neutron-fwaas/neutron_fwaas/services/logapi/common/fwg_callback.py

62 lines
2.4 KiB
Python

# Copyright (c) 2018 Fujitsu Limited
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from neutron.objects import ports as port_objects
from neutron.services.logapi.common import constants as log_const
from neutron.services.logapi.drivers import manager
from neutron_lib.callbacks import events
from neutron_lib import constants as nl_const
from neutron_fwaas.services.logapi.common import log_db_api
class FirewallGroupCallBack(manager.ResourceCallBackBase):
def handle_event(self, resource, event, trigger, **kwargs):
payload = kwargs.get('payload')
context = payload.context
ports_delta = []
if event == events.AFTER_CREATE:
# Update log when a new firewall group is created with ports
ports_delta = payload.latest_state['ports']
elif event == events.AFTER_UPDATE:
old_ports = payload.states[0]['ports']
new_ports = payload.states[1]['ports']
# Check whether port is updated from firewall group or not
ports_delta = \
set(new_ports).symmetric_difference(set(old_ports))
if self.need_to_notify(context, ports_delta):
self.trigger_logging(context, payload.resource_id, ports_delta)
def trigger_logging(self, context, fwg_id, ports_delta):
log_resources = log_db_api.get_logs_for_fwg(
context, fwg_id, ports_delta)
if log_resources:
self.resource_push_api(
log_const.RESOURCE_UPDATE, context, log_resources)
def need_to_notify(self, context, ports):
notify = False
for port_id in ports:
port = port_objects.Port.get_object(context, id=port_id)
device_owner = port.get('device_owner', '')
if device_owner in nl_const.ROUTER_INTERFACE_OWNERS:
notify = True
break
return notify