os-vif/vif_plug_linux_bridge/linux_bridge.py
Rodolfo Alonso Hernandez 0805101573 Add Port Profile info to VIF objects Linux Bridge plugin
Added the Port Profile information to each VIF type in
``vif_plug_linux_bridge``. This information will be populated to
Nova trough os_vif.host_info function.

Change-Id: Ib693388f7a7eb9aa359976a1d0aba35e5b325ddb
Blueprint: vif-port-profile
2017-10-04 15:12:12 +01:00

118 lines
4.8 KiB
Python

# Derived from nova/virt/libvirt/vif.py
#
# Copyright (C) 2011 Midokura KK
# Copyright (C) 2011 Nicira, Inc
# Copyright 2011 OpenStack Foundation
# 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 os_vif import objects
from os_vif import plugin
from oslo_config import cfg
from vif_plug_linux_bridge import constants
from vif_plug_linux_bridge import iptables
from vif_plug_linux_bridge import linux_net
class LinuxBridgePlugin(plugin.PluginBase):
"""A VIF type that uses a standard Linux bridge device."""
CONFIG_OPTS = (
cfg.BoolOpt('use_ipv6',
default=False,
help='Use IPv6',
deprecated_group="DEFAULT"),
cfg.StrOpt('iptables_top_regex',
default='',
help='Regular expression to match the iptables rule that '
'should always be on the top.',
deprecated_group="DEFAULT"),
cfg.StrOpt('iptables_bottom_regex',
default='',
help='Regular expression to match the iptables rule that '
'should always be on the bottom.',
deprecated_group="DEFAULT"),
cfg.StrOpt('iptables_drop_action',
default='DROP',
help='The table that iptables to jump to when a packet is '
'to be dropped.',
deprecated_group="DEFAULT"),
cfg.MultiStrOpt('forward_bridge_interface',
default=['all'],
help='An interface that bridges can forward to. If '
'this is set to all then all traffic will be '
'forwarded. Can be specified multiple times.',
deprecated_group="DEFAULT"),
cfg.StrOpt('vlan_interface',
help='VLANs will bridge into this interface if set',
deprecated_group="DEFAULT"),
cfg.StrOpt('flat_interface',
help='FlatDhcp will bridge into this interface if set',
deprecated_group="DEFAULT"),
cfg.IntOpt('network_device_mtu',
default=1500,
help='MTU setting for network interface.',
deprecated_group="DEFAULT"),
)
def __init__(self, config):
super(LinuxBridgePlugin, self).__init__(config)
ipm = iptables.IptablesManager(
use_ipv6=config.use_ipv6,
iptables_top_regex=config.iptables_top_regex,
iptables_bottom_regex=config.iptables_bottom_regex,
iptables_drop_action=config.iptables_drop_action,
forward_bridge_interface=config.forward_bridge_interface)
linux_net.configure(ipm)
def describe(self):
return objects.host_info.HostPluginInfo(
plugin_name=constants.PLUGIN_NAME,
vif_info=[
objects.host_info.HostVIFInfo(
vif_object_name=objects.vif.VIFBridge.__name__,
min_version="1.0",
max_version="1.0",
# NOTE(ralonsoh): currently 'supported_port_profiles' is
# only being used with OVS HostVIFInfo objects.
supported_port_profiles=[]),
])
def plug(self, vif, instance_info):
"""Ensure that the bridge exists, and add VIF to it."""
network = vif.network
bridge_name = vif.bridge_name
if not network.multi_host and network.should_provide_bridge:
mtu = network.mtu or self.config.network_device_mtu
if network.should_provide_vlan:
iface = self.config.vlan_interface or network.bridge_interface
linux_net.ensure_vlan_bridge(network.vlan,
bridge_name, iface, mtu=mtu)
else:
iface = self.config.flat_interface or network.bridge_interface
# only put in iptables rules if Neutron not filtering
install_filters = not vif.has_traffic_filtering
linux_net.ensure_bridge(bridge_name, iface,
filtering=install_filters, mtu=mtu)
def unplug(self, vif, instance_info):
# Nothing required to unplug a port for a VIF using standard
# Linux bridge device...
pass