IPSC_Bridge Updates
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##################################
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# IPSC_Bridge configuration file #
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##################################
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# DEFAULTS - General settings. These values are
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# inherited in each subsequent section (defined by section value).
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[DEFAULTS]
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debug = False # Debug output for each VOICE frame
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outToFile = False # Write each AMBE frame to a file called ambe.bin
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outToUDP = True # Send each AMBE frame to the _sock object (turn on/off IPSC_Bridge operation)
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gateway = 127.0.0.1 # IP address of Partner Application (HB_Bridge, Analog_Bridge)
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fromGatewayPort = 31000 # Port IPSC_Bridge is listening on for data (IPSC_Bridge <--- Partner)
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toGatewayPort = 31003 # Port Partner is listening on for data (IPSC_Bridge ---> Partner)
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gatewayDmrId = 12345 # Deprecated no longer used. Required for now.
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# remoteControlPort = 31002 # Deprecated, no longer used. Will be removed IGNORE!
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# tgFilter = 2,3,9 # Deprecated, no longer used. Will be removed IGNORE!
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# txTg = 9 # Deprecated, no longer used. Will be removed IGNORE!
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# txTs = 2 # Deprecated, no longer used. Will be removed IGNORE!
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#!/usr/bin/env python
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#
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###############################################################################
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# Copyright (C) 2016 Cortney T. Buffington, N0MJS <n0mjs@me.com>
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# and
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# Copyright (C) 2017 Mike Zingman, N4IRR <Not.A.Chance@NoWhere.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public 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 this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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###############################################################################
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# This is a bridge application for IPSC networks. It knows how to export AMBE
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# frames and metadata to an external program/network. It also knows how to import
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# AMBE and metadata from an external network and send the DMR frames to IPSC networks.
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from __future__ import print_function
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from twisted.internet import reactor
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from binascii import b2a_hex as h
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from bitstring import BitArray
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import sys, socket, ConfigParser, thread, traceback
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import cPickle as pickle
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from dmrlink import IPSC, systems
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from dmr_utils.utils import int_id, hex_str_3, hex_str_4, get_alias, get_info
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from time import time, sleep, clock, localtime, strftime
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import csv
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import struct
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from random import randint
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import ambe_utils
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from ambe_bridge import AMBE_IPSC
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__author__ = 'Cortney T. Buffington, N0MJS'
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__copyright__ = 'Copyright (c) 2013 - 2016 Cortney T. Buffington, N0MJS and the K0USY Group'
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__credits__ = 'Adam Fast, KC0YLK; Dave Kierzkowski, KD8EYF; Robert Garcia, N5QM; Steve Zingman, N4IRS; Mike Zingman, N4IRR'
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__license__ = 'GNU GPLv3'
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__maintainer__ = 'Cort Buffington, N0MJS'
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__email__ = 'n0mjs@me.com'
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__version__ = '20170609'
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try:
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from ipsc.ipsc_const import *
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except ImportError:
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sys.exit('IPSC constants file not found or invalid')
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try:
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from ipsc.ipsc_mask import *
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except ImportError:
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sys.exit('IPSC mask values file not found or invalid')
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#
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# ambeIPSC class,
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#
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class ambeIPSC(IPSC):
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_configFile='IPSC_Bridge.cfg' # Name of the config file to over-ride these default values
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_debug = False # Debug output for each VOICE frame
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_outToFile = False # Write each AMBE frame to a file called ambe.bin
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_outToUDP = True # Send each AMBE frame to the _sock object (turn on/off Analog_Bridge operation)
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#_gateway = "192.168.1.184"
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_gateway = "127.0.0.1" # IP address of app
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_gateway_port = 31000 # Port Analog_Bridge is listening on for AMBE frames to decode
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_remote_control_port = 31002 # Port that ambe_audio is listening on for remote control commands
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_ambeRxPort = 31003 # Port to listen on for AMBE frames to transmit to all peers
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_gateway_dmr_id = 0 # id to use when transmitting from the gateway
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_tg_filter = [2,3,13,3174,3777215,3100,9,9998,3112] #set this to the tg to monitor
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_no_tg = -99 # Flag (const) that defines a value for "no tg is currently active"
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_busy_slots = [0,0,0] # Keep track of activity on each slot. Make sure app is polite
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_sock = -1; # Socket object to send AMBE to Analog_Bridge
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lastPacketTimeout = 0 # Time of last packet. Used to trigger an artifical TERM if one was not seen
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_transmitStartTime = 0 # Used for info on transmission duration
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_start_seq = 0 # Used to maintain error statistics for a transmission
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_packet_count = 0 # Used to maintain error statistics for a transmission
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_seq = 0 # Transmit frame sequence number (auto-increments for each frame)
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_f = None # File handle for debug AMBE binary output
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_tx_tg = hex_str_3(9998) # Hard code the destination TG. This ensures traffic will not show up on DMR-MARC
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_tx_ts = 2 # Time Slot 2
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_currentNetwork = ""
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_dmrgui = ''
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cc = 1
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ipsc_seq = 0
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###### DEBUGDEBUGDEBUG
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#_d = None
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###### DEBUGDEBUGDEBUG
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def __init__(self, _name, _config, _logger):
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IPSC.__init__(self, _name, _config, _logger)
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self.CALL_DATA = []
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#
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# Define default values for operation. These will be overridden by the .cfg file if found
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#
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self._currentTG = self._no_tg
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self._currentNetwork = str(_name)
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self.readConfigFile(self._configFile, None, self._currentNetwork)
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logger.info('DMRLink IPSC Bridge')
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if self._gateway_dmr_id == 0:
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sys.exit( "Error: gatewayDmrId must be set (greater than zero)" )
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#
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# Open output sincs
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#
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if self._outToFile == True:
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self._f = open('ambe.bin', 'wb')
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logger.info('Opening output file: ambe.bin')
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if self._outToUDP == True:
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self._sock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
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logger.info('Send UDP frames to Partner Bridge {}:{}'.format(self._gateway, self._gateway_port))
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self.ipsc_ambe = AMBE_IPSC(self, _name, _config, _logger, self._ambeRxPort)
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def get_globals(self):
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return (subscriber_ids, talkgroup_ids, peer_ids)
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def get_repeater_id(self, import_id):
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return self._config['LOCAL']['RADIO_ID']
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# Utility function to convert bytes to string of hex values (for debug)
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def ByteToHex( self, byteStr ):
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return ''.join( [ "%02X " % ord(x) for x in byteStr ] ).strip()
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#
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# Now read the configuration file and parse out the values we need
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#
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def defaultOption( self, config, sec, opt, defaultValue ):
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try:
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_value = config.get(sec, opt).split(None)[0] # Get the value from the named section
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except ConfigParser.NoOptionError as e:
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try:
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_value = config.get('DEFAULTS', opt).split(None)[0] # Try the global DEFAULTS section
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except ConfigParser.NoOptionError as e:
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_value = defaultValue # Not found anywhere, use the default value
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logger.info(opt + ' = ' + str(_value))
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return _value
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def readConfigFile(self, configFileName, sec, networkName='DEFAULTS'):
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config = ConfigParser.ConfigParser()
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try:
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config.read(configFileName)
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if sec == None:
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sec = self.defaultOption(config, 'DEFAULTS', 'section', networkName)
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if config.has_section(sec) == False:
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logger.error('Section ' + sec + ' was not found, using DEFAULTS')
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sec = 'DEFAULTS'
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self._debug = bool(self.defaultOption(config, sec,'debug', self._debug) == 'True')
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self._outToFile = bool(self.defaultOption(config, sec,'outToFile', self._outToFile) == 'True')
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self._outToUDP = bool(self.defaultOption(config, sec,'outToUDP', self._outToUDP) == 'True')
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self._gateway = self.defaultOption(config, sec,'gateway', self._gateway)
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self._gateway_port = int(self.defaultOption(config, sec,'toGatewayPort', self._gateway_port))
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self._remote_control_port = int(self.defaultOption(config, sec,'remoteControlPort', self._remote_control_port))
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self._ambeRxPort = int(self.defaultOption(config, sec,'fromGatewayPort', self._ambeRxPort))
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self._gateway_dmr_id = int(self.defaultOption(config, sec, 'gatewayDmrId', self._gateway_dmr_id))
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_tgs = self.defaultOption(config, sec,'tgFilter', str(self._tg_filter).strip('[]'))
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self._tg_filter = map(int, _tgs.split(','))
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self._tx_tg = hex_str_3(int(self.defaultOption(config, sec, 'txTg', int_id(self._tx_tg))))
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self._tx_ts = int(self.defaultOption(config, sec, 'txTs', self._tx_ts))
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except ConfigParser.NoOptionError as e:
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print('Using a default value:', e)
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except:
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traceback.print_exc()
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sys.exit('Configuration file \''+configFileName+'\' is not a valid configuration file! Exiting...')
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#************************************************
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# CALLBACK FUNCTIONS FOR USER PACKET TYPES
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#************************************************
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#
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def group_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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_tx_slot = self.ipsc_ambe.tx[_ts]
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_payload_type = _data[30:31]
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_seq = int_id(_data[20:22])
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_tx_slot.frame_count += 1
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if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
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_stream_id = int_id(_data[5:6]) # int8 looks like a sequence number for a packet
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if (_stream_id != _tx_slot.stream_id):
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self.ipsc_ambe.begin_call(_ts, _src_sub, _dst_sub, _peerid, self.cc, _seq, _stream_id)
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_tx_slot.lastSeq = _seq
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if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
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self.ipsc_ambe.end_call(_tx_slot)
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if (_payload_type == BURST_DATA_TYPE['SLOT1_VOICE']) or (_payload_type == BURST_DATA_TYPE['SLOT2_VOICE']):
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_ambe_frames = BitArray('0x'+h(_data[33:52]))
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_ambe_frame1 = _ambe_frames[0:49]
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_ambe_frame2 = _ambe_frames[50:99]
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_ambe_frame3 = _ambe_frames[100:149]
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self.ipsc_ambe.export_voice(_tx_slot, _seq, _ambe_frame1.tobytes() + _ambe_frame2.tobytes() + _ambe_frame3.tobytes())
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def private_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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print('private voice')
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#************************************************
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# Debug: print IPSC frame on console
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#************************************************
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def dumpIPSCFrame( self, _frame ):
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_packettype = int_id(_frame[0:1]) # int8 GROUP_VOICE, PVT_VOICE, GROUP_DATA, PVT_DATA, CALL_MON_STATUS, CALL_MON_RPT, CALL_MON_NACK, XCMP_XNL, RPT_WAKE_UP, DE_REG_REQ
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_peerid = int_id(_frame[1:5]) # int32 peer who is sending us a packet
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_ipsc_seq = int_id(_frame[5:6]) # int8 looks like a sequence number for a packet
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_src_sub = int_id(_frame[6:9]) # int32 Id of source
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_dst_sub = int_id(_frame[9:12]) # int32 Id of destination
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_call_type = int_id(_frame[12:13]) # int8 Priority Voice/Data
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_call_ctrl_info = int_id(_frame[13:17]) # int32
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_call_info = int_id(_frame[17:18]) # int8 Bits 6 and 7 defined as TS and END
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# parse out the RTP values
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_rtp_byte_1 = int_id(_frame[18:19]) # Call Ctrl Src
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_rtp_byte_2 = int_id(_frame[19:20]) # Type
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_rtp_seq = int_id(_frame[20:22]) # Call Seq No
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_rtp_tmstmp = int_id(_frame[22:26]) # Timestamp
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_rtp_ssid = int_id(_frame[26:30]) # Sync Src Id
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_payload_type = _frame[30] # int8 VOICE_HEAD, VOICE_TERM, SLOT1_VOICE, SLOT2_VOICE
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_ts = bool(_call_info & TS_CALL_MSK)
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_end = bool(_call_info & END_MSK)
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if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
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print('HEAD:', h(_frame))
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if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
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_ipsc_rssi_threshold_and_parity = int_id(_frame[31])
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_ipsc_length_to_follow = int_id(_frame[32:34])
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_ipsc_rssi_status = int_id(_frame[34])
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_ipsc_slot_type_sync = int_id(_frame[35])
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_ipsc_data_size = int_id(_frame[36:38])
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_ipsc_data = _frame[38:38+(_ipsc_length_to_follow * 2)-4]
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_ipsc_full_lc_byte1 = int_id(_frame[38])
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_ipsc_full_lc_fid = int_id(_frame[39])
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_ipsc_voice_pdu_service_options = int_id(_frame[40])
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_ipsc_voice_pdu_dst = int_id(_frame[41:44])
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_ipsc_voice_pdu_src = int_id(_frame[44:47])
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print('{} {} {} {} {} {} {} {} {} {} {}'.format(_ipsc_rssi_threshold_and_parity,_ipsc_length_to_follow,_ipsc_rssi_status,_ipsc_slot_type_sync,_ipsc_data_size,h(_ipsc_data),_ipsc_full_lc_byte1,_ipsc_full_lc_fid,_ipsc_voice_pdu_service_options,_ipsc_voice_pdu_dst,_ipsc_voice_pdu_src))
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print('TERM:', h(_frame))
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if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
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_rtp_len = _frame[31:32]
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_ambe = _frame[33:52]
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print('SLOT1:', h(_frame))
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if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
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_rtp_len = _frame[31:32]
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_ambe = _frame[33:52]
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print('SLOT2:', h(_frame))
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print("pt={:02X} pid={} seq={:02X} src={} dst={} ct={:02X} uk={} ci={} rsq={}".format(_packettype, _peerid,_ipsc_seq, _src_sub,_dst_sub,_call_type,_call_ctrl_info,_call_info,_rtp_seq))
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if __name__ == '__main__':
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import argparse
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import os
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import sys
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import signal
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from dmr_utils.utils import try_download, mk_id_dict
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import dmrlink_log
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import dmrlink_config
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# Change the current directory to the location of the application
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os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
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# CLI argument parser - handles picking up the config file from the command line, and sending a "help" message
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parser = argparse.ArgumentParser()
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parser.add_argument('-c', '--config', action='store', dest='CFG_FILE', help='/full/path/to/config.file (usually dmrlink.cfg)')
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parser.add_argument('-ll', '--log_level', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
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parser.add_argument('-lh', '--log_handle', action='store', dest='LOG_HANDLERS', help='Override config file logging handler.')
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cli_args = parser.parse_args()
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if not cli_args.CFG_FILE:
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cli_args.CFG_FILE = os.path.dirname(os.path.abspath(__file__))+'/dmrlink.cfg'
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# Call the external routine to build the configuration dictionary
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CONFIG = dmrlink_config.build_config(cli_args.CFG_FILE)
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# Call the external routing to start the system logger
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if cli_args.LOG_LEVEL:
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CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
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if cli_args.LOG_HANDLERS:
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CONFIG['LOGGER']['LOG_HANDLERS'] = cli_args.LOG_HANDLERS
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logger = dmrlink_log.config_logging(CONFIG['LOGGER'])
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logger.info('DMRlink \'IPSC_Bridge.py\' (c) 2015 N0MJS & the K0USY Group - SYSTEM STARTING...')
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logger.info('Version %s', __version__)
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# ID ALIAS CREATION
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# Download
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if CONFIG['ALIASES']['TRY_DOWNLOAD'] == True:
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# Try updating peer aliases file
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result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['PEER_FILE'], CONFIG['ALIASES']['PEER_URL'], CONFIG['ALIASES']['STALE_TIME'])
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logger.info(result)
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# Try updating subscriber aliases file
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result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['SUBSCRIBER_FILE'], CONFIG['ALIASES']['SUBSCRIBER_URL'], CONFIG['ALIASES']['STALE_TIME'])
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logger.info(result)
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# Make Dictionaries
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peer_ids = mk_id_dict(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['PEER_FILE'])
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if peer_ids:
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logger.info('ID ALIAS MAPPER: peer_ids dictionary is available')
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subscriber_ids = mk_id_dict(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['SUBSCRIBER_FILE'])
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if subscriber_ids:
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logger.info('ID ALIAS MAPPER: subscriber_ids dictionary is available')
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talkgroup_ids = mk_id_dict(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['TGID_FILE'])
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if talkgroup_ids:
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logger.info('ID ALIAS MAPPER: talkgroup_ids dictionary is available')
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# Shut ourselves down gracefully with the IPSC peers.
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def sig_handler(_signal, _frame):
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logger.info('*** DMRLINK IS TERMINATING WITH SIGNAL %s ***', str(_signal))
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for system in systems:
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this_ipsc = systems[system]
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logger.info('De-Registering from IPSC %s', system)
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de_reg_req_pkt = this_ipsc.hashed_packet(this_ipsc._local['AUTH_KEY'], this_ipsc.DE_REG_REQ_PKT)
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this_ipsc.send_to_ipsc(de_reg_req_pkt)
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reactor.stop()
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# Set signal handers so that we can gracefully exit if need be
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for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGQUIT]:
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signal.signal(sig, sig_handler)
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# INITIALIZE AN IPSC OBJECT (SELF SUSTAINING) FOR EACH CONFIGUED IPSC
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||||
for system in CONFIG['SYSTEMS']:
|
||||
if CONFIG['SYSTEMS'][system]['LOCAL']['ENABLED']:
|
||||
systems[system] = ambeIPSC(system, CONFIG, logger)
|
||||
reactor.listenUDP(CONFIG['SYSTEMS'][system]['LOCAL']['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['LOCAL']['IP'])
|
||||
|
||||
reactor.run()
|
|
@ -1,54 +0,0 @@
|
|||
################################################
|
||||
# ambe_audio configuration file.
|
||||
################################################
|
||||
|
||||
# DEFAULTS - General settings. These values are
|
||||
# inherited in each subsequent section (defined by section value).
|
||||
|
||||
[DEFAULTS]
|
||||
debug = False # Debug output for each VOICE frame
|
||||
outToFile = False # Write each AMBE frame to a file called ambe.bin
|
||||
outToUDP = True # Send each AMBE frame to the _sock object (turn on/off DMRGateway operation)
|
||||
gateway = 127.0.0.1 # IP address of DMRGateway app
|
||||
toGatewayPort = 31000 # Port DMRGateway is listening on for AMBE frames to decode
|
||||
remoteControlPort = 31002 # Port that ambe_audio is listening on for remote control commands
|
||||
fromGatewayPort = 31003 # Port to listen on for AMBE frames to transmit to all peers
|
||||
gatewayDmrId = 0 # id to use when transmitting from the gateway
|
||||
tgFilter = 9 # A list of TG IDs to monitor. All TGs will be passed to DMRGateway
|
||||
txTg = 9 # TG to use for all frames received from DMRGateway -> IPSC
|
||||
txTs = 2 # Slot to use for frames received from DMRGateway -> IPSC
|
||||
#
|
||||
# The section setting defines the current section to use. By default, the ‘ENABLED’ section in dmrlink.cfg is used.
|
||||
# Any values in the named section override the values from the DEFAULTS section. For example, if the BM section
|
||||
# has a value for gatewayDmrId it would override the value above. Only one section should be set here. Think
|
||||
# of this as an easy way to switch between several different configurations with a single line.
|
||||
#
|
||||
# section = BM # Use BM section values
|
||||
# section = Sandbox # Use SANDBOX section values
|
||||
|
||||
[BM] # BrandMeister
|
||||
tgFilter = 3100,31094 # A list of TG IDs to monitor. All TGs will be passed to DMRGateway
|
||||
txTg = 3100 # TG to use for all frames received from DMRGateway -> IPSC
|
||||
txTs = 2 # Slot to use for frames received from DMRGateway -> IPSC
|
||||
|
||||
[BM2] # Alternate BM configuration
|
||||
tgFilter = 31094
|
||||
txTg = 31094
|
||||
txTs = 2
|
||||
|
||||
[Sandbox] # DMR MARC sandbox network
|
||||
tgFilter = 3120
|
||||
txTg = 3120
|
||||
txTs = 2
|
||||
|
||||
[Sandbox2] # DMR MARC sandbox network
|
||||
tgFilter = 1
|
||||
txTg = 1
|
||||
txTs = 1
|
||||
|
||||
[N4IRS] # N4IRS/INAD network
|
||||
tgFilter = 1,2,3,13,3174,3777215,3100,9,9998,3112,3136,310,311,312,9997
|
||||
txTg = 9998
|
||||
txTs = 2
|
||||
|
||||
|
678
ambe_audio.py
678
ambe_audio.py
|
@ -1,678 +0,0 @@
|
|||
#!/usr/bin/env python
|
||||
#
|
||||
###############################################################################
|
||||
# Copyright (C) 2016 Cortney T. Buffington, N0MJS <n0mjs@me.com>
|
||||
#
|
||||
# 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
|
||||
###############################################################################
|
||||
|
||||
# This is a sample applicaiton that dumps all raw AMBE+2 voice frame data
|
||||
# It is useful for things like, decoding the audio stream with a DVSI dongle, etc.
|
||||
|
||||
from __future__ import print_function
|
||||
from twisted.internet import reactor
|
||||
from binascii import b2a_hex as h
|
||||
from bitstring import BitArray
|
||||
|
||||
import sys, socket, ConfigParser, thread, traceback
|
||||
import cPickle as pickle
|
||||
|
||||
from dmrlink import IPSC, mk_ipsc_systems, systems, reportFactory, build_aliases, config_reports
|
||||
from dmr_utils.utils import int_id, hex_str_3, hex_str_4, get_alias, get_info
|
||||
|
||||
from time import time, sleep, clock, localtime, strftime
|
||||
import csv
|
||||
import struct
|
||||
from random import randint
|
||||
|
||||
__author__ = 'Cortney T. Buffington, N0MJS'
|
||||
__copyright__ = 'Copyright (c) 2013 - 2016 Cortney T. Buffington, N0MJS and the K0USY Group'
|
||||
__credits__ = 'Adam Fast, KC0YLK; Dave Kierzkowski, KD8EYF; Robert Garcia, N5QM; Steve Zingman, N4IRS; Mike Zingman, N4IRR'
|
||||
__license__ = 'GNU GPLv3'
|
||||
__maintainer__ = 'Cort Buffington, N0MJS'
|
||||
__email__ = 'n0mjs@me.com'
|
||||
|
||||
|
||||
|
||||
try:
|
||||
from ipsc.ipsc_const import *
|
||||
except ImportError:
|
||||
sys.exit('IPSC constants file not found or invalid')
|
||||
|
||||
try:
|
||||
from ipsc.ipsc_mask import *
|
||||
except ImportError:
|
||||
sys.exit('IPSC mask values file not found or invalid')
|
||||
|
||||
|
||||
#
|
||||
# ambeIPSC class,
|
||||
#
|
||||
class ambeIPSC(IPSC):
|
||||
|
||||
_configFile='ambe_audio.cfg' # Name of the config file to over-ride these default values
|
||||
_debug = False # Debug output for each VOICE frame
|
||||
_outToFile = False # Write each AMBE frame to a file called ambe.bin
|
||||
_outToUDP = True # Send each AMBE frame to the _sock object (turn on/off DMRGateway operation)
|
||||
#_gateway = "192.168.1.184"
|
||||
_gateway = "127.0.0.1" # IP address of DMRGateway app
|
||||
_gateway_port = 31000 # Port DMRGateway is listening on for AMBE frames to decode
|
||||
_remote_control_port = 31002 # Port that ambe_audio is listening on for remote control commands
|
||||
_ambeRxPort = 31003 # Port to listen on for AMBE frames to transmit to all peers
|
||||
_gateway_dmr_id = 0 # id to use when transmitting from the gateway
|
||||
_tg_filter = [2,3,13,3174,3777215,3100,9,9998,3112] #set this to the tg to monitor
|
||||
|
||||
_no_tg = -99 # Flag (const) that defines a value for "no tg is currently active"
|
||||
_busy_slots = [0,0,0] # Keep track of activity on each slot. Make sure app is polite
|
||||
_sock = -1; # Socket object to send AMBE to DMRGateway
|
||||
lastPacketTimeout = 0 # Time of last packet. Used to trigger an artifical TERM if one was not seen
|
||||
_transmitStartTime = 0 # Used for info on transmission duration
|
||||
_start_seq = 0 # Used to maintain error statistics for a transmission
|
||||
_packet_count = 0 # Used to maintain error statistics for a transmission
|
||||
_seq = 0 # Transmit frame sequence number (auto-increments for each frame)
|
||||
_f = None # File handle for debug AMBE binary output
|
||||
|
||||
_tx_tg = hex_str_3(9998) # Hard code the destination TG. This ensures traffic will not show up on DMR-MARC
|
||||
_tx_ts = 2 # Time Slot 2
|
||||
_currentNetwork = ""
|
||||
_dmrgui = ''
|
||||
|
||||
###### DEBUGDEBUGDEBUG
|
||||
#_d = None
|
||||
###### DEBUGDEBUGDEBUG
|
||||
|
||||
def __init__(self, _name, _config, _logger, _report):
|
||||
IPSC.__init__(self, _name, _config, _logger, _report)
|
||||
self.CALL_DATA = []
|
||||
|
||||
#
|
||||
# Define default values for operation. These will be overridden by the .cfg file if found
|
||||
#
|
||||
|
||||
self._currentTG = self._no_tg
|
||||
self._currentNetwork = str(_name)
|
||||
self.readConfigFile(self._configFile, None, self._currentNetwork)
|
||||
|
||||
logger.info('DMRLink ambe server')
|
||||
if self._gateway_dmr_id == 0:
|
||||
sys.exit( "Error: gatewayDmrId must be set (greater than zero)" )
|
||||
#
|
||||
# Open output sincs
|
||||
#
|
||||
if self._outToFile == True:
|
||||
self._f = open('ambe.bin', 'wb')
|
||||
logger.info('Opening output file: ambe.bin')
|
||||
if self._outToUDP == True:
|
||||
self._sock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
|
||||
logger.info('Send UDP frames to DMR gateway {}:{}'.format(self._gateway, self._gateway_port))
|
||||
|
||||
###### DEBUGDEBUGDEBUG
|
||||
#self._d = open('recordData.bin', 'wb')
|
||||
###### DEBUGDEBUGDEBUG
|
||||
|
||||
try:
|
||||
thread.start_new_thread( self.remote_control, (self._remote_control_port, ) ) # Listen for remote control commands
|
||||
thread.start_new_thread( self.launchUDP, (_name, ) ) # Package AMBE into IPSC frames and send to all peers
|
||||
except:
|
||||
traceback.print_exc()
|
||||
logger.error( "Error: unable to start thread" )
|
||||
|
||||
|
||||
# Utility function to convert bytes to string of hex values (for debug)
|
||||
def ByteToHex( self, byteStr ):
|
||||
return ''.join( [ "%02X " % ord(x) for x in byteStr ] ).strip()
|
||||
|
||||
#
|
||||
# Now read the configuration file and parse out the values we need
|
||||
#
|
||||
def defaultOption( self, config, sec, opt, defaultValue ):
|
||||
try:
|
||||
_value = config.get(sec, opt).split(None)[0] # Get the value from the named section
|
||||
except ConfigParser.NoOptionError as e:
|
||||
try:
|
||||
_value = config.get('DEFAULTS', opt).split(None)[0] # Try the global DEFAULTS section
|
||||
except ConfigParser.NoOptionError as e:
|
||||
_value = defaultValue # Not found anywhere, use the default value
|
||||
logger.info(opt + ' = ' + str(_value))
|
||||
return _value
|
||||
|
||||
def readConfigFile(self, configFileName, sec, networkName='DEFAULTS'):
|
||||
config = ConfigParser.ConfigParser()
|
||||
try:
|
||||
config.read(configFileName)
|
||||
|
||||
if sec == None:
|
||||
sec = self.defaultOption(config, 'DEFAULTS', 'section', networkName)
|
||||
if config.has_section(sec) == False:
|
||||
logger.error('Section ' + sec + ' was not found, using DEFAULTS')
|
||||
sec = 'DEFAULTS'
|
||||
self._debug = bool(self.defaultOption(config, sec,'debug', self._debug) == 'True')
|
||||
self._outToFile = bool(self.defaultOption(config, sec,'outToFile', self._outToFile) == 'True')
|
||||
self._outToUDP = bool(self.defaultOption(config, sec,'outToUDP', self._outToUDP) == 'True')
|
||||
|
||||
self._gateway = self.defaultOption(config, sec,'gateway', self._gateway)
|
||||
self._gateway_port = int(self.defaultOption(config, sec,'toGatewayPort', self._gateway_port))
|
||||
|
||||
self._remote_control_port = int(self.defaultOption(config, sec,'remoteControlPort', self._remote_control_port))
|
||||
self._ambeRxPort = int(self.defaultOption(config, sec,'fromGatewayPort', self._ambeRxPort))
|
||||
self._gateway_dmr_id = int(self.defaultOption(config, sec, 'gatewayDmrId', self._gateway_dmr_id))
|
||||
|
||||
_tgs = self.defaultOption(config, sec,'tgFilter', str(self._tg_filter).strip('[]'))
|
||||
self._tg_filter = map(int, _tgs.split(','))
|
||||
|
||||
self._tx_tg = hex_str_3(int(self.defaultOption(config, sec, 'txTg', int_id(self._tx_tg))))
|
||||
self._tx_ts = int(self.defaultOption(config, sec, 'txTs', self._tx_ts))
|
||||
|
||||
except ConfigParser.NoOptionError as e:
|
||||
print('Using a default value:', e)
|
||||
except:
|
||||
traceback.print_exc()
|
||||
sys.exit('Configuration file \''+configFileName+'\' is not a valid configuration file! Exiting...')
|
||||
|
||||
def rewriteFrame( self, _frame, _newSlot, _newGroup, _newSouceID, _newPeerID ):
|
||||
|
||||
_peerid = _frame[1:5] # int32 peer who is sending us a packet
|
||||
_src_sub = _frame[6:9] # int32 Id of source
|
||||
_burst_data_type = _frame[30]
|
||||
|
||||
########################################################################
|
||||
# re-Write the peer radio ID to that of this program
|
||||
_frame = _frame.replace(_peerid, _newPeerID)
|
||||
# re-Write the source subscriber ID to that of this program
|
||||
_frame = _frame.replace(_src_sub, _newSouceID)
|
||||
# Re-Write the destination Group ID
|
||||
_frame = _frame.replace(_frame[9:12], _newGroup)
|
||||
|
||||
# Re-Write IPSC timeslot value
|
||||
_call_info = int_id(_frame[17:18])
|
||||
if _newSlot == 1:
|
||||
_call_info &= ~(1 << 5)
|
||||
elif _newSlot == 2:
|
||||
_call_info |= 1 << 5
|
||||
_call_info = chr(_call_info)
|
||||
_frame = _frame[:17] + _call_info + _frame[18:]
|
||||
|
||||
_x = struct.pack("i", self._seq)
|
||||
_frame = _frame[:20] + _x[1] + _x[0] + _frame[22:]
|
||||
self._seq = self._seq + 1
|
||||
|
||||
# Re-Write DMR timeslot value
|
||||
# Determine if the slot is present, so we can translate if need be
|
||||
if _burst_data_type == BURST_DATA_TYPE['SLOT1_VOICE'] or _burst_data_type == BURST_DATA_TYPE['SLOT2_VOICE']:
|
||||
# Re-Write timeslot if necessary...
|
||||
if _newSlot == 1:
|
||||
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
|
||||
elif _newSlot == 2:
|
||||
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
|
||||
_frame = _frame[:30] + _burst_data_type + _frame[31:]
|
||||
|
||||
if (time() - self._busy_slots[_newSlot]) >= 0.10 : # slot is not busy so it is safe to transmit
|
||||
# Send the packet to all peers in the target IPSC
|
||||
self.send_to_ipsc(_frame)
|
||||
else:
|
||||
logger.info('Slot {} is busy, will not transmit packet from gateway'.format(_newSlot))
|
||||
|
||||
########################################################################
|
||||
|
||||
# Read a record from the captured IPSC file looking for a payload type that matches the filter
|
||||
def readRecord(self, _file, _match_type):
|
||||
_notEOF = True
|
||||
# _file.seek(0)
|
||||
while (_notEOF):
|
||||
_data = ""
|
||||
_bLen = _file.read(4)
|
||||
if _bLen:
|
||||
_len, = struct.unpack("i", _bLen)
|
||||
if _len > 0:
|
||||
_data = _file.read(_len)
|
||||
_payload_type = _data[30]
|
||||
if _payload_type == _match_type:
|
||||
return _data
|
||||
else:
|
||||
_notEOF = False
|
||||
else:
|
||||
_notEOF = False
|
||||
return _data
|
||||
|
||||
# Read bytes from the socket with "timeout" I hate this code.
|
||||
def readSock( self, _sock, len ):
|
||||
counter = 0
|
||||
while(counter < 3):
|
||||
_ambe = _sock.recv(len)
|
||||
if _ambe: break
|
||||
sleep(0.1)
|
||||
counter = counter + 1
|
||||
return _ambe
|
||||
|
||||
# Concatenate 3 frames from the stream into a bit array and return the bytes
|
||||
def readAmbeFrameFromUDP( self, _sock ):
|
||||
_ambeAll = BitArray() # Start with an empty array
|
||||
for i in range(0, 3):
|
||||
_ambe = self.readSock(_sock,7) # Read AMBE from the socket
|
||||
if _ambe:
|
||||
_ambe1 = BitArray('0x'+h(_ambe[0:49]))
|
||||
_ambeAll += _ambe1[0:50] # Append the 49 bits to the string
|
||||
else:
|
||||
break
|
||||
return _ambeAll.tobytes() # Return the 49 * 3 as an array of bytes
|
||||
|
||||
# Set up the socket and run the method to gather the AMBE. Sending it to all peers
|
||||
def launchUDP(self, _name):
|
||||
s = socket.socket() # Create a socket object
|
||||
s.bind(('', self._ambeRxPort)) # Bind to the port
|
||||
|
||||
while (1): # Forever!
|
||||
s.listen(5) # Now wait for client connection.
|
||||
_sock, addr = s.accept() # Establish connection with client.
|
||||
if int_id(self._tx_tg) > 0: # Test if we are allowed to transmit
|
||||
self.playbackFromUDP(_sock) # SSZ was here.
|
||||
else:
|
||||
self.transmitDisabled(_sock, self._system) #tg is zero, so just eat the network trafic
|
||||
_sock.close()
|
||||
|
||||
# This represents a full transmission (HEAD, VOICE and TERM)
|
||||
def playbackFromUDP(self, _sock):
|
||||
_delay = 0.055 # Yes, I know it should be 0.06, but there seems to be some latency, so this is a hack
|
||||
_src_sub = hex_str_3(self._gateway_dmr_id) # DMR ID to sign this transmission with
|
||||
_src_peer = self._config['LOCAL']['RADIO_ID'] # Use this peers ID as the source repeater
|
||||
|
||||
logger.info('Transmit from gateway to TG {}:'.format(int_id(self._tx_tg)) )
|
||||
try:
|
||||
|
||||
try:
|
||||
_t = open('template.bin', 'rb') # Open the template file. This was recorded OTA
|
||||
|
||||
_tempHead = [0] * 3 # It appears that there 3 frames of HEAD (mostly the same)
|
||||
for i in range(0, 3):
|
||||
_tempHead[i] = self.readRecord(_t, BURST_DATA_TYPE['VOICE_HEAD'])
|
||||
|
||||
_tempVoice = [0] * 6
|
||||
for i in range(0, 6): # Then there are 6 frames of AMBE. We will just use them in order
|
||||
_tempVoice[i] = self.readRecord(_t, BURST_DATA_TYPE['SLOT2_VOICE'])
|
||||
|
||||
_tempTerm = self.readRecord(_t, BURST_DATA_TYPE['VOICE_TERM'])
|
||||
_t.close()
|
||||
except IOError:
|
||||
logger.error('Can not open template.bin file')
|
||||
return
|
||||
logger.debug('IPSC templates loaded')
|
||||
|
||||
_eof = False
|
||||
self._seq = randint(0,32767) # A transmission uses a random number to begin its sequence (16 bit)
|
||||
|
||||
for i in range(0, 3): # Output the 3 HEAD frames to our peers
|
||||
self.rewriteFrame(_tempHead[i], self._tx_ts, self._tx_tg, _src_sub, _src_peer)
|
||||
#self.group_voice(self._system, _src_sub, self._tx_tg, True, '', hex_str_3(0), _tempHead[i])
|
||||
sleep(_delay)
|
||||
|
||||
i = 0 # Initialize the VOICE template index
|
||||
while(_eof == False):
|
||||
_ambe = self.readAmbeFrameFromUDP(_sock) # Read the 49*3 bit sample from the stream
|
||||
if _ambe:
|
||||
i = (i + 1) % 6 # Round robbin with the 6 VOICE templates
|
||||
_frame = _tempVoice[i][:33] + _ambe + _tempVoice[i][52:] # Insert the 3 49 bit AMBE frames
|
||||
|
||||
self.rewriteFrame(_frame, self._tx_ts, self._tx_tg, _src_sub, _src_peer)
|
||||
#self.group_voice(self._system, _src_sub, self._tx_tg, True, '', hex_str_3(0), _frame)
|
||||
|
||||
sleep(_delay) # Since this comes from a file we have to add delay between IPSC frames
|
||||
else:
|
||||
_eof = True # There are no more AMBE frames, so terminate the loop
|
||||
|
||||
self.rewriteFrame(_tempTerm, self._tx_ts, self._tx_tg, _src_sub, _src_peer)
|
||||
#self.group_voice(self._system, _src_sub, self._tx_tg, True, '', hex_str_3(0), _tempTerm)
|
||||
|
||||
except IOError:
|
||||
logger.error('Can not transmit to peers')
|
||||
logger.info('Transmit complete')
|
||||
|
||||
def transmitDisabled(self, _sock):
|
||||
_eof = False
|
||||
logger.debug('Transmit disabled begin')
|
||||
while(_eof == False):
|
||||
if self.readAmbeFrameFromUDP(_sock):
|
||||
pass
|
||||
else:
|
||||
_eof = True # There are no more AMBE frames, so terminate the loop
|
||||
logger.debug('Transmit disabled end')
|
||||
|
||||
# Debug method used to test the AMBE code.
|
||||
def playbackFromFile(self, _fileName):
|
||||
_r = open(_fileName, 'rb')
|
||||
_eof = False
|
||||
|
||||
host = socket.gethostbyname(socket.gethostname()) # Get local machine name
|
||||
_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
||||
_sock.connect((host, self._ambeRxPort))
|
||||
|
||||
while(_eof == False):
|
||||
|
||||
for i in range(0, 3):
|
||||
_ambe = _r.read(7)
|
||||
if _ambe:
|
||||
_sock.send(_ambe)
|
||||
else:
|
||||
_eof = True
|
||||
sleep(0.055)
|
||||
logger.info('File playback complete')
|
||||
|
||||
def dumpTemplate(self, _fileName):
|
||||
_file = open(_fileName, 'rb')
|
||||
_eof = False
|
||||
|
||||
while(_eof == False):
|
||||
_data = ""
|
||||
_bLen = _file.read(4)
|
||||
if _bLen:
|
||||
_len, = struct.unpack("i", _bLen)
|
||||
if _len > 0:
|
||||
_data = _file.read(_len)
|
||||
self.dumpIPSCFrame(_data)
|
||||
else:
|
||||
_eof = True
|
||||
logger.info('File dump complete')
|
||||
|
||||
#************************************************
|
||||
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
|
||||
#************************************************
|
||||
#
|
||||
|
||||
def group_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
|
||||
|
||||
#self.dumpIPSCFrame(_data)
|
||||
|
||||
# THIS FUNCTION IS NOT COMPLETE!!!!
|
||||
_payload_type = _data[30:31]
|
||||
# _ambe_frames = _data[33:52]
|
||||
_ambe_frames = BitArray('0x'+h(_data[33:52]))
|
||||
_ambe_frame1 = _ambe_frames[0:49]
|
||||
_ambe_frame2 = _ambe_frames[50:99]
|
||||
_ambe_frame3 = _ambe_frames[100:149]
|
||||
|
||||
_tg_id = int_id(_dst_sub)
|
||||
|
||||
self._busy_slots[_ts] = time()
|
||||
|
||||
###### DEBUGDEBUGDEBUG
|
||||
# if _tg_id == 2:
|
||||
# __iLen = len(_data)
|
||||
# self._d.write(struct.pack("i", __iLen))
|
||||
# self._d.write(_data)
|
||||
# else:
|
||||
# self.rewriteFrame(_data, 1, 9)
|
||||
###### DEBUGDEBUGDEBUG
|
||||
|
||||
|
||||
if _tg_id in self._tg_filter: #All TGs
|
||||
_dst_sub = get_alias(_dst_sub, talkgroup_ids)
|
||||
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
|
||||
if self._currentTG == self._no_tg:
|
||||
_src_sub = get_subscriber_info(_src_sub)
|
||||
logger.info('Voice Transmission Start on TS {} and TG {} ({}) from {}'.format(_ts, _dst_sub, _tg_id, _src_sub))
|
||||
self._sock.sendto('reply log2 {} {}'.format(_src_sub, _tg_id), (self._dmrgui, 34003))
|
||||
|
||||
self._currentTG = _tg_id
|
||||
self._transmitStartTime = time()
|
||||
self._start_seq = int_id(_data[20:22])
|
||||
self._packet_count = 0
|
||||
else:
|
||||
if self._currentTG != _tg_id:
|
||||
if time() > self.lastPacketTimeout:
|
||||
self._currentTG = self._no_tg #looks like we never saw an EOT from the last stream
|
||||
logger.warning('EOT timeout')
|
||||
else:
|
||||
logger.warning('Transmission in progress, will not decode stream on TG {}'.format(_tg_id))
|
||||
if self._currentTG == _tg_id:
|
||||
if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
|
||||
_source_packets = ( int_id(_data[20:22]) - self._start_seq ) - 3 # the 3 is because the start and end are not part of the voice but counted in the RTP
|
||||
if self._packet_count > _source_packets:
|
||||
self._packet_count = _source_packets
|
||||
if _source_packets > 0:
|
||||
_lost_percentage = 100.0 - ((self._packet_count / float(_source_packets)) * 100.0)
|
||||
else:
|
||||
_lost_percentage = 0.0
|
||||
_duration = (time() - self._transmitStartTime)
|
||||
logger.info('Voice Transmission End {:.2f} seconds loss rate: {:.2f}% ({}/{})'.format(_duration, _lost_percentage, _source_packets - self._packet_count, _source_packets))
|
||||
self._sock.sendto("reply log" +
|
||||
strftime(" %m/%d/%y %H:%M:%S", localtime(self._transmitStartTime)) +
|
||||
' {} {} "{}"'.format(get_subscriber_info(_src_sub), _ts, _dst_sub) +
|
||||
' {:.2f}%'.format(_lost_percentage) +
|
||||
' {:.2f}s'.format(_duration), (self._dmrgui, 34003))
|
||||
self._currentTG = self._no_tg
|
||||
if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
|
||||
self.outputFrames(_ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3)
|
||||
self._packet_count += 1
|
||||
if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
|
||||
self.outputFrames(_ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3)
|
||||
self._packet_count += 1
|
||||
self.lastPacketTimeout = time() + 10
|
||||
|
||||
else:
|
||||
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
|
||||
_dst_sub = get_alias(_dst_sub, talkgroup_ids)
|
||||
logger.warning('Ignored Voice Transmission Start on TS {} and TG {}'.format(_ts, _dst_sub))
|
||||
|
||||
def outputFrames(self, _ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3):
|
||||
if self._debug == True:
|
||||
logger.debug(_ambe_frames)
|
||||
logger.debug('Frame 1:', self.ByteToHex(_ambe_frame1.tobytes()))
|
||||
logger.debug('Frame 2:', self.ByteToHex(_ambe_frame2.tobytes()))
|
||||
logger.debug('Frame 3:', self.ByteToHex(_ambe_frame3.tobytes()))
|
||||
|
||||
if self._outToFile == True:
|
||||
self._f.write( _ambe_frame1.tobytes() )
|
||||
self._f.write( _ambe_frame2.tobytes() )
|
||||
self._f.write( _ambe_frame3.tobytes() )
|
||||
|
||||
if self._outToUDP == True:
|
||||
self._sock.sendto(_ambe_frame1.tobytes(), (self._gateway, self._gateway_port))
|
||||
self._sock.sendto(_ambe_frame2.tobytes(), (self._gateway, self._gateway_port))
|
||||
self._sock.sendto(_ambe_frame3.tobytes(), (self._gateway, self._gateway_port))
|
||||
|
||||
def private_voice(self, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
|
||||
print('private voice')
|
||||
# __iLen = len(_data)
|
||||
# self._d.write(struct.pack("i", __iLen))
|
||||
# self._d.write(_data)
|
||||
|
||||
#
|
||||
# Remote control thread
|
||||
# Use netcat to dynamically change ambe_audio without a restart
|
||||
# echo -n "tgs=x,y,z" | nc 127.0.0.1 31002
|
||||
# echo -n "reread_subscribers" | nc 127.0.0.1 31002
|
||||
# echo -n "reread_config" | nc 127.0.0.1 31002
|
||||
# echo -n "txTg=##" | nc 127.0.0.1 31002
|
||||
# echo -n "txTs=#" | nc 127.0.0.1 31002
|
||||
# echo -n "section=XX" | nc 127.0.0.1 31002
|
||||
#
|
||||
def remote_control(self, port):
|
||||
s = socket.socket() # Create a socket object
|
||||
|
||||
s.bind(('', port)) # Bind to the port
|
||||
s.listen(5) # Now wait for client connection.
|
||||
logger.info('Remote control is listening on {}:{}'.format(socket.getfqdn(), port))
|
||||
|
||||
while True:
|
||||
c, addr = s.accept() # Establish connection with client.
|
||||
logger.info( 'Got connection from {}'.format(addr) )
|
||||
self._dmrgui = addr[0]
|
||||
_tmp = c.recv(1024)
|
||||
_tmp = _tmp.split(None)[0] #first get rid of whitespace
|
||||
_cmd = _tmp.split('=')[0]
|
||||
logger.info('Command:"{}"'.format(_cmd))
|
||||
if _cmd:
|
||||
if _cmd == 'reread_subscribers':
|
||||
reread_subscribers()
|
||||
elif _cmd == 'reread_config':
|
||||
self.readConfigFile(self._configFile, None, self._currentNetwork)
|
||||
elif _cmd == 'txTg':
|
||||
self._tx_tg = hex_str_3(int(_tmp.split('=')[1]))
|
||||
print('New txTg = ' + str(int_id(self._tx_tg)))
|
||||
elif _cmd == 'txTs':
|
||||
self._tx_ts = int(_tmp.split('=')[1])
|
||||
print('New txTs = ' + str(self._tx_ts))
|
||||
elif _cmd == 'section':
|
||||
self.readConfigFile(self._configFile, _tmp.split('=')[1])
|
||||
elif _cmd == 'gateway_dmr_id':
|
||||
self._gateway_dmr_id = int(_tmp.split('=')[1])
|
||||
print('New gateway_dmr_id = ' + str(self._gateway_dmr_id))
|
||||
elif _cmd == 'gateway_peer_id':
|
||||
peerID = int(_tmp.split('=')[1])
|
||||
self._config['LOCAL']['RADIO_ID'] = hex_str_3(peerID)
|
||||
print('New peer_id = ' + str(peerID))
|
||||
elif _cmd == 'restart':
|
||||
reactor.callFromThread(reactor.stop)
|
||||
elif _cmd == 'playbackFromFile':
|
||||
self.playbackFromFile('ambe.bin')
|
||||
elif _cmd == 'tgs':
|
||||
_args = _tmp.split('=')[1]
|
||||
self._tg_filter = map(int, _args.split(','))
|
||||
logger.info( 'New TGs={}'.format(self._tg_filter) )
|
||||
elif _cmd == 'dump_template':
|
||||
self.dumpTemplate('PrivateVoice.bin')
|
||||
elif _cmd == 'get_alias':
|
||||
self._sock.sendto('reply dmr_info {} {} {} {}'.format(self._currentNetwork,
|
||||
int_id(self._CONFIG[self._currentNetwork]['LOCAL']['RADIO_ID']),
|
||||
self._gateway_dmr_id,
|
||||
get_subscriber_info(hex_str_3(self._gateway_dmr_id))), (self._dmrgui, 34003))
|
||||
elif _cmd == 'eval':
|
||||
_sz = len(_tmp)-5
|
||||
_evalExpression = _tmp[-_sz:]
|
||||
_evalResult = eval(_evalExpression)
|
||||
print("eval of {} is {}".format(_evalExpression, _evalResult))
|
||||
self._sock.sendto('reply eval {}'.format(_evalResult), (self._dmrgui, 34003))
|
||||
elif _cmd == 'exec':
|
||||
_sz = len(_tmp)-5
|
||||
_evalExpression = _tmp[-_sz:]
|
||||
exec(_evalExpression)
|
||||
print("exec of {}".format(_evalExpression))
|
||||
else:
|
||||
logger.error('Unknown command')
|
||||
c.close() # Close the connection
|
||||
|
||||
|
||||
#************************************************
|
||||
# Debug: print IPSC frame on console
|
||||
#************************************************
|
||||
def dumpIPSCFrame( self, _frame ):
|
||||
|
||||
_packettype = int_id(_frame[0:1]) # int8 GROUP_VOICE, PVT_VOICE, GROUP_DATA, PVT_DATA, CALL_MON_STATUS, CALL_MON_RPT, CALL_MON_NACK, XCMP_XNL, RPT_WAKE_UP, DE_REG_REQ
|
||||
_peerid = int_id(_frame[1:5]) # int32 peer who is sending us a packet
|
||||
_ipsc_seq = int_id(_frame[5:6]) # int8 looks like a sequence number for a packet
|
||||
_src_sub = int_id(_frame[6:9]) # int32 Id of source
|
||||
_dst_sub = int_id(_frame[9:12]) # int32 Id of destination
|
||||
_call_type = int_id(_frame[12:13]) # int8 Priority Voice/Data
|
||||
_call_ctrl_info = int_id(_frame[13:17]) # int32
|
||||
_call_info = int_id(_frame[17:18]) # int8 Bits 6 and 7 defined as TS and END
|
||||
|
||||
# parse out the RTP values
|
||||
_rtp_byte_1 = int_id(_frame[18:19]) # Call Ctrl Src
|
||||
_rtp_byte_2 = int_id(_frame[19:20]) # Type
|
||||
_rtp_seq = int_id(_frame[20:22]) # Call Seq No
|
||||
_rtp_tmstmp = int_id(_frame[22:26]) # Timestamp
|
||||
_rtp_ssid = int_id(_frame[26:30]) # Sync Src Id
|
||||
|
||||
_payload_type = _frame[30] # int8 VOICE_HEAD, VOICE_TERM, SLOT1_VOICE, SLOT2_VOICE
|
||||
|
||||
_ts = bool(_call_info & TS_CALL_MSK)
|
||||
_end = bool(_call_info & END_MSK)
|
||||
|
||||
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
|
||||
print('HEAD:', h(_frame))
|
||||
if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
|
||||
|
||||
_ipsc_rssi_threshold_and_parity = int_id(_frame[31])
|
||||
_ipsc_length_to_follow = int_id(_frame[32:34])
|
||||
_ipsc_rssi_status = int_id(_frame[34])
|
||||
_ipsc_slot_type_sync = int_id(_frame[35])
|
||||
_ipsc_data_size = int_id(_frame[36:38])
|
||||
_ipsc_data = _frame[38:38+(_ipsc_length_to_follow * 2)-4]
|
||||
_ipsc_full_lc_byte1 = int_id(_frame[38])
|
||||
_ipsc_full_lc_fid = int_id(_frame[39])
|
||||
_ipsc_voice_pdu_service_options = int_id(_frame[40])
|
||||
_ipsc_voice_pdu_dst = int_id(_frame[41:44])
|
||||
_ipsc_voice_pdu_src = int_id(_frame[44:47])
|
||||
|
||||
print('{} {} {} {} {} {} {} {} {} {} {}'.format(_ipsc_rssi_threshold_and_parity,_ipsc_length_to_follow,_ipsc_rssi_status,_ipsc_slot_type_sync,_ipsc_data_size,h(_ipsc_data),_ipsc_full_lc_byte1,_ipsc_full_lc_fid,_ipsc_voice_pdu_service_options,_ipsc_voice_pdu_dst,_ipsc_voice_pdu_src))
|
||||
print('TERM:', h(_frame))
|
||||
if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
|
||||
_rtp_len = _frame[31:32]
|
||||
_ambe = _frame[33:52]
|
||||
print('SLOT1:', h(_frame))
|
||||
if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
|
||||
_rtp_len = _frame[31:32]
|
||||
_ambe = _frame[33:52]
|
||||
print('SLOT2:', h(_frame))
|
||||
print("pt={:02X} pid={} seq={:02X} src={} dst={} ct={:02X} uk={} ci={} rsq={}".format(_packettype, _peerid,_ipsc_seq, _src_sub,_dst_sub,_call_type,_call_ctrl_info,_call_info,_rtp_seq))
|
||||
|
||||
def get_subscriber_info(_src_sub):
|
||||
return get_info(int_id(_src_sub), subscriber_ids)
|
||||
|
||||
if __name__ == '__main__':
|
||||
import argparse
|
||||
import sys
|
||||
import os
|
||||
import signal
|
||||
|
||||
from ipsc.dmrlink_config import build_config
|
||||
from ipsc.dmrlink_log import config_logging
|
||||
|
||||
# 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='CFG_FILE', help='/full/path/to/config.file (usually dmrlink.cfg)')
|
||||
parser.add_argument('-ll', '--log_level', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
|
||||
parser.add_argument('-lh', '--log_handle', action='store', dest='LOG_HANDLERS', help='Override config file logging handler.')
|
||||
cli_args = parser.parse_args()
|
||||
|
||||
if not cli_args.CFG_FILE:
|
||||
cli_args.CFG_FILE = os.path.dirname(os.path.abspath(__file__))+'/dmrlink.cfg'
|
||||
|
||||
# Call the external routine to build the configuration dictionary
|
||||
CONFIG = build_config(cli_args.CFG_FILE)
|
||||
|
||||
# Call the external routing to start the system logger
|
||||
if cli_args.LOG_LEVEL:
|
||||
CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
|
||||
if cli_args.LOG_HANDLERS:
|
||||
CONFIG['LOGGER']['LOG_HANDLERS'] = cli_args.LOG_HANDLERS
|
||||
logger = config_logging(CONFIG['LOGGER'])
|
||||
logger.info('DMRlink \'dmrlink.py\' (c) 2013 - 2015 N0MJS & the K0USY Group - SYSTEM STARTING...')
|
||||
|
||||
# Set signal handers so that we can gracefully exit if need be
|
||||
def sig_handler(_signal, _frame):
|
||||
logger.info('*** DMRLINK IS TERMINATING WITH SIGNAL %s ***', str(_signal))
|
||||
for system in systems:
|
||||
systems[system].de_register_self()
|
||||
reactor.stop()
|
||||
|
||||
for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGQUIT]:
|
||||
signal.signal(sig, sig_handler)
|
||||
|
||||
# INITIALIZE THE REPORTING LOOP
|
||||
report_server = config_reports(CONFIG, logger, reportFactory)
|
||||
|
||||
# Build ID Aliases
|
||||
peer_ids, subscriber_ids, talkgroup_ids, local_ids = build_aliases(CONFIG, logger)
|
||||
|
||||
# INITIALIZE AN IPSC OBJECT (SELF SUSTAINING) FOR EACH CONFIGRUED IPSC
|
||||
systems = mk_ipsc_systems(CONFIG, logger, systems, ambeIPSC, report_server)
|
||||
|
||||
|
||||
|
||||
# INITIALIZATION COMPLETE -- START THE REACTOR
|
||||
reactor.run()
|
|
@ -1,31 +0,0 @@
|
|||
AllStar DTMF command examples:
|
||||
82=cmd,/bin/bash -c 'do something here'
|
||||
82=cmd,/bin/bash -c 'echo -n "section=Shutup" | nc 127.0.0.1 31002'
|
||||
|
||||
Shell command examples:
|
||||
# Use netcat to dynamically change ambe_audio without a restart
|
||||
# echo -n "tgs=x,y,z" | nc 127.0.0.1 31002
|
||||
# echo -n "reread_subscribers" | nc 127.0.0.1 31002
|
||||
# echo -n "reread_config" | nc 127.0.0.1 31002
|
||||
# echo -n "txTg=##" | nc 127.0.0.1 31002
|
||||
# echo -n "txTs=#" | nc 127.0.0.1 31002
|
||||
# echo -n "section=XX" | nc 127.0.0.1 31002
|
||||
|
||||
Remote control commands:
|
||||
'reread_subscribers'
|
||||
'reread_config'
|
||||
'txTg'
|
||||
'txTs'
|
||||
'section'
|
||||
'gateway_dmr_id'
|
||||
'gateway_peer_id'
|
||||
'restart'
|
||||
'playbackFromFile'
|
||||
'tgs'
|
||||
'dump_template'
|
||||
'get_info'
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,701 @@
|
|||
#!/usr/bin/env python
|
||||
#
|
||||
###############################################################################
|
||||
# Copyright (C) 2017 Mike Zingman N4IRR
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software Foundation,
|
||||
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
###############################################################################
|
||||
|
||||
'''
|
||||
'''
|
||||
|
||||
from __future__ import print_function
|
||||
|
||||
# Python modules we need
|
||||
import sys
|
||||
from bitarray import bitarray
|
||||
from bitstring import BitArray
|
||||
from bitstring import BitString
|
||||
import struct
|
||||
from time import time, sleep
|
||||
from importlib import import_module
|
||||
from binascii import b2a_hex as ahex
|
||||
from random import randint
|
||||
import sys, socket, ConfigParser, thread, traceback
|
||||
from threading import Lock
|
||||
from time import time, sleep, clock, localtime, strftime
|
||||
|
||||
# Twisted is pretty important, so I keep it separate
|
||||
from twisted.internet.protocol import DatagramProtocol
|
||||
from twisted.internet import reactor
|
||||
from twisted.internet import task
|
||||
|
||||
# Things we import from the main hblink module
|
||||
from dmr_utils.utils import hex_str_3, hex_str_4, int_id, get_alias
|
||||
from dmr_utils import decode, bptc, const, golay, qr
|
||||
import ambe_utils
|
||||
|
||||
# Does anybody read this stuff? There's a PEP somewhere that says I should do this.
|
||||
__author__ = 'Mike Zingman, N4IRR and Cortney T. Buffington, N0MJS'
|
||||
__copyright__ = 'Copyright (c) 2017 Mike Zingman N4IRR'
|
||||
__credits__ = 'Cortney T. Buffington, N0MJS; Colin Durbridge, G4EML, Steve Zingman, N4IRS; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT'
|
||||
__license__ = 'GNU GPLv3'
|
||||
__maintainer__ = 'Cort Buffington, N0MJS'
|
||||
__email__ = 'n0mjs@me.com'
|
||||
__status__ = 'pre-alpha'
|
||||
__version__ = '20170529'
|
||||
|
||||
|
||||
'''
|
||||
Take ambe from external source (ASL or IPSC) and import it into an HB network
|
||||
Take ambe from HB network and export it to a foreign network (ie IPSC or ASL)
|
||||
Need to support both slots. This means segmenting the data structures using slot based keys
|
||||
Every slot should remember its TG, slot, cc, source ID, destination ID and repeater ID
|
||||
Export should just pass through metadata unless a rule is found which could change the TG or slot being idetified.
|
||||
Import should use the current metadata (last seen) for a slot untill it sees a new set
|
||||
|
||||
The app can be configured as a master:
|
||||
This is useful when connecting a MMDVM repeater or hotspot to the network
|
||||
Configure the MMDVMHost to point to this instance
|
||||
Or a peer on an existing master
|
||||
This is useful when connecting to Brandmeister, DMRPlus or an existing HB network.
|
||||
Use this when you want to share your IPSC repeater on an HB network
|
||||
USe this when you want to use dongle mode to access Brandmeister or any HB nework
|
||||
|
||||
Import:
|
||||
Wait for metadata from external network
|
||||
Once seen, set up slot based values for source, destination and repeater IDs, color code
|
||||
For each AMBE packet from that foreign source, read the data and construct DMR and HB structures around the new metadata
|
||||
Send the HB packet to the network
|
||||
Export
|
||||
For each session, construct a metadata packet to pass to the foreign repeater with source, destination, repeater IDs, slot and CC
|
||||
Send AMBE to the foreign reprater over UDP (decorated with slot)
|
||||
At end of session signal termination to the foreign repeater
|
||||
|
||||
Translation of TG/Slot information
|
||||
Used when
|
||||
local and foreigh repeaters do not have same mapping
|
||||
Need to block export or import of a specific TG
|
||||
DMO where only one slot is supported (map import to slot 2, export to foreign specs)
|
||||
|
||||
'''
|
||||
|
||||
############################################################################################################
|
||||
# Constants
|
||||
############################################################################################################
|
||||
DMR_DATA_SYNC_MS = '\xD5\xD7\xF7\x7F\xD7\x57'
|
||||
DMR_VOICE_SYNC_MS = '0x7F7D5DD57DFD'
|
||||
|
||||
# TLV tag definitions
|
||||
TAG_BEGIN_TX = 0 # Begin transmission with optional metadata
|
||||
TAG_AMBE = 1 # AMBE frame to transmit (old tag now uses 49 or 72)
|
||||
TAG_END_TX = 2 # End transmission, close session
|
||||
TAG_TG_TUNE = 3 # Send blank start/end frames to network for a specific talk group
|
||||
TAG_PLAY_AMBE = 4 # Play an AMBE file
|
||||
TAG_REMOTE_CMD = 5 # SubCommand for remote configuration
|
||||
TAG_AMBE_49 = 6 # AMBE frame of 49 bit samples (IPSC)
|
||||
TAG_AMBE_72 = 7 # AMBE frame of 72 bit samples (HB)
|
||||
TAG_SET_INFO = 8 # Set DMR Info for slot
|
||||
|
||||
# Burst Data Types
|
||||
BURST_DATA_TYPE = {
|
||||
'VOICE_HEAD': '\x01',
|
||||
'VOICE_TERM': '\x02',
|
||||
'SLOT1_VOICE': '\x0A',
|
||||
'SLOT2_VOICE': '\x8A'
|
||||
}
|
||||
|
||||
############################################################################################################
|
||||
# Globals
|
||||
############################################################################################################
|
||||
'''
|
||||
Flag bits
|
||||
SGTT NNNN S = Slot (0 = slot 1, 1 = slot 2)
|
||||
G = Group call = 0, Private = 1
|
||||
T = Type (Voice = 00, Data Sync = 10, ,Voice Sync = 01, Unused = 11)
|
||||
NNNN = Sequence Number or data type (from slot type)
|
||||
'''
|
||||
header_flag = lambda _slot: (0xA0 if (_slot == 2) else 0x20) | ord(const.DMR_SLT_VHEAD)
|
||||
terminator_flag = lambda _slot: (0xA0 if (_slot == 2) else 0x20) | ord(const.DMR_SLT_VTERM)
|
||||
voice_flag = lambda _slot, _vf: (0x80 if (_slot == 2) else 0) | (0x10 if (_vf == 0) else 0) | _vf
|
||||
|
||||
############################################################################################################
|
||||
# Classes
|
||||
############################################################################################################
|
||||
class SLOT:
|
||||
def __init__(self, _slot, _rf_src, _dst_id, _repeater_id, _cc):
|
||||
self.rf_src = hex_str_3(_rf_src) # DMR ID of sender
|
||||
self.dst_id = hex_str_3(_dst_id) # Talk group to send to
|
||||
self.repeater_id = hex_str_4(_repeater_id) # Repeater ID
|
||||
self.slot = _slot # Slot to use
|
||||
self.cc = _cc # Color code to use
|
||||
self.type = 0 # 1=voice header, 2=voice terminator; voice, 0=burst A ... 5=burst F
|
||||
self.stream_id = hex_str_4(0) # Stream id is same across a single session
|
||||
self.frame_count = 0 # Count of frames in a session
|
||||
self.start_time = 0 # Start of session
|
||||
self.time = 0 # Current time in session. Used to calculate duration
|
||||
|
||||
class RX_SLOT(SLOT):
|
||||
def __init__(self, _slot, _rf_src, _dst_id, _repeater_id, _cc):
|
||||
SLOT.__init__(self, _slot, _rf_src, _dst_id, _repeater_id, _cc)
|
||||
self.vf = 0 # Voice Frame (A-F in DMR spec)
|
||||
self.seq = 0 # Incrementing sequence number for each DMR frame
|
||||
self.emblc = [None] * 6 # Storage for embedded LC
|
||||
|
||||
class TX_SLOT(SLOT):
|
||||
def __init__(self, _slot, _rf_src, _dst_id, _repeater_id, _cc):
|
||||
SLOT.__init__(self, _slot, _rf_src, _dst_id, _repeater_id, _cc)
|
||||
self.lastSeq = 0 # Used to look for gaps in seq numbers
|
||||
self.lostFrame = 0 # Number of lost frames in a single session
|
||||
|
||||
class AMBE_BASE:
|
||||
def __init__(self, _parent, _name, _config, _logger, _port):
|
||||
self._parent = _parent
|
||||
self._logger = _logger
|
||||
self._config = _config
|
||||
self._system = _name
|
||||
|
||||
self._gateways = [(self._parent._gateway, self._parent._gateway_port)]
|
||||
self._ambeRxPort = _port # Port to listen on for AMBE frames to transmit to all peers
|
||||
self._dmrgui = '127.0.0.1'
|
||||
|
||||
self._sock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
|
||||
|
||||
self._slot = 2 # "current slot"
|
||||
self.rx = [0, RX_SLOT(1, 0, 0, 0, 1), RX_SLOT(2, 0, 0, 0, 1)]
|
||||
self.tx = [0, TX_SLOT(1, 0, 0, 0, 1), TX_SLOT(2, 0, 0, 0, 1)]
|
||||
|
||||
class UDP_IMPORT(DatagramProtocol):
|
||||
def __init__(self, callback_function):
|
||||
self.func = callback_function
|
||||
def datagramReceived(self, _data, (_host, _port)):
|
||||
self.func(_data, (_host, _port))
|
||||
|
||||
self.udp_port = reactor.listenUDP(self._ambeRxPort, UDP_IMPORT(self.import_datagramReceived))
|
||||
|
||||
pass
|
||||
def stop_listening(self):
|
||||
self.udp_port.stopListening()
|
||||
def send_voice_header(self, _rx_slot):
|
||||
_rx_slot.vf = 0 # voice frame (A-F)
|
||||
_rx_slot.seq = 0 # Starts at zero for each incoming transmission, wraps back to zero when 256 is reached.
|
||||
_rx_slot.frame_count = 0 # Number of voice frames in this session (will be greater than zero of header is sent)
|
||||
def send_voice72(self, _rx_slot, _ambe):
|
||||
pass
|
||||
def send_voice49(self, _rx_slot, _ambe):
|
||||
pass
|
||||
def send_voice_term(self, _rx_slot):
|
||||
pass
|
||||
# Play the contents of a AMBE file to all peers. This function is expected to be launched from a thread
|
||||
def play_ambe_file(self, _fileName, _rx_slot):
|
||||
try:
|
||||
self._logger.info('(%s) play_ambe_file: %s', self._system, _fileName)
|
||||
_file = open(_fileName, 'r')
|
||||
_strSlot = struct.pack("I",_rx_slot.slot)[0]
|
||||
metadata = ahex(_rx_slot.rf_src[0:3]) + ahex(_rx_slot.repeater_id[0:4]) + ahex(_rx_slot.dst_id[0:3]) + ('%02x' % _rx_slot.slot) + ('%02x' % _rx_slot.cc)
|
||||
|
||||
self._sock.sendto(bytearray.fromhex('000C'+metadata), ('127.0.0.1', self._ambeRxPort)) # begin transmission TLV
|
||||
_notEOF = True
|
||||
while (_notEOF):
|
||||
_data = _file.read(27)
|
||||
if (_data):
|
||||
self._sock.sendto(bytearray.fromhex('071C')+_strSlot+_data, ('127.0.0.1', self._ambeRxPort)) # send AMBE72
|
||||
sleep(0.06)
|
||||
else:
|
||||
_notEOF = False
|
||||
self._sock.sendto(bytearray.fromhex('0201')+_strSlot, ('127.0.0.1', self._ambeRxPort)) # end transmission TLV
|
||||
_file.close()
|
||||
self._logger.info('(%s) File playback done', self._system)
|
||||
except:
|
||||
self._logger.error('(%s) file %s not found', self._system, _fileName)
|
||||
traceback.print_exc()
|
||||
# TG selection, send a simple blank voice frame to network
|
||||
def sendBlankAmbe(self, _rx_slot, _stream_id):
|
||||
_rx_slot.stream_id = _stream_id
|
||||
self.send_voice_header(_rx_slot)
|
||||
silence = '\xAC\AA\x40\x20\x00\x44\x40\x80\x80'
|
||||
self.send_voice72(_rx_slot, silence+silence+silence)
|
||||
self.send_voice_term(_rx_slot)
|
||||
# Twisted callback with data from socket
|
||||
def import_datagramReceived(self, _data, (_host, _port)):
|
||||
subscriber_ids, talkgroup_ids, peer_ids = self._parent.get_globals()
|
||||
self._logger.debug('(%s) import_datagramReceived', self._system)
|
||||
_slot = self._slot
|
||||
_rx_slot = self.rx[_slot]
|
||||
|
||||
# Parse out the TLV
|
||||
t = _data[0]
|
||||
if (t):
|
||||
l = _data[1]
|
||||
if (l):
|
||||
v = _data[2:]
|
||||
if (v):
|
||||
t = ord(t)
|
||||
if (t == TAG_BEGIN_TX) or (t == TAG_SET_INFO):
|
||||
|
||||
if ord(l) > 1:
|
||||
_slot = int_id(v[10:11])
|
||||
_rx_slot = self.rx[_slot]
|
||||
_rx_slot.slot = _slot
|
||||
_rx_slot.rf_src = hex_str_3(int_id(v[0:3]))
|
||||
_rx_slot.repeater_id = self._parent.get_repeater_id( hex_str_4(int_id(v[3:7])) )
|
||||
_rx_slot.dst_id = hex_str_3(int_id(v[7:10]))
|
||||
_rx_slot.cc = int_id(v[11:12])
|
||||
|
||||
if t == TAG_BEGIN_TX:
|
||||
_rx_slot.stream_id = hex_str_4(randint(0,0xFFFFFFFF)) # Every stream has a unique ID
|
||||
self._logger.info('(%s) Begin AMBE encode STREAM ID: %s SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s', \
|
||||
self._system, int_id(_rx_slot.stream_id), get_alias(_rx_slot.rf_src, subscriber_ids), int_id(_rx_slot.rf_src), get_alias(_rx_slot.repeater_id, peer_ids), int_id(_rx_slot.repeater_id), get_alias(_rx_slot.dst_id, talkgroup_ids), int_id(_rx_slot.dst_id), _slot)
|
||||
self.send_voice_header(_rx_slot)
|
||||
else:
|
||||
self._logger.info('(%s) Set DMR Info SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s', \
|
||||
self._system, get_alias(_rx_slot.rf_src, subscriber_ids), int_id(_rx_slot.rf_src), get_alias(_rx_slot.repeater_id, peer_ids), int_id(_rx_slot.repeater_id), get_alias(_rx_slot.dst_id, talkgroup_ids), int_id(_rx_slot.dst_id), _slot)
|
||||
elif ((t == TAG_AMBE) or (t == TAG_AMBE_72)): # generic AMBE or specific AMBE72
|
||||
_slot = int_id(v[0])
|
||||
_rx_slot = self.rx[_slot]
|
||||
if _rx_slot.frame_count > 0:
|
||||
self.send_voice72(_rx_slot, v[1:])
|
||||
elif (t == TAG_AMBE_49): # AMBE49
|
||||
_slot = int_id(v[0])
|
||||
_rx_slot = self.rx[_slot]
|
||||
if _rx_slot.frame_count > 0:
|
||||
self.send_voice49(_rx_slot, v[1:])
|
||||
elif (t == TAG_END_TX):
|
||||
_slot = int_id(v[0])
|
||||
_rx_slot = self.rx[_slot]
|
||||
if _rx_slot.frame_count > 0:
|
||||
self.send_voice_term(_rx_slot)
|
||||
self._logger.debug('(%s) End AMBE encode STREAM ID: %d FRAMES: %d', self._system, int_id(_rx_slot.stream_id), _rx_slot.frame_count)
|
||||
_rx_slot.frame_count = 0 # set it back to zero so any random AMBE frames are ignored.
|
||||
elif (t == TAG_TG_TUNE):
|
||||
_rx_slot.dst_id = hex_str_3(int(v.split('=')[1]))
|
||||
self._logger.info('(%s) New txTg = %d on Slot %d', self._system, int_id(_rx_slot.dst_id), _rx_slot.slot)
|
||||
self.sendBlankAmbe(_rx_slot, hex_str_4(randint(0,0xFFFFFFFF)))
|
||||
elif (t == TAG_PLAY_AMBE):
|
||||
thread.start_new_thread( self.play_ambe_file, (v.split('=')[1], _rx_slot) )
|
||||
elif (t == TAG_REMOTE_CMD):
|
||||
_tmp = v.split(None)[0] #first get rid of whitespace
|
||||
_cmd = _tmp.split('=')[0]
|
||||
if _cmd == "foobar":
|
||||
pass
|
||||
elif _cmd == 'get_info': # get section name, repeater ID, subscriber ID, subscriber callsign
|
||||
self._sock.sendto('reply dmr_info {} {} {} {}'.format(self._system,
|
||||
int_id(_rx_slot.repeater_id),
|
||||
int_id(_rx_slot.rf_src),
|
||||
get_alias(_rx_slot.rf_src, subscriber_ids)), (self._dmrgui, 34003))
|
||||
elif _cmd == 'section': # set current section to argument passed
|
||||
pass
|
||||
elif _cmd == 'tgs': # set current rx talkgroups to argument
|
||||
pass
|
||||
elif _cmd == 'txTg': # set current transmit talkgroup to argument
|
||||
_rx_slot.dst_id = hex_str_3(int(v.split('=')[1]))
|
||||
self._logger.info('(%s) New txTg = %d on Slot %d', self._system, int_id(_rx_slot.dst_id), _rx_slot.slot)
|
||||
self.sendBlankAmbe(_rx_slot, hex_str_4(randint(0,0xFFFFFFFF)))
|
||||
elif _cmd == 'txTs': # set current slot to passed argument
|
||||
self._slot = int(v.split('=')[1])
|
||||
elif _cmd == 'gateway_dmr_id':
|
||||
id = int(v.split('=')[1])
|
||||
_rx_slot.repeater_id = hex_str_4(id)
|
||||
elif _cmd == 'gateway_peer_id':
|
||||
id = int(v.split('=')[1])
|
||||
_rx_slot.rf_src = hex_str_3(id)
|
||||
|
||||
else:
|
||||
self._logger.info('(%s) unknown remote command: %s', self._system, v)
|
||||
|
||||
else:
|
||||
self._logger.info('(%s) unknown TLV t=%d, l=%d, v=%s (%s)', self._system, t, ord(l), ahex(v), v)
|
||||
else:
|
||||
self._logger.info('(%s) EOF on UDP stream', self._system)
|
||||
|
||||
# Begin export call to partner
|
||||
def begin_call(self, _slot, _src_id, _dst_id, _repeater_id, _cc, _seq, _stream_id):
|
||||
subscriber_ids, talkgroup_ids, peer_ids = self._parent.get_globals()
|
||||
_src_alias = get_alias(_src_id, subscriber_ids)
|
||||
metadata = _src_id[0:3] + _repeater_id[0:4] + _dst_id[0:3] + struct.pack("b", _slot) + struct.pack("b", _cc)
|
||||
self.send_tlv(TAG_BEGIN_TX, metadata) # start transmission
|
||||
self._sock.sendto('reply log2 {} {}'.format(_src_alias, int_id(_dst_id)), (self._dmrgui, 34003))
|
||||
self._logger.info('Voice Transmission Start on TS {} and TG {} ({}) from {}'.format(_slot, get_alias(_dst_id, talkgroup_ids), int_id(_dst_id), _src_alias))
|
||||
|
||||
_tx_slot = self.tx[_slot]
|
||||
_tx_slot.slot = _slot
|
||||
_tx_slot.rf_src = _src_id
|
||||
_tx_slot.repeater_id = _repeater_id
|
||||
_tx_slot.dst_id = _dst_id
|
||||
_tx_slot.cc = _cc
|
||||
_tx_slot.stream_id = _stream_id
|
||||
|
||||
_tx_slot.start_time = time()
|
||||
_tx_slot.frame_count = 0
|
||||
_tx_slot.lostFrame = 0
|
||||
_tx_slot.lastSeq = _seq
|
||||
|
||||
# Export voice frame to partner (actually done in sub classes for 49 or 72 bits)
|
||||
def export_voice(self, _tx_slot, _seq, _ambe):
|
||||
if _seq != (_tx_slot.lastSeq+1):
|
||||
_tx_slot.lostFrame += 1
|
||||
_tx_slot.lastSeq = _seq
|
||||
|
||||
# End export call to partner
|
||||
def end_call(self, _tx_slot):
|
||||
subscriber_ids, talkgroup_ids, peer_ids = self._parent.get_globals()
|
||||
self.send_tlv(TAG_END_TX, struct.pack("b",_tx_slot.slot)) # end transmission
|
||||
call_duration = time() - _tx_slot.start_time
|
||||
_lost_percentage = ((_tx_slot.lostFrame / float(_tx_slot.frame_count)) * 100.0) if _tx_slot.frame_count > 0 else 0.0
|
||||
self._sock.sendto("reply log" +
|
||||
strftime(" %m/%d/%y %H:%M:%S", localtime(_tx_slot.start_time)) +
|
||||
' {} {} "{}"'.format(get_alias(_tx_slot.rf_src, subscriber_ids), _tx_slot.slot, get_alias(_tx_slot.dst_id, talkgroup_ids)) +
|
||||
' {:.2f}%'.format(_lost_percentage) +
|
||||
' {:.2f}s'.format(call_duration), (self._dmrgui, 34003))
|
||||
self._logger.info('Voice Transmission End {:.2f} seconds loss rate: {:.2f}% ({}/{})'.format(call_duration, _lost_percentage, _tx_slot.frame_count - _tx_slot.lostFrame, _tx_slot.frame_count))
|
||||
def send_tlv(self, _tag, _value):
|
||||
_tlv = struct.pack("bb", _tag, len(_value)) + _value
|
||||
for _gateway in self._gateways:
|
||||
self._sock.sendto(_tlv, _gateway)
|
||||
|
||||
class AMBE_HB(AMBE_BASE):
|
||||
def __init__(self, _parent, _name, _config, _logger, _port):
|
||||
AMBE_BASE.__init__(self, _parent, _name, _config, _logger, _port)
|
||||
|
||||
self.lcss = [
|
||||
0b11111111, # not used (place holder)
|
||||
0b01, # First fragment
|
||||
0b11, # Continuation fragment
|
||||
0b11, # Continuation fragment
|
||||
0b10, # Last fragment
|
||||
0b00 # Null message
|
||||
]
|
||||
self._DMOStreamID = 0
|
||||
|
||||
def send_voice_header(self, _rx_slot):
|
||||
AMBE_BASE.send_voice_header(self, _rx_slot)
|
||||
flag = header_flag(_rx_slot.slot) # DT_VOICE_LC_HEADER
|
||||
dmr = self.encode_voice_header( _rx_slot )
|
||||
for j in range(0,2):
|
||||
self.send_frameTo_system(_rx_slot, flag, dmr)
|
||||
sleep(0.06)
|
||||
def send_voice72(self, _rx_slot, _ambe):
|
||||
flag = voice_flag(_rx_slot.slot, _rx_slot.vf) # calc flag value
|
||||
_new_frame = self.encode_voice( BitArray('0x'+ahex(_ambe)), _rx_slot ) # Construct the dmr frame from AMBE(108 bits) + sync/CACH (48 bits) + AMBE(108 bits)
|
||||
self.send_frameTo_system(_rx_slot, flag, _new_frame.tobytes())
|
||||
_rx_slot.vf = (_rx_slot.vf + 1) % 6 # the voice frame counter which is always mod 6
|
||||
def send_voice49(self, _rx_slot, _ambe):
|
||||
ambe49_1 = BitArray('0x' + ahex(_ambe[0:7]))[0:49]
|
||||
ambe49_2 = BitArray('0x' + ahex(_ambe[7:14]))[0:49]
|
||||
ambe49_3 = BitArray('0x' + ahex(_ambe[14:21]))[0:49]
|
||||
|
||||
ambe72_1 = ambe_utils.convert49BitTo72BitAMBE(ambe49_1)
|
||||
ambe72_2 = ambe_utils.convert49BitTo72BitAMBE(ambe49_2)
|
||||
ambe72_3 = ambe_utils.convert49BitTo72BitAMBE(ambe49_3)
|
||||
|
||||
v = ambe72_1 + ambe72_2 + ambe72_3
|
||||
self.send_voice72(_rx_slot, v)
|
||||
def send_voice_term(self, _rx_slot):
|
||||
flag = terminator_flag(_rx_slot.slot) # DT_TERMINATOR_WITH_LC
|
||||
dmr = self.encode_voice_term( _rx_slot )
|
||||
self.send_frameTo_system(_rx_slot, flag, dmr)
|
||||
|
||||
# Construct DMR frame, HB header and send result to all peers on network
|
||||
def send_frameTo_system(self, _rx_slot, _flag, _dmr_frame):
|
||||
frame = self.make_dmrd(_rx_slot.seq, _rx_slot.rf_src, _rx_slot.dst_id, _rx_slot.repeater_id, _flag, _rx_slot.stream_id, _dmr_frame) # Make the HB frame, ready to send
|
||||
self.send_system( _rx_slot, frame ) # Send the frame to all peers or master
|
||||
_rx_slot.seq += 1 # Convienent place for this increment
|
||||
_rx_slot.frame_count += 1 # update count (used for stats and to make sure header was sent)
|
||||
|
||||
# Override the super class because (1) DMO must be placed on slot 2 and (2) repeater_id must be the ID of the client (TODO)
|
||||
def send_system(self, _rx_slot, _frame):
|
||||
if hasattr(self._parent, '_clients'):
|
||||
_orig_flag = _frame[15] # Save off the flag since _frame is a reference
|
||||
for _client in self._parent._clients:
|
||||
_clientDict = self._parent._clients[_client]
|
||||
if _clientDict['TX_FREQ'] == _clientDict['RX_FREQ']:
|
||||
|
||||
if self._DMOStreamID == 0: # are we idle?
|
||||
self._DMOStreamID = _rx_slot.stream_id
|
||||
self._logger.info('(%s) DMO Transition from idle to stream %d', self._system, int_id(_rx_slot.stream_id))
|
||||
if _rx_slot.stream_id != self._DMOStreamID: # packet is from wrong stream?
|
||||
if (_frame[15] & 0x2F) == 0x21: # Call start?
|
||||
self._logger.info('(%s) DMO Ignore traffic on stream %d', self._system, int_id(_rx_slot.stream_id))
|
||||
continue
|
||||
if (_frame[15] & 0x2F) == 0x22: # call terminator flag?
|
||||
self._DMOStreamID = 0 # we are idle again
|
||||
self._logger.info('(%s) DMO End of call, back to IDLE', self._system)
|
||||
|
||||
_frame[15] = (_frame[15] & 0x7f) | 0x80 # force to slot 2 if client in DMO mode
|
||||
else:
|
||||
_frame[15] = _orig_flag # Use the origional flag value if not DMO
|
||||
|
||||
_repeaterID = hex_str_4( int(_clientDict['RADIO_ID']) )
|
||||
for _index in range(0,4): # Force the repeater ID to be the "destination" ID of the client (hblink will not accept it otherwise)
|
||||
_frame[_index+11] = _repeaterID[_index]
|
||||
|
||||
self._parent.send_client(_client, _frame)
|
||||
else:
|
||||
self._parent.send_master(_frame)
|
||||
|
||||
# Construct a complete HB frame from passed parameters
|
||||
def make_dmrd( self, _seq, _rf_src, _dst_id, _repeater_id, _flag, _stream_id, _dmr_frame):
|
||||
frame = bytearray('DMRD') # HB header type DMRD
|
||||
frame += struct.pack("i", _seq)[0] # add sequence number
|
||||
frame += _rf_src[0:3] # add source ID
|
||||
frame += _dst_id[0:3] # add destination ID
|
||||
frame += _repeater_id[0:4] # add repeater ID (4 bytes)
|
||||
frame += struct.pack("i", _flag)[0:1] # add flag to packet
|
||||
frame += _stream_id[0:4] # add stream ID (same for all packets in a transmission)
|
||||
frame += _dmr_frame # add the dmr frame
|
||||
frame += struct.pack("i", 0)[0:2] # add in the RSSI and err count
|
||||
return frame
|
||||
|
||||
# Private function to create a voice header or terminator DMR frame
|
||||
def __encode_voice_header( self, _rx_slot, _sync, _dtype ):
|
||||
_src_id = _rx_slot.rf_src
|
||||
_dst_id = _rx_slot.dst_id
|
||||
_cc = _rx_slot.cc
|
||||
# create lc
|
||||
lc = '\x00\x00\x00' + _dst_id + _src_id # PF + Reserved + FLCO + FID + Service Options + Group Address + Source Address
|
||||
# encode lc into info
|
||||
full_lc_encode = bptc.encode_header_lc(lc)
|
||||
_rx_slot.emblc = bptc.encode_emblc(lc) # save off the emb lc for voice frames B-E
|
||||
_rx_slot.emblc[5] = bitarray(32) # NULL message (F)
|
||||
# create slot_type
|
||||
slot_type = chr((_cc << 4) | (_dtype & 0x0f)) # data type is Header or Term
|
||||
# generate FEC for slot type
|
||||
slot_with_fec = BitArray(uint=golay.encode_2087(slot_type), length=20)
|
||||
# construct final frame - info[0:98] + slot_type[0:10] + DMR_DATA_SYNC_MS + slot_type[10:20] + info[98:196]
|
||||
frame_bits = full_lc_encode[0:98] + slot_with_fec[0:10] + decode.to_bits(_sync) + slot_with_fec[10:20] + full_lc_encode[98:196]
|
||||
return decode.to_bytes(frame_bits)
|
||||
|
||||
# Create a voice header DMR frame
|
||||
def encode_voice_header( self, _rx_slot ):
|
||||
return self.__encode_voice_header( _rx_slot, DMR_DATA_SYNC_MS, 1 ) # data_type=Voice_LC_Header
|
||||
|
||||
def encode_voice( self, _ambe1, _ambe2, _ambe3, _emb ):
|
||||
pass
|
||||
|
||||
# Create a voice DMR frame A-F frame type
|
||||
def encode_voice( self, _ambe, _rx_slot ):
|
||||
_frame_type = _rx_slot.vf
|
||||
if _frame_type > 0: # if not a SYNC frame cccxss
|
||||
index = (_rx_slot.cc << 3) | self.lcss[_frame_type] # index into the encode table makes this a simple lookup
|
||||
emb = bitarray(format(qr.ENCODE_1676[ index ], '016b')) # create emb of 16 bits
|
||||
embedded = emb[8:16] + _rx_slot.emblc[_frame_type] + emb[0:8] # Take emb and a chunk of the embedded LC and combine them into 48 bits
|
||||
else:
|
||||
embedded = BitArray(DMR_VOICE_SYNC_MS) # Voice SYNC (48 bits)
|
||||
_new_frame = _ambe[0:108] + embedded + _ambe[108:216] # Construct the dmr frame from AMBE(108 bits) + sync/emb (48 bits) + AMBE(108 bits)
|
||||
return _new_frame
|
||||
|
||||
# Create a voice terminator DMR frame
|
||||
def encode_voice_term( self, _rx_slot ):
|
||||
return self.__encode_voice_header( _rx_slot, DMR_DATA_SYNC_MS, 2 ) # data_type=Voice_LC_Terminator
|
||||
def export_voice(self, _tx_slot, _seq, _ambe):
|
||||
self.send_tlv(TAG_AMBE_72, struct.pack("b",_tx_slot.slot) + _ambe) # send AMBE
|
||||
if _seq != (_tx_slot.lastSeq+1):
|
||||
_tx_slot.lostFrame += 1
|
||||
_tx_slot.lastSeq = _seq
|
||||
|
||||
class AMBE_IPSC(AMBE_BASE):
|
||||
def __init__(self, _parent, _name, _config, _logger, _port):
|
||||
AMBE_BASE.__init__(self, _parent, _name, _config, _logger, _port)
|
||||
self._tempHead = [0] * 3 # It appears that there 3 frames of HEAD (mostly the same)
|
||||
self._tempVoice = [0] * 6
|
||||
self._tempTerm = [0]
|
||||
|
||||
self._seq = 0 # RPT Transmit frame sequence number (auto-increments for each frame). 16 bit
|
||||
self.ipsc_seq = 0 # Same for all frames in a transmit session (sould use stream_id). 8 bit
|
||||
|
||||
self.load_template()
|
||||
pass
|
||||
def send_voice_header(self, _rx_slot):
|
||||
AMBE_BASE.send_voice_header(self, _rx_slot)
|
||||
self._seq = randint(0,32767) # A transmission uses a random number to begin its sequence (16 bit)
|
||||
self.ipsc_seq = (self.ipsc_seq + 1) & 0xff # this is an 8 bit value which wraps around.
|
||||
|
||||
for i in range(0, 3): # Output the 3 HEAD frames to our peers
|
||||
self.rewriteFrame(self._tempHead[i], _rx_slot.slot, _rx_slot.dst_id, _rx_slot.rf_src, _rx_slot.repeater_id)
|
||||
sleep(0.06)
|
||||
pass
|
||||
def send_voice72(self, _rx_slot, _ambe):
|
||||
ambe72_1 = BitArray('0x' + ahex(_ambe[0:9]))[0:72]
|
||||
ambe72_2 = BitArray('0x' + ahex(_ambe[9:18]))[0:72]
|
||||
ambe72_3 = BitArray('0x' + ahex(_ambe[18:27]))[0:72]
|
||||
|
||||
ambe49_1 = ambe_utils.convert72BitTo49BitAMBE(ambe72_1)
|
||||
ambe49_2 = ambe_utils.convert72BitTo49BitAMBE(ambe72_2)
|
||||
ambe49_3 = ambe_utils.convert72BitTo49BitAMBE(ambe72_3)
|
||||
|
||||
ambe49_1.append(False)
|
||||
ambe49_2.append(False)
|
||||
ambe49_3.append(False)
|
||||
|
||||
ambe = ambe49_1 + ambe49_2 + ambe49_3
|
||||
_frame = self._tempVoice[_rx_slot.vf][:33] + ambe.tobytes() + self._tempVoice[_rx_slot.vf][52:] # Insert the 3 49 bit AMBE frames
|
||||
self.rewriteFrame(_frame, _rx_slot.slot, _rx_slot.dst_id, _rx_slot.rf_src, _rx_slot.repeater_id)
|
||||
_rx_slot.vf = (_rx_slot.vf + 1) % 6 # the voice frame counter which is always mod 6
|
||||
pass
|
||||
def send_voice49(self, _rx_slot, _ambe):
|
||||
ambe49_1 = BitArray('0x' + ahex(_ambe[0:7]))[0:50]
|
||||
ambe49_2 = BitArray('0x' + ahex(_ambe[7:14]))[0:50]
|
||||
ambe49_3 = BitArray('0x' + ahex(_ambe[14:21]))[0:50]
|
||||
ambe = ambe49_1 + ambe49_2 + ambe49_3
|
||||
|
||||
_frame = _tempVoice[_rx_slot.vf][:33] + ambe.tobytes() + self._tempVoice[_rx_slot.vf][52:] # Insert the 3 49 bit AMBE frames
|
||||
self.rewriteFrame(_frame, _rx_slot.slot, _rx_slot.dst_id, _rx_slot.rf_src, _rx_slot.repeater_id)
|
||||
_rx_slot.vf = (_rx_slot.vf + 1) % 6 # the voice frame counter which is always mod 6
|
||||
pass
|
||||
def send_voice_term(self, _rx_slot):
|
||||
self.rewriteFrame(self._tempTerm, _rx_slot.slot, _rx_slot.dst_id, _rx_slot.rf_src, _rx_slot.repeater_id)
|
||||
pass
|
||||
def rewriteFrame( self, _frame, _newSlot, _newGroup, _newSouceID, _newPeerID ):
|
||||
|
||||
_peerid = _frame[1:5] # int32 peer who is sending us a packet
|
||||
_src_sub = _frame[6:9] # int32 Id of source
|
||||
_burst_data_type = _frame[30]
|
||||
_group = _frame[9:12]
|
||||
|
||||
########################################################################
|
||||
# re-Write the peer radio ID to that of this program
|
||||
_frame = _frame.replace(_peerid, _newPeerID)
|
||||
# re-Write the source subscriber ID to that of this program
|
||||
_frame = _frame.replace(_src_sub, _newSouceID)
|
||||
# Re-Write the destination Group ID
|
||||
_frame = _frame.replace(_group, _newGroup)
|
||||
_frame = _frame[:5] + struct.pack("i", self.ipsc_seq)[0] + _frame[6:] # ipsc sequence number increments on each transmission (stream id)
|
||||
|
||||
# Re-Write IPSC timeslot value
|
||||
_call_info = int_id(_frame[17:18])
|
||||
if _newSlot == 1:
|
||||
_call_info &= ~(1 << 5)
|
||||
elif _newSlot == 2:
|
||||
_call_info |= 1 << 5
|
||||
_call_info = chr(_call_info)
|
||||
_frame = _frame[:17] + _call_info + _frame[18:]
|
||||
|
||||
_x = struct.pack("i", self._seq)
|
||||
_frame = _frame[:20] + _x[1] + _x[0] + _frame[22:] # rtp sequence number increments for EACH frame sent out
|
||||
self._seq = self._seq + 1
|
||||
|
||||
# Re-Write DMR timeslot value
|
||||
# Determine if the slot is present, so we can translate if need be
|
||||
if _burst_data_type == BURST_DATA_TYPE['SLOT1_VOICE'] or _burst_data_type == BURST_DATA_TYPE['SLOT2_VOICE']:
|
||||
# Re-Write timeslot if necessary...
|
||||
if _newSlot == 1:
|
||||
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
|
||||
elif _newSlot == 2:
|
||||
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
|
||||
_frame = _frame[:30] + _burst_data_type + _frame[31:]
|
||||
|
||||
if (time() - self._parent._busy_slots[_newSlot]) >= 0.10 : # slot is not busy so it is safe to transmit
|
||||
# Send the packet to all peers in the target IPSC
|
||||
self._parent.send_to_ipsc(_frame)
|
||||
else:
|
||||
self._logger.info('Slot {} is busy, will not transmit packet from gateway'.format(_newSlot))
|
||||
self.rx[_newSlot].frame_count += 1 # update count (used for stats and to make sure header was sent)
|
||||
|
||||
# Read a record from the captured IPSC file looking for a payload type that matches the filter
|
||||
def readRecord(self, _file, _match_type):
|
||||
_notEOF = True
|
||||
# _file.seek(0)
|
||||
while (_notEOF):
|
||||
_data = ""
|
||||
_bLen = _file.read(4)
|
||||
if _bLen:
|
||||
_len, = struct.unpack("i", _bLen)
|
||||
if _len > 0:
|
||||
_data = _file.read(_len)
|
||||
_payload_type = _data[30]
|
||||
if _payload_type == _match_type:
|
||||
return _data
|
||||
else:
|
||||
_notEOF = False
|
||||
else:
|
||||
_notEOF = False
|
||||
return _data
|
||||
def load_template(self):
|
||||
try:
|
||||
_t = open('template.bin', 'rb') # Open the template file. This was recorded OTA
|
||||
|
||||
for i in range(0, 3):
|
||||
self._tempHead[i] = self.readRecord(_t, BURST_DATA_TYPE['VOICE_HEAD'])
|
||||
|
||||
for i in range(0, 6): # Then there are 6 frames of AMBE. We will just use them in order
|
||||
self._tempVoice[i] = self.readRecord(_t, BURST_DATA_TYPE['SLOT2_VOICE'])
|
||||
|
||||
self._tempTerm = self.readRecord(_t, BURST_DATA_TYPE['VOICE_TERM'])
|
||||
_t.close()
|
||||
except IOError:
|
||||
self._logger.error('Can not open template.bin file')
|
||||
return
|
||||
self._logger.debug('IPSC templates loaded')
|
||||
def export_voice(self, _tx_slot, _seq, _ambe):
|
||||
self.send_tlv(TAG_AMBE_49, struct.pack("b",_tx_slot.slot) + _ambe) # send AMBE
|
||||
if _seq != (_tx_slot.lastSeq+1):
|
||||
_tx_slot.lostFrame += 1
|
||||
_tx_slot.lastSeq = _seq
|
||||
|
||||
|
||||
############################################################################################################
|
||||
# MAIN PROGRAM LOOP STARTS HERE
|
||||
############################################################################################################
|
||||
|
||||
class TEST_HARNESS:
|
||||
def get_globals(self):
|
||||
return (subscriber_ids, talkgroup_ids, peer_ids)
|
||||
def get_repeater_id(self, import_id):
|
||||
return import_id
|
||||
def error(self, *_str):
|
||||
print('Error', _str[0] % _str[1:])
|
||||
def info(self, *_str):
|
||||
print('Info', _str[0] % _str[1:])
|
||||
def debug(self, *_str):
|
||||
print('Debug', _str[0] % _str[1:])
|
||||
def send_system(self, _frame):
|
||||
print('send system', ahex(_frame),'\n')
|
||||
def send_to_ipsc(self, _frame):
|
||||
print('send_to_ipsc', ahex(_frame),'\n')
|
||||
def play_thread(self,obj):
|
||||
obj.play_ambe_file('ambe_capture.bin', obj.rx[1])
|
||||
obj.stop_listening()
|
||||
def runTest(self, obj):
|
||||
obj._logger.info('mike was here')
|
||||
_rx_slot = obj.rx[1]
|
||||
|
||||
_rx_slot.slot = 1
|
||||
_rx_slot.rf_src = hex_str_3(3113043)
|
||||
_rx_slot.repeater_id = hex_str_4(311317)
|
||||
_rx_slot.dst_id = hex_str_3(9)
|
||||
_rx_slot.cc = 1
|
||||
|
||||
obj.sendBlankAmbe(_rx_slot, hex_str_4(randint(0,0xFFFFFFFF)))
|
||||
thread.start_new_thread( self.play_thread, (obj,) )
|
||||
def testIPSC(self):
|
||||
self._busy_slots = [0,0,0] # Keep track of activity on each slot. Make sure app is polite
|
||||
self.runTest( AMBE_IPSC(self, 'TEST_HARNESS', '', self, 37003) )
|
||||
def testHB(self):
|
||||
self.runTest( AMBE_HB(self, 'TEST_HARNESS', '', self, 37003) )
|
||||
|
||||
if __name__ == '__main__':
|
||||
subscriber_ids = {3113043:'N4IRR'}
|
||||
peer_ids = {311317:'N4IRR'}
|
||||
talkgroup_ids = {9:'Non-Routed'}
|
||||
|
||||
harness = TEST_HARNESS()
|
||||
##harness.testHB()
|
||||
##harness.testIPSC()
|
||||
## I am too lazy to do a state machine
|
||||
task.deferLater(reactor, 1, harness.testHB)
|
||||
task.deferLater(reactor, 15, harness.testIPSC)
|
||||
task.deferLater(reactor, 30, reactor.stop)
|
||||
|
||||
reactor.run()
|
|
@ -0,0 +1,279 @@
|
|||
#!/usr/bin/env python
|
||||
#
|
||||
###############################################################################
|
||||
# Copyright (C) 2017 Mike Zingman N4IRR
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software Foundation,
|
||||
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
###############################################################################
|
||||
|
||||
'''
|
||||
'''
|
||||
from binascii import b2a_hex as ahex
|
||||
from bitarray import bitarray
|
||||
from bitstring import BitArray
|
||||
from bitstring import BitString
|
||||
|
||||
__author__ = 'Mike Zingman, N4IRR and Cortney T. Buffington, N0MJS'
|
||||
__copyright__ = 'Copyright (c) 2017 Mike Zingman N4IRR'
|
||||
__credits__ = 'Cortney T. Buffington, N0MJS; Colin Durbridge, G4EML, Steve Zingman, N4IRS; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT'
|
||||
__license__ = 'GNU GPLv3'
|
||||
__maintainer__ = 'Cort Buffington, N0MJS'
|
||||
__email__ = 'n0mjs@me.com'
|
||||
__status__ = 'pre-alpha'
|
||||
__version__ = '20170508'
|
||||
|
||||
##
|
||||
# DMR AMBE interleave schedule
|
||||
##
|
||||
rW = [
|
||||
0, 1, 0, 1, 0, 1,
|
||||
0, 1, 0, 1, 0, 1,
|
||||
0, 1, 0, 1, 0, 1,
|
||||
0, 1, 0, 1, 0, 2,
|
||||
0, 2, 0, 2, 0, 2,
|
||||
0, 2, 0, 2, 0, 2
|
||||
]
|
||||
|
||||
rX = [
|
||||
23, 10, 22, 9, 21, 8,
|
||||
20, 7, 19, 6, 18, 5,
|
||||
17, 4, 16, 3, 15, 2,
|
||||
14, 1, 13, 0, 12, 10,
|
||||
11, 9, 10, 8, 9, 7,
|
||||
8, 6, 7, 5, 6, 4
|
||||
]
|
||||
|
||||
rY = [
|
||||
0, 2, 0, 2, 0, 2,
|
||||
0, 2, 0, 3, 0, 3,
|
||||
1, 3, 1, 3, 1, 3,
|
||||
1, 3, 1, 3, 1, 3,
|
||||
1, 3, 1, 3, 1, 3,
|
||||
1, 3, 1, 3, 1, 3
|
||||
]
|
||||
|
||||
rZ = [
|
||||
5, 3, 4, 2, 3, 1,
|
||||
2, 0, 1, 13, 0, 12,
|
||||
22, 11, 21, 10, 20, 9,
|
||||
19, 8, 18, 7, 17, 6,
|
||||
16, 5, 15, 4, 14, 3,
|
||||
13, 2, 12, 1, 11, 0
|
||||
]
|
||||
|
||||
|
||||
# This function calculates [23,12] Golay codewords.
|
||||
# The format of the returned longint is [checkbits(11),data(12)].
|
||||
def golay2312(cw):
|
||||
POLY = 0xAE3 #/* or use the other polynomial, 0xC75 */
|
||||
cw = cw & 0xfff # Strip off check bits and only use data
|
||||
c = cw #/* save original codeword */
|
||||
for i in range(1,13): #/* examine each data bit */
|
||||
if (cw & 1): #/* test data bit */
|
||||
cw = cw ^ POLY #/* XOR polynomial */
|
||||
cw = cw >> 1 #/* shift intermediate result */
|
||||
return((cw << 12) | c) #/* assemble codeword */
|
||||
|
||||
# This function checks the overall parity of codeword cw.
|
||||
# If parity is even, 0 is returned, else 1.
|
||||
def parity(cw):
|
||||
#/* XOR the bytes of the codeword */
|
||||
p = cw & 0xff
|
||||
p = p ^ ((cw >> 8) & 0xff)
|
||||
p = p ^ ((cw >> 16) & 0xff)
|
||||
|
||||
#/* XOR the halves of the intermediate result */
|
||||
p = p ^ (p >> 4)
|
||||
p = p ^ (p >> 2)
|
||||
p = p ^ (p >> 1)
|
||||
|
||||
#/* return the parity result */
|
||||
return(p & 1)
|
||||
|
||||
# Demodulate ambe frame (C1)
|
||||
# Frame is an array [4][24]
|
||||
def demodulateAmbe3600x2450(ambe_fr):
|
||||
pr = [0] * 115
|
||||
foo = 0
|
||||
|
||||
# create pseudo-random modulator
|
||||
for i in range(23, 11, -1):
|
||||
foo = foo << 1
|
||||
foo = foo | ambe_fr[0][i]
|
||||
pr[0] = (16 * foo)
|
||||
for i in range(1, 24):
|
||||
pr[i] = (173 * pr[i - 1]) + 13849 - (65536 * (((173 * pr[i - 1]) + 13849) / 65536))
|
||||
for i in range(1, 24):
|
||||
pr[i] = pr[i] / 32768
|
||||
|
||||
# demodulate ambe_fr with pr
|
||||
k = 1
|
||||
for j in range(22, -1, -1):
|
||||
ambe_fr[1][j] = ((ambe_fr[1][j]) ^ pr[k])
|
||||
k = k + 1
|
||||
return ambe_fr # Pass it back since there is no pass by reference
|
||||
|
||||
def eccAmbe3600x2450Data(ambe_fr):
|
||||
ambe = bitarray()
|
||||
|
||||
# just copy C0
|
||||
for j in range(23, 11, -1):
|
||||
ambe.append(ambe_fr[0][j])
|
||||
|
||||
# # ecc and copy C1
|
||||
# gin = 0
|
||||
# for j in range(23):
|
||||
# gin = (gin << 1) | ambe_fr[1][j]
|
||||
#
|
||||
# gout = BitArray(hex(golay2312(gin)))
|
||||
# for j in range(22, 10, -1):
|
||||
# ambe[bitIndex] = gout[j]
|
||||
# bitIndex += 1
|
||||
for j in range(22, 10, -1):
|
||||
ambe.append(ambe_fr[1][j])
|
||||
|
||||
# just copy C2
|
||||
for j in range(10, -1, -1):
|
||||
ambe.append(ambe_fr[2][j])
|
||||
|
||||
# just copy C3
|
||||
for j in range(13, -1, -1):
|
||||
ambe.append(ambe_fr[3][j])
|
||||
|
||||
return ambe
|
||||
|
||||
# Convert a 49 bit raw AMBE frame into a deinterleaved structure (ready for decode by AMBE3000)
|
||||
def convert49BitAmbeTo72BitFrames( ambe_d ):
|
||||
index = 0
|
||||
ambe_fr = [[None for x in range(24)] for y in range(4)]
|
||||
|
||||
#Place bits into the 4x24 frames. [bit0...bit23]
|
||||
#fr0: [P e10 e9 e8 e7 e6 e5 e4 e3 e2 e1 e0 11 10 9 8 7 6 5 4 3 2 1 0]
|
||||
#fr1: [e10 e9 e8 e7 e6 e5 e4 e3 e2 e1 e0 23 22 21 20 19 18 17 16 15 14 13 12 xx]
|
||||
#fr2: [34 33 32 31 30 29 28 27 26 25 24 x x x x x x x x x x x x x]
|
||||
#fr3: [48 47 46 45 44 43 42 41 40 39 38 37 36 35 x x x x x x x x x x]
|
||||
|
||||
# ecc and copy C0: 12bits + 11ecc + 1 parity
|
||||
# First get the 12 bits that actually exist
|
||||
# Then calculate the golay codeword
|
||||
# And then add the parity bit to get the final 24 bit pattern
|
||||
|
||||
tmp = 0
|
||||
for i in range(11, -1, -1): #grab the 12 MSB
|
||||
tmp = (tmp << 1) | ambe_d[i]
|
||||
tmp = golay2312(tmp) #Generate the 23 bit result
|
||||
parityBit = parity(tmp)
|
||||
tmp = tmp | (parityBit << 23) #And create a full 24 bit value
|
||||
for i in range(23, -1, -1):
|
||||
ambe_fr[0][i] = (tmp & 1)
|
||||
tmp = tmp >> 1
|
||||
|
||||
# C1: 12 bits + 11ecc (no parity)
|
||||
tmp = 0
|
||||
for i in range(23,11, -1) : #grab the next 12 bits
|
||||
tmp = (tmp << 1) | ambe_d[i]
|
||||
tmp = golay2312(tmp) #Generate the 23 bit result
|
||||
for j in range(22, -1, -1):
|
||||
ambe_fr[1][j] = (tmp & 1)
|
||||
tmp = tmp >> 1;
|
||||
|
||||
#C2: 11 bits (no ecc)
|
||||
for j in range(10, -1, -1):
|
||||
ambe_fr[2][j] = ambe_d[34 - j]
|
||||
|
||||
#C3: 14 bits (no ecc)
|
||||
for j in range(13, -1, -1):
|
||||
ambe_fr[3][j] = ambe_d[48 - j];
|
||||
|
||||
return ambe_fr
|
||||
|
||||
def interleave(ambe_fr):
|
||||
bitIndex = 0
|
||||
w = 0
|
||||
x = 0
|
||||
y = 0
|
||||
z = 0
|
||||
data = bytearray(9)
|
||||
for i in range(36):
|
||||
bit1 = ambe_fr[rW[w]][rX[x]] # bit 1
|
||||
bit0 = ambe_fr[rY[y]][rZ[z]] # bit 0
|
||||
|
||||
|
||||
data[bitIndex / 8] = ((data[bitIndex / 8] << 1) & 0xfe) | (1 if (bit1 == 1) else 0)
|
||||
bitIndex += 1
|
||||
|
||||
data[bitIndex / 8] = ((data[bitIndex / 8] << 1) & 0xfe) | (1 if (bit0 == 1) else 0)
|
||||
bitIndex += 1
|
||||
|
||||
w += 1
|
||||
x += 1
|
||||
y += 1
|
||||
z += 1
|
||||
return data
|
||||
|
||||
def deinterleave(data):
|
||||
|
||||
ambe_fr = [[None for x in range(24)] for y in range(4)]
|
||||
|
||||
bitIndex = 0
|
||||
w = 0
|
||||
x = 0
|
||||
y = 0
|
||||
z = 0
|
||||
for i in range(36):
|
||||
bit1 = 1 if data[bitIndex] else 0
|
||||
bitIndex += 1
|
||||
|
||||
bit0 = 1 if data[bitIndex] else 0
|
||||
bitIndex += 1
|
||||
|
||||
ambe_fr[rW[w]][rX[x]] = bit1; # bit 1
|
||||
ambe_fr[rY[y]][rZ[z]] = bit0; # bit 0
|
||||
|
||||
w += 1
|
||||
x += 1
|
||||
y += 1
|
||||
z += 1
|
||||
|
||||
return ambe_fr
|
||||
|
||||
def convert72BitTo49BitAMBE( ambe72 ):
|
||||
ambe_fr = deinterleave(ambe72) # take 72 bit ambe and lay it out in C0-C3
|
||||
ambe_fr = demodulateAmbe3600x2450(ambe_fr) # demodulate C1
|
||||
ambe49 = eccAmbe3600x2450Data(ambe_fr) # pick out the 49 bits of raw ambe
|
||||
return ambe49
|
||||
|
||||
def convert49BitTo72BitAMBE( ambe49 ):
|
||||
ambe_fr = convert49BitAmbeTo72BitFrames(ambe49) # take raw ambe 49 + ecc and place it into C0-C3
|
||||
ambe_fr = demodulateAmbe3600x2450(ambe_fr) # demodulate C1
|
||||
ambe72 = interleave(ambe_fr); # Re-interleave it, returning 72 bits
|
||||
return ambe72
|
||||
|
||||
def testit():
|
||||
ambe72 = BitArray('0xACAA40200044408080') #silence frame
|
||||
print('ambe72=',ambe72)
|
||||
|
||||
ambe49 = convert72BitTo49BitAMBE(ambe72)
|
||||
print('ambe49=',ahex(ambe49))
|
||||
|
||||
ambe72 = convert49BitTo72BitAMBE(ambe49)
|
||||
print('ambe72=',ahex(ambe72))
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# Used to execute the module directly to run built-in tests
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
if __name__ == '__main__':
|
||||
testit()
|
Loading…
Reference in New Issue