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 #ifndef WITH_UPSTREAM_LIBCOAP
  32 #include "coap/config.h"
  33 #endif
  34 #include "oic_malloc.h"
  35 #include "canetworkconfigurator.h"
  36 #include "caadapterutils.h"
  37 #include "cainterfacecontroller.h"
  38 #include "caretransmission.h"
  39 #include "oic_string.h"
  40
  41 #ifdef WITH_BWT
  42 #include "cablockwisetransfer.h"
  43 #endif
  44
  45 #ifndef  SINGLE_THREAD
  46 #include "uqueue.h"
  47 #include "cathreadpool.h" /* for thread pool */
  48 #include "caqueueingthread.h"
  49
  50 #define SINGLE_HANDLE
  51 #define MAX_THREAD_POOL_SIZE    20
  52
  53 // thread pool handle
  54 static ca_thread_pool_t g_threadPoolHandle = NULL;
  55
  56 // message handler main thread
  57 static CAQueueingThread_t g_sendThread;
  58 static CAQueueingThread_t g_receiveThread;
  59
  60 #else
  61 #define CA_MAX_RT_ARRAY_SIZE    3
  62 #endif  // SINGLE_THREAD
  63
  64 #define TAG "OIC_CA_MSG_HANDLE"
  65
  66 static CARetransmission_t g_retransmissionContext;
  67
  68 // handler field
  69 static CARequestCallback g_requestHandler = NULL;
  70 static CAResponseCallback g_responseHandler = NULL;
  71 static CAErrorCallback g_errorHandler = NULL;
  72 static CANetworkMonitorCallback g_nwMonitorHandler = NULL;
  73
  74 static void CAErrorHandler(const CAEndpoint_t *endpoint,
  75                            const void *data, size_t dataLen,
  76                            CAResult_t result);
  77
  78 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
  79                                        const CARemoteId_t *identity,
  80                                        const void *data, CADataType_t dataType);
  81
  82 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info,
  83                             CAResult_t result);
  84
  85 #ifdef SINGLE_THREAD
  86 static void CAProcessReceivedData(CAData_t *data);
  87 #endif
  88 static void CADestroyData(void *data, uint32_t size);
  89 static void CALogPayloadInfo(CAInfo_t *info);
  90 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *endpoint, uint16_t id,
  91                                 CAToken_t token, uint8_t tokenLength);
  92
  93 /**
  94  * print send / receive message of CoAP.
  95  * @param[in] data      CA information which has send/receive message and endpoint.
  96  * @param[in] pdu       CoAP pdu low data.
  97  */
  98 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu);
  99
 100 #ifdef WITH_BWT
 101 void CAAddDataToSendThread(CAData_t *data)
 102 {
 103     VERIFY_NON_NULL_VOID(data, TAG, "data");
 104
 105     // add thread
 106     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 107 }
 108
 109 void CAAddDataToReceiveThread(CAData_t *data)
 110 {
 111     VERIFY_NON_NULL_VOID(data, TAG, "data");
 112
 113     // add thread
 114     CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
 115 }
 116 #endif
 117
 118 static bool CAIsSelectedNetworkAvailable()
 119 {
 120     u_arraylist_t *list = CAGetSelectedNetworkList();
 121     if (!list || u_arraylist_length(list) == 0)
 122     {
 123         OIC_LOG(ERROR, TAG, "No selected network");
 124         return false;
 125     }
 126
 127     return true;
 128 }
 129
 130 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
 131                                        const CARemoteId_t *identity,
 132                                        const void *data, CADataType_t dataType)
 133 {
 134     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData IN");
 135     CAInfo_t *info = NULL;
 136     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 137     if (!cadata)
 138     {
 139         OIC_LOG(ERROR, TAG, "memory allocation failed");
 140         return NULL;
 141     }
 142 #ifdef SINGLE_THREAD
 143     CAEndpoint_t* ep = endpoint;
 144 #else
 145     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 146     if (!ep)
 147     {
 148         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 149         goto exit;
 150     }
 151 #endif
 152
 153     OIC_LOG_V(DEBUG, TAG, "address : %s", ep->addr);
 154
 155     if (CA_RESPONSE_DATA == dataType)
 156     {
 157         CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 158         if (!resInfo)
 159         {
 160             OIC_LOG(ERROR, TAG, "memory allocation failed");
 161             goto exit;
 162         }
 163
 164         CAResult_t result = CAGetResponseInfoFromPDU(data, resInfo, endpoint);
 165         if (CA_STATUS_OK != result)
 166         {
 167             OIC_LOG(ERROR, TAG, "CAGetResponseInfoFromPDU Failed");
 168             CADestroyResponseInfoInternal(resInfo);
 169             goto exit;
 170         }
 171         cadata->responseInfo = resInfo;
 172         info = &resInfo->info;
 173         if (identity)
 174         {
 175             info->identity = *identity;
 176         }
 177         OIC_LOG(DEBUG, TAG, "Response Info :");
 178         CALogPayloadInfo(info);
 179     }
 180     else if (CA_REQUEST_DATA == dataType)
 181     {
 182         CARequestInfo_t* reqInfo = (CARequestInfo_t*)OICCalloc(1, sizeof(CARequestInfo_t));
 183         if (!reqInfo)
 184         {
 185             OIC_LOG(ERROR, TAG, "memory allocation failed");
 186             goto exit;
 187         }
 188
 189         CAResult_t result = CAGetRequestInfoFromPDU(data, endpoint, reqInfo);
 190         if (CA_STATUS_OK != result)
 191         {
 192             OIC_LOG(ERROR, TAG, "CAGetRequestInfoFromPDU failed");
 193             CADestroyRequestInfoInternal(reqInfo);
 194             goto exit;
 195         }
 196
 197         if (CADropSecondMessage(&caglobals.ca.requestHistory, endpoint, reqInfo->info.messageId,
 198                                 reqInfo->info.token, reqInfo->info.tokenLength))
 199         {
 200             OIC_LOG(INFO, TAG, "Second Request with same Token, Drop it");
 201             CADestroyRequestInfoInternal(reqInfo);
 202             goto exit;
 203         }
 204
 205         cadata->requestInfo = reqInfo;
 206         info = &reqInfo->info;
 207         if (identity)
 208         {
 209             info->identity = *identity;
 210         }
 211         OIC_LOG(DEBUG, TAG, "Request Info :");
 212         CALogPayloadInfo(info);
 213    }
 214     else if (CA_ERROR_DATA == dataType)
 215     {
 216         CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
 217         if (!errorInfo)
 218         {
 219             OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 220             goto exit;
 221         }
 222
 223         CAResult_t result = CAGetErrorInfoFromPDU(data, endpoint, errorInfo);
 224         if (CA_STATUS_OK != result)
 225         {
 226             OIC_LOG(ERROR, TAG, "CAGetErrorInfoFromPDU failed");
 227             OICFree(errorInfo);
 228             goto exit;
 229         }
 230
 231         cadata->errorInfo = errorInfo;
 232         info = &errorInfo->info;
 233         if (identity)
 234         {
 235             info->identity = *identity;
 236         }
 237         OIC_LOG(DEBUG, TAG, "error Info :");
 238         CALogPayloadInfo(info);
 239     }
 240
 241     cadata->remoteEndpoint = ep;
 242     cadata->dataType = dataType;
 243
 244     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData OUT");
 245     return cadata;
 246
 247 exit:
 248     OICFree(cadata);
 249 #ifndef SINGLE_THREAD
 250     CAFreeEndpoint(ep);
 251 #endif
 252     return NULL;
 253 }
 254
 255 static void CATimeoutCallback(const CAEndpoint_t *endpoint, const void *pdu, uint32_t size)
 256 {
 257     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint");
 258     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 259 #ifdef SINGLE_THREAD
 260     CAEndpoint_t* ep = endpoint;
 261 #else
 262     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 263     if (!ep)
 264     {
 265         OIC_LOG(ERROR, TAG, "clone failed");
 266         return;
 267     }
 268 #endif
 269
 270     CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 271
 272     if (!resInfo)
 273     {
 274         OIC_LOG(ERROR, TAG, "calloc failed");
 275 #ifndef SINGLE_THREAD
 276         CAFreeEndpoint(ep);
 277 #endif
 278         return;
 279     }
 280
 281     resInfo->result = CA_RETRANSMIT_TIMEOUT;
 282     resInfo->info.type = CAGetMessageTypeFromPduBinaryData(pdu, size);
 283     resInfo->info.messageId = CAGetMessageIdFromPduBinaryData(pdu, size);
 284
 285     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_transport_t *) pdu, &(resInfo->info),
 286                                        endpoint);
 287     if (CA_STATUS_OK != res)
 288     {
 289         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 290         CADestroyResponseInfoInternal(resInfo);
 291 #ifndef SINGLE_THREAD
 292         CAFreeEndpoint(ep);
 293 #endif
 294         return;
 295     }
 296
 297     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 298     if (NULL == cadata)
 299     {
 300         OIC_LOG(ERROR, TAG, "memory allocation failed !");
 301 #ifndef SINGLE_THREAD
 302         CAFreeEndpoint(ep);
 303 #endif
 304         CADestroyResponseInfoInternal(resInfo);
 305         return;
 306     }
 307
 308     cadata->type = SEND_TYPE_UNICAST;
 309     cadata->remoteEndpoint = ep;
 310     cadata->requestInfo = NULL;
 311     cadata->responseInfo = resInfo;
 312
 313 #ifdef WITH_BWT
 314     if (CAIsSupportedBlockwiseTransfer(endpoint->adapter))
 315     {
 316         res = CARemoveBlockDataFromListWithSeed(resInfo->info.token, resInfo->info.tokenLength,
 317                                                 endpoint->addr, endpoint->port);
 318         if (CA_STATUS_OK != res)
 319         {
 320             OIC_LOG(ERROR, TAG, "CARemoveBlockDataFromListWithSeed failed");
 321         }
 322     }
 323 #endif // WITH_BWT
 324
 325 #ifdef SINGLE_THREAD
 326     CAProcessReceivedData(cadata);
 327 #else
 328     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 329 #endif
 330 }
 331
 332 static void CADestroyData(void *data, uint32_t size)
 333 {
 334     OIC_LOG(DEBUG, TAG, "CADestroyData IN");
 335     if ((size_t)size < sizeof(CAData_t))
 336     {
 337         OIC_LOG_V(ERROR, TAG, "Destroy data too small %p %d", data, size);
 338     }
 339     CAData_t *cadata = (CAData_t *) data;
 340
 341     if (NULL == cadata)
 342     {
 343         OIC_LOG(ERROR, TAG, "cadata is NULL");
 344         return;
 345     }
 346 #ifndef SINGLE_THREAD
 347     if (NULL != cadata->remoteEndpoint)
 348     {
 349         CAFreeEndpoint(cadata->remoteEndpoint);
 350     }
 351 #endif
 352
 353     if (NULL != cadata->requestInfo)
 354     {
 355         CADestroyRequestInfoInternal((CARequestInfo_t *) cadata->requestInfo);
 356     }
 357
 358     if (NULL != cadata->responseInfo)
 359     {
 360         CADestroyResponseInfoInternal((CAResponseInfo_t *) cadata->responseInfo);
 361     }
 362
 363     if (NULL != cadata->errorInfo)
 364     {
 365         CADestroyErrorInfoInternal(cadata->errorInfo);
 366     }
 367
 368     OICFree(cadata);
 369     OIC_LOG(DEBUG, TAG, "CADestroyData OUT");
 370 }
 371
 372 #ifdef SINGLE_THREAD
 373 static void CAProcessReceivedData(CAData_t *data)
 374 {
 375     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData IN");
 376     if (!data)
 377     {
 378         OIC_LOG(ERROR, TAG, "thread data error!!");
 379         return;
 380     }
 381
 382     // parse the data and call the callbacks.
 383     // #1 parse the data
 384     // #2 get endpoint
 385     CAEndpoint_t *rep = (CAEndpoint_t *)(data->remoteEndpoint);
 386     if (!rep)
 387     {
 388         OIC_LOG(ERROR, TAG, "remoteEndpoint error!!");
 389         return;
 390     }
 391
 392     if (data->requestInfo && g_requestHandler)
 393     {
 394         g_requestHandler(rep, data->requestInfo);
 395     }
 396     else if (data->responseInfo && g_responseHandler)
 397     {
 398         g_responseHandler(rep, data->responseInfo);
 399     }
 400     else if (data->errorInfo && g_errorHandler)
 401     {
 402         g_errorHandler(rep, data->errorInfo);
 403     }
 404
 405     CADestroyData(data, sizeof(CAData_t));
 406
 407     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData OUT");
 408 }
 409 #endif
 410
 411 #ifndef SINGLE_THREAD
 412 static void CAReceiveThreadProcess(void *threadData)
 413 {
 414 #ifndef SINGLE_HANDLE
 415     CAData_t *data = (CAData_t *) threadData;
 416     CAProcessReceivedData(data);
 417 #else
 418     (void)threadData;
 419 #endif
 420 }
 421 #endif // SINGLE_THREAD
 422
 423 static CAResult_t CAProcessMulticastData(const CAData_t *data)
 424 {
 425     VERIFY_NON_NULL(data, TAG, "data");
 426     VERIFY_NON_NULL(data->remoteEndpoint, TAG, "remoteEndpoint");
 427
 428     coap_pdu_t *pdu = NULL;
 429     CAInfo_t *info = NULL;
 430     coap_list_t *options = NULL;
 431     coap_transport_t transport = COAP_UDP;
 432     CAResult_t res = CA_SEND_FAILED;
 433
 434     if (!data->requestInfo && !data->responseInfo)
 435     {
 436         OIC_LOG(ERROR, TAG, "request or response info is empty");
 437         return res;
 438     }
 439
 440     if (data->requestInfo)
 441     {
 442         OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 443
 444         info = &data->requestInfo->info;
 445         pdu = CAGeneratePDU(CA_GET, info, data->remoteEndpoint, &options, &transport);
 446     }
 447     else if (data->responseInfo)
 448     {
 449         OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 450
 451         info = &data->responseInfo->info;
 452         pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint,
 453                             &options, &transport);
 454     }
 455
 456     if (!pdu)
 457     {
 458         OIC_LOG(ERROR,TAG,"Failed to generate multicast PDU");
 459         CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 460         coap_delete_list(options);
 461         return res;
 462     }
 463
 464 #ifdef WITH_BWT
 465     if (CAIsSupportedBlockwiseTransfer(data->remoteEndpoint->adapter))
 466     {
 467         // Blockwise transfer
 468         res = CAAddBlockOption(&pdu, info, data->remoteEndpoint, &options);
 469         if (CA_STATUS_OK != res)
 470         {
 471             OIC_LOG(DEBUG, TAG, "CAAddBlockOption has failed");
 472             goto exit;
 473         }
 474     }
 475 #endif // WITH_BWT
 476
 477     CALogPDUInfo(data, pdu);
 478
 479     res = CASendMulticastData(data->remoteEndpoint, pdu->transport_hdr, pdu->length, data->dataType);
 480     if (CA_STATUS_OK != res)
 481     {
 482         OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 483         goto exit;
 484     }
 485
 486     coap_delete_list(options);
 487     coap_delete_pdu(pdu);
 488     return res;
 489
 490 exit:
 491     CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 492     coap_delete_list(options);
 493     coap_delete_pdu(pdu);
 494     return res;
 495 }
 496
 497 static CAResult_t CAProcessSendData(const CAData_t *data)
 498 {
 499     VERIFY_NON_NULL(data, TAG, "data");
 500     VERIFY_NON_NULL(data->remoteEndpoint, TAG, "remoteEndpoint");
 501
 502     CAResult_t res = CA_STATUS_FAILED;
 503
 504     CASendDataType_t type = data->type;
 505
 506     coap_pdu_t *pdu = NULL;
 507     CAInfo_t *info = NULL;
 508     coap_list_t *options = NULL;
 509     coap_transport_t transport = COAP_UDP;
 510
 511     if (SEND_TYPE_UNICAST == type)
 512     {
 513         OIC_LOG(DEBUG,TAG,"Unicast message");
 514
 515 #ifdef ROUTING_GATEWAY
 516         /*
 517          * When forwarding a packet, do not attempt retransmission as its the responsibility of
 518          * packet originator node
 519          */
 520         bool skipRetransmission = false;
 521 #endif
 522
 523         if (NULL != data->requestInfo)
 524         {
 525             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 526
 527             info = &data->requestInfo->info;
 528 #ifdef ROUTING_GATEWAY
 529             skipRetransmission = data->requestInfo->info.skipRetransmission;
 530 #endif
 531             pdu = CAGeneratePDU(data->requestInfo->method, info, data->remoteEndpoint,
 532                                 &options, &transport);
 533         }
 534         else if (NULL != data->responseInfo)
 535         {
 536             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 537
 538             info = &data->responseInfo->info;
 539 #ifdef ROUTING_GATEWAY
 540             skipRetransmission = data->responseInfo->info.skipRetransmission;
 541 #endif
 542             pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint,
 543                                 &options, &transport);
 544         }
 545         else
 546         {
 547             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 548             return CA_STATUS_INVALID_PARAM;
 549         }
 550
 551         // interface controller function call.
 552         if (NULL != pdu)
 553         {
 554 #ifdef WITH_BWT
 555             if (CAIsSupportedBlockwiseTransfer(data->remoteEndpoint->adapter))
 556             {
 557                 // Blockwise transfer
 558                 if (NULL != info)
 559                 {
 560                     CAResult_t res = CAAddBlockOption(&pdu, info,
 561                                                       data->remoteEndpoint,
 562                                                       &options);
 563                     if (CA_STATUS_OK != res)
 564                     {
 565                         OIC_LOG(INFO, TAG, "to write block option has failed");
 566                         CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 567                         coap_delete_list(options);
 568                         coap_delete_pdu(pdu);
 569                         return res;
 570                     }
 571                 }
 572             }
 573 #endif // WITH_BWT
 574             CALogPDUInfo(data, pdu);
 575
 576             OIC_LOG_V(INFO, TAG, "CASendUnicastData type : %d", data->dataType);
 577             res = CASendUnicastData(data->remoteEndpoint, pdu->transport_hdr, pdu->length, data->dataType);
 578             if (CA_STATUS_OK != res)
 579             {
 580                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 581                 CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 582                 coap_delete_list(options);
 583                 coap_delete_pdu(pdu);
 584                 return res;
 585             }
 586
 587 #ifdef WITH_TCP
 588             if (CAIsSupportedCoAPOverTCP(data->remoteEndpoint->adapter))
 589             {
 590                 OIC_LOG(INFO, TAG, "retransmission will be not worked");
 591             }
 592             else
 593 #endif
 594 #ifdef ROUTING_GATEWAY
 595             if (!skipRetransmission)
 596 #endif
 597             {
 598                 // for retransmission
 599                 res = CARetransmissionSentData(&g_retransmissionContext,
 600                                                data->remoteEndpoint,
 601                                                data->dataType,
 602                                                pdu->transport_hdr, pdu->length);
 603                 if ((CA_STATUS_OK != res) && (CA_NOT_SUPPORTED != res))
 604                 {
 605                     //when retransmission not supported this will return CA_NOT_SUPPORTED, ignore
 606                     OIC_LOG_V(INFO, TAG, "retransmission is not enabled due to error, res : %d", res);
 607                     coap_delete_list(options);
 608                     coap_delete_pdu(pdu);
 609                     return res;
 610                 }
 611             }
 612
 613             coap_delete_list(options);
 614             coap_delete_pdu(pdu);
 615         }
 616         else
 617         {
 618             OIC_LOG(ERROR,TAG,"Failed to generate unicast PDU");
 619             CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 620             return CA_SEND_FAILED;
 621         }
 622     }
 623     else if (SEND_TYPE_MULTICAST == type)
 624     {
 625         OIC_LOG(DEBUG,TAG,"Multicast message");
 626 #ifdef WITH_TCP
 627         /*
 628          * If CoAP over TCP is enabled, the CoAP pdu wont be same for IP and other adapters.
 629          * That's why we need to generate two pdu's, one for IP and second for other transports.
 630          * Two possible cases we might have to split: a) when adapter is CA_DEFAULT_ADAPTER
 631          * b) when one of the adapter is IP adapter(ex: CA_ADAPTER_IP | CA_ADAPTER_GATT_BTLE)
 632          */
 633         if (data->remoteEndpoint->adapter == CA_DEFAULT_ADAPTER ||
 634                 (CA_ADAPTER_IP & data->remoteEndpoint->adapter &&
 635                     CA_ADAPTER_IP != data->remoteEndpoint->adapter))
 636         {
 637             if (data->remoteEndpoint->adapter == CA_DEFAULT_ADAPTER)
 638             {
 639                 data->remoteEndpoint->adapter = CA_ALL_ADAPTERS ^ CA_ADAPTER_IP;
 640             }
 641             else
 642             {
 643                 data->remoteEndpoint->adapter = data->remoteEndpoint->adapter ^ CA_ADAPTER_IP;
 644             }
 645             CAProcessMulticastData(data);
 646             data->remoteEndpoint->adapter = CA_ADAPTER_IP;
 647             CAProcessMulticastData(data);
 648         }
 649         else
 650         {
 651             CAProcessMulticastData(data);
 652         }
 653 #else
 654         CAProcessMulticastData(data);
 655 #endif
 656     }
 657
 658     return CA_STATUS_OK;
 659 }
 660
 661 #ifndef SINGLE_THREAD
 662 static void CASendThreadProcess(void *threadData)
 663 {
 664     CAData_t *data = (CAData_t *) threadData;
 665     CAProcessSendData(data);
 666 }
 667 #endif
 668
 669 /*
 670  * If a second message arrives with the same message ID, token and the other address
 671  * family, drop it.  Typically, IPv6 beats IPv4, so the IPv4 message is dropped.
 672  */
 673 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *ep, uint16_t id,
 674                                 CAToken_t token, uint8_t tokenLength)
 675 {
 676     if (!ep)
 677     {
 678         return true;
 679     }
 680     if (ep->adapter != CA_ADAPTER_IP)
 681     {
 682         return false;
 683     }
 684     if (!caglobals.ip.dualstack)
 685     {
 686         return false;
 687     }
 688
 689     if (tokenLength > CA_MAX_TOKEN_LEN)
 690     {
 691         /*
 692          * If token length is more than CA_MAX_TOKEN_LEN,
 693          * we compare the first CA_MAX_TOKEN_LEN bytes only.
 694          */
 695         tokenLength = CA_MAX_TOKEN_LEN;
 696     }
 697
 698     bool ret = false;
 699     CATransportFlags_t familyFlags = ep->flags & CA_IPFAMILY_MASK;
 700
 701     for (size_t i = 0; i < sizeof(history->items) / sizeof(history->items[0]); i++)
 702     {
 703         CAHistoryItem_t *item = &(history->items[i]);
 704         if (id == item->messageId && tokenLength == item->tokenLength
 705             && ep->ifindex == item->ifindex && memcmp(item->token, token, tokenLength) == 0)
 706         {
 707             if ((familyFlags ^ item->flags) == CA_IPFAMILY_MASK)
 708             {
 709                 OIC_LOG_V(INFO, TAG, "IPv%c duplicate message ignored",
 710                           familyFlags & CA_IPV6 ? '6' : '4');
 711                 ret = true;
 712                 break;
 713             }
 714         }
 715     }
 716
 717     history->items[history->nextIndex].flags = familyFlags;
 718     history->items[history->nextIndex].messageId = id;
 719     history->items[history->nextIndex].ifindex = ep->ifindex;
 720     if (token && tokenLength)
 721     {
 722         memcpy(history->items[history->nextIndex].token, token, tokenLength);
 723         history->items[history->nextIndex].tokenLength = tokenLength;
 724     }
 725
 726     if (++history->nextIndex >= HISTORYSIZE)
 727     {
 728         history->nextIndex = 0;
 729     }
 730
 731     return ret;
 732 }
 733
 734 static void CAReceivedPacketCallback(const CASecureEndpoint_t *sep,
 735                                      const void *data, size_t dataLen)
 736 {
 737     VERIFY_NON_NULL_VOID(sep, TAG, "remoteEndpoint");
 738     VERIFY_NON_NULL_VOID(data, TAG, "data");
 739
 740     if (0 == dataLen)
 741     {
 742         OIC_LOG(ERROR, TAG, "dataLen is zero");
 743         return;
 744     }
 745
 746     uint32_t code = CA_NOT_FOUND;
 747     CAData_t *cadata = NULL;
 748
 749     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code,
 750                                                 &(sep->endpoint));
 751     if (NULL == pdu)
 752     {
 753         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 754         goto exit;
 755     }
 756
 757     OIC_LOG_V(DEBUG, TAG, "code = %d", code);
 758     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 759     {
 760         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_REQUEST_DATA);
 761         if (!cadata)
 762         {
 763             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 764             coap_delete_pdu(pdu);
 765             goto exit;
 766         }
 767     }
 768     else
 769     {
 770         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_RESPONSE_DATA);
 771         if (!cadata)
 772         {
 773             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 774             coap_delete_pdu(pdu);
 775             goto exit;
 776         }
 777
 778 #ifdef WITH_TCP
 779         if (CAIsSupportedCoAPOverTCP(sep->endpoint.adapter))
 780         {
 781             OIC_LOG(INFO, TAG, "retransmission is not supported");
 782         }
 783         else
 784 #endif
 785         {
 786             // for retransmission
 787             void *retransmissionPdu = NULL;
 788             CARetransmissionReceivedData(&g_retransmissionContext, cadata->remoteEndpoint, pdu->transport_hdr,
 789                                          pdu->length, &retransmissionPdu);
 790
 791             // get token from saved data in retransmission list
 792             if (retransmissionPdu && CA_EMPTY == code)
 793             {
 794                 if (cadata->responseInfo)
 795                 {
 796                     CAInfo_t *info = &cadata->responseInfo->info;
 797                     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_transport_t *)retransmissionPdu,
 798                                                        info, &(sep->endpoint));
 799                     if (CA_STATUS_OK != res)
 800                     {
 801                         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 802                         OICFree(info->token);
 803                         info->tokenLength = 0;
 804                     }
 805                 }
 806             }
 807             OICFree(retransmissionPdu);
 808         }
 809     }
 810
 811     cadata->type = SEND_TYPE_UNICAST;
 812
 813     CALogPDUInfo(cadata, pdu);
 814
 815 #ifdef SINGLE_THREAD
 816     CAProcessReceivedData(cadata);
 817 #else
 818 #ifdef WITH_BWT
 819     if (CAIsSupportedBlockwiseTransfer(sep->endpoint.adapter))
 820     {
 821         CAResult_t res = CAReceiveBlockWiseData(pdu, &(sep->endpoint), cadata, dataLen);
 822         if (CA_NOT_SUPPORTED == res || CA_REQUEST_TIMEOUT == res)
 823         {
 824             OIC_LOG(DEBUG, TAG, "this message does not have block option");
 825             CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 826         }
 827         else
 828         {
 829             CADestroyData(cadata, sizeof(CAData_t));
 830         }
 831     }
 832     else
 833 #endif
 834     {
 835         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 836     }
 837 #endif // SINGLE_THREAD
 838
 839     coap_delete_pdu(pdu);
 840
 841 exit:
 842     OIC_LOG(DEBUG, TAG, "received pdu data :");
 843     OIC_LOG_BUFFER(DEBUG, TAG,  data, dataLen);
 844 }
 845
 846 void CAHandleRequestResponseCallbacks()
 847 {
 848 #ifdef SINGLE_THREAD
 849     CAReadData();
 850     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 851 #else
 852 #ifdef SINGLE_HANDLE
 853     // parse the data and call the callbacks.
 854     // #1 parse the data
 855     // #2 get endpoint
 856
 857     oc_mutex_lock(g_receiveThread.threadMutex);
 858
 859     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 860
 861     oc_mutex_unlock(g_receiveThread.threadMutex);
 862
 863     if (NULL == item || NULL == item->msg)
 864     {
 865         return;
 866     }
 867
 868     // get endpoint
 869     CAData_t *td = (CAData_t *) item->msg;
 870
 871     if (td->requestInfo && g_requestHandler)
 872     {
 873         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 874         g_requestHandler(td->remoteEndpoint, td->requestInfo);
 875     }
 876     else if (td->responseInfo && g_responseHandler)
 877     {
 878         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 879         g_responseHandler(td->remoteEndpoint, td->responseInfo);
 880     }
 881     else if (td->errorInfo && g_errorHandler)
 882     {
 883         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 884         g_errorHandler(td->remoteEndpoint, td->errorInfo);
 885     }
 886
 887     CADestroyData(item->msg, sizeof(CAData_t));
 888     OICFree(item);
 889
 890 #endif // SINGLE_HANDLE
 891 #endif // SINGLE_THREAD
 892 }
 893
 894 static CAData_t* CAPrepareSendData(const CAEndpoint_t *endpoint, const void *sendData,
 895                                    CADataType_t dataType)
 896 {
 897     OIC_LOG(DEBUG, TAG, "CAPrepareSendData IN");
 898
 899     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 900     if (!cadata)
 901     {
 902         OIC_LOG(ERROR, TAG, "memory allocation failed");
 903         return NULL;
 904     }
 905
 906     if (CA_REQUEST_DATA == dataType)
 907     {
 908 #ifdef SINGLE_THREAD
 909         CARequestInfo_t *request = (CARequestInfo_t *)sendData;
 910 #else
 911         // clone request info
 912         CARequestInfo_t *request = CACloneRequestInfo((CARequestInfo_t *)sendData);
 913         if (!request)
 914         {
 915             OIC_LOG(ERROR, TAG, "CACloneRequestInfo failed");
 916             goto exit;
 917         }
 918 #endif
 919         cadata->type = request->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 920         cadata->requestInfo =  request;
 921     }
 922     else if (CA_RESPONSE_DATA == dataType || CA_RESPONSE_FOR_RES == dataType)
 923     {
 924 #ifdef SINGLE_THREAD
 925         CAResponseInfo_t *response = (CAResponseInfo_t *)sendData;
 926 #else
 927         // clone response info
 928         CAResponseInfo_t *response = CACloneResponseInfo((CAResponseInfo_t *)sendData);
 929         if(!response)
 930         {
 931             OIC_LOG(ERROR, TAG, "CACloneResponseInfo failed");
 932             goto exit;
 933         }
 934 #endif
 935         cadata->type = response->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 936         cadata->responseInfo = response;
 937     }
 938     else
 939     {
 940         OIC_LOG(ERROR, TAG, "CAPrepareSendData unknown data type");
 941         goto exit;
 942     }
 943
 944 #ifdef SINGLE_THREAD
 945     CAEndpoint_t* ep = endpoint;
 946 #else
 947     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 948     if (!ep)
 949     {
 950         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 951         goto exit;
 952     }
 953 #endif
 954     cadata->remoteEndpoint = ep;
 955     cadata->dataType = dataType;
 956     return cadata;
 957
 958 exit:
 959 #ifndef SINGLE_THREAD
 960     CADestroyData(cadata, sizeof(CAData_t));
 961 #else
 962     OICFree(cadata);
 963 #endif
 964     return NULL;
 965 }
 966
 967 CAResult_t CADetachSendMessage(const CAEndpoint_t *endpoint, const void *sendMsg,
 968                                CADataType_t dataType)
 969 {
 970     VERIFY_NON_NULL(endpoint, TAG, "endpoint");
 971     VERIFY_NON_NULL(sendMsg, TAG, "sendMsg");
 972
 973     if (false == CAIsSelectedNetworkAvailable())
 974     {
 975         return CA_STATUS_FAILED;
 976     }
 977
 978 #ifdef ARDUINO
 979     // If max retransmission queue is reached, then don't handle new request
 980     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 981     {
 982         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 983         return CA_SEND_FAILED;
 984     }
 985 #endif // ARDUINO
 986
 987     CAData_t *data = CAPrepareSendData(endpoint, sendMsg, dataType);
 988     if(!data)
 989     {
 990         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 991         return CA_MEMORY_ALLOC_FAILED;
 992     }
 993
 994     OIC_LOG_V(DEBUG, TAG, "device ID of endpoint of this message is %s", endpoint->deviceId);
 995
 996 #ifdef SINGLE_THREAD
 997     CAResult_t result = CAProcessSendData(data);
 998     if (CA_STATUS_OK != result)
 999     {
1000         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
1001         OICFree(data);
1002         return result;
1003     }
1004
1005     OICFree(data);
1006
1007 #else
1008     if (SEND_TYPE_UNICAST == data->type && CAIsLocalEndpoint(data->remoteEndpoint))
1009     {
1010         OIC_LOG(DEBUG, TAG,
1011                 "This is a loopback message. Transfer it to the receive queue directly");
1012         CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
1013         return CA_STATUS_OK;
1014     }
1015 #ifdef WITH_BWT
1016     if (CAIsSupportedBlockwiseTransfer(endpoint->adapter))
1017     {
1018         // send block data
1019         CAResult_t res = CASendBlockWiseData(data);
1020         if (CA_NOT_SUPPORTED == res)
1021         {
1022             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
1023             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1024             return CA_STATUS_OK;
1025         }
1026         else
1027         {
1028             CADestroyData(data, sizeof(CAData_t));
1029         }
1030         return res;
1031     }
1032     else
1033 #endif // WITH_BWT
1034     {
1035         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1036     }
1037 #endif // SINGLE_THREAD
1038
1039     return CA_STATUS_OK;
1040 }
1041
1042 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
1043                              CAErrorCallback errorHandler)
1044 {
1045     g_requestHandler = ReqHandler;
1046     g_responseHandler = RespHandler;
1047     g_errorHandler = errorHandler;
1048 }
1049
1050 void CASetNetworkMonitorCallback(CANetworkMonitorCallback nwMonitorHandler)
1051 {
1052     g_nwMonitorHandler = nwMonitorHandler;
1053 }
1054
1055 CAResult_t CAInitializeMessageHandler()
1056 {
1057     CASetPacketReceivedCallback(CAReceivedPacketCallback);
1058     CASetErrorHandleCallback(CAErrorHandler);
1059
1060 #ifndef SINGLE_THREAD
1061     // create thread pool
1062     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
1063     if (CA_STATUS_OK != res)
1064     {
1065         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
1066         return res;
1067     }
1068
1069     // send thread initialize
1070     res = CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
1071                                      CASendThreadProcess, CADestroyData);
1072     if (CA_STATUS_OK != res)
1073     {
1074         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
1075         return res;
1076     }
1077
1078     // start send thread
1079     res = CAQueueingThreadStart(&g_sendThread);
1080     if (CA_STATUS_OK != res)
1081     {
1082         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
1083         return res;
1084     }
1085
1086     // receive thread initialize
1087     res = CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
1088                                      CAReceiveThreadProcess, CADestroyData);
1089     if (CA_STATUS_OK != res)
1090     {
1091         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
1092         return res;
1093     }
1094
1095 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1096     // start receive thread
1097     res = CAQueueingThreadStart(&g_receiveThread);
1098     if (CA_STATUS_OK != res)
1099     {
1100         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
1101         return res;
1102     }
1103 #endif // SINGLE_HANDLE
1104
1105     // retransmission initialize
1106     res = CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle,
1107                                      CASendUnicastData, CATimeoutCallback, NULL);
1108     if (CA_STATUS_OK != res)
1109     {
1110         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1111         return res;
1112     }
1113
1114 #ifdef WITH_BWT
1115     // block-wise transfer initialize
1116     res = CAInitializeBlockWiseTransfer(CAAddDataToSendThread, CAAddDataToReceiveThread);
1117     if (CA_STATUS_OK != res)
1118     {
1119         OIC_LOG(ERROR, TAG, "Failed to Initialize BlockWiseTransfer.");
1120         return res;
1121     }
1122 #endif
1123
1124     // start retransmission
1125     res = CARetransmissionStart(&g_retransmissionContext);
1126     if (CA_STATUS_OK != res)
1127     {
1128         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
1129         return res;
1130     }
1131
1132     // initialize interface adapters by controller
1133     CAInitializeAdapters(g_threadPoolHandle);
1134 #else
1135     // retransmission initialize
1136     CAResult_t res = CARetransmissionInitialize(&g_retransmissionContext, NULL, CASendUnicastData,
1137                                                 CATimeoutCallback, NULL);
1138     if (CA_STATUS_OK != res)
1139     {
1140         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1141         return res;
1142     }
1143
1144     CAInitializeAdapters();
1145 #endif // SINGLE_THREAD
1146
1147     return CA_STATUS_OK;
1148 }
1149
1150 void CATerminateMessageHandler()
1151 {
1152 #ifndef SINGLE_THREAD
1153     CATransportAdapter_t connType;
1154     u_arraylist_t *list = CAGetSelectedNetworkList();
1155     uint32_t length = u_arraylist_length(list);
1156
1157     uint32_t i = 0;
1158     for (i = 0; i < length; i++)
1159     {
1160         void* ptrType = u_arraylist_get(list, i);
1161
1162         if (NULL == ptrType)
1163         {
1164             continue;
1165         }
1166
1167         connType = *(CATransportAdapter_t *)ptrType;
1168         CAStopAdapter(connType);
1169     }
1170
1171     // stop retransmission
1172     if (NULL != g_retransmissionContext.threadMutex)
1173     {
1174         CARetransmissionStop(&g_retransmissionContext);
1175     }
1176
1177     // stop thread
1178     // delete thread data
1179     if (NULL != g_sendThread.threadMutex)
1180     {
1181         CAQueueingThreadStop(&g_sendThread);
1182     }
1183
1184     // stop thread
1185     // delete thread data
1186     if (NULL != g_receiveThread.threadMutex)
1187     {
1188 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1189         CAQueueingThreadStop(&g_receiveThread);
1190 #endif
1191     }
1192
1193     // destroy thread pool
1194     if (NULL != g_threadPoolHandle)
1195     {
1196         ca_thread_pool_free(g_threadPoolHandle);
1197         g_threadPoolHandle = NULL;
1198     }
1199
1200 #ifdef WITH_BWT
1201     CATerminateBlockWiseTransfer();
1202 #endif
1203     CARetransmissionDestroy(&g_retransmissionContext);
1204     CAQueueingThreadDestroy(&g_sendThread);
1205     CAQueueingThreadDestroy(&g_receiveThread);
1206
1207     // terminate interface adapters by controller
1208     CATerminateAdapters();
1209 #else
1210     // terminate interface adapters by controller
1211     CATerminateAdapters();
1212
1213     // stop retransmission
1214     CARetransmissionStop(&g_retransmissionContext);
1215     CARetransmissionDestroy(&g_retransmissionContext);
1216 #endif // SINGLE_THREAD
1217 }
1218
1219 static void CALogPayloadInfo(CAInfo_t *info)
1220 {
1221     if (info)
1222     {
1223         if (info->options)
1224         {
1225             for (uint32_t i = 0; i < info->numOptions; i++)
1226             {
1227                 OIC_LOG_V(DEBUG, TAG, "optionID: %u", info->options[i].optionID);
1228
1229                 OIC_LOG_V(DEBUG, TAG, "list: %s", info->options[i].optionData);
1230             }
1231         }
1232
1233         if (info->payload)
1234         {
1235             OIC_LOG_V(DEBUG, TAG, "payload: %p(%zu)", info->payload,
1236                       info->payloadSize);
1237         }
1238
1239         if (info->token)
1240         {
1241             OIC_LOG(DEBUG, TAG, "token:");
1242             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) info->token,
1243                            info->tokenLength);
1244         }
1245         OIC_LOG_V(DEBUG, TAG, "msgID: %u", info->messageId);
1246     }
1247     else
1248     {
1249         OIC_LOG(DEBUG, TAG, "info is NULL, cannot output log data");
1250     }
1251 }
1252
1253 void CAErrorHandler(const CAEndpoint_t *endpoint,
1254                     const void *data, size_t dataLen,
1255                     CAResult_t result)
1256 {
1257     OIC_LOG(DEBUG, TAG, "CAErrorHandler IN");
1258     VERIFY_NON_NULL_VOID(endpoint, TAG, "remoteEndpoint");
1259     VERIFY_NON_NULL_VOID(data, TAG, "data");
1260
1261     if (0 == dataLen)
1262     {
1263         OIC_LOG(ERROR, TAG, "dataLen is zero");
1264         return;
1265     }
1266
1267 #ifndef SINGLE_THREAD
1268     uint32_t code = CA_NOT_FOUND;
1269     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1270     //Get PDU data
1271     coap_pdu_t *pdu = (coap_pdu_t *)CAParsePDU((const char *)data, dataLen, &code, endpoint);
1272     if (NULL == pdu)
1273     {
1274         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1275         return;
1276     }
1277
1278     CAData_t *cadata = CAGenerateHandlerData(endpoint, NULL, pdu, CA_ERROR_DATA);
1279     if (!cadata)
1280     {
1281         OIC_LOG(ERROR, TAG, "CAErrorHandler, CAGenerateHandlerData failed!");
1282         coap_delete_pdu(pdu);
1283         return;
1284     }
1285
1286     cadata->errorInfo->result = result;
1287
1288     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1289     coap_delete_pdu(pdu);
1290 #else
1291     (void)result;
1292 #endif
1293
1294     OIC_LOG(DEBUG, TAG, "CAErrorHandler OUT");
1295     return;
1296 }
1297
1298 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info, CAResult_t result)
1299 {
1300     OIC_LOG(DEBUG, TAG, "CASendErrorInfo IN");
1301 #ifndef SINGLE_THREAD
1302     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1303     if (!cadata)
1304     {
1305         OIC_LOG(ERROR, TAG, "cadata memory allocation failed");
1306         return;
1307     }
1308
1309     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
1310     if (!ep)
1311     {
1312         OIC_LOG(ERROR, TAG, "endpoint clone failed");
1313         OICFree(cadata);
1314         return;
1315     }
1316
1317     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
1318     if (!errorInfo)
1319     {
1320         OIC_LOG(ERROR, TAG, "errorInfo memory allocation failed");
1321         OICFree(cadata);
1322         CAFreeEndpoint(ep);
1323         return;
1324     }
1325
1326     CAResult_t res = CACloneInfo(info, &errorInfo->info);
1327     if (CA_STATUS_OK != res)
1328     {
1329         OIC_LOG(ERROR, TAG, "info clone failed");
1330         OICFree(cadata);
1331         OICFree(errorInfo);
1332         CAFreeEndpoint(ep);
1333         return;
1334     }
1335
1336     errorInfo->result = result;
1337     cadata->remoteEndpoint = ep;
1338     cadata->errorInfo = errorInfo;
1339     cadata->dataType = CA_ERROR_DATA;
1340
1341     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1342 #endif
1343     OIC_LOG(DEBUG, TAG, "CASendErrorInfo OUT");
1344 }
1345
1346 #ifndef ARDUINO
1347 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1348 {
1349     OIC_LOG(DEBUG, TAG, "CALogPDUInfo");
1350
1351     VERIFY_NON_NULL_VOID(data, TAG, "data");
1352     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1353
1354     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1355     if(SEND_TYPE_MULTICAST == data->type)
1356     {
1357         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = true");
1358     }
1359     else
1360     {
1361         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = false");
1362     }
1363
1364     if (NULL != data->remoteEndpoint)
1365     {
1366         CALogAdapterTypeInfo(data->remoteEndpoint->adapter);
1367         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1368         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Address = [%s]:[%d]", data->remoteEndpoint->addr,
1369                   data->remoteEndpoint->port);
1370         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1371     }
1372
1373     switch(data->dataType)
1374     {
1375         case CA_REQUEST_DATA:
1376             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_REQUEST_DATA]");
1377             break;
1378         case CA_RESPONSE_DATA:
1379             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_DATA]");
1380             break;
1381         case CA_ERROR_DATA:
1382             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_ERROR_DATA]");
1383             break;
1384         case CA_RESPONSE_FOR_RES:
1385             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_FOR_RES]");
1386             break;
1387         default:
1388             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Data Type = [%d]", data->dataType);
1389             break;
1390     }
1391     OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1392
1393     const CAInfo_t *info = NULL;
1394     if (NULL != data->requestInfo)
1395     {
1396         switch(data->requestInfo->method)
1397         {
1398             case CA_GET:
1399                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [GET]");
1400                 break;
1401             case CA_POST:
1402                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [POST]");
1403                 break;
1404             case CA_PUT:
1405                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [PUT]");
1406                 break;
1407             case CA_DELETE:
1408                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [DELETE]");
1409                 break;
1410             default:
1411                 OIC_LOG_V(DEBUG, ANALYZER_TAG, "Method = [%d]", data->requestInfo->method);
1412                 break;
1413         }
1414         info = &data->requestInfo->info;
1415     }
1416
1417     if (NULL != data->responseInfo)
1418     {
1419         OIC_LOG_V(DEBUG, ANALYZER_TAG, "result code = [%d]", data->responseInfo->result);
1420         info = &data->responseInfo->info;
1421     }
1422
1423     if (pdu->transport_hdr)
1424     {
1425         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Msg ID = [%d]", pdu->transport_hdr->udp.id);
1426     }
1427
1428     if (info)
1429     {
1430         OIC_LOG(DEBUG, ANALYZER_TAG, "Coap Token");
1431         OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, (const uint8_t *) info->token, info->tokenLength);
1432         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Res URI = [%s]", info->resourceUri);
1433         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1434
1435         if (CA_FORMAT_APPLICATION_CBOR == info->payloadFormat)
1436         {
1437             OIC_LOG(DEBUG, ANALYZER_TAG, "Payload Format = [CA_FORMAT_APPLICATION_CBOR]");
1438         }
1439         else
1440         {
1441             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Payload Format = [%d]", info->payloadFormat);
1442         }
1443     }
1444
1445     size_t payloadLen = (pdu->data) ? (unsigned char *) pdu->hdr + pdu->length - pdu->data : 0;
1446     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Message Full Size = [%lu]", pdu->length);
1447     OIC_LOG(DEBUG, ANALYZER_TAG, "CoAP Header (+ 0xFF)");
1448     OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG,  (const uint8_t *) pdu->transport_hdr,
1449                    pdu->length - payloadLen);
1450     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Header size = [%lu]", pdu->length - payloadLen);
1451
1452     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload");
1453     OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, pdu->data, payloadLen);
1454     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload Size = [%lu]", payloadLen);
1455     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1456 }
1457 #else
1458 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1459 {
1460     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1461     (void)data;
1462
1463     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
1464     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->transport_hdr->udp.type);
1465     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->transport_hdr->udp.code);
1466     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
1467     OIC_LOG_BUFFER(DEBUG, TAG, pdu->transport_hdr->udp.token,
1468                    pdu->transport_hdr->udp.token_length);
1469 }
1470 #endif