[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / sctp / sysctl.c

/* SCTP kernel implementation
 * (C) Copyright IBM Corp. 2002, 2004
 * Copyright (c) 2002 Intel Corp.
 *
 * This file is part of the SCTP kernel implementation
 *
 * Sysctl related interfaces for SCTP.
 *
 * This SCTP implementation 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, or (at your option)
 * any later version.
 *
 * This SCTP implementation is distributed in the hope that it
 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
 *                 ************************
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU CC; see the file COPYING.  If not, write to
 * the Free Software Foundation, 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Please send any bug reports or fixes you make to the
 * email address(es):
 *    lksctp developers <lksctp-developers@lists.sourceforge.net>
 *
 * Or submit a bug report through the following website:
 *    http://www.sf.net/projects/lksctp
 *
 * Written or modified by:
 *    Mingqin Liu           <liuming@us.ibm.com>
 *    Jon Grimm             <jgrimm@us.ibm.com>
 *    Ardelle Fan           <ardelle.fan@intel.com>
 *    Ryan Layer            <rmlayer@us.ibm.com>
 *    Sridhar Samudrala     <sri@us.ibm.com>
 *
 * Any bugs reported given to us we will try to fix... any fixes shared will
 * be incorporated into the next SCTP release.
 */

#include <net/sctp/structs.h>
#include <net/sctp/sctp.h>
#include <linux/sysctl.h>

static int zero = 0;
static int one = 1;
static int timer_max = 86400000; /* ms in one day */
static int int_max = INT_MAX;
static int sack_timer_min = 1;
static int sack_timer_max = 500;
static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */
static int rwnd_scale_max = 16;
static unsigned long max_autoclose_min = 0;
static unsigned long max_autoclose_max =
	(MAX_SCHEDULE_TIMEOUT / HZ > UINT_MAX)
	? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ;

extern long sysctl_sctp_mem[3];
extern int sysctl_sctp_rmem[3];
extern int sysctl_sctp_wmem[3];

static ctl_table sctp_table[] = {
	{
		.procname	= "sctp_mem",
		.data		= &sysctl_sctp_mem,
		.maxlen		= sizeof(sysctl_sctp_mem),
		.mode		= 0644,
		.proc_handler	= proc_doulongvec_minmax
	},
	{
		.procname	= "sctp_rmem",
		.data		= &sysctl_sctp_rmem,
		.maxlen		= sizeof(sysctl_sctp_rmem),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "sctp_wmem",
		.data		= &sysctl_sctp_wmem,
		.maxlen		= sizeof(sysctl_sctp_wmem),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},

	{ /* sentinel */ }
};

static ctl_table sctp_net_table[] = {
	{
		.procname	= "rto_initial",
		.data		= &init_net.sctp.rto_initial,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &one,
		.extra2         = &timer_max
	},
	{
		.procname	= "rto_min",
		.data		= &init_net.sctp.rto_min,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &one,
		.extra2         = &timer_max
	},
	{
		.procname	= "rto_max",
		.data		= &init_net.sctp.rto_max,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &one,
		.extra2         = &timer_max
	},
	{
		.procname	= "rto_alpha_exp_divisor",
		.data		= &init_net.sctp.rto_alpha,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "rto_beta_exp_divisor",
		.data		= &init_net.sctp.rto_beta,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "max_burst",
		.data		= &init_net.sctp.max_burst,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &int_max
	},
	{
		.procname	= "cookie_preserve_enable",
		.data		= &init_net.sctp.cookie_preserve_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "valid_cookie_life",
		.data		= &init_net.sctp.valid_cookie_life,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &one,
		.extra2         = &timer_max
	},
	{
		.procname	= "sack_timeout",
		.data		= &init_net.sctp.sack_timeout,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &sack_timer_min,
		.extra2         = &sack_timer_max,
	},
	{
		.procname	= "hb_interval",
		.data		= &init_net.sctp.hb_interval,
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1         = &one,
		.extra2         = &timer_max
	},
	{
		.procname	= "association_max_retrans",
		.data		= &init_net.sctp.max_retrans_association,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &one,
		.extra2		= &int_max
	},
	{
		.procname	= "path_max_retrans",
		.data		= &init_net.sctp.max_retrans_path,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &one,
		.extra2		= &int_max
	},
	{
		.procname	= "max_init_retransmits",
		.data		= &init_net.sctp.max_retrans_init,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &one,
		.extra2		= &int_max
	},
	{
		.procname	= "pf_retrans",
		.data		= &init_net.sctp.pf_retrans,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &int_max
	},
	{
		.procname	= "sndbuf_policy",
		.data		= &init_net.sctp.sndbuf_policy,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "rcvbuf_policy",
		.data		= &init_net.sctp.rcvbuf_policy,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "default_auto_asconf",
		.data		= &init_net.sctp.default_auto_asconf,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "addip_enable",
		.data		= &init_net.sctp.addip_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "addip_noauth_enable",
		.data		= &init_net.sctp.addip_noauth,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "prsctp_enable",
		.data		= &init_net.sctp.prsctp_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "auth_enable",
		.data		= &init_net.sctp.auth_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec,
	},
	{
		.procname	= "addr_scope_policy",
		.data		= &init_net.sctp.scope_policy,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &addr_scope_max,
	},
	{
		.procname	= "rwnd_update_shift",
		.data		= &init_net.sctp.rwnd_upd_shift,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec_minmax,
		.extra1		= &one,
		.extra2		= &rwnd_scale_max,
	},
	{
		.procname	= "max_autoclose",
		.data		= &init_net.sctp.max_autoclose,
		.maxlen		= sizeof(unsigned long),
		.mode		= 0644,
		.proc_handler	= &proc_doulongvec_minmax,
		.extra1		= &max_autoclose_min,
		.extra2		= &max_autoclose_max,
	},

	{ /* sentinel */ }
};

int sctp_sysctl_net_register(struct net *net)
{
	struct ctl_table *table;
	int i;

	table = kmemdup(sctp_net_table, sizeof(sctp_net_table), GFP_KERNEL);
	if (!table)
		return -ENOMEM;

	for (i = 0; table[i].data; i++)
		table[i].data += (char *)(&net->sctp) - (char *)&init_net.sctp;

	net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
	return 0;
}

void sctp_sysctl_net_unregister(struct net *net)
{
	unregister_net_sysctl_table(net->sctp.sysctl_header);
}

static struct ctl_table_header * sctp_sysctl_header;

/* Sysctl registration.  */
void sctp_sysctl_register(void)
{
	sctp_sysctl_header = register_net_sysctl(&init_net, "net/sctp", sctp_table);
}

/* Sysctl deregistration.  */
void sctp_sysctl_unregister(void)
{
	unregister_net_sysctl_table(sctp_sysctl_header);
}
Commit	Line	Data
60c778b2	1	/* SCTP kernel implementation
1da177e4 LT	2	* (C) Copyright IBM Corp. 2002, 2004
	3	* Copyright (c) 2002 Intel Corp.
	4	*
60c778b2	5	* This file is part of the SCTP kernel implementation
1da177e4 LT	6	*
	7	* Sysctl related interfaces for SCTP.
	8	*
60c778b2	9	* This SCTP implementation is free software;
1da177e4 LT	10	* you can redistribute it and/or modify it under the terms of
	11	* the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2, or (at your option)
	13	* any later version.
	14	*
60c778b2	15	* This SCTP implementation is distributed in the hope that it
1da177e4 LT	16	* will be useful, but WITHOUT ANY WARRANTY; without even the implied
	17	* ************************
	18	* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	19	* See the GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with GNU CC; see the file COPYING. If not, write to
	23	* the Free Software Foundation, 59 Temple Place - Suite 330,
	24	* Boston, MA 02111-1307, USA.
	25	*
	26	* Please send any bug reports or fixes you make to the
	27	* email address(es):
	28	* lksctp developers <lksctp-developers@lists.sourceforge.net>
	29	*
	30	* Or submit a bug report through the following website:
	31	* http://www.sf.net/projects/lksctp
	32	*
	33	* Written or modified by:
	34	* Mingqin Liu <liuming@us.ibm.com>
	35	* Jon Grimm <jgrimm@us.ibm.com>
	36	* Ardelle Fan <ardelle.fan@intel.com>
	37	* Ryan Layer <rmlayer@us.ibm.com>
	38	* Sridhar Samudrala <sri@us.ibm.com>
	39	*
	40	* Any bugs reported given to us we will try to fix... any fixes shared will
	41	* be incorporated into the next SCTP release.
	42	*/
	43
	44	#include <net/sctp/structs.h>
8c5955d8	45	#include <net/sctp/sctp.h>
1da177e4 LT	46	#include <linux/sysctl.h>
1da177e4 LT	47
3fd091e7 VY	48	static int zero = 0;
	49	static int one = 1;
	50	static int timer_max = 86400000; /* ms in one day */
	51	static int int_max = INT_MAX;
d48e074d JMG	52	static int sack_timer_min = 1;
d48e074d JMG	53	static int sack_timer_max = 500;
72388433	54	static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */
90f2f531	55	static int rwnd_scale_max = 16;
2692ba61 XW	56	static unsigned long max_autoclose_min = 0;
	57	static unsigned long max_autoclose_max =
	58	(MAX_SCHEDULE_TIMEOUT / HZ > UINT_MAX)
	59	? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ;
1da177e4	60
8d987e5c	61	extern long sysctl_sctp_mem[3];
007e3936 VY	62	extern int sysctl_sctp_rmem[3];
007e3936 VY	63	extern int sysctl_sctp_wmem[3];
4d93df0a	64
1da177e4	65	static ctl_table sctp_table[] = {
e1fc3b14 EB	66	{
	67	.procname = "sctp_mem",
	68	.data = &sysctl_sctp_mem,
	69	.maxlen = sizeof(sysctl_sctp_mem),
	70	.mode = 0644,
	71	.proc_handler = proc_doulongvec_minmax
	72	},
	73	{
	74	.procname = "sctp_rmem",
	75	.data = &sysctl_sctp_rmem,
	76	.maxlen = sizeof(sysctl_sctp_rmem),
	77	.mode = 0644,
	78	.proc_handler = proc_dointvec,
	79	},
	80	{
	81	.procname = "sctp_wmem",
	82	.data = &sysctl_sctp_wmem,
	83	.maxlen = sizeof(sysctl_sctp_wmem),
	84	.mode = 0644,
	85	.proc_handler = proc_dointvec,
	86	},
	87
	88	{ /* sentinel */ }
	89	};
	90
	91	static ctl_table sctp_net_table[] = {
1da177e4	92	{
1da177e4	93	.procname = "rto_initial",
e1fc3b14	94	.data = &init_net.sctp.rto_initial,
3fd091e7	95	.maxlen = sizeof(unsigned int),
1da177e4	96	.mode = 0644,
6d9f239a	97	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	98	.extra1 = &one,
3fd091e7 VY	99	.extra2 = &timer_max
1da177e4 LT	100	},
1da177e4 LT	101	{
1da177e4	102	.procname = "rto_min",
e1fc3b14	103	.data = &init_net.sctp.rto_min,
3fd091e7	104	.maxlen = sizeof(unsigned int),
1da177e4	105	.mode = 0644,
6d9f239a	106	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	107	.extra1 = &one,
3fd091e7 VY	108	.extra2 = &timer_max
1da177e4 LT	109	},
1da177e4 LT	110	{
1da177e4	111	.procname = "rto_max",
e1fc3b14	112	.data = &init_net.sctp.rto_max,
3fd091e7	113	.maxlen = sizeof(unsigned int),
1da177e4	114	.mode = 0644,
6d9f239a	115	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	116	.extra1 = &one,
3fd091e7 VY	117	.extra2 = &timer_max
1da177e4 LT	118	},
1da177e4 LT	119	{
e1fc3b14 EB	120	.procname = "rto_alpha_exp_divisor",
	121	.data = &init_net.sctp.rto_alpha,
	122	.maxlen = sizeof(int),
	123	.mode = 0444,
	124	.proc_handler = proc_dointvec,
	125	},
	126	{
	127	.procname = "rto_beta_exp_divisor",
	128	.data = &init_net.sctp.rto_beta,
	129	.maxlen = sizeof(int),
	130	.mode = 0444,
	131	.proc_handler = proc_dointvec,
1da177e4 LT	132	},
1da177e4 LT	133	{
1da177e4	134	.procname = "max_burst",
e1fc3b14	135	.data = &init_net.sctp.max_burst,
1da177e4 LT	136	.maxlen = sizeof(int),
1da177e4 LT	137	.mode = 0644,
6d9f239a	138	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	139	.extra1 = &zero,
3fd091e7 VY	140	.extra2 = &int_max
1da177e4 LT	141	},
1da177e4 LT	142	{
e1fc3b14 EB	143	.procname = "cookie_preserve_enable",
e1fc3b14 EB	144	.data = &init_net.sctp.cookie_preserve_enable,
1da177e4 LT	145	.maxlen = sizeof(int),
1da177e4 LT	146	.mode = 0644,
e1fc3b14 EB	147	.proc_handler = proc_dointvec,
	148	},
	149	{
	150	.procname = "valid_cookie_life",
	151	.data = &init_net.sctp.valid_cookie_life,
	152	.maxlen = sizeof(unsigned int),
	153	.mode = 0644,
6d9f239a	154	.proc_handler = proc_dointvec_minmax,
e1fc3b14 EB	155	.extra1 = &one,
e1fc3b14 EB	156	.extra2 = &timer_max
1da177e4	157	},
4eb701df	158	{
e1fc3b14 EB	159	.procname = "sack_timeout",
e1fc3b14 EB	160	.data = &init_net.sctp.sack_timeout,
4eb701df NH	161	.maxlen = sizeof(int),
4eb701df NH	162	.mode = 0644,
e1fc3b14 EB	163	.proc_handler = proc_dointvec_minmax,
	164	.extra1 = &sack_timer_min,
	165	.extra2 = &sack_timer_max,
4eb701df	166	},
049b3ff5	167	{
e1fc3b14 EB	168	.procname = "hb_interval",
	169	.data = &init_net.sctp.hb_interval,
	170	.maxlen = sizeof(unsigned int),
049b3ff5	171	.mode = 0644,
e1fc3b14 EB	172	.proc_handler = proc_dointvec_minmax,
	173	.extra1 = &one,
	174	.extra2 = &timer_max
049b3ff5	175	},
1da177e4	176	{
e1fc3b14 EB	177	.procname = "association_max_retrans",
e1fc3b14 EB	178	.data = &init_net.sctp.max_retrans_association,
1da177e4 LT	179	.maxlen = sizeof(int),
1da177e4 LT	180	.mode = 0644,
6d9f239a	181	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	182	.extra1 = &one,
3fd091e7 VY	183	.extra2 = &int_max
1da177e4	184	},
5aa93bcf	185	{
e1fc3b14 EB	186	.procname = "path_max_retrans",
e1fc3b14 EB	187	.data = &init_net.sctp.max_retrans_path,
5aa93bcf NH	188	.maxlen = sizeof(int),
	189	.mode = 0644,
	190	.proc_handler = proc_dointvec_minmax,
e1fc3b14	191	.extra1 = &one,
5aa93bcf NH	192	.extra2 = &int_max
5aa93bcf NH	193	},
1da177e4	194	{
1da177e4	195	.procname = "max_init_retransmits",
e1fc3b14	196	.data = &init_net.sctp.max_retrans_init,
1da177e4 LT	197	.maxlen = sizeof(int),
1da177e4 LT	198	.mode = 0644,
6d9f239a	199	.proc_handler = proc_dointvec_minmax,
3fd091e7 VY	200	.extra1 = &one,
3fd091e7 VY	201	.extra2 = &int_max
1da177e4 LT	202	},
1da177e4 LT	203	{
e1fc3b14 EB	204	.procname = "pf_retrans",
	205	.data = &init_net.sctp.pf_retrans,
	206	.maxlen = sizeof(int),
1da177e4	207	.mode = 0644,
6d9f239a	208	.proc_handler = proc_dointvec_minmax,
e1fc3b14 EB	209	.extra1 = &zero,
e1fc3b14 EB	210	.extra2 = &int_max
1da177e4 LT	211	},
1da177e4 LT	212	{
e1fc3b14 EB	213	.procname = "sndbuf_policy",
e1fc3b14 EB	214	.data = &init_net.sctp.sndbuf_policy,
8116ffad	215	.maxlen = sizeof(int),
1da177e4	216	.mode = 0644,
6d9f239a	217	.proc_handler = proc_dointvec,
1da177e4 LT	218	},
1da177e4 LT	219	{
e1fc3b14 EB	220	.procname = "rcvbuf_policy",
e1fc3b14 EB	221	.data = &init_net.sctp.rcvbuf_policy,
dd51be0f MH	222	.maxlen = sizeof(int),
	223	.mode = 0644,
	224	.proc_handler = proc_dointvec,
	225	},
	226	{
	227	.procname = "default_auto_asconf",
e1fc3b14	228	.data = &init_net.sctp.default_auto_asconf,
1da177e4 LT	229	.maxlen = sizeof(int),
1da177e4 LT	230	.mode = 0644,
6d9f239a	231	.proc_handler = proc_dointvec,
1da177e4 LT	232	},
1da177e4 LT	233	{
e1fc3b14 EB	234	.procname = "addip_enable",
e1fc3b14 EB	235	.data = &init_net.sctp.addip_enable,
1da177e4 LT	236	.maxlen = sizeof(int),
1da177e4 LT	237	.mode = 0644,
6d9f239a	238	.proc_handler = proc_dointvec,
1da177e4	239	},
2f85a429	240	{
e1fc3b14 EB	241	.procname = "addip_noauth_enable",
e1fc3b14 EB	242	.data = &init_net.sctp.addip_noauth,
d48e074d	243	.maxlen = sizeof(int),
2f85a429	244	.mode = 0644,
6d9f239a	245	.proc_handler = proc_dointvec,
4d93df0a NH	246	},
4d93df0a NH	247	{
e1fc3b14 EB	248	.procname = "prsctp_enable",
e1fc3b14 EB	249	.data = &init_net.sctp.prsctp_enable,
a29a5bd4 VY	250	.maxlen = sizeof(int),
a29a5bd4 VY	251	.mode = 0644,
6d9f239a	252	.proc_handler = proc_dointvec,
a29a5bd4	253	},
73d9c4fd	254	{
e1fc3b14 EB	255	.procname = "auth_enable",
e1fc3b14 EB	256	.data = &init_net.sctp.auth_enable,
73d9c4fd VY	257	.maxlen = sizeof(int),
73d9c4fd VY	258	.mode = 0644,
6d9f239a	259	.proc_handler = proc_dointvec,
73d9c4fd	260	},
72388433	261	{
72388433	262	.procname = "addr_scope_policy",
e1fc3b14	263	.data = &init_net.sctp.scope_policy,
72388433 BD	264	.maxlen = sizeof(int),
72388433 BD	265	.mode = 0644,
6d456111	266	.proc_handler = proc_dointvec_minmax,
72388433 BD	267	.extra1 = &zero,
	268	.extra2 = &addr_scope_max,
	269	},
90f2f531	270	{
90f2f531	271	.procname = "rwnd_update_shift",
e1fc3b14	272	.data = &init_net.sctp.rwnd_upd_shift,
90f2f531 VY	273	.maxlen = sizeof(int),
	274	.mode = 0644,
	275	.proc_handler = &proc_dointvec_minmax,
90f2f531 VY	276	.extra1 = &one,
	277	.extra2 = &rwnd_scale_max,
	278	},
2692ba61 XW	279	{
2692ba61 XW	280	.procname = "max_autoclose",
e1fc3b14	281	.data = &init_net.sctp.max_autoclose,
2692ba61 XW	282	.maxlen = sizeof(unsigned long),
	283	.mode = 0644,
	284	.proc_handler = &proc_doulongvec_minmax,
	285	.extra1 = &max_autoclose_min,
	286	.extra2 = &max_autoclose_max,
	287	},
90f2f531	288
d7fc02c7	289	{ /* sentinel */ }
1da177e4 LT	290	};
1da177e4 LT	291
ebb7e95d EB	292	int sctp_sysctl_net_register(struct net *net)
	293	{
	294	struct ctl_table *table;
e1fc3b14	295	int i;
ebb7e95d EB	296
	297	table = kmemdup(sctp_net_table, sizeof(sctp_net_table), GFP_KERNEL);
	298	if (!table)
	299	return -ENOMEM;
	300
e1fc3b14 EB	301	for (i = 0; table[i].data; i++)
	302	table[i].data += (char )(&net->sctp) - (char )&init_net.sctp;
	303
ebb7e95d EB	304	net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
	305	return 0;
	306	}
	307
	308	void sctp_sysctl_net_unregister(struct net *net)
	309	{
	310	unregister_net_sysctl_table(net->sctp.sysctl_header);
	311	}
	312
1da177e4 LT	313	static struct ctl_table_header * sctp_sysctl_header;
	314
	315	/* Sysctl registration. */
	316	void sctp_sysctl_register(void)
	317	{
ec8f23ce	318	sctp_sysctl_header = register_net_sysctl(&init_net, "net/sctp", sctp_table);
1da177e4 LT	319	}
	320
	321	/* Sysctl deregistration. */
	322	void sctp_sysctl_unregister(void)
	323	{
5dd3df10	324	unregister_net_sysctl_table(sctp_sysctl_header);
1da177e4	325	}