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