1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# TRX Toolkit
# Auxiliary tool to generate and send random bursts via TRX DATA
# interface, which may be useful for fuzzing and testing
#
# (C) 2017-2018 by Vadim Yanitskiy <axilirator@gmail.com>
#
# All Rights Reserved
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from copyright import print_copyright
CR_HOLDERS = [("2017-2018", "Vadim Yanitskiy <axilirator@gmail.com>")]
import logging as log
import signal
import argparse
import sys
from app_common import ApplicationBase
from rand_burst_gen import RandBurstGen
from data_dump import DATADumpFile
from data_if import DATAInterface
from gsm_shared import *
from data_msg import *
class Application(ApplicationBase):
def __init__(self):
print_copyright(CR_HOLDERS)
self.argv = self.parse_argv()
# Set up signal handlers
signal.signal(signal.SIGINT, self.sig_handler)
# Configure logging
self.app_init_logging(self.argv)
# Open requested capture file
if self.argv.output_file is not None:
self.ddf = DATADumpFile(self.argv.output_file)
def run(self):
# Init DATA interface with TRX or L1
if self.argv.conn_mode == "TRX":
self.data_if = DATAInterface(
self.argv.remote_addr, self.argv.base_port + 2,
self.argv.bind_addr, self.argv.base_port + 102)
elif self.argv.conn_mode == "L1":
self.data_if = DATAInterface(
self.argv.remote_addr, self.argv.base_port + 102,
self.argv.bind_addr, self.argv.base_port + 2)
# Init random burst generator
burst_gen = RandBurstGen()
# Init an empty DATA message
if self.argv.conn_mode == "TRX":
msg = DATAMSG_L12TRX()
elif self.argv.conn_mode == "L1":
msg = DATAMSG_TRX2L1()
# Generate a random frame number or use provided one
fn_init = msg.rand_fn() if self.argv.tdma_fn is None \
else self.argv.tdma_fn
# Send as much bursts as required
for i in range(self.argv.burst_count):
# Randomize the message header
msg.rand_hdr()
# Increase and set frame number
msg.fn = (fn_init + i) % GSM_HYPERFRAME
# Set timeslot number
if self.argv.tdma_tn is not None:
msg.tn = self.argv.tdma_tn
# Set transmit power level
if self.argv.pwr is not None:
msg.pwr = self.argv.pwr
# Set time of arrival
if self.argv.toa is not None:
msg.toa256 = int(float(self.argv.toa) * 256.0 + 0.5)
elif self.argv.toa256 is not None:
msg.toa256 = self.argv.toa256
# Set RSSI
if self.argv.rssi is not None:
msg.rssi = self.argv.rssi
# Generate a random burst
if self.argv.burst_type == "NB":
burst = burst_gen.gen_nb()
elif self.argv.burst_type == "FB":
burst = burst_gen.gen_fb()
elif self.argv.burst_type == "SB":
burst = burst_gen.gen_sb()
elif self.argv.burst_type == "AB":
burst = burst_gen.gen_ab()
# Convert to soft-bits in case of TRX -> L1 message
if self.argv.conn_mode == "L1":
burst = msg.ubit2sbit(burst)
# Set burst
msg.burst = burst
log.info("Sending %d/%d %s burst %s to %s..."
% (i + 1, self.argv.burst_count, self.argv.burst_type,
msg.desc_hdr(), self.argv.conn_mode))
# Send message
self.data_if.send_msg(msg)
# Append a new message to the capture
if self.argv.output_file is not None:
self.ddf.append_msg(msg)
def parse_argv(self):
parser = argparse.ArgumentParser(prog = "burst_gen",
description = "Auxiliary tool to generate and send random bursts")
# Register common logging options
self.app_reg_logging_options(parser)
trx_group = parser.add_argument_group("TRX interface")
trx_group.add_argument("-r", "--remote-addr",
dest = "remote_addr", type = str, default = "127.0.0.1",
help = "Set remote address (default %(default)s)")
trx_group.add_argument("-b", "--bind-addr",
dest = "bind_addr", type = str, default = "0.0.0.0",
help = "Set bind address (default %(default)s)")
trx_group.add_argument("-p", "--base-port",
dest = "base_port", type = int, default = 6700,
help = "Set base port number (default %(default)s)")
trx_group.add_argument("-m", "--conn-mode",
dest = "conn_mode", type = str,
choices = ["TRX", "L1"], default = "TRX",
help = "Where to send bursts (default %(default)s)")
trx_group.add_argument("-o", "--output-file",
dest = "output_file", type = str,
help = "Write bursts to a capture file")
bg_group = parser.add_argument_group("Burst generation")
bg_group.add_argument("-B", "--burst-type",
dest = "burst_type", type = str,
choices = ["NB", "FB", "SB", "AB"], default = "NB",
help = "Random burst type (default %(default)s)")
bg_group.add_argument("-c", "--burst-count", metavar = "N",
dest = "burst_count", type = int, default = 1,
help = "How many bursts to send (default %(default)s)")
bg_group.add_argument("-f", "--frame-number", metavar = "FN",
dest = "tdma_fn", type = int,
help = "Set TDMA frame number (default random)")
bg_group.add_argument("-t", "--timeslot", metavar = "TN",
dest = "tdma_tn", type = int, choices = range(0, 8),
help = "Set TDMA timeslot (default random)")
bg_pwr_group = bg_group.add_mutually_exclusive_group()
bg_pwr_group.add_argument("--pwr", metavar = "dBm",
dest = "pwr", type = int,
help = "Set power level (default random)")
bg_pwr_group.add_argument("--rssi", metavar = "dBm",
dest = "rssi", type = int,
help = "Set RSSI (default random)")
bg_toa_group = bg_group.add_mutually_exclusive_group()
bg_toa_group.add_argument("--toa",
dest = "toa", type = int,
help = "Set Timing of Arrival in symbols (default random)")
bg_toa_group.add_argument("--toa256",
dest = "toa256", type = int,
help = "Set Timing of Arrival in 1/256 symbol periods")
return parser.parse_args()
def sig_handler(self, signum, frame):
log.info("Signal %d received" % signum)
if signum is signal.SIGINT:
sys.exit(0)
if __name__ == '__main__':
app = Application()
app.run()
|