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 import com.google.common.collect.Lists;
  15 import java.net.InetSocketAddress;
  16 import java.util.Collections;
  17 import java.util.List;
  18 import org.junit.Before;
  19 import org.junit.Test;
  20 import org.mockito.Mockito;
  21 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  22 import org.opendaylight.protocol.bgp.parser.BGPError;
  23 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  24 import org.opendaylight.protocol.bgp.rib.spi.BGPSessionListener;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Open;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.OpenBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  35
  36 public class StrictBGPPeerRegistryTest {
  37
  38     private static final AsNumber LOCAL_AS = new AsNumber(1234L);
  39     private static final AsNumber REMOTE_AS = new AsNumber(1235L);
  40     private static final Ipv4Address FROM = new Ipv4Address("0.0.0.1");
  41     private static final IpAddress REMOTE_IP = new IpAddress(FROM);
  42     private static final Ipv4Address TO = new Ipv4Address("255.255.255.255");
  43
  44     private final BGPSessionListener peer1 = getMockSession();
  45     private final Open classicOpen = createOpen(TO, LOCAL_AS);
  46     private StrictBGPPeerRegistry peerRegistry;
  47     private BGPSessionPreferences mockPreferences;
  48
  49     private Open createOpen(final Ipv4Address bgpId, final AsNumber as) {
  50         final List<BgpParameters> params = Lists.newArrayList(new BgpParametersBuilder()
  51             .setOptionalCapabilities(Lists.newArrayList(new OptionalCapabilitiesBuilder()
  52                 .setCParameters(new CParametersBuilder()
  53                     .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(as).build()).build()).build())).build());
  54         return new OpenBuilder().setBgpIdentifier(bgpId).setBgpParameters(params).build();
  55     }
  56
  57     @Before
  58     public void setUp() throws Exception {
  59         this.peerRegistry = new StrictBGPPeerRegistry();
  60         this.mockPreferences =  new BGPSessionPreferences(LOCAL_AS, 1, new Ipv4Address("0.0.0.1"), LOCAL_AS, Collections.<BgpParameters> emptyList());
  61     }
  62
  63     private static BGPSessionListener getMockSession() {
  64         final BGPSessionListener mock = Mockito.mock(BGPSessionListener.class);
  65         Mockito.doNothing().when(mock).releaseConnection();
  66         return mock;
  67     }
  68
  69     @Test
  70     public void testIpAddressConstruction() throws Exception {
  71         final InetSocketAddress adr = new InetSocketAddress("127.0.0.1", 179);
  72         final IpAddress ipAdr = StrictBGPPeerRegistry.getIpAddress(adr);
  73         assertEquals("127.0.0.1", ipAdr.getIpv4Address().getValue());
  74     }
  75
  76     @Test
  77     public void testDuplicatePeerConnection() throws Exception {
  78         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
  79         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  80         try {
  81             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  82         } catch (final BGPDocumentedException e) {
  83             assertEquals(BGPError.CEASE, e.getError());
  84             return;
  85         }
  86         fail("Same peer cannot be connected twice");
  87     }
  88
  89     @Test
  90     public void testPeerNotConfigured() throws Exception {
  91         try {
  92             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  93         } catch (final IllegalStateException e) {
  94             return;
  95         }
  96         fail("Unknown peer cannot be connected");
  97     }
  98
  99     @Test
 100     public void testPeerConnectionSuccessfull() throws Exception {
 101         final Ipv4Address to2 = new Ipv4Address("255.255.255.254");
 102         final IpAddress remoteIp2 = new IpAddress(to2);
 103
 104         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 105         final BGPSessionListener session2 = getMockSession();
 106         this.peerRegistry.addPeer(remoteIp2, session2, this.mockPreferences);
 107
 108         final BGPSessionListener returnedSession1 = this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 109         assertSame(this.peer1, returnedSession1);
 110         final BGPSessionListener returnedSession2 = this.peerRegistry.getPeer(remoteIp2, FROM, to2, this.classicOpen);
 111         assertSame(session2, returnedSession2);
 112
 113         Mockito.verifyZeroInteractions(this.peer1);
 114         Mockito.verifyZeroInteractions(session2);
 115     }
 116
 117     @Test
 118     public void testDropSecondPeer() throws Exception {
 119         final Ipv4Address higher = new Ipv4Address("192.168.200.200");
 120         final Ipv4Address lower = new Ipv4Address("10.10.10.10");
 121         final IpAddress remoteIp = new IpAddress(lower);
 122
 123         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 124
 125         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 126         try {
 127             this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 128         } catch (final BGPDocumentedException e) {
 129             assertEquals(BGPError.CEASE, e.getError());
 130             return;
 131         }
 132         fail("Same peer cannot be connected twice");
 133     }
 134
 135     @Test
 136     public void testDropFirstPeer() throws Exception {
 137         final Ipv4Address higher = new Ipv4Address("123.123.123.123");
 138         final Ipv4Address lower = new Ipv4Address("123.123.123.122");
 139         final IpAddress remoteIp = new IpAddress(lower);
 140
 141         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 142
 143         this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 144         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 145         Mockito.verify(this.peer1).releaseConnection();
 146     }
 147
 148     @Test
 149     public void testDuplicatePeersWDifferentIds() throws Exception {
 150         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 151
 152         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 153         try {
 154             this.peerRegistry.getPeer(REMOTE_IP, TO, TO, this.classicOpen);
 155         } catch (final BGPDocumentedException e) {
 156             assertEquals(BGPError.CEASE, e.getError());
 157             return;
 158         }
 159         fail("Same peer cannot be connected twice");
 160     }
 161
 162     @Test
 163     public void testDuplicatePeersHigherAs() throws Exception {
 164         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 165
 166         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 167         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, REMOTE_AS));
 168         Mockito.verify(this.peer1).releaseConnection();
 169     }
 170
 171     @Test
 172     public void testDuplicatePeersLowerAs() throws Exception {
 173         final AsNumber as2 = new AsNumber(3L);
 174
 175         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 176
 177         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 178         try {
 179             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 180         } catch (final BGPDocumentedException e) {
 181             assertEquals(BGPError.CEASE, e.getError());
 182             return;
 183         }
 184         fail("Same peer cannot be connected twice");
 185     }
 186
 187     @Test
 188     public void testAsMismatch() throws Exception {
 189         final AsNumber as2 = new AsNumber(3L);
 190
 191         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 192         try {
 193             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 194         } catch (final BGPDocumentedException e) {
 195             assertEquals(BGPError.BAD_PEER_AS, e.getError());
 196             return;
 197         }
 198         fail("Peer AS number mismatch");
 199     }
 200 }