63 lines
2.0 KiB
Python
63 lines
2.0 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 quantum.common import exceptions as exc
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from quantum.openstack.common import log
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from quantum.plugins.ml2 import driver_api as api
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LOG = log.getLogger(__name__)
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TYPE_LOCAL = 'local'
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class LocalTypeDriver(api.TypeDriver):
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"""Manage state for local networks with ML2.
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The LocalTypeDriver implements the 'local' network_type. Local
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network segments provide connectivity between VMs and other
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devices running on the same node, provided that a common local
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network bridging technology is available to those devices. Local
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network segments do not provide any connectivity between nodes.
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"""
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def __init__(self):
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LOG.info(_("ML2 LocalTypeDriver initialization complete"))
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def get_type(self):
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return TYPE_LOCAL
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def initialize(self):
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pass
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def validate_provider_segment(self, segment):
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for key, value in segment.iteritems():
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if value and key not in [api.NETWORK_TYPE]:
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msg = _("%s prohibited for local provider network") % key
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raise exc.InvalidInput(error_message=msg)
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return segment
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def reserve_provider_segment(self, session, segment):
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# No resources to reserve
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pass
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def allocate_tenant_segment(self, session):
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# No resources to allocate
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return {api.NETWORK_TYPE: TYPE_LOCAL}
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def release_segment(self, session, segment):
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# No resources to release
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pass
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