resource/csdk/connectivity/src/camessagehandler.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2014 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <stdint.h>
  25
  26 #include "cainterface.h"
  27 #include "camessagehandler.h"
  28 #include "caremotehandler.h"
  29 #include "caprotocolmessage.h"
  30 #include "logger.h"
  31 #include "config.h" /* for coap protocol */
  32 #include "oic_malloc.h"
  33 #include "canetworkconfigurator.h"
  34 #include "caadapterutils.h"
  35 #include "cainterfacecontroller.h"
  36 #include "caretransmission.h"
  37
  38 #ifdef WITH_BWT
  39 #include "cablockwisetransfer.h"
  40 #endif
  41
  42 #ifndef  SINGLE_THREAD
  43 #include "uqueue.h"
  44 #include "cathreadpool.h" /* for thread pool */
  45 #include "caqueueingthread.h"
  46
  47 #define SINGLE_HANDLE
  48 #define MAX_THREAD_POOL_SIZE    20
  49
  50 // thread pool handle
  51 static ca_thread_pool_t g_threadPoolHandle = NULL;
  52
  53 // message handler main thread
  54 static CAQueueingThread_t g_sendThread;
  55 static CAQueueingThread_t g_receiveThread;
  56
  57 #else
  58 #define CA_MAX_RT_ARRAY_SIZE    3
  59 #endif  /* SINGLE_THREAD */
  60
  61 #define TAG "CA_MSG_HNDLR"
  62
  63 static CARetransmission_t g_retransmissionContext;
  64
  65 // handler field
  66 static CARequestCallback g_requestHandler = NULL;
  67 static CAResponseCallback g_responseHandler = NULL;
  68 static CAErrorCallback g_errorHandler = NULL;
  69
  70 static void CAErrorHandler(const CAEndpoint_t *endpoint,
  71                            const void *data, uint32_t dataLen,
  72                            CAResult_t result);
  73
  74 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
  75                                        const CARemoteId_t *identity,
  76                                        const void *data, CADataType_t dataType);
  77
  78 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info,
  79                             CAResult_t result);
  80
  81 #ifdef SINGLE_THREAD
  82 static void CAProcessReceivedData(CAData_t *data);
  83 #endif
  84 static void CADestroyData(void *data, uint32_t size);
  85 static void CALogPayloadInfo(CAInfo_t *info);
  86 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *endpoint, uint16_t id);
  87
  88 #ifdef WITH_BWT
  89 void CAAddDataToSendThread(CAData_t *data)
  90 {
  91     OIC_LOG(DEBUG, TAG, "IN");
  92     VERIFY_NON_NULL_VOID(data, TAG, "data");
  93
  94     // add thread
  95     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
  96
  97     OIC_LOG(DEBUG, TAG, "OUT");
  98 }
  99
 100 void CAAddDataToReceiveThread(CAData_t *data)
 101 {
 102     OIC_LOG(DEBUG, TAG, "IN - CAAddDataToReceiveThread");
 103     VERIFY_NON_NULL_VOID(data, TAG, "data");
 104
 105     // add thread
 106     CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
 107
 108     OIC_LOG(DEBUG, TAG, "OUT - CAAddDataToReceiveThread");
 109 }
 110 #endif
 111
 112 static bool CAIsSelectedNetworkAvailable()
 113 {
 114     u_arraylist_t *list = CAGetSelectedNetworkList();
 115     if (!list || u_arraylist_length(list) == 0)
 116     {
 117         OIC_LOG(ERROR, TAG, "No selected network");
 118         return false;
 119     }
 120
 121     return true;
 122 }
 123
 124 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
 125                                        const CARemoteId_t *identity,
 126                                        const void *data, CADataType_t dataType)
 127 {
 128     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData IN");
 129     CAInfo_t *info = NULL;
 130     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 131     if (!cadata)
 132     {
 133         OIC_LOG(ERROR, TAG, "memory allocation failed");
 134         return NULL;
 135     }
 136
 137     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 138     if (!ep)
 139     {
 140         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 141         OICFree(cadata);
 142         return NULL;
 143     }
 144
 145     OIC_LOG_V(DEBUG, TAG, "address : %s", ep->addr);
 146     CAResult_t result;
 147
 148     if(CA_RESPONSE_DATA == dataType)
 149     {
 150         CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 151         if (!resInfo)
 152         {
 153             OIC_LOG(ERROR, TAG, "memory allocation failed");
 154             OICFree(cadata);
 155             CAFreeEndpoint(ep);
 156             return NULL;
 157         }
 158
 159         result = CAGetResponseInfoFromPDU(data, resInfo, endpoint->flags);
 160         if (CA_STATUS_OK != result)
 161         {
 162             OIC_LOG(ERROR, TAG, "CAGetResponseInfoFromPDU Failed");
 163             CAFreeEndpoint(ep);
 164             CADestroyResponseInfoInternal(resInfo);
 165             OICFree(cadata);
 166             return NULL;
 167         }
 168         cadata->responseInfo = resInfo;
 169         info = &resInfo->info;
 170         if (identity)
 171         {
 172             info->identity = *identity;
 173         }
 174         OIC_LOG(DEBUG, TAG, "Response Info :");
 175         CALogPayloadInfo(info);
 176     }
 177     else if (CA_REQUEST_DATA == dataType)
 178     {
 179         CARequestInfo_t* reqInfo = (CARequestInfo_t*)OICCalloc(1, sizeof(CARequestInfo_t));
 180         if (!reqInfo)
 181         {
 182             OIC_LOG(ERROR, TAG, "memory allocation failed");
 183             OICFree(cadata);
 184             CAFreeEndpoint(ep);
 185             return NULL;
 186         }
 187
 188         result = CAGetRequestInfoFromPDU(data, reqInfo, endpoint->flags);
 189         if (CA_STATUS_OK != result)
 190         {
 191             OIC_LOG(ERROR, TAG, "CAGetRequestInfoFromPDU failed");
 192             CAFreeEndpoint(ep);
 193             CADestroyRequestInfoInternal(reqInfo);
 194             OICFree(cadata);
 195             return NULL;
 196         }
 197
 198         if (CADropSecondMessage(&caglobals.ca.requestHistory, endpoint, reqInfo->info.messageId))
 199         {
 200             OIC_LOG(ERROR, TAG, "Second Request with same Token, Drop it");
 201             CAFreeEndpoint(ep);
 202             CADestroyRequestInfoInternal(reqInfo);
 203             OICFree(cadata);
 204             return NULL;
 205         }
 206
 207         cadata->requestInfo = reqInfo;
 208         info = &reqInfo->info;
 209         if (identity)
 210         {
 211             info->identity = *identity;
 212         }
 213         OIC_LOG(DEBUG, TAG, "Request Info :");
 214         CALogPayloadInfo(info);
 215    }
 216     else if (CA_ERROR_DATA == dataType)
 217     {
 218         CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
 219         if (!errorInfo)
 220         {
 221             OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 222             OICFree(cadata);
 223             CAFreeEndpoint(ep);
 224             return NULL;
 225         }
 226
 227         CAResult_t result = CAGetErrorInfoFromPDU(data, errorInfo, endpoint->flags);
 228         if (CA_STATUS_OK != result)
 229         {
 230             OIC_LOG(ERROR, TAG, "CAGetErrorInfoFromPDU failed");
 231             CAFreeEndpoint(ep);
 232             OICFree(errorInfo);
 233             OICFree(cadata);
 234             return NULL;
 235         }
 236
 237         cadata->errorInfo = errorInfo;
 238         info = &errorInfo->info;
 239         if (identity)
 240         {
 241             info->identity = *identity;
 242         }
 243         OIC_LOG(DEBUG, TAG, "error Info :");
 244         CALogPayloadInfo(info);
 245     }
 246
 247     cadata->remoteEndpoint = ep;
 248     cadata->dataType = dataType;
 249
 250     return cadata;
 251
 252     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData OUT");
 253 }
 254
 255 static void CATimeoutCallback(const CAEndpoint_t *endpoint, const void *pdu, uint32_t size)
 256 {
 257     OIC_LOG(DEBUG, TAG, "IN");
 258     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint");
 259     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 260
 261     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 262     if (!ep)
 263     {
 264         OIC_LOG(ERROR, TAG, "clone failed");
 265         return;
 266     }
 267
 268     CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 269
 270     if (!resInfo)
 271     {
 272         OIC_LOG(ERROR, TAG, "calloc failed");
 273         CAFreeEndpoint(ep);
 274         return;
 275     }
 276
 277     resInfo->result = CA_RETRANSMIT_TIMEOUT;
 278     resInfo->info.type = CAGetMessageTypeFromPduBinaryData(pdu, size);
 279     resInfo->info.messageId = CAGetMessageIdFromPduBinaryData(pdu, size);
 280
 281     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *) pdu, &(resInfo->info),
 282                                        endpoint->flags);
 283     if (CA_STATUS_OK != res)
 284     {
 285         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 286         CADestroyResponseInfoInternal(resInfo);
 287         CAFreeEndpoint(ep);
 288         return;
 289     }
 290
 291     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 292     if (NULL == cadata)
 293     {
 294         OIC_LOG(ERROR, TAG, "memory allocation failed !");
 295         CAFreeEndpoint(ep);
 296         CADestroyResponseInfoInternal(resInfo);
 297         return;
 298     }
 299
 300     cadata->type = SEND_TYPE_UNICAST;
 301     cadata->remoteEndpoint = ep;
 302     cadata->requestInfo = NULL;
 303     cadata->responseInfo = resInfo;
 304
 305 #ifdef SINGLE_THREAD
 306     CAProcessReceivedData(cadata);
 307 #else
 308     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 309 #endif
 310
 311     OIC_LOG(DEBUG, TAG, "OUT");
 312 }
 313
 314 static void CADestroyData(void *data, uint32_t size)
 315 {
 316     OIC_LOG(DEBUG, TAG, "CADestroyData IN");
 317     if ((size_t)size < sizeof(CAData_t))
 318     {
 319         OIC_LOG_V(ERROR, TAG, "Destroy data too small %p %d", data, size);
 320     }
 321     CAData_t *cadata = (CAData_t *) data;
 322
 323     if (NULL == cadata)
 324     {
 325         OIC_LOG(ERROR, TAG, "cadata is NULL");
 326         return;
 327     }
 328
 329     if (NULL != cadata->remoteEndpoint)
 330     {
 331         CAFreeEndpoint(cadata->remoteEndpoint);
 332     }
 333
 334     if (NULL != cadata->requestInfo)
 335     {
 336         CADestroyRequestInfoInternal((CARequestInfo_t *) cadata->requestInfo);
 337     }
 338
 339     if (NULL != cadata->responseInfo)
 340     {
 341         CADestroyResponseInfoInternal((CAResponseInfo_t *) cadata->responseInfo);
 342     }
 343
 344     if (NULL != cadata->errorInfo)
 345     {
 346         CADestroyErrorInfoInternal(cadata->errorInfo);
 347     }
 348
 349     OICFree(cadata);
 350     OIC_LOG(DEBUG, TAG, "CADestroyData OUT");
 351 }
 352
 353 #ifdef SINGLE_THREAD
 354 static void CAProcessReceivedData(CAData_t *data)
 355 {
 356     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData IN");
 357     if (!data)
 358     {
 359         OIC_LOG(ERROR, TAG, "thread data error!!");
 360         return;
 361     }
 362
 363     // parse the data and call the callbacks.
 364     // #1 parse the data
 365     // #2 get endpoint
 366     CAEndpoint_t *rep = (CAEndpoint_t *)(data->remoteEndpoint);
 367     if (!rep)
 368     {
 369         OIC_LOG(ERROR, TAG, "remoteEndpoint error!!");
 370         return;
 371     }
 372
 373     if (data->requestInfo && g_requestHandler)
 374     {
 375         g_requestHandler(rep, data->requestInfo);
 376     }
 377     else if (data->responseInfo && g_responseHandler)
 378     {
 379         g_responseHandler(rep, data->responseInfo);
 380     }
 381     else if (data->errorInfo && g_errorHandler)
 382     {
 383         g_errorHandler(rep, data->errorInfo);
 384     }
 385
 386 #ifdef SINGLE_THREAD
 387     CADestroyData(data, sizeof(CAData_t));
 388 #endif
 389
 390     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData OUT");
 391 }
 392 #endif
 393
 394 #ifndef SINGLE_THREAD
 395
 396 static void CAReceiveThreadProcess(void *threadData)
 397 {
 398     OIC_LOG(DEBUG, TAG, "IN");
 399 #ifndef SINGLE_HANDLE
 400     CAData_t *data = (CAData_t *) threadData;
 401     CAProcessReceivedData(data);
 402 #else
 403     (void)threadData;
 404 #endif
 405     OIC_LOG(DEBUG, TAG, "OUT");
 406 }
 407 #endif
 408
 409 static CAResult_t CAProcessSendData(const CAData_t *data)
 410 {
 411     OIC_LOG(DEBUG, TAG, "IN");
 412     VERIFY_NON_NULL(data, TAG, "data");
 413     VERIFY_NON_NULL(data->remoteEndpoint, TAG, "remoteEndpoint");
 414
 415     CAResult_t res = CA_STATUS_FAILED;
 416
 417     CASendDataType_t type = data->type;
 418
 419     coap_pdu_t *pdu = NULL;
 420     CAInfo_t *info = NULL;
 421
 422     if (SEND_TYPE_UNICAST == type)
 423     {
 424
 425         OIC_LOG(DEBUG,TAG,"Unicast message");
 426         if (NULL != data->requestInfo)
 427         {
 428             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 429
 430             info = &data->requestInfo->info;
 431             pdu = CAGeneratePDU(data->requestInfo->method, info, data->remoteEndpoint);
 432         }
 433         else if (NULL != data->responseInfo)
 434         {
 435             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 436
 437             info = &data->responseInfo->info;
 438             pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint);
 439         }
 440         else
 441         {
 442             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 443             return CA_STATUS_INVALID_PARAM;
 444         }
 445
 446         // interface controller function call.
 447         if (NULL != pdu)
 448         {
 449 #ifdef WITH_BWT
 450             if (CA_ADAPTER_GATT_BTLE != data->remoteEndpoint->adapter
 451 #ifdef CI_ADAPTER
 452                     && CA_IPV4_TCP != data->remoteEndpoint->flags
 453 #endif
 454                     )
 455             {
 456                 // Blockwise transfer
 457                 if (NULL != info)
 458                 {
 459                     CAResult_t res = CAAddBlockOption(&pdu, *info,
 460                                                       data->remoteEndpoint);
 461                     if (CA_STATUS_OK != res)
 462                     {
 463                         OIC_LOG(INFO, TAG, "to write block option has failed");
 464                         CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 465                         coap_delete_pdu(pdu);
 466                         return res;
 467                     }
 468                 }
 469             }
 470 #endif
 471             CALogPDUInfo(pdu, data->remoteEndpoint->flags);
 472
 473             res = CASendUnicastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 474             if (CA_STATUS_OK != res)
 475             {
 476                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 477                 CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 478                 coap_delete_pdu(pdu);
 479                 return res;
 480             }
 481
 482 #ifdef CI_ADAPTER
 483             if (CA_IPV4_TCP == data->remoteEndpoint->flags)
 484             {
 485                 OIC_LOG(INFO, TAG, "retransmission will be not worked");
 486             }
 487             else
 488 #endif
 489             {
 490                 // for retransmission
 491                 res = CARetransmissionSentData(&g_retransmissionContext, data->remoteEndpoint, pdu->hdr,
 492                                                pdu->length);
 493                 if ((CA_STATUS_OK != res) && (CA_NOT_SUPPORTED != res))
 494                 {
 495                     //when retransmission not supported this will return CA_NOT_SUPPORTED, ignore
 496                     OIC_LOG_V(INFO, TAG, "retransmission is not enabled due to error, res : %d", res);
 497                     coap_delete_pdu(pdu);
 498                     return res;
 499                 }
 500             }
 501
 502             coap_delete_pdu(pdu);
 503         }
 504         else
 505         {
 506             OIC_LOG(ERROR,TAG,"Failed to generate unicast PDU");
 507             CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 508             return CA_SEND_FAILED;
 509         }
 510     }
 511     else if (SEND_TYPE_MULTICAST == type)
 512     {
 513         OIC_LOG(DEBUG,TAG,"Multicast message");
 514         if (NULL != data->requestInfo)
 515         {
 516             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 517
 518             info = &data->requestInfo->info;
 519             pdu = CAGeneratePDU(CA_GET, info, data->remoteEndpoint);
 520             if (NULL != pdu)
 521             {
 522 #ifdef WITH_BWT
 523                 if (CA_ADAPTER_GATT_BTLE != data->remoteEndpoint->adapter
 524 #ifdef CI_ADAPTER
 525                         && CA_IPV4_TCP != data->remoteEndpoint->flags
 526 #endif
 527                         )
 528                 {
 529                     // Blockwise transfer
 530                     CAResult_t res = CAAddBlockOption(&pdu, data->requestInfo->info,
 531                                                       data->remoteEndpoint);
 532                     if (CA_STATUS_OK != res)
 533                     {
 534                         OIC_LOG(DEBUG, TAG, "CAAddBlockOption has failed");
 535                         CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 536                         coap_delete_pdu(pdu);
 537                         return res;
 538                     }
 539                 }
 540 #endif
 541                 CALogPDUInfo(pdu, data->remoteEndpoint->flags);
 542
 543                 res = CASendMulticastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 544                 if (CA_STATUS_OK != res)
 545                 {
 546                     OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 547                     CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 548                     coap_delete_pdu(pdu);
 549                     return res;
 550                 }
 551
 552                 OIC_LOG(DEBUG, TAG, "pdu to send :");
 553                 OIC_LOG_BUFFER(DEBUG, TAG,  pdu->hdr, pdu->length);
 554
 555                 coap_delete_pdu(pdu);
 556             }
 557             else
 558             {
 559                 OIC_LOG(ERROR,TAG,"Failed to generate multicast PDU");
 560                 CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 561                 return CA_SEND_FAILED;
 562             }
 563         }
 564         else
 565         {
 566             OIC_LOG(ERROR, TAG, "request info is empty");
 567             return CA_SEND_FAILED;
 568         }
 569     }
 570
 571     OIC_LOG(DEBUG, TAG, "OUT");
 572     return CA_STATUS_OK;
 573 }
 574
 575 #ifndef SINGLE_THREAD
 576 static void CASendThreadProcess(void *threadData)
 577 {
 578     CAData_t *data = (CAData_t *) threadData;
 579     CAProcessSendData(data);
 580 }
 581
 582 #endif
 583
 584 /*
 585  * If a second message arrives with the same token and the other address
 586  * family, drop it.  Typically, IPv6 beats IPv4, so the IPv4 message is dropped.
 587  */
 588 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *ep, uint16_t id)
 589 {
 590     if (!ep)
 591     {
 592         return true;
 593     }
 594     if (ep->adapter != CA_ADAPTER_IP)
 595     {
 596         return false;
 597     }
 598     if (!caglobals.ip.dualstack)
 599     {
 600         return false;
 601     }
 602
 603     bool ret = false;
 604     CATransportFlags_t familyFlags = ep->flags & CA_IPFAMILY_MASK;
 605
 606     for (size_t i = 0; i < sizeof(history->items) / sizeof(history->items[0]); i++)
 607     {
 608         CAHistoryItem_t *item = &(history->items[i]);
 609         if (id == item->messageId)
 610         {
 611             if ((familyFlags ^ item->flags) == CA_IPFAMILY_MASK)
 612             {
 613                 OIC_LOG_V(INFO, TAG, "IPv%c duplicate message ignored",
 614                                             familyFlags & CA_IPV6 ? '6' : '4');
 615                 ret = true;
 616                 break;
 617             }
 618         }
 619     }
 620
 621     history->items[history->nextIndex].flags = familyFlags;
 622     history->items[history->nextIndex].messageId = id;
 623     if (++history->nextIndex >= HISTORYSIZE)
 624     {
 625         history->nextIndex = 0;
 626     }
 627
 628     return ret;
 629 }
 630
 631 static void CAReceivedPacketCallback(const CASecureEndpoint_t *sep,
 632                                      const void *data, uint32_t dataLen)
 633 {
 634     OIC_LOG(DEBUG, TAG, "IN");
 635     VERIFY_NON_NULL_VOID(sep, TAG, "remoteEndpoint");
 636     VERIFY_NON_NULL_VOID(data, TAG, "data");
 637
 638     OIC_LOG(DEBUG, TAG, "received pdu data :");
 639     OIC_LOG_BUFFER(DEBUG, TAG,  data, dataLen);
 640
 641     uint32_t code = CA_NOT_FOUND;
 642     CAData_t *cadata = NULL;
 643
 644     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code,
 645                                                 sep->endpoint.flags);
 646     if (NULL == pdu)
 647     {
 648         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 649         return;
 650     }
 651
 652     OIC_LOG_V(DEBUG, TAG, "code = %d", code);
 653     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 654     {
 655         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_REQUEST_DATA);
 656         if (!cadata)
 657         {
 658             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 659             coap_delete_pdu(pdu);
 660             return;
 661         }
 662     }
 663     else
 664     {
 665         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_RESPONSE_DATA);
 666         if (!cadata)
 667         {
 668             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 669             coap_delete_pdu(pdu);
 670             return;
 671         }
 672
 673 #ifdef CI_ADAPTER
 674         if (CA_IPV4_TCP == sep->endpoint.flags)
 675         {
 676             OIC_LOG(INFO, TAG, "retransmission will be not worked");
 677         }
 678         else
 679 #endif
 680         {
 681             // for retransmission
 682             void *retransmissionPdu = NULL;
 683             CARetransmissionReceivedData(&g_retransmissionContext, cadata->remoteEndpoint, pdu->hdr,
 684                                          pdu->length, &retransmissionPdu);
 685
 686             // get token from saved data in retransmission list
 687             if (retransmissionPdu && CA_EMPTY == code)
 688             {
 689                 if (cadata->responseInfo)
 690                 {
 691                     CAInfo_t *info = &cadata->responseInfo->info;
 692                     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *)retransmissionPdu,
 693                                                        info, sep->endpoint.flags);
 694                     if (CA_STATUS_OK != res)
 695                     {
 696                         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 697                         OICFree(info->token);
 698                         info->tokenLength = 0;
 699                     }
 700                 }
 701             }
 702             OICFree(retransmissionPdu);
 703         }
 704     }
 705
 706     cadata->type = SEND_TYPE_UNICAST;
 707
 708 #ifdef SINGLE_THREAD
 709     CAProcessReceivedData(cadata);
 710 #else
 711 #ifdef WITH_BWT
 712     if (CA_ADAPTER_GATT_BTLE != sep->endpoint.adapter
 713 #ifdef CI_ADAPTER
 714             && CA_IPV4_TCP != sep->endpoint.flags
 715 #endif
 716             )
 717     {
 718         CAResult_t res = CAReceiveBlockWiseData(pdu, &(sep->endpoint), cadata, dataLen);
 719         if (CA_NOT_SUPPORTED == res)
 720         {
 721             OIC_LOG(ERROR, TAG, "this message does not have block option");
 722             CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 723         }
 724         else
 725         {
 726             CADestroyData(cadata, sizeof(CAData_t));
 727         }
 728     }
 729     else
 730 #endif
 731     {
 732         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 733     }
 734 #endif
 735
 736     coap_delete_pdu(pdu);
 737
 738     OIC_LOG(DEBUG, TAG, "OUT");
 739 }
 740
 741 static void CANetworkChangedCallback(const CAEndpoint_t *info, CANetworkStatus_t status)
 742 {
 743     (void)info;
 744     (void)status;
 745     OIC_LOG(DEBUG, TAG, "IN");
 746
 747     OIC_LOG(DEBUG, TAG, "OUT");
 748 }
 749
 750 void CAHandleRequestResponseCallbacks()
 751 {
 752 #ifdef SINGLE_THREAD
 753     CAReadData();
 754     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 755 #else
 756 #ifdef SINGLE_HANDLE
 757     // parse the data and call the callbacks.
 758     // #1 parse the data
 759     // #2 get endpoint
 760
 761     ca_mutex_lock(g_receiveThread.threadMutex);
 762
 763     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 764
 765     ca_mutex_unlock(g_receiveThread.threadMutex);
 766
 767     if (NULL == item)
 768     {
 769         return;
 770     }
 771
 772     // get values
 773     void *msg = item->msg;
 774
 775     if (NULL == msg)
 776     {
 777         return;
 778     }
 779
 780     // get endpoint
 781     CAData_t *td = (CAData_t *) msg;
 782
 783     if (td->requestInfo && g_requestHandler)
 784     {
 785         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 786         g_requestHandler(td->remoteEndpoint, td->requestInfo);
 787     }
 788     else if (td->responseInfo && g_responseHandler)
 789     {
 790         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 791         g_responseHandler(td->remoteEndpoint, td->responseInfo);
 792     }
 793     else if (td->errorInfo && g_errorHandler)
 794     {
 795         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 796         g_errorHandler(td->remoteEndpoint, td->errorInfo);
 797     }
 798
 799     CADestroyData(msg, sizeof(CAData_t));
 800     OICFree(item);
 801
 802 #endif /* SINGLE_HANDLE */
 803 #endif
 804 }
 805
 806 static CAData_t* CAPrepareSendData(const CAEndpoint_t *endpoint, const void *sendData,
 807                                    CADataType_t dataType)
 808 {
 809     OIC_LOG(DEBUG, TAG, "CAPrepareSendData IN");
 810
 811     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 812     if (!cadata)
 813     {
 814         OIC_LOG(ERROR, TAG, "memory allocation failed");
 815         return NULL;
 816     }
 817
 818     if(CA_REQUEST_DATA == dataType)
 819     {
 820         // clone request info
 821         CARequestInfo_t *request = CACloneRequestInfo((CARequestInfo_t *)sendData);
 822
 823         if(!request)
 824         {
 825             OIC_LOG(ERROR, TAG, "CACloneRequestInfo failed");
 826             OICFree(cadata);
 827             return NULL;
 828         }
 829
 830         cadata->type = request->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 831         cadata->requestInfo =  request;
 832     }
 833     else if(CA_RESPONSE_DATA == dataType)
 834     {
 835         // clone response info
 836         CAResponseInfo_t *response = CACloneResponseInfo((CAResponseInfo_t *)sendData);
 837
 838         if(!response)
 839         {
 840             OIC_LOG(ERROR, TAG, "CACloneResponseInfo failed");
 841             OICFree(cadata);
 842             return NULL;
 843         }
 844
 845         cadata->type = SEND_TYPE_UNICAST;
 846         cadata->responseInfo = response;
 847     }
 848     else
 849     {
 850         OIC_LOG(ERROR, TAG, "CAPrepareSendData unknown data type");
 851         OICFree(cadata);
 852         return NULL;
 853     }
 854
 855     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 856     if (!ep)
 857     {
 858         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 859         CADestroyData(cadata, sizeof(CAData_t));
 860         return NULL;
 861     }
 862
 863     cadata->remoteEndpoint = ep;
 864     cadata->dataType = dataType;
 865     return cadata;
 866 }
 867
 868 CAResult_t CADetachRequestMessage(const CAEndpoint_t *object, const CARequestInfo_t *request)
 869 {
 870     OIC_LOG(DEBUG, TAG, "IN");
 871
 872     VERIFY_NON_NULL(object, TAG, "object");
 873     VERIFY_NON_NULL(request, TAG, "request");
 874
 875     if (false == CAIsSelectedNetworkAvailable())
 876     {
 877         return CA_STATUS_FAILED;
 878     }
 879
 880 #ifdef ARDUINO
 881     // If max retransmission queue is reached, then don't handle new request
 882     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 883     {
 884         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 885         return CA_SEND_FAILED;
 886     }
 887 #endif /* ARDUINO */
 888
 889     CAData_t *data = CAPrepareSendData(object, request, CA_REQUEST_DATA);
 890     if(!data)
 891     {
 892         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 893         return CA_MEMORY_ALLOC_FAILED;
 894     }
 895
 896 #ifdef SINGLE_THREAD
 897     CAResult_t result = CAProcessSendData(data);
 898     if(CA_STATUS_OK != result)
 899     {
 900         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
 901         return result;
 902     }
 903
 904     CADestroyData(data, sizeof(CAData_t));
 905 #else
 906 #ifdef WITH_BWT
 907     if (CA_ADAPTER_GATT_BTLE != object->adapter
 908 #ifdef CI_ADAPTER
 909             && CA_IPV4_TCP != object->flags
 910 #endif
 911             )
 912     {
 913         // send block data
 914         CAResult_t res = CASendBlockWiseData(data);
 915         if(CA_NOT_SUPPORTED == res)
 916         {
 917             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
 918             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 919             return CA_STATUS_OK;
 920         }
 921         else
 922         {
 923             CADestroyData(data, sizeof(CAData_t));
 924         }
 925         return res;
 926     }
 927     else
 928 #endif
 929     {
 930         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 931     }
 932 #endif
 933
 934     OIC_LOG(DEBUG, TAG, "OUT");
 935     return CA_STATUS_OK;
 936 }
 937
 938 CAResult_t CADetachResponseMessage(const CAEndpoint_t *object,
 939                                    const CAResponseInfo_t *response)
 940 {
 941     OIC_LOG(DEBUG, TAG, "IN");
 942     VERIFY_NON_NULL(object, TAG, "object");
 943     VERIFY_NON_NULL(response, TAG, "response");
 944
 945     if (false == CAIsSelectedNetworkAvailable())
 946     {
 947         return CA_STATUS_FAILED;
 948     }
 949
 950     CAData_t *data = CAPrepareSendData(object, response, CA_RESPONSE_DATA);
 951     if(!data)
 952     {
 953         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 954         return CA_MEMORY_ALLOC_FAILED;
 955     }
 956
 957 #ifdef SINGLE_THREAD
 958     CAResult_t result = CAProcessSendData(data);
 959     if(result != CA_STATUS_OK)
 960     {
 961         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
 962         return result;
 963     }
 964
 965     CADestroyData(data, sizeof(CAData_t));
 966 #else
 967 #ifdef WITH_BWT
 968     if (CA_ADAPTER_GATT_BTLE != object->adapter
 969 #ifdef CI_ADAPTER
 970             && CA_IPV4_TCP != object->flags
 971 #endif
 972             )
 973     {
 974         // send block data
 975         CAResult_t res = CASendBlockWiseData(data);
 976         if(CA_NOT_SUPPORTED == res)
 977         {
 978             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
 979             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 980             return CA_STATUS_OK;
 981         }
 982         else
 983         {
 984             CADestroyData(data, sizeof(CAData_t));
 985         }
 986         return res;
 987     }
 988     else
 989 #endif
 990     {
 991         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 992     }
 993 #endif
 994
 995     OIC_LOG(DEBUG, TAG, "OUT");
 996     return CA_STATUS_OK;
 997 }
 998
 999 CAResult_t CADetachMessageResourceUri(const CAURI_t resourceUri, const CAToken_t token,
1000                                       uint8_t tokenLength, const CAHeaderOption_t *options,
1001                                       uint8_t numOptions)
1002 {
1003     (void)resourceUri;
1004     (void)token;
1005     (void)tokenLength;
1006     (void)options;
1007     (void)numOptions;
1008     return CA_NOT_SUPPORTED;
1009 }
1010
1011 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
1012                              CAErrorCallback errorHandler)
1013 {
1014     OIC_LOG(DEBUG, TAG, "IN");
1015     g_requestHandler = ReqHandler;
1016     g_responseHandler = RespHandler;
1017     g_errorHandler = errorHandler;
1018     OIC_LOG(DEBUG, TAG, "OUT");
1019 }
1020
1021 CAResult_t CAInitializeMessageHandler()
1022 {
1023     OIC_LOG(DEBUG, TAG, "IN");
1024     CASetPacketReceivedCallback(CAReceivedPacketCallback);
1025
1026     CASetNetworkChangeCallback(CANetworkChangedCallback);
1027     CASetErrorHandleCallback(CAErrorHandler);
1028
1029 #ifndef SINGLE_THREAD
1030     // create thread pool
1031     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
1032
1033     if (CA_STATUS_OK != res)
1034     {
1035         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
1036         return res;
1037     }
1038
1039     // send thread initialize
1040     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
1041                                                    CASendThreadProcess, CADestroyData))
1042     {
1043         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
1044         return CA_STATUS_FAILED;
1045     }
1046
1047     // start send thread
1048     res = CAQueueingThreadStart(&g_sendThread);
1049
1050     if (CA_STATUS_OK != res)
1051     {
1052         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
1053         ca_thread_pool_free(g_threadPoolHandle);
1054         g_threadPoolHandle = NULL;
1055         return res;
1056     }
1057
1058     // receive thread initialize
1059     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
1060                                                    CAReceiveThreadProcess, CADestroyData))
1061     {
1062         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
1063         return CA_STATUS_FAILED;
1064     }
1065
1066 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1067     // start receive thread
1068     res = CAQueueingThreadStart(&gReceiveThread);
1069
1070     if (res != CA_STATUS_OK)
1071     {
1072         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
1073         return res;
1074     }
1075 #endif /* SINGLE_HANDLE */
1076
1077     // retransmission initialize
1078     CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle, CASendUnicastData,
1079                                CATimeoutCallback, NULL);
1080
1081 #ifdef WITH_BWT
1082     // block-wise transfer initialize
1083     CAInitializeBlockWiseTransfer(CAAddDataToSendThread, CAAddDataToReceiveThread);
1084 #endif
1085
1086     // start retransmission
1087     res = CARetransmissionStart(&g_retransmissionContext);
1088
1089     if (CA_STATUS_OK != res)
1090     {
1091         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
1092         return res;
1093     }
1094
1095     // initialize interface adapters by controller
1096     CAInitializeAdapters(g_threadPoolHandle);
1097 #else
1098     // retransmission initialize
1099     CARetransmissionInitialize(&g_retransmissionContext, NULL, CASendUnicastData,
1100                                CATimeoutCallback, NULL);
1101     CAInitializeAdapters();
1102 #endif
1103
1104     OIC_LOG(DEBUG, TAG, "OUT");
1105     return CA_STATUS_OK;
1106 }
1107
1108 void CATerminateMessageHandler()
1109 {
1110     OIC_LOG(DEBUG, TAG, "IN");
1111 #ifndef SINGLE_THREAD
1112     CATransportAdapter_t connType;
1113     u_arraylist_t *list = CAGetSelectedNetworkList();
1114     uint32_t length = u_arraylist_length(list);
1115
1116     uint32_t i = 0;
1117     for (i = 0; i < length; i++)
1118     {
1119         void* ptrType = u_arraylist_get(list, i);
1120
1121         if (NULL == ptrType)
1122         {
1123             continue;
1124         }
1125
1126         connType = *(CATransportAdapter_t *)ptrType;
1127         CAStopAdapter(connType);
1128     }
1129
1130     // stop retransmission
1131     if (NULL != g_retransmissionContext.threadMutex)
1132     {
1133         CARetransmissionStop(&g_retransmissionContext);
1134     }
1135
1136     // stop thread
1137     // delete thread data
1138     if (NULL != g_sendThread.threadMutex)
1139     {
1140         CAQueueingThreadStop(&g_sendThread);
1141     }
1142
1143     // stop thread
1144     // delete thread data
1145     if (NULL != g_receiveThread.threadMutex)
1146     {
1147 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1148         CAQueueingThreadStop(&gReceiveThread);
1149 #endif /* SINGLE_HANDLE */
1150     }
1151
1152     // destroy thread pool
1153     if (NULL != g_threadPoolHandle)
1154     {
1155         ca_thread_pool_free(g_threadPoolHandle);
1156         g_threadPoolHandle = NULL;
1157     }
1158
1159 #ifdef WITH_BWT
1160     CATerminateBlockWiseTransfer();
1161 #endif
1162     CARetransmissionDestroy(&g_retransmissionContext);
1163     CAQueueingThreadDestroy(&g_sendThread);
1164     CAQueueingThreadDestroy(&g_receiveThread);
1165
1166     // terminate interface adapters by controller
1167     CATerminateAdapters();
1168 #else
1169     // terminate interface adapters by controller
1170     CATerminateAdapters();
1171
1172     // stop retransmission
1173     CARetransmissionStop(&g_retransmissionContext);
1174     CARetransmissionDestroy(&g_retransmissionContext);
1175 #endif
1176
1177     OIC_LOG(DEBUG, TAG, "OUT");
1178 }
1179
1180 void CALogPDUInfo(coap_pdu_t *pdu, CATransportFlags_t flags)
1181 {
1182     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1183
1184     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
1185
1186 #ifdef CI_ADAPTER
1187     if (CA_IPV4_TCP != flags)
1188     {
1189         OIC_LOG(DEBUG, TAG, "pdu headert data :");
1190         OIC_LOG_BUFFER(DEBUG, TAG,  pdu->hdr, pdu->length);
1191     }
1192     else
1193 #endif
1194     {
1195         OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->hdr->coap_hdr_udp_t.type);
1196
1197         OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->hdr->coap_hdr_udp_t.code);
1198
1199         OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
1200
1201         OIC_LOG_BUFFER(DEBUG, TAG, pdu->hdr->coap_hdr_udp_t.token,
1202                        pdu->hdr->coap_hdr_udp_t.token_length);
1203     }
1204 }
1205
1206 static void CALogPayloadInfo(CAInfo_t *info)
1207 {
1208     if(info)
1209     {
1210         if (info->options)
1211         {
1212             for (uint32_t i = 0; i < info->numOptions; i++)
1213             {
1214                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", info->options[i].optionID);
1215
1216                 OIC_LOG_V(DEBUG, TAG, "list: %s", info->options[i].optionData);
1217             }
1218         }
1219
1220         if (info->payload)
1221         {
1222             OIC_LOG_V(DEBUG, TAG, "payload: %p(%u)", info->payload,
1223                       info->payloadSize);
1224         }
1225
1226         if (info->token)
1227         {
1228             OIC_LOG(DEBUG, TAG, "token:");
1229             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) info->token,
1230                            info->tokenLength);
1231         }
1232         OIC_LOG_V(DEBUG, TAG, "msgID: %d", info->messageId);
1233     }
1234     else
1235     {
1236         OIC_LOG(DEBUG, TAG, "info is NULL, cannot output log data");
1237     }
1238 }
1239
1240 void CAErrorHandler(const CAEndpoint_t *endpoint,
1241                     const void *data, uint32_t dataLen,
1242                     CAResult_t result)
1243 {
1244     OIC_LOG(DEBUG, TAG, "CAErrorHandler IN");
1245
1246 #ifndef SINGLE_THREAD
1247
1248     VERIFY_NON_NULL_VOID(endpoint, TAG, "remoteEndpoint");
1249     VERIFY_NON_NULL_VOID(data, TAG, "data");
1250
1251     uint32_t code = CA_NOT_FOUND;
1252     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1253     //Get PDU data
1254     coap_pdu_t *pdu = (coap_pdu_t *)CAParsePDU((const char *)data, dataLen, &code, endpoint->flags);
1255     if (NULL == pdu)
1256     {
1257         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1258         return;
1259     }
1260
1261     CAData_t *cadata = CAGenerateHandlerData(endpoint, NULL, pdu, CA_ERROR_DATA);
1262     if(!cadata)
1263     {
1264         OIC_LOG(ERROR, TAG, "CAErrorHandler, CAGenerateHandlerData failed!");
1265         coap_delete_pdu(pdu);
1266         return;
1267     }
1268
1269     cadata->errorInfo->result = result;
1270
1271     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1272     coap_delete_pdu(pdu);
1273 #endif
1274
1275     OIC_LOG(DEBUG, TAG, "CAErrorHandler OUT");
1276     return;
1277 }
1278
1279 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info, CAResult_t result)
1280 {
1281     OIC_LOG(DEBUG, TAG, "CASendErrorInfo IN");
1282 #ifndef SINGLE_THREAD
1283     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1284     if (!cadata)
1285     {
1286         OIC_LOG(ERROR, TAG, "memory allocation failed");
1287         return;
1288     }
1289
1290     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
1291     if (!ep)
1292     {
1293         OIC_LOG(ERROR, TAG, "endpoint clone failed");
1294         OICFree(cadata);
1295         return;
1296     }
1297
1298     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
1299     if (!errorInfo)
1300     {
1301         OICFree(cadata);
1302         CAFreeEndpoint(ep);
1303         return;
1304     }
1305
1306     CAResult_t res = CACloneInfo(info, &errorInfo->info);
1307     if (CA_STATUS_OK != res)
1308     {
1309         OICFree(cadata);
1310         CAFreeEndpoint(ep);
1311         return;
1312     }
1313
1314     errorInfo->result = result;
1315     cadata->remoteEndpoint = ep;
1316     cadata->errorInfo = errorInfo;
1317     cadata->dataType = CA_ERROR_DATA;
1318
1319     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1320 #endif
1321     OIC_LOG(DEBUG, TAG, "CASendErrorInfo OUT");
1322 }