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
  29 #ifdef WITH_ARDUINO
  30 #include <string.h>
  31 #else
  32 #include <strings.h>
  33 #endif
  34
  35 #include "ocresource.h"
  36 #include "ocresourcehandler.h"
  37 #include "ocobserve.h"
  38 #include "occollection.h"
  39 #include "oic_malloc.h"
  40 #include "oic_string.h"
  41 #include "logger.h"
  42 #include "cJSON.h"
  43 #include "ocpayload.h"
  44 #include "secureresourcemanager.h"
  45 #include "cacommon.h"
  46 #include "cainterface.h"
  47 #include "rdpayload.h"
  48 #include "ocpayload.h"
  49
  50 #ifdef WITH_RD
  51 #include "rd_server.h"
  52 #endif
  53
  54 #ifdef ROUTING_GATEWAY
  55 #include "routingmanager.h"
  56 #endif
  57
  58 /// Module Name
  59 #define TAG "OIC_RI_RESOURCE"
  60
  61 #define VERIFY_SUCCESS(op, successCode) { if (op != successCode) \
  62             {OIC_LOG_V(FATAL, TAG, "%s failed!!", #op); goto exit;} }
  63
  64 #define VERIFY_NON_NULL(arg, logLevel, retVal) { if (!(arg)) { OIC_LOG((logLevel), \
  65              TAG, #arg " is NULL"); return (retVal); } }
  66
  67 extern OCResource *headResource;
  68 static OCPlatformInfo savedPlatformInfo = {0};
  69 static OCDeviceInfo savedDeviceInfo = {0};
  70
  71 /**
  72  * Prepares a Payload for response.
  73  */
  74 static OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
  75                                                   OCDiscoveryPayload* payload,
  76                                                   OCDevAddr *endpoint,
  77                                                   bool rdResponse);
  78
  79 //-----------------------------------------------------------------------------
  80 // Default resource entity handler function
  81 //-----------------------------------------------------------------------------
  82 OCEntityHandlerResult defaultResourceEHandler(OCEntityHandlerFlag flag,
  83         OCEntityHandlerRequest * request, void* callbackParam)
  84 {
  85     //TODO ("Implement me!!!!");
  86     // TODO:  remove silence unused param warnings
  87     (void) flag;
  88     (void) request;
  89     (void) callbackParam;
  90     return  OC_EH_OK; // Making sure that the Default EH and the Vendor EH have matching signatures
  91 }
  92
  93 /* This method will retrieve the port at which the secure resource is hosted */
  94 static OCStackResult GetSecurePortInfo(OCDevAddr *endpoint, uint16_t *port)
  95 {
  96     uint16_t p = 0;
  97
  98     if (endpoint->adapter == OC_ADAPTER_IP)
  99     {
 100         if (endpoint->flags & OC_IP_USE_V6)
 101         {
 102             p = caglobals.ip.u6s.port;
 103         }
 104         else if (endpoint->flags & OC_IP_USE_V4)
 105         {
 106             p = caglobals.ip.u4s.port;
 107         }
 108     }
 109
 110     *port = p;
 111     return OC_STACK_OK;
 112 }
 113
 114 #ifdef TCP_ADAPTER
 115 /* This method will retrieve the tcp port */
 116 static OCStackResult GetTCPPortInfo(OCDevAddr *endpoint, uint16_t *port)
 117 {
 118     uint16_t p = 0;
 119
 120     if (endpoint->adapter == OC_ADAPTER_IP)
 121     {
 122         if (endpoint->flags & OC_IP_USE_V4)
 123         {
 124             p = caglobals.tcp.ipv4.port;
 125         }
 126         else if (endpoint->flags & OC_IP_USE_V6)
 127         {
 128             p = caglobals.tcp.ipv6.port;
 129         }
 130     }
 131
 132     *port = p;
 133     return OC_STACK_OK;
 134 }
 135 #endif
 136
 137 /*
 138  * Function will extract 0, 1 or 2 filters from query.
 139  * More than 2 filters or unsupported filters will result in error.
 140  * If both filters are of the same supported type, the 2nd one will be picked.
 141  * Resource and device filters in the SAME query are NOT validated
 142  * and resources will likely not clear filters.
 143  */
 144 static OCStackResult ExtractFiltersFromQuery(char *query, char **filterOne, char **filterTwo)
 145 {
 146
 147     char *key = NULL;
 148     char *value = NULL;
 149     char *restOfQuery = NULL;
 150     int numKeyValuePairsParsed = 0;
 151
 152     *filterOne = NULL;
 153     *filterTwo = NULL;
 154
 155     OIC_LOG_V(INFO, TAG, "Extracting params from %s", query);
 156
 157     char *keyValuePair = strtok_r (query, OC_QUERY_SEPARATOR, &restOfQuery);
 158
 159     while(keyValuePair)
 160     {
 161         if (numKeyValuePairsParsed >= 2)
 162         {
 163             OIC_LOG(ERROR, TAG, "More than 2 queries params in URI.");
 164             return OC_STACK_INVALID_QUERY;
 165         }
 166
 167         key = strtok_r(keyValuePair, OC_KEY_VALUE_DELIMITER, &value);
 168
 169         if (!key || !value)
 170         {
 171             return OC_STACK_INVALID_QUERY;
 172         }
 173         else if (strncasecmp(key, OC_RSRVD_INTERFACE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 174         {
 175             *filterOne = value;     // if
 176         }
 177         else if (strncasecmp(key, OC_RSRVD_RESOURCE_TYPE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 178         {
 179             *filterTwo = value;     // rt
 180         }
 181         else
 182         {
 183             OIC_LOG_V(ERROR, TAG, "Unsupported query key: %s", key);
 184             return OC_STACK_INVALID_QUERY;
 185         }
 186         ++numKeyValuePairsParsed;
 187
 188         keyValuePair = strtok_r(NULL, OC_QUERY_SEPARATOR, &restOfQuery);
 189     }
 190
 191     OIC_LOG_V(INFO, TAG, "Extracted params if: %s and rt: %s.", *filterOne, *filterTwo);
 192     return OC_STACK_OK;
 193 }
 194
 195 static OCVirtualResources GetTypeOfVirtualURI(const char *uriInRequest)
 196 {
 197     if (strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_URI) == 0)
 198     {
 199         return OC_WELL_KNOWN_URI;
 200     }
 201     else if (strcmp(uriInRequest, OC_RSRVD_DEVICE_URI) == 0)
 202     {
 203         return OC_DEVICE_URI;
 204     }
 205     else if (strcmp(uriInRequest, OC_RSRVD_PLATFORM_URI) == 0)
 206     {
 207         return OC_PLATFORM_URI;
 208     }
 209     else if (strcmp(uriInRequest, OC_RSRVD_RESOURCE_TYPES_URI) == 0)
 210     {
 211         return OC_RESOURCE_TYPES_URI;
 212     }
 213 #ifdef ROUTING_GATEWAY
 214     else if (0 == strcmp(uriInRequest, OC_RSRVD_GATEWAY_URI))
 215     {
 216         return OC_GATEWAY_URI;
 217     }
 218 #endif
 219 #ifdef WITH_PRESENCE
 220     else if (strcmp(uriInRequest, OC_RSRVD_PRESENCE_URI) == 0)
 221     {
 222         return OC_PRESENCE;
 223     }
 224 #endif //WITH_PRESENCE
 225     return OC_UNKNOWN_URI;
 226 }
 227
 228 static OCStackResult getQueryParamsForFiltering (OCVirtualResources uri, char *query,
 229                                             char **filterOne, char **filterTwo)
 230 {
 231     if(!filterOne || !filterTwo)
 232     {
 233         return OC_STACK_INVALID_PARAM;
 234     }
 235
 236     *filterOne = NULL;
 237     *filterTwo = NULL;
 238
 239     #ifdef WITH_PRESENCE
 240     if (uri == OC_PRESENCE)
 241     {
 242         //Nothing needs to be done, except for pass a OC_PRESENCE query through as OC_STACK_OK.
 243         OIC_LOG(INFO, TAG, "OC_PRESENCE Request for virtual resource.");
 244         return OC_STACK_OK;
 245     }
 246     #endif
 247
 248     OCStackResult result = OC_STACK_OK;
 249
 250     if (query && *query)
 251     {
 252         result = ExtractFiltersFromQuery(query, filterOne, filterTwo);
 253     }
 254
 255     return result;
 256 }
 257
 258 OCStackResult BuildResponseRepresentation(const OCResource *resourcePtr,
 259                     OCRepPayload** payload)
 260 {
 261     OCRepPayload *tempPayload = OCRepPayloadCreate();
 262
 263     if (!resourcePtr)
 264     {
 265         OCRepPayloadDestroy(tempPayload);
 266         return OC_STACK_INVALID_PARAM;
 267     }
 268
 269     if(!tempPayload)
 270     {
 271         return OC_STACK_NO_MEMORY;
 272     }
 273
 274     OCRepPayloadSetUri(tempPayload, resourcePtr->uri);
 275
 276     OCResourceType *resType = resourcePtr->rsrcType;
 277     while(resType)
 278     {
 279         OCRepPayloadAddResourceType(tempPayload, resType->resourcetypename);
 280         resType = resType->next;
 281     }
 282
 283     OCResourceInterface *resInterface = resourcePtr->rsrcInterface;
 284     while(resInterface)
 285     {
 286         OCRepPayloadAddInterface(tempPayload, resInterface->name);
 287         resInterface = resInterface->next;
 288     }
 289
 290     OCAttribute *resAttrib = resourcePtr->rsrcAttributes;
 291     while(resAttrib)
 292     {
 293         OCRepPayloadSetPropString(tempPayload, resAttrib->attrName,
 294                                 resAttrib->attrValue);
 295         resAttrib = resAttrib->next;
 296     }
 297
 298     if(!*payload)
 299     {
 300         *payload = tempPayload;
 301     }
 302     else
 303     {
 304         OCRepPayloadAppend(*payload, tempPayload);
 305     }
 306
 307     return OC_STACK_OK;
 308 }
 309
 310 OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
 311                         OCDiscoveryPayload *payload, OCDevAddr *devAddr, bool rdResponse)
 312 {
 313     if (!resourcePtr || !payload)
 314     {
 315         return OC_STACK_INVALID_PARAM;
 316     }
 317     uint16_t securePort = 0;
 318     if (resourcePtr->resourceProperties & OC_SECURE)
 319     {
 320        if (GetSecurePortInfo(devAddr, &securePort) != OC_STACK_OK)
 321        {
 322            securePort = 0;
 323        }
 324     }
 325
 326     if (rdResponse)
 327     {
 328         securePort = devAddr->port;
 329     }
 330
 331     uint16_t tcpPort = 0;
 332 #ifdef TCP_ADAPTER
 333     if (GetTCPPortInfo(devAddr, &tcpPort) != OC_STACK_OK)
 334     {
 335         tcpPort = 0;
 336     }
 337     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort, tcpPort);
 338 #else
 339     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort);
 340 #endif
 341
 342     return OC_STACK_OK;
 343 }
 344
 345 uint8_t IsCollectionResource (OCResource *resource)
 346 {
 347     if(!resource)
 348     {
 349         return 0;
 350     }
 351
 352     if(resource->rsrcChildResourcesHead != NULL)
 353     {
 354         return 1;
 355     }
 356
 357     return 0;
 358 }
 359
 360 OCResource *FindResourceByUri(const char* resourceUri)
 361 {
 362     if(!resourceUri)
 363     {
 364         return NULL;
 365     }
 366
 367     OCResource * pointer = headResource;
 368     while (pointer)
 369     {
 370         if (strcmp(resourceUri, pointer->uri) == 0)
 371         {
 372             return pointer;
 373         }
 374         pointer = pointer->next;
 375     }
 376     OIC_LOG_V(INFO, TAG, "Resource %s not found", resourceUri);
 377     return NULL;
 378 }
 379
 380
 381 OCStackResult DetermineResourceHandling (const OCServerRequest *request,
 382                                          ResourceHandling *handling,
 383                                          OCResource **resource)
 384 {
 385     if(!request || !handling || !resource)
 386     {
 387         return OC_STACK_INVALID_PARAM;
 388     }
 389
 390     OIC_LOG_V(INFO, TAG, "DetermineResourceHandling for %s", request->resourceUrl);
 391
 392     // Check if virtual resource
 393     if (GetTypeOfVirtualURI(request->resourceUrl) != OC_UNKNOWN_URI)
 394     {
 395         OIC_LOG_V (INFO, TAG, "%s is virtual", request->resourceUrl);
 396         *handling = OC_RESOURCE_VIRTUAL;
 397         *resource = headResource;
 398         return OC_STACK_OK;
 399     }
 400     if (strlen((const char*)(request->resourceUrl)) == 0)
 401     {
 402         // Resource URL not specified
 403         *handling = OC_RESOURCE_NOT_SPECIFIED;
 404         return OC_STACK_NO_RESOURCE;
 405     }
 406     else
 407     {
 408         OCResource *resourcePtr = FindResourceByUri((const char*)request->resourceUrl);
 409         *resource = resourcePtr;
 410         if (!resourcePtr)
 411         {
 412             if(defaultDeviceHandler)
 413             {
 414                 *handling = OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER;
 415                 return OC_STACK_OK;
 416             }
 417
 418             // Resource does not exist
 419             // and default device handler does not exist
 420             *handling = OC_RESOURCE_NOT_SPECIFIED;
 421             return OC_STACK_NO_RESOURCE;
 422         }
 423
 424         if (IsCollectionResource (resourcePtr))
 425         {
 426             // Collection resource
 427             if (resourcePtr->entityHandler != defaultResourceEHandler)
 428             {
 429                 *handling = OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER;
 430                 return OC_STACK_OK;
 431             }
 432             else
 433             {
 434                 *handling = OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER;
 435                 return OC_STACK_OK;
 436             }
 437         }
 438         else
 439         {
 440             // Resource not a collection
 441             if (resourcePtr->entityHandler != defaultResourceEHandler)
 442             {
 443                 *handling = OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER;
 444                 return OC_STACK_OK;
 445             }
 446             else
 447             {
 448                 *handling = OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER;
 449                 return OC_STACK_OK;
 450             }
 451         }
 452     }
 453 }
 454
 455 OCStackResult EntityHandlerCodeToOCStackCode(OCEntityHandlerResult ehResult)
 456 {
 457     OCStackResult result;
 458
 459     switch (ehResult)
 460     {
 461         case OC_EH_OK:
 462             result = OC_STACK_OK;
 463             break;
 464         case OC_EH_SLOW:
 465             result = OC_STACK_SLOW_RESOURCE;
 466             break;
 467         case OC_EH_ERROR:
 468             result = OC_STACK_ERROR;
 469             break;
 470         case OC_EH_FORBIDDEN:
 471             result = OC_STACK_RESOURCE_ERROR;
 472             break;
 473         case OC_EH_RESOURCE_CREATED:
 474             result = OC_STACK_RESOURCE_CREATED;
 475             break;
 476         case OC_EH_RESOURCE_DELETED:
 477             result = OC_STACK_RESOURCE_DELETED;
 478             break;
 479         case OC_EH_RESOURCE_NOT_FOUND:
 480             result = OC_STACK_NO_RESOURCE;
 481             break;
 482         default:
 483             result = OC_STACK_ERROR;
 484     }
 485
 486     return result;
 487 }
 488
 489 static bool resourceMatchesRTFilter(OCResource *resource, char *resourceTypeFilter)
 490 {
 491     if (!resource)
 492     {
 493         return false;
 494     }
 495
 496     // Null or empty is analogous to no filter.
 497     if (resourceTypeFilter == NULL || *resourceTypeFilter == 0)
 498     {
 499         return true;
 500     }
 501
 502     OCResourceType *resourceTypePtr = resource->rsrcType;
 503
 504     while (resourceTypePtr)
 505     {
 506         if (strcmp (resourceTypePtr->resourcetypename, resourceTypeFilter) == 0)
 507         {
 508             return true;
 509         }
 510         resourceTypePtr = resourceTypePtr->next;
 511     }
 512
 513     OIC_LOG_V(INFO, TAG, "%s does not contain rt=%s.", resource->uri, resourceTypeFilter);
 514     return false;
 515 }
 516
 517 static bool resourceMatchesIFFilter(OCResource *resource, char *interfaceFilter)
 518 {
 519     if (!resource)
 520     {
 521         return false;
 522     }
 523
 524     // Null or empty is analogous to no filter.
 525     if (interfaceFilter == NULL || *interfaceFilter == 0)
 526     {
 527         return true;
 528     }
 529
 530     OCResourceInterface *interfacePtr = resource->rsrcInterface;
 531
 532     while (interfacePtr)
 533     {
 534         if ((strcmp (interfacePtr->name, interfaceFilter) == 0) &&
 535             (strcmp (OC_RSRVD_INTERFACE_LL, interfaceFilter) == 0 ||
 536              strcmp (OC_RSRVD_INTERFACE_DEFAULT, interfaceFilter) == 0))
 537         {
 538             return true;
 539         }
 540         interfacePtr = interfacePtr->next;
 541     }
 542
 543     OIC_LOG_V(INFO, TAG, "%s does not contain if=%s.", resource->uri, interfaceFilter);
 544     return false;
 545 }
 546
 547 /*
 548  * If the filters are null, they will be assumed to NOT be present
 549  * and the resource will not be matched against them.
 550  * Function will return true if all non null AND non empty filters passed in find a match.
 551  */
 552 static bool includeThisResourceInResponse(OCResource *resource,
 553                                           char *interfaceFilter,
 554                                           char *resourceTypeFilter)
 555 {
 556     if (!resource)
 557     {
 558         OIC_LOG(ERROR, TAG, "Invalid resource");
 559         return false;
 560     }
 561
 562     if (resource->resourceProperties & OC_EXPLICIT_DISCOVERABLE)
 563     {
 564         /*
 565          * At least one valid filter should be available to
 566          * include the resource in discovery response
 567          */
 568         if (!(resourceTypeFilter && *resourceTypeFilter))
 569         {
 570             OIC_LOG_V(INFO, TAG, "%s no query string for EXPLICIT_DISCOVERABLE \
 571                 resource", resource->uri);
 572             return false;
 573         }
 574     }
 575     else if ( !(resource->resourceProperties & OC_ACTIVE) ||
 576          !(resource->resourceProperties & OC_DISCOVERABLE))
 577     {
 578         OIC_LOG_V(INFO, TAG, "%s not ACTIVE or DISCOVERABLE", resource->uri);
 579         return false;
 580     }
 581
 582     return resourceMatchesIFFilter(resource, interfaceFilter) &&
 583            resourceMatchesRTFilter(resource, resourceTypeFilter);
 584
 585 }
 586
 587 OCStackResult SendNonPersistantDiscoveryResponse(OCServerRequest *request, OCResource *resource,
 588                                 OCPayload *discoveryPayload, OCEntityHandlerResult ehResult)
 589 {
 590     OCEntityHandlerResponse response = {0};
 591
 592     response.ehResult = ehResult;
 593     response.payload = discoveryPayload;
 594     response.persistentBufferFlag = 0;
 595     response.requestHandle = (OCRequestHandle) request;
 596     response.resourceHandle = (OCResourceHandle) resource;
 597
 598     return OCDoResponse(&response);
 599 }
 600
 601 #ifdef WITH_RD
 602 static OCStackResult checkResourceExistsAtRD(const char *interfaceType, const char *resourceType,
 603      OCResource **payload, OCDevAddr *devAddr)
 604 {
 605     OCResourceCollectionPayload *repPayload;
 606     if (!payload)
 607     {
 608         return OC_STACK_ERROR;
 609     }
 610     if (OCRDCheckPublishedResource(interfaceType, resourceType, &repPayload, devAddr) == OC_STACK_OK)
 611     {
 612         if (!repPayload)
 613         {
 614             return OC_STACK_ERROR;
 615         }
 616         OCResource *ptr = ((OCResource *) OICCalloc(1, sizeof(OCResource)));
 617         if (!ptr)
 618         {
 619            return OC_STACK_NO_MEMORY;
 620         }
 621
 622         ptr->uri = OICStrdup(repPayload->setLinks->href);
 623         if (!ptr->uri)
 624         {
 625            return OC_STACK_NO_MEMORY;
 626         }
 627         OCStringLL *rt = repPayload->setLinks->rt;
 628         while (rt)
 629         {
 630             OCResourceType *temp = (OCResourceType *) OICCalloc(1, sizeof(OCResourceType));
 631             if(!temp)
 632             {
 633                 OICFree(ptr->uri);
 634                 return OC_STACK_NO_MEMORY;
 635             }
 636             temp->next = NULL;
 637             temp->resourcetypename = OICStrdup(rt->value);
 638             if (!ptr->rsrcType)
 639             {
 640                 ptr->rsrcType = temp;
 641             }
 642             else
 643             {
 644                 OCResourceType *type = ptr->rsrcType;
 645                 while (type->next)
 646                 {
 647                     type = type->next;
 648                 }
 649                 type->next = temp;
 650             }
 651             rt = rt->next;
 652         }
 653
 654         OCStringLL *itf = repPayload->setLinks->itf;
 655         while (itf)
 656         {
 657             OCResourceInterface *temp = (OCResourceInterface *) OICCalloc(1, sizeof(OCResourceInterface));
 658             if (!temp)
 659             {
 660                 OICFree(ptr->uri);
 661
 662                 return OC_STACK_NO_MEMORY;
 663             }
 664             temp->next = NULL;
 665             temp->name = OICStrdup(itf->value);
 666             if (!ptr->rsrcInterface)
 667             {
 668                 ptr->rsrcInterface = temp;
 669             }
 670             else
 671             {
 672                 OCResourceInterface *type = ptr->rsrcInterface;
 673                 while (type->next)
 674                 {
 675                     type = type->next;
 676                 }
 677                 type->next = temp;
 678             }
 679             itf = itf->next;
 680         }
 681
 682         ptr->resourceProperties = (OCResourceProperty) repPayload->tags->bitmap;
 683
 684         OCFreeCollectionResource(repPayload);
 685         *payload = ptr;
 686         return OC_STACK_OK;
 687     }
 688     else
 689     {
 690         OIC_LOG_V(ERROR, TAG, "The resource type or interface type doe not exist \
 691                              on the resource directory");
 692     }
 693     return OC_STACK_ERROR;
 694 }
 695 #endif
 696
 697 static OCStackResult HandleVirtualResource (OCServerRequest *request, OCResource* resource)
 698 {
 699     if (!request || !resource)
 700     {
 701         return OC_STACK_INVALID_PARAM;
 702     }
 703
 704     OCStackResult discoveryResult = OC_STACK_ERROR;
 705
 706     bool bMulticast    = false;     // Was the discovery request a multicast request?
 707     OCPayload* payload = NULL;
 708
 709     OIC_LOG(INFO, TAG, "Entering HandleVirtualResource");
 710
 711     OCVirtualResources virtualUriInRequest = GetTypeOfVirtualURI (request->resourceUrl);
 712
 713     // Step 1: Generate the response to discovery request
 714     if (virtualUriInRequest == OC_WELL_KNOWN_URI)
 715     {
 716         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 717         {
 718             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 719             return OC_STACK_UNAUTHORIZED_REQ;
 720         }
 721
 722         char *interfaceQuery = NULL;
 723         char *resourceTypeQuery = NULL;
 724
 725         discoveryResult = getQueryParamsForFiltering (virtualUriInRequest, request->query,
 726                 &interfaceQuery, &resourceTypeQuery);
 727         bool interfaceQueryAllocated = false;
 728         if (!interfaceQuery && !resourceTypeQuery)
 729         {
 730             interfaceQueryAllocated = true;
 731             interfaceQuery = OICStrdup(OC_RSRVD_INTERFACE_LL);
 732         }
 733
 734         if (discoveryResult == OC_STACK_OK)
 735         {
 736             payload = (OCPayload *)OCDiscoveryPayloadCreate();
 737
 738             if (payload)
 739             {
 740                 OCDiscoveryPayload *discPayload = (OCDiscoveryPayload *)payload;
 741                 discPayload->sid = (char *)OICCalloc(1, UUID_STRING_SIZE);
 742                 VERIFY_NON_NULL(discPayload->sid, ERROR, OC_STACK_NO_MEMORY);
 743
 744                 const char* uid = OCGetServerInstanceIDString();
 745                 if (uid)
 746                 {
 747                     memcpy(discPayload->sid, uid, UUID_STRING_SIZE);
 748                 }
 749
 750                 if (!resourceTypeQuery && interfaceQuery && (0 == strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 751                 {
 752                     for (; resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 753                     {
 754                         bool result = false;
 755                         if (resource->resourceProperties & OC_EXPLICIT_DISCOVERABLE)
 756                         {
 757                             if (resourceTypeQuery && resourceMatchesRTFilter(resource, resourceTypeQuery))
 758                             {
 759                                 result = true;
 760                             }
 761                         }
 762                         if (resource->resourceProperties & OC_DISCOVERABLE)
 763                         {
 764                             result = true;
 765                         }
 766
 767                         if (result)
 768                         {
 769                             discoveryResult = BuildVirtualResourceResponse(resource,
 770                             discPayload, &request->devAddr, false);
 771                         }
 772                     }
 773                 }
 774                 else
 775                 {
 776                     if ((interfaceQuery && (0 != strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL))) ||
 777                         !interfaceQuery)
 778                     {
 779                         discPayload->uri = OICStrdup(OC_RSRVD_WELL_KNOWN_URI);
 780                         VERIFY_NON_NULL(discPayload->uri, ERROR, OC_STACK_NO_MEMORY);
 781                         if (savedDeviceInfo.deviceName)
 782                         {
 783                             discPayload->name = OICStrdup(savedDeviceInfo.deviceName);
 784                             VERIFY_NON_NULL(discPayload->name, ERROR, OC_STACK_NO_MEMORY);
 785                         }
 786                         discPayload->type = OICStrdup(OC_RSRVD_RESOURCE_TYPE_RES);
 787                         VERIFY_NON_NULL(discPayload->type, ERROR, OC_STACK_NO_MEMORY);
 788                         OCResourcePayloadAddStringLL(&discPayload->interface, OC_RSRVD_INTERFACE_LL);
 789                         OCResourcePayloadAddStringLL(&discPayload->interface, OC_RSRVD_INTERFACE_DEFAULT);
 790                         VERIFY_NON_NULL(discPayload->interface, ERROR, OC_STACK_NO_MEMORY);
 791                     }
 792                     bool foundResourceAtRD = false;
 793                     for (;resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 794                     {
 795 #ifdef WITH_RD
 796                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 797                         {
 798                             OCResource *resource1 = NULL;
 799                             OCDevAddr devAddr;
 800                             discoveryResult = checkResourceExistsAtRD(interfaceQuery,
 801                                 resourceTypeQuery, &resource1, &devAddr);
 802                             if (discoveryResult != OC_STACK_OK)
 803                             {
 804                                  break;
 805                             }
 806                             discoveryResult = BuildVirtualResourceResponse(resource1,
 807                                 discPayload, &devAddr, true);
 808                             if (payload)
 809                             {
 810                                 discPayload->baseURI = OICStrdup(devAddr.addr);
 811                             }
 812                             OICFree(resource1->uri);
 813                             for (OCResourceType *rsrcRt = resource1->rsrcType, *rsrcRtNext = NULL; rsrcRt; )
 814                             {
 815                                 rsrcRtNext = rsrcRt->next;
 816                                 OICFree(rsrcRt->resourcetypename);
 817                                 OICFree(rsrcRt);
 818                                 rsrcRt = rsrcRtNext;
 819                             }
 820
 821                             for (OCResourceInterface *rsrcPtr = resource1->rsrcInterface, *rsrcNext = NULL; rsrcPtr; )
 822                             {
 823                                 rsrcNext = rsrcPtr->next;
 824                                 OICFree(rsrcPtr->name);
 825                                 OICFree(rsrcPtr);
 826                                 rsrcPtr = rsrcNext;
 827                             }
 828                             foundResourceAtRD = true;
 829                         }
 830 #endif
 831                         if (!foundResourceAtRD && includeThisResourceInResponse(resource, interfaceQuery, resourceTypeQuery))
 832                         {
 833                             discoveryResult = BuildVirtualResourceResponse(resource,
 834                                 discPayload, &request->devAddr, false);
 835                         }
 836                     }
 837                     // Set discoveryResult appropriately if no 'valid' resources are available
 838                     if (discPayload->resources == NULL && !foundResourceAtRD)
 839                     {
 840                         discoveryResult = OC_STACK_NO_RESOURCE;
 841                     }
 842                 }
 843             }
 844             else
 845             {
 846                 discoveryResult = OC_STACK_NO_MEMORY;
 847             }
 848         }
 849         else
 850         {
 851             OIC_LOG_V(ERROR, TAG, "Error (%d) parsing query.", discoveryResult);
 852         }
 853         if (interfaceQueryAllocated)
 854         {
 855             OICFree(interfaceQuery);
 856         }
 857     }
 858     else if (virtualUriInRequest == OC_DEVICE_URI)
 859     {
 860         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 861         {
 862             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 863             return OC_STACK_UNAUTHORIZED_REQ;
 864         }
 865
 866         const char* deviceId = OCGetServerInstanceIDString();
 867         if (!deviceId)
 868         {
 869             discoveryResult = OC_STACK_ERROR;
 870         }
 871         else
 872         {
 873             payload = (OCPayload*) OCDevicePayloadCreate(deviceId, savedDeviceInfo.deviceName,
 874                 savedDeviceInfo.types, savedDeviceInfo.specVersion, savedDeviceInfo.dataModleVersion);
 875             if (!payload)
 876             {
 877                 discoveryResult = OC_STACK_NO_MEMORY;
 878             }
 879             else
 880             {
 881                 discoveryResult = OC_STACK_OK;
 882             }
 883         }
 884     }
 885     else if (virtualUriInRequest == OC_PLATFORM_URI)
 886     {
 887         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 888         {
 889             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 890             return OC_STACK_UNAUTHORIZED_REQ;
 891         }
 892
 893         payload = (OCPayload*)OCPlatformPayloadCreate(&savedPlatformInfo);
 894         if (!payload)
 895         {
 896             discoveryResult = OC_STACK_NO_MEMORY;
 897         }
 898         else
 899         {
 900             discoveryResult = OC_STACK_OK;
 901         }
 902     }
 903 #ifdef ROUTING_GATEWAY
 904     else if (OC_GATEWAY_URI == virtualUriInRequest)
 905     {
 906         // Received request for a gateway
 907         OIC_LOG(INFO, TAG, "Request is for Gateway Virtual Request");
 908         discoveryResult = RMHandleGatewayRequest(request, resource);
 909
 910     }
 911 #endif
 912
 913     /**
 914      * Step 2: Send the discovery response
 915      *
 916      * Iotivity should respond to discovery requests in below manner:
 917      * 1)If query filter matching fails and discovery request is multicast,
 918      *   it should NOT send any response.
 919      * 2)If query filter matching fails and discovery request is unicast,
 920      *   it should send an error(RESOURCE_NOT_FOUND - 404) response.
 921      * 3)If Server does not have any 'DISCOVERABLE' resources and discovery
 922      *   request is multicast, it should NOT send any response.
 923      * 4)If Server does not have any 'DISCOVERABLE' resources and discovery
 924      *   request is unicast, it should send an error(RESOURCE_NOT_FOUND - 404) response.
 925      */
 926
 927 #ifdef WITH_PRESENCE
 928     if ((virtualUriInRequest == OC_PRESENCE) &&
 929         (resource->resourceProperties & OC_ACTIVE))
 930     {
 931         // Presence uses observer notification api to respond via SendPresenceNotification.
 932         SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
 933     }
 934     else
 935     #endif
 936 #ifdef ROUTING_GATEWAY
 937     // Gateway uses the RMHandleGatewayRequest to respond to the request.
 938     if (OC_GATEWAY_URI != virtualUriInRequest)
 939 #endif
 940     {
 941         if(discoveryResult == OC_STACK_OK)
 942         {
 943             SendNonPersistantDiscoveryResponse(request, resource, payload, OC_EH_OK);
 944         }
 945         else if(bMulticast == false && (request->devAddr.adapter != OC_ADAPTER_RFCOMM_BTEDR) &&
 946                (request->devAddr.adapter != OC_ADAPTER_GATT_BTLE))
 947         {
 948             OIC_LOG_V(ERROR, TAG, "Sending a (%d) error to (%d)  \
 949                 discovery request", discoveryResult, virtualUriInRequest);
 950             SendNonPersistantDiscoveryResponse(request, resource, NULL,
 951                 (discoveryResult == OC_STACK_NO_RESOURCE) ? OC_EH_RESOURCE_NOT_FOUND : OC_EH_ERROR);
 952         }
 953         else
 954         {
 955             // Ignoring the discovery request as per RFC 7252, Section #8.2
 956             OIC_LOG(INFO, TAG, "Silently ignoring the request since device does not have \
 957                 any useful data to send");
 958         }
 959     }
 960
 961     OCPayloadDestroy(payload);
 962
 963     return OC_STACK_OK;
 964 }
 965
 966 static OCStackResult
 967 HandleDefaultDeviceEntityHandler (OCServerRequest *request)
 968 {
 969     if(!request)
 970     {
 971         return OC_STACK_INVALID_PARAM;
 972     }
 973
 974     OCStackResult result = OC_STACK_OK;
 975     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 976     OCEntityHandlerRequest ehRequest = {0};
 977
 978     OIC_LOG(INFO, TAG, "Entering HandleResourceWithDefaultDeviceEntityHandler");
 979     result = FormOCEntityHandlerRequest(&ehRequest,
 980                                         (OCRequestHandle) request,
 981                                         request->method,
 982                                         &request->devAddr,
 983                                         (OCResourceHandle) NULL, request->query,
 984                                         PAYLOAD_TYPE_REPRESENTATION,
 985                                         request->payload,
 986                                         request->payloadSize,
 987                                         request->numRcvdVendorSpecificHeaderOptions,
 988                                         request->rcvdVendorSpecificHeaderOptions,
 989                                         (OCObserveAction)request->observationOption,
 990                                         (OCObservationId)0);
 991     VERIFY_SUCCESS(result, OC_STACK_OK);
 992
 993     // At this point we know for sure that defaultDeviceHandler exists
 994     ehResult = defaultDeviceHandler(OC_REQUEST_FLAG, &ehRequest,
 995                                   (char*) request->resourceUrl, defaultDeviceHandlerCallbackParameter);
 996     if(ehResult == OC_EH_SLOW)
 997     {
 998         OIC_LOG(INFO, TAG, "This is a slow resource");
 999         request->slowFlag = 1;
1000     }
1001     else if(ehResult == OC_EH_ERROR)
1002     {
1003         FindAndDeleteServerRequest(request);
1004     }
1005     result = EntityHandlerCodeToOCStackCode(ehResult);
1006 exit:
1007     OCPayloadDestroy(ehRequest.payload);
1008     return result;
1009 }
1010
1011 static OCStackResult
1012 HandleResourceWithEntityHandler (OCServerRequest *request,
1013                                  OCResource *resource,
1014                                  uint8_t collectionResource)
1015 {
1016     if(!request || ! resource)
1017     {
1018         return OC_STACK_INVALID_PARAM;
1019     }
1020
1021     OCStackResult result = OC_STACK_ERROR;
1022     OCEntityHandlerResult ehResult = OC_EH_ERROR;
1023     OCEntityHandlerFlag ehFlag = OC_REQUEST_FLAG;
1024     ResourceObserver *resObs = NULL;
1025
1026     OCEntityHandlerRequest ehRequest = {0};
1027
1028     OIC_LOG(INFO, TAG, "Entering HandleResourceWithEntityHandler");
1029     OCPayloadType type = PAYLOAD_TYPE_REPRESENTATION;
1030     // check the security resource
1031     if (request && request->resourceUrl && SRMIsSecurityResourceURI(request->resourceUrl))
1032     {
1033         type = PAYLOAD_TYPE_SECURITY;
1034
1035     }
1036
1037     if (request && strcmp(request->resourceUrl, OC_RSRVD_RD_URI) == 0)
1038     {
1039         type = PAYLOAD_TYPE_RD;
1040     }
1041
1042     result = FormOCEntityHandlerRequest(&ehRequest,
1043                                         (OCRequestHandle)request,
1044                                         request->method,
1045                                         &request->devAddr,
1046                                         (OCResourceHandle)resource,
1047                                         request->query,
1048                                         type,
1049                                         request->payload,
1050                                         request->payloadSize,
1051                                         request->numRcvdVendorSpecificHeaderOptions,
1052                                         request->rcvdVendorSpecificHeaderOptions,
1053                                         (OCObserveAction)request->observationOption,
1054                                         0);
1055     VERIFY_SUCCESS(result, OC_STACK_OK);
1056
1057     if(ehRequest.obsInfo.action == OC_OBSERVE_NO_OPTION)
1058     {
1059         OIC_LOG(INFO, TAG, "No observation requested");
1060         ehFlag = OC_REQUEST_FLAG;
1061     }
1062     else if(ehRequest.obsInfo.action == OC_OBSERVE_REGISTER && !collectionResource)
1063     {
1064         OIC_LOG(INFO, TAG, "Observation registration requested");
1065
1066         ResourceObserver *obs = GetObserverUsingToken (request->requestToken,
1067                                     request->tokenLength);
1068
1069         if (obs)
1070         {
1071             OIC_LOG (INFO, TAG, "Observer with this token already present");
1072             OIC_LOG (INFO, TAG, "Possibly re-transmitted CON OBS request");
1073             OIC_LOG (INFO, TAG, "Not adding observer. Not responding to client");
1074             OIC_LOG (INFO, TAG, "The first request for this token is already ACKED.");
1075
1076             // server requests are usually free'd when the response is sent out
1077             // for the request in ocserverrequest.c : HandleSingleResponse()
1078             // Since we are making an early return and not responding, the server request
1079             // needs to be deleted.
1080             FindAndDeleteServerRequest (request);
1081             return OC_STACK_OK;
1082         }
1083
1084         result = GenerateObserverId(&ehRequest.obsInfo.obsId);
1085         VERIFY_SUCCESS(result, OC_STACK_OK);
1086
1087         result = AddObserver ((const char*)(request->resourceUrl),
1088                 (const char *)(request->query),
1089                 ehRequest.obsInfo.obsId, request->requestToken, request->tokenLength,
1090                 resource, request->qos, request->acceptFormat,
1091                 &request->devAddr);
1092
1093         if(result == OC_STACK_OK)
1094         {
1095             OIC_LOG(INFO, TAG, "Added observer successfully");
1096             request->observeResult = OC_STACK_OK;
1097             ehFlag = (OCEntityHandlerFlag)(OC_REQUEST_FLAG | OC_OBSERVE_FLAG);
1098         }
1099         else
1100         {
1101             // The error in observeResult for the request will be used when responding to this
1102             // request by omitting the observation option/sequence number.
1103             request->observeResult = OC_STACK_ERROR;
1104             OIC_LOG(ERROR, TAG, "Observer Addition failed");
1105             ehFlag = OC_REQUEST_FLAG;
1106             FindAndDeleteServerRequest(request);
1107             goto exit;
1108         }
1109
1110     }
1111     else if(ehRequest.obsInfo.action == OC_OBSERVE_DEREGISTER &&
1112             !collectionResource)
1113     {
1114         OIC_LOG(INFO, TAG, "Deregistering observation requested");
1115
1116         resObs = GetObserverUsingToken (request->requestToken, request->tokenLength);
1117
1118         if (NULL == resObs)
1119         {
1120             // Stack does not contain this observation request
1121             // Either token is incorrect or observation list is corrupted
1122             result = OC_STACK_ERROR;
1123             goto exit;
1124         }
1125         ehRequest.obsInfo.obsId = resObs->observeId;
1126         ehFlag = (OCEntityHandlerFlag)(ehFlag | OC_OBSERVE_FLAG);
1127
1128         result = DeleteObserverUsingToken (request->requestToken, request->tokenLength);
1129
1130         if(result == OC_STACK_OK)
1131         {
1132             OIC_LOG(INFO, TAG, "Removed observer successfully");
1133             request->observeResult = OC_STACK_OK;
1134         }
1135         else
1136         {
1137             request->observeResult = OC_STACK_ERROR;
1138             OIC_LOG(ERROR, TAG, "Observer Removal failed");
1139             FindAndDeleteServerRequest(request);
1140             goto exit;
1141         }
1142     }
1143     else
1144     {
1145         result = OC_STACK_ERROR;
1146         goto exit;
1147     }
1148
1149     ehResult = resource->entityHandler(ehFlag, &ehRequest, resource->entityHandlerCallbackParam);
1150     if(ehResult == OC_EH_SLOW)
1151     {
1152         OIC_LOG(INFO, TAG, "This is a slow resource");
1153         request->slowFlag = 1;
1154     }
1155     else if(ehResult == OC_EH_ERROR)
1156     {
1157         FindAndDeleteServerRequest(request);
1158     }
1159     result = EntityHandlerCodeToOCStackCode(ehResult);
1160 exit:
1161     OCPayloadDestroy(ehRequest.payload);
1162     return result;
1163 }
1164
1165 static OCStackResult
1166 HandleCollectionResourceDefaultEntityHandler (OCServerRequest *request,
1167                                               OCResource *resource)
1168 {
1169     if(!request || !resource)
1170     {
1171         return OC_STACK_INVALID_PARAM;
1172     }
1173
1174     OCStackResult result = OC_STACK_ERROR;
1175     OCEntityHandlerRequest ehRequest = {0};
1176
1177     result = FormOCEntityHandlerRequest(&ehRequest,
1178                                         (OCRequestHandle)request,
1179                                         request->method,
1180                                         &request->devAddr,
1181                                         (OCResourceHandle)resource,
1182                                         request->query,
1183                                         PAYLOAD_TYPE_REPRESENTATION,
1184                                         request->payload,
1185                                         request->payloadSize,
1186                                         request->numRcvdVendorSpecificHeaderOptions,
1187                                         request->rcvdVendorSpecificHeaderOptions,
1188                                         (OCObserveAction)request->observationOption,
1189                                         (OCObservationId)0);
1190     if(result == OC_STACK_OK)
1191     {
1192         result = DefaultCollectionEntityHandler (OC_REQUEST_FLAG, &ehRequest);
1193     }
1194
1195     OCPayloadDestroy(ehRequest.payload);
1196     return result;
1197 }
1198
1199 OCStackResult
1200 ProcessRequest(ResourceHandling resHandling, OCResource *resource, OCServerRequest *request)
1201 {
1202     OCStackResult ret = OC_STACK_OK;
1203
1204     switch (resHandling)
1205     {
1206         case OC_RESOURCE_VIRTUAL:
1207         {
1208             ret = HandleVirtualResource (request, resource);
1209             break;
1210         }
1211         case OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER:
1212         {
1213             ret = HandleDefaultDeviceEntityHandler(request);
1214             break;
1215         }
1216         case OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER:
1217         {
1218             OIC_LOG(INFO, TAG, "OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER");
1219             return OC_STACK_ERROR;
1220         }
1221         case OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER:
1222         {
1223             ret = HandleResourceWithEntityHandler (request, resource, 0);
1224             break;
1225         }
1226         case OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER:
1227         {
1228             ret = HandleResourceWithEntityHandler (request, resource, 1);
1229             break;
1230         }
1231         case OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER:
1232         {
1233             ret = HandleCollectionResourceDefaultEntityHandler (request, resource);
1234             break;
1235         }
1236         case OC_RESOURCE_NOT_SPECIFIED:
1237         {
1238             ret = OC_STACK_NO_RESOURCE;
1239             break;
1240         }
1241         default:
1242         {
1243             OIC_LOG(INFO, TAG, "Invalid Resource Determination");
1244             return OC_STACK_ERROR;
1245         }
1246     }
1247     return ret;
1248 }
1249
1250 void DeletePlatformInfo()
1251 {
1252     OIC_LOG(INFO, TAG, "Deleting platform info.");
1253
1254     OICFree(savedPlatformInfo.platformID);
1255     savedPlatformInfo.platformID = NULL;
1256
1257     OICFree(savedPlatformInfo.manufacturerName);
1258     savedPlatformInfo.manufacturerName = NULL;
1259
1260     OICFree(savedPlatformInfo.manufacturerUrl);
1261     savedPlatformInfo.manufacturerUrl = NULL;
1262
1263     OICFree(savedPlatformInfo.modelNumber);
1264     savedPlatformInfo.modelNumber = NULL;
1265
1266     OICFree(savedPlatformInfo.dateOfManufacture);
1267     savedPlatformInfo.dateOfManufacture = NULL;
1268
1269     OICFree(savedPlatformInfo.platformVersion);
1270     savedPlatformInfo.platformVersion = NULL;
1271
1272     OICFree(savedPlatformInfo.operatingSystemVersion);
1273     savedPlatformInfo.operatingSystemVersion = NULL;
1274
1275     OICFree(savedPlatformInfo.hardwareVersion);
1276     savedPlatformInfo.hardwareVersion = NULL;
1277
1278     OICFree(savedPlatformInfo.firmwareVersion);
1279     savedPlatformInfo.firmwareVersion = NULL;
1280
1281     OICFree(savedPlatformInfo.supportUrl);
1282     savedPlatformInfo.supportUrl = NULL;
1283
1284     OICFree(savedPlatformInfo.systemTime);
1285     savedPlatformInfo.systemTime = NULL;
1286 }
1287
1288 static OCStackResult DeepCopyPlatFormInfo(OCPlatformInfo info)
1289 {
1290     savedPlatformInfo.platformID = OICStrdup(info.platformID);
1291     savedPlatformInfo.manufacturerName = OICStrdup(info.manufacturerName);
1292     savedPlatformInfo.manufacturerUrl = OICStrdup(info.manufacturerUrl);
1293     savedPlatformInfo.modelNumber = OICStrdup(info.modelNumber);
1294     savedPlatformInfo.dateOfManufacture = OICStrdup(info.dateOfManufacture);
1295     savedPlatformInfo.platformVersion = OICStrdup(info.platformVersion);
1296     savedPlatformInfo.operatingSystemVersion = OICStrdup(info.operatingSystemVersion);
1297     savedPlatformInfo.hardwareVersion = OICStrdup(info.hardwareVersion);
1298     savedPlatformInfo.firmwareVersion = OICStrdup(info.firmwareVersion);
1299     savedPlatformInfo.supportUrl = OICStrdup(info.supportUrl);
1300     savedPlatformInfo.systemTime = OICStrdup(info.systemTime);
1301
1302     if ((!savedPlatformInfo.platformID && info.platformID)||
1303         (!savedPlatformInfo.manufacturerName && info.manufacturerName)||
1304         (!savedPlatformInfo.manufacturerUrl && info.manufacturerUrl)||
1305         (!savedPlatformInfo.modelNumber && info.modelNumber)||
1306         (!savedPlatformInfo.dateOfManufacture && info.dateOfManufacture)||
1307         (!savedPlatformInfo.platformVersion && info.platformVersion)||
1308         (!savedPlatformInfo.operatingSystemVersion && info.operatingSystemVersion)||
1309         (!savedPlatformInfo.hardwareVersion && info.hardwareVersion)||
1310         (!savedPlatformInfo.firmwareVersion && info.firmwareVersion)||
1311         (!savedPlatformInfo.supportUrl && info.supportUrl)||
1312         (!savedPlatformInfo.systemTime && info.systemTime))
1313     {
1314         DeletePlatformInfo();
1315         return OC_STACK_INVALID_PARAM;
1316     }
1317
1318     return OC_STACK_OK;
1319
1320 }
1321
1322 OCStackResult SavePlatformInfo(OCPlatformInfo info)
1323 {
1324     DeletePlatformInfo();
1325
1326     OCStackResult res = DeepCopyPlatFormInfo(info);
1327
1328     if (res != OC_STACK_OK)
1329     {
1330         OIC_LOG_V(ERROR, TAG, "Failed to save platform info. errno(%d)", res);
1331     }
1332     else
1333     {
1334         OIC_LOG(INFO, TAG, "Platform info saved.");
1335     }
1336
1337     return res;
1338 }
1339
1340 void DeleteDeviceInfo()
1341 {
1342     OIC_LOG(INFO, TAG, "Deleting device info.");
1343
1344     OICFree(savedDeviceInfo.deviceName);
1345     OCFreeOCStringLL(savedDeviceInfo.types);
1346     OICFree(savedDeviceInfo.specVersion);
1347     OICFree(savedDeviceInfo.dataModleVersion);
1348     savedDeviceInfo.deviceName = NULL;
1349     savedDeviceInfo.specVersion = NULL;
1350     savedDeviceInfo.dataModleVersion = NULL;
1351 }
1352
1353 static OCStackResult DeepCopyDeviceInfo(OCDeviceInfo info)
1354 {
1355     savedDeviceInfo.deviceName = OICStrdup(info.deviceName);
1356
1357     if(!savedDeviceInfo.deviceName && info.deviceName)
1358     {
1359         DeleteDeviceInfo();
1360         return OC_STACK_NO_MEMORY;
1361     }
1362
1363     if (info.types)
1364     {
1365         savedDeviceInfo.types = CloneOCStringLL(info.types);
1366         if(!savedDeviceInfo.types && info.types)
1367         {
1368             DeleteDeviceInfo();
1369             return OC_STACK_NO_MEMORY;
1370         }
1371     }
1372
1373     if (info.specVersion)
1374     {
1375         savedDeviceInfo.specVersion = OICStrdup(info.specVersion);
1376         if(!savedDeviceInfo.specVersion && info.specVersion)
1377         {
1378             DeleteDeviceInfo();
1379             return OC_STACK_NO_MEMORY;
1380         }
1381     }
1382     else
1383     {
1384         savedDeviceInfo.specVersion = OICStrdup(OC_SPEC_VERSION);
1385         if(!savedDeviceInfo.specVersion && OC_SPEC_VERSION)
1386         {
1387             DeleteDeviceInfo();
1388             return OC_STACK_NO_MEMORY;
1389         }
1390     }
1391
1392     if (info.dataModleVersion)
1393     {
1394         savedDeviceInfo.dataModleVersion = OICStrdup(info.dataModleVersion);
1395         if(!savedDeviceInfo.dataModleVersion && info.dataModleVersion)
1396         {
1397             DeleteDeviceInfo();
1398             return OC_STACK_NO_MEMORY;
1399         }
1400     }
1401     else
1402     {
1403         savedDeviceInfo.dataModleVersion = OICStrdup(OC_DATA_MODEL_VERSION);
1404         if(!savedDeviceInfo.dataModleVersion && OC_DATA_MODEL_VERSION)
1405         {
1406             DeleteDeviceInfo();
1407             return OC_STACK_NO_MEMORY;
1408         }
1409     }
1410
1411     return OC_STACK_OK;
1412 }
1413
1414 OCStackResult SaveDeviceInfo(OCDeviceInfo info)
1415 {
1416     OCStackResult res = OC_STACK_OK;
1417
1418     DeleteDeviceInfo();
1419
1420     res = DeepCopyDeviceInfo(info);
1421
1422     VERIFY_SUCCESS(res, OC_STACK_OK);
1423
1424     if (OCGetServerInstanceIDString() == NULL)
1425     {
1426         OIC_LOG(INFO, TAG, "Device ID generation failed");
1427         res =  OC_STACK_ERROR;
1428         goto exit;
1429     }
1430
1431     OIC_LOG(INFO, TAG, "Device initialized successfully.");
1432     return OC_STACK_OK;
1433
1434 exit:
1435     DeleteDeviceInfo();
1436     return res;
1437 }