1108 lines
65 KiB
Python
Executable File
1108 lines
65 KiB
Python
Executable File
#!/usr/bin/env python
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#
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###############################################################################
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# Copyright (C) 2016-2019 Cortney T. Buffington, N0MJS <n0mjs@me.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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'''
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This program does very little on its own. It is intended to be used as a module
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to build applications on top of the HomeBrew Repeater Protocol. By itself, it
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will only act as a peer or master for the systems specified in its configuration
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file (usually hblink.cfg). It is ALWAYS best practice to ensure that this program
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works stand-alone before troubleshooting any applications that use it. It has
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sufficient logging to be used standalone as a troubleshooting application.
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'''
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# Specifig functions from modules we need
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from binascii import b2a_hex as ahex
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from binascii import a2b_hex as bhex
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from random import randint
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from hashlib import sha256, sha1
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from hmac import new as hmac_new, compare_digest
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from time import time
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from collections import deque
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# Twisted is pretty important, so I keep it separate
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from twisted.internet.protocol import DatagramProtocol, Factory, Protocol
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from twisted.protocols.basic import NetstringReceiver
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from twisted.internet import reactor, task
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# Other files we pull from -- this is mostly for readability and segmentation
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import log
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import config
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from config import acl_build
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from const import *
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from dmr_utils3.utils import int_id, bytes_4, try_download, mk_id_dict
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# Imports for the reporting server
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import pickle
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from reporting_const import *
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# The module needs logging logging, but handlers, etc. are controlled by the parent
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import logging
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logger = logging.getLogger(__name__)
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# Used for user auth
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import os, ast
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import requests, json
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import base64
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import libscrc
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import re
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# Encryption library
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from cryptography.fernet import Fernet
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# Does anybody read this stuff? There's a PEP somewhere that says I should do this.
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__author__ = 'Cortney T. Buffington, N0MJS'
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__copyright__ = 'Copyright (c) 2016-2019 Cortney T. Buffington, N0MJS and the K0USY Group'
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__credits__ = 'Colin Durbridge, G4EML, Steve Zingman, N4IRS; Mike Zingman, N4IRR; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT'
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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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# Global variables used whether we are a module or __main__
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systems = {}
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# Functions that provide a basic symetrical encryption using Fernet
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def encrypt_packet(key, message):
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f = Fernet(key)
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token = f.encrypt(message)
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return token
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def decrypt_packet(key, message):
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f = Fernet(key)
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token = f.decrypt(message, ttl=1)
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return token
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# Timed loop used for reporting HBP status
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def config_reports(_config, _factory):
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def reporting_loop(_logger, _server):
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_logger.debug('(GLOBAL) Periodic reporting loop started')
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_server.send_config()
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logger.info('(GLOBAL) HBlink TCP reporting server configured')
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report_server = _factory(_config)
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report_server.clients = []
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reactor.listenTCP(_config['REPORTS']['REPORT_PORT'], report_server)
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reporting = task.LoopingCall(reporting_loop, logger, report_server)
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reporting.start(_config['REPORTS']['REPORT_INTERVAL'])
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return report_server
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# Shut ourselves down gracefully by disconnecting from the masters and peers.
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def hblink_handler(_signal, _frame):
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for system in systems:
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logger.info('(GLOBAL) SHUTDOWN: DE-REGISTER SYSTEM: %s', system)
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systems[system].dereg()
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# Check a supplied ID against the ACL provided. Returns action (True|False) based
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# on matching and the action specified.
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def acl_check(_id, _acl):
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id = int_id(_id)
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for entry in _acl[1]:
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if entry[0] <= id <= entry[1]:
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return _acl[0]
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return not _acl[0]
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def download_burnlist(_CONFIG):
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user_man_url = _CONFIG['WEB_SERVICE']['URL']
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shared_secret = str(sha256(_CONFIG['WEB_SERVICE']['SHARED_SECRET'].encode()).hexdigest())
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burn_check = {
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'burn_list':True,
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'secret':shared_secret
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}
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json_object = json.dumps(burn_check, indent = 4)
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try:
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req = requests.post(user_man_url, data=json_object, headers={'Content-Type': 'application/json'})
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resp = json.loads(req.text)
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return resp['burn_list']
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# For exception, write blank dict
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except requests.ConnectionError:
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return {}
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#************************************************
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# OPENBRIDGE CLASS
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#************************************************
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class OPENBRIDGE(DatagramProtocol):
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def __init__(self, _name, _config, _report):
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# Define a few shortcuts to make the rest of the class more readable
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self._CONFIG = _config
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self._system = _name
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self._report = _report
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self._config = self._CONFIG['SYSTEMS'][self._system]
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self._laststrid = deque([], 20)
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def dereg(self):
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logger.info('(%s) is mode OPENBRIDGE. No De-Registration required, continuing shutdown', self._system)
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def send_system(self, _packet):
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if _packet[:4] == DMRD or _packet[:4] == EOBP:
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#_packet = _packet[:11] + self._config['NETWORK_ID'] + _packet[15:]
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_packet = b''.join([_packet[:11], self._config['NETWORK_ID'], _packet[15:]])
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#_packet += hmac_new(self._config['PASSPHRASE'],_packet,sha1).digest()
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_packet = b''.join([_packet, (hmac_new(self._config['PASSPHRASE'],_packet,sha1).digest())])
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if self._config['USE_ENCRYPTION'] == True or _packet[:4] == EOBP:
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_enc_pkt = encrypt_packet(self._config['ENCRYPTION_KEY'], _packet)
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_packet = b'EOBP' + _enc_pkt
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self.transport.write(_packet, (self._config['TARGET_IP'], self._config['TARGET_PORT']))
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# KEEP THE FOLLOWING COMMENTED OUT UNLESS YOU'RE DEBUGGING DEEPLY!!!!
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# logger.debug('(%s) TX Packet to OpenBridge %s:%s -- %s', self._system, self._config['TARGET_IP'], self._config['TARGET_PORT'], ahex(_packet))
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# Special Server Data packet, encrypted using frenet, send
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elif _packet[:4] == SVRD:
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_enc_pkt = encrypt_packet(self._config['ENCRYPTION_KEY'], _packet)
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_packet = b'SVRD' + _enc_pkt
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self.transport.write(_packet, (self._config['TARGET_IP'], self._config['TARGET_PORT']))
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logger.info('SVRD packet')
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else:
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logger.error('(%s) OpenBridge system was asked to send non DMRD packet: %s', self._system, _packet)
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def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
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pass
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#print(int_id(_peer_id), int_id(_rf_src), int_id(_dst_id), int_id(_seq), _slot, _call_type, _frame_type, repr(_dtype_vseq), int_id(_stream_id))
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def svrd_received(self, _mode, _data):
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pass
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def datagramReceived(self, _packet, _sockaddr):
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## print(_packet[:4])
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# Keep This Line Commented Unless HEAVILY Debugging!
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## logger.debug('(%s) RX packet from %s -- %s', self._system, _sockaddr, ahex(_packet))
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if _packet[:4] == DMRD or _packet[:4] == EOBP:
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if _packet[:4] == EOBP:
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_d_pkt = decrypt_packet(self._config['ENCRYPTION_KEY'], _packet[4:])
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_packet = _d_pkt
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# DMRData -- encapsulated DMR data frame
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if _packet[:4] == DMRD:
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_data = _packet[:53]
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_hash = _packet[53:]
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_ckhs = hmac_new(self._config['PASSPHRASE'],_data,sha1).digest()
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if compare_digest(_hash, _ckhs) and _sockaddr == self._config['TARGET_SOCK']:
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_peer_id = _data[11:15]
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_seq = _data[4]
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_rf_src = _data[5:8]
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_dst_id = _data[8:11]
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_bits = _data[15]
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_slot = 2 if (_bits & 0x80) else 1
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#_call_type = 'unit' if (_bits & 0x40) else 'group'
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if _bits & 0x40:
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_call_type = 'unit'
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elif (_bits & 0x23) == 0x23:
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_call_type = 'vcsbk'
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else:
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_call_type = 'group'
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_frame_type = (_bits & 0x30) >> 4
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_dtype_vseq = (_bits & 0xF) # data, 1=voice header, 2=voice terminator; voice, 0=burst A ... 5=burst F
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_stream_id = _data[16:20]
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#logger.debug('(%s) DMRD - Seqence: %s, RF Source: %s, Destination ID: %s', self._system, int_id(_seq), int_id(_rf_src), int_id(_dst_id))
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# Sanity check for OpenBridge -- all calls must be on Slot 1 for Brandmeister or DMR+. Other HBlinks can process timeslot on OPB if the flag is set
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if _slot != 1 and not self._config['BOTH_SLOTS'] and not _call_type == 'unit':
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logger.error('(%s) OpenBridge packet discarded because it was not received on slot 1. SID: %s, TGID %s', self._system, int_id(_rf_src), int_id(_dst_id))
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return
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# ACL Processing
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if self._CONFIG['GLOBAL']['USE_ACL']:
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if not acl_check(_rf_src, self._CONFIG['GLOBAL']['SUB_ACL']):
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if _stream_id not in self._laststrid:
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logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY GLOBAL ACL', self._system, int_id(_stream_id), int_id(_rf_src))
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self._laststrid.append(_stream_id)
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return
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if _slot == 1 and not acl_check(_dst_id, self._CONFIG['GLOBAL']['TG1_ACL']):
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if _stream_id not in self._laststrid:
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logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY GLOBAL TS1 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
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self._laststrid.append(_stream_id)
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return
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if self._config['USE_ACL']:
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if not acl_check(_rf_src, self._config['SUB_ACL']):
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if _stream_id not in self._laststrid:
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logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY SYSTEM ACL', self._system, int_id(_stream_id), int_id(_rf_src))
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self._laststrid.append(_stream_id)
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return
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if not acl_check(_dst_id, self._config['TG1_ACL']):
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if _stream_id not in self._laststrid:
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logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY SYSTEM ACL', self._system, int_id(_stream_id), int_id(_dst_id))
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self._laststrid.append(_stream_id)
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return
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# Userland actions -- typically this is the function you subclass for an application
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self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data)
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else:
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if not compare_digest(_hash, _ckhs):
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logger.info('(%s) OpenBridge HMAC failed, packet discarded - OPCODE: %s DATA: %s HMAC LENGTH: %s HMAC: %s', self._system, _packet[:4], repr(_packet[:53]), len(_packet[53:]), repr(_packet[53:]))
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if not _sockaddr == self._config['TARGET_SOCK']:
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logger.info('(%s) OpenBridge socket mismatch, packet discarded - OPCODE: %s DATA: %s ', self._system, _packet[:4], repr(_packet[:53]))
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# Server Data packet, decrypt and process it.
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elif _packet[:4] == SVRD:
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_d_pkt = decrypt_packet(self._config['ENCRYPTION_KEY'], _packet[4:])
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## logger.info('SVRD Received: ' + str(_d_pkt))
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# DMR Data packet, sent via SVRD
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## if _d_pkt[4:8] == b'DATA':
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## print('----------------------')
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## _data = _d_pkt[4:]
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## _peer_id = _data[11:15]
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## _seq = _data[4]
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## _rf_src = _data[5:8]
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## _dst_id = _data[8:11]
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## _bits = _data[15]
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## _slot = 2 if (_bits & 0x80) else 1
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## #_call_type = 'unit' if (_bits & 0x40) else 'group'
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## if _bits & 0x40:
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## _call_type = 'unit'
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## elif (_bits & 0x23) == 0x23:
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## _call_type = 'vcsbk'
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## else:
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## _call_type = 'group'
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## _frame_type = (_bits & 0x30) >> 4
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## _dtype_vseq = (_bits & 0xF) # data, 1=voice header, 2=voice terminator; voice, 0=burst A ... 5=burst F
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## _stream_id = _data[16:20]
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## print(_stream_id)
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##
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## print(_call_type)
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## self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data)
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## else:
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self.svrd_received(_d_pkt[4:8], _d_pkt[8:])
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#************************************************
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# HB MASTER CLASS
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#************************************************
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class HBSYSTEM(DatagramProtocol):
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def __init__(self, _name, _config, _report):
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# Define a few shortcuts to make the rest of the class more readable
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self._CONFIG = _config
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self._system = _name
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self._report = _report
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self._config = self._CONFIG['SYSTEMS'][self._system]
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self._laststrid = {1: b'', 2: b''}
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# Define shortcuts and generic function names based on the type of system we are
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if self._config['MODE'] == 'MASTER':
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self._peers = self._CONFIG['SYSTEMS'][self._system]['PEERS']
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self.send_system = self.send_peers
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self.maintenance_loop = self.master_maintenance_loop
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self.datagramReceived = self.master_datagramReceived
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self.dereg = self.master_dereg
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elif self._config['MODE'] == 'PEER':
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self._stats = self._config['STATS']
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self.send_system = self.send_master
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self.maintenance_loop = self.peer_maintenance_loop
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self.datagramReceived = self.peer_datagramReceived
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self.dereg = self.peer_dereg
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elif self._config['MODE'] == 'XLXPEER':
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self._stats = self._config['XLXSTATS']
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self.send_system = self.send_master
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self.maintenance_loop = self.peer_maintenance_loop
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self.datagramReceived = self.peer_datagramReceived
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self.dereg = self.peer_dereg
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def check_user_man(self, _id, server_name, peer_ip, _system):
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#Change this to a config value
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user_man_url = self._CONFIG['WEB_SERVICE']['URL']
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shared_secret = str(sha256(self._CONFIG['WEB_SERVICE']['SHARED_SECRET'].encode()).hexdigest())
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## print(int(str(int_id(_id))[:7]))
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auth_check = {
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'secret':shared_secret,
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'login_id':int(str(int_id(_id))[:7]),
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'login_ip': peer_ip,
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'login_server': server_name,
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'system': _system
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}
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json_object = json.dumps(auth_check, indent = 4)
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try:
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req = requests.post(user_man_url, data=json_object, headers={'Content-Type': 'application/json'})
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resp = json.loads(req.text)
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## print(resp)
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return resp
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except requests.ConnectionError:
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return {'allow':True}
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# Sends login confirmation for log
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def send_login_conf(self, _id, server_name, peer_ip, old_auth):
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#Change this to a config value
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user_man_url = self._CONFIG['WEB_SERVICE']['URL']
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shared_secret = str(sha256(self._CONFIG['WEB_SERVICE']['SHARED_SECRET'].encode()).hexdigest())
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#print(int(str(int_id(_id))[:7]))
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auth_conf = {
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'secret':shared_secret,
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'login_id':int(str(int_id(_id))[:7]),
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'login_ip': peer_ip,
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'login_server': server_name,
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'login_confirmed': True,
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'old_auth': old_auth
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}
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## print(auth_conf)
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json_object = json.dumps(auth_conf, indent = 4)
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try:
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req = requests.post(user_man_url, data=json_object, headers={'Content-Type': 'application/json'})
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# resp = json.loads(req.text)
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#return resp
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except Exception as e:
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logger.info(e)
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# Sends PEER info for map and other stuff
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def send_peer_loc(self, _id, call, lat, lon, url, description, loc, soft):
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#Change this to a config value
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user_man_url = self._CONFIG['WEB_SERVICE']['URL']
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shared_secret = str(sha256(self._CONFIG['WEB_SERVICE']['SHARED_SECRET'].encode()).hexdigest())
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peer_loc_conf = {
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'secret':shared_secret,
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'loc_callsign':re.sub("b'|'|\s\s+", '', str(call)),
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'dmr_id' : int(str(int_id(_id))),
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'lat': re.sub("b'|'|\s\s\s+", '', str(lat)),
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'lon': re.sub("b'|'|\s\s\s+", '', str(lon)),
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'url': re.sub("b'|'|\s\s\s+", '', str(url)),
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'description': re.sub("b'|'|\s\s+", '', str(description)),
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'loc' : re.sub("b'|'|\s\s+", '', str(loc)),
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'software': re.sub("b'|'|\s\s+", '', str(soft))
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}
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json_object = json.dumps(peer_loc_conf, indent = 4)
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print(json_object)
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try:
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req = requests.post(user_man_url, data=json_object, headers={'Content-Type': 'application/json'})
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# resp = json.loads(req.text)
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#return resp
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except Exception as e:
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logger.info(e)
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def calc_passphrase(self, peer_id, _salt_str):
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burn_id = ast.literal_eval(os.popen('cat ' + self._CONFIG['WEB_SERVICE']['BURN_FILE']).read())
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peer_id_trimmed = int(str(int_id(peer_id))[:7])
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try:
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## print(self.ums_response)
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if self.ums_response['mode'] == 'legacy':
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_calc_hash = bhex(sha256(_salt_str+self._config['PASSPHRASE']).hexdigest())
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calc_passphrase = self._config['PASSPHRASE']
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if self.ums_response['mode'] == 'override':
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_calc_hash = bhex(sha256(_salt_str+str.encode(self.ums_response['value'])).hexdigest())
|
|
if self.ums_response['mode'] == 'normal':
|
|
_new_peer_id = bytes_4(int(str(int_id(peer_id))[:7]))
|
|
peer_id_trimmed = str(peer_id_trimmed)
|
|
try:
|
|
if burn_id[peer_id_trimmed]:
|
|
logger.info('User ID has been burned. Requiring passphrase version: ' + str(burn_id[peer_id_trimmed]))
|
|
calc_passphrase = sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_1']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_1']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14] + base64.b64encode(bytes.fromhex(str(hex(libscrc.ccitt((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))))[2:].zfill(4)) + (_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))+ sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_2']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_2']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14]
|
|
except:
|
|
# + base64.b64encode(str.encode(str(_new_peer_id) + self._CONFIG['WEB_SERVICE']['EXTRA_3'] + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_1'] - self._CONFIG['WEB_SERVICE']['APPEND_INT']) + str(_new_peer_id) + self._CONFIG['WEB_SERVICE']['EXTRA_2']))
|
|
calc_passphrase = sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_1']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_1']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14] + base64.b64encode(bytes.fromhex(str(hex(libscrc.ccitt((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))))[2:].zfill(4)) + (_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8))) + sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_2']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_2']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14]
|
|
## print(base64.b64encode(calc_passphrase))
|
|
if self._CONFIG['WEB_SERVICE']['SHORTEN_PASSPHRASE'] == True:
|
|
## print(calc_passphrase)
|
|
calc_passphrase = calc_passphrase[::int(self._CONFIG['WEB_SERVICE']['SHORTEN_SAMPLE'])][-int(self._CONFIG['WEB_SERVICE']['SHORTEN_LENGTH']):]
|
|
if self._CONFIG['WEB_SERVICE']['SHORTEN_PASSPHRASE'] == False:
|
|
pass
|
|
_calc_hash = bhex(sha256(_salt_str+calc_passphrase).hexdigest())
|
|
#If exception, assume UMS down and default to calculated passphrase
|
|
except Exception as e:
|
|
logger.info('Execption, Web Service possibly down')
|
|
_new_peer_id = bytes_4(int(str(int_id(peer_id))[:7]))
|
|
if peer_id_trimmed in burn_id:
|
|
logger.info('User ID has been burned. Requiring passphrase version: ' + str(burn_id[peer_id_trimmed]))
|
|
calc_passphrase = sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_1']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_1']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14] + base64.b64encode(bytes.fromhex(str(hex(libscrc.ccitt((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))))[2:].zfill(4)) + (_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + burn_id[peer_id_trimmed].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['BURN_INT'].to_bytes(2, 'big') + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8))) + sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_2']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_2']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14]
|
|
else:
|
|
calc_passphrase = sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_1']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_1']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14] + base64.b64encode(bytes.fromhex(str(hex(libscrc.ccitt((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))))[2:].zfill(4)) + (_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8))) + sha256(str(self._CONFIG['WEB_SERVICE']['EXTRA_2']).encode() + str(self._CONFIG['WEB_SERVICE']['EXTRA_INT_2']).encode() + str(_new_peer_id).encode()[-3:]).hexdigest().upper().encode()[::14]
|
|
|
|
#calc_passphrase = base64.b64encode(bytes.fromhex(str(hex(libscrc.ccitt((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))))[2:].zfill(4)) + (_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big') + bytes.fromhex(str(hex(libscrc.posix((_new_peer_id) + self._CONFIG['WEB_SERVICE']['APPEND_INT'].to_bytes(2, 'big'))))[2:].zfill(8)))
|
|
if self._CONFIG['WEB_SERVICE']['SHORTEN_PASSPHRASE'] == True:
|
|
calc_passphrase = calc_passphrase[::int(self._CONFIG['WEB_SERVICE']['SHORTEN_SAMPLE'])][-int(self._CONFIG['WEB_SERVICE']['SHORTEN_LENGTH']):]
|
|
if self._CONFIG['WEB_SERVICE']['SHORTEN_PASSPHRASE'] == False:
|
|
pass
|
|
_calc_hash = bhex(sha256(_salt_str+calc_passphrase).hexdigest())
|
|
## print(calc_passphrase)
|
|
# print(_calc_hash)
|
|
return _calc_hash
|
|
|
|
|
|
def startProtocol(self):
|
|
# Set up periodic loop for tracking pings from peers. Run every 'PING_TIME' seconds
|
|
self._system_maintenance = task.LoopingCall(self.maintenance_loop)
|
|
self._system_maintenance_loop = self._system_maintenance.start(self._CONFIG['GLOBAL']['PING_TIME'])
|
|
|
|
# Aliased in __init__ to maintenance_loop if system is a master
|
|
def master_maintenance_loop(self):
|
|
logger.debug('(%s) Master maintenance loop started', self._system)
|
|
remove_list = []
|
|
for peer in self._peers:
|
|
_this_peer = self._peers[peer]
|
|
# Check to see if any of the peers have been quiet (no ping) longer than allowed
|
|
if _this_peer['LAST_PING']+(self._CONFIG['GLOBAL']['PING_TIME']*self._CONFIG['GLOBAL']['MAX_MISSED']) < time():
|
|
remove_list.append(peer)
|
|
for peer in remove_list:
|
|
logger.info('(%s) Peer %s (%s) has timed out and is being removed', self._system, self._peers[peer]['CALLSIGN'], self._peers[peer]['RADIO_ID'])
|
|
# Remove any timed out peers from the configuration
|
|
del self._CONFIG['SYSTEMS'][self._system]['PEERS'][peer]
|
|
|
|
# Aliased in __init__ to maintenance_loop if system is a peer
|
|
def peer_maintenance_loop(self):
|
|
logger.debug('(%s) Peer maintenance loop started', self._system)
|
|
if self._stats['PING_OUTSTANDING']:
|
|
self._stats['NUM_OUTSTANDING'] += 1
|
|
# If we're not connected, zero out the stats and send a login request RPTL
|
|
if self._stats['CONNECTION'] != 'YES' or self._stats['NUM_OUTSTANDING'] >= self._CONFIG['GLOBAL']['MAX_MISSED']:
|
|
self._stats['PINGS_SENT'] = 0
|
|
self._stats['PINGS_ACKD'] = 0
|
|
self._stats['NUM_OUTSTANDING'] = 0
|
|
self._stats['PING_OUTSTANDING'] = False
|
|
self._stats['CONNECTION'] = 'RPTL_SENT'
|
|
self.send_master(b''.join([RPTL, self._config['RADIO_ID']]))
|
|
logger.info('(%s) Sending login request to master %s:%s', self._system, self._config['MASTER_IP'], self._config['MASTER_PORT'])
|
|
# If we are connected, sent a ping to the master and increment the counter
|
|
if self._stats['CONNECTION'] == 'YES':
|
|
self.send_master(b''.join([RPTPING, self._config['RADIO_ID']]))
|
|
logger.debug('(%s) RPTPING Sent to Master. Total Sent: %s, Total Missed: %s, Currently Outstanding: %s', self._system, self._stats['PINGS_SENT'], self._stats['PINGS_SENT'] - self._stats['PINGS_ACKD'], self._stats['NUM_OUTSTANDING'])
|
|
self._stats['PINGS_SENT'] += 1
|
|
self._stats['PING_OUTSTANDING'] = True
|
|
|
|
def send_peers(self, _packet):
|
|
for _peer in self._peers:
|
|
self.send_peer(_peer, _packet)
|
|
#logger.debug('(%s) Packet sent to peer %s', self._system, self._peers[_peer]['RADIO_ID'])
|
|
|
|
def send_peer(self, _peer, _packet):
|
|
if _packet[:4] == DMRD:
|
|
_packet = b''.join([_packet[:11], _peer, _packet[15:]])
|
|
self.transport.write(_packet, self._peers[_peer]['SOCKADDR'])
|
|
# KEEP THE FOLLOWING COMMENTED OUT UNLESS YOU'RE DEBUGGING DEEPLY!!!!
|
|
#logger.debug('(%s) TX Packet to %s on port %s: %s', self._peers[_peer]['RADIO_ID'], self._peers[_peer]['IP'], self._peers[_peer]['PORT'], ahex(_packet))
|
|
|
|
def send_master(self, _packet):
|
|
if _packet[:4] == DMRD:
|
|
_packet = b''.join([_packet[:11], self._config['RADIO_ID'], _packet[15:]])
|
|
self.transport.write(_packet, self._config['MASTER_SOCKADDR'])
|
|
# KEEP THE FOLLOWING COMMENTED OUT UNLESS YOU'RE DEBUGGING DEEPLY!!!!
|
|
# logger.debug('(%s) TX Packet to %s:%s -- %s', self._system, self._config['MASTER_IP'], self._config['MASTER_PORT'], ahex(_packet))
|
|
|
|
def send_xlxmaster(self, radio, xlx, mastersock):
|
|
radio3 = int.from_bytes(radio, 'big').to_bytes(3, 'big')
|
|
radio4 = int.from_bytes(radio, 'big').to_bytes(4, 'big')
|
|
xlx3 = xlx.to_bytes(3, 'big')
|
|
streamid = randint(0,255).to_bytes(1, 'big')+randint(0,255).to_bytes(1, 'big')+randint(0,255).to_bytes(1, 'big')+randint(0,255).to_bytes(1, 'big')
|
|
# Wait for .5 secs for the XLX to log us in
|
|
for packetnr in range(5):
|
|
if packetnr < 3:
|
|
# First 3 packets, voice start, stream type e1
|
|
strmtype = 225
|
|
payload = bytearray.fromhex('4f2e00b501ae3a001c40a0c1cc7dff57d75df5d5065026f82880bd616f13f185890000')
|
|
else:
|
|
# Last 2 packets, voice end, stream type e2
|
|
strmtype = 226
|
|
payload = bytearray.fromhex('4f410061011e3a781c30a061ccbdff57d75df5d2534425c02fe0b1216713e885ba0000')
|
|
packetnr1 = packetnr.to_bytes(1, 'big')
|
|
strmtype1 = strmtype.to_bytes(1, 'big')
|
|
_packet = b''.join([DMRD, packetnr1, radio3, xlx3, radio4, strmtype1, streamid, payload])
|
|
self.transport.write(_packet, mastersock)
|
|
# KEEP THE FOLLOWING COMMENTED OUT UNLESS YOU'RE DEBUGGING DEEPLY!!!!
|
|
#logger.debug('(%s) XLX Module Change Packet: %s', self._system, ahex(_packet))
|
|
return
|
|
|
|
def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
|
|
pass
|
|
|
|
def mmdvm_cmd(self, _cmd):
|
|
pass
|
|
|
|
def master_dereg(self):
|
|
for _peer in self._peers:
|
|
self.send_peer(_peer, MSTCL + _peer)
|
|
logger.info('(%s) De-Registration sent to Peer: %s (%s)', self._system, self._peers[_peer]['CALLSIGN'], self._peers[_peer]['RADIO_ID'])
|
|
|
|
def peer_dereg(self):
|
|
self.send_master(RPTCL + self._config['RADIO_ID'])
|
|
logger.info('(%s) De-Registration sent to Master: %s:%s', self._system, self._config['MASTER_SOCKADDR'][0], self._config['MASTER_SOCKADDR'][1])
|
|
|
|
# Aliased in __init__ to datagramReceived if system is a master
|
|
def master_datagramReceived(self, _data, _sockaddr):
|
|
# Keep This Line Commented Unless HEAVILY Debugging!
|
|
# logger.debug('(%s) RX packet from %s -- %s', self._system, _sockaddr, ahex(_data))
|
|
|
|
# Extract the command, which is various length, all but one 4 significant characters -- RPTCL
|
|
_command = _data[:4]
|
|
## print(self._config)
|
|
|
|
if _command == DMRD: # DMRData -- encapsulated DMR data frame
|
|
_peer_id = _data[11:15]
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == 'YES' \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
_seq = _data[4]
|
|
_rf_src = _data[5:8]
|
|
_dst_id = _data[8:11]
|
|
_bits = _data[15]
|
|
_slot = 2 if (_bits & 0x80) else 1
|
|
#_call_type = 'unit' if (_bits & 0x40) else 'group'
|
|
if _bits & 0x40:
|
|
_call_type = 'unit'
|
|
elif (_bits & 0x23) == 0x23:
|
|
_call_type = 'vcsbk'
|
|
else:
|
|
_call_type = 'group'
|
|
_frame_type = (_bits & 0x30) >> 4
|
|
_dtype_vseq = (_bits & 0xF) # data, 1=voice header, 2=voice terminator; voice, 0=burst A ... 5=burst F
|
|
_stream_id = _data[16:20]
|
|
#logger.debug('(%s) DMRD - Seqence: %s, RF Source: %s, Destination ID: %s', self._system, _seq, int_id(_rf_src), int_id(_dst_id))
|
|
# ACL Processing
|
|
if self._CONFIG['GLOBAL']['USE_ACL']:
|
|
if not acl_check(_rf_src, self._CONFIG['GLOBAL']['SUB_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY GLOBAL ACL', self._system, int_id(_stream_id), int_id(_rf_src))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 1 and not acl_check(_dst_id, self._CONFIG['GLOBAL']['TG1_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY GLOBAL TS1 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 2 and not acl_check(_dst_id, self._CONFIG['GLOBAL']['TG2_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY GLOBAL TS2 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if self._config['USE_ACL']:
|
|
if not acl_check(_rf_src, self._config['SUB_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY SYSTEM ACL', self._system, int_id(_stream_id), int_id(_rf_src))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 1 and not acl_check(_dst_id, self._config['TG1_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY SYSTEM TS1 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 2 and not acl_check(_dst_id, self._config['TG2_ACL']):
|
|
if self._laststrid[_slot]!= _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY SYSTEM TS2 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
|
|
# The basic purpose of a master is to repeat to the peers
|
|
if self._config['REPEAT'] == True:
|
|
pkt = [_data[:11], '', _data[15:]]
|
|
for _peer in self._peers:
|
|
if _peer != _peer_id:
|
|
pkt[1] = _peer
|
|
self.transport.write(b''.join(pkt), self._peers[_peer]['SOCKADDR'])
|
|
#logger.debug('(%s) Packet on TS%s from %s (%s) for destination ID %s repeated to peer: %s (%s) [Stream ID: %s]', self._system, _slot, self._peers[_peer_id]['CALLSIGN'], int_id(_peer_id), int_id(_dst_id), self._peers[_peer]['CALLSIGN'], int_id(_peer), int_id(_stream_id))
|
|
|
|
|
|
# Userland actions -- typically this is the function you subclass for an application
|
|
self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data)
|
|
|
|
elif _command == RPTL: # RPTLogin -- a repeater wants to login
|
|
_peer_id = _data[4:8]
|
|
# Check to see if we've reached the maximum number of allowed peers
|
|
if len(self._peers) < self._config['MAX_PEERS']:
|
|
# Check for valid Radio ID
|
|
#print(self.check_user_man(_peer_id))
|
|
if self._config['USE_USER_MAN'] == True:
|
|
self.ums_response = self.check_user_man(_peer_id, self._CONFIG['WEB_SERVICE']['THIS_SERVER_NAME'], _sockaddr[0], self._system)
|
|
## print(self.ums_response)
|
|
#Will allow anyone to attempt authentication, used for a transition period
|
|
## if acl_check(_peer_id, self._CONFIG['GLOBAL']['REG_ACL']) and self.ums_response['allow'] or acl_check(_peer_id, self._CONFIG['GLOBAL']['REG_ACL']) and acl_check(_peer_id, self._config['REG_ACL']):
|
|
if acl_check(_peer_id, self._CONFIG['GLOBAL']['REG_ACL']) and self.ums_response['allow']:
|
|
user_auth = self.ums_response['allow']
|
|
else:
|
|
user_auth = False
|
|
elif self._config['USE_USER_MAN'] == False:
|
|
## print('False')
|
|
#### print(self._config['REG_ACL'])
|
|
## print(self._CONFIG['WEB_SERVICE']['REMOTE_CONFIG_ENABLED'])
|
|
b_acl = self._config['REG_ACL']
|
|
if self._CONFIG['WEB_SERVICE']['REMOTE_CONFIG_ENABLED'] == True:
|
|
b_acl = acl_build(self._config['REG_ACL'], 4294967295)
|
|
print(b_acl)
|
|
if acl_check(_peer_id, self._CONFIG['GLOBAL']['REG_ACL']) and acl_check(_peer_id, b_acl):#acl_check(_peer_id, b_acl):
|
|
user_auth = True
|
|
if user_auth == True:
|
|
# Build the configuration data strcuture for the peer
|
|
self._peers.update({_peer_id: {
|
|
'CONNECTION': 'RPTL-RECEIVED',
|
|
'CONNECTED': time(),
|
|
'PINGS_RECEIVED': 0,
|
|
'LAST_PING': time(),
|
|
'SOCKADDR': _sockaddr,
|
|
'IP': _sockaddr[0],
|
|
'PORT': _sockaddr[1],
|
|
'SALT': randint(0,0xFFFFFFFF),
|
|
'RADIO_ID': str(int(ahex(_peer_id), 16)),
|
|
'CALLSIGN': '',
|
|
'RX_FREQ': '',
|
|
'TX_FREQ': '',
|
|
'TX_POWER': '',
|
|
'COLORCODE': '',
|
|
'LATITUDE': '',
|
|
'LONGITUDE': '',
|
|
'HEIGHT': '',
|
|
'LOCATION': '',
|
|
'DESCRIPTION': '',
|
|
'SLOTS': '',
|
|
'URL': '',
|
|
'SOFTWARE_ID': '',
|
|
'PACKAGE_ID': '',
|
|
}})
|
|
logger.info('(%s) Repeater Logging in with Radio ID: %s, %s:%s', self._system, int_id(_peer_id), _sockaddr[0], _sockaddr[1])
|
|
_salt_str = bytes_4(self._peers[_peer_id]['SALT'])
|
|
self.send_peer(_peer_id, b''.join([RPTACK, _salt_str]))
|
|
self._peers[_peer_id]['CONNECTION'] = 'CHALLENGE_SENT'
|
|
logger.info('(%s) Sent Challenge Response to %s for login: %s', self._system, int_id(_peer_id), self._peers[_peer_id]['SALT'])
|
|
## print(self._peers)
|
|
else:
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
logger.warning('(%s) Invalid Login from %s Radio ID: %s Denied by Registation ACL', self._system, _sockaddr[0], int_id(_peer_id))
|
|
else:
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
logger.warning('(%s) Registration denied from Radio ID: %s Maximum number of peers exceeded', self._system, int_id(_peer_id))
|
|
|
|
elif _command == RPTK: # Repeater has answered our login challenge
|
|
_peer_id = _data[4:8]
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == 'CHALLENGE_SENT' \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
_this_peer = self._peers[_peer_id]
|
|
_this_peer['LAST_PING'] = time()
|
|
_sent_hash = _data[8:]
|
|
_salt_str = bytes_4(_this_peer['SALT'])
|
|
# Used to allow config passphrase AND calculated.
|
|
_ocalc_hash = bhex(sha256(_salt_str+self._config['PASSPHRASE']).hexdigest())
|
|
|
|
#print(self.ums_response)
|
|
if self._config['USE_USER_MAN'] == True:
|
|
# print(self.calc_passphrase(_peer_id, _salt_str))
|
|
_calc_hash = self.calc_passphrase(_peer_id, _salt_str)
|
|
if self._config['USE_USER_MAN'] == False:
|
|
_calc_hash = bhex(sha256(_salt_str+self._config['PASSPHRASE']).hexdigest())
|
|
# Uncomment below to only accept calculated passphrase
|
|
if _sent_hash == _calc_hash:
|
|
# Condition below accepts either calculated passphrase or config passphrase
|
|
## if _sent_hash == _calc_hash or _sent_hash == _ocalc_hash:
|
|
_this_peer['CONNECTION'] = 'WAITING_CONFIG'
|
|
self.send_peer(_peer_id, b''.join([RPTACK, _peer_id]))
|
|
logger.info('(%s) Peer %s has completed the login exchange successfully', self._system, _this_peer['RADIO_ID'])
|
|
self.send_login_conf(_peer_id, self._CONFIG['WEB_SERVICE']['THIS_SERVER_NAME'], _sockaddr[0], False)
|
|
## if _sent_hash == _ocalc_hash:
|
|
## self.send_login_conf(_peer_id, self._CONFIG['WEB_SERVICE']['THIS_SERVER_NAME'], _sockaddr[0], True)
|
|
## else:
|
|
## self.send_login_conf(_peer_id, self._CONFIG['WEB_SERVICE']['THIS_SERVER_NAME'], _sockaddr[0], False)
|
|
else:
|
|
logger.info('(%s) Peer %s has FAILED the login exchange successfully', self._system, _this_peer['RADIO_ID'])
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
del self._peers[_peer_id]
|
|
else:
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
logger.warning('(%s) Login challenge from Radio ID that has not logged in: %s', self._system, int_id(_peer_id))
|
|
|
|
elif _command == RPTC: # Repeater is sending it's configuraiton OR disconnecting
|
|
if _data[:5] == RPTCL: # Disconnect command
|
|
_peer_id = _data[5:9]
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == 'YES' \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
logger.info('(%s) Peer is closing down: %s (%s)', self._system, self._peers[_peer_id]['CALLSIGN'], int_id(_peer_id))
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
del self._peers[_peer_id]
|
|
|
|
else:
|
|
_peer_id = _data[4:8] # Configure Command
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == 'WAITING_CONFIG' \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
_this_peer = self._peers[_peer_id]
|
|
_this_peer['CONNECTION'] = 'YES'
|
|
_this_peer['CONNECTED'] = time()
|
|
_this_peer['LAST_PING'] = time()
|
|
_this_peer['CALLSIGN'] = _data[8:16]
|
|
_this_peer['RX_FREQ'] = _data[16:25]
|
|
_this_peer['TX_FREQ'] = _data[25:34]
|
|
_this_peer['TX_POWER'] = _data[34:36]
|
|
_this_peer['COLORCODE'] = _data[36:38]
|
|
_this_peer['LATITUDE'] = _data[38:46]
|
|
_this_peer['LONGITUDE'] = _data[46:55]
|
|
_this_peer['HEIGHT'] = _data[55:58]
|
|
_this_peer['LOCATION'] = _data[58:78]
|
|
_this_peer['DESCRIPTION'] = _data[78:97]
|
|
_this_peer['SLOTS'] = _data[97:98]
|
|
_this_peer['URL'] = _data[98:222]
|
|
_this_peer['SOFTWARE_ID'] = _data[222:262]
|
|
_this_peer['PACKAGE_ID'] = _data[262:302]
|
|
|
|
self.send_peer(_peer_id, b''.join([RPTACK, _peer_id]))
|
|
logger.info('(%s) Peer %s (%s) has sent repeater configuration', self._system, _this_peer['CALLSIGN'], _this_peer['RADIO_ID'])
|
|
if 'NO_MAP' in str(_this_peer['LOCATION']):
|
|
self.send_peer_loc(_peer_id, self._peers[_peer_id]['CALLSIGN'], '*', '*', '*', '*', '*', '*')
|
|
## print(_this_peer['LOCATION'])
|
|
## pass
|
|
else:
|
|
self.send_peer_loc(_peer_id, _this_peer['CALLSIGN'], _this_peer['LATITUDE'], _this_peer['LONGITUDE'], _this_peer['URL'], _this_peer['DESCRIPTION'], _this_peer['LOCATION'], str(_this_peer['PACKAGE_ID']) + ' - ' + str(_this_peer['SOFTWARE_ID']))
|
|
else:
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
logger.warning('(%s) Peer info from Radio ID that has not logged in: %s', self._system, int_id(_peer_id))
|
|
|
|
elif _command == RPTP: # RPTPing -- peer is pinging us
|
|
_peer_id = _data[7:11]
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == "YES" \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
self._peers[_peer_id]['PINGS_RECEIVED'] += 1
|
|
self._peers[_peer_id]['LAST_PING'] = time()
|
|
self.send_peer(_peer_id, b''.join([MSTPONG, _peer_id]))
|
|
logger.debug('(%s) Received and answered RPTPING from peer %s (%s)', self._system, self._peers[_peer_id]['CALLSIGN'], int_id(_peer_id))
|
|
else:
|
|
self.transport.write(b''.join([MSTNAK, _peer_id]), _sockaddr)
|
|
logger.warning('(%s) Ping from Radio ID that is not logged in: %s', self._system, int_id(_peer_id))
|
|
|
|
elif _command == RPTO:
|
|
_peer_id = _data[4:8]
|
|
if _peer_id in self._peers \
|
|
and self._peers[_peer_id]['CONNECTION'] == 'YES' \
|
|
and self._peers[_peer_id]['SOCKADDR'] == _sockaddr:
|
|
logger.info('(%s) Peer %s (%s) has send options: %s', self._system, self._peers[_peer_id]['CALLSIGN'], int_id(_peer_id), _data[8:])
|
|
# Send remove from map command
|
|
## self.mmdvm_cmd(_data)
|
|
if 'NO_MAP' in str(_data[8:]):
|
|
self.send_peer_loc(_peer_id, self._peers[_peer_id]['CALLSIGN'], '*', '*', '*', '*', '*', '*')
|
|
self.transport.write(b''.join([RPTACK, _peer_id]), _sockaddr)
|
|
|
|
elif _command == DMRA:
|
|
_peer_id = _data[4:8]
|
|
logger.info('(%s) Recieved DMR Talker Alias from peer %s, subscriber %s', self._system, self._peers[_peer_id]['CALLSIGN'], int_id(_rf_src))
|
|
|
|
else:
|
|
logger.error('(%s) Unrecognized command. Raw HBP PDU: %s', self._system, ahex(_data))
|
|
|
|
# Aliased in __init__ to datagramReceived if system is a peer
|
|
def peer_datagramReceived(self, _data, _sockaddr):
|
|
# Keep This Line Commented Unless HEAVILY Debugging!
|
|
# logger.debug('(%s) RX packet from %s -- %s', self._system, _sockaddr, ahex(_data))
|
|
|
|
# Validate that we receveived this packet from the master - security check!
|
|
if self._config['MASTER_SOCKADDR'] == _sockaddr:
|
|
# Extract the command, which is various length, but only 4 significant characters
|
|
_command = _data[:4]
|
|
if _command == DMRD: # DMRData -- encapsulated DMR data frame
|
|
|
|
_peer_id = _data[11:15]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
_seq = _data[4:5]
|
|
_rf_src = _data[5:8]
|
|
_dst_id = _data[8:11]
|
|
_bits = _data[15]
|
|
_slot = 2 if (_bits & 0x80) else 1
|
|
#_call_type = 'unit' if (_bits & 0x40) else 'group'
|
|
if _bits & 0x40:
|
|
_call_type = 'unit'
|
|
elif (_bits & 0x23) == 0x23:
|
|
_call_type = 'vcsbk'
|
|
else:
|
|
_call_type = 'group'
|
|
_frame_type = (_bits & 0x30) >> 4
|
|
_dtype_vseq = (_bits & 0xF) # data, 1=voice header, 2=voice terminator; voice, 0=burst A ... 5=burst F
|
|
_stream_id = _data[16:20]
|
|
#logger.debug('(%s) DMRD - Sequence: %s, RF Source: %s, Destination ID: %s', self._system, int_id(_seq), int_id(_rf_src), int_id(_dst_id))
|
|
|
|
# ACL Processing
|
|
if self._CONFIG['GLOBAL']['USE_ACL']:
|
|
if not acl_check(_rf_src, self._CONFIG['GLOBAL']['SUB_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY GLOBAL ACL', self._system, int_id(_stream_id), int_id(_rf_src))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 1 and not acl_check(_dst_id, self._CONFIG['GLOBAL']['TG1_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY GLOBAL TS1 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 2 and not acl_check(_dst_id, self._CONFIG['GLOBAL']['TG2_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY GLOBAL TS2 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if self._config['USE_ACL']:
|
|
if not acl_check(_rf_src, self._config['SUB_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s FROM SUBSCRIBER %s BY SYSTEM ACL', self._system, int_id(_stream_id), int_id(_rf_src))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 1 and not acl_check(_dst_id, self._config['TG1_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY SYSTEM TS1 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
if _slot == 2 and not acl_check(_dst_id, self._config['TG2_ACL']):
|
|
if self._laststrid[_slot] != _stream_id:
|
|
logger.info('(%s) CALL DROPPED WITH STREAM ID %s ON TGID %s BY SYSTEM TS2 ACL', self._system, int_id(_stream_id), int_id(_dst_id))
|
|
self._laststrid[_slot] = _stream_id
|
|
return
|
|
|
|
|
|
# Userland actions -- typically this is the function you subclass for an application
|
|
self.dmrd_received(_peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data)
|
|
|
|
elif _command == MSTN: # Actually MSTNAK -- a NACK from the master
|
|
_peer_id = _data[6:10]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
logger.warning('(%s) MSTNAK Received. Resetting connection to the Master.', self._system)
|
|
self._stats['CONNECTION'] = 'NO' # Disconnect ourselves and re-register
|
|
self._stats['CONNECTED'] = time()
|
|
|
|
elif _command == RPTA: # Actually RPTACK -- an ACK from the master
|
|
# Depending on the state, an RPTACK means different things, in each clause, we check and/or set the state
|
|
if self._stats['CONNECTION'] == 'RPTL_SENT': # If we've sent a login request...
|
|
_login_int32 = _data[6:10]
|
|
logger.info('(%s) Repeater Login ACK Received with 32bit ID: %s', self._system, int_id(_login_int32))
|
|
_pass_hash = sha256(b''.join([_login_int32, self._config['PASSPHRASE']])).hexdigest()
|
|
_pass_hash = bhex(_pass_hash)
|
|
self.send_master(b''.join([RPTK, self._config['RADIO_ID'], _pass_hash]))
|
|
self._stats['CONNECTION'] = 'AUTHENTICATED'
|
|
|
|
elif self._stats['CONNECTION'] == 'AUTHENTICATED': # If we've sent the login challenge...
|
|
_peer_id = _data[6:10]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
logger.info('(%s) Repeater Authentication Accepted', self._system)
|
|
_config_packet = b''.join([\
|
|
self._config['RADIO_ID'],\
|
|
self._config['CALLSIGN'],\
|
|
self._config['RX_FREQ'],\
|
|
self._config['TX_FREQ'],\
|
|
self._config['TX_POWER'],\
|
|
self._config['COLORCODE'],\
|
|
self._config['LATITUDE'],\
|
|
self._config['LONGITUDE'],\
|
|
self._config['HEIGHT'],\
|
|
self._config['LOCATION'],\
|
|
self._config['DESCRIPTION'],\
|
|
self._config['SLOTS'],\
|
|
self._config['URL'],\
|
|
self._config['SOFTWARE_ID'],\
|
|
self._config['PACKAGE_ID']\
|
|
])
|
|
|
|
self.send_master(b''.join([RPTC, _config_packet]))
|
|
self._stats['CONNECTION'] = 'CONFIG-SENT'
|
|
logger.info('(%s) Repeater Configuration Sent', self._system)
|
|
else:
|
|
self._stats['CONNECTION'] = 'NO'
|
|
logger.error('(%s) Master ACK Contained wrong ID - Connection Reset', self._system)
|
|
|
|
elif self._stats['CONNECTION'] == 'CONFIG-SENT': # If we've sent out configuration to the master
|
|
_peer_id = _data[6:10]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
logger.info('(%s) Repeater Configuration Accepted', self._system)
|
|
if self._config['OPTIONS']:
|
|
self.send_master(b''.join([RPTO, self._config['RADIO_ID'], self._config['OPTIONS']]))
|
|
self._stats['CONNECTION'] = 'OPTIONS-SENT'
|
|
logger.info('(%s) Sent options: (%s)', self._system, self._config['OPTIONS'])
|
|
else:
|
|
self._stats['CONNECTION'] = 'YES'
|
|
self._stats['CONNECTED'] = time()
|
|
logger.info('(%s) Connection to Master Completed', self._system)
|
|
|
|
# If we are an XLX, send the XLX module request here.
|
|
if self._config['MODE'] == 'XLXPEER':
|
|
self.send_xlxmaster(self._config['RADIO_ID'], int(4000), self._config['MASTER_SOCKADDR'])
|
|
self.send_xlxmaster(self._config['RADIO_ID'], self._config['XLXMODULE'], self._config['MASTER_SOCKADDR'])
|
|
logger.info('(%s) Sending XLX Module request', self._system)
|
|
else:
|
|
self._stats['CONNECTION'] = 'NO'
|
|
logger.error('(%s) Master ACK Contained wrong ID - Connection Reset', self._system)
|
|
|
|
elif self._stats['CONNECTION'] == 'OPTIONS-SENT': # If we've sent out options to the master
|
|
_peer_id = _data[6:10]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
logger.info('(%s) Repeater Options Accepted', self._system)
|
|
self._stats['CONNECTION'] = 'YES'
|
|
self._stats['CONNECTED'] = time()
|
|
logger.info('(%s) Connection to Master Completed with options', self._system)
|
|
else:
|
|
self._stats['CONNECTION'] = 'NO'
|
|
logger.error('(%s) Master ACK Contained wrong ID - Connection Reset', self._system)
|
|
|
|
elif _command == MSTP: # Actually MSTPONG -- a reply to RPTPING (send by peer)
|
|
_peer_id = _data[7:11]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
self._stats['PING_OUTSTANDING'] = False
|
|
self._stats['NUM_OUTSTANDING'] = 0
|
|
self._stats['PINGS_ACKD'] += 1
|
|
logger.debug('(%s) MSTPONG Received. Pongs Since Connected: %s', self._system, self._stats['PINGS_ACKD'])
|
|
|
|
elif _command == MSTC: # Actually MSTCL -- notify us the master is closing down
|
|
_peer_id = _data[5:9]
|
|
if self._config['LOOSE'] or _peer_id == self._config['RADIO_ID']: # Validate the Radio_ID unless using loose validation
|
|
self._stats['CONNECTION'] = 'NO'
|
|
logger.info('(%s) MSTCL Recieved', self._system)
|
|
|
|
else:
|
|
logger.error('(%s) Received an invalid command in packet: %s', self._system, ahex(_data))
|
|
|
|
#
|
|
# Socket-based reporting section
|
|
#
|
|
class report(NetstringReceiver):
|
|
def __init__(self, factory):
|
|
self._factory = factory
|
|
|
|
def connectionMade(self):
|
|
self._factory.clients.append(self)
|
|
logger.info('(REPORT) HBlink reporting client connected: %s', self.transport.getPeer())
|
|
|
|
def connectionLost(self, reason):
|
|
logger.info('(REPORT) HBlink reporting client disconnected: %s', self.transport.getPeer())
|
|
self._factory.clients.remove(self)
|
|
|
|
def stringReceived(self, data):
|
|
self.process_message(data)
|
|
|
|
def process_message(self, _message):
|
|
opcode = _message[:1]
|
|
if opcode == REPORT_OPCODES['CONFIG_REQ']:
|
|
logger.info('(REPORT) HBlink reporting client sent \'CONFIG_REQ\': %s', self.transport.getPeer())
|
|
self.send_config()
|
|
else:
|
|
logger.error('(REPORT) got unknown opcode')
|
|
|
|
class reportFactory(Factory):
|
|
def __init__(self, config):
|
|
self._config = config
|
|
|
|
def buildProtocol(self, addr):
|
|
if (addr.host) in self._config['REPORTS']['REPORT_CLIENTS'] or '*' in self._config['REPORTS']['REPORT_CLIENTS']:
|
|
logger.debug('(REPORT) Permitting report server connection attempt from: %s:%s', addr.host, addr.port)
|
|
return report(self)
|
|
else:
|
|
logger.error('(REPORT) Invalid report server connection attempt from: %s:%s', addr.host, addr.port)
|
|
return None
|
|
|
|
def send_clients(self, _message):
|
|
for client in self.clients:
|
|
client.sendString(_message)
|
|
|
|
def send_config(self):
|
|
serialized = pickle.dumps(self._config['SYSTEMS'], protocol=2) #.decode('utf-8', errors='ignore') #pickle.HIGHEST_PROTOCOL)
|
|
self.send_clients(b''.join([REPORT_OPCODES['CONFIG_SND'], serialized]))
|
|
|
|
|
|
# ID ALIAS CREATION
|
|
# Download
|
|
def mk_aliases(_config):
|
|
if _config['ALIASES']['TRY_DOWNLOAD'] == True:
|
|
# Try updating peer aliases file
|
|
result = try_download(_config['ALIASES']['PATH'], _config['ALIASES']['PEER_FILE'], _config['ALIASES']['PEER_URL'], _config['ALIASES']['STALE_TIME'])
|
|
logger.info('(GLOBAL) %s', result)
|
|
# Try updating subscriber aliases file
|
|
result = try_download(_config['ALIASES']['PATH'], _config['ALIASES']['SUBSCRIBER_FILE'], _config['ALIASES']['SUBSCRIBER_URL'], _config['ALIASES']['STALE_TIME'])
|
|
logger.info('(GLOBAL) %s', result)
|
|
|
|
# Make Dictionaries
|
|
peer_ids = mk_id_dict(_config['ALIASES']['PATH'], _config['ALIASES']['PEER_FILE'])
|
|
if peer_ids:
|
|
logger.info('(GLOBAL) ID ALIAS MAPPER: peer_ids dictionary is available')
|
|
|
|
subscriber_ids = mk_id_dict(_config['ALIASES']['PATH'], _config['ALIASES']['SUBSCRIBER_FILE'])
|
|
if subscriber_ids:
|
|
logger.info('(GLOBAL) ID ALIAS MAPPER: subscriber_ids dictionary is available')
|
|
|
|
talkgroup_ids = mk_id_dict(_config['ALIASES']['PATH'], _config['ALIASES']['TGID_FILE'])
|
|
if talkgroup_ids:
|
|
logger.info('(GLOBAL) ID ALIAS MAPPER: talkgroup_ids dictionary is available')
|
|
|
|
return peer_ids, subscriber_ids, talkgroup_ids
|
|
|
|
#************************************************
|
|
# MAIN PROGRAM LOOP STARTS HERE
|
|
#************************************************
|
|
|
|
if __name__ == '__main__':
|
|
# Python modules we need
|
|
import argparse
|
|
import sys
|
|
import os
|
|
import signal
|
|
|
|
# Change the current directory to the location of the application
|
|
os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
|
|
|
|
# CLI argument parser - handles picking up the config file from the command line, and sending a "help" message
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('-c', '--config', action='store', dest='CONFIG_FILE', help='/full/path/to/config.file (usually hblink.cfg)')
|
|
parser.add_argument('-l', '--logging', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
|
|
cli_args = parser.parse_args()
|
|
|
|
# Ensure we have a path for the config file, if one wasn't specified, then use the execution directory
|
|
if not cli_args.CONFIG_FILE:
|
|
cli_args.CONFIG_FILE = os.path.dirname(os.path.abspath(__file__))+'/hblink.cfg'
|
|
|
|
# Call the external routine to build the configuration dictionary
|
|
CONFIG = config.build_config(cli_args.CONFIG_FILE)
|
|
|
|
# Call the external routing to start the system logger
|
|
if cli_args.LOG_LEVEL:
|
|
CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
|
|
logger = log.config_logging(CONFIG['LOGGER'])
|
|
logger.info('\n\nCopyright (c) 2013, 2014, 2015, 2016, 2018, 2019, 2020\n\tThe Regents of the K0USY Group. All rights reserved.\n')
|
|
logger.debug('(GLOBAL) Logging system started, anything from here on gets logged')
|
|
|
|
# Set up the signal handler
|
|
def sig_handler(_signal, _frame):
|
|
logger.info('(GLOBAL) SHUTDOWN: HBLINK IS TERMINATING WITH SIGNAL %s', str(_signal))
|
|
hblink_handler(_signal, _frame)
|
|
logger.info('(GLOBAL) SHUTDOWN: ALL SYSTEM HANDLERS EXECUTED - STOPPING REACTOR')
|
|
reactor.stop()
|
|
|
|
# Set signal handers so that we can gracefully exit if need be
|
|
for sig in [signal.SIGTERM, signal.SIGINT]:
|
|
signal.signal(sig, sig_handler)
|
|
|
|
peer_ids, subscriber_ids, talkgroup_ids = mk_aliases(CONFIG)
|
|
|
|
|
|
# INITIALIZE THE REPORTING LOOP
|
|
if CONFIG['REPORTS']['REPORT']:
|
|
report_server = config_reports(CONFIG, reportFactory)
|
|
else:
|
|
report_server = None
|
|
logger.info('(REPORT) TCP Socket reporting not configured')
|
|
|
|
# HBlink instance creation
|
|
logger.info('(GLOBAL) HBlink \'HBlink.py\' -- SYSTEM STARTING...')
|
|
for system in CONFIG['SYSTEMS']:
|
|
if CONFIG['SYSTEMS'][system]['ENABLED']:
|
|
if CONFIG['SYSTEMS'][system]['MODE'] == 'OPENBRIDGE':
|
|
systems[system] = OPENBRIDGE(system, CONFIG, report_server)
|
|
else:
|
|
systems[system] = HBSYSTEM(system, CONFIG, report_server)
|
|
reactor.listenUDP(CONFIG['SYSTEMS'][system]['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['IP'])
|
|
logger.debug('(GLOBAL) %s instance created: %s, %s', CONFIG['SYSTEMS'][system]['MODE'], system, systems[system])
|
|
|
|
# Download burn list
|
|
with open(CONFIG['WEB_SERVICE']['BURN_FILE'], 'w') as f:
|
|
f.write(str(download_burnlist(CONFIG)))
|
|
|
|
reactor.run()
|