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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 | 9 | #include <linux/mm.h> |
5a0e3ad6 | 10 | #include <linux/slab.h> |
1da177e4 LT |
11 | #include <linux/sysctl.h> |
12 | #include <linux/spinlock.h> | |
13 | #include <net/ax25.h> | |
14 | ||
15 | static int min_ipdefmode[1], max_ipdefmode[] = {1}; | |
16 | static int min_axdefmode[1], max_axdefmode[] = {1}; | |
17 | static int min_backoff[1], max_backoff[] = {2}; | |
18 | static int min_conmode[1], max_conmode[] = {2}; | |
19 | static int min_window[] = {1}, max_window[] = {7}; | |
20 | static int min_ewindow[] = {1}, max_ewindow[] = {63}; | |
e1fdb5b3 RB |
21 | static int min_t1[] = {1}, max_t1[] = {30000}; |
22 | static int min_t2[] = {1}, max_t2[] = {20000}; | |
23 | static int min_t3[1], max_t3[] = {3600000}; | |
24 | static int min_idle[1], max_idle[] = {65535000}; | |
1da177e4 LT |
25 | static int min_n2[] = {1}, max_n2[] = {31}; |
26 | static int min_paclen[] = {1}, max_paclen[] = {512}; | |
c7c694d1 | 27 | static int min_proto[1], max_proto[] = { AX25_PROTO_MAX }; |
e14bec2e | 28 | #ifdef CONFIG_AX25_DAMA_SLAVE |
e1fdb5b3 | 29 | static int min_ds_timeout[1], max_ds_timeout[] = {65535000}; |
e14bec2e | 30 | #endif |
1da177e4 LT |
31 | |
32 | static struct ctl_table_header *ax25_table_header; | |
33 | ||
34 | static ctl_table *ax25_table; | |
35 | static int ax25_table_size; | |
36 | ||
c6995bdf | 37 | static struct ctl_path ax25_path[] = { |
f8572d8f EB |
38 | { .procname = "net", }, |
39 | { .procname = "ax25", }, | |
c6995bdf | 40 | { } |
1da177e4 | 41 | }; |
ffb20847 | 42 | |
1da177e4 LT |
43 | static const ctl_table ax25_param_table[] = { |
44 | { | |
1da177e4 LT |
45 | .procname = "ip_default_mode", |
46 | .maxlen = sizeof(int), | |
47 | .mode = 0644, | |
6d9f239a | 48 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
49 | .extra1 = &min_ipdefmode, |
50 | .extra2 = &max_ipdefmode | |
51 | }, | |
52 | { | |
1da177e4 LT |
53 | .procname = "ax25_default_mode", |
54 | .maxlen = sizeof(int), | |
55 | .mode = 0644, | |
6d9f239a | 56 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
57 | .extra1 = &min_axdefmode, |
58 | .extra2 = &max_axdefmode | |
59 | }, | |
60 | { | |
1da177e4 LT |
61 | .procname = "backoff_type", |
62 | .maxlen = sizeof(int), | |
63 | .mode = 0644, | |
6d9f239a | 64 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
65 | .extra1 = &min_backoff, |
66 | .extra2 = &max_backoff | |
67 | }, | |
68 | { | |
1da177e4 LT |
69 | .procname = "connect_mode", |
70 | .maxlen = sizeof(int), | |
71 | .mode = 0644, | |
6d9f239a | 72 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
73 | .extra1 = &min_conmode, |
74 | .extra2 = &max_conmode | |
75 | }, | |
76 | { | |
1da177e4 LT |
77 | .procname = "standard_window_size", |
78 | .maxlen = sizeof(int), | |
79 | .mode = 0644, | |
6d9f239a | 80 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
81 | .extra1 = &min_window, |
82 | .extra2 = &max_window | |
83 | }, | |
84 | { | |
1da177e4 LT |
85 | .procname = "extended_window_size", |
86 | .maxlen = sizeof(int), | |
87 | .mode = 0644, | |
6d9f239a | 88 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
89 | .extra1 = &min_ewindow, |
90 | .extra2 = &max_ewindow | |
91 | }, | |
92 | { | |
1da177e4 LT |
93 | .procname = "t1_timeout", |
94 | .maxlen = sizeof(int), | |
95 | .mode = 0644, | |
6d9f239a | 96 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
97 | .extra1 = &min_t1, |
98 | .extra2 = &max_t1 | |
99 | }, | |
100 | { | |
1da177e4 LT |
101 | .procname = "t2_timeout", |
102 | .maxlen = sizeof(int), | |
103 | .mode = 0644, | |
6d9f239a | 104 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
105 | .extra1 = &min_t2, |
106 | .extra2 = &max_t2 | |
107 | }, | |
108 | { | |
1da177e4 LT |
109 | .procname = "t3_timeout", |
110 | .maxlen = sizeof(int), | |
111 | .mode = 0644, | |
6d9f239a | 112 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
113 | .extra1 = &min_t3, |
114 | .extra2 = &max_t3 | |
115 | }, | |
116 | { | |
1da177e4 LT |
117 | .procname = "idle_timeout", |
118 | .maxlen = sizeof(int), | |
119 | .mode = 0644, | |
6d9f239a | 120 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
121 | .extra1 = &min_idle, |
122 | .extra2 = &max_idle | |
123 | }, | |
124 | { | |
1da177e4 LT |
125 | .procname = "maximum_retry_count", |
126 | .maxlen = sizeof(int), | |
127 | .mode = 0644, | |
6d9f239a | 128 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
129 | .extra1 = &min_n2, |
130 | .extra2 = &max_n2 | |
131 | }, | |
132 | { | |
1da177e4 LT |
133 | .procname = "maximum_packet_length", |
134 | .maxlen = sizeof(int), | |
135 | .mode = 0644, | |
6d9f239a | 136 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
137 | .extra1 = &min_paclen, |
138 | .extra2 = &max_paclen | |
139 | }, | |
140 | { | |
1da177e4 LT |
141 | .procname = "protocol", |
142 | .maxlen = sizeof(int), | |
143 | .mode = 0644, | |
6d9f239a | 144 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
145 | .extra1 = &min_proto, |
146 | .extra2 = &max_proto | |
147 | }, | |
ffb20847 | 148 | #ifdef CONFIG_AX25_DAMA_SLAVE |
1da177e4 | 149 | { |
1da177e4 LT |
150 | .procname = "dama_slave_timeout", |
151 | .maxlen = sizeof(int), | |
152 | .mode = 0644, | |
6d9f239a | 153 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
154 | .extra1 = &min_ds_timeout, |
155 | .extra2 = &max_ds_timeout | |
156 | }, | |
ffb20847 RB |
157 | #endif |
158 | ||
f8572d8f | 159 | { } /* that's all, folks! */ |
1da177e4 LT |
160 | }; |
161 | ||
162 | void ax25_register_sysctl(void) | |
163 | { | |
164 | ax25_dev *ax25_dev; | |
165 | int n, k; | |
166 | ||
167 | spin_lock_bh(&ax25_dev_lock); | |
168 | for (ax25_table_size = sizeof(ctl_table), ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) | |
169 | ax25_table_size += sizeof(ctl_table); | |
170 | ||
0da974f4 | 171 | if ((ax25_table = kzalloc(ax25_table_size, GFP_ATOMIC)) == NULL) { |
1da177e4 LT |
172 | spin_unlock_bh(&ax25_dev_lock); |
173 | return; | |
174 | } | |
175 | ||
1da177e4 | 176 | for (n = 0, ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) { |
0459d70a ACM |
177 | struct ctl_table *child = kmemdup(ax25_param_table, |
178 | sizeof(ax25_param_table), | |
179 | GFP_ATOMIC); | |
1da177e4 LT |
180 | if (!child) { |
181 | while (n--) | |
182 | kfree(ax25_table[n].child); | |
183 | kfree(ax25_table); | |
184 | spin_unlock_bh(&ax25_dev_lock); | |
185 | return; | |
186 | } | |
1da177e4 | 187 | ax25_table[n].child = ax25_dev->systable = child; |
1da177e4 LT |
188 | ax25_table[n].procname = ax25_dev->dev->name; |
189 | ax25_table[n].mode = 0555; | |
190 | ||
1da177e4 LT |
191 | |
192 | for (k = 0; k < AX25_MAX_VALUES; k++) | |
193 | child[k].data = &ax25_dev->values[k]; | |
194 | ||
195 | n++; | |
196 | } | |
197 | spin_unlock_bh(&ax25_dev_lock); | |
198 | ||
c6995bdf | 199 | ax25_table_header = register_sysctl_paths(ax25_path, ax25_table); |
1da177e4 LT |
200 | } |
201 | ||
202 | void ax25_unregister_sysctl(void) | |
203 | { | |
204 | ctl_table *p; | |
205 | unregister_sysctl_table(ax25_table_header); | |
206 | ||
f8572d8f | 207 | for (p = ax25_table; p->procname; p++) |
1da177e4 LT |
208 | kfree(p->child); |
209 | kfree(ax25_table); | |
210 | } |