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Merge ambe_audio_2way into master

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This commit is contained in:
Mike Zingman 2016-07-10 09:53:36 -04:00
parent f367602237
commit b47fd15155
5 changed files with 597 additions and 112 deletions
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60
ambe_audio.cfg
View File

@ -1,9 +1,53 @@
[SETTINGS]
_debug = False
_outToFile = False
_outToUDP = True
_gateway = 127.0.0.1
_gateway_port = 1234
_remote_control_port = 1235
_tg_filter = 2,3,13,3174,3777215,3100,9,9998,3112
################################################
# ambe_audio configuration file.
################################################
# DEFAULTS - General settings. These values are
#inherited in each subsequent section (defined by section value).
[DEFAULTS]
debug = False # Debug output for each VOICE frame
outToFile = False # Write each AMBE frame to a file called ambe.bin
outToUDP = True # Send each AMBE frame to the _sock object (turn on/off DMRGateway operation)
gateway = 127.0.0.1 # IP address of DMRGateway app
toGatewayPort = 31000 # Port DMRGateway is listening on for AMBE frames to decode
remoteControlPort = 31002 # Port that ambe_audio is listening on for remote control commands
fromGatewayPort = 31003 # Port to listen on for AMBE frames to transmit to all peers
gatewayDmrId = 0 # id to use when transmitting from the gateway
tgFilter = 9 # A list of TG IDs to monitor. All TGs will be passed to DMRGateway
txTg = 9 # TG to use for all frames received from DMRGateway -> IPSC
txTs = 2 # Slot to use for frames received from DMRGateway -> IPSC
#
# The section setting defines the current section to use. By default, the ‘ENABLED’ section in dmrlink.cfg is used.
# Any values in the named section override the values from the DEFAULTS section. For example, if the BM section
# has a value for gatewayDmrId it would override the value above. Only one section should be set here. Think
# of this as an easy way to switch between several different configurations with a single line.
#
#section = BM # Use BM section values
#section = Sandbox # Use SANDBOX section values
[BM] # BrandMeister
tgFilter = 3100,31094 # A list of TG IDs to monitor. All TGs will be passed to DMRGateway
txTg = 3100 # TG to use for all frames received from DMRGateway -> IPSC
txTs = 2 # Slot to use for frames received from DMRGateway -> IPSC
[BM2] # Alternate BM configuration
tgFilter = 31094
txTg = 31094
txTs = 2
[Sandbox] # DMR MARC sandbox network
tgFilter = 3120
txTg = 3120
txTs = 2
[Sandbox2] # DMR MARC sandbox network
tgFilter = 1
txTg = 1
txTs = 1
[N4IRS] # N4IRS/INAD network
tgFilter = 1,2,3,13,3174,3777215,3100,9,9998,3112,3136,310,311,312,9997
txTg = 9998
txTs = 2

544
ambe_audio.py
View File

@ -16,10 +16,11 @@ from bitstring import BitArray
import sys, socket, ConfigParser, thread, traceback
import cPickle as pickle
from dmrlink import IPSC, NETWORK, networks, logger, int_id, hex_str_3, get_info, talkgroup_ids, subscriber_ids, peer_ids, PATH
from time import time
from dmrlink import IPSC, NETWORK, networks, logger, int_id, hex_str_3, hex_str_4, get_info, talkgroup_ids, peer_ids, PATH, get_subscriber_info, reread_subscribers
from time import time, sleep, clock, localtime, strftime
import csv
import struct
from random import randint
__author__ = 'Cortney T. Buffington, N0MJS'
__copyright__ = 'Copyright (c) 2013 - 2016 Cortney T. Buffington, N0MJS and the K0USY Group'
@ -35,55 +36,84 @@ try:
except ImportError:
sys.exit('IPSC message types file not found or invalid')
try:
from ipsc.ipsc_mask import *
except ImportError:
sys.exit('IPSC mask values file not found or invalid')
#
# ambeIPSC class,
#
class ambeIPSC(IPSC):
_configFile='ambe_audio.cfg'
_debug = False
_outToFile = False
_outToUDP = True
_configFile='ambe_audio.cfg' # Name of the config file to over-ride these default values
_debug = False # Debug output for each VOICE frame
_outToFile = False # Write each AMBE frame to a file called ambe.bin
_outToUDP = True # Send each AMBE frame to the _sock object (turn on/off DMRGateway operation)
#_gateway = "192.168.1.184"
_gateway = "127.0.0.1"
_gateway_port = 1234
_remote_control_port = 1235
_gateway = "127.0.0.1" # IP address of DMRGateway app
_gateway_port = 31000 # Port DMRGateway is listening on for AMBE frames to decode
_remote_control_port = 31002 # Port that ambe_audio is listening on for remote control commands
_ambeRxPort = 31003 # Port to listen on for AMBE frames to transmit to all peers
_gateway_dmr_id = 0 # id to use when transmitting from the gateway
_tg_filter = [2,3,13,3174,3777215,3100,9,9998,3112] #set this to the tg to monitor
_no_tg = -99
_sock = -1;
lastPacketTimeout = 0
_transmitStartTime = 0
_no_tg = -99 # Flag (const) that defines a value for "no tg is currently active"
_busy_slots = [0,0,0] # Keep track of activity on each slot. Make sure app is polite
_sock = -1; # Socket object to send AMBE to DMRGateway
lastPacketTimeout = 0 # Time of last packet. Used to trigger an artifical TERM if one was not seen
_transmitStartTime = 0 # Used for info on transmission duration
_start_seq = 0 # Used to maintain error statistics for a transmission
_packet_count = 0 # Used to maintain error statistics for a transmission
_seq = 0 # Transmit frame sequence number (auto-increments for each frame)
_f = None # File handle for debug AMBE binary output
_tx_tg = hex_str_3(9998) # Hard code the destination TG. This ensures traffic will not show up on DMR-MARC
_tx_ts = 2 # Time Slot 2
_currentNetwork = ""
_dmrgui = ''
###### DEBUGDEBUGDEBUG
#_d = None
###### DEBUGDEBUGDEBUG
def __init__(self, *args, **kwargs):
IPSC.__init__(self, *args, **kwargs)
self.CALL_DATA = []
#
# Define default values for operation. These will be overridden by the .cfg file if found
#
self._currentTG = self._no_tg
self._sequenceNr = 0
self.readConfigFile(self._configFile)
self._currentNetwork = str(args[0])
self.readConfigFile(self._configFile, None, self._currentNetwork)
print('DMRLink ambe server')
logger.info('DMRLink ambe server')
if self._gateway_dmr_id == 0:
sys.exit( "Error: gatewayDmrId must be set (greater than zero)" )
#
# Open output sincs
#
if self._outToFile == True:
f = open('ambe.bin', 'wb')
print('Opening output file: ambe.bin')
self._f = open('ambe.bin', 'wb')
logger.info('Opening output file: ambe.bin')
if self._outToUDP == True:
self._sock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
print('Send UDP frames to DMR gateway {}:{}'.format(self._gateway, self._gateway_port))
logger.info('Send UDP frames to DMR gateway {}:{}'.format(self._gateway, self._gateway_port))
###### DEBUGDEBUGDEBUG
#self._d = open('recordData.bin', 'wb')
###### DEBUGDEBUGDEBUG
try:
thread.start_new_thread( self.remote_control, (self._remote_control_port, ) )
thread.start_new_thread( self.remote_control, (self._remote_control_port, ) ) # Listen for remote control commands
thread.start_new_thread( self.launchUDP, (args[0], ) ) # Package AMBE into IPSC frames and send to all peers
except:
traceback.print_exc()
print( "Error: unable to start thread" )
logger.error( "Error: unable to start thread" )
# Utility function to convert bytes to string of hex values (for debug)
def ByteToHex( self, byteStr ):
@ -92,33 +122,264 @@ class ambeIPSC(IPSC):
#
# Now read the configuration file and parse out the values we need
#
def readConfigFile(self, configFileName):
def defaultOption( self, config, sec, opt, defaultValue ):
try:
_value = config.get(sec, opt).split(None)[0] # Get the value from the named section
except ConfigParser.NoOptionError as e:
try:
_value = config.get('DEFAULTS', opt).split(None)[0] # Try the global DEFAULTS section
except ConfigParser.NoOptionError as e:
_value = defaultValue # Not found anywhere, use the default value
logger.info(opt + ' = ' + str(_value))
return _value
def readConfigFile(self, configFileName, sec, networkName='DEFAULTS'):
config = ConfigParser.ConfigParser()
try:
self._tg_filter=[]
config.read(configFileName)
for sec in config.sections():
for key, val in config.items(sec):
if self._debug == True:
print( '%s="%s"' % (key, val) )
self._debug = (config.get(sec, '_debug') == "True")
self._outToFile = (config.get(sec, '_outToFile') == "True")
self._outToUDP = (config.get(sec, '_outToUDP') == "True")
self._gateway = config.get(sec, '_gateway')
self._gateway_port = int(config.get(sec, '_gateway_port'))
_tgs = config.get(sec, '_tg_filter')
self._tg_filter = map(int, _tgs.split(','))
if sec == None:
sec = self.defaultOption(config, 'DEFAULTS', 'section', networkName)
if config.has_section(sec) == False:
logger.error('Section ' + sec + ' was not found, using DEFAULTS')
sec = 'DEFAULTS'
self._debug = bool(self.defaultOption(config, sec,'debug', self._debug) == 'True')
self._outToFile = bool(self.defaultOption(config, sec,'outToFile', self._outToFile) == 'True')
self._outToUDP = bool(self.defaultOption(config, sec,'outToUDP', self._outToUDP) == 'True')
self._gateway = self.defaultOption(config, sec,'gateway', self._gateway)
self._gateway_port = int(self.defaultOption(config, sec,'toGatewayPort', self._gateway_port))
self._remote_control_port = int(self.defaultOption(config, sec,'remoteControlPort', self._remote_control_port))
self._ambeRxPort = int(self.defaultOption(config, sec,'fromGatewayPort', self._ambeRxPort))
self._gateway_dmr_id = int(self.defaultOption(config, sec, 'gatewayDmrId', self._gateway_dmr_id))
_tgs = self.defaultOption(config, sec,'tgFilter', str(self._tg_filter).strip('[]'))
self._tg_filter = map(int, _tgs.split(','))
self._tx_tg = hex_str_3(int(self.defaultOption(config, sec, 'txTg', int_id(self._tx_tg))))
self._tx_ts = int(self.defaultOption(config, sec, 'txTs', self._tx_ts))
except ConfigParser.NoOptionError as e:
print('Using a default value:', e)
except:
traceback.print_exc()
sys.exit('Configuration file \''+configFileName+'\' is not a valid configuration file! Exiting...')
def rewriteFrame( self, _frame, _network, _newSlot, _newGroup, _newSouceID, _newPeerID ):
_peerid = _frame[1:5] # int32 peer who is sending us a packet
_src_sub = _frame[6:9] # int32 Id of source
_burst_data_type = _frame[30]
########################################################################
# re-Write the peer radio ID to that of this program
_frame = _frame.replace(_peerid, _newPeerID)
# re-Write the source subscriber ID to that of this program
_frame = _frame.replace(_src_sub, _newSouceID)
# Re-Write the destination Group ID
_frame = _frame.replace(_frame[9:12], _newGroup)
# Re-Write IPSC timeslot value
_call_info = int_id(_frame[17:18])
if _newSlot == 1:
_call_info &= ~(1 << 5)
elif _newSlot == 2:
_call_info |= 1 << 5
_call_info = chr(_call_info)
_frame = _frame[:17] + _call_info + _frame[18:]
_x = struct.pack("i", self._seq)
_frame = _frame[:20] + _x[1] + _x[0] + _frame[22:]
self._seq = self._seq + 1
# Re-Write DMR timeslot value
# Determine if the slot is present, so we can translate if need be
if _burst_data_type == BURST_DATA_TYPE['SLOT1_VOICE'] or _burst_data_type == BURST_DATA_TYPE['SLOT2_VOICE']:
# Re-Write timeslot if necessary...
if _newSlot == 1:
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
elif _newSlot == 2:
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
_frame = _frame[:30] + _burst_data_type + _frame[31:]
_frame = self.hashed_packet(NETWORK[_network]['LOCAL']['AUTH_KEY'], _frame)
if (time() - self._busy_slots[_newSlot]) >= 0.10 : # slot is not busy so it is safe to transmit
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_frame)
else:
logger.info('Slot {} is busy, will not transmit packet from gateway'.format(_newSlot))
########################################################################
# Read a record from the captured IPSC file looking for a payload type that matches the filter
def readRecord(self, _file, _match_type):
_notEOF = True
# _file.seek(0)
while (_notEOF):
_data = ""
_bLen = _file.read(4)
if _bLen:
_len, = struct.unpack("i", _bLen)
if _len > 0:
_data = _file.read(_len)
_payload_type = _data[30]
if _payload_type == _match_type:
return _data
else:
_notEOF = False
else:
_notEOF = False
return _data
# Read bytes from the socket with "timeout" I hate this code.
def readSock( self, _sock, len ):
counter = 0
while(counter < 3):
_ambe = _sock.recv(len)
if _ambe: break
sleep(0.1)
counter = counter + 1
return _ambe
# Concatenate 3 frames from the stream into a bit array and return the bytes
def readAmbeFrameFromUDP( self, _sock ):
_ambeAll = BitArray() # Start with an empty array
for i in range(0, 3):
_ambe = self.readSock(_sock,7) # Read AMBE from the socket
if _ambe:
_ambe1 = BitArray('0x'+h(_ambe[0:49]))
_ambeAll += _ambe1[0:50] # Append the 49 bits to the string
else:
break
return _ambeAll.tobytes() # Return the 49 * 3 as an array of bytes
# Set up the socket and run the method to gather the AMBE. Sending it to all peers
def launchUDP(self, _network):
s = socket.socket() # Create a socket object
s.bind(('', self._ambeRxPort)) # Bind to the port
while (1): # Forever!
s.listen(5) # Now wait for client connection.
_sock, addr = s.accept() # Establish connection with client.
if int_id(self._tx_tg) > 0: # Test if we are allowed to transmit
self.playbackFromUDP(_sock, _network)
else:
self.transmitDisabled(_sock, _network) #tg is zero, so just eat the network trafic
_sock.close()
# This represents a full transmission (HEAD, VOICE and TERM)
def playbackFromUDP(self, _sock, _network):
_delay = 0.055 # Yes, I know it should be 0.06, but there seems to be some latency, so this is a hack
_src_sub = hex_str_3(self._gateway_dmr_id) # DMR ID to sign this transmission with
_src_peer = NETWORK[_network]['LOCAL']['RADIO_ID'] # Use this peers ID as the source repeater
logger.info('Transmit from gateway to TG {}:'.format(int_id(self._tx_tg)) )
try:
try:
_t = open('template.bin', 'rb') # Open the template file. This was recorded OTA
_tempHead = [0] * 3 # It appears that there 3 frames of HEAD (mostly the same)
for i in range(0, 3):
_tempHead[i] = self.readRecord(_t, BURST_DATA_TYPE['VOICE_HEAD'])
_tempVoice = [0] * 6
for i in range(0, 6): # Then there are 6 frames of AMBE. We will just use them in order
_tempVoice[i] = self.readRecord(_t, BURST_DATA_TYPE['SLOT2_VOICE'])
_tempTerm = self.readRecord(_t, BURST_DATA_TYPE['VOICE_TERM'])
_t.close()
except IOError:
logger.error('Can not open template.bin file')
return
logger.debug('IPSC templates loaded')
_eof = False
self._seq = randint(0,32767) # A transmission uses a random number to begin its sequence (16 bit)
for i in range(0, 3): # Output the 3 HEAD frames to our peers
self.rewriteFrame(_tempHead[i], _network, self._tx_ts, self._tx_tg, _src_sub, _src_peer)
#self.group_voice(_network, _src_sub, self._tx_tg, True, '', hex_str_3(0), _tempHead[i])
sleep(_delay)
i = 0 # Initialize the VOICE template index
while(_eof == False):
_ambe = self.readAmbeFrameFromUDP(_sock) # Read the 49*3 bit sample from the stream
if _ambe:
i = (i + 1) % 6 # Round robbin with the 6 VOICE templates
_frame = _tempVoice[i][:33] + _ambe + _tempVoice[i][52:] # Insert the 3 49 bit AMBE frames
self.rewriteFrame(_frame, _network, self._tx_ts, self._tx_tg, _src_sub, _src_peer)
#self.group_voice(_network, _src_sub, self._tx_tg, True, '', hex_str_3(0), _frame)
sleep(_delay) # Since this comes from a file we have to add delay between IPSC frames
else:
_eof = True # There are no more AMBE frames, so terminate the loop
self.rewriteFrame(_tempTerm, _network, self._tx_ts, self._tx_tg, _src_sub, _src_peer)
#self.group_voice(_network, _src_sub, self._tx_tg, True, '', hex_str_3(0), _tempTerm)
except IOError:
logger.error('Can not transmit to peers')
logger.info('Transmit complete')
def transmitDisabled(self, _sock, _network):
_eof = False
logger.debug('Transmit disabled begin')
while(_eof == False):
if self.readAmbeFrameFromUDP(_sock):
pass
else:
_eof = True # There are no more AMBE frames, so terminate the loop
logger.debug('Transmit disabled end')
# Debug method used to test the AMBE code.
def playbackFromFile(self, _fileName):
_r = open(_fileName, 'rb')
_eof = False
host = socket.gethostbyname(socket.gethostname()) # Get local machine name
_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
_sock.connect((host, self._ambeRxPort))
while(_eof == False):
for i in range(0, 3):
_ambe = _r.read(7)
if _ambe:
_sock.send(_ambe)
else:
_eof = True
sleep(0.055)
logger.info('File playback complete')
def dumpTemplate(self, _fileName):
_file = open(_fileName, 'rb')
_eof = False
while(_eof == False):
_data = ""
_bLen = _file.read(4)
if _bLen:
_len, = struct.unpack("i", _bLen)
if _len > 0:
_data = _file.read(_len)
self.dumpIPSCFrame(_data)
else:
_eof = True
logger.info('File dump complete')
#************************************************
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
#************************************************
#
def group_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
#self.dumpIPSCFrame(_data)
# THIS FUNCTION IS NOT COMPLETE!!!!
_payload_type = _data[30:31]
# _ambe_frames = _data[33:52]
@ -128,91 +389,222 @@ class ambeIPSC(IPSC):
_ambe_frame3 = _ambe_frames[100:149]
_tg_id = int_id(_dst_sub)
_ts = 2 if _ts else 1
self._busy_slots[_ts] = time()
###### DEBUGDEBUGDEBUG
# if _tg_id == 2:
# __iLen = len(_data)
# self._d.write(struct.pack("i", __iLen))
# self._d.write(_data)
# else:
# self.rewriteFrame(_data, _network, 1, 9)
###### DEBUGDEBUGDEBUG
if _tg_id in self._tg_filter: #All TGs
_dst_sub = get_info(int_id(_dst_sub), talkgroup_ids)
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
if self._currentTG == self._no_tg:
_src_sub = get_info(int_id(_src_sub), subscriber_ids)
print('Voice Transmission Start on TS {} and TG {} ({}) from {}'.format("2" if _ts else "1", _dst_sub, _tg_id, _src_sub))
_src_sub = get_subscriber_info(_src_sub)
logger.info('Voice Transmission Start on TS {} and TG {} ({}) from {}'.format(_ts, _dst_sub, _tg_id, _src_sub))
self._sock.sendto('reply log2 {} {}'.format(_src_sub, _tg_id), (self._dmrgui, 34003))
self._currentTG = _tg_id
self._transmitStartTime = time()
self._start_seq = int_id(_data[20:22])
self._packet_count = 0
else:
if self._currentTG != _tg_id:
if time() > self.lastPacketTimeout:
self._currentTG = self._no_tg #looks like we never saw an EOT from the last stream
print('EOT timeout')
logger.warning('EOT timeout')
else:
print('Transmission in progress, will not decode stream on TG {}'.format(_tg_id))
logger.warning('Transmission in progress, will not decode stream on TG {}'.format(_tg_id))
if self._currentTG == _tg_id:
if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
print('Voice Transmission End %.2f seconds' % (time() - self._transmitStartTime))
_source_packets = ( int_id(_data[20:22]) - self._start_seq ) - 3 # the 3 is because the start and end are not part of the voice but counted in the RTP
if self._packet_count > _source_packets:
self._packet_count = _source_packets
if _source_packets > 0:
_lost_percentage = 100.0 - ((self._packet_count / float(_source_packets)) * 100.0)
else:
_lost_percentage = 0.0
_duration = (time() - self._transmitStartTime)
logger.info('Voice Transmission End {:.2f} seconds loss rate: {:.2f}% ({}/{})'.format(_duration, _lost_percentage, _source_packets - self._packet_count, _source_packets))
self._sock.sendto("reply log" +
strftime(" %m/%d/%y %H:%M:%S", localtime(self._transmitStartTime)) +
' {} {} "{}"'.format(get_subscriber_info(_src_sub), _ts, _dst_sub) +
' {:.2f}%'.format(_lost_percentage) +
' {:.2f}s'.format(_duration), (self._dmrgui, 34003))
self._currentTG = self._no_tg
if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
self.outputFrames(_ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3)
self._packet_count += 1
if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
self.outputFrames(_ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3)
self._packet_count += 1
self.lastPacketTimeout = time() + 10
else:
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
_dst_sub = get_info(int_id(_dst_sub), talkgroup_ids)
print('Ignored Voice Transmission Start on TS {} and TG {}'.format("2" if _ts else "1", _dst_sub))
logger.warning('Ignored Voice Transmission Start on TS {} and TG {}'.format(_ts, _dst_sub))
def outputFrames(self, _ambe_frames, _ambe_frame1, _ambe_frame2, _ambe_frame3):
if self._debug == True:
print(_ambe_frames)
print('Frame 1:', self.ByteToHex(_ambe_frame1.tobytes()))
print('Frame 2:', self.ByteToHex(_ambe_frame2.tobytes()))
print('Frame 3:', self.ByteToHex(_ambe_frame3.tobytes()))
logger.debug(_ambe_frames)
logger.debug('Frame 1:', self.ByteToHex(_ambe_frame1.tobytes()))
logger.debug('Frame 2:', self.ByteToHex(_ambe_frame2.tobytes()))
logger.debug('Frame 3:', self.ByteToHex(_ambe_frame3.tobytes()))
if self._outToFile == True:
f.write( _ambe_frame1.tobytes() )
f.write( _ambe_frame2.tobytes() )
f.write( _ambe_frame3.tobytes() )
self._f.write( _ambe_frame1.tobytes() )
self._f.write( _ambe_frame2.tobytes() )
self._f.write( _ambe_frame3.tobytes() )
if self._outToUDP == True:
self._sock.sendto(_ambe_frame1.tobytes(), (self._gateway, self._gateway_port))
self._sock.sendto(_ambe_frame2.tobytes(), (self._gateway, self._gateway_port))
self._sock.sendto(_ambe_frame3.tobytes(), (self._gateway, self._gateway_port))
def reread_subscribers(self):
try:
with open(PATH+'subscriber_ids.csv', 'rU') as subscriber_ids_csv:
subscribers = csv.reader(subscriber_ids_csv, dialect='excel', delimiter=',')
subscriber_ids = {}
for row in subscribers:
subscriber_ids[int(row[0])] = (row[1])
print('Subscriber file has been updated')
except ImportError:
logger.warning('subscriber_ids.csv not found: Subscriber aliases will not be available')
def private_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
print('private voice')
# __iLen = len(_data)
# self._d.write(struct.pack("i", __iLen))
# self._d.write(_data)
#
# Define a function for the thread
# Use netcat to dynamically change the TGs that are forwarded to Allstar
# echo -n "x,y,z" | nc 127.0.0.1 1235
# Remote control thread
# Use netcat to dynamically change ambe_audio without a restart
# echo -n "tgs=x,y,z" | nc 127.0.0.1 31002
# echo -n "reread_subscribers" | nc 127.0.0.1 31002
# echo -n "reread_config" | nc 127.0.0.1 31002
# echo -n "txTg=##" | nc 127.0.0.1 31002
# echo -n "txTs=#" | nc 127.0.0.1 31002
# echo -n "section=XX" | nc 127.0.0.1 31002
#
def remote_control(self, port):
s = socket.socket() # Create a socket object
host = socket.gethostname() # Get local machine name
s.bind((host, port)) # Bind to the port
s.bind(('', port)) # Bind to the port
s.listen(5) # Now wait for client connection.
print('Remote control is listening on:', host, port)
logger.info('Remote control is listening on {}:{}'.format(socket.getfqdn(), port))
while True:
c, addr = s.accept() # Establish connection with client.
print( 'Got connection from', addr )
tgs = c.recv(1024)
print('Command:"{}"'.format(tgs))
if tgs:
if tgs == 'reread_subscribers':
self.reread_subscribers()
logger.info( 'Got connection from {}'.format(addr) )
self._dmrgui = addr[0]
_tmp = c.recv(1024)
_tmp = _tmp.split(None)[0] #first get rid of whitespace
_cmd = _tmp.split('=')[0]
logger.info('Command:"{}"'.format(_cmd))
if _cmd:
if _cmd == 'reread_subscribers':
reread_subscribers()
elif _cmd == 'reread_config':
self.readConfigFile(self._configFile, None, self._currentNetwork)
elif _cmd == 'txTg':
self._tx_tg = hex_str_3(int(_tmp.split('=')[1]))
print('New txTg = ' + str(int_id(self._tx_tg)))
elif _cmd == 'txTs':
self._tx_ts = int(_tmp.split('=')[1])
print('New txTs = ' + str(self._tx_ts))
elif _cmd == 'section':
self.readConfigFile(self._configFile, _tmp.split('=')[1])
elif _cmd == 'gateway_dmr_id':
self._gateway_dmr_id = int(_tmp.split('=')[1])
print('New gateway_dmr_id = ' + str(self._gateway_dmr_id))
elif _cmd == 'gateway_peer_id':
peerID = int(_tmp.split('=')[1])
NETWORK[_network]['LOCAL']['RADIO_ID'] = hex_str_3(peerID)
print('New peer_id = ' + str(peerID))
elif _cmd == 'restart':
reactor.callFromThread(reactor.stop)
elif _cmd == 'playbackFromFile':
self.playbackFromFile('ambe.bin')
elif _cmd == 'tgs':
_args = _tmp.split('=')[1]
self._tg_filter = map(int, _args.split(','))
logger.info( 'New TGs={}'.format(self._tg_filter) )
elif _cmd == 'dump_template':
self.dumpTemplate('PrivateVoice.bin')
elif _cmd == 'get_info':
self._sock.sendto('reply dmr_info {} {} {} {}'.format(self._currentNetwork,
int_id(NETWORK[self._currentNetwork]['LOCAL']['RADIO_ID']),
self._gateway_dmr_id,
get_subscriber_info(hex_str_3(self._gateway_dmr_id))), (self._dmrgui, 34003))
elif _cmd == 'eval':
_sz = len(_tmp)-5
_evalExpression = _tmp[-_sz:]
_evalResult = eval(_evalExpression)
print("eval of {} is {}".format(_evalExpression, _evalResult))
self._sock.sendto('reply eval {}'.format(_evalResult), (self._dmrgui, 34003))
elif _cmd == 'exec':
_sz = len(_tmp)-5
_evalExpression = _tmp[-_sz:]
exec(_evalExpression)
print("exec of {}".format(_evalExpression))
else:
self._tg_filter = map(int, tgs.split(','))
print( 'New TGs=', self._tg_filter )
logger.error('Unknown command')
c.close() # Close the connection
#************************************************
# Debug: print IPSC frame on console
#************************************************
def dumpIPSCFrame( self, _frame ):
_packettype = int_id(_frame[0:1]) # int8 GROUP_VOICE, PVT_VOICE, GROUP_DATA, PVT_DATA, CALL_MON_STATUS, CALL_MON_RPT, CALL_MON_NACK, XCMP_XNL, RPT_WAKE_UP, DE_REG_REQ
_peerid = int_id(_frame[1:5]) # int32 peer who is sending us a packet
_ipsc_seq = int_id(_frame[5:6]) # int8 looks like a sequence number for a packet
_src_sub = int_id(_frame[6:9]) # int32 Id of source
_dst_sub = int_id(_frame[9:12]) # int32 Id of destination
_call_type = int_id(_frame[12:13]) # int8 Priority Voice/Data
_call_ctrl_info = int_id(_frame[13:17]) # int32
_call_info = int_id(_frame[17:18]) # int8 Bits 6 and 7 defined as TS and END
# parse out the RTP values
_rtp_byte_1 = int_id(_frame[18:19]) # Call Ctrl Src
_rtp_byte_2 = int_id(_frame[19:20]) # Type
_rtp_seq = int_id(_frame[20:22]) # Call Seq No
_rtp_tmstmp = int_id(_frame[22:26]) # Timestamp
_rtp_ssid = int_id(_frame[26:30]) # Sync Src Id
_payload_type = _frame[30] # int8 VOICE_HEAD, VOICE_TERM, SLOT1_VOICE, SLOT2_VOICE
_ts = bool(_call_info & TS_CALL_MSK)
_end = bool(_call_info & END_MSK)
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
print('HEAD:', h(_frame))
if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
_ipsc_rssi_threshold_and_parity = int_id(_frame[31])
_ipsc_length_to_follow = int_id(_frame[32:34])
_ipsc_rssi_status = int_id(_frame[34])
_ipsc_slot_type_sync = int_id(_frame[35])
_ipsc_data_size = int_id(_frame[36:38])
_ipsc_data = _frame[38:38+(_ipsc_length_to_follow * 2)-4]
_ipsc_full_lc_byte1 = int_id(_frame[38])
_ipsc_full_lc_fid = int_id(_frame[39])
_ipsc_voice_pdu_service_options = int_id(_frame[40])
_ipsc_voice_pdu_dst = int_id(_frame[41:44])
_ipsc_voice_pdu_src = int_id(_frame[44:47])
print('{} {} {} {} {} {} {} {} {} {} {}'.format(_ipsc_rssi_threshold_and_parity,_ipsc_length_to_follow,_ipsc_rssi_status,_ipsc_slot_type_sync,_ipsc_data_size,h(_ipsc_data),_ipsc_full_lc_byte1,_ipsc_full_lc_fid,_ipsc_voice_pdu_service_options,_ipsc_voice_pdu_dst,_ipsc_voice_pdu_src))
print('TERM:', h(_frame))
if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
_rtp_len = _frame[31:32]
_ambe = _frame[33:52]
print('SLOT1:', h(_frame))
if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
_rtp_len = _frame[31:32]
_ambe = _frame[33:52]
print('SLOT2:', h(_frame))
print("pt={:02X} pid={} seq={:02X} src={} dst={} ct={:02X} uk={} ci={} rsq={}".format(_packettype, _peerid,_ipsc_seq, _src_sub,_dst_sub,_call_type,_call_ctrl_info,_call_info,_rtp_seq))
if __name__ == '__main__':
logger.info('DMRlink \'ambe_audio.py\' (c) 2015 N0MJS & the K0USY Group - SYSTEM STARTING...')
for ipsc_network in NETWORK:

31
ambe_audio_commands.txt Normal file
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@ -0,0 +1,31 @@
AllStar DTMF command examples:
82=cmd,/bin/bash -c 'do something here'
82=cmd,/bin/bash -c 'echo -n "section=Shutup" | nc 127.0.0.1 31002'
Shell command examples:
# Use netcat to dynamically change ambe_audio without a restart
# echo -n "tgs=x,y,z" | nc 127.0.0.1 31002
# echo -n "reread_subscribers" | nc 127.0.0.1 31002
# echo -n "reread_config" | nc 127.0.0.1 31002
# echo -n "txTg=##" | nc 127.0.0.1 31002
# echo -n "txTs=#" | nc 127.0.0.1 31002
# echo -n "section=XX" | nc 127.0.0.1 31002
Remote control commands:
'reread_subscribers'
'reread_config'
'txTg'
'txTs'
'section'
'gateway_dmr_id'
'gateway_peer_id'
'restart'
'playbackFromFile'
'tgs'
'dump_template'
'get_info'

74
dmrlink.py
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@ -289,30 +289,47 @@ subscriber_ids = {}
peer_ids = {}
talkgroup_ids = {}
try:
with open(PATH+'subscriber_ids.csv', 'rU') as subscriber_ids_csv:
subscribers = csv.reader(subscriber_ids_csv, dialect='excel', delimiter=',')
for row in subscribers:
subscriber_ids[int(row[0])] = (row[1])
except ImportError:
logger.warning('subscriber_ids.csv not found: Subscriber aliases will not be available')
def reread_peers():
global peer_ids
try:
with open(PATH+'peer_ids.csv', 'rU') as peer_ids_csv:
peers = csv.reader(peer_ids_csv, dialect='excel', delimiter=',')
peer_ids = {}
for row in peers:
peer_ids[int(row[0])] = (row[1])
except ImportError:
logger.warning('peer_ids.csv not found: Peer aliases will not be available')
try:
with open(PATH+'peer_ids.csv', 'rU') as peer_ids_csv:
peers = csv.reader(peer_ids_csv, dialect='excel', delimiter=',')
for row in peers:
peer_ids[int(row[0])] = (row[1])
except ImportError:
logger.warning('peer_ids.csv not found: Peer aliases will not be available')
def reread_talkgroups():
global talkgroup_ids
try:
with open(PATH+'talkgroup_ids.csv', 'rU') as talkgroup_ids_csv:
talkgroups = csv.reader(talkgroup_ids_csv, dialect='excel', delimiter=',')
talkgroup_ids = {}
for row in talkgroups:
talkgroup_ids[int(row[1])] = (row[0])
except ImportError:
logger.warning('talkgroup_ids.csv not found: Talkgroup aliases will not be available')
try:
with open(PATH+'talkgroup_ids.csv', 'rU') as talkgroup_ids_csv:
talkgroups = csv.reader(talkgroup_ids_csv, dialect='excel', delimiter=',')
for row in talkgroups:
talkgroup_ids[int(row[1])] = (row[0])
except ImportError:
logger.warning('talkgroup_ids.csv not found: Talkgroup aliases will not be available')
def reread_subscribers():
global subscriber_ids
try:
with open(PATH+'subscriber_ids.csv', 'rU') as subscriber_ids_csv:
subscribers = csv.reader(subscriber_ids_csv, dialect='excel', delimiter=',')
subscriber_ids = {}
for row in subscribers:
subscriber_ids[int(row[0])] = (row[1])
print('Subscriber file has been updated.', len(subscriber_ids), 'IDs imported')
except ImportError:
logger.warning('subscriber_ids.csv not found: Subscriber aliases will not be available')
reread_peers()
reread_talkgroups()
reread_subscribers()
def get_subscriber_info(_src_sub):
return get_info(int_id(_src_sub), subscriber_ids)
#************************************************
# UTILITY FUNCTIONS FOR INTERNAL USE
@ -449,8 +466,8 @@ def process_flags_bytes(_hex_flags):
'VOICE': _voice,
'MASTER': _master
}
# Take a received peer list and the network it belongs to, process and populate the
# data structure in my_ipsc_config with the results, and return a simple list of peers.
#
@ -601,7 +618,7 @@ if REPORTS['REPORT_NETWORKS'] == 'PICKLE':
file.close()
except IOError as detail:
logger.error('I/O Error: %s', detail)
elif REPORTS['REPORT_NETWORKS'] == 'PRINT':
def reporting_loop():
logger.debug('Periodic Reporting Loop Started (PRINT)')
@ -813,7 +830,7 @@ class IPSC(DatagramProtocol):
if _peerid in self._peers.keys():
self._peers[_peerid]['STATUS']['CONNECTED'] = True
logger.info('(%s) Registration Reply From: %s, %s:%s', self._network, int_id(_peerid), self._peers[_peerid]['IP'], self._peers[_peerid]['PORT'])
# OUR MASTER HAS ANSWERED OUR KEEP-ALIVE REQUEST - KEEP TRACK OF IT
def master_alive_reply(self, _peerid):
self.reset_keep_alive(_peerid)
@ -1117,14 +1134,15 @@ class IPSC(DatagramProtocol):
_packettype = data[0:1]
_peerid = data[1:5]
_ipsc_seq = data[5:6]
# AUTHENTICATE THE PACKET
if not self.validate_auth(self._local['AUTH_KEY'], data):
logger.warning('(%s) AuthError: IPSC packet failed authentication. Type %s: Peer: %s, %s:%s', self._network, h(_packettype), int_id(_peerid), host, port)
return
# return
# REMOVE SHA-1 AUTHENTICATION HASH: WE NO LONGER NEED IT
data = self.strip_hash(data)
else:
data = self.strip_hash(data)
# PACKETS THAT WE RECEIVE FROM ANY VALID PEER OR VALID MASTER
if _packettype in ANY_PEER_REQUIRED:

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