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 com.google.common.base.Preconditions.checkNotNull;
  11 import static org.opendaylight.genius.mdsalutil.NWUtil.isIpv4Address;
  12
  13 import java.util.Map;
  14 import java.util.concurrent.locks.ReentrantLock;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.genius.datastoreutils.listeners.DataTreeEventCallbackRegistrar;
  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.genius.utils.JvmGlobalLocks;
  22 import org.opendaylight.mdsal.binding.api.DataBroker;
  23 import org.opendaylight.netvirt.fibmanager.api.FibHelper;
  24 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  25 import org.opendaylight.serviceutils.upgrade.UpgradeState;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.RouterInterface;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.VpnToDpnList;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.VpnToDpnListKey;
  32 import org.opendaylight.yangtools.yang.common.Uint32;
  33 import org.opendaylight.yangtools.yang.common.Uint64;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 @Singleton
  38 public class RouterInterfaceVrfEntryHandler extends BaseVrfEntryHandler {
  39     private static final Logger LOG = LoggerFactory.getLogger(RouterInterfaceVrfEntryHandler.class);
  40
  41     private final IMdsalApiManager mdsalManager;
  42     private final IPv6Handler ipv6Handler;
  43
  44     @Inject
  45     public RouterInterfaceVrfEntryHandler(final DataBroker dataBroker, final NexthopManager nexthopManager,
  46             final IMdsalApiManager mdsalManager, final IPv6Handler ipv6Handler, final FibUtil fibUtil,
  47             final UpgradeState upgradeState, final DataTreeEventCallbackRegistrar eventCallbacks) {
  48         super(dataBroker, nexthopManager, mdsalManager, fibUtil, upgradeState, eventCallbacks);
  49         this.mdsalManager = mdsalManager;
  50         this.ipv6Handler = ipv6Handler;
  51     }
  52
  53     @Override
  54     public void close() {
  55         LOG.info("{} close", getClass().getSimpleName());
  56     }
  57
  58     void createFlows(VrfEntry vrfEntry, String rd) {
  59         RouterInterface routerInt = vrfEntry.augmentation(RouterInterface.class);
  60         installRouterFibEntries(vrfEntry, rd, NwConstants.ADD_FLOW, routerInt);
  61     }
  62
  63     void removeFlows(VrfEntry vrfEntry, String rd) {
  64         RouterInterface routerInt = vrfEntry.augmentation(RouterInterface.class);
  65         installRouterFibEntries(vrfEntry, rd, NwConstants.DEL_FLOW, routerInt);
  66     }
  67
  68     private boolean installRouterFibEntries(VrfEntry vrfEntry, String rd, int addOrRemove,
  69             RouterInterface routerInterface) {
  70         final VpnInstanceOpDataEntry vpnInstance = getFibUtil().getVpnInstance(rd);
  71         checkNotNull(vpnInstance, "Vpn Instance not available %s", rd);
  72         checkNotNull(vpnInstance.getVpnId(), "Vpn Instance with rd %s has null vpnId!", vpnInstance.getVrfId());
  73
  74         // FIXME: separate this out somehow?
  75         final ReentrantLock lock = JvmGlobalLocks.getLockForString(vpnInstance.getVpnInstanceName());
  76         lock.lock();
  77         try {
  78             final Map<VpnToDpnListKey, VpnToDpnList> keyVpnToDpnListMap;
  79             if (vrfEntry.getParentVpnRd() != null
  80                     && FibHelper.isControllerManagedNonSelfImportedRoute(RouteOrigin.value(vrfEntry.getOrigin()))) {
  81                 VpnInstanceOpDataEntry parentVpnInstance =
  82                         getFibUtil().getVpnInstance(vrfEntry.getParentVpnRd());
  83                 keyVpnToDpnListMap = parentVpnInstance != null ? parentVpnInstance.nonnullVpnToDpnList()
  84                         : vpnInstance.nonnullVpnToDpnList();
  85             } else {
  86                 keyVpnToDpnListMap = vpnInstance.nonnullVpnToDpnList();
  87             }
  88             final Uint32 vpnId = vpnInstance.getVpnId();
  89
  90             if (keyVpnToDpnListMap != null) {
  91                 String routerId = routerInterface.getUuid();
  92                 String macAddress = routerInterface.getMacAddress();
  93                 String ipValue = routerInterface.getIpAddress();
  94                 LOG.trace("createFibEntries - Router augmented vrfentry found for for router uuid:{}, ip:{}, mac:{}",
  95                         routerId, ipValue, macAddress);
  96                 for (VpnToDpnList vpnDpn : keyVpnToDpnListMap.values()) {
  97                     if (vpnDpn.getDpnState() == VpnToDpnList.DpnState.Active) {
  98                         installRouterFibEntry(vrfEntry, vpnDpn.getDpnId(), vpnId, ipValue,
  99                                 new MacAddress(macAddress), addOrRemove);
 100                     }
 101                 }
 102             }
 103         } finally {
 104             lock.unlock();
 105         }
 106         return true;
 107     }
 108
 109     public void installRouterFibEntry(final VrfEntry vrfEntry, Uint64 dpnId, Uint32 vpnId, String routerInternalIp,
 110             MacAddress routerMac, int addOrRemove) {
 111
 112         // First install L3_GW_MAC_TABLE flows as it's common for both IPv4 and IPv6
 113         // address families
 114         FlowEntity l3GwMacFlowEntity = buildL3vpnGatewayFlow(dpnId, routerMac.getValue(), vpnId);
 115         if (addOrRemove == NwConstants.ADD_FLOW) {
 116             mdsalManager.syncInstallFlow(l3GwMacFlowEntity, 1);
 117         } else {
 118             mdsalManager.syncRemoveFlow(l3GwMacFlowEntity, 1);
 119         }
 120
 121         java.util.Optional<Uint32> optionalLabel = FibUtil.getLabelFromRoutePaths(vrfEntry);
 122         if (!optionalLabel.isPresent()) {
 123             LOG.warn("Routes paths not present. Exiting installRouterFibEntry");
 124             return;
 125         }
 126
 127         String[] subSplit = routerInternalIp.split("/");
 128         String addRemoveStr = addOrRemove == NwConstants.ADD_FLOW ? "ADD_FLOW" : "DELETE_FLOW";
 129         LOG.trace("{}: Building Echo Flow entity for dpid:{}, router_ip:{}, vpnId:{}, subSplit:{} ", addRemoveStr,
 130                 dpnId, routerInternalIp, vpnId, subSplit[0]);
 131
 132         if (isIpv4Address(subSplit[0])) {
 133             installPingResponderFlowEntry(dpnId, vpnId, subSplit[0], routerMac, optionalLabel.get(), addOrRemove);
 134         } else {
 135             ipv6Handler.installPing6ResponderFlowEntry(dpnId, vpnId, routerInternalIp, routerMac, optionalLabel.get(),
 136                     addOrRemove);
 137         }
 138         return;
 139     }
 140 }