Hi,

  For local src packets, it is better to update sk_route_caps in

  ip_route_me_harder.
Signed-off-by: Lepton Wu <ytht.net@gmail.com>
diff -pru -X linux-2.6.22.6/Documentation/dontdiff linux-2.6.22.6/net/ipv4/netfilter.c linux-2.6.22.6-lepton/net/ipv4/netfilter.c

--- linux-2.6.22.6/net/ipv4/netfilter.c	2007-09-19 13:19:13.000000000 +0800

+++ linux-2.6.22.6-lepton/net/ipv4/netfilter.c	2007-09-19 17:10:36.000000000 +0800

@@ -37,6 +37,10 @@ int ip_route_me_harder(struct sk_buff **

 		/* Drop old route. */

 		dst_release((*pskb)->dst);

 		(*pskb)->dst = &rt->u.dst;

+		if((*pskb)->sk){

+			dst_hold((*pskb)->dst);

+			sk_setup_caps((*pskb)->sk, (*pskb)->dst);

+		}

 	} else {

 		/* non-local src, find valid iif to satisfy

 		 * rp-filter when calling ip_route_input. */

-

This seems like a good idea to me. But why only for local src

(address) packets? This function can also be used for locally

generated packet that have been (f.i.) NATed to a foreign
-