[PATCH 3.8 20/91] ipv4: fix ineffective source address selection
From: Kamal Mostafa
Date: Thu Nov 07 2013 - 21:19:00 EST
3.8.13.13 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiri Benc <jbenc@xxxxxxxxxx>
[ Upstream commit 0a7e22609067ff524fc7bbd45c6951dd08561667 ]
When sending out multicast messages, the source address in inet->mc_addr is
ignored and rewritten by an autoselected one. This is caused by a typo in
commit 813b3b5db831 ("ipv4: Use caller's on-stack flowi as-is in output
route lookups").
Signed-off-by: Jiri Benc <jbenc@xxxxxxxxxx>
Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
net/ipv4/route.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 70da494..0bf88e4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2024,7 +2024,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
RT_SCOPE_LINK);
goto make_route;
}
- if (fl4->saddr) {
+ if (!fl4->saddr) {
if (ipv4_is_multicast(fl4->daddr))
fl4->saddr = inet_select_addr(dev_out, 0,
fl4->flowi4_scope);
--
1.8.1.2
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