neutron/neutron/services/trunk/drivers/linuxbridge/driver.py

54 lines
1.7 KiB
Python

#
# 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 oslo_config import cfg
from oslo_log import log as logging
from neutron_lib.api.definitions import portbindings
from neutron_lib import constants
from neutron.services.trunk import constants as trunk_consts
from neutron.services.trunk.drivers import base
LOG = logging.getLogger(__name__)
NAME = 'linuxbridge'
SUPPORTED_INTERFACES = (
portbindings.VIF_TYPE_BRIDGE,
)
SUPPORTED_SEGMENTATION_TYPES = (
trunk_consts.VLAN,
)
class LinuxBridgeDriver(base.DriverBase):
"""Server-side Trunk driver for the ML2 Linux Bridge driver."""
@property
def is_loaded(self):
try:
return NAME in cfg.CONF.ml2.mechanism_drivers
except cfg.NoSuchOptError:
return False
@classmethod
def create(cls):
return cls(NAME, SUPPORTED_INTERFACES, SUPPORTED_SEGMENTATION_TYPES,
constants.AGENT_TYPE_LINUXBRIDGE, can_trunk_bound_port=True)
def register():
# NOTE(kevinbenton): the thing that is keeping this from being
# immediately garbage collected is that it registers callbacks
LinuxBridgeDriver.create()
LOG.debug("Linux bridge trunk driver initialized.")