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Enable global port forwarding in root namespace

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This should fix the problem seen in VirtualBox where you
may have some random interface which is host-only which needs
to have port forwarding set up on it.

Change-Id: Iacdbb129d52529783bdab1c3d768131f6eaf0364
This commit is contained in:
Bob Lantz 2016-06-23 18:53:19 -07:00 committed by Bob Lantz
parent 68e4e8757d
commit 930138e306
1 changed files with 12 additions and 24 deletions
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36
tools/dev/mininet/onos.py
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@ -55,7 +55,6 @@ from sys import argv
from glob import glob
import time
from functools import partial
from re import search
### ONOS Environment
@ -365,7 +364,7 @@ class ONOSCluster( Controller ):
args = list( args )
name = args.pop( 0 )
topo = kwargs.pop( 'topo', None )
nat = kwargs.pop( 'nat', 'nat0' )
self.nat = kwargs.pop( 'nat', 'nat0' )
nodeOpts = kwargs.pop( 'nodeOpts', {} )
# Default: single switch with 1 ONOS node
if not topo:
@ -384,8 +383,8 @@ class ONOSCluster( Controller ):
host=partial( ONOSNode, **nodeOpts ),
switch=LinuxBridge,
controller=None )
if nat:
self.net.addNAT( nat ).configDefault()
if self.nat:
self.net.addNAT( self.nat ).configDefault()
updateNodeIPs( self.env, self.nodes() )
self._remoteControllers = []
@ -420,32 +419,21 @@ class ONOSCluster( Controller ):
"Return list of ONOS nodes"
return [ h for h in self.net.hosts if isinstance( h, ONOSNode ) ]
def defaultIntf( self ):
"Call ip route to determine default interface"
result = quietRun( 'ip route | grep default', shell=True ).strip()
match = search( r'dev\s+([^\s]+)', result )
if match:
intf = match.group( 1 )
else:
warn( "Can't find default network interface - using eth0\n" )
intf = 'eth0'
return intf
def configPortForwarding( self, ports=[], intf='', action='A' ):
"""Start or stop forwarding on intf to all nodes
def configPortForwarding( self, ports=[], action='A' ):
"""Start or stop port forwarding (any intf) for all nodes
ports: list of ports to forward
action: A=add/start, D=delete/stop (default: A)"""
if not intf:
intf = self.defaultIntf()
self.cmd( 'iptables -' + action, 'FORWARD -d', self.ipBase,
'-j ACCEPT' )
for port in ports:
for index, node in enumerate( self.nodes() ):
ip, inport = node.IP(), port + index
# Configure a destination NAT rule
cmd = ( 'iptables -t nat -{action} PREROUTING -t nat '
'-i {intf} -p tcp --dport {inport} '
'-j DNAT --to-destination {ip}:{port}' )
self.cmd( cmd.format( **locals() ) )
self.cmd( 'iptables -t nat -' + action,
'PREROUTING -t nat -p tcp --dport', inport,
'-j DNAT --to-destination %s:%s' % ( ip, port ) )
class ONOSSwitchMixin( object ):
"Mixin for switches that connect to an ONOSCluster"
def start( self, controllers ):