81 lines
3.1 KiB
Python
81 lines
3.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2011 Citrix Systems, Inc.
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# Copyright 2011 OpenStack LLC.
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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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"""VIF drivers for VMWare."""
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from nova import exception
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from nova.openstack.common import cfg
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from nova.openstack.common import log as logging
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from nova.virt.vmwareapi import network_utils
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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vmwareapi_vif_opts = [
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cfg.StrOpt('vmwareapi_vlan_interface',
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default='vmnic0',
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help='Physical ethernet adapter name for vlan networking'),
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]
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CONF.register_opts(vmwareapi_vif_opts)
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def ensure_vlan_bridge(self, session, network):
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"""Create a vlan and bridge unless they already exist."""
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vlan_num = network['vlan']
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bridge = network['bridge']
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vlan_interface = CONF.vmwareapi_vlan_interface
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# Check if the vlan_interface physical network adapter exists on the
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# host.
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if not network_utils.check_if_vlan_interface_exists(session,
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vlan_interface):
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raise exception.NetworkAdapterNotFound(adapter=vlan_interface)
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# Get the vSwitch associated with the Physical Adapter
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vswitch_associated = network_utils.get_vswitch_for_vlan_interface(
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session, vlan_interface)
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if vswitch_associated is None:
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raise exception.SwitchNotFoundForNetworkAdapter(
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adapter=vlan_interface)
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# Check whether bridge already exists and retrieve the the ref of the
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# network whose name_label is "bridge"
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network_ref = network_utils.get_network_with_the_name(session, bridge)
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if network_ref is None:
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# Create a port group on the vSwitch associated with the
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# vlan_interface corresponding physical network adapter on the ESX
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# host.
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network_utils.create_port_group(session, bridge,
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vswitch_associated, vlan_num)
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else:
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# Get the vlan id and vswitch corresponding to the port group
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_get_pg_info = network_utils.get_vlanid_and_vswitch_for_portgroup
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pg_vlanid, pg_vswitch = _get_pg_info(session, bridge)
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# Check if the vswitch associated is proper
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if pg_vswitch != vswitch_associated:
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raise exception.InvalidVLANPortGroup(
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bridge=bridge, expected=vswitch_associated,
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actual=pg_vswitch)
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# Check if the vlan id is proper for the port group
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if pg_vlanid != vlan_num:
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raise exception.InvalidVLANTag(bridge=bridge, tag=vlan_num,
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pgroup=pg_vlanid)
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