vmware-nsx/vmware_nsx/db/maclearning.py
Gary Kotton 006231cf7d NSX-V: add support for mac learning extension
Enable a port to set the mac learning property. This will configure
the port group to be in 'forget transmit' and 'promiscuous'.

This will enable an embedded hypervisor to be run with the NSX-V

Mac learning can only be configured if there is no port security
and security groups configured

Change-Id: I9cb36d877669fbd682cb7a9c0a88a172a31aeebb
2017-10-04 10:02:48 +00:00

79 lines
3.0 KiB
Python

# Copyright 2013 VMware, Inc. 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 sqlalchemy.orm import exc
from neutron.db import _model_query as model_query
from neutron.db import _resource_extend as resource_extend
from neutron.db import _utils as db_utils
from neutron.db import api as db_api
from neutron_lib.api.definitions import port as port_def
from oslo_log import log as logging
from vmware_nsx.db import nsx_models
from vmware_nsx.extensions import maclearning as mac
LOG = logging.getLogger(__name__)
@resource_extend.has_resource_extenders
class MacLearningDbMixin(object):
"""Mixin class for mac learning."""
def _make_mac_learning_state_dict(self, port, fields=None):
res = {'port_id': port['port_id'],
mac.MAC_LEARNING: port[mac.MAC_LEARNING]}
return db_utils.resource_fields(res, fields)
@staticmethod
@resource_extend.extends([port_def.COLLECTION_NAME])
def _extend_port_mac_learning_state(port_res, port_db):
state = port_db.mac_learning_state
if state and state.mac_learning_enabled:
port_res[mac.MAC_LEARNING] = state.mac_learning_enabled
def _update_mac_learning_state(self, context, port_id, enabled):
try:
query = model_query.query_with_hooks(
context, nsx_models.MacLearningState)
state = query.filter(
nsx_models.MacLearningState.port_id == port_id).one()
state.update({mac.MAC_LEARNING: enabled})
except exc.NoResultFound:
self._create_mac_learning_state(context,
{'id': port_id,
mac.MAC_LEARNING: enabled})
def _create_mac_learning_state(self, context, port):
with db_api.context_manager.writer.using(context):
enabled = port[mac.MAC_LEARNING]
state = nsx_models.MacLearningState(
port_id=port['id'],
mac_learning_enabled=enabled)
context.session.add(state)
return self._make_mac_learning_state_dict(state)
def get_mac_learning_state(self, context, port_id):
try:
query = model_query.query_with_hooks(
context, nsx_models.MacLearningState)
state = query.filter(
nsx_models.MacLearningState.port_id == port_id).one()
return state.mac_learning_enabled
except exc.NoResultFound:
return None