Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 0947d7e | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 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; |
| 18 | |
Saurav Das | 261c300 | 2017-06-13 15:35:54 -0700 | [diff] [blame] | 19 | import com.google.common.collect.Sets; |
| 20 | |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 21 | import org.onlab.packet.IpPrefix; |
| 22 | import org.onlab.packet.MacAddress; |
Charles Chan | 90772a7 | 2017-02-08 15:52:08 -0800 | [diff] [blame] | 23 | import org.onlab.packet.VlanId; |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 24 | import org.onosproject.net.ConnectPoint; |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 25 | import org.onosproject.net.HostLocation; |
| 26 | import org.onosproject.net.PortNumber; |
| 27 | import org.onosproject.net.host.HostEvent; |
Ray Milkey | a815431 | 2017-08-08 13:00:43 -0700 | [diff] [blame] | 28 | import org.onosproject.routeservice.ResolvedRoute; |
| 29 | import org.onosproject.routeservice.RouteEvent; |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 30 | import org.onosproject.net.DeviceId; |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 31 | import org.onosproject.routeservice.RouteInfo; |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 32 | import org.slf4j.Logger; |
| 33 | import org.slf4j.LoggerFactory; |
| 34 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 35 | import java.util.List; |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 36 | import java.util.Collection; |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 37 | import java.util.Objects; |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 38 | import java.util.Optional; |
| 39 | import java.util.Set; |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 40 | import java.util.stream.Collectors; |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 41 | |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 42 | /** |
| 43 | * Handles RouteEvent and manages routing entries. |
| 44 | */ |
| 45 | public class RouteHandler { |
| 46 | private static final Logger log = LoggerFactory.getLogger(RouteHandler.class); |
| 47 | private final SegmentRoutingManager srManager; |
| 48 | |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 49 | RouteHandler(SegmentRoutingManager srManager) { |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 50 | this.srManager = srManager; |
| 51 | } |
| 52 | |
| 53 | protected void init(DeviceId deviceId) { |
Charles Chan | 7d20a4e | 2018-04-13 14:01:49 -0400 | [diff] [blame] | 54 | srManager.routeService.getRouteTables().stream() |
| 55 | .map(srManager.routeService::getRoutes) |
| 56 | .flatMap(Collection::stream) |
| 57 | .map(RouteInfo::allRoutes) |
Charles Chan | 12a8a84 | 2020-02-14 13:23:57 -0800 | [diff] [blame] | 58 | .filter(allRoutes -> allRoutes.stream().anyMatch(resolvedRoute -> |
| 59 | srManager.nextHopLocations(resolvedRoute).stream() |
| 60 | .anyMatch(cp -> deviceId.equals(cp.deviceId())))) |
| 61 | .forEach(rr -> processRouteAddedInternal(rr, true)); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 62 | } |
| 63 | |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 64 | void processRouteAdded(RouteEvent event) { |
Charles Chan | 12a8a84 | 2020-02-14 13:23:57 -0800 | [diff] [blame] | 65 | processRouteAddedInternal(event.alternatives(), false); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 66 | } |
| 67 | |
Charles Chan | 12a8a84 | 2020-02-14 13:23:57 -0800 | [diff] [blame] | 68 | /** |
| 69 | * Internal logic that handles route addition. |
| 70 | * |
| 71 | * @param routes collection of routes to be processed |
| 72 | * @param populateRouteOnly true if we only want to populateRoute but not populateSubnet. |
| 73 | * Set it to true when initializing a device coming up. |
| 74 | * populateSubnet will be done when link comes up later so it is redundant. |
| 75 | * populateRoute still needs to be done for statically configured next hop hosts. |
| 76 | */ |
| 77 | private void processRouteAddedInternal(Collection<ResolvedRoute> routes, boolean populateRouteOnly) { |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 78 | if (!isReady()) { |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 79 | log.info("System is not ready. Skip adding route for {}", routes); |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 80 | return; |
| 81 | } |
| 82 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 83 | log.info("processRouteAddedInternal. routes={}", routes); |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 84 | |
Charles Chan | 482b642 | 2018-04-09 11:52:08 -0400 | [diff] [blame] | 85 | if (routes.size() > 2) { |
| 86 | log.info("Route {} has more than two next hops. Do not process route change", routes); |
| 87 | return; |
| 88 | } |
| 89 | |
Charles Chan | 12a8a84 | 2020-02-14 13:23:57 -0800 | [diff] [blame] | 90 | ResolvedRoute rr = routes.stream().findFirst().orElse(null); |
| 91 | if (rr == null) { |
| 92 | log.warn("No resolved route found. Abort processRouteAddedInternal"); |
| 93 | } |
| 94 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 95 | Set<ConnectPoint> allLocations = Sets.newHashSet(); |
| 96 | Set<IpPrefix> allPrefixes = Sets.newHashSet(); |
| 97 | routes.forEach(route -> { |
| 98 | allLocations.addAll(srManager.nextHopLocations(route)); |
| 99 | allPrefixes.add(route.prefix()); |
| 100 | }); |
| 101 | log.debug("RouteAdded. populateSubnet {}, {}", allLocations, allPrefixes); |
| 102 | srManager.defaultRoutingHandler.populateSubnet(allLocations, allPrefixes); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 103 | |
Charles Chan | 12a8a84 | 2020-02-14 13:23:57 -0800 | [diff] [blame] | 104 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 105 | routes.forEach(route -> { |
| 106 | IpPrefix prefix = route.prefix(); |
| 107 | MacAddress nextHopMac = route.nextHopMac(); |
| 108 | VlanId nextHopVlan = route.nextHopVlan(); |
| 109 | Set<ConnectPoint> locations = srManager.nextHopLocations(route); |
| 110 | |
| 111 | locations.forEach(location -> { |
| 112 | log.debug("RouteAdded. addSubnet {}, {}", location, prefix); |
| 113 | srManager.deviceConfiguration.addSubnet(location, prefix); |
| 114 | log.debug("RouteAdded populateRoute {}, {}, {}, {}", location, prefix, nextHopMac, nextHopVlan); |
| 115 | srManager.defaultRoutingHandler.populateRoute(location.deviceId(), prefix, |
Ruchi Sahota | 71bcb4e | 2019-01-28 01:08:18 +0000 | [diff] [blame] | 116 | nextHopMac, nextHopVlan, location.port(), false); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 117 | }); |
| 118 | }); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 121 | void processRouteUpdated(RouteEvent event) { |
Charles Chan | fbcb881 | 2018-04-18 18:41:05 -0700 | [diff] [blame] | 122 | processRouteUpdatedInternal(Sets.newHashSet(event.alternatives()), |
| 123 | Sets.newHashSet(event.prevAlternatives())); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | void processAlternativeRoutesChanged(RouteEvent event) { |
Charles Chan | fbcb881 | 2018-04-18 18:41:05 -0700 | [diff] [blame] | 127 | processRouteUpdatedInternal(Sets.newHashSet(event.alternatives()), |
| 128 | Sets.newHashSet(event.prevAlternatives())); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | private void processRouteUpdatedInternal(Set<ResolvedRoute> routes, Set<ResolvedRoute> oldRoutes) { |
| 132 | if (!isReady()) { |
| 133 | log.info("System is not ready. Skip updating route for {} -> {}", oldRoutes, routes); |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | log.info("processRouteUpdatedInternal. routes={}, oldRoutes={}", routes, oldRoutes); |
| 138 | |
Charles Chan | 482b642 | 2018-04-09 11:52:08 -0400 | [diff] [blame] | 139 | if (routes.size() > 2) { |
| 140 | log.info("Route {} has more than two next hops. Do not process route change", routes); |
| 141 | return; |
| 142 | } |
| 143 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 144 | Set<ConnectPoint> allLocations = Sets.newHashSet(); |
| 145 | Set<IpPrefix> allPrefixes = Sets.newHashSet(); |
| 146 | routes.forEach(route -> { |
| 147 | allLocations.addAll(srManager.nextHopLocations(route)); |
| 148 | allPrefixes.add(route.prefix()); |
| 149 | }); |
Charles Chan | 482b642 | 2018-04-09 11:52:08 -0400 | [diff] [blame] | 150 | |
| 151 | // Just come back from an invalid next hop count |
| 152 | // Revoke subnet from all locations and reset oldRoutes such that system will be reprogrammed from scratch |
| 153 | if (oldRoutes.size() > 2) { |
| 154 | log.info("Revoke subnet {} and reset oldRoutes"); |
| 155 | srManager.defaultRoutingHandler.revokeSubnet(allPrefixes); |
| 156 | oldRoutes = Sets.newHashSet(); |
| 157 | } |
| 158 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 159 | log.debug("RouteUpdated. populateSubnet {}, {}", allLocations, allPrefixes); |
| 160 | srManager.defaultRoutingHandler.populateSubnet(allLocations, allPrefixes); |
| 161 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 162 | Set<ResolvedRoute> toBeRemoved = Sets.difference(oldRoutes, routes).immutableCopy(); |
| 163 | Set<ResolvedRoute> toBeAdded = Sets.difference(routes, oldRoutes).immutableCopy(); |
| 164 | |
| 165 | toBeRemoved.forEach(route -> { |
| 166 | srManager.nextHopLocations(route).forEach(oldLocation -> { |
Charles Chan | 06f626c | 2018-02-05 17:20:05 -0800 | [diff] [blame] | 167 | if (toBeAdded.stream().map(srManager::nextHopLocations) |
| 168 | .flatMap(Set::stream).map(ConnectPoint::deviceId) |
| 169 | .noneMatch(deviceId -> deviceId.equals(oldLocation.deviceId()))) { |
| 170 | IpPrefix prefix = route.prefix(); |
| 171 | log.debug("RouteUpdated. removeSubnet {}, {}", oldLocation, prefix); |
| 172 | srManager.deviceConfiguration.removeSubnet(oldLocation, prefix); |
| 173 | // We don't remove the flow on the old location in occasion of two next hops becoming one |
| 174 | // since the populateSubnet will point the old location to the new location via spine. |
| 175 | } |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 176 | }); |
| 177 | }); |
| 178 | |
| 179 | toBeAdded.forEach(route -> { |
| 180 | IpPrefix prefix = route.prefix(); |
| 181 | MacAddress nextHopMac = route.nextHopMac(); |
| 182 | VlanId nextHopVlan = route.nextHopVlan(); |
| 183 | Set<ConnectPoint> locations = srManager.nextHopLocations(route); |
| 184 | |
| 185 | locations.forEach(location -> { |
| 186 | log.debug("RouteUpdated. addSubnet {}, {}", location, prefix); |
| 187 | srManager.deviceConfiguration.addSubnet(location, prefix); |
| 188 | log.debug("RouteUpdated. populateRoute {}, {}, {}, {}", location, prefix, nextHopMac, nextHopVlan); |
| 189 | srManager.defaultRoutingHandler.populateRoute(location.deviceId(), prefix, |
Ruchi Sahota | 71bcb4e | 2019-01-28 01:08:18 +0000 | [diff] [blame] | 190 | nextHopMac, nextHopVlan, location.port(), false); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 191 | }); |
| 192 | }); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 193 | } |
| 194 | |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 195 | void processRouteRemoved(RouteEvent event) { |
Charles Chan | fbcb881 | 2018-04-18 18:41:05 -0700 | [diff] [blame] | 196 | processRouteRemovedInternal(event.alternatives()); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 197 | } |
| 198 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 199 | private void processRouteRemovedInternal(Collection<ResolvedRoute> routes) { |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 200 | if (!isReady()) { |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 201 | log.info("System is not ready. Skip removing route for {}", routes); |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 202 | return; |
| 203 | } |
| 204 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 205 | log.info("processRouteRemovedInternal. routes={}", routes); |
Charles Chan | f0ae41e | 2017-08-23 13:55:39 -0700 | [diff] [blame] | 206 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 207 | Set<IpPrefix> allPrefixes = Sets.newHashSet(); |
| 208 | routes.forEach(route -> { |
| 209 | allPrefixes.add(route.prefix()); |
| 210 | }); |
| 211 | log.debug("RouteRemoved. revokeSubnet {}", allPrefixes); |
| 212 | srManager.defaultRoutingHandler.revokeSubnet(allPrefixes); |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 213 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 214 | routes.forEach(route -> { |
| 215 | IpPrefix prefix = route.prefix(); |
| 216 | MacAddress nextHopMac = route.nextHopMac(); |
| 217 | VlanId nextHopVlan = route.nextHopVlan(); |
| 218 | Set<ConnectPoint> locations = srManager.nextHopLocations(route); |
| 219 | |
| 220 | locations.forEach(location -> { |
| 221 | log.debug("RouteRemoved. removeSubnet {}, {}", location, prefix); |
| 222 | srManager.deviceConfiguration.removeSubnet(location, prefix); |
Charles Chan | c4d6888 | 2018-03-15 16:41:10 -0700 | [diff] [blame] | 223 | // We don't need to call revokeRoute again since revokeSubnet will remove the prefix |
| 224 | // from all devices, including the ones that next hop attaches to. |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 225 | |
| 226 | // Also remove redirection flows on the pair device if exists. |
| 227 | Optional<DeviceId> pairDeviceId = srManager.getPairDeviceId(location.deviceId()); |
Saurav Das | ec683dc | 2018-04-27 18:42:30 -0700 | [diff] [blame] | 228 | Optional<PortNumber> pairLocalPort = srManager.getPairLocalPort(location.deviceId()); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 229 | if (pairDeviceId.isPresent() && pairLocalPort.isPresent()) { |
| 230 | // NOTE: Since the pairLocalPort is trunk port, use assigned vlan of original port |
| 231 | // when the host is untagged |
| 232 | VlanId vlanId = Optional.ofNullable(srManager.getInternalVlanId(location)).orElse(nextHopVlan); |
| 233 | |
| 234 | log.debug("RouteRemoved. revokeRoute {}, {}, {}, {}", location, prefix, nextHopMac, nextHopVlan); |
| 235 | srManager.defaultRoutingHandler.revokeRoute(pairDeviceId.get(), prefix, |
Ruchi Sahota | 71bcb4e | 2019-01-28 01:08:18 +0000 | [diff] [blame] | 236 | nextHopMac, vlanId, pairLocalPort.get(), false); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 237 | } |
| 238 | }); |
| 239 | }); |
| 240 | } |
| 241 | |
| 242 | void processHostMovedEvent(HostEvent event) { |
| 243 | log.info("processHostMovedEvent {}", event); |
| 244 | MacAddress hostMac = event.subject().mac(); |
| 245 | VlanId hostVlanId = event.subject().vlan(); |
Ruchi Sahota | 0786932 | 2019-05-09 17:26:14 -0400 | [diff] [blame] | 246 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 247 | Set<HostLocation> prevLocations = event.prevSubject().locations(); |
| 248 | Set<HostLocation> newLocations = event.subject().locations(); |
Ruchi Sahota | 0786932 | 2019-05-09 17:26:14 -0400 | [diff] [blame] | 249 | Set<ConnectPoint> connectPoints = newLocations.stream() |
| 250 | .map(l -> (ConnectPoint) l).collect(Collectors.toSet()); |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 251 | List<Set<IpPrefix>> batchedSubnets = |
| 252 | srManager.deviceConfiguration.getBatchedSubnets(event.subject().id()); |
Ruchi Sahota | 0786932 | 2019-05-09 17:26:14 -0400 | [diff] [blame] | 253 | Set<DeviceId> newDeviceIds = newLocations.stream().map(HostLocation::deviceId) |
| 254 | .collect(Collectors.toSet()); |
| 255 | |
| 256 | // Set of deviceIDs of the previous locations where the host was connected |
| 257 | // Used to determine if host moved to different connect points |
| 258 | // on same device or moved to a different device altogether |
| 259 | Set<DeviceId> oldDeviceIds = prevLocations.stream().map(HostLocation::deviceId) |
| 260 | .collect(Collectors.toSet()); |
| 261 | |
| 262 | // L3 Ucast bucket needs to be updated only once per host |
| 263 | // and only when the no. of routes with the host as next-hop is not zero |
| 264 | if (!batchedSubnets.isEmpty()) { |
| 265 | // For each new location, if NextObj exists for the host, update with new location .. |
| 266 | Sets.difference(newLocations, prevLocations).forEach(newLocation -> { |
| 267 | int nextId = srManager.getMacVlanNextObjectiveId(newLocation.deviceId(), |
| 268 | hostMac, hostVlanId, null, false); |
| 269 | VlanId vlanId = Optional.ofNullable(srManager.getInternalVlanId(newLocation)).orElse(hostVlanId); |
| 270 | |
| 271 | if (nextId != -1) { |
| 272 | //Update the nextId group bucket |
| 273 | log.debug("HostMoved. NextId exists, update L3 Ucast Group Bucket {}, {}, {} --> {}", |
| 274 | newLocation, hostMac, vlanId, nextId); |
| 275 | srManager.updateMacVlanTreatment(newLocation.deviceId(), hostMac, vlanId, |
| 276 | newLocation.port(), nextId); |
| 277 | } else { |
| 278 | log.debug("HostMoved. NextId does not exist for this location {}, host {}/{}", |
| 279 | newLocation, hostMac, vlanId); |
| 280 | } |
| 281 | }); |
| 282 | } |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 283 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 284 | batchedSubnets.forEach(subnets -> { |
| 285 | log.debug("HostMoved. populateSubnet {}, {}", newLocations, subnets); |
| 286 | srManager.defaultRoutingHandler.populateSubnet(connectPoints, subnets); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 287 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 288 | subnets.forEach(prefix -> { |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 289 | // For each old location |
| 290 | Sets.difference(prevLocations, newLocations).forEach(prevLocation -> { |
Ruchi Sahota | 71bcb4e | 2019-01-28 01:08:18 +0000 | [diff] [blame] | 291 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 292 | // Remove flows for unchanged IPs only when the host moves from a switch to another. |
| 293 | // Otherwise, do not remove and let the adding part update the old flow |
| 294 | if (newDeviceIds.contains(prevLocation.deviceId())) { |
| 295 | return; |
| 296 | } |
Ruchi Sahota | 71bcb4e | 2019-01-28 01:08:18 +0000 | [diff] [blame] | 297 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 298 | log.debug("HostMoved. removeSubnet {}, {}", prevLocation, prefix); |
| 299 | srManager.deviceConfiguration.removeSubnet(prevLocation, prefix); |
Charles Chan | 4dcd510 | 2019-02-28 15:40:57 -0800 | [diff] [blame] | 300 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 301 | // Do not remove flow from a device if the route is still reachable via its pair device. |
| 302 | // populateSubnet will update the flow to point to its pair device via spine. |
| 303 | DeviceId pairDeviceId = srManager.getPairDeviceId(prevLocation.deviceId()).orElse(null); |
| 304 | if (newLocations.stream().anyMatch(n -> n.deviceId().equals(pairDeviceId))) { |
| 305 | return; |
| 306 | } |
Charles Chan | 4dcd510 | 2019-02-28 15:40:57 -0800 | [diff] [blame] | 307 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 308 | log.debug("HostMoved. revokeRoute {}, {}, {}, {}", prevLocation, prefix, hostMac, hostVlanId); |
| 309 | srManager.defaultRoutingHandler.revokeRoute(prevLocation.deviceId(), prefix, |
| 310 | hostMac, hostVlanId, prevLocation.port(), false); |
| 311 | }); |
Charles Chan | 4dcd510 | 2019-02-28 15:40:57 -0800 | [diff] [blame] | 312 | |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 313 | // For each new location, add all new IPs. |
| 314 | Sets.difference(newLocations, prevLocations).forEach(newLocation -> { |
| 315 | log.debug("HostMoved. addSubnet {}, {}", newLocation, prefix); |
| 316 | srManager.deviceConfiguration.addSubnet(newLocation, prefix); |
| 317 | |
| 318 | //its a new connect point, not a move from an existing device, populateRoute |
| 319 | if (!oldDeviceIds.contains(newLocation.deviceId())) { |
| 320 | log.debug("HostMoved. populateRoute {}, {}, {}, {}", newLocation, prefix, hostMac, hostVlanId); |
| 321 | srManager.defaultRoutingHandler.populateRoute(newLocation.deviceId(), prefix, |
| 322 | hostMac, hostVlanId, newLocation.port(), false); |
Charles Chan | 5eec3b1 | 2019-04-18 14:30:41 -0700 | [diff] [blame] | 323 | } |
| 324 | }); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 325 | }); |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 326 | }); |
Ruchi Sahota | 0786932 | 2019-05-09 17:26:14 -0400 | [diff] [blame] | 327 | |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 328 | } |
| 329 | |
Charles Chan | ee8dbf8 | 2017-06-22 14:15:05 -0700 | [diff] [blame] | 330 | private boolean isReady() { |
| 331 | return Objects.nonNull(srManager.deviceConfiguration) && |
Charles Chan | 910be6a | 2017-08-23 14:46:43 -0700 | [diff] [blame] | 332 | Objects.nonNull(srManager.defaultRoutingHandler); |
| 333 | } |
Charles Chan | debfea3 | 2016-10-24 14:52:01 -0700 | [diff] [blame] | 334 | } |