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.impl.spi.ReusableBGPPeer;
  25 import org.opendaylight.protocol.bgp.rib.spi.BGPSessionListener;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Open;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.OpenBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.c.parameters.As4BytesCapabilityBuilder;
  36
  37 public class StrictBGPPeerRegistryTest {
  38
  39     private static final AsNumber LOCAL_AS = new AsNumber(1234L);
  40     private static final AsNumber REMOTE_AS = new AsNumber(1235L);
  41     private static final Ipv4Address FROM = new Ipv4Address("0.0.0.1");
  42     private static final IpAddress REMOTE_IP = new IpAddress(FROM);
  43     private static final Ipv4Address TO = new Ipv4Address("255.255.255.255");
  44
  45     private final ReusableBGPPeer peer1 = getMockSession();
  46     private final Open classicOpen = createOpen(TO, LOCAL_AS);
  47     private StrictBGPPeerRegistry peerRegistry;
  48     private BGPSessionPreferences mockPreferences;
  49
  50     private Open createOpen(final Ipv4Address bgpId, final AsNumber as) {
  51         final List<BgpParameters> params = Lists.newArrayList(new BgpParametersBuilder()
  52             .setOptionalCapabilities(Lists.newArrayList(new OptionalCapabilitiesBuilder()
  53                 .setCParameters(new CParametersBuilder()
  54                     .setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(as).build()).build()).build())).build());
  55         return new OpenBuilder().setBgpIdentifier(bgpId).setBgpParameters(params).build();
  56     }
  57
  58     @Before
  59     public void setUp() throws Exception {
  60         this.peerRegistry = new StrictBGPPeerRegistry();
  61         this.mockPreferences =  new BGPSessionPreferences(LOCAL_AS, 1, new Ipv4Address("0.0.0.1"), LOCAL_AS, Collections.<BgpParameters> emptyList());
  62     }
  63
  64     private static ReusableBGPPeer getMockSession() {
  65         final ReusableBGPPeer mock = Mockito.mock(ReusableBGPPeer.class);
  66         Mockito.doNothing().when(mock).releaseConnection();
  67         return mock;
  68     }
  69
  70     @Test
  71     public void testIpAddressConstruction() throws Exception {
  72         final InetSocketAddress adr = new InetSocketAddress("127.0.0.1", 179);
  73         final IpAddress ipAdr = StrictBGPPeerRegistry.getIpAddress(adr);
  74         assertEquals("127.0.0.1", ipAdr.getIpv4Address().getValue());
  75     }
  76
  77     @Test
  78     public void testDuplicatePeerConnection() throws Exception {
  79         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
  80         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  81         try {
  82             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  83         } catch (final BGPDocumentedException e) {
  84             assertEquals(BGPError.CEASE, e.getError());
  85             return;
  86         }
  87         fail("Same peer cannot be connected twice");
  88     }
  89
  90     @Test
  91     public void testPeerNotConfigured() throws Exception {
  92         try {
  93             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
  94         } catch (final IllegalStateException e) {
  95             return;
  96         }
  97         fail("Unknown peer cannot be connected");
  98     }
  99
 100     @Test
 101     public void testPeerConnectionSuccessfull() throws Exception {
 102         final Ipv4Address to2 = new Ipv4Address("255.255.255.254");
 103         final IpAddress remoteIp2 = new IpAddress(to2);
 104
 105         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 106         final ReusableBGPPeer session2 = getMockSession();
 107         this.peerRegistry.addPeer(remoteIp2, session2, this.mockPreferences);
 108
 109         final BGPSessionListener returnedSession1 = this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 110         assertSame(this.peer1, returnedSession1);
 111         final BGPSessionListener returnedSession2 = this.peerRegistry.getPeer(remoteIp2, FROM, to2, this.classicOpen);
 112         assertSame(session2, returnedSession2);
 113
 114         Mockito.verifyZeroInteractions(this.peer1);
 115         Mockito.verifyZeroInteractions(session2);
 116     }
 117
 118     @Test
 119     public void testDropSecondPeer() throws Exception {
 120         final Ipv4Address higher = new Ipv4Address("192.168.200.200");
 121         final Ipv4Address lower = new Ipv4Address("10.10.10.10");
 122         final IpAddress remoteIp = new IpAddress(lower);
 123
 124         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 125
 126         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 127         try {
 128             this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 129         } catch (final BGPDocumentedException e) {
 130             assertEquals(BGPError.CEASE, e.getError());
 131             return;
 132         }
 133         fail("Same peer cannot be connected twice");
 134     }
 135
 136     @Test
 137     public void testDropFirstPeer() throws Exception {
 138         final Ipv4Address higher = new Ipv4Address("123.123.123.123");
 139         final Ipv4Address lower = new Ipv4Address("123.123.123.122");
 140         final IpAddress remoteIp = new IpAddress(lower);
 141
 142         this.peerRegistry.addPeer(remoteIp, this.peer1, this.mockPreferences);
 143
 144         this.peerRegistry.getPeer(remoteIp, lower, higher, createOpen(higher, LOCAL_AS));
 145         this.peerRegistry.getPeer(remoteIp, higher, lower, createOpen(lower, LOCAL_AS));
 146         Mockito.verify(this.peer1).releaseConnection();
 147     }
 148
 149     @Test
 150     public void testDuplicatePeersWDifferentIds() throws Exception {
 151         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 152
 153         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 154         try {
 155             this.peerRegistry.getPeer(REMOTE_IP, TO, TO, this.classicOpen);
 156         } catch (final BGPDocumentedException e) {
 157             assertEquals(BGPError.CEASE, e.getError());
 158             return;
 159         }
 160         fail("Same peer cannot be connected twice");
 161     }
 162
 163     @Test
 164     public void testDuplicatePeersHigherAs() throws Exception {
 165         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 166
 167         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 168         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, REMOTE_AS));
 169         Mockito.verify(this.peer1).releaseConnection();
 170     }
 171
 172     @Test
 173     public void testDuplicatePeersLowerAs() throws Exception {
 174         final AsNumber as2 = new AsNumber(3L);
 175
 176         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 177
 178         this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, this.classicOpen);
 179         try {
 180             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 181         } catch (final BGPDocumentedException e) {
 182             assertEquals(BGPError.CEASE, e.getError());
 183             return;
 184         }
 185         fail("Same peer cannot be connected twice");
 186     }
 187
 188     @Test
 189     public void testAsMismatch() throws Exception {
 190         final AsNumber as2 = new AsNumber(3L);
 191
 192         this.peerRegistry.addPeer(REMOTE_IP, this.peer1, this.mockPreferences);
 193         try {
 194             this.peerRegistry.getPeer(REMOTE_IP, FROM, TO, createOpen(TO, as2));
 195         } catch (final BGPDocumentedException e) {
 196             assertEquals(BGPError.BAD_PEER_AS, e.getError());
 197             return;
 198         }
 199         fail("Peer AS number mismatch");
 200     }
 201 }