Created
December 10, 2017 03:50
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Create a lot of sshd host for testing, based on mininet
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| #!/usr/bin/python | |
| import ipaddress | |
| import argparse | |
| from mininet.topo import Topo | |
| from mininet.nodelib import LinuxBridge | |
| from mininet.net import Mininet | |
| from mininet.cli import CLI | |
| from mininet.util import waitListening | |
| class SSHdTopo(Topo): | |
| def __init__(self, bridge_name, num_hosts=4): | |
| Topo.__init__(self) | |
| hosts = [self.addHost('h%d' % i) for i in xrange(num_hosts)] | |
| br = self.addSwitch(bridge_name, cls=LinuxBridge) | |
| for host in hosts: | |
| self.addLink(host, br) | |
| if __name__ == '__main__': | |
| parser = argparse.ArgumentParser(description='start ip and bridge name required.') | |
| parser.add_argument('ip', help='Begining ip') | |
| parser.add_argument('-n', '--num-of-hosts', dest='num_of_hosts', type=int, metavar='NUM-OF-HOSTS', default=100, | |
| help='Amount of hosts to run, default is 100') | |
| parser.add_argument('-b', '--bridge', dest='bridge_name', default='br0', | |
| help='Linux bridge name, default is br0') | |
| args = parser.parse_args() | |
| topology = Mininet(SSHdTopo(args.bridge_name, args.num_of_hosts)) | |
| ip = ipaddress.ip_address(unicode(args.ip)) | |
| prefix = '16' | |
| for host in topology.hosts: | |
| host.setIP(str(ip) + '/' + prefix) | |
| ip = ip + 1 | |
| host.cmd('/usr/sbin/sshd -D &') | |
| br = topology[args.bridge_name] | |
| br.start(topology['c0']) | |
| br.cmd('brctl addif %s eth0' % args.bridge_name) | |
| print "*** Enviroment ready, Type 'exit' or control-D to shut down network" | |
| CLI(topology) | |
| for host in topology.hosts: | |
| host.cmd('kill %/usr/sbin/sshd') |
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