221 lines
9.4 KiB
Python
221 lines
9.4 KiB
Python
# Copyright (c) 2012 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from oslo_config import cfg
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from neutron.api.v2 import attributes
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from neutron.common import constants
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from neutron.common import exceptions as n_exc
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from neutron.common import ipv6_utils
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from neutron.db import db_base_plugin_common
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from neutron.db import db_base_plugin_v2
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from neutron.db import ipam_non_pluggable_backend as non_ipam
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from neutron.db import models_v2
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from neutron.tests import base
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class TestIpamNonPluggableBackend(base.BaseTestCase):
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"""Unit Tests for non pluggable IPAM Logic."""
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def test_generate_ip(self):
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with mock.patch.object(non_ipam.IpamNonPluggableBackend,
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'_try_generate_ip') as generate:
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with mock.patch.object(non_ipam.IpamNonPluggableBackend,
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'_rebuild_availability_ranges') as rebuild:
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non_ipam.IpamNonPluggableBackend._generate_ip('c', 's')
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generate.assert_called_once_with('c', 's')
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self.assertEqual(0, rebuild.call_count)
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def test_generate_ip_exhausted_pool(self):
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with mock.patch.object(non_ipam.IpamNonPluggableBackend,
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'_try_generate_ip') as generate:
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with mock.patch.object(non_ipam.IpamNonPluggableBackend,
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'_rebuild_availability_ranges') as rebuild:
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exception = n_exc.IpAddressGenerationFailure(net_id='n')
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# fail first call but not second
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generate.side_effect = [exception, None]
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non_ipam.IpamNonPluggableBackend._generate_ip('c', 's')
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self.assertEqual(2, generate.call_count)
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rebuild.assert_called_once_with('c', 's')
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def _validate_rebuild_availability_ranges(self, pools, allocations,
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expected):
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ip_qry = mock.Mock()
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ip_qry.with_lockmode.return_value = ip_qry
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ip_qry.filter_by.return_value = allocations
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pool_qry = mock.Mock()
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pool_qry.options.return_value = pool_qry
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pool_qry.with_lockmode.return_value = pool_qry
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pool_qry.filter_by.return_value = pools
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def return_queries_side_effect(*args, **kwargs):
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if args[0] == models_v2.IPAllocation:
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return ip_qry
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if args[0] == models_v2.IPAllocationPool:
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return pool_qry
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context = mock.Mock()
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context.session.query.side_effect = return_queries_side_effect
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subnets = [mock.MagicMock()]
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non_ipam.IpamNonPluggableBackend._rebuild_availability_ranges(
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context, subnets)
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actual = [[args[0].allocation_pool_id,
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args[0].first_ip, args[0].last_ip]
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for _name, args, _kwargs in context.session.add.mock_calls]
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self.assertEqual(expected, actual)
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def test_rebuild_availability_ranges(self):
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pools = [{'id': 'a',
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'first_ip': '192.168.1.3',
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'last_ip': '192.168.1.10'},
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{'id': 'b',
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'first_ip': '192.168.1.100',
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'last_ip': '192.168.1.120'}]
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allocations = [{'ip_address': '192.168.1.3'},
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{'ip_address': '192.168.1.78'},
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{'ip_address': '192.168.1.7'},
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{'ip_address': '192.168.1.110'},
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{'ip_address': '192.168.1.11'},
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{'ip_address': '192.168.1.4'},
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{'ip_address': '192.168.1.111'}]
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expected = [['a', '192.168.1.5', '192.168.1.6'],
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['a', '192.168.1.8', '192.168.1.10'],
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['b', '192.168.1.100', '192.168.1.109'],
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['b', '192.168.1.112', '192.168.1.120']]
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self._validate_rebuild_availability_ranges(pools, allocations,
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expected)
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def test_rebuild_ipv6_availability_ranges(self):
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pools = [{'id': 'a',
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'first_ip': '2001::1',
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'last_ip': '2001::50'},
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{'id': 'b',
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'first_ip': '2001::100',
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'last_ip': '2001::ffff:ffff:ffff:fffe'}]
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allocations = [{'ip_address': '2001::10'},
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{'ip_address': '2001::45'},
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{'ip_address': '2001::60'},
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{'ip_address': '2001::111'},
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{'ip_address': '2001::200'},
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{'ip_address': '2001::ffff:ffff:ffff:ff10'},
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{'ip_address': '2001::ffff:ffff:ffff:f2f0'}]
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expected = [['a', '2001::1', '2001::f'],
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['a', '2001::11', '2001::44'],
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['a', '2001::46', '2001::50'],
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['b', '2001::100', '2001::110'],
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['b', '2001::112', '2001::1ff'],
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['b', '2001::201', '2001::ffff:ffff:ffff:f2ef'],
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['b', '2001::ffff:ffff:ffff:f2f1',
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'2001::ffff:ffff:ffff:ff0f'],
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['b', '2001::ffff:ffff:ffff:ff11',
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'2001::ffff:ffff:ffff:fffe']]
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self._validate_rebuild_availability_ranges(pools, allocations,
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expected)
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def _test__allocate_ips_for_port(self, subnets, port, expected):
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# this test is incompatible with pluggable ipam, because subnets
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# were not actually created, so no ipam_subnet exists
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cfg.CONF.set_override("ipam_driver", None)
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plugin = db_base_plugin_v2.NeutronDbPluginV2()
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with mock.patch.object(db_base_plugin_common.DbBasePluginCommon,
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'_get_subnets') as get_subnets:
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with mock.patch.object(non_ipam.IpamNonPluggableBackend,
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'_check_unique_ip') as check_unique:
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context = mock.Mock()
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get_subnets.return_value = subnets
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check_unique.return_value = True
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actual = plugin.ipam._allocate_ips_for_port(context, port)
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self.assertEqual(expected, actual)
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def test__allocate_ips_for_port_2_slaac_subnets(self):
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subnets = [
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{
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'cidr': u'2001:100::/64',
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'enable_dhcp': True,
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'gateway_ip': u'2001:100::1',
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'id': u'd1a28edd-bd83-480a-bd40-93d036c89f13',
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'ip_version': 6,
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'ipv6_address_mode': None,
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'ipv6_ra_mode': u'slaac'},
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{
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'cidr': u'2001:200::/64',
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'enable_dhcp': True,
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'gateway_ip': u'2001:200::1',
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'id': u'dc813d3d-ed66-4184-8570-7325c8195e28',
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'ip_version': 6,
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'ipv6_address_mode': None,
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'ipv6_ra_mode': u'slaac'}]
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port = {'port': {
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'fixed_ips': attributes.ATTR_NOT_SPECIFIED,
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'mac_address': '12:34:56:78:44:ab',
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'device_owner': 'compute'}}
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expected = []
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for subnet in subnets:
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addr = str(ipv6_utils.get_ipv6_addr_by_EUI64(
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subnet['cidr'], port['port']['mac_address']))
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expected.append({'ip_address': addr, 'subnet_id': subnet['id']})
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self._test__allocate_ips_for_port(subnets, port, expected)
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def test__allocate_ips_for_port_2_slaac_pd_subnets(self):
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subnets = [
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{
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'cidr': constants.PROVISIONAL_IPV6_PD_PREFIX,
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'enable_dhcp': True,
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'gateway_ip': '::1',
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'id': 'd1a28edd-bd83-480a-bd40-93d036c89f13',
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'ip_version': 6,
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'ipv6_address_mode': None,
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'ipv6_ra_mode': 'slaac'},
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{
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'cidr': constants.PROVISIONAL_IPV6_PD_PREFIX,
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'enable_dhcp': True,
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'gateway_ip': '::1',
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'id': 'dc813d3d-ed66-4184-8570-7325c8195e28',
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'ip_version': 6,
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'ipv6_address_mode': None,
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'ipv6_ra_mode': 'slaac'}]
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port = {'port': {
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'network_id': 'fbb9b578-95eb-4b79-a116-78e5c4927176',
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'fixed_ips': attributes.ATTR_NOT_SPECIFIED,
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'mac_address': '12:34:56:78:44:ab',
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'device_owner': 'compute'}}
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expected = []
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for subnet in subnets:
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addr = str(ipv6_utils.get_ipv6_addr_by_EUI64(
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subnet['cidr'], port['port']['mac_address']))
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expected.append({'ip_address': addr, 'subnet_id': subnet['id']})
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self._test__allocate_ips_for_port(subnets, port, expected)
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