8a4c8da4bb
This commit makes sure that the plugin exposes right status in a response body, and does not overwrite ERROR status until another operation to the backend has succeeded. This commit also changes NEC Plguin to use neutron constants instead of OperationalStatus defined in this plugin. Fixes: bug #1211319 Change-Id: Ic61b8e1b9d3f6c2be9567dd5a4606aa6d439c564
551 lines
24 KiB
Python
551 lines
24 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012-2013 NEC Corporation. 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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# @author: Ryota MIBU
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# @author: Akihiro MOTOKI
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from neutron.agent import securitygroups_rpc as sg_rpc
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from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api
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from neutron.api.rpc.agentnotifiers import l3_rpc_agent_api
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from neutron.common import constants as const
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from neutron.common import exceptions as q_exc
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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 agentschedulers_db
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from neutron.db import db_base_plugin_v2
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from neutron.db import dhcp_rpc_base
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from neutron.db import extraroute_db
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from neutron.db import l3_gwmode_db
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from neutron.db import l3_rpc_base
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from neutron.db import portbindings_base
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from neutron.db import quota_db # noqa
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from neutron.db import securitygroups_rpc_base as sg_db_rpc
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from neutron.extensions import portbindings
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from neutron.openstack.common import importutils
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from neutron.openstack.common import log as logging
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from neutron.openstack.common import rpc
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from neutron.openstack.common.rpc import proxy
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from neutron.openstack.common import uuidutils
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from neutron.plugins.nec.common import config
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from neutron.plugins.nec.common import exceptions as nexc
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from neutron.plugins.nec.db import api as ndb
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from neutron.plugins.nec import ofc_manager
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from neutron.plugins.nec import packet_filter
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LOG = logging.getLogger(__name__)
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class NECPluginV2(db_base_plugin_v2.NeutronDbPluginV2,
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extraroute_db.ExtraRoute_db_mixin,
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l3_gwmode_db.L3_NAT_db_mixin,
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sg_db_rpc.SecurityGroupServerRpcMixin,
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agentschedulers_db.L3AgentSchedulerDbMixin,
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agentschedulers_db.DhcpAgentSchedulerDbMixin,
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packet_filter.PacketFilterMixin,
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portbindings_base.PortBindingBaseMixin):
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"""NECPluginV2 controls an OpenFlow Controller.
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The Neutron NECPluginV2 maps L2 logical networks to L2 virtualized networks
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on an OpenFlow enabled network. An OpenFlow Controller (OFC) provides
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L2 network isolation without VLAN and this plugin controls the OFC.
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NOTE: This is for Neutron API V2. Codes for V1.0 and V1.1 are available
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at https://github.com/nec-openstack/neutron-openflow-plugin .
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The port binding extension enables an external application relay
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information to and from the plugin.
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"""
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_supported_extension_aliases = ["router", "ext-gw-mode", "quotas",
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"binding", "security-group",
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"extraroute", "agent",
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"l3_agent_scheduler",
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"dhcp_agent_scheduler",
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"packet-filter"]
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@property
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def supported_extension_aliases(self):
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if not hasattr(self, '_aliases'):
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aliases = self._supported_extension_aliases[:]
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sg_rpc.disable_security_group_extension_if_noop_driver(aliases)
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self.remove_packet_filter_extension_if_disabled(aliases)
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self._aliases = aliases
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return self._aliases
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def __init__(self):
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ndb.initialize()
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self.ofc = ofc_manager.OFCManager()
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self.base_binding_dict = self._get_base_binding_dict()
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portbindings_base.register_port_dict_function()
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# Set the plugin default extension path
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# if no api_extensions_path is specified.
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if not config.CONF.api_extensions_path:
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config.CONF.set_override('api_extensions_path',
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'neutron/plugins/nec/extensions')
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self.setup_rpc()
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self.network_scheduler = importutils.import_object(
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config.CONF.network_scheduler_driver
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)
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self.router_scheduler = importutils.import_object(
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config.CONF.router_scheduler_driver
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)
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def setup_rpc(self):
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self.topic = topics.PLUGIN
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self.conn = rpc.create_connection(new=True)
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self.notifier = NECPluginV2AgentNotifierApi(topics.AGENT)
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self.agent_notifiers[const.AGENT_TYPE_DHCP] = (
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dhcp_rpc_agent_api.DhcpAgentNotifyAPI()
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)
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self.agent_notifiers[const.AGENT_TYPE_L3] = (
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l3_rpc_agent_api.L3AgentNotify
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)
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# NOTE: callback_sg is referred to from the sg unit test.
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self.callback_sg = SecurityGroupServerRpcCallback()
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callbacks = [NECPluginV2RPCCallbacks(self),
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DhcpRpcCallback(), L3RpcCallback(),
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self.callback_sg,
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agents_db.AgentExtRpcCallback()]
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self.dispatcher = q_rpc.PluginRpcDispatcher(callbacks)
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self.conn.create_consumer(self.topic, self.dispatcher, fanout=False)
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# Consume from all consumers in a thread
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self.conn.consume_in_thread()
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def _update_resource_status(self, context, resource, id, status):
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"""Update status of specified resource."""
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request = {}
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request[resource] = dict(status=status)
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obj_updater = getattr(super(NECPluginV2, self), "update_%s" % resource)
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obj_updater(context, id, request)
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def activate_port_if_ready(self, context, port, network=None):
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"""Activate port by creating port on OFC if ready.
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Conditions to activate port on OFC are:
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* port admin_state is UP
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* network admin_state is UP
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* portinfo are available (to identify port on OFC)
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"""
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if not network:
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network = super(NECPluginV2, self).get_network(context,
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port['network_id'])
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if not port['admin_state_up']:
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LOG.debug(_("activate_port_if_ready(): skip, "
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"port.admin_state_up is False."))
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return port
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elif not network['admin_state_up']:
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LOG.debug(_("activate_port_if_ready(): skip, "
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"network.admin_state_up is False."))
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return port
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elif not ndb.get_portinfo(context.session, port['id']):
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LOG.debug(_("activate_port_if_ready(): skip, "
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"no portinfo for this port."))
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return port
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elif self.ofc.exists_ofc_port(context, port['id']):
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LOG.debug(_("activate_port_if_ready(): skip, "
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"ofc_port already exists."))
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return port
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try:
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self.ofc.create_ofc_port(context, port['id'], port)
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port_status = const.PORT_STATUS_ACTIVE
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except (nexc.OFCException, nexc.OFCConsistencyBroken) as exc:
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LOG.error(_("create_ofc_port() failed due to %s"), exc)
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port_status = const.PORT_STATUS_ERROR
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if port_status is not port['status']:
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self._update_resource_status(context, "port", port['id'],
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port_status)
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port['status'] = port_status
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return port
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def deactivate_port(self, context, port):
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"""Deactivate port by deleting port from OFC if exists."""
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if not self.ofc.exists_ofc_port(context, port['id']):
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LOG.debug(_("deactivate_port(): skip, ofc_port does not "
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"exist."))
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return port
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try:
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self.ofc.delete_ofc_port(context, port['id'], port)
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port_status = const.PORT_STATUS_DOWN
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except (nexc.OFCException, nexc.OFCConsistencyBroken) as exc:
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LOG.error(_("delete_ofc_port() failed due to %s"), exc)
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port_status = const.PORT_STATUS_ERROR
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if port_status is not port['status']:
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self._update_resource_status(context, "port", port['id'],
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port_status)
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port['status'] = port_status
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return port
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def _net_status(self, network):
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# NOTE: NEC Plugin accept admin_state_up. When it's False, this plugin
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# deactivate all ports on the network to drop all packet and show
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# status='DOWN' to users. But the network is kept defined on OFC.
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if network['network']['admin_state_up']:
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return const.NET_STATUS_ACTIVE
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else:
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return const.NET_STATUS_DOWN
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def create_network(self, context, network):
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"""Create a new network entry on DB, and create it on OFC."""
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LOG.debug(_("NECPluginV2.create_network() called, "
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"network=%s ."), network)
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tenant_id = self._get_tenant_id_for_create(context, network['network'])
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net_name = network['network']['name']
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net_id = uuidutils.generate_uuid()
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#set up default security groups
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self._ensure_default_security_group(context, tenant_id)
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network['network']['id'] = net_id
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network['network']['status'] = self._net_status(network)
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try:
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if not self.ofc.exists_ofc_tenant(context, tenant_id):
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self.ofc.create_ofc_tenant(context, tenant_id)
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self.ofc.create_ofc_network(context, tenant_id, net_id, net_name)
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except (nexc.OFCException, nexc.OFCConsistencyBroken) as exc:
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LOG.error(_("failed to create network id=%(id)s on "
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"OFC: %(exc)s"), {'id': net_id, 'exc': exc})
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network['network']['status'] = const.NET_STATUS_ERROR
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with context.session.begin(subtransactions=True):
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new_net = super(NECPluginV2, self).create_network(context, network)
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self._process_l3_create(context, new_net, network['network'])
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return new_net
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def update_network(self, context, id, network):
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"""Update network and handle resources associated with the network.
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Update network entry on DB. If 'admin_state_up' was changed, activate
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or deactivate ports and packetfilters associated with the network.
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"""
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LOG.debug(_("NECPluginV2.update_network() called, "
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"id=%(id)s network=%(network)s ."),
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{'id': id, 'network': network})
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if 'admin_state_up' in network['network']:
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network['network']['status'] = self._net_status(network)
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session = context.session
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with session.begin(subtransactions=True):
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old_net = super(NECPluginV2, self).get_network(context, id)
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new_net = super(NECPluginV2, self).update_network(context, id,
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network)
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self._process_l3_update(context, new_net, network['network'])
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changed = (old_net['admin_state_up'] is not new_net['admin_state_up'])
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if changed and not new_net['admin_state_up']:
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# disable all active ports of the network
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filters = dict(network_id=[id], status=[const.PORT_STATUS_ACTIVE])
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ports = super(NECPluginV2, self).get_ports(context,
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filters=filters)
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for port in ports:
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self.deactivate_port(context, port)
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elif changed and new_net['admin_state_up']:
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# enable ports of the network
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filters = dict(network_id=[id], status=[const.PORT_STATUS_DOWN],
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admin_state_up=[True])
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ports = super(NECPluginV2, self).get_ports(context,
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filters=filters)
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for port in ports:
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self.activate_port_if_ready(context, port, new_net)
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return new_net
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def delete_network(self, context, id):
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"""Delete network and packet_filters associated with the network.
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Delete network entry from DB and OFC. Then delete packet_filters
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associated with the network. If the network is the last resource
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of the tenant, delete unnessary ofc_tenant.
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"""
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LOG.debug(_("NECPluginV2.delete_network() called, id=%s ."), id)
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net = super(NECPluginV2, self).get_network(context, id)
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tenant_id = net['tenant_id']
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ports = self.get_ports(context, filters={'network_id': [id]})
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# check if there are any tenant owned ports in-use
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only_auto_del = all(p['device_owner'] in
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db_base_plugin_v2.AUTO_DELETE_PORT_OWNERS
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for p in ports)
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if not only_auto_del:
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raise q_exc.NetworkInUse(net_id=id)
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# Make sure auto-delete ports on OFC are deleted.
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_error_ports = []
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for port in ports:
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port = self.deactivate_port(context, port)
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if port['status'] == const.PORT_STATUS_ERROR:
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_error_ports.append(port['id'])
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if _error_ports:
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reason = (_("Failed to delete port(s)=%s from OFC.") %
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','.join(_error_ports))
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raise nexc.OFCException(reason=reason)
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# delete all packet_filters of the network
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if self.packet_filter_enabled:
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filters = dict(network_id=[id])
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pfs = self.get_packet_filters(context, filters=filters)
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for pf in pfs:
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self.delete_packet_filter(context, pf['id'])
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try:
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# 'net' parameter is required to lookup old OFC mapping
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self.ofc.delete_ofc_network(context, id, net)
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except (nexc.OFCException, nexc.OFCConsistencyBroken) as exc:
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reason = _("delete_network() failed due to %s") % exc
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LOG.error(reason)
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self._update_resource_status(context, "network", net['id'],
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const.NET_STATUS_ERROR)
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raise
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super(NECPluginV2, self).delete_network(context, id)
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# delete unnessary ofc_tenant
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filters = dict(tenant_id=[tenant_id])
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nets = super(NECPluginV2, self).get_networks(context, filters=filters)
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if not nets:
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try:
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self.ofc.delete_ofc_tenant(context, tenant_id)
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except (nexc.OFCException, nexc.OFCConsistencyBroken) as exc:
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reason = _("delete_ofc_tenant() failed due to %s") % exc
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LOG.warn(reason)
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def _get_base_binding_dict(self):
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binding = {
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portbindings.VIF_TYPE: portbindings.VIF_TYPE_OVS,
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portbindings.CAPABILITIES: {
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portbindings.CAP_PORT_FILTER:
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'security-group' in self.supported_extension_aliases}}
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return binding
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def create_port(self, context, port):
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"""Create a new port entry on DB, then try to activate it."""
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LOG.debug(_("NECPluginV2.create_port() called, port=%s ."), port)
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port['port']['status'] = const.PORT_STATUS_DOWN
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port_data = port['port']
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with context.session.begin(subtransactions=True):
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self._ensure_default_security_group_on_port(context, port)
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sgids = self._get_security_groups_on_port(context, port)
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port = super(NECPluginV2, self).create_port(context, port)
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self._process_portbindings_create_and_update(context,
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port_data,
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port)
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self._process_port_create_security_group(
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context, port, sgids)
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self.notify_security_groups_member_updated(context, port)
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return self.activate_port_if_ready(context, port)
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def update_port(self, context, id, port):
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"""Update port, and handle packetfilters associated with the port.
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Update network entry on DB. If admin_state_up was changed, activate
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or deactivate the port and packetfilters associated with it.
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"""
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LOG.debug(_("NECPluginV2.update_port() called, "
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"id=%(id)s port=%(port)s ."),
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{'id': id, 'port': port})
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need_port_update_notify = False
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with context.session.begin(subtransactions=True):
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old_port = super(NECPluginV2, self).get_port(context, id)
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new_port = super(NECPluginV2, self).update_port(context, id, port)
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self._process_portbindings_create_and_update(context,
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port['port'],
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new_port)
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need_port_update_notify = self.update_security_group_on_port(
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context, id, port, old_port, new_port)
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need_port_update_notify |= self.is_security_group_member_updated(
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context, old_port, new_port)
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if need_port_update_notify:
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self.notifier.port_update(context, new_port)
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changed = (old_port['admin_state_up'] != new_port['admin_state_up'])
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if changed:
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if new_port['admin_state_up']:
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new_port = self.activate_port_if_ready(context, new_port)
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else:
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new_port = self.deactivate_port(context, new_port)
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return new_port
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def delete_port(self, context, id, l3_port_check=True):
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"""Delete port and packet_filters associated with the port."""
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LOG.debug(_("NECPluginV2.delete_port() called, id=%s ."), id)
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# ext_sg.SECURITYGROUPS attribute for the port is required
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# since notifier.security_groups_member_updated() need the attribute.
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# Thus we need to call self.get_port() instead of super().get_port()
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port = self.get_port(context, id)
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port = self.deactivate_port(context, port)
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if port['status'] == const.PORT_STATUS_ERROR:
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reason = _("Failed to delete port=%s from OFC.") % id
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raise nexc.OFCException(reason=reason)
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# delete all packet_filters of the port
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if self.packet_filter_enabled:
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filters = dict(port_id=[id])
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pfs = self.get_packet_filters(context, filters=filters)
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for packet_filter in pfs:
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self.delete_packet_filter(context, packet_filter['id'])
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# if needed, check to see if this is a port owned by
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# and l3-router. If so, we should prevent deletion.
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if l3_port_check:
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self.prevent_l3_port_deletion(context, id)
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with context.session.begin(subtransactions=True):
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self.disassociate_floatingips(context, id)
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self._delete_port_security_group_bindings(context, id)
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super(NECPluginV2, self).delete_port(context, id)
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self.notify_security_groups_member_updated(context, port)
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class NECPluginV2AgentNotifierApi(proxy.RpcProxy,
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sg_rpc.SecurityGroupAgentRpcApiMixin):
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'''RPC API for NEC plugin agent.'''
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BASE_RPC_API_VERSION = '1.0'
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def __init__(self, topic):
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super(NECPluginV2AgentNotifierApi, self).__init__(
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topic=topic, default_version=self.BASE_RPC_API_VERSION)
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self.topic_port_update = topics.get_topic_name(
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topic, topics.PORT, topics.UPDATE)
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def port_update(self, context, port):
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self.fanout_cast(context,
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self.make_msg('port_update',
|
|
port=port),
|
|
topic=self.topic_port_update)
|
|
|
|
|
|
class DhcpRpcCallback(dhcp_rpc_base.DhcpRpcCallbackMixin):
|
|
# DhcpPluginApi BASE_RPC_API_VERSION
|
|
RPC_API_VERSION = '1.1'
|
|
|
|
|
|
class L3RpcCallback(l3_rpc_base.L3RpcCallbackMixin):
|
|
# L3PluginApi BASE_RPC_API_VERSION
|
|
RPC_API_VERSION = '1.0'
|
|
|
|
|
|
class SecurityGroupServerRpcCallback(
|
|
sg_db_rpc.SecurityGroupServerRpcCallbackMixin):
|
|
|
|
RPC_API_VERSION = sg_rpc.SG_RPC_VERSION
|
|
|
|
@staticmethod
|
|
def get_port_from_device(device):
|
|
port = ndb.get_port_from_device(device)
|
|
if port:
|
|
port['device'] = device
|
|
LOG.debug(_("NECPluginV2RPCCallbacks.get_port_from_device() called, "
|
|
"device=%(device)s => %(ret)s."),
|
|
{'device': device, 'ret': port})
|
|
return port
|
|
|
|
|
|
class NECPluginV2RPCCallbacks(object):
|
|
|
|
RPC_API_VERSION = '1.0'
|
|
|
|
def __init__(self, plugin):
|
|
self.plugin = plugin
|
|
|
|
def create_rpc_dispatcher(self):
|
|
'''Get the rpc dispatcher for this manager.
|
|
|
|
If a manager would like to set an rpc API version, or support more than
|
|
one class as the target of rpc messages, override this method.
|
|
'''
|
|
return q_rpc.PluginRpcDispatcher([self])
|
|
|
|
def update_ports(self, rpc_context, **kwargs):
|
|
"""Update ports' information and activate/deavtivate them.
|
|
|
|
Expected input format is:
|
|
{'topic': 'q-agent-notifier',
|
|
'agent_id': 'nec-q-agent.' + <hostname>,
|
|
'datapath_id': <datapath_id of br-int on remote host>,
|
|
'port_added': [<new PortInfo>,...],
|
|
'port_removed': [<removed Port ID>,...]}
|
|
"""
|
|
LOG.debug(_("NECPluginV2RPCCallbacks.update_ports() called, "
|
|
"kwargs=%s ."), kwargs)
|
|
datapath_id = kwargs['datapath_id']
|
|
session = rpc_context.session
|
|
for p in kwargs.get('port_added', []):
|
|
id = p['id']
|
|
portinfo = ndb.get_portinfo(session, id)
|
|
if portinfo:
|
|
if (portinfo.datapath_id == datapath_id and
|
|
portinfo.port_no == p['port_no']):
|
|
LOG.debug(_("update_ports(): ignore unchanged portinfo in "
|
|
"port_added message (port_id=%s)."), id)
|
|
continue
|
|
ndb.del_portinfo(session, id)
|
|
ndb.add_portinfo(session, id, datapath_id, p['port_no'],
|
|
mac=p.get('mac', ''))
|
|
port = self._get_port(rpc_context, id)
|
|
if port:
|
|
# NOTE: Make sure that packet filters on this port exist while
|
|
# the port is active to avoid unexpected packet transfer.
|
|
if portinfo:
|
|
self.plugin.deactivate_port(rpc_context, port)
|
|
self.plugin.deactivate_packet_filters_by_port(rpc_context,
|
|
id)
|
|
self.plugin.activate_packet_filters_by_port(rpc_context, id)
|
|
self.plugin.activate_port_if_ready(rpc_context, port)
|
|
for id in kwargs.get('port_removed', []):
|
|
portinfo = ndb.get_portinfo(session, id)
|
|
if not portinfo:
|
|
LOG.debug(_("update_ports(): ignore port_removed message "
|
|
"due to portinfo for port_id=%s was not "
|
|
"registered"), id)
|
|
continue
|
|
if portinfo.datapath_id != datapath_id:
|
|
LOG.debug(_("update_ports(): ignore port_removed message "
|
|
"received from different host "
|
|
"(registered_datapath_id=%(registered)s, "
|
|
"received_datapath_id=%(received)s)."),
|
|
{'registered': portinfo.datapath_id,
|
|
'received': datapath_id})
|
|
continue
|
|
ndb.del_portinfo(session, id)
|
|
port = self._get_port(rpc_context, id)
|
|
if port:
|
|
self.plugin.deactivate_port(rpc_context, port)
|
|
self.plugin.deactivate_packet_filters_by_port(rpc_context, id)
|
|
|
|
def _get_port(self, context, port_id):
|
|
try:
|
|
return self.plugin.get_port(context, port_id)
|
|
except q_exc.PortNotFound:
|
|
return None
|