2 * Copyright (c) 2016, 2018 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.netvirt.elan.internal;
10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
11 import static org.opendaylight.genius.infra.Datastore.OPERATIONAL;
13 import com.google.common.base.Optional;
14 import com.google.common.util.concurrent.ListenableFuture;
15 import java.math.BigInteger;
16 import java.util.ArrayList;
17 import java.util.Collections;
18 import java.util.List;
19 import java.util.Objects;
20 import javax.inject.Inject;
21 import javax.inject.Singleton;
22 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
23 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
24 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
25 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
26 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
27 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
28 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
29 import org.opendaylight.genius.mdsalutil.NWUtil;
30 import org.opendaylight.genius.mdsalutil.NwConstants;
31 import org.opendaylight.genius.mdsalutil.packet.Ethernet;
32 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
33 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
34 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
35 import org.opendaylight.netvirt.elan.evpn.utils.EvpnUtils;
36 import org.opendaylight.netvirt.elan.l2gw.utils.ElanL2GatewayUtils;
37 import org.opendaylight.netvirt.elan.utils.ElanUtils;
38 import org.opendaylight.openflowplugin.libraries.liblldp.PacketException;
39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan._interface.forwarding.entries.ElanInterfaceMac;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntryBuilder;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntryKey;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.NoMatch;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketInReason;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
52 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
53 import org.opendaylight.yangtools.yang.common.Uint32;
54 import org.opendaylight.yangtools.yang.common.Uint64;
55 import org.slf4j.Logger;
56 import org.slf4j.LoggerFactory;
59 public class ElanPacketInHandler implements PacketProcessingListener {
61 private static final Logger LOG = LoggerFactory.getLogger(ElanPacketInHandler.class);
63 private final ManagedNewTransactionRunner txRunner;
64 private final IInterfaceManager interfaceManager;
65 private final ElanUtils elanUtils;
66 private final ElanL2GatewayUtils elanL2GatewayUtils;
67 private final EvpnUtils evpnUtils;
68 private final JobCoordinator jobCoordinator;
69 private final ElanInstanceCache elanInstanceCache;
70 private final ElanManagerCounters elanManagerCounters;
73 public ElanPacketInHandler(DataBroker dataBroker, final IInterfaceManager interfaceManager, ElanUtils elanUtils,
74 EvpnUtils evpnUtils, ElanL2GatewayUtils elanL2GatewayUtils, JobCoordinator jobCoordinator,
75 ElanInstanceCache elanInstanceCache, ElanManagerCounters elanManagerCounters) {
76 this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
77 this.interfaceManager = interfaceManager;
78 this.elanUtils = elanUtils;
79 this.elanL2GatewayUtils = elanL2GatewayUtils;
80 this.evpnUtils = evpnUtils;
81 this.jobCoordinator = jobCoordinator;
82 this.elanInstanceCache = elanInstanceCache;
83 this.elanManagerCounters = elanManagerCounters;
87 public void onPacketReceived(PacketReceived notification) {
88 Class<? extends PacketInReason> pktInReason = notification.getPacketInReason();
89 short tableId = notification.getTableId().getValue().toJava();
90 if (pktInReason == NoMatch.class && tableId == NwConstants.ELAN_SMAC_TABLE) {
91 elanManagerCounters.unknownSmacPktinRcv();
93 byte[] data = notification.getPayload();
94 Ethernet res = new Ethernet();
96 res.deserialize(data, 0, data.length * Byte.SIZE);
98 byte[] srcMac = res.getSourceMACAddress();
99 final String macAddress = NWUtil.toStringMacAddress(srcMac);
100 final Uint64 metadata = notification.getMatch().getMetadata().getMetadata();
101 final Uint32 elanTag = Uint32.valueOf(MetaDataUtil.getElanTagFromMetadata(metadata));
103 Uint32 portTag = Uint32.valueOf(MetaDataUtil.getLportFromMetadata(metadata).longValue());
105 Optional<IfIndexInterface> interfaceInfoOp = elanUtils.getInterfaceInfoByInterfaceTag(portTag);
106 if (!interfaceInfoOp.isPresent()) {
107 LOG.warn("There is no interface for given portTag {}", portTag);
110 String interfaceName = interfaceInfoOp.get().getInterfaceName();
111 LOG.debug("Received a packet with srcMac: {} ElanTag: {} PortTag: {} InterfaceName: {}", macAddress,
112 elanTag, portTag, interfaceName);
113 ElanTagName elanTagName = elanUtils.getElanInfoByElanTag(elanTag);
114 if (elanTagName == null) {
115 LOG.warn("not able to find elanTagName in elan-tag-name-map for elan tag {}", elanTag);
118 ElanInterfaceMac elanInterfaceMac = elanUtils.getElanInterfaceMacByInterfaceName(interfaceName);
119 if (elanInterfaceMac == null) {
120 LOG.info("There is no ElanInterfaceForwardingEntryDS created for interface :{}", interfaceName);
123 String elanName = elanTagName.getName();
124 PhysAddress physAddress = new PhysAddress(macAddress);
125 MacEntry oldMacEntry = elanUtils.getMacEntryForElanInstance(elanName, physAddress).orNull();
126 boolean isVlanOrFlatProviderIface = interfaceManager.isExternalInterface(interfaceName);
128 Optional<IpAddress> srcIpAddress = elanUtils.getSourceIpAddress(res);
129 MacEntry newMacEntry = null;
130 BigInteger timeStamp = new BigInteger(String.valueOf(System.currentTimeMillis()));
131 if (!srcIpAddress.isPresent()) {
132 newMacEntry = new MacEntryBuilder().setInterface(interfaceName).setMacAddress(physAddress)
133 .withKey(new MacEntryKey(physAddress))
134 .setControllerLearnedForwardingEntryTimestamp(timeStamp)
135 .setIsStaticAddress(false).build();
137 newMacEntry = new MacEntryBuilder().setInterface(interfaceName).setMacAddress(physAddress)
138 .setIpPrefix(srcIpAddress.get()).withKey(new MacEntryKey(physAddress))
139 .setControllerLearnedForwardingEntryTimestamp(timeStamp)
140 .setIsStaticAddress(false).build();
142 if (srcIpAddress.isPresent()) {
143 String prefix = srcIpAddress.get().getIpv4Address().getValue();
144 InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
145 ElanInstance elanInstance = elanInstanceCache.get(elanName).orNull();
146 evpnUtils.advertisePrefix(elanInstance, macAddress, prefix, interfaceName, interfaceInfo.getDpId());
148 enqueueJobForMacSpecificTasks(macAddress, elanTag, interfaceName, elanName, physAddress, oldMacEntry,
149 newMacEntry, isVlanOrFlatProviderIface);
151 ElanInstance elanInstance = elanInstanceCache.get(elanName).orNull();
152 InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
153 if (interfaceInfo == null) {
154 LOG.trace("Interface:{} is not present under Config DS", interfaceName);
157 enqueueJobForDPNSpecificTasks(macAddress, elanTag, interfaceName, physAddress, elanInstance,
158 interfaceInfo, oldMacEntry, newMacEntry, isVlanOrFlatProviderIface);
161 } catch (PacketException e) {
162 LOG.error("Failed to decode packet: {}", notification, e);
167 private void enqueueJobForMacSpecificTasks(final String macAddress, final Uint32 elanTag, String interfaceName,
168 String elanName, PhysAddress physAddress,
169 MacEntry oldMacEntry, MacEntry newMacEntry,
170 final boolean isVlanOrFlatProviderIface) {
171 jobCoordinator.enqueueJob(getElanMacKey(elanTag, macAddress),
172 () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(OPERATIONAL, tx -> {
173 if (oldMacEntry != null && Objects.equals(oldMacEntry.getInterface(), interfaceName)) {
174 // This should never occur because of ovs temporary mac learning
175 elanManagerCounters.unknownSmacPktinForwardingEntriesRemoved();
176 } else if (oldMacEntry != null && !isVlanOrFlatProviderIface) {
177 long macTimeStamp = oldMacEntry.getControllerLearnedForwardingEntryTimestamp().longValue();
178 if (System.currentTimeMillis() > macTimeStamp + 1000) {
179 InstanceIdentifier<MacEntry> macEntryId = ElanUtils
180 .getInterfaceMacEntriesIdentifierOperationalDataPath(oldMacEntry.getInterface(),
182 tx.delete(macEntryId);
184 // New FEs flood their packets on all interfaces. This can lead
185 // to many contradicting packet_ins. Ignore all packets received
186 // within 1s after the first packet_in
187 elanManagerCounters.unknownSmacPktinMacMigrationIgnoredDueToProtection();
189 } else if (oldMacEntry != null) {
190 elanManagerCounters.unknownSmacPktinRemovedForRelearned();
192 // This check is required only to update elan-forwarding-tables when mac is learned
193 // in ports (example: VM interfaces) other than on vlan provider port.
194 if (!isVlanOrFlatProviderIface && oldMacEntry == null) {
195 InstanceIdentifier<MacEntry> elanMacEntryId =
196 ElanUtils.getMacEntryOperationalDataPath(elanName, physAddress);
197 tx.put(elanMacEntryId, newMacEntry, WriteTransaction.CREATE_MISSING_PARENTS);
202 private static String getElanMacKey(Uint32 elanTag, String macAddress) {
203 return "MAC-" + macAddress + " ELAN_TAG-" + elanTag.toString();
206 private static String getElanMacDPNKey(Uint32 elanTag, String macAddress, Uint64 dpnId) {
207 return "MAC-" + macAddress + " ELAN_TAG-" + elanTag.toString() + "DPN_ID-" + dpnId.toString();
210 private void enqueueJobForDPNSpecificTasks(final String macAddress, final Uint32 elanTag, String interfaceName,
211 PhysAddress physAddress, ElanInstance elanInstance,
212 InterfaceInfo interfaceInfo, MacEntry oldMacEntry,
213 MacEntry newMacEntry, boolean isVlanOrFlatProviderIface) {
214 jobCoordinator.enqueueJob(getElanMacDPNKey(elanTag, macAddress, interfaceInfo.getDpId()), () -> {
215 macMigrationFlowsCleanup(interfaceName, elanInstance, oldMacEntry, isVlanOrFlatProviderIface);
216 Uint64 dpId = interfaceManager.getDpnForInterface(interfaceName);
217 elanL2GatewayUtils.scheduleAddDpnMacInExtDevices(elanInstance.getElanInstanceName(), dpId,
218 Collections.singletonList(physAddress));
219 elanManagerCounters.unknownSmacPktinLearned();
220 List<ListenableFuture<Void>> futures = new ArrayList<>();
221 futures.add(txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx -> {
222 futures.add(txRunner.callWithNewWriteOnlyTransactionAndSubmit(OPERATIONAL, operTx -> {
223 elanUtils.setupMacFlows(elanInstance, interfaceInfo, elanInstance.getMacTimeout().toJava(),
224 macAddress, !isVlanOrFlatProviderIface, tx);
225 InstanceIdentifier<MacEntry> macEntryId =
226 ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
227 operTx.put(macEntryId, newMacEntry, WriteTransaction.CREATE_MISSING_PARENTS);
234 private void macMigrationFlowsCleanup(String interfaceName, ElanInstance elanInstance, MacEntry macEntry,
235 boolean isVlanOrFlatProviderIface) {
236 if (macEntry != null && !Objects.equals(macEntry.getInterface(), interfaceName)
237 && !isVlanOrFlatProviderIface) {
238 tryAndRemoveInvalidMacEntry(elanInstance.getElanInstanceName(), macEntry);
239 elanManagerCounters.unknownSmacPktinFlowsRemovedForRelearned();
244 * Though this method is a little costlier because it uses try-catch
245 * construct, it is used only in rare scenarios like MAC movement or invalid
246 * Static MAC having been added on a wrong ELAN.
248 private void tryAndRemoveInvalidMacEntry(String elanName, MacEntry macEntry) {
249 ElanInstance elanInfo = elanInstanceCache.get(elanName).orNull();
250 if (elanInfo == null) {
251 LOG.warn("MAC {} is been added (either statically or dynamically) for an invalid Elan {}. "
252 + "Manual cleanup may be necessary", macEntry.getMacAddress(), elanName);
256 InterfaceInfo oldInterfaceLport = interfaceManager.getInterfaceInfo(macEntry.getInterface());
257 if (oldInterfaceLport == null) {
258 LOG.warn("MAC {} is been added (either statically or dynamically) on an invalid Logical Port {}. "
259 + "Manual cleanup may be necessary",
260 macEntry.getMacAddress(), macEntry.getInterface());
263 LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
264 tx -> elanUtils.deleteMacFlows(elanInfo, oldInterfaceLport, macEntry, tx)), LOG,
265 "Error deleting invalid MAC entry");
266 elanL2GatewayUtils.removeMacsFromElanExternalDevices(elanInfo,
267 Collections.singletonList(macEntry.getMacAddress()));