From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [PATCH/RFC 07/10] Export UDP socket lookup function Date: Wed, 03 Jan 2007 17:37:28 +0100 Message-ID: <20070103163728.14635.58566.stgit@nienna.balabit> References: <20070103163357.14635.37754.stgit@nienna.balabit> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: To: netfilter-devel@lists.netfilter.org, netdev@vger.kernel.org In-Reply-To: <20070103163357.14635.37754.stgit@nienna.balabit> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-devel-bounces@lists.netfilter.org Errors-To: netfilter-devel-bounces@lists.netfilter.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 so 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 1b348f5..a44d3d3 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -284,6 +284,14 @@ static struct sock *__udp4_lib_lookup(__ 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,