Andreas Pantelopoulos | 4c7de13 | 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 | |
Charles Chan | 0b1dd7e | 2018-08-19 19:21:46 -0700 | [diff] [blame] | 19 | import com.google.common.collect.ImmutableMap; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 20 | import com.google.common.collect.Iterables; |
| 21 | import com.google.common.collect.Lists; |
| 22 | import org.apache.commons.lang3.RandomUtils; |
| 23 | import org.onlab.packet.Ethernet; |
| 24 | import org.onlab.packet.MacAddress; |
| 25 | import org.onlab.packet.MplsLabel; |
| 26 | import org.onlab.packet.VlanId; |
| 27 | import org.onlab.util.KryoNamespace; |
| 28 | import org.onosproject.net.ConnectPoint; |
| 29 | import org.onosproject.net.DefaultLink; |
| 30 | import org.onosproject.net.DeviceId; |
| 31 | import org.onosproject.net.Link; |
| 32 | import org.onosproject.net.Path; |
| 33 | import org.onosproject.net.PortNumber; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 34 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 35 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 36 | import org.onosproject.net.flow.TrafficSelector; |
| 37 | import org.onosproject.net.flow.TrafficTreatment; |
| 38 | import org.onosproject.net.flow.criteria.Criteria; |
| 39 | import org.onosproject.net.flowobjective.DefaultFilteringObjective; |
| 40 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 41 | import org.onosproject.net.flowobjective.DefaultNextObjective; |
| 42 | import org.onosproject.net.flowobjective.DefaultObjectiveContext; |
| 43 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 44 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 45 | import org.onosproject.net.flowobjective.NextObjective; |
| 46 | import org.onosproject.net.flowobjective.Objective; |
| 47 | import org.onosproject.net.flowobjective.ObjectiveContext; |
| 48 | import org.onosproject.net.flowobjective.ObjectiveError; |
Andreas Pantelopoulos | a08c213 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 49 | import org.onosproject.net.topology.LinkWeigher; |
| 50 | import org.onosproject.segmentrouting.SRLinkWeigher; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 51 | import org.onosproject.segmentrouting.SegmentRoutingManager; |
| 52 | import org.onosproject.segmentrouting.SegmentRoutingService; |
| 53 | import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 54 | import org.onosproject.store.serializers.KryoNamespaces; |
| 55 | import org.onosproject.store.service.ConsistentMap; |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 56 | import org.onosproject.store.service.DistributedLock; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 57 | import org.onosproject.store.service.Serializer; |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 58 | import org.onosproject.store.service.StorageException; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 59 | import org.onosproject.store.service.Versioned; |
| 60 | import org.slf4j.Logger; |
| 61 | import org.slf4j.LoggerFactory; |
| 62 | |
| 63 | import java.util.ArrayList; |
Andreas Pantelopoulos | a08c213 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 64 | import java.util.HashSet; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 65 | import java.util.List; |
| 66 | import java.util.Set; |
| 67 | import java.util.concurrent.CompletableFuture; |
| 68 | import java.util.stream.Collectors; |
| 69 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 70 | import static org.onosproject.net.flowobjective.ForwardingObjective.Flag.VERSATILE; |
| 71 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.INITIATION; |
| 72 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Pipeline.TERMINATION; |
| 73 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Result.*; |
| 74 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.FWD; |
| 75 | import static org.onosproject.segmentrouting.pwaas.L2TunnelHandler.Direction.REV; |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 76 | import static org.onosproject.segmentrouting.pwaas.PwaasUtil.*; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 77 | |
| 78 | /** |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 79 | * Handler for pseudowire management. |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 80 | */ |
| 81 | public class DefaultL2TunnelHandler implements L2TunnelHandler { |
| 82 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 83 | private static final String LOCK_NAME = "l2-tunnel-handler-lock"; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 84 | private static final Logger log = LoggerFactory.getLogger(DefaultL2TunnelHandler.class); |
| 85 | |
| 86 | private final SegmentRoutingManager srManager; |
| 87 | /** |
| 88 | * To store the next objectives related to the initiation. |
| 89 | */ |
| 90 | private final ConsistentMap<String, NextObjective> l2InitiationNextObjStore; |
| 91 | /** |
| 92 | * To store the next objectives related to the termination. |
| 93 | */ |
| 94 | private final ConsistentMap<String, NextObjective> l2TerminationNextObjStore; |
| 95 | |
| 96 | /** |
| 97 | * To store policies. |
| 98 | */ |
| 99 | private final ConsistentMap<String, L2TunnelPolicy> l2PolicyStore; |
| 100 | |
| 101 | /** |
| 102 | * To store tunnels. |
| 103 | */ |
| 104 | private final ConsistentMap<String, L2Tunnel> l2TunnelStore; |
| 105 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 106 | /** |
| 107 | * To store pending tunnels that need to be installed. |
| 108 | */ |
| 109 | private final ConsistentMap<String, L2Tunnel> pendingL2TunnelStore; |
| 110 | |
| 111 | /** |
| 112 | * To store pending policies that need to be installed. |
| 113 | */ |
| 114 | private final ConsistentMap<String, L2TunnelPolicy> pendingL2PolicyStore; |
| 115 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 116 | private final KryoNamespace.Builder l2TunnelKryo; |
| 117 | |
| 118 | /** |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 119 | * Lock used when creating or removing pseudowires. |
| 120 | */ |
| 121 | private final DistributedLock pwLock; |
| 122 | |
| 123 | private static final long LOCK_TIMEOUT = 2000; |
| 124 | |
| 125 | /** |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 126 | * Create a l2 tunnel handler for the deploy and |
| 127 | * for the tear down of pseudo wires. |
| 128 | * |
| 129 | * @param segmentRoutingManager the segment routing manager |
| 130 | */ |
| 131 | public DefaultL2TunnelHandler(SegmentRoutingManager segmentRoutingManager) { |
| 132 | srManager = segmentRoutingManager; |
| 133 | l2TunnelKryo = new KryoNamespace.Builder() |
| 134 | .register(KryoNamespaces.API) |
| 135 | .register(L2Tunnel.class, |
| 136 | L2TunnelPolicy.class, |
| 137 | DefaultL2Tunnel.class, |
| 138 | DefaultL2TunnelPolicy.class, |
| 139 | L2Mode.class, |
| 140 | MplsLabel.class, |
| 141 | VlanId.class, |
| 142 | ConnectPoint.class); |
| 143 | |
| 144 | l2InitiationNextObjStore = srManager. |
| 145 | storageService. |
| 146 | <String, NextObjective>consistentMapBuilder(). |
| 147 | withName("onos-l2initiation-nextobj-store"). |
| 148 | withSerializer(Serializer.using(l2TunnelKryo.build())). |
| 149 | build(); |
| 150 | |
| 151 | l2TerminationNextObjStore = srManager.storageService. |
| 152 | <String, NextObjective>consistentMapBuilder() |
| 153 | .withName("onos-l2termination-nextobj-store") |
| 154 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 155 | .build(); |
| 156 | |
| 157 | l2PolicyStore = srManager.storageService |
| 158 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 159 | .withName("onos-l2-policy-store") |
| 160 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 161 | .build(); |
| 162 | |
| 163 | l2TunnelStore = srManager.storageService |
| 164 | .<String, L2Tunnel>consistentMapBuilder() |
| 165 | .withName("onos-l2-tunnel-store") |
| 166 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 167 | .build(); |
| 168 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 169 | pendingL2PolicyStore = srManager.storageService |
| 170 | .<String, L2TunnelPolicy>consistentMapBuilder() |
| 171 | .withName("onos-l2-pending-policy-store") |
| 172 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 173 | .build(); |
| 174 | |
| 175 | pendingL2TunnelStore = srManager.storageService |
| 176 | .<String, L2Tunnel>consistentMapBuilder() |
| 177 | .withName("onos-l2-pending-tunnel-store") |
| 178 | .withSerializer(Serializer.using(l2TunnelKryo.build())) |
| 179 | .build(); |
| 180 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 181 | pwLock = srManager.storageService.lockBuilder() |
| 182 | .withName(LOCK_NAME) |
| 183 | .build() |
| 184 | .asLock(LOCK_TIMEOUT); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | /** |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 188 | * Used by manager only in initialization. |
| 189 | */ |
| 190 | @Override |
| 191 | public void init() { |
Andreas Pantelopoulos | cdbb22c | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 192 | // Since we have no pseudowires in netcfg there |
| 193 | // is nothing to do in initialization. |
| 194 | // I leave it here because potentially we might need to |
| 195 | // use it in the future. |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 196 | } |
| 197 | |
Andreas Pantelopoulos | fc4bc2a | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 198 | @Override |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 199 | public Set<L2TunnelDescription> getL2Descriptions(boolean pending) { |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 200 | // get pending tunnels/policies OR installed tunnels/policies |
| 201 | List<L2Tunnel> tunnels = pending ? getL2PendingTunnels() : getL2Tunnels(); |
| 202 | List<L2TunnelPolicy> policies = pending ? getL2PendingPolicies() : getL2Policies(); |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 203 | return tunnels.stream() |
Andreas Pantelopoulos | fc4bc2a | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 204 | .map(l2Tunnel -> { |
| 205 | L2TunnelPolicy policy = null; |
| 206 | for (L2TunnelPolicy l2Policy : policies) { |
| 207 | if (l2Policy.tunnelId() == l2Tunnel.tunnelId()) { |
| 208 | policy = l2Policy; |
| 209 | break; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | return new DefaultL2TunnelDescription(l2Tunnel, policy); |
| 214 | }) |
| 215 | .collect(Collectors.toSet()); |
| 216 | } |
| 217 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 218 | @Override |
| 219 | public List<L2TunnelPolicy> getL2Policies() { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 220 | return new ArrayList<>(l2PolicyStore |
| 221 | .values() |
| 222 | .stream() |
| 223 | .map(Versioned::value) |
| 224 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 225 | } |
| 226 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 227 | @Override |
| 228 | public List<L2Tunnel> getL2Tunnels() { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 229 | return new ArrayList<>(l2TunnelStore |
| 230 | .values() |
| 231 | .stream() |
| 232 | .map(Versioned::value) |
| 233 | .collect(Collectors.toList())); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | @Override |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 237 | public List<L2TunnelPolicy> getL2PendingPolicies() { |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 238 | return new ArrayList<>(pendingL2PolicyStore |
| 239 | .values() |
| 240 | .stream() |
| 241 | .map(Versioned::value) |
| 242 | .collect(Collectors.toList())); |
| 243 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 244 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 245 | @Override |
| 246 | public List<L2Tunnel> getL2PendingTunnels() { |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 247 | return new ArrayList<>(pendingL2TunnelStore |
| 248 | .values() |
| 249 | .stream() |
| 250 | .map(Versioned::value) |
| 251 | .collect(Collectors.toList())); |
| 252 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 253 | |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 254 | @Override |
| 255 | public Result verifyGlobalValidity(L2TunnelDescription pwToAdd) { |
| 256 | |
| 257 | // get both added and pending pseudowires |
| 258 | List<L2TunnelDescription> newPseudowires = new ArrayList<>(); |
| 259 | newPseudowires.addAll(getL2Descriptions(false)); |
| 260 | newPseudowires.addAll(getL2Descriptions(true)); |
| 261 | // add the new one |
| 262 | newPseudowires.add(pwToAdd); |
| 263 | |
| 264 | return configurationValidity(newPseudowires); |
| 265 | } |
| 266 | |
Charles Chan | 0b1dd7e | 2018-08-19 19:21:46 -0700 | [diff] [blame] | 267 | @Override |
| 268 | public ImmutableMap<String, NextObjective> getInitNext() { |
| 269 | if (l2InitiationNextObjStore != null) { |
| 270 | return ImmutableMap.copyOf(l2InitiationNextObjStore.asJavaMap()); |
| 271 | } else { |
| 272 | return ImmutableMap.of(); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | @Override |
| 277 | public ImmutableMap<String, NextObjective> getTermNext() { |
| 278 | if (l2TerminationNextObjStore != null) { |
| 279 | return ImmutableMap.copyOf(l2TerminationNextObjStore.asJavaMap()); |
| 280 | } else { |
| 281 | return ImmutableMap.of(); |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | @Override |
| 286 | public void removeNextId(int nextId) { |
| 287 | l2InitiationNextObjStore.entrySet().forEach(e -> { |
| 288 | if (e.getValue().value().id() == nextId) { |
| 289 | l2InitiationNextObjStore.remove(e.getKey()); |
| 290 | } |
| 291 | }); |
| 292 | |
| 293 | l2TerminationNextObjStore.entrySet().forEach(e -> { |
| 294 | if (e.getValue().value().id() == nextId) { |
| 295 | l2TerminationNextObjStore.remove(e.getKey()); |
| 296 | } |
| 297 | }); |
| 298 | } |
| 299 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 300 | /** |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 301 | * Returns the new vlan id for an ingress point of a |
| 302 | * pseudowire. For double tagged, it is the outer, |
| 303 | * For single tagged it is the single tag, and for |
| 304 | * inner it is None. |
| 305 | * |
| 306 | * @param ingressOuter vlanid of ingress outer |
| 307 | * @param ingressInner vlanid of ingress inner |
| 308 | * @param egressOuter vlanid of egress outer |
| 309 | * @param egressInner vlanid of egress inner |
| 310 | * @return returns the vlan id which will be installed at vlan table 1. |
| 311 | */ |
| 312 | private VlanId determineEgressVlan(VlanId ingressOuter, VlanId ingressInner, |
| 313 | VlanId egressOuter, VlanId egressInner) { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 314 | // validity of vlan combinations was checked at verifyPseudowire |
| 315 | if (!(ingressOuter.equals(VlanId.NONE))) { |
| 316 | return egressOuter; |
| 317 | } else if (!(ingressInner.equals(VlanId.NONE))) { |
| 318 | return egressInner; |
| 319 | } else { |
| 320 | return VlanId.vlanId("None"); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /** |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 325 | * Returns the devices existing on a given path. |
Andreas Pantelopoulos | fc4bc2a | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 326 | * |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 327 | * @param path The path to traverse. |
| 328 | * @return The devices on the path with the order they |
| 329 | * are traversed. |
| 330 | */ |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 331 | private List<DeviceId> getDevicesOnPath(List<Link> path) { |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 332 | |
| 333 | // iterate over links and get all devices in the order |
| 334 | // we find them |
Yuta HIGUCHI | 8bbc413 | 2018-05-18 16:36:43 -0700 | [diff] [blame] | 335 | List<DeviceId> deviceList = new ArrayList<>(); |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 336 | for (Link link : path) { |
| 337 | if (!deviceList.contains(link.src().deviceId())) { |
| 338 | deviceList.add(link.src().deviceId()); |
| 339 | } |
| 340 | if (!deviceList.contains(link.dst().deviceId())) { |
| 341 | deviceList.add(link.dst().deviceId()); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | return deviceList; |
| 346 | } |
| 347 | |
| 348 | /** |
| 349 | * Returns true if path is valid according to the current logic. |
| 350 | * For example : leaf to spine pseudowires can be either leaf-spine or |
| 351 | * leaf-spine-spine. However, in the configuration we might specify spine device |
| 352 | * first which will result in spine-spine-leaf. If leafSpinePw == true we have one of these |
| 353 | * two cases and need to provision for them. |
| 354 | * |
| 355 | * If we have a leaf to leaf pseudowire then all the intermediate devices must |
| 356 | * be spines. However, in case of paired switches we can have two leafs interconnected |
| 357 | * with each other directly. |
| 358 | * |
| 359 | * @param path the chosen path |
| 360 | * @param leafSpinePw if it is a leaf to spine pseudowire |
Andreas Pantelopoulos | fc4bc2a | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 361 | * @return True if path size is valid, false otherwise. |
| 362 | */ |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 363 | private boolean isValidPath(List<Link> path, boolean leafSpinePw) { |
| 364 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 365 | log.debug("Checking path validity for pseudowire."); |
Andreas Pantelopoulos | bb30491 | 2018-03-18 23:17:55 -0700 | [diff] [blame] | 366 | List<DeviceId> devices = getDevicesOnPath(path); |
| 367 | if (devices.size() < 2) { |
| 368 | log.error("Path size for pseudowire should be greater than 1!"); |
| 369 | return false; |
| 370 | } |
| 371 | |
| 372 | try { |
| 373 | if (leafSpinePw) { |
| 374 | // can either be leaf-spine-spine or leaf-spine |
| 375 | // first device is leaf, all other must be spines |
| 376 | log.debug("Devices on path are {} for leaf to spine pseudowire", devices); |
| 377 | // if first device is a leaf then all other must be spines |
| 378 | if (srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 379 | devices.remove(0); |
| 380 | for (DeviceId devId : devices) { |
| 381 | log.debug("Device {} should be a spine!", devId); |
| 382 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 383 | return false; |
| 384 | } |
| 385 | } |
| 386 | } else { |
| 387 | // if first device is spine, last device must be a leaf |
| 388 | // all other devices must be spines |
| 389 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 390 | return false; |
| 391 | } |
| 392 | devices.remove(devices.size() - 1); |
| 393 | for (DeviceId devId : devices) { |
| 394 | log.debug("Device {} should be a spine!", devId); |
| 395 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 396 | return false; |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | } else { |
| 401 | // can either be leaf-leaf (paired leafs) / leaf-spine-leaf |
| 402 | // or leaf-spine-spine-leaf |
| 403 | log.debug("Devices on path are {} for leaf to leaf pseudowire", devices); |
| 404 | // check first device, needs to be a leaf |
| 405 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(0))) { |
| 406 | return false; |
| 407 | } |
| 408 | // check last device, needs to be a leaf |
| 409 | if (!srManager.deviceConfiguration().isEdgeDevice(devices.get(devices.size() - 1))) { |
| 410 | return false; |
| 411 | } |
| 412 | // remove these devices, rest must all be spines |
| 413 | devices.remove(0); |
| 414 | devices.remove(devices.size() - 1); |
| 415 | for (DeviceId devId : devices) { |
| 416 | log.debug("Device {} should be a spine!", devId); |
| 417 | if (srManager.deviceConfiguration().isEdgeDevice(devId)) { |
| 418 | return false; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | } |
| 423 | } catch (DeviceConfigNotFoundException e) { |
| 424 | log.error("Device not found in configuration : {}", e); |
| 425 | return false; |
| 426 | } |
| 427 | |
| 428 | return true; |
Andreas Pantelopoulos | fc4bc2a | 2018-03-12 16:30:20 -0700 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | /** |
Andreas Pantelopoulos | cdbb22c | 2018-02-23 14:18:00 -0800 | [diff] [blame] | 432 | * Adds a single pseudowire. |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 433 | * |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 434 | * @param pw The pseudowire to deploy |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 435 | * @return result of pseudowire deployment |
| 436 | */ |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 437 | public Result deployPseudowire(L2TunnelDescription pw) { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 438 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 439 | try { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 440 | // take the lock |
| 441 | pwLock.lock(); |
| 442 | Result result; |
| 443 | long l2TunnelId; |
| 444 | log.debug("Pseudowire with {} deployment started, check log for any errors in this process!", |
| 445 | pw.l2Tunnel().tunnelId()); |
| 446 | l2TunnelId = pw.l2Tunnel().tunnelId(); |
| 447 | // The tunnel id cannot be 0. |
| 448 | if (l2TunnelId == 0) { |
| 449 | log.warn("Tunnel id id must be > 0 in {}", l2TunnelId); |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 450 | return Result.WRONG_PARAMETERS |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 451 | .appendError("Tunnel id id must be > 0"); |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 452 | } |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 453 | |
| 454 | result = verifyGlobalValidity(pw); |
| 455 | if (result != SUCCESS) { |
| 456 | log.error("Global validity for pseudowire {} is wrong!", l2TunnelId); |
| 457 | return result; |
| 458 | } |
| 459 | |
| 460 | // leafSpinePw determines if this is a leaf-leaf |
| 461 | // or leaf-spine pseudowire |
| 462 | boolean leafSpinePw; |
| 463 | ConnectPoint cp1 = pw.l2TunnelPolicy().cP1(); |
| 464 | ConnectPoint cp2 = pw.l2TunnelPolicy().cP2(); |
| 465 | try { |
| 466 | // differentiate between leaf-leaf pseudowires and leaf-spine |
| 467 | if (!srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 468 | !srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 469 | log.error("Can not deploy pseudowire {} from spine to spine!", l2TunnelId); |
| 470 | return Result.WRONG_PARAMETERS |
| 471 | .appendError("Can not deploy pseudowire from spine to spine!"); |
| 472 | } else if (srManager.deviceConfiguration().isEdgeDevice(cp1.deviceId()) && |
| 473 | srManager.deviceConfiguration().isEdgeDevice(cp2.deviceId())) { |
| 474 | leafSpinePw = false; |
| 475 | } else { |
| 476 | leafSpinePw = true; |
| 477 | } |
| 478 | } catch (DeviceConfigNotFoundException e) { |
| 479 | log.error("Device for pseudowire {} connection points does not exist in the configuration", l2TunnelId); |
| 480 | return Result.INTERNAL_ERROR |
| 481 | .appendError("Device for pseudowire connection points does not exist in the configuration"); |
| 482 | } |
| 483 | |
| 484 | // reverse the policy in order for leaf switch to be at CP1 |
| 485 | // this will help us for re-using SRLinkWeigher for computing valid paths |
| 486 | L2TunnelPolicy reversedPolicy = reverseL2TunnelPolicy(pw.l2TunnelPolicy()); |
| 487 | if (reversedPolicy == null) { |
| 488 | log.error("Error in reversing policy, device configuration was not found for pseudowire {}.", |
| 489 | l2TunnelId); |
| 490 | return INTERNAL_ERROR |
| 491 | .appendError("Device configuration not found when reversing the policy."); |
| 492 | } |
| 493 | pw.setL2TunnelPolicy(reversedPolicy); |
| 494 | |
| 495 | // get path here, need to use the same for fwd and rev direction |
| 496 | List<Link> path = getPath(pw.l2TunnelPolicy().cP1(), |
| 497 | pw.l2TunnelPolicy().cP2()); |
柯志勇10068695 | 8f6281e | 2018-10-19 17:33:17 +0800 | [diff] [blame] | 498 | if (path == null || path.isEmpty()) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 499 | log.error("Deploying process : No path between the connection points for pseudowire {}", l2TunnelId); |
| 500 | return PATH_NOT_FOUND.appendError("No path between the connection points for pseudowire!"); |
| 501 | } |
| 502 | |
| 503 | Link fwdNextHop; |
| 504 | Link revNextHop; |
| 505 | if (!isValidPath(path, leafSpinePw)) { |
| 506 | log.error("Deploying process : Path for pseudowire {} is not valid", l2TunnelId); |
| 507 | return INTERNAL_ERROR.appendError("Internal error : path for pseudowire is not valid!"); |
| 508 | } |
| 509 | // oneHope flag is used to determine if we need to |
| 510 | // install transit mpls rules |
| 511 | boolean oneHop = true; |
| 512 | if (path.size() > 1) { |
| 513 | oneHop = false; |
| 514 | } |
| 515 | |
| 516 | fwdNextHop = path.get(0); |
| 517 | revNextHop = reverseLink(path.get(path.size() - 1)); |
| 518 | |
| 519 | pw.l2Tunnel().setPath(path); |
Saurav Das | 9bf4958 | 2018-08-13 15:34:26 -0700 | [diff] [blame] | 520 | pw.l2Tunnel().setTransportVlan(srManager.getPwTransportVlan()); |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 521 | |
| 522 | // next hops for next objectives |
| 523 | log.info("Deploying process : Establishing forward direction for pseudowire {}", l2TunnelId); |
| 524 | |
| 525 | VlanId egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP1OuterTag(), |
| 526 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 527 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 528 | pw.l2TunnelPolicy().cP2InnerTag()); |
| 529 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 530 | pw.l2TunnelPolicy().cP1(), |
| 531 | pw.l2TunnelPolicy().cP2(), |
| 532 | FWD, |
| 533 | fwdNextHop, |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 534 | oneHop, |
| 535 | egressVlan); |
| 536 | if (result != SUCCESS) { |
| 537 | log.error("Deploying process : Error in deploying pseudowire {} initiation for CP1", l2TunnelId); |
| 538 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire initiation for CP1"); |
| 539 | } |
| 540 | |
| 541 | result = deployPolicy(l2TunnelId, |
| 542 | pw.l2TunnelPolicy().cP1(), |
| 543 | pw.l2TunnelPolicy().cP1InnerTag(), |
| 544 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 545 | egressVlan, |
| 546 | result.getNextId()); |
| 547 | if (result != SUCCESS) { |
| 548 | log.error("Deploying process : Error in deploying pseudowire {} policy for CP1", l2TunnelId); |
| 549 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire policy for CP1"); |
| 550 | } |
| 551 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 552 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 553 | pw.l2TunnelPolicy().cP2(), |
| 554 | egressVlan, |
| 555 | FWD, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 556 | oneHop); |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 557 | |
| 558 | if (result != SUCCESS) { |
| 559 | log.error("Deploying process : Error in deploying pseudowire {} termination for CP1", l2TunnelId); |
| 560 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP1"); |
| 561 | } |
| 562 | |
| 563 | // We establish the reverse tunnel. |
| 564 | log.info("Deploying process : Establishing reverse direction for pseudowire {}", l2TunnelId); |
| 565 | egressVlan = determineEgressVlan(pw.l2TunnelPolicy().cP2OuterTag(), |
| 566 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 567 | pw.l2TunnelPolicy().cP1OuterTag(), |
| 568 | pw.l2TunnelPolicy().cP1InnerTag()); |
| 569 | |
| 570 | result = deployPseudoWireInit(pw.l2Tunnel(), |
| 571 | pw.l2TunnelPolicy().cP2(), |
| 572 | pw.l2TunnelPolicy().cP1(), |
| 573 | REV, |
| 574 | revNextHop, |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 575 | oneHop, |
| 576 | egressVlan); |
| 577 | if (result != SUCCESS) { |
| 578 | log.error("Deploying process : Error in deploying pseudowire {} initiation for CP2", l2TunnelId); |
| 579 | return Result.INTERNAL_ERROR |
| 580 | .appendError("Error in deploying pseudowire initiation for CP2"); |
| 581 | } |
| 582 | |
| 583 | result = deployPolicy(l2TunnelId, |
| 584 | pw.l2TunnelPolicy().cP2(), |
| 585 | pw.l2TunnelPolicy().cP2InnerTag(), |
| 586 | pw.l2TunnelPolicy().cP2OuterTag(), |
| 587 | egressVlan, |
| 588 | result.getNextId()); |
| 589 | if (result != SUCCESS) { |
| 590 | log.error("Deploying process : Error in deploying policy {} for CP2", l2TunnelId); |
| 591 | return Result.INTERNAL_ERROR |
| 592 | .appendError("Deploying process : Error in deploying policy for CP2"); |
| 593 | } |
| 594 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 595 | result = deployPseudoWireTerm(pw.l2Tunnel(), |
| 596 | pw.l2TunnelPolicy().cP1(), |
| 597 | egressVlan, |
| 598 | REV, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 599 | oneHop); |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 600 | |
| 601 | if (result != SUCCESS) { |
| 602 | log.error("Deploying process : Error in deploying pseudowire {} termination for CP2", l2TunnelId); |
| 603 | return Result.INTERNAL_ERROR.appendError("Error in deploying pseudowire termination for CP2"); |
| 604 | } |
| 605 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 606 | log.info("Deploying process : Updating relevant information for pseudowire {}", l2TunnelId); |
| 607 | |
| 608 | // Populate stores as the final step of the process |
| 609 | l2TunnelStore.put(Long.toString(l2TunnelId), pw.l2Tunnel()); |
| 610 | l2PolicyStore.put(Long.toString(l2TunnelId), pw.l2TunnelPolicy()); |
| 611 | |
| 612 | return Result.SUCCESS; |
| 613 | } catch (StorageException.Timeout e) { |
| 614 | log.error("Can not acquire distributed lock for pseudowire {}!", pw.l2Tunnel().tunnelId()); |
| 615 | return Result.INTERNAL_ERROR.appendError("Can not acquire distributed lock!"); |
| 616 | } finally { |
| 617 | // release the lock |
| 618 | pwLock.unlock(); |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 619 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 620 | } |
| 621 | |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 622 | @Override |
| 623 | public Result checkIfPwExists(long tunnelId, boolean pending) { |
| 624 | |
| 625 | List<L2TunnelDescription> pseudowires = getL2Descriptions(pending) |
| 626 | .stream() |
| 627 | .filter(pw -> pw.l2Tunnel().tunnelId() == tunnelId) |
| 628 | .collect(Collectors.toList()); |
| 629 | |
| 630 | if (pseudowires.size() == 0) { |
| 631 | String store = ((pending) ? "pending" : "installed"); |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 632 | log.debug("Pseudowire {} does not exist in {} store", tunnelId, store); |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 633 | return Result.WRONG_PARAMETERS. |
| 634 | appendError("Pseudowire " + tunnelId + " does not exist in " + store); |
| 635 | } else { |
| 636 | return SUCCESS; |
| 637 | } |
| 638 | } |
| 639 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 640 | /** |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 641 | * Tears down connection points of pseudowires. We can either tear down both connection points, |
| 642 | * or each one of them. |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 643 | * |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 644 | * @param l2TunnelId The tunnel id for this pseudowire. |
| 645 | * @param tearDownFirst Boolean, true if we want to tear down cp1 |
| 646 | * @param tearDownSecond Boolean, true if we want to tear down cp2 |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 647 | * @param pending Boolean, if true remove only pseudowire from pending stores since no flows/groups |
| 648 | * in the network, else remove flows/groups in the devices also. |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 649 | * @return Result of tearing down the pseudowire, SUCCESS if everything was ok |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 650 | * a descriptive error otherwise. |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 651 | */ |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 652 | private Result tearDownConnectionPoints(long l2TunnelId, boolean tearDownFirst, |
| 653 | boolean tearDownSecond, boolean pending) { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 654 | |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 655 | Result res; |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 656 | CompletableFuture<ObjectiveError> fwdInitNextFuture = new CompletableFuture<>(); |
| 657 | CompletableFuture<ObjectiveError> fwdTermNextFuture = new CompletableFuture<>(); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 658 | CompletableFuture<ObjectiveError> revInitNextFuture = new CompletableFuture<>(); |
| 659 | CompletableFuture<ObjectiveError> revTermNextFuture = new CompletableFuture<>(); |
| 660 | |
| 661 | if (l2TunnelId == 0) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 662 | log.error("Removal process : Tunnel id cannot be 0"); |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 663 | return Result.WRONG_PARAMETERS.appendError("Pseudowire id can not be 0."); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 664 | } |
| 665 | |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 666 | res = checkIfPwExists(l2TunnelId, pending); |
| 667 | if (res != Result.SUCCESS) { |
| 668 | return res; |
| 669 | } |
| 670 | |
| 671 | // remove and get the tunnel and the policy from the appropriate store |
| 672 | // if null, return error. |
| 673 | Versioned<L2Tunnel> l2TunnelVersioned = pending ? |
| 674 | pendingL2TunnelStore.remove(Long.toString(l2TunnelId)) : |
| 675 | l2TunnelStore.remove(Long.toString(l2TunnelId)); |
| 676 | Versioned<L2TunnelPolicy> l2TunnelPolicyVersioned = pending ? |
| 677 | pendingL2PolicyStore.remove(Long.toString(l2TunnelId)) : |
| 678 | l2PolicyStore.remove(Long.toString(l2TunnelId)); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 679 | if ((l2TunnelVersioned == null) || (l2TunnelPolicyVersioned == null)) { |
| 680 | log.warn("Removal process : Policy and/or tunnel missing for tunnel id {}", l2TunnelId); |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 681 | return Result.INTERNAL_ERROR |
| 682 | .appendError("Policy and/or tunnel missing for pseudowire!"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | L2TunnelDescription pwToRemove = new DefaultL2TunnelDescription(l2TunnelVersioned.value(), |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 686 | l2TunnelPolicyVersioned.value()); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 687 | |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 688 | if (pending) { |
| 689 | // no need to remove flows / groups for a pseudowire |
| 690 | // in pending state |
| 691 | return Result.SUCCESS; |
| 692 | } |
| 693 | |
| 694 | // remove flows/groups involving with this pseudowire |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 695 | if (tearDownFirst) { |
| 696 | log.info("Removal process : Tearing down forward direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 697 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 698 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 699 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 700 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 701 | pwToRemove.l2TunnelPolicy().cP2InnerTag()); |
| 702 | deletePolicy(l2TunnelId, |
| 703 | pwToRemove.l2TunnelPolicy().cP1(), |
| 704 | pwToRemove.l2TunnelPolicy().cP1InnerTag(), |
| 705 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 706 | egressVlan, |
| 707 | fwdInitNextFuture, |
| 708 | FWD); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 709 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 710 | fwdInitNextFuture.thenAcceptAsync(status -> { |
| 711 | if (status == null) { |
| 712 | // Finally we will tear down the pseudo wire. |
| 713 | tearDownPseudoWireInit(l2TunnelId, |
| 714 | pwToRemove.l2TunnelPolicy().cP1(), |
| 715 | fwdTermNextFuture, |
| 716 | FWD); |
| 717 | } |
| 718 | }); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 719 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 720 | fwdTermNextFuture.thenAcceptAsync(status -> { |
| 721 | if (status == null) { |
| 722 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 723 | pwToRemove.l2TunnelPolicy().cP2(), |
| 724 | null, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 725 | FWD); |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 726 | } |
| 727 | }); |
| 728 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 729 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 730 | if (tearDownSecond) { |
| 731 | log.info("Removal process : Tearing down reverse direction of pseudowire {}", l2TunnelId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 732 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 733 | VlanId egressVlan = determineEgressVlan(pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 734 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 735 | pwToRemove.l2TunnelPolicy().cP1OuterTag(), |
| 736 | pwToRemove.l2TunnelPolicy().cP1InnerTag()); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 737 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 738 | // We do the same operations on the reverse side. |
| 739 | deletePolicy(l2TunnelId, |
| 740 | pwToRemove.l2TunnelPolicy().cP2(), |
| 741 | pwToRemove.l2TunnelPolicy().cP2InnerTag(), |
| 742 | pwToRemove.l2TunnelPolicy().cP2OuterTag(), |
| 743 | egressVlan, |
| 744 | revInitNextFuture, |
| 745 | REV); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 746 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 747 | revInitNextFuture.thenAcceptAsync(status -> { |
| 748 | if (status == null) { |
| 749 | tearDownPseudoWireInit(l2TunnelId, |
| 750 | pwToRemove.l2TunnelPolicy().cP2(), |
| 751 | revTermNextFuture, |
| 752 | REV); |
| 753 | } |
| 754 | }); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 755 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 756 | revTermNextFuture.thenAcceptAsync(status -> { |
| 757 | if (status == null) { |
| 758 | tearDownPseudoWireTerm(pwToRemove.l2Tunnel(), |
| 759 | pwToRemove.l2TunnelPolicy().cP1(), |
| 760 | null, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 761 | REV); |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 762 | } |
| 763 | }); |
| 764 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 765 | |
| 766 | return Result.SUCCESS; |
| 767 | } |
| 768 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 769 | /** |
| 770 | * Helper function for removing a single pseudowire. |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 771 | * |
| 772 | * Tries to remove pseudowire from any store it might reside (pending or installed). |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 773 | * |
| 774 | * @param l2TunnelId the id of the pseudowire to tear down |
| 775 | * @return Returns SUCCESS if no error is obeserved or an appropriate |
| 776 | * error on a failure |
| 777 | */ |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 778 | public Result tearDownPseudowire(long l2TunnelId) { |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 779 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 780 | try { |
| 781 | // take the lock |
| 782 | pwLock.lock(); |
| 783 | |
| 784 | if (checkIfPwExists(l2TunnelId, true) == Result.SUCCESS) { |
| 785 | return tearDownConnectionPoints(l2TunnelId, true, true, true); |
| 786 | } else if (checkIfPwExists(l2TunnelId, false) == Result.SUCCESS) { |
| 787 | return tearDownConnectionPoints(l2TunnelId, true, true, false); |
| 788 | } else { |
| 789 | return Result.WRONG_PARAMETERS.appendError("Pseudowire with " |
| 790 | + l2TunnelId |
| 791 | + " did not reside in any store!"); |
| 792 | } |
| 793 | } catch (StorageException.Timeout e) { |
| 794 | log.error("Can not acquire distributed lock for pseudowire {}!", l2TunnelId); |
| 795 | return Result.INTERNAL_ERROR.appendError("Can not acquire distributed lock!"); |
| 796 | } finally { |
| 797 | // release the lock |
| 798 | pwLock.unlock(); |
Andreas Pantelopoulos | 87a0610 | 2018-03-21 16:44:18 -0700 | [diff] [blame] | 799 | } |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 800 | } |
| 801 | |
Yuta HIGUCHI | 8bbc413 | 2018-05-18 16:36:43 -0700 | [diff] [blame] | 802 | @Override |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 803 | @Deprecated |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 804 | public void tearDown(Set<L2TunnelDescription> pwToRemove) { |
| 805 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 806 | for (L2TunnelDescription currentL2Tunnel : pwToRemove) { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 807 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 808 | long tunnelId = currentL2Tunnel.l2TunnelPolicy().tunnelId(); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 809 | log.info("Removing pseudowire {}", tunnelId); |
| 810 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 811 | Result result = tearDownPseudowire(tunnelId); |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 812 | if (result != Result.SUCCESS) { |
| 813 | log.error("Could not remove pseudowire {}!", tunnelId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 814 | } |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | /** |
| 819 | * Handles the policy establishment which consists in |
| 820 | * create the filtering and forwarding objectives related |
| 821 | * to the initiation and termination. |
| 822 | * |
| 823 | * @param tunnelId the tunnel id |
| 824 | * @param ingress the ingress point |
| 825 | * @param ingressInner the ingress inner tag |
| 826 | * @param ingressOuter the ingress outer tag |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 827 | * @param egressVlan Vlan-id to set, depends on ingress vlan |
| 828 | * combinations. For example, if pw is double tagged |
| 829 | * then this is the value of the outer vlan, if single |
| 830 | * tagged then it is the new value of the single tag. |
| 831 | * Should be None for untagged traffic. |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 832 | * @param nextId the next objective id |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 833 | * @return the result of the operation |
| 834 | */ |
| 835 | private Result deployPolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, |
| 836 | VlanId ingressOuter, VlanId egressVlan, int nextId) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 837 | log.debug("Starting deploying policy for pseudowire {}.", tunnelId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 838 | |
| 839 | List<Objective> objectives = Lists.newArrayList(); |
| 840 | // We create the forwarding objective for supporting |
| 841 | // the l2 tunnel. |
| 842 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 843 | // We create and add objective context. |
| 844 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 845 | log.debug("FwdObj for tunnel {} populated", tunnelId), |
| 846 | (objective, error) -> |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 847 | log.warn("Failed to populate fwdObj " + |
| 848 | "for tunnel {} : {}", |
| 849 | tunnelId, error)); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 850 | objectives.add(fwdBuilder.add(context)); |
| 851 | |
| 852 | // We create the filtering objective to define the |
| 853 | // permit traffic in the switch |
| 854 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 855 | |
| 856 | // We add the metadata. |
| 857 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 858 | .builder() |
| 859 | .setTunnelId(tunnelId) |
| 860 | .setVlanId(egressVlan); |
| 861 | filtBuilder.withMeta(treatment.build()); |
| 862 | |
| 863 | // We create and add objective context. |
| 864 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for tunnel {} populated", tunnelId), |
| 865 | (objective, error) -> log.warn("Failed to populate filterObj for " + |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 866 | "tunnel {} : {}", |
| 867 | tunnelId, error)); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 868 | objectives.add(filtBuilder.add(context)); |
| 869 | |
| 870 | for (Objective objective : objectives) { |
| 871 | if (objective instanceof ForwardingObjective) { |
| 872 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 873 | log.debug("Creating new FwdObj for initiation NextObj with id={} for tunnel {}", nextId, tunnelId); |
| 874 | } else { |
| 875 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 876 | log.debug("Creating new FiltObj for tunnel {}", tunnelId); |
| 877 | } |
| 878 | } |
| 879 | return SUCCESS; |
| 880 | } |
| 881 | |
| 882 | /** |
| 883 | * Handles the tunnel establishment which consists in |
| 884 | * create the next objectives related to the initiation. |
| 885 | * |
| 886 | * @param l2Tunnel the tunnel to deploy |
| 887 | * @param ingress the ingress connect point |
| 888 | * @param egress the egress connect point |
| 889 | * @param direction the direction of the pw |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 890 | * @param nextHop next hop of the initiation point |
| 891 | * @param oneHop if this pseudowire has only one link |
| 892 | * @param termVlanId the termination vlan id |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 893 | * @return the result of the operation |
| 894 | */ |
| 895 | private Result deployPseudoWireInit(L2Tunnel l2Tunnel, ConnectPoint ingress, |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 896 | ConnectPoint egress, Direction direction, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 897 | Link nextHop, boolean oneHop, VlanId termVlanId) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 898 | log.debug("Started deploying init next objectives for pseudowire {} for tunnel {} -> {}.", |
| 899 | l2Tunnel.tunnelId(), ingress, egress); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 900 | if (nextHop == null) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 901 | log.warn("No path between ingress and egress connection points for tunnel {}", l2Tunnel.tunnelId()); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 902 | return WRONG_PARAMETERS; |
| 903 | } |
| 904 | |
| 905 | // We create the next objective without the metadata |
| 906 | // context and id. We check if it already exists in the |
| 907 | // store. If not we store as it is in the store. |
| 908 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(INITIATION, |
| 909 | nextHop.src(), |
| 910 | nextHop.dst(), |
| 911 | l2Tunnel, |
| 912 | egress.deviceId(), |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 913 | oneHop, |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 914 | termVlanId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 915 | |
| 916 | if (nextObjectiveBuilder == null) { |
| 917 | return INTERNAL_ERROR; |
| 918 | } |
| 919 | // We set the metadata. We will use this metadata |
| 920 | // to inform the driver we are doing a l2 tunnel. |
| 921 | TrafficSelector metadata = DefaultTrafficSelector |
| 922 | .builder() |
| 923 | .matchTunnelId(l2Tunnel.tunnelId()) |
| 924 | .build(); |
| 925 | nextObjectiveBuilder.withMeta(metadata); |
| 926 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 927 | if (nextId < 0) { |
| 928 | log.warn("Not able to allocate a next id for initiation"); |
| 929 | return INTERNAL_ERROR; |
| 930 | } |
| 931 | nextObjectiveBuilder.withId(nextId); |
| 932 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 933 | l2InitiationNextObjStore.put(key, nextObjectiveBuilder.add()); |
Charles Chan | facfbef | 2018-08-23 14:30:33 -0700 | [diff] [blame] | 934 | ObjectiveContext context = new DefaultObjectiveContext( |
| 935 | (objective) -> log.debug("Initiation l2 tunnel rule for {} populated", l2Tunnel.tunnelId()), |
| 936 | (objective, error) -> { |
| 937 | log.warn("Failed to populate Initiation l2 tunnel rule for {}: {}", l2Tunnel.tunnelId(), error); |
| 938 | srManager.invalidateNextObj(objective.id()); |
| 939 | }); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 940 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 941 | srManager.flowObjectiveService.next(ingress.deviceId(), nextObjective); |
| 942 | log.debug("Initiation next objective for {} not found. Creating new NextObj with id={}", |
| 943 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 944 | Result result = SUCCESS; |
Andreas Pantelopoulos | 988580a | 2018-04-04 11:16:56 -0700 | [diff] [blame] | 945 | result.setNextId(nextObjective.id()); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 946 | return result; |
| 947 | } |
| 948 | |
| 949 | /** |
| 950 | * Handles the tunnel termination, which consists in the creation |
| 951 | * of a forwarding objective and a next objective. |
| 952 | * |
| 953 | * @param l2Tunnel the tunnel to terminate |
| 954 | * @param egress the egress point |
| 955 | * @param egressVlan the expected vlan at egress |
| 956 | * @param direction the direction |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 957 | * @return the result of the operation |
| 958 | */ |
| 959 | private Result deployPseudoWireTerm(L2Tunnel l2Tunnel, ConnectPoint egress, |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 960 | VlanId egressVlan, Direction direction, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 961 | boolean oneHop) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 962 | log.debug("Started deploying termination objectives for pseudowire {} , direction {}.", |
| 963 | l2Tunnel.tunnelId(), direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 964 | |
| 965 | // We create the group relative to the termination. |
| 966 | NextObjective.Builder nextObjectiveBuilder = createNextObjective(TERMINATION, egress, null, |
| 967 | l2Tunnel, egress.deviceId(), |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 968 | oneHop, |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 969 | egressVlan); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 970 | if (nextObjectiveBuilder == null) { |
| 971 | return INTERNAL_ERROR; |
| 972 | } |
| 973 | TrafficSelector metadata = DefaultTrafficSelector |
| 974 | .builder() |
| 975 | .matchVlanId(egressVlan) |
| 976 | .build(); |
| 977 | nextObjectiveBuilder.withMeta(metadata); |
| 978 | int nextId = srManager.flowObjectiveService.allocateNextId(); |
| 979 | if (nextId < 0) { |
| 980 | log.warn("Not able to allocate a next id for initiation"); |
| 981 | return INTERNAL_ERROR; |
| 982 | } |
| 983 | nextObjectiveBuilder.withId(nextId); |
| 984 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 985 | l2TerminationNextObjStore.put(key, nextObjectiveBuilder.add()); |
Charles Chan | facfbef | 2018-08-23 14:30:33 -0700 | [diff] [blame] | 986 | ObjectiveContext context = new DefaultObjectiveContext( |
| 987 | (objective) -> log.debug("Termination l2 tunnel rule for {} populated", l2Tunnel.tunnelId()), |
| 988 | (objective, error) -> { |
| 989 | log.warn("Failed to populate termination l2 tunnel rule for {}: {}", l2Tunnel.tunnelId(), error); |
| 990 | srManager.invalidateNextObj(objective.id()); |
| 991 | }); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 992 | NextObjective nextObjective = nextObjectiveBuilder.add(context); |
| 993 | srManager.flowObjectiveService.next(egress.deviceId(), nextObjective); |
| 994 | log.debug("Termination next objective for {} not found. Creating new NextObj with id={}", |
| 995 | l2Tunnel.tunnelId(), nextObjective.id()); |
| 996 | |
| 997 | // We create the flow relative to the termination. |
| 998 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), l2Tunnel.tunnelId(), |
| 999 | egress.port(), nextObjective.id()); |
| 1000 | context = new DefaultObjectiveContext((objective) -> log.debug("FwdObj for tunnel termination {} populated", |
| 1001 | l2Tunnel.tunnelId()), |
| 1002 | (objective, error) -> log.warn("Failed to populate fwdrObj" + |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1003 | " for tunnel termination {} : {}", |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1004 | l2Tunnel.tunnelId(), error)); |
| 1005 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.add(context)); |
| 1006 | log.debug("Creating new FwdObj for termination NextObj with id={} for tunnel {}", |
| 1007 | nextId, l2Tunnel.tunnelId()); |
| 1008 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1009 | return SUCCESS; |
| 1010 | } |
| 1011 | |
| 1012 | |
| 1013 | /** |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1014 | * Creates the filtering objective according to a given policy. |
| 1015 | * |
| 1016 | * @param inPort the in port |
| 1017 | * @param innerTag the inner vlan tag |
| 1018 | * @param outerTag the outer vlan tag |
| 1019 | * @return the filtering objective |
| 1020 | */ |
| 1021 | private FilteringObjective.Builder createFiltObjective(PortNumber inPort, VlanId innerTag, VlanId outerTag) { |
| 1022 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1023 | log.debug("Creating connection point filtering objective for vlans {} / {}", outerTag, innerTag); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1024 | return DefaultFilteringObjective |
| 1025 | .builder() |
| 1026 | .withKey(Criteria.matchInPort(inPort)) |
| 1027 | .addCondition(Criteria.matchInnerVlanId(innerTag)) |
| 1028 | .addCondition(Criteria.matchVlanId(outerTag)) |
| 1029 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1030 | .permit() |
| 1031 | .fromApp(srManager.appId()); |
| 1032 | } |
| 1033 | |
| 1034 | /** |
| 1035 | * Creates the forwarding objective for the termination. |
| 1036 | * |
| 1037 | * @param pwLabel the pseudo wire label |
| 1038 | * @param tunnelId the tunnel id |
| 1039 | * @param egressPort the egress port |
| 1040 | * @param nextId the next step |
| 1041 | * @return the forwarding objective to support the termination |
| 1042 | */ |
| 1043 | private ForwardingObjective.Builder createTermFwdObjective(MplsLabel pwLabel, long tunnelId, |
| 1044 | PortNumber egressPort, int nextId) { |
| 1045 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1046 | log.debug("Creating forwarding objective for termination for tunnel {} : pwLabel {}, egressPort {}, nextId {}", |
| 1047 | tunnelId, pwLabel, egressPort, nextId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1048 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1049 | TrafficTreatment.Builder trafficTreatment = DefaultTrafficTreatment.builder(); |
| 1050 | // The flow has to match on the pw label and bos |
| 1051 | trafficSelector.matchEthType(Ethernet.MPLS_UNICAST); |
| 1052 | trafficSelector.matchMplsLabel(pwLabel); |
| 1053 | trafficSelector.matchMplsBos(true); |
| 1054 | // The flow has to decrement ttl, restore ttl in |
| 1055 | // pop mpls, set tunnel id and port. |
| 1056 | trafficTreatment.decMplsTtl(); |
| 1057 | trafficTreatment.copyTtlIn(); |
| 1058 | trafficTreatment.popMpls(); |
| 1059 | trafficTreatment.setTunnelId(tunnelId); |
| 1060 | trafficTreatment.setOutput(egressPort); |
| 1061 | |
| 1062 | return DefaultForwardingObjective |
| 1063 | .builder() |
| 1064 | .fromApp(srManager.appId()) |
| 1065 | .makePermanent() |
| 1066 | .nextStep(nextId) |
| 1067 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1068 | .withSelector(trafficSelector.build()) |
| 1069 | .withTreatment(trafficTreatment.build()) |
| 1070 | .withFlag(VERSATILE); |
| 1071 | } |
| 1072 | |
| 1073 | /** |
| 1074 | * Creates the forwarding objective for the initiation. |
| 1075 | * |
| 1076 | * @param tunnelId the tunnel id |
| 1077 | * @param inPort the input port |
| 1078 | * @param nextId the next step |
| 1079 | * @return the forwarding objective to support the initiation. |
| 1080 | */ |
| 1081 | private ForwardingObjective.Builder createInitFwdObjective(long tunnelId, PortNumber inPort, int nextId) { |
| 1082 | |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1083 | log.debug("Creating forwarding objective for tunnel {} : Port {} , nextId {}", tunnelId, inPort, nextId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1084 | TrafficSelector.Builder trafficSelector = DefaultTrafficSelector.builder(); |
| 1085 | |
| 1086 | // The flow has to match on the mpls logical |
| 1087 | // port and the tunnel id. |
| 1088 | trafficSelector.matchTunnelId(tunnelId); |
| 1089 | trafficSelector.matchInPort(inPort); |
| 1090 | |
| 1091 | return DefaultForwardingObjective |
| 1092 | .builder() |
| 1093 | .fromApp(srManager.appId()) |
| 1094 | .makePermanent() |
| 1095 | .nextStep(nextId) |
| 1096 | .withPriority(SegmentRoutingService.DEFAULT_PRIORITY) |
| 1097 | .withSelector(trafficSelector.build()) |
| 1098 | .withFlag(VERSATILE); |
| 1099 | |
| 1100 | } |
| 1101 | |
| 1102 | /** |
| 1103 | * Creates the next objective according to a given |
| 1104 | * pipeline. We don't set the next id and we don't |
| 1105 | * create the final meta to check if we are re-using |
| 1106 | * the same next objective for different tunnels. |
| 1107 | * |
| 1108 | * @param pipeline the pipeline to support |
| 1109 | * @param srcCp the source port |
| 1110 | * @param dstCp the destination port |
| 1111 | * @param l2Tunnel the tunnel to support |
| 1112 | * @param egressId the egress device id |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1113 | * @param oneHop if the pw only has one hop, push only pw label |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1114 | * @param termVlanId the outer vlan id of the packet exiting a termination point |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1115 | * @return the next objective to support the pipeline |
| 1116 | */ |
| 1117 | private NextObjective.Builder createNextObjective(Pipeline pipeline, ConnectPoint srcCp, |
| 1118 | ConnectPoint dstCp, L2Tunnel l2Tunnel, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 1119 | DeviceId egressId, boolean oneHop, |
| 1120 | VlanId termVlanId) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1121 | log.debug("Creating {} next objective for pseudowire {}.", |
| 1122 | pipeline == TERMINATION ? "termination" : "inititation"); |
| 1123 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1124 | NextObjective.Builder nextObjBuilder; |
| 1125 | TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); |
| 1126 | if (pipeline == INITIATION) { |
| 1127 | nextObjBuilder = DefaultNextObjective |
| 1128 | .builder() |
| 1129 | .withType(NextObjective.Type.SIMPLE) |
| 1130 | .fromApp(srManager.appId()); |
| 1131 | // The pw label is the bottom of stack. It has to |
| 1132 | // be different -1. |
| 1133 | if (l2Tunnel.pwLabel().toInt() == MplsLabel.MAX_MPLS) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1134 | log.error("Pw label not configured"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1135 | return null; |
| 1136 | } |
| 1137 | treatmentBuilder.pushMpls(); |
| 1138 | treatmentBuilder.setMpls(l2Tunnel.pwLabel()); |
| 1139 | treatmentBuilder.setMplsBos(true); |
| 1140 | treatmentBuilder.copyTtlOut(); |
| 1141 | |
| 1142 | // If the inter-co label is present we have to set the label. |
| 1143 | if (l2Tunnel.interCoLabel().toInt() != MplsLabel.MAX_MPLS) { |
| 1144 | treatmentBuilder.pushMpls(); |
| 1145 | treatmentBuilder.setMpls(l2Tunnel.interCoLabel()); |
| 1146 | treatmentBuilder.setMplsBos(false); |
| 1147 | treatmentBuilder.copyTtlOut(); |
| 1148 | } |
| 1149 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1150 | // if not oneHop install transit mpls labels also |
| 1151 | if (!oneHop) { |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1152 | // We retrieve the sr label from the config |
| 1153 | // specific for pseudowire traffic |
| 1154 | // using the egress leaf device id. |
| 1155 | MplsLabel srLabel; |
| 1156 | try { |
| 1157 | srLabel = MplsLabel.mplsLabel(srManager.deviceConfiguration().getPWRoutingLabel(egressId)); |
| 1158 | |
| 1159 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1160 | log.error("Sr label for pw traffic not configured"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1161 | return null; |
| 1162 | } |
| 1163 | |
| 1164 | treatmentBuilder.pushMpls(); |
| 1165 | treatmentBuilder.setMpls(srLabel); |
| 1166 | treatmentBuilder.setMplsBos(false); |
| 1167 | treatmentBuilder.copyTtlOut(); |
| 1168 | } |
| 1169 | |
| 1170 | // We have to rewrite the src and dst mac address. |
| 1171 | MacAddress ingressMac; |
| 1172 | try { |
| 1173 | ingressMac = srManager.deviceConfiguration().getDeviceMac(srcCp.deviceId()); |
| 1174 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1175 | log.error("Was not able to find the ingress mac"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1176 | return null; |
| 1177 | } |
| 1178 | treatmentBuilder.setEthSrc(ingressMac); |
| 1179 | MacAddress neighborMac; |
| 1180 | try { |
| 1181 | neighborMac = srManager.deviceConfiguration().getDeviceMac(dstCp.deviceId()); |
| 1182 | } catch (DeviceConfigNotFoundException e) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1183 | log.error("Was not able to find the neighbor mac"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1184 | return null; |
| 1185 | } |
| 1186 | treatmentBuilder.setEthDst(neighborMac); |
| 1187 | |
Andreas Pantelopoulos | d988c1a | 2018-03-15 16:56:09 -0700 | [diff] [blame] | 1188 | // set the appropriate transport vlan from tunnel information |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1189 | treatmentBuilder.setVlanId(l2Tunnel.transportVlan()); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1190 | } else { |
| 1191 | // We create the next objective which |
| 1192 | // will be a simple l2 group. |
| 1193 | nextObjBuilder = DefaultNextObjective |
| 1194 | .builder() |
| 1195 | .withType(NextObjective.Type.SIMPLE) |
| 1196 | .fromApp(srManager.appId()); |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1197 | |
| 1198 | // for termination point we use the outer vlan of the |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 1199 | // encapsulated packet for the vlan |
Andreas Pantelopoulos | e1b4707 | 2018-02-22 17:54:45 -0800 | [diff] [blame] | 1200 | treatmentBuilder.setVlanId(termVlanId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1201 | } |
| 1202 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1203 | treatmentBuilder.setOutput(srcCp.port()); |
| 1204 | nextObjBuilder.addTreatment(treatmentBuilder.build()); |
| 1205 | return nextObjBuilder; |
| 1206 | } |
| 1207 | |
| 1208 | /** |
Andreas Pantelopoulos | a08c213 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1209 | * Reverse an l2 tunnel policy in order to have as CP1 the leaf switch, |
| 1210 | * in case one of the switches is a spine. |
| 1211 | * |
| 1212 | * This makes possible the usage of SRLinkWeigher for computing valid paths, |
| 1213 | * which cuts leaf-spine links from the path computation with a src different |
| 1214 | * than the source leaf. |
| 1215 | * |
| 1216 | * @param policy The policy to reverse, if needed |
| 1217 | * @return a l2TunnelPolicy containing the leaf at CP1, suitable for usage with |
| 1218 | * current SRLinkWeigher |
| 1219 | */ |
| 1220 | private L2TunnelPolicy reverseL2TunnelPolicy(L2TunnelPolicy policy) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1221 | |
| 1222 | log.debug("Reversing policy for pseudowire."); |
Andreas Pantelopoulos | a08c213 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1223 | try { |
| 1224 | // if cp1 is a leaf, just return |
| 1225 | if (srManager.deviceConfiguration().isEdgeDevice(policy.cP1().deviceId())) { |
| 1226 | return policy; |
| 1227 | } else { |
| 1228 | // return a policy with reversed cp1 and cp2, and also with reversed tags |
| 1229 | return new DefaultL2TunnelPolicy(policy.tunnelId(), |
| 1230 | policy.cP2(), policy.cP2InnerTag(), policy.cP2OuterTag(), |
| 1231 | policy.cP1(), policy.cP1InnerTag(), policy.cP1OuterTag()); |
| 1232 | |
| 1233 | } |
| 1234 | } catch (DeviceConfigNotFoundException e) { |
| 1235 | // should never come here, since it has been checked before |
| 1236 | log.error("Configuration for device {}, does not exist!"); |
| 1237 | return null; |
| 1238 | } |
| 1239 | } |
| 1240 | |
| 1241 | /** |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1242 | * Reverses a link. |
| 1243 | * |
| 1244 | * @param link link to be reversed |
| 1245 | * @return the reversed link |
| 1246 | */ |
| 1247 | private Link reverseLink(Link link) { |
| 1248 | |
| 1249 | DefaultLink.Builder linkBuilder = DefaultLink.builder(); |
| 1250 | |
| 1251 | linkBuilder.src(link.dst()); |
| 1252 | linkBuilder.dst(link.src()); |
| 1253 | linkBuilder.type(link.type()); |
| 1254 | linkBuilder.providerId(link.providerId()); |
| 1255 | |
| 1256 | return linkBuilder.build(); |
| 1257 | } |
| 1258 | |
| 1259 | /** |
| 1260 | * Returns the path betwwen two connect points. |
| 1261 | * |
| 1262 | * @param srcCp source connect point |
| 1263 | * @param dstCp destination connect point |
| 1264 | * @return the path |
| 1265 | */ |
| 1266 | private List<Link> getPath(ConnectPoint srcCp, ConnectPoint dstCp) { |
Andreas Pantelopoulos | a08c213 | 2018-04-05 10:49:37 -0700 | [diff] [blame] | 1267 | |
| 1268 | // use SRLinkWeigher to avoid pair links, and also |
| 1269 | // avoid going from the spine to the leaf and to the |
| 1270 | // spine again, we need to have the leaf as CP1 here. |
| 1271 | LinkWeigher srLw = new SRLinkWeigher(srManager, srcCp.deviceId(), new HashSet<Link>()); |
| 1272 | |
| 1273 | Set<Path> paths = srManager.topologyService. |
| 1274 | getPaths(srManager.topologyService.currentTopology(), |
| 1275 | srcCp.deviceId(), dstCp.deviceId(), srLw); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1276 | |
| 1277 | log.debug("Paths obtained from topology service {}", paths); |
| 1278 | |
| 1279 | // We randomly pick a path. |
| 1280 | if (paths.isEmpty()) { |
| 1281 | return null; |
| 1282 | } |
| 1283 | int size = paths.size(); |
| 1284 | int index = RandomUtils.nextInt(0, size); |
| 1285 | |
| 1286 | List<Link> result = Iterables.get(paths, index).links(); |
| 1287 | log.debug("Randomly picked a path {}", result); |
| 1288 | |
| 1289 | return result; |
| 1290 | } |
| 1291 | |
| 1292 | /** |
| 1293 | * Deletes a given policy using the parameter supplied. |
| 1294 | * |
| 1295 | * @param tunnelId the tunnel id |
| 1296 | * @param ingress the ingress point |
| 1297 | * @param ingressInner the ingress inner vlan id |
| 1298 | * @param ingressOuter the ingress outer vlan id |
| 1299 | * @param future to perform the async operation |
| 1300 | * @param direction the direction: forward or reverse |
| 1301 | */ |
| 1302 | private void deletePolicy(long tunnelId, ConnectPoint ingress, VlanId ingressInner, VlanId ingressOuter, |
| 1303 | VlanId egressVlan, CompletableFuture<ObjectiveError> future, Direction direction) { |
| 1304 | |
| 1305 | String key = generateKey(tunnelId, direction); |
| 1306 | if (!l2InitiationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1307 | log.error("Abort delete of policy for tunnel {}: next does not exist in the store", tunnelId); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1308 | if (future != null) { |
| 1309 | future.complete(null); |
| 1310 | } |
| 1311 | return; |
| 1312 | } |
| 1313 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
| 1314 | int nextId = nextObjective.id(); |
| 1315 | List<Objective> objectives = Lists.newArrayList(); |
| 1316 | // We create the forwarding objective. |
| 1317 | ForwardingObjective.Builder fwdBuilder = createInitFwdObjective(tunnelId, ingress.port(), nextId); |
| 1318 | ObjectiveContext context = new ObjectiveContext() { |
| 1319 | @Override |
| 1320 | public void onSuccess(Objective objective) { |
| 1321 | log.debug("Previous fwdObj for policy {} removed", tunnelId); |
| 1322 | if (future != null) { |
| 1323 | future.complete(null); |
| 1324 | } |
| 1325 | } |
| 1326 | |
| 1327 | @Override |
| 1328 | public void onError(Objective objective, ObjectiveError error) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1329 | log.error("Failed to remove previous fwdObj for policy {}: {}", tunnelId, error); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1330 | if (future != null) { |
| 1331 | future.complete(error); |
| 1332 | } |
| 1333 | } |
| 1334 | }; |
| 1335 | objectives.add(fwdBuilder.remove(context)); |
| 1336 | // We create the filtering objective to define the |
| 1337 | // permit traffic in the switch |
| 1338 | FilteringObjective.Builder filtBuilder = createFiltObjective(ingress.port(), ingressInner, ingressOuter); |
| 1339 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| 1340 | .builder() |
| 1341 | .setTunnelId(tunnelId) |
| 1342 | .setVlanId(egressVlan); |
| 1343 | filtBuilder.withMeta(treatment.build()); |
| 1344 | context = new DefaultObjectiveContext((objective) -> log.debug("FilterObj for policy {} revoked", tunnelId), |
| 1345 | (objective, error) -> |
| 1346 | log.warn("Failed to revoke filterObj for policy {}", |
| 1347 | tunnelId, error)); |
| 1348 | objectives.add(filtBuilder.remove(context)); |
| 1349 | |
| 1350 | for (Objective objective : objectives) { |
| 1351 | if (objective instanceof ForwardingObjective) { |
| 1352 | srManager.flowObjectiveService.forward(ingress.deviceId(), (ForwardingObjective) objective); |
| 1353 | } else { |
| 1354 | srManager.flowObjectiveService.filter(ingress.deviceId(), (FilteringObjective) objective); |
| 1355 | } |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | /** |
| 1360 | * Deletes the pseudo wire initiation. |
| 1361 | * |
| 1362 | * @param l2TunnelId the tunnel id |
| 1363 | * @param ingress the ingress connect point |
| 1364 | * @param future to perform an async operation |
| 1365 | * @param direction the direction: reverse of forward |
| 1366 | */ |
| 1367 | private void tearDownPseudoWireInit(long l2TunnelId, ConnectPoint ingress, |
| 1368 | CompletableFuture<ObjectiveError> future, Direction direction) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1369 | log.debug("Starting tearing dowing initation of pseudowire {} for direction {}.", |
| 1370 | l2TunnelId, direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1371 | String key = generateKey(l2TunnelId, direction); |
| 1372 | if (!l2InitiationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1373 | log.error("Abort delete of {} for {}: next does not exist in the store", INITIATION, key); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1374 | if (future != null) { |
| 1375 | future.complete(null); |
| 1376 | } |
| 1377 | return; |
| 1378 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1379 | |
| 1380 | // un-comment in case you want to delete groups used by the pw |
| 1381 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1382 | // not be deleted (it is referenced by other groups) |
| 1383 | /* |
Andreas Pantelopoulos | 9685125 | 2018-03-20 13:58:49 -0700 | [diff] [blame] | 1384 | NextObjective nextObjective = l2InitiationNextObjStore.get(key).value(); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1385 | ObjectiveContext context = new ObjectiveContext() { |
| 1386 | @Override |
| 1387 | public void onSuccess(Objective objective) { |
| 1388 | log.debug("Previous {} next for {} removed", INITIATION, key); |
| 1389 | if (future != null) { |
| 1390 | future.complete(null); |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | @Override |
| 1395 | public void onError(Objective objective, ObjectiveError error) { |
| 1396 | log.warn("Failed to remove previous {} next for {}: {}", INITIATION, key, error); |
| 1397 | if (future != null) { |
| 1398 | future.complete(error); |
| 1399 | } |
| 1400 | } |
| 1401 | }; |
| 1402 | srManager.flowObjectiveService.next(ingress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1403 | */ |
| 1404 | |
| 1405 | future.complete(null); |
| 1406 | l2InitiationNextObjStore.remove(key); |
| 1407 | } |
| 1408 | |
| 1409 | /** |
| 1410 | * Deletes the pseudo wire termination. |
| 1411 | * |
| 1412 | * @param l2Tunnel the tunnel |
| 1413 | * @param egress the egress connect point |
| 1414 | * @param future the async task |
| 1415 | * @param direction the direction of the tunnel |
| 1416 | */ |
| 1417 | private void tearDownPseudoWireTerm(L2Tunnel l2Tunnel, |
| 1418 | ConnectPoint egress, |
| 1419 | CompletableFuture<ObjectiveError> future, |
Andreas Pantelopoulos | 5b8c44b | 2018-05-02 16:21:20 -0700 | [diff] [blame] | 1420 | Direction direction) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1421 | log.debug("Starting tearing down termination for pseudowire {} direction {}.", |
| 1422 | l2Tunnel.tunnelId(), direction == FWD ? "forward" : "reverse"); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1423 | String key = generateKey(l2Tunnel.tunnelId(), direction); |
| 1424 | if (!l2TerminationNextObjStore.containsKey(key)) { |
Andreas Pantelopoulos | f172ef8 | 2018-04-10 19:34:47 -0700 | [diff] [blame] | 1425 | log.error("Abort delete of {} for {}: next does not exist in the store", TERMINATION, key); |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1426 | if (future != null) { |
| 1427 | future.complete(null); |
| 1428 | } |
| 1429 | return; |
| 1430 | } |
| 1431 | NextObjective nextObjective = l2TerminationNextObjStore.get(key).value(); |
| 1432 | ForwardingObjective.Builder fwdBuilder = createTermFwdObjective(l2Tunnel.pwLabel(), |
| 1433 | l2Tunnel.tunnelId(), |
| 1434 | egress.port(), |
| 1435 | nextObjective.id()); |
| 1436 | ObjectiveContext context = new DefaultObjectiveContext((objective) -> |
| 1437 | log.debug("FwdObj for {} {}, " + |
| 1438 | "direction {} removed", |
| 1439 | TERMINATION, |
| 1440 | l2Tunnel.tunnelId(), |
| 1441 | direction), |
| 1442 | (objective, error) -> |
| 1443 | log.warn("Failed to remove fwdObj " + |
| 1444 | "for {} {}" + |
| 1445 | ", direction {}", |
| 1446 | TERMINATION, |
| 1447 | l2Tunnel.tunnelId(), |
| 1448 | error, |
| 1449 | direction)); |
| 1450 | srManager.flowObjectiveService.forward(egress.deviceId(), fwdBuilder.remove(context)); |
| 1451 | |
| 1452 | // un-comment in case you want to delete groups used by the pw |
| 1453 | // however, this will break the update of pseudowires cause the L2 interface group can |
| 1454 | // not be deleted (it is referenced by other groups) |
| 1455 | /* |
| 1456 | context = new ObjectiveContext() { |
| 1457 | @Override |
| 1458 | public void onSuccess(Objective objective) { |
| 1459 | log.debug("Previous {} next for {} removed", TERMINATION, key); |
| 1460 | if (future != null) { |
| 1461 | future.complete(null); |
| 1462 | } |
| 1463 | } |
| 1464 | |
| 1465 | @Override |
| 1466 | public void onError(Objective objective, ObjectiveError error) { |
| 1467 | log.warn("Failed to remove previous {} next for {}: {}", TERMINATION, key, error); |
| 1468 | if (future != null) { |
| 1469 | future.complete(error); |
| 1470 | } |
| 1471 | } |
| 1472 | }; |
| 1473 | srManager.flowObjectiveService.next(egress.deviceId(), (NextObjective) nextObjective.copy().remove(context)); |
| 1474 | */ |
| 1475 | |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1476 | l2TerminationNextObjStore.remove(key); |
| 1477 | future.complete(null); |
| 1478 | } |
| 1479 | |
| 1480 | /** |
| 1481 | * Utilities to generate pw key. |
| 1482 | * |
| 1483 | * @param tunnelId the tunnel id |
| 1484 | * @param direction the direction of the pw |
| 1485 | * @return the key of the store |
| 1486 | */ |
| 1487 | private String generateKey(long tunnelId, Direction direction) { |
| 1488 | return String.format("%s-%s", tunnelId, direction); |
| 1489 | } |
Andreas Pantelopoulos | 4c7de13 | 2018-02-22 12:32:42 -0800 | [diff] [blame] | 1490 | } |