# 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. import mock import os.path import testtools from oslo_concurrency import processutils from vif_plug_ovs import constants from vif_plug_ovs import linux_net from vif_plug_ovs import privsep class LinuxNetTest(testtools.TestCase): def setUp(self): super(LinuxNetTest, self).setUp() privsep.vif_plug.set_client_mode(False) @mock.patch.object(processutils, "execute") @mock.patch.object(linux_net, "device_exists", return_value=True) def test_ensure_bridge_exists(self, mock_dev_exists, mock_execute): linux_net.ensure_bridge("br0") self.assertEqual(mock_execute.mock_calls, []) self.assertEqual(mock_dev_exists.mock_calls, [ mock.call("br0") ]) @mock.patch.object(os.path, "exists", return_value=False) @mock.patch.object(processutils, "execute") @mock.patch.object(linux_net, "device_exists", return_value=False) def test_ensure_bridge_new_ipv4(self, mock_dev_exists, mock_execute, mock_path_exists): linux_net.ensure_bridge("br0") self.assertEqual(mock_execute.mock_calls, [ mock.call('brctl', 'addbr', 'br0'), mock.call('brctl', 'setfd', 'br0', 0), mock.call('brctl', 'stp', 'br0', "off"), mock.call('tee', '/sys/class/net/br0/bridge/multicast_snooping', check_exit_code=[0, 1], process_input='0'), ]) self.assertEqual(mock_dev_exists.mock_calls, [ mock.call("br0") ]) @mock.patch.object(os.path, "exists", return_value=True) @mock.patch.object(processutils, "execute") @mock.patch.object(linux_net, "device_exists", return_value=False) def test_ensure_bridge_new_ipv6(self, mock_dev_exists, mock_execute, mock_path_exists): linux_net.ensure_bridge("br0") self.assertEqual(mock_execute.mock_calls, [ mock.call('brctl', 'addbr', 'br0'), mock.call('brctl', 'setfd', 'br0', 0), mock.call('brctl', 'stp', 'br0', "off"), mock.call('tee', '/sys/class/net/br0/bridge/multicast_snooping', check_exit_code=[0, 1], process_input='0'), mock.call('tee', '/proc/sys/net/ipv6/conf/br0/disable_ipv6', check_exit_code=[0, 1], process_input='1'), ]) self.assertEqual(mock_dev_exists.mock_calls, [ mock.call("br0") ]) @mock.patch.object(processutils, "execute") @mock.patch.object(linux_net, "device_exists", return_value=False) def test_delete_bridge_none(self, mock_dev_exists, mock_execute): linux_net.delete_bridge("br0", "vnet1") self.assertEqual(mock_execute.mock_calls, []) self.assertEqual(mock_dev_exists.mock_calls, [ mock.call("br0") ]) @mock.patch.object(processutils, "execute") @mock.patch.object(linux_net, "device_exists", return_value=True) def test_delete_bridge_exists(self, mock_dev_exists, mock_execute): linux_net.delete_bridge("br0", "vnet1") self.assertEqual(mock_execute.mock_calls, [ mock.call('brctl', 'delif', 'br0', 'vnet1'), mock.call('ip', 'link', 'set', 'br0', 'down'), mock.call('brctl', 'delbr', 'br0'), ]) self.assertEqual(mock_dev_exists.mock_calls, [ mock.call("br0") ]) @mock.patch.object(processutils, "execute") def test_add_bridge_port(self, mock_execute): linux_net.add_bridge_port("br0", "vnet1") self.assertEqual(mock_execute.mock_calls, [ mock.call('ip', 'link', 'set', 'br0', 'up'), mock.call('brctl', 'addif', 'br0', 'vnet1'), ]) def test_ovs_vif_port_cmd(self): expected = ['--', '--if-exists', 'del-port', 'fake-dev', '--', 'add-port', 'fake-bridge', 'fake-dev', '--', 'set', 'Interface', 'fake-dev', 'external-ids:iface-id=fake-iface-id', 'external-ids:iface-status=active', 'external-ids:attached-mac=fake-mac', 'external-ids:vm-uuid=fake-instance-uuid'] cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', 'fake-instance-uuid') self.assertEqual(expected, cmd) expected += ['type=fake-type'] cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', 'fake-instance-uuid', 'fake-type') self.assertEqual(expected, cmd) expected += ['options:vhost-server-path=/fake/path'] cmd = linux_net._create_ovs_vif_cmd('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', 'fake-instance-uuid', 'fake-type', vhost_server_path='/fake/path') self.assertEqual(expected, cmd) @mock.patch.object(linux_net, '_create_ovs_bridge_cmd') @mock.patch.object(linux_net, '_ovs_vsctl') def test_ensure_ovs_bridge(self, mock_vsctl, mock_create_ovs_bridge): bridge = 'fake-bridge' dp_type = 'fake-type' linux_net.ensure_ovs_bridge(bridge, dp_type) mock_create_ovs_bridge.assert_called_once_with(bridge, dp_type) self.assertTrue(mock_vsctl.called) def test_create_ovs_bridge_cmd(self): bridge = 'fake-bridge' dp_type = 'fake-type' expected = ['--', '--may-exist', 'add-br', bridge, '--', 'set', 'Bridge', bridge, 'datapath_type=%s' % dp_type] actual = linux_net._create_ovs_bridge_cmd(bridge, dp_type) self.assertEqual(expected, actual) @mock.patch.object(linux_net, '_ovs_supports_mtu_requests') @mock.patch.object(linux_net, '_ovs_vsctl') @mock.patch.object(linux_net, '_create_ovs_vif_cmd') @mock.patch.object(linux_net, '_set_device_mtu') def test_ovs_vif_port_with_type_vhostuser(self, mock_set_device_mtu, mock_create_cmd, mock_vsctl, mock_ovs_supports_mtu_requests): mock_ovs_supports_mtu_requests.return_value = True linux_net.create_ovs_vif_port( 'fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", mtu=1500, interface_type=constants.OVS_VHOSTUSER_INTERFACE_TYPE) mock_create_cmd.assert_called_once_with('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", constants.OVS_VHOSTUSER_INTERFACE_TYPE, None) self.assertFalse(mock_set_device_mtu.called) self.assertTrue(mock_vsctl.called) @mock.patch.object(linux_net, '_ovs_supports_mtu_requests') @mock.patch.object(linux_net, '_ovs_vsctl') @mock.patch.object(linux_net, '_create_ovs_vif_cmd') @mock.patch.object(linux_net, '_set_device_mtu') def test_ovs_vif_port_with_type_vhostuserclient(self, mock_set_device_mtu, mock_create_cmd, mock_vsctl, mock_ovs_supports_mtu_requests): mock_ovs_supports_mtu_requests.return_value = True linux_net.create_ovs_vif_port( 'fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", mtu=1500, interface_type=constants.OVS_VHOSTUSER_CLIENT_INTERFACE_TYPE, vhost_server_path="/fake/path") mock_create_cmd.assert_called_once_with('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", constants.OVS_VHOSTUSER_CLIENT_INTERFACE_TYPE, "/fake/path") self.assertFalse(mock_set_device_mtu.called) self.assertTrue(mock_vsctl.called) @mock.patch.object(linux_net, '_ovs_supports_mtu_requests') @mock.patch.object(linux_net, '_ovs_vsctl') @mock.patch.object(linux_net, '_create_ovs_vif_cmd') @mock.patch.object(linux_net, '_set_device_mtu') def test_ovs_vif_port_with_no_mtu(self, mock_set_device_mtu, mock_create_cmd, mock_vsctl, mock_ovs_supports_mtu_requests): mock_ovs_supports_mtu_requests.return_value = True linux_net.create_ovs_vif_port( 'fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid") mock_create_cmd.assert_called_once_with('fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", None, None) self.assertFalse(mock_set_device_mtu.called) self.assertTrue(mock_vsctl.called) @mock.patch.object(linux_net, '_ovs_supports_mtu_requests') @mock.patch.object(linux_net, '_set_mtu_request') @mock.patch.object(linux_net, '_ovs_vsctl') @mock.patch.object(linux_net, '_create_ovs_vif_cmd', return_value='ovs_command') @mock.patch.object(linux_net, '_set_device_mtu') def test_ovs_vif_port_with_timeout(self, mock_set_device_mtu, mock_create_cmd, mock_vsctl, mock_set_mtu_request, mock_ovs_supports_mtu_requests): mock_ovs_supports_mtu_requests.return_value = True linux_net.create_ovs_vif_port( 'fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid", timeout=42) self.assertTrue(mock_create_cmd.called) self.assertFalse(mock_set_device_mtu.called) mock_vsctl.assert_called_with('ovs_command', timeout=42) @mock.patch.object(linux_net, '_ovs_supports_mtu_requests') @mock.patch.object(linux_net, '_set_mtu_request') @mock.patch.object(linux_net, '_ovs_vsctl') @mock.patch.object(linux_net, '_create_ovs_vif_cmd', return_value='ovs_command') @mock.patch.object(linux_net, '_set_device_mtu') def test_ovs_vif_port_with_no_timeout(self, mock_set_device_mtu, mock_create_cmd, mock_vsctl, mock_set_mtu_request, mock_ovs_supports_mtu_requests): mock_ovs_supports_mtu_requests.return_value = True linux_net.create_ovs_vif_port( 'fake-bridge', 'fake-dev', 'fake-iface-id', 'fake-mac', "fake-instance-uuid") self.assertTrue(mock_create_cmd.called) self.assertFalse(mock_set_device_mtu.called) mock_vsctl.assert_called_with('ovs_command', timeout=None) @mock.patch.object(processutils, "execute") def test_ovs_vsctl(self, mock_execute): args = ['fake-args', 42] timeout = 42 linux_net._ovs_vsctl(args) linux_net._ovs_vsctl(args, timeout=timeout) self.assertEqual( [mock.call('ovs-vsctl', *args), mock.call('ovs-vsctl', '--timeout=%s' % timeout, *args)], mock_execute.mock_calls) @mock.patch.object(linux_net, '_ovs_vsctl') def test_set_mtu_request(self, mock_vsctl): dev = 'fake-dev' mtu = 'fake-mtu' timeout = 120 linux_net._set_mtu_request(dev, mtu, timeout=timeout) args = ['--', 'set', 'interface', dev, 'mtu_request=%s' % mtu] mock_vsctl.assert_called_with(args, timeout=timeout) @mock.patch.object(linux_net, '_ovs_vsctl') def test_ovs_supports_mtu_requests(self, mock_vsctl): args = ['--columns=mtu_request', 'list', 'interface'] timeout = 120 msg = 'ovs-vsctl: Interface does not contain' + \ ' a column whose name matches "mtu_request"' mock_vsctl.return_value = (None, msg) result = linux_net._ovs_supports_mtu_requests(timeout=timeout) mock_vsctl.assert_called_with(args, timeout=timeout) self.assertFalse(result) mock_vsctl.return_value = (None, None) result = linux_net._ovs_supports_mtu_requests(timeout=timeout) mock_vsctl.assert_called_with(args, timeout=timeout) self.assertTrue(result)