From: KOVACS Krisztian <hidden@sch.bme.hu>
To: David Miller <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>, netdev@vger.kernel.org
Subject: [PATCH 12/14] Don't lookup the socket if there's a socket attached to the skb
Date: Sat, 13 Oct 2007 19:35:09 +0200 [thread overview]
Message-ID: <20071013173509.22517.683.stgit@nessa.odu> (raw)
In-Reply-To: <20071013172857.22517.84760.stgit@nessa.odu>
Use the socket cached in the TPROXY target if it's present.
Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
---
net/ipv4/tcp_ipv4.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index fb471b0..90ee2ca 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1662,6 +1662,14 @@ int tcp_v4_rcv(struct sk_buff *skb)
TCP_SKB_CB(skb)->flags = iph->tos;
TCP_SKB_CB(skb)->sacked = 0;
+#if defined(CONFIG_NETFILTER_TPROXY) || defined(CONFIG_NETFILTER_TPROXY_MODULE)
+ if (unlikely(skb->sk)) {
+ /* steal reference */
+ sk = skb->sk;
+ skb->destructor = NULL;
+ skb->sk = NULL;
+ } else
+#endif
sk = __inet_lookup(&tcp_hashinfo, iph->saddr, th->source,
iph->daddr, th->dest, inet_iif(skb));
if (!sk)
next prev parent reply other threads:[~2007-10-13 17:39 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-13 17:28 [PATCH 00/14] Transparent Proxying Patches, Take 5 KOVACS Krisztian
2007-10-13 17:29 ` [PATCH 01/14] Loosen source address check on IPv4 output KOVACS Krisztian
2007-10-13 17:29 ` [PATCH 02/14] Implement IP_TRANSPARENT socket option KOVACS Krisztian
2007-10-13 17:30 ` [PATCH 03/14] Allow binding to non-local addresses if IP_TRANSPARENT is set KOVACS Krisztian
2007-10-13 17:31 ` [PATCH 04/14] Conditionally enable transparent flow flag when connecting KOVACS Krisztian
2007-10-13 17:31 ` [PATCH 05/14] Handle TCP SYN+ACK/ACK/RST transparency KOVACS Krisztian
2007-10-13 17:32 ` [PATCH 06/14] Port redirection support for TCP KOVACS Krisztian
2007-10-13 17:32 ` [PATCH 07/14] Export UDP socket lookup function KOVACS Krisztian
2007-10-13 17:33 ` [PATCH 08/14] Split Netfilter IPv4 defragmentation into a separate module KOVACS Krisztian
2007-10-13 17:33 ` [PATCH 09/14] iptables tproxy core KOVACS Krisztian
2007-10-13 17:34 ` [PATCH 10/14] iptables socket match KOVACS Krisztian
2007-10-13 17:34 ` [PATCH 11/14] iptables TPROXY target KOVACS Krisztian
2007-10-13 17:35 ` KOVACS Krisztian [this message]
2007-10-13 17:35 ` [PATCH 13/14] Don't lookup the socket if there's a socket attached to the skb KOVACS Krisztian
2007-10-13 17:36 ` [PATCH 14/14] Add documentation KOVACS Krisztian
2007-10-13 22:44 ` [PATCH 00/14] Transparent Proxying Patches, Take 5 David Miller
2007-10-14 9:05 ` KOVACS Krisztian
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