2cff340d17
python2 is deprecated so move script to python3. While at it, make some minor adjustments. Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com> Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
55 lines
1.5 KiB
Python
Executable file
55 lines
1.5 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright (c) 2012-2022, Intel Corporation
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#
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# Author: Johannes Berg <johannes@sipsolutions.net>
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import sys, struct, re
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from binascii import unhexlify
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def write_pcap_header(pcap_file):
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pcap_file.write(
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struct.pack('<IHHIIII',
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0xa1b2c3d4, 2, 4, 0, 0, 65535,
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105 # raw 802.11 format
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))
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def pcap_addpacket(pcap_file, ts, data):
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# ts in seconds, float
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pcap_file.write(struct.pack('<IIII',
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int(ts), int(1000000 * ts) % 1000000,
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len(data), len(data)))
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pcap_file.write(data)
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if __name__ == "__main__":
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try:
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input = sys.argv[1]
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pcap = sys.argv[2]
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except IndexError:
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print("Usage: %s <log file> <pcap file>" % sys.argv[0])
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sys.exit(2)
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input_file = open(input, 'r')
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pcap_file = open(pcap, 'wb')
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frame_re = re.compile(r'(([0-9]+.[0-9]{6}):\s*)?nl80211: MLME event frame - hexdump\(len=[0-9]*\):((\s*[0-9a-fA-F]{2})*)')
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write_pcap_header(pcap_file)
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for line in input_file:
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m = frame_re.match(line)
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if m is None:
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continue
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if m.group(2):
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ts = float(m.group(2))
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else:
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ts = 0
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hexdata = m.group(3)
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hexdata = hexdata.split()
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data = unhexlify("".join(hexdata))
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pcap_addpacket(pcap_file, ts, data)
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input_file.close()
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pcap_file.close()
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