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 PostOwnerTransferModeToResource(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 PostOwnerUuid(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 PostUpdateOperationMode(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 PostOwnershipInformation(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 PostProvisioningStatus(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 PostNormalOperationStatus(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 : POST /oic/sec/doxm [{... , "devowner":"PT's UUID"}]
 319                     res = PostOwnerUuid(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         // TODO: Added as workaround. Will be replaced soon.
 423         cred->privateData.encoding = OIC_ENCODING_RAW;
 424
 425 #if 1
 426         // NOTE: Test codes to use BASE64 encoded owner PSK.
 427         uint32_t outSize = 0;
 428         size_t b64BufSize = B64ENCODE_OUT_SAFESIZE((OWNER_PSK_LENGTH_128 + 1));
 429         char* b64Buf = (uint8_t *)OICCalloc(1, b64BufSize);
 430         VERIFY_NON_NULL(TAG, b64Buf, ERROR);
 431         b64Encode(cred->privateData.data, cred->privateData.len, b64Buf, b64BufSize, &outSize);
 432
 433         OICFree( cred->privateData.data );
 434         cred->privateData.data = (uint8_t *)OICCalloc(1, outSize + 1);
 435         VERIFY_NON_NULL(TAG, cred->privateData.data, ERROR);
 436
 437         strcpy(cred->privateData.data, b64Buf);
 438         cred->privateData.encoding = OIC_ENCODING_BASE64;
 439         cred->privateData.len = outSize;
 440         OICFree(b64Buf);
 441 #endif //End of Test codes
 442
 443         res = AddCredential(cred);
 444         if(res != OC_STACK_OK)
 445         {
 446             DeleteCredList(cred);
 447             return res;
 448         }
 449     }
 450     else
 451     {
 452         OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
 453     }
 454
 455     OIC_LOG(DEBUG, TAG, "OUT SaveOwnerPSK");
 456 exit:
 457     return res;
 458 }
 459
 460 /**
 461  * Callback handler for OwnerShipTransferModeHandler API.
 462  *
 463  * @param[in] ctx             ctx value passed to callback from calling function.
 464  * @param[in] UNUSED          handle to an invocation
 465  * @param[in] clientResponse  Response from queries to remote servers.
 466  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 467  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 468  */
 469 static OCStackApplicationResult OwnerTransferModeHandler(void *ctx, OCDoHandle UNUSED,
 470                                                          OCClientResponse *clientResponse)
 471 {
 472     OIC_LOG(DEBUG, TAG, "IN OwnerTransferModeHandler");
 473
 474     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 475     VERIFY_NON_NULL(TAG, ctx, WARNING);
 476
 477     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 478     (void)UNUSED;
 479     if(clientResponse->result == OC_STACK_OK)
 480     {
 481         OIC_LOG(INFO, TAG, "OwnerTransferModeHandler : response result = OC_STACK_OK");
 482         //Send request : GET /oic/sec/pstat
 483         OCStackResult res = GetProvisioningStatusResource(otmCtx);
 484         if(OC_STACK_OK != res)
 485         {
 486             OIC_LOG(WARNING, TAG, "Failed to get pstat information");
 487             SetResult(otmCtx, res);
 488         }
 489     }
 490     else
 491     {
 492         OIC_LOG_V(WARNING, TAG, "OwnerTransferModeHandler : Client response is incorrect : %d",
 493         clientResponse->result);
 494         SetResult(otmCtx, clientResponse->result);
 495     }
 496
 497     OIC_LOG(DEBUG, TAG, "OUT OwnerTransferModeHandler");
 498
 499 exit:
 500     return  OC_STACK_DELETE_TRANSACTION;
 501 }
 502
 503 /**
 504  * Callback handler for ProvisioningStatusResouceHandler API.
 505  *
 506  * @param[in] ctx             ctx value passed to callback from calling function.
 507  * @param[in] UNUSED          handle to an invocation
 508  * @param[in] clientResponse  Response from queries to remote servers.
 509  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 510  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 511  */
 512 static OCStackApplicationResult ListMethodsHandler(void *ctx, OCDoHandle UNUSED,
 513                                                     OCClientResponse *clientResponse)
 514 {
 515     OIC_LOG(DEBUG, TAG, "IN ListMethodsHandler");
 516
 517     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 518     VERIFY_NON_NULL(TAG, ctx, WARNING);
 519
 520     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 521     (void)UNUSED;
 522     if  (OC_STACK_OK == clientResponse->result)
 523     {
 524         if  (NULL == clientResponse->payload)
 525         {
 526             OIC_LOG(INFO, TAG, "Skiping Null payload");
 527             SetResult(otmCtx, OC_STACK_ERROR);
 528             return OC_STACK_DELETE_TRANSACTION;
 529         }
 530
 531         if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 532         {
 533             OIC_LOG(INFO, TAG, "Unknown payload type");
 534             SetResult(otmCtx, OC_STACK_ERROR);
 535             return OC_STACK_DELETE_TRANSACTION;
 536         }
 537         OicSecPstat_t* pstat = NULL;
 538         OCStackResult result = CBORPayloadToPstat(
 539                 ((OCSecurityPayload*)clientResponse->payload)->securityData,
 540                 ((OCSecurityPayload*)clientResponse->payload)->payloadSize,
 541                 &pstat);
 542         if(NULL == pstat || result != OC_STACK_OK)
 543         {
 544             OIC_LOG(ERROR, TAG, "Error while converting cbor to pstat.");
 545             SetResult(otmCtx, OC_STACK_ERROR);
 546             return OC_STACK_DELETE_TRANSACTION;
 547         }
 548         if(false == (TAKE_OWNER & pstat->cm))
 549         {
 550             OIC_LOG(ERROR, TAG, "Device pairing mode enabling owner transfer operations is disabled");
 551             SetResult(otmCtx, OC_STACK_ERROR);
 552             return OC_STACK_DELETE_TRANSACTION;
 553         }
 554         otmCtx->selectedDeviceInfo->pstat = pstat;
 555
 556         //Select operation mode (Currently supported SINGLE_SERVICE_CLIENT_DRIVEN only)
 557         SelectOperationMode(otmCtx->selectedDeviceInfo, &(otmCtx->selectedDeviceInfo->pstat->om));
 558
 559         //Send request : POST /oic/sec/pstat [{"om":"bx11", .. }]
 560         OCStackResult res = PostUpdateOperationMode(otmCtx);
 561         if (OC_STACK_OK != res)
 562         {
 563             OIC_LOG(ERROR, TAG, "Error while updating operation mode.");
 564             SetResult(otmCtx, res);
 565         }
 566     }
 567     else
 568     {
 569         OIC_LOG_V(WARNING, TAG, "ListMethodsHandler : Client response is incorrect : %d",
 570             clientResponse->result);
 571         SetResult(otmCtx, clientResponse->result);
 572     }
 573
 574     OIC_LOG(DEBUG, TAG, "OUT ListMethodsHandler");
 575 exit:
 576     return  OC_STACK_DELETE_TRANSACTION;
 577 }
 578
 579 /**
 580  * Response handler for update owner uuid request.
 581  *
 582  * @param[in] ctx             ctx value passed to callback from calling function.
 583  * @param[in] UNUSED          handle to an invocation
 584  * @param[in] clientResponse  Response from queries to remote servers.
 585  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 586  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 587  */
 588 static OCStackApplicationResult OwnerUuidUpdateHandler(void *ctx, OCDoHandle UNUSED,
 589                                 OCClientResponse *clientResponse)
 590 {
 591     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 592     VERIFY_NON_NULL(TAG, ctx, WARNING);
 593
 594     OIC_LOG(DEBUG, TAG, "IN OwnerUuidUpdateHandler");
 595     (void)UNUSED;
 596     OCStackResult res = OC_STACK_OK;
 597     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 598
 599     if(OC_STACK_OK == clientResponse->result)
 600     {
 601         if(otmCtx && otmCtx->selectedDeviceInfo)
 602         {
 603             res = SaveOwnerPSK(otmCtx->selectedDeviceInfo);
 604             if(OC_STACK_OK != res)
 605             {
 606                 OIC_LOG(ERROR, TAG, "OwnerUuidUpdateHandler:Failed to owner PSK generation");
 607                 SetResult(otmCtx, res);
 608                 return OC_STACK_DELETE_TRANSACTION;
 609             }
 610
 611             //PUT owner credential to new device according to security spec B.
 612             res = PutOwnerCredential(otmCtx);
 613             if(OC_STACK_OK != res)
 614             {
 615                 OIC_LOG(ERROR, TAG,
 616                         "OwnerUuidUpdateHandler:Failed to send PUT request for onwer credential");
 617                 SetResult(otmCtx, res);
 618                 return OC_STACK_DELETE_TRANSACTION;
 619             }
 620         }
 621     }
 622     else
 623     {
 624         res = clientResponse->result;
 625         OIC_LOG_V(ERROR, TAG, "OwnerUuidHandler : Unexpected result %d", res);
 626         SetResult(otmCtx, res);
 627     }
 628
 629     OIC_LOG(DEBUG, TAG, "OUT OwnerUuidUpdateHandler");
 630
 631 exit:
 632     return  OC_STACK_DELETE_TRANSACTION;
 633 }
 634
 635 /**
 636  * Response handler for update operation mode.
 637  *
 638  * @param[in] ctx             ctx value passed to callback from calling function.
 639  * @param[in] UNUSED          handle to an invocation
 640  * @param[in] clientResponse  Response from queries to remote servers.
 641  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 642  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 643  */
 644 static OCStackApplicationResult OperationModeUpdateHandler(void *ctx, OCDoHandle UNUSED,
 645                                 OCClientResponse *clientResponse)
 646 {
 647     OIC_LOG(DEBUG, TAG, "IN OperationModeUpdateHandler");
 648
 649     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 650     VERIFY_NON_NULL(TAG, ctx, WARNING);
 651
 652     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 653     (void) UNUSED;
 654     if  (OC_STACK_OK == clientResponse->result)
 655     {
 656         OCStackResult res = OC_STACK_ERROR;
 657         OicSecOxm_t selOxm = otmCtx->selectedDeviceInfo->doxm->oxmSel;
 658         //DTLS Handshake
 659         //Load secret for temporal secure session.
 660         if(g_OTMDatas[selOxm].loadSecretCB)
 661         {
 662             res = g_OTMDatas[selOxm].loadSecretCB(otmCtx);
 663             if(OC_STACK_OK != res)
 664             {
 665                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to load secret");
 666                 SetResult(otmCtx, res);
 667                 return  OC_STACK_DELETE_TRANSACTION;
 668             }
 669         }
 670
 671         //It will be used in handshake event handler
 672         g_otmCtx = otmCtx;
 673
 674         //Try DTLS handshake to generate secure session
 675         if(g_OTMDatas[selOxm].createSecureSessionCB)
 676         {
 677             res = g_OTMDatas[selOxm].createSecureSessionCB(otmCtx);
 678             if(OC_STACK_OK != res)
 679             {
 680                 OIC_LOG(ERROR, TAG, "OperationModeUpdate : Failed to create DTLS session");
 681                 SetResult(otmCtx, res);
 682                 return OC_STACK_DELETE_TRANSACTION;
 683             }
 684         }
 685     }
 686     else
 687     {
 688         OIC_LOG(ERROR, TAG, "Error while update operation mode");
 689         SetResult(otmCtx, clientResponse->result);
 690     }
 691
 692     OIC_LOG(DEBUG, TAG, "OUT OperationModeUpdateHandler");
 693
 694 exit:
 695     return  OC_STACK_DELETE_TRANSACTION;
 696 }
 697
 698 /**
 699  * Response handler for update owner crendetial request.
 700  *
 701  * @param[in] ctx             ctx value passed to callback from calling function.
 702  * @param[in] UNUSED          handle to an invocation
 703  * @param[in] clientResponse  Response from queries to remote servers.
 704  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 705  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 706  */
 707 static OCStackApplicationResult OwnerCredentialHandler(void *ctx, OCDoHandle UNUSED,
 708                                 OCClientResponse *clientResponse)
 709 {
 710     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 711     VERIFY_NON_NULL(TAG, ctx, WARNING);
 712
 713     OIC_LOG(DEBUG, TAG, "IN OwnerCredentialHandler");
 714     (void)UNUSED;
 715     OCStackResult res = OC_STACK_OK;
 716     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 717
 718     if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 719     {
 720         if(otmCtx && otmCtx->selectedDeviceInfo)
 721         {
 722             //Close the temporal secure session to verify the owner credential
 723             CAEndpoint_t* endpoint = (CAEndpoint_t *)&otmCtx->selectedDeviceInfo->endpoint;
 724             endpoint->port = otmCtx->selectedDeviceInfo->securePort;
 725             CAResult_t caResult = CACloseDtlsSession(endpoint);
 726             if(CA_STATUS_OK != caResult)
 727             {
 728                 OIC_LOG(ERROR, TAG, "Failed to close DTLS session");
 729                 SetResult(otmCtx, caResult);
 730                 return OC_STACK_DELETE_TRANSACTION;
 731             }
 732
 733             /**
 734              * If we select NULL cipher,
 735              * client will select appropriate cipher suite according to server's cipher-suite list.
 736              */
 737             caResult = CASelectCipherSuite(TLS_NULL_WITH_NULL_NULL);
 738             if(CA_STATUS_OK != caResult)
 739             {
 740                 OIC_LOG(ERROR, TAG, "Failed to select TLS_NULL_WITH_NULL_NULL");
 741                 SetResult(otmCtx, caResult);
 742                 return OC_STACK_DELETE_TRANSACTION;
 743             }
 744
 745             /**
 746              * in case of random PIN based OxM,
 747              * revert get_psk_info callback of tinyDTLS to use owner credential.
 748              */
 749             if(OIC_RANDOM_DEVICE_PIN == otmCtx->selectedDeviceInfo->doxm->oxmSel)
 750             {
 751                 OicUuid_t emptyUuid = { .id={0}};
 752                 SetUuidForRandomPinOxm(&emptyUuid);
 753
 754                 if(CA_STATUS_OK != CARegisterDTLSCredentialsHandler(GetDtlsPskCredentials))
 755                 {
 756                     OIC_LOG(ERROR, TAG, "Failed to revert DTLS credential handler.");
 757                     SetResult(otmCtx, OC_STACK_INVALID_CALLBACK);
 758                     return OC_STACK_DELETE_TRANSACTION;
 759                 }
 760             }
 761
 762             //POST /oic/sec/doxm [{ ..., "owned":"TRUE" }]
 763             res = PostOwnershipInformation(otmCtx);
 764             if(OC_STACK_OK != res)
 765             {
 766                 OIC_LOG(ERROR, TAG, "Failed to post ownership information to new device");
 767                 SetResult(otmCtx, res);
 768                 return OC_STACK_DELETE_TRANSACTION;
 769             }
 770         }
 771     }
 772     else
 773     {
 774         res = clientResponse->result;
 775         OIC_LOG_V(ERROR, TAG, "OwnerCredentialHandler : Unexpected result %d", res);
 776         SetResult(otmCtx, res);
 777     }
 778
 779     OIC_LOG(DEBUG, TAG, "OUT OwnerCredentialHandler");
 780
 781 exit:
 782     return  OC_STACK_DELETE_TRANSACTION;
 783 }
 784
 785
 786 /**
 787  * Response handler for update owner information request.
 788  *
 789  * @param[in] ctx             ctx value passed to callback from calling function.
 790  * @param[in] UNUSED          handle to an invocation
 791  * @param[in] clientResponse  Response from queries to remote servers.
 792  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 793  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 794  */
 795 static OCStackApplicationResult OwnershipInformationHandler(void *ctx, OCDoHandle UNUSED,
 796                                 OCClientResponse *clientResponse)
 797 {
 798     VERIFY_NON_NULL(TAG, clientResponse, WARNING);
 799     VERIFY_NON_NULL(TAG, ctx, WARNING);
 800
 801     OIC_LOG(DEBUG, TAG, "IN OwnershipInformationHandler");
 802     (void)UNUSED;
 803     OCStackResult res = OC_STACK_OK;
 804     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
 805
 806     if(OC_STACK_OK == clientResponse->result)
 807     {
 808         if(otmCtx && otmCtx->selectedDeviceInfo)
 809         {
 810             OIC_LOG(INFO, TAG, "Ownership transfer was successfully completed.");
 811             OIC_LOG(INFO, TAG, "Set Ready for provisioning state .");
 812
 813             res = PostProvisioningStatus(otmCtx);
 814             if(OC_STACK_OK != res)
 815             {
 816                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 817                 SetResult(otmCtx, res);
 818             }
 819         }
 820     }
 821     else
 822     {
 823         res = clientResponse->result;
 824         OIC_LOG_V(ERROR, TAG, "OwnershipInformationHandler : Unexpected result %d", res);
 825         SetResult(otmCtx, res);
 826     }
 827
 828     OIC_LOG(DEBUG, TAG, "OUT OwnershipInformationHandler");
 829
 830 exit:
 831     return  OC_STACK_DELETE_TRANSACTION;
 832 }
 833
 834 /**
 835  * Response handler of update provisioning status.
 836  *
 837  * @param[in] ctx             ctx value passed to callback from calling function.
 838  * @param[in] UNUSED          handle to an invocation
 839  * @param[in] clientResponse  Response from queries to remote servers.
 840  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 841  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 842  */
 843 static OCStackApplicationResult ProvisioningStatusHandler(void *ctx, OCDoHandle UNUSED,
 844                                                        OCClientResponse *clientResponse)
 845 {
 846     OIC_LOG_V(INFO, TAG, "IN ProvisioningStatusHandler.");
 847
 848     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 849     VERIFY_NON_NULL(TAG, ctx, ERROR);
 850
 851     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 852     (void)UNUSED;
 853     OCStackResult res = OC_STACK_OK;
 854
 855     if(OC_STACK_OK == clientResponse->result)
 856     {
 857         if(otmCtx && otmCtx->selectedDeviceInfo)
 858         {
 859             OIC_LOG(INFO, TAG, "Device state is in Ready for Provisionig.");
 860
 861             res = PostNormalOperationStatus(otmCtx);
 862             if(OC_STACK_OK != res)
 863             {
 864                 OIC_LOG(ERROR, TAG, "Failed to update pstat");
 865                 SetResult(otmCtx, res);
 866             }
 867         }
 868     }
 869     else
 870     {
 871         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 872                             clientResponse->result);
 873         SetResult(otmCtx, clientResponse->result);
 874     }
 875
 876 exit:
 877     OIC_LOG_V(INFO, TAG, "OUT ProvisioningStatusHandler.");
 878     return OC_STACK_DELETE_TRANSACTION;
 879 }
 880
 881 /**
 882  * Response handler of update provisioning status to Ready for Normal..
 883  *
 884  * @param[in] ctx             ctx value passed to callback from calling function.
 885  * @param[in] UNUSED          handle to an invocation
 886  * @param[in] clientResponse  Response from queries to remote servers.
 887  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 888  *          and OC_STACK_KEEP_TRANSACTION to keep it.
 889  */
 890 static OCStackApplicationResult ReadyForNomalStatusHandler(void *ctx, OCDoHandle UNUSED,
 891                                                        OCClientResponse *clientResponse)
 892 {
 893     OIC_LOG_V(INFO, TAG, "IN ReadyForNomalStatusHandler.");
 894
 895     VERIFY_NON_NULL(TAG, clientResponse, ERROR);
 896     VERIFY_NON_NULL(TAG, ctx, ERROR);
 897
 898     OTMContext_t* otmCtx = (OTMContext_t*) ctx;
 899     (void)UNUSED;
 900
 901     if (OC_STACK_OK == clientResponse->result)
 902     {
 903         OIC_LOG(INFO, TAG, "Device state is in Ready for Normal Operation.");
 904         OCStackResult res = PDMAddDevice(&otmCtx->selectedDeviceInfo->doxm->deviceID);
 905          if (OC_STACK_OK == res)
 906          {
 907                 OIC_LOG_V(INFO, TAG, "Add device's UUID in PDM_DB");
 908                 SetResult(otmCtx, OC_STACK_OK);
 909                 return OC_STACK_DELETE_TRANSACTION;
 910          }
 911           else
 912          {
 913               OIC_LOG(ERROR, TAG, "Ownership transfer is complete but adding information to DB is failed.");
 914          }
 915     }
 916     else
 917     {
 918         OIC_LOG_V(INFO, TAG, "Error occured in provisionDefaultACLCB :: %d\n",
 919                             clientResponse->result);
 920         SetResult(otmCtx, clientResponse->result);
 921     }
 922
 923 exit:
 924     OIC_LOG_V(INFO, TAG, "OUT ReadyForNomalStatusHandler.");
 925     return OC_STACK_DELETE_TRANSACTION;
 926 }
 927
 928 static OCStackResult PutOwnerCredential(OTMContext_t* otmCtx)
 929 {
 930     OIC_LOG(DEBUG, TAG, "IN PutOwnerCredential");
 931
 932     if(!otmCtx || !otmCtx->selectedDeviceInfo)
 933     {
 934         OIC_LOG(ERROR, TAG, "Invalid parameters");
 935         return OC_STACK_INVALID_PARAM;
 936     }
 937
 938     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
 939     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 940
 941     if(!PMGenerateQuery(true,
 942                         deviceInfo->endpoint.addr, deviceInfo->securePort,
 943                         deviceInfo->connType,
 944                         query, sizeof(query), OIC_RSRC_CRED_URI))
 945     {
 946         OIC_LOG(ERROR, TAG, "PutOwnerCredential : Failed to generate query");
 947         return OC_STACK_ERROR;
 948     }
 949     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 950     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 951     if(!secPayload)
 952     {
 953         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 954         return OC_STACK_NO_MEMORY;
 955     }
 956
 957     //Generate owner credential for new device
 958     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 959     const OicSecCred_t* ownerCredential = GetCredResourceData(&(deviceInfo->doxm->deviceID));
 960     if(!ownerCredential)
 961     {
 962         OIC_LOG(ERROR, TAG, "Can not find OwnerPSK.");
 963         return OC_STACK_NO_RESOURCE;
 964     }
 965
 966     OicUuid_t credSubjectId = {.id={0}};
 967     if(OC_STACK_OK == GetDoxmDeviceID(&credSubjectId))
 968     {
 969         OicSecCred_t newCredential;
 970         memcpy(&newCredential, ownerCredential, sizeof(OicSecCred_t));
 971         newCredential.next = NULL;
 972
 973         //Set subject ID as PT's ID
 974         memcpy(&(newCredential.subject), &credSubjectId, sizeof(OicUuid_t));
 975
 976         //Fill private data as empty string
 977         newCredential.privateData.data = "";
 978         newCredential.privateData.len = 0;
 979         newCredential.privateData.encoding = ownerCredential->privateData.encoding;
 980 #ifdef __WITH_X509__
 981         newCredential.publicData.data = NULL;
 982         newCredential.publicData.len = 0;
 983 #endif
 984         int secureFlag = 0;
 985         //Send owner credential to new device : PUT /oic/sec/cred [ owner credential ]
 986         if (OC_STACK_OK != CredToCBORPayload(&newCredential, &secPayload->securityData,
 987                                         &secPayload->payloadSize, secureFlag))
 988         {
 989             OICFree(secPayload);
 990             OIC_LOG(ERROR, TAG, "Error while converting bin to cbor.");
 991             return OC_STACK_ERROR;
 992         }
 993         OIC_LOG(DEBUG, TAG, "Cred Payload:");
 994         OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 995
 996         OCCallbackData cbData;
 997         cbData.cb = &OwnerCredentialHandler;
 998         cbData.context = (void *)otmCtx;
 999         cbData.cd = NULL;
1000         OCStackResult res = OCDoResource(NULL, OC_REST_PUT, query,
1001                                          &deviceInfo->endpoint, (OCPayload*)secPayload,
1002                                          deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1003         if (res != OC_STACK_OK)
1004         {
1005             OIC_LOG(ERROR, TAG, "OCStack resource error");
1006         }
1007     }
1008     else
1009     {
1010         OIC_LOG(ERROR, TAG, "Failed to read DOXM device ID.");
1011         return OC_STACK_NO_RESOURCE;
1012     }
1013
1014     OIC_LOG(DEBUG, TAG, "OUT PutOwnerCredential");
1015
1016     return OC_STACK_OK;
1017 }
1018
1019 static OCStackResult PostOwnerTransferModeToResource(OTMContext_t* otmCtx)
1020 {
1021     OIC_LOG(DEBUG, TAG, "IN PostOwnerTransferModeToResource");
1022
1023     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1024     {
1025         OIC_LOG(ERROR, TAG, "Invalid parameters");
1026         return OC_STACK_INVALID_PARAM;
1027     }
1028
1029     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1030     OicSecOxm_t selectedOxm = deviceInfo->doxm->oxmSel;
1031     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1032
1033     if(!PMGenerateQuery(false,
1034                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1035                         deviceInfo->connType,
1036                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1037     {
1038         OIC_LOG(ERROR, TAG, "PostOwnerTransferModeToResource : Failed to generate query");
1039         return OC_STACK_ERROR;
1040     }
1041     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1042     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1043     if(!secPayload)
1044     {
1045         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1046         return OC_STACK_NO_MEMORY;
1047     }
1048     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1049     OCStackResult res = g_OTMDatas[selectedOxm].createSelectOxmPayloadCB(otmCtx,
1050             &secPayload->securityData, &secPayload->payloadSize);
1051     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1052     {
1053         OCPayloadDestroy((OCPayload *)secPayload);
1054         OIC_LOG(ERROR, TAG, "Error while converting bin to cbor");
1055         return OC_STACK_ERROR;
1056     }
1057
1058     OCCallbackData cbData;
1059     cbData.cb = &OwnerTransferModeHandler;
1060     cbData.context = (void *)otmCtx;
1061     cbData.cd = NULL;
1062     res = OCDoResource(NULL, OC_REST_POST, query,
1063                        &deviceInfo->endpoint, (OCPayload *)secPayload,
1064                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1065     if (res != OC_STACK_OK)
1066     {
1067         OIC_LOG(ERROR, TAG, "OCStack resource error");
1068     }
1069
1070     OIC_LOG(DEBUG, TAG, "OUT PostOwnerTransferModeToResource");
1071
1072     return res;
1073 }
1074
1075 static OCStackResult GetProvisioningStatusResource(OTMContext_t* otmCtx)
1076 {
1077     OIC_LOG(DEBUG, TAG, "IN GetProvisioningStatusResource");
1078
1079     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1080     {
1081         OIC_LOG(ERROR, TAG, "Invailed parameters");
1082         return OC_STACK_INVALID_PARAM;
1083     }
1084
1085     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1086     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1087     if(!PMGenerateQuery(false,
1088                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1089                         deviceInfo->connType,
1090                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1091     {
1092         OIC_LOG(ERROR, TAG, "GetProvisioningStatusResource : Failed to generate query");
1093         return OC_STACK_ERROR;
1094     }
1095     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1096
1097     OCCallbackData cbData;
1098     cbData.cb = &ListMethodsHandler;
1099     cbData.context = (void *)otmCtx;
1100     cbData.cd = NULL;
1101     OCStackResult res = OCDoResource(NULL, OC_REST_GET, query, NULL, NULL,
1102                                      deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1103     if (res != OC_STACK_OK)
1104     {
1105         OIC_LOG(ERROR, TAG, "OCStack resource error");
1106     }
1107
1108     OIC_LOG(DEBUG, TAG, "OUT GetProvisioningStatusResource");
1109
1110     return res;
1111 }
1112
1113 static OCStackResult PostOwnerUuid(OTMContext_t* otmCtx)
1114 {
1115     OIC_LOG(DEBUG, TAG, "IN PostOwnerUuid");
1116
1117     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1118     {
1119         OIC_LOG(ERROR, TAG, "Invailed parameters");
1120         return OC_STACK_INVALID_PARAM;
1121     }
1122
1123     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1124     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1125     if(!PMGenerateQuery(true,
1126                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1127                         deviceInfo->connType,
1128                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1129     {
1130         OIC_LOG(ERROR, TAG, "PostOwnerUuid : Failed to generate query");
1131         return OC_STACK_ERROR;
1132     }
1133     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1134
1135     //Post PT's uuid to new device
1136     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1137     if(!secPayload)
1138     {
1139         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1140         return OC_STACK_NO_MEMORY;
1141     }
1142     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1143     OCStackResult res =  g_OTMDatas[deviceInfo->doxm->oxmSel].createOwnerTransferPayloadCB(
1144             otmCtx, &secPayload->securityData, &secPayload->payloadSize);
1145     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1146     {
1147         OCPayloadDestroy((OCPayload *)secPayload);
1148         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to cbor.");
1149         return OC_STACK_INVALID_PARAM;
1150     }
1151     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1152
1153     OCCallbackData cbData;
1154     cbData.cb = &OwnerUuidUpdateHandler;
1155     cbData.context = (void *)otmCtx;
1156     cbData.cd = NULL;
1157
1158     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload *)secPayload,
1159             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1160     if (res != OC_STACK_OK)
1161     {
1162         OIC_LOG(ERROR, TAG, "OCStack resource error");
1163     }
1164
1165     OIC_LOG(DEBUG, TAG, "OUT PostOwnerUuid");
1166
1167     return res;
1168 }
1169
1170 static OCStackResult PostOwnershipInformation(OTMContext_t* otmCtx)
1171 {
1172     OIC_LOG(DEBUG, TAG, "IN PostOwnershipInformation");
1173
1174     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1175     {
1176         OIC_LOG(ERROR, TAG, "Invailed parameters");
1177         return OC_STACK_INVALID_PARAM;
1178     }
1179
1180     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1181     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1182     if(!PMGenerateQuery(true,
1183                         deviceInfo->endpoint.addr, deviceInfo->securePort,
1184                         deviceInfo->connType,
1185                         query, sizeof(query), OIC_RSRC_DOXM_URI))
1186     {
1187         OIC_LOG(ERROR, TAG, "PostOwnershipInformation : Failed to generate query");
1188         return OC_STACK_ERROR;
1189     }
1190     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1191
1192     //OwnershipInformationHandler
1193     OCSecurityPayload *secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1194     if (!secPayload)
1195     {
1196         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1197         return OC_STACK_NO_MEMORY;
1198     }
1199
1200     otmCtx->selectedDeviceInfo->doxm->owned = true;
1201
1202     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1203     OCStackResult res = DoxmToCBORPayload(otmCtx->selectedDeviceInfo->doxm,
1204             &secPayload->securityData, &secPayload->payloadSize);
1205     if (OC_STACK_OK != res && NULL == secPayload->securityData)
1206     {
1207         OCPayloadDestroy((OCPayload *)secPayload);
1208         OIC_LOG(ERROR, TAG, "Error while converting doxm bin to json");
1209         return OC_STACK_INVALID_PARAM;
1210     }
1211
1212     OCCallbackData cbData;
1213     cbData.cb = &OwnershipInformationHandler;
1214     cbData.context = (void *)otmCtx;
1215     cbData.cd = NULL;
1216
1217     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1218                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1219     if (res != OC_STACK_OK)
1220     {
1221         OIC_LOG(ERROR, TAG, "OCStack resource error");
1222     }
1223
1224     OIC_LOG(DEBUG, TAG, "OUT PostOwnershipInformation");
1225
1226     return res;
1227 }
1228
1229 static OCStackResult PostUpdateOperationMode(OTMContext_t* otmCtx)
1230 {
1231     OIC_LOG(DEBUG, TAG, "IN PostUpdateOperationMode");
1232
1233     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1234     {
1235         return OC_STACK_INVALID_PARAM;
1236     }
1237
1238     OCProvisionDev_t* deviceInfo = otmCtx->selectedDeviceInfo;
1239     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1240     if(!PMGenerateQuery(false,
1241                         deviceInfo->endpoint.addr, deviceInfo->endpoint.port,
1242                         deviceInfo->connType,
1243                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1244     {
1245         OIC_LOG(ERROR, TAG, "PostUpdateOperationMode : Failed to generate query");
1246         return OC_STACK_ERROR;
1247     }
1248     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1249
1250     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1251     if(!secPayload)
1252     {
1253         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1254         return OC_STACK_NO_MEMORY;
1255     }
1256     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1257     OCStackResult res = PstatToCBORPayload(deviceInfo->pstat, &secPayload->securityData,
1258                                            &secPayload->payloadSize);
1259    if (OC_STACK_OK != res)
1260     {
1261         OCPayloadDestroy((OCPayload *)secPayload);
1262         OIC_LOG(ERROR, TAG, "Error while converting pstat to cbor.");
1263         return OC_STACK_INVALID_PARAM;
1264     }
1265
1266     OCCallbackData cbData;
1267     cbData.cb = &OperationModeUpdateHandler;
1268     cbData.context = (void *)otmCtx;
1269     cbData.cd = NULL;
1270     res = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload *)secPayload,
1271                        deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1272     if (res != OC_STACK_OK)
1273     {
1274         OIC_LOG(ERROR, TAG, "OCStack resource error");
1275     }
1276
1277     OIC_LOG(DEBUG, TAG, "OUT PostUpdateOperationMode");
1278
1279     return res;
1280 }
1281
1282 static OCStackResult StartOwnershipTransfer(void* ctx, OCProvisionDev_t* selectedDevice)
1283 {
1284     OIC_LOG(INFO, TAG, "IN StartOwnershipTransfer");
1285     OTMContext_t* otmCtx = (OTMContext_t*)ctx;
1286     otmCtx->selectedDeviceInfo = selectedDevice;
1287
1288     //Set to the lowest level OxM, and then find more higher level OxM.
1289     OCStackResult res = SelectProvisioningMethod(selectedDevice->doxm->oxm,
1290                                                  selectedDevice->doxm->oxmLen,
1291                                                  &selectedDevice->doxm->oxmSel);
1292     if(OC_STACK_OK != res)
1293     {
1294         OIC_LOG(ERROR, TAG, "Failed to select the provisioning method");
1295         SetResult(otmCtx, res);
1296         return res;
1297     }
1298     OIC_LOG_V(DEBUG, TAG, "Selected provisoning method = %d", selectedDevice->doxm->oxmSel);
1299
1300     //Send Req: POST /oic/sec/doxm [{..."OxmSel" :g_OTMDatas[Index of Selected OxM].OXMString,...}]
1301     res = PostOwnerTransferModeToResource(otmCtx);
1302     if(OC_STACK_OK != res)
1303     {
1304         OIC_LOG(WARNING, TAG, "Failed to select the provisioning method");
1305         SetResult(otmCtx, res);
1306         return res;
1307     }
1308
1309     //Register DTLS event handler to catch the dtls event while handshake
1310     if(CA_STATUS_OK != CARegisterDTLSHandshakeCallback(DTLSHandshakeCB))
1311     {
1312         OIC_LOG(WARNING, TAG, "StartOwnershipTransfer : Failed to register DTLS handshake callback.");
1313     }
1314
1315     OIC_LOG(INFO, TAG, "OUT StartOwnershipTransfer");
1316
1317     return res;
1318
1319 }
1320
1321 OCStackResult OTMSetOwnershipTransferCallbackData(OicSecOxm_t oxmType, OTMCallbackData_t* data)
1322 {
1323     OIC_LOG(DEBUG, TAG, "IN OTMSetOwnerTransferCallbackData");
1324
1325     if(!data)
1326     {
1327         OIC_LOG(ERROR, TAG, "OTMSetOwnershipTransferCallbackData : Invalid parameters");
1328         return OC_STACK_INVALID_PARAM;
1329     }
1330     if(oxmType >= OIC_OXM_COUNT)
1331     {
1332         OIC_LOG(INFO, TAG, "Unknow ownership transfer method");
1333         return OC_STACK_INVALID_PARAM;
1334     }
1335
1336     g_OTMDatas[oxmType].loadSecretCB= data->loadSecretCB;
1337     g_OTMDatas[oxmType].createSecureSessionCB = data->createSecureSessionCB;
1338     g_OTMDatas[oxmType].createSelectOxmPayloadCB = data->createSelectOxmPayloadCB;
1339     g_OTMDatas[oxmType].createOwnerTransferPayloadCB = data->createOwnerTransferPayloadCB;
1340
1341     OIC_LOG(DEBUG, TAG, "OUT OTMSetOwnerTransferCallbackData");
1342
1343     return OC_STACK_OK;
1344 }
1345
1346 /**
1347  * NOTE : Unowned discovery should be done before performing OTMDoOwnershipTransfer
1348  */
1349 OCStackResult OTMDoOwnershipTransfer(void* ctx,
1350                                      OCProvisionDev_t *selectedDevicelist,
1351                                      OCProvisionResultCB resultCallback)
1352 {
1353     OIC_LOG(DEBUG, TAG, "IN OTMDoOwnershipTransfer");
1354
1355     if (NULL == selectedDevicelist)
1356     {
1357         return OC_STACK_INVALID_PARAM;
1358     }
1359     if (NULL == resultCallback)
1360     {
1361         return OC_STACK_INVALID_CALLBACK;
1362     }
1363
1364     OTMContext_t* otmCtx = (OTMContext_t*)OICCalloc(1,sizeof(OTMContext_t));
1365     if(!otmCtx)
1366     {
1367         OIC_LOG(ERROR, TAG, "Failed to create OTM Context");
1368         return OC_STACK_NO_MEMORY;
1369     }
1370     otmCtx->ctxResultCallback = resultCallback;
1371     otmCtx->ctxHasError = false;
1372     otmCtx->userCtx = ctx;
1373     OCProvisionDev_t* pCurDev = selectedDevicelist;
1374
1375     //Counting number of selected devices.
1376     otmCtx->ctxResultArraySize = 0;
1377     while(NULL != pCurDev)
1378     {
1379         otmCtx->ctxResultArraySize++;
1380         pCurDev = pCurDev->next;
1381     }
1382
1383     otmCtx->ctxResultArray =
1384         (OCProvisionResult_t*)OICCalloc(otmCtx->ctxResultArraySize, sizeof(OCProvisionResult_t));
1385     if(NULL == otmCtx->ctxResultArray)
1386     {
1387         OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Failed to memory allocation");
1388         OICFree(otmCtx);
1389         return OC_STACK_NO_MEMORY;
1390     }
1391     pCurDev = selectedDevicelist;
1392
1393     OCStackResult res = OC_STACK_OK;
1394     //Fill the device UUID for result array.
1395     for(size_t devIdx = 0; devIdx < otmCtx->ctxResultArraySize; devIdx++)
1396     {
1397         //Checking duplication of Device ID.
1398         bool isDuplicate = true;
1399         res = PDMIsDuplicateDevice(&pCurDev->doxm->deviceID, &isDuplicate);
1400         if (OC_STACK_OK != res)
1401         {
1402             goto error;
1403         }
1404         if (isDuplicate)
1405         {
1406             OIC_LOG(ERROR, TAG, "OTMDoOwnershipTransfer : Device ID is duplicated");
1407             res = OC_STACK_INVALID_PARAM;
1408             goto error;
1409         }
1410         memcpy(otmCtx->ctxResultArray[devIdx].deviceId.id,
1411                pCurDev->doxm->deviceID.id,
1412                UUID_LENGTH);
1413         otmCtx->ctxResultArray[devIdx].res = OC_STACK_CONTINUE;
1414         pCurDev = pCurDev->next;
1415     }
1416
1417     StartOwnershipTransfer(otmCtx, selectedDevicelist);
1418
1419     OIC_LOG(DEBUG, TAG, "OUT OTMDoOwnershipTransfer");
1420     return OC_STACK_OK;
1421
1422 error:
1423     OICFree(otmCtx->ctxResultArray);
1424     OICFree(otmCtx);
1425     return res;
1426 }
1427
1428 OCStackResult PostProvisioningStatus(OTMContext_t* otmCtx)
1429 {
1430     OIC_LOG(INFO, TAG, "IN PostProvisioningStatus");
1431
1432     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1433     {
1434         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1435         return OC_STACK_INVALID_PARAM;
1436     }
1437
1438     //Change the TAKE_OWNER bit of CM to 0.
1439     otmCtx->selectedDeviceInfo->pstat->cm &= (~TAKE_OWNER);
1440
1441     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1442     if (!secPayload)
1443     {
1444         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1445         return OC_STACK_NO_MEMORY;
1446     }
1447     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1448     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1449             &secPayload->securityData, &secPayload->payloadSize))
1450     {
1451         OCPayloadDestroy((OCPayload *)secPayload);
1452         return OC_STACK_INVALID_JSON;
1453     }
1454     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1455     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1456
1457     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1458     if(!PMGenerateQuery(true,
1459                         otmCtx->selectedDeviceInfo->endpoint.addr,
1460                         otmCtx->selectedDeviceInfo->securePort,
1461                         otmCtx->selectedDeviceInfo->connType,
1462                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1463     {
1464         OIC_LOG(ERROR, TAG, "PostProvisioningStatus : Failed to generate query");
1465         return OC_STACK_ERROR;
1466     }
1467     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1468
1469     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1470     cbData.cb = &ProvisioningStatusHandler;
1471     cbData.context = (void*)otmCtx;
1472     cbData.cd = NULL;
1473     OCStackResult ret = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1474             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1475     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1476     if (ret != OC_STACK_OK)
1477     {
1478         OIC_LOG(ERROR, TAG, "OCStack resource error");
1479     }
1480
1481     OIC_LOG(INFO, TAG, "OUT PostProvisioningStatus");
1482
1483     return ret;
1484 }
1485
1486 OCStackResult PostNormalOperationStatus(OTMContext_t* otmCtx)
1487 {
1488     OIC_LOG(INFO, TAG, "IN PostNormalOperationStatus");
1489
1490     if(!otmCtx || !otmCtx->selectedDeviceInfo)
1491     {
1492         OIC_LOG(ERROR, TAG, "OTMContext is NULL");
1493         return OC_STACK_INVALID_PARAM;
1494     }
1495
1496     //Set isop to true.
1497     otmCtx->selectedDeviceInfo->pstat->isOp = true;
1498
1499     OCSecurityPayload *secPayload = (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1500     if (!secPayload)
1501     {
1502         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1503         return OC_STACK_NO_MEMORY;
1504     }
1505     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1506     if (OC_STACK_OK != PstatToCBORPayload(otmCtx->selectedDeviceInfo->pstat,
1507             &secPayload->securityData, &secPayload->payloadSize))
1508     {
1509         OCPayloadDestroy((OCPayload *)secPayload);
1510         return OC_STACK_INVALID_JSON;
1511     }
1512     OIC_LOG(DEBUG, TAG, "Created payload for chage to Provisiong state");
1513     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1514
1515     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1516     if(!PMGenerateQuery(true,
1517                         otmCtx->selectedDeviceInfo->endpoint.addr,
1518                         otmCtx->selectedDeviceInfo->securePort,
1519                         otmCtx->selectedDeviceInfo->connType,
1520                         query, sizeof(query), OIC_RSRC_PSTAT_URI))
1521     {
1522         OIC_LOG(ERROR, TAG, "PostNormalOperationStatus : Failed to generate query");
1523         return OC_STACK_ERROR;
1524     }
1525     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1526
1527     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
1528     cbData.cb = &ReadyForNomalStatusHandler;
1529     cbData.context = (void*)otmCtx;
1530     cbData.cd = NULL;
1531     OCStackResult ret = OCDoResource(NULL, OC_REST_POST, query, 0, (OCPayload*)secPayload,
1532             otmCtx->selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1533     OIC_LOG_V(INFO, TAG, "OCDoResource returned: %d",ret);
1534     if (ret != OC_STACK_OK)
1535     {
1536         OIC_LOG(ERROR, TAG, "OCStack resource error");
1537     }
1538
1539     OIC_LOG(INFO, TAG, "OUT PostNormalOperationStatus");
1540
1541     return ret;
1542 }