fcf69f63ec
With the current Neutron implementation, a subnet cannot be deleted until all associated IP addresses have been remove from ports (via port update) or the associated ports/VMs have been deleted. In the case of SLAAC-enabled subnets, however, it's not feasible to require removal of SLAAC-generated addresses individually from each associated port before deleting a subnet because of the multicast nature of RA messages. For SLAAC-enabled subnets, the processing of subnet delete requests needs to be changed so that these subnets will be allowed to be deleted, and all ports get disassociated from their corresponding SLAAC IP address, when there are ports existing on the SLAAC subnet. Change-Id: I281f5a1553248e09174dc49d0a42aef4b5c44bee Closes-Bug: 1393435
1208 lines
56 KiB
Python
1208 lines
56 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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import contextlib
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from eventlet import greenthread
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from oslo.config import cfg
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from oslo.db import exception as os_db_exception
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from oslo.serialization import jsonutils
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from sqlalchemy import exc as sql_exc
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from sqlalchemy.orm import exc as sa_exc
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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.handlers import dhcp_rpc
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from neutron.api.rpc.handlers import dvr_rpc
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from neutron.api.rpc.handlers import metadata_rpc
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from neutron.api.rpc.handlers import securitygroups_rpc
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from neutron.api.v2 import attributes
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from neutron.common import constants as const
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from neutron.common import exceptions as exc
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from neutron.common import ipv6_utils
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from neutron.common import rpc as n_rpc
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from neutron.common import topics
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from neutron.common import utils
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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 allowedaddresspairs_db as addr_pair_db
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from neutron.db import api as db_api
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from neutron.db import db_base_plugin_v2
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from neutron.db import dvr_mac_db
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from neutron.db import external_net_db
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from neutron.db import extradhcpopt_db
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from neutron.db import models_v2
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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 allowedaddresspairs as addr_pair
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from neutron.extensions import extra_dhcp_opt as edo_ext
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from neutron.extensions import l3agentscheduler
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from neutron.extensions import portbindings
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from neutron.extensions import providernet as provider
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from neutron import manager
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from neutron.openstack.common import excutils
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from neutron.openstack.common.gettextutils import _LI
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from neutron.openstack.common import importutils
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from neutron.openstack.common import lockutils
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from neutron.openstack.common import log
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from neutron.openstack.common import uuidutils
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from neutron.plugins.common import constants as service_constants
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from neutron.plugins.ml2.common import exceptions as ml2_exc
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from neutron.plugins.ml2 import config # noqa
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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 import driver_context
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from neutron.plugins.ml2 import managers
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from neutron.plugins.ml2 import models
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from neutron.plugins.ml2 import rpc
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LOG = log.getLogger(__name__)
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MAX_BIND_TRIES = 10
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# REVISIT(rkukura): Move this and other network_type constants to
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# providernet.py?
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TYPE_MULTI_SEGMENT = 'multi-segment'
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class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
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dvr_mac_db.DVRDbMixin,
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external_net_db.External_net_db_mixin,
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sg_db_rpc.SecurityGroupServerRpcMixin,
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agentschedulers_db.DhcpAgentSchedulerDbMixin,
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addr_pair_db.AllowedAddressPairsMixin,
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extradhcpopt_db.ExtraDhcpOptMixin):
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"""Implement the Neutron L2 abstractions using modules.
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Ml2Plugin is a Neutron plugin based on separately extensible sets
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of network types and mechanisms for connecting to networks of
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those types. The network types and mechanisms are implemented as
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drivers loaded via Python entry points. Networks can be made up of
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multiple segments (not yet fully implemented).
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"""
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# This attribute specifies whether the plugin supports or not
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# bulk/pagination/sorting operations. Name mangling is used in
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# order to ensure it is qualified by class
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__native_bulk_support = True
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__native_pagination_support = True
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__native_sorting_support = True
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# List of supported extensions
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_supported_extension_aliases = ["provider", "external-net", "binding",
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"quotas", "security-group", "agent",
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"dhcp_agent_scheduler",
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"multi-provider", "allowed-address-pairs",
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"extra_dhcp_opt"]
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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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aliases += self.extension_manager.extension_aliases()
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sg_rpc.disable_security_group_extension_by_config(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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# First load drivers, then initialize DB, then initialize drivers
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self.type_manager = managers.TypeManager()
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self.extension_manager = managers.ExtensionManager()
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self.mechanism_manager = managers.MechanismManager()
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super(Ml2Plugin, self).__init__()
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self.type_manager.initialize()
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self.extension_manager.initialize()
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self.mechanism_manager.initialize()
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# bulk support depends on the underlying drivers
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self.__native_bulk_support = self.mechanism_manager.native_bulk_support
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self._setup_rpc()
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# REVISIT(rkukura): Use stevedore for these?
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self.network_scheduler = importutils.import_object(
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cfg.CONF.network_scheduler_driver
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)
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LOG.info(_("Modular L2 Plugin initialization complete"))
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def _setup_rpc(self):
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self.notifier = rpc.AgentNotifierApi(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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def start_rpc_listeners(self):
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self.endpoints = [rpc.RpcCallbacks(self.notifier, self.type_manager),
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securitygroups_rpc.SecurityGroupServerRpcCallback(),
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dvr_rpc.DVRServerRpcCallback(),
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dhcp_rpc.DhcpRpcCallback(),
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agents_db.AgentExtRpcCallback(),
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metadata_rpc.MetadataRpcCallback()]
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self.topic = topics.PLUGIN
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self.conn = n_rpc.create_connection(new=True)
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self.conn.create_consumer(self.topic, self.endpoints,
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fanout=False)
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return self.conn.consume_in_threads()
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def _filter_nets_provider(self, context, nets, filters):
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# TODO(rkukura): Implement filtering.
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return nets
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def _notify_l3_agent_new_port(self, context, port):
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if not port:
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return
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# Whenever a DVR serviceable port comes up on a
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# node, it has to be communicated to the L3 Plugin
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# and agent for creating the respective namespaces.
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if (utils.is_dvr_serviced(port['device_owner'])):
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l3plugin = manager.NeutronManager.get_service_plugins().get(
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service_constants.L3_ROUTER_NAT)
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if (utils.is_extension_supported(
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l3plugin, const.L3_DISTRIBUTED_EXT_ALIAS)):
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l3plugin.dvr_update_router_addvm(context, port)
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def _get_host_port_if_changed(self, mech_context, attrs):
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binding = mech_context._binding
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host = attrs and attrs.get(portbindings.HOST_ID)
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if (attributes.is_attr_set(host) and binding.host != host):
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return mech_context.current
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def _process_port_binding(self, mech_context, attrs):
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binding = mech_context._binding
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port = mech_context.current
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changes = False
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host = attrs and attrs.get(portbindings.HOST_ID)
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if (attributes.is_attr_set(host) and
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binding.host != host):
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binding.host = host
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changes = True
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vnic_type = attrs and attrs.get(portbindings.VNIC_TYPE)
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if (attributes.is_attr_set(vnic_type) and
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binding.vnic_type != vnic_type):
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binding.vnic_type = vnic_type
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changes = True
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# treat None as clear of profile.
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profile = None
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if attrs and portbindings.PROFILE in attrs:
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profile = attrs.get(portbindings.PROFILE) or {}
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if profile not in (None, attributes.ATTR_NOT_SPECIFIED,
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self._get_profile(binding)):
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binding.profile = jsonutils.dumps(profile)
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if len(binding.profile) > models.BINDING_PROFILE_LEN:
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msg = _("binding:profile value too large")
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raise exc.InvalidInput(error_message=msg)
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changes = True
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# Unbind the port if needed.
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if changes:
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binding.vif_type = portbindings.VIF_TYPE_UNBOUND
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binding.vif_details = ''
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binding.driver = None
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binding.segment = None
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if port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE:
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binding.vif_type = portbindings.VIF_TYPE_DISTRIBUTED
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binding.vif_details = ''
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binding.driver = None
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binding.segment = None
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binding.host = ''
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self._update_port_dict_binding(port, binding)
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return changes
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def _bind_port_if_needed(self, context, allow_notify=False,
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need_notify=False):
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plugin_context = context._plugin_context
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port_id = context._port['id']
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# Since the mechanism driver bind_port() calls must be made
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# outside a DB transaction locking the port state, it is
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# possible (but unlikely) that the port's state could change
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# concurrently while these calls are being made. If another
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# thread or process succeeds in binding the port before this
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# thread commits its results, the already committed results are
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# used. If attributes such as binding:host_id,
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# binding:profile, or binding:vnic_type are updated
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# concurrently, this loop retries binding using the new
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# values.
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count = 0
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while True:
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# First, determine whether it is necessary and possible to
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# bind the port.
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binding = context._binding
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if (binding.vif_type != portbindings.VIF_TYPE_UNBOUND
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or not binding.host):
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# We either don't need to bind the port, or can't, so
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# notify if needed and return.
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if allow_notify and need_notify:
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self._notify_port_updated(context)
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return context
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# Limit binding attempts to avoid any possibility of
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# infinite looping and to ensure an error is logged
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# instead. This does not need to be tunable because no
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# more than a couple attempts should ever be required in
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# normal operation. Log at info level if not 1st attempt.
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count += 1
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if count > MAX_BIND_TRIES:
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LOG.error(_("Failed to commit binding results for %(port)s "
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"after %(max)s tries"),
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{'port': port_id, 'max': MAX_BIND_TRIES})
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return context
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if count > 1:
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greenthread.sleep(0) # yield
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LOG.info(_("Attempt %(count)s to bind port %(port)s"),
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{'count': count, 'port': port_id})
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# The port isn't already bound and the necessary
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# information is available, so attempt to bind the port.
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bind_context = self._bind_port(context)
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# Now try to commit result of attempting to bind the port.
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new_context, did_commit = self._commit_port_binding(
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plugin_context, port_id, binding, bind_context)
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if not new_context:
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# The port has been deleted concurrently, so just
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# return the unbound result from the initial
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# transaction that completed before the deletion.
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LOG.debug("Port %s has been deleted concurrently",
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port_id)
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return context
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# Need to notify if we succeed and our results were
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# committed.
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if did_commit and (new_context._binding.vif_type !=
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portbindings.VIF_TYPE_BINDING_FAILED):
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need_notify = True
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context = new_context
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def _bind_port(self, orig_context):
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# Construct a new PortContext from the one from the previous
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# transaction.
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port = orig_context._port
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orig_binding = orig_context._binding
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new_binding = models.PortBinding(
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host=orig_binding.host,
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vnic_type=orig_binding.vnic_type,
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profile=orig_binding.profile,
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vif_type=portbindings.VIF_TYPE_UNBOUND,
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vif_details=''
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)
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self._update_port_dict_binding(port, new_binding)
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new_context = driver_context.PortContext(
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self, orig_context._plugin_context, port,
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orig_context._network_context._network, new_binding)
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# Attempt to bind the port and return the context with the
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# result.
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self.mechanism_manager.bind_port(new_context)
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return new_context
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def _commit_port_binding(self, plugin_context, port_id, orig_binding,
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new_context):
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session = plugin_context.session
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new_binding = new_context._binding
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# After we've attempted to bind the port, we begin a
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# transaction, get the current port state, and decide whether
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# to commit the binding results.
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#
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# REVISIT: Serialize this operation with a semaphore to
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# prevent deadlock waiting to acquire a DB lock held by
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# another thread in the same process, leading to 'lock wait
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# timeout' errors.
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with contextlib.nested(lockutils.lock('db-access'),
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session.begin(subtransactions=True)):
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# Get the current port state and build a new PortContext
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# reflecting this state as original state for subsequent
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# mechanism driver update_port_*commit() calls.
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port_db, cur_binding = db.get_locked_port_and_binding(session,
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port_id)
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if not port_db:
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# The port has been deleted concurrently.
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return (None, None)
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oport = self._make_port_dict(port_db)
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port = self._make_port_dict(port_db)
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network = self.get_network(plugin_context, port['network_id'])
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cur_context = driver_context.PortContext(
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self, plugin_context, port, network, cur_binding,
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original_port=oport)
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# Commit our binding results only if port has not been
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# successfully bound concurrently by another thread or
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# process and no binding inputs have been changed.
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commit = ((cur_binding.vif_type in
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[portbindings.VIF_TYPE_UNBOUND,
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portbindings.VIF_TYPE_BINDING_FAILED]) and
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orig_binding.host == cur_binding.host and
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orig_binding.vnic_type == cur_binding.vnic_type and
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orig_binding.profile == cur_binding.profile)
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if commit:
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# Update the port's binding state with our binding
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# results.
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cur_binding.vif_type = new_binding.vif_type
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cur_binding.vif_details = new_binding.vif_details
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cur_binding.driver = new_binding.driver
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cur_binding.segment = new_binding.segment
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# Update PortContext's port dictionary to reflect the
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# updated binding state.
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self._update_port_dict_binding(port, cur_binding)
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# Update the port status if requested by the bound driver.
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if new_binding.segment and new_context._new_port_status:
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port_db.status = new_context._new_port_status
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port['status'] = new_context._new_port_status
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# Call the mechanism driver precommit methods, commit
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# the results, and call the postcommit methods.
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self.mechanism_manager.update_port_precommit(cur_context)
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if commit:
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self.mechanism_manager.update_port_postcommit(cur_context)
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# Continue, using the port state as of the transaction that
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# just finished, whether that transaction committed new
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# results or discovered concurrent port state changes.
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return (cur_context, commit)
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def _update_port_dict_binding(self, port, binding):
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port[portbindings.HOST_ID] = binding.host
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port[portbindings.VNIC_TYPE] = binding.vnic_type
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port[portbindings.PROFILE] = self._get_profile(binding)
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port[portbindings.VIF_TYPE] = binding.vif_type
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port[portbindings.VIF_DETAILS] = self._get_vif_details(binding)
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def _get_vif_details(self, binding):
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if binding.vif_details:
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try:
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return jsonutils.loads(binding.vif_details)
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except Exception:
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LOG.error(_("Serialized vif_details DB value '%(value)s' "
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"for port %(port)s is invalid"),
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{'value': binding.vif_details,
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'port': binding.port_id})
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return {}
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def _get_profile(self, binding):
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if binding.profile:
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try:
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return jsonutils.loads(binding.profile)
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except Exception:
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LOG.error(_("Serialized profile DB value '%(value)s' for "
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"port %(port)s is invalid"),
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{'value': binding.profile,
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'port': binding.port_id})
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return {}
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def _ml2_extend_port_dict_binding(self, port_res, port_db):
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# None when called during unit tests for other plugins.
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if port_db.port_binding:
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self._update_port_dict_binding(port_res, port_db.port_binding)
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db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
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attributes.PORTS, ['_ml2_extend_port_dict_binding'])
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# Register extend dict methods for network and port resources.
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# Each mechanism driver that supports extend attribute for the resources
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# can add those attribute to the result.
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db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
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attributes.NETWORKS, ['_ml2_md_extend_network_dict'])
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db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
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attributes.PORTS, ['_ml2_md_extend_port_dict'])
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db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
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attributes.SUBNETS, ['_ml2_md_extend_subnet_dict'])
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def _ml2_md_extend_network_dict(self, result, netdb):
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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self.extension_manager.extend_network_dict(session, result)
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def _ml2_md_extend_port_dict(self, result, portdb):
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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self.extension_manager.extend_port_dict(session, result)
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def _ml2_md_extend_subnet_dict(self, result, subnetdb):
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session = db_api.get_session()
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with session.begin(subtransactions=True):
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self.extension_manager.extend_subnet_dict(session, result)
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# Note - The following hook methods have "ml2" in their names so
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# that they are not called twice during unit tests due to global
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# registration of hooks in portbindings_db.py used by other
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# plugins.
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|
|
def _ml2_port_model_hook(self, context, original_model, query):
|
|
query = query.outerjoin(models.PortBinding,
|
|
(original_model.id ==
|
|
models.PortBinding.port_id))
|
|
return query
|
|
|
|
def _ml2_port_result_filter_hook(self, query, filters):
|
|
values = filters and filters.get(portbindings.HOST_ID, [])
|
|
if not values:
|
|
return query
|
|
return query.filter(models.PortBinding.host.in_(values))
|
|
|
|
db_base_plugin_v2.NeutronDbPluginV2.register_model_query_hook(
|
|
models_v2.Port,
|
|
"ml2_port_bindings",
|
|
'_ml2_port_model_hook',
|
|
None,
|
|
'_ml2_port_result_filter_hook')
|
|
|
|
def _notify_port_updated(self, mech_context):
|
|
port = mech_context._port
|
|
segment = mech_context.bound_segment
|
|
if not segment:
|
|
# REVISIT(rkukura): This should notify agent to unplug port
|
|
network = mech_context.network.current
|
|
LOG.warning(_("In _notify_port_updated(), no bound segment for "
|
|
"port %(port_id)s on network %(network_id)s"),
|
|
{'port_id': port['id'],
|
|
'network_id': network['id']})
|
|
return
|
|
self.notifier.port_update(mech_context._plugin_context, port,
|
|
segment[api.NETWORK_TYPE],
|
|
segment[api.SEGMENTATION_ID],
|
|
segment[api.PHYSICAL_NETWORK])
|
|
|
|
# TODO(apech): Need to override bulk operations
|
|
|
|
def create_network(self, context, network):
|
|
net_data = network['network']
|
|
tenant_id = self._get_tenant_id_for_create(context, net_data)
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group(context, tenant_id)
|
|
result = super(Ml2Plugin, self).create_network(context, network)
|
|
self.extension_manager.process_create_network(session, net_data,
|
|
result)
|
|
self._process_l3_create(context, result, net_data)
|
|
net_data['id'] = result['id']
|
|
self.type_manager.create_network_segments(context, net_data,
|
|
tenant_id)
|
|
self.type_manager._extend_network_dict_provider(context, result)
|
|
mech_context = driver_context.NetworkContext(self, context,
|
|
result)
|
|
self.mechanism_manager.create_network_precommit(mech_context)
|
|
|
|
try:
|
|
self.mechanism_manager.create_network_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("mechanism_manager.create_network_postcommit "
|
|
"failed, deleting network '%s'"), result['id'])
|
|
self.delete_network(context, result['id'])
|
|
return result
|
|
|
|
def update_network(self, context, id, network):
|
|
provider._raise_if_updates_provider_attributes(network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
original_network = super(Ml2Plugin, self).get_network(context, id)
|
|
updated_network = super(Ml2Plugin, self).update_network(context,
|
|
id,
|
|
network)
|
|
self.extension_manager.process_update_network(session, network,
|
|
original_network)
|
|
self._process_l3_update(context, updated_network,
|
|
network['network'])
|
|
self.type_manager._extend_network_dict_provider(context,
|
|
updated_network)
|
|
mech_context = driver_context.NetworkContext(
|
|
self, context, updated_network,
|
|
original_network=original_network)
|
|
self.mechanism_manager.update_network_precommit(mech_context)
|
|
|
|
# TODO(apech) - handle errors raised by update_network, potentially
|
|
# by re-calling update_network with the previous attributes. For
|
|
# now the error is propogated to the caller, which is expected to
|
|
# either undo/retry the operation or delete the resource.
|
|
self.mechanism_manager.update_network_postcommit(mech_context)
|
|
return updated_network
|
|
|
|
def get_network(self, context, id, fields=None):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
result = super(Ml2Plugin, self).get_network(context, id, None)
|
|
self.type_manager._extend_network_dict_provider(context, result)
|
|
|
|
return self._fields(result, fields)
|
|
|
|
def get_networks(self, context, filters=None, fields=None,
|
|
sorts=None, limit=None, marker=None, page_reverse=False):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
nets = super(Ml2Plugin,
|
|
self).get_networks(context, filters, None, sorts,
|
|
limit, marker, page_reverse)
|
|
for net in nets:
|
|
self.type_manager._extend_network_dict_provider(context, net)
|
|
|
|
nets = self._filter_nets_provider(context, nets, filters)
|
|
nets = self._filter_nets_l3(context, nets, filters)
|
|
|
|
return [self._fields(net, fields) for net in nets]
|
|
|
|
def delete_network(self, context, id):
|
|
# REVISIT(rkukura) The super(Ml2Plugin, self).delete_network()
|
|
# function is not used because it auto-deletes ports and
|
|
# subnets from the DB without invoking the derived class's
|
|
# delete_port() or delete_subnet(), preventing mechanism
|
|
# drivers from being called. This approach should be revisited
|
|
# when the API layer is reworked during icehouse.
|
|
|
|
LOG.debug(_("Deleting network %s"), id)
|
|
session = context.session
|
|
while True:
|
|
try:
|
|
# REVISIT(rkukura): Its not clear that
|
|
# with_lockmode('update') is really needed in this
|
|
# transaction, and if not, the semaphore can also be
|
|
# removed.
|
|
#
|
|
# REVISIT: Serialize this operation with a semaphore
|
|
# to prevent deadlock waiting to acquire a DB lock
|
|
# held by another thread in the same process, leading
|
|
# to 'lock wait timeout' errors.
|
|
#
|
|
# Process L3 first, since, depending on the L3 plugin, it may
|
|
# involve locking the db-access semaphore, sending RPC
|
|
# notifications, and/or calling delete_port on this plugin.
|
|
# Additionally, a rollback may not be enough to undo the
|
|
# deletion of a floating IP with certain L3 backends.
|
|
self._process_l3_delete(context, id)
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
# Get ports to auto-delete.
|
|
ports = (session.query(models_v2.Port).
|
|
enable_eagerloads(False).
|
|
filter_by(network_id=id).
|
|
with_lockmode('update').all())
|
|
LOG.debug(_("Ports to auto-delete: %s"), ports)
|
|
only_auto_del = all(p.device_owner
|
|
in db_base_plugin_v2.
|
|
AUTO_DELETE_PORT_OWNERS
|
|
for p in ports)
|
|
if not only_auto_del:
|
|
LOG.debug(_("Tenant-owned ports exist"))
|
|
raise exc.NetworkInUse(net_id=id)
|
|
|
|
# Get subnets to auto-delete.
|
|
subnets = (session.query(models_v2.Subnet).
|
|
enable_eagerloads(False).
|
|
filter_by(network_id=id).
|
|
with_lockmode('update').all())
|
|
LOG.debug(_("Subnets to auto-delete: %s"), subnets)
|
|
|
|
if not (ports or subnets):
|
|
network = self.get_network(context, id)
|
|
mech_context = driver_context.NetworkContext(self,
|
|
context,
|
|
network)
|
|
self.mechanism_manager.delete_network_precommit(
|
|
mech_context)
|
|
|
|
self.type_manager.release_network_segments(session, id)
|
|
record = self._get_network(context, id)
|
|
LOG.debug(_("Deleting network record %s"), record)
|
|
session.delete(record)
|
|
|
|
# The segment records are deleted via cascade from the
|
|
# network record, so explicit removal is not necessary.
|
|
LOG.debug(_("Committing transaction"))
|
|
break
|
|
except os_db_exception.DBError as e:
|
|
with excutils.save_and_reraise_exception() as ctxt:
|
|
if isinstance(e.inner_exception, sql_exc.IntegrityError):
|
|
ctxt.reraise = False
|
|
msg = _("A concurrent port creation has occurred")
|
|
LOG.warning(msg)
|
|
continue
|
|
|
|
for port in ports:
|
|
try:
|
|
self.delete_port(context, port.id)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.exception(_("Exception auto-deleting port %s"),
|
|
port.id)
|
|
|
|
for subnet in subnets:
|
|
try:
|
|
self.delete_subnet(context, subnet.id)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.exception(_("Exception auto-deleting subnet %s"),
|
|
subnet.id)
|
|
|
|
try:
|
|
self.mechanism_manager.delete_network_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
# TODO(apech) - One or more mechanism driver failed to
|
|
# delete the network. Ideally we'd notify the caller of
|
|
# the fact that an error occurred.
|
|
LOG.error(_("mechanism_manager.delete_network_postcommit failed"))
|
|
self.notifier.network_delete(context, id)
|
|
|
|
def create_subnet(self, context, subnet):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
result = super(Ml2Plugin, self).create_subnet(context, subnet)
|
|
self.extension_manager.process_create_subnet(session, subnet,
|
|
result)
|
|
mech_context = driver_context.SubnetContext(self, context, result)
|
|
self.mechanism_manager.create_subnet_precommit(mech_context)
|
|
|
|
try:
|
|
self.mechanism_manager.create_subnet_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("mechanism_manager.create_subnet_postcommit "
|
|
"failed, deleting subnet '%s'"), result['id'])
|
|
self.delete_subnet(context, result['id'])
|
|
return result
|
|
|
|
def update_subnet(self, context, id, subnet):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
original_subnet = super(Ml2Plugin, self).get_subnet(context, id)
|
|
updated_subnet = super(Ml2Plugin, self).update_subnet(
|
|
context, id, subnet)
|
|
self.extension_manager.process_update_subnet(session, subnet,
|
|
original_subnet)
|
|
mech_context = driver_context.SubnetContext(
|
|
self, context, updated_subnet, original_subnet=original_subnet)
|
|
self.mechanism_manager.update_subnet_precommit(mech_context)
|
|
|
|
# TODO(apech) - handle errors raised by update_subnet, potentially
|
|
# by re-calling update_subnet with the previous attributes. For
|
|
# now the error is propogated to the caller, which is expected to
|
|
# either undo/retry the operation or delete the resource.
|
|
self.mechanism_manager.update_subnet_postcommit(mech_context)
|
|
return updated_subnet
|
|
|
|
def delete_subnet(self, context, id):
|
|
# REVISIT(rkukura) The super(Ml2Plugin, self).delete_subnet()
|
|
# function is not used because it deallocates the subnet's addresses
|
|
# from ports in the DB without invoking the derived class's
|
|
# update_port(), preventing mechanism drivers from being called.
|
|
# This approach should be revisited when the API layer is reworked
|
|
# during icehouse.
|
|
|
|
LOG.debug(_("Deleting subnet %s"), id)
|
|
session = context.session
|
|
while True:
|
|
# REVISIT: Serialize this operation with a semaphore to
|
|
# prevent deadlock waiting to acquire a DB lock held by
|
|
# another thread in the same process, leading to 'lock
|
|
# wait timeout' errors.
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
record = self._get_subnet(context, id)
|
|
subnet = self._make_subnet_dict(record, None)
|
|
# Get ports to auto-deallocate
|
|
allocated = (session.query(models_v2.IPAllocation).
|
|
filter_by(subnet_id=id).
|
|
join(models_v2.Port).
|
|
filter_by(network_id=subnet['network_id']).
|
|
with_lockmode('update').all())
|
|
LOG.debug(_("Ports to auto-deallocate: %s"), allocated)
|
|
only_auto_del = all(not a.port_id or
|
|
a.ports.device_owner in db_base_plugin_v2.
|
|
AUTO_DELETE_PORT_OWNERS or
|
|
ipv6_utils.is_slaac_subnet(subnet)
|
|
for a in allocated)
|
|
if not only_auto_del:
|
|
LOG.debug(_("Tenant-owned ports exist"))
|
|
raise exc.SubnetInUse(subnet_id=id)
|
|
|
|
if not allocated:
|
|
mech_context = driver_context.SubnetContext(self, context,
|
|
subnet)
|
|
self.mechanism_manager.delete_subnet_precommit(
|
|
mech_context)
|
|
|
|
LOG.debug(_("Deleting subnet record"))
|
|
session.delete(record)
|
|
|
|
LOG.debug(_("Committing transaction"))
|
|
break
|
|
|
|
for a in allocated:
|
|
if a.port_id:
|
|
# calling update_port() for each allocation to remove the
|
|
# IP from the port and call the MechanismDrivers
|
|
data = {'port':
|
|
{'fixed_ips': [{'subnet_id': ip.subnet_id,
|
|
'ip_address': ip.ip_address}
|
|
for ip in a.ports.fixed_ips
|
|
if ip.subnet_id != id]}}
|
|
try:
|
|
self.update_port(context, a.port_id, data)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.exception(_("Exception deleting fixed_ip from "
|
|
"port %s"), a.port_id)
|
|
session.delete(a)
|
|
|
|
try:
|
|
self.mechanism_manager.delete_subnet_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
# TODO(apech) - One or more mechanism driver failed to
|
|
# delete the subnet. Ideally we'd notify the caller of
|
|
# the fact that an error occurred.
|
|
LOG.error(_("mechanism_manager.delete_subnet_postcommit failed"))
|
|
|
|
def create_port(self, context, port):
|
|
attrs = port['port']
|
|
attrs['status'] = const.PORT_STATUS_DOWN
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group_on_port(context, port)
|
|
sgids = self._get_security_groups_on_port(context, port)
|
|
dhcp_opts = port['port'].get(edo_ext.EXTRADHCPOPTS, [])
|
|
result = super(Ml2Plugin, self).create_port(context, port)
|
|
self.extension_manager.process_create_port(session, attrs, result)
|
|
self._process_port_create_security_group(context, result, sgids)
|
|
network = self.get_network(context, result['network_id'])
|
|
binding = db.add_port_binding(session, result['id'])
|
|
mech_context = driver_context.PortContext(self, context, result,
|
|
network, binding)
|
|
new_host_port = self._get_host_port_if_changed(mech_context, attrs)
|
|
self._process_port_binding(mech_context, attrs)
|
|
|
|
result[addr_pair.ADDRESS_PAIRS] = (
|
|
self._process_create_allowed_address_pairs(
|
|
context, result,
|
|
attrs.get(addr_pair.ADDRESS_PAIRS)))
|
|
self._process_port_create_extra_dhcp_opts(context, result,
|
|
dhcp_opts)
|
|
self.mechanism_manager.create_port_precommit(mech_context)
|
|
|
|
# Notification must be sent after the above transaction is complete
|
|
self._notify_l3_agent_new_port(context, new_host_port)
|
|
|
|
try:
|
|
self.mechanism_manager.create_port_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("mechanism_manager.create_port_postcommit "
|
|
"failed, deleting port '%s'"), result['id'])
|
|
self.delete_port(context, result['id'])
|
|
|
|
# REVISIT(rkukura): Is there any point in calling this before
|
|
# a binding has been successfully established?
|
|
self.notify_security_groups_member_updated(context, result)
|
|
|
|
try:
|
|
bound_context = self._bind_port_if_needed(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("_bind_port_if_needed "
|
|
"failed, deleting port '%s'"), result['id'])
|
|
self.delete_port(context, result['id'])
|
|
return bound_context._port
|
|
|
|
def update_port(self, context, id, port):
|
|
attrs = port['port']
|
|
need_port_update_notify = False
|
|
|
|
session = context.session
|
|
|
|
# REVISIT: Serialize this operation with a semaphore to
|
|
# prevent deadlock waiting to acquire a DB lock held by
|
|
# another thread in the same process, leading to 'lock wait
|
|
# timeout' errors.
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
port_db, binding = db.get_locked_port_and_binding(session, id)
|
|
if not port_db:
|
|
raise exc.PortNotFound(port_id=id)
|
|
original_port = self._make_port_dict(port_db)
|
|
updated_port = super(Ml2Plugin, self).update_port(context, id,
|
|
port)
|
|
self.extension_manager.process_update_port(session, attrs,
|
|
original_port)
|
|
if addr_pair.ADDRESS_PAIRS in port['port']:
|
|
need_port_update_notify |= (
|
|
self.update_address_pairs_on_port(context, id, port,
|
|
original_port,
|
|
updated_port))
|
|
need_port_update_notify |= self.update_security_group_on_port(
|
|
context, id, port, original_port, updated_port)
|
|
network = self.get_network(context, original_port['network_id'])
|
|
need_port_update_notify |= self._update_extra_dhcp_opts_on_port(
|
|
context, id, port, updated_port)
|
|
mech_context = driver_context.PortContext(
|
|
self, context, updated_port, network, binding,
|
|
original_port=original_port)
|
|
new_host_port = self._get_host_port_if_changed(mech_context, attrs)
|
|
need_port_update_notify |= self._process_port_binding(
|
|
mech_context, attrs)
|
|
self.mechanism_manager.update_port_precommit(mech_context)
|
|
|
|
# Notification must be sent after the above transaction is complete
|
|
self._notify_l3_agent_new_port(context, new_host_port)
|
|
|
|
# TODO(apech) - handle errors raised by update_port, potentially
|
|
# by re-calling update_port with the previous attributes. For
|
|
# now the error is propogated to the caller, which is expected to
|
|
# either undo/retry the operation or delete the resource.
|
|
self.mechanism_manager.update_port_postcommit(mech_context)
|
|
|
|
need_port_update_notify |= self.is_security_group_member_updated(
|
|
context, original_port, updated_port)
|
|
|
|
if original_port['admin_state_up'] != updated_port['admin_state_up']:
|
|
need_port_update_notify = True
|
|
|
|
bound_port = self._bind_port_if_needed(
|
|
mech_context,
|
|
allow_notify=True,
|
|
need_notify=need_port_update_notify)
|
|
return bound_port._port
|
|
|
|
def _process_dvr_port_binding(self, mech_context, context, attrs):
|
|
binding = mech_context._binding
|
|
port = mech_context.current
|
|
|
|
if binding.vif_type != portbindings.VIF_TYPE_UNBOUND:
|
|
binding.vif_details = ''
|
|
binding.vif_type = portbindings.VIF_TYPE_UNBOUND
|
|
binding.driver = None
|
|
binding.segment = None
|
|
binding.host = ''
|
|
|
|
self._update_port_dict_binding(port, binding)
|
|
binding.host = attrs and attrs.get(portbindings.HOST_ID)
|
|
binding.router_id = attrs and attrs.get('device_id')
|
|
|
|
def update_dvr_port_binding(self, context, id, port):
|
|
attrs = port['port']
|
|
|
|
host = attrs and attrs.get(portbindings.HOST_ID)
|
|
host_set = attributes.is_attr_set(host)
|
|
|
|
if not host_set:
|
|
LOG.error(_("No Host supplied to bind DVR Port %s"), id)
|
|
return
|
|
|
|
session = context.session
|
|
binding = db.get_dvr_port_binding_by_host(session, id, host)
|
|
device_id = attrs and attrs.get('device_id')
|
|
router_id = binding and binding.get('router_id')
|
|
update_required = (not binding or
|
|
binding.vif_type == portbindings.VIF_TYPE_BINDING_FAILED or
|
|
router_id != device_id)
|
|
if update_required:
|
|
with session.begin(subtransactions=True):
|
|
try:
|
|
orig_port = super(Ml2Plugin, self).get_port(context, id)
|
|
except exc.PortNotFound:
|
|
LOG.debug("DVR Port %s has been deleted concurrently", id)
|
|
return
|
|
if not binding:
|
|
binding = db.ensure_dvr_port_binding(
|
|
session, id, host, router_id=device_id)
|
|
network = self.get_network(context, orig_port['network_id'])
|
|
mech_context = driver_context.DvrPortContext(self,
|
|
context, orig_port, network,
|
|
binding, original_port=orig_port)
|
|
self._process_dvr_port_binding(mech_context, context, attrs)
|
|
self.mechanism_manager.bind_port(mech_context)
|
|
# Now try to commit result of attempting to bind the port.
|
|
self._commit_dvr_port_binding(mech_context._plugin_context,
|
|
orig_port['id'],
|
|
host,
|
|
mech_context)
|
|
|
|
def _commit_dvr_port_binding(self, plugin_context,
|
|
port_id, host,
|
|
mech_context):
|
|
session = plugin_context.session
|
|
new_binding = mech_context._binding
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
# Get the current port state and build a new PortContext
|
|
# reflecting this state as original state for subsequent
|
|
# mechanism driver update_port_*commit() calls.
|
|
cur_binding = db.get_dvr_port_binding_by_host(session,
|
|
port_id,
|
|
host)
|
|
if not cur_binding:
|
|
LOG.info(_LI("Binding info for port %s was not found, "
|
|
"it might have been deleted already."),
|
|
port_id)
|
|
return
|
|
# Commit our binding results only if port has not been
|
|
# successfully bound concurrently by another thread or
|
|
# process and no binding inputs have been changed.
|
|
commit = ((cur_binding.vif_type in
|
|
[portbindings.VIF_TYPE_UNBOUND,
|
|
portbindings.VIF_TYPE_BINDING_FAILED]) and
|
|
new_binding.host == cur_binding.host and
|
|
new_binding.vnic_type == cur_binding.vnic_type and
|
|
new_binding.profile == cur_binding.profile)
|
|
|
|
if commit:
|
|
# Update the port's binding state with our binding
|
|
# results.
|
|
cur_binding.vif_type = new_binding.vif_type
|
|
cur_binding.vif_details = new_binding.vif_details
|
|
cur_binding.driver = new_binding.driver
|
|
cur_binding.segment = new_binding.segment
|
|
|
|
def delete_port(self, context, id, l3_port_check=True):
|
|
LOG.debug(_("Deleting port %s"), id)
|
|
removed_routers = []
|
|
l3plugin = manager.NeutronManager.get_service_plugins().get(
|
|
service_constants.L3_ROUTER_NAT)
|
|
is_dvr_enabled = utils.is_extension_supported(
|
|
l3plugin, const.L3_DISTRIBUTED_EXT_ALIAS)
|
|
if l3plugin and l3_port_check:
|
|
l3plugin.prevent_l3_port_deletion(context, id)
|
|
|
|
session = context.session
|
|
# REVISIT: Serialize this operation with a semaphore to
|
|
# prevent deadlock waiting to acquire a DB lock held by
|
|
# another thread in the same process, leading to 'lock wait
|
|
# timeout' errors.
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
port_db, binding = db.get_locked_port_and_binding(session, id)
|
|
if not port_db:
|
|
# the port existed when l3plugin.prevent_l3_port_deletion
|
|
# was called but now is already gone
|
|
LOG.debug(_("The port '%s' was deleted"), id)
|
|
return
|
|
port = self._make_port_dict(port_db)
|
|
|
|
network = self.get_network(context, port['network_id'])
|
|
bound_mech_contexts = []
|
|
device_owner = port['device_owner']
|
|
if device_owner == const.DEVICE_OWNER_DVR_INTERFACE:
|
|
bindings = db.get_dvr_port_bindings(context.session, id)
|
|
for bind in bindings:
|
|
mech_context = driver_context.DvrPortContext(
|
|
self, context, port, network, bind)
|
|
self.mechanism_manager.delete_port_precommit(mech_context)
|
|
bound_mech_contexts.append(mech_context)
|
|
else:
|
|
mech_context = driver_context.PortContext(self, context, port,
|
|
network, binding)
|
|
if is_dvr_enabled and utils.is_dvr_serviced(device_owner):
|
|
removed_routers = l3plugin.dvr_deletens_if_no_port(
|
|
context, id)
|
|
self.mechanism_manager.delete_port_precommit(mech_context)
|
|
bound_mech_contexts.append(mech_context)
|
|
self._delete_port_security_group_bindings(context, id)
|
|
if l3plugin:
|
|
router_ids = l3plugin.disassociate_floatingips(
|
|
context, id, do_notify=False)
|
|
|
|
LOG.debug("Calling delete_port for %(port_id)s owned by %(owner)s"
|
|
% {"port_id": id, "owner": device_owner})
|
|
super(Ml2Plugin, self).delete_port(context, id)
|
|
|
|
# now that we've left db transaction, we are safe to notify
|
|
if l3plugin:
|
|
if is_dvr_enabled:
|
|
l3plugin.dvr_vmarp_table_update(context, port, "del")
|
|
l3plugin.notify_routers_updated(context, router_ids)
|
|
for router in removed_routers:
|
|
try:
|
|
l3plugin.remove_router_from_l3_agent(
|
|
context, router['agent_id'], router['router_id'])
|
|
except l3agentscheduler.RouterNotHostedByL3Agent:
|
|
# router may have been removed by another process
|
|
LOG.debug("Router %(id)s not hosted by L3 agent %(agent)s",
|
|
{'id': router['router_id'],
|
|
'agent': router['agent_id']})
|
|
try:
|
|
# Note that DVR Interface ports will have bindings on
|
|
# multiple hosts, and so will have multiple mech_contexts,
|
|
# while other ports typically have just one.
|
|
for mech_context in bound_mech_contexts:
|
|
self.mechanism_manager.delete_port_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
# TODO(apech) - One or more mechanism driver failed to
|
|
# delete the port. Ideally we'd notify the caller of the
|
|
# fact that an error occurred.
|
|
LOG.error(_("mechanism_manager.delete_port_postcommit failed for "
|
|
"port %s"), id)
|
|
self.notify_security_groups_member_updated(context, port)
|
|
|
|
def get_bound_port_context(self, plugin_context, port_id, host=None):
|
|
session = plugin_context.session
|
|
with session.begin(subtransactions=True):
|
|
try:
|
|
port_db = (session.query(models_v2.Port).
|
|
enable_eagerloads(False).
|
|
filter(models_v2.Port.id.startswith(port_id)).
|
|
one())
|
|
except sa_exc.NoResultFound:
|
|
LOG.debug("No ports have port_id starting with %s",
|
|
port_id)
|
|
return
|
|
except exc.MultipleResultsFound:
|
|
LOG.error(_("Multiple ports have port_id starting with %s"),
|
|
port_id)
|
|
return
|
|
port = self._make_port_dict(port_db)
|
|
network = self.get_network(plugin_context, port['network_id'])
|
|
if port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE:
|
|
binding = db.get_dvr_port_binding_by_host(
|
|
session, port['id'], host)
|
|
if not binding:
|
|
LOG.error(_("Binding info for DVR port %s not found"),
|
|
port_id)
|
|
return None
|
|
port_context = driver_context.DvrPortContext(
|
|
self, plugin_context, port, network, binding)
|
|
else:
|
|
# since eager loads are disabled in port_db query
|
|
# related attribute port_binding could disappear in
|
|
# concurrent port deletion.
|
|
# It's not an error condition.
|
|
binding = port_db.port_binding
|
|
if not binding:
|
|
LOG.info(_LI("Binding info for port %s was not found, "
|
|
"it might have been deleted already."),
|
|
port_id)
|
|
return
|
|
port_context = driver_context.PortContext(
|
|
self, plugin_context, port, network, binding)
|
|
|
|
return self._bind_port_if_needed(port_context)
|
|
|
|
def update_port_status(self, context, port_id, status, host=None):
|
|
"""
|
|
Returns port_id (non-truncated uuid) if the port exists.
|
|
Otherwise returns None.
|
|
"""
|
|
updated = False
|
|
session = context.session
|
|
# REVISIT: Serialize this operation with a semaphore to
|
|
# prevent deadlock waiting to acquire a DB lock held by
|
|
# another thread in the same process, leading to 'lock wait
|
|
# timeout' errors.
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
port = db.get_port(session, port_id)
|
|
if not port:
|
|
LOG.warning(_("Port %(port)s updated up by agent not found"),
|
|
{'port': port_id})
|
|
return None
|
|
if (port.status != status and
|
|
port['device_owner'] != const.DEVICE_OWNER_DVR_INTERFACE):
|
|
original_port = self._make_port_dict(port)
|
|
port.status = status
|
|
updated_port = self._make_port_dict(port)
|
|
network = self.get_network(context,
|
|
original_port['network_id'])
|
|
mech_context = driver_context.PortContext(
|
|
self, context, updated_port, network, port.port_binding,
|
|
original_port=original_port)
|
|
self.mechanism_manager.update_port_precommit(mech_context)
|
|
updated = True
|
|
elif port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE:
|
|
binding = db.get_dvr_port_binding_by_host(
|
|
session, port['id'], host)
|
|
if not binding:
|
|
return
|
|
binding['status'] = status
|
|
binding.update(binding)
|
|
updated = True
|
|
|
|
if (updated and
|
|
port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE):
|
|
with contextlib.nested(lockutils.lock('db-access'),
|
|
session.begin(subtransactions=True)):
|
|
port = db.get_port(session, port_id)
|
|
if not port:
|
|
LOG.warning(_("Port %s not found during update"), port_id)
|
|
return
|
|
original_port = self._make_port_dict(port)
|
|
network = self.get_network(context,
|
|
original_port['network_id'])
|
|
port.status = db.generate_dvr_port_status(session, port['id'])
|
|
updated_port = self._make_port_dict(port)
|
|
mech_context = (driver_context.DvrPortContext(
|
|
self, context, updated_port, network,
|
|
binding, original_port=original_port))
|
|
self.mechanism_manager.update_port_precommit(mech_context)
|
|
|
|
if updated:
|
|
self.mechanism_manager.update_port_postcommit(mech_context)
|
|
|
|
if port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE:
|
|
db.delete_dvr_port_binding_if_stale(session, binding)
|
|
|
|
return port['id']
|
|
|
|
def port_bound_to_host(self, context, port_id, host):
|
|
port = db.get_port(context.session, port_id)
|
|
if not port:
|
|
LOG.debug("No Port match for: %s", port_id)
|
|
return False
|
|
if port['device_owner'] == const.DEVICE_OWNER_DVR_INTERFACE:
|
|
bindings = db.get_dvr_port_bindings(context.session, port_id)
|
|
for b in bindings:
|
|
if b.host == host:
|
|
return True
|
|
LOG.debug("No binding found for DVR port %s", port['id'])
|
|
return False
|
|
else:
|
|
port_host = db.get_port_binding_host(port_id)
|
|
return (port_host == host)
|
|
|
|
def get_ports_from_devices(self, devices):
|
|
port_ids_to_devices = dict((self._device_to_port_id(device), device)
|
|
for device in devices)
|
|
port_ids = port_ids_to_devices.keys()
|
|
ports = db.get_ports_and_sgs(port_ids)
|
|
for port in ports:
|
|
# map back to original requested id
|
|
port_id = next((port_id for port_id in port_ids
|
|
if port['id'].startswith(port_id)), None)
|
|
port['device'] = port_ids_to_devices.get(port_id)
|
|
|
|
return ports
|
|
|
|
def _device_to_port_id(self, device):
|
|
# REVISIT(rkukura): Consider calling into MechanismDrivers to
|
|
# process device names, or having MechanismDrivers supply list
|
|
# of device prefixes to strip.
|
|
if device.startswith(const.TAP_DEVICE_PREFIX):
|
|
return device[len(const.TAP_DEVICE_PREFIX):]
|
|
else:
|
|
# REVISIT(irenab): Consider calling into bound MD to
|
|
# handle the get_device_details RPC, then remove the 'else' clause
|
|
if not uuidutils.is_uuid_like(device):
|
|
port = db.get_port_from_device_mac(device)
|
|
if port:
|
|
return port.id
|
|
return device
|