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# 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.
import testscenarios
import time
from unittest import mock
import uuid
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_utils import uuidutils
from os_vif import objects
from vif_plug_ovs import constants
from vif_plug_ovs import ovs
from vif_plug_ovs.ovsdb import ovsdb_lib
from vif_plug_ovs import privsep
from vif_plug_ovs.tests.functional import base
CONF = cfg.CONF
@privsep.vif_plug.entrypoint
def run_privileged(*full_args):
return processutils.execute(*full_args)[0].rstrip()
# derived from test_impl_pyroute2
def exist_device(device):
try:
run_privileged('ip', 'link', 'show', device)
return True
except processutils.ProcessExecutionError as e:
if e.exit_code == 1:
return False
raise
def add_device(device, dev_type, peer=None, link=None,
vlan_id=None):
if 'vlan' == dev_type:
run_privileged('ip', 'link', 'add', 'link', link,
'name', device, 'type', dev_type, 'vlan', 'id',
vlan_id)
elif 'veth' == dev_type:
run_privileged('ip', 'link', 'add', device, 'type', dev_type,
'peer', 'name', peer)
elif 'dummy' == dev_type:
run_privileged('ip', 'link', 'add', device, 'type', dev_type)
# ensure that the device exists to prevent racing with other ip commands
for _ in range(10):
if exist_device(device):
return
time.sleep(0.1)
def del_device(device):
if exist_device(device):
run_privileged('ip', 'link', 'del', device)
class TestOVSPlugin(testscenarios.WithScenarios,
base.VifPlugOvsBaseFunctionalTestCase):
scenarios = [
('native', {'interface': 'native'}),
('vsctl', {'interface': 'vsctl'})
]
def setUp(self):
super(TestOVSPlugin, self).setUp()
run_privileged('ovs-vsctl', 'set-manager', 'ptcp:6640')
self.plugin = ovs.OvsPlugin.load(constants.PLUGIN_NAME)
self.flags(ovsdb_interface=self.interface, group='os_vif_ovs')
self.ovs = ovsdb_lib.BaseOVS(CONF.os_vif_ovs)
self._ovsdb = self.ovs.ovsdb
self.profile_ovs = objects.vif.VIFPortProfileOpenVSwitch(
interface_id='e65867e0-9340-4a7f-a256-09af6eb7a3aa',
datapath_type='netdev')
self.subnet_bridge_4 = objects.subnet.Subnet(
cidr='101.168.1.0/24',
dns=['8.8.8.8'],
gateway='101.168.1.1',
dhcp_server='191.168.1.1')
self.subnet_bridge_6 = objects.subnet.Subnet(
cidr='101:1db9::/64',
gateway='101:1db9::1')
self.subnets = objects.subnet.SubnetList(
objects=[self.subnet_bridge_4,
self.subnet_bridge_6])
self.network_ovs_trunk = objects.network.Network(
id='437c6db5-4e6f-4b43-b64b-ed6a11ee5ba7',
bridge='%s01' % constants.TRUNK_BR_PREFIX,
subnets=self.subnets,
vlan=99)
self.vif_vhostuser_trunk = objects.vif.VIFVHostUser(
id='b679325f-ca89-4ee0-a8be-6db1409b69ea',
address='ca:fe:de:ad:be:ef',
network=self.network_ovs_trunk,
path='/var/run/openvswitch/vhub679325f-ca',
mode='client',
port_profile=self.profile_ovs)
self.profile_ovs_system = objects.vif.VIFPortProfileOpenVSwitch(
interface_id='e65867e0-9340-4a7f-a256-09af6eb7a3aa',
datapath_type='system',
create_port=True)
self.network_ovs = objects.network.Network(
id='437c6db5-4e6f-4b43-b64b-ed6a11ee5ba7',
bridge='br-qos-' + self.interface,
subnets=self.subnets,
vlan=99)
self.vif_ovs_port = objects.vif.VIFOpenVSwitch(
id='b679325f-ca89-4ee0-a8be-6db1409b69ea',
address='ca:fe:de:ad:be:ef',
network=self.network_ovs,
port_profile=self.profile_ovs_system,
vif_name="qos-port-" + self.interface)
self.instance = objects.instance_info.InstanceInfo(
name='demo',
uuid='f0000000-0000-0000-0000-000000000001')
def test_plug_unplug_ovs_vhostuser_trunk(self):
trunk_bridge = '%s01' % constants.TRUNK_BR_PREFIX
self.plugin.plug(self.vif_vhostuser_trunk, self.instance)
self.addCleanup(self._del_bridge, trunk_bridge)
self.assertTrue(self._check_bridge(trunk_bridge))
other_bridge = 'br-%s' % uuidutils.generate_uuid()
self._add_bridge(other_bridge)
self.addCleanup(self._del_bridge, other_bridge)
self.plugin.unplug(self.vif_vhostuser_trunk, self.instance)
self.assertTrue(self._check_bridge(other_bridge))
self.assertFalse(self._check_bridge(trunk_bridge))
def test_plug_unplug_ovs_port_with_qos(self):
bridge = 'br-qos-' + self.interface
vif_name = "qos-port-" + self.interface
qos_type = CONF.os_vif_ovs.default_qos_type
self.addCleanup(self._del_bridge, bridge)
self.addCleanup(
self.ovs.delete_ovs_vif_port, bridge, vif_name,
delete_netdev=False, qos_type=qos_type
)
self.addCleanup(del_device, vif_name)
add_device(vif_name, 'dummy')
# pluging a vif will create the port and bridge
# if either does not exist
self.plugin.plug(self.vif_ovs_port, self.instance)
self.assertTrue(self._check_bridge(bridge))
self.assertTrue(self._check_port(vif_name, bridge))
qos_uuid = self.ovs.get_qos(
vif_name, qos_type
)[0]['_uuid']
self._check_parameter('Port', vif_name, 'qos', qos_uuid)
self._check_parameter(
'QoS', str(qos_uuid), 'type', qos_type
)
# unpluging a port will not delete the bridge.
self.plugin.unplug(self.vif_ovs_port, self.instance)
self.assertTrue(self._check_bridge(bridge))
self.assertFalse(self._check_port(vif_name, bridge))
self._check_parameter(
'QoS', str(qos_uuid), 'type', None
)
def test_plug_br_int_isolate_vif_dead_vlan(self):
with mock.patch.object(self.plugin.config, 'isolate_vif', True):
network = objects.network.Network(
id='5449523c-3a08-11ef-86d6-17149687aa4d',
bridge='br-5449523c',
subnets=self.subnets,
vlan=99)
vif = objects.vif.VIFOpenVSwitch(
id='85cb9bc6-3a08-11ef-b2d4-9b7c38edd677',
address='ca:fe:de:ad:be:ef',
network=network,
port_profile=self.profile_ovs_system,
vif_name="port-85cb9bc6")
self.plugin.plug(vif, self.instance)
self.addCleanup(self._del_bridge, 'br-5449523c')
self._check_parameter('Port', vif.vif_name, 'tag', 4095)
def test_plug_trunk_bridge_ignores_isolate_vif(self):
with mock.patch.object(self.plugin.config, 'isolate_vif', True):
network = objects.network.Network(
id='ef98b384-3a0f-11ef-9009-47345fca266f',
bridge='tbr-ef98b384',
subnets=self.subnets,
vlan=99)
vif = objects.vif.VIFOpenVSwitch(
id='631f52bc-3a07-11ef-a006-1319ef9d6edd',
address='ca:fe:de:ad:be:ef',
network=network,
port_profile=self.profile_ovs_system,
vif_name='port-631f52bc')
self.plugin.plug(vif, self.instance)
self.addCleanup(self._del_bridge, 'tbr-ef98b384')
self._check_parameter('Port', vif.vif_name, 'tag', [])
def test_plug_trunk_bridge_fills_bridge_name(self):
mac = 'ca:fe:de:ad:be:ef'
iface_id = str(uuid.uuid4())
vif_name = 'port-%s' % iface_id[:8]
trunk_id = str(uuid.uuid4())
bridge_name = 'tbr-%s' % trunk_id[:8]
network = objects.network.Network(
id=trunk_id,
bridge=bridge_name,
subnets=self.subnets,
vlan=99)
vif = objects.vif.VIFOpenVSwitch(
id=iface_id,
address=mac,
network=network,
port_profile=self.profile_ovs_system,
vif_name=vif_name)
self.plugin.plug(vif, self.instance)
self.addCleanup(self._del_bridge, bridge_name)
expected_external_ids = {
'attached-mac': mac,
'bridge_name': bridge_name,
'iface-id': self.profile_ovs.interface_id,
'iface-status': 'active',
'vm-uuid': self.instance.uuid,
}
self._check_parameter('Interface', vif.vif_name,
'external_ids', expected_external_ids)
def test_plug_non_trunk_leave_bridge_name_empty(self):
mac = 'ca:fe:de:ad:be:ef'
iface_id = str(uuid.uuid4())
vif_name = 'port-%s' % iface_id[:8]
bridge_name = 'br-something'
network = objects.network.Network(
id=str(uuid.uuid4()),
bridge=bridge_name,
subnets=self.subnets,
vlan=99)
vif = objects.vif.VIFOpenVSwitch(
id=iface_id,
address=mac,
network=network,
port_profile=self.profile_ovs_system,
vif_name=vif_name)
self.plugin.plug(vif, self.instance)
self.addCleanup(self._del_bridge, bridge_name)
# bridge_name is filled only in case of trunk plug
expected_external_ids = {
'attached-mac': mac,
'iface-id': self.profile_ovs.interface_id,
'iface-status': 'active',
'vm-uuid': self.instance.uuid,
}
self._check_parameter('Interface', vif.vif_name,
'external_ids', expected_external_ids)
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