net: vrf: Add support for sends to local broadcast address
authorDavid Ahern <dsahern@gmail.com>
Thu, 25 Jan 2018 03:37:37 +0000 (19:37 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 26 Jan 2018 02:51:03 +0000 (21:51 -0500)
commit1e19c4d689dc1e95bafd23ef68fbc0c6b9e05180
tree39cfbe673f5af3396ae5794f2463d6c3475137f5
parenta78e93661c5fd30b9e1dee464b2f62f966883ef7
net: vrf: Add support for sends to local broadcast address

Sukumar reported that sends to the local broadcast address
(255.255.255.255) are broken. Check for the address in vrf driver
and do not redirect to the VRF device - similar to multicast
packets.

With this change sockets can use SO_BINDTODEVICE to specify an
egress interface and receive responses. Note: the egress interface
can not be a VRF device but needs to be the enslaved device.

https://bugzilla.kernel.org/show_bug.cgi?id=198521

Reported-by: Sukumar Gopalakrishnan <sukumarg1973@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/vrf.c