resource/csdk/connectivity/src/camessagehandler.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2014 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <stdint.h>
  25
  26 #include "cainterface.h"
  27 #include "camessagehandler.h"
  28 #include "caremotehandler.h"
  29 #include "caprotocolmessage.h"
  30 #include "logger.h"
  31 #include "trace.h"
  32 #ifndef WITH_UPSTREAM_LIBCOAP
  33 #include "coap/config.h"
  34 #endif
  35 #include "oic_malloc.h"
  36 #include "canetworkconfigurator.h"
  37 #include "caadapterutils.h"
  38 #include "cainterfacecontroller.h"
  39 #include "caretransmission.h"
  40 #include "oic_string.h"
  41
  42 #ifdef WITH_BWT
  43 #include "cablockwisetransfer.h"
  44 #endif
  45
  46 #ifndef  SINGLE_THREAD
  47 #include "uqueue.h"
  48 #include "cathreadpool.h" /* for thread pool */
  49 #include "caqueueingthread.h"
  50
  51 #if defined(TCP_ADAPTER) && defined(WITH_CLOUD)
  52 #include "caconnectionmanager.h"
  53 #endif
  54 #define SINGLE_HANDLE
  55 #define MAX_THREAD_POOL_SIZE    20
  56
  57 // thread pool handle
  58 static ca_thread_pool_t g_threadPoolHandle = NULL;
  59
  60 // message handler main thread
  61 static CAQueueingThread_t g_sendThread;
  62 static CAQueueingThread_t g_receiveThread;
  63
  64 #else
  65 #define CA_MAX_RT_ARRAY_SIZE    3
  66 #endif  // SINGLE_THREAD
  67
  68 #define TAG "OIC_CA_MSG_HANDLE"
  69
  70 static CARetransmission_t g_retransmissionContext;
  71
  72 // handler field
  73 static CARequestCallback g_requestHandler = NULL;
  74 static CAResponseCallback g_responseHandler = NULL;
  75 static CAErrorCallback g_errorHandler = NULL;
  76 static CANetworkMonitorCallback g_nwMonitorHandler = NULL;
  77
  78 static void CAErrorHandler(const CAEndpoint_t *endpoint,
  79                            const void *data, size_t dataLen,
  80                            CAResult_t result);
  81
  82 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
  83                                        const CARemoteId_t *identity,
  84                                        const void *data, CADataType_t dataType);
  85
  86 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info,
  87                             CAResult_t result);
  88
  89 #ifdef SINGLE_THREAD
  90 static void CAProcessReceivedData(CAData_t *data);
  91 #endif
  92 static void CADestroyData(void *data, uint32_t size);
  93 static void CALogPayloadInfo(CAInfo_t *info);
  94 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *endpoint, uint16_t id,
  95                                 CAToken_t token, uint8_t tokenLength);
  96
  97 /**
  98  * print send / receive message of CoAP.
  99  * @param[in] data      CA information which has send/receive message and endpoint.
 100  * @param[in] pdu       CoAP pdu low data.
 101  */
 102 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu);
 103
 104 #ifdef WITH_BWT
 105 void CAAddDataToSendThread(CAData_t *data)
 106 {
 107     VERIFY_NON_NULL_VOID(data, TAG, "data");
 108
 109     // add thread
 110     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 111 }
 112
 113 void CAAddDataToReceiveThread(CAData_t *data)
 114 {
 115     VERIFY_NON_NULL_VOID(data, TAG, "data");
 116
 117     // add thread
 118     CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
 119 }
 120 #endif
 121
 122 static bool CAIsSelectedNetworkAvailable()
 123 {
 124     u_arraylist_t *list = CAGetSelectedNetworkList();
 125     if (!list || u_arraylist_length(list) == 0)
 126     {
 127         OIC_LOG(ERROR, TAG, "No selected network");
 128         return false;
 129     }
 130
 131     return true;
 132 }
 133
 134 static CAData_t* CAGenerateHandlerData(const CAEndpoint_t *endpoint,
 135                                        const CARemoteId_t *identity,
 136                                        const void *data, CADataType_t dataType)
 137 {
 138     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData IN");
 139     CAInfo_t *info = NULL;
 140     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 141     if (!cadata)
 142     {
 143         OIC_LOG(ERROR, TAG, "memory allocation failed");
 144         return NULL;
 145     }
 146 #ifdef SINGLE_THREAD
 147     CAEndpoint_t* ep = endpoint;
 148 #else
 149     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 150     if (!ep)
 151     {
 152         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 153         goto exit;
 154     }
 155 #endif
 156
 157     OIC_LOG_V(DEBUG, TAG, "address : %s", ep->addr);
 158
 159     if (CA_RESPONSE_DATA == dataType)
 160     {
 161         CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 162         if (!resInfo)
 163         {
 164             OIC_LOG(ERROR, TAG, "memory allocation failed");
 165             goto exit;
 166         }
 167
 168         CAResult_t result = CAGetResponseInfoFromPDU(data, resInfo, endpoint);
 169         if (CA_STATUS_OK != result)
 170         {
 171             OIC_LOG(ERROR, TAG, "CAGetResponseInfoFromPDU Failed");
 172             CADestroyResponseInfoInternal(resInfo);
 173             goto exit;
 174         }
 175         cadata->responseInfo = resInfo;
 176         info = &resInfo->info;
 177         if (identity)
 178         {
 179             info->identity = *identity;
 180         }
 181         OIC_LOG(DEBUG, TAG, "Response Info :");
 182         CALogPayloadInfo(info);
 183     }
 184     else if (CA_REQUEST_DATA == dataType)
 185     {
 186         CARequestInfo_t* reqInfo = (CARequestInfo_t*)OICCalloc(1, sizeof(CARequestInfo_t));
 187         if (!reqInfo)
 188         {
 189             OIC_LOG(ERROR, TAG, "memory allocation failed");
 190             goto exit;
 191         }
 192
 193         CAResult_t result = CAGetRequestInfoFromPDU(data, endpoint, reqInfo);
 194         if (CA_STATUS_OK != result)
 195         {
 196             OIC_LOG(ERROR, TAG, "CAGetRequestInfoFromPDU failed");
 197             CADestroyRequestInfoInternal(reqInfo);
 198             goto exit;
 199         }
 200
 201         if (CADropSecondMessage(&caglobals.ca.requestHistory, endpoint, reqInfo->info.messageId,
 202                                 reqInfo->info.token, reqInfo->info.tokenLength))
 203         {
 204             OIC_LOG(INFO, TAG, "Second Request with same Token, Drop it");
 205             CADestroyRequestInfoInternal(reqInfo);
 206             goto exit;
 207         }
 208
 209         cadata->requestInfo = reqInfo;
 210         info = &reqInfo->info;
 211         if (identity)
 212         {
 213             info->identity = *identity;
 214         }
 215         OIC_LOG(DEBUG, TAG, "Request Info :");
 216         CALogPayloadInfo(info);
 217    }
 218     else if (CA_ERROR_DATA == dataType)
 219     {
 220         CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
 221         if (!errorInfo)
 222         {
 223             OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 224             goto exit;
 225         }
 226
 227         CAResult_t result = CAGetErrorInfoFromPDU(data, endpoint, errorInfo);
 228         if (CA_STATUS_OK != result)
 229         {
 230             OIC_LOG(ERROR, TAG, "CAGetErrorInfoFromPDU failed");
 231             OICFree(errorInfo);
 232             goto exit;
 233         }
 234
 235         cadata->errorInfo = errorInfo;
 236         info = &errorInfo->info;
 237         if (identity)
 238         {
 239             info->identity = *identity;
 240         }
 241         OIC_LOG(DEBUG, TAG, "error Info :");
 242         CALogPayloadInfo(info);
 243     }
 244
 245     cadata->remoteEndpoint = ep;
 246     cadata->dataType = dataType;
 247
 248     OIC_LOG(DEBUG, TAG, "CAGenerateHandlerData OUT");
 249     return cadata;
 250
 251 exit:
 252     OICFree(cadata);
 253 #ifndef SINGLE_THREAD
 254     CAFreeEndpoint(ep);
 255 #endif
 256     return NULL;
 257 }
 258
 259 static void CATimeoutCallback(const CAEndpoint_t *endpoint, const void *pdu, uint32_t size)
 260 {
 261     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint");
 262     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 263 #ifdef SINGLE_THREAD
 264     CAEndpoint_t* ep = endpoint;
 265 #else
 266     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 267     if (!ep)
 268     {
 269         OIC_LOG(ERROR, TAG, "clone failed");
 270         return;
 271     }
 272 #endif
 273
 274     CAResponseInfo_t* resInfo = (CAResponseInfo_t*)OICCalloc(1, sizeof(CAResponseInfo_t));
 275
 276     if (!resInfo)
 277     {
 278         OIC_LOG(ERROR, TAG, "calloc failed");
 279 #ifndef SINGLE_THREAD
 280         CAFreeEndpoint(ep);
 281 #endif
 282         return;
 283     }
 284
 285     resInfo->result = CA_RETRANSMIT_TIMEOUT;
 286     resInfo->info.type = CAGetMessageTypeFromPduBinaryData(pdu, size);
 287     resInfo->info.messageId = CAGetMessageIdFromPduBinaryData(pdu, size);
 288
 289     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_transport_t *) pdu, &(resInfo->info),
 290                                        endpoint);
 291     if (CA_STATUS_OK != res)
 292     {
 293         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 294         CADestroyResponseInfoInternal(resInfo);
 295 #ifndef SINGLE_THREAD
 296         CAFreeEndpoint(ep);
 297 #endif
 298         return;
 299     }
 300
 301     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 302     if (NULL == cadata)
 303     {
 304         OIC_LOG(ERROR, TAG, "memory allocation failed !");
 305 #ifndef SINGLE_THREAD
 306         CAFreeEndpoint(ep);
 307 #endif
 308         CADestroyResponseInfoInternal(resInfo);
 309         return;
 310     }
 311
 312     cadata->type = SEND_TYPE_UNICAST;
 313     cadata->remoteEndpoint = ep;
 314     cadata->requestInfo = NULL;
 315     cadata->responseInfo = resInfo;
 316
 317 #ifdef WITH_BWT
 318     if (CAIsSupportedBlockwiseTransfer(endpoint->adapter))
 319     {
 320         res = CARemoveBlockDataFromListWithSeed(resInfo->info.token, resInfo->info.tokenLength,
 321                                                 endpoint->addr, endpoint->port);
 322         if (CA_STATUS_OK != res)
 323         {
 324             OIC_LOG(ERROR, TAG, "CARemoveBlockDataFromListWithSeed failed");
 325         }
 326     }
 327 #endif // WITH_BWT
 328
 329 #ifdef SINGLE_THREAD
 330     CAProcessReceivedData(cadata);
 331 #else
 332     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 333 #endif
 334 }
 335
 336 static void CADestroyData(void *data, uint32_t size)
 337 {
 338     OIC_LOG(DEBUG, TAG, "CADestroyData IN");
 339     if ((size_t)size < sizeof(CAData_t))
 340     {
 341         OIC_LOG_V(ERROR, TAG, "Destroy data too small %p %d", data, size);
 342     }
 343     CAData_t *cadata = (CAData_t *) data;
 344
 345     if (NULL == cadata)
 346     {
 347         OIC_LOG(ERROR, TAG, "cadata is NULL");
 348         return;
 349     }
 350 #ifndef SINGLE_THREAD
 351     if (NULL != cadata->remoteEndpoint)
 352     {
 353         CAFreeEndpoint(cadata->remoteEndpoint);
 354     }
 355 #endif
 356
 357     if (NULL != cadata->requestInfo)
 358     {
 359         CADestroyRequestInfoInternal((CARequestInfo_t *) cadata->requestInfo);
 360     }
 361
 362     if (NULL != cadata->responseInfo)
 363     {
 364         CADestroyResponseInfoInternal((CAResponseInfo_t *) cadata->responseInfo);
 365     }
 366
 367     if (NULL != cadata->errorInfo)
 368     {
 369         CADestroyErrorInfoInternal(cadata->errorInfo);
 370     }
 371
 372     OICFree(cadata);
 373     OIC_LOG(DEBUG, TAG, "CADestroyData OUT");
 374 }
 375
 376 #ifdef SINGLE_THREAD
 377 static void CAProcessReceivedData(CAData_t *data)
 378 {
 379     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData IN");
 380     if (!data)
 381     {
 382         OIC_LOG(ERROR, TAG, "thread data error!!");
 383         return;
 384     }
 385
 386     // parse the data and call the callbacks.
 387     // #1 parse the data
 388     // #2 get endpoint
 389     CAEndpoint_t *rep = (CAEndpoint_t *)(data->remoteEndpoint);
 390     if (!rep)
 391     {
 392         OIC_LOG(ERROR, TAG, "remoteEndpoint error!!");
 393         return;
 394     }
 395
 396     if (data->requestInfo && g_requestHandler)
 397     {
 398         g_requestHandler(rep, data->requestInfo);
 399     }
 400     else if (data->responseInfo && g_responseHandler)
 401     {
 402         g_responseHandler(rep, data->responseInfo);
 403     }
 404     else if (data->errorInfo && g_errorHandler)
 405     {
 406         g_errorHandler(rep, data->errorInfo);
 407     }
 408
 409     CADestroyData(data, sizeof(CAData_t));
 410
 411     OIC_LOG(DEBUG, TAG, "CAProcessReceivedData OUT");
 412 }
 413 #endif
 414
 415 #ifndef SINGLE_THREAD
 416 static void CAReceiveThreadProcess(void *threadData)
 417 {
 418 #ifndef SINGLE_HANDLE
 419     CAData_t *data = (CAData_t *) threadData;
 420     CAProcessReceivedData(data);
 421 #else
 422     (void)threadData;
 423 #endif
 424 }
 425 #endif // SINGLE_THREAD
 426
 427 static CAResult_t CAProcessMulticastData(const CAData_t *data)
 428 {
 429     VERIFY_NON_NULL(data, TAG, "data");
 430     VERIFY_NON_NULL(data->remoteEndpoint, TAG, "remoteEndpoint");
 431
 432     coap_pdu_t *pdu = NULL;
 433     CAInfo_t *info = NULL;
 434     coap_list_t *options = NULL;
 435     coap_transport_t transport = COAP_UDP;
 436     CAResult_t res = CA_SEND_FAILED;
 437
 438     if (!data->requestInfo && !data->responseInfo)
 439     {
 440         OIC_LOG(ERROR, TAG, "request or response info is empty");
 441         return res;
 442     }
 443
 444     if (data->requestInfo)
 445     {
 446         OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 447
 448         info = &data->requestInfo->info;
 449         pdu = CAGeneratePDU(CA_GET, info, data->remoteEndpoint, &options, &transport);
 450     }
 451     else if (data->responseInfo)
 452     {
 453         OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 454
 455         info = &data->responseInfo->info;
 456         pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint,
 457                             &options, &transport);
 458     }
 459
 460     if (!pdu)
 461     {
 462         OIC_LOG(ERROR,TAG,"Failed to generate multicast PDU");
 463         CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 464         coap_delete_list(options);
 465         return res;
 466     }
 467
 468 #ifdef WITH_BWT
 469     if (CAIsSupportedBlockwiseTransfer(data->remoteEndpoint->adapter))
 470     {
 471         // Blockwise transfer
 472         res = CAAddBlockOption(&pdu, info, data->remoteEndpoint, &options);
 473         if (CA_STATUS_OK != res)
 474         {
 475             OIC_LOG(DEBUG, TAG, "CAAddBlockOption has failed");
 476             goto exit;
 477         }
 478     }
 479 #endif // WITH_BWT
 480
 481     CALogPDUInfo(data, pdu);
 482
 483     res = CASendMulticastData(data->remoteEndpoint, pdu->transport_hdr, pdu->length, data->dataType);
 484     if (CA_STATUS_OK != res)
 485     {
 486         OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 487         goto exit;
 488     }
 489
 490     coap_delete_list(options);
 491     coap_delete_pdu(pdu);
 492     return res;
 493
 494 exit:
 495     CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 496     coap_delete_list(options);
 497     coap_delete_pdu(pdu);
 498     return res;
 499 }
 500
 501 static CAResult_t CAProcessSendData(const CAData_t *data)
 502 {
 503     VERIFY_NON_NULL(data, TAG, "data");
 504     VERIFY_NON_NULL(data->remoteEndpoint, TAG, "remoteEndpoint");
 505
 506     OIC_TRACE_BEGIN(%s:CAProcessSendData, TAG);
 507
 508     CAResult_t res = CA_STATUS_FAILED;
 509
 510     CASendDataType_t type = data->type;
 511
 512     coap_pdu_t *pdu = NULL;
 513     CAInfo_t *info = NULL;
 514     coap_list_t *options = NULL;
 515     coap_transport_t transport = COAP_UDP;
 516
 517     if (SEND_TYPE_UNICAST == type)
 518     {
 519         OIC_LOG(DEBUG,TAG,"Unicast message");
 520
 521 #ifdef ROUTING_GATEWAY
 522         /*
 523          * When forwarding a packet, do not attempt retransmission as its the responsibility of
 524          * packet originator node
 525          */
 526         bool skipRetransmission = false;
 527 #endif
 528
 529         if (NULL != data->requestInfo)
 530         {
 531             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 532
 533             info = &data->requestInfo->info;
 534 #ifdef ROUTING_GATEWAY
 535             skipRetransmission = data->requestInfo->info.skipRetransmission;
 536 #endif
 537             pdu = CAGeneratePDU(data->requestInfo->method, info, data->remoteEndpoint,
 538                                 &options, &transport);
 539         }
 540         else if (NULL != data->responseInfo)
 541         {
 542             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 543
 544             info = &data->responseInfo->info;
 545 #ifdef ROUTING_GATEWAY
 546             skipRetransmission = data->responseInfo->info.skipRetransmission;
 547 #endif
 548             pdu = CAGeneratePDU(data->responseInfo->result, info, data->remoteEndpoint,
 549                                 &options, &transport);
 550         }
 551         else
 552         {
 553             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 554             OIC_TRACE_END();
 555             return CA_STATUS_INVALID_PARAM;
 556         }
 557
 558         // interface controller function call.
 559         if (NULL != pdu)
 560         {
 561 #ifdef WITH_BWT
 562             if (CAIsSupportedBlockwiseTransfer(data->remoteEndpoint->adapter))
 563             {
 564                 // Blockwise transfer
 565                 if (NULL != info)
 566                 {
 567                     CAResult_t res = CAAddBlockOption(&pdu, info,
 568                                                       data->remoteEndpoint,
 569                                                       &options);
 570                     if (CA_STATUS_OK != res)
 571                     {
 572                         OIC_LOG(INFO, TAG, "to write block option has failed");
 573                         CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 574                         coap_delete_list(options);
 575                         coap_delete_pdu(pdu);
 576                         OIC_TRACE_END();
 577                         return res;
 578                     }
 579                 }
 580             }
 581 #endif // WITH_BWT
 582             CALogPDUInfo(data, pdu);
 583
 584             OIC_LOG_V(INFO, TAG, "CASendUnicastData type : %d", data->dataType);
 585             res = CASendUnicastData(data->remoteEndpoint, pdu->transport_hdr, pdu->length, data->dataType);
 586             if (CA_STATUS_OK != res)
 587             {
 588                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 589                 CAErrorHandler(data->remoteEndpoint, pdu->transport_hdr, pdu->length, res);
 590                 coap_delete_list(options);
 591                 coap_delete_pdu(pdu);
 592                 OIC_TRACE_END();
 593                 return res;
 594             }
 595
 596 #ifdef WITH_TCP
 597             if (CAIsSupportedCoAPOverTCP(data->remoteEndpoint->adapter))
 598             {
 599                 OIC_LOG(INFO, TAG, "retransmission will be not worked");
 600             }
 601             else
 602 #endif
 603 #ifdef ROUTING_GATEWAY
 604             if (!skipRetransmission)
 605 #endif
 606             {
 607                 // for retransmission
 608                 res = CARetransmissionSentData(&g_retransmissionContext,
 609                                                data->remoteEndpoint,
 610                                                data->dataType,
 611                                                pdu->transport_hdr, pdu->length);
 612                 if ((CA_STATUS_OK != res) && (CA_NOT_SUPPORTED != res))
 613                 {
 614                     //when retransmission not supported this will return CA_NOT_SUPPORTED, ignore
 615                     OIC_LOG_V(INFO, TAG, "retransmission is not enabled due to error, res : %d", res);
 616                     coap_delete_list(options);
 617                     coap_delete_pdu(pdu);
 618                     OIC_TRACE_END();
 619                     return res;
 620                 }
 621             }
 622
 623             coap_delete_list(options);
 624             coap_delete_pdu(pdu);
 625         }
 626         else
 627         {
 628             OIC_LOG(ERROR,TAG,"Failed to generate unicast PDU");
 629             CASendErrorInfo(data->remoteEndpoint, info, CA_SEND_FAILED);
 630             OIC_TRACE_END();
 631             return CA_SEND_FAILED;
 632         }
 633     }
 634     else if (SEND_TYPE_MULTICAST == type)
 635     {
 636         OIC_LOG(DEBUG,TAG,"Multicast message");
 637 #ifdef WITH_TCP
 638         /*
 639          * If CoAP over TCP is enabled, the CoAP pdu wont be same for IP and other adapters.
 640          * That's why we need to generate two pdu's, one for IP and second for other transports.
 641          * Two possible cases we might have to split: a) when adapter is CA_DEFAULT_ADAPTER
 642          * b) when one of the adapter is IP adapter(ex: CA_ADAPTER_IP | CA_ADAPTER_GATT_BTLE)
 643          */
 644         if (data->remoteEndpoint->adapter == CA_DEFAULT_ADAPTER ||
 645                 (CA_ADAPTER_IP & data->remoteEndpoint->adapter &&
 646                     CA_ADAPTER_IP != data->remoteEndpoint->adapter))
 647         {
 648             if (data->remoteEndpoint->adapter == CA_DEFAULT_ADAPTER)
 649             {
 650                 data->remoteEndpoint->adapter = CA_ALL_ADAPTERS ^ CA_ADAPTER_IP;
 651             }
 652             else
 653             {
 654                 data->remoteEndpoint->adapter = data->remoteEndpoint->adapter ^ CA_ADAPTER_IP;
 655             }
 656             CAProcessMulticastData(data);
 657             data->remoteEndpoint->adapter = CA_ADAPTER_IP;
 658             CAProcessMulticastData(data);
 659         }
 660         else
 661         {
 662             CAProcessMulticastData(data);
 663         }
 664 #else
 665         CAProcessMulticastData(data);
 666 #endif
 667     }
 668     OIC_TRACE_END();
 669     return CA_STATUS_OK;
 670 }
 671
 672 #ifndef SINGLE_THREAD
 673 static void CASendThreadProcess(void *threadData)
 674 {
 675     CAData_t *data = (CAData_t *) threadData;
 676     CAProcessSendData(data);
 677 }
 678 #endif
 679
 680 /*
 681  * If a second message arrives with the same message ID, token and the other address
 682  * family, drop it.  Typically, IPv6 beats IPv4, so the IPv4 message is dropped.
 683  */
 684 static bool CADropSecondMessage(CAHistory_t *history, const CAEndpoint_t *ep, uint16_t id,
 685                                 CAToken_t token, uint8_t tokenLength)
 686 {
 687     if (!ep)
 688     {
 689         return true;
 690     }
 691     if (ep->adapter != CA_ADAPTER_IP)
 692     {
 693         return false;
 694     }
 695     if (!caglobals.ip.dualstack)
 696     {
 697         return false;
 698     }
 699
 700     if (tokenLength > CA_MAX_TOKEN_LEN)
 701     {
 702         /*
 703          * If token length is more than CA_MAX_TOKEN_LEN,
 704          * we compare the first CA_MAX_TOKEN_LEN bytes only.
 705          */
 706         tokenLength = CA_MAX_TOKEN_LEN;
 707     }
 708
 709     bool ret = false;
 710     CATransportFlags_t familyFlags = ep->flags & CA_IPFAMILY_MASK;
 711
 712     for (size_t i = 0; i < sizeof(history->items) / sizeof(history->items[0]); i++)
 713     {
 714         CAHistoryItem_t *item = &(history->items[i]);
 715         if (id == item->messageId && tokenLength == item->tokenLength
 716             && ep->ifindex == item->ifindex && memcmp(item->token, token, tokenLength) == 0)
 717         {
 718             OIC_LOG_V(INFO, TAG, "IPv%c duplicate message ignored",
 719                       familyFlags & CA_IPV6 ? '6' : '4');
 720             ret = true;
 721             break;
 722         }
 723     }
 724
 725     history->items[history->nextIndex].flags = familyFlags;
 726     history->items[history->nextIndex].messageId = id;
 727     history->items[history->nextIndex].ifindex = ep->ifindex;
 728     if (token && tokenLength)
 729     {
 730         memcpy(history->items[history->nextIndex].token, token, tokenLength);
 731         history->items[history->nextIndex].tokenLength = tokenLength;
 732     }
 733
 734     if (++history->nextIndex >= HISTORYSIZE)
 735     {
 736         history->nextIndex = 0;
 737     }
 738
 739     return ret;
 740 }
 741
 742 static void CAReceivedPacketCallback(const CASecureEndpoint_t *sep,
 743                                      const void *data, size_t dataLen)
 744 {
 745     VERIFY_NON_NULL_VOID(sep, TAG, "remoteEndpoint");
 746     VERIFY_NON_NULL_VOID(data, TAG, "data");
 747
 748     OIC_TRACE_BEGIN(%s:CAReceivedPacketCallback, TAG);
 749
 750     if (0 == dataLen)
 751     {
 752         OIC_LOG(ERROR, TAG, "dataLen is zero");
 753         OIC_TRACE_END();
 754         return;
 755     }
 756
 757     uint32_t code = CA_NOT_FOUND;
 758     CAData_t *cadata = NULL;
 759
 760     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code,
 761                                                 &(sep->endpoint));
 762     if (NULL == pdu)
 763     {
 764         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 765         goto exit;
 766     }
 767
 768     OIC_LOG_V(DEBUG, TAG, "code = %d", code);
 769     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 770     {
 771         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_REQUEST_DATA);
 772         if (!cadata)
 773         {
 774             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 775             coap_delete_pdu(pdu);
 776             goto exit;
 777         }
 778     }
 779     else
 780     {
 781         cadata = CAGenerateHandlerData(&(sep->endpoint), &(sep->identity), pdu, CA_RESPONSE_DATA);
 782         if (!cadata)
 783         {
 784             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, CAGenerateHandlerData failed!");
 785             coap_delete_pdu(pdu);
 786             goto exit;
 787         }
 788
 789 #ifdef WITH_TCP
 790         if (CAIsSupportedCoAPOverTCP(sep->endpoint.adapter))
 791         {
 792             OIC_LOG(INFO, TAG, "retransmission is not supported");
 793         }
 794         else
 795 #endif
 796         {
 797             // for retransmission
 798             void *retransmissionPdu = NULL;
 799             CARetransmissionReceivedData(&g_retransmissionContext, cadata->remoteEndpoint, pdu->transport_hdr,
 800                                          pdu->length, &retransmissionPdu);
 801
 802             // get token from saved data in retransmission list
 803             if (retransmissionPdu && CA_EMPTY == code)
 804             {
 805                 if (cadata->responseInfo)
 806                 {
 807                     CAInfo_t *info = &cadata->responseInfo->info;
 808                     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_transport_t *)retransmissionPdu,
 809                                                        info, &(sep->endpoint));
 810                     if (CA_STATUS_OK != res)
 811                     {
 812                         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 813                         OICFree(info->token);
 814                         info->tokenLength = 0;
 815                     }
 816                 }
 817             }
 818             OICFree(retransmissionPdu);
 819         }
 820     }
 821
 822     cadata->type = SEND_TYPE_UNICAST;
 823
 824     CALogPDUInfo(cadata, pdu);
 825
 826 #ifdef SINGLE_THREAD
 827     CAProcessReceivedData(cadata);
 828 #else
 829 #ifdef WITH_BWT
 830     if (CAIsSupportedBlockwiseTransfer(sep->endpoint.adapter))
 831     {
 832         CAResult_t res = CAReceiveBlockWiseData(pdu, &(sep->endpoint), cadata, dataLen);
 833         if (CA_NOT_SUPPORTED == res || CA_REQUEST_TIMEOUT == res)
 834         {
 835             OIC_LOG(DEBUG, TAG, "this message does not have block option");
 836             CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 837         }
 838         else
 839         {
 840             CADestroyData(cadata, sizeof(CAData_t));
 841         }
 842     }
 843     else
 844 #endif
 845     {
 846         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 847     }
 848 #endif // SINGLE_THREAD
 849
 850     coap_delete_pdu(pdu);
 851
 852 exit:
 853     OIC_LOG(DEBUG, TAG, "received pdu data :");
 854     OIC_LOG_BUFFER(DEBUG, TAG,  data, dataLen);
 855
 856     OIC_TRACE_END();
 857 }
 858
 859 void CAHandleRequestResponseCallbacks()
 860 {
 861 #ifdef SINGLE_THREAD
 862     CAReadData();
 863     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 864 #else
 865 #ifdef SINGLE_HANDLE
 866     // parse the data and call the callbacks.
 867     // #1 parse the data
 868     // #2 get endpoint
 869
 870     oc_mutex_lock(g_receiveThread.threadMutex);
 871
 872     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 873
 874     oc_mutex_unlock(g_receiveThread.threadMutex);
 875
 876     if (NULL == item || NULL == item->msg)
 877     {
 878         return;
 879     }
 880
 881     // get endpoint
 882     CAData_t *td = (CAData_t *) item->msg;
 883
 884     if (td->requestInfo && g_requestHandler)
 885     {
 886         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 887         g_requestHandler(td->remoteEndpoint, td->requestInfo);
 888     }
 889     else if (td->responseInfo && g_responseHandler)
 890     {
 891         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 892         g_responseHandler(td->remoteEndpoint, td->responseInfo);
 893     }
 894     else if (td->errorInfo && g_errorHandler)
 895     {
 896         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 897         g_errorHandler(td->remoteEndpoint, td->errorInfo);
 898     }
 899
 900     CADestroyData(item->msg, sizeof(CAData_t));
 901     OICFree(item);
 902
 903 #endif // SINGLE_HANDLE
 904 #endif // SINGLE_THREAD
 905 }
 906
 907 static CAData_t* CAPrepareSendData(const CAEndpoint_t *endpoint, const void *sendData,
 908                                    CADataType_t dataType)
 909 {
 910     OIC_LOG(DEBUG, TAG, "CAPrepareSendData IN");
 911
 912     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 913     if (!cadata)
 914     {
 915         OIC_LOG(ERROR, TAG, "memory allocation failed");
 916         return NULL;
 917     }
 918
 919     if (CA_REQUEST_DATA == dataType)
 920     {
 921 #ifdef SINGLE_THREAD
 922         CARequestInfo_t *request = (CARequestInfo_t *)sendData;
 923 #else
 924         // clone request info
 925         CARequestInfo_t *request = CACloneRequestInfo((CARequestInfo_t *)sendData);
 926         if (!request)
 927         {
 928             OIC_LOG(ERROR, TAG, "CACloneRequestInfo failed");
 929             goto exit;
 930         }
 931 #endif
 932         cadata->type = request->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 933         cadata->requestInfo =  request;
 934     }
 935     else if (CA_RESPONSE_DATA == dataType || CA_RESPONSE_FOR_RES == dataType)
 936     {
 937 #ifdef SINGLE_THREAD
 938         CAResponseInfo_t *response = (CAResponseInfo_t *)sendData;
 939 #else
 940         // clone response info
 941         CAResponseInfo_t *response = CACloneResponseInfo((CAResponseInfo_t *)sendData);
 942         if(!response)
 943         {
 944             OIC_LOG(ERROR, TAG, "CACloneResponseInfo failed");
 945             goto exit;
 946         }
 947 #endif
 948         cadata->type = response->isMulticast ? SEND_TYPE_MULTICAST : SEND_TYPE_UNICAST;
 949         cadata->responseInfo = response;
 950     }
 951     else
 952     {
 953         OIC_LOG(ERROR, TAG, "CAPrepareSendData unknown data type");
 954         goto exit;
 955     }
 956
 957 #ifdef SINGLE_THREAD
 958     CAEndpoint_t* ep = endpoint;
 959 #else
 960     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
 961     if (!ep)
 962     {
 963         OIC_LOG(ERROR, TAG, "endpoint clone failed");
 964         goto exit;
 965     }
 966 #endif
 967     cadata->remoteEndpoint = ep;
 968     cadata->dataType = dataType;
 969     return cadata;
 970
 971 exit:
 972 #ifndef SINGLE_THREAD
 973     CADestroyData(cadata, sizeof(CAData_t));
 974 #else
 975     OICFree(cadata);
 976 #endif
 977     return NULL;
 978 }
 979
 980 CAResult_t CADetachSendMessage(const CAEndpoint_t *endpoint, const void *sendMsg,
 981                                CADataType_t dataType)
 982 {
 983     VERIFY_NON_NULL(endpoint, TAG, "endpoint");
 984     VERIFY_NON_NULL(sendMsg, TAG, "sendMsg");
 985
 986     if (false == CAIsSelectedNetworkAvailable())
 987     {
 988         return CA_STATUS_FAILED;
 989     }
 990
 991 #ifdef ARDUINO
 992     // If max retransmission queue is reached, then don't handle new request
 993     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 994     {
 995         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 996         return CA_SEND_FAILED;
 997     }
 998 #endif // ARDUINO
 999
1000     CAData_t *data = CAPrepareSendData(endpoint, sendMsg, dataType);
1001     if(!data)
1002     {
1003         OIC_LOG(ERROR, TAG, "CAPrepareSendData failed");
1004         return CA_MEMORY_ALLOC_FAILED;
1005     }
1006
1007     OIC_LOG_V(DEBUG, TAG, "device ID of endpoint of this message is %s", endpoint->remoteId);
1008
1009 #if defined(TCP_ADAPTER) && defined(WITH_CLOUD)
1010     CAResult_t ret = CACMGetMessageData(data);
1011     if (CA_STATUS_OK != ret)
1012     {
1013         OIC_LOG(DEBUG, TAG, "Ignore ConnectionManager");
1014     }
1015 #endif
1016
1017 #ifdef SINGLE_THREAD
1018     CAResult_t result = CAProcessSendData(data);
1019     if (CA_STATUS_OK != result)
1020     {
1021         OIC_LOG(ERROR, TAG, "CAProcessSendData failed");
1022         OICFree(data);
1023         return result;
1024     }
1025
1026     OICFree(data);
1027
1028 #else
1029     if (SEND_TYPE_UNICAST == data->type && CAIsLocalEndpoint(data->remoteEndpoint))
1030     {
1031         OIC_LOG(DEBUG, TAG,
1032                 "This is a loopback message. Transfer it to the receive queue directly");
1033         CAQueueingThreadAddData(&g_receiveThread, data, sizeof(CAData_t));
1034         return CA_STATUS_OK;
1035     }
1036 #ifdef WITH_BWT
1037     if (CAIsSupportedBlockwiseTransfer(endpoint->adapter))
1038     {
1039         // send block data
1040         CAResult_t res = CASendBlockWiseData(data);
1041         if (CA_NOT_SUPPORTED == res)
1042         {
1043             OIC_LOG(DEBUG, TAG, "normal msg will be sent");
1044             CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1045             return CA_STATUS_OK;
1046         }
1047         else
1048         {
1049             CADestroyData(data, sizeof(CAData_t));
1050         }
1051         return res;
1052     }
1053     else
1054 #endif // WITH_BWT
1055     {
1056         CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
1057     }
1058 #endif // SINGLE_THREAD
1059
1060     return CA_STATUS_OK;
1061 }
1062
1063 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
1064                              CAErrorCallback errorHandler)
1065 {
1066     g_requestHandler = ReqHandler;
1067     g_responseHandler = RespHandler;
1068     g_errorHandler = errorHandler;
1069 }
1070
1071 void CASetNetworkMonitorCallback(CANetworkMonitorCallback nwMonitorHandler)
1072 {
1073     g_nwMonitorHandler = nwMonitorHandler;
1074 }
1075
1076 CAResult_t CAInitializeMessageHandler(CATransportAdapter_t transportType)
1077 {
1078     CASetPacketReceivedCallback(CAReceivedPacketCallback);
1079     CASetErrorHandleCallback(CAErrorHandler);
1080
1081 #ifndef SINGLE_THREAD
1082     // create thread pool
1083     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
1084     if (CA_STATUS_OK != res)
1085     {
1086         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
1087         return res;
1088     }
1089
1090     // send thread initialize
1091     res = CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
1092                                      CASendThreadProcess, CADestroyData);
1093     if (CA_STATUS_OK != res)
1094     {
1095         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
1096         return res;
1097     }
1098
1099     // start send thread
1100     res = CAQueueingThreadStart(&g_sendThread);
1101     if (CA_STATUS_OK != res)
1102     {
1103         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
1104         return res;
1105     }
1106
1107     // receive thread initialize
1108     res = CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
1109                                      CAReceiveThreadProcess, CADestroyData);
1110     if (CA_STATUS_OK != res)
1111     {
1112         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
1113         return res;
1114     }
1115
1116 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1117     // start receive thread
1118     res = CAQueueingThreadStart(&g_receiveThread);
1119     if (CA_STATUS_OK != res)
1120     {
1121         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
1122         return res;
1123     }
1124 #endif // SINGLE_HANDLE
1125
1126     // retransmission initialize
1127     res = CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle,
1128                                      CASendUnicastData, CATimeoutCallback, NULL);
1129     if (CA_STATUS_OK != res)
1130     {
1131         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1132         return res;
1133     }
1134
1135 #ifdef WITH_BWT
1136     // block-wise transfer initialize
1137     res = CAInitializeBlockWiseTransfer(CAAddDataToSendThread, CAAddDataToReceiveThread);
1138     if (CA_STATUS_OK != res)
1139     {
1140         OIC_LOG(ERROR, TAG, "Failed to Initialize BlockWiseTransfer.");
1141         return res;
1142     }
1143 #endif
1144
1145     // start retransmission
1146     res = CARetransmissionStart(&g_retransmissionContext);
1147     if (CA_STATUS_OK != res)
1148     {
1149         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
1150         return res;
1151     }
1152
1153     // initialize interface adapters by controller
1154     CAInitializeAdapters(g_threadPoolHandle, transportType);
1155 #else
1156     // retransmission initialize
1157     CAResult_t res = CARetransmissionInitialize(&g_retransmissionContext, NULL, CASendUnicastData,
1158                                                 CATimeoutCallback, NULL);
1159     if (CA_STATUS_OK != res)
1160     {
1161         OIC_LOG(ERROR, TAG, "Failed to Initialize Retransmission.");
1162         return res;
1163     }
1164
1165     CAInitializeAdapters();
1166 #endif // SINGLE_THREAD
1167
1168     return CA_STATUS_OK;
1169 }
1170
1171 void CATerminateMessageHandler()
1172 {
1173 #ifndef SINGLE_THREAD
1174     CATransportAdapter_t connType;
1175     u_arraylist_t *list = CAGetSelectedNetworkList();
1176     size_t length = u_arraylist_length(list);
1177
1178     for (size_t i = 0; i < length; i++)
1179     {
1180         void* ptrType = u_arraylist_get(list, i);
1181
1182         if (NULL == ptrType)
1183         {
1184             continue;
1185         }
1186
1187         connType = *(CATransportAdapter_t *)ptrType;
1188         CAStopAdapter(connType);
1189     }
1190
1191     // stop retransmission
1192     if (NULL != g_retransmissionContext.threadMutex)
1193     {
1194         CARetransmissionStop(&g_retransmissionContext);
1195     }
1196
1197     // stop thread
1198     // delete thread data
1199     if (NULL != g_sendThread.threadMutex)
1200     {
1201         CAQueueingThreadStop(&g_sendThread);
1202     }
1203
1204     // stop thread
1205     // delete thread data
1206     if (NULL != g_receiveThread.threadMutex)
1207     {
1208 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
1209         CAQueueingThreadStop(&g_receiveThread);
1210 #endif
1211     }
1212
1213     // destroy thread pool
1214     if (NULL != g_threadPoolHandle)
1215     {
1216         ca_thread_pool_free(g_threadPoolHandle);
1217         g_threadPoolHandle = NULL;
1218     }
1219
1220 #ifdef WITH_BWT
1221     CATerminateBlockWiseTransfer();
1222 #endif
1223     CARetransmissionDestroy(&g_retransmissionContext);
1224     CAQueueingThreadDestroy(&g_sendThread);
1225     CAQueueingThreadDestroy(&g_receiveThread);
1226
1227     // terminate interface adapters by controller
1228     CATerminateAdapters();
1229 #else
1230     // terminate interface adapters by controller
1231     CATerminateAdapters();
1232
1233     // stop retransmission
1234     CARetransmissionStop(&g_retransmissionContext);
1235     CARetransmissionDestroy(&g_retransmissionContext);
1236 #endif // SINGLE_THREAD
1237 }
1238
1239 static void CALogPayloadInfo(CAInfo_t *info)
1240 {
1241     if (info)
1242     {
1243         if (info->options)
1244         {
1245             for (uint32_t i = 0; i < info->numOptions; i++)
1246             {
1247                 OIC_LOG_V(DEBUG, TAG, "optionID: %u", info->options[i].optionID);
1248
1249                 OIC_LOG_V(DEBUG, TAG, "list: %s", info->options[i].optionData);
1250             }
1251         }
1252
1253         if (info->payload)
1254         {
1255             OIC_LOG_V(DEBUG, TAG, "payload: %p(%" PRIuPTR ")", info->payload,
1256                       info->payloadSize);
1257         }
1258
1259         if (info->token)
1260         {
1261             OIC_LOG(DEBUG, TAG, "token:");
1262             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) info->token,
1263                            info->tokenLength);
1264         }
1265         OIC_LOG_V(DEBUG, TAG, "msgID: %u", info->messageId);
1266     }
1267     else
1268     {
1269         OIC_LOG(DEBUG, TAG, "info is NULL, cannot output log data");
1270     }
1271 }
1272
1273 void CAErrorHandler(const CAEndpoint_t *endpoint,
1274                     const void *data, size_t dataLen,
1275                     CAResult_t result)
1276 {
1277     OIC_LOG(DEBUG, TAG, "CAErrorHandler IN");
1278     VERIFY_NON_NULL_VOID(endpoint, TAG, "remoteEndpoint");
1279     VERIFY_NON_NULL_VOID(data, TAG, "data");
1280
1281     if (0 == dataLen)
1282     {
1283         OIC_LOG(ERROR, TAG, "dataLen is zero");
1284         return;
1285     }
1286
1287 #ifndef SINGLE_THREAD
1288     uint32_t code = CA_NOT_FOUND;
1289     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1290     //Get PDU data
1291     coap_pdu_t *pdu = (coap_pdu_t *)CAParsePDU((const char *)data, dataLen, &code, endpoint);
1292     if (NULL == pdu)
1293     {
1294         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1295         return;
1296     }
1297
1298     CAData_t *cadata = CAGenerateHandlerData(endpoint, NULL, pdu, CA_ERROR_DATA);
1299     if (!cadata)
1300     {
1301         OIC_LOG(ERROR, TAG, "CAErrorHandler, CAGenerateHandlerData failed!");
1302         coap_delete_pdu(pdu);
1303         return;
1304     }
1305
1306     cadata->errorInfo->result = result;
1307
1308     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1309     coap_delete_pdu(pdu);
1310 #else
1311     (void)result;
1312 #endif
1313
1314     OIC_LOG(DEBUG, TAG, "CAErrorHandler OUT");
1315     return;
1316 }
1317
1318 static void CASendErrorInfo(const CAEndpoint_t *endpoint, const CAInfo_t *info, CAResult_t result)
1319 {
1320     OIC_LOG(DEBUG, TAG, "CASendErrorInfo IN");
1321 #ifndef SINGLE_THREAD
1322     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1323     if (!cadata)
1324     {
1325         OIC_LOG(ERROR, TAG, "cadata memory allocation failed");
1326         return;
1327     }
1328
1329     CAEndpoint_t* ep = CACloneEndpoint(endpoint);
1330     if (!ep)
1331     {
1332         OIC_LOG(ERROR, TAG, "endpoint clone failed");
1333         OICFree(cadata);
1334         return;
1335     }
1336
1337     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *)OICCalloc(1, sizeof (CAErrorInfo_t));
1338     if (!errorInfo)
1339     {
1340         OIC_LOG(ERROR, TAG, "errorInfo memory allocation failed");
1341         OICFree(cadata);
1342         CAFreeEndpoint(ep);
1343         return;
1344     }
1345
1346     CAResult_t res = CACloneInfo(info, &errorInfo->info);
1347     if (CA_STATUS_OK != res)
1348     {
1349         OIC_LOG(ERROR, TAG, "info clone failed");
1350         OICFree(cadata);
1351         OICFree(errorInfo);
1352         CAFreeEndpoint(ep);
1353         return;
1354     }
1355
1356     errorInfo->result = result;
1357     cadata->remoteEndpoint = ep;
1358     cadata->errorInfo = errorInfo;
1359     cadata->dataType = CA_ERROR_DATA;
1360
1361     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1362 #endif
1363     OIC_LOG(DEBUG, TAG, "CASendErrorInfo OUT");
1364 }
1365
1366 #ifndef ARDUINO
1367 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1368 {
1369     OIC_LOG(DEBUG, TAG, "CALogPDUInfo");
1370
1371     VERIFY_NON_NULL_VOID(data, TAG, "data");
1372     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1373
1374     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1375     if(SEND_TYPE_MULTICAST == data->type)
1376     {
1377         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = true");
1378     }
1379     else
1380     {
1381         OIC_LOG(DEBUG, ANALYZER_TAG, "Is Multicast = false");
1382     }
1383
1384     if (NULL != data->remoteEndpoint)
1385     {
1386         CALogAdapterTypeInfo(data->remoteEndpoint->adapter);
1387         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Address = [%s]:[%d]", data->remoteEndpoint->addr,
1388                   data->remoteEndpoint->port);
1389     }
1390
1391     switch(data->dataType)
1392     {
1393         case CA_REQUEST_DATA:
1394             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_REQUEST_DATA]");
1395             break;
1396         case CA_RESPONSE_DATA:
1397             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_DATA]");
1398             break;
1399         case CA_ERROR_DATA:
1400             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_ERROR_DATA]");
1401             break;
1402         case CA_RESPONSE_FOR_RES:
1403             OIC_LOG(DEBUG, ANALYZER_TAG, "Data Type = [CA_RESPONSE_FOR_RES]");
1404             break;
1405         default:
1406             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Data Type = [%d]", data->dataType);
1407             break;
1408     }
1409     OIC_LOG(DEBUG, ANALYZER_TAG, "-------------------------------------------------");
1410
1411     const CAInfo_t *info = NULL;
1412     if (NULL != data->requestInfo)
1413     {
1414         switch(data->requestInfo->method)
1415         {
1416             case CA_GET:
1417                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [GET]");
1418                 break;
1419             case CA_POST:
1420                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [POST]");
1421                 break;
1422             case CA_PUT:
1423                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [PUT]");
1424                 break;
1425             case CA_DELETE:
1426                 OIC_LOG(DEBUG, ANALYZER_TAG, "Method = [DELETE]");
1427                 break;
1428             default:
1429                 OIC_LOG_V(DEBUG, ANALYZER_TAG, "Method = [%d]", data->requestInfo->method);
1430                 break;
1431         }
1432         info = &data->requestInfo->info;
1433     }
1434
1435     if (NULL != data->responseInfo)
1436     {
1437         OIC_LOG_V(DEBUG, ANALYZER_TAG, "result code = [%d]", data->responseInfo->result);
1438         info = &data->responseInfo->info;
1439     }
1440
1441     if (pdu->transport_hdr)
1442     {
1443         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Msg ID = [%u]",
1444             (uint32_t)ntohs(pdu->transport_hdr->udp.id));
1445     }
1446
1447     if (info)
1448     {
1449         OIC_LOG(DEBUG, ANALYZER_TAG, "Coap Token");
1450         OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, (const uint8_t *) info->token, info->tokenLength);
1451         OIC_LOG_V(DEBUG, ANALYZER_TAG, "Res URI = [%s]", info->resourceUri);
1452
1453         if (CA_FORMAT_APPLICATION_CBOR == info->payloadFormat)
1454         {
1455             OIC_LOG(DEBUG, ANALYZER_TAG, "Payload Format = [CA_FORMAT_APPLICATION_CBOR]");
1456         }
1457         else
1458         {
1459             OIC_LOG_V(DEBUG, ANALYZER_TAG, "Payload Format = [%d]", info->payloadFormat);
1460         }
1461     }
1462
1463     size_t payloadLen = (pdu->data) ? (unsigned char *) pdu->hdr + pdu->length - pdu->data : 0;
1464     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Message Full Size = [%lu]", pdu->length);
1465     OIC_LOG(DEBUG, ANALYZER_TAG, "CoAP Header (+ 0xFF)");
1466     OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG,  (const uint8_t *) pdu->transport_hdr,
1467                    pdu->length - payloadLen);
1468     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Header size = [%lu]", pdu->length - payloadLen);
1469
1470     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload");
1471 //    OIC_LOG_BUFFER(DEBUG, ANALYZER_TAG, pdu->data, payloadLen);
1472     OIC_LOG_V(DEBUG, ANALYZER_TAG, "CoAP Payload Size = [%lu]", payloadLen);
1473     OIC_LOG(DEBUG, ANALYZER_TAG, "=================================================");
1474 }
1475 #else
1476 static void CALogPDUInfo(const CAData_t *data, const coap_pdu_t *pdu)
1477 {
1478     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
1479     (void)data;
1480
1481     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
1482     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->transport_hdr->udp.type);
1483     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->transport_hdr->udp.code);
1484     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
1485     OIC_LOG_BUFFER(DEBUG, TAG, pdu->transport_hdr->udp.token,
1486                    pdu->transport_hdr->udp.token_length);
1487 }
1488 #endif