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  * Variables for pointing the OTMContext to be used in the DTLS handshake result callback.
  73  */
  74 static OTMContext_t* g_otmCtx = NULL;
  75
  76 /**
  77  * Function to select appropriate  provisioning method.
  78  *
  79  * @param[in] supportedMethods   Array of supported methods
  80  * @param[in] numberOfMethods   number of supported methods
  81  * @param[out]  selectedMethod         Selected methods
  82  * @return  OC_STACK_OK on success
  83  */
  84 static OCStackResult SelectProvisioningMethod(const OicSecOxm_t *supportedMethods,
  85         size_t numberOfMethods, OicSecOxm_t *selectedMethod)
  86 {
  87     OIC_LOG(DEBUG, TAG, "IN SelectProvisioningMethod");
  88
  89     if(numberOfMethods == 0 || !supportedMethods)
  90     {
  91         OIC_LOG(WARNING, TAG, "Could not find a supported OxM.");
  92         return OC_STACK_ERROR;
  93     }
  94
  95     *selectedMethod  = supportedMethods[0];
  96     for(size_t i = 0; i < numberOfMethods; i++)
  97     {
  98         if(*selectedMethod < supportedMethods[i])
  99         {
 100             *selectedMethod =  supportedMethods[i];
 101         }
 102     }
 103
 104     return OC_STACK_OK;
 105 }
 106
 107 /**
 108  * Function to select operation mode.This function will return most secure common operation mode.
 109  *
 110  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 111  * @param[out]   selectedMode   selected operation mode
 112  * @return  OC_STACK_OK on success
 113  */
 114 static void SelectOperationMode(const OCProvisionDev_t *selectedDeviceInfo,
 115                                 OicSecDpom_t *selectedMode)
 116 {
 117     OIC_LOG(DEBUG, TAG, "IN SelectOperationMode");
 118     *selectedMode = selectedDeviceInfo->pstat->sm[0];
 119     OIC_LOG_V(DEBUG, TAG, "Selected Operation Mode = %d", *selectedMode);
 120 }
 121
 122 /**
 123  * Function to start ownership transfer.
 124  * This function will send the first request for provisioning,
 125  * The next request message is sent from the response handler for this request.
 126  *
 127  * @param[in] ctx   context value passed to callback from calling function.
 128  * @param[in] selectedDevice   selected device information to performing provisioning.
 129  * @return  OC_STACK_OK on success
 130  */
 131 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice);
 132
 133 /**
 134  * Function to update owner transfer mode
 135  *
 136  * @param[in]  otmCtx  Context value of ownership transfer.
 137  * @return  OC_STACK_OK on success
 138  */
 139 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx);
 140
 141 /**
 142  * Function to send request to resource to get its pstat resource information.
 143  *
 144  * @param[in]  otmCtx  Context value of ownership transfer.
 145  * @return  OC_STACK_OK on success
 146  */
 147 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx);
 148
 149
 150 /**
 151  * Function to send  uuid of owner device to new device.
 152  * This function would update 'owner of doxm' as UUID for provisioning tool.
 153  *
 154  * @param[in]  otmCtx  Context value of ownership transfer.
 155  * @return  OC_STACK_OK on success
 156  */
 157 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx);
 158
 159 /**
 160  * Function to update the operation mode. As per the spec. Operation mode in client driven
 161  * single service provisioning it will be updated to 0x3
 162  *
 163  * @param[in]  otmCtx  Context value of ownership transfer.
 164  * @return  OC_STACK_OK on success
 165  */
 166 static OCStackResult PutUpdateOperationMode(OTMContext_t* otmCtx);
 167
 168 /**
 169  * Function to update the owner credential to new device
 170  *
 171  * @param[in]  otmCtx  Context value of ownership transfer.
 172  * @param[in] selectedOperationMode selected operation mode
 173  * @return  OC_STACK_OK on success
 174  */
 175 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx);
 176
 177 /**
 178  * Function to send ownerShip info.
 179  * This function would update 'owned of doxm' as true.
 180  *
 181  * @param[in]  otmCtx  Context value of ownership transfer.
 182  * @return  OC_STACK_OK on success
 183  */
 184 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx);
 185
 186 /**
 187  * Function to update pstat as Ready for provisioning.
 188  * This function would update 'cm' from bx0000,0010 to bx0000,0000.
 189  *
 190  * @param[in] ctx   context value passed to callback from calling function.
 191  * @param[in] selectedDevice   selected device information to performing provisioning.
 192  * @return  OC_STACK_OK on success
 193  */
 194 static OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx);
 195
 196 /**
 197  * Function to update pstat as Ready for Normal Operation.
 198  * This function would update 'isop' from false to true.
 199  *
 200  * @param[in] ctx   context value passed to callback from calling function.
 201  * @param[in] selectedDevice   selected device information to performing provisioning.
 202  * @return  OC_STACK_OK on success
 203  */
 204 static OCStackResult PutNormalOperationStatus(OTMContext_t* otmCtx);
 205
 206 static bool IsComplete(OTMContext_t* otmCtx)
 207 {
 208     for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 209     {
 210         if(OC_STACK_CONTINUE == otmCtx->ctxResultArray[i].res)
 211         {
 212             return false;
 213         }
 214     }
 215
 216     return true;
 217 }
 218
 219 /**
 220  * Function to save the result of provisioning.
 221  *
 222  * @param[in,out] otmCtx   Context value of ownership transfer.
 223  * @param[in] res   result of provisioning
 224  */
 225 static void SetResult(OTMContext_t* otmCtx, const OCStackResult res)
 226 {
 227     OIC_LOG_V(DEBUG, TAG, "IN SetResult : %d ", res);
 228
 229     if(!otmCtx)
 230     {
 231         OIC_LOG(WARNING, TAG, "OTMContext is NULL");
 232         return;
 233     }
 234
 235     if(otmCtx->selectedDeviceInfo)
 236     {
 237         //Revert psk_info callback and new deivce uuid in case of random PIN OxM
 238         if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 239         {
 240             if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 241             {
 242                 OIC_LOG(WARNING, TAG, "Failed to revert  is DTLS credential handler.");
 243             }
 244             OicUuid_t emptyUuid = { .id={0}};
 245             SetUuidForRandomPinOxm(&emptyUuid);
 246         }
 247
 248         for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 249         {
 250             if(memcmp(otmCtx->selectedDeviceInfo->doxm->deviceID.id,
 251                       otmCtx->ctxResultArray[i].deviceId.id, UUID_LENGTH) == 0)
 252             {
 253                 otmCtx->ctxResultArray[i].res = res;
 254                 if(OC_STACK_OK != res)
 255                 {
 256                     otmCtx->ctxHasError = true;
 257                 }
 258             }
 259         }
 260
 261         g_otmCtx = NULL;
 262
 263         //If all request is completed, invoke the user callback.
 264         if(IsComplete(otmCtx))
 265         {
 266             otmCtx->ctxResultCallback(otmCtx->userCtx, otmCtx->ctxResultArraySize,
 267                                        otmCtx->ctxResultArray, otmCtx->ctxHasError);
 268             OICFree(otmCtx->ctxResultArray);
 269             OICFree(otmCtx);
 270         }
 271         else
 272         {
 273             if(OC_STACK_OK != StartOwnershipTransfer(otmCtx,
 274                                                      otmCtx->selectedDeviceInfo->next))
 275             {
 276                 OIC_LOG(ERROR, TAG, "Failed to StartOwnershipTransfer");
 277             }
 278         }
 279     }
 280
 281     OIC_LOG(DEBUG, TAG, "OUT SetResult");
 282 }
 283
 284 /**
 285  * Function to handle the handshake result in OTM.
 286  * This function will be invoked after DTLS handshake
 287  * @param   endPoint  [IN] The remote endpoint.
 288  * @param   errorInfo [IN] Error information from the endpoint.
 289  * @return  NONE
 290  */
 291 void DTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
 292 {
 293     if(NULL != g_otmCtx && NULL != g_otmCtx->selectedDeviceInfo &&
 294        NULL != endpoint && NULL != info)
 295     {
 296         OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
 297                  endpoint->addr, endpoint->port, info->result);
 298
 299         OicSecDoxm_t* newDevDoxm = g_otmCtx->selectedDeviceInfo->doxm;
 300
 301         if(NULL != newDevDoxm)
 302         {
 303             OicUuid_t emptyUuid = {.id={0}};
 304
 305             //Make sure the address matches.
 306             if(strncmp(g_otmCtx->selectedDeviceInfo->endpoint.addr,
 307                endpoint->addr,
 308                sizeof(endpoint->addr)) == 0 &&
 309                g_otmCtx->selectedDeviceInfo->securePort == endpoint->port)
 310             {
 311                 OCStackResult res = OC_STACK_ERROR;
 312
 313                 //If temporal secure sesstion established successfully
 314                 if(CA_STATUS_OK == info->result &&
 315                    false == newDevDoxm->owned &&
 316                    memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) == 0)
 317                 {
 318                     //Send request : PUT /oic/sec/doxm [{... , "devowner":"PT's UUID"}]
 319                     res = PutOwnerUuid(g_otmCtx);
 320                     if(OC_STACK_OK != res)
 321                     {
 322                         OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
 323                         SetResult(g_otmCtx, res);
 324                     }
 325                 }
 326                 //In case of authentication failure
 327                 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
 328                 {
 329                     //in case of error from owner credential
 330                     if(memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) != 0 &&
 331                         true == newDevDoxm->owned)
 332                     {
 333                         OIC_LOG(ERROR, TAG, "The owner credential may incorrect.");
 334
 335                         if(OC_STACK_OK != RemoveCredential(&(newDevDoxm->deviceID)))
 336                         {
 337                             OIC_LOG(WARNING, TAG, "Failed to remove the invaild owner credential");
 338                         }
 339                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 340                     }
 341                     //in case of error from wrong PIN, re-start the ownership transfer
 342                     else if(OIC_RANDOM_DEVICE_PIN == newDevDoxm->oxmSel)
 343                     {
 344                         OIC_LOG(ERROR, TAG, "The PIN number may incorrect.");
 345
 346                         memcpy(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
 347                         newDevDoxm->owned = false;
 348                         g_otmCtx->attemptCnt++;
 349
 350                         if(WRONG_PIN_MAX_ATTEMP > g_otmCtx->attemptCnt)
 351                         {
 352                             res = StartOwnershipTransfer(g_otmCtx, g_otmCtx->selectedDeviceInfo);
 353                             if(OC_STACK_OK != res)
 354                             {
 355                                 SetResult(g_otmCtx, res);
 356                                 OIC_LOG(ERROR, TAG, "Failed to Re-StartOwnershipTransfer");
 357                             }
 358                         }
 359                         else
 360                         {
 361                             OIC_LOG(ERROR, TAG, "User has exceeded the number of authentication attempts.");
 362                             SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 363                         }
 364                     }
 365                     else
 366                     {
 367                         OIC_LOG(ERROR, TAG, "Failed to establish secure session.");
 368                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 369                     }
 370                 }
 371             }
 372         }
 373     }
 374 }
 375
 376 /**
 377  * Function to save ownerPSK at provisioning tool end.
 378  *
 379  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 380  * @return  OC_STACK_OK on success
 381  */
 382 static OCStackResult SaveOwnerPSK(OCProvisionDev_t *selectedDeviceInfo)
 383 {
 384     OIC_LOG(DEBUG, TAG, "IN SaveOwnerPSK");
 385
 386     OCStackResult res = OC_STACK_ERROR;
 387
 388     CAEndpoint_t endpoint;
 389     memset(&endpoint, 0x00, sizeof(CAEndpoint_t));
 390     OICStrcpy(endpoint.addr, MAX_ADDR_STR_SIZE_CA, selectedDeviceInfo->endpoint.addr);
 391     endpoint.addr[MAX_ADDR_STR_SIZE_CA - 1] = '\0';
 392     endpoint.port = selectedDeviceInfo->securePort;
 393
 394     OicUuid_t ptDeviceID = {.id={0}};
 395     if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
 396     {
 397         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 398         return res;
 399     }
 400
 401     uint8_t ownerPSK[OWNER_PSK_LENGTH_128] = {0};
 402     OicSecKey_t ownerKey = {ownerPSK, OWNER_PSK_LENGTH_128};
 403
 404     //Generating OwnerPSK
 405     CAResult_t pskRet = CAGenerateOwnerPSK(&endpoint,
 406             (uint8_t *)GetOxmString(selectedDeviceInfo->doxm->oxmSel),
 407             strlen(GetOxmString(selectedDeviceInfo->doxm->oxmSel)),
 408             ptDeviceID.id, sizeof(ptDeviceID.id),
 409             selectedDeviceInfo->doxm->deviceID.id, sizeof(selectedDeviceInfo->doxm->deviceID.id),
 410             ownerPSK, OWNER_PSK_LENGTH_128);
 411
 412     if (CA_STATUS_OK == pskRet)
 413     {
 414         OIC_LOG(INFO, TAG,"ownerPSK dump:\n");
 415         OIC_LOG_BUFFER(INFO, TAG,ownerPSK, OWNER_PSK_LENGTH_128);
 416         //Generating new credential for provisioning tool
 417         OicSecCred_t *cred = GenerateCredential(&selectedDeviceInfo->doxm->deviceID,
 418                 SYMMETRIC_PAIR_WISE_KEY, NULL,
 419                 &ownerKey, &ptDeviceID);
 420         VERIFY_NON_NULL(TAG, cred, ERROR);
 421
 422         res = AddCredential(cred);
 423         if(res != OC_STACK_OK)
 424         {
 425             DeleteCredList(cred);
 426             return res;
 427         }
 428     }
 429     else
 430     {
 431         OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
 432     }
 433
 434     OIC_LOG(DEBUG, TAG, "OUT SaveOwnerPSK");
 435 exit:
 436     return res;
 437 }
 438
 439 /**
 440  * Callback handler for OwnerShipTransferModeHandler API.
 441  *
 442  * @param[in] ctx             ctx value passed to callback from calling function.
 443  * @param[in] UNUSED          handle to an invocation
 444  * @param[in] clientResponse  Response from queries to remote servers.
 445  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 446  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 447  */
 448 static OCStackApplicationResult OwnerTransferModeHandler(void *ctx, OCDoHandle UNUSED,
 449                                                          OCClientResponse *clientResponse)
 450 {
 451     OIC_LOG(DEBUG, TAG, "IN OwnerTransferModeHandler");
 452
 453     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 454     VERIFY_NON_NULL(TAG, ctx, WARNING);
 455
 456     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 457     (void)UNUSED;
 458     if(clientResponse->result == OC_STACK_OK)
 459     {
 460         OIC_LOG(INFO, TAG, "OwnerTransferModeHandler : response result = OC_STACK_OK");
 461         //Send request : GET /oic/sec/pstat
 462         OCStackResult res = GetProvisioningStatusResource(otmCtx);
 463         if(OC_STACK_OK != res)
 464         {
 465             OIC_LOG(WARNING, TAG, "Failed to get pstat information");
 466             SetResult(otmCtx, res);
 467         }
 468     }
 469     else
 470     {
 471         OIC_LOG_V(WARNING, TAG, "OwnerTransferModeHandler : Client response is incorrect : %d",
 472         clientResponse->result);
 473         SetResult(otmCtx, clientResponse->result);
 474     }
 475
 476     OIC_LOG(DEBUG, TAG, "OUT OwnerTransferModeHandler");
 477
 478 exit:
 479     return  OC_STACK_DELETE_TRANSACTION;
 480 }
 481
 482 /**
 483  * Callback handler for ProvisioningStatusResouceHandler API.
 484  *
 485  * @param[in] ctx             ctx value passed to callback from calling function.
 486  * @param[in] UNUSED          handle to an invocation
 487  * @param[in] clientResponse  Response from queries to remote servers.
 488  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 489  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 490  */
 491 static OCStackApplicationResult ListMethodsHandler(void *ctx, OCDoHandle UNUSED,
 492                                                     OCClientResponse *clientResponse)
 493 {
 494     OIC_LOG(DEBUG, TAG, "IN ListMethodsHandler");
 495
 496     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 497     VERIFY_NON_NULL(TAG, ctx, WARNING);
 498
 499     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 500     (void)UNUSED;
 501     if  (OC_STACK_OK == clientResponse->result)
 502     {
 503         if  (NULL == clientResponse->payload)
 504         {
 505             OIC_LOG(INFO, TAG, "Skiping Null payload");
 506             SetResult(otmCtx, OC_STACK_ERROR);
 507             return OC_STACK_DELETE_TRANSACTION;
 508         }
 509
 510         if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 511         {
 512             OIC_LOG(INFO, TAG, "Unknown payload type");
 513             SetResult(otmCtx, OC_STACK_ERROR);
 514             return OC_STACK_DELETE_TRANSACTION;
 515         }
 516         OicSecPstat_t* pstat = NULL;
 517         OCStackResult result = CBORPayloadToPstat(
 518                 ((OCSecurityPayload*)clientResponse->payload)->securityData,
 519                 ((OCSecurityPayload*)clientResponse->payload)->payloadSize,
 520                 &pstat);
 521         if(NULL == pstat || result != OC_STACK_OK)
 522         {
 523             OIC_LOG(ERROR, TAG, "Error while converting cbor to pstat.");
 524             SetResult(otmCtx, OC_STACK_ERROR);
 525             return OC_STACK_DELETE_TRANSACTION;
 526         }
 527         if(false == (TAKE_OWNER & pstat->cm))
 528         {
 529             OIC_LOG(ERROR, TAG, "Device pairing mode enabling owner transfer operations is disabled");
 530             SetResult(otmCtx, OC_STACK_ERROR);
 531             return OC_STACK_DELETE_TRANSACTION;
 532         }
 533         otmCtx->selectedDeviceInfo->pstat = pstat;
 534
 535         //Select operation mode (Currently supported SINGLE_SERVICE_CLIENT_DRIVEN only)
 536         SelectOperationMode(otmCtx->selectedDeviceInfo, &(otmCtx->selectedDeviceInfo->pstat->om));
 537
 538         //Send request : PUT /oic/sec/pstat [{"om":"bx11", .. }]
 539         OCStackResult res = PutUpdateOperationMode(otmCtx);
 540         if (OC_STACK_OK != res)
 541         {
 542             OIC_LOG(ERROR, TAG, "Error while updating operation mode.");
 543             SetResult(otmCtx, res);
 544         }
 545     }
 546     else
 547     {
 548         OIC_LOG_V(WARNING, TAG, "ListMethodsHandler : Client response is incorrect : %d",
 549             clientResponse->result);
 550         SetResult(otmCtx, clientResponse->result);
 551     }
 552
 553     OIC_LOG(DEBUG, TAG, "OUT ListMethodsHandler");
 554 exit:
 555     return  OC_STACK_DELETE_TRANSACTION;
 556 }
 557
 558 /**
 559  * Response handler for update owner uuid request.
 560  *
 561  * @param[in] ctx             ctx value passed to callback from calling function.
 562  * @param[in] UNUSED          handle to an invocation
 563  * @param[in] clientResponse  Response from queries to remote servers.
 564  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 565  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 566  */
 567 static OCStackApplicationResult OwnerUuidUpdateHandler(void *ctx, OCDoHandle UNUSED,
 568                                 OCClientResponse *clientResponse)
 569 {
 570     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 571     VERIFY_NON_NULL(TAG, ctx, WARNING);
 572
 573     OIC_LOG(DEBUG, TAG, "IN OwnerUuidUpdateHandler");
 574     (void)UNUSED;
 575     OCStackResult res = OC_STACK_OK;
 576     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 577
 578     if(OC_STACK_OK == clientResponse->result)
 579     {
 580         if(otmCtx && otmCtx->selectedDeviceInfo)
 581         {
 582             res = SaveOwnerPSK(otmCtx->selectedDeviceInfo);
 583             if(OC_STACK_OK != res)
 584             {
 585                 OIC_LOG(ERROR, TAG, "OwnerUuidUpdateHandler:Failed to owner PSK generation");
 586                 SetResult(otmCtx, res);
 587                 return OC_STACK_DELETE_TRANSACTION;
 588             }
 589
 590             //PUT owner credential to new device according to security spec B.
 591             res = PutOwnerCredential(otmCtx);
 592             if(OC_STACK_OK != res)
 593             {
 594                 OIC_LOG(ERROR, TAG,
 595                         "OwnerUuidUpdateHandler:Failed to send PUT request for onwer credential");
 596                 SetResult(otmCtx, res);
 597                 return OC_STACK_DELETE_TRANSACTION;
 598             }
 599         }
 600     }
 601     else
 602     {
 603         res = clientResponse->result;
 604         OIC_LOG_V(ERROR, TAG, "OwnerUuidHandler : Unexpected result %d", res);
 605         SetResult(otmCtx, res);
 606     }
 607
 608     OIC_LOG(DEBUG, TAG, "OUT OwnerUuidUpdateHandler");
 609
 610 exit:
 611     return  OC_STACK_DELETE_TRANSACTION;
 612 }
 613
 614 /**
 615  * Response handler for update operation mode.
 616  *
 617  * @param[in] ctx             ctx value passed to callback from calling function.
 618  * @param[in] UNUSED          handle to an invocation
 619  * @param[in] clientResponse  Response from queries to remote servers.
 620  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 621  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 622  */
 623 static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
 624                                 OCClientResponse *clientResponse)
 625 {
 626     OIC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
 627
 628     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 629     VERIFY_NON_NULL(TAG, ctx, WARNING);
 630
 631     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 632     (void) UNUSED;
 633     if  (OC_STACK_OK == clientResponse->result)
 634     {
 635         OCStackResult res = OC_STACK_ERROR;
 636         OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
 637         //DTLS Handshake
 638         //Load secret for temporal secure session.
 639         if(g_OTMDatas[selOxm].loadSecretCB)
 640         {
 641             res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
 642             if(OC_STACK_OK != res)
 643             {
 644                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
 645                 SetResult(otmCtx, res);
 646                 return  OC_STACK_DELETE_TRANSACTION;
 647             }
 648         }
 649
 650         //It will be used in handshake event handler
 651         g_otmCtx = otmCtx;
 652
 653         //Try DTLS handshake to generate secure session
 654         if(g_OTMDatas[selOxm].createSecureSessionCB)
 655         {
 656             res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
 657             if(OC_STACK_OK != res)
 658             {
 659                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
 660                 SetResult(otmCtx, res);
 661                 return OC_STACK_DELETE_TRANSACTION;
 662             }
 663         }
 664     }
 665     else
 666     {
 667         OIC_LOG(ERROR, TAG, "Error while update operation mode");
 668         SetResult(otmCtx, clientResponse->result);
 669     }
 670
 671     OIC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
 672
 673 exit:
 674     return  OC_STACK_DELETE_TRANSACTION;
 675 }
 676
 677 /**
 678  * Response handler for update owner crendetial request.
 679  *
 680  * @param[in] ctx             ctx value passed to callback from calling function.
 681  * @param[in] UNUSED          handle to an invocation
 682  * @param[in] clientResponse  Response from queries to remote servers.
 683  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 684  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 685  */
 686 static OCStackApplicationResult OwnerCredentialHandler(void *ctx, OCDoHandle UNUSED,
 687                                 OCClientResponse *clientResponse)
 688 {
 689     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 690     VERIFY_NON_NULL(TAG, ctx, WARNING);
 691
 692     OIC_LOG(DEBUG, TAG, "IN OwnerCredentialHandler");
 693     (void)UNUSED;
 694     OCStackResult res = OC_STACK_OK;
 695     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 696
 697     if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 698     {
 699         if(otmCtx && otmCtx->selectedDeviceInfo)
 700         {
 701             //Close the temporal secure session to verify the owner credential
 702             CAEndpoint_t* endpoint = (CAEndpoint_t *)&otmCtx->selectedDeviceInfo->endpoint;
 703             endpoint->port = otmCtx->selectedDeviceInfo->securePort;
 704             CAResult_t caResult = CACloseDtlsSession(endpoint);
 705             if(CA_STATUS_OK != caResult)
 706             {
 707                 OIC_LOG(ERROR, TAG, "Failed to close DTLS session");
 708                 SetResult(otmCtx, caResult);
 709                 return OC_STACK_DELETE_TRANSACTION;
 710             }
 711
 712             /**
 713              * If we select NULL cipher,
 714              * client will select appropriate cipher suite according to server's cipher-suite list.
 715              */
 716             caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL);
 717             if(CA_STATUS_OK != caResult)
 718             {
 719                 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
 720                 SetResult(otmCtx, caResult);
 721                 return OC_STACK_DELETE_TRANSACTION;
 722             }
 723
 724             /**
 725              * in case of random PIN based OxM,
 726              * revert get_psk_info callback of tinyDTLS to use owner credential.
 727              */
 728             if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 729             {
 730                 OicUuid_t emptyUuid = { .id={0}};
 731                 SetUuidForRandomPinOxm(&emptyUuid);
 732
 733                 if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 734                 {
 735                     OIC_LOG(ERROR, TAG, "Failed to revert DTLS credential handler.");
 736                     SetResult(otmCtx, OC_STACK_INVALID_CALLBACK);
 737                     return OC_STACK_DELETE_TRANSACTION;
 738                 }
 739             }
 740
 741             //PUT /oic/sec/doxm [{ ..., "owned":"TRUE" }]
 742             res = PutOwnershipInformation(otmCtx);
 743             if(OC_STACK_OK != res)
 744             {
 745                 OIC_LOG(ERROR, TAG, "Failed to put ownership information to new device");
 746                 SetResult(otmCtx, res);
 747                 return OC_STACK_DELETE_TRANSACTION;
 748             }
 749         }
 750     }
 751     else
 752     {
 753         res = clientResponse->result;
 754         OIC_LOG_V(ERROR, TAG, "OwnerCredentialHandler : Unexpected result %d", res);
 755         SetResult(otmCtx, res);
 756     }
 757
 758     OIC_LOG(DEBUG, TAG, "OUT OwnerCredentialHandler");
 759
 760 exit:
 761     return  OC_STACK_DELETE_TRANSACTION;
 762 }
 763
 764
 765 /**
 766  * Response handler for update owner information request.
 767  *
 768  * @param[in] ctx             ctx value passed to callback from calling function.
 769  * @param[in] UNUSED          handle to an invocation
 770  * @param[in] clientResponse  Response from queries to remote servers.
 771  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 772  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 773  */
 774 static OCStackApplicationResult OwnershipInformationHandler(void *ctx, OCDoHandle UNUSED,
 775                                 OCClientResponse *clientResponse)
 776 {
 777     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 778     VERIFY_NON_NULL(TAG, ctx, WARNING);
 779
 780     OIC_LOG(DEBUG, TAG, "IN OwnershipInformationHandler");
 781     (void)UNUSED;
 782     OCStackResult res = OC_STACK_OK;
 783     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 784
 785     if(OC_STACK_OK == clientResponse->result)
 786     {
 787         if(otmCtx && otmCtx->selectedDeviceInfo)
 788         {
 789             OIC_LOG(INFO, TAG, "Ownership transfer was successfully completed.");
 790             OIC_LOG(INFO, TAG, "Set Ready for provisioning state .");
 791
 792             res = PutProvisioningStatus(otmCtx);
 793             if(OC_STACK_OK != res)
 794             {
 795                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 796                 SetResult(otmCtx, res);
 797             }
 798         }
 799     }
 800     else
 801     {
 802         res = clientResponse->result;
 803         OIC_LOG_V(ERROR, TAG, "OwnershipInformationHandler : Unexpected result %d", res);
 804         SetResult(otmCtx, res);
 805     }
 806
 807     OIC_LOG(DEBUG, TAG, "OUT OwnershipInformationHandler");
 808
 809 exit:
 810     return  OC_STACK_DELETE_TRANSACTION;
 811 }
 812
 813 /**
 814  * Response handler of update provisioning status.
 815  *
 816  * @param[in] ctx             ctx value passed to callback from calling function.
 817  * @param[in] UNUSED          handle to an invocation
 818  * @param[in] clientResponse  Response from queries to remote servers.
 819  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 820  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 821  */
 822 static OCStackApplicationResult ProvisioningStatusHandler(void *ctx, OCDoHandle UNUSED,
 823                                                        OCClientResponse *clientResponse)
 824 {
 825     OIC_LOG_V(INFO, TAG, "IN ProvisioningStatusHandler.");
 826
 827     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 828     VERIFY_NON_NULL(TAG, ctx, ERROR);
 829
 830     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 831     (void)UNUSED;
 832     OCStackResult res = OC_STACK_OK;
 833
 834     if(OC_STACK_OK == clientResponse->result)
 835     {
 836         if(otmCtx && otmCtx->selectedDeviceInfo)
 837         {
 838             OIC_LOG(INFO, TAG, "Device state is in Ready for Provisionig.");
 839
 840             res = PutNormalOperationStatus(otmCtx);
 841             if(OC_STACK_OK != res)
 842             {
 843                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 844                 SetResult(otmCtx, res);
 845             }
 846         }
 847     }
 848     else
 849     {
 850         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 851                             clientResponse->result);
 852         SetResult(otmCtx, clientResponse->result);
 853     }
 854
 855 exit:
 856     OIC_LOG_V(INFO, TAG, "OUT ProvisioningStatusHandler.");
 857     return OC_STACK_DELETE_TRANSACTION;
 858 }
 859
 860 /**
 861  * Response handler of update provisioning status to Ready for Normal..
 862  *
 863  * @param[in] ctx             ctx value passed to callback from calling function.
 864  * @param[in] UNUSED          handle to an invocation
 865  * @param[in] clientResponse  Response from queries to remote servers.
 866  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 867  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 868  */
 869 static OCStackApplicationResult ReadyForNomalStatusHandler(void *ctx, OCDoHandle UNUSED,
 870                                                        OCClientResponse *clientResponse)
 871 {
 872     OIC_LOG_V(INFO, TAG, "IN ReadyForNomalStatusHandler.");
 873
 874     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 875     VERIFY_NON_NULL(TAG, ctx, ERROR);
 876
 877     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 878     (void)UNUSED;
 879
 880     if (OC_STACK_OK == clientResponse->result)
 881     {
 882         OIC_LOG(INFO, TAG, "Device state is in Ready for Normal Operation.");
 883         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
 884          if (OC_STACK_OK == res)
 885          {
 886                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
 887                 SetResult(otmCtx, OC_STACK_OK);
 888                 return OC_STACK_DELETE_TRANSACTION;
 889          }
 890           else
 891          {
 892               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
 893          }
 894     }
 895     else
 896     {
 897         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 898                             clientResponse->result);
 899         SetResult(otmCtx, clientResponse->result);
 900     }
 901
 902 exit:
 903     OIC_LOG_V(INFO, TAG, "OUT ReadyForNomalStatusHandler.");
 904     return OC_STACK_DELETE_TRANSACTION;
 905 }
 906
 907 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx)
 908 {
 909     OIC_LOG(DEBUG, TAG, "IN PutOwnerCredential");
 910
 911     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 912     {
 913         OIC_LOG(ERROR, TAG, "Invalid parameters");
 914         return OC_STACK_INVALID_PARAM;
 915     }
 916
 917     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 918     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 919
 920     if(!PMGenerateQuery(true,
 921                         deviceInfo->endpoint.addr, deviceInfo->securePort,
 922                         deviceInfo->connType,
 923                         query, sizeof(query), OIC_RSRC_CRED_URI))
 924     {
 925         OIC_LOG(ERROR, TAG, "PutOwnerCredential : Failed to generate query");
 926         return OC_STACK_ERROR;
 927     }
 928     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 929     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 930     if(!secPayload)
 931     {
 932         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 933         return OC_STACK_NO_MEMORY;
 934     }
 935
 936     //Generate owner credential for new device
 937     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 938     const OicSecCred_t* ownerCredential = GetCredResourceData(&(deviceInfo->doxm->deviceID));
 939     if(!ownerCredential)
 940     {
 941         OIC_LOG(ERROR, TAG, "Can not find OwnerPSK.");
 942         return OC_STACK_NO_RESOURCE;
 943     }
 944
 945     OicUuid_t credSubjectId = {.id={0}};
 946     if(OC_STACK_OK == GetDoxmDeviceID(&credSubjectId))
 947     {
 948         OicSecCred_t newCredential;
 949         memcpy(&newCredential, ownerCredential, sizeof(OicSecCred_t));
 950         newCredential.next = NULL;
 951
 952         //Set subject ID as PT's ID
 953         memcpy(&(newCredential.subject), &credSubjectId, sizeof(OicUuid_t));
 954
 955         //Fill private data as empty string
 956         newCredential.privateData.data = NULL;
 957         newCredential.privateData.len = 0;
 958 #ifdef __WITH_X509__
 959         newCredential.publicData.data = NULL;
 960         newCredential.publicData.len = 0;
 961 #endif
 962
 963         //Send owner credential to new device : PUT /oic/sec/cred [ owner credential ]
 964         if (OC_STACK_OK != CredToCBORPayload(&newCredential, &secPayload->securityData, &secPayload->payloadSize))
 965         {
 966             OICFree(secPayload);
 967             OIC_LOG(ERROR, TAG, "Error while converting bin to cbor.");
 968             return OC_STACK_ERROR;
 969         }
 970         OIC_LOG(DEBUG, TAG, "Cred Payload:");
 971         OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 972
 973         OCCallbackData cbData;
 974         cbData.cb = &OwnerCredentialHandler;
 975         cbData.context = (void *)otmCtx;
 976         cbData.cd = NULL;
 977         OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query,
 978                                          &deviceInfo->endpoint, (OCPayload*)secPayload,
 979                                          deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
 980         if (res != OC_STACK_OK)
 981         {
 982             OIC_LOG(ERROR, TAG, "OCStack resource error");
 983         }
 984     }
 985     else
 986     {
 987         OIC_LOG(ERROR, TAG, "Failed to read DOXM device ID.");
 988         return OC_STACK_NO_RESOURCE;
 989     }
 990
 991     OIC_LOG(DEBUG, TAG, "OUT PutOwnerCredential");
 992
 993     return OC_STACK_OK;
 994 }
 995
 996 static OCStackResult PutOwnerTransferModeToResource(OTMContext_t* otmCtx)
 997 {
 998     OIC_LOG(DEBUG, TAG, "IN PutOwnerTransferModeToResource");
 999
1000     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1001     {
1002         OIC_LOG(ERROR, TAG, "Invalid parameters");
1003         return OC_STACK_INVALID_PARAM;
1004     }
1005
1006     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1007     OicSecOxm_t selectedOxm = deviceInfo->doxm->oxmSel;
1008     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1009
1010     if(!PMGenerateQuery(false,
1011                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1012                         deviceInfo->connType,
1013                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1014     {
1015         OIC_LOG(ERROR, TAG, "PutOwnerTransferModeToResource : Failed to generate query");
1016         return OC_STACK_ERROR;
1017     }
1018     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1019     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1020     if(!secPayload)
1021     {
1022         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1023         return OC_STACK_NO_MEMORY;
1024     }
1025     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1026     OCStackResult res = g_OTMDatas[selectedOxm].createSelectOxmPayloadCB(otmCtx,
1027             &secPayload->securityData, &secPayload->payloadSize);
1028     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1029     {
1030         OCPayloadDestroy((OCPayload *)secPayload);
1031         OIC_LOG(ERROR, TAG, "Error while converting bin to cbor");
1032         return OC_STACK_ERROR;
1033     }
1034
1035     OCCallbackData cbData;
1036     cbData.cb = &OwnerTransferModeHandler;
1037     cbData.context = (void *)otmCtx;
1038     cbData.cd = NULL;
1039     res = OCDoResource(NULL, OC_REST_PUT, query,
1040                        &deviceInfo->endpoint, (OCPayload *)secPayload,
1041                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1042     if (res != OC_STACK_OK)
1043     {
1044         OIC_LOG(ERROR, TAG, "OCStack resource error");
1045     }
1046
1047     OIC_LOG(DEBUG, TAG, "OUT PutOwnerTransferModeToResource");
1048
1049     return res;
1050 }
1051
1052 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx)
1053 {
1054     OIC_LOG(DEBUG, TAG, "IN GetProvisioningStatusResource");
1055
1056     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1057     {
1058         OIC_LOG(ERROR, TAG, "Invailed parameters");
1059         return OC_STACK_INVALID_PARAM;
1060     }
1061
1062     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1063     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1064     if(!PMGenerateQuery(false,
1065                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1066                         deviceInfo->connType,
1067                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1068     {
1069         OIC_LOG(ERROR, TAG, "GetProvisioningStatusResource : Failed to generate query");
1070         return OC_STACK_ERROR;
1071     }
1072     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1073
1074     OCCallbackData cbData;
1075     cbData.cb = &ListMethodsHandler;
1076     cbData.context = (void *)otmCtx;
1077     cbData.cd = NULL;
1078     OCStackResult res = OCDoResource(NULL, OC_REST_GET, query, NULL, NULL,
1079                                      deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1080     if (res != OC_STACK_OK)
1081     {
1082         OIC_LOG(ERROR, TAG, "OCStack resource error");
1083     }
1084
1085     OIC_LOG(DEBUG, TAG, "OUT GetProvisioningStatusResource");
1086
1087     return res;
1088 }
1089
1090 static OCStackResult PutOwnerUuid(OTMContext_t* otmCtx)
1091 {
1092     OIC_LOG(DEBUG, TAG, "IN PutOwnerUuid");
1093
1094     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1095     {
1096         OIC_LOG(ERROR, TAG, "Invailed parameters");
1097         return OC_STACK_INVALID_PARAM;
1098     }
1099
1100     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1101     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1102     if(!PMGenerateQuery(true,
1103                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1104                         deviceInfo->connType,
1105                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1106     {
1107         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1108         return OC_STACK_ERROR;
1109     }
1110     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1111
1112     //PUT PT's uuid to new device
1113     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1114     if(!secPayload)
1115     {
1116         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1117         return OC_STACK_NO_MEMORY;
1118     }
1119     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1120     OCStackResult res =  g_OTMDatas[deviceInfo->doxm->oxmSel].createOwnerTransferPayloadCB(
1121             otmCtx, &secPayload->securityData, &secPayload->payloadSize);
1122     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1123     {
1124         OCPayloadDestroy((OCPayload *)secPayload);
1125         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to cbor.");
1126         return OC_STACK_INVALID_PARAM;
1127     }
1128     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1129
1130     OCCallbackData cbData;
1131     cbData.cb = &OwnerUuidUpdateHandler;
1132     cbData.context = (void *)otmCtx;
1133     cbData.cd = NULL;
1134
1135     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload *)secPayload,
1136             deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1137     if (res != OC_STACK_OK)
1138     {
1139         OIC_LOG(ERROR, TAG, "OCStack resource error");
1140     }
1141
1142     OIC_LOG(DEBUG, TAG, "OUT PutOwnerUuid");
1143
1144     return res;
1145 }
1146
1147 static OCStackResult PutOwnershipInformation(OTMContext_t* otmCtx)
1148 {
1149     OIC_LOG(DEBUG, TAG, "IN PutOwnershipInformation");
1150
1151     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1152     {
1153         OIC_LOG(ERROR, TAG, "Invailed parameters");
1154         return OC_STACK_INVALID_PARAM;
1155     }
1156
1157     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1158     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1159     if(!PMGenerateQuery(true,
1160                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1161                         deviceInfo->connType,
1162                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1163     {
1164         OIC_LOG(ERROR, TAG, "PutOwnershipInformation : Failed to generate query");
1165         return OC_STACK_ERROR;
1166     }
1167     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1168
1169     //OwnershipInformationHandler
1170     OCSecurityPayload *secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1171     if (!secPayload)
1172     {
1173         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1174         return OC_STACK_NO_MEMORY;
1175     }
1176
1177     otmCtx->selectedDeviceInfo->doxm->owned = true;
1178
1179     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1180     OCStackResult res = DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm,
1181             &secPayload->securityData, &secPayload->payloadSize);
1182     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1183     {
1184         OCPayloadDestroy((OCPayload *)secPayload);
1185         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1186         return OC_STACK_INVALID_PARAM;
1187     }
1188
1189     OCCallbackData cbData;
1190     cbData.cb = &OwnershipInformationHandler;
1191     cbData.context = (void *)otmCtx;
1192     cbData.cd = NULL;
1193
1194     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1195                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1196     if (res != OC_STACK_OK)
1197     {
1198         OIC_LOG(ERROR, TAG, "OCStack resource error");
1199     }
1200
1201     OIC_LOG(DEBUG, TAG, "OUT PutOwnershipInformation");
1202
1203     return res;
1204 }
1205
1206 static OCStackResult PutUpdateOperationMode(OTMContext_t* otmCtx)
1207 {
1208     OIC_LOG(DEBUG, TAG, "IN PutUpdateOperationMode");
1209
1210     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1211     {
1212         return OC_STACK_INVALID_PARAM;
1213     }
1214
1215     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1216     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1217     if(!PMGenerateQuery(false,
1218                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1219                         deviceInfo->connType,
1220                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1221     {
1222         OIC_LOG(ERROR, TAG, "PutUpdateOperationMode : Failed to generate query");
1223         return OC_STACK_ERROR;
1224     }
1225     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1226
1227     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1228     if(!secPayload)
1229     {
1230         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1231         return OC_STACK_NO_MEMORY;
1232     }
1233     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1234     OCStackResult res = PstatToCBORPayload(deviceInfo->pstat, &secPayload->securityData,
1235                                            &secPayload->payloadSize);
1236    if (OC_STACK_OK != res)
1237     {
1238         OCPayloadDestroy((OCPayload *)secPayload);
1239         OIC_LOG(ERROR, TAG, "Error while converting pstat to cbor.");
1240         return OC_STACK_INVALID_PARAM;
1241     }
1242
1243     OCCallbackData cbData;
1244     cbData.cb = &OperationModeUpdateHandler;
1245     cbData.context = (void *)otmCtx;
1246     cbData.cd = NULL;
1247     res = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload *)secPayload,
1248                        deviceInfo->connType, OC_LOW_QOS, &cbData, NULL, 0);
1249     if (res != OC_STACK_OK)
1250     {
1251         OIC_LOG(ERROR, TAG, "OCStack resource error");
1252     }
1253
1254     OIC_LOG(DEBUG, TAG, "OUT PutUpdateOperationMode");
1255
1256     return res;
1257 }
1258
1259 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice)
1260 {
1261     OIC_LOG(INFO, TAG, "IN StartOwnershipTransfer");
1262     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1263     otmCtx->selectedDeviceInfo = selectedDevice;
1264
1265     //Set to the lowest level OxM, and then find more higher level OxM.
1266     OCStackResult res = SelectProvisioningMethod(selectedDevice->doxm->oxm,
1267                                                  selectedDevice->doxm->oxmLen,
1268                                                  &selectedDevice->doxm->oxmSel);
1269     if(OC_STACK_OK != res)
1270     {
1271         OIC_LOG(ERROR, TAG, "Failed to select the provisioning method");
1272         SetResult(otmCtx, res);
1273         return res;
1274     }
1275     OIC_LOG_V(DEBUG, TAG, "Selected provisoning method = %d", selectedDevice->doxm->oxmSel);
1276
1277     //Send Req: PUT /oic/sec/doxm [{..."OxmSel" :g_OTMDatas[Index of Selected OxM].OXMString,...}]
1278     res = PutOwnerTransferModeToResource(otmCtx);
1279     if(OC_STACK_OK != res)
1280     {
1281         OIC_LOG(WARNING, TAG, "Failed to select the provisioning method");
1282         SetResult(otmCtx, res);
1283         return res;
1284     }
1285
1286     //Register DTLS event handler to catch the dtls event while handshake
1287     if(CA_STATUS_OK != CARegisterDTLSHandshakeCallback(DTLSHandshakeCB))
1288     {
1289         OIC_LOG(WARNING, TAG, "StartOwnershipTransfer : Failed to register DTLS handshake callback.");
1290     }
1291
1292     OIC_LOG(INFO, TAG, "OUT StartOwnershipTransfer");
1293
1294     return res;
1295
1296 }
1297
1298 OCStackResult OTMSetOwnershipTransferCallbackData(OicSecOxm_t oxmType, OTMCallbackData_t* data)
1299 {
1300     OIC_LOG(DEBUG, TAG, "IN OTMSetOwnerTransferCallbackData");
1301
1302     if(!data)
1303     {
1304         OIC_LOG(ERROR, TAG, "OTMSetOwnershipTransferCallbackData : Invalid parameters");
1305         return OC_STACK_INVALID_PARAM;
1306     }
1307     if(oxmType >= OIC_OXM_COUNT)
1308     {
1309         OIC_LOG(INFO, TAG, "Unknow ownership transfer method");
1310         return OC_STACK_INVALID_PARAM;
1311     }
1312
1313     g_OTMDatas[oxmType].loadSecretCB= data->loadSecretCB;
1314     g_OTMDatas[oxmType].createSecureSessionCB = data->createSecureSessionCB;
1315     g_OTMDatas[oxmType].createSelectOxmPayloadCB = data->createSelectOxmPayloadCB;
1316     g_OTMDatas[oxmType].createOwnerTransferPayloadCB = data->createOwnerTransferPayloadCB;
1317
1318     OIC_LOG(DEBUG, TAG, "OUT OTMSetOwnerTransferCallbackData");
1319
1320     return OC_STACK_OK;
1321 }
1322
1323 /**
1324  * NOTE : Unowned discovery should be done before performing OTMDoOwnershipTransfer
1325  */
1326 OCStackResult OTMDoOwnershipTransfer(void* ctx,
1327                                      OCProvisionDev_t *selectedDevicelist,
1328                                      OCProvisionResultCB resultCallback)
1329 {
1330     OIC_LOG(DEBUG, TAG, "IN OTMDoOwnershipTransfer");
1331
1332     if (NULL == selectedDevicelist)
1333     {
1334         return OC_STACK_INVALID_PARAM;
1335     }
1336     if (NULL == resultCallback)
1337     {
1338         return OC_STACK_INVALID_CALLBACK;
1339     }
1340
1341     OTMContext_t* otmCtx = (OTMContext_t*)OICCalloc(1,sizeof(OTMContext_t));
1342     if(!otmCtx)
1343     {
1344         OIC_LOG(ERROR, TAG, "Failed to create OTM Context");
1345         return OC_STACK_NO_MEMORY;
1346     }
1347     otmCtx->ctxResultCallback = resultCallback;
1348     otmCtx->ctxHasError = false;
1349     otmCtx->userCtx = ctx;
1350     OCProvisionDev_t* pCurDev = selectedDevicelist;
1351
1352     //Counting number of selected devices.
1353     otmCtx->ctxResultArraySize = 0;
1354     while(NULL != pCurDev)
1355     {
1356         otmCtx->ctxResultArraySize++;
1357         pCurDev = pCurDev->next;
1358     }
1359
1360     otmCtx->ctxResultArray =
1361         (OCProvisionResult_t*)OICCalloc(otmCtx->ctxResultArraySize, sizeof(OCProvisionResult_t));
1362     if(NULL == otmCtx->ctxResultArray)
1363     {
1364         OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Failed to memory allocation");
1365         OICFree(otmCtx);
1366         return OC_STACK_NO_MEMORY;
1367     }
1368     pCurDev = selectedDevicelist;
1369
1370     OCStackResult res = OC_STACK_OK;
1371     //Fill the device UUID for result array.
1372     for(size_t devIdx = 0; devIdx < otmCtx->ctxResultArraySize; devIdx++)
1373     {
1374         //Checking duplication of Device ID.
1375         bool isDuplicate = true;
1376         res = PDMIsDuplicateDevice(&pCurDev->doxm->deviceID, &isDuplicate);
1377         if (OC_STACK_OK != res)
1378         {
1379             goto error;
1380         }
1381         if (isDuplicate)
1382         {
1383             OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Device ID is duplicated");
1384             res = OC_STACK_INVALID_PARAM;
1385             goto error;
1386         }
1387         memcpy(otmCtx->ctxResultArray[devIdx].deviceId.id,
1388                pCurDev->doxm->deviceID.id,
1389                UUID_LENGTH);
1390         otmCtx->ctxResultArray[devIdx].res = OC_STACK_CONTINUE;
1391         pCurDev = pCurDev->next;
1392     }
1393
1394     StartOwnershipTransfer(otmCtx, selectedDevicelist);
1395
1396     OIC_LOG(DEBUG, TAG, "OUT OTMDoOwnershipTransfer");
1397     return OC_STACK_OK;
1398
1399 error:
1400     OICFree(otmCtx->ctxResultArray);
1401     OICFree(otmCtx);
1402     return res;
1403 }
1404
1405 OCStackResult PutProvisioningStatus(OTMContext_t* otmCtx)
1406 {
1407     OIC_LOG(INFO, TAG, "IN PutProvisioningStatus");
1408
1409     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1410     {
1411         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1412         return OC_STACK_INVALID_PARAM;
1413     }
1414
1415     //Change the TAKE_OWNER bit of CM to 0.
1416     otmCtx->selectedDeviceInfo->pstat->cm &= (~TAKE_OWNER);
1417
1418     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1419     if (!secPayload)
1420     {
1421         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1422         return OC_STACK_NO_MEMORY;
1423     }
1424     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1425     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1426             &secPayload->securityData, &secPayload->payloadSize))
1427     {
1428         OCPayloadDestroy((OCPayload *)secPayload);
1429         return OC_STACK_INVALID_JSON;
1430     }
1431     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1432     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1433
1434     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1435     if(!PMGenerateQuery(true,
1436                         otmCtx->selectedDeviceInfo->endpoint.addr,
1437                         otmCtx->selectedDeviceInfo->securePort,
1438                         otmCtx->selectedDeviceInfo->connType,
1439                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1440     {
1441         OIC_LOG(ERROR, TAG, "PutProvisioningStatus : Failed to generate query");
1442         return OC_STACK_ERROR;
1443     }
1444     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1445
1446     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1447     cbData.cb = &ProvisioningStatusHandler;
1448     cbData.context = (void*)otmCtx;
1449     cbData.cd = NULL;
1450     OCStackResult ret = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1451             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1452     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1453     if (ret != OC_STACK_OK)
1454     {
1455         OIC_LOG(ERROR, TAG, "OCStack resource error");
1456     }
1457
1458     OIC_LOG(INFO, TAG, "OUT PutProvisioningStatus");
1459
1460     return ret;
1461 }
1462
1463 OCStackResult PutNormalOperationStatus(OTMContext_t* otmCtx)
1464 {
1465     OIC_LOG(INFO, TAG, "IN PutNormalOperationStatus");
1466
1467     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1468     {
1469         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1470         return OC_STACK_INVALID_PARAM;
1471     }
1472
1473     //Set isop to true.
1474     otmCtx->selectedDeviceInfo->pstat->isOp = true;
1475
1476     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1477     if (!secPayload)
1478     {
1479         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1480         return OC_STACK_NO_MEMORY;
1481     }
1482     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1483     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1484             &secPayload->securityData, &secPayload->payloadSize))
1485     {
1486         OCPayloadDestroy((OCPayload *)secPayload);
1487         return OC_STACK_INVALID_JSON;
1488     }
1489     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1490     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1491
1492     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1493     if(!PMGenerateQuery(true,
1494                         otmCtx->selectedDeviceInfo->endpoint.addr,
1495                         otmCtx->selectedDeviceInfo->securePort,
1496                         otmCtx->selectedDeviceInfo->connType,
1497                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1498     {
1499         OIC_LOG(ERROR, TAG, "PutNormalOperationStatus : Failed to generate query");
1500         return OC_STACK_ERROR;
1501     }
1502     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1503
1504     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1505     cbData.cb = &ReadyForNomalStatusHandler;
1506     cbData.context = (void*)otmCtx;
1507     cbData.cd = NULL;
1508     OCStackResult ret = OCDoResource(NULL, OC_REST_PUT, query, 0, (OCPayload*)secPayload,
1509             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1510     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1511     if (ret != OC_STACK_OK)
1512     {
1513         OIC_LOG(ERROR, TAG, "OCStack resource error");
1514     }
1515
1516     OIC_LOG(INFO, TAG, "OUT PutNormalOperationStatus");
1517
1518     return ret;
1519 }