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     uint32_t code = CA_NOT_FOUND;
 741     CAData_t *cadata = NULL;
 742
 743     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code,
 744                                                 &(sep->endpoint));
 745     if (NULL == pdu)
 746     {
 747         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 748         goto exit;
 749     }
 750
 751     OIC_LOG_V(DEBUG, TAG, "code = %d", code);
 752     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 753     {
 754         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_REQUEST_DATA);
 755         if (!cadata)
 756         {
 757             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 758             coap_delete_pdu(pdu);
 759             goto exit;
 760         }
 761     }
 762     else
 763     {
 764         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_RESPONSE_DATA);
 765         if (!cadata)
 766         {
 767             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 768             coap_delete_pdu(pdu);
 769             goto exit;
 770         }
 771
 772 #ifdef WITH_TCP
 773         if (CAIsSupportedCoAPOverTCP(sep->endpoint.adapter))
 774         {
 775             OIC_LOG(INFO, TAG, "retransmission is not supported");
 776         }
 777         else
 778 #endif
 779         {
 780             // for retransmission
 781             void *retransmissionPdu = NULL;
 782             CARetransmissionReceivedData(&g_retransmissionContext, cadata->remoteEndpoint, pdu->transport_hdr,
 783                                          pdu->length, &retransmissionPdu);
 784
 785             // get token from saved data in retransmission list
 786             if (retransmissionPdu && CA_EMPTY == code)
 787             {
 788                 if (cadata->responseInfo)
 789                 {
 790                     CAInfo_t *info = &cadata->responseInfo->info;
 791                     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_transport_t *)retransmissionPdu,
 792                                                        info, &(sep->endpoint));
 793                     if (CA_STATUS_OK != res)
 794                     {
 795                         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 796                         OICFree(info->token);
 797                         info->tokenLength = 0;
 798                     }
 799                 }
 800             }
 801             OICFree(retransmissionPdu);
 802         }
 803     }
 804
 805     cadata->type = SEND_TYPE_UNICAST;
 806
 807     CALogPDUInfo(cadata, pdu);
 808
 809 #ifdef SINGLE_THREAD
 810     CAProcessReceivedData(cadata);
 811 #else
 812 #ifdef WITH_BWT
 813     if (CAIsSupportedBlockwiseTransfer(sep->endpoint.adapter))
 814     {
 815         CAResult_t res = CAReceiveBlockWiseData(pdu, &(sep->endpoint), cadata, dataLen);
 816         if (CA_NOT_SUPPORTED == res || CA_REQUEST_TIMEOUT == res)
 817         {
 818             OIC_LOG(DEBUG, TAG, "this message does not have block option");
 819             CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 820         }
 821         else
 822         {
 823             CADestroyData(cadata, sizeof(CAData_t));
 824         }
 825     }
 826     else
 827 #endif
 828     {
 829         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 830     }
 831 #endif // SINGLE_THREAD
 832
 833     coap_delete_pdu(pdu);
 834
 835 exit:
 836     OIC_LOG(DEBUG, TAG, "received pdu data :");
 837     OIC_LOG_BUFFER(DEBUG, TAG,  data, dataLen);
 838 }
 839
 840 void CAHandleRequestResponseCallbacks()
 841 {
 842 #ifdef SINGLE_THREAD
 843     CAReadData();
 844     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 845 #else
 846 #ifdef SINGLE_HANDLE
 847     // parse the data and call the callbacks.
 848     // #1 parse the data
 849     // #2 get endpoint
 850
 851     oc_mutex_lock(g_receiveThread.threadMutex);
 852
 853     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 854
 855     oc_mutex_unlock(g_receiveThread.threadMutex);
 856
 857     if (NULL == item || NULL == item->msg)
 858     {
 859         return;
 860     }
 861
 862     // get endpoint
 863     CAData_t *td = (CAData_t *) item->msg;
 864
 865     if (td->requestInfo && g_requestHandler)
 866     {
 867         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 868         g_requestHandler(td->remoteEndpoint, td->requestInfo);
 869     }
 870     else if (td->responseInfo && g_responseHandler)
 871     {
 872         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 873         g_responseHandler(td->remoteEndpoint, td->responseInfo);
 874     }
 875     else if (td->errorInfo && g_errorHandler)
 876     {
 877         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 878         g_errorHandler(td->remoteEndpoint, td->errorInfo);
 879     }
 880
 881     CADestroyData(item->msg, sizeof(CAData_t));
 882     OICFree(item);
 883
 884 #endif // SINGLE_HANDLE
 885 #endif // SINGLE_THREAD
 886 }
 887
 888 static CAData_t* CAPrepareSendData(const CAEndpoint_t *endpoint, const void *sendData,
 889                                    CADataType_t dataType)
 890 {
 891     OIC_LOG(DEBUG, TAG, "CAPrepareSendData IN");
 892
 893     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 894     if (!cadata)
 895     {
 896         OIC_LOG(ERROR, TAG, "memory allocation failed");
 897         return NULL;
 898     }
 899
 900     if (CA_REQUEST_DATA == dataType)
 901     {
 902 #ifdef SINGLE_THREAD
 903         CARequestInfo_t *request = (CARequestInfo_t *)sendData;
 904 #else
 905         // clone request info
 906         CARequestInfo_t *request = CACloneRequestInfo((CARequestInfo_t *)sendData);
 907         if (!request)
 908         {
 909             OIC_LOG(ERROR, TAG, "CACloneRequestInfo failed");
 910             goto exit;
 911         }
 912 #endif
 913         cadata->type = request->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 914         cadata->requestInfo =  request;
 915     }
 916     else if (CA_RESPONSE_DATA == dataType || CA_RESPONSE_FOR_RES == dataType)
 917     {
 918 #ifdef SINGLE_THREAD
 919         CAResponseInfo_t *response = (CAResponseInfo_t *)sendData;
 920 #else
 921         // clone response info
 922         CAResponseInfo_t *response = CACloneResponseInfo((CAResponseInfo_t *)sendData);
 923         if(!response)
 924         {
 925             OIC_LOG(ERROR, TAG, "CACloneResponseInfo failed");
 926             goto exit;
 927         }
 928 #endif
 929         cadata->type = response->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 930         cadata->responseInfo = response;
 931     }
 932     else
 933     {
 934         OIC_LOG(ERROR, TAG, "CAPrepareSendData unknown data type");
 935         goto exit;
 936     }
 937
 938 #ifdef SINGLE_THREAD
 939     CAEndpoint_t* ep = endpoint;
 940 #else
 941     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 942     if (!ep)
 943     {
 944         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 945         goto exit;
 946     }
 947 #endif
 948     cadata->remoteEndpoint = ep;
 949     cadata->dataType = dataType;
 950     return cadata;
 951
 952 exit:
 953 #ifndef SINGLE_THREAD
 954     CADestroyData(cadata, sizeof(CAData_t));
 955 #else
 956     OICFree(cadata);
 957 #endif
 958     return NULL;
 959 }
 960
 961 CAResult_t CADetachSendMessage(const CAEndpoint_t *endpoint, const void *sendMsg,
 962                                CADataType_t dataType)
 963 {
 964     VERIFY_NON_NULL(endpoint, TAG, "endpoint");
 965     VERIFY_NON_NULL(sendMsg, TAG, "sendMsg");
 966
 967     if (false == CAIsSelectedNetworkAvailable())
 968     {
 969         return CA_STATUS_FAILED;
 970     }
 971
 972 #ifdef ARDUINO
 973     // If max retransmission queue is reached, then don't handle new request
 974     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 975     {
 976         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 977         return CA_SEND_FAILED;
 978     }
 979 #endif // ARDUINO
 980
 981     CAData_t *data = CAPrepareSendData(endpoint, sendMsg, dataType);
 982     if(!data)
 983     {
 984         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
 985         return CA_MEMORY_ALLOC_FAILED;
 986     }
 987
 988     OIC_LOG_V(DEBUG, TAG, "device ID of endpoint of this message is %s", endpoint->deviceId);
 989
 990 #ifdef SINGLE_THREAD
 991     CAResult_t result = CAProcessSendData(data);
 992     if (CA_STATUS_OK != result)
 993     {
 994         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
 995         OICFree(data);
 996         return result;
 997     }
 998
 999     OICFree(data);
1000
1001 #else
1002     if (SEND_TYPE_UNICAST == data->type && CAIsLocalEndpoint(data->remoteEndpoint))
1003     {
1004         OIC_LOG(DEBUG, TAG,
1005                 "This is a loopback message. Transfer it to the receive queue directly");
1006         CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
1007         return CA_STATUS_OK;
1008     }
1009 #ifdef WITH_BWT
1010     if (CAIsSupportedBlockwiseTransfer(endpoint->adapter))
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 // WITH_BWT
1028     {
1029         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1030     }
1031 #endif // SINGLE_THREAD
1032
1033     return CA_STATUS_OK;
1034 }
1035
1036 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
1037                              CAErrorCallback errorHandler)
1038 {
1039     g_requestHandler = ReqHandler;
1040     g_responseHandler = RespHandler;
1041     g_errorHandler = errorHandler;
1042 }
1043
1044 void CASetNetworkMonitorCallback(CANetworkMonitorCallback nwMonitorHandler)
1045 {
1046     g_nwMonitorHandler = nwMonitorHandler;
1047 }
1048
1049 CAResult_t CAInitializeMessageHandler()
1050 {
1051     CASetPacketReceivedCallback(CAReceivedPacketCallback);
1052     CASetErrorHandleCallback(CAErrorHandler);
1053
1054 #ifndef SINGLE_THREAD
1055     // create thread pool
1056     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
1057     if (CA_STATUS_OK != res)
1058     {
1059         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
1060         return res;
1061     }
1062
1063     // send thread initialize
1064     res = CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
1065                                      CASendThreadProcess, CADestroyData);
1066     if (CA_STATUS_OK != res)
1067     {
1068         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
1069         return res;
1070     }
1071
1072     // start send thread
1073     res = CAQueueingThreadStart(&g_sendThread);
1074     if (CA_STATUS_OK != res)
1075     {
1076         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
1077         return res;
1078     }
1079
1080     // receive thread initialize
1081     res = CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
1082                                      CAReceiveThreadProcess, CADestroyData);
1083     if (CA_STATUS_OK != res)
1084     {
1085         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
1086         return res;
1087     }
1088
1089 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1090     // start receive thread
1091     res = CAQueueingThreadStart(&g_receiveThread);
1092     if (CA_STATUS_OK != res)
1093     {
1094         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
1095         return res;
1096     }
1097 #endif // SINGLE_HANDLE
1098
1099     // retransmission initialize
1100     res = CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle,
1101                                      CASendUnicastData, CATimeoutCallback, NULL);
1102     if (CA_STATUS_OK != res)
1103     {
1104         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1105         return res;
1106     }
1107
1108 #ifdef WITH_BWT
1109     // block-wise transfer initialize
1110     res = CAInitializeBlockWiseTransfer(CAAddDataToSendThread, CAAddDataToReceiveThread);
1111     if (CA_STATUS_OK != res)
1112     {
1113         OIC_LOG(ERROR, TAG, "Failed to Initialize BlockWiseTransfer.");
1114         return res;
1115     }
1116 #endif
1117
1118     // start retransmission
1119     res = CARetransmissionStart(&g_retransmissionContext);
1120     if (CA_STATUS_OK != res)
1121     {
1122         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
1123         return res;
1124     }
1125
1126     // initialize interface adapters by controller
1127     CAInitializeAdapters(g_threadPoolHandle);
1128 #else
1129     // retransmission initialize
1130     CAResult_t res = CARetransmissionInitialize(&g_retransmissionContext, NULL, CASendUnicastData,
1131                                                 CATimeoutCallback, NULL);
1132     if (CA_STATUS_OK != res)
1133     {
1134         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1135         return res;
1136     }
1137
1138     CAInitializeAdapters();
1139 #endif // SINGLE_THREAD
1140
1141     return CA_STATUS_OK;
1142 }
1143
1144 void CATerminateMessageHandler()
1145 {
1146 #ifndef SINGLE_THREAD
1147     CATransportAdapter_t connType;
1148     u_arraylist_t *list = CAGetSelectedNetworkList();
1149     uint32_t length = u_arraylist_length(list);
1150
1151     uint32_t i = 0;
1152     for (i = 0; i < length; i++)
1153     {
1154         void* ptrType = u_arraylist_get(list, i);
1155
1156         if (NULL == ptrType)
1157         {
1158             continue;
1159         }
1160
1161         connType = *(CATransportAdapter_t *)ptrType;
1162         CAStopAdapter(connType);
1163     }
1164
1165     // stop retransmission
1166     if (NULL != g_retransmissionContext.threadMutex)
1167     {
1168         CARetransmissionStop(&g_retransmissionContext);
1169     }
1170
1171     // stop thread
1172     // delete thread data
1173     if (NULL != g_sendThread.threadMutex)
1174     {
1175         CAQueueingThreadStop(&g_sendThread);
1176     }
1177
1178     // stop thread
1179     // delete thread data
1180     if (NULL != g_receiveThread.threadMutex)
1181     {
1182 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1183         CAQueueingThreadStop(&g_receiveThread);
1184 #endif
1185     }
1186
1187     // destroy thread pool
1188     if (NULL != g_threadPoolHandle)
1189     {
1190         ca_thread_pool_free(g_threadPoolHandle);
1191         g_threadPoolHandle = NULL;
1192     }
1193
1194 #ifdef WITH_BWT
1195     CATerminateBlockWiseTransfer();
1196 #endif
1197     CARetransmissionDestroy(&g_retransmissionContext);
1198     CAQueueingThreadDestroy(&g_sendThread);
1199     CAQueueingThreadDestroy(&g_receiveThread);
1200
1201     // terminate interface adapters by controller
1202     CATerminateAdapters();
1203 #else
1204     // terminate interface adapters by controller
1205     CATerminateAdapters();
1206
1207     // stop retransmission
1208     CARetransmissionStop(&g_retransmissionContext);
1209     CARetransmissionDestroy(&g_retransmissionContext);
1210 #endif // SINGLE_THREAD
1211 }
1212
1213 static void CALogPayloadInfo(CAInfo_t *info)
1214 {
1215     if (info)
1216     {
1217         if (info->options)
1218         {
1219             for (uint32_t i = 0; i < info->numOptions; i++)
1220             {
1221                 OIC_LOG_V(DEBUG, TAG, "optionID: %u", info->options[i].optionID);
1222
1223                 OIC_LOG_V(DEBUG, TAG, "list: %s", info->options[i].optionData);
1224             }
1225         }
1226
1227         if (info->payload)
1228         {
1229             OIC_LOG_V(DEBUG, TAG, "payload: %p(%zu)", info->payload,
1230                       info->payloadSize);
1231         }
1232
1233         if (info->token)
1234         {
1235             OIC_LOG(DEBUG, TAG, "token:");
1236             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) info->token,
1237                            info->tokenLength);
1238         }
1239         OIC_LOG_V(DEBUG, TAG, "msgID: %u", info->messageId);
1240     }
1241     else
1242     {
1243         OIC_LOG(DEBUG, TAG, "info is NULL, cannot output log data");
1244     }
1245 }
1246
1247 void CAErrorHandler(const CAEndpoint_t *endpoint,
1248                     const void *data, size_t dataLen,
1249                     CAResult_t result)
1250 {
1251     OIC_LOG(DEBUG, TAG, "CAErrorHandler IN");
1252
1253 #ifndef SINGLE_THREAD
1254     VERIFY_NON_NULL_VOID(endpoint, TAG, "remoteEndpoint");
1255     VERIFY_NON_NULL_VOID(data, TAG, "data");
1256
1257     uint32_t code = CA_NOT_FOUND;
1258     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1259     //Get PDU data
1260     coap_pdu_t *pdu = (coap_pdu_t *)CAParsePDU((const char *)data, dataLen, &code, endpoint);
1261     if (NULL == pdu)
1262     {
1263         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1264         return;
1265     }
1266
1267     CAData_t *cadata = CAGenerateHandlerData(endpoint, NULL, pdu, CA_ERROR_DATA);
1268     if (!cadata)
1269     {
1270         OIC_LOG(ERROR, TAG, "CAErrorHandler, CAGenerateHandlerData failed!");
1271         coap_delete_pdu(pdu);
1272         return;
1273     }
1274
1275     cadata->errorInfo->result = result;
1276
1277     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1278     coap_delete_pdu(pdu);
1279 #endif
1280
1281     OIC_LOG(DEBUG, TAG, "CAErrorHandler OUT");
1282     return;
1283 }
1284
1285 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info, CAResult_t result)
1286 {
1287     OIC_LOG(DEBUG, TAG, "CASendErrorInfo IN");
1288 #ifndef SINGLE_THREAD
1289     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1290     if (!cadata)
1291     {
1292         OIC_LOG(ERROR, TAG, "cadata memory allocation failed");
1293         return;
1294     }
1295
1296     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
1297     if (!ep)
1298     {
1299         OIC_LOG(ERROR, TAG, "endpoint clone failed");
1300         OICFree(cadata);
1301         return;
1302     }
1303
1304     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
1305     if (!errorInfo)
1306     {
1307         OIC_LOG(ERROR, TAG, "errorInfo memory allocation failed");
1308         OICFree(cadata);
1309         CAFreeEndpoint(ep);
1310         return;
1311     }
1312
1313     CAResult_t res = CACloneInfo(info, &errorInfo->info);
1314     if (CA_STATUS_OK != res)
1315     {
1316         OIC_LOG(ERROR, TAG, "info clone failed");
1317         OICFree(cadata);
1318         OICFree(errorInfo);
1319         CAFreeEndpoint(ep);
1320         return;
1321     }
1322
1323     errorInfo->result = result;
1324     cadata->remoteEndpoint = ep;
1325     cadata->errorInfo = errorInfo;
1326     cadata->dataType = CA_ERROR_DATA;
1327
1328     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1329 #endif
1330     OIC_LOG(DEBUG, TAG, "CASendErrorInfo OUT");
1331 }
1332
1333 #ifndef ARDUINO
1334 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1335 {
1336     OIC_LOG(DEBUG, TAG, "CALogPDUInfo");
1337
1338     VERIFY_NON_NULL_VOID(data, TAG, "data");
1339     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1340
1341     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1342     if(SEND_TYPE_MULTICAST == data->type)
1343     {
1344         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = true");
1345     }
1346     else
1347     {
1348         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = false");
1349     }
1350
1351     if (NULL != data->remoteEndpoint)
1352     {
1353         CALogAdapterTypeInfo(data->remoteEndpoint->adapter);
1354         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1355         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Address = [%s]:[%d]", data->remoteEndpoint->addr,
1356                   data->remoteEndpoint->port);
1357         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1358     }
1359
1360     switch(data->dataType)
1361     {
1362         case CA_REQUEST_DATA:
1363             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_REQUEST_DATA]");
1364             break;
1365         case CA_RESPONSE_DATA:
1366             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_DATA]");
1367             break;
1368         case CA_ERROR_DATA:
1369             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_ERROR_DATA]");
1370             break;
1371         case CA_RESPONSE_FOR_RES:
1372             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_FOR_RES]");
1373             break;
1374         default:
1375             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Data Type = [%d]", data->dataType);
1376             break;
1377     }
1378     OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1379
1380     const CAInfo_t *info = NULL;
1381     if (NULL != data->requestInfo)
1382     {
1383         switch(data->requestInfo->method)
1384         {
1385             case CA_GET:
1386                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [GET]");
1387                 break;
1388             case CA_POST:
1389                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [POST]");
1390                 break;
1391             case CA_PUT:
1392                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [PUT]");
1393                 break;
1394             case CA_DELETE:
1395                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [DELETE]");
1396                 break;
1397             default:
1398                 OIC_LOG_V(DEBUG, ANALYZER_TAG, "Method = [%d]", data->requestInfo->method);
1399                 break;
1400         }
1401         info = &data->requestInfo->info;
1402     }
1403
1404     if (NULL != data->responseInfo)
1405     {
1406         OIC_LOG_V(DEBUG, ANALYZER_TAG, "result code = [%d]", data->responseInfo->result);
1407         info = &data->responseInfo->info;
1408     }
1409
1410     if (pdu->transport_hdr)
1411     {
1412         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Msg ID = [%d]", pdu->transport_hdr->udp.id);
1413     }
1414
1415     if (info)
1416     {
1417         OIC_LOG(DEBUG, ANALYZER_TAG, "Coap Token");
1418         OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, (const uint8_t *) info->token, info->tokenLength);
1419         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Res URI = [%s]", info->resourceUri);
1420         OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1421
1422         if (CA_FORMAT_APPLICATION_CBOR == info->payloadFormat)
1423         {
1424             OIC_LOG(DEBUG, ANALYZER_TAG, "Payload Format = [CA_FORMAT_APPLICATION_CBOR]");
1425         }
1426         else
1427         {
1428             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Payload Format = [%d]", info->payloadFormat);
1429         }
1430     }
1431
1432     size_t payloadLen = (pdu->data) ? (unsigned char *) pdu->hdr + pdu->length - pdu->data : 0;
1433     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Message Full Size = [%lu]", pdu->length);
1434     OIC_LOG(DEBUG, ANALYZER_TAG, "CoAP Header (+ 0xFF)");
1435     OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG,  (const uint8_t *) pdu->transport_hdr,
1436                    pdu->length - payloadLen);
1437     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Header size = [%lu]", pdu->length - payloadLen);
1438
1439     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload");
1440     OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, pdu->data, payloadLen);
1441     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload Size = [%lu]", payloadLen);
1442     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1443 }
1444 #else
1445 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1446 {
1447     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1448     (void)data;
1449
1450     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
1451     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->transport_hdr->udp.type);
1452     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->transport_hdr->udp.code);
1453     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
1454     OIC_LOG_BUFFER(DEBUG, TAG, pdu->transport_hdr->udp.token,
1455                    pdu->transport_hdr->udp.token_length);
1456 }
1457 #endif