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1da177e4 LT |
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 | */ | |
1da177e4 LT |
9 | #include <linux/mm.h> |
10 | #include <linux/sysctl.h> | |
11 | #include <linux/spinlock.h> | |
12 | #include <net/ax25.h> | |
13 | ||
14 | static int min_ipdefmode[1], max_ipdefmode[] = {1}; | |
15 | static int min_axdefmode[1], max_axdefmode[] = {1}; | |
16 | static int min_backoff[1], max_backoff[] = {2}; | |
17 | static int min_conmode[1], max_conmode[] = {2}; | |
18 | static int min_window[] = {1}, max_window[] = {7}; | |
19 | static int min_ewindow[] = {1}, max_ewindow[] = {63}; | |
e1fdb5b3 RB |
20 | static int min_t1[] = {1}, max_t1[] = {30000}; |
21 | static int min_t2[] = {1}, max_t2[] = {20000}; | |
22 | static int min_t3[1], max_t3[] = {3600000}; | |
23 | static int min_idle[1], max_idle[] = {65535000}; | |
1da177e4 LT |
24 | static int min_n2[] = {1}, max_n2[] = {31}; |
25 | static int min_paclen[] = {1}, max_paclen[] = {512}; | |
c7c694d1 | 26 | static int min_proto[1], max_proto[] = { AX25_PROTO_MAX }; |
e14bec2e | 27 | #ifdef CONFIG_AX25_DAMA_SLAVE |
e1fdb5b3 | 28 | static int min_ds_timeout[1], max_ds_timeout[] = {65535000}; |
e14bec2e | 29 | #endif |
1da177e4 LT |
30 | |
31 | static struct ctl_table_header *ax25_table_header; | |
32 | ||
33 | static ctl_table *ax25_table; | |
34 | static int ax25_table_size; | |
35 | ||
c6995bdf | 36 | static struct ctl_path ax25_path[] = { |
f8572d8f EB |
37 | { .procname = "net", }, |
38 | { .procname = "ax25", }, | |
c6995bdf | 39 | { } |
1da177e4 | 40 | }; |
ffb20847 | 41 | |
1da177e4 LT |
42 | static const ctl_table ax25_param_table[] = { |
43 | { | |
1da177e4 LT |
44 | .procname = "ip_default_mode", |
45 | .maxlen = sizeof(int), | |
46 | .mode = 0644, | |
6d9f239a | 47 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
48 | .extra1 = &min_ipdefmode, |
49 | .extra2 = &max_ipdefmode | |
50 | }, | |
51 | { | |
1da177e4 LT |
52 | .procname = "ax25_default_mode", |
53 | .maxlen = sizeof(int), | |
54 | .mode = 0644, | |
6d9f239a | 55 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
56 | .extra1 = &min_axdefmode, |
57 | .extra2 = &max_axdefmode | |
58 | }, | |
59 | { | |
1da177e4 LT |
60 | .procname = "backoff_type", |
61 | .maxlen = sizeof(int), | |
62 | .mode = 0644, | |
6d9f239a | 63 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
64 | .extra1 = &min_backoff, |
65 | .extra2 = &max_backoff | |
66 | }, | |
67 | { | |
1da177e4 LT |
68 | .procname = "connect_mode", |
69 | .maxlen = sizeof(int), | |
70 | .mode = 0644, | |
6d9f239a | 71 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
72 | .extra1 = &min_conmode, |
73 | .extra2 = &max_conmode | |
74 | }, | |
75 | { | |
1da177e4 LT |
76 | .procname = "standard_window_size", |
77 | .maxlen = sizeof(int), | |
78 | .mode = 0644, | |
6d9f239a | 79 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
80 | .extra1 = &min_window, |
81 | .extra2 = &max_window | |
82 | }, | |
83 | { | |
1da177e4 LT |
84 | .procname = "extended_window_size", |
85 | .maxlen = sizeof(int), | |
86 | .mode = 0644, | |
6d9f239a | 87 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
88 | .extra1 = &min_ewindow, |
89 | .extra2 = &max_ewindow | |
90 | }, | |
91 | { | |
1da177e4 LT |
92 | .procname = "t1_timeout", |
93 | .maxlen = sizeof(int), | |
94 | .mode = 0644, | |
6d9f239a | 95 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
96 | .extra1 = &min_t1, |
97 | .extra2 = &max_t1 | |
98 | }, | |
99 | { | |
1da177e4 LT |
100 | .procname = "t2_timeout", |
101 | .maxlen = sizeof(int), | |
102 | .mode = 0644, | |
6d9f239a | 103 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
104 | .extra1 = &min_t2, |
105 | .extra2 = &max_t2 | |
106 | }, | |
107 | { | |
1da177e4 LT |
108 | .procname = "t3_timeout", |
109 | .maxlen = sizeof(int), | |
110 | .mode = 0644, | |
6d9f239a | 111 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
112 | .extra1 = &min_t3, |
113 | .extra2 = &max_t3 | |
114 | }, | |
115 | { | |
1da177e4 LT |
116 | .procname = "idle_timeout", |
117 | .maxlen = sizeof(int), | |
118 | .mode = 0644, | |
6d9f239a | 119 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
120 | .extra1 = &min_idle, |
121 | .extra2 = &max_idle | |
122 | }, | |
123 | { | |
1da177e4 LT |
124 | .procname = "maximum_retry_count", |
125 | .maxlen = sizeof(int), | |
126 | .mode = 0644, | |
6d9f239a | 127 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
128 | .extra1 = &min_n2, |
129 | .extra2 = &max_n2 | |
130 | }, | |
131 | { | |
1da177e4 LT |
132 | .procname = "maximum_packet_length", |
133 | .maxlen = sizeof(int), | |
134 | .mode = 0644, | |
6d9f239a | 135 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
136 | .extra1 = &min_paclen, |
137 | .extra2 = &max_paclen | |
138 | }, | |
139 | { | |
1da177e4 LT |
140 | .procname = "protocol", |
141 | .maxlen = sizeof(int), | |
142 | .mode = 0644, | |
6d9f239a | 143 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
144 | .extra1 = &min_proto, |
145 | .extra2 = &max_proto | |
146 | }, | |
ffb20847 | 147 | #ifdef CONFIG_AX25_DAMA_SLAVE |
1da177e4 | 148 | { |
1da177e4 LT |
149 | .procname = "dama_slave_timeout", |
150 | .maxlen = sizeof(int), | |
151 | .mode = 0644, | |
6d9f239a | 152 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
153 | .extra1 = &min_ds_timeout, |
154 | .extra2 = &max_ds_timeout | |
155 | }, | |
ffb20847 RB |
156 | #endif |
157 | ||
f8572d8f | 158 | { } /* that's all, folks! */ |
1da177e4 LT |
159 | }; |
160 | ||
161 | void ax25_register_sysctl(void) | |
162 | { | |
163 | ax25_dev *ax25_dev; | |
164 | int n, k; | |
165 | ||
166 | spin_lock_bh(&ax25_dev_lock); | |
167 | for (ax25_table_size = sizeof(ctl_table), ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) | |
168 | ax25_table_size += sizeof(ctl_table); | |
169 | ||
0da974f4 | 170 | if ((ax25_table = kzalloc(ax25_table_size, GFP_ATOMIC)) == NULL) { |
1da177e4 LT |
171 | spin_unlock_bh(&ax25_dev_lock); |
172 | return; | |
173 | } | |
174 | ||
1da177e4 | 175 | for (n = 0, ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) { |
0459d70a ACM |
176 | struct ctl_table *child = kmemdup(ax25_param_table, |
177 | sizeof(ax25_param_table), | |
178 | GFP_ATOMIC); | |
1da177e4 LT |
179 | if (!child) { |
180 | while (n--) | |
181 | kfree(ax25_table[n].child); | |
182 | kfree(ax25_table); | |
183 | spin_unlock_bh(&ax25_dev_lock); | |
184 | return; | |
185 | } | |
1da177e4 | 186 | ax25_table[n].child = ax25_dev->systable = child; |
1da177e4 LT |
187 | ax25_table[n].procname = ax25_dev->dev->name; |
188 | ax25_table[n].mode = 0555; | |
189 | ||
1da177e4 LT |
190 | |
191 | for (k = 0; k < AX25_MAX_VALUES; k++) | |
192 | child[k].data = &ax25_dev->values[k]; | |
193 | ||
194 | n++; | |
195 | } | |
196 | spin_unlock_bh(&ax25_dev_lock); | |
197 | ||
c6995bdf | 198 | ax25_table_header = register_sysctl_paths(ax25_path, ax25_table); |
1da177e4 LT |
199 | } |
200 | ||
201 | void ax25_unregister_sysctl(void) | |
202 | { | |
203 | ctl_table *p; | |
204 | unregister_sysctl_table(ax25_table_header); | |
205 | ||
f8572d8f | 206 | for (p = ax25_table; p->procname; p++) |
1da177e4 LT |
207 | kfree(p->child); |
208 | kfree(ax25_table); | |
209 | } |