adsb-out/ADSB_Encoder.py
2019-09-15 15:17:51 +12:00

246 lines
14 KiB
Python
Executable File

#!/usr/bin/env python3
#
from HackRF import HackRF
from PPM import PPM
from ModeS import ModeS
from sys import argv, exit
import argparse
import configparser
import logging
import logging.config
import os
import csv
###############################################################
# Copyright (C) 2017 Linar Yusupov
# 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, see <http://www.gnu.org/licenses/>.
###############################################################
# Further work on fork
# Copyright (C) 2017 David Robinson
def auto_int(x):
"""Parses HEX into for argParser"""
return int(x, 0)
def auto_bool(x):
if x.lower() in ('yes', 'true', 't', 'y', '1'):
return True
elif x.lower() in ('no', 'false', 'f', 'n', '0'):
return False
else:
raise argparse.ArgumentTypeError('Boolean value expected.')
def argParser():
description = 'This tool will generate ADS-B data in a form that a hackRF can broadcast. In addition to providing the information at the command the defaults can be changed in the config.cfg file and the the logging config changed in logging.cfg.'
parser = argparse.ArgumentParser(description=description)
parser.add_argument('-i', '--icao', action='store', type=auto_int, dest='icao', default=cfg.get('plane', 'icao'), help='The ICAO number for the plane in hex. Ensure the ICAO is prefixed with \'0x\' to ensure this is parsed as a hex number. This is 24 bits long. Default: %(default)s')
parser.add_argument('--lat', '--latitude', action='store', type=float, dest='latitude', default=cfg.getfloat('plane', 'latitude'), help='Latitude for the plane in decimal degrees. Default: %(default)s')
parser.add_argument('--lon', '--long', '--longitude', action='store', type=float, dest='longitude', default=cfg.getfloat('plane', 'longitude'), help='Longitude for the place in decimal degrees. Default: %(default)s')
parser.add_argument('-a', '--alt', '--altitude', action='store', type=float, dest='altitude', default=cfg.getfloat('plane', 'altitude'), help='Altitude in decimal feet. 12 bits. Default: %(default)s')
parser.add_argument('--ca', '--capability', action='store', type=int, dest='capability', default=cfg.getint('plane', 'capability'), help='The capability. (Think this is always 5 from ADS-B messages. More info would be appreciated). 5 indicates that the responder is capable of Communication A and B, and the plane is not on the ground. 3 bits. Default: %(default)s')
parser.add_argument('--tc', '--typecode', action='store', type=int, dest='typecode', default=cfg.getint('plane', 'typecode'), help='The type for the ADS-B message. 11 is an air position message. See https://adsb-decode-guide.readthedocs.io/en/latest/content/introduction.html#ads-b-message-types for more information. 5 bits. Default: %(default)s')
parser.add_argument('--ss', '--surveillancestatus', action='store', type=int, dest='surveillancestatus', default=cfg.getint('plane', 'surveillancestatus'), help='The surveillance status. (Think this is always 0 from ADS-B messages. More info would be appreciated). Default: %(default)s')
parser.add_argument('--nicsb', '--nicsupplementb', action='store', type=int, dest='nicsupplementb', default=cfg.getint('plane', 'nicsupplementb'), help='The NIC supplement-B.(Think this is always 0 from ADS-B messages. More info would be appreciated). Default: %(default)s')
parser.add_argument('--time', action='store', type=int, dest='time', default=cfg.getint('plane', 'time'), help='0 indicates the time is not synchronous with UTC. Default: %(default)s')
parser.add_argument('-s', '--surface', action='store', default=cfg.getboolean('plane', 'surface'), type=auto_bool, dest='surface', help='If the plane is on the ground or not. Default: %(default)s')
parser.add_argument('-o', '--out', '--output', action='store', type=str, default=cfg.get('general', 'outputfilename'), dest='outputfilename', help='The iq8s output filename. This is the file which you will feed into the hackRF. Default: %(default)s')
parser.add_argument('-r', '--repeats', action='store', dest='repeats', type=int, default=cfg.getint('general', 'repeats'), help='How many repeats of the data to perform. Default: %(default)s')
parser.add_argument('--csv', '--csvfile', '--in', '--input', action='store', type=str, default=cfg.get('general', 'csvfile'), dest='csvfile', help='Import a CSV file with the plane data in it. Default: %(default)s')
parser.add_argument('--intermessagegap', action='store', type=int, default=cfg.get('general', 'intermessagegap'), dest='intermessagegap', help='When repeating or reading a CSV the number of microseconds between messages. Default: %(default)s')
parser.add_argument('--realtime', action='store', default=cfg.getboolean('general', 'realtime'), type=auto_bool, dest='realtime', help='When running a CSV which has a timestamp column whether to run in realtime following the timestamp or if just follow intermessagegap. If realtime is set it will override intermessagegap. Default: %(default)s')
parser.add_argument('--callsign', action='store', default=cfg.get('plane', 'callsign'), type=str, dest='callsign', help='The callsign of the aircraft. Is a max of 8 characters. Default: %(default)s')
# TODO Make it so it can do a static checksum or one/two bit error
# TODO Velocity, Heading and vertical speed as argument
return parser.parse_args()
def singlePlane(arguments):
logger.info('Processing default and command line options for a single plane')
logger.info('Repeating the message %s times' % (arguments.repeats))
samples = bytearray()
for i in range(0, arguments.repeats):
modes = ModeS()
(df17_pos_even, df17_pos_odd) = modes.df17_pos_rep_encode(arguments.capability, arguments.icao, arguments.typecode, arguments.surveillancestatus, arguments.nicsupplementb, arguments.altitude, arguments.time, arguments.latitude, arguments.longitude, arguments.surface)
df17_velocity = modes.vel_heading_encode(arguments.capability, arguments.icao, 450, 200, -1000)
df17_callsign = modes.callsign_encode(arguments.capability, arguments.icao, arguments.callsign)
ppm = PPM()
df17_array_position = ppm.frame_1090es_ppm_modulate(df17_pos_even, df17_pos_odd)
df17_array_velocity = ppm.frame_1090es_ppm_modulate(df17_velocity, df17_velocity)
df17_array_callsign = ppm.frame_1090es_ppm_modulate(df17_callsign, df17_callsign)
hackrf = HackRF()
#Position
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_position)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
#Velocity
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_velocity)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
#Callsign
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_callsign)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
return samples
def manyPlanes(arguments):
logger.info('Processing CSV file: %s' % (arguments.csvfile))
samples = bytearray()
logger.info('Repeating the message %s times' % (arguments.repeats))
prevtimestamp = 0
#TODO Callsign, speed, heading, vert speed in CSV
for i in range(0, arguments.repeats):
with open(arguments.csvfile, newline='') as csvfile:
reader = csv.DictReader(csvfile, delimiter=',')
for row in reader:
gap = arguments.intermessagegap
if not 'icao' in row.keys():
row['icao'] = arguments.icao
else:
row['icao'] = int(row['icao'], 0)
if not 'latitude' in row.keys():
row['latitude'] = arguments.latitude
else:
row['latitude'] = float(row['latitude'])
if not 'longitude' in row.keys():
row['longitude'] = arguments.longitude
else:
row['longitude'] = float(row['longitude'])
if not 'altitude' in row.keys():
row['altitude'] = arguments.altitude
else:
row['altitude'] = float(row['altitude'])
if not 'capability' in row.keys():
row['capability'] = arguments.capability
if not 'typecode' in row.keys():
row['typecode'] = arguments.typecode
if not 'surveillancestatus' in row.keys():
row['surveillancestatus'] = arguments.surveillancestatus
if not 'nicsupplementb' in row.keys():
row['nicsupplementb'] = arguments.nicsupplementb
if not 'time' in row.keys():
row['time'] = arguments.time
if not 'surface' in row.keys():
row['surface'] = arguments.surface
if 'timestamp' in row.keys():
if arguments.realtime:
gap = int(row['timestamp']) - prevtimestamp
gap = gap * 100000
prevtimestamp = int(row['timestamp'])
if not 'callsign' in row.keys():
row['callsign'] = arguments.callsign
logger.debug('Row from CSV: %s' % (row))
modes = ModeS()
(df17_pos_even, df17_pos_odd) = modes.df17_pos_rep_encode(row['capability'], row['icao'], row['typecode'], row['surveillancestatus'], row['nicsupplementb'], row['altitude'], row['time'], row['latitude'], row['longitude'], row['surface'])
df17_velocity = modes.vel_heading_encode(row['capability'], row['icao'], 450, 200, -1000)
df17_callsign = modes.callsign_encode(row['capability'], row['icao'], row['callsign'])
ppm = PPM()
df17_array_position = ppm.frame_1090es_ppm_modulate(df17_pos_even, df17_pos_odd)
df17_array_velocity = ppm.frame_1090es_ppm_modulate(df17_velocity, df17_velocity)
df17_array_callsign = ppm.frame_1090es_ppm_modulate(df17_callsign, df17_callsign)
hackrf = HackRF()
#Position
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_position)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
#Velocity
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_velocity)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
#Callsign
samples_array = hackrf.hackrf_raw_IQ_format(df17_array_callsign)
samples = samples+samples_array
gap_array = ppm.addGap(arguments.intermessagegap)
samples_array = hackrf.hackrf_raw_IQ_format(gap_array)
samples = samples+samples_array
return samples
def writeOutputFile(filename, data):
tmpfile = '%s.tmp'%(filename)
logger.info('Writing %s file'%(tmpfile))
SamplesFile = open(tmpfile, 'wb')
SamplesFile.write(data)
SamplesFile.close()
os.system('sync')
os.system('rm %s' % (filename))
logger.info('dd for file: %s' % (filename))
os.system("dd if=%s of=%s bs=4k seek=63 > /dev/null 2>&1" % (tmpfile, filename))
os.system('sync')
os.system('rm %s'%(tmpfile))
def main():
global cfg
cfg = configparser.ConfigParser()
cfg.read('config.cfg')
arguments = argParser()
global logger
logging.config.fileConfig('logging.cfg')
logger = logging.getLogger(__name__)
logger.info('Starting ADSB Encoder')
logger.debug('The arguments: %s' % (arguments))
data = None
if arguments.csvfile == '':
data = singlePlane(arguments)
else:
data = manyPlanes(arguments)
writeOutputFile(arguments.outputfilename, data)
logger.info('Complete')
def threadingCSV(csv):
global cfg
cfg = configparser.ConfigParser()
cfg.read('config.cfg')
arguments = argParser()
arguments.csvfile = csv['csv']
arguments.outputfilename = csv['out']
global logger
logging.config.fileConfig('logging.cfg')
logger = logging.getLogger(__name__)
logger.info('Starting ADSB Encoder threadingCSV entry point')
logger.debug('Being called with the following CSV file: %s' % (arguments.csvfile))
logger.debug('The arguments: %s' % (arguments))
data = None
if arguments.csvfile == '':
data = singlePlane(arguments)
else:
data = manyPlanes(arguments)
writeOutputFile(arguments.outputfilename, data)
logger.info('Complete')
if __name__ == "__main__":
main()