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[NETFILTER]: bridge: fix double POSTROUTING hook invocation

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Packets routed between bridges have the POST_ROUTING hook invoked
twice since bridging mistakes them for bridged packets because
they have skb->nf_bridge set.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-11-13 02:58:44 -08:00 committed by David S. Miller
parent 4ce5ba6aec
commit 81d9ddae85
1 changed files with 3 additions and 0 deletions
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3
net/bridge/br_netfilter.c
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@ -766,6 +766,9 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
if (!nf_bridge)
return NF_ACCEPT;
if (!(nf_bridge->mask & (BRNF_BRIDGED | BRNF_BRIDGED_DNAT)))
return NF_ACCEPT;
if (!realoutdev)
return NF_DROP;