text: // +build solaris,cgo
  
  package daemon
  
  import (
  	"fmt"
  	"net"
  	"strconv"
  
  	"github.com/Sirupsen/logrus"
  	"github.com/docker/docker/api/types"
  	containertypes "github.com/docker/docker/api/types/container"
  	"github.com/docker/docker/container"
  	"github.com/docker/docker/image"
  	"github.com/docker/docker/layer"
  	"github.com/docker/docker/pkg/idtools"
  	"github.com/docker/docker/pkg/parsers/kernel"
  	"github.com/docker/docker/pkg/sysinfo"
  	refstore "github.com/docker/docker/reference"
  	"github.com/docker/libnetwork"
  	nwconfig "github.com/docker/libnetwork/config"
  	"github.com/docker/libnetwork/drivers/solaris/bridge"
  	"github.com/docker/libnetwork/netlabel"
  	"github.com/docker/libnetwork/netutils"
  	lntypes "github.com/docker/libnetwork/types"
  	"github.com/opencontainers/runc/libcontainer/label"
  	"github.com/opencontainers/runtime-spec/specs-go"
  	"github.com/pkg/errors"
  )
  
  //#include <zone.h>
  import "C"
  
  const (
  	defaultVirtualSwitch = "Virtual Switch"
  	platformSupported    = true
  	solarisMinCPUShares  = 1
  	solarisMaxCPUShares  = 65535
  )
  
  func getMemoryResources(config containertypes.Resources) specs.CappedMemory {
  	memory := specs.CappedMemory{}
  
  	if config.Memory > 0 {
  		memory.Physical = strconv.FormatInt(config.Memory, 10)
  	}
  
  	if config.MemorySwap != 0 {
  		memory.Swap = strconv.FormatInt(config.MemorySwap, 10)
  	}
  
  	return memory
  }
  
  func getCPUResources(config containertypes.Resources) specs.CappedCPU {
  	cpu := specs.CappedCPU{}
  
  	if config.CpusetCpus != "" {
  		cpu.Ncpus = config.CpusetCpus
  	}
  
  	return cpu
  }
  
  func (daemon *Daemon) cleanupMountsByID(id string) error {
  	return nil
  }
  
  func (daemon *Daemon) parseSecurityOpt(container *container.Container, hostConfig *containertypes.HostConfig) error {
  	return parseSecurityOpt(container, hostConfig)
  }
  
  func parseSecurityOpt(container *container.Container, config *containertypes.HostConfig) error {
  	//Since config.SecurityOpt is specifically defined as a "List of string values to
  	//customize labels for MLs systems, such as SELinux"
  	//until we figure out how to map to Trusted Extensions
  	//this is being disabled for now on Solaris
  	var (
  		labelOpts []string
  		err       error
  	)
  
  	if len(config.SecurityOpt) > 0 {
  		return errors.New("Security options are not supported on Solaris")
  	}
  
  	container.ProcessLabel, container.MountLabel, err = label.InitLabels(labelOpts)
  	return err
  }
  
  func setupRemappedRoot(config *Config) ([]idtools.IDMap, []idtools.IDMap, error) {
  	return nil, nil, nil
  }
  
  func setupDaemonRoot(config *Config, rootDir string, rootUID, rootGID int) error {
  	return nil
  }
  
  func (daemon *Daemon) getLayerInit() func(string) error {
  	return nil
  }
  
  func checkKernel() error {
  	// solaris can rely upon checkSystem() below, we don't skew kernel versions
  	return nil
  }
  
  func (daemon *Daemon) getCgroupDriver() string {
  	return ""
  }
  
  func (daemon *Daemon) adaptContainerSettings(hostConfig *containertypes.HostConfig, adjustCPUShares bool) error {
  	if hostConfig.CPUShares < 0 {
  		logrus.Warnf("Changing requested CPUShares of %d to minimum allowed of %d", hostConfig.CPUShares, solarisMinCPUShares)
  		hostConfig.CPUShares = solarisMinCPUShares
  	} else if hostConfig.CPUShares > solarisMaxCPUShares {
  		logrus.Warnf("Changing requested CPUShares of %d to maximum allowed of %d", hostConfig.CPUShares, solarisMaxCPUShares)
  		hostConfig.CPUShares = solarisMaxCPUShares
  	}
  
  	if hostConfig.Memory > 0 && hostConfig.MemorySwap == 0 {
  		// By default, MemorySwap is set to twice the size of Memory.
  		hostConfig.MemorySwap = hostConfig.Memory * 2
  	}
  
  	if hostConfig.ShmSize != 0 {
  		hostConfig.ShmSize = container.DefaultSHMSize
  	}
  	if hostConfig.OomKillDisable == nil {
  		defaultOomKillDisable := false
  		hostConfig.OomKillDisable = &defaultOomKillDisable
  	}
  
  	return nil
  }
  
  // UsingSystemd returns true if cli option includes native.cgroupdriver=systemd
  func UsingSystemd(config *Config) bool {
  	return false
  }
  
  // verifyPlatformContainerSettings performs platform-specific validation of the
  // hostconfig and config structures.
  func verifyPlatformContainerSettings(daemon *Daemon, hostConfig *containertypes.HostConfig, config *containertypes.Config, update bool) ([]string, error) {
  	warnings := []string{}
  	sysInfo := sysinfo.New(true)
  	// NOTE: We do not enforce a minimum value for swap limits for zones on Solaris and
  	// therefore we will not do that for Docker container either.
  	if hostConfig.Memory > 0 && !sysInfo.MemoryLimit {
  		warnings = append(warnings, "Your kernel does not support memory limit capabilities. Limitation discarded.")
  		logrus.Warnf("Your kernel does not support memory limit capabilities. Limitation discarded.")
  		hostConfig.Memory = 0
  		hostConfig.MemorySwap = -1
  	}
  	if hostConfig.Memory > 0 && hostConfig.MemorySwap != -1 && !sysInfo.SwapLimit {
  		warnings = append(warnings, "Your kernel does not support swap limit capabilities, memory limited without swap.")
  		logrus.Warnf("Your kernel does not support swap limit capabilities, memory limited without swap.")
  		hostConfig.MemorySwap = -1
  	}
  	if hostConfig.Memory > 0 && hostConfig.MemorySwap > 0 && hostConfig.MemorySwap < hostConfig.Memory {
  		return warnings, fmt.Errorf("Minimum memoryswap limit should be larger than memory limit, see usage.")
  	}
  	// Solaris NOTE: We allow and encourage setting the swap without setting the memory limit.
  
  	if hostConfig.MemorySwappiness != nil && *hostConfig.MemorySwappiness != -1 && !sysInfo.MemorySwappiness {
  		warnings = append(warnings, "Your kernel does not support memory swappiness capabilities, memory swappiness discarded.")
  		logrus.Warnf("Your kernel does not support memory swappiness capabilities, memory swappiness discarded.")
  		hostConfig.MemorySwappiness = nil
  	}
  	if hostConfig.MemoryReservation > 0 && !sysInfo.MemoryReservation {
  		warnings = append(warnings, "Your kernel does not support memory soft limit capabilities. Limitation discarded.")
  		logrus.Warnf("Your kernel does not support memory soft limit capabilities. Limitation discarded.")
  		hostConfig.MemoryReservation = 0
  	}
  	if hostConfig.Memory > 0 && hostConfig.MemoryReservation > 0 && hostConfig.Memory < hostConfig.MemoryReservation {
  		return warnings, fmt.Errorf("Minimum memory limit should be larger than memory reservation limit, see usage.")
  	}
  	if hostConfig.KernelMemory > 0 && !sysInfo.KernelMemory {
  		warnings = append(warnings, "Your kernel does not support kernel memory limit capabilities. Limitation discarded.")
  		logrus.Warnf("Your kernel does not support kernel memory limit capabilities. Limitation discarded.")
  		hostConfig.KernelMemory = 0
  	}
  	if hostConfig.CPUShares != 0 && !sysInfo.CPUShares {
  		warnings = append(warnings, "Your kernel does not support CPU shares. Shares discarded.")
  		logrus.Warnf("Your kernel does not support CPU shares. Shares discarded.")
  		hostConfig.CPUShares = 0
  	}
  	if hostConfig.CPUShares < 0 {
  		warnings = append(warnings, "Invalid CPUShares value. Must be positive. Discarding.")
  		logrus.Warnf("Invalid CPUShares value. Must be positive. Discarding.")
  		hostConfig.CPUQuota = 0
  	}
  	if hostConfig.CPUShares > 0 && !sysinfo.IsCPUSharesAvailable() {
  		warnings = append(warnings, "Global zone default scheduling class not FSS. Discarding shares.")
  		logrus.Warnf("Global zone default scheduling class not FSS. Discarding shares.")
  		hostConfig.CPUShares = 0
  	}
  
  	// Solaris NOTE: Linux does not do negative checking for CPUShares and Quota here. But it makes sense to.
  	if hostConfig.CPUPeriod > 0 && !sysInfo.CPUCfsPeriod {
  		warnings = append(warnings, "Your kernel does not support CPU cfs period. Period discarded.")
  		logrus.Warnf("Your kernel does not support CPU cfs period. Period discarded.")
  		if hostConfig.CPUQuota > 0 {
  			warnings = append(warnings, "Quota will be applied on default period, not period specified.")
  			logrus.Warnf("Quota will be applied on default period, not period specified.")
  		}
  		hostConfig.CPUPeriod = 0
  	}
  	if hostConfig.CPUQuota != 0 && !sysInfo.CPUCfsQuota {
  		warnings = append(warnings, "Your kernel does not support CPU cfs quota. Quota discarded.")
  		logrus.Warnf("Your kernel does not support CPU cfs quota. Quota discarded.")
  		hostConfig.CPUQuota = 0
  	}
  	if hostConfig.CPUQuota < 0 {
  		warnings = append(warnings, "Invalid CPUQuota value. Must be positive. Discarding.")
  		logrus.Warnf("Invalid CPUQuota value. Must be positive. Discarding.")
  		hostConfig.CPUQuota = 0
  	}
  	if (hostConfig.CpusetCpus != "" || hostConfig.CpusetMems != "") && !sysInfo.Cpuset {
  		warnings = append(warnings, "Your kernel does not support cpuset. Cpuset discarded.")
  		logrus.Warnf("Your kernel does not support cpuset. Cpuset discarded.")
  		hostConfig.CpusetCpus = ""
  		hostConfig.CpusetMems = ""
  	}
  	cpusAvailable, err := sysInfo.IsCpusetCpusAvailable(hostConfig.CpusetCpus)
  	if err != nil {
  		return warnings, fmt.Errorf("Invalid value %s for cpuset cpus.", hostConfig.CpusetCpus)
  	}
  	if !cpusAvailable {
  		return warnings, fmt.Errorf("Requested CPUs are not available - requested %s, available: %s.", hostConfig.CpusetCpus, sysInfo.Cpus)
  	}
  	memsAvailable, err := sysInfo.IsCpusetMemsAvailable(hostConfig.CpusetMems)
  	if err != nil {
  		return warnings, fmt.Errorf("Invalid value %s for cpuset mems.", hostConfig.CpusetMems)
  	}
  	if !memsAvailable {
  		return warnings, fmt.Errorf("Requested memory nodes are not available - requested %s, available: %s.", hostConfig.CpusetMems, sysInfo.Mems)
  	}
  	if hostConfig.BlkioWeight > 0 && !sysInfo.BlkioWeight {
  		warnings = append(warnings, "Your kernel does not support Block I/O weight. Weight discarded.")
  		logrus.Warnf("Your kernel does not support Block I/O weight. Weight discarded.")
  		hostConfig.BlkioWeight = 0
  	}
  	if hostConfig.OomKillDisable != nil && !sysInfo.OomKillDisable {
  		*hostConfig.OomKillDisable = false
  		// Don't warn; this is the default setting but only applicable to Linux
  	}
  
  	if sysInfo.IPv4ForwardingDisabled {
  		warnings = append(warnings, "IPv4 forwarding is disabled. Networking will not work.")
  		logrus.Warnf("IPv4 forwarding is disabled. Networking will not work")
  	}
  
  	// Solaris NOTE: We do not allow setting Linux specific options, so check and warn for all of them.
  
  	if hostConfig.CapAdd != nil || hostConfig.CapDrop != nil {
  		warnings = append(warnings, "Adding or dropping kernel capabilities unsupported on Solaris.Discarding capabilities lists.")
  		logrus.Warnf("Adding or dropping kernel capabilities unsupported on Solaris.Discarding capabilities lists.")
  		hostConfig.CapAdd = nil
  		hostConfig.CapDrop = nil
  	}
  
  	if hostConfig.GroupAdd != nil {
  		warnings = append(warnings, "Additional groups unsupported on Solaris.Discarding groups lists.")
  		logrus.Warnf("Additional groups unsupported on Solaris.Discarding groups lists.")
  		hostConfig.GroupAdd = nil
  	}
  
  	if hostConfig.IpcMode != "" {
  		warnings = append(warnings, "IPC namespace assignment unsupported on Solaris.Discarding IPC setting.")
  		logrus.Warnf("IPC namespace assignment unsupported on Solaris.Discarding IPC setting.")
  		hostConfig.IpcMode = ""
  	}
  
  	if hostConfig.PidMode != "" {
  		warnings = append(warnings, "PID namespace setting  unsupported on Solaris. Running container in host PID namespace.")
  		logrus.Warnf("PID namespace setting  unsupported on Solaris. Running container in host PID namespace.")
  		hostConfig.PidMode = ""
  	}
  
  	if hostConfig.Privileged {
  		warnings = append(warnings, "Privileged mode unsupported on Solaris. Discarding privileged mode setting.")
  		logrus.Warnf("Privileged mode unsupported on Solaris. Discarding privileged mode setting.")
  		hostConfig.Privileged = false
  	}
  
  	if hostConfig.UTSMode != "" {
  		warnings = append(warnings, "UTS namespace assignment unsupported on Solaris.Discarding UTS setting.")
  		logrus.Warnf("UTS namespace assignment unsupported on Solaris.Discarding UTS setting.")
  		hostConfig.UTSMode = ""
  	}
  
  	if hostConfig.CgroupParent != "" {
  		warnings = append(warnings, "Specifying Cgroup parent unsupported on Solaris. Discarding cgroup parent setting.")
  		logrus.Warnf("Specifying Cgroup parent unsupported on Solaris. Discarding cgroup parent setting.")
  		hostConfig.CgroupParent = ""
  	}
  
  	if hostConfig.Ulimits != nil {
  		warnings = append(warnings, "Specifying ulimits unsupported on Solaris. Discarding ulimits setting.")
  		logrus.Warnf("Specifying ulimits unsupported on Solaris. Discarding ulimits setting.")
  		hostConfig.Ulimits = nil
  	}
  
  	return warnings, nil
  }
  
  // reloadPlatform updates configuration with platform specific options
  // and updates the passed attributes
  func (daemon *Daemon) reloadPlatform(config *Config, attributes map[string]string) {
  }
  
  // verifyDaemonSettings performs validation of daemon config struct
  func verifyDaemonSettings(config *Config) error {
  
  	if config.DefaultRuntime == "" {
  		config.DefaultRuntime = stockRuntimeName
  	}
  	if config.Runtimes == nil {
  		config.Runtimes = make(map[string]types.Runtime)
  	}
  	stockRuntimeOpts := []string{}
  	config.Runtimes[stockRuntimeName] = types.Runtime{Path: DefaultRuntimeBinary, Args: stockRuntimeOpts}
  
  	// checkSystem validates platform-specific requirements
  	return nil
  }
  
  func checkSystem() error {
  	// check OS version for compatibility, ensure running in global zone
  	var err error
  	var id C.zoneid_t
  
  	if id, err = C.getzoneid(); err != nil {
  		return fmt.Errorf("Exiting. Error getting zone id: %+v", err)
  	}
  	if int(id) != 0 {
  		return fmt.Errorf("Exiting because the Docker daemon is not running in the global zone")
  	}
  
  	v, err := kernel.GetKernelVersion()
  	if kernel.CompareKernelVersion(*v, kernel.VersionInfo{Kernel: 5, Major: 12, Minor: 0}) < 0 {
  		return fmt.Errorf("Your Solaris kernel version: %s doesn't support Docker. Please upgrade to 5.12.0", v.String())
  	}
  	return err
  }
  
  // configureMaxThreads sets the Go runtime max threads threshold
  // which is 90% of the kernel setting from /proc/sys/kernel/threads-max
  func configureMaxThreads(config *Config) error {
  	return nil
  }
  
  // configureKernelSecuritySupport configures and validate security support for the kernel
  func configureKernelSecuritySupport(config *Config, driverName string) error {
  	return nil
  }
  
  func (daemon *Daemon) initNetworkController(config *Config, activeSandboxes map[string]interface{}) (libnetwork.NetworkController, error) {
  	netOptions, err := daemon.networkOptions(config, daemon.PluginStore, activeSandboxes)
  	if err != nil {
  		return nil, err
  	}
  
  	controller, err := libnetwork.New(netOptions...)
  	if err != nil {
  		return nil, fmt.Errorf("error obtaining controller instance: %v", err)
  	}
  
  	// Initialize default network on "null"
  	if _, err := controller.NewNetwork("null", "none", "", libnetwork.NetworkOptionPersist(false)); err != nil {
  		return nil, fmt.Errorf("Error creating default 'null' network: %v", err)
  	}
  
  	if !config.DisableBridge {
  		// Initialize default driver "bridge"
  		if err := initBridgeDriver(controller, config); err != nil {
  			return nil, err
  		}
  	}
  
  	return controller, nil
  }
  
  func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
  	if n, err := controller.NetworkByName("bridge"); err == nil {
  		if err = n.Delete(); err != nil {
  			return fmt.Errorf("could not delete the default bridge network: %v", err)
  		}
  	}
  
  	bridgeName := bridge.DefaultBridgeName
  	if config.bridgeConfig.Iface != "" {
  		bridgeName = config.bridgeConfig.Iface
  	}
  	netOption := map[string]string{
  		bridge.BridgeName:    bridgeName,
  		bridge.DefaultBridge: strconv.FormatBool(true),
  		netlabel.DriverMTU:   strconv.Itoa(config.Mtu),
  		bridge.EnableICC:     strconv.FormatBool(config.bridgeConfig.InterContainerCommunication),
  	}
  
  	// --ip processing
  	if config.bridgeConfig.DefaultIP != nil {
  		netOption[bridge.DefaultBindingIP] = config.bridgeConfig.DefaultIP.String()
  	}
  
  	var ipamV4Conf *libnetwork.IpamConf
  
  	ipamV4Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
  
  	nwList, _, err := netutils.ElectInterfaceAddresses(bridgeName)
  	if err != nil {
  		return errors.Wrap(err, "list bridge addresses failed")
  	}
  
  	nw := nwList[0]
  	if len(nwList) > 1 && config.bridgeConfig.FixedCIDR != "" {
  		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
  		if err != nil {
  			return errors.Wrap(err, "parse CIDR failed")
  		}
  		// Iterate through in case there are multiple addresses for the bridge
  		for _, entry := range nwList {
  			if fCIDR.Contains(entry.IP) {
  				nw = entry
  				break
  			}
  		}
  	}
  
  	ipamV4Conf.PreferredPool = lntypes.GetIPNetCanonical(nw).String()
  	hip, _ := lntypes.GetHostPartIP(nw.IP, nw.Mask)
  	if hip.IsGlobalUnicast() {
  		ipamV4Conf.Gateway = nw.IP.String()
  	}
  
  	if config.bridgeConfig.IP != "" {
  		ipamV4Conf.PreferredPool = config.bridgeConfig.IP
  		ip, _, err := net.ParseCIDR(config.bridgeConfig.IP)
  		if err != nil {
  			return err
  		}
  		ipamV4Conf.Gateway = ip.String()
  	} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
  		logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
  	}
  
  	if config.bridgeConfig.FixedCIDR != "" {
  		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
  		if err != nil {
  			return err
  		}
  
  		ipamV4Conf.SubPool = fCIDR.String()
  	}
  
  	if config.bridgeConfig.DefaultGatewayIPv4 != nil {
  		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.bridgeConfig.DefaultGatewayIPv4.String()
  	}
  
  	v4Conf := []*libnetwork.IpamConf{ipamV4Conf}
  	v6Conf := []*libnetwork.IpamConf{}
  
  	// Initialize default network on "bridge" with the same name
  	_, err = controller.NewNetwork("bridge", "bridge", "",
  		libnetwork.NetworkOptionDriverOpts(netOption),
  		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
  		libnetwork.NetworkOptionDeferIPv6Alloc(false))
  	if err != nil {
  		return fmt.Errorf("Error creating default 'bridge' network: %v", err)
  	}
  	return nil
  }
  
  // registerLinks sets up links between containers and writes the
  // configuration out for persistence.
  func (daemon *Daemon) registerLinks(container *container.Container, hostConfig *containertypes.HostConfig) error {
  	return nil
  }
  
  func (daemon *Daemon) cleanupMounts() error {
  	return nil
  }
  
  // conditionalMountOnStart is a platform specific helper function during the
  // container start to call mount.
  func (daemon *Daemon) conditionalMountOnStart(container *container.Container) error {
  	return daemon.Mount(container)
  }
  
  // conditionalUnmountOnCleanup is a platform specific helper function called
  // during the cleanup of a container to unmount.
  func (daemon *Daemon) conditionalUnmountOnCleanup(container *container.Container) error {
  	return daemon.Unmount(container)
  }
  
  func restoreCustomImage(is image.Store, ls layer.Store, rs refstore.Store) error {
  	// Solaris has no custom images to register
  	return nil
  }
  
  func driverOptions(config *Config) []nwconfig.Option {
  	return []nwconfig.Option{}
  }
  
  func (daemon *Daemon) stats(c *container.Container) (*types.StatsJSON, error) {
  	return nil, nil
  }
  
  // setDefaultIsolation determine the default isolation mode for the
  // daemon to run in. This is only applicable on Windows
  func (daemon *Daemon) setDefaultIsolation() error {
  	return nil
  }
  
  func rootFSToAPIType(rootfs *image.RootFS) types.RootFS {
  	return types.RootFS{}
  }
  
  func setupDaemonProcess(config *Config) error {
  	return nil
  }
  
  func (daemon *Daemon) setupSeccompProfile() error {
  	return nil
  }
  