xfrm: update flowi saddr in icmp_send if unset

otherwise xfrm_lookup will fail to find correct policy Signed-off-by: Ulrich Weber <[email protected]> Signed-off-by: David S. Miller <[email protected]>
RyanHsu · Nov 16, 2010 · 7d98ffd · 7d98ffd
1 parent 4c62ab9
commit 7d98ffd
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
@@ -569,6 +569,9 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 		/* No need to clone since we're just using its address. */
 		rt2 = rt;
 
+		if (!fl.nl_u.ip4_u.saddr)
+			fl.nl_u.ip4_u.saddr = rt->rt_src;
+
 		err = xfrm_lookup(net, (struct dst_entry **)&rt, &fl, NULL, 0);
 		switch (err) {
 		case 0: