1897 lines
90 KiB
Python
1897 lines
90 KiB
Python
#! /usr/bin/env python
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# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Max H. Parke KA1RBI
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#
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# This file is part of OP25
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#
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# OP25 is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# OP25 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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# License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with OP25; see the file COPYING. If not, write to the Free
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# Software Foundation, Inc., 51 Franklin Street, Boston, MA
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# 02110-1301, USA.
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#
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import sys
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import os
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import time
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import collections
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import json
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sys.path.append('tdma')
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import lfsr
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from tsvfile import make_config, load_tsv, id_registry, read_tags_file
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from create_image import create_image
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FILTERED_CC_EVENT = 'mot_grg_add_cmd grp_v_ch_grant_updt grp_v_ch_grant_updt_exp'.split()
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def crc16(dat,len): # slow version
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poly = (1<<12) + (1<<5) + (1<<0)
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crc = 0
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for i in range(len):
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bits = (dat >> (((len-1)-i)*8)) & 0xff
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for j in range(8):
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bit = (bits >> (7-j)) & 1
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crc = ((crc << 1) | bit) & 0x1ffff
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if crc & 0x10000:
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crc = (crc & 0xffff) ^ poly
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crc = crc ^ 0xffff
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return crc
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def get_ordinals(s):
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t = 0
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if type(s) is not str and isinstance(s, bytes):
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for c in s:
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t = (t << 8) + c
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else:
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for c in s:
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t = (t << 8) + ord(c)
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return t
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class trunked_system (object):
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def __init__(self, debug=0, config=None, send_event=None, nac=None):
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self.debug = debug
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self.freq_table = {}
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self.stats = {}
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self.stats['tsbks'] = 0
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self.stats['crc'] = 0
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self.tsbk_cache = {}
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self.secondary = {}
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self.adjacent = {}
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self.adjacent_data = {}
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self.rfss_syid = 0
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self.rfss_rfid = 0
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self.rfss_stid = 0
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self.rfss_chan = 0
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self.rfss_txchan = 0
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self.ns_syid = -1
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self.ns_wacn = -1
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self.ns_chan = 0
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self.voice_frequencies = {}
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self.blacklist = {}
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self.whitelist = None
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self.tgid_map = None
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self.unit_id_map = None
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self.offset = 0
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self.sysname = 0
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self.tgid_tags_tsv = ""
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self.unit_id_tags_tsv = ""
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self.trunk_cc = 0
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self.last_trunk_cc = 0
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self.cc_list = []
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self.cc_list_index = 0
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self.CC_HUNT_TIME = 5.0
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self.center_frequency = 0
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self.last_tsbk = 0
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self.cc_timeouts = 0
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self.next_hunt_cc = time.time() + 8.0
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self.last_voice_time = 0.0
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self.talkgroups = {}
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self.frequency_table = {}
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self.CALL_TIMEOUT = 0.7 # call expiration time (sec.)
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self.CHECK_INTERVAL = 0.1 # freq tracking check interval
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self.next_frequency_tracking_expire = 0
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if config:
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self.blacklist = config['blacklist']
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self.whitelist = config['whitelist']
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self.tgid_map = config['tgid_map']
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self.unit_id_map = config['unit_id_map']
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self.offset = config['offset']
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self.sysname = config['sysname']
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self.trunk_cc = config['cclist'][0] # TODO: scan thru list
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self.cc_list = config['cclist']
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self.center_frequency = config['center_frequency']
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self.modulation = config['modulation']
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self.current_srcaddr = 0
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self.current_grpaddr = 0 # from P25 LCW
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self.current_alg = ""
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self.current_algid = 128
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self.current_keyid = 0
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self.send_event = send_event
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self.harris_sgs = {}
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self.nac = nac
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def to_dict(self):
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d = {}
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d['syid'] = self.rfss_syid
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d['sysname'] = self.sysname
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d['rfid'] = self.rfss_rfid
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d['stid'] = self.rfss_stid
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d['sysid'] = self.ns_syid
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d['rxchan'] = self.rfss_chan
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d['txchan'] = self.rfss_txchan
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d['wacn'] = self.ns_wacn
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d['secondary'] = [k for k in self.secondary.keys()]
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d['tsbks'] = self.stats['tsbks']
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d['frequencies'] = {}
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d['frequency_data'] = {}
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d['last_tsbk'] = self.last_tsbk
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d['srcaddr'] = self.current_srcaddr
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d['grpaddr'] = self.current_grpaddr
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d['algid'] = self.current_algid
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d['alg'] = self.current_alg
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d['keyid'] = self.current_keyid
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t = time.time()
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for f in self.voice_frequencies.keys():
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tgs = '%s %s' % (self.voice_frequencies[f]['tgid'][0], self.voice_frequencies[f]['tgid'][1])
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d['frequencies'][f] = 'voice frequency %f tgid(s) %s %4.1fs ago count %d' % (f / 1000000.0, tgs, t - self.voice_frequencies[f]['time'], self.voice_frequencies[f]['counter'])
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d['frequency_data'][f] = {'tgids': self.voice_frequencies[f]['tgid'], 'last_activity': '%7.1f' % (t - self.voice_frequencies[f]['time']), 'counter': self.voice_frequencies[f]['counter']}
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for s in 'srcaddr tg_tag tg_color srcaddr_tag srcaddr_color'.split():
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d['frequency_data'][f][s] = self.voice_frequencies[f][s]
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d['adjacent_data'] = self.adjacent_data
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d['talkgroup_data'] = self.talkgroups
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self.frequency_tracking_expire(always=True)
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d['frequency_tracking'] = self.frequency_table
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d['harris_supergroups'] = self.harris_sgs
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return d
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def to_json(self):
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return json.dumps(self.to_dict())
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def to_string(self):
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s = []
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s.append('rf: syid %x rfid %d stid %d frequency %f uplink %f' % ( self.rfss_syid, self.rfss_rfid, self.rfss_stid, float(self.rfss_chan) / 1000000.0, float(self.rfss_txchan) / 1000000.0))
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s.append('net: syid %x wacn %x frequency %f' % ( self.ns_syid, self.ns_wacn, float(self.ns_chan) / 1000000.0))
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s.append('secondary control channel(s): %s' % ','.join(['%f' % (float(k) / 1000000.0) for k in self.secondary.keys()]))
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s.append('stats: tsbks %d crc %d' % (self.stats['tsbks'], self.stats['crc']))
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s.append('')
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t = time.time()
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for f in self.voice_frequencies:
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tgs = '%s %s' % (self.voice_frequencies[f]['tgid'][0], self.voice_frequencies[f]['tgid'][1])
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s.append('voice frequency %f tgid(s) %s %4.1fs ago count %d' % (f / 1000000.0, tgs, t - self.voice_frequencies[f]['time'], self.voice_frequencies[f]['counter']))
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s.append('')
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for table in self.freq_table:
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a = self.freq_table[table]['frequency'] / 1000000.0
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b = self.freq_table[table]['step'] / 1000000.0
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c = self.freq_table[table]['offset'] / 1000000.0
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s.append('tbl-id: %x frequency: %f step %f offset %f' % ( table, a,b,c))
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#self.freq_table[table]['frequency'] / 1000000.0, self.freq_table[table]['step'] / 1000000.0, self.freq_table[table]['offset']) / 1000000.0)
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for f in self.adjacent:
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s.append('adjacent %f: %s' % (float(f) / 1000000.0, self.adjacent[f]))
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return '\n'.join(s)
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def post_event(self, d):
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if self.send_event is None:
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return
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if d['cc_event'] in FILTERED_CC_EVENT:
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return
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d['json_type'] = 'cc_event'
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d['sysid'] = self.rfss_syid if self.rfss_syid else 0
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d['sysname'] = self.sysname
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d['time'] = time.time()
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d['nac'] = self.nac
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self.send_event(d)
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def mk_tg_dict(self, tgid):
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return {'tg_id': tgid, 'tag': self.get_tag(tgid), 'priority': self.get_prio(tgid), 'color': self.get_tag_color(tgid)}
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def mk_src_dict(self, srcaddr):
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return {'unit_id': srcaddr, 'tag': self.get_unit_id_tag(srcaddr), 'color': self.get_unit_id_color(srcaddr)}
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def get_tdma_slot(self, id):
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table = (id >> 12) & 0xf
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channel = id & 0xfff
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if table not in self.freq_table:
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return None
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if 'tdma' not in self.freq_table[table]:
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return None
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return channel & 1
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# return frequency in Hz
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def channel_id_to_frequency(self, id):
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table = (id >> 12) & 0xf
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channel = id & 0xfff
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if table not in self.freq_table:
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return None
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if 'tdma' not in self.freq_table[table]:
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return self.freq_table[table]['frequency'] + self.freq_table[table]['step'] * channel
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return self.freq_table[table]['frequency'] + self.freq_table[table]['step'] * int(channel / self.freq_table[table]['tdma'])
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def channel_id_to_string(self, id):
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f = self.channel_id_to_frequency(id)
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if f is None:
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return "ID-0x%x" % (id)
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return "%f" % (f / 1000000.0)
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def get_unit_id_color(self, unit_id):
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if not unit_id:
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return 0
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elif self.unit_id_map is None:
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return 0
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return self.unit_id_map.get_color(unit_id)
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def get_unit_id_tag(self, unit_id):
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if not unit_id:
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return ""
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elif self.unit_id_map is None:
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return "Unit %d" % unit_id
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return self.unit_id_map.get_tag(unit_id)
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def get_tag(self, tgid):
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if not tgid:
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return ""
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elif self.tgid_map is None:
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return "Talkgroup %d" % tgid
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return self.tgid_map.get_tag(tgid)
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def get_tag_color(self, tgid):
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if not tgid:
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return 0
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elif self.tgid_map is None:
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return 0
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return self.tgid_map.get_color(tgid) % 100
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# the third col in the tsv file performs two separate roles
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# low-order 2 decimal digits are taken as the tag color code
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# remaining upper digits are priority - this is incompatibile
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# with previous tsv files (if priorities are in use).
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def get_prio(self, tgid):
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if not tgid:
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return 0
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elif self.tgid_map is None:
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return 0
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return int(self.tgid_map.get_color(tgid) // 100)
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def end_call(self, call, code):
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d = {'cc_event': 'end_call', 'code': code, 'srcaddr': call['srcaddr'], 'tgid': call['tgid'], 'duration': call['end_time'] - call['start_time'], 'count': call['count'], 'opcode': -1 }
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self.post_event(d)
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return
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def frequency_tracking_expire(self, always=False):
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current_time = time.time()
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if current_time < self.next_frequency_tracking_expire and not always:
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return
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self.next_frequency_tracking_expire = current_time + self.CHECK_INTERVAL
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for f in self.frequency_table.keys():
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freq = self.frequency_table[f]
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for i in range(len(freq['calls'])):
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call = freq['calls'][i]
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if call is not None and call['end_time'] == 0 and call['last_active'] + self.CALL_TIMEOUT < current_time:
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call['end_time'] = current_time
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self.end_call(call, 1)
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def frequency_tracking(self, frequency, tgid, tdma_slot, srcaddr, protected):
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current_time = time.time()
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is_tdma = tdma_slot is not None
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slot = tdma_slot if is_tdma else 0
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if frequency not in self.frequency_table.keys():
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self.frequency_table[frequency] = {'counter':0,
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'calls': [None,None],
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'tgids': [None,None],
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'last_active': current_time}
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self.frequency_table[frequency]['tdma'] = is_tdma
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call = {'srcaddr': self.mk_src_dict(srcaddr),
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'protected': protected,
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'tgid': self.mk_tg_dict(tgid),
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'count': 0,
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'start_time': current_time,
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'last_active': current_time,
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'end_time': 0}
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self.frequency_table[frequency]['tgids'][slot] = tgid
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self.frequency_table[frequency]['calls'][slot] = call
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return
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self.frequency_table[frequency]['counter'] += 1
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self.frequency_table[frequency]['last_active'] = current_time
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found = 0
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for f in self.frequency_table.keys():
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freq = self.frequency_table[f]
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for i in range(len(freq['tgids'])):
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tg = freq['tgids'][i]
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call = freq['calls'][i]
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if tg is None or call is None or tg != tgid:
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continue
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# general housekeeping: expire calls
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if call['end_time'] == 0 and call['last_active'] + self.CALL_TIMEOUT < current_time:
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call['end_time'] = current_time
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self.end_call(call, 2)
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if f == frequency and freq['tdma'] == is_tdma and i == slot :
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found = 1
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call['last_active'] = current_time
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call['end_time'] = 0
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call['count'] += 1
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if srcaddr is not None:
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call['srcaddr'] = self.mk_src_dict(srcaddr)
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if protected is not None:
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call['protected'] = protected
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else: # found other entry with matching tgid but freq and/or tdma is wrong
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if call['end_time'] == 0:
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call['end_time'] = current_time
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self.end_call(call, 3)
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if found:
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return
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call = {'srcaddr': self.mk_src_dict(srcaddr),
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'protected': protected,
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'tgid': self.mk_tg_dict(tgid),
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'count': 0,
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'start_time': current_time,
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'last_active': current_time,
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'end_time': 0}
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self.frequency_table[frequency]['tdma'] = is_tdma
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self.frequency_table[frequency]['tgids'][slot] = tgid
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self.frequency_table[frequency]['calls'][slot] = call
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if not is_tdma:
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self.frequency_table[frequency]['tgids'][1] = None
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call = self.frequency_table[frequency]['calls'][1]
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if call and call['end_time'] == 0:
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call['end_time'] = current_time
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self.end_call(call, 4)
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self.frequency_table[frequency]['calls'][1] = None
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def update_talkgroup(self, frequency, tgid, tdma_slot, srcaddr):
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if self.debug >= 5:
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sys.stderr.write('%f set tgid=%s, srcaddr=%s\n' % (time.time(), tgid, srcaddr))
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if tgid not in self.talkgroups:
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self.talkgroups[tgid] = {'counter':0}
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if self.debug >= 5:
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sys.stderr.write('%f new tgid: %s %s prio %d\n' % (time.time(), tgid, self.get_tag(tgid), self.get_prio(tgid)))
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self.talkgroups[tgid]['time'] = time.time()
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self.talkgroups[tgid]['frequency'] = frequency
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self.talkgroups[tgid]['tdma_slot'] = tdma_slot
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self.talkgroups[tgid]['prio'] = self.get_prio(tgid)
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self.talkgroups[tgid]['tag_color'] = self.get_tag_color(tgid)
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if srcaddr is None or not srcaddr:
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self.talkgroups[tgid]['srcaddr'] = 0
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self.talkgroups[tgid]['srcaddr_tag'] = ""
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self.talkgroups[tgid]['srcaddr_color'] = 0
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else:
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self.talkgroups[tgid]['srcaddr'] = srcaddr
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self.talkgroups[tgid]['srcaddr_tag'] = self.get_unit_id_tag(srcaddr)
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self.talkgroups[tgid]['srcaddr_color'] = self.get_unit_id_color(srcaddr)
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def update_voice_frequency(self, frequency, tgid=None, tdma_slot=None, srcaddr=None, protected=None):
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if not frequency: # e.g., channel identifier not yet known
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return
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self.frequency_tracking(frequency, tgid, tdma_slot, srcaddr, protected)
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self.update_talkgroup(frequency, tgid, tdma_slot, srcaddr)
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if frequency not in self.voice_frequencies:
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self.voice_frequencies[frequency] = {'counter':0}
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sorted_freqs = collections.OrderedDict(sorted(self.voice_frequencies.items()))
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self.voice_frequencies = sorted_freqs
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if self.debug >= 5:
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sys.stderr.write('%f new freq: %f\n' % (time.time(), frequency/1000000.0))
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if tdma_slot is None:
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tdma_slot = 0
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for s in 'tgid srcaddr tg_tag tg_color srcaddr_tag srcaddr_color'.split():
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if s not in self.voice_frequencies[frequency].keys():
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self.voice_frequencies[frequency][s] = [None, None]
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self.voice_frequencies[frequency]['tgid'][tdma_slot] = tgid
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self.voice_frequencies[frequency]['counter'] += 1
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self.voice_frequencies[frequency]['time'] = time.time()
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self.voice_frequencies[frequency]['tg_tag'][tdma_slot] = self.get_tag(tgid)
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self.voice_frequencies[frequency]['tg_color'][tdma_slot] = self.get_tag_color(tgid)
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if srcaddr is not None:
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self.voice_frequencies[frequency]['srcaddr'][tdma_slot] = srcaddr
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self.voice_frequencies[frequency]['srcaddr_tag'][tdma_slot] = self.get_unit_id_tag(srcaddr)
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self.voice_frequencies[frequency]['srcaddr_color'][tdma_slot] = self.get_unit_id_color(srcaddr)
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def get_updated_talkgroups(self, start_time):
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return [tgid for tgid in self.talkgroups if (
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self.talkgroups[tgid]['time'] >= start_time and
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tgid not in self.blacklist and
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not (self.whitelist and tgid not in self.whitelist))]
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def blacklist_update(self, start_time):
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expired_tgs = [tg for tg in self.blacklist.keys()
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if self.blacklist[tg] is not None
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and self.blacklist[tg] < start_time]
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for tg in expired_tgs:
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self.blacklist.pop(tg)
|
|
|
|
def find_talkgroup(self, start_time, tgid=None, hold=False):
|
|
tgt_tgid = None
|
|
self.blacklist_update(start_time)
|
|
|
|
if tgid is not None and tgid in self.talkgroups:
|
|
tgt_tgid = tgid
|
|
|
|
for active_tgid in self.talkgroups:
|
|
if hold:
|
|
break
|
|
if self.talkgroups[active_tgid]['time'] < start_time:
|
|
continue
|
|
if active_tgid in self.blacklist:
|
|
continue
|
|
if self.whitelist and active_tgid not in self.whitelist:
|
|
continue
|
|
if self.talkgroups[active_tgid]['tdma_slot'] is not None and (self.ns_syid < 0 or self.ns_wacn < 0):
|
|
continue
|
|
if tgt_tgid is None:
|
|
tgt_tgid = active_tgid
|
|
elif self.talkgroups[active_tgid]['prio'] < self.talkgroups[tgt_tgid]['prio']:
|
|
tgt_tgid = active_tgid
|
|
|
|
if tgt_tgid is not None and self.talkgroups[tgt_tgid]['time'] >= start_time:
|
|
return self.talkgroups[tgt_tgid]['frequency'], tgt_tgid, self.talkgroups[tgt_tgid]['tdma_slot'], self.talkgroups[tgt_tgid]['srcaddr']
|
|
return None, None, None, None
|
|
|
|
def dump_tgids(self):
|
|
sys.stderr.write("Known tgids: { ")
|
|
for tgid in sorted(self.talkgroups.keys()):
|
|
sys.stderr.write("%d " % tgid);
|
|
sys.stderr.write("}\n")
|
|
|
|
def add_blacklist(self, tgid, end_time=None):
|
|
if not tgid:
|
|
return
|
|
self.blacklist[tgid] = end_time
|
|
|
|
def decode_mbt_data(self, opcode, src, header, mbt_data):
|
|
self.cc_timeouts = 0
|
|
self.last_tsbk = time.time()
|
|
updated = 0
|
|
if self.debug > 10:
|
|
sys.stderr.write('decode_mbt_data: %x %x\n' %(opcode, mbt_data))
|
|
if opcode == 0x0: # grp voice channel grant
|
|
mfrid = (header >> 72) & 0xff
|
|
srcaddr = (header >> 48) & 0xffffff
|
|
opts = (header >> 24) & 0xff
|
|
ch1 = (mbt_data >> 64) & 0xffff
|
|
ch2 = (mbt_data >> 48) & 0xffff
|
|
ga = (mbt_data >> 32) & 0xffff
|
|
f = self.channel_id_to_frequency(ch1)
|
|
if self.debug > 0 and src != srcaddr:
|
|
sys.stderr.write('decode_mbt_data: grp_v_ch_grant: src %d does not match srcaddr %d\n' % (src, srcaddr))
|
|
d = {'cc_event': 'grp_v_ch_grant_mbt', 'mfrid': mfrid, 'options': opts, 'frequency': f, 'group': self.mk_tg_dict(ga), 'srcaddr': self.mk_src_dict(srcaddr), 'opcode': opcode, 'tdma_slot': self.get_tdma_slot(ch1) }
|
|
self.post_event(d)
|
|
self.update_voice_frequency(f, tgid=ga, tdma_slot=self.get_tdma_slot(ch1), srcaddr=srcaddr, protected=opts&64 == 64)
|
|
if f:
|
|
updated += 1
|
|
if self.debug > 10:
|
|
sys.stderr.write('mbt00 voice grant ch1 %x ch2 %x addr 0x%x\n' %(ch1, ch2, ga))
|
|
elif opcode == 0x3c: # adjacent status
|
|
syid = (header >> 48) & 0xfff
|
|
rfid = (header >> 24) & 0xff
|
|
stid = (header >> 16) & 0xff
|
|
ch1 = (mbt_data >> 80) & 0xffff
|
|
ch2 = (mbt_data >> 64) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if f1 and f2:
|
|
self.adjacent[f1] = 'rfid: %d stid:%d uplink:%f' % (rfid, stid, f2 / 1000000.0)
|
|
self.adjacent_data[f1] = {'rfid': rfid, 'stid':stid, 'uplink': f2, 'table': None, 'sysid': syid}
|
|
if self.debug > 10:
|
|
sys.stderr.write('mbt3c adjacent sys %x rfid %x stid %x ch1 %x ch2 %x f1 %s f2 %s\n' % (syid, rfid, stid, ch1, ch2, self.channel_id_to_string(ch1), self.channel_id_to_string(ch2)))
|
|
elif opcode == 0x3b: # network status
|
|
syid = (header >> 48) & 0xfff
|
|
wacn = (mbt_data >> 76) & 0xfffff
|
|
ch1 = (mbt_data >> 56) & 0xffff
|
|
ch2 = (mbt_data >> 40) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if f1 and f2:
|
|
self.ns_syid = syid
|
|
self.ns_wacn = wacn
|
|
self.ns_chan = f1
|
|
if self.debug > 10:
|
|
sys.stderr.write('mbt3b net stat sys %x wacn %x ch1 %s ch2 %s\n' %(syid, wacn, self.channel_id_to_string(ch1), self.channel_id_to_string(ch2)))
|
|
elif opcode == 0x3a: # rfss status
|
|
syid = (header >> 48) & 0xfff
|
|
rfid = (mbt_data >> 88) & 0xff
|
|
stid = (mbt_data >> 80) & 0xff
|
|
ch1 = (mbt_data >> 64) & 0xffff
|
|
ch2 = (mbt_data >> 48) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if f1 and f2:
|
|
self.rfss_syid = syid
|
|
self.rfss_rfid = rfid
|
|
self.rfss_stid = stid
|
|
self.rfss_chan = f1
|
|
self.rfss_txchan = f2
|
|
if self.debug > 10:
|
|
sys.stderr.write('mbt3a rfss stat sys %x rfid %x stid %x ch1 %s ch2 %s\n' %(syid, rfid, stid, self.channel_id_to_string(ch1), self.channel_id_to_string(ch2)))
|
|
elif opcode == 0x31: # AUTH_DMD
|
|
mfrid = (header >> 72) & 0xff
|
|
target_address = (header >> 48) & 0xffffff
|
|
wacn_p1 = (header >> 16) & 0xffff
|
|
msg_wacn = (wacn_p1 << 4) | (mbt_data >> 188) & 0xf
|
|
msg_sysid = (mbt_data >> 176) & 0xfff
|
|
target_id = (mbt_data >> 152) & 0xffffff
|
|
rs = (mbt_data >> 72) & 0x3ff
|
|
rand1 = (mbt_data >> 32) & 0x1f
|
|
d = {'cc_event': 'auth_dmd', 'mfrid': mfrid, 'target_address': self.mk_src_dict(target_address), 'target_id': self.mk_src_dict(target_id), 'opcode': opcode, 'msg_sysid': msg_sysid, 'msg_wacn': msg_wacn, 'rs': rs, 'rand1': rand1 }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('mbt31 auth_dmd target %d wacn 0x%x sysid 0x%x target id %d rs 0x%x rand1 0x%x\n' % (target_address, msg_wacn, msg_sysid, target_id, rs, rand1))
|
|
else:
|
|
sys.stderr.write('decode_mbt_data(): received unsupported mbt opcode %x\n' % opcode)
|
|
return updated
|
|
|
|
def decode_tdma_blk(self, blk):
|
|
self.stats['tsbks'] += 1
|
|
msg0 = get_ordinals(blk[:1])
|
|
op = (msg0 >> 6) & 3
|
|
moc = msg0 & 0x3f
|
|
if self.debug > 1:
|
|
sys.stderr.write('tdma_cc: decode_blk: op %x moc %x len %d msg0 0x%x\n' % (op, moc, len(blk), msg0))
|
|
if op == 0 and moc == 0: # null msg
|
|
if self.debug > 10:
|
|
sys.stderr.write('tdma_cc: null block\n')
|
|
return -1;
|
|
if op == 0 and moc == 8: # null msg zero bias
|
|
if self.debug > 10:
|
|
sys.stderr.write('tdma_cc: null block zero bias\n')
|
|
return -1;
|
|
|
|
if op == 1 and moc == 0x38: # system service broadcast
|
|
if self.debug > 10:
|
|
sys.stderr.write('tdma_cc: system service broadcast\n')
|
|
msglen = 9
|
|
elif op == 3 and moc == 0x16: # SNDCP data ch
|
|
if self.debug > 10:
|
|
sys.stderr.write('tdma_cc: SNDCP data channel announce\n')
|
|
msglen = 9
|
|
elif op == 0 and moc == 1: # group voice channel user
|
|
msglen = 7
|
|
msg = get_ordinals(blk[:msglen])
|
|
options = (msg >> 40) & 0xff
|
|
ga1 = (msg >> 24) & 0xffff
|
|
sa1 = (msg ) & 0xffffff
|
|
if self.debug > 1:
|
|
sys.stderr.write('decode_blk: group voice channel user opts %x ga %x sa %x\n' % (options, ga1, sa1))
|
|
elif op == 0 and moc == 0x30: # power control sq
|
|
msglen = 5
|
|
if self.debug > 1:
|
|
sys.stderr.write('decode_blk: power control sq\n')
|
|
elif op == 1 and moc == 0x30: # sync broadcast
|
|
msglen = 9
|
|
msg = get_ordinals(blk[:msglen])
|
|
year = (msg >> 33) & 0x7f
|
|
month = (msg >> 29) & 0xf
|
|
day = (msg >> 24) & 0x1f
|
|
if self.debug > 1:
|
|
sys.stderr.write('decode_blk: synchronization broadcast %d %d %d\n' % (year, month, day))
|
|
elif op == 1 and moc == 2: # group voice channel grant update
|
|
msglen = 9
|
|
msg = get_ordinals(blk[:msglen])
|
|
ch1 = (msg >> 48) & 0xffff
|
|
ga1 = (msg >> 32) & 0xffff
|
|
ch2 = (msg >> 16) & 0xffff
|
|
ga2 = (msg ) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if self.debug > 1:
|
|
sys.stderr.write('decode_blk: group voice channel grant update ga1 %d ch1 %s ga2 %d ch2 %s\n' % (ga1, f1, ga2, f2))
|
|
opcode = 2 # (p25p1 opcode)
|
|
d = {'cc_event': 'grp_v_ch_grant_updt', 'mfrid': 0, 'frequency1': f1, 'group1': self.mk_tg_dict(ga1), 'opcode': opcode, 'tdma_slot': self.get_tdma_slot(ch1) }
|
|
self.update_voice_frequency(f1, tgid=ga1, tdma_slot=self.get_tdma_slot(ch1))
|
|
if f1 != f2:
|
|
self.update_voice_frequency(f2, tgid=ga2, tdma_slot=self.get_tdma_slot(ch2))
|
|
d['frequency2'] = f2
|
|
d['group2'] = self.mk_tg_dict(ga2)
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('phase 2 tsbk02 grant update: chan %s %d %s %d\n' %(self.channel_id_to_string(ch1), ga1, self.channel_id_to_string(ch2), ga2))
|
|
elif op == 1 and moc == 0x3c: # adjacent
|
|
msglen = 9
|
|
msg = get_ordinals(blk[:msglen])
|
|
syid = (msg >> 40) & 0xfff
|
|
rfid = (msg >> 32) & 0xff
|
|
stid = (msg >> 24) & 0xff
|
|
ch1 = (msg >> 8) & 0xffff
|
|
table = (ch1 >> 12) & 0xf
|
|
cls = msg & 0xff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
if f1 and table in self.freq_table:
|
|
self.adjacent[f1] = 'rfid: %d stid:%d uplink:%f tbl:%d sysid:0x%x' % (rfid, stid, (f1 + self.freq_table[table]['offset']) / 1000000.0, table, syid)
|
|
self.adjacent_data[f1] = {'rfid': rfid, 'stid':stid, 'uplink': f1 + self.freq_table[table]['offset'], 'table': table, 'sysid':syid}
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3c adjacent: rfid %x stid %d ch1 %x(%s)\n' %(rfid, stid, ch1, self.channel_id_to_string(ch1)))
|
|
if table in self.freq_table:
|
|
sys.stderr.write('tsbk3c : %s %s\n' % (self.freq_table[table]['frequency'] , self.freq_table[table]['step'] ))
|
|
elif op == 1 and moc == 0x33: # iden up tdma
|
|
msglen = 9
|
|
opcode = 0x33
|
|
msg = get_ordinals(blk[:msglen])
|
|
iden = (msg >> 60) & 0xf
|
|
channel_type = (msg >> 56) & 0xf
|
|
toff0 = (msg >> 42) & 0x3fff
|
|
toff_sign = (toff0 >> 13) & 1
|
|
toff = toff0 & 0x1fff
|
|
if toff_sign == 0:
|
|
toff = 0 - toff
|
|
spac = (msg >> 32) & 0x3ff
|
|
f1 = (msg) & 0xffffffff
|
|
slots_per_carrier = [1,1,1,2,4,2]
|
|
self.freq_table[iden] = {}
|
|
self.freq_table[iden]['offset'] = toff * spac * 125
|
|
self.freq_table[iden]['step'] = spac * 125
|
|
self.freq_table[iden]['frequency'] = f1 * 5
|
|
self.freq_table[iden]['tdma'] = slots_per_carrier[channel_type]
|
|
d = {'cc_event': 'iden_up_tdma', 'iden': iden, 'offset': self.freq_table[iden]['offset'], 'step': self.freq_table[iden]['step'], 'freq': self.freq_table[iden]['frequency'], 'slots': self.freq_table[iden]['tdma'], 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk33 iden up tdma id %d f %d offset %d spacing %d slots/carrier %d\n' % (iden, self.freq_table[iden]['frequency'], self.freq_table[iden]['offset'], self.freq_table[iden]['step'], self.freq_table[iden]['tdma']))
|
|
elif op == 1 and moc == 0x3b: # network status
|
|
msglen = 11
|
|
opcode = 0x3b
|
|
msg = get_ordinals(blk[:msglen])
|
|
wacn = (msg >> 52) & 0xfffff
|
|
syid = (msg >> 40) & 0xfff
|
|
ch1 = (msg >> 24) & 0xffff
|
|
color = (msg ) & 0xfff
|
|
sys.stderr.write('tsbk3b net stat: color: 0x%x\n' % color)
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
if f1:
|
|
self.ns_syid = syid
|
|
self.ns_wacn = wacn
|
|
self.ns_chan = f1
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3b net stat: wacn %x syid %x ch1 %x(%s)\n' %(wacn, syid, ch1, self.channel_id_to_string(ch1)))
|
|
elif op == 1 and moc == 0x3a: # rfss status
|
|
msglen = 9
|
|
opcode = 0x3a
|
|
msg = get_ordinals(blk[:msglen])
|
|
syid = (msg >> 40) & 0xfff
|
|
rfid = (msg >> 32) & 0xff
|
|
stid = (msg >> 24) & 0xff
|
|
chan = (msg >> 8) & 0xffff
|
|
f1 = self.channel_id_to_frequency(chan)
|
|
if f1:
|
|
self.rfss_syid = syid
|
|
self.rfss_rfid = rfid
|
|
self.rfss_stid = stid
|
|
self.rfss_chan = f1
|
|
self.rfss_txchan = f1 + self.freq_table[chan >> 12]['offset']
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3a rfss status: syid: %x rfid %x stid %d ch1 %x(%s)\n' %(syid, rfid, stid, chan, self.channel_id_to_string(chan)))
|
|
elif op == 1 and moc == 0x39: # secondary cc
|
|
msglen = 9
|
|
opcode = 0x39
|
|
msg = get_ordinals(blk[:msglen])
|
|
rfid = (msg >> 56) & 0xff
|
|
stid = (msg >> 48) & 0xff
|
|
ch1 = (msg >> 32) & 0xffff
|
|
ch2 = (msg >> 8) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if f1 and f2:
|
|
self.secondary[ f1 ] = 1
|
|
self.secondary[ f2 ] = 1
|
|
sorted_freqs = collections.OrderedDict(sorted(self.secondary.items()))
|
|
self.secondary = sorted_freqs
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk39 secondary cc: rfid %x stid %d ch1 %x(%s) ch2 %x(%s)\n' %(rfid, stid, ch1, self.channel_id_to_string(ch1), ch2, self.channel_id_to_string(ch2)))
|
|
elif op == 1 and moc == 0x3d: # iden_up
|
|
msglen = 9
|
|
opcode = 0x3d
|
|
msg = get_ordinals(blk[:msglen])
|
|
iden = (msg >> 60) & 0xf
|
|
bw = (msg >> 51) & 0x1ff
|
|
toff0 = (msg >> 42) & 0x1ff
|
|
spac = (msg >> 32) & 0x3ff
|
|
freq = msg & 0xffffffff
|
|
toff_sign = (toff0 >> 8) & 1
|
|
toff = toff0 & 0xff
|
|
if toff_sign == 0:
|
|
toff = 0 - toff
|
|
txt = ["mob xmit < recv", "mob xmit > recv"]
|
|
self.freq_table[iden] = {}
|
|
self.freq_table[iden]['offset'] = toff * 250000
|
|
self.freq_table[iden]['step'] = spac * 125
|
|
self.freq_table[iden]['frequency'] = freq * 5
|
|
d = {'cc_event': 'iden_up', 'iden': iden, 'offset': self.freq_table[iden]['offset'], 'step': self.freq_table[iden]['step'], 'freq': self.freq_table[iden]['frequency'], 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3d iden id %d toff %f spac %f freq %f\n' % (iden, toff * 0.25, spac * 0.125, freq * 0.000005))
|
|
else:
|
|
msglen = -1
|
|
if self.debug > 0:
|
|
sys.stderr.write ('tdma_cc unknown request: %x %x %x\n' % (op, moc, get_ordinals(blk)))
|
|
return msglen
|
|
|
|
def decode_tdma_cc(self, blk):
|
|
while True:
|
|
rc = self.decode_tdma_blk(blk)
|
|
if rc < 1:
|
|
break
|
|
if rc >= len(blk):
|
|
break
|
|
blk = blk[rc:]
|
|
|
|
def decode_tsbk_harris(self, tsbk, opcode, mfrid):
|
|
HARRIS_SGS_EXPIRES = 5.0 # sec.
|
|
updated = 0
|
|
if opcode != 0x30: # GRG_EXENC_CMD
|
|
sys.stderr.write('decode_tsbk: unsupported opcode %02x mfrid %02x\n' % (opcode, mfrid))
|
|
return updated
|
|
grg_options = (tsbk >> 72) & 0xff
|
|
opt_2way = (grg_options & 0x80) == 0
|
|
opt_group = (grg_options & 0x40) != 0
|
|
opt_act = (grg_options & 0x20) != 0
|
|
opt_ssn = grg_options & 0x1f
|
|
sg = (tsbk >> 56) & 0xffff
|
|
keyid = (tsbk >> 40) & 0xffff
|
|
target = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'grg_exenc_cmd', 'mfrid': mfrid, 'opt_2way': opt_2way, 'opt_group': opt_group, 'opt_act': opt_act, 'opt_ssn': opt_ssn, 'sg': self.mk_tg_dict(sg), 'keyid': keyid}
|
|
if opt_group: # target is a group
|
|
algid = (target >> 16) & 0xff
|
|
target = target & 0xffff
|
|
d['target_group'] = self.mk_tg_dict(target)
|
|
else: # target is a subscriber unit id
|
|
algid = 128
|
|
d['target_unit'] = self.mk_src_dict(target)
|
|
d['algid'] = algid
|
|
if opt_act and opt_group: # only group id type supported
|
|
sgkey = '%d-%d' % (sg, target)
|
|
self.harris_sgs[sgkey] = {'supergroup': self.mk_tg_dict(sg), 'target_group': self.mk_tg_dict(target), 'algid': algid, 'keyid': keyid, 'expires': time.time() + HARRIS_SGS_EXPIRES}
|
|
return updated
|
|
|
|
def decode_tsbk_mot(self, tsbk, opcode, mfrid):
|
|
updated = 0
|
|
if opcode == 0x00: # MOT_GRG_ADD_CMD
|
|
sg = (tsbk >> 64) & 0xffff
|
|
ga1 = (tsbk >> 48) & 0xffff
|
|
ga2 = (tsbk >> 32) & 0xffff
|
|
ga3 = (tsbk >> 16) & 0xffff
|
|
d = {'cc_event': 'mot_grg_add_cmd', 'mfrid': mfrid, 'sg': self.mk_tg_dict(sg), 'ga1': self.mk_tg_dict(ga1), 'ga2': self.mk_tg_dict(ga2), 'ga3': self.mk_tg_dict(ga3), 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('MOT_GRG_ADD_CMD(0x00): sg:%d ga1:%d ga2:%d ga3:%d\n' % (sg, ga1, ga2, ga3))
|
|
elif opcode == 0x01: #MOT_GRG_DEL_CMD
|
|
sg = (tsbk >> 64) & 0xffff
|
|
ga1 = (tsbk >> 48) & 0xffff
|
|
ga2 = (tsbk >> 32) & 0xffff
|
|
ga3 = (tsbk >> 16) & 0xffff
|
|
d = {'cc_event': 'mot_grg_del_cmd', 'mfrid': mfrid, 'sg': self.mk_tg_dict(sg), 'ga1': self.mk_tg_dict(ga1), 'ga2': self.mk_tg_dict(ga2), 'ga3': self.mk_tg_dict(ga3), 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('MOT_GRG_DEL_CMD(0x01): sg:%d ga1:%d ga2:%d ga3:%d\n' % (sg, ga1, ga2, ga3))
|
|
elif opcode == 0x02: # MOT_GRG_CN_CRANT
|
|
ch = (tsbk >> 56) & 0xffff
|
|
sg = (tsbk >> 40) & 0xffff
|
|
sa = (tsbk >> 16) & 0xffffff
|
|
f = self.channel_id_to_frequency(ch)
|
|
d = {'cc_event': 'mot_grg_cn_grant', 'mfrid': mfrid, 'frequency': f, 'sg': self.mk_tg_dict(sg), 'sa': self.mk_src_dict(sa), 'opcode': opcode }
|
|
self.post_event(d)
|
|
self.update_voice_frequency(f, tgid=sg, tdma_slot=self.get_tdma_slot(ch), srcaddr=sa)
|
|
if f:
|
|
updated += 1
|
|
if self.debug > 10:
|
|
sys.stderr.write('MOT_GRG_CN_GRANT(0x02): freq %s sg:%d sa:%d\n' % (self.channel_id_to_string(ch), sg, sa))
|
|
elif opcode == 0x03: #MOT_GRG_CN_GRANT_UPDT
|
|
ch1 = (tsbk >> 64) & 0xffff
|
|
sg1 = (tsbk >> 48) & 0xffff
|
|
ch2 = (tsbk >> 32) & 0xffff
|
|
sg2 = (tsbk >> 16) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
d = {'cc_event': 'mot_grg_cn_grant_updt', 'mfrid': mfrid, 'frequency1': f1, 'sg1': self.mk_tg_dict(sg1), 'opcode': opcode }
|
|
self.update_voice_frequency(f1, tgid=sg1, tdma_slot=self.get_tdma_slot(ch1))
|
|
if f1 != f2:
|
|
self.update_voice_frequency(f2, tgid=sg2, tdma_slot=self.get_tdma_slot(ch2))
|
|
d['sg2'] = self.mk_tg_dict(sg2)
|
|
d['frequency2'] = f2
|
|
self.post_event(d)
|
|
if f1:
|
|
updated += 1
|
|
if f2:
|
|
updated += 1
|
|
if self.debug > 10:
|
|
sys.stderr.write('MOT_GRG_CN_GRANT_UPDT(0x03): freq %s sg1:%d freq %s sg2:%d\n' % (self.channel_id_to_string(ch1), sg1, self.channel_id_to_string(ch2), sg2))
|
|
else:
|
|
if self.debug > 10:
|
|
sys.stderr.write('decode_tsbk: unsupported opcode %02x mfrid %02x\n' % (opcode, mfrid))
|
|
return updated
|
|
|
|
def decode_tsbk(self, tsbk):
|
|
self.cc_timeouts = 0
|
|
self.last_tsbk = time.time()
|
|
self.stats['tsbks'] += 1
|
|
updated = 0
|
|
tsbk = tsbk << 16 # for missing crc
|
|
opcode = (tsbk >> 88) & 0x3f
|
|
mfrid = (tsbk >> 80) & 0xff # mfrid
|
|
if self.debug > 10:
|
|
sys.stderr.write('TSBK: 0x%02x 0x%024x mfrid %02x\n' % (opcode, tsbk, mfrid))
|
|
|
|
if mfrid == 0x90:
|
|
return self.decode_tsbk_mot(tsbk, opcode, mfrid)
|
|
elif mfrid == 0xa4:
|
|
return self.decode_tsbk_harris(tsbk, opcode, mfrid)
|
|
elif mfrid != 0:
|
|
sys.stderr.write('unsupported tsbk mfrid: 0x%02x opcode 0x%02x\n' % (mfrid, opcode))
|
|
return updated
|
|
|
|
if opcode == 0x00: # group voice chan grant
|
|
opts = (tsbk >> 72) & 0xff
|
|
ch = (tsbk >> 56) & 0xffff
|
|
ga = (tsbk >> 40) & 0xffff
|
|
sa = (tsbk >> 16) & 0xffffff
|
|
f = self.channel_id_to_frequency(ch)
|
|
d = {'cc_event': 'grp_v_ch_grant', 'mfrid': mfrid, 'options': opts, 'frequency': f, 'group': self.mk_tg_dict(ga), 'srcaddr': self.mk_src_dict(sa), 'opcode': opcode, 'tdma_slot': self.get_tdma_slot(ch) }
|
|
self.post_event(d)
|
|
self.update_voice_frequency(f, tgid=ga, tdma_slot=self.get_tdma_slot(ch), srcaddr=sa, protected=opts&64 == 64)
|
|
if f:
|
|
updated += 1
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk00 grant freq %s ga %d sa %d\n' % (self.channel_id_to_string(ch), ga, sa))
|
|
elif opcode == 0x02: # group voice chan grant update
|
|
ch1 = (tsbk >> 64) & 0xffff
|
|
ga1 = (tsbk >> 48) & 0xffff
|
|
ch2 = (tsbk >> 32) & 0xffff
|
|
ga2 = (tsbk >> 16) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
d = {'cc_event': 'grp_v_ch_grant_updt', 'mfrid': mfrid, 'frequency1': f1, 'group1': self.mk_tg_dict(ga1), 'opcode': opcode, 'tdma_slot': self.get_tdma_slot(ch1) }
|
|
self.update_voice_frequency(f1, tgid=ga1, tdma_slot=self.get_tdma_slot(ch1))
|
|
if f1 != f2:
|
|
self.update_voice_frequency(f2, tgid=ga2, tdma_slot=self.get_tdma_slot(ch2))
|
|
d['frequency2'] = f2
|
|
d['group2'] = self.mk_tg_dict(ga2)
|
|
if f1:
|
|
updated += 1
|
|
if f2:
|
|
updated += 1
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk02 grant update: chan %s %d %s %d\n' %(self.channel_id_to_string(ch1), ga1, self.channel_id_to_string(ch2), ga2))
|
|
elif opcode == 0x03: # group voice chan grant update exp : TIA.102-AABC-B-2005 page 56
|
|
opts = (tsbk >> 72) & 0xff
|
|
ch1 = (tsbk >> 48) & 0xffff
|
|
ch2 = (tsbk >> 32) & 0xffff
|
|
ga = (tsbk >> 16) & 0xffff
|
|
f = self.channel_id_to_frequency(ch1)
|
|
d = {'cc_event': 'grp_v_ch_grant_updt_exp', 'mfrid': mfrid, 'options': opts, 'frequency': f, 'group': self.mk_tg_dict(ga), 'opcode': opcode, 'tdma_slot': self.get_tdma_slot(ch1) }
|
|
self.post_event(d)
|
|
self.update_voice_frequency(f, tgid=ga, tdma_slot=self.get_tdma_slot(ch1))
|
|
if f:
|
|
updated += 1
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk03: freq-t %s freq-r %s ga:%d\n' % (self.channel_id_to_string(ch1), self.channel_id_to_string(ch2), ga))
|
|
|
|
elif opcode == 0x16: # sndcp data ch
|
|
ch1 = (tsbk >> 48) & 0xffff
|
|
ch2 = (tsbk >> 32) & 0xffff
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk16 sndcp data ch: chan %x %x\n' % (ch1, ch2))
|
|
elif opcode == 0x34: # iden_up vhf uhf
|
|
iden = (tsbk >> 76) & 0xf
|
|
bwvu = (tsbk >> 72) & 0xf
|
|
toff0 = (tsbk >> 58) & 0x3fff
|
|
spac = (tsbk >> 48) & 0x3ff
|
|
freq = (tsbk >> 16) & 0xffffffff
|
|
toff_sign = (toff0 >> 13) & 1
|
|
toff = toff0 & 0x1fff
|
|
if toff_sign == 0:
|
|
toff = 0 - toff
|
|
txt = ["mob Tx-", "mob Tx+"]
|
|
self.freq_table[iden] = {}
|
|
self.freq_table[iden]['offset'] = toff * spac * 125
|
|
self.freq_table[iden]['step'] = spac * 125
|
|
self.freq_table[iden]['frequency'] = freq * 5
|
|
d = {'cc_event': 'iden_up_vu', 'iden': iden, 'bwvu': bwvu, 'offset': self.freq_table[iden]['offset'], 'step': self.freq_table[iden]['step'], 'freq': self.freq_table[iden]['frequency'], 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk34 iden vhf/uhf id %d toff %f spac %f freq %f [%s]\n' % (iden, toff * spac * 0.125 * 1e-3, spac * 0.125, freq * 0.000005, txt[toff_sign]))
|
|
elif opcode == 0x33: # iden_up_tdma
|
|
iden = (tsbk >> 76) & 0xf
|
|
channel_type = (tsbk >> 72) & 0xf
|
|
toff0 = (tsbk >> 58) & 0x3fff
|
|
spac = (tsbk >> 48) & 0x3ff
|
|
toff_sign = (toff0 >> 13) & 1
|
|
toff = toff0 & 0x1fff
|
|
if toff_sign == 0:
|
|
toff = 0 - toff
|
|
f1 = (tsbk >> 16) & 0xffffffff
|
|
slots_per_carrier = [1,1,1,2,4,2]
|
|
self.freq_table[iden] = {}
|
|
self.freq_table[iden]['offset'] = toff * spac * 125
|
|
self.freq_table[iden]['step'] = spac * 125
|
|
self.freq_table[iden]['frequency'] = f1 * 5
|
|
self.freq_table[iden]['tdma'] = slots_per_carrier[channel_type]
|
|
d = {'cc_event': 'iden_up_tdma', 'iden': iden, 'offset': self.freq_table[iden]['offset'], 'step': self.freq_table[iden]['step'], 'freq': self.freq_table[iden]['frequency'], 'slots': self.freq_table[iden]['tdma'], 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk33 iden up tdma id %d f %d offset %d spacing %d slots/carrier %d\n' % (iden, self.freq_table[iden]['frequency'], self.freq_table[iden]['offset'], self.freq_table[iden]['step'], self.freq_table[iden]['tdma']))
|
|
elif opcode == 0x3d: # iden_up
|
|
iden = (tsbk >> 76) & 0xf
|
|
bw = (tsbk >> 67) & 0x1ff
|
|
toff0 = (tsbk >> 58) & 0x1ff
|
|
spac = (tsbk >> 48) & 0x3ff
|
|
freq = (tsbk >> 16) & 0xffffffff
|
|
toff_sign = (toff0 >> 8) & 1
|
|
toff = toff0 & 0xff
|
|
if toff_sign == 0:
|
|
toff = 0 - toff
|
|
txt = ["mob xmit < recv", "mob xmit > recv"]
|
|
self.freq_table[iden] = {}
|
|
self.freq_table[iden]['offset'] = toff * 250000
|
|
self.freq_table[iden]['step'] = spac * 125
|
|
self.freq_table[iden]['frequency'] = freq * 5
|
|
d = {'cc_event': 'iden_up', 'iden': iden, 'offset': self.freq_table[iden]['offset'], 'step': self.freq_table[iden]['step'], 'freq': self.freq_table[iden]['frequency'], 'opcode': opcode }
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3d iden id %d toff %f spac %f freq %f\n' % (iden, toff * 0.25, spac * 0.125, freq * 0.000005))
|
|
elif opcode == 0x3a: # rfss status
|
|
syid = (tsbk >> 56) & 0xfff
|
|
rfid = (tsbk >> 48) & 0xff
|
|
stid = (tsbk >> 40) & 0xff
|
|
chan = (tsbk >> 24) & 0xffff
|
|
f1 = self.channel_id_to_frequency(chan)
|
|
if f1:
|
|
self.rfss_syid = syid
|
|
self.rfss_rfid = rfid
|
|
self.rfss_stid = stid
|
|
self.rfss_chan = f1
|
|
self.rfss_txchan = f1 + self.freq_table[chan >> 12]['offset']
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3a rfss status: syid: %x rfid %x stid %d ch1 %x(%s)\n' %(syid, rfid, stid, chan, self.channel_id_to_string(chan)))
|
|
elif opcode == 0x39: # secondary cc
|
|
rfid = (tsbk >> 72) & 0xff
|
|
stid = (tsbk >> 64) & 0xff
|
|
ch1 = (tsbk >> 48) & 0xffff
|
|
ch2 = (tsbk >> 24) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
f2 = self.channel_id_to_frequency(ch2)
|
|
if f1 and f2:
|
|
self.secondary[ f1 ] = 1
|
|
self.secondary[ f2 ] = 1
|
|
sorted_freqs = collections.OrderedDict(sorted(self.secondary.items()))
|
|
self.secondary = sorted_freqs
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk39 secondary cc: rfid %x stid %d ch1 %x(%s) ch2 %x(%s)\n' %(rfid, stid, ch1, self.channel_id_to_string(ch1), ch2, self.channel_id_to_string(ch2)))
|
|
elif opcode == 0x3b: # network status
|
|
wacn = (tsbk >> 52) & 0xfffff
|
|
syid = (tsbk >> 40) & 0xfff
|
|
ch1 = (tsbk >> 24) & 0xffff
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
if f1:
|
|
self.ns_syid = syid
|
|
self.ns_wacn = wacn
|
|
self.ns_chan = f1
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3b net stat: wacn %x syid %x ch1 %x(%s)\n' %(wacn, syid, ch1, self.channel_id_to_string(ch1)))
|
|
elif opcode == 0x3c: # adjacent status
|
|
syid = (tsbk >> 56) & 0xfff
|
|
rfid = (tsbk >> 48) & 0xff
|
|
stid = (tsbk >> 40) & 0xff
|
|
ch1 = (tsbk >> 24) & 0xffff
|
|
table = (ch1 >> 12) & 0xf
|
|
f1 = self.channel_id_to_frequency(ch1)
|
|
if f1 and table in self.freq_table:
|
|
self.adjacent[f1] = 'rfid: %d stid:%d uplink:%f tbl:%d' % (rfid, stid, (f1 + self.freq_table[table]['offset']) / 1000000.0, table)
|
|
self.adjacent_data[f1] = {'rfid': rfid, 'stid':stid, 'uplink': f1 + self.freq_table[table]['offset'], 'table': table, 'sysid':syid}
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk3c adjacent: rfid %x stid %d ch1 %x(%s) sysid 0x%x\n' %(rfid, stid, ch1, self.channel_id_to_string(ch1), syid))
|
|
if table in self.freq_table:
|
|
sys.stderr.write('tsbk3c : %s %s\n' % (self.freq_table[table]['frequency'] , self.freq_table[table]['step'] ))
|
|
elif opcode == 0x20: # ACK_RESP_FNE
|
|
aiv = (tsbk >> 79) & 1
|
|
ex = (tsbk >> 78) & 1
|
|
addl = (tsbk >> 40) & 0xffffffff
|
|
wacn = None
|
|
sysid = None
|
|
srcaddr = None
|
|
if ex:
|
|
wacn = (addl > 12) & 0xfffff
|
|
sysid = addl & 0xfff
|
|
else:
|
|
srcaddr = addl & 0xffffff
|
|
target = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'ack_resp_fne', 'aiv': aiv, 'ex': ex, 'addl': addl, 'wacn': wacn, 'tsbk_sysid': sysid, 'source': self.mk_src_dict(srcaddr), 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk20 ack_resp_fne: aiv %d ex %d wacn %s sysid %s src %s\n' % (aiv, ex, wacn, sysid, srcaddr))
|
|
elif opcode == 0x27: # DENY_RESP
|
|
aiv = (tsbk >> 79) & 1
|
|
reason = (tsbk >> 64) & 0xff
|
|
addl = (tsbk >> 40) & 0xffffff
|
|
target = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'deny_resp', 'aiv': aiv, 'reason': reason, 'additional': addl, 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk27 deny_resp: aiv %d reason %02x additional %x target %d\n' % (aiv, reason, addl, target))
|
|
elif opcode == 0x28: # grp_aff_rsp
|
|
lg = (tsbk >> 79) & 0x01
|
|
gav = (tsbk >> 72) & 0x03
|
|
aga = (tsbk >> 56) & 0xffff
|
|
ga = (tsbk >> 40) & 0xffff
|
|
ta = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'grp_aff_resp', 'affiliation': ['local', 'global'][lg], 'group_aff_value': gav, 'announce_group': self.mk_tg_dict(aga), 'group': self.mk_tg_dict(ga), 'target': self.mk_src_dict(ta), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk28 grp_aff_resp: mfrid: 0x%x, gav: %d, aga: %d, ga: %d, ta: %d\n' % (mfrid, gav, aga, ga, ta))
|
|
elif opcode == 0x2a: # GRP_AFF_Q
|
|
target = (tsbk >> 40) & 0xffffff
|
|
source = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'grp_aff_q', 'source': self.mk_src_dict(source), 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk2a grp_aff_q: mfrid: 0x%x, target %d source %d\n' % (mfrid, target, source))
|
|
elif opcode == 0x2b: # LOC_REG_RESP
|
|
rv = (tsbk >> 72) & 3
|
|
ga = (tsbk >> 56) & 0xffff
|
|
rfss = (tsbk >> 48) & 0xff
|
|
siteid = (tsbk >> 40) & 0xff
|
|
target = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'loc_reg_resp', 'rv': rv, 'rfss': rfss, 'siteid': siteid, 'group': self.mk_tg_dict(ga), 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk2b loc_reg_resp: mfrid: 0x%x, rv %d group %d rfss 0x%x siteid 0x%x target %d\n' % (mfrid, rv, ga, rfss, siteid, target))
|
|
elif opcode == 0x2c: # U_REG_RESP
|
|
rv = (tsbk >> 76) & 1
|
|
sysid = (tsbk >> 64) & 0xfff
|
|
target = (tsbk >> 40) & 0xffffff
|
|
source = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'u_reg_resp', 'rv': rv, 'tsbk_sysid': sysid, 'source': self.mk_src_dict(source), 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk2c u_reg_resp: mfrid: 0x%x, rv %d sysid %x target %d source %d\n' % (mfrid, rv, sysid, target, source))
|
|
elif opcode == 0x2d: # U_REG_CMD
|
|
target = (tsbk >> 40) & 0xffffff
|
|
source = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'u_reg_cmd', 'source': self.mk_src_dict(source), 'target': self.mk_src_dict(target), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk2d u_reg_cmd: mfrid: 0x%x, target %d source %d\n' % (mfrid, target, source))
|
|
elif opcode == 0x2f: # U_DE_REG_ACK
|
|
wacn = (tsbk >> 52) & 0xfffff
|
|
sysid = (tsbk >> 40) & 0xfff
|
|
source = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'u_de_reg_ack', 'wacn': wacn, 'tsbk_sysid': sysid, 'source': self.mk_src_dict(source), 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk2f u_de_reg_ack: mfrid: 0x%x, wacn 0x%x sysid 0x%x source %d\n' % (mfrid, wacn, sysid, source))
|
|
|
|
elif opcode == 0x24: # EXT_FNCT_CMD
|
|
efclass = (tsbk >> 72) & 0xff
|
|
efoperand = (tsbk >> 64) & 0xff
|
|
efargs = (tsbk >> 40) & 0xffffff
|
|
target = (tsbk >> 16) & 0xffffff
|
|
d = {'cc_event': 'ext_fnct_cmd', 'mfrid': mfrid, 'efclass': efclass, 'efoperand': efoperand, 'efargs': self.mk_src_dict(efargs), 'target': target, 'opcode': opcode}
|
|
self.post_event(d)
|
|
if self.debug > 10:
|
|
sys.stderr.write('tsbk24 ext_fnct_cmd: efclass %d efoperand %d efargs %s sysid %s target %s\n' % (efclass, efoperand, efargs, sysid, target))
|
|
|
|
|
|
#else:
|
|
# sys.stderr.write('tsbk other %x\n' % opcode)
|
|
return updated
|
|
|
|
def hunt_cc(self, curr_time):
|
|
# return True if a tune request for frequency=self.trunk_cc should be issued
|
|
HUNT_HOLD_TIME = 8.0
|
|
#if self.cc_timeouts < 6:
|
|
# return False
|
|
if self.last_tsbk + HUNT_HOLD_TIME > time.time():
|
|
return False
|
|
if self.last_voice_time + HUNT_HOLD_TIME > time.time():
|
|
return False
|
|
if time.time() < self.next_hunt_cc:
|
|
return False
|
|
self.next_hunt_cc = time.time() + HUNT_HOLD_TIME
|
|
self.cc_timeouts = 0
|
|
self.cc_list_index += 1
|
|
if self.cc_list_index >= len(self.cc_list):
|
|
self.cc_list_index = 0
|
|
self.trunk_cc = self.cc_list[self.cc_list_index]
|
|
sys.stderr.write('%f %s: cycling to next trunk_cc: %s\n' % (curr_time, self.sysname, self.trunk_cc))
|
|
if self.trunk_cc != self.last_trunk_cc:
|
|
self.last_trunk_cc = self.trunk_cc
|
|
if self.debug >=5:
|
|
sys.stderr.write('%f %s: control channel change: %f\n' % (curr_time, self.sysname, self.trunk_cc / 1000000.0))
|
|
return True
|
|
return True
|
|
|
|
def frequency_change_params(self, current_tgid, new_frequency, nac, new_slot, new_frequency_type, curr_time):
|
|
params = {
|
|
'freq': new_frequency,
|
|
'tgid': current_tgid,
|
|
'offset': self.offset,
|
|
'tag': self.get_tag(current_tgid),
|
|
'nac': nac,
|
|
'system': self.sysname,
|
|
'center_frequency': self.center_frequency,
|
|
'tdma': new_slot,
|
|
'wacn': self.ns_wacn,
|
|
'sysid': self.ns_syid,
|
|
'srcaddr': self.current_srcaddr,
|
|
'grpaddr': self.current_grpaddr,
|
|
'alg': self.current_alg,
|
|
'algid': self.current_algid,
|
|
'channel_type': new_frequency_type,
|
|
'keyid': self.current_keyid,
|
|
'prio': self.get_prio(current_tgid),
|
|
'tag_color': self.get_tag_color(current_tgid),
|
|
'srcaddr_color': self.get_unit_id_color(self.current_srcaddr),
|
|
'srcaddr_tag': self.get_unit_id_tag(self.current_srcaddr),
|
|
'effective_time': curr_time }
|
|
return params
|
|
|
|
class rx_ctl (object):
|
|
def __init__(self, debug=0, frequency_set=None, conf_file=None, logfile_workers=None, send_event=None):
|
|
class _states(object):
|
|
ACQ = 0
|
|
CC = 1
|
|
TO_VC = 2
|
|
VC = 3
|
|
self.states = _states
|
|
|
|
self.current_state = self.states.CC
|
|
self.trunked_systems = {}
|
|
self.frequency_set = frequency_set
|
|
self.debug = debug
|
|
self.tgid_hold = None
|
|
self.tgid_hold_until = time.time()
|
|
self.hold_mode = False
|
|
self.TGID_HOLD_TIME = 2.0 # TODO: make more configurable
|
|
self.TGID_SKIP_TIME = 1.0 # TODO: make more configurable
|
|
self.current_nac = None
|
|
self.current_id = 0
|
|
self.current_tgid = None
|
|
self.current_slot = None
|
|
self.TSYS_HOLD_TIME = 3.0 # TODO: make more configurable
|
|
self.wait_until = time.time()
|
|
self.configs = {}
|
|
self.nacs = []
|
|
self.logfile_workers = logfile_workers
|
|
self.active_talkgroups = {}
|
|
self.working_frequencies = {}
|
|
self.xor_cache = {}
|
|
self.last_garbage_collect = 0
|
|
self.last_command = {'command': None, 'time': time.time()}
|
|
if self.logfile_workers:
|
|
self.input_rate = self.logfile_workers[0]['demod'].input_rate
|
|
self.enabled_nacs = None
|
|
self.next_status_png = time.time()
|
|
self.send_event = send_event
|
|
self.status_msg = ''
|
|
self.next_hunt_time = time.time()
|
|
|
|
if conf_file:
|
|
if conf_file.endswith('.tsv'):
|
|
self.build_config_tsv(conf_file)
|
|
elif conf_file.endswith('.json'):
|
|
self.build_config_json(conf_file)
|
|
else:
|
|
self.build_config(conf_file)
|
|
self.nacs = [int (x) for x in self.configs.keys()]
|
|
self.current_nac = self.find_next_tsys()
|
|
self.current_state = self.states.CC
|
|
|
|
tsys = self.trunked_systems[self.current_nac]
|
|
|
|
if self.logfile_workers and tsys.modulation == 'c4fm':
|
|
for worker in self.logfile_workers:
|
|
worker['demod'].connect_chain('fsk4')
|
|
|
|
self.set_frequency({
|
|
'freq': tsys.trunk_cc,
|
|
'channel_type': 'cc',
|
|
'tgid': None,
|
|
'offset': tsys.offset,
|
|
'tag': "",
|
|
'nac': self.current_nac,
|
|
'system': tsys.sysname,
|
|
'center_frequency': tsys.center_frequency,
|
|
'tdma': None,
|
|
'wacn': None,
|
|
'sysid': None,
|
|
'prio': 0,
|
|
'tag_color': None })
|
|
|
|
def build_config_json(self, conf_file):
|
|
d = json.loads(open(conf_file).read())
|
|
chans = [x for x in d['channels'] if x['active'] and x['trunked']]
|
|
self.configs = { chan['nac']: {'cclist':chan['cclist'],
|
|
'offset':0,
|
|
'blacklist': {int(tgid):None for tgid in chan['blacklist']},
|
|
'whitelist': {int(tgid):None for tgid in chan['whitelist']},
|
|
'sysname': chan['name'],
|
|
'center_frequency': chan['frequency'],
|
|
'modulation': chan['demod_type'],
|
|
'tgid_map': {int(tgid): chan['tgids'][tgid] for tgid in chan['tgids'].keys()}}
|
|
for chan in chans}
|
|
for nac in self.configs.keys():
|
|
self.add_trunked_system(nac)
|
|
|
|
def set_frequency(self, params):
|
|
frequency = params['freq']
|
|
if frequency and self.frequency_set:
|
|
self.frequency_set(params)
|
|
|
|
def enable_status(self, s):
|
|
if self.debug >= 10:
|
|
sys.stderr.write('rx_ctl: enable_status: %s\n' % s)
|
|
nacs = s.split(',')
|
|
if s and len(nacs):
|
|
nacs = [int(x) for x in nacs]
|
|
else:
|
|
sys.stderr.write('cannot disable all NACs - request ignored\n')
|
|
return
|
|
self.enabled_nacs = nacs
|
|
|
|
def add_trunked_system(self, nac):
|
|
assert nac not in self.trunked_systems # duplicate nac not allowed
|
|
cfg = None
|
|
if nac in self.configs:
|
|
cfg = self.configs[nac]
|
|
self.trunked_systems[nac] = trunked_system(debug = self.debug, config=cfg, send_event=self.send_event, nac=nac)
|
|
|
|
def build_config_tsv(self, tsv_filename):
|
|
self.setup_config(load_tsv(tsv_filename))
|
|
|
|
def build_config(self, config_filename):
|
|
import ConfigParser
|
|
config = ConfigParser.ConfigParser()
|
|
config.read(config_filename)
|
|
configs = {}
|
|
for section in config.sections():
|
|
nac = int(config.get(section, 'nac'), 0) # nac required
|
|
assert nac != 0 # nac=0 not allowed
|
|
assert nac not in configs # duplicate nac not allowed
|
|
configs[nac] = {}
|
|
for option in config.options(section):
|
|
configs[nac][option] = config.get(section, option).lower()
|
|
configs[nac]['sysname'] = section
|
|
self.setup_config(configs)
|
|
|
|
def reload_tags(self, nac):
|
|
if nac not in self.trunked_systems.keys():
|
|
return
|
|
tsys = self.trunked_systems[nac]
|
|
tgid_tags_file = self.configs[nac]['tgid_tags_file']
|
|
new_reg = id_registry()
|
|
read_tags_file(tgid_tags_file, new_reg)
|
|
tsys.tgid_map = new_reg
|
|
sys.stderr.write('reloaded %s nac 0x%x\n' % (tgid_tags_file, nac))
|
|
unit_id_tags_file = self.configs[nac]['unit_id_tags_file']
|
|
if unit_id_tags_file is None:
|
|
return
|
|
new_reg = id_registry()
|
|
read_tags_file(unit_id_tags_file, new_reg)
|
|
tsys.unit_id_map = new_reg
|
|
sys.stderr.write('reloaded %s nac 0x%x\n' % (unit_id_tags_file, nac))
|
|
|
|
def add_default_config(self, nac, cclist=[], offset=0, whitelist=None, blacklist={}, tgid_map=None, unit_id_map=None,sysname=None, center_frequency=None, modulation='cqpsk'):
|
|
if nac in self.configs.keys():
|
|
return
|
|
if nac not in self.trunked_systems.keys():
|
|
return
|
|
tsys = self.trunked_systems[nac]
|
|
if not tsys.rfss_chan:
|
|
return
|
|
if not tsys.ns_chan:
|
|
return
|
|
if tsys.ns_wacn < 0:
|
|
return
|
|
if tsys.ns_syid < 0:
|
|
return
|
|
if not sysname:
|
|
sysname = 'NAC 0x%x' % nac
|
|
if not cclist:
|
|
cclist = [tsys.rfss_chan]
|
|
cclist.extend(tsys.secondary.keys())
|
|
tsys.cc_list = cclist
|
|
self.configs[nac] = {'cclist':cclist, 'offset':offset, 'whitelist':whitelist, 'blacklist':blacklist, 'tgid_map':tgid_map, 'unit_id_map': unit_id_map, 'sysname': sysname, 'center_frequency': center_frequency, 'modulation':modulation}
|
|
self.current_nac = nac
|
|
self.current_state = self.states.CC
|
|
if nac not in self.nacs:
|
|
self.nacs.append(nac)
|
|
|
|
def setup_config(self, configs):
|
|
self.configs = make_config(configs)
|
|
for nac in self.configs.keys():
|
|
self.add_trunked_system(nac)
|
|
|
|
def find_next_tsys(self):
|
|
wrap = 0
|
|
while True:
|
|
self.current_id += 1
|
|
if self.current_id >= len(self.nacs):
|
|
if wrap:
|
|
break
|
|
self.current_id = 0
|
|
wrap = 1
|
|
if self.enabled_nacs is not None and self.nacs[self.current_id] not in self.enabled_nacs:
|
|
continue
|
|
return self.nacs[self.current_id]
|
|
return self.nacs[0] ## should not occur
|
|
|
|
def to_json(self):
|
|
current_time = time.time()
|
|
d = {'json_type': 'trunk_update'}
|
|
for nac in self.trunked_systems.keys():
|
|
d[nac] = self.trunked_systems[nac].to_dict()
|
|
if nac in self.configs.keys() and 'tgid_tags_file' in self.configs[nac]:
|
|
d[nac]['tgid_tags_file'] = self.configs[nac]['tgid_tags_file']
|
|
if nac in self.configs.keys() and 'unit_id_tags_file' in self.configs[nac]:
|
|
d[nac]['unit_id_tags_file'] = self.configs[nac]['unit_id_tags_file']
|
|
d['data'] = {'last_command': self.last_command['command'],
|
|
'last_command_time': int(self.last_command['time'] - current_time),
|
|
'tgid_hold': self.tgid_hold,
|
|
'tgid_hold_until': int(self.tgid_hold_until - current_time),
|
|
'hold_mode': self.hold_mode}
|
|
d['time'] = current_time
|
|
return json.dumps(d)
|
|
|
|
def make_status_png(self):
|
|
PNG_UPDATE_INTERVAL = 1.0
|
|
output_file = '../www/images/status.png'
|
|
tmp_output_file = '../www/images/tmp-status.png'
|
|
if time.time() < self.next_status_png:
|
|
return
|
|
self.next_status_png = time.time() + PNG_UPDATE_INTERVAL
|
|
status_str = 'OP25-hls hacks (c) Copyright 2020, 2021, KA1RBI\n'
|
|
status_str += self.status_msg
|
|
status_str += self.to_string()
|
|
status = status_str.split('\n')
|
|
status = [s for s in status if not s.startswith('tbl-id')]
|
|
create_image(status, imgfile=tmp_output_file, bgcolor="#c0c0c0", windowsize=(640,480))
|
|
if not os.access(tmp_output_file, os.R_OK):
|
|
return
|
|
os.rename(tmp_output_file, output_file)
|
|
|
|
def frequency_tracking_expire(self):
|
|
for nac in self.trunked_systems.keys():
|
|
self.trunked_systems[nac].frequency_tracking_expire()
|
|
|
|
def in_voice_state(self):
|
|
rc = self.current_state == self.states.TO_VC or self.current_state == self.states.VC
|
|
return rc
|
|
|
|
def dump_tgids(self):
|
|
for nac in self.trunked_systems.keys():
|
|
self.trunked_systems[nac].dump_tgids()
|
|
|
|
def to_string(self):
|
|
s = ''
|
|
for nac in self.trunked_systems:
|
|
s += '\n====== NAC 0x%x ====== %s ======\n' % (nac, self.trunked_systems[nac].sysname)
|
|
s += self.trunked_systems[nac].to_string()
|
|
return s
|
|
|
|
def process_qmsg(self, msg):
|
|
self.frequency_tracking_expire()
|
|
if self.send_event is not None:
|
|
self.send_event(None) # periodically sends general status info
|
|
mtype = msg.type()
|
|
updated = 0
|
|
curr_time = time.time()
|
|
msgtext = msg.to_string()
|
|
aa55 = get_ordinals(msgtext[:2])
|
|
if mtype >= 0 or mtype in [-1, -3, -5, -6, -7]:
|
|
assert aa55 == 0xaa55
|
|
msgq_id = get_ordinals(msgtext[2:4])
|
|
msgtext = msgtext[4:]
|
|
else:
|
|
assert aa55 != 0xaa55
|
|
msgq_id = None
|
|
if mtype == -7: # P25 phase 1 link control
|
|
nac = get_ordinals(msgtext[:2])
|
|
msgtext = msgtext[2:]
|
|
msg = get_ordinals(msgtext)
|
|
if self.debug > 10:
|
|
sys.stderr.write("%f process_qmsg: LC info: %x\n" % (time.time(), msg))
|
|
opcode = (msg >> 64) & 0x3f
|
|
if opcode == 40: # rfss
|
|
lra = (msg >> 56) & 0xff
|
|
ch1 = (msg >> 40) & 0xffff
|
|
rfss = (msg >> 32) & 0xff
|
|
stid = (msg >> 24) & 0xff
|
|
ch2 = (msg >> 8) & 0xffff
|
|
ssclass = msg & 0xff
|
|
if self.debug > 10:
|
|
sys.stderr.write("%f p25p1 LC: LCRSBX: nac 0x%x lra 0x%x ch1 %x rfss 0x%x stid 0x%x ch2 %x ssclass 0x%x\n" %(time.time(), nac, lra, ch1, rfss, stid, ch2, ssclass))
|
|
elif opcode == 39: # adjacent
|
|
lra = (msg >> 56) & 0xff
|
|
ch1 = (msg >> 40) & 0xffff
|
|
rfss = (msg >> 32) & 0xff
|
|
stid = (msg >> 24) & 0xff
|
|
ch2 = (msg >> 8) & 0xffff
|
|
flags = msg & 0xff
|
|
if self.debug > 10:
|
|
sys.stderr.write("%f p25p1 LC: LCASBX: nac 0x%x lra 0x%x ch1 %x rfss 0x%x stid 0x%x ch2 %x flags 0x%x\n" %(time.time(), nac, lra, ch1, rfss, stid, ch2, flags))
|
|
else:
|
|
if self.debug > 0:
|
|
sys.stderr.write("%f p25p1 LC: unhandled LCO: nac 0x%x 0x%x\n" % (time.time(), nac, opcode))
|
|
return
|
|
elif mtype == -3: # P25 call signalling data
|
|
if self.debug > 10:
|
|
sys.stderr.write("%f process_qmsg: P25 info: %s\n" % (time.time(), msgtext))
|
|
js = json.loads(msgtext)
|
|
nac = js['nac']
|
|
if nac != self.current_nac:
|
|
sys.stderr.write('warning: nac mismatch: nac %x current_nac %x js %s\n' % (nac, self.current_nac, msgtext))
|
|
# return
|
|
if nac not in self.trunked_systems.keys():
|
|
return
|
|
tsys = self.trunked_systems[nac]
|
|
if self.current_state != self.states.CC:
|
|
tsys.last_voice_time = curr_time
|
|
if 'srcaddr' in js.keys():
|
|
tsys.current_srcaddr = js['srcaddr']
|
|
if 'grpaddr' in js.keys():
|
|
tsys.current_grpaddr = js['grpaddr']
|
|
if 'algid' in js.keys():
|
|
tsys.current_algid = js['algid']
|
|
if 'alg' in js.keys():
|
|
tsys.current_alg = js['alg']
|
|
if 'keyid' in js.keys():
|
|
tsys.current_keyid = js['keyid']
|
|
return
|
|
elif mtype == -2: # request from gui
|
|
cmd = msgtext
|
|
if self.debug > 10:
|
|
sys.stderr.write('process_qmsg: command: %s\n' % cmd)
|
|
self.update_state(cmd, curr_time, int(msg.arg1())) # self.update_state(cmd, curr_time)
|
|
return
|
|
elif mtype == -1: # timeout
|
|
if self.debug > 0:
|
|
sys.stderr.write('%f process_data_unit timeout, channel %s\n' % (time.time(), msgq_id))
|
|
self.update_state('timeout', curr_time)
|
|
if self.logfile_workers:
|
|
self.logging_scheduler(curr_time)
|
|
return
|
|
elif mtype == -6: # p25 tdma cc
|
|
# nac is always 1st two bytes
|
|
nac = get_ordinals(msgtext[:2])
|
|
msgtext = msgtext[2:]
|
|
if self.debug > 1:
|
|
sys.stderr.write('tdma_cc message nac 0x%x text 0x%x len %d\n' % (nac, get_ordinals(msgtext), len(msgtext)))
|
|
if nac not in self.trunked_systems.keys():
|
|
sys.stderr.write('tdma_cc received from unexpected NAC 0x%x\n' % nac)
|
|
return
|
|
tsys = self.trunked_systems[nac]
|
|
tsys.decode_tdma_cc(msgtext[1:])
|
|
return
|
|
elif mtype < 0:
|
|
sys.stderr.write('unknown message type %d\n' % (mtype))
|
|
return
|
|
s = msgtext
|
|
# nac is always 1st two bytes
|
|
nac = get_ordinals(s[:2])
|
|
if nac == 0xffff:
|
|
sys.stderr.write('received invalid nac 0xffff, mtype %d msgq_id %s\n' % (mtype, msgq_id))
|
|
return
|
|
s = s[2:]
|
|
if self.debug > 10:
|
|
sys.stderr.write('nac %x type %d at %f state %d len %d\n' %(nac, mtype, time.time(), self.current_state, len(s)))
|
|
if (mtype == 7 or mtype == 12) and nac not in self.trunked_systems:
|
|
if not self.configs:
|
|
# TODO: allow whitelist/blacklist rather than blind automatic-add
|
|
self.add_trunked_system(nac)
|
|
else:
|
|
sys.stderr.write("%f NAC %x not configured\n" % (time.time(), nac))
|
|
return
|
|
if nac not in self.trunked_systems.keys():
|
|
sys.stderr.write('received unknown nac 0x%x, mtype %d len configs %d msgq_id %d\n' % (nac, mtype, len(self.configs.keys()), msgq_id))
|
|
return
|
|
tsys = self.trunked_systems[nac]
|
|
if mtype == 0 or mtype == 5 or mtype == 10: # HDU or LDU1 or LDU2 i.e. voice
|
|
if self.current_state != self.states.CC:
|
|
tsys.last_voice_time = curr_time
|
|
elif mtype == 7: # trunk: TSBK
|
|
t = get_ordinals(s)
|
|
updated += tsys.decode_tsbk(t)
|
|
elif mtype == 12: # trunk: MBT
|
|
s1 = s[:10] # header without crc
|
|
s2 = s[12:]
|
|
header = get_ordinals(s1)
|
|
mbt_data = get_ordinals(s2)
|
|
|
|
fmt = (header >> 72) & 0x1f
|
|
sap = (header >> 64) & 0x3f
|
|
src = (header >> 48) & 0xffffff
|
|
if fmt != 0x17: # only Extended Format MBT presently supported
|
|
return
|
|
|
|
opcode = (header >> 16) & 0x3f
|
|
if self.debug > 10:
|
|
sys.stderr.write('type %d at %f state %d len %d/%d opcode %x [%x/%x]\n' %(mtype, time.time(), self.current_state, len(s1), len(s2), opcode, header,mbt_data))
|
|
updated += tsys.decode_mbt_data(opcode, src, header << 16, mbt_data << 32)
|
|
|
|
self.make_status_png()
|
|
|
|
#if nac != self.current_nac:
|
|
# if self.debug > 10: # this is occasionally expected if cycling between different tsys
|
|
# cnac = self.current_nac
|
|
# if cnac is None:
|
|
# cnac = 0
|
|
# sys.stderr.write("%f received NAC %x does not match expected NAC %x\n" % (time.time(), nac, cnac))
|
|
# return
|
|
|
|
if self.logfile_workers:
|
|
self.logging_scheduler(curr_time)
|
|
return
|
|
|
|
if updated:
|
|
self.update_state('update', curr_time)
|
|
else:
|
|
self.update_state('duid%d' % mtype, curr_time)
|
|
|
|
def find_available_worker(self):
|
|
for worker in self.logfile_workers:
|
|
if not worker['active']:
|
|
worker['active'] = True
|
|
return worker
|
|
return None
|
|
|
|
def free_frequency(self, frequency, curr_time):
|
|
assert not self.working_frequencies[frequency]['tgids']
|
|
self.working_frequencies[frequency]['worker']['demod'].set_relative_frequency(0)
|
|
self.working_frequencies[frequency]['worker']['active'] = False
|
|
self.working_frequencies.pop(frequency)
|
|
sys.stderr.write('%f release worker frequency %d\n' % (curr_time, frequency))
|
|
|
|
def free_talkgroup(self, frequency, tgid, curr_time):
|
|
decoder = self.working_frequencies[frequency]['worker']['decoder']
|
|
tdma_slot = self.working_frequencies[frequency]['tgids'][tgid]['tdma_slot']
|
|
index = tdma_slot
|
|
if tdma_slot is None:
|
|
index = 0
|
|
self.working_frequencies[frequency]['tgids'].pop(tgid)
|
|
sys.stderr.write('%f release tgid %d frequency %d\n' % (curr_time, tgid, frequency))
|
|
|
|
def logging_scheduler(self, curr_time):
|
|
tsys = self.trunked_systems[self.current_nac]
|
|
for tgid in tsys.get_updated_talkgroups(curr_time):
|
|
frequency = tsys.talkgroups[tgid]['frequency']
|
|
tdma_slot = tsys.talkgroups[tgid]['tdma_slot']
|
|
# see if this tgid active on any other freq(s)
|
|
other_freqs = [f for f in self.working_frequencies if f != frequency and tgid in self.working_frequencies[f]['tgids']]
|
|
if other_freqs:
|
|
sys.stderr.write('%f tgid %d slot %s frequency %d found on other frequencies %s\n' % (curr_time, tgid, tdma_slot, frequency, ','.join(['%s' % f for f in other_freqs])))
|
|
for f in other_freqs:
|
|
self.free_talkgroup(f, tgid, curr_time)
|
|
if not self.working_frequencies[f]['tgids']:
|
|
self.free_frequency(f, curr_time)
|
|
diff = abs(tsys.center_frequency - frequency)
|
|
if diff > self.input_rate/2:
|
|
#sys.stderr.write('%f request for frequency %d tgid %d failed, offset %d exceeds maximum %d\n' % (curr_time, frequency, tgid, diff, self.input_rate/2))
|
|
continue
|
|
|
|
update = True
|
|
if frequency in self.working_frequencies:
|
|
tgids = self.working_frequencies[frequency]['tgids']
|
|
if tgid in tgids:
|
|
if tgids[tgid]['tdma_slot'] == tdma_slot:
|
|
update = False
|
|
else:
|
|
sys.stderr.write('%f slot switch %s was %s tgid %d frequency %d\n' % (curr_time, tdma_slot, tgids[tgid]['tdma_slot'], tgid, frequency))
|
|
worker = self.working_frequencies[frequency]['worker']
|
|
else:
|
|
#active_tdma_slots = [tgids[tg]['tdma_slot'] for tg in tgids]
|
|
sys.stderr.write("%f new tgid %d slot %s arriving on already active frequency %d\n" % (curr_time, tgid, tdma_slot, frequency))
|
|
previous_tgid = [id for id in tgids if tgids[id]['tdma_slot'] == tdma_slot]
|
|
assert len(previous_tgid) == 1 ## check for logic error
|
|
self.free_talkgroup(frequency, previous_tgid[0], curr_time)
|
|
worker = self.working_frequencies[frequency]['worker']
|
|
else:
|
|
worker = self.find_available_worker()
|
|
if worker is None:
|
|
sys.stderr.write('*** error, no free demodulators, freq %d tgid %d\n' % (frequency, tgid))
|
|
continue
|
|
self.working_frequencies[frequency] = {'tgids' : {}, 'worker': worker}
|
|
worker['demod'].set_relative_frequency(tsys.center_frequency - frequency)
|
|
sys.stderr.write('%f starting worker frequency %d tg %d slot %s\n' % (curr_time, frequency, tgid, tdma_slot))
|
|
self.working_frequencies[frequency]['tgids'][tgid] = {'updated': curr_time, 'tdma_slot': tdma_slot}
|
|
if not update:
|
|
continue
|
|
filename = 'tgid-%d-%f.wav' % (tgid, curr_time)
|
|
sys.stderr.write('%f update frequency %d tg %d slot %s file %s\n' % (curr_time, frequency, tgid, tdma_slot, filename))
|
|
# set demod speed, decoder slot, output file name
|
|
demod = worker['demod']
|
|
decoder = worker['decoder']
|
|
symbol_rate = 4800
|
|
|
|
if tdma_slot is None:
|
|
index = 0
|
|
else:
|
|
index = tdma_slot
|
|
symbol_rate = 6000
|
|
xorhash = '%x%x%x' % (self.current_nac, tsys.ns_syid, tsys.ns_wacn)
|
|
if xorhash not in self.xor_cache:
|
|
self.xor_cache[xorhash] = lfsr.p25p2_lfsr(self.current_nac, tsys.ns_syid, tsys.ns_wacn).xor_chars
|
|
decoder.set_xormask(self.xor_cache[xorhash], xorhash, index=index)
|
|
decoder.set_nac(self.current_nac, index=index)
|
|
demod.set_omega(symbol_rate)
|
|
decoder.set_output(filename, index=index)
|
|
|
|
# garbage collection
|
|
if self.last_garbage_collect + 1 > curr_time:
|
|
return
|
|
self.last_garbage_collect = curr_time
|
|
|
|
gc_frequencies = []
|
|
gc_tgids = []
|
|
for frequency in self.working_frequencies:
|
|
tgids = self.working_frequencies[frequency]['tgids']
|
|
inactive_tgids = [[frequency, tgid] for tgid in tgids if tgids[tgid]['updated'] + self.TGID_HOLD_TIME < curr_time]
|
|
if len(inactive_tgids) == len(tgids):
|
|
gc_frequencies += [frequency]
|
|
gc_tgids += inactive_tgids
|
|
for frequency, tgid in gc_tgids: # expire talkgroups
|
|
self.free_talkgroup(frequency, tgid, curr_time)
|
|
for frequency in gc_frequencies: # expire working frequencies
|
|
self.free_frequency(frequency, curr_time)
|
|
|
|
def update_state(self, command, curr_time, cmd_data = 0): # def update_state(self, command, curr_time):
|
|
if not self.configs:
|
|
return # run in "manual mode" if no conf
|
|
|
|
if type(command) is not str and isinstance(command, bytes):
|
|
command = command.decode()
|
|
|
|
nac = self.current_nac
|
|
tsys = self.trunked_systems[nac]
|
|
|
|
new_frequency = None
|
|
new_tgid = None
|
|
new_state = None
|
|
new_nac = None
|
|
new_slot = None
|
|
new_frequency_type = None
|
|
|
|
if command == 'timeout':
|
|
if self.current_state == self.states.CC:
|
|
if self.debug > 0:
|
|
sys.stderr.write("%f control channel timeout, current CC %d\n" % (time.time(), tsys.trunk_cc))
|
|
tsys.cc_timeouts += 1
|
|
elif self.current_state != self.states.CC and tsys.last_voice_time + 1.0 < curr_time:
|
|
if self.debug > 0:
|
|
sys.stderr.write("%f voice timeout\n" % time.time())
|
|
if self.hold_mode is False:
|
|
self.current_tgid = None
|
|
tsys.current_srcaddr = 0
|
|
new_state = self.states.CC
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
elif command == 'update':
|
|
if self.current_state == self.states.CC:
|
|
desired_tgid = None
|
|
if (self.tgid_hold is not None) and (self.tgid_hold_until > curr_time):
|
|
if self.debug > 1:
|
|
sys.stderr.write("%f hold active tg(%s)\n" % (time.time(), self.tgid_hold))
|
|
desired_tgid = self.tgid_hold
|
|
elif (self.tgid_hold is not None) and (self.hold_mode == False):
|
|
self.tgid_hold = None
|
|
new_frequency, new_tgid, tdma_slot, srcaddr = tsys.find_talkgroup(curr_time, tgid=desired_tgid, hold=self.hold_mode)
|
|
if new_frequency:
|
|
new_frequency_type = 'vc'
|
|
if self.debug > 0:
|
|
tslot = tdma_slot if tdma_slot is not None else '-'
|
|
sys.stderr.write("%f voice update: tg(%s), freq(%s), slot(%s), prio(%d)\n" % (time.time(), new_tgid, new_frequency, tslot, tsys.get_prio(new_tgid)))
|
|
new_state = self.states.TO_VC
|
|
self.current_tgid = new_tgid
|
|
tsys.current_srcaddr = srcaddr
|
|
self.tgid_hold = new_tgid
|
|
self.tgid_hold_until = max(curr_time + self.TGID_HOLD_TIME, self.tgid_hold_until)
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
new_slot = tdma_slot
|
|
elif 0: # # # # # else: # check for priority tgid preemption
|
|
new_frequency, new_tgid, tdma_slot, srcaddr = tsys.find_talkgroup(tsys.talkgroups[self.current_tgid]['time'], tgid=self.current_tgid, hold=self.hold_mode)
|
|
if new_tgid != self.current_tgid:
|
|
if self.debug > 0:
|
|
tslot = tdma_slot if tdma_slot is not None else '-'
|
|
sys.stderr.write("%f voice preempt: tg(%s), freq(%s), slot(%s), prio(%d)\n" % (time.time(), new_tgid, new_frequency, tslot, tsys.get_prio(new_tgid)))
|
|
new_frequency_type = 'vc'
|
|
new_state = self.states.TO_VC
|
|
self.current_tgid = new_tgid
|
|
tsys.current_srcaddr = srcaddr
|
|
self.tgid_hold = new_tgid
|
|
self.tgid_hold_until = max(curr_time + self.TGID_HOLD_TIME, self.tgid_hold_until)
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
new_slot = tdma_slot
|
|
else:
|
|
new_frequency = None
|
|
elif command == 'duid3' or command == 'tdma_duid3': # termination, no channel release
|
|
if self.current_state != self.states.CC:
|
|
self.tgid_hold = self.current_tgid
|
|
self.tgid_hold_until = max(curr_time + self.TGID_HOLD_TIME, self.tgid_hold_until)
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
elif command == 'duid15' or command == 'tdma_duid15': # termination with channel release
|
|
if self.current_state != self.states.CC:
|
|
if self.debug > 1:
|
|
sys.stderr.write("%f %s, tg(%d)\n" % (time.time(), command, self.current_tgid))
|
|
tsys.current_srcaddr = 0
|
|
tsys.current_grpaddr = 0
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
self.tgid_hold = self.current_tgid
|
|
self.tgid_hold_until = max(curr_time + self.TGID_HOLD_TIME, self.tgid_hold_until)
|
|
if self.hold_mode is False:
|
|
self.current_tgid = None
|
|
new_state = self.states.CC
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
elif command == 'duid0' or command == 'duid5' or command == 'duid10' or command == 'tdma_duid5':
|
|
if self.current_state == self.states.TO_VC:
|
|
new_state = self.states.VC
|
|
self.tgid_hold = self.current_tgid
|
|
self.tgid_hold_until = max(curr_time + self.TGID_HOLD_TIME, self.tgid_hold_until)
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
elif command == 'duid7' or command == 'duid12': # tsbk/pdu should never arrive here...
|
|
pass
|
|
elif command == 'hold':
|
|
self.last_command = {'command': command, 'time': curr_time}
|
|
if self.hold_mode:
|
|
new_hold_mode = False
|
|
else:
|
|
new_hold_mode = True
|
|
if new_hold_mode and (cmd_data is None or cmd_data < 1):
|
|
if self.debug > 0:
|
|
sys.stderr.write ('%f set hold failed, unable to determine TGID\n' % (time.time()))
|
|
new_hold_mode = False
|
|
if new_hold_mode is False: # unset hold
|
|
self.current_tgid = None
|
|
self.tgid_hold = None
|
|
self.tgid_hold_until = curr_time
|
|
self.hold_mode = new_hold_mode
|
|
else: # set hold
|
|
self.tgid_hold = cmd_data
|
|
self.tgid_hold_until = curr_time + 86400 * 10000
|
|
self.hold_mode = new_hold_mode
|
|
if self.debug > 0:
|
|
sys.stderr.write ('%f set hold tg(%s) until %f\n' % (time.time(), self.tgid_hold, self.tgid_hold_until))
|
|
if self.debug > 0:
|
|
sys.stderr.write ('%f set hold tg(%s) until %f mode %s current tgid %s\n' % (time.time(), self.tgid_hold, self.tgid_hold_until, self.hold_mode, self.current_tgid))
|
|
if self.current_tgid != self.tgid_hold:
|
|
self.current_tgid = self.tgid_hold
|
|
self.current_srcaddr = 0
|
|
self.current_grpaddr = 0
|
|
self.current_alg = ""
|
|
self.current_algid = 128
|
|
self.current_keyid = 0
|
|
new_state = self.states.CC
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
elif command == 'set_hold':
|
|
self.last_command = {'command': command, 'time': curr_time}
|
|
if self.current_tgid:
|
|
self.tgid_hold = self.current_tgid
|
|
self.tgid_hold_until = curr_time + 86400 * 10000
|
|
self.hold_mode = True
|
|
if self.debug > 0:
|
|
sys.stderr.write ('%f set hold until %f\n' % (time.time(), self.tgid_hold_until))
|
|
elif command == 'unset_hold':
|
|
self.last_command = {'command': command, 'time': curr_time}
|
|
if self.current_tgid:
|
|
if self.debug > 0:
|
|
sys.stderr.write ('%f clear hold tg(%s)\n' % (time.time(), self.tgid_hold))
|
|
self.current_tgid = None
|
|
self.tgid_hold = None
|
|
self.tgid_hold_until = curr_time
|
|
self.hold_mode = False
|
|
elif command == 'skip' or command == 'lockout':
|
|
self.last_command = {'command': command, 'time': curr_time}
|
|
if self.current_tgid:
|
|
end_time = None
|
|
if command == 'skip':
|
|
end_time = curr_time + self.TGID_SKIP_TIME
|
|
tsys.add_blacklist(self.current_tgid, end_time=end_time)
|
|
self.current_tgid = None
|
|
self.tgid_hold = None
|
|
self.tgid_hold_until = curr_time
|
|
self.hold_mode = False
|
|
tsys.current_srcaddr = 0
|
|
if self.current_state != self.states.CC:
|
|
new_state = self.states.CC
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
else:
|
|
sys.stderr.write('update_state: unknown command: %s\n' % command)
|
|
assert 0 == 1
|
|
|
|
if new_frequency is not None and tsys.trunk_cc != tsys.rfss_chan:
|
|
sys.stderr.write('warning: trunk control channel frequency %f does not match rfss frequency %f\n' % (tsys.trunk_cc/1000000.0, tsys.rfss_chan/1000000.0))
|
|
|
|
hunted_cc = tsys.hunt_cc(curr_time)
|
|
|
|
if self.enabled_nacs is not None and self.current_nac not in self.enabled_nacs:
|
|
tsys.current_srcaddr = 0
|
|
tsys.current_grpaddr = 0
|
|
new_nac = self.find_next_tsys()
|
|
new_state = self.states.CC
|
|
elif self.current_state != self.states.CC and self.tgid_hold_until <= curr_time and self.hold_mode is False and new_state is None:
|
|
if self.debug > 1:
|
|
sys.stderr.write("%f release tg(%s)\n" % (time.time(), self.current_tgid))
|
|
self.tgid_hold = None
|
|
self.current_tgid = None
|
|
tsys.current_srcaddr = 0
|
|
tsys.current_grpaddr = 0
|
|
new_state = self.states.CC
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
elif self.wait_until <= curr_time and self.tgid_hold_until <= curr_time and self.hold_mode is False and new_state is None:
|
|
self.wait_until = curr_time + self.TSYS_HOLD_TIME
|
|
tsys.current_srcaddr = 0
|
|
tsys.current_grpaddr = 0
|
|
new_nac = self.find_next_tsys()
|
|
new_state = self.states.CC
|
|
|
|
if new_nac is not None:
|
|
nac = self.current_nac = new_nac
|
|
tsys = self.trunked_systems[nac]
|
|
new_frequency = tsys.trunk_cc
|
|
new_frequency_type = 'cc'
|
|
tsys.current_srcaddr = 0
|
|
tsys.current_grpaddr = 0
|
|
self.current_tgid = None
|
|
|
|
if new_frequency is not None:
|
|
params = tsys.frequency_change_params(self.current_tgid, new_frequency, nac, new_slot, new_frequency_type, curr_time)
|
|
self.status_msg = 'F %f TG %s %s at %s\n' % (params['freq'] / 1000000.0, params['tgid'], params['tag'], time.asctime())
|
|
self.set_frequency(params)
|
|
|
|
if new_state is not None:
|
|
self.current_state = new_state
|
|
|
|
def parallel_hunt_cc(self):
|
|
curr_time = time.time()
|
|
if curr_time < self.next_hunt_time:
|
|
return
|
|
self.next_hunt_time = curr_time + 1.0
|
|
for nac in self.trunked_systems.keys():
|
|
tsys = self.trunked_systems[nac]
|
|
rc = tsys.hunt_cc(curr_time)
|
|
if not rc:
|
|
continue
|
|
tgid = None
|
|
freq = tsys.trunk_cc
|
|
new_slot = None
|
|
new_frequency_type = 'cc'
|
|
params = tsys.frequency_change_params(tgid, freq, nac, new_slot, new_frequency_type, curr_time)
|
|
self.status_msg = 'F %f TG %s %s at %s\n' % (params['freq'] / 1000000.0, params['tgid'], params['tag'], time.asctime())
|
|
self.set_frequency(params)
|
|
|
|
def main():
|
|
q = 0x3a000012ae01013348704a54
|
|
rc = crc16(q,12)
|
|
sys.stderr.write('should be zero: %x\n' % rc)
|
|
assert rc == 0
|
|
|
|
q = 0x3a001012ae01013348704a54
|
|
rc = crc16(q,12)
|
|
sys.stderr.write('should be nonzero: %x\n' % rc)
|
|
assert rc != 0
|
|
|
|
t = trunked_system(debug=255)
|
|
q = 0x3a000012ae0101334870
|
|
t.decode_tsbk(q)
|
|
|
|
q = 0x02900031210020018e7c
|
|
t.decode_tsbk(q)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|