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Initial Uplaod of Re-Org'd Files

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This commit is contained in:
Cort Buffington 2013-07-11 19:45:09 -05:00
parent 6aef3febc6
commit bd5b0a074d
7 changed files with 273 additions and 333 deletions
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3
README.md
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@ -31,6 +31,7 @@ The following sections of this document will include various packet types. This
CALL_CTL_3 = 0x63 |
XCMP_XNL = 0x70 Control protocol messages
GROUP_VOICE = 0x80 This is a group voice call
PVT_VOICE = 0x81 This is a private voice call
GROUP_DATA = 0x83 This is a group data call
PVT_DATA = 0x84 This is a private data call
RPT_WAKE_UP = 0x85 Wakes up all repeaters on the IPSC
@ -118,7 +119,7 @@ PEER LIST RESPONSE:
Byte 1 - 0x00 = Unknown
Byte 2 - 0x00 = Unknown
Byte 3 - BIT FLAGS:
x... .... = CBSK Message
x... .... = CSBK Message
.x.. .... = Repeater Call Monitoring
..x. .... = 3rd Party "Console" Application
...x xxxx = Unknown - default to 0

305
ipsc.py
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@ -2,141 +2,88 @@ from __future__ import print_function
from twisted.internet.protocol import DatagramProtocol
from twisted.internet import reactor
from twisted.internet import task
import sys
import argparse
import binascii
import hmac
import hashlib
import logging
from logging.config import dictConfig
dictConfig({
'version': 1,
'disable_existing_loggers': False,
'filters': {
},
'formatters': {
'verbose': {
'format': '%(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s'
},
'timed': {
'format': '%(levelname)s %(asctime)s %(message)s'
},
'simple': {
'format': '%(levelname)s %(message)s'
},
},
'handlers': {
'console': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'simple'
},
'file': {
'level': 'DEBUG',
'class': 'logging.FileHandler',
'formatter': 'simple',
'filename': '/tmp/ipsc.log',
},
'console-timed': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'timed'
},
'file-timed': {
'level': 'DEBUG',
'class': 'logging.FileHandler',
'formatter': 'timed',
'filename': '/tmp/ipsc.log',
},
},
'loggers': {
'ipsc': {
# 'handlers': ['file-timed', 'console-timed'],
'handlers': ['file', 'console'],
'level': 'DEBUG',
'propagate': True,
}
}
})
logger = logging.getLogger('ipsc')
#from logging.config import dictConfig
#import logging
# Data structure for holding IPSC information
#************************************************
# IMPORTING OTHER FILES - '#include'
#************************************************
# Import system logger configuration
try:
from ipsc_logger import logger
except ImportError:
sys.exit('System logger configuraiton not found or invalid')
# Import configuration and informational data structures
try:
from my_ipsc_config import NETWORK
except ImportError:
NETWORK = {
'IPSC1': {
'LOCAL': {
'DESCRIPTION': 'IPSC Network #1',
'MODE': b'\x65',
'FLAGS': b'\x00\x00\x80\xDC',
'PORT': 50001,
'ALIVE_TIMER': 10, # Seconds between keep-alives and registration attempts
'RADIO_ID': binascii.unhexlify('0000000A'),
'AUTH_KEY': binascii.unhexlify('0000000000000000000000000000000000000001')
},
'MASTER': {
'IP': '1.2.3.4',
'PORT': 50000,
'STATUS': {
'RADIO_ID': '',
'CONNECTED': 0,
'KEEP_ALIVES_MISSED': 0,
'MODE': b'\x00',
'FLAGS': b'\x00\x00\x00\x00',
}
},
'PEERS': []
}
}
# each list item contains {
# 'IP': '100.200.1.1',
# 'PORT': 50000,
# 'RADIO_ID': b'\x00\x00\x00\xFF',
# 'STATUS': {
# 'CONNECTED': 0,
# 'KEEP_ALIVES_MISSED': 0
# }
# },
#
# IPSC2.... etc... repeat as many times as you have resources for
sys.exit('Configuration file not found, or not valid formatting')
# Import IPSC message types and version information
try:
from ipsc_message_types import *
except ImportError:
sys.exit('IPSC message types file not found or invalid')
# Import IPSC flag mask values
try:
from ipsc_mask import *
except ImportError:
sys.exit('IPSC mask values file not found or invalid')
# Known IPSC Message Types
CALL_CTL_1 = b'\x61' # |
CALL_CTL_2 = b'\x62' # | Exact meaning unknown
CALL_CTL_3 = b'\x63' # |
XCMP_XNL = b'\x70' # XCMP/XNL control message
GROUP_VOICE = b'\x80'
GROUP_DATA = b'\x83'
PVT_DATA = b'\x84'
RPT_WAKE_UP = b'\x85' # Similar to OTA DMR "wake up"
MASTER_REG_REQ = b'\x90' # FROM peer TO master
MASTER_REG_REPLY = b'\x91' # FROM master TO peer
PEER_LIST_REQ = b'\x92'
PEER_LIST_REPLY = b'\x93'
PEER_REG_REQUEST = b'\x94' # Peer registration request
PEER_REG_REPLY = b'\x95' # Peer registration reply
MASTER_ALIVE_REQ = b'\x96' # FROM peer TO master
MASTER_ALIVE_REPLY = b'\x97' # FROM master TO peer
PEER_ALIVE_REQ = b'\x98' # Peer keep alive request
PEER_ALIVE_REPLY = b'\x99' # Peer keep alive reply
DE_REG_REQ = b'\x9A' # Request de-registration from system
DE_REG_REPLY = b'\x9B' # De-registration reply
#************************************************
# GLOBALLY SCOPED FUNCTIONS
#************************************************
# IPSC Version Information
IPSC_OP_VER = b'\x04\x03' # 0x04, 0x03 -- seems to be current version of IPSC
IPSC_OLD_VER = b'\x04\x00' # 0x04, 0x02 -- oldest version of IPSC suppoerted
IPSC_VER = IPSC_OP_VER + IPSC_OLD_VER
def hashed_packet(_key, _data):
hash = binascii.unhexlify((hmac.new(_key,_data,hashlib.sha1)).hexdigest()[:20])
return (_data + hash)
def validate_auth(_key, _data):
return
def hashed_packet(key, data):
hash = binascii.unhexlify((hmac.new(key,data,hashlib.sha1)).hexdigest()[:20])
return (data + hash)
def print_mode_decode(_mode):
_mode = int(_mode, 16)
link_op = _mode & PEER_OP_MSK
link_mode = _mode & PEER_MODE_MSK
ts1 = _mode & IPSC_TS1_MSK
ts2 = _mode & IPSC_TS2_MSK
if link_op == 0b01000000:
logger.info('\t\tPeer Operational')
elif link_op == 0b00000000:
logger.info('\t\tPeer Not Operational')
else:
logger.warning('\t\tPeer Mode Invalid')
if link_mode == 0b00000000:
logger.info('\t\tNo RF Interface')
elif link_mode == 0b00010000:
logger.info('\t\tRadio in Analog Mode')
elif link_mode == 0b00100000:
logger.info('\t\tRadio in Digital Mode')
else:
logger.warning('\t\tRadio Mode Invalid')
if ts1 == 0b00001000:
logger.info('\t\tIPSC Enabled on TS1')
if ts2 == 0b00000010:
logger.info('\t\tIPSC Enabled on TS2')
def print_peer_list(_ipsc_network):
logger.info('%s', _ipsc_network['LOCAL']['DESCRIPTION'])
logger.info('\t%s', _ipsc_network['LOCAL']['DESCRIPTION'])
for dictionary in _ipsc_network['PEERS']:
hex_address = dictionary['IP']
hex_port = dictionary['PORT']
@ -149,8 +96,14 @@ def print_peer_list(_ipsc_network):
logger.info('\tIP Address: %s.%s.%s.%s:%s', address[0], address[1], address[2], address[3], port)
logger.info('\tRADIO ID: %s ', radio_id)
logger.info("\tIPSC Mode: %s", hex_mode)
logger.info("\tIPSC Mode:")
print_mode_decode(hex_mode)
logger.info("")
#************************************************
# IPSC Network Engine
#************************************************
class IPSC(DatagramProtocol):
@ -173,35 +126,34 @@ class IPSC(DatagramProtocol):
# logger.debug("keepAlive Routine Running in Condition %s", _master_connected)
if (_master_connected == 0):
logger.info("*** Starting up IPSC Client and Registering to the Master ***")
reg_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.MASTER_REG_REQ_PKT)
self.transport.write(reg_packet, (self._config['MASTER']['IP'], self._config['MASTER']['PORT']))
logger.info("->> Sending Registration to Master:%s:%sFrom:%s\n", self._config['MASTER']['IP'], self._config['MASTER']['PORT'], binascii.b2a_hex(self._config['LOCAL']['RADIO_ID']))
logger.info("->> Master Registration Request To:%s:%s From:%s", self._config['MASTER']['IP'], self._config['MASTER']['PORT'], binascii.b2a_hex(self._config['LOCAL']['RADIO_ID']))
elif (_master_connected in (1,2)):
if (_master_connected == 1):
peer_list_req_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_LIST_REQ_PKT)
self.transport.write(peer_list_req_packet, (self._config['MASTER']['IP'], self._config['MASTER']['PORT']))
logger.info("->> Peer List Reqested from Master:%s:%s\n", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
logger.info("->> List Reqested from Master:%s:%s", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
master_alive_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.MASTER_ALIVE_PKT)
self.transport.write(master_alive_packet, (self._config['MASTER']['IP'], self._config['MASTER']['PORT']))
logger.info("->> Master Keep Alive Sent To:%s:%s\n", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
logger.info("->> Master Keep-alive Sent To:%s:%s", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
elif (_master_connected == 2):
master_alive_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.MASTER_ALIVE_PKT)
self.transport.write(master_alive_packet, (self._config['MASTER']['IP'], self._config['MASTER']['PORT']))
logger.info("->> Master Keep Alive Sent To:%s:%s\n", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
logger.info("->> Master Keep-alive Sent To:%s:%s", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
else:
logger.error("->> Resetting Masteter in UNKOWN STATE:%s:%s\n", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
logger.error("->> Master in UNKOWN STATE:%s:%s", self._config['MASTER']['IP'], self._config['MASTER']['PORT'])
# logger.debug("keepAlive Routine ending at Condition %s", _master_connected)
def startProtocol(self):
logger.debug("*** config: %s", self._config)
logger.info("")
#logger.debug("*** config: %s", self._config)
#logger.info("")
self._call = task.LoopingCall(self.keepAlive)
self._loop = self._call.start(self._config['LOCAL']['ALIVE_TIMER'])
@ -212,40 +164,41 @@ class IPSC(DatagramProtocol):
#logger.info("received %r from %s:%d", binascii.b2a_hex(data), host, port)
_packettype = (data[0:1])
_peerid = (data[1:5])
if (_packettype == MASTER_REG_REQ):
logger.info("<<- Registration Packet Recieved\n")
if (_packettype == PEER_ALIVE_REQ):
logger.info("<<- Peer Keep-alive Request From Peer ID %s at:%s:%s", int(binascii.b2a_hex(_peerid), 16), host, port)
peer_alive_req_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_ALIVE_REQ_PKT)
peer_alive_reply_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_ALIVE_REPLY_PKT)
self.transport.write(peer_alive_reply_packet, (host, port))
logger.info("->> Peer Keep-alive Reply sent To:%s:%s", host, port)
self.transport.write(peer_alive_req_packet, (host, port))
logger.info("->> Peer Keep-alive Request sent To:%s:%s", host, port)
#logger.info(binascii.b2a_hex(peer_alive_req_packet))
elif (_packettype == MASTER_ALIVE_REPLY):
logger.info("<<- Master Keep-alive Reply From:%s:%s", host, port)
elif (_packettype == PEER_ALIVE_REPLY):
logger.info("<<- Peer Keep-alive Reply From:%s:%s", host, port)
elif (_packettype == MASTER_REG_REQ):
logger.info("<<- Registration Packet Recieved")
elif (_packettype == MASTER_REG_REPLY):
self._config['MASTER']['STATUS']['CONNECTED'] = 1
logger.info("<<- Master Registration Reply From:%s:%s Setting Condition %s", host, port,self._config['MASTER']['STATUS']['CONNECTED'])
elif (_packettype == PEER_REG_REQUEST):
logger.info("<<- Peer Registration Request From:%s:%s", host, port)
logger.info("<<- Peer Registration Request From Peer ID %s at:%s:%s", int(binascii.b2a_hex(_peerid), 16), host, port)
peer_reg_reply_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_REG_REPLY_PKT)
self.transport.write(peer_reg_reply_packet, (host, port))
logger.info("->> Peer Registration Reply Sent To:%s:%s\n", host, port)
logger.info("->> Peer Registration Reply Sent To:%s:%s", host, port)
#logger.info("%s:%s", host, port)
#logger.info(binascii.b2a_hex(peer_reg_reply_packet))
elif (_packettype == PEER_ALIVE_REQ):
logger.info("<<- Received Peer Keep Alive From:%s:%s", host, port)
peer_alive_req_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_ALIVE_REQ_PKT)
peer_alive_reply_packet = hashed_packet(self._config['LOCAL']['AUTH_KEY'], self.PEER_ALIVE_REPLY_PKT)
self.transport.write(peer_alive_reply_packet, (host, port))
logger.info("->> Sent Peer Keep Alive Reply To:%s:%s", host, port)
self.transport.write(peer_alive_req_packet, (host, port))
logger.info("->> Sent Peer Keep Alive Request To:%s:%s\n", host, port)
#logger.info(binascii.b2a_hex(peer_alive_req_packet))
elif (_packettype == MASTER_ALIVE_REPLY):
logger.info("<<- Keep Alive Received from Master:%s:%s\n", host, port)
elif (_packettype == PEER_ALIVE_REPLY):
logger.info("<<- Keep Alive Received from Peer:%s:%s\n", host, port)
elif (_packettype == XCMP_XNL):
logger.info("<<- XCMP_XNL and/or Control Packet From:%s:%s\n", host, port)
logger.warning("<<- XCMP_XNL Packet From:%s:%s - We did not indicate XCMP capable!", host, port)
elif (_packettype == PEER_LIST_REPLY):
logger.info("<<- The Peer List has been Received from Master:%s:%s Setting Condition 2", host, port)
@ -263,28 +216,40 @@ class IPSC(DatagramProtocol):
print_peer_list(self._config)
logger.info("")
elif (_packettype == GROUP_VOICE):
logger.info("<<- Group Voice Packet From:%s:%s", host, port)
elif (_packettype == PVT_VOICE):
logger.info("<<- Voice Packet From:%s:%s", host, port)
elif (_packettype == GROUP_DATA):
logger.info("<<- Group Data Packet From:%s:%s", host, port)
elif (_packettype == PVT_DATA):
logger.info("<<- Private Data Packet From From:%s:%s", host, port)
elif (_packettype == RPT_WAKE_UP):
logger.info("<<- Repeater Wake-Up Packet From:%s:%s", host, port)
elif (_packettype == DE_REG_REQ):
logger.info("<<- Peer De-Registration Request From:%s:%s", host, port)
elif (_packettype == DE_REG_REPLY):
logger.info("<<- Peer De-Registration Reply From:%s:%s", host, port)
elif (_packettype in (CALL_CTL_1, CALL_CTL_2, CALL_CTL_3)):
logger.info("<<- Call Control Packet From:%s:%s", host, port)
else:
packet_type = binascii.b2a_hex(_packettype)
# logger.error("<<- Received Unprocessed Type %s From:%s:%s\n", packet_type, host, port)
logger.error("<<- Received Unprocessed Type %s From:%s:%s", packet_type, host, port)
#************************************************
# MAIN PROGRAM LOOP STARTS HERE
#************************************************
if __name__ == '__main__':
parser = argparse.ArgumentParser(description="Start an IPSC client.")
parser.add_argument('-n', '--network', required=False)
args = parser.parse_args()
if args.network is not None:
if args.network in NETWORK:
logger.info("Connecting to %s", args.network)
reactor.listenUDP(NETWORK[args.network]['LOCAL']['PORT'], IPSC(NETWORK[args.network]))
else:
logger.info("%s is not a configured ISPC network.", args.network)
exit()
else: # connect to all
logger.info("No network supplied, connecting to all networks.")
for ipsc_network in NETWORK:
reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], IPSC(NETWORK[ipsc_network]))
reactor.run()
logger.info('SYSTEM STARTING UP')
for ipsc_network in NETWORK:
reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], IPSC(NETWORK[ipsc_network]))
reactor.run()

25
ipsc_auth.py
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@ -1,25 +0,0 @@
import binascii
import hmac
import hashlib
PAYLOAD = binascii.unhexlify('9000c832686a0000e03c04030402')
AUTH_KEY = binascii.unhexlify('0000000000000000000000000000000000012345')
print type(PAYLOAD)
print type(AUTH_KEY)
print ""
HASH = (hmac.new(AUTH_KEY,PAYLOAD,hashlib.sha1)).hexdigest()[:20]
#PAY_HASH = HASH.hexdigest()[:20]
print binascii.b2a_hex(PAYLOAD)
print binascii.b2a_hex(AUTH_KEY)
print HASH
PACKET = binascii.b2a_hex(PAYLOAD) + HASH
print PACKET
# 27 86 3f 89 d5 a7 15 a8 31 55

55
ipsc_logger.py Normal file
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@ -0,0 +1,55 @@
# Logging system configuration
from logging.config import dictConfig
import logging
dictConfig({
'version': 1,
'disable_existing_loggers': False,
'filters': {
},
'formatters': {
'verbose': {
'format': '%(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s'
},
'timed': {
'format': '%(levelname)s %(asctime)s %(message)s'
},
'simple': {
'format': '%(levelname)s %(message)s'
},
},
'handlers': {
'console': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'simple'
},
'file': {
'level': 'DEBUG',
'class': 'logging.FileHandler',
'formatter': 'simple',
'filename': '/tmp/ipsc.log',
},
'console-timed': {
'level': 'DEBUG',
'class': 'logging.StreamHandler',
'formatter': 'timed'
},
'file-timed': {
'level': 'DEBUG',
'class': 'logging.FileHandler',
'formatter': 'timed',
'filename': '/tmp/ipsc.log',
},
},
'loggers': {
'ipsc': {
# 'handlers': ['file-timed', 'console-timed'],
'handlers': ['file-timed', 'console-timed'],
'level': 'DEBUG',
'propagate': True,
}
}
})
logger = logging.getLogger('ipsc')

43
ipsc_mask.py Normal file
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@ -0,0 +1,43 @@
# LINKING STATUS:
# Byte 1 - BIT FLAGS:
# xx.. .... = Peer Operational (01 only known valid value)
# ..xx .... = Peer MODE: 00 - No Radio, 01 - Analog, 10 - Digital
# .... xx.. = IPSC Slot 1: 10 on, 01 off
# .... ..xx = IPSC Slot 2: 10 on, 01 off
# MASK VALUES:
PEER_OP_MSK = 0b11000000
PEER_MODE_MSK = 0b00110000
IPSC_TS1_MSK = 0b00001100
IPSC_TS2_MSK = 0b00000011
#SERVICE FLAGS:
# Byte 1 - 0x00 = Unknown
# Byte 2 - 0x00 = Unknown
# Byte 3 - BIT FLAGS:
# x... .... = CBSK Message
# .x.. .... = Repeater Call Monitoring
# ..x. .... = 3rd Party "Console" Application
# ...x xxxx = Unknown - default to 0
# MASK VALUES:
CSBK_MSK = 0b10000000
RPT_MON_MSK = 0b01000000
CON_APP_MSK = 0b00100000
# Byte 4 = BIT FLAGS:
# x... .... = XNL Connected (1=true)
# .x.. .... = XNL Master Device
# ..x. .... = XNL Slave Device
# ...x .... = Set if packets are authenticated
# .... x... = Set if data calls are supported
# .... .x.. = Set if voice calls are supported
# .... ..x. = Unknown - default to 0
# .... ...x = Set if master
# MASK VALUES:
XNL_STAT_MSK = 0b10000000
XNL_MSTR_MSK = 0b01000000
XNL_SLAVE_MSK = 0b00100000
PKT_AUTH_MSK = 0b00010000
DATA_CALL_MSK = 0b00001000
VOICE_CALL_MSK = 0b00000100
MSTR_PEER_MSK = 0b00000001

38
ipsc_message_types.py Normal file
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@ -0,0 +1,38 @@
# Known IPSC Message Types
CALL_CTL_1 = b'\x61' # |
CALL_CTL_2 = b'\x62' # | Exact meaning unknown
CALL_CTL_3 = b'\x63' # |
XCMP_XNL = b'\x70' # XCMP/XNL control message
GROUP_VOICE = b'\x80'
PVT_VOICE = b'\x81'
GROUP_DATA = b'\x83'
PVT_DATA = b'\x84'
RPT_WAKE_UP = b'\x85' # Similar to OTA DMR "wake up"
MASTER_REG_REQ = b'\x90' # FROM peer TO master
MASTER_REG_REPLY = b'\x91' # FROM master TO peer
PEER_LIST_REQ = b'\x92'
PEER_LIST_REPLY = b'\x93'
PEER_REG_REQUEST = b'\x94' # Peer registration request
PEER_REG_REPLY = b'\x95' # Peer registration reply
MASTER_ALIVE_REQ = b'\x96' # FROM peer TO master
MASTER_ALIVE_REPLY = b'\x97' # FROM master TO peer
PEER_ALIVE_REQ = b'\x98' # Peer keep alive request
PEER_ALIVE_REPLY = b'\x99' # Peer keep alive reply
DE_REG_REQ = b'\x9A' # Request de-registration from system
DE_REG_REPLY = b'\x9B' # De-registration reply
# IPSC Version Information
IPSC_VER_14 = b'\x00'
IPSC_VER_15 = b'\x00'
IPSC_VER_15A = b'\x00'
IPSC_VER_16 = b'\x01'
IPSC_VER_17 = b'\x02'
IPSC_VER_18 = b'\x02'
IPSC_VER_19 = b'\x03'
IPSC_VER_22 = b'\x04'
# Link Type Values - assumed that cap+, etc. are different, this is all I can confirm
LINK_TYPE_IPSC = b'\x04'
# IPSC Version and Link Type are Used for a 4-byte version field in registration packets
IPSC_VER = LINK_TYPE_IPSC + IPSC_VER_19 + LINK_TYPE_IPSC + IPSC_VER_17

137
list.py
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@ -1,137 +0,0 @@
import socket
import binascii
import hmac
import hashlib
# Data structure for holding IPSC information
NETWORK = {
'IPSC1': {
'LOCAL': {
'DESCRIPTION': 'K0USY Lecompton, KS - Master',
'MODE': b'\x6A',
'PORT': 50001,
'RADIO_ID': binascii.unhexlify('00000001'),
'AUTH_KEY': binascii.unhexlify('0000000000000000000000000000000000012345')
},
'MASTER': {
'IP': '24.143.49.121',
'MODE': b'\x6A',
'PORT': 50000,
'RADIO_ID': '',
},
'PEERS': [ # each list entry will be a dictionary for IP, RADIO ID and PORT
#{'IP': '100.200.1.1', 'PORT': 50000, 'RADIO_ID': b'\x00\x00\x00\xFF'},
]
}
}
# Known IPSC Message Types
RDAC_CTL = b'\x70'
GROUP_VOICE = b'\x80'
GROUP_DATA = b'\x83'
PVT_DATA = b'\x84'
REG_REQ = b'\x90'
REG_REPLY = b'\x91'
PEER_LIST_REQ = b'\x92'
PEER_LIST_REPLY = b'\x93'
PEER_KEEP_ALIVE_REQ = b'\x94'
PEER_KEEP_ALIVE_REPLY = b'\x95'
KEEP_ALIVE_REQ = b'\x96'
KEEP_ALIVE_REPLY = b'\x97'
# IPSC information
IPSC_TS_BOTH = b'\x6A' # Both Timeslots IPSC enabled
IPSC_OP_VER = b'\x04\x03' # 0x04, 0x03 -- seems to be current version of IPSC
IPSC_OLD_VER = b'\x04\x00' # 0x04, 0x02 -- oldest version of IPSC suppoerted
IPSC_FLAGS = b'\x00\x00\x80\xDC' # Just accept this... it works, we know some of the pieces
#********** FUNCTIONS THAT WE WILL USE
# function to send a payload to a defined socket
def send_auth_packet (_dest_addr, _dest_port, _socket, _data, _key):
_hash = binascii.unhexlify((hmac.new(_key,_data,hashlib.sha1)).hexdigest()[:20])
print("==> Sending Authenticated Packet")
print(" Destination IP:", _dest_addr)
print(" Destination UDP Port:", _dest_port)
print(" Raw Packet:", binascii.b2a_hex(_data + _hash))
_socket.sendto((_data+_hash), (_dest_addr, _dest_port))
return
# Note: This function ignores authentiation information!!!
def receive_packet(_socket):
_data = (_socket.recv(1024))
_peer_id = str(int(binascii.b2a_hex(_data[2:5]), 16))
_mode = binascii.b2a_hex(_data[5:6])
print('<== Response Recieved from Radio ID:', _peer_id)
print(' Raw Packet:', binascii.b2a_hex(_data))
# Parse returned information
_packettype = (_data[0:1])
_sock = 'IPSC1'
if (_packettype == REG_REQ):
print(" >> This is a registration packet")
elif (_packettype == REG_REPLY):
print(" >> This is a registration reply packet")
elif (_packettype == PEER_LIST_REPLY):
print(">> This packet is a peer list from the master")
_num_peers = int(str(int(binascii.b2a_hex(_data[5:7]), 16))[1:])
# print('>>There are', binascii.b2a_hex(_data[5:7]), 'peers in this IPSC (RAW)')
print('>> There are', _num_peers, 'peers in this IPSC')
for i in range(7, (_num_peers*11)+7, 11):
NETWORK[_sock]['PEERS'].append({
'RADIO_ID': binascii.b2a_hex(_data[i:i+4]),
'IP': binascii.b2a_hex(_data[i+4:i+8]),
'PORT': binascii.b2a_hex(_data[i+8:i+10]),
'MODE': binascii.b2a_hex(_data[i+10:i+11])
})
print_peer_list('IPSC1')
return _data, _packettype
def print_peer_list(_ipsc_network):
print(NETWORK[_ipsc_network]['LOCAL']['DESCRIPTION'])
for dictionary in NETWORK[_ipsc_network]['PEERS']:
hex_address = dictionary['IP']
hex_port = dictionary['PORT']
hex_radio_id = dictionary['RADIO_ID']
hex_mode = dictionary['MODE']
address = [int(hex_address[0:2], 16), int(hex_address[2:4], 16), int(hex_address[4:6], 16), int(hex_address[6:8], 16)]
port = int(hex_port, 16)
radio_id = int(hex_radio_id, 16)
print(address[0],".",address[1],".",address[2],".",address[3],"\t", sep='', end='')
print(port, radio_id, hex_mode, sep='\t')
return
#********** THE ACTUAL MEAT
# Create a socket to conetact IPSC Network #1
ipsc1_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
ipsc1_sock.bind(('', NETWORK['IPSC1']['LOCAL']['PORT']))
ipsc1_sock.setblocking(0)
ipsc1_sock.settimeout(60)
CTL_SUFFIX = (IPSC_TS_BOTH + IPSC_FLAGS + IPSC_OP_VER + IPSC_OLD_VER)
REG_REQ_PACKET = (REG_REQ + NETWORK['IPSC1']['LOCAL']['RADIO_ID'] + CTL_SUFFIX)
KEEP_ALIVE_PACKET = (KEEP_ALIVE_REQ + NETWORK['IPSC1']['LOCAL']['RADIO_ID'] + CTL_SUFFIX)
PEER_LIST_REQ_PACKET = (PEER_LIST_REQ + NETWORK['IPSC1']['LOCAL']['RADIO_ID'])
# Send registration packet
send_auth_packet(NETWORK['IPSC1']['MASTER']['IP'], NETWORK['IPSC1']['MASTER']['PORT'], ipsc1_sock, REG_REQ_PACKET, NETWORK['IPSC1']['LOCAL']['AUTH_KEY'])
receive_packet(ipsc1_sock)
# Send keep alive packet
send_auth_packet(NETWORK['IPSC1']['MASTER']['IP'], NETWORK['IPSC1']['MASTER']['PORT'], ipsc1_sock, KEEP_ALIVE_PACKET, NETWORK['IPSC1']['LOCAL']['AUTH_KEY'])
receive_packet(ipsc1_sock)
# Request peer list from master
send_auth_packet(NETWORK['IPSC1']['MASTER']['IP'], NETWORK['IPSC1']['MASTER']['PORT'], ipsc1_sock, PEER_LIST_REQ_PACKET, NETWORK['IPSC1']['LOCAL']['AUTH_KEY'])
receive_packet(ipsc1_sock)
ipsc1_sock.close