-
Notifications
You must be signed in to change notification settings - Fork 565
/
xjab_wlist.c
660 lines (600 loc) · 14.5 KB
/
xjab_wlist.c
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
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
/*
* eXtended JABber module - worker implementation
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of opensips, a free SIP server.
*
* opensips 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
*
* opensips is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* ---
*
* History
* -------
* 2003-02-24 added 'xj_wlist_set_flag' function (dcm)
* 2003-03-11 major locking changes - uses locking.h (andrei)
*
*/
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include "../../dprint.h"
#include "../../mem/mem.h"
#include "../../mem/shm_mem.h"
#include "xjab_worker.h"
#include "mdefines.h"
#define XJ_DEF_JDELIM '*'
/**
* init a workers list
* - pipes : communication pipes
* - size : size of list - number of workers
* - max : maximum number of jobs per worker
* return : pointer to workers list or NULL on error
*/
xj_wlist xj_wlist_init(int **pipes, int size, int max, int cache_time,
int sleep_time, int delay_time)
{
int i;
xj_wlist jwl = NULL;
if(pipes == NULL || size <= 0 || max <= 0)
return NULL;
#ifdef XJ_EXTRA_DEBUG
LM_DBG("-----START-----\n");
#endif
jwl = (xj_wlist)_M_SHM_MALLOC(sizeof(t_xj_wlist));
if(jwl == NULL)
return NULL;
jwl->len = size;
jwl->maxj = max;
jwl->cachet = cache_time;
jwl->delayt = delay_time;
jwl->sleept = sleep_time;
jwl->aliases = NULL;
jwl->sems = NULL;
i = 0;
/* alloc locks*/
if((jwl->sems = lock_set_alloc(size)) == NULL){
LM_CRIT("failed to alloc lock set\n");
goto clean;
};
/* init the locks*/
if (lock_set_init(jwl->sems)==0){
LM_CRIT("failed to initialize the locks\n");
goto clean;
};
jwl->workers = (xj_worker)_M_SHM_MALLOC(size*sizeof(t_xj_worker));
if(jwl->workers == NULL){
lock_set_destroy(jwl->sems);
goto clean;
}
for(i = 0; i < size; i++)
{
jwl->workers[i].nr = 0;
jwl->workers[i].pid = 0;
jwl->workers[i].wpipe = pipes[i][1];
jwl->workers[i].rpipe = pipes[i][0];
if((jwl->workers[i].sip_ids = newtree234(xj_jkey_cmp)) == NULL){
lock_set_destroy(jwl->sems);
goto clean;
}
}
return jwl;
clean:
LM_DBG("error occurred -> cleaning\n");
if(jwl->sems != NULL)
lock_set_dealloc(jwl->sems);
if(jwl->workers != NULL)
{
while(i>=0)
{
if(jwl->workers[i].sip_ids == NULL)
free2tree234(jwl->workers[i].sip_ids, xj_jkey_free_p);
i--;
}
_M_SHM_FREE(jwl->workers);
}
_M_SHM_FREE(jwl);
return NULL;
}
/**
* set the p.id's of the workers
* - jwl : pointer to the workers list
* - pids : p.id's array
* - size : number of pids
* return : 0 on success or <0 on error
*/
int xj_wlist_set_pid(xj_wlist jwl, int pid, int idx)
{
if(jwl == NULL || pid <= 0 || idx < 0 || idx >= jwl->len)
return -1;
lock_set_get(jwl->sems, idx);
jwl->workers[idx].pid = pid;
lock_set_release(jwl->sems, idx);
return 0;
}
/**
* free jab_wlist
* - jwl : pointer to the workers list
*/
void xj_wlist_free(xj_wlist jwl)
{
int i;
#ifdef XJ_EXTRA_DEBUG
LM_DBG("freeing 'xj_wlist' memory ...\n");
#endif
if(jwl == NULL)
return;
if(jwl->workers != NULL)
{
for(i=0; i<jwl->len; i++)
free2tree234(jwl->workers[i].sip_ids, xj_jkey_free_p);
_M_SHM_FREE(jwl->workers);
}
if(jwl->aliases != NULL)
{
if(jwl->aliases->d)
_M_SHM_FREE(jwl->aliases->d);
if(jwl->aliases->jdm != NULL)
{
_M_SHM_FREE(jwl->aliases->jdm->s);
_M_SHM_FREE(jwl->aliases->jdm);
}
if(jwl->aliases->proxy != NULL)
{
_M_SHM_FREE(jwl->aliases->proxy->s);
_M_SHM_FREE(jwl->aliases->proxy);
}
if(jwl->aliases->size > 0)
{
for(i=0; i<jwl->aliases->size; i++)
_M_SHM_FREE(jwl->aliases->a[i].s);
_M_SHM_FREE(jwl->aliases->a);
}
_M_SHM_FREE(jwl->aliases);
jwl->aliases = NULL;
}
if(jwl->sems != NULL){
lock_set_destroy(jwl->sems);
lock_set_dealloc(jwl->sems);
}
_M_SHM_FREE(jwl);
}
/**
* return communication pipe with the worker that will process the message for
* the id 'sid' only if it exists, or -1 if error
* - jwl : pointer to the workers list
* - sid : id of the entity (connection to Jabber - usually SHOULD be FROM
* header of the incoming SIP message)
* - p : will point to the SHM location of the 'sid' in jwl
*/
int xj_wlist_check(xj_wlist jwl, xj_jkey jkey, xj_jkey *p)
{
int i;
if(jwl==NULL || jkey==NULL || jkey->id==NULL || jkey->id->s==NULL)
return -1;
i = 0;
*p = NULL;
while(i < jwl->len)
{
lock_set_get(jwl->sems, i);
if(jwl->workers[i].pid <= 0)
{
lock_set_release(jwl->sems, i);
i++;
continue;
}
if((*p = find234(jwl->workers[i].sip_ids, (void*)jkey, NULL)) != NULL)
{
lock_set_release(jwl->sems, i);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("entry exists for <%.*s> in the"
" pool of <%d> [%d]\n",jkey->id->len, jkey->id->s,
jwl->workers[i].pid,i);
#endif
return jwl->workers[i].wpipe;
}
lock_set_release(jwl->sems, i);
i++;
}
#ifdef XJ_EXTRA_DEBUG
LM_DBG("entry does not exist for <%.*s>\n",
jkey->id->len, jkey->id->s);
#endif
return -1;
}
/**
* return communication pipe with the worker that will process the message for
* the id 'sid', or -1 if error
* - jwl : pointer to the workers list
* - sid : id of the entity (connection to Jabber - usually SHOULD be FROM
* header of the incoming SIP message)
* - p : will point to the SHM location of the 'sid' in jwl
*/
int xj_wlist_get(xj_wlist jwl, xj_jkey jkey, xj_jkey *p)
{
int i = 0, pos = -1, min = 100000;
xj_jkey msid = NULL;
if(jwl==NULL || jkey==NULL || jkey->id==NULL || jkey->id->s==NULL)
return -1;
*p = NULL;
while(i < jwl->len)
{
lock_set_get(jwl->sems, i);
if(jwl->workers[i].pid <= 0)
{
lock_set_release(jwl->sems, i);
i++;
continue;
}
if((*p = find234(jwl->workers[i].sip_ids, (void*)jkey, NULL))!=NULL)
{
if(pos >= 0)
lock_set_release(jwl->sems, pos);
lock_set_release(jwl->sems, i);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("entry already exists for <%.*s> in the"
" pool of <%d> [%d]\n",jkey->id->len, jkey->id->s,
jwl->workers[i].pid,i);
#endif
return jwl->workers[i].wpipe;
}
if(min > jwl->workers[i].nr)
{
if(pos >= 0)
lock_set_release(jwl->sems, pos);
pos = i;
min = jwl->workers[i].nr;
}
else
lock_set_release(jwl->sems, i);
i++;
}
if(pos >= 0 && jwl->workers[pos].nr < jwl->maxj)
{
jwl->workers[pos].nr++;
msid = (xj_jkey)_M_SHM_MALLOC(sizeof(t_xj_jkey));
if(msid == NULL)
goto error;
msid->id = (str*)_M_SHM_MALLOC(sizeof(str));
if(msid->id == NULL)
{
_M_SHM_FREE(msid);
goto error;
}
msid->id->s = (char*)_M_SHM_MALLOC(jkey->id->len);
if(msid->id == NULL)
{
_M_SHM_FREE(msid->id);
_M_SHM_FREE(msid);
goto error;
}
if((*p = add234(jwl->workers[pos].sip_ids, msid)) != NULL)
{
msid->id->len = jkey->id->len;
memcpy(msid->id->s, jkey->id->s, jkey->id->len);
msid->hash = jkey->hash;
msid->flag = XJ_FLAG_OPEN;
lock_set_release(jwl->sems, pos);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("new entry for <%.*s> in the pool of"
" <%d> - [%d]\n", jkey->id->len, jkey->id->s,
jwl->workers[pos].pid, pos);
#endif
return jwl->workers[pos].wpipe;
}
_M_SHM_FREE(msid->id->s);
_M_SHM_FREE(msid->id);
_M_SHM_FREE(msid);
}
error:
if(pos >= 0)
lock_set_release(jwl->sems, pos);
LM_DBG("cannot create a new entry for <%.*s>\n",
jkey->id->len, jkey->id->s);
return -1;
}
/**
* set the flag of the connection identified by 'jkey'
*
*/
int xj_wlist_set_flag(xj_wlist jwl, xj_jkey jkey, int fl)
{
int i;
xj_jkey p = NULL;
if(jwl==NULL || jkey==NULL || jkey->id==NULL || jkey->id->s==NULL)
return -1;
#ifdef XJ_EXTRA_DEBUG
LM_DBG("looking for <%.*s>"
" having id=%d\n", jkey->id->len, jkey->id->s, jkey->hash);
#endif
i = 0;
while(i < jwl->len)
{
lock_set_get(jwl->sems, i);
if(jwl->workers[i].pid <= 0)
{
lock_set_release(jwl->sems, i);
i++;
continue;
}
if((p=find234(jwl->workers[i].sip_ids, (void*)jkey, NULL)) != NULL)
{
p->flag = fl;
lock_set_release(jwl->sems, i);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("the connection for <%.*s>"
" marked with flag=%d", jkey->id->len, jkey->id->s, fl);
#endif
return jwl->workers[i].wpipe;
}
lock_set_release(jwl->sems, i);
i++;
}
#ifdef XJ_EXTRA_DEBUG
LM_DBG("entry does not exist for <%.*s>\n",
jkey->id->len, jkey->id->s);
#endif
return -1;
}
/**
* set IM aliases, jdomain and outbound proxy
*
* return 0 if OK
*/
int xj_wlist_set_aliases(xj_wlist jwl, char *als, char *jd, char *pa)
{
char *p, *p0, *p1;
int i, n;
if(jwl == NULL)
return -1;
if(!jd) // || !als || strlen(als)<2)
return 0;
if((jwl->aliases = (xj_jalias)_M_SHM_MALLOC(sizeof(t_xj_jalias)))==NULL)
{
LM_DBG("not enough SHMemory.\n");
return -1;
}
jwl->aliases->jdm = NULL;
jwl->aliases->proxy = NULL;
jwl->aliases->dlm = XJ_DEF_JDELIM; // default user part delimiter
jwl->aliases->size = 0;
jwl->aliases->a = NULL;
jwl->aliases->d = NULL;
// set the jdomain
if(jd != NULL && (n=strlen(jd))>2)
{
p = jd;
while(p < jd+n && *p!='=')
p++;
if(p<jd+n-1)
{
jwl->aliases->dlm = *(p+1);
n = p - jd;
}
if((jwl->aliases->jdm = (str*)_M_SHM_MALLOC(sizeof(str)))== NULL)
{
LM_DBG("not enough SHMemory!?\n");
_M_SHM_FREE(jwl->aliases);
jwl->aliases = NULL;
return -1;
}
jwl->aliases->jdm->len = n;
if((jwl->aliases->jdm->s=(char*)_M_SHM_MALLOC(jwl->aliases->jdm->len))
== NULL)
{
LM_DBG("not enough SHMemory!?!\n");
_M_SHM_FREE(jwl->aliases->jdm);
_M_SHM_FREE(jwl->aliases);
jwl->aliases = NULL;
}
strncpy(jwl->aliases->jdm->s, jd, jwl->aliases->jdm->len);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("jdomain=%.*s delim=%c\n",
jwl->aliases->jdm->len, jwl->aliases->jdm->s, jwl->aliases->dlm);
#endif
}
// set the proxy address
if(pa && strlen(pa)>0)
{
if((jwl->aliases->proxy = (str*)_M_SHM_MALLOC(sizeof(str)))==NULL)
{
LM_DBG(" not enough SHMemory!!\n");
goto clean3;
}
i = jwl->aliases->proxy->len = strlen(pa);
// check if proxy address has sip: prefix
if(i < 4 || pa[0]!='s' || pa[1]!='i' || pa[2]!='p' || pa[3]!=':')
jwl->aliases->proxy->len += 4;
if((jwl->aliases->proxy->s=
(char*)_M_SHM_MALLOC(jwl->aliases->proxy->len+1))
== NULL)
{
LM_DBG("not enough SHMemory!!!\n");
_M_SHM_FREE(jwl->aliases->proxy);
goto clean3;
}
p0 = jwl->aliases->proxy->s;
if(jwl->aliases->proxy->len != i)
{
strncpy(p0, "sip:", 5);
p0 += 4;
}
strncpy(p0, pa, i+1);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("outbound proxy=[%.*s]\n",
jwl->aliases->proxy->len, jwl->aliases->proxy->s);
#endif
}
// set the IM aliases
if(!als || strlen(als)<2)
return 0;
if((p = strchr(als, ';')) == NULL)
{
LM_DBG("bad parameter value\n");
return -1;
}
if((jwl->aliases->size = atoi(als)) <= 0)
{
LM_DBG("wrong number of aliases\n");
return 0;
}
jwl->aliases->d = (char*)_M_SHM_MALLOC(jwl->aliases->size*sizeof(char));
if(jwl->aliases->d == NULL)
{
LM_DBG("not enough SHMemory..\n");
goto clean2;
}
memset(jwl->aliases->d, 0, jwl->aliases->size);
jwl->aliases->a = (str*)_M_SHM_MALLOC(jwl->aliases->size*sizeof(str));
if(jwl->aliases->a == NULL)
{
LM_DBG("not enough SHMemory..\n");
goto clean1;
}
p++;
for(i=0; i<jwl->aliases->size; i++)
{
if((p0 = strchr(p, ';'))==NULL)
{
LM_DBG("bad parameter value format\n");
goto clean;
}
n = p0 - p;
p1 = strchr(p, '=');
if(p1 && p1<p0-1)
{
jwl->aliases->d[i] = *(p1+1);
n = p1 - p;
}
jwl->aliases->a[i].len = n;
if((jwl->aliases->a[i].s = (char*)_M_SHM_MALLOC(jwl->aliases->a[i].len))
== NULL)
{
LM_DBG("not enough SHMemory!\n");
goto clean;
}
strncpy(jwl->aliases->a[i].s, p, jwl->aliases->a[i].len);
#ifdef XJ_EXTRA_DEBUG
LM_DBG("alias[%d/%d]=%.*s delim=%c\n",
i+1, jwl->aliases->size, jwl->aliases->a[i].len,
jwl->aliases->a[i].s, jwl->aliases->d[i]?jwl->aliases->d[i]:'X');
#endif
p = p0 + 1;
}
return 0;
clean:
while(i>0)
{
_M_SHM_FREE(jwl->aliases->a[i-1].s);
i--;
}
_M_SHM_FREE(jwl->aliases->a);
clean1:
if(jwl->aliases->d)
_M_SHM_FREE(jwl->aliases->d);
clean2:
if(jwl->aliases->proxy)
{
_M_SHM_FREE(jwl->aliases->proxy->s);
_M_SHM_FREE(jwl->aliases->proxy);
}
clean3:
if(jwl->aliases->jdm)
{
_M_SHM_FREE(jwl->aliases->jdm->s);
_M_SHM_FREE(jwl->aliases->jdm);
}
_M_SHM_FREE(jwl->aliases);
jwl->aliases = NULL;
return -1;
}
/**
* check if the addr contains jdomain or an alias
* - jwl : pointer to the workers list
* - addr: the address to check against jdomain and aliases
* returns 0 - if contains or !=0 if not
*/
int xj_wlist_check_aliases(xj_wlist jwl, str *addr)
{
char *p, *p0;
int ll, i;
if(!jwl || !jwl->aliases || !addr || !addr->s || addr->len<=0)
return -1;
// find '@'
p = addr->s;
while(p < addr->s + addr->len && *p != '@')
p++;
if(p >= addr->s + addr->len)
return -1;
p++;
ll = addr->s + addr->len - p;
// check parameters
p0 = p;
while(p0 < p + ll && *p0 != ';')
p0++;
if(p0 < p + ll)
ll = p0 - p;
else
ll = addr->s + addr->len - p;
if(jwl->aliases->jdm && jwl->aliases->jdm->len == ll &&
!strncasecmp(jwl->aliases->jdm->s, p, ll))
return 0;
if(jwl->aliases->size <= 0)
return 1;
for(i = 0; i < jwl->aliases->size; i++)
if(jwl->aliases->a[i].len == ll &&
!strncasecmp(p, jwl->aliases->a[i].s, ll))
return 0;
return 1;
}
/**
* delete an entity from working list of a worker
* - jwl : pointer to the workers list
* - sid : id of the entity (connection to Jabber - usually SHOULD be FROM
* header of the incoming SIP message
* - _pid : process id of the worker
*/
void xj_wlist_del(xj_wlist jwl, xj_jkey jkey, int _pid)
{
int i;
void *p;
if(jwl==NULL || jkey==NULL || jkey->id==NULL || jkey->id->s==NULL)
return;
for(i=0; i < jwl->len; i++)
if(jwl->workers[i].pid == _pid)
break;
if(i >= jwl->len)
{
LM_DBG("%d: key <%.*s> not found in [%d]...\n",
_pid, jkey->id->len, jkey->id->s, i);
return;
}
#ifdef XJ_EXTRA_DEBUG
LM_DBG("%d: trying to delete entry for <%.*s>...\n",
_pid, jkey->id->len, jkey->id->s);
#endif
lock_set_get(jwl->sems, i);
p = del234(jwl->workers[i].sip_ids, (void*)jkey);
if(p != NULL)
{
jwl->workers[i].nr--;
#ifdef XJ_EXTRA_DEBUG
LM_DBG("%d: sip id <%.*s> deleted\n", _pid,
jkey->id->len, jkey->id->s);
#endif
xj_jkey_free_p(p);
}
lock_set_release(jwl->sems, i);
}