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fne_router.py
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#!/usr/bin/env python
#
# Digital Voice Modem - Fixed Network Equipment
# GPLv2 Open Source. Use is subject to license terms.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# @package DVM / FNE
#
###############################################################################
# Copyright (C) 2016 Cortney T. Buffington, N0MJS <[email protected]>
# Copyright (C) 2017-2021 Bryan Biedenkapp <[email protected]>
# Copyright (C) 2022 Natalie Moore <[email protected]>
#
# 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
import sys, traceback
import pickle
from binascii import b2a_hex as ahex
from bitarray import bitarray
from time import time
from importlib import import_module
from twisted.python import log
from twisted.internet.protocol import Factory, Protocol
from twisted.protocols.basic import NetstringReceiver
from twisted.internet import reactor, task
from fne.fne_core import int_to_bytes, short_to_bytes, bytes_to_int, coreFNE, systems, fne_shutdown_handler, REPORT_OPCODES, reportFactory, config_reports, setup_activity_log
from fne import fne_config, fne_log, fne_const
from dmr_utils import lc, bptc, const
# ---------------------------------------------------------------------------
# Module Routines
# ---------------------------------------------------------------------------
def get_valid(_id, _dict):
if _id in _dict:
return True
else:
return False
return False
def get_valid_ignore(_peer_id, _id, _dict):
if _id in _dict:
if _peer_id in _dict[_id]:
return True
else:
if len(_dict[_id]) > 0:
if _dict[_id][0] == 0:
return True
return False
else:
return False
return False
# Import bridging rules
# Note: A stanza *must* exist for any MASTER or PEER configured in the main
# configuration file and listed as "active". It can be empty,
# but it has to exist.
def make_rules(_fne_routing_rules):
global RULES, rule_file
try:
if _fne_routing_rules not in sys.modules:
rule_file = import_module(_fne_routing_rules)
#logger.info('Routing rules file found and rules imported')
else:
rule_file = reload(rule_file)
#logger.info('Routing rules file found and rules reloaded')
except:
logger.error('Routing rules file not found or invalid')
return RULES
# Convert integer GROUP ID numbers from the config into hex strings
# we need to send in the actual data packets.
for _system in rule_file.RULES:
if _system not in config['Systems']:
logger.error('Routing rules found for system %s, not configured main configuration', _system)
continue
config['Systems'][_system]['ACTIVE_TG_IDS'] = {}
config['Systems'][_system]['DEACTIVE_TG_IDS'] = {}
config['Systems'][_system]['TG_IGNORE_IDS'] = {}
config['Systems'][_system]['TG_ALLOW_AFF'] = []
for _rule in rule_file.RULES[_system]['GROUP_VOICE']:
_rule['SRC_TS'] = _rule['SRC_TS']
_rule['DST_TS'] = _rule['DST_TS']
if rule_file.RULES[_system]['SEND_TGID'] == True:
if _rule['ACTIVE'] == True:
config['Systems'][_system]['ACTIVE_TG_IDS'][_rule['SRC_GROUP']] = (_rule['NAME'], _rule['SRC_TS'])
else:
config['Systems'][_system]['DEACTIVE_TG_IDS'][_rule['SRC_GROUP']] = (_rule['NAME'], _rule['SRC_TS'])
config['Systems'][_system]['TG_IGNORE_IDS'][_rule['SRC_GROUP']] = [int(x) for x in _rule['IGNORED']]
if _rule['AFFILIATED'] == True:
config['Systems'][_system]['TG_ALLOW_AFF'].append(_rule['SRC_GROUP'])
for i, e in enumerate(_rule['ON']):
_rule['ON'][i] = _rule['ON'][i]
for i, e in enumerate(_rule['OFF']):
_rule['OFF'][i] = _rule['OFF'][i]
_rule['TIMEOUT'] = _rule['TIMEOUT'] * 60
_rule['TIMER'] = time() + _rule['TIMEOUT']
# if we're reloading rules lets restore states
if RULES:
for _loaded_rule in RULES[_system]['GROUP_VOICE']:
if _loaded_rule['NAME'] == _rule['NAME']:
_rule['ROUTABLE'] = _loaded_rule['ROUTABLE']
_rule['TO_TYPE'] = _loaded_rule['TO_TYPE']
_rule['TIMER'] = _loaded_rule['TIMER']
break
logger.info('Rule (%s) NAME: %s SRC_TGID: %s DST_TGID: %s SRC_TS: %s DST_TS: %s ACTIVE: %s ROUTABLE: %s TO_TYPE: %s AFFILIATED: %s IGNORED: %s', _system, _rule['NAME'], _rule['SRC_GROUP'], _rule['DST_GROUP'], _rule['SRC_TS'], _rule['DST_TS'], _rule['ACTIVE'], _rule['ROUTABLE'], _rule['TO_TYPE'], _rule['AFFILIATED'], _rule['IGNORED'])
for _system in config['Systems']:
if _system not in rule_file.RULES:
logger.error('Routing rules not found for system %s', _system)
return rule_file.RULES
# Run this every minute for rule timer updates
def rule_timer_loop():
_now = time()
for _system in RULES:
for _rule in RULES[_system]['GROUP_VOICE']:
if _rule['ACTIVE'] == False:
continue
if _rule['TO_TYPE'] == 'ON':
if _rule['ROUTABLE'] == True:
if _rule['TIMER'] < _now:
_rule['ROUTABLE'] = False
logger.info('(%s) TG Routing timeout DEACTIVATE routing name %s, Target %s, TS %s, TGID %s', _system, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], _rule['DST_GROUP'])
else:
timeout_in = _rule['TIMER'] - _now
logger.info('(%s) TG Routing ACTIVE with ON timer running Timeout eligible in %ds, Rule name %s, Target %s, TS %s, TGID %s', _system, timeout_in, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], _rule['DST_GROUP'])
elif _rule['TO_TYPE'] == 'OFF':
if _rule['ROUTABLE'] == False:
if _rule['TIMER'] < _now:
_rule['ROUTABLE'] = True
logger.info('(%s) TG Routing timeout ACTIVATE Rule name %s, Target %s, TS %s, TGID %s', _system, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], _rule['DST_GROUP'])
else:
timeout_in = _rule['TIMER'] - _now
logger.info('(%s) TG Routing DEACTIVATE with OFF timer running Timeout eligible in %ds, Rule name %s, Target %s, TS %s, TGID %s', _system, timeout_in, _rule['NAME'], _rule['DST_NET'], _rule['DST_TS'], _rule['DST_GROUP'])
else:
logger.debug('Routable rule timer loop made no rule changes')
# ---------------------------------------------------------------------------
# Class Declaration
# This implements the router network FNE logic.
# ---------------------------------------------------------------------------
class routerFNE(coreFNE):
def __init__(self, _name, _config, _logger, _act_log_file, _report):
coreFNE.__init__(self, _name, _config, _logger, _act_log_file, _report)
# Status information for the system, TS1 & TS2
# 1 & 2 are "timeslot"
# In TX_EMB_LC, 2-5 are burst B-E
self.STATUS = {
1: {
'RX_START': time(),
'RX_PEER_ID': 0,
'RX_SEQ': 0,
'RX_RFS': 0,
'TX_RFS': 0,
'RX_STREAM_ID': 0,
'TX_STREAM_ID': 0,
'RX_TGID': 0,
'TX_TGID': 0,
'TX_PI_TGID': 0,
'RX_TIME': time(),
'TX_TIME': time(),
'RX_TYPE': fne_const.DT_TERMINATOR_WITH_LC,
'RX_LC': 0,
'RX_PI_LC': 0,
'TX_H_LC': 0,
'TX_P_LC': 0,
'TX_T_LC': 0,
'TX_EMB_LC': {
1: 0,
2: 0,
3: 0,
4: 0,
},
'P25_RX_CT': 'group'
},
2: {
'RX_START': time(),
'RX_PEER_ID': 0,
'RX_SEQ': 0,
'RX_RFS': 0,
'TX_RFS': 0,
'RX_STREAM_ID': 0,
'TX_STREAM_ID': 0,
'RX_TGID': 0,
'TX_TGID': 0,
'TX_PI_TGID': 0,
'RX_TIME': time(),
'TX_TIME': time(),
'RX_TYPE': fne_const.DT_TERMINATOR_WITH_LC,
'RX_LC': 0,
'RX_PI_LC': 0,
'TX_H_LC': 0,
'TX_P_LC': 0,
'TX_T_LC': 0,
'TX_EMB_LC': {
1: 0,
2: 0,
3: 0,
4: 0,
},
'P25_RX_CT': 'group'
}
}
rid_tid_update_timer = task.LoopingCall(self.rid_tid_update_loop)
rid_tid_update_timer.start(240)
def dmrd_validate(self, _peer_id, _rf_src, _dst_id, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id):
pkt_time = time()
if get_valid(_rf_src, black_rids) == True:
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) DMRD: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Blacklisted RID)', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,BLACKLISTED RID,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return False
# Always validate a terminator if the source is valid
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC):
return True
if _call_type == 'group':
if (RULES[self._system]['SEND_TGID'] == True) and (get_valid(_dst_id, config['Systems'][self._system]['ACTIVE_TG_IDS']) == False):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) DMRD: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Illegal TGID)', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL TGID,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return False
return True
def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
pkt_time = time()
dmrpkt = _data[20:53]
_bits = _data[15]
if ((_frame_type == fne_const.FT_DATA_SYNC) and ((_dtype_vseq == fne_const.DT_DATA_HEADER) or (_dtype_vseq == fne_const.DT_RATE_12_DATA) or
(_dtype_vseq == fne_const.DT_RATE_34_DATA) or (_dtype_vseq == fne_const.DT_RATE_1_DATA))):
self._logger.info('(%s) DMRD: Traffic *DATA * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PDU,DATA,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return
if _call_type == 'group':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) DMRD: Traffic *CALL COLLISION * PEER %s SRC_ID %s TGID %s TS %s [STREAM ID %s] (Collided with existing call)', self._system,
_peer_id, _rf_src, _dst_id, _slot, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,CALL COLLISION,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) DMRD: Traffic *CALL START * PEER %s SRC_ID %s TGID %s TS %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _slot, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,START,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
# If we can, use the LC from the voice header as to keep all
# options intact
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
lcHeader = lc.decode_lc_header(dmrpkt)
self.STATUS[_slot]['RX_LC'] = lcHeader['LC'][:9]
# If we don't have a voice header then don't wait to decode it
# from the Embedded LC
# just make a new one from the HBP header. This is good
# enough, and it saves lots of time
else:
self.STATUS[_slot]['RX_LC'] = const.LC_OPT + short_to_bytes(_dst_id) + short_to_bytes(_rf_src)
self.STATUS[_slot]['RX_PI_LC'] = const.LC_PI_OPT + b'\x00\x00\x00' + b'\x00\x00'
self._logger.debug('(%s) TS %s [STREAM ID %s] RX_LC %s', self._system, _slot, _stream_id, ahex(self.STATUS[_slot]['RX_LC']))
# If we can, use the PI LC from the PI voice header as to keep all
# options intact
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_PI_HEADER:
lcHeader = lc.decode_lc_header(dmrpkt)
_alg_id = lcHeader['LC'][0] & 0x7
_key_id = lcHeader['LC'][2]
self._logger.info('(%s) DMRD: Traffic *CALL PI PARAMS * PEER %s DST_ID %s TS %s ALGID %s KID %s [STREAM ID %s]', self._system,
_peer_id, _dst_id, _slot, _alg_id, _key_id, _stream_id)
self.STATUS[_slot]['RX_PI_LC'] = lcHeader['LC'][:10]
self._logger.debug('(%s) TS %s [STREAM ID %s] RX_PI_LC %s', self._system, _slot, _stream_id, ahex(self.STATUS[_slot]['RX_PI_LC']))
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# skip if the target doesn't exist
if not (_target in systems):
continue
_target_status = systems[_target].STATUS
if (rule['SRC_GROUP'] == _dst_id and rule['SRC_TS'] == _slot and rule['ACTIVE'] == True and rule['ROUTABLE'] == True):
# BEGIN CONTENTION HANDLING
#
# The rules for each of the 4 "ifs" below are listed here
# for readability. The Frame To Send is:
# From a different group than last RX from this system,
# but it has been less than Group Hangtime
# From a different group than last TX to this system,
# but it has been less than Group Hangtime
# From the same group as the last RX from this system,
# but from a different subscriber, and it has been less
# than stream timeout
# From the same group as the last TX to this system,
# but from a different subscriber, and it has been less
# than stream timeout
# The "continue" at the end of each means the next
# iteration of the for loop that tests for matching rules
#
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, target active or in group hangtime: PRID %s TS %s TGID %s', self._system,
rule['DST_GROUP'], _target, rule['DST_TS'], _target_status[rule['DST_TS']]['RX_TGID'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], rule['DST_GROUP']))
continue
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['TX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, target in group hangtime: PRID %s TS %s TGID %s', self._system,
rule['DST_GROUP'], _target, rule['DST_TS'], _target_status[rule['DST_TS']]['TX_TGID'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], rule['DST_GROUP']))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < fne_const.STREAM_TO):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed to TGID %s, matching call already active on target: PRID %s TS %s TGID %s', self._system,
rule['DST_GROUP'], _target, rule['DST_TS'], _target_status[rule['DST_TS']]['RX_TGID'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], rule['DST_GROUP']))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['TX_TGID']) and (_rf_src != _target_status[rule['DST_TS']]['TX_RFS']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < fne_const.STREAM_TO):
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
self._logger.info('(%s) DMRD: Call not routed for SUB %s, call route in progress on target: PRID %s TS %s TGID %s SUB %s', self._system,
_rf_src, _target, rule['DST_TS'], _target_status[rule['DST_TS']]['TX_TGID'], _target_status[rule['DST_TS']]['TX_RFS'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], rule['DST_GROUP']))
continue
# Set values for the contention handler to test next time
# there is a frame to forward
_target_status[rule['DST_TS']]['TX_TIME'] = pkt_time
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) or (_target_status[rule['DST_TS']]['TX_RFS'] != _rf_src) or (_target_status[rule['DST_TS']]['TX_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_TGID'] = rule['DST_GROUP']
_target_status[rule['DST_TS']]['TX_PI_TGID'] = 0
_target_status[rule['DST_TS']]['TX_STREAM_ID'] = _stream_id
_target_status[rule['DST_TS']]['TX_RFS'] = _rf_src
# Generate LCs (full and EMB) for the TX stream
dst_lc = self.STATUS[_slot]['RX_LC'][0:3] + short_to_bytes(rule['DST_GROUP']) + short_to_bytes(_rf_src)
_target_status[rule['DST_TS']]['TX_H_LC'] = bptc.encode_header_lc(dst_lc)
_target_status[rule['DST_TS']]['TX_T_LC'] = bptc.encode_terminator_lc(dst_lc)
_target_status[rule['DST_TS']]['TX_EMB_LC'] = bptc.encode_emblc(dst_lc)
dst_pi_lc = self.STATUS[_slot]['RX_PI_LC'][0:7] + short_to_bytes(rule['DST_GROUP']) + b'\x00\x00'
_target_status[rule['DST_TS']]['TX_P_LC'] = bptc.encode_header_pi(dst_pi_lc)
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_H_LC %s', self._system, _slot, _stream_id, ahex(dst_lc))
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_P_LC %s', self._system, _slot, _stream_id, ahex(dst_pi_lc))
self._logger.debug('(%s) DMR Packet DST TGID %s does not match SRC TGID %s - Generating FULL and EMB LCs',
self._system, rule['DST_GROUP'], _dst_id)
self._logger.info('(%s) DMRD: Call routed to SYSTEM %s TS %s TGID %s',
self._system, _target, rule['DST_TS'], rule['DST_GROUP'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,TO,DMR,{},{},{},{}'.format(self._system, _target, rule['DST_TS'], rule['DST_GROUP']))
_pi_dst_id = bytes_to_int(self.STATUS[_slot]['RX_PI_LC'][7:10])
if (_pi_dst_id != 0) and (_target_status[rule['DST_TS']]['TX_PI_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_PI_TGID'] = rule['DST_GROUP']
# Generate LCs (full and EMB) for the TX stream
dst_pi_lc = self.STATUS[_slot]['RX_PI_LC'][0:7] + short_to_bytes(rule['DST_GROUP']) + b'\x00\x00'
_target_status[rule['DST_TS']]['TX_P_LC'] = bptc.encode_header_pi(dst_pi_lc)
self._logger.debug('(%s) TS %s [STREAM ID %s] TX_P_LC %s', self._system, _slot, _stream_id, ahex(dst_pi_lc))
self._logger.info('(%s) DMRD: Call PI parameters routed to SYSTEM %s TS %s TGID %s',
self._system, _target, rule['DST_TS'], rule['DST_GROUP'])
# Handle any necessary re-writes for the destination
if rule['SRC_TS'] != rule['DST_TS']:
_tmp_bits = _bits ^ 1 << 7
else:
_tmp_bits = _bits
try:
_tgt_peer_id = self._CONFIG['Systems'][_target]['PeerId']
except KeyError:
_tgt_peer_id = self.STATUS[_slot]['RX_PEER_ID']
# somehow we've gotten a 0 for the peer ID -- so now we'll spoof the bitch
if (_tgt_peer_id == 0):
self._logger.warning('(%s) DMRD: Some how we got a 0 peer ID? This shouldn\'t happen, spoofing to %s',
self._system, _peer_id)
_tgt_peer_id = _peer_id
_tmp_data = _data[:8] + short_to_bytes(rule['DST_GROUP']) + int_to_bytes(_tgt_peer_id) + _tmp_bits.to_bytes(1, "big") + _data[16:20]
# MUST TEST FOR NEW STREAM AND IF SO, RE-WRITE THE LC FOR THE TARGET
# MUST RE-WRITE DESTINATION TGID IF DIFFERENT
# if _dst_id != rule['DST_GROUP']:
dmrbits = bitarray(endian='big')
dmrbits.frombytes(dmrpkt)
# Create a voice header packet (FULL LC)
if _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_LC_HEADER:
dmrbits = _target_status[rule['DST_TS']]['TX_H_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_H_LC'][98:197]
# Create a voice PI header packet (FULL LC)
elif _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_VOICE_PI_HEADER:
dmrbits = _target_status[rule['DST_TS']]['TX_P_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_P_LC'][98:197]
# Create a voice terminator packet (FULL LC)
elif _frame_type == fne_const.FT_DATA_SYNC and _dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC:
dmrbits = _target_status[rule['DST_TS']]['TX_T_LC'][0:98] + dmrbits[98:166] + _target_status[rule['DST_TS']]['TX_T_LC'][98:197]
# Create a Burst B-E packet (Embedded LC)
elif _dtype_vseq in [1,2,3,4]:
dmrbits = dmrbits[0:116] + _target_status[rule['DST_TS']]['TX_EMB_LC'][_dtype_vseq] + dmrbits[148:264]
dmrpkt = dmrbits.tobytes()
_tmp_data = _tmp_data + dmrpkt + _data[53:55]
# Transmit the packet to the destination system
systems[_target].send_system(_tmp_data)
self._logger.debug('(%s) DMR Packet routed by rule %s to %s SYSTEM %s',
self._system, rule['NAME'], self._CONFIG['Systems'][_target]['Mode'], _target)
# Final actions - Is this a voice terminator?
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
self._logger.info('(%s) DMRD: Traffic *CALL END * PEER %s SRC_ID %s TGID %s TS %s DUR %s [STREAM ID: %s]', self._system,
_peer_id, _rf_src, _dst_id, _slot, call_duration, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,END,DMR,{},{},{},{},{},{},{:.2f}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id, call_duration))
#
# Begin in-band signalling for call end. This has nothign to
# do with routing traffic directly.
#
# Iterate the rules dictionary
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# TGID matches a rule source, reset its timer
if _slot == rule['SRC_TS'] and _dst_id == rule['SRC_GROUP'] and ((rule['TO_TYPE'] == 'ON' and (rule['ROUTABLE'] == True)) or (rule['TO_TYPE'] == 'OFF' and rule['ROUTABLE'] == False)):
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) DMRD: Source group transmission match for rule %s. Reset timeout to %s', self._system, rule['NAME'], rule['TIMER'])
# Scan for reciprocal rules and reset their timers as
# well.
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) DMRD: Reciprocal group transmission match for rule %s on IPSC %s. Reset timeout to %s', self._system, target_rule['NAME'], _target, rule['TIMER'])
# TGID matches an ACTIVATION trigger
if _dst_id in rule['ON']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = True
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) DMRD: Primary routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = True
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) DMRD: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
# TGID matches an DE-ACTIVATION trigger
if _dst_id in rule['OFF']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = False
self._logger.info('(%s) DMRD: Routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
_target = rule['DST_NET']
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = False
self._logger.info('(%s) DMRD: DMR Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
#
# END IN-BAND SIGNALLING
#
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
elif _call_type == 'unit':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) DMRD: Traffic *CALL COLLISION * PEER %s SRC_ID %s DST_ID %s TS %s [STREAM ID %s] (Collided with existing call)', self._system,
_peer_id, _rf_src, _dst_id, _slot, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,CALL COLLISION,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) DMRD: Traffic *PRV CALL START * PEER %s SRC_ID %s DST_ID %s TS %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _slot, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,START,DMR,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
# Final actions - Is this a voice terminator?
if (_frame_type == fne_const.FT_DATA_SYNC) and (_dtype_vseq == fne_const.DT_TERMINATOR_WITH_LC) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
self._logger.info('(%s) DMRD: Traffic *PRV CALL END * PEER %s SRC_ID %s DST_ID %s TS %s DUR %s [STREAM ID: %s]', self._system,
_peer_id, _rf_src, _dst_id, _slot, call_duration, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,END,DMR,{},{},{},{},{},{},{:.2f}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id, call_duration))
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
def p25d_preprocess(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id, _data):
pkt_time = time()
p25pkt = _data[24:]
_lcf = int(_data[4])
_slot = 1 # fake the slot data, P25 doesn't have this
# Log but ignore TSDU or PDU packets here
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
if (_duid == fne_const.P25_DUID_TSDU):
if (_lcf == fne_const.P25_TSBK_IOSP_GRP_AFF):
self._logger.info('(%s) P25D: Traffic *TSBK GRP AFF * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
self.update_grp_aff(_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,GRP AFF,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
elif (_lcf == fne_const.P25_TSBK_OSP_U_DEREG_ACK):
self._logger.info('(%s) P25D: Traffic *TSBK U DEREG ACK* PEER %s SRC_ID %s [STREAM ID %s]', self._system,
_peer_id, _dst_id, _stream_id)
self.remove_grp_aff(_peer_id, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,U DEREG ACK,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
elif (_lcf == fne_const.P25_TSBK_OSP_ADJ_STS_BCAST):
self._logger.info('(%s) P25D: Traffic *TSBK ADJ STS BCS* PEER %s [STREAM ID %s]', self._system,
_peer_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,ADJ STS BCS,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
elif (_lcf == fne_const.P25_LCF_TSBK_CALL_ALERT):
self._logger.info('(%s) P25D: Traffic *TSBK CALL ALERT * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,CALL ALERT,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
elif (_lcf == fne_const.P25_LCF_TSBK_ACK_RSP_FNE):
self._logger.info('(%s) P25D: Traffic *TSBK ACK RSP * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('TSBK,ACK RSP,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
elif (_duid == fne_const.P25_DUID_PDU):
self._logger.info('(%s) P25D: Traffic *DATA * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PDU,DATA,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
return
def p25d_validate(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id):
pkt_time = time()
_slot = 1
if get_valid(_rf_src, black_rids) == True:
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Blacklisted RID)', self._system,
_peer_id, _rf_src, _dst_id, _duid, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,BLACKLISTED RID,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
return False
# Always validate a TSDU or PDU if the source is valid
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
return True
# Always validate a terminator if the source is valid
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)):
return True
if _call_type == 'group':
if (RULES[self._system]['SEND_TGID'] == True) and (get_valid(_dst_id, config['Systems'][self._system]['ACTIVE_TG_IDS']) == False):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self.STATUS[_slot]['P25_RX_CT'] = 'group'
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Illegal TGID)', self._system,
_peer_id, _rf_src, _dst_id, _duid, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL TGID,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
return False
elif _call_type == 'unit':
if ((get_valid(_rf_src, white_rids) == False and get_valid(_dst_id, white_rids) == False) or
(get_valid(_rf_src, white_rids) == False or get_valid(_dst_id, white_rids) == False)):
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
# Mark status variables for use later
self.STATUS[_slot]['RX_START'] = pkt_time
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self.STATUS[_slot]['P25_RX_CT'] = 'unit'
self._logger.warning('(%s) P25D: Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s DUID %s [STREAM ID %s] (Illegal RID)', self._system,
_peer_id, _rf_src, _dst_id, _duid, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,ILLEGAL RID,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, 1, _dst_id))
return False
return True
def p25d_received(self, _peer_id, _rf_src, _dst_id, _call_type, _duid, _dtype_vseq, _stream_id, _data):
pkt_time = time()
p25pkt = _data[24:]
_lcf = int(_data[4])
_slot = 1 # fake the slot data, P25 doesn't have this
# Ignore TSDU or PDU packets here
if ((_duid == fne_const.P25_DUID_TSDU) or (_duid == fne_const.P25_DUID_PDU)):
return
# Override call type if necessary
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
if self.STATUS[_slot]['P25_RX_CT'] != _call_type:
_call_type = self.STATUS[_slot]['P25_RX_CT']
if _call_type == 'group':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) and ((_duid != fne_const.P25_DUID_TDU) and (_duid != fne_const.P25_DUID_TDULC)):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) P25D: Traffic *CALL COLLISION * PEER %s SRC_ID %s TGID %s [STREAM ID %s] (Collided with existing call)', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,CALL COLLISION,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) P25D: Traffic *CALL START * PEER %s SRC_ID %s TGID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,START,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# skip if the target doesn't exist
if not (_target in systems):
continue
_target_status = systems[_target].STATUS
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)):
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
if (rule['SRC_GROUP'] == _dst_id and rule['ACTIVE'] == True and rule['ROUTABLE'] == True):
# BEGIN CONTENTION HANDLING
#
# The rules for each of the 4 "ifs" below are listed here
# for readability. The Frame To Send is:
# From a different group than last RX from this system,
# but it has been less than Group Hangtime
# From a different group than last TX to this system,
# but it has been less than Group Hangtime
# From the same group as the last RX from this system,
# but from a different subscriber, and it has been less
# than stream timeout
# From the same group as the last TX to this system,
# but from a different subscriber, and it has been less
# than stream timeout
# The "continue" at the end of each means the next
# iteration of the for loop that tests for matching rules
#
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['RX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['RX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
self._logger.info('(%s) P25D: Call not routed to TGID %s, target active or in group hangtime: PRID %s TGID %s', self._system,
rule['DST_GROUP'], _target, _target_status[rule['DST_TS']]['RX_TGID'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, rule['DST_GROUP']))
continue
if ((rule['DST_GROUP'] != _target_status[rule['DST_TS']]['TX_TGID']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < RULES[_target]['GROUP_HANGTIME'])):
self._logger.info('(%s) P25D: Call not routed to TGID %s, target in group hangtime: PRID %s TGID %s', self._system,
rule['DST_GROUP'], _target, _target_status[rule['DST_TS']]['TX_TGID'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, rule['DST_GROUP']))
continue
if (rule['DST_GROUP'] == _target_status[rule['DST_TS']]['TX_TGID']) and (_rf_src != _target_status[rule['DST_TS']]['TX_RFS']) and ((pkt_time - _target_status[rule['DST_TS']]['TX_TIME']) < fne_const.STREAM_TO):
self._logger.info('(%s) P25D: Call not routed for SRC_ID %s, call route in progress on target: PRID %s TGID %s SRC_ID %s', self._system,
_rf_src, _target, _target_status[rule['DST_TS']]['TX_TGID'], _target_status[rule['DST_TS']]['TX_RFS'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,FAILED,P25,{},{},{},{}'.format(self._system, _target, 1, rule['DST_GROUP']))
continue
# Set values for the contention handler to test next time
# there is a frame to forward
_target_status[rule['DST_TS']]['TX_TIME'] = pkt_time
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) or (_target_status[rule['DST_TS']]['TX_RFS'] != _rf_src) or (_target_status[rule['DST_TS']]['TX_TGID'] != rule['DST_GROUP']):
# Record the DST TGID and Stream ID
_target_status[rule['DST_TS']]['TX_TGID'] = rule['DST_GROUP']
_target_status[rule['DST_TS']]['TX_STREAM_ID'] = _stream_id
_target_status[rule['DST_TS']]['TX_RFS'] = _rf_src
self._logger.info('(%s) P25D: Call routed to SYSTEM %s TGID %s', self._system, _target, rule['DST_GROUP'])
if config['Reports']['Report']:
self._report.send_routeEvent('CALL ROUTE,TO,P25,{},{},{},{}'.format(self._system, _target, 1, rule['DST_GROUP']))
try:
_tgt_peer_id = self._CONFIG['Systems'][_target]['PeerId']
except KeyError:
_tgt_peer_id = self.STATUS[_slot]['RX_PEER_ID']
# somehow we've gotten a 0 for the peer ID -- so now we'll spoof the bitch
if (_tgt_peer_id == 0):
self._logger.warning('(%s) P25D: Some how we got a 0 peer ID? This shouldn\'t happen, spoofing to %s',
self._system, _peer_id)
_tgt_peer_id = _peer_id
_tmp_data = _data[:8] + short_to_bytes(rule['DST_GROUP']) + int_to_bytes(_tgt_peer_id) + _data[15:24]
_tmp_data = _tmp_data + p25pkt
# Transmit the packet to the destination system
systems[_target].send_system(_tmp_data)
self._logger.debug('(%s) P25 Packet routed by rule %s to %s SYSTEM %s', self._system, rule['NAME'], self._CONFIG['Systems'][_target]['Mode'], _target)
# Final actions - Is this a voice terminator?
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
self._logger.info('(%s) P25D: Traffic *CALL END * PEER %s SRC_ID %s TGID %s DUR %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, call_duration, _stream_id)
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('GROUP VOICE,END,P25,{},{},{},{},{},{},{:.2f}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id, call_duration))
#
# Begin in-band signalling for call end. This has nothign to
# do with routing traffic directly.
#
# Iterate the rules dictionary
for rule in RULES[self._system]['GROUP_VOICE']:
_target = rule['DST_NET']
# TGID matches a rule source, reset its timer
if _dst_id == rule['SRC_GROUP'] and ((rule['TO_TYPE'] == 'ON' and (rule['ROUTABLE'] == True)) or (rule['TO_TYPE'] == 'OFF' and rule['ROUTABLE'] == False)):
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) P25D: Source group transmission match for rule %s. Reset timeout to %s', self._system, rule['NAME'], rule['TIMER'])
# Scan for reciprocal rules and reset their timers as
# well.
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) P25D: Reciprocal group transmission match for rule %s on IPSC %s. Reset timeout to %s', self._system, target_rule['NAME'], _target, rule['TIMER'])
# TGID matches an ACTIVATION trigger
if _dst_id in rule['ON']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = True
rule['TIMER'] = pkt_time + rule['TIMEOUT']
self._logger.info('(%s) P25D: Primary routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = True
target_rule['TIMER'] = pkt_time + target_rule['TIMEOUT']
self._logger.info('(%s) P25D: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
# TGID matches an DE-ACTIVATION trigger
if _dst_id in rule['OFF']:
# Set the matching rule as ROUTABLE
rule['ROUTABLE'] = False
self._logger.info('(%s) P25D: Routing Rule %s changed to state: %s', self._system, rule['NAME'], rule['ROUTABLE'])
# Set reciprocal rules for other IPSCs as ROUTABLE
_target = rule['DST_NET']
for target_rule in RULES[_target]['GROUP_VOICE']:
if target_rule['NAME'] == rule['NAME']:
target_rule['ROUTABLE'] = False
self._logger.info('(%s) P25D: Reciprocal routing Rule %s in IPSC %s changed to state: %s', self._system, target_rule['NAME'], _target, rule['ROUTABLE'])
#
# END IN-BAND SIGNALLING
#
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
elif _call_type == 'unit':
# Is this a new call stream?
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']) and ((_duid != fne_const.P25_DUID_TDU) and (_duid != fne_const.P25_DUID_TDULC)):
if (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC) and (pkt_time < (self.STATUS[_slot]['RX_TIME'] + fne_const.STREAM_TO)) and (_rf_src != self.STATUS[_slot]['RX_RFS']):
self._logger.warning('(%s) P25D: Traffic *CALL COLLISION * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Collided with existing call)', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,CALL COLLISION,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return
# This is a new call stream
self.STATUS[_slot]['RX_START'] = pkt_time
self._logger.info('(%s) P25D: Traffic *PRV CALL START * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
self.STATUS[_slot]['P25_RX_CT'] = 'unit'
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,START,P25,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
# Final actions - Is this a voice terminator?
if ((_duid == fne_const.P25_DUID_TDU) or (_duid == fne_const.P25_DUID_TDULC)) and (self.STATUS[_slot]['RX_TYPE'] != fne_const.DT_TERMINATOR_WITH_LC):
call_duration = pkt_time - self.STATUS[_slot]['RX_START']
_dst_id = self.STATUS[_slot]['RX_TGID']
_rf_src = self.STATUS[_slot]['RX_RFS']
self._logger.info('(%s) P25D: Traffic *PRV CALL END * PEER %s SRC_ID %s DST_ID %s DUR %s [STREAM ID %s]', self._system,
_peer_id, _rf_src, _dst_id, call_duration, _stream_id)
self.STATUS[_slot]['P25_RX_CT'] = 'group'
if config['Reports']['Report']:
self._report.send_routeEvent('PRV VOICE,END,P25,{},{},{},{},{},{},{:.2f}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id, call_duration))
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_TIME'] = pkt_time
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
def peer_ignored(self, _peer_id, _rf_src, _dst_id, _call_type, _slot, _dtype_vseq, _stream_id, _is_source):
# Unit to unit call is always passed...
if _call_type == 'unit':
return False
if get_valid_ignore(_peer_id, _dst_id, config['Systems'][self._system]['TG_IGNORE_IDS']) == True:
if (_dst_id in config['Systems'][self._system]['TG_ALLOW_AFF']):
if (_peer_id in GRP_AFF.keys()):
if (_dst_id in GRP_AFF[_peer_id].keys()):
if (len(GRP_AFF[_peer_id][_dst_id]) > 0):
return False
if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
if _is_source == True:
# Mark status variables for use later
self.STATUS[_slot]['RX_PEER_ID'] = _peer_id
self.STATUS[_slot]['RX_RFS'] = _rf_src
self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
self.STATUS[_slot]['RX_TGID'] = _dst_id
self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
self._logger.warning('(%s) Traffic *REJECT ACL * PEER %s SRC_ID %s DST_ID %s [STREAM ID %s] (Ignored Peer)', self._system,
_peer_id, _rf_src, _dst_id, _stream_id)
if config['Reports']['Report']:
self._report.send_routeEvent('REJECT ACL,IGNORED PEER,ACL,{},{},{},{},{},{}'.format(self._system, _stream_id, _peer_id, _rf_src, _slot, _dst_id))
return True
return False
def peer_connected(self, _peer_id, _peer):
global white_rids
if white_rids:
self.send_peer_wrids(_peer_id, white_rids)
global black_rids
if black_rids:
self.send_peer_brids(_peer_id, black_rids)
_tg_ids = config['Systems'][self._system]['ACTIVE_TG_IDS']
if _tg_ids:
self.send_peer_tgids(_peer_id, _tg_ids)
_deactive_tg_ids = config['Systems'][self._system]['DEACTIVE_TG_IDS']
if _deactive_tg_ids:
self.send_peer_disabled_tgids(_peer_id, _deactive_tg_ids)
def update_grp_aff(self, _peer_id, _rf_src, _dst_id, _stream_id):
# make sure the peer exists in the affiliations table
if (not _peer_id in GRP_AFF.keys()):
GRP_AFF[_peer_id] = {}
# remove the source RID from any other affiliated TGs