_data;
ASSERT_TRUE(absl::HexStringToBytes("c281ff", &encoded_data));
Decode(encoded_data);
}
}
}
} |
299 | cpp | google/quiche | qpack_encoder | quiche/quic/core/qpack/qpack_encoder.cc | quiche/quic/core/qpack/qpack_encoder_test.cc | #ifndef QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_H_
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_blocking_manager.h"
#include "quiche/quic/core/qpack/qpack_decoder_stream_receiver.h"
#include "quiche/quic/core/qpack/qpack_encoder_stream_sender.h"
#include "quiche/quic/core/qpack/qpack_header_table.h"
#include "quiche/quic/core/qpack/qpack_instructions.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_exported_stats.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/spdy/core/http2_header_block.h"
namespace quic {
namespace test {
class QpackEncoderPeer;
}
class QUICHE_EXPORT QpackEncoder : public QpackDecoderStreamReceiver::Delegate {
public:
class QUICHE_EXPORT DecoderStreamErrorDelegate {
public:
virtual ~DecoderStreamErrorDelegate() {}
virtual void OnDecoderStreamError(QuicErrorCode error_code,
absl::string_view error_message) = 0;
};
QpackEncoder(DecoderStreamErrorDelegate* decoder_stream_error_delegate,
HuffmanEncoding huffman_encoding);
~QpackEncoder() override;
std::string EncodeHeaderList(QuicStreamId stream_id,
const spdy::Http2HeaderBlock& header_list,
QuicByteCount* encoder_stream_sent_byte_count);
bool SetMaximumDynamicTableCapacity(uint64_t maximum_dynamic_table_capacity);
void SetDynamicTableCapacity(uint64_t dynamic_table_capacity);
bool SetMaximumBlockedStreams(uint64_t maximum_blocked_streams);
void OnInsertCountIncrement(uint64_t increment) override;
void OnHeaderAcknowledgement(QuicStreamId stream_id) override;
void OnStreamCancellation(QuicStreamId stream_id) override;
void OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) override;
void set_qpack_stream_sender_delegate(QpackStreamSenderDelegate* delegate) {
encoder_stream_sender_.set_qpack_stream_sender_delegate(delegate);
}
QpackStreamReceiver* decoder_stream_receiver() {
return &decoder_stream_receiver_;
}
bool dynamic_table_entry_referenced() const {
return header_table_.dynamic_table_entry_referenced();
}
uint64_t maximum_blocked_streams() const { return maximum_blocked_streams_; }
uint64_t MaximumDynamicTableCapacity() const {
return header_table_.maximum_dynamic_table_capacity();
}
private:
friend class test::QpackEncoderPeer;
using Representation = QpackInstructionWithValues;
using Representations = std::vector<Representation>;
static Representation EncodeIndexedHeaderField(
bool is_static, uint64_t index,
QpackBlockingManager::IndexSet* referred_indices);
static Representation EncodeLiteralHeaderFieldWithNameReference(
bool is_static, uint64_t index, absl::string_view value,
QpackBlockingManager::IndexSet* referred_indices);
static Representation EncodeLiteralHeaderField(absl::string_view name,
absl::string_view value);
Representations FirstPassEncode(
QuicStreamId stream_id, const spdy::Http2HeaderBlock& header_list,
QpackBlockingManager::IndexSet* referred_indices,
QuicByteCount* encoder_stream_sent_byte_count);
std::string SecondPassEncode(Representations representations,
uint64_t required_insert_count) const;
const HuffmanEncoding huffman_encoding_;
DecoderStreamErrorDelegate* const decoder_stream_error_delegate_;
QpackDecoderStreamReceiver decoder_stream_receiver_;
QpackEncoderStreamSender encoder_stream_sender_;
QpackEncoderHeaderTable header_table_;
uint64_t maximum_blocked_streams_;
QpackBlockingManager blocking_manager_;
int header_list_count_;
const bool better_compression_ =
GetQuicReloadableFlag(quic_better_qpack_compression);
};
class QUICHE_EXPORT NoopDecoderStreamErrorDelegate
: public QpackEncoder::DecoderStreamErrorDelegate {
public:
~NoopDecoderStreamErrorDelegate() override = default;
void OnDecoderStreamError(QuicErrorCode , absl::string_view
) override {}
};
}
#endif
#include "quiche/quic/core/qpack/qpack_encoder.h"
#include <algorithm>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_index_conversions.h"
#include "quiche/quic/core/qpack/qpack_instruction_encoder.h"
#include "quiche/quic/core/qpack/qpack_required_insert_count.h"
#include "quiche/quic/core/qpack/value_splitting_header_list.h"
#include "quiche/quic/platform/api/quic_flag_utils.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_logging.h"
namespace quic {
namespace {
const float kDrainingFraction = 0.25;
}
QpackEncoder::QpackEncoder(
DecoderStreamErrorDelegate* decoder_stream_error_delegate,
HuffmanEncoding huffman_encoding)
: huffman_encoding_(huffman_encoding),
decoder_stream_error_delegate_(decoder_stream_error_delegate),
decoder_stream_receiver_(this),
encoder_stream_sender_(huffman_encoding),
maximum_blocked_streams_(0),
header_list_count_(0) {
QUICHE_DCHECK(decoder_stream_error_delegate_);
}
QpackEncoder::~QpackEncoder() {}
QpackEncoder::Representation QpackEncoder::EncodeIndexedHeaderField(
bool is_static, uint64_t index,
QpackBlockingManager::IndexSet* referred_indices) {
if (!is_static) {
referred_indices->insert(index);
}
return Representation::IndexedHeaderField(is_static, index);
}
QpackEncoder::Representation
QpackEncoder::EncodeLiteralHeaderFieldWithNameReference(
bool is_static, uint64_t index, absl::string_view value,
QpackBlockingManager::IndexSet* referred_indices) {
if (!is_static) {
referred_indices->insert(index);
}
return Representation::LiteralHeaderFieldNameReference(is_static, index,
value);
}
QpackEncoder::Representation QpackEncoder::EncodeLiteralHeaderField(
absl::string_view name, absl::string_view value) {
return Representation::LiteralHeaderField(name, value);
}
QpackEncoder::Representations QpackEncoder::FirstPassEncode(
QuicStreamId stream_id, const spdy::Http2HeaderBlock& header_list,
QpackBlockingManager::IndexSet* referred_indices,
QuicByteCount* encoder_stream_sent_byte_count) {
const QuicByteCount initial_encoder_stream_buffered_byte_count =
encoder_stream_sender_.BufferedByteCount();
const bool can_write_to_encoder_stream = encoder_stream_sender_.CanWrite();
Representations representations;
representations.reserve(header_list.size());
const uint64_t known_received_count =
blocking_manager_.known_received_count();
uint64_t smallest_non_evictable_index = std::min(
blocking_manager_.smallest_blocking_index(), known_received_count);
const uint64_t draining_index =
header_table_.draining_index(kDrainingFraction);
const bool blocking_allowed = blocking_manager_.blocking_allowed_on_stream(
stream_id, maximum_blocked_streams_);
bool dynamic_table_insertion_blocked = false;
bool blocked_stream_limit_exhausted = false;
for (const auto& header : ValueSplittingHeaderList(&header_list)) {
absl::string_view name = header.first;
absl::string_view value = header.second;
QpackEncoderHeaderTable::MatchResult match_result =
header_table_.FindHeaderField(name, value);
switch (match_result.match_type) {
case QpackEncoderHeaderTable::MatchType::kNameAndValue: {
if (match_result.is_static) {
representations.push_back(EncodeIndexedHeaderField(
match_result.is_static, match_result.index, referred_indices));
break;
}
if (match_result.index >= draining_index) {
if (!blocking_allowed && match_result.index >= known_received_count) {
blocked_stream_limit_exhausted = true;
} else {
representations.push_back(EncodeIndexedHeaderField(
match_result.is_static, match_result.index, referred_indices));
smallest_non_evictable_index =
std::min(smallest_non_evictable_index, match_result.index);
header_table_.set_dynamic_table_entry_referenced();
break;
}
} else {
if (!blocking_allowed) {
blocked_stream_limit_exhausted = true;
} else if (QpackEntry::Size(name, value) >
header_table_.MaxInsertSizeWithoutEvictingGivenEntry(
std::min(smallest_non_evictable_index,
match_result.index))) {
dynamic_table_insertion_blocked = true;
} else {
if (can_write_to_encoder_stream) {
encoder_stream_sender_.SendDuplicate(
QpackAbsoluteIndexToEncoderStreamRelativeIndex(
match_result.index,
header_table_.inserted_entry_count()));
uint64_t new_index = header_table_.InsertEntry(name, value);
representations.push_back(EncodeIndexedHeaderField(
match_result.is_static, new_index, referred_indices));
smallest_non_evictable_index =
std::min(smallest_non_evictable_index, match_result.index);
header_table_.set_dynamic_table_entry_referenced();
break;
}
}
}
if (!better_compression_) {
representations.push_back(EncodeLiteralHeaderField(name, value));
break;
}
QUIC_RELOADABLE_FLAG_COUNT(quic_better_qpack_compression);
QpackEncoderHeaderTable::MatchResult match_result_name_only =
header_table_.FindHeaderName(name);
if (match_result_name_only.match_type !=
QpackEncoderHeaderTable::MatchType::kName ||
(match_result_name_only.is_static == match_result.is_static &&
match_result_name_only.index == match_result.index)) {
representations.push_back(EncodeLiteralHeaderField(name, value));
break;
}
match_result = match_result_name_only;
ABSL_FALLTHROUGH_INTENDED;
}
case QpackEncoderHeaderTable::MatchType::kName: {
if (match_result.is_static) {
if (blocking_allowed &&
QpackEntry::Size(name, value) <=
header_table_.MaxInsertSizeWithoutEvictingGivenEntry(
smallest_non_evictable_index)) {
if (can_write_to_encoder_stream) {
encoder_stream_sender_.SendInsertWithNameReference(
match_result.is_static, match_result.index, value);
uint64_t new_index = header_table_.InsertEntry(name, value);
representations.push_back(EncodeIndexedHeaderField(
false, new_index, referred_indices));
smallest_non_evictable_index =
std::min<uint64_t>(smallest_non_evictable_index, new_index);
break;
}
}
representations.push_back(EncodeLiteralHeaderFieldWithNameReference(
match_result.is_static, match_result.index, value,
referred_indices));
break;
}
if (!blocking_allowed) {
blocked_stream_limit_exhausted = true;
} else if (QpackEntry::Size(name, value) >
header_table_.MaxInsertSizeWithoutEvictingGivenEntry(
std::min(smallest_non_evictable_index,
match_result.index))) {
dynamic_table_insertion_blocked = true;
} else {
if (can_write_to_encoder_stream) {
encoder_stream_sender_.SendInsertWithNameReference(
match_result.is_static,
QpackAbsoluteIndexToEncoderStreamRelativeIndex(
match_result.index, header_table_.inserted_entry_count()),
value);
uint64_t new_index = header_table_.InsertEntry(name, value);
representations.push_back(EncodeIndexedHeaderField(
match_result.is_static, new_index, referred_indices));
smallest_non_evictable_index =
std::min(smallest_non_evictable_index, match_result.index);
header_table_.set_dynamic_table_entry_referenced();
break;
}
}
if ((blocking_allowed || match_result.index < known_received_count) &&
match_result.index >= draining_index) {
representations.push_back(EncodeLiteralHeaderFieldWithNameReference(
match_result.is_static, match_result.index, value,
referred_indices));
smallest_non_evictable_index =
std::min(smallest_non_evictable_index, match_result.index);
header_table_.set_dynamic_table_entry_referenced();
break;
}
representations.push_back(EncodeLiteralHeaderField(name, value));
break;
}
case QpackEncoderHeaderTable::MatchType::kNoMatch: {
if (!blocking_allowed) {
blocked_stream_limit_exhausted = true;
} else if (QpackEntry::Size(name, value) >
header_table_.MaxInsertSizeWithoutEvictingGivenEntry(
smallest_non_evictable_index)) {
dynamic_table_insertion_blocked = true;
} else {
if (can_write_to_encoder_stream) {
encoder_stream_sender_.SendInsertWithoutNameReference(name, value);
uint64_t new_index = header_table_.InsertEntry(name, value);
representations.push_back(EncodeIndexedHeaderField(
false, new_index, referred_indices));
smallest_non_evictable_index =
std::min<uint64_t>(smallest_non_evictable_index, new_index);
break;
}
}
representations.push_back(EncodeLiteralHeaderField(name, value));
break;
}
}
}
const QuicByteCount encoder_stream_buffered_byte_count =
encoder_stream_sender_.BufferedByteCount();
QUICHE_DCHECK_GE(encoder_stream_buffered_byte_count,
initial_encoder_stream_buffered_byte_count);
if (encoder_stream_sent_byte_count) {
*encoder_stream_sent_byte_count =
encoder_stream_buffered_byte_count -
initial_encoder_stream_buffered_byte_count;
}
if (can_write_to_encoder_stream) {
encoder_stream_sender_.Flush();
} else {
QUICHE_DCHECK_EQ(encoder_stream_buffered_byte_count,
initial_encoder_stream_buffered_byte_count);
}
++header_list_count_;
if (dynamic_table_insertion_blocked) {
QUIC_HISTOGRAM_COUNTS(
"QuicSession.Qpack.HeaderListCountWhenInsertionBlocked",
header_list_count_, 1, 1000,
50,
"The ordinality of a header list within a connection during the "
"encoding of which at least one dynamic table insertion was "
"blocked.");
} else {
QUIC_HISTOGRAM_COUNTS(
"QuicSession.Qpack.HeaderListCountWhenInsertionNotBlocked",
header_list_count_, 1, 1000,
50,
"The ordinality of a header list within a connection during the "
"encoding of which no dynamic table insertion was blocked.");
}
if (blocked_stream_limit_exhausted) {
QUIC_HISTOGRAM_COUNTS(
"QuicSession.Qpack.HeaderListCountWhenBlockedStreamLimited",
header_list_count_, 1, 1000,
50,
"The ordinality of a header list within a connection during the "
"encoding of which unacknowledged dynamic table entries could not be "
"referenced due to the limit on the number of blocked streams.");
} else {
QUIC_HISTOGRAM_COUNTS(
"QuicSession.Qpack.HeaderListCountWhenNotBlockedStreamLimited",
header_list_count_, 1, 1000,
50,
"The ordinality of a header list within a connection during the "
"encoding of which the limit on the number of blocked streams did "
"not "
"prevent referencing unacknowledged dynamic table entries.");
}
return representations;
}
std::string QpackEncoder::SecondPassEncode(
QpackEncoder::Representations representations,
uint64_t required_insert_count) const {
QpackInstructionEncoder instruction_encoder(huffman_encoding_);
std::string encoded_headers;
instruction_encoder.Encode(
Representation::Prefix(QpackEncodeRequiredInsertCount(
required_insert_count, header_table_.max_entries())),
&encoded_headers);
const uint64_t base = required_insert_count;
for (auto& representation : representations) {
if ((representation.instruction() == QpackIndexedHeaderFieldInstruction() ||
representation.instruction() ==
QpackLiteralHeaderFieldNameReferenceInstruction()) &&
!representation.s_bit()) {
representation.set_varint(QpackAbsoluteIndexToRequestStreamRelativeIndex(
representation.varint(), base));
}
instruction_encoder.Encode(representation, &encoded_headers);
}
return encoded_headers;
}
std::string QpackEncoder::EncodeHeaderList(
QuicStreamId stream_id, const spdy::Http2HeaderBlock& header_list,
QuicByteCount* encoder_stream_sent_byte_count) {
QpackBlockingManager::IndexSet referred_indices;
Representations representations =
FirstPassEncode(stream_id, header_list, &referred_indices,
encoder_stream_sent_byte_count);
const uint64_t required_insert_count =
referred_indices.empty()
? 0
: QpackBlockingManager::RequiredInsertCount(referred_indices);
if (!referred_indices.empty()) {
blocking_manager_.OnHeaderBlockSent(stream_id, std::move(referred_indices));
}
return SecondPassEncode(std::move(representations), required_insert_count);
}
bool QpackEncoder::SetMaximumDynamicTableCapacity(
uint64_t maximum_dynamic_table_capacity) {
return header_table_.SetMaximumDynamicTableCapacity(
maximum_dynamic_table_capacity);
}
void QpackEncoder::SetDynamicTableCapacity(uint64_t dynamic_table_capacity) {
encoder_stream_sender_.SendSetDynamicTableCapacity(dynamic_table_capacity);
bool success = header_table_.SetDynamicTableCapacity(dynamic_table_capacity);
QUICHE_DCHECK(success);
}
bool QpackEncoder::SetMaximumBlockedStreams(uint64_t maximum_blocked_streams) {
if (maximum_blocked_streams < maximum_blocked_streams_) {
return false;
}
maximum_blocked_streams_ = maximum_blocked_streams;
return true;
}
void QpackEncoder::OnInsertCountIncrement(uint64_t increment) {
if (increment == 0) {
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_INVALID_ZERO_INCREMENT,
"Invalid increment value 0.");
return;
}
if (!blocking_manager_.OnInsertCountIncrement(increment)) {
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_INCREMENT_OVERFLOW,
"Insert Count Increment instruction causes overflow.");
}
if (blocking_manager_.known_received_count() >
header_table_.inserted_entry_count()) {
OnErrorDetected(QUIC_QPACK_DECODER_STREAM_IMPOSSIBLE_INSERT_COUNT,
absl::StrCat("Increment value ", increment,
" raises known received count to ",
blocking_manager_.known_received_count(),
" exceeding inserted entry count ",
header_table_.inserted_entry_count()));
}
}
void QpackEncoder::OnHeaderAcknowledgement(QuicStreamId stream_id) {
if (!blocking_manager_.OnHeaderAcknowledgement(stream_id)) {
OnErrorDetected(
QUIC_QPACK_DECODER_STREAM_INCORRECT_ACKNOWLEDGEMENT,
absl::StrCat("Header Acknowledgement received for stream ", stream_id,
" with no outstanding header blocks."));
}
}
void QpackEncoder::OnStreamCancellation(QuicStreamId stream_id) {
blocking_manager_.OnStreamCancellation(stream_id);
}
void QpackEncoder::OnErrorDetected(QuicErrorCode error_code,
absl::string_view error_message) {
decoder_stream_error_delegate_->OnDecoderStreamError(error_code,
error_message);
}
} | #include "quiche/quic/core/qpack/qpack_encoder.h"
#include <limits>
#include <string>
#include "absl/strings/escaping.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/qpack/qpack_instruction_encoder.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_test.h"
#include "quiche/quic/test_tools/qpack/qpack_encoder_peer.h"
#include "quiche/quic/test_tools/qpack/qpack_test_utils.h"
using ::testing::_;
using ::testing::Eq;
using ::testing::Return;
using ::testing::StrictMock;
namespace quic {
namespace test {
namespace {
constexpr uint64_t kTooManyBytesBuffered = 1024 * 1024;
std::string PrintToString(const testing::TestParamInfo<HuffmanEncoding>& info) {
switch (info.param) {
case HuffmanEncoding::kEnabled:
return "HuffmanEnabled";
case HuffmanEncoding::kDisabled:
return "HuffmanDisabled";
}
QUICHE_NOTREACHED();
return "InvalidValue";
}
class MockDecoderStreamErrorDelegate
: public QpackEncoder::DecoderStreamErrorDelegate {
public:
~MockDecoderStreamErrorDelegate() override = default;
MOCK_METHOD(void, OnDecoderStreamError,
(QuicErrorCode error_code, absl::string_view error_message),
(override));
};
class QpackEncoderTest : public QuicTestWithParam<HuffmanEncoding> {
protected:
QpackEncoderTest()
: huffman_encoding_(GetParam()),
encoder_(&decoder_stream_error_delegate_, huffman_encoding_),
encoder_stream_sent_byte_count_(0) {
encoder_.set_qpack_stream_sender_delegate(&encoder_stream_sender_delegate_);
encoder_.SetMaximumBlockedStreams(1);
}
~QpackEncoderTest() override = default;
bool HuffmanEnabled() const {
return huffman_encoding_ == HuffmanEncoding::kEnabled;
}
std::string Encode(const spdy::Http2HeaderBlock& header_list) {
return encoder_.EncodeHeaderList( 1, header_list,
&encoder_stream_sent_byte_count_);
}
const HuffmanEncoding huffman_encoding_;
StrictMock<MockDecoderStreamErrorDelegate> decoder_stream_error_delegate_;
StrictMock<MockQpackStreamSenderDelegate> encoder_stream_sender_delegate_;
QpackEncoder encoder_;
QuicByteCount encoder_stream_sent_byte_count_;
};
INSTANTIATE_TEST_SUITE_P(HuffmanEncoding, QpackEncoderTest,
::testing::ValuesIn({HuffmanEncoding::kEnabled,
HuffmanEncoding::kDisabled}),
PrintToString);
TEST_P(QpackEncoderTest, Empty) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
std::string output = Encode(header_list);
std::string expected_output;
ASSERT_TRUE(absl::HexStringToBytes("0000", &expected_output));
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, EmptyName) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list[""] = "foo";
std::string output = Encode(header_list);
std::string expected_output;
if (HuffmanEnabled()) {
ASSERT_TRUE(absl::HexStringToBytes("0000208294e7", &expected_output));
} else {
ASSERT_TRUE(absl::HexStringToBytes("00002003666f6f", &expected_output));
}
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, EmptyValue) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list["foo"] = "";
std::string output = Encode(header_list);
std::string expected_output;
if (HuffmanEnabled()) {
ASSERT_TRUE(absl::HexStringToBytes("00002a94e700", &expected_output));
} else {
ASSERT_TRUE(absl::HexStringToBytes("000023666f6f00", &expected_output));
}
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, EmptyNameAndValue) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list[""] = "";
std::string output = Encode(header_list);
std::string expected_output;
ASSERT_TRUE(absl::HexStringToBytes("00002000", &expected_output));
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, Simple) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list["foo"] = "bar";
std::string output = Encode(header_list);
std::string expected_output;
if (HuffmanEnabled()) {
ASSERT_TRUE(absl::HexStringToBytes("00002a94e703626172", &expected_output));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("000023666f6f03626172", &expected_output));
}
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, Multiple) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list["foo"] = "bar";
header_list["ZZZZZZZ"] = std::string(127, 'Z');
std::string output = Encode(header_list);
std::string expected_output_hex;
if (HuffmanEnabled()) {
expected_output_hex =
"0000"
"2a94e703626172";
} else {
expected_output_hex =
"0000"
"23666f6f03626172";
}
expected_output_hex +=
"27005a5a5a5a5a5a5a"
"7f005a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a"
"5a5a5a5a5a5a5a5a5a";
std::string expected_output;
ASSERT_TRUE(absl::HexStringToBytes(expected_output_hex, &expected_output));
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, StaticTable) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
{
spdy::Http2HeaderBlock header_list;
header_list[":method"] = "GET";
header_list["accept-encoding"] = "gzip, deflate, br";
header_list["location"] = "";
std::string output = Encode(header_list);
std::string expected_output;
ASSERT_TRUE(absl::HexStringToBytes("0000d1dfcc", &expected_output));
EXPECT_EQ(expected_output, output);
}
{
spdy::Http2HeaderBlock header_list;
header_list[":method"] = "POST";
header_list["accept-encoding"] = "compress";
header_list["location"] = "foo";
std::string output = Encode(header_list);
std::string expected_output;
if (HuffmanEnabled()) {
ASSERT_TRUE(absl::HexStringToBytes("0000d45f108621e9aec2a11f5c8294e7",
&expected_output));
} else {
ASSERT_TRUE(absl::HexStringToBytes(
"0000d45f1008636f6d70726573735c03666f6f", &expected_output));
}
EXPECT_EQ(expected_output, output);
}
{
spdy::Http2HeaderBlock header_list;
header_list[":method"] = "TRACE";
header_list["accept-encoding"] = "";
std::string output = Encode(header_list);
std::string expected_output;
ASSERT_TRUE(
absl::HexStringToBytes("00005f000554524143455f1000", &expected_output));
EXPECT_EQ(expected_output, output);
}
}
TEST_P(QpackEncoderTest, DecoderStreamError) {
EXPECT_CALL(decoder_stream_error_delegate_,
OnDecoderStreamError(QUIC_QPACK_DECODER_STREAM_INTEGER_TOO_LARGE,
Eq("Encoded integer too large.")));
QpackEncoder encoder(&decoder_stream_error_delegate_, huffman_encoding_);
encoder.set_qpack_stream_sender_delegate(&encoder_stream_sender_delegate_);
std::string input;
ASSERT_TRUE(absl::HexStringToBytes("ffffffffffffffffffffff", &input));
encoder.decoder_stream_receiver()->Decode(input);
}
TEST_P(QpackEncoderTest, SplitAlongNullCharacter) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list;
header_list["foo"] = absl::string_view("bar\0bar\0baz", 11);
std::string output = Encode(header_list);
std::string expected_output;
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"2a94e703626172"
"2a94e703626172"
"2a94e70362617a",
&expected_output));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"23666f6f03626172"
"23666f6f03626172"
"23666f6f0362617a",
&expected_output));
}
EXPECT_EQ(expected_output, output);
}
TEST_P(QpackEncoderTest, ZeroInsertCountIncrement) {
EXPECT_CALL(
decoder_stream_error_delegate_,
OnDecoderStreamError(QUIC_QPACK_DECODER_STREAM_INVALID_ZERO_INCREMENT,
Eq("Invalid increment value 0.")));
encoder_.OnInsertCountIncrement(0);
}
TEST_P(QpackEncoderTest, TooLargeInsertCountIncrement) {
EXPECT_CALL(
decoder_stream_error_delegate_,
OnDecoderStreamError(QUIC_QPACK_DECODER_STREAM_IMPOSSIBLE_INSERT_COUNT,
Eq("Increment value 1 raises known received count "
"to 1 exceeding inserted entry count 0")));
encoder_.OnInsertCountIncrement(1);
}
TEST_P(QpackEncoderTest, InsertCountIncrementOverflow) {
QpackEncoderHeaderTable* header_table =
QpackEncoderPeer::header_table(&encoder_);
header_table->SetMaximumDynamicTableCapacity(4096);
header_table->SetDynamicTableCapacity(4096);
header_table->InsertEntry("foo", "bar");
encoder_.OnInsertCountIncrement(1);
EXPECT_CALL(decoder_stream_error_delegate_,
OnDecoderStreamError(
QUIC_QPACK_DECODER_STREAM_INCREMENT_OVERFLOW,
Eq("Insert Count Increment instruction causes overflow.")));
encoder_.OnInsertCountIncrement(std::numeric_limits<uint64_t>::max());
}
TEST_P(QpackEncoderTest, InvalidHeaderAcknowledgement) {
EXPECT_CALL(
decoder_stream_error_delegate_,
OnDecoderStreamError(QUIC_QPACK_DECODER_STREAM_INCORRECT_ACKNOWLEDGEMENT,
Eq("Header Acknowledgement received for stream 0 "
"with no outstanding header blocks.")));
encoder_.OnHeaderAcknowledgement( 0);
}
TEST_P(QpackEncoderTest, DynamicTable) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
encoder_.SetMaximumBlockedStreams(1);
encoder_.SetMaximumDynamicTableCapacity(4096);
encoder_.SetDynamicTableCapacity(4096);
spdy::Http2HeaderBlock header_list;
header_list["foo"] = "bar";
header_list.AppendValueOrAddHeader("foo",
"baz");
header_list["cookie"] = "baz";
std::string set_dyanamic_table_capacity;
ASSERT_TRUE(absl::HexStringToBytes("3fe11f", &set_dyanamic_table_capacity));
std::string insert_entries_hex;
if (HuffmanEnabled()) {
insert_entries_hex =
"62"
"94e7";
} else {
insert_entries_hex =
"43"
"666f6f";
}
insert_entries_hex +=
"03626172"
"80"
"0362617a"
"c5"
"0362617a";
std::string insert_entries;
ASSERT_TRUE(absl::HexStringToBytes(insert_entries_hex, &insert_entries));
EXPECT_CALL(encoder_stream_sender_delegate_,
WriteStreamData(Eq(
absl::StrCat(set_dyanamic_table_capacity, insert_entries))));
std::string expected_output;
ASSERT_TRUE(absl::HexStringToBytes(
"0400"
"828180",
&expected_output));
EXPECT_EQ(expected_output, Encode(header_list));
EXPECT_EQ(insert_entries.size(), encoder_stream_sent_byte_count_);
}
TEST_P(QpackEncoderTest, SmallDynamicTable) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
encoder_.SetMaximumBlockedStreams(1);
encoder_.SetMaximumDynamicTableCapacity(QpackEntry::Size("foo", "bar"));
encoder_.SetDynamicTableCapacity(QpackEntry::Size("foo", "bar"));
spdy::Http2HeaderBlock header_list;
header_list["foo"] = "bar";
header_list.AppendValueOrAddHeader("foo",
"baz");
header_list["cookie"] = "baz";
header_list["bar"] = "baz";
std::string set_dyanamic_table_capacity;
ASSERT_TRUE(absl::HexStringToBytes("3f07", &set_dyanamic_table_capacity));
std::string insert_entry;
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("62"
"94e7"
"03626172",
&insert_entry));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("43"
"666f6f"
"03626172",
&insert_entry));
}
EXPECT_CALL(encoder_stream_sender_delegate_,
WriteStreamData(
Eq(absl::StrCat(set_dyanamic_table_capacity, insert_entry))));
std::string expected_output;
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80"
"40"
"0362617a"
"55"
"0362617a"
"23626172"
"0362617a",
&expected_output));
EXPECT_EQ(expected_output, Encode(header_list));
EXPECT_EQ(insert_entry.size(), encoder_stream_sent_byte_count_);
}
TEST_P(QpackEncoderTest, BlockedStream) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
encoder_.SetMaximumBlockedStreams(1);
encoder_.SetMaximumDynamicTableCapacity(4096);
encoder_.SetDynamicTableCapacity(4096);
spdy::Http2HeaderBlock header_list1;
header_list1["foo"] = "bar";
std::string set_dyanamic_table_capacity;
ASSERT_TRUE(absl::HexStringToBytes("3fe11f", &set_dyanamic_table_capacity));
std::string insert_entry1;
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("62"
"94e7"
"03626172",
&insert_entry1));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("43"
"666f6f"
"03626172",
&insert_entry1));
}
EXPECT_CALL(encoder_stream_sender_delegate_,
WriteStreamData(Eq(
absl::StrCat(set_dyanamic_table_capacity, insert_entry1))));
std::string expected_output;
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80",
&expected_output));
EXPECT_EQ(expected_output,
encoder_.EncodeHeaderList( 1, header_list1,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(insert_entry1.size(), encoder_stream_sent_byte_count_);
spdy::Http2HeaderBlock header_list2;
header_list2["foo"] = "bar";
header_list2.AppendValueOrAddHeader("foo",
"baz");
header_list2["cookie"] = "baz";
header_list2["bar"] = "baz";
std::string entries;
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"2a94e7"
"03626172"
"2a94e7"
"0362617a"
"55"
"0362617a"
"23626172"
"0362617a",
&entries));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"23666f6f"
"03626172"
"23666f6f"
"0362617a"
"55"
"0362617a"
"23626172"
"0362617a",
&entries));
}
EXPECT_EQ(entries,
encoder_.EncodeHeaderList( 2, header_list2,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(0u, encoder_stream_sent_byte_count_);
encoder_.OnInsertCountIncrement(1);
std::string insert_entries;
ASSERT_TRUE(absl::HexStringToBytes(
"80"
"0362617a"
"c5"
"0362617a"
"43"
"626172"
"0362617a",
&insert_entries));
EXPECT_CALL(encoder_stream_sender_delegate_,
WriteStreamData(Eq(insert_entries)));
ASSERT_TRUE(
absl::HexStringToBytes("0500"
"83828180",
&expected_output));
EXPECT_EQ(expected_output,
encoder_.EncodeHeaderList( 3, header_list2,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(insert_entries.size(), encoder_stream_sent_byte_count_);
std::string expected2;
if (GetQuicReloadableFlag(quic_better_qpack_compression)) {
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80"
"2a94e7"
"0362617a"
"55"
"0362617a"
"23626172"
"0362617a",
&expected2));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80"
"23666f6f"
"0362617a"
"55"
"0362617a"
"23626172"
"0362617a",
&expected2));
}
} else {
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80"
"2a94e7"
"0362617a"
"2c21cfd4c5"
"0362617a"
"23626172"
"0362617a",
&expected2));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("0200"
"80"
"23666f6f"
"0362617a"
"26636f6f6b6965"
"0362617a"
"23626172"
"0362617a",
&expected2));
}
}
EXPECT_EQ(expected2,
encoder_.EncodeHeaderList( 4, header_list2,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(0u, encoder_stream_sent_byte_count_);
encoder_.OnInsertCountIncrement(2);
std::string expected3;
ASSERT_TRUE(
absl::HexStringToBytes("0400"
"828180"
"23626172"
"0362617a",
&expected3));
EXPECT_EQ(expected3,
encoder_.EncodeHeaderList( 5, header_list2,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(0u, encoder_stream_sent_byte_count_);
encoder_.OnHeaderAcknowledgement(3);
std::string expected4;
ASSERT_TRUE(
absl::HexStringToBytes("0500"
"83828180",
&expected4));
EXPECT_EQ(expected4,
encoder_.EncodeHeaderList( 6, header_list2,
&encoder_stream_sent_byte_count_));
EXPECT_EQ(0u, encoder_stream_sent_byte_count_);
}
TEST_P(QpackEncoderTest, Draining) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list1;
header_list1["one"] = "foo";
header_list1["two"] = "foo";
header_list1["three"] = "foo";
header_list1["four"] = "foo";
header_list1["five"] = "foo";
header_list1["six"] = "foo";
header_list1["seven"] = "foo";
header_list1["eight"] = "foo";
header_list1["nine"] = "foo";
header_list1["ten"] = "foo";
uint64_t maximum_dynamic_table_capacity = 0;
for (const auto& header_field : header_list1) {
maximum_dynamic_table_capacity +=
QpackEntry::Size(header_field.first, header_field.second);
}
maximum_dynamic_table_capacity += QpackEntry::Size("one", "foo");
encoder_.SetMaximumDynamicTableCapacity(maximum_dynamic_table_capacity);
encoder_.SetDynamicTableCapacity(maximum_dynamic_table_capacity);
EXPECT_CALL(encoder_stream_sender_delegate_, WriteStreamData(_));
std::string expected_output;
ASSERT_TRUE(
absl::HexStringToBytes("0b00"
"89888786858483828180",
&expected_output));
EXPECT_EQ(expected_output, Encode(header_list1));
spdy::Http2HeaderBlock header_list2;
header_list2["one"] = "foo";
ASSERT_TRUE(absl::HexStringToBytes("09", &expected_output));
EXPECT_CALL(encoder_stream_sender_delegate_,
WriteStreamData(Eq(expected_output)));
ASSERT_TRUE(
absl::HexStringToBytes("0c00"
"80",
&expected_output));
EXPECT_EQ(expected_output, Encode(header_list2));
spdy::Http2HeaderBlock header_list3;
header_list3.AppendValueOrAddHeader("two", "foo");
header_list3.AppendValueOrAddHeader("two", "bar");
std::string entries =
"0000"
"2374776f";
if (HuffmanEnabled()) {
entries += "8294e7";
} else {
entries += "03666f6f";
}
entries +=
"2374776f"
"03626172";
ASSERT_TRUE(absl::HexStringToBytes(entries, &expected_output));
EXPECT_EQ(expected_output, Encode(header_list3));
}
TEST_P(QpackEncoderTest, DynamicTableCapacityLessThanMaximum) {
encoder_.SetMaximumDynamicTableCapacity(1024);
encoder_.SetDynamicTableCapacity(30);
QpackEncoderHeaderTable* header_table =
QpackEncoderPeer::header_table(&encoder_);
EXPECT_EQ(1024u, header_table->maximum_dynamic_table_capacity());
EXPECT_EQ(30u, header_table->dynamic_table_capacity());
}
TEST_P(QpackEncoderTest, EncoderStreamWritesDisallowedThenAllowed) {
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(kTooManyBytesBuffered));
encoder_.SetMaximumBlockedStreams(1);
encoder_.SetMaximumDynamicTableCapacity(4096);
encoder_.SetDynamicTableCapacity(4096);
spdy::Http2HeaderBlock header_list1;
header_list1["foo"] = "bar";
header_list1.AppendValueOrAddHeader("foo", "baz");
header_list1["cookie"] = "baz";
std::string entries;
if (HuffmanEnabled()) {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"2a94e7"
"03626172"
"2a94e7"
"0362617a"
"55"
"0362617a",
&entries));
} else {
ASSERT_TRUE(
absl::HexStringToBytes("0000"
"23666f6f"
"03626172"
"23666f6f"
"0362617a"
"55"
"0362617a",
&entries));
}
EXPECT_EQ(entries, Encode(header_list1));
EXPECT_EQ(0u, encoder_stream_sent_byte_count_);
::testing::Mock::VerifyAndClearExpectations(&encoder_stream_sender_delegate_);
EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
.WillRepeatedly(Return(0));
spdy::Http2HeaderBlock header_list2;
header_list2["foo"] = "bar";
header_list2.AppendValueOrAddHeader("foo",
"baz");
header_list2["cookie"] = "baz";
std::string set_dyanamic_table_capacity;
ASSERT_TRUE(absl::HexStringToBytes("3fe11f", &set_dyanamic_table_capacity));
std::string insert_entries_hex;
if (HuffmanEnabled()) {
insert_entries_hex =
"62"
"94e7";
} else {
insert_entries_hex =
"43"
"666f6f";
}
insert_entries_hex +=
"03626172"
"80"
"0362617a"
"c5"
"0362617a";
std::string insert_entries;
ASSERT_TRUE(absl::HexStringToBytes(insert_entries_hex, &insert |