# Copyright (c) 2020 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 oslo_log import log as logging from tempest.lib.common.utils import data_utils from tempest.lib import decorators from neutron_tempest_plugin.common import ip from neutron_tempest_plugin.common import ssh from neutron_tempest_plugin import config from neutron_tempest_plugin.scenario import base LOG = logging.getLogger(__name__) CONF = config.CONF MIN_VLAN_ID = 1 MAX_VLAN_ID = 4094 class VlanTransparencyTest(base.BaseTempestTestCase): credentials = ['primary', 'admin'] force_tenant_isolation = False required_extensions = ['vlan-transparent', 'allowed-address-pairs'] @classmethod def resource_setup(cls): super(VlanTransparencyTest, cls).resource_setup() # setup basic topology for servers we can log into cls.rand_name = data_utils.rand_name( cls.__name__.rsplit('.', 1)[-1]) cls.network = cls.create_network(name=cls.rand_name, vlan_transparent=True) cls.subnet = cls.create_subnet(network=cls.network, name=cls.rand_name) cls.router = cls.create_router_by_client() cls.create_router_interface(cls.router['id'], cls.subnet['id']) cls.keypair = cls.create_keypair(name=cls.rand_name) cls.vm_ports = [] cls.security_group = cls.create_security_group(name=cls.rand_name) cls.create_loginable_secgroup_rule(cls.security_group['id']) if CONF.neutron_plugin_options.default_image_is_advanced: cls.flavor_ref = CONF.compute.flavor_ref cls.image_ref = CONF.compute.image_ref else: cls.flavor_ref = \ CONF.neutron_plugin_options.advanced_image_flavor_ref cls.image_ref = CONF.neutron_plugin_options.advanced_image_ref @classmethod def skip_checks(cls): super(VlanTransparencyTest, cls).skip_checks() if not (CONF.neutron_plugin_options.advanced_image_ref or CONF.neutron_plugin_options.default_image_is_advanced): raise cls.skipException( 'Advanced image is required to run these tests.') def _create_port_and_server(self, index, port_security=True, allowed_address_pairs=None): server_name = 'server-%s-%d' % (self.rand_name, index) port_name = 'port-%s-%d' % (self.rand_name, index) if port_security: sec_groups = [self.security_group['id']] else: sec_groups = None self.vm_ports.append( self.create_port(network=self.network, name=port_name, security_groups=sec_groups, port_security_enabled=port_security, allowed_address_pairs=allowed_address_pairs)) return self.create_server(flavor_ref=self.flavor_ref, image_ref=self.image_ref, key_name=self.keypair['name'], networks=[{'port': self.vm_ports[-1]['id']}], name=server_name)['server'] def _configure_vlan_transparent(self, port, ssh_client, vlan_tag, vlan_ip): ip_command = ip.IPCommand(ssh_client=ssh_client) addresses = ip_command.list_addresses(port=port) port_iface = ip.get_port_device_name(addresses, port) subport_iface = ip_command.configure_vlan_transparent( port=port, vlan_tag=vlan_tag, ip_addresses=[vlan_ip]) for address in ip_command.list_addresses(ip_addresses=vlan_ip): self.assertEqual(subport_iface, address.device.name) self.assertEqual(port_iface, address.device.parent) break else: self.fail("Sub-port fixed IP not found on server.") def _create_ssh_client(self, floating_ip): if CONF.neutron_plugin_options.default_image_is_advanced: username = CONF.validation.image_ssh_user else: username = CONF.neutron_plugin_options.advanced_image_ssh_user return ssh.Client(host=floating_ip['floating_ip_address'], username=username, pkey=self.keypair['private_key']) def _test_basic_vlan_transparency_connectivity( self, port_security=True, use_allowed_address_pairs=False): vlan_tag = data_utils.rand_int_id(start=MIN_VLAN_ID, end=MAX_VLAN_ID) vlan_ipmask_template = '192.168.%d.{ip_last_byte}/24' % (vlan_tag % 256) vms = [] vlan_ipmasks = [] floating_ips = [] ssh_clients = [] for i in range(2): vlan_ipmasks.append(vlan_ipmask_template.format( ip_last_byte=(i + 1) * 10)) if use_allowed_address_pairs: allowed_address_pairs = [{'ip_address': vlan_ipmasks[i]}] else: allowed_address_pairs = None vms.append(self._create_port_and_server( index=i, port_security=port_security, allowed_address_pairs=allowed_address_pairs)) floating_ips.append(self.create_floatingip(port=self.vm_ports[-1])) ssh_clients.append( self._create_ssh_client(floating_ip=floating_ips[i])) self.check_connectivity( host=floating_ips[i]['floating_ip_address'], ssh_client=ssh_clients[i]) self._configure_vlan_transparent(port=self.vm_ports[-1], ssh_client=ssh_clients[i], vlan_tag=vlan_tag, vlan_ip=vlan_ipmasks[i]) if port_security: # Ping from vm0 to vm1 via VLAN interface should fail because # we haven't allowed ICMP self.check_remote_connectivity( ssh_clients[0], vlan_ipmasks[1].split('/')[0], servers=vms, should_succeed=False) # allow intra-security-group traffic sg_rule = self.create_pingable_secgroup_rule( self.security_group['id']) self.addCleanup( self.os_primary.network_client.delete_security_group_rule, sg_rule['id']) # Ping from vm0 to vm1 via VLAN interface should pass because # either port security is disabled or the ICMP sec group rule has been # added self.check_remote_connectivity( ssh_clients[0], vlan_ipmasks[1].split('/')[0], servers=vms) # Ping from vm1 to vm0 and check untagged packets are not dropped self.check_remote_connectivity( ssh_clients[1], self.vm_ports[-2]['fixed_ips'][0]['ip_address'], servers=vms) @decorators.idempotent_id('a2694e3a-6d4d-4a23-9fcc-c3ed3ef37b16') def test_vlan_transparent_port_sec_disabled(self): self._test_basic_vlan_transparency_connectivity( port_security=False, use_allowed_address_pairs=False) @decorators.idempotent_id('2dd03b4f-9c20-4cda-8c6a-40fa453ec69a') def test_vlan_transparent_allowed_address_pairs(self): self._test_basic_vlan_transparency_connectivity( port_security=True, use_allowed_address_pairs=True)