From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [PATCH/RFC 10/13] Export UDP socket lookup function Date: Mon, 05 Mar 2007 16:46:32 +0100 Message-ID: <20070305154631.3471.85876.stgit@nienna.balabit> References: <20070305154451.3471.18396.stgit@nienna.balabit> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from www.balabit.hu ([212.92.18.33]:3020 "EHLO lists.balabit.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933543AbXCEPqd (ORCPT ); Mon, 5 Mar 2007 10:46:33 -0500 Received: from balabit.hu (unknown [10.80.0.254]) by lists.balabit.hu (Postfix) with ESMTP id 5F6DD294023 for ; Mon, 5 Mar 2007 16:46:32 +0100 (CET) In-Reply-To: <20070305154451.3471.18396.stgit@nienna.balabit> 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 1b921fa..ea5aa31 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -141,6 +141,10 @@ 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 1d15edc..52695a6 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -285,6 +285,14 @@ 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,