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
 699             if(pDInfo->isSingleDiscovery && pDInfo->isFound)
 700             {
 701                 OIC_LOG(INFO, TAG, "Device is already founded at Single mode.");
 702                 return OC_STACK_DELETE_TRANSACTION;
 703             }
 704
 705             OCProvisionDev_t *ptr = GetDevice(&pDInfo->pCandidateList,
 706                                                          clientResponse->devAddr.addr,
 707                                                          clientResponse->devAddr.port);
 708             if(!ptr)
 709             {
 710                 OIC_LOG(ERROR, TAG, "Can not find device information in the discovery candidate device list");
 711                 return OC_STACK_DELETE_TRANSACTION;
 712             }
 713
 714             OCStackResult res = UpdateSecurePortOfDevice(&pDInfo->pCandidateList,
 715                                                          clientResponse->devAddr.addr,
 716                                                          clientResponse->devAddr.port,
 717                                                          securePort
 718 #ifdef __WITH_TLS__
 719                                                          ,resPayload->tcpPort
 720 #endif
 721                                                          );
 722             if (OC_STACK_OK != res)
 723             {
 724                 OIC_LOG(ERROR, TAG, "Error while getting secure port.");
 725                 return OC_STACK_DELETE_TRANSACTION;
 726             }
 727
 728             res = MoveDeviceList(pDInfo->ppDevicesList, &pDInfo->pCandidateList, &clientResponse->devAddr);
 729             if(OC_STACK_OK != res)
 730             {
 731                 OIC_LOG(ERROR, TAG, "Error while move the discovered device to list.");
 732                 return OC_STACK_DELETE_TRANSACTION;
 733             }
 734
 735             if(pDInfo->isSingleDiscovery)
 736             {
 737                 pDInfo->isFound = true;
 738             }
 739
 740 /*
 741  * Since security version discovery does not used anymore, disable security version discovery.
 742  * Need to discussion to removing all version discovery related codes.
 743  */
 744 #if 0
 745             res = SecurityVersionDiscovery(pDInfo, clientResponse);
 746             if(OC_STACK_OK != res)
 747             {
 748                 OIC_LOG(ERROR, TAG, "Failed to SecurityVersionDiscovery");
 749                 return OC_STACK_DELETE_TRANSACTION;
 750             }
 751 #endif
 752             OIC_LOG(INFO, TAG, "Exiting SecurePortDiscoveryHandler.");
 753         }
 754
 755         return  OC_STACK_DELETE_TRANSACTION;
 756     }
 757     else
 758     {
 759         OIC_LOG(INFO, TAG, "Skiping Null response");
 760     }
 761
 762     return  OC_STACK_DELETE_TRANSACTION;
 763 }
 764
 765 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 766                                 OCClientResponse *clientResponse)
 767 {
 768     if (ctx == NULL)
 769     {
 770         OIC_LOG(ERROR, TAG, "Lost List of device information");
 771         return OC_STACK_KEEP_TRANSACTION;
 772     }
 773     (void)UNUSED;
 774     if (clientResponse)
 775     {
 776         if  (NULL == clientResponse->payload)
 777         {
 778             OIC_LOG(INFO, TAG, "Skiping Null payload");
 779             return OC_STACK_KEEP_TRANSACTION;
 780         }
 781         if (OC_STACK_OK != clientResponse->result)
 782         {
 783             OIC_LOG(INFO, TAG, "Error in response");
 784             return OC_STACK_KEEP_TRANSACTION;
 785         }
 786         else
 787         {
 788             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 789             {
 790                 OIC_LOG(INFO, TAG, "Unknown payload type");
 791                 return OC_STACK_KEEP_TRANSACTION;
 792             }
 793
 794             OicSecDoxm_t *ptrDoxm = NULL;
 795             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 796             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 797
 798             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 799             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 800             {
 801                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 802                 return OC_STACK_KEEP_TRANSACTION;
 803             }
 804             else
 805             {
 806                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
 807
 808                 //If this is owend device discovery we have to filter out the responses.
 809                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 810                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
 811
 812                 // Get my device ID from doxm resource
 813                 OicUuid_t myId;
 814                 memset(&myId, 0, sizeof(myId));
 815                 OCStackResult res = GetDoxmDeviceID(&myId);
 816                 if(OC_STACK_OK != res)
 817                 {
 818                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
 819                     DeleteDoxmBinData(ptrDoxm);
 820                     return OC_STACK_KEEP_TRANSACTION;
 821                 }
 822
 823                 // If this is owned discovery response but owner is not me then discard it.
 824                 if( (pDInfo->isOwnedDiscovery) &&
 825                     (0 != memcmp(&ptrDoxm->owner.id, &myId.id, sizeof(myId.id))) )
 826                 {
 827                     OIC_LOG(DEBUG, TAG, "Discovered device is not owend by me");
 828                     DeleteDoxmBinData(ptrDoxm);
 829                     return OC_STACK_KEEP_TRANSACTION;
 830                 }
 831
 832                 //if targetId and discovered deviceID are different, discard it
 833                 if ((pDInfo->isSingleDiscovery) &&
 834                     (0 != memcmp(&ptrDoxm->deviceID.id, &pDInfo->targetId->id, sizeof(pDInfo->targetId->id))) )
 835                 {
 836                     OIC_LOG(DEBUG, TAG, "Discovered device is not target device");
 837                     DeleteDoxmBinData(ptrDoxm);
 838                     return OC_STACK_KEEP_TRANSACTION;
 839                 }
 840                 //If self reply, discard it
 841                 if (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id)))
 842                 {
 843                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
 844                     DeleteDoxmBinData(ptrDoxm);
 845                     return OC_STACK_KEEP_TRANSACTION;
 846                 }
 847
 848                 res = AddDevice(ppDevicesList, &clientResponse->devAddr,
 849                         clientResponse->connType, ptrDoxm);
 850                 if (OC_STACK_OK != res)
 851                 {
 852                     OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
 853                     DeleteDoxmBinData(ptrDoxm);
 854                     return OC_STACK_KEEP_TRANSACTION;
 855                 }
 856                 res = SecurePortDiscovery(pDInfo, clientResponse);
 857                 if(OC_STACK_OK != res)
 858                 {
 859                     OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
 860                     DeleteDoxmBinData(ptrDoxm);
 861                     return OC_STACK_KEEP_TRANSACTION;
 862                 }
 863
 864                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
 865             }
 866             return  OC_STACK_KEEP_TRANSACTION;
 867         }
 868     }
 869     else
 870     {
 871         OIC_LOG(INFO, TAG, "Skiping Null response");
 872         return OC_STACK_KEEP_TRANSACTION;
 873     }
 874
 875     return  OC_STACK_DELETE_TRANSACTION;
 876 }
 877
 878 static void DeviceDiscoveryDeleteHandler(void *ctx)
 879 {
 880     OIC_LOG(DEBUG, TAG, "IN DeviceDiscoveryDeleteHandler");
 881     if (NULL == ctx)
 882     {
 883         OIC_LOG(WARNING, TAG, "Not found context in DeviceDiscoveryDeleteHandler");
 884         return;
 885     }
 886
 887     DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 888     if (NULL != pDInfo->pCandidateList)
 889     {
 890         OCProvisionDev_t *pDev = NULL;
 891         LL_FOREACH(pDInfo->pCandidateList, pDev)
 892         {
 893             OIC_LOG_V(DEBUG, TAG, "OCCancel - %s : %d",
 894                             pDev->endpoint.addr, pDev->endpoint.port);
 895             if(OC_STACK_OK !=  OCCancel(pDev->handle,OC_HIGH_QOS,NULL,0))
 896             {
 897                 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 898             }
 899         }
 900         PMDeleteDeviceList(pDInfo->pCandidateList);
 901     }
 902     OIC_LOG(DEBUG, TAG, "OUT DeviceDiscoveryDeleteHandler");
 903 }
 904
 905 /**
 906  * Discover owned/unowned device in the specified endpoint/deviceID.
 907  * It will return the found device even though timeout is not exceeded.
 908  *
 909  * @param[in] waittime           Timeout in seconds
 910  * @param[in] deviceID           deviceID of target device.
 911  * @param[out] ppFoundDevice     OCProvisionDev_t of found device
 912  *
 913  * @return OC_STACK_OK on success otherwise error.\n
 914  *         OC_STACK_INVALID_PARAM when deviceID is NULL or ppFoundDevice is not initailized.
 915  */
 916 OCStackResult PMSingleDeviceDiscovery(unsigned short waittime, const OicUuid_t* deviceID,
 917                                  OCProvisionDev_t **ppFoundDevice)
 918 {
 919     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscovery");
 920
 921     if (NULL != *ppFoundDevice)
 922     {
 923         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 924         return OC_STACK_INVALID_PARAM;
 925     }
 926
 927     if (NULL == deviceID)
 928     {
 929         OIC_LOG(ERROR, TAG, "Invalid device ID");
 930         return OC_STACK_INVALID_PARAM;
 931     }
 932
 933
 934     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 935     if(NULL == pDInfo)
 936     {
 937         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscovery : Memory allocation failed.");
 938         return OC_STACK_NO_MEMORY;
 939     }
 940
 941     pDInfo->ppDevicesList = ppFoundDevice;
 942     pDInfo->pCandidateList = NULL;
 943     pDInfo->isOwnedDiscovery = false;
 944     pDInfo->isSingleDiscovery = true;
 945     pDInfo->isFound = false;
 946     pDInfo->targetId = deviceID;
 947
 948     OCCallbackData cbData;
 949     cbData.cb = &DeviceDiscoveryHandler;
 950     cbData.context = (void *)pDInfo;
 951     cbData.cd = &DeviceDiscoveryDeleteHandler;
 952
 953     OCStackResult res = OC_STACK_ERROR;
 954
 955     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
 956     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "/oic/sec/doxm");
 957
 958     OCDoHandle handle = NULL;
 959     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 960                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 961     if (res != OC_STACK_OK)
 962     {
 963         OIC_LOG(ERROR, TAG, "OCStack resource error");
 964         OICFree(pDInfo);
 965         return res;
 966     }
 967
 968     //Waiting for each response.
 969     res = OC_STACK_OK;
 970     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 971     while (OC_STACK_OK == res && !pDInfo->isFound)
 972     {
 973         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 974
 975         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 976         if (elapsed > waittime)
 977         {
 978             break;
 979         }
 980         res = OCProcess();
 981     }
 982
 983     if(OC_STACK_OK != res)
 984     {
 985         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 986         OICFree(pDInfo);
 987         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 988         if(OC_STACK_OK !=  resCancel)
 989         {
 990             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 991         }
 992         return res;
 993     }
 994
 995     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 996     if (OC_STACK_OK != res)
 997     {
 998         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 999         OICFree(pDInfo);
1000         return res;
1001     }
1002     if (!pDInfo->isFound)
1003     {
1004         res = OC_STACK_TIMEOUT;
1005     }
1006     OICFree(pDInfo);
1007     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscovery");
1008     return res;
1009 }
1010
1011 /**
1012  * Discover owned/unowned devices in the same IP subnet. .
1013  *
1014  * @param[in] waittime      Timeout in seconds.
1015  * @param[in] isOwned       bool flag for owned / unowned discovery
1016  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1017  *
1018  * @return OC_STACK_OK on success otherwise error.
1019  */
1020 OCStackResult PMDeviceDiscovery(unsigned short waittime, bool isOwned, OCProvisionDev_t **ppDevicesList)
1021 {
1022     OIC_LOG(DEBUG, TAG, "IN PMDeviceDiscovery");
1023
1024     if (NULL != *ppDevicesList)
1025     {
1026         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1027         return OC_STACK_INVALID_PARAM;
1028     }
1029
1030     const char DOXM_OWNED_FALSE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=FALSE";
1031     const char DOXM_OWNED_TRUE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=TRUE";
1032
1033     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1034     if(NULL == pDInfo)
1035     {
1036         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1037         return OC_STACK_NO_MEMORY;
1038     }
1039
1040     pDInfo->ppDevicesList = ppDevicesList;
1041     pDInfo->pCandidateList = NULL;
1042     pDInfo->isOwnedDiscovery = isOwned;
1043     pDInfo->isSingleDiscovery = false;
1044     pDInfo->targetId = NULL;
1045
1046     OCCallbackData cbData;
1047     cbData.cb = &DeviceDiscoveryHandler;
1048     cbData.context = (void *)pDInfo;
1049     cbData.cd = &DeviceDiscoveryDeleteHandler;
1050     OCStackResult res = OC_STACK_ERROR;
1051
1052     const char* query = isOwned ? DOXM_OWNED_TRUE_MULTICAST_QUERY :
1053                                   DOXM_OWNED_FALSE_MULTICAST_QUERY;
1054
1055     OCDoHandle handle = NULL;
1056     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1057                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1058     if (res != OC_STACK_OK)
1059     {
1060         OIC_LOG(ERROR, TAG, "OCStack resource error");
1061         OICFree(pDInfo);
1062         pDInfo = NULL;
1063         return res;
1064     }
1065
1066     //Waiting for each response.
1067     res = PMTimeout(waittime, true);
1068     if(OC_STACK_OK != res)
1069     {
1070         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1071         OICFree(pDInfo);
1072         pDInfo = NULL;
1073         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1074         if(OC_STACK_OK !=  resCancel)
1075         {
1076             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1077         }
1078         return res;
1079     }
1080     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1081     if (OC_STACK_OK != res)
1082     {
1083         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1084         OICFree(pDInfo);
1085         pDInfo = NULL;
1086         return res;
1087     }
1088     OIC_LOG(DEBUG, TAG, "OUT PMDeviceDiscovery");
1089     OICFree(pDInfo);
1090     pDInfo = NULL;
1091     return res;
1092 }
1093
1094 OCStackResult PMSingleDeviceDiscoveryInUnicast(unsigned short waittime, const OicUuid_t* deviceID,
1095                                  const char* hostAddress, OCConnectivityType connType,
1096                                  OCProvisionDev_t **ppFoundDevice)
1097 {
1098     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscoveryInUnicast");
1099
1100     if (NULL != *ppFoundDevice)
1101     {
1102         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1103         return OC_STACK_INVALID_PARAM;
1104     }
1105
1106     if (NULL == deviceID)
1107     {
1108         OIC_LOG(ERROR, TAG, "Invalid device ID");
1109         return OC_STACK_INVALID_PARAM;
1110     }
1111
1112     DiscoveryInfo *pDInfo = (DiscoveryInfo*)OICCalloc(1, sizeof(DiscoveryInfo));
1113     if (NULL == pDInfo)
1114     {
1115         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscoveryInUnicast : Memory allocation failed.");
1116         return OC_STACK_NO_MEMORY;
1117     }
1118
1119     pDInfo->ppDevicesList = ppFoundDevice;
1120     pDInfo->pCandidateList = NULL;
1121     pDInfo->isOwnedDiscovery = false;
1122     pDInfo->isSingleDiscovery = true;
1123     pDInfo->isFound = false;
1124     pDInfo->targetId = deviceID;
1125
1126     OCCallbackData cbData;
1127     cbData.cb = &DeviceDiscoveryHandler;
1128     cbData.context = (void *)pDInfo;
1129     cbData.cd = &DeviceDiscoveryDeleteHandler;
1130
1131     OCStackResult res = OC_STACK_ERROR;
1132
1133     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
1134     if (hostAddress == NULL)
1135     {
1136         hostAddress = "";
1137     }
1138     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "%s/oic/sec/doxm", hostAddress);
1139     connType = connType & CT_MASK_ADAPTER;
1140
1141     OCDoHandle handle = NULL;
1142     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1143             connType, OC_HIGH_QOS, &cbData, NULL, 0);
1144
1145     if (res != OC_STACK_OK)
1146     {
1147         OIC_LOG(ERROR, TAG, "OCStack resource error");
1148         OICFree(pDInfo);
1149         pDInfo = NULL;
1150         return res;
1151     }
1152
1153     res = OC_STACK_OK;
1154     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
1155     while (OC_STACK_OK == res && !pDInfo->isFound)
1156     {
1157         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
1158
1159         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
1160         if (elapsed > waittime)
1161         {
1162             break;
1163         }
1164         res = OCProcess();
1165     }
1166
1167     if (OC_STACK_OK != res)
1168     {
1169         OIC_LOG (ERROR, TAG, "Failed to wait response for secure discovery.");
1170         OICFree(pDInfo);
1171         pDInfo = NULL;
1172         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1173         if (OC_STACK_OK !=  resCancel)
1174         {
1175             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1176         }
1177         return res;
1178     }
1179
1180     res = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1181     if (OC_STACK_OK != res)
1182     {
1183         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1184         OICFree(pDInfo);
1185         pDInfo = NULL;
1186         return res;
1187     }
1188     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscoveryInUnicast");
1189
1190     if (!pDInfo->isFound)
1191     {
1192         res = OC_STACK_TIMEOUT;
1193     }
1194
1195     OICFree(pDInfo);
1196     pDInfo = NULL;
1197     return res;
1198 }
1199
1200 #ifdef MULTIPLE_OWNER
1201 static OCStackApplicationResult MOTDeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
1202                                 OCClientResponse *clientResponse)
1203 {
1204     if (ctx == NULL)
1205     {
1206         OIC_LOG(ERROR, TAG, "Lost List of device information");
1207         return OC_STACK_KEEP_TRANSACTION;
1208     }
1209     (void)UNUSED;
1210     if (clientResponse)
1211     {
1212         if  (NULL == clientResponse->payload)
1213         {
1214             OIC_LOG(INFO, TAG, "Skipping Null payload");
1215             return OC_STACK_KEEP_TRANSACTION;
1216         }
1217         if (OC_STACK_OK != clientResponse->result)
1218         {
1219             OIC_LOG(INFO, TAG, "Error in response");
1220             return OC_STACK_KEEP_TRANSACTION;
1221         }
1222         else
1223         {
1224             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
1225             {
1226                 OIC_LOG(INFO, TAG, "Unknown payload type");
1227                 return OC_STACK_KEEP_TRANSACTION;
1228             }
1229
1230             OicSecDoxm_t *ptrDoxm = NULL;
1231             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1232             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1233
1234             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
1235             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
1236             {
1237                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
1238                 return OC_STACK_KEEP_TRANSACTION;
1239             }
1240             else
1241             {
1242                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
1243
1244                 //If this is owend device discovery we have to filter out the responses.
1245                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
1246                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
1247
1248                 // Get my device ID from doxm resource
1249                 OicUuid_t myId;
1250                 memset(&myId, 0, sizeof(myId));
1251                 OCStackResult res = GetDoxmDevOwnerId(&myId);
1252                 if(OC_STACK_OK != res)
1253                 {
1254                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
1255                     DeleteDoxmBinData(ptrDoxm);
1256                     return OC_STACK_KEEP_TRANSACTION;
1257                 }
1258
1259                 res = GetDoxmDeviceID(&myId);
1260                 if(OC_STACK_OK != res)
1261                 {
1262                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
1263                     DeleteDoxmBinData(ptrDoxm);
1264                     return OC_STACK_KEEP_TRANSACTION;
1265                 }
1266                 //if this is owned discovery and this is PT's reply, discard it
1267                 if((pDInfo->isOwnedDiscovery) &&
1268                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
1269                 {
1270                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
1271                     DeleteDoxmBinData(ptrDoxm);
1272                     return OC_STACK_KEEP_TRANSACTION;
1273                 }
1274
1275                 if(pDInfo->isOwnedDiscovery)
1276                 {
1277                     OicSecSubOwner_t* subOwner = NULL;
1278                     LL_FOREACH(ptrDoxm->subOwners, subOwner)
1279                     {
1280                         if(memcmp(myId.id, subOwner->uuid.id, sizeof(myId.id)) == 0)
1281                         {
1282                             break;
1283                         }
1284                     }
1285
1286                     if(subOwner)
1287                     {
1288                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1289                                 clientResponse->connType, ptrDoxm);
1290                         if (OC_STACK_OK != res)
1291                         {
1292                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1293                             DeleteDoxmBinData(ptrDoxm);
1294                             return OC_STACK_KEEP_TRANSACTION;
1295                         }
1296
1297                         res = SecurePortDiscovery(pDInfo, clientResponse);
1298                         if(OC_STACK_OK != res)
1299                         {
1300                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1301                             DeleteDoxmBinData(ptrDoxm);
1302                             return OC_STACK_KEEP_TRANSACTION;
1303                         }
1304                     }
1305                     else
1306                     {
1307                         OIC_LOG(ERROR, TAG, "discarding device's reply, because not a SubOwner.");
1308                         DeleteDoxmBinData(ptrDoxm);
1309                         return OC_STACK_KEEP_TRANSACTION;
1310                     }
1311                 }
1312                 else
1313                 {
1314                     if(ptrDoxm->mom && OIC_MULTIPLE_OWNER_DISABLE != ptrDoxm->mom->mode)
1315                     {
1316                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1317                                 clientResponse->connType, ptrDoxm);
1318                         if (OC_STACK_OK != res)
1319                         {
1320                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1321                             DeleteDoxmBinData(ptrDoxm);
1322                             return OC_STACK_KEEP_TRANSACTION;
1323                         }
1324
1325                         res = SecurePortDiscovery(pDInfo, clientResponse);
1326                         if(OC_STACK_OK != res)
1327                         {
1328                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1329                             DeleteDoxmBinData(ptrDoxm);
1330                             return OC_STACK_KEEP_TRANSACTION;
1331                         }
1332                     }
1333                     else
1334                     {
1335                         OIC_LOG(ERROR, TAG, "discarding mom disabled device's reply");
1336                         DeleteDoxmBinData(ptrDoxm);
1337                         return OC_STACK_KEEP_TRANSACTION;
1338                     }
1339                 }
1340
1341                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
1342             }
1343
1344             return  OC_STACK_KEEP_TRANSACTION;
1345         }
1346     }
1347     else
1348     {
1349         OIC_LOG(INFO, TAG, "Skiping Null response");
1350         return OC_STACK_KEEP_TRANSACTION;
1351     }
1352
1353     return  OC_STACK_DELETE_TRANSACTION;
1354 }
1355
1356
1357 /**
1358  * Discover multiple OTM enabled devices in the same IP subnet.
1359  *
1360  * @param[in] waittime      Timeout in seconds.
1361  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1362  *
1363  * @return OC_STACK_OK on success otherwise error.
1364  */
1365 OCStackResult PMMultipleOwnerDeviceDiscovery(unsigned short waittime, bool isMultipleOwned, OCProvisionDev_t **ppDevicesList)
1366 {
1367     OIC_LOG(DEBUG, TAG, "IN PMMultipleOwnerEnabledDeviceDiscovery");
1368
1369     if (NULL != *ppDevicesList)
1370     {
1371         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1372         return OC_STACK_INVALID_PARAM;
1373     }
1374
1375     char DOXM_MOM_ENABLE_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1376     char DOXM_MULTIPLE_OWNED_MULTICAST_QUERY[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1377     snprintf(DOXM_MOM_ENABLE_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1378              "%s?%s=%d&%s=TRUE",
1379              OIC_RSRC_DOXM_URI, OIC_JSON_MOM_NAME, OIC_MULTIPLE_OWNER_DISABLE,
1380              OIC_JSON_OWNED_NAME);
1381     snprintf(DOXM_MULTIPLE_OWNED_MULTICAST_QUERY, sizeof(DOXM_MOM_ENABLE_MULTICAST_QUERY),
1382              "%s?%s=TRUE",
1383              OIC_RSRC_DOXM_URI, OIC_JSON_OWNED_NAME);
1384
1385     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1386     if(NULL == pDInfo)
1387     {
1388         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1389         return OC_STACK_NO_MEMORY;
1390     }
1391
1392     pDInfo->ppDevicesList = ppDevicesList;
1393     pDInfo->pCandidateList = NULL;
1394     pDInfo->isOwnedDiscovery = isMultipleOwned;
1395
1396     OCCallbackData cbData;
1397     cbData.cb = &MOTDeviceDiscoveryHandler;
1398     cbData.context = (void *)pDInfo;
1399     cbData.cd = NULL;
1400     OCStackResult res = OC_STACK_ERROR;
1401
1402     const char* query = isMultipleOwned ? DOXM_MULTIPLE_OWNED_MULTICAST_QUERY :
1403                                           DOXM_MOM_ENABLE_MULTICAST_QUERY;
1404
1405     OCDoHandle handle = NULL;
1406     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1407                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1408     if (res != OC_STACK_OK)
1409     {
1410         OIC_LOG(ERROR, TAG, "OCStack resource error");
1411         OICFree(pDInfo);
1412         return res;
1413     }
1414
1415     //Waiting for each response.
1416     res = PMTimeout(waittime, true);
1417     if(OC_STACK_OK != res)
1418     {
1419         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1420         OICFree(pDInfo);
1421         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1422         if(OC_STACK_OK !=  resCancel)
1423         {
1424             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1425         }
1426         return res;
1427     }
1428     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1429     if (OC_STACK_OK != res)
1430     {
1431         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1432         OICFree(pDInfo);
1433         return res;
1434     }
1435     OIC_LOG(DEBUG, TAG, "OUT PMMultipleOwnerEnabledDeviceDiscovery");
1436     OICFree(pDInfo);
1437     return res;
1438 }
1439
1440 #endif //MULTIPLE_OWNER
1441
1442 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
1443                                          const OCClientResponse *clientResponse)
1444 {
1445     OIC_LOG(DEBUG, TAG, "IN SecurePortDiscovery");
1446
1447     if(NULL == discoveryInfo || NULL == clientResponse)
1448     {
1449         return OC_STACK_INVALID_PARAM;
1450     }
1451
1452     OCProvisionDev_t *pDev = GetDevice(&discoveryInfo->pCandidateList,
1453                         clientResponse->devAddr.addr, clientResponse->devAddr.port);
1454     if(NULL == pDev)
1455     {
1456         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to get device");
1457         return OC_STACK_ERROR;
1458     }
1459
1460     //Try to the unicast discovery to getting secure port
1461     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1462     if(!PMGenerateQuery(false,
1463                         pDev->endpoint.addr, pDev->endpoint.port,
1464                         pDev->connType,
1465                         query, sizeof(query), OC_RSRVD_WELL_KNOWN_URI))
1466     {
1467         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to generate query");
1468         return OC_STACK_ERROR;
1469     }
1470     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1471
1472     // Set filter query with rt=oic.r.doxm
1473     const char RES_DOXM_QUERY_FMT[] = "%s?%s=%s";
1474     char uri[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1475     snprintf(uri, sizeof(uri), RES_DOXM_QUERY_FMT, query,
1476             OC_RSRVD_RESOURCE_TYPE, OIC_RSRC_TYPE_SEC_DOXM);
1477
1478     OIC_LOG_V(DEBUG, TAG, "URI=%s", uri);
1479
1480     OCCallbackData cbData;
1481     cbData.cb = &SecurePortDiscoveryHandler;
1482     cbData.context = (void*)discoveryInfo;
1483     cbData.cd = NULL;
1484     OCStackResult ret = OCDoResource(&pDev->handle, OC_REST_DISCOVER, uri, 0, 0,
1485             pDev->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1486     if(OC_STACK_OK != ret)
1487     {
1488         OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
1489         return ret;
1490     }
1491     else
1492     {
1493         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1494     }
1495
1496     OIC_LOG(DEBUG, TAG, "OUT SecurePortDiscovery");
1497
1498     return ret;
1499 }
1500
1501 /*
1502  * Since security version discovery does not used anymore, disable security version discovery.
1503  * Need to discussion to removing all version discovery related codes.
1504  */
1505 #if 0
1506 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
1507                                               const OCClientResponse *clientResponse)
1508 {
1509     OIC_LOG(DEBUG, TAG, "IN SecurityVersionDiscovery");
1510
1511     if(NULL == discoveryInfo || NULL == clientResponse)
1512     {
1513         return OC_STACK_INVALID_PARAM;
1514     }
1515
1516     //Try to the unicast discovery to getting security version
1517     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1518     if(!PMGenerateQuery(false,
1519                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1520                         clientResponse->connType,
1521                         query, sizeof(query), OIC_RSRC_VER_URI))
1522     {
1523         OIC_LOG(ERROR, TAG, "SecurityVersionDiscovery : Failed to generate query");
1524         return OC_STACK_ERROR;
1525     }
1526     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1527
1528     OCCallbackData cbData;
1529     cbData.cb = &SecurityVersionDiscoveryHandler;
1530     cbData.context = (void*)discoveryInfo;
1531     cbData.cd = NULL;
1532     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1533             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1534     if(OC_STACK_OK != ret)
1535     {
1536         OIC_LOG(ERROR, TAG, "Failed to Security Version Discovery");
1537         return ret;
1538     }
1539     else
1540     {
1541         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1542     }
1543
1544     OIC_LOG(DEBUG, TAG, "OUT SecurityVersionDiscovery");
1545
1546     return ret;
1547 }
1548 #endif
1549
1550 /**
1551  * Function to print OCProvisionDev_t for debug purpose.
1552  *
1553  * @param[in] pDev Pointer to OCProvisionDev_t. It's information will be printed by OIC_LOG_XX
1554  *
1555  */
1556 void PMPrintOCProvisionDev(const OCProvisionDev_t* pDev)
1557 {
1558     if (pDev)
1559     {
1560         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t Information +++++");
1561         OIC_LOG_V(DEBUG, TAG, "IP %s", pDev->endpoint.addr);
1562         OIC_LOG_V(DEBUG, TAG, "PORT %d", pDev->endpoint.port);
1563         OIC_LOG_V(DEBUG, TAG, "S-PORT %d", pDev->securePort);
1564         OIC_LOG(DEBUG, TAG, "++++++++++++++++++++++++++++++++++++++++");
1565     }
1566     else
1567     {
1568         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t is NULL +++++");
1569     }
1570 }
1571
1572 bool PMDeleteFromUUIDList(OCUuidList_t **pUuidList, OicUuid_t *targetId)
1573 {
1574     if(*pUuidList == NULL || targetId == NULL)
1575     {
1576         return false;
1577     }
1578     OCUuidList_t *tmp1 = NULL,*tmp2=NULL;
1579     LL_FOREACH_SAFE(*pUuidList, tmp1, tmp2)
1580     {
1581         if(0 == memcmp(tmp1->dev.id, targetId->id, sizeof(targetId->id)))
1582         {
1583             LL_DELETE(*pUuidList, tmp1);
1584             OICFree(tmp1);
1585             return true;
1586         }
1587     }
1588     return false;
1589 }