Andreas Papazois | 6e1fca3 | 2016-02-09 11:27:10 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.sdxl3; |
| 17 | |
| 18 | import com.google.common.collect.Sets; |
| 19 | import org.junit.Before; |
| 20 | import org.junit.Test; |
| 21 | import org.onlab.packet.ARP; |
| 22 | import org.onlab.packet.Ethernet; |
| 23 | import org.onlab.packet.ICMP6; |
| 24 | import org.onlab.packet.IPacket; |
| 25 | import org.onlab.packet.IPv6; |
| 26 | import org.onlab.packet.Ip4Address; |
| 27 | import org.onlab.packet.Ip4Prefix; |
| 28 | import org.onlab.packet.Ip6Address; |
| 29 | import org.onlab.packet.Ip6Prefix; |
| 30 | import org.onlab.packet.IpAddress; |
| 31 | import org.onlab.packet.IpPrefix; |
| 32 | import org.onlab.packet.MacAddress; |
| 33 | import org.onlab.packet.VlanId; |
| 34 | import org.onlab.packet.ndp.NeighborAdvertisement; |
| 35 | import org.onlab.packet.ndp.NeighborDiscoveryOptions; |
| 36 | import org.onlab.packet.ndp.NeighborSolicitation; |
| 37 | import org.onosproject.incubator.net.intf.Interface; |
| 38 | import org.onosproject.incubator.net.intf.InterfaceService; |
| 39 | import org.onosproject.net.ConnectPoint; |
| 40 | import org.onosproject.net.DefaultHost; |
| 41 | import org.onosproject.net.Device; |
| 42 | import org.onosproject.net.DeviceId; |
| 43 | import org.onosproject.net.Host; |
| 44 | import org.onosproject.net.HostId; |
| 45 | import org.onosproject.net.HostLocation; |
| 46 | import org.onosproject.net.Link; |
| 47 | import org.onosproject.net.Port; |
| 48 | import org.onosproject.net.PortNumber; |
| 49 | import org.onosproject.net.device.DeviceListener; |
| 50 | import org.onosproject.net.device.DeviceService; |
| 51 | import org.onosproject.net.edge.EdgePortService; |
| 52 | import org.onosproject.net.flow.instructions.Instruction; |
| 53 | import org.onosproject.net.flow.instructions.Instructions.OutputInstruction; |
| 54 | import org.onosproject.net.host.HostService; |
| 55 | import org.onosproject.net.host.InterfaceIpAddress; |
| 56 | import org.onosproject.net.link.LinkListener; |
| 57 | import org.onosproject.net.link.LinkService; |
| 58 | import org.onosproject.net.packet.DefaultInboundPacket; |
| 59 | import org.onosproject.net.packet.InboundPacket; |
| 60 | import org.onosproject.net.packet.OutboundPacket; |
| 61 | import org.onosproject.net.packet.PacketServiceAdapter; |
| 62 | import org.onosproject.net.provider.ProviderId; |
| 63 | import org.onosproject.routing.config.BgpConfig; |
| 64 | |
| 65 | import java.nio.ByteBuffer; |
| 66 | import java.util.ArrayList; |
| 67 | import java.util.Arrays; |
| 68 | import java.util.Collections; |
| 69 | import java.util.HashSet; |
| 70 | import java.util.List; |
| 71 | import java.util.Optional; |
| 72 | import java.util.Set; |
| 73 | |
| 74 | import static org.easymock.EasyMock.anyObject; |
| 75 | import static org.easymock.EasyMock.createMock; |
| 76 | import static org.easymock.EasyMock.expect; |
| 77 | import static org.easymock.EasyMock.replay; |
| 78 | import static org.easymock.EasyMock.reset; |
| 79 | import static org.hamcrest.Matchers.anyOf; |
| 80 | import static org.hamcrest.Matchers.is; |
| 81 | import static org.junit.Assert.assertArrayEquals; |
| 82 | import static org.junit.Assert.assertEquals; |
| 83 | import static org.junit.Assert.assertNotNull; |
| 84 | import static org.junit.Assert.assertThat; |
| 85 | import static org.junit.Assert.assertTrue; |
| 86 | |
| 87 | /** |
| 88 | * Tests for the {@link SdxL3ArpHandler} class. It is based on tests for basic |
| 89 | * proxy ARP handling. Additional test cases for traffic between BGP peers are |
| 90 | * also included. |
| 91 | */ |
| 92 | public class SdxL3ArpHandlerTest { |
| 93 | |
| 94 | private static final int NUM_DEVICES = 10; |
| 95 | private static final int NUM_PORTS_PER_DEVICE = 3; |
| 96 | private static final int LAST_CONF_DEVICE_INTF_VLAN_IP = 3; |
| 97 | private static final int LAST_CONF_DEVICE_INTF_VLAN = 6; |
| 98 | |
| 99 | private static final Ip4Address IP1 = Ip4Address.valueOf("192.168.1.1"); |
| 100 | private static final Ip4Address IP2 = Ip4Address.valueOf("192.168.1.2"); |
| 101 | private static final Ip6Address IP3 = Ip6Address.valueOf("1000:ffff::1"); |
| 102 | private static final Ip6Address IP4 = Ip6Address.valueOf("1000:ffff::2"); |
| 103 | |
| 104 | private static final ProviderId PID = new ProviderId("of", "foo"); |
| 105 | |
| 106 | private static final VlanId VLAN1 = VlanId.vlanId((short) 1); |
| 107 | private static final VlanId VLAN2 = VlanId.vlanId((short) 2); |
| 108 | private static final VlanId VLAN10 = VlanId.vlanId((short) 10); |
| 109 | |
| 110 | private static final MacAddress MAC1 = MacAddress.valueOf("00:00:00:00:00:01"); |
| 111 | private static final MacAddress MAC2 = MacAddress.valueOf("00:00:00:00:00:02"); |
| 112 | private static final MacAddress MAC3 = MacAddress.valueOf("00:00:00:00:00:03"); |
| 113 | private static final MacAddress MAC4 = MacAddress.valueOf("00:00:00:00:00:04"); |
| 114 | private static final MacAddress MAC10 = MacAddress.valueOf("00:00:00:00:00:0A"); |
| 115 | |
| 116 | private static final MacAddress SOLICITED_MAC3 = MacAddress.valueOf("33:33:FF:00:00:01"); |
| 117 | |
| 118 | private static final HostId HID1 = HostId.hostId(MAC1, VLAN1); |
| 119 | private static final HostId HID2 = HostId.hostId(MAC2, VLAN1); |
| 120 | private static final HostId HID3 = HostId.hostId(MAC3, VLAN1); |
| 121 | private static final HostId HID4 = HostId.hostId(MAC4, VLAN1); |
| 122 | private static final HostId HID10 = HostId.hostId(MAC10, VLAN10); |
| 123 | |
| 124 | private static final DeviceId DID1 = getDeviceId(1); |
| 125 | private static final DeviceId DID2 = getDeviceId(2); |
| 126 | |
| 127 | private static final PortNumber P1 = PortNumber.portNumber(1); |
| 128 | |
| 129 | private static final ConnectPoint CP1 = new ConnectPoint(DID1, P1); |
| 130 | private static final ConnectPoint CP2 = new ConnectPoint(DID2, P1); |
| 131 | |
| 132 | private static final HostLocation LOC1 = new HostLocation(DID1, P1, 123L); |
| 133 | |
| 134 | private static final String PEER1_IP = "10.0.1.201"; |
| 135 | private static final String PEER2_IP = "10.0.1.101"; |
| 136 | private static final String PEER1_IP6 = "1000::1"; |
| 137 | private static final String PEER2_IP6 = "1000::100"; |
| 138 | |
| 139 | private final byte[] zeroMacAddress = MacAddress.ZERO.toBytes(); |
| 140 | |
| 141 | // The first three devices in the topology have interfaces configured |
| 142 | // with VLANs and IPs |
| 143 | private final List<ConnectPoint> configIpCPoints = new ArrayList<>(); |
| 144 | |
| 145 | // Other three devices in the topology (from 4 to 6) have interfaces |
| 146 | // configured only with VLANs |
| 147 | private final List<ConnectPoint> configVlanCPoints = new ArrayList<>(); |
| 148 | |
| 149 | // Remaining devices in the network (id > 6) don't have any interface |
| 150 | // configured. |
| 151 | private final List<ConnectPoint> noConfigCPoints = new ArrayList<>(); |
| 152 | |
| 153 | private SdxL3ArpHandler proxyArp; |
| 154 | |
| 155 | private BgpConfig bgpConfig; |
| 156 | private TestPacketService packetService; |
| 157 | private DeviceService deviceService; |
| 158 | private EdgePortService edgePortService; |
| 159 | private LinkService linkService; |
| 160 | private HostService hostService; |
| 161 | private InterfaceService interfaceService; |
| 162 | |
| 163 | @Before |
| 164 | public void setUp() throws Exception { |
| 165 | |
| 166 | bgpConfig = createMock(BgpConfig.class); |
| 167 | packetService = new TestPacketService(); |
| 168 | hostService = createMock(HostService.class); |
| 169 | edgePortService = createMock(EdgePortService.class); |
| 170 | interfaceService = createMock(InterfaceService.class); |
| 171 | |
| 172 | // Create the topology |
| 173 | createTopology(); |
| 174 | |
| 175 | setupNoConfigCPoints(); |
| 176 | setupconfigIpCPoints(); |
| 177 | setupconfigVlanCPoints(); |
| 178 | |
| 179 | proxyArp = new SdxL3ArpHandler(bgpConfig, |
| 180 | edgePortService, |
| 181 | hostService, |
| 182 | packetService, |
| 183 | interfaceService); |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Creates a fake topology to feed into the ARP module. |
| 188 | * <p> |
| 189 | * The default topology is a unidirectional ring topology. Each switch has |
| 190 | * 3 ports. Ports 2 and 3 have the links to neighbor switches, and port 1 |
| 191 | * is free (edge port). |
| 192 | * The first half of the switches have IP addresses configured on their |
| 193 | * free ports (port 1). The second half of the switches have no IP |
| 194 | * addresses configured. |
| 195 | */ |
| 196 | private void createTopology() { |
| 197 | deviceService = createMock(DeviceService.class); |
| 198 | linkService = createMock(LinkService.class); |
| 199 | |
| 200 | deviceService.addListener(anyObject(DeviceListener.class)); |
| 201 | linkService.addListener(anyObject(LinkListener.class)); |
| 202 | |
| 203 | createDevices(NUM_DEVICES, NUM_PORTS_PER_DEVICE); |
| 204 | createLinks(NUM_DEVICES); |
| 205 | addIntfConfig(); |
| 206 | addEmptyBgpConfig(); |
| 207 | popluateEdgePortService(); |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Creates the devices for the fake topology. |
| 212 | */ |
| 213 | private void createDevices(int numDevices, int numPorts) { |
| 214 | List<Device> devices = new ArrayList<>(); |
| 215 | |
| 216 | for (int i = 1; i <= numDevices; i++) { |
| 217 | DeviceId devId = getDeviceId(i); |
| 218 | Device device = createMock(Device.class); |
| 219 | expect(device.id()).andReturn(devId).anyTimes(); |
| 220 | replay(device); |
| 221 | |
| 222 | devices.add(device); |
| 223 | |
| 224 | List<Port> ports = new ArrayList<>(); |
| 225 | for (int j = 1; j <= numPorts; j++) { |
| 226 | Port port = createMock(Port.class); |
| 227 | expect(port.number()).andReturn(PortNumber.portNumber(j)).anyTimes(); |
| 228 | replay(port); |
| 229 | ports.add(port); |
| 230 | } |
| 231 | |
| 232 | expect(deviceService.getPorts(devId)).andReturn(ports).anyTimes(); |
| 233 | expect(deviceService.getDevice(devId)).andReturn(device).anyTimes(); |
| 234 | } |
| 235 | |
| 236 | expect(deviceService.getDevices()).andReturn(devices).anyTimes(); |
| 237 | replay(deviceService); |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Creates the links for the fake topology. |
| 242 | * NB: Only unidirectional links are created, as for this purpose all we |
| 243 | * need is to occupy the ports with some link. |
| 244 | */ |
| 245 | private void createLinks(int numDevices) { |
| 246 | List<Link> links = new ArrayList<>(); |
| 247 | |
| 248 | for (int i = 1; i <= numDevices; i++) { |
| 249 | ConnectPoint src = new ConnectPoint( |
| 250 | getDeviceId(i), |
| 251 | PortNumber.portNumber(2)); |
| 252 | ConnectPoint dst = new ConnectPoint( |
| 253 | getDeviceId((i + 1 > numDevices) ? 1 : i + 1), |
| 254 | PortNumber.portNumber(3)); |
| 255 | |
| 256 | Link link = createMock(Link.class); |
| 257 | expect(link.src()).andReturn(src).anyTimes(); |
| 258 | expect(link.dst()).andReturn(dst).anyTimes(); |
| 259 | replay(link); |
| 260 | |
| 261 | links.add(link); |
| 262 | } |
| 263 | |
| 264 | expect(linkService.getLinks()).andReturn(links).anyTimes(); |
| 265 | replay(linkService); |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | * On the first three devices two config interfaces are binded on port 1. |
| 270 | * The first one with VLAN1, the second one with VLAN equals to none. |
| 271 | * Both interfaces have an IP. |
| 272 | * On devices 4, 5 and 6 it's binded a config interface on port 1. |
| 273 | * The interface is configured with VLAN 1 and no IP. |
| 274 | */ |
| 275 | private void addIntfConfig() { |
| 276 | Set<Interface> interfaces = Sets.newHashSet(); |
| 277 | |
| 278 | Set<Interface> vlanOneSet = new HashSet<>(); |
| 279 | |
| 280 | for (int i = 1; i <= LAST_CONF_DEVICE_INTF_VLAN_IP; i++) { |
| 281 | ConnectPoint cp = new ConnectPoint(getDeviceId(i), P1); |
| 282 | |
| 283 | // Interface addresses for IPv4 |
| 284 | Ip4Prefix prefix1 = Ip4Prefix.valueOf("10.0." + (2 * i - 1) + ".0/24"); |
| 285 | Ip4Address addr1 = Ip4Address.valueOf("10.0." + (2 * i - 1) + ".1"); |
| 286 | Ip4Prefix prefix2 = Ip4Prefix.valueOf("10.0." + (2 * i) + ".0/24"); |
| 287 | Ip4Address addr2 = Ip4Address.valueOf("10.0." + (2 * i) + ".1"); |
| 288 | InterfaceIpAddress ia1 = new InterfaceIpAddress(addr1, prefix1); |
| 289 | InterfaceIpAddress ia2 = new InterfaceIpAddress(addr2, prefix2); |
| 290 | |
| 291 | // Interface addresses for IPv6 |
| 292 | Ip6Prefix prefix3 = Ip6Prefix.valueOf((2 * i - 1) + "000::0/64"); |
| 293 | Ip6Address addr3 = Ip6Address.valueOf((2 * i - 1) + "000::1"); |
| 294 | Ip6Prefix prefix4 = Ip6Prefix.valueOf((2 * i) + "000::0/64"); |
| 295 | Ip6Address addr4 = Ip6Address.valueOf((2 * i) + "000::2"); |
| 296 | InterfaceIpAddress ia3 = new InterfaceIpAddress(addr3, prefix3); |
| 297 | InterfaceIpAddress ia4 = new InterfaceIpAddress(addr4, prefix4); |
| 298 | |
| 299 | // Setting up interfaces |
| 300 | Interface intf1 = new Interface(cp, Sets.newHashSet(ia1, ia3), |
| 301 | MacAddress.valueOf(2 * i - 1), |
| 302 | VlanId.vlanId((short) 1)); |
| 303 | Interface intf2 = new Interface(cp, Sets.newHashSet(ia2, ia4), |
| 304 | MacAddress.valueOf(2 * i), |
| 305 | VlanId.NONE); |
| 306 | |
| 307 | interfaces.add(intf1); |
| 308 | interfaces.add(intf2); |
| 309 | |
| 310 | vlanOneSet.add(intf1); |
| 311 | |
| 312 | expect(interfaceService.getInterfacesByPort(cp)) |
| 313 | .andReturn(Sets.newHashSet(intf1, intf2)).anyTimes(); |
| 314 | } |
| 315 | for (int i = LAST_CONF_DEVICE_INTF_VLAN_IP + 1; i <= LAST_CONF_DEVICE_INTF_VLAN; i++) { |
| 316 | ConnectPoint cp = new ConnectPoint(getDeviceId(i), P1); |
| 317 | Interface intf1 = new Interface(cp, null, |
| 318 | MacAddress.NONE, |
| 319 | VlanId.vlanId((short) 1)); |
| 320 | |
| 321 | interfaces.add(intf1); |
| 322 | vlanOneSet.add(intf1); |
| 323 | |
| 324 | expect(interfaceService.getInterfacesByPort(cp)) |
| 325 | .andReturn(Sets.newHashSet(intf1)).anyTimes(); |
| 326 | } |
| 327 | expect(interfaceService.getInterfacesByVlan(VLAN1)) |
| 328 | .andReturn(vlanOneSet).anyTimes(); |
| 329 | expect(interfaceService.getInterfacesByVlan(VLAN10)) |
| 330 | .andReturn(Collections.emptySet()).anyTimes(); |
| 331 | expect(interfaceService.getInterfaces()).andReturn(interfaces).anyTimes(); |
| 332 | |
| 333 | for (int i = LAST_CONF_DEVICE_INTF_VLAN + 1; i <= NUM_DEVICES; i++) { |
| 334 | ConnectPoint cp = new ConnectPoint(getDeviceId(i), |
| 335 | P1); |
| 336 | expect(interfaceService.getInterfacesByPort(cp)) |
| 337 | .andReturn(Collections.emptySet()).anyTimes(); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * Adds an empty BGP configuration for the purposes of basic ARP handling. |
| 343 | */ |
| 344 | private void addEmptyBgpConfig() { |
| 345 | Set<BgpConfig.BgpSpeakerConfig> speakers = Sets.newHashSet(); |
| 346 | |
| 347 | expect(bgpConfig.bgpSpeakers()).andReturn(speakers).anyTimes(); |
| 348 | replay(bgpConfig); |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * Populates edge ports in the EdgePortService to return all port 1 |
| 353 | * as edge ports. |
| 354 | */ |
| 355 | private void popluateEdgePortService() { |
| 356 | Set<ConnectPoint> edgeConnectPoints = new HashSet<>(); |
| 357 | |
| 358 | for (int i = 1; i <= NUM_DEVICES; i++) { |
| 359 | for (int j = 1; j <= NUM_PORTS_PER_DEVICE; j++) { |
| 360 | ConnectPoint edgeConnectPoint = new ConnectPoint( |
| 361 | getDeviceId(i), |
| 362 | PortNumber.portNumber(1)); |
| 363 | ConnectPoint noEdgeConnectPointOne = new ConnectPoint( |
| 364 | getDeviceId(i), |
| 365 | PortNumber.portNumber(2)); |
| 366 | ConnectPoint noEdgeConnectPointTwo = new ConnectPoint( |
| 367 | getDeviceId(i), |
| 368 | PortNumber.portNumber(3)); |
| 369 | |
| 370 | edgeConnectPoints.add(edgeConnectPoint); |
| 371 | |
| 372 | expect(edgePortService.isEdgePoint(edgeConnectPoint)) |
| 373 | .andReturn(true).anyTimes(); |
| 374 | expect(edgePortService.isEdgePoint(noEdgeConnectPointOne)) |
| 375 | .andReturn(false).anyTimes(); |
| 376 | expect(edgePortService.isEdgePoint(noEdgeConnectPointTwo)) |
| 377 | .andReturn(false).anyTimes(); |
| 378 | } |
| 379 | } |
| 380 | expect(edgePortService.getEdgePoints()) |
| 381 | .andReturn(edgeConnectPoints).anyTimes(); |
| 382 | |
| 383 | replay(edgePortService); |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Creates a list of connect points used to verify floodling on ports |
| 388 | * with no interfaces configured (all ports without interface config). |
| 389 | */ |
| 390 | private void setupNoConfigCPoints() { |
| 391 | for (int i = NUM_DEVICES / 2 + 2; i <= NUM_DEVICES; i++) { |
| 392 | ConnectPoint connectPoint = new ConnectPoint( |
| 393 | getDeviceId(i), |
| 394 | PortNumber.portNumber(1)); |
| 395 | noConfigCPoints.add(connectPoint); |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * Creates a list of connect points used to verify floodling on ports |
| 401 | * with interfaces configured (both VLAN and IP). |
| 402 | */ |
| 403 | private void setupconfigIpCPoints() { |
| 404 | for (int i = 1; i <= 3; i++) { |
| 405 | ConnectPoint connectPoint = new ConnectPoint( |
| 406 | getDeviceId(i), |
| 407 | PortNumber.portNumber(1)); |
| 408 | configIpCPoints.add(connectPoint); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Creates a list of connect points used to verify floodling on ports |
| 414 | * with interfaces configured (both VLAN and IP). |
| 415 | */ |
| 416 | private void setupconfigVlanCPoints() { |
| 417 | for (int i = LAST_CONF_DEVICE_INTF_VLAN_IP + 1; i <= LAST_CONF_DEVICE_INTF_VLAN; i++) { |
| 418 | ConnectPoint connectPoint = new ConnectPoint( |
| 419 | getDeviceId(i), |
| 420 | PortNumber.portNumber(1)); |
| 421 | configVlanCPoints.add(connectPoint); |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 427 | * destination host is known. |
| 428 | * Two host using the same VLAN are registered on the host service on devices 5 and 6. |
| 429 | * Host on port 6 asks for the MAC of the device on port 5. |
| 430 | * Since the destination mac address is known, the request is not flooded to anywhere |
| 431 | * and ONOS directly builds an ARP reply, sended back to the requester on device 6. |
| 432 | * It's verified that a proper ARP reply is received on port 1 of device 6. |
| 433 | */ |
| 434 | @Test |
| 435 | public void testReplyKnown() { |
| 436 | Host requestor = new DefaultHost(PID, HID1, MAC1, VLAN1, getLocation(NUM_DEVICES), |
| 437 | Collections.singleton(IP1)); |
| 438 | |
| 439 | Host replyer = new DefaultHost(PID, HID2, MAC2, VLAN1, getLocation(NUM_DEVICES - 1), |
| 440 | Collections.singleton(IP2)); |
| 441 | |
| 442 | expect(hostService.getHostsByIp(IP2)) |
| 443 | .andReturn(Collections.singleton(replyer)); |
| 444 | expect(hostService.getHost(HID1)).andReturn(requestor); |
| 445 | |
| 446 | replay(hostService); |
| 447 | replay(interfaceService); |
| 448 | |
| 449 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, IP1, IP2); |
| 450 | |
| 451 | InboundPacket pkt = |
| 452 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 453 | arpRequest, |
| 454 | ByteBuffer.wrap(arpRequest.serialize())); |
| 455 | proxyArp.processPacketIn(pkt); |
| 456 | |
| 457 | assertEquals(1, packetService.packets.size()); |
| 458 | Ethernet arpReply = buildArp(ARP.OP_REPLY, VLAN1, MAC2, MAC1, IP2, IP1); |
| 459 | verifyPacketOut(arpReply, getLocation(NUM_DEVICES), packetService.packets.get(0)); |
| 460 | } |
| 461 | |
| 462 | /** |
| 463 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 464 | * destination host is known. |
| 465 | * Verifies the correct NDP reply is sent out the correct port. |
| 466 | */ |
| 467 | @Test |
| 468 | public void testReplyKnownIpv6() { |
| 469 | Host replyer = new DefaultHost(PID, HID3, MAC3, VLAN1, getLocation(4), |
| 470 | Collections.singleton(IP3)); |
| 471 | |
| 472 | Host requestor = new DefaultHost(PID, HID4, MAC4, VLAN1, getLocation(5), |
| 473 | Collections.singleton(IP4)); |
| 474 | |
| 475 | expect(hostService.getHostsByIp(IP3)) |
| 476 | .andReturn(Collections.singleton(replyer)); |
| 477 | expect(hostService.getHost(HID4)).andReturn(requestor); |
| 478 | |
| 479 | replay(hostService); |
| 480 | replay(interfaceService); |
| 481 | |
| 482 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 483 | MAC4, SOLICITED_MAC3, |
| 484 | IP4, IP3); |
| 485 | |
| 486 | InboundPacket pkt = |
| 487 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(5), P1), |
| 488 | ndpRequest, |
| 489 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 490 | proxyArp.processPacketIn(pkt); |
| 491 | |
| 492 | assertEquals(1, packetService.packets.size()); |
| 493 | Ethernet ndpReply = buildNdp(ICMP6.NEIGHBOR_ADVERTISEMENT, |
| 494 | MAC3, MAC4, IP3, IP4); |
| 495 | verifyPacketOut(ndpReply, getLocation(5), packetService.packets.get(0)); |
| 496 | } |
| 497 | |
| 498 | /** |
| 499 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 500 | * destination host is not known. |
| 501 | * Only a requestor is present (on device 6, port 1). The device has a VLAN configured |
| 502 | * which is not configured anywhere in the system. |
| 503 | * Since the destination is not known, and since the ARP request can't be sent out of |
| 504 | * interfaces configured, the ARP request is flooded out of ports 4 and 5. |
| 505 | * Verifies the ARP request is flooded out the correct edge ports. |
| 506 | */ |
| 507 | @Test |
| 508 | public void testReplyUnknown() { |
| 509 | Host requestor = new DefaultHost(PID, HID10, MAC10, VLAN10, getLocation(NUM_DEVICES), |
| 510 | Collections.singleton(IP1)); |
| 511 | |
| 512 | expect(hostService.getHostsByIp(IP2)) |
| 513 | .andReturn(Collections.emptySet()); |
| 514 | expect(interfaceService.getInterfacesByIp(IP1)) |
| 515 | .andReturn(Collections.emptySet()); |
| 516 | expect(hostService.getHost(HID10)).andReturn(requestor); |
| 517 | |
| 518 | replay(hostService); |
| 519 | replay(interfaceService); |
| 520 | |
| 521 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN10, MAC10, null, IP1, IP2); |
| 522 | |
| 523 | InboundPacket pkt = |
| 524 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 525 | arpRequest, |
| 526 | ByteBuffer.wrap(arpRequest.serialize())); |
| 527 | proxyArp.processPacketIn(pkt); |
| 528 | |
| 529 | verifyFlood(arpRequest, noConfigCPoints); |
| 530 | } |
| 531 | |
| 532 | /** |
| 533 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 534 | * destination host is not known. |
| 535 | * Verifies the NDP request is flooded out the correct edge ports. |
| 536 | */ |
| 537 | @Test |
| 538 | public void testReplyUnknownIpv6() { |
| 539 | Host requestor = new DefaultHost(PID, HID4, MAC4, VLAN1, getLocation(NUM_DEVICES), |
| 540 | Collections.singleton(IP4)); |
| 541 | |
| 542 | expect(hostService.getHostsByIp(IP3)) |
| 543 | .andReturn(Collections.emptySet()); |
| 544 | expect(interfaceService.getInterfacesByIp(IP4)) |
| 545 | .andReturn(Collections.emptySet()); |
| 546 | expect(hostService.getHost(HID4)).andReturn(requestor); |
| 547 | |
| 548 | replay(hostService); |
| 549 | replay(interfaceService); |
| 550 | |
| 551 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 552 | MAC4, SOLICITED_MAC3, |
| 553 | IP4, IP3); |
| 554 | |
| 555 | InboundPacket pkt = |
| 556 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 557 | ndpRequest, |
| 558 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 559 | proxyArp.processPacketIn(pkt); |
| 560 | |
| 561 | verifyFlood(ndpRequest, noConfigCPoints); |
| 562 | } |
| 563 | |
| 564 | /** |
| 565 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 566 | * destination host is known for that IP address, but is not on the same |
| 567 | * VLAN as the source host. |
| 568 | * An host is connected on device 6, port 1 where no interfaces are defined. It sends |
| 569 | * ARP requests from VLAN10, not configured anywhere in the network. Another host with |
| 570 | * the IP address requested lives on device 5, port 1 in the network. Anyway, since the |
| 571 | * host uses another VLAN it's not found and the ARP packet is flooded out of port |
| 572 | * 4 and 5. |
| 573 | * |
| 574 | * Verifies the ARP request is flooded out the correct edge ports. |
| 575 | */ |
| 576 | @Test |
| 577 | public void testReplyDifferentVlan() { |
| 578 | Host requestor = new DefaultHost(PID, HID10, MAC10, VLAN10, getLocation(NUM_DEVICES), |
| 579 | Collections.singleton(IP1)); |
| 580 | |
| 581 | Host replyer = new DefaultHost(PID, HID2, MAC2, VLAN2, getLocation(NUM_DEVICES - 1), |
| 582 | Collections.singleton(IP2)); |
| 583 | |
| 584 | expect(hostService.getHostsByIp(IP2)) |
| 585 | .andReturn(Collections.singleton(replyer)); |
| 586 | expect(interfaceService.getInterfacesByIp(IP1)) |
| 587 | .andReturn(Collections.emptySet()); |
| 588 | expect(hostService.getHost(HID10)).andReturn(requestor); |
| 589 | |
| 590 | replay(hostService); |
| 591 | replay(interfaceService); |
| 592 | |
| 593 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN10, MAC10, null, IP1, IP2); |
| 594 | |
| 595 | InboundPacket pkt = |
| 596 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 597 | arpRequest, |
| 598 | ByteBuffer.wrap(arpRequest.serialize())); |
| 599 | proxyArp.processPacketIn(pkt); |
| 600 | |
| 601 | verifyFlood(arpRequest, noConfigCPoints); |
| 602 | } |
| 603 | |
| 604 | /** |
| 605 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 606 | * a vlan packet comes in from a port without interfaces configured. The destination |
| 607 | * host is unknown for that IP address and there are some interfaces configured on |
| 608 | * the same vlan. |
| 609 | * It's expected to see the ARP request going out through ports with no interfaces |
| 610 | * configured, devices 4 and 5, port 1. |
| 611 | * |
| 612 | * Verifies the ARP request is flooded out the correct edge ports. |
| 613 | */ |
| 614 | @Test |
| 615 | public void testConfiguredVlan() { |
| 616 | Host requestor = new DefaultHost(PID, HID1, MAC1, VLAN1, getLocation(NUM_DEVICES), |
| 617 | Collections.singleton(IP1)); |
| 618 | |
| 619 | expect(hostService.getHostsByIp(IP2)) |
| 620 | .andReturn(Collections.emptySet()); |
| 621 | expect(interfaceService.getInterfacesByIp(IP1)) |
| 622 | .andReturn(Collections.emptySet()); |
| 623 | expect(hostService.getHost(HID1)).andReturn(requestor); |
| 624 | |
| 625 | replay(hostService); |
| 626 | replay(interfaceService); |
| 627 | |
| 628 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, IP1, IP2); |
| 629 | |
| 630 | InboundPacket pkt = |
| 631 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 632 | arpRequest, |
| 633 | ByteBuffer.wrap(arpRequest.serialize())); |
| 634 | proxyArp.processPacketIn(pkt); |
| 635 | |
| 636 | verifyFlood(arpRequest, noConfigCPoints); |
| 637 | } |
| 638 | |
| 639 | /** |
| 640 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 641 | * a vlan packet comes in from a port without interfaces configured. The destination |
| 642 | * host is not known for that IP address and there are some interfaces configured on |
| 643 | * the same vlan. |
| 644 | * It's expected to see the ARP request going out through ports with no interfaces |
| 645 | * configured, devices 4 and 5, port 1. |
| 646 | * |
| 647 | * Verifies the ARP request is flooded out the correct edge ports. |
| 648 | */ |
| 649 | @Test |
| 650 | public void testConfiguredVlanOnInterfaces() { |
| 651 | Host requestor = new DefaultHost(PID, HID1, MAC1, VLAN1, getLocation(6), |
| 652 | Collections.singleton(IP1)); |
| 653 | |
| 654 | expect(hostService.getHostsByIp(IP2)) |
| 655 | .andReturn(Collections.emptySet()); |
| 656 | expect(interfaceService.getInterfacesByIp(IP1)) |
| 657 | .andReturn(Collections.emptySet()); |
| 658 | expect(hostService.getHost(HID1)).andReturn(requestor); |
| 659 | |
| 660 | replay(hostService); |
| 661 | replay(interfaceService); |
| 662 | |
| 663 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, IP1, IP2); |
| 664 | |
| 665 | InboundPacket pkt = |
| 666 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(6), P1), |
| 667 | arpRequest, |
| 668 | ByteBuffer.wrap(arpRequest.serialize())); |
| 669 | proxyArp.processPacketIn(pkt); |
| 670 | |
| 671 | verifyFlood(arpRequest, configVlanCPoints); |
| 672 | } |
| 673 | |
| 674 | /** |
| 675 | * Tests {@link SdxL3ArpHandler#processPacketIn(InboundPacket)} in the case where the |
| 676 | * destination host is known for that IP address, but is not on the same |
| 677 | * VLAN as the source host. |
| 678 | * Verifies the NDP request is flooded out the correct edge ports. |
| 679 | */ |
| 680 | @Test |
| 681 | public void testReplyDifferentVlanIpv6() { |
| 682 | Host requestor = new DefaultHost(PID, HID4, MAC4, VLAN1, getLocation(NUM_DEVICES), |
| 683 | Collections.singleton(IP4)); |
| 684 | |
| 685 | Host replyer = new DefaultHost(PID, HID3, MAC3, VLAN2, getLocation(NUM_DEVICES - 1), |
| 686 | Collections.singleton(IP3)); |
| 687 | |
| 688 | expect(hostService.getHostsByIp(IP3)) |
| 689 | .andReturn(Collections.singleton(replyer)); |
| 690 | expect(interfaceService.getInterfacesByIp(IP4)) |
| 691 | .andReturn(Collections.emptySet()); |
| 692 | expect(hostService.getHost(HID4)).andReturn(requestor); |
| 693 | |
| 694 | replay(hostService); |
| 695 | replay(interfaceService); |
| 696 | |
| 697 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 698 | MAC4, SOLICITED_MAC3, |
| 699 | IP4, IP3); |
| 700 | |
| 701 | InboundPacket pkt = |
| 702 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(NUM_DEVICES), P1), |
| 703 | ndpRequest, |
| 704 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 705 | |
| 706 | proxyArp.processPacketIn(pkt); |
| 707 | |
| 708 | verifyFlood(ndpRequest, noConfigCPoints); |
| 709 | } |
| 710 | |
| 711 | /** |
| 712 | * Test ARP request from external network to an internal host. |
| 713 | */ |
| 714 | @Test |
| 715 | public void testReplyToRequestForUs() { |
| 716 | Ip4Address theirIp = Ip4Address.valueOf("10.0.1.254"); |
| 717 | Ip4Address ourFirstIp = Ip4Address.valueOf("10.0.1.1"); |
| 718 | Ip4Address ourSecondIp = Ip4Address.valueOf("10.0.2.1"); |
| 719 | MacAddress firstMac = MacAddress.valueOf(1L); |
| 720 | MacAddress secondMac = MacAddress.valueOf(2L); |
| 721 | |
| 722 | Host requestor = new DefaultHost(PID, HID1, MAC1, VLAN1, LOC1, |
| 723 | Collections.singleton(theirIp)); |
| 724 | |
| 725 | expect(hostService.getHost(HID1)).andReturn(requestor); |
| 726 | replay(hostService); |
| 727 | replay(interfaceService); |
| 728 | |
| 729 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, theirIp, ourFirstIp); |
| 730 | |
| 731 | InboundPacket pkt = |
| 732 | new DefaultInboundPacket(CP1, arpRequest, |
| 733 | ByteBuffer.wrap(arpRequest.serialize())); |
| 734 | |
| 735 | proxyArp.processPacketIn(pkt); |
| 736 | |
| 737 | assertEquals(1, packetService.packets.size()); |
| 738 | Ethernet arpReply = buildArp(ARP.OP_REPLY, VLAN1, firstMac, MAC1, ourFirstIp, theirIp); |
| 739 | verifyPacketOut(arpReply, CP1, packetService.packets.get(0)); |
| 740 | |
| 741 | // Test a request for the second address on that port |
| 742 | packetService.packets.clear(); |
| 743 | arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, theirIp, ourSecondIp); |
| 744 | |
| 745 | pkt = new DefaultInboundPacket(CP1, arpRequest, |
| 746 | ByteBuffer.wrap(arpRequest.serialize())); |
| 747 | proxyArp.processPacketIn(pkt); |
| 748 | |
| 749 | assertEquals(1, packetService.packets.size()); |
| 750 | arpReply = buildArp(ARP.OP_REPLY, VLAN1, secondMac, MAC1, ourSecondIp, theirIp); |
| 751 | verifyPacketOut(arpReply, CP1, packetService.packets.get(0)); |
| 752 | } |
| 753 | |
| 754 | /** |
| 755 | * Test NDP request from external network to an internal host. |
| 756 | */ |
| 757 | @Test |
| 758 | public void testReplyToRequestForUsIpv6() { |
| 759 | Ip6Address theirIp = Ip6Address.valueOf("1000::ffff"); |
| 760 | Ip6Address ourFirstIp = Ip6Address.valueOf("1000::1"); |
| 761 | Ip6Address ourSecondIp = Ip6Address.valueOf("2000::2"); |
| 762 | MacAddress firstMac = MacAddress.valueOf(1L); |
| 763 | MacAddress secondMac = MacAddress.valueOf(2L); |
| 764 | |
| 765 | Host requestor = new DefaultHost(PID, HID2, MAC2, VLAN1, LOC1, |
| 766 | Collections.singleton(theirIp)); |
| 767 | |
| 768 | expect(hostService.getHost(HID2)).andReturn(requestor); |
| 769 | expect(hostService.getHostsByIp(ourFirstIp)) |
| 770 | .andReturn(Collections.singleton(requestor)); |
| 771 | replay(hostService); |
| 772 | replay(interfaceService); |
| 773 | |
| 774 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 775 | MAC2, |
| 776 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 777 | theirIp, |
| 778 | ourFirstIp); |
| 779 | |
| 780 | InboundPacket pkt = |
| 781 | new DefaultInboundPacket(CP1, ndpRequest, |
| 782 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 783 | proxyArp.processPacketIn(pkt); |
| 784 | |
| 785 | assertEquals(1, packetService.packets.size()); |
| 786 | |
| 787 | Ethernet ndpReply = buildNdp(ICMP6.NEIGHBOR_ADVERTISEMENT, |
| 788 | firstMac, |
| 789 | MAC2, |
| 790 | ourFirstIp, |
| 791 | theirIp); |
| 792 | verifyPacketOut(ndpReply, CP1, packetService.packets.get(0)); |
| 793 | |
| 794 | // Test a request for the second address on that port |
| 795 | packetService.packets.clear(); |
| 796 | ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 797 | MAC2, |
| 798 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 799 | theirIp, |
| 800 | ourSecondIp); |
| 801 | |
| 802 | pkt = new DefaultInboundPacket(CP1, ndpRequest, |
| 803 | ByteBuffer.wrap(ndpReply.serialize())); |
| 804 | |
| 805 | proxyArp.processPacketIn(pkt); |
| 806 | |
| 807 | assertEquals(1, packetService.packets.size()); |
| 808 | |
| 809 | ndpReply = buildNdp(ICMP6.NEIGHBOR_ADVERTISEMENT, |
| 810 | secondMac, |
| 811 | MAC2, |
| 812 | ourSecondIp, |
| 813 | theirIp); |
| 814 | verifyPacketOut(ndpReply, CP1, packetService.packets.get(0)); |
| 815 | } |
| 816 | |
| 817 | /** |
| 818 | * Request for a valid external IPv4 address but coming in the wrong port. |
| 819 | */ |
| 820 | @Test |
| 821 | public void testReplyExternalPortBadRequest() { |
| 822 | replay(hostService); // no further host service expectations |
| 823 | replay(interfaceService); |
| 824 | |
| 825 | Ip4Address theirIp = Ip4Address.valueOf("10.0.1.254"); |
| 826 | |
| 827 | // Request for a valid external IP address but coming in the wrong port |
| 828 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, theirIp, |
| 829 | Ip4Address.valueOf("10.0.3.1")); |
| 830 | InboundPacket pkt = |
| 831 | new DefaultInboundPacket(CP1, arpRequest, |
| 832 | ByteBuffer.wrap(arpRequest.serialize())); |
| 833 | proxyArp.processPacketIn(pkt); |
| 834 | |
| 835 | assertEquals(0, packetService.packets.size()); |
| 836 | |
| 837 | // Request for a valid internal IP address but coming in an external port |
| 838 | packetService.packets.clear(); |
| 839 | arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, theirIp, IP1); |
| 840 | pkt = new DefaultInboundPacket(CP1, arpRequest, |
| 841 | ByteBuffer.wrap(arpRequest.serialize())); |
| 842 | proxyArp.processPacketIn(pkt); |
| 843 | assertEquals(0, packetService.packets.size()); |
| 844 | } |
| 845 | |
| 846 | /** |
| 847 | * Request for a valid external IPv6 address but coming in the wrong port. |
| 848 | */ |
| 849 | @Test |
| 850 | public void testReplyExternalPortBadRequestIpv6() { |
| 851 | replay(hostService); // no further host service expectations |
| 852 | replay(interfaceService); |
| 853 | |
| 854 | Ip6Address theirIp = Ip6Address.valueOf("1000::ffff"); |
| 855 | |
| 856 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 857 | MAC1, |
| 858 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 859 | theirIp, |
| 860 | Ip6Address.valueOf("3000::1")); |
| 861 | |
| 862 | InboundPacket pkt = |
| 863 | new DefaultInboundPacket(CP1, ndpRequest, |
| 864 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 865 | |
| 866 | proxyArp.processPacketIn(pkt); |
| 867 | |
| 868 | assertEquals(0, packetService.packets.size()); |
| 869 | |
| 870 | // Request for a valid internal IP address but coming in an external port |
| 871 | packetService.packets.clear(); |
| 872 | ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 873 | MAC1, |
| 874 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 875 | theirIp, |
| 876 | IP3); |
| 877 | |
| 878 | pkt = new DefaultInboundPacket(CP1, ndpRequest, |
| 879 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 880 | |
| 881 | proxyArp.processPacketIn(pkt); |
| 882 | |
| 883 | assertEquals(0, packetService.packets.size()); |
| 884 | } |
| 885 | |
| 886 | /** |
| 887 | * Test ARP request from internal network to an external host. |
| 888 | */ |
| 889 | @Test |
| 890 | public void testReplyToRequestFromUs() { |
| 891 | Ip4Address ourIp = Ip4Address.valueOf("10.0.1.1"); |
| 892 | MacAddress ourMac = MacAddress.valueOf(1L); |
| 893 | Ip4Address theirIp = Ip4Address.valueOf("10.0.1.100"); |
| 894 | |
| 895 | expect(hostService.getHostsByIp(theirIp)).andReturn(Collections.emptySet()); |
| 896 | expect(interfaceService.getInterfacesByIp(ourIp)).andReturn( |
| 897 | Collections.singleton(new Interface(getLocation(1), |
| 898 | Collections.singleton(new InterfaceIpAddress(ourIp, IpPrefix.valueOf("10.0.1.1/24"))), |
| 899 | ourMac, VLAN1))); |
| 900 | expect(hostService.getHost(HostId.hostId(ourMac, VLAN1))).andReturn(null); |
| 901 | replay(hostService); |
| 902 | replay(interfaceService); |
| 903 | |
| 904 | // This is a request from something inside our network (like a BGP |
| 905 | // daemon) to an external host. |
| 906 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, ourMac, null, ourIp, theirIp); |
| 907 | //Ensure the packet is allowed through (it is not to an internal port) |
| 908 | |
| 909 | InboundPacket pkt = |
| 910 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(5), P1), |
| 911 | arpRequest, |
| 912 | ByteBuffer.wrap(arpRequest.serialize())); |
| 913 | proxyArp.processPacketIn(pkt); |
| 914 | |
| 915 | assertEquals(1, packetService.packets.size()); |
| 916 | |
| 917 | verifyPacketOut(arpRequest, getLocation(1), packetService.packets.get(0)); |
| 918 | |
| 919 | // The same request from a random external port should fail |
| 920 | packetService.packets.clear(); |
| 921 | pkt = new DefaultInboundPacket(new ConnectPoint(getDeviceId(2), P1), |
| 922 | arpRequest, |
| 923 | ByteBuffer.wrap(arpRequest.serialize())); |
| 924 | |
| 925 | proxyArp.processPacketIn(pkt); |
| 926 | |
| 927 | assertEquals(0, packetService.packets.size()); |
| 928 | } |
| 929 | |
| 930 | /** |
| 931 | * Test NDP request from internal network to an external host. |
| 932 | */ |
| 933 | @Test |
| 934 | public void testReplyToRequestFromUsIpv6() { |
| 935 | Ip6Address ourIp = Ip6Address.valueOf("1000::1"); |
| 936 | MacAddress ourMac = MacAddress.valueOf(1L); |
| 937 | Ip6Address theirIp = Ip6Address.valueOf("1000::100"); |
| 938 | |
| 939 | expect(hostService.getHostsByIp(theirIp)).andReturn(Collections.emptySet()); |
| 940 | expect(interfaceService.getInterfacesByIp(ourIp)) |
| 941 | .andReturn(Collections.singleton(new Interface(getLocation(1), |
| 942 | Collections.singleton(new InterfaceIpAddress( |
| 943 | ourIp, |
| 944 | IpPrefix.valueOf("1000::1/64"))), |
| 945 | ourMac, |
| 946 | VLAN1))); |
| 947 | expect(hostService.getHost(HostId.hostId(ourMac, VLAN1))).andReturn(null); |
| 948 | replay(hostService); |
| 949 | replay(interfaceService); |
| 950 | |
| 951 | // This is a request from something inside our network (like a BGP |
| 952 | // daemon) to an external host. |
| 953 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 954 | ourMac, |
| 955 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 956 | ourIp, |
| 957 | theirIp); |
| 958 | |
| 959 | InboundPacket pkt = |
| 960 | new DefaultInboundPacket(new ConnectPoint(getDeviceId(5), P1), |
| 961 | ndpRequest, |
| 962 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 963 | proxyArp.processPacketIn(pkt); |
| 964 | |
| 965 | assertEquals(1, packetService.packets.size()); |
| 966 | |
| 967 | verifyPacketOut(ndpRequest, getLocation(1), packetService.packets.get(0)); |
| 968 | |
| 969 | // The same request from a random external port should fail |
| 970 | packetService.packets.clear(); |
| 971 | |
| 972 | pkt = new DefaultInboundPacket(new ConnectPoint(getDeviceId(2), P1), |
| 973 | ndpRequest, |
| 974 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 975 | |
| 976 | proxyArp.processPacketIn(pkt); |
| 977 | |
| 978 | assertEquals(0, packetService.packets.size()); |
| 979 | } |
| 980 | |
| 981 | |
| 982 | /** |
| 983 | * Request for a valid IPv4 address for BGP peer and coming from a |
| 984 | * BGP peer. |
| 985 | */ |
| 986 | @Test |
| 987 | public void testReplyExternalPortForPeer() { |
| 988 | Ip4Address peer1 = Ip4Address.valueOf(PEER1_IP); |
| 989 | MacAddress ourMac = MacAddress.valueOf(1L); |
| 990 | Ip4Address peer2 = Ip4Address.valueOf(PEER2_IP); |
| 991 | |
| 992 | expect(hostService.getHostsByIp(peer2)).andReturn(Collections.emptySet()); |
| 993 | expect(interfaceService.getInterfacesByIp(peer1)).andReturn( |
| 994 | Collections.singleton( |
| 995 | new Interface(getLocation(1), |
| 996 | Collections.singleton( |
| 997 | new InterfaceIpAddress( |
| 998 | peer1, |
| 999 | IpPrefix.valueOf("10.0.1.1/24"))), |
| 1000 | ourMac, VLAN1))); |
| 1001 | expect(hostService.getHost(HostId.hostId(ourMac, VLAN1))).andReturn(null); |
| 1002 | replay(hostService); |
| 1003 | replay(interfaceService); |
| 1004 | |
| 1005 | addPeersToBgpConfig(); |
| 1006 | |
| 1007 | // Request for a valid external IP address belonging to BGP peer |
| 1008 | Ethernet arpRequest = buildArp(ARP.OP_REQUEST, VLAN1, MAC1, null, peer1, |
| 1009 | peer2); |
| 1010 | InboundPacket pkt = |
| 1011 | new DefaultInboundPacket(CP1, arpRequest, |
| 1012 | ByteBuffer.wrap(arpRequest.serialize())); |
| 1013 | proxyArp.processPacketIn(pkt); |
| 1014 | |
| 1015 | assertEquals(1, packetService.packets.size()); |
| 1016 | } |
| 1017 | |
| 1018 | /** |
| 1019 | * Request for a valid IPv6 address for BGP peer and coming from a |
| 1020 | * BGP peer. |
| 1021 | */ |
| 1022 | @Test |
| 1023 | public void testReplyExternalPortForPeerIpv6() { |
| 1024 | Ip6Address peer1 = Ip6Address.valueOf(PEER1_IP6); |
| 1025 | MacAddress peer1Mac = MacAddress.valueOf(1L); |
| 1026 | Ip6Address peer2 = Ip6Address.valueOf(PEER2_IP6); |
| 1027 | |
| 1028 | expect(hostService.getHostsByIp(peer2)).andReturn(Collections.emptySet()); |
| 1029 | expect(interfaceService.getInterfacesByIp(peer1)) |
| 1030 | .andReturn(Collections.singleton(new Interface(getLocation(1), |
| 1031 | Collections.singleton(new InterfaceIpAddress( |
| 1032 | peer1, |
| 1033 | IpPrefix.valueOf("1000::1/64"))), |
| 1034 | peer1Mac, |
| 1035 | VLAN1))); |
| 1036 | expect(hostService.getHost(HostId.hostId(peer1Mac, VLAN1))).andReturn(null); |
| 1037 | replay(hostService); |
| 1038 | replay(interfaceService); |
| 1039 | |
| 1040 | addPeersToBgpConfig(); |
| 1041 | |
| 1042 | Ethernet ndpRequest = buildNdp(ICMP6.NEIGHBOR_SOLICITATION, |
| 1043 | MAC1, |
| 1044 | MacAddress.valueOf("33:33:ff:00:00:01"), |
| 1045 | peer1, |
| 1046 | peer2); |
| 1047 | |
| 1048 | InboundPacket pkt = |
| 1049 | new DefaultInboundPacket(CP1, ndpRequest, |
| 1050 | ByteBuffer.wrap(ndpRequest.serialize())); |
| 1051 | |
| 1052 | proxyArp.processPacketIn(pkt); |
| 1053 | |
| 1054 | assertEquals(1, packetService.packets.size()); |
| 1055 | } |
| 1056 | |
| 1057 | private void addPeersToBgpConfig() { |
| 1058 | reset(bgpConfig); |
| 1059 | |
| 1060 | Set<BgpConfig.BgpSpeakerConfig> speakers = new HashSet<>(); |
| 1061 | |
| 1062 | Optional<String> speakerName = Optional.empty(); |
| 1063 | ConnectPoint connectPoint = CP2; |
| 1064 | Set<IpAddress> connectedPeers = |
| 1065 | new HashSet<>(Arrays.asList(IpAddress.valueOf(PEER1_IP), |
| 1066 | IpAddress.valueOf(PEER2_IP), |
| 1067 | IpAddress.valueOf(PEER1_IP6), |
| 1068 | IpAddress.valueOf(PEER2_IP6))); |
| 1069 | |
| 1070 | speakers.add(new BgpConfig.BgpSpeakerConfig(speakerName, |
| 1071 | connectPoint, |
| 1072 | connectedPeers)); |
| 1073 | |
| 1074 | expect(bgpConfig.bgpSpeakers()).andReturn(speakers).anyTimes(); |
| 1075 | replay(bgpConfig); |
| 1076 | } |
| 1077 | |
| 1078 | /** |
| 1079 | * Verifies that the given packet was flooded out all available edge ports, |
| 1080 | * except for the input port. |
| 1081 | * |
| 1082 | * @param packet the packet that was expected to be flooded |
| 1083 | * @param connectPoints the connectPoints where the outpacket should be |
| 1084 | * observed |
| 1085 | */ |
| 1086 | private void verifyFlood(Ethernet packet, List<ConnectPoint> connectPoints) { |
| 1087 | |
| 1088 | // There should be 1 less than NUM_FLOOD_PORTS; the inPort should be excluded. |
| 1089 | assertEquals(connectPoints.size() - 1, packetService.packets.size()); |
| 1090 | |
| 1091 | Collections.sort(packetService.packets, |
| 1092 | (o1, o2) -> o1.sendThrough().uri().compareTo(o2.sendThrough().uri())); |
| 1093 | |
| 1094 | for (int i = 0; i < connectPoints.size() - 1; i++) { |
| 1095 | OutboundPacket outboundPacket = packetService.packets.get(i); |
| 1096 | verifyPacketOut(packet, connectPoints.get(i), outboundPacket); |
| 1097 | } |
| 1098 | } |
| 1099 | |
| 1100 | /** |
| 1101 | * Verifies the given packet was sent out the given port. |
| 1102 | * |
| 1103 | * @param expected the packet that was expected to be sent |
| 1104 | * @param outPort the port the packet was expected to be sent out |
| 1105 | * @param actual the actual OutboundPacket to verify |
| 1106 | */ |
| 1107 | private void verifyPacketOut(Ethernet expected, ConnectPoint outPort, |
| 1108 | OutboundPacket actual) { |
| 1109 | assertArrayEquals(expected.serialize(), actual.data().array()); |
| 1110 | assertEquals(1, actual.treatment().immediate().size()); |
| 1111 | assertEquals(outPort.deviceId(), actual.sendThrough()); |
| 1112 | Instruction instruction = actual.treatment().immediate().get(0); |
| 1113 | assertTrue(instruction instanceof OutputInstruction); |
| 1114 | assertEquals(outPort.port(), ((OutputInstruction) instruction).port()); |
| 1115 | } |
| 1116 | |
| 1117 | /** |
| 1118 | * Returns the device ID of the ith device. |
| 1119 | * |
| 1120 | * @param i device to get the ID of |
| 1121 | * @return the device ID |
| 1122 | */ |
| 1123 | private static DeviceId getDeviceId(int i) { |
| 1124 | return DeviceId.deviceId("" + i); |
| 1125 | } |
| 1126 | |
| 1127 | private static HostLocation getLocation(int i) { |
| 1128 | return new HostLocation(new ConnectPoint(getDeviceId(i), P1), 123L); |
| 1129 | } |
| 1130 | |
| 1131 | /** |
| 1132 | * Builds an ARP packet with the given parameters. |
| 1133 | * |
| 1134 | * @param opcode opcode of the ARP packet |
| 1135 | * @param srcMac source MAC address |
| 1136 | * @param dstMac destination MAC address, or null if this is a request |
| 1137 | * @param srcIp source IP address |
| 1138 | * @param dstIp destination IP address |
| 1139 | * @return the ARP packet |
| 1140 | */ |
| 1141 | private Ethernet buildArp(short opcode, VlanId vlanId, MacAddress srcMac, |
| 1142 | MacAddress dstMac, Ip4Address srcIp, Ip4Address dstIp) { |
| 1143 | Ethernet eth = new Ethernet(); |
| 1144 | |
| 1145 | if (dstMac == null) { |
| 1146 | eth.setDestinationMACAddress(MacAddress.BROADCAST); |
| 1147 | } else { |
| 1148 | eth.setDestinationMACAddress(dstMac); |
| 1149 | } |
| 1150 | |
| 1151 | eth.setSourceMACAddress(srcMac); |
| 1152 | eth.setEtherType(Ethernet.TYPE_ARP); |
| 1153 | eth.setVlanID(vlanId.toShort()); |
| 1154 | |
| 1155 | ARP arp = new ARP(); |
| 1156 | arp.setOpCode(opcode); |
| 1157 | arp.setProtocolType(ARP.PROTO_TYPE_IP); |
| 1158 | arp.setHardwareType(ARP.HW_TYPE_ETHERNET); |
| 1159 | |
| 1160 | arp.setProtocolAddressLength((byte) Ip4Address.BYTE_LENGTH); |
| 1161 | arp.setHardwareAddressLength((byte) Ethernet.DATALAYER_ADDRESS_LENGTH); |
| 1162 | arp.setSenderHardwareAddress(srcMac.toBytes()); |
| 1163 | |
| 1164 | if (dstMac == null) { |
| 1165 | arp.setTargetHardwareAddress(zeroMacAddress); |
| 1166 | } else { |
| 1167 | arp.setTargetHardwareAddress(dstMac.toBytes()); |
| 1168 | } |
| 1169 | |
| 1170 | arp.setSenderProtocolAddress(srcIp.toOctets()); |
| 1171 | arp.setTargetProtocolAddress(dstIp.toOctets()); |
| 1172 | |
| 1173 | eth.setPayload(arp); |
| 1174 | return eth; |
| 1175 | } |
| 1176 | |
| 1177 | /** |
| 1178 | * Builds an NDP packet with the given parameters. |
| 1179 | * |
| 1180 | * @param type NeighborSolicitation or NeighborAdvertisement |
| 1181 | * @param srcMac source MAC address |
| 1182 | * @param dstMac destination MAC address, or null if this is a request |
| 1183 | * @param srcIp source IP address |
| 1184 | * @param dstIp destination IP address |
| 1185 | * @return the NDP packet |
| 1186 | */ |
| 1187 | private Ethernet buildNdp(byte type, MacAddress srcMac, MacAddress dstMac, |
| 1188 | Ip6Address srcIp, Ip6Address dstIp) { |
| 1189 | assertThat(type, anyOf( |
| 1190 | is(ICMP6.NEIGHBOR_SOLICITATION), |
| 1191 | is(ICMP6.NEIGHBOR_ADVERTISEMENT) |
| 1192 | )); |
| 1193 | assertNotNull(srcMac); |
| 1194 | assertNotNull(dstMac); |
| 1195 | assertNotNull(srcIp); |
| 1196 | assertNotNull(dstIp); |
| 1197 | |
| 1198 | IPacket ndp; |
| 1199 | if (type == ICMP6.NEIGHBOR_SOLICITATION) { |
| 1200 | ndp = new NeighborSolicitation().setTargetAddress(dstIp.toOctets()); |
| 1201 | } else { |
| 1202 | ndp = new NeighborAdvertisement() |
| 1203 | .setSolicitedFlag((byte) 1) |
| 1204 | .setOverrideFlag((byte) 1) |
| 1205 | .setTargetAddress(srcIp.toOctets()) |
| 1206 | .addOption(NeighborDiscoveryOptions.TYPE_TARGET_LL_ADDRESS, |
| 1207 | srcMac.toBytes()); |
| 1208 | } |
| 1209 | |
| 1210 | ICMP6 icmp6 = new ICMP6(); |
| 1211 | icmp6.setIcmpType(type); |
| 1212 | icmp6.setIcmpCode((byte) 0); |
| 1213 | icmp6.setPayload(ndp); |
| 1214 | |
| 1215 | IPv6 ipv6 = new IPv6(); |
| 1216 | ipv6.setDestinationAddress(dstIp.toOctets()); |
| 1217 | ipv6.setSourceAddress(srcIp.toOctets()); |
| 1218 | ipv6.setNextHeader(IPv6.PROTOCOL_ICMP6); |
| 1219 | ipv6.setHopLimit((byte) 255); |
| 1220 | ipv6.setPayload(icmp6); |
| 1221 | |
| 1222 | Ethernet eth = new Ethernet(); |
| 1223 | eth.setDestinationMACAddress(dstMac); |
| 1224 | eth.setSourceMACAddress(srcMac); |
| 1225 | eth.setEtherType(Ethernet.TYPE_IPV6); |
| 1226 | eth.setVlanID(VLAN1.toShort()); |
| 1227 | eth.setPayload(ipv6); |
| 1228 | |
| 1229 | return eth; |
| 1230 | } |
| 1231 | |
| 1232 | /** |
| 1233 | * Test PacketService implementation that simply stores OutboundPackets |
| 1234 | * passed to {@link #emit(OutboundPacket)} for later verification. |
| 1235 | */ |
| 1236 | class TestPacketService extends PacketServiceAdapter { |
| 1237 | |
| 1238 | List<OutboundPacket> packets = new ArrayList<>(); |
| 1239 | |
| 1240 | @Override |
| 1241 | public void emit(OutboundPacket packet) { |
| 1242 | packets.add(packet); |
| 1243 | } |
| 1244 | } |
| 1245 | } |
| 1246 | |