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Call State Tracking Now Working 

This is the beginning of TGID rewrite. Next is to figure out how to
store the LC and Embedded LC values for each valid destination so they
aren’t calculated each time a packet has to be sent – should do it ONCE
per call.
This commit is contained in:
Cort Buffington 2016-11-01 20:54:43 -05:00
parent 2fbe26fb42
commit a58b076c8a
2 changed files with 36 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
constants.py
View File

@ -43,6 +43,9 @@ SYNC = {
'BS_DATA': BS_DATA_SYNC
}
# LC Options - Use for Group Voice
LC_OPT = '\x00\x00\x20'
# Precomputed EMB values, where CC always = 1, and PI always = 0
EMB = {
'BURST_B': bitarray('0001001110010001'),
@ -101,4 +104,5 @@ if __name__ == '__main__':
pprint(SYNC)
pprint(EMB)
pprint(SLOT_TYPE)
pprint(SLOT_TYPE)
print(LC_OPT)

63
hb_router.py
View File

@ -80,18 +80,14 @@ class routerMASTER(HBMASTER):
'LSTREAM_ID': '',
'LPKT_TIME': time(),
'LPKT_TYPE': const.HBPF_SLT_VTERM,
'LSEQ_ID': 0x00,
'LC': '',
'EMBLC': [0,0,0,0,0,0]
}
self.ts2_state = {
'LSTREAM_ID': '',
'LPKT_TIME': time(),
'LPKT_TYPE': const.HBPF_SLT_VTERM,
'LSEQ_ID': 0x00,
'LC': '',
'EMBLC': [0,0,0,0,0,0]
}
@ -104,36 +100,32 @@ class routerMASTER(HBMASTER):
logger.error('(%s) DMRD received with invalid Timeslot value: %s', self._master, h(_data))
pkt_time = time()
dmrpkt = _data[20:54]
if (_stream_id != state['LSTREAM_ID']) and ((state['LPKT_TYPE'] != const.HBPF_SLT_VTERM) or (pkt_time < state['LPKT_TIME'] + const.STREAM_TO)):
logger.warning('(%s) Packet received <FROM> SUB: %s REPEATER: %s <TO> TGID %s, SLOT %s collided with existing call', self._master, int_id(_radio_id), int_id(_rf_src), int_id(_dst_id), _slot)
return
if (_stream_id != state['LSTREAM_ID']):
logger.info('(%s) New call stream stareted <FROM> SUB: %s REPEATER: %s <TO> TGID %s, SLOT %s', self._master, int_id(_radio_id), int_id(_rf_src), int_id(_dst_id), _slot)
state['LSTREAM_ID'] = _stream_id
state['LPKT_TIME'] = pkt_time
state['LSEQ_ID'] = _seq
'''
if _frame_type == const.HBPF_DATA_SYNC and _dtype_vseq == const.HBPF_SLT_VHEAD:
decoded = dec_dmr.voice_head_term(dmrpkt)
state['LC'] = decoded['LC']
print(h(state['LC']))
'''
if not state['LC'] and _frame_type == const.HBPF_VOICE:
decoded = dec_dmr.voice(dmrpkt)
state['EMBLC'][_dtype_vseq] = decoded['EMBED']
print(h(decoded['EMBED']))
if state['EMBLC'][1] and state['EMBLC'][2] and state['EMBLC'][3] and state['EMBLC'][4]:
print(h(dec_dmr.bptc.decode_emblc(state['EMBLC'][1] + state['EMBLC'][2] + state['EMBLC'][3] + state['EMBLC'][4])))
print(h(state['EMBLC'][1]),h(state['EMBLC'][2]),h(state['EMBLC'][3]),h(state['EMBLC'][4]))
_bits = int_id(_data[15])
if _call_type == 'group':
# Is this a new call stream?
if (_stream_id != state['LSTREAM_ID']):
if ((state['LPKT_TYPE'] != const.HBPF_SLT_VTERM) or (pkt_time < state['LPKT_TIME'] + const.STREAM_TO)):
logger.warning('(%s) Packet received <FROM> SUB: %s REPEATER: %s <TO> TGID %s, SLOT %s collided with existing call', self._master, int_id(_rf_src), int_id(_radio_id), int_id(_dst_id), _slot)
return
# This is a new call stream
logger.info('(%s) Call stream START <FROM> SUB: %s REPEATER: %s <TO> TGID %s, SLOT %s', self._master, int_id(_rf_src), int_id(_radio_id), int_id(_dst_id), _slot)
state['LSTREAM_ID'] = _stream_id
state['LPKT_TIME'] = pkt_time
# If we can, use the LC from the voice header as to keep all options intact
if _frame_type == const.HBPF_DATA_SYNC and _dtype_vseq == const.HBPF_SLT_VHEAD:
decoded = dec_dmr.voice_head_term(dmrpkt)
state['LC'] = decoded['LC']
# 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.
else:
state['LC'] = const.LC_OPT + _dst_id + _rf_src
_routed = False
for rule in RULES[self._master]['GROUP_VOICE']:
_target = rule['DST_NET']
@ -151,7 +143,14 @@ class routerMASTER(HBMASTER):
logger.debug('(%s) Packet routed to %s system: %s', self._master, CONFIG['SYSTEMS'][_target]['MODE'], _target)
if not _routed:
logger.debug('(%s) Packet router no target TS/TGID %s/%s', self._master, _slot, int_id(_dst_id))
# Final actions - Is this a voice terminator? and set the last packet type
if (_frame_type == const.HBPF_DATA_SYNC) and (_dtype_vseq == const.HBPF_SLT_VTERM) and (state['LPKT_TYPE'] != const.HBPF_SLT_VTERM):
state['LC'] = ''
logger.info('(%s) Call stream END <FROM> SUB: %s REPEATER: %s <TO> TGID %s, SLOT %s', self._master, int_id(_rf_src), int_id(_radio_id), int_id(_dst_id), _slot)
state['LPKT_TYPE'] = _dtype_vseq
class routerCLIENT(HBCLIENT):
def __init__(self, *args, **kwargs):