def writeRules(deviceName):
for index in xrange(1, LAST_INDEX + 1):
cmd = ["iptables", "-A", "PREROUTING", "-t", "nat", "-i", deviceName,
"-p", "tcp", "--dport", str(sshPortFromHostIndex(index)), "-j", "DNAT",
"--to", "%s:22" % ipAddressFromHostIndex(index)]
runCmd(cmd, canFail=False)
cmd = ["iptables", "-t", "nat", "-A", "POSTROUTING", "-o", deviceName, "-j", 'MASQUERADE']
runCmd(cmd, canFail=True)
def deleteRules(deviceName):
for index in xrange(1, LAST_INDEX):
cmd = ["iptables", '-D', 'PREROUTING', '-t', 'nat', '-i', deviceName,
"-p", "tcp", "--dport", str(sshPortFromHostIndex(index)), "-j", "DNAT",
"--to-destination", "%s:22" % ipAddressFromHostIndex(index)]
runCmd(cmd, canFail=True)
cmd = ["iptables", "-t", "nat", "-D", "POSTROUTING", "-o", deviceName, "-j", 'MASQUERADE']
runCmd(cmd, canFail=True)
def deleteRules(interface):
for index in xrange(1, 4):
cmd = ["iptables", '-D', 'PREROUTING', '-t', 'nat', '-i', interface,
"-p", "tcp", "--dport", str(network.sshPortFromHostIndex(index)), "-j", "DNAT",
"--to-destination", "%s:22" % network.ipAddressFromHostIndex(index)]
runCmd(cmd, canFail=True)
cmd = ["iptables", "-t", "nat", "-D", "POSTROUTING", "-o", interface, "-j",
"MASQUERADE"]
runCmd(cmd, canFail=True)
def writeRules(interface):
for index in xrange(1, 4):
cmd = ["iptables", "-A", "PREROUTING", "-t", "nat", "-i", interface,
"-p", "tcp", "--dport", str(network.sshPortFromHostIndex(index)), "-j", "DNAT",
"--to", "%s:22" % network.ipAddressFromHostIndex(index)]
print " ".join(cmd)
runCmd(cmd, canFail=False)
cmd = ["iptables", "-t", "nat", "-A", "POSTROUTING", "-o", interface, "-j",
"MASQUERADE"]
runCmd(cmd, canFail=True)
def ipAddress(self):
return network.ipAddressFromHostIndex(self._index)
def ipAddress(self):
return network.ipAddressFromHostIndex(self._index)