sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
sangho | 0c2a3da | 2016-02-16 13:39:07 +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 | */ |
Hyunsun Moon | 0540087 | 2017-02-07 17:11:25 +0900 | [diff] [blame^] | 16 | package org.onosproject.openstacknetworking.impl; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 17 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 23 | import org.onlab.packet.Ethernet; |
| 24 | import org.onlab.packet.IPv4; |
Kyuhwi Choi | e2b37e3 | 2016-02-05 14:04:14 +0900 | [diff] [blame] | 25 | import org.onlab.packet.Ip4Address; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 26 | import org.onlab.packet.IpAddress; |
| 27 | import org.onlab.packet.IpPrefix; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 28 | import org.onlab.packet.MacAddress; |
| 29 | import org.onlab.packet.TCP; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 30 | import org.onlab.packet.TpPort; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 31 | import org.onlab.packet.UDP; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 32 | import org.onlab.util.KryoNamespace; |
| 33 | import org.onlab.util.Tools; |
| 34 | import org.onosproject.core.ApplicationId; |
| 35 | import org.onosproject.core.CoreService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 36 | import org.onosproject.net.DeviceId; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 37 | import org.onosproject.net.Host; |
| 38 | import org.onosproject.net.device.DeviceService; |
| 39 | import org.onosproject.net.flow.DefaultTrafficSelector; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 40 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 41 | import org.onosproject.net.flow.TrafficSelector; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 42 | import org.onosproject.net.flow.TrafficTreatment; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 43 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 44 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 45 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 46 | import org.onosproject.net.host.HostService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 47 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 48 | import org.onosproject.net.packet.InboundPacket; |
| 49 | import org.onosproject.net.packet.PacketContext; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 50 | import org.onosproject.net.packet.PacketProcessor; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 51 | import org.onosproject.net.packet.PacketService; |
sangho | 93447f1 | 2016-02-24 00:33:22 +0900 | [diff] [blame] | 52 | import org.onosproject.openstackinterface.OpenstackInterfaceService; |
sangho | 93447f1 | 2016-02-24 00:33:22 +0900 | [diff] [blame] | 53 | import org.onosproject.openstackinterface.OpenstackPort; |
| 54 | import org.onosproject.openstackinterface.OpenstackRouter; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 55 | import org.onosproject.openstacknode.OpenstackNodeService; |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 56 | import org.onosproject.scalablegateway.api.ScalableGatewayService; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 57 | import org.onosproject.store.serializers.KryoNamespaces; |
| 58 | import org.onosproject.store.service.ConsistentMap; |
| 59 | import org.onosproject.store.service.Serializer; |
| 60 | import org.onosproject.store.service.StorageService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 61 | import org.slf4j.Logger; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 62 | |
| 63 | import java.nio.ByteBuffer; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 64 | import java.util.Objects; |
| 65 | import java.util.Optional; |
| 66 | import java.util.concurrent.ExecutorService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 67 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 68 | import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor; |
| 69 | import static org.onlab.util.Tools.groupedThreads; |
Hyunsun Moon | 0540087 | 2017-02-07 17:11:25 +0900 | [diff] [blame^] | 70 | import static org.onosproject.openstacknetworking.api.Constants.*; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 71 | import static org.slf4j.LoggerFactory.getLogger; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 72 | |
| 73 | /** |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 74 | * Handle NAT packet processing for managing flow rules in openstack nodes. |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 75 | */ |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 76 | @Component(immediate = true) |
| 77 | public class OpenstackPnatHandler { |
| 78 | private final Logger log = getLogger(getClass()); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 79 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 80 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 81 | protected CoreService coreService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 82 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 83 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 84 | protected PacketService packetService; |
Kyuhwi Choi | e2b37e3 | 2016-02-05 14:04:14 +0900 | [diff] [blame] | 85 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 86 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 87 | protected HostService hostService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 88 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 89 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 90 | protected StorageService storageService; |
| 91 | |
| 92 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 93 | protected FlowObjectiveService flowObjectiveService; |
| 94 | |
| 95 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 96 | protected DeviceService deviceService; |
| 97 | |
| 98 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 99 | protected OpenstackInterfaceService openstackService; |
| 100 | |
| 101 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 102 | protected OpenstackNodeService nodeService; |
| 103 | |
| 104 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 105 | protected ScalableGatewayService gatewayService; |
| 106 | |
| 107 | private static final KryoNamespace.Builder NUMBER_SERIALIZER = KryoNamespace.newBuilder() |
| 108 | .register(KryoNamespaces.API); |
| 109 | |
| 110 | private static final int PNAT_PORT_EXPIRE_TIME = 1200 * 1000; |
| 111 | private static final int TP_PORT_MINIMUM_NUM = 1024; |
| 112 | private static final int TP_PORT_MAXIMUM_NUM = 65535; |
| 113 | |
| 114 | private final ExecutorService eventExecutor = newSingleThreadScheduledExecutor( |
| 115 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 116 | private final InternalPacketProcessor packetProcessor = new InternalPacketProcessor(); |
| 117 | |
| 118 | private ConsistentMap<Integer, String> tpPortNumMap; |
| 119 | private ApplicationId appId; |
| 120 | |
| 121 | @Activate |
| 122 | protected void activate() { |
| 123 | appId = coreService.registerApplication(ROUTING_APP_ID); |
| 124 | tpPortNumMap = storageService.<Integer, String>consistentMapBuilder() |
| 125 | .withSerializer(Serializer.using(NUMBER_SERIALIZER.build())) |
| 126 | .withName("openstackrouting-tpportnum") |
| 127 | .withApplicationId(appId) |
| 128 | .build(); |
| 129 | |
| 130 | packetService.addProcessor(packetProcessor, PacketProcessor.director(1)); |
| 131 | log.info("Started"); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 132 | } |
| 133 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 134 | @Deactivate |
| 135 | protected void deactivate() { |
| 136 | packetService.removeProcessor(packetProcessor); |
| 137 | log.info("Stopped"); |
| 138 | } |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 139 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 140 | private void processPnatPacket(PacketContext context, Ethernet ethernet) { |
| 141 | IPv4 iPacket = (IPv4) ethernet.getPayload(); |
| 142 | InboundPacket inboundPacket = context.inPacket(); |
| 143 | |
| 144 | int srcPort = getPortNum(ethernet.getSourceMAC(), iPacket.getDestinationAddress()); |
| 145 | OpenstackPort osPort = getOpenstackPort(ethernet.getSourceMAC()); |
| 146 | if (osPort == null) { |
| 147 | return; |
| 148 | } |
| 149 | Ip4Address externalGatewayIp = getExternalGatewayIp(osPort); |
| 150 | if (externalGatewayIp == null) { |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 151 | return; |
| 152 | } |
| 153 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 154 | populatePnatFlowRules(context.inPacket(), |
| 155 | osPort, |
| 156 | TpPort.tpPort(srcPort), |
| 157 | externalGatewayIp); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 158 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 159 | packetOut((Ethernet) ethernet.clone(), |
| 160 | inboundPacket.receivedFrom().deviceId(), |
| 161 | srcPort, |
| 162 | externalGatewayIp); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 163 | } |
| 164 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 165 | private void packetOut(Ethernet ethernet, DeviceId deviceId, int portNum, Ip4Address externalIp) { |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 166 | IPv4 iPacket = (IPv4) ethernet.getPayload(); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 167 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 168 | |
| 169 | switch (iPacket.getProtocol()) { |
| 170 | case IPv4.PROTOCOL_TCP: |
| 171 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 172 | tcpPacket.setSourcePort(portNum); |
| 173 | tcpPacket.resetChecksum(); |
| 174 | tcpPacket.setParent(iPacket); |
| 175 | iPacket.setPayload(tcpPacket); |
| 176 | break; |
| 177 | case IPv4.PROTOCOL_UDP: |
| 178 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 179 | udpPacket.setSourcePort(portNum); |
| 180 | udpPacket.resetChecksum(); |
| 181 | udpPacket.setParent(iPacket); |
| 182 | iPacket.setPayload(udpPacket); |
| 183 | break; |
| 184 | default: |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 185 | log.trace("Temporally, this method can process UDP and TCP protocol."); |
Kyuhwi Choi | e2b37e3 | 2016-02-05 14:04:14 +0900 | [diff] [blame] | 186 | return; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 187 | } |
| 188 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 189 | iPacket.setSourceAddress(externalIp.toString()); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 190 | iPacket.resetChecksum(); |
Kyuhwi Choi | e2b37e3 | 2016-02-05 14:04:14 +0900 | [diff] [blame] | 191 | iPacket.setParent(ethernet); |
sangho | 5c8f048 | 2016-08-04 23:50:52 +0900 | [diff] [blame] | 192 | ethernet.setDestinationMACAddress(DEFAULT_EXTERNAL_ROUTER_MAC); |
Kyuhwi Choi | ee9e371 | 2016-02-22 22:49:36 +0900 | [diff] [blame] | 193 | ethernet.setPayload(iPacket); |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 194 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 195 | treatment.setOutput(gatewayService.getUplinkPort(deviceId)); |
| 196 | ethernet.resetChecksum(); |
| 197 | packetService.emit(new DefaultOutboundPacket( |
| 198 | deviceId, |
| 199 | treatment.build(), |
| 200 | ByteBuffer.wrap(ethernet.serialize()))); |
| 201 | } |
| 202 | |
| 203 | private int getPortNum(MacAddress sourceMac, int destinationAddress) { |
| 204 | int portNum = findUnusedPortNum(); |
| 205 | if (portNum == 0) { |
| 206 | clearPortNumMap(); |
| 207 | portNum = findUnusedPortNum(); |
| 208 | } |
| 209 | tpPortNumMap.put(portNum, sourceMac.toString().concat(":").concat(String.valueOf(destinationAddress))); |
| 210 | return portNum; |
| 211 | } |
| 212 | |
| 213 | private int findUnusedPortNum() { |
| 214 | for (int i = TP_PORT_MINIMUM_NUM; i < TP_PORT_MAXIMUM_NUM; i++) { |
| 215 | if (!tpPortNumMap.containsKey(i)) { |
| 216 | return i; |
| 217 | } |
| 218 | } |
| 219 | return 0; |
| 220 | } |
| 221 | |
| 222 | private void clearPortNumMap() { |
| 223 | tpPortNumMap.entrySet().forEach(e -> { |
| 224 | if (System.currentTimeMillis() - e.getValue().creationTime() > PNAT_PORT_EXPIRE_TIME) { |
| 225 | tpPortNumMap.remove(e.getKey()); |
| 226 | } |
| 227 | }); |
| 228 | } |
| 229 | |
| 230 | // TODO there can be multiple routers connected to a particular openstack port |
| 231 | // TODO cache router information |
| 232 | private Ip4Address getExternalGatewayIp(OpenstackPort osPort) { |
| 233 | Optional<OpenstackPort> routerPort = openstackService.ports().stream() |
| 234 | .filter(p -> p.deviceOwner().equals(DEVICE_OWNER_ROUTER_INTERFACE)) |
| 235 | .filter(p -> checkSameSubnet(p, osPort)) |
| 236 | .findAny(); |
| 237 | if (!routerPort.isPresent()) { |
| 238 | log.warn("No router is connected to network {}", osPort.networkId()); |
| 239 | return null; |
| 240 | } |
| 241 | |
| 242 | OpenstackRouter osRouter = openstackService.router(routerPort.get().deviceId()); |
| 243 | if (osRouter == null) { |
| 244 | log.warn("Failed to get OpenStack router {}", |
| 245 | routerPort.get().deviceId()); |
| 246 | return null; |
| 247 | } |
| 248 | |
| 249 | return osRouter.gatewayExternalInfo().externalFixedIps().values() |
| 250 | .stream().findAny().orElse(null); |
| 251 | } |
| 252 | |
| 253 | private OpenstackPort getOpenstackPort(MacAddress srcMac) { |
| 254 | Optional<Host> host = hostService.getHostsByMac(srcMac).stream() |
| 255 | .filter(h -> h.annotations().value(PORT_ID) != null) |
| 256 | .findAny(); |
| 257 | if (!host.isPresent()) { |
| 258 | log.warn("Failed to find a host with MAC:{}", srcMac); |
| 259 | return null; |
| 260 | } |
| 261 | return openstackService.port(host.get().annotations().value(PORT_ID)); |
| 262 | } |
| 263 | |
| 264 | private boolean checkSameSubnet(OpenstackPort osPortA, OpenstackPort osPortB) { |
| 265 | return osPortA.fixedIps().keySet().stream() |
| 266 | .anyMatch(subnetId -> osPortB.fixedIps().keySet().contains(subnetId)); |
| 267 | } |
| 268 | |
| 269 | private void populatePnatFlowRules(InboundPacket inboundPacket, |
| 270 | OpenstackPort osPort, |
| 271 | TpPort patPort, |
| 272 | Ip4Address externalIp) { |
| 273 | long vni = getVni(osPort.networkId()); |
| 274 | populatePnatIncomingFlowRules(vni, externalIp, patPort, inboundPacket); |
| 275 | populatePnatOutgoingFlowRules(vni, externalIp, patPort, inboundPacket); |
| 276 | } |
| 277 | |
| 278 | private long getVni(String netId) { |
| 279 | // TODO remove this and use host vxlan annotation if applicable |
| 280 | return Long.parseLong(openstackService.network(netId).segmentId()); |
| 281 | } |
| 282 | |
| 283 | private void populatePnatOutgoingFlowRules(long vni, Ip4Address externalIp, TpPort patPort, |
| 284 | InboundPacket inboundPacket) { |
| 285 | IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| 286 | |
| 287 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 288 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 289 | .matchIPProtocol(iPacket.getProtocol()) |
| 290 | .matchTunnelId(vni) |
| 291 | .matchIPSrc(IpPrefix.valueOf(iPacket.getSourceAddress(), 32)) |
| 292 | .matchIPDst(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 293 | |
| 294 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 295 | switch (iPacket.getProtocol()) { |
| 296 | case IPv4.PROTOCOL_TCP: |
| 297 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 298 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getSourcePort())) |
| 299 | .matchTcpDst(TpPort.tpPort(tcpPacket.getDestinationPort())); |
| 300 | tBuilder.setTcpSrc(patPort) |
| 301 | .setEthDst(DEFAULT_EXTERNAL_ROUTER_MAC); |
| 302 | break; |
| 303 | case IPv4.PROTOCOL_UDP: |
| 304 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 305 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getSourcePort())) |
| 306 | .matchUdpDst(TpPort.tpPort(udpPacket.getDestinationPort())); |
| 307 | tBuilder.setUdpSrc(patPort) |
| 308 | .setEthDst(DEFAULT_EXTERNAL_ROUTER_MAC); |
| 309 | |
| 310 | break; |
| 311 | default: |
| 312 | log.debug("Unsupported IPv4 protocol {}"); |
| 313 | break; |
| 314 | } |
| 315 | |
| 316 | tBuilder.setIpSrc(externalIp); |
Sho SHIMIZU | 8ebb04a | 2016-10-06 15:58:29 -0700 | [diff] [blame] | 317 | gatewayService.getGatewayNodes().forEach(gateway -> { |
sangho | 4d28773 | 2016-08-04 23:24:13 +0900 | [diff] [blame] | 318 | TrafficTreatment.Builder tmpBuilder = DefaultTrafficTreatment.builder(tBuilder.build()); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 319 | tmpBuilder.setOutput(gatewayService.getUplinkPort(gateway.getGatewayDeviceId())); |
| 320 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 321 | .withSelector(sBuilder.build()) |
| 322 | .withTreatment(tmpBuilder.build()) |
| 323 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 324 | .withPriority(PNAT_RULE_PRIORITY) |
| 325 | .makeTemporary(PNAT_TIMEOUT) |
| 326 | .fromApp(appId) |
| 327 | .add(); |
| 328 | |
| 329 | flowObjectiveService.forward(gateway.getGatewayDeviceId(), fo); |
| 330 | }); |
| 331 | } |
| 332 | |
| 333 | private void populatePnatIncomingFlowRules(long vni, Ip4Address externalIp, TpPort patPort, |
| 334 | InboundPacket inboundPacket) { |
| 335 | IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| 336 | IpAddress internalIp = IpAddress.valueOf(iPacket.getSourceAddress()); |
| 337 | |
| 338 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 339 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 340 | .matchIPProtocol(iPacket.getProtocol()) |
| 341 | .matchIPDst(IpPrefix.valueOf(externalIp, 32)) |
| 342 | .matchIPSrc(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 343 | |
| 344 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 345 | tBuilder.setTunnelId(vni) |
| 346 | .setEthDst(inboundPacket.parsed().getSourceMAC()) |
| 347 | .setIpDst(internalIp); |
| 348 | |
| 349 | switch (iPacket.getProtocol()) { |
| 350 | case IPv4.PROTOCOL_TCP: |
| 351 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 352 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getDestinationPort())) |
| 353 | .matchTcpDst(patPort); |
| 354 | tBuilder.setTcpDst(TpPort.tpPort(tcpPacket.getSourcePort())); |
| 355 | break; |
| 356 | case IPv4.PROTOCOL_UDP: |
| 357 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 358 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getDestinationPort())) |
| 359 | .matchUdpDst(patPort); |
| 360 | tBuilder.setUdpDst(TpPort.tpPort(udpPacket.getSourcePort())); |
| 361 | break; |
| 362 | default: |
| 363 | break; |
| 364 | } |
| 365 | |
| 366 | Optional<Host> srcVm = Tools.stream(hostService.getHostsByIp(internalIp)) |
| 367 | .filter(host -> Objects.equals( |
| 368 | host.annotations().value(VXLAN_ID), |
| 369 | String.valueOf(vni))) |
| 370 | .findFirst(); |
| 371 | if (!srcVm.isPresent()) { |
| 372 | log.warn("Failed to find source VM with IP {}", internalIp); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 373 | return; |
| 374 | } |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 375 | |
Sho SHIMIZU | 8ebb04a | 2016-10-06 15:58:29 -0700 | [diff] [blame] | 376 | gatewayService.getGatewayDeviceIds().forEach(deviceId -> { |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 377 | DeviceId srcDeviceId = srcVm.get().location().deviceId(); |
sangho | 4d28773 | 2016-08-04 23:24:13 +0900 | [diff] [blame] | 378 | TrafficTreatment.Builder tmpBuilder = DefaultTrafficTreatment.builder(tBuilder.build()); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 379 | tmpBuilder.extension(RulePopulatorUtil.buildExtension( |
| 380 | deviceService, |
| 381 | deviceId, |
| 382 | nodeService.dataIp(srcDeviceId).get().getIp4Address()), deviceId) |
| 383 | .setOutput(nodeService.tunnelPort(deviceId).get()); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 384 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 385 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 386 | .withSelector(sBuilder.build()) |
| 387 | .withTreatment(tmpBuilder.build()) |
| 388 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 389 | .withPriority(PNAT_RULE_PRIORITY) |
| 390 | .makeTemporary(PNAT_TIMEOUT) |
| 391 | .fromApp(appId) |
| 392 | .add(); |
| 393 | |
| 394 | flowObjectiveService.forward(deviceId, fo); |
| 395 | }); |
| 396 | } |
| 397 | |
| 398 | private class InternalPacketProcessor implements PacketProcessor { |
| 399 | |
| 400 | @Override |
| 401 | public void process(PacketContext context) { |
| 402 | if (context.isHandled()) { |
| 403 | return; |
| 404 | } else if (!gatewayService.getGatewayDeviceIds().contains( |
| 405 | context.inPacket().receivedFrom().deviceId())) { |
| 406 | // return if the packet is not from gateway nodes |
| 407 | return; |
| 408 | } |
| 409 | |
| 410 | InboundPacket pkt = context.inPacket(); |
| 411 | Ethernet ethernet = pkt.parsed(); |
| 412 | if (ethernet == null || ethernet.getEtherType() == Ethernet.TYPE_ARP) { |
| 413 | return; |
| 414 | } |
| 415 | |
| 416 | IPv4 iPacket = (IPv4) ethernet.getPayload(); |
| 417 | switch (iPacket.getProtocol()) { |
| 418 | case IPv4.PROTOCOL_ICMP: |
| 419 | break; |
| 420 | case IPv4.PROTOCOL_UDP: |
| 421 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 422 | if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT && |
| 423 | udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) { |
| 424 | // don't process DHCP |
| 425 | break; |
| 426 | } |
| 427 | default: |
| 428 | eventExecutor.execute(() -> processPnatPacket(context, ethernet)); |
| 429 | break; |
| 430 | } |
| 431 | } |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 432 | } |
Sho SHIMIZU | 8ebb04a | 2016-10-06 15:58:29 -0700 | [diff] [blame] | 433 | } |