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 #ifdef HAVE_UNISTD_H
  24 #include <unistd.h>
  25 #endif
  26
  27 #include "ocprovisioningmanager.h"
  28 #include "secureresourceprovider.h"
  29 #include "logger.h"
  30 #include "oic_malloc.h"
  31 #include "aclresource.h"
  32 #include "pstatresource.h"
  33 #include "srmresourcestrings.h"
  34 #include "credresource.h"
  35 #include "doxmresource.h"
  36 #include "pconfresource.h"
  37 #include "credentialgenerator.h"
  38 #include "cainterface.h"
  39 #include "cJSON.h"
  40 #include "pmtypes.h"
  41 #include "pmutility.h"
  42 #include "provisioningdatabasemanager.h"
  43 #include "base64.h"
  44 #include "utlist.h"
  45 #include "ocpayload.h"
  46
  47 #ifdef __WITH_X509__
  48 #include "crlresource.h"
  49 #endif // WITH_X509__
  50
  51 #define TAG "SRPAPI"
  52
  53 /**
  54  * Macro to verify argument is not equal to NULL.
  55  * eg: VERIFY_NON_NULL(TAG, ptrData, ERROR,OC_STACK_ERROR);
  56  */
  57 #define VERIFY_NON_NULL(tag, arg, logLevel, retValue) { if (NULL == (arg)) \
  58             { OIC_LOG((logLevel), tag, #arg " is NULL"); return retValue; } }
  59
  60 /**
  61  * Macro to verify success of operation.
  62  * eg: VERIFY_SUCCESS(TAG, OC_STACK_OK == foo(), ERROR, OC_STACK_ERROR);
  63  */
  64 #define VERIFY_SUCCESS(tag, op, logLevel, retValue) { if (!(op)) \
  65             {OIC_LOG((logLevel), tag, #op " failed!!"); return retValue;} }
  66
  67 /**
  68  * Structure to carry credential data to callback.
  69  */
  70 typedef struct CredentialData CredentialData_t;
  71 struct CredentialData
  72 {
  73     void *ctx;                                  /**< Pointer to user context.**/
  74     const OCProvisionDev_t *deviceInfo1;        /**< Pointer to OCProvisionDev_t.**/
  75     const OCProvisionDev_t *deviceInfo2;        /**< Pointer to OCProvisionDev_t.**/
  76     OicSecCred_t *credInfo;                     /**< Pointer to OicSecCred_t.**/
  77     OicSecCred_t *credInfoFirst;                /**< Pointer to OicSecCred_t.**/
  78     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
  79     OCProvisionResult_t *resArr;                /**< Result array.**/
  80     int numOfResults;                           /**< Number of results in result array.**/
  81 };
  82
  83 /**
  84  * Structure to carry ACL provision API data to callback.
  85  */
  86 typedef struct ACLData ACLData_t;
  87 struct ACLData
  88 {
  89     void *ctx;                                  /**< Pointer to user context.**/
  90     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
  91     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
  92     OCProvisionResult_t *resArr;                /**< Result array.**/
  93     int numOfResults;                           /**< Number of results in result array.**/
  94 };
  95
  96 // Structure to carry get security resource APIs data to callback.
  97 typedef struct GetSecData GetSecData_t;
  98 struct GetSecData {
  99     void *ctx;
 100     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
 101     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 102     OCProvisionResult_t *resArr;                /**< Result array.**/
 103     int numOfResults;                        /**< Number of results in result array.**/
 104 };
 105
 106 /**
 107  * Structure to carry PCONF provision API data to callback.
 108  */
 109 typedef struct PconfData PconfData_t;
 110 struct PconfData
 111 {
 112     void *ctx;                                  /**< Pointer to user context.**/
 113     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
 114     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 115     OCProvisionResult_t *resArr;                /**< Result array.**/
 116     int numOfResults;                           /**< Number of results in result array.**/
 117 };
 118
 119 // Enum type index for unlink callback.
 120 typedef enum {
 121     IDX_FIRST_DEVICE_RES = 0, // index for resulf of the first device
 122     IDX_SECOND_DEVICE_RES,    // index for result of the second device
 123     IDX_DB_UPDATE_RES         // index for result of updating provisioning database.
 124 } IdxUnlinkRes_t;
 125
 126 // Structure to carry unlink APIs data to callback.
 127 typedef struct UnlinkData UnlinkData_t;
 128 struct UnlinkData {
 129     void *ctx;
 130     OCProvisionDev_t* unlinkDev;             /**< Pointer to OCProvisionDev_t to be unlinked.**/
 131     OCProvisionResult_t* unlinkRes;          /**< Result array.**/
 132     OCProvisionResultCB resultCallback;      /**< Pointer to result callback.**/
 133     int numOfResults;                        /**< Number of results in result array.**/
 134 };
 135
 136 //Example of DELETE cred request -> coaps://0.0.0.0:5684/oic/sec/cred?sub=(BASE64 ENCODED UUID)
 137 const char * SRP_FORM_DELETE_CREDENTIAL = "coaps://[%s]:%d%s?%s=%s";
 138
 139 // Structure to carry remove APIs data to callback.
 140 typedef struct RemoveData RemoveData_t;
 141 struct RemoveData {
 142     void *ctx;
 143     OCProvisionDev_t* revokeTargetDev;      /**< Device which is going to be revoked..**/
 144     OCProvisionDev_t* linkedDevList;        /**< A list of devices which have invalid credential.**/
 145     OCProvisionResult_t* removeRes;         /**< Result array.**/
 146     OCProvisionResultCB resultCallback;     /**< Pointer to result callback.**/
 147     size_t numOfResults;                    /**< Number of results in result array.**/
 148     size_t sizeOfResArray;
 149     bool hasError;
 150 };
 151
 152 /**
 153  * Function prototype
 154  */
 155 static OCStackResult provisionCredentials(const OicSecCred_t *cred,
 156         const OCProvisionDev_t *deviceInfo, CredentialData_t *credData,
 157         OCClientResponseHandler responseHandler);
 158
 159
 160 /**
 161  * Internal function to update result in result array.
 162  */
 163 static void registerResultForCredProvisioning(CredentialData_t *credData,
 164                                               OCStackResult stackresult, int cause)
 165 {
 166
 167    OIC_LOG_V(INFO,TAG,"value of credData->numOfResults is %d",credData->numOfResults);
 168    if(1 == cause)
 169    {
 170        memcpy(credData->resArr[(credData->numOfResults)].deviceId.id,
 171               credData->deviceInfo1->doxm->deviceID.id,UUID_LENGTH);
 172    }
 173    else
 174    {
 175        memcpy(credData->resArr[(credData->numOfResults)].deviceId.id,
 176               credData->deviceInfo2->doxm->deviceID.id,UUID_LENGTH);
 177    }
 178    credData->resArr[(credData->numOfResults)].res = stackresult;
 179    ++(credData->numOfResults);
 180 }
 181
 182 /**
 183  * Callback handler for handling callback of provisioning device 2.
 184  *
 185  * @param[in] ctx             ctx value passed to callback from calling function.
 186  * @param[in] UNUSED          handle to an invocation
 187  * @param[in] clientResponse  Response from queries to remote servers.
 188  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 189  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 190  */
 191 static OCStackApplicationResult provisionCredentialCB2(void *ctx, OCDoHandle UNUSED,
 192                                                        OCClientResponse *clientResponse)
 193 {
 194     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 195     CredentialData_t *credData = (CredentialData_t *) ctx;
 196     (void)UNUSED;
 197
 198     OCProvisionResultCB resultCallback = credData->resultCallback;
 199     OIC_LOG(INFO, TAG, "provisionCredentialCB2 called");
 200     if (clientResponse)
 201     {
 202         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 203         {
 204             registerResultForCredProvisioning(credData, OC_STACK_RESOURCE_CREATED, 2);
 205             OCStackResult res =  PDMLinkDevices(&credData->deviceInfo1->doxm->deviceID,
 206                     &credData->deviceInfo2->doxm->deviceID);
 207             if (OC_STACK_OK != res)
 208             {
 209                 OIC_LOG(ERROR, TAG, "Error occured on PDMLinkDevices");
 210                 return OC_STACK_DELETE_TRANSACTION;
 211             }
 212             OIC_LOG(INFO, TAG, "Link created successfully");
 213
 214             ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 215                                                     credData->resArr,
 216                                                     false);
 217              OICFree(credData->resArr);
 218              OICFree(credData);
 219              return OC_STACK_DELETE_TRANSACTION;
 220         }
 221
 222     }
 223     OIC_LOG(INFO, TAG, "provisionCredentialCB2 received Null clientResponse");
 224     registerResultForCredProvisioning(credData, OC_STACK_ERROR, 2);
 225     ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 226                                             credData->resArr,
 227                                             true);
 228     OICFree(credData->resArr);
 229     OICFree(credData);
 230     return OC_STACK_DELETE_TRANSACTION;
 231 }
 232
 233 /**
 234  * Callback handler for handling callback of provisioning device 1.
 235  *
 236  * @param[in] ctx             ctx value passed to callback from calling function.
 237  * @param[in] UNUSED          handle to an invocation
 238  * @param[in] clientResponse  Response from queries to remote servers.
 239  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 240  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 241  */
 242 static OCStackApplicationResult provisionCredentialCB1(void *ctx, OCDoHandle UNUSED,
 243                                                        OCClientResponse *clientResponse)
 244 {
 245     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 246     (void)UNUSED;
 247     CredentialData_t* credData = (CredentialData_t*) ctx;
 248     OICFree(credData->credInfoFirst);
 249     const OCProvisionDev_t *deviceInfo = credData->deviceInfo2;
 250     OicSecCred_t *credInfo = credData->credInfo;
 251     const OCProvisionResultCB resultCallback = credData->resultCallback;
 252     if (clientResponse)
 253     {
 254         if (OC_STACK_RESOURCE_CREATED == clientResponse->result)
 255         {
 256             // send credentials to second device
 257             registerResultForCredProvisioning(credData, OC_STACK_RESOURCE_CREATED,1);
 258             OCStackResult res = provisionCredentials(credInfo, deviceInfo, credData,
 259                     provisionCredentialCB2);
 260             DeleteCredList(credInfo);
 261             if (OC_STACK_OK != res)
 262             {
 263                 registerResultForCredProvisioning(credData, res,2);
 264                 ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 265                                                         credData->resArr,
 266                                                         true);
 267                 OICFree(credData->resArr);
 268                 OICFree(credData);
 269                 credData = NULL;
 270             }
 271         }
 272         else
 273         {
 274             registerResultForCredProvisioning(credData, OC_STACK_ERROR,1);
 275             ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 276                                                     credData->resArr,
 277                                                     true);
 278             OICFree(credData->resArr);
 279             OICFree(credData);
 280             credData = NULL;
 281         }
 282     }
 283     else
 284     {
 285         OIC_LOG(INFO, TAG, "provisionCredentialCB received Null clientResponse for first device");
 286         registerResultForCredProvisioning(credData, OC_STACK_ERROR,1);
 287        ((OCProvisionResultCB)(resultCallback))(credData->ctx, credData->numOfResults,
 288                                                      credData->resArr,
 289                                                      true);
 290         DeleteCredList(credInfo);
 291         OICFree(credData->resArr);
 292         OICFree(credData);
 293         credData = NULL;
 294     }
 295     return OC_STACK_DELETE_TRANSACTION;
 296 }
 297
 298
 299
 300 /**
 301  * Internal function for handling credential generation and sending credential to resource server.
 302  *
 303  * @param[in] cred Instance of cred resource.
 304  * @param[in] deviceInfo information about device to which credential is to be provisioned.
 305  * @param[in] responseHandler callbak called by OC stack when request API receives response.
 306  * @return  OC_STACK_OK in case of success and other value otherwise.
 307  */
 308 static OCStackResult provisionCredentials(const OicSecCred_t *cred,
 309         const OCProvisionDev_t *deviceInfo, CredentialData_t *credData,
 310         OCClientResponseHandler responseHandler)
 311 {
 312     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 313     if (!secPayload)
 314     {
 315         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 316         return OC_STACK_NO_MEMORY;
 317     }
 318     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 319     int secureFlag = 0;
 320     OCStackResult res = CredToCBORPayload(cred, &secPayload->securityData,
 321                                           &secPayload->payloadSize, secureFlag);
 322     if((OC_STACK_OK != res) && (NULL == secPayload->securityData))
 323     {
 324         OCPayloadDestroy((OCPayload *)secPayload);
 325         OIC_LOG(ERROR, TAG, "Failed to CredToCBORPayload");
 326         return OC_STACK_NO_MEMORY;
 327     }
 328
 329     OIC_LOG(DEBUG, TAG, "Created payload for Cred:");
 330     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 331     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 332     if(!PMGenerateQuery(true,
 333                         deviceInfo->endpoint.addr,
 334                         deviceInfo->securePort,
 335                         deviceInfo->connType,
 336                         query, sizeof(query), OIC_RSRC_CRED_URI))
 337     {
 338         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 339         return OC_STACK_ERROR;
 340     }
 341     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 342
 343     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
 344     cbData.cb = responseHandler;
 345     cbData.context = (void *) credData;
 346     cbData.cd = NULL;
 347
 348     OCDoHandle handle = NULL;
 349     OCMethod method = OC_REST_POST;
 350     OCStackResult ret = OCDoResource(&handle, method, query, 0, (OCPayload*)secPayload,
 351             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 352     OIC_LOG_V(INFO, TAG, "OCDoResource::Credential provisioning returned : %d",ret);
 353     if (ret != OC_STACK_OK)
 354     {
 355         OIC_LOG(ERROR, TAG, "OCStack resource error");
 356         return ret;
 357     }
 358     return OC_STACK_OK;
 359 }
 360
 361 #ifdef __WITH_X509__
 362 /**
 363  * Structure to carry certificate data to callback.
 364  */
 365 typedef struct CertificateData CertData_t;
 366 struct CertificateData
 367 {
 368     void *ctx;                                  /**< Pointer to user context.**/
 369     const OCProvisionDev_t *deviceInfo;        /**< Pointer to OCProvisionDev_t.**/
 370     OicSecCred_t *credInfo;                     /**< Pointer to OicSecCred_t.**/
 371     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 372     OCProvisionResult_t *resArr;                /**< Result array.**/
 373     int numOfResults;                           /**< Number of results in result array.**/
 374 };
 375
 376 /**
 377  * Structure to carry CRL provision API data to callback.
 378  */
 379 typedef struct CRLData CRLData_t;
 380 struct CRLData
 381 {
 382     void *ctx;                                  /**< Pointer to user context.**/
 383     const OCProvisionDev_t *deviceInfo;         /**< Pointer to PMDevInfo_t.**/
 384     OCProvisionResultCB resultCallback;         /**< Pointer to result callback.**/
 385     OCProvisionResult_t *resArr;                /**< Result array.**/
 386     int numOfResults;                           /**< Number of results in result array.**/
 387 };
 388
 389 /**
 390  * Internal function to update result in result array.
 391  */
 392 static void registerResultForCertProvisioning(CertData_t *certData,
 393                                               OCStackResult stackresult)
 394 {
 395
 396    OIC_LOG_V(INFO,TAG,"value of credData->numOfResults is %d",certData->numOfResults);
 397    memcpy(certData->resArr[(certData->numOfResults)].deviceId.id,
 398           certData->deviceInfo->doxm->deviceID.id,UUID_LENGTH);
 399    certData->resArr[(certData->numOfResults)].res = stackresult;
 400    ++(certData->numOfResults);
 401 }
 402
 403 /**
 404  * Internal Function to store results in result array during ACL provisioning.
 405  */
 406 static void registerResultForCRLProvisioning(CRLData_t *crlData,
 407                                              OCStackResult stackresult)
 408 {
 409    OIC_LOG_V(INFO, TAG, "Inside registerResultForCRLProvisioning crlData->numOfResults is %d\n",
 410                        crlData->numOfResults);
 411    memcpy(crlData->resArr[(crlData->numOfResults)].deviceId.id,
 412           crlData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 413    crlData->resArr[(crlData->numOfResults)].res = stackresult;
 414    ++(crlData->numOfResults);
 415 }
 416
 417
 418 /**
 419  * Callback handler of SRPProvisionCRL.
 420  *
 421  * @param[in] ctx             ctx value passed to callback from calling function.
 422  * @param[in] UNUSED          handle to an invocation
 423  * @param[in] clientResponse  Response from queries to remote servers.
 424  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 425  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 426  */
 427 static OCStackApplicationResult SRPProvisionCRLCB(void *ctx, OCDoHandle UNUSED,
 428                                                   OCClientResponse *clientResponse)
 429 {
 430     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionCRLCB.");
 431     (void)UNUSED;
 432     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 433     CRLData_t *crlData = (CRLData_t*)ctx;
 434     OCProvisionResultCB resultCallback = crlData->resultCallback;
 435
 436     if (clientResponse)
 437     {
 438         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 439         {
 440             registerResultForCRLProvisioning(crlData, OC_STACK_RESOURCE_CREATED);
 441             ((OCProvisionResultCB)(resultCallback))(crlData->ctx, crlData->numOfResults,
 442                                                     crlData->resArr,
 443                                                     false);
 444              OICFree(crlData->resArr);
 445              OICFree(crlData);
 446              return OC_STACK_DELETE_TRANSACTION;
 447         }
 448     }
 449     registerResultForCRLProvisioning(crlData, OC_STACK_ERROR);
 450     ((OCProvisionResultCB)(resultCallback))(crlData->ctx, crlData->numOfResults,
 451                                             crlData->resArr,
 452                                             true);
 453     OIC_LOG_V(ERROR, TAG, "SRPProvisionCRLCB received Null clientResponse");
 454     OICFree(crlData->resArr);
 455     OICFree(crlData);
 456     return OC_STACK_DELETE_TRANSACTION;
 457 }
 458
 459 OCStackResult SRPProvisionCRL(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 460         OicSecCrl_t *crl, OCProvisionResultCB resultCallback)
 461 {
 462     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 463     VERIFY_NON_NULL(TAG, crl, ERROR,  OC_STACK_INVALID_PARAM);
 464     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 465
 466     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 467     if (!secPayload)
 468     {
 469         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 470         return OC_STACK_NO_MEMORY;
 471     }
 472
 473     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 474     OCStackResult res = CrlToCBORPayload(crl, &secPayload->securityData, &secPayload->payloadSize);
 475     if((OC_STACK_OK != res) && (NULL == secPayload->securityData))
 476     {
 477         OICFree(secPayload);
 478         OIC_LOG(ERROR, TAG, "Failed to BinToCrlJSON");
 479         return OC_STACK_NO_MEMORY;
 480     }
 481     OIC_LOG(DEBUG, TAG, "Created payload for CRL:");
 482     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 483
 484     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 485     if(!PMGenerateQuery(true,
 486                         selectedDeviceInfo->endpoint.addr,
 487                         selectedDeviceInfo->securePort,
 488                         selectedDeviceInfo->connType,
 489                         query, sizeof(query), OIC_RSRC_CRL_URI))
 490     {
 491         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 492         OCPayloadDestroy((OCPayload *)secPayload);
 493         return OC_STACK_ERROR;
 494     }
 495     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 496
 497     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
 498     cbData.cb = &SRPProvisionCRLCB;
 499     CRLData_t *crlData = (CRLData_t *) OICCalloc(1, sizeof(CRLData_t));
 500     if (crlData == NULL)
 501     {
 502         OCPayloadDestroy((OCPayload *)secPayload);
 503         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 504         return OC_STACK_NO_MEMORY;
 505     }
 506
 507     crlData->deviceInfo = selectedDeviceInfo;
 508     crlData->resultCallback = resultCallback;
 509     crlData->numOfResults=0;
 510     crlData->ctx = ctx;
 511
 512     crlData->resArr = (OCProvisionResult_t*)OICCalloc(1, sizeof(OCProvisionResult_t));
 513     if (crlData->resArr == NULL)
 514     {
 515         OCPayloadDestroy((OCPayload *)secPayload);
 516         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 517         return OC_STACK_NO_MEMORY;
 518     }
 519
 520     cbData.context = (void *)crlData;
 521     cbData.cd = NULL;
 522     OCMethod method = OC_REST_POST;
 523     OCDoHandle handle = NULL;
 524     OIC_LOG(DEBUG, TAG, "Sending CRL info to resource server");
 525
 526     OCStackResult ret = OCDoResource(&handle, method, query,
 527             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
 528             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 529
 530     if (ret != OC_STACK_OK)
 531     {
 532         OICFree(crlData->resArr);
 533         OICFree(crlData);
 534     }
 535
 536     return ret;
 537 }
 538
 539 /**
 540  * Internal function for handling credential generation and sending cretificate credential.
 541  *
 542  * @param[in] cred Instance of cred resource.
 543  * @param[in] deviceInfo information about device to which credential is to be provisioned.
 544  * @param[in] responseHandler callbak called by OC stack when request API receives response.
 545  * @return  OC_STACK_OK in case of success and other value otherwise.
 546  */
 547 static OCStackResult provisionCertCred(const OicSecCred_t *cred,
 548         const OCProvisionDev_t *deviceInfo, CertData_t *certData,
 549         OCClientResponseHandler responseHandler)
 550 {
 551     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 552     if(!secPayload)
 553     {
 554         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 555         return OC_STACK_NO_MEMORY;
 556     }
 557     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 558     int secureFlag = 0;
 559     OCStackResult res = CredToCBORPayload(cred, &secPayload->securityData,
 560         &secPayload->payloadSize, secureFlag);
 561
 562     if ((OC_STACK_OK != res) || (NULL == secPayload->securityData))
 563     {
 564         OICFree(secPayload);
 565         OIC_LOG(ERROR, TAG, "Failed to CredToCBORPayload");
 566         return OC_STACK_NO_MEMORY;
 567     }
 568
 569     OIC_LOG(DEBUG, TAG, "Created payload for Cred:");
 570     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
 571     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 572     if(!PMGenerateQuery(true,
 573                         deviceInfo->endpoint.addr,
 574                         deviceInfo->securePort,
 575                         deviceInfo->connType,
 576                         query, sizeof(query), OIC_RSRC_CRED_URI))
 577     {
 578         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 579         OCPayloadDestroy((OCPayload *)secPayload);
 580         return OC_STACK_ERROR;
 581     }
 582     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 583
 584     OCCallbackData cbData = {.context=NULL, .cb=NULL, .cd=NULL};
 585     cbData.cb = responseHandler;
 586     cbData.context = (void *) certData;
 587     cbData.cd = NULL;
 588
 589     OCDoHandle handle = NULL;
 590     OCMethod method = OC_REST_POST;
 591     OCStackResult ret = OCDoResource(&handle, method, query, 0, (OCPayload*)secPayload,
 592             deviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 593     OIC_LOG_V(INFO, TAG, "OCDoResource::Certificate provisioning returned : %d",ret);
 594     if (ret != OC_STACK_OK)
 595     {
 596         OIC_LOG(ERROR, TAG, "OCStack resource error");
 597     }
 598
 599     return ret;
 600 }
 601
 602 /**
 603  * Callback handler for handling callback of certificate provisioning device.
 604  *
 605  * @param[in] ctx             ctx value passed to callback from calling function.
 606  * @param[in] UNUSED          handle to an invocation
 607  * @param[in] clientResponse  Response from queries to remote servers.
 608  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 609  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 610  */
 611 static OCStackApplicationResult provisionCertCB(void *ctx, OCDoHandle UNUSED,
 612                                                        OCClientResponse *clientResponse)
 613 {
 614     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 615     CertData_t *certData = (CertData_t *) ctx;
 616     (void)UNUSED;
 617
 618     OCProvisionResultCB resultCallback = certData->resultCallback;
 619     OIC_LOG(INFO, TAG, "provisionCertCred called");
 620     if (clientResponse)
 621     {
 622         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 623         {
 624             registerResultForCertProvisioning(certData, OC_STACK_RESOURCE_CREATED);
 625             ((OCProvisionResultCB)(resultCallback))(certData->ctx, certData->numOfResults,
 626                                                     certData->resArr,
 627                                                     false);
 628              OICFree(certData->resArr);
 629              OICFree(certData);
 630              return OC_STACK_DELETE_TRANSACTION;
 631         }
 632
 633     }
 634     OIC_LOG(INFO, TAG, "provisionCertCredCB received Null clientResponse");
 635     registerResultForCertProvisioning(certData, OC_STACK_ERROR);
 636     ((OCProvisionResultCB)(resultCallback))(certData->ctx, certData->numOfResults,
 637                                             certData->resArr,
 638                                             true);
 639     OICFree(certData->resArr);
 640     OICFree(certData);
 641     return OC_STACK_DELETE_TRANSACTION;
 642 }
 643 #endif // __WITH_X509__
 644
 645 OCStackResult SRPProvisionCredentials(void *ctx, OicSecCredType_t type, size_t keySize,
 646                                       const OCProvisionDev_t *pDev1,
 647                                       const OCProvisionDev_t *pDev2,
 648                                       OCProvisionResultCB resultCallback)
 649 {
 650     VERIFY_NON_NULL(TAG, pDev1, ERROR,  OC_STACK_INVALID_PARAM);
 651     if (SYMMETRIC_PAIR_WISE_KEY == type)
 652     {
 653         VERIFY_NON_NULL(TAG, pDev2, ERROR,  OC_STACK_INVALID_PARAM);
 654     }
 655     if (!resultCallback)
 656     {
 657         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL Callback");
 658         return OC_STACK_INVALID_CALLBACK;
 659     }
 660     if (SYMMETRIC_PAIR_WISE_KEY == type &&
 661         0 == memcmp(&pDev1->doxm->deviceID, &pDev2->doxm->deviceID, sizeof(OicUuid_t)))
 662     {
 663         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : Same device ID");
 664         return OC_STACK_INVALID_PARAM;
 665     }
 666
 667     if (SYMMETRIC_PAIR_WISE_KEY == type &&
 668        !(OWNER_PSK_LENGTH_128 == keySize || OWNER_PSK_LENGTH_256 == keySize))
 669     {
 670         OIC_LOG(INFO, TAG, "Invalid key size");
 671         return OC_STACK_INVALID_PARAM;
 672     }
 673
 674     OIC_LOG(INFO, TAG, "In SRPProvisionCredentials");
 675
 676     if (SYMMETRIC_PAIR_WISE_KEY == type)
 677     {
 678         bool linkExisits = true;
 679         OCStackResult res = PDMIsLinkExists(&pDev1->doxm->deviceID, &pDev2->doxm->deviceID, &linkExisits);
 680
 681         if (res != OC_STACK_OK)
 682         {
 683             OIC_LOG(ERROR, TAG, "Internal error occured");
 684             return res;
 685         }
 686         if (linkExisits)
 687         {
 688             OIC_LOG(ERROR, TAG, "Link already exists");
 689             return OC_STACK_INVALID_PARAM;
 690         }
 691     }
 692
 693     OicUuid_t provTooldeviceID =   {{0,}};
 694     if (OC_STACK_OK != GetDoxmDeviceID(&provTooldeviceID))
 695     {
 696         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
 697         return OC_STACK_ERROR;
 698     }
 699     OIC_LOG(INFO, TAG, "retrieved deviceid");
 700     switch (type)
 701     {
 702         case SYMMETRIC_PAIR_WISE_KEY:
 703         {
 704             const OCProvisionDev_t *firstDevice = pDev1;
 705             const OCProvisionDev_t *secondDevice = pDev2;
 706
 707             OicSecCred_t *firstCred = NULL;
 708             OicSecCred_t *secondCred = NULL;
 709             OCStackResult res = PMGeneratePairWiseCredentials(type, keySize, &provTooldeviceID,
 710                     &firstDevice->doxm->deviceID, &secondDevice->doxm->deviceID,
 711                     &firstCred, &secondCred);
 712             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 713             OIC_LOG(INFO, TAG, "Credentials generated successfully");
 714             CredentialData_t *credData =
 715                 (CredentialData_t *) OICCalloc(1, sizeof(CredentialData_t));
 716             if (NULL == credData)
 717             {
 718                 OICFree(firstCred);
 719                 OICFree(secondCred);
 720                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 721                 return OC_STACK_NO_MEMORY;
 722             }
 723             credData->deviceInfo1 = firstDevice;
 724             credData->deviceInfo2 = secondDevice;
 725             credData->credInfo = secondCred;
 726             credData->ctx = ctx;
 727             credData->credInfoFirst = firstCred;
 728             credData->numOfResults = 0;
 729             credData->resultCallback = resultCallback;
 730             // first call to provision creds to device1.
 731             // second call to provision creds to device2.
 732             int noOfRiCalls = 2;
 733             credData->resArr =
 734                 (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
 735             if (NULL == credData->resArr)
 736             {
 737                 OICFree(firstCred);
 738                 OICFree(secondCred);
 739                 OICFree(credData);
 740                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 741                 return OC_STACK_NO_MEMORY;
 742             }
 743             res = provisionCredentials(firstCred, firstDevice, credData, &provisionCredentialCB1);
 744             if (OC_STACK_OK != res)
 745             {
 746                 DeleteCredList(firstCred);
 747                 DeleteCredList(secondCred);
 748                 OICFree(credData->resArr);
 749                 OICFree(credData);
 750             }
 751             OIC_LOG_V(INFO, TAG, "provisionCredentials returned: %d",res);
 752             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 753             return res;
 754         }
 755 #ifdef __WITH_X509__
 756         case SIGNED_ASYMMETRIC_KEY:
 757         {
 758             const OCProvisionDev_t *firstDevice = pDev1;
 759             OicSecCred_t *cred = NULL;
 760             OCStackResult res = PMGenerateCertificateCredentials(&provTooldeviceID,
 761                                                                 &firstDevice->doxm->deviceID,&cred);
 762             VERIFY_SUCCESS(TAG, (res==OC_STACK_OK), ERROR, OC_STACK_ERROR);
 763             OIC_LOG(INFO, TAG, "Certificate credentials generated successfully");
 764             CertData_t *certData = (CertData_t *) OICCalloc(1, sizeof(CertData_t));
 765             if (NULL == certData)
 766             {
 767                 OICFree(cred);
 768                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 769                 return OC_STACK_NO_MEMORY;
 770             }
 771
 772             certData->deviceInfo = firstDevice;
 773             certData->ctx = ctx;
 774             certData->credInfo = cred;
 775             certData->numOfResults = 0;
 776             certData->resultCallback = resultCallback;
 777
 778             certData->resArr = (OCProvisionResult_t*)OICCalloc(1, sizeof(OCProvisionResult_t));
 779             if (NULL == certData->resArr)
 780             {
 781                 DeleteCredList(cred);
 782                 OICFree(certData);
 783                 OIC_LOG(ERROR, TAG, "Memory allocation problem");
 784                 return OC_STACK_NO_MEMORY;
 785             }
 786
 787             res = provisionCertCred(cred, firstDevice, certData, &provisionCertCB);
 788             if (OC_STACK_OK != res)
 789             {
 790                 OICFree(certData->resArr);
 791                 OICFree(certData);
 792             }
 793             DeleteCredList(cred);
 794             OIC_LOG_V(INFO, TAG, "provisionCertCredentials returned: %d",res);
 795
 796             return res;
 797         }
 798 #endif
 799         default:
 800         {
 801             OIC_LOG(ERROR, TAG, "Invalid option.");
 802             return OC_STACK_INVALID_PARAM;
 803         }
 804     }
 805     return OC_STACK_ERROR;
 806 }
 807
 808 /**
 809  * Internal Function to store results in result array during ACL provisioning.
 810  */
 811 static void registerResultForACLProvisioning(ACLData_t *aclData,
 812                                              OCStackResult stackresult)
 813 {
 814    OIC_LOG_V(INFO, TAG, "Inside registerResultForACLProvisioning aclData->numOfResults is %d\n",
 815                        aclData->numOfResults);
 816    memcpy(aclData->resArr[(aclData->numOfResults)].deviceId.id,
 817           aclData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 818    aclData->resArr[(aclData->numOfResults)].res = stackresult;
 819    ++(aclData->numOfResults);
 820 }
 821
 822 /**
 823  * Callback handler of SRPProvisionACL.
 824  *
 825  * @param[in] ctx             ctx value passed to callback from calling function.
 826  * @param[in] UNUSED          handle to an invocation
 827  * @param[in] clientResponse  Response from queries to remote servers.
 828  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 829  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 830  */
 831 static OCStackApplicationResult SRPProvisionACLCB(void *ctx, OCDoHandle UNUSED,
 832                                                   OCClientResponse *clientResponse)
 833 {
 834     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionACLCB.");
 835     (void)UNUSED;
 836     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 837     ACLData_t *aclData = (ACLData_t*)ctx;
 838     OCProvisionResultCB resultCallback = aclData->resultCallback;
 839
 840     if (clientResponse)
 841     {
 842         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 843         {
 844             registerResultForACLProvisioning(aclData, OC_STACK_RESOURCE_CREATED);
 845             ((OCProvisionResultCB)(resultCallback))(aclData->ctx, aclData->numOfResults,
 846                                                     aclData->resArr,
 847                                                     false);
 848              OICFree(aclData->resArr);
 849              OICFree(aclData);
 850              return OC_STACK_DELETE_TRANSACTION;
 851         }
 852     }
 853     registerResultForACLProvisioning(aclData, OC_STACK_ERROR);
 854     ((OCProvisionResultCB)(resultCallback))(aclData->ctx, aclData->numOfResults,
 855                                             aclData->resArr,
 856                                             true);
 857     OIC_LOG_V(ERROR, TAG, "SRPProvisionACLCB received Null clientResponse");
 858     OICFree(aclData->resArr);
 859     OICFree(aclData);
 860     return OC_STACK_DELETE_TRANSACTION;
 861 }
 862
 863 OCStackResult SRPProvisionACL(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 864         OicSecAcl_t *acl, OCProvisionResultCB resultCallback)
 865 {
 866     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 867     VERIFY_NON_NULL(TAG, acl, ERROR,  OC_STACK_INVALID_PARAM);
 868     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 869
 870     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
 871     if(!secPayload)
 872     {
 873         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
 874         return OC_STACK_NO_MEMORY;
 875     }
 876     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
 877     if(OC_STACK_OK != AclToCBORPayload(acl, &secPayload->securityData, &secPayload->payloadSize))
 878     {
 879         OCPayloadDestroy((OCPayload *)secPayload);
 880         OIC_LOG(ERROR, TAG, "Failed to AclToCBORPayload");
 881         return OC_STACK_NO_MEMORY;
 882     }
 883     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
 884     if(!PMGenerateQuery(true,
 885                         selectedDeviceInfo->endpoint.addr,
 886                         selectedDeviceInfo->securePort,
 887                         selectedDeviceInfo->connType,
 888                         query, sizeof(query), OIC_RSRC_ACL_URI))
 889     {
 890         OIC_LOG(ERROR, TAG, "DeviceDiscoveryHandler : Failed to generate query");
 891         return OC_STACK_ERROR;
 892     }
 893     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
 894
 895     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
 896     cbData.cb = &SRPProvisionACLCB;
 897     ACLData_t *aclData = (ACLData_t *) OICCalloc(1, sizeof(ACLData_t));
 898     if (aclData == NULL)
 899     {
 900         OCPayloadDestroy((OCPayload *)secPayload);
 901         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 902         return OC_STACK_NO_MEMORY;
 903     }
 904     aclData->deviceInfo = selectedDeviceInfo;
 905     aclData->resultCallback = resultCallback;
 906     aclData->numOfResults=0;
 907     aclData->ctx = ctx;
 908     // call to provision ACL to device1.
 909     int noOfRiCalls = 1;
 910     aclData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
 911     if (aclData->resArr == NULL)
 912     {
 913         OICFree(aclData);
 914         OCPayloadDestroy((OCPayload *)secPayload);
 915         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
 916         return OC_STACK_NO_MEMORY;
 917     }
 918     cbData.context = (void *)aclData;
 919     cbData.cd = NULL;
 920     OCMethod method = OC_REST_POST;
 921     OCDoHandle handle = NULL;
 922     OIC_LOG(DEBUG, TAG, "Sending ACL info to resource server");
 923     OCStackResult ret = OCDoResource(&handle, method, query,
 924             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
 925             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
 926     if (ret != OC_STACK_OK)
 927     {
 928         OICFree(aclData->resArr);
 929         OICFree(aclData);
 930     }
 931     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
 932     return OC_STACK_OK;
 933 }
 934
 935 /**
 936  * Internal Function to store results in result array during Direct-Pairing provisioning.
 937  */
 938 static void registerResultForDirectPairingProvisioning(PconfData_t *pconfData,
 939                                              OCStackResult stackresult)
 940 {
 941    OIC_LOG_V(INFO, TAG, "Inside registerResultForDirectPairingProvisioning "
 942            "pconfData->numOfResults is %d\n", pconfData->numOfResults);
 943    memcpy(pconfData->resArr[(pconfData->numOfResults)].deviceId.id,
 944           pconfData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
 945    pconfData->resArr[(pconfData->numOfResults)].res = stackresult;
 946    ++(pconfData->numOfResults);
 947 }
 948
 949 /**
 950  * Callback handler of SRPProvisionDirectPairing.
 951  *
 952  * @param[in] ctx             ctx value passed to callback from calling function.
 953  * @param[in] UNUSED          handle to an invocation
 954  * @param[in] clientResponse  Response from queries to remote servers.
 955  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
 956  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
 957  */
 958 static OCStackApplicationResult SRPProvisionDirectPairingCB(void *ctx, OCDoHandle UNUSED,
 959                                                   OCClientResponse *clientResponse)
 960 {
 961     OIC_LOG_V(INFO, TAG, "Inside SRPProvisionDirectPairingCB.");
 962     (void)UNUSED;
 963     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
 964     PconfData_t *pconfData = (PconfData_t*)ctx;
 965     OCProvisionResultCB resultCallback = pconfData->resultCallback;
 966
 967     if (clientResponse)
 968     {
 969         if(OC_STACK_RESOURCE_CREATED == clientResponse->result)
 970         {
 971             registerResultForDirectPairingProvisioning(pconfData, OC_STACK_OK);
 972             ((OCProvisionResultCB)(resultCallback))(pconfData->ctx, pconfData->numOfResults,
 973                                                     pconfData->resArr,
 974                                                     false);
 975              OICFree(pconfData->resArr);
 976              OICFree(pconfData);
 977              return OC_STACK_DELETE_TRANSACTION;
 978         }
 979     }
 980     registerResultForDirectPairingProvisioning(pconfData, OC_STACK_ERROR);
 981     ((OCProvisionResultCB)(resultCallback))(pconfData->ctx, pconfData->numOfResults,
 982                                             pconfData->resArr,
 983                                             true);
 984     OIC_LOG_V(ERROR, TAG, "SRPProvisionDirectPairingCB received Null clientResponse");
 985     OICFree(pconfData->resArr);
 986     OICFree(pconfData);
 987     return OC_STACK_DELETE_TRANSACTION;
 988 }
 989
 990 OCStackResult SRPProvisionDirectPairing(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
 991         OicSecPconf_t *pconf, OCProvisionResultCB resultCallback)
 992 {
 993     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
 994     VERIFY_NON_NULL(TAG, pconf, ERROR,  OC_STACK_INVALID_PARAM);
 995     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
 996
 997     // check direct-pairing capability
 998     if (true != selectedDeviceInfo->doxm->dpc)
 999     {
1000         OIC_LOG(ERROR, TAG, "Resouce server does not have Direct-Pairing Capability ");
1001         return OC_STACK_UNAUTHORIZED_REQ;
1002     }
1003
1004     OicUuid_t provTooldeviceID =   {.id={0}};
1005     if (OC_STACK_OK != GetDoxmDeviceID(&provTooldeviceID))
1006     {
1007         OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
1008         return OC_STACK_ERROR;
1009     }
1010     memcpy(&pconf->rownerID, &provTooldeviceID, sizeof(OicUuid_t));
1011
1012     OCSecurityPayload* secPayload = (OCSecurityPayload*)OICCalloc(1, sizeof(OCSecurityPayload));
1013     if(!secPayload)
1014     {
1015         OIC_LOG(ERROR, TAG, "Failed to memory allocation");
1016         return OC_STACK_NO_MEMORY;
1017     }
1018     secPayload->base.type = PAYLOAD_TYPE_SECURITY;
1019
1020     if (OC_STACK_OK != PconfToCBORPayload(pconf, &(secPayload->securityData),
1021                 &(secPayload->payloadSize)))
1022     {
1023         OCPayloadDestroy((OCPayload*)secPayload);
1024         OIC_LOG(ERROR, TAG, "Failed to PconfToCborPayload");
1025         return OC_STACK_NO_MEMORY;
1026     }
1027     OIC_LOG(DEBUG, TAG, "Created payload for pconf set");
1028     OIC_LOG_BUFFER(DEBUG, TAG, secPayload->securityData, secPayload->payloadSize);
1029
1030
1031     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1032     if(!PMGenerateQuery(true,
1033                 selectedDeviceInfo->endpoint.addr,
1034                 selectedDeviceInfo->securePort,
1035                 selectedDeviceInfo->connType,
1036                 query, sizeof(query), OIC_RSRC_PCONF_URI))
1037     {
1038         OIC_LOG(ERROR, TAG, "SRPProvisionDirectPairing : Failed to generate query");
1039         return OC_STACK_ERROR;
1040     }
1041     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1042
1043     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
1044     cbData.cb = &SRPProvisionDirectPairingCB;
1045     PconfData_t *pconfData = (PconfData_t *) OICCalloc(1, sizeof(PconfData_t));
1046     if (NULL == pconfData)
1047     {
1048         OCPayloadDestroy((OCPayload*)secPayload);
1049         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1050         return OC_STACK_NO_MEMORY;
1051     }
1052     pconfData->deviceInfo = selectedDeviceInfo;
1053     pconfData->resultCallback = resultCallback;
1054     pconfData->numOfResults=0;
1055     pconfData->ctx = ctx;
1056     // call to provision PCONF to device1.
1057     int noOfRiCalls = 1;
1058     pconfData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
1059     if (NULL == pconfData->resArr)
1060     {
1061         OICFree(pconfData);
1062         OCPayloadDestroy((OCPayload*)secPayload);
1063         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1064         return OC_STACK_NO_MEMORY;
1065     }
1066     cbData.context = (void *)pconfData;
1067     cbData.cd = NULL;
1068     OCMethod method = OC_REST_POST;
1069     OCDoHandle handle = NULL;
1070     OIC_LOG(DEBUG, TAG, "Sending PCONF info to resource server");
1071     OCStackResult ret = OCDoResource(&handle, method, query,
1072             &selectedDeviceInfo->endpoint, (OCPayload*)secPayload,
1073             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1074     if (OC_STACK_OK != ret)
1075     {
1076         OICFree(pconfData->resArr);
1077         OICFree(pconfData);
1078     }
1079     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
1080     return OC_STACK_OK;
1081 }
1082
1083 static void DeleteUnlinkData_t(UnlinkData_t *unlinkData)
1084 {
1085     if (unlinkData)
1086     {
1087         OICFree(unlinkData->unlinkDev);
1088         OICFree(unlinkData->unlinkRes);
1089         OICFree(unlinkData);
1090     }
1091 }
1092
1093 static void registerResultForUnlinkDevices(UnlinkData_t *unlinkData, OCStackResult stackresult,
1094                                            IdxUnlinkRes_t idx)
1095 {
1096     if (NULL != unlinkData)
1097     {
1098         OIC_LOG_V(INFO, TAG, "Inside registerResultForUnlinkDevices unlinkData->numOfResults is %d\n",
1099                             unlinkData->numOfResults);
1100         OIC_LOG_V(INFO, TAG, "Stack result :: %d", stackresult);
1101
1102         OicUuid_t *pUuid = &unlinkData->unlinkRes[(unlinkData->numOfResults)].deviceId;
1103
1104         // Set result in the result array according to the position (devNum).
1105         if (idx != IDX_DB_UPDATE_RES)
1106         {
1107             memcpy(pUuid->id, unlinkData->unlinkDev[idx].doxm->deviceID.id, sizeof(pUuid->id));
1108         }
1109         else
1110         {   // When deivce ID is 000... this means it's the result of database update.
1111             memset(pUuid->id, 0, sizeof(pUuid->id));
1112         }
1113         unlinkData->unlinkRes[(unlinkData->numOfResults)].res = stackresult;
1114         ++(unlinkData->numOfResults);
1115         OIC_LOG (INFO, TAG, "Out registerResultForUnlinkDevices");
1116     }
1117 }
1118
1119 static OCStackResult SendDeleteCredentialRequest(void* ctx,
1120                                                  OCClientResponseHandler respHandler,
1121                                                  const OCProvisionDev_t* revokedDev,
1122                                                  const OCProvisionDev_t* destDev)
1123 {
1124     OIC_LOG(DEBUG, TAG, "IN SendDeleteCredentialRequest");
1125
1126     if (NULL == ctx || NULL == respHandler || NULL == revokedDev || NULL == destDev)
1127     {
1128         return OC_STACK_INVALID_PARAM;
1129     }
1130
1131     char *subID = NULL;
1132     OCStackResult ret = ConvertUuidToStr(&revokedDev->doxm->deviceID, &subID);
1133     if(OC_STACK_OK != ret)
1134     {
1135         OIC_LOG(ERROR, TAG, "SendDeleteCredentialRequest : Failed to canonical UUID encoding");
1136         return OC_STACK_ERROR;
1137     }
1138
1139     char reqBuf[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1140     int snRet = 0;
1141                     //coaps://0.0.0.0:5684/oic/sec/cred?subjectid=(Canonical ENCODED UUID)
1142     snRet = snprintf(reqBuf, sizeof(reqBuf), SRP_FORM_DELETE_CREDENTIAL, destDev->endpoint.addr,
1143                      destDev->securePort, OIC_RSRC_CRED_URI, OIC_JSON_SUBJECTID_NAME, subID);
1144     OICFree(subID);
1145     if (snRet < 0)
1146     {
1147         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Error (snprintf) %d\n", snRet);
1148         return OC_STACK_ERROR;
1149     }
1150     else if ((size_t)snRet >= sizeof(reqBuf))
1151     {
1152         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Truncated (snprintf) %d\n", snRet);
1153         return OC_STACK_ERROR;
1154     }
1155
1156     OCCallbackData cbData;
1157     memset(&cbData, 0, sizeof(cbData));
1158     cbData.context = ctx;
1159     cbData.cb = respHandler;
1160     cbData.cd = NULL;
1161     OIC_LOG_V(INFO, TAG, "URI: %s",reqBuf);
1162
1163     OIC_LOG(DEBUG, TAG, "Sending remove credential request to resource server");
1164
1165     ret = OCDoResource(NULL, OC_REST_DELETE, reqBuf,
1166                                      &destDev->endpoint, NULL,
1167                                      CT_ADAPTER_IP, OC_HIGH_QOS, &cbData, NULL, 0);
1168     if (OC_STACK_OK != ret)
1169     {
1170         OIC_LOG_V(ERROR, TAG, "SendDeleteCredentialRequest : Error in OCDoResource %d", ret);
1171     }
1172     OIC_LOG(DEBUG, TAG, "OUT SendDeleteCredentialRequest");
1173
1174     return ret;
1175 }
1176
1177 /**
1178  * Callback handler of unlink second device.
1179  *
1180  * @param[in] ctx             ctx value passed to callback from calling function.
1181  * @param[in] handle          handle to an invocation
1182  * @param[in] clientResponse  Response from queries to remote servers.
1183  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction and
1184  *          OC_STACK_KEEP_TRANSACTION to keep it.
1185  */
1186 static OCStackApplicationResult SRPUnlinkDevice2CB(void *unlinkCtx, OCDoHandle handle,
1187         OCClientResponse *clientResponse)
1188 {
1189     (void) handle;
1190     OIC_LOG(DEBUG, TAG, "IN SRPUnlinkDevice2CB");
1191     VERIFY_NON_NULL(TAG, unlinkCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1192     UnlinkData_t* unlinkData = (UnlinkData_t*)unlinkCtx;
1193
1194     if (clientResponse)
1195     {
1196         OIC_LOG(DEBUG, TAG, "Valid client response for device 2");
1197         registerResultForUnlinkDevices(unlinkData, clientResponse->result, IDX_SECOND_DEVICE_RES);
1198
1199         if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1200         {
1201             OIC_LOG(DEBUG, TAG, "Credential of device2 revoked");
1202         }
1203         else
1204         {
1205             OIC_LOG(ERROR, TAG, "Unable to delete credential information from device 2");
1206             unlinkData->resultCallback(unlinkData->ctx,
1207                                        unlinkData->numOfResults, unlinkData->unlinkRes, true);
1208             goto error;
1209         }
1210     }
1211     else
1212     {
1213         registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1214                                        IDX_SECOND_DEVICE_RES);
1215         unlinkData->resultCallback(unlinkData->ctx,
1216                                    unlinkData->numOfResults, unlinkData->unlinkRes, true);
1217         OIC_LOG(ERROR, TAG, "SRPUnlinkDevice2CB received Null clientResponse");
1218         goto error;
1219     }
1220
1221     //Update provisioning DB when succes case.
1222     if (OC_STACK_OK != PDMUnlinkDevices(&unlinkData->unlinkDev[0].doxm->deviceID,
1223                                        &unlinkData->unlinkDev[1].doxm->deviceID))
1224     {
1225         OIC_LOG(FATAL, TAG, "All requests are successfully done but update provisioning DB FAILED.");
1226         registerResultForUnlinkDevices(unlinkData, OC_STACK_INCONSISTENT_DB, IDX_DB_UPDATE_RES);
1227         unlinkData->resultCallback(unlinkData->ctx,
1228                                    unlinkData->numOfResults, unlinkData->unlinkRes, true);
1229         goto error;
1230     }
1231     unlinkData->resultCallback(unlinkData->ctx, unlinkData->numOfResults, unlinkData->unlinkRes,
1232                                false);
1233
1234 error:
1235     DeleteUnlinkData_t(unlinkData);
1236     OIC_LOG(DEBUG, TAG, "OUT SRPUnlinkDevice2CB");
1237     return OC_STACK_DELETE_TRANSACTION;
1238
1239 }
1240
1241 /**
1242  * Callback handler of unlink first device.
1243  *
1244  * @param[in] ctx             ctx value passed to callback from calling function.
1245  * @param[in] handle          handle to an invocation
1246  * @param[in] clientResponse  Response from queries to remote servers.
1247  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction and
1248  *          OC_STACK_KEEP_TRANSACTION to keep it.
1249  */
1250 static OCStackApplicationResult SRPUnlinkDevice1CB(void *unlinkCtx, OCDoHandle handle,
1251         OCClientResponse *clientResponse)
1252 {
1253     OIC_LOG_V(INFO, TAG, "Inside SRPUnlinkDevice1CB ");
1254     VERIFY_NON_NULL(TAG, unlinkCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1255     UnlinkData_t* unlinkData = (UnlinkData_t*)unlinkCtx;
1256     (void) handle;
1257
1258     if (clientResponse)
1259     {
1260         OIC_LOG(DEBUG, TAG, "Valid client response for device 1");
1261         registerResultForUnlinkDevices(unlinkData, clientResponse->result, IDX_FIRST_DEVICE_RES);
1262
1263         if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1264         {
1265             OIC_LOG(DEBUG, TAG, "Credential of device 1 is revoked");
1266
1267             // Second revocation request to second device.
1268             OCStackResult res = SendDeleteCredentialRequest((void*)unlinkData, &SRPUnlinkDevice2CB,
1269                                                     &unlinkData->unlinkDev[0],
1270                                                     &unlinkData->unlinkDev[1] /*Dest*/);
1271             OIC_LOG_V(DEBUG, TAG, "Credential revocation request device 2, result :: %d",res);
1272             if (OC_STACK_OK != res)
1273             {
1274                  OIC_LOG(ERROR, TAG, "Error while sending revocation request for device 2");
1275                  registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1276                                                 IDX_SECOND_DEVICE_RES);
1277                  unlinkData->resultCallback(unlinkData->ctx,
1278                                             unlinkData->numOfResults, unlinkData->unlinkRes, true);
1279                  goto error;
1280             }
1281             else
1282             {
1283                 OIC_LOG(DEBUG, TAG, "Request for credential revocation successfully sent");
1284                 return OC_STACK_DELETE_TRANSACTION;
1285             }
1286         }
1287         else
1288         {
1289             OIC_LOG(ERROR, TAG, "Unable to delete credential information from device 1");
1290
1291             unlinkData->resultCallback(unlinkData->ctx, unlinkData->numOfResults,
1292                                             unlinkData->unlinkRes, true);
1293             goto error;
1294         }
1295     }
1296     else
1297     {
1298         OIC_LOG(DEBUG, TAG, "Invalid response from server");
1299         registerResultForUnlinkDevices(unlinkData, OC_STACK_INVALID_REQUEST_HANDLE,
1300                                        IDX_FIRST_DEVICE_RES );
1301         unlinkData->resultCallback(unlinkData->ctx,
1302                                    unlinkData->numOfResults, unlinkData->unlinkRes,
1303                                    true);
1304         OIC_LOG(ERROR, TAG, "SRPUnlinkDevice1CB received Null clientResponse");
1305     }
1306
1307 error:
1308     OIC_LOG_V(INFO, TAG, "Out SRPUnlinkDevice1CB");
1309     DeleteUnlinkData_t(unlinkData);
1310     return OC_STACK_DELETE_TRANSACTION;
1311 }
1312
1313 /*
1314 * Function to unlink devices.
1315 * This function will remove the credential & relationship between the two devices.
1316 *
1317 * @param[in] ctx Application context would be returned in result callback
1318 * @param[in] pTargetDev1 first device information to be unlinked.
1319 * @param[in] pTargetDev2 second device information to be unlinked.
1320 * @param[in] resultCallback callback provided by API user, callback will be called when
1321 *            device unlink is finished.
1322  * @return  OC_STACK_OK in case of success and other value otherwise.
1323 */
1324 OCStackResult SRPUnlinkDevices(void* ctx,
1325                                const OCProvisionDev_t* pTargetDev1,
1326                                const OCProvisionDev_t* pTargetDev2,
1327                                OCProvisionResultCB resultCallback)
1328 {
1329     OIC_LOG(INFO, TAG, "IN SRPUnlinkDevices");
1330
1331     if (!pTargetDev1 || !pTargetDev2 || !pTargetDev1->doxm || !pTargetDev2->doxm)
1332     {
1333         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL parameters");
1334         return OC_STACK_INVALID_PARAM;
1335     }
1336     if (!resultCallback)
1337     {
1338         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : NULL Callback");
1339         return OC_STACK_INVALID_CALLBACK;
1340     }
1341     if (0 == memcmp(&pTargetDev1->doxm->deviceID, &pTargetDev2->doxm->deviceID, sizeof(OicUuid_t)))
1342     {
1343         OIC_LOG(INFO, TAG, "SRPUnlinkDevices : Same device ID");
1344         return OC_STACK_INVALID_PARAM;
1345     }
1346
1347     OIC_LOG(INFO, TAG, "Unlinking following devices: ");
1348     PMPrintOCProvisionDev(pTargetDev1);
1349     PMPrintOCProvisionDev(pTargetDev2);
1350
1351     // Mark the link status stale
1352     OCStackResult res = PDMSetLinkStale(&pTargetDev1->doxm->deviceID, &pTargetDev2->doxm->deviceID);
1353     if (OC_STACK_OK != res)
1354     {
1355         OIC_LOG(FATAL, TAG, "unable to update DB. Try again.");
1356         return res;
1357     }
1358
1359     UnlinkData_t* unlinkData = (UnlinkData_t*)OICCalloc(1, sizeof(UnlinkData_t));
1360     VERIFY_NON_NULL(TAG, unlinkData, ERROR, OC_STACK_NO_MEMORY);
1361
1362     //Initialize unlink data
1363     unlinkData->ctx = ctx;
1364     unlinkData->unlinkDev = (OCProvisionDev_t*)OICCalloc(2, sizeof(OCProvisionDev_t));
1365     if (NULL == unlinkData->unlinkDev)
1366     {
1367         OIC_LOG(ERROR, TAG, "Memory allocation failed");
1368         res = OC_STACK_NO_MEMORY;
1369         goto error;
1370     }
1371
1372     unlinkData->unlinkRes = (OCProvisionResult_t*)OICCalloc(3, sizeof(OCProvisionResult_t));
1373     if (NULL == unlinkData->unlinkRes)
1374     {
1375         OIC_LOG(ERROR, TAG, "Memory allocation failed");
1376         res = OC_STACK_NO_MEMORY;
1377         goto error;
1378     }
1379
1380     memcpy(&unlinkData->unlinkDev[0], pTargetDev1, sizeof(OCProvisionDev_t));
1381     memcpy(&unlinkData->unlinkDev[1], pTargetDev2, sizeof(OCProvisionDev_t));
1382
1383     unlinkData->numOfResults = 0;
1384     unlinkData->resultCallback = resultCallback;
1385
1386     res = SendDeleteCredentialRequest((void*)unlinkData, &SRPUnlinkDevice1CB,
1387                                        &unlinkData->unlinkDev[1], &unlinkData->unlinkDev[0]);
1388     if (OC_STACK_OK != res)
1389     {
1390         OIC_LOG(ERROR, TAG, "SRPUnlinkDevices : SendDeleteCredentialRequest failed");
1391         goto error;
1392     }
1393
1394     return res;
1395
1396 error:
1397     OIC_LOG(INFO, TAG, "OUT SRPUnlinkDevices");
1398     DeleteUnlinkData_t(unlinkData);
1399     return res;
1400 }
1401
1402 static void DeleteRemoveData_t(RemoveData_t* pRemoveData)
1403 {
1404     if (pRemoveData)
1405     {
1406         OICFree(pRemoveData->revokeTargetDev);
1407         OCDeleteDiscoveredDevices(pRemoveData->linkedDevList);
1408         OICFree(pRemoveData->removeRes);
1409         OICFree(pRemoveData);
1410     }
1411 }
1412
1413 static void registerResultForRemoveDevice(RemoveData_t *removeData, OicUuid_t *pLinkedDevId,
1414                                           OCStackResult stackresult, bool hasError)
1415 {
1416     OIC_LOG_V(INFO, TAG, "Inside registerResultForRemoveDevice removeData->numOfResults is %zu\n",
1417                          removeData->numOfResults + 1);
1418     if (pLinkedDevId)
1419     {
1420         memcpy(removeData->removeRes[(removeData->numOfResults)].deviceId.id,
1421                &pLinkedDevId->id, sizeof(pLinkedDevId->id));
1422     }
1423     else
1424     {
1425         memset(removeData->removeRes[(removeData->numOfResults)].deviceId.id,
1426                0, sizeof(pLinkedDevId->id) );
1427     }
1428     removeData->removeRes[(removeData->numOfResults)].res = stackresult;
1429     removeData->hasError = hasError;
1430     ++(removeData->numOfResults);
1431
1432     // If we get suffcient result from linked devices, we have to call user callback and do free
1433     if (removeData->sizeOfResArray == removeData->numOfResults)
1434     {
1435         if(!removeData->hasError)
1436         {
1437             // Remove device info from prvisioning database
1438             if (OC_STACK_OK != PDMDeleteDevice(&removeData->revokeTargetDev->doxm->deviceID))
1439             {
1440                 OIC_LOG(ERROR, TAG, "ResultForRemoveDevice : Failed to remove device in PDM.");
1441                 removeData->hasError = true;
1442             }
1443         }
1444         removeData->resultCallback(removeData->ctx, removeData->numOfResults, removeData->removeRes,
1445                                    removeData->hasError);
1446         DeleteRemoveData_t(removeData);
1447     }
1448  }
1449
1450 /**
1451  * Callback handler of unlink first device.
1452  *
1453  * @param[in] ctx             ctx value passed to callback from calling function.
1454  * @param[in] handle          handle to an invocation
1455  * @param[in] clientResponse  Response from queries to remote servers.
1456  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1457  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
1458  */
1459 static OCStackApplicationResult SRPRemoveDeviceCB(void *delDevCtx, OCDoHandle handle,
1460         OCClientResponse *clientResponse)
1461 {
1462     //Update the delete credential into delete device context
1463     //Save the deleted status in delDevCtx
1464     (void)handle;
1465     OIC_LOG_V(INFO, TAG, "Inside SRPRemoveDeviceCB.");
1466     VERIFY_NON_NULL(TAG, delDevCtx, ERROR, OC_STACK_DELETE_TRANSACTION);
1467     OCStackResult res = OC_STACK_ERROR;
1468
1469     RemoveData_t* removeData = (RemoveData_t*)delDevCtx;
1470
1471     if (clientResponse)
1472     {
1473         OicUuid_t revDevUuid = {.id={0}};
1474         if(UUID_LENGTH == clientResponse->identity.id_length)
1475         {
1476             memcpy(revDevUuid.id, clientResponse->identity.id, sizeof(revDevUuid.id));
1477             if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1478             {
1479                 res = PDMUnlinkDevices(&removeData->revokeTargetDev->doxm->deviceID, &revDevUuid);
1480                 if (OC_STACK_OK != res)
1481                 {
1482                     OIC_LOG(ERROR, TAG, "PDMSetLinkStale() FAIL: PDB is an obsolete one.");
1483                            registerResultForRemoveDevice(removeData, &revDevUuid,
1484                            OC_STACK_INCONSISTENT_DB, true);
1485
1486                     return OC_STACK_DELETE_TRANSACTION;
1487                 }
1488
1489                 registerResultForRemoveDevice(removeData, &revDevUuid,
1490                                               OC_STACK_RESOURCE_DELETED, false);
1491             }
1492             else
1493             {
1494                 registerResultForRemoveDevice(removeData, &revDevUuid,
1495                                               clientResponse->result, true);
1496                 OIC_LOG(ERROR, TAG, "Unexpected result from DELETE credential request!");
1497             }
1498         }
1499         else
1500         {
1501             OIC_LOG_V(WARNING, TAG, "Incorrect length of device UUID was sent from %s:%d",
1502                      clientResponse->devAddr.addr, clientResponse->devAddr.port);
1503
1504             if (OC_STACK_RESOURCE_DELETED == clientResponse->result)
1505             {
1506                 /**
1507                   * Since server's credential was deleted,
1508                   * register result as OC_STACK_INCONSISTENT_DB with NULL UUID.
1509                   */
1510                 OIC_LOG_V(ERROR, TAG, "But server's credential was deleted.");
1511                 registerResultForRemoveDevice(removeData, NULL, OC_STACK_INCONSISTENT_DB, true);
1512             }
1513             else
1514             {
1515                 registerResultForRemoveDevice(removeData, NULL, clientResponse->result, true);
1516             }
1517         }
1518     }
1519     else
1520     {
1521         registerResultForRemoveDevice(removeData, NULL, OC_STACK_ERROR, true);
1522         OIC_LOG(ERROR, TAG, "SRPRemoveDevices received Null clientResponse");
1523     }
1524
1525
1526     return OC_STACK_DELETE_TRANSACTION;
1527 }
1528
1529 static OCStackResult GetListofDevToReqDeleteCred(const OCProvisionDev_t* pRevokeTargetDev,
1530                                                  OCProvisionDev_t* pOwnedDevList,
1531                                                  OCUuidList_t* pLinkedUuidList,
1532                                                  OCProvisionDev_t** ppLinkedDevList,
1533                                                  size_t *numOfLinkedDev)
1534 {
1535     // pOwnedDevList could be NULL. It means no alived and owned device now.
1536     if (pRevokeTargetDev == NULL || pLinkedUuidList == NULL ||\
1537         ppLinkedDevList == NULL || numOfLinkedDev == NULL)
1538     {
1539         return OC_STACK_INVALID_PARAM;
1540     }
1541
1542     size_t cnt = 0;
1543     OCUuidList_t *curUuid = NULL, *tmpUuid = NULL;
1544     LL_FOREACH_SAFE(pLinkedUuidList, curUuid, tmpUuid)
1545     {
1546         // Mark the link status stale.
1547         OCStackResult res = PDMSetLinkStale(&curUuid->dev, &pRevokeTargetDev->doxm->deviceID);
1548         if (OC_STACK_OK != res)
1549         {
1550             OIC_LOG(FATAL, TAG, "PDMSetLinkStale() FAIL: PDB is an obsolete one.");
1551             return OC_STACK_INCONSISTENT_DB;
1552         }
1553
1554         if (pOwnedDevList)
1555         {
1556             // If this linked device is alive (power-on), add the deivce to the list.
1557             OCProvisionDev_t *curDev = NULL, *tmpDev = NULL;
1558             LL_FOREACH_SAFE(pOwnedDevList, curDev, tmpDev)
1559             {
1560                 if (memcmp(curDev->doxm->deviceID.id, curUuid->dev.id, sizeof(curUuid->dev.id)) == 0)
1561                 {
1562                     OCProvisionDev_t* targetDev = PMCloneOCProvisionDev(curDev);
1563                     if (NULL == targetDev)
1564                     {
1565                         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Cloning OCProvisionDev_t Failed.");
1566                         return OC_STACK_NO_MEMORY;
1567                     }
1568
1569                     LL_PREPEND(*ppLinkedDevList, targetDev);
1570                     cnt++;
1571                     break;
1572                 }
1573             }
1574         }
1575     }
1576     *numOfLinkedDev = cnt;
1577     return OC_STACK_OK;
1578 }
1579
1580 /*
1581 * Function to device revocation
1582 * This function will remove credential of target device from all devices in subnet.
1583 *
1584 * @param[in] ctx Application context would be returned in result callback
1585 * @param[in] waitTimeForOwnedDeviceDiscovery Maximum wait time for owned device discovery.(seconds)
1586 * @param[in] pTargetDev Device information to be revoked.
1587 * @param[in] resultCallback callback provided by API user, callback will be called when
1588 *            credential revocation is finished.
1589 * @return  OC_STACK_OK in case of success and other value otherwise.
1590 *          If OC_STACK_OK is returned, the caller of this API should wait for callback.
1591 *          OC_STACK_CONTINUE means operation is success but no request is need to be initiated.
1592 */
1593 OCStackResult SRPRemoveDevice(void* ctx, unsigned short waitTimeForOwnedDeviceDiscovery,
1594                              const OCProvisionDev_t* pTargetDev, OCProvisionResultCB resultCallback)
1595 {
1596     OIC_LOG(INFO, TAG, "IN SRPRemoveDevice");
1597
1598     if (!pTargetDev  || 0 == waitTimeForOwnedDeviceDiscovery)
1599     {
1600         OIC_LOG(INFO, TAG, "SRPRemoveDevice : NULL parameters");
1601         return OC_STACK_INVALID_PARAM;
1602     }
1603     if (!resultCallback)
1604     {
1605         OIC_LOG(INFO, TAG, "SRPRemoveDevice : NULL Callback");
1606         return OC_STACK_INVALID_CALLBACK;
1607     }
1608
1609     // Declare variables in here to handle error cases with goto statement.
1610     OCProvisionDev_t* pOwnedDevList = NULL;
1611     OCProvisionDev_t* pLinkedDevList = NULL;
1612     RemoveData_t* removeData = NULL;
1613
1614     //1. Find all devices that has a credential of the revoked device
1615     OCUuidList_t* pLinkedUuidList = NULL;
1616     size_t numOfDevices = 0;
1617     OCStackResult res = OC_STACK_ERROR;
1618     res = PDMGetLinkedDevices(&pTargetDev->doxm->deviceID, &pLinkedUuidList, &numOfDevices);
1619     if (OC_STACK_OK != res)
1620     {
1621         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Failed to get linked devices information");
1622         return res;
1623     }
1624     // if there is no related device, we can skip further process.
1625     if (0 == numOfDevices)
1626     {
1627         OIC_LOG(DEBUG, TAG, "SRPRemoveDevice : No linked device found.");
1628         res = OC_STACK_CONTINUE;
1629         goto error;
1630     }
1631
1632     //2. Find owned device from the network
1633     res = PMDeviceDiscovery(waitTimeForOwnedDeviceDiscovery, true, &pOwnedDevList);
1634     if (OC_STACK_OK != res)
1635     {
1636         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : Failed to PMDeviceDiscovery");
1637         goto error;
1638     }
1639
1640     //3. Make a list of devices to send DELETE credential request
1641     //   by comparing owned devices from provisioning database with mutlicast discovery result.
1642     size_t numOfLinkedDev = 0;
1643     res = GetListofDevToReqDeleteCred(pTargetDev, pOwnedDevList, pLinkedUuidList,
1644                                       &pLinkedDevList, &numOfLinkedDev);
1645     if (OC_STACK_OK != res)
1646     {
1647         OIC_LOG(ERROR, TAG, "SRPRemoveDevice : GetListofDevToReqDeleteCred() failed");
1648         goto error;
1649     }
1650     if (0 == numOfLinkedDev) // This case means, there is linked device but it's not alive now.
1651     {                       // So we don't have to send request message.
1652         OIC_LOG(DEBUG, TAG, "SRPRemoveDevice : No alived & linked device found.");
1653         res = OC_STACK_CONTINUE;
1654         goto error;
1655     }
1656
1657     // 4. Prepare RemoveData Context data.
1658     removeData = (RemoveData_t*)OICCalloc(1, sizeof(RemoveData_t));
1659     if (!removeData)
1660     {
1661         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : Failed to memory allocation");
1662         res = OC_STACK_NO_MEMORY;
1663         goto error;
1664     }
1665
1666     removeData->revokeTargetDev = PMCloneOCProvisionDev(pTargetDev);
1667     if (!removeData->revokeTargetDev)
1668     {
1669         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : PMCloneOCProvisionDev Failed");
1670         res = OC_STACK_NO_MEMORY;
1671         goto error;
1672     }
1673
1674     removeData->removeRes =
1675         (OCProvisionResult_t*)OICCalloc(numOfLinkedDev, sizeof(OCProvisionResult_t));
1676     if (!removeData->removeRes)
1677     {
1678         OIC_LOG(ERROR, TAG, "SRPRemoveDevices : Failed to memory allocation");
1679         res = OC_STACK_NO_MEMORY;
1680         goto error;
1681     }
1682
1683     removeData->ctx = ctx;
1684     removeData->linkedDevList = pLinkedDevList;
1685     removeData->resultCallback = resultCallback;
1686     removeData->numOfResults = 0;
1687     removeData->sizeOfResArray = numOfLinkedDev;
1688     removeData->hasError = false;
1689
1690     // 5. Send DELETE credential request to linked devices.
1691     OCProvisionDev_t *curDev = NULL, *tmpDev = NULL;
1692     OCStackResult totalRes = OC_STACK_ERROR;  /* variable for checking request is sent or not */
1693     LL_FOREACH_SAFE(pLinkedDevList, curDev, tmpDev)
1694     {
1695         res = SendDeleteCredentialRequest((void*)removeData, &SRPRemoveDeviceCB,
1696                                            removeData->revokeTargetDev, curDev);
1697         if (OC_STACK_OK != res)
1698         {
1699             OIC_LOG_V(ERROR, TAG, "SRPRemoveDevice : Fail to send the DELETE credential request to\
1700                      %s:%u", curDev->endpoint.addr, curDev->endpoint.port);
1701         }
1702         else
1703         {
1704             totalRes = OC_STACK_OK; // This means at least one request is successfully sent.
1705         }
1706     }
1707
1708     PDMDestoryOicUuidLinkList(pLinkedUuidList); //TODO: Modify API name to have unified convention.
1709     PMDeleteDeviceList(pOwnedDevList);
1710     OIC_LOG(INFO, TAG, "OUT SRPRemoveDevice");
1711
1712     return totalRes; // Caller of this API should wait callback if totalRes == OC_STACK_OK.
1713
1714 error:
1715     PDMDestoryOicUuidLinkList(pLinkedUuidList);
1716     PMDeleteDeviceList(pOwnedDevList);
1717     PMDeleteDeviceList(pLinkedDevList);
1718     if (removeData)
1719     {
1720         OICFree(removeData->revokeTargetDev);
1721         OICFree(removeData->removeRes);
1722         OICFree(removeData);
1723     }
1724     OIC_LOG(INFO, TAG, "OUT ERROR case SRPRemoveDevice");
1725     return res;
1726 }
1727
1728 /**
1729  * Internal Function to store results in result array during GetCredResourceCB.
1730  */
1731 static void registerResultForGetCredResourceCB(GetSecData_t *GetSecData,
1732                                              OCStackResult stackresult)
1733 {
1734    OIC_LOG_V(INFO, TAG, "Inside registerResultForGetCredResourceCB "
1735            "GetSecData->numOfResults is %d\n", GetSecData->numOfResults);
1736    memcpy(GetSecData->resArr[(GetSecData->numOfResults)].deviceId.id,
1737           GetSecData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
1738    GetSecData->resArr[(GetSecData->numOfResults)].res = stackresult;
1739    ++(GetSecData->numOfResults);
1740 }
1741
1742 /**
1743  * Callback handler of SRPGetCredResource.
1744  *
1745  * @param[in] ctx             ctx value passed to callback from calling function.
1746  * @param[in] UNUSED          handle to an invocation
1747  * @param[in] clientResponse  Response from queries to remote servers.
1748  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1749  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
1750  */
1751 static OCStackApplicationResult SRPGetCredResourceCB(void *ctx, OCDoHandle UNUSED,
1752                                                   OCClientResponse *clientResponse)
1753 {
1754     OIC_LOG_V(INFO, TAG, "Inside SRPGetCredResourceCB.");
1755     (void)UNUSED;
1756     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
1757     GetSecData_t *GetSecData = (GetSecData_t*)ctx;
1758     OCProvisionResultCB resultCallback = GetSecData->resultCallback;
1759
1760     if (clientResponse)
1761     {
1762         if(OC_STACK_OK == clientResponse->result)
1763         {
1764             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1765             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1766
1767             OIC_LOG_BUFFER(DEBUG, TAG, payload, size);
1768
1769             registerResultForGetCredResourceCB(GetSecData, OC_STACK_OK);
1770             ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1771                                                     GetSecData->resArr,
1772                                                     false);
1773              OICFree(GetSecData->resArr);
1774              OICFree(GetSecData);
1775
1776             return OC_STACK_DELETE_TRANSACTION;
1777         }
1778     }
1779     registerResultForGetCredResourceCB(GetSecData, OC_STACK_OK);
1780     ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1781                                             GetSecData->resArr,
1782                                             false);
1783     OIC_LOG_V(ERROR, TAG, "SRPGetCredResourceCB received Null clientResponse");
1784     OICFree(GetSecData->resArr);
1785     OICFree(GetSecData);
1786
1787     return OC_STACK_DELETE_TRANSACTION;
1788 }
1789
1790
1791 OCStackResult SRPGetCredResource(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
1792         OCProvisionResultCB resultCallback)
1793 {
1794     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
1795     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
1796
1797     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1798     if(!PMGenerateQuery(true,
1799                         selectedDeviceInfo->endpoint.addr,
1800                         selectedDeviceInfo->securePort,
1801                         selectedDeviceInfo->connType,
1802                         query, sizeof(query), OIC_RSRC_CRED_URI))
1803     {
1804         OIC_LOG(ERROR, TAG, "SRPGetCredResource : Failed to generate query");
1805         return OC_STACK_ERROR;
1806     }
1807     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1808
1809     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
1810     cbData.cb = &SRPGetCredResourceCB;
1811     GetSecData_t* GetSecData = (GetSecData_t*)OICCalloc(1, sizeof(GetSecData_t));
1812     if (NULL == GetSecData)
1813     {
1814         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1815         return OC_STACK_NO_MEMORY;
1816     }
1817     GetSecData->deviceInfo = selectedDeviceInfo;
1818     GetSecData->resultCallback = resultCallback;
1819     GetSecData->numOfResults=0;
1820     GetSecData->ctx = ctx;
1821
1822     int noOfRiCalls = 1;
1823     GetSecData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
1824     if (NULL == GetSecData->resArr)
1825     {
1826         OICFree(GetSecData);
1827         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1828         return OC_STACK_NO_MEMORY;
1829     }
1830     cbData.context = (void *)GetSecData;
1831     cbData.cd = NULL;
1832     OCMethod method = OC_REST_GET;
1833     OCDoHandle handle = NULL;
1834     OIC_LOG(DEBUG, TAG, "Sending Get Cred to  resource server");
1835     OCStackResult ret = OCDoResource(&handle, method, query, NULL, NULL,
1836             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1837     if (OC_STACK_OK != ret)
1838     {
1839         OIC_LOG(ERROR, TAG, "OCStack resource error");
1840         OICFree(GetSecData->resArr);
1841         OICFree(GetSecData);
1842     }
1843     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
1844     OIC_LOG(DEBUG, TAG, "OUT SRPGetCredResource");
1845
1846     return OC_STACK_OK;
1847 }
1848
1849 /**
1850  * Internal Function to store results in result array during GetACLResourceCB.
1851  */
1852 static void registerResultForGetACLResourceCB(GetSecData_t *GetSecData,
1853                                              OCStackResult stackresult)
1854 {
1855    OIC_LOG_V(INFO, TAG, "Inside registerResultForGetACLResourceCB "
1856            "GetSecData->numOfResults is %d\n", GetSecData->numOfResults);
1857    memcpy(GetSecData->resArr[(GetSecData->numOfResults)].deviceId.id,
1858           GetSecData->deviceInfo->doxm->deviceID.id, UUID_LENGTH);
1859    GetSecData->resArr[(GetSecData->numOfResults)].res = stackresult;
1860    ++(GetSecData->numOfResults);
1861 }
1862
1863 /**
1864  * Callback handler of SRPGetACLResource.
1865  *
1866  * @param[in] ctx             ctx value passed to callback from calling function.
1867  * @param[in] UNUSED          handle to an invocation
1868  * @param[in] clientResponse  Response from queries to remote servers.
1869  * @return  OC_STACK_DELETE_TRANSACTION to delete the transaction
1870  *          and  OC_STACK_KEEP_TRANSACTION to keep it.
1871  */
1872 static OCStackApplicationResult SRPGetACLResourceCB(void *ctx, OCDoHandle UNUSED,
1873                                                   OCClientResponse *clientResponse)
1874 {
1875     OIC_LOG_V(INFO, TAG, "Inside SRPGetACLResourceCB.");
1876     (void)UNUSED;
1877     VERIFY_NON_NULL(TAG, ctx, ERROR, OC_STACK_DELETE_TRANSACTION);
1878     GetSecData_t *GetSecData = (GetSecData_t*)ctx;
1879     OCProvisionResultCB resultCallback = GetSecData->resultCallback;
1880
1881     if (clientResponse)
1882     {
1883         if(OC_STACK_OK == clientResponse->result)
1884         {
1885             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1886             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1887
1888             OIC_LOG_BUFFER(DEBUG, TAG, payload, size);
1889
1890             registerResultForGetACLResourceCB(GetSecData, OC_STACK_OK);
1891             ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1892                                                     GetSecData->resArr,
1893                                                     false);
1894              OICFree(GetSecData->resArr);
1895              OICFree(GetSecData);
1896
1897             return OC_STACK_DELETE_TRANSACTION;
1898         }
1899     }
1900     registerResultForGetACLResourceCB(GetSecData, OC_STACK_OK);
1901     ((OCProvisionResultCB)(resultCallback))(GetSecData->ctx, GetSecData->numOfResults,
1902                                             GetSecData->resArr,
1903                                             false);
1904     OIC_LOG_V(ERROR, TAG, "SRPGetACLResourceCB received Null clientResponse");
1905     OICFree(GetSecData->resArr);
1906     OICFree(GetSecData);
1907
1908     return OC_STACK_DELETE_TRANSACTION;
1909 }
1910
1911
1912 OCStackResult SRPGetACLResource(void *ctx, const OCProvisionDev_t *selectedDeviceInfo,
1913         OCProvisionResultCB resultCallback)
1914 {
1915     VERIFY_NON_NULL(TAG, selectedDeviceInfo, ERROR,  OC_STACK_INVALID_PARAM);
1916     VERIFY_NON_NULL(TAG, resultCallback, ERROR,  OC_STACK_INVALID_CALLBACK);
1917
1918     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1919     if(!PMGenerateQuery(true,
1920                         selectedDeviceInfo->endpoint.addr,
1921                         selectedDeviceInfo->securePort,
1922                         selectedDeviceInfo->connType,
1923                         query, sizeof(query), OIC_RSRC_ACL_URI))
1924     {
1925         OIC_LOG(ERROR, TAG, "SRPGetACLResource : Failed to generate query");
1926         return OC_STACK_ERROR;
1927     }
1928     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1929
1930     OCCallbackData cbData =  {.context=NULL, .cb=NULL, .cd=NULL};
1931     cbData.cb = &SRPGetACLResourceCB;
1932     GetSecData_t* GetSecData = (GetSecData_t*)OICCalloc(1, sizeof(GetSecData_t));
1933     if (NULL == GetSecData)
1934     {
1935         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1936         return OC_STACK_NO_MEMORY;
1937     }
1938     GetSecData->deviceInfo = selectedDeviceInfo;
1939     GetSecData->resultCallback = resultCallback;
1940     GetSecData->numOfResults=0;
1941     GetSecData->ctx = ctx;
1942
1943     int noOfRiCalls = 1;
1944     GetSecData->resArr = (OCProvisionResult_t*)OICCalloc(noOfRiCalls, sizeof(OCProvisionResult_t));
1945     if (NULL == GetSecData->resArr)
1946     {
1947         OICFree(GetSecData);
1948         OIC_LOG(ERROR, TAG, "Unable to allocate memory");
1949         return OC_STACK_NO_MEMORY;
1950     }
1951     cbData.context = (void *)GetSecData;
1952     cbData.cd = NULL;
1953     OCMethod method = OC_REST_GET;
1954     OCDoHandle handle = NULL;
1955     OIC_LOG(DEBUG, TAG, "Sending Get ACL to resource server");
1956     OCStackResult ret = OCDoResource(&handle, method, query, NULL, NULL,
1957             selectedDeviceInfo->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1958     if (OC_STACK_OK != ret)
1959     {
1960         OIC_LOG(ERROR, TAG, "OCStack resource error");
1961         OICFree(GetSecData->resArr);
1962         OICFree(GetSecData);
1963     }
1964     VERIFY_SUCCESS(TAG, (OC_STACK_OK == ret), ERROR, OC_STACK_ERROR);
1965     OIC_LOG(DEBUG, TAG, "OUT SRPGetACLResource");
1966
1967     return OC_STACK_OK;
1968 }