1 // SPDX-License-Identifier: GPL-2.0
2 /* -*- linux-c -*-
3 * sysctl_net_x25.c: sysctl interface to net X.25 subsystem.
4 *
5 * Begun April 1, 1996, Mike Shaver.
6 * Added /proc/sys/net/x25 directory entry (empty =) ). [MS]
7 */
8
9 #include <linux/sysctl.h>
10 #include <linux/skbuff.h>
11 #include <linux/socket.h>
12 #include <linux/netdevice.h>
13 #include <linux/init.h>
14 #include <net/x25.h>
15
16 static int min_timer[] = { 1 * HZ };
17 static int max_timer[] = { 300 * HZ };
18
19 static struct ctl_table_header *x25_table_header;
20
21 static struct ctl_table x25_table[] = {
22 {
23 .procname = "restart_request_timeout",
24 .data = &sysctl_x25_restart_request_timeout,
25 .maxlen = sizeof(int),
26 .mode = 0644,
27 .proc_handler = proc_dointvec_minmax,
28 .extra1 = &min_timer,
29 .extra2 = &max_timer,
30 },
31 {
32 .procname = "call_request_timeout",
33 .data = &sysctl_x25_call_request_timeout,
34 .maxlen = sizeof(int),
35 .mode = 0644,
36 .proc_handler = proc_dointvec_minmax,
37 .extra1 = &min_timer,
38 .extra2 = &max_timer,
39 },
40 {
41 .procname = "reset_request_timeout",
42 .data = &sysctl_x25_reset_request_timeout,
43 .maxlen = sizeof(int),
44 .mode = 0644,
45 .proc_handler = proc_dointvec_minmax,
46 .extra1 = &min_timer,
47 .extra2 = &max_timer,
48 },
49 {
50 .procname = "clear_request_timeout",
51 .data = &sysctl_x25_clear_request_timeout,
52 .maxlen = sizeof(int),
53 .mode = 0644,
54 .proc_handler = proc_dointvec_minmax,
55 .extra1 = &min_timer,
56 .extra2 = &max_timer,
57 },
58 {
59 .procname = "acknowledgement_hold_back_timeout",
60 .data = &sysctl_x25_ack_holdback_timeout,
61 .maxlen = sizeof(int),
62 .mode = 0644,
63 .proc_handler = proc_dointvec_minmax,
64 .extra1 = &min_timer,
65 .extra2 = &max_timer,
66 },
67 {
68 .procname = "x25_forward",
69 .data = &sysctl_x25_forward,
70 .maxlen = sizeof(int),
71 .mode = 0644,
72 .proc_handler = proc_dointvec,
73 },
74 { },
75 };
76
x25_register_sysctl(void)77 int __init x25_register_sysctl(void)
78 {
79 x25_table_header = register_net_sysctl(&init_net, "net/x25", x25_table);
80 if (!x25_table_header)
81 return -ENOMEM;
82 return 0;
83 }
84
x25_unregister_sysctl(void)85 void x25_unregister_sysctl(void)
86 {
87 unregister_net_sysctl_table(x25_table_header);
88 }
89