OpenStack Networking (Neutron)
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# Copyright (c) 2014 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.
import re
from unittest import mock
import warnings
import netaddr
from neutron_lib.api.definitions import portbindings
from neutron_lib import constants
from neutron_lib import context
from neutron_lib.db import api as db_api
from neutron_lib.plugins import directory
from neutron_lib.plugins.ml2 import api
from oslo_utils import uuidutils
from sqlalchemy.orm import exc
from sqlalchemy.orm import query
from neutron.db import db_base_plugin_v2
from neutron.db.models import l3 as l3_models
from neutron.db import segments_db
from neutron.objects import network as network_obj
from neutron.objects import ports as port_obj
from neutron.plugins.ml2 import db as ml2_db
from neutron.plugins.ml2 import models
from neutron.services.segments import exceptions as seg_exc
from neutron.tests.unit import testlib_api
PLUGIN_NAME = 'ml2'
class Ml2DBTestCase(testlib_api.SqlTestCase):
def setUp(self):
super(Ml2DBTestCase, self).setUp()
self.ctx = context.get_admin_context()
self.setup_coreplugin(PLUGIN_NAME)
def _setup_neutron_network(self, network_id):
network_obj.Network(self.ctx, id=network_id).create()
def _setup_neutron_port(self, network_id, port_id):
mac_address = db_base_plugin_v2.NeutronDbPluginV2._generate_macs()[0]
port = port_obj.Port(self.ctx,
id=port_id,
network_id=network_id,
mac_address=netaddr.EUI(mac_address),
admin_state_up=True,
status='DOWN',
device_id='',
device_owner='')
port.create()
return port
def _setup_neutron_portbinding(self, port_id, vif_type, host,
status=constants.ACTIVE):
with db_api.CONTEXT_WRITER.using(self.ctx):
self.ctx.session.add(models.PortBinding(port_id=port_id,
vif_type=vif_type,
host=host,
status=status))
@staticmethod
def _sort_segments(segments):
return sorted(segments, key=lambda d: d['segmentation_id'])
def _create_segments(self, segments, is_seg_dynamic=False,
network_id=uuidutils.generate_uuid()):
self._setup_neutron_network(network_id)
for segment in segments:
segments_db.add_network_segment(
self.ctx, network_id, segment,
is_dynamic=is_seg_dynamic)
segment['network_id'] = network_id
net_segments = segments_db.get_network_segments(
self.ctx, network_id,
filter_dynamic=is_seg_dynamic)
net_segments = self._sort_segments(net_segments)
for segment_index, segment in enumerate(segments):
self.assertEqual(segment, net_segments[segment_index])
return net_segments
def test_network_segments_for_provider_network(self):
segment = {api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1}
self._create_segments([segment])
def test_network_segments_is_dynamic_true(self):
segment = {api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1}
self._create_segments([segment], is_seg_dynamic=True)
def test_network_segments_for_multiprovider_network(self):
segments = [{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1},
{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 2}]
self._create_segments(segments)
def test_get_networks_segments(self):
net_id1 = uuidutils.generate_uuid()
net_id2 = uuidutils.generate_uuid()
segments1 = [{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1},
{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 2}]
segments2 = [{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 3},
{api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 4}]
net1segs = self._create_segments(segments1, network_id=net_id1)
net2segs = self._create_segments(segments2, network_id=net_id2)
segs = segments_db.get_networks_segments(
self.ctx, [net_id1, net_id2])
self.assertEqual(net1segs, self._sort_segments(segs[net_id1]))
self.assertEqual(net2segs, self._sort_segments(segs[net_id2]))
def test_get_networks_segments_no_segments(self):
net_id1 = uuidutils.generate_uuid()
net_id2 = uuidutils.generate_uuid()
self._create_segments([], network_id=net_id1)
self._create_segments([], network_id=net_id2)
segs = segments_db.get_networks_segments(
self.ctx, [net_id1, net_id2])
self.assertEqual([], segs[net_id1])
self.assertEqual([], segs[net_id2])
def test_get_segment_by_id(self):
segment = {api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1}
net_segment = self._create_segments([segment])[0]
segment_uuid = net_segment[api.ID]
net_segment = segments_db.get_segment_by_id(self.ctx,
segment_uuid)
self.assertEqual(segment, net_segment)
def test_get_segment_by_id_result_not_found(self):
segment_uuid = uuidutils.generate_uuid()
net_segment = segments_db.get_segment_by_id(self.ctx,
segment_uuid)
self.assertIsNone(net_segment)
def test_delete_network_segment(self):
segment = {api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1}
net_segment = self._create_segments([segment])[0]
segment_uuid = net_segment[api.ID]
segments_db.delete_network_segment(self.ctx, segment_uuid)
# Get segment and verify its empty
net_segment = segments_db.get_segment_by_id(self.ctx,
segment_uuid)
self.assertIsNone(net_segment)
def test_get_dynamic_segment(self):
net_id = uuidutils.generate_uuid()
segment1 = {api.NETWORK_TYPE: 'vlan',
api.PHYSICAL_NETWORK: 'physnet1',
api.SEGMENTATION_ID: 1}
self._create_segments(
[segment1], is_seg_dynamic=True, network_id=net_id)
segs1 = segments_db.get_dynamic_segment(
self.ctx, net_id)
self.assertEqual('vlan', segs1[api.NETWORK_TYPE])
self.assertEqual('physnet1', segs1[api.PHYSICAL_NETWORK])
self.assertEqual(1, segs1[api.SEGMENTATION_ID])
segs2 = segments_db.get_dynamic_segment(
self.ctx, net_id, physical_network='physnet1')
self.assertEqual('vlan', segs2[api.NETWORK_TYPE])
self.assertEqual('physnet1', segs2[api.PHYSICAL_NETWORK])
self.assertEqual(1, segs2[api.SEGMENTATION_ID])
segs3 = segments_db.get_dynamic_segment(
self.ctx, net_id, segmentation_id=1)
self.assertEqual('vlan', segs3[api.NETWORK_TYPE])
self.assertEqual('physnet1', segs3[api.PHYSICAL_NETWORK])
self.assertEqual(1, segs3[api.SEGMENTATION_ID])
def test_add_port_binding(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id)
self._setup_neutron_port(network_id, port_id)
port = ml2_db.add_port_binding(self.ctx, port_id)
self.assertEqual(port_id, port.port_id)
self.assertEqual(portbindings.VIF_TYPE_UNBOUND, port.vif_type)
def test_get_port_binding_host(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
host = 'fake_host'
other_host = 'other_fake_host'
vif_type = portbindings.VIF_TYPE_UNBOUND
self._setup_neutron_network(network_id)
self._setup_neutron_port(network_id, port_id)
self._setup_neutron_portbinding(port_id, vif_type, host)
self._setup_neutron_portbinding(port_id, vif_type, other_host,
status=constants.INACTIVE)
port_host = ml2_db.get_port_binding_host(self.ctx, port_id)
self.assertEqual(host, port_host)
def test_get_port_binding_host_multiple_results_found(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
port_id_one = uuidutils.generate_uuid()
port_id_two = uuidutils.generate_uuid()
# NOTE(manjeets) to check startswith testcase we
# need port ids with same prefix
port_id_one = port_id[:8] + port_id_one[8:]
port_id_two = port_id[:8] + port_id_two[8:]
host = 'fake_host'
vif_type = portbindings.VIF_TYPE_UNBOUND
self._setup_neutron_network(network_id)
self._setup_neutron_port(network_id, port_id_one)
self._setup_neutron_portbinding(port_id_one, vif_type, host)
self._setup_neutron_port(network_id, port_id_two)
self._setup_neutron_portbinding(port_id_two, vif_type, host)
port_host = ml2_db.get_port_binding_host(self.ctx, port_id[:8])
self.assertIsNone(port_host)
def test_get_port_binding_host_result_not_found(self):
port_id = uuidutils.generate_uuid()
port_host = ml2_db.get_port_binding_host(self.ctx, port_id)
self.assertIsNone(port_host)
def test_get_port(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id)
self._setup_neutron_port(network_id, port_id)
port = ml2_db.get_port(self.ctx, port_id)
self.assertEqual(port_id, port.id)
def test_get_port_multiple_results_found(self):
with mock.patch(
'sqlalchemy.orm.query.Query.one',
side_effect=exc.MultipleResultsFound):
port = ml2_db.get_port(self.ctx, 'unused')
self.assertIsNone(port)
def test_get_port_result_not_found(self):
port_id = uuidutils.generate_uuid()
port = ml2_db.get_port(self.ctx, port_id)
self.assertIsNone(port)
def test_get_port_from_device_mac(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id)
port = self._setup_neutron_port(network_id, port_id)
observed_port = ml2_db.get_port_from_device_mac(self.ctx,
port['mac_address'])
self.assertEqual(port_id, observed_port.id)
def test_generating_multiple_mac_addresses(self):
mac_regex = "^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$"
macs = db_base_plugin_v2.NeutronDbPluginV2._generate_macs()
self.assertEqual(1, len(macs))
self.assertIsNotNone(re.search(mac_regex, macs[0]))
macs = db_base_plugin_v2.NeutronDbPluginV2._generate_macs(5)
self.assertEqual(5, len(macs))
for mac in macs:
self.assertIsNotNone(re.search(mac_regex, mac))
def test__prevent_segment_delete_with_port_bound_raise(self):
payload_mock = mock.Mock()
payload_mock.metadata.get.return_value = False
payload_mock.context = self.ctx
with mock.patch.object(
port_obj.Port,
'get_auto_deletable_port_ids_and_proper_port_count_by_segment'
) as mock_get:
mock_get.return_value = ([], 1)
self.assertRaises(
seg_exc.SegmentInUse,
ml2_db._prevent_segment_delete_with_port_bound,
resource=mock.Mock(),
event=mock.Mock(),
trigger=mock.Mock(),
payload=payload_mock,
)
def test__prevent_segment_delete_with_port_bound_auto_delete(self):
payload_mock = mock.Mock()
payload_mock.metadata.get.return_value = False
payload_mock.context = self.ctx
plugin = directory.get_plugin()
with mock.patch.object(
port_obj.Port,
'get_auto_deletable_port_ids_and_proper_port_count_by_segment'
) as mock_get, \
mock.patch.object(plugin, 'delete_port') as mock_delete_port:
mock_get.return_value = (['fake-port'], 0)
ml2_db._prevent_segment_delete_with_port_bound(
resource=mock.Mock(),
event=mock.Mock(),
trigger=mock.Mock(),
payload=payload_mock,
)
mock_delete_port.assert_called_with(mock.ANY, 'fake-port')
class Ml2DvrDBTestCase(testlib_api.SqlTestCase):
def setUp(self):
super(Ml2DvrDBTestCase, self).setUp()
self.ctx = context.get_admin_context()
self.setup_coreplugin(PLUGIN_NAME)
def _setup_neutron_network(self, network_id, port_ids):
with db_api.CONTEXT_WRITER.using(self.ctx):
network_obj.Network(self.ctx, id=network_id).create()
ports = []
for port_id in port_ids:
mac_address = (db_base_plugin_v2.NeutronDbPluginV2.
_generate_macs()[0])
port = port_obj.Port(self.ctx,
id=port_id,
network_id=network_id,
mac_address=netaddr.EUI(mac_address),
admin_state_up=True,
status='ACTIVE',
device_id='',
device_owner='')
port.create()
ports.append(port)
return ports
def _setup_neutron_router(self):
with db_api.CONTEXT_WRITER.using(self.ctx):
router = l3_models.Router()
self.ctx.session.add(router)
return router
def _setup_distributed_binding(self, network_id,
port_id, router_id, host_id):
with db_api.CONTEXT_WRITER.using(self.ctx):
record = models.DistributedPortBinding(
port_id=port_id,
host=host_id,
router_id=router_id,
vif_type=portbindings.VIF_TYPE_UNBOUND,
vnic_type=portbindings.VNIC_NORMAL,
status='DOWN')
self.ctx.session.add(record)
return record
def test_ensure_distributed_port_binding_deals_with_db_duplicate(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
router_id = 'foo_router_id'
host_id = 'foo_host_id'
self._setup_neutron_network(network_id, [port_id])
self._setup_distributed_binding(network_id, port_id,
router_id, host_id)
with mock.patch.object(query.Query, 'first') as query_first:
query_first.return_value = []
with mock.patch.object(ml2_db.LOG, 'debug') as log_trace:
binding = ml2_db.ensure_distributed_port_binding(
self.ctx, port_id, host_id, router_id)
self.assertTrue(query_first.called)
self.assertTrue(log_trace.called)
self.assertEqual(port_id, binding.port_id)
def test_ensure_distributed_port_binding(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id, [port_id])
router = self._setup_neutron_router()
ml2_db.ensure_distributed_port_binding(
self.ctx, port_id, 'foo_host', router.id)
expected = (self.ctx.session.query(models.DistributedPortBinding).
filter_by(port_id=port_id).one())
self.assertEqual(port_id, expected.port_id)
def test_ensure_distributed_port_binding_multiple_bindings(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id, [port_id])
router = self._setup_neutron_router()
ml2_db.ensure_distributed_port_binding(
self.ctx, port_id, 'foo_host_1', router.id)
ml2_db.ensure_distributed_port_binding(
self.ctx, port_id, 'foo_host_2', router.id)
bindings = (self.ctx.session.query(models.DistributedPortBinding).
filter_by(port_id=port_id).all())
self.assertEqual(2, len(bindings))
def test_delete_distributed_port_binding_if_stale(self):
network_id = uuidutils.generate_uuid()
port_id = uuidutils.generate_uuid()
self._setup_neutron_network(network_id, [port_id])
binding = self._setup_distributed_binding(
network_id, port_id, None, 'foo_host_id')
ml2_db.delete_distributed_port_binding_if_stale(self.ctx,
binding)
count = (self.ctx.session.query(models.DistributedPortBinding).
filter_by(port_id=binding.port_id).count())
self.assertFalse(count)
def test_get_distributed_port_binding_by_host_not_found(self):
port = ml2_db.get_distributed_port_binding_by_host(
self.ctx, 'foo_port_id', 'foo_host_id')
self.assertIsNone(port)
def test_get_distributed_port_bindings_not_found(self):
port = ml2_db.get_distributed_port_bindings(self.ctx,
'foo_port_id')
self.assertFalse(len(port))
def test_get_distributed_port_bindings(self):
network_id = uuidutils.generate_uuid()
port_id_1 = uuidutils.generate_uuid()
port_id_2 = uuidutils.generate_uuid()
self._setup_neutron_network(network_id, [port_id_1, port_id_2])
router = self._setup_neutron_router()
self._setup_distributed_binding(
network_id, port_id_1, router.id, 'foo_host_id_1')
self._setup_distributed_binding(
network_id, port_id_1, router.id, 'foo_host_id_2')
ports = ml2_db.get_distributed_port_bindings(self.ctx,
port_id_1)
self.assertEqual(2, len(ports))
def test_distributed_port_binding_deleted_by_port_deletion(self):
network_id = uuidutils.generate_uuid()
network_obj.Network(self.ctx, id=network_id).create()
device_owner = constants.DEVICE_OWNER_DVR_INTERFACE
port = port_obj.Port(
self.ctx,
id=uuidutils.generate_uuid(),
network_id=network_id,
mac_address=netaddr.EUI('00-11-22-33-44-55'),
admin_state_up=True,
status=constants.PORT_STATUS_ACTIVE,
device_id='device_id',
device_owner=device_owner)
port.create()
port_obj.DistributedPortBinding(
self.ctx,
port_id=port.id,
host='host',
vif_type=portbindings.VIF_TYPE_UNBOUND,
vnic_type=portbindings.VNIC_NORMAL,
router_id='router_id',
status=constants.PORT_STATUS_DOWN).create()
port_obj.DistributedPortBinding(
self.ctx,
port_id=port.id,
host='another-host',
vif_type=portbindings.VIF_TYPE_UNBOUND,
vnic_type=portbindings.VNIC_NORMAL,
router_id='router_id',
status=constants.PORT_STATUS_DOWN).create()
with warnings.catch_warnings(record=True) as warning_list:
port.delete()
self.assertEqual(
[], warning_list,
'Warnings: %s' % ';'.join([str(w) for w in warning_list]))
ports = ml2_db.get_distributed_port_bindings(self.ctx,
port.id)
self.assertEqual(0, len(ports))