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Harald Welte gerrit-no-reply at lists.osmocom.org
Review at https://gerrit.osmocom.org/6788
fake_trx: implement a new tool for burst sending
This change introduces a new tool for sending existing bursts from
file or standard input either to L1 (OsmoBTS or OsmocomBB) or to
TRX (OsmoTRX and GR-GSM TRX).
Change-Id: I2c542583252d31daac466e6c7837317fda8a7020
---
M src/target/fake_trx/README
A src/target/fake_trx/burst_send.py
2 files changed, 194 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/88/6788/1
diff --git a/src/target/fake_trx/README b/src/target/fake_trx/README
index 883a5f9..6e3ce03 100644
--- a/src/target/fake_trx/README
+++ b/src/target/fake_trx/README
@@ -25,5 +25,9 @@
- burst_gen.py - a tool for sending GSM bursts either to L1
(OsmoBTS or OsmocomBB) or to TRX (OsmoTRX and GR-GSM TRX).
- Currently it is only possible to send random bursts of
+ Currently it is only possible to generate random bursts of
different types: NB, FB, SB, AB.
+
+ - burst_send.py - a tool for sending existing bursts from file
+ or standard input either to L1 (OsmoBTS or OsmocomBB) or to
+ TRX (OsmoTRX and GR-GSM TRX).
diff --git a/src/target/fake_trx/burst_send.py b/src/target/fake_trx/burst_send.py
new file mode 100755
index 0000000..4d5c47f
--- /dev/null
+++ b/src/target/fake_trx/burst_send.py
@@ -0,0 +1,189 @@
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+# Simple tool to send bursts via TRX DATA interface
+#
+# (C) 2017 by Vadim Yanitskiy <axilirator at 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.
+
+import random
+import signal
+import getopt
+import sys
+
+from data_if import DATAInterface
+
+COPYRIGHT = \
+ "Copyright (C) 2017 by Vadim Yanitskiy <axilirator at gmail.com>\n" \
+ "License GPLv2+: GNU GPL version 2 or later " \
+ "<http://gnu.org/licenses/gpl.html>\n" \
+ "This is free software: you are free to change and redistribute it.\n" \
+ "There is NO WARRANTY, to the extent permitted by law.\n"
+
+class Application:
+ # Application variables
+ remote_addr = "127.0.0.1"
+ base_port = 5700
+ conn_mode = "TRX"
+
+ burst_src = None
+ pwr = None
+ fn = None
+ tn = None
+
+ def __init__(self):
+ self.print_copyright()
+ self.parse_argv()
+
+ # Set up signal handlers
+ signal.signal(signal.SIGINT, self.sig_handler)
+
+ def run(self):
+ # Init DATA interface with TRX or L1
+ if self.conn_mode == "TRX":
+ self.data_if = DATAInterface(self.remote_addr,
+ self.base_port + 2, self.base_port + 102)
+ elif self.conn_mode == "L1":
+ self.data_if = DATAInterface(self.remote_addr,
+ self.base_port + 102, self.base_port + 2)
+ else:
+ self.print_help("[!] Unknown connection type")
+ sys.exit(2)
+
+ # Open the burst source (file or stdin)
+ if self.burst_src is not None:
+ src = open(self.burst_src, "r")
+ else:
+ src = sys.stdin
+
+ # Generate a random frame number or use provided one
+ if self.fn is None:
+ fn = random.randint(0, DATAInterface.GSM_HYPERFRAME)
+ else:
+ fn = self.fn
+
+ # Read the burst source line-by-line
+ for line in src:
+ # Strip spaces
+ burst = line.strip()
+ buf = []
+
+ # Check length
+ if len(burst) != 148:
+ print("[!] Dropping burst due to length != 148")
+ continue
+
+ print("[i] Sending a burst (fn=%u) to %s..."
+ % (fn, self.conn_mode))
+
+ # Parse a string
+ for bit in burst:
+ if bit == "1":
+ buf.append(1)
+ else:
+ buf.append(0)
+
+ # Send to TRX or L1
+ if self.conn_mode == "TRX":
+ self.data_if.send_trx_msg(buf,
+ self.tn, fn, self.pwr)
+ elif self.conn_mode == "L1":
+ self.data_if.send_l1_msg(buf,
+ self.tn, fn, self.pwr)
+
+ # Increase frame number (for count > 1)
+ fn = (fn + 1) % DATAInterface.GSM_HYPERFRAME
+
+ # Finish
+ self.shutdown()
+
+ def print_copyright(self):
+ print(COPYRIGHT)
+
+ def print_help(self, msg = None):
+ s = " Usage: " + sys.argv[0] + " [options]\n\n" \
+ " Some help...\n" \
+ " -h --help this text\n\n"
+
+ s += " TRX interface specific\n" \
+ " -m --conn-mode Send bursts to: TRX (default) / L1\n" \
+ " -r --remote-addr Set remote address (default %s)\n" \
+ " -p --base-port Set base port number (default %d)\n\n"
+
+ s += " Burst generation\n" \
+ " -i --burst-file Read bursts from file (default stdin)\n" \
+ " -f --frame-number Set frame number (default random)\n" \
+ " -t --timeslot Set timeslot index (default random)\n" \
+ " -l --power-level Set transmit level (default random)\n" \
+
+ print(s % (self.remote_addr, self.base_port))
+
+ if msg is not None:
+ print(msg)
+
+ def parse_argv(self):
+ try:
+ opts, args = getopt.getopt(sys.argv[1:],
+ "m:r:p:i:f:t:l:h",
+ [
+ "help",
+ "conn-mode=",
+ "remote-addr=",
+ "base-port=",
+ "burst-file=",
+ "frame-number=",
+ "timeslot=",
+ "power-level=",
+ ])
+ except getopt.GetoptError as err:
+ self.print_help("[!] " + str(err))
+ sys.exit(2)
+
+ for o, v in opts:
+ if o in ("-h", "--help"):
+ self.print_help()
+ sys.exit(2)
+
+ elif o in ("-m", "--conn-mode"):
+ self.conn_mode = v
+ elif o in ("-r", "--remote-addr"):
+ self.remote_addr = v
+ elif o in ("-p", "--base-port"):
+ self.base_port = int(v)
+
+ elif o in ("-i", "--burst-file"):
+ self.burst_src = v
+ elif o in ("-f", "--frame-number"):
+ self.fn = int(v)
+ elif o in ("-t", "--timeslot"):
+ self.tn = int(v)
+ elif o in ("-l", "--power-level"):
+ self.pwr = abs(int(v))
+
+ def shutdown(self):
+ self.data_if.shutdown()
+
+ def sig_handler(self, signum, frame):
+ print("Signal %d received" % signum)
+ if signum is signal.SIGINT:
+ self.shutdown()
+ sys.exit(0)
+
+if __name__ == '__main__':
+ app = Application()
+ app.run()
--
To view, visit https://gerrit.osmocom.org/6788
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I2c542583252d31daac466e6c7837317fda8a7020
Gerrit-PatchSet: 1
Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>