Commit e0adef0f authored Oct 08, 2012 by Julian Anastasov Committed by David S. Miller Oct 08, 2012

ipv4: fix forwarding for strict source routes



After the change "Adjust semantics of rt->rt_gateway"
(commit f8126f1d) rt_gateway can be 0 but ip_forward() compares
it directly with nexthop. What we want here is to check if traffic
is to directly connected nexthop and to fail if using gateway.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent e81da0e1

net/ipv4/ip_forward.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -85,7 +85,7 @@ int ip_forward(struct sk_buff *skb)

		rt = skb_rtable(skb);

		if (opt->is_strictroute && opt->nexthop != rt->rt_gateway)
		if (opt->is_strictroute && rt->rt_gateway)
		goto sr_failed;

		if (unlikely(skb->len > dst_mtu(&rt->dst) && !skb_is_gso(skb) &&