93 lines
3.5 KiB
Python
93 lines
3.5 KiB
Python
# Copyright (c) 2013 Cortney T. Buffington, N0MJS and the K0USY Group. n0mjs@me.com
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#
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# This work is licensed under the Creative Commons Attribution-ShareAlike
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# 3.0 Unported License.To view a copy of this license, visit
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# http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to
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# Creative Commons, 444 Castro Street, Suite 900, Mountain View,
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# California, 94041, USA.
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from __future__ import print_function
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from twisted.internet.protocol import DatagramProtocol
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from twisted.internet import reactor
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from twisted.internet import task
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import binascii
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import dmrlink
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from dmrlink import IPSC, UnauthIPSC, NETWORK, networks, get_info
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class bridgeIPSC(IPSC):
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def __init__(self, *args, **kwargs):
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IPSC.__init__(self, *args, **kwargs)
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self.ACTIVE_CALLS = []
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def datagramReceived(self, data, (host, port)):
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print(binascii.b2a_hex(data))
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#************************************************
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# CALLBACK FUNCTIONS FOR USER PACKET TYPES
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#************************************************
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def call_ctl_1(self, _network, _data):
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pass
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def call_ctl_2(self, _network, _data):
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pass
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def call_ctl_3(self, _network, _data):
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pass
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def xcmp_xnl(self, _network, _data):
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pass
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def group_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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for source in NETWORK[_network]['RULES']['GROUP_VOICE']:
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# Matching for rules is against the Destination Group in the SOURCE packet (SRC_GROUP)
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if source['SRC_GROUP'] == _src_group:
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_target = source['DST_NET']
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_target_sock = NETWORK[_target]['MASTER']['IP'], NETWORK[_target]['MASTER']['PORT']
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# Re-Write the IPSC SRC to match the target network's ID
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_data = _data.replace(_peerid, NETWORK[_target]['LOCAL']['RADIO_ID'])
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# Re-Write the destinaion Group ID
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_data = _data.replace(_src_group, source['DST_GROUP'])
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# Calculate and append the authentication hash for the target network... if necessary
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if NETWORK[_target]['LOCAL']['AUTH_KEY'] == True:
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_data = hashed_packet(NETWORK[_target]['LOCAL']['AUTH_KEY'], _data)
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# Send the packet to all peers in the target IPSC
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send_to_ipsc(_target, _data)
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def private_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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pass
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def group_data(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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pass
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def private_data(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
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pass
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class bridgeUnauthIPSC(logIPSC):
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# There isn't a hash to build, so just return the data
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#
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def hashed_packet(self, _key, _data):
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return _data
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# Remove the hash from a packet and return the payload
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#
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def strip_hash(self, _data):
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return _data
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# Everything is validated, so just return True
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#
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def validate_auth(self, _key, _data):
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return True
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for ipsc_network in NETWORK:
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if (NETWORK[ipsc_network]['LOCAL']['ENABLED']):
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if NETWORK[ipsc_network]['LOCAL']['AUTH_ENABLED'] == True:
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networks[ipsc_network] = bridgeIPSC(ipsc_network)
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else:
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networks[ipsc_network] = bridgeUnauthIPSC(ipsc_network)
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reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], networks[ipsc_network])
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reactor.run() |