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 #ifdef HAVE_TIME_H
  34 #include <time.h>
  35 #endif
  36 #ifdef HAVE_UNISTD_H
  37 #include <unistd.h>
  38 #endif
  39 #ifdef HAVE_SYS_TIME_H
  40 #include <sys/time.h>
  41 #endif
  42 #include <stdbool.h>
  43 #include <string.h>
  44
  45 #include "logger.h"
  46 #include "oic_malloc.h"
  47 #include "oic_string.h"
  48 #include "cacommon.h"
  49 #include "cainterface.h"
  50 #include "base64.h"
  51 #include "cJSON.h"
  52 #include "global.h"
  53
  54 #include "srmresourcestrings.h"
  55 #include "doxmresource.h"
  56 #include "pstatresource.h"
  57 #include "credresource.h"
  58 #include "aclresource.h"
  59 #include "ownershiptransfermanager.h"
  60 #include "securevirtualresourcetypes.h"
  61 #include "oxmjustworks.h"
  62 #include "pmtypes.h"
  63 #include "pmutility.h"
  64 #include "srmutility.h"
  65 #include "provisioningdatabasemanager.h"
  66 #include "oxmrandompin.h"
  67 #include "ocpayload.h"
  68 #include "payload_logging.h"
  69
  70 #define TAG "OTM"
  71
  72 /**
  73  * Array to store the callbacks for each owner transfer method.
  74  */
  75 static OTMCallbackData_t g_OTMDatas[OIC_OXM_COUNT];
  76
  77 /**
  78  * Variables for pointing the OTMContext to be used in the DTLS handshake result callback.
  79  */
  80 static OTMContext_t* g_otmCtx = NULL;
  81
  82 /**
  83  * Function to select appropriate  provisioning method.
  84  *
  85  * @param[in] supportedMethods   Array of supported methods
  86  * @param[in] numberOfMethods   number of supported methods
  87  * @param[out]  selectedMethod         Selected methods
  88  * @return  OC_STACK_OK on success
  89  */
  90 static OCStackResult SelectProvisioningMethod(const OicSecOxm_t *supportedMethods,
  91         size_t numberOfMethods, OicSecOxm_t *selectedMethod)
  92 {
  93     OIC_LOG(DEBUG, TAG, "IN SelectProvisioningMethod");
  94
  95     if(numberOfMethods == 0 || !supportedMethods)
  96     {
  97         OIC_LOG(WARNING, TAG, "Could not find a supported OxM.");
  98         return OC_STACK_ERROR;
  99     }
 100
 101     *selectedMethod  = supportedMethods[0];
 102     for(size_t i = 0; i < numberOfMethods; i++)
 103     {
 104         if(*selectedMethod < supportedMethods[i])
 105         {
 106             *selectedMethod =  supportedMethods[i];
 107         }
 108     }
 109
 110     return OC_STACK_OK;
 111 }
 112
 113 /**
 114  * Function to select operation mode.This function will return most secure common operation mode.
 115  *
 116  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 117  * @param[out]   selectedMode   selected operation mode
 118  * @return  OC_STACK_OK on success
 119  */
 120 static void SelectOperationMode(const OCProvisionDev_t *selectedDeviceInfo,
 121                                 OicSecDpom_t *selectedMode)
 122 {
 123     OIC_LOG(DEBUG, TAG, "IN SelectOperationMode");
 124     *selectedMode = selectedDeviceInfo->pstat->sm[0];
 125     OIC_LOG_V(DEBUG, TAG, "Selected Operation Mode = %d", *selectedMode);
 126 }
 127
 128 /**
 129  * Function to start ownership transfer.
 130  * This function will send the first request for provisioning,
 131  * The next request message is sent from the response handler for this request.
 132  *
 133  * @param[in] ctx   context value passed to callback from calling function.
 134  * @param[in] selectedDevice   selected device information to performing provisioning.
 135  * @return  OC_STACK_OK on success
 136  */
 137 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice);
 138
 139 /**
 140  * Function to update owner transfer mode
 141  *
 142  * @param[in]  otmCtx  Context value of ownership transfer.
 143  * @return  OC_STACK_OK on success
 144  */
 145 static OCStackResult PostOwnerTransferModeToResource(OTMContext_t* otmCtx);
 146
 147 /**
 148  * Function to send request to resource to get its pstat resource information.
 149  *
 150  * @param[in]  otmCtx  Context value of ownership transfer.
 151  * @return  OC_STACK_OK on success
 152  */
 153 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx);
 154
 155
 156 /**
 157  * Function to send  uuid of owner device to new device.
 158  * This function would update 'owner of doxm' as UUID for provisioning tool.
 159  *
 160  * @param[in]  otmCtx  Context value of ownership transfer.
 161  * @return  OC_STACK_OK on success
 162  */
 163 static OCStackResult PostOwnerUuid(OTMContext_t* otmCtx);
 164
 165 /**
 166  * Function to update the operation mode. As per the spec. Operation mode in client driven
 167  * single service provisioning it will be updated to 0x3
 168  *
 169  * @param[in]  otmCtx  Context value of ownership transfer.
 170  * @return  OC_STACK_OK on success
 171  */
 172 static OCStackResult PostUpdateOperationMode(OTMContext_t* otmCtx);
 173
 174 /**
 175  * Function to update the owner credential to new device
 176  *
 177  * @param[in]  otmCtx  Context value of ownership transfer.
 178  * @param[in] selectedOperationMode selected operation mode
 179  * @return  OC_STACK_OK on success
 180  */
 181 static OCStackResult PostOwnerCredential(OTMContext_t* otmCtx);
 182
 183 /**
 184  * Function to send ownerShip info.
 185  * This function would update 'owned of doxm' as true.
 186  *
 187  * @param[in]  otmCtx  Context value of ownership transfer.
 188  * @return  OC_STACK_OK on success
 189  */
 190 static OCStackResult PostOwnershipInformation(OTMContext_t* otmCtx);
 191
 192 /**
 193  * Function to update pstat as Ready for provisioning.
 194  * This function would update 'cm' from bx0000,0010 to bx0000,0000.
 195  *
 196  * @param[in] ctx   context value passed to callback from calling function.
 197  * @param[in] selectedDevice   selected device information to performing provisioning.
 198  * @return  OC_STACK_OK on success
 199  */
 200 static OCStackResult PostProvisioningStatus(OTMContext_t* otmCtx);
 201
 202 /**
 203  * Function to update pstat as Ready for Normal Operation.
 204  * This function would update 'isop' from false to true.
 205  *
 206  * @param[in] ctx   context value passed to callback from calling function.
 207  * @param[in] selectedDevice   selected device information to performing provisioning.
 208  * @return  OC_STACK_OK on success
 209  */
 210 static OCStackResult PostNormalOperationStatus(OTMContext_t* otmCtx);
 211
 212 static bool IsComplete(OTMContext_t* otmCtx)
 213 {
 214     for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 215     {
 216         if(OC_STACK_CONTINUE == otmCtx->ctxResultArray[i].res)
 217         {
 218             return false;
 219         }
 220     }
 221
 222     return true;
 223 }
 224
 225 /**
 226  * Function to save the result of provisioning.
 227  *
 228  * @param[in,out] otmCtx   Context value of ownership transfer.
 229  * @param[in] res   result of provisioning
 230  */
 231 static void SetResult(OTMContext_t* otmCtx, const OCStackResult res)
 232 {
 233     OIC_LOG_V(DEBUG, TAG, "IN SetResult : %d ", res);
 234
 235     if(!otmCtx)
 236     {
 237         OIC_LOG(WARNING, TAG, "OTMContext is NULL");
 238         return;
 239     }
 240
 241     if(otmCtx->selectedDeviceInfo)
 242     {
 243         //Revert psk_info callback and new deivce uuid in case of random PIN OxM
 244         if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 245         {
 246             if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 247             {
 248                 OIC_LOG(WARNING, TAG, "Failed to revert  is DTLS credential handler.");
 249             }
 250             OicUuid_t emptyUuid = { .id={0}};
 251             SetUuidForRandomPinOxm(&emptyUuid);
 252         }
 253
 254         for(size_t i = 0; i < otmCtx->ctxResultArraySize; i++)
 255         {
 256             if(memcmp(otmCtx->selectedDeviceInfo->doxm->deviceID.id,
 257                       otmCtx->ctxResultArray[i].deviceId.id, UUID_LENGTH) == 0)
 258             {
 259                 otmCtx->ctxResultArray[i].res = res;
 260                 if(OC_STACK_OK != res)
 261                 {
 262                     otmCtx->ctxHasError = true;
 263                 }
 264             }
 265         }
 266
 267         g_otmCtx = NULL;
 268
 269         //If all request is completed, invoke the user callback.
 270         if(IsComplete(otmCtx))
 271         {
 272             otmCtx->ctxResultCallback(otmCtx->userCtx, otmCtx->ctxResultArraySize,
 273                                        otmCtx->ctxResultArray, otmCtx->ctxHasError);
 274             OICFree(otmCtx->ctxResultArray);
 275             OICFree(otmCtx);
 276         }
 277         else
 278         {
 279             if(OC_STACK_OK != StartOwnershipTransfer(otmCtx,
 280                                                      otmCtx->selectedDeviceInfo->next))
 281             {
 282                 OIC_LOG(ERROR, TAG, "Failed to StartOwnershipTransfer");
 283             }
 284         }
 285     }
 286
 287     OIC_LOG(DEBUG, TAG, "OUT SetResult");
 288 }
 289
 290 /**
 291  * Function to handle the handshake result in OTM.
 292  * This function will be invoked after DTLS handshake
 293  * @param   endPoint  [IN] The remote endpoint.
 294  * @param   errorInfo [IN] Error information from the endpoint.
 295  * @return  NONE
 296  */
 297 void DTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
 298 {
 299     if(NULL != g_otmCtx && NULL != g_otmCtx->selectedDeviceInfo &&
 300        NULL != endpoint && NULL != info)
 301     {
 302         OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
 303                  endpoint->addr, endpoint->port, info->result);
 304
 305         OicSecDoxm_t* newDevDoxm = g_otmCtx->selectedDeviceInfo->doxm;
 306
 307         if(NULL != newDevDoxm)
 308         {
 309             OicUuid_t emptyUuid = {.id={0}};
 310
 311             //Make sure the address matches.
 312             if(strncmp(g_otmCtx->selectedDeviceInfo->endpoint.addr,
 313                endpoint->addr,
 314                sizeof(endpoint->addr)) == 0 &&
 315                g_otmCtx->selectedDeviceInfo->securePort == endpoint->port)
 316             {
 317                 OCStackResult res = OC_STACK_ERROR;
 318
 319                 //If temporal secure sesstion established successfully
 320                 if(CA_STATUS_OK == info->result &&
 321                    false == newDevDoxm->owned &&
 322                    memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) == 0)
 323                 {
 324                     //Send request : POST /oic/sec/doxm [{... , "devowner":"PT's UUID"}]
 325                     res = PostOwnerUuid(g_otmCtx);
 326                     if(OC_STACK_OK != res)
 327                     {
 328                         OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to send owner information");
 329                         SetResult(g_otmCtx, res);
 330                     }
 331                 }
 332                 //In case of authentication failure
 333                 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
 334                 {
 335                     //in case of error from owner credential
 336                     if(memcmp(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t)) != 0 &&
 337                         true == newDevDoxm->owned)
 338                     {
 339                         OIC_LOG(ERROR, TAG, "The owner credential may incorrect.");
 340
 341                         if(OC_STACK_OK != RemoveCredential(&(newDevDoxm->deviceID)))
 342                         {
 343                             OIC_LOG(WARNING, TAG, "Failed to remove the invaild owner credential");
 344                         }
 345                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 346                     }
 347                     //in case of error from wrong PIN, re-start the ownership transfer
 348                     else if(OIC_RANDOM_DEVICE_PIN == newDevDoxm->oxmSel)
 349                     {
 350                         OIC_LOG(ERROR, TAG, "The PIN number may incorrect.");
 351
 352                         memcpy(&(newDevDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
 353                         newDevDoxm->owned = false;
 354                         g_otmCtx->attemptCnt++;
 355
 356                         if(WRONG_PIN_MAX_ATTEMP > g_otmCtx->attemptCnt)
 357                         {
 358                             res = StartOwnershipTransfer(g_otmCtx, g_otmCtx->selectedDeviceInfo);
 359                             if(OC_STACK_OK != res)
 360                             {
 361                                 SetResult(g_otmCtx, res);
 362                                 OIC_LOG(ERROR, TAG, "Failed to Re-StartOwnershipTransfer");
 363                             }
 364                         }
 365                         else
 366                         {
 367                             OIC_LOG(ERROR, TAG, "User has exceeded the number of authentication attempts.");
 368                             SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 369                         }
 370                     }
 371                     else
 372                     {
 373                         OIC_LOG(ERROR, TAG, "Failed to establish secure session.");
 374                         SetResult(g_otmCtx, OC_STACK_AUTHENTICATION_FAILURE);
 375                     }
 376                 }
 377             }
 378         }
 379     }
 380 }
 381
 382 /**
 383  * Function to save ownerPSK at provisioning tool end.
 384  *
 385  * @param[in] selectedDeviceInfo   selected device information to performing provisioning.
 386  * @return  OC_STACK_OK on success
 387  */
 388 static OCStackResult SaveOwnerPSK(OCProvisionDev_t *selectedDeviceInfo)
 389 {
 390     OIC_LOG(DEBUG, TAG, "IN SaveOwnerPSK");
 391
 392     OCStackResult res = OC_STACK_ERROR;
 393
 394     CAEndpoint_t endpoint;
 395     memset(&endpoint, 0x00, sizeof(CAEndpoint_t));
 396     OICStrcpy(endpoint.addr, MAX_ADDR_STR_SIZE_CA, selectedDeviceInfo->endpoint.addr);
 397     endpoint.addr[MAX_ADDR_STR_SIZE_CA - 1] = '\0';
 398     endpoint.port = selectedDeviceInfo->securePort;
 399
 400     OicUuid_t ptDeviceID = {.id={0}};
 401     if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
 402     {
 403         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 404         return res;
 405     }
 406
 407     uint8_t ownerPSK[OWNER_PSK_LENGTH_128] = {0};
 408     OicSecKey_t ownerKey = {ownerPSK, OWNER_PSK_LENGTH_128};
 409
 410     //Generating OwnerPSK
 411     CAResult_t pskRet = CAGenerateOwnerPSK(&endpoint,
 412             (uint8_t *)GetOxmString(selectedDeviceInfo->doxm->oxmSel),
 413             strlen(GetOxmString(selectedDeviceInfo->doxm->oxmSel)),
 414             ptDeviceID.id, sizeof(ptDeviceID.id),
 415             selectedDeviceInfo->doxm->deviceID.id, sizeof(selectedDeviceInfo->doxm->deviceID.id),
 416             ownerPSK, OWNER_PSK_LENGTH_128);
 417
 418     if (CA_STATUS_OK == pskRet)
 419     {
 420         OIC_LOG(INFO, TAG,"ownerPSK dump:\n");
 421         OIC_LOG_BUFFER(INFO, TAG,ownerPSK, OWNER_PSK_LENGTH_128);
 422         //Generating new credential for provisioning tool
 423         OicSecCred_t *cred = GenerateCredential(&selectedDeviceInfo->doxm->deviceID,
 424                 SYMMETRIC_PAIR_WISE_KEY, NULL,
 425                 &ownerKey, &ptDeviceID);
 426         VERIFY_NON_NULL(TAG, cred, ERROR);
 427
 428         // TODO: Added as workaround. Will be replaced soon.
 429         cred->privateData.encoding = OIC_ENCODING_RAW;
 430
 431 #if 1
 432         // NOTE: Test codes to use BASE64 encoded owner PSK.
 433         uint32_t outSize = 0;
 434         size_t b64BufSize = B64ENCODE_OUT_SAFESIZE((OWNER_PSK_LENGTH_128 + 1));
 435         char* b64Buf = (uint8_t *)OICCalloc(1, b64BufSize);
 436         VERIFY_NON_NULL(TAG, b64Buf, ERROR);
 437         b64Encode(cred->privateData.data, cred->privateData.len, b64Buf, b64BufSize, &outSize);
 438
 439         OICFree( cred->privateData.data );
 440         cred->privateData.data = (uint8_t *)OICCalloc(1, outSize + 1);
 441         VERIFY_NON_NULL(TAG, cred->privateData.data, ERROR);
 442
 443         strncpy(cred->privateData.data, b64Buf, outSize);
 444         cred->privateData.data[outSize] = '\0';
 445         cred->privateData.encoding = OIC_ENCODING_BASE64;
 446         cred->privateData.len = outSize;
 447         OICFree(b64Buf);
 448 #endif //End of Test codes
 449
 450         res = AddCredential(cred);
 451         if(res != OC_STACK_OK)
 452         {
 453             DeleteCredList(cred);
 454             return res;
 455         }
 456     }
 457     else
 458     {
 459         OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
 460     }
 461
 462     OIC_LOG(DEBUG, TAG, "OUT SaveOwnerPSK");
 463 exit:
 464     return res;
 465 }
 466
 467 /**
 468  * Callback handler for OwnerShipTransferModeHandler API.
 469  *
 470  * @param[in] ctx             ctx value passed to callback from calling function.
 471  * @param[in] UNUSED          handle to an invocation
 472  * @param[in] clientResponse  Response from queries to remote servers.
 473  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 474  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 475  */
 476 static OCStackApplicationResult OwnerTransferModeHandler(void *ctx, OCDoHandle UNUSED,
 477                                                          OCClientResponse *clientResponse)
 478 {
 479     OIC_LOG(DEBUG, TAG, "IN OwnerTransferModeHandler");
 480
 481     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 482     VERIFY_NON_NULL(TAG, ctx, WARNING);
 483
 484     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 485     (void)UNUSED;
 486     if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 487     {
 488         OIC_LOG(INFO, TAG, "OwnerTransferModeHandler : response result = OC_STACK_OK");
 489         //Send request : GET /oic/sec/pstat
 490         OCStackResult res = GetProvisioningStatusResource(otmCtx);
 491         if(OC_STACK_OK != res)
 492         {
 493             OIC_LOG(WARNING, TAG, "Failed to get pstat information");
 494             SetResult(otmCtx, res);
 495         }
 496     }
 497     else
 498     {
 499         OIC_LOG_V(WARNING, TAG, "OwnerTransferModeHandler : Client response is incorrect : %d",
 500         clientResponse->result);
 501         SetResult(otmCtx, clientResponse->result);
 502     }
 503
 504     OIC_LOG(DEBUG, TAG, "OUT OwnerTransferModeHandler");
 505
 506 exit:
 507     return  OC_STACK_DELETE_TRANSACTION;
 508 }
 509
 510 /**
 511  * Callback handler for ProvisioningStatusResouceHandler API.
 512  *
 513  * @param[in] ctx             ctx value passed to callback from calling function.
 514  * @param[in] UNUSED          handle to an invocation
 515  * @param[in] clientResponse  Response from queries to remote servers.
 516  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 517  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 518  */
 519 static OCStackApplicationResult ListMethodsHandler(void *ctx, OCDoHandle UNUSED,
 520                                                     OCClientResponse *clientResponse)
 521 {
 522     OIC_LOG(DEBUG, TAG, "IN ListMethodsHandler");
 523
 524     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 525     VERIFY_NON_NULL(TAG, ctx, WARNING);
 526
 527     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 528     (void)UNUSED;
 529     if  (OC_STACK_OK == clientResponse->result)
 530     {
 531         if  (NULL == clientResponse->payload)
 532         {
 533             OIC_LOG(INFO, TAG, "Skiping Null payload");
 534             SetResult(otmCtx, OC_STACK_ERROR);
 535             return OC_STACK_DELETE_TRANSACTION;
 536         }
 537
 538         if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 539         {
 540             OIC_LOG(INFO, TAG, "Unknown payload type");
 541             SetResult(otmCtx, OC_STACK_ERROR);
 542             return OC_STACK_DELETE_TRANSACTION;
 543         }
 544         OicSecPstat_t* pstat = NULL;
 545         OCStackResult result = CBORPayloadToPstat(
 546                 ((OCSecurityPayload*)clientResponse->payload)->securityData,
 547                 ((OCSecurityPayload*)clientResponse->payload)->payloadSize,
 548                 &pstat);
 549         if(NULL == pstat || result != OC_STACK_OK)
 550         {
 551             OIC_LOG(ERROR, TAG, "Error while converting cbor to pstat.");
 552             SetResult(otmCtx, OC_STACK_ERROR);
 553             return OC_STACK_DELETE_TRANSACTION;
 554         }
 555         if(false == (TAKE_OWNER & pstat->cm))
 556         {
 557             OIC_LOG(ERROR, TAG, "Device pairing mode enabling owner transfer operations is disabled");
 558             SetResult(otmCtx, OC_STACK_ERROR);
 559             return OC_STACK_DELETE_TRANSACTION;
 560         }
 561         otmCtx->selectedDeviceInfo->pstat = pstat;
 562
 563         //Select operation mode (Currently supported SINGLE_SERVICE_CLIENT_DRIVEN only)
 564         SelectOperationMode(otmCtx->selectedDeviceInfo, &(otmCtx->selectedDeviceInfo->pstat->om));
 565
 566         //Send request : POST /oic/sec/pstat [{"om":"bx11", .. }]
 567         OCStackResult res = PostUpdateOperationMode(otmCtx);
 568         if (OC_STACK_OK != res)
 569         {
 570             OIC_LOG(ERROR, TAG, "Error while updating operation mode.");
 571             SetResult(otmCtx, res);
 572         }
 573     }
 574     else
 575     {
 576         OIC_LOG_V(WARNING, TAG, "ListMethodsHandler : Client response is incorrect : %d",
 577             clientResponse->result);
 578         SetResult(otmCtx, clientResponse->result);
 579     }
 580
 581     OIC_LOG(DEBUG, TAG, "OUT ListMethodsHandler");
 582 exit:
 583     return  OC_STACK_DELETE_TRANSACTION;
 584 }
 585
 586 /**
 587  * Response handler for update owner uuid request.
 588  *
 589  * @param[in] ctx             ctx value passed to callback from calling function.
 590  * @param[in] UNUSED          handle to an invocation
 591  * @param[in] clientResponse  Response from queries to remote servers.
 592  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 593  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 594  */
 595 static OCStackApplicationResult OwnerUuidUpdateHandler(void *ctx, OCDoHandle UNUSED,
 596                                 OCClientResponse *clientResponse)
 597 {
 598     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 599     VERIFY_NON_NULL(TAG, ctx, WARNING);
 600
 601     OIC_LOG(DEBUG, TAG, "IN OwnerUuidUpdateHandler");
 602     (void)UNUSED;
 603     OCStackResult res = OC_STACK_OK;
 604     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 605
 606     if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 607     {
 608         if(otmCtx && otmCtx->selectedDeviceInfo)
 609         {
 610             res = SaveOwnerPSK(otmCtx->selectedDeviceInfo);
 611             if(OC_STACK_OK != res)
 612             {
 613                 OIC_LOG(ERROR, TAG, "OwnerUuidUpdateHandler:Failed to owner PSK generation");
 614                 SetResult(otmCtx, res);
 615                 return OC_STACK_DELETE_TRANSACTION;
 616             }
 617
 618             //POST owner credential to new device according to security spec B.
 619             res = PostOwnerCredential(otmCtx);
 620             if(OC_STACK_OK != res)
 621             {
 622                 OIC_LOG(ERROR, TAG,
 623                         "OwnerUuidUpdateHandler:Failed to send PosT request for onwer credential");
 624                 SetResult(otmCtx, res);
 625                 return OC_STACK_DELETE_TRANSACTION;
 626             }
 627         }
 628     }
 629     else
 630     {
 631         res = clientResponse->result;
 632         OIC_LOG_V(ERROR, TAG, "OwnerUuidHandler : Unexpected result %d", res);
 633         SetResult(otmCtx, res);
 634     }
 635
 636     OIC_LOG(DEBUG, TAG, "OUT OwnerUuidUpdateHandler");
 637
 638 exit:
 639     return  OC_STACK_DELETE_TRANSACTION;
 640 }
 641
 642 /**
 643  * Response handler for update operation mode.
 644  *
 645  * @param[in] ctx             ctx value passed to callback from calling function.
 646  * @param[in] UNUSED          handle to an invocation
 647  * @param[in] clientResponse  Response from queries to remote servers.
 648  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 649  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 650  */
 651 static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
 652                                 OCClientResponse *clientResponse)
 653 {
 654     OIC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
 655
 656     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 657     VERIFY_NON_NULL(TAG, ctx, WARNING);
 658
 659     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 660     (void) UNUSED;
 661     if  (OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 662     {
 663         OCStackResult res = OC_STACK_ERROR;
 664         OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
 665         //DTLS Handshake
 666         //Load secret for temporal secure session.
 667         if(g_OTMDatas[selOxm].loadSecretCB)
 668         {
 669             res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
 670             if(OC_STACK_OK != res)
 671             {
 672                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
 673                 SetResult(otmCtx, res);
 674                 return  OC_STACK_DELETE_TRANSACTION;
 675             }
 676         }
 677
 678         //It will be used in handshake event handler
 679         g_otmCtx = otmCtx;
 680
 681         //Try DTLS handshake to generate secure session
 682         if(g_OTMDatas[selOxm].createSecureSessionCB)
 683         {
 684             res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
 685             if(OC_STACK_OK != res)
 686             {
 687                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
 688                 SetResult(otmCtx, res);
 689                 return OC_STACK_DELETE_TRANSACTION;
 690             }
 691         }
 692     }
 693     else
 694     {
 695         OIC_LOG(ERROR, TAG, "Error while update operation mode");
 696         SetResult(otmCtx, clientResponse->result);
 697     }
 698
 699     OIC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
 700
 701 exit:
 702     return  OC_STACK_DELETE_TRANSACTION;
 703 }
 704
 705 /**
 706  * Response handler for update owner crendetial request.
 707  *
 708  * @param[in] ctx             ctx value passed to callback from calling function.
 709  * @param[in] UNUSED          handle to an invocation
 710  * @param[in] clientResponse  Response from queries to remote servers.
 711  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 712  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 713  */
 714 static OCStackApplicationResult OwnerCredentialHandler(void *ctx, OCDoHandle UNUSED,
 715                                 OCClientResponse *clientResponse)
 716 {
 717     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 718     VERIFY_NON_NULL(TAG, ctx, WARNING);
 719
 720     OIC_LOG(DEBUG, TAG, "IN OwnerCredentialHandler");
 721     (void)UNUSED;
 722     OCStackResult res = OC_STACK_OK;
 723     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 724
 725     if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 726     {
 727         if(otmCtx && otmCtx->selectedDeviceInfo)
 728         {
 729             //Close the temporal secure session to verify the owner credential
 730             CAEndpoint_t* endpoint = (CAEndpoint_t *)&otmCtx->selectedDeviceInfo->endpoint;
 731             endpoint->port = otmCtx->selectedDeviceInfo->securePort;
 732             CAResult_t caResult = CACloseDtlsSession(endpoint);
 733             if(CA_STATUS_OK != caResult)
 734             {
 735                 OIC_LOG(ERROR, TAG, "Failed to close DTLS session");
 736                 SetResult(otmCtx, caResult);
 737                 return OC_STACK_DELETE_TRANSACTION;
 738             }
 739
 740             /**
 741              * If we select NULL cipher,
 742              * client will select appropriate cipher suite according to server's cipher-suite list.
 743              */
 744             caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL);
 745             if(CA_STATUS_OK != caResult)
 746             {
 747                 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
 748                 SetResult(otmCtx, caResult);
 749                 return OC_STACK_DELETE_TRANSACTION;
 750             }
 751
 752             /**
 753              * in case of random PIN based OxM,
 754              * revert get_psk_info callback of tinyDTLS to use owner credential.
 755              */
 756             if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 757             {
 758                 OicUuid_t emptyUuid = { .id={0}};
 759                 SetUuidForRandomPinOxm(&emptyUuid);
 760
 761                 if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 762                 {
 763                     OIC_LOG(ERROR, TAG, "Failed to revert DTLS credential handler.");
 764                     SetResult(otmCtx, OC_STACK_INVALID_CALLBACK);
 765                     return OC_STACK_DELETE_TRANSACTION;
 766                 }
 767             }
 768
 769             //POST /oic/sec/doxm [{ ..., "owned":"TRUE" }]
 770             res = PostOwnershipInformation(otmCtx);
 771             if(OC_STACK_OK != res)
 772             {
 773                 OIC_LOG(ERROR, TAG, "Failed to post ownership information to new device");
 774                 SetResult(otmCtx, res);
 775                 return OC_STACK_DELETE_TRANSACTION;
 776             }
 777         }
 778     }
 779     else
 780     {
 781         res = clientResponse->result;
 782         OIC_LOG_V(ERROR, TAG, "OwnerCredentialHandler : Unexpected result %d", res);
 783         SetResult(otmCtx, res);
 784     }
 785
 786     OIC_LOG(DEBUG, TAG, "OUT OwnerCredentialHandler");
 787
 788 exit:
 789     return  OC_STACK_DELETE_TRANSACTION;
 790 }
 791
 792
 793 /**
 794  * Response handler for update owner information request.
 795  *
 796  * @param[in] ctx             ctx value passed to callback from calling function.
 797  * @param[in] UNUSED          handle to an invocation
 798  * @param[in] clientResponse  Response from queries to remote servers.
 799  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 800  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 801  */
 802 static OCStackApplicationResult OwnershipInformationHandler(void *ctx, OCDoHandle UNUSED,
 803                                 OCClientResponse *clientResponse)
 804 {
 805     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 806     VERIFY_NON_NULL(TAG, ctx, WARNING);
 807
 808     OIC_LOG(DEBUG, TAG, "IN OwnershipInformationHandler");
 809     (void)UNUSED;
 810     OCStackResult res = OC_STACK_OK;
 811     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 812
 813     if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 814     {
 815         if(otmCtx && otmCtx->selectedDeviceInfo)
 816         {
 817             OIC_LOG(INFO, TAG, "Ownership transfer was successfully completed.");
 818             OIC_LOG(INFO, TAG, "Set Ready for provisioning state .");
 819
 820             res = PostProvisioningStatus(otmCtx);
 821             if(OC_STACK_OK != res)
 822             {
 823                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 824                 SetResult(otmCtx, res);
 825             }
 826         }
 827     }
 828     else
 829     {
 830         res = clientResponse->result;
 831         OIC_LOG_V(ERROR, TAG, "OwnershipInformationHandler : Unexpected result %d", res);
 832         SetResult(otmCtx, res);
 833     }
 834
 835     OIC_LOG(DEBUG, TAG, "OUT OwnershipInformationHandler");
 836
 837 exit:
 838     return  OC_STACK_DELETE_TRANSACTION;
 839 }
 840
 841 /**
 842  * Response handler of update provisioning status.
 843  *
 844  * @param[in] ctx             ctx value passed to callback from calling function.
 845  * @param[in] UNUSED          handle to an invocation
 846  * @param[in] clientResponse  Response from queries to remote servers.
 847  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 848  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 849  */
 850 static OCStackApplicationResult ProvisioningStatusHandler(void *ctx, OCDoHandle UNUSED,
 851                                                        OCClientResponse *clientResponse)
 852 {
 853     OIC_LOG_V(INFO, TAG, "IN ProvisioningStatusHandler.");
 854
 855     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 856     VERIFY_NON_NULL(TAG, ctx, ERROR);
 857
 858     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 859     (void)UNUSED;
 860     OCStackResult res = OC_STACK_OK;
 861
 862     if(OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 863     {
 864         if(otmCtx && otmCtx->selectedDeviceInfo)
 865         {
 866             OIC_LOG(INFO, TAG, "Device state is in Ready for Provisionig.");
 867
 868             res = PostNormalOperationStatus(otmCtx);
 869             if(OC_STACK_OK != res)
 870             {
 871                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 872                 SetResult(otmCtx, res);
 873             }
 874         }
 875     }
 876     else
 877     {
 878         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 879                             clientResponse->result);
 880         SetResult(otmCtx, clientResponse->result);
 881     }
 882
 883 exit:
 884     OIC_LOG_V(INFO, TAG, "OUT ProvisioningStatusHandler.");
 885     return OC_STACK_DELETE_TRANSACTION;
 886 }
 887
 888 /**
 889  * Response handler of update provisioning status to Ready for Normal..
 890  *
 891  * @param[in] ctx             ctx value passed to callback from calling function.
 892  * @param[in] UNUSED          handle to an invocation
 893  * @param[in] clientResponse  Response from queries to remote servers.
 894  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 895  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 896  */
 897 static OCStackApplicationResult ReadyForNomalStatusHandler(void *ctx, OCDoHandle UNUSED,
 898                                                        OCClientResponse *clientResponse)
 899 {
 900     OIC_LOG_V(INFO, TAG, "IN ReadyForNomalStatusHandler.");
 901
 902     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 903     VERIFY_NON_NULL(TAG, ctx, ERROR);
 904
 905     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 906     (void)UNUSED;
 907
 908     if (OC_STACK_RESOURCE_CHANGED == clientResponse->result)
 909     {
 910         OIC_LOG(INFO, TAG, "Device state is in Ready for Normal Operation.");
 911         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
 912          if (OC_STACK_OK == res)
 913          {
 914                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
 915                 SetResult(otmCtx, OC_STACK_OK);
 916                 return OC_STACK_DELETE_TRANSACTION;
 917          }
 918           else
 919          {
 920               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
 921          }
 922     }
 923     else
 924     {
 925         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 926                             clientResponse->result);
 927         SetResult(otmCtx, clientResponse->result);
 928     }
 929
 930 exit:
 931     OIC_LOG_V(INFO, TAG, "OUT ReadyForNomalStatusHandler.");
 932     return OC_STACK_DELETE_TRANSACTION;
 933 }
 934
 935 static OCStackResult PostOwnerCredential(OTMContext_t* otmCtx)
 936 {
 937     OIC_LOG(DEBUG, TAG, "IN PostOwnerCredential");
 938
 939     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 940     {
 941         OIC_LOG(ERROR, TAG, "Invalid parameters");
 942         return OC_STACK_INVALID_PARAM;
 943     }
 944
 945     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 946     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 947
 948     if(!PMGenerateQuery(true,
 949                         deviceInfo->endpoint.addr, deviceInfo->securePort,
 950                         deviceInfo->connType,
 951                         query, sizeof(query), OIC_RSRC_CRED_URI))
 952     {
 953         OIC_LOG(ERROR, TAG, "PostOwnerCredential : Failed to generate query");
 954         return OC_STACK_ERROR;
 955     }
 956     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 957     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 958     if(!secPayload)
 959     {
 960         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 961         return OC_STACK_NO_MEMORY;
 962     }
 963
 964     //Generate owner credential for new device
 965     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 966     const OicSecCred_t* ownerCredential = GetCredResourceData(&(deviceInfo->doxm->deviceID));
 967     if(!ownerCredential)
 968     {
 969         OIC_LOG(ERROR, TAG, "Can not find OwnerPSK.");
 970         return OC_STACK_NO_RESOURCE;
 971     }
 972
 973     OicUuid_t credSubjectId = {.id={0}};
 974     if(OC_STACK_OK == GetDoxmDeviceID(&credSubjectId))
 975     {
 976         OicSecCred_t newCredential;
 977         memcpy(&newCredential, ownerCredential, sizeof(OicSecCred_t));
 978         newCredential.next = NULL;
 979
 980         //Set subject ID as PT's ID
 981         memcpy(&(newCredential.subject), &credSubjectId, sizeof(OicUuid_t));
 982
 983         //Fill private data as empty string
 984         newCredential.privateData.data = "";
 985         newCredential.privateData.len = 0;
 986         newCredential.privateData.encoding = ownerCredential->privateData.encoding;
 987 #ifdef __WITH_X509__
 988         newCredential.publicData.data = NULL;
 989         newCredential.publicData.len = 0;
 990 #endif
 991         int secureFlag = 0;
 992         //Send owner credential to new device : POST /oic/sec/cred [ owner credential ]
 993         if (OC_STACK_OK != CredToCBORPayload(&newCredential, &secPayload->securityData,
 994                                         &secPayload->payloadSize, secureFlag))
 995         {
 996             OICFree(secPayload);
 997             OIC_LOG(ERROR, TAG, "Error while converting bin to cbor.");
 998             return OC_STACK_ERROR;
 999         }
1000         OIC_LOG(DEBUG, TAG, "Cred Payload:");
1001         OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1002
1003         OCCallbackData cbData;
1004         cbData.cb = &OwnerCredentialHandler;
1005         cbData.context = (void *)otmCtx;
1006         cbData.cd = NULL;
1007         OCStackResult res = OCDoResource(NULL, OC_REST_POST, query,
1008                                          &deviceInfo->endpoint, (OCPayload*)secPayload,
1009                                          deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1010         if (res != OC_STACK_OK)
1011         {
1012             OIC_LOG(ERROR, TAG, "OCStack resource error");
1013         }
1014     }
1015     else
1016     {
1017         OIC_LOG(ERROR, TAG, "Failed to read DOXM device ID.");
1018         return OC_STACK_NO_RESOURCE;
1019     }
1020
1021     OIC_LOG(DEBUG, TAG, "OUT PostOwnerCredential");
1022
1023     return OC_STACK_OK;
1024 }
1025
1026 static OCStackResult PostOwnerTransferModeToResource(OTMContext_t* otmCtx)
1027 {
1028     OIC_LOG(DEBUG, TAG, "IN PostOwnerTransferModeToResource");
1029
1030     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1031     {
1032         OIC_LOG(ERROR, TAG, "Invalid parameters");
1033         return OC_STACK_INVALID_PARAM;
1034     }
1035
1036     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1037     OicSecOxm_t selectedOxm = deviceInfo->doxm->oxmSel;
1038     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1039
1040     if(!PMGenerateQuery(false,
1041                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1042                         deviceInfo->connType,
1043                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1044     {
1045         OIC_LOG(ERROR, TAG, "PostOwnerTransferModeToResource : Failed to generate query");
1046         return OC_STACK_ERROR;
1047     }
1048     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1049     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1050     if(!secPayload)
1051     {
1052         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1053         return OC_STACK_NO_MEMORY;
1054     }
1055     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1056     OCStackResult res = g_OTMDatas[selectedOxm].createSelectOxmPayloadCB(otmCtx,
1057             &secPayload->securityData, &secPayload->payloadSize);
1058     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1059     {
1060         OCPayloadDestroy((OCPayload *)secPayload);
1061         OIC_LOG(ERROR, TAG, "Error while converting bin to cbor");
1062         return OC_STACK_ERROR;
1063     }
1064
1065     OCCallbackData cbData;
1066     cbData.cb = &OwnerTransferModeHandler;
1067     cbData.context = (void *)otmCtx;
1068     cbData.cd = NULL;
1069     res = OCDoResource(NULL, OC_REST_POST, query,
1070                        &deviceInfo->endpoint, (OCPayload *)secPayload,
1071                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1072     if (res != OC_STACK_OK)
1073     {
1074         OIC_LOG(ERROR, TAG, "OCStack resource error");
1075     }
1076
1077     OIC_LOG(DEBUG, TAG, "OUT PostOwnerTransferModeToResource");
1078
1079     return res;
1080 }
1081
1082 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx)
1083 {
1084     OIC_LOG(DEBUG, TAG, "IN GetProvisioningStatusResource");
1085
1086     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1087     {
1088         OIC_LOG(ERROR, TAG, "Invailed parameters");
1089         return OC_STACK_INVALID_PARAM;
1090     }
1091
1092     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1093     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1094     if(!PMGenerateQuery(false,
1095                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1096                         deviceInfo->connType,
1097                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1098     {
1099         OIC_LOG(ERROR, TAG, "GetProvisioningStatusResource : Failed to generate query");
1100         return OC_STACK_ERROR;
1101     }
1102     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1103
1104     OCCallbackData cbData;
1105     cbData.cb = &ListMethodsHandler;
1106     cbData.context = (void *)otmCtx;
1107     cbData.cd = NULL;
1108     OCStackResult res = OCDoResource(NULL, OC_REST_GET, query, NULL, NULL,
1109                                      deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1110     if (res != OC_STACK_OK)
1111     {
1112         OIC_LOG(ERROR, TAG, "OCStack resource error");
1113     }
1114
1115     OIC_LOG(DEBUG, TAG, "OUT GetProvisioningStatusResource");
1116
1117     return res;
1118 }
1119
1120 static OCStackResult PostOwnerUuid(OTMContext_t* otmCtx)
1121 {
1122     OIC_LOG(DEBUG, TAG, "IN PostOwnerUuid");
1123
1124     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1125     {
1126         OIC_LOG(ERROR, TAG, "Invailed parameters");
1127         return OC_STACK_INVALID_PARAM;
1128     }
1129
1130     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1131     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1132     if(!PMGenerateQuery(true,
1133                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1134                         deviceInfo->connType,
1135                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1136     {
1137         OIC_LOG(ERROR, TAG, "PostOwnerUuid : Failed to generate query");
1138         return OC_STACK_ERROR;
1139     }
1140     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1141
1142     //Post PT's uuid to new device
1143     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1144     if(!secPayload)
1145     {
1146         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1147         return OC_STACK_NO_MEMORY;
1148     }
1149     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1150     OCStackResult res =  g_OTMDatas[deviceInfo->doxm->oxmSel].createOwnerTransferPayloadCB(
1151             otmCtx, &secPayload->securityData, &secPayload->payloadSize);
1152     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1153     {
1154         OCPayloadDestroy((OCPayload *)secPayload);
1155         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to cbor.");
1156         return OC_STACK_INVALID_PARAM;
1157     }
1158     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1159
1160     OCCallbackData cbData;
1161     cbData.cb = &OwnerUuidUpdateHandler;
1162     cbData.context = (void *)otmCtx;
1163     cbData.cd = NULL;
1164
1165     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload *)secPayload,
1166             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1167     if (res != OC_STACK_OK)
1168     {
1169         OIC_LOG(ERROR, TAG, "OCStack resource error");
1170     }
1171
1172     OIC_LOG(DEBUG, TAG, "OUT PostOwnerUuid");
1173
1174     return res;
1175 }
1176
1177 static OCStackResult PostOwnershipInformation(OTMContext_t* otmCtx)
1178 {
1179     OIC_LOG(DEBUG, TAG, "IN PostOwnershipInformation");
1180
1181     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1182     {
1183         OIC_LOG(ERROR, TAG, "Invailed parameters");
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(true,
1190                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1191                         deviceInfo->connType,
1192                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1193     {
1194         OIC_LOG(ERROR, TAG, "PostOwnershipInformation : Failed to generate query");
1195         return OC_STACK_ERROR;
1196     }
1197     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1198
1199     //OwnershipInformationHandler
1200     OCSecurityPayload *secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1201     if (!secPayload)
1202     {
1203         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1204         return OC_STACK_NO_MEMORY;
1205     }
1206
1207     otmCtx->selectedDeviceInfo->doxm->owned = true;
1208
1209     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1210     OCStackResult res = DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm,
1211             &secPayload->securityData, &secPayload->payloadSize);
1212     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1213     {
1214         OCPayloadDestroy((OCPayload *)secPayload);
1215         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1216         return OC_STACK_INVALID_PARAM;
1217     }
1218
1219     OCCallbackData cbData;
1220     cbData.cb = &OwnershipInformationHandler;
1221     cbData.context = (void *)otmCtx;
1222     cbData.cd = NULL;
1223
1224     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1225                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1226     if (res != OC_STACK_OK)
1227     {
1228         OIC_LOG(ERROR, TAG, "OCStack resource error");
1229     }
1230
1231     OIC_LOG(DEBUG, TAG, "OUT PostOwnershipInformation");
1232
1233     return res;
1234 }
1235
1236 static OCStackResult PostUpdateOperationMode(OTMContext_t* otmCtx)
1237 {
1238     OIC_LOG(DEBUG, TAG, "IN PostUpdateOperationMode");
1239
1240     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1241     {
1242         return OC_STACK_INVALID_PARAM;
1243     }
1244
1245     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1246     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1247     if(!PMGenerateQuery(false,
1248                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1249                         deviceInfo->connType,
1250                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1251     {
1252         OIC_LOG(ERROR, TAG, "PostUpdateOperationMode : Failed to generate query");
1253         return OC_STACK_ERROR;
1254     }
1255     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1256
1257     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1258     if(!secPayload)
1259     {
1260         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1261         return OC_STACK_NO_MEMORY;
1262     }
1263     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1264     OCStackResult res = PstatToCBORPayload(deviceInfo->pstat, &secPayload->securityData,
1265                                            &secPayload->payloadSize);
1266    if (OC_STACK_OK != res)
1267     {
1268         OCPayloadDestroy((OCPayload *)secPayload);
1269         OIC_LOG(ERROR, TAG, "Error while converting pstat to cbor.");
1270         return OC_STACK_INVALID_PARAM;
1271     }
1272
1273     OCCallbackData cbData;
1274     cbData.cb = &OperationModeUpdateHandler;
1275     cbData.context = (void *)otmCtx;
1276     cbData.cd = NULL;
1277     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload *)secPayload,
1278                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1279     if (res != OC_STACK_OK)
1280     {
1281         OIC_LOG(ERROR, TAG, "OCStack resource error");
1282     }
1283
1284     OIC_LOG(DEBUG, TAG, "OUT PostUpdateOperationMode");
1285
1286     return res;
1287 }
1288
1289 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice)
1290 {
1291     OIC_LOG(INFO, TAG, "IN StartOwnershipTransfer");
1292     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1293     otmCtx->selectedDeviceInfo = selectedDevice;
1294
1295     //Set to the lowest level OxM, and then find more higher level OxM.
1296     OCStackResult res = SelectProvisioningMethod(selectedDevice->doxm->oxm,
1297                                                  selectedDevice->doxm->oxmLen,
1298                                                  &selectedDevice->doxm->oxmSel);
1299     if(OC_STACK_OK != res)
1300     {
1301         OIC_LOG(ERROR, TAG, "Failed to select the provisioning method");
1302         SetResult(otmCtx, res);
1303         return res;
1304     }
1305     OIC_LOG_V(DEBUG, TAG, "Selected provisoning method = %d", selectedDevice->doxm->oxmSel);
1306
1307     //Send Req: POST /oic/sec/doxm [{..."OxmSel" :g_OTMDatas[Index of Selected OxM].OXMString,...}]
1308     res = PostOwnerTransferModeToResource(otmCtx);
1309     if(OC_STACK_OK != res)
1310     {
1311         OIC_LOG(WARNING, TAG, "Failed to select the provisioning method");
1312         SetResult(otmCtx, res);
1313         return res;
1314     }
1315
1316     //Register DTLS event handler to catch the dtls event while handshake
1317     if(CA_STATUS_OK != CARegisterDTLSHandshakeCallback(DTLSHandshakeCB))
1318     {
1319         OIC_LOG(WARNING, TAG, "StartOwnershipTransfer : Failed to register DTLS handshake callback.");
1320     }
1321
1322     OIC_LOG(INFO, TAG, "OUT StartOwnershipTransfer");
1323
1324     return res;
1325
1326 }
1327
1328 OCStackResult OTMSetOwnershipTransferCallbackData(OicSecOxm_t oxmType, OTMCallbackData_t* data)
1329 {
1330     OIC_LOG(DEBUG, TAG, "IN OTMSetOwnerTransferCallbackData");
1331
1332     if(!data)
1333     {
1334         OIC_LOG(ERROR, TAG, "OTMSetOwnershipTransferCallbackData : Invalid parameters");
1335         return OC_STACK_INVALID_PARAM;
1336     }
1337     if(oxmType >= OIC_OXM_COUNT)
1338     {
1339         OIC_LOG(INFO, TAG, "Unknow ownership transfer method");
1340         return OC_STACK_INVALID_PARAM;
1341     }
1342
1343     g_OTMDatas[oxmType].loadSecretCB= data->loadSecretCB;
1344     g_OTMDatas[oxmType].createSecureSessionCB = data->createSecureSessionCB;
1345     g_OTMDatas[oxmType].createSelectOxmPayloadCB = data->createSelectOxmPayloadCB;
1346     g_OTMDatas[oxmType].createOwnerTransferPayloadCB = data->createOwnerTransferPayloadCB;
1347
1348     OIC_LOG(DEBUG, TAG, "OUT OTMSetOwnerTransferCallbackData");
1349
1350     return OC_STACK_OK;
1351 }
1352
1353 /**
1354  * NOTE : Unowned discovery should be done before performing OTMDoOwnershipTransfer
1355  */
1356 OCStackResult OTMDoOwnershipTransfer(void* ctx,
1357                                      OCProvisionDev_t *selectedDevicelist,
1358                                      OCProvisionResultCB resultCallback)
1359 {
1360     OIC_LOG(DEBUG, TAG, "IN OTMDoOwnershipTransfer");
1361
1362     if (NULL == selectedDevicelist)
1363     {
1364         return OC_STACK_INVALID_PARAM;
1365     }
1366     if (NULL == resultCallback)
1367     {
1368         return OC_STACK_INVALID_CALLBACK;
1369     }
1370
1371     OTMContext_t* otmCtx = (OTMContext_t*)OICCalloc(1,sizeof(OTMContext_t));
1372     if(!otmCtx)
1373     {
1374         OIC_LOG(ERROR, TAG, "Failed to create OTM Context");
1375         return OC_STACK_NO_MEMORY;
1376     }
1377     otmCtx->ctxResultCallback = resultCallback;
1378     otmCtx->ctxHasError = false;
1379     otmCtx->userCtx = ctx;
1380     OCProvisionDev_t* pCurDev = selectedDevicelist;
1381
1382     //Counting number of selected devices.
1383     otmCtx->ctxResultArraySize = 0;
1384     while(NULL != pCurDev)
1385     {
1386         otmCtx->ctxResultArraySize++;
1387         pCurDev = pCurDev->next;
1388     }
1389
1390     otmCtx->ctxResultArray =
1391         (OCProvisionResult_t*)OICCalloc(otmCtx->ctxResultArraySize, sizeof(OCProvisionResult_t));
1392     if(NULL == otmCtx->ctxResultArray)
1393     {
1394         OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Failed to memory allocation");
1395         OICFree(otmCtx);
1396         return OC_STACK_NO_MEMORY;
1397     }
1398     pCurDev = selectedDevicelist;
1399
1400     OCStackResult res = OC_STACK_OK;
1401     //Fill the device UUID for result array.
1402     for(size_t devIdx = 0; devIdx < otmCtx->ctxResultArraySize; devIdx++)
1403     {
1404         //Checking duplication of Device ID.
1405         bool isDuplicate = true;
1406         res = PDMIsDuplicateDevice(&pCurDev->doxm->deviceID, &isDuplicate);
1407         if (OC_STACK_OK != res)
1408         {
1409             goto error;
1410         }
1411         if (isDuplicate)
1412         {
1413             OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Device ID is duplicated");
1414             res = OC_STACK_INVALID_PARAM;
1415             goto error;
1416         }
1417         memcpy(otmCtx->ctxResultArray[devIdx].deviceId.id,
1418                pCurDev->doxm->deviceID.id,
1419                UUID_LENGTH);
1420         otmCtx->ctxResultArray[devIdx].res = OC_STACK_CONTINUE;
1421         pCurDev = pCurDev->next;
1422     }
1423
1424     StartOwnershipTransfer(otmCtx, selectedDevicelist);
1425
1426     OIC_LOG(DEBUG, TAG, "OUT OTMDoOwnershipTransfer");
1427     return OC_STACK_OK;
1428
1429 error:
1430     OICFree(otmCtx->ctxResultArray);
1431     OICFree(otmCtx);
1432     return res;
1433 }
1434
1435 OCStackResult PostProvisioningStatus(OTMContext_t* otmCtx)
1436 {
1437     OIC_LOG(INFO, TAG, "IN PostProvisioningStatus");
1438
1439     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1440     {
1441         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1442         return OC_STACK_INVALID_PARAM;
1443     }
1444
1445     //Change the TAKE_OWNER bit of CM to 0.
1446     otmCtx->selectedDeviceInfo->pstat->cm &= (~TAKE_OWNER);
1447
1448     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1449     if (!secPayload)
1450     {
1451         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1452         return OC_STACK_NO_MEMORY;
1453     }
1454     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1455     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1456             &secPayload->securityData, &secPayload->payloadSize))
1457     {
1458         OCPayloadDestroy((OCPayload *)secPayload);
1459         return OC_STACK_INVALID_JSON;
1460     }
1461     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1462     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1463
1464     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1465     if(!PMGenerateQuery(true,
1466                         otmCtx->selectedDeviceInfo->endpoint.addr,
1467                         otmCtx->selectedDeviceInfo->securePort,
1468                         otmCtx->selectedDeviceInfo->connType,
1469                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1470     {
1471         OIC_LOG(ERROR, TAG, "PostProvisioningStatus : Failed to generate query");
1472         return OC_STACK_ERROR;
1473     }
1474     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1475
1476     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1477     cbData.cb = &ProvisioningStatusHandler;
1478     cbData.context = (void*)otmCtx;
1479     cbData.cd = NULL;
1480     OCStackResult ret = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1481             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1482     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1483     if (ret != OC_STACK_OK)
1484     {
1485         OIC_LOG(ERROR, TAG, "OCStack resource error");
1486     }
1487
1488     OIC_LOG(INFO, TAG, "OUT PostProvisioningStatus");
1489
1490     return ret;
1491 }
1492
1493 OCStackResult PostNormalOperationStatus(OTMContext_t* otmCtx)
1494 {
1495     OIC_LOG(INFO, TAG, "IN PostNormalOperationStatus");
1496
1497     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1498     {
1499         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1500         return OC_STACK_INVALID_PARAM;
1501     }
1502
1503     //Set isop to true.
1504     otmCtx->selectedDeviceInfo->pstat->isOp = true;
1505
1506     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1507     if (!secPayload)
1508     {
1509         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1510         return OC_STACK_NO_MEMORY;
1511     }
1512     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1513     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1514             &secPayload->securityData, &secPayload->payloadSize))
1515     {
1516         OCPayloadDestroy((OCPayload *)secPayload);
1517         return OC_STACK_INVALID_JSON;
1518     }
1519     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1520     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1521
1522     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1523     if(!PMGenerateQuery(true,
1524                         otmCtx->selectedDeviceInfo->endpoint.addr,
1525                         otmCtx->selectedDeviceInfo->securePort,
1526                         otmCtx->selectedDeviceInfo->connType,
1527                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1528     {
1529         OIC_LOG(ERROR, TAG, "PostNormalOperationStatus : Failed to generate query");
1530         return OC_STACK_ERROR;
1531     }
1532     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1533
1534     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1535     cbData.cb = &ReadyForNomalStatusHandler;
1536     cbData.context = (void*)otmCtx;
1537     cbData.cd = NULL;
1538     OCStackResult ret = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1539             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1540     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1541     if (ret != OC_STACK_OK)
1542     {
1543         OIC_LOG(ERROR, TAG, "OCStack resource error");
1544     }
1545
1546     OIC_LOG(INFO, TAG, "OUT PostNormalOperationStatus");
1547
1548     return ret;
1549 }