1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * sysctl_net_llc.c: sysctl interface to LLC net subsystem.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/mm.h>
9*4882a593Smuzhiyun #include <linux/init.h>
10*4882a593Smuzhiyun #include <linux/sysctl.h>
11*4882a593Smuzhiyun #include <net/net_namespace.h>
12*4882a593Smuzhiyun #include <net/llc.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #ifndef CONFIG_SYSCTL
15*4882a593Smuzhiyun #error This file should not be compiled without CONFIG_SYSCTL defined
16*4882a593Smuzhiyun #endif
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun static struct ctl_table llc2_timeout_table[] = {
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun .procname = "ack",
21*4882a593Smuzhiyun .data = &sysctl_llc2_ack_timeout,
22*4882a593Smuzhiyun .maxlen = sizeof(sysctl_llc2_ack_timeout),
23*4882a593Smuzhiyun .mode = 0644,
24*4882a593Smuzhiyun .proc_handler = proc_dointvec_jiffies,
25*4882a593Smuzhiyun },
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun .procname = "busy",
28*4882a593Smuzhiyun .data = &sysctl_llc2_busy_timeout,
29*4882a593Smuzhiyun .maxlen = sizeof(sysctl_llc2_busy_timeout),
30*4882a593Smuzhiyun .mode = 0644,
31*4882a593Smuzhiyun .proc_handler = proc_dointvec_jiffies,
32*4882a593Smuzhiyun },
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun .procname = "p",
35*4882a593Smuzhiyun .data = &sysctl_llc2_p_timeout,
36*4882a593Smuzhiyun .maxlen = sizeof(sysctl_llc2_p_timeout),
37*4882a593Smuzhiyun .mode = 0644,
38*4882a593Smuzhiyun .proc_handler = proc_dointvec_jiffies,
39*4882a593Smuzhiyun },
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun .procname = "rej",
42*4882a593Smuzhiyun .data = &sysctl_llc2_rej_timeout,
43*4882a593Smuzhiyun .maxlen = sizeof(sysctl_llc2_rej_timeout),
44*4882a593Smuzhiyun .mode = 0644,
45*4882a593Smuzhiyun .proc_handler = proc_dointvec_jiffies,
46*4882a593Smuzhiyun },
47*4882a593Smuzhiyun { },
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun static struct ctl_table llc_station_table[] = {
51*4882a593Smuzhiyun { },
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun static struct ctl_table_header *llc2_timeout_header;
55*4882a593Smuzhiyun static struct ctl_table_header *llc_station_header;
56*4882a593Smuzhiyun
llc_sysctl_init(void)57*4882a593Smuzhiyun int __init llc_sysctl_init(void)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun llc2_timeout_header = register_net_sysctl(&init_net, "net/llc/llc2/timeout", llc2_timeout_table);
60*4882a593Smuzhiyun llc_station_header = register_net_sysctl(&init_net, "net/llc/station", llc_station_table);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun if (!llc2_timeout_header || !llc_station_header) {
63*4882a593Smuzhiyun llc_sysctl_exit();
64*4882a593Smuzhiyun return -ENOMEM;
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun return 0;
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
llc_sysctl_exit(void)69*4882a593Smuzhiyun void llc_sysctl_exit(void)
70*4882a593Smuzhiyun {
71*4882a593Smuzhiyun if (llc2_timeout_header) {
72*4882a593Smuzhiyun unregister_net_sysctl_table(llc2_timeout_header);
73*4882a593Smuzhiyun llc2_timeout_header = NULL;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun if (llc_station_header) {
76*4882a593Smuzhiyun unregister_net_sysctl_table(llc_station_header);
77*4882a593Smuzhiyun llc_station_header = NULL;
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun }
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