87 lines
3.3 KiB
Python
87 lines
3.3 KiB
Python
# Copyright (c) 2015 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_lib import exceptions as n_exc
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from oslo_config import cfg
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from oslo_log import log
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from neutron._i18n import _, _LE
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from neutron.common import _deprecate
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from neutron.db.models.plugins.ml2 import geneveallocation \
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as geneve_model
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from neutron.plugins.common import constants as p_const
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from neutron.plugins.ml2.drivers import type_tunnel
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LOG = log.getLogger(__name__)
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_deprecate._moved_global('GeneveAllocation', new_module=geneve_model)
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_deprecate._moved_global('GeneveEndpoints', new_module=geneve_model)
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geneve_opts = [
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cfg.ListOpt('vni_ranges',
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default=[],
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help=_("Comma-separated list of <vni_min>:<vni_max> tuples "
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"enumerating ranges of Geneve VNI IDs that are "
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"available for tenant network allocation")),
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cfg.IntOpt('max_header_size',
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default=p_const.GENEVE_ENCAP_MIN_OVERHEAD,
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help=_("Geneve encapsulation header size is dynamic, this "
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"value is used to calculate the maximum MTU "
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"for the driver. "
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"This is the sum of the sizes of the outer "
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"ETH + IP + UDP + GENEVE header sizes. "
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"The default size for this field is 50, which is the "
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"size of the Geneve header without any additional "
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"option headers.")),
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]
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cfg.CONF.register_opts(geneve_opts, "ml2_type_geneve")
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class GeneveTypeDriver(type_tunnel.EndpointTunnelTypeDriver):
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def __init__(self):
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super(GeneveTypeDriver, self).__init__(geneve_model.GeneveAllocation,
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geneve_model.GeneveEndpoints)
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self.max_encap_size = cfg.CONF.ml2_type_geneve.max_header_size
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def get_type(self):
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return p_const.TYPE_GENEVE
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def initialize(self):
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try:
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self._initialize(cfg.CONF.ml2_type_geneve.vni_ranges)
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except n_exc.NetworkTunnelRangeError:
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LOG.error(_LE("Failed to parse vni_ranges. "
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"Service terminated!"))
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raise SystemExit()
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def get_endpoints(self):
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"""Get every geneve endpoints from database."""
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geneve_endpoints = self._get_endpoints()
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return [{'ip_address': geneve_endpoint.ip_address,
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'host': geneve_endpoint.host}
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for geneve_endpoint in geneve_endpoints]
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def add_endpoint(self, ip, host):
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return self._add_endpoint(ip, host)
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def get_mtu(self, physical_network=None):
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mtu = super(GeneveTypeDriver, self).get_mtu()
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return mtu - self.max_encap_size if mtu else 0
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_deprecate._MovedGlobals()
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