From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [PATCH 07/14] Export UDP socket lookup function Date: Sat, 13 Oct 2007 19:32:35 +0200 Message-ID: <20071013173235.22517.30696.stgit@nessa.odu> References: <20071013172857.22517.84760.stgit@nessa.odu> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7BIT Cc: Patrick McHardy , netdev@vger.kernel.org To: David Miller Return-path: Received: from balu.sch.bme.hu ([152.66.208.40]:45511 "EHLO balu.sch.bme.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761605AbXJMSjv (ORCPT ); Sat, 13 Oct 2007 14:39:51 -0400 Received: from nessa.odu ([152.66.208.5]) by balu.sch.bme.hu (Sun Java System Messaging Server 6.2-7.05 (built Sep 5 2006)) with ESMTP id <0JPV009GX1ZCZ930@balu.sch.bme.hu> for netdev@vger.kernel.org; Sat, 13 Oct 2007 19:30:49 +0200 (CEST) In-reply-to: <20071013172857.22517.84760.stgit@nessa.odu> Sender: netdev-owner@vger.kernel.org List-Id: netdev.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 cb9fc58..053d5c4 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -294,6 +294,14 @@ 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,