1 /*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com)
8 */
9 #include <linux/mm.h>
10 #include <linux/sysctl.h>
11 #include <linux/init.h>
12 #include <net/ax25.h>
13 #include <net/netrom.h>
14
15 /*
16 * Values taken from NET/ROM documentation.
17 */
18 static int min_quality[] = {0}, max_quality[] = {255};
19 static int min_obs[] = {0}, max_obs[] = {255};
20 static int min_ttl[] = {0}, max_ttl[] = {255};
21 static int min_t1[] = {5 * HZ};
22 static int max_t1[] = {600 * HZ};
23 static int min_n2[] = {2}, max_n2[] = {127};
24 static int min_t2[] = {1 * HZ};
25 static int max_t2[] = {60 * HZ};
26 static int min_t4[] = {1 * HZ};
27 static int max_t4[] = {1000 * HZ};
28 static int min_window[] = {1}, max_window[] = {127};
29 static int min_idle[] = {0 * HZ};
30 static int max_idle[] = {65535 * HZ};
31 static int min_route[] = {0}, max_route[] = {1};
32 static int min_fails[] = {1}, max_fails[] = {10};
33 static int min_reset[] = {0}, max_reset[] = {1};
34
35 static struct ctl_table_header *nr_table_header;
36
37 static struct ctl_table nr_table[] = {
38 {
39 .procname = "default_path_quality",
40 .data = &sysctl_netrom_default_path_quality,
41 .maxlen = sizeof(int),
42 .mode = 0644,
43 .proc_handler = proc_dointvec_minmax,
44 .extra1 = &min_quality,
45 .extra2 = &max_quality
46 },
47 {
48 .procname = "obsolescence_count_initialiser",
49 .data = &sysctl_netrom_obsolescence_count_initialiser,
50 .maxlen = sizeof(int),
51 .mode = 0644,
52 .proc_handler = proc_dointvec_minmax,
53 .extra1 = &min_obs,
54 .extra2 = &max_obs
55 },
56 {
57 .procname = "network_ttl_initialiser",
58 .data = &sysctl_netrom_network_ttl_initialiser,
59 .maxlen = sizeof(int),
60 .mode = 0644,
61 .proc_handler = proc_dointvec_minmax,
62 .extra1 = &min_ttl,
63 .extra2 = &max_ttl
64 },
65 {
66 .procname = "transport_timeout",
67 .data = &sysctl_netrom_transport_timeout,
68 .maxlen = sizeof(int),
69 .mode = 0644,
70 .proc_handler = proc_dointvec_minmax,
71 .extra1 = &min_t1,
72 .extra2 = &max_t1
73 },
74 {
75 .procname = "transport_maximum_tries",
76 .data = &sysctl_netrom_transport_maximum_tries,
77 .maxlen = sizeof(int),
78 .mode = 0644,
79 .proc_handler = proc_dointvec_minmax,
80 .extra1 = &min_n2,
81 .extra2 = &max_n2
82 },
83 {
84 .procname = "transport_acknowledge_delay",
85 .data = &sysctl_netrom_transport_acknowledge_delay,
86 .maxlen = sizeof(int),
87 .mode = 0644,
88 .proc_handler = proc_dointvec_minmax,
89 .extra1 = &min_t2,
90 .extra2 = &max_t2
91 },
92 {
93 .procname = "transport_busy_delay",
94 .data = &sysctl_netrom_transport_busy_delay,
95 .maxlen = sizeof(int),
96 .mode = 0644,
97 .proc_handler = proc_dointvec_minmax,
98 .extra1 = &min_t4,
99 .extra2 = &max_t4
100 },
101 {
102 .procname = "transport_requested_window_size",
103 .data = &sysctl_netrom_transport_requested_window_size,
104 .maxlen = sizeof(int),
105 .mode = 0644,
106 .proc_handler = proc_dointvec_minmax,
107 .extra1 = &min_window,
108 .extra2 = &max_window
109 },
110 {
111 .procname = "transport_no_activity_timeout",
112 .data = &sysctl_netrom_transport_no_activity_timeout,
113 .maxlen = sizeof(int),
114 .mode = 0644,
115 .proc_handler = proc_dointvec_minmax,
116 .extra1 = &min_idle,
117 .extra2 = &max_idle
118 },
119 {
120 .procname = "routing_control",
121 .data = &sysctl_netrom_routing_control,
122 .maxlen = sizeof(int),
123 .mode = 0644,
124 .proc_handler = proc_dointvec_minmax,
125 .extra1 = &min_route,
126 .extra2 = &max_route
127 },
128 {
129 .procname = "link_fails_count",
130 .data = &sysctl_netrom_link_fails_count,
131 .maxlen = sizeof(int),
132 .mode = 0644,
133 .proc_handler = proc_dointvec_minmax,
134 .extra1 = &min_fails,
135 .extra2 = &max_fails
136 },
137 {
138 .procname = "reset",
139 .data = &sysctl_netrom_reset_circuit,
140 .maxlen = sizeof(int),
141 .mode = 0644,
142 .proc_handler = proc_dointvec_minmax,
143 .extra1 = &min_reset,
144 .extra2 = &max_reset
145 },
146 { }
147 };
148
nr_register_sysctl(void)149 void __init nr_register_sysctl(void)
150 {
151 nr_table_header = register_net_sysctl(&init_net, "net/netrom", nr_table);
152 }
153
nr_unregister_sysctl(void)154 void nr_unregister_sysctl(void)
155 {
156 unregister_net_sysctl_table(nr_table_header);
157 }
158