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