Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present 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.pce.pceservice; |
| 17 | |
| 18 | import static com.google.common.base.Preconditions.checkNotNull; |
| 19 | |
| 20 | import java.util.Collection; |
| 21 | import java.util.Iterator; |
| 22 | import java.util.HashSet; |
| 23 | import java.util.List; |
| 24 | import java.util.LinkedList; |
| 25 | import java.util.Map; |
| 26 | import java.util.Set; |
| 27 | |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 28 | import org.onlab.packet.IpAddress; |
| 29 | import org.onlab.packet.IpPrefix; |
| 30 | import org.onlab.packet.MplsLabel; |
| 31 | import org.onlab.packet.TpPort; |
| 32 | import org.onosproject.core.ApplicationId; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 33 | import org.onosproject.incubator.net.resource.label.DefaultLabelResource; |
| 34 | import org.onosproject.incubator.net.resource.label.LabelResource; |
| 35 | import org.onosproject.incubator.net.resource.label.LabelResourceId; |
| 36 | import org.onosproject.incubator.net.resource.label.LabelResourceAdminService; |
| 37 | import org.onosproject.incubator.net.resource.label.LabelResourceService; |
| 38 | import org.onosproject.incubator.net.tunnel.DefaultLabelStack; |
| 39 | import org.onosproject.incubator.net.tunnel.LabelStack; |
| 40 | import org.onosproject.net.DeviceId; |
| 41 | import org.onosproject.pce.pcestore.api.PceStore; |
| 42 | import org.onosproject.net.Link; |
| 43 | import org.onosproject.net.Path; |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 44 | import org.onosproject.net.PortNumber; |
| 45 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 46 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 47 | import org.onosproject.net.flow.TrafficSelector; |
| 48 | import org.onosproject.net.flow.TrafficTreatment; |
| 49 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 50 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 51 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 52 | import org.onosproject.net.flowobjective.Objective; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 53 | import org.slf4j.Logger; |
| 54 | import org.slf4j.LoggerFactory; |
| 55 | |
| 56 | import com.google.common.collect.ArrayListMultimap; |
| 57 | import com.google.common.collect.Multimap; |
| 58 | |
| 59 | /** |
| 60 | * PCE SR-BE and SR-TE functionality. |
| 61 | * SR-BE: Each node (PCC) is allocated a node-SID (label) by the PCECC. The PCECC sends PCLabelUpd to |
| 62 | * update the label map of each node to all the nodes in the domain. |
| 63 | * SR-TE: apart from node-SID, Adj-SID is used where each adjacency is allocated an Adj-SID (label) by the PCECC. |
| 64 | * The PCECC sends PCLabelUpd to update the label map of each Adj to the corresponding nodes in the domain. |
| 65 | */ |
| 66 | public final class PceccSrTeBeHandler { |
| 67 | private static final Logger log = LoggerFactory.getLogger(PceccSrTeBeHandler.class); |
| 68 | |
| 69 | private static final String LABEL_RESOURCE_ADMIN_SERVICE_NULL = "Label Resource Admin Service cannot be null"; |
| 70 | private static final String LABEL_RESOURCE_SERVICE_NULL = "Label Resource Service cannot be null"; |
| 71 | private static final String PCE_STORE_NULL = "PCE Store cannot be null"; |
| 72 | private static final String DEVICE_SERVICE_NULL = "Device Service cannot be null"; |
| 73 | private static final String DEVICE_ID_NULL = "Device-Id cannot be null"; |
| 74 | private static final String LSR_ID_NULL = "LSR-Id cannot be null"; |
| 75 | private static final String DEVICE_ID_LSR_ID_MAP_NULL = "Device-Id and LSR-Id map cannot be null"; |
| 76 | private static final String LINK_NULL = "Link cannot be null"; |
| 77 | private static final String PATH_NULL = "Path cannot be null"; |
| 78 | private static final String LSR_ID = "lsrId"; |
| 79 | private static final int PREFIX_LENGTH = 32; |
| 80 | private static PceccSrTeBeHandler srTeHandlerInstance = null; |
| 81 | private LabelResourceAdminService labelRsrcAdminService; |
| 82 | private LabelResourceService labelRsrcService; |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 83 | private FlowObjectiveService flowObjectiveService; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 84 | private PceStore pceStore; |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 85 | private ApplicationId appId; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 86 | |
| 87 | /** |
| 88 | * Initializes default values. |
| 89 | */ |
| 90 | private PceccSrTeBeHandler() { |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Returns single instance of this class. |
| 95 | * |
| 96 | * @return this class single instance |
| 97 | */ |
| 98 | public static PceccSrTeBeHandler getInstance() { |
| 99 | if (srTeHandlerInstance == null) { |
| 100 | srTeHandlerInstance = new PceccSrTeBeHandler(); |
| 101 | } |
| 102 | return srTeHandlerInstance; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Initialization of label manager interfaces and pce store. |
| 107 | * |
| 108 | * @param labelRsrcAdminService label resource admin service |
| 109 | * @param labelRsrcService label resource service |
| 110 | * @param pceStore PCE label store |
| 111 | */ |
| 112 | public void initialize(LabelResourceAdminService labelRsrcAdminService, |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 113 | LabelResourceService labelRsrcService, |
| 114 | FlowObjectiveService flowObjectiveService, |
| 115 | ApplicationId appId, PceStore pceStore) { |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 116 | this.labelRsrcAdminService = labelRsrcAdminService; |
| 117 | this.labelRsrcService = labelRsrcService; |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 118 | this.flowObjectiveService = flowObjectiveService; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 119 | this.pceStore = pceStore; |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 120 | this.appId = appId; |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Reserves the global label pool. |
| 125 | * |
| 126 | * @param beginLabel minimum value of global label space |
| 127 | * @param endLabel maximum value of global label space |
| 128 | * @return success or failure |
| 129 | */ |
| 130 | public boolean reserveGlobalPool(long beginLabel, long endLabel) { |
| 131 | checkNotNull(labelRsrcAdminService, LABEL_RESOURCE_ADMIN_SERVICE_NULL); |
| 132 | return labelRsrcAdminService.createGlobalPool(LabelResourceId.labelResourceId(beginLabel), |
| 133 | LabelResourceId.labelResourceId(endLabel)); |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Allocates node label from global node label pool to specific device. |
| 138 | * Configure this device with labels and lsrid mapping of all other devices and vice versa. |
| 139 | * |
| 140 | * @param specificDeviceId node label needs to be allocated to specific device |
| 141 | * @param specificLsrId lsrid of specific device |
| 142 | * @param deviceIdLsrIdMap deviceid and lsrid mapping |
| 143 | * @return success or failure |
| 144 | */ |
| 145 | public boolean allocateNodeLabel(DeviceId specificDeviceId, String specificLsrId, |
| 146 | Map<DeviceId, String> deviceIdLsrIdMap) { |
| 147 | long applyNum = 1; // For each node only one node label |
| 148 | LabelResourceId specificLabelId = null; |
| 149 | |
| 150 | checkNotNull(specificDeviceId, DEVICE_ID_NULL); |
| 151 | checkNotNull(specificLsrId, LSR_ID_NULL); |
| 152 | checkNotNull(deviceIdLsrIdMap, DEVICE_ID_LSR_ID_MAP_NULL); |
| 153 | checkNotNull(labelRsrcService, LABEL_RESOURCE_SERVICE_NULL); |
| 154 | checkNotNull(pceStore, PCE_STORE_NULL); |
| 155 | |
| 156 | // The specificDeviceId is the new device and is not there in the deviceIdLsrIdMap. |
| 157 | // So, first generate its label and configure label and its lsr-id to it. |
| 158 | Collection<LabelResource> result = labelRsrcService.applyFromGlobalPool(applyNum); |
| 159 | if (result.size() > 0) { |
| 160 | // Only one element (label-id) to retrieve |
| 161 | Iterator<LabelResource> iterator = result.iterator(); |
| 162 | DefaultLabelResource defaultLabelResource = (DefaultLabelResource) iterator.next(); |
| 163 | specificLabelId = defaultLabelResource.labelResourceId(); |
| 164 | if (specificLabelId == null) { |
| 165 | log.error("Unable to retrieve global node label for a device id {}.", specificDeviceId.toString()); |
| 166 | return false; |
| 167 | } |
| 168 | } else { |
| 169 | log.error("Unable to allocate global node label for a device id {}.", specificDeviceId.toString()); |
| 170 | return false; |
| 171 | } |
| 172 | |
| 173 | pceStore.addGlobalNodeLabel(specificDeviceId, specificLabelId); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 174 | // Push its label information into specificDeviceId |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 175 | advertiseNodeLabelRule(specificDeviceId, specificLabelId, |
| 176 | IpPrefix.valueOf(IpAddress.valueOf(specificLsrId), PREFIX_LENGTH), |
| 177 | Objective.Operation.ADD, false); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 178 | |
| 179 | // Configure (node-label, lsr-id) mapping of each devices in list to specific device and vice versa. |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 180 | for (Map.Entry<DeviceId, String> element:deviceIdLsrIdMap.entrySet()) { |
| 181 | DeviceId otherDevId = element.getKey(); |
| 182 | String otherLsrId = element.getValue(); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 183 | if (otherLsrId == null) { |
| 184 | log.error("The lsr-id of device id {} is null.", otherDevId.toString()); |
| 185 | releaseNodeLabel(specificDeviceId, specificLsrId, deviceIdLsrIdMap); |
| 186 | return false; |
| 187 | } |
| 188 | |
| 189 | // Label for other device in list should be already allocated. |
| 190 | LabelResourceId otherLabelId = pceStore.getGlobalNodeLabel(otherDevId); |
| 191 | if (otherLabelId == null) { |
| 192 | log.error("Unable to find global node label in store for a device id {}.", otherDevId.toString()); |
| 193 | releaseNodeLabel(specificDeviceId, specificLsrId, deviceIdLsrIdMap); |
| 194 | return false; |
| 195 | } |
| 196 | |
| 197 | // Push to device |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 198 | // Push label information of specificDeviceId to otherDevId in list and vice versa. |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 199 | advertiseNodeLabelRule(otherDevId, specificLabelId, IpPrefix.valueOf(IpAddress.valueOf(specificLsrId), |
| 200 | PREFIX_LENGTH), Objective.Operation.ADD, false); |
| 201 | advertiseNodeLabelRule(specificDeviceId, otherLabelId, IpPrefix.valueOf(IpAddress.valueOf(otherLsrId), |
| 202 | PREFIX_LENGTH), Objective.Operation.ADD, false); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | return true; |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Releases assigned node label of specific device from global node label pool and pce store. |
| 210 | * and remove configured this node label from all other devices. |
| 211 | * |
| 212 | * @param specificDeviceId node label needs to be released for specific device |
| 213 | * @param specificLsrId lsrid of specific device |
| 214 | * @param deviceIdLsrIdMap deviceid and lsrid mapping |
| 215 | * @return success or failure |
| 216 | */ |
| 217 | public boolean releaseNodeLabel(DeviceId specificDeviceId, String specificLsrId, |
| 218 | Map<DeviceId, String> deviceIdLsrIdMap) { |
| 219 | checkNotNull(specificDeviceId, DEVICE_ID_NULL); |
| 220 | checkNotNull(specificLsrId, LSR_ID_NULL); |
| 221 | checkNotNull(deviceIdLsrIdMap, DEVICE_ID_LSR_ID_MAP_NULL); |
| 222 | checkNotNull(labelRsrcService, LABEL_RESOURCE_SERVICE_NULL); |
| 223 | checkNotNull(pceStore, PCE_STORE_NULL); |
| 224 | boolean retValue = true; |
| 225 | |
| 226 | // Release node label entry of this specific device from all other devices |
| 227 | // Retrieve node label of this specific device from store |
| 228 | LabelResourceId labelId = pceStore.getGlobalNodeLabel(specificDeviceId); |
| 229 | if (labelId == null) { |
| 230 | log.error("Unable to retrieve label of a device id {} from store.", specificDeviceId.toString()); |
| 231 | return false; |
| 232 | } |
| 233 | |
| 234 | // Go through all devices in the map and remove label entry |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 235 | for (Map.Entry<DeviceId, String> element:deviceIdLsrIdMap.entrySet()) { |
| 236 | DeviceId otherDevId = element.getKey(); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 237 | |
| 238 | // Remove this specific device label information from all other nodes except |
| 239 | // this specific node where connection already lost. |
| 240 | if (!specificDeviceId.equals(otherDevId)) { |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 241 | advertiseNodeLabelRule(otherDevId, labelId, IpPrefix.valueOf(IpAddress.valueOf(specificLsrId), |
| 242 | PREFIX_LENGTH), Objective.Operation.REMOVE, false); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 243 | } |
| 244 | } |
| 245 | |
| 246 | // Release from label manager |
| 247 | Set<LabelResourceId> release = new HashSet<>(); |
| 248 | release.add(labelId); |
| 249 | if (!labelRsrcService.releaseToGlobalPool(release)) { |
| 250 | log.error("Unable to release label id {} from label manager.", labelId.toString()); |
| 251 | retValue = false; |
| 252 | } |
| 253 | |
| 254 | // Remove from store |
| 255 | if (!pceStore.removeGlobalNodeLabel(specificDeviceId)) { |
| 256 | log.error("Unable to remove global node label id {} from store.", labelId.toString()); |
| 257 | retValue = false; |
| 258 | } |
| 259 | |
| 260 | return retValue; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Allocates adjacency label to a link from local resource pool by a specific device id. |
| 265 | * |
| 266 | * @param link between devices |
| 267 | * @return success or failure |
| 268 | */ |
| 269 | public boolean allocateAdjacencyLabel(Link link) { |
| 270 | long applyNum = 1; // Single label to each link. |
| 271 | DeviceId srcDeviceId = link.src().deviceId(); |
| 272 | Collection<LabelResource> labelList; |
| 273 | |
| 274 | checkNotNull(link, LINK_NULL); |
| 275 | checkNotNull(labelRsrcService, LABEL_RESOURCE_SERVICE_NULL); |
| 276 | checkNotNull(pceStore, PCE_STORE_NULL); |
| 277 | |
| 278 | // Allocate adjacency label to a link from label manager. |
| 279 | // Take label from source device pool to allocate. |
| 280 | labelList = labelRsrcService.applyFromDevicePool(srcDeviceId, applyNum); |
| 281 | if (labelList.size() <= 0) { |
| 282 | log.error("Unable to allocate label to a device id {}.", srcDeviceId.toString()); |
| 283 | return false; |
| 284 | } |
| 285 | |
| 286 | // Currently only one label to a device. So, no need to iterate through list |
| 287 | Iterator<LabelResource> iterator = labelList.iterator(); |
| 288 | DefaultLabelResource defaultLabelResource = (DefaultLabelResource) iterator.next(); |
| 289 | LabelResourceId labelId = defaultLabelResource.labelResourceId(); |
| 290 | if (labelId == null) { |
| 291 | log.error("Unable to allocate label to a device id {}.", srcDeviceId.toString()); |
| 292 | return false; |
| 293 | } |
| 294 | log.debug("Allocated adjacency label {} to a link {}.", labelId.toString(), |
| 295 | link.toString()); |
| 296 | |
| 297 | // Push adjacency label to device |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 298 | installAdjLabelRule(srcDeviceId, labelId, link.src().port(), link.dst().port(), Objective.Operation.ADD); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 299 | |
| 300 | // Save in store |
| 301 | pceStore.addAdjLabel(link, labelId); |
| 302 | return true; |
| 303 | } |
| 304 | |
| 305 | /** |
| 306 | * Releases unused adjacency labels from device pools. |
| 307 | * |
| 308 | * @param link between devices |
| 309 | * @return success or failure |
| 310 | */ |
| 311 | public boolean releaseAdjacencyLabel(Link link) { |
| 312 | checkNotNull(link, LINK_NULL); |
| 313 | checkNotNull(labelRsrcService, LABEL_RESOURCE_SERVICE_NULL); |
| 314 | checkNotNull(pceStore, PCE_STORE_NULL); |
| 315 | boolean retValue = true; |
| 316 | |
| 317 | // Retrieve link label from store |
| 318 | LabelResourceId labelId = pceStore.getAdjLabel(link); |
| 319 | if (labelId == null) { |
| 320 | log.error("Unabel to retrieve label for a link {} from store.", link.toString()); |
| 321 | return false; |
| 322 | } |
| 323 | |
| 324 | // Device |
| 325 | DeviceId srcDeviceId = link.src().deviceId(); |
| 326 | |
| 327 | // Release adjacency label from device |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 328 | installAdjLabelRule(srcDeviceId, labelId, link.src().port(), link.dst().port(), Objective.Operation.REMOVE); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 329 | |
| 330 | // Release link label from label manager |
| 331 | Multimap<DeviceId, LabelResource> release = ArrayListMultimap.create(); |
| 332 | DefaultLabelResource defaultLabelResource = new DefaultLabelResource(srcDeviceId, labelId); |
| 333 | release.put(srcDeviceId, defaultLabelResource); |
| 334 | if (!labelRsrcService.releaseToDevicePool(release)) { |
| 335 | log.error("Unable to release label id {} from label manager.", labelId.toString()); |
| 336 | retValue = false; |
| 337 | } |
| 338 | |
| 339 | // Remove adjacency label from store |
| 340 | if (!pceStore.removeAdjLabel(link)) { |
| 341 | log.error("Unable to remove adjacency label id {} from store.", labelId.toString()); |
| 342 | retValue = false; |
| 343 | } |
| 344 | return retValue; |
| 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Computes label stack for a path. |
| 349 | * |
| 350 | * @param path lsp path |
| 351 | * @return label stack |
| 352 | */ |
| 353 | public LabelStack computeLabelStack(Path path) { |
| 354 | checkNotNull(path, PATH_NULL); |
| 355 | // Label stack is linked list to make labels in order. |
| 356 | List<LabelResourceId> labelStack = new LinkedList<>(); |
| 357 | List<Link> linkList = path.links(); |
| 358 | if ((linkList != null) && (linkList.size() > 0)) { |
| 359 | // Path: [x] ---- [y] ---- [z] |
| 360 | // For other than last link, add only source[x] device label. |
| 361 | // For the last link, add both source[y] and destination[z] device labels. |
| 362 | // For all links add adjacency label |
| 363 | Link link = null; |
| 364 | LabelResourceId nodeLabelId = null; |
| 365 | LabelResourceId adjLabelId = null; |
| 366 | DeviceId deviceId = null; |
| 367 | for (Iterator<Link> iterator = linkList.iterator(); iterator.hasNext();) { |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 368 | link = iterator.next(); |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 369 | // Add source device label now |
| 370 | deviceId = link.src().deviceId(); |
| 371 | nodeLabelId = pceStore.getGlobalNodeLabel(deviceId); |
| 372 | if (nodeLabelId == null) { |
| 373 | log.error("Unable to find node label for a device id {} in store.", deviceId.toString()); |
| 374 | return null; |
| 375 | } |
| 376 | labelStack.add(nodeLabelId); |
| 377 | |
| 378 | // Add adjacency label for this link |
| 379 | adjLabelId = pceStore.getAdjLabel(link); |
| 380 | if (adjLabelId == null) { |
| 381 | log.error("Adjacency label id is null for a link {}.", link.toString()); |
| 382 | return null; |
| 383 | } |
| 384 | labelStack.add(adjLabelId); |
| 385 | } |
| 386 | |
| 387 | // This is the last link in path |
| 388 | // Add destination device label now. |
| 389 | if (link != null) { |
| 390 | deviceId = link.dst().deviceId(); |
| 391 | nodeLabelId = pceStore.getGlobalNodeLabel(deviceId); |
| 392 | if (nodeLabelId == null) { |
| 393 | log.error("Unable to find node label for a device id {} in store.", deviceId.toString()); |
| 394 | return null; |
| 395 | } |
| 396 | labelStack.add(nodeLabelId); |
| 397 | } |
| 398 | } else { |
| 399 | log.debug("Empty link in path."); |
| 400 | return null; |
| 401 | } |
| 402 | return new DefaultLabelStack(labelStack); |
| 403 | } |
Avantika-Huawei | dbdf772 | 2016-05-21 14:20:31 +0530 | [diff] [blame^] | 404 | |
| 405 | /** |
| 406 | * Install a rule for pushing unique global labels to the device. |
| 407 | * @param deviceId device to which flow should be pushed |
| 408 | * @param labelId label for the device |
| 409 | * @param type type of operation |
| 410 | */ |
| 411 | private void installNodeLabelRule(DeviceId deviceId, LabelResourceId labelId, Objective.Operation type) { |
| 412 | checkNotNull(flowObjectiveService); |
| 413 | checkNotNull(appId); |
| 414 | TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); |
| 415 | |
| 416 | selectorBuilder.matchMplsLabel(MplsLabel.mplsLabel(labelId.id().intValue())); |
| 417 | |
| 418 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 419 | .build(); |
| 420 | |
| 421 | ForwardingObjective.Builder forwardingObjective = DefaultForwardingObjective.builder() |
| 422 | .withSelector(selectorBuilder.build()) |
| 423 | .withTreatment(treatment) |
| 424 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 425 | .fromApp(appId) |
| 426 | .makePermanent(); |
| 427 | |
| 428 | if (type.equals(Objective.Operation.ADD)) { |
| 429 | |
| 430 | flowObjectiveService.forward(deviceId, forwardingObjective.add()); |
| 431 | } else { |
| 432 | flowObjectiveService.forward(deviceId, forwardingObjective.remove()); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * Install a rule for pushing node labels to the device of other nodes. |
| 438 | * @param deviceId device to which flow should be pushed |
| 439 | * @param labelId label for the device |
| 440 | * @param ipPrefix device for which label is pushed |
| 441 | * @param type type of operation |
| 442 | * @param bBos is this the end of sync push |
| 443 | */ |
| 444 | public void advertiseNodeLabelRule(DeviceId deviceId, LabelResourceId labelId, |
| 445 | IpPrefix ipPrefix, Objective.Operation type, boolean bBos) { |
| 446 | checkNotNull(flowObjectiveService); |
| 447 | checkNotNull(appId); |
| 448 | TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); |
| 449 | |
| 450 | selectorBuilder.matchMplsLabel(MplsLabel.mplsLabel(labelId.id().intValue())); |
| 451 | selectorBuilder.matchIPSrc(ipPrefix); |
| 452 | |
| 453 | if (bBos) { |
| 454 | selectorBuilder.matchMplsBos(bBos); |
| 455 | } |
| 456 | |
| 457 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 458 | .build(); |
| 459 | |
| 460 | ForwardingObjective.Builder forwardingObjective = DefaultForwardingObjective.builder() |
| 461 | .withSelector(selectorBuilder.build()) |
| 462 | .withTreatment(treatment) |
| 463 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 464 | .fromApp(appId) |
| 465 | .makePermanent(); |
| 466 | |
| 467 | if (type.equals(Objective.Operation.ADD)) { |
| 468 | flowObjectiveService.forward(deviceId, forwardingObjective.add()); |
| 469 | } else { |
| 470 | flowObjectiveService.forward(deviceId, forwardingObjective.remove()); |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Install a rule for pushing Adjacency labels to the device. |
| 476 | * @param deviceId device to which flow should be pushed |
| 477 | * @param labelId label for the adjacency |
| 478 | * @param srcPortNum local port of the adjacency |
| 479 | * @param dstPortNum remote port of the adjacency |
| 480 | * @param type type of operation |
| 481 | */ |
| 482 | public void installAdjLabelRule(DeviceId deviceId, LabelResourceId labelId, |
| 483 | PortNumber srcPortNum, PortNumber dstPortNum, |
| 484 | Objective.Operation type) { |
| 485 | checkNotNull(flowObjectiveService); |
| 486 | checkNotNull(appId); |
| 487 | TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); |
| 488 | |
| 489 | selectorBuilder.matchMplsLabel(MplsLabel.mplsLabel(labelId.id().intValue())); |
| 490 | selectorBuilder.matchTcpSrc(TpPort.tpPort((int) srcPortNum.toLong())); |
| 491 | selectorBuilder.matchTcpDst(TpPort.tpPort((int) dstPortNum.toLong())); |
| 492 | |
| 493 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 494 | .build(); |
| 495 | |
| 496 | ForwardingObjective.Builder forwardingObjective = DefaultForwardingObjective.builder() |
| 497 | .withSelector(selectorBuilder.build()) |
| 498 | .withTreatment(treatment) |
| 499 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 500 | .fromApp(appId) |
| 501 | .makePermanent(); |
| 502 | |
| 503 | if (type.equals(Objective.Operation.ADD)) { |
| 504 | flowObjectiveService.forward(deviceId, forwardingObjective.add()); |
| 505 | } else { |
| 506 | flowObjectiveService.forward(deviceId, forwardingObjective.remove()); |
| 507 | } |
| 508 | } |
Mahesh Poojary S | a4df1aa | 2016-05-13 08:53:53 +0530 | [diff] [blame] | 509 | } |