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Commit aa976fc0 authored by Balazs Scheidler's avatar Balazs Scheidler Committed by Patrick McHardy
Browse files

tproxy: added udp6_lib_lookup function 



Just like with IPv4, we need access to the UDP hash table to look up local
sockets, but instead of exporting the global udp_table, export a lookup
function.

Signed-off-by: default avatarBalazs Scheidler <bazsi@balabit.hu>
Signed-off-by: default avatarKOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
parent 88440ae7

include/net/udp.h

+3 −0
Original line number Diff line number Diff line
@@ -183,6 +183,9 @@ extern int udp_lib_setsockopt(struct sock *sk, int level, int optname, 
extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,

				    __be32 daddr, __be16 dport,

				    int dif);

extern struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,

				    const struct in6_addr *daddr, __be16 dport,

				    int dif);



/*

 * 	SNMP statistics for UDP and UDP-Lite

net/ipv6/udp.c

+8 −0
Original line number Diff line number Diff line
@@ -320,6 +320,14 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb, 
				 udptable);

}



struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,

			     const struct in6_addr *daddr, __be16 dport, int dif)

{

	return __udp6_lib_lookup(net, saddr, sport, daddr, dport, dif, &udp_table);

}

EXPORT_SYMBOL_GPL(udp6_lib_lookup);





/*

 * 	This should be easy, if there is something there we

 * 	return it, otherwise we block.