431 lines
17 KiB
Python
431 lines
17 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Nicira, Inc.
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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 copy
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import mock
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from oslo.config import cfg
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from quantum.agent.common import config as agent_config
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from quantum.agent import l3_agent
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from quantum.agent.linux import interface
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from quantum.common import config as base_config
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from quantum.common import constants as l3_constants
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from quantum.openstack.common import uuidutils
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from quantum.tests import base
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_uuid = uuidutils.generate_uuid
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HOSTNAME = 'myhost'
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class TestBasicRouterOperations(base.BaseTestCase):
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def setUp(self):
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super(TestBasicRouterOperations, self).setUp()
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self.conf = cfg.ConfigOpts()
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self.conf.register_opts(base_config.core_opts)
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self.conf.register_opts(l3_agent.L3NATAgent.OPTS)
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agent_config.register_root_helper(self.conf)
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self.conf.register_opts(interface.OPTS)
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self.conf.set_override('interface_driver',
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'quantum.agent.linux.interface.NullDriver')
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self.conf.root_helper = 'sudo'
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self.device_exists_p = mock.patch(
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'quantum.agent.linux.ip_lib.device_exists')
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self.device_exists = self.device_exists_p.start()
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self.utils_exec_p = mock.patch(
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'quantum.agent.linux.utils.execute')
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self.utils_exec = self.utils_exec_p.start()
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self.external_process_p = mock.patch(
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'quantum.agent.linux.external_process.ProcessManager')
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self.external_process = self.external_process_p.start()
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self.dvr_cls_p = mock.patch('quantum.agent.linux.interface.NullDriver')
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driver_cls = self.dvr_cls_p.start()
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self.mock_driver = mock.MagicMock()
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self.mock_driver.DEV_NAME_LEN = (
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interface.LinuxInterfaceDriver.DEV_NAME_LEN)
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driver_cls.return_value = self.mock_driver
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self.ip_cls_p = mock.patch('quantum.agent.linux.ip_lib.IPWrapper')
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ip_cls = self.ip_cls_p.start()
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self.mock_ip = mock.MagicMock()
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ip_cls.return_value = self.mock_ip
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self.l3pluginApi_cls_p = mock.patch(
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'quantum.agent.l3_agent.L3PluginApi')
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l3pluginApi_cls = self.l3pluginApi_cls_p.start()
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self.plugin_api = mock.Mock()
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l3pluginApi_cls.return_value = self.plugin_api
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def tearDown(self):
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self.device_exists_p.stop()
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self.l3pluginApi_cls_p.stop()
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self.ip_cls_p.stop()
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self.dvr_cls_p.stop()
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self.utils_exec_p.stop()
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self.external_process_p.stop()
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super(TestBasicRouterOperations, self).tearDown()
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def testRouterInfoCreate(self):
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id = _uuid()
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ri = l3_agent.RouterInfo(id, self.conf.root_helper,
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self.conf.use_namespaces, None)
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self.assertTrue(ri.ns_name().endswith(id))
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def testAgentCreate(self):
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l3_agent.L3NATAgent(HOSTNAME, self.conf)
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def _test_internal_network_action(self, action):
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port_id = _uuid()
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router_id = _uuid()
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network_id = _uuid()
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces, None)
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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cidr = '99.0.1.9/24'
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mac = 'ca:fe:de:ad:be:ef'
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ex_gw_port = {'fixed_ips': [{'ip_address': '20.0.0.30'}]}
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if action == 'add':
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self.device_exists.return_value = False
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agent.internal_network_added(ri, ex_gw_port, network_id,
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port_id, cidr, mac)
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self.assertEqual(self.mock_driver.plug.call_count, 1)
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self.assertEqual(self.mock_driver.init_l3.call_count, 1)
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elif action == 'remove':
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self.device_exists.return_value = True
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agent.internal_network_removed(ri, ex_gw_port, port_id, cidr)
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self.assertEqual(self.mock_driver.unplug.call_count, 1)
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else:
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raise Exception("Invalid action %s" % action)
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def testAgentAddInternalNetwork(self):
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self._test_internal_network_action('add')
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def testAgentRemoveInternalNetwork(self):
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self._test_internal_network_action('remove')
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def _test_external_gateway_action(self, action):
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router_id = _uuid()
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces, None)
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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internal_cidrs = ['100.0.1.0/24', '200.74.0.0/16']
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ex_gw_port = {'fixed_ips': [{'ip_address': '20.0.0.30',
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'subnet_id': _uuid()}],
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'subnet': {'gateway_ip': '20.0.0.1'},
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'id': _uuid(),
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'network_id': _uuid(),
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'mac_address': 'ca:fe:de:ad:be:ef',
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'ip_cidr': '20.0.0.30/24'}
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interface_name = agent.get_external_device_name(ex_gw_port['id'])
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if action == 'add':
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self.device_exists.return_value = False
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agent.external_gateway_added(ri, ex_gw_port, internal_cidrs)
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self.assertEqual(self.mock_driver.plug.call_count, 1)
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self.assertEqual(self.mock_driver.init_l3.call_count, 1)
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arping_cmd = ['arping', '-A', '-U',
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'-I', interface_name,
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'-c', self.conf.send_arp_for_ha,
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'20.0.0.30']
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if self.conf.use_namespaces:
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self.mock_ip.netns.execute.assert_any_call(
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arping_cmd, check_exit_code=True)
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else:
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self.utils_exec.assert_any_call(
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check_exit_code=True, root_helper=self.conf.root_helper)
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elif action == 'remove':
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self.device_exists.return_value = True
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agent.external_gateway_removed(ri, ex_gw_port, internal_cidrs)
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self.assertEqual(self.mock_driver.unplug.call_count, 1)
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else:
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raise Exception("Invalid action %s" % action)
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def testAgentAddExternalGateway(self):
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self._test_external_gateway_action('add')
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def testAgentRemoveExternalGateway(self):
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self._test_external_gateway_action('remove')
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def _test_floating_ip_action(self, action):
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router_id = _uuid()
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces, None)
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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floating_ip = '20.0.0.100'
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fixed_ip = '10.0.0.23'
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ex_gw_port = {'fixed_ips': [{'ip_address': '20.0.0.30',
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'subnet_id': _uuid()}],
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'subnet': {'gateway_ip': '20.0.0.1'},
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'id': _uuid(),
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'mac_address': 'ca:fe:de:ad:be:ef',
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'ip_cidr': '20.0.0.30/24'}
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interface_name = agent.get_external_device_name(ex_gw_port['id'])
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if action == 'add':
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self.device_exists.return_value = False
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agent.floating_ip_added(ri, ex_gw_port, floating_ip, fixed_ip)
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arping_cmd = ['arping', '-A', '-U',
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'-I', interface_name,
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'-c', self.conf.send_arp_for_ha,
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floating_ip]
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if self.conf.use_namespaces:
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self.mock_ip.netns.execute.assert_any_call(
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arping_cmd, check_exit_code=True)
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else:
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self.utils_exec.assert_any_call(
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check_exit_code=True, root_helper=self.conf.root_helper)
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elif action == 'remove':
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self.device_exists.return_value = True
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agent.floating_ip_removed(ri, ex_gw_port, floating_ip, fixed_ip)
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else:
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raise Exception("Invalid action %s" % action)
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def testAgentAddFloatingIP(self):
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self._test_floating_ip_action('add')
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def testAgentRemoveFloatingIP(self):
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self._test_floating_ip_action('remove')
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def _check_agent_method_called(self, agent, calls, namespace):
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if namespace:
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self.mock_ip.netns.execute.assert_has_calls(
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[mock.call(call, check_exit_code=False) for call in calls],
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any_order=True)
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else:
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self.utils_exec.assert_has_calls([
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mock.call(call, root_helper='sudo',
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check_exit_code=False) for call in calls],
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any_order=True)
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def _test_routing_table_update(self, namespace):
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if not namespace:
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self.conf.set_override('use_namespaces', False)
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router_id = _uuid()
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces,
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None)
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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fake_route1 = {'destination': '135.207.0.0/16',
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'nexthop': '1.2.3.4'}
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fake_route2 = {'destination': '135.207.111.111/32',
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'nexthop': '1.2.3.4'}
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agent._update_routing_table(ri, 'replace', fake_route1)
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expected = [['ip', 'route', 'replace', 'to', '135.207.0.0/16',
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'via', '1.2.3.4']]
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self._check_agent_method_called(agent, expected, namespace)
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agent._update_routing_table(ri, 'delete', fake_route1)
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expected = [['ip', 'route', 'delete', 'to', '135.207.0.0/16',
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'via', '1.2.3.4']]
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self._check_agent_method_called(agent, expected, namespace)
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agent._update_routing_table(ri, 'replace', fake_route2)
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expected = [['ip', 'route', 'replace', 'to', '135.207.111.111/32',
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'via', '1.2.3.4']]
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self._check_agent_method_called(agent, expected, namespace)
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agent._update_routing_table(ri, 'delete', fake_route2)
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expected = [['ip', 'route', 'delete', 'to', '135.207.111.111/32',
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'via', '1.2.3.4']]
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self._check_agent_method_called(agent, expected, namespace)
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def testAgentRoutingTableUpdated(self):
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self._test_routing_table_update(namespace=True)
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def testAgentRoutingTableUpdatedNoNameSpace(self):
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self._test_routing_table_update(namespace=False)
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def testRoutesUpdated(self):
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self._test_routes_updated(namespace=True)
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def testRoutesUpdatedNoNamespace(self):
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self._test_routes_updated(namespace=False)
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def _test_routes_updated(self, namespace=True):
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if not namespace:
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self.conf.set_override('use_namespaces', False)
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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router_id = _uuid()
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces,
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None)
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ri.router = {}
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fake_old_routes = []
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fake_new_routes = [{'destination': "110.100.31.0/24",
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'nexthop': "10.100.10.30"},
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{'destination': "110.100.30.0/24",
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'nexthop': "10.100.10.30"}]
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ri.routes = fake_old_routes
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ri.router['routes'] = fake_new_routes
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agent.routes_updated(ri)
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expected = [['ip', 'route', 'replace', 'to', '110.100.30.0/24',
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'via', '10.100.10.30'],
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['ip', 'route', 'replace', 'to', '110.100.31.0/24',
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'via', '10.100.10.30']]
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self._check_agent_method_called(agent, expected, namespace)
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fake_new_routes = [{'destination': "110.100.30.0/24",
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'nexthop': "10.100.10.30"}]
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ri.router['routes'] = fake_new_routes
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agent.routes_updated(ri)
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expected = [['ip', 'route', 'delete', 'to', '110.100.31.0/24',
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'via', '10.100.10.30']]
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self._check_agent_method_called(agent, expected, namespace)
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fake_new_routes = []
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ri.router['routes'] = fake_new_routes
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agent.routes_updated(ri)
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expected = [['ip', 'route', 'delete', 'to', '110.100.30.0/24',
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'via', '10.100.10.30']]
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self._check_agent_method_called(agent, expected, namespace)
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def testProcessRouter(self):
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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router_id = _uuid()
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ex_gw_port = {'id': _uuid(),
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'network_id': _uuid(),
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'fixed_ips': [{'ip_address': '19.4.4.4',
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'subnet_id': _uuid()}],
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'subnet': {'cidr': '19.4.4.0/24',
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'gateway_ip': '19.4.4.1'}}
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internal_port = {'id': _uuid(),
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'network_id': _uuid(),
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'admin_state_up': True,
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'fixed_ips': [{'ip_address': '35.4.4.4',
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'subnet_id': _uuid()}],
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'mac_address': 'ca:fe:de:ad:be:ef',
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'subnet': {'cidr': '35.4.4.0/24',
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'gateway_ip': '35.4.4.1'}}
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fake_floatingips1 = {'floatingips': [
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{'id': _uuid(),
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'floating_ip_address': '8.8.8.8',
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'fixed_ip_address': '7.7.7.7',
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'port_id': _uuid()}]}
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router = {
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'id': router_id,
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l3_constants.FLOATINGIP_KEY: fake_floatingips1['floatingips'],
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l3_constants.INTERFACE_KEY: [internal_port],
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'routes': [],
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'gw_port': ex_gw_port}
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ri = l3_agent.RouterInfo(router_id, self.conf.root_helper,
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self.conf.use_namespaces, router=router)
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agent.process_router(ri)
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# remap floating IP to a new fixed ip
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fake_floatingips2 = copy.deepcopy(fake_floatingips1)
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fake_floatingips2['floatingips'][0]['fixed_ip_address'] = '7.7.7.8'
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router[l3_constants.FLOATINGIP_KEY] = fake_floatingips2['floatingips']
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agent.process_router(ri)
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# remove just the floating ips
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del router[l3_constants.FLOATINGIP_KEY]
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agent.process_router(ri)
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# now no ports so state is torn down
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del router[l3_constants.INTERFACE_KEY]
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del router['gw_port']
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agent.process_router(ri)
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def testRoutersWithAdminStateDown(self):
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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self.plugin_api.get_external_network_id.return_value = None
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routers = [
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{'id': _uuid(),
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'admin_state_up': False,
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'external_gateway_info': {}}]
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agent._process_routers(routers)
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self.assertNotIn(routers[0]['id'], agent.router_info)
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def testSingleLoopRouterRemoval(self):
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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self.plugin_api.get_external_network_id.return_value = None
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routers = [
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{'id': _uuid(),
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'admin_state_up': True,
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'routes': [],
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'external_gateway_info': {}}]
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agent._process_routers(routers)
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agent.router_deleted(None, routers[0]['id'])
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# verify that remove is called
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self.assertEqual(self.mock_ip.get_devices.call_count, 1)
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self.device_exists.assert_has_calls(
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[mock.call(self.conf.external_network_bridge)])
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def testDestroyNamespace(self):
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class FakeDev(object):
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def __init__(self, name):
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self.name = name
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self.mock_ip.get_namespaces.return_value = ['qrouter-foo',
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'qrouter-bar']
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self.mock_ip.get_devices.return_value = [FakeDev('qr-aaaa'),
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FakeDev('qgw-aaaa')]
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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agent._destroy_router_namespace = mock.MagicMock()
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agent._destroy_router_namespaces()
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self.assertEqual(agent._destroy_router_namespace.call_count, 2)
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def testDestroyNamespaceWithRouterId(self):
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class FakeDev(object):
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def __init__(self, name):
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self.name = name
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self.conf.router_id = _uuid()
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namespaces = ['qrouter-foo', 'qrouter-' + self.conf.router_id]
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self.mock_ip.get_namespaces.return_value = namespaces
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self.mock_ip.get_devices.return_value = [FakeDev('qr-aaaa'),
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FakeDev('qgw-aaaa')]
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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agent._destroy_router_namespace = mock.MagicMock()
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agent._destroy_router_namespaces(self.conf.router_id)
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self.assertEqual(agent._destroy_router_namespace.call_count, 1)
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