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,
  99                                                             OicSecOxm_t *selectedMethod)
 100 {
 101     OIC_LOG(DEBUG, TAG, "IN SelectProvisioningMethod");
 102
 103     if(numberOfMethods == 0 || !supportedMethods)
 104     {
 105         OIC_LOG(WARNING, TAG, "Could not find a supported OxM.");
 106         return OC_STACK_ERROR;
 107     }
 108
 109     *selectedMethod  = supportedMethods[0];
 110     for(size_t i = 0; i < numberOfMethods; i++)
 111     {
 112         if(*selectedMethod < supportedMethods[i])
 113         {
 114             *selectedMethod =  supportedMethods[i];
 115         }
 116     }
 117
 118     return OC_STACK_OK;
 119 }
 120
 121 /**
 122  * Function to select operation mode.This function will return most secure common operation mode.
 123  *
 124  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 125  * @param[out]   selectedMode   selected operation mode
 126  * @return  OC_STACK_OK on success
 127  */
 128 static void SelectOperationMode(const OCProvisionDev_t *selectedDeviceInfo,
 129                                 OicSecDpom_t *selectedMode)
 130 {
 131     OIC_LOG(DEBUG, TAG, "IN SelectOperationMode");
 132
 133     size_t i = 0;
 134     size_t j = 0;
 135
 136     while (i < gNumOfProvisioningMethodsPT && j < selectedDeviceInfo->pstat->smLen)
 137     {
 138         if (gProvisioningToolCapability[i] < selectedDeviceInfo->pstat->sm[j])
 139         {
 140             i++;
 141         }
 142         else if (selectedDeviceInfo->pstat->sm[j] < gProvisioningToolCapability[i])
 143         {
 144             j++;
 145         }
 146         else /* if gProvisioningToolCapability[i] == deviceSupportedMethods[j] */
 147         {
 148             *selectedMode = gProvisioningToolCapability[j];
 149             break;
 150         }
 151     }
 152     OIC_LOG_V(DEBUG, TAG, "Selected Operation Mode = %d", *selectedMode);
 153
 154     OIC_LOG(DEBUG, TAG, "OUT SelectOperationMode");
 155 }
 156
 157 /**
 158  * Function to start ownership transfer.
 159  * This function will send the first request for provisioning,
 160  * The next request message is sent from the response handler for this request.
 161  *
 162  * @param[in] ctx   context value passed to callback from calling function.
 163  * @param[in] selectedDevice   selected device information to performing provisioning.
 164  * @return  OC_STACK_OK on success
 165  */
 166 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice);
 167
 168 /**
 169  * Function to update owner transfer mode
 170  *
 171  * @param[in]  otmCtx  Context value of ownership transfer.
 172  * @return  OC_STACK_OK on success
 173  */
 174 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx);
 175
 176 /**
 177  * Function to send request to resource to get its pstat resource information.
 178  *
 179  * @param[in]  otmCtx  Context value of ownership transfer.
 180  * @return  OC_STACK_OK on success
 181  */
 182 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx);
 183
 184
 185 /**
 186  * Function to send  uuid of owner device to new device.
 187  * This function would update 'owner of doxm' as UUID for provisioning tool.
 188  *
 189  * @param[in]  otmCtx  Context value of ownership transfer.
 190  * @return  OC_STACK_OK on success
 191  */
 192 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx);
 193
 194 /**
 195  * Function to update the operation mode. As per the spec. Operation mode in client driven
 196  * single service provisioning it will be updated to 0x3
 197  *
 198  * @param[in]  otmCtx  Context value of ownership transfer.
 199  * @return  OC_STACK_OK on success
 200  */
 201 static OCStackResult PutUpdateOperationMode(OTMContext_t* otmCtx);
 202
 203 /**
 204  * Function to update the owner credential to new device
 205  *
 206  * @param[in]  otmCtx  Context value of ownership transfer.
 207  * @param[in] selectedOperationMode selected operation mode
 208  * @return  OC_STACK_OK on success
 209  */
 210 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx);
 211
 212 /**
 213  * Function to send ownerShip info.
 214  * This function would update 'owned of doxm' as true.
 215  *
 216  * @param[in]  otmCtx  Context value of ownership transfer.
 217  * @return  OC_STACK_OK on success
 218  */
 219 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx);
 220
 221 /**
 222  * Function to update pstat when finalize provisioning.
 223  * This function would update 'cm' as bx0011,1100 and 'tm' as bx0000,0000.
 224  *
 225  * @param[in] ctx   context value passed to callback from calling function.
 226  * @param[in] selectedDevice   selected device information to performing provisioning.
 227  * @return  OC_STACK_OK on success
 228  */
 229 static OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx);
 230
 231 static bool IsComplete(OTMContext_t* otmCtx)
 232 {
 233     for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 234     {
 235         if(OC_STACK_CONTINUE == otmCtx->ctxResultArray[i].res)
 236         {
 237             return false;
 238         }
 239     }
 240
 241     return true;
 242 }
 243
 244 /**
 245  * Function to save the result of provisioning.
 246  *
 247  * @param[in,out] otmCtx   Context value of ownership transfer.
 248  * @param[in] res   result of provisioning
 249  */
 250 static void SetResult(OTMContext_t* otmCtx, const OCStackResult res)
 251 {
 252     OIC_LOG_V(DEBUG, TAG, "IN SetResult : %d ", res);
 253
 254     if(!otmCtx)
 255     {
 256         OIC_LOG(WARNING, TAG, "OTMContext is NULL");
 257         return;
 258     }
 259
 260     if(otmCtx->selectedDeviceInfo)
 261     {
 262         //Revert psk_info callback and new deivce uuid in case of random PIN OxM
 263         if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 264         {
 265             if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 266             {
 267                 OIC_LOG(WARNING, TAG, "Failed to revert  is DTLS credential handler.");
 268             }
 269             OicUuid_t emptyUuid = { .id={0}};
 270             SetUuidForRandomPinOxm(&emptyUuid);
 271         }
 272
 273         for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 274         {
 275             if(memcmp(otmCtx->selectedDeviceInfo->doxm->deviceID.id,
 276                       otmCtx->ctxResultArray[i].deviceId.id, UUID_LENGTH) == 0)
 277             {
 278                 otmCtx->ctxResultArray[i].res = res;
 279                 if(OC_STACK_OK != res)
 280                 {
 281                     otmCtx->ctxHasError = true;
 282                 }
 283             }
 284         }
 285
 286         g_otmCtx = NULL;
 287
 288         //If all request is completed, invoke the user callback.
 289         if(IsComplete(otmCtx))
 290         {
 291             otmCtx->ctxResultCallback(otmCtx->userCtx, otmCtx->ctxResultArraySize,
 292                                        otmCtx->ctxResultArray, otmCtx->ctxHasError);
 293             OICFree(otmCtx->ctxResultArray);
 294             OICFree(otmCtx);
 295         }
 296         else
 297         {
 298             if(OC_STACK_OK != StartOwnershipTransfer(otmCtx,
 299                                                      otmCtx->selectedDeviceInfo->next))
 300             {
 301                 OIC_LOG(ERROR, TAG, "Failed to StartOwnershipTransfer");
 302             }
 303         }
 304     }
 305
 306     OIC_LOG(DEBUG, TAG, "OUT SetResult");
 307 }
 308
 309 /**
 310  * Function to handle the handshake result in OTM.
 311  * This function will be invoked after DTLS handshake
 312  * @param   endPoint  [IN] The remote endpoint.
 313  * @param   errorInfo [IN] Error information from the endpoint.
 314  * @return  NONE
 315  */
 316 void DTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
 317 {
 318     if(NULL != g_otmCtx && NULL != g_otmCtx->selectedDeviceInfo &&
 319        NULL != endpoint && NULL != info)
 320     {
 321         OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
 322                  endpoint->addr, endpoint->port, info->result);
 323
 324         OicSecDoxm_t* newDevDoxm = g_otmCtx->selectedDeviceInfo->doxm;
 325
 326         if(NULL != newDevDoxm)
 327         {
 328             OicUuid_t emptyUuid = {.id={0}};
 329
 330             //Make sure the address matches.
 331             if(strncmp(g_otmCtx->selectedDeviceInfo->endpoint.addr,
 332                endpoint->addr,
 333                sizeof(endpoint->addr)) == 0 &&
 334                g_otmCtx->selectedDeviceInfo->securePort == endpoint->port)
 335             {
 336                 OCStackResult res = OC_STACK_ERROR;
 337
 338                 //If temporal secure sesstion established successfully
 339                 if(CA_STATUS_OK == info->result &&
 340                    false == newDevDoxm->owned &&
 341                    memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) == 0)
 342                 {
 343                     //Send request : PUT /oic/sec/doxm [{... , "devowner":"PT's UUID"}]
 344                     res = PutOwnerUuid(g_otmCtx);
 345                     if(OC_STACK_OK != res)
 346                     {
 347                         OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
 348                         SetResult(g_otmCtx, res);
 349                     }
 350                 }
 351                 //In case of authentication failure
 352                 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
 353                 {
 354                     //in case of error from owner credential
 355                     if(memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) != 0 &&
 356                         true == newDevDoxm->owned)
 357                     {
 358                         OIC_LOG(ERROR, TAG, "The owner credential may incorrect.");
 359
 360                         if(OC_STACK_OK != RemoveCredential(&(newDevDoxm->deviceID)))
 361                         {
 362                             OIC_LOG(WARNING, TAG, "Failed to remove the invaild owner credential");
 363                         }
 364                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 365                     }
 366                     //in case of error from wrong PIN, re-start the ownership transfer
 367                     else if(OIC_RANDOM_DEVICE_PIN == newDevDoxm->oxmSel)
 368                     {
 369                         OIC_LOG(ERROR, TAG, "The PIN number may incorrect.");
 370
 371                         memcpy(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
 372                         newDevDoxm->owned = false;
 373                         g_otmCtx->attemptCnt++;
 374
 375                         if(WRONG_PIN_MAX_ATTEMP > g_otmCtx->attemptCnt)
 376                         {
 377                             res = StartOwnershipTransfer(g_otmCtx, g_otmCtx->selectedDeviceInfo);
 378                             if(OC_STACK_OK != res)
 379                             {
 380                                 SetResult(g_otmCtx, res);
 381                                 OIC_LOG(ERROR, TAG, "Failed to Re-StartOwnershipTransfer");
 382                             }
 383                         }
 384                         else
 385                         {
 386                             OIC_LOG(ERROR, TAG, "User has exceeded the number of authentication attempts.");
 387                             SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 388                         }
 389                     }
 390                     else
 391                     {
 392                         OIC_LOG(ERROR, TAG, "Failed to establish secure session.");
 393                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 394                     }
 395                 }
 396             }
 397         }
 398     }
 399 }
 400
 401 /**
 402  * Function to save ownerPSK at provisioning tool end.
 403  *
 404  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 405  * @return  OC_STACK_OK on success
 406  */
 407 static OCStackResult SaveOwnerPSK(OCProvisionDev_t *selectedDeviceInfo)
 408 {
 409     OIC_LOG(DEBUG, TAG, "IN SaveOwnerPSK");
 410
 411     OCStackResult res = OC_STACK_ERROR;
 412
 413     CAEndpoint_t endpoint;
 414     memset(&endpoint, 0x00, sizeof(CAEndpoint_t));
 415     OICStrcpy(endpoint.addr, MAX_ADDR_STR_SIZE_CA, selectedDeviceInfo->endpoint.addr);
 416     endpoint.addr[MAX_ADDR_STR_SIZE_CA - 1] = '\0';
 417     endpoint.port = selectedDeviceInfo->securePort;
 418
 419     OicUuid_t ptDeviceID = {.id={0}};
 420     if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
 421     {
 422         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 423         return res;
 424     }
 425
 426     uint8_t ownerPSK[OWNER_PSK_LENGTH_128] = {0};
 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         uint32_t outLen = 0;
 443
 444         char base64Buff[B64ENCODE_OUT_SAFESIZE(sizeof(ownerPSK)) + 1] = {};
 445         B64Result b64Ret = b64Encode(ownerPSK, sizeof(ownerPSK), base64Buff, sizeof(base64Buff),
 446                 &outLen);
 447         VERIFY_SUCCESS(TAG, B64_OK == b64Ret, ERROR);
 448
 449         OicSecCred_t *cred = GenerateCredential(&selectedDeviceInfo->doxm->deviceID,
 450                 SYMMETRIC_PAIR_WISE_KEY, NULL,
 451                 base64Buff, ownLen, &ptDeviceID);
 452         VERIFY_NON_NULL(TAG, cred, ERROR);
 453
 454         res = AddCredential(cred);
 455         if(res != OC_STACK_OK)
 456         {
 457             DeleteCredList(cred);
 458             return res;
 459         }
 460     }
 461     else
 462     {
 463         OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
 464     }
 465
 466     OIC_LOG(DEBUG, TAG, "OUT SaveOwnerPSK");
 467 exit:
 468     return res;
 469 }
 470
 471 /**
 472  * Callback handler for OwnerShipTransferModeHandler API.
 473  *
 474  * @param[in] ctx             ctx value passed to callback from calling function.
 475  * @param[in] UNUSED          handle to an invocation
 476  * @param[in] clientResponse  Response from queries to remote servers.
 477  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 478  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 479  */
 480 static OCStackApplicationResult OwnerTransferModeHandler(void *ctx, OCDoHandle UNUSED,
 481                                                          OCClientResponse *clientResponse)
 482 {
 483     OIC_LOG(DEBUG, TAG, "IN OwnerTransferModeHandler");
 484
 485     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 486     VERIFY_NON_NULL(TAG, ctx, WARNING);
 487
 488     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 489     (void)UNUSED;
 490     if(clientResponse->result == OC_STACK_OK)
 491     {
 492         OIC_LOG(INFO, TAG, "OwnerTransferModeHandler : response result = OC_STACK_OK");
 493         //Send request : GET /oic/sec/pstat
 494         OCStackResult res = GetProvisioningStatusResource(otmCtx);
 495         if(OC_STACK_OK != res)
 496         {
 497             OIC_LOG(WARNING, TAG, "Failed to get pstat information");
 498             SetResult(otmCtx, res);
 499         }
 500     }
 501     else
 502     {
 503         OIC_LOG_V(WARNING, TAG, "OwnerTransferModeHandler : Client response is incorrect : %d",
 504         clientResponse->result);
 505         SetResult(otmCtx, clientResponse->result);
 506     }
 507
 508     OIC_LOG(DEBUG, TAG, "OUT OwnerTransferModeHandler");
 509
 510 exit:
 511     return  OC_STACK_DELETE_TRANSACTION;
 512 }
 513
 514 /**
 515  * Callback handler for ProvisioningStatusResouceHandler API.
 516  *
 517  * @param[in] ctx             ctx value passed to callback from calling function.
 518  * @param[in] UNUSED          handle to an invocation
 519  * @param[in] clientResponse  Response from queries to remote servers.
 520  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 521  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 522  */
 523 static OCStackApplicationResult ListMethodsHandler(void *ctx, OCDoHandle UNUSED,
 524                                                     OCClientResponse *clientResponse)
 525 {
 526     OIC_LOG(DEBUG, TAG, "IN ListMethodsHandler");
 527
 528     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 529     VERIFY_NON_NULL(TAG, ctx, WARNING);
 530
 531     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 532     (void)UNUSED;
 533     if  (OC_STACK_OK == clientResponse->result)
 534     {
 535         if  (NULL == clientResponse->payload)
 536         {
 537             OIC_LOG(INFO, TAG, "Skiping Null payload");
 538             SetResult(otmCtx, OC_STACK_ERROR);
 539             return OC_STACK_DELETE_TRANSACTION;
 540         }
 541
 542         if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 543         {
 544             OIC_LOG(INFO, TAG, "Unknown payload type");
 545             SetResult(otmCtx, OC_STACK_ERROR);
 546             return OC_STACK_DELETE_TRANSACTION;
 547         }
 548         uint8_t size = 0;
 549         OicSecPstat_t* pstat = NULL;
 550         OCStackResult result = CBORPayloadToPstat(
 551                 ((OCSecurityPayload*)clientResponse->payload)->securityData1,
 552                 size, &pstat);
 553         if(NULL == pstat && result != OC_STACK_OK)
 554         {
 555             OIC_LOG(ERROR, TAG, "Error while converting cbor to pstat.");
 556             SetResult(otmCtx, OC_STACK_ERROR);
 557             return OC_STACK_DELETE_TRANSACTION;
 558         }
 559         otmCtx->selectedDeviceInfo->pstat = pstat;
 560
 561         //Select operation mode (Currently supported SINGLE_SERVICE_CLIENT_DRIVEN only)
 562         SelectOperationMode(otmCtx->selectedDeviceInfo, &(otmCtx->selectedDeviceInfo->pstat->om));
 563
 564         //Send request : PUT /oic/sec/pstat [{"om":"bx11", .. }]
 565         OCStackResult res = PutUpdateOperationMode(otmCtx);
 566         if (OC_STACK_OK != res)
 567         {
 568             OIC_LOG(ERROR, TAG, "Error while updating operation mode.");
 569             SetResult(otmCtx, res);
 570         }
 571     }
 572     else
 573     {
 574         OIC_LOG_V(WARNING, TAG, "ListMethodsHandler : Client response is incorrect : %d",
 575             clientResponse->result);
 576         SetResult(otmCtx, clientResponse->result);
 577     }
 578
 579     OIC_LOG(DEBUG, TAG, "OUT ListMethodsHandler");
 580 exit:
 581     return  OC_STACK_DELETE_TRANSACTION;
 582 }
 583
 584 /**
 585  * Response handler for update owner uuid request.
 586  *
 587  * @param[in] ctx             ctx value passed to callback from calling function.
 588  * @param[in] UNUSED          handle to an invocation
 589  * @param[in] clientResponse  Response from queries to remote servers.
 590  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 591  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 592  */
 593 static OCStackApplicationResult OwnerUuidUpdateHandler(void *ctx, OCDoHandle UNUSED,
 594                                 OCClientResponse *clientResponse)
 595 {
 596     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 597     VERIFY_NON_NULL(TAG, ctx, WARNING);
 598
 599     OIC_LOG(DEBUG, TAG, "IN OwnerUuidUpdateHandler");
 600     (void)UNUSED;
 601     OCStackResult res = OC_STACK_OK;
 602     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 603
 604     if(OC_STACK_OK == clientResponse->result)
 605     {
 606         if(otmCtx && otmCtx->selectedDeviceInfo)
 607         {
 608             res = SaveOwnerPSK(otmCtx->selectedDeviceInfo);
 609             if(OC_STACK_OK != res)
 610             {
 611                 OIC_LOG(ERROR, TAG, "OwnerUuidUpdateHandler:Failed to owner PSK generation");
 612                 SetResult(otmCtx, res);
 613                 return OC_STACK_DELETE_TRANSACTION;
 614             }
 615
 616             //PUT owner credential to new device according to security spec B.
 617             res = PutOwnerCredential(otmCtx);
 618             if(OC_STACK_OK != res)
 619             {
 620                 OIC_LOG(ERROR, TAG,
 621                         "OwnerUuidUpdateHandler:Failed to send PUT request for onwer credential");
 622                 SetResult(otmCtx, res);
 623                 return OC_STACK_DELETE_TRANSACTION;
 624             }
 625         }
 626     }
 627     else
 628     {
 629         res = clientResponse->result;
 630         OIC_LOG_V(ERROR, TAG, "OwnerUuidHandler : Unexpected result %d", res);
 631         SetResult(otmCtx, res);
 632     }
 633
 634     OIC_LOG(DEBUG, TAG, "OUT OwnerUuidUpdateHandler");
 635
 636 exit:
 637     return  OC_STACK_DELETE_TRANSACTION;
 638 }
 639
 640 /**
 641  * Response handler for update operation mode.
 642  *
 643  * @param[in] ctx             ctx value passed to callback from calling function.
 644  * @param[in] UNUSED          handle to an invocation
 645  * @param[in] clientResponse  Response from queries to remote servers.
 646  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 647  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 648  */
 649 static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
 650                                 OCClientResponse *clientResponse)
 651 {
 652     OIC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
 653
 654     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 655     VERIFY_NON_NULL(TAG, ctx, WARNING);
 656
 657     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 658     (void) UNUSED;
 659     if  (OC_STACK_OK == clientResponse->result)
 660     {
 661         OCStackResult res = OC_STACK_ERROR;
 662         OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
 663         //DTLS Handshake
 664         //Load secret for temporal secure session.
 665         if(g_OTMDatas[selOxm].loadSecretCB)
 666         {
 667             res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
 668             if(OC_STACK_OK != res)
 669             {
 670                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
 671                 SetResult(otmCtx, res);
 672                 return  OC_STACK_DELETE_TRANSACTION;
 673             }
 674         }
 675
 676         //It will be used in handshake event handler
 677         g_otmCtx = otmCtx;
 678
 679         //Try DTLS handshake to generate secure session
 680         if(g_OTMDatas[selOxm].createSecureSessionCB)
 681         {
 682             res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
 683             if(OC_STACK_OK != res)
 684             {
 685                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
 686                 SetResult(otmCtx, res);
 687                 return OC_STACK_DELETE_TRANSACTION;
 688             }
 689         }
 690     }
 691     else
 692     {
 693         OIC_LOG(ERROR, TAG, "Error while update operation mode");
 694         SetResult(otmCtx, clientResponse->result);
 695     }
 696
 697     OIC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
 698
 699 exit:
 700     return  OC_STACK_DELETE_TRANSACTION;
 701 }
 702
 703 /**
 704  * Response handler for update owner crendetial request.
 705  *
 706  * @param[in] ctx             ctx value passed to callback from calling function.
 707  * @param[in] UNUSED          handle to an invocation
 708  * @param[in] clientResponse  Response from queries to remote servers.
 709  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 710  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 711  */
 712 static OCStackApplicationResult OwnerCredentialHandler(void *ctx, OCDoHandle UNUSED,
 713                                 OCClientResponse *clientResponse)
 714 {
 715     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 716     VERIFY_NON_NULL(TAG, ctx, WARNING);
 717
 718     OIC_LOG(DEBUG, TAG, "IN OwnerCredentialHandler");
 719     (void)UNUSED;
 720     OCStackResult res = OC_STACK_OK;
 721     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 722
 723     if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 724     {
 725         if(otmCtx && otmCtx->selectedDeviceInfo)
 726         {
 727             //Close the temporal secure session to verify the owner credential
 728             CAEndpoint_t* endpoint = (CAEndpoint_t *)&otmCtx->selectedDeviceInfo->endpoint;
 729             endpoint->port = otmCtx->selectedDeviceInfo->securePort;
 730             CAResult_t caResult = CACloseDtlsSession(endpoint);
 731             if(CA_STATUS_OK != caResult)
 732             {
 733                 OIC_LOG(ERROR, TAG, "Failed to close DTLS session");
 734                 SetResult(otmCtx, caResult);
 735                 return OC_STACK_DELETE_TRANSACTION;
 736             }
 737
 738             /**
 739              * If we select NULL cipher,
 740              * client will select appropriate cipher suite according to server's cipher-suite list.
 741              */
 742             caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL);
 743             if(CA_STATUS_OK != caResult)
 744             {
 745                 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
 746                 SetResult(otmCtx, caResult);
 747                 return OC_STACK_DELETE_TRANSACTION;
 748             }
 749
 750             /**
 751              * in case of random PIN based OxM,
 752              * revert get_psk_info callback of tinyDTLS to use owner credential.
 753              */
 754             if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 755             {
 756                 OicUuid_t emptyUuid = { .id={0}};
 757                 SetUuidForRandomPinOxm(&emptyUuid);
 758
 759                 if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 760                 {
 761                     OIC_LOG(ERROR, TAG, "Failed to revert DTLS credential handler.");
 762                     SetResult(otmCtx, OC_STACK_INVALID_CALLBACK);
 763                     return OC_STACK_DELETE_TRANSACTION;
 764                 }
 765             }
 766
 767             //PUT /oic/sec/doxm [{ ..., "owned":"TRUE" }]
 768             res = PutOwnershipInformation(otmCtx);
 769             if(OC_STACK_OK != res)
 770             {
 771                 OIC_LOG(ERROR, TAG, "Failed to put ownership information to new device");
 772                 SetResult(otmCtx, res);
 773                 return OC_STACK_DELETE_TRANSACTION;
 774             }
 775         }
 776     }
 777     else
 778     {
 779         res = clientResponse->result;
 780         OIC_LOG_V(ERROR, TAG, "OwnerCredentialHandler : Unexpected result %d", res);
 781         SetResult(otmCtx, res);
 782     }
 783
 784     OIC_LOG(DEBUG, TAG, "OUT OwnerCredentialHandler");
 785
 786 exit:
 787     return  OC_STACK_DELETE_TRANSACTION;
 788 }
 789
 790
 791 /**
 792  * Response handler for update owner information request.
 793  *
 794  * @param[in] ctx             ctx value passed to callback from calling function.
 795  * @param[in] UNUSED          handle to an invocation
 796  * @param[in] clientResponse  Response from queries to remote servers.
 797  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 798  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 799  */
 800 static OCStackApplicationResult OwnershipInformationHandler(void *ctx, OCDoHandle UNUSED,
 801                                 OCClientResponse *clientResponse)
 802 {
 803     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 804     VERIFY_NON_NULL(TAG, ctx, WARNING);
 805
 806     OIC_LOG(DEBUG, TAG, "IN OwnershipInformationHandler");
 807     (void)UNUSED;
 808     OCStackResult res = OC_STACK_OK;
 809     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 810
 811     if(OC_STACK_OK == clientResponse->result)
 812     {
 813         if(otmCtx && otmCtx->selectedDeviceInfo)
 814         {
 815             OIC_LOG(INFO, TAG, "Ownership transfer was successfully completed.");
 816             OIC_LOG(INFO, TAG, "Start defualt ACL & commit-hash provisioning.");
 817
 818             res = PutProvisioningStatus(otmCtx);
 819             if(OC_STACK_OK != res)
 820             {
 821                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 822                 SetResult(otmCtx, res);
 823             }
 824         }
 825     }
 826     else
 827     {
 828         res = clientResponse->result;
 829         OIC_LOG_V(ERROR, TAG, "OwnershipInformationHandler : Unexpected result %d", res);
 830         SetResult(otmCtx, res);
 831     }
 832
 833     OIC_LOG(DEBUG, TAG, "OUT OwnershipInformationHandler");
 834
 835 exit:
 836     return  OC_STACK_DELETE_TRANSACTION;
 837 }
 838
 839 /**
 840  * Response handler of update provisioning status.
 841  *
 842  * @param[in] ctx             ctx value passed to callback from calling function.
 843  * @param[in] UNUSED          handle to an invocation
 844  * @param[in] clientResponse  Response from queries to remote servers.
 845  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 846  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 847  */
 848 static OCStackApplicationResult ProvisioningStatusHandler(void *ctx, OCDoHandle UNUSED,
 849                                                        OCClientResponse *clientResponse)
 850 {
 851     OIC_LOG_V(INFO, TAG, "IN ProvisioningStatusHandler.");
 852
 853     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 854     VERIFY_NON_NULL(TAG, ctx, ERROR);
 855
 856     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 857     (void)UNUSED;
 858
 859     if (OC_STACK_OK == clientResponse->result)
 860     {
 861         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
 862          if (OC_STACK_OK == res)
 863          {
 864                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
 865                 SetResult(otmCtx, OC_STACK_OK);
 866                 return OC_STACK_DELETE_TRANSACTION;
 867          }
 868           else
 869          {
 870               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
 871          }
 872     }
 873     else
 874     {
 875         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 876                             clientResponse->result);
 877         SetResult(otmCtx, clientResponse->result);
 878     }
 879
 880
 881 exit:
 882     OIC_LOG_V(INFO, TAG, "OUT ProvisioningStatusHandler.");
 883     return OC_STACK_DELETE_TRANSACTION;
 884 }
 885
 886 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx)
 887 {
 888     OIC_LOG(DEBUG, TAG, "IN PutOwnerCredential");
 889
 890     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 891     {
 892         OIC_LOG(ERROR, TAG, "Invalid parameters");
 893         return OC_STACK_INVALID_PARAM;
 894     }
 895
 896     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 897     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 898
 899     if(!PMGenerateQuery(true,
 900                         deviceInfo->endpoint.addr, deviceInfo->securePort,
 901                         deviceInfo->connType,
 902                         query, sizeof(query), OIC_RSRC_CRED_URI))
 903     {
 904         OIC_LOG(ERROR, TAG, "PutOwnerCredential : Failed to generate query");
 905         return OC_STACK_ERROR;
 906     }
 907     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 908     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 909     if(!secPayload)
 910     {
 911         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 912         return OC_STACK_NO_MEMORY;
 913     }
 914
 915     //Generate owner credential for new device
 916     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 917     OicSecCred_t* ownerCredential =
 918         GetCredResourceData(&(deviceInfo->doxm->deviceID));
 919     if(!ownerCredential)
 920     {
 921         OIC_LOG(ERROR, TAG, "Can not find OwnerPSK.");
 922         return OC_STACK_NO_RESOURCE;
 923     }
 924
 925     OicUuid_t credSubjectId = {.id={0}};
 926     if(OC_STACK_OK == GetDoxmDeviceID(&credSubjectId))
 927     {
 928         OicSecCred_t newCredential;
 929         memcpy(&newCredential, ownerCredential, sizeof(OicSecCred_t));
 930         newCredential.next = NULL;
 931
 932         //Set subject ID as PT's ID
 933         memcpy(&(newCredential.subject), &credSubjectId, sizeof(OicUuid_t));
 934
 935         //Fill private data as empty string
 936         newCredential.privateData.data = NULL;
 937
 938         //Send owner credential to new device : PUT /oic/sec/cred [ owner credential ]
 939         secPayload->securityData = BinToCredJSON(&newCredential);
 940         if (NULL == secPayload->securityData)
 941         {
 942             OICFree(secPayload);
 943             OIC_LOG(ERROR, TAG, "Error while converting bin to json");
 944             return OC_STACK_ERROR;
 945         }
 946         OIC_LOG_V(DEBUG, TAG, "Payload : %s", secPayload->securityData);
 947
 948         OCCallbackData cbData;
 949         cbData.cb = &OwnerCredentialHandler;
 950         cbData.context = (void *)otmCtx;
 951         cbData.cd = NULL;
 952         OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query,
 953                                          &deviceInfo->endpoint, (OCPayload*)secPayload,
 954                                          deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
 955         if (res != OC_STACK_OK)
 956         {
 957             OIC_LOG(ERROR, TAG, "OCStack resource error");
 958         }
 959     }
 960     else
 961     {
 962         OIC_LOG(ERROR, TAG, "Failed to read DOXM device ID.");
 963         return OC_STACK_NO_RESOURCE;
 964     }
 965
 966     OIC_LOG(DEBUG, TAG, "OUT PutOwnerCredential");
 967
 968     return OC_STACK_OK;
 969 }
 970
 971 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx)
 972 {
 973     OIC_LOG(DEBUG, TAG, "IN PutOwnerTransferModeToResource");
 974
 975     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 976     {
 977         OIC_LOG(ERROR, TAG, "Invalid parameters");
 978         return OC_STACK_INVALID_PARAM;
 979     }
 980
 981     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 982     OicSecOxm_t selectedOxm = deviceInfo->doxm->oxmSel;
 983     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 984
 985     if(!PMGenerateQuery(false,
 986                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
 987                         deviceInfo->connType,
 988                         query, sizeof(query), OIC_RSRC_DOXM_URI))
 989     {
 990         OIC_LOG(ERROR, TAG, "PutOwnerTransferModeToResource : Failed to generate query");
 991         return OC_STACK_ERROR;
 992     }
 993     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 994     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 995     if(!secPayload)
 996     {
 997         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 998         return OC_STACK_NO_MEMORY;
 999     }
1000     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1001     secPayload->securityData = g_OTMDatas[selectedOxm].createSelectOxmPayloadCB(otmCtx);
1002     if (NULL == secPayload->securityData)
1003     {
1004         OICFree(secPayload);
1005         OIC_LOG(ERROR, TAG, "Error while converting bin to json");
1006         return OC_STACK_ERROR;
1007     }
1008
1009     OCCallbackData cbData;
1010     cbData.cb = &OwnerTransferModeHandler;
1011     cbData.context = (void *)otmCtx;
1012     cbData.cd = NULL;
1013     OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query,
1014                                      &deviceInfo->endpoint, (OCPayload*)secPayload,
1015                                      deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1016     if (res != OC_STACK_OK)
1017     {
1018         OIC_LOG(ERROR, TAG, "OCStack resource error");
1019     }
1020
1021     OIC_LOG(DEBUG, TAG, "OUT PutOwnerTransferModeToResource");
1022
1023     return res;
1024 }
1025
1026 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx)
1027 {
1028     OIC_LOG(DEBUG, TAG, "IN GetProvisioningStatusResource");
1029
1030     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1031     {
1032         OIC_LOG(ERROR, TAG, "Invailed parameters");
1033         return OC_STACK_INVALID_PARAM;
1034     }
1035
1036     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1037     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1038     if(!PMGenerateQuery(false,
1039                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1040                         deviceInfo->connType,
1041                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1042     {
1043         OIC_LOG(ERROR, TAG, "GetProvisioningStatusResource : Failed to generate query");
1044         return OC_STACK_ERROR;
1045     }
1046     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1047
1048     OCCallbackData cbData;
1049     cbData.cb = &ListMethodsHandler;
1050     cbData.context = (void *)otmCtx;
1051     cbData.cd = NULL;
1052     OCStackResult res = OCDoResource(NULL, OC_REST_GET, query, NULL, NULL,
1053                                      deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1054     if (res != OC_STACK_OK)
1055     {
1056         OIC_LOG(ERROR, TAG, "OCStack resource error");
1057     }
1058
1059     OIC_LOG(DEBUG, TAG, "OUT GetProvisioningStatusResource");
1060
1061     return res;
1062 }
1063
1064 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx)
1065 {
1066     OIC_LOG(DEBUG, TAG, "IN PutOwnerUuid");
1067
1068     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1069     {
1070         OIC_LOG(ERROR, TAG, "Invailed parameters");
1071         return OC_STACK_INVALID_PARAM;
1072     }
1073
1074     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1075     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1076     if(!PMGenerateQuery(true,
1077                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1078                         deviceInfo->connType,
1079                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1080     {
1081         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1082         return OC_STACK_ERROR;
1083     }
1084     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1085
1086     //PUT PT's uuid to new device
1087     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1088     if(!secPayload)
1089     {
1090         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1091         return OC_STACK_NO_MEMORY;
1092     }
1093     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1094     secPayload->securityData =
1095         g_OTMDatas[deviceInfo->doxm->oxmSel].createOwnerTransferPayloadCB(otmCtx);
1096     if (NULL == secPayload->securityData)
1097     {
1098         OICFree(secPayload);
1099         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1100         return OC_STACK_INVALID_PARAM;
1101     }
1102     OIC_LOG_V(DEBUG, TAG, "Payload : %s", secPayload->securityData);
1103
1104     OCCallbackData cbData;
1105     cbData.cb = &OwnerUuidUpdateHandler;
1106     cbData.context = (void *)otmCtx;
1107     cbData.cd = NULL;
1108
1109     OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1110                                      deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1111     if (res != OC_STACK_OK)
1112     {
1113         OIC_LOG(ERROR, TAG, "OCStack resource error");
1114     }
1115
1116     OIC_LOG(DEBUG, TAG, "OUT PutOwnerUuid");
1117
1118     return res;
1119 }
1120
1121 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx)
1122 {
1123     OIC_LOG(DEBUG, TAG, "IN PutOwnershipInformation");
1124
1125     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1126     {
1127         OIC_LOG(ERROR, TAG, "Invailed parameters");
1128         return OC_STACK_INVALID_PARAM;
1129     }
1130
1131     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1132     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1133     if(!PMGenerateQuery(true,
1134                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1135                         deviceInfo->connType,
1136                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1137     {
1138         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1139         return OC_STACK_ERROR;
1140     }
1141     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1142
1143     //OwnershipInformationHandler
1144     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1145     if(!secPayload)
1146     {
1147         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1148         return OC_STACK_NO_MEMORY;
1149     }
1150
1151     otmCtx->selectedDeviceInfo->doxm->owned = true;
1152     secPayload->securityData = BinToDoxmJSON(otmCtx->selectedDeviceInfo->doxm);
1153     if (NULL == secPayload->securityData)
1154     {
1155         OICFree(secPayload);
1156         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1157         return OC_STACK_INVALID_PARAM;
1158     }
1159     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1160
1161     OCCallbackData cbData;
1162     cbData.cb = &OwnershipInformationHandler;
1163     cbData.context = (void *)otmCtx;
1164     cbData.cd = NULL;
1165
1166     OCStackResult 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     size_t size = 0;
1207     OCStackResult res = PstatToCBORPayload(deviceInfo->pstat, &secPayload->securityData1,
1208                                            &size);
1209    if (OC_STACK_OK != res)
1210     {
1211         OCPayloadDestroy((OCPayload *)secPayload);
1212         OIC_LOG(ERROR, TAG, "Error while converting pstat to cbor.");
1213         return OC_STACK_INVALID_PARAM;
1214     }
1215
1216     OCCallbackData cbData;
1217     cbData.cb = &OperationModeUpdateHandler;
1218     cbData.context = (void *)otmCtx;
1219     cbData.cd = NULL;
1220     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1221                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1222     if (res != OC_STACK_OK)
1223     {
1224         OIC_LOG(ERROR, TAG, "OCStack resource error");
1225     }
1226
1227     OIC_LOG(DEBUG, TAG, "OUT PutUpdateOperationMode");
1228
1229     return res;
1230 }
1231
1232 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice)
1233 {
1234     OIC_LOG(INFO, TAG, "IN StartOwnershipTransfer");
1235     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1236     otmCtx->selectedDeviceInfo = selectedDevice;
1237
1238     //Set to the lowest level OxM, and then find more higher level OxM.
1239     OCStackResult res = SelectProvisioningMethod(selectedDevice->doxm->oxm,
1240                                                  selectedDevice->doxm->oxmLen,
1241                                                  &selectedDevice->doxm->oxmSel);
1242     if(OC_STACK_OK != res)
1243     {
1244         OIC_LOG(ERROR, TAG, "Failed to select the provisioning method");
1245         SetResult(otmCtx, res);
1246         return res;
1247     }
1248     OIC_LOG_V(DEBUG, TAG, "Selected provisoning method = %d", selectedDevice->doxm->oxmSel);
1249
1250     //Send Req: PUT /oic/sec/doxm [{..."OxmSel" :g_OTMDatas[Index of Selected OxM].OXMString,...}]
1251     res = PutOwnerTransferModeToResource(otmCtx);
1252     if(OC_STACK_OK != res)
1253     {
1254         OIC_LOG(WARNING, TAG, "Failed to select the provisioning method");
1255         SetResult(otmCtx, res);
1256         return res;
1257     }
1258
1259     //Register DTLS event handler to catch the dtls event while handshake
1260     if(CA_STATUS_OK != CARegisterDTLSHandshakeCallback(DTLSHandshakeCB))
1261     {
1262         OIC_LOG(WARNING, TAG, "StartOwnershipTransfer : Failed to register DTLS handshake callback.");
1263     }
1264
1265     OIC_LOG(INFO, TAG, "OUT StartOwnershipTransfer");
1266
1267     return res;
1268
1269 }
1270
1271 OCStackResult OTMSetOwnershipTransferCallbackData(OicSecOxm_t oxmType, OTMCallbackData_t* data)
1272 {
1273     OIC_LOG(DEBUG, TAG, "IN OTMSetOwnerTransferCallbackData");
1274
1275     if(!data)
1276     {
1277         OIC_LOG(ERROR, TAG, "OTMSetOwnershipTransferCallbackData : Invalid parameters");
1278         return OC_STACK_INVALID_PARAM;
1279     }
1280     if(oxmType >= OIC_OXM_COUNT)
1281     {
1282         OIC_LOG(INFO, TAG, "Unknow ownership transfer method");
1283         return OC_STACK_INVALID_PARAM;
1284     }
1285
1286     g_OTMDatas[oxmType].loadSecretCB= data->loadSecretCB;
1287     g_OTMDatas[oxmType].createSecureSessionCB = data->createSecureSessionCB;
1288     g_OTMDatas[oxmType].createSelectOxmPayloadCB = data->createSelectOxmPayloadCB;
1289     g_OTMDatas[oxmType].createOwnerTransferPayloadCB = data->createOwnerTransferPayloadCB;
1290
1291     OIC_LOG(DEBUG, TAG, "OUT OTMSetOwnerTransferCallbackData");
1292
1293     return OC_STACK_OK;
1294 }
1295
1296 /**
1297  * NOTE : Unowned discovery should be done before performing OTMDoOwnershipTransfer
1298  */
1299 OCStackResult OTMDoOwnershipTransfer(void* ctx,
1300                                      OCProvisionDev_t *selectedDevicelist,
1301                                      OCProvisionResultCB resultCallback)
1302 {
1303     OIC_LOG(DEBUG, TAG, "IN OTMDoOwnershipTransfer");
1304
1305     if (NULL == selectedDevicelist)
1306     {
1307         return OC_STACK_INVALID_PARAM;
1308     }
1309     if (NULL == resultCallback)
1310     {
1311         return OC_STACK_INVALID_CALLBACK;
1312     }
1313
1314     OTMContext_t* otmCtx = (OTMContext_t*)OICCalloc(1,sizeof(OTMContext_t));
1315     if(!otmCtx)
1316     {
1317         OIC_LOG(ERROR, TAG, "Failed to create OTM Context");
1318         return OC_STACK_NO_MEMORY;
1319     }
1320     otmCtx->ctxResultCallback = resultCallback;
1321     otmCtx->ctxHasError = false;
1322     otmCtx->userCtx = ctx;
1323     OCProvisionDev_t* pCurDev = selectedDevicelist;
1324
1325     //Counting number of selected devices.
1326     otmCtx->ctxResultArraySize = 0;
1327     while(NULL != pCurDev)
1328     {
1329         otmCtx->ctxResultArraySize++;
1330         pCurDev = pCurDev->next;
1331     }
1332
1333     otmCtx->ctxResultArray =
1334         (OCProvisionResult_t*)OICCalloc(otmCtx->ctxResultArraySize, sizeof(OCProvisionResult_t));
1335     if(NULL == otmCtx->ctxResultArray)
1336     {
1337         OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Failed to memory allocation");
1338         OICFree(otmCtx);
1339         return OC_STACK_NO_MEMORY;
1340     }
1341     pCurDev = selectedDevicelist;
1342
1343     OCStackResult res = OC_STACK_OK;
1344     //Fill the device UUID for result array.
1345     for(size_t devIdx = 0; devIdx < otmCtx->ctxResultArraySize; devIdx++)
1346     {
1347         //Checking duplication of Device ID.
1348         bool isDuplicate = true;
1349         res = PDMIsDuplicateDevice(&pCurDev->doxm->deviceID, &isDuplicate);
1350         if (OC_STACK_OK != res)
1351         {
1352             goto error;
1353         }
1354         if (isDuplicate)
1355         {
1356             OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Device ID is duplicated");
1357             res = OC_STACK_INVALID_PARAM;
1358             goto error;
1359         }
1360         memcpy(otmCtx->ctxResultArray[devIdx].deviceId.id,
1361                pCurDev->doxm->deviceID.id,
1362                UUID_LENGTH);
1363         otmCtx->ctxResultArray[devIdx].res = OC_STACK_CONTINUE;
1364         pCurDev = pCurDev->next;
1365     }
1366
1367     StartOwnershipTransfer(otmCtx, selectedDevicelist);
1368
1369     OIC_LOG(DEBUG, TAG, "OUT OTMDoOwnershipTransfer");
1370     return OC_STACK_OK;
1371
1372 error:
1373     OICFree(otmCtx->ctxResultArray);
1374     OICFree(otmCtx);
1375     return res;
1376 }
1377
1378 OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx)
1379 {
1380     OIC_LOG(INFO, TAG, "IN PutProvisioningStatus");
1381
1382     if(!otmCtx)
1383     {
1384         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1385         return OC_STACK_INVALID_PARAM;
1386     }
1387     if(!otmCtx->selectedDeviceInfo)
1388     {
1389         OIC_LOG(ERROR, TAG, "Can't find device information in OTMContext");
1390         OICFree(otmCtx);
1391         return OC_STACK_INVALID_PARAM;
1392     }
1393
1394     otmCtx->selectedDeviceInfo->pstat->tm = NORMAL;
1395     otmCtx->selectedDeviceInfo->pstat->cm = PROVISION_ACLS | PROVISION_CREDENTIALS |
1396                                             SECURITY_MANAGEMENT_SERVICES | BOOTSTRAP_SERVICE;
1397     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1398     if(!secPayload)
1399     {
1400         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1401         return OC_STACK_NO_MEMORY;
1402     }
1403     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1404     size_t size = 0;
1405     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1406             &secPayload->securityData1, &size))
1407     {
1408         OCPayloadDestroy((OCPayload *)secPayload);
1409         SetResult(otmCtx, OC_STACK_INVALID_JSON);
1410         return OC_STACK_INVALID_JSON;
1411     }
1412     OIC_LOG_V(INFO, TAG, "Created payload for commit hash: %s",secPayload->securityData1);
1413
1414     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1415     if(!PMGenerateQuery(true,
1416                         otmCtx->selectedDeviceInfo->endpoint.addr,
1417                         otmCtx->selectedDeviceInfo->securePort,
1418                         otmCtx->selectedDeviceInfo->connType,
1419                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1420     {
1421         OIC_LOG(ERROR, TAG, "PutProvisioningStatus : Failed to generate query");
1422         return OC_STACK_ERROR;
1423     }
1424     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1425
1426     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1427     cbData.cb = &ProvisioningStatusHandler;
1428     cbData.context = (void*)otmCtx;
1429     cbData.cd = NULL;
1430     OCStackResult ret = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1431             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1432     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1433     if (ret != OC_STACK_OK)
1434     {
1435         OIC_LOG(ERROR, TAG, "OCStack resource error");
1436         SetResult(otmCtx, ret);
1437     }
1438
1439     OIC_LOG(INFO, TAG, "OUT PutProvisioningStatus");
1440
1441     return ret;
1442 }