fibmanager/impl/src/main/java/org/opendaylight/netvirt/fibmanager/RouterInterfaceVrfEntryHandler.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 package org.opendaylight.netvirt.fibmanager;
   9
  10 import static org.opendaylight.genius.mdsalutil.NWUtil.isIpv4Address;
  11
  12 import com.google.common.base.Preconditions;
  13 import java.math.BigInteger;
  14 import java.util.Collection;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.genius.datastoreutils.listeners.DataTreeEventCallbackRegistrar;
  19 import org.opendaylight.genius.mdsalutil.FlowEntity;
  20 import org.opendaylight.genius.mdsalutil.NwConstants;
  21 import org.opendaylight.genius.mdsalutil.UpgradeState;
  22 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  23 import org.opendaylight.netvirt.fibmanager.api.FibHelper;
  24 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.RouterInterface;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.VpnToDpnList;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 @Singleton
  35 public class RouterInterfaceVrfEntryHandler extends BaseVrfEntryHandler implements IVrfEntryHandler {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(RouterInterfaceVrfEntryHandler.class);
  38     private final IMdsalApiManager mdsalManager;
  39     private final IPv6Handler ipv6Handler;
  40
  41     @Inject
  42     public RouterInterfaceVrfEntryHandler(final DataBroker dataBroker, final NexthopManager nexthopManager,
  43             final IMdsalApiManager mdsalManager, final IPv6Handler ipv6Handler, final FibUtil fibUtil,
  44             final UpgradeState upgradeState, final DataTreeEventCallbackRegistrar eventCallbacks) {
  45         super(dataBroker, nexthopManager, mdsalManager, fibUtil, upgradeState, eventCallbacks);
  46         this.mdsalManager = mdsalManager;
  47         this.ipv6Handler = ipv6Handler;
  48     }
  49
  50     @Override
  51     public void close() {
  52         LOG.info("{} close", getClass().getSimpleName());
  53     }
  54
  55     @Override
  56     public void createFlows(InstanceIdentifier<VrfEntry> identifier, VrfEntry vrfEntry, String rd) {
  57         RouterInterface routerInt = vrfEntry.augmentation(RouterInterface.class);
  58         installRouterFibEntries(vrfEntry, rd, NwConstants.ADD_FLOW, routerInt);
  59     }
  60
  61     @Override
  62     public void updateFlows(InstanceIdentifier<VrfEntry> identifier, VrfEntry original, VrfEntry update, String rd) {
  63         // Not used
  64     }
  65
  66     @Override
  67     public void removeFlows(InstanceIdentifier<VrfEntry> identifier, VrfEntry vrfEntry, String rd) {
  68         RouterInterface routerInt = vrfEntry.augmentation(RouterInterface.class);
  69         installRouterFibEntries(vrfEntry, rd, NwConstants.DEL_FLOW, routerInt);
  70     }
  71
  72     private Boolean installRouterFibEntries(VrfEntry vrfEntry, String rd, int addOrRemove,
  73             RouterInterface routerInterface) {
  74         final VpnInstanceOpDataEntry vpnInstance = getFibUtil().getVpnInstance(rd);
  75         Preconditions.checkNotNull(vpnInstance, "Vpn Instance not available " + rd);
  76         Preconditions.checkNotNull(vpnInstance.getVpnId(),
  77                 "Vpn Instance with rd " + vpnInstance.getVrfId() + " has null vpnId!");
  78         synchronized (vpnInstance.getVpnInstanceName().intern()) {
  79             final Collection<VpnToDpnList> vpnToDpnList;
  80             if (vrfEntry.getParentVpnRd() != null
  81                     && FibHelper.isControllerManagedNonSelfImportedRoute(RouteOrigin.value(vrfEntry.getOrigin()))) {
  82                 VpnInstanceOpDataEntry parentVpnInstance =
  83                         getFibUtil().getVpnInstance(vrfEntry.getParentVpnRd());
  84                 vpnToDpnList = parentVpnInstance != null ? parentVpnInstance.getVpnToDpnList()
  85                         : vpnInstance.getVpnToDpnList();
  86             } else {
  87                 vpnToDpnList = vpnInstance.getVpnToDpnList();
  88             }
  89             final Long vpnId = vpnInstance.getVpnId();
  90
  91             if (vpnToDpnList != null) {
  92                 String routerId = routerInterface.getUuid();
  93                 String macAddress = routerInterface.getMacAddress();
  94                 String ipValue = routerInterface.getIpAddress();
  95                 LOG.trace("createFibEntries - Router augmented vrfentry found for for router uuid:{}, ip:{}, mac:{}",
  96                         routerId, ipValue, macAddress);
  97                 for (VpnToDpnList vpnDpn : vpnToDpnList) {
  98                     if (vpnDpn.getDpnState() == VpnToDpnList.DpnState.Active) {
  99                         installRouterFibEntry(vrfEntry, vpnDpn.getDpnId(), vpnId, ipValue, new MacAddress(macAddress),
 100                                 addOrRemove);
 101                     }
 102                 }
 103             }
 104         }
 105         return true;
 106     }
 107
 108     public void installRouterFibEntry(final VrfEntry vrfEntry, BigInteger dpnId, long vpnId, String routerInternalIp,
 109             MacAddress routerMac, int addOrRemove) {
 110
 111         // First install L3_GW_MAC_TABLE flows as it's common for both IPv4 and IPv6
 112         // address families
 113         FlowEntity l3GwMacFlowEntity = buildL3vpnGatewayFlow(dpnId, routerMac.getValue(), vpnId);
 114         if (addOrRemove == NwConstants.ADD_FLOW) {
 115             mdsalManager.syncInstallFlow(l3GwMacFlowEntity, 1);
 116         } else {
 117             mdsalManager.syncRemoveFlow(l3GwMacFlowEntity, 1);
 118         }
 119
 120         java.util.Optional<Long> optionalLabel = FibUtil.getLabelFromRoutePaths(vrfEntry);
 121         if (!optionalLabel.isPresent()) {
 122             LOG.warn("Routes paths not present. Exiting installRouterFibEntry");
 123             return;
 124         }
 125
 126         String[] subSplit = routerInternalIp.split("/");
 127         String addRemoveStr = addOrRemove == NwConstants.ADD_FLOW ? "ADD_FLOW" : "DELETE_FLOW";
 128         LOG.trace("{}: Building Echo Flow entity for dpid:{}, router_ip:{}, vpnId:{}, subSplit:{} ", addRemoveStr,
 129                 dpnId, routerInternalIp, vpnId, subSplit[0]);
 130
 131         if (isIpv4Address(subSplit[0])) {
 132             installPingResponderFlowEntry(dpnId, vpnId, subSplit[0], routerMac, optionalLabel.get(), addOrRemove);
 133         } else {
 134             ipv6Handler.installPing6ResponderFlowEntry(dpnId, vpnId, routerInternalIp, routerMac, optionalLabel.get(),
 135                     addOrRemove);
 136         }
 137         return;
 138     }
 139 }