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 com.google.common.collect.Lists; |
| 19 | import com.google.common.collect.Maps; |
| 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
| 23 | import org.apache.felix.scr.annotations.Reference; |
| 24 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 25 | import org.apache.felix.scr.annotations.Service; |
| 26 | import org.onlab.packet.Ethernet; |
| 27 | import org.onlab.packet.IPv4; |
| 28 | import org.onlab.packet.Ip4Address; |
| 29 | import org.onlab.packet.MacAddress; |
| 30 | import org.onosproject.core.ApplicationId; |
| 31 | import org.onosproject.core.CoreService; |
| 32 | import org.onosproject.net.device.DeviceService; |
| 33 | import org.onosproject.net.driver.DriverService; |
| 34 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 35 | import org.onosproject.net.packet.InboundPacket; |
| 36 | import org.onosproject.net.packet.PacketContext; |
| 37 | import org.onosproject.net.packet.PacketProcessor; |
| 38 | import org.onosproject.net.packet.PacketService; |
| 39 | import org.onosproject.openstacknetworking.OpenstackFloatingIP; |
| 40 | import org.onosproject.openstacknetworking.OpenstackNetworkingService; |
| 41 | import org.onosproject.openstacknetworking.OpenstackPort; |
| 42 | import org.onosproject.openstacknetworking.OpenstackRouter; |
| 43 | import org.onosproject.openstacknetworking.OpenstackRouterInterface; |
| 44 | import org.onosproject.openstacknetworking.OpenstackRoutingService; |
| 45 | import org.slf4j.Logger; |
| 46 | import org.slf4j.LoggerFactory; |
| 47 | |
| 48 | import java.util.Collection; |
| 49 | import java.util.List; |
| 50 | import java.util.Map; |
| 51 | import java.util.concurrent.ExecutorService; |
| 52 | import java.util.concurrent.Executors; |
| 53 | import java.util.stream.Collectors; |
| 54 | |
| 55 | import static com.google.common.base.Preconditions.checkNotNull; |
| 56 | import static org.onlab.util.Tools.groupedThreads; |
| 57 | |
| 58 | @Service |
| 59 | @Component(immediate = true) |
| 60 | /** |
| 61 | * Populates flow rules about L3 functionality for VMs in Openstack. |
| 62 | */ |
| 63 | public class OpenstackRoutingManager implements OpenstackRoutingService { |
| 64 | private final Logger log = LoggerFactory |
| 65 | .getLogger(getClass()); |
| 66 | |
| 67 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 68 | protected CoreService coreService; |
| 69 | |
| 70 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 71 | protected PacketService packetService; |
| 72 | |
| 73 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 74 | protected DeviceService deviceService; |
| 75 | |
| 76 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 77 | protected OpenstackNetworkingService openstackService; |
| 78 | |
| 79 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 80 | protected FlowObjectiveService flowObjectiveService; |
| 81 | |
| 82 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 83 | protected DriverService driverService; |
| 84 | |
| 85 | private ApplicationId appId; |
| 86 | private Map<String, OpenstackRouterInterface> routerInterfaceMap = Maps.newHashMap(); |
| 87 | private Map<Integer, String> portNumMap = initPortNumMap(); |
| 88 | private static final String APP_ID = "org.onosproject.openstackrouting"; |
| 89 | private Map<Integer, String> initPortNumMap() { |
| 90 | Map<Integer, String> map = Maps.newHashMap(); |
| 91 | for (int i = 1024; i < 65535; i++) { |
| 92 | map.put(i, ""); |
| 93 | } |
| 94 | return map; |
| 95 | } |
| 96 | |
| 97 | private InternalPacketProcessor internalPacketProcessor = new InternalPacketProcessor(); |
| 98 | private ExecutorService l3EventExecutorService = |
| 99 | Executors.newSingleThreadExecutor(groupedThreads("onos/openstackrouting", "L3-event")); |
| 100 | private ExecutorService icmpEventExecutorService = |
| 101 | Executors.newSingleThreadExecutor(groupedThreads("onos/openstackrouting", "icmp-event")); |
| 102 | |
| 103 | @Activate |
| 104 | protected void activate() { |
| 105 | appId = coreService.registerApplication(APP_ID); |
| 106 | packetService.addProcessor(internalPacketProcessor, PacketProcessor.director(1)); |
| 107 | |
| 108 | log.info("onos-openstackrouting started"); |
| 109 | } |
| 110 | |
| 111 | @Deactivate |
| 112 | protected void deactivate() { |
| 113 | packetService.removeProcessor(internalPacketProcessor); |
| 114 | log.info("onos-openstackrouting stopped"); |
| 115 | } |
| 116 | |
| 117 | |
| 118 | @Override |
| 119 | public void createFloatingIP(OpenstackFloatingIP openstackFloatingIP) { |
| 120 | |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public void updateFloatingIP(OpenstackFloatingIP openstackFloatingIP) { |
| 125 | |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void deleteFloatingIP(String id) { |
| 130 | |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public void createRouter(OpenstackRouter openstackRouter) { |
| 135 | checkExternalConnection(openstackRouter, getOpenstackRouterInterface(openstackRouter)); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public void updateRouter(OpenstackRouter openstackRouter) { |
| 140 | checkExternalConnection(openstackRouter, getOpenstackRouterInterface(openstackRouter)); |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void deleteRouter(String id) { |
| 145 | //TODO |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void updateRouterInterface(OpenstackRouterInterface routerInterface) { |
| 150 | routerInterfaceMap.putIfAbsent(routerInterface.portId(), routerInterface); |
| 151 | List<OpenstackRouterInterface> routerInterfaces = Lists.newArrayList(); |
| 152 | routerInterfaces.add(routerInterface); |
| 153 | checkExternalConnection(getOpenstackRouter(routerInterface.tenantId()), routerInterfaces); |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public void removeRouterInterface(OpenstackRouterInterface routerInterface) { |
| 158 | OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| 159 | openstackService, flowObjectiveService, deviceService, driverService); |
| 160 | rulePopulator.removeExternalRules(routerInterface); |
| 161 | routerInterfaceMap.remove(routerInterface.portId()); |
| 162 | } |
| 163 | private class InternalPacketProcessor implements PacketProcessor { |
| 164 | |
| 165 | @Override |
| 166 | public void process(PacketContext context) { |
| 167 | |
| 168 | if (context.isHandled()) { |
| 169 | return; |
| 170 | } |
| 171 | |
| 172 | InboundPacket pkt = context.inPacket(); |
| 173 | Ethernet ethernet = pkt.parsed(); |
| 174 | |
| 175 | if (ethernet != null && ethernet.getEtherType() == Ethernet.TYPE_IPV4) { |
| 176 | IPv4 iPacket = (IPv4) ethernet.getPayload(); |
| 177 | OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| 178 | openstackService, flowObjectiveService, deviceService, |
| 179 | driverService); |
| 180 | switch (iPacket.getProtocol()) { |
| 181 | case IPv4.PROTOCOL_ICMP: |
| 182 | icmpEventExecutorService.execute(new OpenstackIcmpHandler(rulePopulator, context)); |
| 183 | break; |
| 184 | default: |
| 185 | int portNum = getPortNum(ethernet.getSourceMAC(), iPacket.getDestinationAddress()); |
| 186 | OpenstackPort openstackPort = getOpenstackPort(ethernet.getSourceMAC(), |
| 187 | Ip4Address.valueOf(iPacket.getSourceAddress())); |
| 188 | l3EventExecutorService.execute(new OpenstackPnatHandler(rulePopulator, context, |
| 189 | portNum, openstackPort)); |
| 190 | break; |
| 191 | } |
| 192 | |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | private int getPortNum(MacAddress sourceMac, int destinationAddress) { |
| 197 | int portNum = portNumMap.keySet().stream() |
| 198 | .filter(k -> portNumMap.get(k).equals("")).findFirst().orElse(0); |
| 199 | portNumMap.replace(portNum, sourceMac.toString().concat(":").concat(String.valueOf(destinationAddress))); |
| 200 | return portNum; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | private void checkExternalConnection(OpenstackRouter router, |
| 205 | Collection<OpenstackRouterInterface> routerInterfaces) { |
| 206 | checkNotNull(router, "Router can not be null"); |
| 207 | checkNotNull(routerInterfaces, "RouterInterfaces can not be null"); |
| 208 | Ip4Address externalIp = router.gatewayExternalInfo().externalFixedIps() |
| 209 | .values().stream().findFirst().orElse(null); |
| 210 | if ((externalIp == null) || (!router.gatewayExternalInfo().isEnablePnat())) { |
| 211 | log.debug("Failed to set pnat configuration"); |
| 212 | return; |
| 213 | } |
| 214 | routerInterfaces.forEach(routerInterface -> { |
| 215 | initiateL3Rule(router, routerInterface); |
| 216 | }); |
| 217 | } |
| 218 | |
| 219 | private void initiateL3Rule(OpenstackRouter router, OpenstackRouterInterface routerInterface) { |
| 220 | long vni = Long.parseLong(openstackService.network(openstackService |
| 221 | .port(routerInterface.portId()).networkId()).segmentId()); |
| 222 | OpenstackRoutingRulePopulator rulePopulator = new OpenstackRoutingRulePopulator(appId, |
| 223 | openstackService, flowObjectiveService, deviceService, driverService); |
| 224 | rulePopulator.populateExternalRules(vni, router, routerInterface); |
| 225 | } |
| 226 | |
| 227 | private Collection<OpenstackRouterInterface> getOpenstackRouterInterface(OpenstackRouter router) { |
| 228 | return routerInterfaceMap.values().stream().filter(i -> i.id().equals(router.id())) |
| 229 | .collect(Collectors.toList()); |
| 230 | } |
| 231 | |
| 232 | private OpenstackRouter getOpenstackRouter(String tenantId) { |
| 233 | return openstackService.routers().stream().filter(r -> |
| 234 | r.tenantId().equals(tenantId)).findFirst().orElse(null); |
| 235 | } |
| 236 | |
| 237 | private OpenstackPort getOpenstackPort(MacAddress sourceMac, Ip4Address ip4Address) { |
| 238 | OpenstackPort openstackPort = openstackService.ports("").stream() |
| 239 | .filter(p -> p.macAddress().equals(sourceMac)).findFirst().orElse(null); |
| 240 | return openstackPort.fixedIps().values().stream().findFirst().orElse(null) |
| 241 | .equals(ip4Address) ? openstackPort : null; |
| 242 | } |
| 243 | |
| 244 | } |