Bob Lantz
57 lines
1.8 KiB
Python
Executable File
57 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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Mininet Cleanup
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author: Bob Lantz (rlantz@cs.stanford.edu)
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Unfortunately, Mininet and OpenFlow don't always clean up
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properly after themselves. Until they do (or until cleanup
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functionality is integrated into the python code), this
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script may be used to get rid of unwanted garbage. It may
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also get rid of 'false positives', but hopefully nothing
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irreplaceable!
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"""
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from subprocess import Popen, PIPE
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from mininet.xterm import cleanUpScreens
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def sh( cmd ):
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"Print a command and send it to the shell"
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print cmd
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return Popen( [ '/bin/sh', '-c', cmd ], stdout=PIPE ).communicate()[ 0 ]
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def cleanup():
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"""Clean up junk which might be left over from old runs;
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do fast stuff before slow dp and link removal!"""
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print "*** Removing excess controllers/ofprotocols/ofdatapaths/pings/noxes"
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zombies = 'controller ofprotocol ofdatapath ping nox_core lt-nox_core '
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zombies += 'udpbwtest'
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# Note: real zombie processes can't actually be killed, since they
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# are already ( un )dead. Then again,
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# you can't connect to them either, so they're mostly harmless.
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sh( 'killall -9 ' + zombies + ' 2> /dev/null' )
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print "*** Removing junk from /tmp"
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sh( 'rm -f /tmp/vconn* /tmp/vlogs* /tmp/*.out /tmp/*.log' )
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print "*** Removing old screen sessions"
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cleanUpScreens()
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print "*** Removing excess kernel datapaths"
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dps = sh( "ps ax | egrep -o 'dp[0-9]+' | sed 's/dp/nl:/'" ).split( '\n' )
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for dp in dps:
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if dp != '':
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sh( 'dpctl deldp ' + dp )
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print "*** Removing all links of the pattern foo-ethX"
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links = sh( "ip link show | egrep -o '(\w+-eth\w+)'" ).split( '\n' )
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for link in links:
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if link != '':
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sh( "ip link del " + link )
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print "*** Cleanup complete."
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if __name__ == "__main__":
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cleanup()
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