From mboxrd@z Thu Jan 1 00:00:00 1970 From: KOVACS Krisztian Subject: [net-next PATCH 09/16] Export UDP socket lookup function Date: Wed, 01 Oct 2008 16:24:31 +0200 Message-ID: <20081001142431.4893.2247.stgit@este> References: <20081001142431.4893.48078.stgit@este> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7BIT Cc: Patrick McHardy , netdev@vger.kernel.org, netfilter-devel@vger.kernel.org To: David Miller Return-path: In-reply-to: <20081001142431.4893.48078.stgit@este> Sender: netfilter-devel-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 | 7 +++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/include/net/udp.h b/include/net/udp.h index addcdc6..d38f6f2 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -148,6 +148,10 @@ 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(struct net *net, __be32 saddr, __be16 sport, + __be32 daddr, __be16 dport, + int dif); + DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6); /* UDP-Lite does not have a standardized MIB yet, so we inherit from UDP */ diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 8e42fbb..28c3c31 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -302,6 +302,13 @@ static struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, return result; } +struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, + __be32 daddr, __be16 dport, int dif) +{ + return __udp4_lib_lookup(net, 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,