resource/csdk/security/provisioning/src/pmutility.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 #ifndef _POSIX_C_SOURCE
  21 #define _POSIX_C_SOURCE 200112L
  22 #endif
  23
  24 #include "iotivity_config.h"
  25 #ifdef HAVE_UNISTD_H
  26 #include <unistd.h>
  27 #endif
  28 #ifdef HAVE_STRING_H
  29 #include <string.h>
  30 #endif
  31
  32 #include "ocstack.h"
  33 #include "oic_malloc.h"
  34 #include "oic_string.h"
  35 #include "oic_time.h"
  36 #include "logger.h"
  37 #include "cJSON.h"
  38 #include "utlist.h"
  39 #include "ocpayload.h"
  40
  41 #include "securevirtualresourcetypes.h"
  42 #include "srmresourcestrings.h" //@note: SRM's internal header
  43 #include "doxmresource.h"       //@note: SRM's internal header
  44 #include "pstatresource.h"      //@note: SRM's internal header
  45 #include "verresource.h"      //@note: SRM's internal header
  46
  47 #include "pmtypes.h"
  48 #include "pmutility.h"
  49
  50 #include "srmutility.h"
  51
  52 #define TAG ("PM-UTILITY")
  53
  54 typedef struct _DiscoveryInfo{
  55     OCProvisionDev_t    **ppDevicesList;
  56     bool                isOwnedDiscovery;
  57     bool                isSingleDiscovery;
  58     bool                isFound;
  59     const OicUuid_t     *targetId;
  60 } DiscoveryInfo;
  61
  62 /*
  63  * Function to discover secre port information through unicast
  64  *
  65  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  66  * @param[in] clientResponse  Response information(It will contain payload)
  67  *
  68  * @return OC_STACK_OK on success otherwise error.
  69  */
  70 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
  71                                          const OCClientResponse *clientResponse);
  72
  73 /*
  74  * Function to discover security version information through unicast
  75  *
  76  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  77  * @param[in] clientResponse  Response information(It will contain payload)
  78  *
  79  * @return OC_STACK_OK on success otherwise error.
  80  */
  81 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
  82                                               const OCClientResponse *clientResponse);
  83
  84 /**
  85  * Callback handler for PMDeviceDiscovery API.
  86  *
  87  * @param[in] ctx             User context
  88  * @param[in] handle          Handler for response
  89  * @param[in] clientResponse  Response information (It will contain payload)
  90  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
  91  *         OC_STACK_DELETE_TRANSACTION to delete it.
  92  */
  93 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
  94                                 OCClientResponse *clientResponse);
  95
  96 /**
  97  * Callback handler for getting secure port information using /oic/res discovery.
  98  *
  99  * @param[in] ctx             user context
 100  * @param[in] handle          Handle for response
 101  * @param[in] clientResponse  Response information(It will contain payload)
 102  *
 103  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 104  *         OC_STACK_DELETE_TRANSACTION to delete it.
 105  */
 106 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 107                                  OCClientResponse *clientResponse);
 108
 109 /**
 110  * Callback handler for security version discovery.
 111  *
 112  * @param[in] ctx             User context
 113  * @param[in] handle          Handler for response
 114  * @param[in] clientResponse  Response information (It will contain payload)
 115  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 116  *         OC_STACK_DELETE_TRANSACTION to delete it.
 117  */
 118 static OCStackApplicationResult SecVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 119                                 OCClientResponse *clientResponse);
 120
 121 /**
 122  * Function to search node in linked list that matches given IP and port.
 123  *
 124  * @param[in] pList         List of OCProvisionDev_t.
 125  * @param[in] addr          address of target device.
 126  * @param[in] port          port of remote server.
 127  *
 128  * @return pointer of OCProvisionDev_t if exist, otherwise NULL
 129  */
 130 OCProvisionDev_t* GetDevice(OCProvisionDev_t **ppDevicesList, const char* addr, const uint16_t port)
 131 {
 132     if(NULL == addr || NULL == *ppDevicesList)
 133     {
 134         OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
 135         return NULL;
 136     }
 137
 138     OCProvisionDev_t *ptr = NULL;
 139     LL_FOREACH(*ppDevicesList, ptr)
 140     {
 141         if( strcmp(ptr->endpoint.addr, addr) == 0 && port == ptr->endpoint.port)
 142         {
 143             return ptr;
 144         }
 145     }
 146
 147     return NULL;
 148 }
 149
 150
 151 /**
 152  * Add device information to list.
 153  *
 154  * @param[in] pList         List of OCProvisionDev_t.
 155  * @param[in] endpoint      target device endpoint.
 156  * @param[in] connType      connectivity type of endpoint
 157  * @param[in] doxm          pointer to doxm instance.
 158  *
 159  * @return OC_STACK_OK for success and error code otherwise.
 160  */
 161 OCStackResult AddDevice(OCProvisionDev_t **ppDevicesList, OCDevAddr* endpoint,
 162                         OCConnectivityType connType, OicSecDoxm_t *doxm)
 163 {
 164     if (NULL == endpoint)
 165     {
 166         return OC_STACK_INVALID_PARAM;
 167     }
 168
 169     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, endpoint->addr, endpoint->port);
 170     if(!ptr)
 171     {
 172         ptr = (OCProvisionDev_t *)OICCalloc(1, sizeof (OCProvisionDev_t));
 173         if (NULL == ptr)
 174         {
 175             OIC_LOG(ERROR, TAG, "Error while allocating memory for linkedlist node !!");
 176             return OC_STACK_NO_MEMORY;
 177         }
 178
 179         ptr->endpoint = *endpoint;
 180         ptr->doxm = doxm;
 181         ptr->securePort = DEFAULT_SECURE_PORT;
 182         ptr->next = NULL;
 183         ptr->connType = connType;
 184         ptr->devStatus = DEV_STATUS_ON; //AddDevice is called when discovery(=alive)
 185         OICStrcpy(ptr->secVer, MAX_VERSION_LEN, DEFAULT_SEC_VERSION); // version initialization
 186
 187         LL_PREPEND(*ppDevicesList, ptr);
 188     }
 189
 190     return OC_STACK_OK;
 191 }
 192
 193 /**
 194  * Function to set secure port information from the given list of devices.
 195  *
 196  * @param[in] pList         List of OCProvisionDev_t.
 197  * @param[in] addr          address of target device.
 198  * @param[in] port          port of remote server.
 199  * @param[in] secureport    secure port information.
 200  *
 201  * @return OC_STACK_OK for success and errorcode otherwise.
 202  */
 203 static OCStackResult UpdateSecurePortOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 204                                        uint16_t port, uint16_t securePort
 205 #ifdef __WITH_TLS__
 206                                        ,uint16_t tcpPort
 207 #endif
 208                                        )
 209 {
 210     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 211
 212     if(!ptr)
 213     {
 214         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 215         return OC_STACK_ERROR;
 216     }
 217
 218     ptr->securePort = securePort;
 219
 220 #ifdef __WITH_TLS__
 221     ptr->tcpPort = tcpPort;
 222 #endif
 223
 224     return OC_STACK_OK;
 225 }
 226
 227 /**
 228  * Function to set security version information from the given list of devices.
 229  *
 230  * @param[in] pList         List of OCProvisionDev_t.
 231  * @param[in] addr          address of target device.
 232  * @param[in] port          port of remote server.
 233  * @param[in] secVer    security version information.
 234  *
 235  * @return OC_STACK_OK for success and errorcode otherwise.
 236  */
 237 OCStackResult UpdateSecVersionOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 238                                        uint16_t port, const char* secVer)
 239 {
 240     if (NULL == secVer)
 241     {
 242         return OC_STACK_INVALID_PARAM;
 243     }
 244
 245     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 246
 247     if(!ptr)
 248     {
 249         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 250         return OC_STACK_ERROR;
 251     }
 252
 253     OICStrcpy(ptr->secVer, MAX_VERSION_LEN, secVer);
 254
 255     return OC_STACK_OK;
 256 }
 257
 258 /**
 259  * This function deletes list of provision target devices
 260  *
 261  * @param[in] pDevicesList         List of OCProvisionDev_t.
 262  */
 263 void PMDeleteDeviceList(OCProvisionDev_t *pDevicesList)
 264 {
 265     if(pDevicesList)
 266     {
 267         OCProvisionDev_t *del = NULL, *tmp = NULL;
 268         LL_FOREACH_SAFE(pDevicesList, del, tmp)
 269         {
 270             LL_DELETE(pDevicesList, del);
 271
 272             DeleteDoxmBinData(del->doxm);
 273             DeletePstatBinData(del->pstat);
 274             OICFree(del);
 275         }
 276     }
 277 }
 278
 279 OCProvisionDev_t* PMCloneOCProvisionDev(const OCProvisionDev_t* src)
 280 {
 281     OIC_LOG(DEBUG, TAG, "IN PMCloneOCProvisionDev");
 282
 283     if (!src)
 284     {
 285         OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Invalid parameter");
 286         return NULL;
 287     }
 288
 289     // TODO: Consider use VERIFY_NON_NULL instead of if ( null check ) { goto exit; }
 290     OCProvisionDev_t* newDev = (OCProvisionDev_t*)OICCalloc(1, sizeof(OCProvisionDev_t));
 291     VERIFY_NON_NULL(TAG, newDev, ERROR);
 292
 293     memcpy(&newDev->endpoint, &src->endpoint, sizeof(OCDevAddr));
 294
 295     if (src->pstat)
 296     {
 297         newDev->pstat= (OicSecPstat_t*)OICCalloc(1, sizeof(OicSecPstat_t));
 298         VERIFY_NON_NULL(TAG, newDev->pstat, ERROR);
 299
 300         memcpy(newDev->pstat, src->pstat, sizeof(OicSecPstat_t));
 301         // We have to assign NULL for not necessary information to prevent memory corruption.
 302         newDev->pstat->sm = NULL;
 303     }
 304
 305     if (src->doxm)
 306     {
 307         newDev->doxm = (OicSecDoxm_t*)OICCalloc(1, sizeof(OicSecDoxm_t));
 308         VERIFY_NON_NULL(TAG, newDev->doxm, ERROR);
 309
 310         memcpy(newDev->doxm, src->doxm, sizeof(OicSecDoxm_t));
 311         // We have to assign NULL for not necessary information to prevent memory corruption.
 312         newDev->doxm->oxmType = NULL;
 313         newDev->doxm->oxm = NULL;
 314     }
 315
 316     if (0 == strlen(src->secVer))
 317     {
 318         OICStrcpy(newDev->secVer, MAX_VERSION_LEN, DEFAULT_SEC_VERSION);
 319     }
 320     else
 321     {
 322         OICStrcpy(newDev->secVer, MAX_VERSION_LEN, src->secVer);
 323     }
 324
 325     newDev->securePort = src->securePort;
 326     newDev->devStatus = src->devStatus;
 327     newDev->connType = src->connType;
 328     newDev->next = NULL;
 329
 330     OIC_LOG(DEBUG, TAG, "OUT PMCloneOCProvisionDev");
 331
 332     return newDev;
 333
 334 exit:
 335     OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Failed to allocate memory");
 336     if (newDev)
 337     {
 338         OICFree(newDev->pstat);
 339         OICFree(newDev->doxm);
 340         OICFree(newDev);
 341     }
 342     return NULL;
 343 }
 344
 345 /**
 346  * Timeout implementation for secure discovery. When performing secure discovery,
 347  * we should wait a certain period of time for getting response of each devices.
 348  *
 349  * @param[in]  waittime  Timeout in seconds.
 350  * @param[in]  waitForStackResponse if true timeout function will call OCProcess while waiting.
 351  * @return OC_STACK_OK on success otherwise error.
 352  */
 353 OCStackResult PMTimeout(unsigned short waittime, bool waitForStackResponse)
 354 {
 355     OCStackResult res = OC_STACK_OK;
 356
 357     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 358     while (OC_STACK_OK == res)
 359     {
 360         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 361
 362         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 363         if (elapsed > waittime)
 364         {
 365             return OC_STACK_OK;
 366         }
 367         if (waitForStackResponse)
 368         {
 369             res = OCProcess();
 370         }
 371     }
 372     return res;
 373 }
 374
 375 /**
 376  * Extract secure port information from payload of discovery response.
 377  *
 378  * @param[in] jsonStr response payload of /oic/res discovery.
 379  *
 380  * @return Secure port
 381  */
 382 uint16_t GetSecurePortFromJSON(char* jsonStr)
 383 {
 384     // TODO: Modify error handling
 385     if (NULL == jsonStr)
 386     {
 387         return 0;
 388     }
 389     cJSON *jsonProp = NULL;
 390     cJSON *jsonP = NULL;
 391     cJSON *jsonPort = NULL;
 392
 393     cJSON *jsonRoot = cJSON_Parse(jsonStr);
 394     if(!jsonRoot)
 395     {
 396         // TODO: Add error log & return default secure port
 397         return 0;
 398     }
 399
 400     jsonProp = cJSON_GetObjectItem(jsonRoot, "prop");
 401     if(!jsonProp)
 402     {
 403         // TODO: Add error log & return default secure port
 404         return 0;
 405     }
 406
 407     jsonP = cJSON_GetObjectItem(jsonProp, "p");
 408     if(!jsonP)
 409     {
 410         // TODO: Add error log & return default secure port
 411         return 0;
 412     }
 413
 414     jsonPort = cJSON_GetObjectItem(jsonP, "port");
 415     if(!jsonPort)
 416     {
 417         // TODO: Add error log & return default secure port
 418         return 0;
 419     }
 420
 421     return (uint16_t)jsonPort->valueint;
 422 }
 423
 424 bool PMGenerateQuery(bool isSecure,
 425                      const char* address, uint16_t port,
 426                      OCConnectivityType connType,
 427                      char* buffer, size_t bufferSize, const char* uri)
 428 {
 429     if(!address || !buffer || !uri)
 430     {
 431         OIC_LOG(ERROR, TAG, "PMGenerateQuery : Invalid parameters.");
 432         return false;
 433     }
 434
 435     int snRet = 0;
 436     char* prefix = (isSecure == true) ? COAPS_PREFIX : COAP_PREFIX;
 437
 438     switch(connType & CT_MASK_ADAPTER)
 439     {
 440         case CT_ADAPTER_TCP:
 441             prefix = (isSecure == true) ? COAPS_TCP_PREFIX : COAP_TCP_PREFIX;
 442         case CT_ADAPTER_IP:
 443             switch(connType & CT_MASK_FLAGS & ~CT_FLAG_SECURE)
 444             {
 445                 case CT_IP_USE_V4:
 446                         snRet = snprintf(buffer, bufferSize, "%s%s:%d%s",
 447                                          prefix, address, port, uri);
 448                     break;
 449                 case CT_IP_USE_V6:
 450                         snRet = snprintf(buffer, bufferSize, "%s[%s]:%d%s",
 451                                          prefix, address, port, uri);
 452                     break;
 453                 default:
 454                     OIC_LOG(ERROR, TAG, "Unknown address format.");
 455                     return false;
 456             }
 457             // snprintf return value check
 458             if (snRet < 0)
 459             {
 460                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 461                 return false;
 462             }
 463             else if ((size_t)snRet >= bufferSize)
 464             {
 465                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 466                 return false;
 467             }
 468
 469             break;
 470         // TODO: We need to verify tinyDTLS in below cases
 471         case CT_ADAPTER_GATT_BTLE:
 472         case CT_ADAPTER_RFCOMM_BTEDR:
 473             OIC_LOG(ERROR, TAG, "Not supported connectivity adapter.");
 474             return false;
 475             break;
 476         default:
 477             OIC_LOG(ERROR, TAG, "Unknown connectivity adapter.");
 478             return false;
 479     }
 480
 481     return true;
 482 }
 483
 484 static OCStackApplicationResult SecurityVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 485                                 OCClientResponse *clientResponse)
 486 {
 487     if (ctx == NULL)
 488     {
 489         OIC_LOG(ERROR, TAG, "Lost List of device information");
 490         return OC_STACK_KEEP_TRANSACTION;
 491     }
 492     (void)UNUSED;
 493     if (clientResponse)
 494     {
 495         if  (NULL == clientResponse->payload)
 496         {
 497             OIC_LOG(INFO, TAG, "Skiping Null payload");
 498             return OC_STACK_KEEP_TRANSACTION;
 499         }
 500         if (OC_STACK_OK != clientResponse->result)
 501         {
 502             OIC_LOG(INFO, TAG, "Error in response");
 503             return OC_STACK_KEEP_TRANSACTION;
 504         }
 505         else
 506         {
 507             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 508             {
 509                 OIC_LOG(INFO, TAG, "Unknown payload type");
 510                 return OC_STACK_KEEP_TRANSACTION;
 511             }
 512
 513             OicSecVer_t *ptrVer = NULL;
 514             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 515             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 516
 517             OCStackResult res = CBORPayloadToVer(payload, size, &ptrVer);
 518             if ((NULL == ptrVer) && (OC_STACK_OK != res))
 519             {
 520                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 521                 return OC_STACK_KEEP_TRANSACTION;
 522             }
 523             else
 524             {
 525                 OIC_LOG(DEBUG, TAG, "Successfully converted ver cbor to bin.");
 526
 527                 //If this is owend device discovery we have to filter out the responses.
 528                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 529                 res = UpdateSecVersionOfDevice(pDInfo->ppDevicesList, clientResponse->devAddr.addr,
 530                                                          clientResponse->devAddr.port, ptrVer->secv);
 531                 if (OC_STACK_OK != res)
 532                 {
 533                     OIC_LOG(ERROR, TAG, "Error while getting security version.");
 534                     DeleteVerBinData(ptrVer);
 535                     return OC_STACK_KEEP_TRANSACTION;
 536                 }
 537
 538                 OIC_LOG(INFO, TAG, "= Discovered security version =");
 539                 OIC_LOG_V(DEBUG, TAG, "IP %s", clientResponse->devAddr.addr);
 540                 OIC_LOG_V(DEBUG, TAG, "PORT %d", clientResponse->devAddr.port);
 541                 OIC_LOG_V(DEBUG, TAG, "VERSION %s", ptrVer->secv);
 542
 543                 OIC_LOG(INFO, TAG, "Exiting SecVersionDiscoveryHandler.");
 544                 DeleteVerBinData(ptrVer);
 545             }
 546         }
 547     }
 548     else
 549     {
 550         OIC_LOG(INFO, TAG, "Skiping Null response");
 551         return OC_STACK_KEEP_TRANSACTION;
 552     }
 553
 554     return  OC_STACK_DELETE_TRANSACTION;
 555 }
 556
 557 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 558                                  OCClientResponse *clientResponse)
 559 {
 560     if (ctx == NULL)
 561     {
 562         OIC_LOG(ERROR, TAG, "Lost List of device information");
 563         return OC_STACK_DELETE_TRANSACTION;
 564     }
 565     (void)UNUSED;
 566     if (clientResponse)
 567     {
 568         if  (NULL == clientResponse->payload)
 569         {
 570             OIC_LOG(INFO, TAG, "Skiping Null payload");
 571         }
 572         else
 573         {
 574             if (PAYLOAD_TYPE_DISCOVERY != clientResponse->payload->type)
 575             {
 576                 OIC_LOG(INFO, TAG, "Wrong payload type");
 577                 return OC_STACK_DELETE_TRANSACTION;
 578             }
 579
 580             uint16_t securePort = 0;
 581             OCResourcePayload* resPayload = ((OCDiscoveryPayload*)clientResponse->payload)->resources;
 582
 583             // Use seure port of doxm for OTM and Provision.
 584             while (resPayload)
 585             {
 586                 if (0 == strncmp(resPayload->uri, OIC_RSRC_DOXM_URI, strlen(OIC_RSRC_DOXM_URI)))
 587                 {
 588                     OIC_LOG_V(INFO,TAG,"resPaylod->uri:%s",resPayload->uri);
 589                     OIC_LOG(INFO, TAG, "Found doxm resource.");
 590                     break;
 591                 }
 592                 else
 593                 {
 594                     resPayload = resPayload->next;
 595                 }
 596             }
 597             if (NULL == resPayload)
 598             {
 599                 OIC_LOG(ERROR, TAG, "Can not find doxm resource.");
 600                 return OC_STACK_DELETE_TRANSACTION;
 601             }
 602             if (resPayload && resPayload->secure)
 603             {
 604                 securePort = resPayload->port;
 605             }
 606             else
 607             {
 608                 OIC_LOG(INFO, TAG, "Can not find secure port information.");
 609                 return OC_STACK_DELETE_TRANSACTION;
 610             }
 611 #ifdef __WITH_TLS__
 612             OIC_LOG_V(DEBUG, TAG, "%s: TCP port from discovery = %d", __func__, resPayload->tcpPort);
 613 #endif
 614             DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 615             OCStackResult res = UpdateSecurePortOfDevice(pDInfo->ppDevicesList,
 616                                                          clientResponse->devAddr.addr,
 617                                                          clientResponse->devAddr.port,
 618                                                          securePort
 619 #ifdef __WITH_TLS__
 620                                                          ,resPayload->tcpPort
 621 #endif
 622                                                          );
 623             if (OC_STACK_OK != res)
 624             {
 625                 OIC_LOG(ERROR, TAG, "Error while getting secure port.");
 626                 return OC_STACK_DELETE_TRANSACTION;
 627             }
 628
 629             if(pDInfo->isSingleDiscovery)
 630             {
 631                 pDInfo->isFound = true;
 632             }
 633
 634 /*
 635  * Since security version discovery does not used anymore, disable security version discovery.
 636  * Need to discussion to removing all version discovery related codes.
 637  */
 638 #if 0
 639             res = SecurityVersionDiscovery(pDInfo, clientResponse);
 640             if(OC_STACK_OK != res)
 641             {
 642                 OIC_LOG(ERROR, TAG, "Failed to SecurityVersionDiscovery");
 643                 return OC_STACK_DELETE_TRANSACTION;
 644             }
 645 #endif
 646
 647             OIC_LOG(INFO, TAG, "Exiting SecurePortDiscoveryHandler.");
 648         }
 649
 650         return  OC_STACK_DELETE_TRANSACTION;
 651     }
 652     else
 653     {
 654         OIC_LOG(INFO, TAG, "Skiping Null response");
 655     }
 656
 657     return  OC_STACK_DELETE_TRANSACTION;
 658 }
 659
 660 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 661                                 OCClientResponse *clientResponse)
 662 {
 663     if (ctx == NULL)
 664     {
 665         OIC_LOG(ERROR, TAG, "Lost List of device information");
 666         return OC_STACK_KEEP_TRANSACTION;
 667     }
 668     (void)UNUSED;
 669     if (clientResponse)
 670     {
 671         if  (NULL == clientResponse->payload)
 672         {
 673             OIC_LOG(INFO, TAG, "Skiping Null payload");
 674             return OC_STACK_KEEP_TRANSACTION;
 675         }
 676         if (OC_STACK_OK != clientResponse->result)
 677         {
 678             OIC_LOG(INFO, TAG, "Error in response");
 679             return OC_STACK_KEEP_TRANSACTION;
 680         }
 681         else
 682         {
 683             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 684             {
 685                 OIC_LOG(INFO, TAG, "Unknown payload type");
 686                 return OC_STACK_KEEP_TRANSACTION;
 687             }
 688
 689             OicSecDoxm_t *ptrDoxm = NULL;
 690             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 691             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 692
 693             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 694             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 695             {
 696                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 697                 return OC_STACK_KEEP_TRANSACTION;
 698             }
 699             else
 700             {
 701                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
 702
 703                 //If this is owend device discovery we have to filter out the responses.
 704                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 705                 OCProvisionDev_t **ppDevicesList = pDInfo->ppDevicesList;
 706
 707                 // Get my device ID from doxm resource
 708                 OicUuid_t myId;
 709                 memset(&myId, 0, sizeof(myId));
 710                 OCStackResult res = GetDoxmDevOwnerId(&myId);
 711                 if(OC_STACK_OK != res)
 712                 {
 713                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
 714                     DeleteDoxmBinData(ptrDoxm);
 715                     return OC_STACK_KEEP_TRANSACTION;
 716                 }
 717
 718                 // If this is owned discovery response but owner is not me then discard it.
 719                 if( (pDInfo->isOwnedDiscovery) &&
 720                     (0 != memcmp(&ptrDoxm->owner.id, &myId.id, sizeof(myId.id))) )
 721                 {
 722                     OIC_LOG(DEBUG, TAG, "Discovered device is not owend by me");
 723                     DeleteDoxmBinData(ptrDoxm);
 724                     return OC_STACK_KEEP_TRANSACTION;
 725                 }
 726
 727                 res = GetDoxmDeviceID(&myId);
 728                 if(OC_STACK_OK != res)
 729                 {
 730                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
 731                     DeleteDoxmBinData(ptrDoxm);
 732                     return OC_STACK_KEEP_TRANSACTION;
 733                 }
 734                 //if targetId and discovered deviceID are different, discard it
 735                 if ((pDInfo->isSingleDiscovery) &&
 736                     (0 != memcmp(&ptrDoxm->deviceID.id, &pDInfo->targetId->id, sizeof(pDInfo->targetId->id))) )
 737                 {
 738                     OIC_LOG(DEBUG, TAG, "Discovered device is not target device");
 739                     DeleteDoxmBinData(ptrDoxm);
 740                     return OC_STACK_KEEP_TRANSACTION;
 741                 }
 742                 //if this is owned discovery and this is PT's reply, discard it
 743                 if (((pDInfo->isSingleDiscovery) || (pDInfo->isOwnedDiscovery)) &&
 744                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
 745                 {
 746                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
 747                     DeleteDoxmBinData(ptrDoxm);
 748                     return OC_STACK_KEEP_TRANSACTION;
 749                 }
 750
 751                 res = AddDevice(ppDevicesList, &clientResponse->devAddr,
 752                         clientResponse->connType, ptrDoxm);
 753                 if (OC_STACK_OK != res)
 754                 {
 755                     OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
 756                     DeleteDoxmBinData(ptrDoxm);
 757                     return OC_STACK_KEEP_TRANSACTION;
 758                 }
 759
 760                 res = SecurePortDiscovery(pDInfo, clientResponse);
 761                 if(OC_STACK_OK != res)
 762                 {
 763                     OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
 764                     DeleteDoxmBinData(ptrDoxm);
 765                     return OC_STACK_KEEP_TRANSACTION;
 766                 }
 767
 768                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
 769             }
 770
 771             return  OC_STACK_KEEP_TRANSACTION;
 772         }
 773     }
 774     else
 775     {
 776         OIC_LOG(INFO, TAG, "Skiping Null response");
 777         return OC_STACK_KEEP_TRANSACTION;
 778     }
 779
 780     return  OC_STACK_DELETE_TRANSACTION;
 781 }
 782
 783
 784 /**
 785  * Discover owned/unowned device in the specified endpoint/deviceID.
 786  * It will return the found device even though timeout is not exceeded.
 787  *
 788  * @param[in] waittime           Timeout in seconds
 789  * @param[in] deviceID           deviceID of target device.
 790  * @param[out] ppFoundDevice     OCProvisionDev_t of found device
 791  *
 792  * @return OC_STACK_OK on success otherwise error.\n
 793  *         OC_STACK_INVALID_PARAM when deviceID is NULL or ppFoundDevice is not initailized.
 794  */
 795 OCStackResult PMSingleDeviceDiscovery(unsigned short waittime, const OicUuid_t* deviceID,
 796                                  OCProvisionDev_t **ppFoundDevice)
 797 {
 798     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscovery");
 799
 800     if (NULL != *ppFoundDevice)
 801     {
 802         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 803         return OC_STACK_INVALID_PARAM;
 804     }
 805
 806     if (NULL == deviceID)
 807     {
 808         OIC_LOG(ERROR, TAG, "Invalid device ID");
 809         return OC_STACK_INVALID_PARAM;
 810     }
 811
 812
 813     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 814     if(NULL == pDInfo)
 815     {
 816         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscovery : Memory allocation failed.");
 817         return OC_STACK_NO_MEMORY;
 818     }
 819
 820     pDInfo->ppDevicesList = ppFoundDevice;
 821     pDInfo->isOwnedDiscovery = false;
 822     pDInfo->isSingleDiscovery = true;
 823     pDInfo->isFound = false;
 824     pDInfo->targetId = deviceID;
 825
 826     OCCallbackData cbData;
 827     cbData.cb = &DeviceDiscoveryHandler;
 828     cbData.context = (void *)pDInfo;
 829     cbData.cd = NULL;
 830     OCStackResult res = OC_STACK_ERROR;
 831
 832     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
 833     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "/oic/sec/doxm");
 834
 835     OCDoHandle handle = NULL;
 836     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 837                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 838     if (res != OC_STACK_OK)
 839     {
 840         OIC_LOG(ERROR, TAG, "OCStack resource error");
 841         OICFree(pDInfo);
 842         return res;
 843     }
 844
 845     //Waiting for each response.
 846     res = OC_STACK_OK;
 847     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 848     while (OC_STACK_OK == res && !pDInfo->isFound)
 849     {
 850         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 851
 852         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 853         if (elapsed > waittime)
 854         {
 855             break;
 856         }
 857         res = OCProcess();
 858     }
 859
 860     if(OC_STACK_OK != res)
 861     {
 862         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 863         OICFree(pDInfo);
 864         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 865         if(OC_STACK_OK !=  resCancel)
 866         {
 867             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 868         }
 869         return res;
 870     }
 871
 872     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 873     if (OC_STACK_OK != res)
 874     {
 875         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 876         OICFree(pDInfo);
 877         return res;
 878     }
 879     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscovery");
 880     OICFree(pDInfo);
 881     return res;
 882 }
 883
 884
 885 /**
 886  * Discover owned/unowned devices in the same IP subnet. .
 887  *
 888  * @param[in] waittime      Timeout in seconds.
 889  * @param[in] isOwned       bool flag for owned / unowned discovery
 890  * @param[in] ppDevicesList        List of OCProvisionDev_t.
 891  *
 892  * @return OC_STACK_OK on success otherwise error.
 893  */
 894 OCStackResult PMDeviceDiscovery(unsigned short waittime, bool isOwned, OCProvisionDev_t **ppDevicesList)
 895 {
 896     OIC_LOG(DEBUG, TAG, "IN PMDeviceDiscovery");
 897
 898     if (NULL != *ppDevicesList)
 899     {
 900         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 901         return OC_STACK_INVALID_PARAM;
 902     }
 903
 904     const char DOXM_OWNED_FALSE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=FALSE";
 905     const char DOXM_OWNED_TRUE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=TRUE";
 906
 907     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 908     if(NULL == pDInfo)
 909     {
 910         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
 911         return OC_STACK_NO_MEMORY;
 912     }
 913
 914     pDInfo->ppDevicesList = ppDevicesList;
 915     pDInfo->isOwnedDiscovery = isOwned;
 916     pDInfo->isSingleDiscovery = false;
 917     pDInfo->targetId = NULL;
 918
 919     OCCallbackData cbData;
 920     cbData.cb = &DeviceDiscoveryHandler;
 921     cbData.context = (void *)pDInfo;
 922     cbData.cd = NULL;
 923     OCStackResult res = OC_STACK_ERROR;
 924
 925     const char* query = isOwned ? DOXM_OWNED_TRUE_MULTICAST_QUERY :
 926                                   DOXM_OWNED_FALSE_MULTICAST_QUERY;
 927
 928     OCDoHandle handle = NULL;
 929     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 930                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 931     if (res != OC_STACK_OK)
 932     {
 933         OIC_LOG(ERROR, TAG, "OCStack resource error");
 934         OICFree(pDInfo);
 935         return res;
 936     }
 937
 938     //Waiting for each response.
 939     res = PMTimeout(waittime, true);
 940     if(OC_STACK_OK != res)
 941     {
 942         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 943         OICFree(pDInfo);
 944         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 945         if(OC_STACK_OK !=  resCancel)
 946         {
 947             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 948         }
 949         return res;
 950     }
 951     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 952     if (OC_STACK_OK != res)
 953     {
 954         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 955         OICFree(pDInfo);
 956         return res;
 957     }
 958     OIC_LOG(DEBUG, TAG, "OUT PMDeviceDiscovery");
 959     OICFree(pDInfo);
 960     return res;
 961 }
 962
 963 #ifdef _ENABLE_MULTIPLE_OWNER_
 964 static OCStackApplicationResult MOTDeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 965                                 OCClientResponse *clientResponse)
 966 {
 967     if (ctx == NULL)
 968     {
 969         OIC_LOG(ERROR, TAG, "Lost List of device information");
 970         return OC_STACK_KEEP_TRANSACTION;
 971     }
 972     (void)UNUSED;
 973     if (clientResponse)
 974     {
 975         if  (NULL == clientResponse->payload)
 976         {
 977             OIC_LOG(INFO, TAG, "Skipping Null payload");
 978             return OC_STACK_KEEP_TRANSACTION;
 979         }
 980         if (OC_STACK_OK != clientResponse->result)
 981         {
 982             OIC_LOG(INFO, TAG, "Error in response");
 983             return OC_STACK_KEEP_TRANSACTION;
 984         }
 985         else
 986         {
 987             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 988             {
 989                 OIC_LOG(INFO, TAG, "Unknown payload type");
 990                 return OC_STACK_KEEP_TRANSACTION;
 991             }
 992
 993             OicSecDoxm_t *ptrDoxm = NULL;
 994             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 995             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 996
 997             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 998             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 999             {
1000                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
1001                 return OC_STACK_KEEP_TRANSACTION;
1002             }
1003             else
1004             {
1005                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
1006
1007                 //If this is owend device discovery we have to filter out the responses.
1008                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
1009                 OCProvisionDev_t **ppDevicesList = pDInfo->ppDevicesList;
1010
1011                 // Get my device ID from doxm resource
1012                 OicUuid_t myId;
1013                 memset(&myId, 0, sizeof(myId));
1014                 OCStackResult res = GetDoxmDevOwnerId(&myId);
1015                 if(OC_STACK_OK != res)
1016                 {
1017                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
1018                     DeleteDoxmBinData(ptrDoxm);
1019                     return OC_STACK_KEEP_TRANSACTION;
1020                 }
1021
1022                 res = GetDoxmDeviceID(&myId);
1023                 if(OC_STACK_OK != res)
1024                 {
1025                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
1026                     DeleteDoxmBinData(ptrDoxm);
1027                     return OC_STACK_KEEP_TRANSACTION;
1028                 }
1029                 //if this is owned discovery and this is PT's reply, discard it
1030                 if((pDInfo->isOwnedDiscovery) &&
1031                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
1032                 {
1033                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
1034                     DeleteDoxmBinData(ptrDoxm);
1035                     return OC_STACK_KEEP_TRANSACTION;
1036                 }
1037
1038                 if(pDInfo->isOwnedDiscovery)
1039                 {
1040                     OicSecSubOwner_t* subOwner = NULL;
1041                     LL_FOREACH(ptrDoxm->subOwners, subOwner)
1042                     {
1043                         if(memcmp(myId.id, subOwner->uuid.id, sizeof(myId.id)) == 0)
1044                         {
1045                             break;
1046                         }
1047                     }
1048
1049                     if(subOwner)
1050                     {
1051                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1052                                 clientResponse->connType, ptrDoxm);
1053                         if (OC_STACK_OK != res)
1054                         {
1055                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1056                             DeleteDoxmBinData(ptrDoxm);
1057                             return OC_STACK_KEEP_TRANSACTION;
1058                         }
1059
1060                         res = SecurePortDiscovery(pDInfo, clientResponse);
1061                         if(OC_STACK_OK != res)
1062                         {
1063                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1064                             DeleteDoxmBinData(ptrDoxm);
1065                             return OC_STACK_KEEP_TRANSACTION;
1066                         }
1067                     }
1068                     else
1069                     {
1070                         OIC_LOG(ERROR, TAG, "discarding device's reply, because not a SubOwner.");
1071                         DeleteDoxmBinData(ptrDoxm);
1072                         return OC_STACK_KEEP_TRANSACTION;
1073                     }
1074                 }
1075                 else
1076                 {
1077                     if(ptrDoxm->mom && OIC_MULTIPLE_OWNER_DISABLE != ptrDoxm->mom->mode)
1078                     {
1079                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1080                                 clientResponse->connType, ptrDoxm);
1081                         if (OC_STACK_OK != res)
1082                         {
1083                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1084                             DeleteDoxmBinData(ptrDoxm);
1085                             return OC_STACK_KEEP_TRANSACTION;
1086                         }
1087
1088                         res = SecurePortDiscovery(pDInfo, clientResponse);
1089                         if(OC_STACK_OK != res)
1090                         {
1091                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1092                             DeleteDoxmBinData(ptrDoxm);
1093                             return OC_STACK_KEEP_TRANSACTION;
1094                         }
1095                     }
1096                     else
1097                     {
1098                         OIC_LOG(ERROR, TAG, "discarding mom disabled device's reply");
1099                         DeleteDoxmBinData(ptrDoxm);
1100                         return OC_STACK_KEEP_TRANSACTION;
1101                     }
1102                 }
1103
1104                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
1105             }
1106
1107             return  OC_STACK_KEEP_TRANSACTION;
1108         }
1109     }
1110     else
1111     {
1112         OIC_LOG(INFO, TAG, "Skiping Null response");
1113         return OC_STACK_KEEP_TRANSACTION;
1114     }
1115
1116     return  OC_STACK_DELETE_TRANSACTION;
1117 }
1118
1119
1120 /**
1121  * Discover multiple OTM enabled devices in the same IP subnet.
1122  *
1123  * @param[in] waittime      Timeout in seconds.
1124  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1125  *
1126  * @return OC_STACK_OK on success otherwise error.
1127  */
1128 OCStackResult PMMultipleOwnerDeviceDiscovery(unsigned short waittime, bool isMultipleOwned, OCProvisionDev_t **ppDevicesList)
1129 {
1130     OIC_LOG(DEBUG, TAG, "IN PMMultipleOwnerEnabledDeviceDiscovery");
1131
1132     if (NULL != *ppDevicesList)
1133     {
1134         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1135         return OC_STACK_INVALID_PARAM;
1136     }
1137
1138     const char *DOXM_MOM_ENABLE_MULTICAST_QUERY = "/oic/sec/doxm?mom!=0&owned=TRUE";
1139     const char *DOXM_MULTIPLE_OWNED_MULTICAST_QUERY = "/oic/sec/doxm?owned=TRUE";
1140
1141     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1142     if(NULL == pDInfo)
1143     {
1144         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1145         return OC_STACK_NO_MEMORY;
1146     }
1147
1148     pDInfo->ppDevicesList = ppDevicesList;
1149     pDInfo->isOwnedDiscovery = isMultipleOwned;
1150
1151     OCCallbackData cbData;
1152     cbData.cb = &MOTDeviceDiscoveryHandler;
1153     cbData.context = (void *)pDInfo;
1154     cbData.cd = NULL;
1155     OCStackResult res = OC_STACK_ERROR;
1156
1157     const char* query = isMultipleOwned ? DOXM_MULTIPLE_OWNED_MULTICAST_QUERY :
1158                                           DOXM_MOM_ENABLE_MULTICAST_QUERY;
1159
1160     OCDoHandle handle = NULL;
1161     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1162                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1163     if (res != OC_STACK_OK)
1164     {
1165         OIC_LOG(ERROR, TAG, "OCStack resource error");
1166         OICFree(pDInfo);
1167         return res;
1168     }
1169
1170     //Waiting for each response.
1171     res = PMTimeout(waittime, true);
1172     if(OC_STACK_OK != res)
1173     {
1174         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1175         OICFree(pDInfo);
1176         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1177         if(OC_STACK_OK !=  resCancel)
1178         {
1179             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1180         }
1181         return res;
1182     }
1183     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1184     if (OC_STACK_OK != res)
1185     {
1186         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1187         OICFree(pDInfo);
1188         return res;
1189     }
1190     OIC_LOG(DEBUG, TAG, "OUT PMMultipleOwnerEnabledDeviceDiscovery");
1191     OICFree(pDInfo);
1192     return res;
1193 }
1194
1195 #endif //_ENABLE_MULTIPLE_OWNER_
1196
1197 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
1198                                          const OCClientResponse *clientResponse)
1199 {
1200     OIC_LOG(DEBUG, TAG, "IN SecurePortDiscovery");
1201
1202     if(NULL == discoveryInfo || NULL == clientResponse)
1203     {
1204         return OC_STACK_INVALID_PARAM;
1205     }
1206     //Try to the unicast discovery to getting secure port
1207     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1208     if(!PMGenerateQuery(false,
1209                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1210                         clientResponse->connType,
1211                         query, sizeof(query), OC_RSRVD_WELL_KNOWN_URI))
1212     {
1213         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to generate query");
1214         return OC_STACK_ERROR;
1215     }
1216     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1217
1218     OCCallbackData cbData;
1219     cbData.cb = &SecurePortDiscoveryHandler;
1220     cbData.context = (void*)discoveryInfo;
1221     cbData.cd = NULL;
1222     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1223             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1224     if(OC_STACK_OK != ret)
1225     {
1226         OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
1227         return ret;
1228     }
1229     else
1230     {
1231         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1232     }
1233
1234     OIC_LOG(DEBUG, TAG, "OUT SecurePortDiscovery");
1235
1236     return ret;
1237 }
1238
1239 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
1240                                               const OCClientResponse *clientResponse)
1241 {
1242     OIC_LOG(DEBUG, TAG, "IN SecurityVersionDiscovery");
1243
1244     if(NULL == discoveryInfo || NULL == clientResponse)
1245     {
1246         return OC_STACK_INVALID_PARAM;
1247     }
1248
1249     //Try to the unicast discovery to getting security version
1250     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1251     if(!PMGenerateQuery(false,
1252                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1253                         clientResponse->connType,
1254                         query, sizeof(query), OIC_RSRC_VER_URI))
1255     {
1256         OIC_LOG(ERROR, TAG, "SecurityVersionDiscovery : Failed to generate query");
1257         return OC_STACK_ERROR;
1258     }
1259     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1260
1261     OCCallbackData cbData;
1262     cbData.cb = &SecurityVersionDiscoveryHandler;
1263     cbData.context = (void*)discoveryInfo;
1264     cbData.cd = NULL;
1265     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1266             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1267     if(OC_STACK_OK != ret)
1268     {
1269         OIC_LOG(ERROR, TAG, "Failed to Security Version Discovery");
1270         return ret;
1271     }
1272     else
1273     {
1274         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1275     }
1276
1277     OIC_LOG(DEBUG, TAG, "OUT SecurityVersionDiscovery");
1278
1279     return ret;
1280 }
1281
1282 /**
1283  * Function to print OCProvisionDev_t for debug purpose.
1284  *
1285  * @param[in] pDev Pointer to OCProvisionDev_t. It's information will be printed by OIC_LOG_XX
1286  *
1287  */
1288 void PMPrintOCProvisionDev(const OCProvisionDev_t* pDev)
1289 {
1290     if (pDev)
1291     {
1292         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t Information +++++");
1293         OIC_LOG_V(DEBUG, TAG, "IP %s", pDev->endpoint.addr);
1294         OIC_LOG_V(DEBUG, TAG, "PORT %d", pDev->endpoint.port);
1295         OIC_LOG_V(DEBUG, TAG, "S-PORT %d", pDev->securePort);
1296         OIC_LOG(DEBUG, TAG, "++++++++++++++++++++++++++++++++++++++++");
1297     }
1298     else
1299     {
1300         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t is NULL +++++");
1301     }
1302 }
1303
1304 bool PMDeleteFromUUIDList(OCUuidList_t **pUuidList, OicUuid_t *targetId)
1305 {
1306     if(*pUuidList == NULL || targetId == NULL)
1307     {
1308         return false;
1309     }
1310     OCUuidList_t *tmp1 = NULL,*tmp2=NULL;
1311     LL_FOREACH_SAFE(*pUuidList, tmp1, tmp2)
1312     {
1313         if(0 == memcmp(tmp1->dev.id, targetId->id, sizeof(targetId->id)))
1314         {
1315             LL_DELETE(*pUuidList, tmp1);
1316             OICFree(tmp1);
1317             return true;
1318         }
1319     }
1320     return false;
1321 }