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