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);
 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, endpoint, reqInfo);
 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, endpoint, errorInfo);
 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);
 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         OIC_LOG(DEBUG,TAG,"Unicast message");
 425         if (NULL != data->requestInfo)
 426         {
 427             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 428
 429             info = &data->requestInfo->info;
 430             pdu = CAGeneratePDU(data->requestInfo->method, info, data->remoteEndpoint);
 431         }
 432         else if (NULL != data->responseInfo)
 433         {
 434             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 435
 436             info = &data->responseInfo->info;
 437             pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint);
 438         }
 439         else
 440         {
 441             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 442             return CA_STATUS_INVALID_PARAM;
 443         }
 444
 445         // interface controller function call.
 446         if (NULL != pdu)
 447         {
 448 #ifdef WITH_BWT
 449             if (CA_ADAPTER_GATT_BTLE != data->remoteEndpoint->adapter
 450 #ifdef TCP_ADAPTER
 451                     && CA_ADAPTER_TCP != data->remoteEndpoint->adapter
 452 #endif
 453                     )
 454             {
 455                 // Blockwise transfer
 456                 if (NULL != info)
 457                 {
 458                     CAResult_t res = CAAddBlockOption(&pdu, *info,
 459                                                       data->remoteEndpoint);
 460                     if (CA_STATUS_OK != res)
 461                     {
 462                         OIC_LOG(INFO, TAG, "to write block option has failed");
 463                         CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 464                         coap_delete_pdu(pdu);
 465                         return res;
 466                     }
 467                 }
 468             }
 469 #endif
 470             CALogPDUInfo(pdu, data->remoteEndpoint);
 471
 472             res = CASendUnicastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 473             if (CA_STATUS_OK != res)
 474             {
 475                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 476                 CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 477                 coap_delete_pdu(pdu);
 478                 return res;
 479             }
 480
 481 #ifdef TCP_ADAPTER
 482             if (CA_ADAPTER_TCP == data->remoteEndpoint->adapter)
 483             {
 484                 OIC_LOG(INFO, TAG, "retransmission will be not worked");
 485             }
 486             else
 487 #endif
 488             {
 489                 // for retransmission
 490                 res = CARetransmissionSentData(&g_retransmissionContext, data->remoteEndpoint, pdu->hdr,
 491                                                pdu->length);
 492                 if ((CA_STATUS_OK != res) && (CA_NOT_SUPPORTED != res))
 493                 {
 494                     //when retransmission not supported this will return CA_NOT_SUPPORTED, ignore
 495                     OIC_LOG_V(INFO, TAG, "retransmission is not enabled due to error, res : %d", res);
 496                     coap_delete_pdu(pdu);
 497                     return res;
 498                 }
 499             }
 500
 501             coap_delete_pdu(pdu);
 502         }
 503         else
 504         {
 505             OIC_LOG(ERROR,TAG,"Failed to generate unicast PDU");
 506             CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 507             return CA_SEND_FAILED;
 508         }
 509     }
 510     else if (SEND_TYPE_MULTICAST == type)
 511     {
 512         OIC_LOG(DEBUG,TAG,"Multicast message");
 513         if (NULL != data->requestInfo)
 514         {
 515             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 516
 517             info = &data->requestInfo->info;
 518             pdu = CAGeneratePDU(CA_GET, info, data->remoteEndpoint);
 519             if (NULL != pdu)
 520             {
 521 #ifdef WITH_BWT
 522                 if (CA_ADAPTER_GATT_BTLE != data->remoteEndpoint->adapter
 523 #ifdef TCP_ADAPTER
 524                         && CA_ADAPTER_TCP != data->remoteEndpoint->adapter
 525 #endif
 526                         )
 527                 {
 528                     // Blockwise transfer
 529                     CAResult_t res = CAAddBlockOption(&pdu, data->requestInfo->info,
 530                                                       data->remoteEndpoint);
 531                     if (CA_STATUS_OK != res)
 532                     {
 533                         OIC_LOG(DEBUG, TAG, "CAAddBlockOption has failed");
 534                         CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 535                         coap_delete_pdu(pdu);
 536                         return res;
 537                     }
 538                 }
 539 #endif
 540             }
 541             else
 542             {
 543                 OIC_LOG(ERROR,TAG,"Failed to generate multicast PDU");
 544                 CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 545                 return CA_SEND_FAILED;
 546             }
 547         }
 548         else if (NULL != data->responseInfo)
 549         {
 550             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 551
 552             info = &data->responseInfo->info;
 553             pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint);
 554
 555             if (NULL != pdu)
 556             {
 557 #ifdef WITH_BWT
 558                 if (CA_ADAPTER_GATT_BTLE != data->remoteEndpoint->adapter
 559 #ifdef TCP_ADAPTER
 560                         && CA_ADAPTER_TCP != data->remoteEndpoint->adapter
 561 #endif
 562                         )
 563                 {
 564                     // Blockwise transfer
 565                     if (NULL != info)
 566                     {
 567                         CAResult_t res = CAAddBlockOption(&pdu, *info,
 568                                 data->remoteEndpoint);
 569                         if (CA_STATUS_OK != res)
 570                         {
 571                             OIC_LOG(INFO, TAG, "to write block option has failed");
 572                             CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 573                             coap_delete_pdu(pdu);
 574                             return res;
 575                         }
 576                     }
 577                 }
 578 #endif
 579             }
 580             else
 581             {
 582                 OIC_LOG(ERROR,TAG,"Failed to generate multicast PDU");
 583                 CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 584                 return CA_SEND_FAILED;
 585             }
 586         }
 587         else
 588         {
 589             OIC_LOG(ERROR, TAG, "request or response info is empty");
 590             return CA_SEND_FAILED;
 591         }
 592
 593         CALogPDUInfo(pdu, data->remoteEndpoint);
 594
 595         OIC_LOG(DEBUG, TAG, "pdu to send :");
 596         OIC_LOG_BUFFER(DEBUG, TAG,  pdu->hdr, pdu->length);
 597
 598         res = CASendMulticastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 599         if (CA_STATUS_OK != res)
 600         {
 601             OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 602             CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 603             coap_delete_pdu(pdu);
 604             return res;
 605         }
 606
 607         coap_delete_pdu(pdu);
 608     }
 609
 610     return CA_STATUS_OK;
 611 }
 612
 613 #ifndef SINGLE_THREAD
 614 static void CASendThreadProcess(void *threadData)
 615 {
 616     CAData_t *data = (CAData_t *) threadData;
 617     CAProcessSendData(data);
 618 }
 619
 620 #endif
 621
 622 /*
 623  * If a second message arrives with the same token and the other address
 624  * family, drop it.  Typically, IPv6 beats IPv4, so the IPv4 message is dropped.
 625  */
 626 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *ep, uint16_t id)
 627 {
 628     if (!ep)
 629     {
 630         return true;
 631     }
 632     if (ep->adapter != CA_ADAPTER_IP)
 633     {
 634         return false;
 635     }
 636     if (!caglobals.ip.dualstack)
 637     {
 638         return false;
 639     }
 640
 641     bool ret = false;
 642     CATransportFlags_t familyFlags = ep->flags & CA_IPFAMILY_MASK;
 643
 644     for (size_t i = 0; i < sizeof(history->items) / sizeof(history->items[0]); i++)
 645     {
 646         CAHistoryItem_t *item = &(history->items[i]);
 647         if (id == item->messageId)
 648         {
 649             if ((familyFlags ^ item->flags) == CA_IPFAMILY_MASK)
 650             {
 651                 OIC_LOG_V(INFO, TAG, "IPv%c duplicate message ignored",
 652                                             familyFlags & CA_IPV6 ? '6' : '4');
 653                 ret = true;
 654                 break;
 655             }
 656         }
 657     }
 658
 659     history->items[history->nextIndex].flags = familyFlags;
 660     history->items[history->nextIndex].messageId = id;
 661     if (++history->nextIndex >= HISTORYSIZE)
 662     {
 663         history->nextIndex = 0;
 664     }
 665
 666     return ret;
 667 }
 668
 669 static void CAReceivedPacketCallback(const CASecureEndpoint_t *sep,
 670                                      const void *data, uint32_t dataLen)
 671 {
 672     OIC_LOG(DEBUG, TAG, "IN");
 673     VERIFY_NON_NULL_VOID(sep, TAG, "remoteEndpoint");
 674     VERIFY_NON_NULL_VOID(data, TAG, "data");
 675
 676     OIC_LOG(DEBUG, TAG, "received pdu data :");
 677     OIC_LOG_BUFFER(DEBUG, TAG,  data, dataLen);
 678
 679     uint32_t code = CA_NOT_FOUND;
 680     CAData_t *cadata = NULL;
 681
 682     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code,
 683                                                 &(sep->endpoint));
 684     if (NULL == pdu)
 685     {
 686         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 687         return;
 688     }
 689
 690     OIC_LOG_V(DEBUG, TAG, "code = %d", code);
 691     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 692     {
 693         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_REQUEST_DATA);
 694         if (!cadata)
 695         {
 696             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 697             coap_delete_pdu(pdu);
 698             return;
 699         }
 700     }
 701     else
 702     {
 703         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_RESPONSE_DATA);
 704         if (!cadata)
 705         {
 706             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 707             coap_delete_pdu(pdu);
 708             return;
 709         }
 710
 711 #ifdef TCP_ADAPTER
 712         if (CA_ADAPTER_TCP == sep->endpoint.adapter)
 713         {
 714             OIC_LOG(INFO, TAG, "retransmission is not supported");
 715         }
 716         else
 717 #endif
 718         {
 719             // for retransmission
 720             void *retransmissionPdu = NULL;
 721             CARetransmissionReceivedData(&g_retransmissionContext, cadata->remoteEndpoint, pdu->hdr,
 722                                          pdu->length, &retransmissionPdu);
 723
 724             // get token from saved data in retransmission list
 725             if (retransmissionPdu && CA_EMPTY == code)
 726             {
 727                 if (cadata->responseInfo)
 728                 {
 729                     CAInfo_t *info = &cadata->responseInfo->info;
 730                     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *)retransmissionPdu,
 731                                                        info, &(sep->endpoint));
 732                     if (CA_STATUS_OK != res)
 733                     {
 734                         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 735                         OICFree(info->token);
 736                         info->tokenLength = 0;
 737                     }
 738                 }
 739             }
 740             OICFree(retransmissionPdu);
 741         }
 742     }
 743
 744     cadata->type = SEND_TYPE_UNICAST;
 745
 746 #ifdef SINGLE_THREAD
 747     CAProcessReceivedData(cadata);
 748 #else
 749 #ifdef WITH_BWT
 750     if (CA_ADAPTER_GATT_BTLE != sep->endpoint.adapter
 751 #ifdef TCP_ADAPTER
 752             && CA_ADAPTER_TCP != sep->endpoint.adapter
 753 #endif
 754             )
 755     {
 756         CAResult_t res = CAReceiveBlockWiseData(pdu, &(sep->endpoint), cadata, dataLen);
 757         if (CA_NOT_SUPPORTED == res)
 758         {
 759             OIC_LOG(ERROR, TAG, "this message does not have block option");
 760             CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 761         }
 762         else
 763         {
 764             CADestroyData(cadata, sizeof(CAData_t));
 765         }
 766     }
 767     else
 768 #endif
 769     {
 770         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 771     }
 772 #endif
 773
 774     coap_delete_pdu(pdu);
 775
 776     OIC_LOG(DEBUG, TAG, "OUT");
 777 }
 778
 779 static void CANetworkChangedCallback(const CAEndpoint_t *info, CANetworkStatus_t status)
 780 {
 781     (void)info;
 782     (void)status;
 783     OIC_LOG(DEBUG, TAG, "IN");
 784
 785     OIC_LOG(DEBUG, TAG, "OUT");
 786 }
 787
 788 void CAHandleRequestResponseCallbacks()
 789 {
 790 #ifdef SINGLE_THREAD
 791     CAReadData();
 792     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 793 #else
 794 #ifdef SINGLE_HANDLE
 795     // parse the data and call the callbacks.
 796     // #1 parse the data
 797     // #2 get endpoint
 798
 799     ca_mutex_lock(g_receiveThread.threadMutex);
 800
 801     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 802
 803     ca_mutex_unlock(g_receiveThread.threadMutex);
 804
 805     if (NULL == item)
 806     {
 807         return;
 808     }
 809
 810     // get values
 811     void *msg = item->msg;
 812
 813     if (NULL == msg)
 814     {
 815         return;
 816     }
 817
 818     // get endpoint
 819     CAData_t *td = (CAData_t *) msg;
 820
 821     if (td->requestInfo && g_requestHandler)
 822     {
 823         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 824         g_requestHandler(td->remoteEndpoint, td->requestInfo);
 825     }
 826     else if (td->responseInfo && g_responseHandler)
 827     {
 828         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 829         g_responseHandler(td->remoteEndpoint, td->responseInfo);
 830     }
 831     else if (td->errorInfo && g_errorHandler)
 832     {
 833         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 834         g_errorHandler(td->remoteEndpoint, td->errorInfo);
 835     }
 836
 837     CADestroyData(msg, sizeof(CAData_t));
 838     OICFree(item);
 839
 840 #endif /* SINGLE_HANDLE */
 841 #endif
 842 }
 843
 844 static CAData_t* CAPrepareSendData(const CAEndpoint_t *endpoint, const void *sendData,
 845                                    CADataType_t dataType)
 846 {
 847     OIC_LOG(DEBUG, TAG, "CAPrepareSendData IN");
 848
 849     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 850     if (!cadata)
 851     {
 852         OIC_LOG(ERROR, TAG, "memory allocation failed");
 853         return NULL;
 854     }
 855
 856     if(CA_REQUEST_DATA == dataType)
 857     {
 858         // clone request info
 859         CARequestInfo_t *request = CACloneRequestInfo((CARequestInfo_t *)sendData);
 860
 861         if(!request)
 862         {
 863             OIC_LOG(ERROR, TAG, "CACloneRequestInfo failed");
 864             OICFree(cadata);
 865             return NULL;
 866         }
 867
 868         cadata->type = request->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 869         cadata->requestInfo =  request;
 870     }
 871     else if(CA_RESPONSE_DATA == dataType)
 872     {
 873         // clone response info
 874         CAResponseInfo_t *response = CACloneResponseInfo((CAResponseInfo_t *)sendData);
 875
 876         if(!response)
 877         {
 878             OIC_LOG(ERROR, TAG, "CACloneResponseInfo failed");
 879             OICFree(cadata);
 880             return NULL;
 881         }
 882
 883         cadata->type = response->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 884         cadata->responseInfo = response;
 885     }
 886     else
 887     {
 888         OIC_LOG(ERROR, TAG, "CAPrepareSendData unknown data type");
 889         OICFree(cadata);
 890         return NULL;
 891     }
 892
 893     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 894     if (!ep)
 895     {
 896         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 897         CADestroyData(cadata, sizeof(CAData_t));
 898         return NULL;
 899     }
 900
 901     cadata->remoteEndpoint = ep;
 902     cadata->dataType = dataType;
 903     return cadata;
 904 }
 905
 906 CAResult_t CADetachRequestMessage(const CAEndpoint_t *object, const CARequestInfo_t *request)
 907 {
 908     OIC_LOG(DEBUG, TAG, "IN");
 909
 910     VERIFY_NON_NULL(object, TAG, "object");
 911     VERIFY_NON_NULL(request, TAG, "request");
 912
 913     if (false == CAIsSelectedNetworkAvailable())
 914     {
 915         return CA_STATUS_FAILED;
 916     }
 917
 918 #ifdef ARDUINO
 919     // If max retransmission queue is reached, then don't handle new request
 920     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 921     {
 922         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 923         return CA_SEND_FAILED;
 924     }
 925 #endif /* ARDUINO */
 926
 927     CAData_t *data = CAPrepareSendData(object, request, CA_REQUEST_DATA);
 928     if(!data)
 929     {
 930         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 931         return CA_MEMORY_ALLOC_FAILED;
 932     }
 933
 934 #ifdef SINGLE_THREAD
 935     CAResult_t result = CAProcessSendData(data);
 936     if(CA_STATUS_OK != result)
 937     {
 938         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
 939         return result;
 940     }
 941
 942     CADestroyData(data, sizeof(CAData_t));
 943 #else
 944 #ifdef WITH_BWT
 945     if (CA_ADAPTER_GATT_BTLE != object->adapter
 946 #ifdef TCP_ADAPTER
 947             && CA_ADAPTER_TCP != object->adapter
 948 #endif
 949             )
 950     {
 951         // send block data
 952         CAResult_t res = CASendBlockWiseData(data);
 953         if(CA_NOT_SUPPORTED == res)
 954         {
 955             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
 956             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 957             return CA_STATUS_OK;
 958         }
 959         else
 960         {
 961             CADestroyData(data, sizeof(CAData_t));
 962         }
 963         return res;
 964     }
 965     else
 966 #endif
 967     {
 968         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 969     }
 970 #endif
 971
 972     OIC_LOG(DEBUG, TAG, "OUT");
 973     return CA_STATUS_OK;
 974 }
 975
 976 CAResult_t CADetachResponseMessage(const CAEndpoint_t *object,
 977                                    const CAResponseInfo_t *response)
 978 {
 979     OIC_LOG(DEBUG, TAG, "IN");
 980     VERIFY_NON_NULL(object, TAG, "object");
 981     VERIFY_NON_NULL(response, TAG, "response");
 982
 983     if (false == CAIsSelectedNetworkAvailable())
 984     {
 985         return CA_STATUS_FAILED;
 986     }
 987
 988     CAData_t *data = CAPrepareSendData(object, response, CA_RESPONSE_DATA);
 989     if(!data)
 990     {
 991         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 992         return CA_MEMORY_ALLOC_FAILED;
 993     }
 994
 995 #ifdef SINGLE_THREAD
 996     CAResult_t result = CAProcessSendData(data);
 997     if(result != CA_STATUS_OK)
 998     {
 999         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
1000         return result;
1001     }
1002
1003     CADestroyData(data, sizeof(CAData_t));
1004 #else
1005 #ifdef WITH_BWT
1006     if (CA_ADAPTER_GATT_BTLE != object->adapter
1007 #ifdef TCP_ADAPTER
1008             && CA_ADAPTER_TCP != object->adapter
1009 #endif
1010             )
1011     {
1012         // send block data
1013         CAResult_t res = CASendBlockWiseData(data);
1014         if(CA_NOT_SUPPORTED == res)
1015         {
1016             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
1017             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1018             return CA_STATUS_OK;
1019         }
1020         else
1021         {
1022             CADestroyData(data, sizeof(CAData_t));
1023         }
1024         return res;
1025     }
1026     else
1027 #endif
1028     {
1029         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1030     }
1031 #endif
1032
1033     OIC_LOG(DEBUG, TAG, "OUT");
1034     return CA_STATUS_OK;
1035 }
1036
1037 CAResult_t CADetachMessageResourceUri(const CAURI_t resourceUri, const CAToken_t token,
1038                                       uint8_t tokenLength, const CAHeaderOption_t *options,
1039                                       uint8_t numOptions)
1040 {
1041     (void)resourceUri;
1042     (void)token;
1043     (void)tokenLength;
1044     (void)options;
1045     (void)numOptions;
1046     return CA_NOT_SUPPORTED;
1047 }
1048
1049 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
1050                              CAErrorCallback errorHandler)
1051 {
1052     OIC_LOG(DEBUG, TAG, "IN");
1053     g_requestHandler = ReqHandler;
1054     g_responseHandler = RespHandler;
1055     g_errorHandler = errorHandler;
1056     OIC_LOG(DEBUG, TAG, "OUT");
1057 }
1058
1059 CAResult_t CAInitializeMessageHandler()
1060 {
1061     OIC_LOG(DEBUG, TAG, "IN");
1062     CASetPacketReceivedCallback(CAReceivedPacketCallback);
1063
1064     CASetNetworkChangeCallback(CANetworkChangedCallback);
1065     CASetErrorHandleCallback(CAErrorHandler);
1066
1067 #ifndef SINGLE_THREAD
1068     // create thread pool
1069     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
1070
1071     if (CA_STATUS_OK != res)
1072     {
1073         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
1074         return res;
1075     }
1076
1077     // send thread initialize
1078     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
1079                                                    CASendThreadProcess, CADestroyData))
1080     {
1081         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
1082         return CA_STATUS_FAILED;
1083     }
1084
1085     // start send thread
1086     res = CAQueueingThreadStart(&g_sendThread);
1087
1088     if (CA_STATUS_OK != res)
1089     {
1090         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
1091         ca_thread_pool_free(g_threadPoolHandle);
1092         g_threadPoolHandle = NULL;
1093         return res;
1094     }
1095
1096     // receive thread initialize
1097     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
1098                                                    CAReceiveThreadProcess, CADestroyData))
1099     {
1100         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
1101         return CA_STATUS_FAILED;
1102     }
1103
1104 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1105     // start receive thread
1106     res = CAQueueingThreadStart(&gReceiveThread);
1107
1108     if (res != CA_STATUS_OK)
1109     {
1110         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
1111         return res;
1112     }
1113 #endif /* SINGLE_HANDLE */
1114
1115     // retransmission initialize
1116     CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle, CASendUnicastData,
1117                                CATimeoutCallback, NULL);
1118
1119 #ifdef WITH_BWT
1120     // block-wise transfer initialize
1121     CAInitializeBlockWiseTransfer(CAAddDataToSendThread, CAAddDataToReceiveThread);
1122 #endif
1123
1124     // start retransmission
1125     res = CARetransmissionStart(&g_retransmissionContext);
1126
1127     if (CA_STATUS_OK != res)
1128     {
1129         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
1130         return res;
1131     }
1132
1133     // initialize interface adapters by controller
1134     CAInitializeAdapters(g_threadPoolHandle);
1135 #else
1136     // retransmission initialize
1137     CARetransmissionInitialize(&g_retransmissionContext, NULL, CASendUnicastData,
1138                                CATimeoutCallback, NULL);
1139     CAInitializeAdapters();
1140 #endif
1141
1142     OIC_LOG(DEBUG, TAG, "OUT");
1143     return CA_STATUS_OK;
1144 }
1145
1146 void CATerminateMessageHandler()
1147 {
1148     OIC_LOG(DEBUG, TAG, "IN");
1149 #ifndef SINGLE_THREAD
1150     CATransportAdapter_t connType;
1151     u_arraylist_t *list = CAGetSelectedNetworkList();
1152     uint32_t length = u_arraylist_length(list);
1153
1154     uint32_t i = 0;
1155     for (i = 0; i < length; i++)
1156     {
1157         void* ptrType = u_arraylist_get(list, i);
1158
1159         if (NULL == ptrType)
1160         {
1161             continue;
1162         }
1163
1164         connType = *(CATransportAdapter_t *)ptrType;
1165         CAStopAdapter(connType);
1166     }
1167
1168     // stop retransmission
1169     if (NULL != g_retransmissionContext.threadMutex)
1170     {
1171         CARetransmissionStop(&g_retransmissionContext);
1172     }
1173
1174     // stop thread
1175     // delete thread data
1176     if (NULL != g_sendThread.threadMutex)
1177     {
1178         CAQueueingThreadStop(&g_sendThread);
1179     }
1180
1181     // stop thread
1182     // delete thread data
1183     if (NULL != g_receiveThread.threadMutex)
1184     {
1185 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1186         CAQueueingThreadStop(&gReceiveThread);
1187 #endif /* SINGLE_HANDLE */
1188     }
1189
1190     // destroy thread pool
1191     if (NULL != g_threadPoolHandle)
1192     {
1193         ca_thread_pool_free(g_threadPoolHandle);
1194         g_threadPoolHandle = NULL;
1195     }
1196
1197 #ifdef WITH_BWT
1198     CATerminateBlockWiseTransfer();
1199 #endif
1200     CARetransmissionDestroy(&g_retransmissionContext);
1201     CAQueueingThreadDestroy(&g_sendThread);
1202     CAQueueingThreadDestroy(&g_receiveThread);
1203
1204     // terminate interface adapters by controller
1205     CATerminateAdapters();
1206 #else
1207     // terminate interface adapters by controller
1208     CATerminateAdapters();
1209
1210     // stop retransmission
1211     CARetransmissionStop(&g_retransmissionContext);
1212     CARetransmissionDestroy(&g_retransmissionContext);
1213 #endif
1214
1215     OIC_LOG(DEBUG, TAG, "OUT");
1216 }
1217
1218 void CALogPDUInfo(coap_pdu_t *pdu, const CAEndpoint_t *endpoint)
1219 {
1220     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1221
1222     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
1223
1224 #ifdef TCP_ADAPTER
1225     if (CA_ADAPTER_TCP == endpoint->adapter)
1226     {
1227         OIC_LOG(DEBUG, TAG, "pdu header data :");
1228         OIC_LOG_BUFFER(DEBUG, TAG,  pdu->hdr, pdu->length);
1229     }
1230     else
1231 #endif
1232     {
1233         OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->hdr->coap_hdr_udp_t.type);
1234
1235         OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->hdr->coap_hdr_udp_t.code);
1236
1237         OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
1238
1239         OIC_LOG_BUFFER(DEBUG, TAG, pdu->hdr->coap_hdr_udp_t.token,
1240                        pdu->hdr->coap_hdr_udp_t.token_length);
1241     }
1242 }
1243
1244 static void CALogPayloadInfo(CAInfo_t *info)
1245 {
1246     if(info)
1247     {
1248         if (info->options)
1249         {
1250             for (uint32_t i = 0; i < info->numOptions; i++)
1251             {
1252                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", info->options[i].optionID);
1253
1254                 OIC_LOG_V(DEBUG, TAG, "list: %s", info->options[i].optionData);
1255             }
1256         }
1257
1258         if (info->payload)
1259         {
1260             OIC_LOG_V(DEBUG, TAG, "payload: %p(%u)", info->payload,
1261                       info->payloadSize);
1262         }
1263
1264         if (info->token)
1265         {
1266             OIC_LOG(DEBUG, TAG, "token:");
1267             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) info->token,
1268                            info->tokenLength);
1269         }
1270         OIC_LOG_V(DEBUG, TAG, "msgID: %d", info->messageId);
1271     }
1272     else
1273     {
1274         OIC_LOG(DEBUG, TAG, "info is NULL, cannot output log data");
1275     }
1276 }
1277
1278 void CAErrorHandler(const CAEndpoint_t *endpoint,
1279                     const void *data, uint32_t dataLen,
1280                     CAResult_t result)
1281 {
1282     OIC_LOG(DEBUG, TAG, "CAErrorHandler IN");
1283
1284 #ifndef SINGLE_THREAD
1285
1286     VERIFY_NON_NULL_VOID(endpoint, TAG, "remoteEndpoint");
1287     VERIFY_NON_NULL_VOID(data, TAG, "data");
1288
1289     uint32_t code = CA_NOT_FOUND;
1290     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1291     //Get PDU data
1292     coap_pdu_t *pdu = (coap_pdu_t *)CAParsePDU((const char *)data, dataLen, &code, endpoint);
1293     if (NULL == pdu)
1294     {
1295         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1296         return;
1297     }
1298
1299     CAData_t *cadata = CAGenerateHandlerData(endpoint, NULL, pdu, CA_ERROR_DATA);
1300     if(!cadata)
1301     {
1302         OIC_LOG(ERROR, TAG, "CAErrorHandler, CAGenerateHandlerData failed!");
1303         coap_delete_pdu(pdu);
1304         return;
1305     }
1306
1307     cadata->errorInfo->result = result;
1308
1309     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1310     coap_delete_pdu(pdu);
1311 #endif
1312
1313     OIC_LOG(DEBUG, TAG, "CAErrorHandler OUT");
1314     return;
1315 }
1316
1317 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info, CAResult_t result)
1318 {
1319     OIC_LOG(DEBUG, TAG, "CASendErrorInfo IN");
1320 #ifndef SINGLE_THREAD
1321     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1322     if (!cadata)
1323     {
1324         OIC_LOG(ERROR, TAG, "memory allocation failed");
1325         return;
1326     }
1327
1328     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
1329     if (!ep)
1330     {
1331         OIC_LOG(ERROR, TAG, "endpoint clone failed");
1332         OICFree(cadata);
1333         return;
1334     }
1335
1336     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
1337     if (!errorInfo)
1338     {
1339         OICFree(cadata);
1340         CAFreeEndpoint(ep);
1341         return;
1342     }
1343
1344     CAResult_t res = CACloneInfo(info, &errorInfo->info);
1345     if (CA_STATUS_OK != res)
1346     {
1347         OICFree(cadata);
1348         CAFreeEndpoint(ep);
1349         return;
1350     }
1351
1352     errorInfo->result = result;
1353     cadata->remoteEndpoint = ep;
1354     cadata->errorInfo = errorInfo;
1355     cadata->dataType = CA_ERROR_DATA;
1356
1357     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1358 #endif
1359     OIC_LOG(DEBUG, TAG, "CASendErrorInfo OUT");
1360 }