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

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import io.netty.bootstrap.Bootstrap;
  11 import io.netty.bootstrap.ServerBootstrap;
  12 import io.netty.channel.ChannelFuture;
  13 import io.netty.channel.EventLoopGroup;
  14 import io.netty.channel.socket.SocketChannel;
  15 import io.netty.util.concurrent.Future;
  16 import io.netty.util.concurrent.Promise;
  17 import java.net.InetSocketAddress;
  18 import org.opendaylight.protocol.bgp.parser.BGPSessionListener;
  19 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
  20 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPDispatcher;
  21 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  22 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionValidator;
  23 import org.opendaylight.protocol.framework.AbstractDispatcher;
  24 import org.opendaylight.protocol.framework.ReconnectStrategy;
  25 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
  26 import org.opendaylight.tcpmd5.api.KeyMapping;
  27 import org.opendaylight.tcpmd5.netty.MD5ChannelFactory;
  28 import org.opendaylight.tcpmd5.netty.MD5ChannelOption;
  29 import org.opendaylight.tcpmd5.netty.MD5ServerChannelFactory;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
  31
  32 /**
  33  * Implementation of BGPDispatcher.
  34  */
  35 public final class BGPDispatcherImpl extends AbstractDispatcher<BGPSessionImpl, BGPSessionListener> implements BGPDispatcher, AutoCloseable {
  36     private final MD5ServerChannelFactory<?> scf;
  37     private final MD5ChannelFactory<?> cf;
  38     private final BGPHandlerFactory hf;
  39     private KeyMapping keys;
  40
  41     public BGPDispatcherImpl(final MessageRegistry messageRegistry, final EventLoopGroup bossGroup, final EventLoopGroup workerGroup) {
  42         this(messageRegistry, bossGroup, workerGroup, null, null);
  43     }
  44
  45     public BGPDispatcherImpl(final MessageRegistry messageRegistry, final EventLoopGroup bossGroup, final EventLoopGroup workerGroup, final MD5ChannelFactory<?> cf, final MD5ServerChannelFactory<?> scf) {
  46         super(bossGroup, workerGroup);
  47         this.hf = new BGPHandlerFactory(messageRegistry);
  48         this.cf = cf;
  49         this.scf = scf;
  50     }
  51
  52     @Override
  53     public synchronized Future<BGPSessionImpl> createClient(final InetSocketAddress address,
  54         final AsNumber remoteAs, final BGPPeerRegistry listener, final ReconnectStrategy strategy) {
  55         final BGPClientSessionNegotiatorFactory snf = new BGPClientSessionNegotiatorFactory(remoteAs, listener);
  56         return super.createClient(address, strategy, new PipelineInitializer<BGPSessionImpl>() {
  57             @Override
  58             public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
  59                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
  60                 ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
  61                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
  62             }
  63         });
  64     }
  65
  66     @Override
  67     public Future<Void> createReconnectingClient(final InetSocketAddress address,
  68         final AsNumber remoteAs, final BGPPeerRegistry listener, final ReconnectStrategyFactory connectStrategyFactory,
  69         final ReconnectStrategyFactory reestablishStrategyFactory) {
  70         return this.createReconnectingClient(address, remoteAs, listener, connectStrategyFactory, reestablishStrategyFactory,
  71             null);
  72     }
  73
  74     @Override
  75     public void close() {
  76     }
  77
  78     @Override
  79     public synchronized Future<Void> createReconnectingClient(final InetSocketAddress address,
  80         final AsNumber remoteAs, final BGPPeerRegistry peerRegistry, final ReconnectStrategyFactory connectStrategyFactory,
  81         final ReconnectStrategyFactory reestablishStrategyFactory, final KeyMapping keys) {
  82         final BGPClientSessionNegotiatorFactory snf = new BGPClientSessionNegotiatorFactory(remoteAs, peerRegistry);
  83
  84         this.keys = keys;
  85         final Future<Void> ret = super.createReconnectingClient(address, connectStrategyFactory, reestablishStrategyFactory.createReconnectStrategy(), new PipelineInitializer<BGPSessionImpl>() {
  86             @Override
  87             public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
  88                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
  89                 ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
  90                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
  91             }
  92         });
  93         this.keys = null;
  94
  95         return ret;
  96     }
  97
  98     @Override
  99     public ChannelFuture createServer(final BGPPeerRegistry registry, final InetSocketAddress address, final BGPSessionValidator sessionValidator) {
 100         return this.createServer(registry, address, sessionValidator, null);
 101     }
 102
 103     @Override
 104     public ChannelFuture createServer(final BGPPeerRegistry registry, final InetSocketAddress address, final BGPSessionValidator sessionValidator, final KeyMapping keys) {
 105         final BGPServerSessionNegotiatorFactory snf = new BGPServerSessionNegotiatorFactory(sessionValidator, registry);
 106
 107         this.keys = keys;
 108         final ChannelFuture ret = super.createServer(address, new PipelineInitializer<BGPSessionImpl>() {
 109             @Override
 110             public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
 111                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
 112                 ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
 113                 ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
 114             }
 115         });
 116         this.keys = null;
 117
 118         return ret;
 119     }
 120
 121     @Override
 122     protected void customizeBootstrap(final Bootstrap b) {
 123         if (this.keys != null && !this.keys.isEmpty()) {
 124             if (this.cf == null) {
 125                 throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
 126             }
 127             b.channelFactory(this.cf);
 128             b.option(MD5ChannelOption.TCP_MD5SIG, this.keys);
 129         }
 130     }
 131
 132     @Override
 133     protected void customizeBootstrap(final ServerBootstrap b) {
 134         if (this.keys != null && !this.keys.isEmpty()) {
 135             if (this.scf == null) {
 136                 throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
 137             }
 138             b.channelFactory(this.scf);
 139             b.option(MD5ChannelOption.TCP_MD5SIG, this.keys);
 140         }
 141     }
 142
 143 }