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net: Use VRF device index for lookups on TX

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As with ingress use the index of VRF master device for route lookups on
egress. However, the oif should only be used to direct the lookups to a
specific table. Routes in the table are not based on the VRF device but
rather interfaces that are part of the VRF so do not consider the oif for
lookups within the table. The FLOWI_FLAG_VRFSRC is used to control this
latter part.

Signed-off-by: Shrijeet Mukherjee <shm@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2015-08-13 14:59:02 -06:00
committed by David S. Miller
parent cd2fbe1b6b
commit 613d09b30f
5 changed files with 18 additions and 2 deletions
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3
include/net/route.h
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@@ -251,6 +251,9 @@ static inline void ip_route_connect_init(struct flowi4 *fl4, __be32 dst, __be32
if (inet_sk(sk)->transparent)
flow_flags |= FLOWI_FLAG_ANYSRC;
if (netif_index_is_vrf(sock_net(sk), oif))
flow_flags |= FLOWI_FLAG_VRFSRC;
flowi4_init_output(fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE,
protocol, flow_flags, dst, src, dport, sport);
}