resource/csdk/stack/src/ocresource.c

   1 //******************************************************************
   2 //
   3 // Copyright 2014 Intel Mobile Communications GmbH 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
  21 // Defining _POSIX_C_SOURCE macro with 200112L (or greater) as value
  22 // causes header files to expose definitions
  23 // corresponding to the POSIX.1-2001 base
  24 // specification (excluding the XSI extension).
  25 // For POSIX.1-2001 base specification,
  26 // Refer http://pubs.opengroup.org/onlinepubs/009695399/
  27 #define _POSIX_C_SOURCE 200112L
  28 #ifndef _GNU_SOURCE
  29 #define _GNU_SOURCE
  30 #endif
  31
  32 #include "iotivity_config.h"
  33 #ifdef HAVE_STRING_H
  34 #include <string.h>
  35 #endif
  36 #ifdef HAVE_STRINGS_H
  37 #include <strings.h>
  38 #endif
  39
  40 #include "ocresource.h"
  41 #include "ocresourcehandler.h"
  42 #include "ocobserve.h"
  43 #include "occollection.h"
  44 #include "oic_malloc.h"
  45 #include "oic_string.h"
  46 #include "logger.h"
  47 #include "cJSON.h"
  48 #include "ocpayload.h"
  49 #include "secureresourcemanager.h"
  50 #include "cacommon.h"
  51 #include "cainterface.h"
  52 #include "ocpayload.h"
  53
  54 #ifdef ROUTING_GATEWAY
  55 #include "routingmanager.h"
  56 #endif
  57
  58 #ifdef RD_SERVER
  59 #include "rd_database.h"
  60 #endif
  61
  62 /// Module Name
  63 #define TAG "OIC_RI_RESOURCE"
  64
  65 #define VERIFY_SUCCESS(op, successCode) { if (op != successCode) \
  66             {OIC_LOG_V(FATAL, TAG, "%s failed!!", #op); goto exit;} }
  67
  68 #define VERIFY_NON_NULL(arg, logLevel, retVal) { if (!(arg)) { OIC_LOG((logLevel), \
  69              TAG, #arg " is NULL"); return (retVal); } }
  70
  71 #include "platform_features.h"
  72
  73 extern OCResource *headResource;
  74 static OCPlatformInfo savedPlatformInfo = {0};
  75 static OCDeviceInfo savedDeviceInfo = {0};
  76
  77 /**
  78  * Prepares a Payload for response.
  79  */
  80 static OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
  81                                                   OCDiscoveryPayload* payload,
  82                                                   OCDevAddr *endpoint);
  83
  84 //-----------------------------------------------------------------------------
  85 // Default resource entity handler function
  86 //-----------------------------------------------------------------------------
  87 OCEntityHandlerResult defaultResourceEHandler(OCEntityHandlerFlag flag,
  88         OCEntityHandlerRequest * request, void* callbackParam)
  89 {
  90     //TODO ("Implement me!!!!");
  91     // TODO:  remove silence unused param warnings
  92     (void) flag;
  93     (void) request;
  94     (void) callbackParam;
  95     return  OC_EH_OK; // Making sure that the Default EH and the Vendor EH have matching signatures
  96 }
  97
  98 /* This method will retrieve the port at which the secure resource is hosted */
  99 static OCStackResult GetSecurePortInfo(OCDevAddr *endpoint, uint16_t *port)
 100 {
 101     uint16_t p = 0;
 102
 103     if (endpoint->adapter == OC_ADAPTER_IP)
 104     {
 105         if (endpoint->flags & OC_IP_USE_V6)
 106         {
 107             p = caglobals.ip.u6s.port;
 108         }
 109         else if (endpoint->flags & OC_IP_USE_V4)
 110         {
 111             p = caglobals.ip.u4s.port;
 112         }
 113     }
 114
 115     *port = p;
 116     return OC_STACK_OK;
 117 }
 118
 119 #ifdef TCP_ADAPTER
 120 /* This method will retrieve the tcp port */
 121 static OCStackResult GetTCPPortInfo(OCDevAddr *endpoint, uint16_t *port)
 122 {
 123     uint16_t p = 0;
 124
 125     if (endpoint->adapter == OC_ADAPTER_IP)
 126     {
 127         if (endpoint->flags & OC_IP_USE_V4)
 128         {
 129             p = caglobals.tcp.ipv4.port;
 130         }
 131         else if (endpoint->flags & OC_IP_USE_V6)
 132         {
 133             p = caglobals.tcp.ipv6.port;
 134         }
 135     }
 136
 137     *port = p;
 138     return OC_STACK_OK;
 139 }
 140 #endif
 141
 142 /*
 143  * Function will extract 0, 1 or 2 filters from query.
 144  * More than 2 filters or unsupported filters will result in error.
 145  * If both filters are of the same supported type, the 2nd one will be picked.
 146  * Resource and device filters in the SAME query are NOT validated
 147  * and resources will likely not clear filters.
 148  */
 149 static OCStackResult ExtractFiltersFromQuery(char *query, char **filterOne, char **filterTwo)
 150 {
 151
 152     char *key = NULL;
 153     char *value = NULL;
 154     char *restOfQuery = NULL;
 155     int numKeyValuePairsParsed = 0;
 156
 157     *filterOne = NULL;
 158     *filterTwo = NULL;
 159
 160     OIC_LOG_V(INFO, TAG, "Extracting params from %s", query);
 161
 162     if (strnlen(query, MAX_QUERY_LENGTH) >= MAX_QUERY_LENGTH)
 163     {
 164         OIC_LOG(ERROR, TAG, "Query exceeds maximum length.");
 165         return OC_STACK_INVALID_QUERY;
 166     }
 167
 168     char *keyValuePair = strtok_r (query, OC_QUERY_SEPARATOR, &restOfQuery);
 169
 170     while(keyValuePair)
 171     {
 172         if (numKeyValuePairsParsed >= 2)
 173         {
 174             OIC_LOG(ERROR, TAG, "More than 2 queries params in URI.");
 175             return OC_STACK_INVALID_QUERY;
 176         }
 177
 178         key = strtok_r(keyValuePair, OC_KEY_VALUE_DELIMITER, &value);
 179
 180         if (!key || !value)
 181         {
 182             return OC_STACK_INVALID_QUERY;
 183         }
 184         else if (strncasecmp(key, OC_RSRVD_INTERFACE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 185         {
 186             *filterOne = value;     // if
 187         }
 188         else if (strncasecmp(key, OC_RSRVD_RESOURCE_TYPE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 189         {
 190             *filterTwo = value;     // rt
 191         }
 192         else
 193         {
 194             OIC_LOG_V(ERROR, TAG, "Unsupported query key: %s", key);
 195             return OC_STACK_INVALID_QUERY;
 196         }
 197         ++numKeyValuePairsParsed;
 198
 199         keyValuePair = strtok_r(NULL, OC_QUERY_SEPARATOR, &restOfQuery);
 200     }
 201
 202     OIC_LOG_V(INFO, TAG, "Extracted params if: %s and rt: %s.", *filterOne, *filterTwo);
 203     return OC_STACK_OK;
 204 }
 205
 206 static OCVirtualResources GetTypeOfVirtualURI(const char *uriInRequest)
 207 {
 208     if (strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_URI) == 0)
 209     {
 210         return OC_WELL_KNOWN_URI;
 211     }
 212     else if (strcmp(uriInRequest, OC_RSRVD_DEVICE_URI) == 0)
 213     {
 214         return OC_DEVICE_URI;
 215     }
 216     else if (strcmp(uriInRequest, OC_RSRVD_PLATFORM_URI) == 0)
 217     {
 218         return OC_PLATFORM_URI;
 219     }
 220     else if (strcmp(uriInRequest, OC_RSRVD_RESOURCE_TYPES_URI) == 0)
 221     {
 222         return OC_RESOURCE_TYPES_URI;
 223     }
 224 #ifdef ROUTING_GATEWAY
 225     else if (0 == strcmp(uriInRequest, OC_RSRVD_GATEWAY_URI))
 226     {
 227         return OC_GATEWAY_URI;
 228     }
 229 #endif
 230 #ifdef WITH_PRESENCE
 231     else if (strcmp(uriInRequest, OC_RSRVD_PRESENCE_URI) == 0)
 232     {
 233         return OC_PRESENCE;
 234     }
 235 #endif //WITH_PRESENCE
 236
 237 #ifdef MQ_BROKER
 238     else if (0 == strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_MQ_URI))
 239     {
 240         return OC_MQ_BROKER_URI;
 241     }
 242 #endif //MQ_BROKER
 243
 244 #ifdef TCP_ADAPTER
 245     else if (strcmp(uriInRequest, OC_RSRVD_KEEPALIVE_URI) == 0)
 246     {
 247         return OC_KEEPALIVE_RESOURCE_URI;
 248     }
 249 #endif
 250
 251     return OC_UNKNOWN_URI;
 252 }
 253
 254 static OCStackResult getQueryParamsForFiltering (OCVirtualResources uri, char *query,
 255                                             char **filterOne, char **filterTwo)
 256 {
 257     if(!filterOne || !filterTwo)
 258     {
 259         return OC_STACK_INVALID_PARAM;
 260     }
 261
 262     *filterOne = NULL;
 263     *filterTwo = NULL;
 264
 265     #ifdef WITH_PRESENCE
 266     if (uri == OC_PRESENCE)
 267     {
 268         //Nothing needs to be done, except for pass a OC_PRESENCE query through as OC_STACK_OK.
 269         OIC_LOG(INFO, TAG, "OC_PRESENCE Request for virtual resource.");
 270         return OC_STACK_OK;
 271     }
 272     #endif
 273
 274     OCStackResult result = OC_STACK_OK;
 275
 276     if (query && *query)
 277     {
 278         result = ExtractFiltersFromQuery(query, filterOne, filterTwo);
 279     }
 280
 281     return result;
 282 }
 283
 284 OCStackResult BuildResponseRepresentation(const OCResource *resourcePtr,
 285                     OCRepPayload** payload)
 286 {
 287     OCRepPayload *tempPayload = OCRepPayloadCreate();
 288
 289     if (!resourcePtr)
 290     {
 291         OCRepPayloadDestroy(tempPayload);
 292         return OC_STACK_INVALID_PARAM;
 293     }
 294
 295     if(!tempPayload)
 296     {
 297         return OC_STACK_NO_MEMORY;
 298     }
 299
 300     OCRepPayloadSetUri(tempPayload, resourcePtr->uri);
 301
 302     OCResourceType *resType = resourcePtr->rsrcType;
 303     while(resType)
 304     {
 305         OCRepPayloadAddResourceType(tempPayload, resType->resourcetypename);
 306         resType = resType->next;
 307     }
 308
 309     OCResourceInterface *resInterface = resourcePtr->rsrcInterface;
 310     while(resInterface)
 311     {
 312         OCRepPayloadAddInterface(tempPayload, resInterface->name);
 313         resInterface = resInterface->next;
 314     }
 315
 316     OCAttribute *resAttrib = resourcePtr->rsrcAttributes;
 317     while(resAttrib)
 318     {
 319         OCRepPayloadSetPropString(tempPayload, resAttrib->attrName,
 320                                 resAttrib->attrValue);
 321         resAttrib = resAttrib->next;
 322     }
 323
 324     if(!*payload)
 325     {
 326         *payload = tempPayload;
 327     }
 328     else
 329     {
 330         OCRepPayloadAppend(*payload, tempPayload);
 331     }
 332
 333     return OC_STACK_OK;
 334 }
 335
 336 OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
 337                         OCDiscoveryPayload *payload, OCDevAddr *devAddr)
 338 {
 339     if (!resourcePtr || !payload)
 340     {
 341         return OC_STACK_INVALID_PARAM;
 342     }
 343     uint16_t securePort = 0;
 344     if (resourcePtr->resourceProperties & OC_SECURE)
 345     {
 346        if (GetSecurePortInfo(devAddr, &securePort) != OC_STACK_OK)
 347        {
 348            securePort = 0;
 349        }
 350     }
 351
 352 #ifdef TCP_ADAPTER
 353     uint16_t tcpPort = 0;
 354     if (GetTCPPortInfo(devAddr, &tcpPort) != OC_STACK_OK)
 355     {
 356         tcpPort = 0;
 357     }
 358     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort, tcpPort);
 359 #else
 360     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort);
 361 #endif
 362
 363     return OC_STACK_OK;
 364 }
 365
 366 uint8_t IsCollectionResource (OCResource *resource)
 367 {
 368     if(!resource)
 369     {
 370         return 0;
 371     }
 372
 373     if(resource->rsrcChildResourcesHead != NULL)
 374     {
 375         return 1;
 376     }
 377
 378     return 0;
 379 }
 380
 381 OCResource *FindResourceByUri(const char* resourceUri)
 382 {
 383     if(!resourceUri)
 384     {
 385         return NULL;
 386     }
 387
 388     OCResource * pointer = headResource;
 389     while (pointer)
 390     {
 391         if (strcmp(resourceUri, pointer->uri) == 0)
 392         {
 393             return pointer;
 394         }
 395         pointer = pointer->next;
 396     }
 397     OIC_LOG_V(INFO, TAG, "Resource %s not found", resourceUri);
 398     return NULL;
 399 }
 400
 401
 402 OCStackResult DetermineResourceHandling (const OCServerRequest *request,
 403                                          ResourceHandling *handling,
 404                                          OCResource **resource)
 405 {
 406     if(!request || !handling || !resource)
 407     {
 408         return OC_STACK_INVALID_PARAM;
 409     }
 410
 411     OIC_LOG_V(INFO, TAG, "DetermineResourceHandling for %s", request->resourceUrl);
 412
 413     // Check if virtual resource
 414     if (GetTypeOfVirtualURI(request->resourceUrl) != OC_UNKNOWN_URI)
 415     {
 416         OIC_LOG_V (INFO, TAG, "%s is virtual", request->resourceUrl);
 417         *handling = OC_RESOURCE_VIRTUAL;
 418         *resource = headResource;
 419         return OC_STACK_OK;
 420     }
 421     if (strlen((const char*)(request->resourceUrl)) == 0)
 422     {
 423         // Resource URL not specified
 424         *handling = OC_RESOURCE_NOT_SPECIFIED;
 425         return OC_STACK_NO_RESOURCE;
 426     }
 427     else
 428     {
 429         OCResource *resourcePtr = FindResourceByUri((const char*)request->resourceUrl);
 430         *resource = resourcePtr;
 431         if (!resourcePtr)
 432         {
 433             if(defaultDeviceHandler)
 434             {
 435                 *handling = OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER;
 436                 return OC_STACK_OK;
 437             }
 438
 439             // Resource does not exist
 440             // and default device handler does not exist
 441             *handling = OC_RESOURCE_NOT_SPECIFIED;
 442             return OC_STACK_NO_RESOURCE;
 443         }
 444
 445         if (IsCollectionResource (resourcePtr))
 446         {
 447             // Collection resource
 448             if (resourcePtr->entityHandler != defaultResourceEHandler)
 449             {
 450                 *handling = OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER;
 451                 return OC_STACK_OK;
 452             }
 453             else
 454             {
 455                 *handling = OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER;
 456                 return OC_STACK_OK;
 457             }
 458         }
 459         else
 460         {
 461             // Resource not a collection
 462             if (resourcePtr->entityHandler != defaultResourceEHandler)
 463             {
 464                 *handling = OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER;
 465                 return OC_STACK_OK;
 466             }
 467             else
 468             {
 469                 *handling = OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER;
 470                 return OC_STACK_OK;
 471             }
 472         }
 473     }
 474 }
 475
 476 OCStackResult EntityHandlerCodeToOCStackCode(OCEntityHandlerResult ehResult)
 477 {
 478     OCStackResult result;
 479
 480     switch (ehResult)
 481     {
 482         case OC_EH_OK:
 483         case OC_EH_CONTENT:
 484         case OC_EH_VALID:
 485             result = OC_STACK_OK;
 486             break;
 487         case OC_EH_SLOW:
 488             result = OC_STACK_SLOW_RESOURCE;
 489             break;
 490         case OC_EH_ERROR:
 491             result = OC_STACK_ERROR;
 492             break;
 493         case OC_EH_FORBIDDEN:
 494             result = OC_STACK_FORBIDDEN_REQ;
 495             break;
 496         case OC_EH_INTERNAL_SERVER_ERROR:
 497             result = OC_STACK_INTERNAL_SERVER_ERROR;
 498             break;
 499         case OC_EH_RESOURCE_CREATED:
 500             result = OC_STACK_RESOURCE_CREATED;
 501             break;
 502         case OC_EH_RESOURCE_DELETED:
 503             result = OC_STACK_RESOURCE_DELETED;
 504             break;
 505         case OC_EH_CHANGED:
 506             result = OC_STACK_RESOURCE_CHANGED;
 507             break;
 508         case OC_EH_RESOURCE_NOT_FOUND:
 509             result = OC_STACK_NO_RESOURCE;
 510             break;
 511         default:
 512             result = OC_STACK_ERROR;
 513     }
 514
 515     return result;
 516 }
 517
 518 static bool resourceMatchesRTFilter(OCResource *resource, char *resourceTypeFilter)
 519 {
 520     if (!resource)
 521     {
 522         return false;
 523     }
 524
 525     // Null or empty is analogous to no filter.
 526     if (resourceTypeFilter == NULL || *resourceTypeFilter == 0)
 527     {
 528         return true;
 529     }
 530
 531     OCResourceType *resourceTypePtr = resource->rsrcType;
 532
 533     while (resourceTypePtr)
 534     {
 535         if (strcmp (resourceTypePtr->resourcetypename, resourceTypeFilter) == 0)
 536         {
 537             return true;
 538         }
 539         resourceTypePtr = resourceTypePtr->next;
 540     }
 541
 542     OIC_LOG_V(INFO, TAG, "%s does not contain rt=%s.", resource->uri, resourceTypeFilter);
 543     return false;
 544 }
 545
 546 static bool resourceMatchesIFFilter(OCResource *resource, char *interfaceFilter)
 547 {
 548     if (!resource)
 549     {
 550         return false;
 551     }
 552
 553     // Null or empty is analogous to no filter.
 554     if (interfaceFilter == NULL || *interfaceFilter == 0)
 555     {
 556         return true;
 557     }
 558
 559     OCResourceInterface *interfacePtr = resource->rsrcInterface;
 560
 561     while (interfacePtr)
 562     {
 563         if ((strcmp (interfacePtr->name, interfaceFilter) == 0) &&
 564             (strcmp (OC_RSRVD_INTERFACE_LL, interfaceFilter) == 0 ||
 565              strcmp (OC_RSRVD_INTERFACE_DEFAULT, interfaceFilter) == 0))
 566         {
 567             return true;
 568         }
 569         interfacePtr = interfacePtr->next;
 570     }
 571
 572     OIC_LOG_V(INFO, TAG, "%s does not contain if=%s.", resource->uri, interfaceFilter);
 573     return false;
 574 }
 575
 576 /*
 577  * If the filters are null, they will be assumed to NOT be present
 578  * and the resource will not be matched against them.
 579  * Function will return true if all non null AND non empty filters passed in find a match.
 580  */
 581 static bool includeThisResourceInResponse(OCResource *resource,
 582                                           char *interfaceFilter,
 583                                           char *resourceTypeFilter)
 584 {
 585     if (!resource)
 586     {
 587         OIC_LOG(ERROR, TAG, "Invalid resource");
 588         return false;
 589     }
 590
 591     if (resource->resourceProperties & OC_EXPLICIT_DISCOVERABLE)
 592     {
 593         /*
 594          * At least one valid filter should be available to
 595          * include the resource in discovery response
 596          */
 597         if (!(resourceTypeFilter && *resourceTypeFilter))
 598         {
 599             OIC_LOG_V(INFO, TAG, "%s no query string for EXPLICIT_DISCOVERABLE \
 600                 resource", resource->uri);
 601             return false;
 602         }
 603     }
 604     else if ( !(resource->resourceProperties & OC_ACTIVE) ||
 605          !(resource->resourceProperties & OC_DISCOVERABLE))
 606     {
 607         OIC_LOG_V(INFO, TAG, "%s not ACTIVE or DISCOVERABLE", resource->uri);
 608         return false;
 609     }
 610
 611     return resourceMatchesIFFilter(resource, interfaceFilter) &&
 612            resourceMatchesRTFilter(resource, resourceTypeFilter);
 613
 614 }
 615
 616 OCStackResult SendNonPersistantDiscoveryResponse(OCServerRequest *request, OCResource *resource,
 617                                 OCPayload *discoveryPayload, OCEntityHandlerResult ehResult)
 618 {
 619     OCEntityHandlerResponse response = {0};
 620
 621     response.ehResult = ehResult;
 622     response.payload = discoveryPayload;
 623     response.persistentBufferFlag = 0;
 624     response.requestHandle = (OCRequestHandle) request;
 625     response.resourceHandle = (OCResourceHandle) resource;
 626
 627     return OCDoResponse(&response);
 628 }
 629
 630 static OCStackResult HandleVirtualResource (OCServerRequest *request, OCResource* resource)
 631 {
 632     if (!request || !resource)
 633     {
 634         return OC_STACK_INVALID_PARAM;
 635     }
 636
 637     OCStackResult discoveryResult = OC_STACK_ERROR;
 638     OCPayload* payload = NULL;
 639
 640     OIC_LOG(INFO, TAG, "Entering HandleVirtualResource");
 641
 642     OCVirtualResources virtualUriInRequest = GetTypeOfVirtualURI (request->resourceUrl);
 643
 644     // Step 1: Generate the response to discovery request
 645     if (virtualUriInRequest == OC_WELL_KNOWN_URI
 646 #ifdef MQ_BROKER
 647             || virtualUriInRequest == OC_MQ_BROKER_URI
 648 #endif
 649             )
 650     {
 651         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 652         {
 653             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 654             return OC_STACK_UNAUTHORIZED_REQ;
 655         }
 656
 657         char *interfaceQuery = NULL;
 658         char *resourceTypeQuery = NULL;
 659
 660         discoveryResult = getQueryParamsForFiltering (virtualUriInRequest, request->query,
 661                 &interfaceQuery, &resourceTypeQuery);
 662         bool interfaceQueryAllocated = false;
 663         if (!interfaceQuery && !resourceTypeQuery)
 664         {
 665             interfaceQueryAllocated = true;
 666             interfaceQuery = OICStrdup(OC_RSRVD_INTERFACE_LL);
 667         }
 668
 669         if (discoveryResult == OC_STACK_OK)
 670         {
 671             payload = (OCPayload *)OCDiscoveryPayloadCreate();
 672
 673             if (payload)
 674             {
 675                 OCDiscoveryPayload *discPayload = (OCDiscoveryPayload *)payload;
 676                 bool foundResourceAtRD = false;
 677
 678                 if (!resourceTypeQuery && interfaceQuery && (0 == strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 679                 {
 680                     OCResourceProperty prop = OC_DISCOVERABLE;
 681 #ifdef MQ_BROKER
 682                     if (OC_MQ_BROKER_URI == virtualUriInRequest)
 683                     {
 684                         prop = OC_MQ_BROKER;
 685                     }
 686 #endif
 687
 688                     for (; resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 689                     {
 690                         foundResourceAtRD = false;
 691 #ifdef RD_SERVER
 692                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 693                         {
 694                             if (OC_STACK_OK == OCRDDatabaseCheckResources(interfaceQuery, resourceTypeQuery, discPayload))
 695                             {
 696                                 foundResourceAtRD = true;
 697                                 discoveryResult = OC_STACK_OK;
 698                             }
 699                         }
 700 #endif
 701                         if (!foundResourceAtRD && (resource->resourceProperties & prop))
 702                         {
 703                             discoveryResult = BuildVirtualResourceResponse(resource, discPayload, &request->devAddr);
 704                         }
 705                     }
 706                 }
 707                 else
 708                 {
 709                     if (interfaceQuery && (0 != strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 710                     {
 711                         discPayload->uri = OICStrdup(OC_RSRVD_WELL_KNOWN_URI);
 712                         VERIFY_NON_NULL(discPayload->uri, ERROR, OC_STACK_NO_MEMORY);
 713                         if (savedDeviceInfo.deviceName)
 714                         {
 715                             discPayload->name = OICStrdup(savedDeviceInfo.deviceName);
 716                             VERIFY_NON_NULL(discPayload->name, ERROR, OC_STACK_NO_MEMORY);
 717                         }
 718                         discPayload->type = (OCStringLL*)OICCalloc(1, sizeof(OCStringLL));
 719                         VERIFY_NON_NULL(discPayload->type, ERROR, OC_STACK_NO_MEMORY);
 720                         discPayload->type->value = OICStrdup(OC_RSRVD_RESOURCE_TYPE_RES);
 721                         VERIFY_NON_NULL(discPayload->type->value, ERROR, OC_STACK_NO_MEMORY);
 722                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_LL);
 723                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_DEFAULT);
 724                         VERIFY_NON_NULL(discPayload->iface, ERROR, OC_STACK_NO_MEMORY);
 725                     }
 726                     for (;resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 727                     {
 728 #ifdef RD_SERVER
 729                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 730                         {
 731                             if (OC_STACK_OK == OCRDDatabaseCheckResources(interfaceQuery, resourceTypeQuery, discPayload))
 732                             {
 733                                 foundResourceAtRD = true;
 734                                 discoveryResult = OC_STACK_OK;
 735                             }
 736                         }
 737 #endif
 738                         if (!foundResourceAtRD && includeThisResourceInResponse(resource, interfaceQuery, resourceTypeQuery))
 739                         {
 740                             discoveryResult = BuildVirtualResourceResponse(resource, discPayload, &request->devAddr);
 741                         }
 742                     }
 743                     // Set discoveryResult appropriately if no 'valid' resources are available
 744                     if (discPayload->resources == NULL && !foundResourceAtRD)
 745                     {
 746                         discoveryResult = OC_STACK_NO_RESOURCE;
 747                     }
 748                 }
 749                 if (discoveryResult == OC_STACK_OK && foundResourceAtRD == false)
 750                 {
 751                     discPayload->sid = (char *)OICCalloc(1, UUID_STRING_SIZE);
 752                     VERIFY_NON_NULL(discPayload->sid, ERROR, OC_STACK_NO_MEMORY);
 753
 754                     const char* uid = OCGetServerInstanceIDString();
 755                     if (uid)
 756                     {
 757                         memcpy(discPayload->sid, uid, UUID_STRING_SIZE);
 758                     }
 759                 }
 760             }
 761             else
 762             {
 763                 discoveryResult = OC_STACK_NO_MEMORY;
 764             }
 765
 766         }
 767         else
 768         {
 769             OIC_LOG_V(ERROR, TAG, "Error (%d) parsing query.", discoveryResult);
 770         }
 771         if (interfaceQueryAllocated)
 772         {
 773             OICFree(interfaceQuery);
 774         }
 775     }
 776     else if (virtualUriInRequest == OC_DEVICE_URI)
 777     {
 778         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 779         {
 780             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 781             return OC_STACK_UNAUTHORIZED_REQ;
 782         }
 783
 784         const char* deviceId = OCGetServerInstanceIDString();
 785         if (!deviceId)
 786         {
 787             discoveryResult = OC_STACK_ERROR;
 788         }
 789         else
 790         {
 791             char *dataModelVersions = OCCreateString(savedDeviceInfo.dataModelVersions);
 792             if (!dataModelVersions)
 793             {
 794                 discoveryResult = OC_STACK_NO_MEMORY;
 795             }
 796             else
 797             {
 798                 payload = (OCPayload*) OCDevicePayloadCreate(deviceId, savedDeviceInfo.deviceName,
 799                     savedDeviceInfo.types, savedDeviceInfo.specVersion, dataModelVersions);
 800                 if (!payload)
 801                 {
 802                      discoveryResult = OC_STACK_NO_MEMORY;
 803                 }
 804                 else
 805                 {
 806                      discoveryResult = OC_STACK_OK;
 807                 }
 808                 OICFree(dataModelVersions);
 809             }
 810         }
 811     }
 812     else if (virtualUriInRequest == OC_PLATFORM_URI)
 813     {
 814         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 815         {
 816             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 817             return OC_STACK_UNAUTHORIZED_REQ;
 818         }
 819
 820         payload = (OCPayload*)OCPlatformPayloadCreate(&savedPlatformInfo);
 821         if (!payload)
 822         {
 823             discoveryResult = OC_STACK_NO_MEMORY;
 824         }
 825         else
 826         {
 827             discoveryResult = OC_STACK_OK;
 828         }
 829     }
 830 #ifdef ROUTING_GATEWAY
 831     else if (OC_GATEWAY_URI == virtualUriInRequest)
 832     {
 833         // Received request for a gateway
 834         OIC_LOG(INFO, TAG, "Request is for Gateway Virtual Request");
 835         discoveryResult = RMHandleGatewayRequest(request, resource);
 836
 837     }
 838 #endif
 839 #ifdef TCP_ADAPTER
 840     else if (OC_KEEPALIVE_RESOURCE_URI == virtualUriInRequest)
 841     {
 842         // Received request for a keepalive
 843         OIC_LOG(INFO, TAG, "Request is for KeepAlive Request");
 844         discoveryResult = HandleKeepAliveRequest(request, resource);
 845     }
 846 #endif
 847     /**
 848      * Step 2: Send the discovery response
 849      *
 850      * Iotivity should respond to discovery requests in below manner:
 851      * 1)If query filter matching fails and discovery request is multicast,
 852      *   it should NOT send any response.
 853      * 2)If query filter matching fails and discovery request is unicast,
 854      *   it should send an error(RESOURCE_NOT_FOUND - 404) response.
 855      * 3)If Server does not have any 'DISCOVERABLE' resources and discovery
 856      *   request is multicast, it should NOT send any response.
 857      * 4)If Server does not have any 'DISCOVERABLE' resources and discovery
 858      *   request is unicast, it should send an error(RESOURCE_NOT_FOUND - 404) response.
 859      */
 860
 861 #ifdef WITH_PRESENCE
 862     if ((virtualUriInRequest == OC_PRESENCE) &&
 863         (resource->resourceProperties & OC_ACTIVE))
 864     {
 865         // Need to send ACK when the request is CON.
 866         if (request->qos == OC_HIGH_QOS)
 867         {
 868             CAEndpoint_t endpoint = { .adapter = CA_DEFAULT_ADAPTER };
 869             CopyDevAddrToEndpoint(&request->devAddr, &endpoint);
 870             SendDirectStackResponse(&endpoint, request->coapID, CA_EMPTY, CA_MSG_ACKNOWLEDGE,
 871                                     0, NULL, NULL, 0, NULL, CA_RESPONSE_FOR_RES);
 872         }
 873         FindAndDeleteServerRequest(request);
 874
 875         // Presence uses observer notification api to respond via SendPresenceNotification.
 876         SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
 877     }
 878     else
 879 #endif
 880 #if ROUTING_GATEWAY
 881     // Gateway uses the RMHandleGatewayRequest to respond to the request.
 882     if (OC_GATEWAY_URI != virtualUriInRequest)
 883 #endif
 884     {
 885 #if TCP_ADAPTER
 886         // KeepAlive uses the HandleKeepAliveRequest to respond to the request.
 887         if (OC_KEEPALIVE_RESOURCE_URI != virtualUriInRequest)
 888 #endif
 889         {
 890             if(discoveryResult == OC_STACK_OK)
 891             {
 892                 SendNonPersistantDiscoveryResponse(request, resource, payload, OC_EH_OK);
 893             }
 894             else if(((request->devAddr.flags &  OC_MULTICAST) == false) &&
 895                 (request->devAddr.adapter != OC_ADAPTER_RFCOMM_BTEDR) &&
 896                 (request->devAddr.adapter != OC_ADAPTER_GATT_BTLE))
 897             {
 898                 OIC_LOG_V(ERROR, TAG, "Sending a (%d) error to (%d) discovery request",
 899                     discoveryResult, virtualUriInRequest);
 900                 SendNonPersistantDiscoveryResponse(request, resource, NULL,
 901                     (discoveryResult == OC_STACK_NO_RESOURCE) ?
 902                             OC_EH_RESOURCE_NOT_FOUND : OC_EH_ERROR);
 903             }
 904             else
 905             {
 906                 // Ignoring the discovery request as per RFC 7252, Section #8.2
 907                 OIC_LOG(INFO, TAG, "Silently ignoring the request since no useful data to send.");
 908                 // the request should be removed.
 909                 // since it never remove and causes a big memory waste.
 910                 FindAndDeleteServerRequest(request);
 911             }
 912         }
 913     }
 914
 915     OCPayloadDestroy(payload);
 916
 917     return OC_STACK_OK;
 918 }
 919
 920 static OCStackResult
 921 HandleDefaultDeviceEntityHandler (OCServerRequest *request)
 922 {
 923     if(!request)
 924     {
 925         return OC_STACK_INVALID_PARAM;
 926     }
 927
 928     OCStackResult result = OC_STACK_OK;
 929     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 930     OCEntityHandlerRequest ehRequest = {0};
 931
 932     OIC_LOG(INFO, TAG, "Entering HandleResourceWithDefaultDeviceEntityHandler");
 933     result = FormOCEntityHandlerRequest(&ehRequest,
 934                                         (OCRequestHandle) request,
 935                                         request->method,
 936                                         &request->devAddr,
 937                                         (OCResourceHandle) NULL, request->query,
 938                                         PAYLOAD_TYPE_REPRESENTATION,
 939                                         request->payload,
 940                                         request->payloadSize,
 941                                         request->numRcvdVendorSpecificHeaderOptions,
 942                                         request->rcvdVendorSpecificHeaderOptions,
 943                                         (OCObserveAction)request->observationOption,
 944                                         (OCObservationId)0,
 945                                         request->coapID);
 946     VERIFY_SUCCESS(result, OC_STACK_OK);
 947
 948     // At this point we know for sure that defaultDeviceHandler exists
 949     ehResult = defaultDeviceHandler(OC_REQUEST_FLAG, &ehRequest,
 950                                   (char*) request->resourceUrl, defaultDeviceHandlerCallbackParameter);
 951     if(ehResult == OC_EH_SLOW)
 952     {
 953         OIC_LOG(INFO, TAG, "This is a slow resource");
 954         request->slowFlag = 1;
 955     }
 956     else if(ehResult == OC_EH_ERROR)
 957     {
 958         FindAndDeleteServerRequest(request);
 959     }
 960     result = EntityHandlerCodeToOCStackCode(ehResult);
 961 exit:
 962     OCPayloadDestroy(ehRequest.payload);
 963     return result;
 964 }
 965
 966 static OCStackResult
 967 HandleResourceWithEntityHandler (OCServerRequest *request,
 968                                  OCResource *resource,
 969                                  uint8_t collectionResource)
 970 {
 971     if(!request || ! resource)
 972     {
 973         return OC_STACK_INVALID_PARAM;
 974     }
 975
 976     OCStackResult result = OC_STACK_ERROR;
 977     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 978     OCEntityHandlerFlag ehFlag = OC_REQUEST_FLAG;
 979     ResourceObserver *resObs = NULL;
 980
 981     OCEntityHandlerRequest ehRequest = {0};
 982
 983     OIC_LOG(INFO, TAG, "Entering HandleResourceWithEntityHandler");
 984     OCPayloadType type = PAYLOAD_TYPE_REPRESENTATION;
 985     // check the security resource
 986     if (request && request->resourceUrl && SRMIsSecurityResourceURI(request->resourceUrl))
 987     {
 988         type = PAYLOAD_TYPE_SECURITY;
 989
 990     }
 991
 992     result = FormOCEntityHandlerRequest(&ehRequest,
 993                                         (OCRequestHandle)request,
 994                                         request->method,
 995                                         &request->devAddr,
 996                                         (OCResourceHandle)resource,
 997                                         request->query,
 998                                         type,
 999                                         request->payload,
1000                                         request->payloadSize,
1001                                         request->numRcvdVendorSpecificHeaderOptions,
1002                                         request->rcvdVendorSpecificHeaderOptions,
1003                                         (OCObserveAction)request->observationOption,
1004                                         0,
1005                                         request->coapID);
1006     VERIFY_SUCCESS(result, OC_STACK_OK);
1007
1008     if(ehRequest.obsInfo.action == OC_OBSERVE_NO_OPTION)
1009     {
1010         OIC_LOG(INFO, TAG, "No observation requested");
1011         ehFlag = OC_REQUEST_FLAG;
1012     }
1013     else if(ehRequest.obsInfo.action == OC_OBSERVE_REGISTER)
1014     {
1015         OIC_LOG(INFO, TAG, "Observation registration requested");
1016
1017         ResourceObserver *obs = GetObserverUsingToken (request->requestToken,
1018                                     request->tokenLength);
1019
1020         if (obs)
1021         {
1022             OIC_LOG (INFO, TAG, "Observer with this token already present");
1023             OIC_LOG (INFO, TAG, "Possibly re-transmitted CON OBS request");
1024             OIC_LOG (INFO, TAG, "Not adding observer. Not responding to client");
1025             OIC_LOG (INFO, TAG, "The first request for this token is already ACKED.");
1026
1027             // server requests are usually free'd when the response is sent out
1028             // for the request in ocserverrequest.c : HandleSingleResponse()
1029             // Since we are making an early return and not responding, the server request
1030             // needs to be deleted.
1031             FindAndDeleteServerRequest (request);
1032             return OC_STACK_OK;
1033         }
1034
1035         result = GenerateObserverId(&ehRequest.obsInfo.obsId);
1036         VERIFY_SUCCESS(result, OC_STACK_OK);
1037
1038         result = AddObserver ((const char*)(request->resourceUrl),
1039                 (const char *)(request->query),
1040                 ehRequest.obsInfo.obsId, request->requestToken, request->tokenLength,
1041                 resource, request->qos, request->acceptFormat,
1042                 &request->devAddr);
1043
1044         if(result == OC_STACK_OK)
1045         {
1046             OIC_LOG(INFO, TAG, "Added observer successfully");
1047             request->observeResult = OC_STACK_OK;
1048             ehFlag = (OCEntityHandlerFlag)(OC_REQUEST_FLAG | OC_OBSERVE_FLAG);
1049         }
1050         else if (result == OC_STACK_RESOURCE_ERROR)
1051         {
1052             OIC_LOG(INFO, TAG, "The Resource is not active, discoverable or observable");
1053             request->observeResult = OC_STACK_ERROR;
1054             ehFlag = OC_REQUEST_FLAG;
1055         }
1056         else
1057         {
1058             // The error in observeResult for the request will be used when responding to this
1059             // request by omitting the observation option/sequence number.
1060             request->observeResult = OC_STACK_ERROR;
1061             OIC_LOG(ERROR, TAG, "Observer Addition failed");
1062             ehFlag = OC_REQUEST_FLAG;
1063             FindAndDeleteServerRequest(request);
1064             goto exit;
1065         }
1066
1067     }
1068     else if(ehRequest.obsInfo.action == OC_OBSERVE_DEREGISTER)
1069     {
1070         OIC_LOG(INFO, TAG, "Deregistering observation requested");
1071
1072         resObs = GetObserverUsingToken (request->requestToken, request->tokenLength);
1073
1074         if (NULL == resObs)
1075         {
1076             // Stack does not contain this observation request
1077             // Either token is incorrect or observation list is corrupted
1078             result = OC_STACK_ERROR;
1079             goto exit;
1080         }
1081         ehRequest.obsInfo.obsId = resObs->observeId;
1082         ehFlag = (OCEntityHandlerFlag)(ehFlag | OC_OBSERVE_FLAG);
1083
1084         result = DeleteObserverUsingToken (request->requestToken, request->tokenLength);
1085
1086         if(result == OC_STACK_OK)
1087         {
1088             OIC_LOG(INFO, TAG, "Removed observer successfully");
1089             request->observeResult = OC_STACK_OK;
1090             // There should be no observe option header for de-registration response.
1091             // Set as an invalid value here so we can detect it later and remove the field in response.
1092             request->observationOption = MAX_SEQUENCE_NUMBER + 1;
1093         }
1094         else
1095         {
1096             request->observeResult = OC_STACK_ERROR;
1097             OIC_LOG(ERROR, TAG, "Observer Removal failed");
1098             FindAndDeleteServerRequest(request);
1099             goto exit;
1100         }
1101     }
1102     else
1103     {
1104         result = OC_STACK_ERROR;
1105         goto exit;
1106     }
1107
1108     ehResult = resource->entityHandler(ehFlag, &ehRequest, resource->entityHandlerCallbackParam);
1109     if(ehResult == OC_EH_SLOW)
1110     {
1111         OIC_LOG(INFO, TAG, "This is a slow resource");
1112         request->slowFlag = 1;
1113     }
1114     else if(ehResult == OC_EH_ERROR)
1115     {
1116         FindAndDeleteServerRequest(request);
1117     }
1118     result = EntityHandlerCodeToOCStackCode(ehResult);
1119 exit:
1120     OCPayloadDestroy(ehRequest.payload);
1121     return result;
1122 }
1123
1124 static OCStackResult
1125 HandleCollectionResourceDefaultEntityHandler (OCServerRequest *request,
1126                                               OCResource *resource)
1127 {
1128     if(!request || !resource)
1129     {
1130         return OC_STACK_INVALID_PARAM;
1131     }
1132
1133     OCStackResult result = OC_STACK_ERROR;
1134     OCEntityHandlerRequest ehRequest = {0};
1135
1136     result = FormOCEntityHandlerRequest(&ehRequest,
1137                                         (OCRequestHandle)request,
1138                                         request->method,
1139                                         &request->devAddr,
1140                                         (OCResourceHandle)resource,
1141                                         request->query,
1142                                         PAYLOAD_TYPE_REPRESENTATION,
1143                                         request->payload,
1144                                         request->payloadSize,
1145                                         request->numRcvdVendorSpecificHeaderOptions,
1146                                         request->rcvdVendorSpecificHeaderOptions,
1147                                         (OCObserveAction)request->observationOption,
1148                                         (OCObservationId)0,
1149                                         request->coapID);
1150     if(result == OC_STACK_OK)
1151     {
1152         result = DefaultCollectionEntityHandler (OC_REQUEST_FLAG, &ehRequest);
1153     }
1154
1155     OCPayloadDestroy(ehRequest.payload);
1156     return result;
1157 }
1158
1159 OCStackResult
1160 ProcessRequest(ResourceHandling resHandling, OCResource *resource, OCServerRequest *request)
1161 {
1162     OCStackResult ret = OC_STACK_OK;
1163
1164     switch (resHandling)
1165     {
1166         case OC_RESOURCE_VIRTUAL:
1167         {
1168             ret = HandleVirtualResource (request, resource);
1169             break;
1170         }
1171         case OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER:
1172         {
1173             ret = HandleDefaultDeviceEntityHandler(request);
1174             break;
1175         }
1176         case OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER:
1177         {
1178             OIC_LOG(INFO, TAG, "OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER");
1179             return OC_STACK_ERROR;
1180         }
1181         case OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER:
1182         {
1183             ret = HandleResourceWithEntityHandler (request, resource, 0);
1184             break;
1185         }
1186         case OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER:
1187         {
1188             ret = HandleResourceWithEntityHandler (request, resource, 1);
1189             break;
1190         }
1191         case OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER:
1192         {
1193             ret = HandleCollectionResourceDefaultEntityHandler (request, resource);
1194             break;
1195         }
1196         case OC_RESOURCE_NOT_SPECIFIED:
1197         {
1198             ret = OC_STACK_NO_RESOURCE;
1199             break;
1200         }
1201         default:
1202         {
1203             OIC_LOG(INFO, TAG, "Invalid Resource Determination");
1204             return OC_STACK_ERROR;
1205         }
1206     }
1207     return ret;
1208 }
1209
1210 void DeletePlatformInfo()
1211 {
1212     OIC_LOG(INFO, TAG, "Deleting platform info.");
1213
1214     OICFree(savedPlatformInfo.platformID);
1215     savedPlatformInfo.platformID = NULL;
1216
1217     OICFree(savedPlatformInfo.manufacturerName);
1218     savedPlatformInfo.manufacturerName = NULL;
1219
1220     OICFree(savedPlatformInfo.manufacturerUrl);
1221     savedPlatformInfo.manufacturerUrl = NULL;
1222
1223     OICFree(savedPlatformInfo.modelNumber);
1224     savedPlatformInfo.modelNumber = NULL;
1225
1226     OICFree(savedPlatformInfo.dateOfManufacture);
1227     savedPlatformInfo.dateOfManufacture = NULL;
1228
1229     OICFree(savedPlatformInfo.platformVersion);
1230     savedPlatformInfo.platformVersion = NULL;
1231
1232     OICFree(savedPlatformInfo.operatingSystemVersion);
1233     savedPlatformInfo.operatingSystemVersion = NULL;
1234
1235     OICFree(savedPlatformInfo.hardwareVersion);
1236     savedPlatformInfo.hardwareVersion = NULL;
1237
1238     OICFree(savedPlatformInfo.firmwareVersion);
1239     savedPlatformInfo.firmwareVersion = NULL;
1240
1241     OICFree(savedPlatformInfo.supportUrl);
1242     savedPlatformInfo.supportUrl = NULL;
1243
1244     OICFree(savedPlatformInfo.systemTime);
1245     savedPlatformInfo.systemTime = NULL;
1246 }
1247
1248 static OCStackResult DeepCopyPlatFormInfo(OCPlatformInfo info)
1249 {
1250     savedPlatformInfo.platformID = OICStrdup(info.platformID);
1251     savedPlatformInfo.manufacturerName = OICStrdup(info.manufacturerName);
1252     savedPlatformInfo.manufacturerUrl = OICStrdup(info.manufacturerUrl);
1253     savedPlatformInfo.modelNumber = OICStrdup(info.modelNumber);
1254     savedPlatformInfo.dateOfManufacture = OICStrdup(info.dateOfManufacture);
1255     savedPlatformInfo.platformVersion = OICStrdup(info.platformVersion);
1256     savedPlatformInfo.operatingSystemVersion = OICStrdup(info.operatingSystemVersion);
1257     savedPlatformInfo.hardwareVersion = OICStrdup(info.hardwareVersion);
1258     savedPlatformInfo.firmwareVersion = OICStrdup(info.firmwareVersion);
1259     savedPlatformInfo.supportUrl = OICStrdup(info.supportUrl);
1260     savedPlatformInfo.systemTime = OICStrdup(info.systemTime);
1261
1262     if ((!savedPlatformInfo.platformID && info.platformID)||
1263         (!savedPlatformInfo.manufacturerName && info.manufacturerName)||
1264         (!savedPlatformInfo.manufacturerUrl && info.manufacturerUrl)||
1265         (!savedPlatformInfo.modelNumber && info.modelNumber)||
1266         (!savedPlatformInfo.dateOfManufacture && info.dateOfManufacture)||
1267         (!savedPlatformInfo.platformVersion && info.platformVersion)||
1268         (!savedPlatformInfo.operatingSystemVersion && info.operatingSystemVersion)||
1269         (!savedPlatformInfo.hardwareVersion && info.hardwareVersion)||
1270         (!savedPlatformInfo.firmwareVersion && info.firmwareVersion)||
1271         (!savedPlatformInfo.supportUrl && info.supportUrl)||
1272         (!savedPlatformInfo.systemTime && info.systemTime))
1273     {
1274         DeletePlatformInfo();
1275         return OC_STACK_INVALID_PARAM;
1276     }
1277
1278     return OC_STACK_OK;
1279
1280 }
1281
1282 OCStackResult SavePlatformInfo(OCPlatformInfo info)
1283 {
1284     DeletePlatformInfo();
1285
1286     OCStackResult res = DeepCopyPlatFormInfo(info);
1287
1288     if (res != OC_STACK_OK)
1289     {
1290         OIC_LOG_V(ERROR, TAG, "Failed to save platform info. errno(%d)", res);
1291     }
1292     else
1293     {
1294         OIC_LOG(INFO, TAG, "Platform info saved.");
1295     }
1296
1297     return res;
1298 }
1299
1300 void DeleteDeviceInfo()
1301 {
1302     OIC_LOG(INFO, TAG, "Deleting device info.");
1303
1304     OICFree(savedDeviceInfo.deviceName);
1305     OCFreeOCStringLL(savedDeviceInfo.types);
1306     OICFree(savedDeviceInfo.specVersion);
1307     OCFreeOCStringLL(savedDeviceInfo.dataModelVersions);
1308     savedDeviceInfo.deviceName = NULL;
1309     savedDeviceInfo.specVersion = NULL;
1310     savedDeviceInfo.dataModelVersions = NULL;
1311 }
1312
1313 static OCStackResult DeepCopyDeviceInfo(OCDeviceInfo info)
1314 {
1315     savedDeviceInfo.deviceName = OICStrdup(info.deviceName);
1316
1317     if(!savedDeviceInfo.deviceName && info.deviceName)
1318     {
1319         DeleteDeviceInfo();
1320         return OC_STACK_NO_MEMORY;
1321     }
1322
1323     if (info.types)
1324     {
1325         savedDeviceInfo.types = CloneOCStringLL(info.types);
1326         OCStringLL *type = info.types;
1327         bool found = false;
1328         while (type)
1329         {
1330             if (type && type->value && 0 == strcmp(type->value, OC_RSRVD_RESOURCE_TYPE_DEVICE))
1331             {
1332                 found = true;
1333             }
1334             type = type->next;
1335         }
1336         if (!found)
1337         {
1338             // Append the oic.wk.d at the start of rt link parameter value.
1339             OCStringLL *dest = (OCStringLL*)OICCalloc (1, sizeof (OCStringLL));
1340             if (!dest)
1341             {
1342                 DeleteDeviceInfo();
1343                 return OC_STACK_NO_MEMORY;
1344             }
1345             dest->value = OICStrdup (OC_RSRVD_RESOURCE_TYPE_DEVICE);
1346             if (!dest->value)
1347             {
1348                 DeleteDeviceInfo();
1349                 return OC_STACK_NO_MEMORY;
1350             }
1351             dest->next = savedDeviceInfo.types;
1352             savedDeviceInfo.types = dest;
1353         }
1354         if(!savedDeviceInfo.types && info.types)
1355         {
1356             DeleteDeviceInfo();
1357             return OC_STACK_NO_MEMORY;
1358         }
1359     }
1360
1361     if (info.specVersion)
1362     {
1363         savedDeviceInfo.specVersion = OICStrdup(info.specVersion);
1364         if(!savedDeviceInfo.specVersion && info.specVersion)
1365         {
1366             DeleteDeviceInfo();
1367             return OC_STACK_NO_MEMORY;
1368         }
1369     }
1370     else
1371     {
1372         savedDeviceInfo.specVersion = OICStrdup(OC_SPEC_VERSION);
1373         if(!savedDeviceInfo.specVersion && OC_SPEC_VERSION)
1374         {
1375             DeleteDeviceInfo();
1376             return OC_STACK_NO_MEMORY;
1377         }
1378     }
1379
1380     if (info.dataModelVersions)
1381     {
1382         savedDeviceInfo.dataModelVersions = CloneOCStringLL(info.dataModelVersions);
1383         if(!savedDeviceInfo.dataModelVersions && info.dataModelVersions)
1384         {
1385             DeleteDeviceInfo();
1386             return OC_STACK_NO_MEMORY;
1387         }
1388     }
1389     else
1390     {
1391         savedDeviceInfo.dataModelVersions = (OCStringLL *)OICCalloc(1,sizeof(OCStringLL));
1392         if (!savedDeviceInfo.dataModelVersions)
1393         {
1394             return OC_STACK_NO_MEMORY;
1395         }
1396         savedDeviceInfo.dataModelVersions->value = OICStrdup(OC_DATA_MODEL_VERSION);
1397         if(!savedDeviceInfo.dataModelVersions->value && OC_DATA_MODEL_VERSION)
1398         {
1399             DeleteDeviceInfo();
1400             return OC_STACK_NO_MEMORY;
1401         }
1402     }
1403
1404     return OC_STACK_OK;
1405 }
1406
1407 OCStackResult SaveDeviceInfo(OCDeviceInfo info)
1408 {
1409     OCStackResult res = OC_STACK_OK;
1410
1411     DeleteDeviceInfo();
1412
1413     res = DeepCopyDeviceInfo(info);
1414
1415     VERIFY_SUCCESS(res, OC_STACK_OK);
1416
1417     if (OCGetServerInstanceIDString() == NULL)
1418     {
1419         OIC_LOG(INFO, TAG, "Device ID generation failed");
1420         res =  OC_STACK_ERROR;
1421         goto exit;
1422     }
1423
1424     OIC_LOG(INFO, TAG, "Device initialized successfully.");
1425     return OC_STACK_OK;
1426
1427 exit:
1428     DeleteDeviceInfo();
1429     return res;
1430 }