Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 1 | package net.floodlightcontroller.flowcache; |
| 2 | |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 3 | import java.io.IOException; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 4 | import java.util.ArrayList; |
| 5 | import java.util.Collection; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 6 | import java.util.EnumSet; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 7 | import java.util.HashMap; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 8 | import java.util.List; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 9 | import java.util.Map; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 10 | import java.util.concurrent.Executors; |
| 11 | import java.util.concurrent.ScheduledExecutorService; |
| 12 | import java.util.concurrent.ScheduledFuture; |
| 13 | import java.util.concurrent.TimeUnit; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 14 | |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 15 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 16 | import net.floodlightcontroller.core.INetMapStorage; |
| 17 | import net.floodlightcontroller.core.INetMapTopologyObjects.IFlowEntry; |
| 18 | import net.floodlightcontroller.core.INetMapTopologyObjects.IFlowPath; |
| 19 | import net.floodlightcontroller.core.IOFSwitch; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 20 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 21 | import net.floodlightcontroller.core.module.FloodlightModuleException; |
| 22 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 23 | import net.floodlightcontroller.core.module.IFloodlightService; |
| 24 | import net.floodlightcontroller.flowcache.IFlowService; |
| 25 | import net.floodlightcontroller.flowcache.web.FlowWebRoutable; |
| 26 | import net.floodlightcontroller.restserver.IRestApiService; |
| 27 | import net.floodlightcontroller.util.CallerId; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 28 | import net.floodlightcontroller.util.DataPath; |
| 29 | import net.floodlightcontroller.util.Dpid; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 30 | import net.floodlightcontroller.util.DataPathEndpoints; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 31 | import net.floodlightcontroller.util.FlowEntry; |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 32 | import net.floodlightcontroller.util.FlowEntryAction; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 33 | import net.floodlightcontroller.util.FlowEntryId; |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 34 | import net.floodlightcontroller.util.FlowEntryMatch; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 35 | import net.floodlightcontroller.util.FlowEntrySwitchState; |
| 36 | import net.floodlightcontroller.util.FlowEntryUserState; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 37 | import net.floodlightcontroller.util.FlowId; |
| 38 | import net.floodlightcontroller.util.FlowPath; |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 39 | import net.floodlightcontroller.util.IPv4Net; |
| 40 | import net.floodlightcontroller.util.MACAddress; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 41 | import net.floodlightcontroller.util.OFMessageDamper; |
| 42 | import net.floodlightcontroller.util.Port; |
| 43 | import net.onrc.onos.util.GraphDBConnection; |
| 44 | import net.onrc.onos.util.GraphDBConnection.Transaction; |
| 45 | |
| 46 | import org.openflow.protocol.OFFlowMod; |
| 47 | import org.openflow.protocol.OFMatch; |
| 48 | import org.openflow.protocol.OFPacketOut; |
| 49 | import org.openflow.protocol.OFType; |
| 50 | import org.openflow.protocol.action.OFAction; |
| 51 | import org.openflow.protocol.action.OFActionOutput; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 52 | |
| 53 | import org.slf4j.Logger; |
| 54 | import org.slf4j.LoggerFactory; |
| 55 | |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 56 | public class FlowManager implements IFloodlightModule, IFlowService, INetMapStorage { |
| 57 | |
| 58 | public GraphDBConnection conn; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 59 | |
| 60 | protected IRestApiService restApi; |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 61 | protected IFloodlightProviderService floodlightProvider; |
| 62 | |
| 63 | protected OFMessageDamper messageDamper; |
| 64 | |
| 65 | protected static int OFMESSAGE_DAMPER_CAPACITY = 50000; // TODO: find sweet spot |
| 66 | protected static int OFMESSAGE_DAMPER_TIMEOUT = 250; // ms |
| 67 | public static short FLOWMOD_DEFAULT_IDLE_TIMEOUT = 0; // infinity |
| 68 | public static short FLOWMOD_DEFAULT_HARD_TIMEOUT = 0; // infinite |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 69 | |
| 70 | /** The logger. */ |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 71 | private static Logger log = LoggerFactory.getLogger(FlowManager.class); |
| 72 | |
| 73 | // The periodic task(s) |
| 74 | private final ScheduledExecutorService scheduler = |
| 75 | Executors.newScheduledThreadPool(1); |
| 76 | final Runnable reader = new Runnable() { |
| 77 | public void run() { |
| 78 | // log.debug("Reading Flow Entries from the Network Map..."); |
| 79 | if (floodlightProvider == null) { |
| 80 | log.debug("FloodlightProvider service not found!"); |
| 81 | return; |
| 82 | } |
| 83 | |
| 84 | Map<Long, IOFSwitch> mySwitches = floodlightProvider.getSwitches(); |
| 85 | |
| 86 | // Fetch all Flow Entries |
| 87 | Iterable<IFlowEntry> flowEntries = conn.utils().getAllFlowEntries(conn); |
| 88 | for (IFlowEntry flowEntryObj : flowEntries) { |
| 89 | FlowEntryId flowEntryId = |
| 90 | new FlowEntryId(flowEntryObj.getFlowEntryId()); |
| 91 | String userState = flowEntryObj.getUserState(); |
| 92 | String switchState = flowEntryObj.getSwitchState(); |
| 93 | |
| 94 | log.debug("Found Flow Entry {}: ", flowEntryId.toString()); |
| 95 | log.debug("User State {}:", userState); |
| 96 | log.debug("Switch State {}:", switchState); |
| 97 | |
| 98 | if (! switchState.equals("FE_SWITCH_NOT_UPDATED")) { |
| 99 | // Ignore the entry: nothing to do |
| 100 | continue; |
| 101 | } |
| 102 | |
| 103 | Dpid dpid = new Dpid(flowEntryObj.getSwitchDpid()); |
| 104 | IOFSwitch mySwitch = mySwitches.get(dpid.value()); |
| 105 | if (mySwitch == null) { |
| 106 | log.debug("Flow Entry ignored: not my switch"); |
| 107 | continue; |
| 108 | } |
| 109 | |
| 110 | // |
| 111 | // Create the Open Flow Flow Modification Entry to push |
| 112 | // |
| 113 | OFFlowMod fm = |
| 114 | (OFFlowMod) floodlightProvider.getOFMessageFactory() |
| 115 | .getMessage(OFType.FLOW_MOD); |
| 116 | long cookie = flowEntryId.value(); |
| 117 | |
| 118 | short flowModCommand = OFFlowMod.OFPFC_ADD; |
| 119 | if (userState.equals("FE_USER_ADD")) { |
| 120 | flowModCommand = OFFlowMod.OFPFC_ADD; |
| 121 | } else if (userState.equals("FE_USER_MODIFY")) { |
| 122 | flowModCommand = OFFlowMod.OFPFC_MODIFY_STRICT; |
| 123 | } else if (userState.equals("FE_USER_DELETE")) { |
| 124 | flowModCommand = OFFlowMod.OFPFC_DELETE_STRICT; |
| 125 | } else { |
| 126 | // Unknown user state. Ignore the entry |
| 127 | continue; |
| 128 | } |
| 129 | |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 130 | // |
| 131 | // Fetch the match conditions |
| 132 | // |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 133 | OFMatch match = new OFMatch(); |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 134 | match.setWildcards(OFMatch.OFPFW_ALL); |
| 135 | Short matchInPort = flowEntryObj.getMatchInPort(); |
| 136 | if (matchInPort != null) { |
| 137 | match.setInputPort(matchInPort); |
| 138 | match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_IN_PORT); |
| 139 | } |
| 140 | Short matchEthernetFrameType = flowEntryObj.getMatchEthernetFrameType(); |
| 141 | if (matchEthernetFrameType != null) { |
| 142 | match.setDataLayerType(matchEthernetFrameType); |
| 143 | match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_TYPE); |
| 144 | } |
| 145 | String matchSrcIPv4Net = flowEntryObj.getMatchSrcIPv4Net(); |
| 146 | if (matchSrcIPv4Net != null) { |
| 147 | match.setFromCIDR(matchSrcIPv4Net, OFMatch.STR_NW_SRC); |
| 148 | } |
| 149 | String matchDstIPv4Net = flowEntryObj.getMatchDstIPv4Net(); |
| 150 | if (matchDstIPv4Net != null) { |
| 151 | match.setFromCIDR(matchDstIPv4Net, OFMatch.STR_NW_DST); |
| 152 | } |
| 153 | String matchSrcMac = flowEntryObj.getMatchSrcMac(); |
| 154 | if (matchSrcMac != null) { |
| 155 | match.setDataLayerSource(matchSrcMac); |
| 156 | match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_SRC); |
| 157 | } |
| 158 | String matchDstMac = flowEntryObj.getMatchDstMac(); |
| 159 | if (matchDstMac != null) { |
| 160 | match.setDataLayerDestination(matchDstMac); |
| 161 | match.setWildcards(match.getWildcards() & ~OFMatch.OFPFW_DL_DST); |
| 162 | } |
| 163 | log.debug("PAVPAV {}:", match.toString()); |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 164 | |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 165 | |
| 166 | // |
| 167 | // Fetch the actions |
| 168 | // |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 169 | List<OFAction> actions = new ArrayList<OFAction>(); |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 170 | Short actionOutputPort = flowEntryObj.getActionOutput(); |
| 171 | if (actionOutputPort != null) { |
| 172 | OFActionOutput action = new OFActionOutput(); |
| 173 | // XXX: The max length is hard-coded for now |
| 174 | action.setMaxLength((short)0xffff); |
| 175 | action.setPort(actionOutputPort); |
| 176 | actions.add(action); |
| 177 | } |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 178 | |
| 179 | fm.setIdleTimeout(FLOWMOD_DEFAULT_IDLE_TIMEOUT) |
| 180 | .setHardTimeout(FLOWMOD_DEFAULT_HARD_TIMEOUT) |
| 181 | .setBufferId(OFPacketOut.BUFFER_ID_NONE) |
| 182 | .setCookie(cookie) |
| 183 | .setCommand(flowModCommand) |
| 184 | .setMatch(match) |
| 185 | .setActions(actions) |
| 186 | .setLengthU(OFFlowMod.MINIMUM_LENGTH+OFActionOutput.MINIMUM_LENGTH); |
| 187 | // |
| 188 | // TODO: Set the following flag |
| 189 | // fm.setFlags(OFFlowMod.OFPFF_SEND_FLOW_REM); |
| 190 | // See method ForwardingBase::pushRoute() |
| 191 | // |
| 192 | try { |
| 193 | messageDamper.write(mySwitch, fm, null); |
| 194 | mySwitch.flush(); |
| 195 | flowEntryObj.setSwitchState("FE_SWITCH_UPDATED"); |
| 196 | if (userState.equals("FE_USER_DELETE")) { |
| 197 | // Delete the entry |
| 198 | IFlowPath flowObj = null; |
| 199 | flowObj = conn.utils().getFlowPathByFlowEntry(conn, |
| 200 | flowEntryObj); |
| 201 | if (flowObj != null) |
| 202 | log.debug("Found FlowPath to be deleted"); |
| 203 | else |
| 204 | log.debug("Did not find FlowPath to be deleted"); |
| 205 | flowObj.removeFlowEntry(flowEntryObj); |
| 206 | conn.utils().removeFlowEntry(conn, flowEntryObj); |
| 207 | |
| 208 | // Test whether the last flow entry |
| 209 | Iterable<IFlowEntry> tmpflowEntries = |
| 210 | flowObj.getFlowEntries(); |
| 211 | boolean found = false; |
| 212 | for (IFlowEntry tmpflowEntryObj : tmpflowEntries) { |
| 213 | found = true; |
| 214 | break; |
| 215 | } |
| 216 | if (! found) { |
| 217 | // Remove the Flow Path as well |
| 218 | conn.utils().removeFlowPath(conn, flowObj); |
| 219 | } |
| 220 | } |
| 221 | } catch (IOException e) { |
| 222 | log.error("Failure writing flow mod from network map", e); |
| 223 | } |
| 224 | } |
| 225 | conn.endTx(Transaction.COMMIT); |
| 226 | } |
| 227 | }; |
| 228 | final ScheduledFuture<?> readerHandle = |
| 229 | scheduler.scheduleAtFixedRate(reader, 3, 3, TimeUnit.SECONDS); |
| 230 | |
| 231 | @Override |
| 232 | public void init(String conf) { |
| 233 | conn = GraphDBConnection.getInstance(conf); |
| 234 | } |
| 235 | |
| 236 | public void finalize() { |
| 237 | close(); |
| 238 | } |
| 239 | |
| 240 | @Override |
| 241 | public void close() { |
| 242 | conn.close(); |
| 243 | } |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 244 | |
| 245 | @Override |
| 246 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 247 | Collection<Class<? extends IFloodlightService>> l = |
| 248 | new ArrayList<Class<? extends IFloodlightService>>(); |
| 249 | l.add(IFlowService.class); |
| 250 | return l; |
| 251 | } |
| 252 | |
| 253 | @Override |
| 254 | public Map<Class<? extends IFloodlightService>, IFloodlightService> |
| 255 | getServiceImpls() { |
| 256 | Map<Class<? extends IFloodlightService>, |
| 257 | IFloodlightService> m = |
| 258 | new HashMap<Class<? extends IFloodlightService>, |
| 259 | IFloodlightService>(); |
| 260 | m.put(IFlowService.class, this); |
| 261 | return m; |
| 262 | } |
| 263 | |
| 264 | @Override |
| 265 | public Collection<Class<? extends IFloodlightService>> |
| 266 | getModuleDependencies() { |
| 267 | Collection<Class<? extends IFloodlightService>> l = |
| 268 | new ArrayList<Class<? extends IFloodlightService>>(); |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 269 | l.add(IFloodlightProviderService.class); |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 270 | l.add(IRestApiService.class); |
| 271 | return l; |
| 272 | } |
| 273 | |
| 274 | @Override |
| 275 | public void init(FloodlightModuleContext context) |
| 276 | throws FloodlightModuleException { |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 277 | floodlightProvider = context.getServiceImpl(IFloodlightProviderService.class); |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 278 | restApi = context.getServiceImpl(IRestApiService.class); |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 279 | messageDamper = new OFMessageDamper(OFMESSAGE_DAMPER_CAPACITY, |
| 280 | EnumSet.of(OFType.FLOW_MOD), |
| 281 | OFMESSAGE_DAMPER_TIMEOUT); |
| 282 | // TODO: An ugly hack! |
| 283 | String conf = "/tmp/cassandra.titan"; |
| 284 | this.init(conf); |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | @Override |
| 288 | public void startUp(FloodlightModuleContext context) { |
| 289 | restApi.addRestletRoutable(new FlowWebRoutable()); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Add a flow. |
| 294 | * |
| 295 | * Internally, ONOS will automatically register the installer for |
| 296 | * receiving Flow Path Notifications for that path. |
| 297 | * |
| 298 | * @param flowPath the Flow Path to install. |
| 299 | * @param flowId the return-by-reference Flow ID as assigned internally. |
| 300 | * @return true on success, otherwise false. |
| 301 | */ |
| 302 | @Override |
| 303 | public boolean addFlow(FlowPath flowPath, FlowId flowId) { |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 304 | |
| 305 | // |
| 306 | // Assign the FlowEntry IDs |
| 307 | // TODO: This is an ugly hack! |
| 308 | // The Flow Entry IDs are set to 1000*FlowId + Index |
| 309 | // |
| 310 | int i = 1; |
| 311 | for (FlowEntry flowEntry : flowPath.dataPath().flowEntries()) { |
| 312 | long id = flowPath.flowId().value() * 1000 + i; |
| 313 | ++i; |
| 314 | flowEntry.setFlowEntryId(new FlowEntryId(id)); |
| 315 | } |
| 316 | |
| 317 | IFlowPath flowObj = null; |
| 318 | try { |
| 319 | if ((flowObj = conn.utils().searchFlowPath(conn, flowPath.flowId())) |
| 320 | != null) { |
| 321 | log.debug("Adding FlowPath with FlowId {}: found existing FlowPath", |
| 322 | flowPath.flowId().toString()); |
| 323 | } else { |
| 324 | flowObj = conn.utils().newFlowPath(conn); |
| 325 | log.debug("Adding FlowPath with FlowId {}: creating new FlowPath", |
| 326 | flowPath.flowId().toString()); |
| 327 | } |
| 328 | } catch (Exception e) { |
| 329 | // TODO: handle exceptions |
| 330 | conn.endTx(Transaction.ROLLBACK); |
| 331 | log.error(":addFlow FlowId:{} failed", |
| 332 | flowPath.flowId().toString()); |
| 333 | } |
| 334 | if (flowObj == null) |
| 335 | return false; |
| 336 | |
| 337 | // |
| 338 | // Set the Flow key: |
| 339 | // - flowId |
| 340 | // |
| 341 | flowObj.setFlowId(flowPath.flowId().toString()); |
| 342 | flowObj.setType("flow"); |
| 343 | |
| 344 | // |
| 345 | // Set the Flow attributes: |
| 346 | // - flowPath.installerId() |
| 347 | // - flowPath.dataPath().srcPort() |
| 348 | // - flowPath.dataPath().dstPort() |
| 349 | // |
| 350 | flowObj.setInstallerId(flowPath.installerId().toString()); |
| 351 | flowObj.setSrcSwitch(flowPath.dataPath().srcPort().dpid().toString()); |
| 352 | flowObj.setSrcPort(flowPath.dataPath().srcPort().port().value()); |
| 353 | flowObj.setDstSwitch(flowPath.dataPath().dstPort().dpid().toString()); |
| 354 | flowObj.setDstPort(flowPath.dataPath().dstPort().port().value()); |
| 355 | |
| 356 | // Flow edges: |
| 357 | // HeadFE |
| 358 | |
| 359 | |
| 360 | // |
| 361 | // Flow Entries: |
| 362 | // flowPath.dataPath().flowEntries() |
| 363 | // |
| 364 | for (FlowEntry flowEntry : flowPath.dataPath().flowEntries()) { |
| 365 | IFlowEntry flowEntryObj = null; |
| 366 | boolean found = false; |
| 367 | try { |
| 368 | if ((flowEntryObj = conn.utils().searchFlowEntry(conn, flowEntry.flowEntryId())) != null) { |
| 369 | log.debug("Adding FlowEntry with FlowEntryId {}: found existing FlowEntry", |
| 370 | flowEntry.flowEntryId().toString()); |
| 371 | found = true; |
| 372 | } else { |
| 373 | flowEntryObj = conn.utils().newFlowEntry(conn); |
| 374 | log.debug("Adding FlowEntry with FlowEntryId {}: creating new FlowEntry", |
| 375 | flowEntry.flowEntryId().toString()); |
| 376 | } |
| 377 | } catch (Exception e) { |
| 378 | // TODO: handle exceptions |
| 379 | conn.endTx(Transaction.ROLLBACK); |
| 380 | log.error(":addFlow FlowEntryId:{} failed", |
| 381 | flowEntry.flowEntryId().toString()); |
| 382 | } |
| 383 | if (flowEntryObj == null) |
| 384 | return false; |
| 385 | |
| 386 | // |
| 387 | // Set the Flow Entry key: |
| 388 | // - flowEntry.flowEntryId() |
| 389 | // |
| 390 | flowEntryObj.setFlowEntryId(flowEntry.flowEntryId().toString()); |
| 391 | flowEntryObj.setType("flow_entry"); |
| 392 | |
| 393 | // |
| 394 | // Set the Flow Entry attributes: |
| 395 | // - flowEntry.flowEntryMatch() |
| 396 | // - flowEntry.flowEntryActions() |
| 397 | // - flowEntry.dpid() |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 398 | // - flowEntry.flowEntryUserState() |
| 399 | // - flowEntry.flowEntrySwitchState() |
| 400 | // - flowEntry.flowEntryErrorState() |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 401 | // - flowEntry.matchInPort() |
| 402 | // - flowEntry.matchEthernetFrameType() |
| 403 | // - flowEntry.matchSrcIPv4Net() |
| 404 | // - flowEntry.matchDstIPv4Net() |
| 405 | // - flowEntry.matchSrcMac() |
| 406 | // - flowEntry.matchDstMac() |
| 407 | // - flowEntry.actionOutput() |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 408 | // |
| 409 | flowEntryObj.setSwitchDpid(flowEntry.dpid().toString()); |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 410 | if (flowEntry.flowEntryMatch().matchInPort()) |
| 411 | flowEntryObj.setMatchInPort(flowEntry.flowEntryMatch().inPort().value()); |
| 412 | if (flowEntry.flowEntryMatch().matchEthernetFrameType()) |
| 413 | flowEntryObj.setMatchEthernetFrameType(flowEntry.flowEntryMatch().ethernetFrameType()); |
| 414 | if (flowEntry.flowEntryMatch().matchSrcIPv4Net()) |
| 415 | flowEntryObj.setMatchSrcIPv4Net(flowEntry.flowEntryMatch().srcIPv4Net().toString()); |
| 416 | if (flowEntry.flowEntryMatch().matchDstIPv4Net()) |
| 417 | flowEntryObj.setMatchDstIPv4Net(flowEntry.flowEntryMatch().dstIPv4Net().toString()); |
| 418 | if (flowEntry.flowEntryMatch().matchSrcMac()) |
| 419 | flowEntryObj.setMatchSrcMac(flowEntry.flowEntryMatch().srcMac().toString()); |
| 420 | if (flowEntry.flowEntryMatch().matchDstMac()) |
| 421 | flowEntryObj.setMatchDstMac(flowEntry.flowEntryMatch().dstMac().toString()); |
| 422 | |
| 423 | for (FlowEntryAction fa : flowEntry.flowEntryActions()) { |
| 424 | if (fa.actionOutput() != null) |
| 425 | flowEntryObj.setActionOutput(fa.actionOutput().port().value()); |
| 426 | } |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 427 | // TODO: Hacks with hard-coded state names! |
| 428 | if (found) |
| 429 | flowEntryObj.setUserState("FE_USER_MODIFY"); |
| 430 | else |
| 431 | flowEntryObj.setUserState("FE_USER_ADD"); |
| 432 | flowEntryObj.setSwitchState("FE_SWITCH_NOT_UPDATED"); |
| 433 | // |
Pavlin Radoslavov | ede9758 | 2013-03-08 18:57:28 -0800 | [diff] [blame] | 434 | // TODO: Take care of the FlowEntryMatch, FlowEntryAction set, |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 435 | // and FlowEntryErrorState. |
| 436 | // |
| 437 | |
| 438 | // Flow Entries edges: |
| 439 | // Flow |
| 440 | // NextFE |
| 441 | // InPort |
| 442 | // OutPort |
| 443 | // Switch |
| 444 | if (! found) |
| 445 | flowObj.addFlowEntry(flowEntryObj); |
| 446 | } |
| 447 | conn.endTx(Transaction.COMMIT); |
| 448 | |
| 449 | // |
| 450 | // TODO: We need a proper Flow ID allocation mechanism. |
| 451 | // |
| 452 | flowId.setValue(flowPath.flowId().value()); |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 453 | return true; |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * Delete a previously added flow. |
| 458 | * |
| 459 | * @param flowId the Flow ID of the flow to delete. |
| 460 | * @return true on success, otherwise false. |
| 461 | */ |
| 462 | @Override |
| 463 | public boolean deleteFlow(FlowId flowId) { |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 464 | IFlowPath flowObj = null; |
| 465 | // |
| 466 | // We just mark the entries for deletion, |
| 467 | // and let the switches remove each individual entry after |
| 468 | // it has been removed from the switches. |
| 469 | // |
| 470 | try { |
| 471 | if ((flowObj = conn.utils().searchFlowPath(conn, flowId)) |
| 472 | != null) { |
| 473 | log.debug("Deleting FlowPath with FlowId {}: found existing FlowPath", |
| 474 | flowId.toString()); |
| 475 | } else { |
| 476 | log.debug("Deleting FlowPath with FlowId {}: FlowPath not found", |
| 477 | flowId.toString()); |
| 478 | } |
| 479 | } catch (Exception e) { |
| 480 | // TODO: handle exceptions |
| 481 | conn.endTx(Transaction.ROLLBACK); |
| 482 | log.error(":deleteFlow FlowId:{} failed", flowId.toString()); |
| 483 | } |
| 484 | if (flowObj == null) |
| 485 | return true; // OK: No such flow |
| 486 | |
| 487 | // |
| 488 | // Find and mark for deletion all Flow Entries |
| 489 | // |
| 490 | Iterable<IFlowEntry> flowEntries = flowObj.getFlowEntries(); |
| 491 | boolean empty = true; // TODO: an ugly hack |
| 492 | for (IFlowEntry flowEntryObj : flowEntries) { |
| 493 | empty = false; |
| 494 | // flowObj.removeFlowEntry(flowEntryObj); |
| 495 | // conn.utils().removeFlowEntry(conn, flowEntryObj); |
| 496 | flowEntryObj.setUserState("FE_USER_DELETE"); |
| 497 | flowEntryObj.setSwitchState("FE_SWITCH_NOT_UPDATED"); |
| 498 | } |
| 499 | // Remove from the database empty flows |
| 500 | if (empty) |
| 501 | conn.utils().removeFlowPath(conn, flowObj); |
| 502 | conn.endTx(Transaction.COMMIT); |
| 503 | |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 504 | return true; |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Get a previously added flow. |
| 509 | * |
| 510 | * @param flowId the Flow ID of the flow to get. |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 511 | * @return the Flow Path if found, otherwise null. |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 512 | */ |
| 513 | @Override |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 514 | public FlowPath getFlow(FlowId flowId) { |
| 515 | IFlowPath flowObj = null; |
| 516 | try { |
| 517 | if ((flowObj = conn.utils().searchFlowPath(conn, flowId)) |
| 518 | != null) { |
| 519 | log.debug("Get FlowPath with FlowId {}: found existing FlowPath", |
| 520 | flowId.toString()); |
| 521 | } else { |
| 522 | log.debug("Get FlowPath with FlowId {}: FlowPath not found", |
| 523 | flowId.toString()); |
| 524 | } |
| 525 | } catch (Exception e) { |
| 526 | // TODO: handle exceptions |
| 527 | conn.endTx(Transaction.ROLLBACK); |
| 528 | log.error(":getFlow FlowId:{} failed", flowId.toString()); |
| 529 | } |
| 530 | if (flowObj == null) |
| 531 | return null; // Flow not found |
| 532 | |
| 533 | // |
| 534 | // Extract the Flow state |
| 535 | // |
Pavlin Radoslavov | 706df05 | 2013-03-06 10:49:07 -0800 | [diff] [blame] | 536 | FlowPath flowPath = extractFlowPath(flowObj); |
| 537 | conn.endTx(Transaction.COMMIT); |
| 538 | |
| 539 | return flowPath; |
| 540 | } |
| 541 | |
| 542 | /** |
| 543 | * Get all previously added flows by a specific installer for a given |
| 544 | * data path endpoints. |
| 545 | * |
| 546 | * @param installerId the Caller ID of the installer of the flow to get. |
| 547 | * @param dataPathEndpoints the data path endpoints of the flow to get. |
| 548 | * @return the Flow Paths if found, otherwise null. |
| 549 | */ |
| 550 | @Override |
| 551 | public ArrayList<FlowPath> getAllFlows(CallerId installerId, |
| 552 | DataPathEndpoints dataPathEndpoints) { |
| 553 | // |
| 554 | // TODO: The implementation below is not optimal: |
| 555 | // We fetch all flows, and then return only the subset that match |
| 556 | // the query conditions. |
| 557 | // We should use the appropriate Titan/Gremlin query to filter-out |
| 558 | // the flows as appropriate. |
| 559 | // |
| 560 | ArrayList<FlowPath> allFlows = getAllFlows(); |
| 561 | |
| 562 | if (allFlows == null) { |
| 563 | log.debug("Get FlowPaths for installerId{} and dataPathEndpoints{}: no FlowPaths found", installerId, dataPathEndpoints); |
| 564 | return null; |
| 565 | } |
| 566 | |
| 567 | ArrayList<FlowPath> flowPaths = new ArrayList<FlowPath>(); |
| 568 | for (FlowPath flow : allFlows) { |
| 569 | // |
| 570 | // TODO: String-based comparison is sub-optimal. |
| 571 | // We are using it for now to save us the extra work of |
Pavlin Radoslavov | c4e76a6 | 2013-03-06 10:52:41 -0800 | [diff] [blame] | 572 | // implementing the "equals()" and "hashCode()" methods. |
Pavlin Radoslavov | 706df05 | 2013-03-06 10:49:07 -0800 | [diff] [blame] | 573 | // |
| 574 | if (! flow.installerId().toString().equals(installerId.toString())) |
| 575 | continue; |
| 576 | if (! flow.dataPath().srcPort().toString().equals(dataPathEndpoints.srcPort().toString())) { |
| 577 | continue; |
| 578 | } |
| 579 | if (! flow.dataPath().dstPort().toString().equals(dataPathEndpoints.dstPort().toString())) { |
| 580 | continue; |
| 581 | } |
| 582 | flowPaths.add(flow); |
| 583 | } |
| 584 | |
| 585 | if (flowPaths.isEmpty()) { |
| 586 | log.debug("Get FlowPaths for installerId{} and dataPathEndpoints{}: no FlowPaths found", installerId, dataPathEndpoints); |
| 587 | flowPaths = null; |
| 588 | } else { |
| 589 | log.debug("Get FlowPaths for installerId{} and dataPathEndpoints{}: FlowPaths are found", installerId, dataPathEndpoints); |
| 590 | } |
| 591 | |
| 592 | return flowPaths; |
| 593 | } |
| 594 | |
| 595 | /** |
| 596 | * Get all installed flows by all installers for given data path endpoints. |
| 597 | * |
| 598 | * @param dataPathEndpoints the data path endpoints of the flows to get. |
| 599 | * @return the Flow Paths if found, otherwise null. |
| 600 | */ |
| 601 | @Override |
| 602 | public ArrayList<FlowPath> getAllFlows(DataPathEndpoints dataPathEndpoints) { |
| 603 | // |
| 604 | // TODO: The implementation below is not optimal: |
| 605 | // We fetch all flows, and then return only the subset that match |
| 606 | // the query conditions. |
| 607 | // We should use the appropriate Titan/Gremlin query to filter-out |
| 608 | // the flows as appropriate. |
| 609 | // |
| 610 | ArrayList<FlowPath> allFlows = getAllFlows(); |
| 611 | |
| 612 | if (allFlows == null) { |
| 613 | log.debug("Get FlowPaths for dataPathEndpoints{}: no FlowPaths found", dataPathEndpoints); |
| 614 | return null; |
| 615 | } |
| 616 | |
| 617 | ArrayList<FlowPath> flowPaths = new ArrayList<FlowPath>(); |
| 618 | for (FlowPath flow : allFlows) { |
| 619 | // |
| 620 | // TODO: String-based comparison is sub-optimal. |
| 621 | // We are using it for now to save us the extra work of |
Pavlin Radoslavov | c4e76a6 | 2013-03-06 10:52:41 -0800 | [diff] [blame] | 622 | // implementing the "equals()" and "hashCode()" methods. |
Pavlin Radoslavov | 706df05 | 2013-03-06 10:49:07 -0800 | [diff] [blame] | 623 | // |
| 624 | if (! flow.dataPath().srcPort().toString().equals(dataPathEndpoints.srcPort().toString())) { |
| 625 | continue; |
| 626 | } |
| 627 | if (! flow.dataPath().dstPort().toString().equals(dataPathEndpoints.dstPort().toString())) { |
| 628 | continue; |
| 629 | } |
| 630 | flowPaths.add(flow); |
| 631 | } |
| 632 | |
| 633 | if (flowPaths.isEmpty()) { |
| 634 | log.debug("Get FlowPaths for dataPathEndpoints{}: no FlowPaths found", dataPathEndpoints); |
| 635 | flowPaths = null; |
| 636 | } else { |
| 637 | log.debug("Get FlowPaths for dataPathEndpoints{}: FlowPaths are found", dataPathEndpoints); |
| 638 | } |
| 639 | |
| 640 | return flowPaths; |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * Get all installed flows by all installers. |
| 645 | * |
| 646 | * @return the Flow Paths if found, otherwise null. |
| 647 | */ |
| 648 | @Override |
| 649 | public ArrayList<FlowPath> getAllFlows() { |
| 650 | Iterable<IFlowPath> flowPathsObj = null; |
| 651 | |
| 652 | try { |
| 653 | if ((flowPathsObj = conn.utils().getAllFlowPaths(conn)) != null) { |
| 654 | log.debug("Get all FlowPaths: found FlowPaths"); |
| 655 | } else { |
| 656 | log.debug("Get all FlowPaths: no FlowPaths found"); |
| 657 | } |
| 658 | } catch (Exception e) { |
| 659 | // TODO: handle exceptions |
| 660 | conn.endTx(Transaction.ROLLBACK); |
| 661 | log.error(":getAllFlowPaths failed"); |
| 662 | } |
| 663 | if ((flowPathsObj == null) || (flowPathsObj.iterator().hasNext() == false)) |
| 664 | return null; // No Flows found |
| 665 | |
| 666 | ArrayList<FlowPath> flowPaths = new ArrayList<FlowPath>(); |
| 667 | for (IFlowPath flowObj : flowPathsObj) { |
| 668 | // |
| 669 | // Extract the Flow state |
| 670 | // |
| 671 | FlowPath flowPath = extractFlowPath(flowObj); |
| 672 | flowPaths.add(flowPath); |
| 673 | } |
| 674 | |
| 675 | conn.endTx(Transaction.COMMIT); |
| 676 | |
| 677 | return flowPaths; |
| 678 | } |
| 679 | |
| 680 | /** |
| 681 | * Extract Flow Path State from a Titan Database Object @ref IFlowPath. |
| 682 | * |
| 683 | * @param flowObj the object to extract the Flow Path State from. |
| 684 | * @return the extracted Flow Path State. |
| 685 | */ |
| 686 | private FlowPath extractFlowPath(IFlowPath flowObj) { |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 687 | FlowPath flowPath = new FlowPath(); |
Pavlin Radoslavov | 706df05 | 2013-03-06 10:49:07 -0800 | [diff] [blame] | 688 | |
| 689 | // |
| 690 | // Extract the Flow state |
| 691 | // |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 692 | flowPath.setFlowId(new FlowId(flowObj.getFlowId())); |
| 693 | flowPath.setInstallerId(new CallerId(flowObj.getInstallerId())); |
| 694 | flowPath.dataPath().srcPort().setDpid(new Dpid(flowObj.getSrcSwitch())); |
| 695 | flowPath.dataPath().srcPort().setPort(new Port(flowObj.getSrcPort())); |
| 696 | flowPath.dataPath().dstPort().setDpid(new Dpid(flowObj.getDstSwitch())); |
| 697 | flowPath.dataPath().dstPort().setPort(new Port(flowObj.getDstPort())); |
| 698 | |
| 699 | // |
| 700 | // Extract all Flow Entries |
| 701 | // |
| 702 | Iterable<IFlowEntry> flowEntries = flowObj.getFlowEntries(); |
| 703 | for (IFlowEntry flowEntryObj : flowEntries) { |
| 704 | FlowEntry flowEntry = new FlowEntry(); |
| 705 | flowEntry.setFlowEntryId(new FlowEntryId(flowEntryObj.getFlowEntryId())); |
| 706 | flowEntry.setDpid(new Dpid(flowEntryObj.getSwitchDpid())); |
Pavlin Radoslavov | e2f0de8 | 2013-03-12 01:39:30 -0700 | [diff] [blame^] | 707 | |
| 708 | // |
| 709 | // Extract the match conditions |
| 710 | // |
| 711 | FlowEntryMatch match = new FlowEntryMatch(); |
| 712 | Short matchInPort = flowEntryObj.getMatchInPort(); |
| 713 | if (matchInPort != null) |
| 714 | match.enableInPort(new Port(matchInPort)); |
| 715 | Short matchEthernetFrameType = flowEntryObj.getMatchEthernetFrameType(); |
| 716 | if (matchEthernetFrameType != null) |
| 717 | match.enableEthernetFrameType(matchEthernetFrameType); |
| 718 | String matchSrcIPv4Net = flowEntryObj.getMatchSrcIPv4Net(); |
| 719 | if (matchSrcIPv4Net != null) |
| 720 | match.enableSrcIPv4Net(new IPv4Net(matchSrcIPv4Net)); |
| 721 | String matchDstIPv4Net = flowEntryObj.getMatchDstIPv4Net(); |
| 722 | if (matchDstIPv4Net != null) |
| 723 | match.enableDstIPv4Net(new IPv4Net(matchDstIPv4Net)); |
| 724 | String matchSrcMac = flowEntryObj.getMatchSrcMac(); |
| 725 | if (matchSrcMac != null) |
| 726 | match.enableSrcMac(MACAddress.valueOf(matchSrcMac)); |
| 727 | String matchDstMac = flowEntryObj.getMatchDstMac(); |
| 728 | if (matchDstMac != null) |
| 729 | match.enableDstMac(MACAddress.valueOf(matchDstMac)); |
| 730 | flowEntry.setFlowEntryMatch(match); |
| 731 | |
| 732 | // |
| 733 | // Extract the actions |
| 734 | // |
| 735 | ArrayList<FlowEntryAction> actions = new ArrayList<FlowEntryAction>(); |
| 736 | Short actionOutputPort = flowEntryObj.getActionOutput(); |
| 737 | if (actionOutputPort != null) { |
| 738 | FlowEntryAction action = new FlowEntryAction(); |
| 739 | action.setActionOutput(new Port(actionOutputPort)); |
| 740 | actions.add(action); |
| 741 | } |
| 742 | flowEntry.setFlowEntryActions(actions); |
| 743 | |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 744 | String userState = flowEntryObj.getUserState(); |
| 745 | flowEntry.setFlowEntryUserState(FlowEntryUserState.valueOf(userState)); |
| 746 | String switchState = flowEntryObj.getSwitchState(); |
| 747 | flowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.valueOf(switchState)); |
| 748 | // |
Pavlin Radoslavov | ede9758 | 2013-03-08 18:57:28 -0800 | [diff] [blame] | 749 | // TODO: Take care of the FlowEntryMatch, FlowEntryAction set, |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 750 | // and FlowEntryErrorState. |
| 751 | // |
| 752 | flowPath.dataPath().flowEntries().add(flowEntry); |
| 753 | } |
Pavlin Radoslavov | b6f5354 | 2013-03-01 16:02:14 -0800 | [diff] [blame] | 754 | |
| 755 | return flowPath; |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 756 | } |
Pavlin Radoslavov | 9e5344c | 2013-02-18 09:58:30 -0800 | [diff] [blame] | 757 | } |