# vim: tabstop=4 shiftwidth=4 softtabstop=4 # # Copyright 2012 Nicira, Inc # # 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 lxml import etree from nova import config from nova import flags from nova import test from nova import utils from nova.virt.libvirt import config as vconfig from nova.virt.libvirt import vif CONF = config.CONF class LibvirtVifTestCase(test.TestCase): net = { 'cidr': '101.168.1.0/24', 'cidr_v6': '101:1db9::/64', 'gateway_v6': '101:1db9::1', 'netmask_v6': '64', 'netmask': '255.255.255.0', 'bridge': 'br0', 'bridge_interface': 'eth0', 'vlan': 99, 'gateway': '101.168.1.1', 'broadcast': '101.168.1.255', 'dns1': '8.8.8.8', 'id': 'network-id-xxx-yyy-zzz' } mapping = { 'mac': 'ca:fe:de:ad:be:ef', 'gateway_v6': net['gateway_v6'], 'ips': [{'ip': '101.168.1.9'}], 'dhcp_server': '191.168.1.1', 'vif_uuid': 'vif-xxx-yyy-zzz' } instance = { 'name': 'instance-name', 'uuid': 'instance-uuid' } def setUp(self): super(LibvirtVifTestCase, self).setUp() self.flags(allow_same_net_traffic=True) self.executes = [] def fake_execute(*cmd, **kwargs): self.executes.append(cmd) return None, None self.stubs.Set(utils, 'execute', fake_execute) def _get_instance_xml(self, driver): conf = vconfig.LibvirtConfigGuest() conf.virt_type = "qemu" conf.name = "fake-name" conf.uuid = "fake-uuid" conf.memory = 100 * 1024 conf.vcpus = 4 nic = driver.plug(self.instance, (self.net, self.mapping)) conf.add_device(nic) return conf.to_xml() def test_multiple_nics(self): conf = vconfig.LibvirtConfigGuest() conf.virt_type = "qemu" conf.name = "fake-name" conf.uuid = "fake-uuid" conf.memory = 100 * 1024 conf.vcpus = 4 # Tests multiple nic configuration and that target_dev is # set for each nics = [{'net_type': 'bridge', 'mac_addr': '00:00:00:00:00:0b', 'source_dev': 'b_source_dev', 'target_dev': 'b_target_dev'}, {'net_type': 'ethernet', 'mac_addr': '00:00:00:00:00:0e', 'source_dev': 'e_source_dev', 'target_dev': 'e_target_dev'}, {'net_type': 'direct', 'mac_addr': '00:00:00:00:00:0d', 'source_dev': 'd_source_dev', 'target_dev': 'd_target_dev'}] for nic in nics: nic_conf = vconfig.LibvirtConfigGuestInterface() nic_conf.net_type = nic['net_type'] nic_conf.target_dev = nic['target_dev'] nic_conf.mac_addr = nic['mac_addr'] nic_conf.source_dev = nic['source_dev'] conf.add_device(nic_conf) xml = conf.to_xml() doc = etree.fromstring(xml) for nic in nics: path = "./devices/interface/[@type='%s']" % nic['net_type'] node = doc.find(path) self.assertEqual(nic['net_type'], node.get("type")) self.assertEqual(nic['mac_addr'], node.find("mac").get("address")) self.assertEqual(nic['target_dev'], node.find("target").get("dev")) def test_bridge_driver(self): d = vif.LibvirtBridgeDriver() xml = self._get_instance_xml(d) doc = etree.fromstring(xml) ret = doc.findall('./devices/interface') self.assertEqual(len(ret), 1) node = ret[0] self.assertEqual(node.get("type"), "bridge") br_name = node.find("source").get("bridge") self.assertEqual(br_name, self.net['bridge']) mac = node.find("mac").get("address") self.assertEqual(mac, self.mapping['mac']) d.unplug(None, (self.net, self.mapping)) def test_ovs_ethernet_driver(self): d = vif.LibvirtOpenVswitchDriver() xml = self._get_instance_xml(d) doc = etree.fromstring(xml) ret = doc.findall('./devices/interface') self.assertEqual(len(ret), 1) node = ret[0] self.assertEqual(node.get("type"), "ethernet") dev_name = node.find("target").get("dev") self.assertTrue(dev_name.startswith("tap")) mac = node.find("mac").get("address") self.assertEqual(mac, self.mapping['mac']) script = node.find("script").get("path") self.assertEquals(script, "") d.unplug(None, (self.net, self.mapping)) def test_ovs_virtualport_driver(self): d = vif.LibvirtOpenVswitchVirtualPortDriver() xml = self._get_instance_xml(d) doc = etree.fromstring(xml) ret = doc.findall('./devices/interface') self.assertEqual(len(ret), 1) node = ret[0] self.assertEqual(node.get("type"), "bridge") br_name = node.find("source").get("bridge") self.assertEqual(br_name, CONF.libvirt_ovs_bridge) mac = node.find("mac").get("address") self.assertEqual(mac, self.mapping['mac']) vp = node.find("virtualport") self.assertEqual(vp.get("type"), "openvswitch") iface_id_found = False for p_elem in vp.findall("parameters"): iface_id = p_elem.get("interfaceid", None) if iface_id: self.assertEqual(iface_id, self.mapping['vif_uuid']) iface_id_found = True self.assertTrue(iface_id_found) d.unplug(None, (self.net, self.mapping)) def test_quantum_bridge_ethernet_driver(self): d = vif.QuantumLinuxBridgeVIFDriver() xml = self._get_instance_xml(d) doc = etree.fromstring(xml) ret = doc.findall('./devices/interface') self.assertEqual(len(ret), 1) node = ret[0] self.assertEqual(node.get("type"), "bridge") dev_name = node.find("target").get("dev") self.assertTrue(dev_name.startswith("tap")) mac = node.find("mac").get("address") self.assertEqual(mac, self.mapping['mac']) br_name = node.find("source").get("bridge") self.assertTrue(br_name.startswith("brq")) d.unplug(None, (self.net, self.mapping)) def test_quantum_hybrid_driver(self): d = vif.LibvirtHybridOVSBridgeDriver() xml = self._get_instance_xml(d) doc = etree.fromstring(xml) ret = doc.findall('./devices/interface') self.assertEqual(len(ret), 1) node = ret[0] self.assertEqual(node.get("type"), "bridge") br_name = node.find("source").get("bridge") self.assertEqual(br_name, self.net['bridge']) mac = node.find("mac").get("address") self.assertEqual(mac, self.mapping['mac']) d.unplug(None, (self.net, self.mapping))