import static java.util.Objects.requireNonNull;
import com.google.common.base.MoreObjects;
-import com.google.common.base.Objects;
+import com.google.common.base.Stopwatch;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
import com.google.common.net.InetAddresses;
import com.google.common.util.concurrent.FluentFuture;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
+import java.util.Objects;
import java.util.Optional;
import java.util.Set;
+import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
-import javax.annotation.concurrent.GuardedBy;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RoutedRpcRegistration;
-import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
+import org.checkerframework.checker.lock.qual.GuardedBy;
+import org.checkerframework.checker.lock.qual.Holding;
+import org.opendaylight.mdsal.binding.api.RpcProviderService;
+import org.opendaylight.mdsal.binding.api.Transaction;
+import org.opendaylight.mdsal.binding.api.TransactionChain;
import org.opendaylight.mdsal.common.api.CommitInfo;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeTransaction;
+import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
import org.opendaylight.protocol.bgp.openconfig.spi.BGPTableTypeRegistryConsumer;
import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
import org.opendaylight.protocol.bgp.parser.BGPError;
import org.opendaylight.protocol.bgp.parser.impl.message.update.LocalPreferenceAttributeParser;
import org.opendaylight.protocol.bgp.parser.spi.MessageUtil;
+import org.opendaylight.protocol.bgp.parser.spi.RevisedErrorHandlingSupport;
+import org.opendaylight.protocol.bgp.rib.impl.config.BgpPeer;
+import org.opendaylight.protocol.bgp.rib.impl.config.GracefulRestartUtil;
+import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
import org.opendaylight.protocol.bgp.rib.impl.spi.RIB;
import org.opendaylight.protocol.bgp.rib.impl.state.BGPSessionStateProvider;
import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
import org.opendaylight.protocol.bgp.rib.spi.state.BGPSessionState;
import org.opendaylight.protocol.bgp.rib.spi.state.BGPTimersState;
import org.opendaylight.protocol.bgp.rib.spi.state.BGPTransportState;
-import org.opendaylight.protocol.bgp.route.targetcontrain.spi.ClientRouteTargetContrainCache;
-import org.opendaylight.protocol.concepts.AbstractRegistration;
import org.opendaylight.protocol.util.Ipv4Util;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressNoZone;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.DestinationIpv4Builder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.Update;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.AttributesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.update.message.Nlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.Update;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.BgpParameters;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.AttributesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.update.message.Nlri;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.BgpAddPathTableType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.BgpTableType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.RouteRefresh;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.SendReceive;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp.capabilities.GracefulRestartCapability;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp.capabilities.add.path.capability.AddressFamilies;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlri;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlriBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.BgpPeerRpcService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.PeerContext;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.PeerRole;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.bgp.rib.rib.PeerKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.bgp.rib.rib.peer.AdjRibOut;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.Tables;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.routes.route.target.constrain.routes.RouteTargetConstrainRoute;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.ClusterIdentifier;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.Ipv4AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.RouteTarget;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.SubsequentAddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.UnicastSubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.ClusterIdentifier;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.Ipv4AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.RouteTarget;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.SubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.UnicastSubsequentAddressFamily;
+import org.opendaylight.yangtools.concepts.ObjectRegistration;
+import org.opendaylight.yangtools.concepts.Registration;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
import org.opendaylight.yangtools.yang.binding.Notification;
*/
public class BGPPeer extends AbstractPeer implements BGPSessionListener {
private static final Logger LOG = LoggerFactory.getLogger(BGPPeer.class);
+ private static final TablesKey IPV4_UCAST_TABLE_KEY = new TablesKey(Ipv4AddressFamily.class,
+ UnicastSubsequentAddressFamily.class);
- private Set<TablesKey> tables = Collections.emptySet();
+ private ImmutableSet<TablesKey> tables = ImmutableSet.of();
private final RIB rib;
private final Map<TablesKey, AdjRibOutListener> adjRibOutListenerSet = new HashMap<>();
private final List<RouteTarget> rtMemberships = new ArrayList<>();
- private final RpcProviderRegistry rpcRegistry;
+ private final RpcProviderService rpcRegistry;
private final BGPTableTypeRegistryConsumer tableTypeRegistry;
+ private final BgpPeer bgpPeer;
private InstanceIdentifier<AdjRibOut> peerRibOutIId;
+ private KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib
+ .rev180329.bgp.rib.rib.Peer, PeerKey> peerIId;
@GuardedBy("this")
- private AbstractRegistration trackerRegistration;
+ private Registration trackerRegistration;
private final LoadingCache<TablesKey, KeyedInstanceIdentifier<Tables, TablesKey>> tablesIId
= CacheBuilder.newBuilder()
.build(new CacheLoader<TablesKey, KeyedInstanceIdentifier<Tables, TablesKey>>() {
});
@GuardedBy("this")
- private BGPSession session;
+ private BGPSession currentSession;
@GuardedBy("this")
private AdjRibInWriter ribWriter;
@GuardedBy("this")
private EffectiveRibInWriter effRibInWriter;
- private RoutedRpcRegistration<BgpPeerRpcService> rpcRegistration;
+ private ObjectRegistration<BgpPeerRpcService> rpcRegistration;
private Map<TablesKey, SendReceive> addPathTableMaps = Collections.emptyMap();
private YangInstanceIdentifier peerPath;
private boolean sessionUp;
+ private boolean llgrSupport;
+ private Stopwatch peerRestartStopwatch;
+ private long currentSelectionDeferralTimerSeconds;
+ private final List<TablesKey> missingEOT = new ArrayList<>();
public BGPPeer(
final BGPTableTypeRegistryConsumer tableTypeRegistry,
- final IpAddress neighborAddress,
+ final IpAddressNoZone neighborAddress,
final String peerGroupName,
final RIB rib,
final PeerRole role,
final ClusterIdentifier clusterId,
final AsNumber localAs,
- final RpcProviderRegistry rpcRegistry,
+ final RpcProviderService rpcRegistry,
final Set<TablesKey> afiSafisAdvertized,
- final Set<TablesKey> afiSafisGracefulAdvertized) {
+ final Set<TablesKey> afiSafisGracefulAdvertized,
+ final Map<TablesKey, Integer> llGracefulTablesAdvertised,
+ final BgpPeer bgpPeer) {
super(rib, Ipv4Util.toStringIP(neighborAddress), peerGroupName, role, clusterId,
- localAs, neighborAddress, afiSafisAdvertized, afiSafisGracefulAdvertized);
+ localAs, neighborAddress, afiSafisAdvertized, afiSafisGracefulAdvertized, llGracefulTablesAdvertised);
this.tableTypeRegistry = requireNonNull(tableTypeRegistry);
this.rib = requireNonNull(rib);
this.rpcRegistry = rpcRegistry;
+ this.bgpPeer = bgpPeer;
}
- BGPPeer(
- final BGPTableTypeRegistryConsumer tableTypeRegistry,
- final IpAddress neighborAddress,
- final RIB rib,
- final PeerRole role,
- final RpcProviderRegistry rpcRegistry,
- final Set<TablesKey> afiSafisAdvertized,
- final Set<TablesKey> afiSafisGracefulAdvertized) {
- this(tableTypeRegistry, neighborAddress, null, rib, role, null, null, rpcRegistry,
- afiSafisAdvertized, afiSafisGracefulAdvertized);
- }
-
-
private static Attributes nextHopToAttribute(final Attributes attrs, final MpReachNlri mpReach) {
if (attrs.getCNextHop() == null && mpReach.getCNextHop() != null) {
final AttributesBuilder attributesBuilder = new AttributesBuilder(attrs);
Optional<Nlri> nlriAnounced = Optional.empty();
if (isAnyNlriAnnounced) {
- nlriAnounced = message.getNlri().stream().filter(n -> Objects.equal(n.getPrefix(), w.getPrefix())
- && Objects.equal(n.getPathId(), w.getPathId()))
+ nlriAnounced = message.getNlri().stream().filter(n -> Objects.equals(n.getPrefix(), w.getPrefix())
+ && Objects.equals(n.getPathId(), w.getPathId()))
.findAny();
}
if (!nlriAnounced.isPresent()) {
}
public synchronized void instantiateServiceInstance() {
+ createDomChain();
this.ribWriter = AdjRibInWriter.create(this.rib.getYangRibId(), this.peerRole, this);
setActive(true);
}
@Override
public void onMessage(final BGPSession session, final Notification msg) throws BGPDocumentedException {
- if (!(msg instanceof Update) && !(msg instanceof RouteRefresh)) {
- LOG.info("Ignoring unhandled message class {}", msg.getClass());
- return;
- }
if (msg instanceof Update) {
onUpdateMessage((Update) msg);
- } else {
+ } else if (msg instanceof RouteRefresh) {
onRouteRefreshMessage((RouteRefresh) msg);
+ } else {
+ LOG.info("Ignoring unhandled message class {}", msg.getClass());
}
}
final Class<? extends SubsequentAddressFamily> rrSafi = message.getSafi();
final TablesKey key = new TablesKey(rrAfi, rrSafi);
- final AdjRibOutListener listener = this.adjRibOutListenerSet.get(key);
- if (listener != null) {
- listener.close();
- this.adjRibOutListenerSet.remove(key);
- createAdjRibOutListener(key, listener.isMpSupported());
- } else {
- LOG.info("Ignoring RouteRefresh message. Afi/Safi is not supported: {}, {}.", rrAfi, rrSafi);
+ synchronized (this) {
+ final AdjRibOutListener listener = this.adjRibOutListenerSet.remove(key);
+ if (listener != null) {
+ listener.close();
+ createAdjRibOutListener(key, listener.isMpSupported());
+ } else {
+ LOG.info("Ignoring RouteRefresh message. Afi/Safi is not supported: {}, {}.", rrAfi, rrSafi);
+ }
}
}
if (mpReach != null) {
this.ribWriter.updateRoutes(mpReach, nextHopToAttribute(attrs, mpReach));
}
- MpUnreachNlri mpUnreach;
+ final MpUnreachNlri mpUnreach;
if (message.getWithdrawnRoutes() != null) {
mpUnreach = prefixesToMpUnreach(message, isAnyNlriAnnounced);
} else {
mpUnreach = MessageUtil.getMpUnreachNlri(attrs);
}
+ final boolean endOfRib = BgpPeerUtil.isEndOfRib(message);
if (mpUnreach != null) {
- this.ribWriter.removeRoutes(mpUnreach);
+ if (endOfRib) {
+ final TablesKey tablesKey = new TablesKey(mpUnreach.getAfi(), mpUnreach.getSafi());
+ this.ribWriter.removeStaleRoutes(tablesKey);
+ this.missingEOT.remove(tablesKey);
+ handleGracefulEndOfRib();
+ } else {
+ this.ribWriter.removeRoutes(mpUnreach);
+ }
+ } else if (endOfRib) {
+ this.ribWriter.removeStaleRoutes(IPV4_UCAST_TABLE_KEY);
+ this.missingEOT.remove(IPV4_UCAST_TABLE_KEY);
+ handleGracefulEndOfRib();
+ }
+ }
+
+ @Holding("this")
+ private void handleGracefulEndOfRib() {
+ if (isLocalRestarting()) {
+ if (this.missingEOT.isEmpty()) {
+ createEffRibInWriter();
+ this.effRibInWriter.init();
+ registerPrefixesCounters(this.effRibInWriter, this.effRibInWriter);
+ for (final TablesKey key : getAfiSafisAdvertized()) {
+ createAdjRibOutListener(key, true);
+ }
+ setLocalRestartingState(false);
+ setGracefulPreferences(false, Collections.emptySet());
+ }
}
}
@Override
public synchronized void onSessionUp(final BGPSession session) {
- this.session = session;
+ this.currentSession = session;
this.sessionUp = true;
this.bindingChain = this.rib.createPeerChain(this);
- if (this.session instanceof BGPSessionStateProvider) {
- ((BGPSessionStateProvider) this.session).registerMessagesCounter(this);
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ ((BGPSessionStateProvider) this.currentSession).registerMessagesCounter(this);
}
+ final GracefulRestartCapability advertisedGracefulRestartCapability =
+ session.getAdvertisedGracefulRestartCapability();
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp
+ .capabilities.graceful.restart.capability.Tables> advertisedTables =
+ advertisedGracefulRestartCapability.getTables();
+ final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp
+ .capabilities.ll.graceful.restart.capability.Tables> advertisedLLTables =
+ session.getAdvertisedLlGracefulRestartCapability().getTables();
final List<AddressFamilies> addPathTablesType = session.getAdvertisedAddPathTableTypes();
final Set<BgpTableType> advertizedTableTypes = session.getAdvertisedTableTypes();
- final List<BgpTableType> advertizedGracefulRestartTableTypes = session.getAdvertisedGracefulRestartTableTypes();
LOG.info("Session with peer {} went up with tables {} and Add Path tables {}", this.name,
advertizedTableTypes, addPathTablesType);
- this.rawIdentifier = InetAddresses.forString(session.getBgpId().getValue()).getAddress();
- this.peerId = RouterIds.createPeerId(session.getBgpId());
- final KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib
- .rev180329.bgp.rib.rib.Peer, PeerKey> peerIId =
- getInstanceIdentifier().child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns
- .yang.bgp.rib.rev180329.bgp.rib.rib.Peer.class, new PeerKey(this.peerId));
final Set<TablesKey> setTables = advertizedTableTypes.stream().map(t -> new TablesKey(t.getAfi(), t.getSafi()))
.collect(Collectors.toSet());
this.tables = ImmutableSet.copyOf(setTables);
- this.effRibInWriter = new EffectiveRibInWriter(this, this.rib,
- this.rib.createPeerChain(this),
- peerIId, this.tables, this.tableTypeRegistry,
- this.rtMemberships,
- this.rtCache);
- registerPrefixesCounters(this.effRibInWriter, this.effRibInWriter);
- this.peerRibOutIId = peerIId.child(AdjRibOut.class);
- this.effRibInWriter.init();
- setAdvertizedGracefulRestartTableTypes(advertizedGracefulRestartTableTypes.stream()
- .map(t -> new TablesKey(t.getAfi(), t.getSafi())).collect(Collectors.toList()));
- this.addPathTableMaps = ImmutableMap.copyOf(mapTableTypesFamilies(addPathTablesType));
- this.trackerRegistration = this.rib.getPeerTracker().registerPeer(this);
- for (final TablesKey key : this.tables) {
- createAdjRibOutListener(key, true);
+ this.addPathTableMaps = mapTableTypesFamilies(addPathTablesType);
+ final boolean restartingLocally = isLocalRestarting();
+
+ if (!isRestartingGracefully()) {
+ this.rawIdentifier = InetAddresses.forString(session.getBgpId().getValue()).getAddress();
+ this.peerId = RouterIds.createPeerId(session.getBgpId());
+ this.peerIId = getInstanceIdentifier().child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns
+ .yang.bgp.rib.rev180329.bgp.rib.rib.Peer.class, new PeerKey(this.peerId));
+ this.peerPath = createPeerPath();
+ this.peerRibOutIId = peerIId.child(AdjRibOut.class);
+ this.trackerRegistration = this.rib.getPeerTracker().registerPeer(this);
+ createEffRibInWriter();
+ registerPrefixesCounters(this.effRibInWriter, this.effRibInWriter);
+
+ this.effRibInWriter.init();
+ this.ribWriter = this.ribWriter.transform(this.peerId, this.peerPath, this.rib.getRibSupportContext(),
+ this.tables, this.addPathTableMaps);
+
+ if (this.rpcRegistry != null) {
+ this.rpcRegistration = this.rpcRegistry.registerRpcImplementation(BgpPeerRpcService.class,
+ new BgpPeerRpc(this, session, this.tables), ImmutableSet.of(this.rib.getInstanceIdentifier().child(
+ org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.bgp.rib.rib
+ .Peer.class, new PeerKey(this.peerId))));
+ }
+ } else {
+ final Set<TablesKey> forwardingTables;
+ if (advertisedTables == null) {
+ forwardingTables = Collections.emptySet();
+ } else {
+ forwardingTables = advertisedTables.stream()
+ .filter(table -> table.getAfiFlags() != null)
+ .filter(table -> table.getAfiFlags().isForwardingState())
+ .map(table -> new TablesKey(table.getAfi(), table.getSafi()))
+ .collect(Collectors.toSet());
+ }
+ this.ribWriter.clearTables(Sets.difference(this.tables, forwardingTables));
+ if (restartingLocally) {
+ this.effRibInWriter.close();
+ this.peerRestartStopwatch = Stopwatch.createStarted();
+ handleSelectionReferralTimer();
+ this.missingEOT.addAll(this.tables);
+ }
}
+ if (advertisedTables == null || advertisedTables.isEmpty()) {
+ setAdvertizedGracefulRestartTableTypes(Collections.emptyList());
+ } else {
+ setAdvertizedGracefulRestartTableTypes(advertisedTables.stream()
+ .map(t -> new TablesKey(t.getAfi(), t.getSafi())).collect(Collectors.toList()));
+ }
+ setAfiSafiGracefulRestartState(advertisedGracefulRestartCapability.getRestartTime().toJava(), false,
+ restartingLocally);
+
+ final Map<TablesKey, Integer> llTablesReceived;
+ if (advertisedLLTables != null) {
+ llTablesReceived = new HashMap<>();
+ for (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.mp
+ .capabilities.ll.graceful.restart.capability.Tables table : advertisedLLTables) {
+ llTablesReceived.put(new TablesKey(table.getAfi(), table.getSafi()),
+ table.getLongLivedStaleTime().getValue().intValue());
+ }
+ } else {
+ llTablesReceived = Collections.emptyMap();
+ }
+ setAdvertizedLlGracefulRestartTableTypes(llTablesReceived);
- addBgp4Support();
+ if (!llTablesReceived.isEmpty()) {
+ llgrSupport = true;
+ // FIXME: propagate preserved tables
+ } else {
+ // FIXME: clear preserved tables
+ llgrSupport = false;
+ }
- this.peerPath = createPeerPath();
- this.ribWriter = this.ribWriter.transform(this.peerId, this.peerPath, this.rib.getRibSupportContext(),
- this.tables, this.addPathTableMaps);
+ if (!restartingLocally) {
+ addBgp4Support();
+ for (final TablesKey key : getAfiSafisAdvertized()) {
+ createAdjRibOutListener(key, true);
+ }
+ }
- if (this.rpcRegistry != null) {
- this.rpcRegistration = this.rpcRegistry.addRoutedRpcImplementation(BgpPeerRpcService.class,
- new BgpPeerRpc(this, session, this.tables));
- final KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib
- .rev180329.bgp.rib.rib.Peer, PeerKey> path = this.rib.getInstanceIdentifier()
- .child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.bgp.rib
- .rib.Peer.class, new PeerKey(this.peerId));
- this.rpcRegistration.registerPath(PeerContext.class, path);
+ // SpotBugs does not grok Optional.ifPresent() and thinks we are using unsynchronized access
+ final Optional<RevisedErrorHandlingSupport> errorHandling = this.bgpPeer.getErrorHandling();
+ if (errorHandling.isPresent()) {
+ this.currentSession.addDecoderConstraint(RevisedErrorHandlingSupport.class, errorHandling.get());
}
}
+ private boolean isRestartingGracefully() {
+ return isLocalRestarting() || isPeerRestarting();
+ }
+
+ private synchronized void createEffRibInWriter() {
+ this.effRibInWriter = new EffectiveRibInWriter(this, this.rib,
+ this.rib.createPeerDOMChain(this),
+ this.peerPath, this.tables, this.tableTypeRegistry,
+ this.rtMemberships,
+ this.rtCache);
+ }
+
//try to add a support for old-school BGP-4, if peer did not advertise IPv4-Unicast MP capability
- private synchronized void addBgp4Support() {
- final TablesKey key = new TablesKey(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
- if (!this.tables.contains(key)) {
+ @Holding("this")
+ private void addBgp4Support() {
+ if (!this.tables.contains(IPV4_UCAST_TABLE_KEY)) {
final HashSet<TablesKey> newSet = new HashSet<>(this.tables);
- newSet.add(key);
+ newSet.add(IPV4_UCAST_TABLE_KEY);
this.tables = ImmutableSet.copyOf(newSet);
- createAdjRibOutListener(key, false);
+ createAdjRibOutListener(IPV4_UCAST_TABLE_KEY, false);
}
}
- private synchronized void createAdjRibOutListener(final TablesKey key,
- final boolean mpSupport) {
+ @Holding("this")
+ private void createAdjRibOutListener(final TablesKey key, final boolean mpSupport) {
final RIBSupport<?, ?, ?, ?> ribSupport = this.rib.getRibSupportContext().getRIBSupport(key);
// not particularly nice
- if (ribSupport != null && this.session instanceof BGPSessionImpl) {
- final ChannelOutputLimiter limiter = ((BGPSessionImpl) this.session).getLimiter();
+ if (ribSupport != null && this.currentSession instanceof BGPSessionImpl) {
+ final ChannelOutputLimiter limiter = ((BGPSessionImpl) this.currentSession).getLimiter();
final AdjRibOutListener adjRibOut = AdjRibOutListener.create(this.peerId, key,
this.rib.getYangRibId(), this.rib.getCodecsRegistry(), ribSupport,
this.rib.getService(), limiter, mpSupport);
}
@Override
- public synchronized void onSessionDown(final BGPSession session, final Exception e) {
- if (e.getMessage().equals(BGPSessionImpl.END_OF_INPUT)) {
+ public synchronized void onSessionDown(final BGPSession session, final Exception exc) {
+ if (exc.getMessage().equals(BGPSessionImpl.END_OF_INPUT)) {
LOG.info("Session with peer {} went down", this.name);
} else {
- LOG.info("Session with peer {} went down", this.name, e);
+ LOG.info("Session with peer {} went down", this.name, exc);
}
- releaseConnection();
+ releaseConnectionGracefully();
}
@Override
public synchronized void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
LOG.info("Session with peer {} terminated: {}", this.name, cause);
- releaseConnection();
+ releaseConnectionGracefully();
}
@Override
public String toString() {
- return MoreObjects.toStringHelper(this)
- .add("name", this.name)
- .add("tables", this.tables).toString();
- }
+ return MoreObjects.toStringHelper(this).add("name", this.name).add("tables", this.tables).toString();
+ }
@Override
public synchronized FluentFuture<? extends CommitInfo> releaseConnection() {
this.sessionUp = false;
this.adjRibOutListenerSet.values().forEach(AdjRibOutListener::close);
this.adjRibOutListenerSet.clear();
+ final FluentFuture<? extends CommitInfo> future;
+ if (!isRestartingGracefully()) {
+ future = terminateConnection();
+ } else {
+ final Set<TablesKey> gracefulTables = getGracefulTables();
+ this.ribWriter.storeStaleRoutes(gracefulTables);
+ future = this.ribWriter.clearTables(Sets.difference(this.tables, gracefulTables));
+ if (isPeerRestarting()) {
+ this.peerRestartStopwatch = Stopwatch.createStarted();
+ handleRestartTimer();
+ }
+ }
+ releaseBindingChain();
+
+ closeSession();
+ return future;
+ }
+
+ @Holding("this")
+ @SuppressWarnings("checkstyle:illegalCatch")
+ private void closeSession() {
+ if (this.currentSession != null) {
+ try {
+ if (isRestartingGracefully()) {
+ this.currentSession.closeWithoutMessage();
+ } else {
+ this.currentSession.close();
+ }
+ } catch (final Exception e) {
+ LOG.warn("Error closing session with peer", e);
+ }
+ this.currentSession = null;
+ }
+ }
+
+ private Set<TablesKey> getGracefulTables() {
+ return this.tables.stream()
+ .filter(this::isGracefulRestartReceived)
+ .filter(this::isGracefulRestartAdvertized)
+ .collect(Collectors.toSet());
+ }
+
+ private synchronized FluentFuture<? extends CommitInfo> terminateConnection() {
+ final FluentFuture<? extends CommitInfo> future;
if (this.trackerRegistration != null) {
this.trackerRegistration.close();
this.trackerRegistration = null;
if (this.rpcRegistration != null) {
this.rpcRegistration.close();
}
- releaseBindingChain();
-
this.ribWriter.releaseChain();
- // FIXME: BUG-196: support graceful
if (this.effRibInWriter != null) {
this.effRibInWriter.close();
}
- this.tables = Collections.emptySet();
+ this.tables = ImmutableSet.of();
this.addPathTableMaps = Collections.emptyMap();
- final FluentFuture<? extends CommitInfo> future = removePeer(this.peerPath);
- if (this.session != null) {
- try {
- this.session.close();
- } catch (final Exception e) {
- LOG.warn("Error closing session with peer", e);
- }
- this.session = null;
- }
+ future = removePeer(this.peerPath);
resetState();
+
return future;
}
+ /**
+ * If Graceful Restart Timer expires, remove all routes advertised by peer.
+ */
+ private synchronized void handleRestartTimer() {
+ if (!isPeerRestarting()) {
+ return;
+ }
+
+ final long peerRestartTimeNanos = TimeUnit.SECONDS.toNanos(getPeerRestartTime());
+ final long elapsedNanos = this.peerRestartStopwatch.elapsed(TimeUnit.NANOSECONDS);
+ if (elapsedNanos >= peerRestartTimeNanos) {
+ setAfiSafiGracefulRestartState(0, false, false);
+ onSessionTerminated(this.currentSession, new BGPTerminationReason(BGPError.HOLD_TIMER_EXPIRED));
+ }
+
+ currentSession.schedule(this::handleRestartTimer, peerRestartTimeNanos - elapsedNanos, TimeUnit.NANOSECONDS);
+ }
+
+ private synchronized void handleSelectionReferralTimer() {
+ if (!isLocalRestarting()) {
+ return;
+ }
+
+ final long referalTimerNanos = TimeUnit.SECONDS.toNanos(this.currentSelectionDeferralTimerSeconds);
+ final long elapsedNanos = this.peerRestartStopwatch.elapsed(TimeUnit.NANOSECONDS);
+ if (elapsedNanos >= referalTimerNanos) {
+ this.missingEOT.clear();
+ handleGracefulEndOfRib();
+ }
+ currentSession.schedule(this::handleSelectionReferralTimer, referalTimerNanos - elapsedNanos,
+ TimeUnit.NANOSECONDS);
+ }
+
+ private void releaseConnectionGracefully() {
+ if (getPeerRestartTime() > 0) {
+ setRestartingState();
+ }
+ releaseConnection();
+ }
+
@SuppressFBWarnings("IS2_INCONSISTENT_SYNC")
@Override
public SendReceive getSupportedAddPathTables(final TablesKey tableKey) {
@Override
public boolean supportsTable(final TablesKey tableKey) {
- return this.tables.contains(tableKey) && this.sessionUp;
+ return this.sessionUp && getAfiSafisAdvertized().contains(tableKey);
}
@Override
}
@Override
- public synchronized void onTransactionChainFailed(final TransactionChain<?, ?> chain,
- final AsyncTransaction<?, ?> transaction, final Throwable cause) {
+ public synchronized void onTransactionChainFailed(final DOMTransactionChain chain,
+ final DOMDataTreeTransaction transaction, final Throwable cause) {
+ LOG.error("Transaction domChain failed.", cause);
+ releaseConnection();
+ }
+
+ @Override
+ public synchronized void onTransactionChainFailed(final TransactionChain chain, final Transaction transaction,
+ final Throwable cause) {
LOG.error("Transaction domChain failed.", cause);
releaseConnection();
}
@Override
public synchronized BGPSessionState getBGPSessionState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPSessionState();
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPSessionState();
}
return null;
}
@Override
public synchronized BGPTimersState getBGPTimersState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPTimersState();
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPTimersState();
}
return null;
}
@Override
public synchronized BGPTransportState getBGPTransportState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPTransportState();
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPTransportState();
}
return null;
}
public List<RouteTarget> getMemberships() {
return this.rtMemberships;
}
+
+ @Override
+ public synchronized ListenableFuture<?> restartGracefully(final long selectionDeferralTimerSeconds) {
+ final Set<TablesKey> tablesToPreserve = getGracefulTables();
+ if (tablesToPreserve == null || tablesToPreserve.isEmpty()) {
+ LOG.info("Peer {} is not capable of graceful restart or have no matching graceful tables.", this.peerId);
+ return Futures.immediateFailedFuture(new UnsupportedOperationException(
+ "Peer is not capable of graceful restart"));
+ }
+ setGracefulPreferences(true, tablesToPreserve);
+ this.currentSelectionDeferralTimerSeconds = selectionDeferralTimerSeconds;
+ setLocalRestartingState(true);
+ return releaseConnection();
+ }
+
+ @Override
+ boolean supportsLLGR() {
+ return this.llgrSupport;
+ }
+
+ private synchronized void setGracefulPreferences(final boolean localRestarting,
+ final Set<TablesKey> preservedTables) {
+ final Set<TablesKey> gracefulTables = this.tables.stream()
+ .filter(this::isGracefulRestartAdvertized)
+ .collect(Collectors.toSet());
+ final BgpParameters bgpParameters = GracefulRestartUtil.getGracefulBgpParameters(
+ this.bgpPeer.getBgpFixedCapabilities(), gracefulTables, preservedTables,
+ this.bgpPeer.getGracefulRestartTimer(), localRestarting, Collections.emptySet());
+ final BGPSessionPreferences oldPrefs = this.rib.getDispatcher().getBGPPeerRegistry()
+ .getPeerPreferences(getNeighborAddress());
+ final BGPSessionPreferences newPrefs = new BGPSessionPreferences(
+ oldPrefs.getMyAs(),
+ oldPrefs.getHoldTime(),
+ oldPrefs.getBgpId(),
+ oldPrefs.getExpectedRemoteAs(),
+ Collections.singletonList(bgpParameters),
+ oldPrefs.getMd5Password());
+ this.rib.getDispatcher().getBGPPeerRegistry()
+ .updatePeerPreferences(getNeighborAddress(), newPrefs);
+ }
}
Code Review / bgpcep.git / blobdiff