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 <hidden@xxxxxxxxxx>
---
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,
-
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