def handle_topology_answer(self, pkt=None):
"""
Handle topology packet
:param pkt: contains the topology packet
:return:
"""
# if the controller is not yet connected to all local controllers
# don't handle topology packets
if not Configuration.get('system_done'):
return
ip = pkt.ip.encode('utf-8')
mac = pkt.mac.encode('utf-8')
name = pkt.name.encode('utf-8')
port = pkt.port
switch = pkt.switch.encode('utf-8')
if name.startswith('h'): # it's a host
TopologyManager.add_device(name=name,
device=Host(name=name, ip=ip, mac=mac))
TopologyManager.get_device(name=name).add_device_to_port(
device=switch, port=1)
Log.event("topology packet with identifier", name, "from switch",
switch, "on port", port, "with ip", ip)
if TopologyManager.get_device(name=switch).add_device_to_port(
device=name, port=int(port)):
Event.trigger("topology_change",
src_device=switch,
dst_device=name,
port=int(port))
def handle_packet_in(pkt):
switch = pkt.switch.encode('utf-8')
mc_addr = pkt.mc_address.encode('utf-8')
src_ip = pkt.src_ip.encode('utf-8')
if pkt.type == 0x16:
GroupManager.add_to_group(switch, src_ip, mc_addr)
elif pkt.type == 0x17:
GroupManager.remove_from_group(switch, src_ip, mc_addr)
Event.trigger("group_update")
Log.event("Got igmp packet with type", hex(pkt.type), "and src",
src_ip, "for group", mc_addr, "from", switch)