an OB to OB Support
This commit is contained in:
Cort Buffington
parent
57bfd9b203
commit
316b566b9d
188
hb_confbridge.py
188
hb_confbridge.py
@ -282,78 +282,130 @@ class routerOBP(OPENBRIDGE):
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if (_target['SYSTEM'] != self._system) and (_target['ACTIVE']) and (CONFIG['SYSTEMS'][_target['SYSTEM']]['MODE'] != 'OPENBRIDGE'):
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_target_status = systems[_target['SYSTEM']].STATUS
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_target_system = self._CONFIG['SYSTEMS'][_target['SYSTEM']]
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# BEGIN CONTENTION HANDLING
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#
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# The rules for each of the 4 "ifs" below are listed here for readability. The Frame To Send is:
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# From a different group than last RX from this HBSystem, but it has been less than Group Hangtime
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# From a different group than last TX to this HBSystem, but it has been less than Group Hangtime
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# From the same group as the last RX from this HBSystem, but from a different subscriber, and it has been less than stream timeout
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# From the same group as the last TX to this HBSystem, but from a different subscriber, and it has been less than stream timeout
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# The "continue" at the end of each means the next iteration of the for loop that tests for matching rules
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#
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if ((_target['TGID'] != _target_status[_target['TS']]['RX_TGID']) and ((pkt_time - _target_status[_target['TS']]['RX_TIME']) < _target_system['GROUP_HANGTIME'])):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID %s, target active or in group hangtime: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['RX_TGID']))
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continue
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if ((_target['TGID'] != _target_status[_target['TS']]['TX_TGID']) and ((pkt_time - _target_status[_target['TS']]['TX_TIME']) < _target_system['GROUP_HANGTIME'])):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID%s, target in group hangtime: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['TX_TGID']))
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continue
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if (_target['TGID'] == _target_status[_target['TS']]['RX_TGID']) and ((pkt_time - _target_status[_target['TS']]['RX_TIME']) < hb_const.STREAM_TO):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID%s, matching call already active on target: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['RX_TGID']))
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continue
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if (_target['TGID'] == _target_status[_target['TS']]['TX_TGID']) and (_rf_src != _target_status[_target['TS']]['TX_RFS']) and ((pkt_time - _target_status[_target['TS']]['TX_TIME']) < hb_const.STREAM_TO):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed for subscriber %s, call route in progress on target: HBSystem: %s, TS: %s, TGID: %s, SUB: %s', self._system, int_id(_rf_src), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['TX_TGID']), int_id(_target_status[_target['TS']]['TX_RFS']))
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continue
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# Set values for the contention handler to test next time there is a frame to forward
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_target_status[_target['TS']]['TX_TIME'] = pkt_time
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if _target_system['MODE'] == 'OPENBRIDGE':
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# Is this a new call stream on the target?
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if (_stream_id not in _target_status):
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# This is a new call stream on the target
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_target_status[_stream_id] = {
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'START': pkt_time,
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'CONTENTION':False,
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'RFS': _rf_src,
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'TGID': _dst_id,
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}
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# If we can, use the LC from the voice header as to keep all options intact
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if _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VHEAD:
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decoded = decode.voice_head_term(dmrpkt)
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_target_status[_stream_id]['LC'] = decoded['LC']
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self._logger.debug('(%s) Created LC for OpenBridge destination: System: %s, TGID: %s', self._system, _target['SYSTEM'], int_id(_target['TGID']))
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# If we don't have a voice header then don't wait to decode the Embedded LC
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# just make a new one from the HBP header. This is good enough, and it saves lots of time
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else:
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_target_status[_stream_id]['LC'] = const.LC_OPT + _dst_id + _rf_src
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self._logger.info('(%s) Created LC with *LATE ENTRY* for OpenBridge destination: System: %s, TGID: %s', self._system, _target['SYSTEM'], int_id(_target['TGID']))
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_target_status[_stream_id]['H_LC'] = bptc.encode_header_lc(_target_status[_stream_id]['LC'])
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_target_status[_stream_id]['T_LC'] = bptc.encode_terminator_lc(_target_status[_stream_id]['LC'])
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_target_status[_stream_id]['EMB_LC'] = bptc.encode_emblc(_target_status[_stream_id]['LC'])
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# Record the time of this packet so we can later identify a stale stream
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_target_status[_stream_id]['LAST'] = pkt_time
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# Clear the TS bit -- all OpenBridge streams are effectively on TS1
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_tmp_bits = _bits & ~(1 << 7)
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# Assemble transmit HBP packet header
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_tmp_data = _data[:8] + _target['TGID'] + _data[11:15] + chr(_tmp_bits) + _data[16:20]
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if (_target_status[_target['TS']]['TX_RFS'] != _rf_src) or (_target_status[_target['TS']]['TX_TGID'] != _target['TGID']):
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# Record the DST TGID and Stream ID
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_target_status[_target['TS']]['TX_TGID'] = _target['TGID']
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_target_status[_target['TS']]['TX_STREAM_ID'] = _stream_id
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_target_status[_target['TS']]['TX_RFS'] = _rf_src
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# Generate LCs (full and EMB) for the TX stream
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dst_lc = self.STATUS[_stream_id]['LC'][0:3] + _target['TGID'] + _rf_src
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_target_status[_target['TS']]['TX_H_LC'] = bptc.encode_header_lc(dst_lc)
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_target_status[_target['TS']]['TX_T_LC'] = bptc.encode_terminator_lc(dst_lc)
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_target_status[_target['TS']]['TX_EMB_LC'] = bptc.encode_emblc(dst_lc)
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self._logger.debug('(%s) Generating TX FULL and EMB LCs for destination: System: %s, TS: %s, TGID: %s', self._system, _target['SYSTEM'], _target['TS'], int_id(_target['TGID']))
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self._logger.info('(%s) Conference Bridge: %s, Call Bridged to: System: %s TS: %s, TGID: %s', self._system, _bridge, _target['SYSTEM'], _target['TS'], int_id(_target['TGID']))
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# Handle any necessary re-writes for the destination
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if _system['TS'] != _target['TS']:
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_tmp_bits = _bits ^ 1 << 7
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# MUST TEST FOR NEW STREAM AND IF SO, RE-WRITE THE LC FOR THE TARGET
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# MUST RE-WRITE DESTINATION TGID IF DIFFERENT
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# if _dst_id != rule['DST_GROUP']:
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dmrbits = bitarray(endian='big')
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dmrbits.frombytes(dmrpkt)
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# Create a voice header packet (FULL LC)
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if _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VHEAD:
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dmrbits = _target_status[_stream_id]['H_LC'][0:98] + dmrbits[98:166] + _target_status[_stream_id]['H_LC'][98:197]
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# Create a voice terminator packet (FULL LC)
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elif _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VTERM:
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dmrbits = _target_status[_stream_id]['T_LC'][0:98] + dmrbits[98:166] + _target_status[_stream_id]['T_LC'][98:197]
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# Create a Burst B-E packet (Embedded LC)
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elif _dtype_vseq in [1,2,3,4]:
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dmrbits = dmrbits[0:116] + _target_status[_stream_id]['EMB_LC'][_dtype_vseq] + dmrbits[148:264]
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dmrpkt = dmrbits.tobytes()
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_tmp_data = _tmp_data + dmrpkt #+ _data[53:55]
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else:
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_tmp_bits = _bits
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# BEGIN CONTENTION HANDLING
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#
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# The rules for each of the 4 "ifs" below are listed here for readability. The Frame To Send is:
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# From a different group than last RX from this HBSystem, but it has been less than Group Hangtime
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# From a different group than last TX to this HBSystem, but it has been less than Group Hangtime
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# From the same group as the last RX from this HBSystem, but from a different subscriber, and it has been less than stream timeout
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# From the same group as the last TX to this HBSystem, but from a different subscriber, and it has been less than stream timeout
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# The "continue" at the end of each means the next iteration of the for loop that tests for matching rules
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#
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if ((_target['TGID'] != _target_status[_target['TS']]['RX_TGID']) and ((pkt_time - _target_status[_target['TS']]['RX_TIME']) < _target_system['GROUP_HANGTIME'])):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID %s, target active or in group hangtime: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['RX_TGID']))
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continue
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if ((_target['TGID'] != _target_status[_target['TS']]['TX_TGID']) and ((pkt_time - _target_status[_target['TS']]['TX_TIME']) < _target_system['GROUP_HANGTIME'])):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID%s, target in group hangtime: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['TX_TGID']))
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continue
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if (_target['TGID'] == _target_status[_target['TS']]['RX_TGID']) and ((pkt_time - _target_status[_target['TS']]['RX_TIME']) < hb_const.STREAM_TO):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed to TGID%s, matching call already active on target: HBSystem: %s, TS: %s, TGID: %s', self._system, int_id(_target['TGID']), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['RX_TGID']))
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continue
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if (_target['TGID'] == _target_status[_target['TS']]['TX_TGID']) and (_rf_src != _target_status[_target['TS']]['TX_RFS']) and ((pkt_time - _target_status[_target['TS']]['TX_TIME']) < hb_const.STREAM_TO):
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if self.STATUS[_stream_id]['CONTENTION'] == False:
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self.STATUS[_stream_id]['CONTENTION'] = True
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self._logger.info('(%s) Call not routed for subscriber %s, call route in progress on target: HBSystem: %s, TS: %s, TGID: %s, SUB: %s', self._system, int_id(_rf_src), _target['SYSTEM'], _target['TS'], int_id(_target_status[_target['TS']]['TX_TGID']), int_id(_target_status[_target['TS']]['TX_RFS']))
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continue
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# Set values for the contention handler to test next time there is a frame to forward
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_target_status[_target['TS']]['TX_TIME'] = pkt_time
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# Assemble transmit HBP packet header
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_tmp_data = _data[:8] + _target['TGID'] + _data[11:15] + chr(_tmp_bits) + _data[16:20]
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if (_target_status[_target['TS']]['TX_RFS'] != _rf_src) or (_target_status[_target['TS']]['TX_TGID'] != _target['TGID']):
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# Record the DST TGID and Stream ID
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_target_status[_target['TS']]['TX_TGID'] = _target['TGID']
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_target_status[_target['TS']]['TX_STREAM_ID'] = _stream_id
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_target_status[_target['TS']]['TX_RFS'] = _rf_src
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# Generate LCs (full and EMB) for the TX stream
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dst_lc = self.STATUS[_stream_id]['LC'][0:3] + _target['TGID'] + _rf_src
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_target_status[_target['TS']]['TX_H_LC'] = bptc.encode_header_lc(dst_lc)
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_target_status[_target['TS']]['TX_T_LC'] = bptc.encode_terminator_lc(dst_lc)
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_target_status[_target['TS']]['TX_EMB_LC'] = bptc.encode_emblc(dst_lc)
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self._logger.debug('(%s) Generating TX FULL and EMB LCs for destination: System: %s, TS: %s, TGID: %s', self._system, _target['SYSTEM'], _target['TS'], int_id(_target['TGID']))
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self._logger.info('(%s) Conference Bridge: %s, Call Bridged to: System: %s TS: %s, TGID: %s', self._system, _bridge, _target['SYSTEM'], _target['TS'], int_id(_target['TGID']))
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# MUST TEST FOR NEW STREAM AND IF SO, RE-WRITE THE LC FOR THE TARGET
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# MUST RE-WRITE DESTINATION TGID IF DIFFERENT
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# if _dst_id != rule['DST_GROUP']:
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dmrbits = bitarray(endian='big')
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dmrbits.frombytes(dmrpkt)
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# Create a voice header packet (FULL LC)
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if _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VHEAD:
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dmrbits = _target_status[_target['TS']]['TX_H_LC'][0:98] + dmrbits[98:166] + _target_status[_target['TS']]['TX_H_LC'][98:197]
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# Create a voice terminator packet (FULL LC)
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elif _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VTERM:
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dmrbits = _target_status[_target['TS']]['TX_T_LC'][0:98] + dmrbits[98:166] + _target_status[_target['TS']]['TX_T_LC'][98:197]
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# Create a Burst B-E packet (Embedded LC)
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elif _dtype_vseq in [1,2,3,4]:
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dmrbits = dmrbits[0:116] + _target_status[_target['TS']]['TX_EMB_LC'][_dtype_vseq] + dmrbits[148:264]
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dmrpkt = dmrbits.tobytes()
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_tmp_data = _tmp_data + dmrpkt + _data[53:55]
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# Handle any necessary re-writes for the destination
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if _system['TS'] != _target['TS']:
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_tmp_bits = _bits ^ 1 << 7
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else:
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_tmp_bits = _bits
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# Assemble transmit HBP packet header
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_tmp_data = _data[:8] + _target['TGID'] + _data[11:15] + chr(_tmp_bits) + _data[16:20]
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# MUST TEST FOR NEW STREAM AND IF SO, RE-WRITE THE LC FOR THE TARGET
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# MUST RE-WRITE DESTINATION TGID IF DIFFERENT
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# if _dst_id != rule['DST_GROUP']:
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dmrbits = bitarray(endian='big')
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dmrbits.frombytes(dmrpkt)
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# Create a voice header packet (FULL LC)
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if _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VHEAD:
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dmrbits = _target_status[_target['TS']]['TX_H_LC'][0:98] + dmrbits[98:166] + _target_status[_target['TS']]['TX_H_LC'][98:197]
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# Create a voice terminator packet (FULL LC)
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elif _frame_type == hb_const.HBPF_DATA_SYNC and _dtype_vseq == hb_const.HBPF_SLT_VTERM:
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dmrbits = _target_status[_target['TS']]['TX_T_LC'][0:98] + dmrbits[98:166] + _target_status[_target['TS']]['TX_T_LC'][98:197]
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# Create a Burst B-E packet (Embedded LC)
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elif _dtype_vseq in [1,2,3,4]:
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dmrbits = dmrbits[0:116] + _target_status[_target['TS']]['TX_EMB_LC'][_dtype_vseq] + dmrbits[148:264]
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dmrpkt = dmrbits.tobytes()
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_tmp_data = _tmp_data + dmrpkt + _data[53:55]
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# Transmit the packet to the destination system
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systems[_target['SYSTEM']].send_system(_tmp_data)
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