#!/usr/bin/env python # ############################################################################### # Copyright (C) 2016-2019 Cortney T. Buffington, N0MJS # GPS/Data - Copyright (C) 2021 Eric Craw, KF7EEL # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ############################################################################### # Python modules we need import sys from bitarray import bitarray from time import time from importlib import import_module # Twisted is pretty important, so I keep it separate from twisted.internet.protocol import Factory, Protocol from twisted.protocols.basic import NetstringReceiver from twisted.internet import reactor, task # Things we import from the main hblink module from hblink import HBSYSTEM, OPENBRIDGE, systems, hblink_handler, reportFactory, REPORT_OPCODES, mk_aliases from dmr_utils3.utils import bytes_3, int_id, get_alias from dmr_utils3 import decode, bptc, const import config import log from const import * import re from pathlib import Path # Stuff for socket reporting import pickle # REMOVE LATER from datetime import datetime # The module needs logging, but handlers, etc. are controlled by the parent import logging logger = logging.getLogger(__name__) import ast, os, time # Does anybody read this stuff? There's a PEP somewhere that says I should do this. __author__ = 'Eric Craw, KF7EEL' __copyright__ = 'Eric Craw, kf7eel@qsl.net' __credits__ = 'Colin Durbridge, G4EML, Steve Zingman, N4IRS; Mike Zingman, N4IRR; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT' __license__ = 'GNU GPLv3' __maintainer__ = 'Eric Craw, kf7eel@qsl.net' __email__ = 'kf7eel@qsl.net' def build_unit(CONFIG): UNIT = [] for i in CONFIG['SYSTEMS'].items(): if i[1]['ENABLED'] == True and i[1]['MODE'] != 'XLXPEER': # and i[0] not in exclude: UNIT.append(i[0]) return UNIT # Functions def data_que_check(): l=task.LoopingCall(data_que_send) l.start(1) def data_que_send(): #logger.info('Check SMS que') try: #logger.info(UNIT_MAP) for packet_file in os.listdir('/tmp/.hblink_data_que_ipsc/'): logger.info('Sending SMS') data_file = ast.literal_eval(os.popen('cat /tmp/.hblink_data_que_ipsc/' + str(packet_file)).read()) for i in data_file: #print(bytes.fromhex(str(i))) for d in UNIT: systems[d].send_system(bytes.fromhex(i)) os.system('rm /tmp/.hblink_data_que_ipsc/' + packet_file) except Exception as e: logger.info(e) def mmdvm_encapsulate(dst_id, src_id, peer_id, _seq, _slot, _call_type, _dtype_vseq, _stream_id, _dmr_data): signature = 'DMRD' # needs to be in bytes frame_type = 0x10 #bytes_2(int(10)) #print((frame_type)) dest_id = bytes_3(int(dst_id, 16)) # print((dest_id)) #print(ahex(dest_id)) source_id = bytes_3(int(src_id, 16)) via_id = bytes_4(int(peer_id, 16)) # print((source_id)) #print(ahex(via_id)) seq = int(_seq).to_bytes(1, 'big') #print(ahex(seq)) # Binary, 0 for 1, 1 for 2 slot = bitarray(str(_slot)) #print(slot) # binary, 0 for group, 1 for unit, bin(1) # print(_call_type) call_type = bitarray(str(_call_type)) #print(call_type) #0x00 for voice, 0x01 for voice sync, 0x10 for data #frame_type = int(16).to_bytes(1, 'big') frame_type = bitarray('10') #print(frame_type) # Observed to be always 7, int. Will be 6 for header #dtype_vseq = hex(int(_dtype_vseq)).encode() if _dtype_vseq == 6: dtype_vseq = bitarray('0110') if _dtype_vseq == 7: dtype_vseq = bitarray('0111') if _dtype_vseq == 3: dtype_vseq = bitarray('0011') # 9 digit integer in hex stream_id = bytes_4(_stream_id) #print(ahex(stream_id)) middle_guts = slot + call_type + frame_type + dtype_vseq #print(middle_guts) dmr_data = str(_dmr_data)[2:-1] #str(re.sub("b'|'", '', str(_dmr_data))) complete_packet = signature.encode() + seq + dest_id + source_id + via_id + middle_guts.tobytes() + stream_id + bytes.fromhex((dmr_data)) + bitarray('0000000000101111').tobytes()#bytes.fromhex(dmr_data) return complete_packet def dmr_encode(packet_list, _slot): send_seq = [] for i in packet_list: stitched_pkt = bptc.interleave_19696(bptc.encode_19696(i)) l_slot = bitarray('0111011100') #MS #sync_data = bitarray('110101011101011111110111011111111101011101010111') if _slot == 0: # TS1 - F7FDD5DDFD55 sync_data = bitarray('111101111111110111010101110111011111110101010101') if _slot == 1: #TS2 - D7557F5FF7F5 sync_data = bitarray('110101110101010101111111010111111111011111110101') # TS1 #sync_data = bitarray('111101111111110111010101110111011111110101010101') #TS2 #sync_data = bitarray('110101110101010101111111010111111111011111110101') r_slot = bitarray('1101110001') # Data sync? 110101011101011111110111011111111101011101010111 - D5D7F77FD757 new_pkt = ahex(stitched_pkt[:98] + l_slot + sync_data + r_slot + stitched_pkt[98:]) send_seq.append(new_pkt) return send_seq # Module gobal varaibles def config_reports(_config, _factory): if True: #_config['REPORTS']['REPORT']: def reporting_loop(logger, _server): logger.debug('(REPORT) Periodic reporting loop started') _server.send_config() _server.send_bridge() logger.info('(REPORT) HBlink TCP reporting server configured') report_server = _factory(_config) report_server.clients = [] reactor.listenTCP(_config['REPORTS']['REPORT_PORT'], report_server) reporting = task.LoopingCall(reporting_loop, logger, report_server) reporting.start(_config['REPORTS']['REPORT_INTERVAL']) return report_server class bridgeReportFactory(reportFactory): def send_bridge(self): serialized = pickle.dumps(BRIDGES, protocol=2) #.decode("utf-8", errors='ignore') self.send_clients(REPORT_OPCODES['BRIDGE_SND']+serialized) def send_bridgeEvent(self, _data): if isinstance(_data, str): _data = _data.decode('utf-8', error='ignore') self.send_clients(REPORT_OPCODES['BRDG_EVENT']+_data) class OBP(OPENBRIDGE): def __init__(self, _name, _config, _report): OPENBRIDGE.__init__(self, _name, _config, _report) def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data): pass class HBP(HBSYSTEM): def __init__(self, _name, _config, _report): HBSYSTEM.__init__(self, _name, _config, _report) def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data): pass #************************************************ # MAIN PROGRAM LOOP STARTS HERE #************************************************ if __name__ == '__main__': import argparse import sys import os import signal # Change the current directory to the location of the application os.chdir(os.path.dirname(os.path.realpath(sys.argv[0]))) # CLI argument parser - handles picking up the config file from the command line, and sending a "help" message parser = argparse.ArgumentParser() parser.add_argument('-c', '--config', action='store', dest='CONFIG_FILE', help='/full/path/to/config.file (usually hblink.cfg)') parser.add_argument('-l', '--logging', action='store', dest='LOG_LEVEL', help='Override config file logging level.') cli_args = parser.parse_args() # Ensure we have a path for the config file, if one wasn't specified, then use the default (top of file) if not cli_args.CONFIG_FILE: cli_args.CONFIG_FILE = os.path.dirname(os.path.abspath(__file__))+'/ipsc_to_mmdvm.cfg' # Call the external routine to build the configuration dictionary CONFIG = config.build_config(cli_args.CONFIG_FILE) # Start the system logger if cli_args.LOG_LEVEL: CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL logger = log.config_logging(CONFIG['LOGGER']) logger.info('\n\nCopyright (c) 2013, 2014, 2015, 2016, 2018\n\tThe Regents of the K0USY Group. All rights reserved.\n') logger.debug('(GLOBAL) Logging system started, anything from here on gets logged') # Set up the signal handler def sig_handler(_signal, _frame): logger.info('(GLOBAL) SHUTDOWN: CONFBRIDGE IS TERMINATING WITH SIGNAL %s', str(_signal)) hblink_handler(_signal, _frame) logger.info('(GLOBAL) SHUTDOWN: ALL SYSTEM HANDLERS EXECUTED - STOPPING REACTOR') reactor.stop() # Set signal handers so that we can gracefully exit if need be for sig in [signal.SIGINT, signal.SIGTERM]: signal.signal(sig, sig_handler) # Create the name-number mapping dictionaries peer_ids, subscriber_ids, talkgroup_ids = mk_aliases(CONFIG) # INITIALIZE THE REPORTING LOOP if CONFIG['REPORTS']['REPORT']: report_server = config_reports(CONFIG, bridgeReportFactory) else: report_server = None logger.info('(REPORT) TCP Socket reporting not configured') # HBlink instance creation logger.info('(GLOBAL) HBlink \'bridge.py\' -- SYSTEM STARTING...') for system in CONFIG['SYSTEMS']: if CONFIG['SYSTEMS'][system]['ENABLED']: if CONFIG['SYSTEMS'][system]['MODE'] == 'OPENBRIDGE': systems[system] = OBP(system, CONFIG, report_server) else: systems[system] = HBP(system, CONFIG, report_server) reactor.listenUDP(CONFIG['SYSTEMS'][system]['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['IP']) logger.debug('(GLOBAL) %s instance created: %s, %s', CONFIG['SYSTEMS'][system]['MODE'], system, systems[system]) def loopingErrHandle(failure): logger.error('(GLOBAL) STOPPING REACTOR TO AVOID MEMORY LEAK: Unhandled error in timed loop.\n %s', failure) reactor.stop() Path('/tmp/.hblink_data_que_ipsc/').mkdir(parents=True, exist_ok=True) UNIT = build_unit(CONFIG) data_que_check() reactor.run()