Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 1 | /** |
| 2 | * Copyright 2011, Big Switch Networks, Inc. |
| 3 | * Originally created by David Erickson, Stanford University |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 6 | * not use this file except in compliance with the License. You may obtain |
| 7 | * a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 13 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 14 | * License for the specific language governing permissions and limitations |
| 15 | * under the License. |
| 16 | **/ |
| 17 | |
| 18 | package net.floodlightcontroller.forwarding; |
| 19 | |
| 20 | import static org.easymock.EasyMock.*; |
| 21 | |
| 22 | import java.util.ArrayList; |
| 23 | import java.util.Date; |
| 24 | import java.util.HashMap; |
| 25 | import java.util.List; |
| 26 | import java.util.Map; |
| 27 | |
| 28 | import net.floodlightcontroller.core.FloodlightContext; |
| 29 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 30 | import net.floodlightcontroller.core.IOFSwitch; |
| 31 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 32 | import net.floodlightcontroller.core.test.MockFloodlightProvider; |
| 33 | import net.floodlightcontroller.core.test.MockThreadPoolService; |
| 34 | import net.floodlightcontroller.devicemanager.internal.DefaultEntityClassifier; |
| 35 | import net.floodlightcontroller.devicemanager.test.MockDeviceManager; |
| 36 | import net.floodlightcontroller.counter.CounterStore; |
| 37 | import net.floodlightcontroller.counter.ICounterStoreService; |
| 38 | import net.floodlightcontroller.devicemanager.IDevice; |
| 39 | import net.floodlightcontroller.devicemanager.IDeviceService; |
| 40 | import net.floodlightcontroller.devicemanager.IEntityClassifierService; |
| 41 | import net.floodlightcontroller.packet.Data; |
| 42 | import net.floodlightcontroller.packet.Ethernet; |
| 43 | import net.floodlightcontroller.packet.IPacket; |
| 44 | import net.floodlightcontroller.packet.IPv4; |
| 45 | import net.floodlightcontroller.packet.UDP; |
| 46 | import net.floodlightcontroller.routing.IRoutingService; |
| 47 | import net.floodlightcontroller.routing.Route; |
| 48 | import net.floodlightcontroller.test.FloodlightTestCase; |
| 49 | import net.floodlightcontroller.threadpool.IThreadPoolService; |
| 50 | import net.floodlightcontroller.topology.ITopologyListener; |
| 51 | import net.floodlightcontroller.topology.ITopologyService; |
| 52 | import net.floodlightcontroller.topology.NodePortTuple; |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 53 | import net.floodlightcontroller.forwarding.Forwarding; |
| 54 | |
| 55 | import org.easymock.Capture; |
| 56 | import org.easymock.CaptureType; |
| 57 | import org.easymock.EasyMock; |
| 58 | import org.junit.Test; |
| 59 | import org.openflow.protocol.OFFeaturesReply; |
| 60 | import org.openflow.protocol.OFFlowMod; |
| 61 | import org.openflow.protocol.OFMatch; |
| 62 | import org.openflow.protocol.OFMessage; |
| 63 | import org.openflow.protocol.OFPacketIn; |
| 64 | import org.openflow.protocol.OFPacketOut; |
| 65 | import org.openflow.protocol.OFPort; |
| 66 | import org.openflow.protocol.OFType; |
| 67 | import org.openflow.protocol.OFPacketIn.OFPacketInReason; |
| 68 | import org.openflow.protocol.action.OFAction; |
| 69 | import org.openflow.protocol.action.OFActionOutput; |
| 70 | import org.openflow.util.HexString; |
| 71 | |
| 72 | public class ForwardingTest extends FloodlightTestCase { |
| 73 | protected MockFloodlightProvider mockFloodlightProvider; |
| 74 | protected FloodlightContext cntx; |
| 75 | protected MockDeviceManager deviceManager; |
| 76 | protected IRoutingService routingEngine; |
| 77 | protected Forwarding forwarding; |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 78 | protected ITopologyService topology; |
| 79 | protected MockThreadPoolService threadPool; |
| 80 | protected IOFSwitch sw1, sw2; |
| 81 | protected OFFeaturesReply swFeatures; |
| 82 | protected IDevice srcDevice, dstDevice1, dstDevice2; |
| 83 | protected OFPacketIn packetIn; |
| 84 | protected OFPacketOut packetOut; |
| 85 | protected OFPacketOut packetOutFlooded; |
| 86 | protected IPacket testPacket; |
| 87 | protected byte[] testPacketSerialized; |
| 88 | protected int expected_wildcards; |
| 89 | protected Date currentDate; |
| 90 | |
| 91 | @Override |
| 92 | public void setUp() throws Exception { |
| 93 | super.setUp(); |
| 94 | |
| 95 | cntx = new FloodlightContext(); |
| 96 | |
| 97 | // Module loader setup |
| 98 | /* |
| 99 | Collection<Class<? extends IFloodlightModule>> mods = new ArrayList<Class<? extends IFloodlightModule>>(); |
| 100 | Collection<IFloodlightService> mockedServices = new ArrayList<IFloodlightService>(); |
| 101 | mods.add(Forwarding.class); |
| 102 | routingEngine = createMock(IRoutingService.class); |
| 103 | topology = createMock(ITopologyService.class); |
| 104 | mockedServices.add(routingEngine); |
| 105 | mockedServices.add(topology); |
| 106 | FloodlightTestModuleLoader fml = new FloodlightTestModuleLoader(); |
| 107 | fml.setupModules(mods, mockedServices); |
| 108 | mockFloodlightProvider = |
| 109 | (MockFloodlightProvider) fml.getModuleByName(MockFloodlightProvider.class); |
| 110 | deviceManager = |
| 111 | (MockDeviceManager) fml.getModuleByName(MockDeviceManager.class); |
| 112 | threadPool = |
| 113 | (MockThreadPoolService) fml.getModuleByName(MockThreadPoolService.class); |
| 114 | forwarding = |
| 115 | (Forwarding) fml.getModuleByName(Forwarding.class); |
| 116 | */ |
| 117 | mockFloodlightProvider = getMockFloodlightProvider(); |
| 118 | forwarding = new Forwarding(); |
| 119 | threadPool = new MockThreadPoolService(); |
| 120 | deviceManager = new MockDeviceManager(); |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 121 | routingEngine = createMock(IRoutingService.class); |
| 122 | topology = createMock(ITopologyService.class); |
| 123 | DefaultEntityClassifier entityClassifier = new DefaultEntityClassifier(); |
| 124 | |
| 125 | |
| 126 | FloodlightModuleContext fmc = new FloodlightModuleContext(); |
| 127 | fmc.addService(IFloodlightProviderService.class, |
| 128 | mockFloodlightProvider); |
| 129 | fmc.addService(IThreadPoolService.class, threadPool); |
| 130 | fmc.addService(ITopologyService.class, topology); |
| 131 | fmc.addService(IRoutingService.class, routingEngine); |
| 132 | fmc.addService(ICounterStoreService.class, new CounterStore()); |
| 133 | fmc.addService(IDeviceService.class, deviceManager); |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 134 | fmc.addService(IEntityClassifierService.class, entityClassifier); |
| 135 | |
| 136 | topology.addListener(anyObject(ITopologyListener.class)); |
| 137 | expectLastCall().anyTimes(); |
| 138 | replay(topology); |
| 139 | threadPool.init(fmc); |
| 140 | forwarding.init(fmc); |
| 141 | deviceManager.init(fmc); |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 142 | entityClassifier.init(fmc); |
| 143 | threadPool.startUp(fmc); |
| 144 | deviceManager.startUp(fmc); |
| 145 | forwarding.startUp(fmc); |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 146 | entityClassifier.startUp(fmc); |
| 147 | verify(topology); |
| 148 | |
| 149 | swFeatures = new OFFeaturesReply(); |
| 150 | swFeatures.setBuffers(1000); |
| 151 | // Mock switches |
| 152 | sw1 = EasyMock.createMock(IOFSwitch.class); |
| 153 | expect(sw1.getId()).andReturn(1L).anyTimes(); |
| 154 | expect(sw1.getBuffers()).andReturn(swFeatures.getBuffers()).anyTimes(); |
| 155 | expect(sw1.getStringId()) |
| 156 | .andReturn(HexString.toHexString(1L)).anyTimes(); |
| 157 | |
| 158 | sw2 = EasyMock.createMock(IOFSwitch.class); |
| 159 | expect(sw2.getId()).andReturn(2L).anyTimes(); |
| 160 | expect(sw2.getBuffers()).andReturn(swFeatures.getBuffers()).anyTimes(); |
| 161 | expect(sw2.getStringId()) |
| 162 | .andReturn(HexString.toHexString(2L)).anyTimes(); |
| 163 | |
| 164 | //fastWilcards mocked as this constant |
| 165 | int fastWildcards = |
| 166 | OFMatch.OFPFW_IN_PORT | |
| 167 | OFMatch.OFPFW_NW_PROTO | |
| 168 | OFMatch.OFPFW_TP_SRC | |
| 169 | OFMatch.OFPFW_TP_DST | |
| 170 | OFMatch.OFPFW_NW_SRC_ALL | |
| 171 | OFMatch.OFPFW_NW_DST_ALL | |
| 172 | OFMatch.OFPFW_NW_TOS; |
| 173 | |
| 174 | expect(sw1.getAttribute(IOFSwitch.PROP_FASTWILDCARDS)).andReturn((Integer)fastWildcards).anyTimes(); |
| 175 | expect(sw1.hasAttribute(IOFSwitch.PROP_SUPPORTS_OFPP_TABLE)).andReturn(true).anyTimes(); |
| 176 | |
| 177 | expect(sw2.getAttribute(IOFSwitch.PROP_FASTWILDCARDS)).andReturn((Integer)fastWildcards).anyTimes(); |
| 178 | expect(sw2.hasAttribute(IOFSwitch.PROP_SUPPORTS_OFPP_TABLE)).andReturn(true).anyTimes(); |
| 179 | |
| 180 | // Load the switch map |
| 181 | Map<Long, IOFSwitch> switches = new HashMap<Long, IOFSwitch>(); |
| 182 | switches.put(1L, sw1); |
| 183 | switches.put(2L, sw2); |
| 184 | mockFloodlightProvider.setSwitches(switches); |
| 185 | |
| 186 | // Build test packet |
| 187 | testPacket = new Ethernet() |
| 188 | .setDestinationMACAddress("00:11:22:33:44:55") |
| 189 | .setSourceMACAddress("00:44:33:22:11:00") |
| 190 | .setEtherType(Ethernet.TYPE_IPv4) |
| 191 | .setPayload( |
| 192 | new IPv4() |
| 193 | .setTtl((byte) 128) |
| 194 | .setSourceAddress("192.168.1.1") |
| 195 | .setDestinationAddress("192.168.1.2") |
| 196 | .setPayload(new UDP() |
| 197 | .setSourcePort((short) 5000) |
| 198 | .setDestinationPort((short) 5001) |
| 199 | .setPayload(new Data(new byte[] {0x01})))); |
| 200 | |
| 201 | |
| 202 | |
| 203 | currentDate = new Date(); |
| 204 | |
| 205 | // Mock Packet-in |
| 206 | testPacketSerialized = testPacket.serialize(); |
| 207 | packetIn = |
| 208 | ((OFPacketIn) mockFloodlightProvider.getOFMessageFactory(). |
| 209 | getMessage(OFType.PACKET_IN)) |
| 210 | .setBufferId(-1) |
| 211 | .setInPort((short) 1) |
| 212 | .setPacketData(testPacketSerialized) |
| 213 | .setReason(OFPacketInReason.NO_MATCH) |
| 214 | .setTotalLength((short) testPacketSerialized.length); |
| 215 | |
| 216 | // Mock Packet-out |
| 217 | packetOut = |
| 218 | (OFPacketOut) mockFloodlightProvider.getOFMessageFactory(). |
| 219 | getMessage(OFType.PACKET_OUT); |
| 220 | packetOut.setBufferId(this.packetIn.getBufferId()) |
| 221 | .setInPort(this.packetIn.getInPort()); |
| 222 | List<OFAction> poactions = new ArrayList<OFAction>(); |
| 223 | poactions.add(new OFActionOutput((short) 3, (short) 0xffff)); |
| 224 | packetOut.setActions(poactions) |
| 225 | .setActionsLength((short) OFActionOutput.MINIMUM_LENGTH) |
| 226 | .setPacketData(testPacketSerialized) |
| 227 | .setLengthU(OFPacketOut.MINIMUM_LENGTH+ |
| 228 | packetOut.getActionsLength()+ |
| 229 | testPacketSerialized.length); |
| 230 | |
| 231 | // Mock Packet-out with OFPP_FLOOD action |
| 232 | packetOutFlooded = |
| 233 | (OFPacketOut) mockFloodlightProvider.getOFMessageFactory(). |
| 234 | getMessage(OFType.PACKET_OUT); |
| 235 | packetOutFlooded.setBufferId(this.packetIn.getBufferId()) |
| 236 | .setInPort(this.packetIn.getInPort()); |
| 237 | poactions = new ArrayList<OFAction>(); |
| 238 | poactions.add(new OFActionOutput(OFPort.OFPP_FLOOD.getValue(), |
| 239 | (short) 0xffff)); |
| 240 | packetOutFlooded.setActions(poactions) |
| 241 | .setActionsLength((short) OFActionOutput.MINIMUM_LENGTH) |
| 242 | .setPacketData(testPacketSerialized) |
| 243 | .setLengthU(OFPacketOut.MINIMUM_LENGTH+ |
| 244 | packetOutFlooded.getActionsLength()+ |
| 245 | testPacketSerialized.length); |
| 246 | |
| 247 | expected_wildcards = fastWildcards; |
| 248 | expected_wildcards &= ~OFMatch.OFPFW_IN_PORT & |
| 249 | ~OFMatch.OFPFW_DL_VLAN & |
| 250 | ~OFMatch.OFPFW_DL_SRC & |
| 251 | ~OFMatch.OFPFW_DL_DST; |
| 252 | expected_wildcards &= ~OFMatch.OFPFW_NW_SRC_MASK & |
| 253 | ~OFMatch.OFPFW_NW_DST_MASK; |
| 254 | |
| 255 | IFloodlightProviderService.bcStore. |
| 256 | put(cntx, |
| 257 | IFloodlightProviderService.CONTEXT_PI_PAYLOAD, |
| 258 | (Ethernet)testPacket); |
| 259 | } |
| 260 | |
| 261 | enum DestDeviceToLearn { NONE, DEVICE1 ,DEVICE2 }; |
| 262 | public void learnDevices(DestDeviceToLearn destDeviceToLearn) { |
| 263 | // Build src and dest devices |
| 264 | byte[] dataLayerSource = ((Ethernet)testPacket).getSourceMACAddress(); |
| 265 | byte[] dataLayerDest = |
| 266 | ((Ethernet)testPacket).getDestinationMACAddress(); |
| 267 | int networkSource = |
| 268 | ((IPv4)((Ethernet)testPacket).getPayload()). |
| 269 | getSourceAddress(); |
| 270 | int networkDest = |
| 271 | ((IPv4)((Ethernet)testPacket).getPayload()). |
| 272 | getDestinationAddress(); |
| 273 | |
| 274 | reset(topology); |
| 275 | expect(topology.isAttachmentPointPort(1L, (short)1)) |
| 276 | .andReturn(true) |
| 277 | .anyTimes(); |
| 278 | expect(topology.isAttachmentPointPort(2L, (short)3)) |
| 279 | .andReturn(true) |
| 280 | .anyTimes(); |
| 281 | expect(topology.isAttachmentPointPort(1L, (short)3)) |
| 282 | .andReturn(true) |
| 283 | .anyTimes(); |
| 284 | replay(topology); |
| 285 | |
| 286 | srcDevice = |
| 287 | deviceManager.learnEntity(Ethernet.toLong(dataLayerSource), |
| 288 | null, networkSource, |
| 289 | 1L, 1); |
| 290 | IDeviceService.fcStore. put(cntx, |
| 291 | IDeviceService.CONTEXT_SRC_DEVICE, |
| 292 | srcDevice); |
| 293 | if (destDeviceToLearn == DestDeviceToLearn.DEVICE1) { |
| 294 | dstDevice1 = |
| 295 | deviceManager.learnEntity(Ethernet.toLong(dataLayerDest), |
| 296 | null, networkDest, |
| 297 | 2L, 3); |
| 298 | IDeviceService.fcStore.put(cntx, |
| 299 | IDeviceService.CONTEXT_DST_DEVICE, |
| 300 | dstDevice1); |
| 301 | } |
| 302 | if (destDeviceToLearn == DestDeviceToLearn.DEVICE2) { |
| 303 | dstDevice2 = |
| 304 | deviceManager.learnEntity(Ethernet.toLong(dataLayerDest), |
| 305 | null, networkDest, |
| 306 | 1L, 3); |
| 307 | IDeviceService.fcStore.put(cntx, |
| 308 | IDeviceService.CONTEXT_DST_DEVICE, |
| 309 | dstDevice2); |
| 310 | } |
| 311 | verify(topology); |
| 312 | } |
| 313 | |
| 314 | @Test |
| 315 | public void testForwardMultiSwitchPath() throws Exception { |
| 316 | learnDevices(DestDeviceToLearn.DEVICE1); |
| 317 | |
| 318 | Capture<OFMessage> wc1 = new Capture<OFMessage>(CaptureType.ALL); |
| 319 | Capture<OFMessage> wc2 = new Capture<OFMessage>(CaptureType.ALL); |
| 320 | Capture<FloodlightContext> bc1 = |
| 321 | new Capture<FloodlightContext>(CaptureType.ALL); |
| 322 | Capture<FloodlightContext> bc2 = |
| 323 | new Capture<FloodlightContext>(CaptureType.ALL); |
| 324 | |
| 325 | |
| 326 | Route route = new Route(1L, 2L); |
| 327 | List<NodePortTuple> nptList = new ArrayList<NodePortTuple>(); |
| 328 | nptList.add(new NodePortTuple(1L, (short)1)); |
| 329 | nptList.add(new NodePortTuple(1L, (short)3)); |
| 330 | nptList.add(new NodePortTuple(2L, (short)1)); |
| 331 | nptList.add(new NodePortTuple(2L, (short)3)); |
| 332 | route.setPath(nptList); |
| 333 | expect(routingEngine.getRoute(1L, (short)1, 2L, (short)3)).andReturn(route).atLeastOnce(); |
| 334 | |
| 335 | // Expected Flow-mods |
| 336 | OFMatch match = new OFMatch(); |
| 337 | match.loadFromPacket(testPacketSerialized, (short) 1); |
| 338 | OFActionOutput action = new OFActionOutput((short)3, (short)0xffff); |
| 339 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 340 | actions.add(action); |
| 341 | |
| 342 | OFFlowMod fm1 = |
| 343 | (OFFlowMod) mockFloodlightProvider.getOFMessageFactory(). |
| 344 | getMessage(OFType.FLOW_MOD); |
| 345 | fm1.setIdleTimeout((short)5) |
| 346 | .setMatch(match.clone() |
| 347 | .setWildcards(expected_wildcards)) |
| 348 | .setActions(actions) |
| 349 | .setBufferId(OFPacketOut.BUFFER_ID_NONE) |
| 350 | .setCookie(2L << 52) |
| 351 | .setLengthU(OFFlowMod.MINIMUM_LENGTH+OFActionOutput.MINIMUM_LENGTH); |
| 352 | OFFlowMod fm2 = fm1.clone(); |
| 353 | ((OFActionOutput)fm2.getActions().get(0)).setPort((short) 3); |
| 354 | |
| 355 | sw1.write(capture(wc1), capture(bc1)); |
| 356 | expectLastCall().anyTimes(); |
| 357 | sw2.write(capture(wc2), capture(bc2)); |
| 358 | expectLastCall().anyTimes(); |
| 359 | |
| 360 | reset(topology); |
| 361 | expect(topology.getL2DomainId(1L)).andReturn(1L).anyTimes(); |
| 362 | expect(topology.getL2DomainId(2L)).andReturn(1L).anyTimes(); |
| 363 | expect(topology.isAttachmentPointPort(1L, (short)1)).andReturn(true).anyTimes(); |
| 364 | expect(topology.isAttachmentPointPort(2L, (short)3)).andReturn(true).anyTimes(); |
| 365 | expect(topology.isIncomingBroadcastAllowed(anyLong(), anyShort())).andReturn(true).anyTimes(); |
| 366 | |
| 367 | // Reset mocks, trigger the packet in, and validate results |
| 368 | replay(sw1, sw2, routingEngine, topology); |
| 369 | forwarding.receive(sw1, this.packetIn, cntx); |
| 370 | verify(sw1, sw2, routingEngine); |
| 371 | |
| 372 | assertTrue(wc1.hasCaptured()); // wc1 should get packetout + flowmod. |
| 373 | assertTrue(wc2.hasCaptured()); // wc2 should be a flowmod. |
| 374 | |
| 375 | List<OFMessage> msglist = wc1.getValues(); |
| 376 | |
| 377 | for (OFMessage m: msglist) { |
| 378 | if (m instanceof OFFlowMod) |
| 379 | assertEquals(fm1, m); |
| 380 | else if (m instanceof OFPacketOut) |
| 381 | assertEquals(packetOut, m); |
| 382 | } |
| 383 | |
| 384 | OFMessage m = wc2.getValue(); |
| 385 | assert (m instanceof OFFlowMod); |
| 386 | assertTrue(m.equals(fm2)); |
| 387 | } |
| 388 | |
| 389 | @Test |
| 390 | public void testForwardSingleSwitchPath() throws Exception { |
| 391 | learnDevices(DestDeviceToLearn.DEVICE2); |
| 392 | |
| 393 | Route route = new Route(1L, 1L); |
| 394 | route.getPath().add(new NodePortTuple(1L, (short)1)); |
| 395 | route.getPath().add(new NodePortTuple(1L, (short)3)); |
| 396 | expect(routingEngine.getRoute(1L, (short)1, 1L, (short)3)).andReturn(route).atLeastOnce(); |
| 397 | |
| 398 | // Expected Flow-mods |
| 399 | OFMatch match = new OFMatch(); |
| 400 | match.loadFromPacket(testPacketSerialized, (short) 1); |
| 401 | OFActionOutput action = new OFActionOutput((short)3, (short)0xffff); |
| 402 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 403 | actions.add(action); |
| 404 | |
| 405 | OFFlowMod fm1 = |
| 406 | (OFFlowMod) mockFloodlightProvider.getOFMessageFactory(). |
| 407 | getMessage(OFType.FLOW_MOD); |
| 408 | fm1.setIdleTimeout((short)5) |
| 409 | .setMatch(match.clone() |
| 410 | .setWildcards(expected_wildcards)) |
| 411 | .setActions(actions) |
| 412 | .setBufferId(OFPacketOut.BUFFER_ID_NONE) |
| 413 | .setCookie(2L << 52) |
| 414 | .setLengthU(OFFlowMod.MINIMUM_LENGTH + |
| 415 | OFActionOutput.MINIMUM_LENGTH); |
| 416 | |
| 417 | // Record expected packet-outs/flow-mods |
| 418 | sw1.write(fm1, cntx); |
| 419 | sw1.write(packetOut, cntx); |
| 420 | |
| 421 | reset(topology); |
| 422 | expect(topology.isIncomingBroadcastAllowed(anyLong(), anyShort())).andReturn(true).anyTimes(); |
| 423 | expect(topology.getL2DomainId(1L)).andReturn(1L).anyTimes(); |
| 424 | expect(topology.isAttachmentPointPort(1L, (short)1)).andReturn(true).anyTimes(); |
| 425 | expect(topology.isAttachmentPointPort(1L, (short)3)).andReturn(true).anyTimes(); |
| 426 | |
| 427 | // Reset mocks, trigger the packet in, and validate results |
| 428 | replay(sw1, sw2, routingEngine, topology); |
| 429 | forwarding.receive(sw1, this.packetIn, cntx); |
| 430 | verify(sw1, sw2, routingEngine); |
| 431 | } |
| 432 | |
| 433 | @Test |
| 434 | public void testFlowModDampening() throws Exception { |
| 435 | learnDevices(DestDeviceToLearn.DEVICE2); |
| 436 | |
| 437 | reset(topology); |
| 438 | expect(topology.isAttachmentPointPort(EasyMock.anyLong(), EasyMock.anyShort())) |
| 439 | .andReturn(true).anyTimes(); |
| 440 | expect(topology.getL2DomainId(1L)).andReturn(1L).anyTimes(); |
| 441 | replay(topology); |
| 442 | |
| 443 | |
| 444 | Route route = new Route(1L, 1L); |
| 445 | route.getPath().add(new NodePortTuple(1L, (short)1)); |
| 446 | route.getPath().add(new NodePortTuple(1L, (short)3)); |
| 447 | expect(routingEngine.getRoute(1L, (short)1, 1L, (short)3)).andReturn(route).atLeastOnce(); |
| 448 | |
| 449 | // Expected Flow-mods |
| 450 | OFMatch match = new OFMatch(); |
| 451 | match.loadFromPacket(testPacketSerialized, (short) 1); |
| 452 | OFActionOutput action = new OFActionOutput((short)3, (short)0xffff); |
| 453 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 454 | actions.add(action); |
| 455 | |
| 456 | OFFlowMod fm1 = |
| 457 | (OFFlowMod) mockFloodlightProvider.getOFMessageFactory(). |
| 458 | getMessage(OFType.FLOW_MOD); |
| 459 | fm1.setIdleTimeout((short)5) |
| 460 | .setMatch(match.clone() |
| 461 | .setWildcards(expected_wildcards)) |
| 462 | .setActions(actions) |
| 463 | .setBufferId(OFPacketOut.BUFFER_ID_NONE) |
| 464 | .setCookie(2L << 52) |
| 465 | .setLengthU(OFFlowMod.MINIMUM_LENGTH + |
| 466 | OFActionOutput.MINIMUM_LENGTH); |
| 467 | |
| 468 | // Record expected packet-outs/flow-mods |
| 469 | // We will inject the packet_in 3 times and expect 1 flow mod and |
| 470 | // 3 packet outs due to flow mod dampening |
| 471 | sw1.write(fm1, cntx); |
| 472 | expectLastCall().once(); |
| 473 | sw1.write(packetOut, cntx); |
| 474 | expectLastCall().times(3); |
| 475 | |
| 476 | reset(topology); |
| 477 | expect(topology.isIncomingBroadcastAllowed(anyLong(), anyShort())).andReturn(true).anyTimes(); |
| 478 | expect(topology.getL2DomainId(1L)).andReturn(1L).anyTimes(); |
| 479 | expect(topology.isAttachmentPointPort(1L, (short)1)).andReturn(true).anyTimes(); |
| 480 | expect(topology.isAttachmentPointPort(1L, (short)3)).andReturn(true).anyTimes(); |
| 481 | |
| 482 | // Reset mocks, trigger the packet in, and validate results |
| 483 | replay(sw1, routingEngine, topology); |
| 484 | forwarding.receive(sw1, this.packetIn, cntx); |
| 485 | forwarding.receive(sw1, this.packetIn, cntx); |
| 486 | forwarding.receive(sw1, this.packetIn, cntx); |
| 487 | verify(sw1, routingEngine); |
| 488 | } |
| 489 | |
| 490 | @Test |
| 491 | public void testForwardNoPath() throws Exception { |
| 492 | learnDevices(DestDeviceToLearn.NONE); |
| 493 | |
| 494 | // Set no destination attachment point or route |
| 495 | // expect no Flow-mod but expect the packet to be flooded |
| 496 | |
| 497 | // Reset mocks, trigger the packet in, and validate results |
| 498 | reset(topology); |
| 499 | expect(topology.isIncomingBroadcastAllowed(1L, (short)1)).andReturn(true).anyTimes(); |
| 500 | expect(topology.isAttachmentPointPort(EasyMock.anyLong(), |
| 501 | EasyMock.anyShort())) |
| 502 | .andReturn(true) |
| 503 | .anyTimes(); |
| 504 | expect(sw1.hasAttribute(IOFSwitch.PROP_SUPPORTS_OFPP_FLOOD)) |
| 505 | .andReturn(true).anyTimes(); |
| 506 | sw1.write(packetOutFlooded, cntx); |
| 507 | expectLastCall().once(); |
| 508 | replay(sw1, sw2, routingEngine, topology); |
| 509 | forwarding.receive(sw1, this.packetIn, cntx); |
| 510 | verify(sw1, sw2, routingEngine); |
| 511 | } |
| 512 | |
| 513 | } |