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authorBenjamin LaHaise <bcrl@kvack.org>2012-03-27 15:55:44 +0000
committerDavid S. Miller <davem@davemloft.net>2012-03-28 04:45:37 -0400
commit3b9785c6b0ff37ac4ef5085b38756283da84dceb (patch)
tree08592027bcbba8ccc9074011868228a9b0f0ab7d /net
parent4e7b2f1454382b220f792a7fbcbebd0985187161 (diff)
downloadlinux-3b9785c6b0ff37ac4ef5085b38756283da84dceb.tar.bz2
net/core: dev_forward_skb() should clear skb_iif
While investigating another bug, I found that the code on the incoming path in __netif_receive_skb will only set skb->skb_iif if it is already 0. When dev_forward_skb() is used in the case of interfaces like veth, skb_iif may already have been set. Making dev_forward_skb() cause the packet to look like a newly received packet would seem to the the correct behaviour here, as otherwise the wrong incoming interface can be reported for such a packet. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 452db7090d18..723a4065a00e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1597,6 +1597,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
kfree_skb(skb);
return NET_RX_DROP;
}
+ skb->skb_iif = 0;
skb_set_dev(skb, dev);
skb->tstamp.tv64 = 0;
skb->pkt_type = PACKET_HOST;