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; |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 48 | import org.onosproject.net.topology.LinkWeigher; |
| 49 | import org.onosproject.segmentrouting.SRLinkWeigher; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 50 | import org.onosproject.segmentrouting.SegmentRoutingManager; |
| 51 | import org.onosproject.segmentrouting.SegmentRoutingService; |
| 52 | import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 53 | import org.onosproject.store.serializers.KryoNamespaces; |
| 54 | import org.onosproject.store.service.ConsistentMap; |
| 55 | import org.onosproject.store.service.DistributedSet; |
| 56 | import org.onosproject.store.service.Serializer; |
| 57 | import org.onosproject.store.service.Versioned; |
| 58 | import org.slf4j.Logger; |
| 59 | import org.slf4j.LoggerFactory; |
| 60 | |
| 61 | import java.util.ArrayList; |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 62 | import java.util.HashSet; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 63 | import java.util.List; |
| 64 | import java.util.Set; |
| 65 | import java.util.concurrent.CompletableFuture; |
| 66 | import java.util.stream.Collectors; |
| 67 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 68 | import static org.onosproject.net.flowobjective.ForwardingObjective.Flag.VERSATILE; |
| 69 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.INITIATION; |
| 70 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.TERMINATION; |
| 71 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Result.*; |
| 72 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.FWD; |
| 73 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.REV; |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 74 | import static org.onosproject.segmentrouting.pwaas.PwaasUtil.*; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 75 | |
| 76 | /** |
| 77 | * Handles pwaas related events. |
| 78 | */ |
| 79 | public class DefaultL2TunnelHandler implements L2TunnelHandler { |
| 80 | |
| 81 | private static final Logger log = LoggerFactory.getLogger(DefaultL2TunnelHandler.class); |
| 82 | |
| 83 | private final SegmentRoutingManager srManager; |
| 84 | /** |
| 85 | * To store the next objectives related to the initiation. |
| 86 | */ |
| 87 | private final ConsistentMap<String, NextObjective> l2InitiationNextObjStore; |
| 88 | /** |
| 89 | * To store the next objectives related to the termination. |
| 90 | */ |
| 91 | private final ConsistentMap<String, NextObjective> l2TerminationNextObjStore; |
| 92 | |
| 93 | /** |
| 94 | * To store policies. |
| 95 | */ |
| 96 | private final ConsistentMap<String, L2TunnelPolicy> l2PolicyStore; |
| 97 | |
| 98 | /** |
| 99 | * To store tunnels. |
| 100 | */ |
| 101 | private final ConsistentMap<String, L2Tunnel> l2TunnelStore; |
| 102 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 103 | /** |
| 104 | * To store pending tunnels that need to be installed. |
| 105 | */ |
| 106 | private final ConsistentMap<String, L2Tunnel> pendingL2TunnelStore; |
| 107 | |
| 108 | /** |
| 109 | * To store pending policies that need to be installed. |
| 110 | */ |
| 111 | private final ConsistentMap<String, L2TunnelPolicy> pendingL2PolicyStore; |
| 112 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 113 | private final KryoNamespace.Builder l2TunnelKryo; |
| 114 | |
| 115 | /** |
| 116 | * Contains transport vlans used for spine-leaf pseudowires. |
| 117 | */ |
| 118 | private final DistributedSet<VlanId> vlanStore; |
| 119 | |
| 120 | /** |
| 121 | * Used for determining transport vlans for leaf-spine. |
| 122 | */ |
| 123 | private short transportVlanUpper = 4093, transportVlanLower = 3500; |
| 124 | |
| 125 | private static final VlanId UNTAGGED_TRANSPORT_VLAN = VlanId.vlanId((short) 4094); |
| 126 | |
| 127 | /** |
| 128 | * Create a l2 tunnel handler for the deploy and |
| 129 | * for the tear down of pseudo wires. |
| 130 | * |
| 131 | * @param segmentRoutingManager the segment routing manager |
| 132 | */ |
| 133 | public DefaultL2TunnelHandler(SegmentRoutingManager segmentRoutingManager) { |
| 134 | srManager = segmentRoutingManager; |
| 135 | l2TunnelKryo = new KryoNamespace.Builder() |
| 136 | .register(KryoNamespaces.API) |
| 137 | .register(L2Tunnel.class, |
| 138 | L2TunnelPolicy.class, |
| 139 | DefaultL2Tunnel.class, |
| 140 | DefaultL2TunnelPolicy.class, |
| 141 | L2Mode.class, |
| 142 | MplsLabel.class, |
| 143 | VlanId.class, |
| 144 | ConnectPoint.class); |
| 145 | |
| 146 | l2InitiationNextObjStore = srManager. |
| 147 | storageService. |
| 148 | <String, NextObjective>consistentMapBuilder(). |
| 149 | withName("onos-l2initiation-nextobj-store"). |
| 150 | withSerializer(Serializer.using(l2TunnelKryo.build())). |
| 151 | build(); |
| 152 | |
| 153 | l2TerminationNextObjStore = srManager.storageService. |
| 154 | <String, NextObjective>consistentMapBuilder() |
| 155 | .withName("onos-l2termination-nextobj-store") |
| 156 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 157 | .build(); |
| 158 | |
| 159 | l2PolicyStore = srManager.storageService |
| 160 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 161 | .withName("onos-l2-policy-store") |
| 162 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 163 | .build(); |
| 164 | |
| 165 | l2TunnelStore = srManager.storageService |
| 166 | .<String, L2Tunnel>consistentMapBuilder() |
| 167 | .withName("onos-l2-tunnel-store") |
| 168 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 169 | .build(); |
| 170 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 171 | pendingL2PolicyStore = srManager.storageService |
| 172 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 173 | .withName("onos-l2-pending-policy-store") |
| 174 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 175 | .build(); |
| 176 | |
| 177 | pendingL2TunnelStore = srManager.storageService |
| 178 | .<String, L2Tunnel>consistentMapBuilder() |
| 179 | .withName("onos-l2-pending-tunnel-store") |
| 180 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 181 | .build(); |
| 182 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 183 | vlanStore = srManager.storageService.<VlanId>setBuilder() |
| 184 | .withName("onos-transport-vlan-store") |
| 185 | .withSerializer(Serializer.using( |
| 186 | new KryoNamespace.Builder() |
| 187 | .register(KryoNamespaces.API) |
| 188 | .build())) |
| 189 | .build() |
| 190 | .asDistributedSet(); |
| 191 | } |
| 192 | |
| 193 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 194 | * Used by manager only in initialization. |
| 195 | */ |
| 196 | @Override |
| 197 | public void init() { |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 198 | // Since we have no pseudowires in netcfg there |
| 199 | // is nothing to do in initialization. |
| 200 | // I leave it here because potentially we might need to |
| 201 | // use it in the future. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 202 | } |
| 203 | |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 204 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 205 | public Set<L2TunnelDescription> getL2Descriptions(boolean pending) { |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 206 | // get pending tunnels/policies OR installed tunnels/policies |
| 207 | List<L2Tunnel> tunnels = pending ? getL2PendingTunnels() : getL2Tunnels(); |
| 208 | List<L2TunnelPolicy> policies = pending ? getL2PendingPolicies() : getL2Policies(); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 209 | return tunnels.stream() |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 210 | .map(l2Tunnel -> { |
| 211 | L2TunnelPolicy policy = null; |
| 212 | for (L2TunnelPolicy l2Policy : policies) { |
| 213 | if (l2Policy.tunnelId() == l2Tunnel.tunnelId()) { |
| 214 | policy = l2Policy; |
| 215 | break; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | return new DefaultL2TunnelDescription(l2Tunnel, policy); |
| 220 | }) |
| 221 | .collect(Collectors.toSet()); |
| 222 | } |
| 223 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 224 | @Override |
| 225 | public List<L2TunnelPolicy> getL2Policies() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 226 | return new ArrayList<>(l2PolicyStore |
| 227 | .values() |
| 228 | .stream() |
| 229 | .map(Versioned::value) |
| 230 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 231 | } |
| 232 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 233 | @Override |
| 234 | public List<L2Tunnel> getL2Tunnels() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 235 | return new ArrayList<>(l2TunnelStore |
| 236 | .values() |
| 237 | .stream() |
| 238 | .map(Versioned::value) |
| 239 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 243 | public List<L2TunnelPolicy> getL2PendingPolicies() { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 244 | return new ArrayList<>(pendingL2PolicyStore |
| 245 | .values() |
| 246 | .stream() |
| 247 | .map(Versioned::value) |
| 248 | .collect(Collectors.toList())); |
| 249 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 250 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 251 | @Override |
| 252 | public List<L2Tunnel> getL2PendingTunnels() { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 253 | return new ArrayList<>(pendingL2TunnelStore |
| 254 | .values() |
| 255 | .stream() |
| 256 | .map(Versioned::value) |
| 257 | .collect(Collectors.toList())); |
| 258 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 259 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 260 | @Override |
| 261 | public Result verifyGlobalValidity(L2TunnelDescription pwToAdd) { |
| 262 | |
| 263 | // get both added and pending pseudowires |
| 264 | List<L2TunnelDescription> newPseudowires = new ArrayList<>(); |
| 265 | newPseudowires.addAll(getL2Descriptions(false)); |
| 266 | newPseudowires.addAll(getL2Descriptions(true)); |
| 267 | // add the new one |
| 268 | newPseudowires.add(pwToAdd); |
| 269 | |
| 270 | return configurationValidity(newPseudowires); |
| 271 | } |
| 272 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 273 | /** |
| 274 | * Manages intermediate filtering rules. |
| 275 | * |
| 276 | * For leaf-spine-spine pseudowires we need to install a special filtering |
| 277 | * rule in the intermediate spine for the appropriate transport vlan. |
| 278 | * |
| 279 | * @param pw The pseudowire, it will have the path and the transport vlan. |
| 280 | */ |
| 281 | private Result manageIntermediateFiltering(L2TunnelDescription pw, boolean leafSpinePw) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 282 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 283 | // only leaf-spine-spine should need intermediate rules for now |
| 284 | if (!leafSpinePw) { |
| 285 | return Result.SUCCESS; |
| 286 | } |
| 287 | if (pw.l2Tunnel().pathUsed().size() != 2) { |
| 288 | return Result.SUCCESS; |
| 289 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 290 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 291 | List<Link> path = pw.l2Tunnel().pathUsed(); |
| 292 | DeviceId intermediateSpineId = pw.l2Tunnel().pathUsed().get(0).dst().deviceId(); |
| 293 | L2Tunnel l2Tunnel = pw.l2Tunnel(); |
| 294 | |
| 295 | log.info("Installing intermediate filtering rules for spine {} , for pseudowire {}", |
| 296 | intermediateSpineId, pw.l2Tunnel().tunnelId()); |
| 297 | |
| 298 | MacAddress dstMac; |
| 299 | try { |
| 300 | dstMac = srManager.deviceConfiguration().getDeviceMac(intermediateSpineId); |
| 301 | } catch (Exception e) { |
| 302 | log.info("Device not found in configuration, no programming of MAC address"); |
| 303 | dstMac = null; |
| 304 | } |
| 305 | |
| 306 | PortNumber inPort; |
| 307 | |
| 308 | inPort = path.get(0).dst().port(); |
| 309 | |
| 310 | log.debug("Populating filtering objective for pseudowire transport" + |
| 311 | " with vlan = {}, port = {}, mac = {} for device {}", |
| 312 | l2Tunnel.transportVlan(), |
| 313 | inPort, |
| 314 | dstMac, |
| 315 | intermediateSpineId); |
| 316 | |
| 317 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 318 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 319 | DefaultObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 320 | log.debug("Special filtObj for " + |
| 321 | "for {} populated", |
| 322 | l2Tunnel.tunnelId()), |
| 323 | (objective, error) -> |
| 324 | log.warn("Failed to populate " + |
| 325 | "special filtObj " + |
| 326 | "rule for {}: {}", |
| 327 | l2Tunnel.tunnelId(), error)); |
| 328 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 329 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 330 | srManager.flowObjectiveService.filter(intermediateSpineId, filteringObjectiveBuilder.add(context)); |
| 331 | |
| 332 | inPort = path.get(1).src().port(); |
| 333 | |
| 334 | log.debug("Populating filtering objective for pseudowire transport" + |
| 335 | " with vlan = {}, port = {}, mac = {} for device {}", |
| 336 | l2Tunnel.transportVlan(), |
| 337 | inPort, |
| 338 | dstMac, |
| 339 | intermediateSpineId); |
| 340 | |
| 341 | filteringObjectiveBuilder = |
| 342 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
| 343 | context = new DefaultObjectiveContext((objective) -> |
| 344 | log.debug("Special filtObj for " + "for {} populated", |
| 345 | l2Tunnel.tunnelId()), |
| 346 | (objective, error) -> |
| 347 | log.warn("Failed to populate " + |
| 348 | "special filtObj " + |
| 349 | "rule for {}: {}", |
| 350 | l2Tunnel.tunnelId(), error)); |
| 351 | treatment = DefaultTrafficTreatment.builder(); |
| 352 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 353 | srManager.flowObjectiveService.filter(intermediateSpineId, filteringObjectiveBuilder.add(context)); |
| 354 | |
| 355 | return Result.SUCCESS; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 356 | } |
| 357 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 358 | /** |
| 359 | * Returns the new vlan id for an ingress point of a |
| 360 | * pseudowire. For double tagged, it is the outer, |
| 361 | * For single tagged it is the single tag, and for |
| 362 | * inner it is None. |
| 363 | * |
| 364 | * @param ingressOuter vlanid of ingress outer |
| 365 | * @param ingressInner vlanid of ingress inner |
| 366 | * @param egressOuter vlanid of egress outer |
| 367 | * @param egressInner vlanid of egress inner |
| 368 | * @return returns the vlan id which will be installed at vlan table 1. |
| 369 | */ |
| 370 | private VlanId determineEgressVlan(VlanId ingressOuter, VlanId ingressInner, |
| 371 | VlanId egressOuter, VlanId egressInner) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 372 | // validity of vlan combinations was checked at verifyPseudowire |
| 373 | if (!(ingressOuter.equals(VlanId.NONE))) { |
| 374 | return egressOuter; |
| 375 | } else if (!(ingressInner.equals(VlanId.NONE))) { |
| 376 | return egressInner; |
| 377 | } else { |
| 378 | return VlanId.vlanId("None"); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * Determines vlan used for transporting the pw traffic. |
| 384 | * |
| 385 | * Leaf-Leaf traffic is transferred untagged, thus we choose the UNTAGGED_TRANSPORT_VLAN |
| 386 | * and also make sure to add the popVlan instruction. |
| 387 | * For spine-leaf pws we choose the highest vlan value available from a certain range. |
| 388 | * |
| 389 | * @param spinePw if the pw is leaf-spine. |
| 390 | * @return The vlan id chossen to transport this pseudowire. If vlan is UNTAGGED_TRANSPORT_VLAN |
| 391 | * then the pw is transported untagged. |
| 392 | */ |
| 393 | private VlanId determineTransportVlan(boolean spinePw) { |
| 394 | |
| 395 | if (!spinePw) { |
| 396 | |
| 397 | log.info("Untagged transport with internal vlan {} for pseudowire!", UNTAGGED_TRANSPORT_VLAN); |
| 398 | return UNTAGGED_TRANSPORT_VLAN; |
| 399 | } else { |
| 400 | for (short i = transportVlanUpper; i > transportVlanLower; i--) { |
| 401 | |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 402 | VlanId vlanToUse = VlanId.vlanId(i); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 403 | if (!vlanStore.contains(vlanToUse)) { |
| 404 | |
| 405 | vlanStore.add(vlanToUse); |
| 406 | log.info("Transport vlan {} for pseudowire!", vlanToUse); |
| 407 | return vlanToUse; |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | log.info("No available transport vlan found, pseudowire traffic will be carried untagged " + |
| 412 | "with internal vlan {}!", UNTAGGED_TRANSPORT_VLAN); |
| 413 | return UNTAGGED_TRANSPORT_VLAN; |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | /** |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 418 | * Returns the devices existing on a given path. |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 419 | * |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 420 | * @param path The path to traverse. |
| 421 | * @return The devices on the path with the order they |
| 422 | * are traversed. |
| 423 | */ |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 424 | private List<DeviceId> getDevicesOnPath(List<Link> path) { |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 425 | |
| 426 | // iterate over links and get all devices in the order |
| 427 | // we find them |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 428 | List<DeviceId> deviceList = new ArrayList<>(); |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 429 | for (Link link : path) { |
| 430 | if (!deviceList.contains(link.src().deviceId())) { |
| 431 | deviceList.add(link.src().deviceId()); |
| 432 | } |
| 433 | if (!deviceList.contains(link.dst().deviceId())) { |
| 434 | deviceList.add(link.dst().deviceId()); |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | return deviceList; |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Returns true if path is valid according to the current logic. |
| 443 | * For example : leaf to spine pseudowires can be either leaf-spine or |
| 444 | * leaf-spine-spine. However, in the configuration we might specify spine device |
| 445 | * first which will result in spine-spine-leaf. If leafSpinePw == true we have one of these |
| 446 | * two cases and need to provision for them. |
| 447 | * |
| 448 | * If we have a leaf to leaf pseudowire then all the intermediate devices must |
| 449 | * be spines. However, in case of paired switches we can have two leafs interconnected |
| 450 | * with each other directly. |
| 451 | * |
| 452 | * @param path the chosen path |
| 453 | * @param leafSpinePw if it is a leaf to spine pseudowire |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 454 | * @return True if path size is valid, false otherwise. |
| 455 | */ |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 456 | private boolean isValidPath(List<Link> path, boolean leafSpinePw) { |
| 457 | |
| 458 | List<DeviceId> devices = getDevicesOnPath(path); |
| 459 | if (devices.size() < 2) { |
| 460 | log.error("Path size for pseudowire should be greater than 1!"); |
| 461 | return false; |
| 462 | } |
| 463 | |
| 464 | try { |
| 465 | if (leafSpinePw) { |
| 466 | // can either be leaf-spine-spine or leaf-spine |
| 467 | // first device is leaf, all other must be spines |
| 468 | log.debug("Devices on path are {} for leaf to spine pseudowire", devices); |
| 469 | // if first device is a leaf then all other must be spines |
| 470 | if (srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 471 | devices.remove(0); |
| 472 | for (DeviceId devId : devices) { |
| 473 | log.debug("Device {} should be a spine!", devId); |
| 474 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 475 | return false; |
| 476 | } |
| 477 | } |
| 478 | } else { |
| 479 | // if first device is spine, last device must be a leaf |
| 480 | // all other devices must be spines |
| 481 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 482 | return false; |
| 483 | } |
| 484 | devices.remove(devices.size() - 1); |
| 485 | for (DeviceId devId : devices) { |
| 486 | log.debug("Device {} should be a spine!", devId); |
| 487 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 488 | return false; |
| 489 | } |
| 490 | } |
| 491 | } |
| 492 | } else { |
| 493 | // can either be leaf-leaf (paired leafs) / leaf-spine-leaf |
| 494 | // or leaf-spine-spine-leaf |
| 495 | log.debug("Devices on path are {} for leaf to leaf pseudowire", devices); |
| 496 | // check first device, needs to be a leaf |
| 497 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 498 | return false; |
| 499 | } |
| 500 | // check last device, needs to be a leaf |
| 501 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 502 | return false; |
| 503 | } |
| 504 | // remove these devices, rest must all be spines |
| 505 | devices.remove(0); |
| 506 | devices.remove(devices.size() - 1); |
| 507 | for (DeviceId devId : devices) { |
| 508 | log.debug("Device {} should be a spine!", devId); |
| 509 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 510 | return false; |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | } |
| 515 | } catch (DeviceConfigNotFoundException e) { |
| 516 | log.error("Device not found in configuration : {}", e); |
| 517 | return false; |
| 518 | } |
| 519 | |
| 520 | return true; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 521 | } |
| 522 | |
| 523 | /** |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 524 | * Adds a single pseudowire. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 525 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 526 | * @param pw The pseudowire to deploy |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 527 | * @return result of pseudowire deployment |
| 528 | */ |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 529 | public Result deployPseudowire(L2TunnelDescription pw) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 530 | |
| 531 | Result result; |
| 532 | long l2TunnelId; |
| 533 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 534 | log.debug("Pseudowire with {} deployment started, check log for any errors in this process!", |
| 535 | pw.l2Tunnel().tunnelId()); |
| 536 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 537 | l2TunnelId = pw.l2Tunnel().tunnelId(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 538 | // The tunnel id cannot be 0. |
| 539 | if (l2TunnelId == 0) { |
| 540 | log.warn("Tunnel id id must be > 0"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 541 | return Result.WRONG_PARAMETERS |
| 542 | .appendError("Tunnel id id must be > 0"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 543 | } |
| 544 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 545 | result = verifyGlobalValidity(pw); |
| 546 | if (result != SUCCESS) { |
| 547 | log.error("Global validity for pseudowire {} is wrong!", l2TunnelId); |
| 548 | return result; |
| 549 | } |
| 550 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 551 | // leafSpinePw determines if this is a leaf-leaf |
| 552 | // or leaf-spine pseudowire |
| 553 | boolean leafSpinePw; |
| 554 | ConnectPoint cp1 = pw.l2TunnelPolicy().cP1(); |
| 555 | ConnectPoint cp2 = pw.l2TunnelPolicy().cP2(); |
| 556 | try { |
| 557 | // differentiate between leaf-leaf pseudowires and leaf-spine |
| 558 | if (!srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 559 | !srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 560 | log.error("Can not deploy pseudowire from spine to spine!"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 561 | return Result.WRONG_PARAMETERS |
| 562 | .appendError("Can not deploy pseudowire from spine to spine!"); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 563 | } else if (srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 564 | srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 565 | leafSpinePw = false; |
| 566 | } else { |
| 567 | leafSpinePw = true; |
| 568 | } |
| 569 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 570 | log.error("Device for pseudowire connection points does not exist in the configuration"); |
| 571 | return Result.INTERNAL_ERROR |
| 572 | .appendError("Device for pseudowire connection points does not exist in the configuration"); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 573 | } |
| 574 | |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 575 | // reverse the policy in order for leaf switch to be at CP1 |
| 576 | // this will help us for re-using SRLinkWeigher for computing valid paths |
| 577 | L2TunnelPolicy reversedPolicy = reverseL2TunnelPolicy(pw.l2TunnelPolicy()); |
| 578 | if (reversedPolicy == null) { |
| 579 | log.error("Error in reversing policy, device configuration was not found!"); |
| 580 | return INTERNAL_ERROR |
| 581 | .appendError("Device configuration not found when reversing the policy."); |
| 582 | } |
| 583 | pw.setL2TunnelPolicy(reversedPolicy); |
| 584 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 585 | // get path here, need to use the same for fwd and rev direction |
| 586 | List<Link> path = getPath(pw.l2TunnelPolicy().cP1(), |
| 587 | pw.l2TunnelPolicy().cP2()); |
| 588 | if (path == null) { |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 589 | log.error("Deploying process : No path between the connection points for pseudowire {}", l2TunnelId); |
| 590 | return PATH_NOT_FOUND.appendError("No path between the connection points for pseudowire!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 591 | } |
| 592 | |
| 593 | Link fwdNextHop; |
| 594 | Link revNextHop; |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 595 | if (!isValidPath(path, leafSpinePw)) { |
| 596 | log.error("Deploying process : Path for pseudowire {} is not valid", |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 597 | l2TunnelId); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 598 | return INTERNAL_ERROR.appendError("Internal error : path for pseudowire is not valid!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 599 | } |
| 600 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 601 | // oneHope flag is used to determine if we need to |
| 602 | // install transit mpls rules |
| 603 | boolean oneHop = true; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 604 | if (path.size() > 1) { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 605 | oneHop = false; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 606 | } |
| 607 | |
| 608 | fwdNextHop = path.get(0); |
| 609 | revNextHop = reverseLink(path.get(path.size() - 1)); |
| 610 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 611 | pw.l2Tunnel().setPath(path); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 612 | pw.l2Tunnel().setTransportVlan(determineTransportVlan(leafSpinePw)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 613 | |
| 614 | // next hops for next objectives |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 615 | log.info("Deploying process : Establishing forward direction for pseudowire {}", l2TunnelId); |
| 616 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 617 | VlanId egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP1OuterTag(), |
| 618 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 619 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 620 | pw.l2TunnelPolicy().cP2InnerTag()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 621 | // We establish the tunnel. |
| 622 | // result.nextId will be used in fwd |
| 623 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 624 | pw.l2TunnelPolicy().cP1(), |
| 625 | pw.l2TunnelPolicy().cP2(), |
| 626 | FWD, |
| 627 | fwdNextHop, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 628 | leafSpinePw, |
| 629 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 630 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 631 | if (result != SUCCESS) { |
| 632 | log.info("Deploying process : Error in deploying pseudowire initiation for CP1"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 633 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire initiation for CP1"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 634 | } |
| 635 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 636 | // We create the policy. |
| 637 | result = deployPolicy(l2TunnelId, |
| 638 | pw.l2TunnelPolicy().cP1(), |
| 639 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 640 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 641 | egressVlan, |
Andreas Pantelopoulos | daf02c8 | 2018-04-04 11:16:56 -0700 | [diff] [blame] | 642 | result.getNextId()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 643 | if (result != SUCCESS) { |
| 644 | log.info("Deploying process : Error in deploying pseudowire policy for CP1"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 645 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire policy for CP1"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | // We terminate the tunnel |
| 649 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 650 | pw.l2TunnelPolicy().cP2(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 651 | egressVlan, |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 652 | FWD, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 653 | leafSpinePw, |
| 654 | oneHop); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 655 | |
| 656 | if (result != SUCCESS) { |
| 657 | log.info("Deploying process : Error in deploying pseudowire termination for CP1"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 658 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP1"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 659 | } |
| 660 | |
| 661 | log.info("Deploying process : Establishing reverse direction for pseudowire {}", l2TunnelId); |
| 662 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 663 | egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP2OuterTag(), |
| 664 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 665 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 666 | pw.l2TunnelPolicy().cP1InnerTag()); |
| 667 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 668 | // We establish the reverse tunnel. |
| 669 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 670 | pw.l2TunnelPolicy().cP2(), |
| 671 | pw.l2TunnelPolicy().cP1(), |
| 672 | REV, |
| 673 | revNextHop, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 674 | leafSpinePw, |
| 675 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 676 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 677 | if (result != SUCCESS) { |
| 678 | log.info("Deploying process : Error in deploying pseudowire initiation for CP2"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 679 | return Result.INTERNAL_ERROR |
| 680 | .appendError("Error in deploying pseudowire initiation for CP2"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 681 | } |
| 682 | |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 683 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 684 | result = deployPolicy(l2TunnelId, |
| 685 | pw.l2TunnelPolicy().cP2(), |
| 686 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 687 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 688 | egressVlan, |
Andreas Pantelopoulos | daf02c8 | 2018-04-04 11:16:56 -0700 | [diff] [blame] | 689 | result.getNextId()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 690 | if (result != SUCCESS) { |
| 691 | log.info("Deploying process : Error in deploying policy for CP2"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 692 | return Result.INTERNAL_ERROR |
| 693 | .appendError("Deploying process : Error in deploying policy for CP2"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 694 | } |
| 695 | |
| 696 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 697 | pw.l2TunnelPolicy().cP1(), |
| 698 | egressVlan, |
| 699 | REV, |
| 700 | leafSpinePw, |
| 701 | oneHop); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 702 | |
| 703 | if (result != SUCCESS) { |
| 704 | log.info("Deploying process : Error in deploying pseudowire termination for CP2"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 705 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP2"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 706 | } |
| 707 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 708 | result = manageIntermediateFiltering(pw, leafSpinePw); |
| 709 | if (result != SUCCESS) { |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 710 | log.info("Deploying process : Error in installing intermediate rules for tagged transport"); |
| 711 | return Result.INTERNAL_ERROR.appendError("Error in installing intermediate rules for tagged transport"); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 712 | } |
| 713 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 714 | log.info("Deploying process : Updating relevant information for pseudowire {}", l2TunnelId); |
| 715 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 716 | // Populate stores as the final step of the process |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 717 | l2TunnelStore.put(Long.toString(l2TunnelId), pw.l2Tunnel()); |
| 718 | l2PolicyStore.put(Long.toString(l2TunnelId), pw.l2TunnelPolicy()); |
| 719 | |
| 720 | return Result.SUCCESS; |
| 721 | } |
| 722 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 723 | @Override |
| 724 | public Result checkIfPwExists(long tunnelId, boolean pending) { |
| 725 | |
| 726 | List<L2TunnelDescription> pseudowires = getL2Descriptions(pending) |
| 727 | .stream() |
| 728 | .filter(pw -> pw.l2Tunnel().tunnelId() == tunnelId) |
| 729 | .collect(Collectors.toList()); |
| 730 | |
| 731 | if (pseudowires.size() == 0) { |
| 732 | String store = ((pending) ? "pending" : "installed"); |
| 733 | log.error("Pseudowire {} does not exist in {} store", tunnelId, store); |
| 734 | return Result.WRONG_PARAMETERS. |
| 735 | appendError("Pseudowire " + tunnelId + " does not exist in " + store); |
| 736 | } else { |
| 737 | return SUCCESS; |
| 738 | } |
| 739 | } |
| 740 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 741 | /** |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 742 | * Tears down connection points of pseudowires. We can either tear down both connection points, |
| 743 | * or each one of them. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 744 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 745 | * @param l2TunnelId The tunnel id for this pseudowire. |
| 746 | * @param tearDownFirst Boolean, true if we want to tear down cp1 |
| 747 | * @param tearDownSecond Boolean, true if we want to tear down cp2 |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 748 | * @param pending Boolean, if true remove only pseudowire from pending stores since no flows/groups |
| 749 | * in the network, else remove flows/groups in the devices also. |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 750 | * @return Result of tearing down the pseudowire, SUCCESS if everything was ok |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 751 | * a descriptive error otherwise. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 752 | */ |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 753 | private Result tearDownConnectionPoints(long l2TunnelId, boolean tearDownFirst, |
| 754 | boolean tearDownSecond, boolean pending) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 755 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 756 | Result res; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 757 | CompletableFuture<ObjectiveError> fwdInitNextFuture = new CompletableFuture<>(); |
| 758 | CompletableFuture<ObjectiveError> fwdTermNextFuture = new CompletableFuture<>(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 759 | CompletableFuture<ObjectiveError> revInitNextFuture = new CompletableFuture<>(); |
| 760 | CompletableFuture<ObjectiveError> revTermNextFuture = new CompletableFuture<>(); |
| 761 | |
| 762 | if (l2TunnelId == 0) { |
| 763 | log.warn("Removal process : Tunnel id cannot be 0"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 764 | return Result.WRONG_PARAMETERS.appendError("Pseudowire id can not be 0."); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 765 | } |
| 766 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 767 | res = checkIfPwExists(l2TunnelId, pending); |
| 768 | if (res != Result.SUCCESS) { |
| 769 | return res; |
| 770 | } |
| 771 | |
| 772 | // remove and get the tunnel and the policy from the appropriate store |
| 773 | // if null, return error. |
| 774 | Versioned<L2Tunnel> l2TunnelVersioned = pending ? |
| 775 | pendingL2TunnelStore.remove(Long.toString(l2TunnelId)) : |
| 776 | l2TunnelStore.remove(Long.toString(l2TunnelId)); |
| 777 | Versioned<L2TunnelPolicy> l2TunnelPolicyVersioned = pending ? |
| 778 | pendingL2PolicyStore.remove(Long.toString(l2TunnelId)) : |
| 779 | l2PolicyStore.remove(Long.toString(l2TunnelId)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 780 | if ((l2TunnelVersioned == null) || (l2TunnelPolicyVersioned == null)) { |
| 781 | log.warn("Removal process : Policy and/or tunnel missing for tunnel id {}", l2TunnelId); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 782 | return Result.INTERNAL_ERROR |
| 783 | .appendError("Policy and/or tunnel missing for pseudowire!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | L2TunnelDescription pwToRemove = new DefaultL2TunnelDescription(l2TunnelVersioned.value(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 787 | l2TunnelPolicyVersioned.value()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 788 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 789 | // remove the reserved transport vlan |
| 790 | if (!pwToRemove.l2Tunnel().transportVlan().equals(UNTAGGED_TRANSPORT_VLAN)) { |
| 791 | vlanStore.remove(pwToRemove.l2Tunnel().transportVlan()); |
| 792 | } |
| 793 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 794 | if (pending) { |
| 795 | // no need to remove flows / groups for a pseudowire |
| 796 | // in pending state |
| 797 | return Result.SUCCESS; |
| 798 | } |
| 799 | |
| 800 | // remove flows/groups involving with this pseudowire |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 801 | if (tearDownFirst) { |
| 802 | log.info("Removal process : Tearing down forward direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 803 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 804 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 805 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 806 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 807 | pwToRemove.l2TunnelPolicy().cP2InnerTag()); |
| 808 | deletePolicy(l2TunnelId, |
| 809 | pwToRemove.l2TunnelPolicy().cP1(), |
| 810 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 811 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 812 | egressVlan, |
| 813 | fwdInitNextFuture, |
| 814 | FWD); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 815 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 816 | fwdInitNextFuture.thenAcceptAsync(status -> { |
| 817 | if (status == null) { |
| 818 | // Finally we will tear down the pseudo wire. |
| 819 | tearDownPseudoWireInit(l2TunnelId, |
| 820 | pwToRemove.l2TunnelPolicy().cP1(), |
| 821 | fwdTermNextFuture, |
| 822 | FWD); |
| 823 | } |
| 824 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 825 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 826 | fwdTermNextFuture.thenAcceptAsync(status -> { |
| 827 | if (status == null) { |
| 828 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 829 | pwToRemove.l2TunnelPolicy().cP2(), |
| 830 | null, |
| 831 | FWD); |
| 832 | } |
| 833 | }); |
| 834 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 835 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 836 | if (tearDownSecond) { |
| 837 | log.info("Removal process : Tearing down reverse direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 838 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 839 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 840 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 841 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 842 | pwToRemove.l2TunnelPolicy().cP1InnerTag()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 843 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 844 | // We do the same operations on the reverse side. |
| 845 | deletePolicy(l2TunnelId, |
| 846 | pwToRemove.l2TunnelPolicy().cP2(), |
| 847 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 848 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 849 | egressVlan, |
| 850 | revInitNextFuture, |
| 851 | REV); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 852 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 853 | revInitNextFuture.thenAcceptAsync(status -> { |
| 854 | if (status == null) { |
| 855 | tearDownPseudoWireInit(l2TunnelId, |
| 856 | pwToRemove.l2TunnelPolicy().cP2(), |
| 857 | revTermNextFuture, |
| 858 | REV); |
| 859 | } |
| 860 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 861 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 862 | revTermNextFuture.thenAcceptAsync(status -> { |
| 863 | if (status == null) { |
| 864 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 865 | pwToRemove.l2TunnelPolicy().cP1(), |
| 866 | null, |
| 867 | REV); |
| 868 | } |
| 869 | }); |
| 870 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 871 | |
| 872 | return Result.SUCCESS; |
| 873 | } |
| 874 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 875 | /** |
| 876 | * Helper function for removing a single pseudowire. |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 877 | * |
| 878 | * Tries to remove pseudowire from any store it might reside (pending or installed). |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 879 | * |
| 880 | * @param l2TunnelId the id of the pseudowire to tear down |
| 881 | * @return Returns SUCCESS if no error is obeserved or an appropriate |
| 882 | * error on a failure |
| 883 | */ |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 884 | public Result tearDownPseudowire(long l2TunnelId) { |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 885 | |
| 886 | if (checkIfPwExists(l2TunnelId, true) == Result.SUCCESS) { |
| 887 | return tearDownConnectionPoints(l2TunnelId, true, true, true); |
| 888 | } else if (checkIfPwExists(l2TunnelId, false) == Result.SUCCESS) { |
| 889 | return tearDownConnectionPoints(l2TunnelId, true, true, false); |
| 890 | } else { |
| 891 | return Result.WRONG_PARAMETERS.appendError("Pseudowire with " |
| 892 | + l2TunnelId |
| 893 | + " did not reside in any store!"); |
| 894 | } |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 895 | } |
| 896 | |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 897 | @Override |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 898 | @Deprecated |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 899 | public void tearDown(Set<L2TunnelDescription> pwToRemove) { |
| 900 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 901 | for (L2TunnelDescription currentL2Tunnel : pwToRemove) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 902 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 903 | long tunnelId = currentL2Tunnel.l2TunnelPolicy().tunnelId(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 904 | log.info("Removing pseudowire {}", tunnelId); |
| 905 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 906 | Result result = tearDownPseudowire(tunnelId); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 907 | if (result != Result.SUCCESS) { |
| 908 | log.error("Could not remove pseudowire {}!", tunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 909 | } |
| 910 | } |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * Handles the policy establishment which consists in |
| 915 | * create the filtering and forwarding objectives related |
| 916 | * to the initiation and termination. |
| 917 | * |
| 918 | * @param tunnelId the tunnel id |
| 919 | * @param ingress the ingress point |
| 920 | * @param ingressInner the ingress inner tag |
| 921 | * @param ingressOuter the ingress outer tag |
| 922 | * @param nextId the next objective id |
| 923 | * @param egressVlan Vlan-id to set, depends on ingress vlan |
| 924 | * combinations. For example, if pw is double tagged |
| 925 | * then this is the value of the outer vlan, if single |
| 926 | * tagged then it is the new value of the single tag. |
| 927 | * Should be None for untagged traffic. |
| 928 | * @return the result of the operation |
| 929 | */ |
| 930 | private Result deployPolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, |
| 931 | VlanId ingressOuter, VlanId egressVlan, int nextId) { |
| 932 | |
| 933 | List<Objective> objectives = Lists.newArrayList(); |
| 934 | // We create the forwarding objective for supporting |
| 935 | // the l2 tunnel. |
| 936 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 937 | // We create and add objective context. |
| 938 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 939 | log.debug("FwdObj for tunnel {} populated", tunnelId), |
| 940 | (objective, error) -> |
| 941 | log.warn("Failed to populate fwdrObj " + |
| 942 | "for tunnel {}", tunnelId, error)); |
| 943 | objectives.add(fwdBuilder.add(context)); |
| 944 | |
| 945 | // We create the filtering objective to define the |
| 946 | // permit traffic in the switch |
| 947 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 948 | |
| 949 | // We add the metadata. |
| 950 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 951 | .builder() |
| 952 | .setTunnelId(tunnelId) |
| 953 | .setVlanId(egressVlan); |
| 954 | filtBuilder.withMeta(treatment.build()); |
| 955 | |
| 956 | // We create and add objective context. |
| 957 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for tunnel {} populated", tunnelId), |
| 958 | (objective, error) -> log.warn("Failed to populate filterObj for " + |
| 959 | "tunnel {}", tunnelId, error)); |
| 960 | objectives.add(filtBuilder.add(context)); |
| 961 | |
| 962 | for (Objective objective : objectives) { |
| 963 | if (objective instanceof ForwardingObjective) { |
| 964 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 965 | log.debug("Creating new FwdObj for initiation NextObj with id={} for tunnel {}", nextId, tunnelId); |
| 966 | } else { |
| 967 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 968 | log.debug("Creating new FiltObj for tunnel {}", tunnelId); |
| 969 | } |
| 970 | } |
| 971 | return SUCCESS; |
| 972 | } |
| 973 | |
| 974 | /** |
| 975 | * Handles the tunnel establishment which consists in |
| 976 | * create the next objectives related to the initiation. |
| 977 | * |
| 978 | * @param l2Tunnel the tunnel to deploy |
| 979 | * @param ingress the ingress connect point |
| 980 | * @param egress the egress connect point |
| 981 | * @param direction the direction of the pw |
| 982 | * @param spinePw if the pseudowire involves a spine switch |
| 983 | * @return the result of the operation |
| 984 | */ |
| 985 | private Result deployPseudoWireInit(L2Tunnel l2Tunnel, ConnectPoint ingress, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 986 | ConnectPoint egress, Direction direction, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 987 | Link nextHop, boolean spinePw, boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 988 | |
| 989 | if (nextHop == null) { |
| 990 | log.warn("No path between ingress and egress cps for tunnel {}", l2Tunnel.tunnelId()); |
| 991 | return WRONG_PARAMETERS; |
| 992 | } |
| 993 | |
| 994 | // We create the next objective without the metadata |
| 995 | // context and id. We check if it already exists in the |
| 996 | // store. If not we store as it is in the store. |
| 997 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(INITIATION, |
| 998 | nextHop.src(), |
| 999 | nextHop.dst(), |
| 1000 | l2Tunnel, |
| 1001 | egress.deviceId(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1002 | spinePw, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1003 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1004 | termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1005 | |
| 1006 | if (nextObjectiveBuilder == null) { |
| 1007 | return INTERNAL_ERROR; |
| 1008 | } |
| 1009 | // We set the metadata. We will use this metadata |
| 1010 | // to inform the driver we are doing a l2 tunnel. |
| 1011 | TrafficSelector metadata = DefaultTrafficSelector |
| 1012 | .builder() |
| 1013 | .matchTunnelId(l2Tunnel.tunnelId()) |
| 1014 | .build(); |
| 1015 | nextObjectiveBuilder.withMeta(metadata); |
| 1016 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 1017 | if (nextId < 0) { |
| 1018 | log.warn("Not able to allocate a next id for initiation"); |
| 1019 | return INTERNAL_ERROR; |
| 1020 | } |
| 1021 | nextObjectiveBuilder.withId(nextId); |
| 1022 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1023 | l2InitiationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 1024 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1025 | log.debug("Initiation l2 tunnel rule " + |
| 1026 | "for {} populated", |
| 1027 | l2Tunnel.tunnelId()), |
| 1028 | (objective, error) -> |
| 1029 | log.warn("Failed to populate Initiation " + |
| 1030 | "l2 tunnel rule for {}: {}", |
| 1031 | l2Tunnel.tunnelId(), error)); |
| 1032 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 1033 | srManager.flowObjectiveService.next(ingress.deviceId(), nextObjective); |
| 1034 | log.debug("Initiation next objective for {} not found. Creating new NextObj with id={}", |
| 1035 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 1036 | Result result = SUCCESS; |
Andreas Pantelopoulos | daf02c8 | 2018-04-04 11:16:56 -0700 | [diff] [blame] | 1037 | result.setNextId(nextObjective.id()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1038 | return result; |
| 1039 | } |
| 1040 | |
| 1041 | /** |
| 1042 | * Handles the tunnel termination, which consists in the creation |
| 1043 | * of a forwarding objective and a next objective. |
| 1044 | * |
| 1045 | * @param l2Tunnel the tunnel to terminate |
| 1046 | * @param egress the egress point |
| 1047 | * @param egressVlan the expected vlan at egress |
| 1048 | * @param direction the direction |
| 1049 | * @param spinePw if the pseudowire involves a spine switch |
| 1050 | * @return the result of the operation |
| 1051 | */ |
| 1052 | private Result deployPseudoWireTerm(L2Tunnel l2Tunnel, ConnectPoint egress, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1053 | VlanId egressVlan, Direction direction, boolean spinePw, boolean oneHop) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1054 | |
| 1055 | // We create the group relative to the termination. |
| 1056 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(TERMINATION, egress, null, |
| 1057 | l2Tunnel, egress.deviceId(), |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1058 | spinePw, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1059 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1060 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1061 | if (nextObjectiveBuilder == null) { |
| 1062 | return INTERNAL_ERROR; |
| 1063 | } |
| 1064 | TrafficSelector metadata = DefaultTrafficSelector |
| 1065 | .builder() |
| 1066 | .matchVlanId(egressVlan) |
| 1067 | .build(); |
| 1068 | nextObjectiveBuilder.withMeta(metadata); |
| 1069 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 1070 | if (nextId < 0) { |
| 1071 | log.warn("Not able to allocate a next id for initiation"); |
| 1072 | return INTERNAL_ERROR; |
| 1073 | } |
| 1074 | nextObjectiveBuilder.withId(nextId); |
| 1075 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1076 | l2TerminationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 1077 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> log.debug("Termination l2 tunnel rule " + |
| 1078 | "for {} populated", |
| 1079 | l2Tunnel.tunnelId()), |
| 1080 | (objective, error) -> log.warn("Failed to populate " + |
| 1081 | "termination l2 tunnel " + |
| 1082 | "rule for {}: {}", |
| 1083 | l2Tunnel.tunnelId(), |
| 1084 | error)); |
| 1085 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 1086 | srManager.flowObjectiveService.next(egress.deviceId(), nextObjective); |
| 1087 | log.debug("Termination next objective for {} not found. Creating new NextObj with id={}", |
| 1088 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 1089 | |
| 1090 | // We create the flow relative to the termination. |
| 1091 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), l2Tunnel.tunnelId(), |
| 1092 | egress.port(), nextObjective.id()); |
| 1093 | context = new DefaultObjectiveContext((objective) -> log.debug("FwdObj for tunnel termination {} populated", |
| 1094 | l2Tunnel.tunnelId()), |
| 1095 | (objective, error) -> log.warn("Failed to populate fwdrObj" + |
| 1096 | " for tunnel termination {}", |
| 1097 | l2Tunnel.tunnelId(), error)); |
| 1098 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.add(context)); |
| 1099 | log.debug("Creating new FwdObj for termination NextObj with id={} for tunnel {}", |
| 1100 | nextId, l2Tunnel.tunnelId()); |
| 1101 | |
| 1102 | if (spinePw) { |
| 1103 | |
| 1104 | // determine the input port at the |
| 1105 | PortNumber inPort; |
| 1106 | |
| 1107 | if (egress.deviceId(). |
| 1108 | equals(l2Tunnel.pathUsed().get(0).dst().deviceId())) { |
| 1109 | inPort = l2Tunnel.pathUsed().get(0).dst().port(); |
| 1110 | } else { |
| 1111 | inPort = l2Tunnel.pathUsed().get(0).src().port(); |
| 1112 | } |
| 1113 | |
| 1114 | MacAddress dstMac; |
| 1115 | try { |
| 1116 | dstMac = srManager.deviceConfiguration().getDeviceMac(egress.deviceId()); |
| 1117 | } catch (Exception e) { |
| 1118 | log.info("Device not found in configuration, no programming of MAC address"); |
| 1119 | dstMac = null; |
| 1120 | } |
| 1121 | |
| 1122 | log.info("Populating filtering objective for pseudowire transport" + |
| 1123 | " with vlan = {}, port = {}, mac = {}", |
| 1124 | l2Tunnel.transportVlan(), |
| 1125 | inPort, |
| 1126 | dstMac); |
| 1127 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 1128 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 1129 | context = new DefaultObjectiveContext((objective) -> |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1130 | log.debug("Special filtObj for " + "for {} populated", |
| 1131 | l2Tunnel.tunnelId()), |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 1132 | (objective, error) -> |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1133 | log.warn("Failed to populate " + |
| 1134 | "special filtObj " + |
| 1135 | "rule for {}: {}", |
| 1136 | l2Tunnel.tunnelId(), error)); |
| 1137 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 1138 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 1139 | srManager.flowObjectiveService.filter(egress.deviceId(), filteringObjectiveBuilder.add(context)); |
| 1140 | log.debug("Creating new special FiltObj for termination point with tunnel {} for port {}", |
| 1141 | l2Tunnel.tunnelId(), |
| 1142 | inPort); |
| 1143 | } |
| 1144 | |
| 1145 | return SUCCESS; |
| 1146 | } |
| 1147 | |
| 1148 | |
| 1149 | /** |
| 1150 | * Creates the filtering objective according to a given port and vlanid. |
| 1151 | * |
| 1152 | * @param inPort the in port |
| 1153 | * @param vlanId the inner vlan tag |
| 1154 | * @return the filtering objective |
| 1155 | */ |
| 1156 | private FilteringObjective.Builder createNormalPipelineFiltObjective(PortNumber inPort, |
| 1157 | VlanId vlanId, |
| 1158 | MacAddress dstMac) { |
| 1159 | |
| 1160 | log.info("Creating filtering objective for pseudowire transport with vlan={}, port={}, mac={}", |
| 1161 | vlanId, |
| 1162 | inPort, |
| 1163 | dstMac); |
| 1164 | FilteringObjective.Builder fwdBuilder = DefaultFilteringObjective |
| 1165 | .builder() |
| 1166 | .withKey(Criteria.matchInPort(inPort)) |
| 1167 | .addCondition(Criteria.matchVlanId(vlanId)) |
| 1168 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1169 | .permit() |
| 1170 | .fromApp(srManager.appId()); |
| 1171 | |
| 1172 | if (dstMac != null) { |
| 1173 | fwdBuilder.addCondition(Criteria.matchEthDst(dstMac)); |
| 1174 | } |
| 1175 | |
| 1176 | return fwdBuilder; |
| 1177 | } |
| 1178 | |
| 1179 | /** |
| 1180 | * Creates the filtering objective according to a given policy. |
| 1181 | * |
| 1182 | * @param inPort the in port |
| 1183 | * @param innerTag the inner vlan tag |
| 1184 | * @param outerTag the outer vlan tag |
| 1185 | * @return the filtering objective |
| 1186 | */ |
| 1187 | private FilteringObjective.Builder createFiltObjective(PortNumber inPort, VlanId innerTag, VlanId outerTag) { |
| 1188 | |
| 1189 | log.info("Creating filtering objective for vlans {} / {}", outerTag, innerTag); |
| 1190 | return DefaultFilteringObjective |
| 1191 | .builder() |
| 1192 | .withKey(Criteria.matchInPort(inPort)) |
| 1193 | .addCondition(Criteria.matchInnerVlanId(innerTag)) |
| 1194 | .addCondition(Criteria.matchVlanId(outerTag)) |
| 1195 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1196 | .permit() |
| 1197 | .fromApp(srManager.appId()); |
| 1198 | } |
| 1199 | |
| 1200 | /** |
| 1201 | * Creates the forwarding objective for the termination. |
| 1202 | * |
| 1203 | * @param pwLabel the pseudo wire label |
| 1204 | * @param tunnelId the tunnel id |
| 1205 | * @param egressPort the egress port |
| 1206 | * @param nextId the next step |
| 1207 | * @return the forwarding objective to support the termination |
| 1208 | */ |
| 1209 | private ForwardingObjective.Builder createTermFwdObjective(MplsLabel pwLabel, long tunnelId, |
| 1210 | PortNumber egressPort, int nextId) { |
| 1211 | |
| 1212 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1213 | TrafficTreatment.Builder trafficTreatment = DefaultTrafficTreatment.builder(); |
| 1214 | // The flow has to match on the pw label and bos |
| 1215 | trafficSelector.matchEthType(Ethernet.MPLS_UNICAST); |
| 1216 | trafficSelector.matchMplsLabel(pwLabel); |
| 1217 | trafficSelector.matchMplsBos(true); |
| 1218 | // The flow has to decrement ttl, restore ttl in |
| 1219 | // pop mpls, set tunnel id and port. |
| 1220 | trafficTreatment.decMplsTtl(); |
| 1221 | trafficTreatment.copyTtlIn(); |
| 1222 | trafficTreatment.popMpls(); |
| 1223 | trafficTreatment.setTunnelId(tunnelId); |
| 1224 | trafficTreatment.setOutput(egressPort); |
| 1225 | |
| 1226 | return DefaultForwardingObjective |
| 1227 | .builder() |
| 1228 | .fromApp(srManager.appId()) |
| 1229 | .makePermanent() |
| 1230 | .nextStep(nextId) |
| 1231 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1232 | .withSelector(trafficSelector.build()) |
| 1233 | .withTreatment(trafficTreatment.build()) |
| 1234 | .withFlag(VERSATILE); |
| 1235 | } |
| 1236 | |
| 1237 | /** |
| 1238 | * Creates the forwarding objective for the initiation. |
| 1239 | * |
| 1240 | * @param tunnelId the tunnel id |
| 1241 | * @param inPort the input port |
| 1242 | * @param nextId the next step |
| 1243 | * @return the forwarding objective to support the initiation. |
| 1244 | */ |
| 1245 | private ForwardingObjective.Builder createInitFwdObjective(long tunnelId, PortNumber inPort, int nextId) { |
| 1246 | |
| 1247 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1248 | |
| 1249 | // The flow has to match on the mpls logical |
| 1250 | // port and the tunnel id. |
| 1251 | trafficSelector.matchTunnelId(tunnelId); |
| 1252 | trafficSelector.matchInPort(inPort); |
| 1253 | |
| 1254 | return DefaultForwardingObjective |
| 1255 | .builder() |
| 1256 | .fromApp(srManager.appId()) |
| 1257 | .makePermanent() |
| 1258 | .nextStep(nextId) |
| 1259 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1260 | .withSelector(trafficSelector.build()) |
| 1261 | .withFlag(VERSATILE); |
| 1262 | |
| 1263 | } |
| 1264 | |
| 1265 | /** |
| 1266 | * Creates the next objective according to a given |
| 1267 | * pipeline. We don't set the next id and we don't |
| 1268 | * create the final meta to check if we are re-using |
| 1269 | * the same next objective for different tunnels. |
| 1270 | * |
| 1271 | * @param pipeline the pipeline to support |
| 1272 | * @param srcCp the source port |
| 1273 | * @param dstCp the destination port |
| 1274 | * @param l2Tunnel the tunnel to support |
| 1275 | * @param egressId the egress device id |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1276 | * @param oneHop if the pw only has one hop, push only pw label |
| 1277 | * @param leafSpinePw true if we want instantiate a leaf-spine or leaf-spine-spine pw |
| 1278 | * @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] | 1279 | * @return the next objective to support the pipeline |
| 1280 | */ |
| 1281 | private NextObjective.Builder createNextObjective(Pipeline pipeline, ConnectPoint srcCp, |
| 1282 | ConnectPoint dstCp, L2Tunnel l2Tunnel, |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1283 | DeviceId egressId, boolean leafSpinePw, |
| 1284 | boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1285 | NextObjective.Builder nextObjBuilder; |
| 1286 | TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); |
| 1287 | if (pipeline == INITIATION) { |
| 1288 | nextObjBuilder = DefaultNextObjective |
| 1289 | .builder() |
| 1290 | .withType(NextObjective.Type.SIMPLE) |
| 1291 | .fromApp(srManager.appId()); |
| 1292 | // The pw label is the bottom of stack. It has to |
| 1293 | // be different -1. |
| 1294 | if (l2Tunnel.pwLabel().toInt() == MplsLabel.MAX_MPLS) { |
| 1295 | log.warn("Pw label not configured"); |
| 1296 | return null; |
| 1297 | } |
| 1298 | treatmentBuilder.pushMpls(); |
| 1299 | treatmentBuilder.setMpls(l2Tunnel.pwLabel()); |
| 1300 | treatmentBuilder.setMplsBos(true); |
| 1301 | treatmentBuilder.copyTtlOut(); |
| 1302 | |
| 1303 | // If the inter-co label is present we have to set the label. |
| 1304 | if (l2Tunnel.interCoLabel().toInt() != MplsLabel.MAX_MPLS) { |
| 1305 | treatmentBuilder.pushMpls(); |
| 1306 | treatmentBuilder.setMpls(l2Tunnel.interCoLabel()); |
| 1307 | treatmentBuilder.setMplsBos(false); |
| 1308 | treatmentBuilder.copyTtlOut(); |
| 1309 | } |
| 1310 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1311 | // if not oneHop install transit mpls labels also |
| 1312 | if (!oneHop) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1313 | // We retrieve the sr label from the config |
| 1314 | // specific for pseudowire traffic |
| 1315 | // using the egress leaf device id. |
| 1316 | MplsLabel srLabel; |
| 1317 | try { |
| 1318 | srLabel = MplsLabel.mplsLabel(srManager.deviceConfiguration().getPWRoutingLabel(egressId)); |
| 1319 | |
| 1320 | } catch (DeviceConfigNotFoundException e) { |
| 1321 | log.warn("Sr label for pw traffic not configured"); |
| 1322 | return null; |
| 1323 | } |
| 1324 | |
| 1325 | treatmentBuilder.pushMpls(); |
| 1326 | treatmentBuilder.setMpls(srLabel); |
| 1327 | treatmentBuilder.setMplsBos(false); |
| 1328 | treatmentBuilder.copyTtlOut(); |
| 1329 | } |
| 1330 | |
| 1331 | // We have to rewrite the src and dst mac address. |
| 1332 | MacAddress ingressMac; |
| 1333 | try { |
| 1334 | ingressMac = srManager.deviceConfiguration().getDeviceMac(srcCp.deviceId()); |
| 1335 | } catch (DeviceConfigNotFoundException e) { |
| 1336 | log.warn("Was not able to find the ingress mac"); |
| 1337 | return null; |
| 1338 | } |
| 1339 | treatmentBuilder.setEthSrc(ingressMac); |
| 1340 | MacAddress neighborMac; |
| 1341 | try { |
| 1342 | neighborMac = srManager.deviceConfiguration().getDeviceMac(dstCp.deviceId()); |
| 1343 | } catch (DeviceConfigNotFoundException e) { |
| 1344 | log.warn("Was not able to find the neighbor mac"); |
| 1345 | return null; |
| 1346 | } |
| 1347 | treatmentBuilder.setEthDst(neighborMac); |
| 1348 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1349 | // if true we need to pop the vlan because |
| 1350 | // we instantiate a leaf to leaf pseudowire |
| 1351 | if (!leafSpinePw) { |
| 1352 | log.info("We should carry this traffic UNTAGGED!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1353 | treatmentBuilder.popVlan(); |
| 1354 | } |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1355 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1356 | // set the appropriate transport vlan from tunnel information |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1357 | treatmentBuilder.setVlanId(l2Tunnel.transportVlan()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1358 | } else { |
| 1359 | // We create the next objective which |
| 1360 | // will be a simple l2 group. |
| 1361 | nextObjBuilder = DefaultNextObjective |
| 1362 | .builder() |
| 1363 | .withType(NextObjective.Type.SIMPLE) |
| 1364 | .fromApp(srManager.appId()); |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1365 | |
| 1366 | // for termination point we use the outer vlan of the |
| 1367 | // encapsulated packet |
| 1368 | treatmentBuilder.setVlanId(termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1369 | } |
| 1370 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1371 | treatmentBuilder.setOutput(srcCp.port()); |
| 1372 | nextObjBuilder.addTreatment(treatmentBuilder.build()); |
| 1373 | return nextObjBuilder; |
| 1374 | } |
| 1375 | |
| 1376 | /** |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1377 | * Reverse an l2 tunnel policy in order to have as CP1 the leaf switch, |
| 1378 | * in case one of the switches is a spine. |
| 1379 | * |
| 1380 | * This makes possible the usage of SRLinkWeigher for computing valid paths, |
| 1381 | * which cuts leaf-spine links from the path computation with a src different |
| 1382 | * than the source leaf. |
| 1383 | * |
| 1384 | * @param policy The policy to reverse, if needed |
| 1385 | * @return a l2TunnelPolicy containing the leaf at CP1, suitable for usage with |
| 1386 | * current SRLinkWeigher |
| 1387 | */ |
| 1388 | private L2TunnelPolicy reverseL2TunnelPolicy(L2TunnelPolicy policy) { |
| 1389 | try { |
| 1390 | // if cp1 is a leaf, just return |
| 1391 | if (srManager.deviceConfiguration().isEdgeDevice(policy.cP1().deviceId())) { |
| 1392 | return policy; |
| 1393 | } else { |
| 1394 | // return a policy with reversed cp1 and cp2, and also with reversed tags |
| 1395 | return new DefaultL2TunnelPolicy(policy.tunnelId(), |
| 1396 | policy.cP2(), policy.cP2InnerTag(), policy.cP2OuterTag(), |
| 1397 | policy.cP1(), policy.cP1InnerTag(), policy.cP1OuterTag()); |
| 1398 | |
| 1399 | } |
| 1400 | } catch (DeviceConfigNotFoundException e) { |
| 1401 | // should never come here, since it has been checked before |
| 1402 | log.error("Configuration for device {}, does not exist!"); |
| 1403 | return null; |
| 1404 | } |
| 1405 | } |
| 1406 | |
| 1407 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1408 | * Reverses a link. |
| 1409 | * |
| 1410 | * @param link link to be reversed |
| 1411 | * @return the reversed link |
| 1412 | */ |
| 1413 | private Link reverseLink(Link link) { |
| 1414 | |
| 1415 | DefaultLink.Builder linkBuilder = DefaultLink.builder(); |
| 1416 | |
| 1417 | linkBuilder.src(link.dst()); |
| 1418 | linkBuilder.dst(link.src()); |
| 1419 | linkBuilder.type(link.type()); |
| 1420 | linkBuilder.providerId(link.providerId()); |
| 1421 | |
| 1422 | return linkBuilder.build(); |
| 1423 | } |
| 1424 | |
| 1425 | /** |
| 1426 | * Returns the path betwwen two connect points. |
| 1427 | * |
| 1428 | * @param srcCp source connect point |
| 1429 | * @param dstCp destination connect point |
| 1430 | * @return the path |
| 1431 | */ |
| 1432 | private List<Link> getPath(ConnectPoint srcCp, ConnectPoint dstCp) { |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1433 | |
| 1434 | // use SRLinkWeigher to avoid pair links, and also |
| 1435 | // avoid going from the spine to the leaf and to the |
| 1436 | // spine again, we need to have the leaf as CP1 here. |
| 1437 | LinkWeigher srLw = new SRLinkWeigher(srManager, srcCp.deviceId(), new HashSet<Link>()); |
| 1438 | |
| 1439 | Set<Path> paths = srManager.topologyService. |
| 1440 | getPaths(srManager.topologyService.currentTopology(), |
| 1441 | srcCp.deviceId(), dstCp.deviceId(), srLw); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1442 | |
| 1443 | log.debug("Paths obtained from topology service {}", paths); |
| 1444 | |
| 1445 | // We randomly pick a path. |
| 1446 | if (paths.isEmpty()) { |
| 1447 | return null; |
| 1448 | } |
| 1449 | int size = paths.size(); |
| 1450 | int index = RandomUtils.nextInt(0, size); |
| 1451 | |
| 1452 | List<Link> result = Iterables.get(paths, index).links(); |
| 1453 | log.debug("Randomly picked a path {}", result); |
| 1454 | |
| 1455 | return result; |
| 1456 | } |
| 1457 | |
| 1458 | /** |
| 1459 | * Deletes a given policy using the parameter supplied. |
| 1460 | * |
| 1461 | * @param tunnelId the tunnel id |
| 1462 | * @param ingress the ingress point |
| 1463 | * @param ingressInner the ingress inner vlan id |
| 1464 | * @param ingressOuter the ingress outer vlan id |
| 1465 | * @param future to perform the async operation |
| 1466 | * @param direction the direction: forward or reverse |
| 1467 | */ |
| 1468 | private void deletePolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, VlanId ingressOuter, |
| 1469 | VlanId egressVlan, CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1470 | |
| 1471 | String key = generateKey(tunnelId, direction); |
| 1472 | if (!l2InitiationNextObjStore.containsKey(key)) { |
| 1473 | log.warn("Abort delete of policy for tunnel {}: next does not exist in the store", tunnelId); |
| 1474 | if (future != null) { |
| 1475 | future.complete(null); |
| 1476 | } |
| 1477 | return; |
| 1478 | } |
| 1479 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
| 1480 | int nextId = nextObjective.id(); |
| 1481 | List<Objective> objectives = Lists.newArrayList(); |
| 1482 | // We create the forwarding objective. |
| 1483 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 1484 | ObjectiveContext context = new ObjectiveContext() { |
| 1485 | @Override |
| 1486 | public void onSuccess(Objective objective) { |
| 1487 | log.debug("Previous fwdObj for policy {} removed", tunnelId); |
| 1488 | if (future != null) { |
| 1489 | future.complete(null); |
| 1490 | } |
| 1491 | } |
| 1492 | |
| 1493 | @Override |
| 1494 | public void onError(Objective objective, ObjectiveError error) { |
| 1495 | log.warn("Failed to remove previous fwdObj for policy {}: {}", tunnelId, error); |
| 1496 | if (future != null) { |
| 1497 | future.complete(error); |
| 1498 | } |
| 1499 | } |
| 1500 | }; |
| 1501 | objectives.add(fwdBuilder.remove(context)); |
| 1502 | // We create the filtering objective to define the |
| 1503 | // permit traffic in the switch |
| 1504 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 1505 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 1506 | .builder() |
| 1507 | .setTunnelId(tunnelId) |
| 1508 | .setVlanId(egressVlan); |
| 1509 | filtBuilder.withMeta(treatment.build()); |
| 1510 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for policy {} revoked", tunnelId), |
| 1511 | (objective, error) -> |
| 1512 | log.warn("Failed to revoke filterObj for policy {}", |
| 1513 | tunnelId, error)); |
| 1514 | objectives.add(filtBuilder.remove(context)); |
| 1515 | |
| 1516 | for (Objective objective : objectives) { |
| 1517 | if (objective instanceof ForwardingObjective) { |
| 1518 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 1519 | } else { |
| 1520 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 1521 | } |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | /** |
| 1526 | * Deletes the pseudo wire initiation. |
| 1527 | * |
| 1528 | * @param l2TunnelId the tunnel id |
| 1529 | * @param ingress the ingress connect point |
| 1530 | * @param future to perform an async operation |
| 1531 | * @param direction the direction: reverse of forward |
| 1532 | */ |
| 1533 | private void tearDownPseudoWireInit(long l2TunnelId, ConnectPoint ingress, |
| 1534 | CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1535 | |
| 1536 | String key = generateKey(l2TunnelId, direction); |
| 1537 | if (!l2InitiationNextObjStore.containsKey(key)) { |
| 1538 | log.info("Abort delete of {} for {}: next does not exist in the store", INITIATION, key); |
| 1539 | if (future != null) { |
| 1540 | future.complete(null); |
| 1541 | } |
| 1542 | return; |
| 1543 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1544 | |
| 1545 | // un-comment in case you want to delete groups used by the pw |
| 1546 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1547 | // not be deleted (it is referenced by other groups) |
| 1548 | /* |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 1549 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1550 | ObjectiveContext context = new ObjectiveContext() { |
| 1551 | @Override |
| 1552 | public void onSuccess(Objective objective) { |
| 1553 | log.debug("Previous {} next for {} removed", INITIATION, key); |
| 1554 | if (future != null) { |
| 1555 | future.complete(null); |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | @Override |
| 1560 | public void onError(Objective objective, ObjectiveError error) { |
| 1561 | log.warn("Failed to remove previous {} next for {}: {}", INITIATION, key, error); |
| 1562 | if (future != null) { |
| 1563 | future.complete(error); |
| 1564 | } |
| 1565 | } |
| 1566 | }; |
| 1567 | srManager.flowObjectiveService.next(ingress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1568 | */ |
| 1569 | |
| 1570 | future.complete(null); |
| 1571 | l2InitiationNextObjStore.remove(key); |
| 1572 | } |
| 1573 | |
| 1574 | /** |
| 1575 | * Deletes the pseudo wire termination. |
| 1576 | * |
| 1577 | * @param l2Tunnel the tunnel |
| 1578 | * @param egress the egress connect point |
| 1579 | * @param future the async task |
| 1580 | * @param direction the direction of the tunnel |
| 1581 | */ |
| 1582 | private void tearDownPseudoWireTerm(L2Tunnel l2Tunnel, |
| 1583 | ConnectPoint egress, |
| 1584 | CompletableFuture<ObjectiveError> future, |
| 1585 | Direction direction) { |
| 1586 | |
| 1587 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1588 | if (!l2TerminationNextObjStore.containsKey(key)) { |
| 1589 | log.info("Abort delete of {} for {}: next does not exist in the store", TERMINATION, key); |
| 1590 | if (future != null) { |
| 1591 | future.complete(null); |
| 1592 | } |
| 1593 | return; |
| 1594 | } |
| 1595 | NextObjective nextObjective = l2TerminationNextObjStore.get(key).value(); |
| 1596 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), |
| 1597 | l2Tunnel.tunnelId(), |
| 1598 | egress.port(), |
| 1599 | nextObjective.id()); |
| 1600 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1601 | log.debug("FwdObj for {} {}, " + |
| 1602 | "direction {} removed", |
| 1603 | TERMINATION, |
| 1604 | l2Tunnel.tunnelId(), |
| 1605 | direction), |
| 1606 | (objective, error) -> |
| 1607 | log.warn("Failed to remove fwdObj " + |
| 1608 | "for {} {}" + |
| 1609 | ", direction {}", |
| 1610 | TERMINATION, |
| 1611 | l2Tunnel.tunnelId(), |
| 1612 | error, |
| 1613 | direction)); |
| 1614 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.remove(context)); |
| 1615 | |
| 1616 | // un-comment in case you want to delete groups used by the pw |
| 1617 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1618 | // not be deleted (it is referenced by other groups) |
| 1619 | /* |
| 1620 | context = new ObjectiveContext() { |
| 1621 | @Override |
| 1622 | public void onSuccess(Objective objective) { |
| 1623 | log.debug("Previous {} next for {} removed", TERMINATION, key); |
| 1624 | if (future != null) { |
| 1625 | future.complete(null); |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | @Override |
| 1630 | public void onError(Objective objective, ObjectiveError error) { |
| 1631 | log.warn("Failed to remove previous {} next for {}: {}", TERMINATION, key, error); |
| 1632 | if (future != null) { |
| 1633 | future.complete(error); |
| 1634 | } |
| 1635 | } |
| 1636 | }; |
| 1637 | srManager.flowObjectiveService.next(egress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1638 | */ |
| 1639 | |
| 1640 | // delete the extra filtering objective for terminating |
| 1641 | // spine-spine pws |
| 1642 | if (!l2Tunnel.transportVlan().equals(UNTAGGED_TRANSPORT_VLAN)) { |
| 1643 | |
| 1644 | // determine the input port at the |
| 1645 | PortNumber inPort; |
| 1646 | |
| 1647 | if (egress.deviceId(). |
| 1648 | equals(l2Tunnel.pathUsed().get(0).dst().deviceId())) { |
| 1649 | inPort = l2Tunnel.pathUsed().get(0).dst().port(); |
| 1650 | } else { |
| 1651 | inPort = l2Tunnel.pathUsed().get(0).src().port(); |
| 1652 | } |
| 1653 | |
| 1654 | MacAddress dstMac; |
| 1655 | try { |
| 1656 | dstMac = srManager.deviceConfiguration().getDeviceMac(egress.deviceId()); |
| 1657 | } catch (Exception e) { |
| 1658 | log.info("Device not found in configuration, no programming of MAC address"); |
| 1659 | dstMac = null; |
| 1660 | } |
| 1661 | |
| 1662 | log.info("Removing filtering objective for pseudowire transport" + |
| 1663 | " with vlan = {}, port = {}, mac = {}", |
| 1664 | l2Tunnel.transportVlan(), |
| 1665 | inPort, |
| 1666 | dstMac); |
| 1667 | FilteringObjective.Builder filteringObjectiveBuilder = |
| 1668 | createNormalPipelineFiltObjective(inPort, l2Tunnel.transportVlan(), dstMac); |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 1669 | context = new DefaultObjectiveContext((objective) -> |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1670 | log.debug("Special filtObj for " + "for {} removed", |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame^] | 1671 | l2Tunnel.tunnelId()), (objective, error) -> |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1672 | log.warn("Failed to populate " + "special filtObj " + |
| 1673 | "rule for {}: {}", l2Tunnel.tunnelId(), error)); |
| 1674 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 1675 | filteringObjectiveBuilder.withMeta(treatment.build()); |
| 1676 | srManager.flowObjectiveService.filter(egress.deviceId(), filteringObjectiveBuilder.remove(context)); |
| 1677 | log.debug("Removing special FiltObj for termination point with tunnel {} for port {}", |
| 1678 | l2Tunnel.tunnelId(), |
| 1679 | inPort); |
| 1680 | } |
| 1681 | |
| 1682 | l2TerminationNextObjStore.remove(key); |
| 1683 | future.complete(null); |
| 1684 | } |
| 1685 | |
| 1686 | /** |
| 1687 | * Utilities to generate pw key. |
| 1688 | * |
| 1689 | * @param tunnelId the tunnel id |
| 1690 | * @param direction the direction of the pw |
| 1691 | * @return the key of the store |
| 1692 | */ |
| 1693 | private String generateKey(long tunnelId, Direction direction) { |
| 1694 | return String.format("%s-%s", tunnelId, direction); |
| 1695 | } |
| 1696 | |
| 1697 | } |