2 * Copyright (c) 2016 Hewlett Packard Enterprise, Co. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.netvirt.vpnmanager;
10 import com.google.common.net.InetAddresses;
11 import java.math.BigInteger;
12 import java.util.Collection;
13 import java.util.concurrent.ExecutionException;
14 import java.util.concurrent.Future;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
18 import org.opendaylight.genius.mdsalutil.MDSALUtil;
19 import org.opendaylight.netvirt.elanmanager.api.IElanService;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressBuilder;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceInput;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceInputBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceOutput;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.FloatingIpInfo;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.RouterPorts;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.Ports;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.ports.IpMapping;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingService;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.TransmitPacketInput;
35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
36 import org.opendaylight.yangtools.yang.common.RpcResult;
37 import org.slf4j.Logger;
38 import org.slf4j.LoggerFactory;
40 public class FloatingIpGarpHandler extends AsyncDataTreeChangeListenerBase<RouterPorts, FloatingIpGarpHandler>
41 implements AutoCloseable {
42 private static final Logger LOG = LoggerFactory.getLogger(FloatingIpGarpHandler.class);
43 private final DataBroker dataBroker;
44 private final PacketProcessingService packetService;
45 private final IElanService elanService;
46 private final OdlInterfaceRpcService intfRpc;
48 public FloatingIpGarpHandler(final DataBroker dataBroker, final PacketProcessingService packetService,
49 final IElanService elanService, final OdlInterfaceRpcService interfaceManager) {
50 super(RouterPorts.class, FloatingIpGarpHandler.class);
51 this.dataBroker = dataBroker;
52 this.packetService = packetService;
53 this.elanService = elanService;
54 this.intfRpc = interfaceManager;
58 LOG.info("{} start", getClass().getSimpleName());
59 registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
63 protected InstanceIdentifier<RouterPorts> getWildCardPath() {
64 return InstanceIdentifier.create(FloatingIpInfo.class).child(RouterPorts.class);
68 protected void remove(InstanceIdentifier<RouterPorts> key, RouterPorts dataObjectModification) {
72 protected void update(InstanceIdentifier<RouterPorts> key, RouterPorts dataObjectModificationBefore,
73 RouterPorts dataObjectModificationAfter) {
74 sendGarpForFloatingIps(dataObjectModificationAfter);
77 private void sendGarpForFloatingIps(RouterPorts dataObjectModificationAfter) {
78 for (Ports port : dataObjectModificationAfter.getPorts()) {
79 for (IpMapping ipMapping : port.getIpMapping()) {
80 IpAddress ip = IpAddressBuilder.getDefaultInstance(ipMapping.getExternalIp());
81 sendGarpForIp(dataObjectModificationAfter, ip);
86 private void sendGarpForIp(RouterPorts dataObjectModificationAfter, IpAddress ip) {
87 if (ip.getIpv4Address() == null) {
88 LOG.warn("Faild to send GARP for IP. recieved IPv6.");
91 Port floatingIpPort = VpnUtil.getNeutronPortForFloatingIp(dataBroker, ip);
92 MacAddress floatingIpMac = floatingIpPort.getMacAddress();
93 String extNet = VpnUtil.getAssociatedExternalNetwork(dataBroker, dataObjectModificationAfter.getRouterId());
94 Collection<String> interfaces = elanService.getExternalElanInterfaces(extNet);
95 for (String externalInterface:interfaces) {
96 sendGarpOnInterface(ip, floatingIpMac, externalInterface);
101 private void sendGarpOnInterface(IpAddress ip, MacAddress floatingIpMac, String externalInterface) {
102 GetPortFromInterfaceInput getPortFromInterfaceInput = new GetPortFromInterfaceInputBuilder().setIntfName(externalInterface).build();
103 Future<RpcResult<GetPortFromInterfaceOutput>> interfacePort = intfRpc.getPortFromInterface(getPortFromInterfaceInput);
105 BigInteger dpId = interfacePort.get().getResult().getDpid();
106 String portName = interfacePort.get().getResult().getPortname();
107 NodeConnectorRef ingress = MDSALUtil.getNodeConnRef(dpId, portName);
108 byte[] ipBytes = InetAddresses.forString(ip.getIpv4Address().getValue()).getAddress();
109 TransmitPacketInput arpRequestInput = ArpUtils.createArpRequestInput(dpId, ArpUtils.getMacInBytes(floatingIpMac.getValue()), ipBytes, ipBytes, ingress);
110 packetService.transmitPacket(arpRequestInput);
111 } catch (InterruptedException e) {
112 LOG.warn("Faild to send GARP. rpc call getPortFromInterface did not return with a value.");
113 } catch (ExecutionException e) {
114 LOG.warn("Faild to send GARP. rpc call getPortFromInterface did not return with a value.");
120 protected void add(InstanceIdentifier<RouterPorts> key, RouterPorts dataObjectModification) {
121 sendGarpForFloatingIps(dataObjectModification);
125 protected FloatingIpGarpHandler getDataTreeChangeListener() {