493 lines
20 KiB
Python
493 lines
20 KiB
Python
# Copyright 2015 Red Hat, Inc.
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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 neutron_lib import constants
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import testtools
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from neutron.agent.common import ovs_lib
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from neutron.agent import firewall
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from neutron.agent.linux.openvswitch_firewall import constants as ovsfw_consts
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from neutron.agent.linux.openvswitch_firewall import exceptions
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from neutron.agent.linux.openvswitch_firewall import firewall as ovsfw
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from neutron.common import constants as n_const
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from neutron.plugins.ml2.drivers.openvswitch.agent.common import constants \
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as ovs_consts
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from neutron.tests import base
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TESTING_VLAN_TAG = 1
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def create_ofport(port_dict):
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ovs_port = mock.Mock(vif_mac='00:00:00:00:00:00', ofport=1,
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port_name="port-name")
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return ovsfw.OFPort(port_dict, ovs_port, vlan_tag=TESTING_VLAN_TAG)
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class TestCreateRegNumbers(base.BaseTestCase):
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def test_no_registers_defined(self):
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flow = {'foo': 'bar'}
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ovsfw.create_reg_numbers(flow)
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self.assertEqual({'foo': 'bar'}, flow)
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def test_both_registers_defined(self):
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flow = {'foo': 'bar', 'reg_port': 1, 'reg_net': 2}
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expected_flow = {'foo': 'bar',
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'reg{:d}'.format(ovsfw_consts.REG_PORT): 1,
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'reg{:d}'.format(ovsfw_consts.REG_NET): 2}
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ovsfw.create_reg_numbers(flow)
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self.assertEqual(expected_flow, flow)
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class TestSecurityGroup(base.BaseTestCase):
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def setUp(self):
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super(TestSecurityGroup, self).setUp()
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self.sg = ovsfw.SecurityGroup('123')
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self.sg.members = {'type': [1, 2, 3, 4]}
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def test_update_rules(self):
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rules = [
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{'foo': 'bar', 'rule': 'all'}, {'bar': 'foo'},
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{'remote_group_id': '123456', 'foo': 'bar'}]
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expected_raw_rules = [{'foo': 'bar', 'rule': 'all'}, {'bar': 'foo'}]
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expected_remote_rules = [{'remote_group_id': '123456', 'foo': 'bar'}]
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self.sg.update_rules(rules)
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self.assertEqual(expected_raw_rules, self.sg.raw_rules)
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self.assertEqual(expected_remote_rules, self.sg.remote_rules)
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def get_ethertype_filtered_addresses(self):
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addresses = self.sg.get_ethertype_filtered_addresses('type')
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expected_addresses = [1, 2, 3, 4]
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self.assertEqual(expected_addresses, addresses)
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def get_ethertype_filtered_addresses_with_excluded_addresses(self):
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addresses = self.sg.get_ethertype_filtered_addresses('type', [2, 3])
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expected_addresses = [1, 4]
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self.assertEqual(expected_addresses, addresses)
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class TestOFPort(base.BaseTestCase):
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def setUp(self):
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super(TestOFPort, self).setUp()
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self.ipv4_addresses = ['10.0.0.1', '192.168.0.1']
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self.ipv6_addresses = ['fe80::f816:3eff:fe2e:1']
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port_dict = {'device': 1,
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'fixed_ips': self.ipv4_addresses + self.ipv6_addresses}
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self.port = create_ofport(port_dict)
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def test_ipv4_address(self):
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ipv4_addresses = self.port.ipv4_addresses
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self.assertEqual(self.ipv4_addresses, ipv4_addresses)
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def test_ipv6_address(self):
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ipv6_addresses = self.port.ipv6_addresses
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self.assertEqual(self.ipv6_addresses, ipv6_addresses)
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def test__get_allowed_pairs(self):
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port = {
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'allowed_address_pairs': [
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{'mac_address': 'foo', 'ip_address': '10.0.0.1'},
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{'mac_address': 'bar', 'ip_address': '192.168.0.1'},
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{'mac_address': 'baz', 'ip_address': '2003::f'},
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]}
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allowed_pairs_v4 = ovsfw.OFPort._get_allowed_pairs(port, version=4)
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allowed_pairs_v6 = ovsfw.OFPort._get_allowed_pairs(port, version=6)
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expected_aap_v4 = {('foo', '10.0.0.1'), ('bar', '192.168.0.1')}
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expected_aap_v6 = {('baz', '2003::f')}
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self.assertEqual(expected_aap_v4, allowed_pairs_v4)
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self.assertEqual(expected_aap_v6, allowed_pairs_v6)
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def test__get_allowed_pairs_empty(self):
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port = {}
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allowed_pairs = ovsfw.OFPort._get_allowed_pairs(port, version=4)
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self.assertFalse(allowed_pairs)
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def test_update(self):
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old_port_dict = self.port.neutron_port_dict
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new_port_dict = old_port_dict.copy()
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added_ips = [1, 2, 3]
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new_port_dict.update({
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'fixed_ips': added_ips,
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'allowed_address_pairs': [
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{'mac_address': '00:00:00:00:00:01',
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'ip_address': '192.168.0.1'},
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{'mac_address': '00:00:00:00:00:01',
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'ip_address': '2003::f'}],
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})
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self.port.update(new_port_dict)
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self.assertEqual(new_port_dict, self.port.neutron_port_dict)
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self.assertIsNot(new_port_dict, self.port.neutron_port_dict)
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self.assertEqual(added_ips, self.port.fixed_ips)
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self.assertEqual({('00:00:00:00:00:01', '192.168.0.1')},
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self.port.allowed_pairs_v4)
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self.assertIn(('00:00:00:00:00:01', '2003::f'),
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self.port.allowed_pairs_v6)
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class TestSGPortMap(base.BaseTestCase):
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def setUp(self):
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super(TestSGPortMap, self).setUp()
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self.map = ovsfw.SGPortMap()
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def test_get_or_create_sg_existing_sg(self):
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self.map.sec_groups['id'] = mock.sentinel
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sg = self.map.get_or_create_sg('id')
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self.assertIs(mock.sentinel, sg)
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def test_get_or_create_sg_nonexisting_sg(self):
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with mock.patch.object(ovsfw, 'SecurityGroup') as sg_mock:
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sg = self.map.get_or_create_sg('id')
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self.assertEqual(sg_mock.return_value, sg)
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def _check_port(self, port_id, expected_sg_ids):
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port = self.map.ports[port_id]
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expected_sgs = [self.map.sec_groups[sg_id]
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for sg_id in expected_sg_ids]
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self.assertEqual(port.sec_groups, expected_sgs)
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def _check_sg(self, sg_id, expected_port_ids):
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sg = self.map.sec_groups[sg_id]
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expected_ports = {self.map.ports[port_id]
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for port_id in expected_port_ids}
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self.assertEqual(sg.ports, expected_ports)
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def _create_ports_and_sgroups(self):
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sg_1 = ovsfw.SecurityGroup(1)
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sg_2 = ovsfw.SecurityGroup(2)
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sg_3 = ovsfw.SecurityGroup(3)
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port_a = create_ofport({'device': 'a'})
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port_b = create_ofport({'device': 'b'})
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self.map.ports = {'a': port_a, 'b': port_b}
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self.map.sec_groups = {1: sg_1, 2: sg_2, 3: sg_3}
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port_a.sec_groups = [sg_1, sg_2]
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port_b.sec_groups = [sg_2, sg_3]
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sg_1.ports = {port_a}
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sg_2.ports = {port_a, port_b}
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sg_3.ports = {port_b}
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def test_create_port(self):
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port = create_ofport({'device': 'a'})
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sec_groups = ['1', '2']
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port_dict = {'security_groups': sec_groups}
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self.map.create_port(port, port_dict)
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self._check_port('a', sec_groups)
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self._check_sg('1', ['a'])
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self._check_sg('2', ['a'])
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def test_update_port_sg_added(self):
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self._create_ports_and_sgroups()
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port_dict = {'security_groups': [1, 2, 3]}
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self.map.update_port(self.map.ports['b'], port_dict)
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self._check_port('a', [1, 2])
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self._check_port('b', [1, 2, 3])
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self._check_sg(1, ['a', 'b'])
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self._check_sg(2, ['a', 'b'])
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self._check_sg(3, ['b'])
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def test_update_port_sg_removed(self):
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self._create_ports_and_sgroups()
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port_dict = {'security_groups': [1]}
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self.map.update_port(self.map.ports['b'], port_dict)
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self._check_port('a', [1, 2])
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self._check_port('b', [1])
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self._check_sg(1, ['a', 'b'])
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self._check_sg(2, ['a'])
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self._check_sg(3, [])
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def test_remove_port(self):
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self._create_ports_and_sgroups()
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self.map.remove_port(self.map.ports['a'])
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self._check_port('b', [2, 3])
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self._check_sg(1, [])
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self._check_sg(2, ['b'])
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self._check_sg(3, ['b'])
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self.assertNotIn('a', self.map.ports)
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def test_update_rules(self):
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"""Just make sure it doesn't crash"""
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self.map.update_rules(1, [])
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def test_update_members(self):
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"""Just make sure we doesn't crash"""
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self.map.update_members(1, [])
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class FakeOVSPort(object):
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def __init__(self, name, port, mac):
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self.port_name = name
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self.ofport = port
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self.vif_mac = mac
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class TestOVSFirewallDriver(base.BaseTestCase):
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def setUp(self):
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super(TestOVSFirewallDriver, self).setUp()
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mock_bridge = mock.patch.object(
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ovs_lib, 'OVSBridge', autospec=True).start()
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self.firewall = ovsfw.OVSFirewallDriver(mock_bridge)
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self.mock_bridge = self.firewall.int_br
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self.mock_bridge.reset_mock()
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self.fake_ovs_port = FakeOVSPort('port', 1, '00:00:00:00:00:00')
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self.mock_bridge.br.get_vif_port_by_id.return_value = \
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self.fake_ovs_port
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def _prepare_security_group(self):
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security_group_rules = [
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{'ethertype': constants.IPv4,
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'protocol': constants.PROTO_NAME_TCP,
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'direction': firewall.INGRESS_DIRECTION,
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'port_range_min': 123,
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'port_range_max': 123}]
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self.firewall.update_security_group_rules(1, security_group_rules)
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security_group_rules = [
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{'ethertype': constants.IPv4,
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'protocol': constants.PROTO_NAME_UDP,
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'direction': firewall.EGRESS_DIRECTION}]
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self.firewall.update_security_group_rules(2, security_group_rules)
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@property
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def port_ofport(self):
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return self.mock_bridge.br.get_vif_port_by_id.return_value.ofport
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@property
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def port_mac(self):
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return self.mock_bridge.br.get_vif_port_by_id.return_value.vif_mac
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def test_initialize_bridge(self):
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br = self.firewall.initialize_bridge(self.mock_bridge)
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self.assertEqual(br, self.mock_bridge.deferred.return_value)
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def test__add_flow_dl_type_formatted_to_string(self):
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dl_type = 0x0800
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self.firewall._add_flow(dl_type=dl_type)
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def test__add_flow_registers_are_replaced(self):
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self.firewall._add_flow(in_port=1, reg_port=1, reg_net=2)
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expected_calls = {'in_port': 1,
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'reg{:d}'.format(ovsfw_consts.REG_PORT): 1,
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'reg{:d}'.format(ovsfw_consts.REG_NET): 2}
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self.mock_bridge.br.add_flow.assert_called_once_with(
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**expected_calls)
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def test__drop_all_unmatched_flows(self):
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self.firewall._drop_all_unmatched_flows()
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expected_calls = [
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mock.call(actions='drop', priority=0,
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table=ovs_consts.BASE_EGRESS_TABLE),
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mock.call(actions='drop', priority=0,
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table=ovs_consts.RULES_EGRESS_TABLE),
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mock.call(actions='drop', priority=0,
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table=ovs_consts.ACCEPT_OR_INGRESS_TABLE),
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mock.call(actions='drop', priority=0,
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table=ovs_consts.BASE_INGRESS_TABLE),
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mock.call(actions='drop', priority=0,
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table=ovs_consts.RULES_INGRESS_TABLE)]
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actual_calls = self.firewall.int_br.br.add_flow.call_args_list
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self.assertEqual(expected_calls, actual_calls)
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def test_get_or_create_ofport_non_existing(self):
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port_dict = {
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'device': 'port-id',
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'security_groups': [123, 456]}
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port = self.firewall.get_or_create_ofport(port_dict)
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sg1, sg2 = sorted(
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self.firewall.sg_port_map.sec_groups.values(),
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key=lambda x: x.id)
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self.assertIn(port, self.firewall.sg_port_map.ports.values())
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self.assertEqual(
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sorted(port.sec_groups, key=lambda x: x.id), [sg1, sg2])
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self.assertIn(port, sg1.ports)
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self.assertIn(port, sg2.ports)
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def test_get_or_create_ofport_existing(self):
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port_dict = {
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'device': 'port-id',
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'security_groups': [123, 456]}
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of_port = create_ofport(port_dict)
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self.firewall.sg_port_map.ports[of_port.id] = of_port
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port = self.firewall.get_or_create_ofport(port_dict)
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sg1, sg2 = sorted(
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self.firewall.sg_port_map.sec_groups.values(),
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key=lambda x: x.id)
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self.assertIs(of_port, port)
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self.assertIn(port, self.firewall.sg_port_map.ports.values())
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self.assertEqual(
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sorted(port.sec_groups, key=lambda x: x.id), [sg1, sg2])
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self.assertIn(port, sg1.ports)
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self.assertIn(port, sg2.ports)
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def test_get_or_create_ofport_changed(self):
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port_dict = {
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'device': 'port-id',
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'security_groups': [123, 456]}
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of_port = create_ofport(port_dict)
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self.firewall.sg_port_map.ports[of_port.id] = of_port
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fake_ovs_port = FakeOVSPort('port', 2, '00:00:00:00:00:00')
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self.mock_bridge.br.get_vif_port_by_id.return_value = \
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fake_ovs_port
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port = self.firewall.get_or_create_ofport(port_dict)
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self.assertEqual(port.ofport, 2)
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def test_get_or_create_ofport_missing(self):
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port_dict = {
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'device': 'port-id',
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'security_groups': [123, 456]}
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self.mock_bridge.br.get_vif_port_by_id.return_value = None
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with testtools.ExpectedException(exceptions.OVSFWPortNotFound):
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self.firewall.get_or_create_ofport(port_dict)
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def test_get_or_create_ofport_missing_nocreate(self):
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port_dict = {
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'device': 'port-id',
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'security_groups': [123, 456]}
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self.mock_bridge.br.get_vif_port_by_id.return_value = None
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self.assertIsNone(self.firewall.get_ofport(port_dict))
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self.assertFalse(self.mock_bridge.br.get_vif_port_by_id.called)
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def test_is_port_managed_managed_port(self):
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port_dict = {'device': 'port-id'}
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self.firewall.sg_port_map.ports[port_dict['device']] = object()
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is_managed = self.firewall.is_port_managed(port_dict)
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self.assertTrue(is_managed)
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def test_is_port_managed_not_managed_port(self):
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port_dict = {'device': 'port-id'}
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is_managed = self.firewall.is_port_managed(port_dict)
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self.assertFalse(is_managed)
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def test_prepare_port_filter(self):
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port_dict = {'device': 'port-id',
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'security_groups': [1]}
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self._prepare_security_group()
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self.firewall.prepare_port_filter(port_dict)
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exp_egress_classifier = mock.call(
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actions='set_field:{:d}->reg5,set_field:{:d}->reg6,'
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'resubmit(,{:d})'.format(
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self.port_ofport, TESTING_VLAN_TAG,
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ovs_consts.BASE_EGRESS_TABLE),
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in_port=self.port_ofport,
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priority=100,
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table=ovs_consts.LOCAL_SWITCHING)
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exp_ingress_classifier = mock.call(
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actions='set_field:{:d}->reg5,set_field:{:d}->reg6,'
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'resubmit(,{:d})'.format(
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self.port_ofport, TESTING_VLAN_TAG,
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ovs_consts.BASE_INGRESS_TABLE),
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dl_dst=self.port_mac,
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priority=90,
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table=ovs_consts.LOCAL_SWITCHING)
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filter_rule = mock.call(
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actions='ct(commit,zone=NXM_NX_REG6[0..15]),'
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'strip_vlan,output:{:d}'.format(self.port_ofport),
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dl_dst=self.port_mac,
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dl_type="0x{:04x}".format(n_const.ETHERTYPE_IP),
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nw_proto=constants.PROTO_NUM_TCP,
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priority=70,
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reg5=self.port_ofport,
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ct_state=ovsfw_consts.OF_STATE_NEW_NOT_ESTABLISHED,
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table=ovs_consts.RULES_INGRESS_TABLE,
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tcp_dst='0x007b')
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calls = self.mock_bridge.br.add_flow.call_args_list
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for call in exp_ingress_classifier, exp_egress_classifier, filter_rule:
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self.assertIn(call, calls)
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def test_prepare_port_filter_port_security_disabled(self):
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port_dict = {'device': 'port-id',
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'security_groups': [1],
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'port_security_enabled': False}
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self._prepare_security_group()
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self.firewall.prepare_port_filter(port_dict)
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self.assertFalse(self.mock_bridge.br.add_flow.called)
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|
|
|
def test_prepare_port_filter_initialized_port(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self._prepare_security_group()
|
|
self.firewall.prepare_port_filter(port_dict)
|
|
self.assertFalse(self.mock_bridge.br.delete_flows.called)
|
|
self.firewall.prepare_port_filter(port_dict)
|
|
self.assertTrue(self.mock_bridge.br.delete_flows.called)
|
|
|
|
def test_update_port_filter(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self._prepare_security_group()
|
|
self.firewall.prepare_port_filter(port_dict)
|
|
port_dict['security_groups'] = [2]
|
|
self.mock_bridge.reset_mock()
|
|
|
|
self.firewall.update_port_filter(port_dict)
|
|
self.assertTrue(self.mock_bridge.br.delete_flows.called)
|
|
add_calls = self.mock_bridge.br.add_flow.call_args_list
|
|
filter_rule = mock.call(
|
|
actions='resubmit(,{:d})'.format(
|
|
ovs_consts.ACCEPT_OR_INGRESS_TABLE),
|
|
dl_src=self.port_mac,
|
|
dl_type="0x{:04x}".format(n_const.ETHERTYPE_IP),
|
|
nw_proto=constants.PROTO_NUM_UDP,
|
|
priority=70,
|
|
ct_state=ovsfw_consts.OF_STATE_NEW_NOT_ESTABLISHED,
|
|
reg5=self.port_ofport,
|
|
table=ovs_consts.RULES_EGRESS_TABLE)
|
|
self.assertIn(filter_rule, add_calls)
|
|
|
|
def test_update_port_filter_create_new_port_if_not_present(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self._prepare_security_group()
|
|
with mock.patch.object(
|
|
self.firewall, 'prepare_port_filter') as prepare_mock:
|
|
self.firewall.update_port_filter(port_dict)
|
|
self.assertTrue(prepare_mock.called)
|
|
|
|
def test_update_port_filter_port_security_disabled(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self._prepare_security_group()
|
|
self.firewall.prepare_port_filter(port_dict)
|
|
port_dict['port_security_enabled'] = False
|
|
self.firewall.update_port_filter(port_dict)
|
|
self.assertTrue(self.mock_bridge.br.delete_flows.called)
|
|
|
|
def test_remove_port_filter(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self._prepare_security_group()
|
|
self.firewall.prepare_port_filter(port_dict)
|
|
self.firewall.remove_port_filter(port_dict)
|
|
self.assertTrue(self.mock_bridge.br.delete_flows.called)
|
|
|
|
def test_remove_port_filter_port_security_disabled(self):
|
|
port_dict = {'device': 'port-id',
|
|
'security_groups': [1]}
|
|
self.firewall.remove_port_filter(port_dict)
|
|
self.assertFalse(self.mock_bridge.br.delete_flows.called)
|
|
|
|
def test_update_security_group_rules(self):
|
|
"""Just make sure it doesn't crash"""
|
|
new_rules = [
|
|
{'ethertype': constants.IPv4,
|
|
'direction': firewall.INGRESS_DIRECTION,
|
|
'protocol': constants.PROTO_NAME_ICMP},
|
|
{'ethertype': constants.IPv4,
|
|
'direction': firewall.EGRESS_DIRECTION,
|
|
'remote_group_id': 2}]
|
|
self.firewall.update_security_group_rules(1, new_rules)
|
|
|
|
def test_update_security_group_members(self):
|
|
"""Just make sure it doesn't crash"""
|
|
new_members = {constants.IPv4: [1, 2, 3, 4]}
|
|
self.firewall.update_security_group_members(2, new_members)
|