net: Fix RPF to work with policy routing

Policy routing is not looked up by mark on reverse path filtering.
This fixes it.

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index e2f950592566..aa00398be80e 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -229,14 +229,17 @@ unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,
  */
 
 int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
-                        struct net_device *dev, __be32 *spec_dst, u32 *itag)
+                        struct net_device *dev, __be32 *spec_dst,
+                        u32 *itag, u32 mark)
 {
         struct in_device *in_dev;
         struct flowi fl = { .nl_u = { .ip4_u =
                                       { .daddr = src,
                                         .saddr = dst,
                                         .tos = tos } },
+                            .mark = mark,
                             .iif = oif };
+
         struct fib_result res;
         int no_addr, rpf;
         int ret;