bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/StrictBGPPeerRegistryTest.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 static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertSame;
  13 import static org.junit.Assert.fail;
  14
  15 import com.google.common.base.Optional;
  16 import com.google.common.collect.Lists;
  17 import java.net.InetSocketAddress;
  18 import java.util.Collections;
  19 import java.util.List;
  20 import org.junit.Before;
  21 import org.junit.Test;
  22 import org.mockito.Mockito;
  23 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  24 import org.opendaylight.protocol.bgp.parser.BGPError;
  25 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  26 import org.opendaylight.protocol.bgp.rib.spi.BGPSessionListener;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Open;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.OpenBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  38
  39 public class StrictBGPPeerRegistryTest {
  40
  41     private static final AsNumber LOCAL_AS = new AsNumber(1234L);
  42     private static final AsNumber REMOTE_AS = new AsNumber(1235L);
  43     private static final Ipv4Address FROM = new Ipv4Address("0.0.0.1");
  44     private static final IpAddress REMOTE_IP = new IpAddress(FROM);
  45     private static final Ipv4Address TO = new Ipv4Address("255.255.255.255");
  46
  47     private final BGPSessionListener peer1 = getMockSession();
  48     private final Open classicOpen = createOpen(TO, LOCAL_AS);
  49     private StrictBGPPeerRegistry peerRegistry;
  50     private BGPSessionPreferences mockPreferences;
  51
  52     private Open createOpen(final Ipv4Address bgpId, final AsNumber as) {
  53         final List<BgpParameters> params = Lists.newArrayList(new BgpParametersBuilder()
  54         .setOptionalCapabilities(Lists.newArrayList(new OptionalCapabilitiesBuilder()
  55         .setCParameters(new CParametersBuilder()
  56         .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(as).build()).build()).build())).build());
  57         return new OpenBuilder().setBgpIdentifier(bgpId).setBgpParameters(params).build();
  58     }
  59
  60     @Before
  61     public void setUp() throws Exception {
  62         this.peerRegistry = new StrictBGPPeerRegistry();
  63         this.mockPreferences =  new BGPSessionPreferences(LOCAL_AS, 1, new BgpId("0.0.0.1"), LOCAL_AS, Collections.<BgpParameters> emptyList(),
  64                 Optional.<byte[]>absent());
  65     }
  66
  67     private static BGPSessionListener getMockSession() {
  68         final BGPSessionListener mock = Mockito.mock(BGPSessionListener.class);
  69         Mockito.doNothing().when(mock).releaseConnection();
  70         return mock;
  71     }
  72
  73     @Test
  74     public void testIpAddressConstruction() throws Exception {
  75         final InetSocketAddress adr = new InetSocketAddress("127.0.0.1", 179);
  76         final IpAddress ipAdr = StrictBGPPeerRegistry.getIpAddress(adr);
  77         assertEquals("127.0.0.1", ipAdr.getIpv4Address().getValue());
  78     }
  79
  80     @Test
  81     public void testDuplicatePeerConnection() throws Exception {
  82         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
  83         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  84         try {
  85             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  86         } catch (final BGPDocumentedException e) {
  87             assertEquals(BGPError.CEASE, e.getError());
  88             return;
  89         }
  90         fail("Same peer cannot be connected twice");
  91     }
  92
  93     @Test
  94     public void testPeerNotConfigured() throws Exception {
  95         try {
  96             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  97         } catch (final IllegalStateException e) {
  98             return;
  99         }
 100         fail("Unknown peer cannot be connected");
 101     }
 102
 103     @Test
 104     public void testPeerConnectionSuccessfull() throws Exception {
 105         final Ipv4Address to2 = new Ipv4Address("255.255.255.254");
 106         final IpAddress remoteIp2 = new IpAddress(to2);
 107
 108         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 109         final BGPSessionListener session2 = getMockSession();
 110         this.peerRegistry.addPeer(remoteIp2, session2, this.mockPreferences);
 111
 112         final BGPSessionListener returnedSession1 = this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 113         assertSame(this.peer1, returnedSession1);
 114         final BGPSessionListener returnedSession2 = this.peerRegistry.getPeer(remoteIp2, FROM, to2, this.classicOpen);
 115         assertSame(session2, returnedSession2);
 116
 117         Mockito.verifyZeroInteractions(this.peer1);
 118         Mockito.verifyZeroInteractions(session2);
 119     }
 120
 121     @Test
 122     public void testDropSecondPeer() throws Exception {
 123         final Ipv4Address higher = new Ipv4Address("192.168.200.200");
 124         final Ipv4Address lower = new Ipv4Address("10.10.10.10");
 125         final IpAddress remoteIp = new IpAddress(lower);
 126
 127         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 128
 129         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 130         try {
 131             this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 132         } catch (final BGPDocumentedException e) {
 133             assertEquals(BGPError.CEASE, e.getError());
 134             return;
 135         }
 136         fail("Same peer cannot be connected twice");
 137     }
 138
 139     @Test
 140     public void testDropFirstPeer() throws Exception {
 141         final Ipv4Address higher = new Ipv4Address("123.123.123.123");
 142         final Ipv4Address lower = new Ipv4Address("123.123.123.122");
 143         final IpAddress remoteIp = new IpAddress(lower);
 144
 145         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 146
 147         this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 148         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 149         Mockito.verify(this.peer1).releaseConnection();
 150     }
 151
 152     @Test
 153     public void testDuplicatePeersWDifferentIds() throws Exception {
 154         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 155
 156         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 157         try {
 158             this.peerRegistry.getPeer(REMOTE_IP, TO, TO, this.classicOpen);
 159         } catch (final BGPDocumentedException e) {
 160             assertEquals(BGPError.CEASE, e.getError());
 161             return;
 162         }
 163         fail("Same peer cannot be connected twice");
 164     }
 165
 166     @Test
 167     public void testDuplicatePeersHigherAs() throws Exception {
 168         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 169
 170         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 171         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, REMOTE_AS));
 172         Mockito.verify(this.peer1).releaseConnection();
 173     }
 174
 175     @Test
 176     public void testDuplicatePeersLowerAs() throws Exception {
 177         final AsNumber as2 = new AsNumber(3L);
 178
 179         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 180
 181         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 182         try {
 183             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 184         } catch (final BGPDocumentedException e) {
 185             assertEquals(BGPError.CEASE, e.getError());
 186             return;
 187         }
 188         fail("Same peer cannot be connected twice");
 189     }
 190
 191     @Test
 192     public void testAsMismatch() throws Exception {
 193         final AsNumber as2 = new AsNumber(3L);
 194
 195         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 196         try {
 197             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 198         } catch (final BGPDocumentedException e) {
 199             assertEquals(BGPError.BAD_PEER_AS, e.getError());
 200             return;
 201         }
 202         fail("Peer AS number mismatch");
 203     }
 204 }