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127 lines
3.8 KiB
Python
Executable File
127 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python2
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'''
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(C) 2012, Mariano Alvira <mar@devl.org>
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(C) 2014, Oliver Hahm <oliver.hahm@inria.fr>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the Institute nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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'''
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import sys,os,time
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from struct import pack
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import re
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import serial
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if len(sys.argv) < 3:
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sys.stderr.write( "Usage: %s tty channel [outfile]\n" %(sys.argv[0]))
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sys.stderr.write( " channel = 11-26\n")
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sys.exit(2)
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# change the channel
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try:
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serport = serial.Serial(sys.argv[1], baudrate=115200, dsrdtr=0, rtscts=0, timeout=1)
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serport.setDTR(0)
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serport.setRTS(0)
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except IOError:
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print "error opening port"
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sys.exit(2)
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time.sleep(1)
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chanstr = ''
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sys.stderr.write('chan %s\n' % sys.argv[2])
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serport.write('chan %s\n' % sys.argv[2])
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while 1:
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c = serport.read(1)
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if (c == '\n'):
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chanstr = ''
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continue
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chanstr += c
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m = re.match(".*channel: (\w+)", chanstr)
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if m:
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chan = int(m.group(1))
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sys.stderr.write(chanstr + '\n')
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break
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try:
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sys.stderr.write('writing to file %s \n' % (sys.argv[3]))
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outfile = open(sys.argv[3], 'w+b')
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except IndexError:
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outfile = sys.stdout
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sys.stderr.write("RX: 0\r")
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### PCAP setup
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MAGIC = 0xa1b2c3d4
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MAJOR = 2
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MINOR = 4
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ZONE = 0
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SIG = 0
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SNAPLEN = 0xffff
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NETWORK = 230 # 802.15.4 no FCS
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# output overall PCAP header
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outfile.write(pack('<LHHLLLL', MAGIC, MAJOR, MINOR, ZONE, SIG, SNAPLEN, NETWORK))
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count = 0
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fileempty = 1
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newpacket = 0
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try:
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while 1:
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line = serport.readline().rstrip()
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m_rftestline = re.match(".*rftest-rx --- len 0x(\w\w).*", line)
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if m_rftestline:
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newpacket = 1
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t = time.time()
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sec = int(t)
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usec = (t - sec) * 100000
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length = int(m_rftestline.group(1), 16)
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continue
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# if this is a new packet, add a packet header
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if newpacket == 1:
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newpacket = 0
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outfile.write(pack('<LLLL',sec,usec,length,length))
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outfile.flush()
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count += 1
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sys.stderr.write("RX: %d\r" % count)
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# clear file empty flag
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if fileempty:
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fileempty = 0
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if fileempty == 0 :
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# write payload
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for d in line.split(' '):
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# do a match because their might be a \r floating around
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m = re.match('.*(\w\w).*', d)
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if m:
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outfile.write(pack('<B', int(m.group(1),16)))
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outfile.flush()
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except KeyboardInterrupt:
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# cn.close()
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sys.exit(2)
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