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 #ifdef __WITH_DTLS__
  29 #include "global.h"
  30 #endif
  31
  32 #include "ocstack.h"
  33 #include "oic_malloc.h"
  34 #include "payload_logging.h"
  35 #include "utlist.h"
  36 #include "ocrandom.h"
  37 #include "ocpayload.h"
  38 #include "ocpayloadcbor.h"
  39 #include "cainterface.h"
  40 #include "ocserverrequest.h"
  41 #include "resourcemanager.h"
  42 #include "doxmresource.h"
  43 #include "pstatresource.h"
  44 #include "aclresource.h"
  45 #include "amaclresource.h"
  46 #include "pconfresource.h"
  47 #include "dpairingresource.h"
  48 #include "psinterface.h"
  49 #include "srmresourcestrings.h"
  50 #include "securevirtualresourcetypes.h"
  51 #include "credresource.h"
  52 #include "srmutility.h"
  53 #include "pinoxmcommon.h"
  54
  55 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
  56 #include "pkix_interface.h"
  57 #endif
  58
  59 #define TAG  "OIC_SRM_DOXM"
  60 #define CHAR_ZERO ('0')
  61
  62 /** Default cbor payload size. This value is increased in case of CborErrorOutOfMemory.
  63  * The value of payload size is increased until reaching belox max cbor size. */
  64 static const uint16_t CBOR_SIZE = 512;
  65
  66 /** Max cbor size payload. */
  67 static const uint16_t CBOR_MAX_SIZE = 4400;
  68
  69 static OicSecDoxm_t        *gDoxm = NULL;
  70 static OCResourceHandle    gDoxmHandle = NULL;
  71
  72 static OicSecOxm_t gOicSecDoxmJustWorks = OIC_JUST_WORKS;
  73 static OicSecDoxm_t gDefaultDoxm =
  74 {
  75     NULL,                   /* OicUrn_t *oxmType */
  76     0,                      /* size_t oxmTypeLen */
  77     &gOicSecDoxmJustWorks,  /* uint16_t *oxm */
  78     1,                      /* size_t oxmLen */
  79     OIC_JUST_WORKS,         /* uint16_t oxmSel */
  80     SYMMETRIC_PAIR_WISE_KEY,/* OicSecCredType_t sct */
  81     false,                  /* bool owned */
  82     {.id = {0}},            /* OicUuid_t deviceID */
  83     false,                  /* bool dpc */
  84     {.id = {0}},            /* OicUuid_t owner */
  85 #ifdef _ENABLE_MULTIPLE_OWNER_
  86     NULL,                   /* OicSecSubOwner_t sub-owner list */
  87     NULL,                   /* OicSecMomType_t multiple owner mode */
  88 #endif //_ENABLE_MULTIPLE_OWNER_
  89     {.id = {0}},            /* OicUuid_t rownerID */
  90 };
  91
  92 /**
  93  * This method is internal method.
  94  * the param roParsed is optionally used to know whether cborPayload has
  95  * at least read only property value or not.
  96  */
  97 static OCStackResult CBORPayloadToDoxmBin(const uint8_t *cborPayload, size_t size,
  98                                 OicSecDoxm_t **doxm, bool *roParsed);
  99
 100 void DeleteDoxmBinData(OicSecDoxm_t* doxm)
 101 {
 102     if (doxm)
 103     {
 104         //Clean oxmType
 105         for (size_t i = 0; i < doxm->oxmTypeLen; i++)
 106         {
 107             OICFree(doxm->oxmType[i]);
 108         }
 109         OICFree(doxm->oxmType);
 110
 111         //clean oxm
 112         OICFree(doxm->oxm);
 113
 114 #ifdef _ENABLE_MULTIPLE_OWNER_
 115         //clean mom
 116         OICFree(doxm->mom);
 117
 118         //clean sub-owner list
 119         if(NULL != doxm->subOwners)
 120         {
 121             OicSecSubOwner_t* subowner = NULL;
 122             OicSecSubOwner_t* temp = NULL;
 123             LL_FOREACH_SAFE(doxm->subOwners, subowner, temp)
 124             {
 125                 LL_DELETE(doxm->subOwners, subowner);
 126                 OICFree(subowner);
 127             }
 128         }
 129 #endif //_ENABLE_MULTIPLE_OWNER_
 130
 131         //Clean doxm itself
 132         OICFree(doxm);
 133     }
 134 }
 135
 136 OCStackResult DoxmToCBORPayload(const OicSecDoxm_t *doxm, uint8_t **payload, size_t *size,
 137                                 bool rwOnly)
 138 {
 139     if (NULL == doxm || NULL == payload || NULL != *payload || NULL == size)
 140     {
 141         return OC_STACK_INVALID_PARAM;
 142     }
 143     size_t cborLen = *size;
 144     if (0 == cborLen)
 145     {
 146         cborLen = CBOR_SIZE;
 147     }
 148     *payload = NULL;
 149     *size = 0;
 150
 151     OCStackResult ret = OC_STACK_ERROR;
 152
 153     CborEncoder encoder;
 154     CborEncoder doxmMap;
 155     char* strUuid = NULL;
 156
 157     int64_t cborEncoderResult = CborNoError;
 158
 159     uint8_t *outPayload = (uint8_t *)OICCalloc(1, cborLen);
 160     VERIFY_NON_NULL(TAG, outPayload, ERROR);
 161     cbor_encoder_init(&encoder, outPayload, cborLen, 0);
 162
 163     cborEncoderResult = cbor_encoder_create_map(&encoder, &doxmMap, CborIndefiniteLength);
 164     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Map.");
 165
 166     //OxmType -- Not Mandatory
 167     if (doxm->oxmTypeLen > 0)
 168     {
 169         CborEncoder oxmType;
 170         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXM_TYPE_NAME,
 171             strlen(OIC_JSON_OXM_TYPE_NAME));
 172         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Tag.");
 173         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &oxmType, doxm->oxmTypeLen);
 174         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Array.");
 175
 176         for (size_t i = 0; i < doxm->oxmTypeLen; i++)
 177         {
 178             cborEncoderResult = cbor_encode_text_string(&oxmType, doxm->oxmType[i],
 179                 strlen(doxm->oxmType[i]));
 180             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmType Value.");
 181         }
 182         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &oxmType);
 183         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing oxmType.");
 184     }
 185
 186     //Oxm -- Not Mandatory
 187     if (doxm->oxmLen > 0 && false == rwOnly)
 188     {
 189         CborEncoder oxm;
 190         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXMS_NAME,
 191             strlen(OIC_JSON_OXMS_NAME));
 192         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Tag.");
 193         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &oxm, doxm->oxmLen);
 194         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Array.");
 195
 196         for (size_t i = 0; i < doxm->oxmLen; i++)
 197         {
 198             cborEncoderResult = cbor_encode_int(&oxm, doxm->oxm[i]);
 199             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding oxmName Value");
 200         }
 201         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &oxm);
 202         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing oxmName.");
 203     }
 204
 205     //OxmSel -- Mandatory
 206     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OXM_SEL_NAME,
 207         strlen(OIC_JSON_OXM_SEL_NAME));
 208     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Sel Tag.");
 209     cborEncoderResult = cbor_encode_int(&doxmMap, doxm->oxmSel);
 210     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Sel Value.");
 211
 212     //sct -- Mandatory
 213     if (false == rwOnly)
 214     {
 215         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_SUPPORTED_CRED_TYPE_NAME,
 216             strlen(OIC_JSON_SUPPORTED_CRED_TYPE_NAME));
 217         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Type Tag");
 218         cborEncoderResult = cbor_encode_int(&doxmMap, doxm->sct);
 219         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Type Value.");
 220     }
 221
 222     //Owned -- Mandatory
 223     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_OWNED_NAME,
 224         strlen(OIC_JSON_OWNED_NAME));
 225     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owned Tag.");
 226     cborEncoderResult = cbor_encode_boolean(&doxmMap, doxm->owned);
 227     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owned Value.");
 228
 229     if (false == rwOnly)
 230     {
 231         //DeviceId -- Mandatory
 232         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_DEVICE_ID_NAME,
 233             strlen(OIC_JSON_DEVICE_ID_NAME));
 234         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Device Id Tag.");
 235         ret = ConvertUuidToStr(&doxm->deviceID, &strUuid);
 236         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 237         cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 238         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Device Id Value.");
 239         OICFree(strUuid);
 240         strUuid = NULL;
 241     }
 242
 243 #ifdef _ENABLE_MULTIPLE_OWNER_
 244     //Device SubOwnerID -- Not Mandatory
 245     if(doxm->subOwners)
 246     {
 247         size_t subOwnerLen = 0;
 248         OicSecSubOwner_t* subOwner = NULL;
 249         LL_FOREACH(doxm->subOwners, subOwner)
 250         {
 251             subOwnerLen++;
 252         }
 253
 254         CborEncoder subOwners;
 255         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_SUBOWNERID_NAME,
 256             strlen(OIC_JSON_SUBOWNERID_NAME));
 257         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwnerId Tag.");
 258         cborEncoderResult = cbor_encoder_create_array(&doxmMap, &subOwners, subOwnerLen);
 259         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwner Array.");
 260
 261         subOwner = NULL;
 262         LL_FOREACH(doxm->subOwners, subOwner)
 263         {
 264             char* strUuid = NULL;
 265             ret = ConvertUuidToStr(&subOwner->uuid, &strUuid);
 266             VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 267             cborEncoderResult = cbor_encode_text_string(&subOwners, strUuid, strlen(strUuid));
 268             OICFree(strUuid);
 269             VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SubOwnerId Value");
 270         }
 271         cborEncoderResult = cbor_encoder_close_container(&doxmMap, &subOwners);
 272         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing SubOwnerId.");
 273     }
 274
 275     //Multiple Owner Mode -- Not Mandatory
 276     if(doxm->mom)
 277     {
 278         cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_MOM_NAME,
 279             strlen(OIC_JSON_MOM_NAME));
 280         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding mom Tag");
 281         cborEncoderResult = cbor_encode_int(&doxmMap, (int64_t)doxm->mom->mode);
 282         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding mom Value.");
 283     }
 284 #endif //_ENABLE_MULTIPLE_OWNER_
 285
 286     //devownerid -- Mandatory
 287     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_DEVOWNERID_NAME,
 288         strlen(OIC_JSON_DEVOWNERID_NAME));
 289     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owner Id Tag.");
 290     ret = ConvertUuidToStr(&doxm->owner, &strUuid);
 291     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 292     cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 293     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Owner Id Value.");
 294     OICFree(strUuid);
 295     strUuid = NULL;
 296
 297     //ROwner -- Mandatory
 298     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_ROWNERID_NAME,
 299         strlen(OIC_JSON_ROWNERID_NAME));
 300     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ROwner Id Tag.");
 301     ret = ConvertUuidToStr(&doxm->rownerID, &strUuid);
 302     VERIFY_SUCCESS(TAG, OC_STACK_OK == ret , ERROR);
 303     cborEncoderResult = cbor_encode_text_string(&doxmMap, strUuid, strlen(strUuid));
 304     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ROwner Id Value.");
 305     OICFree(strUuid);
 306     strUuid = NULL;
 307
 308     //x.org.iotivity.dpc -- not Mandatory(vendor-specific), but this type is boolean, so instance always has a value.
 309     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_DPC_NAME,
 310         strlen(OIC_JSON_DPC_NAME));
 311     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding DPC Tag.");
 312     cborEncoderResult = cbor_encode_boolean(&doxmMap, doxm->dpc);
 313     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding DPC Value.");
 314
 315     //RT -- Mandatory
 316     CborEncoder rtArray;
 317     cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_RT_NAME,
 318             strlen(OIC_JSON_RT_NAME));
 319     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding RT Name Tag.");
 320     cborEncoderResult = cbor_encoder_create_array(&doxmMap, &rtArray, 1);
 321     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding RT Value.");
 322     for (size_t i = 0; i < 1; i++)
 323     {
 324         cborEncoderResult = cbor_encode_text_string(&rtArray, OIC_RSRC_TYPE_SEC_DOXM,
 325                 strlen(OIC_RSRC_TYPE_SEC_DOXM));
 326         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding RT Value.");
 327     }
 328     cborEncoderResult = cbor_encoder_close_container(&doxmMap, &rtArray);
 329     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing RT.");
 330
 331     //IF-- Mandatory
 332      CborEncoder ifArray;
 333      cborEncoderResult = cbor_encode_text_string(&doxmMap, OIC_JSON_IF_NAME,
 334              strlen(OIC_JSON_IF_NAME));
 335      VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding IF Name Tag.");
 336      cborEncoderResult = cbor_encoder_create_array(&doxmMap, &ifArray, 1);
 337      VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Addding IF Value.");
 338     for (size_t i = 0; i < 1; i++)
 339     {
 340         cborEncoderResult = cbor_encode_text_string(&ifArray, OC_RSRVD_INTERFACE_DEFAULT,
 341                 strlen(OC_RSRVD_INTERFACE_DEFAULT));
 342         VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding IF Value.");
 343     }
 344     cborEncoderResult = cbor_encoder_close_container(&doxmMap, &ifArray);
 345     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing IF.");
 346
 347     cborEncoderResult = cbor_encoder_close_container(&encoder, &doxmMap);
 348     VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing DoxmMap.");
 349
 350     if (CborNoError == cborEncoderResult)
 351     {
 352         *size = cbor_encoder_get_buffer_size(&encoder, outPayload);
 353         *payload = outPayload;
 354         ret = OC_STACK_OK;
 355     }
 356 exit:
 357     if ((CborErrorOutOfMemory == cborEncoderResult) && (cborLen < CBOR_MAX_SIZE))
 358     {
 359         OIC_LOG(DEBUG, TAG, "Memory getting reallocated.");
 360         // reallocate and try again!
 361         OICFree(outPayload);
 362         // Since the allocated initial memory failed, double the memory.
 363         cborLen += cbor_encoder_get_buffer_size(&encoder, encoder.end);
 364         OIC_LOG_V(DEBUG, TAG, "Doxm reallocation size : %zd.", cborLen);
 365         cborEncoderResult = CborNoError;
 366         ret = DoxmToCBORPayload(doxm, payload, &cborLen, rwOnly);
 367         *size = cborLen;
 368     }
 369
 370     if ((CborNoError != cborEncoderResult) || (OC_STACK_OK != ret))
 371     {
 372        OICFree(outPayload);
 373        outPayload = NULL;
 374        *payload = NULL;
 375        *size = 0;
 376        ret = OC_STACK_ERROR;
 377     }
 378
 379     return ret;
 380 }
 381
 382 OCStackResult CBORPayloadToDoxm(const uint8_t *cborPayload, size_t size,
 383                                 OicSecDoxm_t **secDoxm)
 384 {
 385     return CBORPayloadToDoxmBin(cborPayload, size, secDoxm, NULL);
 386 }
 387
 388 static OCStackResult CBORPayloadToDoxmBin(const uint8_t *cborPayload, size_t size,
 389                                 OicSecDoxm_t **secDoxm, bool *roParsed)
 390 {
 391     if (NULL == cborPayload || NULL == secDoxm || NULL != *secDoxm || 0 == size)
 392     {
 393         return OC_STACK_INVALID_PARAM;
 394     }
 395
 396     OCStackResult ret = OC_STACK_ERROR;
 397     *secDoxm = NULL;
 398
 399     CborParser parser;
 400     CborError cborFindResult = CborNoError;
 401     char* strUuid = NULL;
 402     size_t len = 0;
 403     CborValue doxmCbor;
 404
 405     cbor_parser_init(cborPayload, size, 0, &parser, &doxmCbor);
 406     CborValue doxmMap;
 407     OicSecDoxm_t *doxm = (OicSecDoxm_t *)OICCalloc(1, sizeof(*doxm));
 408     VERIFY_NON_NULL(TAG, doxm, ERROR);
 409
 410     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXM_TYPE_NAME, &doxmMap);
 411     //OxmType -- not Mandatory
 412     if (CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 413     {
 414         CborValue oxmType;
 415
 416         cborFindResult = cbor_value_get_array_length(&doxmMap, &doxm->oxmTypeLen);
 417         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmTypeLen.");
 418         VERIFY_SUCCESS(TAG, doxm->oxmTypeLen != 0, ERROR);
 419
 420         doxm->oxmType = (OicUrn_t *)OICCalloc(doxm->oxmTypeLen, sizeof(*doxm->oxmType));
 421         VERIFY_NON_NULL(TAG, doxm->oxmType, ERROR);
 422
 423         cborFindResult = cbor_value_enter_container(&doxmMap, &oxmType);
 424         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering oxmType Array.")
 425
 426         int i = 0;
 427         size_t len = 0;
 428         while (cbor_value_is_valid(&oxmType) && cbor_value_is_text_string(&oxmType))
 429         {
 430             cborFindResult = cbor_value_dup_text_string(&oxmType, &doxm->oxmType[i++],
 431                                                         &len, NULL);
 432             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding omxType text string.");
 433             cborFindResult = cbor_value_advance(&oxmType);
 434             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing oxmType.");
 435         }
 436     }
 437
 438     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXMS_NAME, &doxmMap);
 439     //Oxm -- not Mandatory
 440     if (CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 441     {
 442         CborValue oxm;
 443         cborFindResult = cbor_value_get_array_length(&doxmMap, &doxm->oxmLen);
 444         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmName array Length.");
 445         VERIFY_SUCCESS(TAG, doxm->oxmLen != 0, ERROR);
 446
 447         doxm->oxm = (OicSecOxm_t *)OICCalloc(doxm->oxmLen, sizeof(*doxm->oxm));
 448         VERIFY_NON_NULL(TAG, doxm->oxm, ERROR);
 449
 450         cborFindResult = cbor_value_enter_container(&doxmMap, &oxm);
 451         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering oxmName Array.")
 452
 453         int i = 0;
 454         while (cbor_value_is_valid(&oxm) && cbor_value_is_integer(&oxm))
 455         {
 456             int tmp;
 457
 458             cborFindResult = cbor_value_get_int(&oxm, &tmp);
 459             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding oxmName Value")
 460             doxm->oxm[i++] = (OicSecOxm_t)tmp;
 461             cborFindResult = cbor_value_advance(&oxm);
 462             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing oxmName.")
 463         }
 464
 465         if (roParsed)
 466         {
 467             *roParsed = true;
 468         }
 469     }
 470     else
 471     {
 472         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 473         doxm->oxm = (OicSecOxm_t *) OICCalloc(gDoxm->oxmLen, sizeof(*doxm->oxm));
 474         VERIFY_NON_NULL(TAG, doxm->oxm, ERROR);
 475         doxm->oxmLen = gDoxm->oxmLen;
 476         for (size_t i = 0; i < gDoxm->oxmLen; i++)
 477         {
 478             doxm->oxm[i] = gDoxm->oxm[i];
 479         }
 480     }
 481
 482     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OXM_SEL_NAME, &doxmMap);
 483     if (CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 484     {
 485         int oxmSel;
 486
 487         cborFindResult = cbor_value_get_int(&doxmMap, &oxmSel);
 488         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Sel Name Value.")
 489         doxm->oxmSel = (OicSecOxm_t)oxmSel;
 490     }
 491     else // PUT/POST JSON may not have oxmsel so set it to the gDoxm->oxmSel
 492     {
 493         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 494         doxm->oxmSel = gDoxm->oxmSel;
 495     }
 496
 497     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_SUPPORTED_CRED_TYPE_NAME, &doxmMap);
 498     if (CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 499     {
 500         int sct;
 501
 502         cborFindResult = cbor_value_get_int(&doxmMap, &sct);
 503         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Sct Name Value.")
 504         doxm->sct = (OicSecCredType_t)sct;
 505
 506         if (roParsed)
 507         {
 508             *roParsed = true;
 509         }
 510     }
 511     else // PUT/POST JSON may not have sct so set it to the gDoxm->sct
 512     {
 513         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 514         doxm->sct = gDoxm->sct;
 515     }
 516
 517     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_OWNED_NAME, &doxmMap);
 518     if (CborNoError == cborFindResult && cbor_value_is_boolean(&doxmMap))
 519     {
 520         cborFindResult = cbor_value_get_boolean(&doxmMap, &doxm->owned);
 521         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Owned Value.")
 522     }
 523     else // PUT/POST JSON may not have owned so set it to the gDomx->owned
 524     {
 525         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 526         doxm->owned = gDoxm->owned;
 527     }
 528
 529     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_DPC_NAME, &doxmMap);
 530     if (CborNoError == cborFindResult && cbor_value_is_boolean(&doxmMap))
 531     {
 532         cborFindResult = cbor_value_get_boolean(&doxmMap, &doxm->dpc);
 533         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding DPC Value.")
 534     }
 535     else // PUT/POST JSON may not have dpc so set it to the gDomx->dpc
 536     {
 537         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 538         doxm->dpc = gDoxm->dpc;
 539     }
 540
 541     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_DEVICE_ID_NAME, &doxmMap);
 542     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 543     {
 544         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 545         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Device Id Value.");
 546         ret = ConvertStrToUuid(strUuid , &doxm->deviceID);
 547         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 548         OICFree(strUuid);
 549         strUuid  = NULL;
 550     }
 551     else
 552     {
 553         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 554         memcpy(doxm->deviceID.id, &gDoxm->deviceID.id, sizeof(doxm->deviceID.id));
 555     }
 556
 557     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_DEVOWNERID_NAME, &doxmMap);
 558     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 559     {
 560         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 561         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding Owner Value.");
 562         ret = ConvertStrToUuid(strUuid , &doxm->owner);
 563         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 564         OICFree(strUuid);
 565         strUuid  = NULL;
 566     }
 567     else
 568     {
 569         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 570         memcpy(doxm->owner.id, gDoxm->owner.id, sizeof(doxm->owner.id));
 571     }
 572
 573 #ifdef _ENABLE_MULTIPLE_OWNER_
 574     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_MOM_NAME, &doxmMap);
 575     if(CborNoError == cborFindResult && cbor_value_is_integer(&doxmMap))
 576     {
 577         int mode = 0;
 578         cborFindResult = cbor_value_get_int(&doxmMap, &mode);
 579         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding mom Name Value.")
 580         if(NULL == doxm->mom)
 581         {
 582             doxm->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
 583             VERIFY_NON_NULL(TAG, doxm->mom, ERROR);
 584         }
 585         doxm->mom->mode = (OicSecMomType_t)mode;
 586     }
 587     else if(NULL != gDoxm && NULL != gDoxm->mom)
 588     {
 589         // PUT/POST JSON may not have 'mom' so set it to the gDomx->mom
 590         if(NULL == doxm->mom)
 591         {
 592             doxm->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
 593             VERIFY_NON_NULL(TAG, doxm->mom, ERROR);
 594         }
 595         doxm->mom->mode = gDoxm->mom->mode;
 596     }
 597
 598     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_SUBOWNERID_NAME, &doxmMap);
 599     if(CborNoError == cborFindResult && cbor_value_is_array(&doxmMap))
 600     {
 601         size_t subOwnerLen = 0;
 602         CborValue subOwnerCbor;
 603         cborFindResult = cbor_value_get_array_length(&doxmMap, &subOwnerLen);
 604         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SubOwner array Length.");
 605         VERIFY_SUCCESS(TAG, 0 != subOwnerLen, ERROR);
 606
 607         cborFindResult = cbor_value_enter_container(&doxmMap, &subOwnerCbor);
 608         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering SubOwner Array.")
 609
 610         while (cbor_value_is_valid(&subOwnerCbor) && cbor_value_is_text_string(&subOwnerCbor))
 611         {
 612             OCStackResult convertRes = OC_STACK_ERROR;
 613             OicSecSubOwner_t* subOwner = NULL;
 614             char* strUuid = NULL;
 615             size_t uuidLen = 0;
 616
 617             cborFindResult = cbor_value_dup_text_string(&subOwnerCbor, &strUuid, &uuidLen, NULL);
 618             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SubOwnerId Value");
 619
 620             subOwner = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
 621             VERIFY_NON_NULL(TAG, subOwner, ERROR);
 622
 623             convertRes = ConvertStrToUuid(strUuid, &subOwner->uuid);
 624             VERIFY_SUCCESS(TAG, OC_STACK_OK == convertRes, ERROR);
 625             subOwner->status = MOT_STATUS_DONE;
 626             LL_APPEND(doxm->subOwners, subOwner);
 627
 628             cborFindResult = cbor_value_advance(&subOwnerCbor);
 629             VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing SubOwnerId.")
 630         }
 631     }
 632     else if(NULL != gDoxm && NULL != gDoxm->subOwners)
 633     {
 634         // PUT/POST JSON may not have 'subOwners' so set it to the gDomx->subOwners
 635         OicSecSubOwner_t* subOwnerItor = NULL;
 636         LL_FOREACH(gDoxm->subOwners, subOwnerItor)
 637         {
 638             OicSecSubOwner_t* subOwnerId = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
 639             VERIFY_NON_NULL(TAG, subOwnerId, ERROR);
 640
 641             memcpy(&subOwnerId->uuid, &subOwnerItor->uuid, sizeof(OicUuid_t));
 642             subOwnerId->status = MOT_STATUS_DONE;
 643
 644             LL_APPEND(doxm->subOwners, subOwnerId);
 645         }
 646     }
 647 #endif //_ENABLE_MULTIPLE_OWNER_
 648
 649     cborFindResult = cbor_value_map_find_value(&doxmCbor, OIC_JSON_ROWNERID_NAME, &doxmMap);
 650     if (CborNoError == cborFindResult && cbor_value_is_text_string(&doxmMap))
 651     {
 652         cborFindResult = cbor_value_dup_text_string(&doxmMap, &strUuid , &len, NULL);
 653         VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding ROwner Value.");
 654         ret = ConvertStrToUuid(strUuid , &doxm->rownerID);
 655         VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
 656         OICFree(strUuid);
 657         strUuid  = NULL;
 658     }
 659     else
 660     {
 661         VERIFY_NON_NULL(TAG, gDoxm, ERROR);
 662         memcpy(doxm->rownerID.id, gDoxm->rownerID.id, sizeof(doxm->rownerID.id));
 663     }
 664
 665     *secDoxm = doxm;
 666     ret = OC_STACK_OK;
 667
 668 exit:
 669     if (CborNoError != cborFindResult)
 670     {
 671         OIC_LOG (ERROR, TAG, "CBORPayloadToDoxm failed!!!");
 672         DeleteDoxmBinData(doxm);
 673         doxm = NULL;
 674         *secDoxm = NULL;
 675         ret = OC_STACK_ERROR;
 676     }
 677     return ret;
 678 }
 679
 680 /**
 681  * @todo document this function including why code might need to call this.
 682  * The current suspicion is that it's not being called as much as it should.
 683  */
 684 static bool UpdatePersistentStorage(OicSecDoxm_t * doxm)
 685 {
 686     bool bRet = false;
 687
 688     if (NULL != doxm)
 689     {
 690         // Convert Doxm data into CBOR for update to persistent storage
 691         uint8_t *payload = NULL;
 692         size_t size = 0;
 693         OCStackResult res = DoxmToCBORPayload(doxm, &payload, &size, false);
 694         if (payload && (OC_STACK_OK == res)
 695             && (OC_STACK_OK == UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, payload, size)))
 696         {
 697                 bRet = true;
 698         }
 699         OICFree(payload);
 700     }
 701     else
 702     {
 703         if (OC_STACK_OK == UpdateSecureResourceInPS(OIC_JSON_DOXM_NAME, NULL, 0))
 704         {
 705                 bRet = true;
 706         }
 707     }
 708
 709     return bRet;
 710 }
 711
 712 static bool ValidateQuery(const char * query)
 713 {
 714     // Send doxm resource data if the state of doxm resource
 715     // matches with the query parameters.
 716     // else send doxm resource data as NULL
 717     // TODO Remove this check and rely on Policy Engine
 718     // and Provisioning Mode to enforce provisioning-state
 719     // access rules. Eventually, the PE and PM code will
 720     // not send a request to the /doxm Entity Handler at all
 721     // if it should not respond.
 722     OIC_LOG (DEBUG, TAG, "In ValidateQuery");
 723     if(NULL == gDoxm)
 724     {
 725         return false;
 726     }
 727
 728     bool bOwnedQry = false;         // does querystring contains 'owned' query ?
 729     bool bOwnedMatch = false;       // does 'owned' query value matches with doxm.owned status?
 730     bool bDeviceIDQry = false;      // does querystring contains 'deviceid' query ?
 731     bool bDeviceIDMatch = false;    // does 'deviceid' query matches with doxm.deviceid ?
 732     bool bInterfaceQry = false;      // does querystring contains 'if' query ?
 733     bool bInterfaceMatch = false;    // does 'if' query matches with oic.if.baseline ?
 734 #ifdef _ENABLE_MULTIPLE_OWNER_
 735     bool bMotQry = false;         // does querystring contains 'mom' and 'owned' query ?
 736     bool bMotMatch = false;       // does 'mom' query value is not '0' && does query value matches with doxm.owned status?
 737 #endif //_ENABLE_MULTIPLE_OWNER_
 738
 739     OicParseQueryIter_t parseIter = {.attrPos = NULL};
 740
 741     ParseQueryIterInit((unsigned char*)query, &parseIter);
 742
 743     while (GetNextQuery(&parseIter))
 744     {
 745         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_OWNED_NAME, parseIter.attrLen) == 0)
 746         {
 747             bOwnedQry = true;
 748             if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_TRUE, parseIter.valLen) == 0) &&
 749                     (gDoxm->owned))
 750             {
 751                 bOwnedMatch = true;
 752             }
 753             else if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_FALSE, parseIter.valLen) == 0)
 754                     && (!gDoxm->owned))
 755             {
 756                 bOwnedMatch = true;
 757             }
 758         }
 759
 760 #ifdef _ENABLE_MULTIPLE_OWNER_
 761         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_MOM_NAME, strlen(OIC_JSON_MOM_NAME)) == 0)
 762         {
 763             bMotQry = true;
 764             OicSecMomType_t momMode = (OicSecMomType_t)(parseIter.valPos[0] - CHAR_ZERO);
 765             if(NULL != gDoxm->mom && momMode != gDoxm->mom->mode)
 766             {
 767                 if(GetNextQuery(&parseIter))
 768                 {
 769                     if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_OWNED_NAME, parseIter.attrLen) == 0)
 770                     {
 771                         if ((strncasecmp((char *)parseIter.valPos, OIC_SEC_TRUE, parseIter.valLen) == 0) &&
 772                                 (gDoxm->owned))
 773                         {
 774                             bMotMatch = true;
 775                         }
 776                     }
 777                 }
 778             }
 779             return bMotMatch;
 780         }
 781 #endif //_ENABLE_MULTIPLE_OWNER_
 782
 783         if (strncasecmp((char *)parseIter.attrPos, OIC_JSON_DEVICE_ID_NAME, parseIter.attrLen) == 0)
 784         {
 785             bDeviceIDQry = true;
 786             OicUuid_t subject = {.id={0}};
 787
 788             memcpy(subject.id, parseIter.valPos, parseIter.valLen);
 789             if (0 == memcmp(&gDoxm->deviceID.id, &subject.id, sizeof(gDoxm->deviceID.id)))
 790             {
 791                 bDeviceIDMatch = true;
 792             }
 793         }
 794
 795         if (strncasecmp((char *)parseIter.attrPos, OC_RSRVD_INTERFACE, parseIter.attrLen) == 0)
 796         {
 797             bInterfaceQry = true;
 798             if ((strncasecmp((char *)parseIter.valPos, OC_RSRVD_INTERFACE_DEFAULT, parseIter.valLen) == 0))
 799             {
 800                 bInterfaceMatch = true;
 801             }
 802             return (bInterfaceQry ? bInterfaceMatch: true);
 803         }
 804     }
 805
 806 #ifdef _ENABLE_MULTIPLE_OWNER_
 807     return ((bOwnedQry ? bOwnedMatch : true) &&
 808             (bDeviceIDQry ? bDeviceIDMatch : true) &&
 809             (bMotQry ? bMotMatch : true));
 810 #else
 811     return ((bOwnedQry ? bOwnedMatch : true) &&
 812             (bDeviceIDQry ? bDeviceIDMatch : true));
 813 #endif //_ENABLE_MULTIPLE_OWNER_
 814 }
 815
 816 static OCEntityHandlerResult HandleDoxmGetRequest (const OCEntityHandlerRequest * ehRequest)
 817 {
 818     OCEntityHandlerResult ehRet = OC_EH_OK;
 819
 820     OIC_LOG(DEBUG, TAG, "Doxm EntityHandle processing GET request");
 821
 822     //Checking if Get request is a query.
 823     if (ehRequest->query)
 824     {
 825         OIC_LOG_V(DEBUG,TAG,"query:%s",ehRequest->query);
 826         OIC_LOG(DEBUG, TAG, "HandleDoxmGetRequest processing query");
 827         if (!ValidateQuery(ehRequest->query))
 828         {
 829             ehRet = OC_EH_ERROR;
 830         }
 831     }
 832
 833     /*
 834      * For GET or Valid Query request return doxm resource CBOR payload.
 835      * For non-valid query return NULL json payload.
 836      * A device will 'always' have a default Doxm, so DoxmToCBORPayload will
 837      * return valid doxm resource json.
 838      */
 839     uint8_t *payload = NULL;
 840     size_t size = 0;
 841
 842     if (ehRet == OC_EH_OK)
 843     {
 844         if (OC_STACK_OK != DoxmToCBORPayload(gDoxm, &payload, &size, false))
 845         {
 846             OIC_LOG(WARNING, TAG, "DoxmToCBORPayload failed in HandleDoxmGetRequest");
 847         }
 848     }
 849
 850     OIC_LOG(DEBUG, TAG, "Send payload for doxm GET request");
 851     OIC_LOG_BUFFER(DEBUG, TAG, payload, size);
 852
 853     // Send response payload to request originator
 854     ehRet = ((SendSRMResponse(ehRequest, ehRet, payload, size)) == OC_STACK_OK) ?
 855                    OC_EH_OK : OC_EH_ERROR;
 856
 857     OICFree(payload);
 858
 859     return ehRet;
 860 }
 861
 862 static void updateWriteableProperty(const OicSecDoxm_t* src, OicSecDoxm_t* dst)
 863 {
 864     if(src && dst)
 865    {
 866         // update oxmsel
 867         dst->oxmSel = src->oxmSel;
 868
 869         //update owner
 870         memcpy(&(dst->owner), &(src->owner), sizeof(OicUuid_t));
 871
 872         //update rowner
 873         memcpy(&(dst->rownerID), &(src->rownerID), sizeof(OicUuid_t));
 874
 875         //update deviceuuid
 876         memcpy(&(dst->deviceID), &(src->deviceID), sizeof(OicUuid_t));
 877
 878         //Update owned status
 879         if(dst->owned != src->owned)
 880         {
 881             dst->owned = src->owned;
 882         }
 883
 884         //update oxms
 885         if(0 < src->oxmLen)
 886         {
 887             OicSecOxm_t* tempOxm = (OicSecOxm_t*)OICMalloc(sizeof(OicSecOxm_t) * src->oxmLen);
 888             if(NULL != tempOxm)
 889             {
 890                 for(size_t i = 0; i < src->oxmLen; i++)
 891                 {
 892                     tempOxm[i] = src->oxm[i];
 893                 }
 894                 OICFree(dst->oxm);
 895
 896                 dst->oxm = tempOxm;
 897                 dst->oxmLen = src->oxmLen;
 898             }
 899         }
 900
 901 #ifdef _ENABLE_MULTIPLE_OWNER_
 902         if(src->mom)
 903         {
 904             OIC_LOG(DEBUG, TAG, "dectected 'mom' property");
 905             if(NULL == dst->mom)
 906             {
 907                 dst->mom = (OicSecMom_t*)OICCalloc(1, sizeof(OicSecMom_t));
 908                 if(NULL != dst->mom)
 909                 {
 910                     dst->mom->mode = src->mom->mode;
 911                 }
 912             }
 913         }
 914 #endif //_ENABLE_MULTIPLE_OWNER_
 915     }
 916 }
 917
 918 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
 919 #ifdef _ENABLE_MULTIPLE_OWNER_
 920 /**
 921  * Callback function to handle MOT DTLS handshake result.
 922  * @param[out]   object           remote device information.
 923  * @param[out]   errorInfo        CA Error information.
 924  */
 925 void MultipleOwnerDTLSHandshakeCB(const CAEndpoint_t *object,
 926                                 const CAErrorInfo_t *errorInfo)
 927 {
 928     OIC_LOG(DEBUG, TAG, "IN MultipleOwnerDTLSHandshakeCB");
 929
 930     if(CA_STATUS_OK == errorInfo->result)
 931     {
 932         const CASecureEndpoint_t* authenticatedSubOwnerInfo = CAGetSecureEndpointData(object);
 933         if(authenticatedSubOwnerInfo)
 934         {
 935             OicSecSubOwner_t* subOwnerInst = NULL;
 936             LL_FOREACH(gDoxm->subOwners, subOwnerInst)
 937             {
 938                 if(0 == memcmp(subOwnerInst->uuid.id,
 939                                authenticatedSubOwnerInfo->identity.id,
 940                                authenticatedSubOwnerInfo->identity.id_length))
 941                 {
 942                     break;
 943                 }
 944             }
 945
 946             if(NULL == subOwnerInst)
 947             {
 948                 subOwnerInst = (OicSecSubOwner_t*)OICCalloc(1, sizeof(OicSecSubOwner_t));
 949                 if(subOwnerInst)
 950                 {
 951                     OIC_LOG(DEBUG, TAG, "Adding New SubOwner");
 952                     memcpy(subOwnerInst->uuid.id, authenticatedSubOwnerInfo->identity.id,
 953                            authenticatedSubOwnerInfo->identity.id_length);
 954                     LL_APPEND(gDoxm->subOwners, subOwnerInst);
 955                     if(!UpdatePersistentStorage(gDoxm))
 956                     {
 957                         OIC_LOG(ERROR, TAG, "Failed to register SubOwner UUID into Doxm");
 958                     }
 959                 }
 960             }
 961         }
 962     }
 963
 964     if(CA_STATUS_OK != CAregisterPskCredentialsHandler(GetDtlsPskCredentials))
 965     {
 966         OIC_LOG(WARNING, TAG, "Failed to revert the DTLS credential handler");
 967     }
 968
 969     OIC_LOG(DEBUG, TAG, "OUT MultipleOwnerDTLSHandshakeCB");
 970 }
 971 #endif //_ENABLE_MULTIPLE_OWNER_
 972 #endif // defined(__WITH_DTLS__) || defined (__WITH_TLS__)
 973
 974 static OCEntityHandlerResult HandleDoxmPostRequest(const OCEntityHandlerRequest * ehRequest)
 975 {
 976     OIC_LOG (DEBUG, TAG, "Doxm EntityHandle  processing POST request");
 977     OCEntityHandlerResult ehRet = OC_EH_ERROR;
 978     OicUuid_t emptyOwner = {.id = {0} };
 979     static uint16_t previousMsgId = 0;
 980
 981     /*
 982      * Convert CBOR Doxm data into binary. This will also validate
 983      * the Doxm data received.
 984      */
 985     OicSecDoxm_t *newDoxm = NULL;
 986
 987     if (ehRequest->payload)
 988     {
 989         uint8_t *payload = ((OCSecurityPayload *)ehRequest->payload)->securityData;
 990         size_t size = ((OCSecurityPayload *)ehRequest->payload)->payloadSize;
 991         bool roParsed = false;
 992         OCStackResult res = CBORPayloadToDoxmBin(payload, size, &newDoxm, &roParsed);
 993         if (newDoxm && OC_STACK_OK == res)
 994         {
 995             // Check request on RO property
 996             if (true == roParsed)
 997             {
 998                 OIC_LOG(ERROR, TAG, "Not acceptable request because of read-only propertys");
 999                 ehRet = OC_EH_NOT_ACCEPTABLE;
1000                 goto exit;
1001             }
1002
1003             // in owned state
1004             if (true == gDoxm->owned)
1005             {
1006                 //Update gDoxm based on newDoxm
1007                 updateWriteableProperty(newDoxm, gDoxm);
1008
1009 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1010 #ifdef _ENABLE_MULTIPLE_OWNER_
1011                 //handle mom
1012                 if(gDoxm->mom)
1013                 {
1014                     if(OIC_MULTIPLE_OWNER_DISABLE != gDoxm->mom->mode)
1015                     {
1016                         CAResult_t caRes = CA_STATUS_FAILED;
1017                         if(OIC_PRECONFIG_PIN == gDoxm->oxmSel || OIC_RANDOM_DEVICE_PIN == gDoxm->oxmSel)
1018                         {
1019                             caRes = CAEnableAnonECDHCipherSuite(false);
1020                             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1021                             OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1022
1023                             caRes = CASelectCipherSuite((uint16_t)TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256, ehRequest->devAddr.adapter);
1024                             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1025                             OIC_LOG(INFO, TAG, "ECDHE_PSK CipherSuite will be used for MOT");
1026
1027                             //Set the device id to derive temporal PSK
1028                             SetUuidForPinBasedOxm(&gDoxm->deviceID);
1029                         }
1030                         else
1031                         {
1032                             OIC_LOG(WARNING, TAG, "Unsupported OxM for Multiple Ownership Transfer.");
1033                         }
1034
1035                         CAregisterSslHandshakeCallback(MultipleOwnerDTLSHandshakeCB);
1036                     }
1037                     else
1038                     {
1039                         //if MOM is disabled, revert the DTLS handshake callback
1040                         if(CA_STATUS_OK != CAregisterSslHandshakeCallback(NULL))
1041                         {
1042                             OIC_LOG(WARNING, TAG, "Error while revert the DTLS Handshake Callback.");
1043                         }
1044                     }
1045                 }
1046
1047                 if(newDoxm->subOwners)
1048                 {
1049                     OicSecSubOwner_t* subowner = NULL;
1050                     OicSecSubOwner_t* temp = NULL;
1051
1052                     OIC_LOG(DEBUG, TAG, "dectected 'subowners' property");
1053
1054                     if(gDoxm->subOwners)
1055                     {
1056                         LL_FOREACH_SAFE(gDoxm->subOwners, subowner, temp)
1057                         {
1058                             LL_DELETE(gDoxm->subOwners, subowner);
1059                             OICFree(subowner);
1060                         }
1061                     }
1062
1063                     subowner = NULL;
1064                     temp = NULL;
1065                     LL_FOREACH_SAFE(newDoxm->subOwners, subowner, temp)
1066                     {
1067                         LL_DELETE(newDoxm->subOwners, subowner);
1068                         LL_APPEND(gDoxm->subOwners, subowner);
1069                     }
1070                 }
1071 #endif //_ENABLE_MULTIPLE_OWNER_
1072 #endif // defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1073
1074                 //Update new state in persistent storage
1075                 if (UpdatePersistentStorage(gDoxm) == true)
1076                 {
1077                     ehRet = OC_EH_OK;
1078                 }
1079                 else
1080                 {
1081                     OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1082                     ehRet = OC_EH_ERROR;
1083                 }
1084                 goto exit;
1085             }
1086
1087             // in unowned state
1088             if ((false == gDoxm->owned) && (false == newDoxm->owned))
1089             {
1090                 if (OIC_JUST_WORKS == newDoxm->oxmSel)
1091                 {
1092                     /*
1093                      * If current state of the device is un-owned, enable
1094                      * anonymous ECDH cipher in tinyDTLS so that Provisioning
1095                      * tool can initiate JUST_WORKS ownership transfer process.
1096                      */
1097                     if (memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) == 0)
1098                     {
1099                         OIC_LOG (INFO, TAG, "Doxm EntityHandle  enabling AnonECDHCipherSuite");
1100 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1101                         ehRet = (CAEnableAnonECDHCipherSuite(true) == CA_STATUS_OK) ? OC_EH_OK : OC_EH_ERROR;
1102 #endif // __WITH_DTLS__ or __WITH_TLS__
1103                         goto exit;
1104                     }
1105                     else
1106                     {
1107 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1108                         //Save the owner's UUID to derive owner credential
1109                         memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1110
1111                         // Update new state in persistent storage
1112                         if (true == UpdatePersistentStorage(gDoxm))
1113                         {
1114                             ehRet = OC_EH_OK;
1115                         }
1116                         else
1117                         {
1118                             OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1119                             ehRet = OC_EH_ERROR;
1120                         }
1121
1122                         /*
1123                          * Disable anonymous ECDH cipher in tinyDTLS since device is now
1124                          * in owned state.
1125                          */
1126                         CAResult_t caRes = CA_STATUS_OK;
1127                         caRes = CAEnableAnonECDHCipherSuite(false);
1128                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1129                         OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1130
1131 #endif // __WITH_DTLS__ or __WITH_TLS__
1132                     }
1133                 }
1134                 else if (OIC_RANDOM_DEVICE_PIN == newDoxm->oxmSel)
1135                 {
1136                     /*
1137                      * If current state of the device is un-owned, enable
1138                      * anonymous ECDH cipher in tinyDTLS so that Provisioning
1139                      * tool can initiate JUST_WORKS ownership transfer process.
1140                      */
1141                     if(memcmp(&(newDoxm->owner), &emptyOwner, sizeof(OicUuid_t)) == 0)
1142                     {
1143                         gDoxm->oxmSel = newDoxm->oxmSel;
1144                         //Update new state in persistent storage
1145                         if ((UpdatePersistentStorage(gDoxm) == true))
1146                         {
1147                             ehRet = OC_EH_OK;
1148                         }
1149                         else
1150                         {
1151                             OIC_LOG(WARNING, TAG, "Failed to update DOXM in persistent storage");
1152                             ehRet = OC_EH_ERROR;
1153                         }
1154
1155 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1156                         CAResult_t caRes = CA_STATUS_OK;
1157
1158                         caRes = CAEnableAnonECDHCipherSuite(false);
1159                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1160                         OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1161
1162                         caRes = CASelectCipherSuite(TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256,
1163                                                     ehRequest->devAddr.adapter);
1164                         VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1165
1166                         char ranPin[OXM_RANDOM_PIN_MAX_SIZE + 1] = {0};
1167                          //TODO ehRequest->messageID for copa over TCP always is null. Find reason why.
1168                         if(ehRequest->devAddr.adapter == OC_ADAPTER_IP && previousMsgId != ehRequest->messageID)
1169                         {
1170                             if(OC_STACK_OK == GeneratePin(ranPin, sizeof(ranPin)))
1171                             {
1172                                 //Set the device id to derive temporal PSK
1173                                 SetUuidForPinBasedOxm(&gDoxm->deviceID);
1174
1175                                 /**
1176                                  * Since PSK will be used directly by DTLS layer while PIN based ownership transfer,
1177                                  * Credential should not be saved into SVR.
1178                                  * For this reason, use a temporary get_psk_info callback to random PIN OxM.
1179                                  */
1180                                 caRes = CAregisterPskCredentialsHandler(GetDtlsPskForRandomPinOxm);
1181                                 VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1182                                 ehRet = OC_EH_OK;
1183                             }
1184                             else
1185                             {
1186                                 OIC_LOG(ERROR, TAG, "Failed to generate random PIN");
1187                                 ehRet = OC_EH_ERROR;
1188                             }
1189                         }
1190                         else if(previousMsgId != ehRequest->messageID)
1191                         {
1192                             if(OC_STACK_OK == GeneratePin(ranPin, sizeof(ranPin)))
1193                             {
1194                                 //Set the device id to derive temporal PSK
1195                                 SetUuidForPinBasedOxm(&gDoxm->deviceID);
1196
1197                                 /**
1198                                  * Since PSK will be used directly by DTLS layer while PIN based ownership transfer,
1199                                  * Credential should not be saved into SVR.
1200                                  * For this reason, use a temporary get_psk_info callback to random PIN OxM.
1201                                  */
1202                                 caRes = CAregisterPskCredentialsHandler(GetDtlsPskForRandomPinOxm);
1203                                 VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1204                                 ehRet = OC_EH_OK;
1205                             }
1206                             else
1207                             {
1208                                 OIC_LOG(ERROR, TAG, "Failed to generate random PIN");
1209                                 ehRet = OC_EH_ERROR;
1210                             }
1211
1212                         }
1213 #endif // __WITH_DTLS__ or __WITH_TLS__
1214                     }
1215 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
1216                     else
1217                     {
1218                         //Save the owner's UUID to derive owner credential
1219                         memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1220
1221                         //Update new state in persistent storage
1222                         if (UpdatePersistentStorage(gDoxm) == true)
1223                         {
1224                             ehRet = OC_EH_OK;
1225                         }
1226                         else
1227                         {
1228                             OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1229                             ehRet = OC_EH_ERROR;
1230                         }
1231                     }
1232 #endif // __WITH_DTLS__ or __WITH_TLS__
1233                 }
1234 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1235                 else if (OIC_MANUFACTURER_CERTIFICATE ==  newDoxm->oxmSel)
1236                 {
1237                     //Save the owner's UUID to derive owner credential
1238                     memcpy(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t));
1239                     gDoxm->oxmSel = newDoxm->oxmSel;
1240                     //Update new state in persistent storage
1241                     if (UpdatePersistentStorage(gDoxm))
1242                     {
1243                         ehRet = OC_EH_OK;
1244                     }
1245                     else
1246                     {
1247                         OIC_LOG(WARNING, TAG, "Failed to update DOXM in persistent storage");
1248                         ehRet = OC_EH_ERROR;
1249                     }
1250                     CAResult_t caRes = CAEnableAnonECDHCipherSuite(false);
1251                     VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1252                     OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1253
1254                     VERIFY_SUCCESS(TAG, CA_STATUS_OK == CAregisterPkixInfoHandler(GetManufacturerPkixInfo), ERROR);
1255                     VERIFY_SUCCESS(TAG, CA_STATUS_OK == CAregisterGetCredentialTypesHandler(InitManufacturerCipherSuiteList), ERROR);
1256                 }
1257 #endif // __WITH_DTLS__ or __WITH_TLS__
1258             }
1259
1260             /*
1261              * When current state of the device is un-owned and Provisioning
1262              * Tool is attempting to change the state to 'Owned' with a
1263              * qualified value for the field 'Owner'
1264              */
1265             if ((false == gDoxm->owned) && (true == newDoxm->owned) &&
1266                     (memcmp(&(gDoxm->owner), &(newDoxm->owner), sizeof(OicUuid_t)) == 0))
1267             {
1268                 //Change the SVR's resource owner as owner device.
1269                 OCStackResult ownerRes = SetAclRownerId(&gDoxm->owner);
1270                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1271                 {
1272                     ehRet = OC_EH_ERROR;
1273                     goto exit;
1274                 }
1275                 ownerRes = SetAmaclRownerId(&gDoxm->owner);
1276                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1277                 {
1278                     ehRet = OC_EH_ERROR;
1279                     goto exit;
1280                 }
1281                 ownerRes = SetCredRownerId(&gDoxm->owner);
1282                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1283                 {
1284                     ehRet = OC_EH_ERROR;
1285                     goto exit;
1286                 }
1287                 ownerRes = SetPstatRownerId(&gDoxm->owner);
1288                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1289                 {
1290                     ehRet = OC_EH_ERROR;
1291                     goto exit;
1292                 }
1293                 ownerRes = SetDpairingRownerId(&gDoxm->owner);
1294                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1295                 {
1296                     ehRet = OC_EH_ERROR;
1297                     goto exit;
1298                 }
1299                 ownerRes = SetPconfRownerId(&gDoxm->owner);
1300                 if(OC_STACK_OK != ownerRes && OC_STACK_NO_RESOURCE != ownerRes)
1301                 {
1302                     ehRet = OC_EH_ERROR;
1303                     goto exit;
1304                 }
1305
1306                 gDoxm->owned = true;
1307                 memcpy(&gDoxm->rownerID, &gDoxm->owner, sizeof(OicUuid_t));
1308
1309                 // Update new state in persistent storage
1310                 if (UpdatePersistentStorage(gDoxm))
1311                 {
1312                     //Update default ACE of security resource to prevent anonymous user access.
1313                     if(OC_STACK_OK == UpdateDefaultSecProvACE())
1314                     {
1315                         ehRet = OC_EH_OK;
1316                     }
1317                     else
1318                     {
1319                         OIC_LOG(ERROR, TAG, "Failed to remove default ACL for security provisioning");
1320                         ehRet = OC_EH_ERROR;
1321                     }
1322                 }
1323                 else
1324                 {
1325                     OIC_LOG(ERROR, TAG, "Failed to update DOXM in persistent storage");
1326                     ehRet = OC_EH_ERROR;
1327                 }
1328 #if defined(__WITH_DTLS__) || defined (__WITH_TLS__)
1329                 if (OIC_MANUFACTURER_CERTIFICATE == gDoxm->oxmSel)
1330                 {
1331                     CAregisterPkixInfoHandler(GetPkixInfo);
1332                     CAregisterGetCredentialTypesHandler(InitCipherSuiteList);
1333                 }
1334 #endif // __WITH_DTLS__ or __WITH_TLS__
1335             }
1336         }
1337     }
1338
1339 exit:
1340     if(OC_EH_OK != ehRet)
1341     {
1342
1343         /*
1344          * If some error is occured while ownership transfer,
1345          * ownership transfer related resource should be revert back to initial status.
1346         */
1347         if(gDoxm)
1348         {
1349             if(!gDoxm->owned && previousMsgId != ehRequest->messageID)
1350             {
1351                 OIC_LOG(WARNING, TAG, "The operation failed during handle DOXM request,"\
1352                                     "DOXM will be reverted.");
1353                 RestoreDoxmToInitState();
1354                 RestorePstatToInitState();
1355             }
1356         }
1357         else
1358         {
1359             OIC_LOG(ERROR, TAG, "Invalid DOXM resource.");
1360         }
1361     }
1362     else
1363     {
1364         previousMsgId = ehRequest->messageID;
1365     }
1366
1367     //Send payload to request originator
1368     ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
1369                    OC_EH_OK : OC_EH_ERROR;
1370
1371     DeleteDoxmBinData(newDoxm);
1372
1373     return ehRet;
1374 }
1375
1376 OCEntityHandlerResult DoxmEntityHandler(OCEntityHandlerFlag flag,
1377                                         OCEntityHandlerRequest * ehRequest,
1378                                         void* callbackParam)
1379 {
1380     (void)callbackParam;
1381     OCEntityHandlerResult ehRet = OC_EH_ERROR;
1382
1383     if(NULL == ehRequest)
1384     {
1385         return ehRet;
1386     }
1387
1388     if (flag & OC_REQUEST_FLAG)
1389     {
1390         OIC_LOG(DEBUG, TAG, "Flag includes OC_REQUEST_FLAG");
1391
1392         switch (ehRequest->method)
1393         {
1394             case OC_REST_GET:
1395                 ehRet = HandleDoxmGetRequest(ehRequest);
1396                 break;
1397
1398             case OC_REST_POST:
1399                 ehRet = HandleDoxmPostRequest(ehRequest);
1400                 break;
1401
1402             default:
1403                 ehRet = ((SendSRMResponse(ehRequest, ehRet, NULL, 0)) == OC_STACK_OK) ?
1404                                OC_EH_OK : OC_EH_ERROR;
1405                 break;
1406         }
1407     }
1408
1409     return ehRet;
1410 }
1411
1412 OCStackResult CreateDoxmResource()
1413 {
1414     OCStackResult ret = OCCreateResource(&gDoxmHandle,
1415                                          OIC_RSRC_TYPE_SEC_DOXM,
1416                                          OC_RSRVD_INTERFACE_DEFAULT,
1417                                          OIC_RSRC_DOXM_URI,
1418                                          DoxmEntityHandler,
1419                                          NULL,
1420                                          OC_SECURE |
1421                                          OC_DISCOVERABLE);
1422
1423     if (OC_STACK_OK != ret)
1424     {
1425         OIC_LOG (FATAL, TAG, "Unable to instantiate Doxm resource");
1426         DeInitDoxmResource();
1427     }
1428     return ret;
1429 }
1430
1431 /**
1432  * Checks if DeviceID is generated during provisioning for the new device.
1433  * If DeviceID is NULL then generates the new DeviceID.
1434  * Once DeviceID is assigned to the device it does not change for the lifetime of the device.
1435  */
1436 static OCStackResult CheckDeviceID()
1437 {
1438     OCStackResult ret = OC_STACK_ERROR;
1439     bool validId = false;
1440     for (uint8_t i = 0; i < UUID_LENGTH; i++)
1441     {
1442         if (gDoxm->deviceID.id[i] != 0)
1443         {
1444             validId = true;
1445             break;
1446         }
1447     }
1448
1449     if (!validId)
1450     {
1451         if (OCGenerateUuid(gDoxm->deviceID.id) != RAND_UUID_OK)
1452         {
1453             OIC_LOG(FATAL, TAG, "Generate UUID for Server Instance failed!");
1454             return ret;
1455         }
1456         ret = OC_STACK_OK;
1457
1458         if (!UpdatePersistentStorage(gDoxm))
1459         {
1460             //TODO: After registering PSI handler in all samples, do ret = OC_STACK_OK here.
1461             OIC_LOG(FATAL, TAG, "UpdatePersistentStorage failed!");
1462         }
1463     }
1464     else
1465     {
1466         ret = OC_STACK_OK;
1467     }
1468     return ret;
1469 }
1470
1471 /**
1472  * Get the default value.
1473  *
1474  * @return the default value of doxm, @ref OicSecDoxm_t.
1475  */
1476 static OicSecDoxm_t* GetDoxmDefault()
1477 {
1478     OIC_LOG(DEBUG, TAG, "GetDoxmToDefault");
1479     return &gDefaultDoxm;
1480 }
1481
1482 const OicSecDoxm_t* GetDoxmResourceData()
1483 {
1484     return gDoxm;
1485 }
1486
1487 #if defined(__WITH_DTLS__) && defined(_ENABLE_MULTIPLE_OWNER_)
1488 /**
1489  * Internal API to prepare MOT
1490  */
1491 static void PrepareMOT(const OicSecDoxm_t* doxm)
1492 {
1493     OIC_LOG(INFO, TAG, "IN PrepareMOT");
1494     VERIFY_NON_NULL(TAG, doxm, ERROR);
1495
1496     if(true == doxm->owned && NULL != doxm->mom && OIC_MULTIPLE_OWNER_DISABLE != doxm->mom->mode)
1497     {
1498         CAResult_t caRes = CA_STATUS_FAILED;
1499
1500         OIC_LOG(INFO, TAG, "Multiple Ownership Transfer Enabled!");
1501
1502         if(OIC_PRECONFIG_PIN == doxm->oxmSel)
1503         {
1504             caRes = CAEnableAnonECDHCipherSuite(false);
1505             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1506             OIC_LOG(INFO, TAG, "ECDH_ANON CipherSuite is DISABLED");
1507
1508             caRes = CASelectCipherSuite((uint16_t)TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256, CA_ADAPTER_IP);
1509             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1510 #ifdef __WITH_TLS__
1511             caRes = CASelectCipherSuite((uint16_t)TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256, CA_ADAPTER_TCP);
1512             VERIFY_SUCCESS(TAG, caRes == CA_STATUS_OK, ERROR);
1513 #endif
1514             OIC_LOG(INFO, TAG, "ECDHE_PSK CipherSuite will be used for MOT");
1515
1516             //Set the device id to derive temporal PSK
1517             SetUuidForPinBasedOxm(&doxm->deviceID);
1518         }
1519         else
1520         {
1521             OIC_LOG(ERROR, TAG, "Unsupported OxM for Multiple Ownership Transfer.");
1522             return;
1523         }
1524
1525         CAregisterSslHandshakeCallback(MultipleOwnerDTLSHandshakeCB);
1526     }
1527
1528     OIC_LOG(INFO, TAG, "OUT PrepareMOT");
1529     return;
1530 exit:
1531     OIC_LOG(WARNING, TAG, "Error in PrepareMOT");
1532 }
1533 #endif //defined(__WITH_DTLS__) && defined(_ENABLE_MULTIPLE_OWNER_)
1534
1535 OCStackResult InitDoxmResource()
1536 {
1537     OCStackResult ret = OC_STACK_ERROR;
1538
1539     //Read DOXM resource from PS
1540     uint8_t *data = NULL;
1541     size_t size = 0;
1542     ret = GetSecureVirtualDatabaseFromPS(OIC_JSON_DOXM_NAME, &data, &size);
1543     // If database read failed
1544     if (OC_STACK_OK != ret)
1545     {
1546        OIC_LOG (DEBUG, TAG, "ReadSVDataFromPS failed");
1547     }
1548     if (data)
1549     {
1550        // Read DOXM resource from PS
1551        ret = CBORPayloadToDoxm(data, size, &gDoxm);
1552     }
1553     /*
1554      * If SVR database in persistent storage got corrupted or
1555      * is not available for some reason, a default doxm is created
1556      * which allows user to initiate doxm provisioning again.
1557      */
1558      if ((OC_STACK_OK != ret) || !data || !gDoxm)
1559     {
1560         gDoxm = GetDoxmDefault();
1561     }
1562
1563     //In case of the server is shut down unintentionally, we should initialize the owner
1564     if(false == gDoxm->owned)
1565     {
1566         OicUuid_t emptyUuid = {.id={0}};
1567         memcpy(&gDoxm->owner, &emptyUuid, sizeof(OicUuid_t));
1568     }
1569
1570     ret = CheckDeviceID();
1571     if (ret == OC_STACK_OK)
1572     {
1573         OIC_LOG_V(DEBUG, TAG, "Initial Doxm Owned = %d", gDoxm->owned);
1574         //Instantiate 'oic.sec.doxm'
1575         ret = CreateDoxmResource();
1576     }
1577     else
1578     {
1579         OIC_LOG (ERROR, TAG, "CheckDeviceID failed");
1580     }
1581     OICFree(data);
1582
1583 #if defined(__WITH_DTLS__) && defined(_ENABLE_MULTIPLE_OWNER_)
1584     //if MOT is enabled, MOT should be prepared.
1585     if(gDoxm && gDoxm->owned)
1586     {
1587         PrepareMOT(gDoxm);
1588     }
1589 #endif // defined(__WITH_DTLS__) && defined(_ENABLE_MULTIPLE_OWNER_)
1590
1591     return ret;
1592 }
1593
1594 OCStackResult DeInitDoxmResource()
1595 {
1596     OCStackResult ret = OCDeleteResource(gDoxmHandle);
1597     if (gDoxm  != &gDefaultDoxm)
1598     {
1599         DeleteDoxmBinData(gDoxm);
1600     }
1601     gDoxm = NULL;
1602
1603     if (OC_STACK_OK == ret)
1604     {
1605         return OC_STACK_OK;
1606     }
1607     else
1608     {
1609         return OC_STACK_ERROR;
1610     }
1611 }
1612
1613 OCStackResult GetDoxmDeviceID(OicUuid_t *deviceID)
1614 {
1615     if (deviceID && gDoxm)
1616     {
1617        *deviceID = gDoxm->deviceID;
1618         return OC_STACK_OK;
1619     }
1620     return OC_STACK_ERROR;
1621 }
1622
1623 OCStackResult GetDoxmIsOwned(bool *isOwned)
1624 {
1625     if (isOwned && gDoxm)
1626     {
1627        *isOwned = gDoxm->owned;
1628         return OC_STACK_OK;
1629     }
1630     return OC_STACK_ERROR;
1631 }
1632
1633 OCStackResult SetDoxmDeviceID(const OicUuid_t *deviceID)
1634 {
1635     bool isPT = false;
1636
1637     if(NULL == deviceID)
1638     {
1639         return OC_STACK_INVALID_PARAM;
1640     }
1641     if(NULL == gDoxm)
1642     {
1643         OIC_LOG(ERROR, TAG, "Doxm resource is not initialized.");
1644         return OC_STACK_NO_RESOURCE;
1645     }
1646
1647     //Check the device's OTM state
1648
1649 #ifdef __WITH_DTLS__
1650     //for normal device.
1651     if(true == gDoxm->owned &&
1652        memcmp(gDoxm->deviceID.id, gDoxm->owner.id, sizeof(gDoxm->owner.id)) != 0)
1653     {
1654         OIC_LOG(ERROR, TAG, "This device owned by owner's device.");
1655         OIC_LOG(ERROR, TAG, "Device UUID cannot be changed to guarantee the reliability of the connection.");
1656         return OC_STACK_ERROR;
1657     }
1658 #endif //__WITH_DTLS
1659
1660     //Save the previous UUID
1661     OicUuid_t tempUuid;
1662     memcpy(tempUuid.id, gDoxm->deviceID.id, sizeof(tempUuid.id));
1663
1664     //Change the UUID
1665     memcpy(gDoxm->deviceID.id, deviceID->id, sizeof(deviceID->id));
1666     if(isPT)
1667     {
1668         memcpy(gDoxm->owner.id, deviceID->id, sizeof(deviceID->id));
1669         memcpy(gDoxm->rownerID.id, deviceID->id, sizeof(deviceID->id));
1670     }
1671
1672     //Update PS
1673     if(!UpdatePersistentStorage(gDoxm))
1674     {
1675         //revert UUID in case of update error
1676         memcpy(gDoxm->deviceID.id, tempUuid.id, sizeof(tempUuid.id));
1677         if(isPT)
1678         {
1679             memcpy(gDoxm->owner.id, tempUuid.id, sizeof(tempUuid.id));
1680             memcpy(gDoxm->rownerID.id, tempUuid.id, sizeof(tempUuid.id));
1681         }
1682
1683         OIC_LOG(ERROR, TAG, "Failed to update persistent storage");
1684         return OC_STACK_ERROR;
1685     }
1686     return OC_STACK_OK;
1687 }
1688
1689 OCStackResult GetDoxmDevOwnerId(OicUuid_t *devownerid)
1690 {
1691     OCStackResult retVal = OC_STACK_ERROR;
1692     if (gDoxm)
1693     {
1694         OIC_LOG_V(DEBUG, TAG, "GetDoxmDevOwnerId(): gDoxm owned =  %d.", \
1695             gDoxm->owned);
1696         if (gDoxm->owned)
1697         {
1698             *devownerid = gDoxm->owner;
1699             retVal = OC_STACK_OK;
1700         }
1701     }
1702     return retVal;
1703 }
1704
1705 OCStackResult GetDoxmRownerId(OicUuid_t *rowneruuid)
1706 {
1707     OCStackResult retVal = OC_STACK_ERROR;
1708     if (gDoxm)
1709     {
1710         if( gDoxm->owned )
1711         {
1712             *rowneruuid = gDoxm->rownerID;
1713                     retVal = OC_STACK_OK;
1714         }
1715     }
1716     return retVal;
1717 }
1718
1719 #ifdef _ENABLE_MULTIPLE_OWNER_
1720 /**
1721  * Compare the UUID to SubOwner.
1722  *
1723  * @param[in] uuid device UUID
1724  *
1725  * @return true if context->subjectId exist subowner list, else false.
1726  */
1727 bool IsSubOwner(const OicUuid_t* uuid)
1728 {
1729     bool retVal = false;
1730
1731     if(NULL == uuid)
1732     {
1733         return retVal;
1734     }
1735
1736     if (gDoxm && gDoxm->subOwners)
1737     {
1738         OicSecSubOwner_t* subOwner = NULL;
1739         LL_FOREACH(gDoxm->subOwners, subOwner)
1740         {
1741             if(memcmp(subOwner->uuid.id, uuid->id, sizeof(uuid->id)) == 0)
1742             {
1743                 return true;
1744             }
1745         }
1746     }
1747     return retVal;
1748 }
1749 #endif //_ENABLE_MULTIPLE_OWNER_
1750
1751 /**
1752  * Function to restore doxm resurce to initial status.
1753  * This function will use in case of error while ownership transfer
1754  */
1755 void RestoreDoxmToInitState()
1756 {
1757     if(gDoxm)
1758     {
1759         OIC_LOG(INFO, TAG, "DOXM resource will revert back to initial status.");
1760
1761         OicUuid_t emptyUuid = {.id={0}};
1762         memcpy(&(gDoxm->owner), &emptyUuid, sizeof(OicUuid_t));
1763         gDoxm->owned = false;
1764         gDoxm->oxmSel = OIC_JUST_WORKS;
1765
1766         if(!UpdatePersistentStorage(gDoxm))
1767         {
1768             OIC_LOG(ERROR, TAG, "Failed to revert DOXM in persistent storage");
1769         }
1770     }
1771 }