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 #if defined (__TIZENRT__)
  38 #include <apps/netutils/cJSON.h>
  39 #else
  40 #include "cJSON.h"
  41 #endif
  42 #include "utlist.h"
  43 #include "ocpayload.h"
  44
  45 #include "securevirtualresourcetypes.h"
  46 #include "srmresourcestrings.h" //@note: SRM's internal header
  47 #include "doxmresource.h"       //@note: SRM's internal header
  48 #include "pstatresource.h"      //@note: SRM's internal header
  49 #include "verresource.h"      //@note: SRM's internal header
  50
  51 #include "pmtypes.h"
  52 #include "pmutility.h"
  53
  54 #include "srmutility.h"
  55
  56 #define TAG ("OIC_PM_UTILITY")
  57
  58 typedef struct _DiscoveryInfo{
  59     OCProvisionDev_t    **ppDevicesList;
  60     OCProvisionDev_t    *pCandidateList;
  61     bool                isOwnedDiscovery;
  62     bool                isSingleDiscovery;
  63     bool                isFound;
  64     const OicUuid_t     *targetId;
  65 } DiscoveryInfo;
  66
  67 /*
  68  * Function to discover secre port information through unicast
  69  *
  70  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  71  * @param[in] clientResponse  Response information(It will contain payload)
  72  *
  73  * @return OC_STACK_OK on success otherwise error.
  74  */
  75 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
  76                                          const OCClientResponse *clientResponse);
  77
  78 /**
  79  * Callback handler for PMDeviceDiscovery API.
  80  *
  81  * @param[in] ctx             User context
  82  * @param[in] handle          Handler for response
  83  * @param[in] clientResponse  Response information (It will contain payload)
  84  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
  85  *         OC_STACK_DELETE_TRANSACTION to delete it.
  86  */
  87 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
  88                                 OCClientResponse *clientResponse);
  89
  90 /*
  91  * Since security version discovery does not used anymore, disable security version discovery.
  92  * Need to discussion to removing all version discovery related codes.
  93  */
  94 #if 0
  95 /*
  96  * Function to discover security version information through unicast
  97  *
  98  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  99  * @param[in] clientResponse  Response information(It will contain payload)
 100  *
 101  * @return OC_STACK_OK on success otherwise error.
 102  */
 103 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
 104                                               const OCClientResponse *clientResponse);
 105
 106 /**
 107  * Callback handler for getting secure port information using /oic/res discovery.
 108  *
 109  * @param[in] ctx             user context
 110  * @param[in] handle          Handle for response
 111  * @param[in] clientResponse  Response information(It will contain payload)
 112  *
 113  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 114  *         OC_STACK_DELETE_TRANSACTION to delete it.
 115  */
 116 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 117                                  OCClientResponse *clientResponse);
 118 #endif
 119
 120 /*
 121  * Since security version discovery does not used anymore, disable security version discovery.
 122  * Need to discussion to removing all version discovery related codes.
 123  */
 124 #if 0
 125 /**
 126  * Callback handler for security version discovery.
 127  *
 128  * @param[in] ctx             User context
 129  * @param[in] handle          Handler for response
 130  * @param[in] clientResponse  Response information (It will contain payload)
 131  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 132  *         OC_STACK_DELETE_TRANSACTION to delete it.
 133  */
 134 static OCStackApplicationResult SecVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 135                                 OCClientResponse *clientResponse);
 136 #endif
 137
 138 /**
 139  * Function to search node in linked list that matches given IP and port.
 140  *
 141  * @param[in] pList         List of OCProvisionDev_t.
 142  * @param[in] addr          address of target device.
 143  * @param[in] port          port of remote server.
 144  *
 145  * @return pointer of OCProvisionDev_t if exist, otherwise NULL
 146  */
 147 OCProvisionDev_t* GetDevice(OCProvisionDev_t **ppDevicesList, const char* addr, const uint16_t port)
 148 {
 149     if(NULL == addr || NULL == *ppDevicesList)
 150     {
 151         OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
 152         return NULL;
 153     }
 154
 155     OCProvisionDev_t *ptr = NULL;
 156     LL_FOREACH(*ppDevicesList, ptr)
 157     {
 158         if( (ptr && ptr->endpoint.addr) && strncmp(ptr->endpoint.addr, addr, MAX_ADDR_STR_SIZE) == 0 && port == ptr->endpoint.port)
 159         {
 160             return ptr;
 161         }
 162     }
 163
 164     return NULL;
 165 }
 166
 167
 168 /**
 169  * Add device information to list.
 170  *
 171  * @param[in] pList         List of OCProvisionDev_t.
 172  * @param[in] endpoint      target device endpoint.
 173  * @param[in] connType      connectivity type of endpoint
 174  * @param[in] doxm          pointer to doxm instance.
 175  *
 176  * @return OC_STACK_OK for success and error code otherwise.
 177  */
 178 OCStackResult AddDevice(OCProvisionDev_t **ppDevicesList, OCDevAddr* endpoint,
 179                         OCConnectivityType connType, OicSecDoxm_t *doxm)
 180 {
 181     if (NULL == endpoint)
 182     {
 183         return OC_STACK_INVALID_PARAM;
 184     }
 185
 186     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, endpoint->addr, endpoint->port);
 187     if(!ptr)
 188     {
 189         ptr = (OCProvisionDev_t *)OICCalloc(1, sizeof (OCProvisionDev_t));
 190         if (NULL == ptr)
 191         {
 192             OIC_LOG(ERROR, TAG, "Error while allocating memory for linkedlist node !!");
 193             return OC_STACK_NO_MEMORY;
 194         }
 195
 196         ptr->endpoint = *endpoint;
 197         ptr->doxm = doxm;
 198         ptr->securePort = (CT_ADAPTER_GATT_BTLE == connType) ?
 199                           endpoint->port : DEFAULT_SECURE_PORT;
 200         ptr->next = NULL;
 201         ptr->connType = connType;
 202         ptr->devStatus = DEV_STATUS_ON; //AddDevice is called when discovery(=alive)
 203         OICStrcpy(ptr->secVer, OIC_SEC_MAX_VER_LEN, DEFAULT_SEC_VERSION); // version initialization
 204         ptr->handle = NULL;
 205
 206         LL_PREPEND(*ppDevicesList, ptr);
 207     }
 208
 209     return OC_STACK_OK;
 210 }
 211
 212 /**
 213  * Move device object between two device lists.
 214  *
 215  * @param[in] ppDstDevicesList         Destination list of OCProvisionDev_t.
 216  * @param[in] ppSrcDevicesList         Source list of OCProvisionDev_t.
 217  * @param[in] endpoint      target device endpoint.
 218  *
 219  * @return OC_STACK_OK for success and error code otherwise.
 220  */
 221 OCStackResult MoveDeviceList(OCProvisionDev_t **ppDstDevicesList,
 222                         OCProvisionDev_t **ppSrcDevicesList, OCDevAddr* endpoint)
 223 {
 224     if (NULL == ppSrcDevicesList || NULL == endpoint)
 225     {
 226         return OC_STACK_INVALID_PARAM;
 227     }
 228
 229     OCProvisionDev_t *ptr = GetDevice(ppSrcDevicesList, endpoint->addr, endpoint->port);
 230     if(ptr)
 231     {
 232         LL_DELETE(*ppSrcDevicesList, ptr);
 233         LL_PREPEND(*ppDstDevicesList, ptr);
 234         OIC_LOG_V(DEBUG, TAG, "MoveDeviceList success : %s(%d)", endpoint->addr, endpoint->port);
 235         return OC_STACK_OK;
 236     }
 237
 238     return OC_STACK_ERROR;
 239 }
 240
 241 /**
 242  * Function to set secure port information from the given list of devices.
 243  *
 244  * @param[in] pList         List of OCProvisionDev_t.
 245  * @param[in] addr          address of target device.
 246  * @param[in] port          port of remote server.
 247  * @param[in] secureport    secure port information.
 248  *
 249  * @return OC_STACK_OK for success and errorcode otherwise.
 250  */
 251 static OCStackResult UpdateSecurePortOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 252                                        uint16_t port, uint16_t securePort
 253 #ifdef __WITH_TLS__
 254                                        ,uint16_t tcpPort
 255 #endif
 256                                        )
 257 {
 258     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 259
 260     if(!ptr)
 261     {
 262         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 263         return OC_STACK_ERROR;
 264     }
 265
 266     ptr->securePort = (OC_ADAPTER_GATT_BTLE == ptr->endpoint.adapter) ?
 267                       ptr->endpoint.port : securePort;
 268
 269 #ifdef __WITH_TLS__
 270     ptr->tcpPort = tcpPort;
 271 #endif
 272
 273     return OC_STACK_OK;
 274 }
 275
 276 /**
 277  * Function to set security version information from the given list of devices.
 278  *
 279  * @param[in] pList         List of OCProvisionDev_t.
 280  * @param[in] addr          address of target device.
 281  * @param[in] port          port of remote server.
 282  * @param[in] secVer    security version information.
 283  *
 284  * @return OC_STACK_OK for success and errorcode otherwise.
 285  */
 286 OCStackResult UpdateSecVersionOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 287                                        uint16_t port, const char* secVer)
 288 {
 289     if (NULL == secVer)
 290     {
 291         return OC_STACK_INVALID_PARAM;
 292     }
 293
 294     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 295
 296     if(!ptr)
 297     {
 298         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 299         return OC_STACK_ERROR;
 300     }
 301
 302     OICStrcpy(ptr->secVer, OIC_SEC_MAX_VER_LEN, secVer);
 303
 304     return OC_STACK_OK;
 305 }
 306
 307 /**
 308  * This function deletes list of provision target devices
 309  *
 310  * @param[in] pDevicesList         List of OCProvisionDev_t.
 311  */
 312 void PMDeleteDeviceList(OCProvisionDev_t *pDevicesList)
 313 {
 314     if(pDevicesList)
 315     {
 316         OCProvisionDev_t *del = NULL, *tmp = NULL;
 317         LL_FOREACH_SAFE(pDevicesList, del, tmp)
 318         {
 319             LL_DELETE(pDevicesList, del);
 320
 321             DeleteDoxmBinData(del->doxm);
 322             DeletePstatBinData(del->pstat);
 323             OICFree(del);
 324         }
 325     }
 326 }
 327
 328 OCProvisionDev_t* PMCloneOCProvisionDev(const OCProvisionDev_t* src)
 329 {
 330     OIC_LOG(DEBUG, TAG, "IN PMCloneOCProvisionDev");
 331
 332     if (!src)
 333     {
 334         OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Invalid parameter");
 335         return NULL;
 336     }
 337
 338     // TODO: Consider use VERIFY_NON_NULL instead of if ( null check ) { goto exit; }
 339     OCProvisionDev_t* newDev = (OCProvisionDev_t*)OICCalloc(1, sizeof(OCProvisionDev_t));
 340     VERIFY_NON_NULL(TAG, newDev, ERROR);
 341
 342     memcpy(&newDev->endpoint, &src->endpoint, sizeof(OCDevAddr));
 343
 344     if (src->pstat)
 345     {
 346         newDev->pstat= (OicSecPstat_t*)OICCalloc(1, sizeof(OicSecPstat_t));
 347         VERIFY_NON_NULL(TAG, newDev->pstat, ERROR);
 348
 349         memcpy(newDev->pstat, src->pstat, sizeof(OicSecPstat_t));
 350         // We have to assign NULL for not necessary information to prevent memory corruption.
 351         newDev->pstat->sm = NULL;
 352     }
 353
 354     if (src->doxm)
 355     {
 356         newDev->doxm = (OicSecDoxm_t*)OICCalloc(1, sizeof(OicSecDoxm_t));
 357         VERIFY_NON_NULL(TAG, newDev->doxm, ERROR);
 358
 359         memcpy(newDev->doxm, src->doxm, sizeof(OicSecDoxm_t));
 360         // We have to assign NULL for not necessary information to prevent memory corruption.
 361         newDev->doxm->oxmType = NULL;
 362         newDev->doxm->oxm = NULL;
 363     }
 364
 365     if (0 == strlen(src->secVer))
 366     {
 367         OICStrcpy(newDev->secVer, OIC_SEC_MAX_VER_LEN, DEFAULT_SEC_VERSION);
 368     }
 369     else
 370     {
 371         OICStrcpy(newDev->secVer, OIC_SEC_MAX_VER_LEN, src->secVer);
 372     }
 373
 374     newDev->securePort = src->securePort;
 375     newDev->devStatus = src->devStatus;
 376     newDev->connType = src->connType;
 377     newDev->next = NULL;
 378
 379     OIC_LOG(DEBUG, TAG, "OUT PMCloneOCProvisionDev");
 380
 381     return newDev;
 382
 383 exit:
 384     OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Failed to allocate memory");
 385     if (newDev)
 386     {
 387         OICFree(newDev->pstat);
 388         OICFree(newDev->doxm);
 389         OICFree(newDev);
 390     }
 391     return NULL;
 392 }
 393
 394 /**
 395  * Timeout implementation for secure discovery. When performing secure discovery,
 396  * we should wait a certain period of time for getting response of each devices.
 397  *
 398  * @param[in]  waittime  Timeout in seconds.
 399  * @param[in]  waitForStackResponse if true timeout function will call OCProcess while waiting.
 400  * @return OC_STACK_OK on success otherwise error.
 401  */
 402 OCStackResult PMTimeout(unsigned short waittime, bool waitForStackResponse)
 403 {
 404     OCStackResult res = OC_STACK_OK;
 405
 406     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 407     while (OC_STACK_OK == res)
 408     {
 409         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 410
 411         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 412         if (elapsed > waittime)
 413         {
 414             return OC_STACK_OK;
 415         }
 416         if (waitForStackResponse)
 417         {
 418             res = OCProcess();
 419         }
 420     }
 421     return res;
 422 }
 423
 424 /**
 425  * Extract secure port information from payload of discovery response.
 426  *
 427  * @param[in] jsonStr response payload of /oic/res discovery.
 428  *
 429  * @return Secure port
 430  */
 431 uint16_t GetSecurePortFromJSON(char* jsonStr)
 432 {
 433     // TODO: Modify error handling
 434     if (NULL == jsonStr)
 435     {
 436         return 0;
 437     }
 438     cJSON *jsonProp = NULL;
 439     cJSON *jsonP = NULL;
 440     cJSON *jsonPort = NULL;
 441
 442     cJSON *jsonRoot = cJSON_Parse(jsonStr);
 443     if(!jsonRoot)
 444     {
 445         // TODO: Add error log & return default secure port
 446         return 0;
 447     }
 448
 449     jsonProp = cJSON_GetObjectItem(jsonRoot, "prop");
 450     if(!jsonProp)
 451     {
 452         // TODO: Add error log & return default secure port
 453         return 0;
 454     }
 455
 456     jsonP = cJSON_GetObjectItem(jsonProp, "p");
 457     if(!jsonP)
 458     {
 459         // TODO: Add error log & return default secure port
 460         return 0;
 461     }
 462
 463     jsonPort = cJSON_GetObjectItem(jsonP, "port");
 464     if(!jsonPort)
 465     {
 466         // TODO: Add error log & return default secure port
 467         return 0;
 468     }
 469
 470     return (uint16_t)jsonPort->valueint;
 471 }
 472
 473 bool PMGenerateQuery(bool isSecure,
 474                      const char* address, uint16_t port,
 475                      OCConnectivityType connType,
 476                      char* buffer, size_t bufferSize, const char* uri)
 477 {
 478     if(!address || !buffer || !uri)
 479     {
 480         OIC_LOG(ERROR, TAG, "PMGenerateQuery : Invalid parameters.");
 481         return false;
 482     }
 483
 484     int snRet = 0;
 485     char* prefix = (isSecure == true) ? COAPS_PREFIX : COAP_PREFIX;
 486
 487     switch(connType & CT_MASK_ADAPTER)
 488     {
 489         case CT_ADAPTER_TCP:
 490             prefix = (isSecure == true) ? COAPS_TCP_PREFIX : COAP_TCP_PREFIX;
 491             /*FALLTHROUGH*/
 492         case CT_ADAPTER_IP:
 493             switch(connType & CT_MASK_FLAGS & ~CT_FLAG_SECURE)
 494             {
 495                 case CT_IP_USE_V4:
 496                     snRet = snprintf(buffer, bufferSize, "%s%s:%d%s",
 497                                      prefix, address, port, uri);
 498                     break;
 499                 case CT_IP_USE_V6:
 500                 {
 501                     char addressEncoded[128] = {0};
 502
 503                     OCStackResult result = OCEncodeAddressForRFC6874(addressEncoded,
 504                                                                      sizeof(addressEncoded),
 505                                                                      address);
 506                     if (OC_STACK_OK != result)
 507                     {
 508                         OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : encoding error %d\n", result);
 509                         return false;
 510                     }
 511
 512                     snRet = snprintf(buffer, bufferSize, "%s[%s]:%d%s",
 513                                      prefix, addressEncoded, port, uri);
 514                     break;
 515                 }
 516                 default:
 517                     OIC_LOG(ERROR, TAG, "Unknown address format.");
 518                     return false;
 519             }
 520             // snprintf return value check
 521             if (snRet < 0)
 522             {
 523                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 524                 return false;
 525             }
 526             else if ((size_t)snRet >= bufferSize)
 527             {
 528                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 529                 return false;
 530             }
 531
 532             break;
 533         case CT_ADAPTER_GATT_BTLE:
 534             snRet = snprintf(buffer, bufferSize, "%s%s%s",
 535                              prefix, address, uri);
 536             // snprintf return value check
 537             if (snRet < 0)
 538             {
 539                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 540                 return false;
 541             }
 542             else if ((size_t)snRet >= bufferSize)
 543             {
 544                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 545                 return false;
 546             }
 547
 548             break;
 549         // TODO: We need to verify tinyDTLS in below cases
 550         case CT_ADAPTER_RFCOMM_BTEDR:
 551             OIC_LOG(ERROR, TAG, "Not supported connectivity adapter.");
 552             return false;
 553             break;
 554         default:
 555             OIC_LOG(ERROR, TAG, "Unknown connectivity adapter.");
 556             return false;
 557     }
 558
 559     return true;
 560 }
 561
 562 /*
 563  * Since security version discovery does not used anymore, disable security version discovery.
 564  * Need to discussion to removing all version discovery related codes.
 565  */
 566 #if 0
 567 static OCStackApplicationResult SecurityVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 568                                 OCClientResponse *clientResponse)
 569 {
 570     if (ctx == NULL)
 571     {
 572         OIC_LOG(ERROR, TAG, "Lost List of device information");
 573         return OC_STACK_KEEP_TRANSACTION;
 574     }
 575     (void)UNUSED;
 576     if (clientResponse)
 577     {
 578         if  (NULL == clientResponse->payload)
 579         {
 580             OIC_LOG(INFO, TAG, "Skiping Null payload");
 581             return OC_STACK_KEEP_TRANSACTION;
 582         }
 583         if (OC_STACK_OK != clientResponse->result)
 584         {
 585             OIC_LOG(INFO, TAG, "Error in response");
 586             return OC_STACK_KEEP_TRANSACTION;
 587         }
 588         else
 589         {
 590             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 591             {
 592                 OIC_LOG(INFO, TAG, "Unknown payload type");
 593                 return OC_STACK_KEEP_TRANSACTION;
 594             }
 595
 596             OicSecVer_t *ptrVer = NULL;
 597             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 598             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 599
 600             OCStackResult res = CBORPayloadToVer(payload, size, &ptrVer);
 601             if ((NULL == ptrVer) && (OC_STACK_OK != res))
 602             {
 603                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 604                 return OC_STACK_KEEP_TRANSACTION;
 605             }
 606             else
 607             {
 608                 OIC_LOG(DEBUG, TAG, "Successfully converted ver cbor to bin.");
 609
 610                 //If this is owend device discovery we have to filter out the responses.
 611                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 612                 res = UpdateSecVersionOfDevice(pDInfo->ppDevicesList, clientResponse->devAddr.addr,
 613                                                          clientResponse->devAddr.port, ptrVer->secv);
 614                 if (OC_STACK_OK != res)
 615                 {
 616                     OIC_LOG(ERROR, TAG, "Error while getting security version.");
 617                     DeleteVerBinData(ptrVer);
 618                     return OC_STACK_KEEP_TRANSACTION;
 619                 }
 620
 621                 OIC_LOG(INFO, TAG, "= Discovered security version =");
 622                 OIC_LOG_V(DEBUG, TAG, "IP %s", clientResponse->devAddr.addr);
 623                 OIC_LOG_V(DEBUG, TAG, "PORT %d", clientResponse->devAddr.port);
 624                 OIC_LOG_V(DEBUG, TAG, "VERSION %s", ptrVer->secv);
 625
 626                 OIC_LOG(INFO, TAG, "Exiting SecVersionDiscoveryHandler.");
 627                 DeleteVerBinData(ptrVer);
 628             }
 629         }
 630     }
 631     else
 632     {
 633         OIC_LOG(INFO, TAG, "Skiping Null response");
 634         return OC_STACK_KEEP_TRANSACTION;
 635     }
 636
 637     return  OC_STACK_DELETE_TRANSACTION;
 638 }
 639 #endif
 640
 641 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 642                                  OCClientResponse *clientResponse)
 643 {
 644     if (ctx == NULL)
 645     {
 646         OIC_LOG(ERROR, TAG, "Lost List of device information");
 647         return OC_STACK_DELETE_TRANSACTION;
 648     }
 649     (void)UNUSED;
 650     if (clientResponse)
 651     {
 652         if  (NULL == clientResponse->payload)
 653         {
 654             OIC_LOG(INFO, TAG, "Skiping Null payload");
 655         }
 656         else
 657         {
 658             if (PAYLOAD_TYPE_DISCOVERY != clientResponse->payload->type)
 659             {
 660                 OIC_LOG(INFO, TAG, "Wrong payload type");
 661                 return OC_STACK_DELETE_TRANSACTION;
 662             }
 663
 664             uint16_t securePort = 0;
 665             OCResourcePayload* resPayload = ((OCDiscoveryPayload*)clientResponse->payload)->resources;
 666
 667             // Use seure port of doxm for OTM and Provision.
 668             while (resPayload)
 669             {
 670                 if (0 == strncmp(resPayload->uri, OIC_RSRC_DOXM_URI, strlen(OIC_RSRC_DOXM_URI)))
 671                 {
 672                     OIC_LOG_V(INFO,TAG,"resPaylod->uri:%s",resPayload->uri);
 673                     OIC_LOG(INFO, TAG, "Found doxm resource.");
 674                     break;
 675                 }
 676                 else
 677                 {
 678                     resPayload = resPayload->next;
 679                 }
 680             }
 681             if (NULL == resPayload)
 682             {
 683                 OIC_LOG(ERROR, TAG, "Can not find doxm resource.");
 684                 return OC_STACK_DELETE_TRANSACTION;
 685             }
 686             if (resPayload && resPayload->secure)
 687             {
 688                 securePort = resPayload->port;
 689             }
 690             else
 691             {
 692                 OIC_LOG(INFO, TAG, "Can not find secure port information.");
 693                 return OC_STACK_DELETE_TRANSACTION;
 694             }
 695 #ifdef __WITH_TLS__
 696             OIC_LOG_V(DEBUG, TAG, "%s: TCP port from discovery = %d", __func__, resPayload->tcpPort);
 697 #endif
 698             DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 699
 700             if(pDInfo->isSingleDiscovery && pDInfo->isFound)
 701             {
 702                 OIC_LOG(INFO, TAG, "Device is already founded at Single mode.");
 703                 return OC_STACK_DELETE_TRANSACTION;
 704             }
 705
 706             OCProvisionDev_t *ptr = GetDevice(&pDInfo->pCandidateList,
 707                                                          clientResponse->devAddr.addr,
 708                                                          clientResponse->devAddr.port);
 709             if(!ptr)
 710             {
 711                 OIC_LOG(ERROR, TAG, "Can not find device information in the discovery candidate device list");
 712                 return OC_STACK_DELETE_TRANSACTION;
 713             }
 714
 715             OCStackResult res = UpdateSecurePortOfDevice(&pDInfo->pCandidateList,
 716                                                          clientResponse->devAddr.addr,
 717                                                          clientResponse->devAddr.port,
 718                                                          securePort
 719 #ifdef __WITH_TLS__
 720                                                          ,resPayload->tcpPort
 721 #endif
 722                                                          );
 723             if (OC_STACK_OK != res)
 724             {
 725                 OIC_LOG(ERROR, TAG, "Error while getting secure port.");
 726                 return OC_STACK_DELETE_TRANSACTION;
 727             }
 728
 729             res = MoveDeviceList(pDInfo->ppDevicesList, &pDInfo->pCandidateList, &clientResponse->devAddr);
 730             if(OC_STACK_OK != res)
 731             {
 732                 OIC_LOG(ERROR, TAG, "Error while move the discovered device to list.");
 733                 return OC_STACK_DELETE_TRANSACTION;
 734             }
 735
 736             if(pDInfo->isSingleDiscovery)
 737             {
 738                 pDInfo->isFound = true;
 739             }
 740
 741 /*
 742  * Since security version discovery does not used anymore, disable security version discovery.
 743  * Need to discussion to removing all version discovery related codes.
 744  */
 745 #if 0
 746             res = SecurityVersionDiscovery(pDInfo, clientResponse);
 747             if(OC_STACK_OK != res)
 748             {
 749                 OIC_LOG(ERROR, TAG, "Failed to SecurityVersionDiscovery");
 750                 return OC_STACK_DELETE_TRANSACTION;
 751             }
 752 #endif
 753             OIC_LOG(INFO, TAG, "Exiting SecurePortDiscoveryHandler.");
 754         }
 755
 756         return  OC_STACK_DELETE_TRANSACTION;
 757     }
 758     else
 759     {
 760         OIC_LOG(INFO, TAG, "Skiping Null response");
 761     }
 762
 763     return  OC_STACK_DELETE_TRANSACTION;
 764 }
 765
 766 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 767                                 OCClientResponse *clientResponse)
 768 {
 769     if (ctx == NULL)
 770     {
 771         OIC_LOG(ERROR, TAG, "Lost List of device information");
 772         return OC_STACK_KEEP_TRANSACTION;
 773     }
 774     (void)UNUSED;
 775     if (clientResponse)
 776     {
 777         if  (NULL == clientResponse->payload)
 778         {
 779             OIC_LOG(INFO, TAG, "Skiping Null payload");
 780             return OC_STACK_KEEP_TRANSACTION;
 781         }
 782         if (OC_STACK_OK != clientResponse->result)
 783         {
 784             OIC_LOG(INFO, TAG, "Error in response");
 785             return OC_STACK_KEEP_TRANSACTION;
 786         }
 787         else
 788         {
 789             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 790             {
 791                 OIC_LOG(INFO, TAG, "Unknown payload type");
 792                 return OC_STACK_KEEP_TRANSACTION;
 793             }
 794
 795             OicSecDoxm_t *ptrDoxm = NULL;
 796             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 797             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 798
 799             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 800             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 801             {
 802                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 803                 return OC_STACK_KEEP_TRANSACTION;
 804             }
 805             else
 806             {
 807                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
 808
 809                 //If this is owend device discovery we have to filter out the responses.
 810                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 811                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
 812
 813                 // Get my device ID from doxm resource
 814                 OicUuid_t myId;
 815                 memset(&myId, 0, sizeof(myId));
 816                 OCStackResult res = GetDoxmDeviceID(&myId);
 817                 if(OC_STACK_OK != res)
 818                 {
 819                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
 820                     DeleteDoxmBinData(ptrDoxm);
 821                     return OC_STACK_KEEP_TRANSACTION;
 822                 }
 823
 824                 // If this is owned discovery response but owner is not me then discard it.
 825                 if( (pDInfo->isOwnedDiscovery) &&
 826                     (0 != memcmp(&ptrDoxm->owner.id, &myId.id, sizeof(myId.id))) )
 827                 {
 828                     OIC_LOG(DEBUG, TAG, "Discovered device is not owend by me");
 829                     DeleteDoxmBinData(ptrDoxm);
 830                     return OC_STACK_KEEP_TRANSACTION;
 831                 }
 832
 833                 //if targetId and discovered deviceID are different, discard it
 834                 if ((pDInfo->isSingleDiscovery) &&
 835                     (0 != memcmp(&ptrDoxm->deviceID.id, &pDInfo->targetId->id, sizeof(pDInfo->targetId->id))) )
 836                 {
 837                     OIC_LOG(DEBUG, TAG, "Discovered device is not target device");
 838                     DeleteDoxmBinData(ptrDoxm);
 839                     return OC_STACK_KEEP_TRANSACTION;
 840                 }
 841                 //If self reply, discard it
 842                 if (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id)))
 843                 {
 844                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
 845                     DeleteDoxmBinData(ptrDoxm);
 846                     return OC_STACK_KEEP_TRANSACTION;
 847                 }
 848
 849                 res = AddDevice(ppDevicesList, &clientResponse->devAddr,
 850                         clientResponse->connType, ptrDoxm);
 851                 if (OC_STACK_OK != res)
 852                 {
 853                     OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
 854                     DeleteDoxmBinData(ptrDoxm);
 855                     return OC_STACK_KEEP_TRANSACTION;
 856                 }
 857                 res = SecurePortDiscovery(pDInfo, clientResponse);
 858                 if(OC_STACK_OK != res)
 859                 {
 860                     OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
 861                     DeleteDoxmBinData(ptrDoxm);
 862                     return OC_STACK_KEEP_TRANSACTION;
 863                 }
 864
 865                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
 866             }
 867             return  OC_STACK_KEEP_TRANSACTION;
 868         }
 869     }
 870     else
 871     {
 872         OIC_LOG(INFO, TAG, "Skiping Null response");
 873         return OC_STACK_KEEP_TRANSACTION;
 874     }
 875
 876     return  OC_STACK_DELETE_TRANSACTION;
 877 }
 878
 879 static void DeviceDiscoveryDeleteHandler(void *ctx)
 880 {
 881     OIC_LOG(DEBUG, TAG, "IN DeviceDiscoveryDeleteHandler");
 882     if (NULL == ctx)
 883     {
 884         OIC_LOG(WARNING, TAG, "Not found context in DeviceDiscoveryDeleteHandler");
 885         return;
 886     }
 887
 888     DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 889     if (NULL != pDInfo->pCandidateList)
 890     {
 891         OCProvisionDev_t *pDev = NULL;
 892         LL_FOREACH(pDInfo->pCandidateList, pDev)
 893         {
 894             OIC_LOG_V(DEBUG, TAG, "OCCancel - %s : %d",
 895                             pDev->endpoint.addr, pDev->endpoint.port);
 896             if(OC_STACK_OK !=  OCCancel(pDev->handle,OC_HIGH_QOS,NULL,0))
 897             {
 898                 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 899             }
 900         }
 901         PMDeleteDeviceList(pDInfo->pCandidateList);
 902     }
 903     OIC_LOG(DEBUG, TAG, "OUT DeviceDiscoveryDeleteHandler");
 904 }
 905
 906 /**
 907  * Discover owned/unowned device in the specified endpoint/deviceID.
 908  * It will return the found device even though timeout is not exceeded.
 909  *
 910  * @param[in] waittime           Timeout in seconds
 911  * @param[in] deviceID           deviceID of target device.
 912  * @param[out] ppFoundDevice     OCProvisionDev_t of found device
 913  *
 914  * @return OC_STACK_OK on success otherwise error.\n
 915  *         OC_STACK_INVALID_PARAM when deviceID is NULL or ppFoundDevice is not initailized.
 916  */
 917 OCStackResult PMSingleDeviceDiscovery(unsigned short waittime, const OicUuid_t* deviceID,
 918                                  OCProvisionDev_t **ppFoundDevice)
 919 {
 920     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscovery");
 921
 922     if (NULL != *ppFoundDevice)
 923     {
 924         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 925         return OC_STACK_INVALID_PARAM;
 926     }
 927
 928     if (NULL == deviceID)
 929     {
 930         OIC_LOG(ERROR, TAG, "Invalid device ID");
 931         return OC_STACK_INVALID_PARAM;
 932     }
 933
 934
 935     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 936     if(NULL == pDInfo)
 937     {
 938         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscovery : Memory allocation failed.");
 939         return OC_STACK_NO_MEMORY;
 940     }
 941
 942     pDInfo->ppDevicesList = ppFoundDevice;
 943     pDInfo->pCandidateList = NULL;
 944     pDInfo->isOwnedDiscovery = false;
 945     pDInfo->isSingleDiscovery = true;
 946     pDInfo->isFound = false;
 947     pDInfo->targetId = deviceID;
 948
 949     OCCallbackData cbData;
 950     cbData.cb = &DeviceDiscoveryHandler;
 951     cbData.context = (void *)pDInfo;
 952     cbData.cd = &DeviceDiscoveryDeleteHandler;
 953
 954     OCStackResult res = OC_STACK_ERROR;
 955
 956     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
 957     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "/oic/sec/doxm");
 958
 959     OCDoHandle handle = NULL;
 960     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 961                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 962     if (res != OC_STACK_OK)
 963     {
 964         OIC_LOG(ERROR, TAG, "OCStack resource error");
 965         OICFree(pDInfo);
 966         return res;
 967     }
 968
 969     //Waiting for each response.
 970     res = OC_STACK_OK;
 971     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 972     while (OC_STACK_OK == res && !pDInfo->isFound)
 973     {
 974         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 975
 976         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 977         if (elapsed > waittime)
 978         {
 979             break;
 980         }
 981         res = OCProcess();
 982     }
 983
 984     if(OC_STACK_OK != res)
 985     {
 986         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 987         OICFree(pDInfo);
 988         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 989         if(OC_STACK_OK !=  resCancel)
 990         {
 991             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 992         }
 993         return res;
 994     }
 995
 996     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 997     if (OC_STACK_OK != res)
 998     {
 999         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1000         OICFree(pDInfo);
1001         return res;
1002     }
1003     if (!pDInfo->isFound)
1004     {
1005         res = OC_STACK_TIMEOUT;
1006     }
1007     OICFree(pDInfo);
1008     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscovery");
1009     return res;
1010 }
1011
1012 /**
1013  * Discover owned/unowned devices in the same IP subnet. .
1014  *
1015  * @param[in] waittime      Timeout in seconds.
1016  * @param[in] isOwned       bool flag for owned / unowned discovery
1017  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1018  *
1019  * @return OC_STACK_OK on success otherwise error.
1020  */
1021 OCStackResult PMDeviceDiscovery(unsigned short waittime, bool isOwned, OCProvisionDev_t **ppDevicesList)
1022 {
1023     OIC_LOG(DEBUG, TAG, "IN PMDeviceDiscovery");
1024
1025     if (NULL != *ppDevicesList)
1026     {
1027         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1028         return OC_STACK_INVALID_PARAM;
1029     }
1030
1031     const char DOXM_OWNED_FALSE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=FALSE";
1032     const char DOXM_OWNED_TRUE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=TRUE";
1033
1034     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1035     if(NULL == pDInfo)
1036     {
1037         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1038         return OC_STACK_NO_MEMORY;
1039     }
1040
1041     pDInfo->ppDevicesList = ppDevicesList;
1042     pDInfo->pCandidateList = NULL;
1043     pDInfo->isOwnedDiscovery = isOwned;
1044     pDInfo->isSingleDiscovery = false;
1045     pDInfo->targetId = NULL;
1046
1047     OCCallbackData cbData;
1048     cbData.cb = &DeviceDiscoveryHandler;
1049     cbData.context = (void *)pDInfo;
1050     cbData.cd = &DeviceDiscoveryDeleteHandler;
1051     OCStackResult res = OC_STACK_ERROR;
1052
1053     const char* query = isOwned ? DOXM_OWNED_TRUE_MULTICAST_QUERY :
1054                                   DOXM_OWNED_FALSE_MULTICAST_QUERY;
1055
1056     OCDoHandle handle = NULL;
1057     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1058                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1059     if (res != OC_STACK_OK)
1060     {
1061         OIC_LOG(ERROR, TAG, "OCStack resource error");
1062         OICFree(pDInfo);
1063         pDInfo = NULL;
1064         return res;
1065     }
1066
1067     //Waiting for each response.
1068     res = PMTimeout(waittime, true);
1069     if(OC_STACK_OK != res)
1070     {
1071         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1072         OICFree(pDInfo);
1073         pDInfo = NULL;
1074         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1075         if(OC_STACK_OK !=  resCancel)
1076         {
1077             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1078         }
1079         return res;
1080     }
1081     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1082     if (OC_STACK_OK != res)
1083     {
1084         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1085         OICFree(pDInfo);
1086         pDInfo = NULL;
1087         return res;
1088     }
1089     OIC_LOG(DEBUG, TAG, "OUT PMDeviceDiscovery");
1090     OICFree(pDInfo);
1091     pDInfo = NULL;
1092     return res;
1093 }
1094
1095 OCStackResult PMSingleDeviceDiscoveryInUnicast(unsigned short waittime, const OicUuid_t* deviceID,
1096                                  const char* hostAddress, OCConnectivityType connType,
1097                                  OCProvisionDev_t **ppFoundDevice)
1098 {
1099     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscoveryInUnicast");
1100
1101     if (NULL != *ppFoundDevice)
1102     {
1103         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1104         return OC_STACK_INVALID_PARAM;
1105     }
1106
1107     if (NULL == deviceID)
1108     {
1109         OIC_LOG(ERROR, TAG, "Invalid device ID");
1110         return OC_STACK_INVALID_PARAM;
1111     }
1112
1113     DiscoveryInfo *pDInfo = (DiscoveryInfo*)OICCalloc(1, sizeof(DiscoveryInfo));
1114     if (NULL == pDInfo)
1115     {
1116         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscoveryInUnicast : Memory allocation failed.");
1117         return OC_STACK_NO_MEMORY;
1118     }
1119
1120     pDInfo->ppDevicesList = ppFoundDevice;
1121     pDInfo->pCandidateList = NULL;
1122     pDInfo->isOwnedDiscovery = false;
1123     pDInfo->isSingleDiscovery = true;
1124     pDInfo->isFound = false;
1125     pDInfo->targetId = deviceID;
1126
1127     OCCallbackData cbData;
1128     cbData.cb = &DeviceDiscoveryHandler;
1129     cbData.context = (void *)pDInfo;
1130     cbData.cd = &DeviceDiscoveryDeleteHandler;
1131
1132     OCStackResult res = OC_STACK_ERROR;
1133
1134     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
1135     if (hostAddress == NULL)
1136     {
1137         hostAddress = "";
1138     }
1139     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "%s/oic/sec/doxm", hostAddress);
1140     connType = connType & CT_MASK_ADAPTER;
1141
1142     OCDoHandle handle = NULL;
1143     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1144             connType, OC_HIGH_QOS, &cbData, NULL, 0);
1145
1146     if (res != OC_STACK_OK)
1147     {
1148         OIC_LOG(ERROR, TAG, "OCStack resource error");
1149         OICFree(pDInfo);
1150         pDInfo = NULL;
1151         return res;
1152     }
1153
1154     res = OC_STACK_OK;
1155     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
1156     while (OC_STACK_OK == res && !pDInfo->isFound)
1157     {
1158         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
1159
1160         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
1161         if (elapsed > waittime)
1162         {
1163             break;
1164         }
1165         res = OCProcess();
1166     }
1167
1168     if (OC_STACK_OK != res)
1169     {
1170         OIC_LOG (ERROR, TAG, "Failed to wait response for secure discovery.");
1171         OICFree(pDInfo);
1172         pDInfo = NULL;
1173         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1174         if (OC_STACK_OK !=  resCancel)
1175         {
1176             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1177         }
1178         return res;
1179     }
1180
1181     res = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1182     if (OC_STACK_OK != res)
1183     {
1184         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1185         OICFree(pDInfo);
1186         pDInfo = NULL;
1187         return res;
1188     }
1189     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscoveryInUnicast");
1190
1191     if (!pDInfo->isFound)
1192     {
1193         res = OC_STACK_TIMEOUT;
1194     }
1195
1196     OICFree(pDInfo);
1197     pDInfo = NULL;
1198     return res;
1199 }
1200
1201 #ifdef MULTIPLE_OWNER
1202 static OCStackApplicationResult MOTDeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
1203                                 OCClientResponse *clientResponse)
1204 {
1205     if (ctx == NULL)
1206     {
1207         OIC_LOG(ERROR, TAG, "Lost List of device information");
1208         return OC_STACK_KEEP_TRANSACTION;
1209     }
1210     (void)UNUSED;
1211     if (clientResponse)
1212     {
1213         if  (NULL == clientResponse->payload)
1214         {
1215             OIC_LOG(INFO, TAG, "Skipping Null payload");
1216             return OC_STACK_KEEP_TRANSACTION;
1217         }
1218         if (OC_STACK_OK != clientResponse->result)
1219         {
1220             OIC_LOG(INFO, TAG, "Error in response");
1221             return OC_STACK_KEEP_TRANSACTION;
1222         }
1223         else
1224         {
1225             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
1226             {
1227                 OIC_LOG(INFO, TAG, "Unknown payload type");
1228                 return OC_STACK_KEEP_TRANSACTION;
1229             }
1230
1231             OicSecDoxm_t *ptrDoxm = NULL;
1232             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1233             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1234
1235             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
1236             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
1237             {
1238                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
1239                 return OC_STACK_KEEP_TRANSACTION;
1240             }
1241             else
1242             {
1243                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
1244
1245                 //If this is owend device discovery we have to filter out the responses.
1246                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
1247                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
1248
1249                 // Get my device ID from doxm resource
1250                 OicUuid_t myId;
1251                 memset(&myId, 0, sizeof(myId));
1252                 OCStackResult res = GetDoxmDevOwnerId(&myId);
1253                 if(OC_STACK_OK != res)
1254                 {
1255                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
1256                     DeleteDoxmBinData(ptrDoxm);
1257                     return OC_STACK_KEEP_TRANSACTION;
1258                 }
1259
1260                 res = GetDoxmDeviceID(&myId);
1261                 if(OC_STACK_OK != res)
1262                 {
1263                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
1264                     DeleteDoxmBinData(ptrDoxm);
1265                     return OC_STACK_KEEP_TRANSACTION;
1266                 }
1267                 //if this is owned discovery and this is PT's reply, discard it
1268                 if((pDInfo->isOwnedDiscovery) &&
1269                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
1270                 {
1271                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
1272                     DeleteDoxmBinData(ptrDoxm);
1273                     return OC_STACK_KEEP_TRANSACTION;
1274                 }
1275
1276                 if(pDInfo->isOwnedDiscovery)
1277                 {
1278                     OicSecSubOwner_t* subOwner = NULL;
1279                     LL_FOREACH(ptrDoxm->subOwners, subOwner)
1280                     {
1281                         if(memcmp(myId.id, subOwner->uuid.id, sizeof(myId.id)) == 0)
1282                         {
1283                             break;
1284                         }
1285                     }
1286
1287                     if(subOwner)
1288                     {
1289                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1290                                 clientResponse->connType, ptrDoxm);
1291                         if (OC_STACK_OK != res)
1292                         {
1293                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1294                             DeleteDoxmBinData(ptrDoxm);
1295                             return OC_STACK_KEEP_TRANSACTION;
1296                         }
1297
1298                         res = SecurePortDiscovery(pDInfo, clientResponse);
1299                         if(OC_STACK_OK != res)
1300                         {
1301                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1302                             DeleteDoxmBinData(ptrDoxm);
1303                             return OC_STACK_KEEP_TRANSACTION;
1304                         }
1305                     }
1306                     else
1307                     {
1308                         OIC_LOG(ERROR, TAG, "discarding device's reply, because not a SubOwner.");
1309                         DeleteDoxmBinData(ptrDoxm);
1310                         return OC_STACK_KEEP_TRANSACTION;
1311                     }
1312                 }
1313                 else
1314                 {
1315                     if(ptrDoxm->mom && OIC_MULTIPLE_OWNER_DISABLE != ptrDoxm->mom->mode)
1316                     {
1317                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1318                                 clientResponse->connType, ptrDoxm);
1319                         if (OC_STACK_OK != res)
1320                         {
1321                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1322                             DeleteDoxmBinData(ptrDoxm);
1323                             return OC_STACK_KEEP_TRANSACTION;
1324                         }
1325
1326                         res = SecurePortDiscovery(pDInfo, clientResponse);
1327                         if(OC_STACK_OK != res)
1328                         {
1329                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1330                             DeleteDoxmBinData(ptrDoxm);
1331                             return OC_STACK_KEEP_TRANSACTION;
1332                         }
1333                     }
1334                     else
1335                     {
1336                         OIC_LOG(ERROR, TAG, "discarding mom disabled device's reply");
1337                         DeleteDoxmBinData(ptrDoxm);
1338                         return OC_STACK_KEEP_TRANSACTION;
1339                     }
1340                 }
1341
1342                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
1343             }
1344
1345             return  OC_STACK_KEEP_TRANSACTION;
1346         }
1347     }
1348     else
1349     {
1350         OIC_LOG(INFO, TAG, "Skiping Null response");
1351         return OC_STACK_KEEP_TRANSACTION;
1352     }
1353
1354     return  OC_STACK_DELETE_TRANSACTION;
1355 }
1356
1357
1358 /**
1359  * Discover multiple OTM enabled devices in the same IP subnet.
1360  *
1361  * @param[in] waittime      Timeout in seconds.
1362  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1363  *
1364  * @return OC_STACK_OK on success otherwise error.
1365  */
1366 OCStackResult PMMultipleOwnerDeviceDiscovery(unsigned short waittime, bool isMultipleOwned, OCProvisionDev_t **ppDevicesList)
1367 {
1368     OIC_LOG(DEBUG, TAG, "IN PMMultipleOwnerEnabledDeviceDiscovery");
1369
1370     if (NULL != *ppDevicesList)
1371     {
1372         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1373         return OC_STACK_INVALID_PARAM;
1374     }
1375
1376     char DOXM_MOM_ENABLE_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1377     char DOXM_MULTIPLE_OWNED_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1378     snprintf(DOXM_MOM_ENABLE_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1379              "%s?%s=%d&%s=TRUE",
1380              OIC_RSRC_DOXM_URI, OIC_JSON_MOM_NAME, OIC_MULTIPLE_OWNER_DISABLE,
1381              OIC_JSON_OWNED_NAME);
1382     snprintf(DOXM_MULTIPLE_OWNED_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1383              "%s?%s=TRUE",
1384              OIC_RSRC_DOXM_URI, OIC_JSON_OWNED_NAME);
1385
1386     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1387     if(NULL == pDInfo)
1388     {
1389         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1390         return OC_STACK_NO_MEMORY;
1391     }
1392
1393     pDInfo->ppDevicesList = ppDevicesList;
1394     pDInfo->pCandidateList = NULL;
1395     pDInfo->isOwnedDiscovery = isMultipleOwned;
1396
1397     OCCallbackData cbData;
1398     cbData.cb = &MOTDeviceDiscoveryHandler;
1399     cbData.context = (void *)pDInfo;
1400     cbData.cd = NULL;
1401     OCStackResult res = OC_STACK_ERROR;
1402
1403     const char* query = isMultipleOwned ? DOXM_MULTIPLE_OWNED_MULTICAST_QUERY :
1404                                           DOXM_MOM_ENABLE_MULTICAST_QUERY;
1405
1406     OCDoHandle handle = NULL;
1407     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1408                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1409     if (res != OC_STACK_OK)
1410     {
1411         OIC_LOG(ERROR, TAG, "OCStack resource error");
1412         OICFree(pDInfo);
1413         return res;
1414     }
1415
1416     //Waiting for each response.
1417     res = PMTimeout(waittime, true);
1418     if(OC_STACK_OK != res)
1419     {
1420         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1421         OICFree(pDInfo);
1422         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1423         if(OC_STACK_OK !=  resCancel)
1424         {
1425             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1426         }
1427         return res;
1428     }
1429     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1430     if (OC_STACK_OK != res)
1431     {
1432         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1433         OICFree(pDInfo);
1434         return res;
1435     }
1436     OIC_LOG(DEBUG, TAG, "OUT PMMultipleOwnerEnabledDeviceDiscovery");
1437     OICFree(pDInfo);
1438     return res;
1439 }
1440
1441 #endif //MULTIPLE_OWNER
1442
1443 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
1444                                          const OCClientResponse *clientResponse)
1445 {
1446     OIC_LOG(DEBUG, TAG, "IN SecurePortDiscovery");
1447
1448     if(NULL == discoveryInfo || NULL == clientResponse)
1449     {
1450         return OC_STACK_INVALID_PARAM;
1451     }
1452
1453     OCProvisionDev_t *pDev = GetDevice(&discoveryInfo->pCandidateList,
1454                         clientResponse->devAddr.addr, clientResponse->devAddr.port);
1455     if(NULL == pDev)
1456     {
1457         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to get device");
1458         return OC_STACK_ERROR;
1459     }
1460
1461     //Try to the unicast discovery to getting secure port
1462     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1463     if(!PMGenerateQuery(false,
1464                         pDev->endpoint.addr, pDev->endpoint.port,
1465                         pDev->connType,
1466                         query, sizeof(query), OC_RSRVD_WELL_KNOWN_URI))
1467     {
1468         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to generate query");
1469         return OC_STACK_ERROR;
1470     }
1471     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1472
1473     // Set filter query with rt=oic.r.doxm
1474     const char RES_DOXM_QUERY_FMT[] = "%s?%s=%s";
1475     char uri[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1476     snprintf(uri, sizeof(uri), RES_DOXM_QUERY_FMT, query,
1477             OC_RSRVD_RESOURCE_TYPE, OIC_RSRC_TYPE_SEC_DOXM);
1478
1479     OIC_LOG_V(DEBUG, TAG, "URI=%s", uri);
1480
1481     OCCallbackData cbData;
1482     cbData.cb = &SecurePortDiscoveryHandler;
1483     cbData.context = (void*)discoveryInfo;
1484     cbData.cd = NULL;
1485     OCStackResult ret = OCDoResource(&pDev->handle, OC_REST_DISCOVER, uri, 0, 0,
1486             pDev->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1487     if(OC_STACK_OK != ret)
1488     {
1489         OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
1490         return ret;
1491     }
1492     else
1493     {
1494         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1495     }
1496
1497     OIC_LOG(DEBUG, TAG, "OUT SecurePortDiscovery");
1498
1499     return ret;
1500 }
1501
1502 /*
1503  * Since security version discovery does not used anymore, disable security version discovery.
1504  * Need to discussion to removing all version discovery related codes.
1505  */
1506 #if 0
1507 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
1508                                               const OCClientResponse *clientResponse)
1509 {
1510     OIC_LOG(DEBUG, TAG, "IN SecurityVersionDiscovery");
1511
1512     if(NULL == discoveryInfo || NULL == clientResponse)
1513     {
1514         return OC_STACK_INVALID_PARAM;
1515     }
1516
1517     //Try to the unicast discovery to getting security version
1518     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1519     if(!PMGenerateQuery(false,
1520                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1521                         clientResponse->connType,
1522                         query, sizeof(query), OIC_RSRC_VER_URI))
1523     {
1524         OIC_LOG(ERROR, TAG, "SecurityVersionDiscovery : Failed to generate query");
1525         return OC_STACK_ERROR;
1526     }
1527     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1528
1529     OCCallbackData cbData;
1530     cbData.cb = &SecurityVersionDiscoveryHandler;
1531     cbData.context = (void*)discoveryInfo;
1532     cbData.cd = NULL;
1533     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1534             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1535     if(OC_STACK_OK != ret)
1536     {
1537         OIC_LOG(ERROR, TAG, "Failed to Security Version Discovery");
1538         return ret;
1539     }
1540     else
1541     {
1542         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1543     }
1544
1545     OIC_LOG(DEBUG, TAG, "OUT SecurityVersionDiscovery");
1546
1547     return ret;
1548 }
1549 #endif
1550
1551 /**
1552  * Function to print OCProvisionDev_t for debug purpose.
1553  *
1554  * @param[in] pDev Pointer to OCProvisionDev_t. It's information will be printed by OIC_LOG_XX
1555  *
1556  */
1557 void PMPrintOCProvisionDev(const OCProvisionDev_t* pDev)
1558 {
1559     if (pDev)
1560     {
1561         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t Information +++++");
1562         OIC_LOG_V(DEBUG, TAG, "IP %s", pDev->endpoint.addr);
1563         OIC_LOG_V(DEBUG, TAG, "PORT %d", pDev->endpoint.port);
1564         OIC_LOG_V(DEBUG, TAG, "S-PORT %d", pDev->securePort);
1565         OIC_LOG(DEBUG, TAG, "++++++++++++++++++++++++++++++++++++++++");
1566     }
1567     else
1568     {
1569         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t is NULL +++++");
1570     }
1571 }
1572
1573 bool PMDeleteFromUUIDList(OCUuidList_t **pUuidList, OicUuid_t *targetId)
1574 {
1575     if(*pUuidList == NULL || targetId == NULL)
1576     {
1577         return false;
1578     }
1579     OCUuidList_t *tmp1 = NULL,*tmp2=NULL;
1580     LL_FOREACH_SAFE(*pUuidList, tmp1, tmp2)
1581     {
1582         if(0 == memcmp(tmp1->dev.id, targetId->id, sizeof(targetId->id)))
1583         {
1584             LL_DELETE(*pUuidList, tmp1);
1585             OICFree(tmp1);
1586             return true;
1587         }
1588     }
1589     return false;
1590 }