[mirror_ubuntu-artful-kernel.git] / include / net / timewait_sock.h

/*
 * NET		Generic infrastructure for Network protocols.
 *
 * Authors:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _TIMEWAIT_SOCK_H
#define _TIMEWAIT_SOCK_H

#include <linux/slab.h>
#include <net/sock.h>

struct timewait_sock_ops {
	struct kmem_cache	*twsk_slab;
	char		*twsk_slab_name;
	unsigned int	twsk_obj_size;
	int		(*twsk_unique)(struct sock *sk,
				       struct sock *sktw, void *twp);
	void		(*twsk_destructor)(struct sock *sk);
	void		*(*twsk_getpeer)(struct sock *sk);
};

static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
{
	if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
		return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
	return 0;
}

static inline void twsk_destructor(struct sock *sk)
{
	BUG_ON(sk == NULL);
	BUG_ON(sk->sk_prot == NULL);
	BUG_ON(sk->sk_prot->twsk_prot == NULL);
	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
		sk->sk_prot->twsk_prot->twsk_destructor(sk);
}

static inline void *twsk_getpeer(struct sock *sk)
{
	if (sk->sk_prot->twsk_prot->twsk_getpeer)
		return sk->sk_prot->twsk_prot->twsk_getpeer(sk);
	return NULL;
}

#endif /* _TIMEWAIT_SOCK_H */
Commit	Line	Data
6d6ee43e ACM	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
	17	struct timewait_sock_ops {
e18b890b	18	struct kmem_cache *twsk_slab;
7e56b5d6	19	char *twsk_slab_name;
6d6ee43e ACM	20	unsigned int twsk_obj_size;
	21	int (twsk_unique)(struct sock sk,
	22	struct sock sktw, void twp);
42b6785e	23	void (twsk_destructor)(struct sock sk);
ccb7c410	24	void (twsk_getpeer)(struct sock *sk);
6d6ee43e ACM	25	};
	26
	27	static 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
42b6785e YH	34	static inline void twsk_destructor(struct sock *sk)
42b6785e YH	35	{
cfb6eeb4 YH	36	BUG_ON(sk == NULL);
	37	BUG_ON(sk->sk_prot == NULL);
	38	BUG_ON(sk->sk_prot->twsk_prot == NULL);
42b6785e YH	39	if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
	40	sk->sk_prot->twsk_prot->twsk_destructor(sk);
	41	}
	42
ccb7c410 DM	43	static inline void twsk_getpeer(struct sock sk)
	44	{
	45	if (sk->sk_prot->twsk_prot->twsk_getpeer)
	46	return sk->sk_prot->twsk_prot->twsk_getpeer(sk);
	47	return NULL;
	48	}
	49
6d6ee43e	50	#endif /* _TIMEWAIT_SOCK_H */