delta/openvswitch.git/include/sparse/sys, branch master

socket-util: Introduce emulation and wrapper for recvmmsg().

2020-01-09T17:48:49+00:00

Not every system will have recvmmsg(), so introduce compatibility code
that will allow it to be used blindly from the rest of the tree.

This assumes that recvmmsg() and sendmmsg() are either both present or
both absent in system libraries and headers.

CC: Yi Yang 
Signed-off-by: Ben Pfaff

sparse: Support newer GCC/glibc versions.

2018-05-14T23:13:14+00:00

This fixes some "sparse" errors I encountered after upgrading.

Signed-off-by: Ben Pfaff 
Acked-by: Justin Pettit

sparse: Add guards to prevent FreeBSD-incompatible #include order.

2017-12-22T20:58:02+00:00

FreeBSD insists that  be included before  and
that  be included before .  This adds guards to
the "sparse" headers to yield a warning if this order is violated.  This
commit also adjusts the order of many #includes to suit this requirement.

Signed-off-by: Ben Pfaff 
Acked-by: Justin Pettit

sparse: Add missing protoype for sendmmsg.

2017-07-14T22:50:12+00:00

Reported-by: Joe Stringer 
Signed-off-by: Ben Pfaff 
Fixes: 00f5565c7eed ("socket-util: Fix recursion issue in sendmmsg")
Signed-off-by: Ben Pfaff 
Acked-by: Joe Stringer

socket-util: Support sendmmsg() regardless of platform.

2017-07-13T00:38:33+00:00

This will have its first user in an upcoming commit.

Signed-off-by: Ben Pfaff

netdev-linux: Read packet auxdata to obtain vlan_tid

2014-01-16T23:09:14+00:00

If VLAN acceleration is used when the kernel receives a packet
then the outer-most VLAN tag will not be present in the packet
when it is received by netdev-linux. Rather, it will be present
in auxdata.

This patch uses recvmsg() instead of recv() to read auxdata for
each packet and if the vlan_tid is set then it is added to the packet.

Adding the vlan_tid makes use of headroom available
in the buffer parameter of rx_recv.

Signed-off-by: Simon Horman 
Co-authored-by: Ben Pfaff 
Signed-off-by: Ben Pfaff

sparse: Include stddef.h to ensure NULL is defined.

2013-11-25T20:56:03+00:00

Include stddef.h in include/sparse/sys/socket.h to ensure
that NULL is defined and thus avoid the following sparse warning.

./include/sparse/sys/socket.h:74:15: error: undefined identifier 'NULL'

Signed-off-by: Simon Horman 
Signed-off-by: Ben Pfaff

lib/netdev-linux.c: Prevent receiving of sent packets

2013-06-13T21:43:29+00:00

Commit 796223f5 (netdev: Add new "struct netdev_rx" for capturing packets
from a netdev) refactored send and receive into separate netdevs.  As a
result, send and receive now use different socket descriptors (except for tap
interfaces which are treated specially).  An unintended side effect was that
all sent packets are looped back and received, which had previously been
avoided as the kernel specifically prevents this from happening on a single
socket descriptor.

To resolve the situation, a socket filter is added to the receive socket
so that it only accepts inbound packets.

Simon Horman co-discovered and initially reported this issue.

Signed-off-by: Murphy McCauley 
Signed-off-by: Ben Pfaff 
Tested-by: Simon Horman 
Reviewed-by: Simon Horman

socket-util: Add functions for sending fds over Unix domain sockets.

2012-07-18T17:29:21+00:00

These will be used in upcoming commits.

This commit also adds corresponding definitions to the "sparse" header,
so that sparse still works.

Signed-off-by: Ben Pfaff

Global replace of Nicira Networks.

2012-05-03T00:08:02+00:00

Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.

Feature #10593
Signed-off-by: Raju Subramanian 
Signed-off-by: Ben Pfaff