be8a068943
In addition to binding:vif_type, the neutron core plugin needs to supply various information to nova's VIF driver, such as VIF security details and PCI details when SR-IOV is being used. This information is read-only, requires admin privileges, and is not intended for normal users. Rather than add separate mechanisms throughout the stack for each such requirement, the binding:capabilities port attibute, which is a dictionary and is not currently not used by nova, is renamed to binding:vif_details to serve as a general-purpose mechanism for supplying binding-specific details to the VIF driver. This patch does not remove or replace the CAP_PORT_FILTER boolean previously used in binding:capabilities. A separate patch should implement the specific key/value pairs carried by binding:vif_details to implement VIF security. Another patch will implement the key/value pairs needed for SR-IOV. The ML2 plugin now allows the bound mechanism driver to supply the binding:vif_details dictionary content, instead of just the CAP_PORT_FILTER boolean previously carried by the binding:capabilities attribute. DocImpact: Need to update portbinding extension API, but no impact on user or administrator documentation. Implements: blueprint vif-details Related-Bug: 1112912 Change-Id: I34be746fcfa73c70f72b4f9add8eff3ac88c723f
58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron.common import constants
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from neutron.extensions import portbindings
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from neutron.openstack.common import log
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from neutron.plugins.ml2 import driver_api as api
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from neutron.plugins.ml2.drivers import mech_agent
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LOG = log.getLogger(__name__)
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class LinuxbridgeMechanismDriver(mech_agent.SimpleAgentMechanismDriverBase):
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"""Attach to networks using linuxbridge L2 agent.
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The LinuxbridgeMechanismDriver integrates the ml2 plugin with the
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linuxbridge L2 agent. Port binding with this driver requires the
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linuxbridge agent to be running on the port's host, and that agent
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to have connectivity to at least one segment of the port's
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network.
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"""
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def __init__(self):
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super(LinuxbridgeMechanismDriver, self).__init__(
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constants.AGENT_TYPE_LINUXBRIDGE,
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portbindings.VIF_TYPE_BRIDGE,
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{portbindings.CAP_PORT_FILTER: True})
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def check_segment_for_agent(self, segment, agent):
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mappings = agent['configurations'].get('interface_mappings', {})
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tunnel_types = agent['configurations'].get('tunnel_types', [])
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LOG.debug(_("Checking segment: %(segment)s "
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"for mappings: %(mappings)s "
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"with tunnel_types: %(tunnel_types)s"),
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{'segment': segment, 'mappings': mappings,
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'tunnel_types': tunnel_types})
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network_type = segment[api.NETWORK_TYPE]
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if network_type == 'local':
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return True
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elif network_type in tunnel_types:
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return True
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elif network_type in ['flat', 'vlan']:
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return segment[api.PHYSICAL_NETWORK] in mappings
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else:
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return False
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