| /* |
| * 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.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| 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.openstacknetworking.OpenstackFloatingIP; |
| import org.onosproject.openstacknetworking.OpenstackNetworkingService; |
| import org.onosproject.openstacknetworking.OpenstackPort; |
| import org.onosproject.openstacknetworking.OpenstackRouter; |
| import org.onosproject.openstacknetworking.OpenstackRouterInterface; |
| import org.onosproject.openstacknetworking.OpenstackRoutingService; |
| 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; |
| |
| @Service |
| @Component(immediate = true) |
| /** |
| * 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 OpenstackNetworkingService openstackService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowObjectiveService flowObjectiveService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DriverService driverService; |
| |
| 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 Map<Integer, String> initPortNumMap() { |
| Map<Integer, String> map = Maps.newHashMap(); |
| for (int i = 1024; i < 65535; 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")); |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_ID); |
| packetService.addProcessor(internalPacketProcessor, PacketProcessor.director(1)); |
| |
| log.info("onos-openstackrouting started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| packetService.removeProcessor(internalPacketProcessor); |
| 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.portId(), routerInterface); |
| List<OpenstackRouterInterface> routerInterfaces = Lists.newArrayList(); |
| routerInterfaces.add(routerInterface); |
| checkExternalConnection(getOpenstackRouter(routerInterface.tenantId()), routerInterfaces); |
| } |
| |
| @Override |
| public void removeRouterInterface(OpenstackRouterInterface routerInterface) { |
| OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| openstackService, flowObjectiveService, deviceService, driverService); |
| rulePopulator.removeExternalRules(routerInterface); |
| routerInterfaceMap.remove(routerInterface.portId()); |
| } |
| private class InternalPacketProcessor implements PacketProcessor { |
| |
| @Override |
| public void process(PacketContext context) { |
| |
| if (context.isHandled()) { |
| return; |
| } |
| |
| InboundPacket pkt = context.inPacket(); |
| Ethernet ethernet = pkt.parsed(); |
| |
| if (ethernet != null && ethernet.getEtherType() == Ethernet.TYPE_IPV4) { |
| IPv4 iPacket = (IPv4) ethernet.getPayload(); |
| OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| openstackService, flowObjectiveService, deviceService, |
| driverService); |
| switch (iPacket.getProtocol()) { |
| case IPv4.PROTOCOL_ICMP: |
| icmpEventExecutorService.execute(new OpenstackIcmpHandler(rulePopulator, context)); |
| break; |
| default: |
| int portNum = getPortNum(ethernet.getSourceMAC(), iPacket.getDestinationAddress()); |
| OpenstackPort openstackPort = getOpenstackPort(ethernet.getSourceMAC(), |
| Ip4Address.valueOf(iPacket.getSourceAddress())); |
| l3EventExecutorService.execute(new OpenstackPnatHandler(rulePopulator, context, |
| portNum, openstackPort)); |
| break; |
| } |
| |
| } |
| } |
| |
| 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 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("Failed 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); |
| 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 tenantId) { |
| return openstackService.routers().stream().filter(r -> |
| r.tenantId().equals(tenantId)).findFirst().orElse(null); |
| } |
| |
| private OpenstackPort getOpenstackPort(MacAddress sourceMac, Ip4Address ip4Address) { |
| OpenstackPort openstackPort = openstackService.ports("").stream() |
| .filter(p -> p.macAddress().equals(sourceMac)).findFirst().orElse(null); |
| return openstackPort.fixedIps().values().stream().findFirst().orElse(null) |
| .equals(ip4Address) ? openstackPort : null; |
| } |
| |
| } |