include/net/netfilter/nf_socket.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _NF_SOCK_H_
   3 #define _NF_SOCK_H_
   4
   5 struct net_device;
   6 struct sk_buff;
   7 struct sock;
   8 struct net;
   9
  10 static inline bool nf_sk_is_transparent(struct sock *sk)
  11 {
  12         switch (sk->sk_state) {
  13         case TCP_TIME_WAIT:
  14                 return inet_twsk(sk)->tw_transparent;
  15         case TCP_NEW_SYN_RECV:
  16                 return inet_rsk(inet_reqsk(sk))->no_srccheck;
  17         default:
  18                 return inet_sk(sk)->transparent;
  19         }
  20 }
  21
  22 struct sock *nf_sk_lookup_slow_v4(struct net *net, const struct sk_buff *skb,
  23                                   const struct net_device *indev);
  24
  25 struct sock *nf_sk_lookup_slow_v6(struct net *net, const struct sk_buff *skb,
  26                                   const struct net_device *indev);
  27
  28 #endif