1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Copyright (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
* Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi)
* Copyright (C) Darryl Miles G7LED (dlm@g7led.demon.co.uk)
* Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
* Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
* Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
*/
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <net/ax25.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <linux/uaccess.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
static void ax25_heartbeat_expiry(unsigned long);
static void ax25_t1timer_expiry(unsigned long);
static void ax25_t2timer_expiry(unsigned long);
static void ax25_t3timer_expiry(unsigned long);
static void ax25_idletimer_expiry(unsigned long);
void ax25_setup_timers(ax25_cb *ax25)
{
setup_timer(&ax25->timer, ax25_heartbeat_expiry, (unsigned long)ax25);
setup_timer(&ax25->t1timer, ax25_t1timer_expiry, (unsigned long)ax25);
setup_timer(&ax25->t2timer, ax25_t2timer_expiry, (unsigned long)ax25);
setup_timer(&ax25->t3timer, ax25_t3timer_expiry, (unsigned long)ax25);
setup_timer(&ax25->idletimer, ax25_idletimer_expiry,
(unsigned long)ax25);
}
void ax25_start_heartbeat(ax25_cb *ax25)
{
mod_timer(&ax25->timer, jiffies + 5 * HZ);
}
void ax25_start_t1timer(ax25_cb *ax25)
{
mod_timer(&ax25->t1timer, jiffies + ax25->t1);
}
void ax25_start_t2timer(ax25_cb *ax25)
{
mod_timer(&ax25->t2timer, jiffies + ax25->t2);
}
void ax25_start_t3timer(ax25_cb *ax25)
{
if (ax25->t3 > 0)
mod_timer(&ax25->t3timer, jiffies + ax25->t3);
else
del_timer(&ax25->t3timer);
}
void ax25_start_idletimer(ax25_cb *ax25)
{
if (ax25->idle > 0)
mod_timer(&ax25->idletimer, jiffies + ax25->idle);
else
del_timer(&ax25->idletimer);
}
void ax25_stop_heartbeat(ax25_cb *ax25)
{
del_timer(&ax25->timer);
}
void ax25_stop_t1timer(ax25_cb *ax25)
{
del_timer(&ax25->t1timer);
}
void ax25_stop_t2timer(ax25_cb *ax25)
{
del_timer(&ax25->t2timer);
}
void ax25_stop_t3timer(ax25_cb *ax25)
{
del_timer(&ax25->t3timer);
}
void ax25_stop_idletimer(ax25_cb *ax25)
{
del_timer(&ax25->idletimer);
}
int ax25_t1timer_running(ax25_cb *ax25)
{
return timer_pending(&ax25->t1timer);
}
unsigned long ax25_display_timer(struct timer_list *timer)
{
if (!timer_pending(timer))
return 0;
return timer->expires - jiffies;
}
EXPORT_SYMBOL(ax25_display_timer);
static void ax25_heartbeat_expiry(unsigned long param)
{
int proto = AX25_PROTO_STD_SIMPLEX;
ax25_cb *ax25 = (ax25_cb *)param;
if (ax25->ax25_dev)
proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
switch (proto) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_heartbeat_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_heartbeat_expiry(ax25);
else
ax25_std_heartbeat_expiry(ax25);
break;
#endif
}
}
static void ax25_t1timer_expiry(unsigned long param)
{
ax25_cb *ax25 = (ax25_cb *)param;
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t1timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (!ax25->ax25_dev->dama.slave)
ax25_std_t1timer_expiry(ax25);
break;
#endif
}
}
static void ax25_t2timer_expiry(unsigned long param)
{
ax25_cb *ax25 = (ax25_cb *)param;
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t2timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (!ax25->ax25_dev->dama.slave)
ax25_std_t2timer_expiry(ax25);
break;
#endif
}
}
static void ax25_t3timer_expiry(unsigned long param)
{
ax25_cb *ax25 = (ax25_cb *)param;
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_t3timer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_t3timer_expiry(ax25);
else
ax25_std_t3timer_expiry(ax25);
break;
#endif
}
}
static void ax25_idletimer_expiry(unsigned long param)
{
ax25_cb *ax25 = (ax25_cb *)param;
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
case AX25_PROTO_STD_DUPLEX:
ax25_std_idletimer_expiry(ax25);
break;
#ifdef CONFIG_AX25_DAMA_SLAVE
case AX25_PROTO_DAMA_SLAVE:
if (ax25->ax25_dev->dama.slave)
ax25_ds_idletimer_expiry(ax25);
else
ax25_std_idletimer_expiry(ax25);
break;
#endif
}
}
|
