113 lines
3.7 KiB
Python
113 lines
3.7 KiB
Python
# Copyright 2013, Nachi Ueno, NTT I3, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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from neutron_lib.plugins import constants
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from neutron_lib.plugins import directory
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from neutron_lib import rpc as n_rpc
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from oslo_log import log as logging
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import oslo_messaging
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import six
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from neutron_vpnaas.services.vpn.service_drivers import driver_validator
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LOG = logging.getLogger(__name__)
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@six.add_metaclass(abc.ABCMeta)
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class VpnDriver(object):
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def __init__(self, service_plugin, validator=None):
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self.service_plugin = service_plugin
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if validator is None:
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validator = driver_validator.VpnDriverValidator(self)
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self.validator = validator
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self.name = ''
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@property
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def l3_plugin(self):
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return directory.get_plugin(constants.L3)
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@property
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def service_type(self):
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pass
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@abc.abstractmethod
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def create_vpnservice(self, context, vpnservice):
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pass
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@abc.abstractmethod
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def update_vpnservice(
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self, context, old_vpnservice, vpnservice):
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pass
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@abc.abstractmethod
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def delete_vpnservice(self, context, vpnservice):
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pass
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@abc.abstractmethod
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def create_ipsec_site_connection(self, context, ipsec_site_connection):
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pass
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@abc.abstractmethod
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def update_ipsec_site_connection(self, context, old_ipsec_site_connection,
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ipsec_site_connection):
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pass
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@abc.abstractmethod
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def delete_ipsec_site_connection(self, context, ipsec_site_connection):
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pass
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class BaseIPsecVpnAgentApi(object):
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"""Base class for IPSec API to agent."""
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def __init__(self, topic, default_version, driver):
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self.topic = topic
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self.driver = driver
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target = oslo_messaging.Target(topic=topic, version=default_version)
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self.client = n_rpc.get_client(target)
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def _agent_notification(self, context, method, router_id,
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version=None, **kwargs):
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"""Notify update for the agent.
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This method will find where is the router, and
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dispatch notification for the agent.
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"""
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admin_context = context if context.is_admin else context.elevated()
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if not version:
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version = self.target.version
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l3_agents = self.driver.l3_plugin.get_l3_agents_hosting_routers(
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admin_context, [router_id],
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admin_state_up=True,
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active=True)
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for l3_agent in l3_agents:
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LOG.debug('Notify agent at %(topic)s.%(host)s the message '
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'%(method)s %(args)s',
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{'topic': self.topic,
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'host': l3_agent.host,
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'method': method,
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'args': kwargs})
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cctxt = self.client.prepare(server=l3_agent.host, version=version)
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cctxt.cast(context, method, **kwargs)
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def vpnservice_updated(self, context, router_id, **kwargs):
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"""Send update event of vpnservices."""
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kwargs['router'] = {'id': router_id}
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self._agent_notification(context, 'vpnservice_updated', router_id,
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**kwargs)
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