resource/csdk/security/provisioning/src/ownershiptransfermanager.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2015 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 // Defining _POSIX_C_SOURCE macro with 199309L (or greater) as value
  22 // causes header files to expose definitions
  23 // corresponding to the POSIX.1b, Real-time extensions
  24 // (IEEE Std 1003.1b-1993) specification
  25 //
  26 // For this specific file, see use of clock_gettime,
  27 // Refer to http://pubs.opengroup.org/stage7tc1/functions/clock_gettime.html
  28 // and to http://man7.org/linux/man-pages/man2/clock_gettime.2.html
  29 #ifndef _POSIX_C_SOURCE
  30 #define _POSIX_C_SOURCE 200809L
  31 #endif
  32
  33 #include <time.h>
  34 #include <unistd.h>
  35 #include <sys/time.h>
  36 #include <stdbool.h>
  37 #include <string.h>
  38
  39 #include "logger.h"
  40 #include "oic_malloc.h"
  41 #include "oic_string.h"
  42 #include "cacommon.h"
  43 #include "cainterface.h"
  44 #include "base64.h"
  45 #include "cJSON.h"
  46 #include "global.h"
  47
  48 #include "srmresourcestrings.h"
  49 #include "doxmresource.h"
  50 #include "pstatresource.h"
  51 #include "credresource.h"
  52 #include "aclresource.h"
  53 #include "ownershiptransfermanager.h"
  54 #include "securevirtualresourcetypes.h"
  55 #include "oxmjustworks.h"
  56 #include "pmtypes.h"
  57 #include "pmutility.h"
  58 #include "srmutility.h"
  59 #include "provisioningdatabasemanager.h"
  60 #include "oxmrandompin.h"
  61 #include "ocpayload.h"
  62 #include "payload_logging.h"
  63
  64 #define TAG "OTM"
  65
  66 /**
  67  * Array to store the callbacks for each owner transfer method.
  68  */
  69 static OTMCallbackData_t g_OTMDatas[OIC_OXM_COUNT];
  70
  71 /**
  72  * Variable for storing provisioning tool's provisioning capabilities
  73  * Must be in decreasing order of preference. More prefered method should
  74  * have lower array index.
  75  */
  76 static OicSecDpom_t gProvisioningToolCapability[] = { SINGLE_SERVICE_CLIENT_DRIVEN };
  77
  78 /**
  79  * Number of supported provisioning methods
  80  * current version supports only one.
  81  */
  82 static size_t gNumOfProvisioningMethodsPT = 1;
  83
  84 /**
  85  * Variables for pointing the OTMContext to be used in the DTLS handshake result callback.
  86  */
  87 static OTMContext_t* g_otmCtx = NULL;
  88
  89 /**
  90  * Function to select appropriate  provisioning method.
  91  *
  92  * @param[in] supportedMethods   Array of supported methods
  93  * @param[in] numberOfMethods   number of supported methods
  94  * @param[out]  selectedMethod         Selected methods
  95  * @return  OC_STACK_OK on success
  96  */
  97 static OCStackResult SelectProvisioningMethod(const OicSecOxm_t *supportedMethods,
  98         size_t numberOfMethods, OicSecOxm_t *selectedMethod)
  99 {
 100     OIC_LOG(DEBUG, TAG, "IN SelectProvisioningMethod");
 101
 102     if(numberOfMethods == 0 || !supportedMethods)
 103     {
 104         OIC_LOG(WARNING, TAG, "Could not find a supported OxM.");
 105         return OC_STACK_ERROR;
 106     }
 107
 108     *selectedMethod  = supportedMethods[0];
 109     for(size_t i = 0; i < numberOfMethods; i++)
 110     {
 111         if(*selectedMethod < supportedMethods[i])
 112         {
 113             *selectedMethod =  supportedMethods[i];
 114         }
 115     }
 116
 117     return OC_STACK_OK;
 118 }
 119
 120 /**
 121  * Function to select operation mode.This function will return most secure common operation mode.
 122  *
 123  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 124  * @param[out]   selectedMode   selected operation mode
 125  * @return  OC_STACK_OK on success
 126  */
 127 static void SelectOperationMode(const OCProvisionDev_t *selectedDeviceInfo,
 128                                 OicSecDpom_t *selectedMode)
 129 {
 130     OIC_LOG(DEBUG, TAG, "IN SelectOperationMode");
 131
 132     size_t i = 0;
 133     size_t j = 0;
 134
 135     while (i < gNumOfProvisioningMethodsPT && j < selectedDeviceInfo->pstat->smLen)
 136     {
 137         if (gProvisioningToolCapability[i] < selectedDeviceInfo->pstat->sm[j])
 138         {
 139             i++;
 140         }
 141         else if (selectedDeviceInfo->pstat->sm[j] < gProvisioningToolCapability[i])
 142         {
 143             j++;
 144         }
 145         else /* if gProvisioningToolCapability[i] == deviceSupportedMethods[j] */
 146         {
 147             *selectedMode = gProvisioningToolCapability[j];
 148             break;
 149         }
 150     }
 151     OIC_LOG_V(DEBUG, TAG, "Selected Operation Mode = %d", *selectedMode);
 152
 153     OIC_LOG(DEBUG, TAG, "OUT SelectOperationMode");
 154 }
 155
 156 /**
 157  * Function to start ownership transfer.
 158  * This function will send the first request for provisioning,
 159  * The next request message is sent from the response handler for this request.
 160  *
 161  * @param[in] ctx   context value passed to callback from calling function.
 162  * @param[in] selectedDevice   selected device information to performing provisioning.
 163  * @return  OC_STACK_OK on success
 164  */
 165 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice);
 166
 167 /**
 168  * Function to update owner transfer mode
 169  *
 170  * @param[in]  otmCtx  Context value of ownership transfer.
 171  * @return  OC_STACK_OK on success
 172  */
 173 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx);
 174
 175 /**
 176  * Function to send request to resource to get its pstat resource information.
 177  *
 178  * @param[in]  otmCtx  Context value of ownership transfer.
 179  * @return  OC_STACK_OK on success
 180  */
 181 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx);
 182
 183
 184 /**
 185  * Function to send  uuid of owner device to new device.
 186  * This function would update 'owner of doxm' as UUID for provisioning tool.
 187  *
 188  * @param[in]  otmCtx  Context value of ownership transfer.
 189  * @return  OC_STACK_OK on success
 190  */
 191 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx);
 192
 193 /**
 194  * Function to update the operation mode. As per the spec. Operation mode in client driven
 195  * single service provisioning it will be updated to 0x3
 196  *
 197  * @param[in]  otmCtx  Context value of ownership transfer.
 198  * @return  OC_STACK_OK on success
 199  */
 200 static OCStackResult PutUpdateOperationMode(OTMContext_t* otmCtx);
 201
 202 /**
 203  * Function to update the owner credential to new device
 204  *
 205  * @param[in]  otmCtx  Context value of ownership transfer.
 206  * @param[in] selectedOperationMode selected operation mode
 207  * @return  OC_STACK_OK on success
 208  */
 209 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx);
 210
 211 /**
 212  * Function to send ownerShip info.
 213  * This function would update 'owned of doxm' as true.
 214  *
 215  * @param[in]  otmCtx  Context value of ownership transfer.
 216  * @return  OC_STACK_OK on success
 217  */
 218 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx);
 219
 220 /**
 221  * Function to update pstat when finalize provisioning.
 222  * This function would update 'cm' as bx0011,1100 and 'tm' as bx0000,0000.
 223  *
 224  * @param[in] ctx   context value passed to callback from calling function.
 225  * @param[in] selectedDevice   selected device information to performing provisioning.
 226  * @return  OC_STACK_OK on success
 227  */
 228 static OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx);
 229
 230 static bool IsComplete(OTMContext_t* otmCtx)
 231 {
 232     for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 233     {
 234         if(OC_STACK_CONTINUE == otmCtx->ctxResultArray[i].res)
 235         {
 236             return false;
 237         }
 238     }
 239
 240     return true;
 241 }
 242
 243 /**
 244  * Function to save the result of provisioning.
 245  *
 246  * @param[in,out] otmCtx   Context value of ownership transfer.
 247  * @param[in] res   result of provisioning
 248  */
 249 static void SetResult(OTMContext_t* otmCtx, const OCStackResult res)
 250 {
 251     OIC_LOG_V(DEBUG, TAG, "IN SetResult : %d ", res);
 252
 253     if(!otmCtx)
 254     {
 255         OIC_LOG(WARNING, TAG, "OTMContext is NULL");
 256         return;
 257     }
 258
 259     if(otmCtx->selectedDeviceInfo)
 260     {
 261         //Revert psk_info callback and new deivce uuid in case of random PIN OxM
 262         if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 263         {
 264             if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 265             {
 266                 OIC_LOG(WARNING, TAG, "Failed to revert  is DTLS credential handler.");
 267             }
 268             OicUuid_t emptyUuid = { .id={0}};
 269             SetUuidForRandomPinOxm(&emptyUuid);
 270         }
 271
 272         for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 273         {
 274             if(memcmp(otmCtx->selectedDeviceInfo->doxm->deviceID.id,
 275                       otmCtx->ctxResultArray[i].deviceId.id, UUID_LENGTH) == 0)
 276             {
 277                 otmCtx->ctxResultArray[i].res = res;
 278                 if(OC_STACK_OK != res)
 279                 {
 280                     otmCtx->ctxHasError = true;
 281                 }
 282             }
 283         }
 284
 285         g_otmCtx = NULL;
 286
 287         //If all request is completed, invoke the user callback.
 288         if(IsComplete(otmCtx))
 289         {
 290             otmCtx->ctxResultCallback(otmCtx->userCtx, otmCtx->ctxResultArraySize,
 291                                        otmCtx->ctxResultArray, otmCtx->ctxHasError);
 292             OICFree(otmCtx->ctxResultArray);
 293             OICFree(otmCtx);
 294         }
 295         else
 296         {
 297             if(OC_STACK_OK != StartOwnershipTransfer(otmCtx,
 298                                                      otmCtx->selectedDeviceInfo->next))
 299             {
 300                 OIC_LOG(ERROR, TAG, "Failed to StartOwnershipTransfer");
 301             }
 302         }
 303     }
 304
 305     OIC_LOG(DEBUG, TAG, "OUT SetResult");
 306 }
 307
 308 /**
 309  * Function to handle the handshake result in OTM.
 310  * This function will be invoked after DTLS handshake
 311  * @param   endPoint  [IN] The remote endpoint.
 312  * @param   errorInfo [IN] Error information from the endpoint.
 313  * @return  NONE
 314  */
 315 void DTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
 316 {
 317     if(NULL != g_otmCtx && NULL != g_otmCtx->selectedDeviceInfo &&
 318        NULL != endpoint && NULL != info)
 319     {
 320         OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
 321                  endpoint->addr, endpoint->port, info->result);
 322
 323         OicSecDoxm_t* newDevDoxm = g_otmCtx->selectedDeviceInfo->doxm;
 324
 325         if(NULL != newDevDoxm)
 326         {
 327             OicUuid_t emptyUuid = {.id={0}};
 328
 329             //Make sure the address matches.
 330             if(strncmp(g_otmCtx->selectedDeviceInfo->endpoint.addr,
 331                endpoint->addr,
 332                sizeof(endpoint->addr)) == 0 &&
 333                g_otmCtx->selectedDeviceInfo->securePort == endpoint->port)
 334             {
 335                 OCStackResult res = OC_STACK_ERROR;
 336
 337                 //If temporal secure sesstion established successfully
 338                 if(CA_STATUS_OK == info->result &&
 339                    false == newDevDoxm->owned &&
 340                    memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) == 0)
 341                 {
 342                     //Send request : PUT /oic/sec/doxm [{... , "devowner":"PT's UUID"}]
 343                     res = PutOwnerUuid(g_otmCtx);
 344                     if(OC_STACK_OK != res)
 345                     {
 346                         OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
 347                         SetResult(g_otmCtx, res);
 348                     }
 349                 }
 350                 //In case of authentication failure
 351                 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
 352                 {
 353                     //in case of error from owner credential
 354                     if(memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) != 0 &&
 355                         true == newDevDoxm->owned)
 356                     {
 357                         OIC_LOG(ERROR, TAG, "The owner credential may incorrect.");
 358
 359                         if(OC_STACK_OK != RemoveCredential(&(newDevDoxm->deviceID)))
 360                         {
 361                             OIC_LOG(WARNING, TAG, "Failed to remove the invaild owner credential");
 362                         }
 363                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 364                     }
 365                     //in case of error from wrong PIN, re-start the ownership transfer
 366                     else if(OIC_RANDOM_DEVICE_PIN == newDevDoxm->oxmSel)
 367                     {
 368                         OIC_LOG(ERROR, TAG, "The PIN number may incorrect.");
 369
 370                         memcpy(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
 371                         newDevDoxm->owned = false;
 372                         g_otmCtx->attemptCnt++;
 373
 374                         if(WRONG_PIN_MAX_ATTEMP > g_otmCtx->attemptCnt)
 375                         {
 376                             res = StartOwnershipTransfer(g_otmCtx, g_otmCtx->selectedDeviceInfo);
 377                             if(OC_STACK_OK != res)
 378                             {
 379                                 SetResult(g_otmCtx, res);
 380                                 OIC_LOG(ERROR, TAG, "Failed to Re-StartOwnershipTransfer");
 381                             }
 382                         }
 383                         else
 384                         {
 385                             OIC_LOG(ERROR, TAG, "User has exceeded the number of authentication attempts.");
 386                             SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 387                         }
 388                     }
 389                     else
 390                     {
 391                         OIC_LOG(ERROR, TAG, "Failed to establish secure session.");
 392                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 393                     }
 394                 }
 395             }
 396         }
 397     }
 398 }
 399
 400 /**
 401  * Function to save ownerPSK at provisioning tool end.
 402  *
 403  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 404  * @return  OC_STACK_OK on success
 405  */
 406 static OCStackResult SaveOwnerPSK(OCProvisionDev_t *selectedDeviceInfo)
 407 {
 408     OIC_LOG(DEBUG, TAG, "IN SaveOwnerPSK");
 409
 410     OCStackResult res = OC_STACK_ERROR;
 411
 412     CAEndpoint_t endpoint;
 413     memset(&endpoint, 0x00, sizeof(CAEndpoint_t));
 414     OICStrcpy(endpoint.addr, MAX_ADDR_STR_SIZE_CA, selectedDeviceInfo->endpoint.addr);
 415     endpoint.addr[MAX_ADDR_STR_SIZE_CA - 1] = '\0';
 416     endpoint.port = selectedDeviceInfo->securePort;
 417
 418     OicUuid_t ptDeviceID = {.id={0}};
 419     if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
 420     {
 421         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 422         return res;
 423     }
 424
 425     uint8_t ownerPSK[OWNER_PSK_LENGTH_128] = {0};
 426     OicSecKey_t ownerKey = {ownerPSK, OWNER_PSK_LENGTH_128};
 427
 428     //Generating OwnerPSK
 429     CAResult_t pskRet = CAGenerateOwnerPSK(&endpoint,
 430             (uint8_t *)GetOxmString(selectedDeviceInfo->doxm->oxmSel),
 431             strlen(GetOxmString(selectedDeviceInfo->doxm->oxmSel)),
 432             ptDeviceID.id, sizeof(ptDeviceID.id),
 433             selectedDeviceInfo->doxm->deviceID.id, sizeof(selectedDeviceInfo->doxm->deviceID.id),
 434             ownerPSK, OWNER_PSK_LENGTH_128);
 435
 436     if (CA_STATUS_OK == pskRet)
 437     {
 438         OIC_LOG(INFO, TAG,"ownerPSK dump:\n");
 439         OIC_LOG_BUFFER(INFO, TAG,ownerPSK, OWNER_PSK_LENGTH_128);
 440         //Generating new credential for provisioning tool
 441         size_t ownLen = 1;
 442
 443         OicSecCred_t *cred = GenerateCredential(&selectedDeviceInfo->doxm->deviceID,
 444                 SYMMETRIC_PAIR_WISE_KEY, NULL,
 445                 &ownerKey, ownLen, &ptDeviceID);
 446         VERIFY_NON_NULL(TAG, cred, ERROR);
 447
 448         res = AddCredential(cred);
 449         if(res != OC_STACK_OK)
 450         {
 451             DeleteCredList(cred);
 452             return res;
 453         }
 454     }
 455     else
 456     {
 457         OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
 458     }
 459
 460     OIC_LOG(DEBUG, TAG, "OUT SaveOwnerPSK");
 461 exit:
 462     return res;
 463 }
 464
 465 /**
 466  * Callback handler for OwnerShipTransferModeHandler API.
 467  *
 468  * @param[in] ctx             ctx value passed to callback from calling function.
 469  * @param[in] UNUSED          handle to an invocation
 470  * @param[in] clientResponse  Response from queries to remote servers.
 471  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 472  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 473  */
 474 static OCStackApplicationResult OwnerTransferModeHandler(void *ctx, OCDoHandle UNUSED,
 475                                                          OCClientResponse *clientResponse)
 476 {
 477     OIC_LOG(DEBUG, TAG, "IN OwnerTransferModeHandler");
 478
 479     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 480     VERIFY_NON_NULL(TAG, ctx, WARNING);
 481
 482     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 483     (void)UNUSED;
 484     if(clientResponse->result == OC_STACK_OK)
 485     {
 486         OIC_LOG(INFO, TAG, "OwnerTransferModeHandler : response result = OC_STACK_OK");
 487         //Send request : GET /oic/sec/pstat
 488         OCStackResult res = GetProvisioningStatusResource(otmCtx);
 489         if(OC_STACK_OK != res)
 490         {
 491             OIC_LOG(WARNING, TAG, "Failed to get pstat information");
 492             SetResult(otmCtx, res);
 493         }
 494     }
 495     else
 496     {
 497         OIC_LOG_V(WARNING, TAG, "OwnerTransferModeHandler : Client response is incorrect : %d",
 498         clientResponse->result);
 499         SetResult(otmCtx, clientResponse->result);
 500     }
 501
 502     OIC_LOG(DEBUG, TAG, "OUT OwnerTransferModeHandler");
 503
 504 exit:
 505     return  OC_STACK_DELETE_TRANSACTION;
 506 }
 507
 508 /**
 509  * Callback handler for ProvisioningStatusResouceHandler API.
 510  *
 511  * @param[in] ctx             ctx value passed to callback from calling function.
 512  * @param[in] UNUSED          handle to an invocation
 513  * @param[in] clientResponse  Response from queries to remote servers.
 514  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 515  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 516  */
 517 static OCStackApplicationResult ListMethodsHandler(void *ctx, OCDoHandle UNUSED,
 518                                                     OCClientResponse *clientResponse)
 519 {
 520     OIC_LOG(DEBUG, TAG, "IN ListMethodsHandler");
 521
 522     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 523     VERIFY_NON_NULL(TAG, ctx, WARNING);
 524
 525     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 526     (void)UNUSED;
 527     if  (OC_STACK_OK == clientResponse->result)
 528     {
 529         if  (NULL == clientResponse->payload)
 530         {
 531             OIC_LOG(INFO, TAG, "Skiping Null payload");
 532             SetResult(otmCtx, OC_STACK_ERROR);
 533             return OC_STACK_DELETE_TRANSACTION;
 534         }
 535
 536         if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 537         {
 538             OIC_LOG(INFO, TAG, "Unknown payload type");
 539             SetResult(otmCtx, OC_STACK_ERROR);
 540             return OC_STACK_DELETE_TRANSACTION;
 541         }
 542         OicSecPstat_t* pstat = NULL;
 543         OCStackResult result = CBORPayloadToPstat(
 544                 ((OCSecurityPayload*)clientResponse->payload)->securityData1,
 545                 ((OCSecurityPayload*)clientResponse->payload)->payloadSize,
 546                 &pstat);
 547         if(NULL == pstat && result != OC_STACK_OK)
 548         {
 549             OIC_LOG(ERROR, TAG, "Error while converting cbor to pstat.");
 550             SetResult(otmCtx, OC_STACK_ERROR);
 551             return OC_STACK_DELETE_TRANSACTION;
 552         }
 553         otmCtx->selectedDeviceInfo->pstat = pstat;
 554
 555         //Select operation mode (Currently supported SINGLE_SERVICE_CLIENT_DRIVEN only)
 556         SelectOperationMode(otmCtx->selectedDeviceInfo, &(otmCtx->selectedDeviceInfo->pstat->om));
 557
 558         //Send request : PUT /oic/sec/pstat [{"om":"bx11", .. }]
 559         OCStackResult res = PutUpdateOperationMode(otmCtx);
 560         if (OC_STACK_OK != res)
 561         {
 562             OIC_LOG(ERROR, TAG, "Error while updating operation mode.");
 563             SetResult(otmCtx, res);
 564         }
 565     }
 566     else
 567     {
 568         OIC_LOG_V(WARNING, TAG, "ListMethodsHandler : Client response is incorrect : %d",
 569             clientResponse->result);
 570         SetResult(otmCtx, clientResponse->result);
 571     }
 572
 573     OIC_LOG(DEBUG, TAG, "OUT ListMethodsHandler");
 574 exit:
 575     return  OC_STACK_DELETE_TRANSACTION;
 576 }
 577
 578 /**
 579  * Response handler for update owner uuid request.
 580  *
 581  * @param[in] ctx             ctx value passed to callback from calling function.
 582  * @param[in] UNUSED          handle to an invocation
 583  * @param[in] clientResponse  Response from queries to remote servers.
 584  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 585  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 586  */
 587 static OCStackApplicationResult OwnerUuidUpdateHandler(void *ctx, OCDoHandle UNUSED,
 588                                 OCClientResponse *clientResponse)
 589 {
 590     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 591     VERIFY_NON_NULL(TAG, ctx, WARNING);
 592
 593     OIC_LOG(DEBUG, TAG, "IN OwnerUuidUpdateHandler");
 594     (void)UNUSED;
 595     OCStackResult res = OC_STACK_OK;
 596     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 597
 598     if(OC_STACK_OK == clientResponse->result)
 599     {
 600         if(otmCtx && otmCtx->selectedDeviceInfo)
 601         {
 602             res = SaveOwnerPSK(otmCtx->selectedDeviceInfo);
 603             if(OC_STACK_OK != res)
 604             {
 605                 OIC_LOG(ERROR, TAG, "OwnerUuidUpdateHandler:Failed to owner PSK generation");
 606                 SetResult(otmCtx, res);
 607                 return OC_STACK_DELETE_TRANSACTION;
 608             }
 609
 610             //PUT owner credential to new device according to security spec B.
 611             res = PutOwnerCredential(otmCtx);
 612             if(OC_STACK_OK != res)
 613             {
 614                 OIC_LOG(ERROR, TAG,
 615                         "OwnerUuidUpdateHandler:Failed to send PUT request for onwer credential");
 616                 SetResult(otmCtx, res);
 617                 return OC_STACK_DELETE_TRANSACTION;
 618             }
 619         }
 620     }
 621     else
 622     {
 623         res = clientResponse->result;
 624         OIC_LOG_V(ERROR, TAG, "OwnerUuidHandler : Unexpected result %d", res);
 625         SetResult(otmCtx, res);
 626     }
 627
 628     OIC_LOG(DEBUG, TAG, "OUT OwnerUuidUpdateHandler");
 629
 630 exit:
 631     return  OC_STACK_DELETE_TRANSACTION;
 632 }
 633
 634 /**
 635  * Response handler for update operation mode.
 636  *
 637  * @param[in] ctx             ctx value passed to callback from calling function.
 638  * @param[in] UNUSED          handle to an invocation
 639  * @param[in] clientResponse  Response from queries to remote servers.
 640  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 641  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 642  */
 643 static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
 644                                 OCClientResponse *clientResponse)
 645 {
 646     OIC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
 647
 648     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 649     VERIFY_NON_NULL(TAG, ctx, WARNING);
 650
 651     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 652     (void) UNUSED;
 653     if  (OC_STACK_OK == clientResponse->result)
 654     {
 655         OCStackResult res = OC_STACK_ERROR;
 656         OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
 657         //DTLS Handshake
 658         //Load secret for temporal secure session.
 659         if(g_OTMDatas[selOxm].loadSecretCB)
 660         {
 661             res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
 662             if(OC_STACK_OK != res)
 663             {
 664                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
 665                 SetResult(otmCtx, res);
 666                 return  OC_STACK_DELETE_TRANSACTION;
 667             }
 668         }
 669
 670         //It will be used in handshake event handler
 671         g_otmCtx = otmCtx;
 672
 673         //Try DTLS handshake to generate secure session
 674         if(g_OTMDatas[selOxm].createSecureSessionCB)
 675         {
 676             res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
 677             if(OC_STACK_OK != res)
 678             {
 679                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
 680                 SetResult(otmCtx, res);
 681                 return OC_STACK_DELETE_TRANSACTION;
 682             }
 683         }
 684     }
 685     else
 686     {
 687         OIC_LOG(ERROR, TAG, "Error while update operation mode");
 688         SetResult(otmCtx, clientResponse->result);
 689     }
 690
 691     OIC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
 692
 693 exit:
 694     return  OC_STACK_DELETE_TRANSACTION;
 695 }
 696
 697 /**
 698  * Response handler for update owner crendetial request.
 699  *
 700  * @param[in] ctx             ctx value passed to callback from calling function.
 701  * @param[in] UNUSED          handle to an invocation
 702  * @param[in] clientResponse  Response from queries to remote servers.
 703  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 704  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 705  */
 706 static OCStackApplicationResult OwnerCredentialHandler(void *ctx, OCDoHandle UNUSED,
 707                                 OCClientResponse *clientResponse)
 708 {
 709     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 710     VERIFY_NON_NULL(TAG, ctx, WARNING);
 711
 712     OIC_LOG(DEBUG, TAG, "IN OwnerCredentialHandler");
 713     (void)UNUSED;
 714     OCStackResult res = OC_STACK_OK;
 715     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 716
 717     if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 718     {
 719         if(otmCtx && otmCtx->selectedDeviceInfo)
 720         {
 721             //Close the temporal secure session to verify the owner credential
 722             CAEndpoint_t* endpoint = (CAEndpoint_t *)&otmCtx->selectedDeviceInfo->endpoint;
 723             endpoint->port = otmCtx->selectedDeviceInfo->securePort;
 724             CAResult_t caResult = CACloseDtlsSession(endpoint);
 725             if(CA_STATUS_OK != caResult)
 726             {
 727                 OIC_LOG(ERROR, TAG, "Failed to close DTLS session");
 728                 SetResult(otmCtx, caResult);
 729                 return OC_STACK_DELETE_TRANSACTION;
 730             }
 731
 732             /**
 733              * If we select NULL cipher,
 734              * client will select appropriate cipher suite according to server's cipher-suite list.
 735              */
 736             caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL);
 737             if(CA_STATUS_OK != caResult)
 738             {
 739                 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
 740                 SetResult(otmCtx, caResult);
 741                 return OC_STACK_DELETE_TRANSACTION;
 742             }
 743
 744             /**
 745              * in case of random PIN based OxM,
 746              * revert get_psk_info callback of tinyDTLS to use owner credential.
 747              */
 748             if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 749             {
 750                 OicUuid_t emptyUuid = { .id={0}};
 751                 SetUuidForRandomPinOxm(&emptyUuid);
 752
 753                 if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 754                 {
 755                     OIC_LOG(ERROR, TAG, "Failed to revert DTLS credential handler.");
 756                     SetResult(otmCtx, OC_STACK_INVALID_CALLBACK);
 757                     return OC_STACK_DELETE_TRANSACTION;
 758                 }
 759             }
 760
 761             //PUT /oic/sec/doxm [{ ..., "owned":"TRUE" }]
 762             res = PutOwnershipInformation(otmCtx);
 763             if(OC_STACK_OK != res)
 764             {
 765                 OIC_LOG(ERROR, TAG, "Failed to put ownership information to new device");
 766                 SetResult(otmCtx, res);
 767                 return OC_STACK_DELETE_TRANSACTION;
 768             }
 769         }
 770     }
 771     else
 772     {
 773         res = clientResponse->result;
 774         OIC_LOG_V(ERROR, TAG, "OwnerCredentialHandler : Unexpected result %d", res);
 775         SetResult(otmCtx, res);
 776     }
 777
 778     OIC_LOG(DEBUG, TAG, "OUT OwnerCredentialHandler");
 779
 780 exit:
 781     return  OC_STACK_DELETE_TRANSACTION;
 782 }
 783
 784
 785 /**
 786  * Response handler for update owner information request.
 787  *
 788  * @param[in] ctx             ctx value passed to callback from calling function.
 789  * @param[in] UNUSED          handle to an invocation
 790  * @param[in] clientResponse  Response from queries to remote servers.
 791  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 792  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 793  */
 794 static OCStackApplicationResult OwnershipInformationHandler(void *ctx, OCDoHandle UNUSED,
 795                                 OCClientResponse *clientResponse)
 796 {
 797     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 798     VERIFY_NON_NULL(TAG, ctx, WARNING);
 799
 800     OIC_LOG(DEBUG, TAG, "IN OwnershipInformationHandler");
 801     (void)UNUSED;
 802     OCStackResult res = OC_STACK_OK;
 803     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 804
 805     if(OC_STACK_OK == clientResponse->result)
 806     {
 807         if(otmCtx && otmCtx->selectedDeviceInfo)
 808         {
 809             OIC_LOG(INFO, TAG, "Ownership transfer was successfully completed.");
 810             OIC_LOG(INFO, TAG, "Start defualt ACL & commit-hash provisioning.");
 811
 812             res = PutProvisioningStatus(otmCtx);
 813             if(OC_STACK_OK != res)
 814             {
 815                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 816                 SetResult(otmCtx, res);
 817             }
 818         }
 819     }
 820     else
 821     {
 822         res = clientResponse->result;
 823         OIC_LOG_V(ERROR, TAG, "OwnershipInformationHandler : Unexpected result %d", res);
 824         SetResult(otmCtx, res);
 825     }
 826
 827     OIC_LOG(DEBUG, TAG, "OUT OwnershipInformationHandler");
 828
 829 exit:
 830     return  OC_STACK_DELETE_TRANSACTION;
 831 }
 832
 833 /**
 834  * Response handler of update provisioning status.
 835  *
 836  * @param[in] ctx             ctx value passed to callback from calling function.
 837  * @param[in] UNUSED          handle to an invocation
 838  * @param[in] clientResponse  Response from queries to remote servers.
 839  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 840  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 841  */
 842 static OCStackApplicationResult ProvisioningStatusHandler(void *ctx, OCDoHandle UNUSED,
 843                                                        OCClientResponse *clientResponse)
 844 {
 845     OIC_LOG_V(INFO, TAG, "IN ProvisioningStatusHandler.");
 846
 847     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 848     VERIFY_NON_NULL(TAG, ctx, ERROR);
 849
 850     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 851     (void)UNUSED;
 852
 853     if (OC_STACK_OK == clientResponse->result)
 854     {
 855         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
 856          if (OC_STACK_OK == res)
 857          {
 858                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
 859                 SetResult(otmCtx, OC_STACK_OK);
 860                 return OC_STACK_DELETE_TRANSACTION;
 861          }
 862           else
 863          {
 864               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
 865          }
 866     }
 867     else
 868     {
 869         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 870                             clientResponse->result);
 871         SetResult(otmCtx, clientResponse->result);
 872     }
 873
 874
 875 exit:
 876     OIC_LOG_V(INFO, TAG, "OUT ProvisioningStatusHandler.");
 877     return OC_STACK_DELETE_TRANSACTION;
 878 }
 879
 880 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx)
 881 {
 882     OIC_LOG(DEBUG, TAG, "IN PutOwnerCredential");
 883
 884     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 885     {
 886         OIC_LOG(ERROR, TAG, "Invalid parameters");
 887         return OC_STACK_INVALID_PARAM;
 888     }
 889
 890     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 891     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 892
 893     if(!PMGenerateQuery(true,
 894                         deviceInfo->endpoint.addr, deviceInfo->securePort,
 895                         deviceInfo->connType,
 896                         query, sizeof(query), OIC_RSRC_CRED_URI))
 897     {
 898         OIC_LOG(ERROR, TAG, "PutOwnerCredential : Failed to generate query");
 899         return OC_STACK_ERROR;
 900     }
 901     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 902     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 903     if(!secPayload)
 904     {
 905         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 906         return OC_STACK_NO_MEMORY;
 907     }
 908
 909     //Generate owner credential for new device
 910     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 911     OicSecCred_t* ownerCredential = GetCredResourceData(&(deviceInfo->doxm->deviceID));
 912     if(!ownerCredential)
 913     {
 914         OIC_LOG(ERROR, TAG, "Can not find OwnerPSK.");
 915         return OC_STACK_NO_RESOURCE;
 916     }
 917
 918     OicUuid_t credSubjectId = {.id={0}};
 919     if(OC_STACK_OK == GetDoxmDeviceID(&credSubjectId))
 920     {
 921         OicSecCred_t newCredential;
 922         memcpy(&newCredential, ownerCredential, sizeof(OicSecCred_t));
 923         newCredential.next = NULL;
 924
 925         //Set subject ID as PT's ID
 926         memcpy(&(newCredential.subject), &credSubjectId, sizeof(OicUuid_t));
 927
 928         //Fill private data as empty string
 929         newCredential.privateData.data = NULL;
 930         newCredential.privateData.len = 0;
 931 #ifdef __WITH_X509__
 932         newCredential.publicData.data = NULL;
 933         newCredential.publicData.len = 0;
 934 #endif
 935
 936         //Send owner credential to new device : PUT /oic/sec/cred [ owner credential ]
 937         if (OC_STACK_OK != CredToCBORPayload(&newCredential, &secPayload->securityData1, &secPayload->payloadSize))
 938         {
 939             OICFree(secPayload);
 940             OIC_LOG(ERROR, TAG, "Error while converting bin to cbor.");
 941             return OC_STACK_ERROR;
 942         }
 943         OIC_LOG_V(DEBUG, TAG, "Payload : %s", secPayload->securityData1);
 944
 945         OCCallbackData cbData;
 946         cbData.cb = &OwnerCredentialHandler;
 947         cbData.context = (void *)otmCtx;
 948         cbData.cd = NULL;
 949         OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query,
 950                                          &deviceInfo->endpoint, (OCPayload*)secPayload,
 951                                          deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
 952         if (res != OC_STACK_OK)
 953         {
 954             OIC_LOG(ERROR, TAG, "OCStack resource error");
 955         }
 956     }
 957     else
 958     {
 959         OIC_LOG(ERROR, TAG, "Failed to read DOXM device ID.");
 960         return OC_STACK_NO_RESOURCE;
 961     }
 962
 963     OIC_LOG(DEBUG, TAG, "OUT PutOwnerCredential");
 964
 965     return OC_STACK_OK;
 966 }
 967
 968 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx)
 969 {
 970     OIC_LOG(DEBUG, TAG, "IN PutOwnerTransferModeToResource");
 971
 972     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 973     {
 974         OIC_LOG(ERROR, TAG, "Invalid parameters");
 975         return OC_STACK_INVALID_PARAM;
 976     }
 977
 978     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 979     OicSecOxm_t selectedOxm = deviceInfo->doxm->oxmSel;
 980     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 981
 982     if(!PMGenerateQuery(false,
 983                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
 984                         deviceInfo->connType,
 985                         query, sizeof(query), OIC_RSRC_DOXM_URI))
 986     {
 987         OIC_LOG(ERROR, TAG, "PutOwnerTransferModeToResource : Failed to generate query");
 988         return OC_STACK_ERROR;
 989     }
 990     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 991     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 992     if(!secPayload)
 993     {
 994         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 995         return OC_STACK_NO_MEMORY;
 996     }
 997     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 998     OCStackResult res = g_OTMDatas[selectedOxm].createSelectOxmPayloadCB(otmCtx,
 999             &secPayload->securityData1, &secPayload->payloadSize);
1000     if (OC_STACK_OK != res && NULL == secPayload->securityData1)
1001     {
1002         OCPayloadDestroy((OCPayload *)secPayload);
1003         OIC_LOG(ERROR, TAG, "Error while converting bin to cbor");
1004         return OC_STACK_ERROR;
1005     }
1006
1007     OCCallbackData cbData;
1008     cbData.cb = &OwnerTransferModeHandler;
1009     cbData.context = (void *)otmCtx;
1010     cbData.cd = NULL;
1011     res = OCDoResource(NULL, OC_REST_PUT, query,
1012                        &deviceInfo->endpoint, (OCPayload *)secPayload,
1013                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1014     if (res != OC_STACK_OK)
1015     {
1016         OIC_LOG(ERROR, TAG, "OCStack resource error");
1017     }
1018
1019     OIC_LOG(DEBUG, TAG, "OUT PutOwnerTransferModeToResource");
1020
1021     return res;
1022 }
1023
1024 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx)
1025 {
1026     OIC_LOG(DEBUG, TAG, "IN GetProvisioningStatusResource");
1027
1028     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1029     {
1030         OIC_LOG(ERROR, TAG, "Invailed parameters");
1031         return OC_STACK_INVALID_PARAM;
1032     }
1033
1034     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1035     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1036     if(!PMGenerateQuery(false,
1037                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1038                         deviceInfo->connType,
1039                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1040     {
1041         OIC_LOG(ERROR, TAG, "GetProvisioningStatusResource : Failed to generate query");
1042         return OC_STACK_ERROR;
1043     }
1044     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1045
1046     OCCallbackData cbData;
1047     cbData.cb = &ListMethodsHandler;
1048     cbData.context = (void *)otmCtx;
1049     cbData.cd = NULL;
1050     OCStackResult res = OCDoResource(NULL, OC_REST_GET, query, NULL, NULL,
1051                                      deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1052     if (res != OC_STACK_OK)
1053     {
1054         OIC_LOG(ERROR, TAG, "OCStack resource error");
1055     }
1056
1057     OIC_LOG(DEBUG, TAG, "OUT GetProvisioningStatusResource");
1058
1059     return res;
1060 }
1061
1062 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx)
1063 {
1064     OIC_LOG(DEBUG, TAG, "IN PutOwnerUuid");
1065
1066     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1067     {
1068         OIC_LOG(ERROR, TAG, "Invailed parameters");
1069         return OC_STACK_INVALID_PARAM;
1070     }
1071
1072     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1073     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1074     if(!PMGenerateQuery(true,
1075                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1076                         deviceInfo->connType,
1077                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1078     {
1079         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1080         return OC_STACK_ERROR;
1081     }
1082     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1083
1084     //PUT PT's uuid to new device
1085     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1086     if(!secPayload)
1087     {
1088         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1089         return OC_STACK_NO_MEMORY;
1090     }
1091     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1092     OCStackResult res =  g_OTMDatas[deviceInfo->doxm->oxmSel].createOwnerTransferPayloadCB(
1093             otmCtx, &secPayload->securityData1, &secPayload->payloadSize);
1094     if (NULL == secPayload->securityData1)
1095     {
1096         OCPayloadDestroy((OCPayload *)secPayload);
1097         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to cbor.");
1098         return OC_STACK_INVALID_PARAM;
1099     }
1100     OIC_LOG_V(DEBUG, TAG, "Payload : %s", secPayload->securityData1);
1101
1102     OCCallbackData cbData;
1103     cbData.cb = &OwnerUuidUpdateHandler;
1104     cbData.context = (void *)otmCtx;
1105     cbData.cd = NULL;
1106
1107     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload *)secPayload,
1108             deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1109     if (res != OC_STACK_OK)
1110     {
1111         OIC_LOG(ERROR, TAG, "OCStack resource error");
1112     }
1113
1114     OIC_LOG(DEBUG, TAG, "OUT PutOwnerUuid");
1115
1116     return res;
1117 }
1118
1119 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx)
1120 {
1121     OIC_LOG(DEBUG, TAG, "IN PutOwnershipInformation");
1122
1123     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1124     {
1125         OIC_LOG(ERROR, TAG, "Invailed parameters");
1126         return OC_STACK_INVALID_PARAM;
1127     }
1128
1129     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1130     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1131     if(!PMGenerateQuery(true,
1132                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1133                         deviceInfo->connType,
1134                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1135     {
1136         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1137         return OC_STACK_ERROR;
1138     }
1139     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1140
1141     //OwnershipInformationHandler
1142     OCSecurityPayload *secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1143     if (!secPayload)
1144     {
1145         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1146         return OC_STACK_NO_MEMORY;
1147     }
1148
1149     otmCtx->selectedDeviceInfo->doxm->owned = true;
1150
1151     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1152     OCStackResult res = DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm,
1153             &secPayload->securityData1, &secPayload->payloadSize);
1154     if (OC_STACK_OK != res && NULL == secPayload->securityData1)
1155     {
1156         OCPayloadDestroy((OCPayload *)secPayload);
1157         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1158         return OC_STACK_INVALID_PARAM;
1159     }
1160
1161     OCCallbackData cbData;
1162     cbData.cb = &OwnershipInformationHandler;
1163     cbData.context = (void *)otmCtx;
1164     cbData.cd = NULL;
1165
1166     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1167                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1168     if (res != OC_STACK_OK)
1169     {
1170         OIC_LOG(ERROR, TAG, "OCStack resource error");
1171     }
1172
1173     OIC_LOG(DEBUG, TAG, "OUT PutOwnershipInformation");
1174
1175     return res;
1176 }
1177
1178 static OCStackResult PutUpdateOperationMode(OTMContext_t* otmCtx)
1179 {
1180     OIC_LOG(DEBUG, TAG, "IN PutUpdateOperationMode");
1181
1182     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1183     {
1184         return OC_STACK_INVALID_PARAM;
1185     }
1186
1187     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1188     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1189     if(!PMGenerateQuery(false,
1190                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1191                         deviceInfo->connType,
1192                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1193     {
1194         OIC_LOG(ERROR, TAG, "PutUpdateOperationMode : Failed to generate query");
1195         return OC_STACK_ERROR;
1196     }
1197     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1198
1199     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1200     if(!secPayload)
1201     {
1202         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1203         return OC_STACK_NO_MEMORY;
1204     }
1205     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1206     OCStackResult res = PstatToCBORPayload(deviceInfo->pstat, &secPayload->securityData1,
1207                                            &secPayload->payloadSize);
1208    if (OC_STACK_OK != res)
1209     {
1210         OCPayloadDestroy((OCPayload *)secPayload);
1211         OIC_LOG(ERROR, TAG, "Error while converting pstat to cbor.");
1212         return OC_STACK_INVALID_PARAM;
1213     }
1214
1215     OCCallbackData cbData;
1216     cbData.cb = &OperationModeUpdateHandler;
1217     cbData.context = (void *)otmCtx;
1218     cbData.cd = NULL;
1219     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload *)secPayload,
1220                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1221     if (res != OC_STACK_OK)
1222     {
1223         OIC_LOG(ERROR, TAG, "OCStack resource error");
1224     }
1225
1226     OIC_LOG(DEBUG, TAG, "OUT PutUpdateOperationMode");
1227
1228     return res;
1229 }
1230
1231 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice)
1232 {
1233     OIC_LOG(INFO, TAG, "IN StartOwnershipTransfer");
1234     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1235     otmCtx->selectedDeviceInfo = selectedDevice;
1236
1237     //Set to the lowest level OxM, and then find more higher level OxM.
1238     OCStackResult res = SelectProvisioningMethod(selectedDevice->doxm->oxm,
1239                                                  selectedDevice->doxm->oxmLen,
1240                                                  &selectedDevice->doxm->oxmSel);
1241     if(OC_STACK_OK != res)
1242     {
1243         OIC_LOG(ERROR, TAG, "Failed to select the provisioning method");
1244         SetResult(otmCtx, res);
1245         return res;
1246     }
1247     OIC_LOG_V(DEBUG, TAG, "Selected provisoning method = %d", selectedDevice->doxm->oxmSel);
1248
1249     //Send Req: PUT /oic/sec/doxm [{..."OxmSel" :g_OTMDatas[Index of Selected OxM].OXMString,...}]
1250     res = PutOwnerTransferModeToResource(otmCtx);
1251     if(OC_STACK_OK != res)
1252     {
1253         OIC_LOG(WARNING, TAG, "Failed to select the provisioning method");
1254         SetResult(otmCtx, res);
1255         return res;
1256     }
1257
1258     //Register DTLS event handler to catch the dtls event while handshake
1259     if(CA_STATUS_OK != CARegisterDTLSHandshakeCallback(DTLSHandshakeCB))
1260     {
1261         OIC_LOG(WARNING, TAG, "StartOwnershipTransfer : Failed to register DTLS handshake callback.");
1262     }
1263
1264     OIC_LOG(INFO, TAG, "OUT StartOwnershipTransfer");
1265
1266     return res;
1267
1268 }
1269
1270 OCStackResult OTMSetOwnershipTransferCallbackData(OicSecOxm_t oxmType, OTMCallbackData_t* data)
1271 {
1272     OIC_LOG(DEBUG, TAG, "IN OTMSetOwnerTransferCallbackData");
1273
1274     if(!data)
1275     {
1276         OIC_LOG(ERROR, TAG, "OTMSetOwnershipTransferCallbackData : Invalid parameters");
1277         return OC_STACK_INVALID_PARAM;
1278     }
1279     if(oxmType >= OIC_OXM_COUNT)
1280     {
1281         OIC_LOG(INFO, TAG, "Unknow ownership transfer method");
1282         return OC_STACK_INVALID_PARAM;
1283     }
1284
1285     g_OTMDatas[oxmType].loadSecretCB= data->loadSecretCB;
1286     g_OTMDatas[oxmType].createSecureSessionCB = data->createSecureSessionCB;
1287     g_OTMDatas[oxmType].createSelectOxmPayloadCB = data->createSelectOxmPayloadCB;
1288     g_OTMDatas[oxmType].createOwnerTransferPayloadCB = data->createOwnerTransferPayloadCB;
1289
1290     OIC_LOG(DEBUG, TAG, "OUT OTMSetOwnerTransferCallbackData");
1291
1292     return OC_STACK_OK;
1293 }
1294
1295 /**
1296  * NOTE : Unowned discovery should be done before performing OTMDoOwnershipTransfer
1297  */
1298 OCStackResult OTMDoOwnershipTransfer(void* ctx,
1299                                      OCProvisionDev_t *selectedDevicelist,
1300                                      OCProvisionResultCB resultCallback)
1301 {
1302     OIC_LOG(DEBUG, TAG, "IN OTMDoOwnershipTransfer");
1303
1304     if (NULL == selectedDevicelist)
1305     {
1306         return OC_STACK_INVALID_PARAM;
1307     }
1308     if (NULL == resultCallback)
1309     {
1310         return OC_STACK_INVALID_CALLBACK;
1311     }
1312
1313     OTMContext_t* otmCtx = (OTMContext_t*)OICCalloc(1,sizeof(OTMContext_t));
1314     if(!otmCtx)
1315     {
1316         OIC_LOG(ERROR, TAG, "Failed to create OTM Context");
1317         return OC_STACK_NO_MEMORY;
1318     }
1319     otmCtx->ctxResultCallback = resultCallback;
1320     otmCtx->ctxHasError = false;
1321     otmCtx->userCtx = ctx;
1322     OCProvisionDev_t* pCurDev = selectedDevicelist;
1323
1324     //Counting number of selected devices.
1325     otmCtx->ctxResultArraySize = 0;
1326     while(NULL != pCurDev)
1327     {
1328         otmCtx->ctxResultArraySize++;
1329         pCurDev = pCurDev->next;
1330     }
1331
1332     otmCtx->ctxResultArray =
1333         (OCProvisionResult_t*)OICCalloc(otmCtx->ctxResultArraySize, sizeof(OCProvisionResult_t));
1334     if(NULL == otmCtx->ctxResultArray)
1335     {
1336         OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Failed to memory allocation");
1337         OICFree(otmCtx);
1338         return OC_STACK_NO_MEMORY;
1339     }
1340     pCurDev = selectedDevicelist;
1341
1342     OCStackResult res = OC_STACK_OK;
1343     //Fill the device UUID for result array.
1344     for(size_t devIdx = 0; devIdx < otmCtx->ctxResultArraySize; devIdx++)
1345     {
1346         //Checking duplication of Device ID.
1347         bool isDuplicate = true;
1348         res = PDMIsDuplicateDevice(&pCurDev->doxm->deviceID, &isDuplicate);
1349         if (OC_STACK_OK != res)
1350         {
1351             goto error;
1352         }
1353         if (isDuplicate)
1354         {
1355             OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Device ID is duplicated");
1356             res = OC_STACK_INVALID_PARAM;
1357             goto error;
1358         }
1359         memcpy(otmCtx->ctxResultArray[devIdx].deviceId.id,
1360                pCurDev->doxm->deviceID.id,
1361                UUID_LENGTH);
1362         otmCtx->ctxResultArray[devIdx].res = OC_STACK_CONTINUE;
1363         pCurDev = pCurDev->next;
1364     }
1365
1366     StartOwnershipTransfer(otmCtx, selectedDevicelist);
1367
1368     OIC_LOG(DEBUG, TAG, "OUT OTMDoOwnershipTransfer");
1369     return OC_STACK_OK;
1370
1371 error:
1372     OICFree(otmCtx->ctxResultArray);
1373     OICFree(otmCtx);
1374     return res;
1375 }
1376
1377 /**
1378  * Callback handler of SRPFinalizeProvisioning.
1379  *
1380  * @param[in] ctx             ctx value passed to callback from calling function.
1381  * @param[in] UNUSED          handle to an invocation
1382  * @param[in] clientResponse  Response from queries to remote servers.
1383  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1384  *          and OC_STACK_KEEP_TRANSACTION to keep it.
1385  */
1386 static OCStackApplicationResult FinalizeProvisioningCB(void *ctx, OCDoHandle UNUSED,
1387                                                        OCClientResponse *clientResponse)
1388 {
1389     OIC_LOG_V(INFO, TAG, "IN FinalizeProvisioningCB.");
1390
1391     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
1392     VERIFY_NON_NULL(TAG, ctx, ERROR);
1393
1394     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1395     (void)UNUSED;
1396     if(OC_STACK_OK == clientResponse->result)
1397     {
1398         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
1399
1400          if (OC_STACK_OK == res)
1401          {
1402                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
1403                 SetResult(otmCtx, OC_STACK_OK);
1404                 return OC_STACK_DELETE_TRANSACTION;
1405          }
1406          else
1407          {
1408               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
1409          }
1410     }
1411 exit:
1412     return OC_STACK_DELETE_TRANSACTION;
1413 }
1414
1415 /**
1416  * Callback handler of default ACL provisioning.
1417  *
1418  * @param[in] ctx             ctx value passed to callback from calling function.
1419  * @param[in] UNUSED          handle to an invocation
1420  * @param[in] clientResponse  Response from queries to remote servers.
1421  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1422  *          and OC_STACK_KEEP_TRANSACTION to keep it.
1423  */
1424 static OCStackApplicationResult ProvisionDefaultACLCB(void *ctx, OCDoHandle UNUSED,
1425                                                        OCClientResponse *clientResponse)
1426 {
1427     OIC_LOG_V(INFO, TAG, "IN ProvisionDefaultACLCB.");
1428
1429     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
1430     VERIFY_NON_NULL(TAG, ctx, ERROR);
1431
1432     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
1433     (void)UNUSED;
1434
1435     if (OC_STACK_RESOURCE_CREATED == clientResponse->result)
1436     {
1437         OIC_LOG_V(INFO, TAG, "Staring commit hash task.");
1438         // TODO hash currently have fixed value 0.
1439         uint16_t aclHash = 0;
1440         otmCtx->selectedDeviceInfo->pstat->commitHash = aclHash;
1441         otmCtx->selectedDeviceInfo->pstat->tm = NORMAL;
1442         OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1443         if(!secPayload)
1444         {
1445             OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1446             return OC_STACK_NO_MEMORY;
1447         }
1448         secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1449         OCStackResult res = PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1450                 &secPayload->securityData1, &secPayload->payloadSize);
1451         if (OC_STACK_OK != res || NULL == secPayload->securityData1)
1452         {
1453             OICFree(secPayload);
1454             SetResult(otmCtx, OC_STACK_INVALID_JSON);
1455             return OC_STACK_DELETE_TRANSACTION;
1456         }
1457
1458         char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1459         if(!PMGenerateQuery(true,
1460                             otmCtx->selectedDeviceInfo->endpoint.addr,
1461                             otmCtx->selectedDeviceInfo->securePort,
1462                             otmCtx->selectedDeviceInfo->connType,
1463                             query, sizeof(query), OIC_RSRC_PSTAT_URI))
1464         {
1465             OIC_LOG(ERROR, TAG, "ProvisionDefaultACLCB : Failed to generate query");
1466             return OC_STACK_ERROR;
1467         }
1468         OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1469
1470         OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1471         cbData.cb = &FinalizeProvisioningCB;
1472         cbData.context = (void*)otmCtx;
1473         cbData.cd = NULL;
1474         OCStackResult ret = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1475                 otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1476         OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1477         if (ret != OC_STACK_OK)
1478         {
1479             OIC_LOG(ERROR, TAG, "OCStack resource error");
1480             SetResult(otmCtx, ret);
1481         }
1482     }
1483     else
1484     {
1485         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
1486                             clientResponse->result);
1487         SetResult(otmCtx, clientResponse->result);
1488     }
1489 exit:
1490     return OC_STACK_DELETE_TRANSACTION;
1491 }
1492
1493 OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx)
1494 {
1495     OIC_LOG(INFO, TAG, "IN PutProvisioningStatus");
1496
1497     if(!otmCtx)
1498     {
1499         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1500         return OC_STACK_INVALID_PARAM;
1501     }
1502     if(!otmCtx->selectedDeviceInfo)
1503     {
1504         OIC_LOG(ERROR, TAG, "Can't find device information in OTMContext");
1505         OICFree(otmCtx);
1506         return OC_STACK_INVALID_PARAM;
1507     }
1508
1509     otmCtx->selectedDeviceInfo->pstat->tm = NORMAL;
1510     otmCtx->selectedDeviceInfo->pstat->cm = PROVISION_ACLS | PROVISION_CREDENTIALS |
1511                                             SECURITY_MANAGEMENT_SERVICES | BOOTSTRAP_SERVICE;
1512     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1513     if (!secPayload)
1514     {
1515         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1516         return OC_STACK_NO_MEMORY;
1517     }
1518     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1519     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1520             &secPayload->securityData1, &secPayload->payloadSize))
1521     {
1522         OCPayloadDestroy((OCPayload *)secPayload);
1523         SetResult(otmCtx, OC_STACK_INVALID_JSON);
1524         return OC_STACK_INVALID_JSON;
1525     }
1526     OIC_LOG_V(INFO, TAG, "Created payload for commit hash: %s",secPayload->securityData1);
1527
1528     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1529     if(!PMGenerateQuery(true,
1530                         otmCtx->selectedDeviceInfo->endpoint.addr,
1531                         otmCtx->selectedDeviceInfo->securePort,
1532                         otmCtx->selectedDeviceInfo->connType,
1533                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1534     {
1535         OIC_LOG(ERROR, TAG, "PutProvisioningStatus : Failed to generate query");
1536         return OC_STACK_ERROR;
1537     }
1538     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1539
1540     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1541     cbData.cb = &ProvisioningStatusHandler;
1542     cbData.context = (void*)otmCtx;
1543     cbData.cd = NULL;
1544     OCStackResult ret = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1545             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1546     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1547     if (ret != OC_STACK_OK)
1548     {
1549         OIC_LOG(ERROR, TAG, "OCStack resource error");
1550         SetResult(otmCtx, ret);
1551     }
1552
1553     OIC_LOG(INFO, TAG, "OUT PutProvisioningStatus");
1554
1555     return ret;
1556 }