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 <linux/bug.h>
16#include <net/sock.h>
17
18struct timewait_sock_ops {
19	struct kmem_cache	*twsk_slab;
20	char		*twsk_slab_name;
21	unsigned int	twsk_obj_size;
22	int		(*twsk_unique)(struct sock *sk,
23				       struct sock *sktw, void *twp);
24	void		(*twsk_destructor)(struct sock *sk);
 
25};
26
27static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
28{
29	if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
30		return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
31	return 0;
32}
33
34static inline void twsk_destructor(struct sock *sk)
35{
 
 
 
36	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
37		sk->sk_prot->twsk_prot->twsk_destructor(sk);
 
 
 
 
 
 
 
38}
39
40#endif /* _TIMEWAIT_SOCK_H */

 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 <linux/bug.h>
16#include <net/sock.h>
17
18struct timewait_sock_ops {
19	struct kmem_cache	*twsk_slab;
20	char		*twsk_slab_name;
21	unsigned int	twsk_obj_size;
22	int		(*twsk_unique)(struct sock *sk,
23				       struct sock *sktw, void *twp);
24	void		(*twsk_destructor)(struct sock *sk);
25	void		*(*twsk_getpeer)(struct sock *sk);
26};
27
28static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
29{
30	if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
31		return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
32	return 0;
33}
34
35static inline void twsk_destructor(struct sock *sk)
36{
37	BUG_ON(sk == NULL);
38	BUG_ON(sk->sk_prot == NULL);
39	BUG_ON(sk->sk_prot->twsk_prot == NULL);
40	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
41		sk->sk_prot->twsk_prot->twsk_destructor(sk);
42}
43
44static inline void *twsk_getpeer(struct sock *sk)
45{
46	if (sk->sk_prot->twsk_prot->twsk_getpeer)
47		return sk->sk_prot->twsk_prot->twsk_getpeer(sk);
48	return NULL;
49}
50
51#endif /* _TIMEWAIT_SOCK_H */