resource/csdk/connectivity/src/camessagehandler_singlethread.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_singlethread.h"
  28 #include "caremotehandler.h"
  29 #include "cainterfacecontroller_singlethread.h"
  30 #include "caprotocolmessage.h"
  31 #include "caretransmission_singlethread.h"
  32 #include "logger.h"
  33 #include "config.h" /* for coap protocol */
  34 #include "oic_malloc.h"
  35
  36 #define TAG "CAMH_ST"
  37
  38 #define CA_MAX_RT_ARRAY_SIZE    3
  39
  40 typedef enum
  41 {
  42     SEND_TYPE_MULTICAST = 0, SEND_TYPE_UNICAST
  43 } CASendDataType_t;
  44
  45 typedef struct
  46 {
  47     CASendDataType_t type;
  48     CARemoteEndpoint_t *remoteEndpoint;
  49     CARequestInfo_t *requestInfo;
  50     CAResponseInfo_t *responseInfo;
  51     CAHeaderOption_t *options;
  52     uint8_t numOptions;
  53 } CAData_t;
  54
  55
  56 static CARetransmission_t g_retransmissionContext;
  57
  58 // handler field
  59 static CARequestCallback g_requestHandler = NULL;
  60 static CAResponseCallback g_responseHandler = NULL;
  61
  62 static void CATimeoutCallback(const CARemoteEndpoint_t *endpoint, const void *pdu, uint32_t size)
  63 {
  64     OIC_LOG(DEBUG, TAG, "IN");
  65     CARemoteEndpoint_t* ep = CACloneRemoteEndpoint(endpoint);
  66     if (NULL == ep)
  67     {
  68         OIC_LOG(ERROR, TAG, "clone failed");
  69         return;
  70     }
  71
  72     CAResponseInfo_t* resInfo = (CAResponseInfo_t*) OICCalloc(1, sizeof(CAResponseInfo_t));
  73
  74     if (NULL == resInfo)
  75     {
  76         OIC_LOG(ERROR, TAG, "calloc failed");
  77         CADestroyRemoteEndpointInternal(ep);
  78         return;
  79     }
  80
  81     resInfo->result = CA_RETRANSMIT_TIMEOUT;
  82     resInfo->info.type = CAGetMessageTypeFromPduBinaryData(pdu, size);
  83     resInfo->info.messageId = CAGetMessageIdFromPduBinaryData(pdu, size);
  84
  85     if (g_responseHandler)
  86     {
  87         g_responseHandler(ep, resInfo);
  88     }
  89
  90     CADestroyRemoteEndpointInternal(ep);
  91     OICFree(resInfo);
  92
  93     OIC_LOG(DEBUG, TAG, "OUT");
  94 }
  95 static void CAProcessData(const CAData_t *data)
  96 {
  97     OIC_LOG(DEBUG, TAG, "IN");
  98     VERIFY_NON_NULL_VOID(data, TAG, "data");
  99     VERIFY_NON_NULL_VOID(data->remoteEndpoint, TAG, "remoteEndpoint");
 100
 101     CAResult_t res = CA_STATUS_FAILED;
 102
 103     CASendDataType_t type = data->type;
 104
 105     if (SEND_TYPE_UNICAST == type)
 106     {
 107         coap_pdu_t *pdu = NULL;
 108
 109         if (NULL != data->requestInfo)
 110         {
 111             OIC_LOG(DEBUG, TAG, "reqInfo avlbl");
 112
 113             pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri,
 114                                                data->requestInfo->method,
 115                                                data->requestInfo->info);
 116         }
 117         else if (NULL != data->responseInfo)
 118         {
 119             OIC_LOG(DEBUG, TAG, "resInfo avlbl");
 120
 121             pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri,
 122                                                data->responseInfo->result,
 123                                                data->responseInfo->info);
 124         }
 125         else
 126         {
 127             OIC_LOG(DEBUG, TAG, "request info, response info is empty");
 128         }
 129
 130         // interface controller function call.
 131         if (NULL != pdu)
 132         {
 133             CALogPDUInfo(pdu);
 134
 135             res = CASendUnicastData(data->remoteEndpoint, pdu->hdr, pdu->length);
 136             if (CA_STATUS_OK != res)
 137             {
 138                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 139                 coap_delete_pdu(pdu);
 140                 return;
 141             }
 142             // for retransmission
 143             res = CARetransmissionSentData(&g_retransmissionContext, data->remoteEndpoint, pdu->hdr,
 144                                            pdu->length);
 145             if (CA_STATUS_OK != res)
 146             {
 147                 OIC_LOG_V(INFO, TAG, "retransmissions will not be working: %d", res);
 148                 coap_delete_pdu(pdu);
 149                 return;
 150             }
 151
 152             coap_delete_pdu(pdu);
 153         }
 154     }
 155     else if (SEND_TYPE_MULTICAST == type)
 156     {
 157         OIC_LOG(DEBUG, TAG, "both requestInfo & responseInfo is not available");
 158
 159         CAInfo_t info = { 0 };
 160
 161         info.options = data->options;
 162         info.numOptions = data->numOptions;
 163         info.token = data->requestInfo->info.token;
 164         info.tokenLength = data->requestInfo->info.tokenLength;
 165         info.type = data->requestInfo->info.type;
 166         info.messageId = data->requestInfo->info.messageId;
 167         info.payload = data->requestInfo->info.payload;
 168
 169         coap_pdu_t *pdu = (coap_pdu_t *) CAGeneratePDU(data->remoteEndpoint->resourceUri, CA_GET,
 170                                                        info);
 171
 172         if (NULL != pdu)
 173         {
 174             CALogPDUInfo(pdu);
 175             res = CASendMulticastData(pdu->hdr, pdu->length);
 176             if(CA_STATUS_OK != res)
 177             {
 178                 OIC_LOG_V(ERROR, TAG, "send failed:%d", res);
 179                 coap_delete_pdu(pdu);
 180                 return;
 181             }
 182             coap_delete_pdu(pdu);
 183         }
 184     }
 185
 186     OIC_LOG(DEBUG, TAG, "OUT");
 187 }
 188
 189 static void CAReceivedPacketCallback(CARemoteEndpoint_t *endpoint, void *data, uint32_t dataLen)
 190 {
 191     OIC_LOG(DEBUG, TAG, "IN");
 192     VERIFY_NON_NULL_VOID(data, TAG, "data");
 193
 194     uint32_t code = CA_NOT_FOUND;
 195     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code);
 196
 197     if (NULL == pdu)
 198     {
 199         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 200         return;
 201     }
 202
 203     char uri[CA_MAX_URI_LENGTH] = { 0, };
 204     uint32_t bufLen = sizeof(uri);
 205
 206     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 207     {
 208         CARequestInfo_t *ReqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 209         if (NULL == ReqInfo)
 210         {
 211             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 212             coap_delete_pdu(pdu);
 213             return;
 214         }
 215
 216         CAResult_t res = CAGetRequestInfoFromPDU(pdu, ReqInfo, uri, bufLen);
 217         if (CA_STATUS_OK != res)
 218         {
 219             OIC_LOG_V(ERROR, TAG, "CAGetRequestInfoFromPDU failed : %d", res);
 220             OICFree(ReqInfo);
 221             coap_delete_pdu(pdu);
 222             return;
 223         }
 224
 225         if (NULL != ReqInfo->info.options)
 226         {
 227             for (uint32_t i = 0; i < ReqInfo->info.numOptions; i++)
 228             {
 229                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", ReqInfo->info.options[i].optionID);
 230
 231                 OIC_LOG_V(DEBUG, TAG, "list: %s", ReqInfo->info.options[i].optionData);
 232             }
 233         }
 234
 235         if (NULL != ReqInfo->info.payload)
 236         {
 237             OIC_LOG_V(DEBUG, TAG, "Request- payload: %s", ReqInfo->info.payload);
 238         }
 239
 240         OIC_LOG_V(DEBUG, TAG, "code: %d", ReqInfo->method);
 241         OIC_LOG(DEBUG, TAG, "token:");
 242         OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) ReqInfo->info.token, CA_MAX_TOKEN_LEN);
 243         if (NULL != endpoint)
 244         {
 245             endpoint->resourceUri = (char *) OICMalloc(bufLen + 1);
 246             if (NULL == endpoint->resourceUri)
 247             {
 248                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 249                 OICFree(ReqInfo);
 250                 coap_delete_pdu(pdu);
 251                 return;
 252             }
 253             memcpy(endpoint->resourceUri, uri, bufLen);
 254             endpoint->resourceUri[bufLen] = '\0';
 255             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 256         }
 257
 258         if (ReqInfo)
 259         {
 260             if (g_requestHandler)
 261             {
 262                 g_requestHandler(endpoint, ReqInfo);
 263             }
 264
 265             CADestroyRequestInfoInternal(ReqInfo);
 266         }
 267     }
 268     else
 269     {
 270         CAResponseInfo_t *ResInfo = (CAResponseInfo_t *) OICCalloc(1, sizeof(CAResponseInfo_t));
 271         if (NULL == ResInfo)
 272         {
 273             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 274             coap_delete_pdu(pdu);
 275             return;
 276         }
 277
 278         CAResult_t res = CAGetResponseInfoFromPDU(pdu, ResInfo, uri, bufLen);
 279         if (CA_STATUS_OK != res)
 280         {
 281             OIC_LOG_V(ERROR, TAG, "CAGetResponseInfoFromPDU failed : %d", res);
 282             OICFree(ResInfo);
 283             coap_delete_pdu(pdu);
 284             return;
 285         }
 286
 287         if (NULL != ResInfo->info.options)
 288         {
 289             for (uint32_t i = 0; i < ResInfo->info.numOptions; i++)
 290             {
 291                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", ResInfo->info.options[i].optionID);
 292
 293                 OIC_LOG_V(DEBUG, TAG, "list: %s", ResInfo->info.options[i].optionData);
 294             }
 295         }
 296
 297         if (NULL != ResInfo->info.payload)
 298         {
 299             OIC_LOG_V(DEBUG, TAG, "payload: %s", ResInfo->info.payload);
 300         }
 301         OIC_LOG_V(DEBUG, TAG, "code: %d", ResInfo->result);
 302
 303         if (NULL != endpoint)
 304         {
 305             endpoint->resourceUri = (char *) OICMalloc(bufLen + 1);
 306             if (NULL == endpoint->resourceUri)
 307             {
 308                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
 309                 OICFree(ResInfo);
 310                 coap_delete_pdu(pdu);
 311                 return;
 312             }
 313             memcpy(endpoint->resourceUri, uri, bufLen);
 314             endpoint->resourceUri[bufLen] = '\0';
 315             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 316         }
 317
 318         // for retransmission
 319         void *retransmissionPdu = NULL;
 320         CARetransmissionReceivedData(&g_retransmissionContext, endpoint, pdu->hdr, pdu->length,
 321                                      &retransmissionPdu);
 322
 323         // get token from saved data in retransmission list
 324         if (retransmissionPdu && CA_EMPTY == code)
 325         {
 326             CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *)retransmissionPdu,
 327                                                &(ResInfo->info));
 328             if(res != CA_STATUS_OK)
 329             {
 330                 OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 331                 OICFree(ResInfo->info.token);
 332             }
 333         }
 334         OICFree(retransmissionPdu);
 335
 336         if (NULL != ResInfo)
 337         {
 338             if (g_responseHandler)
 339             {
 340                 g_responseHandler(endpoint, ResInfo);
 341             }
 342             CADestroyResponseInfoInternal(ResInfo);
 343         }
 344     }
 345
 346     if (endpoint && endpoint->resourceUri)
 347     {
 348         OICFree(endpoint->resourceUri);
 349         endpoint->resourceUri = NULL;
 350     }
 351     if (pdu)
 352     {
 353         coap_delete_pdu(pdu);
 354     }
 355     OIC_LOG(DEBUG, TAG, "OUT");
 356 }
 357
 358 static void CANetworkChangedCallback(CALocalConnectivity_t *info, CANetworkStatus_t status)
 359 {
 360     OIC_LOG(DEBUG, TAG, "IN");
 361
 362     OIC_LOG(DEBUG, TAG, "OUT");
 363 }
 364
 365 void CAHandleRequestResponseCallbacks()
 366 {
 367     CAReadData();
 368     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 369 }
 370
 371 CAResult_t CADetachRequestMessage(const CARemoteEndpoint_t *object, const CARequestInfo_t *request)
 372 {
 373     OIC_LOG(DEBUG, TAG, "IN");
 374
 375     VERIFY_NON_NULL(object, TAG, "object");
 376     VERIFY_NON_NULL(request, TAG, "request");
 377
 378     // If max retransmission queue is reached, then don't handle new request
 379     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 380     {
 381         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 382         return CA_SEND_FAILED;
 383     }
 384
 385     // allocate & initialize
 386     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 387     CA_MEMORY_ALLOC_CHECK(data);
 388
 389     // save data
 390     data->type = SEND_TYPE_UNICAST;
 391     data->remoteEndpoint = object;
 392     data->requestInfo = request;
 393     data->responseInfo = NULL;
 394
 395     CAProcessData(data);
 396     OICFree(data);
 397     OIC_LOG(DEBUG, TAG, "OUT");
 398     return CA_STATUS_OK;
 399
 400 // memory error label.
 401 memory_error_exit:
 402     OICFree(data);
 403     OIC_LOG(DEBUG, TAG, "OUT");
 404     return CA_MEMORY_ALLOC_FAILED;
 405 }
 406
 407 CAResult_t CADetachRequestToAllMessage(const CAGroupEndpoint_t *object,
 408                                        const CARequestInfo_t *request)
 409 {
 410     OIC_LOG(DEBUG, TAG, "IN");
 411
 412     if (NULL == object || NULL == request || NULL == object->resourceUri)
 413     {
 414         return CA_STATUS_INVALID_PARAM;
 415     }
 416
 417     if ((request->method < CA_GET) || (request->method > CA_DELETE))
 418     {
 419         OIC_LOG(ERROR, TAG, "Invalid method type!");
 420
 421         return CA_STATUS_INVALID_PARAM;
 422     }
 423
 424     // allocate & initialize
 425     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 426     CA_MEMORY_ALLOC_CHECK(data);
 427
 428     CAAddress_t addr = {0};
 429     CARemoteEndpoint_t *remoteEndpoint = CACreateRemoteEndpointInternal(object->resourceUri, addr,
 430                                                                         object->connectivityType);
 431
 432     // save data
 433     data->type = SEND_TYPE_MULTICAST;
 434     data->remoteEndpoint = remoteEndpoint;
 435     data->requestInfo = request;
 436     data->responseInfo = NULL;
 437
 438     CAProcessData(data);
 439     CADestroyRemoteEndpointInternal(remoteEndpoint);
 440
 441     OICFree(data);
 442     OIC_LOG(DEBUG, TAG, "OUT");
 443     return CA_STATUS_OK;
 444
 445 // memory error label.
 446 memory_error_exit:
 447
 448     OICFree(data);
 449     OIC_LOG(DEBUG, TAG, "OUT");
 450     return CA_MEMORY_ALLOC_FAILED;
 451 }
 452
 453 CAResult_t CADetachResponseMessage(const CARemoteEndpoint_t *object,
 454                                    const CAResponseInfo_t *response)
 455 {
 456     OIC_LOG(DEBUG, TAG, "IN");
 457     VERIFY_NON_NULL(object, TAG, "object");
 458     VERIFY_NON_NULL(response, TAG, "response");
 459
 460     // allocate & initialize
 461     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 462     CA_MEMORY_ALLOC_CHECK(data);
 463
 464     // save data
 465     data->type = SEND_TYPE_UNICAST;
 466     data->remoteEndpoint = object;
 467     data->requestInfo = NULL;
 468     data->responseInfo = response;
 469
 470     CAProcessData(data);
 471
 472     OICFree(data);
 473     OIC_LOG(DEBUG, TAG, "OUT");
 474     return CA_STATUS_OK;
 475
 476 // memory error label.
 477 memory_error_exit:
 478     OICFree(data);
 479     OIC_LOG(DEBUG, TAG, "OUT");
 480
 481     return CA_MEMORY_ALLOC_FAILED;
 482 }
 483
 484 CAResult_t CADetachMessageResourceUri(const CAURI_t resourceUri, const CAToken_t token,
 485                                       uint8_t tokenLength, const CAHeaderOption_t *options,
 486                                       uint8_t numOptions)
 487 {
 488     OIC_LOG(DEBUG, TAG, "IN");
 489     VERIFY_NON_NULL(resourceUri, TAG, "resourceUri is NULL");
 490     VERIFY_NON_NULL(token, TAG, "Token is NULL");
 491
 492     // allocate & initialize
 493     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 494     CA_MEMORY_ALLOC_CHECK(data);
 495
 496     CAAddress_t addr = {0};
 497     CARemoteEndpoint_t *remoteEndpoint =
 498             CACreateRemoteEndpointInternal(resourceUri, addr,
 499                                            CA_ETHERNET | CA_WIFI | CA_EDR | CA_LE);
 500
 501     // create request info
 502     CARequestInfo_t *reqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 503     CA_MEMORY_ALLOC_CHECK(reqInfo);
 504
 505     // save request info data
 506     reqInfo->method = CA_GET;
 507     reqInfo->info.type = CA_MSG_NONCONFIRM;
 508
 509     reqInfo->info.token = token;
 510     reqInfo->info.tokenLength = tokenLength;
 511
 512     // save data
 513     data->type = SEND_TYPE_MULTICAST;
 514     data->remoteEndpoint = remoteEndpoint;
 515     data->requestInfo = reqInfo;
 516
 517     data->responseInfo = NULL;
 518     data->options = NULL;
 519     data->numOptions = 0;
 520     CAHeaderOption_t *headerOption = NULL;
 521     if (NULL != options && numOptions > 0)
 522     {
 523         // copy data
 524         headerOption = (CAHeaderOption_t *) OICMalloc(sizeof(CAHeaderOption_t) * numOptions);
 525         CA_MEMORY_ALLOC_CHECK(headerOption);
 526         memcpy(headerOption, options, sizeof(CAHeaderOption_t) * numOptions);
 527
 528         data->options = headerOption;
 529         data->numOptions = numOptions;
 530     }
 531
 532     CAProcessData(data);
 533
 534     CADestroyRemoteEndpoint(remoteEndpoint);
 535     OICFree(headerOption);
 536     OICFree(data);
 537     OICFree(reqInfo);
 538     OIC_LOG(DEBUG, TAG, "OUT");
 539     return CA_STATUS_OK;
 540
 541 // memory error label.
 542 memory_error_exit:
 543
 544     CADestroyRemoteEndpointInternal(remoteEndpoint);
 545
 546     OICFree(reqInfo);
 547     OICFree(data);
 548     OIC_LOG(DEBUG, TAG, "OUT");
 549     return CA_MEMORY_ALLOC_FAILED;
 550 }
 551
 552 void CASetRequestResponseCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler)
 553 {
 554     OIC_LOG(DEBUG, TAG, "IN");
 555     g_requestHandler = ReqHandler;
 556     g_responseHandler = RespHandler;
 557     OIC_LOG(DEBUG, TAG, "OUT");
 558 }
 559
 560 CAResult_t CAInitializeMessageHandler()
 561 {
 562     OIC_LOG(DEBUG, TAG, "IN");
 563     CASetPacketReceivedCallback(CAReceivedPacketCallback);
 564
 565     CASetNetworkChangeCallback(CANetworkChangedCallback);
 566
 567     // retransmission initialize
 568     CARetransmissionInitialize(&g_retransmissionContext, CASendUnicastData,
 569                                CATimeoutCallback, NULL);
 570
 571     CAInitializeAdapters();
 572     OIC_LOG(DEBUG, TAG, "OUT");
 573     return CA_STATUS_OK;
 574 }
 575
 576 void CATerminateMessageHandler()
 577 {
 578     OIC_LOG(DEBUG, TAG, "IN");
 579     // terminate interface adapters by controller
 580     CATerminateAdapters();
 581
 582     // stop retransmission
 583     CARetransmissionStop(&g_retransmissionContext);
 584     CARetransmissionDestroy(&g_retransmissionContext);
 585
 586     OIC_LOG(DEBUG, TAG, "OUT");
 587 }
 588
 589 void CALogPDUInfo(coap_pdu_t *pdu)
 590 {
 591     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 592
 593     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
 594
 595     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->hdr->type);
 596
 597     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->hdr->code);
 598
 599     OIC_LOG_V(DEBUG, TAG, "PDU Maker - id : %d", ntohs(pdu->hdr->id));
 600
 601     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
 602
 603     OIC_LOG_BUFFER(DEBUG, TAG, pdu->hdr->token, pdu->hdr->token_length);
 604 }
 605