net: Add source address lookup op for VRF
Add operation to l3mdev to lookup source address for a given flow.
Add support for the operation to VRF driver and convert existing
IPv4 hooks to use the new lookup.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/route.h b/include/net/route.h
index 3e18d90..ee81307 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -266,9 +266,6 @@
if (inet_sk(sk)->transparent)
flow_flags |= FLOWI_FLAG_ANYSRC;
- if (netif_index_is_l3_master(sock_net(sk), oif))
- flow_flags |= FLOWI_FLAG_L3MDEV_SRC | FLOWI_FLAG_SKIP_NH_OIF;
-
flowi4_init_output(fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE,
protocol, flow_flags, dst, src, dport, sport);
}
@@ -285,6 +282,10 @@
ip_route_connect_init(fl4, dst, src, tos, oif, protocol,
sport, dport, sk);
+ if (!src && oif) {
+ l3mdev_get_saddr(net, oif, fl4);
+ src = fl4->saddr;
+ }
if (!dst || !src) {
rt = __ip_route_output_key(net, fl4);
if (IS_ERR(rt))