LXR linux/include/net/netfilter/nf_tproxy

   1#ifndef _NF_TPROXY_CORE_H
   2#define _NF_TPROXY_CORE_H
   3
   4#include <linux/types.h>
   5#include <linux/in.h>
   6#include <linux/skbuff.h>
   7#include <net/sock.h>
   8#include <net/inet_sock.h>
   9#include <net/tcp.h>
  10
  11/* look up and get a reference to a matching socket */
  12extern struct sock *
  13nf_tproxy_get_sock_v4(struct net *net, const u8 protocol,
  14                      const __be32 saddr, const __be32 daddr,
  15                      const __be16 sport, const __be16 dport,
  16                      const struct net_device *in, bool listening);
  17
  18static inline void
  19nf_tproxy_put_sock(struct sock *sk)
  20{
  21        /* TIME_WAIT inet sockets have to be handled differently */
  22        if ((sk->sk_protocol == IPPROTO_TCP) && (sk->sk_state == TCP_TIME_WAIT))
  23                inet_twsk_put(inet_twsk(sk));
  24        else
  25                sock_put(sk);
  26}
  27
  28/* assign a socket to the skb -- consumes sk */
  29int
  30nf_tproxy_assign_sock(struct sk_buff *skb, struct sock *sk);
  31
  32#endif
  33