From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [PATCH 07/13] Export UDP socket lookup function Date: Sun, 30 Sep 2007 22:52:54 +0200 Message-ID: <20070930205254.10969.60517.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]:40435 "EHLO centaur.sch.bme.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752441AbXI3VL4 (ORCPT ); Sun, 30 Sep 2007 17:11:56 -0400 In-Reply-To: <20070930205141.10969.27205.stgit@nessa.odu> Sender: netfilter-devel-owner@vger.kernel.org List-Id: netfilter-devel.vger.kernel.org The iptables tproxy code has to be able to do UDP socket hash lookups, so we have to provide an exported lookup function for this purpose. Signed-off-by: KOVACS Krisztian --- include/net/udp.h | 4 ++++ net/ipv4/udp.c | 8 ++++++++ 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/include/net/udp.h b/include/net/udp.h index 98755eb..3efae7d 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -138,6 +138,10 @@ extern int udp_lib_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen, int (*push_pending_frames)(struct sock *)); +extern struct sock *udp4_lib_lookup(__be32 saddr, __be16 sport, + __be32 daddr, __be16 dport, + int dif); + DECLARE_SNMP_STAT(struct udp_mib, udp_statistics); /* * SNMP statistics for UDP and UDP-Lite diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 69d4bd1..2fb3b7c 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -287,6 +287,14 @@ static struct sock *__udp4_lib_lookup(__be32 saddr, __be16 sport, return result; } +struct sock *udp4_lib_lookup(__be32 saddr, __be16 sport, + __be32 daddr, __be16 dport, + int dif) +{ + return __udp4_lib_lookup(saddr, sport, daddr, dport, dif, udp_hash); +} +EXPORT_SYMBOL_GPL(udp4_lib_lookup); + static inline struct sock *udp_v4_mcast_next(struct sock *sk, __be16 loc_port, __be32 loc_addr, __be16 rmt_port, __be32 rmt_addr,