alivenessmonitor/alivenessmonitor-impl-protocols/src/main/java/org/opendaylight/genius/alivenessmonitor/protocols/internal/AlivenessProtocolHandlerARP.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.genius.alivenessmonitor.protocols.internal;
   9
  10 import static java.util.Objects.requireNonNull;
  11 import static org.opendaylight.genius.alivenessmonitor.protocols.AlivenessMonitorAndProtocolsConstants.SEPERATOR;
  12
  13 import com.google.common.base.Strings;
  14 import com.google.common.util.concurrent.FutureCallback;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import com.google.common.util.concurrent.MoreExecutors;
  18 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  19 import java.util.Collections;
  20 import java.util.List;
  21 import java.util.Optional;
  22 import java.util.concurrent.ExecutionException;
  23 import java.util.concurrent.Future;
  24 import javax.inject.Inject;
  25 import javax.inject.Singleton;
  26 import org.apache.aries.blueprint.annotation.service.Reference;
  27 import org.opendaylight.genius.alivenessmonitor.protocols.AlivenessProtocolHandlerRegistry;
  28 import org.opendaylight.genius.alivenessmonitor.utils.AlivenessMonitorUtil;
  29 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  30 import org.opendaylight.genius.mdsalutil.NWUtil;
  31 import org.opendaylight.genius.mdsalutil.packet.ARP;
  32 import org.opendaylight.mdsal.binding.api.DataBroker;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.MonitorProtocolType;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.endpoint.EndpointType;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.endpoint.endpoint.type.Interface;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.monitor.configs.MonitoringInfo;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.OdlArputilService;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.SendArpRequestInput;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.SendArpRequestInputBuilder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.SendArpRequestOutput;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.interfaces.InterfaceAddress;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.arputil.rev160406.interfaces.InterfaceAddressBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexInput;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexInputBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexOutput;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived;
  50 import org.opendaylight.yangtools.yang.common.RpcResult;
  51 import org.opendaylight.yangtools.yang.common.Uint64;
  52 import org.slf4j.Logger;
  53 import org.slf4j.LoggerFactory;
  54
  55 @Singleton
  56 public class AlivenessProtocolHandlerARP extends AbstractAlivenessProtocolHandler<ARP> {
  57
  58     private static final Logger LOG = LoggerFactory.getLogger(AlivenessProtocolHandlerARP.class);
  59
  60     private final OdlArputilService arpService;
  61     private final OdlInterfaceRpcService interfaceManager;
  62
  63     @Inject
  64     public AlivenessProtocolHandlerARP(
  65             @Reference final DataBroker dataBroker,
  66             @Reference final AlivenessProtocolHandlerRegistry alivenessProtocolHandlerRegistry,
  67             final OdlInterfaceRpcService interfaceManager,
  68             final OdlArputilService arpService) {
  69         super(dataBroker, alivenessProtocolHandlerRegistry, MonitorProtocolType.Arp);
  70         this.interfaceManager = interfaceManager;
  71         this.arpService = arpService;
  72     }
  73
  74     @Override
  75     public Class<ARP> getPacketClass() {
  76         return ARP.class;
  77     }
  78
  79     @Override
  80     @SuppressFBWarnings("NP_NONNULL_RETURN_VIOLATION")
  81     public String handlePacketIn(ARP packet, PacketReceived packetReceived) {
  82         short tableId = packetReceived.getTableId().getValue().toJava();
  83         int arpType = packet.getOpCode();
  84
  85         if (LOG.isTraceEnabled()) {
  86             LOG.trace("packet: {}, tableId {}, arpType {}", packetReceived, tableId, arpType);
  87         }
  88
  89         if (arpType == ARP.REPLY) {
  90             if (LOG.isTraceEnabled()) {
  91                 LOG.trace("packet: {}", packetReceived);
  92             }
  93
  94             Uint64 metadata = packetReceived.getMatch().getMetadata().getMetadata();
  95             int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
  96             String interfaceName = null;
  97
  98             try {
  99                 GetInterfaceFromIfIndexInput input = new GetInterfaceFromIfIndexInputBuilder().setIfIndex(portTag)
 100                         .build();
 101                 Future<RpcResult<GetInterfaceFromIfIndexOutput>> output = interfaceManager
 102                         .getInterfaceFromIfIndex(input);
 103                 RpcResult<GetInterfaceFromIfIndexOutput> result = output.get();
 104                 if (result.isSuccessful()) {
 105                     GetInterfaceFromIfIndexOutput ifIndexOutput = result.getResult();
 106                     interfaceName = ifIndexOutput.getInterfaceName();
 107                 } else {
 108                     LOG.warn("RPC call to get interface name for if index {} failed with errors {}", portTag,
 109                             result.getErrors());
 110                     return null;
 111                 }
 112             } catch (InterruptedException | ExecutionException e) {
 113                 LOG.warn("Error retrieving interface Name for tag {}", portTag, e);
 114             }
 115             if (!Strings.isNullOrEmpty(interfaceName)) {
 116                 String sourceIp = NWUtil.toStringIpAddress(packet.getSenderProtocolAddress());
 117                 String targetIp = NWUtil.toStringIpAddress(packet.getTargetProtocolAddress());
 118                 return getMonitoringKey(interfaceName, targetIp, sourceIp);
 119             } else {
 120                 LOG.debug("No interface associated with tag {} to interpret the received ARP Reply", portTag);
 121             }
 122         }
 123
 124         return null;
 125     }
 126
 127     @Override
 128     public void startMonitoringTask(MonitoringInfo monitorInfo) {
 129         if (arpService == null) {
 130             LOG.debug("ARP Service not available to send the packet");
 131             return;
 132         }
 133         EndpointType source = monitorInfo.getSource().getEndpointType();
 134         final String sourceInterface = requireNonNull(AlivenessMonitorUtil.getInterfaceName(source),
 135                 "Source interface is required to send ARP Packet for monitoring");
 136
 137         final String srcIp = requireNonNull(AlivenessMonitorUtil.getIpAddress(source),
 138                 "Source Ip address is required to send ARP Packet for monitoring");
 139         final Optional<PhysAddress> srcMacAddressOptional = getMacAddress(source);
 140         if (srcMacAddressOptional.isPresent()) {
 141             PhysAddress srcMacAddress = srcMacAddressOptional.get();
 142             EndpointType target = monitorInfo.getDestination().getEndpointType();
 143             final String targetIp = requireNonNull(AlivenessMonitorUtil.getIpAddress(target),
 144                     "Target Ip address is required to send ARP Packet for monitoring");
 145             if (LOG.isTraceEnabled()) {
 146                 LOG.trace("sendArpRequest interface {}, senderIPAddress {}, targetAddress {}", sourceInterface, srcIp,
 147                         targetIp);
 148             }
 149             InterfaceAddressBuilder interfaceAddressBuilder = new InterfaceAddressBuilder()
 150                     .setInterface(sourceInterface).setIpAddress(IpAddressBuilder.getDefaultInstance(srcIp));
 151             if (srcMacAddress != null) {
 152                 interfaceAddressBuilder.setMacaddress(srcMacAddress);
 153             }
 154             List<InterfaceAddress> addresses = Collections.singletonList(interfaceAddressBuilder.build());
 155             SendArpRequestInput input = new SendArpRequestInputBuilder().setInterfaceAddress(addresses)
 156                     .setIpaddress(IpAddressBuilder.getDefaultInstance(targetIp)).build();
 157             ListenableFuture<RpcResult<SendArpRequestOutput>> future = arpService.sendArpRequest(input);
 158             final String msgFormat = String.format("Send ARP Request on interface %s to destination %s",
 159                     sourceInterface, targetIp);
 160             Futures.addCallback(future, new FutureCallback<RpcResult<SendArpRequestOutput>>() {
 161                 @Override
 162                 public void onFailure(Throwable error) {
 163                     LOG.error("Error - {}", msgFormat, error);
 164                 }
 165
 166                 @Override
 167                 public void onSuccess(RpcResult<SendArpRequestOutput> result) {
 168                     if (result != null && !result.isSuccessful()) {
 169                         LOG.warn("Rpc call to {} failed {}", msgFormat,
 170                                 AlivenessMonitorUtil.getErrorText(result.getErrors()));
 171                     } else {
 172                         LOG.debug("Successful RPC Result - {}", msgFormat);
 173                     }
 174                 }
 175             }, MoreExecutors.directExecutor());
 176         }
 177     }
 178
 179     @Override
 180     public String getUniqueMonitoringKey(MonitoringInfo monitorInfo) {
 181         String interfaceName = AlivenessMonitorUtil.getInterfaceName(monitorInfo.getSource().getEndpointType());
 182         String sourceIp = AlivenessMonitorUtil.getIpAddress(monitorInfo.getSource().getEndpointType());
 183         String targetIp = AlivenessMonitorUtil.getIpAddress(monitorInfo.getDestination().getEndpointType());
 184         return getMonitoringKey(interfaceName, sourceIp, targetIp);
 185     }
 186
 187     private String getMonitoringKey(String interfaceName, String sourceIp, String targetIp) {
 188         return interfaceName + SEPERATOR + sourceIp + SEPERATOR + targetIp + SEPERATOR + MonitorProtocolType.Arp;
 189     }
 190
 191     private Optional<PhysAddress> getMacAddress(EndpointType source) {
 192         Optional<PhysAddress> result = Optional.empty();
 193         if (source instanceof Interface) {
 194             result = Optional.of(((Interface) source).getMacAddress());
 195         }
 196         return result;
 197     }
 198 }