bgpmanager/impl/src/main/java/org/opendaylight/netvirt/bgpmanager/BgpConfigurationManager.java

   1 /*
   2  * Copyright © 2015, 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.bgpmanager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.ThreadFactoryBuilder;
  12 import io.netty.util.concurrent.GlobalEventExecutor;
  13 import java.io.IOException;
  14 import java.lang.reflect.Constructor;
  15 import java.lang.reflect.InvocationTargetException;
  16 import java.net.InetAddress;
  17 import java.net.NetworkInterface;
  18 import java.net.SocketException;
  19 import java.util.ArrayList;
  20 import java.util.Collection;
  21 import java.util.Collections;
  22 import java.util.Enumeration;
  23 import java.util.HashMap;
  24 import java.util.Iterator;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Objects;
  28 import java.util.Timer;
  29 import java.util.concurrent.Callable;
  30 import java.util.concurrent.ConcurrentHashMap;
  31 import java.util.concurrent.CountDownLatch;
  32 import java.util.concurrent.ExecutionException;
  33 import java.util.concurrent.Executors;
  34 import java.util.concurrent.Future;
  35 import java.util.concurrent.ScheduledExecutorService;
  36 import java.util.concurrent.ScheduledFuture;
  37 import java.util.concurrent.TimeUnit;
  38 import java.util.concurrent.TimeoutException;
  39 import java.util.concurrent.atomic.AtomicInteger;
  40 import java.util.concurrent.atomic.AtomicReference;
  41 import javax.annotation.Nullable;
  42 import javax.annotation.PreDestroy;
  43 import javax.inject.Inject;
  44 import javax.inject.Singleton;
  45 import org.apache.thrift.TApplicationException;
  46 import org.apache.thrift.TException;
  47 import org.apache.thrift.transport.TTransport;
  48 import org.opendaylight.controller.config.api.osgi.WaitingServiceTracker;
  49 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  50 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  51 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  52 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  53 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  54 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  55 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  56 import org.opendaylight.genius.mdsalutil.NwConstants;
  57 import org.opendaylight.genius.utils.clustering.EntityOwnershipUtils;
  58 import org.opendaylight.infrautils.metrics.MetricProvider;
  59 import org.opendaylight.mdsal.eos.binding.api.Entity;
  60 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipCandidateRegistration;
  61 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListenerRegistration;
  62 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipService;
  63 import org.opendaylight.mdsal.eos.common.api.CandidateAlreadyRegisteredException;
  64 import org.opendaylight.mdsal.eos.common.api.EntityOwnershipChangeState;
  65 import org.opendaylight.netvirt.bgpmanager.api.IBgpManager;
  66 import org.opendaylight.netvirt.bgpmanager.commands.ClearBgpCli;
  67 import org.opendaylight.netvirt.bgpmanager.oam.BgpAlarms;
  68 import org.opendaylight.netvirt.bgpmanager.oam.BgpConstants;
  69 import org.opendaylight.netvirt.bgpmanager.oam.BgpCounters;
  70 import org.opendaylight.netvirt.bgpmanager.thrift.client.BgpRouter;
  71 import org.opendaylight.netvirt.bgpmanager.thrift.client.BgpRouterException;
  72 import org.opendaylight.netvirt.bgpmanager.thrift.client.BgpSyncHandle;
  73 import org.opendaylight.netvirt.bgpmanager.thrift.gen.Routes;
  74 import org.opendaylight.netvirt.bgpmanager.thrift.gen.Update;
  75 import org.opendaylight.netvirt.bgpmanager.thrift.gen.af_afi;
  76 import org.opendaylight.netvirt.bgpmanager.thrift.gen.af_safi;
  77 import org.opendaylight.netvirt.bgpmanager.thrift.gen.protocol_type;
  78 import org.opendaylight.netvirt.bgpmanager.thrift.gen.qbgpConstants;
  79 import org.opendaylight.netvirt.bgpmanager.thrift.server.BgpThriftService;
  80 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  81 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.IVpnLinkService;
  82 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.AddressFamily;
  83 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp;
  84 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.BgpControlPlaneType;
  85 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.EncapType;
  86 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.TcpMd5SignaturePasswordType;
  87 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.AsId;
  88 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.AsIdBuilder;
  89 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.ConfigServer;
  90 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.ConfigServerBuilder;
  91 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.GracefulRestart;
  92 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.GracefulRestartBuilder;
  93 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.Logging;
  94 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.LoggingBuilder;
  95 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.Multipath;
  96 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.MultipathBuilder;
  97 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.MultipathKey;
  98 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.Neighbors;
  99 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.NeighborsBuilder;
 100 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.NeighborsKey;
 101 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.Networks;
 102 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.NetworksBuilder;
 103 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.NetworksKey;
 104 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.VrfMaxpath;
 105 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.VrfMaxpathBuilder;
 106 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.VrfMaxpathKey;
 107 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.Vrfs;
 108 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.VrfsBuilder;
 109 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.VrfsKey;
 110 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.AddressFamilies;
 111 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.AddressFamiliesBuilder;
 112 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.AddressFamiliesKey;
 113 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.EbgpMultihop;
 114 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.EbgpMultihopBuilder;
 115 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.UpdateSource;
 116 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.neighbors.UpdateSourceBuilder;
 117 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.vrfs.AddressFamiliesVrf;
 118 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.bgp.vrfs.AddressFamiliesVrfBuilder;
 119 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.tcp.security.option.grouping.TcpSecurityOption;
 120 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.tcp.security.option.grouping.tcp.security.option.TcpMd5SignatureOption;
 121 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.tcp.security.option.grouping.tcp.security.option.TcpMd5SignatureOptionBuilder;
 122 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
 123 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
 124 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.FibEntries;
 125 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.fibentries.VrfTables;
 126 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.macvrfentries.MacVrfEntry;
 127 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
 128 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
 129 import org.opendaylight.yangtools.yang.binding.DataObject;
 130 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 131 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
 132 import org.osgi.framework.BundleContext;
 133 import org.slf4j.Logger;
 134 import org.slf4j.LoggerFactory;
 135
 136 @Singleton
 137 public class BgpConfigurationManager {
 138     private static final Logger LOG = LoggerFactory.getLogger(BgpConfigurationManager.class);
 139
 140     // to have stale FIB map (RD, Prefix)
 141     //  number of seconds wait for route sync-up between ODL and BGP
 142     private static final int BGP_RESTART_ROUTE_SYNC_SEC = 600;
 143     private static final String DEF_LOGFILE = "/var/log/bgp_debug.log";
 144     private static final String DEF_LOGLEVEL = "errors";
 145     private static final String UPDATE_PORT = "bgp.thrift.service.port";
 146     private static final String CONFIG_HOST = "vpnservice.bgpspeaker.host.name";
 147     private static final String CONFIG_PORT = "vpnservice.bgpspeaker.thrift.port";
 148     private static final String DEF_UPORT = "6644";
 149     private static final String DEF_CHOST = "255.255.255.255"; // Invalid Host IP
 150     private static final String DEF_CPORT = "0";               // Invalid Port
 151     private static final String DEF_BGP_SDNC_MIP = "127.0.0.1";
 152     private static final String BGP_SDNC_MIP = "vpnservice.bgp.thrift.sdnc.mip";
 153     private static final int RESTART_DEFAULT_GR = 90;
 154     private static final int DS_RETRY_COUNT = 100; //100 retries, each after WAIT_TIME_BETWEEN_EACH_TRY_MILLIS seconds
 155     private static final long WAIT_TIME_BETWEEN_EACH_TRY_MILLIS = 1000L; //one second sleep after every retry
 156     private static final String BGP_ENTITY_TYPE_FOR_OWNERSHIP = "bgp";
 157     private static final String BGP_ENTITY_NAME = "bgp";
 158     private static final String ADD_WARN = "Config store updated; undo with Delete if needed.";
 159     private static final String DEL_WARN = "Config store updated; undo with Add if needed.";
 160     private static final String UPD_WARN = "Update operation not supported; Config store updated;"
 161             + " restore with another Update if needed.";
 162
 163     private static final Class<?>[] REACTORS = {
 164         ConfigServerReactor.class, AsIdReactor.class,
 165         GracefulRestartReactor.class, LoggingReactor.class,
 166         NeighborsReactor.class, UpdateSourceReactor.class,
 167         EbgpMultihopReactor.class, AddressFamiliesReactor.class,
 168         NetworksReactor.class, VrfsReactor.class, BgpReactor.class,
 169         MultipathReactor.class, VrfMaxpathReactor.class
 170     };
 171
 172     private IBgpManager bgpManager;
 173     private final DataBroker dataBroker;
 174     private final FibDSWriter fibDSWriter;
 175     private final IVpnLinkService vpnLinkService;
 176     private final BundleContext bundleContext;
 177     private final BgpUtil bgpUtil;
 178     private volatile Bgp config;
 179     private final BgpRouter bgpRouter;
 180     private final BgpSyncHandle bgpSyncHandle = new BgpSyncHandle();
 181     private BgpThriftService updateServer;
 182
 183     private final CountDownLatch initer = new CountDownLatch(1);
 184
 185     private final String hostStartup;
 186     private final String portStartup;
 187
 188     private final AtomicReference<BgpCounters> bgpCountersReference = new AtomicReference<>();
 189     private ScheduledFuture<?> bgpCountersTask;
 190
 191     private final AtomicReference<BgpAlarms> bgpAlarmsReference = new AtomicReference<>();
 192     private ScheduledFuture<?> bgpAlarmsTask;
 193
 194     private Future<?> lastReplayJobFt;
 195     private ScheduledFuture<?> routeCleanupFuture;
 196
 197     private long staleStartTime;
 198     private long staleEndTime;
 199     private long cfgReplayStartTime;
 200     private long cfgReplayEndTime;
 201     private long staleCleanupTime;
 202     private int totalStaledCount;
 203     private int totalCleared;
 204     private int totalExternalRoutes;
 205     private int totalExternalMacRoutes;
 206
 207     private final ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(
 208             new ThreadFactoryBuilder().setNameFormat("BgpConfigurationManager-%d").setDaemon(true).build());
 209
 210     /**
 211      * this map store the new address families to send to quagga. When it is sended you must clear it.
 212      * The keys String are rd (route distinguisher).
 213      * */
 214     private final ConcurrentHashMap<String, List<AddressFamiliesVrf>> mapNewAdFamily = new ConcurrentHashMap<>();
 215
 216     // map<rd, map<prefix/len:nexthop, label>>
 217     private final Map<String, Map<String, Long>> staledFibEntriesMap = new ConcurrentHashMap<>();
 218
 219     // map<rd, map<tep-ip, map<mac, l2vni>>>
 220     private final Map<String, Map<String, Map<String, Long>>> rt2TepMap = new ConcurrentHashMap<>();
 221
 222     private final List<AutoCloseable> listeners = new ArrayList<>();
 223
 224     private final EntityOwnershipUtils entityOwnershipUtils;
 225     private final EntityOwnershipCandidateRegistration candidateRegistration;
 226     private final EntityOwnershipListenerRegistration entityListenerRegistration;
 227     private final MetricProvider metricProvider;
 228
 229     @Inject
 230     public BgpConfigurationManager(final DataBroker dataBroker,
 231             final EntityOwnershipService entityOwnershipService,
 232             final FibDSWriter fibDSWriter,
 233             final IVpnLinkService vpnLinkSrvce,
 234             final BundleContext bundleContext,
 235             final BgpUtil bgpUtil,
 236             final MetricProvider metricProvider) {
 237         this.dataBroker = dataBroker;
 238         this.fibDSWriter = fibDSWriter;
 239         this.vpnLinkService = vpnLinkSrvce;
 240         this.bundleContext = bundleContext;
 241         this.bgpUtil = bgpUtil;
 242         this.metricProvider = metricProvider;
 243         String updatePort = getProperty(UPDATE_PORT, DEF_UPORT);
 244         hostStartup = getProperty(CONFIG_HOST, DEF_CHOST);
 245         portStartup = getProperty(CONFIG_PORT, DEF_CPORT);
 246         LOG.info("UpdateServer at localhost:" + updatePort + " ConfigServer at "
 247                 + hostStartup + ":" + portStartup);
 248         VtyshCli.setHostAddr(hostStartup);
 249         ClearBgpCli.setHostAddr(hostStartup);
 250         bgpRouter = BgpRouter.newInstance(this::getConfig, this::isBGPEntityOwner);
 251         registerCallbacks();
 252
 253         entityOwnershipUtils = new EntityOwnershipUtils(entityOwnershipService);
 254
 255         candidateRegistration = registerEntityCandidate(entityOwnershipService);
 256         entityListenerRegistration = registerEntityListener(entityOwnershipService);
 257
 258         LOG.info("BGP Configuration manager initialized");
 259         initer.countDown();
 260
 261         GlobalEventExecutor.INSTANCE.execute(() -> {
 262             final WaitingServiceTracker<IBgpManager> tracker = WaitingServiceTracker.create(
 263                     IBgpManager.class, bundleContext);
 264             bgpManager = tracker.waitForService(WaitingServiceTracker.FIVE_MINUTES);
 265             updateServer = new BgpThriftService(Integer.parseInt(updatePort), bgpManager, this);
 266             updateServer.start();
 267             LOG.info("BgpConfigurationManager initialized. IBgpManager={}", bgpManager);
 268         });
 269     }
 270
 271     public String getBgpSdncMipIp() {
 272         return getProperty(BGP_SDNC_MIP, DEF_BGP_SDNC_MIP);
 273     }
 274
 275     public long getStaleCleanupTime() {
 276         return staleCleanupTime;
 277     }
 278
 279     public void setStaleCleanupTime(long staleCleanupTime) {
 280         this.staleCleanupTime = staleCleanupTime;
 281     }
 282
 283     public long getCfgReplayEndTime() {
 284         return cfgReplayEndTime;
 285     }
 286
 287     public void setCfgReplayEndTime(long cfgReplayEndTime) {
 288         this.cfgReplayEndTime = cfgReplayEndTime;
 289     }
 290
 291     public long getCfgReplayStartTime() {
 292         return cfgReplayStartTime;
 293     }
 294
 295     public void setCfgReplayStartTime(long cfgReplayStartTime) {
 296         this.cfgReplayStartTime = cfgReplayStartTime;
 297     }
 298
 299     public long getStaleEndTime() {
 300         return staleEndTime;
 301     }
 302
 303     public void setStaleEndTime(long staleEndTime) {
 304         this.staleEndTime = staleEndTime;
 305     }
 306
 307     public long getStaleStartTime() {
 308         return staleStartTime;
 309     }
 310
 311     public void setStaleStartTime(long staleStartTime) {
 312         this.staleStartTime = staleStartTime;
 313     }
 314
 315     private Object createListener(Class<?> cls) {
 316         try {
 317             Constructor<?> ctor = cls.getConstructor(BgpConfigurationManager.class);
 318             return ctor.newInstance(this);
 319         } catch (NoSuchMethodException | IllegalAccessException | InstantiationException | InvocationTargetException
 320                 e) {
 321             LOG.error("Failed to create listener object", e);
 322             return null;
 323         }
 324     }
 325
 326     private void registerCallbacks() {
 327         for (Class<?> reactor : REACTORS) {
 328             Object obj = createListener(reactor);
 329             if (obj != null) {
 330                 AsyncDataTreeChangeListenerBase dcl = (AsyncDataTreeChangeListenerBase) obj;
 331                 dcl.registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
 332                 listeners.add(dcl);
 333             }
 334         }
 335     }
 336
 337     @SuppressWarnings("checkstyle:IllegalCatch")
 338     @PreDestroy
 339     public void close() {
 340         executor.shutdown();
 341
 342         if (updateServer != null) {
 343             updateServer.stop();
 344         }
 345
 346         if (candidateRegistration != null) {
 347             candidateRegistration.close();
 348         }
 349
 350         entityListenerRegistration.close();
 351
 352         listeners.forEach(l -> {
 353             try {
 354                 l.close();
 355             } catch (Exception e) {
 356                 LOG.warn("Error closing {}", l ,e);
 357             }
 358         });
 359
 360         LOG.info("{} close", getClass().getSimpleName());
 361     }
 362
 363     private String getProperty(String var, String def) {
 364         String property = bundleContext.getProperty(var);
 365         return property == null ? def : property;
 366     }
 367
 368     private EntityOwnershipCandidateRegistration registerEntityCandidate(
 369             final EntityOwnershipService entityOwnershipService) {
 370         try {
 371             return entityOwnershipService.registerCandidate(
 372                     new Entity(BGP_ENTITY_TYPE_FOR_OWNERSHIP, BGP_ENTITY_NAME));
 373         } catch (CandidateAlreadyRegisteredException e) {
 374             LOG.error("failed to register bgp entity", e);
 375             return null;
 376         }
 377     }
 378
 379     private EntityOwnershipListenerRegistration registerEntityListener(
 380             final EntityOwnershipService entityOwnershipService) {
 381         return entityOwnershipService.registerListener(BGP_ENTITY_TYPE_FOR_OWNERSHIP, ownershipChange -> {
 382             LOG.trace("entity owner change event fired: {}", ownershipChange);
 383
 384             if (ownershipChange.getState() == EntityOwnershipChangeState.LOCAL_OWNERSHIP_GRANTED) {
 385                 LOG.trace("This PL is the Owner");
 386                 activateMIP();
 387                 bgpRestarted();
 388             } else {
 389                 LOG.debug("Not owner: hasOwner: {}, isOwner: {}", ownershipChange.getState().hasOwner(),
 390                         ownershipChange.getState().isOwner());
 391             }
 392         });
 393     }
 394
 395     public boolean isBGPEntityOwner() {
 396         return entityOwnershipUtils.isEntityOwner(new Entity(BGP_ENTITY_TYPE_FOR_OWNERSHIP, BGP_ENTITY_NAME), 0, 1);
 397     }
 398
 399     public Bgp get() {
 400         config = getConfig();
 401         return config;
 402     }
 403
 404     public class ConfigServerReactor
 405             extends AsyncDataTreeChangeListenerBase<ConfigServer, ConfigServerReactor>
 406             implements ClusteredDataTreeChangeListener<ConfigServer> {
 407         private static final String YANG_OBJ = "config-server ";
 408
 409         public ConfigServerReactor() {
 410             super(ConfigServer.class, ConfigServerReactor.class);
 411         }
 412
 413         @Override
 414         protected void add(InstanceIdentifier<ConfigServer> iid, ConfigServer val) {
 415             LOG.trace("received bgp connect config host {}", val.getHost().getValue());
 416             if (!isBGPEntityOwner()) {
 417                 return;
 418             }
 419
 420             try {
 421                 initer.await();
 422             } catch (InterruptedException e) {
 423                 // Ignored
 424             }
 425             LOG.debug("issueing bgp router connect to host {}", val.getHost().getValue());
 426             bgpRouter.configServerUpdated();
 427             synchronized (BgpConfigurationManager.this) {
 428                 boolean res = bgpRouter.connect(val.getHost().getValue(),
 429                         val.getPort().intValue());
 430                 if (!res) {
 431                     LOG.error(YANG_OBJ + "Add failed; " + ADD_WARN);
 432                 }
 433             }
 434             VtyshCli.setHostAddr(val.getHost().getValue());
 435             ClearBgpCli.setHostAddr(val.getHost().getValue());
 436         }
 437
 438         @Override
 439         protected ConfigServerReactor getDataTreeChangeListener() {
 440             return ConfigServerReactor.this;
 441         }
 442
 443         @Override
 444         protected InstanceIdentifier<ConfigServer> getWildCardPath() {
 445             return InstanceIdentifier.create(Bgp.class).child(ConfigServer.class);
 446         }
 447
 448         @Override
 449         protected void remove(InstanceIdentifier<ConfigServer> iid, ConfigServer val) {
 450             LOG.trace("received bgp disconnect");
 451             if (!isBGPEntityOwner()) {
 452                 return;
 453             }
 454
 455             bgpRouter.configServerUpdated();
 456
 457             synchronized (BgpConfigurationManager.this) {
 458                 bgpRouter.disconnect();
 459             }
 460         }
 461
 462         @Override
 463         protected void update(InstanceIdentifier<ConfigServer> iid,
 464                 ConfigServer oldval, ConfigServer newval) {
 465             LOG.trace("received bgp Connection update");
 466             if (!isBGPEntityOwner()) {
 467                 return;
 468             }
 469             LOG.error(YANG_OBJ + UPD_WARN);
 470         }
 471     }
 472
 473     private BgpRouter getClient(String yangObj) {
 474         if (bgpRouter == null || !bgpRouter.isBgpConnected()) {
 475             LOG.warn("{}: configuration received when BGP is inactive", yangObj);
 476             return null;
 477         }
 478         return bgpRouter;
 479     }
 480
 481     public class AsIdReactor
 482             extends AsyncDataTreeChangeListenerBase<AsId, AsIdReactor>
 483             implements ClusteredDataTreeChangeListener<AsId> {
 484
 485         private static final String YANG_OBJ = "as-id ";
 486
 487         public AsIdReactor() {
 488             super(AsId.class, AsIdReactor.class);
 489         }
 490
 491         @Override
 492         protected void add(InstanceIdentifier<AsId> iid, AsId val) {
 493             LOG.error("received bgp add asid {}", val);
 494             if (!isBGPEntityOwner()) {
 495                 return;
 496             }
 497             LOG.debug("received add router config asNum {}", val.getLocalAs());
 498             synchronized (BgpConfigurationManager.this) {
 499                 BgpRouter br = getClient(YANG_OBJ);
 500                 if (br == null) {
 501                     LOG.debug("{} Unable to process add for asNum {}; {}", YANG_OBJ, val.getLocalAs(),
 502                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 503                     return;
 504                 }
 505                 bgpRestarted();
 506
 507                 startBgpCountersTask();
 508                 startBgpAlarmsTask();
 509             }
 510         }
 511
 512         @Override
 513         protected AsIdReactor getDataTreeChangeListener() {
 514             return AsIdReactor.this;
 515         }
 516
 517         @Override
 518         protected InstanceIdentifier<AsId> getWildCardPath() {
 519             return InstanceIdentifier.create(Bgp.class).child(AsId.class);
 520         }
 521
 522         @Override
 523         protected void remove(InstanceIdentifier<AsId> iid, AsId val) {
 524             LOG.error("received delete router config asNum {}", val.getLocalAs());
 525             if (!isBGPEntityOwner()) {
 526                 return;
 527             }
 528             synchronized (BgpConfigurationManager.this) {
 529                 long asNum = val.getLocalAs();
 530                 BgpRouter br = getClient(YANG_OBJ);
 531                 if (br == null) {
 532                     LOG.debug("{} Unable to process remove for asNum {}; {}", YANG_OBJ, asNum,
 533                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 534                     return;
 535                 }
 536                 try {
 537                     br.stopBgp(asNum);
 538                 } catch (TException | BgpRouterException e) {
 539                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 540                 }
 541
 542                 stopBgpCountersTask();
 543                 stopBgpAlarmsTask();
 544
 545                 Bgp conf = getConfig();
 546                 if (conf == null) {
 547                     LOG.error("Config Null while removing the as-id");
 548                     return;
 549                 }
 550                 LOG.debug("Removing external routes from FIB");
 551                 deleteExternalFibRoutes();
 552                 List<Neighbors> nbrs = conf.getNeighbors();
 553                 if (nbrs != null && nbrs.size() > 0) {
 554                     LOG.error("Tring to remove the as-id when neighbor config is already present");
 555                     for (Neighbors nbr : nbrs) {
 556                         LOG.debug("Removing Neighbor {} from Data store", nbr.getAddress().getValue());
 557                         delNeighbor(nbr.getAddress().getValue());
 558                     }
 559                 }
 560             }
 561         }
 562
 563         @Override
 564         protected void update(InstanceIdentifier<AsId> iid,
 565                 AsId oldval, AsId newval) {
 566             if (!isBGPEntityOwner()) {
 567                 return;
 568             }
 569             LOG.error(YANG_OBJ + UPD_WARN);
 570         }
 571     }
 572
 573     public class GracefulRestartReactor
 574             extends AsyncDataTreeChangeListenerBase<GracefulRestart, GracefulRestartReactor>
 575             implements ClusteredDataTreeChangeListener<GracefulRestart> {
 576
 577         private static final String YANG_OBJ = "graceful-restart ";
 578
 579         public GracefulRestartReactor() {
 580             super(GracefulRestart.class, GracefulRestartReactor.class);
 581         }
 582
 583         @Override
 584         protected void add(InstanceIdentifier<GracefulRestart> iid, GracefulRestart val) {
 585             if (!isBGPEntityOwner()) {
 586                 return;
 587             }
 588             synchronized (BgpConfigurationManager.this) {
 589                 int stalePathTime = val.getStalepathTime().intValue();
 590                 BgpRouter br = getClient(YANG_OBJ);
 591                 if (br == null) {
 592                     LOG.error("{} Unable to add stale-path time {}; {}", YANG_OBJ, stalePathTime,
 593                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 594                     return;
 595                 }
 596                 try {
 597                     br.addGracefulRestart(stalePathTime);
 598                 } catch (TException | BgpRouterException e) {
 599                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
 600                 }
 601             }
 602         }
 603
 604         @Override
 605         protected GracefulRestartReactor getDataTreeChangeListener() {
 606             return GracefulRestartReactor.this;
 607         }
 608
 609         @Override
 610         protected InstanceIdentifier<GracefulRestart> getWildCardPath() {
 611             return InstanceIdentifier.create(Bgp.class).child(GracefulRestart.class);
 612         }
 613
 614         @Override
 615         protected void remove(InstanceIdentifier<GracefulRestart> iid, GracefulRestart val) {
 616             if (!isBGPEntityOwner()) {
 617                 return;
 618             }
 619             LOG.debug("received delete GracefulRestart config val {}", val.getStalepathTime().intValue());
 620             synchronized (BgpConfigurationManager.this) {
 621                 BgpRouter br = getClient(YANG_OBJ);
 622                 if (br == null) {
 623                     LOG.error("{} Unable to delete stale-path time; {}", YANG_OBJ,
 624                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 625                     return;
 626                 }
 627                 try {
 628                     br.delGracefulRestart();
 629                 } catch (TException | BgpRouterException e) {
 630                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 631                 }
 632             }
 633         }
 634
 635         @Override
 636         protected void update(InstanceIdentifier<GracefulRestart> iid,
 637                 GracefulRestart oldval, GracefulRestart newval) {
 638             if (!isBGPEntityOwner()) {
 639                 return;
 640             }
 641             LOG.debug("received update GracefulRestart config val {}", newval.getStalepathTime().intValue());
 642             synchronized (BgpConfigurationManager.this) {
 643                 int stalePathTime = newval.getStalepathTime().intValue();
 644                 BgpRouter br = getClient(YANG_OBJ);
 645                 if (br == null) {
 646                     LOG.error("{} Unable to update stale-path time to {}; {}", YANG_OBJ, stalePathTime,
 647                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 648                     return;
 649                 }
 650                 try {
 651                     br.addGracefulRestart(stalePathTime);
 652                 } catch (TException | BgpRouterException e) {
 653                     LOG.error("{} update received exception; {}", YANG_OBJ, ADD_WARN, e);
 654                 }
 655             }
 656         }
 657     }
 658
 659     public class LoggingReactor
 660             extends AsyncDataTreeChangeListenerBase<Logging, LoggingReactor>
 661             implements ClusteredDataTreeChangeListener<Logging> {
 662
 663         private static final String YANG_OBJ = "logging ";
 664
 665         public LoggingReactor() {
 666             super(Logging.class, LoggingReactor.class);
 667         }
 668
 669         @Override
 670         protected void add(InstanceIdentifier<Logging> iid, Logging val) {
 671             if (!isBGPEntityOwner()) {
 672                 return;
 673             }
 674             synchronized (BgpConfigurationManager.this) {
 675                 BgpRouter br = getClient(YANG_OBJ);
 676                 if (br == null) {
 677                     LOG.error("{} Unable to add logging for qbgp; {}", YANG_OBJ,
 678                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 679                     return;
 680                 }
 681                 try {
 682                     br.setLogging(val.getFile(), val.getLevel());
 683                 } catch (TException | BgpRouterException e) {
 684                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
 685                 }
 686             }
 687         }
 688
 689         @Override
 690         protected LoggingReactor getDataTreeChangeListener() {
 691             return LoggingReactor.this;
 692         }
 693
 694         @Override
 695         protected InstanceIdentifier<Logging> getWildCardPath() {
 696             return InstanceIdentifier.create(Bgp.class).child(Logging.class);
 697         }
 698
 699         @Override
 700         protected void remove(InstanceIdentifier<Logging> iid, Logging val) {
 701             if (!isBGPEntityOwner()) {
 702                 return;
 703             }
 704             LOG.debug("received remove Logging config val {}", val.getLevel());
 705             synchronized (BgpConfigurationManager.this) {
 706                 BgpRouter br = getClient(YANG_OBJ);
 707                 if (br == null) {
 708                     LOG.error("{} Unable to remove logging for qbgp; {}", YANG_OBJ,
 709                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 710                     return;
 711                 }
 712                 try {
 713                     br.setLogging(DEF_LOGFILE, DEF_LOGLEVEL);
 714                 } catch (TException | BgpRouterException e) {
 715                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 716                 }
 717             }
 718         }
 719
 720         @Override
 721         protected void update(InstanceIdentifier<Logging> iid,
 722                 Logging oldval, Logging newval) {
 723             if (!isBGPEntityOwner()) {
 724                 return;
 725             }
 726             synchronized (BgpConfigurationManager.this) {
 727                 BgpRouter br = getClient(YANG_OBJ);
 728                 if (br == null) {
 729                     LOG.error("{} Unable to update logging for qbgp; {}", YANG_OBJ,
 730                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 731                     return;
 732                 }
 733                 try {
 734                     br.setLogging(newval.getFile(), newval.getLevel());
 735                 } catch (TException | BgpRouterException e) {
 736                     LOG.error("{} newval received exception; {}", YANG_OBJ, ADD_WARN, e);
 737                 }
 738             }
 739         }
 740     }
 741
 742     public class NeighborsReactor
 743             extends AsyncDataTreeChangeListenerBase<Neighbors, NeighborsReactor>
 744             implements ClusteredDataTreeChangeListener<Neighbors> {
 745
 746         private static final String YANG_OBJ = "neighbors ";
 747
 748         public NeighborsReactor() {
 749             super(Neighbors.class, NeighborsReactor.class);
 750         }
 751
 752         @Override
 753         protected void add(InstanceIdentifier<Neighbors> iid, Neighbors val) {
 754             if (!isBGPEntityOwner()) {
 755                 return;
 756             }
 757             LOG.debug("received add Neighbors config val {}", val.getAddress().getValue());
 758             synchronized (BgpConfigurationManager.this) {
 759                 String peerIp = val.getAddress().getValue();
 760                 long as = val.getRemoteAs();
 761                 final String md5Secret = extractMd5Secret(val);
 762                 BgpRouter br = getClient(YANG_OBJ);
 763                 if (br == null) {
 764                     LOG.debug("{} Unable to process add for peer {} as {}; {}", YANG_OBJ, peerIp, as,
 765                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 766                     return;
 767                 }
 768                 try {
 769                     //itmProvider.buildTunnelsToDCGW(new IpAddress(peerIp.toCharArray()));
 770                     br.addNeighbor(peerIp, as, md5Secret);
 771
 772                 } catch (TException | BgpRouterException e) {
 773                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
 774                 }
 775             }
 776         }
 777
 778         @Override
 779         protected NeighborsReactor getDataTreeChangeListener() {
 780             return NeighborsReactor.this;
 781         }
 782
 783         @Override
 784         protected InstanceIdentifier<Neighbors> getWildCardPath() {
 785             return InstanceIdentifier.create(Bgp.class).child(Neighbors.class);
 786         }
 787
 788         @Override
 789         protected void remove(InstanceIdentifier<Neighbors> iid, Neighbors val) {
 790             if (!isBGPEntityOwner()) {
 791                 return;
 792             }
 793             LOG.debug("received remove Neighbors config val {}", val.getAddress().getValue());
 794             synchronized (BgpConfigurationManager.this) {
 795                 String peerIp = val.getAddress().getValue();
 796                 BgpRouter br = getClient(YANG_OBJ);
 797                 if (br == null) {
 798                     LOG.debug("{} Unable to process remove for peer {}; {}", YANG_OBJ, peerIp,
 799                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 800                     return;
 801                 }
 802                 try {
 803                     //itmProvider.deleteTunnelsToDCGW(new IpAddress(val.getAddress().getValue().toCharArray()));
 804                     br.delNeighbor(peerIp);
 805                 } catch (TException | BgpRouterException e) {
 806                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 807                 }
 808
 809                 final BgpAlarms bgpAlarms = getBgpAlarms();
 810                 if (bgpAlarms != null) {
 811                     bgpAlarms.clearBgpNbrDownAlarm(peerIp);
 812                 }
 813             }
 814         }
 815
 816         @Override
 817         protected void update(InstanceIdentifier<Neighbors> iid,
 818                 Neighbors oldval, Neighbors newval) {
 819             if (!isBGPEntityOwner()) {
 820                 return;
 821             }
 822             //purposefully nothing to do.
 823         }
 824     }
 825
 826     public class EbgpMultihopReactor
 827             extends AsyncDataTreeChangeListenerBase<EbgpMultihop, EbgpMultihopReactor>
 828             implements ClusteredDataTreeChangeListener<EbgpMultihop> {
 829
 830         private static final String YANG_OBJ = "ebgp-multihop ";
 831
 832         public EbgpMultihopReactor() {
 833             super(EbgpMultihop.class, EbgpMultihopReactor.class);
 834         }
 835
 836         @Override
 837         protected void add(InstanceIdentifier<EbgpMultihop> iid, EbgpMultihop val) {
 838             if (!isBGPEntityOwner()) {
 839                 return;
 840             }
 841             LOG.debug("received add EbgpMultihop config val {}", val.getPeerIp().getValue());
 842             synchronized (BgpConfigurationManager.this) {
 843                 String peerIp = val.getPeerIp().getValue();
 844                 BgpRouter br = getClient(YANG_OBJ);
 845                 if (br == null) {
 846                     LOG.debug("{} Unable to process add for peer {}; {}", YANG_OBJ, peerIp,
 847                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 848                     return;
 849                 }
 850                 try {
 851                     br.addEbgpMultihop(peerIp, val.getNhops().intValue());
 852                 } catch (TException | BgpRouterException e) {
 853                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
 854                 }
 855             }
 856         }
 857
 858         @Override
 859         protected EbgpMultihopReactor getDataTreeChangeListener() {
 860             return EbgpMultihopReactor.this;
 861         }
 862
 863         @Override
 864         protected InstanceIdentifier<EbgpMultihop> getWildCardPath() {
 865             return InstanceIdentifier.create(Bgp.class).child(Neighbors.class).child(EbgpMultihop.class);
 866         }
 867
 868         @Override
 869         protected void remove(InstanceIdentifier<EbgpMultihop> iid, EbgpMultihop val) {
 870             if (!isBGPEntityOwner()) {
 871                 return;
 872             }
 873             LOG.debug("received remove EbgpMultihop config val {}", val.getPeerIp().getValue());
 874             synchronized (BgpConfigurationManager.this) {
 875                 String peerIp = val.getPeerIp().getValue();
 876                 BgpRouter br = getClient(YANG_OBJ);
 877                 if (br == null) {
 878                     LOG.debug("{} Unable to process remove for peer {}; {}", YANG_OBJ, peerIp,
 879                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 880                     return;
 881                 }
 882                 try {
 883                     br.delEbgpMultihop(peerIp);
 884                 } catch (TException | BgpRouterException e) {
 885                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 886                 }
 887             }
 888         }
 889
 890         @Override
 891         protected void update(InstanceIdentifier<EbgpMultihop> iid,
 892                 EbgpMultihop oldval, EbgpMultihop newval) {
 893             if (!isBGPEntityOwner()) {
 894                 return;
 895             }
 896             LOG.error(YANG_OBJ + UPD_WARN);
 897         }
 898     }
 899
 900     public class UpdateSourceReactor
 901             extends AsyncDataTreeChangeListenerBase<UpdateSource, UpdateSourceReactor>
 902             implements ClusteredDataTreeChangeListener<UpdateSource> {
 903
 904         private static final String YANG_OBJ = "update-source ";
 905
 906         public UpdateSourceReactor() {
 907             super(UpdateSource.class, UpdateSourceReactor.class);
 908         }
 909
 910         @Override
 911         protected void add(InstanceIdentifier<UpdateSource> iid, UpdateSource val) {
 912             if (!isBGPEntityOwner()) {
 913                 return;
 914             }
 915             LOG.debug("received add UpdateSource config val {}", val.getSourceIp().getValue());
 916             synchronized (BgpConfigurationManager.this) {
 917                 String peerIp = val.getPeerIp().getValue();
 918                 BgpRouter br = getClient(YANG_OBJ);
 919                 if (br == null) {
 920                     LOG.debug("{} Unable to process add for peer {}; {}", YANG_OBJ, peerIp,
 921                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 922                     return;
 923                 }
 924                 try {
 925                     br.addUpdateSource(peerIp, val.getSourceIp().getValue());
 926                 } catch (TException | BgpRouterException e) {
 927                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
 928                 }
 929             }
 930         }
 931
 932         @Override
 933         protected UpdateSourceReactor getDataTreeChangeListener() {
 934             return UpdateSourceReactor.this;
 935         }
 936
 937         @Override
 938         protected InstanceIdentifier<UpdateSource> getWildCardPath() {
 939             return InstanceIdentifier.create(Bgp.class).child(Neighbors.class).child(UpdateSource.class);
 940         }
 941
 942         @Override
 943         protected void remove(InstanceIdentifier<UpdateSource> iid, UpdateSource val) {
 944             if (!isBGPEntityOwner()) {
 945                 return;
 946             }
 947             LOG.debug("received remove UpdateSource config val {}", val.getSourceIp().getValue());
 948             synchronized (BgpConfigurationManager.this) {
 949                 String peerIp = val.getPeerIp().getValue();
 950                 BgpRouter br = getClient(YANG_OBJ);
 951                 if (br == null) {
 952                     LOG.debug("{} Unable to process remove for peer {}; {}", YANG_OBJ, peerIp,
 953                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
 954                     return;
 955                 }
 956                 try {
 957                     br.delUpdateSource(peerIp);
 958                 } catch (TException | BgpRouterException e) {
 959                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
 960                 }
 961             }
 962         }
 963
 964         @Override
 965         protected void update(InstanceIdentifier<UpdateSource> iid,
 966                 UpdateSource oldval, UpdateSource newval) {
 967             if (!isBGPEntityOwner()) {
 968                 return;
 969             }
 970             LOG.error(YANG_OBJ + UPD_WARN);
 971         }
 972     }
 973
 974     public class AddressFamiliesReactor
 975             extends AsyncDataTreeChangeListenerBase<AddressFamilies, AddressFamiliesReactor>
 976             implements ClusteredDataTreeChangeListener<AddressFamilies> {
 977
 978         private static final String YANG_OBJ = "address-families ";
 979
 980         public AddressFamiliesReactor() {
 981             super(AddressFamilies.class, AddressFamiliesReactor.class);
 982         }
 983
 984         @Override
 985         protected void add(InstanceIdentifier<AddressFamilies> iid, AddressFamilies val) {
 986             if (!isBGPEntityOwner()) {
 987                 return;
 988             }
 989             LOG.debug("received add AddressFamilies config val {}", val.getPeerIp().getValue());
 990             synchronized (BgpConfigurationManager.this) {
 991                 String peerIp = val.getPeerIp().getValue();
 992                 BgpRouter br = getClient(YANG_OBJ);
 993                 if (br == null) {
 994                     LOG.debug("{} Unable to process add for peer {}; {}", YANG_OBJ, peerIp,
 995                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
 996                     return;
 997                 }
 998                 af_afi afi = af_afi.findByValue(val.getAfi().intValue());
 999                 af_safi safi = af_safi.findByValue(val.getSafi().intValue());
1000                 try {
1001                     br.addAddressFamily(peerIp, afi, safi);
1002                 } catch (TException | BgpRouterException e) {
1003                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
1004                 }
1005             }
1006         }
1007
1008         @Override
1009         protected AddressFamiliesReactor getDataTreeChangeListener() {
1010             return AddressFamiliesReactor.this;
1011         }
1012
1013         @Override
1014         protected InstanceIdentifier<AddressFamilies> getWildCardPath() {
1015             return InstanceIdentifier.create(Bgp.class).child(Neighbors.class).child(AddressFamilies.class);
1016         }
1017
1018         @Override
1019         protected void remove(InstanceIdentifier<AddressFamilies> iid, AddressFamilies val) {
1020             if (!isBGPEntityOwner()) {
1021                 return;
1022             }
1023             LOG.debug("received remove AddressFamilies config val {}", val.getPeerIp().getValue());
1024             synchronized (BgpConfigurationManager.this) {
1025                 String peerIp = val.getPeerIp().getValue();
1026                 BgpRouter br = getClient(YANG_OBJ);
1027                 if (br == null) {
1028                     LOG.debug("{} Unable to process remove for peer {}; {}", YANG_OBJ, peerIp,
1029                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
1030                     return;
1031                 }
1032                 af_afi afi = af_afi.findByValue(val.getAfi().intValue());
1033                 af_safi safi = af_safi.findByValue(val.getSafi().intValue());
1034                 try {
1035                     br.delAddressFamily(peerIp, afi, safi);
1036                 } catch (TException | BgpRouterException e) {
1037                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
1038                 }
1039             }
1040         }
1041
1042         @Override
1043         protected void update(InstanceIdentifier<AddressFamilies> iid,
1044                 AddressFamilies oldval, AddressFamilies newval) {
1045             if (!isBGPEntityOwner()) {
1046                 return;
1047             }
1048             LOG.error(YANG_OBJ + UPD_WARN);
1049         }
1050     }
1051
1052     public class NetworksReactor
1053             extends AsyncDataTreeChangeListenerBase<Networks, NetworksReactor>
1054             implements ClusteredDataTreeChangeListener<Networks> {
1055
1056         private static final String YANG_OBJ = "networks ";
1057
1058         public NetworksReactor() {
1059             super(Networks.class, NetworksReactor.class);
1060         }
1061
1062         @Override
1063         public NetworksReactor getDataTreeChangeListener() {
1064             return NetworksReactor.this;
1065         }
1066
1067         @Override
1068         protected void add(InstanceIdentifier<Networks> iid, Networks val) {
1069             if (!isBGPEntityOwner()) {
1070                 return;
1071             }
1072             LOG.debug("received add Networks config val {}", val.getPrefixLen());
1073             synchronized (BgpConfigurationManager.this) {
1074                 String rd = val.getRd();
1075                 String pfxlen = val.getPrefixLen();
1076                 String nh = val.getNexthop().getValue();
1077                 BgpRouter br = getClient(YANG_OBJ);
1078                 if (br == null) {
1079                     LOG.debug("{} Unable to process add for rd {} prefix {} nexthop {}; {}", YANG_OBJ, rd, pfxlen, nh,
1080                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
1081                     return;
1082                 }
1083                 Long label = val.getLabel();
1084                 int lbl = label == null ? qbgpConstants.LBL_NO_LABEL
1085                         : label.intValue();
1086                 int l3vni = val.getL3vni() == null ? qbgpConstants.LBL_NO_LABEL
1087                         : val.getL3vni().intValue();
1088                 int l2vni = val.getL2vni() == null ? qbgpConstants.LBL_NO_LABEL
1089                         : val.getL2vni().intValue();
1090
1091                 BgpControlPlaneType protocolType = val.getBgpControlPlaneType();
1092                 int ethernetTag = val.getEthtag().intValue();
1093                 String esi = val.getEsi();
1094                 String macaddress = val.getMacaddress();
1095                 EncapType encapType = val.getEncapType();
1096                 String routerMac = val.getRoutermac();
1097
1098                 try {
1099                     br.addPrefix(rd, pfxlen, nh, lbl, l3vni, l2vni, BgpUtil.convertToThriftProtocolType(protocolType),
1100                             ethernetTag, esi, macaddress, BgpUtil.convertToThriftEncapType(encapType), routerMac);
1101                 } catch (TException | BgpRouterException e) {
1102                     LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
1103                 }
1104             }
1105         }
1106
1107         @Override
1108         protected InstanceIdentifier<Networks> getWildCardPath() {
1109             return InstanceIdentifier.create(Bgp.class).child(Networks.class);
1110         }
1111
1112         @Override
1113         protected void remove(InstanceIdentifier<Networks> iid, Networks val) {
1114             if (!isBGPEntityOwner()) {
1115                 return;
1116             }
1117             LOG.debug("received remove Networks config val {}", val.getPrefixLen());
1118             synchronized (BgpConfigurationManager.this) {
1119                 String rd = val.getRd();
1120                 String pfxlen = val.getPrefixLen();
1121                 BgpRouter br = getClient(YANG_OBJ);
1122                 if (br == null) {
1123                     LOG.debug("{} Unable to process remove for rd {} prefix {}; {}", YANG_OBJ, rd, pfxlen,
1124                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
1125                     return;
1126                 }
1127                 Long label = val.getLabel();
1128                 int lbl = label == null ? 0 : label.intValue();
1129                 if (rd == null && lbl > 0) {
1130                     //LU prefix is being deleted.
1131                     rd = Integer.toString(lbl);
1132                 }
1133                 try {
1134                     br.delPrefix(rd, pfxlen);
1135                 } catch (TException | BgpRouterException e) {
1136                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
1137                 }
1138             }
1139         }
1140
1141         /**get the value AFI from a prefix as "x.x.x.x/x".
1142          *
1143          * @param pfxlen the prefix to get an afi
1144          * @return the afi value as you are need
1145          */
1146         public  int  testValueAFI(String pfxlen) {
1147             int afiNew = af_afi.AFI_IP.getValue();
1148             try {
1149                 String ipOnly = pfxlen.substring(0, pfxlen.lastIndexOf("/"));
1150                 java.net.Inet6Address.getByName(ipOnly);
1151                 afiNew = af_afi.AFI_IPV6.getValue();
1152             } catch (java.net.UnknownHostException e) {
1153                 //ce n'est pas de l'ipv6
1154             }
1155             return afiNew;
1156         }
1157
1158
1159         @Override
1160         protected void update(final InstanceIdentifier<Networks> iid,
1161                 final Networks oldval, final Networks newval) {
1162             if (!isBGPEntityOwner()) {
1163                 return;
1164             }
1165             if (oldval.equals(newval)) {
1166                 //Update: OLD and New values are same, no need to trigger remove/add.
1167                 LOG.debug("received Updated for the same OLD and New values. RD: {}, Prefix: {}, Label: {}, NH: {}",
1168                         oldval.getRd(), oldval.getPrefixLen(), oldval.getLabel(), oldval.getNexthop());
1169                 return;
1170             }
1171             LOG.debug("update networks old val RD: {}, Prefix: {}, Label: {}, NH: {} "
1172                             + "new val RD: {}, Prefix: {}, Label: {}, NH: {}",
1173                     oldval.getRd(), oldval.getPrefixLen(), oldval.getLabel(), oldval.getNexthop(),
1174                     newval.getRd(), newval.getPrefixLen(), newval.getLabel(), newval.getNexthop());
1175             remove(iid, oldval);
1176             add(iid, newval);
1177         }
1178     }
1179
1180     static Timer timer = new Timer();
1181
1182     public class VrfsReactor
1183             extends AsyncDataTreeChangeListenerBase<Vrfs, VrfsReactor>
1184             implements ClusteredDataTreeChangeListener<Vrfs> {
1185
1186         private static final String YANG_OBJ = "vrfs ";
1187
1188         public VrfsReactor() {
1189             super(Vrfs.class, VrfsReactor.class);
1190         }
1191
1192         @Override
1193         protected void add(InstanceIdentifier<Vrfs> iid, Vrfs vrfs) {
1194             if (!isBGPEntityOwner()) {
1195                 return;
1196             }
1197             LOG.debug("received add Vrfs config value {}", vrfs.getRd());
1198             synchronized (BgpConfigurationManager.this) {
1199                 String rd = vrfs.getRd();
1200                 BgpRouter br = getClient(YANG_OBJ);
1201                 if (br == null) {
1202                     LOG.debug("{} Unable to process add for rd {}; {}", YANG_OBJ, rd,
1203                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
1204                     return;
1205                 }
1206                 try {
1207                     List<AddressFamiliesVrf> vrfAddrFamilyList = vrfs.getAddressFamiliesVrf();
1208                     for (AddressFamiliesVrf vrfAddrFamily : vrfAddrFamilyList) {
1209                         /*add to br the new vrfs arguments*/
1210                         br.addVrf(BgpUtil.getLayerType(vrfAddrFamily), rd, vrfs.getImportRts(), vrfs.getExportRts()
1211                         );
1212                     }
1213                     /*add to br the vrfs contained in mapNewAdFamily*/
1214                     List<AddressFamiliesVrf> vrfAddrFamilyListFromMap = mapNewAdFamily.get(rd);
1215                     if (vrfAddrFamilyListFromMap == null) {
1216                         return;
1217                     }
1218
1219                     for (AddressFamiliesVrf adf : vrfAddrFamilyListFromMap) {
1220                         if (vrfAddrFamilyList.contains(adf)) {
1221                             mapNewAdFamily.remove(rd);
1222                         } else  if (adf != null) {
1223
1224                             br.addVrf(BgpUtil.getLayerType(adf), rd, vrfs.getImportRts(), vrfs.getExportRts()
1225                             );
1226                             // remove AddressFamiliesVrf which was already added to BGP
1227                             vrfAddrFamilyListFromMap.remove(adf);
1228                             if (vrfAddrFamilyListFromMap.isEmpty()) {
1229                                 // remove Vrf entry from temp mapNewAdFamily if all its AddressFamiliesVrf was
1230                                 // added to BGP
1231                                 mapNewAdFamily.remove(rd);
1232                             }
1233                         }
1234                     }
1235                 } catch (TException | BgpRouterException e) {
1236                     LOG.error("{} get {}, Add received exception; {}", YANG_OBJ, ADD_WARN, e);
1237                 }
1238             }
1239         }
1240
1241         @Override
1242         protected VrfsReactor getDataTreeChangeListener() {
1243             return VrfsReactor.this;
1244         }
1245
1246         @Override
1247         protected InstanceIdentifier<Vrfs> getWildCardPath() {
1248             return InstanceIdentifier.create(Bgp.class).child(Vrfs.class);
1249         }
1250
1251         @Override
1252         protected void remove(InstanceIdentifier<Vrfs> iid, Vrfs val) {
1253             if (!isBGPEntityOwner()) {
1254                 return;
1255             }
1256             LOG.debug("received remove Vrfs config val {}", val.getRd());
1257             synchronized (BgpConfigurationManager.this) {
1258                 String rd = val.getRd();
1259                 BgpRouter br = getClient(YANG_OBJ);
1260                 if (br == null) {
1261                     LOG.debug("{} Unable to process remove for rd {}; {}", YANG_OBJ, rd,
1262                             BgpRouterException.BGP_ERR_NOT_INITED, DEL_WARN);
1263                     return;
1264                 }
1265                 try {
1266                     List<AddressFamiliesVrf> adf = mapNewAdFamily.get(rd);
1267                     adf = adf != null ? adf : new ArrayList<>();
1268                     for (AddressFamiliesVrf s : val.getAddressFamiliesVrf()) {
1269                         br.delVrf(rd, s.getAfi(), s.getSafi());
1270                         adf.remove(s);// remove in the map the vrf in waiting for advertise quagga
1271                     }
1272                     if (adf.isEmpty()) {
1273                         mapNewAdFamily.remove(rd);
1274                     }
1275                 } catch (TException | BgpRouterException e) {
1276                     LOG.error("{} Delete received exception; {}", YANG_OBJ, DEL_WARN, e);
1277                 }
1278             }
1279         }
1280
1281         @Override
1282         protected void update(InstanceIdentifier<Vrfs> iid,
1283                 Vrfs oldval, Vrfs newval) {
1284             if (oldval != null && newval != null) {
1285                 LOG.debug("received update Vrfs config val {}, VRFS: Update getting triggered for VRFS rd {}",
1286                         newval.getRd(), oldval.getRd());
1287             } else {
1288                 LOG.debug("received update Vrfs config val {}, from old vrf {}",
1289                         newval, oldval);
1290             }
1291             if (!isBGPEntityOwner()) {
1292                 return;
1293             }
1294
1295             List<AddressFamiliesVrf> adFamilyVrfToDel = new ArrayList<>();
1296             List<AddressFamiliesVrf> adFamilyVrfToAdd = new ArrayList<>();
1297             List<AddressFamiliesVrf> oldlistAdFamilies = new ArrayList<>();
1298             List<AddressFamiliesVrf> newlistAdFamilies = new ArrayList<>();
1299             if (oldval != null) {
1300                 oldlistAdFamilies = oldval.getAddressFamiliesVrf() == null
1301                         ? new ArrayList<>() : oldval.getAddressFamiliesVrf();
1302             }
1303             if (newval != null) {
1304                 newlistAdFamilies = newval.getAddressFamiliesVrf() == null
1305                         ? new ArrayList<>() : newval.getAddressFamiliesVrf();
1306             }
1307             /*find old AddressFamily to remove from new configuration*/
1308             for (AddressFamiliesVrf adVrf : oldlistAdFamilies) {
1309                 if (!newlistAdFamilies.contains(adVrf)) {
1310                     adFamilyVrfToDel.add(adVrf);
1311                 }
1312             }
1313             /*find new AddressFamily to add to unexisting configuration*/
1314             for (AddressFamiliesVrf adVrf : newlistAdFamilies) {
1315                 if (!oldlistAdFamilies.contains(adVrf)) {
1316                     adFamilyVrfToAdd.add(adVrf);
1317                 }
1318             }
1319             String rd = newval != null ? newval.getRd() : null;
1320             if (rd != null) {
1321                 BgpRouter br = getClient(YANG_OBJ);
1322                 if (br == null) {
1323                     LOG.debug("{} Unable to process add for rd {}; {}", YANG_OBJ, rd,
1324                             BgpRouterException.BGP_ERR_NOT_INITED, ADD_WARN);
1325                     return;
1326                 }
1327
1328                 for (AddressFamiliesVrf adfvrf : adFamilyVrfToAdd) {
1329                     try {
1330                         LOG.debug("call addVRf rd {} afi {} safi {}", rd, adfvrf.getAfi(), adfvrf.getSafi());
1331                         br.addVrf(BgpUtil.getLayerType(adfvrf), rd, newval.getImportRts(),
1332                                 newval.getExportRts());
1333                     } catch (TException | BgpRouterException e) {
1334                         LOG.error("{} Add received exception; {}", YANG_OBJ, ADD_WARN, e);
1335                     }
1336                 }
1337
1338                 for (AddressFamiliesVrf adfToDel : adFamilyVrfToDel) {
1339                     try {
1340                         LOG.debug("call delVRf rd {} afi {} safi {}", rd, adfToDel.getAfi(), adfToDel.getSafi());
1341                         br.delVrf(rd, adfToDel.getAfi(), adfToDel.getSafi());
1342                     } catch (TException | BgpRouterException e) {
1343                         LOG.error("{} delVrf received exception; {}", YANG_OBJ, ADD_WARN, e);
1344                     }
1345                 }
1346             }
1347         }
1348     }
1349
1350     protected void activateMIP() {
1351         try {
1352             LOG.trace("BgpReactor: Executing MIP Activate command");
1353             Runtime.getRuntime().exec("cluster ip -a sdnc_bgp_mip");
1354             Runtime.getRuntime().exec("cluster ip -a sdnc_os_mip");
1355             LOG.trace("bgpMIP Activated");
1356
1357         } catch (IOException io) {
1358             LOG.error("IO Exception got while activating mip: {}", io.getMessage());
1359         }
1360     }
1361
1362     public class BgpReactor
1363             extends AsyncDataTreeChangeListenerBase<Bgp, BgpReactor>
1364             implements ClusteredDataTreeChangeListener<Bgp> {
1365
1366         private static final String YANG_OBJ = "Bgp ";
1367
1368         public BgpReactor() {
1369             super(Bgp.class, BgpReactor.class);
1370         }
1371
1372
1373         @Override
1374         protected void add(InstanceIdentifier<Bgp> iid, Bgp val) {
1375             LOG.debug("received add Bgp config");
1376
1377             try {
1378                 initer.await();
1379             } catch (InterruptedException e) {
1380                 // Ignored
1381             }
1382             synchronized (BgpConfigurationManager.this) {
1383                 config = val;
1384                 if (!isBGPEntityOwner()) {
1385                     return;
1386                 }
1387                 activateMIP();
1388             }
1389         }
1390
1391         @Override
1392         protected BgpReactor getDataTreeChangeListener() {
1393             return BgpReactor.this;
1394         }
1395
1396         @Override
1397         protected InstanceIdentifier<Bgp> getWildCardPath() {
1398             return InstanceIdentifier.create(Bgp.class);
1399         }
1400
1401         @Override
1402         protected void remove(InstanceIdentifier<Bgp> iid, Bgp val) {
1403             if (!isBGPEntityOwner()) {
1404                 return;
1405             }
1406             LOG.debug("received remove Bgp config");
1407
1408             config = null;
1409         }
1410
1411         @Override
1412         protected void update(InstanceIdentifier<Bgp> iid,
1413                 Bgp oldval, Bgp newval) {
1414             if (!isBGPEntityOwner()) {
1415                 return;
1416             }
1417
1418             config = newval;
1419         }
1420     }
1421
1422     @SuppressWarnings("deprecation")
1423     public class MultipathReactor
1424             extends AsyncDataTreeChangeListenerBase<Multipath, MultipathReactor>
1425             implements ClusteredDataTreeChangeListener<Multipath> {
1426
1427         private static final String YANG_OBJ = "multipath ";
1428
1429         public MultipathReactor() {
1430             super(Multipath.class, MultipathReactor.class);
1431         }
1432
1433
1434         @Override
1435         protected MultipathReactor getDataTreeChangeListener() {
1436             return MultipathReactor.this;
1437         }
1438
1439         @Override
1440         protected InstanceIdentifier<Multipath> getWildCardPath() {
1441             return InstanceIdentifier.create(Bgp.class).child(Multipath.class);
1442         }
1443
1444         @Override
1445         protected void remove(InstanceIdentifier<Multipath> iid, Multipath val) {
1446             executor.execute(new MultipathStatusChange(val));
1447         }
1448
1449         @Override
1450         protected void update(InstanceIdentifier<Multipath> iid, Multipath oldval, Multipath newval) {
1451             executor.execute(new MultipathStatusChange(newval));
1452         }
1453
1454         @Override
1455         protected void add(InstanceIdentifier<Multipath> key, Multipath dataObjectModification) {
1456             executor.execute(new MultipathStatusChange(dataObjectModification));
1457         }
1458
1459         class MultipathStatusChange implements Runnable {
1460
1461             Multipath multipath;
1462
1463             MultipathStatusChange(Multipath multipath) {
1464                 this.multipath = multipath;
1465             }
1466
1467             @Override
1468             public void run() {
1469                 if (isBGPEntityOwner()) {
1470                     synchronized (BgpConfigurationManager.this) {
1471
1472                         BgpRouter br = getClient(YANG_OBJ);
1473
1474                         if (br != null) {
1475                             af_afi afi = af_afi.findByValue(multipath.getAfi().intValue());
1476                             af_safi safi = af_safi.findByValue(multipath.getSafi().intValue());
1477
1478                             try {
1479                                 if (multipath.isMultipathEnabled()) {
1480                                     br.enableMultipath(afi, safi);
1481                                 } else {
1482                                     br.disableMultipath(afi, safi);
1483                                 }
1484                             } catch (TException | BgpRouterException e) {
1485                                 LOG.error(YANG_OBJ + " received exception: \"" + e + "\"");
1486                             }
1487                         }
1488                     }
1489                 }
1490             }
1491
1492         }
1493
1494         @Override
1495         public void close() {
1496             super.close();
1497         }
1498     }
1499
1500     @SuppressWarnings("deprecation")
1501     public class VrfMaxpathReactor
1502             extends AsyncDataTreeChangeListenerBase<VrfMaxpath, VrfMaxpathReactor>
1503             implements ClusteredDataTreeChangeListener<VrfMaxpath> {
1504
1505         private static final String YANG_OBJ = "vrfMaxpath ";
1506
1507         public VrfMaxpathReactor() {
1508             super(VrfMaxpath.class, VrfMaxpathReactor.class);
1509         }
1510
1511
1512         @Override
1513         protected VrfMaxpathReactor getDataTreeChangeListener() {
1514             return VrfMaxpathReactor.this;
1515         }
1516
1517         @Override
1518         protected InstanceIdentifier<VrfMaxpath> getWildCardPath() {
1519             return InstanceIdentifier.create(Bgp.class).child(VrfMaxpath.class);
1520         }
1521
1522         class VrfMaxPathConfigurator implements Runnable {
1523
1524             VrfMaxpath vrfMaxpathVal;
1525
1526             VrfMaxPathConfigurator(VrfMaxpath vrfMaxPathVal) {
1527                 this.vrfMaxpathVal = vrfMaxPathVal;
1528             }
1529
1530             @Override
1531             public void run() {
1532                 if (isBGPEntityOwner()) {
1533                     synchronized (BgpConfigurationManager.this) {
1534                         BgpRouter br = getClient(YANG_OBJ);
1535                         if (br != null) {
1536                             try {
1537                                 br.multipaths(vrfMaxpathVal.getRd(), vrfMaxpathVal.getMaxpaths());
1538                                 LOG.debug("Maxpath for vrf: " + vrfMaxpathVal.getRd() + " : is "
1539                                         + vrfMaxpathVal.getMaxpaths());
1540                             } catch (TException | BgpRouterException e) {
1541                                 LOG.error(YANG_OBJ
1542                                         + " received exception: \"" + e + "\"");
1543                             }
1544                         }
1545                     }
1546                 }
1547             }
1548         }
1549
1550         @Override
1551         protected void remove(InstanceIdentifier<VrfMaxpath> iid, VrfMaxpath vrfMaxPathVal) {
1552             executor.execute(new VrfMaxPathConfigurator(vrfMaxPathVal));
1553         }
1554
1555         @Override
1556         protected void update(InstanceIdentifier<VrfMaxpath> iid,
1557                               VrfMaxpath oldval, VrfMaxpath newval) {
1558             if (!Objects.equals(oldval.getMaxpaths(), newval.getMaxpaths())) {
1559                 executor.execute(new VrfMaxPathConfigurator(newval));
1560             }
1561         }
1562
1563         @Override
1564         protected void add(InstanceIdentifier<VrfMaxpath> instanceIdentifier, VrfMaxpath vrfMaxpathVal) {
1565             executor.execute(new VrfMaxPathConfigurator(vrfMaxpathVal));
1566         }
1567
1568         @Override
1569         public void close() {
1570             super.close();
1571         }
1572     }
1573
1574     public boolean isIpAvailable(String odlip) {
1575
1576         try {
1577             if (odlip != null) {
1578                 if ("127.0.0.1".equals(odlip)) {
1579                     return true;
1580                 }
1581                 Enumeration<NetworkInterface> networkInterfaceEnumeration = NetworkInterface.getNetworkInterfaces();
1582                 while (networkInterfaceEnumeration.hasMoreElements()) {
1583                     NetworkInterface networkInterface = networkInterfaceEnumeration.nextElement();
1584                     Enumeration<InetAddress>  inetAddressEnumeration = networkInterface.getInetAddresses();
1585                     while (inetAddressEnumeration.hasMoreElements()) {
1586                         InetAddress inetAddress = inetAddressEnumeration.nextElement();
1587                         if (odlip.equals(inetAddress.getHostAddress())) {
1588                             return true;
1589                         }
1590                     }
1591                 }
1592             }
1593         } catch (SocketException e) {
1594             // Ignored?
1595         }
1596         return false;
1597     }
1598
1599     public long getStalePathtime(int defValue, AsId asId) {
1600         long spt = 0;
1601         try {
1602             spt = getConfig().getGracefulRestart().getStalepathTime();
1603         } catch (NullPointerException e) {
1604             try {
1605                 spt = asId.getStalepathTime();
1606                 LOG.trace("BGP config/Stale-path time is not set using graceful");
1607             } catch (NullPointerException ignore) {
1608                 LOG.trace("BGP AS id is not set using graceful");
1609                 spt = defValue;
1610             }
1611         }
1612         if (spt == 0) {
1613             LOG.trace("BGP config/Stale-path time is not set using graceful/start-bgp");
1614             spt = defValue;
1615         }
1616         return spt;
1617     }
1618
1619     public static boolean isValidConfigBgpHostPort(String bgpHost, int bgpPort) {
1620         if (!bgpHost.equals(DEF_CHOST) && bgpPort != Integer.parseInt(DEF_CPORT)) {
1621             return true;
1622         } else {
1623             return false;
1624         }
1625     }
1626
1627     public synchronized void bgpRestarted() {
1628         /*
1629          * If there a thread which in the process of stale cleanup, cancel it
1630          * and start a new thread (to avoid processing same again).
1631          */
1632         if (previousReplayJobInProgress()) {
1633             cancelPreviousReplayJob();
1634         }
1635         Runnable task = () -> {
1636             try {
1637                 LOG.info("running bgp replay task ");
1638                 if (get() == null) {
1639                     String host = getConfigHost();
1640                     int port = getConfigPort();
1641                     LOG.info("connecting  to bgp host {} ", host);
1642                     bgpRouter.connect(host, port);
1643                     LOG.info("no config to push in bgp replay task ");
1644                     return;
1645                 }
1646                 setStaleStartTime(System.currentTimeMillis());
1647                 LOG.info("started creating stale fibDSWriter  map ");
1648                 createStaleFibMap();
1649                 setStaleEndTime(System.currentTimeMillis());
1650                 LOG.info("took {} msecs for stale fibDSWriter map creation ", getStaleEndTime() - getStaleStartTime());
1651                 LOG.info("started bgp config replay ");
1652                 setCfgReplayStartTime(System.currentTimeMillis());
1653                 boolean replaySucceded = replay();
1654                 setCfgReplayEndTime(System.currentTimeMillis());
1655                 LOG.info("took {} msecs for bgp replay ", getCfgReplayEndTime() - getCfgReplayStartTime());
1656                 if (replaySucceded) {
1657                     LOG.info("starting the stale cleanup timer");
1658                     long routeSyncTime = getStalePathtime(BGP_RESTART_ROUTE_SYNC_SEC, config.getAsId());
1659                     setStaleCleanupTime(routeSyncTime);
1660                     routeCleanupFuture = executor.schedule(new RouteCleanup(), routeSyncTime, TimeUnit.SECONDS);
1661                 } else {
1662                     staledFibEntriesMap.clear();
1663                 }
1664             } catch (InterruptedException | TimeoutException | ExecutionException eCancel) {
1665                 LOG.error("Stale Cleanup Task Cancelled", eCancel);
1666             }
1667         };
1668         lastReplayJobFt = executor.submit(task);
1669     }
1670
1671     private boolean previousReplayJobInProgress() {
1672         return lastReplayJobFt != null && !lastReplayJobFt.isDone();
1673     }
1674
1675     private void cancelPreviousReplayJob() {
1676         try {
1677             LOG.error("cancelling already running bgp replay task");
1678             if (lastReplayJobFt != null) {
1679                 lastReplayJobFt.cancel(true);
1680                 lastReplayJobFt = null;
1681                 staledFibEntriesMap.clear();
1682             }
1683             if (routeCleanupFuture != null) {
1684                 routeCleanupFuture.cancel(true);
1685                 routeCleanupFuture = null;
1686                 staledFibEntriesMap.clear();
1687             }
1688             Thread.sleep(2000);
1689         } catch (InterruptedException e) {
1690             LOG.error("Failed to cancel previous replay job ", e);
1691         }
1692     }
1693
1694     private void doRouteSync() {
1695         LOG.error("Starting BGP route sync");
1696         try {
1697             bgpRouter.initRibSync(bgpSyncHandle);
1698         } catch (BgpRouterException e) {
1699             LOG.error("Route sync aborted, exception when initializing", e);
1700             return;
1701         }
1702         while (bgpSyncHandle.getState() != BgpSyncHandle.DONE) {
1703             for (af_afi afi : af_afi.values()) {
1704                 Routes routes = null;
1705                 try {
1706                     routes = bgpRouter.doRibSync(bgpSyncHandle, afi);
1707                 } catch (TException | BgpRouterException e) {
1708                     LOG.error("Route sync aborted, exception when syncing", e);
1709                     return;
1710                 }
1711                 Iterator<Update> updates = routes.getUpdatesIterator();
1712                 while (updates.hasNext()) {
1713                     Update update = updates.next();
1714                     String rd = update.getRd();
1715                     String nexthop = update.getNexthop();
1716
1717                     // TODO: decide correct label here
1718                     int label = update.getL3label();
1719                     int l2label = update.getL2label();
1720
1721                     String prefix = update.getPrefix();
1722                     int plen = update.getPrefixlen();
1723
1724
1725                     // TODO: protocol type will not be available in "update"
1726                     // use "rd" to query vrf table and obtain the protocol_type.
1727                     // Currently using PROTOCOL_EVPN as default.
1728                     onUpdatePushRoute(
1729                            protocol_type.PROTOCOL_EVPN,
1730                            rd,
1731                            prefix,
1732                            plen,
1733                            nexthop,
1734                            update.getMacaddress(),
1735                            label,
1736                            l2label,
1737                            update.getRoutermac(),
1738                            afi);
1739                 }
1740             }
1741         }
1742         try {
1743             LOG.error("Ending BGP route-sync");
1744             bgpRouter.endRibSync(bgpSyncHandle);
1745         } catch (BgpRouterException e) {
1746             // Ignored?
1747         }
1748     }
1749
1750     public void addTepToElanDS(String rd, String tepIp, String mac, Long l2vni) {
1751         boolean needUpdate = addToRt2TepMap(rd, tepIp, mac, l2vni);
1752         if (needUpdate) {
1753             LOG.info("Adding tepIp {} with RD {} to ELan DS", tepIp, rd);
1754             bgpUtil.addTepToElanInstance(rd, tepIp);
1755         } else {
1756             LOG.debug("Skipping the Elan update for RT2 from tep {} rd {}", tepIp, rd);
1757         }
1758     }
1759
1760     public void deleteTepfromElanDS(String rd, String tepIp, String mac) {
1761         boolean needUpdate = deleteFromRt2TepMap(rd, tepIp, mac);
1762         if (needUpdate) {
1763             LOG.info("Deleting tepIp {} with RD {} to ELan DS", tepIp, rd);
1764             bgpUtil.deleteTepFromElanInstance(rd, tepIp);
1765         } else {
1766             LOG.debug("Skipping the Elan update for RT2 withdraw from tep {} rd {}", tepIp, rd);
1767         }
1768     }
1769
1770     /* onUpdatePushRoute
1771      * Get Stale fibDSWriter map, and compare current route/fibDSWriter entry.
1772      *  - Entry compare shall include NextHop, Label.
1773      *  - If entry matches: delete from STALE Map. NO Change to FIB Config DS.
1774      *  - If entry not found, add to FIB Config DS.
1775      *  - If entry found, but either Label/NextHop doesn't match.
1776      *      - Update FIB Config DS with modified values.
1777      *      - delete from Stale Map.
1778      */
1779
1780     public void onUpdatePushRoute(protocol_type protocolType, String rd, String prefix, int plen, String nextHop,
1781                                   String macaddress, int label, int l2label, String routermac, af_afi afi) {
1782         boolean addroute = false;
1783         boolean macupdate = false;
1784         long l3vni = 0L;
1785         VrfEntry.EncapType encapType = VrfEntry.EncapType.Mplsgre;
1786         if (protocolType.equals(protocol_type.PROTOCOL_EVPN)) {
1787             encapType = VrfEntry.EncapType.Vxlan;
1788             VpnInstanceOpDataEntry vpnInstanceOpDataEntry = bgpUtil.getVpnInstanceOpData(rd);
1789             if (vpnInstanceOpDataEntry != null) {
1790                 if (vpnInstanceOpDataEntry.getType() == VpnInstanceOpDataEntry.Type.L2) {
1791                     LOG.info("Got RT2 route for RD {} l3label {} l2label {} from tep {} with mac {} remote RD {}",
1792                             vpnInstanceOpDataEntry.getVpnInstanceName(), label, l2label, nextHop, macaddress, rd);
1793                     addTepToElanDS(rd, nextHop, macaddress, (long)l2label);
1794                     macupdate = true;
1795                 } else {
1796                     l3vni = vpnInstanceOpDataEntry.getL3vni();
1797                 }
1798             } else {
1799                 LOG.error("No corresponding vpn instance found for rd {}. Aborting.", rd);
1800                 return;
1801             }
1802         }
1803
1804         if (!staledFibEntriesMap.isEmpty()) {
1805             // restart Scenario, as MAP is not empty.
1806             Map<String, Long> map = staledFibEntriesMap.get(rd);
1807             if (map != null) {
1808                 String prefixNextHop = appendNextHopToPrefix(prefix + "/" + plen, nextHop);
1809                 Long labelInStaleMap = map.get(prefixNextHop);
1810                 if (null == labelInStaleMap) {
1811                     // New Entry, which happened to be added during restart.
1812                     addroute = true;
1813                 } else {
1814                     map.remove(prefixNextHop);
1815                     if (isRouteModified(label, labelInStaleMap)) {
1816                         LOG.debug("Route add ** {} ** {}/{} ** {} ** {} ", rd, prefix, plen, nextHop, label);
1817                         // Existing entry, where in Label got modified during restart
1818                         addroute = true;
1819                     }
1820                 }
1821             } else {
1822                 LOG.debug("rd {} map is null while processing prefix {} ", rd, prefix);
1823                 addroute = true;
1824             }
1825         } else {
1826             LOG.debug("Route add ** {} ** {}/{} ** {} ** {} ", rd, prefix, plen, nextHop, label);
1827             addroute = true;
1828         }
1829         if (macupdate) {
1830             LOG.info("ADD: Adding Mac Fib entry rd {} mac{} nexthop {} l2vni {}", rd, macaddress, nextHop, l2label);
1831             fibDSWriter.addMacEntryToDS(rd, macaddress, prefix, Collections.singletonList(nextHop),
1832                     encapType, l2label, routermac, RouteOrigin.BGP);
1833             LOG.info("ADD: Added Mac Fib entry rd {} prefix {} nexthop {} label {}", rd, macaddress, nextHop, l2label);
1834         } else if (addroute) {
1835             LOG.info("ADD: Adding Fib entry rd {} prefix {} nexthop {} label {} afi {}",
1836                     rd, prefix, nextHop, label, afi);
1837             // TODO: modify addFibEntryToDS signature
1838             List<String> nextHopList = Collections.singletonList(nextHop);
1839             fibDSWriter.addFibEntryToDS(rd, prefix + "/" + plen, nextHopList, encapType, label, l3vni,
1840                                         routermac, RouteOrigin.BGP);
1841             LOG.info("ADD: Added Fib entry rd {} prefix {} nexthop {} label {}", rd, prefix, nextHop, label);
1842             String vpnName = bgpUtil.getVpnNameFromRd(rd);
1843             if (vpnName != null) {
1844                 vpnLinkService.leakRouteIfNeeded(vpnName, prefix, nextHopList, label, RouteOrigin.BGP,
1845                                                  NwConstants.ADD_FLOW);
1846             }
1847         }
1848     }
1849
1850     public void onUpdateWithdrawRoute(protocol_type protocolType, String rd, String prefix, int plen, String nextHop,
1851             String macaddress) {
1852         long vni = 0L;
1853         boolean macupdate = false;
1854         if (protocolType.equals(protocol_type.PROTOCOL_EVPN)) {
1855             VpnInstanceOpDataEntry vpnInstanceOpDataEntry = bgpUtil.getVpnInstanceOpData(rd);
1856             if (vpnInstanceOpDataEntry != null) {
1857                 vni = vpnInstanceOpDataEntry.getL3vni();
1858                 if (vpnInstanceOpDataEntry.getType() == VpnInstanceOpDataEntry.Type.L2) {
1859                     LOG.debug("Got RT2 withdraw for RD %s from tep %s with mac %s remote RD %s",
1860                             vpnInstanceOpDataEntry.getVpnInstanceName(), vni, nextHop, macaddress, rd);
1861                     deleteTepfromElanDS(rd, nextHop, macaddress);
1862                     LOG.debug("For rd %s. skipping fib update", rd);
1863                     macupdate = true;
1864                 }
1865             } else {
1866                 LOG.error("No corresponding vpn instance found for rd {}. Aborting.", rd);
1867                 return;
1868             }
1869         }
1870         if (macupdate) {
1871             LOG.info("Removing Mac Fib entry rd {} mac{} nexthop {} ", rd, macaddress, nextHop);
1872             fibDSWriter.removeMacEntryFromDS(rd, macaddress);
1873             LOG.info("Removed Mac Fib entry rd {} prefix {} nexthop {} ", rd, macaddress, nextHop);
1874         } else {
1875             LOG.info("REMOVE: Removing Fib entry rd {} prefix {}", rd, prefix);
1876             fibDSWriter.removeOrUpdateFibEntryFromDS(rd, prefix + "/" + plen, nextHop);
1877             LOG.info("REMOVE: Removed Fib entry rd {} prefix {}", rd, prefix);
1878         }
1879     }
1880
1881     //TODO: below function is for testing purpose with cli
1882     public void onUpdateWithdrawRoute(String rd, String prefix, int plen, String nexthop) {
1883         LOG.debug("Route del ** {} ** {}/{} ", rd, prefix, plen);
1884         fibDSWriter.removeOrUpdateFibEntryFromDS(rd, prefix + "/" + plen, nexthop);
1885         String vpnName = bgpUtil.getVpnNameFromRd(rd);
1886         if (vpnName != null) {
1887             vpnLinkService.leakRouteIfNeeded(vpnName, prefix, null /*nextHopList*/, 0 /*INVALID_LABEL*/,
1888                                              RouteOrigin.BGP, NwConstants.DEL_FLOW);
1889         }
1890     }
1891
1892     private static boolean isRouteModified(int label, Long labelInStaleMap) {
1893         return labelInStaleMap != null && !labelInStaleMap.equals(Long.valueOf(label));
1894     }
1895
1896     static class ReplayNbr {
1897         Neighbors nbr;
1898         boolean shouldRetry = false;
1899
1900         public Neighbors getNbr() {
1901             return nbr;
1902         }
1903
1904         public boolean isShouldRetry() {
1905             return shouldRetry;
1906         }
1907
1908         public void setShouldRetry(boolean retryNbr) {
1909             this.shouldRetry = retryNbr;
1910         }
1911
1912         ReplayNbr(Neighbors nbr, boolean shouldRetry) {
1913             this.nbr = nbr;
1914             this.shouldRetry = shouldRetry;
1915         }
1916     }
1917
1918     private static boolean replayNbrConfig(List<Neighbors> neighbors, BgpRouter br) {
1919         if (neighbors == null || neighbors.isEmpty()) {
1920             LOG.error("Replaying nbr configuration, received NULL list ");
1921             return true;
1922         }
1923
1924         List<ReplayNbr> replayNbrList = new ArrayList<>();
1925         for (Neighbors nbr : neighbors) {
1926             if (nbr != null) {
1927                 replayNbrList.add(new ReplayNbr(nbr, true));
1928             }
1929         }
1930         final int numberOfNbrRetries = 3;
1931         RetryOnException nbrRetry = new RetryOnException(numberOfNbrRetries);
1932         do {
1933             for (ReplayNbr replayNbr : replayNbrList) {
1934                 if (!replayNbr.isShouldRetry()) {
1935                     continue;
1936                 }
1937                 boolean replayDone = false;
1938                 LOG.debug("Replaying addNbr {}", replayNbr.getNbr().getAddress().getValue());
1939                 replayDone = false;
1940                 try {
1941                     final String md5password = extractMd5Secret(replayNbr.getNbr());
1942                     br.addNeighbor(replayNbr.getNbr().getAddress().getValue(),
1943                             replayNbr.getNbr().getRemoteAs().longValue(), md5password);
1944                     UpdateSource us = replayNbr.getNbr().getUpdateSource();
1945                     if (us != null) {
1946                         LOG.debug("Replaying updatesource along with nbr: {} US-ip: {} to peer {}",
1947                                 replayNbr.getNbr().getAddress().getValue(),
1948                                 us.getSourceIp().getValue(),
1949                                 us.getPeerIp().getValue());
1950                         br.addUpdateSource(us.getPeerIp().getValue(),
1951                                 us.getSourceIp().getValue());
1952                     }
1953                     replayDone = true;
1954                 } catch (TException | BgpRouterException eNbr) {
1955                     LOG.debug("Replaying addNbr {}, exception: ", replayNbr.getNbr().getAddress().getValue(), eNbr);
1956                 }
1957                 boolean replaySuccess = true;
1958                 replaySuccess = replaySuccess && replayDone;
1959                 LOG.debug("Replay addNbr {} successful", replayNbr.getNbr().getAddress().getValue());
1960
1961                 //Update Source handling
1962                 UpdateSource us = replayNbr.getNbr().getUpdateSource();
1963                 if (replayDone == false && us != null) {
1964                     LOG.debug("Replaying updatesource {} to peer {}", us.getSourceIp().getValue(),
1965                             us.getPeerIp().getValue());
1966                     replayDone = false;
1967                     try {
1968                         br.addUpdateSource(us.getPeerIp().getValue(),
1969                                 us.getSourceIp().getValue());
1970                         replayDone = true;
1971                     } catch (TException | BgpRouterException eUs) {
1972                         LOG.debug("Replaying UpdateSource for Nbr {}, exception:",
1973                                 replayNbr.getNbr().getAddress().getValue(), eUs);
1974                     }
1975                     LOG.debug("Replay updatesource {} successful", us.getSourceIp().getValue());
1976                     replaySuccess = replaySuccess && replayDone;
1977                 }
1978                 //Ebgp Multihope
1979                 EbgpMultihop en = replayNbr.getNbr().getEbgpMultihop();
1980                 if (en != null) {
1981                     replayDone = false;
1982                     try {
1983                         br.addEbgpMultihop(en.getPeerIp().getValue(),
1984                                 en.getNhops().intValue());
1985                         replayDone = true;
1986                     } catch (TException | BgpRouterException eEbgpMhop) {
1987                         LOG.debug("Replaying EbgpMultihop for Nbr {}, exception: ",
1988                                 replayNbr.getNbr().getAddress().getValue(), eEbgpMhop);
1989                     }
1990                     replaySuccess = replaySuccess && replayDone;
1991                 }
1992
1993                 //afs
1994                 List<AddressFamilies> afs = replayNbr.getNbr().getAddressFamilies();
1995                 if (afs != null) {
1996                     for (AddressFamilies af : afs) {
1997                         af_afi afi = af_afi.findByValue(af.getAfi().intValue());
1998                         af_safi safi = af_safi.findByValue(af.getSafi().intValue());
1999                         replayDone = false;
2000                         try {
2001                             br.addAddressFamily(af.getPeerIp().getValue(), afi, safi);
2002                             replayDone = true;
2003                         } catch (TException | BgpRouterException eAFs) {
2004                             LOG.debug("Replaying AddressFamily for Nbr {}, exception:",
2005                                     replayNbr.getNbr().getAddress().getValue(), eAFs);
2006                         }
2007                         replaySuccess = replaySuccess && replayDone;
2008                     }
2009                 }
2010                 //replay is success --> no need to replay this nbr in next iteration.
2011                 replayNbr.setShouldRetry(replaySuccess ? false : true);
2012             }
2013         } while (nbrRetry.decrementAndRetry());
2014         boolean replaySuccess = true;
2015         for (ReplayNbr replayNbr : replayNbrList) {
2016             replaySuccess = replaySuccess && !replayNbr.isShouldRetry();
2017         }
2018         return replaySuccess;
2019     }
2020
2021     public String getConfigHost() {
2022         if (config == null) {
2023             return hostStartup;
2024         }
2025         ConfigServer ts = config.getConfigServer();
2026         return ts == null ? hostStartup : ts.getHost().getValue();
2027     }
2028
2029     public int getConfigPort() {
2030         if (config == null) {
2031             return Integer.parseInt(portStartup);
2032         }
2033         ConfigServer ts = config.getConfigServer();
2034         return ts == null ? Integer.parseInt(portStartup) :
2035                 ts.getPort().intValue();
2036     }
2037
2038     public Bgp getConfig() {
2039         AtomicInteger bgpDSretryCount = new AtomicInteger(DS_RETRY_COUNT);
2040         while (0 != bgpDSretryCount.decrementAndGet()) {
2041             try {
2042                 return SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION,
2043                         InstanceIdentifier.create(Bgp.class)).orNull();
2044             } catch (ReadFailedException e) {
2045                 //Config DS may not be up, so sleep for 1 second and retry
2046                 LOG.debug("failed to get bgp config, may be DS is yet in consistent state(?)", e);
2047                 try {
2048                     Thread.sleep(WAIT_TIME_BETWEEN_EACH_TRY_MILLIS);
2049                 } catch (InterruptedException timerEx) {
2050                     LOG.debug("WAIT_TIME_BETWEEN_EACH_TRY_MILLIS, Timer got interrupted while waiting for"
2051                             + "config DS availability", timerEx);
2052                 }
2053             }
2054         }
2055         LOG.error("failed to get bgp config");
2056         return null;
2057     }
2058
2059     @SuppressWarnings("checkstyle:IllegalCatch")
2060     public synchronized boolean replay() throws InterruptedException, TimeoutException, ExecutionException {
2061         boolean replaySucceded = true;
2062         String host = getConfigHost();
2063         int port = getConfigPort();
2064         LOG.error("connecting  to bgp host {} ", host);
2065         boolean res = bgpRouter.connect(host, port);
2066         if (!res) {
2067             String msg = "Cannot connect to BGP config server at " + host + ":" + port;
2068             if (config != null) {
2069                 msg += "; Configuration Replay aborted";
2070             }
2071             LOG.error(msg);
2072             return replaySucceded;
2073         }
2074         config = getConfig();
2075         if (config == null) {
2076             LOG.error("bgp config is empty nothing to push to bgp");
2077             return replaySucceded;
2078         }
2079         BgpRouter br = bgpRouter;
2080         AsId asId = config.getAsId();
2081         if (asId == null) {
2082             LOG.error("bgp as-id is null");
2083             return replaySucceded;
2084         }
2085         long asNum = asId.getLocalAs();
2086         IpAddress routerId = asId.getRouterId();
2087         String rid = routerId == null ? "" : new String(routerId.getValue());
2088         int stalepathTime = (int) getStalePathtime(RESTART_DEFAULT_GR, config.getAsId());
2089         boolean announceFbit = true;
2090         boolean replayDone = false;
2091         final int numberOfStartBgpRetries = 3;
2092         RetryOnException startBgpRetry = new RetryOnException(numberOfStartBgpRetries);
2093         do {
2094             try {
2095                 LOG.debug("Replaying BGPConfig ");
2096                 br.startBgp(asNum, rid, stalepathTime, announceFbit);
2097                 LOG.debug("Replay BGPConfig successful");
2098                 replayDone = true;
2099                 break;
2100             } catch (BgpRouterException bre) {
2101                 if (bre.getErrorCode() == BgpRouterException.BGP_ERR_ACTIVE) {
2102                     LOG.debug("Starting the routesync for exception", bre);
2103                     startBgpRetry.errorOccured();
2104                     if (!startBgpRetry.shouldRetry()) {
2105                         LOG.debug("starting route sync for BgpRouter exception");
2106                         doRouteSync();
2107                     }
2108                 } else {
2109                     LOG.error("Replay: startBgp() received exception error {} : ",
2110                             bre.getErrorCode(), bre);
2111                     startBgpRetry.errorOccured();
2112                 }
2113             } catch (TApplicationException tae) {
2114                 if (tae.getType() == BgpRouterException.BGP_ERR_ACTIVE) {
2115                     LOG.debug("Starting the routesync for exception", tae);
2116                     startBgpRetry.errorOccured();
2117                     if (!startBgpRetry.shouldRetry()) {
2118                         LOG.debug("starting route sync for Thrift BGP_ERR_ACTIVE exception");
2119                         doRouteSync();
2120                     }
2121                 } else if (tae.getType() == BgpRouterException.BGP_ERR_COMMON_FAILURE) {
2122                     LOG.debug("Starting the routesync for AS-ID started exception", tae);
2123                     startBgpRetry.errorOccured();
2124                     if (!startBgpRetry.shouldRetry()) {
2125                         LOG.debug("starting route sync for Thrift BGP_ERR_COMMON_FAILURE exception");
2126                         doRouteSync();
2127                     }
2128                 } else {
2129                     LOG.error("Replay: startBgp() received exception type {}: ",
2130                             tae.getType(), tae);
2131                     startBgpRetry.errorOccured();
2132                 }
2133             } catch (Exception e) {
2134                 //not unusual. We may have restarted & BGP is already on
2135                 LOG.error("Replay:startBgp() received exception: ", e);
2136                 startBgpRetry.errorOccured();
2137             }
2138         } while (startBgpRetry.shouldRetry());
2139
2140         replaySucceded = replayDone;
2141
2142         startBgpCountersTask();
2143         startBgpAlarmsTask();
2144
2145         /*
2146          * commenting this due to a bug with QBGP. Will uncomment once QBGP fix is done.
2147          * This wont have any functional impacts
2148          */
2149         //try {
2150         //    br.delayEOR(delayEorSeconds);
2151         //} catch (TException | BgpRouterException e) {
2152         //    LOG.error("Replay: delayEOR() number of seconds to wait for EOR from ODL:", e);
2153         //}
2154
2155         List<Neighbors> neighbors = config.getNeighbors();
2156         if (neighbors != null) {
2157             LOG.error("configuring existing Neighbors present for replay total neighbors {}", neighbors.size());
2158             boolean neighborConfigReplayResult = replayNbrConfig(neighbors, br);
2159             if (neighborConfigReplayResult == false) {
2160                 replaySucceded = false;
2161             }
2162         } else {
2163             LOG.error("no Neighbors present for replay config ");
2164         }
2165
2166         Logging logging = config.getLogging();
2167         if (logging != null) {
2168             try {
2169                 br.setLogging(logging.getFile(), logging.getLevel());
2170             } catch (TException | BgpRouterException e) {
2171                 LOG.error("Replay:setLogging() received exception", e);
2172             }
2173         }
2174
2175         GracefulRestart gracefulRestart = config.getGracefulRestart();
2176         if (gracefulRestart != null) {
2177             try {
2178                 br.addGracefulRestart(gracefulRestart.getStalepathTime().intValue());
2179             } catch (TException | BgpRouterException e) {
2180                 LOG.error("Replay:addGr() received exception", e);
2181             }
2182         }
2183
2184         List<Vrfs> vrfs = config.getVrfs();
2185         if (vrfs == null) {
2186             vrfs = new ArrayList<>();
2187         }
2188         for (Vrfs vrf : vrfs) {
2189             for (AddressFamiliesVrf adf : vrf.getAddressFamiliesVrf()) {
2190                 try {
2191                     br.addVrf(BgpUtil.getLayerType(adf), vrf.getRd(), vrf.getImportRts(),
2192                             vrf.getExportRts());
2193                 } catch (TException | BgpRouterException e) {
2194                     LOG.error("Replay:addVrf() received exception", e);
2195                 }
2196             }
2197         }
2198
2199         List<Networks> ln = config.getNetworks();
2200         if (ln != null) {
2201             for (Networks net : ln) {
2202                 String rd = net.getRd();
2203                 String pfxlen = net.getPrefixLen();
2204                 String nh = net.getNexthop().getValue();
2205                 Long label = net.getLabel();
2206                 int lbl = label == null ? 0 : label.intValue();
2207                 int l3vni = net.getL3vni() == null ? 0 : net.getL3vni().intValue();
2208                 int l2vni = net.getL2vni() == null ? 0 : net.getL2vni().intValue();
2209                 if (rd == null && lbl > 0) {
2210                     //LU prefix is being deleted.
2211                     rd = Integer.toString(lbl);
2212                 }
2213
2214                 BgpControlPlaneType protocolType = net.getBgpControlPlaneType();
2215                 int ethernetTag = net.getEthtag().intValue();
2216                 String esi = net.getEsi();
2217                 String macaddress = net.getMacaddress();
2218                 EncapType encapType = net.getEncapType();
2219                 String routerMac = net.getRoutermac();
2220
2221                 try {
2222                     br.addPrefix(rd, pfxlen, nh, lbl, l3vni, l2vni,
2223                             BgpUtil.convertToThriftProtocolType(protocolType),
2224                             ethernetTag, esi, macaddress, BgpUtil.convertToThriftEncapType(encapType), routerMac);
2225                 } catch (TException | BgpRouterException e) {
2226                     LOG.error("Replay:addPfx() received exception", e);
2227                 }
2228             }
2229         }
2230
2231
2232         List<Multipath> multipaths = config.getMultipath();
2233
2234         if (multipaths != null) {
2235             for (Multipath multipath : multipaths) {
2236                 if (multipath != null) {
2237                     af_afi afi = af_afi.findByValue(multipath.getAfi().intValue());
2238                     af_safi safi = af_safi.findByValue(multipath.getSafi().intValue());
2239
2240                     try {
2241                         if (multipath.isMultipathEnabled()) {
2242                             br.enableMultipath(afi, safi);
2243                         } else {
2244                             br.disableMultipath(afi, safi);
2245                         }
2246                     } catch (TException | BgpRouterException e) {
2247                         LOG.info("Replay:multipaths() received exception: \"" + e + "\"");
2248                     }
2249                 }
2250             }
2251         }
2252         List<VrfMaxpath> vrfMaxpaths = config.getVrfMaxpath();
2253         if (vrfMaxpaths != null) {
2254             for (VrfMaxpath vrfMaxpath : vrfMaxpaths) {
2255                 try {
2256                     br.multipaths(vrfMaxpath.getRd(), vrfMaxpath.getMaxpaths());
2257                 } catch (TException | BgpRouterException e) {
2258                     LOG.info("Replay:vrfMaxPath() received exception: \"" + e + "\"");
2259                 }
2260             }
2261         }
2262
2263         //send End of Rib Marker to Qthriftd.
2264         final int numberOfEORRetries = 3;
2265         replayDone = false;
2266         RetryOnException eorRetry = new RetryOnException(numberOfEORRetries);
2267         do {
2268             try {
2269                 br.sendEOR();
2270                 LOG.debug("Replay sendEOR {} successful");
2271                 replayDone = true;
2272                 break;
2273             } catch (Exception e) {
2274                 eorRetry.errorOccured();
2275                 LOG.error("Replay:sedEOR() received exception:", e);
2276             }
2277         } while (eorRetry.shouldRetry());
2278
2279         return replaySucceded && replayDone;
2280     }
2281
2282     private <T extends DataObject> void update(InstanceIdentifier<T> iid, T dto) {
2283         bgpUtil.update(iid, dto);
2284     }
2285
2286     private <T extends DataObject> void delete(InstanceIdentifier<T> iid) {
2287         bgpUtil.delete(iid);
2288     }
2289
2290     public void startConfig(String bgpHost, int thriftPort) {
2291         InstanceIdentifier.InstanceIdentifierBuilder<ConfigServer> iib =
2292                 InstanceIdentifier.builder(Bgp.class).child(ConfigServer.class);
2293         InstanceIdentifier<ConfigServer> iid = iib.build();
2294         Ipv4Address ipAddr = new Ipv4Address(bgpHost);
2295         ConfigServer dto = new ConfigServerBuilder().setHost(ipAddr)
2296                 .setPort((long) thriftPort).build();
2297         update(iid, dto);
2298     }
2299
2300     public void startBgp(long as, String routerId, int spt, boolean fbit) {
2301         IpAddress rid = routerId == null ? null : new IpAddress(routerId.toCharArray());
2302         Long staleTime = (long) spt;
2303         InstanceIdentifier.InstanceIdentifierBuilder<AsId> iib =
2304                 InstanceIdentifier.builder(Bgp.class).child(AsId.class);
2305         InstanceIdentifier<AsId> iid = iib.build();
2306         AsId dto = new AsIdBuilder().setLocalAs(as)
2307                 .setRouterId(rid)
2308                 .setStalepathTime(staleTime)
2309                 .setAnnounceFbit(fbit).build();
2310         update(iid, dto);
2311     }
2312
2313     public void addLogging(String fileName, String logLevel) {
2314         InstanceIdentifier.InstanceIdentifierBuilder<Logging> iib =
2315                 InstanceIdentifier.builder(Bgp.class).child(Logging.class);
2316         InstanceIdentifier<Logging> iid = iib.build();
2317         Logging dto = new LoggingBuilder().setFile(fileName)
2318                 .setLevel(logLevel).build();
2319         update(iid, dto);
2320     }
2321
2322     public void addGracefulRestart(int staleTime) {
2323         InstanceIdentifier.InstanceIdentifierBuilder<GracefulRestart> iib =
2324                 InstanceIdentifier.builder(Bgp.class).child(GracefulRestart.class);
2325         InstanceIdentifier<GracefulRestart> iid = iib.build();
2326         GracefulRestart dto = new GracefulRestartBuilder()
2327                 .setStalepathTime((long) staleTime).build();
2328         update(iid, dto);
2329     }
2330
2331     public void addNeighbor(
2332             String nbrIp, long remoteAs, @Nullable final TcpMd5SignaturePasswordType md5Secret) {
2333         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2334         InstanceIdentifier.InstanceIdentifierBuilder<Neighbors> iib =
2335                 InstanceIdentifier.builder(Bgp.class)
2336                         .child(Neighbors.class, new NeighborsKey(nbrAddr));
2337         InstanceIdentifier<Neighbors> iid = iib.build();
2338         TcpSecurityOption tcpSecOption = null;
2339         if (md5Secret != null) {
2340             tcpSecOption = new TcpMd5SignatureOptionBuilder().setTcpMd5SignaturePassword(md5Secret).build();
2341         } // else let tcpSecOption be null
2342         Neighbors dto = new NeighborsBuilder().setAddress(nbrAddr)
2343                 .setRemoteAs(remoteAs).setTcpSecurityOption(tcpSecOption).build();
2344         update(iid, dto);
2345     } // public addNeighbor(nbrIp, remoteAs, md5Secret)
2346
2347     public void addUpdateSource(String nbrIp, String srcIp) {
2348         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2349         Ipv4Address srcAddr = new Ipv4Address(srcIp);
2350         InstanceIdentifier.InstanceIdentifierBuilder<UpdateSource> iib =
2351                 InstanceIdentifier.builder(Bgp.class)
2352                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2353                         .child(UpdateSource.class);
2354         InstanceIdentifier<UpdateSource> iid = iib.build();
2355         UpdateSource dto = new UpdateSourceBuilder().setPeerIp(nbrAddr)
2356                 .setSourceIp(srcAddr).build();
2357         update(iid, dto);
2358     }
2359
2360     public void addEbgpMultihop(String nbrIp, int hops) {
2361         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2362         InstanceIdentifier.InstanceIdentifierBuilder<EbgpMultihop> iib =
2363                 InstanceIdentifier.builder(Bgp.class)
2364                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2365                         .child(EbgpMultihop.class);
2366         InstanceIdentifier<EbgpMultihop> iid = iib.build();
2367         EbgpMultihop dto = new EbgpMultihopBuilder().setPeerIp(nbrAddr)
2368                 .setNhops((long) hops).build();
2369         update(iid, dto);
2370     }
2371
2372     public void addAddressFamily(String nbrIp, int afi, int safi) {
2373         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2374         InstanceIdentifier.InstanceIdentifierBuilder<AddressFamilies> iib =
2375                 InstanceIdentifier.builder(Bgp.class)
2376                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2377                         .child(AddressFamilies.class, new AddressFamiliesKey((long) afi, (long) safi));
2378         InstanceIdentifier<AddressFamilies> iid = iib.build();
2379         AddressFamilies dto = new AddressFamiliesBuilder().setPeerIp(nbrAddr)
2380                 .setAfi((long) afi).setSafi((long) safi).build();
2381         update(iid, dto);
2382     }
2383
2384     public void addPrefix(String rd, String macAddress, String pfx, List<String> nhList,
2385               VrfEntry.EncapType encapType, long lbl, long l3vni, long l2vni, String gatewayMac) {
2386         for (String nh : nhList) {
2387             Ipv4Address nexthop = nh != null ? new Ipv4Address(nh) : null;
2388             Long label = lbl;
2389             InstanceIdentifier<Networks> iid = InstanceIdentifier.builder(Bgp.class)
2390                     .child(Networks.class, new NetworksKey(pfx, rd)).build();
2391             NetworksBuilder networksBuilder = new NetworksBuilder().setRd(rd).setPrefixLen(pfx).setNexthop(nexthop)
2392                                                 .setLabel(label).setEthtag(BgpConstants.DEFAULT_ETH_TAG);
2393             buildVpnEncapSpecificInfo(networksBuilder, encapType, label, l3vni, l2vni, macAddress, gatewayMac);
2394             update(iid, networksBuilder.build());
2395         }
2396     }
2397
2398     private static void buildVpnEncapSpecificInfo(NetworksBuilder builder, VrfEntry.EncapType encapType, long label,
2399                                                   long l3vni, long l2vni, String macAddress, String gatewayMac) {
2400         if (encapType.equals(VrfEntry.EncapType.Mplsgre)) {
2401             builder.setLabel(label).setBgpControlPlaneType(BgpControlPlaneType.PROTOCOLL3VPN)
2402                     .setEncapType(EncapType.GRE);
2403         } else {
2404             builder.setL3vni(l3vni).setL2vni(l2vni).setMacaddress(macAddress).setRoutermac(gatewayMac)
2405                     .setBgpControlPlaneType(BgpControlPlaneType.PROTOCOLEVPN).setEncapType(EncapType.VXLAN);
2406         }
2407     }
2408
2409     // TODO: add LayerType as arg - supports command
2410     public void addVrf(String rd, List<String> irts, List<String> erts, AddressFamily addressFamily) {
2411         Vrfs vrf = bgpUtil.getVrfFromRd(rd);
2412         List<AddressFamiliesVrf> adfList = new ArrayList<>(1);
2413         if (vrf != null) {
2414             adfList = vrf.getAddressFamiliesVrf();
2415         }
2416         AddressFamiliesVrfBuilder adfBuilder = new AddressFamiliesVrfBuilder();
2417         if (addressFamily.equals(AddressFamily.IPV4)) {
2418             adfBuilder.setAfi((long) af_afi.AFI_IP.getValue());
2419             adfBuilder.setSafi((long) af_safi.SAFI_MPLS_VPN.getValue());
2420         } else if (addressFamily.equals(AddressFamily.IPV6)) {
2421             adfBuilder.setAfi((long) af_afi.AFI_IPV6.getValue());
2422             adfBuilder.setSafi((long) af_safi.SAFI_MPLS_VPN.getValue());
2423         } else if (addressFamily.equals(AddressFamily.L2VPN)) {
2424             adfBuilder.setAfi((long) af_afi.AFI_IP.getValue());
2425             adfBuilder.setSafi((long) af_safi.SAFI_EVPN.getValue());
2426         }
2427         AddressFamiliesVrf adf = adfBuilder.build();
2428         adfList.add(adf);
2429         InstanceIdentifier.InstanceIdentifierBuilder<Vrfs> iib = InstanceIdentifier.builder(Bgp.class)
2430                 .child(Vrfs.class, new VrfsKey(rd));
2431         InstanceIdentifier<Vrfs> iid = iib.build();
2432         Vrfs dto = new VrfsBuilder().setRd(rd).setImportRts(irts)
2433             .setExportRts(erts).setAddressFamiliesVrf(adfList).build();
2434
2435         List<AddressFamiliesVrf> listAdFamilies = mapNewAdFamily.get(rd);
2436         if (listAdFamilies != null) {
2437             listAdFamilies.add(adf);
2438         } else {
2439             mapNewAdFamily.put(rd, adfList);
2440         }
2441
2442         try {
2443             SingleTransactionDataBroker.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, iid, dto);
2444         } catch (TransactionCommitFailedException e) {
2445             LOG.error("Error adding VRF to datastore", e);
2446             throw new RuntimeException(e);
2447         }
2448     }
2449
2450     public void stopConfig() {
2451         InstanceIdentifier.InstanceIdentifierBuilder<ConfigServer> iib =
2452                 InstanceIdentifier.builder(Bgp.class).child(ConfigServer.class);
2453         InstanceIdentifier<ConfigServer> iid = iib.build();
2454         delete(iid);
2455     }
2456
2457     public void stopBgp() {
2458         InstanceIdentifier.InstanceIdentifierBuilder<AsId> iib =
2459                 InstanceIdentifier.builder(Bgp.class).child(AsId.class);
2460         InstanceIdentifier<AsId> iid = iib.build();
2461         delete(iid);
2462     }
2463
2464     public void delLogging() {
2465         InstanceIdentifier.InstanceIdentifierBuilder<Logging> iib =
2466                 InstanceIdentifier.builder(Bgp.class).child(Logging.class);
2467         InstanceIdentifier<Logging> iid = iib.build();
2468         delete(iid);
2469     }
2470
2471     public void delGracefulRestart() {
2472         InstanceIdentifier.InstanceIdentifierBuilder<GracefulRestart> iib =
2473                 InstanceIdentifier.builder(Bgp.class)
2474                         .child(GracefulRestart.class);
2475         InstanceIdentifier<GracefulRestart> iid = iib.build();
2476         delete(iid);
2477     }
2478
2479     public void delNeighbor(String nbrIp) {
2480         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2481         InstanceIdentifier.InstanceIdentifierBuilder<Neighbors> iib =
2482                 InstanceIdentifier.builder(Bgp.class)
2483                         .child(Neighbors.class, new NeighborsKey(nbrAddr));
2484         InstanceIdentifier<Neighbors> iid = iib.build();
2485         delete(iid);
2486     }
2487
2488     public void delUpdateSource(String nbrIp) {
2489         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2490         InstanceIdentifier.InstanceIdentifierBuilder<UpdateSource> iib =
2491                 InstanceIdentifier.builder(Bgp.class)
2492                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2493                         .child(UpdateSource.class);
2494         InstanceIdentifier<UpdateSource> iid = iib.build();
2495         delete(iid);
2496     }
2497
2498     public void delEbgpMultihop(String nbrIp) {
2499         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2500         InstanceIdentifier.InstanceIdentifierBuilder<EbgpMultihop> iib =
2501                 InstanceIdentifier.builder(Bgp.class)
2502                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2503                         .child(EbgpMultihop.class);
2504         InstanceIdentifier<EbgpMultihop> iid = iib.build();
2505         delete(iid);
2506     }
2507
2508     public void delAddressFamily(String nbrIp, int afi, int safi) {
2509         Ipv4Address nbrAddr = new Ipv4Address(nbrIp);
2510         InstanceIdentifier.InstanceIdentifierBuilder<AddressFamilies> iib =
2511                 InstanceIdentifier.builder(Bgp.class)
2512                         .child(Neighbors.class, new NeighborsKey(nbrAddr))
2513                         .child(AddressFamilies.class, new AddressFamiliesKey((long) afi, (long) safi));
2514         InstanceIdentifier<AddressFamilies> iid = iib.build();
2515         delete(iid);
2516     }
2517
2518     public void delPrefix(String rd, String pfx) {
2519         InstanceIdentifier.InstanceIdentifierBuilder<Networks> iib =
2520                 InstanceIdentifier.builder(Bgp.class)
2521                         .child(Networks.class, new NetworksKey(pfx, rd));
2522         InstanceIdentifier<Networks> iid = iib.build();
2523         delete(iid);
2524     }
2525
2526     public boolean delVrf(String rd, AddressFamily addressFamily) {
2527         if (addressFamily == null) {
2528             LOG.error("delVrf: vrf {}, addressFamily invalid", rd);
2529             return false;
2530         }
2531         AddressFamiliesVrfBuilder adfBuilder = new AddressFamiliesVrfBuilder();
2532         if (addressFamily.equals(AddressFamily.IPV4)) {
2533             adfBuilder.setAfi((long) af_afi.AFI_IP.getValue());
2534             adfBuilder.setSafi((long) af_safi.SAFI_MPLS_VPN.getValue());
2535         } else if (addressFamily.equals(AddressFamily.IPV6)) {
2536             adfBuilder.setAfi((long) af_afi.AFI_IPV6.getValue());
2537             adfBuilder.setSafi((long) af_safi.SAFI_MPLS_VPN.getValue());
2538         } else if (addressFamily.equals(AddressFamily.L2VPN)) {
2539             adfBuilder.setAfi((long) af_afi.AFI_IP.getValue());
2540             adfBuilder.setSafi((long) af_safi.SAFI_EVPN.getValue());
2541         }
2542         Vrfs vrfOriginal = bgpUtil.getVrfFromRd(rd);
2543         if (vrfOriginal == null) {
2544             LOG.error("delVrf: no vrf with existing rd {}. step aborted", rd);
2545             return false;
2546         }
2547
2548         InstanceIdentifier.InstanceIdentifierBuilder<Vrfs> iib =
2549                 InstanceIdentifier.builder(Bgp.class)
2550                         .child(Vrfs.class, new VrfsKey(rd));
2551
2552         InstanceIdentifier<Vrfs> iid = iib.build();
2553
2554         @SuppressWarnings("static-access")
2555         InstanceIdentifier<Bgp> iid6 =  iid.builder(Bgp.class).build()
2556                 .child(Multipath.class, new MultipathKey(adfBuilder.getAfi(), adfBuilder.getSafi())).create(Bgp.class);
2557         InstanceIdentifierBuilder<Vrfs> iib3 = iid6.child(Vrfs.class, new VrfsKey(rd)).builder();
2558         InstanceIdentifier<Vrfs> iidFinal = iib3.build();
2559
2560         //** update or delete the vrfs with the rest of AddressFamilies already present in the last list
2561         AddressFamiliesVrf adfToDel = adfBuilder.build();
2562         List<AddressFamiliesVrf> adfListOriginal = vrfOriginal.getAddressFamiliesVrf() == null
2563                 ? new ArrayList<>() : vrfOriginal.getAddressFamiliesVrf();
2564         List<AddressFamiliesVrf> adfListToRemoveFromOriginal = new ArrayList<>();
2565         adfListOriginal.forEach(adf -> {
2566             if (adf.equals(adfToDel)) {
2567                 adfListToRemoveFromOriginal.add(adfToDel);
2568                 return;
2569             }
2570         });
2571         for (AddressFamiliesVrf adfToRemove : adfListToRemoveFromOriginal) {
2572             adfListOriginal.remove(adfToRemove);
2573             try {
2574                 SingleTransactionDataBroker.syncWrite(dataBroker,
2575                         LogicalDatastoreType.CONFIGURATION, iid, vrfOriginal);
2576             } catch (TransactionCommitFailedException e) {
2577                 LOG.error("delVrf: Error updating VRF to datastore", e);
2578                 throw new RuntimeException(e);
2579             }
2580         }
2581         if (adfListOriginal.isEmpty()) {
2582             delete(iidFinal);
2583             return true;
2584         }
2585         // not all is removed
2586         return false;
2587     }
2588
2589     public void setMultipathStatus(af_afi afi, af_safi safi, boolean enable) {
2590         long lafi = afi.getValue();
2591         long lsafi = safi.getValue();
2592
2593         InstanceIdentifier.InstanceIdentifierBuilder<Multipath> iib =
2594                 InstanceIdentifier
2595                         .builder(Bgp.class)
2596                         .child(Multipath.class,
2597                                 new MultipathKey(Long.valueOf(afi.getValue()), Long.valueOf(safi.getValue())));
2598
2599         Multipath dto = new MultipathBuilder().setAfi(lafi).setSafi(lsafi).setMultipathEnabled(enable).build();
2600         update(iib.build(), dto);
2601     }
2602
2603     public void multipaths(String rd, int maxpath) {
2604         InstanceIdentifier.InstanceIdentifierBuilder<VrfMaxpath> iib =
2605                 InstanceIdentifier
2606                         .builder(Bgp.class)
2607                         .child(VrfMaxpath.class, new VrfMaxpathKey(rd));
2608
2609         VrfMaxpath dto = new VrfMaxpathBuilder().setRd(rd).setMaxpaths(maxpath).build();
2610         update(iib.build(), dto);
2611     }
2612
2613     /*
2614     * Remove Stale Marked Routes after timer expiry.
2615     */
2616     private class RouteCleanup implements Callable<Integer> {
2617
2618         @Override
2619         public Integer call() {
2620             totalCleared = 0;
2621             try {
2622                 if (staledFibEntriesMap.isEmpty()) {
2623                     LOG.info("BGP: RouteCleanup timertask tirggered but STALED FIB MAP is EMPTY");
2624                 } else {
2625                     for (String rd : staledFibEntriesMap.keySet()) {
2626                         if (Thread.interrupted()) {
2627                             return 0;
2628                         }
2629                         Map<String, Long> map = staledFibEntriesMap.get(rd);
2630                         if (map != null) {
2631                             for (String key : map.keySet()) {
2632                                 if (Thread.interrupted()) {
2633                                     return 0;
2634                                 }
2635                                 String prefix = extractPrefix(key);
2636                                 String nextHop = extractNextHop(key);
2637                                 totalCleared++;
2638                                 LOG.debug("BGP: RouteCleanup deletePrefix called for : rd:{}, prefix{}, nextHop:{}",
2639                                         rd, prefix, nextHop);
2640                                 fibDSWriter.removeOrUpdateFibEntryFromDS(rd, prefix, nextHop);
2641                             }
2642                         }
2643                     }
2644                 }
2645             } finally {
2646                 staledFibEntriesMap.clear();
2647             }
2648             LOG.error("cleared {} stale routes after bgp restart", totalCleared);
2649             return 0;
2650         }
2651     }
2652
2653     /*
2654      * BGP restart scenario, ODL-BGP manager was/is running.
2655      * On re-sync notification, Get a copy of FIB database.
2656      */
2657     public void createStaleFibMap() {
2658         totalStaledCount = 0;
2659         try {
2660             staledFibEntriesMap.clear();
2661             InstanceIdentifier<FibEntries> id = InstanceIdentifier.create(FibEntries.class);
2662
2663             Optional<FibEntries> fibEntries = SingleTransactionDataBroker.syncReadOptional(dataBroker,
2664                     LogicalDatastoreType.CONFIGURATION, id);
2665             if (fibEntries.isPresent()) {
2666                 List<VrfTables> staleVrfTables = fibEntries.get().getVrfTables();
2667                 for (VrfTables vrfTable : staleVrfTables) {
2668                     Map<String, Long> staleFibEntMap = new HashMap<>();
2669                     for (VrfEntry vrfEntry : vrfTable.getVrfEntry()) {
2670                         if (RouteOrigin.value(vrfEntry.getOrigin()) != RouteOrigin.BGP) {
2671                             //Stale marking and cleanup is only meant for the routes learned through BGP.
2672                             continue;
2673                         }
2674                         if (Thread.interrupted()) {
2675                             break;
2676                         }
2677                         totalStaledCount++;
2678                         //Create MAP from staleVrfTables.
2679                         vrfEntry.getRoutePaths()
2680                                 .forEach(
2681                                     routePath -> staleFibEntMap.put(
2682                                             appendNextHopToPrefix(vrfEntry.getDestPrefix(),
2683                                                     routePath.getNexthopAddress()), routePath.getLabel()));
2684                     }
2685                     staledFibEntriesMap.put(vrfTable.getRouteDistinguisher(), staleFibEntMap);
2686                 }
2687             } else {
2688                 LOG.error("createStaleFibMap:: FIBentries.class is not present");
2689             }
2690         } catch (ReadFailedException e) {
2691             LOG.error("createStaleFibMap:: error ", e);
2692         }
2693         LOG.error("created {} staled entries ", totalStaledCount);
2694     }
2695
2696     /*
2697      * BGP config remove scenario, Need to remove all the
2698      * external routes from FIB.
2699      */
2700     public void deleteExternalFibRoutes() {
2701         totalExternalRoutes = 0;
2702         totalExternalMacRoutes = 0;
2703         try {
2704             InstanceIdentifier<FibEntries> id = InstanceIdentifier.create(FibEntries.class);
2705
2706             Optional<FibEntries> fibEntries = SingleTransactionDataBroker.syncReadOptional(dataBroker,
2707                     LogicalDatastoreType.CONFIGURATION, id);
2708             if (fibEntries.isPresent()) {
2709                 if (fibEntries.get().getVrfTables() == null) {
2710                     LOG.error("deleteExternalFibRoutes::getVrfTables is null");
2711                     return;
2712                 }
2713                 List<VrfTables> staleVrfTables = fibEntries.get().getVrfTables();
2714                 for (VrfTables vrfTable : staleVrfTables) {
2715                     String rd = vrfTable.getRouteDistinguisher();
2716                     if (vrfTable.getVrfEntry() != null) {
2717                         for (VrfEntry vrfEntry : vrfTable.getVrfEntry()) {
2718                             if (RouteOrigin.value(vrfEntry.getOrigin()) != RouteOrigin.BGP) {
2719                                 //route cleanup is only meant for the routes learned through BGP.
2720                                 continue;
2721                             }
2722                             totalExternalRoutes++;
2723                             fibDSWriter.removeFibEntryFromDS(rd, vrfEntry.getDestPrefix());
2724                         }
2725                     } else if (vrfTable.getMacVrfEntry() != null) {
2726                         for (MacVrfEntry macEntry : vrfTable.getMacVrfEntry()) {
2727                             if (RouteOrigin.value(macEntry.getOrigin()) != RouteOrigin.BGP) {
2728                                 //route cleanup is only meant for the routes learned through BGP.
2729                                 continue;
2730                             }
2731                             totalExternalMacRoutes++;
2732                             fibDSWriter.removeMacEntryFromDS(rd, macEntry.getMac());
2733                         }
2734                     }
2735                 }
2736             } else {
2737                 LOG.error("deleteExternalFibRoutes:: FIBentries.class is not present");
2738             }
2739         } catch (ReadFailedException e) {
2740             LOG.error("deleteExternalFibRoutes:: error ", e);
2741         }
2742         LOG.debug("deleted {} fib entries {} mac entries", totalExternalRoutes, totalExternalMacRoutes);
2743     }
2744
2745     public boolean addToRt2TepMap(String rd, String tepIp, String mac, Long l2vni) {
2746         boolean isFirstMacUpdateFromTep = false;
2747         if (rt2TepMap.containsKey(rd)) {
2748             if (rt2TepMap.get(rd).containsKey(tepIp)) {
2749                 LOG.debug("RT2 with mac {} l2vni {} from existing rd {} and tep-ip {}. No Elan DS write required",
2750                         mac, l2vni, rd, tepIp);
2751                 rt2TepMap.get(rd).get(tepIp).put(mac, l2vni);
2752             } else {
2753                 LOG.debug("RT2 with mac {} l2vni {} from existing rd {} and new tep-ip {}",
2754                         mac, rd, tepIp);
2755                 isFirstMacUpdateFromTep = true;
2756                 Map<String, Long> macList = new HashMap<>();
2757                 macList.put(mac, l2vni);
2758                 rt2TepMap.get(rd).put(tepIp, macList);
2759             }
2760         } else {
2761             LOG.debug("RT2 with mac {} l2vni {} from new rd {} and tep ip {}",
2762                     mac, l2vni, rd, tepIp);
2763             isFirstMacUpdateFromTep = true;
2764             Map<String, Long> macList = new HashMap<>();
2765             macList.put(mac, l2vni);
2766             Map<String, Map<String, Long>> tepIpMacMap = new HashMap<>();
2767             tepIpMacMap.put(tepIp, macList);
2768             rt2TepMap.put(rd, tepIpMacMap);
2769         }
2770         return isFirstMacUpdateFromTep;
2771     }
2772
2773     public boolean deleteFromRt2TepMap(String rd, String tepIp, String mac) {
2774         boolean isLastMacUpdateFromTep = false;
2775         LOG.debug("RT2 withdraw with rd {} mac {} tep-ip {} ", rd, mac, tepIp);
2776         if (rt2TepMap.containsKey(rd)) {
2777             if (rt2TepMap.get(rd).containsKey(tepIp)) {
2778                 if (rt2TepMap.get(rd).get(tepIp).containsKey(mac)) {
2779                     LOG.debug("RT2 Withdraw : Removing the mac {} from Map", mac);
2780                     rt2TepMap.get(rd).get(tepIp).remove(mac);
2781                     if (rt2TepMap.get(rd).get(tepIp).isEmpty()) {
2782                         isLastMacUpdateFromTep = true;
2783                         LOG.debug("RT2 Withdraw : Removing the tep-ip {} from Map", tepIp);
2784                         rt2TepMap.get(rd).remove(tepIp);
2785                         if (rt2TepMap.get(rd).isEmpty()) {
2786                             LOG.debug("RT2 Withdraw : Removing the rd {} from Map", rd);
2787                             rt2TepMap.remove(rd);
2788                         }
2789                     }
2790                 }
2791             }
2792         }
2793         return isLastMacUpdateFromTep;
2794     }
2795
2796     public Collection<String> getTepIPs(String rd) {
2797         final Map<String, Map<String, Long>> tepIpMap = rt2TepMap.get(rd);
2798         return tepIpMap != null ? tepIpMap.keySet() : Collections.emptyList();
2799     }
2800
2801     public boolean isBgpConnected() {
2802         return bgpRouter.isBgpConnected();
2803     }
2804
2805     public long getLastConnectedTS() {
2806         return bgpRouter.getLastConnectedTS();
2807     }
2808
2809     public long getConnectTS() {
2810         return bgpRouter.getConnectTS();
2811     }
2812
2813     public long getStartTS() {
2814         return bgpRouter.getStartTS();
2815     }
2816
2817     public TTransport getTransport() {
2818         return bgpRouter.getTransport();
2819     }
2820
2821     public int getTotalStaledCount() {
2822         return totalStaledCount;
2823     }
2824
2825     public int getTotalCleared() {
2826         return totalCleared;
2827     }
2828
2829     public BgpCounters getBgpCounters() {
2830         return bgpCountersReference.get();
2831     }
2832
2833     private void startBgpCountersTask() {
2834         if (getBgpCounters() == null && bgpCountersReference.compareAndSet(null,
2835                 new BgpCounters(getBgpSdncMipIp(), metricProvider))) {
2836             bgpCountersTask = executor.scheduleAtFixedRate(bgpCountersReference.get(), 0, 120 * 1000,
2837                     TimeUnit.MILLISECONDS);
2838             LOG.info("Bgp Counters task scheduled for every two minutes.");
2839
2840             bgpManager.setQbgpLog(BgpConstants.BGP_DEF_LOG_FILE, BgpConstants.BGP_DEF_LOG_LEVEL);
2841         }
2842     }
2843
2844     private void stopBgpCountersTask() {
2845         final BgpCounters bgpCounters = bgpCountersReference.getAndSet(null);
2846         if (bgpCounters != null) {
2847             bgpCountersTask.cancel(true);
2848             bgpCounters.close();
2849         }
2850     }
2851
2852     private void startBgpAlarmsTask() {
2853         if (getBgpAlarms() == null && bgpAlarmsReference.compareAndSet(null, new BgpAlarms(this))) {
2854             bgpAlarmsReference.get().init();
2855             bgpAlarmsTask = executor.scheduleAtFixedRate(bgpAlarmsReference.get(), 0, 60 * 1000, TimeUnit.MILLISECONDS);
2856             LOG.info("Bgp Alarms task scheduled for every minute.");
2857         }
2858     }
2859
2860     private void stopBgpAlarmsTask() {
2861         final BgpAlarms bgpAlarms = bgpAlarmsReference.getAndSet(null);
2862         if (bgpAlarms != null) {
2863             bgpAlarmsTask.cancel(true);
2864             bgpAlarms.close();
2865         }
2866     }
2867
2868     public BgpAlarms getBgpAlarms() {
2869         return bgpAlarmsReference.get();
2870     }
2871
2872     private static String appendNextHopToPrefix(String prefix, String nextHop) {
2873         return prefix + ":" + nextHop;
2874     }
2875
2876     private static String extractPrefix(String prefixNextHop) {
2877         return prefixNextHop.split(":")[0];
2878     }
2879
2880     private static String extractNextHop(String prefixNextHop) {
2881         return prefixNextHop.split(":")[1];
2882     }
2883
2884     private static String extractMd5Secret(final Neighbors val) {
2885         String md5Secret = null;
2886         TcpSecurityOption tcpSecOpt = val.getTcpSecurityOption();
2887         if (tcpSecOpt != null) {
2888             if (tcpSecOpt instanceof TcpMd5SignatureOption) {
2889                 md5Secret = ((TcpMd5SignatureOption) tcpSecOpt).getTcpMd5SignaturePassword().getValue();
2890             } else { // unknown TcpSecurityOption
2891                 LOG.debug("neighbors  Ignored unknown tcp-security-option of peer {}", val.getAddress().getValue());
2892             }
2893         }
2894         return md5Secret;
2895     } // private method extractMd5Secret
2896 }