src/du_app/du_mgr_msg_router.c

   1 /*******************************************************************************
   2 ################################################################################
   3 #   Copyright (c) [2017-2019] [Radisys]                                        #
   4 #                                                                              #
   5 #   Licensed under the Apache License, Version 2.0 (the "License");            #
   6 #   you may not use this file except in compliance with the License.           #
   7 #   You may obtain a copy of the License at                                    #
   8 #                                                                              #
   9 #       http://www.apache.org/licenses/LICENSE-2.0                             #
  10 #                                                                              #
  11 #   Unless required by applicable law or agreed to in writing, software        #
  12 #   distributed under the License is distributed on an "AS IS" BASIS,          #
  13 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
  14 #   See the License for the specific language governing permissions and        #
  15 #   limitations under the License.                                             #
  16 ################################################################################
  17  *******************************************************************************/
  18 /* File : du_mgr_msg_router.c */
  19 /* This file contains message handling functionality for DU APP */
  20 #include "common_def.h"
  21 #include "du_tmr.h"
  22 #include "lrg.h"
  23 #include "legtp.h"
  24 #include "lsctp.h"
  25 #include "legtp.h"
  26 #include "lkw.h"
  27 #include "kwu.h"
  28 #include "lrg.x"
  29 #include "lkw.x"
  30 #include "kwu.x"
  31 #include "du_app_mac_inf.h"
  32 #include "du_app_rlc_inf.h"
  33 #include "du_e2ap_mgr.h"
  34 #include "du_e2ap_msg_hdl.h"
  35 #include "du_cfg.h"
  36 #include "du_mgr.h"
  37 #include "E2AP-PDU.h"
  38 #include "du_sctp.h"
  39 #include "F1AP-PDU.h"
  40 #include "du_f1ap_msg_hdl.h"
  41 #include "du_app_mac_inf.h"
  42 #include "du_ue_mgr.h"
  43 #include "du_utils.h"
  44
  45 uint8_t unpackRlcConfigCfm(RlcConfigCfm func,Pst *pst, Buffer *mBuf);
  46 uint8_t cmUnpkLkwCntrlCfm(LkwCntrlCfm func,Pst *pst, Buffer *mBuf);
  47 uint8_t cmUnpkLrgCfgCfm(LrgCfgCfm func,Pst *pst, Buffer *mBuf);
  48 uint8_t cmUnpkKwuDatInd(KwuDatInd func,Pst *pst, Buffer *mBuf);
  49 uint8_t cmUnpkLrgSchCfgCfm(LrgSchCfgCfm func,Pst *pst,Buffer *mBuf);
  50 /**************************************************************************
  51  * @brief Task Initiation callback function.
  52  *
  53  * @details
  54  *
  55  *     Function : duActvInit
  56  *
  57  *     Functionality:
  58  *             This function is supplied as one of parameters during DU APP's
  59  *             task registration. SSI will invoke this function once, after
  60  *             it creates and attaches this TAPA Task to a system task.
  61  *
  62  * @param[in]  Ent entity, the entity ID of this task.
  63  * @param[in]  Inst inst, the instance ID of this task.
  64  * @param[in]  Region region, the region ID registered for memory
  65  *              usage of this task.
  66  * @param[in]  Reason reason.
  67  * @return ROK     - success
  68  *         RFAILED - failure
  69  ***************************************************************************/
  70 uint8_t duActvInit(Ent entity, Inst inst, Region region, Reason reason)
  71 {
  72    uint8_t id;
  73
  74    memset(&duCb, 0, sizeof(DuCb));
  75
  76    duCb.init.procId  = ODU_GET_PROCID();
  77    duCb.init.ent     = entity;
  78    duCb.init.inst    = inst;
  79    duCb.init.region  = region;
  80    duCb.init.reason  = reason;
  81    duCb.init.cfgDone = FALSE;
  82    duCb.init.pool    = DU_POOL;
  83    duCb.init.acnt    = FALSE;
  84    duCb.init.trc     = FALSE;
  85    duCb.init.usta    = TRUE;
  86    duCb.mem.region   = DFLT_REGION;
  87    duCb.mem.pool     = DU_POOL;
  88
  89    duCb.f1Status     = FALSE;
  90    duCb.e2Status     = FALSE;
  91
  92    for(id = 0; id < MAX_NUM_CELL; id ++)
  93    {
  94       duCb.cfgCellLst[id] = NULL;
  95       duCb.actvCellLst[id] = NULL;
  96    }
  97    duCb.numUe = 0;
  98    memset(duCb.ueCcchCtxt, 0, MAX_NUM_UE * sizeof(UeCcchCtxt));
  99    duCb.numCfgCells  = 0;
 100    duCb.numActvCells = 0;
 101    duCb.gnbDuUeF1apIdGenerator = 0;
 102    cmLListInit(&duCb.reservedF1apPduList);
 103    ODU_SET_PROC_ID(DU_PROC);
 104
 105    return ROK;
 106
 107 }
 108
 109 #ifdef CALL_FLOW_DEBUG_LOG
 110 /**************************************************************************
 111 * @brief Function prints the src dest and msg reached to egtp.
 112 *
 113 * @details
 114 *
 115 *      Function : callFlowduActvTsk
 116 *
 117 *      Functionality:
 118 *           Function prints the src dest and msg reached to egtp.
 119 *
 120 * @param[in]  Pst     *pst, Post structure of the primitive.
 121 *
 122 * @return void
 123 *
 124 +***************************************************************************/
 125
 126 void callFlowduActvTsk(Pst *pst)
 127 {
 128    char sourceTask[50];
 129    char destTask[50]="ENTDUAPP";
 130    char message[100];
 131
 132    switch(pst->srcEnt)
 133    {
 134       case ENTDUAPP:
 135          {
 136             strcpy(sourceTask,"ENTDUAPP");
 137             switch(pst->event)
 138             {
 139                case EVTCFG:
 140                   {
 141                      strcpy(message,"EVTCFG");
 142                      break;
 143                   }
 144                default:
 145                   {
 146                      strcpy(message,"Invalid Event");
 147                      break;
 148                   }
 149             }
 150
 151             break;
 152          }
 153       case ENTRLC:
 154          {
 155             strcpy(sourceTask,"ENTRLC");
 156             switch(pst->event)
 157             {
 158                case LKW_EVT_CFG_CFM:
 159                   {
 160                      strcpy(message,"LKW_EVT_CFG_CFM");
 161                      break;
 162                   }
 163                case LKW_EVT_CNTRL_CFM:
 164                   {
 165                      strcpy(message,"LKW_EVT_CNTRL_CFM");
 166                      break;
 167                   }
 168                case LKW_EVT_STA_IND:
 169                   {
 170                      strcpy(message,"LKW_EVT_STA_IND");
 171                      break;
 172                   }
 173                case EVENT_RLC_UE_CREATE_RSP:
 174                   {
 175                      strcpy(message,"EVENT_RLC_UE_CREATE_RSP");
 176                      break;
 177                   }
 178                case EVENT_RLC_UE_RECONFIG_RSP:
 179                   {
 180                      strcpy(message,"EVENT_RLC_UE_RECONFIG_RSP");
 181                      break;
 182                   }
 183                case EVENT_RLC_UE_DELETE_RSP:
 184                   {
 185                      strcpy(message,"EVENT_RLC_UE_DELETE_RSP");
 186                      break;
 187                   }
 188                case EVENT_UL_RRC_MSG_TRANS_TO_DU:
 189                   {
 190                      strcpy(message,"EVENT_UL_RRC_MSG_TRANS_TO_DU");
 191                      break;
 192                   }
 193                case EVENT_RRC_DELIVERY_MSG_TRANS_TO_DU:
 194                   {
 195                      strcpy(message,"EVENT_RRC_DELIVERY_MSG_TRANS_TO_DU");
 196                      break;
 197                   }
 198                case EVENT_DL_RRC_MSG_RSP_TO_DU:
 199                   {
 200                      strcpy(message,"EVENT_DL_RRC_MSG_RSP_TO_DU");
 201                      break;
 202                   }
 203                case EVENT_UL_USER_DATA_TRANS_TO_DU:
 204                   {
 205                      strcpy(message,"EVENT_UL_USER_DATA_TRANS_TO_DU");
 206                      break;
 207                   }
 208                default:
 209                   {
 210                      strcpy(message,"Invalid Event");
 211                   }
 212             }
 213             break;
 214          }
 215       case ENTMAC:
 216          {
 217             strcpy(sourceTask,"ENTMAC");
 218             switch(pst->event)
 219             {
 220                case EVTCFG:
 221                   {
 222                      strcpy(message,"EVTCFG");
 223                      break;
 224                   }
 225                case EVTLRGCFGCFM:
 226                   {
 227                      strcpy(message,"EVTLRGCFGCFM");
 228                      break;
 229                   }
 230                case EVTMACSCHGENCFGCFM:
 231                   {
 232                      strcpy(message,"EVTMACSCHGENCFGCFM");
 233                      break;
 234                   }
 235                case EVENT_MAC_CELL_CONFIG_CFM:
 236                   {
 237                      strcpy(message,"EVENT_MAC_CELL_CONFIG_CFM");
 238                      break;
 239                   }
 240                case EVENT_MAC_CELL_UP_IND:
 241                   {
 242                      strcpy(message,"EVENT_MAC_CELL_UP_IND");
 243                      break;
 244                   }
 245                case EVENT_MAC_SLOT_IND:
 246                   {
 247                      strcpy(message,"EVENT_MAC_SLOT_IND");
 248                      break;
 249                   }
 250                case EVENT_MAC_STOP_IND:
 251                   {
 252                      strcpy(message,"EVENT_MAC_STOP_IND");
 253                      break;
 254                   }
 255                case EVENT_MAC_UL_CCCH_IND:
 256                   {
 257                      strcpy(message,"EVENT_MAC_UL_CCCH_IND");
 258                      break;
 259                   }
 260                case EVENT_MAC_UE_CREATE_RSP:
 261                   {
 262                      strcpy(message,"EVENT_MAC_UE_CREATE_RSP");
 263                      break;
 264                   }
 265                case EVENT_MAC_UE_RECONFIG_RSP:
 266                   {
 267                      strcpy(message,"EVENT_MAC_UE_RECONFIG_RSP");
 268                      break;
 269                   }
 270                case EVENT_MAC_UE_DELETE_RSP:
 271                   {
 272                      strcpy(message,"EVENT_MAC_UE_DELETE_RSP");
 273                      break;
 274                   }
 275                case EVENT_MAC_CELL_DELETE_RSP:
 276                   {
 277                      strcpy(message,"EVENT_MAC_CELL_DELETE_RSP");
 278                      break;
 279                   }
 280                case EVENT_MAC_SLICE_CFG_RSP:
 281                   {
 282                      strcpy(message,"EVENT_MAC_SLICE_CFG_RSP");
 283                      break;
 284                   }
 285                case EVENT_MAC_SLICE_RECFG_RSP:
 286                   {
 287                      strcpy(message,"EVENT_MAC_SLICE_RECFG_RSP");
 288                      break;
 289                   }
 290                case EVENT_MAC_STATISTICS_RSP:
 291                   {
 292                      strcpy(message,"EVENT_MAC_STATISTICS_RSP");
 293                      break;
 294                   }
 295                case EVENT_MAC_STATISTICS_IND:
 296                   {
 297                      strcpy(message,"EVENT_MAC_STATISTICS_IND");
 298                      break;
 299                   }
 300                default:
 301                   {
 302                      strcpy(message,"Invalid Event");
 303                      break;
 304                   }
 305             }
 306
 307             break;
 308          }
 309       case ENTSCTP:
 310          {
 311             strcpy(sourceTask,"ENTSCTP");
 312             switch(pst->event)
 313             {
 314                case EVENT_CU_DATA:
 315                   {
 316                      strcpy(message,"EVENT_CU_DATA");
 317                      break;
 318                   }
 319                case EVENT_SCTP_NTFY:
 320                   {
 321                      strcpy(message,"EVENT_SCTP_NTFY");
 322                      break;
 323                   }
 324                case EVENT_RIC_DATA:
 325                   {
 326                      strcpy(message,"EVENT_RIC_DATA");
 327                      break;
 328                   }
 329                default:
 330                   {
 331                      strcpy(message,"Invalid Event");
 332                      break;
 333                   }
 334
 335             }
 336             break;
 337          }
 338       case ENTEGTP:
 339          {
 340             strcpy(sourceTask,"ENTEGTP");
 341             switch(pst->event)
 342             {
 343                case EVTCFGCFM:
 344                   {
 345                      strcpy(message,"EVTCFGCFM");
 346                      break;
 347                   }
 348                case EVTSRVOPENCFM:
 349                   {
 350                      strcpy(message,"EVTSRVOPENCFM");
 351                      break;
 352                   }
 353                case EVTTNLMGMTCFM:
 354                   {
 355                      strcpy(message,"EVTTNLMGMTCFM");
 356                      break;
 357                   }
 358                default:
 359                   {
 360                      strcpy(message,"Invalid Event");
 361                      break;
 362                   }
 363             }
 364             break;
 365          }
 366       default:
 367          {
 368             strcpy(sourceTask,"Invalid Source Entity Id");
 369             break;
 370          }
 371    }
 372    DU_LOG("\nCall Flow: %s -> %s : %s\n", sourceTask, destTask, message);
 373 }
 374 #endif
 375
 376 /**************************************************************************
 377  * @brief Task Activation callback function.
 378  *
 379  * @details
 380  *
 381  *      Function : duActvTsk
 382  *
 383  *      Functionality:
 384  *           Primitives invoked by DU APP's users/providers through
 385  *           a loosely coupled interface arrive here by means of
 386  *           SSI's message handling. This API is registered with
 387  *           SSI during the Task Registration of DU APP.
 388  *
 389  * @param[in]  Pst     *pst, Post structure of the primitive.
 390  * @param[in]  Buffer *mBuf, Packed primitive parameters in the
 391  *  buffer.
 392  * @return ROK     - success
 393  *         RFAILED - failure
 394  *
 395  ***************************************************************************/
 396 uint8_t duActvTsk(Pst *pst, Buffer *mBuf)
 397 {
 398    uint8_t ret = ROK;
 399
 400 #ifdef CALL_FLOW_DEBUG_LOG
 401    callFlowduActvTsk(pst);
 402 #endif
 403
 404    switch(pst->srcEnt)
 405    {
 406       case ENTDUAPP:
 407          {
 408             switch(pst->event)
 409             {
 410                case EVTCFG:
 411                   {
 412                      DU_LOG("\n****** Received initial configs at DU APP ******\n");
 413                      duProcCfgComplete();
 414                      ODU_PUT_MSG_BUF(mBuf);
 415                      break;
 416                   }
 417                default:
 418                   {
 419                      DU_LOG("\nERROR  -->  DU_APP : Invalid event received at duActvTsk from ENTDUAPP");
 420                      ODU_PUT_MSG_BUF(mBuf);
 421                      ret = RFAILED;
 422                   }
 423             }
 424
 425             break;
 426          }
 427       case ENTRLC:
 428          {
 429             switch(pst->event)
 430             {
 431                case LKW_EVT_CFG_CFM:
 432                   {
 433                      ret = unpackRlcConfigCfm(DuHdlRlcCfgComplete, pst, mBuf);
 434                      break;
 435                   }
 436                case LKW_EVT_CNTRL_CFM:
 437                   {
 438                      ret = cmUnpkLkwCntrlCfm(duHdlRlcCntrlCfgComplete, pst, mBuf);
 439                      break;
 440                   }
 441                case LKW_EVT_STA_IND:
 442                   {
 443                      break;
 444                   }
 445                case EVENT_RLC_UE_CREATE_RSP:
 446                   {
 447                      ret = unpackRlcUeCreateRsp(DuProcRlcUeCreateRsp, pst, mBuf);
 448                      break;
 449                   }
 450                case EVENT_RLC_UE_RECONFIG_RSP:
 451                   {
 452                      ret = unpackRlcUeReconfigRsp(DuProcRlcUeReconfigRsp, pst, mBuf);
 453                      break;
 454                   }
 455                case EVENT_RLC_UE_DELETE_RSP:
 456                   {
 457                      ret = unpackRlcUeDeleteRsp(DuProcRlcUeDeleteRsp, pst, mBuf);
 458                      break;
 459                   }
 460                case EVENT_UL_RRC_MSG_TRANS_TO_DU:
 461                   {
 462                      ret = unpackRlcUlRrcMsgToDu(DuProcRlcUlRrcMsgTrans, pst, mBuf);
 463                      break;
 464                   }
 465                case EVENT_RRC_DELIVERY_MSG_TRANS_TO_DU:
 466                   {
 467                      ret = unpackRrcDeliveryReportToDu(DuProcRlcRrcDeliveryReport, pst, mBuf);
 468                      break;
 469                   }
 470                case EVENT_DL_RRC_MSG_RSP_TO_DU:
 471                   {
 472                      ret = unpackRlcDlRrcMsgRspToDu(DuProcRlcDlRrcMsgRsp, pst, mBuf);
 473                      break;
 474                   }
 475                case EVENT_RLC_MAX_RETRANSMISSION:
 476                   {
 477                      ret = unpackRlcMaxRetransInd(DuProcRlcMaxRetransInd, pst, mBuf);
 478                      break;
 479                   }
 480                case EVENT_UL_USER_DATA_TRANS_TO_DU:
 481                   {
 482                      ret = unpackRlcUlUserDataToDu(DuProcRlcUlUserDataTrans, pst, mBuf);
 483                      break;
 484                   }
 485                case EVENT_RLC_SLICE_PM_TO_DU:
 486                   {
 487                      ret = unpackRlcSlicePm(DuProcRlcSliceMetrics, pst, mBuf);
 488                      break;
 489                   }
 490                case EVENT_RLC_UE_REESTABLISH_RSP:
 491                   {
 492                      ret = unpackRlcUeReestablishRsp(DuProcRlcUeReestablishRsp, pst, mBuf);
 493                      break;
 494                   }
 495                default:
 496                   {
 497                      DU_LOG("\nERROR  -->  DU_APP : Invalid event %d received at duActvTsk from ENTRLC", \
 498                            pst->event);
 499                      ODU_PUT_MSG_BUF(mBuf);
 500                      ret = RFAILED;
 501                   }
 502             }
 503             break;
 504          }
 505       case ENTMAC:
 506          {
 507             switch(pst->event)
 508             {
 509                //Config complete
 510                case EVTCFG:
 511                   {
 512                      ODU_PUT_MSG_BUF(mBuf);
 513                      break;
 514                   }
 515                case EVTLRGCFGCFM:
 516                   {
 517                      ret = cmUnpkLrgCfgCfm(duHdlMacCfgComplete, pst, mBuf);
 518                      break;
 519                   }
 520                case EVTMACSCHGENCFGCFM:
 521                   {
 522                      ret = cmUnpkLrgSchCfgCfm(duHdlSchCfgComplete, pst, mBuf);
 523                      break;
 524                   }
 525                case EVENT_MAC_CELL_CONFIG_CFM:
 526                   {
 527                      ret = unpackMacCellCfgCfm(duHandleMacCellCfgCfm, pst, mBuf);
 528                      break;
 529                   }
 530                case EVENT_MAC_CELL_UP_IND:
 531                   {
 532                      ret = unpackMacCellUpInd(duHandleCellUpInd, pst, mBuf);
 533                      break;
 534                   }
 535                case EVENT_MAC_SLOT_IND:
 536                   {
 537                      ret = unpackDuMacSlotInd(duHandleSlotInd, pst, mBuf);
 538                      break;
 539                   }
 540                case EVENT_MAC_STOP_IND:
 541                   {
 542                      ret = unpackMacStopInd(duHandleStopInd, pst, mBuf);
 543                      break;
 544                   }
 545                case EVENT_MAC_UL_CCCH_IND:
 546                   {
 547                      ret = unpackMacUlCcchInd(duHandleUlCcchInd, pst, mBuf);
 548                      break;
 549                   }
 550                case EVENT_MAC_UE_CREATE_RSP:
 551                   {
 552                      ret = unpackDuMacUeCreateRsp(DuProcMacUeCreateRsp, pst, mBuf);
 553                      break;
 554                   }
 555                case EVENT_MAC_UE_RECONFIG_RSP:
 556                   {
 557                      ret = unpackDuMacUeRecfgRsp(DuProcMacUeRecfgRsp, pst, mBuf);
 558                      break;
 559                   }
 560                case EVENT_MAC_UE_DELETE_RSP:
 561                   {
 562                      ret = unpackDuMacUeDeleteRsp(DuProcMacUeDeleteRsp, pst, mBuf);
 563                      break;
 564                   }
 565                case EVENT_MAC_CELL_DELETE_RSP:
 566                   {
 567                      ret = unpackDuMacCellDeleteRsp(DuProcMacCellDeleteRsp, pst, mBuf);
 568                      break;
 569                   }
 570                case EVENT_MAC_SLICE_CFG_RSP:
 571                   {
 572                      ret = unpackDuMacSliceCfgRsp(DuProcMacSliceCfgRsp, pst, mBuf);
 573                      break;
 574                   }
 575                case EVENT_MAC_UE_SYNC_STATUS_IND:
 576                   {
 577                      ret = unpackDuMacUeSyncStatusInd(DuProcMacUeSyncStatusInd, pst, mBuf);
 578                      break;
 579                                                                                                 }
 580                case EVENT_MAC_SLICE_RECFG_RSP:
 581                   {
 582                      ret = unpackDuMacSliceRecfgRsp(DuProcMacSliceRecfgRsp, pst, mBuf);
 583                      break;
 584                   }
 585                case EVENT_MAC_RACH_RESOURCE_RSP:
 586                   {
 587                      ret = unpackDuMacRachRsrcRsp(DuProcMacRachRsrcRsp, pst, mBuf);
 588                      break;
 589                   }
 590                case EVENT_MAC_UE_RESET_RSP:
 591                   {
 592                      ret = unpackDuMacUeResetRsp(DuProcMacUeResetRsp, pst, mBuf);
 593                      break;
 594                   }
 595                case EVENT_MAC_STATISTICS_RSP:
 596                   {
 597                      ret = unpackDuMacStatsRsp(DuProcMacStatsRsp, pst, mBuf);
 598                      break;
 599                   }
 600                case EVENT_MAC_STATISTICS_IND:
 601                   {
 602                      ret = unpackDuMacStatsInd(DuProcMacStatsInd, pst, mBuf);
 603                      break;
 604                   }
 605                default:
 606                   {
 607                      DU_LOG("\nERROR  -->  DU_APP : Invalid event received at duActvTsk from ENTMAC");
 608                      ODU_PUT_MSG_BUF(mBuf);
 609                      ret = RFAILED;
 610                   }
 611             }
 612
 613             break;
 614          }
 615       case ENTSCTP:
 616          {
 617             switch(pst->event)
 618             {
 619                case EVENT_CU_DATA:
 620                   {
 621                      F1APMsgHdlr(mBuf);
 622                      break;
 623                   }
 624                case EVENT_SCTP_NTFY:
 625                   {
 626                      ret = cmUnpkSctpNtfy(duSctpNtfyHdl, pst, mBuf);
 627                      break;
 628                   }
 629                case EVENT_RIC_DATA:
 630                   {
 631                      E2APMsgHdlr(mBuf);
 632                      break;
 633                   }
 634                default:
 635                   {
 636                      DU_LOG("\nERROR  -->  DU_APP : Invalid event received at duActvTsk from ENTSCTP");
 637                      ret = RFAILED;
 638                   }
 639
 640             }
 641             ODU_PUT_MSG_BUF(mBuf);
 642             break;
 643          }
 644       case ENTEGTP:
 645          {
 646             switch(pst->event)
 647             {
 648                case EVTCFGCFM:
 649                   {
 650                      unpackEgtpCfgCfm(duHdlEgtpCfgComplete, mBuf);
 651                      break;
 652                   }
 653                case EVTSRVOPENCFM:
 654                   {
 655                      unpackEgtpSrvOpenCfm(duHdlEgtpSrvOpenComplete, mBuf);
 656                      break;
 657                   }
 658                case EVTTNLMGMTCFM:
 659                   {
 660                      unpackEgtpTnlMgmtCfm(duHdlEgtpTnlMgmtCfm, mBuf);
 661                      break;
 662                   }
 663                default:
 664                   {
 665                      DU_LOG("\nERROR  -->  DU_APP : Invalid event[%d] received at duActvTsk from ENTEGTP", pst->event);
 666                      ret = RFAILED;
 667                   }
 668             }
 669             ODU_PUT_MSG_BUF(mBuf);
 670             break;
 671          }
 672       default:
 673          {
 674             DU_LOG("\nERROR  -->  DU_APP : DU APP can not process message from Entity %d", pst->srcEnt);
 675             ODU_PUT_MSG_BUF(mBuf);
 676             ret = RFAILED;
 677          }
 678
 679    }
 680    ODU_EXIT_TASK();
 681    return ret;
 682 }
 683
 684 /**********************************************************************
 685   End of file
 686  **********************************************************************/