Commit 901eaf6c authored Oct 02, 2006 by Simon Horman Committed by David S. Miller Oct 04, 2006

[NETFILTER]: Honour source routing for LVS-NAT



For policy routing, packets originating from this machine itself may be
routed differently to packets passing through. We want this packet to be
routed as if it came from this machine itself. So re-compute the routing
information using ip_route_me_harder().

This patch is derived from work by Ken Brownfield

Cc: Ken Brownfield <krb@irridia.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b4c4ed17

net/ipv4/ipvs/ip_vs_core.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -813,6 +813,16 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
		skb->nh.iph->saddr = cp->vaddr;
		ip_send_check(skb->nh.iph);

		/* For policy routing, packets originating from this
		* machine itself may be routed differently to packets
		* passing through. We want this packet to be routed as
		* if it came from this machine itself. So re-compute
		* the routing information.
		*/
		if (ip_route_me_harder(pskb, RTN_LOCAL) != 0)
		goto drop;
		skb = *pskb;

		IP_VS_DBG_PKT(10, pp, skb, 0, "After SNAT");

		ip_vs_out_stats(cp, skb);

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