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         case CT_ADAPTER_IP:
 492             switch(connType & CT_MASK_FLAGS & ~CT_FLAG_SECURE)
 493             {
 494                 case CT_IP_USE_V4:
 495                     snRet = snprintf(buffer, bufferSize, "%s%s:%d%s",
 496                                      prefix, address, port, uri);
 497                     break;
 498                 case CT_IP_USE_V6:
 499                 {
 500                     char addressEncoded[128] = {0};
 501
 502                     OCStackResult result = OCEncodeAddressForRFC6874(addressEncoded,
 503                                                                      sizeof(addressEncoded),
 504                                                                      address);
 505                     if (OC_STACK_OK != result)
 506                     {
 507                         OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : encoding error %d\n", result);
 508                         return false;
 509                     }
 510
 511                     snRet = snprintf(buffer, bufferSize, "%s[%s]:%d%s",
 512                                      prefix, addressEncoded, port, uri);
 513                     break;
 514                 }
 515                 default:
 516                     OIC_LOG(ERROR, TAG, "Unknown address format.");
 517                     return false;
 518             }
 519             // snprintf return value check
 520             if (snRet < 0)
 521             {
 522                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 523                 return false;
 524             }
 525             else if ((size_t)snRet >= bufferSize)
 526             {
 527                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 528                 return false;
 529             }
 530
 531             break;
 532         case CT_ADAPTER_GATT_BTLE:
 533             snRet = snprintf(buffer, bufferSize, "%s%s%s",
 534                              prefix, address, uri);
 535             // snprintf return value check
 536             if (snRet < 0)
 537             {
 538                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 539                 return false;
 540             }
 541             else if ((size_t)snRet >= bufferSize)
 542             {
 543                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 544                 return false;
 545             }
 546
 547             break;
 548         // TODO: We need to verify tinyDTLS in below cases
 549         case CT_ADAPTER_RFCOMM_BTEDR:
 550             OIC_LOG(ERROR, TAG, "Not supported connectivity adapter.");
 551             return false;
 552             break;
 553         default:
 554             OIC_LOG(ERROR, TAG, "Unknown connectivity adapter.");
 555             return false;
 556     }
 557
 558     return true;
 559 }
 560
 561 /*
 562  * Since security version discovery does not used anymore, disable security version discovery.
 563  * Need to discussion to removing all version discovery related codes.
 564  */
 565 #if 0
 566 static OCStackApplicationResult SecurityVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 567                                 OCClientResponse *clientResponse)
 568 {
 569     if (ctx == NULL)
 570     {
 571         OIC_LOG(ERROR, TAG, "Lost List of device information");
 572         return OC_STACK_KEEP_TRANSACTION;
 573     }
 574     (void)UNUSED;
 575     if (clientResponse)
 576     {
 577         if  (NULL == clientResponse->payload)
 578         {
 579             OIC_LOG(INFO, TAG, "Skiping Null payload");
 580             return OC_STACK_KEEP_TRANSACTION;
 581         }
 582         if (OC_STACK_OK != clientResponse->result)
 583         {
 584             OIC_LOG(INFO, TAG, "Error in response");
 585             return OC_STACK_KEEP_TRANSACTION;
 586         }
 587         else
 588         {
 589             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 590             {
 591                 OIC_LOG(INFO, TAG, "Unknown payload type");
 592                 return OC_STACK_KEEP_TRANSACTION;
 593             }
 594
 595             OicSecVer_t *ptrVer = NULL;
 596             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 597             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 598
 599             OCStackResult res = CBORPayloadToVer(payload, size, &ptrVer);
 600             if ((NULL == ptrVer) && (OC_STACK_OK != res))
 601             {
 602                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 603                 return OC_STACK_KEEP_TRANSACTION;
 604             }
 605             else
 606             {
 607                 OIC_LOG(DEBUG, TAG, "Successfully converted ver cbor to bin.");
 608
 609                 //If this is owend device discovery we have to filter out the responses.
 610                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 611                 res = UpdateSecVersionOfDevice(pDInfo->ppDevicesList, clientResponse->devAddr.addr,
 612                                                          clientResponse->devAddr.port, ptrVer->secv);
 613                 if (OC_STACK_OK != res)
 614                 {
 615                     OIC_LOG(ERROR, TAG, "Error while getting security version.");
 616                     DeleteVerBinData(ptrVer);
 617                     return OC_STACK_KEEP_TRANSACTION;
 618                 }
 619
 620                 OIC_LOG(INFO, TAG, "= Discovered security version =");
 621                 OIC_LOG_V(DEBUG, TAG, "IP %s", clientResponse->devAddr.addr);
 622                 OIC_LOG_V(DEBUG, TAG, "PORT %d", clientResponse->devAddr.port);
 623                 OIC_LOG_V(DEBUG, TAG, "VERSION %s", ptrVer->secv);
 624
 625                 OIC_LOG(INFO, TAG, "Exiting SecVersionDiscoveryHandler.");
 626                 DeleteVerBinData(ptrVer);
 627             }
 628         }
 629     }
 630     else
 631     {
 632         OIC_LOG(INFO, TAG, "Skiping Null response");
 633         return OC_STACK_KEEP_TRANSACTION;
 634     }
 635
 636     return  OC_STACK_DELETE_TRANSACTION;
 637 }
 638 #endif
 639
 640 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 641                                  OCClientResponse *clientResponse)
 642 {
 643     if (ctx == NULL)
 644     {
 645         OIC_LOG(ERROR, TAG, "Lost List of device information");
 646         return OC_STACK_DELETE_TRANSACTION;
 647     }
 648     (void)UNUSED;
 649     if (clientResponse)
 650     {
 651         if  (NULL == clientResponse->payload)
 652         {
 653             OIC_LOG(INFO, TAG, "Skiping Null payload");
 654         }
 655         else
 656         {
 657             if (PAYLOAD_TYPE_DISCOVERY != clientResponse->payload->type)
 658             {
 659                 OIC_LOG(INFO, TAG, "Wrong payload type");
 660                 return OC_STACK_DELETE_TRANSACTION;
 661             }
 662
 663             uint16_t securePort = 0;
 664             OCResourcePayload* resPayload = ((OCDiscoveryPayload*)clientResponse->payload)->resources;
 665
 666             // Use seure port of doxm for OTM and Provision.
 667             while (resPayload)
 668             {
 669                 if (0 == strncmp(resPayload->uri, OIC_RSRC_DOXM_URI, strlen(OIC_RSRC_DOXM_URI)))
 670                 {
 671                     OIC_LOG_V(INFO,TAG,"resPaylod->uri:%s",resPayload->uri);
 672                     OIC_LOG(INFO, TAG, "Found doxm resource.");
 673                     break;
 674                 }
 675                 else
 676                 {
 677                     resPayload = resPayload->next;
 678                 }
 679             }
 680             if (NULL == resPayload)
 681             {
 682                 OIC_LOG(ERROR, TAG, "Can not find doxm resource.");
 683                 return OC_STACK_DELETE_TRANSACTION;
 684             }
 685             if (resPayload && resPayload->secure)
 686             {
 687                 securePort = resPayload->port;
 688             }
 689             else
 690             {
 691                 OIC_LOG(INFO, TAG, "Can not find secure port information.");
 692                 return OC_STACK_DELETE_TRANSACTION;
 693             }
 694 #ifdef __WITH_TLS__
 695             OIC_LOG_V(DEBUG, TAG, "%s: TCP port from discovery = %d", __func__, resPayload->tcpPort);
 696 #endif
 697             DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 698             OCProvisionDev_t *ptr = GetDevice(&pDInfo->pCandidateList,
 699                                                          clientResponse->devAddr.addr,
 700                                                          clientResponse->devAddr.port);
 701             if(!ptr)
 702             {
 703                 OIC_LOG(ERROR, TAG, "Can not find device information in the discovery candidate device list");
 704                 return OC_STACK_DELETE_TRANSACTION;
 705             }
 706
 707             OCStackResult res = UpdateSecurePortOfDevice(&pDInfo->pCandidateList,
 708                                                          clientResponse->devAddr.addr,
 709                                                          clientResponse->devAddr.port,
 710                                                          securePort
 711 #ifdef __WITH_TLS__
 712                                                          ,resPayload->tcpPort
 713 #endif
 714                                                          );
 715             if (OC_STACK_OK != res)
 716             {
 717                 OIC_LOG(ERROR, TAG, "Error while getting secure port.");
 718                 return OC_STACK_DELETE_TRANSACTION;
 719             }
 720
 721             res = MoveDeviceList(pDInfo->ppDevicesList, &pDInfo->pCandidateList, &clientResponse->devAddr);
 722             if(OC_STACK_OK != res)
 723             {
 724                 OIC_LOG(ERROR, TAG, "Error while move the discovered device to list.");
 725                 return OC_STACK_DELETE_TRANSACTION;
 726             }
 727
 728             if(pDInfo->isSingleDiscovery)
 729             {
 730                 pDInfo->isFound = true;
 731             }
 732
 733 /*
 734  * Since security version discovery does not used anymore, disable security version discovery.
 735  * Need to discussion to removing all version discovery related codes.
 736  */
 737 #if 0
 738             res = SecurityVersionDiscovery(pDInfo, clientResponse);
 739             if(OC_STACK_OK != res)
 740             {
 741                 OIC_LOG(ERROR, TAG, "Failed to SecurityVersionDiscovery");
 742                 return OC_STACK_DELETE_TRANSACTION;
 743             }
 744 #endif
 745             OIC_LOG(INFO, TAG, "Exiting SecurePortDiscoveryHandler.");
 746         }
 747
 748         return  OC_STACK_DELETE_TRANSACTION;
 749     }
 750     else
 751     {
 752         OIC_LOG(INFO, TAG, "Skiping Null response");
 753     }
 754
 755     return  OC_STACK_DELETE_TRANSACTION;
 756 }
 757
 758 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 759                                 OCClientResponse *clientResponse)
 760 {
 761     if (ctx == NULL)
 762     {
 763         OIC_LOG(ERROR, TAG, "Lost List of device information");
 764         return OC_STACK_KEEP_TRANSACTION;
 765     }
 766     (void)UNUSED;
 767     if (clientResponse)
 768     {
 769         if  (NULL == clientResponse->payload)
 770         {
 771             OIC_LOG(INFO, TAG, "Skiping Null payload");
 772             return OC_STACK_KEEP_TRANSACTION;
 773         }
 774         if (OC_STACK_OK != clientResponse->result)
 775         {
 776             OIC_LOG(INFO, TAG, "Error in response");
 777             return OC_STACK_KEEP_TRANSACTION;
 778         }
 779         else
 780         {
 781             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 782             {
 783                 OIC_LOG(INFO, TAG, "Unknown payload type");
 784                 return OC_STACK_KEEP_TRANSACTION;
 785             }
 786
 787             OicSecDoxm_t *ptrDoxm = NULL;
 788             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 789             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 790
 791             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 792             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 793             {
 794                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 795                 return OC_STACK_KEEP_TRANSACTION;
 796             }
 797             else
 798             {
 799                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
 800
 801                 //If this is owend device discovery we have to filter out the responses.
 802                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 803                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
 804
 805                 // Get my device ID from doxm resource
 806                 OicUuid_t myId;
 807                 memset(&myId, 0, sizeof(myId));
 808                 OCStackResult res = GetDoxmDeviceID(&myId);
 809                 if(OC_STACK_OK != res)
 810                 {
 811                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
 812                     DeleteDoxmBinData(ptrDoxm);
 813                     return OC_STACK_KEEP_TRANSACTION;
 814                 }
 815
 816                 // If this is owned discovery response but owner is not me then discard it.
 817                 if( (pDInfo->isOwnedDiscovery) &&
 818                     (0 != memcmp(&ptrDoxm->owner.id, &myId.id, sizeof(myId.id))) )
 819                 {
 820                     OIC_LOG(DEBUG, TAG, "Discovered device is not owend by me");
 821                     DeleteDoxmBinData(ptrDoxm);
 822                     return OC_STACK_KEEP_TRANSACTION;
 823                 }
 824
 825                 //if targetId and discovered deviceID are different, discard it
 826                 if ((pDInfo->isSingleDiscovery) &&
 827                     (0 != memcmp(&ptrDoxm->deviceID.id, &pDInfo->targetId->id, sizeof(pDInfo->targetId->id))) )
 828                 {
 829                     OIC_LOG(DEBUG, TAG, "Discovered device is not target device");
 830                     DeleteDoxmBinData(ptrDoxm);
 831                     return OC_STACK_KEEP_TRANSACTION;
 832                 }
 833                 //If self reply, discard it
 834                 if (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id)))
 835                 {
 836                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
 837                     DeleteDoxmBinData(ptrDoxm);
 838                     return OC_STACK_KEEP_TRANSACTION;
 839                 }
 840
 841                 res = AddDevice(ppDevicesList, &clientResponse->devAddr,
 842                         clientResponse->connType, ptrDoxm);
 843                 if (OC_STACK_OK != res)
 844                 {
 845                     OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
 846                     DeleteDoxmBinData(ptrDoxm);
 847                     return OC_STACK_KEEP_TRANSACTION;
 848                 }
 849                 res = SecurePortDiscovery(pDInfo, clientResponse);
 850                 if(OC_STACK_OK != res)
 851                 {
 852                     OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
 853                     DeleteDoxmBinData(ptrDoxm);
 854                     return OC_STACK_KEEP_TRANSACTION;
 855                 }
 856
 857                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
 858             }
 859             return  OC_STACK_KEEP_TRANSACTION;
 860         }
 861     }
 862     else
 863     {
 864         OIC_LOG(INFO, TAG, "Skiping Null response");
 865         return OC_STACK_KEEP_TRANSACTION;
 866     }
 867
 868     return  OC_STACK_DELETE_TRANSACTION;
 869 }
 870
 871 static void DeviceDiscoveryDeleteHandler(void *ctx)
 872 {
 873     OIC_LOG(DEBUG, TAG, "IN DeviceDiscoveryDeleteHandler");
 874     if (NULL == ctx)
 875     {
 876         OIC_LOG(WARNING, TAG, "Not found context in DeviceDiscoveryDeleteHandler");
 877         return;
 878     }
 879
 880     DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 881     if (NULL != pDInfo->pCandidateList)
 882     {
 883         OCProvisionDev_t *pDev = NULL;
 884         LL_FOREACH(pDInfo->pCandidateList, pDev)
 885         {
 886             OIC_LOG_V(DEBUG, TAG, "OCCancel - %s : %d",
 887                             pDev->endpoint.addr, pDev->endpoint.port);
 888             if(OC_STACK_OK !=  OCCancel(pDev->handle,OC_HIGH_QOS,NULL,0))
 889             {
 890                 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 891             }
 892         }
 893         PMDeleteDeviceList(pDInfo->pCandidateList);
 894     }
 895     OIC_LOG(DEBUG, TAG, "OUT DeviceDiscoveryDeleteHandler");
 896 }
 897
 898 /**
 899  * Discover owned/unowned device in the specified endpoint/deviceID.
 900  * It will return the found device even though timeout is not exceeded.
 901  *
 902  * @param[in] waittime           Timeout in seconds
 903  * @param[in] deviceID           deviceID of target device.
 904  * @param[out] ppFoundDevice     OCProvisionDev_t of found device
 905  *
 906  * @return OC_STACK_OK on success otherwise error.\n
 907  *         OC_STACK_INVALID_PARAM when deviceID is NULL or ppFoundDevice is not initailized.
 908  */
 909 OCStackResult PMSingleDeviceDiscovery(unsigned short waittime, const OicUuid_t* deviceID,
 910                                  OCProvisionDev_t **ppFoundDevice)
 911 {
 912     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscovery");
 913
 914     if (NULL != *ppFoundDevice)
 915     {
 916         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 917         return OC_STACK_INVALID_PARAM;
 918     }
 919
 920     if (NULL == deviceID)
 921     {
 922         OIC_LOG(ERROR, TAG, "Invalid device ID");
 923         return OC_STACK_INVALID_PARAM;
 924     }
 925
 926
 927     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 928     if(NULL == pDInfo)
 929     {
 930         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscovery : Memory allocation failed.");
 931         return OC_STACK_NO_MEMORY;
 932     }
 933
 934     pDInfo->ppDevicesList = ppFoundDevice;
 935     pDInfo->pCandidateList = NULL;
 936     pDInfo->isOwnedDiscovery = false;
 937     pDInfo->isSingleDiscovery = true;
 938     pDInfo->isFound = false;
 939     pDInfo->targetId = deviceID;
 940
 941     OCCallbackData cbData;
 942     cbData.cb = &DeviceDiscoveryHandler;
 943     cbData.context = (void *)pDInfo;
 944     cbData.cd = &DeviceDiscoveryDeleteHandler;
 945
 946     OCStackResult res = OC_STACK_ERROR;
 947
 948     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
 949     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "/oic/sec/doxm");
 950
 951     OCDoHandle handle = NULL;
 952     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 953                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 954     if (res != OC_STACK_OK)
 955     {
 956         OIC_LOG(ERROR, TAG, "OCStack resource error");
 957         OICFree(pDInfo);
 958         return res;
 959     }
 960
 961     //Waiting for each response.
 962     res = OC_STACK_OK;
 963     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 964     while (OC_STACK_OK == res && !pDInfo->isFound)
 965     {
 966         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 967
 968         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 969         if (elapsed > waittime)
 970         {
 971             break;
 972         }
 973         res = OCProcess();
 974     }
 975
 976     if(OC_STACK_OK != res)
 977     {
 978         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 979         OICFree(pDInfo);
 980         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 981         if(OC_STACK_OK !=  resCancel)
 982         {
 983             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 984         }
 985         return res;
 986     }
 987
 988     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 989     if (OC_STACK_OK != res)
 990     {
 991         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 992         OICFree(pDInfo);
 993         return res;
 994     }
 995     if (!pDInfo->isFound)
 996     {
 997         res = OC_STACK_TIMEOUT;
 998     }
 999     OICFree(pDInfo);
1000     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscovery");
1001     return res;
1002 }
1003
1004 /**
1005  * Discover owned/unowned devices in the same IP subnet. .
1006  *
1007  * @param[in] waittime      Timeout in seconds.
1008  * @param[in] isOwned       bool flag for owned / unowned discovery
1009  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1010  *
1011  * @return OC_STACK_OK on success otherwise error.
1012  */
1013 OCStackResult PMDeviceDiscovery(unsigned short waittime, bool isOwned, OCProvisionDev_t **ppDevicesList)
1014 {
1015     OIC_LOG(DEBUG, TAG, "IN PMDeviceDiscovery");
1016
1017     if (NULL != *ppDevicesList)
1018     {
1019         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1020         return OC_STACK_INVALID_PARAM;
1021     }
1022
1023     const char DOXM_OWNED_FALSE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=FALSE";
1024     const char DOXM_OWNED_TRUE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=TRUE";
1025
1026     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1027     if(NULL == pDInfo)
1028     {
1029         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1030         return OC_STACK_NO_MEMORY;
1031     }
1032
1033     pDInfo->ppDevicesList = ppDevicesList;
1034     pDInfo->pCandidateList = NULL;
1035     pDInfo->isOwnedDiscovery = isOwned;
1036     pDInfo->isSingleDiscovery = false;
1037     pDInfo->targetId = NULL;
1038
1039     OCCallbackData cbData;
1040     cbData.cb = &DeviceDiscoveryHandler;
1041     cbData.context = (void *)pDInfo;
1042     cbData.cd = &DeviceDiscoveryDeleteHandler;
1043     OCStackResult res = OC_STACK_ERROR;
1044
1045     const char* query = isOwned ? DOXM_OWNED_TRUE_MULTICAST_QUERY :
1046                                   DOXM_OWNED_FALSE_MULTICAST_QUERY;
1047
1048     OCDoHandle handle = NULL;
1049     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1050                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1051     if (res != OC_STACK_OK)
1052     {
1053         OIC_LOG(ERROR, TAG, "OCStack resource error");
1054         OICFree(pDInfo);
1055         return res;
1056     }
1057
1058     //Waiting for each response.
1059     res = PMTimeout(waittime, true);
1060     if(OC_STACK_OK != res)
1061     {
1062         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1063         OICFree(pDInfo);
1064         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1065         if(OC_STACK_OK !=  resCancel)
1066         {
1067             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1068         }
1069         return res;
1070     }
1071     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1072     if (OC_STACK_OK != res)
1073     {
1074         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1075         OICFree(pDInfo);
1076         return res;
1077     }
1078     OIC_LOG(DEBUG, TAG, "OUT PMDeviceDiscovery");
1079     OICFree(pDInfo);
1080     return res;
1081 }
1082
1083 OCStackResult PMSingleDeviceDiscoveryInUnicast(unsigned short waittime, const OicUuid_t* deviceID,
1084                                  const char* hostAddress, OCConnectivityType connType,
1085                                  OCProvisionDev_t **ppFoundDevice)
1086 {
1087     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscoveryInUnicast");
1088
1089     if (NULL != *ppFoundDevice)
1090     {
1091         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1092         return OC_STACK_INVALID_PARAM;
1093     }
1094
1095     if (NULL == deviceID)
1096     {
1097         OIC_LOG(ERROR, TAG, "Invalid device ID");
1098         return OC_STACK_INVALID_PARAM;
1099     }
1100
1101     DiscoveryInfo *pDInfo = (DiscoveryInfo*)OICCalloc(1, sizeof(DiscoveryInfo));
1102     if (NULL == pDInfo)
1103     {
1104         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscoveryInUnicast : Memory allocation failed.");
1105         return OC_STACK_NO_MEMORY;
1106     }
1107
1108     pDInfo->ppDevicesList = ppFoundDevice;
1109     pDInfo->pCandidateList = NULL;
1110     pDInfo->isOwnedDiscovery = false;
1111     pDInfo->isSingleDiscovery = true;
1112     pDInfo->isFound = false;
1113     pDInfo->targetId = deviceID;
1114
1115     OCCallbackData cbData;
1116     cbData.cb = &DeviceDiscoveryHandler;
1117     cbData.context = (void *)pDInfo;
1118     cbData.cd = &DeviceDiscoveryDeleteHandler;
1119
1120     OCStackResult res = OC_STACK_ERROR;
1121
1122     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
1123     if (hostAddress == NULL)
1124     {
1125         hostAddress = "";
1126     }
1127     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "%s/oic/sec/doxm", hostAddress);
1128     connType = connType & CT_MASK_ADAPTER;
1129
1130     OCDoHandle handle = NULL;
1131     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1132             connType, OC_HIGH_QOS, &cbData, NULL, 0);
1133
1134     if (res != OC_STACK_OK)
1135     {
1136         OIC_LOG(ERROR, TAG, "OCStack resource error");
1137         OICFree(pDInfo);
1138         pDInfo = NULL;
1139         return res;
1140     }
1141
1142     res = OC_STACK_OK;
1143     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
1144     while (OC_STACK_OK == res && !pDInfo->isFound)
1145     {
1146         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
1147
1148         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
1149         if (elapsed > waittime)
1150         {
1151             break;
1152         }
1153         res = OCProcess();
1154     }
1155
1156     if (OC_STACK_OK != res)
1157     {
1158         OIC_LOG (ERROR, TAG, "Failed to wait response for secure discovery.");
1159         OICFree(pDInfo);
1160         pDInfo = NULL;
1161         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1162         if (OC_STACK_OK !=  resCancel)
1163         {
1164             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1165         }
1166         return res;
1167     }
1168
1169     res = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1170     if (OC_STACK_OK != res)
1171     {
1172         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1173         OICFree(pDInfo);
1174         pDInfo = NULL;
1175         return res;
1176     }
1177     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscoveryInUnicast");
1178
1179     if (!pDInfo->isFound)
1180     {
1181         res = OC_STACK_TIMEOUT;
1182     }
1183
1184     OICFree(pDInfo);
1185     pDInfo = NULL;
1186     return res;
1187 }
1188
1189 #ifdef MULTIPLE_OWNER
1190 static OCStackApplicationResult MOTDeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
1191                                 OCClientResponse *clientResponse)
1192 {
1193     if (ctx == NULL)
1194     {
1195         OIC_LOG(ERROR, TAG, "Lost List of device information");
1196         return OC_STACK_KEEP_TRANSACTION;
1197     }
1198     (void)UNUSED;
1199     if (clientResponse)
1200     {
1201         if  (NULL == clientResponse->payload)
1202         {
1203             OIC_LOG(INFO, TAG, "Skipping Null payload");
1204             return OC_STACK_KEEP_TRANSACTION;
1205         }
1206         if (OC_STACK_OK != clientResponse->result)
1207         {
1208             OIC_LOG(INFO, TAG, "Error in response");
1209             return OC_STACK_KEEP_TRANSACTION;
1210         }
1211         else
1212         {
1213             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
1214             {
1215                 OIC_LOG(INFO, TAG, "Unknown payload type");
1216                 return OC_STACK_KEEP_TRANSACTION;
1217             }
1218
1219             OicSecDoxm_t *ptrDoxm = NULL;
1220             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1221             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1222
1223             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
1224             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
1225             {
1226                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
1227                 return OC_STACK_KEEP_TRANSACTION;
1228             }
1229             else
1230             {
1231                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
1232
1233                 //If this is owend device discovery we have to filter out the responses.
1234                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
1235                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
1236
1237                 // Get my device ID from doxm resource
1238                 OicUuid_t myId;
1239                 memset(&myId, 0, sizeof(myId));
1240                 OCStackResult res = GetDoxmDevOwnerId(&myId);
1241                 if(OC_STACK_OK != res)
1242                 {
1243                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
1244                     DeleteDoxmBinData(ptrDoxm);
1245                     return OC_STACK_KEEP_TRANSACTION;
1246                 }
1247
1248                 res = GetDoxmDeviceID(&myId);
1249                 if(OC_STACK_OK != res)
1250                 {
1251                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
1252                     DeleteDoxmBinData(ptrDoxm);
1253                     return OC_STACK_KEEP_TRANSACTION;
1254                 }
1255                 //if this is owned discovery and this is PT's reply, discard it
1256                 if((pDInfo->isOwnedDiscovery) &&
1257                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
1258                 {
1259                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
1260                     DeleteDoxmBinData(ptrDoxm);
1261                     return OC_STACK_KEEP_TRANSACTION;
1262                 }
1263
1264                 if(pDInfo->isOwnedDiscovery)
1265                 {
1266                     OicSecSubOwner_t* subOwner = NULL;
1267                     LL_FOREACH(ptrDoxm->subOwners, subOwner)
1268                     {
1269                         if(memcmp(myId.id, subOwner->uuid.id, sizeof(myId.id)) == 0)
1270                         {
1271                             break;
1272                         }
1273                     }
1274
1275                     if(subOwner)
1276                     {
1277                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1278                                 clientResponse->connType, ptrDoxm);
1279                         if (OC_STACK_OK != res)
1280                         {
1281                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1282                             DeleteDoxmBinData(ptrDoxm);
1283                             return OC_STACK_KEEP_TRANSACTION;
1284                         }
1285
1286                         res = SecurePortDiscovery(pDInfo, clientResponse);
1287                         if(OC_STACK_OK != res)
1288                         {
1289                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1290                             DeleteDoxmBinData(ptrDoxm);
1291                             return OC_STACK_KEEP_TRANSACTION;
1292                         }
1293                     }
1294                     else
1295                     {
1296                         OIC_LOG(ERROR, TAG, "discarding device's reply, because not a SubOwner.");
1297                         DeleteDoxmBinData(ptrDoxm);
1298                         return OC_STACK_KEEP_TRANSACTION;
1299                     }
1300                 }
1301                 else
1302                 {
1303                     if(ptrDoxm->mom && OIC_MULTIPLE_OWNER_DISABLE != ptrDoxm->mom->mode)
1304                     {
1305                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1306                                 clientResponse->connType, ptrDoxm);
1307                         if (OC_STACK_OK != res)
1308                         {
1309                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1310                             DeleteDoxmBinData(ptrDoxm);
1311                             return OC_STACK_KEEP_TRANSACTION;
1312                         }
1313
1314                         res = SecurePortDiscovery(pDInfo, clientResponse);
1315                         if(OC_STACK_OK != res)
1316                         {
1317                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1318                             DeleteDoxmBinData(ptrDoxm);
1319                             return OC_STACK_KEEP_TRANSACTION;
1320                         }
1321                     }
1322                     else
1323                     {
1324                         OIC_LOG(ERROR, TAG, "discarding mom disabled device's reply");
1325                         DeleteDoxmBinData(ptrDoxm);
1326                         return OC_STACK_KEEP_TRANSACTION;
1327                     }
1328                 }
1329
1330                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
1331             }
1332
1333             return  OC_STACK_KEEP_TRANSACTION;
1334         }
1335     }
1336     else
1337     {
1338         OIC_LOG(INFO, TAG, "Skiping Null response");
1339         return OC_STACK_KEEP_TRANSACTION;
1340     }
1341
1342     return  OC_STACK_DELETE_TRANSACTION;
1343 }
1344
1345
1346 /**
1347  * Discover multiple OTM enabled devices in the same IP subnet.
1348  *
1349  * @param[in] waittime      Timeout in seconds.
1350  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1351  *
1352  * @return OC_STACK_OK on success otherwise error.
1353  */
1354 OCStackResult PMMultipleOwnerDeviceDiscovery(unsigned short waittime, bool isMultipleOwned, OCProvisionDev_t **ppDevicesList)
1355 {
1356     OIC_LOG(DEBUG, TAG, "IN PMMultipleOwnerEnabledDeviceDiscovery");
1357
1358     if (NULL != *ppDevicesList)
1359     {
1360         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1361         return OC_STACK_INVALID_PARAM;
1362     }
1363
1364     char DOXM_MOM_ENABLE_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1365     char DOXM_MULTIPLE_OWNED_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1366     snprintf(DOXM_MOM_ENABLE_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1367              "%s?%s=%d&%s=TRUE",
1368              OIC_RSRC_DOXM_URI, OIC_JSON_MOM_NAME, OIC_MULTIPLE_OWNER_DISABLE,
1369              OIC_JSON_OWNED_NAME);
1370     snprintf(DOXM_MULTIPLE_OWNED_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1371              "%s?%s=TRUE",
1372              OIC_RSRC_DOXM_URI, OIC_JSON_OWNED_NAME);
1373
1374     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1375     if(NULL == pDInfo)
1376     {
1377         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1378         return OC_STACK_NO_MEMORY;
1379     }
1380
1381     pDInfo->ppDevicesList = ppDevicesList;
1382     pDInfo->pCandidateList = NULL;
1383     pDInfo->isOwnedDiscovery = isMultipleOwned;
1384
1385     OCCallbackData cbData;
1386     cbData.cb = &MOTDeviceDiscoveryHandler;
1387     cbData.context = (void *)pDInfo;
1388     cbData.cd = NULL;
1389     OCStackResult res = OC_STACK_ERROR;
1390
1391     const char* query = isMultipleOwned ? DOXM_MULTIPLE_OWNED_MULTICAST_QUERY :
1392                                           DOXM_MOM_ENABLE_MULTICAST_QUERY;
1393
1394     OCDoHandle handle = NULL;
1395     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1396                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1397     if (res != OC_STACK_OK)
1398     {
1399         OIC_LOG(ERROR, TAG, "OCStack resource error");
1400         OICFree(pDInfo);
1401         return res;
1402     }
1403
1404     //Waiting for each response.
1405     res = PMTimeout(waittime, true);
1406     if(OC_STACK_OK != res)
1407     {
1408         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1409         OICFree(pDInfo);
1410         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1411         if(OC_STACK_OK !=  resCancel)
1412         {
1413             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1414         }
1415         return res;
1416     }
1417     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1418     if (OC_STACK_OK != res)
1419     {
1420         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1421         OICFree(pDInfo);
1422         return res;
1423     }
1424     OIC_LOG(DEBUG, TAG, "OUT PMMultipleOwnerEnabledDeviceDiscovery");
1425     OICFree(pDInfo);
1426     return res;
1427 }
1428
1429 #endif //MULTIPLE_OWNER
1430
1431 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
1432                                          const OCClientResponse *clientResponse)
1433 {
1434     OIC_LOG(DEBUG, TAG, "IN SecurePortDiscovery");
1435
1436     if(NULL == discoveryInfo || NULL == clientResponse)
1437     {
1438         return OC_STACK_INVALID_PARAM;
1439     }
1440
1441     OCProvisionDev_t *pDev = GetDevice(&discoveryInfo->pCandidateList,
1442                         clientResponse->devAddr.addr, clientResponse->devAddr.port);
1443     if(NULL == pDev)
1444     {
1445         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to get device");
1446         return OC_STACK_ERROR;
1447     }
1448
1449     //Try to the unicast discovery to getting secure port
1450     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1451     if(!PMGenerateQuery(false,
1452                         pDev->endpoint.addr, pDev->endpoint.port,
1453                         pDev->connType,
1454                         query, sizeof(query), OC_RSRVD_WELL_KNOWN_URI))
1455     {
1456         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to generate query");
1457         return OC_STACK_ERROR;
1458     }
1459     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1460
1461     // Set filter query with rt=oic.r.doxm
1462     const char RES_DOXM_QUERY_FMT[] = "%s?%s=%s";
1463     char uri[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1464     snprintf(uri, sizeof(uri), RES_DOXM_QUERY_FMT, query,
1465             OC_RSRVD_RESOURCE_TYPE, OIC_RSRC_TYPE_SEC_DOXM);
1466
1467     OIC_LOG_V(DEBUG, TAG, "URI=%s", uri);
1468
1469     OCCallbackData cbData;
1470     cbData.cb = &SecurePortDiscoveryHandler;
1471     cbData.context = (void*)discoveryInfo;
1472     cbData.cd = NULL;
1473     OCStackResult ret = OCDoResource(&pDev->handle, OC_REST_DISCOVER, uri, 0, 0,
1474             pDev->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1475     if(OC_STACK_OK != ret)
1476     {
1477         OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
1478         return ret;
1479     }
1480     else
1481     {
1482         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1483     }
1484
1485     OIC_LOG(DEBUG, TAG, "OUT SecurePortDiscovery");
1486
1487     return ret;
1488 }
1489
1490 /*
1491  * Since security version discovery does not used anymore, disable security version discovery.
1492  * Need to discussion to removing all version discovery related codes.
1493  */
1494 #if 0
1495 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
1496                                               const OCClientResponse *clientResponse)
1497 {
1498     OIC_LOG(DEBUG, TAG, "IN SecurityVersionDiscovery");
1499
1500     if(NULL == discoveryInfo || NULL == clientResponse)
1501     {
1502         return OC_STACK_INVALID_PARAM;
1503     }
1504
1505     //Try to the unicast discovery to getting security version
1506     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1507     if(!PMGenerateQuery(false,
1508                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1509                         clientResponse->connType,
1510                         query, sizeof(query), OIC_RSRC_VER_URI))
1511     {
1512         OIC_LOG(ERROR, TAG, "SecurityVersionDiscovery : Failed to generate query");
1513         return OC_STACK_ERROR;
1514     }
1515     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1516
1517     OCCallbackData cbData;
1518     cbData.cb = &SecurityVersionDiscoveryHandler;
1519     cbData.context = (void*)discoveryInfo;
1520     cbData.cd = NULL;
1521     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1522             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1523     if(OC_STACK_OK != ret)
1524     {
1525         OIC_LOG(ERROR, TAG, "Failed to Security Version Discovery");
1526         return ret;
1527     }
1528     else
1529     {
1530         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1531     }
1532
1533     OIC_LOG(DEBUG, TAG, "OUT SecurityVersionDiscovery");
1534
1535     return ret;
1536 }
1537 #endif
1538
1539 /**
1540  * Function to print OCProvisionDev_t for debug purpose.
1541  *
1542  * @param[in] pDev Pointer to OCProvisionDev_t. It's information will be printed by OIC_LOG_XX
1543  *
1544  */
1545 void PMPrintOCProvisionDev(const OCProvisionDev_t* pDev)
1546 {
1547     if (pDev)
1548     {
1549         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t Information +++++");
1550         OIC_LOG_V(DEBUG, TAG, "IP %s", pDev->endpoint.addr);
1551         OIC_LOG_V(DEBUG, TAG, "PORT %d", pDev->endpoint.port);
1552         OIC_LOG_V(DEBUG, TAG, "S-PORT %d", pDev->securePort);
1553         OIC_LOG(DEBUG, TAG, "++++++++++++++++++++++++++++++++++++++++");
1554     }
1555     else
1556     {
1557         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t is NULL +++++");
1558     }
1559 }
1560
1561 bool PMDeleteFromUUIDList(OCUuidList_t **pUuidList, OicUuid_t *targetId)
1562 {
1563     if(*pUuidList == NULL || targetId == NULL)
1564     {
1565         return false;
1566     }
1567     OCUuidList_t *tmp1 = NULL,*tmp2=NULL;
1568     LL_FOREACH_SAFE(*pUuidList, tmp1, tmp2)
1569     {
1570         if(0 == memcmp(tmp1->dev.id, targetId->id, sizeof(targetId->id)))
1571         {
1572             LL_DELETE(*pUuidList, tmp1);
1573             OICFree(tmp1);
1574             return true;
1575         }
1576     }
1577     return false;
1578 }