elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/evpn/utils/ElanEvpnFlowUtils.java

   1 /*
   2  * Copyright © 2017 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
   9 package org.opendaylight.netvirt.elan.evpn.utils;
  10
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import java.math.BigInteger;
  13 import java.util.ArrayList;
  14 import java.util.Collections;
  15 import java.util.HashMap;
  16 import java.util.List;
  17 import java.util.Map;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.genius.infra.Datastore;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  22 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  23 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  24 import org.opendaylight.genius.mdsalutil.MatchInfo;
  25 import org.opendaylight.genius.mdsalutil.NwConstants;
  26 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  27 import org.opendaylight.infrautils.utils.concurrent.NamedSimpleReentrantLock.Acquired;
  28 import org.opendaylight.mdsal.binding.api.DataBroker;
  29 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  30 import org.opendaylight.netvirt.elan.utils.ElanEtreeUtils;
  31 import org.opendaylight.netvirt.elan.utils.ElanItmUtils;
  32 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.etree.rev160614.EtreeLeafTagName;
  40 import org.opendaylight.yangtools.yang.common.Uint64;
  41
  42
  43 @Singleton
  44 public class ElanEvpnFlowUtils {
  45     private final IMdsalApiManager mdsalManager;
  46     private final ElanItmUtils elanItmUtils;
  47     private final ElanEtreeUtils elanEtreeUtils;
  48     private final ManagedNewTransactionRunner txRunner;
  49
  50     @Inject
  51     public ElanEvpnFlowUtils(final IMdsalApiManager mdsalManager, final ElanItmUtils elanItmUtils,
  52             final ElanEtreeUtils elanEtreeUtils, final DataBroker dataBroker) {
  53         this.mdsalManager = mdsalManager;
  54         this.elanItmUtils = elanItmUtils;
  55         this.elanEtreeUtils = elanEtreeUtils;
  56         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  57     }
  58
  59     public Flow evpnBuildDmacFlowForExternalRemoteMac(EvpnDmacFlow evpnDmacFlow) {
  60         List<MatchInfo> mkMatches = ElanUtils.buildMatchesForElanTagShFlagAndDstMac(evpnDmacFlow.getElanTag(), false,
  61                 evpnDmacFlow.getDstMacAddress());
  62         Map<InstructionKey, Instruction> mkInstructionsMap = new HashMap<>();
  63         List<Action> actions = elanItmUtils.getExternalTunnelItmEgressAction(evpnDmacFlow.getDpId(),
  64                 evpnDmacFlow.getNexthopIP(), evpnDmacFlow.getVni());
  65         mkInstructionsMap.put(new InstructionKey(0), MDSALUtil.buildApplyActionsInstruction(actions));
  66         Flow flow = MDSALUtil.buildFlowNew(NwConstants.ELAN_DMAC_TABLE,
  67                 ElanUtils.getKnownDynamicmacFlowRef(NwConstants.ELAN_DMAC_TABLE, evpnDmacFlow.getDpId(),
  68                         evpnDmacFlow.getNexthopIP(), evpnDmacFlow.getDstMacAddress(), evpnDmacFlow.getElanTag(), false),
  69                 20, evpnDmacFlow.getElanName(), 0, 0,
  70                 Uint64.valueOf(ElanConstants.COOKIE_ELAN_KNOWN_DMAC.toJava()
  71                     .add(BigInteger.valueOf(evpnDmacFlow.getElanTag()))),
  72                 mkMatches, mkInstructionsMap);
  73
  74         return flow;
  75     }
  76
  77     public List<ListenableFuture<Void>> evpnDeleteDmacFlowsToExternalMac(EvpnDmacFlow evpnDmacFlow) {
  78         List<ListenableFuture<Void>> futures = new ArrayList<>();
  79         try (Acquired lock = ElanUtils.lockElanMacDPN(evpnDmacFlow.getElanTag(), evpnDmacFlow.getDstMacAddress(),
  80                 evpnDmacFlow.getDpId())) {
  81             futures.addAll(
  82                     evpnRemoveFlowThatSendsThePacketOnAnExternalTunnel(evpnDmacFlow.getElanTag(), evpnDmacFlow.dpId,
  83                             evpnDmacFlow.getNexthopIP(), evpnDmacFlow.getDstMacAddress()));
  84             futures.addAll(evpnDeleteEtreeDmacFlowsToExternalMac(evpnDmacFlow.getElanTag(), evpnDmacFlow.getDpId(),
  85                     evpnDmacFlow.getNexthopIP(), evpnDmacFlow.getDstMacAddress()));
  86         }
  87         return futures;
  88     }
  89
  90     private List<ListenableFuture<Void>> evpnDeleteEtreeDmacFlowsToExternalMac(long elanTag, Uint64 dpId,
  91             String nexthopIp, String macToRemove) {
  92         List<ListenableFuture<Void>> futures = new ArrayList<>();
  93         EtreeLeafTagName etreeLeafTag = elanEtreeUtils.getEtreeLeafTagByElanTag(elanTag);
  94         if (etreeLeafTag != null) {
  95             futures.addAll(
  96                     evpnRemoveFlowThatSendsThePacketOnAnExternalTunnel(
  97                             etreeLeafTag.getEtreeLeafTag().getValue().toJava(), dpId,
  98                             nexthopIp, macToRemove));
  99             futures.addAll(
 100                     evpnRemoveTheDropFlow(etreeLeafTag.getEtreeLeafTag().getValue().toJava(),
 101                             dpId, nexthopIp, macToRemove));
 102         }
 103         return futures;
 104     }
 105
 106     static String evpnGetKnownDynamicmacFlowRef(short elanDmacTable, Uint64 dpId, String nexthopIp,
 107                                                 String dstMacAddress, long elanTag, boolean shFlag) {
 108         return String.valueOf(elanDmacTable) + elanTag + dpId + nexthopIp + dstMacAddress + shFlag;
 109     }
 110
 111     private List<ListenableFuture<Void>> evpnRemoveTheDropFlow(long elanTag, Uint64 dpId, String nexthopIp,
 112             String macToRemove) {
 113         String flowId = ElanEvpnFlowUtils.evpnGetKnownDynamicmacFlowRef(NwConstants.ELAN_DMAC_TABLE, dpId, nexthopIp,
 114                 macToRemove, elanTag, true);
 115         Flow flowToRemove = new FlowBuilder().setId(new FlowId(flowId)).setTableId(NwConstants.ELAN_DMAC_TABLE).build();
 116         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(Datastore.CONFIGURATION,
 117             tx -> mdsalManager.removeFlow(tx, dpId, flowToRemove)));
 118     }
 119
 120     private List<ListenableFuture<Void>> evpnRemoveFlowThatSendsThePacketOnAnExternalTunnel(long elanTag,
 121             Uint64 dpId, String nexthopIp, String macToRemove) {
 122         String flowId = ElanEvpnFlowUtils.evpnGetKnownDynamicmacFlowRef(NwConstants.ELAN_DMAC_TABLE, dpId, nexthopIp,
 123                 macToRemove, elanTag, false);
 124         Flow flowToRemove = new FlowBuilder().setId(new FlowId(flowId)).setTableId(NwConstants.ELAN_DMAC_TABLE).build();
 125         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(Datastore.CONFIGURATION,
 126             tx -> mdsalManager.removeFlow(tx, dpId, flowToRemove)));
 127     }
 128
 129     public static class EvpnDmacFlowBuilder {
 130         private Uint64 dpId;
 131         private String nexthopIP;
 132         private long elanTag;
 133         private Long vni;
 134         private String dstMacAddress;
 135         private String elanName;
 136
 137         public EvpnDmacFlowBuilder() {
 138         }
 139
 140         public EvpnDmacFlowBuilder setDpId(Uint64 dpId) {
 141             this.dpId = dpId;
 142             return this;
 143         }
 144
 145         public EvpnDmacFlowBuilder setNexthopIP(String nexthopIP) {
 146             this.nexthopIP = nexthopIP;
 147             return this;
 148         }
 149
 150         public EvpnDmacFlowBuilder setElanTag(long elanTag) {
 151             this.elanTag = elanTag;
 152             return this;
 153         }
 154
 155         public EvpnDmacFlowBuilder setVni(Long vni) {
 156             this.vni = vni;
 157             return this;
 158         }
 159
 160         public EvpnDmacFlowBuilder setDstMacAddress(String dstMacAddress) {
 161             this.dstMacAddress = dstMacAddress;
 162             return this;
 163         }
 164
 165         public EvpnDmacFlowBuilder setElanName(String elanName) {
 166             this.elanName = elanName;
 167             return this;
 168         }
 169
 170         public EvpnDmacFlow build() {
 171             return new EvpnDmacFlow(dpId, nexthopIP, elanTag, vni, dstMacAddress, elanName);
 172         }
 173     }
 174
 175     static class EvpnDmacFlow {
 176         private final Uint64 dpId;
 177         private final String nexthopIP;
 178         private final long elanTag;
 179         private final Long vni;
 180         private final String dstMacAddress;
 181         private final String elanName;
 182
 183         EvpnDmacFlow(Uint64 dpId, String nexthopIP, long elanTag, Long vni, String dstMacAddress,
 184                             String elanName) {
 185             this.dpId = dpId;
 186             this.nexthopIP = nexthopIP;
 187             this.elanTag = elanTag;
 188             this.vni = vni;
 189             this.dstMacAddress = dstMacAddress;
 190             this.elanName = elanName;
 191         }
 192
 193         public Uint64 getDpId() {
 194             return dpId;
 195         }
 196
 197         public String getNexthopIP() {
 198             return nexthopIP;
 199         }
 200
 201         public long getElanTag() {
 202             return elanTag;
 203         }
 204
 205         public Long getVni() {
 206             return vni;
 207         }
 208
 209         public String getDstMacAddress() {
 210             return dstMacAddress;
 211         }
 212
 213         public String getElanName() {
 214             return elanName;
 215         }
 216     }
 217 }