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: Balazs Scheidler <bazsi@balabit.hu> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
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@ -183,6 +183,9 @@ extern int udp_lib_setsockopt(struct sock *sk, int level, int optname,
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extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
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__be32 daddr, __be16 dport,
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int dif);
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extern struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
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const struct in6_addr *daddr, __be16 dport,
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int dif);
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/*
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* SNMP statistics for UDP and UDP-Lite
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@ -320,6 +320,14 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
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udptable);
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}
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struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
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const struct in6_addr *daddr, __be16 dport, int dif)
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{
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return __udp6_lib_lookup(net, saddr, sport, daddr, dport, dif, &udp_table);
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}
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EXPORT_SYMBOL_GPL(udp6_lib_lookup);
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/*
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* This should be easy, if there is something there we
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* return it, otherwise we block.
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