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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*********************************************************************
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +09002 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Filename: irsysctl.c
4 * Version: 1.0
5 * Description: Sysctl interface for IrDA
6 * Status: Experimental.
7 * Author: Dag Brattli <dagb@cs.uit.no>
8 * Created at: Sun May 24 22:12:06 1998
9 * Modified at: Fri Jun 4 02:50:15 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +090011 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 * Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +090014 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 * the License, or (at your option) any later version.
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +090019 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 * Neither Dag Brattli nor University of Tromsø admit liability nor
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +090021 * provide warranty for any of this software. This material is
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 * provided "AS-IS" and at no charge.
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +090023 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 ********************************************************************/
25
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/mm.h>
27#include <linux/ctype.h>
28#include <linux/sysctl.h>
29#include <linux/init.h>
30
31#include <net/irda/irda.h> /* irda_debug */
32#include <net/irda/irias_object.h>
33
34#define NET_IRDA 412 /* Random number */
35enum { DISCOVERY=1, DEVNAME, DEBUG, FAST_POLL, DISCOVERY_SLOTS,
36 DISCOVERY_TIMEOUT, SLOT_TIMEOUT, MAX_BAUD_RATE, MIN_TX_TURN_TIME,
37 MAX_TX_DATA_SIZE, MAX_TX_WINDOW, MAX_NOREPLY_TIME, WARN_NOREPLY_TIME,
38 LAP_KEEPALIVE_TIME };
39
40extern int sysctl_discovery;
41extern int sysctl_discovery_slots;
42extern int sysctl_discovery_timeout;
43extern int sysctl_slot_timeout;
44extern int sysctl_fast_poll_increase;
45extern char sysctl_devname[];
46extern int sysctl_max_baud_rate;
47extern int sysctl_min_tx_turn_time;
48extern int sysctl_max_tx_data_size;
49extern int sysctl_max_tx_window;
50extern int sysctl_max_noreply_time;
51extern int sysctl_warn_noreply_time;
52extern int sysctl_lap_keepalive_time;
53
54/* this is needed for the proc_dointvec_minmax - Jean II */
55static int max_discovery_slots = 16; /* ??? */
56static int min_discovery_slots = 1;
57/* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices
58 * seems to require it. (from Dag's comment) */
59static int max_slot_timeout = 160;
60static int min_slot_timeout = 20;
61static int max_max_baud_rate = 16000000; /* See qos.c - IrLAP spec */
62static int min_max_baud_rate = 2400;
63static int max_min_tx_turn_time = 10000; /* See qos.c - IrLAP spec */
64static int min_min_tx_turn_time;
65static int max_max_tx_data_size = 2048; /* See qos.c - IrLAP spec */
66static int min_max_tx_data_size = 64;
67static int max_max_tx_window = 7; /* See qos.c - IrLAP spec */
68static int min_max_tx_window = 1;
69static int max_max_noreply_time = 40; /* See qos.c - IrLAP spec */
70static int min_max_noreply_time = 3;
71static int max_warn_noreply_time = 3; /* 3s == standard */
72static int min_warn_noreply_time = 1; /* 1s == min WD_TIMER */
73static int max_lap_keepalive_time = 10000; /* 10s */
74static int min_lap_keepalive_time = 100; /* 100us */
75/* For other sysctl, I've no idea of the range. Maybe Dag could help
76 * us on that - Jean II */
77
78static int do_devname(ctl_table *table, int write, struct file *filp,
79 void __user *buffer, size_t *lenp, loff_t *ppos)
80{
81 int ret;
82
83 ret = proc_dostring(table, write, filp, buffer, lenp, ppos);
84 if (ret == 0 && write) {
85 struct ias_value *val;
86
87 val = irias_new_string_value(sysctl_devname);
88 if (val)
89 irias_object_change_attribute("Device", "DeviceName", val);
90 }
91 return ret;
92}
93
94/* One file */
95static ctl_table irda_table[] = {
96 {
97 .ctl_name = DISCOVERY,
98 .procname = "discovery",
99 .data = &sysctl_discovery,
100 .maxlen = sizeof(int),
101 .mode = 0644,
102 .proc_handler = &proc_dointvec
103 },
104 {
105 .ctl_name = DEVNAME,
106 .procname = "devname",
107 .data = sysctl_devname,
108 .maxlen = 65,
109 .mode = 0644,
110 .proc_handler = &do_devname,
111 .strategy = &sysctl_string
112 },
113#ifdef CONFIG_IRDA_DEBUG
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +0900114 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 .ctl_name = DEBUG,
116 .procname = "debug",
117 .data = &irda_debug,
118 .maxlen = sizeof(int),
119 .mode = 0644,
120 .proc_handler = &proc_dointvec
121 },
122#endif
123#ifdef CONFIG_IRDA_FAST_RR
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +0900124 {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 .ctl_name = FAST_POLL,
126 .procname = "fast_poll_increase",
127 .data = &sysctl_fast_poll_increase,
128 .maxlen = sizeof(int),
129 .mode = 0644,
130 .proc_handler = &proc_dointvec
131 },
132#endif
133 {
134 .ctl_name = DISCOVERY_SLOTS,
135 .procname = "discovery_slots",
136 .data = &sysctl_discovery_slots,
137 .maxlen = sizeof(int),
138 .mode = 0644,
139 .proc_handler = &proc_dointvec_minmax,
140 .strategy = &sysctl_intvec,
141 .extra1 = &min_discovery_slots,
142 .extra2 = &max_discovery_slots
143 },
144 {
145 .ctl_name = DISCOVERY_TIMEOUT,
146 .procname = "discovery_timeout",
147 .data = &sysctl_discovery_timeout,
148 .maxlen = sizeof(int),
149 .mode = 0644,
150 .proc_handler = &proc_dointvec
151 },
152 {
153 .ctl_name = SLOT_TIMEOUT,
154 .procname = "slot_timeout",
155 .data = &sysctl_slot_timeout,
156 .maxlen = sizeof(int),
157 .mode = 0644,
158 .proc_handler = &proc_dointvec_minmax,
159 .strategy = &sysctl_intvec,
160 .extra1 = &min_slot_timeout,
161 .extra2 = &max_slot_timeout
162 },
163 {
164 .ctl_name = MAX_BAUD_RATE,
165 .procname = "max_baud_rate",
166 .data = &sysctl_max_baud_rate,
167 .maxlen = sizeof(int),
168 .mode = 0644,
169 .proc_handler = &proc_dointvec_minmax,
170 .strategy = &sysctl_intvec,
171 .extra1 = &min_max_baud_rate,
172 .extra2 = &max_max_baud_rate
173 },
174 {
175 .ctl_name = MIN_TX_TURN_TIME,
176 .procname = "min_tx_turn_time",
177 .data = &sysctl_min_tx_turn_time,
178 .maxlen = sizeof(int),
179 .mode = 0644,
180 .proc_handler = &proc_dointvec_minmax,
181 .strategy = &sysctl_intvec,
182 .extra1 = &min_min_tx_turn_time,
183 .extra2 = &max_min_tx_turn_time
184 },
185 {
186 .ctl_name = MAX_TX_DATA_SIZE,
187 .procname = "max_tx_data_size",
188 .data = &sysctl_max_tx_data_size,
189 .maxlen = sizeof(int),
190 .mode = 0644,
191 .proc_handler = &proc_dointvec_minmax,
192 .strategy = &sysctl_intvec,
193 .extra1 = &min_max_tx_data_size,
194 .extra2 = &max_max_tx_data_size
195 },
196 {
197 .ctl_name = MAX_TX_WINDOW,
198 .procname = "max_tx_window",
199 .data = &sysctl_max_tx_window,
200 .maxlen = sizeof(int),
201 .mode = 0644,
202 .proc_handler = &proc_dointvec_minmax,
203 .strategy = &sysctl_intvec,
204 .extra1 = &min_max_tx_window,
205 .extra2 = &max_max_tx_window
206 },
207 {
208 .ctl_name = MAX_NOREPLY_TIME,
209 .procname = "max_noreply_time",
210 .data = &sysctl_max_noreply_time,
211 .maxlen = sizeof(int),
212 .mode = 0644,
213 .proc_handler = &proc_dointvec_minmax,
214 .strategy = &sysctl_intvec,
215 .extra1 = &min_max_noreply_time,
216 .extra2 = &max_max_noreply_time
217 },
218 {
219 .ctl_name = WARN_NOREPLY_TIME,
220 .procname = "warn_noreply_time",
221 .data = &sysctl_warn_noreply_time,
222 .maxlen = sizeof(int),
223 .mode = 0644,
224 .proc_handler = &proc_dointvec_minmax,
225 .strategy = &sysctl_intvec,
226 .extra1 = &min_warn_noreply_time,
227 .extra2 = &max_warn_noreply_time
228 },
229 {
230 .ctl_name = LAP_KEEPALIVE_TIME,
231 .procname = "lap_keepalive_time",
232 .data = &sysctl_lap_keepalive_time,
233 .maxlen = sizeof(int),
234 .mode = 0644,
235 .proc_handler = &proc_dointvec_minmax,
236 .strategy = &sysctl_intvec,
237 .extra1 = &min_lap_keepalive_time,
238 .extra2 = &max_lap_keepalive_time
239 },
240 { .ctl_name = 0 }
241};
242
243/* One directory */
244static ctl_table irda_net_table[] = {
245 {
246 .ctl_name = NET_IRDA,
247 .procname = "irda",
248 .maxlen = 0,
249 .mode = 0555,
250 .child = irda_table
251 },
252 { .ctl_name = 0 }
253};
254
255/* The parent directory */
256static ctl_table irda_root_table[] = {
257 {
258 .ctl_name = CTL_NET,
259 .procname = "net",
260 .maxlen = 0,
261 .mode = 0555,
262 .child = irda_net_table
263 },
264 { .ctl_name = 0 }
265};
266
267static struct ctl_table_header *irda_table_header;
268
269/*
270 * Function irda_sysctl_register (void)
271 *
272 * Register our sysctl interface
273 *
274 */
275int __init irda_sysctl_register(void)
276{
Eric W. Biederman0b4d4142007-02-14 00:34:09 -0800277 irda_table_header = register_sysctl_table(irda_root_table);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 if (!irda_table_header)
279 return -ENOMEM;
280
281 return 0;
282}
283
284/*
285 * Function irda_sysctl_unregister (void)
286 *
287 * Unregister our sysctl interface
288 *
289 */
YOSHIFUJI Hideaki6819bc22007-02-09 23:24:53 +0900290void __exit irda_sysctl_unregister(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291{
292 unregister_sysctl_table(irda_table_header);
293}
294
295
296