# Copyright 2018 Red Hat, Inc. # 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. from unittest import mock import fixtures from neutron_lib.api.definitions import extra_dhcp_opt as edo_ext from neutron.common.ovn import constants from neutron.common.ovn import utils from neutron.tests import base from neutron.tests.unit import fake_resources as fakes RESOLV_CONF_TEMPLATE = """# TEST TEST TEST # Geneated by OVN test nameserver 10.0.0.1 #nameserver 10.0.0.2 nameserver 10.0.0.3 nameserver foo 10.0.0.4 nameserver aef0::4 foo 10.0.0.5 """ class TestUtils(base.BaseTestCase): def test_get_system_dns_resolvers(self): tempdir = self.useFixture(fixtures.TempDir()).path resolver_file_name = tempdir + '/resolv.conf' tmp_resolv_file = open(resolver_file_name, 'w') tmp_resolv_file.writelines(RESOLV_CONF_TEMPLATE) tmp_resolv_file.close() expected_dns_resolvers = ['10.0.0.1', '10.0.0.3'] observed_dns_resolvers = utils.get_system_dns_resolvers( resolver_file=resolver_file_name) self.assertEqual(expected_dns_resolvers, observed_dns_resolvers) def test_is_gateway_chassis(self): chassis = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={ 'external_ids': {'ovn-cms-options': 'enable-chassis-as-gw'}}) non_gw_chassis_0 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={ 'external_ids': {'ovn-cms-options': ''}}) non_gw_chassis_1 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={}) non_gw_chassis_2 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={ 'external_ids': {}}) self.assertTrue(utils.is_gateway_chassis(chassis)) self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_0)) self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_1)) self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_2)) class TestGateWayChassisValidity(base.BaseTestCase): def setUp(self): super(TestGateWayChassisValidity, self).setUp() self.gw_chassis = ['host1', 'host2'] self.chassis_name = self.gw_chassis[0] self.physnet = 'physical-nw-1' self.chassis_physnets = {self.chassis_name: [self.physnet]} def test_gateway_chassis_valid(self): # Return False, since everything is valid self.assertFalse(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_due_to_invalid_chassis_name(self): # Return True since chassis is invalid self.chassis_name = constants.OVN_GATEWAY_INVALID_CHASSIS self.assertTrue(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_for_chassis_not_in_chassis_physnets(self): # Return True since chassis is not in chassis_physnets self.chassis_name = 'host-2' self.assertTrue(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_for_undefined_physnet(self): # Return True since physnet is not defined self.chassis_name = 'host-1' self.physnet = None self.assertTrue(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_for_physnet_not_in_chassis_physnets(self): # Return True since physnet is not in chassis_physnets self.physnet = 'physical-nw-2' self.assertTrue(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_for_gw_chassis_empty(self): # Return False if gw_chassis is [] # This condition states that the chassis is valid, has valid # physnets and there are no gw_chassis present in the system. self.gw_chassis = [] self.assertFalse(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) def test_gateway_chassis_for_chassis_not_in_gw_chassis_list(self): # Return True since chassis_name not in gw_chassis self.gw_chassis = ['host-2'] self.assertTrue(utils.is_gateway_chassis_invalid( self.chassis_name, self.gw_chassis, self.physnet, self.chassis_physnets)) class TestDHCPUtils(base.BaseTestCase): def test_validate_port_extra_dhcp_opts_empty(self): port = {edo_ext.EXTRADHCPOPTS: []} result = utils.validate_port_extra_dhcp_opts(port) self.assertFalse(result.failed) self.assertEqual([], result.invalid_ipv4) self.assertEqual([], result.invalid_ipv6) def test_validate_port_extra_dhcp_opts_dhcp_disabled(self): opt0 = {'opt_name': 'not-valid-ipv4', 'opt_value': 'joe rogan', 'ip_version': 4} opt1 = {'opt_name': 'dhcp_disabled', 'opt_value': 'True', 'ip_version': 4} port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]} # Validation always succeeds if the "dhcp_disabled" option is enabled result = utils.validate_port_extra_dhcp_opts(port) self.assertFalse(result.failed) self.assertEqual([], result.invalid_ipv4) self.assertEqual([], result.invalid_ipv6) def test_validate_port_extra_dhcp_opts(self): opt0 = {'opt_name': 'bootfile-name', 'opt_value': 'homer_simpson.bin', 'ip_version': 4} opt1 = {'opt_name': 'dns-server', 'opt_value': '2001:4860:4860::8888', 'ip_version': 6} port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]} result = utils.validate_port_extra_dhcp_opts(port) self.assertFalse(result.failed) self.assertEqual([], result.invalid_ipv4) self.assertEqual([], result.invalid_ipv6) def test_validate_port_extra_dhcp_opts_invalid(self): # Two value options and two invalid, assert the validation # will fail and only the invalid options will be returned as # not supported opt0 = {'opt_name': 'bootfile-name', 'opt_value': 'homer_simpson.bin', 'ip_version': 4} opt1 = {'opt_name': 'dns-server', 'opt_value': '2001:4860:4860::8888', 'ip_version': 6} opt2 = {'opt_name': 'not-valid-ipv4', 'opt_value': 'joe rogan', 'ip_version': 4} opt3 = {'opt_name': 'not-valid-ipv6', 'opt_value': 'young jamie', 'ip_version': 6} port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1, opt2, opt3]} result = utils.validate_port_extra_dhcp_opts(port) self.assertTrue(result.failed) self.assertEqual(['not-valid-ipv4'], result.invalid_ipv4) self.assertEqual(['not-valid-ipv6'], result.invalid_ipv6) def test_get_lsp_dhcp_opts_empty(self): port = {edo_ext.EXTRADHCPOPTS: []} dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4) self.assertFalse(dhcp_disabled) self.assertEqual({}, options) def test_get_lsp_dhcp_opts_empty_dhcp_disabled(self): opt0 = {'opt_name': 'bootfile-name', 'opt_value': 'homer_simpson.bin', 'ip_version': 4} opt1 = {'opt_name': 'dhcp_disabled', 'opt_value': 'True', 'ip_version': 4} port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1]} # Validation always succeeds if the "dhcp_disabled" option is enabled dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4) self.assertTrue(dhcp_disabled) self.assertEqual({}, options) @mock.patch.object(utils, 'is_network_device_port') def test_get_lsp_dhcp_opts_is_network_device_port(self, mock_device_port): mock_device_port.return_value = True port = {} dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4) # Assert OVN DHCP is disabled self.assertTrue(dhcp_disabled) self.assertEqual({}, options) def test_get_lsp_dhcp_opts(self): opt0 = {'opt_name': 'bootfile-name', 'opt_value': 'homer_simpson.bin', 'ip_version': 4} opt1 = {'opt_name': 'server-ip-address', 'opt_value': '10.0.0.1', 'ip_version': 4} opt2 = {'opt_name': '42', 'opt_value': '10.0.2.1', 'ip_version': 4} port = {edo_ext.EXTRADHCPOPTS: [opt0, opt1, opt2]} dhcp_disabled, options = utils.get_lsp_dhcp_opts(port, 4) self.assertFalse(dhcp_disabled) # Assert the names got translated to their OVN names expected_options = {'tftp_server_address': '10.0.0.1', 'ntp_server': '10.0.2.1', 'bootfile_name': 'homer_simpson.bin'} self.assertEqual(expected_options, options)