def handle_stats_reply(self, event):
"""Handle stats replies for v0x01 switches.
Args:
event (:class:`~kytos.core.events.KytosEvent):
Event with ofpt_stats_reply in message.
"""
switch = event.source.switch
msg = event.content['message']
if msg.body_type == StatsType.OFPST_FLOW:
switch.flows = [
Flow01.from_of_flow_stats(f, switch) for f in msg.body
]
event_raw = KytosEvent(name='kytos/of_core.flow_stats.received',
content={'switch': switch})
self.controller.buffers.app.put(event_raw)
elif msg.body_type == StatsType.OFPST_PORT:
port_stats = [of_port_stats for of_port_stats in msg.body]
port_stats_event = KytosEvent(name=f"kytos/of_core.port_stats",
content={
'switch': switch,
'port_stats': port_stats
})
self.controller.buffers.app.put(port_stats_event)
elif msg.body_type == StatsType.OFPST_DESC:
switch.update_description(msg.body)
def _generate_install_flow_req_body(self, endpoint_a: Endpoint, endpoint_b: Endpoint):
"""Generate a Flow object to be uses as a body to the install flow request."""
if endpoint_a is None:
raise ValueError("Endpoint A is missing.")
if endpoint_b is None:
raise ValueError("Endpoint Z is missing.")
# Build a basic flow from settings template
flow_dict = settings.flow_dict_v10 # Future expansion to OF1.3
# Change flow values to match endpoint A to output to endpoint B
flow = Flow.from_dict(flow_dict, self.controller.get_switch_by_dpid(endpoint_a._dpid))
flow.match.in_port = int(endpoint_a._port)
flow.actions[0].value = int(endpoint_b._port)
flow.actions[0].port = int(endpoint_b._port)
# Setting endpoint A vlan
if endpoint_a._tag is not None and endpoint_a._tag._type == 'ctag':
flow.match.dl_vlan = int(endpoint_a._tag._value)
# Setting endpoint B vlan
if endpoint_b._tag is not None and endpoint_a._tag != endpoint_b._tag and endpoint_b._tag._type == 'ctag':
action = ActionSetVlan(int(endpoint_b._tag._value))
flow.actions.append(action)
return flow
def test_of_flow_mod(self):
"""Test convertion from Flow to OFFlow."""
flow_mod_01 = Flow01.from_dict(self.EXPECTED, self.SWITCH)
flow_mod_04 = Flow04.from_dict(self.EXPECTED, self.SWITCH)
of_flow_mod_01 = flow_mod_01.as_of_add_flow_mod()
of_flow_mod_04 = flow_mod_04.as_of_delete_flow_mod()
self.assertIsInstance(of_flow_mod_01, OFFlow01)
self.assertIsInstance(of_flow_mod_04, OFFlow04)
def handle_stats_reply(event):
"""This method handles stats replies for v0x01 switches.
Args:
event (:class:`~kytos.core.events.KytosEvent):
Event with ofpt_stats_reply in message.
"""
switch = event.source.switch
msg = event.content['message']
if msg.body_type == StatsType.OFPST_FLOW:
switch.flows = [Flow01.from_of_flow_stats(f, switch)
for f in msg.body]
elif msg.body_type == StatsType.OFPST_DESC:
switch.update_description(msg.body)