| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| package com.cloud.hypervisor.kvm.resource; |
| |
| import com.cloud.agent.api.to.NicTO; |
| import com.cloud.exception.InternalErrorException; |
| import com.cloud.utils.TungstenUtils; |
| import com.cloud.utils.script.Script; |
| import org.apache.log4j.Logger; |
| import org.joda.time.Duration; |
| import org.libvirt.LibvirtException; |
| |
| import java.io.File; |
| import java.util.Map; |
| |
| import javax.naming.ConfigurationException; |
| |
| public class VRouterVifDriver extends VifDriverBase { |
| private static final Logger s_logger = Logger.getLogger(VRouterVifDriver.class); |
| private String createTapDeviceScript; |
| private String deleteTapDeviceScript; |
| |
| @Override |
| public void configure(final Map<String, Object> params) throws ConfigurationException { |
| |
| super.configure(params); |
| |
| String tungstenScriptsDir = (String) params.get("tungsten.scripts.dir"); |
| tungstenScriptsDir = tungstenScriptsDir == null ? _libvirtComputingResource.getDefaultTungstenScriptsDir() : tungstenScriptsDir; |
| |
| createTapDeviceScript = Script.findScript(tungstenScriptsDir, "create_tap_device.sh"); |
| deleteTapDeviceScript = Script.findScript(tungstenScriptsDir, "delete_tap_device.sh"); |
| |
| if (createTapDeviceScript == null) { |
| throw new ConfigurationException("Unable to find create_tap_device.sh"); |
| } |
| |
| if (deleteTapDeviceScript == null) { |
| throw new ConfigurationException("Unable to find delete_tap_device.sh"); |
| } |
| } |
| |
| @Override |
| public LibvirtVMDef.InterfaceDef plug(final NicTO nic, final String guestOsType, final String nicAdapter, |
| final Map<String, String> extraConfig) throws InternalErrorException, LibvirtException { |
| |
| final String tapDeviceName = TungstenUtils.getTapName(nic.getMac()); |
| final String script = createTapDeviceScript; |
| |
| final Script command = new Script(script, Duration.standardSeconds(300), s_logger); |
| command.add(tapDeviceName); |
| |
| final String result = command.execute(); |
| if (result != null) { |
| throw new InternalErrorException("Failed to create tap device " + tapDeviceName + ": " + result); |
| } |
| |
| final LibvirtVMDef.InterfaceDef intf = new LibvirtVMDef.InterfaceDef(); |
| intf.defEthernet(tapDeviceName, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter)); |
| |
| return intf; |
| } |
| |
| @Override |
| public void unplug(final LibvirtVMDef.InterfaceDef iface, boolean deleteBr) { |
| final String tapDeviceName = TungstenUtils.getTapName(iface.getMacAddress()); |
| final String script = deleteTapDeviceScript; |
| |
| final Script command = new Script(script, Duration.standardSeconds(300), s_logger); |
| command.add(tapDeviceName); |
| |
| final String result = command.execute(); |
| if (result != null) { |
| s_logger.error("Failed to delete tap device " + tapDeviceName + ": " + result); |
| } |
| } |
| |
| @Override |
| public void attach(final LibvirtVMDef.InterfaceDef iface) { |
| // not use |
| } |
| |
| @Override |
| public void detach(final LibvirtVMDef.InterfaceDef iface) { |
| // not use |
| } |
| |
| @Override |
| public void createControlNetwork(final String privBrName) { |
| // not use |
| } |
| |
| @Override |
| public boolean isExistingBridge(String bridgeName) { |
| File f = new File("/sys/devices/virtual/net/" + bridgeName); |
| File bridge = new File("/sys/devices/virtual/net/" + bridgeName + "/bridge"); |
| return f.exists() && ! bridge.exists(); |
| } |
| |
| @Override |
| public void deleteBr(NicTO nic) { |
| // not use |
| } |
| } |