You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
from neutron_lib import constants as p_const
|
|
from neutron_lib import exceptions as n_exc
|
|
from oslo_config import cfg
|
|
from oslo_log import log
|
|
|
|
from neutron.conf.plugins.ml2.drivers import driver_type
|
|
from neutron.db.models.plugins.ml2 import gre_allocation_endpoints as \
|
|
gre_alloc_model
|
|
from neutron.objects.plugins.ml2 import greallocation as gre_obj
|
|
from neutron.plugins.ml2.drivers import type_tunnel
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
driver_type.register_ml2_drivers_gre_opts()
|
|
|
|
|
|
class GreTypeDriver(type_tunnel.EndpointTunnelTypeDriver):
|
|
|
|
def __init__(self):
|
|
super(GreTypeDriver, self).__init__(
|
|
gre_obj.GreAllocation, gre_obj.GreEndpoint)
|
|
self.model_segmentation_id = gre_alloc_model.GreAllocation.gre_id
|
|
|
|
def get_type(self):
|
|
return p_const.TYPE_GRE
|
|
|
|
def initialize(self):
|
|
try:
|
|
self._initialize(cfg.CONF.ml2_type_gre.tunnel_id_ranges)
|
|
except n_exc.NetworkTunnelRangeError:
|
|
LOG.exception("Failed to parse tunnel_id_ranges. "
|
|
"Service terminated!")
|
|
raise SystemExit()
|
|
|
|
def get_endpoints(self):
|
|
"""Get every gre endpoints from database."""
|
|
gre_endpoints = self._get_endpoints()
|
|
return [{'ip_address': gre_endpoint.ip_address,
|
|
'host': gre_endpoint.host}
|
|
for gre_endpoint in gre_endpoints]
|
|
|
|
def add_endpoint(self, ip, host):
|
|
return self._add_endpoint(ip, host)
|
|
|
|
def get_mtu(self, physical_network=None):
|
|
mtu = super(GreTypeDriver, self).get_mtu(physical_network)
|
|
return mtu - p_const.GRE_ENCAP_OVERHEAD if mtu else 0
|