76 lines
2.6 KiB
Python
76 lines
2.6 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_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 gre_allocation_endpoints as gre_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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gre_opts = [
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cfg.ListOpt('tunnel_id_ranges',
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default=[],
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help=_("Comma-separated list of <tun_min>:<tun_max> tuples "
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"enumerating ranges of GRE tunnel IDs that are "
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"available for tenant network allocation"))
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]
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cfg.CONF.register_opts(gre_opts, "ml2_type_gre")
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_deprecate._moved_global('GreAllocation', new_module=gre_model)
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_deprecate._moved_global('GreEndpoints', new_module=gre_model)
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class GreTypeDriver(type_tunnel.EndpointTunnelTypeDriver):
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def __init__(self):
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super(GreTypeDriver, self).__init__(
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gre_model.GreAllocation, gre_model.GreEndpoints)
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def get_type(self):
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return p_const.TYPE_GRE
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def initialize(self):
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try:
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self._initialize(cfg.CONF.ml2_type_gre.tunnel_id_ranges)
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except n_exc.NetworkTunnelRangeError:
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LOG.exception(_LE("Failed to parse tunnel_id_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 gre endpoints from database."""
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gre_endpoints = self._get_endpoints()
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return [{'ip_address': gre_endpoint.ip_address,
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'host': gre_endpoint.host}
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for gre_endpoint in gre_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(GreTypeDriver, self).get_mtu(physical_network)
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return mtu - p_const.GRE_ENCAP_OVERHEAD if mtu else 0
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_deprecate._MovedGlobals()
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