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Use ifconfig for interface verification.

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Previously we were using both ip link and ifconfig - not only is
this inconsistent and redundant, but it also broke when newer
ip link changed the reported names of certain interfacs to
"h1-eth0@36:".

Fixes #592
This commit is contained in:
Bob Lantz
2016-01-25 14:27:34 -08:00
parent 76d3252cd0
commit 9a22e2b737
1 changed files with 3 additions and 2 deletions
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examples/hwintf.py
+3 -2
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@@ -17,10 +17,11 @@ from mininet.util import quietRun
def checkIntf( intf ): def checkIntf( intf ):
"Make sure intf exists and is not configured." "Make sure intf exists and is not configured."
if ( ' %s:' % intf ) not in quietRun( 'ip link show' ): config = quietRun( 'ifconfig %s 2>/dev/null' % intf, shell=True )
if not config:
error( 'Error:', intf, 'does not exist!\n' ) error( 'Error:', intf, 'does not exist!\n' )
exit( 1 ) exit( 1 )
ips = re.findall( r'\d+\.\d+\.\d+\.\d+', quietRun( 'ifconfig ' + intf ) ) ips = re.findall( r'\d+\.\d+\.\d+\.\d+', config )
if ips: if ips:
error( 'Error:', intf, 'has an IP address,' error( 'Error:', intf, 'has an IP address,'
'and is probably in use!\n' ) 'and is probably in use!\n' )