b17735475f
Bug #1195047 This patch: 1. removes the iteration in get_ports to call extend_dict_binding 2. uses a unified way for plugins to do this kind of stuff ml2 will enhance the binding so that it can have different binding for port according to port's host. mlnx and bigswitch are also exceptions due to the dynamic binding info. Change-Id: I5a77eb7395e14482a856e033f536f72a1bf82e06
517 lines
23 KiB
Python
517 lines
23 KiB
Python
# Copyright (c) 2012 OpenStack Foundation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from oslo.config import cfg
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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.api.v2 import attributes
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from neutron.common import constants as q_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.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 api as db_api
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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_db
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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.extensions import providernet as provider
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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.plugins.common import utils as plugin_utils
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from neutron.plugins.linuxbridge.common import constants
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from neutron.plugins.linuxbridge.db import l2network_db_v2 as db
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LOG = logging.getLogger(__name__)
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class LinuxBridgeRpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
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l3_rpc_base.L3RpcCallbackMixin,
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sg_db_rpc.SecurityGroupServerRpcCallbackMixin
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):
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# history
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# 1.1 Support Security Group RPC
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RPC_API_VERSION = '1.1'
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# Device names start with "tap"
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TAP_PREFIX_LEN = 3
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def create_rpc_dispatcher(self):
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'''Get the rpc dispatcher for this manager.
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If a manager would like to set an rpc API version, or support more than
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one class as the target of rpc messages, override this method.
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'''
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return q_rpc.PluginRpcDispatcher([self,
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agents_db.AgentExtRpcCallback()])
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@classmethod
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def get_port_from_device(cls, device):
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port = db.get_port_from_device(device[cls.TAP_PREFIX_LEN:])
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if port:
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port['device'] = device
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return port
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def get_device_details(self, rpc_context, **kwargs):
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"""Agent requests device details."""
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s details requested from %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port = self.get_port_from_device(device)
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if port:
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binding = db.get_network_binding(db_api.get_session(),
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port['network_id'])
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(network_type,
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segmentation_id) = constants.interpret_vlan_id(binding.vlan_id)
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entry = {'device': device,
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'network_type': network_type,
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'physical_network': binding.physical_network,
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'segmentation_id': segmentation_id,
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'network_id': port['network_id'],
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'port_id': port['id'],
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'admin_state_up': port['admin_state_up']}
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if cfg.CONF.AGENT.rpc_support_old_agents:
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entry['vlan_id'] = binding.vlan_id
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new_status = (q_const.PORT_STATUS_ACTIVE if port['admin_state_up']
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else q_const.PORT_STATUS_DOWN)
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if port['status'] != new_status:
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db.set_port_status(port['id'], new_status)
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else:
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entry = {'device': device}
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LOG.debug(_("%s can not be found in database"), device)
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return entry
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def update_device_down(self, rpc_context, **kwargs):
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"""Device no longer exists on agent."""
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# TODO(garyk) - live migration and port status
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s no longer exists on %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port = self.get_port_from_device(device)
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if port:
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entry = {'device': device,
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'exists': True}
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if port['status'] != q_const.PORT_STATUS_DOWN:
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# Set port status to DOWN
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db.set_port_status(port['id'], q_const.PORT_STATUS_DOWN)
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else:
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entry = {'device': device,
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'exists': False}
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LOG.debug(_("%s can not be found in database"), device)
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return entry
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def update_device_up(self, rpc_context, **kwargs):
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"""Device is up on agent."""
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agent_id = kwargs.get('agent_id')
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device = kwargs.get('device')
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LOG.debug(_("Device %(device)s up %(agent_id)s"),
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{'device': device, 'agent_id': agent_id})
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port = self.get_port_from_device(device)
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if port:
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if port['status'] != q_const.PORT_STATUS_ACTIVE:
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# Set port status to ACTIVE
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db.set_port_status(port['id'], q_const.PORT_STATUS_ACTIVE)
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else:
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LOG.debug(_("%s can not be found in database"), device)
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class AgentNotifierApi(proxy.RpcProxy,
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sg_rpc.SecurityGroupAgentRpcApiMixin):
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'''Agent side of the linux bridge rpc API.
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API version history:
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1.0 - Initial version.
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1.1 - Added get_active_networks_info, create_dhcp_port,
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and update_dhcp_port methods.
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'''
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BASE_RPC_API_VERSION = '1.1'
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def __init__(self, topic):
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super(AgentNotifierApi, self).__init__(
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topic=topic, default_version=self.BASE_RPC_API_VERSION)
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self.topic = topic
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self.topic_network_delete = topics.get_topic_name(topic,
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topics.NETWORK,
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topics.DELETE)
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self.topic_port_update = topics.get_topic_name(topic,
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topics.PORT,
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topics.UPDATE)
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def network_delete(self, context, network_id):
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self.fanout_cast(context,
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self.make_msg('network_delete',
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network_id=network_id),
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topic=self.topic_network_delete)
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def port_update(self, context, port, physical_network, vlan_id):
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network_type, segmentation_id = constants.interpret_vlan_id(vlan_id)
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kwargs = {'port': port,
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'network_type': network_type,
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'physical_network': physical_network,
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'segmentation_id': segmentation_id}
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if cfg.CONF.AGENT.rpc_support_old_agents:
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kwargs['vlan_id'] = vlan_id
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msg = self.make_msg('port_update', **kwargs)
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self.fanout_cast(context, msg,
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topic=self.topic_port_update)
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class LinuxBridgePluginV2(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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portbindings_db.PortBindingMixin):
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"""Implement the Neutron abstractions using Linux bridging.
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A new VLAN is created for each network. An agent is relied upon
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to perform the actual Linux bridge configuration on each host.
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The provider extension is also supported. As discussed in
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https://bugs.launchpad.net/neutron/+bug/1023156, this class could
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be simplified, and filtering on extended attributes could be
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handled, by adding support for extended attributes to the
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NeutronDbPluginV2 base class. When that occurs, this class should
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be updated to take advantage of it.
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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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# 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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_supported_extension_aliases = ["provider", "router", "ext-gw-mode",
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"binding", "quotas", "security-group",
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"agent", "extraroute",
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"l3_agent_scheduler",
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"dhcp_agent_scheduler"]
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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._aliases = aliases
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return self._aliases
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def __init__(self):
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self.base_binding_dict = {
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portbindings.VIF_TYPE: portbindings.VIF_TYPE_BRIDGE,
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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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db.initialize()
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self._parse_network_vlan_ranges()
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db.sync_network_states(self.network_vlan_ranges)
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self.tenant_network_type = cfg.CONF.VLANS.tenant_network_type
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if self.tenant_network_type not in [constants.TYPE_LOCAL,
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constants.TYPE_VLAN,
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constants.TYPE_NONE]:
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LOG.error(_("Invalid tenant_network_type: %s. "
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"Service terminated!"),
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self.tenant_network_type)
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sys.exit(1)
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self._setup_rpc()
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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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self.router_scheduler = importutils.import_object(
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cfg.CONF.router_scheduler_driver
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)
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LOG.debug(_("Linux Bridge Plugin initialization complete"))
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def _setup_rpc(self):
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# RPC support
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self.topic = topics.PLUGIN
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self.conn = rpc.create_connection(new=True)
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self.callbacks = LinuxBridgeRpcCallbacks()
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self.dispatcher = self.callbacks.create_rpc_dispatcher()
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self.conn.create_consumer(self.topic, self.dispatcher,
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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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self.notifier = AgentNotifierApi(topics.AGENT)
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self.agent_notifiers[q_const.AGENT_TYPE_DHCP] = (
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dhcp_rpc_agent_api.DhcpAgentNotifyAPI()
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)
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self.agent_notifiers[q_const.AGENT_TYPE_L3] = (
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l3_rpc_agent_api.L3AgentNotify
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)
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def _parse_network_vlan_ranges(self):
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try:
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self.network_vlan_ranges = plugin_utils.parse_network_vlan_ranges(
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cfg.CONF.VLANS.network_vlan_ranges)
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except Exception as ex:
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LOG.error(_("%s. Agent terminated!"), ex)
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sys.exit(1)
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LOG.info(_("Network VLAN ranges: %s"), self.network_vlan_ranges)
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def _add_network_vlan_range(self, physical_network, vlan_min, vlan_max):
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self._add_network(physical_network)
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self.network_vlan_ranges[physical_network].append((vlan_min, vlan_max))
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def _add_network(self, physical_network):
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if physical_network not in self.network_vlan_ranges:
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self.network_vlan_ranges[physical_network] = []
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def _extend_network_dict_provider(self, context, network):
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binding = db.get_network_binding(context.session, network['id'])
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if binding.vlan_id == constants.FLAT_VLAN_ID:
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network[provider.NETWORK_TYPE] = constants.TYPE_FLAT
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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network[provider.SEGMENTATION_ID] = None
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elif binding.vlan_id == constants.LOCAL_VLAN_ID:
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network[provider.NETWORK_TYPE] = constants.TYPE_LOCAL
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network[provider.PHYSICAL_NETWORK] = None
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network[provider.SEGMENTATION_ID] = None
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else:
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network[provider.NETWORK_TYPE] = constants.TYPE_VLAN
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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network[provider.SEGMENTATION_ID] = binding.vlan_id
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def _process_provider_create(self, context, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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network_type_set = attributes.is_attr_set(network_type)
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physical_network_set = attributes.is_attr_set(physical_network)
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segmentation_id_set = attributes.is_attr_set(segmentation_id)
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if not (network_type_set or physical_network_set or
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segmentation_id_set):
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return (None, None, None)
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if not network_type_set:
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msg = _("provider:network_type required")
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raise q_exc.InvalidInput(error_message=msg)
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elif network_type == constants.TYPE_FLAT:
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if segmentation_id_set:
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msg = _("provider:segmentation_id specified for flat network")
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raise q_exc.InvalidInput(error_message=msg)
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else:
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segmentation_id = constants.FLAT_VLAN_ID
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elif network_type == constants.TYPE_VLAN:
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if not segmentation_id_set:
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msg = _("provider:segmentation_id required")
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raise q_exc.InvalidInput(error_message=msg)
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if not utils.is_valid_vlan_tag(segmentation_id):
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msg = (_("provider:segmentation_id out of range "
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"(%(min_id)s through %(max_id)s)") %
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{'min_id': q_const.MIN_VLAN_TAG,
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'max_id': q_const.MAX_VLAN_TAG})
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raise q_exc.InvalidInput(error_message=msg)
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elif network_type == constants.TYPE_LOCAL:
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if physical_network_set:
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msg = _("provider:physical_network specified for local "
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"network")
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raise q_exc.InvalidInput(error_message=msg)
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else:
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physical_network = None
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if segmentation_id_set:
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msg = _("provider:segmentation_id specified for local "
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"network")
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raise q_exc.InvalidInput(error_message=msg)
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else:
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segmentation_id = constants.LOCAL_VLAN_ID
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else:
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msg = _("provider:network_type %s not supported") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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if network_type in [constants.TYPE_VLAN, constants.TYPE_FLAT]:
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if physical_network_set:
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if physical_network not in self.network_vlan_ranges:
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msg = (_("Unknown provider:physical_network %s") %
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physical_network)
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raise q_exc.InvalidInput(error_message=msg)
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elif 'default' in self.network_vlan_ranges:
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physical_network = 'default'
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else:
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msg = _("provider:physical_network required")
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raise q_exc.InvalidInput(error_message=msg)
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return (network_type, physical_network, segmentation_id)
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def create_network(self, context, network):
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(network_type, physical_network,
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vlan_id) = self._process_provider_create(context,
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network['network'])
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session = context.session
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with session.begin(subtransactions=True):
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#set up default security groups
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tenant_id = self._get_tenant_id_for_create(
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context, network['network'])
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self._ensure_default_security_group(context, tenant_id)
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if not network_type:
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# tenant network
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network_type = self.tenant_network_type
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if network_type == constants.TYPE_NONE:
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raise q_exc.TenantNetworksDisabled()
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elif network_type == constants.TYPE_VLAN:
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physical_network, vlan_id = db.reserve_network(session)
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else: # TYPE_LOCAL
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vlan_id = constants.LOCAL_VLAN_ID
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else:
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# provider network
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if network_type in [constants.TYPE_VLAN, constants.TYPE_FLAT]:
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db.reserve_specific_network(session, physical_network,
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vlan_id)
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# no reservation needed for TYPE_LOCAL
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net = super(LinuxBridgePluginV2, self).create_network(context,
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network)
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db.add_network_binding(session, net['id'],
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physical_network, vlan_id)
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self._process_l3_create(context, net, network['network'])
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self._extend_network_dict_provider(context, net)
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# note - exception will rollback entire transaction
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return net
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def update_network(self, context, id, network):
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provider._raise_if_updates_provider_attributes(network['network'])
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session = context.session
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with session.begin(subtransactions=True):
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net = super(LinuxBridgePluginV2, self).update_network(context, id,
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network)
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self._process_l3_update(context, net, network['network'])
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self._extend_network_dict_provider(context, net)
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return net
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def delete_network(self, context, id):
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session = context.session
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with session.begin(subtransactions=True):
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binding = db.get_network_binding(session, id)
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super(LinuxBridgePluginV2, self).delete_network(context, id)
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if binding.vlan_id != constants.LOCAL_VLAN_ID:
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db.release_network(session, binding.physical_network,
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binding.vlan_id, self.network_vlan_ranges)
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# the network_binding record is deleted via cascade from
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# the network record, so explicit removal is not necessary
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self.notifier.network_delete(context, id)
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def get_network(self, context, id, fields=None):
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session = context.session
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with session.begin(subtransactions=True):
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net = super(LinuxBridgePluginV2, self).get_network(context,
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id, None)
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self._extend_network_dict_provider(context, net)
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return self._fields(net, fields)
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def get_networks(self, context, filters=None, fields=None,
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sorts=None, limit=None, marker=None, page_reverse=False):
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session = context.session
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with session.begin(subtransactions=True):
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nets = super(LinuxBridgePluginV2,
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self).get_networks(context, filters, None, sorts,
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limit, marker, page_reverse)
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for net in nets:
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self._extend_network_dict_provider(context, net)
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return [self._fields(net, fields) for net in nets]
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def create_port(self, context, port):
|
|
session = context.session
|
|
port_data = port['port']
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group_on_port(context, port)
|
|
sgids = self._get_security_groups_on_port(context, port)
|
|
# Set port status as 'DOWN'. This will be updated by agent
|
|
port['port']['status'] = q_const.PORT_STATUS_DOWN
|
|
|
|
port = super(LinuxBridgePluginV2,
|
|
self).create_port(context, port)
|
|
self._process_portbindings_create_and_update(context,
|
|
port_data,
|
|
port)
|
|
self._process_port_create_security_group(
|
|
context, port, sgids)
|
|
self.notify_security_groups_member_updated(context, port)
|
|
return port
|
|
|
|
def update_port(self, context, id, port):
|
|
original_port = self.get_port(context, id)
|
|
session = context.session
|
|
need_port_update_notify = False
|
|
|
|
with session.begin(subtransactions=True):
|
|
updated_port = super(LinuxBridgePluginV2, self).update_port(
|
|
context, id, port)
|
|
self._process_portbindings_create_and_update(context,
|
|
port['port'],
|
|
updated_port)
|
|
need_port_update_notify = self.update_security_group_on_port(
|
|
context, id, port, original_port, updated_port)
|
|
|
|
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
|
|
|
|
if need_port_update_notify:
|
|
self._notify_port_updated(context, updated_port)
|
|
return updated_port
|
|
|
|
def delete_port(self, context, id, l3_port_check=True):
|
|
|
|
# if needed, check to see if this is a port owned by
|
|
# and l3-router. If so, we should prevent deletion.
|
|
if l3_port_check:
|
|
self.prevent_l3_port_deletion(context, id)
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self.disassociate_floatingips(context, id)
|
|
port = self.get_port(context, id)
|
|
self._delete_port_security_group_bindings(context, id)
|
|
super(LinuxBridgePluginV2, self).delete_port(context, id)
|
|
|
|
self.notify_security_groups_member_updated(context, port)
|
|
|
|
def _notify_port_updated(self, context, port):
|
|
binding = db.get_network_binding(context.session,
|
|
port['network_id'])
|
|
self.notifier.port_update(context, port,
|
|
binding.physical_network,
|
|
binding.vlan_id)
|