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; |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 95 | private static final int VM_PREFIX = 32; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 96 | |
| 97 | private static final KryoNamespace.Builder NUMBER_SERIALIZER = KryoNamespace.newBuilder() |
| 98 | .register(KryoNamespaces.API); |
| 99 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 100 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 101 | protected CoreService coreService; |
| 102 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 103 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 104 | protected PacketService packetService; |
| 105 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 106 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 107 | protected StorageService storageService; |
| 108 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 109 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 110 | protected DeviceService deviceService; |
| 111 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 112 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 113 | protected InstancePortService instancePortService; |
| 114 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 115 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 116 | protected OpenstackNodeService osNodeService; |
| 117 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 118 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 119 | protected OpenstackNetworkService osNetworkService; |
| 120 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 121 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 122 | protected OpenstackRouterService osRouterService; |
| 123 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 124 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 125 | protected OpenstackFlowRuleService osFlowRuleService; |
| 126 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 127 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 128 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 129 | private final PacketProcessor packetProcessor = new InternalPacketProcessor(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 130 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 131 | private ConsistentMap<Integer, Long> allocatedPortNumMap; |
| 132 | private DistributedSet<Integer> unUsedPortNumSet; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 133 | private ApplicationId appId; |
| 134 | |
| 135 | @Activate |
| 136 | protected void activate() { |
| 137 | appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 138 | |
| 139 | allocatedPortNumMap = storageService.<Integer, Long>consistentMapBuilder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 140 | .withSerializer(Serializer.using(NUMBER_SERIALIZER.build())) |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 141 | .withName("openstackrouting-allocatedportnummap") |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 142 | .withApplicationId(appId) |
| 143 | .build(); |
| 144 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 145 | unUsedPortNumSet = storageService.<Integer>setBuilder() |
| 146 | .withName("openstackrouting-unusedportnumset") |
| 147 | .withSerializer(Serializer.using(KryoNamespaces.API)) |
| 148 | .build() |
| 149 | .asDistributedSet(); |
| 150 | |
| 151 | initializeUnusedPortNumSet(); |
| 152 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 153 | packetService.addProcessor(packetProcessor, PacketProcessor.director(1)); |
| 154 | log.info("Started"); |
| 155 | } |
| 156 | |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 157 | private void initializeUnusedPortNumSet() { |
| 158 | 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] | 159 | if (!allocatedPortNumMap.containsKey(i)) { |
| 160 | unUsedPortNumSet.add(i); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 161 | } |
| 162 | } |
| 163 | |
| 164 | clearPortNumMap(); |
| 165 | } |
| 166 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 167 | @Deactivate |
| 168 | protected void deactivate() { |
| 169 | packetService.removeProcessor(packetProcessor); |
| 170 | eventExecutor.shutdown(); |
| 171 | log.info("Stopped"); |
| 172 | } |
| 173 | |
| 174 | private void processSnatPacket(PacketContext context, Ethernet eth) { |
| 175 | IPv4 iPacket = (IPv4) eth.getPayload(); |
| 176 | InboundPacket packetIn = context.inPacket(); |
| 177 | |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 178 | int patPort = getPortNum(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 179 | |
| 180 | InstancePort srcInstPort = instancePortService.instancePort(eth.getSourceMAC()); |
| 181 | if (srcInstPort == null) { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 182 | log.error(ERR_PACKETIN + "source host(MAC:{}) does not exist", |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 183 | eth.getSourceMAC()); |
| 184 | return; |
| 185 | } |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 186 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 187 | IpAddress srcIp = IpAddress.valueOf(iPacket.getSourceAddress()); |
| 188 | Subnet srcSubnet = getSourceSubnet(srcInstPort, srcIp); |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 189 | IpAddress externalGatewayIp = |
| 190 | externalIpFromSubnet(srcSubnet, osRouterService, osNetworkService); |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 191 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 192 | if (externalGatewayIp == null) { |
| 193 | return; |
| 194 | } |
| 195 | |
Jian Li | ebde74d | 2018-11-14 00:18:57 +0900 | [diff] [blame] | 196 | ExternalPeerRouter externalPeerRouter = |
| 197 | externalPeerRouterFromSubnet(srcSubnet, osRouterService, osNetworkService); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 198 | if (externalPeerRouter == null) { |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 199 | return; |
| 200 | } |
| 201 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 202 | populateSnatFlowRules(context.inPacket(), |
| 203 | srcInstPort, |
| 204 | TpPort.tpPort(patPort), |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 205 | externalGatewayIp, externalPeerRouter); |
| 206 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 207 | |
Ray Milkey | f0c4761 | 2017-09-28 11:29:38 -0700 | [diff] [blame] | 208 | packetOut(eth.duplicate(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 209 | packetIn.receivedFrom().deviceId(), |
| 210 | patPort, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 211 | externalGatewayIp, externalPeerRouter); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | private Subnet getSourceSubnet(InstancePort instance, IpAddress srcIp) { |
| 215 | Port osPort = osNetworkService.port(instance.portId()); |
| 216 | IP fixedIp = osPort.getFixedIps().stream() |
| 217 | .filter(ip -> IpAddress.valueOf(ip.getIpAddress()).equals(srcIp)) |
| 218 | .findAny().orElse(null); |
| 219 | if (fixedIp == null) { |
| 220 | return null; |
| 221 | } |
| 222 | return osNetworkService.subnet(fixedIp.getSubnetId()); |
| 223 | } |
| 224 | |
Jian Li | 5ecfd1a | 2018-12-10 11:41:03 +0900 | [diff] [blame^] | 225 | private void populateSnatFlowRules(InboundPacket packetIn, |
| 226 | InstancePort srcInstPort, |
| 227 | TpPort patPort, IpAddress externalIp, |
| 228 | ExternalPeerRouter externalPeerRouter) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 229 | Network osNet = osNetworkService.network(srcInstPort.networkId()); |
| 230 | if (osNet == null) { |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 231 | final String error = String.format("%s network %s not found", |
| 232 | ERR_PACKETIN, srcInstPort.networkId()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 233 | throw new IllegalStateException(error); |
| 234 | } |
| 235 | |
| 236 | setDownstreamRules(srcInstPort, |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 237 | osNet.getProviderSegID(), |
| 238 | osNet.getNetworkType(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 239 | externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 240 | externalPeerRouter, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 241 | patPort, |
| 242 | packetIn); |
| 243 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 244 | setUpstreamRules(osNet.getProviderSegID(), |
| 245 | osNet.getNetworkType(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 246 | externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 247 | externalPeerRouter, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 248 | patPort, |
| 249 | packetIn); |
| 250 | } |
| 251 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 252 | private void setDownstreamRules(InstancePort srcInstPort, String segmentId, |
| 253 | NetworkType networkType, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 254 | IpAddress externalIp, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 255 | ExternalPeerRouter externalPeerRouter, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 256 | TpPort patPort, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 257 | InboundPacket packetIn) { |
| 258 | IPv4 iPacket = (IPv4) packetIn.parsed().getPayload(); |
| 259 | IpAddress internalIp = IpAddress.valueOf(iPacket.getSourceAddress()); |
| 260 | |
| 261 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 262 | .matchEthType(Ethernet.TYPE_IPV4) |
| 263 | .matchIPProtocol(iPacket.getProtocol()) |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 264 | .matchIPDst(IpPrefix.valueOf(externalIp.getIp4Address(), VM_PREFIX)) |
| 265 | .matchIPSrc(IpPrefix.valueOf(iPacket.getDestinationAddress(), VM_PREFIX)); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 266 | |
| 267 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 268 | .setEthDst(packetIn.parsed().getSourceMAC()) |
| 269 | .setIpDst(internalIp); |
| 270 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 271 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 272 | sBuilder.matchVlanId(externalPeerRouter.vlanId()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 273 | tBuilder.popVlan(); |
| 274 | } |
| 275 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 276 | switch (networkType) { |
| 277 | case VXLAN: |
| 278 | tBuilder.setTunnelId(Long.parseLong(segmentId)); |
| 279 | break; |
| 280 | case VLAN: |
| 281 | tBuilder.pushVlan() |
Daniel Park | c64b4c6 | 2018-05-09 18:13:39 +0900 | [diff] [blame] | 282 | .setVlanId(VlanId.vlanId(segmentId)); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 283 | break; |
| 284 | default: |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 285 | final String error = String.format("%s %s", |
| 286 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 287 | throw new IllegalStateException(error); |
| 288 | } |
| 289 | |
| 290 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 291 | switch (iPacket.getProtocol()) { |
| 292 | case IPv4.PROTOCOL_TCP: |
| 293 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 294 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getDestinationPort())) |
| 295 | .matchTcpDst(patPort); |
| 296 | tBuilder.setTcpDst(TpPort.tpPort(tcpPacket.getSourcePort())); |
| 297 | break; |
| 298 | case IPv4.PROTOCOL_UDP: |
| 299 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 300 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getDestinationPort())) |
| 301 | .matchUdpDst(patPort); |
| 302 | tBuilder.setUdpDst(TpPort.tpPort(udpPacket.getSourcePort())); |
| 303 | break; |
| 304 | default: |
| 305 | break; |
| 306 | } |
| 307 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 308 | OpenstackNode srcNode = osNodeService.node(srcInstPort.deviceId()); |
| 309 | osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 310 | TrafficTreatment treatment = |
| 311 | getDownStreamTreatment(networkType, tBuilder, gNode, srcNode); |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 312 | osFlowRuleService.setRule( |
| 313 | appId, |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 314 | gNode.intgBridge(), |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 315 | sBuilder.build(), |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 316 | treatment, |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 317 | PRIORITY_SNAT_RULE, |
| 318 | GW_COMMON_TABLE, |
| 319 | true); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 320 | }); |
| 321 | } |
| 322 | |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 323 | private TrafficTreatment getDownStreamTreatment(NetworkType networkType, |
| 324 | TrafficTreatment.Builder tBuilder, |
| 325 | OpenstackNode gNode, |
| 326 | OpenstackNode srcNode) { |
| 327 | TrafficTreatment.Builder tmpBuilder = |
| 328 | DefaultTrafficTreatment.builder(tBuilder.build()); |
| 329 | switch (networkType) { |
| 330 | case VXLAN: |
| 331 | tmpBuilder.extension(RulePopulatorUtil.buildExtension( |
| 332 | deviceService, |
| 333 | gNode.intgBridge(), |
| 334 | srcNode.dataIp().getIp4Address()), gNode.intgBridge()) |
| 335 | .setOutput(gNode.tunnelPortNum()); |
| 336 | break; |
| 337 | case VLAN: |
| 338 | tmpBuilder.setOutput(gNode.vlanPortNum()); |
| 339 | break; |
| 340 | default: |
| 341 | final String error = String.format("%s %s", |
| 342 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
| 343 | throw new IllegalStateException(error); |
| 344 | } |
| 345 | |
| 346 | return tmpBuilder.build(); |
| 347 | } |
| 348 | |
Jian Li | 5ecfd1a | 2018-12-10 11:41:03 +0900 | [diff] [blame^] | 349 | private void setUpstreamRules(String segmentId, |
| 350 | NetworkType networkType, |
| 351 | IpAddress externalIp, |
| 352 | ExternalPeerRouter externalPeerRouter, |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 353 | TpPort patPort, |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 354 | InboundPacket packetIn) { |
| 355 | IPv4 iPacket = (IPv4) packetIn.parsed().getPayload(); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 356 | |
| 357 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 358 | .matchEthType(Ethernet.TYPE_IPV4) |
| 359 | .matchIPProtocol(iPacket.getProtocol()) |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 360 | .matchIPSrc(IpPrefix.valueOf(iPacket.getSourceAddress(), VM_PREFIX)) |
| 361 | .matchIPDst(IpPrefix.valueOf(iPacket.getDestinationAddress(), VM_PREFIX)); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 362 | |
| 363 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 364 | |
| 365 | switch (networkType) { |
| 366 | case VXLAN: |
| 367 | sBuilder.matchTunnelId(Long.parseLong(segmentId)); |
| 368 | break; |
| 369 | case VLAN: |
| 370 | sBuilder.matchVlanId(VlanId.vlanId(segmentId)); |
| 371 | tBuilder.popVlan(); |
| 372 | break; |
| 373 | default: |
Jian Li | 71670d1 | 2018-03-02 21:31:07 +0900 | [diff] [blame] | 374 | final String error = String.format("%s %s", |
| 375 | ERR_UNSUPPORTED_NET_TYPE, networkType.toString()); |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 376 | throw new IllegalStateException(error); |
| 377 | } |
| 378 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 379 | switch (iPacket.getProtocol()) { |
| 380 | case IPv4.PROTOCOL_TCP: |
| 381 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 382 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getSourcePort())) |
| 383 | .matchTcpDst(TpPort.tpPort(tcpPacket.getDestinationPort())); |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 384 | tBuilder.setTcpSrc(patPort).setEthDst(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 385 | break; |
| 386 | case IPv4.PROTOCOL_UDP: |
| 387 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 388 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getSourcePort())) |
| 389 | .matchUdpDst(TpPort.tpPort(udpPacket.getDestinationPort())); |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 390 | tBuilder.setUdpSrc(patPort).setEthDst(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 391 | break; |
| 392 | default: |
| 393 | log.debug("Unsupported IPv4 protocol {}"); |
| 394 | break; |
| 395 | } |
| 396 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 397 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 398 | tBuilder.pushVlan().setVlanId(externalPeerRouter.vlanId()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 399 | } |
| 400 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 401 | tBuilder.setIpSrc(externalIp); |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 402 | osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 403 | TrafficTreatment.Builder tmpBuilder = |
| 404 | DefaultTrafficTreatment.builder(tBuilder.build()); |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 405 | tmpBuilder.setOutput(gNode.uplinkPortNum()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 406 | |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 407 | osFlowRuleService.setRule( |
| 408 | appId, |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 409 | gNode.intgBridge(), |
sangho | dc37537 | 2017-06-08 10:41:30 +0900 | [diff] [blame] | 410 | sBuilder.build(), |
| 411 | tmpBuilder.build(), |
| 412 | PRIORITY_SNAT_RULE, |
| 413 | GW_COMMON_TABLE, |
| 414 | true); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 415 | }); |
| 416 | } |
| 417 | |
| 418 | private void packetOut(Ethernet ethPacketIn, DeviceId srcDevice, int patPort, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 419 | IpAddress externalIp, ExternalPeerRouter externalPeerRouter) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 420 | IPv4 iPacket = (IPv4) ethPacketIn.getPayload(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 421 | switch (iPacket.getProtocol()) { |
| 422 | case IPv4.PROTOCOL_TCP: |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 423 | iPacket.setPayload(buildPacketOutTcp(iPacket, patPort)); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 424 | break; |
| 425 | case IPv4.PROTOCOL_UDP: |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 426 | iPacket.setPayload(buildPacketOutUdp(iPacket, patPort)); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 427 | break; |
| 428 | default: |
| 429 | log.trace("Temporally, this method can process UDP and TCP protocol."); |
| 430 | return; |
| 431 | } |
| 432 | |
| 433 | iPacket.setSourceAddress(externalIp.toString()); |
| 434 | iPacket.resetChecksum(); |
| 435 | iPacket.setParent(ethPacketIn); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 436 | ethPacketIn.setSourceMACAddress(DEFAULT_GATEWAY_MAC); |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 437 | ethPacketIn.setDestinationMACAddress(externalPeerRouter.macAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 438 | ethPacketIn.setPayload(iPacket); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 439 | |
Jian Li | 5e2ad4a | 2018-07-16 13:40:53 +0900 | [diff] [blame] | 440 | if (!externalPeerRouter.vlanId().equals(VlanId.NONE)) { |
| 441 | ethPacketIn.setVlanID(externalPeerRouter.vlanId().toShort()); |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 442 | } |
| 443 | |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 444 | ethPacketIn.resetChecksum(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 445 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 446 | OpenstackNode srcNode = osNodeService.node(srcDevice); |
| 447 | if (srcNode == null) { |
| 448 | final String error = String.format("Cannot find openstack node for %s", |
| 449 | srcDevice); |
| 450 | throw new IllegalStateException(error); |
| 451 | } |
daniel park | ee8700b | 2017-05-11 15:50:03 +0900 | [diff] [blame] | 452 | |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 453 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 454 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 455 | packetService.emit(new DefaultOutboundPacket( |
| 456 | srcDevice, |
daniel park | 576969a | 2018-03-09 07:07:41 +0900 | [diff] [blame] | 457 | tBuilder.setOutput(srcNode.uplinkPortNum()).build(), |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 458 | ByteBuffer.wrap(ethPacketIn.serialize()))); |
| 459 | } |
| 460 | |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 461 | private TCP buildPacketOutTcp(IPv4 iPacket, int patPort) { |
| 462 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 463 | tcpPacket.setSourcePort(patPort); |
| 464 | tcpPacket.resetChecksum(); |
| 465 | tcpPacket.setParent(iPacket); |
| 466 | |
| 467 | return tcpPacket; |
| 468 | } |
| 469 | |
| 470 | private UDP buildPacketOutUdp(IPv4 iPacket, int patPort) { |
| 471 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 472 | udpPacket.setSourcePort(patPort); |
| 473 | udpPacket.resetChecksum(); |
| 474 | udpPacket.setParent(iPacket); |
| 475 | |
| 476 | return udpPacket; |
| 477 | } |
| 478 | |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 479 | private int getPortNum() { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 480 | if (unUsedPortNumSet.isEmpty()) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 481 | clearPortNumMap(); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 482 | } |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 483 | int portNum = findUnusedPortNum(); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 484 | if (portNum != 0) { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 485 | unUsedPortNumSet.remove(portNum); |
| 486 | allocatedPortNumMap.put(portNum, System.currentTimeMillis()); |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 487 | } |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 488 | return portNum; |
| 489 | } |
| 490 | |
| 491 | private int findUnusedPortNum() { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 492 | return unUsedPortNumSet.stream().findAny().orElse(0); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 493 | } |
| 494 | |
| 495 | private void clearPortNumMap() { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 496 | allocatedPortNumMap.entrySet().forEach(e -> { |
Hyunsun Moon | 0e058f2 | 2017-04-19 17:00:52 +0900 | [diff] [blame] | 497 | if (System.currentTimeMillis() - e.getValue().value() > TIME_OUT_SNAT_PORT_MS) { |
daniel park | 0bc7fdb | 2017-03-13 14:20:08 +0900 | [diff] [blame] | 498 | allocatedPortNumMap.remove(e.getKey()); |
| 499 | unUsedPortNumSet.add(e.getKey()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 500 | } |
| 501 | }); |
| 502 | } |
| 503 | |
| 504 | private class InternalPacketProcessor implements PacketProcessor { |
| 505 | |
| 506 | @Override |
| 507 | public void process(PacketContext context) { |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 508 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 509 | if (context.isHandled()) { |
| 510 | return; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 511 | } |
| 512 | |
| 513 | InboundPacket pkt = context.inPacket(); |
| 514 | Ethernet eth = pkt.parsed(); |
| 515 | if (eth == null || eth.getEtherType() == Ethernet.TYPE_ARP) { |
| 516 | return; |
| 517 | } |
| 518 | |
| 519 | IPv4 iPacket = (IPv4) eth.getPayload(); |
| 520 | switch (iPacket.getProtocol()) { |
| 521 | case IPv4.PROTOCOL_ICMP: |
| 522 | break; |
| 523 | case IPv4.PROTOCOL_UDP: |
| 524 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 525 | if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT && |
| 526 | udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) { |
Jian Li | 6a47fd0 | 2018-11-27 21:51:03 +0900 | [diff] [blame] | 527 | break; // don't process DHCP |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 528 | } |
| 529 | default: |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 530 | eventExecutor.execute(() -> { |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 531 | if (!isRelevantHelper(context)) { |
| 532 | return; |
| 533 | } |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 534 | processSnatPacket(context, eth); |
| 535 | }); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 536 | break; |
| 537 | } |
| 538 | } |
Jian Li | 34220ea | 2018-11-14 01:30:24 +0900 | [diff] [blame] | 539 | |
| 540 | private boolean isRelevantHelper(PacketContext context) { |
| 541 | Set<DeviceId> gateways = osNodeService.completeNodes(GATEWAY) |
| 542 | .stream().map(OpenstackNode::intgBridge) |
| 543 | .collect(Collectors.toSet()); |
| 544 | |
| 545 | return gateways.contains(context.inPacket().receivedFrom().deviceId()); |
| 546 | } |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 547 | } |
| 548 | } |