BUG-338 Allow incomming BGP connections.
[bgpcep.git] / bgp / rib-impl / src / main / java / org / opendaylight / protocol / bgp / rib / impl / BGPDispatcherImpl.java
index 13b17b090b157a843f08e9fdd49391301b6a000f..9065f3cc00fcdff8b4f00c06c7d0078249b622f8 100644 (file)
  */
 package org.opendaylight.protocol.bgp.rib.impl;
 
+import com.google.common.base.Preconditions;
+import io.netty.bootstrap.Bootstrap;
+import io.netty.bootstrap.ServerBootstrap;
+import io.netty.channel.ChannelFuture;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.socket.SocketChannel;
-import io.netty.util.HashedWheelTimer;
 import io.netty.util.Timer;
 import io.netty.util.concurrent.Future;
 import io.netty.util.concurrent.Promise;
-
 import java.net.InetSocketAddress;
-
-import org.opendaylight.protocol.bgp.parser.BGPMessageFactory;
+import org.opendaylight.bgpcep.tcpmd5.KeyMapping;
+import org.opendaylight.bgpcep.tcpmd5.netty.MD5ChannelFactory;
+import org.opendaylight.bgpcep.tcpmd5.netty.MD5ChannelOption;
+import org.opendaylight.bgpcep.tcpmd5.netty.MD5ServerChannelFactory;
 import org.opendaylight.protocol.bgp.parser.BGPSessionListener;
+import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
+import org.opendaylight.protocol.bgp.rib.impl.client.BGPClientSessionNegotiatorFactory;
+import org.opendaylight.protocol.bgp.rib.impl.server.BGPServerSessionNegotiatorFactory;
 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPDispatcher;
-import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
+import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
+import org.opendaylight.protocol.bgp.rib.impl.spi.BGPServerDispatcher;
+import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionValidator;
 import org.opendaylight.protocol.framework.AbstractDispatcher;
 import org.opendaylight.protocol.framework.ReconnectStrategy;
 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
-import org.opendaylight.protocol.framework.SessionListenerFactory;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
 
 /**
  * Implementation of BGPDispatcher.
  */
-public final class BGPDispatcherImpl extends AbstractDispatcher<BGPSessionImpl, BGPSessionListener> implements BGPDispatcher, AutoCloseable {
-       private final Timer timer = new HashedWheelTimer();
-
-       private final BGPHandlerFactory hf;
-
-       public BGPDispatcherImpl(final BGPMessageFactory parser, final EventLoopGroup bossGroup, final EventLoopGroup workerGroup) {
-               super(bossGroup, workerGroup);
-               this.hf = new BGPHandlerFactory(parser);
-       }
-
-       @Override
-       public Future<BGPSessionImpl> createClient(final InetSocketAddress address, final BGPSessionPreferences preferences,
-                       final BGPSessionListener listener, final ReconnectStrategy strategy) {
-               final BGPSessionNegotiatorFactory snf = new BGPSessionNegotiatorFactory(this.timer, preferences);
-               final SessionListenerFactory<BGPSessionListener> slf = new SessionListenerFactory<BGPSessionListener>() {
-                       @Override
-                       public BGPSessionListener getSessionListener() {
-                               return listener;
-                       }
-               };
-               return super.createClient(address, strategy, new PipelineInitializer<BGPSessionImpl>() {
-                       @Override
-                       public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
-                               ch.pipeline().addLast(hf.getDecoders());
-                               ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(slf, ch, promise));
-                               ch.pipeline().addLast(hf.getEncoders());
-                       }
-               });
-       }
-
-       @Override
-       public Future<Void> createReconnectingClient(final InetSocketAddress address,
-                       final BGPSessionPreferences preferences, final BGPSessionListener listener,
-                       final ReconnectStrategyFactory connectStrategyFactory,
-                       final ReconnectStrategy reestablishStrategy) {
-               final BGPSessionNegotiatorFactory snf = new BGPSessionNegotiatorFactory(this.timer, preferences);
-               final SessionListenerFactory<BGPSessionListener> slf = new SessionListenerFactory<BGPSessionListener>() {
-                       @Override
-                       public BGPSessionListener getSessionListener() {
-                               return listener;
-                       }
-               };
-
-               return super.createReconnectingClient(address, connectStrategyFactory, reestablishStrategy, new PipelineInitializer<BGPSessionImpl>() {
-                       @Override
-                       public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
-                               ch.pipeline().addLast(hf.getDecoders());
-                               ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(slf, ch, promise));
-                               ch.pipeline().addLast(hf.getEncoders());
-                       }
-               });
-       }
-
-       @Override
-       public void close() {
-       }
+public final class BGPDispatcherImpl extends AbstractDispatcher<BGPSessionImpl, BGPSessionListener> implements BGPDispatcher, BGPServerDispatcher, AutoCloseable {
+    private final MD5ServerChannelFactory<?> scf;
+    private final MD5ChannelFactory<?> cf;
+    private final BGPHandlerFactory hf;
+    private final Timer timer;
+    private KeyMapping keys;
+
+    public BGPDispatcherImpl(final MessageRegistry messageRegistry, final Timer timer, final EventLoopGroup bossGroup,
+            final EventLoopGroup workerGroup) {
+        this(messageRegistry, timer, bossGroup, workerGroup, null, null);
+    }
+
+    public BGPDispatcherImpl(final MessageRegistry messageRegistry, final Timer timer, final EventLoopGroup bossGroup,
+            final EventLoopGroup workerGroup, final MD5ChannelFactory<?> cf, final MD5ServerChannelFactory<?> scf) {
+        super(bossGroup, workerGroup);
+        this.timer = Preconditions.checkNotNull(timer);
+        this.hf = new BGPHandlerFactory(messageRegistry);
+        this.cf = cf;
+        this.scf = scf;
+    }
+
+    @Override
+    public synchronized Future<BGPSessionImpl> createClient(final InetSocketAddress address,
+            final AsNumber remoteAs, final BGPPeerRegistry listener, final ReconnectStrategy strategy) {
+        final BGPClientSessionNegotiatorFactory snf = new BGPClientSessionNegotiatorFactory(this.timer, remoteAs, listener);
+        return super.createClient(address, strategy, new PipelineInitializer<BGPSessionImpl>() {
+            @Override
+            public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
+                ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
+                ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
+                ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
+            }
+        });
+    }
+
+    @Override
+    public Future<Void> createReconnectingClient(final InetSocketAddress address,
+            final AsNumber remoteAs, final BGPPeerRegistry listener, final ReconnectStrategyFactory connectStrategyFactory,
+            final ReconnectStrategyFactory reestablishStrategyFactory) {
+        return this.createReconnectingClient(address, remoteAs, listener, connectStrategyFactory, reestablishStrategyFactory,
+                null);
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public synchronized Future<Void> createReconnectingClient(final InetSocketAddress address,
+            final AsNumber remoteAs, final BGPPeerRegistry peerRegistry, final ReconnectStrategyFactory connectStrategyFactory,
+            final ReconnectStrategyFactory reestablishStrategyFactory, final KeyMapping keys) {
+        final BGPClientSessionNegotiatorFactory snf = new BGPClientSessionNegotiatorFactory(this.timer, remoteAs, peerRegistry);
+
+        this.keys = keys;
+        final Future<Void> ret = super.createReconnectingClient(address, connectStrategyFactory,
+                reestablishStrategyFactory.createReconnectStrategy(), new PipelineInitializer<BGPSessionImpl>() {
+                    @Override
+                    public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
+                        ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
+                        ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
+                        ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
+                    }
+                });
+        this.keys = null;
+
+        return ret;
+    }
+
+    @Override
+    public ChannelFuture createServer(final BGPPeerRegistry registry, final InetSocketAddress address, final BGPSessionValidator sessionValidator) {
+        return this.createServer(registry, address, sessionValidator, null);
+    }
+
+    @Override
+    public ChannelFuture createServer(final BGPPeerRegistry registry, final InetSocketAddress address, final BGPSessionValidator sessionValidator, final KeyMapping keys) {
+        final BGPServerSessionNegotiatorFactory snf = new BGPServerSessionNegotiatorFactory(this.timer, sessionValidator, registry);
+
+        this.keys = keys;
+        final ChannelFuture ret = super.createServer(address, new PipelineInitializer<BGPSessionImpl>() {
+            @Override
+            public void initializeChannel(final SocketChannel ch, final Promise<BGPSessionImpl> promise) {
+                ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getDecoders());
+                ch.pipeline().addLast("negotiator", snf.getSessionNegotiator(null, ch, promise));
+                ch.pipeline().addLast(BGPDispatcherImpl.this.hf.getEncoders());
+            }
+        });
+        this.keys = null;
+
+        return ret;
+    }
+
+    @Override
+    protected void customizeBootstrap(final Bootstrap b) {
+        if (keys != null && !keys.isEmpty()) {
+            if (cf == null) {
+                throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
+            }
+            b.channelFactory(cf);
+            b.option(MD5ChannelOption.TCP_MD5SIG, keys);
+        }
+    }
+
+    @Override
+    protected void customizeBootstrap(final ServerBootstrap b) {
+        if (keys != null && !keys.isEmpty()) {
+            if (scf == null) {
+                throw new UnsupportedOperationException("No key access instance available, cannot use key mapping");
+            }
+            b.channelFactory(scf);
+            b.option(MD5ChannelOption.TCP_MD5SIG, keys);
+        }
+    }
+
 }