]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* $Id: isdn_divert.c,v 1.6.6.3 2001/09/23 22:24:36 kai Exp $ |
2 | * | |
3 | * DSS1 main diversion supplementary handling for i4l. | |
4 | * | |
5 | * Copyright 1999 by Werner Cornelius (werner@isdn4linux.de) | |
475be4d8 | 6 | * |
1da177e4 LT |
7 | * This software may be used and distributed according to the terms |
8 | * of the GNU General Public License, incorporated herein by reference. | |
9 | * | |
10 | */ | |
11 | ||
1da177e4 | 12 | #include <linux/proc_fs.h> |
5a0e3ad6 | 13 | #include <linux/slab.h> |
d7fe0f24 AV |
14 | #include <linux/timer.h> |
15 | #include <linux/jiffies.h> | |
1da177e4 LT |
16 | |
17 | #include "isdn_divert.h" | |
18 | ||
19 | /**********************************/ | |
20 | /* structure keeping calling info */ | |
21 | /**********************************/ | |
03f18285 TS |
22 | struct call_struc { |
23 | isdn_ctrl ics; /* delivered setup + driver parameters */ | |
475be4d8 JP |
24 | ulong divert_id; /* Id delivered to user */ |
25 | unsigned char akt_state; /* actual state */ | |
26 | char deflect_dest[35]; /* deflection destination */ | |
27 | struct timer_list timer; /* timer control structure */ | |
28 | char info[90]; /* device info output */ | |
29 | struct call_struc *next; /* pointer to next entry */ | |
30 | struct call_struc *prev; | |
31 | }; | |
1da177e4 LT |
32 | |
33 | ||
34 | /********************************************/ | |
35 | /* structure keeping deflection table entry */ | |
36 | /********************************************/ | |
03f18285 TS |
37 | struct deflect_struc { |
38 | struct deflect_struc *next, *prev; | |
475be4d8 JP |
39 | divert_rule rule; /* used rule */ |
40 | }; | |
1da177e4 LT |
41 | |
42 | ||
43 | /*****************************************/ | |
44 | /* variables for main diversion services */ | |
45 | /*****************************************/ | |
46 | /* diversion/deflection processes */ | |
47 | static struct call_struc *divert_head = NULL; /* head of remembered entrys */ | |
475be4d8 | 48 | static ulong next_id = 1; /* next info id */ |
1da177e4 | 49 | static struct deflect_struc *table_head = NULL; |
475be4d8 JP |
50 | static struct deflect_struc *table_tail = NULL; |
51 | static unsigned char extern_wait_max = 4; /* maximum wait in s for external process */ | |
1da177e4 LT |
52 | |
53 | DEFINE_SPINLOCK(divert_lock); | |
54 | ||
55 | /***************************/ | |
56 | /* timer callback function */ | |
57 | /***************************/ | |
58 | static void deflect_timer_expire(ulong arg) | |
59 | { | |
475be4d8 JP |
60 | unsigned long flags; |
61 | struct call_struc *cs = (struct call_struc *) arg; | |
62 | ||
63 | spin_lock_irqsave(&divert_lock, flags); | |
64 | del_timer(&cs->timer); /* delete active timer */ | |
65 | spin_unlock_irqrestore(&divert_lock, flags); | |
66 | ||
03f18285 TS |
67 | switch (cs->akt_state) { |
68 | case DEFLECT_PROCEED: | |
69 | cs->ics.command = ISDN_CMD_HANGUP; /* cancel action */ | |
70 | divert_if.ll_cmd(&cs->ics); | |
71 | spin_lock_irqsave(&divert_lock, flags); | |
72 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
73 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
74 | add_timer(&cs->timer); | |
75 | spin_unlock_irqrestore(&divert_lock, flags); | |
76 | break; | |
475be4d8 JP |
77 | |
78 | case DEFLECT_ALERT: | |
79 | cs->ics.command = ISDN_CMD_REDIR; /* protocol */ | |
80 | strlcpy(cs->ics.parm.setup.phone, cs->deflect_dest, sizeof(cs->ics.parm.setup.phone)); | |
81 | strcpy(cs->ics.parm.setup.eazmsn, "Testtext delayed"); | |
82 | divert_if.ll_cmd(&cs->ics); | |
83 | spin_lock_irqsave(&divert_lock, flags); | |
84 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
85 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
86 | add_timer(&cs->timer); | |
87 | spin_unlock_irqrestore(&divert_lock, flags); | |
88 | break; | |
89 | ||
90 | case DEFLECT_AUTODEL: | |
91 | default: | |
92 | spin_lock_irqsave(&divert_lock, flags); | |
93 | if (cs->prev) | |
94 | cs->prev->next = cs->next; /* forward link */ | |
95 | else | |
96 | divert_head = cs->next; | |
97 | if (cs->next) | |
98 | cs->next->prev = cs->prev; /* back link */ | |
99 | spin_unlock_irqrestore(&divert_lock, flags); | |
100 | kfree(cs); | |
101 | return; | |
102 | ||
103 | } /* switch */ | |
1da177e4 LT |
104 | } /* deflect_timer_func */ |
105 | ||
106 | ||
107 | /*****************************************/ | |
108 | /* handle call forwarding de/activations */ | |
109 | /* 0 = deact, 1 = act, 2 = interrogate */ | |
110 | /*****************************************/ | |
475be4d8 JP |
111 | int cf_command(int drvid, int mode, |
112 | u_char proc, char *msn, | |
113 | u_char service, char *fwd_nr, ulong *procid) | |
03f18285 TS |
114 | { |
115 | unsigned long flags; | |
475be4d8 JP |
116 | int retval, msnlen; |
117 | int fwd_len; | |
118 | char *p, *ielenp, tmp[60]; | |
119 | struct call_struc *cs; | |
120 | ||
121 | if (strchr(msn, '.')) return (-EINVAL); /* subaddress not allowed in msn */ | |
122 | if ((proc & 0x7F) > 2) return (-EINVAL); | |
123 | proc &= 3; | |
124 | p = tmp; | |
125 | *p++ = 0x30; /* enumeration */ | |
126 | ielenp = p++; /* remember total length position */ | |
127 | *p++ = 0xa; /* proc tag */ | |
128 | *p++ = 1; /* length */ | |
129 | *p++ = proc & 0x7F; /* procedure to de/activate/interrogate */ | |
130 | *p++ = 0xa; /* service tag */ | |
131 | *p++ = 1; /* length */ | |
132 | *p++ = service; /* service to handle */ | |
133 | ||
03f18285 TS |
134 | if (mode == 1) { |
135 | if (!*fwd_nr) return (-EINVAL); /* destination missing */ | |
475be4d8 JP |
136 | if (strchr(fwd_nr, '.')) return (-EINVAL); /* subaddress not allowed */ |
137 | fwd_len = strlen(fwd_nr); | |
138 | *p++ = 0x30; /* number enumeration */ | |
139 | *p++ = fwd_len + 2; /* complete forward to len */ | |
140 | *p++ = 0x80; /* fwd to nr */ | |
141 | *p++ = fwd_len; /* length of number */ | |
142 | strcpy(p, fwd_nr); /* copy number */ | |
143 | p += fwd_len; /* pointer beyond fwd */ | |
144 | } /* activate */ | |
145 | ||
146 | msnlen = strlen(msn); | |
147 | *p++ = 0x80; /* msn number */ | |
03f18285 TS |
148 | if (msnlen > 1) { |
149 | *p++ = msnlen; /* length */ | |
475be4d8 JP |
150 | strcpy(p, msn); |
151 | p += msnlen; | |
03f18285 TS |
152 | } else |
153 | *p++ = 0; | |
475be4d8 JP |
154 | |
155 | *ielenp = p - ielenp - 1; /* set total IE length */ | |
156 | ||
157 | /* allocate mem for information struct */ | |
158 | if (!(cs = kmalloc(sizeof(struct call_struc), GFP_ATOMIC))) | |
159 | return (-ENOMEM); /* no memory */ | |
160 | init_timer(&cs->timer); | |
161 | cs->info[0] = '\0'; | |
162 | cs->timer.function = deflect_timer_expire; | |
163 | cs->timer.data = (ulong) cs; /* pointer to own structure */ | |
164 | cs->ics.driver = drvid; | |
165 | cs->ics.command = ISDN_CMD_PROT_IO; /* protocol specific io */ | |
166 | cs->ics.arg = DSS1_CMD_INVOKE; /* invoke supplementary service */ | |
167 | cs->ics.parm.dss1_io.proc = (mode == 1) ? 7 : (mode == 2) ? 11 : 8; /* operation */ | |
168 | cs->ics.parm.dss1_io.timeout = 4000; /* from ETS 300 207-1 */ | |
169 | cs->ics.parm.dss1_io.datalen = p - tmp; /* total len */ | |
170 | cs->ics.parm.dss1_io.data = tmp; /* start of buffer */ | |
171 | ||
172 | spin_lock_irqsave(&divert_lock, flags); | |
173 | cs->ics.parm.dss1_io.ll_id = next_id++; /* id for callback */ | |
174 | spin_unlock_irqrestore(&divert_lock, flags); | |
175 | *procid = cs->ics.parm.dss1_io.ll_id; | |
176 | ||
177 | sprintf(cs->info, "%d 0x%lx %s%s 0 %s %02x %d%s%s\n", | |
178 | (!mode) ? DIVERT_DEACTIVATE : (mode == 1) ? DIVERT_ACTIVATE : DIVERT_REPORT, | |
179 | cs->ics.parm.dss1_io.ll_id, | |
180 | (mode != 2) ? "" : "0 ", | |
181 | divert_if.drv_to_name(cs->ics.driver), | |
182 | msn, | |
183 | service & 0xFF, | |
184 | proc, | |
185 | (mode != 1) ? "" : " 0 ", | |
186 | (mode != 1) ? "" : fwd_nr); | |
187 | ||
188 | retval = divert_if.ll_cmd(&cs->ics); /* execute command */ | |
189 | ||
03f18285 TS |
190 | if (!retval) { |
191 | cs->prev = NULL; | |
475be4d8 JP |
192 | spin_lock_irqsave(&divert_lock, flags); |
193 | cs->next = divert_head; | |
194 | divert_head = cs; | |
195 | spin_unlock_irqrestore(&divert_lock, flags); | |
03f18285 | 196 | } else |
475be4d8 JP |
197 | kfree(cs); |
198 | return (retval); | |
1da177e4 LT |
199 | } /* cf_command */ |
200 | ||
201 | ||
202 | /****************************************/ | |
203 | /* handle a external deflection command */ | |
204 | /****************************************/ | |
205 | int deflect_extern_action(u_char cmd, ulong callid, char *to_nr) | |
03f18285 TS |
206 | { |
207 | struct call_struc *cs; | |
475be4d8 JP |
208 | isdn_ctrl ic; |
209 | unsigned long flags; | |
210 | int i; | |
211 | ||
212 | if ((cmd & 0x7F) > 2) return (-EINVAL); /* invalid command */ | |
213 | cs = divert_head; /* start of parameter list */ | |
03f18285 TS |
214 | while (cs) { |
215 | if (cs->divert_id == callid) break; /* found */ | |
475be4d8 JP |
216 | cs = cs->next; |
217 | } /* search entry */ | |
218 | if (!cs) return (-EINVAL); /* invalid callid */ | |
219 | ||
220 | ic.driver = cs->ics.driver; | |
221 | ic.arg = cs->ics.arg; | |
222 | i = -EINVAL; | |
223 | if (cs->akt_state == DEFLECT_AUTODEL) return (i); /* no valid call */ | |
03f18285 TS |
224 | switch (cmd & 0x7F) { |
225 | case 0: /* hangup */ | |
226 | del_timer(&cs->timer); | |
227 | ic.command = ISDN_CMD_HANGUP; | |
228 | i = divert_if.ll_cmd(&ic); | |
229 | spin_lock_irqsave(&divert_lock, flags); | |
230 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
231 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
232 | add_timer(&cs->timer); | |
233 | spin_unlock_irqrestore(&divert_lock, flags); | |
234 | break; | |
475be4d8 JP |
235 | |
236 | case 1: /* alert */ | |
237 | if (cs->akt_state == DEFLECT_ALERT) return (0); | |
238 | cmd &= 0x7F; /* never wait */ | |
239 | del_timer(&cs->timer); | |
240 | ic.command = ISDN_CMD_ALERT; | |
03f18285 | 241 | if ((i = divert_if.ll_cmd(&ic))) { |
475be4d8 JP |
242 | spin_lock_irqsave(&divert_lock, flags); |
243 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
244 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
245 | add_timer(&cs->timer); | |
246 | spin_unlock_irqrestore(&divert_lock, flags); | |
03f18285 | 247 | } else |
475be4d8 JP |
248 | cs->akt_state = DEFLECT_ALERT; |
249 | break; | |
250 | ||
251 | case 2: /* redir */ | |
252 | del_timer(&cs->timer); | |
253 | strlcpy(cs->ics.parm.setup.phone, to_nr, sizeof(cs->ics.parm.setup.phone)); | |
254 | strcpy(cs->ics.parm.setup.eazmsn, "Testtext manual"); | |
255 | ic.command = ISDN_CMD_REDIR; | |
03f18285 | 256 | if ((i = divert_if.ll_cmd(&ic))) { |
475be4d8 JP |
257 | spin_lock_irqsave(&divert_lock, flags); |
258 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
259 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
260 | add_timer(&cs->timer); | |
261 | spin_unlock_irqrestore(&divert_lock, flags); | |
03f18285 | 262 | } else |
475be4d8 JP |
263 | cs->akt_state = DEFLECT_ALERT; |
264 | break; | |
265 | ||
266 | } /* switch */ | |
267 | return (i); | |
1da177e4 LT |
268 | } /* deflect_extern_action */ |
269 | ||
270 | /********************************/ | |
271 | /* insert a new rule before idx */ | |
272 | /********************************/ | |
273 | int insertrule(int idx, divert_rule *newrule) | |
03f18285 TS |
274 | { |
275 | struct deflect_struc *ds, *ds1 = NULL; | |
475be4d8 JP |
276 | unsigned long flags; |
277 | ||
03f18285 | 278 | if (!(ds = kmalloc(sizeof(struct deflect_struc), GFP_KERNEL))) |
475be4d8 JP |
279 | return (-ENOMEM); /* no memory */ |
280 | ||
281 | ds->rule = *newrule; /* set rule */ | |
282 | ||
283 | spin_lock_irqsave(&divert_lock, flags); | |
284 | ||
03f18285 TS |
285 | if (idx >= 0) { |
286 | ds1 = table_head; | |
475be4d8 JP |
287 | while ((ds1) && (idx > 0)) |
288 | { idx--; | |
289 | ds1 = ds1->next; | |
290 | } | |
291 | if (!ds1) idx = -1; | |
292 | } | |
293 | ||
03f18285 TS |
294 | if (idx < 0) { |
295 | ds->prev = table_tail; /* previous entry */ | |
475be4d8 JP |
296 | ds->next = NULL; /* end of chain */ |
297 | if (ds->prev) | |
298 | ds->prev->next = ds; /* last forward */ | |
299 | else | |
300 | table_head = ds; /* is first entry */ | |
301 | table_tail = ds; /* end of queue */ | |
03f18285 TS |
302 | } else { |
303 | ds->next = ds1; /* next entry */ | |
475be4d8 JP |
304 | ds->prev = ds1->prev; /* prev entry */ |
305 | ds1->prev = ds; /* backward chain old element */ | |
306 | if (!ds->prev) | |
307 | table_head = ds; /* first element */ | |
308 | } | |
309 | ||
310 | spin_unlock_irqrestore(&divert_lock, flags); | |
311 | return (0); | |
1da177e4 LT |
312 | } /* insertrule */ |
313 | ||
314 | /***********************************/ | |
315 | /* delete the rule at position idx */ | |
316 | /***********************************/ | |
317 | int deleterule(int idx) | |
03f18285 TS |
318 | { |
319 | struct deflect_struc *ds, *ds1; | |
475be4d8 JP |
320 | unsigned long flags; |
321 | ||
03f18285 TS |
322 | if (idx < 0) { |
323 | spin_lock_irqsave(&divert_lock, flags); | |
475be4d8 JP |
324 | ds = table_head; |
325 | table_head = NULL; | |
326 | table_tail = NULL; | |
327 | spin_unlock_irqrestore(&divert_lock, flags); | |
03f18285 TS |
328 | while (ds) { |
329 | ds1 = ds; | |
475be4d8 JP |
330 | ds = ds->next; |
331 | kfree(ds1); | |
332 | } | |
333 | return (0); | |
334 | } | |
335 | ||
336 | spin_lock_irqsave(&divert_lock, flags); | |
337 | ds = table_head; | |
338 | ||
03f18285 TS |
339 | while ((ds) && (idx > 0)) { |
340 | idx--; | |
475be4d8 JP |
341 | ds = ds->next; |
342 | } | |
343 | ||
03f18285 | 344 | if (!ds) { |
475be4d8 JP |
345 | spin_unlock_irqrestore(&divert_lock, flags); |
346 | return (-EINVAL); | |
347 | } | |
348 | ||
349 | if (ds->next) | |
350 | ds->next->prev = ds->prev; /* backward chain */ | |
351 | else | |
352 | table_tail = ds->prev; /* end of chain */ | |
353 | ||
354 | if (ds->prev) | |
355 | ds->prev->next = ds->next; /* forward chain */ | |
356 | else | |
357 | table_head = ds->next; /* start of chain */ | |
358 | ||
359 | spin_unlock_irqrestore(&divert_lock, flags); | |
360 | kfree(ds); | |
361 | return (0); | |
1da177e4 LT |
362 | } /* deleterule */ |
363 | ||
364 | /*******************************************/ | |
365 | /* get a pointer to a specific rule number */ | |
366 | /*******************************************/ | |
367 | divert_rule *getruleptr(int idx) | |
03f18285 TS |
368 | { |
369 | struct deflect_struc *ds = table_head; | |
475be4d8 JP |
370 | |
371 | if (idx < 0) return (NULL); | |
03f18285 TS |
372 | while ((ds) && (idx >= 0)) { |
373 | if (!(idx--)) { | |
374 | return (&ds->rule); | |
475be4d8 JP |
375 | break; |
376 | } | |
377 | ds = ds->next; | |
378 | } | |
379 | return (NULL); | |
1da177e4 LT |
380 | } /* getruleptr */ |
381 | ||
382 | /*************************************************/ | |
383 | /* called from common module on an incoming call */ | |
384 | /*************************************************/ | |
408b664a | 385 | static int isdn_divert_icall(isdn_ctrl *ic) |
03f18285 TS |
386 | { |
387 | int retval = 0; | |
475be4d8 JP |
388 | unsigned long flags; |
389 | struct call_struc *cs = NULL; | |
390 | struct deflect_struc *dv; | |
391 | char *p, *p1; | |
392 | u_char accept; | |
393 | ||
394 | /* first check the internal deflection table */ | |
03f18285 TS |
395 | for (dv = table_head; dv; dv = dv->next) { |
396 | /* scan table */ | |
475be4d8 JP |
397 | if (((dv->rule.callopt == 1) && (ic->command == ISDN_STAT_ICALLW)) || |
398 | ((dv->rule.callopt == 2) && (ic->command == ISDN_STAT_ICALL))) | |
399 | continue; /* call option check */ | |
400 | if (!(dv->rule.drvid & (1L << ic->driver))) | |
401 | continue; /* driver not matching */ | |
402 | if ((dv->rule.si1) && (dv->rule.si1 != ic->parm.setup.si1)) | |
403 | continue; /* si1 not matching */ | |
404 | if ((dv->rule.si2) && (dv->rule.si2 != ic->parm.setup.si2)) | |
405 | continue; /* si2 not matching */ | |
406 | ||
407 | p = dv->rule.my_msn; | |
408 | p1 = ic->parm.setup.eazmsn; | |
409 | accept = 0; | |
03f18285 TS |
410 | while (*p) { |
411 | /* complete compare */ | |
412 | if (*p == '-') { | |
413 | accept = 1; /* call accepted */ | |
475be4d8 JP |
414 | break; |
415 | } | |
416 | if (*p++ != *p1++) | |
417 | break; /* not accepted */ | |
418 | if ((!*p) && (!*p1)) | |
419 | accept = 1; | |
420 | } /* complete compare */ | |
421 | if (!accept) continue; /* not accepted */ | |
422 | ||
03f18285 TS |
423 | if ((strcmp(dv->rule.caller, "0")) || |
424 | (ic->parm.setup.phone[0])) { | |
425 | p = dv->rule.caller; | |
475be4d8 JP |
426 | p1 = ic->parm.setup.phone; |
427 | accept = 0; | |
03f18285 TS |
428 | while (*p) { |
429 | /* complete compare */ | |
430 | if (*p == '-') { | |
431 | accept = 1; /* call accepted */ | |
475be4d8 JP |
432 | break; |
433 | } | |
434 | if (*p++ != *p1++) | |
435 | break; /* not accepted */ | |
436 | if ((!*p) && (!*p1)) | |
437 | accept = 1; | |
438 | } /* complete compare */ | |
439 | if (!accept) continue; /* not accepted */ | |
440 | } | |
441 | ||
03f18285 TS |
442 | switch (dv->rule.action) { |
443 | case DEFLECT_IGNORE: | |
287ecefb | 444 | return 0; |
475be4d8 JP |
445 | |
446 | case DEFLECT_ALERT: | |
447 | case DEFLECT_PROCEED: | |
448 | case DEFLECT_REPORT: | |
449 | case DEFLECT_REJECT: | |
450 | if (dv->rule.action == DEFLECT_PROCEED) | |
451 | if ((!if_used) || ((!extern_wait_max) && (!dv->rule.waittime))) | |
452 | return (0); /* no external deflection needed */ | |
453 | if (!(cs = kmalloc(sizeof(struct call_struc), GFP_ATOMIC))) | |
454 | return (0); /* no memory */ | |
455 | init_timer(&cs->timer); | |
456 | cs->info[0] = '\0'; | |
457 | cs->timer.function = deflect_timer_expire; | |
458 | cs->timer.data = (ulong) cs; /* pointer to own structure */ | |
459 | ||
460 | cs->ics = *ic; /* copy incoming data */ | |
461 | if (!cs->ics.parm.setup.phone[0]) strcpy(cs->ics.parm.setup.phone, "0"); | |
462 | if (!cs->ics.parm.setup.eazmsn[0]) strcpy(cs->ics.parm.setup.eazmsn, "0"); | |
463 | cs->ics.parm.setup.screen = dv->rule.screen; | |
464 | if (dv->rule.waittime) | |
465 | cs->timer.expires = jiffies + (HZ * dv->rule.waittime); | |
03f18285 TS |
466 | else if (dv->rule.action == DEFLECT_PROCEED) |
467 | cs->timer.expires = jiffies + (HZ * extern_wait_max); | |
475be4d8 | 468 | else |
03f18285 | 469 | cs->timer.expires = 0; |
475be4d8 JP |
470 | cs->akt_state = dv->rule.action; |
471 | spin_lock_irqsave(&divert_lock, flags); | |
472 | cs->divert_id = next_id++; /* new sequence number */ | |
473 | spin_unlock_irqrestore(&divert_lock, flags); | |
474 | cs->prev = NULL; | |
03f18285 TS |
475 | if (cs->akt_state == DEFLECT_ALERT) { |
476 | strcpy(cs->deflect_dest, dv->rule.to_nr); | |
477 | if (!cs->timer.expires) { | |
478 | strcpy(ic->parm.setup.eazmsn, | |
479 | "Testtext direct"); | |
475be4d8 JP |
480 | ic->parm.setup.screen = dv->rule.screen; |
481 | strlcpy(ic->parm.setup.phone, dv->rule.to_nr, sizeof(ic->parm.setup.phone)); | |
482 | cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ | |
483 | cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); | |
484 | retval = 5; | |
03f18285 | 485 | } else |
475be4d8 | 486 | retval = 1; /* alerting */ |
03f18285 TS |
487 | } else { |
488 | cs->deflect_dest[0] = '\0'; | |
475be4d8 JP |
489 | retval = 4; /* only proceed */ |
490 | } | |
491 | sprintf(cs->info, "%d 0x%lx %s %s %s %s 0x%x 0x%x %d %d %s\n", | |
492 | cs->akt_state, | |
493 | cs->divert_id, | |
494 | divert_if.drv_to_name(cs->ics.driver), | |
495 | (ic->command == ISDN_STAT_ICALLW) ? "1" : "0", | |
496 | cs->ics.parm.setup.phone, | |
497 | cs->ics.parm.setup.eazmsn, | |
498 | cs->ics.parm.setup.si1, | |
499 | cs->ics.parm.setup.si2, | |
500 | cs->ics.parm.setup.screen, | |
501 | dv->rule.waittime, | |
502 | cs->deflect_dest); | |
503 | if ((dv->rule.action == DEFLECT_REPORT) || | |
03f18285 TS |
504 | (dv->rule.action == DEFLECT_REJECT)) { |
505 | put_info_buffer(cs->info); | |
475be4d8 JP |
506 | kfree(cs); /* remove */ |
507 | return ((dv->rule.action == DEFLECT_REPORT) ? 0 : 2); /* nothing to do */ | |
508 | } | |
509 | break; | |
510 | ||
511 | default: | |
287ecefb | 512 | return 0; /* ignore call */ |
475be4d8 | 513 | } /* switch action */ |
287ecefb | 514 | break; /* will break the 'for' looping */ |
475be4d8 JP |
515 | } /* scan_table */ |
516 | ||
03f18285 TS |
517 | if (cs) { |
518 | cs->prev = NULL; | |
475be4d8 JP |
519 | spin_lock_irqsave(&divert_lock, flags); |
520 | cs->next = divert_head; | |
521 | divert_head = cs; | |
522 | if (cs->timer.expires) add_timer(&cs->timer); | |
523 | spin_unlock_irqrestore(&divert_lock, flags); | |
524 | ||
525 | put_info_buffer(cs->info); | |
526 | return (retval); | |
03f18285 | 527 | } else |
475be4d8 | 528 | return (0); |
1da177e4 LT |
529 | } /* isdn_divert_icall */ |
530 | ||
531 | ||
532 | void deleteprocs(void) | |
03f18285 TS |
533 | { |
534 | struct call_struc *cs, *cs1; | |
475be4d8 JP |
535 | unsigned long flags; |
536 | ||
537 | spin_lock_irqsave(&divert_lock, flags); | |
538 | cs = divert_head; | |
539 | divert_head = NULL; | |
03f18285 TS |
540 | while (cs) { |
541 | del_timer(&cs->timer); | |
475be4d8 JP |
542 | cs1 = cs; |
543 | cs = cs->next; | |
544 | kfree(cs1); | |
545 | } | |
546 | spin_unlock_irqrestore(&divert_lock, flags); | |
1da177e4 LT |
547 | } /* deleteprocs */ |
548 | ||
549 | /****************************************************/ | |
550 | /* put a address including address type into buffer */ | |
551 | /****************************************************/ | |
408b664a | 552 | static int put_address(char *st, u_char *p, int len) |
03f18285 TS |
553 | { |
554 | u_char retval = 0; | |
475be4d8 JP |
555 | u_char adr_typ = 0; /* network standard */ |
556 | ||
557 | if (len < 2) return (retval); | |
03f18285 TS |
558 | if (*p == 0xA1) { |
559 | retval = *(++p) + 2; /* total length */ | |
475be4d8 JP |
560 | if (retval > len) return (0); /* too short */ |
561 | len = retval - 2; /* remaining length */ | |
562 | if (len < 3) return (0); | |
563 | if ((*(++p) != 0x0A) || (*(++p) != 1)) return (0); | |
564 | adr_typ = *(++p); | |
565 | len -= 3; | |
566 | p++; | |
567 | if (len < 2) return (0); | |
568 | if (*p++ != 0x12) return (0); | |
569 | if (*p > len) return (0); /* check number length */ | |
570 | len = *p++; | |
03f18285 TS |
571 | } else if (*p == 0x80) { |
572 | retval = *(++p) + 2; /* total length */ | |
573 | if (retval > len) return (0); | |
574 | len = retval - 2; | |
575 | p++; | |
576 | } else | |
577 | return (0); /* invalid address information */ | |
475be4d8 JP |
578 | |
579 | sprintf(st, "%d ", adr_typ); | |
580 | st += strlen(st); | |
581 | if (!len) | |
582 | *st++ = '-'; | |
583 | else | |
584 | while (len--) | |
585 | *st++ = *p++; | |
586 | *st = '\0'; | |
587 | return (retval); | |
1da177e4 LT |
588 | } /* put_address */ |
589 | ||
590 | /*************************************/ | |
d6e05edc | 591 | /* report a successful interrogation */ |
1da177e4 | 592 | /*************************************/ |
408b664a | 593 | static int interrogate_success(isdn_ctrl *ic, struct call_struc *cs) |
03f18285 TS |
594 | { |
595 | char *src = ic->parm.dss1_io.data; | |
475be4d8 JP |
596 | int restlen = ic->parm.dss1_io.datalen; |
597 | int cnt = 1; | |
598 | u_char n, n1; | |
599 | char st[90], *p, *stp; | |
600 | ||
601 | if (restlen < 2) return (-100); /* frame too short */ | |
602 | if (*src++ != 0x30) return (-101); | |
603 | if ((n = *src++) > 0x81) return (-102); /* invalid length field */ | |
604 | restlen -= 2; /* remaining bytes */ | |
03f18285 TS |
605 | if (n == 0x80) { |
606 | if (restlen < 2) return (-103); | |
475be4d8 JP |
607 | if ((*(src + restlen - 1)) || (*(src + restlen - 2))) return (-104); |
608 | restlen -= 2; | |
03f18285 TS |
609 | } else if (n == 0x81) { |
610 | n = *src++; | |
611 | restlen--; | |
612 | if (n > restlen) return (-105); | |
613 | restlen = n; | |
614 | } else if (n > restlen) | |
615 | return (-106); | |
475be4d8 | 616 | else |
03f18285 | 617 | restlen = n; /* standard format */ |
475be4d8 JP |
618 | if (restlen < 3) return (-107); /* no procedure */ |
619 | if ((*src++ != 2) || (*src++ != 1) || (*src++ != 0x0B)) return (-108); | |
620 | restlen -= 3; | |
621 | if (restlen < 2) return (-109); /* list missing */ | |
03f18285 TS |
622 | if (*src == 0x31) { |
623 | src++; | |
475be4d8 JP |
624 | if ((n = *src++) > 0x81) return (-110); /* invalid length field */ |
625 | restlen -= 2; /* remaining bytes */ | |
03f18285 TS |
626 | if (n == 0x80) { |
627 | if (restlen < 2) return (-111); | |
475be4d8 JP |
628 | if ((*(src + restlen - 1)) || (*(src + restlen - 2))) return (-112); |
629 | restlen -= 2; | |
03f18285 TS |
630 | } else if (n == 0x81) { |
631 | n = *src++; | |
632 | restlen--; | |
633 | if (n > restlen) return (-113); | |
634 | restlen = n; | |
635 | } else if (n > restlen) | |
636 | return (-114); | |
475be4d8 | 637 | else |
03f18285 | 638 | restlen = n; /* standard format */ |
475be4d8 JP |
639 | } /* result list header */ |
640 | ||
03f18285 TS |
641 | while (restlen >= 2) { |
642 | stp = st; | |
475be4d8 JP |
643 | sprintf(stp, "%d 0x%lx %d %s ", DIVERT_REPORT, ic->parm.dss1_io.ll_id, |
644 | cnt++, divert_if.drv_to_name(ic->driver)); | |
645 | stp += strlen(stp); | |
646 | if (*src++ != 0x30) return (-115); /* invalid enum */ | |
647 | n = *src++; | |
648 | restlen -= 2; | |
649 | if (n > restlen) return (-116); /* enum length wrong */ | |
650 | restlen -= n; | |
651 | p = src; /* one entry */ | |
652 | src += n; | |
653 | if (!(n1 = put_address(stp, p, n & 0xFF))) continue; | |
654 | stp += strlen(stp); | |
655 | p += n1; | |
656 | n -= n1; | |
657 | if (n < 6) continue; /* no service and proc */ | |
658 | if ((*p++ != 0x0A) || (*p++ != 1)) continue; | |
659 | sprintf(stp, " 0x%02x ", (*p++) & 0xFF); | |
660 | stp += strlen(stp); | |
661 | if ((*p++ != 0x0A) || (*p++ != 1)) continue; | |
662 | sprintf(stp, "%d ", (*p++) & 0xFF); | |
663 | stp += strlen(stp); | |
664 | n -= 6; | |
03f18285 TS |
665 | if (n > 2) { |
666 | if (*p++ != 0x30) continue; | |
475be4d8 JP |
667 | if (*p > (n - 2)) continue; |
668 | n = *p++; | |
669 | if (!(n1 = put_address(stp, p, n & 0xFF))) continue; | |
670 | stp += strlen(stp); | |
671 | } | |
672 | sprintf(stp, "\n"); | |
673 | put_info_buffer(st); | |
674 | } /* while restlen */ | |
675 | if (restlen) return (-117); | |
676 | return (0); | |
1da177e4 LT |
677 | } /* interrogate_success */ |
678 | ||
679 | /*********************************************/ | |
680 | /* callback for protocol specific extensions */ | |
681 | /*********************************************/ | |
408b664a | 682 | static int prot_stat_callback(isdn_ctrl *ic) |
03f18285 TS |
683 | { |
684 | struct call_struc *cs, *cs1; | |
475be4d8 JP |
685 | int i; |
686 | unsigned long flags; | |
687 | ||
688 | cs = divert_head; /* start of list */ | |
689 | cs1 = NULL; | |
03f18285 TS |
690 | while (cs) { |
691 | if (ic->driver == cs->ics.driver) { | |
692 | switch (cs->ics.arg) { | |
693 | case DSS1_CMD_INVOKE: | |
694 | if ((cs->ics.parm.dss1_io.ll_id == ic->parm.dss1_io.ll_id) && | |
695 | (cs->ics.parm.dss1_io.hl_id == ic->parm.dss1_io.hl_id)) { | |
696 | switch (ic->arg) { | |
697 | case DSS1_STAT_INVOKE_ERR: | |
698 | sprintf(cs->info, "128 0x%lx 0x%x\n", | |
699 | ic->parm.dss1_io.ll_id, | |
700 | ic->parm.dss1_io.timeout); | |
701 | put_info_buffer(cs->info); | |
702 | break; | |
703 | ||
704 | case DSS1_STAT_INVOKE_RES: | |
705 | switch (cs->ics.parm.dss1_io.proc) { | |
706 | case 7: | |
707 | case 8: | |
708 | put_info_buffer(cs->info); | |
709 | break; | |
475be4d8 | 710 | |
03f18285 TS |
711 | case 11: |
712 | i = interrogate_success(ic, cs); | |
713 | if (i) | |
714 | sprintf(cs->info, "%d 0x%lx %d\n", DIVERT_REPORT, | |
715 | ic->parm.dss1_io.ll_id, i); | |
716 | put_info_buffer(cs->info); | |
475be4d8 JP |
717 | break; |
718 | ||
719 | default: | |
03f18285 | 720 | printk(KERN_WARNING "dss1_divert: unknown proc %d\n", cs->ics.parm.dss1_io.proc); |
475be4d8 JP |
721 | break; |
722 | } | |
03f18285 TS |
723 | |
724 | break; | |
725 | ||
726 | default: | |
727 | printk(KERN_WARNING "dss1_divert unknown invoke answer %lx\n", ic->arg); | |
728 | break; | |
729 | } | |
730 | cs1 = cs; /* remember structure */ | |
731 | cs = NULL; | |
732 | continue; /* abort search */ | |
733 | } /* id found */ | |
734 | break; | |
475be4d8 JP |
735 | |
736 | case DSS1_CMD_INVOKE_ABORT: | |
737 | printk(KERN_WARNING "dss1_divert unhandled invoke abort\n"); | |
738 | break; | |
739 | ||
740 | default: | |
741 | printk(KERN_WARNING "dss1_divert unknown cmd 0x%lx\n", cs->ics.arg); | |
742 | break; | |
743 | } /* switch ics.arg */ | |
744 | cs = cs->next; | |
745 | } /* driver ok */ | |
746 | } | |
747 | ||
03f18285 TS |
748 | if (!cs1) { |
749 | printk(KERN_WARNING "dss1_divert unhandled process\n"); | |
475be4d8 JP |
750 | return (0); |
751 | } | |
752 | ||
03f18285 | 753 | if (cs1->ics.driver == -1) { |
475be4d8 JP |
754 | spin_lock_irqsave(&divert_lock, flags); |
755 | del_timer(&cs1->timer); | |
756 | if (cs1->prev) | |
757 | cs1->prev->next = cs1->next; /* forward link */ | |
758 | else | |
759 | divert_head = cs1->next; | |
760 | if (cs1->next) | |
761 | cs1->next->prev = cs1->prev; /* back link */ | |
762 | spin_unlock_irqrestore(&divert_lock, flags); | |
763 | kfree(cs1); | |
764 | } | |
765 | ||
766 | return (0); | |
1da177e4 LT |
767 | } /* prot_stat_callback */ |
768 | ||
769 | ||
770 | /***************************/ | |
771 | /* status callback from HL */ | |
772 | /***************************/ | |
408b664a | 773 | static int isdn_divert_stat_callback(isdn_ctrl *ic) |
03f18285 TS |
774 | { |
775 | struct call_struc *cs, *cs1; | |
475be4d8 JP |
776 | unsigned long flags; |
777 | int retval; | |
778 | ||
779 | retval = -1; | |
780 | cs = divert_head; /* start of list */ | |
03f18285 TS |
781 | while (cs) { |
782 | if ((ic->driver == cs->ics.driver) && | |
783 | (ic->arg == cs->ics.arg)) { | |
784 | switch (ic->command) { | |
785 | case ISDN_STAT_DHUP: | |
786 | sprintf(cs->info, "129 0x%lx\n", cs->divert_id); | |
787 | del_timer(&cs->timer); | |
788 | cs->ics.driver = -1; | |
789 | break; | |
475be4d8 JP |
790 | |
791 | case ISDN_STAT_CAUSE: | |
792 | sprintf(cs->info, "130 0x%lx %s\n", cs->divert_id, ic->parm.num); | |
793 | break; | |
794 | ||
795 | case ISDN_STAT_REDIR: | |
796 | sprintf(cs->info, "131 0x%lx\n", cs->divert_id); | |
797 | del_timer(&cs->timer); | |
798 | cs->ics.driver = -1; | |
799 | break; | |
800 | ||
801 | default: | |
802 | sprintf(cs->info, "999 0x%lx 0x%x\n", cs->divert_id, (int)(ic->command)); | |
803 | break; | |
804 | } | |
805 | put_info_buffer(cs->info); | |
806 | retval = 0; | |
807 | } | |
808 | cs1 = cs; | |
809 | cs = cs->next; | |
03f18285 | 810 | if (cs1->ics.driver == -1) { |
475be4d8 JP |
811 | spin_lock_irqsave(&divert_lock, flags); |
812 | if (cs1->prev) | |
813 | cs1->prev->next = cs1->next; /* forward link */ | |
814 | else | |
815 | divert_head = cs1->next; | |
816 | if (cs1->next) | |
817 | cs1->next->prev = cs1->prev; /* back link */ | |
818 | spin_unlock_irqrestore(&divert_lock, flags); | |
819 | kfree(cs1); | |
820 | } | |
821 | } | |
822 | return (retval); /* not found */ | |
823 | } /* isdn_divert_stat_callback */ | |
1da177e4 LT |
824 | |
825 | ||
826 | /********************/ | |
827 | /* callback from ll */ | |
475be4d8 | 828 | /********************/ |
1da177e4 LT |
829 | int ll_callback(isdn_ctrl *ic) |
830 | { | |
03f18285 TS |
831 | switch (ic->command) { |
832 | case ISDN_STAT_ICALL: | |
475be4d8 JP |
833 | case ISDN_STAT_ICALLW: |
834 | return (isdn_divert_icall(ic)); | |
835 | break; | |
836 | ||
837 | case ISDN_STAT_PROT: | |
03f18285 TS |
838 | if ((ic->arg & 0xFF) == ISDN_PTYPE_EURO) { |
839 | if (ic->arg != DSS1_STAT_INVOKE_BRD) | |
475be4d8 JP |
840 | return (prot_stat_callback(ic)); |
841 | else | |
842 | return (0); /* DSS1 invoke broadcast */ | |
03f18285 | 843 | } else |
475be4d8 JP |
844 | return (-1); /* protocol not euro */ |
845 | ||
846 | default: | |
847 | return (isdn_divert_stat_callback(ic)); | |
848 | } | |
1da177e4 | 849 | } /* ll_callback */ |