datapath: Fix buffer overrun in mask array realloc.

mask realloc copies elements from old array to new array. When
shrinking array it can go beyond allocated memory.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
meta-flow: Simplify handling of a variable number of registers.

At the time that Open vSwitch implemented registers, there was a high cost
to adding additional fields, so I wrote the code so that the number of
registers could be reduced at compile time.  Now, fields are cheaper
(though not free) and in the meantime I have never heard of anyone reducing
the number of registers.  Since I intend to add more code that would
require awkward "#if"s like this, I think that this is a good time to
simplify it by requiring FLOW_N_REGS to be fixed.  This commit does that.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
bitmap: Add new functions.

These will be used in an upcoming commit.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
Remove assumption that there are 64 or fewer fields.

An upcoming commit will increase the number of fields beyond 64.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
Fix two memory leaks.

Found by coverity.

Signed-off-by: yinpeijun <yinpeijun@huawei.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
ofproto-dpif-upcall: Fix sparse warnings.

Fixes these warnings from "sparse":

../ofproto/ofproto-dpif-upcall.c:761:1: warning: symbol 'free_upcall' was
    not declared. Should it be static?
../ofproto/ofproto-dpif-upcall.c:849:1: warning: symbol 'convert_upcall'
    was not declared. Should it be static?

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>
meta-flow: Add 64-bit registers.

These 64-bit registers are intended to conform with the OpenFlow 1.5
draft specification.

EXT-244.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
datapath-windows: Kernel module for HyperV.

The kernel switch extension has support for bridged back forwarding & tunneling
over VXLAN. There is no Netlink integration as it is still being worked out.

Co-Authored-By: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Co-Authored-By: Eitan Eliahu <eliahue@vmware.com>
Signed-off-by: Eitan Eliahu <eliahue@vmware.com>
Co-Authored-By: Guolin Yang <gyang@vmware.com>
Signed-off-by: Guolin Yang <gyang@vmware.com>
Co-Authored-By: Linda Sun <lsun@vmware.com>
Signed-off-by: Linda Sun <lsun@vmware.com>
Co-Authored-By: Nithin Raju <nithin@vmware.com>
Signed-off-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Saurabh Shah <ssaurabh@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
ovs-ofctl: Add --unixctl command line option.

This matches the option offered by some other Open vSwitch daemons.  I
intend to use it in tests in an upcoming commit.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>
connmgr: Demote service controllers too in ofconn_set_role().

Service controllers can set their roles, so it's necessary to demote them
to slaves if another controller becomes master.  Unfortunately the
'controllers' hmap only contains primary controllers, so this was omitted.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>
connmgr: Only send role status messages to OpenFlow 1.4+ controllers.

Only OpenFlow 1.4 and later support role status messages, but this code
tried to send them to all controllers, which caused an assertion failure.

Also, add tests to check that role status messages work, and that they
don't cause trouble with OF1.2.

Reported-by: Anup Khadka <khadka.py@gmail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>