sysctl.c 7.6 KB
Newer Older
1
/* SCTP kernel implementation
L
Linus Torvalds 已提交
2 3 4
 * (C) Copyright IBM Corp. 2002, 2004
 * Copyright (c) 2002 Intel Corp.
 *
5
 * This file is part of the SCTP kernel implementation
L
Linus Torvalds 已提交
6 7 8
 *
 * Sysctl related interfaces for SCTP.
 *
9
 * This SCTP implementation is free software;
L
Linus Torvalds 已提交
10 11 12 13 14
 * 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.
 *
15
 * This SCTP implementation is distributed in the hope that it
L
Linus Torvalds 已提交
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
 * 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>
45
#include <net/sctp/sctp.h>
L
Linus Torvalds 已提交
46 47
#include <linux/sysctl.h>

48 49 50 51
static int zero = 0;
static int one = 1;
static int timer_max = 86400000; /* ms in one day */
static int int_max = INT_MAX;
52 53
static long sack_timer_min = 1;
static long sack_timer_max = 500;
L
Linus Torvalds 已提交
54

55 56 57
extern int sysctl_sctp_mem[3];
extern int sysctl_sctp_rmem[3];
extern int sysctl_sctp_wmem[3];
58

L
Linus Torvalds 已提交
59 60 61 62 63
static ctl_table sctp_table[] = {
	{
		.ctl_name	= NET_SCTP_RTO_INITIAL,
		.procname	= "rto_initial",
		.data		= &sctp_rto_initial,
64
		.maxlen		= sizeof(unsigned int),
L
Linus Torvalds 已提交
65
		.mode		= 0644,
66 67 68 69
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1         = &one,
		.extra2         = &timer_max
L
Linus Torvalds 已提交
70 71 72 73 74
	},
	{
		.ctl_name	= NET_SCTP_RTO_MIN,
		.procname	= "rto_min",
		.data		= &sctp_rto_min,
75
		.maxlen		= sizeof(unsigned int),
L
Linus Torvalds 已提交
76
		.mode		= 0644,
77 78 79 80
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1         = &one,
		.extra2         = &timer_max
L
Linus Torvalds 已提交
81 82 83 84 85
	},
	{
		.ctl_name	= NET_SCTP_RTO_MAX,
		.procname	= "rto_max",
		.data		= &sctp_rto_max,
86
		.maxlen		= sizeof(unsigned int),
L
Linus Torvalds 已提交
87
		.mode		= 0644,
88 89 90 91
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1         = &one,
		.extra2         = &timer_max
L
Linus Torvalds 已提交
92 93 94 95 96
	},
	{
		.ctl_name	= NET_SCTP_VALID_COOKIE_LIFE,
		.procname	= "valid_cookie_life",
		.data		= &sctp_valid_cookie_life,
97
		.maxlen		= sizeof(unsigned int),
L
Linus Torvalds 已提交
98
		.mode		= 0644,
99 100 101 102
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1         = &one,
		.extra2         = &timer_max
L
Linus Torvalds 已提交
103 104 105 106 107 108 109
	},
	{
		.ctl_name	= NET_SCTP_MAX_BURST,
		.procname	= "max_burst",
		.data		= &sctp_max_burst,
		.maxlen		= sizeof(int),
		.mode		= 0644,
110 111 112 113
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1		= &zero,
		.extra2		= &int_max
L
Linus Torvalds 已提交
114 115 116 117 118 119 120
	},
	{
		.ctl_name	= NET_SCTP_ASSOCIATION_MAX_RETRANS,
		.procname	= "association_max_retrans",
		.data		= &sctp_max_retrans_association,
		.maxlen		= sizeof(int),
		.mode		= 0644,
121 122 123 124
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1		= &one,
		.extra2		= &int_max
L
Linus Torvalds 已提交
125
	},
126 127 128 129 130 131
	{
		.ctl_name	= NET_SCTP_SNDBUF_POLICY,
		.procname	= "sndbuf_policy",
		.data		= &sctp_sndbuf_policy,
		.maxlen		= sizeof(int),
		.mode		= 0644,
132 133
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
134
	},
135 136 137 138 139 140
	{
		.ctl_name	= NET_SCTP_RCVBUF_POLICY,
		.procname	= "rcvbuf_policy",
		.data		= &sctp_rcvbuf_policy,
		.maxlen		= sizeof(int),
		.mode		= 0644,
141 142
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
143
	},
L
Linus Torvalds 已提交
144 145 146 147 148 149
	{
		.ctl_name	= NET_SCTP_PATH_MAX_RETRANS,
		.procname	= "path_max_retrans",
		.data		= &sctp_max_retrans_path,
		.maxlen		= sizeof(int),
		.mode		= 0644,
150 151 152 153
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1		= &one,
		.extra2		= &int_max
L
Linus Torvalds 已提交
154 155 156 157 158 159 160
	},
	{
		.ctl_name	= NET_SCTP_MAX_INIT_RETRANSMITS,
		.procname	= "max_init_retransmits",
		.data		= &sctp_max_retrans_init,
		.maxlen		= sizeof(int),
		.mode		= 0644,
161 162 163 164
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1		= &one,
		.extra2		= &int_max
L
Linus Torvalds 已提交
165 166 167 168 169
	},
	{
		.ctl_name	= NET_SCTP_HB_INTERVAL,
		.procname	= "hb_interval",
		.data		= &sctp_hb_interval,
170
		.maxlen		= sizeof(unsigned int),
L
Linus Torvalds 已提交
171
		.mode		= 0644,
172 173 174 175
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
		.extra1         = &one,
		.extra2         = &timer_max
L
Linus Torvalds 已提交
176 177 178 179 180
	},
	{
		.ctl_name	= NET_SCTP_PRESERVE_ENABLE,
		.procname	= "cookie_preserve_enable",
		.data		= &sctp_cookie_preserve_enable,
181
		.maxlen		= sizeof(int),
L
Linus Torvalds 已提交
182
		.mode		= 0644,
183 184
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
L
Linus Torvalds 已提交
185 186 187 188 189 190
	},
	{
		.ctl_name	= NET_SCTP_RTO_ALPHA,
		.procname	= "rto_alpha_exp_divisor",
		.data		= &sctp_rto_alpha,
		.maxlen		= sizeof(int),
191 192 193
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
L
Linus Torvalds 已提交
194 195 196 197 198 199
	},
	{
		.ctl_name	= NET_SCTP_RTO_BETA,
		.procname	= "rto_beta_exp_divisor",
		.data		= &sctp_rto_beta,
		.maxlen		= sizeof(int),
200 201 202
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
L
Linus Torvalds 已提交
203 204 205 206 207 208 209
	},
	{
		.ctl_name	= NET_SCTP_ADDIP_ENABLE,
		.procname	= "addip_enable",
		.data		= &sctp_addip_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
210 211
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
L
Linus Torvalds 已提交
212 213 214 215 216 217 218
	},
	{
		.ctl_name	= NET_SCTP_PRSCTP_ENABLE,
		.procname	= "prsctp_enable",
		.data		= &sctp_prsctp_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
219 220
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
L
Linus Torvalds 已提交
221
	},
222 223 224 225 226 227
	{
		.ctl_name	= NET_SCTP_SACK_TIMEOUT,
		.procname	= "sack_timeout",
		.data		= &sctp_sack_timeout,
		.maxlen		= sizeof(long),
		.mode		= 0644,
228 229
		.proc_handler	= &proc_dointvec_minmax,
		.strategy	= &sysctl_intvec,
230 231 232
		.extra1         = &sack_timer_min,
		.extra2         = &sack_timer_max,
	},
233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
	{
		.ctl_name	= CTL_UNNUMBERED,
		.procname	= "sctp_mem",
		.data		= &sysctl_sctp_mem,
		.maxlen		= sizeof(sysctl_sctp_mem),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
	{
		.ctl_name	= CTL_UNNUMBERED,
		.procname	= "sctp_rmem",
		.data		= &sysctl_sctp_rmem,
		.maxlen		= sizeof(sysctl_sctp_rmem),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
	{
		.ctl_name	= CTL_UNNUMBERED,
		.procname	= "sctp_wmem",
		.data		= &sysctl_sctp_wmem,
		.maxlen		= sizeof(sysctl_sctp_wmem),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
257 258 259 260 261 262 263 264 265
	{
		.ctl_name	= CTL_UNNUMBERED,
		.procname	= "auth_enable",
		.data		= &sctp_auth_enable,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
	},
266 267 268 269 270 271 272 273 274
	{
		.ctl_name	= CTL_UNNUMBERED,
		.procname	= "addip_noauth_enable",
		.data		= &sctp_addip_noauth,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
		.strategy	= &sysctl_intvec
	},
L
Linus Torvalds 已提交
275 276 277
	{ .ctl_name = 0 }
};

278 279 280 281
static struct ctl_path sctp_path[] = {
	{ .procname = "net", .ctl_name = CTL_NET, },
	{ .procname = "sctp", .ctl_name = NET_SCTP, },
	{ }
L
Linus Torvalds 已提交
282 283 284 285 286 287 288
};

static struct ctl_table_header * sctp_sysctl_header;

/* Sysctl registration.  */
void sctp_sysctl_register(void)
{
289
	sctp_sysctl_header = register_sysctl_paths(sctp_path, sctp_table);
L
Linus Torvalds 已提交
290 291 292 293 294 295 296
}

/* Sysctl deregistration.  */
void sctp_sysctl_unregister(void)
{
	unregister_sysctl_table(sctp_sysctl_header);
}