class Failover:
gratuitous_arp = True
# Todo
arp_spoof_replier = False
def __init__(self, network_interface, src_ip, target_ip, target_MAC):
self.monitor = PingLoop(network_interface, src_ip, target_ip)
self.broadcaster = ArpLoop(network_interface, target_ip, target_ip)
self.arpResetter = ArpWithMacAddress(network_interface, target_ip,
target_ip, target_MAC)
self.isSpoofing = False
'''
This method is called with every ping reply (or timeout).
event currently contains two variables:
* up: is the host connected?
* time: the time taken to reply. if not up, this will be -1
'''
def _get_host_status(self, event):
if not event.up:
if self.isSpoofing:
print "Host is still down."
return
self.isSpoofing = True
print "# Host just went down. Starting spoof!"
if self.gratuitous_arp:
self.t = threading.Thread(target=self.broadcaster.start)
self.t.deamon = True
self.t.start()
if self.arp_spoof_replier:
pass #Todo
else:
if (self.isSpoofing):
# Todo: broadcast for original host with original hw?
print "# Host is back up!"
self.stopSpoofing()
def start(self):
try:
self.monitor.subscribe(self._get_host_status)
self.monitor.run()
except KeyboardInterrupt:
print "\nLoop interuppted by user."
self.stopSpoofing()
def stopSpoofing(self):
if self.isSpoofing:
print "# Stopping spoof"
self.broadcaster.stop()
self.arpResetter.execute()
self.t.join()
self.isSpoofing = False
class Failover: gratuitous_arp = True # Todo arp_spoof_replier = False def __init__(self, network_interface, src_ip, target_ip, target_MAC): self.monitor = PingLoop(network_interface, src_ip, target_ip) self.broadcaster = ArpLoop(network_interface, target_ip, target_ip) self.arpResetter = ArpWithMacAddress(network_interface, target_ip, target_ip, target_MAC) self.isSpoofing = False ''' This method is called with every ping reply (or timeout). event currently contains two variables: * up: is the host connected? * time: the time taken to reply. if not up, this will be -1 ''' def _get_host_status(self, event): if not event.up: if self.isSpoofing: print "Host is still down." return self.isSpoofing = True print "# Host just went down. Starting spoof!" if self.gratuitous_arp: self.t = threading.Thread(target=self.broadcaster.start) self.t.deamon = True self.t.start() if self.arp_spoof_replier: pass #Todo else: if(self.isSpoofing): # Todo: broadcast for original host with original hw? print "# Host is back up!" self.stopSpoofing() def start(self): try: self.monitor.subscribe(self._get_host_status) self.monitor.run() except KeyboardInterrupt: print "\nLoop interuppted by user." self.stopSpoofing() def stopSpoofing(self): if self.isSpoofing: print "# Stopping spoof" self.broadcaster.stop() self.arpResetter.execute() self.t.join() self.isSpoofing = False