sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 Open Networking Laboratory |
| 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.routing; |
| 17 | |
| 18 | import org.onlab.packet.Ethernet; |
| 19 | import org.onlab.packet.IPv4; |
| 20 | import org.onlab.packet.Ip4Address; |
| 21 | import org.onlab.packet.IpAddress; |
| 22 | import org.onlab.packet.IpPrefix; |
| 23 | import org.onlab.packet.MacAddress; |
| 24 | import org.onlab.packet.TCP; |
| 25 | import org.onlab.packet.TpPort; |
| 26 | import org.onlab.packet.UDP; |
| 27 | import org.onosproject.core.ApplicationId; |
| 28 | import org.onosproject.net.Device; |
| 29 | import org.onosproject.net.DeviceId; |
| 30 | import org.onosproject.net.Port; |
| 31 | import org.onosproject.net.PortNumber; |
| 32 | import org.onosproject.net.behaviour.ExtensionTreatmentResolver; |
| 33 | import org.onosproject.net.device.DeviceService; |
| 34 | import org.onosproject.net.driver.DefaultDriverData; |
| 35 | import org.onosproject.net.driver.DefaultDriverHandler; |
| 36 | import org.onosproject.net.driver.Driver; |
| 37 | import org.onosproject.net.driver.DriverHandler; |
| 38 | import org.onosproject.net.driver.DriverService; |
| 39 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 40 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 41 | import org.onosproject.net.flow.TrafficSelector; |
| 42 | import org.onosproject.net.flow.TrafficTreatment; |
| 43 | import org.onosproject.net.flow.instructions.ExtensionPropertyException; |
| 44 | import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| 45 | import org.onosproject.net.flow.instructions.ExtensionTreatmentType; |
| 46 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 47 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 48 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 49 | import org.onosproject.net.packet.InboundPacket; |
| 50 | import org.onosproject.openstacknetworking.OpenstackNetworkingService; |
| 51 | import org.onosproject.openstacknetworking.OpenstackPort; |
| 52 | import org.onosproject.openstacknetworking.OpenstackRouter; |
| 53 | import org.onosproject.openstacknetworking.OpenstackRouterInterface; |
| 54 | import org.slf4j.Logger; |
| 55 | import org.slf4j.LoggerFactory; |
| 56 | |
| 57 | import java.util.stream.StreamSupport; |
| 58 | |
| 59 | import static com.google.common.base.Preconditions.checkNotNull; |
| 60 | |
| 61 | /** |
| 62 | * Populates Routing Flow Rules. |
| 63 | */ |
| 64 | public class OpenstackRoutingRulePopulator { |
| 65 | |
| 66 | private static Logger log = LoggerFactory |
| 67 | .getLogger(OpenstackRoutingRulePopulator.class); |
| 68 | private ApplicationId appId; |
| 69 | private FlowObjectiveService flowObjectiveService; |
| 70 | private OpenstackNetworkingService openstackService; |
| 71 | private DeviceService deviceService; |
| 72 | private DriverService driverService; |
| 73 | |
| 74 | public static final String PORTNAME_PREFIX_VM = "tap"; |
| 75 | public static final String PORTNAME_PREFIX_ROUTER = "qr"; |
| 76 | public static final String PORTNAME_PREFIX_TUNNEL = "vxlan"; |
| 77 | public static final String PORTNAME = "portName"; |
| 78 | |
| 79 | private static final int ROUTING_RULE_PRIORITY = 25000; |
| 80 | private static final int PNAT_RULE_PRIORITY = 24000; |
| 81 | private static final int PNAT_TIMEOUT = 120; |
| 82 | private static final MacAddress GATEWAYMAC = MacAddress.valueOf("1f:1f:1f:1f:1f:1f"); |
| 83 | |
| 84 | private InboundPacket inboundPacket; |
| 85 | private OpenstackPort openstackPort; |
| 86 | private int portNum; |
| 87 | private MacAddress externalInterface; |
| 88 | private MacAddress externalRouter; |
| 89 | private OpenstackRouter router; |
| 90 | private OpenstackRouterInterface routerInterface; |
| 91 | |
| 92 | // TODO: This will be replaced to get the information from openstackswitchingservice. |
| 93 | private static final String EXTERNAL_INTERFACE_NAME = "eth3"; |
| 94 | |
| 95 | public OpenstackRoutingRulePopulator(ApplicationId appId, OpenstackNetworkingService openstackService, |
| 96 | FlowObjectiveService flowObjectiveService, |
| 97 | DeviceService deviceService, DriverService driverService) { |
| 98 | this.appId = appId; |
| 99 | this.flowObjectiveService = flowObjectiveService; |
| 100 | this.openstackService = openstackService; |
| 101 | this.deviceService = deviceService; |
| 102 | this.driverService = driverService; |
| 103 | } |
| 104 | |
| 105 | public void populatePnatFlowRules(InboundPacket inboundPacket, OpenstackPort openstackPort, int portNum, |
| 106 | MacAddress externalInterfaceMacAddress, MacAddress externalRouterMacAddress) { |
| 107 | this.inboundPacket = inboundPacket; |
| 108 | this.openstackPort = openstackPort; |
| 109 | this.portNum = portNum; |
| 110 | this.externalInterface = externalInterfaceMacAddress; |
| 111 | this.externalRouter = externalRouterMacAddress; |
| 112 | |
| 113 | long vni = getVni(openstackPort); |
| 114 | |
| 115 | populatePnatIncomingFlowRules(vni); |
| 116 | populatePnatOutgoingFlowRules(vni); |
| 117 | } |
| 118 | |
| 119 | private void populatePnatOutgoingFlowRules(long vni) { |
| 120 | IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| 121 | |
| 122 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 123 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 124 | .matchIPProtocol(iPacket.getProtocol()) |
| 125 | .matchTunnelId(vni) |
| 126 | .matchIPSrc(IpPrefix.valueOf(iPacket.getSourceAddress(), 32)) |
| 127 | .matchIPDst(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 128 | |
| 129 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 130 | tBuilder.setEthSrc(externalInterface) |
| 131 | .setEthDst(externalRouter); |
| 132 | |
| 133 | switch (iPacket.getProtocol()) { |
| 134 | case IPv4.PROTOCOL_TCP: |
| 135 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 136 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getSourcePort())) |
| 137 | .matchTcpDst(TpPort.tpPort(tcpPacket.getDestinationPort())); |
| 138 | tBuilder.setTcpDst(TpPort.tpPort(portNum)); |
| 139 | break; |
| 140 | case IPv4.PROTOCOL_UDP: |
| 141 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 142 | sBuilder.matchUdpDst(TpPort.tpPort(udpPacket.getSourcePort())) |
| 143 | .matchUdpDst(TpPort.tpPort(udpPacket.getDestinationPort())); |
| 144 | tBuilder.setUdpDst(TpPort.tpPort(portNum)); |
| 145 | break; |
| 146 | default: |
| 147 | break; |
| 148 | } |
| 149 | |
| 150 | Port port = getPortNumOfExternalInterface(); |
| 151 | checkNotNull(port, "Port can not be null"); |
| 152 | tBuilder.setOutput(port.number()); |
| 153 | |
| 154 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 155 | .withSelector(sBuilder.build()) |
| 156 | .withTreatment(tBuilder.build()) |
| 157 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 158 | .withPriority(PNAT_RULE_PRIORITY) |
| 159 | .makeTemporary(PNAT_TIMEOUT) |
| 160 | .fromApp(appId) |
| 161 | .add(); |
| 162 | |
| 163 | flowObjectiveService.forward(inboundPacket.receivedFrom().deviceId(), fo); |
| 164 | } |
| 165 | |
| 166 | private Port getPortNumOfExternalInterface() { |
| 167 | return deviceService.getPorts(inboundPacket.receivedFrom().deviceId()).stream() |
| 168 | .filter(p -> p.annotations().value("portName").equals(EXTERNAL_INTERFACE_NAME)) |
| 169 | .findAny().orElse(null); |
| 170 | } |
| 171 | |
| 172 | |
| 173 | private void populatePnatIncomingFlowRules(long vni) { |
| 174 | IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| 175 | DeviceId deviceId = inboundPacket.receivedFrom().deviceId(); |
| 176 | |
| 177 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 178 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 179 | .matchIPProtocol(iPacket.getProtocol()) |
| 180 | .matchIPSrc(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| 181 | |
| 182 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 183 | tBuilder.setTunnelId(vni) |
| 184 | .setIpDst(IpAddress.valueOf(iPacket.getSourceAddress())); |
| 185 | |
| 186 | switch (iPacket.getProtocol()) { |
| 187 | case IPv4.PROTOCOL_TCP: |
| 188 | TCP tcpPacket = (TCP) iPacket.getPayload(); |
| 189 | sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getDestinationPort())) |
| 190 | .matchTcpDst(TpPort.tpPort(portNum)); |
| 191 | tBuilder.setTcpDst(TpPort.tpPort(tcpPacket.getSourcePort())); |
| 192 | break; |
| 193 | case IPv4.PROTOCOL_UDP: |
| 194 | UDP udpPacket = (UDP) iPacket.getPayload(); |
| 195 | sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getDestinationPort())) |
| 196 | .matchUdpDst(TpPort.tpPort(portNum)); |
| 197 | tBuilder.setUdpDst(TpPort.tpPort(udpPacket.getSourcePort())); |
| 198 | break; |
| 199 | default: |
| 200 | break; |
| 201 | } |
| 202 | |
| 203 | tBuilder.extension(buildNiciraExtenstion(deviceId, Ip4Address.valueOf(iPacket.getSourceAddress())), deviceId) |
| 204 | .setOutput(getTunnelPort(deviceId)); |
| 205 | |
| 206 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 207 | .withSelector(sBuilder.build()) |
| 208 | .withTreatment(tBuilder.build()) |
| 209 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 210 | .withPriority(PNAT_RULE_PRIORITY) |
| 211 | .makeTemporary(PNAT_TIMEOUT) |
| 212 | .fromApp(appId) |
| 213 | .add(); |
| 214 | |
| 215 | flowObjectiveService.forward(inboundPacket.receivedFrom().deviceId(), fo); |
| 216 | } |
| 217 | |
| 218 | private ExtensionTreatment buildNiciraExtenstion(DeviceId id, Ip4Address hostIp) { |
| 219 | Driver driver = driverService.getDriver(id); |
| 220 | DriverHandler driverHandler = new DefaultDriverHandler(new DefaultDriverData(driver, id)); |
| 221 | ExtensionTreatmentResolver resolver = driverHandler.behaviour(ExtensionTreatmentResolver.class); |
| 222 | |
| 223 | ExtensionTreatment extensionInstruction = |
| 224 | resolver.getExtensionInstruction( |
| 225 | ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST.type()); |
| 226 | |
| 227 | try { |
| 228 | extensionInstruction.setPropertyValue("tunnelDst", hostIp); |
| 229 | } catch (ExtensionPropertyException e) { |
| 230 | log.error("Error setting Nicira extension setting {}", e); |
| 231 | } |
| 232 | |
| 233 | return extensionInstruction; |
| 234 | } |
| 235 | |
| 236 | private PortNumber getTunnelPort(DeviceId deviceId) { |
| 237 | Port port = deviceService.getPorts(deviceId).stream() |
| 238 | .filter(p -> p.annotations().value("portName").equals(PORTNAME_PREFIX_TUNNEL)) |
| 239 | .findAny().orElse(null); |
| 240 | |
| 241 | if (port == null) { |
| 242 | log.error("No TunnelPort was created."); |
| 243 | return null; |
| 244 | } |
| 245 | return port.number(); |
| 246 | |
| 247 | } |
| 248 | |
| 249 | public void populateExternalRules(long vni, OpenstackRouter router, |
| 250 | OpenstackRouterInterface routerInterface) { |
| 251 | this.router = router; |
| 252 | this.routerInterface = routerInterface; |
| 253 | |
| 254 | // 1. computeNode to gateway |
| 255 | populateComputeNodeRules(vni); |
| 256 | // 2. gatewayNode to controller |
| 257 | populateRuleGatewaytoController(vni); |
| 258 | } |
| 259 | |
| 260 | private void populateRuleGatewaytoController(long vni) { |
| 261 | Device gatewayDevice = getGatewayNode(); |
| 262 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 263 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 264 | |
| 265 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 266 | .matchTunnelId(vni) |
| 267 | .matchEthDst(GATEWAYMAC); |
| 268 | tBuilder.setOutput(PortNumber.CONTROLLER); |
| 269 | |
| 270 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 271 | .withSelector(sBuilder.build()) |
| 272 | .withTreatment(tBuilder.build()) |
| 273 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 274 | .withPriority(ROUTING_RULE_PRIORITY) |
| 275 | .fromApp(appId) |
| 276 | .add(); |
| 277 | |
| 278 | flowObjectiveService.forward(gatewayDevice.id(), fo); |
| 279 | } |
| 280 | |
| 281 | private void populateComputeNodeRules(long vni) { |
| 282 | Device gatewayDevice = getGatewayNode(); |
| 283 | |
| 284 | StreamSupport.stream(deviceService.getAvailableDevices().spliterator(), false) |
| 285 | .filter(d -> !checkGatewayNode(d.id())) |
| 286 | .forEach(d -> populateRuleToGateway(d, gatewayDevice, vni)); |
| 287 | /*deviceService.getAvailableDevices().forEach(d -> { |
| 288 | if (!checkGatewayNode(d.id())) { |
| 289 | populateRuleToGateway(d, gatewayDevice, vni); |
| 290 | } |
| 291 | });*/ |
| 292 | } |
| 293 | |
| 294 | private void populateRuleToGateway(Device d, Device gatewayDevice, long vni) { |
| 295 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 296 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 297 | |
| 298 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 299 | .matchTunnelId(vni) |
| 300 | .matchEthDst(GATEWAYMAC); |
| 301 | tBuilder.extension(buildNiciraExtenstion(d.id(), getIPAddressforDevice(gatewayDevice)), d.id()) |
| 302 | .setOutput(getTunnelPort(d.id())); |
| 303 | |
| 304 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 305 | .withSelector(sBuilder.build()) |
| 306 | .withTreatment(tBuilder.build()) |
| 307 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 308 | .withPriority(ROUTING_RULE_PRIORITY) |
| 309 | .fromApp(appId) |
| 310 | .add(); |
| 311 | |
| 312 | flowObjectiveService.forward(d.id(), fo); |
| 313 | } |
| 314 | |
| 315 | private Ip4Address getIPAddressforDevice(Device device) { |
| 316 | return Ip4Address.valueOf(device.annotations().value("channelId").split(":")[0]); |
| 317 | } |
| 318 | |
| 319 | private Device getGatewayNode() { |
| 320 | final Device[] device = new Device[1]; |
| 321 | deviceService.getAvailableDevices().forEach(d -> { |
| 322 | if (checkGatewayNode(d.id())) { |
| 323 | device[0] = d; |
| 324 | } |
| 325 | }); |
| 326 | return device[0]; |
| 327 | } |
| 328 | |
| 329 | private boolean checkGatewayNode(DeviceId deviceId) { |
| 330 | return !deviceService.getPorts(deviceId).stream().anyMatch(port -> |
| 331 | port.annotations().value("portName").startsWith(PORTNAME_PREFIX_ROUTER) || |
| 332 | port.annotations().value("portName").startsWith(PORTNAME_PREFIX_VM)); |
| 333 | } |
| 334 | |
| 335 | private long getVni(OpenstackPort openstackPort) { |
| 336 | return Long.parseLong(openstackService.network(openstackPort.networkId()).segmentId()); |
| 337 | } |
| 338 | |
| 339 | public void removeExternalRules(OpenstackRouterInterface routerInterface) { |
| 340 | OpenstackPort openstackPort = openstackService.port(routerInterface.portId()); |
| 341 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 342 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 343 | .matchTunnelId(getVni(openstackPort)) |
| 344 | .matchEthDst(GATEWAYMAC); |
| 345 | |
| 346 | StreamSupport.stream(deviceService.getAvailableDevices().spliterator(), false) |
| 347 | .forEach(d -> { |
| 348 | if (checkGatewayNode(d.id())) { |
| 349 | removeExternalRule(d.id(), sBuilder, ForwardingObjective.Flag.VERSATILE); |
| 350 | } else { |
| 351 | removeExternalRule(d.id(), sBuilder, ForwardingObjective.Flag.SPECIFIC); |
| 352 | } |
| 353 | }); |
| 354 | |
| 355 | } |
| 356 | |
| 357 | private void removeExternalRule(DeviceId id, TrafficSelector.Builder sBuilder, ForwardingObjective.Flag flag) { |
| 358 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 359 | |
| 360 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 361 | .withSelector(sBuilder.build()) |
| 362 | .withTreatment(tBuilder.build()) |
| 363 | .withFlag(flag) |
| 364 | .withPriority(ROUTING_RULE_PRIORITY) |
| 365 | .fromApp(appId) |
| 366 | .remove(); |
| 367 | |
| 368 | flowObjectiveService.forward(id, fo); |
| 369 | } |
| 370 | |
| 371 | } |