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