| /* |
| * 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 com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.UDP; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.NetworkConfigService; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.DriverService; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.packet.InboundPacket; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketProcessor; |
| import org.onosproject.net.packet.PacketService; |
| import org.onosproject.openstackinterface.OpenstackFloatingIP; |
| import org.onosproject.openstackinterface.OpenstackInterfaceService; |
| import org.onosproject.openstackinterface.OpenstackPort; |
| import org.onosproject.openstackinterface.OpenstackRouter; |
| import org.onosproject.openstackinterface.OpenstackRouterInterface; |
| import org.onosproject.openstacknetworking.OpenstackRoutingService; |
| import org.onosproject.openstacknetworking.OpenstackSwitchingService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.groupedThreads; |
| |
| @Component(immediate = true) |
| @Service |
| /** |
| * Populates flow rules about L3 functionality for VMs in Openstack. |
| */ |
| public class OpenstackRoutingManager implements OpenstackRoutingService { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PacketService packetService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackInterfaceService openstackService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackSwitchingService openstackSwitchingService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowObjectiveService flowObjectiveService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DriverService driverService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry configRegistry; |
| |
| |
| |
| private ApplicationId appId; |
| private Map<String, OpenstackRouterInterface> routerInterfaceMap = Maps.newHashMap(); |
| private Map<Integer, String> portNumMap = initPortNumMap(); |
| private static final String APP_ID = "org.onosproject.openstackrouting"; |
| private static final String PORT_NAME = "portName"; |
| private static final String DEVICE_OWNER_ROUTER_INTERFACE = "network:router_interface"; |
| private final ConfigFactory configFactory = |
| new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY, OpenstackRoutingConfig.class, "openstackrouting") { |
| @Override |
| public OpenstackRoutingConfig createConfig() { |
| return new OpenstackRoutingConfig(); |
| } |
| }; |
| private final NetworkConfigListener configListener = new InternalConfigListener(); |
| |
| private OpenstackRoutingConfig config; |
| private static final int PNAT_PORT_NUM_START = 1024; |
| private static final int PNAT_PORT_NUM_END = 65535; |
| |
| private Map<Integer, String> initPortNumMap() { |
| Map<Integer, String> map = Maps.newHashMap(); |
| for (int i = PNAT_PORT_NUM_START; i < PNAT_PORT_NUM_END; i++) { |
| map.put(i, ""); |
| } |
| return map; |
| } |
| |
| private InternalPacketProcessor internalPacketProcessor = new InternalPacketProcessor(); |
| private ExecutorService l3EventExecutorService = |
| Executors.newSingleThreadExecutor(groupedThreads("onos/openstackrouting", "L3-event")); |
| private ExecutorService icmpEventExecutorService = |
| Executors.newSingleThreadExecutor(groupedThreads("onos/openstackrouting", "icmp-event")); |
| private ExecutorService arpEventExecutorService = |
| Executors.newSingleThreadExecutor(groupedThreads("onos/openstackrouting", "arp-event")); |
| private OpenstackIcmpHandler openstackIcmpHandler; |
| private OpenstackRoutingArpHandler openstackArpHandler; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_ID); |
| packetService.addProcessor(internalPacketProcessor, PacketProcessor.director(1)); |
| configRegistry.registerConfigFactory(configFactory); |
| configService.addListener(configListener); |
| |
| readConfiguration(); |
| |
| log.info("onos-openstackrouting started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| packetService.removeProcessor(internalPacketProcessor); |
| l3EventExecutorService.shutdown(); |
| icmpEventExecutorService.shutdown(); |
| arpEventExecutorService.shutdown(); |
| |
| log.info("onos-openstackrouting stopped"); |
| } |
| |
| |
| @Override |
| public void createFloatingIP(OpenstackFloatingIP openstackFloatingIP) { |
| |
| } |
| |
| @Override |
| public void updateFloatingIP(OpenstackFloatingIP openstackFloatingIP) { |
| |
| } |
| |
| @Override |
| public void deleteFloatingIP(String id) { |
| |
| } |
| |
| @Override |
| public void createRouter(OpenstackRouter openstackRouter) { |
| checkExternalConnection(openstackRouter, getOpenstackRouterInterface(openstackRouter)); |
| } |
| |
| @Override |
| public void updateRouter(OpenstackRouter openstackRouter) { |
| checkExternalConnection(openstackRouter, getOpenstackRouterInterface(openstackRouter)); |
| } |
| |
| @Override |
| public void deleteRouter(String id) { |
| //TODO |
| } |
| |
| @Override |
| public void updateRouterInterface(OpenstackRouterInterface routerInterface) { |
| routerInterfaceMap.putIfAbsent(routerInterface.id(), routerInterface); |
| List<OpenstackRouterInterface> routerInterfaces = Lists.newArrayList(); |
| routerInterfaces.add(routerInterface); |
| checkExternalConnection(getOpenstackRouter(routerInterface.id()), routerInterfaces); |
| } |
| |
| @Override |
| public void removeRouterInterface(OpenstackRouterInterface routerInterface) { |
| OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| openstackService, flowObjectiveService, deviceService, driverService, config); |
| rulePopulator.removeExternalRules(routerInterface); |
| routerInterfaceMap.remove(routerInterface.portId()); |
| } |
| |
| private void reloadInitL3Rules() { |
| openstackService.ports() |
| .stream() |
| .filter(p -> p.deviceOwner().equals(DEVICE_OWNER_ROUTER_INTERFACE)) |
| .forEach(p -> { |
| OpenstackRouterInterface routerInterface = portToRouterInterface(p); |
| updateRouterInterface(routerInterface); |
| }); |
| } |
| |
| private OpenstackRouterInterface portToRouterInterface(OpenstackPort p) { |
| OpenstackRouterInterface.Builder osBuilder = new OpenstackRouterInterface.Builder() |
| .id(checkNotNull(p.deviceId())) |
| .tenantId(checkNotNull(openstackService.network(p.networkId()).tenantId())) |
| .subnetId(checkNotNull(p.fixedIps().keySet().stream().findFirst().orElse(null)).toString()) |
| .portId(checkNotNull(p.id())); |
| |
| return osBuilder.build(); |
| } |
| |
| private class InternalPacketProcessor implements PacketProcessor { |
| |
| @Override |
| public void process(PacketContext context) { |
| |
| if (context.isHandled()) { |
| return; |
| } else if (!context.inPacket().receivedFrom().deviceId().toString() |
| .equals(config.gatewayBridgeId())) { |
| return; |
| } |
| |
| InboundPacket pkt = context.inPacket(); |
| Ethernet ethernet = pkt.parsed(); |
| |
| //TODO: Considers IPv6 later. |
| if (ethernet == null) { |
| return; |
| } else if (ethernet.getEtherType() == Ethernet.TYPE_IPV4) { |
| IPv4 iPacket = (IPv4) ethernet.getPayload(); |
| OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| openstackService, flowObjectiveService, deviceService, driverService, config); |
| switch (iPacket.getProtocol()) { |
| case IPv4.PROTOCOL_ICMP: |
| |
| icmpEventExecutorService.submit(() -> |
| openstackIcmpHandler.processIcmpPacket(context, ethernet)); |
| break; |
| case IPv4.PROTOCOL_UDP: |
| // don't process DHCP |
| UDP udpPacket = (UDP) iPacket.getPayload(); |
| if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT && |
| udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) { |
| break; |
| } |
| default: |
| int portNum = getPortNum(ethernet.getSourceMAC(), iPacket.getDestinationAddress()); |
| Port port = |
| getExternalPort(pkt.receivedFrom().deviceId(), config.gatewayExternalInterfaceName()); |
| if (port == null) { |
| log.warn("There`s no external interface"); |
| break; |
| } |
| OpenstackPort openstackPort = getOpenstackPort(ethernet.getSourceMAC(), |
| Ip4Address.valueOf(iPacket.getSourceAddress())); |
| l3EventExecutorService.execute(new OpenstackPnatHandler(rulePopulator, context, |
| portNum, openstackPort, port)); |
| break; |
| } |
| } else if (ethernet.getEtherType() == Ethernet.TYPE_ARP) { |
| arpEventExecutorService.submit(() -> |
| openstackArpHandler.processArpPacketFromRouter(context, ethernet)); |
| } |
| } |
| |
| private int getPortNum(MacAddress sourceMac, int destinationAddress) { |
| int portNum = portNumMap.keySet().stream() |
| .filter(k -> portNumMap.get(k).equals("")).findFirst().orElse(0); |
| portNumMap.replace(portNum, sourceMac.toString().concat(":").concat(String.valueOf(destinationAddress))); |
| return portNum; |
| } |
| } |
| |
| private Port getExternalPort(DeviceId deviceId, String interfaceName) { |
| return deviceService.getPorts(deviceId) |
| .stream() |
| .filter(p -> p.annotations().value(PORT_NAME).equals(interfaceName)) |
| .findAny() |
| .orElse(null); |
| } |
| |
| private void checkExternalConnection(OpenstackRouter router, |
| Collection<OpenstackRouterInterface> routerInterfaces) { |
| checkNotNull(router, "Router can not be null"); |
| checkNotNull(routerInterfaces, "routerInterfaces can not be null"); |
| Ip4Address externalIp = router.gatewayExternalInfo().externalFixedIps() |
| .values().stream().findFirst().orElse(null); |
| if ((externalIp == null) || (!router.gatewayExternalInfo().isEnablePnat())) { |
| log.debug("Not satisfied to set pnat configuration"); |
| return; |
| } |
| routerInterfaces.forEach(routerInterface -> initiateL3Rule(router, routerInterface)); |
| } |
| |
| private void initiateL3Rule(OpenstackRouter router, OpenstackRouterInterface routerInterface) { |
| long vni = Long.parseLong(openstackService.network(openstackService |
| .port(routerInterface.portId()).networkId()).segmentId()); |
| OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| openstackService, flowObjectiveService, deviceService, driverService, config); |
| rulePopulator.populateExternalRules(vni, router, routerInterface); |
| } |
| |
| private Collection<OpenstackRouterInterface> getOpenstackRouterInterface(OpenstackRouter router) { |
| return routerInterfaceMap.values().stream().filter(i -> i.id().equals(router.id())) |
| .collect(Collectors.toList()); |
| } |
| |
| private OpenstackRouter getOpenstackRouter(String id) { |
| return openstackService.routers().stream().filter(r -> |
| r.id().equals(id)).findAny().orElse(null); |
| } |
| |
| private OpenstackPort getOpenstackPort(MacAddress sourceMac, Ip4Address ip4Address) { |
| OpenstackPort openstackPort = openstackService.ports().stream() |
| .filter(p -> p.macAddress().equals(sourceMac)).findFirst().orElse(null); |
| return checkNotNull(openstackPort.fixedIps().values().stream().findFirst().orElse(null)) |
| .equals(ip4Address) ? openstackPort : null; |
| } |
| |
| private void readConfiguration() { |
| config = configService.getConfig(appId, OpenstackRoutingConfig.class); |
| if (config == null) { |
| log.error("No configuration found"); |
| return; |
| } |
| |
| checkNotNull(config.physicalRouterMac()); |
| checkNotNull(config.gatewayBridgeId()); |
| checkNotNull(config.gatewayExternalInterfaceMac()); |
| checkNotNull(config.gatewayExternalInterfaceName()); |
| |
| log.debug("Configured info: {}, {}, {}, {}", config.physicalRouterMac(), config.gatewayBridgeId(), |
| config.gatewayExternalInterfaceMac(), config.gatewayExternalInterfaceName()); |
| |
| reloadInitL3Rules(); |
| |
| openstackIcmpHandler = new OpenstackIcmpHandler(packetService, deviceService, |
| openstackService, config, openstackSwitchingService); |
| openstackArpHandler = new OpenstackRoutingArpHandler(packetService, openstackService, config); |
| |
| openstackIcmpHandler.requestPacket(appId); |
| openstackArpHandler.requestPacket(appId); |
| |
| log.info("OpenstackRouting configured"); |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| if (!event.configClass().equals(OpenstackRoutingConfig.class)) { |
| return; |
| } |
| |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| case CONFIG_UPDATED: |
| l3EventExecutorService.execute(OpenstackRoutingManager.this::readConfiguration); |
| break; |
| default: |
| log.debug("Unsupported event type {}", event.type().toString()); |
| break; |
| } |
| } |
| } |
| } |