resource/csdk/security/provisioning/src/pmutility.c

   1 /* *****************************************************************
   2  *
   3  * Copyright 2015 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  * *****************************************************************/
  20 #ifndef _POSIX_C_SOURCE
  21 #define _POSIX_C_SOURCE 200112L
  22 #endif
  23
  24 #include "iotivity_config.h"
  25 #ifdef HAVE_UNISTD_H
  26 #include <unistd.h>
  27 #endif
  28 #ifdef HAVE_STRING_H
  29 #include <string.h>
  30 #endif
  31
  32 #include "ocstack.h"
  33 #include "oic_malloc.h"
  34 #include "oic_string.h"
  35 #include "oic_time.h"
  36 #include "logger.h"
  37 #include "utlist.h"
  38 #include "ocpayload.h"
  39
  40 #include "securevirtualresourcetypes.h"
  41 #include "srmresourcestrings.h" //@note: SRM's internal header
  42 #include "doxmresource.h"       //@note: SRM's internal header
  43 #include "pstatresource.h"      //@note: SRM's internal header
  44 #include "verresource.h"      //@note: SRM's internal header
  45
  46 #include "pmtypes.h"
  47 #include "pmutility.h"
  48
  49 #include "srmutility.h"
  50
  51 #define TAG ("OIC_PM_UTILITY")
  52
  53 typedef struct _DiscoveryInfo{
  54     OCProvisionDev_t    **ppDevicesList;
  55     OCProvisionDev_t    *pCandidateList;
  56     bool                isOwnedDiscovery;
  57     bool                isSingleDiscovery;
  58     bool                isFound;
  59     const OicUuid_t     *targetId;
  60 } DiscoveryInfo;
  61
  62 /*
  63  * Function to discover secre port information through unicast
  64  *
  65  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  66  * @param[in] clientResponse  Response information(It will contain payload)
  67  *
  68  * @return OC_STACK_OK on success otherwise error.
  69  */
  70 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
  71                                          const OCClientResponse *clientResponse);
  72
  73 /*
  74  * Function to discover security version information through unicast
  75  *
  76  * @param[in] discoveryInfo The pointer of discovery information to matain result of discovery
  77  * @param[in] clientResponse  Response information(It will contain payload)
  78  *
  79  * @return OC_STACK_OK on success otherwise error.
  80  */
  81 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
  82                                               const OCClientResponse *clientResponse);
  83
  84 /**
  85  * Callback handler for PMDeviceDiscovery API.
  86  *
  87  * @param[in] ctx             User context
  88  * @param[in] handle          Handler for response
  89  * @param[in] clientResponse  Response information (It will contain payload)
  90  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
  91  *         OC_STACK_DELETE_TRANSACTION to delete it.
  92  */
  93 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
  94                                 OCClientResponse *clientResponse);
  95
  96 /**
  97  * Callback handler for getting secure port information using /oic/res discovery.
  98  *
  99  * @param[in] ctx             user context
 100  * @param[in] handle          Handle for response
 101  * @param[in] clientResponse  Response information(It will contain payload)
 102  *
 103  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 104  *         OC_STACK_DELETE_TRANSACTION to delete it.
 105  */
 106 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 107                                  OCClientResponse *clientResponse);
 108
 109 /**
 110  * Callback handler for security version discovery.
 111  *
 112  * @param[in] ctx             User context
 113  * @param[in] handle          Handler for response
 114  * @param[in] clientResponse  Response information (It will contain payload)
 115  * @return OC_STACK_KEEP_TRANSACTION to keep transaction and
 116  *         OC_STACK_DELETE_TRANSACTION to delete it.
 117  */
 118 static OCStackApplicationResult SecVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 119                                 OCClientResponse *clientResponse);
 120
 121 /**
 122  * Function to search node in linked list that matches given IP and port.
 123  *
 124  * @param[in] pList         List of OCProvisionDev_t.
 125  * @param[in] addr          address of target device.
 126  * @param[in] port          port of remote server.
 127  *
 128  * @return pointer of OCProvisionDev_t if exist, otherwise NULL
 129  */
 130 OCProvisionDev_t* GetDevice(OCProvisionDev_t **ppDevicesList, const char* addr, const uint16_t port)
 131 {
 132     if(NULL == addr || NULL == *ppDevicesList)
 133     {
 134         OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
 135         return NULL;
 136     }
 137
 138     OCProvisionDev_t *ptr = NULL;
 139     LL_FOREACH(*ppDevicesList, ptr)
 140     {
 141         if( strcmp(ptr->endpoint.addr, addr) == 0 && port == ptr->endpoint.port)
 142         {
 143             return ptr;
 144         }
 145     }
 146
 147     return NULL;
 148 }
 149
 150
 151 /**
 152  * Add device information to list.
 153  *
 154  * @param[in] pList         List of OCProvisionDev_t.
 155  * @param[in] endpoint      target device endpoint.
 156  * @param[in] connType      connectivity type of endpoint
 157  * @param[in] doxm          pointer to doxm instance.
 158  *
 159  * @return OC_STACK_OK for success and error code otherwise.
 160  */
 161 OCStackResult AddDevice(OCProvisionDev_t **ppDevicesList, OCDevAddr* endpoint,
 162                         OCConnectivityType connType, OicSecDoxm_t *doxm)
 163 {
 164     if (NULL == endpoint)
 165     {
 166         return OC_STACK_INVALID_PARAM;
 167     }
 168
 169     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, endpoint->addr, endpoint->port);
 170     if(!ptr)
 171     {
 172         ptr = (OCProvisionDev_t *)OICCalloc(1, sizeof (OCProvisionDev_t));
 173         if (NULL == ptr)
 174         {
 175             OIC_LOG(ERROR, TAG, "Error while allocating memory for linkedlist node !!");
 176             return OC_STACK_NO_MEMORY;
 177         }
 178
 179         ptr->endpoint = *endpoint;
 180         ptr->doxm = doxm;
 181         ptr->securePort = DEFAULT_SECURE_PORT;
 182         ptr->next = NULL;
 183         ptr->connType = connType;
 184         ptr->devStatus = DEV_STATUS_ON; //AddDevice is called when discovery(=alive)
 185         OICStrcpy(ptr->secVer, MAX_VERSION_LEN, DEFAULT_SEC_VERSION); // version initialization
 186         ptr->handle = NULL;
 187
 188         LL_PREPEND(*ppDevicesList, ptr);
 189     }
 190
 191     return OC_STACK_OK;
 192 }
 193
 194 /**
 195  * Move device object between two device lists.
 196  *
 197  * @param[in] ppDstDevicesList         Destination list of OCProvisionDev_t.
 198  * @param[in] ppSrcDevicesList         Source list of OCProvisionDev_t.
 199  * @param[in] endpoint      target device endpoint.
 200  *
 201  * @return OC_STACK_OK for success and error code otherwise.
 202  */
 203 OCStackResult MoveDeviceList(OCProvisionDev_t **ppDstDevicesList,
 204                         OCProvisionDev_t **ppSrcDevicesList, OCDevAddr* endpoint)
 205 {
 206     if (NULL == ppSrcDevicesList || NULL == endpoint)
 207     {
 208         return OC_STACK_INVALID_PARAM;
 209     }
 210
 211     OCProvisionDev_t *ptr = GetDevice(ppSrcDevicesList, endpoint->addr, endpoint->port);
 212     if(ptr)
 213     {
 214         LL_DELETE(*ppSrcDevicesList, ptr);
 215         LL_PREPEND(*ppDstDevicesList, ptr);
 216         OIC_LOG_V(DEBUG, TAG, "MoveDeviceList success : %s(%d)", endpoint->addr, endpoint->port);
 217         return OC_STACK_OK;
 218     }
 219
 220     return OC_STACK_ERROR;
 221 }
 222
 223 /**
 224  * Function to set secure port information from the given list of devices.
 225  *
 226  * @param[in] pList         List of OCProvisionDev_t.
 227  * @param[in] addr          address of target device.
 228  * @param[in] port          port of remote server.
 229  * @param[in] secureport    secure port information.
 230  *
 231  * @return OC_STACK_OK for success and errorcode otherwise.
 232  */
 233 static OCStackResult UpdateSecurePortOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 234                                        uint16_t port, uint16_t securePort
 235 #ifdef __WITH_TLS__
 236                                        ,uint16_t tcpPort
 237 #endif
 238                                        )
 239 {
 240     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 241
 242     if(!ptr)
 243     {
 244         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 245         return OC_STACK_ERROR;
 246     }
 247
 248     ptr->securePort = securePort;
 249
 250 #ifdef __WITH_TLS__
 251     ptr->tcpPort = tcpPort;
 252 #endif
 253
 254     return OC_STACK_OK;
 255 }
 256
 257 /**
 258  * Function to set security version information from the given list of devices.
 259  *
 260  * @param[in] pList         List of OCProvisionDev_t.
 261  * @param[in] addr          address of target device.
 262  * @param[in] port          port of remote server.
 263  * @param[in] secVer    security version information.
 264  *
 265  * @return OC_STACK_OK for success and errorcode otherwise.
 266  */
 267 OCStackResult UpdateSecVersionOfDevice(OCProvisionDev_t **ppDevicesList, const char *addr,
 268                                        uint16_t port, const char* secVer)
 269 {
 270     if (NULL == secVer)
 271     {
 272         return OC_STACK_INVALID_PARAM;
 273     }
 274
 275     OCProvisionDev_t *ptr = GetDevice(ppDevicesList, addr, port);
 276
 277     if(!ptr)
 278     {
 279         OIC_LOG(ERROR, TAG, "Can not find device information in the discovery device list");
 280         return OC_STACK_ERROR;
 281     }
 282
 283     OICStrcpy(ptr->secVer, MAX_VERSION_LEN, secVer);
 284
 285     return OC_STACK_OK;
 286 }
 287
 288 /**
 289  * This function deletes list of provision target devices
 290  *
 291  * @param[in] pDevicesList         List of OCProvisionDev_t.
 292  */
 293 void PMDeleteDeviceList(OCProvisionDev_t *pDevicesList)
 294 {
 295     if(pDevicesList)
 296     {
 297         OCProvisionDev_t *del = NULL, *tmp = NULL;
 298         LL_FOREACH_SAFE(pDevicesList, del, tmp)
 299         {
 300             LL_DELETE(pDevicesList, del);
 301
 302             DeleteDoxmBinData(del->doxm);
 303             DeletePstatBinData(del->pstat);
 304             OICFree(del);
 305         }
 306     }
 307 }
 308
 309 OCProvisionDev_t* PMCloneOCProvisionDev(const OCProvisionDev_t* src)
 310 {
 311     OIC_LOG(DEBUG, TAG, "IN PMCloneOCProvisionDev");
 312
 313     if (!src)
 314     {
 315         OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Invalid parameter");
 316         return NULL;
 317     }
 318
 319     // TODO: Consider use VERIFY_NON_NULL instead of if ( null check ) { goto exit; }
 320     OCProvisionDev_t* newDev = (OCProvisionDev_t*)OICCalloc(1, sizeof(OCProvisionDev_t));
 321     VERIFY_NON_NULL(TAG, newDev, ERROR);
 322
 323     memcpy(&newDev->endpoint, &src->endpoint, sizeof(OCDevAddr));
 324
 325     if (src->pstat)
 326     {
 327         newDev->pstat= (OicSecPstat_t*)OICCalloc(1, sizeof(OicSecPstat_t));
 328         VERIFY_NON_NULL(TAG, newDev->pstat, ERROR);
 329
 330         memcpy(newDev->pstat, src->pstat, sizeof(OicSecPstat_t));
 331         // We have to assign NULL for not necessary information to prevent memory corruption.
 332         newDev->pstat->sm = NULL;
 333     }
 334
 335     if (src->doxm)
 336     {
 337         newDev->doxm = (OicSecDoxm_t*)OICCalloc(1, sizeof(OicSecDoxm_t));
 338         VERIFY_NON_NULL(TAG, newDev->doxm, ERROR);
 339
 340         memcpy(newDev->doxm, src->doxm, sizeof(OicSecDoxm_t));
 341         // We have to assign NULL for not necessary information to prevent memory corruption.
 342         newDev->doxm->oxmType = NULL;
 343         newDev->doxm->oxm = NULL;
 344     }
 345
 346     if (0 == strlen(src->secVer))
 347     {
 348         OICStrcpy(newDev->secVer, MAX_VERSION_LEN, DEFAULT_SEC_VERSION);
 349     }
 350     else
 351     {
 352         OICStrcpy(newDev->secVer, MAX_VERSION_LEN, src->secVer);
 353     }
 354
 355     newDev->securePort = src->securePort;
 356     newDev->devStatus = src->devStatus;
 357     newDev->connType = src->connType;
 358     newDev->next = NULL;
 359
 360     OIC_LOG(DEBUG, TAG, "OUT PMCloneOCProvisionDev");
 361
 362     return newDev;
 363
 364 exit:
 365     OIC_LOG(ERROR, TAG, "PMCloneOCProvisionDev : Failed to allocate memory");
 366     if (newDev)
 367     {
 368         OICFree(newDev->pstat);
 369         OICFree(newDev->doxm);
 370         OICFree(newDev);
 371     }
 372     return NULL;
 373 }
 374
 375 /**
 376  * Timeout implementation for secure discovery. When performing secure discovery,
 377  * we should wait a certain period of time for getting response of each devices.
 378  *
 379  * @param[in]  waittime  Timeout in seconds.
 380  * @param[in]  waitForStackResponse if true timeout function will call OCProcess while waiting.
 381  * @return OC_STACK_OK on success otherwise error.
 382  */
 383 OCStackResult PMTimeout(unsigned short waittime, bool waitForStackResponse)
 384 {
 385     OCStackResult res = OC_STACK_OK;
 386
 387     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 388     while (OC_STACK_OK == res)
 389     {
 390         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 391
 392         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 393         if (elapsed > waittime)
 394         {
 395             return OC_STACK_OK;
 396         }
 397         if (waitForStackResponse)
 398         {
 399             res = OCProcess();
 400         }
 401     }
 402     return res;
 403 }
 404
 405 bool PMGenerateQuery(bool isSecure,
 406                      const char* address, uint16_t port,
 407                      OCConnectivityType connType,
 408                      char* buffer, size_t bufferSize, const char* uri)
 409 {
 410     if(!address || !buffer || !uri)
 411     {
 412         OIC_LOG(ERROR, TAG, "PMGenerateQuery : Invalid parameters.");
 413         return false;
 414     }
 415
 416     int snRet = 0;
 417     char* prefix = (isSecure == true) ? COAPS_PREFIX : COAP_PREFIX;
 418
 419     switch(connType & CT_MASK_ADAPTER)
 420     {
 421         case CT_ADAPTER_TCP:
 422             prefix = (isSecure == true) ? COAPS_TCP_PREFIX : COAP_TCP_PREFIX;
 423         case CT_ADAPTER_IP:
 424             switch(connType & CT_MASK_FLAGS & ~CT_FLAG_SECURE)
 425             {
 426                 case CT_IP_USE_V4:
 427                     snRet = snprintf(buffer, bufferSize, "%s%s:%d%s",
 428                                      prefix, address, port, uri);
 429                     break;
 430                 case CT_IP_USE_V6:
 431                 {
 432                     char addressEncoded[128] = {0};
 433
 434                     OCStackResult result = OCEncodeAddressForRFC6874(addressEncoded,
 435                                                                      sizeof(addressEncoded),
 436                                                                      address);
 437                     if (OC_STACK_OK != result)
 438                     {
 439                         OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : encoding error %d\n", result);
 440                         return false;
 441                     }
 442
 443                     snRet = snprintf(buffer, bufferSize, "%s[%s]:%d%s",
 444                                      prefix, addressEncoded, port, uri);
 445                     break;
 446                 }
 447                 default:
 448                     OIC_LOG(ERROR, TAG, "Unknown address format.");
 449                     return false;
 450             }
 451             // snprintf return value check
 452             if (snRet < 0)
 453             {
 454                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Error (snprintf) %d\n", snRet);
 455                 return false;
 456             }
 457             else if ((size_t)snRet >= bufferSize)
 458             {
 459                 OIC_LOG_V(ERROR, TAG, "PMGenerateQuery : Truncated (snprintf) %d\n", snRet);
 460                 return false;
 461             }
 462
 463             break;
 464         // TODO: We need to verify tinyDTLS in below cases
 465         case CT_ADAPTER_GATT_BTLE:
 466         case CT_ADAPTER_RFCOMM_BTEDR:
 467             OIC_LOG(ERROR, TAG, "Not supported connectivity adapter.");
 468             return false;
 469             break;
 470         default:
 471             OIC_LOG(ERROR, TAG, "Unknown connectivity adapter.");
 472             return false;
 473     }
 474
 475     return true;
 476 }
 477
 478 static OCStackApplicationResult SecurityVersionDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 479                                 OCClientResponse *clientResponse)
 480 {
 481     if (ctx == NULL)
 482     {
 483         OIC_LOG(ERROR, TAG, "Lost List of device information");
 484         return OC_STACK_KEEP_TRANSACTION;
 485     }
 486     (void)UNUSED;
 487     if (clientResponse)
 488     {
 489         if  (NULL == clientResponse->payload)
 490         {
 491             OIC_LOG(INFO, TAG, "Skiping Null payload");
 492             return OC_STACK_KEEP_TRANSACTION;
 493         }
 494         if (OC_STACK_OK != clientResponse->result)
 495         {
 496             OIC_LOG(INFO, TAG, "Error in response");
 497             return OC_STACK_KEEP_TRANSACTION;
 498         }
 499         else
 500         {
 501             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 502             {
 503                 OIC_LOG(INFO, TAG, "Unknown payload type");
 504                 return OC_STACK_KEEP_TRANSACTION;
 505             }
 506
 507             OicSecVer_t *ptrVer = NULL;
 508             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 509             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 510
 511             OCStackResult res = CBORPayloadToVer(payload, size, &ptrVer);
 512             if ((NULL == ptrVer) && (OC_STACK_OK != res))
 513             {
 514                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 515                 return OC_STACK_KEEP_TRANSACTION;
 516             }
 517             else
 518             {
 519                 OIC_LOG(DEBUG, TAG, "Successfully converted ver cbor to bin.");
 520
 521                 //If this is owend device discovery we have to filter out the responses.
 522                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 523                 res = UpdateSecVersionOfDevice(pDInfo->ppDevicesList, clientResponse->devAddr.addr,
 524                                                          clientResponse->devAddr.port, ptrVer->secv);
 525                 if (OC_STACK_OK != res)
 526                 {
 527                     OIC_LOG(ERROR, TAG, "Error while getting security version.");
 528                     DeleteVerBinData(ptrVer);
 529                     return OC_STACK_KEEP_TRANSACTION;
 530                 }
 531
 532                 OIC_LOG(INFO, TAG, "= Discovered security version =");
 533                 OIC_LOG_V(DEBUG, TAG, "IP %s", clientResponse->devAddr.addr);
 534                 OIC_LOG_V(DEBUG, TAG, "PORT %d", clientResponse->devAddr.port);
 535                 OIC_LOG_V(DEBUG, TAG, "VERSION %s", ptrVer->secv);
 536
 537                 OIC_LOG(INFO, TAG, "Exiting SecVersionDiscoveryHandler.");
 538                 DeleteVerBinData(ptrVer);
 539             }
 540         }
 541     }
 542     else
 543     {
 544         OIC_LOG(INFO, TAG, "Skiping Null response");
 545         return OC_STACK_KEEP_TRANSACTION;
 546     }
 547
 548     return  OC_STACK_DELETE_TRANSACTION;
 549 }
 550
 551 static OCStackApplicationResult SecurePortDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 552                                  OCClientResponse *clientResponse)
 553 {
 554     if (ctx == NULL)
 555     {
 556         OIC_LOG(ERROR, TAG, "Lost List of device information");
 557         return OC_STACK_DELETE_TRANSACTION;
 558     }
 559     (void)UNUSED;
 560     if (clientResponse)
 561     {
 562         if  (NULL == clientResponse->payload)
 563         {
 564             OIC_LOG(INFO, TAG, "Skiping Null payload");
 565         }
 566         else
 567         {
 568             if (PAYLOAD_TYPE_DISCOVERY != clientResponse->payload->type)
 569             {
 570                 OIC_LOG(INFO, TAG, "Wrong payload type");
 571                 return OC_STACK_DELETE_TRANSACTION;
 572             }
 573
 574             uint16_t securePort = 0;
 575             OCResourcePayload* resPayload = ((OCDiscoveryPayload*)clientResponse->payload)->resources;
 576
 577             // Use seure port of doxm for OTM and Provision.
 578             while (resPayload)
 579             {
 580                 if (0 == strncmp(resPayload->uri, OIC_RSRC_DOXM_URI, strlen(OIC_RSRC_DOXM_URI)))
 581                 {
 582                     OIC_LOG_V(INFO,TAG,"resPaylod->uri:%s",resPayload->uri);
 583                     OIC_LOG(INFO, TAG, "Found doxm resource.");
 584                     break;
 585                 }
 586                 else
 587                 {
 588                     resPayload = resPayload->next;
 589                 }
 590             }
 591             if (NULL == resPayload)
 592             {
 593                 OIC_LOG(ERROR, TAG, "Can not find doxm resource.");
 594                 return OC_STACK_DELETE_TRANSACTION;
 595             }
 596             if (resPayload && resPayload->secure)
 597             {
 598                 securePort = resPayload->port;
 599             }
 600             else
 601             {
 602                 OIC_LOG(INFO, TAG, "Can not find secure port information.");
 603                 return OC_STACK_DELETE_TRANSACTION;
 604             }
 605 #ifdef __WITH_TLS__
 606             OIC_LOG_V(DEBUG, TAG, "%s: TCP port from discovery = %d", __func__, resPayload->tcpPort);
 607 #endif
 608             DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 609             OCProvisionDev_t *ptr = GetDevice(&pDInfo->pCandidateList,
 610                                                          clientResponse->devAddr.addr,
 611                                                          clientResponse->devAddr.port);
 612             if(!ptr)
 613             {
 614                 OIC_LOG(ERROR, TAG, "Can not find device information in the discovery candidate device list");
 615                 return OC_STACK_DELETE_TRANSACTION;
 616             }
 617
 618             OCStackResult res = UpdateSecurePortOfDevice(&pDInfo->pCandidateList,
 619                                                          clientResponse->devAddr.addr,
 620                                                          clientResponse->devAddr.port,
 621                                                          securePort
 622 #ifdef __WITH_TLS__
 623                                                          ,resPayload->tcpPort
 624 #endif
 625                                                          );
 626             if (OC_STACK_OK != res)
 627             {
 628                 OIC_LOG(ERROR, TAG, "Error while getting secure port.");
 629                 return OC_STACK_DELETE_TRANSACTION;
 630             }
 631
 632             res = MoveDeviceList(pDInfo->ppDevicesList, &pDInfo->pCandidateList, &clientResponse->devAddr);
 633             if(OC_STACK_OK != res)
 634             {
 635                 OIC_LOG(ERROR, TAG, "Error while move the discovered device to list.");
 636                 return OC_STACK_DELETE_TRANSACTION;
 637             }
 638
 639             if(pDInfo->isSingleDiscovery)
 640             {
 641                 pDInfo->isFound = true;
 642             }
 643
 644 /*
 645  * Since security version discovery does not used anymore, disable security version discovery.
 646  * Need to discussion to removing all version discovery related codes.
 647  */
 648 #if 0
 649             res = SecurityVersionDiscovery(pDInfo, clientResponse);
 650             if(OC_STACK_OK != res)
 651             {
 652                 OIC_LOG(ERROR, TAG, "Failed to SecurityVersionDiscovery");
 653                 return OC_STACK_DELETE_TRANSACTION;
 654             }
 655 #endif
 656
 657             OIC_LOG(INFO, TAG, "Exiting SecurePortDiscoveryHandler.");
 658         }
 659
 660         return  OC_STACK_DELETE_TRANSACTION;
 661     }
 662     else
 663     {
 664         OIC_LOG(INFO, TAG, "Skiping Null response");
 665     }
 666
 667     return  OC_STACK_DELETE_TRANSACTION;
 668 }
 669
 670 static OCStackApplicationResult DeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
 671                                 OCClientResponse *clientResponse)
 672 {
 673     if (ctx == NULL)
 674     {
 675         OIC_LOG(ERROR, TAG, "Lost List of device information");
 676         return OC_STACK_KEEP_TRANSACTION;
 677     }
 678     (void)UNUSED;
 679     if (clientResponse)
 680     {
 681         if  (NULL == clientResponse->payload)
 682         {
 683             OIC_LOG(INFO, TAG, "Skiping Null payload");
 684             return OC_STACK_KEEP_TRANSACTION;
 685         }
 686         if (OC_STACK_OK != clientResponse->result)
 687         {
 688             OIC_LOG(INFO, TAG, "Error in response");
 689             return OC_STACK_KEEP_TRANSACTION;
 690         }
 691         else
 692         {
 693             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
 694             {
 695                 OIC_LOG(INFO, TAG, "Unknown payload type");
 696                 return OC_STACK_KEEP_TRANSACTION;
 697             }
 698
 699             OicSecDoxm_t *ptrDoxm = NULL;
 700             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
 701             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
 702
 703             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
 704             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
 705             {
 706                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
 707                 return OC_STACK_KEEP_TRANSACTION;
 708             }
 709             else
 710             {
 711                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
 712
 713                 //If this is owend device discovery we have to filter out the responses.
 714                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 715                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
 716
 717                 // Get my device ID from doxm resource
 718                 OicUuid_t myId;
 719                 memset(&myId, 0, sizeof(myId));
 720                 OCStackResult res = GetDoxmDevOwnerId(&myId);
 721                 if(OC_STACK_OK != res)
 722                 {
 723                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
 724                     DeleteDoxmBinData(ptrDoxm);
 725                     return OC_STACK_KEEP_TRANSACTION;
 726                 }
 727
 728                 // If this is owned discovery response but owner is not me then discard it.
 729                 if( (pDInfo->isOwnedDiscovery) &&
 730                     (0 != memcmp(&ptrDoxm->owner.id, &myId.id, sizeof(myId.id))) )
 731                 {
 732                     OIC_LOG(DEBUG, TAG, "Discovered device is not owend by me");
 733                     DeleteDoxmBinData(ptrDoxm);
 734                     return OC_STACK_KEEP_TRANSACTION;
 735                 }
 736
 737                 res = GetDoxmDeviceID(&myId);
 738                 if(OC_STACK_OK != res)
 739                 {
 740                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
 741                     DeleteDoxmBinData(ptrDoxm);
 742                     return OC_STACK_KEEP_TRANSACTION;
 743                 }
 744                 //if targetId and discovered deviceID are different, discard it
 745                 if ((pDInfo->isSingleDiscovery) &&
 746                     (0 != memcmp(&ptrDoxm->deviceID.id, &pDInfo->targetId->id, sizeof(pDInfo->targetId->id))) )
 747                 {
 748                     OIC_LOG(DEBUG, TAG, "Discovered device is not target device");
 749                     DeleteDoxmBinData(ptrDoxm);
 750                     return OC_STACK_KEEP_TRANSACTION;
 751                 }
 752                 //if this is owned discovery and this is PT's reply, discard it
 753                 if (((pDInfo->isSingleDiscovery) || (pDInfo->isOwnedDiscovery)) &&
 754                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
 755                 {
 756                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
 757                     DeleteDoxmBinData(ptrDoxm);
 758                     return OC_STACK_KEEP_TRANSACTION;
 759                 }
 760
 761                 res = AddDevice(ppDevicesList, &clientResponse->devAddr,
 762                         clientResponse->connType, ptrDoxm);
 763                 if (OC_STACK_OK != res)
 764                 {
 765                     OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
 766                     DeleteDoxmBinData(ptrDoxm);
 767                     return OC_STACK_KEEP_TRANSACTION;
 768                 }
 769
 770                 res = SecurePortDiscovery(pDInfo, clientResponse);
 771                 if(OC_STACK_OK != res)
 772                 {
 773                     OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
 774                     DeleteDoxmBinData(ptrDoxm);
 775                     return OC_STACK_KEEP_TRANSACTION;
 776                 }
 777
 778                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
 779             }
 780
 781             return  OC_STACK_KEEP_TRANSACTION;
 782         }
 783     }
 784     else
 785     {
 786         OIC_LOG(INFO, TAG, "Skiping Null response");
 787         return OC_STACK_KEEP_TRANSACTION;
 788     }
 789
 790     return  OC_STACK_DELETE_TRANSACTION;
 791 }
 792
 793 static void DeviceDiscoveryDeleteHandler(void *ctx)
 794 {
 795     OIC_LOG(DEBUG, TAG, "IN DeviceDiscoveryDeleteHandler");
 796     if (NULL == ctx)
 797     {
 798         OIC_LOG(WARNING, TAG, "Not found context in DeviceDiscoveryDeleteHandler");
 799         return;
 800     }
 801
 802     DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
 803     if (NULL != pDInfo->pCandidateList)
 804     {
 805         OCProvisionDev_t *pDev = NULL;
 806         LL_FOREACH(pDInfo->pCandidateList, pDev)
 807         {
 808             OIC_LOG_V(DEBUG, TAG, "OCCancel - %s : %d",
 809                             pDev->endpoint.addr, pDev->endpoint.port);
 810             if(OC_STACK_OK !=  OCCancel(pDev->handle,OC_HIGH_QOS,NULL,0))
 811             {
 812                 OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 813             }
 814         }
 815         PMDeleteDeviceList(pDInfo->pCandidateList);
 816     }
 817     OIC_LOG(DEBUG, TAG, "OUT DeviceDiscoveryDeleteHandler");
 818 }
 819
 820 /**
 821  * Discover owned/unowned device in the specified endpoint/deviceID.
 822  * It will return the found device even though timeout is not exceeded.
 823  *
 824  * @param[in] waittime           Timeout in seconds
 825  * @param[in] deviceID           deviceID of target device.
 826  * @param[out] ppFoundDevice     OCProvisionDev_t of found device
 827  *
 828  * @return OC_STACK_OK on success otherwise error.\n
 829  *         OC_STACK_INVALID_PARAM when deviceID is NULL or ppFoundDevice is not initailized.
 830  */
 831 OCStackResult PMSingleDeviceDiscovery(unsigned short waittime, const OicUuid_t* deviceID,
 832                                  OCProvisionDev_t **ppFoundDevice)
 833 {
 834     OIC_LOG(DEBUG, TAG, "IN PMSingleDeviceDiscovery");
 835
 836     if (NULL != *ppFoundDevice)
 837     {
 838         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 839         return OC_STACK_INVALID_PARAM;
 840     }
 841
 842     if (NULL == deviceID)
 843     {
 844         OIC_LOG(ERROR, TAG, "Invalid device ID");
 845         return OC_STACK_INVALID_PARAM;
 846     }
 847
 848
 849     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 850     if(NULL == pDInfo)
 851     {
 852         OIC_LOG(ERROR, TAG, "PMSingleDeviceDiscovery : Memory allocation failed.");
 853         return OC_STACK_NO_MEMORY;
 854     }
 855
 856     pDInfo->ppDevicesList = ppFoundDevice;
 857     pDInfo->pCandidateList = NULL;
 858     pDInfo->isOwnedDiscovery = false;
 859     pDInfo->isSingleDiscovery = true;
 860     pDInfo->isFound = false;
 861     pDInfo->targetId = deviceID;
 862
 863     OCCallbackData cbData;
 864     cbData.cb = &DeviceDiscoveryHandler;
 865     cbData.context = (void *)pDInfo;
 866     cbData.cd = &DeviceDiscoveryDeleteHandler;
 867
 868     OCStackResult res = OC_STACK_ERROR;
 869
 870     char query[MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1] = { '\0' };
 871     snprintf(query, MAX_URI_LENGTH + MAX_QUERY_LENGTH + 1, "/oic/sec/doxm");
 872
 873     OCDoHandle handle = NULL;
 874     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 875                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 876     if (res != OC_STACK_OK)
 877     {
 878         OIC_LOG(ERROR, TAG, "OCStack resource error");
 879         OICFree(pDInfo);
 880         return res;
 881     }
 882
 883     //Waiting for each response.
 884     res = OC_STACK_OK;
 885     uint64_t startTime = OICGetCurrentTime(TIME_IN_MS);
 886     while (OC_STACK_OK == res && !pDInfo->isFound)
 887     {
 888         uint64_t currTime = OICGetCurrentTime(TIME_IN_MS);
 889
 890         long elapsed = (long)((currTime - startTime) / MS_PER_SEC);
 891         if (elapsed > waittime)
 892         {
 893             break;
 894         }
 895         res = OCProcess();
 896     }
 897
 898     if(OC_STACK_OK != res)
 899     {
 900         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 901         OICFree(pDInfo);
 902         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 903         if(OC_STACK_OK !=  resCancel)
 904         {
 905             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 906         }
 907         return res;
 908     }
 909
 910     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 911     if (OC_STACK_OK != res)
 912     {
 913         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 914         OICFree(pDInfo);
 915         return res;
 916     }
 917     OIC_LOG(DEBUG, TAG, "OUT PMSingleDeviceDiscovery");
 918     OICFree(pDInfo);
 919     return res;
 920 }
 921
 922
 923 /**
 924  * Discover owned/unowned devices in the same IP subnet. .
 925  *
 926  * @param[in] waittime      Timeout in seconds.
 927  * @param[in] isOwned       bool flag for owned / unowned discovery
 928  * @param[in] ppDevicesList        List of OCProvisionDev_t.
 929  *
 930  * @return OC_STACK_OK on success otherwise error.
 931  */
 932 OCStackResult PMDeviceDiscovery(unsigned short waittime, bool isOwned, OCProvisionDev_t **ppDevicesList)
 933 {
 934     OIC_LOG(DEBUG, TAG, "IN PMDeviceDiscovery");
 935
 936     if (NULL != *ppDevicesList)
 937     {
 938         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
 939         return OC_STACK_INVALID_PARAM;
 940     }
 941
 942     const char DOXM_OWNED_FALSE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=FALSE";
 943     const char DOXM_OWNED_TRUE_MULTICAST_QUERY[] = "/oic/sec/doxm?Owned=TRUE";
 944
 945     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
 946     if(NULL == pDInfo)
 947     {
 948         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
 949         return OC_STACK_NO_MEMORY;
 950     }
 951
 952     pDInfo->ppDevicesList = ppDevicesList;
 953     pDInfo->pCandidateList = NULL;
 954     pDInfo->isOwnedDiscovery = isOwned;
 955     pDInfo->isSingleDiscovery = false;
 956     pDInfo->targetId = NULL;
 957
 958     OCCallbackData cbData;
 959     cbData.cb = &DeviceDiscoveryHandler;
 960     cbData.context = (void *)pDInfo;
 961     cbData.cd = &DeviceDiscoveryDeleteHandler;
 962     OCStackResult res = OC_STACK_ERROR;
 963
 964     const char* query = isOwned ? DOXM_OWNED_TRUE_MULTICAST_QUERY :
 965                                   DOXM_OWNED_FALSE_MULTICAST_QUERY;
 966
 967     OCDoHandle handle = NULL;
 968     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
 969                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
 970     if (res != OC_STACK_OK)
 971     {
 972         OIC_LOG(ERROR, TAG, "OCStack resource error");
 973         OICFree(pDInfo);
 974         return res;
 975     }
 976
 977     //Waiting for each response.
 978     res = PMTimeout(waittime, true);
 979     if(OC_STACK_OK != res)
 980     {
 981         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
 982         OICFree(pDInfo);
 983         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
 984         if(OC_STACK_OK !=  resCancel)
 985         {
 986             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 987         }
 988         return res;
 989     }
 990     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
 991     if (OC_STACK_OK != res)
 992     {
 993         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
 994         OICFree(pDInfo);
 995         return res;
 996     }
 997     OIC_LOG(DEBUG, TAG, "OUT PMDeviceDiscovery");
 998     OICFree(pDInfo);
 999     return res;
1000 }
1001
1002 #ifdef MULTIPLE_OWNER
1003 static OCStackApplicationResult MOTDeviceDiscoveryHandler(void *ctx, OCDoHandle UNUSED,
1004                                 OCClientResponse *clientResponse)
1005 {
1006     if (ctx == NULL)
1007     {
1008         OIC_LOG(ERROR, TAG, "Lost List of device information");
1009         return OC_STACK_KEEP_TRANSACTION;
1010     }
1011     (void)UNUSED;
1012     if (clientResponse)
1013     {
1014         if  (NULL == clientResponse->payload)
1015         {
1016             OIC_LOG(INFO, TAG, "Skipping Null payload");
1017             return OC_STACK_KEEP_TRANSACTION;
1018         }
1019         if (OC_STACK_OK != clientResponse->result)
1020         {
1021             OIC_LOG(INFO, TAG, "Error in response");
1022             return OC_STACK_KEEP_TRANSACTION;
1023         }
1024         else
1025         {
1026             if (PAYLOAD_TYPE_SECURITY != clientResponse->payload->type)
1027             {
1028                 OIC_LOG(INFO, TAG, "Unknown payload type");
1029                 return OC_STACK_KEEP_TRANSACTION;
1030             }
1031
1032             OicSecDoxm_t *ptrDoxm = NULL;
1033             uint8_t *payload = ((OCSecurityPayload*)clientResponse->payload)->securityData;
1034             size_t size = ((OCSecurityPayload*)clientResponse->payload)->payloadSize;
1035
1036             OCStackResult res = CBORPayloadToDoxm(payload, size, &ptrDoxm);
1037             if ((NULL == ptrDoxm) || (OC_STACK_OK != res))
1038             {
1039                 OIC_LOG(INFO, TAG, "Ignoring malformed CBOR");
1040                 return OC_STACK_KEEP_TRANSACTION;
1041             }
1042             else
1043             {
1044                 OIC_LOG(DEBUG, TAG, "Successfully converted doxm cbor to bin.");
1045
1046                 //If this is owend device discovery we have to filter out the responses.
1047                 DiscoveryInfo* pDInfo = (DiscoveryInfo*)ctx;
1048                 OCProvisionDev_t **ppDevicesList = &pDInfo->pCandidateList;
1049
1050                 // Get my device ID from doxm resource
1051                 OicUuid_t myId;
1052                 memset(&myId, 0, sizeof(myId));
1053                 OCStackResult res = GetDoxmDevOwnerId(&myId);
1054                 if(OC_STACK_OK != res)
1055                 {
1056                     OIC_LOG(ERROR, TAG, "Error while getting my device ID.");
1057                     DeleteDoxmBinData(ptrDoxm);
1058                     return OC_STACK_KEEP_TRANSACTION;
1059                 }
1060
1061                 res = GetDoxmDeviceID(&myId);
1062                 if(OC_STACK_OK != res)
1063                 {
1064                     OIC_LOG(ERROR, TAG, "Error while getting my UUID.");
1065                     DeleteDoxmBinData(ptrDoxm);
1066                     return OC_STACK_KEEP_TRANSACTION;
1067                 }
1068                 //if this is owned discovery and this is PT's reply, discard it
1069                 if((pDInfo->isOwnedDiscovery) &&
1070                         (0 == memcmp(&ptrDoxm->deviceID.id, &myId.id, sizeof(myId.id))) )
1071                 {
1072                     OIC_LOG(DEBUG, TAG, "discarding provision tool's reply");
1073                     DeleteDoxmBinData(ptrDoxm);
1074                     return OC_STACK_KEEP_TRANSACTION;
1075                 }
1076
1077                 if(pDInfo->isOwnedDiscovery)
1078                 {
1079                     OicSecSubOwner_t* subOwner = NULL;
1080                     LL_FOREACH(ptrDoxm->subOwners, subOwner)
1081                     {
1082                         if(memcmp(myId.id, subOwner->uuid.id, sizeof(myId.id)) == 0)
1083                         {
1084                             break;
1085                         }
1086                     }
1087
1088                     if(subOwner)
1089                     {
1090                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1091                                 clientResponse->connType, ptrDoxm);
1092                         if (OC_STACK_OK != res)
1093                         {
1094                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1095                             DeleteDoxmBinData(ptrDoxm);
1096                             return OC_STACK_KEEP_TRANSACTION;
1097                         }
1098
1099                         res = SecurePortDiscovery(pDInfo, clientResponse);
1100                         if(OC_STACK_OK != res)
1101                         {
1102                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1103                             DeleteDoxmBinData(ptrDoxm);
1104                             return OC_STACK_KEEP_TRANSACTION;
1105                         }
1106                     }
1107                     else
1108                     {
1109                         OIC_LOG(ERROR, TAG, "discarding device's reply, because not a SubOwner.");
1110                         DeleteDoxmBinData(ptrDoxm);
1111                         return OC_STACK_KEEP_TRANSACTION;
1112                     }
1113                 }
1114                 else
1115                 {
1116                     if(ptrDoxm->mom && OIC_MULTIPLE_OWNER_DISABLE != ptrDoxm->mom->mode)
1117                     {
1118                         res = AddDevice(ppDevicesList, &clientResponse->devAddr,
1119                                 clientResponse->connType, ptrDoxm);
1120                         if (OC_STACK_OK != res)
1121                         {
1122                             OIC_LOG(ERROR, TAG, "Error while adding data to linkedlist.");
1123                             DeleteDoxmBinData(ptrDoxm);
1124                             return OC_STACK_KEEP_TRANSACTION;
1125                         }
1126
1127                         res = SecurePortDiscovery(pDInfo, clientResponse);
1128                         if(OC_STACK_OK != res)
1129                         {
1130                             OIC_LOG(ERROR, TAG, "Failed to SecurePortDiscovery");
1131                             DeleteDoxmBinData(ptrDoxm);
1132                             return OC_STACK_KEEP_TRANSACTION;
1133                         }
1134                     }
1135                     else
1136                     {
1137                         OIC_LOG(ERROR, TAG, "discarding mom disabled device's reply");
1138                         DeleteDoxmBinData(ptrDoxm);
1139                         return OC_STACK_KEEP_TRANSACTION;
1140                     }
1141                 }
1142
1143                 OIC_LOG(INFO, TAG, "Exiting ProvisionDiscoveryHandler.");
1144             }
1145
1146             return  OC_STACK_KEEP_TRANSACTION;
1147         }
1148     }
1149     else
1150     {
1151         OIC_LOG(INFO, TAG, "Skiping Null response");
1152         return OC_STACK_KEEP_TRANSACTION;
1153     }
1154
1155     return  OC_STACK_DELETE_TRANSACTION;
1156 }
1157
1158
1159 /**
1160  * Discover multiple OTM enabled devices in the same IP subnet.
1161  *
1162  * @param[in] waittime      Timeout in seconds.
1163  * @param[in] ppDevicesList        List of OCProvisionDev_t.
1164  *
1165  * @return OC_STACK_OK on success otherwise error.
1166  */
1167 OCStackResult PMMultipleOwnerDeviceDiscovery(unsigned short waittime, bool isMultipleOwned, OCProvisionDev_t **ppDevicesList)
1168 {
1169     OIC_LOG(DEBUG, TAG, "IN PMMultipleOwnerEnabledDeviceDiscovery");
1170
1171     if (NULL != *ppDevicesList)
1172     {
1173         OIC_LOG(ERROR, TAG, "List is not null can cause memory leak");
1174         return OC_STACK_INVALID_PARAM;
1175     }
1176
1177     const char *DOXM_MOM_ENABLE_MULTICAST_QUERY = "/oic/sec/doxm?mom!=0&owned=TRUE";
1178     const char *DOXM_MULTIPLE_OWNED_MULTICAST_QUERY = "/oic/sec/doxm?owned=TRUE";
1179
1180     DiscoveryInfo *pDInfo = OICCalloc(1, sizeof(DiscoveryInfo));
1181     if(NULL == pDInfo)
1182     {
1183         OIC_LOG(ERROR, TAG, "PMDeviceDiscovery : Memory allocation failed.");
1184         return OC_STACK_NO_MEMORY;
1185     }
1186
1187     pDInfo->ppDevicesList = ppDevicesList;
1188     pDInfo->pCandidateList = NULL;
1189     pDInfo->isOwnedDiscovery = isMultipleOwned;
1190
1191     OCCallbackData cbData;
1192     cbData.cb = &MOTDeviceDiscoveryHandler;
1193     cbData.context = (void *)pDInfo;
1194     cbData.cd = NULL;
1195     OCStackResult res = OC_STACK_ERROR;
1196
1197     const char* query = isMultipleOwned ? DOXM_MULTIPLE_OWNED_MULTICAST_QUERY :
1198                                           DOXM_MOM_ENABLE_MULTICAST_QUERY;
1199
1200     OCDoHandle handle = NULL;
1201     res = OCDoResource(&handle, OC_REST_DISCOVER, query, 0, 0,
1202                                      CT_DEFAULT, OC_HIGH_QOS, &cbData, NULL, 0);
1203     if (res != OC_STACK_OK)
1204     {
1205         OIC_LOG(ERROR, TAG, "OCStack resource error");
1206         OICFree(pDInfo);
1207         return res;
1208     }
1209
1210     //Waiting for each response.
1211     res = PMTimeout(waittime, true);
1212     if(OC_STACK_OK != res)
1213     {
1214         OIC_LOG(ERROR, TAG, "Failed to wait response for secure discovery.");
1215         OICFree(pDInfo);
1216         OCStackResult resCancel = OCCancel(handle, OC_HIGH_QOS, NULL, 0);
1217         if(OC_STACK_OK !=  resCancel)
1218         {
1219             OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1220         }
1221         return res;
1222     }
1223     res = OCCancel(handle,OC_HIGH_QOS,NULL,0);
1224     if (OC_STACK_OK != res)
1225     {
1226         OIC_LOG(ERROR, TAG, "Failed to remove registered callback");
1227         OICFree(pDInfo);
1228         return res;
1229     }
1230     OIC_LOG(DEBUG, TAG, "OUT PMMultipleOwnerEnabledDeviceDiscovery");
1231     OICFree(pDInfo);
1232     return res;
1233 }
1234
1235 #endif //MULTIPLE_OWNER
1236
1237 static OCStackResult SecurePortDiscovery(DiscoveryInfo* discoveryInfo,
1238                                          const OCClientResponse *clientResponse)
1239 {
1240     OIC_LOG(DEBUG, TAG, "IN SecurePortDiscovery");
1241
1242     if(NULL == discoveryInfo || NULL == clientResponse)
1243     {
1244         return OC_STACK_INVALID_PARAM;
1245     }
1246
1247     OCProvisionDev_t *pDev = GetDevice(&discoveryInfo->pCandidateList,
1248                         clientResponse->devAddr.addr, clientResponse->devAddr.port);
1249     if(NULL == pDev)
1250     {
1251         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to get device");
1252         return OC_STACK_ERROR;
1253     }
1254
1255     //Try to the unicast discovery to getting secure port
1256     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1257     if(!PMGenerateQuery(false,
1258                         pDev->endpoint.addr, pDev->endpoint.port,
1259                         pDev->connType,
1260                         query, sizeof(query), OC_RSRVD_WELL_KNOWN_URI))
1261     {
1262         OIC_LOG(ERROR, TAG, "SecurePortDiscovery : Failed to generate query");
1263         return OC_STACK_ERROR;
1264     }
1265     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1266
1267     // Set filter query with rt=oic.r.doxm
1268     const char RES_DOXM_QUERY_FMT[] = "%s?%s=%s";
1269     char uri[MAX_URI_LENGTH + MAX_QUERY_LENGTH] = {0};
1270     snprintf(uri, sizeof(uri), RES_DOXM_QUERY_FMT, query,
1271             OC_RSRVD_RESOURCE_TYPE, OIC_RSRC_TYPE_SEC_DOXM);
1272
1273     OIC_LOG_V(DEBUG, TAG, "URI=%s", uri);
1274
1275     OCCallbackData cbData;
1276     cbData.cb = &SecurePortDiscoveryHandler;
1277     cbData.context = (void*)discoveryInfo;
1278     cbData.cd = NULL;
1279     OCStackResult ret = OCDoResource(&pDev->handle, OC_REST_DISCOVER, uri, 0, 0,
1280             pDev->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1281     if(OC_STACK_OK != ret)
1282     {
1283         OIC_LOG(ERROR, TAG, "Failed to Secure Port Discovery");
1284         return ret;
1285     }
1286     else
1287     {
1288         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1289     }
1290
1291     OIC_LOG(DEBUG, TAG, "OUT SecurePortDiscovery");
1292
1293     return ret;
1294 }
1295
1296 static OCStackResult SecurityVersionDiscovery(DiscoveryInfo* discoveryInfo,
1297                                               const OCClientResponse *clientResponse)
1298 {
1299     OIC_LOG(DEBUG, TAG, "IN SecurityVersionDiscovery");
1300
1301     if(NULL == discoveryInfo || NULL == clientResponse)
1302     {
1303         return OC_STACK_INVALID_PARAM;
1304     }
1305
1306     //Try to the unicast discovery to getting security version
1307     char query[MAX_URI_LENGTH+MAX_QUERY_LENGTH+1] = {0};
1308     if(!PMGenerateQuery(false,
1309                         clientResponse->devAddr.addr, clientResponse->devAddr.port,
1310                         clientResponse->connType,
1311                         query, sizeof(query), OIC_RSRC_VER_URI))
1312     {
1313         OIC_LOG(ERROR, TAG, "SecurityVersionDiscovery : Failed to generate query");
1314         return OC_STACK_ERROR;
1315     }
1316     OIC_LOG_V(DEBUG, TAG, "Query=%s", query);
1317
1318     OCCallbackData cbData;
1319     cbData.cb = &SecurityVersionDiscoveryHandler;
1320     cbData.context = (void*)discoveryInfo;
1321     cbData.cd = NULL;
1322     OCStackResult ret = OCDoResource(NULL, OC_REST_DISCOVER, query, 0, 0,
1323             clientResponse->connType, OC_HIGH_QOS, &cbData, NULL, 0);
1324     if(OC_STACK_OK != ret)
1325     {
1326         OIC_LOG(ERROR, TAG, "Failed to Security Version Discovery");
1327         return ret;
1328     }
1329     else
1330     {
1331         OIC_LOG_V(INFO, TAG, "OCDoResource with [%s] Success", query);
1332     }
1333
1334     OIC_LOG(DEBUG, TAG, "OUT SecurityVersionDiscovery");
1335
1336     return ret;
1337 }
1338
1339 /**
1340  * Function to print OCProvisionDev_t for debug purpose.
1341  *
1342  * @param[in] pDev Pointer to OCProvisionDev_t. It's information will be printed by OIC_LOG_XX
1343  *
1344  */
1345 void PMPrintOCProvisionDev(const OCProvisionDev_t* pDev)
1346 {
1347     if (pDev)
1348     {
1349         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t Information +++++");
1350         OIC_LOG_V(DEBUG, TAG, "IP %s", pDev->endpoint.addr);
1351         OIC_LOG_V(DEBUG, TAG, "PORT %d", pDev->endpoint.port);
1352         OIC_LOG_V(DEBUG, TAG, "S-PORT %d", pDev->securePort);
1353         OIC_LOG(DEBUG, TAG, "++++++++++++++++++++++++++++++++++++++++");
1354     }
1355     else
1356     {
1357         OIC_LOG(DEBUG, TAG, "+++++ OCProvisionDev_t is NULL +++++");
1358     }
1359 }
1360
1361 bool PMDeleteFromUUIDList(OCUuidList_t **pUuidList, OicUuid_t *targetId)
1362 {
1363     if(*pUuidList == NULL || targetId == NULL)
1364     {
1365         return false;
1366     }
1367     OCUuidList_t *tmp1 = NULL,*tmp2=NULL;
1368     LL_FOREACH_SAFE(*pUuidList, tmp1, tmp2)
1369     {
1370         if(0 == memcmp(tmp1->dev.id, targetId->id, sizeof(targetId->id)))
1371         {
1372             LL_DELETE(*pUuidList, tmp1);
1373             OICFree(tmp1);
1374             return true;
1375         }
1376     }
1377     return false;
1378 }