[net-next-2.6.git] / net / ipv4 / tcp_diag.c

/*
 * tcp_diag.c	Module for monitoring TCP transport protocols sockets.
 *
 * Version:	$Id: tcp_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
 *
 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 *	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.
 */


#include <linux/module.h>
#include <linux/inet_diag.h>

#include <linux/tcp.h>

#include <net/tcp.h>

static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
			      void *_info)
{
	const struct tcp_sock *tp = tcp_sk(sk);
	struct tcp_info *info = _info;

	if (sk->sk_state == TCP_LISTEN)
		r->idiag_rqueue = sk->sk_ack_backlog;
	else
		r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
	r->idiag_wqueue = tp->write_seq - tp->snd_una;
	if (info != NULL)
		tcp_get_info(sk, info);
}

static struct inet_diag_handler tcp_diag_handler = {
	.idiag_hashinfo	 = &tcp_hashinfo,
	.idiag_get_info	 = tcp_diag_get_info,
	.idiag_type	 = TCPDIAG_GETSOCK,
	.idiag_info_size = sizeof(struct tcp_info),
};

static int __init tcp_diag_init(void)
{
	return inet_diag_register(&tcp_diag_handler);
}

static void __exit tcp_diag_exit(void)
{
	inet_diag_unregister(&tcp_diag_handler);
}

module_init(tcp_diag_init);
module_exit(tcp_diag_exit);
MODULE_LICENSE("GPL");
Commit	Line	Data
17b085ea ACM	1	/*
	2	* tcp_diag.c Module for monitoring TCP transport protocols sockets.
	3	*
	4	* Version: $Id: tcp_diag.c,v 1.3 2002/02/01 22:01:04 davem Exp $
	5	*
	6	* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* as published by the Free Software Foundation; either version
	11	* 2 of the License, or (at your option) any later version.
	12	*/
	13
17b085ea ACM	14
	15	#include <linux/module.h>
	16	#include <linux/inet_diag.h>
	17
	18	#include <linux/tcp.h>
	19
	20	#include <net/tcp.h>
	21
	22	static void tcp_diag_get_info(struct sock sk, struct inet_diag_msg r,
	23	void *_info)
	24	{
	25	const struct tcp_sock *tp = tcp_sk(sk);
	26	struct tcp_info *info = _info;
	27
47da8ee6 SS	28	if (sk->sk_state == TCP_LISTEN)
	29	r->idiag_rqueue = sk->sk_ack_backlog;
	30	else
	31	r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
17b085ea ACM	32	r->idiag_wqueue = tp->write_seq - tp->snd_una;
	33	if (info != NULL)
	34	tcp_get_info(sk, info);
	35	}
	36
	37	static struct inet_diag_handler tcp_diag_handler = {
	38	.idiag_hashinfo = &tcp_hashinfo,
	39	.idiag_get_info = tcp_diag_get_info,
	40	.idiag_type = TCPDIAG_GETSOCK,
	41	.idiag_info_size = sizeof(struct tcp_info),
	42	};
	43
	44	static int __init tcp_diag_init(void)
	45	{
	46	return inet_diag_register(&tcp_diag_handler);
	47	}
	48
	49	static void __exit tcp_diag_exit(void)
	50	{
	51	inet_diag_unregister(&tcp_diag_handler);
	52	}
	53
	54	module_init(tcp_diag_init);
	55	module_exit(tcp_diag_exit);
	56	MODULE_LICENSE("GPL");