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authorHerbert Xu <herbert@gondor.apana.org.au>2009-06-27 06:22:37 +0400
committerDavid S. Miller <davem@davemloft.net>2009-06-27 06:22:37 +0400
commit71f9dacd2e4d233029e9e956ca3f79531f411827 (patch)
treef625e54e95107dcbc622a6ecf64138fca3d8e0c7 /net/ipv4/ip_input.c
parent4a27096bbe2cad4c6e78802a0d9dfe0e598a1129 (diff)
downloadlinux-71f9dacd2e4d233029e9e956ca3f79531f411827.tar.xz
inet: Call skb_orphan before tproxy activates
As transparent proxying looks up the socket early and assigns it to the skb for later processing, we must drop any existing socket ownership prior to that in order to distinguish between the case where tproxy is active and where it is not. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 490ce20faf38..db46b4b5b2b9 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -440,6 +440,9 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
/* Remove any debris in the socket control block */
memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
+ /* Must drop socket now because of tproxy. */
+ skb_orphan(skb);
+
return NF_HOOK(PF_INET, NF_INET_PRE_ROUTING, skb, dev, NULL,
ip_rcv_finish);