/usr/bin/ovs-tcpundump is in openvswitch-switch 2.5.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 | #! /usr/bin/python
#
# Copyright (c) 2010 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import getopt
import re
import sys
argv0 = sys.argv[0]
def usage():
print """\
%(argv0)s: print "tcpdump -xx" output as hex
usage: %(argv0)s < FILE
where FILE is output from "tcpdump -xx".
The following options are also available:
-h, --help display this help message
-V, --version display version information\
""" % {'argv0': argv0}
sys.exit(0)
if __name__ == "__main__":
try:
options, args = getopt.gnu_getopt(sys.argv[1:], 'hV',
['help', 'version'])
except getopt.GetoptError, geo:
sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
sys.exit(1)
for key, value in options:
if key in ['-h', '--help']:
usage()
elif key in ['-V', '--version']:
print "ovs-tcpundump (Open vSwitch) 2.5.0"
else:
sys.exit(0)
if len(args) != 0:
sys.stderr.write("%s: non-option argument not supported "
"(use --help for help)\n" % argv0)
sys.exit(1)
packet = ''
regex = re.compile(r'^\s+0x([0-9a-fA-F]+): ((?: [0-9a-fA-F]{4})+)')
while True:
line = sys.stdin.readline()
if line == "":
break
m = regex.match(line)
if m is None or int(m.group(1)) == 0:
if packet != '':
print packet
packet = ''
if m:
packet += re.sub(r'\s', '', m.group(2), 0)
if packet != '':
print packet
# Local variables:
# mode: python
# End:
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