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; |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 55 | import org.onosproject.store.service.DistributedLock; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 56 | import org.onosproject.store.service.Serializer; |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 57 | import org.onosproject.store.service.StorageException; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 58 | import org.onosproject.store.service.Versioned; |
| 59 | import org.slf4j.Logger; |
| 60 | import org.slf4j.LoggerFactory; |
| 61 | |
| 62 | import java.util.ArrayList; |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 63 | import java.util.HashSet; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 64 | import java.util.List; |
| 65 | import java.util.Set; |
| 66 | import java.util.concurrent.CompletableFuture; |
| 67 | import java.util.stream.Collectors; |
| 68 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 69 | import static org.onosproject.net.flowobjective.ForwardingObjective.Flag.VERSATILE; |
| 70 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.INITIATION; |
| 71 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.TERMINATION; |
| 72 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Result.*; |
| 73 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.FWD; |
| 74 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.REV; |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 75 | import static org.onosproject.segmentrouting.pwaas.PwaasUtil.*; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 76 | |
| 77 | /** |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 78 | * Handler for pseudowire management. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 79 | */ |
| 80 | public class DefaultL2TunnelHandler implements L2TunnelHandler { |
| 81 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 82 | private static final String LOCK_NAME = "l2-tunnel-handler-lock"; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 83 | private static final Logger log = LoggerFactory.getLogger(DefaultL2TunnelHandler.class); |
| 84 | |
| 85 | private final SegmentRoutingManager srManager; |
| 86 | /** |
| 87 | * To store the next objectives related to the initiation. |
| 88 | */ |
| 89 | private final ConsistentMap<String, NextObjective> l2InitiationNextObjStore; |
| 90 | /** |
| 91 | * To store the next objectives related to the termination. |
| 92 | */ |
| 93 | private final ConsistentMap<String, NextObjective> l2TerminationNextObjStore; |
| 94 | |
| 95 | /** |
| 96 | * To store policies. |
| 97 | */ |
| 98 | private final ConsistentMap<String, L2TunnelPolicy> l2PolicyStore; |
| 99 | |
| 100 | /** |
| 101 | * To store tunnels. |
| 102 | */ |
| 103 | private final ConsistentMap<String, L2Tunnel> l2TunnelStore; |
| 104 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 105 | /** |
| 106 | * To store pending tunnels that need to be installed. |
| 107 | */ |
| 108 | private final ConsistentMap<String, L2Tunnel> pendingL2TunnelStore; |
| 109 | |
| 110 | /** |
| 111 | * To store pending policies that need to be installed. |
| 112 | */ |
| 113 | private final ConsistentMap<String, L2TunnelPolicy> pendingL2PolicyStore; |
| 114 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 115 | private final KryoNamespace.Builder l2TunnelKryo; |
| 116 | |
| 117 | /** |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 118 | * Lock used when creating or removing pseudowires. |
| 119 | */ |
| 120 | private final DistributedLock pwLock; |
| 121 | |
| 122 | private static final long LOCK_TIMEOUT = 2000; |
| 123 | |
| 124 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 125 | * Create a l2 tunnel handler for the deploy and |
| 126 | * for the tear down of pseudo wires. |
| 127 | * |
| 128 | * @param segmentRoutingManager the segment routing manager |
| 129 | */ |
| 130 | public DefaultL2TunnelHandler(SegmentRoutingManager segmentRoutingManager) { |
| 131 | srManager = segmentRoutingManager; |
| 132 | l2TunnelKryo = new KryoNamespace.Builder() |
| 133 | .register(KryoNamespaces.API) |
| 134 | .register(L2Tunnel.class, |
| 135 | L2TunnelPolicy.class, |
| 136 | DefaultL2Tunnel.class, |
| 137 | DefaultL2TunnelPolicy.class, |
| 138 | L2Mode.class, |
| 139 | MplsLabel.class, |
| 140 | VlanId.class, |
| 141 | ConnectPoint.class); |
| 142 | |
| 143 | l2InitiationNextObjStore = srManager. |
| 144 | storageService. |
| 145 | <String, NextObjective>consistentMapBuilder(). |
| 146 | withName("onos-l2initiation-nextobj-store"). |
| 147 | withSerializer(Serializer.using(l2TunnelKryo.build())). |
| 148 | build(); |
| 149 | |
| 150 | l2TerminationNextObjStore = srManager.storageService. |
| 151 | <String, NextObjective>consistentMapBuilder() |
| 152 | .withName("onos-l2termination-nextobj-store") |
| 153 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 154 | .build(); |
| 155 | |
| 156 | l2PolicyStore = srManager.storageService |
| 157 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 158 | .withName("onos-l2-policy-store") |
| 159 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 160 | .build(); |
| 161 | |
| 162 | l2TunnelStore = srManager.storageService |
| 163 | .<String, L2Tunnel>consistentMapBuilder() |
| 164 | .withName("onos-l2-tunnel-store") |
| 165 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 166 | .build(); |
| 167 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 168 | pendingL2PolicyStore = srManager.storageService |
| 169 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 170 | .withName("onos-l2-pending-policy-store") |
| 171 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 172 | .build(); |
| 173 | |
| 174 | pendingL2TunnelStore = srManager.storageService |
| 175 | .<String, L2Tunnel>consistentMapBuilder() |
| 176 | .withName("onos-l2-pending-tunnel-store") |
| 177 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 178 | .build(); |
| 179 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 180 | pwLock = srManager.storageService.lockBuilder() |
| 181 | .withName(LOCK_NAME) |
| 182 | .build() |
| 183 | .asLock(LOCK_TIMEOUT); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 187 | * Used by manager only in initialization. |
| 188 | */ |
| 189 | @Override |
| 190 | public void init() { |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 191 | // Since we have no pseudowires in netcfg there |
| 192 | // is nothing to do in initialization. |
| 193 | // I leave it here because potentially we might need to |
| 194 | // use it in the future. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 195 | } |
| 196 | |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 197 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 198 | public Set<L2TunnelDescription> getL2Descriptions(boolean pending) { |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 199 | // get pending tunnels/policies OR installed tunnels/policies |
| 200 | List<L2Tunnel> tunnels = pending ? getL2PendingTunnels() : getL2Tunnels(); |
| 201 | List<L2TunnelPolicy> policies = pending ? getL2PendingPolicies() : getL2Policies(); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 202 | return tunnels.stream() |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 203 | .map(l2Tunnel -> { |
| 204 | L2TunnelPolicy policy = null; |
| 205 | for (L2TunnelPolicy l2Policy : policies) { |
| 206 | if (l2Policy.tunnelId() == l2Tunnel.tunnelId()) { |
| 207 | policy = l2Policy; |
| 208 | break; |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | return new DefaultL2TunnelDescription(l2Tunnel, policy); |
| 213 | }) |
| 214 | .collect(Collectors.toSet()); |
| 215 | } |
| 216 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 217 | @Override |
| 218 | public List<L2TunnelPolicy> getL2Policies() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 219 | return new ArrayList<>(l2PolicyStore |
| 220 | .values() |
| 221 | .stream() |
| 222 | .map(Versioned::value) |
| 223 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 224 | } |
| 225 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 226 | @Override |
| 227 | public List<L2Tunnel> getL2Tunnels() { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 228 | return new ArrayList<>(l2TunnelStore |
| 229 | .values() |
| 230 | .stream() |
| 231 | .map(Versioned::value) |
| 232 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | @Override |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 236 | public List<L2TunnelPolicy> getL2PendingPolicies() { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 237 | return new ArrayList<>(pendingL2PolicyStore |
| 238 | .values() |
| 239 | .stream() |
| 240 | .map(Versioned::value) |
| 241 | .collect(Collectors.toList())); |
| 242 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 243 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 244 | @Override |
| 245 | public List<L2Tunnel> getL2PendingTunnels() { |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 246 | return new ArrayList<>(pendingL2TunnelStore |
| 247 | .values() |
| 248 | .stream() |
| 249 | .map(Versioned::value) |
| 250 | .collect(Collectors.toList())); |
| 251 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 252 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 253 | @Override |
| 254 | public Result verifyGlobalValidity(L2TunnelDescription pwToAdd) { |
| 255 | |
| 256 | // get both added and pending pseudowires |
| 257 | List<L2TunnelDescription> newPseudowires = new ArrayList<>(); |
| 258 | newPseudowires.addAll(getL2Descriptions(false)); |
| 259 | newPseudowires.addAll(getL2Descriptions(true)); |
| 260 | // add the new one |
| 261 | newPseudowires.add(pwToAdd); |
| 262 | |
| 263 | return configurationValidity(newPseudowires); |
| 264 | } |
| 265 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 266 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 267 | * Returns the new vlan id for an ingress point of a |
| 268 | * pseudowire. For double tagged, it is the outer, |
| 269 | * For single tagged it is the single tag, and for |
| 270 | * inner it is None. |
| 271 | * |
| 272 | * @param ingressOuter vlanid of ingress outer |
| 273 | * @param ingressInner vlanid of ingress inner |
| 274 | * @param egressOuter vlanid of egress outer |
| 275 | * @param egressInner vlanid of egress inner |
| 276 | * @return returns the vlan id which will be installed at vlan table 1. |
| 277 | */ |
| 278 | private VlanId determineEgressVlan(VlanId ingressOuter, VlanId ingressInner, |
| 279 | VlanId egressOuter, VlanId egressInner) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 280 | // validity of vlan combinations was checked at verifyPseudowire |
| 281 | if (!(ingressOuter.equals(VlanId.NONE))) { |
| 282 | return egressOuter; |
| 283 | } else if (!(ingressInner.equals(VlanId.NONE))) { |
| 284 | return egressInner; |
| 285 | } else { |
| 286 | return VlanId.vlanId("None"); |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | /** |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 291 | * Returns the devices existing on a given path. |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 292 | * |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 293 | * @param path The path to traverse. |
| 294 | * @return The devices on the path with the order they |
| 295 | * are traversed. |
| 296 | */ |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 297 | private List<DeviceId> getDevicesOnPath(List<Link> path) { |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 298 | |
| 299 | // iterate over links and get all devices in the order |
| 300 | // we find them |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame] | 301 | List<DeviceId> deviceList = new ArrayList<>(); |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 302 | for (Link link : path) { |
| 303 | if (!deviceList.contains(link.src().deviceId())) { |
| 304 | deviceList.add(link.src().deviceId()); |
| 305 | } |
| 306 | if (!deviceList.contains(link.dst().deviceId())) { |
| 307 | deviceList.add(link.dst().deviceId()); |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | return deviceList; |
| 312 | } |
| 313 | |
| 314 | /** |
| 315 | * Returns true if path is valid according to the current logic. |
| 316 | * For example : leaf to spine pseudowires can be either leaf-spine or |
| 317 | * leaf-spine-spine. However, in the configuration we might specify spine device |
| 318 | * first which will result in spine-spine-leaf. If leafSpinePw == true we have one of these |
| 319 | * two cases and need to provision for them. |
| 320 | * |
| 321 | * If we have a leaf to leaf pseudowire then all the intermediate devices must |
| 322 | * be spines. However, in case of paired switches we can have two leafs interconnected |
| 323 | * with each other directly. |
| 324 | * |
| 325 | * @param path the chosen path |
| 326 | * @param leafSpinePw if it is a leaf to spine pseudowire |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 327 | * @return True if path size is valid, false otherwise. |
| 328 | */ |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 329 | private boolean isValidPath(List<Link> path, boolean leafSpinePw) { |
| 330 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 331 | log.debug("Checking path validity for pseudowire."); |
Andreas Pantelopoulos | 6692fdd | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 332 | List<DeviceId> devices = getDevicesOnPath(path); |
| 333 | if (devices.size() < 2) { |
| 334 | log.error("Path size for pseudowire should be greater than 1!"); |
| 335 | return false; |
| 336 | } |
| 337 | |
| 338 | try { |
| 339 | if (leafSpinePw) { |
| 340 | // can either be leaf-spine-spine or leaf-spine |
| 341 | // first device is leaf, all other must be spines |
| 342 | log.debug("Devices on path are {} for leaf to spine pseudowire", devices); |
| 343 | // if first device is a leaf then all other must be spines |
| 344 | if (srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 345 | devices.remove(0); |
| 346 | for (DeviceId devId : devices) { |
| 347 | log.debug("Device {} should be a spine!", devId); |
| 348 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 349 | return false; |
| 350 | } |
| 351 | } |
| 352 | } else { |
| 353 | // if first device is spine, last device must be a leaf |
| 354 | // all other devices must be spines |
| 355 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 356 | return false; |
| 357 | } |
| 358 | devices.remove(devices.size() - 1); |
| 359 | for (DeviceId devId : devices) { |
| 360 | log.debug("Device {} should be a spine!", devId); |
| 361 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 362 | return false; |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | } else { |
| 367 | // can either be leaf-leaf (paired leafs) / leaf-spine-leaf |
| 368 | // or leaf-spine-spine-leaf |
| 369 | log.debug("Devices on path are {} for leaf to leaf pseudowire", devices); |
| 370 | // check first device, needs to be a leaf |
| 371 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 372 | return false; |
| 373 | } |
| 374 | // check last device, needs to be a leaf |
| 375 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 376 | return false; |
| 377 | } |
| 378 | // remove these devices, rest must all be spines |
| 379 | devices.remove(0); |
| 380 | devices.remove(devices.size() - 1); |
| 381 | for (DeviceId devId : devices) { |
| 382 | log.debug("Device {} should be a spine!", devId); |
| 383 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 384 | return false; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | } |
| 389 | } catch (DeviceConfigNotFoundException e) { |
| 390 | log.error("Device not found in configuration : {}", e); |
| 391 | return false; |
| 392 | } |
| 393 | |
| 394 | return true; |
Andreas Pantelopoulos | ff691b7 | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | /** |
Andreas Pantelopoulos | cd33959 | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 398 | * Adds a single pseudowire. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 399 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 400 | * @param pw The pseudowire to deploy |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 401 | * @return result of pseudowire deployment |
| 402 | */ |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 403 | public Result deployPseudowire(L2TunnelDescription pw) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 404 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 405 | try { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 406 | // take the lock |
| 407 | pwLock.lock(); |
| 408 | Result result; |
| 409 | long l2TunnelId; |
| 410 | log.debug("Pseudowire with {} deployment started, check log for any errors in this process!", |
| 411 | pw.l2Tunnel().tunnelId()); |
| 412 | l2TunnelId = pw.l2Tunnel().tunnelId(); |
| 413 | // The tunnel id cannot be 0. |
| 414 | if (l2TunnelId == 0) { |
| 415 | log.warn("Tunnel id id must be > 0 in {}", l2TunnelId); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 416 | return Result.WRONG_PARAMETERS |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 417 | .appendError("Tunnel id id must be > 0"); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 418 | } |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 419 | |
| 420 | result = verifyGlobalValidity(pw); |
| 421 | if (result != SUCCESS) { |
| 422 | log.error("Global validity for pseudowire {} is wrong!", l2TunnelId); |
| 423 | return result; |
| 424 | } |
| 425 | |
| 426 | // leafSpinePw determines if this is a leaf-leaf |
| 427 | // or leaf-spine pseudowire |
| 428 | boolean leafSpinePw; |
| 429 | ConnectPoint cp1 = pw.l2TunnelPolicy().cP1(); |
| 430 | ConnectPoint cp2 = pw.l2TunnelPolicy().cP2(); |
| 431 | try { |
| 432 | // differentiate between leaf-leaf pseudowires and leaf-spine |
| 433 | if (!srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 434 | !srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 435 | log.error("Can not deploy pseudowire {} from spine to spine!", l2TunnelId); |
| 436 | return Result.WRONG_PARAMETERS |
| 437 | .appendError("Can not deploy pseudowire from spine to spine!"); |
| 438 | } else if (srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 439 | srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 440 | leafSpinePw = false; |
| 441 | } else { |
| 442 | leafSpinePw = true; |
| 443 | } |
| 444 | } catch (DeviceConfigNotFoundException e) { |
| 445 | log.error("Device for pseudowire {} connection points does not exist in the configuration", l2TunnelId); |
| 446 | return Result.INTERNAL_ERROR |
| 447 | .appendError("Device for pseudowire connection points does not exist in the configuration"); |
| 448 | } |
| 449 | |
| 450 | // reverse the policy in order for leaf switch to be at CP1 |
| 451 | // this will help us for re-using SRLinkWeigher for computing valid paths |
| 452 | L2TunnelPolicy reversedPolicy = reverseL2TunnelPolicy(pw.l2TunnelPolicy()); |
| 453 | if (reversedPolicy == null) { |
| 454 | log.error("Error in reversing policy, device configuration was not found for pseudowire {}.", |
| 455 | l2TunnelId); |
| 456 | return INTERNAL_ERROR |
| 457 | .appendError("Device configuration not found when reversing the policy."); |
| 458 | } |
| 459 | pw.setL2TunnelPolicy(reversedPolicy); |
| 460 | |
| 461 | // get path here, need to use the same for fwd and rev direction |
| 462 | List<Link> path = getPath(pw.l2TunnelPolicy().cP1(), |
| 463 | pw.l2TunnelPolicy().cP2()); |
| 464 | if (path == null) { |
| 465 | log.error("Deploying process : No path between the connection points for pseudowire {}", l2TunnelId); |
| 466 | return PATH_NOT_FOUND.appendError("No path between the connection points for pseudowire!"); |
| 467 | } |
| 468 | |
| 469 | Link fwdNextHop; |
| 470 | Link revNextHop; |
| 471 | if (!isValidPath(path, leafSpinePw)) { |
| 472 | log.error("Deploying process : Path for pseudowire {} is not valid", l2TunnelId); |
| 473 | return INTERNAL_ERROR.appendError("Internal error : path for pseudowire is not valid!"); |
| 474 | } |
| 475 | // oneHope flag is used to determine if we need to |
| 476 | // install transit mpls rules |
| 477 | boolean oneHop = true; |
| 478 | if (path.size() > 1) { |
| 479 | oneHop = false; |
| 480 | } |
| 481 | |
| 482 | fwdNextHop = path.get(0); |
| 483 | revNextHop = reverseLink(path.get(path.size() - 1)); |
| 484 | |
| 485 | pw.l2Tunnel().setPath(path); |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 486 | pw.l2Tunnel().setTransportVlan(srManager.PSEUDOWIRE_VLAN); |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 487 | |
| 488 | // next hops for next objectives |
| 489 | log.info("Deploying process : Establishing forward direction for pseudowire {}", l2TunnelId); |
| 490 | |
| 491 | VlanId egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP1OuterTag(), |
| 492 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 493 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 494 | pw.l2TunnelPolicy().cP2InnerTag()); |
| 495 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 496 | pw.l2TunnelPolicy().cP1(), |
| 497 | pw.l2TunnelPolicy().cP2(), |
| 498 | FWD, |
| 499 | fwdNextHop, |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 500 | oneHop, |
| 501 | egressVlan); |
| 502 | if (result != SUCCESS) { |
| 503 | log.error("Deploying process : Error in deploying pseudowire {} initiation for CP1", l2TunnelId); |
| 504 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire initiation for CP1"); |
| 505 | } |
| 506 | |
| 507 | result = deployPolicy(l2TunnelId, |
| 508 | pw.l2TunnelPolicy().cP1(), |
| 509 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 510 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 511 | egressVlan, |
| 512 | result.getNextId()); |
| 513 | if (result != SUCCESS) { |
| 514 | log.error("Deploying process : Error in deploying pseudowire {} policy for CP1", l2TunnelId); |
| 515 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire policy for CP1"); |
| 516 | } |
| 517 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 518 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 519 | pw.l2TunnelPolicy().cP2(), |
| 520 | egressVlan, |
| 521 | FWD, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 522 | oneHop); |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 523 | |
| 524 | if (result != SUCCESS) { |
| 525 | log.error("Deploying process : Error in deploying pseudowire {} termination for CP1", l2TunnelId); |
| 526 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP1"); |
| 527 | } |
| 528 | |
| 529 | // We establish the reverse tunnel. |
| 530 | log.info("Deploying process : Establishing reverse direction for pseudowire {}", l2TunnelId); |
| 531 | egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP2OuterTag(), |
| 532 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 533 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 534 | pw.l2TunnelPolicy().cP1InnerTag()); |
| 535 | |
| 536 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 537 | pw.l2TunnelPolicy().cP2(), |
| 538 | pw.l2TunnelPolicy().cP1(), |
| 539 | REV, |
| 540 | revNextHop, |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 541 | oneHop, |
| 542 | egressVlan); |
| 543 | if (result != SUCCESS) { |
| 544 | log.error("Deploying process : Error in deploying pseudowire {} initiation for CP2", l2TunnelId); |
| 545 | return Result.INTERNAL_ERROR |
| 546 | .appendError("Error in deploying pseudowire initiation for CP2"); |
| 547 | } |
| 548 | |
| 549 | result = deployPolicy(l2TunnelId, |
| 550 | pw.l2TunnelPolicy().cP2(), |
| 551 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 552 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 553 | egressVlan, |
| 554 | result.getNextId()); |
| 555 | if (result != SUCCESS) { |
| 556 | log.error("Deploying process : Error in deploying policy {} for CP2", l2TunnelId); |
| 557 | return Result.INTERNAL_ERROR |
| 558 | .appendError("Deploying process : Error in deploying policy for CP2"); |
| 559 | } |
| 560 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 561 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 562 | pw.l2TunnelPolicy().cP1(), |
| 563 | egressVlan, |
| 564 | REV, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 565 | oneHop); |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 566 | |
| 567 | if (result != SUCCESS) { |
| 568 | log.error("Deploying process : Error in deploying pseudowire {} termination for CP2", l2TunnelId); |
| 569 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP2"); |
| 570 | } |
| 571 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 572 | log.info("Deploying process : Updating relevant information for pseudowire {}", l2TunnelId); |
| 573 | |
| 574 | // Populate stores as the final step of the process |
| 575 | l2TunnelStore.put(Long.toString(l2TunnelId), pw.l2Tunnel()); |
| 576 | l2PolicyStore.put(Long.toString(l2TunnelId), pw.l2TunnelPolicy()); |
| 577 | |
| 578 | return Result.SUCCESS; |
| 579 | } catch (StorageException.Timeout e) { |
| 580 | log.error("Can not acquire distributed lock for pseudowire {}!", pw.l2Tunnel().tunnelId()); |
| 581 | return Result.INTERNAL_ERROR.appendError("Can not acquire distributed lock!"); |
| 582 | } finally { |
| 583 | // release the lock |
| 584 | pwLock.unlock(); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 585 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 586 | } |
| 587 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 588 | @Override |
| 589 | public Result checkIfPwExists(long tunnelId, boolean pending) { |
| 590 | |
| 591 | List<L2TunnelDescription> pseudowires = getL2Descriptions(pending) |
| 592 | .stream() |
| 593 | .filter(pw -> pw.l2Tunnel().tunnelId() == tunnelId) |
| 594 | .collect(Collectors.toList()); |
| 595 | |
| 596 | if (pseudowires.size() == 0) { |
| 597 | String store = ((pending) ? "pending" : "installed"); |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 598 | log.debug("Pseudowire {} does not exist in {} store", tunnelId, store); |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 599 | return Result.WRONG_PARAMETERS. |
| 600 | appendError("Pseudowire " + tunnelId + " does not exist in " + store); |
| 601 | } else { |
| 602 | return SUCCESS; |
| 603 | } |
| 604 | } |
| 605 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 606 | /** |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 607 | * Tears down connection points of pseudowires. We can either tear down both connection points, |
| 608 | * or each one of them. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 609 | * |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 610 | * @param l2TunnelId The tunnel id for this pseudowire. |
| 611 | * @param tearDownFirst Boolean, true if we want to tear down cp1 |
| 612 | * @param tearDownSecond Boolean, true if we want to tear down cp2 |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 613 | * @param pending Boolean, if true remove only pseudowire from pending stores since no flows/groups |
| 614 | * in the network, else remove flows/groups in the devices also. |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 615 | * @return Result of tearing down the pseudowire, SUCCESS if everything was ok |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 616 | * a descriptive error otherwise. |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 617 | */ |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 618 | private Result tearDownConnectionPoints(long l2TunnelId, boolean tearDownFirst, |
| 619 | boolean tearDownSecond, boolean pending) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 620 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 621 | Result res; |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 622 | CompletableFuture<ObjectiveError> fwdInitNextFuture = new CompletableFuture<>(); |
| 623 | CompletableFuture<ObjectiveError> fwdTermNextFuture = new CompletableFuture<>(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 624 | CompletableFuture<ObjectiveError> revInitNextFuture = new CompletableFuture<>(); |
| 625 | CompletableFuture<ObjectiveError> revTermNextFuture = new CompletableFuture<>(); |
| 626 | |
| 627 | if (l2TunnelId == 0) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 628 | log.error("Removal process : Tunnel id cannot be 0"); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 629 | return Result.WRONG_PARAMETERS.appendError("Pseudowire id can not be 0."); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 630 | } |
| 631 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 632 | res = checkIfPwExists(l2TunnelId, pending); |
| 633 | if (res != Result.SUCCESS) { |
| 634 | return res; |
| 635 | } |
| 636 | |
| 637 | // remove and get the tunnel and the policy from the appropriate store |
| 638 | // if null, return error. |
| 639 | Versioned<L2Tunnel> l2TunnelVersioned = pending ? |
| 640 | pendingL2TunnelStore.remove(Long.toString(l2TunnelId)) : |
| 641 | l2TunnelStore.remove(Long.toString(l2TunnelId)); |
| 642 | Versioned<L2TunnelPolicy> l2TunnelPolicyVersioned = pending ? |
| 643 | pendingL2PolicyStore.remove(Long.toString(l2TunnelId)) : |
| 644 | l2PolicyStore.remove(Long.toString(l2TunnelId)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 645 | if ((l2TunnelVersioned == null) || (l2TunnelPolicyVersioned == null)) { |
| 646 | 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] | 647 | return Result.INTERNAL_ERROR |
| 648 | .appendError("Policy and/or tunnel missing for pseudowire!"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | L2TunnelDescription pwToRemove = new DefaultL2TunnelDescription(l2TunnelVersioned.value(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 652 | l2TunnelPolicyVersioned.value()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 653 | |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 654 | if (pending) { |
| 655 | // no need to remove flows / groups for a pseudowire |
| 656 | // in pending state |
| 657 | return Result.SUCCESS; |
| 658 | } |
| 659 | |
| 660 | // remove flows/groups involving with this pseudowire |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 661 | if (tearDownFirst) { |
| 662 | log.info("Removal process : Tearing down forward direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 663 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 664 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 665 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 666 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 667 | pwToRemove.l2TunnelPolicy().cP2InnerTag()); |
| 668 | deletePolicy(l2TunnelId, |
| 669 | pwToRemove.l2TunnelPolicy().cP1(), |
| 670 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 671 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 672 | egressVlan, |
| 673 | fwdInitNextFuture, |
| 674 | FWD); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 675 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 676 | fwdInitNextFuture.thenAcceptAsync(status -> { |
| 677 | if (status == null) { |
| 678 | // Finally we will tear down the pseudo wire. |
| 679 | tearDownPseudoWireInit(l2TunnelId, |
| 680 | pwToRemove.l2TunnelPolicy().cP1(), |
| 681 | fwdTermNextFuture, |
| 682 | FWD); |
| 683 | } |
| 684 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 685 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 686 | fwdTermNextFuture.thenAcceptAsync(status -> { |
| 687 | if (status == null) { |
| 688 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 689 | pwToRemove.l2TunnelPolicy().cP2(), |
| 690 | null, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 691 | FWD); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 692 | } |
| 693 | }); |
| 694 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 695 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 696 | if (tearDownSecond) { |
| 697 | log.info("Removal process : Tearing down reverse direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 698 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 699 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 700 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 701 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 702 | pwToRemove.l2TunnelPolicy().cP1InnerTag()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 703 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 704 | // We do the same operations on the reverse side. |
| 705 | deletePolicy(l2TunnelId, |
| 706 | pwToRemove.l2TunnelPolicy().cP2(), |
| 707 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 708 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 709 | egressVlan, |
| 710 | revInitNextFuture, |
| 711 | REV); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 712 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 713 | revInitNextFuture.thenAcceptAsync(status -> { |
| 714 | if (status == null) { |
| 715 | tearDownPseudoWireInit(l2TunnelId, |
| 716 | pwToRemove.l2TunnelPolicy().cP2(), |
| 717 | revTermNextFuture, |
| 718 | REV); |
| 719 | } |
| 720 | }); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 721 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 722 | revTermNextFuture.thenAcceptAsync(status -> { |
| 723 | if (status == null) { |
| 724 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 725 | pwToRemove.l2TunnelPolicy().cP1(), |
| 726 | null, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 727 | REV); |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 728 | } |
| 729 | }); |
| 730 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 731 | |
| 732 | return Result.SUCCESS; |
| 733 | } |
| 734 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 735 | /** |
| 736 | * Helper function for removing a single pseudowire. |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 737 | * |
| 738 | * 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] | 739 | * |
| 740 | * @param l2TunnelId the id of the pseudowire to tear down |
| 741 | * @return Returns SUCCESS if no error is obeserved or an appropriate |
| 742 | * error on a failure |
| 743 | */ |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 744 | public Result tearDownPseudowire(long l2TunnelId) { |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 745 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 746 | try { |
| 747 | // take the lock |
| 748 | pwLock.lock(); |
| 749 | |
| 750 | if (checkIfPwExists(l2TunnelId, true) == Result.SUCCESS) { |
| 751 | return tearDownConnectionPoints(l2TunnelId, true, true, true); |
| 752 | } else if (checkIfPwExists(l2TunnelId, false) == Result.SUCCESS) { |
| 753 | return tearDownConnectionPoints(l2TunnelId, true, true, false); |
| 754 | } else { |
| 755 | return Result.WRONG_PARAMETERS.appendError("Pseudowire with " |
| 756 | + l2TunnelId |
| 757 | + " did not reside in any store!"); |
| 758 | } |
| 759 | } catch (StorageException.Timeout e) { |
| 760 | log.error("Can not acquire distributed lock for pseudowire {}!", l2TunnelId); |
| 761 | return Result.INTERNAL_ERROR.appendError("Can not acquire distributed lock!"); |
| 762 | } finally { |
| 763 | // release the lock |
| 764 | pwLock.unlock(); |
Andreas Pantelopoulos | 935d59d | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 765 | } |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 766 | } |
| 767 | |
Yuta HIGUCHI | e7e71a8 | 2018-05-18 16:36:43 -0700 | [diff] [blame] | 768 | @Override |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 769 | @Deprecated |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 770 | public void tearDown(Set<L2TunnelDescription> pwToRemove) { |
| 771 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 772 | for (L2TunnelDescription currentL2Tunnel : pwToRemove) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 773 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 774 | long tunnelId = currentL2Tunnel.l2TunnelPolicy().tunnelId(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 775 | log.info("Removing pseudowire {}", tunnelId); |
| 776 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 777 | Result result = tearDownPseudowire(tunnelId); |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 778 | if (result != Result.SUCCESS) { |
| 779 | log.error("Could not remove pseudowire {}!", tunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 780 | } |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | /** |
| 785 | * Handles the policy establishment which consists in |
| 786 | * create the filtering and forwarding objectives related |
| 787 | * to the initiation and termination. |
| 788 | * |
| 789 | * @param tunnelId the tunnel id |
| 790 | * @param ingress the ingress point |
| 791 | * @param ingressInner the ingress inner tag |
| 792 | * @param ingressOuter the ingress outer tag |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 793 | * @param egressVlan Vlan-id to set, depends on ingress vlan |
| 794 | * combinations. For example, if pw is double tagged |
| 795 | * then this is the value of the outer vlan, if single |
| 796 | * tagged then it is the new value of the single tag. |
| 797 | * Should be None for untagged traffic. |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 798 | * @param nextId the next objective id |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 799 | * @return the result of the operation |
| 800 | */ |
| 801 | private Result deployPolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, |
| 802 | VlanId ingressOuter, VlanId egressVlan, int nextId) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 803 | log.debug("Starting deploying policy for pseudowire {}.", tunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 804 | |
| 805 | List<Objective> objectives = Lists.newArrayList(); |
| 806 | // We create the forwarding objective for supporting |
| 807 | // the l2 tunnel. |
| 808 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 809 | // We create and add objective context. |
| 810 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 811 | log.debug("FwdObj for tunnel {} populated", tunnelId), |
| 812 | (objective, error) -> |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 813 | log.warn("Failed to populate fwdObj " + |
| 814 | "for tunnel {} : {}", |
| 815 | tunnelId, error)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 816 | objectives.add(fwdBuilder.add(context)); |
| 817 | |
| 818 | // We create the filtering objective to define the |
| 819 | // permit traffic in the switch |
| 820 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 821 | |
| 822 | // We add the metadata. |
| 823 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 824 | .builder() |
| 825 | .setTunnelId(tunnelId) |
| 826 | .setVlanId(egressVlan); |
| 827 | filtBuilder.withMeta(treatment.build()); |
| 828 | |
| 829 | // We create and add objective context. |
| 830 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for tunnel {} populated", tunnelId), |
| 831 | (objective, error) -> log.warn("Failed to populate filterObj for " + |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 832 | "tunnel {} : {}", |
| 833 | tunnelId, error)); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 834 | objectives.add(filtBuilder.add(context)); |
| 835 | |
| 836 | for (Objective objective : objectives) { |
| 837 | if (objective instanceof ForwardingObjective) { |
| 838 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 839 | log.debug("Creating new FwdObj for initiation NextObj with id={} for tunnel {}", nextId, tunnelId); |
| 840 | } else { |
| 841 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 842 | log.debug("Creating new FiltObj for tunnel {}", tunnelId); |
| 843 | } |
| 844 | } |
| 845 | return SUCCESS; |
| 846 | } |
| 847 | |
| 848 | /** |
| 849 | * Handles the tunnel establishment which consists in |
| 850 | * create the next objectives related to the initiation. |
| 851 | * |
| 852 | * @param l2Tunnel the tunnel to deploy |
| 853 | * @param ingress the ingress connect point |
| 854 | * @param egress the egress connect point |
| 855 | * @param direction the direction of the pw |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 856 | * @param nextHop next hop of the initiation point |
| 857 | * @param oneHop if this pseudowire has only one link |
| 858 | * @param termVlanId the termination vlan id |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 859 | * @return the result of the operation |
| 860 | */ |
| 861 | private Result deployPseudoWireInit(L2Tunnel l2Tunnel, ConnectPoint ingress, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 862 | ConnectPoint egress, Direction direction, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 863 | Link nextHop, boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 864 | log.debug("Started deploying init next objectives for pseudowire {} for tunnel {} -> {}.", |
| 865 | l2Tunnel.tunnelId(), ingress, egress); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 866 | if (nextHop == null) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 867 | log.warn("No path between ingress and egress connection points for tunnel {}", l2Tunnel.tunnelId()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 868 | return WRONG_PARAMETERS; |
| 869 | } |
| 870 | |
| 871 | // We create the next objective without the metadata |
| 872 | // context and id. We check if it already exists in the |
| 873 | // store. If not we store as it is in the store. |
| 874 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(INITIATION, |
| 875 | nextHop.src(), |
| 876 | nextHop.dst(), |
| 877 | l2Tunnel, |
| 878 | egress.deviceId(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 879 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 880 | termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 881 | |
| 882 | if (nextObjectiveBuilder == null) { |
| 883 | return INTERNAL_ERROR; |
| 884 | } |
| 885 | // We set the metadata. We will use this metadata |
| 886 | // to inform the driver we are doing a l2 tunnel. |
| 887 | TrafficSelector metadata = DefaultTrafficSelector |
| 888 | .builder() |
| 889 | .matchTunnelId(l2Tunnel.tunnelId()) |
| 890 | .build(); |
| 891 | nextObjectiveBuilder.withMeta(metadata); |
| 892 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 893 | if (nextId < 0) { |
| 894 | log.warn("Not able to allocate a next id for initiation"); |
| 895 | return INTERNAL_ERROR; |
| 896 | } |
| 897 | nextObjectiveBuilder.withId(nextId); |
| 898 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 899 | l2InitiationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 900 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 901 | log.debug("Initiation l2 tunnel rule " + |
| 902 | "for {} populated", |
| 903 | l2Tunnel.tunnelId()), |
| 904 | (objective, error) -> |
| 905 | log.warn("Failed to populate Initiation " + |
| 906 | "l2 tunnel rule for {}: {}", |
| 907 | l2Tunnel.tunnelId(), error)); |
| 908 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 909 | srManager.flowObjectiveService.next(ingress.deviceId(), nextObjective); |
| 910 | log.debug("Initiation next objective for {} not found. Creating new NextObj with id={}", |
| 911 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 912 | Result result = SUCCESS; |
Andreas Pantelopoulos | daf02c8 | 2018-04-04 11:16:56 -0700 | [diff] [blame] | 913 | result.setNextId(nextObjective.id()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 914 | return result; |
| 915 | } |
| 916 | |
| 917 | /** |
| 918 | * Handles the tunnel termination, which consists in the creation |
| 919 | * of a forwarding objective and a next objective. |
| 920 | * |
| 921 | * @param l2Tunnel the tunnel to terminate |
| 922 | * @param egress the egress point |
| 923 | * @param egressVlan the expected vlan at egress |
| 924 | * @param direction the direction |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 925 | * @return the result of the operation |
| 926 | */ |
| 927 | private Result deployPseudoWireTerm(L2Tunnel l2Tunnel, ConnectPoint egress, |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 928 | VlanId egressVlan, Direction direction, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 929 | boolean oneHop) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 930 | log.debug("Started deploying termination objectives for pseudowire {} , direction {}.", |
| 931 | l2Tunnel.tunnelId(), direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 932 | |
| 933 | // We create the group relative to the termination. |
| 934 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(TERMINATION, egress, null, |
| 935 | l2Tunnel, egress.deviceId(), |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 936 | oneHop, |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 937 | egressVlan); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 938 | if (nextObjectiveBuilder == null) { |
| 939 | return INTERNAL_ERROR; |
| 940 | } |
| 941 | TrafficSelector metadata = DefaultTrafficSelector |
| 942 | .builder() |
| 943 | .matchVlanId(egressVlan) |
| 944 | .build(); |
| 945 | nextObjectiveBuilder.withMeta(metadata); |
| 946 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 947 | if (nextId < 0) { |
| 948 | log.warn("Not able to allocate a next id for initiation"); |
| 949 | return INTERNAL_ERROR; |
| 950 | } |
| 951 | nextObjectiveBuilder.withId(nextId); |
| 952 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 953 | l2TerminationNextObjStore.put(key, nextObjectiveBuilder.add()); |
| 954 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> log.debug("Termination l2 tunnel rule " + |
| 955 | "for {} populated", |
| 956 | l2Tunnel.tunnelId()), |
| 957 | (objective, error) -> log.warn("Failed to populate " + |
| 958 | "termination l2 tunnel " + |
| 959 | "rule for {}: {}", |
| 960 | l2Tunnel.tunnelId(), |
| 961 | error)); |
| 962 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 963 | srManager.flowObjectiveService.next(egress.deviceId(), nextObjective); |
| 964 | log.debug("Termination next objective for {} not found. Creating new NextObj with id={}", |
| 965 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 966 | |
| 967 | // We create the flow relative to the termination. |
| 968 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), l2Tunnel.tunnelId(), |
| 969 | egress.port(), nextObjective.id()); |
| 970 | context = new DefaultObjectiveContext((objective) -> log.debug("FwdObj for tunnel termination {} populated", |
| 971 | l2Tunnel.tunnelId()), |
| 972 | (objective, error) -> log.warn("Failed to populate fwdrObj" + |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 973 | " for tunnel termination {} : {}", |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 974 | l2Tunnel.tunnelId(), error)); |
| 975 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.add(context)); |
| 976 | log.debug("Creating new FwdObj for termination NextObj with id={} for tunnel {}", |
| 977 | nextId, l2Tunnel.tunnelId()); |
| 978 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 979 | return SUCCESS; |
| 980 | } |
| 981 | |
| 982 | |
| 983 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 984 | * Creates the filtering objective according to a given policy. |
| 985 | * |
| 986 | * @param inPort the in port |
| 987 | * @param innerTag the inner vlan tag |
| 988 | * @param outerTag the outer vlan tag |
| 989 | * @return the filtering objective |
| 990 | */ |
| 991 | private FilteringObjective.Builder createFiltObjective(PortNumber inPort, VlanId innerTag, VlanId outerTag) { |
| 992 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 993 | log.debug("Creating connection point filtering objective for vlans {} / {}", outerTag, innerTag); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 994 | return DefaultFilteringObjective |
| 995 | .builder() |
| 996 | .withKey(Criteria.matchInPort(inPort)) |
| 997 | .addCondition(Criteria.matchInnerVlanId(innerTag)) |
| 998 | .addCondition(Criteria.matchVlanId(outerTag)) |
| 999 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1000 | .permit() |
| 1001 | .fromApp(srManager.appId()); |
| 1002 | } |
| 1003 | |
| 1004 | /** |
| 1005 | * Creates the forwarding objective for the termination. |
| 1006 | * |
| 1007 | * @param pwLabel the pseudo wire label |
| 1008 | * @param tunnelId the tunnel id |
| 1009 | * @param egressPort the egress port |
| 1010 | * @param nextId the next step |
| 1011 | * @return the forwarding objective to support the termination |
| 1012 | */ |
| 1013 | private ForwardingObjective.Builder createTermFwdObjective(MplsLabel pwLabel, long tunnelId, |
| 1014 | PortNumber egressPort, int nextId) { |
| 1015 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1016 | log.debug("Creating forwarding objective for termination for tunnel {} : pwLabel {}, egressPort {}, nextId {}", |
| 1017 | tunnelId, pwLabel, egressPort, nextId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1018 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1019 | TrafficTreatment.Builder trafficTreatment = DefaultTrafficTreatment.builder(); |
| 1020 | // The flow has to match on the pw label and bos |
| 1021 | trafficSelector.matchEthType(Ethernet.MPLS_UNICAST); |
| 1022 | trafficSelector.matchMplsLabel(pwLabel); |
| 1023 | trafficSelector.matchMplsBos(true); |
| 1024 | // The flow has to decrement ttl, restore ttl in |
| 1025 | // pop mpls, set tunnel id and port. |
| 1026 | trafficTreatment.decMplsTtl(); |
| 1027 | trafficTreatment.copyTtlIn(); |
| 1028 | trafficTreatment.popMpls(); |
| 1029 | trafficTreatment.setTunnelId(tunnelId); |
| 1030 | trafficTreatment.setOutput(egressPort); |
| 1031 | |
| 1032 | return DefaultForwardingObjective |
| 1033 | .builder() |
| 1034 | .fromApp(srManager.appId()) |
| 1035 | .makePermanent() |
| 1036 | .nextStep(nextId) |
| 1037 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1038 | .withSelector(trafficSelector.build()) |
| 1039 | .withTreatment(trafficTreatment.build()) |
| 1040 | .withFlag(VERSATILE); |
| 1041 | } |
| 1042 | |
| 1043 | /** |
| 1044 | * Creates the forwarding objective for the initiation. |
| 1045 | * |
| 1046 | * @param tunnelId the tunnel id |
| 1047 | * @param inPort the input port |
| 1048 | * @param nextId the next step |
| 1049 | * @return the forwarding objective to support the initiation. |
| 1050 | */ |
| 1051 | private ForwardingObjective.Builder createInitFwdObjective(long tunnelId, PortNumber inPort, int nextId) { |
| 1052 | |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1053 | log.debug("Creating forwarding objective for tunnel {} : Port {} , nextId {}", tunnelId, inPort, nextId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1054 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1055 | |
| 1056 | // The flow has to match on the mpls logical |
| 1057 | // port and the tunnel id. |
| 1058 | trafficSelector.matchTunnelId(tunnelId); |
| 1059 | trafficSelector.matchInPort(inPort); |
| 1060 | |
| 1061 | return DefaultForwardingObjective |
| 1062 | .builder() |
| 1063 | .fromApp(srManager.appId()) |
| 1064 | .makePermanent() |
| 1065 | .nextStep(nextId) |
| 1066 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1067 | .withSelector(trafficSelector.build()) |
| 1068 | .withFlag(VERSATILE); |
| 1069 | |
| 1070 | } |
| 1071 | |
| 1072 | /** |
| 1073 | * Creates the next objective according to a given |
| 1074 | * pipeline. We don't set the next id and we don't |
| 1075 | * create the final meta to check if we are re-using |
| 1076 | * the same next objective for different tunnels. |
| 1077 | * |
| 1078 | * @param pipeline the pipeline to support |
| 1079 | * @param srcCp the source port |
| 1080 | * @param dstCp the destination port |
| 1081 | * @param l2Tunnel the tunnel to support |
| 1082 | * @param egressId the egress device id |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1083 | * @param oneHop if the pw only has one hop, push only pw label |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1084 | * @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] | 1085 | * @return the next objective to support the pipeline |
| 1086 | */ |
| 1087 | private NextObjective.Builder createNextObjective(Pipeline pipeline, ConnectPoint srcCp, |
| 1088 | ConnectPoint dstCp, L2Tunnel l2Tunnel, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 1089 | DeviceId egressId, boolean oneHop, |
| 1090 | VlanId termVlanId) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1091 | log.debug("Creating {} next objective for pseudowire {}.", |
| 1092 | pipeline == TERMINATION ? "termination" : "inititation"); |
| 1093 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1094 | NextObjective.Builder nextObjBuilder; |
| 1095 | TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); |
| 1096 | if (pipeline == INITIATION) { |
| 1097 | nextObjBuilder = DefaultNextObjective |
| 1098 | .builder() |
| 1099 | .withType(NextObjective.Type.SIMPLE) |
| 1100 | .fromApp(srManager.appId()); |
| 1101 | // The pw label is the bottom of stack. It has to |
| 1102 | // be different -1. |
| 1103 | if (l2Tunnel.pwLabel().toInt() == MplsLabel.MAX_MPLS) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1104 | log.error("Pw label not configured"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1105 | return null; |
| 1106 | } |
| 1107 | treatmentBuilder.pushMpls(); |
| 1108 | treatmentBuilder.setMpls(l2Tunnel.pwLabel()); |
| 1109 | treatmentBuilder.setMplsBos(true); |
| 1110 | treatmentBuilder.copyTtlOut(); |
| 1111 | |
| 1112 | // If the inter-co label is present we have to set the label. |
| 1113 | if (l2Tunnel.interCoLabel().toInt() != MplsLabel.MAX_MPLS) { |
| 1114 | treatmentBuilder.pushMpls(); |
| 1115 | treatmentBuilder.setMpls(l2Tunnel.interCoLabel()); |
| 1116 | treatmentBuilder.setMplsBos(false); |
| 1117 | treatmentBuilder.copyTtlOut(); |
| 1118 | } |
| 1119 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1120 | // if not oneHop install transit mpls labels also |
| 1121 | if (!oneHop) { |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1122 | // We retrieve the sr label from the config |
| 1123 | // specific for pseudowire traffic |
| 1124 | // using the egress leaf device id. |
| 1125 | MplsLabel srLabel; |
| 1126 | try { |
| 1127 | srLabel = MplsLabel.mplsLabel(srManager.deviceConfiguration().getPWRoutingLabel(egressId)); |
| 1128 | |
| 1129 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1130 | log.error("Sr label for pw traffic not configured"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1131 | return null; |
| 1132 | } |
| 1133 | |
| 1134 | treatmentBuilder.pushMpls(); |
| 1135 | treatmentBuilder.setMpls(srLabel); |
| 1136 | treatmentBuilder.setMplsBos(false); |
| 1137 | treatmentBuilder.copyTtlOut(); |
| 1138 | } |
| 1139 | |
| 1140 | // We have to rewrite the src and dst mac address. |
| 1141 | MacAddress ingressMac; |
| 1142 | try { |
| 1143 | ingressMac = srManager.deviceConfiguration().getDeviceMac(srcCp.deviceId()); |
| 1144 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1145 | log.error("Was not able to find the ingress mac"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1146 | return null; |
| 1147 | } |
| 1148 | treatmentBuilder.setEthSrc(ingressMac); |
| 1149 | MacAddress neighborMac; |
| 1150 | try { |
| 1151 | neighborMac = srManager.deviceConfiguration().getDeviceMac(dstCp.deviceId()); |
| 1152 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1153 | log.error("Was not able to find the neighbor mac"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1154 | return null; |
| 1155 | } |
| 1156 | treatmentBuilder.setEthDst(neighborMac); |
| 1157 | |
Andreas Pantelopoulos | 811bbae | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1158 | // set the appropriate transport vlan from tunnel information |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1159 | treatmentBuilder.setVlanId(l2Tunnel.transportVlan()); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1160 | } else { |
| 1161 | // We create the next objective which |
| 1162 | // will be a simple l2 group. |
| 1163 | nextObjBuilder = DefaultNextObjective |
| 1164 | .builder() |
| 1165 | .withType(NextObjective.Type.SIMPLE) |
| 1166 | .fromApp(srManager.appId()); |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1167 | |
| 1168 | // for termination point we use the outer vlan of the |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 1169 | // encapsulated packet for the vlan |
Andreas Pantelopoulos | 1e61db5 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1170 | treatmentBuilder.setVlanId(termVlanId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1171 | } |
| 1172 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1173 | treatmentBuilder.setOutput(srcCp.port()); |
| 1174 | nextObjBuilder.addTreatment(treatmentBuilder.build()); |
| 1175 | return nextObjBuilder; |
| 1176 | } |
| 1177 | |
| 1178 | /** |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1179 | * Reverse an l2 tunnel policy in order to have as CP1 the leaf switch, |
| 1180 | * in case one of the switches is a spine. |
| 1181 | * |
| 1182 | * This makes possible the usage of SRLinkWeigher for computing valid paths, |
| 1183 | * which cuts leaf-spine links from the path computation with a src different |
| 1184 | * than the source leaf. |
| 1185 | * |
| 1186 | * @param policy The policy to reverse, if needed |
| 1187 | * @return a l2TunnelPolicy containing the leaf at CP1, suitable for usage with |
| 1188 | * current SRLinkWeigher |
| 1189 | */ |
| 1190 | private L2TunnelPolicy reverseL2TunnelPolicy(L2TunnelPolicy policy) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1191 | |
| 1192 | log.debug("Reversing policy for pseudowire."); |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1193 | try { |
| 1194 | // if cp1 is a leaf, just return |
| 1195 | if (srManager.deviceConfiguration().isEdgeDevice(policy.cP1().deviceId())) { |
| 1196 | return policy; |
| 1197 | } else { |
| 1198 | // return a policy with reversed cp1 and cp2, and also with reversed tags |
| 1199 | return new DefaultL2TunnelPolicy(policy.tunnelId(), |
| 1200 | policy.cP2(), policy.cP2InnerTag(), policy.cP2OuterTag(), |
| 1201 | policy.cP1(), policy.cP1InnerTag(), policy.cP1OuterTag()); |
| 1202 | |
| 1203 | } |
| 1204 | } catch (DeviceConfigNotFoundException e) { |
| 1205 | // should never come here, since it has been checked before |
| 1206 | log.error("Configuration for device {}, does not exist!"); |
| 1207 | return null; |
| 1208 | } |
| 1209 | } |
| 1210 | |
| 1211 | /** |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1212 | * Reverses a link. |
| 1213 | * |
| 1214 | * @param link link to be reversed |
| 1215 | * @return the reversed link |
| 1216 | */ |
| 1217 | private Link reverseLink(Link link) { |
| 1218 | |
| 1219 | DefaultLink.Builder linkBuilder = DefaultLink.builder(); |
| 1220 | |
| 1221 | linkBuilder.src(link.dst()); |
| 1222 | linkBuilder.dst(link.src()); |
| 1223 | linkBuilder.type(link.type()); |
| 1224 | linkBuilder.providerId(link.providerId()); |
| 1225 | |
| 1226 | return linkBuilder.build(); |
| 1227 | } |
| 1228 | |
| 1229 | /** |
| 1230 | * Returns the path betwwen two connect points. |
| 1231 | * |
| 1232 | * @param srcCp source connect point |
| 1233 | * @param dstCp destination connect point |
| 1234 | * @return the path |
| 1235 | */ |
| 1236 | private List<Link> getPath(ConnectPoint srcCp, ConnectPoint dstCp) { |
Andreas Pantelopoulos | 0616c56 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1237 | |
| 1238 | // use SRLinkWeigher to avoid pair links, and also |
| 1239 | // avoid going from the spine to the leaf and to the |
| 1240 | // spine again, we need to have the leaf as CP1 here. |
| 1241 | LinkWeigher srLw = new SRLinkWeigher(srManager, srcCp.deviceId(), new HashSet<Link>()); |
| 1242 | |
| 1243 | Set<Path> paths = srManager.topologyService. |
| 1244 | getPaths(srManager.topologyService.currentTopology(), |
| 1245 | srcCp.deviceId(), dstCp.deviceId(), srLw); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1246 | |
| 1247 | log.debug("Paths obtained from topology service {}", paths); |
| 1248 | |
| 1249 | // We randomly pick a path. |
| 1250 | if (paths.isEmpty()) { |
| 1251 | return null; |
| 1252 | } |
| 1253 | int size = paths.size(); |
| 1254 | int index = RandomUtils.nextInt(0, size); |
| 1255 | |
| 1256 | List<Link> result = Iterables.get(paths, index).links(); |
| 1257 | log.debug("Randomly picked a path {}", result); |
| 1258 | |
| 1259 | return result; |
| 1260 | } |
| 1261 | |
| 1262 | /** |
| 1263 | * Deletes a given policy using the parameter supplied. |
| 1264 | * |
| 1265 | * @param tunnelId the tunnel id |
| 1266 | * @param ingress the ingress point |
| 1267 | * @param ingressInner the ingress inner vlan id |
| 1268 | * @param ingressOuter the ingress outer vlan id |
| 1269 | * @param future to perform the async operation |
| 1270 | * @param direction the direction: forward or reverse |
| 1271 | */ |
| 1272 | private void deletePolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, VlanId ingressOuter, |
| 1273 | VlanId egressVlan, CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1274 | |
| 1275 | String key = generateKey(tunnelId, direction); |
| 1276 | if (!l2InitiationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1277 | log.error("Abort delete of policy for tunnel {}: next does not exist in the store", tunnelId); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1278 | if (future != null) { |
| 1279 | future.complete(null); |
| 1280 | } |
| 1281 | return; |
| 1282 | } |
| 1283 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
| 1284 | int nextId = nextObjective.id(); |
| 1285 | List<Objective> objectives = Lists.newArrayList(); |
| 1286 | // We create the forwarding objective. |
| 1287 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 1288 | ObjectiveContext context = new ObjectiveContext() { |
| 1289 | @Override |
| 1290 | public void onSuccess(Objective objective) { |
| 1291 | log.debug("Previous fwdObj for policy {} removed", tunnelId); |
| 1292 | if (future != null) { |
| 1293 | future.complete(null); |
| 1294 | } |
| 1295 | } |
| 1296 | |
| 1297 | @Override |
| 1298 | public void onError(Objective objective, ObjectiveError error) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1299 | log.error("Failed to remove previous fwdObj for policy {}: {}", tunnelId, error); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1300 | if (future != null) { |
| 1301 | future.complete(error); |
| 1302 | } |
| 1303 | } |
| 1304 | }; |
| 1305 | objectives.add(fwdBuilder.remove(context)); |
| 1306 | // We create the filtering objective to define the |
| 1307 | // permit traffic in the switch |
| 1308 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 1309 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 1310 | .builder() |
| 1311 | .setTunnelId(tunnelId) |
| 1312 | .setVlanId(egressVlan); |
| 1313 | filtBuilder.withMeta(treatment.build()); |
| 1314 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for policy {} revoked", tunnelId), |
| 1315 | (objective, error) -> |
| 1316 | log.warn("Failed to revoke filterObj for policy {}", |
| 1317 | tunnelId, error)); |
| 1318 | objectives.add(filtBuilder.remove(context)); |
| 1319 | |
| 1320 | for (Objective objective : objectives) { |
| 1321 | if (objective instanceof ForwardingObjective) { |
| 1322 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 1323 | } else { |
| 1324 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 1325 | } |
| 1326 | } |
| 1327 | } |
| 1328 | |
| 1329 | /** |
| 1330 | * Deletes the pseudo wire initiation. |
| 1331 | * |
| 1332 | * @param l2TunnelId the tunnel id |
| 1333 | * @param ingress the ingress connect point |
| 1334 | * @param future to perform an async operation |
| 1335 | * @param direction the direction: reverse of forward |
| 1336 | */ |
| 1337 | private void tearDownPseudoWireInit(long l2TunnelId, ConnectPoint ingress, |
| 1338 | CompletableFuture<ObjectiveError> future, Direction direction) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1339 | log.debug("Starting tearing dowing initation of pseudowire {} for direction {}.", |
| 1340 | l2TunnelId, direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1341 | String key = generateKey(l2TunnelId, direction); |
| 1342 | if (!l2InitiationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1343 | log.error("Abort delete of {} for {}: next does not exist in the store", INITIATION, key); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1344 | if (future != null) { |
| 1345 | future.complete(null); |
| 1346 | } |
| 1347 | return; |
| 1348 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1349 | |
| 1350 | // un-comment in case you want to delete groups used by the pw |
| 1351 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1352 | // not be deleted (it is referenced by other groups) |
| 1353 | /* |
Andreas Pantelopoulos | ffe6974 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 1354 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1355 | ObjectiveContext context = new ObjectiveContext() { |
| 1356 | @Override |
| 1357 | public void onSuccess(Objective objective) { |
| 1358 | log.debug("Previous {} next for {} removed", INITIATION, key); |
| 1359 | if (future != null) { |
| 1360 | future.complete(null); |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | @Override |
| 1365 | public void onError(Objective objective, ObjectiveError error) { |
| 1366 | log.warn("Failed to remove previous {} next for {}: {}", INITIATION, key, error); |
| 1367 | if (future != null) { |
| 1368 | future.complete(error); |
| 1369 | } |
| 1370 | } |
| 1371 | }; |
| 1372 | srManager.flowObjectiveService.next(ingress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1373 | */ |
| 1374 | |
| 1375 | future.complete(null); |
| 1376 | l2InitiationNextObjStore.remove(key); |
| 1377 | } |
| 1378 | |
| 1379 | /** |
| 1380 | * Deletes the pseudo wire termination. |
| 1381 | * |
| 1382 | * @param l2Tunnel the tunnel |
| 1383 | * @param egress the egress connect point |
| 1384 | * @param future the async task |
| 1385 | * @param direction the direction of the tunnel |
| 1386 | */ |
| 1387 | private void tearDownPseudoWireTerm(L2Tunnel l2Tunnel, |
| 1388 | ConnectPoint egress, |
| 1389 | CompletableFuture<ObjectiveError> future, |
Andreas Pantelopoulos | 7fba877 | 2018-05-02 16:21:20 -0700 | [diff] [blame^] | 1390 | Direction direction) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1391 | log.debug("Starting tearing down termination for pseudowire {} direction {}.", |
| 1392 | l2Tunnel.tunnelId(), direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1393 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1394 | if (!l2TerminationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | 5bf1366 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1395 | log.error("Abort delete of {} for {}: next does not exist in the store", TERMINATION, key); |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1396 | if (future != null) { |
| 1397 | future.complete(null); |
| 1398 | } |
| 1399 | return; |
| 1400 | } |
| 1401 | NextObjective nextObjective = l2TerminationNextObjStore.get(key).value(); |
| 1402 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), |
| 1403 | l2Tunnel.tunnelId(), |
| 1404 | egress.port(), |
| 1405 | nextObjective.id()); |
| 1406 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1407 | log.debug("FwdObj for {} {}, " + |
| 1408 | "direction {} removed", |
| 1409 | TERMINATION, |
| 1410 | l2Tunnel.tunnelId(), |
| 1411 | direction), |
| 1412 | (objective, error) -> |
| 1413 | log.warn("Failed to remove fwdObj " + |
| 1414 | "for {} {}" + |
| 1415 | ", direction {}", |
| 1416 | TERMINATION, |
| 1417 | l2Tunnel.tunnelId(), |
| 1418 | error, |
| 1419 | direction)); |
| 1420 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.remove(context)); |
| 1421 | |
| 1422 | // un-comment in case you want to delete groups used by the pw |
| 1423 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1424 | // not be deleted (it is referenced by other groups) |
| 1425 | /* |
| 1426 | context = new ObjectiveContext() { |
| 1427 | @Override |
| 1428 | public void onSuccess(Objective objective) { |
| 1429 | log.debug("Previous {} next for {} removed", TERMINATION, key); |
| 1430 | if (future != null) { |
| 1431 | future.complete(null); |
| 1432 | } |
| 1433 | } |
| 1434 | |
| 1435 | @Override |
| 1436 | public void onError(Objective objective, ObjectiveError error) { |
| 1437 | log.warn("Failed to remove previous {} next for {}: {}", TERMINATION, key, error); |
| 1438 | if (future != null) { |
| 1439 | future.complete(error); |
| 1440 | } |
| 1441 | } |
| 1442 | }; |
| 1443 | srManager.flowObjectiveService.next(egress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1444 | */ |
| 1445 | |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1446 | l2TerminationNextObjStore.remove(key); |
| 1447 | future.complete(null); |
| 1448 | } |
| 1449 | |
| 1450 | /** |
| 1451 | * Utilities to generate pw key. |
| 1452 | * |
| 1453 | * @param tunnelId the tunnel id |
| 1454 | * @param direction the direction of the pw |
| 1455 | * @return the key of the store |
| 1456 | */ |
| 1457 | private String generateKey(long tunnelId, Direction direction) { |
| 1458 | return String.format("%s-%s", tunnelId, direction); |
| 1459 | } |
Andreas Pantelopoulos | b21547d | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1460 | } |