Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 1 | package net.floodlightcontroller.topology; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.util.ArrayList; |
| 5 | import java.util.Collection; |
| 6 | import java.util.Date; |
| 7 | import java.util.HashMap; |
| 8 | import java.util.HashSet; |
| 9 | import java.util.List; |
| 10 | import java.util.Map; |
| 11 | import java.util.Set; |
| 12 | import java.util.concurrent.BlockingQueue; |
| 13 | import java.util.concurrent.LinkedBlockingQueue; |
| 14 | import java.util.concurrent.ScheduledExecutorService; |
| 15 | import java.util.concurrent.TimeUnit; |
| 16 | |
| 17 | import net.floodlightcontroller.core.FloodlightContext; |
| 18 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 19 | import net.floodlightcontroller.core.IFloodlightProviderService.Role; |
Pankaj Berde | 27c3a95 | 2013-06-10 21:26:25 -0700 | [diff] [blame] | 20 | import net.floodlightcontroller.core.INetMapStorage.DM_OPERATION; |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 21 | import net.floodlightcontroller.core.IOFMessageListener; |
| 22 | import net.floodlightcontroller.core.IOFSwitch; |
| 23 | import net.floodlightcontroller.core.IHAListener; |
| 24 | import net.floodlightcontroller.core.annotations.LogMessageCategory; |
| 25 | import net.floodlightcontroller.core.annotations.LogMessageDoc; |
| 26 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 27 | import net.floodlightcontroller.core.module.FloodlightModuleException; |
| 28 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 29 | import net.floodlightcontroller.core.module.IFloodlightService; |
| 30 | import net.floodlightcontroller.core.util.SingletonTask; |
| 31 | import net.floodlightcontroller.counter.ICounterStoreService; |
| 32 | import net.floodlightcontroller.linkdiscovery.ILinkDiscoveryListener; |
| 33 | import net.floodlightcontroller.linkdiscovery.ILinkDiscoveryService; |
| 34 | import net.floodlightcontroller.packet.BSN; |
| 35 | import net.floodlightcontroller.packet.Ethernet; |
| 36 | import net.floodlightcontroller.packet.LLDP; |
| 37 | import net.floodlightcontroller.restserver.IRestApiService; |
| 38 | import net.floodlightcontroller.routing.IRoutingService; |
| 39 | import net.floodlightcontroller.routing.Link; |
| 40 | import net.floodlightcontroller.routing.Route; |
| 41 | import net.floodlightcontroller.threadpool.IThreadPoolService; |
| 42 | import net.floodlightcontroller.topology.web.TopologyWebRoutable; |
| 43 | |
| 44 | import org.openflow.protocol.OFMessage; |
| 45 | import org.openflow.protocol.OFPacketIn; |
| 46 | import org.openflow.protocol.OFPacketOut; |
| 47 | import org.openflow.protocol.OFPort; |
| 48 | import org.openflow.protocol.action.OFAction; |
| 49 | import org.openflow.protocol.action.OFActionOutput; |
| 50 | import org.openflow.protocol.OFType; |
| 51 | import org.slf4j.Logger; |
| 52 | import org.slf4j.LoggerFactory; |
| 53 | |
| 54 | /** |
| 55 | * Topology manager is responsible for maintaining the controller's notion |
| 56 | * of the network graph, as well as implementing tools for finding routes |
| 57 | * through the topology. |
| 58 | */ |
| 59 | @LogMessageCategory("Network Topology") |
| 60 | public class TopologyManager implements |
| 61 | IFloodlightModule, ITopologyService, |
| 62 | IRoutingService, ILinkDiscoveryListener, |
| 63 | IOFMessageListener, IHAListener { |
| 64 | |
| 65 | protected static Logger log = LoggerFactory.getLogger(TopologyManager.class); |
| 66 | |
| 67 | public static final String CONTEXT_TUNNEL_ENABLED = |
| 68 | "com.bigswitch.floodlight.topologymanager.tunnelEnabled"; |
| 69 | |
| 70 | /** |
| 71 | * Set of ports for each switch |
| 72 | */ |
| 73 | protected Map<Long, Set<Short>> switchPorts; |
| 74 | |
| 75 | /** |
| 76 | * Set of links organized by node port tuple |
| 77 | */ |
| 78 | protected Map<NodePortTuple, Set<Link>> switchPortLinks; |
| 79 | |
| 80 | /** |
| 81 | * Set of direct links |
| 82 | */ |
| 83 | protected Map<NodePortTuple, Set<Link>> directLinks; |
| 84 | |
| 85 | /** |
| 86 | * set of links that are broadcast domain links. |
| 87 | */ |
| 88 | protected Map<NodePortTuple, Set<Link>> portBroadcastDomainLinks; |
| 89 | |
| 90 | /** |
| 91 | * set of tunnel links |
| 92 | */ |
| 93 | protected Map<NodePortTuple, Set<Link>> tunnelLinks; |
| 94 | |
| 95 | protected ILinkDiscoveryService linkDiscovery; |
| 96 | protected IThreadPoolService threadPool; |
| 97 | protected IFloodlightProviderService floodlightProvider; |
| 98 | protected IRestApiService restApi; |
| 99 | |
| 100 | // Modules that listen to our updates |
| 101 | protected ArrayList<ITopologyListener> topologyAware; |
| 102 | |
| 103 | protected BlockingQueue<LDUpdate> ldUpdates; |
| 104 | protected List<LDUpdate> appliedUpdates; |
| 105 | |
| 106 | // These must be accessed using getCurrentInstance(), not directly |
| 107 | protected TopologyInstance currentInstance; |
| 108 | protected TopologyInstance currentInstanceWithoutTunnels; |
| 109 | |
| 110 | protected SingletonTask newInstanceTask; |
| 111 | private Date lastUpdateTime; |
| 112 | |
| 113 | /** |
| 114 | * Flag that indicates if links (direct/tunnel/multihop links) were |
| 115 | * updated as part of LDUpdate. |
| 116 | */ |
| 117 | protected boolean linksUpdated; |
| 118 | /** |
| 119 | * Flag that indicates if direct or tunnel links were updated as |
| 120 | * part of LDUpdate. |
| 121 | */ |
| 122 | protected boolean dtLinksUpdated; |
| 123 | |
| 124 | /** |
| 125 | * Thread for recomputing topology. The thread is always running, |
| 126 | * however the function applyUpdates() has a blocking call. |
| 127 | */ |
| 128 | @LogMessageDoc(level="ERROR", |
| 129 | message="Error in topology instance task thread", |
| 130 | explanation="An unknown error occured in the topology " + |
| 131 | "discovery module.", |
| 132 | recommendation=LogMessageDoc.CHECK_CONTROLLER) |
| 133 | protected class UpdateTopologyWorker implements Runnable { |
| 134 | @Override |
| 135 | public void run() { |
| 136 | try { |
| 137 | updateTopology(); |
| 138 | } |
| 139 | catch (Exception e) { |
| 140 | log.error("Error in topology instance task thread", e); |
| 141 | } |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | public boolean updateTopology() { |
| 146 | boolean newInstanceFlag; |
| 147 | linksUpdated = false; |
| 148 | dtLinksUpdated = false; |
| 149 | applyUpdates(); |
| 150 | newInstanceFlag = createNewInstance(); |
| 151 | lastUpdateTime = new Date(); |
| 152 | informListeners(); |
| 153 | return newInstanceFlag; |
| 154 | } |
| 155 | |
| 156 | // ********************** |
| 157 | // ILinkDiscoveryListener |
| 158 | // ********************** |
| 159 | |
| 160 | @Override |
| 161 | public void linkDiscoveryUpdate(LDUpdate update) { |
| 162 | boolean scheduleFlag = false; |
| 163 | // if there's no udpates in the queue, then |
| 164 | // we need to schedule an update. |
| 165 | if (ldUpdates.peek() == null) |
| 166 | scheduleFlag = true; |
| 167 | |
| 168 | if (log.isTraceEnabled()) { |
| 169 | log.trace("Queuing update: {}", update); |
| 170 | } |
| 171 | ldUpdates.add(update); |
| 172 | |
| 173 | if (scheduleFlag) { |
| 174 | newInstanceTask.reschedule(1, TimeUnit.MICROSECONDS); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | // **************** |
| 179 | // ITopologyService |
| 180 | // **************** |
| 181 | |
| 182 | // |
| 183 | // ITopologyService interface methods |
| 184 | // |
| 185 | @Override |
| 186 | public Date getLastUpdateTime() { |
| 187 | return lastUpdateTime; |
| 188 | } |
| 189 | |
| 190 | @Override |
| 191 | public void addListener(ITopologyListener listener) { |
| 192 | topologyAware.add(listener); |
| 193 | } |
| 194 | |
| 195 | @Override |
| 196 | public boolean isAttachmentPointPort(long switchid, short port) { |
| 197 | return isAttachmentPointPort(switchid, port, true); |
| 198 | } |
| 199 | |
| 200 | @Override |
| 201 | public boolean isAttachmentPointPort(long switchid, short port, |
| 202 | boolean tunnelEnabled) { |
| 203 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 204 | |
| 205 | // if the port is not attachment point port according to |
| 206 | // topology instance, then return false |
| 207 | if (ti.isAttachmentPointPort(switchid, port) == false) |
| 208 | return false; |
| 209 | |
| 210 | // Check whether the port is a physical port. We should not learn |
| 211 | // attachment points on "special" ports. |
| 212 | if ((port & 0xff00) == 0xff00 && port != (short)0xfffe) return false; |
| 213 | |
| 214 | // Make sure that the port is enabled. |
| 215 | IOFSwitch sw = floodlightProvider.getSwitches().get(switchid); |
| 216 | if (sw == null) return false; |
| 217 | return (sw.portEnabled(port)); |
| 218 | } |
| 219 | |
| 220 | public long getOpenflowDomainId(long switchId) { |
| 221 | return getOpenflowDomainId(switchId, true); |
| 222 | } |
| 223 | |
| 224 | public long getOpenflowDomainId(long switchId, boolean tunnelEnabled) { |
| 225 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 226 | return ti.getOpenflowDomainId(switchId); |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public long getL2DomainId(long switchId) { |
| 231 | return getL2DomainId(switchId, true); |
| 232 | } |
| 233 | |
| 234 | @Override |
| 235 | public long getL2DomainId(long switchId, boolean tunnelEnabled) { |
| 236 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 237 | return ti.getL2DomainId(switchId); |
| 238 | } |
| 239 | |
| 240 | @Override |
| 241 | public boolean inSameOpenflowDomain(long switch1, long switch2) { |
| 242 | return inSameOpenflowDomain(switch1, switch2, true); |
| 243 | } |
| 244 | |
| 245 | @Override |
| 246 | public boolean inSameOpenflowDomain(long switch1, long switch2, |
| 247 | boolean tunnelEnabled) { |
| 248 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 249 | return ti.inSameOpenflowDomain(switch1, switch2); |
| 250 | } |
| 251 | |
| 252 | @Override |
| 253 | public boolean isAllowed(long sw, short portId) { |
| 254 | return isAllowed(sw, portId, true); |
| 255 | } |
| 256 | |
| 257 | @Override |
| 258 | public boolean isAllowed(long sw, short portId, boolean tunnelEnabled) { |
| 259 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 260 | return ti.isAllowed(sw, portId); |
| 261 | } |
| 262 | |
| 263 | //////////////////////////////////////////////////////////////////////// |
| 264 | //////////////////////////////////////////////////////////////////////// |
| 265 | @Override |
| 266 | public boolean isIncomingBroadcastAllowed(long sw, short portId) { |
| 267 | return isIncomingBroadcastAllowed(sw, portId, true); |
| 268 | } |
| 269 | |
| 270 | public boolean isIncomingBroadcastAllowed(long sw, short portId, |
| 271 | boolean tunnelEnabled) { |
| 272 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 273 | return ti.isIncomingBroadcastAllowedOnSwitchPort(sw, portId); |
| 274 | } |
| 275 | |
| 276 | //////////////////////////////////////////////////////////////////////// |
| 277 | //////////////////////////////////////////////////////////////////////// |
| 278 | /** Get all the ports connected to the switch */ |
| 279 | @Override |
| 280 | public Set<Short> getPortsWithLinks(long sw) { |
| 281 | return getPortsWithLinks(sw, true); |
| 282 | } |
| 283 | |
| 284 | /** Get all the ports connected to the switch */ |
| 285 | @Override |
| 286 | public Set<Short> getPortsWithLinks(long sw, boolean tunnelEnabled) { |
| 287 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 288 | return ti.getPortsWithLinks(sw); |
| 289 | } |
| 290 | |
| 291 | //////////////////////////////////////////////////////////////////////// |
| 292 | //////////////////////////////////////////////////////////////////////// |
| 293 | /** Get all the ports on the target switch (targetSw) on which a |
| 294 | * broadcast packet must be sent from a host whose attachment point |
| 295 | * is on switch port (src, srcPort). |
| 296 | */ |
| 297 | public Set<Short> getBroadcastPorts(long targetSw, |
| 298 | long src, short srcPort) { |
| 299 | return getBroadcastPorts(targetSw, src, srcPort, true); |
| 300 | } |
| 301 | |
| 302 | /** Get all the ports on the target switch (targetSw) on which a |
| 303 | * broadcast packet must be sent from a host whose attachment point |
| 304 | * is on switch port (src, srcPort). |
| 305 | */ |
| 306 | public Set<Short> getBroadcastPorts(long targetSw, |
| 307 | long src, short srcPort, |
| 308 | boolean tunnelEnabled) { |
| 309 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 310 | return ti.getBroadcastPorts(targetSw, src, srcPort); |
| 311 | } |
| 312 | |
| 313 | //////////////////////////////////////////////////////////////////////// |
| 314 | //////////////////////////////////////////////////////////////////////// |
| 315 | @Override |
| 316 | public NodePortTuple getOutgoingSwitchPort(long src, short srcPort, |
| 317 | long dst, short dstPort) { |
| 318 | // Use this function to redirect traffic if needed. |
| 319 | return getOutgoingSwitchPort(src, srcPort, dst, dstPort, true); |
| 320 | } |
| 321 | |
| 322 | @Override |
| 323 | public NodePortTuple getOutgoingSwitchPort(long src, short srcPort, |
| 324 | long dst, short dstPort, |
| 325 | boolean tunnelEnabled) { |
| 326 | // Use this function to redirect traffic if needed. |
| 327 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 328 | return ti.getOutgoingSwitchPort(src, srcPort, |
| 329 | dst, dstPort); |
| 330 | } |
| 331 | |
| 332 | //////////////////////////////////////////////////////////////////////// |
| 333 | //////////////////////////////////////////////////////////////////////// |
| 334 | @Override |
| 335 | public NodePortTuple getIncomingSwitchPort(long src, short srcPort, |
| 336 | long dst, short dstPort) { |
| 337 | return getIncomingSwitchPort(src, srcPort, dst, dstPort, true); |
| 338 | } |
| 339 | |
| 340 | @Override |
| 341 | public NodePortTuple getIncomingSwitchPort(long src, short srcPort, |
| 342 | long dst, short dstPort, |
| 343 | boolean tunnelEnabled) { |
| 344 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 345 | return ti.getIncomingSwitchPort(src, srcPort, |
| 346 | dst, dstPort); |
| 347 | } |
| 348 | |
| 349 | //////////////////////////////////////////////////////////////////////// |
| 350 | //////////////////////////////////////////////////////////////////////// |
| 351 | /** |
| 352 | * Checks if the two switchports belong to the same broadcast domain. |
| 353 | */ |
| 354 | @Override |
| 355 | public boolean isInSameBroadcastDomain(long s1, short p1, long s2, |
| 356 | short p2) { |
| 357 | return isInSameBroadcastDomain(s1, p1, s2, p2, true); |
| 358 | |
| 359 | } |
| 360 | |
| 361 | @Override |
| 362 | public boolean isInSameBroadcastDomain(long s1, short p1, |
| 363 | long s2, short p2, |
| 364 | boolean tunnelEnabled) { |
| 365 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 366 | return ti.inSameBroadcastDomain(s1, p1, s2, p2); |
| 367 | |
| 368 | } |
| 369 | |
| 370 | |
| 371 | /** |
| 372 | * Checks if the switchport is a broadcast domain port or not. |
| 373 | */ |
| 374 | @Override |
| 375 | public boolean isBroadcastDomainPort(long sw, short port) { |
| 376 | return isBroadcastDomainPort(sw, port, true); |
| 377 | } |
| 378 | |
| 379 | @Override |
| 380 | public boolean isBroadcastDomainPort(long sw, short port, |
| 381 | boolean tunnelEnabled) { |
| 382 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 383 | return ti.isBroadcastDomainPort(new NodePortTuple(sw, port)); |
| 384 | } |
| 385 | |
| 386 | |
| 387 | /** |
| 388 | * Checks if the new attachment point port is consistent with the |
| 389 | * old attachment point port. |
| 390 | */ |
| 391 | @Override |
| 392 | public boolean isConsistent(long oldSw, short oldPort, |
| 393 | long newSw, short newPort) { |
| 394 | return isConsistent(oldSw, oldPort, |
| 395 | newSw, newPort, true); |
| 396 | } |
| 397 | |
| 398 | @Override |
| 399 | public boolean isConsistent(long oldSw, short oldPort, |
| 400 | long newSw, short newPort, |
| 401 | boolean tunnelEnabled) { |
| 402 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 403 | return ti.isConsistent(oldSw, oldPort, newSw, newPort); |
| 404 | } |
| 405 | |
| 406 | //////////////////////////////////////////////////////////////////////// |
| 407 | //////////////////////////////////////////////////////////////////////// |
| 408 | /** |
| 409 | * Checks if the two switches are in the same Layer 2 domain. |
| 410 | */ |
| 411 | @Override |
| 412 | public boolean inSameL2Domain(long switch1, long switch2) { |
| 413 | return inSameL2Domain(switch1, switch2, true); |
| 414 | } |
| 415 | |
| 416 | @Override |
| 417 | public boolean inSameL2Domain(long switch1, long switch2, |
| 418 | boolean tunnelEnabled) { |
| 419 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 420 | return ti.inSameL2Domain(switch1, switch2); |
| 421 | } |
| 422 | |
| 423 | //////////////////////////////////////////////////////////////////////// |
| 424 | //////////////////////////////////////////////////////////////////////// |
| 425 | @Override |
| 426 | public NodePortTuple getAllowedOutgoingBroadcastPort(long src, |
| 427 | short srcPort, |
| 428 | long dst, |
| 429 | short dstPort) { |
| 430 | return getAllowedOutgoingBroadcastPort(src, srcPort, |
| 431 | dst, dstPort, true); |
| 432 | } |
| 433 | |
| 434 | @Override |
| 435 | public NodePortTuple getAllowedOutgoingBroadcastPort(long src, |
| 436 | short srcPort, |
| 437 | long dst, |
| 438 | short dstPort, |
| 439 | boolean tunnelEnabled){ |
| 440 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 441 | return ti.getAllowedOutgoingBroadcastPort(src, srcPort, |
| 442 | dst, dstPort); |
| 443 | } |
| 444 | //////////////////////////////////////////////////////////////////////// |
| 445 | //////////////////////////////////////////////////////////////////////// |
| 446 | @Override |
| 447 | public NodePortTuple |
| 448 | getAllowedIncomingBroadcastPort(long src, short srcPort) { |
| 449 | return getAllowedIncomingBroadcastPort(src,srcPort, true); |
| 450 | } |
| 451 | |
| 452 | @Override |
| 453 | public NodePortTuple |
| 454 | getAllowedIncomingBroadcastPort(long src, short srcPort, |
| 455 | boolean tunnelEnabled) { |
| 456 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 457 | return ti.getAllowedIncomingBroadcastPort(src,srcPort); |
| 458 | } |
| 459 | |
| 460 | @Override |
| 461 | public Set<NodePortTuple> getBroadcastDomainPorts() { |
| 462 | return portBroadcastDomainLinks.keySet(); |
| 463 | } |
| 464 | |
| 465 | @Override |
| 466 | public Set<NodePortTuple> getTunnelPorts() { |
| 467 | return tunnelLinks.keySet(); |
| 468 | } |
| 469 | |
| 470 | @Override |
| 471 | public Set<NodePortTuple> getBlockedPorts() { |
| 472 | Set<NodePortTuple> bp; |
| 473 | Set<NodePortTuple> blockedPorts = |
| 474 | new HashSet<NodePortTuple>(); |
| 475 | |
| 476 | // As we might have two topologies, simply get the union of |
| 477 | // both of them and send it. |
| 478 | bp = getCurrentInstance(true).getBlockedPorts(); |
| 479 | if (bp != null) |
| 480 | blockedPorts.addAll(bp); |
| 481 | |
| 482 | bp = getCurrentInstance(false).getBlockedPorts(); |
| 483 | if (bp != null) |
| 484 | blockedPorts.addAll(bp); |
| 485 | |
| 486 | return blockedPorts; |
| 487 | } |
| 488 | |
| 489 | @Override |
| 490 | public List<LDUpdate> getLastLinkUpdates() { |
| 491 | return appliedUpdates; |
| 492 | } |
| 493 | //////////////////////////////////////////////////////////////////////// |
| 494 | //////////////////////////////////////////////////////////////////////// |
| 495 | |
| 496 | // *************** |
| 497 | // IRoutingService |
| 498 | // *************** |
| 499 | |
| 500 | @Override |
| 501 | public Route getRoute(long src, long dst) { |
| 502 | return getRoute(src, dst, true); |
| 503 | } |
| 504 | |
| 505 | @Override |
| 506 | public Route getRoute(long src, long dst, boolean tunnelEnabled) { |
| 507 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 508 | return ti.getRoute(src, dst); |
| 509 | } |
| 510 | |
| 511 | @Override |
| 512 | public Route getRoute(long src, short srcPort, long dst, short dstPort) { |
| 513 | return getRoute(src, srcPort, dst, dstPort, true); |
| 514 | } |
| 515 | |
| 516 | @Override |
| 517 | public Route getRoute(long src, short srcPort, long dst, short dstPort, |
| 518 | boolean tunnelEnabled) { |
| 519 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 520 | return ti.getRoute(src, srcPort, dst, dstPort); |
| 521 | } |
| 522 | |
| 523 | @Override |
| 524 | public boolean routeExists(long src, long dst) { |
| 525 | return routeExists(src, dst, true); |
| 526 | } |
| 527 | |
| 528 | @Override |
| 529 | public boolean routeExists(long src, long dst, boolean tunnelEnabled) { |
| 530 | TopologyInstance ti = getCurrentInstance(tunnelEnabled); |
| 531 | return ti.routeExists(src, dst); |
| 532 | } |
| 533 | |
| 534 | |
| 535 | // ****************** |
| 536 | // IOFMessageListener |
| 537 | // ****************** |
| 538 | |
| 539 | @Override |
| 540 | public String getName() { |
| 541 | return "topology"; |
| 542 | } |
| 543 | |
| 544 | @Override |
| 545 | public boolean isCallbackOrderingPrereq(OFType type, String name) { |
| 546 | return "linkdiscovery".equals(name); |
| 547 | } |
| 548 | |
| 549 | @Override |
| 550 | public boolean isCallbackOrderingPostreq(OFType type, String name) { |
| 551 | return false; |
| 552 | } |
| 553 | |
| 554 | @Override |
| 555 | public Command receive(IOFSwitch sw, OFMessage msg, |
| 556 | FloodlightContext cntx) { |
| 557 | switch (msg.getType()) { |
| 558 | case PACKET_IN: |
| 559 | return this.processPacketInMessage(sw, |
| 560 | (OFPacketIn) msg, cntx); |
| 561 | default: |
| 562 | break; |
| 563 | } |
| 564 | |
| 565 | return Command.CONTINUE; |
| 566 | } |
| 567 | |
| 568 | // *************** |
| 569 | // IHAListener |
| 570 | // *************** |
| 571 | |
| 572 | @Override |
| 573 | public void roleChanged(Role oldRole, Role newRole) { |
| 574 | switch(newRole) { |
| 575 | case MASTER: |
| 576 | if (oldRole == Role.SLAVE) { |
| 577 | log.debug("Re-computing topology due " + |
| 578 | "to HA change from SLAVE->MASTER"); |
| 579 | newInstanceTask.reschedule(1, TimeUnit.MILLISECONDS); |
| 580 | } |
| 581 | break; |
| 582 | case SLAVE: |
| 583 | log.debug("Clearing topology due to " + |
| 584 | "HA change to SLAVE"); |
| 585 | clearCurrentTopology(); |
| 586 | break; |
| 587 | default: |
| 588 | break; |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | @Override |
| 593 | public void controllerNodeIPsChanged( |
| 594 | Map<String, String> curControllerNodeIPs, |
| 595 | Map<String, String> addedControllerNodeIPs, |
| 596 | Map<String, String> removedControllerNodeIPs) { |
| 597 | // no-op |
| 598 | } |
| 599 | |
| 600 | // ***************** |
| 601 | // IFloodlightModule |
| 602 | // ***************** |
| 603 | |
| 604 | @Override |
| 605 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 606 | Collection<Class<? extends IFloodlightService>> l = |
| 607 | new ArrayList<Class<? extends IFloodlightService>>(); |
| 608 | l.add(ITopologyService.class); |
| 609 | l.add(IRoutingService.class); |
| 610 | return l; |
| 611 | } |
| 612 | |
| 613 | @Override |
| 614 | public Map<Class<? extends IFloodlightService>, IFloodlightService> |
| 615 | getServiceImpls() { |
| 616 | Map<Class<? extends IFloodlightService>, |
| 617 | IFloodlightService> m = |
| 618 | new HashMap<Class<? extends IFloodlightService>, |
| 619 | IFloodlightService>(); |
| 620 | // We are the class that implements the service |
| 621 | m.put(ITopologyService.class, this); |
| 622 | m.put(IRoutingService.class, this); |
| 623 | return m; |
| 624 | } |
| 625 | |
| 626 | @Override |
| 627 | public Collection<Class<? extends IFloodlightService>> |
| 628 | getModuleDependencies() { |
| 629 | Collection<Class<? extends IFloodlightService>> l = |
| 630 | new ArrayList<Class<? extends IFloodlightService>>(); |
| 631 | l.add(ILinkDiscoveryService.class); |
| 632 | l.add(IThreadPoolService.class); |
| 633 | l.add(IFloodlightProviderService.class); |
| 634 | l.add(ICounterStoreService.class); |
| 635 | l.add(IRestApiService.class); |
| 636 | return l; |
| 637 | } |
| 638 | |
| 639 | @Override |
| 640 | public void init(FloodlightModuleContext context) |
| 641 | throws FloodlightModuleException { |
| 642 | linkDiscovery = context.getServiceImpl(ILinkDiscoveryService.class); |
| 643 | threadPool = context.getServiceImpl(IThreadPoolService.class); |
| 644 | floodlightProvider = |
| 645 | context.getServiceImpl(IFloodlightProviderService.class); |
| 646 | restApi = context.getServiceImpl(IRestApiService.class); |
| 647 | |
| 648 | switchPorts = new HashMap<Long,Set<Short>>(); |
| 649 | switchPortLinks = new HashMap<NodePortTuple, Set<Link>>(); |
| 650 | directLinks = new HashMap<NodePortTuple, Set<Link>>(); |
| 651 | portBroadcastDomainLinks = new HashMap<NodePortTuple, Set<Link>>(); |
| 652 | tunnelLinks = new HashMap<NodePortTuple, Set<Link>>(); |
| 653 | topologyAware = new ArrayList<ITopologyListener>(); |
| 654 | ldUpdates = new LinkedBlockingQueue<LDUpdate>(); |
| 655 | appliedUpdates = new ArrayList<LDUpdate>(); |
| 656 | clearCurrentTopology(); |
| 657 | } |
| 658 | |
| 659 | @Override |
| 660 | public void startUp(FloodlightModuleContext context) { |
| 661 | ScheduledExecutorService ses = threadPool.getScheduledExecutor(); |
| 662 | newInstanceTask = new SingletonTask(ses, new UpdateTopologyWorker()); |
| 663 | linkDiscovery.addListener(this); |
| 664 | floodlightProvider.addOFMessageListener(OFType.PACKET_IN, this); |
| 665 | floodlightProvider.addHAListener(this); |
| 666 | addRestletRoutable(); |
| 667 | } |
| 668 | |
| 669 | protected void addRestletRoutable() { |
| 670 | restApi.addRestletRoutable(new TopologyWebRoutable()); |
| 671 | } |
| 672 | |
| 673 | // **************** |
| 674 | // Internal methods |
| 675 | // **************** |
| 676 | /** |
| 677 | * If the packet-in switch port is disabled for all data traffic, then |
| 678 | * the packet will be dropped. Otherwise, the packet will follow the |
| 679 | * normal processing chain. |
| 680 | * @param sw |
| 681 | * @param pi |
| 682 | * @param cntx |
| 683 | * @return |
| 684 | */ |
| 685 | protected Command dropFilter(long sw, OFPacketIn pi, |
| 686 | FloodlightContext cntx) { |
| 687 | Command result = Command.CONTINUE; |
| 688 | short port = pi.getInPort(); |
| 689 | |
| 690 | // If the input port is not allowed for data traffic, drop everything. |
| 691 | // BDDP packets will not reach this stage. |
| 692 | if (isAllowed(sw, port) == false) { |
| 693 | if (log.isTraceEnabled()) { |
| 694 | log.trace("Ignoring packet because of topology " + |
| 695 | "restriction on switch={}, port={}", sw, port); |
| 696 | result = Command.STOP; |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | // if sufficient information is available, then drop broadcast |
| 701 | // packets here as well. |
| 702 | return result; |
| 703 | } |
| 704 | |
| 705 | /** |
| 706 | * TODO This method must be moved to a layer below forwarding |
| 707 | * so that anyone can use it. |
| 708 | * @param packetData |
| 709 | * @param sw |
| 710 | * @param ports |
| 711 | * @param cntx |
| 712 | */ |
| 713 | @LogMessageDoc(level="ERROR", |
| 714 | message="Failed to clear all flows on switch {switch}", |
| 715 | explanation="An I/O error occured while trying send " + |
| 716 | "topology discovery packet", |
| 717 | recommendation=LogMessageDoc.CHECK_SWITCH) |
| 718 | public void doMultiActionPacketOut(byte[] packetData, IOFSwitch sw, |
| 719 | Set<Short> ports, |
| 720 | FloodlightContext cntx) { |
| 721 | |
| 722 | if (ports == null) return; |
| 723 | if (packetData == null || packetData.length <= 0) return; |
| 724 | |
| 725 | OFPacketOut po = |
| 726 | (OFPacketOut) floodlightProvider.getOFMessageFactory(). |
| 727 | getMessage(OFType.PACKET_OUT); |
| 728 | |
| 729 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 730 | for(short p: ports) { |
| 731 | actions.add(new OFActionOutput(p, (short) 0)); |
| 732 | } |
| 733 | |
| 734 | // set actions |
| 735 | po.setActions(actions); |
| 736 | // set action length |
| 737 | po.setActionsLength((short) (OFActionOutput.MINIMUM_LENGTH * |
| 738 | ports.size())); |
| 739 | // set buffer-id to BUFFER_ID_NONE |
| 740 | po.setBufferId(OFPacketOut.BUFFER_ID_NONE); |
| 741 | // set in-port to OFPP_NONE |
| 742 | po.setInPort(OFPort.OFPP_NONE.getValue()); |
| 743 | |
| 744 | // set packet data |
| 745 | po.setPacketData(packetData); |
| 746 | |
| 747 | // compute and set packet length. |
| 748 | short poLength = (short)(OFPacketOut.MINIMUM_LENGTH + |
| 749 | po.getActionsLength() + |
| 750 | packetData.length); |
| 751 | |
| 752 | po.setLength(poLength); |
| 753 | |
| 754 | try { |
| 755 | //counterStore.updatePktOutFMCounterStore(sw, po); |
| 756 | if (log.isTraceEnabled()) { |
| 757 | log.trace("write broadcast packet on switch-id={} " + |
| 758 | "interaces={} packet-data={} packet-out={}", |
| 759 | new Object[] {sw.getId(), ports, packetData, po}); |
| 760 | } |
| 761 | sw.write(po, cntx); |
| 762 | |
| 763 | } catch (IOException e) { |
| 764 | log.error("Failure writing packet out", e); |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | |
| 769 | /** |
| 770 | * The BDDP packets are forwarded out of all the ports out of an |
| 771 | * openflowdomain. Get all the switches in the same openflow |
| 772 | * domain as the sw (disabling tunnels). Then get all the |
| 773 | * external switch ports and send these packets out. |
| 774 | * @param sw |
| 775 | * @param pi |
| 776 | * @param cntx |
| 777 | */ |
| 778 | protected void doFloodBDDP(long pinSwitch, OFPacketIn pi, |
| 779 | FloodlightContext cntx) { |
| 780 | |
| 781 | TopologyInstance ti = getCurrentInstance(false); |
| 782 | |
| 783 | Set<Long> switches = ti.getSwitchesInOpenflowDomain(pinSwitch); |
| 784 | |
| 785 | if (switches == null) |
| 786 | { |
| 787 | // indicates no links are connected to the switches |
| 788 | switches = new HashSet<Long>(); |
| 789 | switches.add(pinSwitch); |
| 790 | } |
| 791 | |
| 792 | for(long sid: switches) { |
| 793 | IOFSwitch sw = floodlightProvider.getSwitches().get(sid); |
| 794 | if (sw == null) continue; |
| 795 | Collection<Short> enabledPorts = sw.getEnabledPortNumbers(); |
| 796 | if (enabledPorts == null) |
| 797 | continue; |
| 798 | Set<Short> ports = new HashSet<Short>(); |
| 799 | ports.addAll(enabledPorts); |
| 800 | |
| 801 | // all the ports known to topology // without tunnels. |
| 802 | // out of these, we need to choose only those that are |
| 803 | // broadcast port, otherwise, we should eliminate. |
| 804 | Set<Short> portsKnownToTopo = ti.getPortsWithLinks(sid); |
| 805 | |
| 806 | if (portsKnownToTopo != null) { |
| 807 | for(short p: portsKnownToTopo) { |
| 808 | NodePortTuple npt = |
| 809 | new NodePortTuple(sid, p); |
| 810 | if (ti.isBroadcastDomainPort(npt) == false) { |
| 811 | ports.remove(p); |
| 812 | } |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | // remove the incoming switch port |
| 817 | if (pinSwitch == sid) { |
| 818 | ports.remove(pi.getInPort()); |
| 819 | } |
| 820 | |
| 821 | // we have all the switch ports to which we need to broadcast. |
| 822 | doMultiActionPacketOut(pi.getPacketData(), sw, ports, cntx); |
| 823 | } |
| 824 | |
| 825 | } |
| 826 | |
| 827 | protected Command processPacketInMessage(IOFSwitch sw, OFPacketIn pi, |
| 828 | FloodlightContext cntx) { |
| 829 | |
| 830 | // get the packet-in switch. |
| 831 | Ethernet eth = |
| 832 | IFloodlightProviderService.bcStore. |
| 833 | get(cntx,IFloodlightProviderService.CONTEXT_PI_PAYLOAD); |
| 834 | |
| 835 | if (eth.getEtherType() == Ethernet.TYPE_BSN) { |
| 836 | BSN bsn = (BSN) eth.getPayload(); |
| 837 | if (bsn == null) return Command.STOP; |
| 838 | if (bsn.getPayload() == null) return Command.STOP; |
| 839 | |
| 840 | // It could be a packet other than BSN LLDP, therefore |
| 841 | // continue with the regular processing. |
| 842 | if (bsn.getPayload() instanceof LLDP == false) |
| 843 | return Command.CONTINUE; |
| 844 | |
| 845 | doFloodBDDP(sw.getId(), pi, cntx); |
| 846 | } else { |
| 847 | return dropFilter(sw.getId(), pi, cntx); |
| 848 | } |
| 849 | return Command.STOP; |
| 850 | } |
| 851 | |
| 852 | |
| 853 | /** |
| 854 | * Updates concerning switch disconnect and port down are not processed. |
| 855 | * LinkDiscoveryManager is expected to process those messages and send |
| 856 | * multiple link removed messages. However, all the updates from |
| 857 | * LinkDiscoveryManager would be propagated to the listeners of topology. |
| 858 | */ |
| 859 | @LogMessageDoc(level="ERROR", |
| 860 | message="Error reading link discovery update.", |
| 861 | explanation="Unable to process link discovery update", |
| 862 | recommendation=LogMessageDoc.REPORT_CONTROLLER_BUG) |
| 863 | public void applyUpdates() { |
| 864 | appliedUpdates.clear(); |
| 865 | LDUpdate update = null; |
| 866 | while (ldUpdates.peek() != null) { |
| 867 | try { |
| 868 | update = ldUpdates.take(); |
| 869 | } catch (Exception e) { |
| 870 | log.error("Error reading link discovery update.", e); |
| 871 | } |
| 872 | if (log.isTraceEnabled()) { |
| 873 | log.trace("Applying update: {}", update); |
| 874 | } |
Pankaj Berde | 27c3a95 | 2013-06-10 21:26:25 -0700 | [diff] [blame] | 875 | if (update.getOperation() == UpdateOperation.LINK_UPDATED || |
| 876 | update.getOperation() == UpdateOperation.LINK_ADDED ) { |
Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 877 | addOrUpdateLink(update.getSrc(), update.getSrcPort(), |
| 878 | update.getDst(), update.getDstPort(), |
| 879 | update.getType()); |
| 880 | } else if (update.getOperation() == UpdateOperation.LINK_REMOVED){ |
| 881 | removeLink(update.getSrc(), update.getSrcPort(), |
| 882 | update.getDst(), update.getDstPort()); |
| 883 | } |
| 884 | // Add to the list of applied updates. |
| 885 | appliedUpdates.add(update); |
| 886 | } |
| 887 | } |
| 888 | |
| 889 | /** |
| 890 | * This function computes a new topology. |
| 891 | */ |
| 892 | /** |
| 893 | * This function computes a new topology instance. |
| 894 | * It ignores links connected to all broadcast domain ports |
| 895 | * and tunnel ports. The method returns if a new instance of |
| 896 | * topology was created or not. |
| 897 | */ |
| 898 | protected boolean createNewInstance() { |
| 899 | Set<NodePortTuple> blockedPorts = new HashSet<NodePortTuple>(); |
| 900 | |
| 901 | if (!linksUpdated) return false; |
| 902 | |
| 903 | Map<NodePortTuple, Set<Link>> openflowLinks; |
| 904 | openflowLinks = |
| 905 | new HashMap<NodePortTuple, Set<Link>>(switchPortLinks); |
| 906 | |
| 907 | // Remove all tunnel links. |
| 908 | for(NodePortTuple npt: tunnelLinks.keySet()) { |
| 909 | if (openflowLinks.get(npt) != null) |
| 910 | openflowLinks.remove(npt); |
| 911 | } |
| 912 | |
| 913 | // Remove all broadcast domain links. |
| 914 | for(NodePortTuple npt: portBroadcastDomainLinks.keySet()) { |
| 915 | if (openflowLinks.get(npt) != null) |
| 916 | openflowLinks.remove(npt); |
| 917 | } |
| 918 | |
| 919 | TopologyInstance nt = new TopologyInstance(switchPorts, |
| 920 | blockedPorts, |
| 921 | openflowLinks, |
| 922 | portBroadcastDomainLinks.keySet(), |
| 923 | tunnelLinks.keySet()); |
| 924 | nt.compute(); |
| 925 | // We set the instances with and without tunnels to be identical. |
| 926 | // If needed, we may compute them differently. |
| 927 | currentInstance = nt; |
| 928 | currentInstanceWithoutTunnels = nt; |
| 929 | return true; |
| 930 | } |
| 931 | |
| 932 | |
| 933 | public void informListeners() { |
| 934 | for(int i=0; i<topologyAware.size(); ++i) { |
| 935 | ITopologyListener listener = topologyAware.get(i); |
| 936 | listener.topologyChanged(); |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | public void addSwitch(long sid) { |
| 941 | if (switchPorts.containsKey(sid) == false) { |
| 942 | switchPorts.put(sid, new HashSet<Short>()); |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | private void addPortToSwitch(long s, short p) { |
| 947 | addSwitch(s); |
| 948 | switchPorts.get(s).add(p); |
| 949 | } |
| 950 | |
| 951 | public boolean removeSwitchPort(long sw, short port) { |
| 952 | |
| 953 | Set<Link> linksToRemove = new HashSet<Link>(); |
| 954 | NodePortTuple npt = new NodePortTuple(sw, port); |
| 955 | if (switchPortLinks.containsKey(npt) == false) return false; |
| 956 | |
| 957 | linksToRemove.addAll(switchPortLinks.get(npt)); |
| 958 | for(Link link: linksToRemove) { |
| 959 | removeLink(link); |
| 960 | } |
| 961 | return true; |
| 962 | } |
| 963 | |
| 964 | public boolean removeSwitch(long sid) { |
| 965 | // Delete all the links in the switch, switch and all |
| 966 | // associated data should be deleted. |
| 967 | if (switchPorts.containsKey(sid) == false) return false; |
| 968 | |
| 969 | Set<Link> linksToRemove = new HashSet<Link>(); |
| 970 | for(Short p: switchPorts.get(sid)) { |
| 971 | NodePortTuple n1 = new NodePortTuple(sid, p); |
| 972 | linksToRemove.addAll(switchPortLinks.get(n1)); |
| 973 | } |
| 974 | |
| 975 | if (linksToRemove.isEmpty()) return false; |
| 976 | |
| 977 | for(Link link: linksToRemove) { |
| 978 | removeLink(link); |
| 979 | } |
| 980 | return true; |
| 981 | } |
| 982 | |
| 983 | /** |
| 984 | * Add the given link to the data structure. Returns true if a link was |
| 985 | * added. |
| 986 | * @param s |
| 987 | * @param l |
| 988 | * @return |
| 989 | */ |
| 990 | private boolean addLinkToStructure(Map<NodePortTuple, |
| 991 | Set<Link>> s, Link l) { |
| 992 | boolean result1 = false, result2 = false; |
| 993 | |
| 994 | NodePortTuple n1 = new NodePortTuple(l.getSrc(), l.getSrcPort()); |
| 995 | NodePortTuple n2 = new NodePortTuple(l.getDst(), l.getDstPort()); |
| 996 | |
| 997 | if (s.get(n1) == null) { |
| 998 | s.put(n1, new HashSet<Link>()); |
| 999 | } |
| 1000 | if (s.get(n2) == null) { |
| 1001 | s.put(n2, new HashSet<Link>()); |
| 1002 | } |
| 1003 | result1 = s.get(n1).add(l); |
| 1004 | result2 = s.get(n2).add(l); |
| 1005 | |
| 1006 | return (result1 || result2); |
| 1007 | } |
| 1008 | |
| 1009 | /** |
| 1010 | * Delete the given link from the data strucure. Returns true if the |
| 1011 | * link was deleted. |
| 1012 | * @param s |
| 1013 | * @param l |
| 1014 | * @return |
| 1015 | */ |
| 1016 | private boolean removeLinkFromStructure(Map<NodePortTuple, |
| 1017 | Set<Link>> s, Link l) { |
| 1018 | |
| 1019 | boolean result1 = false, result2 = false; |
| 1020 | NodePortTuple n1 = new NodePortTuple(l.getSrc(), l.getSrcPort()); |
| 1021 | NodePortTuple n2 = new NodePortTuple(l.getDst(), l.getDstPort()); |
| 1022 | |
| 1023 | if (s.get(n1) != null) { |
| 1024 | result1 = s.get(n1).remove(l); |
| 1025 | if (s.get(n1).isEmpty()) s.remove(n1); |
| 1026 | } |
| 1027 | if (s.get(n2) != null) { |
| 1028 | result2 = s.get(n2).remove(l); |
| 1029 | if (s.get(n2).isEmpty()) s.remove(n2); |
| 1030 | } |
| 1031 | return result1 || result2; |
| 1032 | } |
| 1033 | |
| 1034 | public void addOrUpdateLink(long srcId, short srcPort, long dstId, |
| 1035 | short dstPort, LinkType type) { |
| 1036 | boolean flag1 = false, flag2 = false; |
| 1037 | |
| 1038 | Link link = new Link(srcId, srcPort, dstId, dstPort); |
| 1039 | addPortToSwitch(srcId, srcPort); |
| 1040 | addPortToSwitch(dstId, dstPort); |
| 1041 | |
| 1042 | addLinkToStructure(switchPortLinks, link); |
| 1043 | |
| 1044 | if (type.equals(LinkType.MULTIHOP_LINK)) { |
| 1045 | addLinkToStructure(portBroadcastDomainLinks, link); |
| 1046 | flag1 = removeLinkFromStructure(tunnelLinks, link); |
| 1047 | flag2 = removeLinkFromStructure(directLinks, link); |
| 1048 | dtLinksUpdated = flag1 || flag2; |
| 1049 | } else if (type.equals(LinkType.TUNNEL)) { |
| 1050 | addLinkToStructure(tunnelLinks, link); |
| 1051 | removeLinkFromStructure(portBroadcastDomainLinks, link); |
| 1052 | removeLinkFromStructure(directLinks, link); |
| 1053 | dtLinksUpdated = true; |
| 1054 | } else if (type.equals(LinkType.DIRECT_LINK)) { |
| 1055 | addLinkToStructure(directLinks, link); |
| 1056 | removeLinkFromStructure(tunnelLinks, link); |
| 1057 | removeLinkFromStructure(portBroadcastDomainLinks, link); |
| 1058 | dtLinksUpdated = true; |
| 1059 | } |
| 1060 | linksUpdated = true; |
| 1061 | } |
| 1062 | |
| 1063 | public void removeLink(Link link) { |
| 1064 | boolean flag1 = false, flag2 = false; |
| 1065 | |
| 1066 | flag1 = removeLinkFromStructure(directLinks, link); |
| 1067 | flag2 = removeLinkFromStructure(tunnelLinks, link); |
| 1068 | |
| 1069 | linksUpdated = true; |
| 1070 | dtLinksUpdated = flag1 || flag2; |
| 1071 | |
| 1072 | removeLinkFromStructure(portBroadcastDomainLinks, link); |
| 1073 | removeLinkFromStructure(switchPortLinks, link); |
| 1074 | |
| 1075 | NodePortTuple srcNpt = |
| 1076 | new NodePortTuple(link.getSrc(), link.getSrcPort()); |
| 1077 | NodePortTuple dstNpt = |
| 1078 | new NodePortTuple(link.getDst(), link.getDstPort()); |
| 1079 | |
| 1080 | // Remove switch ports if there are no links through those switch ports |
| 1081 | if (switchPortLinks.get(srcNpt) == null) { |
| 1082 | if (switchPorts.get(srcNpt.getNodeId()) != null) |
| 1083 | switchPorts.get(srcNpt.getNodeId()).remove(srcNpt.getPortId()); |
| 1084 | } |
| 1085 | if (switchPortLinks.get(dstNpt) == null) { |
| 1086 | if (switchPorts.get(dstNpt.getNodeId()) != null) |
| 1087 | switchPorts.get(dstNpt.getNodeId()).remove(dstNpt.getPortId()); |
| 1088 | } |
| 1089 | |
| 1090 | // Remove the node if no ports are present |
| 1091 | if (switchPorts.get(srcNpt.getNodeId())!=null && |
| 1092 | switchPorts.get(srcNpt.getNodeId()).isEmpty()) { |
| 1093 | switchPorts.remove(srcNpt.getNodeId()); |
| 1094 | } |
| 1095 | if (switchPorts.get(dstNpt.getNodeId())!=null && |
| 1096 | switchPorts.get(dstNpt.getNodeId()).isEmpty()) { |
| 1097 | switchPorts.remove(dstNpt.getNodeId()); |
| 1098 | } |
| 1099 | } |
| 1100 | |
| 1101 | public void removeLink(long srcId, short srcPort, |
| 1102 | long dstId, short dstPort) { |
| 1103 | Link link = new Link(srcId, srcPort, dstId, dstPort); |
| 1104 | removeLink(link); |
| 1105 | } |
| 1106 | |
| 1107 | public void clear() { |
| 1108 | switchPorts.clear(); |
| 1109 | switchPortLinks.clear(); |
| 1110 | portBroadcastDomainLinks.clear(); |
| 1111 | tunnelLinks.clear(); |
| 1112 | directLinks.clear(); |
| 1113 | appliedUpdates.clear(); |
| 1114 | } |
| 1115 | |
| 1116 | /** |
| 1117 | * Clears the current topology. Note that this does NOT |
| 1118 | * send out updates. |
| 1119 | */ |
| 1120 | public void clearCurrentTopology() { |
| 1121 | this.clear(); |
| 1122 | linksUpdated = true; |
| 1123 | dtLinksUpdated = true; |
| 1124 | createNewInstance(); |
| 1125 | lastUpdateTime = new Date(); |
| 1126 | } |
| 1127 | |
| 1128 | /** |
| 1129 | * Getters. No Setters. |
| 1130 | */ |
| 1131 | public Map<Long, Set<Short>> getSwitchPorts() { |
| 1132 | return switchPorts; |
| 1133 | } |
| 1134 | |
| 1135 | public Map<NodePortTuple, Set<Link>> getSwitchPortLinks() { |
| 1136 | return switchPortLinks; |
| 1137 | } |
| 1138 | |
| 1139 | public Map<NodePortTuple, Set<Link>> getPortBroadcastDomainLinks() { |
| 1140 | return portBroadcastDomainLinks; |
| 1141 | } |
| 1142 | |
| 1143 | public TopologyInstance getCurrentInstance(boolean tunnelEnabled) { |
| 1144 | if (tunnelEnabled) |
| 1145 | return currentInstance; |
| 1146 | else return this.currentInstanceWithoutTunnels; |
| 1147 | } |
| 1148 | |
| 1149 | public TopologyInstance getCurrentInstance() { |
| 1150 | return this.getCurrentInstance(true); |
| 1151 | } |
| 1152 | |
| 1153 | /** |
| 1154 | * Switch methods |
| 1155 | */ |
| 1156 | public Set<Short> getPorts(long sw) { |
| 1157 | Set<Short> ports = new HashSet<Short>(); |
| 1158 | IOFSwitch iofSwitch = floodlightProvider.getSwitches().get(sw); |
| 1159 | if (iofSwitch == null) return null; |
| 1160 | |
| 1161 | Collection<Short> ofpList = iofSwitch.getEnabledPortNumbers(); |
| 1162 | if (ofpList == null) return null; |
| 1163 | |
| 1164 | Set<Short> qPorts = linkDiscovery.getQuarantinedPorts(sw); |
| 1165 | if (qPorts != null) |
| 1166 | ofpList.removeAll(qPorts); |
| 1167 | |
| 1168 | ports.addAll(ofpList); |
| 1169 | return ports; |
| 1170 | } |
| 1171 | } |