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
 183             coap_delete_pdu(pdu);
 184         }
 185     }
 186
 187     OIC_LOG(DEBUG, TAG, "OUT");
 188 }
 189
 190 static void CAReceivedPacketCallback(CARemoteEndpoint_t *endpoint, void *data, uint32_t dataLen)
 191 {
 192     OIC_LOG(DEBUG, TAG, "IN");
 193     VERIFY_NON_NULL_VOID(data, TAG, "data");
 194
 195     uint32_t code = CA_NOT_FOUND;
 196     coap_pdu_t *pdu = (coap_pdu_t *) CAParsePDU((const char *) data, dataLen, &code);
 197
 198     if (NULL == pdu)
 199     {
 200         OIC_LOG(ERROR, TAG, "Parse PDU failed");
 201         return;
 202     }
 203
 204     char uri[CA_MAX_URI_LENGTH] = { 0, };
 205     uint32_t bufLen = sizeof(uri);
 206
 207     if (CA_GET == code || CA_POST == code || CA_PUT == code || CA_DELETE == code)
 208     {
 209         CARequestInfo_t *ReqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 210         if (NULL == ReqInfo)
 211         {
 212             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 213             coap_delete_pdu(pdu);
 214             return;
 215         }
 216
 217         CAResult_t res = CAGetRequestInfoFromPDU(pdu, ReqInfo, uri, bufLen);
 218         if (CA_STATUS_OK != res)
 219         {
 220             OIC_LOG_V(ERROR, TAG, "CAGetRequestInfoFromPDU failed : %d", res);
 221             OICFree(ReqInfo);
 222             coap_delete_pdu(pdu);
 223             return;
 224         }
 225
 226         if (NULL != ReqInfo->info.options)
 227         {
 228             for (uint32_t i = 0; i < ReqInfo->info.numOptions; i++)
 229             {
 230                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", ReqInfo->info.options[i].optionID);
 231
 232                 OIC_LOG_V(DEBUG, TAG, "list: %s", ReqInfo->info.options[i].optionData);
 233             }
 234         }
 235
 236         if (NULL != ReqInfo->info.payload)
 237         {
 238             OIC_LOG_V(DEBUG, TAG, "Request- payload: %s", ReqInfo->info.payload);
 239         }
 240
 241         OIC_LOG_V(DEBUG, TAG, "code: %d", ReqInfo->method);
 242         OIC_LOG(DEBUG, TAG, "token:");
 243         OIC_LOG_BUFFER(DEBUG, TAG, (const uint8_t *) ReqInfo->info.token, CA_MAX_TOKEN_LEN);
 244         if (NULL != endpoint)
 245         {
 246             endpoint->resourceUri = (char *) OICMalloc(bufLen + 1);
 247             if (NULL == endpoint->resourceUri)
 248             {
 249                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 250                 OICFree(ReqInfo);
 251                 coap_delete_pdu(pdu);
 252                 return;
 253             }
 254             memcpy(endpoint->resourceUri, uri, bufLen);
 255             endpoint->resourceUri[bufLen] = '\0';
 256             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 257         }
 258
 259         if (ReqInfo)
 260         {
 261             if (g_requestHandler)
 262             {
 263                 g_requestHandler(endpoint, ReqInfo);
 264             }
 265
 266             CADestroyRequestInfoInternal(ReqInfo);
 267         }
 268     }
 269     else
 270     {
 271         CAResponseInfo_t *ResInfo = (CAResponseInfo_t *) OICCalloc(1, sizeof(CAResponseInfo_t));
 272         if (NULL == ResInfo)
 273         {
 274             OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed!");
 275             coap_delete_pdu(pdu);
 276             return;
 277         }
 278
 279         CAResult_t res = CAGetResponseInfoFromPDU(pdu, ResInfo, uri, bufLen);
 280         if (CA_STATUS_OK != res)
 281         {
 282             OIC_LOG_V(ERROR, TAG, "CAGetResponseInfoFromPDU failed : %d", res);
 283             OICFree(ResInfo);
 284             coap_delete_pdu(pdu);
 285             return;
 286         }
 287
 288         if (NULL != ResInfo->info.options)
 289         {
 290             for (uint32_t i = 0; i < ResInfo->info.numOptions; i++)
 291             {
 292                 OIC_LOG_V(DEBUG, TAG, "optionID: %d", ResInfo->info.options[i].optionID);
 293
 294                 OIC_LOG_V(DEBUG, TAG, "list: %s", ResInfo->info.options[i].optionData);
 295             }
 296         }
 297
 298         if (NULL != ResInfo->info.payload)
 299         {
 300             OIC_LOG_V(DEBUG, TAG, "payload: %s", ResInfo->info.payload);
 301         }
 302         OIC_LOG_V(DEBUG, TAG, "code: %d", ResInfo->result);
 303
 304         if (NULL != endpoint)
 305         {
 306             endpoint->resourceUri = (char *) OICMalloc(bufLen + 1);
 307             if (NULL == endpoint->resourceUri)
 308             {
 309                 OIC_LOG(ERROR, TAG, "CAReceivedPacketCallback, Memory allocation failed !");
 310                 OICFree(ResInfo);
 311                 coap_delete_pdu(pdu);
 312                 return;
 313             }
 314             memcpy(endpoint->resourceUri, uri, bufLen);
 315             endpoint->resourceUri[bufLen] = '\0';
 316             OIC_LOG_V(DEBUG, TAG, "URI : %s", endpoint->resourceUri);
 317         }
 318
 319         // for retransmission
 320         void *retransmissionPdu = NULL;
 321         CARetransmissionReceivedData(&g_retransmissionContext, endpoint, pdu->hdr, pdu->length,
 322                                      &retransmissionPdu);
 323
 324         // get token from saved data in retransmission list
 325         if (retransmissionPdu && CA_EMPTY == code)
 326         {
 327             CAResult_t res = CAGetTokenFromPDU((const coap_hdr_t *)retransmissionPdu,
 328                                                &(ResInfo->info));
 329             if(res != CA_STATUS_OK)
 330             {
 331                 OIC_LOG(ERROR, TAG, "fail to get Token from retransmission list");
 332                 OICFree(ResInfo->info.token);
 333             }
 334         }
 335         OICFree(retransmissionPdu);
 336
 337         if (NULL != ResInfo)
 338         {
 339             if (g_responseHandler)
 340             {
 341                 g_responseHandler(endpoint, ResInfo);
 342             }
 343             CADestroyResponseInfoInternal(ResInfo);
 344         }
 345     }
 346
 347     if (endpoint && endpoint->resourceUri)
 348     {
 349         OICFree(endpoint->resourceUri);
 350         endpoint->resourceUri = NULL;
 351     }
 352     if (pdu)
 353     {
 354         coap_delete_pdu(pdu);
 355     }
 356     OIC_LOG(DEBUG, TAG, "OUT");
 357 }
 358
 359 static void CANetworkChangedCallback(CALocalConnectivity_t *info, CANetworkStatus_t status)
 360 {
 361     OIC_LOG(DEBUG, TAG, "IN");
 362
 363     OIC_LOG(DEBUG, TAG, "OUT");
 364 }
 365
 366 void CAHandleRequestResponseCallbacks()
 367 {
 368     CAReadData();
 369     CARetransmissionBaseRoutine((void *)&g_retransmissionContext);
 370 }
 371
 372 CAResult_t CADetachRequestMessage(const CARemoteEndpoint_t *object, const CARequestInfo_t *request)
 373 {
 374     OIC_LOG(DEBUG, TAG, "IN");
 375
 376     VERIFY_NON_NULL(object, TAG, "object");
 377     VERIFY_NON_NULL(request, TAG, "request");
 378
 379     // If max retransmission queue is reached, then don't handle new request
 380     if (CA_MAX_RT_ARRAY_SIZE == u_arraylist_length(g_retransmissionContext.dataList))
 381     {
 382         OIC_LOG(ERROR, TAG, "max RT queue size reached!");
 383         return CA_SEND_FAILED;
 384     }
 385
 386     // allocate & initialize
 387     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 388     CA_MEMORY_ALLOC_CHECK(data);
 389
 390     // save data
 391     data->type = SEND_TYPE_UNICAST;
 392     data->remoteEndpoint = object;
 393     data->requestInfo = request;
 394     data->responseInfo = NULL;
 395
 396     CAProcessData(data);
 397     OICFree(data);
 398     OIC_LOG(DEBUG, TAG, "OUT");
 399     return CA_STATUS_OK;
 400
 401 // memory error label.
 402 memory_error_exit:
 403     OICFree(data);
 404     OIC_LOG(DEBUG, TAG, "OUT");
 405     return CA_MEMORY_ALLOC_FAILED;
 406 }
 407
 408 CAResult_t CADetachRequestToAllMessage(const CAGroupEndpoint_t *object,
 409                                        const CARequestInfo_t *request)
 410 {
 411     OIC_LOG(DEBUG, TAG, "IN");
 412
 413     if (NULL == object || NULL == request || NULL == object->resourceUri)
 414     {
 415         return CA_STATUS_INVALID_PARAM;
 416     }
 417
 418     if ((request->method < CA_GET) || (request->method > CA_DELETE))
 419     {
 420         OIC_LOG(ERROR, TAG, "Invalid method type!");
 421
 422         return CA_STATUS_INVALID_PARAM;
 423     }
 424
 425     // allocate & initialize
 426     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 427     CA_MEMORY_ALLOC_CHECK(data);
 428
 429     CAAddress_t addr = {0};
 430     CARemoteEndpoint_t *remoteEndpoint = CACreateRemoteEndpointInternal(object->resourceUri, addr,
 431                                                                         object->connectivityType);
 432
 433     // save data
 434     data->type = SEND_TYPE_MULTICAST;
 435     data->remoteEndpoint = remoteEndpoint;
 436     data->requestInfo = request;
 437     data->responseInfo = NULL;
 438
 439     CAProcessData(data);
 440     CADestroyRemoteEndpointInternal(remoteEndpoint);
 441
 442     OICFree(data);
 443     OIC_LOG(DEBUG, TAG, "OUT");
 444     return CA_STATUS_OK;
 445
 446 // memory error label.
 447 memory_error_exit:
 448
 449     OICFree(data);
 450     OIC_LOG(DEBUG, TAG, "OUT");
 451     return CA_MEMORY_ALLOC_FAILED;
 452 }
 453
 454 CAResult_t CADetachResponseMessage(const CARemoteEndpoint_t *object,
 455                                    const CAResponseInfo_t *response)
 456 {
 457     OIC_LOG(DEBUG, TAG, "IN");
 458     VERIFY_NON_NULL(object, TAG, "object");
 459     VERIFY_NON_NULL(response, TAG, "response");
 460
 461     // allocate & initialize
 462     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 463     CA_MEMORY_ALLOC_CHECK(data);
 464
 465     // save data
 466     data->type = SEND_TYPE_UNICAST;
 467     data->remoteEndpoint = object;
 468     data->requestInfo = NULL;
 469     data->responseInfo = response;
 470
 471     CAProcessData(data);
 472
 473     OICFree(data);
 474     OIC_LOG(DEBUG, TAG, "OUT");
 475     return CA_STATUS_OK;
 476
 477 // memory error label.
 478 memory_error_exit:
 479     OICFree(data);
 480     OIC_LOG(DEBUG, TAG, "OUT");
 481
 482     return CA_MEMORY_ALLOC_FAILED;
 483 }
 484
 485 CAResult_t CADetachMessageResourceUri(const CAURI_t resourceUri, const CAToken_t token,
 486                                       uint8_t tokenLength, const CAHeaderOption_t *options,
 487                                       uint8_t numOptions)
 488 {
 489     OIC_LOG(DEBUG, TAG, "IN");
 490     VERIFY_NON_NULL(resourceUri, TAG, "resourceUri is NULL");
 491     VERIFY_NON_NULL(token, TAG, "Token is NULL");
 492
 493     // allocate & initialize
 494     CAData_t *data = (CAData_t *) OICCalloc(1, sizeof(CAData_t));
 495     CA_MEMORY_ALLOC_CHECK(data);
 496
 497     CAAddress_t addr = {0};
 498     CARemoteEndpoint_t *remoteEndpoint =
 499             CACreateRemoteEndpointInternal(resourceUri, addr,
 500                                            CA_ETHERNET | CA_WIFI | CA_EDR | CA_LE);
 501
 502     // create request info
 503     CARequestInfo_t *reqInfo = (CARequestInfo_t *) OICCalloc(1, sizeof(CARequestInfo_t));
 504     CA_MEMORY_ALLOC_CHECK(reqInfo);
 505
 506     // save request info data
 507     reqInfo->method = CA_GET;
 508     reqInfo->info.type = CA_MSG_NONCONFIRM;
 509
 510     reqInfo->info.token = token;
 511     reqInfo->info.tokenLength = tokenLength;
 512
 513     // save data
 514     data->type = SEND_TYPE_MULTICAST;
 515     data->remoteEndpoint = remoteEndpoint;
 516     data->requestInfo = reqInfo;
 517
 518     data->responseInfo = NULL;
 519     data->options = NULL;
 520     data->numOptions = 0;
 521     CAHeaderOption_t *headerOption = NULL;
 522     if (NULL != options && numOptions > 0)
 523     {
 524         // copy data
 525         headerOption = (CAHeaderOption_t *) OICMalloc(sizeof(CAHeaderOption_t) * numOptions);
 526         CA_MEMORY_ALLOC_CHECK(headerOption);
 527         memcpy(headerOption, options, sizeof(CAHeaderOption_t) * numOptions);
 528
 529         data->options = headerOption;
 530         data->numOptions = numOptions;
 531     }
 532
 533     CAProcessData(data);
 534
 535     CADestroyRemoteEndpoint(remoteEndpoint);
 536     OICFree(headerOption);
 537     OICFree(data);
 538     OICFree(reqInfo);
 539     OIC_LOG(DEBUG, TAG, "OUT");
 540     return CA_STATUS_OK;
 541
 542 // memory error label.
 543 memory_error_exit:
 544
 545     CADestroyRemoteEndpointInternal(remoteEndpoint);
 546
 547     OICFree(reqInfo);
 548     OICFree(data);
 549     OIC_LOG(DEBUG, TAG, "OUT");
 550     return CA_MEMORY_ALLOC_FAILED;
 551 }
 552
 553 void CASetRequestResponseCallbacks(CARequestCallback ReqHandler, CAResponseCallback RespHandler)
 554 {
 555     OIC_LOG(DEBUG, TAG, "IN");
 556     g_requestHandler = ReqHandler;
 557     g_responseHandler = RespHandler;
 558     OIC_LOG(DEBUG, TAG, "OUT");
 559 }
 560
 561 CAResult_t CAInitializeMessageHandler()
 562 {
 563     OIC_LOG(DEBUG, TAG, "IN");
 564     CASetPacketReceivedCallback(CAReceivedPacketCallback);
 565
 566     CASetNetworkChangeCallback(CANetworkChangedCallback);
 567
 568     // retransmission initialize
 569     CARetransmissionInitialize(&g_retransmissionContext, CASendUnicastData,
 570                                CATimeoutCallback, NULL);
 571
 572     CAInitializeAdapters();
 573     OIC_LOG(DEBUG, TAG, "OUT");
 574     return CA_STATUS_OK;
 575 }
 576
 577 void CATerminateMessageHandler()
 578 {
 579     OIC_LOG(DEBUG, TAG, "IN");
 580     // terminate interface adapters by controller
 581     CATerminateAdapters();
 582
 583     // stop retransmission
 584     CARetransmissionStop(&g_retransmissionContext);
 585     CARetransmissionDestroy(&g_retransmissionContext);
 586
 587     OIC_LOG(DEBUG, TAG, "OUT");
 588 }
 589
 590 void CALogPDUInfo(coap_pdu_t *pdu)
 591 {
 592     VERIFY_NON_NULL_VOID(pdu, TAG, "pdu");
 593
 594     OIC_LOG_V(DEBUG, TAG, "PDU Maker - payload : %s", pdu->data);
 595
 596     OIC_LOG_V(DEBUG, TAG, "PDU Maker - type : %d", pdu->hdr->type);
 597
 598     OIC_LOG_V(DEBUG, TAG, "PDU Maker - code : %d", pdu->hdr->code);
 599
 600     OIC_LOG_V(DEBUG, TAG, "PDU Maker - id : %d", ntohs(pdu->hdr->id));
 601
 602     OIC_LOG(DEBUG, TAG, "PDU Maker - token :");
 603
 604     OIC_LOG_BUFFER(DEBUG, TAG, pdu->hdr->token, pdu->hdr->token_length);
 605 }
 606