resource/csdk/security/src/doxmresource.c

   1 //******************************************************************
   2 //
   3 // Copyright 2015 Intel Mobile Communications GmbH 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 #include "iotivity_config.h"
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #ifdef HAVE_STRINGS_H
  25 #include <strings.h>
  26 #endif
  27
  28 #include "ocstack.h"
  29 #include "oic_malloc.h"
  30 #include "payload_logging.h"
  31 #include "utlist.h"
  32 #include "ocrandom.h"
  33 #include "ocpayload.h"
  34 #include "ocpayloadcbor.h"
  35 #include "cainterface.h"
  36 #include "ocserverrequest.h"
  37 #include "resourcemanager.h"
  38 #include "doxmresource.h"
  39 #include "pstatresource.h"
  40 #include "aclresource.h"
  41 #include "amaclresource.h"
  42 #include "pconfresource.h"
  43 #include "dpairingresource.h"
  44 #include "psinterface.h"
  45 #include "srmresourcestrings.h"
  46 #include "securevirtualresourcetypes.h"
  47 #include "credresource.h"
  48 #include "srmutility.h"
  49 #include "pinoxmcommon.h"
  50 #include "oxmverifycommon.h"
  51 #include "octhread.h"
  52 #include "oic_time.h"
  53 #include "oic_string.h"
  54
  55 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
  56 #include "pkix_interface.h"
  57 #include "ca_adapter_net_ssl.h"
  58 #endif
  59
  60 #define TAG  "OIC_SRM_DOXM"
  61 #define CHAR_ZERO ('0')
  62
  63 /** Default cbor payload size. This value is increased in case of CborErrorOutOfMemory.
  64  * The value of payload size is increased until reaching belox max cbor size. */
  65 static const uint16_t CBOR_SIZE = 512;
  66
  67 /** Max cbor size payload. */
  68 static const uint16_t CBOR_MAX_SIZE = 4400;
  69
  70 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
  71 /** MAX uuid seed size */
  72 #define MAX_UUID_SEED_SIZE (64)
  73 /** MIN uuid seed size */
  74 #define MIN_UUID_SEED_SIZE (8)
  75
  76 /** Buffer to save the seed of device UUID */
  77 static uint8_t gUuidSeed[MAX_UUID_SEED_SIZE];
  78 static size_t gUuidSeedSize = 0;
  79 #endif
  80
  81 #ifdef MULTIPLE_OWNER
  82 #define MAX_SUBOWNER_SIZE (64)
  83 #define MIN_SUBOWNER_SIZE (1)
  84 #define DEFAULT_SUBOWNER_SIZE (32)
  85
  86 static size_t gMaxSubOwnerSize = DEFAULT_SUBOWNER_SIZE;
  87 #endif
  88
  89 typedef enum ConfirmState{
  90     CONFIRM_STATE_READY = 0,
  91     CONFIRM_STATE_WAIT = 1,
  92     CONFIRM_STATE_ACCEPTED = 2,
  93     CONFIRM_STATE_DENIED = 3
  94 }ConfirmState_t;
  95
  96 static OicSecDoxm_t        *gDoxm = NULL;
  97 static oc_mutex            g_mutexDoxm = NULL;
  98 static bool                g_isDoxmNull = false;
  99 static OCResourceHandle    gDoxmHandle = NULL;
 100 static oc_mutex            g_mutexWait;
 101 static oc_thread           g_waitConfirmThreadId;
 102 oc_cond                    g_condWait;
 103 static InformOxmSelectedCallback_t g_InformOxmSelectedCallback = NULL;
 104 static bool                g_isConfirmResult;
 105
 106 static OicSecOxm_t gOicSecDoxmJustWorks = OIC_JUST_WORKS;
 107 static OicSecDoxm_t gDefaultDoxm =
 108 {
 109     NULL,                   /* OicUrn_t *oxmType */
 110     0,                      /* size_t oxmTypeLen */
 111     &gOicSecDoxmJustWorks,  /* uint16_t *oxm */
 112     1,                      /* size_t oxmLen */
 113     OIC_JUST_WORKS,         /* uint16_t oxmSel */
 114     SYMMETRIC_PAIR_WISE_KEY,/* OicSecCredType_t sct */
 115     false,                  /* bool owned */
 116     {.id = {0}},            /* OicUuid_t deviceID */
 117     false,                  /* bool dpc */
 118     {.id = {0}},            /* OicUuid_t owner */
 119 #ifdef MULTIPLE_OWNER
 120     NULL,                   /* OicSecSubOwner_t sub-owner list */
 121     NULL,                   /* OicSecMomType_t multiple owner mode */
 122 #endif //MULTIPLE_OWNER
 123     {.id = {0}},            /* OicUuid_t rownerID */
 124 };
 125
 126 static uint16_t gConfirmMsgId = 0;
 127 static ConfirmState_t gConfirmState = CONFIRM_STATE_READY;
 128
 129 static uint8_t gEmptyUuid[UUID_LENGTH] = {0};
 130
 131 /**
 132  * This method is internal method.
 133  * the param roParsed is optionally used to know whether cborPayload has
 134  * at least read only property value or not.
 135  */
 136 static OCStackResult CBORPayloadToDoxmBin(const uint8_t *cborPayload, size_t size,
 137                                 OicSecDoxm_t **doxm, bool *roParsed);
 138
 139 void DeleteDoxmBinData(OicSecDoxm_t* doxm)
 140 {
 141     if (doxm)
 142     {
 143         //Clean oxmType
 144         for (size_t i = 0; i < doxm->oxmTypeLen; i++)
 145         {
 146             OICFree(doxm->oxmType[i]);
 147         }
 148         OICFree(doxm->oxmType);
 149
 150         //clean oxm
 151         OICFree(doxm->oxm);
 152
 153 #ifdef MULTIPLE_OWNER
 154         //clean mom
 155         OICFree(doxm->mom);
 156
 157         //clean sub-owner list
 158         if(NULL != doxm->subOwners)
 159         {
 160             OicSecSubOwner_t* subowner = NULL;
 161             OicSecSubOwner_t* temp = NULL;
 162             LL_FOREACH_SAFE(doxm->subOwners, subowner, temp)
 163             {
 164                 LL_DELETE(doxm->subOwners, subowner);
 165                 OICFree(subowner);
 166             }
 167         }
 168 #endif //MULTIPLE_OWNER
 169
 170         //Clean doxm itself
 171         OICFree(doxm);
 172     }
 173
 174     if(g_mutexDoxm)
 175     {
 176         oc_mutex_free(g_mutexDoxm);
 177         g_mutexDoxm = NULL;
 178     }
 179 }
 180
 181 OCStackResult DoxmToCBORPayload(const OicSecDoxm_t *doxm, uint8_t **payload, size_t *size,
 182                                 bool rwOnly)
 183 {
 184     if (NULL == doxm || NULL == payload || NULL != *payload || NULL == size)
 185     {
 186         return OC_STACK_INVALID_PARAM;
 187     }
 188     size_t cborLen = *size;
 189     if (0 == cborLen)
 190     {
 191         cborLen = CBOR_SIZE;
 192     }
 193     *payload = NULL;
 194     *size = 0;
 195
 196     OCStackResult ret = OC_STACK_ERROR;
 197
 198     CborEncoder encoder;
 199     CborEncoder doxmMap;
 200     char* strUuid = NULL;
 201
 202     int64_t cborEncoderResult = CborNoError;
 203
 204     uint8_t *outPayload = (uint8_t *)OICCalloc(1, cborLen);
 205     VERIFY_NON_NULL(TAG, outPayload, ERROR);
 206     cbor_encoder_init(&encoder, outPayload, cborLen, 0);
 207
 208     cborEncoderResult = cbor_encoder_create_map(&encoder, &doxmMap, CborIndefiniteLength);
 209     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Map.");
 210
 211     //OxmType -- Not Mandatory
 212     if (doxm->oxmTypeLen > 0)
 213     {
 214         CborEncoder oxmType;
 215         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXM_TYPE_NAME,
 216             strlen(OIC_JSON_OXM_TYPE_NAME));
 217         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Tag.");
 218         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &oxmType, doxm->oxmTypeLen);
 219         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Array.");
 220
 221         for (size_t i = 0; i < doxm->oxmTypeLen; i++)
 222         {
 223             cborEncoderResult = cbor_encode_text_string(&oxmType, doxm->oxmType[i],
 224                 strlen(doxm->oxmType[i]));
 225             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Value.");
 226         }
 227         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &oxmType);
 228         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing oxmType.");
 229     }
 230
 231     //Oxm -- Not Mandatory
 232     if (doxm->oxmLen > 0 && false == rwOnly)
 233     {
 234         CborEncoder oxm;
 235         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXMS_NAME,
 236             strlen(OIC_JSON_OXMS_NAME));
 237         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Tag.");
 238         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &oxm, doxm->oxmLen);
 239         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Array.");
 240
 241         for (size_t i = 0; i < doxm->oxmLen; i++)
 242         {
 243             cborEncoderResult = cbor_encode_int(&oxm, doxm->oxm[i]);
 244             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Value");
 245         }
 246         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &oxm);
 247         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing oxmName.");
 248     }
 249
 250     //OxmSel -- Mandatory
 251     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXM_SEL_NAME,
 252         strlen(OIC_JSON_OXM_SEL_NAME));
 253     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Sel Tag.");
 254     cborEncoderResult = cbor_encode_int(&doxmMap, doxm->oxmSel);
 255     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Sel Value.");
 256
 257     //sct -- Mandatory
 258     if (false == rwOnly)
 259     {
 260         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_SUPPORTED_CRED_TYPE_NAME,
 261             strlen(OIC_JSON_SUPPORTED_CRED_TYPE_NAME));
 262         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Type Tag");
 263         cborEncoderResult = cbor_encode_int(&doxmMap, doxm->sct);
 264         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Type Value.");
 265     }
 266
 267     //Owned -- Mandatory
 268     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OWNED_NAME,
 269         strlen(OIC_JSON_OWNED_NAME));
 270     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owned Tag.");
 271     cborEncoderResult = cbor_encode_boolean(&doxmMap, doxm->owned);
 272     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owned Value.");
 273
 274     if (false == rwOnly)
 275     {
 276         //DeviceId -- Mandatory
 277         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_DEVICE_ID_NAME,
 278             strlen(OIC_JSON_DEVICE_ID_NAME));
 279         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Device Id Tag.");
 280         ret = ConvertUuidToStr(&doxm->deviceID, &strUuid);
 281         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 282         cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 283         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Device Id Value.");
 284         OICFree(strUuid);
 285         strUuid = NULL;
 286     }
 287
 288 #ifdef MULTIPLE_OWNER
 289     //Device SubOwnerID -- Not Mandatory
 290     if(doxm->subOwners)
 291     {
 292         size_t subOwnerLen = 0;
 293         OicSecSubOwner_t* subOwner = NULL;
 294         LL_FOREACH(doxm->subOwners, subOwner)
 295         {
 296             subOwnerLen++;
 297         }
 298
 299         CborEncoder subOwners;
 300         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_SUBOWNERID_NAME,
 301             strlen(OIC_JSON_SUBOWNERID_NAME));
 302         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwnerId Tag.");
 303         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &subOwners, subOwnerLen);
 304         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwner Array.");
 305
 306         subOwner = NULL;
 307         LL_FOREACH(doxm->subOwners, subOwner)
 308         {
 309             char* strUuid = NULL;
 310             ret = ConvertUuidToStr(&subOwner->uuid, &strUuid);
 311             VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 312             cborEncoderResult = cbor_encode_text_string(&subOwners, strUuid, strlen(strUuid));
 313             OICFree(strUuid);
 314             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwnerId Value");
 315         }
 316         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &subOwners);
 317         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing SubOwnerId.");
 318     }
 319
 320     //Multiple Owner Mode -- Not Mandatory
 321     if(doxm->mom)
 322     {
 323         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_MOM_NAME,
 324             strlen(OIC_JSON_MOM_NAME));
 325         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding mom Tag");
 326         cborEncoderResult = cbor_encode_int(&doxmMap, (int64_t)doxm->mom->mode);
 327         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding mom Value.");
 328     }
 329 #endif //MULTIPLE_OWNER
 330
 331     //devownerid -- Mandatory
 332     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_DEVOWNERID_NAME,
 333         strlen(OIC_JSON_DEVOWNERID_NAME));
 334     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owner Id Tag.");
 335     ret = ConvertUuidToStr(&doxm->owner, &strUuid);
 336     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 337     cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 338     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owner Id Value.");
 339     OICFree(strUuid);
 340     strUuid = NULL;
 341
 342     //ROwner -- Mandatory
 343     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_ROWNERID_NAME,
 344         strlen(OIC_JSON_ROWNERID_NAME));
 345     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ROwner Id Tag.");
 346     ret = ConvertUuidToStr(&doxm->rownerID, &strUuid);
 347     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 348     cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 349     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ROwner Id Value.");
 350     OICFree(strUuid);
 351     strUuid = NULL;
 352
 353     //RT -- Mandatory
 354     CborEncoder rtArray;
 355     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_RT_NAME,
 356             strlen(OIC_JSON_RT_NAME));
 357     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding RT Name Tag.");
 358     cborEncoderResult = cbor_encoder_create_array(&doxmMap, &rtArray, 1);
 359     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding RT Value.");
 360     for (size_t i = 0; i < 1; i++)
 361     {
 362         cborEncoderResult = cbor_encode_text_string(&rtArray, OIC_RSRC_TYPE_SEC_DOXM,
 363                 strlen(OIC_RSRC_TYPE_SEC_DOXM));
 364         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding RT Value.");
 365     }
 366     cborEncoderResult = cbor_encoder_close_container(&doxmMap, &rtArray);
 367     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing RT.");
 368
 369     //IF-- Mandatory
 370      CborEncoder ifArray;
 371      cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_IF_NAME,
 372              strlen(OIC_JSON_IF_NAME));
 373      VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding IF Name Tag.");
 374      cborEncoderResult = cbor_encoder_create_array(&doxmMap, &ifArray, 1);
 375      VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding IF Value.");
 376     for (size_t i = 0; i < 1; i++)
 377     {
 378         cborEncoderResult = cbor_encode_text_string(&ifArray, OC_RSRVD_INTERFACE_DEFAULT,
 379                 strlen(OC_RSRVD_INTERFACE_DEFAULT));
 380         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding IF Value.");
 381     }
 382     cborEncoderResult = cbor_encoder_close_container(&doxmMap, &ifArray);
 383     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing IF.");
 384
 385     cborEncoderResult = cbor_encoder_close_container(&encoder, &doxmMap);
 386     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing DoxmMap.");
 387
 388     if (CborNoError == cborEncoderResult)
 389     {
 390         *size = cbor_encoder_get_buffer_size(&encoder, outPayload);
 391         *payload = outPayload;
 392         ret = OC_STACK_OK;
 393     }
 394 exit:
 395     if ((CborErrorOutOfMemory == cborEncoderResult) && (cborLen < CBOR_MAX_SIZE))
 396     {
 397         OIC_LOG(DEBUG, TAG, "Memory getting reallocated.");
 398         // reallocate and try again!
 399         OICFree(outPayload);
 400         outPayload = NULL;
 401         // Since the allocated initial memory failed, double the memory.
 402         cborLen += cbor_encoder_get_buffer_size(&encoder, encoder.end);
 403         OIC_LOG_V(DEBUG, TAG, "Doxm reallocation size : %zd.", cborLen);
 404         cborEncoderResult = CborNoError;
 405         ret = DoxmToCBORPayload(doxm, payload, &cborLen, rwOnly);
 406         *size = cborLen;
 407     }
 408
 409     if ((CborNoError != cborEncoderResult) || (OC_STACK_OK != ret))
 410     {
 411        OICFree(outPayload);
 412        outPayload = NULL;
 413        *payload = NULL;
 414        *size = 0;
 415        ret = OC_STACK_ERROR;
 416     }
 417
 418     return ret;
 419 }
 420
 421 OCStackResult CBORPayloadToDoxm(const uint8_t *cborPayload, size_t size,
 422                                 OicSecDoxm_t **secDoxm)
 423 {
 424     return CBORPayloadToDoxmBin(cborPayload, size, secDoxm, NULL);
 425 }
 426
 427 static OCStackResult CBORPayloadToDoxmBin(const uint8_t *cborPayload, size_t size,
 428                                 OicSecDoxm_t **secDoxm, bool *roParsed)
 429 {
 430     if (NULL == cborPayload || NULL == secDoxm || NULL != *secDoxm || 0 == size)
 431     {
 432         return OC_STACK_INVALID_PARAM;
 433     }
 434
 435     OCStackResult ret = OC_STACK_ERROR;
 436     *secDoxm = NULL;
 437
 438     CborParser parser;
 439     CborError cborFindResult = CborNoError;
 440     char* strUuid = NULL;
 441     size_t len = 0;
 442     CborValue doxmCbor;
 443
 444     cbor_parser_init(cborPayload, size, 0, &parser, &doxmCbor);
 445     CborValue doxmMap;
 446     OicSecDoxm_t *doxm = (OicSecDoxm_t *)OICCalloc(1, sizeof(*doxm));
 447     VERIFY_NON_NULL(TAG, doxm, ERROR);
 448
 449     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXM_TYPE_NAME, &doxmMap);
 450     //OxmType -- not Mandatory
 451     if (CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 452     {
 453         CborValue oxmType;
 454
 455         cborFindResult = cbor_value_get_array_length(&doxmMap, &doxm->oxmTypeLen);
 456         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmTypeLen.");
 457         VERIFY_SUCCESS(TAG, doxm->oxmTypeLen != 0, ERROR);
 458
 459         doxm->oxmType = (OicUrn_t *)OICCalloc(doxm->oxmTypeLen, sizeof(*doxm->oxmType));
 460         VERIFY_NON_NULL(TAG, doxm->oxmType, ERROR);
 461
 462         cborFindResult = cbor_value_enter_container(&doxmMap, &oxmType);
 463         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering oxmType Array.")
 464
 465         int i = 0;
 466         size_t len = 0;
 467         while (cbor_value_is_valid(&oxmType) && cbor_value_is_text_string(&oxmType))
 468         {
 469             cborFindResult = cbor_value_dup_text_string(&oxmType, &doxm->oxmType[i++],
 470                                                         &len, NULL);
 471             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding omxType text string.");
 472             cborFindResult = cbor_value_advance(&oxmType);
 473             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing oxmType.");
 474         }
 475     }
 476
 477     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXMS_NAME, &doxmMap);
 478     //Oxm -- not Mandatory
 479     if (CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 480     {
 481         CborValue oxm;
 482         cborFindResult = cbor_value_get_array_length(&doxmMap, &doxm->oxmLen);
 483         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmName array Length.");
 484         VERIFY_SUCCESS(TAG, doxm->oxmLen != 0, ERROR);
 485
 486         doxm->oxm = (OicSecOxm_t *)OICCalloc(doxm->oxmLen, sizeof(*doxm->oxm));
 487         VERIFY_NON_NULL(TAG, doxm->oxm, ERROR);
 488
 489         cborFindResult = cbor_value_enter_container(&doxmMap, &oxm);
 490         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering oxmName Array.")
 491
 492         int i = 0;
 493         while (cbor_value_is_valid(&oxm) && cbor_value_is_integer(&oxm))
 494         {
 495             int tmp;
 496
 497             cborFindResult = cbor_value_get_int(&oxm, &tmp);
 498             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmName Value")
 499             doxm->oxm[i++] = (OicSecOxm_t)tmp;
 500             cborFindResult = cbor_value_advance(&oxm);
 501             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing oxmName.")
 502         }
 503
 504         if (roParsed)
 505         {
 506             *roParsed = true;
 507         }
 508     }
 509     else
 510     {
 511         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 512         doxm->oxm = (OicSecOxm_t *) OICCalloc(gDoxm->oxmLen, sizeof(*doxm->oxm));
 513         VERIFY_NON_NULL(TAG, doxm->oxm, ERROR);
 514         doxm->oxmLen = gDoxm->oxmLen;
 515         for (size_t i = 0; i < gDoxm->oxmLen; i++)
 516         {
 517             doxm->oxm[i] = gDoxm->oxm[i];
 518         }
 519     }
 520
 521     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXM_SEL_NAME, &doxmMap);
 522     if (CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 523     {
 524         int oxmSel;
 525
 526         cborFindResult = cbor_value_get_int(&doxmMap, &oxmSel);
 527         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Sel Name Value.")
 528         doxm->oxmSel = (OicSecOxm_t)oxmSel;
 529     }
 530     else // PUT/POST JSON may not have oxmsel so set it to the gDoxm->oxmSel
 531     {
 532         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 533         doxm->oxmSel = gDoxm->oxmSel;
 534     }
 535
 536     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_SUPPORTED_CRED_TYPE_NAME, &doxmMap);
 537     if (CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 538     {
 539         int sct;
 540
 541         cborFindResult = cbor_value_get_int(&doxmMap, &sct);
 542         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Sct Name Value.")
 543         doxm->sct = (OicSecCredType_t)sct;
 544
 545         if (roParsed)
 546         {
 547             *roParsed = true;
 548         }
 549     }
 550     else // PUT/POST JSON may not have sct so set it to the gDoxm->sct
 551     {
 552         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 553         doxm->sct = gDoxm->sct;
 554     }
 555
 556     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OWNED_NAME, &doxmMap);
 557     if (CborNoError == cborFindResult && cbor_value_is_boolean(&doxmMap))
 558     {
 559         cborFindResult = cbor_value_get_boolean(&doxmMap, &doxm->owned);
 560         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Owned Value.")
 561     }
 562     else // PUT/POST JSON may not have owned so set it to the gDomx->owned
 563     {
 564         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 565         doxm->owned = gDoxm->owned;
 566     }
 567
 568     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_DEVICE_ID_NAME, &doxmMap);
 569     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 570     {
 571         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 572         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Device Id Value.");
 573         ret = ConvertStrToUuid(strUuid , &doxm->deviceID);
 574         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 575         OICFree(strUuid);
 576         strUuid  = NULL;
 577     }
 578     else
 579     {
 580         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 581         memcpy(doxm->deviceID.id, &gDoxm->deviceID.id, sizeof(doxm->deviceID.id));
 582     }
 583
 584     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_DEVOWNERID_NAME, &doxmMap);
 585     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 586     {
 587         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 588         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Owner Value.");
 589         ret = ConvertStrToUuid(strUuid , &doxm->owner);
 590         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 591         OICFree(strUuid);
 592         strUuid  = NULL;
 593     }
 594     else
 595     {
 596         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 597         memcpy(doxm->owner.id, gDoxm->owner.id, sizeof(doxm->owner.id));
 598     }
 599
 600 #ifdef MULTIPLE_OWNER
 601     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_MOM_NAME, &doxmMap);
 602     if(CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 603     {
 604         int mode = 0;
 605         cborFindResult = cbor_value_get_int(&doxmMap, &mode);
 606         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding mom Name Value.")
 607         if(NULL == doxm->mom)
 608         {
 609             doxm->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
 610             VERIFY_NON_NULL(TAG, doxm->mom, ERROR);
 611         }
 612         doxm->mom->mode = (OicSecMomType_t)mode;
 613     }
 614     else if(NULL != gDoxm && NULL != gDoxm->mom)
 615     {
 616         // PUT/POST JSON may not have 'mom' so set it to the gDomx->mom
 617         if(NULL == doxm->mom)
 618         {
 619             doxm->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
 620             VERIFY_NON_NULL(TAG, doxm->mom, ERROR);
 621         }
 622         doxm->mom->mode = gDoxm->mom->mode;
 623     }
 624
 625     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_SUBOWNERID_NAME, &doxmMap);
 626     if(CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 627     {
 628         size_t subOwnerLen = 0;
 629         CborValue subOwnerCbor;
 630         cborFindResult = cbor_value_get_array_length(&doxmMap, &subOwnerLen);
 631         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SubOwner array Length.");
 632         VERIFY_SUCCESS(TAG, 0 != subOwnerLen, ERROR);
 633
 634         cborFindResult = cbor_value_enter_container(&doxmMap, &subOwnerCbor);
 635         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering SubOwner Array.")
 636
 637         while (cbor_value_is_valid(&subOwnerCbor) && cbor_value_is_text_string(&subOwnerCbor))
 638         {
 639             OCStackResult convertRes = OC_STACK_ERROR;
 640             OicSecSubOwner_t* subOwner = NULL;
 641             char* strUuid = NULL;
 642             size_t uuidLen = 0;
 643
 644             cborFindResult = cbor_value_dup_text_string(&subOwnerCbor, &strUuid, &uuidLen, NULL);
 645             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SubOwnerId Value");
 646
 647             subOwner = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
 648             VERIFY_NON_NULL(TAG, subOwner, ERROR);
 649
 650             convertRes = ConvertStrToUuid(strUuid, &subOwner->uuid);
 651             VERIFY_SUCCESS(TAG, OC_STACK_OK == convertRes, ERROR);
 652             subOwner->status = MOT_STATUS_DONE;
 653             LL_APPEND(doxm->subOwners, subOwner);
 654
 655             cborFindResult = cbor_value_advance(&subOwnerCbor);
 656             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing SubOwnerId.")
 657         }
 658     }
 659     else if(NULL != gDoxm && NULL != gDoxm->subOwners)
 660     {
 661         // PUT/POST JSON may not have 'subOwners' so set it to the gDomx->subOwners
 662         OicSecSubOwner_t* subOwnerItor = NULL;
 663         LL_FOREACH(gDoxm->subOwners, subOwnerItor)
 664         {
 665             OicSecSubOwner_t* subOwnerId = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
 666             VERIFY_NON_NULL(TAG, subOwnerId, ERROR);
 667
 668             memcpy(&subOwnerId->uuid, &subOwnerItor->uuid, sizeof(OicUuid_t));
 669             subOwnerId->status = MOT_STATUS_DONE;
 670
 671             LL_APPEND(doxm->subOwners, subOwnerId);
 672         }
 673     }
 674 #endif //MULTIPLE_OWNER
 675
 676     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_ROWNERID_NAME, &doxmMap);
 677     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 678     {
 679         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 680         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding ROwner Value.");
 681         ret = ConvertStrToUuid(strUuid , &doxm->rownerID);
 682         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 683         OICFree(strUuid);
 684         strUuid  = NULL;
 685     }
 686     else
 687     {
 688         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 689         memcpy(doxm->rownerID.id, gDoxm->rownerID.id, sizeof(doxm->rownerID.id));
 690     }
 691
 692     *secDoxm = doxm;
 693     ret = OC_STACK_OK;
 694
 695 exit:
 696     if (CborNoError != cborFindResult)
 697     {
 698         OIC_LOG (ERROR, TAG, "CBORPayloadToDoxm failed!!!");
 699         DeleteDoxmBinData(doxm);
 700         doxm = NULL;
 701         *secDoxm = NULL;
 702         ret = OC_STACK_ERROR;
 703     }
 704     return ret;
 705 }
 706
 707 /**
 708  * @todo document this function including why code might need to call this.
 709  * The current suspicion is that it's not being called as much as it should.
 710  */
 711 static bool UpdatePersistentStorage(OicSecDoxm_t * doxm)
 712 {
 713     bool bRet = false;
 714
 715     if (NULL != doxm)
 716     {
 717         // Convert Doxm data into CBOR for update to persistent storage
 718         uint8_t *payload = NULL;
 719         size_t size = 0;
 720         OCStackResult res = DoxmToCBORPayload(doxm, &payload, &size, false);
 721         if (payload && (OC_STACK_OK == res)
 722             && (OC_STACK_OK == UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, payload, size)))
 723         {
 724                 bRet = true;
 725         }
 726         OICFree(payload);
 727     }
 728     else
 729     {
 730         if (OC_STACK_OK == UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, NULL, 0))
 731         {
 732                 bRet = true;
 733         }
 734     }
 735
 736     return bRet;
 737 }
 738
 739 OCStackResult SetDoxmDeviceIDResetPF(const OicUuid_t *deviceID)
 740 {
 741     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
 742
 743     OCStackResult res = OC_STACK_ERROR;
 744     size_t dbSize = 0;
 745     uint8_t *dbData = NULL;
 746     uint8_t *aclCbor = NULL;
 747     uint8_t *credCbor = NULL;
 748     uint8_t *pstatCbor = NULL;
 749     uint8_t *doxmCbor = NULL;
 750     uint8_t *resetPfCbor = NULL;
 751     int64_t cborEncoderResult = CborNoError;
 752
 753     if (NULL == deviceID)
 754     {
 755         OIC_LOG_V(ERROR, TAG, "%s - deviceID is NULL!", __func__);
 756         return res;
 757     }
 758
 759     res = GetSecureVirtualDatabaseFromPS(NULL, &dbData, &dbSize);
 760     if (OC_STACK_OK != res)
 761     {
 762         OIC_LOG_V(ERROR, TAG, "GetSecureVirtualDatabaseFromPS() is failed(%d)", res);
 763         return res;
 764     }
 765     if (dbData && dbSize)
 766     {
 767         size_t aclCborLen = 0;
 768         size_t credCborLen = 0;
 769         size_t pstatCborLen = 0;
 770         size_t doxmCborLen = 0;
 771         size_t resetPfCborLen = 0;
 772         OicSecDoxm_t *tmpDoxm = NULL;
 773
 774         {
 775             CborParser parser;
 776             CborValue cbor;
 777             cbor_parser_init(dbData, dbSize, 0, &parser, &cbor);
 778             CborValue curVal = {0};
 779             CborError cborFindResult = CborNoError;
 780
 781             // abort if reset profile doesn't exist
 782             cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_RESET_PF_NAME, &curVal);
 783             if (CborNoError != cborFindResult || !cbor_value_is_byte_string(&curVal))
 784             {
 785                 OIC_LOG(DEBUG, TAG, "Reset Profile doesn't exist!");
 786                 res=OC_STACK_ERROR;
 787                 goto exit;
 788             }
 789             cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_ACL_NAME, &curVal);
 790             if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
 791             {
 792                 cborFindResult = cbor_value_dup_byte_string(&curVal, &aclCbor, &aclCborLen, NULL);
 793                 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding ACL Name Value.");
 794             }
 795             cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_CRED_NAME, &curVal);
 796             if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
 797             {
 798                 cborFindResult = cbor_value_dup_byte_string(&curVal, &credCbor, &credCborLen, NULL);
 799                 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding CRED Name Value.");
 800             }
 801             cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_PSTAT_NAME, &curVal);
 802             if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
 803             {
 804                 cborFindResult = cbor_value_dup_byte_string(&curVal, &pstatCbor, &pstatCborLen, NULL);
 805                 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding PSTAT Name Value.");
 806             }
 807             cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_DOXM_NAME, &curVal);
 808             if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
 809             {
 810                 cborFindResult = cbor_value_dup_byte_string(&curVal, &doxmCbor, &doxmCborLen, NULL);
 811                 VERIFY_CBOR_SUCCESS(TAG, cborFindResult,  "Failed Finding DOXM Name Value.");
 812
 813                 res = CBORPayloadToDoxm(doxmCbor, doxmCborLen, &tmpDoxm);
 814                 if (OC_STACK_OK != res)
 815                 {
 816                     OIC_LOG_V(ERROR, TAG, "%s - CBORPayloadToDoxm error : %d", __func__, res);
 817                     goto exit;
 818                 }
 819                 VERIFY_NON_NULL(TAG, tmpDoxm, ERROR);
 820                 memcpy(tmpDoxm->deviceID.id, deviceID->id, sizeof(deviceID->id));
 821                 OICFree(doxmCbor);
 822                 doxmCbor = NULL;
 823                 doxmCborLen = 0;
 824                 res = DoxmToCBORPayload(tmpDoxm, &doxmCbor, &doxmCborLen, false);
 825                 if (OC_STACK_OK != res || 0 == doxmCborLen || NULL == doxmCbor)
 826                 {
 827                     OIC_LOG_V(ERROR, TAG,"%s - DoxmToCBORPayload error : %d", __func__, res);
 828                     goto exit;
 829                 }
 830             }
 831         }
 832
 833         {
 834             size_t size = aclCborLen + credCborLen + pstatCborLen + doxmCborLen + 255;
 835             resetPfCbor = (uint8_t *) OICCalloc(1, size);
 836             VERIFY_NON_NULL(TAG, resetPfCbor, ERROR);
 837             CborEncoder encoder;  // will be initialized in |cbor_parser_init|
 838             cbor_encoder_init(&encoder, resetPfCbor, size, 0);
 839             CborEncoder secRsrc;  // will be initialized in |cbor_encoder_create_map|
 840             cborEncoderResult |= cbor_encoder_create_map(&encoder, &secRsrc, CborIndefiniteLength);
 841
 842             cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_ACL_NAME, strlen(OIC_JSON_ACL_NAME));
 843             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ACL Name.");
 844             cborEncoderResult |= cbor_encode_byte_string(&secRsrc, aclCbor, aclCborLen);
 845             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ACL Value.");
 846
 847             if (credCborLen)
 848             {
 849                 cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_CRED_NAME, strlen(OIC_JSON_CRED_NAME));
 850                 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding CRED Name.");
 851                 cborEncoderResult |= cbor_encode_byte_string(&secRsrc, credCbor, credCborLen);
 852                 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding CRED Value.");
 853             }
 854
 855             cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_PSTAT_NAME, strlen(OIC_JSON_PSTAT_NAME));
 856             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PSTAT Name.");
 857             cborEncoderResult |= cbor_encode_byte_string(&secRsrc, pstatCbor, pstatCborLen);
 858             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PSTAT Value.");
 859
 860             cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_DOXM_NAME, strlen(OIC_JSON_DOXM_NAME));
 861             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Name.");
 862             cborEncoderResult |= cbor_encode_byte_string(&secRsrc, doxmCbor, doxmCborLen);
 863             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Value.");
 864
 865             cborEncoderResult |= cbor_encoder_close_container(&encoder, &secRsrc);
 866             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing Array.");
 867             resetPfCborLen = cbor_encoder_get_buffer_size(&encoder, resetPfCbor);
 868         }
 869
 870         res = UpdateSecureResourceInPS(OIC_JSON_RESET_PF_NAME, resetPfCbor, resetPfCborLen);
 871         if (OC_STACK_OK != res)
 872         {
 873             OIC_LOG_V(ERROR, TAG, "%s - Error in UpdateSecureResourceInPS", __func__);
 874         }
 875     }
 876     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
 877
 878 exit:
 879     OICFree(dbData);
 880     OICFree(aclCbor);
 881     OICFree(credCbor);
 882     OICFree(pstatCbor);
 883     OICFree(doxmCbor);
 884     OICFree(resetPfCbor);
 885
 886     return res;
 887 }
 888
 889 static bool ValidateQuery(const char * query)
 890 {
 891     // Send doxm resource data if the state of doxm resource
 892     // matches with the query parameters.
 893     // else send doxm resource data as NULL
 894     // TODO Remove this check and rely on Policy Engine
 895     // and Provisioning Mode to enforce provisioning-state
 896     // access rules. Eventually, the PE and PM code will
 897     // not send a request to the /doxm Entity Handler at all
 898     // if it should not respond.
 899     OIC_LOG (DEBUG, TAG, "In ValidateQuery");
 900     if(NULL == gDoxm)
 901     {
 902         return false;
 903     }
 904
 905     bool bOwnedQry = false;         // does querystring contains 'owned' query ?
 906     bool bOwnedMatch = false;       // does 'owned' query value matches with doxm.owned status?
 907     bool bDeviceIDQry = false;      // does querystring contains 'deviceid' query ?
 908     bool bDeviceIDMatch = false;    // does 'deviceid' query matches with doxm.deviceid ?
 909     bool bInterfaceQry = false;      // does querystring contains 'if' query ?
 910     bool bInterfaceMatch = false;    // does 'if' query matches with oic.if.baseline ?
 911 #ifdef MULTIPLE_OWNER
 912     bool bMotMatch = false;       // does 'mom' query value is not '0' && does query value matches with doxm.owned status?
 913 #endif //MULTIPLE_OWNER
 914
 915     OicParseQueryIter_t parseIter = {.attrPos = NULL};
 916
 917     ParseQueryIterInit((unsigned char*)query, &parseIter);
 918
 919     while (GetNextQuery(&parseIter))
 920     {
 921         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_OWNED_NAME, parseIter.attrLen) == 0)
 922         {
 923             bOwnedQry = true;
 924             if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_TRUE, parseIter.valLen) == 0) &&
 925                     (gDoxm->owned))
 926             {
 927                 bOwnedMatch = true;
 928             }
 929             else if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_FALSE, parseIter.valLen) == 0)
 930                     && (!gDoxm->owned))
 931             {
 932                 bOwnedMatch = true;
 933             }
 934         }
 935
 936 #ifdef MULTIPLE_OWNER
 937         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_MOM_NAME, strlen(OIC_JSON_MOM_NAME)) == 0)
 938         {
 939             OicSecMomType_t momMode = (OicSecMomType_t)(parseIter.valPos[0] - CHAR_ZERO);
 940             if(NULL != gDoxm->mom && momMode != gDoxm->mom->mode)
 941             {
 942                 if(GetNextQuery(&parseIter))
 943                 {
 944                     if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_OWNED_NAME, parseIter.attrLen) == 0)
 945                     {
 946                         if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_TRUE, parseIter.valLen) == 0) &&
 947                                 (gDoxm->owned))
 948                         {
 949                             bMotMatch = true;
 950                         }
 951                     }
 952                 }
 953             }
 954             return bMotMatch;
 955         }
 956 #endif //MULTIPLE_OWNER
 957
 958         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_DEVICE_ID_NAME, parseIter.attrLen) == 0)
 959         {
 960             bDeviceIDQry = true;
 961             OicUuid_t subject = {.id={0}};
 962
 963             memcpy(subject.id, parseIter.valPos, parseIter.valLen);
 964             if (0 == memcmp(&gDoxm->deviceID.id, &subject.id, sizeof(gDoxm->deviceID.id)))
 965             {
 966                 bDeviceIDMatch = true;
 967             }
 968         }
 969
 970         if (strncasecmp((char *)parseIter.attrPos, OC_RSRVD_INTERFACE, parseIter.attrLen) == 0)
 971         {
 972             bInterfaceQry = true;
 973             if ((strncasecmp((char *)parseIter.valPos, OC_RSRVD_INTERFACE_DEFAULT, parseIter.valLen) == 0))
 974             {
 975                 bInterfaceMatch = true;
 976             }
 977             return (bInterfaceQry ? bInterfaceMatch: true);
 978         }
 979     }
 980
 981     return ((bOwnedQry ? bOwnedMatch : true) &&
 982             (bDeviceIDQry ? bDeviceIDMatch : true));
 983 }
 984
 985 static OCEntityHandlerResult HandleDoxmGetRequest (const OCEntityHandlerRequest * ehRequest)
 986 {
 987     OCEntityHandlerResult ehRet = OC_EH_OK;
 988
 989     OIC_LOG(DEBUG, TAG, "Doxm EntityHandle processing GET request");
 990
 991     //Checking if Get request is a query.
 992     if (ehRequest->query)
 993     {
 994         OIC_LOG_V(DEBUG,TAG,"query:%s",ehRequest->query);
 995         OIC_LOG(DEBUG, TAG, "HandleDoxmGetRequest processing query");
 996         if (!ValidateQuery(ehRequest->query))
 997         {
 998             ehRet = OC_EH_ERROR;
 999         }
1000     }
1001
1002     /*
1003      * For GET or Valid Query request return doxm resource CBOR payload.
1004      * For non-valid query return NULL json payload.
1005      * A device will 'always' have a default Doxm, so DoxmToCBORPayload will
1006      * return valid doxm resource json.
1007      */
1008     uint8_t *payload = NULL;
1009     size_t size = 0;
1010
1011     if (ehRet == OC_EH_OK)
1012     {
1013         if (OC_STACK_OK != DoxmToCBORPayload(gDoxm, &payload, &size, false))
1014         {
1015             OIC_LOG(WARNING, TAG, "DoxmToCBORPayload failed in HandleDoxmGetRequest");
1016         }
1017     }
1018
1019     OIC_LOG(DEBUG, TAG, "Send payload for doxm GET request");
1020     OIC_LOG_BUFFER(DEBUG, TAG, payload, size);
1021
1022     // Send response payload to request originator
1023     ehRet = ((SendSRMResponse(ehRequest, ehRet, payload, size)) == OC_STACK_OK) ?
1024                    OC_EH_OK : OC_EH_ERROR;
1025
1026     OICFree(payload);
1027
1028     return ehRet;
1029 }
1030
1031 static void updateWriteableProperty(const OicSecDoxm_t* src, OicSecDoxm_t* dst)
1032 {
1033     if(src && dst)
1034    {
1035         // update oxmsel
1036         dst->oxmSel = src->oxmSel;
1037
1038         //update owner
1039         memcpy(&(dst->owner), &(src->owner), sizeof(OicUuid_t));
1040
1041         //update rowner
1042         memcpy(&(dst->rownerID), &(src->rownerID), sizeof(OicUuid_t));
1043
1044         //update deviceuuid
1045         memcpy(&(dst->deviceID), &(src->deviceID), sizeof(OicUuid_t));
1046
1047         //Update owned status
1048         if(dst->owned != src->owned)
1049         {
1050             dst->owned = src->owned;
1051         }
1052
1053 #ifdef MULTIPLE_OWNER
1054         if(src->mom)
1055         {
1056             OIC_LOG(DEBUG, TAG, "dectected 'mom' property");
1057             if(NULL == dst->mom)
1058             {
1059                 dst->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
1060                 if(NULL != dst->mom)
1061                 {
1062                     dst->mom->mode = src->mom->mode;
1063                 }
1064             }
1065         }
1066 #endif //MULTIPLE_OWNER
1067     }
1068 }
1069
1070 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1071 #ifdef MULTIPLE_OWNER
1072 /**
1073  * Internal function to get number of sub-owner
1074  */
1075 static size_t GetSubOwnerSize()
1076 {
1077     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
1078
1079     size_t numberOfSubOwner = 0;
1080
1081     if (gDoxm && gDoxm->subOwners)
1082     {
1083         OicSecSubOwner_t* subowner = NULL;
1084         LL_FOREACH(gDoxm->subOwners, subowner)
1085         {
1086             numberOfSubOwner++;
1087         }
1088     }
1089
1090     OIC_LOG_V(DEBUG, TAG, "Numer of registered sub-owner=%zd", numberOfSubOwner);
1091     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
1092
1093     return numberOfSubOwner;
1094 }
1095
1096 /**
1097  * Callback function to handle MOT DTLS handshake result.
1098  * @param[out]   endpoint           remote device information.
1099  * @param[out]   errorInfo        CA Error information.
1100  */
1101 void MultipleOwnerDTLSHandshakeCB(const CAEndpoint_t *endpoint,
1102                                 const CAErrorInfo_t *errorInfo)
1103 {
1104     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
1105     if (!endpoint || !errorInfo)
1106     {
1107         OIC_LOG(ERROR, TAG, "Invalid param");
1108         return;
1109     }
1110
1111     if (!gDoxm)
1112     {
1113         OIC_LOG_V(ERROR, TAG, "%s: gDoxm is NULL", __func__);
1114         return;
1115     }
1116
1117     if ((CA_STATUS_OK == errorInfo->result) && (true == gDoxm->owned)
1118         && (OIC_PRECONFIG_PIN == gDoxm->oxmSel) && (NULL != gDoxm->mom)
1119         && (OIC_MULTIPLE_OWNER_DISABLE != gDoxm->mom->mode) && (CA_ADAPTER_TCP != endpoint->adapter))
1120     {
1121         OIC_LOG_V(INFO, TAG, "DTLS session established for sub-owner authentication : (%s:%d)",
1122                   endpoint->addr, endpoint->port);
1123
1124         const CASecureEndpoint_t* authenticatedSubOwnerInfo = CAGetSecureEndpointData(endpoint);
1125         if (authenticatedSubOwnerInfo)
1126         {
1127             if (0 == memcmp(authenticatedSubOwnerInfo->identity.id, gDoxm->owner.id,
1128                             authenticatedSubOwnerInfo->identity.id_length))
1129             {
1130                 OIC_LOG(WARNING, TAG, "Super owner tried MOT, this request will be ignored.");
1131                 return;
1132             }
1133
1134             OicSecSubOwner_t* subOwnerInst = NULL;
1135             LL_FOREACH(gDoxm->subOwners, subOwnerInst)
1136             {
1137                 if(0 == memcmp(subOwnerInst->uuid.id,
1138                                authenticatedSubOwnerInfo->identity.id,
1139                                authenticatedSubOwnerInfo->identity.id_length))
1140                 {
1141                     break;
1142                 }
1143             }
1144
1145             if (NULL == subOwnerInst)
1146             {
1147                 subOwnerInst = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
1148                 if (subOwnerInst)
1149                 {
1150                     char* strUuid = NULL;
1151                     if (OC_STACK_OK != ConvertUuidToStr(&subOwnerInst->uuid, &strUuid))
1152                     {
1153                         OIC_LOG(WARNING, TAG, "ConvertUuidToStr error");
1154                     }
1155                     OIC_LOG_V(DEBUG, TAG, "Adding New SubOwner(%s)", strUuid);
1156
1157                     if (gMaxSubOwnerSize > GetSubOwnerSize())
1158                     {
1159                         memcpy(subOwnerInst->uuid.id, authenticatedSubOwnerInfo->identity.id,
1160                                authenticatedSubOwnerInfo->identity.id_length);
1161                         LL_APPEND(gDoxm->subOwners, subOwnerInst);
1162                         if (!UpdatePersistentStorage(gDoxm))
1163                         {
1164                             OIC_LOG(ERROR, TAG, "Failed to register SubOwner UUID into Doxm");
1165                         }
1166                     }
1167                     else
1168                     {
1169                         OIC_LOG_V(ERROR, TAG, "Number of sub-owner exceeded : (MAX SIZE=%zd)", gMaxSubOwnerSize);
1170
1171                         //Close DTLS session
1172                         if (CA_STATUS_OK != CAcloseSslSession(endpoint))
1173                         {
1174                             OIC_LOG_V(ERROR, TAG, "CAcloseSslSession error for [%s:%d]", endpoint->addr, endpoint->port);
1175                         }
1176
1177                         //Remove credential
1178                         if (OC_STACK_RESOURCE_DELETED != RemoveCredential(&subOwnerInst->uuid))
1179                         {
1180                             OIC_LOG_V(ERROR, TAG, "RemoveCredential error for [%s]", strUuid);
1181                         }
1182
1183                         // TODO: How to send error to client side?
1184                     }
1185
1186                     OICFree(strUuid);
1187                 }
1188             }
1189         }
1190     }
1191
1192     if(CA_STATUS_OK != CAregisterPskCredentialsHandler(GetDtlsPskCredentials))
1193     {
1194         OIC_LOG(WARNING, TAG, "Failed to revert the DTLS credential handler");
1195     }
1196
1197     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
1198 }
1199 #endif //MULTIPLE_OWNER
1200 #endif // defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1201
1202 /**
1203  * Function to validate oxmsel with oxms.
1204  *
1205  * @param[in] supportedMethods   Array of supported methods
1206  * @param[in] numberOfMethods   number of supported methods
1207  * @param[out]  selectedMethod         Selected methods
1208  * @return  TRUE on success
1209  */
1210 static bool ValidateOxmsel(const OicSecOxm_t *supportedMethods,
1211         size_t numberOfMethods, OicSecOxm_t *selectedMethod)
1212 {
1213     bool isValidOxmsel = false;
1214
1215     OIC_LOG(DEBUG, TAG, "IN ValidateOxmsel");
1216     if (numberOfMethods == 0 || !supportedMethods)
1217     {
1218         OIC_LOG(WARNING, TAG, "Could not find a supported OxM.");
1219         return isValidOxmsel;
1220     }
1221
1222     for (size_t i = 0; i < numberOfMethods; i++)
1223     {
1224             if (*selectedMethod  == supportedMethods[i])
1225             {
1226                 isValidOxmsel = true;
1227                 break;
1228             }
1229     }
1230     if (!isValidOxmsel)
1231     {
1232         OIC_LOG(ERROR, TAG, "Not allowed Oxmsel.");
1233         return isValidOxmsel;
1234     }
1235
1236     OIC_LOG(DEBUG, TAG, "OUT ValidateOxmsel");
1237
1238     return isValidOxmsel;
1239 }
1240
1241 void SetInformOxmSelCB(InformOxmSelectedCallback_t informOxmSelCB)
1242 {
1243     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
1244     g_InformOxmSelectedCallback = informOxmSelCB;
1245     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
1246 }
1247
1248 void UnsetInformOxmSelCB()
1249 {
1250     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
1251     g_InformOxmSelectedCallback = NULL;
1252     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
1253 }
1254
1255 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1256 static OCEntityHandlerResult HandleDoxmPostRequest(OCEntityHandlerRequest * ehRequest);
1257
1258 static void DestroyEntityHandlerRequest(OCEntityHandlerRequest * ehRequest)
1259 {
1260     if (ehRequest == NULL) {
1261         OIC_LOG(WARNING, TAG, "ehRequest is NULL");
1262         return;
1263     }
1264
1265     OICFree(ehRequest->query);
1266
1267     if (ehRequest->payload) {
1268         OICFree(((OCSecurityPayload *)ehRequest->payload)->securityData);
1269         OICFree(ehRequest->payload);
1270     }
1271
1272     OICFree(ehRequest);
1273 }
1274
1275 void * WaitConfirm(OCEntityHandlerRequest * ehRequest)
1276 {
1277     bool confirmResult = false, confirmState = false;
1278
1279     oc_mutex_lock(g_mutexWait);
1280     oc_cond_wait(g_condWait, g_mutexWait);
1281     oc_cond_free(g_condWait);
1282     g_condWait = NULL;
1283
1284     oc_mutex_unlock(g_mutexWait);
1285     oc_mutex_free(g_mutexWait);
1286     g_mutexWait = NULL;
1287
1288     g_isConfirmResult = true;
1289     GetAsyncVerifyUserResult(&confirmResult, &confirmState);
1290     if (confirmResult == true)
1291     {
1292         gConfirmState = CONFIRM_STATE_ACCEPTED;
1293         HandleDoxmPostRequest(ehRequest);
1294         g_isConfirmResult = false;
1295     }
1296     else
1297     {
1298         gConfirmState = CONFIRM_STATE_DENIED;
1299         HandleDoxmPostRequest(ehRequest);
1300         g_isConfirmResult = false;
1301     }
1302
1303     DestroyEntityHandlerRequest(ehRequest);
1304
1305     return NULL;
1306 }
1307
1308 static OCEntityHandlerRequest *CopyRequest(OCEntityHandlerRequest *entityHandlerRequest)
1309 {
1310     OIC_LOG(INFO, TAG, "Copying received request for slow response");
1311
1312     if (!entityHandlerRequest)
1313     {
1314         OIC_LOG_V(ERROR, TAG, "%s: entityHandlerRequest is NULL", __func__);
1315         return NULL;
1316     }
1317
1318     OCEntityHandlerRequest *copyOfRequest =
1319             (OCEntityHandlerRequest *)OICCalloc(1, sizeof(OCEntityHandlerRequest));
1320     if(!copyOfRequest)
1321     {
1322         OIC_LOG(ERROR, TAG, "Copy failed due to allocation failure");
1323         return NULL;
1324     }
1325
1326     memcpy(copyOfRequest, entityHandlerRequest, sizeof(OCEntityHandlerRequest));
1327
1328     if (entityHandlerRequest->query)
1329     {
1330         copyOfRequest->query = OICStrdup(entityHandlerRequest->query);
1331         if(!copyOfRequest->query)
1332         {
1333             OIC_LOG(ERROR, TAG, "Copy failed due to allocation failure");
1334             OICFree(copyOfRequest);
1335             return NULL;
1336         }
1337     }
1338
1339     if (entityHandlerRequest->payload)
1340     {
1341         copyOfRequest->payload =
1342                 (OCSecurityPayload *)OICCalloc(1, sizeof(OCSecurityPayload));
1343         if(!copyOfRequest->payload)
1344         {
1345             OIC_LOG(ERROR, TAG, "Copy failed due to allocation failure");
1346             OICFree(copyOfRequest->query);
1347             OICFree(copyOfRequest);
1348             return NULL;
1349         }
1350
1351         if (((OCSecurityPayload *)entityHandlerRequest->payload)->payloadSize)
1352         {
1353             ((OCSecurityPayload *)copyOfRequest->payload)->securityData =
1354                     (uint8_t *)OICCalloc(1, ((OCSecurityPayload *)entityHandlerRequest->payload)->payloadSize);
1355             if(!((OCSecurityPayload *)copyOfRequest->payload)->securityData)
1356             {
1357                 OIC_LOG(ERROR, TAG, "Copy failed due to allocation failure");
1358                 OICFree(copyOfRequest->payload);
1359                 OICFree(copyOfRequest->query);
1360                 OICFree(copyOfRequest);
1361                 return NULL;
1362             }
1363
1364             memcpy(((OCSecurityPayload *)copyOfRequest->payload)->securityData,
1365                   ((OCSecurityPayload *)entityHandlerRequest->payload)->securityData,
1366                   ((OCSecurityPayload *)entityHandlerRequest->payload)->payloadSize);
1367
1368             ((OCSecurityPayload *)(copyOfRequest->payload))->payloadSize =
1369                     ((OCSecurityPayload *)(entityHandlerRequest->payload))->payloadSize;
1370         }
1371
1372         copyOfRequest->payload->type = entityHandlerRequest->payload->type;
1373         copyOfRequest->messageID = entityHandlerRequest->messageID;
1374     }
1375
1376     // Ignore vendor specific header options for example
1377     copyOfRequest->numRcvdVendorSpecificHeaderOptions = 0;
1378     copyOfRequest->rcvdVendorSpecificHeaderOptions = NULL;
1379
1380     OIC_LOG(INFO, TAG, "Copied client request");
1381
1382     return copyOfRequest;
1383 }
1384 #endif // defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1385
1386 static OCEntityHandlerResult HandleDoxmPostRequest(OCEntityHandlerRequest * ehRequest)
1387 {
1388     OIC_LOG (DEBUG, TAG, "Doxm EntityHandle  processing POST request");
1389     OCEntityHandlerResult ehRet = OC_EH_ERROR;
1390     OicUuid_t emptyOwner = {.id = {0} };
1391     static uint16_t previousMsgId = 0;
1392     bool isDuplicatedMsg = false;
1393
1394     /*
1395      * Convert CBOR Doxm data into binary. This will also validate
1396      * the Doxm data received.
1397      */
1398     OicSecDoxm_t *newDoxm = NULL;
1399
1400     if (ehRequest->payload)
1401     {
1402         uint8_t *payload = ((OCSecurityPayload *)ehRequest->payload)->securityData;
1403         size_t size = ((OCSecurityPayload *)ehRequest->payload)->payloadSize;
1404         bool roParsed = false;
1405         OCStackResult res = CBORPayloadToDoxmBin(payload, size, &newDoxm, &roParsed);
1406         if (newDoxm && OC_STACK_OK == res)
1407         {
1408             /*
1409              * message ID is supported for CoAP over UDP only according to RFC 7252
1410              * So we should check message ID to prevent duplicate request handling in case of OC_ADAPTER_IP.
1411              * In case of other transport adapter, duplicate message check is not required.
1412              */
1413             if (OC_ADAPTER_IP == ehRequest->devAddr.adapter &&
1414                  previousMsgId == ehRequest->messageID && g_isConfirmResult == false)
1415             {
1416                 isDuplicatedMsg = true;
1417             }
1418
1419             if (isDuplicatedMsg && ehRequest->messageID == gConfirmMsgId)
1420             {
1421                 if (CONFIRM_STATE_WAIT == gConfirmState)
1422                 {
1423                     OIC_LOG(DEBUG, TAG, "Confirm callback already invoked.");
1424                     OIC_LOG(DEBUG, TAG, "This request will be ignored.");
1425                     DeleteDoxmBinData(newDoxm);
1426                     return OC_EH_OK;
1427                 }
1428                 else
1429                 {
1430                     OIC_LOG_V(DEBUG, TAG, "Confirm request already done, Confirm Result = %s", (CONFIRM_STATE_ACCEPTED == gConfirmState ? "ACCEPTED" : "DENIED"));
1431                     ehRet = (CONFIRM_STATE_ACCEPTED == gConfirmState ? OC_EH_OK : OC_EH_NOT_ACCEPTABLE);
1432                     goto exit;
1433                 }
1434             }
1435
1436             // Check request on RO property
1437             if (true == roParsed)
1438             {
1439                 OIC_LOG(ERROR, TAG, "Not acceptable request because of read-only propertys");
1440                 ehRet = OC_EH_NOT_ACCEPTABLE;
1441                 goto exit;
1442             }
1443
1444             VERIFY_NON_NULL(TAG, gDoxm, ERROR);
1445
1446             // in owned state
1447             if (true == gDoxm->owned)
1448             {
1449                 if (false == ValidateOxmsel(gDoxm->oxm, gDoxm->oxmLen, &newDoxm->oxmSel))
1450                 {
1451                     OIC_LOG(ERROR, TAG, "Not acceptable request because oxmsel does not support on Server");
1452                     ehRet = OC_EH_NOT_ACCEPTABLE;
1453                     goto exit;
1454                 }
1455
1456                 if(0 != memcmp(&gDoxm->owner.id, &newDoxm->owner.id, sizeof(gDoxm->owner.id)))
1457                 {
1458                     OIC_LOG(ERROR, TAG, "Not acceptable request for owned property");
1459                     ehRet = OC_EH_NOT_ACCEPTABLE;
1460                 }
1461
1462                 //Update gDoxm based on newDoxm
1463                 updateWriteableProperty(newDoxm, gDoxm);
1464
1465 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1466 #ifdef MULTIPLE_OWNER
1467                 //handle mom
1468                 if(gDoxm->mom)
1469                 {
1470                     if(OIC_MULTIPLE_OWNER_DISABLE != gDoxm->mom->mode)
1471                     {
1472                         CAResult_t caRes = CA_STATUS_FAILED;
1473                         if(OIC_PRECONFIG_PIN == gDoxm->oxmSel || OIC_RANDOM_DEVICE_PIN == gDoxm->oxmSel)
1474                         {
1475                             caRes = CAEnableAnonECDHCipherSuite(false);
1476                             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1477                             OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1478
1479                             caRes = CASelectCipherSuite((uint16_t)MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, ehRequest->devAddr.adapter);
1480                             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1481                             OIC_LOG(INFO, TAG, "ECDHE_PSK CipherSuite will be used for MOT");
1482
1483                             //Set the device id to derive temporal PSK
1484                             SetUuidForPinBasedOxm(&gDoxm->deviceID);
1485                         }
1486                         else
1487                         {
1488                             OIC_LOG(WARNING, TAG, "Unsupported OxM for Multiple Ownership Transfer.");
1489                         }
1490
1491                         CAregisterSslHandshakeCallback(MultipleOwnerDTLSHandshakeCB);
1492                     }
1493                     else
1494                     {
1495                         //if MOM is disabled, revert the DTLS handshake callback
1496                         if(CA_STATUS_OK != CAregisterSslHandshakeCallback(NULL))
1497                         {
1498                             OIC_LOG(WARNING, TAG, "Error while revert the DTLS Handshake Callback.");
1499                         }
1500                     }
1501                 }
1502
1503                 if(newDoxm->subOwners)
1504                 {
1505                     OicSecSubOwner_t* subowner = NULL;
1506                     OicSecSubOwner_t* temp = NULL;
1507
1508                     OIC_LOG(DEBUG, TAG, "dectected 'subowners' property");
1509
1510                     if(gDoxm->subOwners)
1511                     {
1512                         LL_FOREACH_SAFE(gDoxm->subOwners, subowner, temp)
1513                         {
1514                             LL_DELETE(gDoxm->subOwners, subowner);
1515                             OICFree(subowner);
1516                         }
1517                     }
1518
1519                     subowner = NULL;
1520                     temp = NULL;
1521                     LL_FOREACH_SAFE(newDoxm->subOwners, subowner, temp)
1522                     {
1523                         LL_DELETE(newDoxm->subOwners, subowner);
1524                         LL_APPEND(gDoxm->subOwners, subowner);
1525                     }
1526                 }
1527 #endif //MULTIPLE_OWNER
1528 #endif // defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1529
1530                 //Update new state in persistent storage
1531                 if (UpdatePersistentStorage(gDoxm) == true)
1532                 {
1533                     ehRet = OC_EH_OK;
1534                 }
1535                 else
1536                 {
1537                     OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1538                     ehRet = OC_EH_ERROR;
1539                 }
1540                 goto exit;
1541             }
1542
1543             // in unowned state
1544             if ((false == gDoxm->owned) && (false == newDoxm->owned))
1545             {
1546                 if (false == ValidateOxmsel(gDoxm->oxm, gDoxm->oxmLen, &newDoxm->oxmSel))
1547                 {
1548                     OIC_LOG(ERROR, TAG, "Not acceptable request because oxmsel does not support on Server");
1549                     ehRet = OC_EH_NOT_ACCEPTABLE;
1550                     goto exit;
1551                 }
1552                 if (g_InformOxmSelectedCallback)
1553                 {
1554                     g_InformOxmSelectedCallback(newDoxm->oxmSel);
1555                 }
1556
1557 #if defined (__WITH_TLS__) || defined(__WITH_DTLS__)
1558                 if (memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) == 0)
1559                 {
1560                     InvokeOtmEventHandler(ehRequest->devAddr.addr, ehRequest->devAddr.port,
1561                                           NULL, OIC_OTM_STARTED);
1562                 }
1563                 else
1564                 {
1565                     OIC_LOG_V(INFO, TAG, "%s: request owner not empty",__func__);
1566                     char* strUuid = NULL;
1567                     if (OC_STACK_OK == ConvertUuidToStr(&newDoxm->owner, &strUuid))
1568                     {
1569                         OIC_LOG_V(INFO, TAG, "%s: request owner: %s",__func__, strUuid);
1570                         OICFree(strUuid);
1571                     }
1572                 }
1573 #endif
1574
1575                 if (OIC_JUST_WORKS == newDoxm->oxmSel || OIC_MV_JUST_WORKS == newDoxm->oxmSel)
1576                 {
1577                     /*
1578                      * If current state of the device is un-owned, enable
1579                      * anonymous ECDH cipher in tinyDTLS so that Provisioning
1580                      * tool can initiate JUST_WORKS ownership transfer process.
1581                      */
1582                     if (memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) == 0)
1583                     {
1584                         gDoxm->oxmSel = newDoxm->oxmSel;
1585                         //Update new state in persistent storage
1586                         if ((UpdatePersistentStorage(gDoxm) == true))
1587                         {
1588                             ehRet = OC_EH_OK;
1589                         }
1590                         else
1591                         {
1592                             OIC_LOG(WARNING, TAG, "Failed to update DOXM in persistent storage");
1593                             ehRet = OC_EH_ERROR;
1594                             goto exit;
1595                         }
1596                         OIC_LOG (INFO, TAG, "Doxm EntityHandle  enabling AnonECDHCipherSuite");
1597 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1598                         ehRet = (CAEnableAnonECDHCipherSuite(true) == CA_STATUS_OK) ? OC_EH_OK : OC_EH_ERROR;
1599 #endif // __WITH_DTLS__ or __WITH_TLS__
1600                         goto exit;
1601                     }
1602                     else
1603                     {
1604 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1605                         //Save the owner's UUID to derive owner credential
1606                         memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1607
1608                         // Update new state in persistent storage
1609                         if (true == UpdatePersistentStorage(gDoxm))
1610                         {
1611                             ehRet = OC_EH_OK;
1612                         }
1613                         else
1614                         {
1615                             OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1616                             ehRet = OC_EH_ERROR;
1617                             goto exit;
1618                         }
1619
1620                         /*
1621                          * Disable anonymous ECDH cipher in tinyDTLS since device is now
1622                          * in owned state.
1623                          */
1624                         CAResult_t caRes = CA_STATUS_OK;
1625                         caRes = CAEnableAnonECDHCipherSuite(false);
1626                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1627                         OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1628
1629                         //In case of Mutual Verified Just-Works, verify mutualVerifNum
1630                         if (OIC_MV_JUST_WORKS == newDoxm->oxmSel && false == newDoxm->owned &&
1631                             false == isDuplicatedMsg)
1632                         {
1633                             uint8_t preMutualVerifNum[OWNER_PSK_LENGTH_128] = {0};
1634                             uint8_t mutualVerifNum[MUTUAL_VERIF_NUM_LEN] = {0};
1635                             OicUuid_t deviceID = {.id = {0}};
1636
1637                             //Generate mutualVerifNum
1638                             OCServerRequest * request = GetServerRequestUsingHandle(ehRequest->requestHandle);
1639
1640                             char label[LABEL_LEN] = {0};
1641                             snprintf(label, LABEL_LEN, "%s%s", MUTUAL_VERIF_NUM, OXM_MV_JUST_WORKS);
1642                             if (OC_STACK_OK != GetDoxmDeviceID(&deviceID))
1643                             {
1644                                 OIC_LOG(ERROR, TAG, "Error while retrieving Owner's device ID");
1645                                 ehRet = OC_EH_ERROR;
1646                                 goto exit;
1647
1648                             }
1649
1650                             CAResult_t pskRet = CAGenerateOwnerPSK((CAEndpoint_t *)&request->devAddr,
1651                                     (uint8_t *)label,
1652                                     strlen(label),
1653                                     gDoxm->owner.id, sizeof(gDoxm->owner.id),
1654                                     gDoxm->deviceID.id, sizeof(gDoxm->deviceID.id),
1655                                     preMutualVerifNum, OWNER_PSK_LENGTH_128);
1656                             if (CA_STATUS_OK != pskRet)
1657                             {
1658                                 OIC_LOG(WARNING, TAG, "Failed to remove the invaild owner credential");
1659                                 ehRet = OC_EH_ERROR;
1660                                 goto exit;
1661
1662                             }
1663
1664                             memcpy(mutualVerifNum, preMutualVerifNum + OWNER_PSK_LENGTH_128 - sizeof(mutualVerifNum),
1665                                     sizeof(mutualVerifNum));
1666
1667                             gConfirmMsgId = ehRequest->messageID;
1668                             gConfirmState = CONFIRM_STATE_WAIT;
1669                             //Wait for user confirmation
1670                             if (OC_STACK_OK != VerifyOwnershipTransfer(mutualVerifNum, DISPLAY_NUM | USER_CONFIRM))
1671                             {
1672                                 ehRet = OC_EH_NOT_ACCEPTABLE;
1673                                 gConfirmState = CONFIRM_STATE_DENIED;
1674                             }
1675                             else
1676                             {
1677                                 ehRet = OC_EH_OK;
1678                                 gConfirmState = CONFIRM_STATE_ACCEPTED;
1679                             }
1680                         }
1681
1682 #endif // __WITH_DTLS__ or __WITH_TLS__
1683                     }
1684                 }
1685                 else if (OIC_RANDOM_DEVICE_PIN == newDoxm->oxmSel)
1686                 {
1687                     /*
1688                      * If current state of the device is un-owned, enable
1689                      * anonymous ECDH cipher in tinyDTLS so that Provisioning
1690                      * tool can initiate JUST_WORKS ownership transfer process.
1691                      */
1692                     if(memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) == 0)
1693                     {
1694                         gDoxm->oxmSel = newDoxm->oxmSel;
1695                         //Update new state in persistent storage
1696                         if ((UpdatePersistentStorage(gDoxm) == true))
1697                         {
1698                             ehRet = OC_EH_OK;
1699                         }
1700                         else
1701                         {
1702                             OIC_LOG(WARNING, TAG, "Failed to update DOXM in persistent storage");
1703                             ehRet = OC_EH_ERROR;
1704                         }
1705
1706 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1707                         CAResult_t caRes = CA_STATUS_OK;
1708
1709                         caRes = CAEnableAnonECDHCipherSuite(false);
1710                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1711                         OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1712
1713                         caRes = CASelectCipherSuite(MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
1714                                                     ehRequest->devAddr.adapter);
1715                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1716
1717                         if (!isDuplicatedMsg)
1718                         {
1719                             char ranPin[OXM_RANDOM_PIN_MAX_SIZE + 1] = {0};
1720                             if (OC_STACK_OK == GeneratePin(ranPin, sizeof(ranPin)))
1721                             {
1722                                 //Set the device id to derive temporal PSK
1723                                 SetUuidForPinBasedOxm(&gDoxm->deviceID);
1724
1725                                 /**
1726                                  * Since PSK will be used directly by DTLS layer while PIN based ownership transfer,
1727                                  * Credential should not be saved into SVR.
1728                                  * For this reason, use a temporary get_psk_info callback to random PIN OxM.
1729                                  */
1730                                 caRes = CAregisterPskCredentialsHandler(GetDtlsPskForRandomPinOxm);
1731                                 VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1732                                 ehRet = OC_EH_OK;
1733                             }
1734                             else
1735                             {
1736                                 OIC_LOG(ERROR, TAG, "Failed to generate random PIN");
1737                                 ehRet = OC_EH_ERROR;
1738                             }
1739                         }
1740 #endif // __WITH_DTLS__ or __WITH_TLS__
1741                     }
1742 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1743                     else
1744                     {
1745                         //Save the owner's UUID to derive owner credential
1746                         memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1747
1748                         // In case of random-pin based OTM, close the PIN display if callback is registered.
1749                         if (!isDuplicatedMsg)
1750                         {
1751                             ClosePinDisplay();
1752                         }
1753
1754                         //Update new state in persistent storage
1755                         if (UpdatePersistentStorage(gDoxm) == true)
1756                         {
1757                             ehRet = OC_EH_OK;
1758                         }
1759                         else
1760                         {
1761                             OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1762                             ehRet = OC_EH_ERROR;
1763                         }
1764                     }
1765 #endif // __WITH_DTLS__ or __WITH_TLS__
1766                 }
1767 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1768                 else if (OIC_MANUFACTURER_CERTIFICATE ==  newDoxm->oxmSel || OIC_CON_MFG_CERT == newDoxm->oxmSel)
1769                 {
1770                     if (CONFIRM_STATE_ACCEPTED != gConfirmState && CONFIRM_STATE_DENIED != gConfirmState)
1771                     {
1772                         //Get user confirmation
1773                         if (false == newDoxm->owned &&
1774                             false == isDuplicatedMsg &&
1775                             memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) != 0)
1776                         {
1777                             gConfirmMsgId = ehRequest->messageID;
1778                             gConfirmState = CONFIRM_STATE_WAIT;
1779
1780                             if (OC_STACK_OK != VerifyUserConfirm())
1781                             {
1782                                 if (OC_STACK_OK != VerifyOwnershipTransfer(NULL, USER_CONFIRM))
1783                                 {
1784                                     ehRet = OC_EH_NOT_ACCEPTABLE;
1785                                     gConfirmState = CONFIRM_STATE_DENIED;
1786                                     goto exit;
1787                                 }
1788                             }
1789                             else
1790                             {
1791                                 OCEntityHandlerRequest * ehRequestCopy = CopyRequest(ehRequest);
1792                                 VERIFY_NON_NULL(TAG, ehRequestCopy, ERROR);
1793
1794                                 g_condWait = oc_cond_new();
1795                                 g_mutexWait = oc_mutex_new();
1796                                 if (oc_thread_new (&g_waitConfirmThreadId, WaitConfirm, ehRequestCopy))
1797                                 {
1798                                     oc_thread_detach(g_waitConfirmThreadId);
1799                                 }
1800
1801                                 previousMsgId = ehRequest->messageID;
1802
1803                                 return OC_EH_SLOW;
1804                             }
1805                         }
1806                     }
1807                     else if (CONFIRM_STATE_DENIED == gConfirmState)
1808                     {
1809                         ehRet = OC_EH_NOT_ACCEPTABLE;
1810                         goto exit;
1811                     }
1812
1813                     //Save the owner's UUID to derive owner credential
1814                     memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1815                     gDoxm->oxmSel = newDoxm->oxmSel;
1816                     //Update new state in persistent storage
1817                     if (UpdatePersistentStorage(gDoxm))
1818                     {
1819                         ehRet = OC_EH_OK;
1820                     }
1821                     else
1822                     {
1823                         OIC_LOG(WARNING, TAG, "Failed to update DOXM in persistent storage");
1824                         ehRet = OC_EH_ERROR;
1825                     }
1826                     CAResult_t caRes = CAEnableAnonECDHCipherSuite(false);
1827                     VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1828                     OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1829
1830                     //Unset pre-selected ciphersuite, if any
1831                     caRes = CASelectCipherSuite(0, ehRequest->devAddr.adapter);
1832                     VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1833                     OIC_LOG(DEBUG, TAG, "No ciphersuite preferred");
1834
1835                     VERIFY_SUCCESS(TAG, CA_STATUS_OK == CAregisterPkixInfoHandler(GetManufacturerPkixInfo), ERROR);
1836                     VERIFY_SUCCESS(TAG, CA_STATUS_OK == CAregisterGetCredentialTypesHandler(InitManufacturerCipherSuiteList), ERROR);
1837                 }
1838 #endif // __WITH_DTLS__ or __WITH_TLS__
1839             }
1840
1841             /*
1842              * When current state of the device is un-owned and Provisioning
1843              * Tool is attempting to change the state to 'Owned' with a
1844              * qualified value for the field 'Owner'
1845              */
1846             if ((false == gDoxm->owned) && (true == newDoxm->owned) &&
1847                     (memcmp(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t)) == 0))
1848             {
1849                 //Change the SVR's resource owner as owner device.
1850                 OCStackResult ownerRes = SetAclRownerId(&gDoxm->owner);
1851                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1852                 {
1853                     ehRet = OC_EH_ERROR;
1854                     goto exit;
1855                 }
1856                 ownerRes = SetAmaclRownerId(&gDoxm->owner);
1857                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1858                 {
1859                     ehRet = OC_EH_ERROR;
1860                     goto exit;
1861                 }
1862                 ownerRes = SetCredRownerId(&gDoxm->owner);
1863                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1864                 {
1865                     ehRet = OC_EH_ERROR;
1866                     goto exit;
1867                 }
1868                 ownerRes = SetPstatRownerId(&gDoxm->owner);
1869                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1870                 {
1871                     ehRet = OC_EH_ERROR;
1872                     goto exit;
1873                 }
1874
1875                 gDoxm->owned = true;
1876                 memcpy(&gDoxm->rownerID, &gDoxm->owner, sizeof(OicUuid_t));
1877
1878                 // Update new state in persistent storage
1879                 if (UpdatePersistentStorage(gDoxm))
1880                 {
1881                     //Update default ACE of security resource to prevent anonymous user access.
1882                     if(OC_STACK_OK == UpdateDefaultSecProvACE())
1883                     {
1884                         ehRet = OC_EH_OK;
1885                     }
1886                     else
1887                     {
1888                         OIC_LOG(ERROR, TAG, "Failed to remove default ACL for security provisioning");
1889                         ehRet = OC_EH_ERROR;
1890                     }
1891                 }
1892                 else
1893                 {
1894                     OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1895                     ehRet = OC_EH_ERROR;
1896                 }
1897 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1898                 if (OIC_MANUFACTURER_CERTIFICATE == gDoxm->oxmSel ||
1899                                             OIC_CON_MFG_CERT== gDoxm->oxmSel)
1900                 {
1901                     CAregisterPkixInfoHandler(GetPkixInfo);
1902                     CAregisterGetCredentialTypesHandler(InitCipherSuiteList);
1903                 }
1904
1905                 InvokeOtmEventHandler(ehRequest->devAddr.addr, ehRequest->devAddr.port,
1906                                       &gDoxm->owner, OIC_OTM_DONE);
1907 #endif // __WITH_DTLS__ or __WITH_TLS__
1908             }
1909         }
1910     }
1911
1912 exit:
1913     if(OC_EH_OK != ehRet)
1914     {
1915         /*
1916          * If some error is occured while ownership transfer,
1917          * ownership transfer related resource should be revert back to initial status.
1918         */
1919         if(gDoxm)
1920         {
1921             if(!gDoxm->owned)
1922             {
1923                 OIC_LOG(WARNING, TAG, "The operation failed during handle DOXM request");
1924
1925                 if (!isDuplicatedMsg)
1926                 {
1927 #if defined (__WITH_TLS__) || defined(__WITH_DTLS__)
1928                     InvokeOtmEventHandler(ehRequest->devAddr.addr, ehRequest->devAddr.port,
1929                                           NULL, OIC_OTM_ERROR);
1930 #endif
1931                     ResetSecureResourceInPS();
1932                     OIC_LOG(WARNING, TAG, "DOXM will be reverted.");
1933                 }
1934             }
1935         }
1936         else
1937         {
1938             OIC_LOG(ERROR, TAG, "Invalid DOXM resource.");
1939         }
1940     }
1941
1942     previousMsgId = ehRequest->messageID;
1943
1944 #if defined (__WITH_TLS__) || defined(__WITH_DTLS__)
1945     CAEndpoint_t peer = {0};
1946     OCDevAddr devAddr =  ehRequest->devAddr;
1947
1948     memcpy(&peer.addr, &devAddr.addr, sizeof(peer.addr));
1949     peer.port = devAddr.port;
1950     peer.adapter = (CATransportAdapter_t)devAddr.adapter;
1951
1952     if ((devAddr.flags & OC_FLAG_SECURE) && (false == CAIsExistSslPeer(&peer)))
1953     {
1954         OIC_LOG_V(WARNING, TAG, "Not Exist Peer");
1955         ehRet = OC_EH_OK;
1956     }
1957     else
1958     {
1959         //Send payload to request originator
1960         ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
1961             OC_EH_OK : OC_EH_ERROR;
1962     }
1963 #else
1964     //Send payload to request originator
1965     ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
1966         OC_EH_OK : OC_EH_ERROR;
1967 #endif
1968
1969     DeleteDoxmBinData(newDoxm);
1970
1971     return ehRet;
1972 }
1973
1974 #ifdef MULTIPLE_OWNER
1975 static OCEntityHandlerResult HandleDoxmDeleteRequest(const OCEntityHandlerRequest *ehRequest)
1976 {
1977     OIC_LOG(DEBUG, TAG, "Processing DoxmDeleteRequest");
1978
1979     OCEntityHandlerResult ehRet = OC_EH_BAD_REQ;
1980
1981     if (NULL == ehRequest->query)
1982     {
1983         return ehRet;
1984     }
1985
1986     OicParseQueryIter_t parseIter = { .attrPos=NULL };
1987     OicUuid_t subject = {.id={0}};
1988
1989     //Parsing REST query to get the subject
1990     ParseQueryIterInit((unsigned char *)ehRequest->query, &parseIter);
1991     while (GetNextQuery(&parseIter))
1992     {
1993         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_SUBOWNERID_NAME,
1994                 parseIter.attrLen) == 0)
1995         {
1996             if (0 == strncmp((const char*)parseIter.valPos, WILDCARD_RESOURCE_URI,
1997                              strlen(WILDCARD_RESOURCE_URI)))
1998             {
1999                 if(OC_STACK_RESOURCE_DELETED == RemoveSubOwner(&WILDCARD_SUBJECT_ID))
2000                 {
2001                     ehRet = OC_EH_RESOURCE_DELETED;
2002                 }
2003             }
2004             else
2005             {
2006                 OCStackResult ret = ConvertStrToUuid((const char*)parseIter.valPos, &subject);
2007                 VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
2008
2009                 if(OC_STACK_RESOURCE_DELETED == RemoveSubOwner(&subject))
2010                 {
2011                     ehRet = OC_EH_RESOURCE_DELETED;
2012                 }
2013             }
2014         }
2015     }
2016
2017     //Send response to request originator
2018     ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
2019                    OC_EH_OK : OC_EH_ERROR;
2020
2021     return ehRet;
2022 exit:
2023     return OC_EH_ERROR;
2024 }
2025 #endif //MULTIPLE_OWNER
2026
2027 OCEntityHandlerResult DoxmEntityHandler(OCEntityHandlerFlag flag,
2028                                         OCEntityHandlerRequest * ehRequest,
2029                                         void* callbackParam)
2030 {
2031     (void)callbackParam;
2032     OCEntityHandlerResult ehRet = OC_EH_ERROR;
2033
2034     if(NULL == ehRequest)
2035     {
2036         return ehRet;
2037     }
2038
2039     oc_mutex_lock(g_mutexDoxm);
2040
2041     if(g_isDoxmNull)
2042     {
2043         oc_mutex_unlock(g_mutexDoxm);
2044         return OC_EH_SERVICE_UNAVAILABLE;
2045     }
2046
2047     if (flag & OC_REQUEST_FLAG)
2048     {
2049         OIC_LOG(DEBUG, TAG, "Flag includes OC_REQUEST_FLAG");
2050
2051         switch (ehRequest->method)
2052         {
2053             case OC_REST_GET:
2054                 ehRet = HandleDoxmGetRequest(ehRequest);
2055                 break;
2056
2057             case OC_REST_POST:
2058                 ehRet = HandleDoxmPostRequest(ehRequest);
2059                 break;
2060
2061 #ifdef MULTIPLE_OWNER
2062             case OC_REST_DELETE:
2063                 ehRet = HandleDoxmDeleteRequest(ehRequest);
2064                 break;
2065 #endif //MULTIPLE_OWNER
2066
2067             default:
2068                 ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
2069                                OC_EH_OK : OC_EH_ERROR;
2070                 break;
2071         }
2072
2073         oc_mutex_unlock(g_mutexDoxm);
2074     }
2075
2076     return ehRet;
2077 }
2078
2079 OCStackResult CreateDoxmResource()
2080 {
2081     OCStackResult ret = OCCreateResource(&gDoxmHandle,
2082                                          OIC_RSRC_TYPE_SEC_DOXM,
2083                                          OC_RSRVD_INTERFACE_DEFAULT,
2084                                          OIC_RSRC_DOXM_URI,
2085                                          DoxmEntityHandler,
2086                                          NULL,
2087                                          OC_SECURE |
2088                                          OC_DISCOVERABLE);
2089
2090     if (OC_STACK_OK != ret)
2091     {
2092         OIC_LOG (FATAL, TAG, "Unable to instantiate Doxm resource");
2093         DeInitDoxmResource();
2094     }
2095     return ret;
2096 }
2097
2098 /**
2099  * Checks if DeviceID is generated during provisioning for the new device.
2100  * If DeviceID is NULL then generates the new DeviceID.
2101  * Once DeviceID is assigned to the device it does not change for the lifetime of the device.
2102  */
2103 static OCStackResult CheckDeviceID()
2104 {
2105     OIC_LOG_V(DEBUG, TAG, "IN: %s", __func__);
2106
2107     OCStackResult ret = OC_STACK_ERROR;
2108     bool validId = false;
2109
2110     if (!gDoxm)
2111     {
2112         OIC_LOG_V(ERROR, TAG, "%s: gDoxm is NULL", __func__);
2113         return OC_STACK_INVALID_PARAM;
2114     }
2115
2116     for (uint8_t i = 0; i < UUID_LENGTH; i++)
2117     {
2118         if (gDoxm->deviceID.id[i] != 0)
2119         {
2120             validId = true;
2121             break;
2122         }
2123     }
2124
2125     if (!validId)
2126     {
2127         char* strUuid = NULL;
2128 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
2129         //If seed value is exist, generate UUID using seed with SHA256
2130         if (0 != gUuidSeedSize)
2131         {
2132             uint8_t hashVal[MBEDTLS_MD_MAX_SIZE] = {0};
2133             mbedtls_md_context_t sha_ctx;
2134             int mbedret = 1;
2135
2136             OIC_LOG(DEBUG, TAG, "UUID will be generated using seed w/ SHA256");
2137             OIC_LOG(DEBUG, TAG, "Seed value : ");
2138             OIC_LOG_BUFFER(DEBUG, TAG, gUuidSeed, gUuidSeedSize);
2139
2140             mbedtls_md_init( &sha_ctx );
2141             mbedret = mbedtls_md_setup( &sha_ctx, mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ), 1 );
2142             if (0 == mbedret)
2143             {
2144                 mbedtls_md_starts( &sha_ctx );
2145                 mbedtls_md_update( &sha_ctx, gUuidSeed, gUuidSeedSize);
2146                 mbedtls_md_finish(&sha_ctx, (unsigned char*)hashVal);
2147                 memcpy(gDoxm->deviceID.id, hashVal, sizeof(gDoxm->deviceID.id));
2148                 ret = OC_STACK_OK;
2149             }
2150             else
2151             {
2152                 OIC_LOG_V(ERROR, TAG,  "mbedtls_md_setup() returned -0x%04x\n", -mbedret);
2153                 ret = OC_STACK_ERROR;
2154             }
2155             mbedtls_md_free( &sha_ctx );
2156         }
2157         else
2158         {
2159             if (RAND_UUID_OK != OCGenerateUuid(gDoxm->deviceID.id))
2160             {
2161                 OIC_LOG(FATAL, TAG, "Generate UUID for Server Instance failed!");
2162                 return OC_STACK_ERROR;
2163             }
2164             ret = OC_STACK_OK;
2165         }
2166 #else
2167         if (RAND_UUID_OK != OCGenerateUuid(gDoxm->deviceID.id))
2168         {
2169             OIC_LOG(FATAL, TAG, "Generate UUID for Server Instance failed!");
2170             return ret;
2171         }
2172         ret = OC_STACK_OK;
2173 #endif
2174
2175         if (OC_STACK_OK == ConvertUuidToStr(&gDoxm->deviceID, &strUuid))
2176         {
2177             OIC_LOG_V(DEBUG, TAG, "Generated device UUID is [%s]", strUuid);
2178             OICFree(strUuid);
2179         }
2180         else
2181         {
2182             OIC_LOG(WARNING, TAG, "Failed to convert UUID to string");
2183         }
2184
2185
2186         if (!UpdatePersistentStorage(gDoxm))
2187         {
2188             //TODO: After registering PSI handler in all samples, do ret = OC_STACK_OK here.
2189             OIC_LOG(FATAL, TAG, "UpdatePersistentStorage failed!");
2190         }
2191     }
2192     else
2193     {
2194         ret = OC_STACK_OK;
2195     }
2196
2197     OIC_LOG_V(DEBUG, TAG, "OUT: %s", __func__);
2198
2199     return ret;
2200 }
2201
2202 /**
2203  * Get the default value.
2204  *
2205  * @return the default value of doxm, @ref OicSecDoxm_t.
2206  */
2207 static OicSecDoxm_t* GetDoxmDefault()
2208 {
2209     OIC_LOG(DEBUG, TAG, "GetDoxmToDefault");
2210     return &gDefaultDoxm;
2211 }
2212
2213 const OicSecDoxm_t* GetDoxmResourceData()
2214 {
2215     return gDoxm;
2216 }
2217
2218 #if defined(__WITH_DTLS__) && defined(MULTIPLE_OWNER)
2219 /**
2220  * Internal API to prepare MOT
2221  */
2222 static void PrepareMOT(const OicSecDoxm_t* doxm)
2223 {
2224     OIC_LOG(INFO, TAG, "IN PrepareMOT");
2225     VERIFY_NON_NULL(TAG, doxm, ERROR);
2226
2227     if(true == doxm->owned && NULL != doxm->mom && OIC_MULTIPLE_OWNER_DISABLE != doxm->mom->mode)
2228     {
2229         CAResult_t caRes = CA_STATUS_FAILED;
2230
2231         OIC_LOG(INFO, TAG, "Multiple Ownership Transfer Enabled!");
2232
2233         if(OIC_PRECONFIG_PIN == doxm->oxmSel)
2234         {
2235             caRes = CAEnableAnonECDHCipherSuite(false);
2236             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
2237             OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
2238
2239             caRes = CASelectCipherSuite((uint16_t)MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, CA_ADAPTER_IP);
2240             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
2241 #ifdef __WITH_TLS__
2242             caRes = CASelectCipherSuite((uint16_t)MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, CA_ADAPTER_TCP);
2243             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
2244 #endif
2245             OIC_LOG(INFO, TAG, "ECDHE_PSK CipherSuite will be used for MOT");
2246
2247             //Set the device id to derive temporal PSK
2248             SetUuidForPinBasedOxm(&doxm->deviceID);
2249         }
2250         else
2251         {
2252             OIC_LOG(ERROR, TAG, "Unsupported OxM for Multiple Ownership Transfer.");
2253             return;
2254         }
2255
2256         CAregisterSslHandshakeCallback(MultipleOwnerDTLSHandshakeCB);
2257     }
2258
2259     OIC_LOG(INFO, TAG, "OUT PrepareMOT");
2260     return;
2261 exit:
2262     OIC_LOG(WARNING, TAG, "Error in PrepareMOT");
2263 }
2264 #endif //defined(__WITH_DTLS__) && defined(MULTIPLE_OWNER)
2265
2266 OCStackResult InitDoxmResource()
2267 {
2268     OCStackResult ret = OC_STACK_ERROR;
2269
2270     if (!g_mutexDoxm)
2271     {
2272         g_mutexDoxm = oc_mutex_new();
2273             if(!g_mutexDoxm)
2274             {
2275                 return OC_STACK_ERROR;
2276             }
2277     }
2278
2279     gConfirmState = CONFIRM_STATE_READY;
2280     gConfirmMsgId = 0;
2281
2282     //Read DOXM resource from PS
2283     uint8_t *data = NULL;
2284     size_t size = 0;
2285     ret = GetSecureVirtualDatabaseFromPS(OIC_JSON_DOXM_NAME, &data, &size);
2286     // If database read failed
2287     if (OC_STACK_OK != ret)
2288     {
2289        OIC_LOG (DEBUG, TAG, "ReadSVDataFromPS failed");
2290     }
2291     if (data)
2292     {
2293        // Read DOXM resource from PS
2294        ret = CBORPayloadToDoxm(data, size, &gDoxm);
2295     }
2296     /*
2297      * If SVR database in persistent storage got corrupted or
2298      * is not available for some reason, a default doxm is created
2299      * which allows user to initiate doxm provisioning again.
2300      */
2301      if ((OC_STACK_OK != ret) || !data || !gDoxm)
2302     {
2303         gDoxm = GetDoxmDefault();
2304     }
2305
2306      oc_mutex_lock(g_mutexDoxm);
2307      g_isDoxmNull = false;
2308      oc_mutex_unlock(g_mutexDoxm);
2309
2310     //In case of the server is shut down unintentionally, we should initialize the owner
2311     if(gDoxm && (false == gDoxm->owned))
2312     {
2313         OicUuid_t emptyUuid = {.id={0}};
2314         memcpy(&gDoxm->owner, &emptyUuid, sizeof(OicUuid_t));
2315 #if defined (__WITH_TLS__) || defined(__WITH_DTLS__)
2316         InvokeOtmEventHandler(NULL, 0, NULL, OIC_OTM_READY);
2317 #endif
2318     }
2319
2320     ret = CheckDeviceID();
2321     if (ret == OC_STACK_OK)
2322     {
2323         OIC_LOG_V(DEBUG, TAG, "Initial Doxm Owned = %d", gDoxm->owned);
2324         //Instantiate 'oic.sec.doxm'
2325         ret = CreateDoxmResource();
2326     }
2327     else
2328     {
2329         OIC_LOG (ERROR, TAG, "CheckDeviceID failed");
2330     }
2331     OICFree(data);
2332
2333 #if defined(__WITH_DTLS__) && defined(MULTIPLE_OWNER)
2334     //if MOT is enabled, MOT should be prepared.
2335     if(gDoxm && gDoxm->owned)
2336     {
2337         PrepareMOT(gDoxm);
2338     }
2339 #endif // defined(__WITH_DTLS__) && defined(MULTIPLE_OWNER)
2340
2341     return ret;
2342 }
2343
2344 OCStackResult DeInitDoxmResource()
2345 {
2346     oc_mutex_lock(g_mutexDoxm);
2347     OCStackResult ret = OCDeleteResource(gDoxmHandle);
2348     if (gDoxm  != &gDefaultDoxm)
2349     {
2350         DeleteDoxmBinData(gDoxm);
2351     }
2352     gDoxm = NULL;
2353     g_isDoxmNull = true;
2354
2355     if (OC_STACK_OK == ret)
2356     {
2357         oc_mutex_unlock(g_mutexDoxm);
2358         return OC_STACK_OK;
2359     }
2360     else
2361     {
2362         oc_mutex_unlock(g_mutexDoxm);
2363         return OC_STACK_ERROR;
2364     }
2365 }
2366
2367 OCStackResult GetDoxmDeviceID(OicUuid_t *deviceID)
2368 {
2369     if (deviceID && gDoxm)
2370     {
2371        *deviceID = gDoxm->deviceID;
2372         return OC_STACK_OK;
2373     }
2374     return OC_STACK_ERROR;
2375 }
2376
2377 OCStackResult GetDoxmIsOwned(bool *isOwned)
2378 {
2379     OIC_LOG_V(INFO, TAG, "In %s", __func__);
2380     if (isOwned && gDoxm)
2381     {
2382         *isOwned = gDoxm->owned;
2383         OIC_LOG_V(INFO, TAG, "isOwned - %s", *isOwned ? "true" : "false");
2384         OIC_LOG_V(INFO, TAG, "Out %s", __func__);
2385         return OC_STACK_OK;
2386     }
2387     return OC_STACK_ERROR;
2388 }
2389
2390 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
2391 OCStackResult SetDoxmDeviceIDSeed(const uint8_t* seed, size_t seedSize)
2392 {
2393     OIC_LOG_V(INFO, TAG, "In %s", __func__);
2394
2395     if (NULL == seed)
2396     {
2397         return OC_STACK_INVALID_PARAM;
2398     }
2399     if (MAX_UUID_SEED_SIZE < seedSize)
2400     {
2401         OIC_LOG_V(ERROR, TAG, "Seed size is too long (MAX size is %d bytes)", MAX_UUID_SEED_SIZE);
2402         return OC_STACK_INVALID_PARAM;
2403     }
2404     if (MIN_UUID_SEED_SIZE > seedSize)
2405     {
2406         OIC_LOG_V(ERROR, TAG, "Seed size is too small (MIN size is %d bytes)", MIN_UUID_SEED_SIZE);
2407         return OC_STACK_INVALID_PARAM;
2408     }
2409
2410     memset(gUuidSeed, 0x00, sizeof(gUuidSeed));
2411     memcpy(gUuidSeed, seed, seedSize);
2412     gUuidSeedSize = seedSize;
2413
2414     OIC_LOG_V(INFO, TAG, "Out %s", __func__);
2415
2416     return OC_STACK_OK;
2417 }
2418
2419 #endif
2420
2421 OCStackResult SetDoxmDeviceID(const OicUuid_t *deviceID)
2422 {
2423     bool isOwnerUpdated = false;
2424     bool isRownerUpdated = false;
2425     if (NULL == deviceID)
2426     {
2427         return OC_STACK_INVALID_PARAM;
2428     }
2429     if (NULL == gDoxm)
2430     {
2431         OIC_LOG(ERROR, TAG, "Doxm resource is not initialized.");
2432         return OC_STACK_NO_RESOURCE;
2433     }
2434
2435 #ifdef __WITH_DTLS__
2436     //for normal device.
2437     if (true == gDoxm->owned
2438             && memcmp(gEmptyUuid, gDoxm->owner.id, sizeof(gDoxm->owner.id)) != 0
2439             && memcmp(gDoxm->deviceID.id, gDoxm->owner.id, sizeof(gDoxm->owner.id)) != 0)
2440     {
2441         OIC_LOG(ERROR, TAG, "This device owned by owner's device.");
2442         OIC_LOG(ERROR, TAG, "Device UUID cannot be changed to guarantee the reliability of the connection.");
2443         return OC_STACK_ERROR;
2444     }
2445 #endif //__WITH_DTLS
2446
2447     //Save the previous UUID
2448     OicUuid_t prevUuid;
2449     memcpy(prevUuid.id, gDoxm->deviceID.id, sizeof(prevUuid.id));
2450
2451     //Change the device UUID
2452     memcpy(gDoxm->deviceID.id, deviceID->id, sizeof(deviceID->id));
2453
2454     //Change the owner ID if necessary
2455     if (memcmp(gDoxm->owner.id, prevUuid.id, sizeof(prevUuid.id)) == 0)
2456     {
2457         memcpy(gDoxm->owner.id, deviceID->id, sizeof(deviceID->id));
2458         isOwnerUpdated = true;
2459     }
2460     //Change the resource owner ID if necessary
2461     if (memcmp(gDoxm->rownerID.id, prevUuid.id, sizeof(prevUuid.id)) == 0)
2462     {
2463         memcpy(gDoxm->rownerID.id, deviceID->id, sizeof(deviceID->id));
2464         isRownerUpdated = true;
2465     }
2466     // TODO: T.B.D Change resource owner for pstat, acl and cred
2467
2468     //Update PS
2469     if (!UpdatePersistentStorage(gDoxm))
2470     {
2471         //revert UUID in case of PSI error
2472         memcpy(gDoxm->deviceID.id, prevUuid.id, sizeof(prevUuid.id));
2473         if (isOwnerUpdated)
2474         {
2475             memcpy(gDoxm->owner.id, prevUuid.id, sizeof(prevUuid.id));
2476         }
2477         if (isRownerUpdated)
2478         {
2479             memcpy(gDoxm->rownerID.id, prevUuid.id, sizeof(prevUuid.id));
2480         }
2481         // TODO: T.B.D Revert resource owner for pstat, acl and cred
2482
2483         OIC_LOG(ERROR, TAG, "Failed to update persistent storage");
2484         return OC_STACK_ERROR;
2485     }
2486     return OC_STACK_OK;
2487 }
2488
2489 OCStackResult GetDoxmDevOwnerId(OicUuid_t *devownerid)
2490 {
2491     OCStackResult retVal = OC_STACK_ERROR;
2492     if (gDoxm)
2493     {
2494         OIC_LOG_V(DEBUG, TAG, "GetDoxmDevOwnerId(): gDoxm owned =  %d.", \
2495             gDoxm->owned);
2496         //if (gDoxm->owned)
2497         {
2498             *devownerid = gDoxm->owner;
2499             retVal = OC_STACK_OK;
2500         }
2501     }
2502     return retVal;
2503 }
2504
2505 OCStackResult GetDoxmRownerId(OicUuid_t *rowneruuid)
2506 {
2507     OCStackResult retVal = OC_STACK_ERROR;
2508     if (gDoxm)
2509     {
2510        // if( gDoxm->owned )
2511         {
2512             *rowneruuid = gDoxm->rownerID;
2513                     retVal = OC_STACK_OK;
2514         }
2515     }
2516     return retVal;
2517 }
2518
2519 #ifdef MULTIPLE_OWNER
2520 /**
2521  * Compare the UUID to SubOwner.
2522  *
2523  * @param[in] uuid device UUID
2524  *
2525  * @return true if context->subjectId exist subowner list, else false.
2526  */
2527 bool IsSubOwner(const OicUuid_t* uuid)
2528 {
2529     bool retVal = false;
2530
2531     if (NULL == uuid)
2532     {
2533         return retVal;
2534     }
2535
2536     if (gDoxm && gDoxm->subOwners)
2537     {
2538         if (memcmp(gDoxm->owner.id, uuid->id, sizeof(gDoxm->owner.id)) == 0)
2539         {
2540             return false;
2541         }
2542
2543         OicSecSubOwner_t* subOwner = NULL;
2544         LL_FOREACH(gDoxm->subOwners, subOwner)
2545         {
2546             if (memcmp(subOwner->uuid.id, uuid->id, sizeof(uuid->id)) == 0)
2547             {
2548                 return true;
2549             }
2550         }
2551     }
2552     return retVal;
2553 }
2554 #endif //MULTIPLE_OWNER
2555
2556 OCStackResult SetMOTStatus(bool enable)
2557 {
2558     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
2559 #ifdef MULTIPLE_OWNER
2560     OCStackResult ret = OC_STACK_NO_MEMORY;
2561     uint8_t *cborPayload = NULL;
2562     size_t size = 0;
2563     bool isDeallocateRequired = false;
2564
2565     VERIFY_NON_NULL(TAG, gDoxm, ERROR);
2566
2567     if (NULL == gDoxm->mom && !enable)
2568     {
2569         OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2570         return OC_STACK_OK;
2571     }
2572
2573     if (NULL == gDoxm->mom)
2574     {
2575         gDoxm->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
2576         VERIFY_NON_NULL(TAG, gDoxm->mom, ERROR);
2577         isDeallocateRequired = true;
2578     }
2579
2580     gDoxm->mom->mode = (enable ? OIC_MULTIPLE_OWNER_ENABLE : OIC_MULTIPLE_OWNER_DISABLE);
2581     gDoxm->oxmSel = OIC_PRECONFIG_PIN;
2582
2583     ret = DoxmToCBORPayload(gDoxm, &cborPayload, &size, false);
2584     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
2585
2586     ret = UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, cborPayload, size);
2587     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
2588
2589     isDeallocateRequired = false;
2590
2591 exit:
2592     if (isDeallocateRequired)
2593     {
2594         OICFree(gDoxm->mom);
2595     }
2596     if (cborPayload)
2597     {
2598         OICFree(cborPayload);
2599     }
2600     OIC_LOG_V(DEBUG, TAG, "Out %s : %d", __func__, ret);
2601     return ret;
2602 #else
2603     OC_UNUSED(enable);
2604     OIC_LOG(DEBUG, TAG, "Multiple Owner is not enabled.");
2605     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2606     return OC_STACK_ERROR;
2607 #endif //MULTIPLE_OWNER
2608 }
2609
2610 OCStackResult RemoveSubOwner(const OicUuid_t* subOwner)
2611 {
2612     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
2613 #ifdef MULTIPLE_OWNER
2614     OCStackResult ret = OC_STACK_ERROR;
2615     bool isDeleted = false;
2616
2617     if (NULL == subOwner)
2618     {
2619         OIC_LOG(ERROR, TAG, "Invalid sub owner UUID.");
2620         return OC_STACK_INVALID_PARAM;
2621     }
2622     if (NULL == gDoxm)
2623     {
2624         OIC_LOG(ERROR, TAG, "Doxm resource is NULL");
2625         return OC_STACK_NO_RESOURCE;
2626     }
2627     if ( NULL == gDoxm->subOwners)
2628     {
2629         OIC_LOG(WARNING, TAG, "Sub Owner list is empty.");
2630         return OC_STACK_ERROR;
2631     }
2632
2633     OicSecSubOwner_t* curSubOwner = NULL;
2634     OicSecSubOwner_t* tempSubOwner = NULL;
2635     LL_FOREACH_SAFE(gDoxm->subOwners, curSubOwner, tempSubOwner)
2636     {
2637         if (memcmp(curSubOwner->uuid.id, subOwner->id, sizeof(subOwner->id)) == 0 ||
2638             memcmp(WILDCARD_SUBJECT_ID.id, subOwner->id, sizeof(OicUuid_t)) == 0)
2639         {
2640             char* strUuid = NULL;
2641             ret = ConvertUuidToStr(&curSubOwner->uuid, &strUuid);
2642             if (OC_STACK_OK != ret)
2643             {
2644                 OIC_LOG_V(ERROR, TAG, "ConvertUuidToStr error : %d", ret);
2645                 break;
2646             }
2647
2648             OIC_LOG_V(INFO, TAG, "[%s] will be removed from sub owner list.", strUuid);
2649             LL_DELETE(gDoxm->subOwners, curSubOwner);
2650
2651             //Remove the cred for sub owner
2652             ret = RemoveCredential(&curSubOwner->uuid);
2653             if (OC_STACK_RESOURCE_DELETED != ret)
2654             {
2655                 OIC_LOG_V(WARNING, TAG, "RemoveCredential error for [%s] : %d", strUuid, ret);
2656                 break;
2657             }
2658
2659             // TODO: Remove the ACL for sub owner (Currently ACL is not required for sub-owner)
2660
2661             OICFree(strUuid);
2662
2663             isDeleted = true;
2664         }
2665     }
2666
2667     if (isDeleted)
2668     {
2669         //Update persistent storage
2670         if (UpdatePersistentStorage(gDoxm))
2671         {
2672             ret = OC_STACK_RESOURCE_DELETED;
2673         }
2674         else
2675         {
2676             OIC_LOG(ERROR, TAG, "UpdatePersistentStorage error");
2677             ret = OC_STACK_ERROR;
2678         }
2679     }
2680
2681     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2682     return ret;
2683 #else
2684     OC_UNUSED(subOwner);
2685     OIC_LOG(DEBUG, TAG, "Multiple Owner is not enabled.");
2686     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2687     return OC_STACK_ERROR;
2688 #endif //MULTIPLE_OWNER
2689
2690 }
2691
2692 OCStackResult SetNumberOfSubOwner(size_t numOfSubOwner)
2693 {
2694     OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
2695 #ifdef MULTIPLE_OWNER
2696     if (MAX_SUBOWNER_SIZE < numOfSubOwner || MIN_SUBOWNER_SIZE > numOfSubOwner)
2697     {
2698         OIC_LOG_V(ERROR, TAG, "Invalid number of sub owner : %zd", numOfSubOwner);
2699         return OC_STACK_INVALID_PARAM;
2700     }
2701     gMaxSubOwnerSize = numOfSubOwner;
2702     OIC_LOG_V(DEBUG, TAG, "Number of SubOwner = %zd", gMaxSubOwnerSize);
2703     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2704     return OC_STACK_OK;
2705 #else
2706     OC_UNUSED(numOfSubOwner);
2707     OIC_LOG(DEBUG, TAG, "Multiple Owner is not enabled.");
2708     OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
2709     return OC_STACK_ERROR;
2710 #endif //MULTIPLE_OWNER
2711 }
2712
2713 /**
2714  * Function to restore doxm resurce to initial status.
2715  * This function will use in case of error while ownership transfer
2716  */
2717 void RestoreDoxmToInitState()
2718 {
2719
2720     gConfirmState = CONFIRM_STATE_READY;
2721     gConfirmMsgId = 0;
2722
2723     if(gDoxm)
2724     {
2725         OIC_LOG(INFO, TAG, "DOXM resource will revert back to initial status.");
2726
2727         OicUuid_t emptyUuid = {.id={0}};
2728         memcpy(&(gDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
2729         gDoxm->owned = false;
2730         gDoxm->oxmSel = OIC_JUST_WORKS;
2731
2732         if(!UpdatePersistentStorage(gDoxm))
2733         {
2734             OIC_LOG(ERROR, TAG, "Failed to revert DOXM in persistent storage");
2735         }
2736     }
2737 }
2738
2739 OCStackResult SetDoxmSelfOwnership(const OicUuid_t* newROwner)
2740 {
2741     OCStackResult ret = OC_STACK_ERROR;
2742     uint8_t *cborPayload = NULL;
2743     size_t size = 0;
2744
2745     if(NULL == gDoxm)
2746     {
2747         ret = OC_STACK_NO_RESOURCE;
2748         return ret;
2749     }
2750
2751     if( newROwner && (false == gDoxm->owned) )
2752     {
2753         gDoxm->owned = true;
2754         memcpy(gDoxm->owner.id, newROwner->id, sizeof(newROwner->id));
2755         memcpy(gDoxm->rownerID.id, newROwner->id, sizeof(newROwner->id));
2756
2757         ret = DoxmToCBORPayload(gDoxm, &cborPayload, &size, false);
2758         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
2759
2760         ret = UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, cborPayload, size);
2761         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
2762
2763         OICFree(cborPayload);
2764     }
2765
2766     return ret;
2767
2768 exit:
2769     OICFree(cborPayload);
2770     return ret;
2771 }
2772