1/*
2 * net/tipc/sysctl.c: sysctl interface to TIPC subsystem
3 *
4 * Copyright (c) 2013, Wind River Systems
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the names of the copyright holders nor the names of its
16 *    contributors may be used to endorse or promote products derived from
17 *    this software without specific prior written permission.
18 *
19 * Alternatively, this software may be distributed under the terms of the
20 * GNU General Public License ("GPL") version 2 as published by the Free
21 * Software Foundation.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36#include "core.h"
37#include "trace.h"
38#include "crypto.h"
39#include "bcast.h"
40#include <linux/sysctl.h>
41
42static struct ctl_table_header *tipc_ctl_hdr;
43
44static struct ctl_table tipc_table[] = {
45	{
46		.procname	= "tipc_rmem",
47		.data		= &sysctl_tipc_rmem,
48		.maxlen		= sizeof(sysctl_tipc_rmem),
49		.mode		= 0644,
50		.proc_handler	= proc_dointvec_minmax,
51		.extra1         = SYSCTL_ONE,
52	},
53	{
54		.procname	= "named_timeout",
55		.data		= &sysctl_tipc_named_timeout,
56		.maxlen		= sizeof(sysctl_tipc_named_timeout),
57		.mode		= 0644,
58		.proc_handler	= proc_dointvec_minmax,
59		.extra1         = SYSCTL_ZERO,
60	},
61	{
62		.procname       = "sk_filter",
63		.data           = &sysctl_tipc_sk_filter,
64		.maxlen         = sizeof(sysctl_tipc_sk_filter),
65		.mode           = 0644,
66		.proc_handler   = proc_doulongvec_minmax,
67	},
68#ifdef CONFIG_TIPC_CRYPTO
69	{
70		.procname	= "max_tfms",
71		.data		= &sysctl_tipc_max_tfms,
72		.maxlen		= sizeof(sysctl_tipc_max_tfms),
73		.mode		= 0644,
74		.proc_handler	= proc_dointvec_minmax,
75		.extra1         = SYSCTL_ONE,
76	},
77	{
78		.procname	= "key_exchange_enabled",
79		.data		= &sysctl_tipc_key_exchange_enabled,
80		.maxlen		= sizeof(sysctl_tipc_key_exchange_enabled),
81		.mode		= 0644,
82		.proc_handler	= proc_dointvec_minmax,
83		.extra1         = SYSCTL_ZERO,
84		.extra2         = SYSCTL_ONE,
85	},
86#endif
87	{
88		.procname	= "bc_retruni",
89		.data		= &sysctl_tipc_bc_retruni,
90		.maxlen		= sizeof(sysctl_tipc_bc_retruni),
91		.mode		= 0644,
92		.proc_handler	= proc_doulongvec_minmax,
93	},
94	{}
95};
96
97int tipc_register_sysctl(void)
98{
99	tipc_ctl_hdr = register_net_sysctl(&init_net, "net/tipc", tipc_table);
100	if (tipc_ctl_hdr == NULL)
101		return -ENOMEM;
102	return 0;
103}
104
105void tipc_unregister_sysctl(void)
106{
107	unregister_net_sysctl_table(tipc_ctl_hdr);
108}
109