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v3.15
  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 */
  9#include <linux/mm.h>
 10#include <linux/slab.h>
 11#include <linux/sysctl.h>
 12#include <linux/spinlock.h>
 13#include <net/ax25.h>
 14
 15static int min_ipdefmode[1],    	max_ipdefmode[] = {1};
 16static int min_axdefmode[1],            max_axdefmode[] = {1};
 17static int min_backoff[1],		max_backoff[] = {2};
 18static int min_conmode[1],		max_conmode[] = {2};
 19static int min_window[] = {1},		max_window[] = {7};
 20static int min_ewindow[] = {1},		max_ewindow[] = {63};
 21static int min_t1[] = {1},		max_t1[] = {30000};
 22static int min_t2[] = {1},		max_t2[] = {20000};
 23static int min_t3[1],			max_t3[] = {3600000};
 24static int min_idle[1],			max_idle[] = {65535000};
 25static int min_n2[] = {1},		max_n2[] = {31};
 26static int min_paclen[] = {1},		max_paclen[] = {512};
 27static int min_proto[1],		max_proto[] = { AX25_PROTO_MAX };
 28#ifdef CONFIG_AX25_DAMA_SLAVE
 29static int min_ds_timeout[1],		max_ds_timeout[] = {65535000};
 30#endif
 31
 32static const struct ctl_table ax25_param_table[] = {
 33	{
 34		.procname	= "ip_default_mode",
 35		.maxlen		= sizeof(int),
 36		.mode		= 0644,
 37		.proc_handler	= proc_dointvec_minmax,
 38		.extra1		= &min_ipdefmode,
 39		.extra2		= &max_ipdefmode
 40	},
 41	{
 42		.procname	= "ax25_default_mode",
 43		.maxlen		= sizeof(int),
 44		.mode		= 0644,
 45		.proc_handler	= proc_dointvec_minmax,
 46		.extra1		= &min_axdefmode,
 47		.extra2		= &max_axdefmode
 48	},
 49	{
 50		.procname	= "backoff_type",
 51		.maxlen		= sizeof(int),
 52		.mode		= 0644,
 53		.proc_handler	= proc_dointvec_minmax,
 54		.extra1		= &min_backoff,
 55		.extra2		= &max_backoff
 56	},
 57	{
 58		.procname	= "connect_mode",
 59		.maxlen		= sizeof(int),
 60		.mode		= 0644,
 61		.proc_handler	= proc_dointvec_minmax,
 62		.extra1		= &min_conmode,
 63		.extra2		= &max_conmode
 64	},
 65	{
 66		.procname	= "standard_window_size",
 67		.maxlen		= sizeof(int),
 68		.mode		= 0644,
 69		.proc_handler	= proc_dointvec_minmax,
 70		.extra1		= &min_window,
 71		.extra2		= &max_window
 72	},
 73	{
 74		.procname	= "extended_window_size",
 75		.maxlen		= sizeof(int),
 76		.mode		= 0644,
 77		.proc_handler	= proc_dointvec_minmax,
 78		.extra1		= &min_ewindow,
 79		.extra2		= &max_ewindow
 80	},
 81	{
 82		.procname	= "t1_timeout",
 83		.maxlen		= sizeof(int),
 84		.mode		= 0644,
 85		.proc_handler	= proc_dointvec_minmax,
 86		.extra1		= &min_t1,
 87		.extra2		= &max_t1
 88	},
 89	{
 90		.procname	= "t2_timeout",
 91		.maxlen		= sizeof(int),
 92		.mode		= 0644,
 93		.proc_handler	= proc_dointvec_minmax,
 94		.extra1		= &min_t2,
 95		.extra2		= &max_t2
 96	},
 97	{
 98		.procname	= "t3_timeout",
 99		.maxlen		= sizeof(int),
100		.mode		= 0644,
101		.proc_handler	= proc_dointvec_minmax,
102		.extra1		= &min_t3,
103		.extra2		= &max_t3
104	},
105	{
106		.procname	= "idle_timeout",
107		.maxlen		= sizeof(int),
108		.mode		= 0644,
109		.proc_handler	= proc_dointvec_minmax,
110		.extra1		= &min_idle,
111		.extra2		= &max_idle
112	},
113	{
114		.procname	= "maximum_retry_count",
115		.maxlen		= sizeof(int),
116		.mode		= 0644,
117		.proc_handler	= proc_dointvec_minmax,
118		.extra1		= &min_n2,
119		.extra2		= &max_n2
120	},
121	{
122		.procname	= "maximum_packet_length",
123		.maxlen		= sizeof(int),
124		.mode		= 0644,
125		.proc_handler	= proc_dointvec_minmax,
126		.extra1		= &min_paclen,
127		.extra2		= &max_paclen
128	},
129	{
130		.procname	= "protocol",
131		.maxlen		= sizeof(int),
132		.mode		= 0644,
133		.proc_handler	= proc_dointvec_minmax,
134		.extra1		= &min_proto,
135		.extra2		= &max_proto
136	},
137#ifdef CONFIG_AX25_DAMA_SLAVE
138	{
139		.procname	= "dama_slave_timeout",
140		.maxlen		= sizeof(int),
141		.mode		= 0644,
142		.proc_handler	= proc_dointvec_minmax,
143		.extra1		= &min_ds_timeout,
144		.extra2		= &max_ds_timeout
145	},
146#endif
147
148	{ }	/* that's all, folks! */
149};
150
151int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
152{
153	char path[sizeof("net/ax25/") + IFNAMSIZ];
154	int k;
155	struct ctl_table *table;
156
157	table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
158	if (!table)
159		return -ENOMEM;
160
161	for (k = 0; k < AX25_MAX_VALUES; k++)
162		table[k].data = &ax25_dev->values[k];
163
164	snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name);
165	ax25_dev->sysheader = register_net_sysctl(&init_net, path, table);
166	if (!ax25_dev->sysheader) {
167		kfree(table);
168		return -ENOMEM;
169	}
170	return 0;
171}
172
173void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
174{
175	struct ctl_table_header *header = ax25_dev->sysheader;
176	struct ctl_table *table;
177
178	if (header) {
179		ax25_dev->sysheader = NULL;
180		table = header->ctl_table_arg;
181		unregister_net_sysctl_table(header);
182		kfree(table);
183	}
184}
v4.17
  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 */
  9#include <linux/mm.h>
 10#include <linux/slab.h>
 11#include <linux/sysctl.h>
 12#include <linux/spinlock.h>
 13#include <net/ax25.h>
 14
 15static int min_ipdefmode[1],    	max_ipdefmode[] = {1};
 16static int min_axdefmode[1],            max_axdefmode[] = {1};
 17static int min_backoff[1],		max_backoff[] = {2};
 18static int min_conmode[1],		max_conmode[] = {2};
 19static int min_window[] = {1},		max_window[] = {7};
 20static int min_ewindow[] = {1},		max_ewindow[] = {63};
 21static int min_t1[] = {1},		max_t1[] = {30000};
 22static int min_t2[] = {1},		max_t2[] = {20000};
 23static int min_t3[1],			max_t3[] = {3600000};
 24static int min_idle[1],			max_idle[] = {65535000};
 25static int min_n2[] = {1},		max_n2[] = {31};
 26static int min_paclen[] = {1},		max_paclen[] = {512};
 27static int min_proto[1],		max_proto[] = { AX25_PROTO_MAX };
 28#ifdef CONFIG_AX25_DAMA_SLAVE
 29static int min_ds_timeout[1],		max_ds_timeout[] = {65535000};
 30#endif
 31
 32static const struct ctl_table ax25_param_table[] = {
 33	{
 34		.procname	= "ip_default_mode",
 35		.maxlen		= sizeof(int),
 36		.mode		= 0644,
 37		.proc_handler	= proc_dointvec_minmax,
 38		.extra1		= &min_ipdefmode,
 39		.extra2		= &max_ipdefmode
 40	},
 41	{
 42		.procname	= "ax25_default_mode",
 43		.maxlen		= sizeof(int),
 44		.mode		= 0644,
 45		.proc_handler	= proc_dointvec_minmax,
 46		.extra1		= &min_axdefmode,
 47		.extra2		= &max_axdefmode
 48	},
 49	{
 50		.procname	= "backoff_type",
 51		.maxlen		= sizeof(int),
 52		.mode		= 0644,
 53		.proc_handler	= proc_dointvec_minmax,
 54		.extra1		= &min_backoff,
 55		.extra2		= &max_backoff
 56	},
 57	{
 58		.procname	= "connect_mode",
 59		.maxlen		= sizeof(int),
 60		.mode		= 0644,
 61		.proc_handler	= proc_dointvec_minmax,
 62		.extra1		= &min_conmode,
 63		.extra2		= &max_conmode
 64	},
 65	{
 66		.procname	= "standard_window_size",
 67		.maxlen		= sizeof(int),
 68		.mode		= 0644,
 69		.proc_handler	= proc_dointvec_minmax,
 70		.extra1		= &min_window,
 71		.extra2		= &max_window
 72	},
 73	{
 74		.procname	= "extended_window_size",
 75		.maxlen		= sizeof(int),
 76		.mode		= 0644,
 77		.proc_handler	= proc_dointvec_minmax,
 78		.extra1		= &min_ewindow,
 79		.extra2		= &max_ewindow
 80	},
 81	{
 82		.procname	= "t1_timeout",
 83		.maxlen		= sizeof(int),
 84		.mode		= 0644,
 85		.proc_handler	= proc_dointvec_minmax,
 86		.extra1		= &min_t1,
 87		.extra2		= &max_t1
 88	},
 89	{
 90		.procname	= "t2_timeout",
 91		.maxlen		= sizeof(int),
 92		.mode		= 0644,
 93		.proc_handler	= proc_dointvec_minmax,
 94		.extra1		= &min_t2,
 95		.extra2		= &max_t2
 96	},
 97	{
 98		.procname	= "t3_timeout",
 99		.maxlen		= sizeof(int),
100		.mode		= 0644,
101		.proc_handler	= proc_dointvec_minmax,
102		.extra1		= &min_t3,
103		.extra2		= &max_t3
104	},
105	{
106		.procname	= "idle_timeout",
107		.maxlen		= sizeof(int),
108		.mode		= 0644,
109		.proc_handler	= proc_dointvec_minmax,
110		.extra1		= &min_idle,
111		.extra2		= &max_idle
112	},
113	{
114		.procname	= "maximum_retry_count",
115		.maxlen		= sizeof(int),
116		.mode		= 0644,
117		.proc_handler	= proc_dointvec_minmax,
118		.extra1		= &min_n2,
119		.extra2		= &max_n2
120	},
121	{
122		.procname	= "maximum_packet_length",
123		.maxlen		= sizeof(int),
124		.mode		= 0644,
125		.proc_handler	= proc_dointvec_minmax,
126		.extra1		= &min_paclen,
127		.extra2		= &max_paclen
128	},
129	{
130		.procname	= "protocol",
131		.maxlen		= sizeof(int),
132		.mode		= 0644,
133		.proc_handler	= proc_dointvec_minmax,
134		.extra1		= &min_proto,
135		.extra2		= &max_proto
136	},
137#ifdef CONFIG_AX25_DAMA_SLAVE
138	{
139		.procname	= "dama_slave_timeout",
140		.maxlen		= sizeof(int),
141		.mode		= 0644,
142		.proc_handler	= proc_dointvec_minmax,
143		.extra1		= &min_ds_timeout,
144		.extra2		= &max_ds_timeout
145	},
146#endif
147
148	{ }	/* that's all, folks! */
149};
150
151int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
152{
153	char path[sizeof("net/ax25/") + IFNAMSIZ];
154	int k;
155	struct ctl_table *table;
156
157	table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
158	if (!table)
159		return -ENOMEM;
160
161	for (k = 0; k < AX25_MAX_VALUES; k++)
162		table[k].data = &ax25_dev->values[k];
163
164	snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name);
165	ax25_dev->sysheader = register_net_sysctl(&init_net, path, table);
166	if (!ax25_dev->sysheader) {
167		kfree(table);
168		return -ENOMEM;
169	}
170	return 0;
171}
172
173void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
174{
175	struct ctl_table_header *header = ax25_dev->sysheader;
176	struct ctl_table *table;
177
178	if (header) {
179		ax25_dev->sysheader = NULL;
180		table = header->ctl_table_arg;
181		unregister_net_sysctl_table(header);
182		kfree(table);
183	}
184}