6bdfccaf1b
This patch add the type_driver GRE to enable the creation of GRE tunnels with the OVS agent. No Endpoints ID are managed. Only Endpoint IP are stored in DB, and this IP is proposed as an endpoint ID for the OVS agent. It also fixes the bug 1201471. Implements: blueprint ml2-gre Change-Id: I1a33a4bd3ebc4c97eecf17a59ce16b8c2066ec66
207 lines
8.8 KiB
Python
207 lines
8.8 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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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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from neutron.agent import securitygroups_rpc as sg_rpc
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from neutron.common import constants as q_const
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from neutron.common import rpc as q_rpc
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from neutron.common import topics
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from neutron.db import agents_db
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from neutron.db import api as db_api
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from neutron.db import dhcp_rpc_base
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from neutron.db import l3_rpc_base
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from neutron.db import securitygroups_rpc_base as sg_db_rpc
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from neutron.openstack.common import log
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from neutron.openstack.common.rpc import proxy
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from neutron.plugins.ml2 import db
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from neutron.plugins.ml2 import driver_api as api
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from neutron.plugins.ml2.drivers import type_tunnel
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# REVISIT(kmestery): Allow the type and mechanism drivers to supply the
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# mixins and eventually remove the direct dependencies on type_tunnel.
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LOG = log.getLogger(__name__)
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TAP_DEVICE_PREFIX = 'tap'
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TAP_DEVICE_PREFIX_LENGTH = 3
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class RpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
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l3_rpc_base.L3RpcCallbackMixin,
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sg_db_rpc.SecurityGroupServerRpcCallbackMixin,
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type_tunnel.TunnelRpcCallbackMixin):
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RPC_API_VERSION = '1.1'
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# history
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# 1.0 Initial version (from openvswitch/linuxbridge)
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# 1.1 Support Security Group RPC
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def __init__(self, notifier, type_manager):
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# REVISIT(kmestery): This depends on the first three super classes
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# not having their own __init__ functions. If an __init__() is added
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# to one, this could break. Fix this and add a unit test to cover this
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# test in H3.
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super(RpcCallbacks, self).__init__(notifier, type_manager)
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def create_rpc_dispatcher(self):
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'''Get the rpc dispatcher for this manager.
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If a manager would like to set an rpc API version, or support more than
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one class as the target of rpc messages, override this method.
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'''
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return q_rpc.PluginRpcDispatcher([self,
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agents_db.AgentExtRpcCallback()])
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@classmethod
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def _device_to_port_id(cls, device):
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# REVISIT(rkukura): Consider calling into MechanismDrivers to
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# process device names, or having MechanismDrivers supply list
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# of device prefixes to strip.
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if device.startswith(TAP_DEVICE_PREFIX):
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return device[TAP_DEVICE_PREFIX_LENGTH:]
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else:
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return device
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@classmethod
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def get_port_from_device(cls, device):
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port_id = cls._device_to_port_id(device)
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port = db.get_port_and_sgs(port_id)
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if port:
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port['device'] = device
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return port
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def get_device_details(self, rpc_context, **kwargs):
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"""Agent requests device details."""
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s details requested by agent "
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"%(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port_id = self._device_to_port_id(device)
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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port = db.get_port(session, port_id)
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if not port:
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LOG.warning(_("Device %(device)s requested by agent "
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"%(agent_id)s not found in database"),
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{'device': device, 'agent_id': agent_id})
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return {'device': device}
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segments = db.get_network_segments(session, port.network_id)
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if not segments:
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LOG.warning(_("Device %(device)s requested by agent "
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"%(agent_id)s has network %(network_id) with "
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"no segments"),
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{'device': device,
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'agent_id': agent_id,
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'network_id': port.network_id})
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return {'device': device}
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#TODO(rkukura): Use/create port binding
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segment = segments[0]
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new_status = (q_const.PORT_STATUS_ACTIVE if port.admin_state_up
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else q_const.PORT_STATUS_DOWN)
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if port.status != new_status:
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port.status = new_status
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entry = {'device': device,
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'network_id': port.network_id,
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'port_id': port.id,
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'admin_state_up': port.admin_state_up,
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'network_type': segment[api.NETWORK_TYPE],
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'segmentation_id': segment[api.SEGMENTATION_ID],
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'physical_network': segment[api.PHYSICAL_NETWORK]}
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LOG.debug(_("Returning: %s"), entry)
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return entry
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def update_device_down(self, rpc_context, **kwargs):
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"""Device no longer exists on agent."""
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# TODO(garyk) - live migration and port status
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s no longer exists at agent "
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"%(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port_id = self._device_to_port_id(device)
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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port = db.get_port(session, port_id)
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if not port:
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LOG.warning(_("Device %(device)s updated down by agent "
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"%(agent_id)s not found in database"),
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{'device': device, 'agent_id': agent_id})
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return {'device': device,
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'exists': False}
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if port.status != q_const.PORT_STATUS_DOWN:
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port.status = q_const.PORT_STATUS_DOWN
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return {'device': device,
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'exists': True}
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def update_device_up(self, rpc_context, **kwargs):
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"""Device is up on agent."""
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s up at agent %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port_id = self._device_to_port_id(device)
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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port = db.get_port(session, port_id)
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if not port:
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LOG.warning(_("Device %(device)s updated up by agent "
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"%(agent_id)s not found in database"),
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{'device': device, 'agent_id': agent_id})
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if port.status != q_const.PORT_STATUS_ACTIVE:
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port.status = q_const.PORT_STATUS_ACTIVE
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class AgentNotifierApi(proxy.RpcProxy,
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sg_rpc.SecurityGroupAgentRpcApiMixin,
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type_tunnel.TunnelAgentRpcApiMixin):
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"""Agent side of the openvswitch rpc API.
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API version history:
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1.0 - Initial version.
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1.1 - Added get_active_networks_info, create_dhcp_port,
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update_dhcp_port, and removed get_dhcp_port methods.
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"""
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BASE_RPC_API_VERSION = '1.1'
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def __init__(self, topic):
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super(AgentNotifierApi, self).__init__(
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topic=topic, default_version=self.BASE_RPC_API_VERSION)
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self.topic_network_delete = topics.get_topic_name(topic,
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topics.NETWORK,
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topics.DELETE)
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self.topic_port_update = topics.get_topic_name(topic,
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topics.PORT,
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topics.UPDATE)
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def network_delete(self, context, network_id):
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self.fanout_cast(context,
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self.make_msg('network_delete',
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network_id=network_id),
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topic=self.topic_network_delete)
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def port_update(self, context, port, network_type, segmentation_id,
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physical_network):
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self.fanout_cast(context,
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self.make_msg('port_update',
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port=port,
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network_type=network_type,
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segmentation_id=segmentation_id,
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physical_network=physical_network),
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topic=self.topic_port_update)
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