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

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