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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) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
8 * Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
9 * Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi)
10 * Copyright (C) Darryl Miles G7LED (dlm@g7led.demon.co.uk)
11 * Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
12 * Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
13 * Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
14 */
15#include <linux/errno.h>
16#include <linux/types.h>
17#include <linux/socket.h>
18#include <linux/in.h>
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/jiffies.h>
22#include <linux/timer.h>
23#include <linux/string.h>
24#include <linux/sockios.h>
25#include <linux/net.h>
26#include <net/ax25.h>
27#include <linux/inet.h>
28#include <linux/netdevice.h>
29#include <linux/skbuff.h>
30#include <net/sock.h>
31#include <linux/uaccess.h>
32#include <linux/fcntl.h>
33#include <linux/mm.h>
34#include <linux/interrupt.h>
35
36static void ax25_heartbeat_expiry(struct timer_list *);
37static void ax25_t1timer_expiry(struct timer_list *);
38static void ax25_t2timer_expiry(struct timer_list *);
39static void ax25_t3timer_expiry(struct timer_list *);
40static void ax25_idletimer_expiry(struct timer_list *);
41
42void ax25_setup_timers(ax25_cb *ax25)
43{
44 timer_setup(&ax25->timer, ax25_heartbeat_expiry, 0);
45 timer_setup(&ax25->t1timer, ax25_t1timer_expiry, 0);
46 timer_setup(&ax25->t2timer, ax25_t2timer_expiry, 0);
47 timer_setup(&ax25->t3timer, ax25_t3timer_expiry, 0);
48 timer_setup(&ax25->idletimer, ax25_idletimer_expiry, 0);
49}
50
51void ax25_start_heartbeat(ax25_cb *ax25)
52{
53 mod_timer(&ax25->timer, jiffies + 5 * HZ);
54}
55
56void ax25_start_t1timer(ax25_cb *ax25)
57{
58 mod_timer(&ax25->t1timer, jiffies + ax25->t1);
59}
60
61void ax25_start_t2timer(ax25_cb *ax25)
62{
63 mod_timer(&ax25->t2timer, jiffies + ax25->t2);
64}
65
66void ax25_start_t3timer(ax25_cb *ax25)
67{
68 if (ax25->t3 > 0)
69 mod_timer(&ax25->t3timer, jiffies + ax25->t3);
70 else
71 del_timer(&ax25->t3timer);
72}
73
74void ax25_start_idletimer(ax25_cb *ax25)
75{
76 if (ax25->idle > 0)
77 mod_timer(&ax25->idletimer, jiffies + ax25->idle);
78 else
79 del_timer(&ax25->idletimer);
80}
81
82void ax25_stop_heartbeat(ax25_cb *ax25)
83{
84 del_timer(&ax25->timer);
85}
86
87void ax25_stop_t1timer(ax25_cb *ax25)
88{
89 del_timer(&ax25->t1timer);
90}
91
92void ax25_stop_t2timer(ax25_cb *ax25)
93{
94 del_timer(&ax25->t2timer);
95}
96
97void ax25_stop_t3timer(ax25_cb *ax25)
98{
99 del_timer(&ax25->t3timer);
100}
101
102void ax25_stop_idletimer(ax25_cb *ax25)
103{
104 del_timer(&ax25->idletimer);
105}
106
107int ax25_t1timer_running(ax25_cb *ax25)
108{
109 return timer_pending(&ax25->t1timer);
110}
111
112unsigned long ax25_display_timer(struct timer_list *timer)
113{
114 if (!timer_pending(timer))
115 return 0;
116
117 return timer->expires - jiffies;
118}
119
120EXPORT_SYMBOL(ax25_display_timer);
121
122static void ax25_heartbeat_expiry(struct timer_list *t)
123{
124 int proto = AX25_PROTO_STD_SIMPLEX;
125 ax25_cb *ax25 = from_timer(ax25, t, timer);
126
127 if (ax25->ax25_dev)
128 proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
129
130 switch (proto) {
131 case AX25_PROTO_STD_SIMPLEX:
132 case AX25_PROTO_STD_DUPLEX:
133 ax25_std_heartbeat_expiry(ax25);
134 break;
135
136#ifdef CONFIG_AX25_DAMA_SLAVE
137 case AX25_PROTO_DAMA_SLAVE:
138 if (ax25->ax25_dev->dama.slave)
139 ax25_ds_heartbeat_expiry(ax25);
140 else
141 ax25_std_heartbeat_expiry(ax25);
142 break;
143#endif
144 }
145}
146
147static void ax25_t1timer_expiry(struct timer_list *t)
148{
149 ax25_cb *ax25 = from_timer(ax25, t, t1timer);
150
151 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
152 case AX25_PROTO_STD_SIMPLEX:
153 case AX25_PROTO_STD_DUPLEX:
154 ax25_std_t1timer_expiry(ax25);
155 break;
156
157#ifdef CONFIG_AX25_DAMA_SLAVE
158 case AX25_PROTO_DAMA_SLAVE:
159 if (!ax25->ax25_dev->dama.slave)
160 ax25_std_t1timer_expiry(ax25);
161 break;
162#endif
163 }
164}
165
166static void ax25_t2timer_expiry(struct timer_list *t)
167{
168 ax25_cb *ax25 = from_timer(ax25, t, t2timer);
169
170 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
171 case AX25_PROTO_STD_SIMPLEX:
172 case AX25_PROTO_STD_DUPLEX:
173 ax25_std_t2timer_expiry(ax25);
174 break;
175
176#ifdef CONFIG_AX25_DAMA_SLAVE
177 case AX25_PROTO_DAMA_SLAVE:
178 if (!ax25->ax25_dev->dama.slave)
179 ax25_std_t2timer_expiry(ax25);
180 break;
181#endif
182 }
183}
184
185static void ax25_t3timer_expiry(struct timer_list *t)
186{
187 ax25_cb *ax25 = from_timer(ax25, t, t3timer);
188
189 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
190 case AX25_PROTO_STD_SIMPLEX:
191 case AX25_PROTO_STD_DUPLEX:
192 ax25_std_t3timer_expiry(ax25);
193 break;
194
195#ifdef CONFIG_AX25_DAMA_SLAVE
196 case AX25_PROTO_DAMA_SLAVE:
197 if (ax25->ax25_dev->dama.slave)
198 ax25_ds_t3timer_expiry(ax25);
199 else
200 ax25_std_t3timer_expiry(ax25);
201 break;
202#endif
203 }
204}
205
206static void ax25_idletimer_expiry(struct timer_list *t)
207{
208 ax25_cb *ax25 = from_timer(ax25, t, idletimer);
209
210 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
211 case AX25_PROTO_STD_SIMPLEX:
212 case AX25_PROTO_STD_DUPLEX:
213 ax25_std_idletimer_expiry(ax25);
214 break;
215
216#ifdef CONFIG_AX25_DAMA_SLAVE
217 case AX25_PROTO_DAMA_SLAVE:
218 if (ax25->ax25_dev->dama.slave)
219 ax25_ds_idletimer_expiry(ax25);
220 else
221 ax25_std_idletimer_expiry(ax25);
222 break;
223#endif
224 }
225}
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) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
8 * Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
9 * Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi)
10 * Copyright (C) Darryl Miles G7LED (dlm@g7led.demon.co.uk)
11 * Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
12 * Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
13 * Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
14 */
15#include <linux/errno.h>
16#include <linux/types.h>
17#include <linux/socket.h>
18#include <linux/in.h>
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/jiffies.h>
22#include <linux/timer.h>
23#include <linux/string.h>
24#include <linux/sockios.h>
25#include <linux/net.h>
26#include <net/ax25.h>
27#include <linux/inet.h>
28#include <linux/netdevice.h>
29#include <linux/skbuff.h>
30#include <net/sock.h>
31#include <asm/uaccess.h>
32#include <linux/fcntl.h>
33#include <linux/mm.h>
34#include <linux/interrupt.h>
35
36static void ax25_heartbeat_expiry(unsigned long);
37static void ax25_t1timer_expiry(unsigned long);
38static void ax25_t2timer_expiry(unsigned long);
39static void ax25_t3timer_expiry(unsigned long);
40static void ax25_idletimer_expiry(unsigned long);
41
42void ax25_setup_timers(ax25_cb *ax25)
43{
44 setup_timer(&ax25->timer, ax25_heartbeat_expiry, (unsigned long)ax25);
45 setup_timer(&ax25->t1timer, ax25_t1timer_expiry, (unsigned long)ax25);
46 setup_timer(&ax25->t2timer, ax25_t2timer_expiry, (unsigned long)ax25);
47 setup_timer(&ax25->t3timer, ax25_t3timer_expiry, (unsigned long)ax25);
48 setup_timer(&ax25->idletimer, ax25_idletimer_expiry,
49 (unsigned long)ax25);
50}
51
52void ax25_start_heartbeat(ax25_cb *ax25)
53{
54 mod_timer(&ax25->timer, jiffies + 5 * HZ);
55}
56
57void ax25_start_t1timer(ax25_cb *ax25)
58{
59 mod_timer(&ax25->t1timer, jiffies + ax25->t1);
60}
61
62void ax25_start_t2timer(ax25_cb *ax25)
63{
64 mod_timer(&ax25->t2timer, jiffies + ax25->t2);
65}
66
67void ax25_start_t3timer(ax25_cb *ax25)
68{
69 if (ax25->t3 > 0)
70 mod_timer(&ax25->t3timer, jiffies + ax25->t3);
71 else
72 del_timer(&ax25->t3timer);
73}
74
75void ax25_start_idletimer(ax25_cb *ax25)
76{
77 if (ax25->idle > 0)
78 mod_timer(&ax25->idletimer, jiffies + ax25->idle);
79 else
80 del_timer(&ax25->idletimer);
81}
82
83void ax25_stop_heartbeat(ax25_cb *ax25)
84{
85 del_timer(&ax25->timer);
86}
87
88void ax25_stop_t1timer(ax25_cb *ax25)
89{
90 del_timer(&ax25->t1timer);
91}
92
93void ax25_stop_t2timer(ax25_cb *ax25)
94{
95 del_timer(&ax25->t2timer);
96}
97
98void ax25_stop_t3timer(ax25_cb *ax25)
99{
100 del_timer(&ax25->t3timer);
101}
102
103void ax25_stop_idletimer(ax25_cb *ax25)
104{
105 del_timer(&ax25->idletimer);
106}
107
108int ax25_t1timer_running(ax25_cb *ax25)
109{
110 return timer_pending(&ax25->t1timer);
111}
112
113unsigned long ax25_display_timer(struct timer_list *timer)
114{
115 if (!timer_pending(timer))
116 return 0;
117
118 return timer->expires - jiffies;
119}
120
121EXPORT_SYMBOL(ax25_display_timer);
122
123static void ax25_heartbeat_expiry(unsigned long param)
124{
125 int proto = AX25_PROTO_STD_SIMPLEX;
126 ax25_cb *ax25 = (ax25_cb *)param;
127
128 if (ax25->ax25_dev)
129 proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
130
131 switch (proto) {
132 case AX25_PROTO_STD_SIMPLEX:
133 case AX25_PROTO_STD_DUPLEX:
134 ax25_std_heartbeat_expiry(ax25);
135 break;
136
137#ifdef CONFIG_AX25_DAMA_SLAVE
138 case AX25_PROTO_DAMA_SLAVE:
139 if (ax25->ax25_dev->dama.slave)
140 ax25_ds_heartbeat_expiry(ax25);
141 else
142 ax25_std_heartbeat_expiry(ax25);
143 break;
144#endif
145 }
146}
147
148static void ax25_t1timer_expiry(unsigned long param)
149{
150 ax25_cb *ax25 = (ax25_cb *)param;
151
152 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
153 case AX25_PROTO_STD_SIMPLEX:
154 case AX25_PROTO_STD_DUPLEX:
155 ax25_std_t1timer_expiry(ax25);
156 break;
157
158#ifdef CONFIG_AX25_DAMA_SLAVE
159 case AX25_PROTO_DAMA_SLAVE:
160 if (!ax25->ax25_dev->dama.slave)
161 ax25_std_t1timer_expiry(ax25);
162 break;
163#endif
164 }
165}
166
167static void ax25_t2timer_expiry(unsigned long param)
168{
169 ax25_cb *ax25 = (ax25_cb *)param;
170
171 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
172 case AX25_PROTO_STD_SIMPLEX:
173 case AX25_PROTO_STD_DUPLEX:
174 ax25_std_t2timer_expiry(ax25);
175 break;
176
177#ifdef CONFIG_AX25_DAMA_SLAVE
178 case AX25_PROTO_DAMA_SLAVE:
179 if (!ax25->ax25_dev->dama.slave)
180 ax25_std_t2timer_expiry(ax25);
181 break;
182#endif
183 }
184}
185
186static void ax25_t3timer_expiry(unsigned long param)
187{
188 ax25_cb *ax25 = (ax25_cb *)param;
189
190 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
191 case AX25_PROTO_STD_SIMPLEX:
192 case AX25_PROTO_STD_DUPLEX:
193 ax25_std_t3timer_expiry(ax25);
194 break;
195
196#ifdef CONFIG_AX25_DAMA_SLAVE
197 case AX25_PROTO_DAMA_SLAVE:
198 if (ax25->ax25_dev->dama.slave)
199 ax25_ds_t3timer_expiry(ax25);
200 else
201 ax25_std_t3timer_expiry(ax25);
202 break;
203#endif
204 }
205}
206
207static void ax25_idletimer_expiry(unsigned long param)
208{
209 ax25_cb *ax25 = (ax25_cb *)param;
210
211 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
212 case AX25_PROTO_STD_SIMPLEX:
213 case AX25_PROTO_STD_DUPLEX:
214 ax25_std_idletimer_expiry(ax25);
215 break;
216
217#ifdef CONFIG_AX25_DAMA_SLAVE
218 case AX25_PROTO_DAMA_SLAVE:
219 if (ax25->ax25_dev->dama.slave)
220 ax25_ds_idletimer_expiry(ax25);
221 else
222 ax25_std_idletimer_expiry(ax25);
223 break;
224#endif
225 }
226}