resource/csdk/security/provisioning/src/secureresourceprovider.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2015 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  * *****************************************************************/
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <stdint.h>
  23 #include <unistd.h>
  24
  25 #include "ocprovisioningmanager.h"
  26 #include "secureresourceprovider.h"
  27 #include "logger.h"
  28 #include "oic_malloc.h"
  29 #include "aclresource.h"
  30 #include "pstatresource.h"
  31 #include "srmresourcestrings.h"
  32 #include "credresource.h"
  33 #include "doxmresource.h"
  34 #include "pconfresource.h"
  35 #include "credentialgenerator.h"
  36 #include "cainterface.h"
  37 #include "cJSON.h"
  38 #include "pmtypes.h"
  39 #include "pmutility.h"
  40 #include "provisioningdatabasemanager.h"
  41 #include "base64.h"
  42 #include "utlist.h"
  43 #include "ocpayload.h"
  44
  45 #ifdef __WITH_X509__
  46 #include "crlresource.h"
  47 #endif // WITH_X509__
  48
  49 #define TAG "SRPAPI"
  50
  51 /**
  52  * Macro to verify argument is not equal to NULL.
  53  * eg: VERIFY_NON_NULL(TAG, ptrData, ERROR,OC_STACK_ERROR);
  54  */
  55 #define VERIFY_NON_NULL(tag, arg, logLevel, retValue) { if (NULL == (arg)) \
  56             { OIC_LOG((logLevel), tag, #arg " is NULL"); return retValue; } }
  57
  58 /**
  59  * Macro to verify success of operation.
  60  * eg: VERIFY_SUCCESS(TAG, OC_STACK_OK == foo(), ERROR, OC_STACK_ERROR);
  61  */
  62 #define VERIFY_SUCCESS(tag, op, logLevel, retValue) { if (!(op)) \
  63             {OIC_LOG((logLevel), tag, #op " failed!!"); return retValue;} }
  64
  65 /**
  66  * Structure to carry credential data to callback.
  67  */
  68 typedef struct CredentialData CredentialData_t;
  69 struct CredentialData
  70 {
  71     void *ctx;                                  /**< Pointer to user context.**/
  72     const OCProvisionDev_t *deviceInfo1;        /**< Pointer to OCProvisionDev_t.**/
  73     const OCProvisionDev_t *deviceInfo2;        /**< Pointer to OCProvisionDev_t.**/
  74     OicSecCred_t *credInfo;                     /**< Pointer to OicSecCred_t.**/
  75     OicSecCred_t *credInfoFirst;                /**< Pointer to OicSecCred_t.**/
  76     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
  77     OCProvisionResult_t *resArr;                /**< Result array.**/
  78     int numOfResults;                           /**< Number of results in result array.**/
  79 };
  80
  81 /**
  82  * Structure to carry ACL provision API data to callback.
  83  */
  84 typedef struct ACLData ACLData_t;
  85 struct ACLData
  86 {
  87     void *ctx;                                  /**< Pointer to user context.**/
  88     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
  89     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
  90     OCProvisionResult_t *resArr;                /**< Result array.**/
  91     int numOfResults;                           /**< Number of results in result array.**/
  92 };
  93
  94 // Structure to carry get security resource APIs data to callback.
  95 typedef struct GetSecData GetSecData_t;
  96 struct GetSecData {
  97     void *ctx;
  98     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
  99     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 100     OCProvisionResult_t *resArr;                /**< Result array.**/
 101     int numOfResults;                        /**< Number of results in result array.**/
 102 };
 103
 104 /**
 105  * Structure to carry PCONF provision API data to callback.
 106  */
 107 typedef struct PconfData PconfData_t;
 108 struct PconfData
 109 {
 110     void *ctx;                                  /**< Pointer to user context.**/
 111     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
 112     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 113     OCProvisionResult_t *resArr;                /**< Result array.**/
 114     int numOfResults;                           /**< Number of results in result array.**/
 115 };
 116
 117 // Enum type index for unlink callback.
 118 typedef enum {
 119     IDX_FIRST_DEVICE_RES = 0, // index for resulf of the first device
 120     IDX_SECOND_DEVICE_RES,    // index for result of the second device
 121     IDX_DB_UPDATE_RES         // index for result of updating provisioning database.
 122 } IdxUnlinkRes_t;
 123
 124 // Structure to carry unlink APIs data to callback.
 125 typedef struct UnlinkData UnlinkData_t;
 126 struct UnlinkData {
 127     void *ctx;
 128     OCProvisionDev_t* unlinkDev;             /**< Pointer to OCProvisionDev_t to be unlinked.**/
 129     OCProvisionResult_t* unlinkRes;          /**< Result array.**/
 130     OCProvisionResultCB resultCallback;      /**< Pointer to result callback.**/
 131     int numOfResults;                        /**< Number of results in result array.**/
 132 };
 133
 134 //Example of DELETE cred request -> coaps://0.0.0.0:5684/oic/sec/cred?sub=(BASE64 ENCODED UUID)
 135 const char * SRP_FORM_DELETE_CREDENTIAL = "coaps://[%s]:%d%s?%s=%s";
 136
 137 // Structure to carry remove APIs data to callback.
 138 typedef struct RemoveData RemoveData_t;
 139 struct RemoveData {
 140     void *ctx;
 141     OCProvisionDev_t* revokeTargetDev;      /**< Device which is going to be revoked..**/
 142     OCProvisionDev_t* linkedDevList;        /**< A list of devices which have invalid credential.**/
 143     OCProvisionResult_t* removeRes;         /**< Result array.**/
 144     OCProvisionResultCB resultCallback;     /**< Pointer to result callback.**/
 145     size_t numOfResults;                    /**< Number of results in result array.**/
 146     size_t sizeOfResArray;
 147     bool hasError;
 148 };
 149
 150 /**
 151  * Function prototype
 152  */
 153 static OCStackResult provisionCredentials(const OicSecCred_t *cred,
 154         const OCProvisionDev_t *deviceInfo, CredentialData_t *credData,
 155         OCClientResponseHandler responseHandler);
 156
 157
 158 /**
 159  * Internal function to update result in result array.
 160  */
 161 static void registerResultForCredProvisioning(CredentialData_t *credData,
 162                                               OCStackResult stackresult, int cause)
 163 {
 164
 165    OIC_LOG_V(INFO,TAG,"value of credData->numOfResults is %d",credData->numOfResults);
 166    if(1 == cause)
 167    {
 168        memcpy(credData->resArr[(credData->numOfResults)].deviceId.id,
 169               credData->deviceInfo1->doxm->deviceID.id,UUID_LENGTH);
 170    }
 171    else
 172    {
 173        memcpy(credData->resArr[(credData->numOfResults)].deviceId.id,
 174               credData->deviceInfo2->doxm->deviceID.id,UUID_LENGTH);
 175    }
 176    credData->resArr[(credData->numOfResults)].res = stackresult;
 177    ++(credData->numOfResults);
 178 }
 179
 180 /**
 181  * Callback handler for handling callback of provisioning device 2.
 182  *
 183  * @param[in] ctx             ctx value passed to callback from calling function.
 184  * @param[in] UNUSED          handle to an invocation
 185  * @param[in] clientResponse  Response from queries to remote servers.
 186  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 187  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 188  */
 189 static OCStackApplicationResult provisionCredentialCB2(void *ctx, OCDoHandle UNUSED,
 190                                                        OCClientResponse *clientResponse)
 191 {
 192     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 193     CredentialData_t *credData = (CredentialData_t *) ctx;
 194     (void)UNUSED;
 195
 196     OCProvisionResultCB resultCallback = credData->resultCallback;
 197     OIC_LOG(INFO, TAG, "provisionCredentialCB2 called");
 198     if (clientResponse)
 199     {
 200         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 201         {
 202             registerResultForCredProvisioning(credData, OC_STACK_RESOURCE_CREATED, 2);
 203             OCStackResult res =  PDMLinkDevices(&credData->deviceInfo1->doxm->deviceID,
 204                     &credData->deviceInfo2->doxm->deviceID);
 205             if (OC_STACK_OK != res)
 206             {
 207                 OIC_LOG(ERROR, TAG, "Error occured on PDMLinkDevices");
 208                 return OC_STACK_DELETE_TRANSACTION;
 209             }
 210             OIC_LOG(INFO, TAG, "Link created successfully");
 211
 212             ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 213                                                     credData->resArr,
 214                                                     false);
 215              OICFree(credData->resArr);
 216              OICFree(credData);
 217              return OC_STACK_DELETE_TRANSACTION;
 218         }
 219
 220     }
 221     OIC_LOG(INFO, TAG, "provisionCredentialCB2 received Null clientResponse");
 222     registerResultForCredProvisioning(credData, OC_STACK_ERROR, 2);
 223     ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 224                                             credData->resArr,
 225                                             true);
 226     OICFree(credData->resArr);
 227     OICFree(credData);
 228     return OC_STACK_DELETE_TRANSACTION;
 229 }
 230
 231 /**
 232  * Callback handler for handling callback of provisioning device 1.
 233  *
 234  * @param[in] ctx             ctx value passed to callback from calling function.
 235  * @param[in] UNUSED          handle to an invocation
 236  * @param[in] clientResponse  Response from queries to remote servers.
 237  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 238  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 239  */
 240 static OCStackApplicationResult provisionCredentialCB1(void *ctx, OCDoHandle UNUSED,
 241                                                        OCClientResponse *clientResponse)
 242 {
 243     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 244     (void)UNUSED;
 245     CredentialData_t* credData = (CredentialData_t*) ctx;
 246     OICFree(credData->credInfoFirst);
 247     const OCProvisionDev_t *deviceInfo = credData->deviceInfo2;
 248     OicSecCred_t *credInfo = credData->credInfo;
 249     const OCProvisionResultCB resultCallback = credData->resultCallback;
 250     if (clientResponse)
 251     {
 252         if (OC_STACK_RESOURCE_CREATED == clientResponse->result)
 253         {
 254             // send credentials to second device
 255             registerResultForCredProvisioning(credData, OC_STACK_RESOURCE_CREATED,1);
 256             OCStackResult res = provisionCredentials(credInfo, deviceInfo, credData,
 257                     provisionCredentialCB2);
 258             DeleteCredList(credInfo);
 259             if (OC_STACK_OK != res)
 260             {
 261                 registerResultForCredProvisioning(credData, res,2);
 262                 ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 263                                                         credData->resArr,
 264                                                         true);
 265                 OICFree(credData->resArr);
 266                 OICFree(credData);
 267                 credData = NULL;
 268             }
 269         }
 270         else
 271         {
 272             registerResultForCredProvisioning(credData, OC_STACK_ERROR,1);
 273             ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 274                                                     credData->resArr,
 275                                                     true);
 276             OICFree(credData->resArr);
 277             OICFree(credData);
 278             credData = NULL;
 279         }
 280     }
 281     else
 282     {
 283         OIC_LOG(INFO, TAG, "provisionCredentialCB received Null clientResponse for first device");
 284         registerResultForCredProvisioning(credData, OC_STACK_ERROR,1);
 285        ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 286                                                      credData->resArr,
 287                                                      true);
 288         DeleteCredList(credInfo);
 289         OICFree(credData->resArr);
 290         OICFree(credData);
 291         credData = NULL;
 292     }
 293     return OC_STACK_DELETE_TRANSACTION;
 294 }
 295
 296
 297
 298 /**
 299  * Internal function for handling credential generation and sending credential to resource server.
 300  *
 301  * @param[in] cred Instance of cred resource.
 302  * @param[in] deviceInfo information about device to which credential is to be provisioned.
 303  * @param[in] responseHandler callbak called by OC stack when request API receives response.
 304  * @return  OC_STACK_OK in case of success and other value otherwise.
 305  */
 306 static OCStackResult provisionCredentials(const OicSecCred_t *cred,
 307         const OCProvisionDev_t *deviceInfo, CredentialData_t *credData,
 308         OCClientResponseHandler responseHandler)
 309 {
 310     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 311     if (!secPayload)
 312     {
 313         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 314         return OC_STACK_NO_MEMORY;
 315     }
 316     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 317     int secureFlag = 0;
 318     OCStackResult res = CredToCBORPayload(cred, &secPayload->securityData,
 319                                           &secPayload->payloadSize, secureFlag);
 320     if((OC_STACK_OK != res) && (NULL == secPayload->securityData))
 321     {
 322         OCPayloadDestroy((OCPayload *)secPayload);
 323         OIC_LOG(ERROR, TAG, "Failed to CredToCBORPayload");
 324         return OC_STACK_NO_MEMORY;
 325     }
 326
 327     OIC_LOG(DEBUG, TAG, "Created payload for Cred:");
 328     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 329     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 330     if(!PMGenerateQuery(true,
 331                         deviceInfo->endpoint.addr,
 332                         deviceInfo->securePort,
 333                         deviceInfo->connType,
 334                         query, sizeof(query), OIC_RSRC_CRED_URI))
 335     {
 336         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 337         return OC_STACK_ERROR;
 338     }
 339     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 340
 341     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
 342     cbData.cb = responseHandler;
 343     cbData.context = (void *) credData;
 344     cbData.cd = NULL;
 345
 346     OCDoHandle handle = NULL;
 347     OCMethod method = OC_REST_POST;
 348     OCStackResult ret = OCDoResource(&handle, method, query, 0, (OCPayload*)secPayload,
 349             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 350     OIC_LOG_V(INFO, TAG, "OCDoResource::Credential provisioning returned : %d",ret);
 351     if (ret != OC_STACK_OK)
 352     {
 353         OIC_LOG(ERROR, TAG, "OCStack resource error");
 354         return ret;
 355     }
 356     return OC_STACK_OK;
 357 }
 358
 359 #ifdef __WITH_X509__
 360 /**
 361  * Structure to carry certificate data to callback.
 362  */
 363 typedef struct CertificateData CertData_t;
 364 struct CertificateData
 365 {
 366     void *ctx;                                  /**< Pointer to user context.**/
 367     const OCProvisionDev_t *deviceInfo;        /**< Pointer to OCProvisionDev_t.**/
 368     OicSecCred_t *credInfo;                     /**< Pointer to OicSecCred_t.**/
 369     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 370     OCProvisionResult_t *resArr;                /**< Result array.**/
 371     int numOfResults;                           /**< Number of results in result array.**/
 372 };
 373
 374 /**
 375  * Structure to carry CRL provision API data to callback.
 376  */
 377 typedef struct CRLData CRLData_t;
 378 struct CRLData
 379 {
 380     void *ctx;                                  /**< Pointer to user context.**/
 381     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
 382     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 383     OCProvisionResult_t *resArr;                /**< Result array.**/
 384     int numOfResults;                           /**< Number of results in result array.**/
 385 };
 386
 387 /**
 388  * Internal function to update result in result array.
 389  */
 390 static void registerResultForCertProvisioning(CertData_t *certData,
 391                                               OCStackResult stackresult)
 392 {
 393
 394    OIC_LOG_V(INFO,TAG,"value of credData->numOfResults is %d",certData->numOfResults);
 395    memcpy(certData->resArr[(certData->numOfResults)].deviceId.id,
 396           certData->deviceInfo->doxm->deviceID.id,UUID_LENGTH);
 397    certData->resArr[(certData->numOfResults)].res = stackresult;
 398    ++(certData->numOfResults);
 399 }
 400
 401 /**
 402  * Internal Function to store results in result array during ACL provisioning.
 403  */
 404 static void registerResultForCRLProvisioning(CRLData_t *crlData,
 405                                              OCStackResult stackresult)
 406 {
 407    OIC_LOG_V(INFO, TAG, "Inside registerResultForCRLProvisioning crlData->numOfResults is %d\n",
 408                        crlData->numOfResults);
 409    memcpy(crlData->resArr[(crlData->numOfResults)].deviceId.id,
 410           crlData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 411    crlData->resArr[(crlData->numOfResults)].res = stackresult;
 412    ++(crlData->numOfResults);
 413 }
 414
 415
 416 /**
 417  * Callback handler of SRPProvisionCRL.
 418  *
 419  * @param[in] ctx             ctx value passed to callback from calling function.
 420  * @param[in] UNUSED          handle to an invocation
 421  * @param[in] clientResponse  Response from queries to remote servers.
 422  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 423  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 424  */
 425 static OCStackApplicationResult SRPProvisionCRLCB(void *ctx, OCDoHandle UNUSED,
 426                                                   OCClientResponse *clientResponse)
 427 {
 428     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionCRLCB.");
 429     (void)UNUSED;
 430     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 431     CRLData_t *crlData = (CRLData_t*)ctx;
 432     OCProvisionResultCB resultCallback = crlData->resultCallback;
 433
 434     if (clientResponse)
 435     {
 436         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 437         {
 438             registerResultForCRLProvisioning(crlData, OC_STACK_RESOURCE_CREATED);
 439             ((OCProvisionResultCB)(resultCallback))(crlData->ctx, crlData->numOfResults,
 440                                                     crlData->resArr,
 441                                                     false);
 442              OICFree(crlData->resArr);
 443              OICFree(crlData);
 444              return OC_STACK_DELETE_TRANSACTION;
 445         }
 446     }
 447     registerResultForCRLProvisioning(crlData, OC_STACK_ERROR);
 448     ((OCProvisionResultCB)(resultCallback))(crlData->ctx, crlData->numOfResults,
 449                                             crlData->resArr,
 450                                             true);
 451     OIC_LOG_V(ERROR, TAG, "SRPProvisionCRLCB received Null clientResponse");
 452     OICFree(crlData->resArr);
 453     OICFree(crlData);
 454     return OC_STACK_DELETE_TRANSACTION;
 455 }
 456
 457 OCStackResult SRPProvisionCRL(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 458         OicSecCrl_t *crl, OCProvisionResultCB resultCallback)
 459 {
 460     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 461     VERIFY_NON_NULL(TAG, crl, ERROR,  OC_STACK_INVALID_PARAM);
 462     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 463
 464     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 465     if (!secPayload)
 466     {
 467         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 468         return OC_STACK_NO_MEMORY;
 469     }
 470
 471     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 472     OCStackResult res = CrlToCBORPayload(crl, &secPayload->securityData, &secPayload->payloadSize);
 473     if((OC_STACK_OK != res) && (NULL == secPayload->securityData))
 474     {
 475         OICFree(secPayload);
 476         OIC_LOG(ERROR, TAG, "Failed to BinToCrlJSON");
 477         return OC_STACK_NO_MEMORY;
 478     }
 479     OIC_LOG(DEBUG, TAG, "Created payload for CRL:");
 480     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 481
 482     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 483     if(!PMGenerateQuery(true,
 484                         selectedDeviceInfo->endpoint.addr,
 485                         selectedDeviceInfo->securePort,
 486                         selectedDeviceInfo->connType,
 487                         query, sizeof(query), OIC_RSRC_CRL_URI))
 488     {
 489         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 490         OCPayloadDestroy((OCPayload *)secPayload);
 491         return OC_STACK_ERROR;
 492     }
 493     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 494
 495     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
 496     cbData.cb = &SRPProvisionCRLCB;
 497     CRLData_t *crlData = (CRLData_t *) OICCalloc(1, sizeof(CRLData_t));
 498     if (crlData == NULL)
 499     {
 500         OCPayloadDestroy((OCPayload *)secPayload);
 501         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 502         return OC_STACK_NO_MEMORY;
 503     }
 504
 505     crlData->deviceInfo = selectedDeviceInfo;
 506     crlData->resultCallback = resultCallback;
 507     crlData->numOfResults=0;
 508     crlData->ctx = ctx;
 509
 510     crlData->resArr = (OCProvisionResult_t*)OICCalloc(1, sizeof(OCProvisionResult_t));
 511     if (crlData->resArr == NULL)
 512     {
 513         OCPayloadDestroy((OCPayload *)secPayload);
 514         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 515         return OC_STACK_NO_MEMORY;
 516     }
 517
 518     cbData.context = (void *)crlData;
 519     cbData.cd = NULL;
 520     OCMethod method = OC_REST_POST;
 521     OCDoHandle handle = NULL;
 522     OIC_LOG(DEBUG, TAG, "Sending CRL info to resource server");
 523
 524     OCStackResult ret = OCDoResource(&handle, method, query,
 525             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
 526             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 527
 528     if (ret != OC_STACK_OK)
 529     {
 530         OICFree(crlData->resArr);
 531         OICFree(crlData);
 532     }
 533
 534     return ret;
 535 }
 536
 537 /**
 538  * Internal function for handling credential generation and sending cretificate credential.
 539  *
 540  * @param[in] cred Instance of cred resource.
 541  * @param[in] deviceInfo information about device to which credential is to be provisioned.
 542  * @param[in] responseHandler callbak called by OC stack when request API receives response.
 543  * @return  OC_STACK_OK in case of success and other value otherwise.
 544  */
 545 static OCStackResult provisionCertCred(const OicSecCred_t *cred,
 546         const OCProvisionDev_t *deviceInfo, CertData_t *certData,
 547         OCClientResponseHandler responseHandler)
 548 {
 549     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 550     if(!secPayload)
 551     {
 552         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 553         return OC_STACK_NO_MEMORY;
 554     }
 555     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 556     int secureFlag = 0;
 557     OCStackResult res = CredToCBORPayload(cred, &secPayload->securityData,
 558         &secPayload->payloadSize, secureFlag);
 559
 560     if ((OC_STACK_OK != res) || (NULL == secPayload->securityData))
 561     {
 562         OICFree(secPayload);
 563         OIC_LOG(ERROR, TAG, "Failed to CredToCBORPayload");
 564         return OC_STACK_NO_MEMORY;
 565     }
 566
 567     OIC_LOG(DEBUG, TAG, "Created payload for Cred:");
 568     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 569     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 570     if(!PMGenerateQuery(true,
 571                         deviceInfo->endpoint.addr,
 572                         deviceInfo->securePort,
 573                         deviceInfo->connType,
 574                         query, sizeof(query), OIC_RSRC_CRED_URI))
 575     {
 576         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 577         OCPayloadDestroy((OCPayload *)secPayload);
 578         return OC_STACK_ERROR;
 579     }
 580     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 581
 582     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
 583     cbData.cb = responseHandler;
 584     cbData.context = (void *) certData;
 585     cbData.cd = NULL;
 586
 587     OCDoHandle handle = NULL;
 588     OCMethod method = OC_REST_POST;
 589     OCStackResult ret = OCDoResource(&handle, method, query, 0, (OCPayload*)secPayload,
 590             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 591     OIC_LOG_V(INFO, TAG, "OCDoResource::Certificate provisioning returned : %d",ret);
 592     if (ret != OC_STACK_OK)
 593     {
 594         OIC_LOG(ERROR, TAG, "OCStack resource error");
 595     }
 596
 597     return ret;
 598 }
 599
 600 /**
 601  * Callback handler for handling callback of certificate provisioning device.
 602  *
 603  * @param[in] ctx             ctx value passed to callback from calling function.
 604  * @param[in] UNUSED          handle to an invocation
 605  * @param[in] clientResponse  Response from queries to remote servers.
 606  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 607  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 608  */
 609 static OCStackApplicationResult provisionCertCB(void *ctx, OCDoHandle UNUSED,
 610                                                        OCClientResponse *clientResponse)
 611 {
 612     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 613     CertData_t *certData = (CertData_t *) ctx;
 614     (void)UNUSED;
 615
 616     OCProvisionResultCB resultCallback = certData->resultCallback;
 617     OIC_LOG(INFO, TAG, "provisionCertCred called");
 618     if (clientResponse)
 619     {
 620         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 621         {
 622             registerResultForCertProvisioning(certData, OC_STACK_RESOURCE_CREATED);
 623             ((OCProvisionResultCB)(resultCallback))(certData->ctx, certData->numOfResults,
 624                                                     certData->resArr,
 625                                                     false);
 626              OICFree(certData->resArr);
 627              OICFree(certData);
 628              return OC_STACK_DELETE_TRANSACTION;
 629         }
 630
 631     }
 632     OIC_LOG(INFO, TAG, "provisionCertCredCB received Null clientResponse");
 633     registerResultForCertProvisioning(certData, OC_STACK_ERROR);
 634     ((OCProvisionResultCB)(resultCallback))(certData->ctx, certData->numOfResults,
 635                                             certData->resArr,
 636                                             true);
 637     OICFree(certData->resArr);
 638     OICFree(certData);
 639     return OC_STACK_DELETE_TRANSACTION;
 640 }
 641 #endif // __WITH_X509__
 642
 643 OCStackResult SRPProvisionCredentials(void *ctx, OicSecCredType_t type, size_t keySize,
 644                                       const OCProvisionDev_t *pDev1,
 645                                       const OCProvisionDev_t *pDev2,
 646                                       OCProvisionResultCB resultCallback)
 647 {
 648     VERIFY_NON_NULL(TAG, pDev1, ERROR,  OC_STACK_INVALID_PARAM);
 649     if (SYMMETRIC_PAIR_WISE_KEY == type)
 650     {
 651         VERIFY_NON_NULL(TAG, pDev2, ERROR,  OC_STACK_INVALID_PARAM);
 652     }
 653     if (!resultCallback)
 654     {
 655         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL Callback");
 656         return OC_STACK_INVALID_CALLBACK;
 657     }
 658     if (SYMMETRIC_PAIR_WISE_KEY == type &&
 659         0 == memcmp(&pDev1->doxm->deviceID, &pDev2->doxm->deviceID, sizeof(OicUuid_t)))
 660     {
 661         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : Same device ID");
 662         return OC_STACK_INVALID_PARAM;
 663     }
 664
 665     if (SYMMETRIC_PAIR_WISE_KEY == type &&
 666        !(OWNER_PSK_LENGTH_128 == keySize || OWNER_PSK_LENGTH_256 == keySize))
 667     {
 668         OIC_LOG(INFO, TAG, "Invalid key size");
 669         return OC_STACK_INVALID_PARAM;
 670     }
 671
 672     OIC_LOG(INFO, TAG, "In SRPProvisionCredentials");
 673
 674     if (SYMMETRIC_PAIR_WISE_KEY == type)
 675     {
 676         bool linkExisits = true;
 677         OCStackResult res = PDMIsLinkExists(&pDev1->doxm->deviceID, &pDev2->doxm->deviceID, &linkExisits);
 678
 679         if (res != OC_STACK_OK)
 680         {
 681             OIC_LOG(ERROR, TAG, "Internal error occured");
 682             return res;
 683         }
 684         if (linkExisits)
 685         {
 686             OIC_LOG(ERROR, TAG, "Link already exists");
 687             return OC_STACK_INVALID_PARAM;
 688         }
 689     }
 690
 691     OicUuid_t provTooldeviceID =   {{0,}};
 692     if (OC_STACK_OK != GetDoxmDeviceID(&provTooldeviceID))
 693     {
 694         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 695         return OC_STACK_ERROR;
 696     }
 697     OIC_LOG(INFO, TAG, "retrieved deviceid");
 698     switch (type)
 699     {
 700         case SYMMETRIC_PAIR_WISE_KEY:
 701         {
 702             const OCProvisionDev_t *firstDevice = pDev1;
 703             const OCProvisionDev_t *secondDevice = pDev2;
 704
 705             OicSecCred_t *firstCred = NULL;
 706             OicSecCred_t *secondCred = NULL;
 707             OCStackResult res = PMGeneratePairWiseCredentials(type, keySize, &provTooldeviceID,
 708                     &firstDevice->doxm->deviceID, &secondDevice->doxm->deviceID,
 709                     &firstCred, &secondCred);
 710             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 711             OIC_LOG(INFO, TAG, "Credentials generated successfully");
 712             CredentialData_t *credData =
 713                 (CredentialData_t *) OICCalloc(1, sizeof(CredentialData_t));
 714             if (NULL == credData)
 715             {
 716                 OICFree(firstCred);
 717                 OICFree(secondCred);
 718                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 719                 return OC_STACK_NO_MEMORY;
 720             }
 721             credData->deviceInfo1 = firstDevice;
 722             credData->deviceInfo2 = secondDevice;
 723             credData->credInfo = secondCred;
 724             credData->ctx = ctx;
 725             credData->credInfoFirst = firstCred;
 726             credData->numOfResults = 0;
 727             credData->resultCallback = resultCallback;
 728             // first call to provision creds to device1.
 729             // second call to provision creds to device2.
 730             int noOfRiCalls = 2;
 731             credData->resArr =
 732                 (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
 733             if (NULL == credData->resArr)
 734             {
 735                 OICFree(firstCred);
 736                 OICFree(secondCred);
 737                 OICFree(credData);
 738                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 739                 return OC_STACK_NO_MEMORY;
 740             }
 741             res = provisionCredentials(firstCred, firstDevice, credData, &provisionCredentialCB1);
 742             if (OC_STACK_OK != res)
 743             {
 744                 DeleteCredList(firstCred);
 745                 DeleteCredList(secondCred);
 746                 OICFree(credData->resArr);
 747                 OICFree(credData);
 748             }
 749             OIC_LOG_V(INFO, TAG, "provisionCredentials returned: %d",res);
 750             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 751             return res;
 752         }
 753 #ifdef __WITH_X509__
 754         case SIGNED_ASYMMETRIC_KEY:
 755         {
 756             const OCProvisionDev_t *firstDevice = pDev1;
 757             OicSecCred_t *cred = NULL;
 758             OCStackResult res = PMGenerateCertificateCredentials(&provTooldeviceID,
 759                                                                 &firstDevice->doxm->deviceID,&cred);
 760             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 761             OIC_LOG(INFO, TAG, "Certificate credentials generated successfully");
 762             CertData_t *certData = (CertData_t *) OICCalloc(1, sizeof(CertData_t));
 763             if (NULL == certData)
 764             {
 765                 OICFree(cred);
 766                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 767                 return OC_STACK_NO_MEMORY;
 768             }
 769
 770             certData->deviceInfo = firstDevice;
 771             certData->ctx = ctx;
 772             certData->credInfo = cred;
 773             certData->numOfResults = 0;
 774             certData->resultCallback = resultCallback;
 775
 776             certData->resArr = (OCProvisionResult_t*)OICCalloc(1, sizeof(OCProvisionResult_t));
 777             if (NULL == certData->resArr)
 778             {
 779                 DeleteCredList(cred);
 780                 OICFree(certData);
 781                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 782                 return OC_STACK_NO_MEMORY;
 783             }
 784
 785             res = provisionCertCred(cred, firstDevice, certData, &provisionCertCB);
 786             if (OC_STACK_OK != res)
 787             {
 788                 OICFree(certData->resArr);
 789                 OICFree(certData);
 790             }
 791             DeleteCredList(cred);
 792             OIC_LOG_V(INFO, TAG, "provisionCertCredentials returned: %d",res);
 793
 794             return res;
 795         }
 796 #endif
 797         default:
 798         {
 799             OIC_LOG(ERROR, TAG, "Invalid option.");
 800             return OC_STACK_INVALID_PARAM;
 801         }
 802     }
 803     return OC_STACK_ERROR;
 804 }
 805
 806 /**
 807  * Internal Function to store results in result array during ACL provisioning.
 808  */
 809 static void registerResultForACLProvisioning(ACLData_t *aclData,
 810                                              OCStackResult stackresult)
 811 {
 812    OIC_LOG_V(INFO, TAG, "Inside registerResultForACLProvisioning aclData->numOfResults is %d\n",
 813                        aclData->numOfResults);
 814    memcpy(aclData->resArr[(aclData->numOfResults)].deviceId.id,
 815           aclData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 816    aclData->resArr[(aclData->numOfResults)].res = stackresult;
 817    ++(aclData->numOfResults);
 818 }
 819
 820 /**
 821  * Callback handler of SRPProvisionACL.
 822  *
 823  * @param[in] ctx             ctx value passed to callback from calling function.
 824  * @param[in] UNUSED          handle to an invocation
 825  * @param[in] clientResponse  Response from queries to remote servers.
 826  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 827  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 828  */
 829 static OCStackApplicationResult SRPProvisionACLCB(void *ctx, OCDoHandle UNUSED,
 830                                                   OCClientResponse *clientResponse)
 831 {
 832     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionACLCB.");
 833     (void)UNUSED;
 834     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 835     ACLData_t *aclData = (ACLData_t*)ctx;
 836     OCProvisionResultCB resultCallback = aclData->resultCallback;
 837
 838     if (clientResponse)
 839     {
 840         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 841         {
 842             registerResultForACLProvisioning(aclData, OC_STACK_RESOURCE_CREATED);
 843             ((OCProvisionResultCB)(resultCallback))(aclData->ctx, aclData->numOfResults,
 844                                                     aclData->resArr,
 845                                                     false);
 846              OICFree(aclData->resArr);
 847              OICFree(aclData);
 848              return OC_STACK_DELETE_TRANSACTION;
 849         }
 850     }
 851     registerResultForACLProvisioning(aclData, OC_STACK_ERROR);
 852     ((OCProvisionResultCB)(resultCallback))(aclData->ctx, aclData->numOfResults,
 853                                             aclData->resArr,
 854                                             true);
 855     OIC_LOG_V(ERROR, TAG, "SRPProvisionACLCB received Null clientResponse");
 856     OICFree(aclData->resArr);
 857     OICFree(aclData);
 858     return OC_STACK_DELETE_TRANSACTION;
 859 }
 860
 861 OCStackResult SRPProvisionACL(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 862         OicSecAcl_t *acl, OCProvisionResultCB resultCallback)
 863 {
 864     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 865     VERIFY_NON_NULL(TAG, acl, ERROR,  OC_STACK_INVALID_PARAM);
 866     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 867
 868     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 869     if(!secPayload)
 870     {
 871         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 872         return OC_STACK_NO_MEMORY;
 873     }
 874     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 875     if(OC_STACK_OK != AclToCBORPayload(acl, &secPayload->securityData, &secPayload->payloadSize))
 876     {
 877         OCPayloadDestroy((OCPayload *)secPayload);
 878         OIC_LOG(ERROR, TAG, "Failed to AclToCBORPayload");
 879         return OC_STACK_NO_MEMORY;
 880     }
 881     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 882     if(!PMGenerateQuery(true,
 883                         selectedDeviceInfo->endpoint.addr,
 884                         selectedDeviceInfo->securePort,
 885                         selectedDeviceInfo->connType,
 886                         query, sizeof(query), OIC_RSRC_ACL_URI))
 887     {
 888         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 889         return OC_STACK_ERROR;
 890     }
 891     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 892
 893     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
 894     cbData.cb = &SRPProvisionACLCB;
 895     ACLData_t *aclData = (ACLData_t *) OICCalloc(1, sizeof(ACLData_t));
 896     if (aclData == NULL)
 897     {
 898         OCPayloadDestroy((OCPayload *)secPayload);
 899         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 900         return OC_STACK_NO_MEMORY;
 901     }
 902     aclData->deviceInfo = selectedDeviceInfo;
 903     aclData->resultCallback = resultCallback;
 904     aclData->numOfResults=0;
 905     aclData->ctx = ctx;
 906     // call to provision ACL to device1.
 907     int noOfRiCalls = 1;
 908     aclData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
 909     if (aclData->resArr == NULL)
 910     {
 911         OICFree(aclData);
 912         OCPayloadDestroy((OCPayload *)secPayload);
 913         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 914         return OC_STACK_NO_MEMORY;
 915     }
 916     cbData.context = (void *)aclData;
 917     cbData.cd = NULL;
 918     OCMethod method = OC_REST_POST;
 919     OCDoHandle handle = NULL;
 920     OIC_LOG(DEBUG, TAG, "Sending ACL info to resource server");
 921     OCStackResult ret = OCDoResource(&handle, method, query,
 922             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
 923             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 924     if (ret != OC_STACK_OK)
 925     {
 926         OICFree(aclData->resArr);
 927         OICFree(aclData);
 928     }
 929     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
 930     return OC_STACK_OK;
 931 }
 932
 933 /**
 934  * Internal Function to store results in result array during Direct-Pairing provisioning.
 935  */
 936 static void registerResultForDirectPairingProvisioning(PconfData_t *pconfData,
 937                                              OCStackResult stackresult)
 938 {
 939    OIC_LOG_V(INFO, TAG, "Inside registerResultForDirectPairingProvisioning "
 940            "pconfData->numOfResults is %d\n", pconfData->numOfResults);
 941    memcpy(pconfData->resArr[(pconfData->numOfResults)].deviceId.id,
 942           pconfData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 943    pconfData->resArr[(pconfData->numOfResults)].res = stackresult;
 944    ++(pconfData->numOfResults);
 945 }
 946
 947 /**
 948  * Callback handler of SRPProvisionDirectPairing.
 949  *
 950  * @param[in] ctx             ctx value passed to callback from calling function.
 951  * @param[in] UNUSED          handle to an invocation
 952  * @param[in] clientResponse  Response from queries to remote servers.
 953  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 954  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 955  */
 956 static OCStackApplicationResult SRPProvisionDirectPairingCB(void *ctx, OCDoHandle UNUSED,
 957                                                   OCClientResponse *clientResponse)
 958 {
 959     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionDirectPairingCB.");
 960     (void)UNUSED;
 961     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 962     PconfData_t *pconfData = (PconfData_t*)ctx;
 963     OCProvisionResultCB resultCallback = pconfData->resultCallback;
 964
 965     if (clientResponse)
 966     {
 967         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 968         {
 969             registerResultForDirectPairingProvisioning(pconfData, OC_STACK_OK);
 970             ((OCProvisionResultCB)(resultCallback))(pconfData->ctx, pconfData->numOfResults,
 971                                                     pconfData->resArr,
 972                                                     false);
 973              OICFree(pconfData->resArr);
 974              OICFree(pconfData);
 975              return OC_STACK_DELETE_TRANSACTION;
 976         }
 977     }
 978     registerResultForDirectPairingProvisioning(pconfData, OC_STACK_ERROR);
 979     ((OCProvisionResultCB)(resultCallback))(pconfData->ctx, pconfData->numOfResults,
 980                                             pconfData->resArr,
 981                                             true);
 982     OIC_LOG_V(ERROR, TAG, "SRPProvisionDirectPairingCB received Null clientResponse");
 983     OICFree(pconfData->resArr);
 984     OICFree(pconfData);
 985     return OC_STACK_DELETE_TRANSACTION;
 986 }
 987
 988 OCStackResult SRPProvisionDirectPairing(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 989         OicSecPconf_t *pconf, OCProvisionResultCB resultCallback)
 990 {
 991     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 992     VERIFY_NON_NULL(TAG, pconf, ERROR,  OC_STACK_INVALID_PARAM);
 993     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 994
 995     // check direct-pairing capability
 996     if (true != selectedDeviceInfo->doxm->dpc)
 997     {
 998         OIC_LOG(ERROR, TAG, "Resouce server does not have Direct-Pairing Capability ");
 999         return OC_STACK_UNAUTHORIZED_REQ;
1000     }
1001
1002     OicUuid_t provTooldeviceID =   {.id={0}};
1003     if (OC_STACK_OK != GetDoxmDeviceID(&provTooldeviceID))
1004     {
1005         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
1006         return OC_STACK_ERROR;
1007     }
1008     memcpy(&pconf->rownerID, &provTooldeviceID, sizeof(OicUuid_t));
1009
1010     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1011     if(!secPayload)
1012     {
1013         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1014         return OC_STACK_NO_MEMORY;
1015     }
1016     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1017
1018     if (OC_STACK_OK != PconfToCBORPayload(pconf, &(secPayload->securityData),
1019                 &(secPayload->payloadSize)))
1020     {
1021         OCPayloadDestroy((OCPayload*)secPayload);
1022         OIC_LOG(ERROR, TAG, "Failed to PconfToCborPayload");
1023         return OC_STACK_NO_MEMORY;
1024     }
1025     OIC_LOG(DEBUG, TAG, "Created payload for pconf set");
1026     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1027
1028
1029     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1030     if(!PMGenerateQuery(true,
1031                 selectedDeviceInfo->endpoint.addr,
1032                 selectedDeviceInfo->securePort,
1033                 selectedDeviceInfo->connType,
1034                 query, sizeof(query), OIC_RSRC_PCONF_URI))
1035     {
1036         OIC_LOG(ERROR, TAG, "SRPProvisionDirectPairing : Failed to generate query");
1037         return OC_STACK_ERROR;
1038     }
1039     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1040
1041     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
1042     cbData.cb = &SRPProvisionDirectPairingCB;
1043     PconfData_t *pconfData = (PconfData_t *) OICCalloc(1, sizeof(PconfData_t));
1044     if (NULL == pconfData)
1045     {
1046         OCPayloadDestroy((OCPayload*)secPayload);
1047         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1048         return OC_STACK_NO_MEMORY;
1049     }
1050     pconfData->deviceInfo = selectedDeviceInfo;
1051     pconfData->resultCallback = resultCallback;
1052     pconfData->numOfResults=0;
1053     pconfData->ctx = ctx;
1054     // call to provision PCONF to device1.
1055     int noOfRiCalls = 1;
1056     pconfData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
1057     if (NULL == pconfData->resArr)
1058     {
1059         OICFree(pconfData);
1060         OCPayloadDestroy((OCPayload*)secPayload);
1061         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1062         return OC_STACK_NO_MEMORY;
1063     }
1064     cbData.context = (void *)pconfData;
1065     cbData.cd = NULL;
1066     OCMethod method = OC_REST_POST;
1067     OCDoHandle handle = NULL;
1068     OIC_LOG(DEBUG, TAG, "Sending PCONF info to resource server");
1069     OCStackResult ret = OCDoResource(&handle, method, query,
1070             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
1071             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1072     if (OC_STACK_OK != ret)
1073     {
1074         OICFree(pconfData->resArr);
1075         OICFree(pconfData);
1076     }
1077     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
1078     return OC_STACK_OK;
1079 }
1080
1081 static void DeleteUnlinkData_t(UnlinkData_t *unlinkData)
1082 {
1083     if (unlinkData)
1084     {
1085         OICFree(unlinkData->unlinkDev);
1086         OICFree(unlinkData->unlinkRes);
1087         OICFree(unlinkData);
1088     }
1089 }
1090
1091 static void registerResultForUnlinkDevices(UnlinkData_t *unlinkData, OCStackResult stackresult,
1092                                            IdxUnlinkRes_t idx)
1093 {
1094     if (NULL != unlinkData)
1095     {
1096         OIC_LOG_V(INFO, TAG, "Inside registerResultForUnlinkDevices unlinkData->numOfResults is %d\n",
1097                             unlinkData->numOfResults);
1098         OIC_LOG_V(INFO, TAG, "Stack result :: %d", stackresult);
1099
1100         OicUuid_t *pUuid = &unlinkData->unlinkRes[(unlinkData->numOfResults)].deviceId;
1101
1102         // Set result in the result array according to the position (devNum).
1103         if (idx != IDX_DB_UPDATE_RES)
1104         {
1105             memcpy(pUuid->id, unlinkData->unlinkDev[idx].doxm->deviceID.id, sizeof(pUuid->id));
1106         }
1107         else
1108         {   // When deivce ID is 000... this means it's the result of database update.
1109             memset(pUuid->id, 0, sizeof(pUuid->id));
1110         }
1111         unlinkData->unlinkRes[(unlinkData->numOfResults)].res = stackresult;
1112         ++(unlinkData->numOfResults);
1113         OIC_LOG (INFO, TAG, "Out registerResultForUnlinkDevices");
1114     }
1115 }
1116
1117 static OCStackResult SendDeleteCredentialRequest(void* ctx,
1118                                                  OCClientResponseHandler respHandler,
1119                                                  const OCProvisionDev_t* revokedDev,
1120                                                  const OCProvisionDev_t* destDev)
1121 {
1122     OIC_LOG(DEBUG, TAG, "IN SendDeleteCredentialRequest");
1123
1124     if (NULL == ctx || NULL == respHandler || NULL == revokedDev || NULL == destDev)
1125     {
1126         return OC_STACK_INVALID_PARAM;
1127     }
1128
1129     char *subID = NULL;
1130     OCStackResult ret = ConvertUuidToStr(&revokedDev->doxm->deviceID, &subID);
1131     if(OC_STACK_OK != ret)
1132     {
1133         OIC_LOG(ERROR, TAG, "SendDeleteCredentialRequest : Failed to canonical UUID encoding");
1134         return OC_STACK_ERROR;
1135     }
1136
1137     char reqBuf[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1138     int snRet = 0;
1139                     //coaps://0.0.0.0:5684/oic/sec/cred?subjectid=(Canonical ENCODED UUID)
1140     snRet = snprintf(reqBuf, sizeof(reqBuf), SRP_FORM_DELETE_CREDENTIAL, destDev->endpoint.addr,
1141                      destDev->securePort, OIC_RSRC_CRED_URI, OIC_JSON_SUBJECTID_NAME, subID);
1142     OICFree(subID);
1143     if (snRet < 0)
1144     {
1145         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Error (snprintf) %d\n", snRet);
1146         return OC_STACK_ERROR;
1147     }
1148     else if ((size_t)snRet >= sizeof(reqBuf))
1149     {
1150         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Truncated (snprintf) %d\n", snRet);
1151         return OC_STACK_ERROR;
1152     }
1153
1154     OCCallbackData cbData;
1155     memset(&cbData, 0, sizeof(cbData));
1156     cbData.context = ctx;
1157     cbData.cb = respHandler;
1158     cbData.cd = NULL;
1159     OIC_LOG_V(INFO, TAG, "URI: %s",reqBuf);
1160
1161     OIC_LOG(DEBUG, TAG, "Sending remove credential request to resource server");
1162
1163     ret = OCDoResource(NULL, OC_REST_DELETE, reqBuf,
1164                                      &destDev->endpoint, NULL,
1165                                      CT_ADAPTER_IP, OC_HIGH_QOS, &cbData, NULL, 0);
1166     if (OC_STACK_OK != ret)
1167     {
1168         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Error in OCDoResource %d", ret);
1169     }
1170     OIC_LOG(DEBUG, TAG, "OUT SendDeleteCredentialRequest");
1171
1172     return ret;
1173 }
1174
1175 /**
1176  * Callback handler of unlink second device.
1177  *
1178  * @param[in] ctx             ctx value passed to callback from calling function.
1179  * @param[in] handle          handle to an invocation
1180  * @param[in] clientResponse  Response from queries to remote servers.
1181  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction and
1182  *          OC_STACK_KEEP_TRANSACTION to keep it.
1183  */
1184 static OCStackApplicationResult SRPUnlinkDevice2CB(void *unlinkCtx, OCDoHandle handle,
1185         OCClientResponse *clientResponse)
1186 {
1187     (void) handle;
1188     OIC_LOG(DEBUG, TAG, "IN SRPUnlinkDevice2CB");
1189     VERIFY_NON_NULL(TAG, unlinkCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1190     UnlinkData_t* unlinkData = (UnlinkData_t*)unlinkCtx;
1191
1192     if (clientResponse)
1193     {
1194         OIC_LOG(DEBUG, TAG, "Valid client response for device 2");
1195         registerResultForUnlinkDevices(unlinkData, clientResponse->result, IDX_SECOND_DEVICE_RES);
1196
1197         if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1198         {
1199             OIC_LOG(DEBUG, TAG, "Credential of device2 revoked");
1200         }
1201         else
1202         {
1203             OIC_LOG(ERROR, TAG, "Unable to delete credential information from device 2");
1204             unlinkData->resultCallback(unlinkData->ctx,
1205                                        unlinkData->numOfResults, unlinkData->unlinkRes, true);
1206             goto error;
1207         }
1208     }
1209     else
1210     {
1211         registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1212                                        IDX_SECOND_DEVICE_RES);
1213         unlinkData->resultCallback(unlinkData->ctx,
1214                                    unlinkData->numOfResults, unlinkData->unlinkRes, true);
1215         OIC_LOG(ERROR, TAG, "SRPUnlinkDevice2CB received Null clientResponse");
1216         goto error;
1217     }
1218
1219     //Update provisioning DB when succes case.
1220     if (OC_STACK_OK != PDMUnlinkDevices(&unlinkData->unlinkDev[0].doxm->deviceID,
1221                                        &unlinkData->unlinkDev[1].doxm->deviceID))
1222     {
1223         OIC_LOG(FATAL, TAG, "All requests are successfully done but update provisioning DB FAILED.");
1224         registerResultForUnlinkDevices(unlinkData, OC_STACK_INCONSISTENT_DB, IDX_DB_UPDATE_RES);
1225         unlinkData->resultCallback(unlinkData->ctx,
1226                                    unlinkData->numOfResults, unlinkData->unlinkRes, true);
1227         goto error;
1228     }
1229     unlinkData->resultCallback(unlinkData->ctx, unlinkData->numOfResults, unlinkData->unlinkRes,
1230                                false);
1231
1232 error:
1233     DeleteUnlinkData_t(unlinkData);
1234     OIC_LOG(DEBUG, TAG, "OUT SRPUnlinkDevice2CB");
1235     return OC_STACK_DELETE_TRANSACTION;
1236
1237 }
1238
1239 /**
1240  * Callback handler of unlink first device.
1241  *
1242  * @param[in] ctx             ctx value passed to callback from calling function.
1243  * @param[in] handle          handle to an invocation
1244  * @param[in] clientResponse  Response from queries to remote servers.
1245  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction and
1246  *          OC_STACK_KEEP_TRANSACTION to keep it.
1247  */
1248 static OCStackApplicationResult SRPUnlinkDevice1CB(void *unlinkCtx, OCDoHandle handle,
1249         OCClientResponse *clientResponse)
1250 {
1251     OIC_LOG_V(INFO, TAG, "Inside SRPUnlinkDevice1CB ");
1252     VERIFY_NON_NULL(TAG, unlinkCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1253     UnlinkData_t* unlinkData = (UnlinkData_t*)unlinkCtx;
1254     (void) handle;
1255
1256     if (clientResponse)
1257     {
1258         OIC_LOG(DEBUG, TAG, "Valid client response for device 1");
1259         registerResultForUnlinkDevices(unlinkData, clientResponse->result, IDX_FIRST_DEVICE_RES);
1260
1261         if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1262         {
1263             OIC_LOG(DEBUG, TAG, "Credential of device 1 is revoked");
1264
1265             // Second revocation request to second device.
1266             OCStackResult res = SendDeleteCredentialRequest((void*)unlinkData, &SRPUnlinkDevice2CB,
1267                                                     &unlinkData->unlinkDev[0],
1268                                                     &unlinkData->unlinkDev[1] /*Dest*/);
1269             OIC_LOG_V(DEBUG, TAG, "Credential revocation request device 2, result :: %d",res);
1270             if (OC_STACK_OK != res)
1271             {
1272                  OIC_LOG(ERROR, TAG, "Error while sending revocation request for device 2");
1273                  registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1274                                                 IDX_SECOND_DEVICE_RES);
1275                  unlinkData->resultCallback(unlinkData->ctx,
1276                                             unlinkData->numOfResults, unlinkData->unlinkRes, true);
1277                  goto error;
1278             }
1279             else
1280             {
1281                 OIC_LOG(DEBUG, TAG, "Request for credential revocation successfully sent");
1282                 return OC_STACK_DELETE_TRANSACTION;
1283             }
1284         }
1285         else
1286         {
1287             OIC_LOG(ERROR, TAG, "Unable to delete credential information from device 1");
1288
1289             unlinkData->resultCallback(unlinkData->ctx, unlinkData->numOfResults,
1290                                             unlinkData->unlinkRes, true);
1291             goto error;
1292         }
1293     }
1294     else
1295     {
1296         OIC_LOG(DEBUG, TAG, "Invalid response from server");
1297         registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1298                                        IDX_FIRST_DEVICE_RES );
1299         unlinkData->resultCallback(unlinkData->ctx,
1300                                    unlinkData->numOfResults, unlinkData->unlinkRes,
1301                                    true);
1302         OIC_LOG(ERROR, TAG, "SRPUnlinkDevice1CB received Null clientResponse");
1303     }
1304
1305 error:
1306     OIC_LOG_V(INFO, TAG, "Out SRPUnlinkDevice1CB");
1307     DeleteUnlinkData_t(unlinkData);
1308     return OC_STACK_DELETE_TRANSACTION;
1309 }
1310
1311 /*
1312 * Function to unlink devices.
1313 * This function will remove the credential & relationship between the two devices.
1314 *
1315 * @param[in] ctx Application context would be returned in result callback
1316 * @param[in] pTargetDev1 first device information to be unlinked.
1317 * @param[in] pTargetDev2 second device information to be unlinked.
1318 * @param[in] resultCallback callback provided by API user, callback will be called when
1319 *            device unlink is finished.
1320  * @return  OC_STACK_OK in case of success and other value otherwise.
1321 */
1322 OCStackResult SRPUnlinkDevices(void* ctx,
1323                                const OCProvisionDev_t* pTargetDev1,
1324                                const OCProvisionDev_t* pTargetDev2,
1325                                OCProvisionResultCB resultCallback)
1326 {
1327     OIC_LOG(INFO, TAG, "IN SRPUnlinkDevices");
1328
1329     if (!pTargetDev1 || !pTargetDev2 || !pTargetDev1->doxm || !pTargetDev2->doxm)
1330     {
1331         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL parameters");
1332         return OC_STACK_INVALID_PARAM;
1333     }
1334     if (!resultCallback)
1335     {
1336         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL Callback");
1337         return OC_STACK_INVALID_CALLBACK;
1338     }
1339     if (0 == memcmp(&pTargetDev1->doxm->deviceID, &pTargetDev2->doxm->deviceID, sizeof(OicUuid_t)))
1340     {
1341         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : Same device ID");
1342         return OC_STACK_INVALID_PARAM;
1343     }
1344
1345     OIC_LOG(INFO, TAG, "Unlinking following devices: ");
1346     PMPrintOCProvisionDev(pTargetDev1);
1347     PMPrintOCProvisionDev(pTargetDev2);
1348
1349     // Mark the link status stale
1350     OCStackResult res = PDMSetLinkStale(&pTargetDev1->doxm->deviceID, &pTargetDev2->doxm->deviceID);
1351     if (OC_STACK_OK != res)
1352     {
1353         OIC_LOG(FATAL, TAG, "unable to update DB. Try again.");
1354         return res;
1355     }
1356
1357     UnlinkData_t* unlinkData = (UnlinkData_t*)OICCalloc(1, sizeof(UnlinkData_t));
1358     VERIFY_NON_NULL(TAG, unlinkData, ERROR, OC_STACK_NO_MEMORY);
1359
1360     //Initialize unlink data
1361     unlinkData->ctx = ctx;
1362     unlinkData->unlinkDev = (OCProvisionDev_t*)OICCalloc(2, sizeof(OCProvisionDev_t));
1363     if (NULL == unlinkData->unlinkDev)
1364     {
1365         OIC_LOG(ERROR, TAG, "Memory allocation failed");
1366         res = OC_STACK_NO_MEMORY;
1367         goto error;
1368     }
1369
1370     unlinkData->unlinkRes = (OCProvisionResult_t*)OICCalloc(3, sizeof(OCProvisionResult_t));
1371     if (NULL == unlinkData->unlinkRes)
1372     {
1373         OIC_LOG(ERROR, TAG, "Memory allocation failed");
1374         res = OC_STACK_NO_MEMORY;
1375         goto error;
1376     }
1377
1378     memcpy(&unlinkData->unlinkDev[0], pTargetDev1, sizeof(OCProvisionDev_t));
1379     memcpy(&unlinkData->unlinkDev[1], pTargetDev2, sizeof(OCProvisionDev_t));
1380
1381     unlinkData->numOfResults = 0;
1382     unlinkData->resultCallback = resultCallback;
1383
1384     res = SendDeleteCredentialRequest((void*)unlinkData, &SRPUnlinkDevice1CB,
1385                                        &unlinkData->unlinkDev[1], &unlinkData->unlinkDev[0]);
1386     if (OC_STACK_OK != res)
1387     {
1388         OIC_LOG(ERROR, TAG, "SRPUnlinkDevices : SendDeleteCredentialRequest failed");
1389         goto error;
1390     }
1391
1392     return res;
1393
1394 error:
1395     OIC_LOG(INFO, TAG, "OUT SRPUnlinkDevices");
1396     DeleteUnlinkData_t(unlinkData);
1397     return res;
1398 }
1399
1400 static void DeleteRemoveData_t(RemoveData_t* pRemoveData)
1401 {
1402     if (pRemoveData)
1403     {
1404         OICFree(pRemoveData->revokeTargetDev);
1405         OCDeleteDiscoveredDevices(pRemoveData->linkedDevList);
1406         OICFree(pRemoveData->removeRes);
1407         OICFree(pRemoveData);
1408     }
1409 }
1410
1411 static void registerResultForRemoveDevice(RemoveData_t *removeData, OicUuid_t *pLinkedDevId,
1412                                           OCStackResult stackresult, bool hasError)
1413 {
1414     OIC_LOG_V(INFO, TAG, "Inside registerResultForRemoveDevice removeData->numOfResults is %zu\n",
1415                          removeData->numOfResults + 1);
1416     if (pLinkedDevId)
1417     {
1418         memcpy(removeData->removeRes[(removeData->numOfResults)].deviceId.id,
1419                &pLinkedDevId->id, sizeof(pLinkedDevId->id));
1420     }
1421     else
1422     {
1423         memset(removeData->removeRes[(removeData->numOfResults)].deviceId.id,
1424                0, sizeof(pLinkedDevId->id) );
1425     }
1426     removeData->removeRes[(removeData->numOfResults)].res = stackresult;
1427     removeData->hasError = hasError;
1428     ++(removeData->numOfResults);
1429
1430     // If we get suffcient result from linked devices, we have to call user callback and do free
1431     if (removeData->sizeOfResArray == removeData->numOfResults)
1432     {
1433         if(!removeData->hasError)
1434         {
1435             // Remove device info from prvisioning database
1436             if (OC_STACK_OK != PDMDeleteDevice(&removeData->revokeTargetDev->doxm->deviceID))
1437             {
1438                 OIC_LOG(ERROR, TAG, "ResultForRemoveDevice : Failed to remove device in PDM.");
1439                 removeData->hasError = true;
1440             }
1441         }
1442         removeData->resultCallback(removeData->ctx, removeData->numOfResults, removeData->removeRes,
1443                                    removeData->hasError);
1444         DeleteRemoveData_t(removeData);
1445     }
1446  }
1447
1448 /**
1449  * Callback handler of unlink first device.
1450  *
1451  * @param[in] ctx             ctx value passed to callback from calling function.
1452  * @param[in] handle          handle to an invocation
1453  * @param[in] clientResponse  Response from queries to remote servers.
1454  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1455  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
1456  */
1457 static OCStackApplicationResult SRPRemoveDeviceCB(void *delDevCtx, OCDoHandle handle,
1458         OCClientResponse *clientResponse)
1459 {
1460     //Update the delete credential into delete device context
1461     //Save the deleted status in delDevCtx
1462     (void)handle;
1463     OIC_LOG_V(INFO, TAG, "Inside SRPRemoveDeviceCB.");
1464     VERIFY_NON_NULL(TAG, delDevCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1465     OCStackResult res = OC_STACK_ERROR;
1466
1467     RemoveData_t* removeData = (RemoveData_t*)delDevCtx;
1468
1469     if (clientResponse)
1470     {
1471         OicUuid_t revDevUuid = {.id={0}};
1472         if(UUID_LENGTH == clientResponse->identity.id_length)
1473         {
1474             memcpy(revDevUuid.id, clientResponse->identity.id, sizeof(revDevUuid.id));
1475             if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1476             {
1477                 res = PDMUnlinkDevices(&removeData->revokeTargetDev->doxm->deviceID, &revDevUuid);
1478                 if (OC_STACK_OK != res)
1479                 {
1480                     OIC_LOG(ERROR, TAG, "PDMSetLinkStale() FAIL: PDB is an obsolete one.");
1481                            registerResultForRemoveDevice(removeData, &revDevUuid,
1482                            OC_STACK_INCONSISTENT_DB, true);
1483
1484                     return OC_STACK_DELETE_TRANSACTION;
1485                 }
1486
1487                 registerResultForRemoveDevice(removeData, &revDevUuid,
1488                                               OC_STACK_RESOURCE_DELETED, false);
1489             }
1490             else
1491             {
1492                 registerResultForRemoveDevice(removeData, &revDevUuid,
1493                                               clientResponse->result, true);
1494                 OIC_LOG(ERROR, TAG, "Unexpected result from DELETE credential request!");
1495             }
1496         }
1497         else
1498         {
1499             OIC_LOG_V(WARNING, TAG, "Incorrect length of device UUID was sent from %s:%d",
1500                      clientResponse->devAddr.addr, clientResponse->devAddr.port);
1501
1502             if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1503             {
1504                 /**
1505                   * Since server's credential was deleted,
1506                   * register result as OC_STACK_INCONSISTENT_DB with NULL UUID.
1507                   */
1508                 OIC_LOG_V(ERROR, TAG, "But server's credential was deleted.");
1509                 registerResultForRemoveDevice(removeData, NULL, OC_STACK_INCONSISTENT_DB, true);
1510             }
1511             else
1512             {
1513                 registerResultForRemoveDevice(removeData, NULL, clientResponse->result, true);
1514             }
1515         }
1516     }
1517     else
1518     {
1519         registerResultForRemoveDevice(removeData, NULL, OC_STACK_ERROR, true);
1520         OIC_LOG(ERROR, TAG, "SRPRemoveDevices received Null clientResponse");
1521     }
1522
1523
1524     return OC_STACK_DELETE_TRANSACTION;
1525 }
1526
1527 static OCStackResult GetListofDevToReqDeleteCred(const OCProvisionDev_t* pRevokeTargetDev,
1528                                                  OCProvisionDev_t* pOwnedDevList,
1529                                                  OCUuidList_t* pLinkedUuidList,
1530                                                  OCProvisionDev_t** ppLinkedDevList,
1531                                                  size_t *numOfLinkedDev)
1532 {
1533     // pOwnedDevList could be NULL. It means no alived and owned device now.
1534     if (pRevokeTargetDev == NULL || pLinkedUuidList == NULL ||\
1535         ppLinkedDevList == NULL || numOfLinkedDev == NULL)
1536     {
1537         return OC_STACK_INVALID_PARAM;
1538     }
1539
1540     size_t cnt = 0;
1541     OCUuidList_t *curUuid = NULL, *tmpUuid = NULL;
1542     LL_FOREACH_SAFE(pLinkedUuidList, curUuid, tmpUuid)
1543     {
1544         // Mark the link status stale.
1545         OCStackResult res = PDMSetLinkStale(&curUuid->dev, &pRevokeTargetDev->doxm->deviceID);
1546         if (OC_STACK_OK != res)
1547         {
1548             OIC_LOG(FATAL, TAG, "PDMSetLinkStale() FAIL: PDB is an obsolete one.");
1549             return OC_STACK_INCONSISTENT_DB;
1550         }
1551
1552         if (pOwnedDevList)
1553         {
1554             // If this linked device is alive (power-on), add the deivce to the list.
1555             OCProvisionDev_t *curDev = NULL, *tmpDev = NULL;
1556             LL_FOREACH_SAFE(pOwnedDevList, curDev, tmpDev)
1557             {
1558                 if (memcmp(curDev->doxm->deviceID.id, curUuid->dev.id, sizeof(curUuid->dev.id)) == 0)
1559                 {
1560                     OCProvisionDev_t* targetDev = PMCloneOCProvisionDev(curDev);
1561                     if (NULL == targetDev)
1562                     {
1563                         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Cloning OCProvisionDev_t Failed.");
1564                         return OC_STACK_NO_MEMORY;
1565                     }
1566
1567                     LL_PREPEND(*ppLinkedDevList, targetDev);
1568                     cnt++;
1569                     break;
1570                 }
1571             }
1572         }
1573     }
1574     *numOfLinkedDev = cnt;
1575     return OC_STACK_OK;
1576 }
1577
1578 /*
1579 * Function to device revocation
1580 * This function will remove credential of target device from all devices in subnet.
1581 *
1582 * @param[in] ctx Application context would be returned in result callback
1583 * @param[in] waitTimeForOwnedDeviceDiscovery Maximum wait time for owned device discovery.(seconds)
1584 * @param[in] pTargetDev Device information to be revoked.
1585 * @param[in] resultCallback callback provided by API user, callback will be called when
1586 *            credential revocation is finished.
1587 * @return  OC_STACK_OK in case of success and other value otherwise.
1588 *          If OC_STACK_OK is returned, the caller of this API should wait for callback.
1589 *          OC_STACK_CONTINUE means operation is success but no request is need to be initiated.
1590 */
1591 OCStackResult SRPRemoveDevice(void* ctx, unsigned short waitTimeForOwnedDeviceDiscovery,
1592                              const OCProvisionDev_t* pTargetDev, OCProvisionResultCB resultCallback)
1593 {
1594     OIC_LOG(INFO, TAG, "IN SRPRemoveDevice");
1595
1596     if (!pTargetDev  || 0 == waitTimeForOwnedDeviceDiscovery)
1597     {
1598         OIC_LOG(INFO, TAG, "SRPRemoveDevice : NULL parameters");
1599         return OC_STACK_INVALID_PARAM;
1600     }
1601     if (!resultCallback)
1602     {
1603         OIC_LOG(INFO, TAG, "SRPRemoveDevice : NULL Callback");
1604         return OC_STACK_INVALID_CALLBACK;
1605     }
1606
1607     // Declare variables in here to handle error cases with goto statement.
1608     OCProvisionDev_t* pOwnedDevList = NULL;
1609     OCProvisionDev_t* pLinkedDevList = NULL;
1610     RemoveData_t* removeData = NULL;
1611
1612     //1. Find all devices that has a credential of the revoked device
1613     OCUuidList_t* pLinkedUuidList = NULL;
1614     size_t numOfDevices = 0;
1615     OCStackResult res = OC_STACK_ERROR;
1616     res = PDMGetLinkedDevices(&pTargetDev->doxm->deviceID, &pLinkedUuidList, &numOfDevices);
1617     if (OC_STACK_OK != res)
1618     {
1619         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Failed to get linked devices information");
1620         return res;
1621     }
1622     // if there is no related device, we can skip further process.
1623     if (0 == numOfDevices)
1624     {
1625         OIC_LOG(DEBUG, TAG, "SRPRemoveDevice : No linked device found.");
1626         res = OC_STACK_CONTINUE;
1627         goto error;
1628     }
1629
1630     //2. Find owned device from the network
1631     res = PMDeviceDiscovery(waitTimeForOwnedDeviceDiscovery, true, &pOwnedDevList);
1632     if (OC_STACK_OK != res)
1633     {
1634         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Failed to PMDeviceDiscovery");
1635         goto error;
1636     }
1637
1638     //3. Make a list of devices to send DELETE credential request
1639     //   by comparing owned devices from provisioning database with mutlicast discovery result.
1640     size_t numOfLinkedDev = 0;
1641     res = GetListofDevToReqDeleteCred(pTargetDev, pOwnedDevList, pLinkedUuidList,
1642                                       &pLinkedDevList, &numOfLinkedDev);
1643     if (OC_STACK_OK != res)
1644     {
1645         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : GetListofDevToReqDeleteCred() failed");
1646         goto error;
1647     }
1648     if (0 == numOfLinkedDev) // This case means, there is linked device but it's not alive now.
1649     {                       // So we don't have to send request message.
1650         OIC_LOG(DEBUG, TAG, "SRPRemoveDevice : No alived & linked device found.");
1651         res = OC_STACK_CONTINUE;
1652         goto error;
1653     }
1654
1655     // 4. Prepare RemoveData Context data.
1656     removeData = (RemoveData_t*)OICCalloc(1, sizeof(RemoveData_t));
1657     if (!removeData)
1658     {
1659         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : Failed to memory allocation");
1660         res = OC_STACK_NO_MEMORY;
1661         goto error;
1662     }
1663
1664     removeData->revokeTargetDev = PMCloneOCProvisionDev(pTargetDev);
1665     if (!removeData->revokeTargetDev)
1666     {
1667         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : PMCloneOCProvisionDev Failed");
1668         res = OC_STACK_NO_MEMORY;
1669         goto error;
1670     }
1671
1672     removeData->removeRes =
1673         (OCProvisionResult_t*)OICCalloc(numOfLinkedDev, sizeof(OCProvisionResult_t));
1674     if (!removeData->removeRes)
1675     {
1676         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : Failed to memory allocation");
1677         res = OC_STACK_NO_MEMORY;
1678         goto error;
1679     }
1680
1681     removeData->ctx = ctx;
1682     removeData->linkedDevList = pLinkedDevList;
1683     removeData->resultCallback = resultCallback;
1684     removeData->numOfResults = 0;
1685     removeData->sizeOfResArray = numOfLinkedDev;
1686     removeData->hasError = false;
1687
1688     // 5. Send DELETE credential request to linked devices.
1689     OCProvisionDev_t *curDev = NULL, *tmpDev = NULL;
1690     OCStackResult totalRes = OC_STACK_ERROR;  /* variable for checking request is sent or not */
1691     LL_FOREACH_SAFE(pLinkedDevList, curDev, tmpDev)
1692     {
1693         res = SendDeleteCredentialRequest((void*)removeData, &SRPRemoveDeviceCB,
1694                                            removeData->revokeTargetDev, curDev);
1695         if (OC_STACK_OK != res)
1696         {
1697             OIC_LOG_V(ERROR, TAG, "SRPRemoveDevice : Fail to send the DELETE credential request to\
1698                      %s:%u", curDev->endpoint.addr, curDev->endpoint.port);
1699         }
1700         else
1701         {
1702             totalRes = OC_STACK_OK; // This means at least one request is successfully sent.
1703         }
1704     }
1705
1706     PDMDestoryOicUuidLinkList(pLinkedUuidList); //TODO: Modify API name to have unified convention.
1707     PMDeleteDeviceList(pOwnedDevList);
1708     OIC_LOG(INFO, TAG, "OUT SRPRemoveDevice");
1709
1710     return totalRes; // Caller of this API should wait callback if totalRes == OC_STACK_OK.
1711
1712 error:
1713     PDMDestoryOicUuidLinkList(pLinkedUuidList);
1714     PMDeleteDeviceList(pOwnedDevList);
1715     PMDeleteDeviceList(pLinkedDevList);
1716     if (removeData)
1717     {
1718         OICFree(removeData->revokeTargetDev);
1719         OICFree(removeData->removeRes);
1720         OICFree(removeData);
1721     }
1722     OIC_LOG(INFO, TAG, "OUT ERROR case SRPRemoveDevice");
1723     return res;
1724 }
1725
1726 /**
1727  * Internal Function to store results in result array during GetCredResourceCB.
1728  */
1729 static void registerResultForGetCredResourceCB(GetSecData_t *GetSecData,
1730                                              OCStackResult stackresult)
1731 {
1732    OIC_LOG_V(INFO, TAG, "Inside registerResultForGetCredResourceCB "
1733            "GetSecData->numOfResults is %d\n", GetSecData->numOfResults);
1734    memcpy(GetSecData->resArr[(GetSecData->numOfResults)].deviceId.id,
1735           GetSecData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
1736    GetSecData->resArr[(GetSecData->numOfResults)].res = stackresult;
1737    ++(GetSecData->numOfResults);
1738 }
1739
1740 /**
1741  * Callback handler of SRPGetCredResource.
1742  *
1743  * @param[in] ctx             ctx value passed to callback from calling function.
1744  * @param[in] UNUSED          handle to an invocation
1745  * @param[in] clientResponse  Response from queries to remote servers.
1746  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1747  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
1748  */
1749 static OCStackApplicationResult SRPGetCredResourceCB(void *ctx, OCDoHandle UNUSED,
1750                                                   OCClientResponse *clientResponse)
1751 {
1752     OIC_LOG_V(INFO, TAG, "Inside SRPGetCredResourceCB.");
1753     (void)UNUSED;
1754     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
1755     GetSecData_t *GetSecData = (GetSecData_t*)ctx;
1756     OCProvisionResultCB resultCallback = GetSecData->resultCallback;
1757
1758     if (clientResponse)
1759     {
1760         if(OC_STACK_OK == clientResponse->result)
1761         {
1762             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1763             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1764
1765             OIC_LOG_BUFFER(DEBUG, TAG, payload, size);
1766
1767             registerResultForGetCredResourceCB(GetSecData, OC_STACK_OK);
1768             ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1769                                                     GetSecData->resArr,
1770                                                     false);
1771              OICFree(GetSecData->resArr);
1772              OICFree(GetSecData);
1773
1774             return OC_STACK_DELETE_TRANSACTION;
1775         }
1776     }
1777     registerResultForGetCredResourceCB(GetSecData, OC_STACK_OK);
1778     ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1779                                             GetSecData->resArr,
1780                                             false);
1781     OIC_LOG_V(ERROR, TAG, "SRPGetCredResourceCB received Null clientResponse");
1782     OICFree(GetSecData->resArr);
1783     OICFree(GetSecData);
1784
1785     return OC_STACK_DELETE_TRANSACTION;
1786 }
1787
1788
1789 OCStackResult SRPGetCredResource(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
1790         OCProvisionResultCB resultCallback)
1791 {
1792     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
1793     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
1794
1795     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1796     if(!PMGenerateQuery(true,
1797                         selectedDeviceInfo->endpoint.addr,
1798                         selectedDeviceInfo->securePort,
1799                         selectedDeviceInfo->connType,
1800                         query, sizeof(query), OIC_RSRC_CRED_URI))
1801     {
1802         OIC_LOG(ERROR, TAG, "SRPGetCredResource : Failed to generate query");
1803         return OC_STACK_ERROR;
1804     }
1805     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1806
1807     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
1808     cbData.cb = &SRPGetCredResourceCB;
1809     GetSecData_t* GetSecData = (GetSecData_t*)OICCalloc(1, sizeof(GetSecData_t));
1810     if (NULL == GetSecData)
1811     {
1812         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1813         return OC_STACK_NO_MEMORY;
1814     }
1815     GetSecData->deviceInfo = selectedDeviceInfo;
1816     GetSecData->resultCallback = resultCallback;
1817     GetSecData->numOfResults=0;
1818     GetSecData->ctx = ctx;
1819
1820     int noOfRiCalls = 1;
1821     GetSecData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
1822     if (NULL == GetSecData->resArr)
1823     {
1824         OICFree(GetSecData);
1825         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1826         return OC_STACK_NO_MEMORY;
1827     }
1828     cbData.context = (void *)GetSecData;
1829     cbData.cd = NULL;
1830     OCMethod method = OC_REST_GET;
1831     OCDoHandle handle = NULL;
1832     OIC_LOG(DEBUG, TAG, "Sending Get Cred to  resource server");
1833     OCStackResult ret = OCDoResource(&handle, method, query, NULL, NULL,
1834             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1835     if (OC_STACK_OK != ret)
1836     {
1837         OIC_LOG(ERROR, TAG, "OCStack resource error");
1838         OICFree(GetSecData->resArr);
1839         OICFree(GetSecData);
1840     }
1841     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
1842     OIC_LOG(DEBUG, TAG, "OUT SRPGetCredResource");
1843
1844     return OC_STACK_OK;
1845 }
1846
1847