Commit 4dc27d1c authored Jun 25, 2012 by David McCullough Committed by David S. Miller Jun 25, 2012

net/ipv6/route.c: packets originating on device match lo



Fix to allow IPv6 packets originating locally to match rules with the "iff"
set to "lo".  This allows IPv6 rule matching work the same as it does for
IPv4.  From the iproute2 man page:

   iif NAME
		  select  the incoming device to match.  If the interface is loop‐
		  back, the rule only matches packets originating from this  host.
		  This  means that you may create separate routing tables for for‐
		  warded and local packets and, hence, completely segregate them.

Signed-off-by: David McCullough <david_mccullough@mcafee.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 91fa0cbc

net/ipv6/route.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -937,6 +937,8 @@ struct dst_entry * ip6_route_output(struct net net, const struct sock sk,
		{
		int flags = 0;

		fl6->flowi6_iif = net->loopback_dev->ifindex;

		if ((sk && sk->sk_bound_dev_if) \|\| rt6_need_strict(&fl6->daddr))
		flags \|= RT6_LOOKUP_F_IFACE;

Admin message