1/*
2 * NET		Generic infrastructure for Network protocols.
3 *
4 * Authors:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
5 *
6 *		This program is free software; you can redistribute it and/or
7 *		modify it under the terms of the GNU General Public License
8 *		as published by the Free Software Foundation; either version
9 *		2 of the License, or (at your option) any later version.
10 */
11#ifndef _TIMEWAIT_SOCK_H
12#define _TIMEWAIT_SOCK_H
13
14#include <linux/slab.h>
15#include <net/sock.h>
16
17struct timewait_sock_ops {
18	struct kmem_cache	*twsk_slab;
19	unsigned int	twsk_obj_size;
20	int		(*twsk_unique)(struct sock *sk,
21				       struct sock *sktw, void *twp);
22	void		(*twsk_destructor)(struct sock *sk);
23};
24
25static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
26{
27	if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
28		return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
29	return 0;
30}
31
32static inline void twsk_destructor(struct sock *sk)
33{
34	BUG_ON(sk == NULL);
35	BUG_ON(sk->sk_prot == NULL);
36	BUG_ON(sk->sk_prot->twsk_prot == NULL);
37	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
38		sk->sk_prot->twsk_prot->twsk_destructor(sk);
39}
40
41#endif /* _TIMEWAIT_SOCK_H */
42