DMRlink/bridge.py
Cort Buffington 1331726028 Add first two applications
As of now, dmrlink.py is only a behind the scenes worker... It's just
the base class to take care of link establishment and maintenance.
Applications, such as bridging or logging will now be in their own
files and inherit from dmrlink.py
2013-10-29 07:09:18 -05:00

77 lines
3.0 KiB
Python

# Copyright (c) 2013 Cortney T. Buffington, N0MJS n0mjs@me.com
#
# This work is licensed under the Creative Commons Attribution-ShareAlike
# 3.0 Unported License.To view a copy of this license, visit
# http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to
# Creative Commons, 444 Castro Street, Suite 900, Mountain View,
# California, 94041, USA.
from __future__ import print_function
from twisted.internet.protocol import DatagramProtocol
from twisted.internet import reactor
from twisted.internet import task
import binascii
import dmrlink
from dmrlink import IPSC, UnauthIPSC, NETWORK, networks, get_info
class bridgeIPSC(IPSC):
def __init__(self, *args, **kwargs):
IPSC.__init__(self, *args, **kwargs)
self.ACTIVE_CALLS = []
def datagramReceived(self, data, (host, port)):
print(binascii.b2a_hex(data))
#************************************************
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
#************************************************
def call_ctl_1(self, _network, _data):
pass
def call_ctl_2(self, _network, _data):
pass
def call_ctl_3(self, _network, _data):
pass
def xcmp_xnl(self, _network, _data):
pass
def group_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
for source in NETWORK[_network]['RULES']['GROUP_VOICE']:
# Matching for rules is against the Destination Group in the SOURCE packet (SRC_GROUP)
if source['SRC_GROUP'] == _src_group:
_target = source['DST_NET']
_target_sock = NETWORK[_target]['MASTER']['IP'], NETWORK[_target]['MASTER']['PORT']
# Re-Write the IPSC SRC to match the target network's ID
_data = _data.replace(_peerid, NETWORK[_target]['LOCAL']['RADIO_ID'])
# Re-Write the destinaion Group ID
_data = _data.replace(_src_group, source['DST_GROUP'])
# Calculate and append the authentication hash for the target network... if necessary
if NETWORK[_target]['LOCAL']['AUTH_KEY'] == True:
_data = hashed_packet(NETWORK[_target]['LOCAL']['AUTH_KEY'], _data)
# Send the packet to all peers in the target IPSC
send_to_ipsc(_target, _data)
def private_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
pass
def group_data(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
pass
def private_data(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
pass
for ipsc_network in NETWORK:
if (NETWORK[ipsc_network]['LOCAL']['ENABLED']):
if NETWORK[ipsc_network]['LOCAL']['AUTH_ENABLED'] == True:
networks[ipsc_network] = bridgeIPSC(ipsc_network)
else:
networks[ipsc_network] = UnauthIPSC(ipsc_network)
reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], networks[ipsc_network])
reactor.run()