| /* |
| * Copyright 2016 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.openstacknetworking.routing; |
| |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.TCP; |
| import org.onlab.packet.TpPort; |
| import org.onlab.packet.UDP; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.ExtensionTreatmentResolver; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.DefaultDriverData; |
| import org.onosproject.net.driver.DefaultDriverHandler; |
| import org.onosproject.net.driver.Driver; |
| import org.onosproject.net.driver.DriverHandler; |
| import org.onosproject.net.driver.DriverService; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.instructions.ExtensionPropertyException; |
| import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| import org.onosproject.net.flow.instructions.ExtensionTreatmentType; |
| import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.packet.InboundPacket; |
| import org.onosproject.openstacknetworking.OpenstackNetworkingService; |
| import org.onosproject.openstacknetworking.OpenstackPort; |
| import org.onosproject.openstacknetworking.OpenstackRouter; |
| import org.onosproject.openstacknetworking.OpenstackRouterInterface; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.stream.StreamSupport; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Populates Routing Flow Rules. |
| */ |
| public class OpenstackRoutingRulePopulator { |
| |
| private static Logger log = LoggerFactory |
| .getLogger(OpenstackRoutingRulePopulator.class); |
| private ApplicationId appId; |
| private FlowObjectiveService flowObjectiveService; |
| private OpenstackNetworkingService openstackService; |
| private DeviceService deviceService; |
| private DriverService driverService; |
| |
| public static final String PORTNAME_PREFIX_VM = "tap"; |
| public static final String PORTNAME_PREFIX_ROUTER = "qr"; |
| public static final String PORTNAME_PREFIX_TUNNEL = "vxlan"; |
| public static final String PORTNAME = "portName"; |
| |
| private static final int ROUTING_RULE_PRIORITY = 25000; |
| private static final int PNAT_RULE_PRIORITY = 24000; |
| private static final int PNAT_TIMEOUT = 120; |
| private static final MacAddress GATEWAYMAC = MacAddress.valueOf("1f:1f:1f:1f:1f:1f"); |
| |
| private InboundPacket inboundPacket; |
| private OpenstackPort openstackPort; |
| private int portNum; |
| private MacAddress externalInterface; |
| private MacAddress externalRouter; |
| private OpenstackRouter router; |
| private OpenstackRouterInterface routerInterface; |
| |
| // TODO: This will be replaced to get the information from openstackswitchingservice. |
| private static final String EXTERNAL_INTERFACE_NAME = "eth3"; |
| |
| public OpenstackRoutingRulePopulator(ApplicationId appId, OpenstackNetworkingService openstackService, |
| FlowObjectiveService flowObjectiveService, |
| DeviceService deviceService, DriverService driverService) { |
| this.appId = appId; |
| this.flowObjectiveService = flowObjectiveService; |
| this.openstackService = openstackService; |
| this.deviceService = deviceService; |
| this.driverService = driverService; |
| } |
| |
| public void populatePnatFlowRules(InboundPacket inboundPacket, OpenstackPort openstackPort, int portNum, |
| MacAddress externalInterfaceMacAddress, MacAddress externalRouterMacAddress) { |
| this.inboundPacket = inboundPacket; |
| this.openstackPort = openstackPort; |
| this.portNum = portNum; |
| this.externalInterface = externalInterfaceMacAddress; |
| this.externalRouter = externalRouterMacAddress; |
| |
| long vni = getVni(openstackPort); |
| |
| populatePnatIncomingFlowRules(vni); |
| populatePnatOutgoingFlowRules(vni); |
| } |
| |
| private void populatePnatOutgoingFlowRules(long vni) { |
| IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPProtocol(iPacket.getProtocol()) |
| .matchTunnelId(vni) |
| .matchIPSrc(IpPrefix.valueOf(iPacket.getSourceAddress(), 32)) |
| .matchIPDst(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| tBuilder.setEthSrc(externalInterface) |
| .setEthDst(externalRouter); |
| |
| switch (iPacket.getProtocol()) { |
| case IPv4.PROTOCOL_TCP: |
| TCP tcpPacket = (TCP) iPacket.getPayload(); |
| sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getSourcePort())) |
| .matchTcpDst(TpPort.tpPort(tcpPacket.getDestinationPort())); |
| tBuilder.setTcpDst(TpPort.tpPort(portNum)); |
| break; |
| case IPv4.PROTOCOL_UDP: |
| UDP udpPacket = (UDP) iPacket.getPayload(); |
| sBuilder.matchUdpDst(TpPort.tpPort(udpPacket.getSourcePort())) |
| .matchUdpDst(TpPort.tpPort(udpPacket.getDestinationPort())); |
| tBuilder.setUdpDst(TpPort.tpPort(portNum)); |
| break; |
| default: |
| break; |
| } |
| |
| Port port = getPortNumOfExternalInterface(); |
| checkNotNull(port, "Port can not be null"); |
| tBuilder.setOutput(port.number()); |
| |
| ForwardingObjective fo = DefaultForwardingObjective.builder() |
| .withSelector(sBuilder.build()) |
| .withTreatment(tBuilder.build()) |
| .withFlag(ForwardingObjective.Flag.VERSATILE) |
| .withPriority(PNAT_RULE_PRIORITY) |
| .makeTemporary(PNAT_TIMEOUT) |
| .fromApp(appId) |
| .add(); |
| |
| flowObjectiveService.forward(inboundPacket.receivedFrom().deviceId(), fo); |
| } |
| |
| private Port getPortNumOfExternalInterface() { |
| return deviceService.getPorts(inboundPacket.receivedFrom().deviceId()).stream() |
| .filter(p -> p.annotations().value("portName").equals(EXTERNAL_INTERFACE_NAME)) |
| .findAny().orElse(null); |
| } |
| |
| |
| private void populatePnatIncomingFlowRules(long vni) { |
| IPv4 iPacket = (IPv4) inboundPacket.parsed().getPayload(); |
| DeviceId deviceId = inboundPacket.receivedFrom().deviceId(); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPProtocol(iPacket.getProtocol()) |
| .matchIPSrc(IpPrefix.valueOf(iPacket.getDestinationAddress(), 32)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| tBuilder.setTunnelId(vni) |
| .setIpDst(IpAddress.valueOf(iPacket.getSourceAddress())); |
| |
| switch (iPacket.getProtocol()) { |
| case IPv4.PROTOCOL_TCP: |
| TCP tcpPacket = (TCP) iPacket.getPayload(); |
| sBuilder.matchTcpSrc(TpPort.tpPort(tcpPacket.getDestinationPort())) |
| .matchTcpDst(TpPort.tpPort(portNum)); |
| tBuilder.setTcpDst(TpPort.tpPort(tcpPacket.getSourcePort())); |
| break; |
| case IPv4.PROTOCOL_UDP: |
| UDP udpPacket = (UDP) iPacket.getPayload(); |
| sBuilder.matchUdpSrc(TpPort.tpPort(udpPacket.getDestinationPort())) |
| .matchUdpDst(TpPort.tpPort(portNum)); |
| tBuilder.setUdpDst(TpPort.tpPort(udpPacket.getSourcePort())); |
| break; |
| default: |
| break; |
| } |
| |
| tBuilder.extension(buildNiciraExtenstion(deviceId, Ip4Address.valueOf(iPacket.getSourceAddress())), deviceId) |
| .setOutput(getTunnelPort(deviceId)); |
| |
| ForwardingObjective fo = DefaultForwardingObjective.builder() |
| .withSelector(sBuilder.build()) |
| .withTreatment(tBuilder.build()) |
| .withFlag(ForwardingObjective.Flag.VERSATILE) |
| .withPriority(PNAT_RULE_PRIORITY) |
| .makeTemporary(PNAT_TIMEOUT) |
| .fromApp(appId) |
| .add(); |
| |
| flowObjectiveService.forward(inboundPacket.receivedFrom().deviceId(), fo); |
| } |
| |
| private ExtensionTreatment buildNiciraExtenstion(DeviceId id, Ip4Address hostIp) { |
| Driver driver = driverService.getDriver(id); |
| DriverHandler driverHandler = new DefaultDriverHandler(new DefaultDriverData(driver, id)); |
| ExtensionTreatmentResolver resolver = driverHandler.behaviour(ExtensionTreatmentResolver.class); |
| |
| ExtensionTreatment extensionInstruction = |
| resolver.getExtensionInstruction( |
| ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST.type()); |
| |
| try { |
| extensionInstruction.setPropertyValue("tunnelDst", hostIp); |
| } catch (ExtensionPropertyException e) { |
| log.error("Error setting Nicira extension setting {}", e); |
| } |
| |
| return extensionInstruction; |
| } |
| |
| private PortNumber getTunnelPort(DeviceId deviceId) { |
| Port port = deviceService.getPorts(deviceId).stream() |
| .filter(p -> p.annotations().value("portName").equals(PORTNAME_PREFIX_TUNNEL)) |
| .findAny().orElse(null); |
| |
| if (port == null) { |
| log.error("No TunnelPort was created."); |
| return null; |
| } |
| return port.number(); |
| |
| } |
| |
| public void populateExternalRules(long vni, OpenstackRouter router, |
| OpenstackRouterInterface routerInterface) { |
| this.router = router; |
| this.routerInterface = routerInterface; |
| |
| // 1. computeNode to gateway |
| populateComputeNodeRules(vni); |
| // 2. gatewayNode to controller |
| populateRuleGatewaytoController(vni); |
| } |
| |
| private void populateRuleGatewaytoController(long vni) { |
| Device gatewayDevice = getGatewayNode(); |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| |
| sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| .matchTunnelId(vni) |
| .matchEthDst(GATEWAYMAC); |
| tBuilder.setOutput(PortNumber.CONTROLLER); |
| |
| ForwardingObjective fo = DefaultForwardingObjective.builder() |
| .withSelector(sBuilder.build()) |
| .withTreatment(tBuilder.build()) |
| .withFlag(ForwardingObjective.Flag.VERSATILE) |
| .withPriority(ROUTING_RULE_PRIORITY) |
| .fromApp(appId) |
| .add(); |
| |
| flowObjectiveService.forward(gatewayDevice.id(), fo); |
| } |
| |
| private void populateComputeNodeRules(long vni) { |
| Device gatewayDevice = getGatewayNode(); |
| |
| StreamSupport.stream(deviceService.getAvailableDevices().spliterator(), false) |
| .filter(d -> !checkGatewayNode(d.id())) |
| .forEach(d -> populateRuleToGateway(d, gatewayDevice, vni)); |
| /*deviceService.getAvailableDevices().forEach(d -> { |
| if (!checkGatewayNode(d.id())) { |
| populateRuleToGateway(d, gatewayDevice, vni); |
| } |
| });*/ |
| } |
| |
| private void populateRuleToGateway(Device d, Device gatewayDevice, long vni) { |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| |
| sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| .matchTunnelId(vni) |
| .matchEthDst(GATEWAYMAC); |
| tBuilder.extension(buildNiciraExtenstion(d.id(), getIPAddressforDevice(gatewayDevice)), d.id()) |
| .setOutput(getTunnelPort(d.id())); |
| |
| ForwardingObjective fo = DefaultForwardingObjective.builder() |
| .withSelector(sBuilder.build()) |
| .withTreatment(tBuilder.build()) |
| .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| .withPriority(ROUTING_RULE_PRIORITY) |
| .fromApp(appId) |
| .add(); |
| |
| flowObjectiveService.forward(d.id(), fo); |
| } |
| |
| private Ip4Address getIPAddressforDevice(Device device) { |
| return Ip4Address.valueOf(device.annotations().value("channelId").split(":")[0]); |
| } |
| |
| private Device getGatewayNode() { |
| final Device[] device = new Device[1]; |
| deviceService.getAvailableDevices().forEach(d -> { |
| if (checkGatewayNode(d.id())) { |
| device[0] = d; |
| } |
| }); |
| return device[0]; |
| } |
| |
| private boolean checkGatewayNode(DeviceId deviceId) { |
| return !deviceService.getPorts(deviceId).stream().anyMatch(port -> |
| port.annotations().value("portName").startsWith(PORTNAME_PREFIX_ROUTER) || |
| port.annotations().value("portName").startsWith(PORTNAME_PREFIX_VM)); |
| } |
| |
| private long getVni(OpenstackPort openstackPort) { |
| return Long.parseLong(openstackService.network(openstackPort.networkId()).segmentId()); |
| } |
| |
| public void removeExternalRules(OpenstackRouterInterface routerInterface) { |
| OpenstackPort openstackPort = openstackService.port(routerInterface.portId()); |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| .matchTunnelId(getVni(openstackPort)) |
| .matchEthDst(GATEWAYMAC); |
| |
| StreamSupport.stream(deviceService.getAvailableDevices().spliterator(), false) |
| .forEach(d -> { |
| if (checkGatewayNode(d.id())) { |
| removeExternalRule(d.id(), sBuilder, ForwardingObjective.Flag.VERSATILE); |
| } else { |
| removeExternalRule(d.id(), sBuilder, ForwardingObjective.Flag.SPECIFIC); |
| } |
| }); |
| |
| } |
| |
| private void removeExternalRule(DeviceId id, TrafficSelector.Builder sBuilder, ForwardingObjective.Flag flag) { |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| |
| ForwardingObjective fo = DefaultForwardingObjective.builder() |
| .withSelector(sBuilder.build()) |
| .withTreatment(tBuilder.build()) |
| .withFlag(flag) |
| .withPriority(ROUTING_RULE_PRIORITY) |
| .fromApp(appId) |
| .remove(); |
| |
| flowObjectiveService.forward(id, fo); |
| } |
| |
| } |