-
Notifications
You must be signed in to change notification settings - Fork 564
/
rtpengine.c
3814 lines (3331 loc) · 95.5 KB
/
rtpengine.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
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (C) 2003-2008 Sippy Software, Inc., http://www.sippysoft.com
*
* 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:
* ---------
* 2014-06-17 Imported from rtpproxy module
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#ifndef __USE_BSD
#define __USE_BSD
#endif
#include <netinet/ip.h>
#ifndef __FAVOR_BSD
#define __FAVOR_BSD
#endif
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <sys/uio.h>
#include <sys/un.h>
#include <ctype.h>
#include <errno.h>
#include <netdb.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../../str.h"
#include "../../flags.h"
#include "../../sr_module.h"
#include "../../dprint.h"
#include "../../data_lump.h"
#include "../../data_lump_rpl.h"
#include "../../error.h"
#include "../../forward.h"
#include "../../context.h"
#include "../../mem/mem.h"
#include "../../parser/parse_from.h"
#include "../../parser/parse_to.h"
#include "../../parser/parse_uri.h"
#include "../../parser/parser_f.h"
#include "../../parser/sdp/sdp.h"
#include "../../resolve.h"
#include "../../timer.h"
#include "../../trim.h"
#include "../../ut.h"
#include "../../pt.h"
#include "../../pvar.h"
#include "../../db/db.h"
#include "../../msg_translator.h"
#include "../../usr_avp.h"
#include "../../socket_info.h"
#include "../../mod_fix.h"
#include "../../dset.h"
#include "../../route.h"
#include "../../modules/tm/tm_load.h"
#include "../../modules/dialog/dlg_load.h"
#include "../../lib/cJSON.h"
#include "../rtp_relay/rtp_relay.h"
#include "rtpengine.h"
#include "rtpengine_funcs.h"
#include "bencode.h"
#if !defined(AF_LOCAL)
#define AF_LOCAL AF_UNIX
#endif
#if !defined(PF_LOCAL)
#define PF_LOCAL PF_UNIX
#endif
#define DEFAULT_RTPE_SET_ID 0
#define MI_ENABLE_RTP_ENGINE "rtpengine_enable"
#define MI_MIN_RECHECK_TICKS 0
#define MI_MAX_RECHECK_TICKS (unsigned int)-1
#define MI_SHOW_RTP_ENGINES "rtpengine_show"
#define MI_RELOAD_RTP_ENGINES "rtpengine_reload"
#define MI_RTP_ENGINE_NOT_FOUND "RTP engine not found"
#define MI_RTP_ENGINE_NOT_FOUND_LEN (sizeof(MI_RTP_ENGINE_NOT_FOUND)-1)
#define MI_SET "Set"
#define MI_SET_LEN (sizeof(MI_SET)-1)
#define MI_INDEX "index"
#define MI_INDEX_LEN (sizeof(MI_INDEX)-1)
#define MI_DISABLED "disabled"
#define MI_DISABLED_LEN (sizeof(MI_DISABLED)-1)
#define MI_WEIGHT "weight"
#define MI_WEIGHT_LEN (sizeof(MI_WEIGHT)-1)
#define MI_RECHECK_TICKS "recheck_ticks"
#define MI_RECHECK_T_LEN (sizeof(MI_RECHECK_TICKS)-1)
#define CPORT "22222"
#define rtpe_ctx_tryget() \
(current_processing_ctx == NULL ? NULL : \
((struct rtpe_ctx *)context_get_ptr(CONTEXT_GLOBAL, current_processing_ctx, rtpe_ctx_idx)))
#define rtpe_ctx_set(_ctx) \
context_put_ptr(CONTEXT_GLOBAL, current_processing_ctx, rtpe_ctx_idx, _ctx)
#define RTPE_START_READ() \
do { \
if (rtpe_lock) \
lock_start_read(rtpe_lock); \
} while (0)
#define RTPE_STOP_READ() \
do { \
if (rtpe_lock) \
lock_stop_read(rtpe_lock); \
} while (0)
#define RTPE_IO_ERROR_CLOSE(_fd) \
do { \
if (errno == EPIPE || errno == EBADF) { \
LM_INFO("Closing rtpengine socket %d\n", (_fd)); \
close((_fd)); \
(_fd) = -1; \
} \
} while (0)
enum rtpe_operation {
OP_OFFER = 1,
OP_ANSWER,
OP_DELETE,
OP_START_RECORDING,
OP_STOP_RECORDING,
OP_QUERY,
OP_START_MEDIA,
OP_STOP_MEDIA,
OP_BLOCK_MEDIA,
OP_UNBLOCK_MEDIA,
OP_BLOCK_DTMF,
OP_UNBLOCK_DTMF,
OP_START_FORWARD,
OP_STOP_FORWARD,
OP_PLAY_DTMF,
};
enum rtpe_stat {
STAT_MOS_AVERAGE, STAT_JITTER_AVERAGE, STAT_ROUNDTRIP_AVERAGE, STAT_PACKETLOSS_AVERAGE,
STAT_MOS_MIN, STAT_JITTER_MIN, STAT_ROUNDTRIP_MIN, STAT_PACKETLOSS_MIN,
STAT_MOS_MIN_AT, STAT_JITTER_MIN_AT, STAT_ROUNDTRIP_MIN_AT, STAT_PACKETLOSS_MIN_AT,
STAT_MOS_MAX, STAT_JITTER_MAX, STAT_ROUNDTRIP_MAX, STAT_PACKETLOSS_MAX,
STAT_MOS_MAX_AT, STAT_JITTER_MAX_AT, STAT_ROUNDTRIP_MAX_AT, STAT_PACKETLOSS_MAX_AT,
STAT_UNKNOWN /* always keep last */
};
enum rtpe_stat_type {
STAT_AVERAGE,
STAT_MAX,
STAT_MAX_AT,
STAT_MIN,
STAT_MIN_AT
};
enum rtpe_stat_dict {
STAT_MOS,
STAT_JITTER,
STAT_ROUNDTRIP,
STAT_PACKETLOSS
};
struct rtpe_stats {
bencode_item_t *dict;
bencode_buffer_t buf;
str json;
};
struct rtpe_ctx {
struct rtpe_stats *stats;
struct rtpe_set *set;
} rtpe_ctx_t;
struct ng_flags_parse {
int via, to, packetize, transport, directional;
bencode_item_t *dict, *flags, *direction, *replace, *rtcp_mux;
str call_id, from_tag, to_tag, received_from;
str viabranch;
};
enum rtpe_set_var {
RTPE_SET_NONE, RTPE_SET_FIXED
};
typedef struct rtpe_set_link {
enum rtpe_set_var type;
union {
int id;
struct rtpe_set *rset;
} v;
} rtpe_set_link_t;
static const char *command_strings[] = {
[OP_OFFER] = "offer",
[OP_ANSWER] = "answer",
[OP_DELETE] = "delete",
[OP_START_RECORDING] = "start recording",
[OP_STOP_RECORDING] = "stop recording",
[OP_QUERY] = "query",
[OP_START_MEDIA]= "play media",
[OP_STOP_MEDIA] = "stop media",
[OP_BLOCK_MEDIA]= "block media",
[OP_UNBLOCK_MEDIA] = "unblock media",
[OP_BLOCK_DTMF]= "block DTMF",
[OP_UNBLOCK_DTMF] = "unblock DTMF",
[OP_START_FORWARD]= "start forwarding",
[OP_STOP_FORWARD] = "stop forwarding",
[OP_PLAY_DTMF] = "play DTMF",
};
static const str stat_maps[] = {
[STAT_MOS_AVERAGE] = str_init("mos-average"),
[STAT_MOS_MIN] = str_init("mos-min"),
[STAT_MOS_MIN_AT] = str_init("mos-min-at"),
[STAT_MOS_MAX] = str_init("mos-max"),
[STAT_MOS_MAX_AT] = str_init("mos-max-at"),
[STAT_JITTER_AVERAGE] = str_init("jitter-average"),
[STAT_JITTER_MIN] = str_init("jitter-min"),
[STAT_JITTER_MIN_AT] = str_init("jitter-min-at"),
[STAT_JITTER_MAX] = str_init("jitter-max"),
[STAT_JITTER_MAX_AT] = str_init("jitter-max-at"),
[STAT_ROUNDTRIP_AVERAGE] = str_init("roundtrip-average"),
[STAT_ROUNDTRIP_MIN] = str_init("roundtrip-min"),
[STAT_ROUNDTRIP_MIN_AT] = str_init("roundtrip-min-at"),
[STAT_ROUNDTRIP_MAX] = str_init("roundtrip-max"),
[STAT_ROUNDTRIP_MAX_AT] = str_init("roundtrip-max-at"),
[STAT_PACKETLOSS_AVERAGE] = str_init("packetloss-average"),
[STAT_PACKETLOSS_MIN] = str_init("packetloss-min"),
[STAT_PACKETLOSS_MIN_AT] = str_init("packetloss-min-at"),
[STAT_PACKETLOSS_MAX] = str_init("packetloss-max"),
[STAT_PACKETLOSS_MAX_AT] = str_init("packetloss-max-at")
};
static char *gencookie();
static int rtpe_test(struct rtpe_node*, int, int);
static int start_recording_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int stop_recording_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_offer_f(struct sip_msg *msg, str *flags, pv_spec_t *spvar,
pv_spec_t *bpvar, str *body);
static int rtpengine_answer_f(struct sip_msg *msg, str *flags, pv_spec_t *spvar,
pv_spec_t *bpvar, str *body);
static int rtpengine_manage_f(struct sip_msg *msg, str *flags, pv_spec_t *spvar,
pv_spec_t *bpvar, str *body);
static int rtpengine_delete_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static void free_rtpe_nodes(struct rtpe_set *list);
static int rtpengine_playmedia_f(struct sip_msg* msg, str *flags,
pv_spec_t *duration, pv_spec_t *spvar);
static int rtpengine_stopmedia_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_blockmedia_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_unblockmedia_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_blockdtmf_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_unblockdtmf_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_start_forward_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_stop_forward_f(struct sip_msg* msg, str *flags, pv_spec_t *spvar);
static int rtpengine_play_dtmf_f(struct sip_msg* msg, str *code, str *flags, pv_spec_t *spvar);
static void rtpengine_notify_process(int rank);
static int rtpengine_api_offer(struct rtp_relay_session *sess, struct rtp_relay_server *server,
str *ip, str *type, str *in_iface, str *out_iface, str *flags, str *extra, str *body);
static int rtpengine_api_answer(struct rtp_relay_session *sess, struct rtp_relay_server *server,
str *ip, str *type, str *in_iface, str *out_iface, str *flags, str *extra, str *body);
static int rtpengine_api_delete(struct rtp_relay_session *sess, struct rtp_relay_server *server,
str *flags, str *extra);
static int parse_flags(struct ng_flags_parse *, struct sip_msg *, enum rtpe_operation *, const char *);
static int rtpengine_offer_answer(struct sip_msg *msg, str *flags, str *node,
pv_spec_t *spvar, pv_spec_t *bpvar, str *body, int op);
static int add_rtpengine_socks(struct rtpe_set * rtpe_list, char * rtpengine);
static int fixup_set_id(void ** param);
static int fixup_free_set_id(void ** param);
static int set_rtpengine_set_f(struct sip_msg * msg, rtpe_set_link_t *set_param);
static struct rtpe_set * select_rtpe_set(int id_set);
static struct rtpe_node *select_rtpe_node(str, struct rtpe_set *);
static char *send_rtpe_command(struct rtpe_node *, bencode_item_t *, int *);
static int get_extra_id(struct sip_msg* msg, str *id_str);
static int update_rtpengines(void);
static int _add_rtpengine_from_database(void);
static int rtpengine_set_store(modparam_t type, void * val);
static int rtpengine_add_rtpengine_set( char * rtp_proxies, int set_id);
static int mod_init(void);
static int mod_preinit(void);
static int child_init(int);
static void mod_destroy(void);
static int mi_child_init(void);
/* Pseudo-Variables */
static int pv_get_rtpstat_f(struct sip_msg *, pv_param_t *, pv_value_t *);
static int pv_get_rtpquery_f(struct sip_msg *, pv_param_t *, pv_value_t *);
/*mi commands*/
static mi_response_t *mi_enable_rtp_proxy(const mi_params_t *params,
struct mi_handler *async_hdl);
static mi_response_t *mi_show_rtpengines(const mi_params_t *params,
struct mi_handler *async_hdl);
static mi_response_t *mi_teardown_call(const mi_params_t *params,
struct mi_handler *async_hdl);
static mi_response_t *mi_reload_rtpengines(const mi_params_t *params,
struct mi_handler *async_hdl);
static int rtpengine_stats_used = 0;
static int rtpengine_disable_tout = 60;
static int rtpengine_retr = 5;
static int rtpengine_tout = 1;
static int rtpengine_timer_interval = 5;
static pid_t mypid;
static int myrand = 0;
static unsigned int myseqn = 0;
static str extra_id_pv_param = {NULL, 0};
static char *setid_avp_param = NULL;
static char ** rtpe_strings=0;
static int rtpe_sets=0; /*used in rtpengine_set_store()*/
static int rtpe_set_count = 0;
static int rtpe_ctx_idx = -1;
struct rtpe_set_head **rtpe_set_list =0;
struct rtpe_set **default_rtpe_set=0;
static str rtpengine_notify_sock;
static str rtpengine_notify_event_name = str_init("E_RTPENGINE_NOTIFICATION");
static event_id_t rtpengine_notify_event = EVI_ERROR;
/* array with the sockets used by rtpengine (per process)*/
static int *rtpe_socks = 0;
static str db_url = {NULL, 0};
static str db_table = str_init("rtpengine");
static str db_rtpe_set_col = str_init("set_id");
static str db_rtpe_sock_col = str_init("socket");
static db_con_t *db_connection = NULL;
static db_func_t db_functions;
static rw_lock_t *rtpe_lock=NULL;
static unsigned int *rtpe_no = 0;
static unsigned int *list_version;
static unsigned int my_version = 0;
static unsigned int rtpe_number = 0;
static int setid_avp_type;
static int_str setid_avp;
/* tm */
static struct tm_binds tmb;
static struct dlg_binds dlgb;
static pv_elem_t *extra_id_pv = NULL;
static cmd_export_t cmds[] = {
{"rtpengine_use_set", (cmd_function)set_rtpengine_set_f, {
{CMD_PARAM_INT, fixup_set_id, fixup_free_set_id}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_start_recording", (cmd_function)start_recording_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_stop_recording", (cmd_function)stop_recording_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_offer", (cmd_function)rtpengine_offer_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_answer", (cmd_function)rtpengine_answer_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_manage", (cmd_function)rtpengine_manage_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_delete", (cmd_function)rtpengine_delete_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0}, {0,0,0}},
ALL_ROUTES},
{"rtpengine_play_media", (cmd_function)rtpengine_playmedia_f, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_stop_media", (cmd_function)rtpengine_stopmedia_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_block_media", (cmd_function)rtpengine_blockmedia_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_unblock_media", (cmd_function)rtpengine_unblockmedia_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_block_dtmf", (cmd_function)rtpengine_blockdtmf_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_unblock_dtmf", (cmd_function)rtpengine_unblockdtmf_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_start_forwarding", (cmd_function)rtpengine_start_forward_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_stop_forwarding", (cmd_function)rtpengine_stop_forward_f, {
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{"rtpengine_play_dtmf", (cmd_function)rtpengine_play_dtmf_f, {
{CMD_PARAM_STR, 0, 0},
{CMD_PARAM_STR | CMD_PARAM_OPT, 0, 0},
{CMD_PARAM_VAR | CMD_PARAM_OPT, 0, 0},
{0,0,0}},
ALL_ROUTES},
{0,0,{{0,0,0}},0}
};
static int pv_rtpengine_stats_used(pv_spec_p sp, int param)
{
rtpengine_stats_used = 1;
return 0;
}
static inline enum rtpe_stat rtpe_get_stat_by_name(const str *name)
{
enum rtpe_stat s;
for (s = 0; s < STAT_UNKNOWN; s++) {
if (str_strcasecmp(&stat_maps[s], name) == 0)
return s;
}
return STAT_UNKNOWN;
}
static inline enum rtpe_stat_type rtpe_get_stat_by_type(enum rtpe_stat s)
{
enum rtpe_stat_type t;
switch (s) {
case STAT_MOS_AVERAGE:
case STAT_JITTER_AVERAGE:
case STAT_ROUNDTRIP_AVERAGE:
case STAT_PACKETLOSS_AVERAGE:
t = STAT_AVERAGE;
break;
case STAT_MOS_MAX:
case STAT_JITTER_MAX:
case STAT_ROUNDTRIP_MAX:
case STAT_PACKETLOSS_MAX:
t = STAT_MAX;
break;
case STAT_MOS_MAX_AT:
case STAT_JITTER_MAX_AT:
case STAT_ROUNDTRIP_MAX_AT:
case STAT_PACKETLOSS_MAX_AT:
t = STAT_MAX_AT;
break;
case STAT_MOS_MIN:
case STAT_JITTER_MIN:
case STAT_ROUNDTRIP_MIN:
case STAT_PACKETLOSS_MIN:
t = STAT_MIN;
break;
case STAT_MOS_MIN_AT:
case STAT_JITTER_MIN_AT:
case STAT_ROUNDTRIP_MIN_AT:
case STAT_PACKETLOSS_MIN_AT:
t = STAT_MIN_AT;
break;
default:
LM_BUG("unknown stat type %d\n", s);
t = TYPE_UNKNOWN;
}
return t;
}
static inline enum rtpe_stat_dict rtpe_get_stat_by_dict(enum rtpe_stat s)
{
enum rtpe_stat_dict d;
switch (s) {
case STAT_MOS_AVERAGE:
case STAT_MOS_MAX:
case STAT_MOS_MAX_AT:
case STAT_MOS_MIN:
case STAT_MOS_MIN_AT:
d = STAT_MOS;
break;
case STAT_JITTER_AVERAGE:
case STAT_JITTER_MAX:
case STAT_JITTER_MAX_AT:
case STAT_JITTER_MIN:
case STAT_JITTER_MIN_AT:
d = STAT_JITTER;
break;
case STAT_ROUNDTRIP_AVERAGE:
case STAT_ROUNDTRIP_MAX:
case STAT_ROUNDTRIP_MAX_AT:
case STAT_ROUNDTRIP_MIN:
case STAT_ROUNDTRIP_MIN_AT:
d = STAT_ROUNDTRIP;
break;
case STAT_PACKETLOSS_AVERAGE:
case STAT_PACKETLOSS_MAX:
case STAT_PACKETLOSS_MAX_AT:
case STAT_PACKETLOSS_MIN:
case STAT_PACKETLOSS_MIN_AT:
d = STAT_PACKETLOSS;
break;
default:
LM_BUG("unknown stat dictionary %d\n", s);
d = TYPE_UNKNOWN;
}
return d;
}
#define PVE_NAME_NONE 0
#define PVE_NAME_INTSTR 1
#define PVE_NAME_PVAR 2
static int pv_parse_rtpstat(pv_spec_p sp, const str *in)
{
enum rtpe_stat s;
pv_elem_t *format;
if (!in || in->s == NULL || in->len == 0 || sp == NULL)
return -1;
LM_DBG("RTP stat name %p with name <%.*s>\n", &sp->pvp.pvn, in->len, in->s);
if (pv_parse_format(in, &format)!=0) {
LM_ERR("failed to parse statistic name format <%.*s> \n",
in->len,in->s);
return -1;
}
if (format->next==NULL && format->spec.type==PVT_NONE) {
s = rtpe_get_stat_by_name(in);
if (s == STAT_UNKNOWN) {
LM_ERR("Unknown RTP statistic %.*s\n", in->len, in->s);
return -1;
}
sp->pvp.pvn.type = PVE_NAME_INTSTR;
sp->pvp.pvn.u.isname.type = 0;
sp->pvp.pvn.u.isname.name.n = s;
} else {
sp->pvp.pvn.type = PVE_NAME_PVAR;
sp->pvp.pvn.u.isname.type = 0;
sp->pvp.pvn.u.isname.name.s.s = (char*)(void*)format;
sp->pvp.pvn.u.isname.name.s.len = 0;
}
return 0;
}
static int pv_rtpengine_index(pv_spec_p sp, const str *in)
{
pv_elem_t *format;
if (!in || in->s == NULL || in->len == 0 || sp == NULL)
return -1;
LM_DBG("index %p with name <%.*s>\n", &sp->pvp.pvi, in->len, in->s);
if (pv_parse_format(in, &format)!=0) {
LM_ERR("failed to parse statistic name format <%.*s> \n",
in->len,in->s);
return -1;
}
if (format->next==NULL && format->spec.type==PVT_NONE) {
sp->pvp.pvi.type = PVE_NAME_INTSTR;
sp->pvp.pvi.u.dval = pkg_malloc(sizeof(str));
if (!sp->pvp.pvi.u.dval) {
LM_ERR("no more pkg for index!\n");
return -1;
}
*(str *)(sp->pvp.pvi.u.dval) = *in;
} else {
sp->pvp.pvi.type = PVE_NAME_PVAR;
sp->pvp.pvi.u.dval = (char*)(void*)format;
}
return 0;
}
static pv_export_t mod_pvs[] = {
{{"rtpstat", (sizeof("rtpstat")-1)}, /* RTP-Statistics */
1000, pv_get_rtpstat_f, 0, pv_parse_rtpstat,
pv_rtpengine_index, pv_rtpengine_stats_used, 0},
{{"rtpquery", (sizeof("rtpquery")-1)},
1000, pv_get_rtpquery_f, 0, 0, 0, pv_rtpengine_stats_used, 0},
{{0, 0}, 0, 0, 0, 0, 0, 0, 0}
};
static param_export_t params[] = {
{"rtpengine_sock", STR_PARAM|USE_FUNC_PARAM,
(void*)rtpengine_set_store },
{"rtpengine_disable_tout", INT_PARAM, &rtpengine_disable_tout },
{"rtpengine_retr", INT_PARAM, &rtpengine_retr },
{"rtpengine_tout", INT_PARAM, &rtpengine_tout },
{"rtpengine_timer_interval", INT_PARAM, &rtpengine_timer_interval},
{"notification_sock", STR_PARAM, &rtpengine_notify_sock.s},
{"extra_id_pv", STR_PARAM, &extra_id_pv_param.s },
{"setid_avp", STR_PARAM, &setid_avp_param },
{"db_url", STR_PARAM, &db_url.s },
{"db_table", STR_PARAM, &db_table.s },
{"socket_column", STR_PARAM, &db_rtpe_sock_col.s },
{"set_column", STR_PARAM, &db_rtpe_set_col.s },
{0, 0, 0}
};
static mi_export_t mi_cmds[] = {
{ MI_ENABLE_RTP_ENGINE, 0, 0, 0, {
{mi_enable_rtp_proxy, {"url", "enable", 0}},
{EMPTY_MI_RECIPE}}
},
{ MI_SHOW_RTP_ENGINES, 0, 0, 0, {
{mi_show_rtpengines, {0}},
{EMPTY_MI_RECIPE}}
},
{ MI_RELOAD_RTP_ENGINES, 0, 0, mi_child_init, {
{mi_reload_rtpengines, {0}},
{EMPTY_MI_RECIPE}}
},
{ "teardown", 0, 0, 0, {
{mi_teardown_call, {"callid", 0}},
{EMPTY_MI_RECIPE}}
},
{EMPTY_MI_EXPORT}
};
static dep_export_t deps = {
{ /* OpenSIPS module dependencies */
{ MOD_TYPE_DEFAULT, "tm", DEP_SILENT },
{ MOD_TYPE_DEFAULT, "dialog", DEP_SILENT },
{ MOD_TYPE_DEFAULT, "rtp_relay", DEP_SILENT|DEP_REVERSE },
{ MOD_TYPE_NULL, NULL, 0 },
},
{ /* modparam dependencies */
{ "db_url", get_deps_sqldb_url },
{ NULL, NULL },
},
};
static proc_export_t procs[] = {
{"RTPEngine notification receiver", 0, 0, rtpengine_notify_process, 1, 0},
{0,0,0,0,0,0}
};
struct module_exports exports = {
"rtpengine",
MOD_TYPE_DEFAULT,/* class of this module */
MODULE_VERSION,
DEFAULT_DLFLAGS, /* dlopen flags */
0, /* load function */
&deps, /* OpenSIPS module dependencies */
cmds,
0,
params,
0, /* exported statistics */
mi_cmds, /* exported MI functions */
mod_pvs, /* exported pseudo-variables */
0, /* exported transformations */
procs, /* extra processes */
mod_preinit,
mod_init,
0, /* reply processing */
mod_destroy, /* destroy function */
child_init,
0 /* reload confirm function */
};
static void rtpe_stats_free(struct rtpe_stats *stats)
{
if (stats->json.s)
cJSON_PurgeString(stats->json.s);
bencode_buffer_free(&stats->buf);
}
static void rtpe_ctx_free(void *param)
{
struct rtpe_ctx *ctx = (struct rtpe_ctx *)param;
if (ctx) {
if (ctx->stats) {
rtpe_stats_free(ctx->stats);
pkg_free(ctx->stats);
}
pkg_free(ctx);
}
}
static inline struct rtpe_ctx *rtpe_ctx_get(void)
{
struct rtpe_ctx *ctx = rtpe_ctx_tryget();
if (!ctx) {
if (!current_processing_ctx) {
LM_ERR("no processing ctx found - cannot use rtpengine context!\n");
return NULL;
}
ctx = pkg_malloc(sizeof(*ctx));
if (!ctx) {
LM_ERR("not enough pkg memory!\n");
return NULL;
}
memset(ctx, 0, sizeof(*ctx));
rtpe_ctx_set(ctx);
}
return ctx;
}
static inline void rtpe_ctx_set_fill(struct rtpe_set *set)
{
struct rtpe_ctx *ctx = rtpe_ctx_get();
if (ctx)
ctx->set = set;
}
static inline struct rtpe_set *rtpe_ctx_set_get(void)
{
struct rtpe_ctx *ctx = rtpe_ctx_tryget();
return ctx ? ctx->set: NULL;
}
static inline int str_eq(const str *p, const char *q) {
int l = strlen(q);
if (p->len != l)
return 0;
if (memcmp(p->s, q, l))
return 0;
return 1;
}
static int rtpengine_set_store(modparam_t type, void * val){
char * p;
int len;
p = (char* )val;
if(p==0 || *p=='\0'){
return 0;
}
if(rtpe_sets==0){
rtpe_strings = (char**)pkg_malloc(sizeof(char*));
if(!rtpe_strings){
LM_ERR("no pkg memory left\n");
return -1;
}
} else {/*realloc to make room for the current set*/
rtpe_strings = (char**)pkg_realloc(rtpe_strings,
(rtpe_sets+1)* sizeof(char*));
if(!rtpe_strings){
LM_ERR("no pkg memory left\n");
return -1;
}
}
/*allocate for the current set of urls*/
len = strlen(p);
rtpe_strings[rtpe_sets] = (char*)pkg_malloc((len+1)*sizeof(char));
if(!rtpe_strings[rtpe_sets]){
LM_ERR("no pkg memory left\n");
return -1;
}
memcpy(rtpe_strings[rtpe_sets], p, len);
rtpe_strings[rtpe_sets][len] = '\0';
rtpe_sets++;
return 0;
}
static int add_rtpengine_socks(struct rtpe_set * rtpe_list,
char * rtpengine){
/* Make rtp proxies list. */
char *p, *p1, *p2, *plim;
struct rtpe_node *pnode;
int weight;
p = rtpengine;
plim = p + strlen(p);
for(;;) {
weight = 1;
while (*p && isspace((int)*p))
++p;
if (p >= plim)
break;
p1 = p;
while (*p && !isspace((int)*p))
++p;
if (p <= p1)
break; /* may happen??? */
/* Have weight specified? If yes, scan it */
p2 = memchr(p1, '=', p - p1);
if (p2 != NULL) {
weight = strtoul(p2 + 1, NULL, 10);
} else {
p2 = p;
}
pnode = shm_malloc(sizeof(struct rtpe_node));
if (pnode == NULL) {
LM_ERR("no shm memory left\n");
return -1;
}
memset(pnode, 0, sizeof(*pnode));
pnode->idx = (*rtpe_no)++;
pnode->rn_recheck_ticks = 0;
pnode->rn_weight = weight;
pnode->rn_umode = 0;
pnode->rn_disabled = 0;
pnode->rn_url.s = shm_malloc(p2 - p1 + 1);
if (pnode->rn_url.s == NULL) {
shm_free(pnode);
LM_ERR("no shm memory left\n");
return -1;
}
memmove(pnode->rn_url.s, p1, p2 - p1);
pnode->rn_url.s[p2 - p1] = 0;
pnode->rn_url.len = p2-p1;
LM_DBG("url is %s, len is %i\n", pnode->rn_url.s, pnode->rn_url.len);
/* Leave only address in rn_address */
pnode->rn_address = pnode->rn_url.s;
if (strncasecmp(pnode->rn_address, "udp:", 4) == 0) {
pnode->rn_umode = 1;
pnode->rn_address += 4;
} else if (strncasecmp(pnode->rn_address, "udp6:", 5) == 0) {
pnode->rn_umode = 6;
pnode->rn_address += 5;
} else if (strncasecmp(pnode->rn_address, "unix:", 5) == 0) {
pnode->rn_umode = 0;
pnode->rn_address += 5;
}
if (rtpe_list->rn_first == NULL) {
rtpe_list->rn_first = pnode;
} else {
rtpe_list->rn_last->rn_next = pnode;
}
rtpe_list->rn_last = pnode;
rtpe_list->rtpe_node_count++;
}
return 0;
}
/* 0-succes
* -1 - erorr
* */
static int rtpengine_add_rtpengine_set( char * rtp_proxies, int set_id)
{
char *p,*p2;
struct rtpe_set * rtpe_list;
unsigned int my_current_id;
str id_set;
int new_list;
/* empty definition? */
p= rtp_proxies;
if(!p || *p=='\0'){
return 0;
}
for(;*p && isspace(*p);p++);
if(*p=='\0'){
return 0;
}
if (set_id < 0) {
rtp_proxies = strstr(p, "==");
if(rtp_proxies){
if(*(rtp_proxies +2)=='\0'){
LM_ERR("script error -invalid rtp proxy list!\n");
return -1;
}
*rtp_proxies = '\0';
p2 = rtp_proxies-1;
for(;isspace(*p2); *p2 = '\0',p2--);
id_set.s = p; id_set.len = p2 - p+1;
if(id_set.len <= 0 ||str2int(&id_set, &my_current_id)<0 ){
LM_ERR("script error -invalid set_id value!\n");
return -1;
}
rtp_proxies+=2;
}else{
rtp_proxies = p;
my_current_id = DEFAULT_RTPE_SET_ID;
}
} else {
rtp_proxies = p;
my_current_id = set_id;
}
for(;*rtp_proxies && isspace(*rtp_proxies);rtp_proxies++);
if(!(*rtp_proxies)){
LM_ERR("script error -empty rtp_proxy list\n");
return -1;;
}
/*search for the current_id*/
rtpe_list = (*rtpe_set_list) ? (*rtpe_set_list)->rset_first : 0;
while( rtpe_list != 0 && rtpe_list->id_set!=my_current_id)
rtpe_list = rtpe_list->rset_next;
if(rtpe_list==NULL){ /*if a new id_set : add a new set of rtpe*/
rtpe_list = shm_malloc(sizeof(struct rtpe_set));
if(!rtpe_list){
LM_ERR("no shm memory left\n");
return -1;
}
memset(rtpe_list, 0, sizeof(struct rtpe_set));
rtpe_list->id_set = my_current_id;
new_list = 1;
} else {
new_list = 0;
}
if(add_rtpengine_socks(rtpe_list, rtp_proxies)!= 0){
/*if this list will not be inserted, clean it up*/
goto error;
}
if (new_list) {
if(!(*rtpe_set_list)){/*initialize the list of set*/
*rtpe_set_list = shm_malloc(sizeof(struct rtpe_set_head));
if(!(*rtpe_set_list)){
LM_ERR("no shm memory left\n");
return -1;
}
memset(*rtpe_set_list, 0, sizeof(struct rtpe_set_head));
}
/*update the list of set info*/
if(!(*rtpe_set_list)->rset_first){
(*rtpe_set_list)->rset_first = rtpe_list;
}else{
(*rtpe_set_list)->rset_last->rset_next = rtpe_list;
}
(*rtpe_set_list)->rset_last = rtpe_list;
rtpe_set_count++;
}
return 0;
error:
return -1;
}