Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [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 | package org.onosproject.openstacknetworking.impl; |
| 17 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 18 | import org.onlab.packet.Ethernet; |
| 19 | import org.onlab.packet.IPv4; |
| 20 | import org.onlab.packet.IpAddress; |
| 21 | import org.onlab.packet.IpPrefix; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 22 | import org.onlab.packet.TCP; |
| 23 | import org.onlab.packet.TpPort; |
| 24 | import org.onlab.packet.UDP; |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 25 | import org.onlab.packet.VlanId; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 26 | import org.onlab.util.KryoNamespace; |
| 27 | import org.onosproject.core.ApplicationId; |
| 28 | import org.onosproject.core.CoreService; |
| 29 | import org.onosproject.net.DeviceId; |
| 30 | import org.onosproject.net.device.DeviceService; |
| 31 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 32 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 33 | import org.onosproject.net.flow.TrafficSelector; |
| 34 | import org.onosproject.net.flow.TrafficTreatment; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 35 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 36 | import org.onosproject.net.packet.InboundPacket; |
| 37 | import org.onosproject.net.packet.PacketContext; |
| 38 | import org.onosproject.net.packet.PacketProcessor; |
| 39 | import org.onosproject.net.packet.PacketService; |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 40 | import org.onosproject.openstacknetworking.api.ExternalPeerRouter; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 41 | import org.onosproject.openstacknetworking.api.InstancePort; |
| 42 | import org.onosproject.openstacknetworking.api.InstancePortService; |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 43 | import org.onosproject.openstacknetworking.api.OpenstackFlowRuleService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 44 | import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 45 | import org.onosproject.openstacknetworking.api.OpenstackRouterService; |
Jian Li | 2694976 | 2018-03-30 15:46:37 +0900 | [diff] [blame] | 46 | import org.onosproject.openstacknetworking.util.RulePopulatorUtil; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 47 | import org.onosproject.openstacknode.api.OpenstackNode; |
| 48 | import org.onosproject.openstacknode.api.OpenstackNodeService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 49 | import org.onosproject.store.serializers.KryoNamespaces; |
| 50 | import org.onosproject.store.service.ConsistentMap; |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 51 | import org.onosproject.store.service.DistributedSet; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 52 | import org.onosproject.store.service.Serializer; |
| 53 | import org.onosproject.store.service.StorageService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 54 | import org.openstack4j.model.network.IP; |
| 55 | import org.openstack4j.model.network.Network; |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 56 | import org.openstack4j.model.network.NetworkType; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 57 | import org.openstack4j.model.network.Port; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 58 | import org.openstack4j.model.network.Subnet; |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 59 | import org.osgi.service.component.annotations.Activate; |
| 60 | import org.osgi.service.component.annotations.Component; |
| 61 | import org.osgi.service.component.annotations.Deactivate; |
| 62 | import org.osgi.service.component.annotations.Reference; |
| 63 | import org.osgi.service.component.annotations.ReferenceCardinality; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 64 | import org.slf4j.Logger; |
| 65 | |
| 66 | import java.nio.ByteBuffer; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 67 | import java.util.Set; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 68 | import java.util.concurrent.ExecutorService; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 69 | import java.util.stream.Collectors; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 70 | |
| 71 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 72 | import static org.onlab.util.Tools.groupedThreads; |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame] | 73 | import static org.onosproject.openstacknetworking.api.Constants.DEFAULT_GATEWAY_MAC; |
| 74 | import static org.onosproject.openstacknetworking.api.Constants.GW_COMMON_TABLE; |
| 75 | import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| 76 | import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_SNAT_RULE; |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 77 | import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.externalIpFromSubnet; |
| 78 | import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.externalPeerRouterFromSubnet; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 79 | import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.GATEWAY; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 80 | import static org.slf4j.LoggerFactory.getLogger; |
| 81 | |
| 82 | /** |
| 83 | * Handle packets needs SNAT. |
| 84 | */ |
| 85 | @Component(immediate = true) |
| 86 | public class OpenstackRoutingSnatHandler { |
| 87 | |
| 88 | private final Logger log = getLogger(getClass()); |
| 89 | |
| 90 | private static final String ERR_PACKETIN = "Failed to handle packet in: "; |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 91 | private static final String ERR_UNSUPPORTED_NET_TYPE = "Unsupported network type"; |
Ray Milkey | 3717e60 | 2018-02-01 13:49:47 -0800 | [diff] [blame] | 92 | private static final long TIME_OUT_SNAT_PORT_MS = 120L * 1000L; |
sangho | 79d6a83 | 2017-05-02 14:53:46 +0900 | [diff] [blame] | 93 | private static final int TP_PORT_MINIMUM_NUM = 65000; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 94 | private static final int TP_PORT_MAXIMUM_NUM = 65535; |
| 95 | |
| 96 | private static final KryoNamespace.Builder NUMBER_SERIALIZER = KryoNamespace.newBuilder() |
| 97 | .register(KryoNamespaces.API); |
| 98 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 99 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 100 | protected CoreService coreService; |
| 101 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 102 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 103 | protected PacketService packetService; |
| 104 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 105 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 106 | protected StorageService storageService; |
| 107 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 108 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 109 | protected DeviceService deviceService; |
| 110 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 111 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 112 | protected InstancePortService instancePortService; |
| 113 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 114 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 115 | protected OpenstackNodeService osNodeService; |
| 116 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 117 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 118 | protected OpenstackNetworkService osNetworkService; |
| 119 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 120 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 121 | protected OpenstackRouterService osRouterService; |
| 122 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 123 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 124 | protected OpenstackFlowRuleService osFlowRuleService; |
| 125 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 126 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 127 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 128 | private final PacketProcessor packetProcessor = new InternalPacketProcessor(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 129 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 130 | private ConsistentMap<Integer, Long> allocatedPortNumMap; |
| 131 | private DistributedSet<Integer> unUsedPortNumSet; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 132 | private ApplicationId appId; |
| 133 | |
| 134 | @Activate |
| 135 | protected void activate() { |
| 136 | appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 137 | |
| 138 | allocatedPortNumMap = storageService.<Integer, Long>consistentMapBuilder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 139 | .withSerializer(Serializer.using(NUMBER_SERIALIZER.build())) |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 140 | .withName("openstackrouting-allocatedportnummap") |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 141 | .withApplicationId(appId) |
| 142 | .build(); |
| 143 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 144 | unUsedPortNumSet = storageService.<Integer>setBuilder() |
| 145 | .withName("openstackrouting-unusedportnumset") |
| 146 | .withSerializer(Serializer.using(KryoNamespaces.API)) |
| 147 | .build() |
| 148 | .asDistributedSet(); |
| 149 | |
| 150 | initializeUnusedPortNumSet(); |
| 151 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 152 | packetService.addProcessor(packetProcessor, PacketProcessor.director(1)); |
| 153 | log.info("Started"); |
| 154 | } |
| 155 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 156 | private void initializeUnusedPortNumSet() { |
| 157 | for (int i = TP_PORT_MINIMUM_NUM; i < TP_PORT_MAXIMUM_NUM; i++) { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 158 | if (!allocatedPortNumMap.containsKey(i)) { |
| 159 | unUsedPortNumSet.add(i); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 160 | } |
| 161 | } |
| 162 | |
| 163 | clearPortNumMap(); |
| 164 | } |
| 165 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 166 | @Deactivate |
| 167 | protected void deactivate() { |
| 168 | packetService.removeProcessor(packetProcessor); |
| 169 | eventExecutor.shutdown(); |
| 170 | log.info("Stopped"); |
| 171 | } |
| 172 | |
| 173 | private void processSnatPacket(PacketContext context, Ethernet eth) { |
| 174 | IPv4 iPacket = (IPv4) eth.getPayload(); |
| 175 | InboundPacket packetIn = context.inPacket(); |
| 176 | |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 177 | int patPort = getPortNum(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 178 | |
| 179 | InstancePort srcInstPort = instancePortService.instancePort(eth.getSourceMAC()); |
| 180 | if (srcInstPort == null) { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 181 | log.error(ERR_PACKETIN + "source host(MAC:{}) does not exist", |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 182 | eth.getSourceMAC()); |
| 183 | return; |
| 184 | } |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 185 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 186 | IpAddress srcIp = IpAddress.valueOf(iPacket.getSourceAddress()); |
| 187 | Subnet srcSubnet = getSourceSubnet(srcInstPort, srcIp); |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 188 | IpAddress externalGatewayIp = |
| 189 | externalIpFromSubnet(srcSubnet, osRouterService, osNetworkService); |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 190 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 191 | if (externalGatewayIp == null) { |
| 192 | return; |
| 193 | } |
| 194 | |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 195 | ExternalPeerRouter externalPeerRouter = |
| 196 | externalPeerRouterFromSubnet(srcSubnet, osRouterService, osNetworkService); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 197 | if (externalPeerRouter == null) { |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 198 | return; |
| 199 | } |
| 200 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 201 | populateSnatFlowRules(context.inPacket(), |
| 202 | srcInstPort, |
| 203 | TpPort.tpPort(patPort), |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 204 | externalGatewayIp, externalPeerRouter); |
| 205 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 206 | |
Ray Milkey | f0c4761 | 2017-09-28 11:29:38 -0700 | [diff] [blame] | 207 | packetOut(eth.duplicate(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 208 | packetIn.receivedFrom().deviceId(), |
| 209 | patPort, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 210 | externalGatewayIp, externalPeerRouter); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | private Subnet getSourceSubnet(InstancePort instance, IpAddress srcIp) { |
| 214 | Port osPort = osNetworkService.port(instance.portId()); |
| 215 | IP fixedIp = osPort.getFixedIps().stream() |
| 216 | .filter(ip -> IpAddress.valueOf(ip.getIpAddress()).equals(srcIp)) |
| 217 | .findAny().orElse(null); |
| 218 | if (fixedIp == null) { |
| 219 | return null; |
| 220 | } |
| 221 | return osNetworkService.subnet(fixedIp.getSubnetId()); |
| 222 | } |
| 223 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 224 | private void populateSnatFlowRules(InboundPacket packetIn, InstancePort srcInstPort, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 225 | TpPort patPort, IpAddress externalIp, ExternalPeerRouter externalPeerRouter) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 226 | Network osNet = osNetworkService.network(srcInstPort.networkId()); |
| 227 | if (osNet == null) { |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 228 | final String error = String.format("%s network %s not found", |
| 229 | ERR_PACKETIN, srcInstPort.networkId()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 230 | throw new IllegalStateException(error); |
| 231 | } |
| 232 | |
| 233 | setDownstreamRules(srcInstPort, |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 234 | osNet.getProviderSegID(), |
| 235 | osNet.getNetworkType(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 236 | externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 237 | externalPeerRouter, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 238 | patPort, |
| 239 | packetIn); |
| 240 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 241 | setUpstreamRules(osNet.getProviderSegID(), |
| 242 | osNet.getNetworkType(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 243 | externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 244 | externalPeerRouter, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 245 | patPort, |
| 246 | packetIn); |
| 247 | } |
| 248 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 249 | private void setDownstreamRules(InstancePort srcInstPort, String segmentId, |
| 250 | NetworkType networkType, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 251 | IpAddress externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 252 | ExternalPeerRouter externalPeerRouter, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 253 | TpPort patPort, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 254 | InboundPacket packetIn) { |
| 255 | IPv4 iPacket = (IPv4) packetIn.parsed().getPayload(); |
| 256 | IpAddress internalIp = IpAddress.valueOf(iPacket.getSourceAddress()); |
| 257 | |
| 258 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 259 | .matchEthType(Ethernet.TYPE_IPV4) |
| 260 | .matchIPProtocol(iPacket.getProtocol()) |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 261 | .matchIPDst(IpPrefix.valueOf(externalIp.getIp4Address(), 32)) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 262 | .matchIPSrc(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 263 | |
| 264 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 265 | .setEthDst(packetIn.parsed().getSourceMAC()) |
| 266 | .setIpDst(internalIp); |
| 267 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 268 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 269 | sBuilder.matchVlanId(externalPeerRouter.vlanId()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 270 | tBuilder.popVlan(); |
| 271 | } |
| 272 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 273 | switch (networkType) { |
| 274 | case VXLAN: |
| 275 | tBuilder.setTunnelId(Long.parseLong(segmentId)); |
| 276 | break; |
| 277 | case VLAN: |
| 278 | tBuilder.pushVlan() |
Daniel Park | c64b4c6 | 2018-05-09 18:13:39 +0900 | [diff] [blame] | 279 | .setVlanId(VlanId.vlanId(segmentId)); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 280 | break; |
| 281 | default: |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 282 | final String error = String.format("%s %s", |
| 283 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 284 | throw new IllegalStateException(error); |
| 285 | } |
| 286 | |
| 287 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 288 | switch (iPacket.getProtocol()) { |
| 289 | case IPv4.PROTOCOL_TCP: |
| 290 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 291 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getDestinationPort())) |
| 292 | .matchTcpDst(patPort); |
| 293 | tBuilder.setTcpDst(TpPort.tpPort(tcpPacket.getSourcePort())); |
| 294 | break; |
| 295 | case IPv4.PROTOCOL_UDP: |
| 296 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 297 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getDestinationPort())) |
| 298 | .matchUdpDst(patPort); |
| 299 | tBuilder.setUdpDst(TpPort.tpPort(udpPacket.getSourcePort())); |
| 300 | break; |
| 301 | default: |
| 302 | break; |
| 303 | } |
| 304 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 305 | OpenstackNode srcNode = osNodeService.node(srcInstPort.deviceId()); |
| 306 | osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 307 | TrafficTreatment.Builder tmpBuilder = |
| 308 | DefaultTrafficTreatment.builder(tBuilder.build()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 309 | switch (networkType) { |
| 310 | case VXLAN: |
| 311 | tmpBuilder.extension(RulePopulatorUtil.buildExtension( |
| 312 | deviceService, |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 313 | gNode.intgBridge(), |
| 314 | srcNode.dataIp().getIp4Address()), gNode.intgBridge()) |
| 315 | .setOutput(gNode.tunnelPortNum()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 316 | break; |
| 317 | case VLAN: |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 318 | tmpBuilder.setOutput(gNode.vlanPortNum()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 319 | break; |
| 320 | default: |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 321 | final String error = String.format("%s %s", |
| 322 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 323 | throw new IllegalStateException(error); |
| 324 | } |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 325 | |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 326 | osFlowRuleService.setRule( |
| 327 | appId, |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 328 | gNode.intgBridge(), |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 329 | sBuilder.build(), |
| 330 | tmpBuilder.build(), |
| 331 | PRIORITY_SNAT_RULE, |
| 332 | GW_COMMON_TABLE, |
| 333 | true); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 334 | }); |
| 335 | } |
| 336 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 337 | private void setUpstreamRules(String segmentId, NetworkType networkType, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 338 | IpAddress externalIp, ExternalPeerRouter externalPeerRouter, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 339 | TpPort patPort, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 340 | InboundPacket packetIn) { |
| 341 | IPv4 iPacket = (IPv4) packetIn.parsed().getPayload(); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 342 | |
| 343 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 344 | .matchEthType(Ethernet.TYPE_IPV4) |
| 345 | .matchIPProtocol(iPacket.getProtocol()) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 346 | .matchIPSrc(IpPrefix.valueOf(iPacket.getSourceAddress(), 32)) |
| 347 | .matchIPDst(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 348 | |
| 349 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 350 | |
| 351 | switch (networkType) { |
| 352 | case VXLAN: |
| 353 | sBuilder.matchTunnelId(Long.parseLong(segmentId)); |
| 354 | break; |
| 355 | case VLAN: |
| 356 | sBuilder.matchVlanId(VlanId.vlanId(segmentId)); |
| 357 | tBuilder.popVlan(); |
| 358 | break; |
| 359 | default: |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 360 | final String error = String.format("%s %s", |
| 361 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 362 | throw new IllegalStateException(error); |
| 363 | } |
| 364 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 365 | switch (iPacket.getProtocol()) { |
| 366 | case IPv4.PROTOCOL_TCP: |
| 367 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 368 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getSourcePort())) |
| 369 | .matchTcpDst(TpPort.tpPort(tcpPacket.getDestinationPort())); |
| 370 | tBuilder.setTcpSrc(patPort) |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 371 | .setEthDst(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 372 | break; |
| 373 | case IPv4.PROTOCOL_UDP: |
| 374 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 375 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getSourcePort())) |
| 376 | .matchUdpDst(TpPort.tpPort(udpPacket.getDestinationPort())); |
| 377 | tBuilder.setUdpSrc(patPort) |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 378 | .setEthDst(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 379 | break; |
| 380 | default: |
| 381 | log.debug("Unsupported IPv4 protocol {}"); |
| 382 | break; |
| 383 | } |
| 384 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 385 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 386 | tBuilder.pushVlan().setVlanId(externalPeerRouter.vlanId()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 387 | } |
| 388 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 389 | tBuilder.setIpSrc(externalIp); |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 390 | osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 391 | TrafficTreatment.Builder tmpBuilder = |
| 392 | DefaultTrafficTreatment.builder(tBuilder.build()); |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 393 | tmpBuilder.setOutput(gNode.uplinkPortNum()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 394 | |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 395 | osFlowRuleService.setRule( |
| 396 | appId, |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 397 | gNode.intgBridge(), |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 398 | sBuilder.build(), |
| 399 | tmpBuilder.build(), |
| 400 | PRIORITY_SNAT_RULE, |
| 401 | GW_COMMON_TABLE, |
| 402 | true); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 403 | }); |
| 404 | } |
| 405 | |
| 406 | private void packetOut(Ethernet ethPacketIn, DeviceId srcDevice, int patPort, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 407 | IpAddress externalIp, ExternalPeerRouter externalPeerRouter) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 408 | IPv4 iPacket = (IPv4) ethPacketIn.getPayload(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 409 | switch (iPacket.getProtocol()) { |
| 410 | case IPv4.PROTOCOL_TCP: |
| 411 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 412 | tcpPacket.setSourcePort(patPort); |
| 413 | tcpPacket.resetChecksum(); |
| 414 | tcpPacket.setParent(iPacket); |
| 415 | iPacket.setPayload(tcpPacket); |
| 416 | break; |
| 417 | case IPv4.PROTOCOL_UDP: |
| 418 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 419 | udpPacket.setSourcePort(patPort); |
| 420 | udpPacket.resetChecksum(); |
| 421 | udpPacket.setParent(iPacket); |
| 422 | iPacket.setPayload(udpPacket); |
| 423 | break; |
| 424 | default: |
| 425 | log.trace("Temporally, this method can process UDP and TCP protocol."); |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | iPacket.setSourceAddress(externalIp.toString()); |
| 430 | iPacket.resetChecksum(); |
| 431 | iPacket.setParent(ethPacketIn); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 432 | ethPacketIn.setSourceMACAddress(DEFAULT_GATEWAY_MAC); |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 433 | ethPacketIn.setDestinationMACAddress(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 434 | ethPacketIn.setPayload(iPacket); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 435 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 436 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 437 | ethPacketIn.setVlanID(externalPeerRouter.vlanId().toShort()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 438 | } |
| 439 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 440 | ethPacketIn.resetChecksum(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 441 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 442 | OpenstackNode srcNode = osNodeService.node(srcDevice); |
| 443 | if (srcNode == null) { |
| 444 | final String error = String.format("Cannot find openstack node for %s", |
| 445 | srcDevice); |
| 446 | throw new IllegalStateException(error); |
| 447 | } |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 448 | |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 449 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 450 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 451 | packetService.emit(new DefaultOutboundPacket( |
| 452 | srcDevice, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 453 | tBuilder.setOutput(srcNode.uplinkPortNum()).build(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 454 | ByteBuffer.wrap(ethPacketIn.serialize()))); |
| 455 | } |
| 456 | |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 457 | private int getPortNum() { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 458 | if (unUsedPortNumSet.isEmpty()) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 459 | clearPortNumMap(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 460 | } |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 461 | int portNum = findUnusedPortNum(); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 462 | if (portNum != 0) { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 463 | unUsedPortNumSet.remove(portNum); |
| 464 | allocatedPortNumMap.put(portNum, System.currentTimeMillis()); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 465 | } |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 466 | return portNum; |
| 467 | } |
| 468 | |
| 469 | private int findUnusedPortNum() { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 470 | return unUsedPortNumSet.stream().findAny().orElse(0); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 471 | } |
| 472 | |
| 473 | private void clearPortNumMap() { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 474 | allocatedPortNumMap.entrySet().forEach(e -> { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 475 | if (System.currentTimeMillis() - e.getValue().value() > TIME_OUT_SNAT_PORT_MS) { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 476 | allocatedPortNumMap.remove(e.getKey()); |
| 477 | unUsedPortNumSet.add(e.getKey()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 478 | } |
| 479 | }); |
| 480 | } |
| 481 | |
| 482 | private class InternalPacketProcessor implements PacketProcessor { |
| 483 | |
| 484 | @Override |
| 485 | public void process(PacketContext context) { |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 486 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 487 | if (context.isHandled()) { |
| 488 | return; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 489 | } |
| 490 | |
| 491 | InboundPacket pkt = context.inPacket(); |
| 492 | Ethernet eth = pkt.parsed(); |
| 493 | if (eth == null || eth.getEtherType() == Ethernet.TYPE_ARP) { |
| 494 | return; |
| 495 | } |
| 496 | |
| 497 | IPv4 iPacket = (IPv4) eth.getPayload(); |
| 498 | switch (iPacket.getProtocol()) { |
| 499 | case IPv4.PROTOCOL_ICMP: |
| 500 | break; |
| 501 | case IPv4.PROTOCOL_UDP: |
| 502 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 503 | if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT && |
| 504 | udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) { |
| 505 | // don't process DHCP |
| 506 | break; |
| 507 | } |
| 508 | default: |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 509 | eventExecutor.execute(() -> { |
| 510 | |
| 511 | if (!isRelevantHelper(context)) { |
| 512 | return; |
| 513 | } |
| 514 | |
| 515 | processSnatPacket(context, eth); |
| 516 | }); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 517 | break; |
| 518 | } |
| 519 | } |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 520 | |
| 521 | private boolean isRelevantHelper(PacketContext context) { |
| 522 | Set<DeviceId> gateways = osNodeService.completeNodes(GATEWAY) |
| 523 | .stream().map(OpenstackNode::intgBridge) |
| 524 | .collect(Collectors.toSet()); |
| 525 | |
| 526 | return gateways.contains(context.inPacket().receivedFrom().deviceId()); |
| 527 | } |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 528 | } |
| 529 | } |