bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/BGPDispatcherImplTest.java

   1 /*
   2  * Copyright (c) 2014 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;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.base.Stopwatch;
  14 import com.google.common.collect.Lists;
  15 import com.google.common.collect.Sets;
  16 import com.google.common.util.concurrent.Uninterruptibles;
  17 import io.netty.channel.Channel;
  18 import io.netty.channel.ChannelFuture;
  19 import io.netty.channel.EventLoopGroup;
  20 import io.netty.channel.epoll.Epoll;
  21 import io.netty.channel.epoll.EpollEventLoopGroup;
  22 import io.netty.channel.nio.NioEventLoopGroup;
  23 import io.netty.util.concurrent.Future;
  24 import io.netty.util.concurrent.GenericFutureListener;
  25 import java.net.InetSocketAddress;
  26 import java.util.List;
  27 import java.util.concurrent.CountDownLatch;
  28 import java.util.concurrent.ExecutionException;
  29 import java.util.concurrent.TimeUnit;
  30 import org.junit.After;
  31 import org.junit.Assert;
  32 import org.junit.Before;
  33 import org.junit.Test;
  34 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  35 import org.opendaylight.protocol.bgp.parser.BgpExtendedMessageUtil;
  36 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  37 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
  38 import org.opendaylight.protocol.bgp.parser.spi.pojo.ServiceLoaderBGPExtensionProviderContext;
  39 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  40 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilities;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapabilityBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  57 import org.slf4j.LoggerFactory;
  58
  59 public class BGPDispatcherImplTest {
  60
  61     private static final AsNumber AS_NUMBER = new AsNumber(30L);
  62     private static final int RETRY_TIMER = 1;
  63     private static final BgpTableType IPV_4_TT = new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
  64     private BGPDispatcherImpl serverDispatcher;
  65     private TestClientDispatcher clientDispatcher;
  66     private BGPPeerRegistry registry;
  67     private SimpleSessionListener clientListener;
  68     private SimpleSessionListener serverListener;
  69     private EventLoopGroup boss;
  70     private EventLoopGroup worker;
  71
  72     @Before
  73     public void setUp() throws BGPDocumentedException {
  74         if (Epoll.isAvailable()) {
  75             this.boss = new EpollEventLoopGroup();
  76             this.worker = new EpollEventLoopGroup();
  77         } else {
  78             this.boss = new NioEventLoopGroup();
  79             this.worker = new NioEventLoopGroup();
  80         }
  81         this.registry = new StrictBGPPeerRegistry();
  82         this.clientListener = new SimpleSessionListener();
  83         final BGPExtensionProviderContext ctx = ServiceLoaderBGPExtensionProviderContext.getSingletonInstance();
  84         this.serverDispatcher = new BGPDispatcherImpl(ctx.getMessageRegistry(), this.boss, this.worker);
  85         configureClient(ctx);
  86     }
  87
  88     private static <T extends Future> void waitFutureSuccess(final T future) throws InterruptedException {
  89         final CountDownLatch latch = new CountDownLatch(1);
  90         future.addListener(future1 -> latch.countDown());
  91         Uninterruptibles.awaitUninterruptibly(latch, 10, TimeUnit.SECONDS);
  92     }
  93
  94
  95     public static void checkIdleState (final SimpleSessionListener listener){
  96         Stopwatch sw = Stopwatch.createStarted();
  97         while(sw.elapsed(TimeUnit.SECONDS) <= 10) {
  98             if (BGPSessionImpl.State.IDLE != listener.getState()){
  99                 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
 100             } else {
 101                 return;
 102             }
 103         }
 104         Assert.fail();
 105     }
 106
 107     private void configureClient(final BGPExtensionProviderContext ctx) {
 108         final InetSocketAddress clientAddress = new InetSocketAddress("127.0.11.0", 1791);
 109         final IpAddress clientPeerIp = new IpAddress(new Ipv4Address(clientAddress.getAddress().getHostAddress()));
 110         this.registry.addPeer(clientPeerIp, this.clientListener, createPreferences(clientAddress));
 111         this.clientDispatcher = new TestClientDispatcher(this.boss, this.worker, ctx.getMessageRegistry(), clientAddress);
 112     }
 113
 114     private Channel createServer(final InetSocketAddress serverAddress) throws InterruptedException {
 115         this.serverListener = new SimpleSessionListener();
 116         this.registry.addPeer(new IpAddress(new Ipv4Address(serverAddress.getAddress().getHostAddress())), this.serverListener, createPreferences(serverAddress));
 117         LoggerFactory.getLogger(BGPDispatcherImplTest.class).info("createServer");
 118         final ChannelFuture future = this.serverDispatcher.createServer(this.registry, serverAddress);
 119         future.addListener(new GenericFutureListener<Future<Void>>() {
 120             @Override
 121             public void operationComplete(final Future<Void> future) {
 122                 Preconditions.checkArgument(future.isSuccess(), "Unable to start bgp server on %s", future.cause());
 123             }
 124         });
 125         waitFutureSuccess(future);
 126         return future.channel();
 127     }
 128
 129     @After
 130     public void tearDown() throws Exception {
 131         this.serverDispatcher.close();
 132         this.registry.close();
 133         this.worker.shutdownGracefully().awaitUninterruptibly();
 134         this.boss.shutdownGracefully().awaitUninterruptibly();
 135     }
 136
 137     @Test
 138     public void testCreateClient() throws InterruptedException, ExecutionException {
 139         final InetSocketAddress serverAddress = new InetSocketAddress("127.0.10.0", 1790);
 140         final Channel serverChannel = createServer(serverAddress);
 141         Thread.sleep(1000);
 142         final Future<BGPSessionImpl> futureClient = this.clientDispatcher.createClient(serverAddress, this.registry, 2, Optional.absent());
 143         waitFutureSuccess(futureClient);
 144         final BGPSessionImpl session = futureClient.get();
 145         Assert.assertEquals(BGPSessionImpl.State.UP, this.clientListener.getState());
 146         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 147         Assert.assertEquals(AS_NUMBER, session.getAsNumber());
 148         Assert.assertEquals(Sets.newHashSet(IPV_4_TT), session.getAdvertisedTableTypes());
 149         Assert.assertTrue(serverChannel.isWritable());
 150         session.close();
 151
 152         checkIdleState(this.clientListener);
 153         checkIdleState(this.serverListener);
 154     }
 155
 156     @Test
 157     public void testCreateReconnectingClient() throws Exception {
 158         final InetSocketAddress serverAddress = new InetSocketAddress("127.0.20.0", 1792);
 159         final Future<Void> future = this.clientDispatcher.createReconnectingClient(serverAddress, this.registry, RETRY_TIMER, Optional.absent());
 160         waitFutureSuccess(future);
 161         final Channel serverChannel = createServer(serverAddress);
 162         Assert.assertEquals(BGPSessionImpl.State.UP, this.serverListener.getState());
 163         Assert.assertTrue(serverChannel.isWritable());
 164         future.cancel(true);
 165         this.serverListener.releaseConnection();
 166         checkIdleState(this.serverListener);
 167     }
 168
 169     private BGPSessionPreferences createPreferences(final InetSocketAddress socketAddress) {
 170         final List<BgpParameters> tlvs = Lists.newArrayList();
 171         final List<OptionalCapabilities> capas = Lists.newArrayList();
 172         capas.add(new OptionalCapabilitiesBuilder().setCParameters(new CParametersBuilder().addAugmentation(
 173             CParameters1.class, new CParameters1Builder().setMultiprotocolCapability(new MultiprotocolCapabilityBuilder()
 174                 .setAfi(IPV_4_TT.getAfi()).setSafi(IPV_4_TT.getSafi()).build()).build())
 175             .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(new AsNumber(30L)).build())
 176             .build()).build());
 177         capas.add(new OptionalCapabilitiesBuilder().setCParameters(BgpExtendedMessageUtil.EXTENDED_MESSAGE_CAPABILITY).build());
 178         tlvs.add(new BgpParametersBuilder().setOptionalCapabilities(capas).build());
 179         final BgpId bgpId = new BgpId(new Ipv4Address(socketAddress.getAddress().getHostAddress()));
 180         return new BGPSessionPreferences(AS_NUMBER, (short) 4, bgpId, AS_NUMBER, tlvs, Optional.absent());
 181     }
 182 }