Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Foundation |
| 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 | |
| 17 | package org.onosproject.segmentrouting.pwaas; |
| 18 | |
| 19 | import com.google.common.collect.Iterables; |
| 20 | import com.google.common.collect.Lists; |
| 21 | import org.apache.commons.lang3.RandomUtils; |
| 22 | import org.onlab.packet.Ethernet; |
| 23 | import org.onlab.packet.MacAddress; |
| 24 | import org.onlab.packet.MplsLabel; |
| 25 | import org.onlab.packet.VlanId; |
| 26 | import org.onlab.util.KryoNamespace; |
| 27 | import org.onosproject.net.ConnectPoint; |
| 28 | import org.onosproject.net.DefaultLink; |
| 29 | import org.onosproject.net.DeviceId; |
| 30 | import org.onosproject.net.Link; |
| 31 | import org.onosproject.net.Path; |
| 32 | import org.onosproject.net.PortNumber; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 33 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 34 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 35 | import org.onosproject.net.flow.TrafficSelector; |
| 36 | import org.onosproject.net.flow.TrafficTreatment; |
| 37 | import org.onosproject.net.flow.criteria.Criteria; |
| 38 | import org.onosproject.net.flowobjective.DefaultFilteringObjective; |
| 39 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 40 | import org.onosproject.net.flowobjective.DefaultNextObjective; |
| 41 | import org.onosproject.net.flowobjective.DefaultObjectiveContext; |
| 42 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 43 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 44 | import org.onosproject.net.flowobjective.NextObjective; |
| 45 | import org.onosproject.net.flowobjective.Objective; |
| 46 | import org.onosproject.net.flowobjective.ObjectiveContext; |
| 47 | import org.onosproject.net.flowobjective.ObjectiveError; |
| 48 | import org.onosproject.segmentrouting.SegmentRoutingManager; |
| 49 | import org.onosproject.segmentrouting.SegmentRoutingService; |
| 50 | import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 51 | import org.onosproject.store.serializers.KryoNamespaces; |
| 52 | import org.onosproject.store.service.ConsistentMap; |
| 53 | import org.onosproject.store.service.DistributedSet; |
| 54 | import org.onosproject.store.service.Serializer; |
| 55 | import org.onosproject.store.service.Versioned; |
| 56 | import org.slf4j.Logger; |
| 57 | import org.slf4j.LoggerFactory; |
| 58 | |
| 59 | import java.util.ArrayList; |
| 60 | import java.util.List; |
| 61 | import java.util.Set; |
| 62 | import java.util.concurrent.CompletableFuture; |
| 63 | import java.util.stream.Collectors; |
| 64 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 65 | import static org.onosproject.net.flowobjective.ForwardingObjective.Flag.VERSATILE; |
| 66 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.INITIATION; |
| 67 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.TERMINATION; |
| 68 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Result.*; |
| 69 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.FWD; |
| 70 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.REV; |
| 71 | |
| 72 | /** |
| 73 | * Handles pwaas related events. |
| 74 | */ |
| 75 | public class DefaultL2TunnelHandler implements L2TunnelHandler { |
| 76 | |
| 77 | private static final Logger log = LoggerFactory.getLogger(DefaultL2TunnelHandler.class); |
| 78 | |
| 79 | private final SegmentRoutingManager srManager; |
| 80 | /** |
| 81 | * To store the next objectives related to the initiation. |
| 82 | */ |
| 83 | private final ConsistentMap<String, NextObjective> l2InitiationNextObjStore; |
| 84 | /** |
| 85 | * To store the next objectives related to the termination. |
| 86 | */ |
| 87 | private final ConsistentMap<String, NextObjective> l2TerminationNextObjStore; |
| 88 | |
| 89 | /** |
| 90 | * To store policies. |
| 91 | */ |
| 92 | private final ConsistentMap<String, L2TunnelPolicy> l2PolicyStore; |
| 93 | |
| 94 | /** |
| 95 | * To store tunnels. |
| 96 | */ |
| 97 | private final ConsistentMap<String, L2Tunnel> l2TunnelStore; |
| 98 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 99 | /** |
| 100 | * To store pending tunnels that need to be installed. |
| 101 | */ |
| 102 | private final ConsistentMap<String, L2Tunnel> pendingL2TunnelStore; |
| 103 | |
| 104 | /** |
| 105 | * To store pending policies that need to be installed. |
| 106 | */ |
| 107 | private final ConsistentMap<String, L2TunnelPolicy> pendingL2PolicyStore; |
| 108 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 109 | private final KryoNamespace.Builder l2TunnelKryo; |
| 110 | |
| 111 | /** |
| 112 | * Contains transport vlans used for spine-leaf pseudowires. |
| 113 | */ |
| 114 | private final DistributedSet<VlanId> vlanStore; |
| 115 | |
| 116 | /** |
| 117 | * Used for determining transport vlans for leaf-spine. |
| 118 | */ |
| 119 | private short transportVlanUpper = 4093, transportVlanLower = 3500; |
| 120 | |
| 121 | private static final VlanId UNTAGGED_TRANSPORT_VLAN = VlanId.vlanId((short) 4094); |
| 122 | |
| 123 | /** |
| 124 | * Create a l2 tunnel handler for the deploy and |
| 125 | * for the tear down of pseudo wires. |
| 126 | * |
| 127 | * @param segmentRoutingManager the segment routing manager |
| 128 | */ |
| 129 | public DefaultL2TunnelHandler(SegmentRoutingManager segmentRoutingManager) { |
| 130 | srManager = segmentRoutingManager; |
| 131 | l2TunnelKryo = new KryoNamespace.Builder() |
| 132 | .register(KryoNamespaces.API) |
| 133 | .register(L2Tunnel.class, |
| 134 | L2TunnelPolicy.class, |
| 135 | DefaultL2Tunnel.class, |
| 136 | DefaultL2TunnelPolicy.class, |
| 137 | L2Mode.class, |
| 138 | MplsLabel.class, |
| 139 | VlanId.class, |
| 140 | ConnectPoint.class); |
| 141 | |
| 142 | l2InitiationNextObjStore = srManager. |
| 143 | storageService. |
| 144 | <String, NextObjective>consistentMapBuilder(). |
| 145 | withName("onos-l2initiation-nextobj-store"). |
| 146 | withSerializer(Serializer.using(l2TunnelKryo.build())). |
| 147 | build(); |
| 148 | |
| 149 | l2TerminationNextObjStore = srManager.storageService. |
| 150 | <String, NextObjective>consistentMapBuilder() |
| 151 | .withName("onos-l2termination-nextobj-store") |
| 152 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 153 | .build(); |
| 154 | |
| 155 | l2PolicyStore = srManager.storageService |
| 156 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 157 | .withName("onos-l2-policy-store") |
| 158 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 159 | .build(); |
| 160 | |
| 161 | l2TunnelStore = srManager.storageService |
| 162 | .<String, L2Tunnel>consistentMapBuilder() |
| 163 | .withName("onos-l2-tunnel-store") |
| 164 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 165 | .build(); |
| 166 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 167 | pendingL2PolicyStore = srManager.storageService |
| 168 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 169 | .withName("onos-l2-pending-policy-store") |
| 170 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 171 | .build(); |
| 172 | |
| 173 | pendingL2TunnelStore = srManager.storageService |
| 174 | .<String, L2Tunnel>consistentMapBuilder() |
| 175 | .withName("onos-l2-pending-tunnel-store") |
| 176 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 177 | .build(); |
| 178 | |
| 179 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 180 | vlanStore = srManager.storageService.<VlanId>setBuilder() |
| 181 | .withName("onos-transport-vlan-store") |
| 182 | .withSerializer(Serializer.using( |
| 183 | new KryoNamespace.Builder() |
| 184 | .register(KryoNamespaces.API) |
| 185 | .build())) |
| 186 | .build() |
| 187 | .asDistributedSet(); |
| 188 | } |
| 189 | |
| 190 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 191 | * Used by manager only in initialization. |
| 192 | */ |
| 193 | @Override |
| 194 | public void init() { |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 195 | // Since we have no pseudowires in netcfg there |
| 196 | // is nothing to do in initialization. |
| 197 | // I leave it here because potentially we might need to |
| 198 | // use it in the future. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 199 | } |
| 200 | |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 201 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 202 | public Set<L2TunnelDescription> getL2Descriptions(boolean pending) { |
| 203 | if (!pending) { |
| 204 | List<L2Tunnel> tunnels = getL2Tunnels(); |
| 205 | List<L2TunnelPolicy> policies = getL2Policies(); |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 206 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 207 | return tunnels.stream() |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 208 | .map(l2Tunnel -> { |
| 209 | L2TunnelPolicy policy = null; |
| 210 | for (L2TunnelPolicy l2Policy : policies) { |
| 211 | if (l2Policy.tunnelId() == l2Tunnel.tunnelId()) { |
| 212 | policy = l2Policy; |
| 213 | break; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | return new DefaultL2TunnelDescription(l2Tunnel, policy); |
| 218 | }) |
| 219 | .collect(Collectors.toSet()); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 220 | } else { |
| 221 | List<L2Tunnel> tunnels = getL2PendingTunnels(); |
| 222 | List<L2TunnelPolicy> policies = getL2PendingPolicies(); |
| 223 | |
| 224 | return tunnels.stream() |
| 225 | .map(l2Tunnel -> { |
| 226 | L2TunnelPolicy policy = null; |
| 227 | for (L2TunnelPolicy l2Policy : policies) { |
| 228 | if (l2Policy.tunnelId() == l2Tunnel.tunnelId()) { |
| 229 | policy = l2Policy; |
| 230 | break; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | return new DefaultL2TunnelDescription(l2Tunnel, policy); |
| 235 | }) |
| 236 | .collect(Collectors.toSet()); |
| 237 | } |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 238 | } |
| 239 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 240 | @Override |
| 241 | public List<L2TunnelPolicy> getL2Policies() { |
| 242 | |
| 243 | return new ArrayList<>(l2PolicyStore |
| 244 | .values() |
| 245 | .stream() |
| 246 | .map(Versioned::value) |
| 247 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 248 | } |
| 249 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 250 | @Override |
| 251 | public List<L2Tunnel> getL2Tunnels() { |
| 252 | |
| 253 | return new ArrayList<>(l2TunnelStore |
| 254 | .values() |
| 255 | .stream() |
| 256 | .map(Versioned::value) |
| 257 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 258 | } |
| 259 | |
| 260 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 261 | public List<L2TunnelPolicy> getL2PendingPolicies() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 262 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 263 | return new ArrayList<>(pendingL2PolicyStore |
| 264 | .values() |
| 265 | .stream() |
| 266 | .map(Versioned::value) |
| 267 | .collect(Collectors.toList())); |
| 268 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 269 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 270 | @Override |
| 271 | public List<L2Tunnel> getL2PendingTunnels() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 272 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 273 | return new ArrayList<>(pendingL2TunnelStore |
| 274 | .values() |
| 275 | .stream() |
| 276 | .map(Versioned::value) |
| 277 | .collect(Collectors.toList())); |
| 278 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 279 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 280 | /** |
| 281 | * Manages intermediate filtering rules. |
| 282 | * |
| 283 | * For leaf-spine-spine pseudowires we need to install a special filtering |
| 284 | * rule in the intermediate spine for the appropriate transport vlan. |
| 285 | * |
| 286 | * @param pw The pseudowire, it will have the path and the transport vlan. |
| 287 | */ |
| 288 | private Result manageIntermediateFiltering(L2TunnelDescription pw, boolean leafSpinePw) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 289 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 290 | // only leaf-spine-spine should need intermediate rules for now |
| 291 | if (!leafSpinePw) { |
| 292 | return Result.SUCCESS; |
| 293 | } |
| 294 | if (pw.l2Tunnel().pathUsed().size() != 2) { |
| 295 | return Result.SUCCESS; |
| 296 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 297 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 298 | List<Link> path = pw.l2Tunnel().pathUsed(); |
| 299 | DeviceId intermediateSpineId = pw.l2Tunnel().pathUsed().get(0).dst().deviceId(); |
| 300 | L2Tunnel l2Tunnel = pw.l2Tunnel(); |
| 301 | |
| 302 | log.info("Installing intermediate filtering rules for spine {} , for pseudowire {}", |
| 303 | intermediateSpineId, pw.l2Tunnel().tunnelId()); |
| 304 | |
| 305 | MacAddress dstMac; |
| 306 | try { |
| 307 | dstMac = srManager.deviceConfiguration().getDeviceMac(intermediateSpineId); |
| 308 | } catch (Exception e) { |
| 309 | log.info("Device not found in configuration, no programming of MAC address"); |
| 310 | dstMac = null; |
| 311 | } |
| 312 | |
| 313 | PortNumber inPort; |
| 314 | |
| 315 | inPort = path.get(0).dst().port(); |
| 316 | |
| 317 | log.debug("Populating filtering objective for pseudowire transport" + |
| 318 | " with vlan = {}, port = {}, mac = {} for device {}", |
| 319 | l2Tunnel.transportVlan(), |
| 320 | inPort, |
| 321 | dstMac, |
| 322 | intermediateSpineId); |
| 323 | |
| 324 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 325 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 326 | DefaultObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 327 | log.debug("Special filtObj for " + |
| 328 | "for {} populated", |
| 329 | l2Tunnel.tunnelId()), |
| 330 | (objective, error) -> |
| 331 | log.warn("Failed to populate " + |
| 332 | "special filtObj " + |
| 333 | "rule for {}: {}", |
| 334 | l2Tunnel.tunnelId(), error)); |
| 335 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 336 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 337 | srManager.flowObjectiveService.filter(intermediateSpineId, filteringObjectiveBuilder.add(context)); |
| 338 | |
| 339 | inPort = path.get(1).src().port(); |
| 340 | |
| 341 | log.debug("Populating filtering objective for pseudowire transport" + |
| 342 | " with vlan = {}, port = {}, mac = {} for device {}", |
| 343 | l2Tunnel.transportVlan(), |
| 344 | inPort, |
| 345 | dstMac, |
| 346 | intermediateSpineId); |
| 347 | |
| 348 | filteringObjectiveBuilder = |
| 349 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 350 | context = new DefaultObjectiveContext((objective) -> |
| 351 | log.debug("Special filtObj for " + "for {} populated", |
| 352 | l2Tunnel.tunnelId()), |
| 353 | (objective, error) -> |
| 354 | log.warn("Failed to populate " + |
| 355 | "special filtObj " + |
| 356 | "rule for {}: {}", |
| 357 | l2Tunnel.tunnelId(), error)); |
| 358 | treatment = DefaultTrafficTreatment.builder(); |
| 359 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 360 | srManager.flowObjectiveService.filter(intermediateSpineId, filteringObjectiveBuilder.add(context)); |
| 361 | |
| 362 | return Result.SUCCESS; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 363 | } |
| 364 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 365 | /** |
| 366 | * Returns the new vlan id for an ingress point of a |
| 367 | * pseudowire. For double tagged, it is the outer, |
| 368 | * For single tagged it is the single tag, and for |
| 369 | * inner it is None. |
| 370 | * |
| 371 | * @param ingressOuter vlanid of ingress outer |
| 372 | * @param ingressInner vlanid of ingress inner |
| 373 | * @param egressOuter vlanid of egress outer |
| 374 | * @param egressInner vlanid of egress inner |
| 375 | * @return returns the vlan id which will be installed at vlan table 1. |
| 376 | */ |
| 377 | private VlanId determineEgressVlan(VlanId ingressOuter, VlanId ingressInner, |
| 378 | VlanId egressOuter, VlanId egressInner) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 379 | // validity of vlan combinations was checked at verifyPseudowire |
| 380 | if (!(ingressOuter.equals(VlanId.NONE))) { |
| 381 | return egressOuter; |
| 382 | } else if (!(ingressInner.equals(VlanId.NONE))) { |
| 383 | return egressInner; |
| 384 | } else { |
| 385 | return VlanId.vlanId("None"); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * Determines vlan used for transporting the pw traffic. |
| 391 | * |
| 392 | * Leaf-Leaf traffic is transferred untagged, thus we choose the UNTAGGED_TRANSPORT_VLAN |
| 393 | * and also make sure to add the popVlan instruction. |
| 394 | * For spine-leaf pws we choose the highest vlan value available from a certain range. |
| 395 | * |
| 396 | * @param spinePw if the pw is leaf-spine. |
| 397 | * @return The vlan id chossen to transport this pseudowire. If vlan is UNTAGGED_TRANSPORT_VLAN |
| 398 | * then the pw is transported untagged. |
| 399 | */ |
| 400 | private VlanId determineTransportVlan(boolean spinePw) { |
| 401 | |
| 402 | if (!spinePw) { |
| 403 | |
| 404 | log.info("Untagged transport with internal vlan {} for pseudowire!", UNTAGGED_TRANSPORT_VLAN); |
| 405 | return UNTAGGED_TRANSPORT_VLAN; |
| 406 | } else { |
| 407 | for (short i = transportVlanUpper; i > transportVlanLower; i--) { |
| 408 | |
| 409 | VlanId vlanToUse = VlanId.vlanId((short) i); |
| 410 | if (!vlanStore.contains(vlanToUse)) { |
| 411 | |
| 412 | vlanStore.add(vlanToUse); |
| 413 | log.info("Transport vlan {} for pseudowire!", vlanToUse); |
| 414 | return vlanToUse; |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | log.info("No available transport vlan found, pseudowire traffic will be carried untagged " + |
| 419 | "with internal vlan {}!", UNTAGGED_TRANSPORT_VLAN); |
| 420 | return UNTAGGED_TRANSPORT_VLAN; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | /** |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 425 | * Returns true if path size is valid according to the current logic. |
| 426 | * |
| 427 | * @param pathSize The size of the path |
| 428 | * @return True if path size is valid, false otherwise. |
| 429 | */ |
| 430 | private boolean isValidPathSize(int pathSize) { |
| 431 | return ((pathSize >= 1) && (pathSize <= 4)); |
| 432 | } |
| 433 | |
| 434 | /** |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 435 | * Adds a single pseudowire. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 436 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 437 | * @param pw The pseudowire to deploy |
| 438 | * @param removeFromPending if to remove the pseudowire from the pending store |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 439 | * @return result of pseudowire deployment |
| 440 | */ |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 441 | private Result deployPseudowire(L2TunnelDescription pw, boolean removeFromPending) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 442 | |
| 443 | Result result; |
| 444 | long l2TunnelId; |
| 445 | |
| 446 | l2TunnelId = pw.l2Tunnel().tunnelId(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 447 | // The tunnel id cannot be 0. |
| 448 | if (l2TunnelId == 0) { |
| 449 | log.warn("Tunnel id id must be > 0"); |
| 450 | return Result.ADDITION_ERROR; |
| 451 | } |
| 452 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 453 | // leafSpinePw determines if this is a leaf-leaf |
| 454 | // or leaf-spine pseudowire |
| 455 | boolean leafSpinePw; |
| 456 | ConnectPoint cp1 = pw.l2TunnelPolicy().cP1(); |
| 457 | ConnectPoint cp2 = pw.l2TunnelPolicy().cP2(); |
| 458 | try { |
| 459 | // differentiate between leaf-leaf pseudowires and leaf-spine |
| 460 | if (!srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 461 | !srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 462 | log.error("Can not deploy pseudowire from spine to spine!"); |
| 463 | return Result.INTERNAL_ERROR; |
| 464 | } else if (srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 465 | srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 466 | leafSpinePw = false; |
| 467 | } else { |
| 468 | leafSpinePw = true; |
| 469 | } |
| 470 | } catch (DeviceConfigNotFoundException e) { |
| 471 | log.error("A device for pseudowire connection points does not exist."); |
| 472 | return Result.INTERNAL_ERROR; |
| 473 | } |
| 474 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 475 | // get path here, need to use the same for fwd and rev direction |
| 476 | List<Link> path = getPath(pw.l2TunnelPolicy().cP1(), |
| 477 | pw.l2TunnelPolicy().cP2()); |
| 478 | if (path == null) { |
| 479 | log.info("Deploying process : No path between the connection points for pseudowire {}", l2TunnelId); |
| 480 | return WRONG_PARAMETERS; |
| 481 | } |
| 482 | |
| 483 | Link fwdNextHop; |
| 484 | Link revNextHop; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 485 | if (!isValidPathSize(path.size())) { |
| 486 | log.error("Deploying process : Path size for pseudowire should be of" + |
| 487 | " one of the following sizes = [1, 2, 3, 4], for pseudowire {}", |
| 488 | l2TunnelId); |
| 489 | return INTERNAL_ERROR; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 490 | } |
| 491 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 492 | // oneHope flag is used to determine if we need to |
| 493 | // install transit mpls rules |
| 494 | boolean oneHop = true; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 495 | if (path.size() > 1) { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 496 | oneHop = false; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | fwdNextHop = path.get(0); |
| 500 | revNextHop = reverseLink(path.get(path.size() - 1)); |
| 501 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 502 | pw.l2Tunnel().setPath(path); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 503 | pw.l2Tunnel().setTransportVlan(determineTransportVlan(leafSpinePw)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 504 | |
| 505 | // next hops for next objectives |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 506 | log.info("Deploying process : Establishing forward direction for pseudowire {}", l2TunnelId); |
| 507 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 508 | VlanId egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP1OuterTag(), |
| 509 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 510 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 511 | pw.l2TunnelPolicy().cP2InnerTag()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 512 | // We establish the tunnel. |
| 513 | // result.nextId will be used in fwd |
| 514 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 515 | pw.l2TunnelPolicy().cP1(), |
| 516 | pw.l2TunnelPolicy().cP2(), |
| 517 | FWD, |
| 518 | fwdNextHop, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 519 | leafSpinePw, |
| 520 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 521 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 522 | if (result != SUCCESS) { |
| 523 | log.info("Deploying process : Error in deploying pseudowire initiation for CP1"); |
| 524 | return Result.ADDITION_ERROR; |
| 525 | } |
| 526 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 527 | // We create the policy. |
| 528 | result = deployPolicy(l2TunnelId, |
| 529 | pw.l2TunnelPolicy().cP1(), |
| 530 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 531 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 532 | egressVlan, |
| 533 | result.nextId); |
| 534 | if (result != SUCCESS) { |
| 535 | log.info("Deploying process : Error in deploying pseudowire policy for CP1"); |
| 536 | return Result.ADDITION_ERROR; |
| 537 | } |
| 538 | |
| 539 | // We terminate the tunnel |
| 540 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 541 | pw.l2TunnelPolicy().cP2(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 542 | egressVlan, |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 543 | FWD, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 544 | leafSpinePw, |
| 545 | oneHop); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 546 | |
| 547 | if (result != SUCCESS) { |
| 548 | log.info("Deploying process : Error in deploying pseudowire termination for CP1"); |
| 549 | return Result.ADDITION_ERROR; |
| 550 | |
| 551 | } |
| 552 | |
| 553 | log.info("Deploying process : Establishing reverse direction for pseudowire {}", l2TunnelId); |
| 554 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 555 | egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP2OuterTag(), |
| 556 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 557 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 558 | pw.l2TunnelPolicy().cP1InnerTag()); |
| 559 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 560 | // We establish the reverse tunnel. |
| 561 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 562 | pw.l2TunnelPolicy().cP2(), |
| 563 | pw.l2TunnelPolicy().cP1(), |
| 564 | REV, |
| 565 | revNextHop, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 566 | leafSpinePw, |
| 567 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 568 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 569 | if (result != SUCCESS) { |
| 570 | log.info("Deploying process : Error in deploying pseudowire initiation for CP2"); |
| 571 | return Result.ADDITION_ERROR; |
| 572 | } |
| 573 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 574 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 575 | result = deployPolicy(l2TunnelId, |
| 576 | pw.l2TunnelPolicy().cP2(), |
| 577 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 578 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 579 | egressVlan, |
| 580 | result.nextId); |
| 581 | if (result != SUCCESS) { |
| 582 | log.info("Deploying process : Error in deploying policy for CP2"); |
| 583 | return Result.ADDITION_ERROR; |
| 584 | } |
| 585 | |
| 586 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 587 | pw.l2TunnelPolicy().cP1(), |
| 588 | egressVlan, |
| 589 | REV, |
| 590 | leafSpinePw, |
| 591 | oneHop); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 592 | |
| 593 | if (result != SUCCESS) { |
| 594 | log.info("Deploying process : Error in deploying pseudowire termination for CP2"); |
| 595 | return Result.ADDITION_ERROR; |
| 596 | } |
| 597 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 598 | result = manageIntermediateFiltering(pw, leafSpinePw); |
| 599 | if (result != SUCCESS) { |
| 600 | log.info("Deploying process : Error in installing intermediate rules for tagged transport!"); |
| 601 | return Result.ADDITION_ERROR; |
| 602 | } |
| 603 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 604 | log.info("Deploying process : Updating relevant information for pseudowire {}", l2TunnelId); |
| 605 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 606 | // Populate stores as the final step of the process |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 607 | l2TunnelStore.put(Long.toString(l2TunnelId), pw.l2Tunnel()); |
| 608 | l2PolicyStore.put(Long.toString(l2TunnelId), pw.l2TunnelPolicy()); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 609 | // if removeFromPending then remove the information from the pending stores. |
| 610 | if (removeFromPending) { |
| 611 | // check existence of tunnels/policy in the pending store, if one is missing abort! |
| 612 | Versioned<L2Tunnel> l2TunnelVersioned = pendingL2TunnelStore.get(Long.toString(l2TunnelId)); |
| 613 | Versioned<L2TunnelPolicy> l2TunnelPolicyVersioned = pendingL2PolicyStore.get(Long.toString(l2TunnelId)); |
| 614 | if ((l2TunnelVersioned == null) || (l2TunnelPolicyVersioned == null)) { |
| 615 | log.warn("Removal process : Policy and/or tunnel missing for tunnel id {} in pending store", |
| 616 | l2TunnelId); |
| 617 | } else { |
| 618 | pendingL2TunnelStore.remove(Long.toString(l2TunnelId)); |
| 619 | pendingL2PolicyStore.remove(Long.toString(l2TunnelId)); |
| 620 | } |
| 621 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 622 | |
| 623 | return Result.SUCCESS; |
| 624 | } |
| 625 | |
| 626 | /** |
| 627 | * To deploy a number of pseudo wires. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 628 | * |
| 629 | * @param pwToAdd the set of pseudo wires to add |
| 630 | */ |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 631 | public void deploy(Set<L2TunnelDescription> pwToAdd) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 632 | |
| 633 | Result result; |
| 634 | |
| 635 | for (L2TunnelDescription currentL2Tunnel : pwToAdd) { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 636 | // add pseudowires one by one |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 637 | long tunnelId = currentL2Tunnel.l2TunnelPolicy().tunnelId(); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 638 | result = deployPseudowire(currentL2Tunnel, false); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 639 | switch (result) { |
| 640 | case INTERNAL_ERROR: |
| 641 | log.warn("Could not deploy pseudowire {}, internal error!", tunnelId); |
| 642 | break; |
| 643 | case WRONG_PARAMETERS: |
| 644 | log.warn("Could not deploy pseudowire {}, wrong parameters!", tunnelId); |
| 645 | break; |
| 646 | case ADDITION_ERROR: |
| 647 | log.warn("Could not deploy pseudowire {}, error in populating rules!", tunnelId); |
| 648 | break; |
| 649 | default: |
| 650 | log.info("Pseudowire with {} succesfully deployed!", tunnelId); |
| 651 | break; |
| 652 | } |
| 653 | } |
| 654 | } |
| 655 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 656 | /** |
| 657 | * Helper function to update a pw. |
| 658 | * <p> |
| 659 | * Called upon configuration changes that update existing pseudowires and |
| 660 | * when links fail. Checking of mastership for CP1 is mandatory because it is |
| 661 | * called in multiple instances for both cases. |
| 662 | * <p> |
| 663 | * Meant to call asynchronously for various events, thus this call can not block and need |
| 664 | * to perform asynchronous operations. |
| 665 | * <p> |
| 666 | * For this reason error checking is omitted. |
| 667 | * |
| 668 | * @param oldPw the pseudo wire to remove |
| 669 | * @param newPw the pseudo wire to add |
| 670 | */ |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 671 | /* |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 672 | private void updatePw(L2TunnelDescription oldPw, |
| 673 | L2TunnelDescription newPw) { |
| 674 | ConnectPoint oldCp1 = oldPw.l2TunnelPolicy().cP1(); |
| 675 | long tunnelId = oldPw.l2Tunnel().tunnelId(); |
| 676 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 677 | // only determine if the new pseudowire is leaf-spine, because |
| 678 | // removal process is the same for both leaf-leaf and leaf-spine pws |
| 679 | boolean newPwSpine; |
| 680 | try { |
| 681 | newPwSpine = !srManager.deviceConfiguration().isEdgeDevice(newPw.l2TunnelPolicy().cP1().deviceId()) || |
| 682 | !srManager.deviceConfiguration().isEdgeDevice(newPw.l2TunnelPolicy().cP2().deviceId()); |
| 683 | } catch (DeviceConfigNotFoundException e) { |
| 684 | // if exception is caught treat the new pw as leaf-leaf |
| 685 | newPwSpine = false; |
| 686 | } |
| 687 | |
| 688 | // copy the variable here because we need to use it in lambda thus it needs to be final |
| 689 | boolean finalNewPwSpine = newPwSpine; |
| 690 | |
| 691 | log.info("Updating pseudowire {}", oldPw.l2Tunnel().tunnelId()); |
| 692 | |
| 693 | // The async tasks to orchestrate the next and forwarding update |
| 694 | CompletableFuture<ObjectiveError> fwdInitNextFuture = new CompletableFuture<>(); |
| 695 | CompletableFuture<ObjectiveError> revInitNextFuture = new CompletableFuture<>(); |
| 696 | CompletableFuture<ObjectiveError> fwdTermNextFuture = new CompletableFuture<>(); |
| 697 | CompletableFuture<ObjectiveError> revTermNextFuture = new CompletableFuture<>(); |
| 698 | CompletableFuture<ObjectiveError> fwdPwFuture = new CompletableFuture<>(); |
| 699 | CompletableFuture<ObjectiveError> revPwFuture = new CompletableFuture<>(); |
| 700 | |
| 701 | // first delete all information from our stores, we can not do it asynchronously |
| 702 | l2PolicyStore.remove(Long.toString(tunnelId)); |
| 703 | |
| 704 | // grab the old l2 tunnel from the store, since it carries information which is not exposed |
| 705 | // to the user configuration and set it to oldPw. |
| 706 | oldPw.setL2Tunnel(l2TunnelStore.get(Long.toString(tunnelId)).value()); |
| 707 | VlanId transportVlan = l2TunnelStore.get(Long.toString(tunnelId)).value().transportVlan(); |
| 708 | l2TunnelStore.remove(Long.toString(tunnelId)); |
| 709 | |
| 710 | // remove the reserved transport vlan, if one is used |
| 711 | if (!transportVlan.equals(UNTAGGED_TRANSPORT_VLAN)) { |
| 712 | vlanStore.remove(transportVlan); |
| 713 | } |
| 714 | |
| 715 | // First we remove both policy. |
| 716 | log.debug("Start deleting fwd policy for {}", tunnelId); |
| 717 | VlanId egressVlan = determineEgressVlan(oldPw.l2TunnelPolicy().cP1OuterTag(), |
| 718 | oldPw.l2TunnelPolicy().cP1InnerTag(), |
| 719 | oldPw.l2TunnelPolicy().cP2OuterTag(), |
| 720 | oldPw.l2TunnelPolicy().cP2InnerTag()); |
| 721 | deletePolicy(tunnelId, oldPw.l2TunnelPolicy().cP1(), |
| 722 | oldPw.l2TunnelPolicy().cP1InnerTag(), |
| 723 | oldPw.l2TunnelPolicy().cP1OuterTag(), |
| 724 | egressVlan, |
| 725 | fwdInitNextFuture, |
| 726 | FWD); |
| 727 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 728 | deletePolicy(tunnelId, oldPw.l2TunnelPolicy().cP2(), |
| 729 | oldPw.l2TunnelPolicy().cP2InnerTag(), |
| 730 | oldPw.l2TunnelPolicy().cP2OuterTag(), |
| 731 | egressVlan, revInitNextFuture, |
| 732 | REV); |
| 733 | |
| 734 | // Finally we remove both the tunnels. |
| 735 | fwdInitNextFuture.thenAcceptAsync(status -> { |
| 736 | if (status == null) { |
| 737 | log.debug("Update process : Fwd policy removed. " + |
| 738 | "Now remove fwd {} for {}", INITIATION, tunnelId); |
| 739 | tearDownPseudoWireInit(tunnelId, oldPw.l2TunnelPolicy().cP1(), fwdTermNextFuture, FWD); |
| 740 | } |
| 741 | }); |
| 742 | revInitNextFuture.thenAcceptAsync(status -> { |
| 743 | if (status == null) { |
| 744 | log.debug("Update process : Rev policy removed. " + |
| 745 | "Now remove rev {} for {}", INITIATION, tunnelId); |
| 746 | tearDownPseudoWireInit(tunnelId, oldPw.l2TunnelPolicy().cP2(), revTermNextFuture, REV); |
| 747 | } |
| 748 | }); |
| 749 | fwdTermNextFuture.thenAcceptAsync(status -> { |
| 750 | if (status == null) { |
| 751 | log.debug("Update process : Fwd {} removed. " + |
| 752 | "Now remove fwd {} for {}", INITIATION, TERMINATION, tunnelId); |
| 753 | tearDownPseudoWireTerm(oldPw.l2Tunnel(), oldPw.l2TunnelPolicy().cP2(), fwdPwFuture, FWD); |
| 754 | } |
| 755 | }); |
| 756 | revTermNextFuture.thenAcceptAsync(status -> { |
| 757 | if (status == null) { |
| 758 | log.debug("Update process : Rev {} removed. " + |
| 759 | "Now remove rev {} for {}", INITIATION, TERMINATION, tunnelId); |
| 760 | tearDownPseudoWireTerm(oldPw.l2Tunnel(), oldPw.l2TunnelPolicy().cP1(), revPwFuture, REV); |
| 761 | } |
| 762 | }); |
| 763 | |
| 764 | // get path here, need to use the same for fwd and rev direction |
| 765 | List<Link> path = getPath(newPw.l2TunnelPolicy().cP1(), |
| 766 | newPw.l2TunnelPolicy().cP2()); |
| 767 | if (path == null) { |
| 768 | log.error("Update process : " + |
| 769 | "No path between the connection points for pseudowire {}", newPw.l2Tunnel().tunnelId()); |
| 770 | return; |
| 771 | } |
| 772 | |
| 773 | Link fwdNextHop, revNextHop; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 774 | if (!isValidPathSize(path.size())) { |
| 775 | log.error("Deploying process : Path size for pseudowire should be of one of the following sizes" + |
| 776 | " = [1, 2, 3, 4], for pseudowire {}", |
| 777 | newPw.l2Tunnel().tunnelId()); |
| 778 | return; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 779 | } |
| 780 | |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 781 | // spinePw signifies if we have a leaf-spine pw |
| 782 | // thus only one label should be pushed (that of pw) |
| 783 | // if size>1 we need to push intermediate labels also. |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 784 | boolean oneHope = true; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 785 | if (path.size() > 1) { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 786 | oneHope = false; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 787 | } |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 788 | final boolean oneHopeFinal = oneHope; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 789 | |
| 790 | fwdNextHop = path.get(0); |
| 791 | revNextHop = reverseLink(path.get(path.size() - 1)); |
| 792 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 793 | // set new path and transport vlan. |
| 794 | newPw.l2Tunnel().setPath(path); |
| 795 | newPw.l2Tunnel().setTransportVlan(determineTransportVlan(newPwSpine)); |
| 796 | |
| 797 | // At the end we install the updated PW. |
| 798 | fwdPwFuture.thenAcceptAsync(status -> { |
| 799 | if (status == null) { |
| 800 | |
| 801 | // Upgrade stores and book keeping information, need to move this here |
| 802 | // cause this call is asynchronous. |
| 803 | l2PolicyStore.put(Long.toString(tunnelId), newPw.l2TunnelPolicy()); |
| 804 | l2TunnelStore.put(Long.toString(tunnelId), newPw.l2Tunnel()); |
| 805 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 806 | VlanId egressVlanId = determineEgressVlan(newPw.l2TunnelPolicy().cP1OuterTag(), |
| 807 | newPw.l2TunnelPolicy().cP1InnerTag(), |
| 808 | newPw.l2TunnelPolicy().cP2OuterTag(), |
| 809 | newPw.l2TunnelPolicy().cP2InnerTag()); |
| 810 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 811 | log.debug("Update process : Deploying new fwd pw for {}", tunnelId); |
| 812 | Result lamdaResult = deployPseudoWireInit(newPw.l2Tunnel(), newPw.l2TunnelPolicy().cP1(), |
| 813 | newPw.l2TunnelPolicy().cP2(), FWD, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 814 | fwdNextHop, finalNewPwSpine, oneHopeFinal, egressVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 815 | if (lamdaResult != SUCCESS) { |
| 816 | return; |
| 817 | } |
| 818 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 819 | lamdaResult = deployPolicy(tunnelId, newPw.l2TunnelPolicy().cP1(), |
| 820 | newPw.l2TunnelPolicy().cP1InnerTag(), |
| 821 | newPw.l2TunnelPolicy().cP1OuterTag(), |
| 822 | egressVlanId, lamdaResult.nextId); |
| 823 | if (lamdaResult != SUCCESS) { |
| 824 | return; |
| 825 | } |
| 826 | deployPseudoWireTerm(newPw.l2Tunnel(), newPw.l2TunnelPolicy().cP2(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 827 | egressVlanId, FWD, finalNewPwSpine, oneHopeFinal); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 828 | |
| 829 | } |
| 830 | }); |
| 831 | revPwFuture.thenAcceptAsync(status -> { |
| 832 | if (status == null) { |
| 833 | |
| 834 | log.debug("Update process : Deploying new rev pw for {}", tunnelId); |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 835 | |
| 836 | VlanId egressVlanId = determineEgressVlan(newPw.l2TunnelPolicy().cP2OuterTag(), |
| 837 | newPw.l2TunnelPolicy().cP2InnerTag(), |
| 838 | newPw.l2TunnelPolicy().cP1OuterTag(), |
| 839 | newPw.l2TunnelPolicy().cP1InnerTag()); |
| 840 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 841 | Result lamdaResult = deployPseudoWireInit(newPw.l2Tunnel(), |
| 842 | newPw.l2TunnelPolicy().cP2(), |
| 843 | newPw.l2TunnelPolicy().cP1(), |
| 844 | REV, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 845 | revNextHop, finalNewPwSpine, oneHopeFinal, egressVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 846 | if (lamdaResult != SUCCESS) { |
| 847 | return; |
| 848 | } |
| 849 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 850 | lamdaResult = deployPolicy(tunnelId, |
| 851 | newPw.l2TunnelPolicy().cP2(), |
| 852 | newPw.l2TunnelPolicy().cP2InnerTag(), |
| 853 | newPw.l2TunnelPolicy().cP2OuterTag(), |
| 854 | egressVlanId, |
| 855 | lamdaResult.nextId); |
| 856 | if (lamdaResult != SUCCESS) { |
| 857 | return; |
| 858 | } |
| 859 | deployPseudoWireTerm(newPw.l2Tunnel(), |
| 860 | newPw.l2TunnelPolicy().cP1(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 861 | egressVlanId, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 862 | REV, finalNewPwSpine, oneHopeFinal); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 863 | } |
| 864 | }); |
| 865 | } |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 866 | */ |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 867 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 868 | /** |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 869 | * Tears down connection points of pseudowires. We can either tear down both connection points, |
| 870 | * or each one of them. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 871 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 872 | * @param l2TunnelId The tunnel id for this pseudowire. |
| 873 | * @param tearDownFirst Boolean, true if we want to tear down cp1 |
| 874 | * @param tearDownSecond Boolean, true if we want to tear down cp2 |
| 875 | * @return |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 876 | */ |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 877 | private Result tearDownConnectionPoints(long l2TunnelId, boolean tearDownFirst, boolean tearDownSecond) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 878 | |
| 879 | CompletableFuture<ObjectiveError> fwdInitNextFuture = new CompletableFuture<>(); |
| 880 | CompletableFuture<ObjectiveError> fwdTermNextFuture = new CompletableFuture<>(); |
| 881 | |
| 882 | CompletableFuture<ObjectiveError> revInitNextFuture = new CompletableFuture<>(); |
| 883 | CompletableFuture<ObjectiveError> revTermNextFuture = new CompletableFuture<>(); |
| 884 | |
| 885 | if (l2TunnelId == 0) { |
| 886 | log.warn("Removal process : Tunnel id cannot be 0"); |
| 887 | return Result.WRONG_PARAMETERS; |
| 888 | } |
| 889 | |
| 890 | // check existence of tunnels/policy in the store, if one is missing abort! |
| 891 | Versioned<L2Tunnel> l2TunnelVersioned = l2TunnelStore.get(Long.toString(l2TunnelId)); |
| 892 | Versioned<L2TunnelPolicy> l2TunnelPolicyVersioned = l2PolicyStore.get(Long.toString(l2TunnelId)); |
| 893 | if ((l2TunnelVersioned == null) || (l2TunnelPolicyVersioned == null)) { |
| 894 | log.warn("Removal process : Policy and/or tunnel missing for tunnel id {}", l2TunnelId); |
| 895 | return Result.REMOVAL_ERROR; |
| 896 | } |
| 897 | |
| 898 | L2TunnelDescription pwToRemove = new DefaultL2TunnelDescription(l2TunnelVersioned.value(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 899 | l2TunnelPolicyVersioned.value()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 900 | |
| 901 | // remove the tunnels and the policies from the store |
| 902 | l2PolicyStore.remove(Long.toString(l2TunnelId)); |
| 903 | l2TunnelStore.remove(Long.toString(l2TunnelId)); |
| 904 | |
| 905 | // remove the reserved transport vlan |
| 906 | if (!pwToRemove.l2Tunnel().transportVlan().equals(UNTAGGED_TRANSPORT_VLAN)) { |
| 907 | vlanStore.remove(pwToRemove.l2Tunnel().transportVlan()); |
| 908 | } |
| 909 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 910 | if (tearDownFirst) { |
| 911 | log.info("Removal process : Tearing down forward direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 912 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 913 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 914 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 915 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 916 | pwToRemove.l2TunnelPolicy().cP2InnerTag()); |
| 917 | deletePolicy(l2TunnelId, |
| 918 | pwToRemove.l2TunnelPolicy().cP1(), |
| 919 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 920 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 921 | egressVlan, |
| 922 | fwdInitNextFuture, |
| 923 | FWD); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 924 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 925 | fwdInitNextFuture.thenAcceptAsync(status -> { |
| 926 | if (status == null) { |
| 927 | // Finally we will tear down the pseudo wire. |
| 928 | tearDownPseudoWireInit(l2TunnelId, |
| 929 | pwToRemove.l2TunnelPolicy().cP1(), |
| 930 | fwdTermNextFuture, |
| 931 | FWD); |
| 932 | } |
| 933 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 934 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 935 | fwdTermNextFuture.thenAcceptAsync(status -> { |
| 936 | if (status == null) { |
| 937 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 938 | pwToRemove.l2TunnelPolicy().cP2(), |
| 939 | null, |
| 940 | FWD); |
| 941 | } |
| 942 | }); |
| 943 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 944 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 945 | if (tearDownSecond) { |
| 946 | log.info("Removal process : Tearing down reverse direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 947 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 948 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 949 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 950 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 951 | pwToRemove.l2TunnelPolicy().cP1InnerTag()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 952 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 953 | // We do the same operations on the reverse side. |
| 954 | deletePolicy(l2TunnelId, |
| 955 | pwToRemove.l2TunnelPolicy().cP2(), |
| 956 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 957 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 958 | egressVlan, |
| 959 | revInitNextFuture, |
| 960 | REV); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 961 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 962 | revInitNextFuture.thenAcceptAsync(status -> { |
| 963 | if (status == null) { |
| 964 | tearDownPseudoWireInit(l2TunnelId, |
| 965 | pwToRemove.l2TunnelPolicy().cP2(), |
| 966 | revTermNextFuture, |
| 967 | REV); |
| 968 | } |
| 969 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 970 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 971 | revTermNextFuture.thenAcceptAsync(status -> { |
| 972 | if (status == null) { |
| 973 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 974 | pwToRemove.l2TunnelPolicy().cP1(), |
| 975 | null, |
| 976 | REV); |
| 977 | } |
| 978 | }); |
| 979 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 980 | |
| 981 | return Result.SUCCESS; |
| 982 | } |
| 983 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 984 | /** |
| 985 | * Helper function for removing a single pseudowire. |
| 986 | * <p> |
| 987 | * No mastership of CP1 is checked, because it can be called from |
| 988 | * the CLI for removal of pseudowires. |
| 989 | * |
| 990 | * @param l2TunnelId the id of the pseudowire to tear down |
| 991 | * @return Returns SUCCESS if no error is obeserved or an appropriate |
| 992 | * error on a failure |
| 993 | */ |
| 994 | private Result tearDownPseudowire(long l2TunnelId) { |
| 995 | return tearDownConnectionPoints(l2TunnelId, true, true); |
| 996 | } |
| 997 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 998 | @Override |
| 999 | public void tearDown(Set<L2TunnelDescription> pwToRemove) { |
| 1000 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1001 | for (L2TunnelDescription currentL2Tunnel : pwToRemove) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1002 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1003 | long tunnelId = currentL2Tunnel.l2TunnelPolicy().tunnelId(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1004 | log.info("Removing pseudowire {}", tunnelId); |
| 1005 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1006 | Result result = tearDownPseudowire(tunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1007 | switch (result) { |
| 1008 | case WRONG_PARAMETERS: |
| 1009 | log.warn("Error in supplied parameters for the pseudowire removal with tunnel id {}!", |
| 1010 | tunnelId); |
| 1011 | break; |
| 1012 | case REMOVAL_ERROR: |
| 1013 | log.warn("Error in pseudowire removal with tunnel id {}!", tunnelId); |
| 1014 | break; |
| 1015 | default: |
| 1016 | log.warn("Pseudowire with tunnel id {} was removed successfully", tunnelId); |
| 1017 | } |
| 1018 | } |
| 1019 | } |
| 1020 | |
| 1021 | /** |
| 1022 | * Handles the policy establishment which consists in |
| 1023 | * create the filtering and forwarding objectives related |
| 1024 | * to the initiation and termination. |
| 1025 | * |
| 1026 | * @param tunnelId the tunnel id |
| 1027 | * @param ingress the ingress point |
| 1028 | * @param ingressInner the ingress inner tag |
| 1029 | * @param ingressOuter the ingress outer tag |
| 1030 | * @param nextId the next objective id |
| 1031 | * @param egressVlan Vlan-id to set, depends on ingress vlan |
| 1032 | * combinations. For example, if pw is double tagged |
| 1033 | * then this is the value of the outer vlan, if single |
| 1034 | * tagged then it is the new value of the single tag. |
| 1035 | * Should be None for untagged traffic. |
| 1036 | * @return the result of the operation |
| 1037 | */ |
| 1038 | private Result deployPolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, |
| 1039 | VlanId ingressOuter, VlanId egressVlan, int nextId) { |
| 1040 | |
| 1041 | List<Objective> objectives = Lists.newArrayList(); |
| 1042 | // We create the forwarding objective for supporting |
| 1043 | // the l2 tunnel. |
| 1044 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 1045 | // We create and add objective context. |
| 1046 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1047 | log.debug("FwdObj for tunnel {} populated", tunnelId), |
| 1048 | (objective, error) -> |
| 1049 | log.warn("Failed to populate fwdrObj " + |
| 1050 | "for tunnel {}", tunnelId, error)); |
| 1051 | objectives.add(fwdBuilder.add(context)); |
| 1052 | |
| 1053 | // We create the filtering objective to define the |
| 1054 | // permit traffic in the switch |
| 1055 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 1056 | |
| 1057 | // We add the metadata. |
| 1058 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 1059 | .builder() |
| 1060 | .setTunnelId(tunnelId) |
| 1061 | .setVlanId(egressVlan); |
| 1062 | filtBuilder.withMeta(treatment.build()); |
| 1063 | |
| 1064 | // We create and add objective context. |
| 1065 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for tunnel {} populated", tunnelId), |
| 1066 | (objective, error) -> log.warn("Failed to populate filterObj for " + |
| 1067 | "tunnel {}", tunnelId, error)); |
| 1068 | objectives.add(filtBuilder.add(context)); |
| 1069 | |
| 1070 | for (Objective objective : objectives) { |
| 1071 | if (objective instanceof ForwardingObjective) { |
| 1072 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 1073 | log.debug("Creating new FwdObj for initiation NextObj with id={} for tunnel {}", nextId, tunnelId); |
| 1074 | } else { |
| 1075 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 1076 | log.debug("Creating new FiltObj for tunnel {}", tunnelId); |
| 1077 | } |
| 1078 | } |
| 1079 | return SUCCESS; |
| 1080 | } |
| 1081 | |
| 1082 | /** |
| 1083 | * Handles the tunnel establishment which consists in |
| 1084 | * create the next objectives related to the initiation. |
| 1085 | * |
| 1086 | * @param l2Tunnel the tunnel to deploy |
| 1087 | * @param ingress the ingress connect point |
| 1088 | * @param egress the egress connect point |
| 1089 | * @param direction the direction of the pw |
| 1090 | * @param spinePw if the pseudowire involves a spine switch |
| 1091 | * @return the result of the operation |
| 1092 | */ |
| 1093 | private Result deployPseudoWireInit(L2Tunnel l2Tunnel, ConnectPoint ingress, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1094 | ConnectPoint egress, Direction direction, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1095 | Link nextHop, boolean spinePw, boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1096 | |
| 1097 | if (nextHop == null) { |
| 1098 | log.warn("No path between ingress and egress cps for tunnel {}", l2Tunnel.tunnelId()); |
| 1099 | return WRONG_PARAMETERS; |
| 1100 | } |
| 1101 | |
| 1102 | // We create the next objective without the metadata |
| 1103 | // context and id. We check if it already exists in the |
| 1104 | // store. If not we store as it is in the store. |
| 1105 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(INITIATION, |
| 1106 | nextHop.src(), |
| 1107 | nextHop.dst(), |
| 1108 | l2Tunnel, |
| 1109 | egress.deviceId(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1110 | spinePw, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1111 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1112 | termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1113 | |
| 1114 | if (nextObjectiveBuilder == null) { |
| 1115 | return INTERNAL_ERROR; |
| 1116 | } |
| 1117 | // We set the metadata. We will use this metadata |
| 1118 | // to inform the driver we are doing a l2 tunnel. |
| 1119 | TrafficSelector metadata = DefaultTrafficSelector |
| 1120 | .builder() |
| 1121 | .matchTunnelId(l2Tunnel.tunnelId()) |
| 1122 | .build(); |
| 1123 | nextObjectiveBuilder.withMeta(metadata); |
| 1124 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 1125 | if (nextId < 0) { |
| 1126 | log.warn("Not able to allocate a next id for initiation"); |
| 1127 | return INTERNAL_ERROR; |
| 1128 | } |
| 1129 | nextObjectiveBuilder.withId(nextId); |
| 1130 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1131 | l2InitiationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 1132 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1133 | log.debug("Initiation l2 tunnel rule " + |
| 1134 | "for {} populated", |
| 1135 | l2Tunnel.tunnelId()), |
| 1136 | (objective, error) -> |
| 1137 | log.warn("Failed to populate Initiation " + |
| 1138 | "l2 tunnel rule for {}: {}", |
| 1139 | l2Tunnel.tunnelId(), error)); |
| 1140 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 1141 | srManager.flowObjectiveService.next(ingress.deviceId(), nextObjective); |
| 1142 | log.debug("Initiation next objective for {} not found. Creating new NextObj with id={}", |
| 1143 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 1144 | Result result = SUCCESS; |
| 1145 | result.nextId = nextObjective.id(); |
| 1146 | return result; |
| 1147 | } |
| 1148 | |
| 1149 | /** |
| 1150 | * Handles the tunnel termination, which consists in the creation |
| 1151 | * of a forwarding objective and a next objective. |
| 1152 | * |
| 1153 | * @param l2Tunnel the tunnel to terminate |
| 1154 | * @param egress the egress point |
| 1155 | * @param egressVlan the expected vlan at egress |
| 1156 | * @param direction the direction |
| 1157 | * @param spinePw if the pseudowire involves a spine switch |
| 1158 | * @return the result of the operation |
| 1159 | */ |
| 1160 | private Result deployPseudoWireTerm(L2Tunnel l2Tunnel, ConnectPoint egress, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1161 | VlanId egressVlan, Direction direction, boolean spinePw, boolean oneHop) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1162 | |
| 1163 | // We create the group relative to the termination. |
| 1164 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(TERMINATION, egress, null, |
| 1165 | l2Tunnel, egress.deviceId(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1166 | spinePw, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1167 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1168 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1169 | if (nextObjectiveBuilder == null) { |
| 1170 | return INTERNAL_ERROR; |
| 1171 | } |
| 1172 | TrafficSelector metadata = DefaultTrafficSelector |
| 1173 | .builder() |
| 1174 | .matchVlanId(egressVlan) |
| 1175 | .build(); |
| 1176 | nextObjectiveBuilder.withMeta(metadata); |
| 1177 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 1178 | if (nextId < 0) { |
| 1179 | log.warn("Not able to allocate a next id for initiation"); |
| 1180 | return INTERNAL_ERROR; |
| 1181 | } |
| 1182 | nextObjectiveBuilder.withId(nextId); |
| 1183 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1184 | l2TerminationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 1185 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> log.debug("Termination l2 tunnel rule " + |
| 1186 | "for {} populated", |
| 1187 | l2Tunnel.tunnelId()), |
| 1188 | (objective, error) -> log.warn("Failed to populate " + |
| 1189 | "termination l2 tunnel " + |
| 1190 | "rule for {}: {}", |
| 1191 | l2Tunnel.tunnelId(), |
| 1192 | error)); |
| 1193 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 1194 | srManager.flowObjectiveService.next(egress.deviceId(), nextObjective); |
| 1195 | log.debug("Termination next objective for {} not found. Creating new NextObj with id={}", |
| 1196 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 1197 | |
| 1198 | // We create the flow relative to the termination. |
| 1199 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), l2Tunnel.tunnelId(), |
| 1200 | egress.port(), nextObjective.id()); |
| 1201 | context = new DefaultObjectiveContext((objective) -> log.debug("FwdObj for tunnel termination {} populated", |
| 1202 | l2Tunnel.tunnelId()), |
| 1203 | (objective, error) -> log.warn("Failed to populate fwdrObj" + |
| 1204 | " for tunnel termination {}", |
| 1205 | l2Tunnel.tunnelId(), error)); |
| 1206 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.add(context)); |
| 1207 | log.debug("Creating new FwdObj for termination NextObj with id={} for tunnel {}", |
| 1208 | nextId, l2Tunnel.tunnelId()); |
| 1209 | |
| 1210 | if (spinePw) { |
| 1211 | |
| 1212 | // determine the input port at the |
| 1213 | PortNumber inPort; |
| 1214 | |
| 1215 | if (egress.deviceId(). |
| 1216 | equals(l2Tunnel.pathUsed().get(0).dst().deviceId())) { |
| 1217 | inPort = l2Tunnel.pathUsed().get(0).dst().port(); |
| 1218 | } else { |
| 1219 | inPort = l2Tunnel.pathUsed().get(0).src().port(); |
| 1220 | } |
| 1221 | |
| 1222 | MacAddress dstMac; |
| 1223 | try { |
| 1224 | dstMac = srManager.deviceConfiguration().getDeviceMac(egress.deviceId()); |
| 1225 | } catch (Exception e) { |
| 1226 | log.info("Device not found in configuration, no programming of MAC address"); |
| 1227 | dstMac = null; |
| 1228 | } |
| 1229 | |
| 1230 | log.info("Populating filtering objective for pseudowire transport" + |
| 1231 | " with vlan = {}, port = {}, mac = {}", |
| 1232 | l2Tunnel.transportVlan(), |
| 1233 | inPort, |
| 1234 | dstMac); |
| 1235 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 1236 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 1237 | context = new DefaultObjectiveContext(( objective ) -> |
| 1238 | log.debug("Special filtObj for " + "for {} populated", |
| 1239 | l2Tunnel.tunnelId()), |
| 1240 | ( objective, error ) -> |
| 1241 | log.warn("Failed to populate " + |
| 1242 | "special filtObj " + |
| 1243 | "rule for {}: {}", |
| 1244 | l2Tunnel.tunnelId(), error)); |
| 1245 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 1246 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 1247 | srManager.flowObjectiveService.filter(egress.deviceId(), filteringObjectiveBuilder.add(context)); |
| 1248 | log.debug("Creating new special FiltObj for termination point with tunnel {} for port {}", |
| 1249 | l2Tunnel.tunnelId(), |
| 1250 | inPort); |
| 1251 | } |
| 1252 | |
| 1253 | return SUCCESS; |
| 1254 | } |
| 1255 | |
| 1256 | |
| 1257 | /** |
| 1258 | * Creates the filtering objective according to a given port and vlanid. |
| 1259 | * |
| 1260 | * @param inPort the in port |
| 1261 | * @param vlanId the inner vlan tag |
| 1262 | * @return the filtering objective |
| 1263 | */ |
| 1264 | private FilteringObjective.Builder createNormalPipelineFiltObjective(PortNumber inPort, |
| 1265 | VlanId vlanId, |
| 1266 | MacAddress dstMac) { |
| 1267 | |
| 1268 | log.info("Creating filtering objective for pseudowire transport with vlan={}, port={}, mac={}", |
| 1269 | vlanId, |
| 1270 | inPort, |
| 1271 | dstMac); |
| 1272 | FilteringObjective.Builder fwdBuilder = DefaultFilteringObjective |
| 1273 | .builder() |
| 1274 | .withKey(Criteria.matchInPort(inPort)) |
| 1275 | .addCondition(Criteria.matchVlanId(vlanId)) |
| 1276 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1277 | .permit() |
| 1278 | .fromApp(srManager.appId()); |
| 1279 | |
| 1280 | if (dstMac != null) { |
| 1281 | fwdBuilder.addCondition(Criteria.matchEthDst(dstMac)); |
| 1282 | } |
| 1283 | |
| 1284 | return fwdBuilder; |
| 1285 | } |
| 1286 | |
| 1287 | /** |
| 1288 | * Creates the filtering objective according to a given policy. |
| 1289 | * |
| 1290 | * @param inPort the in port |
| 1291 | * @param innerTag the inner vlan tag |
| 1292 | * @param outerTag the outer vlan tag |
| 1293 | * @return the filtering objective |
| 1294 | */ |
| 1295 | private FilteringObjective.Builder createFiltObjective(PortNumber inPort, VlanId innerTag, VlanId outerTag) { |
| 1296 | |
| 1297 | log.info("Creating filtering objective for vlans {} / {}", outerTag, innerTag); |
| 1298 | return DefaultFilteringObjective |
| 1299 | .builder() |
| 1300 | .withKey(Criteria.matchInPort(inPort)) |
| 1301 | .addCondition(Criteria.matchInnerVlanId(innerTag)) |
| 1302 | .addCondition(Criteria.matchVlanId(outerTag)) |
| 1303 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1304 | .permit() |
| 1305 | .fromApp(srManager.appId()); |
| 1306 | } |
| 1307 | |
| 1308 | /** |
| 1309 | * Creates the forwarding objective for the termination. |
| 1310 | * |
| 1311 | * @param pwLabel the pseudo wire label |
| 1312 | * @param tunnelId the tunnel id |
| 1313 | * @param egressPort the egress port |
| 1314 | * @param nextId the next step |
| 1315 | * @return the forwarding objective to support the termination |
| 1316 | */ |
| 1317 | private ForwardingObjective.Builder createTermFwdObjective(MplsLabel pwLabel, long tunnelId, |
| 1318 | PortNumber egressPort, int nextId) { |
| 1319 | |
| 1320 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1321 | TrafficTreatment.Builder trafficTreatment = DefaultTrafficTreatment.builder(); |
| 1322 | // The flow has to match on the pw label and bos |
| 1323 | trafficSelector.matchEthType(Ethernet.MPLS_UNICAST); |
| 1324 | trafficSelector.matchMplsLabel(pwLabel); |
| 1325 | trafficSelector.matchMplsBos(true); |
| 1326 | // The flow has to decrement ttl, restore ttl in |
| 1327 | // pop mpls, set tunnel id and port. |
| 1328 | trafficTreatment.decMplsTtl(); |
| 1329 | trafficTreatment.copyTtlIn(); |
| 1330 | trafficTreatment.popMpls(); |
| 1331 | trafficTreatment.setTunnelId(tunnelId); |
| 1332 | trafficTreatment.setOutput(egressPort); |
| 1333 | |
| 1334 | return DefaultForwardingObjective |
| 1335 | .builder() |
| 1336 | .fromApp(srManager.appId()) |
| 1337 | .makePermanent() |
| 1338 | .nextStep(nextId) |
| 1339 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1340 | .withSelector(trafficSelector.build()) |
| 1341 | .withTreatment(trafficTreatment.build()) |
| 1342 | .withFlag(VERSATILE); |
| 1343 | } |
| 1344 | |
| 1345 | /** |
| 1346 | * Creates the forwarding objective for the initiation. |
| 1347 | * |
| 1348 | * @param tunnelId the tunnel id |
| 1349 | * @param inPort the input port |
| 1350 | * @param nextId the next step |
| 1351 | * @return the forwarding objective to support the initiation. |
| 1352 | */ |
| 1353 | private ForwardingObjective.Builder createInitFwdObjective(long tunnelId, PortNumber inPort, int nextId) { |
| 1354 | |
| 1355 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1356 | |
| 1357 | // The flow has to match on the mpls logical |
| 1358 | // port and the tunnel id. |
| 1359 | trafficSelector.matchTunnelId(tunnelId); |
| 1360 | trafficSelector.matchInPort(inPort); |
| 1361 | |
| 1362 | return DefaultForwardingObjective |
| 1363 | .builder() |
| 1364 | .fromApp(srManager.appId()) |
| 1365 | .makePermanent() |
| 1366 | .nextStep(nextId) |
| 1367 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1368 | .withSelector(trafficSelector.build()) |
| 1369 | .withFlag(VERSATILE); |
| 1370 | |
| 1371 | } |
| 1372 | |
| 1373 | /** |
| 1374 | * Creates the next objective according to a given |
| 1375 | * pipeline. We don't set the next id and we don't |
| 1376 | * create the final meta to check if we are re-using |
| 1377 | * the same next objective for different tunnels. |
| 1378 | * |
| 1379 | * @param pipeline the pipeline to support |
| 1380 | * @param srcCp the source port |
| 1381 | * @param dstCp the destination port |
| 1382 | * @param l2Tunnel the tunnel to support |
| 1383 | * @param egressId the egress device id |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1384 | * @param oneHop if the pw only has one hop, push only pw label |
| 1385 | * @param leafSpinePw true if we want instantiate a leaf-spine or leaf-spine-spine pw |
| 1386 | * @param termVlanId the outer vlan id of the packet exiting a termination point |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1387 | * @return the next objective to support the pipeline |
| 1388 | */ |
| 1389 | private NextObjective.Builder createNextObjective(Pipeline pipeline, ConnectPoint srcCp, |
| 1390 | ConnectPoint dstCp, L2Tunnel l2Tunnel, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1391 | DeviceId egressId, boolean leafSpinePw, |
| 1392 | boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1393 | NextObjective.Builder nextObjBuilder; |
| 1394 | TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); |
| 1395 | if (pipeline == INITIATION) { |
| 1396 | nextObjBuilder = DefaultNextObjective |
| 1397 | .builder() |
| 1398 | .withType(NextObjective.Type.SIMPLE) |
| 1399 | .fromApp(srManager.appId()); |
| 1400 | // The pw label is the bottom of stack. It has to |
| 1401 | // be different -1. |
| 1402 | if (l2Tunnel.pwLabel().toInt() == MplsLabel.MAX_MPLS) { |
| 1403 | log.warn("Pw label not configured"); |
| 1404 | return null; |
| 1405 | } |
| 1406 | treatmentBuilder.pushMpls(); |
| 1407 | treatmentBuilder.setMpls(l2Tunnel.pwLabel()); |
| 1408 | treatmentBuilder.setMplsBos(true); |
| 1409 | treatmentBuilder.copyTtlOut(); |
| 1410 | |
| 1411 | // If the inter-co label is present we have to set the label. |
| 1412 | if (l2Tunnel.interCoLabel().toInt() != MplsLabel.MAX_MPLS) { |
| 1413 | treatmentBuilder.pushMpls(); |
| 1414 | treatmentBuilder.setMpls(l2Tunnel.interCoLabel()); |
| 1415 | treatmentBuilder.setMplsBos(false); |
| 1416 | treatmentBuilder.copyTtlOut(); |
| 1417 | } |
| 1418 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1419 | // if not oneHop install transit mpls labels also |
| 1420 | if (!oneHop) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1421 | // We retrieve the sr label from the config |
| 1422 | // specific for pseudowire traffic |
| 1423 | // using the egress leaf device id. |
| 1424 | MplsLabel srLabel; |
| 1425 | try { |
| 1426 | srLabel = MplsLabel.mplsLabel(srManager.deviceConfiguration().getPWRoutingLabel(egressId)); |
| 1427 | |
| 1428 | } catch (DeviceConfigNotFoundException e) { |
| 1429 | log.warn("Sr label for pw traffic not configured"); |
| 1430 | return null; |
| 1431 | } |
| 1432 | |
| 1433 | treatmentBuilder.pushMpls(); |
| 1434 | treatmentBuilder.setMpls(srLabel); |
| 1435 | treatmentBuilder.setMplsBos(false); |
| 1436 | treatmentBuilder.copyTtlOut(); |
| 1437 | } |
| 1438 | |
| 1439 | // We have to rewrite the src and dst mac address. |
| 1440 | MacAddress ingressMac; |
| 1441 | try { |
| 1442 | ingressMac = srManager.deviceConfiguration().getDeviceMac(srcCp.deviceId()); |
| 1443 | } catch (DeviceConfigNotFoundException e) { |
| 1444 | log.warn("Was not able to find the ingress mac"); |
| 1445 | return null; |
| 1446 | } |
| 1447 | treatmentBuilder.setEthSrc(ingressMac); |
| 1448 | MacAddress neighborMac; |
| 1449 | try { |
| 1450 | neighborMac = srManager.deviceConfiguration().getDeviceMac(dstCp.deviceId()); |
| 1451 | } catch (DeviceConfigNotFoundException e) { |
| 1452 | log.warn("Was not able to find the neighbor mac"); |
| 1453 | return null; |
| 1454 | } |
| 1455 | treatmentBuilder.setEthDst(neighborMac); |
| 1456 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1457 | // if true we need to pop the vlan because |
| 1458 | // we instantiate a leaf to leaf pseudowire |
| 1459 | if (!leafSpinePw) { |
| 1460 | log.info("We should carry this traffic UNTAGGED!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1461 | treatmentBuilder.popVlan(); |
| 1462 | } |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1463 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame^] | 1464 | // set the appropriate transport vlan from tunnel information |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1465 | treatmentBuilder.setVlanId(l2Tunnel.transportVlan()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1466 | } else { |
| 1467 | // We create the next objective which |
| 1468 | // will be a simple l2 group. |
| 1469 | nextObjBuilder = DefaultNextObjective |
| 1470 | .builder() |
| 1471 | .withType(NextObjective.Type.SIMPLE) |
| 1472 | .fromApp(srManager.appId()); |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1473 | |
| 1474 | // for termination point we use the outer vlan of the |
| 1475 | // encapsulated packet |
| 1476 | treatmentBuilder.setVlanId(termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1477 | } |
| 1478 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1479 | treatmentBuilder.setOutput(srcCp.port()); |
| 1480 | nextObjBuilder.addTreatment(treatmentBuilder.build()); |
| 1481 | return nextObjBuilder; |
| 1482 | } |
| 1483 | |
| 1484 | /** |
| 1485 | * Reverses a link. |
| 1486 | * |
| 1487 | * @param link link to be reversed |
| 1488 | * @return the reversed link |
| 1489 | */ |
| 1490 | private Link reverseLink(Link link) { |
| 1491 | |
| 1492 | DefaultLink.Builder linkBuilder = DefaultLink.builder(); |
| 1493 | |
| 1494 | linkBuilder.src(link.dst()); |
| 1495 | linkBuilder.dst(link.src()); |
| 1496 | linkBuilder.type(link.type()); |
| 1497 | linkBuilder.providerId(link.providerId()); |
| 1498 | |
| 1499 | return linkBuilder.build(); |
| 1500 | } |
| 1501 | |
| 1502 | /** |
| 1503 | * Returns the path betwwen two connect points. |
| 1504 | * |
| 1505 | * @param srcCp source connect point |
| 1506 | * @param dstCp destination connect point |
| 1507 | * @return the path |
| 1508 | */ |
| 1509 | private List<Link> getPath(ConnectPoint srcCp, ConnectPoint dstCp) { |
| 1510 | /* TODO We retrieve a set of paths in case of a link failure, what happens |
| 1511 | * if the TopologyService gets the link notification AFTER us and has not updated the paths? |
| 1512 | * |
| 1513 | * TODO This has the potential to act on old topology. |
| 1514 | * Maybe we should make SRManager be a listener on topology events instead raw link events. |
| 1515 | */ |
| 1516 | Set<Path> paths = srManager.topologyService.getPaths( |
| 1517 | srManager.topologyService.currentTopology(), |
| 1518 | srcCp.deviceId(), dstCp.deviceId()); |
| 1519 | |
| 1520 | log.debug("Paths obtained from topology service {}", paths); |
| 1521 | |
| 1522 | // We randomly pick a path. |
| 1523 | if (paths.isEmpty()) { |
| 1524 | return null; |
| 1525 | } |
| 1526 | int size = paths.size(); |
| 1527 | int index = RandomUtils.nextInt(0, size); |
| 1528 | |
| 1529 | List<Link> result = Iterables.get(paths, index).links(); |
| 1530 | log.debug("Randomly picked a path {}", result); |
| 1531 | |
| 1532 | return result; |
| 1533 | } |
| 1534 | |
| 1535 | /** |
| 1536 | * Deletes a given policy using the parameter supplied. |
| 1537 | * |
| 1538 | * @param tunnelId the tunnel id |
| 1539 | * @param ingress the ingress point |
| 1540 | * @param ingressInner the ingress inner vlan id |
| 1541 | * @param ingressOuter the ingress outer vlan id |
| 1542 | * @param future to perform the async operation |
| 1543 | * @param direction the direction: forward or reverse |
| 1544 | */ |
| 1545 | private void deletePolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, VlanId ingressOuter, |
| 1546 | VlanId egressVlan, CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1547 | |
| 1548 | String key = generateKey(tunnelId, direction); |
| 1549 | if (!l2InitiationNextObjStore.containsKey(key)) { |
| 1550 | log.warn("Abort delete of policy for tunnel {}: next does not exist in the store", tunnelId); |
| 1551 | if (future != null) { |
| 1552 | future.complete(null); |
| 1553 | } |
| 1554 | return; |
| 1555 | } |
| 1556 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
| 1557 | int nextId = nextObjective.id(); |
| 1558 | List<Objective> objectives = Lists.newArrayList(); |
| 1559 | // We create the forwarding objective. |
| 1560 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 1561 | ObjectiveContext context = new ObjectiveContext() { |
| 1562 | @Override |
| 1563 | public void onSuccess(Objective objective) { |
| 1564 | log.debug("Previous fwdObj for policy {} removed", tunnelId); |
| 1565 | if (future != null) { |
| 1566 | future.complete(null); |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | @Override |
| 1571 | public void onError(Objective objective, ObjectiveError error) { |
| 1572 | log.warn("Failed to remove previous fwdObj for policy {}: {}", tunnelId, error); |
| 1573 | if (future != null) { |
| 1574 | future.complete(error); |
| 1575 | } |
| 1576 | } |
| 1577 | }; |
| 1578 | objectives.add(fwdBuilder.remove(context)); |
| 1579 | // We create the filtering objective to define the |
| 1580 | // permit traffic in the switch |
| 1581 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 1582 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 1583 | .builder() |
| 1584 | .setTunnelId(tunnelId) |
| 1585 | .setVlanId(egressVlan); |
| 1586 | filtBuilder.withMeta(treatment.build()); |
| 1587 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for policy {} revoked", tunnelId), |
| 1588 | (objective, error) -> |
| 1589 | log.warn("Failed to revoke filterObj for policy {}", |
| 1590 | tunnelId, error)); |
| 1591 | objectives.add(filtBuilder.remove(context)); |
| 1592 | |
| 1593 | for (Objective objective : objectives) { |
| 1594 | if (objective instanceof ForwardingObjective) { |
| 1595 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 1596 | } else { |
| 1597 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 1598 | } |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * Deletes the pseudo wire initiation. |
| 1604 | * |
| 1605 | * @param l2TunnelId the tunnel id |
| 1606 | * @param ingress the ingress connect point |
| 1607 | * @param future to perform an async operation |
| 1608 | * @param direction the direction: reverse of forward |
| 1609 | */ |
| 1610 | private void tearDownPseudoWireInit(long l2TunnelId, ConnectPoint ingress, |
| 1611 | CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1612 | |
| 1613 | String key = generateKey(l2TunnelId, direction); |
| 1614 | if (!l2InitiationNextObjStore.containsKey(key)) { |
| 1615 | log.info("Abort delete of {} for {}: next does not exist in the store", INITIATION, key); |
| 1616 | if (future != null) { |
| 1617 | future.complete(null); |
| 1618 | } |
| 1619 | return; |
| 1620 | } |
| 1621 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
| 1622 | |
| 1623 | // un-comment in case you want to delete groups used by the pw |
| 1624 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1625 | // not be deleted (it is referenced by other groups) |
| 1626 | /* |
| 1627 | ObjectiveContext context = new ObjectiveContext() { |
| 1628 | @Override |
| 1629 | public void onSuccess(Objective objective) { |
| 1630 | log.debug("Previous {} next for {} removed", INITIATION, key); |
| 1631 | if (future != null) { |
| 1632 | future.complete(null); |
| 1633 | } |
| 1634 | } |
| 1635 | |
| 1636 | @Override |
| 1637 | public void onError(Objective objective, ObjectiveError error) { |
| 1638 | log.warn("Failed to remove previous {} next for {}: {}", INITIATION, key, error); |
| 1639 | if (future != null) { |
| 1640 | future.complete(error); |
| 1641 | } |
| 1642 | } |
| 1643 | }; |
| 1644 | srManager.flowObjectiveService.next(ingress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1645 | */ |
| 1646 | |
| 1647 | future.complete(null); |
| 1648 | l2InitiationNextObjStore.remove(key); |
| 1649 | } |
| 1650 | |
| 1651 | /** |
| 1652 | * Deletes the pseudo wire termination. |
| 1653 | * |
| 1654 | * @param l2Tunnel the tunnel |
| 1655 | * @param egress the egress connect point |
| 1656 | * @param future the async task |
| 1657 | * @param direction the direction of the tunnel |
| 1658 | */ |
| 1659 | private void tearDownPseudoWireTerm(L2Tunnel l2Tunnel, |
| 1660 | ConnectPoint egress, |
| 1661 | CompletableFuture<ObjectiveError> future, |
| 1662 | Direction direction) { |
| 1663 | |
| 1664 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1665 | if (!l2TerminationNextObjStore.containsKey(key)) { |
| 1666 | log.info("Abort delete of {} for {}: next does not exist in the store", TERMINATION, key); |
| 1667 | if (future != null) { |
| 1668 | future.complete(null); |
| 1669 | } |
| 1670 | return; |
| 1671 | } |
| 1672 | NextObjective nextObjective = l2TerminationNextObjStore.get(key).value(); |
| 1673 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), |
| 1674 | l2Tunnel.tunnelId(), |
| 1675 | egress.port(), |
| 1676 | nextObjective.id()); |
| 1677 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1678 | log.debug("FwdObj for {} {}, " + |
| 1679 | "direction {} removed", |
| 1680 | TERMINATION, |
| 1681 | l2Tunnel.tunnelId(), |
| 1682 | direction), |
| 1683 | (objective, error) -> |
| 1684 | log.warn("Failed to remove fwdObj " + |
| 1685 | "for {} {}" + |
| 1686 | ", direction {}", |
| 1687 | TERMINATION, |
| 1688 | l2Tunnel.tunnelId(), |
| 1689 | error, |
| 1690 | direction)); |
| 1691 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.remove(context)); |
| 1692 | |
| 1693 | // un-comment in case you want to delete groups used by the pw |
| 1694 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1695 | // not be deleted (it is referenced by other groups) |
| 1696 | /* |
| 1697 | context = new ObjectiveContext() { |
| 1698 | @Override |
| 1699 | public void onSuccess(Objective objective) { |
| 1700 | log.debug("Previous {} next for {} removed", TERMINATION, key); |
| 1701 | if (future != null) { |
| 1702 | future.complete(null); |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | @Override |
| 1707 | public void onError(Objective objective, ObjectiveError error) { |
| 1708 | log.warn("Failed to remove previous {} next for {}: {}", TERMINATION, key, error); |
| 1709 | if (future != null) { |
| 1710 | future.complete(error); |
| 1711 | } |
| 1712 | } |
| 1713 | }; |
| 1714 | srManager.flowObjectiveService.next(egress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1715 | */ |
| 1716 | |
| 1717 | // delete the extra filtering objective for terminating |
| 1718 | // spine-spine pws |
| 1719 | if (!l2Tunnel.transportVlan().equals(UNTAGGED_TRANSPORT_VLAN)) { |
| 1720 | |
| 1721 | // determine the input port at the |
| 1722 | PortNumber inPort; |
| 1723 | |
| 1724 | if (egress.deviceId(). |
| 1725 | equals(l2Tunnel.pathUsed().get(0).dst().deviceId())) { |
| 1726 | inPort = l2Tunnel.pathUsed().get(0).dst().port(); |
| 1727 | } else { |
| 1728 | inPort = l2Tunnel.pathUsed().get(0).src().port(); |
| 1729 | } |
| 1730 | |
| 1731 | MacAddress dstMac; |
| 1732 | try { |
| 1733 | dstMac = srManager.deviceConfiguration().getDeviceMac(egress.deviceId()); |
| 1734 | } catch (Exception e) { |
| 1735 | log.info("Device not found in configuration, no programming of MAC address"); |
| 1736 | dstMac = null; |
| 1737 | } |
| 1738 | |
| 1739 | log.info("Removing filtering objective for pseudowire transport" + |
| 1740 | " with vlan = {}, port = {}, mac = {}", |
| 1741 | l2Tunnel.transportVlan(), |
| 1742 | inPort, |
| 1743 | dstMac); |
| 1744 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 1745 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 1746 | context = new DefaultObjectiveContext(( objective ) -> |
| 1747 | log.debug("Special filtObj for " + "for {} removed", |
| 1748 | l2Tunnel.tunnelId()), ( objective, error ) -> |
| 1749 | log.warn("Failed to populate " + "special filtObj " + |
| 1750 | "rule for {}: {}", l2Tunnel.tunnelId(), error)); |
| 1751 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 1752 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 1753 | srManager.flowObjectiveService.filter(egress.deviceId(), filteringObjectiveBuilder.remove(context)); |
| 1754 | log.debug("Removing special FiltObj for termination point with tunnel {} for port {}", |
| 1755 | l2Tunnel.tunnelId(), |
| 1756 | inPort); |
| 1757 | } |
| 1758 | |
| 1759 | l2TerminationNextObjStore.remove(key); |
| 1760 | future.complete(null); |
| 1761 | } |
| 1762 | |
| 1763 | /** |
| 1764 | * Utilities to generate pw key. |
| 1765 | * |
| 1766 | * @param tunnelId the tunnel id |
| 1767 | * @param direction the direction of the pw |
| 1768 | * @return the key of the store |
| 1769 | */ |
| 1770 | private String generateKey(long tunnelId, Direction direction) { |
| 1771 | return String.format("%s-%s", tunnelId, direction); |
| 1772 | } |
| 1773 | |
| 1774 | } |