bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/config/BgpPeer.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.protocol.bgp.rib.impl.config;
  10
  11 import static org.opendaylight.protocol.bgp.rib.impl.config.OpenConfigMappingUtil.getHoldTimer;
  12 import static org.opendaylight.protocol.bgp.rib.impl.config.OpenConfigMappingUtil.getPeerAs;
  13
  14 import com.google.common.base.Optional;
  15 import com.google.common.base.Preconditions;
  16 import com.google.common.collect.Iterables;
  17 import io.netty.util.concurrent.Future;
  18 import java.util.ArrayList;
  19 import java.util.List;
  20 import org.opendaylight.controller.config.yang.bgp.rib.impl.BGPPeerRuntimeMXBean;
  21 import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpPeerState;
  22 import org.opendaylight.controller.config.yang.bgp.rib.impl.BgpSessionState;
  23 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  24 import org.opendaylight.protocol.bgp.openconfig.spi.BGPOpenConfigMappingService;
  25 import org.opendaylight.protocol.bgp.parser.BgpExtendedMessageUtil;
  26 import org.opendaylight.protocol.bgp.parser.spi.MultiprotocolCapabilitiesUtil;
  27 import org.opendaylight.protocol.bgp.rib.impl.BGPPeer;
  28 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  29 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  30 import org.opendaylight.protocol.bgp.rib.impl.spi.RIB;
  31 import org.opendaylight.protocol.concepts.KeyMapping;
  32 import org.opendaylight.protocol.util.Ipv4Util;
  33 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.Neighbor;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilities;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.AddPathCapabilityBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapabilityBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.add.path.capability.AddressFamilies;
  47 import org.osgi.framework.ServiceRegistration;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51
  52 public class BgpPeer implements PeerBean, BGPPeerRuntimeMXBean {
  53
  54     private static final Logger LOG = LoggerFactory.getLogger(BgpPeer.class);
  55
  56     private final RpcProviderRegistry rpcRegistry;
  57     private final BGPPeerRegistry peerRegistry;
  58     private BGPPeer bgpPeer;
  59
  60     private Future<Void> connection;
  61
  62     private ServiceRegistration<?> serviceRegistration;
  63     private Neighbor currentConfiguration;
  64
  65     public BgpPeer(final RpcProviderRegistry rpcRegistry, final BGPPeerRegistry peerRegistry) {
  66         this.rpcRegistry = rpcRegistry;
  67         this.peerRegistry = peerRegistry;
  68     }
  69
  70     @Override
  71     public void start(final RIB rib, final Neighbor neighbor, final BGPOpenConfigMappingService mappingService) {
  72         Preconditions.checkState(this.bgpPeer == null, "Previous peer instance {} was not closed.");
  73         this.currentConfiguration = Preconditions.checkNotNull(neighbor);
  74         final IpAddress neighborAddress = neighbor.getNeighborAddress();
  75         this.bgpPeer = new BGPPeer(Ipv4Util.toStringIP(neighborAddress), rib,
  76                 mappingService.toPeerRole(neighbor), this.rpcRegistry);
  77         final List<BgpParameters> bgpParameters = getBgpParameters(neighbor, rib, mappingService);
  78         final KeyMapping key = OpenConfigMappingUtil.getNeighborKey(neighbor);
  79         final BGPSessionPreferences prefs = new BGPSessionPreferences(rib.getLocalAs(),
  80                 getHoldTimer(neighbor), rib.getBgpIdentifier(), getPeerAs(neighbor, rib), bgpParameters, getPassword(key));
  81         this.peerRegistry.addPeer(neighborAddress, this.bgpPeer, prefs);
  82         if (OpenConfigMappingUtil.isActive(neighbor)) {
  83             this.connection = rib.getDispatcher().createReconnectingClient(
  84                     Ipv4Util.toInetSocketAddress(neighborAddress, OpenConfigMappingUtil.getPort(neighbor)), this.peerRegistry,
  85                     OpenConfigMappingUtil.getRetryTimer(neighbor), Optional.fromNullable(key));
  86         }
  87
  88     }
  89
  90     @Override
  91     public void restart(final RIB rib, final BGPOpenConfigMappingService mappingService) {
  92         Preconditions.checkState(this.currentConfiguration != null);
  93         start(rib, this.currentConfiguration, mappingService);
  94     }
  95
  96     @Override
  97     public void close() {
  98         if (this.bgpPeer != null) {
  99             if (this.connection != null) {
 100                 this.connection.cancel(true);
 101                 this.connection = null;
 102             }
 103             this.bgpPeer.close();
 104             this.bgpPeer = null;
 105             this.peerRegistry.removePeer(this.currentConfiguration.getNeighborAddress());
 106             this.currentConfiguration = null;
 107             if (this.serviceRegistration != null) {
 108                 this.serviceRegistration.unregister();
 109                 this.serviceRegistration = null;
 110             }
 111         }
 112     }
 113
 114     private static List<BgpParameters> getBgpParameters(final Neighbor neighbor, final RIB rib,
 115             final BGPOpenConfigMappingService mappingService) {
 116         final List<BgpParameters> tlvs = new ArrayList<>();
 117         final List<OptionalCapabilities> caps = new ArrayList<>();
 118         caps.add(new OptionalCapabilitiesBuilder().setCParameters(new CParametersBuilder().setAs4BytesCapability(
 119                 new As4BytesCapabilityBuilder().setAsNumber(rib.getLocalAs()).build()).build()).build());
 120
 121         caps.add(new OptionalCapabilitiesBuilder().setCParameters(BgpExtendedMessageUtil.EXTENDED_MESSAGE_CAPABILITY).build());
 122         caps.add(new OptionalCapabilitiesBuilder().setCParameters(MultiprotocolCapabilitiesUtil.RR_CAPABILITY).build());
 123
 124         final List<AddressFamilies> addPathCapability = mappingService.toAddPathCapability(neighbor.getAfiSafis().getAfiSafi());
 125         if (!addPathCapability.isEmpty()) {
 126             caps.add(new OptionalCapabilitiesBuilder().setCParameters(new CParametersBuilder().addAugmentation(CParameters1.class,
 127                     new CParameters1Builder().setAddPathCapability(
 128                             new AddPathCapabilityBuilder().setAddressFamilies(addPathCapability).build()).build()).build()).build());
 129         }
 130
 131         final List<BgpTableType> tableTypes = mappingService.toTableTypes(neighbor.getAfiSafis().getAfiSafi());
 132         for (final BgpTableType tableType : tableTypes) {
 133             if (!rib.getLocalTables().contains(tableType)) {
 134                 LOG.info("RIB instance does not list {} in its local tables. Incoming data will be dropped.", tableType);
 135             }
 136
 137             caps.add(new OptionalCapabilitiesBuilder().setCParameters(
 138                     new CParametersBuilder().addAugmentation(CParameters1.class,
 139                             new CParameters1Builder().setMultiprotocolCapability(
 140                                     new MultiprotocolCapabilityBuilder(tableType).build()).build()).build()).build());
 141         }
 142         tlvs.add(new BgpParametersBuilder().setOptionalCapabilities(caps).build());
 143         return tlvs;
 144     }
 145
 146     private static Optional<byte[]> getPassword(final KeyMapping key) {
 147         if (key != null) {
 148             return Optional.of(Iterables.getOnlyElement(key.values()));
 149         }
 150         return Optional.absent();
 151     }
 152
 153     @Override
 154     public BgpPeerState getBgpPeerState() {
 155         return this.bgpPeer.getBgpPeerState();
 156     }
 157
 158     @Override
 159     public BgpSessionState getBgpSessionState() {
 160         return this.bgpPeer.getBgpSessionState();
 161     }
 162
 163     @Override
 164     public void resetStats() {
 165         this.bgpPeer.resetStats();
 166
 167     }
 168
 169     @Override
 170     public void resetSession() {
 171         this.bgpPeer.resetSession();
 172
 173     }
 174
 175     public void setServiceRegistration(final ServiceRegistration<?> serviceRegistration) {
 176         this.serviceRegistration = serviceRegistration;
 177     }
 178
 179 }