Piotr Krysik | c8f4631 | 2017-08-30 10:39:29 +0200 | [diff] [blame] | 1 | #!/usr/bin/env python2 |
| 2 | # -*- coding: utf-8 -*- |
| 3 | ################################################## |
| 4 | # GNU Radio Python Flow Graph |
| 5 | # Title: Gr-gsm Livemon |
| 6 | # Author: Piotr Krysik |
| 7 | # Description: Interactive monitor of a single C0 channel with analysis performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo) |
| 8 | # Generated: Wed Aug 30 10:38:50 2017 |
| 9 | ################################################## |
| 10 | |
| 11 | from gnuradio import blocks |
| 12 | from gnuradio import eng_notation |
| 13 | from gnuradio import gr |
| 14 | from gnuradio.eng_option import eng_option |
| 15 | from gnuradio.filter import firdes |
| 16 | from math import pi |
| 17 | from optparse import OptionParser |
| 18 | import grgsm |
| 19 | import osmosdr |
| 20 | import pmt |
| 21 | import time |
| 22 | |
| 23 | |
| 24 | class grgsm_livemon_headless(gr.top_block): |
| 25 | |
| 26 | def __init__(self, rec_len=1000000, samp_rate=2000000.052982, fc=941.8e6, shiftoff=400e3, args="", osr=4, collector="localhost", collectorport="4729", serverport="4729", gain=30, ppm=0): |
| 27 | gr.top_block.__init__(self, "Gr-gsm Livemon") |
| 28 | |
| 29 | ################################################## |
| 30 | # Parameters |
| 31 | ################################################## |
| 32 | self.rec_len = rec_len |
| 33 | self.samp_rate = samp_rate |
| 34 | self.fc = fc |
| 35 | self.shiftoff = shiftoff |
| 36 | self.args = args |
| 37 | self.osr = osr |
| 38 | self.collector = collector |
| 39 | self.collectorport = collectorport |
| 40 | self.serverport = serverport |
| 41 | self.gain = gain |
| 42 | self.ppm = ppm |
| 43 | |
| 44 | ################################################## |
| 45 | # Blocks |
| 46 | ################################################## |
| 47 | self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + args ) |
| 48 | self.rtlsdr_source_0.set_sample_rate(samp_rate) |
| 49 | self.rtlsdr_source_0.set_center_freq(fc-shiftoff, 0) |
| 50 | self.rtlsdr_source_0.set_freq_corr(ppm, 0) |
| 51 | self.rtlsdr_source_0.set_dc_offset_mode(2, 0) |
| 52 | self.rtlsdr_source_0.set_iq_balance_mode(2, 0) |
| 53 | self.rtlsdr_source_0.set_gain_mode(False, 0) |
| 54 | self.rtlsdr_source_0.set_gain(gain, 0) |
| 55 | self.rtlsdr_source_0.set_if_gain(20, 0) |
| 56 | self.rtlsdr_source_0.set_bb_gain(20, 0) |
| 57 | self.rtlsdr_source_0.set_antenna("", 0) |
| 58 | self.rtlsdr_source_0.set_bandwidth(250e3+abs(shiftoff), 0) |
| 59 | |
| 60 | self.gsm_sdcch8_demapper_0 = grgsm.gsm_sdcch8_demapper( |
| 61 | timeslot_nr=1, |
| 62 | ) |
| 63 | self.gsm_receiver_0 = grgsm.receiver(4, ([0]), ([]), False) |
| 64 | self.gsm_message_printer_1 = grgsm.message_printer(pmt.intern(""), False, |
| 65 | False, False) |
| 66 | self.gsm_input_0 = grgsm.gsm_input( |
| 67 | ppm=ppm-int(ppm), |
| 68 | osr=4, |
| 69 | fc=fc, |
| 70 | samp_rate_in=samp_rate, |
| 71 | ) |
| 72 | self.gsm_decryption_0 = grgsm.decryption(([]), 1) |
| 73 | self.gsm_control_channels_decoder_0_0 = grgsm.control_channels_decoder() |
| 74 | self.gsm_control_channels_decoder_0 = grgsm.control_channels_decoder() |
| 75 | self.gsm_clock_offset_control_0 = grgsm.clock_offset_control(fc-shiftoff, samp_rate, osr) |
| 76 | self.gsm_bcch_ccch_sdcch4_demapper_0 = grgsm.gsm_bcch_ccch_sdcch4_demapper( |
| 77 | timeslot_nr=0, |
| 78 | ) |
| 79 | self.blocks_socket_pdu_0_1 = blocks.socket_pdu("UDP_CLIENT", collector, collectorport, 1500, False) |
| 80 | self.blocks_socket_pdu_0_0 = blocks.socket_pdu("UDP_SERVER", "127.0.0.1", serverport, 10000, False) |
| 81 | self.blocks_rotator_cc_0 = blocks.rotator_cc(-2*pi*shiftoff/samp_rate) |
| 82 | self.blocks_head_0 = blocks.head(gr.sizeof_gr_complex*1, int(rec_len*samp_rate)) |
| 83 | |
| 84 | ################################################## |
| 85 | # Connections |
| 86 | ################################################## |
| 87 | self.msg_connect((self.blocks_socket_pdu_0_0, 'pdus'), (self.gsm_message_printer_1, 'msgs')) |
| 88 | self.msg_connect((self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts'), (self.gsm_control_channels_decoder_0, 'bursts')) |
| 89 | self.msg_connect((self.gsm_clock_offset_control_0, 'ctrl'), (self.gsm_input_0, 'ctrl_in')) |
| 90 | self.msg_connect((self.gsm_control_channels_decoder_0, 'msgs'), (self.blocks_socket_pdu_0_1, 'pdus')) |
| 91 | self.msg_connect((self.gsm_control_channels_decoder_0_0, 'msgs'), (self.blocks_socket_pdu_0_1, 'pdus')) |
| 92 | self.msg_connect((self.gsm_decryption_0, 'bursts'), (self.gsm_control_channels_decoder_0_0, 'bursts')) |
| 93 | self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts')) |
| 94 | self.msg_connect((self.gsm_receiver_0, 'measurements'), (self.gsm_clock_offset_control_0, 'measurements')) |
| 95 | self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_sdcch8_demapper_0, 'bursts')) |
| 96 | self.msg_connect((self.gsm_sdcch8_demapper_0, 'bursts'), (self.gsm_decryption_0, 'bursts')) |
| 97 | self.connect((self.blocks_head_0, 0), (self.blocks_rotator_cc_0, 0)) |
| 98 | self.connect((self.blocks_rotator_cc_0, 0), (self.gsm_input_0, 0)) |
| 99 | self.connect((self.gsm_input_0, 0), (self.gsm_receiver_0, 0)) |
| 100 | self.connect((self.rtlsdr_source_0, 0), (self.blocks_head_0, 0)) |
| 101 | |
| 102 | def get_rec_len(self): |
| 103 | return self.rec_len |
| 104 | |
| 105 | def set_rec_len(self, rec_len): |
| 106 | self.rec_len = rec_len |
| 107 | self.blocks_head_0.set_length(int(self.rec_len*self.samp_rate)) |
| 108 | |
| 109 | def get_samp_rate(self): |
| 110 | return self.samp_rate |
| 111 | |
| 112 | def set_samp_rate(self, samp_rate): |
| 113 | self.samp_rate = samp_rate |
| 114 | self.rtlsdr_source_0.set_sample_rate(self.samp_rate) |
| 115 | self.blocks_head_0.set_length(int(self.rec_len*self.samp_rate)) |
| 116 | self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate) |
| 117 | self.gsm_input_0.set_samp_rate_in(self.samp_rate) |
| 118 | |
| 119 | def get_fc(self): |
| 120 | return self.fc |
| 121 | |
| 122 | def set_fc(self, fc): |
| 123 | self.fc = fc |
| 124 | self.rtlsdr_source_0.set_center_freq(self.fc-self.shiftoff, 0) |
| 125 | self.gsm_input_0.set_fc(self.fc) |
| 126 | |
| 127 | def get_shiftoff(self): |
| 128 | return self.shiftoff |
| 129 | |
| 130 | def set_shiftoff(self, shiftoff): |
| 131 | self.shiftoff = shiftoff |
| 132 | self.rtlsdr_source_0.set_center_freq(self.fc-self.shiftoff, 0) |
| 133 | self.rtlsdr_source_0.set_bandwidth(250e3+abs(self.shiftoff), 0) |
| 134 | self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate) |
| 135 | |
| 136 | def get_args(self): |
| 137 | return self.args |
| 138 | |
| 139 | def set_args(self, args): |
| 140 | self.args = args |
| 141 | |
| 142 | def get_osr(self): |
| 143 | return self.osr |
| 144 | |
| 145 | def set_osr(self, osr): |
| 146 | self.osr = osr |
| 147 | |
| 148 | def get_collector(self): |
| 149 | return self.collector |
| 150 | |
| 151 | def set_collector(self, collector): |
| 152 | self.collector = collector |
| 153 | |
| 154 | def get_collectorport(self): |
| 155 | return self.collectorport |
| 156 | |
| 157 | def set_collectorport(self, collectorport): |
| 158 | self.collectorport = collectorport |
| 159 | |
| 160 | def get_serverport(self): |
| 161 | return self.serverport |
| 162 | |
| 163 | def set_serverport(self, serverport): |
| 164 | self.serverport = serverport |
| 165 | |
| 166 | def get_gain(self): |
| 167 | return self.gain |
| 168 | |
| 169 | def set_gain(self, gain): |
| 170 | self.gain = gain |
| 171 | self.rtlsdr_source_0.set_gain(self.gain, 0) |
| 172 | |
| 173 | def get_ppm(self): |
| 174 | return self.ppm |
| 175 | |
| 176 | def set_ppm(self, ppm): |
| 177 | self.ppm = ppm |
| 178 | self.rtlsdr_source_0.set_freq_corr(self.ppm, 0) |
| 179 | self.gsm_input_0.set_ppm(self.ppm-int(self.ppm)) |
| 180 | |
| 181 | |
| 182 | def argument_parser(): |
| 183 | parser = OptionParser(option_class=eng_option, usage="%prog: [options]") |
| 184 | parser.add_option( |
| 185 | "-T", "--rec-len", dest="rec_len", type="eng_float", default=eng_notation.num_to_str(1000000), |
| 186 | help="Set Recording length in seconds [default=%default]") |
| 187 | parser.add_option( |
| 188 | "-s", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(2000000.052982), |
| 189 | help="Set samp_rate [default=%default]") |
| 190 | parser.add_option( |
| 191 | "-f", "--fc", dest="fc", type="eng_float", default=eng_notation.num_to_str(941.8e6), |
| 192 | help="Set GSM channel's central frequency [default=%default]") |
| 193 | parser.add_option( |
| 194 | "-o", "--shiftoff", dest="shiftoff", type="eng_float", default=eng_notation.num_to_str(400e3), |
| 195 | help="Set Frequency Shiftoff [default=%default]") |
| 196 | parser.add_option( |
| 197 | "", "--args", dest="args", type="string", default="", |
| 198 | help="Set Device Arguments [default=%default]") |
| 199 | parser.add_option( |
| 200 | "", "--osr", dest="osr", type="intx", default=4, |
| 201 | help="Set OverSampling Ratio [default=%default]") |
| 202 | parser.add_option( |
| 203 | "", "--collector", dest="collector", type="string", default="localhost", |
| 204 | help="Set IP or DNS name of collector point [default=%default]") |
| 205 | parser.add_option( |
| 206 | "", "--collectorport", dest="collectorport", type="string", default="4729", |
| 207 | help="Set UDP port number of collector [default=%default]") |
| 208 | parser.add_option( |
| 209 | "", "--serverport", dest="serverport", type="string", default="4729", |
| 210 | help="Set UDP server listening port [default=%default]") |
| 211 | parser.add_option( |
| 212 | "-g", "--gain", dest="gain", type="eng_float", default=eng_notation.num_to_str(30), |
| 213 | help="Set RF Gain [default=%default]") |
| 214 | parser.add_option( |
| 215 | "-p", "--ppm", dest="ppm", type="eng_float", default=eng_notation.num_to_str(0), |
| 216 | help="Set Clock frequency offset in ppms (1/1e6 parts) [default=%default]") |
| 217 | return parser |
| 218 | |
| 219 | |
| 220 | def main(top_block_cls=grgsm_livemon_headless, options=None): |
| 221 | if options is None: |
| 222 | options, _ = argument_parser().parse_args() |
| 223 | |
| 224 | tb = top_block_cls(rec_len=options.rec_len, samp_rate=options.samp_rate, fc=options.fc, shiftoff=options.shiftoff, args=options.args, osr=options.osr, collector=options.collector, collectorport=options.collectorport, serverport=options.serverport, gain=options.gain, ppm=options.ppm) |
| 225 | tb.start() |
| 226 | tb.wait() |
| 227 | |
| 228 | |
| 229 | if __name__ == '__main__': |
| 230 | main() |