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* Licensed to the Apache Software Foundation (ASF) under one
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* 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 java.util.Map;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import org.libvirt.LibvirtException;
import com.cloud.agent.api.to.NicTO;
import com.cloud.exception.InternalErrorException;
import com.cloud.hypervisor.kvm.resource.LibvirtVMDef.InterfaceDef;
import com.cloud.network.Networks;
import com.cloud.utils.NumbersUtil;
import com.cloud.utils.net.NetUtils;
import com.cloud.utils.script.OutputInterpreter;
import com.cloud.utils.script.Script;
public class OvsVifDriver extends VifDriverBase {
private static final Logger s_logger = Logger.getLogger(OvsVifDriver.class);
private int _timeout;
@Override
public void configure(Map<String, Object> params) throws ConfigurationException {
super.configure(params);
String networkScriptsDir = (String)params.get("network.scripts.dir");
if (networkScriptsDir == null) {
networkScriptsDir = "scripts/vm/network/vnet";
}
String value = (String)params.get("scripts.timeout");
_timeout = NumbersUtil.parseInt(value, 30 * 60) * 1000;
createControlNetwork(_bridges.get("linklocal"));
}
@Override
public InterfaceDef plug(NicTO nic, String guestOsType, String nicAdapter) throws InternalErrorException, LibvirtException {
s_logger.debug("plugging nic=" + nic);
LibvirtVMDef.InterfaceDef intf = new LibvirtVMDef.InterfaceDef();
intf.setVirtualPortType("openvswitch");
String vlanId = null;
String logicalSwitchUuid = null;
if (nic.getBroadcastType() == Networks.BroadcastDomainType.Vlan) {
vlanId = Networks.BroadcastDomainType.getValue(nic.getBroadcastUri());
} else if (nic.getBroadcastType() == Networks.BroadcastDomainType.Lswitch) {
logicalSwitchUuid = Networks.BroadcastDomainType.getValue(nic.getBroadcastUri());
} else if (nic.getBroadcastType() == Networks.BroadcastDomainType.Pvlan) {
// TODO consider moving some of this functionality from NetUtils to Networks....
vlanId = NetUtils.getPrimaryPvlanFromUri(nic.getBroadcastUri());
}
String trafficLabel = nic.getName();
if (nic.getType() == Networks.TrafficType.Guest) {
Integer networkRateKBps = (nic.getNetworkRateMbps() != null && nic.getNetworkRateMbps().intValue() != -1) ? nic.getNetworkRateMbps().intValue() * 128 : 0;
if ((nic.getBroadcastType() == Networks.BroadcastDomainType.Vlan || nic.getBroadcastType() == Networks.BroadcastDomainType.Pvlan) &&
!vlanId.equalsIgnoreCase("untagged")) {
if (trafficLabel != null && !trafficLabel.isEmpty()) {
s_logger.debug("creating a vlan dev and bridge for guest traffic per traffic label " + trafficLabel);
intf.defBridgeNet(_pifs.get(trafficLabel), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
intf.setVlanTag(Integer.parseInt(vlanId));
} else {
intf.defBridgeNet(_pifs.get("private"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
intf.setVlanTag(Integer.parseInt(vlanId));
}
} else if (nic.getBroadcastType() == Networks.BroadcastDomainType.Lswitch || nic.getBroadcastType() == Networks.BroadcastDomainType.OpenDaylight) {
s_logger.debug("nic " + nic + " needs to be connected to LogicalSwitch " + logicalSwitchUuid);
intf.setVirtualPortInterfaceId(nic.getUuid());
String brName = (trafficLabel != null && !trafficLabel.isEmpty()) ? _pifs.get(trafficLabel) : _pifs.get("private");
intf.defBridgeNet(brName, null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
} else if (nic.getBroadcastType() == Networks.BroadcastDomainType.Vswitch) {
String vnetId = Networks.BroadcastDomainType.getValue(nic.getBroadcastUri());
String brName = "OVSTunnel" + vnetId;
s_logger.debug("nic " + nic + " needs to be connected to LogicalSwitch " + brName);
intf.defBridgeNet(brName, null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
} else if (nic.getBroadcastType() == Networks.BroadcastDomainType.Vsp) {
intf.setVirtualPortInterfaceId(nic.getUuid());
String brName = (trafficLabel != null && !trafficLabel.isEmpty()) ? _pifs.get(trafficLabel) : _pifs.get("private");
intf.defBridgeNet(brName, null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
} else {
intf.defBridgeNet(_bridges.get("guest"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
}
} else if (nic.getType() == Networks.TrafficType.Control) {
/* Make sure the network is still there */
createControlNetwork(_bridges.get("linklocal"));
intf.defBridgeNet(_bridges.get("linklocal"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter));
} else if (nic.getType() == Networks.TrafficType.Public) {
Integer networkRateKBps = (nic.getNetworkRateMbps() != null && nic.getNetworkRateMbps().intValue() != -1) ? nic.getNetworkRateMbps().intValue() * 128 : 0;
if (nic.getBroadcastType() == Networks.BroadcastDomainType.Vlan && !vlanId.equalsIgnoreCase("untagged")) {
if (trafficLabel != null && !trafficLabel.isEmpty()) {
s_logger.debug("creating a vlan dev and bridge for public traffic per traffic label " + trafficLabel);
intf.defBridgeNet(_pifs.get(trafficLabel), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
intf.setVlanTag(Integer.parseInt(vlanId));
} else {
intf.defBridgeNet(_pifs.get("public"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
intf.setVlanTag(Integer.parseInt(vlanId));
}
} else {
intf.defBridgeNet(_bridges.get("public"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter), networkRateKBps);
}
} else if (nic.getType() == Networks.TrafficType.Management) {
intf.defBridgeNet(_bridges.get("private"), null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter));
} else if (nic.getType() == Networks.TrafficType.Storage) {
String storageBrName = nic.getName() == null ? _bridges.get("private") : nic.getName();
intf.defBridgeNet(storageBrName, null, nic.getMac(), getGuestNicModel(guestOsType, nicAdapter));
}
return intf;
}
@Override
public void unplug(InterfaceDef iface) {
// Libvirt apparently takes care of this, see BridgeVifDriver unplug
}
private void deleteExitingLinkLocalRouteTable(String linkLocalBr) {
Script command = new Script("/bin/bash", _timeout);
command.add("-c");
command.add("ip route | grep " + NetUtils.getLinkLocalCIDR());
OutputInterpreter.AllLinesParser parser = new OutputInterpreter.AllLinesParser();
String result = command.execute(parser);
boolean foundLinkLocalBr = false;
if (result == null && parser.getLines() != null) {
String[] lines = parser.getLines().split("\\n");
for (String line : lines) {
String[] tokens = line.split(" ");
if (!tokens[2].equalsIgnoreCase(linkLocalBr)) {
Script.runSimpleBashScript("ip route del " + NetUtils.getLinkLocalCIDR());
} else {
foundLinkLocalBr = true;
}
}
}
if (!foundLinkLocalBr) {
Script.runSimpleBashScript("ip address add 169.254.0.1/16 dev " + linkLocalBr + ";" + "ip route add " + NetUtils.getLinkLocalCIDR() + " dev " + linkLocalBr + " src " +
NetUtils.getLinkLocalGateway());
}
}
private void createControlNetwork(String privBrName) {
deleteExitingLinkLocalRouteTable(privBrName);
if (!isBridgeExists(privBrName)) {
Script.runSimpleBashScript("ovs-vsctl add-br " + privBrName + "; ip link set " + privBrName + " up; ip address add 169.254.0.1/16 dev " + privBrName, _timeout);
}
}
private boolean isBridgeExists(String bridgeName) {
Script command = new Script("/bin/sh", _timeout);
command.add("-c");
command.add("ovs-vsctl br-exists " + bridgeName);
String result = command.execute(null);
if ("0".equals(result)) {
return true;
} else {
return false;
}
}
}