OpenStack Networking (Neutron)
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neutron/neutron/plugins/ml2/drivers/type_vxlan.py

63 lines
2.3 KiB

# 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 vxlanallocation as vxlan_alloc_model
from neutron.objects.plugins.ml2 import vxlanallocation as vxlan_obj
from neutron.plugins.ml2.drivers import type_tunnel
LOG = log.getLogger(__name__)
driver_type.register_ml2_drivers_vxlan_opts()
class VxlanTypeDriver(type_tunnel.EndpointTunnelTypeDriver):
def __init__(self):
super(VxlanTypeDriver, self).__init__(
vxlan_obj.VxlanAllocation, vxlan_obj.VxlanEndpoint)
self.model_segmentation_id = (
vxlan_alloc_model.VxlanAllocation.vxlan_vni)
def get_type(self):
return p_const.TYPE_VXLAN
def initialize(self):
try:
self._initialize(cfg.CONF.ml2_type_vxlan.vni_ranges)
except n_exc.NetworkTunnelRangeError:
LOG.exception("Failed to parse vni_ranges. "
"Service terminated!")
raise SystemExit()
def get_endpoints(self):
"""Get every vxlan endpoints from database."""
vxlan_endpoints = self._get_endpoints()
return [{'ip_address': vxlan_endpoint.ip_address,
'udp_port': vxlan_endpoint.udp_port,
'host': vxlan_endpoint.host}
for vxlan_endpoint in vxlan_endpoints]
def add_endpoint(self, ip, host, udp_port=p_const.VXLAN_UDP_PORT):
return self._add_endpoint(ip, host, udp_port=udp_port)
def get_mtu(self, physical_network=None):
mtu = super(VxlanTypeDriver, self).get_mtu()
return mtu - p_const.VXLAN_ENCAP_OVERHEAD if mtu else 0