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# Copyright (c) 2014 Thales Services SAS
# 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 mock
from testtools import matchers
from neutron.common import exceptions as exc
import neutron.db.api as db
from neutron.plugins.common import constants as p_const
from neutron.plugins.common import utils as plugin_utils
from neutron.plugins.ml2 import config
from neutron.plugins.ml2 import driver_api as api
from neutron.plugins.ml2.drivers import type_vlan
from neutron.tests.unit import testlib_api
PROVIDER_NET = 'phys_net1'
TENANT_NET = 'phys_net2'
VLAN_MIN = 200
VLAN_MAX = 209
NETWORK_VLAN_RANGES = [PROVIDER_NET, "%s:%s:%s" %
(TENANT_NET, VLAN_MIN, VLAN_MAX)]
UPDATED_VLAN_RANGES = {
PROVIDER_NET: [],
TENANT_NET: [(VLAN_MIN + 5, VLAN_MAX + 5)],
}
class VlanTypeTest(testlib_api.SqlTestCase):
def setUp(self):
super(VlanTypeTest, self).setUp()
config.cfg.CONF.set_override('network_vlan_ranges',
NETWORK_VLAN_RANGES,
group='ml2_type_vlan')
self.network_vlan_ranges = plugin_utils.parse_network_vlan_ranges(
NETWORK_VLAN_RANGES)
self.driver = type_vlan.VlanTypeDriver()
self.driver._sync_vlan_allocations()
self.session = db.get_session()
self.driver.physnet_mtus = []
def test_parse_network_exception_handling(self):
with mock.patch.object(plugin_utils,
'parse_network_vlan_ranges') as parse_ranges:
parse_ranges.side_effect = Exception('any exception')
self.assertRaises(SystemExit,
self.driver._parse_network_vlan_ranges)
def _get_allocation(self, session, segment):
return session.query(type_vlan.VlanAllocation).filter_by(
physical_network=segment[api.PHYSICAL_NETWORK],
vlan_id=segment[api.SEGMENTATION_ID]).first()
def test_partial_segment_is_partial_segment(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN}
self.assertTrue(self.driver.is_partial_segment(segment))
def test_specific_segment_is_not_partial_segment(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 1}
self.assertFalse(self.driver.is_partial_segment(segment))
def test_validate_provider_segment(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 1}
self.assertIsNone(self.driver.validate_provider_segment(segment))
def test_validate_provider_segment_without_segmentation_id(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: TENANT_NET}
self.driver.validate_provider_segment(segment)
def test_validate_provider_segment_without_physical_network(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN}
self.driver.validate_provider_segment(segment)
def test_validate_provider_segment_with_missing_physical_network(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.SEGMENTATION_ID: 1}
self.assertRaises(exc.InvalidInput,
self.driver.validate_provider_segment,
segment)
def test_validate_provider_segment_with_invalid_physical_network(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: 'other_phys_net',
api.SEGMENTATION_ID: 1}
self.assertRaises(exc.InvalidInput,
self.driver.validate_provider_segment,
segment)
def test_validate_provider_segment_with_invalid_segmentation_id(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 5000}
self.assertRaises(exc.InvalidInput,
self.driver.validate_provider_segment,
segment)
def test_validate_provider_segment_with_invalid_input(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 1,
'invalid': 1}
self.assertRaises(exc.InvalidInput,
self.driver.validate_provider_segment,
segment)
def test_sync_vlan_allocations(self):
def check_in_ranges(network_vlan_ranges):
vlan_min, vlan_max = network_vlan_ranges[TENANT_NET][0]
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: TENANT_NET}
segment[api.SEGMENTATION_ID] = vlan_min - 1
self.assertIsNone(
self._get_allocation(self.session, segment))
segment[api.SEGMENTATION_ID] = vlan_max + 1
self.assertIsNone(
self._get_allocation(self.session, segment))
segment[api.SEGMENTATION_ID] = vlan_min
self.assertFalse(
self._get_allocation(self.session, segment).allocated)
segment[api.SEGMENTATION_ID] = vlan_max
self.assertFalse(
self._get_allocation(self.session, segment).allocated)
check_in_ranges(self.network_vlan_ranges)
self.driver.network_vlan_ranges = UPDATED_VLAN_RANGES
self.driver._sync_vlan_allocations()
check_in_ranges(UPDATED_VLAN_RANGES)
def test_reserve_provider_segment(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 101}
alloc = self._get_allocation(self.session, segment)
self.assertIsNone(alloc)
observed = self.driver.reserve_provider_segment(self.session, segment)
alloc = self._get_allocation(self.session, observed)
self.assertTrue(alloc.allocated)
def test_reserve_provider_segment_already_allocated(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 101}
observed = self.driver.reserve_provider_segment(self.session, segment)
self.assertRaises(exc.VlanIdInUse,
self.driver.reserve_provider_segment,
self.session,
observed)
def test_reserve_provider_segment_in_tenant_pools(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: TENANT_NET,
api.SEGMENTATION_ID: VLAN_MIN}
alloc = self._get_allocation(self.session, segment)
self.assertFalse(alloc.allocated)
observed = self.driver.reserve_provider_segment(self.session, segment)
alloc = self._get_allocation(self.session, observed)
self.assertTrue(alloc.allocated)
def test_reserve_provider_segment_without_segmentation_id(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: TENANT_NET}
observed = self.driver.reserve_provider_segment(self.session, segment)
alloc = self._get_allocation(self.session, observed)
self.assertTrue(alloc.allocated)
vlan_id = observed[api.SEGMENTATION_ID]
self.assertThat(vlan_id, matchers.GreaterThan(VLAN_MIN - 1))
self.assertThat(vlan_id, matchers.LessThan(VLAN_MAX + 1))
def test_reserve_provider_segment_without_physical_network(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN}
observed = self.driver.reserve_provider_segment(self.session, segment)
alloc = self._get_allocation(self.session, observed)
self.assertTrue(alloc.allocated)
vlan_id = observed[api.SEGMENTATION_ID]
self.assertThat(vlan_id, matchers.GreaterThan(VLAN_MIN - 1))
self.assertThat(vlan_id, matchers.LessThan(VLAN_MAX + 1))
self.assertEqual(TENANT_NET, observed[api.PHYSICAL_NETWORK])
def test_reserve_provider_segment_all_allocateds(self):
for __ in range(VLAN_MIN, VLAN_MAX + 1):
self.driver.allocate_tenant_segment(self.session)
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN}
self.assertRaises(exc.NoNetworkAvailable,
self.driver.reserve_provider_segment,
self.session,
segment)
def test_get_mtu(self):
config.cfg.CONF.set_override('segment_mtu', 1475, group='ml2')
config.cfg.CONF.set_override('path_mtu', 1400, group='ml2')
self.driver.physnet_mtus = {'physnet1': 1450, 'physnet2': 1400}
self.assertEqual(1450, self.driver.get_mtu('physnet1'))
config.cfg.CONF.set_override('segment_mtu', 1375, group='ml2')
config.cfg.CONF.set_override('path_mtu', 1400, group='ml2')
self.driver.physnet_mtus = {'physnet1': 1450, 'physnet2': 1400}
self.assertEqual(1375, self.driver.get_mtu('physnet1'))
config.cfg.CONF.set_override('segment_mtu', 0, group='ml2')
config.cfg.CONF.set_override('path_mtu', 1400, group='ml2')
self.driver.physnet_mtus = {'physnet1': 1450, 'physnet2': 1400}
self.assertEqual(1450, self.driver.get_mtu('physnet1'))
config.cfg.CONF.set_override('segment_mtu', 0, group='ml2')
config.cfg.CONF.set_override('path_mtu', 0, group='ml2')
self.driver.physnet_mtus = {}
self.assertEqual(0, self.driver.get_mtu('physnet1'))
def test_allocate_tenant_segment(self):
for __ in range(VLAN_MIN, VLAN_MAX + 1):
segment = self.driver.allocate_tenant_segment(self.session)
alloc = self._get_allocation(self.session, segment)
self.assertTrue(alloc.allocated)
vlan_id = segment[api.SEGMENTATION_ID]
self.assertThat(vlan_id, matchers.GreaterThan(VLAN_MIN - 1))
self.assertThat(vlan_id, matchers.LessThan(VLAN_MAX + 1))
self.assertEqual(TENANT_NET, segment[api.PHYSICAL_NETWORK])
def test_allocate_tenant_segment_no_available(self):
for __ in range(VLAN_MIN, VLAN_MAX + 1):
self.driver.allocate_tenant_segment(self.session)
segment = self.driver.allocate_tenant_segment(self.session)
self.assertIsNone(segment)
def test_release_segment(self):
segment = self.driver.allocate_tenant_segment(self.session)
self.driver.release_segment(self.session, segment)
alloc = self._get_allocation(self.session, segment)
self.assertFalse(alloc.allocated)
def test_release_segment_unallocated(self):
segment = {api.NETWORK_TYPE: p_const.TYPE_VLAN,
api.PHYSICAL_NETWORK: PROVIDER_NET,
api.SEGMENTATION_ID: 101}
with mock.patch.object(type_vlan.LOG, 'warning') as log_warn:
self.driver.release_segment(self.session, segment)
log_warn.assert_called_once_with(
"No vlan_id %(vlan_id)s found on physical network "
"%(physical_network)s",
{'vlan_id': 101, 'physical_network': PROVIDER_NET})
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