forked from DVMProject/dvmfne
-
Notifications
You must be signed in to change notification settings - Fork 0
/
fne_router.py
1141 lines (948 loc) · 68.2 KB
/
fne_router.py
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
#!/usr/bin/env python
#
# Digital Voice Modem - Fixed Network Equipment
# GPLv2 Open Source. Use is subject to license terms.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# @package DVM / FNE
#
###############################################################################
# Copyright (C) 2016 Cortney T. Buffington, N0MJS <[email protected]>
# Copyright (C) 2017-2021 Bryan Biedenkapp <[email protected]>
#
# 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 3 of the License, or
# (at your option) any later version.
#
# This program 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
###############################################################################
from __future__ import print_function
import sys, traceback
import cPickle as pickle
from binascii import b2a_hex as ahex
from bitarray import bitarray
from time import time
from importlib import import_module
from twisted.python import log
from twisted.internet.protocol import Factory, Protocol
from twisted.protocols.basic import NetstringReceiver
from twisted.internet import reactor, task
from fne.fne_core import hex_str_3, int_id, coreFNE, systems, fne_shutdown_handler, REPORT_OPCODES, reportFactory, config_reports, setup_activity_log
from fne import fne_config, fne_log, fne_const
from dmr_utils import lc, bptc, const
# ---------------------------------------------------------------------------
# Module Routines
# ---------------------------------------------------------------------------
def get_valid(_id, _dict):
if type(_id) == str:
_id = int_id(_id)
if _id in _dict:
return True
else:
return False
return False
def get_valid_ignore(_peer_id, _id, _dict):
if type(_peer_id) == str:
_peer_id = int_id(_peer_id)
if type(_id) == str:
_id = int_id(_id)
if _id in _dict:
if _peer_id in _dict[_id]:
return True
else:
if len(_dict[_id]) > 0:
if _dict[_id][0] == 0:
return True
return False
else:
return False
return False
# Import bridging rules
# Note: A stanza *must* exist for any MASTER or PEER configured in the main
# configuration file and listed as "active". It can be empty,
# but it has to exist.
def make_rules(_fne_routing_rules):
global RULES, rule_file
try:
if _fne_routing_rules not in sys.modules:
rule_file = import_module(_fne_routing_rules)
#logger.info('Routing rules file found and rules imported')
else:
rule_file = reload(rule_file)
#logger.info('Routing rules file found and rules reloaded')
except:
logger.error('Routing rules file not found or invalid')
return RULES
# Convert integer GROUP ID numbers from the config into hex strings
# we need to send in the actual data packets.
for _system in rule_file.RULES:
if _system not in config['Systems']:
logger.error('Routing rules found for system %s, not configured main configuration', _system)
continue
config['Systems'][_system]['ACTIVE_TG_IDS'] = {}
config['Systems'][_system]['DEACTIVE_TG_IDS'] = {}
config['Systems'][_system]['TG_IGNORE_IDS'] = {}
config['Systems'][_system]['TG_ALLOW_AFF'] = []
for _rule in rule_file.RULES[_system]['GROUP_VOICE']:
_rule['SRC_GROUP'] = hex_str_3(_rule['SRC_GROUP'])
_rule['DST_GROUP'] = hex_str_3(_rule['DST_GROUP'])
_rule['SRC_TS'] = _rule['SRC_TS']
_rule['DST_TS'] = _rule['DST_TS']
if rule_file.RULES[_system]['SEND_TGID'] == True:
if _rule['ACTIVE'] == True:
config['Systems'][_system]['ACTIVE_TG_IDS'][int_id(_rule['SRC_GROUP'])] = (_rule['NAME'], _rule['SRC_TS'])
else:
config['Systems'][_system]['DEACTIVE_TG_IDS'][int_id(_rule['SRC_GROUP'])] = (_rule['NAME'], _rule['SRC_TS'])
config['Systems'][_system]['TG_IGNORE_IDS'][int_id(_rule['SRC_GROUP'])] = [int(x) for x in _rule['IGNORED']]
if _rule['AFFILIATED'] == True:
config['Systems'][_system]['TG_ALLOW_AFF'].append(int_id(_rule['SRC_GROUP']))
for i, e in enumerate(_rule['ON']):
_rule['ON'][i] = hex_str_3(_rule['ON'][i])
for i, e in enumerate(_rule['OFF']):
_rule['OFF'][i] = hex_str_3(_rule['OFF'][i])
_rule['TIMEOUT'] = _rule['TIMEOUT'] * 60
_rule['TIMER'] = time() + _rule['TIMEOUT']
# if we're reloading rules lets restore states
if RULES:
for _loaded_rule in RULES[_system]['GROUP_VOICE']:
if _loaded_rule['NAME'] == _rule['NAME']:
_rule['ROUTABLE'] = _loaded_rule['ROUTABLE']
_rule['TO_TYPE'] = _loaded_rule['TO_TYPE']
_rule['TIMER'] = _loaded_rule['TIMER']
break
logger.info('Rule (%s) NAME: %s SRC_TGID: %s DST_TGID: %s SRC_TS: %s DST_TS: %s ACTIVE: %s ROUTABLE: %s TO_TYPE: %s AFFILIATED: %s IGNORED: %s', _system, _rule['NAME'], int_id(_rule['SRC_GROUP']), int_id(_rule['DST_GROUP']), _rule['SRC_TS'], _rule['DST_TS'], _rule['ACTIVE'], _rule['ROUTABLE'], _rule['TO_TYPE'], _rule['AFFILIATED'], _rule['IGNORED'])
for _system in config['Systems']:
if _system not in rule_file.RULES:
logger.error('Routing rules not found for system %s', _system)
return rule_file.RULES
# Run this every minute for rule timer updates
def rule_timer_loop():
_now = time()
for _system in RULES:
for _rule in RULES[_system]['GROUP_VOICE']:
if _rule['ACTIVE'] == False:
continue
if _rule['TO_TYPE'] == 'ON':
if _rule['ROUTABLE'] == True:
if _rule['TIMER'] < _now:
_rule['ROUTABLE'] = False
logger.info('(%s) TG Routing timeout DEACTIVATE routing name %s, Target %s, TS %s, TGID %s', _system, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], int_id(_rule['DST_GROUP']))
else:
timeout_in = _rule['TIMER'] - _now
logger.info('(%s) TG Routing ACTIVE with ON timer running Timeout eligible in %ds, Rule name %s, Target %s, TS %s, TGID %s', _system, timeout_in, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], int_id(_rule['DST_GROUP']))
elif _rule['TO_TYPE'] == 'OFF':
if _rule['ROUTABLE'] == False:
if _rule['TIMER'] < _now:
_rule['ROUTABLE'] = True
logger.info('(%s) TG Routing timeout ACTIVATE Rule name %s, Target %s, TS %s, TGID %s', _system, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], int_id(_rule['DST_GROUP']))
else:
timeout_in = _rule['TIMER'] - _now
logger.info('(%s) TG Routing DEACTIVATE with OFF timer running Timeout eligible in %ds, Rule name %s, Target %s, TS %s, TGID %s', _system, timeout_in, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], int_id(_rule['DST_GROUP']))
else:
logger.debug('Routable rule timer loop made no rule changes')
# ---------------------------------------------------------------------------
# Class Declaration
# This implements the router network FNE logic.
# ---------------------------------------------------------------------------
class routerFNE(coreFNE):
def __init__(self, _name, _config, _logger, _act_log_file, _report):
coreFNE.__init__(self, _name, _config, _logger, _act_log_file, _report)
# Status information for the system, TS1 & TS2
# 1 & 2 are "timeslot"
# In TX_EMB_LC, 2-5 are burst B-E
self.STATUS = {
1: {
'RX_START': time(),
'RX_PEER_ID': '\x00',
'RX_SEQ': '\x00',
'RX_RFS': '\x00',
'TX_RFS': '\x00',
'RX_STREAM_ID': '\x00',
'TX_STREAM_ID': '\x00',
'RX_TGID': '\x00\x00\x00',
'TX_TGID': '\x00\x00\x00',
'TX_PI_TGID': '\x00\x00\x00',
'RX_TIME': time(),
'TX_TIME': time(),
'RX_TYPE': fne_const.DT_TERMINATOR_WITH_LC,
'RX_LC': '\x00',
'RX_PI_LC': '\x00',
'TX_H_LC': '\x00',
'TX_P_LC': '\x00',
'TX_T_LC': '\x00',
'TX_EMB_LC': {
1: '\x00',
2: '\x00',
3: '\x00',
4: '\x00',
},
'P25_RX_CT': 'group'
},
2: {
'RX_START': time(),
'RX_PEER_ID': '\x00',
'RX_SEQ': '\x00',
'RX_RFS': '\x00',
'TX_RFS': '\x00',
'RX_STREAM_ID': '\x00',
'TX_STREAM_ID': '\x00',
'RX_TGID': '\x00\x00\x00',
'TX_TGID': '\x00\x00\x00',
'TX_PI_TGID': '\x00\x00\x00',
'RX_TIME': time(),
'TX_TIME': time(),
'RX_TYPE': fne_const.DT_TERMINATOR_WITH_LC,
'RX_LC': '\x00',
'RX_PI_LC': '\x00',
'TX_H_LC': '\x00',
'TX_P_LC': '\x00',
'TX_T_LC': '\x00',
'TX_EMB_LC': {
1: '\x00',
2: '\x00',
3: '\x00',
4: '\x00',
},
'P25_RX_CT': 'group'
}
}
rid_tid_update_timer = task.LoopingCall(self.rid_tid_update_loop)
rid_tid_update_timer.start(240)
def dmrd_validate(self, _peer_id, _rf_src, _dst_id, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id):
pkt_time = time()
if get_valid(_rf_src, black_rids) == True:
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) DMRD: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Blacklisted RID)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,BLACKLISTED RID,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return False
# Always validate a terminator if the source is valid
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC):
return True
if _call_type == 'group':
if (RULES[self._system]['SEND_TGID'] == True) and (get_valid(_dst_id, config['Systems'][self._system]['ACTIVE_TG_IDS']) == False):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) DMRD: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Illegal TGID)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL TGID,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return False
return True
def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
pkt_time = time()
dmrpkt = _data[20:53]
_bits = int_id(_data[15])
if ((_frame_type == fne_const.FT_DATA_SYNC) and ((_dtype_vseq == fne_const.DT_DATA_HEADER) or (_dtype_vseq == fne_const.DT_RATE_12_DATA) or
(_dtype_vseq == fne_const.DT_RATE_34_DATA) or (_dtype_vseq == fne_const.DT_RATE_1_DATA))):
self._logger.info('(%s) DMRD: Traffic *DATA * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PDU,DATA,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return
if _call_type == 'group':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) DMRD: Traffic *CALL COLLISION * PEER %s SRC_ID %s TGID %s TS %s [STREAM ID %s] (Collided with existing call)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,CALL COLLISION,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) DMRD: Traffic *CALL START * PEER %s SRC_ID %s TGID %s TS %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, int_id(_stream_id),)
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,START,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
# If we can, use the LC from the voice header as to keep all
# options intact
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
lcHeader = lc.decode_lc_header(dmrpkt)
self.STATUS[_slot]['RX_LC'] = lcHeader['LC'][:9]
# If we don't have a voice header then don't wait to decode it
# from the Embedded LC
# just make a new one from the HBP header. This is good
# enough, and it saves lots of time
else:
self.STATUS[_slot]['RX_LC'] = const.LC_OPT + _dst_id + _rf_src
self.STATUS[_slot]['RX_PI_LC'] = const.LC_PI_OPT + '\x00\x00\x00' + '\x00\x00'
self._logger.debug('(%s) TS %s [STREAM ID %s] RX_LC %s', self._system, _slot, int_id(_stream_id), ahex(self.STATUS[_slot]['RX_LC']))
# If we can, use the PI LC from the PI voice header as to keep all
# options intact
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_PI_HEADER:
lcHeader = lc.decode_lc_header(dmrpkt)
_alg_id = lcHeader['LC'][0]
_key_id = lcHeader['LC'][2]
self._logger.info('(%s) DMRD: Traffic *CALL PI PARAMS * PEER %s DST_ID %s TS %s ALGID %s KID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_dst_id), _slot, int_id(_alg_id), int_id(_key_id), int_id(_stream_id))
self.STATUS[_slot]['RX_PI_LC'] = lcHeader['LC'][:10]
self._logger.debug('(%s) TS %s [STREAM ID %s] RX_PI_LC %s', self._system, _slot, int_id(_stream_id), ahex(self.STATUS[_slot]['RX_PI_LC']))
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# skip if the target doesn't exist
if not (_target in systems):
continue
_target_status = systems[_target].STATUS
if (rule['SRC_GROUP'] == _dst_id and rule['SRC_TS'] == _slot and rule['ACTIVE'] == True and rule['ROUTABLE'] == True):
# BEGIN CONTENTION HANDLING
#
# The rules for each of the 4 "ifs" below are listed here
# for readability. The Frame To Send is:
# From a different group than last RX from this system,
# but it has been less than Group Hangtime
# From a different group than last TX to this system,
# but it has been less than Group Hangtime
# From the same group as the last RX from this system,
# but from a different subscriber, and it has been less
# than stream timeout
# From the same group as the last TX to this system,
# but from a different subscriber, and it has been less
# than stream timeout
# The "continue" at the end of each means the next
# iteration of the for loop that tests for matching rules
#
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, target active or in group hangtime: PRID %s TS %s TGID %s', self._system,
int_id(rule['DST_GROUP']), _target, rule['DST_TS'], int_id(_target_status[rule['DST_TS']]['RX_TGID']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP'])))
continue
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['TX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, target in group hangtime: PRID %s TS %s TGID %s', self._system,
int_id(rule['DST_GROUP']), _target, rule['DST_TS'], int_id(_target_status[rule['DST_TS']]['TX_TGID']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP'])))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < fne_const.STREAM_TO):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, matching call already active on target: PRID %s TS %s TGID %s', self._system,
int_id(rule['DST_GROUP']), _target, rule['DST_TS'], int_id(_target_status[rule['DST_TS']]['RX_TGID']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP'])))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['TX_TGID']) and (_rf_src != _target_status[rule['DST_TS']]['TX_RFS']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < fne_const.STREAM_TO):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed for SUB %s, call route in progress on target: PRID %s TS %s TGID %s SUB %s', self._system,
int_id(_rf_src), _target, rule['DST_TS'], int_id(_target_status[rule['DST_TS']]['TX_TGID']), _target_status[rule['DST_TS']]['TX_RFS'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP'])))
continue
# Set values for the contention handler to test next time
# there is a frame to forward
_target_status[rule['DST_TS']]['TX_TIME'] = pkt_time
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) or (_target_status[rule['DST_TS']]['TX_RFS'] != _rf_src) or (_target_status[rule['DST_TS']]['TX_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_TGID'] = rule['DST_GROUP']
_target_status[rule['DST_TS']]['TX_PI_TGID'] = '\x00\x00\x00'
_target_status[rule['DST_TS']]['TX_STREAM_ID'] = _stream_id
_target_status[rule['DST_TS']]['TX_RFS'] = _rf_src
# Generate LCs (full and EMB) for the TX stream
dst_lc = self.STATUS[_slot]['RX_LC'][0:3] + rule['DST_GROUP'] + _rf_src
_target_status[rule['DST_TS']]['TX_H_LC'] = bptc.encode_header_lc(dst_lc)
_target_status[rule['DST_TS']]['TX_T_LC'] = bptc.encode_terminator_lc(dst_lc)
_target_status[rule['DST_TS']]['TX_EMB_LC'] = bptc.encode_emblc(dst_lc)
dst_pi_lc = self.STATUS[_slot]['RX_PI_LC'][0:7] + rule['DST_GROUP'] + '\x00\x00'
_target_status[rule['DST_TS']]['TX_P_LC'] = bptc.encode_header_pi(dst_pi_lc)
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_H_LC %s', self._system, _slot, int_id(_stream_id), ahex(dst_lc))
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_P_LC %s', self._system, _slot, int_id(_stream_id), ahex(dst_pi_lc))
self._logger.debug('(%s) DMR Packet DST TGID %s does not match SRC TGID %s - Generating FULL and EMB LCs',
self._system, int_id(rule['DST_GROUP']), int_id(_dst_id))
self._logger.info('(%s) DMRD: Call routed to SYSTEM %s TS %s TGID %s',
self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,TO,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP'])))
_pi_dst_id = self.STATUS[_slot]['RX_PI_LC'][7:10]
if (int_id(_pi_dst_id) != 0) and (_target_status[rule['DST_TS']]['TX_PI_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_PI_TGID'] = rule['DST_GROUP']
# Generate LCs (full and EMB) for the TX stream
dst_pi_lc = self.STATUS[_slot]['RX_PI_LC'][0:7] + rule['DST_GROUP'] + '\x00\x00'
_target_status[rule['DST_TS']]['TX_P_LC'] = bptc.encode_header_pi(dst_pi_lc)
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_P_LC %s', self._system, _slot, int_id(_stream_id), ahex(dst_pi_lc))
self._logger.info('(%s) DMRD: Call PI parameters routed to SYSTEM %s TS %s TGID %s',
self._system, _target, rule['DST_TS'], int_id(rule['DST_GROUP']))
# Handle any necessary re-writes for the destination
if rule['SRC_TS'] != rule['DST_TS']:
_tmp_bits = _bits ^ 1 << 7
else:
_tmp_bits = _bits
# Assemble transmit HBP packet header
try:
_tgt_peer_id = self._CONFIG['Systems'][_target]['PeerId']
except KeyError:
_tgt_peer_id = self.STATUS[_slot]['RX_PEER_ID']
_tmp_data = _data[:8] + rule['DST_GROUP'] + _tgt_peer_id + chr(_tmp_bits) + _data[16:20]
# MUST TEST FOR NEW STREAM AND IF SO, RE-WRITE THE LC FOR THE TARGET
# MUST RE-WRITE DESTINATION TGID IF DIFFERENT
# if _dst_id != rule['DST_GROUP']:
dmrbits = bitarray(endian='big')
dmrbits.frombytes(dmrpkt)
# Create a voice header packet (FULL LC)
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
dmrbits = _target_status[rule['DST_TS']]['TX_H_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_H_LC'][98:197]
# Create a voice PI header packet (FULL LC)
elif _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_PI_HEADER:
dmrbits = _target_status[rule['DST_TS']]['TX_P_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_P_LC'][98:197]
# Create a voice terminator packet (FULL LC)
elif _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC:
dmrbits = _target_status[rule['DST_TS']]['TX_T_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_T_LC'][98:197]
# Create a Burst B-E packet (Embedded LC)
elif _dtype_vseq in [1,2,3,4]:
dmrbits = dmrbits[0:116] + _target_status[rule['DST_TS']]['TX_EMB_LC'][_dtype_vseq] + dmrbits[148:264]
dmrpkt = dmrbits.tobytes()
_tmp_data = _tmp_data + dmrpkt + _data[53:55]
# Transmit the packet to the destination system
systems[_target].send_system(_tmp_data)
self._logger.debug('(%s) DMR Packet routed by rule %s to %s SYSTEM %s',
self._system, rule['NAME'], self._CONFIG['Systems'][_target]['Mode'], _target)
# Final actions - Is this a voice terminator?
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
self._logger.info('(%s) DMRD: Traffic *CALL END * PEER %s SRC_ID %s TGID %s TS %s DUR %s [STREAM ID: %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, call_duration, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,END,DMR,{},{},{},{},{},{},{:.2f}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id), call_duration))
#
# Begin in-band signalling for call end. This has nothign to
# do with routing traffic directly.
#
# Iterate the rules dictionary
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# TGID matches a rule source, reset its timer
if _slot == rule['SRC_TS'] and _dst_id == rule['SRC_GROUP'] and ((rule['TO_TYPE'] == 'ON' and (rule['ROUTABLE'] == True)) or (rule['TO_TYPE'] == 'OFF' and rule['ROUTABLE'] == False)):
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) DMRD: Source group transmission match for rule %s. Reset timeout to %s', self._system, rule['NAME'], rule['TIMER'])
# Scan for reciprocal rules and reset their timers as
# well.
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) DMRD: Reciprocal group transmission match for rule %s on IPSC %s. Reset timeout to %s', self._system, target_rule['NAME'], _target, rule['TIMER'])
# TGID matches an ACTIVATION trigger
if _dst_id in rule['ON']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = True
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) DMRD: Primary routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = True
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) DMRD: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
# TGID matches an DE-ACTIVATION trigger
if _dst_id in rule['OFF']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = False
self._logger.info('(%s) DMRD: Routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
_target = rule['DST_NET']
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = False
self._logger.info('(%s) DMRD: DMR Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
#
# END IN-BAND SIGNALLING
#
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
elif _call_type == 'unit':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) DMRD: Traffic *CALL COLLISION * PEER %s SRC_ID %s DST_ID %s TS %s [STREAM ID %s] (Collided with existing call)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,CALL COLLISION,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) DMRD: Traffic *PRV CALL START * PEER %s SRC_ID %s DST_ID %s TS %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,START,DMR,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
# Final actions - Is this a voice terminator?
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
self._logger.info('(%s) DMRD: Traffic *PRV CALL END * PEER %s SRC_ID %s DST_ID %s TS %s DUR %s [STREAM ID: %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _slot, call_duration, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,END,DMR,{},{},{},{},{},{},{:.2f}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id), call_duration))
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
def p25d_preprocess(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id, _data):
pkt_time = time()
p25pkt = _data[24:178]
_lcf = int_id(_data[4])
_slot = 1 # fake the slot data, P25 doesn't have this
# Log but ignore TSDU or PDU packets here
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
if (_duid == fne_const.P25_DUID_TSDU):
if (_lcf == fne_const.P25_TSBK_IOSP_GRP_AFF):
self._logger.info('(%s) P25D: Traffic *TSBK GRP AFF * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
self.update_grp_aff(_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,GRP AFF,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
elif (_lcf == fne_const.P25_TSBK_OSP_U_DEREG_ACK):
self._logger.info('(%s) P25D: Traffic *TSBK U DEREG ACK* PEER %s SRC_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_dst_id), int_id(_stream_id))
self.remove_grp_aff(_peer_id, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,U DEREG ACK,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
elif (_lcf == fne_const.P25_TSBK_OSP_ADJ_STS_BCAST):
self._logger.info('(%s) P25D: Traffic *TSBK ADJ STS BCS* PEER %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,ADJ STS BCS,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
elif (_lcf == fne_const.P25_LCF_TSBK_CALL_ALERT):
self._logger.info('(%s) P25D: Traffic *TSBK CALL ALERT * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,CALL ALERT,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
elif (_lcf == fne_const.P25_LCF_TSBK_ACK_RSP_FNE):
self._logger.info('(%s) P25D: Traffic *TSBK ACK RSP * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,ACK RSP,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
elif (_duid == fne_const.P25_DUID_PDU):
self._logger.info('(%s) P25D: Traffic *DATA * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PDU,DATA,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
return
def p25d_validate(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id):
pkt_time = time()
_slot = 1
if get_valid(_rf_src, black_rids) == True:
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Blacklisted RID)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _duid, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,BLACKLISTED RID,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
return False
# Always validate a TSDU or PDU if the source is valid
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
return True
# Always validate a terminator if the source is valid
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)):
return True
if _call_type == 'group':
if (RULES[self._system]['SEND_TGID'] == True) and (get_valid(_dst_id, config['Systems'][self._system]['ACTIVE_TG_IDS']) == False):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self.STATUS[_slot]['P25_RX_CT'] = 'group'
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Illegal TGID)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _duid, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL TGID,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
return False
elif _call_type == 'unit':
if ((get_valid(_rf_src, white_rids) == False and get_valid(_dst_id, white_rids) == False) or
(get_valid(_rf_src, white_rids) == False or get_valid(_dst_id, white_rids) == False)):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self.STATUS[_slot]['P25_RX_CT'] = 'unit'
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Illegal RID)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), _duid, int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL RID,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), 1, int_id(_dst_id)))
return False
return True
def p25d_received(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id, _data):
pkt_time = time()
p25pkt = _data[24:178]
_lcf = int_id(_data[4])
_slot = 1 # fake the slot data, P25 doesn't have this
# Ignore TSDU or PDU packets here
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
return
# Override call type if necessary
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
if self.STATUS[_slot]['P25_RX_CT'] != _call_type:
_call_type = self.STATUS[_slot]['P25_RX_CT']
if _call_type == 'group':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) and ((_duid != fne_const.P25_DUID_TDU) and (_duid != fne_const.P25_DUID_TDULC)):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) P25D: Traffic *CALL COLLISION * PEER %s SRC_ID %s TGID %s [STREAM ID %s] (Collided with existing call)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,CALL COLLISION,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) P25D: Traffic *CALL START * PEER %s SRC_ID %s TGID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,START,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# skip if the target doesn't exist
if not (_target in systems):
continue
_target_status = systems[_target].STATUS
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)):
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
if (rule['SRC_GROUP'] == _dst_id and rule['ACTIVE'] == True and rule['ROUTABLE'] == True):
# BEGIN CONTENTION HANDLING
#
# The rules for each of the 4 "ifs" below are listed here
# for readability. The Frame To Send is:
# From a different group than last RX from this system,
# but it has been less than Group Hangtime
# From a different group than last TX to this system,
# but it has been less than Group Hangtime
# From the same group as the last RX from this system,
# but from a different subscriber, and it has been less
# than stream timeout
# From the same group as the last TX to this system,
# but from a different subscriber, and it has been less
# than stream timeout
# The "continue" at the end of each means the next
# iteration of the for loop that tests for matching rules
#
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
self._logger.info('(%s) P25D: Call not routed to TGID %s, target active or in group hangtime: PRID %s TGID %s', self._system,
int_id(rule['DST_GROUP']), _target, int_id(_target_status[rule['DST_TS']]['RX_TGID']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, int_id(rule['DST_GROUP'])))
continue
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['TX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
self._logger.info('(%s) P25D: Call not routed to TGID %s, target in group hangtime: PRID %s TGID %s', self._system,
int_id(rule['DST_GROUP']), _target, int_id(_target_status[rule['DST_TS']]['TX_TGID']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, int_id(rule['DST_GROUP'])))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['TX_TGID']) and (_rf_src != _target_status[rule['DST_TS']]['TX_RFS']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < fne_const.STREAM_TO):
self._logger.info('(%s) P25D: Call not routed for SRC_ID %s, call route in progress on target: PRID %s TGID %s SRC_ID %s', self._system,
int_id(_rf_src), _target, int_id(_target_status[rule['DST_TS']]['TX_TGID']), _target_status[rule['DST_TS']]['TX_RFS'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, int_id(rule['DST_GROUP'])))
continue
# Set values for the contention handler to test next time
# there is a frame to forward
_target_status[rule['DST_TS']]['TX_TIME'] = pkt_time
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) or (_target_status[rule['DST_TS']]['TX_RFS'] != _rf_src) or (_target_status[rule['DST_TS']]['TX_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_TGID'] = rule['DST_GROUP']
_target_status[rule['DST_TS']]['TX_STREAM_ID'] = _stream_id
_target_status[rule['DST_TS']]['TX_RFS'] = _rf_src
self._logger.debug('(%s) P25D: Call routed to SYSTEM %s TGID %s', self._system, _target, int_id(rule['DST_GROUP']))
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,TO,P25,{},{},{},{}'.format(self._system, _target, 1, int_id(rule['DST_GROUP'])))
# Assemble transmit HBP packet header
try:
_tgt_peer_id = self._CONFIG['Systems'][_target]['PeerId']
except KeyError:
_tgt_peer_id = self.STATUS[_slot]['RX_PEER_ID']
_tmp_data = _data[:8] + rule['DST_GROUP'] + _tgt_peer_id + _data[15:24]
_tmp_data = _tmp_data + p25pkt
# Transmit the packet to the destination system
systems[_target].send_system(_tmp_data)
self._logger.debug('(%s) P25 Packet routed by rule %s to %s SYSTEM %s', self._system, rule['NAME'], self._CONFIG['Systems'][_target]['Mode'], _target)
# Final actions - Is this a voice terminator?
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
self._logger.info('(%s) P25D: Traffic *CALL END * PEER %s SRC_ID %s TGID %s DUR %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), call_duration, int_id(_stream_id))
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,END,P25,{},{},{},{},{},{},{:.2f}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id), call_duration))
#
# Begin in-band signalling for call end. This has nothign to
# do with routing traffic directly.
#
# Iterate the rules dictionary
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# TGID matches a rule source, reset its timer
if _dst_id == rule['SRC_GROUP'] and ((rule['TO_TYPE'] == 'ON' and (rule['ROUTABLE'] == True)) or (rule['TO_TYPE'] == 'OFF' and rule['ROUTABLE'] == False)):
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) P25D: Source group transmission match for rule %s. Reset timeout to %s', self._system, rule['NAME'], rule['TIMER'])
# Scan for reciprocal rules and reset their timers as
# well.
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) P25D: Reciprocal group transmission match for rule %s on IPSC %s. Reset timeout to %s', self._system, target_rule['NAME'], _target, rule['TIMER'])
# TGID matches an ACTIVATION trigger
if _dst_id in rule['ON']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = True
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) P25D: Primary routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = True
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) P25D: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
# TGID matches an DE-ACTIVATION trigger
if _dst_id in rule['OFF']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = False
self._logger.info('(%s) P25D: Routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
_target = rule['DST_NET']
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = False
self._logger.info('(%s) P25D: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
#
# END IN-BAND SIGNALLING
#
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
elif _call_type == 'unit':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) and ((_duid != fne_const.P25_DUID_TDU) and (_duid != fne_const.P25_DUID_TDULC)):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) P25D: Traffic *CALL COLLISION * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Collided with existing call)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,CALL COLLISION,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) P25D: Traffic *PRV CALL START * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
self.STATUS[_slot]['P25_RX_CT'] = 'unit'
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,START,P25,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
# Final actions - Is this a voice terminator?
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
self._logger.info('(%s) P25D: Traffic *PRV CALL END * PEER %s SRC_ID %s DST_ID %s DUR %s [STREAM ID %s]', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), call_duration, int_id(_stream_id))
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,END,P25,{},{},{},{},{},{},{:.2f}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id), call_duration))
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
def peer_ignored(self, _peer_id, _rf_src, _dst_id, _call_type, _slot, _dtype_vseq, _stream_id, _is_source):
# Unit to unit call is always passed...
if _call_type == 'unit':
return False
if get_valid_ignore(_peer_id, _dst_id, config['Systems'][self._system]['TG_IGNORE_IDS']) == True:
if (int_id(_dst_id) in config['Systems'][self._system]['TG_ALLOW_AFF']):
if (int_id(_peer_id) in GRP_AFF.keys()):
if (int_id(_dst_id) in GRP_AFF[int_id(_peer_id)].keys()):
if (len(GRP_AFF[int_id(_peer_id)][int_id(_dst_id)]) > 0):
return False
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if _is_source == True:
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Ignored Peer)', self._system,
int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_stream_id))
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,IGNORED PEER,ACL,{},{},{},{},{},{}'.format(self._system, int_id(_stream_id), int_id(_peer_id), int_id(_rf_src), _slot, int_id(_dst_id)))
return True
return False
def peer_connected(self, _peer_id, _peer):
global white_rids
if white_rids:
self.send_peer_wrids(_peer_id, white_rids)
global black_rids
if black_rids:
self.send_peer_brids(_peer_id, black_rids)
_tg_ids = config['Systems'][self._system]['ACTIVE_TG_IDS']
if _tg_ids:
self.send_peer_tgids(_peer_id, _tg_ids)
_deactive_tg_ids = config['Systems'][self._system]['DEACTIVE_TG_IDS']
if _deactive_tg_ids:
self.send_peer_disabled_tgids(_peer_id, _deactive_tg_ids)
def update_grp_aff(self, _peer_id, _rf_src, _dst_id, _stream_id):
# make sure the peer exists in the affiliations table
if (not int_id(_peer_id) in GRP_AFF.keys()):
GRP_AFF[int_id(_peer_id)] = {}
# remove the source RID from any other affiliated TGs
try:
idx = GRP_AFF[int_id(_peer_id)][int_id(_dst_id)].index(int_id(_rf_src))