*/
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 com.google.common.base.MoreObjects;
-import com.google.common.base.MoreObjects.ToStringHelper;
-import com.google.common.base.Preconditions;
+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.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.Nonnull;
-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.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.spi.RIBSupportContext;
-import org.opendaylight.protocol.bgp.rib.impl.state.BGPPeerStateImpl;
import org.opendaylight.protocol.bgp.rib.impl.state.BGPSessionStateProvider;
-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.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.ExportPolicyPeerTracker;
-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.protocol.bgp.rib.spi.state.BGPAfiSafiState;
-import org.opendaylight.protocol.bgp.rib.spi.state.BGPErrorHandlingState;
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.concepts.AbstractRegistration;
-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.Ipv4Address;
-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.BgpAddPathTableType;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
-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.SendReceive;
-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.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.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.MpUnreachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlriBuilder;
+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.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.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;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
* Class representing a peer. We have a single instance for each peer, which provides translation from BGP events into
* RIB actions.
*/
-public class BGPPeer extends BGPPeerStateImpl implements BGPSessionListener, Peer, 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.class,
+ UnicastSubsequentAddressFamily.class);
+ 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 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 final Set<TablesKey> tables = new HashSet<>();
- @GuardedBy("this")
- private BGPSession session;
- @GuardedBy("this")
- private byte[] rawIdentifier;
+ private Registration trackerRegistration;
+ private final LoadingCache<TablesKey, KeyedInstanceIdentifier<Tables, TablesKey>> tablesIId
+ = CacheBuilder.newBuilder()
+ .build(new CacheLoader<TablesKey, KeyedInstanceIdentifier<Tables, TablesKey>>() {
+ @Override
+ public KeyedInstanceIdentifier<Tables, TablesKey> load(final TablesKey tablesKey) {
+ return BGPPeer.this.peerRibOutIId.child(Tables.class, tablesKey);
+ }
+ });
+
@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;
- private YangInstanceIdentifier peerIId;
- private final Set<AbstractRegistration> tableRegistration = new HashSet<>();
-
- public BGPPeer(final String name, final RIB rib, final PeerRole role, final SimpleRoutingPolicy peerStatus,
- final RpcProviderRegistry rpcRegistry,
- @Nonnull final Set<TablesKey> afiSafisAdvertized,
- @Nonnull final Set<TablesKey> afiSafisGracefulAdvertized) {
- //FIXME BUG-6971 Once Peer Group is implemented, pass it
- super(rib.getInstanceIdentifier(), null, new IpAddress(new Ipv4Address(name)), afiSafisAdvertized,
- afiSafisGracefulAdvertized);
- this.peerRole = role;
- this.simpleRoutingPolicy = Optional.ofNullable(peerStatus);
- this.rib = Preconditions.checkNotNull(rib);
- this.name = name;
+ 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 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);
- this.chain = rib.createPeerChain(this);
+ 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.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());
+ }
+ return b.build();
}
- public BGPPeer(final String name, final RIB rib, final PeerRole role,
- final RpcProviderRegistry rpcRegistry, @Nonnull final Set<TablesKey> afiSafisAdvertized,
- @Nonnull final Set<TablesKey> afiSafisGracefulAdvertized) {
- this(name, rib, role, null, rpcRegistry, afiSafisAdvertized, afiSafisGracefulAdvertized);
+ /**
+ * 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.class).setSafi(UnicastSubsequentAddressFamily.class)
+ .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();
}
- public void instantiateServiceInstance() {
- // add current peer to "configured BGP peer" stats
- this.rib.getRenderStats().getConfiguredPeerCounter().increment();
- this.ribWriter = AdjRibInWriter.create(this.rib.getYangRibId(), this.peerRole, this.simpleRoutingPolicy, this.chain);
+ private static Map<TablesKey, SendReceive> mapTableTypesFamilies(final List<AddressFamilies> addPathTablesType) {
+ return ImmutableMap.copyOf(addPathTablesType.stream().collect(Collectors.toMap(af -> new TablesKey(af.getAfi(),
+ af.getSafi()), BgpAddPathTableType::getSendReceive)));
+ }
+
+ public synchronized void instantiateServiceInstance() {
+ createDomChain();
+ this.ribWriter = AdjRibInWriter.create(this.rib.getYangRibId(), this.peerRole, this);
+ setActive(true);
}
- // FIXME ListenableFuture<?> should be used once closeServiceInstance uses wildcard too
@Override
- public synchronized ListenableFuture<Void> close() {
- final ListenableFuture<Void> future = releaseConnection();
- this.chain.close();
+ public synchronized FluentFuture<? extends CommitInfo> close() {
+ final FluentFuture<? extends CommitInfo> future = releaseConnection();
+ 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);
+ } else if (msg instanceof RouteRefresh) {
+ onRouteRefreshMessage((RouteRefresh) msg);
} else {
- onRouteRefreshMessage((RouteRefresh) msg, session);
+ LOG.info("Ignoring unhandled message class {}", msg.getClass());
}
}
- private void onRouteRefreshMessage(final RouteRefresh message, final BGPSession session) {
+ private void onRouteRefreshMessage(final RouteRefresh message) {
final Class<? extends AddressFamily> rrAfi = message.getAfi();
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(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 = 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);
+ }
}
}
/**
- * 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)) {
if (this.peerRole == 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);
if (mpReach != null) {
this.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();
- }
- 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());
+ 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();
}
- 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);
- }
-
- if(!nlriAnounced) {
- prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
+ @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());
}
}
- 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();
}
@Override
public synchronized void onSessionUp(final BGPSession session) {
- this.session = session;
- if (this.session instanceof BGPSessionStateProvider) {
- ((BGPSessionStateProvider) this.session).registerMessagesCounter(this);
+ this.currentSession = session;
+ this.sessionUp = true;
+ this.bindingChain = this.rib.createPeerChain(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();
- final PeerId peerId = RouterIds.createPeerId(session.getBgpId());
-
- this.tables.addAll(advertizedTableTypes.stream().map(t -> new TablesKey(t.getAfi(), t.getSafi())).collect(Collectors.toList()));
-
- setAdvertizedGracefulRestartTableTypes(advertizedGracefulRestartTableTypes.stream()
- .map(t -> new TablesKey(t.getAfi(), t.getSafi())).collect(Collectors.toList()));
- final boolean announceNone = isAnnounceNone(this.simpleRoutingPolicy);
- final Map<TablesKey, SendReceive> addPathTableMaps = mapTableTypesFamilies(addPathTablesType);
- this.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));
-
- if(!announceNone) {
- createAdjRibOutListener(peerId);
- }
- this.tables.forEach(tablesKey -> {
- final ExportPolicyPeerTracker exportTracker = this.rib.getExportPolicyPeerTracker(tablesKey);
- if (exportTracker != null) {
- this.tableRegistration.add(exportTracker.registerPeer(peerId, addPathTableMaps.get(tablesKey), this.peerIId, this.peerRole,
- this.simpleRoutingPolicy));
+ LOG.info("Session with peer {} went up with tables {} and Add Path tables {}", this.name,
+ advertizedTableTypes, addPathTablesType);
+ final Set<TablesKey> setTables = advertizedTableTypes.stream().map(t -> new TablesKey(t.getAfi(), t.getSafi()))
+ .collect(Collectors.toSet());
+ this.tables = ImmutableSet.copyOf(setTables);
+
+ 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))));
}
- });
- addBgp4Support(peerId, announceNone);
+ } 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);
- if(!isLearnNone(this.simpleRoutingPolicy)) {
- this.effRibInWriter = EffectiveRibInWriter.create(this.rib.getService(), this.rib.createPeerChain(this),
- this.peerIId, this.rib.getImportPolicyPeerTracker(), this.rib.getRibSupportContext(), this.peerRole,
- this.peerStats.getAdjRibInRouteCounters(), this.tables);
- registerPrefixesCounters(this.effRibInWriter, this.effRibInWriter);
+ 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, addPathTableMaps);
- // register BGP Peer stats
- this.peerStats.getSessionEstablishedCounter().increment();
- if (this.registrator != null) {
- this.runtimeReg = this.registrator.register(this);
+ if (!restartingLocally) {
+ addBgp4Support();
+ 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 = this.bgpPeer.getErrorHandling();
+ if (errorHandling.isPresent()) {
+ this.currentSession.addDecoderConstraint(RevisedErrorHandlingSupport.class, errorHandling.get());
}
+ }
- this.rib.getRenderStats().getConnectedPeerCounter().increment();
+ private boolean isRestartingGracefully() {
+ return isLocalRestarting() || isPeerRestarting();
}
- private void createAdjRibOutListener(final PeerId peerId) {
- this.tables.forEach(key->createAdjRibOutListener(peerId, key, true));
+ 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 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 (!this.tables.contains(IPV4_UCAST_TABLE_KEY)) {
+ final HashSet<TablesKey> newSet = new HashSet<>(this.tables);
+ newSet.add(IPV4_UCAST_TABLE_KEY);
+ this.tables = ImmutableSet.copyOf(newSet);
+ createAdjRibOutListener(IPV4_UCAST_TABLE_KEY, false);
}
}
- 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 = this.rib.getRibSupportContext().getRIBSupport(key);
// not particularly nice
- if (context != null && this.session instanceof BGPSessionImpl) {
- final ChannelOutputLimiter limiter = ((BGPSessionImpl) this.session).getLimiter();
- final AdjRibOutListener adjRibOut = AdjRibOutListener.create(peerId, key,
- this.rib.getYangRibId(), this.rib.getCodecsRegistry(), context.getRibSupport(),
- this.rib.getService(), limiter, mpSupport, this.peerStats.getAdjRibOutRouteCounters().init(key));
+ 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);
this.adjRibOutListenerSet.put(key, adjRibOut);
registerPrefixesSentCounter(key, adjRibOut);
}
}
- private ListenableFuture<Void> cleanup() {
- // FIXME: BUG-196: support graceful
- this.adjRibOutListenerSet.values().forEach(AdjRibOutListener::close);
- this.adjRibOutListenerSet.clear();
- if (this.effRibInWriter != null) {
- this.effRibInWriter.close();
- }
- this.tables.clear();
- if (this.ribWriter != null) {
- return this.ribWriter.removePeer();
- }
- return Futures.immediateFuture(null);
- }
-
@Override
- public 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 void onSessionTerminated(final BGPSession session, final BGPTerminationReason cause) {
+ 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 addToStringAttributes(MoreObjects.toStringHelper(this)).toString();
+ return MoreObjects.toStringHelper(this).add("name", this.name).add("tables", this.tables).toString();
}
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- toStringHelper.add("name", this.name);
- toStringHelper.add("tables", this.tables);
- return toStringHelper;
+ @Override
+ public synchronized FluentFuture<? extends CommitInfo> releaseConnection() {
+ LOG.info("Closing session with peer");
+ 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;
}
- @Override
- public String getName() {
- return this.name;
+ @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;
+ }
}
- @Override
- public synchronized ListenableFuture<Void> releaseConnection() {
+ 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();
}
- closeRegistration();
- final ListenableFuture<Void> future = cleanup();
- dropConnection();
+ this.ribWriter.releaseChain();
+
+ if (this.effRibInWriter != null) {
+ this.effRibInWriter.close();
+ }
+ this.tables = ImmutableSet.of();
+ this.addPathTableMaps = Collections.emptyMap();
+ future = removePeer(this.peerPath);
resetState();
+
return future;
}
- private void closeRegistration() {
- for (final AbstractRegistration tableCloseable : this.tableRegistration) {
- tableCloseable.close();
+ /**
+ * If Graceful Restart Timer expires, remove all routes advertised by peer.
+ */
+ private synchronized void handleRestartTimer() {
+ if (!isPeerRestarting()) {
+ return;
}
- this.tableRegistration.clear();
- }
- private void dropConnection() {
- if (this.runtimeReg != null) {
- this.runtimeReg.close();
- this.runtimeReg = null;
+ 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));
}
- if (this.session != null) {
- try {
- this.session.close();
- } catch (final Exception e) {
- LOG.warn("Error closing session with peer", e);
- }
- this.session = null;
- this.rib.getRenderStats().getConnectedPeerCounter().decrement();
- }
+ currentSession.schedule(this::handleRestartTimer, peerRestartTimeNanos - elapsedNanos, TimeUnit.NANOSECONDS);
}
- @Override
- public synchronized byte[] getRawIdentifier() {
- return Arrays.copyOf(this.rawIdentifier, this.rawIdentifier.length);
+ 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);
}
- @Override
- public void resetSession() {
+ private void releaseConnectionGracefully() {
+ if (getPeerRestartTime() > 0) {
+ setRestartingState();
+ }
releaseConnection();
}
+ @SuppressFBWarnings("IS2_INCONSISTENT_SYNC")
@Override
- public void resetStats() {
- if (this.session instanceof BGPSessionStats) {
- ((BGPSessionStats) this.session).resetBgpSessionStats();
- }
+ public SendReceive getSupportedAddPathTables(final TablesKey tableKey) {
+ return this.addPathTableMaps.get(tableKey);
}
@Override
- public BgpSessionState getBgpSessionState() {
- if (this.session instanceof BGPSessionStats) {
- return ((BGPSessionStats) this.session).getBgpSessionState();
- }
- return new BgpSessionState();
+ public boolean supportsTable(final TablesKey tableKey) {
+ return this.sessionUp && getAfiSafisAdvertized().contains(tableKey);
}
@Override
- public synchronized BgpPeerState getBgpPeerState() {
- return this.peerStats.getBgpPeerState();
+ public KeyedInstanceIdentifier<Tables, TablesKey> getRibOutIId(final TablesKey tablesKey) {
+ return this.tablesIId.getUnchecked(tablesKey);
}
@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);
+ public synchronized void onTransactionChainFailed(final DOMTransactionChain chain,
+ final DOMDataTreeTransaction transaction, final Throwable cause) {
+ LOG.error("Transaction domChain failed.", cause);
releaseConnection();
}
@Override
- public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
- LOG.debug("Transaction chain {} successfull.", chain);
+ public synchronized void onTransactionChainFailed(final TransactionChain chain, final Transaction transaction,
+ final Throwable cause) {
+ LOG.error("Transaction domChain failed.", cause);
+ releaseConnection();
}
@Override
- public void markUptodate(final TablesKey tablesKey) {
+ public synchronized void markUptodate(final TablesKey tablesKey) {
this.ribWriter.markTableUptodate(tablesKey);
}
- private static Map<TablesKey, SendReceive> mapTableTypesFamilies(final List<AddressFamilies> addPathTablesType) {
- return ImmutableMap.copyOf(addPathTablesType.stream().collect(Collectors.toMap(af -> new TablesKey(af.getAfi(), af.getSafi()),
- BgpAddPathTableType::getSendReceive)));
- }
-
@Override
- public BGPErrorHandlingState getBGPErrorHandlingState() {
- return this;
+ public synchronized BGPSessionState getBGPSessionState() {
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPSessionState();
+ }
+ return null;
}
@Override
- public BGPAfiSafiState getBGPAfiSafiState() {
- return this;
+ public synchronized BGPTimersState getBGPTimersState() {
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPTimersState();
+ }
+ return null;
}
@Override
- public BGPSessionState getBGPSessionState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPSessionState();
+ public synchronized BGPTransportState getBGPTransportState() {
+ if (this.currentSession instanceof BGPSessionStateProvider) {
+ return ((BGPSessionStateProvider) this.currentSession).getBGPTransportState();
}
return null;
}
@Override
- public BGPTimersState getBGPTimersState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPTimersState();
- }
- return null;
+ public List<RouteTarget> getMemberships() {
+ return this.rtMemberships;
}
@Override
- public BGPTransportState getBGPTransportState() {
- if (this.session instanceof BGPSessionStateProvider) {
- return ((BGPSessionStateProvider) this.session).getBGPTransportState();
+ 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"));
}
- return null;
+ 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