*/
package org.opendaylight.protocol.bgp.rib.impl;
-import static org.opendaylight.protocol.bgp.rib.impl.AdjRibInWriter.isAnnounceNone;
-import static org.opendaylight.protocol.bgp.rib.impl.AdjRibInWriter.isLearnNone;
+import static java.util.Objects.requireNonNull;
+import static org.opendaylight.protocol.bgp.rib.spi.RIBNodeIdentifiers.ADJRIBOUT_NID;
+import static org.opendaylight.protocol.bgp.rib.spi.RIBNodeIdentifiers.TABLES_NID;
import com.google.common.base.MoreObjects;
-import com.google.common.base.MoreObjects.ToStringHelper;
-import com.google.common.base.Preconditions;
-import com.google.common.net.InetAddresses;
+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.ImmutableClassToInstanceMap;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.FluentFuture;
+import com.google.common.util.concurrent.FutureCallback;
+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.Arrays;
+import java.util.Collections;
import java.util.HashMap;
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.config.yang.bgp.rib.impl.BGPPeerRuntimeMXBean;
-import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeRegistration;
-import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeRegistrator;
-import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpPeerState;
-import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpSessionState;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
-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.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.binding.api.RpcProviderService;
+import org.opendaylight.mdsal.common.api.CommitInfo;
+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.spi.RIBSupportContext;
-import org.opendaylight.protocol.bgp.rib.impl.stats.peer.BGPPeerStats;
-import org.opendaylight.protocol.bgp.rib.impl.stats.peer.BGPPeerStatsImpl;
-import org.opendaylight.protocol.bgp.rib.impl.stats.peer.BGPSessionStats;
+import org.opendaylight.protocol.bgp.rib.impl.state.BGPSessionStateProvider;
import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
import org.opendaylight.protocol.bgp.rib.spi.BGPSessionListener;
import org.opendaylight.protocol.bgp.rib.spi.BGPTerminationReason;
-import org.opendaylight.protocol.bgp.rib.spi.IdentifierUtils;
-import org.opendaylight.protocol.bgp.rib.spi.Peer;
+import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
import org.opendaylight.protocol.bgp.rib.spi.RouterIds;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4Builder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.RouteRefresh;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.add.path.capability.AddressFamilies;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev160322.BgpPeerRpcService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev160322.PeerContext;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.SimpleRoutingPolicy;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.PeerKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
+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.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.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.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.attributes.reach.MpReachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.attributes.reach.MpReachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.attributes.reach.mp.reach.nlri.AdvertizedRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.attributes.unreach.MpUnreachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.attributes.unreach.MpUnreachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.attributes.unreach.mp.unreach.nlri.WithdrawnRoutesBuilder;
+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.peer.rpc.rev180329.ResetSession;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RestartGracefully;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequest;
+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.rib.TablesKey;
+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.UnicastSubsequentAddressFamily;
+import org.opendaylight.yangtools.concepts.Registration;
import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
import org.opendaylight.yangtools.yang.binding.Notification;
+import org.opendaylight.yangtools.yang.binding.Rpc;
+import org.opendaylight.yangtools.yang.common.Empty;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
* Class representing a peer. We have a single instance for each peer, which provides translation from BGP events into
* RIB actions.
*/
-public class BGPPeer implements BGPSessionListener, Peer, AutoCloseable, BGPPeerRuntimeMXBean, TransactionChainListener {
-
+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.VALUE, UnicastSubsequentAddressFamily.VALUE);
+ private final RIB rib;
+
+ // FIXME: Alright, this right here is a ton of state which has intertwined initialization and dependencies Split
+ // these out into separate behavior objects. This also has relationship with state in AbstractPeer -- which
+ // hints at an obvious layer of indirection. Yeah, yeah, we can always add one of those, but the point
+ // is that this class is a mutable meeting point, whereas the behaviour has captured invariants.
+ private final LoadingCache<NodeIdentifierWithPredicates, YangInstanceIdentifier> tablesIId =
+ CacheBuilder.newBuilder().build(new CacheLoader<NodeIdentifierWithPredicates, YangInstanceIdentifier>() {
+ @Override
+ public YangInstanceIdentifier load(final NodeIdentifierWithPredicates key) {
+ return peerRibOutIId.node(TABLES_NID).node(key).toOptimized();
+ }
+ });
+
+ private ImmutableSet<TablesKey> tables = ImmutableSet.of();
+ private final Map<TablesKey, AdjRibOutListener> adjRibOutListenerSet = new HashMap<>();
+ private final List<RouteTarget> rtMemberships = new ArrayList<>();
+ private final RpcProviderService rpcRegistry;
+ private final BGPTableTypeRegistryConsumer tableTypeRegistry;
+ private final BgpPeer bgpPeer;
+
+ // FIXME: This should be a constant co-located with ApplicationPeer.peerId
+ private YangInstanceIdentifier peerRibOutIId;
@GuardedBy("this")
- private final Set<TablesKey> tables = new HashSet<>();
- @GuardedBy("this")
- private BGPSession session;
- @GuardedBy("this")
- private byte[] rawIdentifier;
+ private Registration trackerRegistration;
+
@GuardedBy("this")
- private DOMTransactionChain chain;
+ private BGPSession currentSession;
@GuardedBy("this")
private AdjRibInWriter ribWriter;
@GuardedBy("this")
private EffectiveRibInWriter effRibInWriter;
-
- private final RIB rib;
- private final String name;
- private BGPPeerRuntimeRegistrator registrator;
- private BGPPeerRuntimeRegistration runtimeReg;
- private final Map<TablesKey, AdjRibOutListener> adjRibOutListenerSet = new HashMap();
- private final RpcProviderRegistry rpcRegistry;
- private RoutedRpcRegistration<BgpPeerRpcService> rpcRegistration;
- private final PeerRole peerRole;
- private final Optional<SimpleRoutingPolicy> simpleRoutingPolicy;
- private final BGPPeerStats peerStats;
-
- public BGPPeer(final String name, final RIB rib, final PeerRole role, final SimpleRoutingPolicy peerStatus, final RpcProviderRegistry rpcRegistry) {
- this.peerRole = role;
- this.simpleRoutingPolicy = Optional.ofNullable(peerStatus);
- this.rib = Preconditions.checkNotNull(rib);
- this.name = name;
- this.chain = rib.createPeerChain(this);
- this.ribWriter = AdjRibInWriter.create(rib.getYangRibId(), this.peerRole, this.simpleRoutingPolicy, this.chain);
+ private Registration rpcRegistration;
+ private ImmutableMap<TablesKey, SendReceive> addPathTableMaps = ImmutableMap.of();
+ // FIXME: This should be a constant co-located with ApplicationPeer.peerId
+ private YangInstanceIdentifier peerPath;
+ // FIXME: This is for supportsTable() -- a trivial behavior thing, where 'peer-down' type states always return false
+ 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 IpAddressNoZone neighborAddress,
+ final String peerGroupName,
+ final RIB rib,
+ final PeerRole role,
+ final ClusterIdentifier clusterId,
+ final AsNumber localAs,
+ final RpcProviderService rpcRegistry,
+ final Set<TablesKey> afiSafisAdvertized,
+ final Set<TablesKey> afiSafisGracefulAdvertized,
+ final Map<TablesKey, Integer> llGracefulTablesAdvertised,
+ final BgpPeer bgpPeer) {
+ super(rib, Ipv4Util.toStringIP(neighborAddress), peerGroupName, role, clusterId,
+ localAs, neighborAddress, afiSafisAdvertized, afiSafisGracefulAdvertized, llGracefulTablesAdvertised);
+ this.tableTypeRegistry = requireNonNull(tableTypeRegistry);
+ this.rib = requireNonNull(rib);
this.rpcRegistry = rpcRegistry;
- this.peerStats = new BGPPeerStatsImpl(this.name, this.tables);
+ this.bgpPeer = bgpPeer;
+ }
+
+ private static Attributes nextHopToAttribute(final Attributes attrs, final MpReachNlri mpReach) {
+ if (attrs.getCNextHop() == null && mpReach.getCNextHop() != null) {
+ final AttributesBuilder attributesBuilder = new AttributesBuilder(attrs);
+ attributesBuilder.setCNextHop(mpReach.getCNextHop());
+ return attributesBuilder.build();
+ }
+ return attrs;
+ }
+
+ /**
+ * Creates MPReach for the prefixes to be handled in the same way as linkstate routes.
+ *
+ * @param message Update message containing prefixes in NLRI
+ * @return MpReachNlri with prefixes from the nlri field
+ */
+ private static MpReachNlri prefixesToMpReach(final Update message) {
+ final List<Ipv4Prefixes> prefixes = message.getNlri().stream()
+ .map(n -> new Ipv4PrefixesBuilder().setPrefix(n.getPrefix()).setPathId(n.getPathId()).build())
+ .collect(Collectors.toList());
+ final MpReachNlriBuilder b = new MpReachNlriBuilder()
+ .setAfi(Ipv4AddressFamily.VALUE)
+ .setSafi(UnicastSubsequentAddressFamily.VALUE)
+ .setAdvertizedRoutes(new AdvertizedRoutesBuilder()
+ .setDestinationType(new DestinationIpv4CaseBuilder()
+ .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build())
+ .build())
+ .build());
+ if (message.getAttributes() != null) {
+ b.setCNextHop(message.getAttributes().getCNextHop());
+ }
+ return b.build();
+ }
+
+ /**
+ * Create MPUnreach for the prefixes to be handled in the same way as linkstate routes.
+ *
+ * @param message Update message containing withdrawn routes
+ * @param isAnyNlriAnnounced isAnyNlriAnnounced
+ * @return MpUnreachNlri with prefixes from the withdrawn routes field
+ */
+ private static MpUnreachNlri prefixesToMpUnreach(final Update message, final boolean isAnyNlriAnnounced) {
+ final List<Ipv4Prefixes> prefixes = new ArrayList<>();
+ message.getWithdrawnRoutes().forEach(w -> {
+
+ Optional<Nlri> nlriAnounced = Optional.empty();
+ if (isAnyNlriAnnounced) {
+ nlriAnounced = message.getNlri().stream().filter(n -> Objects.equals(n.getPrefix(), w.getPrefix())
+ && Objects.equals(n.getPathId(), w.getPathId()))
+ .findAny();
+ }
+ if (!nlriAnounced.isPresent()) {
+ prefixes.add(new Ipv4PrefixesBuilder().setPrefix(w.getPrefix()).setPathId(w.getPathId()).build());
+ }
+ });
+ return new MpUnreachNlriBuilder().setAfi(Ipv4AddressFamily.VALUE).setSafi(UnicastSubsequentAddressFamily.VALUE)
+ .setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(new org.opendaylight.yang.gen.v1
+ .urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.unreach.nlri
+ .withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
+ new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build()).build()).build()).build();
+ }
- // add current peer to "configured BGP peer" stats
- this.rib.getRenderStats().getConfiguredPeerCounter().increaseCount();
+ private static ImmutableMap<TablesKey, SendReceive> mapTableTypesFamilies(
+ final List<AddressFamilies> addPathTablesType) {
+ return addPathTablesType.stream().collect(ImmutableMap.toImmutableMap(
+ af -> new TablesKey(af.getAfi(), af.getSafi()), BgpAddPathTableType::getSendReceive));
}
- public BGPPeer(final String name, final RIB rib, final PeerRole role, final RpcProviderRegistry rpcRegistry) {
- this(name, rib, role, null, rpcRegistry);
+ public synchronized void instantiateServiceInstance() {
+ createDomChain();
+ ribWriter = AdjRibInWriter.create(rib.getYangRibId(), getRole(), this);
+ setActive(true);
}
@Override
- public synchronized void close() {
- releaseConnection();
- this.chain.close();
+ public synchronized FluentFuture<? extends CommitInfo> close() {
+ final FluentFuture<? extends CommitInfo> future = releaseConnection(true);
+ closeDomChain();
+ setActive(false);
+ return future;
}
@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);
+ public void onMessage(final BGPSession session, final Notification<?> msg) throws BGPDocumentedException {
+ if (msg instanceof Update update) {
+ onUpdateMessage(update);
+ } else if (msg instanceof RouteRefresh routeRefresh) {
+ onRouteRefreshMessage(routeRefresh);
} else {
- onRouteRefreshMessage((RouteRefresh) msg, session);
+ LOG.info("Ignoring unhandled message class {}", msg.getClass());
}
}
- private void onRouteRefreshMessage(final RouteRefresh message, final BGPSession session) {
- final Class<? extends AddressFamily> rrAfi = message.getAfi();
- final Class<? extends SubsequentAddressFamily> rrSafi = message.getSafi();
+ private void onRouteRefreshMessage(final RouteRefresh message) {
+ final var rrAfi = message.getAfi();
+ final var 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(listener);
- createAdjRibOutListener(RouterIds.createPeerId(session.getBgpId()), key, listener.isMpSupported());
- } else {
- LOG.info("Ignoring RouteRefresh message. Afi/Safi is not supported: {}, {}.", rrAfi, rrSafi);
+ synchronized (this) {
+ final AdjRibOutListener listener = 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);
+ }
}
}
/**
- * Check for presence of well known mandatory attribute LOCAL_PREF in Update message
+ * Check for presence of well known mandatory attribute LOCAL_PREF in Update message.
*
* @param message Update message
- * @throws BGPDocumentedException
*/
private void checkMandatoryAttributesPresence(final Update message) throws BGPDocumentedException {
if (MessageUtil.isAnyNlriPresent(message)) {
final Attributes attrs = message.getAttributes();
- if (this.peerRole == PeerRole.Ibgp && (attrs == null || attrs.getLocalPref() == null)) {
+ if (getRole() == PeerRole.Ibgp && (attrs == null || attrs.getLocalPref() == null)) {
throw new BGPDocumentedException(BGPError.MANDATORY_ATTR_MISSING_MSG + "LOCAL_PREF",
BGPError.WELL_KNOWN_ATTR_MISSING,
- new byte[] { LocalPreferenceAttributeParser.TYPE });
+ new byte[]{LocalPreferenceAttributeParser.TYPE});
}
}
}
* Calls {@link #checkMandatoryAttributesPresence(Update)} to check for presence of mandatory attributes.
*
* @param message Update message
- * @throws BGPDocumentedException
*/
- private void onUpdateMessage(final Update message) throws BGPDocumentedException {
+ private synchronized void onUpdateMessage(final Update message) throws BGPDocumentedException {
checkMandatoryAttributesPresence(message);
// update AdjRibs
final Attributes attrs = message.getAttributes();
- MpReachNlri mpReach = null;
+ MpReachNlri mpReach;
final boolean isAnyNlriAnnounced = message.getNlri() != null;
if (isAnyNlriAnnounced) {
mpReach = prefixesToMpReach(message);
mpReach = MessageUtil.getMpReachNlri(attrs);
}
if (mpReach != null) {
- this.ribWriter.updateRoutes(mpReach, nextHopToAttribute(attrs, mpReach));
+ ribWriter.updateRoutes(mpReach, nextHopToAttribute(attrs, mpReach));
}
- MpUnreachNlri mpUnreach = null;
+ 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);
- }
- }
-
- private static Attributes nextHopToAttribute(final Attributes attrs, final MpReachNlri mpReach) {
- if (attrs.getCNextHop() == null && mpReach.getCNextHop() != null) {
- final AttributesBuilder attributesBuilder = new AttributesBuilder(attrs);
- attributesBuilder.setCNextHop(mpReach.getCNextHop());
- return attributesBuilder.build();
+ if (endOfRib) {
+ final TablesKey tablesKey = new TablesKey(mpUnreach.getAfi(), mpUnreach.getSafi());
+ ribWriter.removeStaleRoutes(tablesKey);
+ missingEOT.remove(tablesKey);
+ handleGracefulEndOfRib();
+ } else {
+ ribWriter.removeRoutes(mpUnreach);
+ }
+ } else if (endOfRib) {
+ ribWriter.removeStaleRoutes(IPV4_UCAST_TABLE_KEY);
+ missingEOT.remove(IPV4_UCAST_TABLE_KEY);
+ handleGracefulEndOfRib();
}
- return attrs;
}
- /**
- * Creates MPReach for the prefixes to be handled in the same way as linkstate routes
- *
- * @param message Update message containing prefixes in NLRI
- * @return MpReachNlri with prefixes from the nlri field
- */
- private static MpReachNlri prefixesToMpReach(final Update message) {
- final List<Ipv4Prefixes> prefixes = new ArrayList<>();
- for (final Ipv4Prefix p : message.getNlri().getNlri()) {
- prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
- }
- final MpReachNlriBuilder b = new MpReachNlriBuilder().setAfi(Ipv4AddressFamily.class).setSafi(
- UnicastSubsequentAddressFamily.class).setAdvertizedRoutes(
- new AdvertizedRoutesBuilder().setDestinationType(
- new DestinationIpv4CaseBuilder().setDestinationIpv4(
- new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build()).build()).build());
- if (message.getAttributes() != null) {
- b.setCNextHop(message.getAttributes().getCNextHop());
+ @Holding("this")
+ private void handleGracefulEndOfRib() {
+ if (isLocalRestarting()) {
+ if (missingEOT.isEmpty()) {
+ createEffRibInWriter();
+ effRibInWriter.init();
+ registerPrefixesCounters(effRibInWriter, effRibInWriter);
+ for (final TablesKey key : getAfiSafisAdvertized()) {
+ createAdjRibOutListener(key, true);
+ }
+ setLocalRestartingState(false);
+ setGracefulPreferences(false, Collections.emptySet());
+ }
}
- return b.build();
}
- /**
- * Create MPUnreach for the prefixes to be handled in the same way as linkstate routes
- *
- * @param message Update message containing withdrawn routes
- * @param isAnyNlriAnnounced
- * @return MpUnreachNlri with prefixes from the withdrawn routes field
- */
- private static MpUnreachNlri prefixesToMpUnreach(final Update message, final boolean isAnyNlriAnnounced) {
- final List<Ipv4Prefixes> prefixes = new ArrayList<>();
- for (final Ipv4Prefix p : message.getWithdrawnRoutes().getWithdrawnRoutes()) {
- boolean nlriAnounced = false;
- if(isAnyNlriAnnounced) {
- nlriAnounced = message.getNlri().getNlri().contains(p);
+ @Override
+ public synchronized void onSessionUp(final BGPSession session) {
+ currentSession = session;
+ sessionUp = true;
+
+ final var chain = rib.createPeerDOMChain();
+ ribOutChain = chain;
+ chain.addCallback(new FutureCallback<Empty>() {
+ @Override
+ public void onSuccess(final Empty result) {
+ LOG.debug("RibOut transaction chain {} successful.", chain);
}
- if(!nlriAnounced) {
- prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
+ @Override
+ public void onFailure(final Throwable cause) {
+ onRibOutChainFailed(cause);
}
+ });
+
+ if (currentSession instanceof BGPSessionStateProvider stateProvider) {
+ stateProvider.registerMessagesCounter(this);
}
- return new MpUnreachNlriBuilder().setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class).setWithdrawnRoutes(
- new WithdrawnRoutesBuilder().setDestinationType(
- new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
- new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build()).build()).build()).build();
- }
+ final GracefulRestartCapability advertisedGracefulRestartCapability =
+ session.getAdvertisedGracefulRestartCapability();
+ final var advertisedTables = advertisedGracefulRestartCapability.getTables();
+ final var advertisedLLTables = session.getAdvertisedLlGracefulRestartCapability().getTables();
- @Override
- public synchronized void onSessionUp(final BGPSession session) {
final List<AddressFamilies> addPathTablesType = session.getAdvertisedAddPathTableTypes();
- LOG.info("Session with peer {} went up with tables {} and Add Path tables {}", this.name, addPathTablesType,
- session.getAdvertisedAddPathTableTypes());
- this.session = session;
-
- this.rawIdentifier = InetAddresses.forString(session.getBgpId().getValue()).getAddress();
- final PeerId peerId = RouterIds.createPeerId(session.getBgpId());
-
- this.tables.addAll(this.session.getAdvertisedTableTypes().stream().map(t -> new TablesKey(t.getAfi(), t.getSafi())).collect(Collectors.toList()));
- final boolean announceNone = isAnnounceNone(this.simpleRoutingPolicy);
- if(!announceNone) {
- createAdjRibOutListener(peerId);
+ final Set<BgpTableType> advertizedTableTypes = session.getAdvertisedTableTypes();
+ LOG.info("Session with peer {} went up with tables {} and Add Path tables {}", getName(),
+ advertizedTableTypes, addPathTablesType);
+ final Set<TablesKey> setTables = advertizedTableTypes.stream().map(t -> new TablesKey(t.getAfi(), t.getSafi()))
+ .collect(Collectors.toSet());
+ tables = ImmutableSet.copyOf(setTables);
+
+ addPathTableMaps = mapTableTypesFamilies(addPathTablesType);
+ final boolean restartingLocally = isLocalRestarting();
+ if (!restartingLocally) {
+ addBgp4Support();
+ }
+ if (!isRestartingGracefully()) {
+ 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(peerId));
+ peerPath = createPeerPath(peerId);
+ peerRibOutIId = peerPath.node(ADJRIBOUT_NID);
+ trackerRegistration = rib.getPeerTracker().registerPeer(this);
+ createEffRibInWriter();
+ registerPrefixesCounters(effRibInWriter, effRibInWriter);
+
+ effRibInWriter.init();
+ ribWriter = ribWriter.transform(peerId, peerPath, rib.getRibSupportContext(),
+ tables, addPathTableMaps);
+
+ if (rpcRegistry != null) {
+ final var bgpPeerHandler = new BgpPeerRpc(this, session, tables);
+ rpcRegistration = rpcRegistry.registerRpcImplementations(
+ ImmutableClassToInstanceMap.<Rpc<?, ?>>builder()
+ .put(ResetSession.class, bgpPeerHandler::resetSession)
+ .put(RestartGracefully.class, bgpPeerHandler::restartGracefully)
+ .put(RouteRefreshRequest.class, bgpPeerHandler::routeRefreshRequest)
+ .build(),
+ ImmutableSet.of(rib.getInstanceIdentifier().child(
+ org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.bgp.rib.rib
+ .Peer.class, new PeerKey(peerId))));
+ }
+ } else {
+ final Set<TablesKey> forwardingTables;
+ if (advertisedTables == null) {
+ forwardingTables = Collections.emptySet();
+ } else {
+ forwardingTables = advertisedTables.values().stream()
+ .filter(table -> table.getAfiFlags() != null)
+ .filter(table -> table.getAfiFlags().getForwardingState())
+ .map(table -> new TablesKey(table.getAfi(), table.getSafi()))
+ .collect(Collectors.toSet());
+ }
+ ribWriter.clearTables(Sets.difference(tables, forwardingTables));
+ if (restartingLocally) {
+ effRibInWriter.close();
+ peerRestartStopwatch = Stopwatch.createStarted();
+ handleSelectionReferralTimer();
+ missingEOT.addAll(tables);
+ }
+ }
+ if (advertisedTables == null || advertisedTables.isEmpty()) {
+ setAdvertizedGracefulRestartTableTypes(Collections.emptyList());
+ } else {
+ setAdvertizedGracefulRestartTableTypes(advertisedTables.values().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 (var table : advertisedLLTables.values()) {
+ llTablesReceived.put(new TablesKey(table.getAfi(), table.getSafi()),
+ table.getLongLivedStaleTime().getValue().intValue());
+ }
+ } else {
+ llTablesReceived = Collections.emptyMap();
}
- addBgp4Support(peerId, announceNone);
+ setAdvertizedLlGracefulRestartTableTypes(llTablesReceived);
- if(!isLearnNone(this.simpleRoutingPolicy)) {
- final YangInstanceIdentifier peerIId = this.rib.getYangRibId().node(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer.QNAME).node(IdentifierUtils.domPeerId(peerId));
- this.effRibInWriter = EffectiveRibInWriter.create(this.rib.getService(), this.rib.createPeerChain(this), peerIId, this.rib.getImportPolicyPeerTracker(),
- this.rib.getRibSupportContext(), this.peerRole, this.peerStats.getEffectiveRibInRouteCounters(), this.peerStats.getAdjRibInRouteCounters());
+ if (!llTablesReceived.isEmpty()) {
+ llgrSupport = true;
+ // FIXME: propagate preserved tables
+ } else {
+ // FIXME: clear preserved tables
+ llgrSupport = false;
}
- this.ribWriter = this.ribWriter.transform(peerId, this.rib.getRibSupportContext(), this.tables, addPathTablesType);
- // register BGP Peer stats
- this.peerStats.getSessionEstablishedCounter().increaseCount();
- if (this.registrator != null) {
- this.runtimeReg = this.registrator.register(this);
+ if (!restartingLocally) {
+ if (!setTables.contains(IPV4_UCAST_TABLE_KEY)) {
+ createAdjRibOutListener(IPV4_UCAST_TABLE_KEY, false);
+ }
+ for (final TablesKey key : getAfiSafisAdvertized()) {
+ createAdjRibOutListener(key, true);
+ }
}
- if (this.rpcRegistry != null) {
- this.rpcRegistration = this.rpcRegistry.addRoutedRpcImplementation(BgpPeerRpcService.class, new BgpPeerRpc(session, this.tables));
- final KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer, PeerKey> path =
- this.rib.getInstanceIdentifier().child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer.class, new PeerKey(peerId));
- this.rpcRegistration.registerPath(PeerContext.class, path);
+ // SpotBugs does not grok Optional.ifPresent() and thinks we are using unsynchronized access
+ final Optional<RevisedErrorHandlingSupport> errorHandling = bgpPeer.getErrorHandling();
+ if (errorHandling.isPresent()) {
+ currentSession.addDecoderConstraint(RevisedErrorHandlingSupport.class, errorHandling.orElseThrow());
}
+ }
- this.rib.getRenderStats().getConnectedPeerCounter().increaseCount();
+ private boolean isRestartingGracefully() {
+ return isLocalRestarting() || isPeerRestarting();
}
- private void createAdjRibOutListener(final PeerId peerId) {
- this.tables.forEach(key->createAdjRibOutListener(peerId, key, true));
+ private synchronized void createEffRibInWriter() {
+ final var chain = rib.createPeerDOMChain();
+ chain.addCallback(this);
+
+ effRibInWriter = new EffectiveRibInWriter(this, rib, chain, peerPath, tables, tableTypeRegistry, rtMemberships,
+ rtCache);
}
//try to add a support for old-school BGP-4, if peer did not advertise IPv4-Unicast MP capability
- private void addBgp4Support(final PeerId peerId, final boolean announceNone) {
- final TablesKey key = new TablesKey(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
- if (this.tables.add(key) && !announceNone) {
- createAdjRibOutListener(peerId, key, false);
+ @Holding("this")
+ private void addBgp4Support() {
+ if (!tables.contains(IPV4_UCAST_TABLE_KEY)) {
+ final HashSet<TablesKey> newSet = new HashSet<>(tables);
+ newSet.add(IPV4_UCAST_TABLE_KEY);
+ tables = ImmutableSet.copyOf(newSet);
}
}
- private void createAdjRibOutListener(final PeerId peerId, final TablesKey key, final boolean mpSupport) {
- final RIBSupportContext context = this.rib.getRibSupportContext().getRIBSupportContext(key);
+ @Holding("this")
+ private void createAdjRibOutListener(final TablesKey key, final boolean mpSupport) {
+ final RIBSupport<?, ?> ribSupport = rib.getRibSupportContext().getRIBSupport(key);
// not particularly nice
- if (context != null && this.session instanceof BGPSessionImpl) {
- this.adjRibOutListenerSet.put(key, AdjRibOutListener.create(peerId, key, this.rib.getYangRibId(), this.rib.getCodecsRegistry(),
- context.getRibSupport(), this.rib.getService(), ((BGPSessionImpl) this.session).getLimiter(), mpSupport, this.peerStats.getAdjRibOutRouteCounters().init(key)));
+ if (ribSupport != null && currentSession instanceof BGPSessionImpl bgpSession) {
+ final AdjRibOutListener adjRibOut = AdjRibOutListener.create(peerId, rib.getYangRibId(),
+ rib.getCodecsRegistry(), ribSupport, rib.getService(), bgpSession.getLimiter(), mpSupport);
+ adjRibOutListenerSet.put(key, adjRibOut);
+ registerPrefixesSentCounter(key, adjRibOut);
}
}
- private synchronized void cleanup() {
- // FIXME: BUG-196: support graceful
- for (final AdjRibOutListener adjRibOutListener : this.adjRibOutListenerSet.values()) {
- adjRibOutListener.close();
- }
- this.adjRibOutListenerSet.clear();
- if (this.effRibInWriter != null) {
- this.effRibInWriter.close();
- }
- this.ribWriter.removePeer();
- this.tables.clear();
- }
-
@Override
- public void onSessionDown(final BGPSession session, final Exception e) {
- if(e.getMessage().equals(BGPSessionImpl.END_OF_INPUT)) {
- LOG.info("Session with peer {} went down", this.name);
+ 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", getName());
} else {
- LOG.info("Session with peer {} went down", this.name, e);
+ LOG.info("Session with peer {} went down", getName(), exc);
}
- releaseConnection();
+ releaseConnectionGracefully();
}
@Override
- public void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
- LOG.info("Session with peer {} terminated: {}", this.name, cause);
- releaseConnection();
+ public synchronized void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
+ LOG.info("Session with peer {} terminated: {}", getName(), cause);
+ releaseConnectionGracefully();
}
@Override
public String toString() {
- return addToStringAttributes(MoreObjects.toStringHelper(this)).toString();
- }
-
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- toStringHelper.add("name", this.name);
- toStringHelper.add("tables", this.tables);
- return toStringHelper;
+ return MoreObjects.toStringHelper(this).add("name", getName()).add("tables", tables).toString();
}
@Override
- public String getName() {
- return this.name;
+ public synchronized FluentFuture<? extends CommitInfo> releaseConnection() {
+ return releaseConnection(true);
}
- @Override
- public void releaseConnection() {
- if (this.rpcRegistration != null) {
- this.rpcRegistration.close();
+ /**
+ * On transaction chain failure, we don't want to wait for future.
+ *
+ * @param isWaitForSubmitted if true, wait for submitted future before closing binding chain. if false, don't wait.
+ */
+ @Holding("this")
+ private @NonNull FluentFuture<? extends CommitInfo> releaseConnection(final boolean isWaitForSubmitted) {
+ LOG.info("Closing session with peer");
+ sessionUp = false;
+ adjRibOutListenerSet.values().forEach(AdjRibOutListener::close);
+ adjRibOutListenerSet.clear();
+ final FluentFuture<? extends CommitInfo> future;
+ // FIXME: this is a typical example of something which should be handled by a behavior into which we have
+ // transitioned way before this method is called. This really begs to be an abstract base class with
+ // a 'clearTables' or similar callout
+ if (isRestartingGracefully()) {
+ final Set<TablesKey> gracefulTables = getGracefulTables();
+ ribWriter.storeStaleRoutes(gracefulTables);
+ future = ribWriter.clearTables(Sets.difference(tables, gracefulTables));
+ if (isPeerRestarting()) {
+ peerRestartStopwatch = Stopwatch.createStarted();
+ handleRestartTimer();
+ }
+ } else {
+ future = terminateConnection();
}
- addPeerToDisconnectedSharedList();
- cleanup();
- dropConnection();
- }
+ releaseRibOutChain(isWaitForSubmitted);
- private void addPeerToDisconnectedSharedList() {
- if(this.session != null) {
- this.rib.getCacheDisconnectedPeers().insertDesconectedPeer(this.session.getBgpId());
- }
+ closeSession();
+ return future;
}
- @GuardedBy("this")
- private void dropConnection() {
- if (this.runtimeReg != null) {
- this.runtimeReg.close();
- this.runtimeReg = null;
- }
- if (this.session != null) {
+ @Holding("this")
+ @SuppressWarnings("checkstyle:illegalCatch")
+ private void closeSession() {
+ if (currentSession != null) {
try {
- this.session.close();
+ if (isRestartingGracefully()) {
+ currentSession.closeWithoutMessage();
+ } else {
+ currentSession.close();
+ }
} catch (final Exception e) {
LOG.warn("Error closing session with peer", e);
}
- this.session = null;
+ currentSession = null;
+ }
+ }
+
+ private Set<TablesKey> getGracefulTables() {
+ return tables.stream()
+ .filter(this::isGracefulRestartReceived)
+ .filter(this::isGracefulRestartAdvertized)
+ .collect(Collectors.toSet());
+ }
+
+ private synchronized FluentFuture<? extends CommitInfo> terminateConnection() {
+ if (trackerRegistration != null) {
+ trackerRegistration.close();
+ trackerRegistration = null;
+ }
+ if (rpcRegistration != null) {
+ rpcRegistration.close();
+ }
+ ribWriter.releaseChain();
+
+ if (effRibInWriter != null) {
+ effRibInWriter.close();
+ }
+ tables = ImmutableSet.of();
+ addPathTableMaps = ImmutableMap.of();
+ final var future = removePeer(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 = peerRestartStopwatch.elapsed(TimeUnit.NANOSECONDS);
+ if (elapsedNanos >= peerRestartTimeNanos) {
+ setAfiSafiGracefulRestartState(0, false, false);
+ onSessionTerminated(currentSession, new BGPTerminationReason(BGPError.HOLD_TIMER_EXPIRED));
+ }
+
+ currentSession.schedule(this::handleRestartTimer, peerRestartTimeNanos - elapsedNanos, TimeUnit.NANOSECONDS);
+ }
+
+ private synchronized void handleSelectionReferralTimer() {
+ if (!isLocalRestarting()) {
+ return;
+ }
- this.rib.getRenderStats().getConnectedPeerCounter().decreaseCount();
+ final long referalTimerNanos = TimeUnit.SECONDS.toNanos(currentSelectionDeferralTimerSeconds);
+ final long elapsedNanos = peerRestartStopwatch.elapsed(TimeUnit.NANOSECONDS);
+ if (elapsedNanos >= referalTimerNanos) {
+ missingEOT.clear();
+ handleGracefulEndOfRib();
}
+ currentSession.schedule(this::handleSelectionReferralTimer, referalTimerNanos - elapsedNanos,
+ TimeUnit.NANOSECONDS);
}
+ @Holding("this")
+ private void releaseConnectionGracefully() {
+ if (getPeerRestartTime() > 0) {
+ setRestartingState();
+ }
+ releaseConnection(true);
+ }
+
+ @SuppressFBWarnings("IS2_INCONSISTENT_SYNC")
@Override
- public boolean isSessionActive() {
- return this.session != null;
+ public SendReceive getSupportedAddPathTables(final TablesKey tableKey) {
+ return addPathTableMaps.get(tableKey);
}
@Override
- public synchronized byte[] getRawIdentifier() {
- return Arrays.copyOf(this.rawIdentifier, this.rawIdentifier.length);
+ public boolean supportsTable(final TablesKey tableKey) {
+ return sessionUp && getAfiSafisAdvertized().contains(tableKey) && tables.contains(tableKey);
}
@Override
- public void resetSession() {
- releaseConnection();
+ public YangInstanceIdentifier getRibOutIId(final NodeIdentifierWithPredicates tablekey) {
+ return tablesIId.getUnchecked(tablekey);
}
@Override
- public void resetStats() {
- if (this.session instanceof BGPSessionStats) {
- ((BGPSessionStats) this.session).resetBgpSessionStats();
- }
+ public synchronized void onFailure(final Throwable cause) {
+ LOG.error("Transaction domChain failed.", cause);
+ releaseConnection(true);
}
- public synchronized void registerRootRuntimeBean(final BGPPeerRuntimeRegistrator registrator) {
- this.registrator = registrator;
+ private synchronized void onRibOutChainFailed(final Throwable cause) {
+ LOG.error("RibOut transaction chain failed.", cause);
+ releaseConnection(false);
}
@Override
- public BgpSessionState getBgpSessionState() {
- if (this.session instanceof BGPSessionStats) {
- return ((BGPSessionStats) this.session).getBgpSessionState();
+ public synchronized void markUptodate(final TablesKey tablesKey) {
+ ribWriter.markTableUptodate(tablesKey);
+ }
+
+ @Override
+ public synchronized BGPSessionState getBGPSessionState() {
+ if (currentSession instanceof BGPSessionStateProvider stateProvider) {
+ return stateProvider.getBGPSessionState();
}
- return new BgpSessionState();
+ return null;
}
@Override
- public synchronized BgpPeerState getBgpPeerState() {
- return this.peerStats.getBgpPeerState();
+ public synchronized BGPTimersState getBGPTimersState() {
+ if (currentSession instanceof BGPSessionStateProvider stateProvider) {
+ return stateProvider.getBGPTimersState();
+ }
+ return null;
}
@Override
- public void onTransactionChainFailed(final TransactionChain<?, ?> chain, final AsyncTransaction<?, ?> transaction, final Throwable cause) {
- LOG.error("Transaction chain failed.", cause);
- this.chain.close();
- this.chain = this.rib.createPeerChain(this);
- this.ribWriter = AdjRibInWriter.create(this.rib.getYangRibId(), this.peerRole, this.simpleRoutingPolicy, this.chain);
- releaseConnection();
+ public synchronized BGPTransportState getBGPTransportState() {
+ if (currentSession instanceof BGPSessionStateProvider stateProvider) {
+ return stateProvider.getBGPTransportState();
+ }
+ return null;
}
@Override
- public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
- LOG.debug("Transaction chain {} successfull.", chain);
+ public List<RouteTarget> getMemberships() {
+ return 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.", peerId);
+ return Futures.immediateFailedFuture(new UnsupportedOperationException(
+ "Peer is not capable of graceful restart"));
+ }
+ setGracefulPreferences(true, tablesToPreserve);
+ currentSelectionDeferralTimerSeconds = selectionDeferralTimerSeconds;
+ setLocalRestartingState(true);
+ return releaseConnection(true);
}
@Override
- public void markUptodate(final TablesKey tablesKey) {
- this.ribWriter.markTableUptodate(tablesKey);
+ boolean supportsLLGR() {
+ return llgrSupport;
+ }
+
+ private synchronized void setGracefulPreferences(final boolean localRestarting,
+ final Set<TablesKey> preservedTables) {
+ final Set<TablesKey> gracefulTables = tables.stream()
+ .filter(this::isGracefulRestartAdvertized)
+ .collect(Collectors.toSet());
+ final BgpParameters bgpParameters = GracefulRestartUtil.getGracefulBgpParameters(
+ bgpPeer.getBgpFixedCapabilities(), gracefulTables, preservedTables,
+ bgpPeer.getGracefulRestartTimer(), localRestarting, Collections.emptySet());
+ final BGPSessionPreferences oldPrefs = rib.getDispatcher().getBGPPeerRegistry()
+ .getPeerPreferences(getNeighborAddress());
+ final BGPSessionPreferences newPrefs = new BGPSessionPreferences(
+ oldPrefs.getMyAs(),
+ oldPrefs.getHoldTime(),
+ oldPrefs.getBgpId(),
+ oldPrefs.getExpectedRemoteAs(),
+ Collections.singletonList(bgpParameters),
+ oldPrefs.getMd5Password());
+ rib.getDispatcher().getBGPPeerRegistry()
+ .updatePeerPreferences(getNeighborAddress(), newPrefs);
}
}
Code Review / bgpcep.git / blobdiff