77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 Nicira Networks, Inc.
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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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# @author: Somik Behera, Nicira Networks, Inc.
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# @author: Brad Hall, Nicira Networks, Inc.
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# @author: Dan Wendlandt, Nicira Networks, Inc.
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from sqlalchemy.orm import exc
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import quantum.db.api as db
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import quantum.db.models as models
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import ovs_models
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def get_vlans():
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session = db.get_session()
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try:
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bindings = session.query(ovs_models.VlanBinding).\
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all()
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except exc.NoResultFound:
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return []
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res = []
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for x in bindings:
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res.append((x.vlan_id, x.network_id))
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return res
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def add_vlan_binding(vlanid, netid):
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session = db.get_session()
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binding = ovs_models.VlanBinding(vlanid, netid)
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session.add(binding)
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session.flush()
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return binding.vlan_id
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def remove_vlan_binding(netid):
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session = db.get_session()
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try:
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binding = session.query(ovs_models.VlanBinding).\
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filter_by(network_id=netid).\
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one()
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session.delete(binding)
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except exc.NoResultFound:
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pass
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session.flush()
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def update_network_binding(netid, ifaceid):
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session = db.get_session()
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# Add to or delete from the bindings table
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if ifaceid == None:
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try:
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binding = session.query(ovs_models.NetworkBinding).\
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filter_by(network_id=netid).\
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one()
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session.delete(binding)
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except exc.NoResultFound:
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raise Exception("No binding found with network_id = %s" % netid)
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else:
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binding = ovs_models.NetworkBinding(netid, ifaceid)
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session.add(binding)
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session.flush()
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