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 "cainterfacecontroller.h"
  30 #include "caprotocolmessage.h"
  31 #include "caretransmission.h"
  32 #include "caadapterutils.h"
  33 #include "uqueue.h"
  34 #include "logger.h"
  35 #include "config.h" /* for coap protocol */
  36 #include "cathreadpool.h" /* for thread pool */
  37 #include "caqueueingthread.h"
  38 #include "camutex.h"
  39 #include "oic_malloc.h"
  40 #include "oic_string.h"
  41 #include "canetworkconfigurator.h"
  42
  43 #define TAG PCF("CA")
  44 #define SINGLE_HANDLE
  45
  46 #define MAX_THREAD_POOL_SIZE    20
  47
  48 typedef enum
  49 {
  50     SEND_TYPE_MULTICAST = 0, SEND_TYPE_UNICAST
  51 } CASendDataType_t;
  52
  53 typedef enum
  54 {
  55     CA_REQUEST_DATA = 1,
  56     CA_RESPONSE_DATA = 2,
  57     CA_ERROR_DATA = 3,
  58 } CADataType_t;
  59
  60 typedef struct
  61 {
  62     CASendDataType_t type;
  63     CARemoteEndpoint_t *remoteEndpoint;
  64     CARequestInfo_t *requestInfo;
  65     CAResponseInfo_t *responseInfo;
  66     CAErrorInfo_t *errorInfo;
  67     CAHeaderOption_t *options;
  68     CADataType_t dataType;
  69     uint8_t numOptions;
  70 } CAData_t;
  71
  72 // thread pool handle
  73 static ca_thread_pool_t g_threadPoolHandle = NULL;
  74
  75 // message handler main thread
  76 static CAQueueingThread_t g_sendThread;
  77 static CAQueueingThread_t g_receiveThread;
  78
  79 static CARetransmission_t g_retransmissionContext;
  80
  81 // handler field
  82 static CARequestCallback g_requestHandler = NULL;
  83 static CAResponseCallback g_responseHandler = NULL;
  84 static CAErrorCallback g_errorHandler = NULL;
  85
  86 static void CAErrorHandler(const CARemoteEndpoint_t *remoteEndpoint,
  87                            const void *data, uint32_t dataLen, CAResult_t result);
  88
  89 static bool CAIsSelectedNetworkAvailable()
  90 {
  91     u_arraylist_t *list = CAGetSelectedNetworkList();
  92     if (!list || list->length == 0)
  93     {
  94         OIC_LOG(ERROR, TAG, "No selected network");
  95         return false;
  96     }
  97
  98     return true;
  99 }
 100
 101 static void CATimeoutCallback(const CARemoteEndpoint_t *endpoint, const void *pdu, uint32_t size)
 102 {
 103     OIC_LOG(DEBUG, TAG, "IN");
 104     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint");
 105     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 106
 107     CARemoteEndpoint_t* ep = CACloneRemoteEndpoint(endpoint);
 108     if (NULL == ep)
 109     {
 110         OIC_LOG(ERROR, TAG, "clone failed");
 111         return;
 112     }
 113
 114     CAResponseInfo_t* resInfo = (CAResponseInfo_t*) OICCalloc(1, sizeof(CAResponseInfo_t));
 115
 116     if (NULL == resInfo)
 117     {
 118         OIC_LOG(ERROR, TAG, "calloc failed");
 119         CADestroyRemoteEndpointInternal(ep);
 120         return;
 121     }
 122
 123     resInfo->result = CA_RETRANSMIT_TIMEOUT;
 124     resInfo->info.type = CAGetMessageTypeFromPduBinaryData(pdu, size);
 125     resInfo->info.messageId = CAGetMessageIdFromPduBinaryData(pdu, size);
 126     CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *) pdu, &(resInfo->info));
 127     if (CA_STATUS_OK != res)
 128     {
 129         OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 130         OICFree(resInfo->info.token);
 131         OICFree(resInfo);
 132         CADestroyRemoteEndpointInternal(ep);
 133         return;
 134     }
 135
 136     CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 137     if (NULL == cadata)
 138     {
 139         OIC_LOG(ERROR, TAG, "memory allocation failed !");
 140         CADestroyRemoteEndpointInternal(ep);
 141         OICFree(resInfo);
 142         return;
 143     }
 144
 145     cadata->type = SEND_TYPE_UNICAST;
 146     cadata->remoteEndpoint = ep;
 147     cadata->requestInfo = NULL;
 148     cadata->responseInfo = resInfo;
 149
 150     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 151     OIC_LOG(DEBUG, TAG, "OUT");
 152 }
 153
 154 static void CADataDestroyer(void *data, uint32_t size)
 155 {
 156     OIC_LOG(DEBUG, TAG, "IN");
 157     CAData_t *cadata = (CAData_t *) data;
 158
 159     if (NULL == cadata)
 160     {
 161         OIC_LOG(ERROR, TAG, "cadata is NULL");
 162         return;
 163     }
 164
 165     if (NULL != cadata->remoteEndpoint)
 166     {
 167         CADestroyRemoteEndpointInternal((CARemoteEndpoint_t *) cadata->remoteEndpoint);
 168     }
 169
 170     if (NULL != cadata->requestInfo)
 171     {
 172         CADestroyRequestInfoInternal((CARequestInfo_t *) cadata->requestInfo);
 173     }
 174
 175     if (NULL != cadata->responseInfo)
 176     {
 177         CADestroyResponseInfoInternal((CAResponseInfo_t *) cadata->responseInfo);
 178     }
 179
 180     if (NULL != cadata->errorInfo)
 181     {
 182        CAInfo_t *info = &cadata->errorInfo->info;
 183        OICFree(info->token);
 184        OICFree(info->options);
 185        OICFree(info->payload);
 186        OICFree(cadata->errorInfo);
 187     }
 188
 189     OICFree(cadata->options);
 190     OICFree(cadata);
 191     OIC_LOG(DEBUG, TAG, "OUT");
 192 }
 193
 194 static void CAReceiveThreadProcess(void *threadData)
 195 {
 196     OIC_LOG(DEBUG, TAG, "IN");
 197     // Currently not supported
 198     // This will be enabled when RI supports multi threading
 199 #ifndef SINGLE_HANDLE
 200     CAData_t *data = (CAData_t *) threadData;
 201
 202     if (NULL == data)
 203     {
 204         OIC_LOG(ERROR, TAG, "thread data error!!");
 205         return;
 206     }
 207
 208     // parse the data and call the callbacks.
 209     // #1 parse the data
 210     // #2 get endpoint
 211     CARemoteEndpoint_t *rep = (CARemoteEndpoint_t *)(data->remoteEndpoint);
 212
 213     if (NULL == rep)
 214     {
 215         OIC_LOG(ERROR, TAG, "remoteEndpoint error!!");
 216         return;
 217     }
 218
 219     if (data->requestInfo && g_requestHandler)
 220     {
 221         g_requestHandler(rep, data->requestInfo);
 222     }
 223     else if (data->responseInfo && g_responseHandler)
 224     {
 225         g_responseHandler(rep, data->responseInfo);
 226     }
 227     else if (data->errorInfo && g_errorHandler)
 228     {
 229         g_errorHandler(rep, data->errorInfo);
 230     }
 231
 232 #endif /* SINGLE_HANDLE */
 233     OIC_LOG(DEBUG, TAG, "OUT");
 234 }
 235
 236 static void CASendThreadProcess(void *threadData)
 237 {
 238     OIC_LOG(DEBUG, TAG, "IN");
 239     CAData_t *data = (CAData_t *) threadData;
 240
 241     VERIFY_NON_NULL_VOID(data, TAG, "data");
 242     VERIFY_NON_NULL_VOID(data->remoteEndpoint, TAG, "remoteEndpoint");
 243
 244     CAResult_t res = CA_STATUS_FAILED;
 245
 246     CASendDataType_t type = data->type;
 247
 248     if (SEND_TYPE_UNICAST == type)
 249     {
 250         coap_pdu_t *pdu = NULL;
 251
 252         if (NULL != data->requestInfo)
 253         {
 254             OIC_LOG(DEBUG, TAG, "requestInfo is available..");
 255
 256             pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri,
 257                                                data->requestInfo->method,
 258                                                data->requestInfo->info);
 259         }
 260         else if (NULL != data->responseInfo)
 261         {
 262             OIC_LOG(DEBUG, TAG, "responseInfo is available..");
 263
 264             pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri,
 265                                                data->responseInfo->result,
 266                                                data->responseInfo->info);
 267         }
 268         else
 269         {
 270             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 271         }
 272
 273         // interface controller function call.
 274         if (NULL != pdu)
 275         {
 276             CALogPDUInfo(pdu);
 277
 278             res = CASendUnicastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 279             if (CA_STATUS_OK != res)
 280             {
 281                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 282                 CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 283                 coap_delete_pdu(pdu);
 284                 return;
 285             }
 286             // for retransmission
 287             res = CARetransmissionSentData(&g_retransmissionContext, data->remoteEndpoint, pdu->hdr,
 288                                            pdu->length);
 289             if (CA_STATUS_OK != res)
 290             {
 291                 OIC_LOG_V(INFO, TAG, "retransmission will be not working: %d", res);
 292                 coap_delete_pdu(pdu);
 293                 return;
 294             }
 295
 296             coap_delete_pdu(pdu);
 297         }
 298     }
 299     else if (SEND_TYPE_MULTICAST == type)
 300     {
 301         OIC_LOG(DEBUG, TAG, "both requestInfo & responseInfo is not available");
 302
 303         CAInfo_t info = data->requestInfo->info;
 304
 305         info.options = data->options;
 306         info.numOptions = data->numOptions;
 307
 308         coap_pdu_t *pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri, CA_GET,
 309                                                        info);
 310
 311         if (NULL != pdu)
 312         {
 313             CALogPDUInfo(pdu);
 314
 315             res = CASendMulticastData(pdu->hdr, pdu->length);
 316             if(CA_STATUS_OK != res)
 317             {
 318                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 319                 CAErrorHandler(data->remoteEndpoint, pdu->hdr, pdu->length, res);
 320                 coap_delete_pdu(pdu);
 321                 return;
 322             }
 323
 324             coap_delete_pdu(pdu);
 325         }
 326     }
 327
 328     OIC_LOG(DEBUG, TAG, "OUT");
 329 }
 330
 331 static void CAReceivedPacketCallback(CARemoteEndpoint_t *endpoint, void *data, uint32_t dataLen)
 332 {
 333     OIC_LOG(DEBUG, TAG, "IN");
 334     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint");
 335     VERIFY_NON_NULL_VOID(data, TAG, "data");
 336
 337     uint32_t code = CA_NOT_FOUND;
 338     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code);
 339     OICFree(data);
 340
 341     if (NULL == pdu)
 342     {
 343         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 344         CAAdapterFreeRemoteEndpoint(endpoint);
 345         return;
 346     }
 347
 348     char uri[CA_MAX_URI_LENGTH] = { };
 349
 350     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 351     {
 352         CARequestInfo_t *ReqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 353         if (NULL == ReqInfo)
 354         {
 355             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 356             coap_delete_pdu(pdu);
 357             CAAdapterFreeRemoteEndpoint(endpoint);
 358             return;
 359         }
 360
 361         CAResult_t res = CAGetRequestInfoFromPDU(pdu, ReqInfo, uri, sizeof(uri));
 362         if (CA_STATUS_OK != res)
 363         {
 364             OIC_LOG_V(ERROR, TAG, "CAGetRequestInfoFromPDU failed : %d", res);
 365             OICFree(ReqInfo);
 366             coap_delete_pdu(pdu);
 367             CAAdapterFreeRemoteEndpoint(endpoint);
 368             return;
 369         }
 370
 371         if (NULL != ReqInfo->info.options)
 372         {
 373             uint32_t i;
 374             for (i = 0; i < ReqInfo->info.numOptions; i++)
 375             {
 376                 OIC_LOG_V(DEBUG, TAG, "Request- optionID: %d", ReqInfo->info.options[i].optionID);
 377
 378                 OIC_LOG_V(DEBUG, TAG, "Request- list: %s", ReqInfo->info.options[i].optionData);
 379             }
 380         }
 381
 382         if (NULL != ReqInfo->info.payload)
 383         {
 384             OIC_LOG_V(DEBUG, TAG, "Request- payload: %s", ReqInfo->info.payload);
 385         }
 386         OIC_LOG_V(DEBUG, TAG, "Request- code: %d", ReqInfo->method);
 387         if (NULL != ReqInfo->info.token)
 388         {
 389             OIC_LOG(DEBUG, TAG, "Request- token:");
 390             OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) ReqInfo->info.token,
 391                            ReqInfo->info.tokenLength);
 392         }
 393
 394         OIC_LOG_V(DEBUG, TAG, "Request- code: %d", ReqInfo->method);
 395         OIC_LOG(DEBUG, TAG, "Request- token");
 396         OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) ReqInfo->info.token, CA_MAX_TOKEN_LEN);
 397         OIC_LOG_V(DEBUG, TAG, "Request- msgID : %d", ReqInfo->info.messageId);
 398         if (NULL != endpoint)
 399         {
 400             endpoint->resourceUri = (char *) OICMalloc(sizeof(uri) + 1);
 401             if (NULL == endpoint->resourceUri)
 402             {
 403                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 404                 OICFree(ReqInfo);
 405                 coap_delete_pdu(pdu);
 406                 CAAdapterFreeRemoteEndpoint(endpoint);
 407                 return;
 408             }
 409             memcpy(endpoint->resourceUri, uri, sizeof(uri));
 410             endpoint->resourceUri[sizeof(uri)] = '\0';
 411             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 412         }
 413         // store the data at queue.
 414         CAData_t *cadata = NULL;
 415         cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 416         if (NULL == cadata)
 417         {
 418             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
 419             OICFree(ReqInfo);
 420             coap_delete_pdu(pdu);
 421             CAAdapterFreeRemoteEndpoint(endpoint);
 422             return;
 423         }
 424
 425         cadata->type = SEND_TYPE_UNICAST;
 426         cadata->remoteEndpoint = endpoint;
 427         cadata->requestInfo = ReqInfo;
 428         cadata->responseInfo = NULL;
 429         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 430     }
 431     else
 432     {
 433         CAResponseInfo_t *ResInfo = (CAResponseInfo_t *) OICCalloc(1, sizeof(CAResponseInfo_t));
 434         if (NULL == ResInfo)
 435         {
 436             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 437             coap_delete_pdu(pdu);
 438             CAAdapterFreeRemoteEndpoint(endpoint);
 439             return;
 440         }
 441
 442         CAResult_t res = CAGetResponseInfoFromPDU(pdu, ResInfo, uri, sizeof(uri));
 443         if (CA_STATUS_OK != res)
 444         {
 445             OIC_LOG_V(ERROR, TAG, "CAGetResponseInfoFromPDU failed : %d", res);
 446             OICFree(ResInfo);
 447             coap_delete_pdu(pdu);
 448             CAAdapterFreeRemoteEndpoint(endpoint);
 449             return;
 450         }
 451
 452         if (NULL != ResInfo->info.options)
 453         {
 454             uint32_t i;
 455             for (i = 0; i < ResInfo->info.numOptions; i++)
 456             {
 457                 OIC_LOG_V(DEBUG, TAG, "Response- optionID: %d", ResInfo->info.options[i].optionID);
 458
 459                 OIC_LOG_V(DEBUG, TAG, "Response- list: %s", ResInfo->info.options[i].optionData);
 460             }
 461         }
 462
 463         if (NULL != ResInfo->info.payload)
 464         {
 465             OIC_LOG_V(DEBUG, TAG, "Response- payload: %s", ResInfo->info.payload);
 466         }
 467         OIC_LOG_V(DEBUG, TAG, "Response- code: %d", ResInfo->result);
 468         OIC_LOG_V(DEBUG, TAG, "Response- token : %s", ResInfo->info.token);
 469         OIC_LOG_V(DEBUG, TAG, "Response- msgID: %d", ResInfo->info.messageId);
 470
 471         if (NULL != endpoint)
 472         {
 473             endpoint->resourceUri = (char *) OICMalloc(sizeof(uri) + 1);
 474             if (NULL == endpoint->resourceUri)
 475             {
 476                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
 477                 OICFree(ResInfo);
 478                 coap_delete_pdu(pdu);
 479                 CAAdapterFreeRemoteEndpoint(endpoint);
 480                 return;
 481             }
 482             memcpy(endpoint->resourceUri, uri, sizeof(uri));
 483             endpoint->resourceUri[sizeof(uri)] = '\0';
 484             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 485         }
 486
 487         // store the data at queue.
 488         CAData_t *cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 489         if (NULL == cadata)
 490         {
 491             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
 492             OICFree(ResInfo);
 493             coap_delete_pdu(pdu);
 494             CAAdapterFreeRemoteEndpoint(endpoint);
 495             return;
 496         }
 497
 498         cadata->type = SEND_TYPE_UNICAST;
 499         cadata->remoteEndpoint = endpoint;
 500         cadata->requestInfo = NULL;
 501
 502         // for retransmission
 503         void *retransmissionPdu = NULL;
 504         CARetransmissionReceivedData(&g_retransmissionContext, endpoint, pdu->hdr, pdu->length,
 505                                      &retransmissionPdu);
 506
 507         // get token from saved data in retransmission list
 508         if (retransmissionPdu && CA_EMPTY == code)
 509         {
 510             CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *)retransmissionPdu,
 511                                                &(ResInfo->info));
 512             if (CA_STATUS_OK != res)
 513             {
 514                 OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 515                 OICFree(ResInfo->info.token);
 516             }
 517         }
 518         OICFree(retransmissionPdu);
 519         cadata->responseInfo = ResInfo;
 520
 521         CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
 522     }
 523
 524     if (pdu)
 525     {
 526         coap_delete_pdu(pdu);
 527     }
 528     OIC_LOG(DEBUG, TAG, "OUT");
 529 }
 530
 531 static void CANetworkChangedCallback(CALocalConnectivity_t *info, CANetworkStatus_t status)
 532 {
 533     OIC_LOG(DEBUG, TAG, "IN");
 534
 535     OIC_LOG(DEBUG, TAG, "OUT");
 536 }
 537
 538 void CAHandleRequestResponseCallbacks()
 539 {
 540     OIC_LOG(DEBUG, TAG, "CAHandleRequestResponseCallbacks IN");
 541
 542 #ifdef SINGLE_HANDLE
 543     // parse the data and call the callbacks.
 544     // #1 parse the data
 545     // #2 get endpoint
 546
 547     ca_mutex_lock(g_receiveThread.threadMutex);
 548
 549     u_queue_message_t *item = u_queue_get_element(g_receiveThread.dataQueue);
 550
 551     ca_mutex_unlock(g_receiveThread.threadMutex);
 552
 553     if (NULL == item)
 554     {
 555         return;
 556     }
 557
 558     // get values
 559     void *msg = item->msg;
 560
 561     if (NULL == msg)
 562     {
 563         return;
 564     }
 565
 566     // get endpoint
 567     CAData_t *td = (CAData_t *) msg;
 568     CARemoteEndpoint_t *rep = td->remoteEndpoint;
 569
 570     if (NULL == rep)
 571     {
 572         return;
 573     }
 574
 575     if (td->requestInfo && g_requestHandler)
 576     {
 577         OIC_LOG_V(DEBUG, TAG, "request callback : %d", td->requestInfo->info.numOptions);
 578         g_requestHandler(rep, td->requestInfo);
 579     }
 580     else if (td->responseInfo && g_responseHandler)
 581     {
 582         OIC_LOG_V(DEBUG, TAG, "response callback : %d", td->responseInfo->info.numOptions);
 583         g_responseHandler(rep, td->responseInfo);
 584     }
 585     else if (td->errorInfo && g_errorHandler)
 586     {
 587         OIC_LOG_V(DEBUG, TAG, "error callback error: %d", td->errorInfo->result);
 588         g_errorHandler(rep, td->errorInfo);
 589     }
 590
 591     CADataDestroyer(msg, sizeof(CAData_t));
 592
 593 #endif
 594     OIC_LOG(DEBUG, TAG, "CAHandleRequestResponseCallbacks OUT");
 595 }
 596
 597 CAResult_t CADetachRequestMessage(const CARemoteEndpoint_t *object, const CARequestInfo_t *request)
 598 {
 599     OIC_LOG(DEBUG, TAG, "IN");
 600
 601     VERIFY_NON_NULL(object, TAG, "object");
 602     VERIFY_NON_NULL(request, TAG, "request");
 603
 604     if (false == CAIsSelectedNetworkAvailable())
 605     {
 606         return CA_STATUS_FAILED;
 607     }
 608
 609     CARemoteEndpoint_t *remoteEndpoint = NULL;
 610     CARequestInfo_t *requestInfo = NULL;
 611     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 612     CA_MEMORY_ALLOC_CHECK(data);
 613
 614     // clone remote endpoint
 615     remoteEndpoint = CACloneRemoteEndpoint(object);
 616     CA_MEMORY_ALLOC_CHECK(remoteEndpoint);
 617
 618     // clone request info
 619     requestInfo = CACloneRequestInfo(request);
 620     CA_MEMORY_ALLOC_CHECK(requestInfo);
 621
 622     // save data
 623     data->type = SEND_TYPE_UNICAST;
 624     data->remoteEndpoint = remoteEndpoint;
 625     data->requestInfo = requestInfo;
 626     data->responseInfo = NULL;
 627
 628     // add thread
 629     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 630     OIC_LOG(DEBUG, TAG, "OUT");
 631     return CA_STATUS_OK;
 632
 633 // memory error label.
 634 memory_error_exit:
 635     CADestroyRemoteEndpointInternal(remoteEndpoint);
 636     CADestroyRequestInfoInternal(requestInfo);
 637
 638     OICFree(data);
 639     OIC_LOG(DEBUG, TAG, "OUT");
 640     return CA_MEMORY_ALLOC_FAILED;
 641 }
 642
 643 CAResult_t CADetachRequestToAllMessage(const CAGroupEndpoint_t *object,
 644                                        const CARequestInfo_t *request)
 645 {
 646     OIC_LOG(DEBUG, TAG, "IN");
 647
 648     if (NULL == object || NULL == request || NULL == object->resourceUri)
 649     {
 650         return CA_STATUS_INVALID_PARAM;
 651     }
 652
 653     if ((request->method < CA_GET) || (request->method > CA_DELETE))
 654     {
 655         OIC_LOG(ERROR, TAG, "Invalid method type!");
 656
 657         return CA_STATUS_INVALID_PARAM;
 658     }
 659
 660     if (false == CAIsSelectedNetworkAvailable())
 661     {
 662         return CA_STATUS_FAILED;
 663     }
 664
 665     CARemoteEndpoint_t *remoteEndpoint = NULL;
 666     CARequestInfo_t *requestInfo = NULL;
 667
 668     // allocate & initialize
 669     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 670     CA_MEMORY_ALLOC_CHECK(data);
 671
 672     CAAddress_t addr = {};
 673     remoteEndpoint = CACreateRemoteEndpointInternal(object->resourceUri, addr,
 674                                                     object->transportType);
 675
 676     // clone request info
 677     requestInfo = CACloneRequestInfo(request);
 678     CA_MEMORY_ALLOC_CHECK(requestInfo);
 679
 680     // save data
 681     data->type = SEND_TYPE_MULTICAST;
 682     data->remoteEndpoint = remoteEndpoint;
 683     data->requestInfo = requestInfo;
 684     data->responseInfo = NULL;
 685
 686     // add thread
 687     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 688
 689     OIC_LOG(DEBUG, TAG, "OUT");
 690     return CA_STATUS_OK;
 691
 692 // memory error label.
 693 memory_error_exit:
 694
 695     CADestroyRequestInfoInternal(requestInfo);
 696     CADestroyRemoteEndpointInternal(remoteEndpoint);
 697     OICFree(data);
 698     OIC_LOG(DEBUG, TAG, "OUT");
 699     return CA_MEMORY_ALLOC_FAILED;
 700 }
 701
 702 CAResult_t CADetachResponseMessage(const CARemoteEndpoint_t *object,
 703                                    const CAResponseInfo_t *response)
 704 {
 705     OIC_LOG(DEBUG, TAG, "IN");
 706     VERIFY_NON_NULL(object, TAG, "object");
 707     VERIFY_NON_NULL(response, TAG, "response");
 708
 709     if (false == CAIsSelectedNetworkAvailable())
 710     {
 711         return CA_STATUS_FAILED;
 712     }
 713
 714     CARemoteEndpoint_t *remoteEndpoint = NULL;
 715     CAResponseInfo_t *responseInfo = NULL;
 716
 717     // allocate & initialize
 718     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 719     CA_MEMORY_ALLOC_CHECK(data);
 720
 721     // clone remote endpoint
 722     remoteEndpoint = CACloneRemoteEndpoint(object);
 723     CA_MEMORY_ALLOC_CHECK(remoteEndpoint);
 724
 725     // clone response info
 726     responseInfo = CACloneResponseInfo(response);
 727     CA_MEMORY_ALLOC_CHECK(responseInfo);
 728
 729     // save data
 730     data->type = SEND_TYPE_UNICAST;
 731     data->remoteEndpoint = remoteEndpoint;
 732     data->requestInfo = NULL;
 733     data->responseInfo = responseInfo;
 734
 735     // add thread
 736     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 737
 738     OIC_LOG(DEBUG, TAG, "OUT");
 739     return CA_STATUS_OK;
 740
 741 // memory error label.
 742 memory_error_exit:
 743     CADestroyRemoteEndpointInternal(remoteEndpoint);
 744     CADestroyResponseInfoInternal(responseInfo);
 745     OICFree(data);
 746     OIC_LOG(DEBUG, TAG, "OUT");
 747
 748     return CA_MEMORY_ALLOC_FAILED;
 749 }
 750
 751 CAResult_t CADetachMessageResourceUri(const CAURI_t resourceUri, const CAToken_t token,
 752                                       uint8_t tokenLength, const CAHeaderOption_t *options,
 753                                       uint8_t numOptions)
 754 {
 755     OIC_LOG(DEBUG, TAG, "IN");
 756     VERIFY_NON_NULL(resourceUri, TAG, "resourceUri is NULL");
 757     VERIFY_NON_NULL(token, TAG, "Token is NULL");
 758
 759     if (false == CAIsSelectedNetworkAvailable())
 760     {
 761         return CA_STATUS_FAILED;
 762     }
 763
 764     CARemoteEndpoint_t *remoteEndpoint = NULL;
 765     CARequestInfo_t *reqInfo = NULL;
 766     char *tempToken = NULL;
 767
 768     // allocate & initialize
 769     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 770     CA_MEMORY_ALLOC_CHECK(data);
 771
 772     CAAddress_t addr = {};
 773     remoteEndpoint = CACreateRemoteEndpointInternal(resourceUri, addr,
 774                                                     CA_IPV4 | CA_EDR | CA_LE);
 775
 776     // create request info
 777     reqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 778     CA_MEMORY_ALLOC_CHECK(reqInfo);
 779
 780     if (tokenLength)
 781     {
 782         // copy token value
 783         tempToken = (char *) OICMalloc(tokenLength);
 784         CA_MEMORY_ALLOC_CHECK(tempToken);
 785         memcpy(tempToken, token, tokenLength);
 786     }
 787
 788     // save request info data
 789     reqInfo->method = CA_GET;
 790     reqInfo->info.type = CA_MSG_NONCONFIRM;
 791
 792     reqInfo->info.token = tempToken;
 793     reqInfo->info.tokenLength = tokenLength;
 794
 795     // save data
 796     data->type = SEND_TYPE_MULTICAST;
 797     data->remoteEndpoint = remoteEndpoint;
 798     data->requestInfo = reqInfo;
 799
 800     data->responseInfo = NULL;
 801     data->options = NULL;
 802     data->numOptions = 0;
 803     if (NULL != options && 0 < numOptions)
 804     {
 805         // copy data
 806         CAHeaderOption_t *headerOption = (CAHeaderOption_t *) OICMalloc(sizeof(CAHeaderOption_t)
 807                                                                         * numOptions);
 808         CA_MEMORY_ALLOC_CHECK(headerOption);
 809
 810         memcpy(headerOption, options, sizeof(CAHeaderOption_t) * numOptions);
 811
 812         data->options = headerOption;
 813         data->numOptions = numOptions;
 814     }
 815
 816     // add thread
 817     CAQueueingThreadAddData(&g_sendThread, data, sizeof(CAData_t));
 818
 819     OIC_LOG(DEBUG, TAG, "OUT");
 820     return CA_STATUS_OK;
 821
 822 // memory error label.
 823 memory_error_exit:
 824
 825     CADestroyRemoteEndpointInternal(remoteEndpoint);
 826
 827     OICFree(tempToken);
 828     OICFree(reqInfo);
 829     OICFree(data);
 830     OIC_LOG(DEBUG, TAG, "OUT");
 831     return CA_MEMORY_ALLOC_FAILED;
 832 }
 833
 834 void CASetInterfaceCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
 835                              CAErrorCallback errroHandler)
 836 {
 837     OIC_LOG(DEBUG, TAG, "IN");
 838     g_requestHandler = ReqHandler;
 839     g_responseHandler = RespHandler;
 840     g_errorHandler = errroHandler;
 841     OIC_LOG(DEBUG, TAG, "OUT");
 842 }
 843
 844 CAResult_t CAInitializeMessageHandler()
 845 {
 846     OIC_LOG(DEBUG, TAG, "IN");
 847     CASetPacketReceivedCallback(CAReceivedPacketCallback);
 848
 849     CASetNetworkChangeCallback(CANetworkChangedCallback);
 850     CASetErrorHandleCallback(CAErrorHandler);
 851
 852     // create thread pool
 853     CAResult_t res = ca_thread_pool_init(MAX_THREAD_POOL_SIZE, &g_threadPoolHandle);
 854
 855     if (res != CA_STATUS_OK)
 856     {
 857         OIC_LOG(ERROR, TAG, "thread pool initialize error.");
 858         return res;
 859     }
 860
 861     // send thread initialize
 862     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_sendThread, g_threadPoolHandle,
 863                                                    CASendThreadProcess, CADataDestroyer))
 864     {
 865         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
 866         return CA_STATUS_FAILED;
 867     }
 868
 869     // start send thread
 870     res = CAQueueingThreadStart(&g_sendThread);
 871
 872     if (res != CA_STATUS_OK)
 873     {
 874         OIC_LOG(ERROR, TAG, "thread start error(send thread).");
 875         ca_thread_pool_free(g_threadPoolHandle);
 876         g_threadPoolHandle = NULL;
 877         return res;
 878     }
 879
 880     // receive thread initialize
 881     if (CA_STATUS_OK != CAQueueingThreadInitialize(&g_receiveThread, g_threadPoolHandle,
 882                                                    CAReceiveThreadProcess, CADataDestroyer))
 883     {
 884         OIC_LOG(ERROR, TAG, "Failed to Initialize receive queue thread");
 885         return CA_STATUS_FAILED;
 886     }
 887
 888 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
 889     // start receive thread
 890     res = CAQueueingThreadStart(&gReceiveThread);
 891
 892     if (res != CA_STATUS_OK)
 893     {
 894         OIC_LOG(ERROR, TAG, "thread start error(receive thread).");
 895         return res;
 896     }
 897 #endif
 898
 899     // retransmission initialize
 900     CARetransmissionInitialize(&g_retransmissionContext, g_threadPoolHandle, CASendUnicastData,
 901                                CATimeoutCallback, NULL);
 902
 903     // start retransmission
 904     res = CARetransmissionStart(&g_retransmissionContext);
 905
 906     if (res != CA_STATUS_OK)
 907     {
 908         OIC_LOG(ERROR, TAG, "thread start error(retransmission thread).");
 909         return res;
 910     }
 911
 912     // initialize interface adapters by controller
 913     CAInitializeAdapters(g_threadPoolHandle);
 914     OIC_LOG(DEBUG, TAG, "OUT");
 915     return CA_STATUS_OK;
 916 }
 917
 918 void CATerminateMessageHandler()
 919 {
 920     OIC_LOG(DEBUG, TAG, "IN");
 921     CATransportType_t connType;
 922     u_arraylist_t *list = CAGetSelectedNetworkList();
 923     uint32_t length = u_arraylist_length(list);
 924
 925     uint32_t i = 0;
 926     for (i = 0; i < length; i++)
 927     {
 928         void* ptrType = u_arraylist_get(list, i);
 929
 930         if (NULL == ptrType)
 931         {
 932             continue;
 933         }
 934
 935         connType = *(CATransportType_t *) ptrType;
 936         CAStopAdapter(connType);
 937     }
 938
 939     // stop retransmission
 940     if (NULL != g_retransmissionContext.threadMutex)
 941     {
 942         CARetransmissionStop(&g_retransmissionContext);
 943     }
 944
 945     // stop thread
 946     // delete thread data
 947     if (NULL != g_sendThread.threadMutex)
 948     {
 949         CAQueueingThreadStop(&g_sendThread);
 950     }
 951
 952     // stop thread
 953     // delete thread data
 954     if (NULL != g_receiveThread.threadMutex)
 955     {
 956 #ifndef SINGLE_HANDLE // This will be enabled when RI supports multi threading
 957         CAQueueingThreadStop(&gReceiveThread);
 958 #endif
 959     }
 960
 961     // destroy thread pool
 962     if (NULL != g_threadPoolHandle)
 963     {
 964         ca_thread_pool_free(g_threadPoolHandle);
 965         g_threadPoolHandle = NULL;
 966     }
 967
 968     CARetransmissionDestroy(&g_retransmissionContext);
 969     CAQueueingThreadDestroy(&g_sendThread);
 970     CAQueueingThreadDestroy(&g_receiveThread);
 971
 972     // terminate interface adapters by controller
 973     CATerminateAdapters();
 974
 975     OIC_LOG(DEBUG, TAG, "OUT");
 976 }
 977
 978 void CALogPDUInfo(coap_pdu_t *pdu)
 979 {
 980     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 981
 982     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
 983
 984     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->hdr->type);
 985
 986     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->hdr->code);
 987
 988     OIC_LOG_V(DEBUG, TAG, "PDU Maker - id : %d", ntohs(pdu->hdr->id));
 989
 990     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
 991
 992     OIC_LOG_BUFFER(DEBUG, TAG, pdu->hdr->token, pdu->hdr->token_length);
 993 }
 994
 995 void CAErrorHandler(const CARemoteEndpoint_t *remoteEndpoint, const void *data,
 996                     uint32_t dataLen, CAResult_t result)
 997 {
 998     OIC_LOG(DEBUG, TAG, "IN");
 999     VERIFY_NON_NULL_VOID(remoteEndpoint, TAG, "remoteEndpoint");
1000     VERIFY_NON_NULL_VOID(data, TAG, "data");
1001
1002     uint32_t code = CA_NOT_FOUND;
1003     //Do not free remoteEndpoint and data. Currently they will be freed in data thread
1004     //Get PDU data
1005     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code);
1006     if (NULL == pdu)
1007     {
1008         OIC_LOG(ERROR, TAG, "Parse PDU failed");
1009         return;
1010     }
1011
1012     char uri[CA_MAX_URI_LENGTH] = { 0, };
1013
1014     CAErrorInfo_t *errorInfo = (CAErrorInfo_t *) OICCalloc(1, sizeof(CAErrorInfo_t));
1015     if (NULL == errorInfo)
1016     {
1017         OIC_LOG(ERROR, TAG, "CAErrorHandler, Memory allocation failed!");
1018         coap_delete_pdu(pdu);
1019         return;
1020     }
1021
1022     CAResult_t res = CAGetErrorInfoFromPDU(pdu, errorInfo, uri, CA_MAX_URI_LENGTH);
1023     if (CA_STATUS_OK != res)
1024     {
1025         OIC_LOG_V(ERROR, TAG, "CAGetErrorInfoFromPDU failed : %d", res);
1026         OICFree(errorInfo);
1027         coap_delete_pdu(pdu);
1028        return;
1029     }
1030
1031     errorInfo->result = result;
1032     OIC_LOG_V(DEBUG, TAG, "error : %d", result);
1033     if (NULL != errorInfo->info.payload)
1034     {
1035         OIC_LOG_V(DEBUG, TAG, "error, payload: %s", errorInfo->info.payload);
1036     }
1037
1038     OIC_LOG(DEBUG, TAG, "error, token");
1039     OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) errorInfo->info.token,
1040                    errorInfo->info.tokenLength);
1041     OIC_LOG_V(DEBUG, TAG, "CAErrorHandler, msgID : %d", errorInfo->info.messageId);
1042
1043     CARemoteEndpoint_t *rep = NULL;
1044     rep = CACloneRemoteEndpoint(remoteEndpoint);
1045     if(!rep)
1046     {
1047         OIC_LOG(ERROR, TAG, "CAErrorHandler, CloneRemoteEndpoint Failed");
1048         OICFree(errorInfo);
1049         coap_delete_pdu(pdu);
1050         return;
1051     }
1052
1053     if(NULL == rep->resourceUri)
1054     {
1055         CAURI_t resourceUri = OICStrdup(uri);
1056         if (NULL == resourceUri)
1057         {
1058             OIC_LOG(ERROR, TAG, "CAErrorHandler, Memory allocation failed!");
1059             OICFree(errorInfo);
1060             coap_delete_pdu(pdu);
1061             return;
1062         }
1063
1064         OIC_LOG_V(DEBUG, TAG, "URI : %s", resourceUri);
1065         rep->resourceUri = resourceUri;
1066     }
1067
1068     // store the data at queue.
1069     CAData_t *cadata = NULL;
1070     cadata = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
1071     if (NULL == cadata)
1072     {
1073         OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
1074         CADestroyRemoteEndpointInternal(rep);
1075         OICFree(errorInfo);
1076         coap_delete_pdu(pdu);
1077         return;
1078     }
1079
1080     cadata->remoteEndpoint = rep;
1081     cadata->requestInfo = NULL;
1082     cadata->responseInfo = NULL;
1083     cadata->errorInfo = errorInfo;
1084     cadata->dataType = CA_ERROR_DATA;
1085     CAQueueingThreadAddData(&g_receiveThread, cadata, sizeof(CAData_t));
1086     coap_delete_pdu(pdu);
1087
1088     return;
1089 }
1090