include/net/timewait_sock.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * NET          Generic infrastructure for Network protocols.
   4  *
   5  * Authors:     Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   6  */
   7 #ifndef _TIMEWAIT_SOCK_H
   8 #define _TIMEWAIT_SOCK_H
   9
  10 #include <linux/slab.h>
  11 #include <linux/bug.h>
  12 #include <net/sock.h>
  13
  14 struct timewait_sock_ops {
  15         struct kmem_cache       *twsk_slab;
  16         char            *twsk_slab_name;
  17         unsigned int    twsk_obj_size;
  18         int             (*twsk_unique)(struct sock *sk,
  19                                        struct sock *sktw, void *twp);
  20         void            (*twsk_destructor)(struct sock *sk);
  21 };
  22
  23 static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
  24 {
  25         if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
  26                 return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
  27         return 0;
  28 }
  29
  30 static inline void twsk_destructor(struct sock *sk)
  31 {
  32         if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
  33                 sk->sk_prot->twsk_prot->twsk_destructor(sk);
  34 }
  35
  36 #endif /* _TIMEWAIT_SOCK_H */