From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [PATCH 13/13] Don't lookup the socket if there's a socket attached to the skb Date: Sun, 30 Sep 2007 22:53:56 +0200 Message-ID: <20070930205356.10969.48182.stgit@nessa.odu> References: <20070930205141.10969.27205.stgit@nessa.odu> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netfilter-devel@vger.kernel.org, Balazs Scheidler , Toth Laszlo Attila To: Patrick McHardy Return-path: Received: from centaur.sch.bme.hu ([152.66.208.5]:40428 "EHLO centaur.sch.bme.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752387AbXI3VLy (ORCPT ); Sun, 30 Sep 2007 17:11:54 -0400 In-Reply-To: <20070930205141.10969.27205.stgit@nessa.odu> Sender: netfilter-devel-owner@vger.kernel.org List-Id: netfilter-devel.vger.kernel.org Use the socket cached in the TPROXY target if it's present. Signed-off-by: KOVACS Krisztian --- net/ipv4/udp.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 2fb3b7c..2bdf034 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1151,6 +1151,14 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[], if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST)) return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable); +#if defined(CONFIG_IP_NF_TPROXY) || defined (CONFIG_IP_NF_TPROXY_MODULE) + if (unlikely(skb->sk)) { + /* steal reference */ + sk = skb->sk; + skb->destructor = NULL; + skb->sk = NULL; + } else +#endif sk = __udp4_lib_lookup(saddr, uh->source, daddr, uh->dest, skb->dev->ifindex, udptable );