2 * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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.vpnservice.dhcpservice;
10 import java.math.BigInteger;
11 import java.util.List;
13 import org.apache.commons.lang3.tuple.ImmutablePair;
14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
15 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.vpnservice.dhcpservice.api.DHCPMConstants;
19 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
20 import org.opendaylight.vpnservice.mdsalutil.MDSALDataStoreUtils;
21 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.api.rev150710.InterfaceNameMacAddresses;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.api.rev150710._interface.name.mac.addresses.InterfaceNameMacAddress;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.api.rev150710._interface.name.mac.addresses.InterfaceNameMacAddressBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.api.rev150710._interface.name.mac.addresses.InterfaceNameMacAddressKey;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfTunnel;
34 import org.opendaylight.yangtools.concepts.ListenerRegistration;
35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
39 import com.google.common.base.Optional;
40 import com.google.common.util.concurrent.FutureCallback;
42 public class DhcpInterfaceEventListener extends AbstractDataChangeListener<Interface> implements AutoCloseable {
44 private static final Logger logger = LoggerFactory.getLogger(DhcpInterfaceEventListener.class);
45 private DhcpManager dhcpManager;
46 private ListenerRegistration<DataChangeListener> listenerRegistration;
47 private DataBroker dataBroker;
48 private static final FutureCallback<Void> DEFAULT_CALLBACK = new FutureCallback<Void>() {
50 public void onSuccess(Void result) {
51 logger.debug("Success in Datastore write operation");
55 public void onFailure(Throwable error) {
56 logger.error("Error in Datastore write operation", error);
59 private DhcpExternalTunnelManager dhcpExternalTunnelManager;
61 public DhcpInterfaceEventListener(DhcpManager dhcpManager, DataBroker dataBroker, DhcpExternalTunnelManager dhcpExternalTunnelManager) {
62 super(Interface.class);
63 this.dhcpManager = dhcpManager;
64 this.dataBroker = dataBroker;
65 this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
69 private void registerListener() {
71 listenerRegistration = dataBroker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
72 getWildCardPath(), DhcpInterfaceEventListener.this, DataChangeScope.SUBTREE);
73 } catch (final Exception e) {
74 logger.error("DhcpInterfaceEventListener DataChange listener registration fail!", e);
75 throw new IllegalStateException("DhcpInterfaceEventListener registration Listener failed.", e);
79 private InstanceIdentifier<Interface> getWildCardPath() {
80 return InstanceIdentifier.create(InterfacesState.class).child(Interface.class);
84 public void close() throws Exception {
85 if (listenerRegistration != null) {
87 listenerRegistration.close();
88 } catch (final Exception e) {
89 logger.error("Error when cleaning up DataChangeListener.", e);
91 listenerRegistration = null;
93 logger.info("Interface Manager Closed");
98 protected void remove(InstanceIdentifier<Interface> identifier, Interface del) {
99 List<String> ofportIds = del.getLowerLayerIf();
100 if (ofportIds == null || ofportIds.isEmpty()) {
103 NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
104 BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
105 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
106 DhcpServiceUtils.getInterfaceFromConfigDS(del.getName(), dataBroker);
108 IfTunnel tunnelInterface = iface.getAugmentation(IfTunnel.class);
109 if (tunnelInterface != null && !tunnelInterface.isInternal()) {
110 IpAddress tunnelIp = tunnelInterface.getTunnelDestination();
111 List<BigInteger> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
112 if (dpns.contains(dpId)) {
113 dhcpExternalTunnelManager.handleTunnelStateDown(tunnelIp, dpId);
118 String interfaceName = del.getName();
119 logger.trace("Received remove DCN for interface {} dpId {}", interfaceName, dpId);
120 unInstallDhcpEntries(interfaceName, dpId);
121 dhcpManager.removeInterfaceCache(interfaceName);
125 protected void update(InstanceIdentifier<Interface> identifier,
126 Interface original, Interface update) {
127 List<String> ofportIds = update.getLowerLayerIf();
128 if (ofportIds == null || ofportIds.isEmpty()) {
131 NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
132 BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
133 String interfaceName = update.getName();
134 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
135 DhcpServiceUtils.getInterfaceFromConfigDS(interfaceName, dataBroker);
137 logger.trace("Interface {} is not present in the config DS", interfaceName);
140 if (update.getType() == null) {
141 logger.trace("Interface type for interface {} is null", interfaceName);
144 if ((original.getOperStatus().getIntValue() ^ update.getOperStatus().getIntValue()) == 0) {
145 logger.trace("Interface operstatus {} is same", update.getOperStatus());
148 if (Tunnel.class.equals(update.getType())) {
149 IfTunnel tunnelInterface = iface.getAugmentation(IfTunnel.class);
150 if (tunnelInterface != null && !tunnelInterface.isInternal()) {
151 IpAddress tunnelIp = tunnelInterface.getTunnelDestination();
152 List<BigInteger> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
153 if (dpns.contains(dpId)) {
154 if (update.getOperStatus() == OperStatus.Down) {
155 dhcpExternalTunnelManager.handleTunnelStateDown(tunnelIp, dpId);
156 } else if (update.getOperStatus() == OperStatus.Up) {
157 dhcpExternalTunnelManager.handleTunnelStateUp(tunnelIp, dpId);
166 protected void add(InstanceIdentifier<Interface> identifier, Interface add) {
167 String interfaceName = add.getName();
168 List<String> ofportIds = add.getLowerLayerIf();
169 if (ofportIds == null || ofportIds.isEmpty()) {
172 NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
173 BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
174 logger.trace("Received add DCN for interface {}, dpid {}", interfaceName, dpId);
175 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
176 DhcpServiceUtils.getInterfaceFromConfigDS(add.getName(), dataBroker);
178 IfTunnel tunnelInterface = iface.getAugmentation(IfTunnel.class);
179 if (tunnelInterface != null && !tunnelInterface.isInternal()) {
180 IpAddress tunnelIp = tunnelInterface.getTunnelDestination();
181 List<BigInteger> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
182 if (dpns.contains(dpId)) {
183 dhcpExternalTunnelManager.handleTunnelStateUp(tunnelIp, dpId);
188 if (!dpId.equals(DHCPMConstants.INVALID_DPID)) {
189 installDhcpEntries(interfaceName, dpId);
190 dhcpManager.updateInterfaceCache(interfaceName, new ImmutablePair<BigInteger, String>(dpId, add.getPhysAddress().getValue()));
194 private String getNeutronMacAddress(String interfaceName) {
195 Port port = dhcpManager.getNeutronPort(interfaceName);
197 logger.trace("Port found in neutron. Interface Name {}, port {}", interfaceName, port);
198 return port.getMacAddress().getValue();
203 private void unInstallDhcpEntries(String interfaceName, BigInteger dpId) {
204 String vmMacAddress = getAndRemoveVmMacAddress(interfaceName);
205 dhcpManager.unInstallDhcpEntries(dpId, vmMacAddress);
208 private void installDhcpEntries(String interfaceName, BigInteger dpId) {
209 String vmMacAddress = getAndUpdateVmMacAddress(interfaceName);
210 dhcpManager.installDhcpEntries(dpId, vmMacAddress);
213 private String getAndUpdateVmMacAddress(String interfaceName) {
214 InstanceIdentifier<InterfaceNameMacAddress> instanceIdentifier = InstanceIdentifier.builder(InterfaceNameMacAddresses.class).child(InterfaceNameMacAddress.class, new InterfaceNameMacAddressKey(interfaceName)).build();
215 Optional<InterfaceNameMacAddress> existingEntry = MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, instanceIdentifier);
216 if (!existingEntry.isPresent()) {
217 logger.trace("Entry for interface {} missing in InterfaceNameVmMacAddress map", interfaceName);
218 String vmMacAddress = getNeutronMacAddress(interfaceName);
219 if (vmMacAddress==null || vmMacAddress.isEmpty()) {
222 logger.trace("Updating InterfaceNameVmMacAddress map with {}, {}", interfaceName,vmMacAddress);
223 InterfaceNameMacAddress interfaceNameMacAddress = new InterfaceNameMacAddressBuilder().setKey(new InterfaceNameMacAddressKey(interfaceName)).setInterfaceName(interfaceName).setMacAddress(vmMacAddress).build();
224 MDSALUtil.syncUpdate(dataBroker, LogicalDatastoreType.OPERATIONAL, instanceIdentifier, interfaceNameMacAddress);
227 return existingEntry.get().getMacAddress();
230 private String getAndRemoveVmMacAddress(String interfaceName) {
231 InstanceIdentifier<InterfaceNameMacAddress> instanceIdentifier = InstanceIdentifier.builder(InterfaceNameMacAddresses.class).child(InterfaceNameMacAddress.class, new InterfaceNameMacAddressKey(interfaceName)).build();
232 Optional<InterfaceNameMacAddress> existingEntry = MDSALUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, instanceIdentifier);
233 if (existingEntry.isPresent()) {
234 String vmMacAddress = existingEntry.get().getMacAddress();
235 logger.trace("Entry for interface found in InterfaceNameVmMacAddress map {}, {}", interfaceName, vmMacAddress);
236 MDSALDataStoreUtils.asyncRemove(dataBroker, LogicalDatastoreType.OPERATIONAL, instanceIdentifier, DEFAULT_CALLBACK);
239 logger.trace("Entry for interface {} missing in InterfaceNameVmMacAddress map", interfaceName);