lab/mininet
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

Removed underscores for public Node methods. Minor cleanup & comments.

Browse Source
This commit is contained in:
Bob Lantz
2010-03-08 15:32:41 -08:00
parent 2626693241
commit 80be564274
12 changed files with 223 additions and 188 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/sshd.py
+36 -33
View File
@@ -27,45 +27,48 @@ def TreeNet( depth=1, fanout=2, **kwargs ):
"Convenience function for creating tree networks."
topo = TreeTopo( depth, fanout )
return Mininet( topo, **kwargs )
def connectToRootNS( network, switch, ip, prefixLen, routes ):
"""Connect hosts to root namespace via switch. Starts network.
"""Connect hosts to root namespace via switch. Starts network.
network: Mininet() network object
switch: switch to connect to root namespace
ip: IP address for root namespace node
prefixLen: IP address prefix length (e.g. 8, 16, 24)
routes: host networks to route to"""
# Create a node in root namespace and link to switch 0
root = Node( 'root', inNamespace=False )
port = max( switch.ports.values() ) + 1
createLink( root, 0, switch, port )
root.setIP( root.intfs[ 0 ], ip, prefixLen )
# Start network that now includes link to root namespace
network.start()
intf = root.intfs[ 0 ]
# Add routes from root ns to hosts
for net in routes:
root.cmd( 'route add -net ' + net + ' dev ' + intf )
# Create a node in root namespace and link to switch 0
root = Node( 'root', inNamespace=False )
port = max( switch.ports.values() ) + 1
createLink( root, 0, switch, port )
root.setIP( root.intfs[ 0 ], ip, prefixLen )
# Start network that now includes link to root namespace
network.start()
intf = root.intfs[ 0 ]
# Add routes from root ns to hosts
for route in routes:
root.cmd( 'route add -net ' + route + ' dev ' + intf )
def sshd( network, cmd='/usr/sbin/sshd', opts='-D' ):
"Start a network, connect it to root ns, and run sshd on all hosts."
switch = network.switches[ 0 ] # switch to use
ip = '10.123.123.1' # our IP address on host network
routes = [ '10.0.0.0/8' ] # host networks to route to
connectToRootNS( network, switch, ip, 8, routes )
for host in network.hosts: host.cmd( cmd + ' ' + opts + '&' )
print
print "*** Hosts are running sshd at the following addresses:"
print
for host in network.hosts: print host.name, host.IP()
print
print "*** Type 'exit' or control-D to shut down network"
CLI( network )
for host in network.hosts: host.cmd( 'kill %' + cmd )
network.stop()
"Start a network, connect it to root ns, and run sshd on all hosts."
switch = network.switches[ 0 ] # switch to use
ip = '10.123.123.1' # our IP address on host network
routes = [ '10.0.0.0/8' ] # host networks to route to
connectToRootNS( network, switch, ip, 8, routes )
for host in network.hosts:
host.cmd( cmd + ' ' + opts + '&' )
print
print "*** Hosts are running sshd at the following addresses:"
print
for host in network.hosts:
print host.name, host.IP()
print
print "*** Type 'exit' or control-D to shut down network"
CLI( network )
for host in network.hosts:
host.cmd( 'kill %' + cmd )
network.stop()
if __name__ == '__main__':
lg.setLogLevel( 'info')
init()
network = TreeNet( depth=1, fanout=4, switch=KernelSwitch )
sshd( network )
lg.setLogLevel( 'info')
init()
net = TreeNet( depth=1, fanout=4, switch=KernelSwitch )
sshd( net )