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_STRING_H
  30 #include <string.h>
  31 #endif
  32 #ifdef WITH_STRINGS_H
  33 #include <strings.h>
  34 #endif
  35
  36 #include "ocresource.h"
  37 #include "ocresourcehandler.h"
  38 #include "ocobserve.h"
  39 #include "occollection.h"
  40 #include "oic_malloc.h"
  41 #include "oic_string.h"
  42 #include "logger.h"
  43 #include "cJSON.h"
  44 #include "ocpayload.h"
  45 #include "secureresourcemanager.h"
  46 #include "cacommon.h"
  47 #include "cainterface.h"
  48 #include "rdpayload.h"
  49 #include "ocpayload.h"
  50
  51 #ifdef WITH_RD
  52 #include "rd_server.h"
  53 #endif
  54
  55 #ifdef ROUTING_GATEWAY
  56 #include "routingmanager.h"
  57 #endif
  58
  59 /// Module Name
  60 #define TAG "OIC_RI_RESOURCE"
  61
  62 #define VERIFY_SUCCESS(op, successCode) { if (op != successCode) \
  63             {OIC_LOG_V(FATAL, TAG, "%s failed!!", #op); goto exit;} }
  64
  65 #define VERIFY_NON_NULL(arg, logLevel, retVal) { if (!(arg)) { OIC_LOG((logLevel), \
  66              TAG, #arg " is NULL"); return (retVal); } }
  67
  68 #include "platform_features.h"
  69
  70 extern OCResource *headResource;
  71 static OCPlatformInfo savedPlatformInfo = {0};
  72 static OCDeviceInfo savedDeviceInfo = {0};
  73
  74 /**
  75  * Prepares a Payload for response.
  76  */
  77 static OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
  78                                                   OCDiscoveryPayload* payload,
  79                                                   OCDevAddr *endpoint,
  80                                                   bool rdResponse);
  81
  82 //-----------------------------------------------------------------------------
  83 // Default resource entity handler function
  84 //-----------------------------------------------------------------------------
  85 OCEntityHandlerResult defaultResourceEHandler(OCEntityHandlerFlag flag,
  86         OCEntityHandlerRequest * request, void* callbackParam)
  87 {
  88     //TODO ("Implement me!!!!");
  89     // TODO:  remove silence unused param warnings
  90     (void) flag;
  91     (void) request;
  92     (void) callbackParam;
  93     return  OC_EH_OK; // Making sure that the Default EH and the Vendor EH have matching signatures
  94 }
  95
  96 /* This method will retrieve the port at which the secure resource is hosted */
  97 static OCStackResult GetSecurePortInfo(OCDevAddr *endpoint, uint16_t *port)
  98 {
  99     uint16_t p = 0;
 100
 101     if (endpoint->adapter == OC_ADAPTER_IP)
 102     {
 103         if (endpoint->flags & OC_IP_USE_V6)
 104         {
 105             p = caglobals.ip.u6s.port;
 106         }
 107         else if (endpoint->flags & OC_IP_USE_V4)
 108         {
 109             p = caglobals.ip.u4s.port;
 110         }
 111     }
 112
 113     *port = p;
 114     return OC_STACK_OK;
 115 }
 116
 117 #ifdef TCP_ADAPTER
 118 /* This method will retrieve the tcp port */
 119 static OCStackResult GetTCPPortInfo(OCDevAddr *endpoint, uint16_t *port)
 120 {
 121     uint16_t p = 0;
 122
 123     if (endpoint->adapter == OC_ADAPTER_IP)
 124     {
 125         if (endpoint->flags & OC_IP_USE_V4)
 126         {
 127             p = caglobals.tcp.ipv4.port;
 128         }
 129         else if (endpoint->flags & OC_IP_USE_V6)
 130         {
 131             p = caglobals.tcp.ipv6.port;
 132         }
 133     }
 134
 135     *port = p;
 136     return OC_STACK_OK;
 137 }
 138 #endif
 139
 140 /*
 141  * Function will extract 0, 1 or 2 filters from query.
 142  * More than 2 filters or unsupported filters will result in error.
 143  * If both filters are of the same supported type, the 2nd one will be picked.
 144  * Resource and device filters in the SAME query are NOT validated
 145  * and resources will likely not clear filters.
 146  */
 147 static OCStackResult ExtractFiltersFromQuery(char *query, char **filterOne, char **filterTwo)
 148 {
 149
 150     char *key = NULL;
 151     char *value = NULL;
 152     char *restOfQuery = NULL;
 153     int numKeyValuePairsParsed = 0;
 154
 155     *filterOne = NULL;
 156     *filterTwo = NULL;
 157
 158     OIC_LOG_V(INFO, TAG, "Extracting params from %s", query);
 159
 160     char *keyValuePair = strtok_r (query, OC_QUERY_SEPARATOR, &restOfQuery);
 161
 162     while(keyValuePair)
 163     {
 164         if (numKeyValuePairsParsed >= 2)
 165         {
 166             OIC_LOG(ERROR, TAG, "More than 2 queries params in URI.");
 167             return OC_STACK_INVALID_QUERY;
 168         }
 169
 170         key = strtok_r(keyValuePair, OC_KEY_VALUE_DELIMITER, &value);
 171
 172         if (!key || !value)
 173         {
 174             return OC_STACK_INVALID_QUERY;
 175         }
 176         else if (strncasecmp(key, OC_RSRVD_INTERFACE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 177         {
 178             *filterOne = value;     // if
 179         }
 180         else if (strncasecmp(key, OC_RSRVD_RESOURCE_TYPE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 181         {
 182             *filterTwo = value;     // rt
 183         }
 184         else
 185         {
 186             OIC_LOG_V(ERROR, TAG, "Unsupported query key: %s", key);
 187             return OC_STACK_INVALID_QUERY;
 188         }
 189         ++numKeyValuePairsParsed;
 190
 191         keyValuePair = strtok_r(NULL, OC_QUERY_SEPARATOR, &restOfQuery);
 192     }
 193
 194     OIC_LOG_V(INFO, TAG, "Extracted params if: %s and rt: %s.", *filterOne, *filterTwo);
 195     return OC_STACK_OK;
 196 }
 197
 198 static OCVirtualResources GetTypeOfVirtualURI(const char *uriInRequest)
 199 {
 200     if (strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_URI) == 0)
 201     {
 202         return OC_WELL_KNOWN_URI;
 203     }
 204     else if (strcmp(uriInRequest, OC_RSRVD_DEVICE_URI) == 0)
 205     {
 206         return OC_DEVICE_URI;
 207     }
 208     else if (strcmp(uriInRequest, OC_RSRVD_PLATFORM_URI) == 0)
 209     {
 210         return OC_PLATFORM_URI;
 211     }
 212     else if (strcmp(uriInRequest, OC_RSRVD_RESOURCE_TYPES_URI) == 0)
 213     {
 214         return OC_RESOURCE_TYPES_URI;
 215     }
 216 #ifdef ROUTING_GATEWAY
 217     else if (0 == strcmp(uriInRequest, OC_RSRVD_GATEWAY_URI))
 218     {
 219         return OC_GATEWAY_URI;
 220     }
 221 #endif
 222 #ifdef WITH_PRESENCE
 223     else if (strcmp(uriInRequest, OC_RSRVD_PRESENCE_URI) == 0)
 224     {
 225         return OC_PRESENCE;
 226     }
 227 #endif //WITH_PRESENCE
 228     return OC_UNKNOWN_URI;
 229 }
 230
 231 static OCStackResult getQueryParamsForFiltering (OCVirtualResources uri, char *query,
 232                                             char **filterOne, char **filterTwo)
 233 {
 234     if(!filterOne || !filterTwo)
 235     {
 236         return OC_STACK_INVALID_PARAM;
 237     }
 238
 239     *filterOne = NULL;
 240     *filterTwo = NULL;
 241
 242     #ifdef WITH_PRESENCE
 243     if (uri == OC_PRESENCE)
 244     {
 245         //Nothing needs to be done, except for pass a OC_PRESENCE query through as OC_STACK_OK.
 246         OIC_LOG(INFO, TAG, "OC_PRESENCE Request for virtual resource.");
 247         return OC_STACK_OK;
 248     }
 249     #endif
 250
 251     OCStackResult result = OC_STACK_OK;
 252
 253     if (query && *query)
 254     {
 255         result = ExtractFiltersFromQuery(query, filterOne, filterTwo);
 256     }
 257
 258     return result;
 259 }
 260
 261 OCStackResult BuildResponseRepresentation(const OCResource *resourcePtr,
 262                     OCRepPayload** payload)
 263 {
 264     OCRepPayload *tempPayload = OCRepPayloadCreate();
 265
 266     if (!resourcePtr)
 267     {
 268         OCRepPayloadDestroy(tempPayload);
 269         return OC_STACK_INVALID_PARAM;
 270     }
 271
 272     if(!tempPayload)
 273     {
 274         return OC_STACK_NO_MEMORY;
 275     }
 276
 277     OCRepPayloadSetUri(tempPayload, resourcePtr->uri);
 278
 279     OCResourceType *resType = resourcePtr->rsrcType;
 280     while(resType)
 281     {
 282         OCRepPayloadAddResourceType(tempPayload, resType->resourcetypename);
 283         resType = resType->next;
 284     }
 285
 286     OCResourceInterface *resInterface = resourcePtr->rsrcInterface;
 287     while(resInterface)
 288     {
 289         OCRepPayloadAddInterface(tempPayload, resInterface->name);
 290         resInterface = resInterface->next;
 291     }
 292
 293     OCAttribute *resAttrib = resourcePtr->rsrcAttributes;
 294     while(resAttrib)
 295     {
 296         OCRepPayloadSetPropString(tempPayload, resAttrib->attrName,
 297                                 resAttrib->attrValue);
 298         resAttrib = resAttrib->next;
 299     }
 300
 301     if(!*payload)
 302     {
 303         *payload = tempPayload;
 304     }
 305     else
 306     {
 307         OCRepPayloadAppend(*payload, tempPayload);
 308     }
 309
 310     return OC_STACK_OK;
 311 }
 312
 313 OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
 314                         OCDiscoveryPayload *payload, OCDevAddr *devAddr, bool rdResponse)
 315 {
 316     if (!resourcePtr || !payload)
 317     {
 318         return OC_STACK_INVALID_PARAM;
 319     }
 320     uint16_t securePort = 0;
 321     if (resourcePtr->resourceProperties & OC_SECURE)
 322     {
 323        if (GetSecurePortInfo(devAddr, &securePort) != OC_STACK_OK)
 324        {
 325            securePort = 0;
 326        }
 327     }
 328
 329     if (rdResponse)
 330     {
 331         securePort = devAddr->port;
 332     }
 333
 334     uint16_t tcpPort = 0;
 335 #ifdef TCP_ADAPTER
 336     if (GetTCPPortInfo(devAddr, &tcpPort) != OC_STACK_OK)
 337     {
 338         tcpPort = 0;
 339     }
 340     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort, tcpPort);
 341 #else
 342     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort);
 343 #endif
 344
 345     return OC_STACK_OK;
 346 }
 347
 348 uint8_t IsCollectionResource (OCResource *resource)
 349 {
 350     if(!resource)
 351     {
 352         return 0;
 353     }
 354
 355     if(resource->rsrcChildResourcesHead != NULL)
 356     {
 357         return 1;
 358     }
 359
 360     return 0;
 361 }
 362
 363 OCResource *FindResourceByUri(const char* resourceUri)
 364 {
 365     if(!resourceUri)
 366     {
 367         return NULL;
 368     }
 369
 370     OCResource * pointer = headResource;
 371     while (pointer)
 372     {
 373         if (strcmp(resourceUri, pointer->uri) == 0)
 374         {
 375             return pointer;
 376         }
 377         pointer = pointer->next;
 378     }
 379     OIC_LOG_V(INFO, TAG, "Resource %s not found", resourceUri);
 380     return NULL;
 381 }
 382
 383
 384 OCStackResult DetermineResourceHandling (const OCServerRequest *request,
 385                                          ResourceHandling *handling,
 386                                          OCResource **resource)
 387 {
 388     if(!request || !handling || !resource)
 389     {
 390         return OC_STACK_INVALID_PARAM;
 391     }
 392
 393     OIC_LOG_V(INFO, TAG, "DetermineResourceHandling for %s", request->resourceUrl);
 394
 395     // Check if virtual resource
 396     if (GetTypeOfVirtualURI(request->resourceUrl) != OC_UNKNOWN_URI)
 397     {
 398         OIC_LOG_V (INFO, TAG, "%s is virtual", request->resourceUrl);
 399         *handling = OC_RESOURCE_VIRTUAL;
 400         *resource = headResource;
 401         return OC_STACK_OK;
 402     }
 403     if (strlen((const char*)(request->resourceUrl)) == 0)
 404     {
 405         // Resource URL not specified
 406         *handling = OC_RESOURCE_NOT_SPECIFIED;
 407         return OC_STACK_NO_RESOURCE;
 408     }
 409     else
 410     {
 411         OCResource *resourcePtr = FindResourceByUri((const char*)request->resourceUrl);
 412         *resource = resourcePtr;
 413         if (!resourcePtr)
 414         {
 415             if(defaultDeviceHandler)
 416             {
 417                 *handling = OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER;
 418                 return OC_STACK_OK;
 419             }
 420
 421             // Resource does not exist
 422             // and default device handler does not exist
 423             *handling = OC_RESOURCE_NOT_SPECIFIED;
 424             return OC_STACK_NO_RESOURCE;
 425         }
 426
 427         if (IsCollectionResource (resourcePtr))
 428         {
 429             // Collection resource
 430             if (resourcePtr->entityHandler != defaultResourceEHandler)
 431             {
 432                 *handling = OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER;
 433                 return OC_STACK_OK;
 434             }
 435             else
 436             {
 437                 *handling = OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER;
 438                 return OC_STACK_OK;
 439             }
 440         }
 441         else
 442         {
 443             // Resource not a collection
 444             if (resourcePtr->entityHandler != defaultResourceEHandler)
 445             {
 446                 *handling = OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER;
 447                 return OC_STACK_OK;
 448             }
 449             else
 450             {
 451                 *handling = OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER;
 452                 return OC_STACK_OK;
 453             }
 454         }
 455     }
 456 }
 457
 458 OCStackResult EntityHandlerCodeToOCStackCode(OCEntityHandlerResult ehResult)
 459 {
 460     OCStackResult result;
 461
 462     switch (ehResult)
 463     {
 464         case OC_EH_OK:
 465             result = OC_STACK_OK;
 466             break;
 467         case OC_EH_SLOW:
 468             result = OC_STACK_SLOW_RESOURCE;
 469             break;
 470         case OC_EH_ERROR:
 471             result = OC_STACK_ERROR;
 472             break;
 473         case OC_EH_FORBIDDEN:
 474             result = OC_STACK_RESOURCE_ERROR;
 475             break;
 476         case OC_EH_RESOURCE_CREATED:
 477             result = OC_STACK_RESOURCE_CREATED;
 478             break;
 479         case OC_EH_RESOURCE_DELETED:
 480             result = OC_STACK_RESOURCE_DELETED;
 481             break;
 482         case OC_EH_RESOURCE_NOT_FOUND:
 483             result = OC_STACK_NO_RESOURCE;
 484             break;
 485         default:
 486             result = OC_STACK_ERROR;
 487     }
 488
 489     return result;
 490 }
 491
 492 static bool resourceMatchesRTFilter(OCResource *resource, char *resourceTypeFilter)
 493 {
 494     if (!resource)
 495     {
 496         return false;
 497     }
 498
 499     // Null or empty is analogous to no filter.
 500     if (resourceTypeFilter == NULL || *resourceTypeFilter == 0)
 501     {
 502         return true;
 503     }
 504
 505     OCResourceType *resourceTypePtr = resource->rsrcType;
 506
 507     while (resourceTypePtr)
 508     {
 509         if (strcmp (resourceTypePtr->resourcetypename, resourceTypeFilter) == 0)
 510         {
 511             return true;
 512         }
 513         resourceTypePtr = resourceTypePtr->next;
 514     }
 515
 516     OIC_LOG_V(INFO, TAG, "%s does not contain rt=%s.", resource->uri, resourceTypeFilter);
 517     return false;
 518 }
 519
 520 static bool resourceMatchesIFFilter(OCResource *resource, char *interfaceFilter)
 521 {
 522     if (!resource)
 523     {
 524         return false;
 525     }
 526
 527     // Null or empty is analogous to no filter.
 528     if (interfaceFilter == NULL || *interfaceFilter == 0)
 529     {
 530         return true;
 531     }
 532
 533     OCResourceInterface *interfacePtr = resource->rsrcInterface;
 534
 535     while (interfacePtr)
 536     {
 537         if ((strcmp (interfacePtr->name, interfaceFilter) == 0) &&
 538             (strcmp (OC_RSRVD_INTERFACE_LL, interfaceFilter) == 0 ||
 539              strcmp (OC_RSRVD_INTERFACE_DEFAULT, interfaceFilter) == 0))
 540         {
 541             return true;
 542         }
 543         interfacePtr = interfacePtr->next;
 544     }
 545
 546     OIC_LOG_V(INFO, TAG, "%s does not contain if=%s.", resource->uri, interfaceFilter);
 547     return false;
 548 }
 549
 550 /*
 551  * If the filters are null, they will be assumed to NOT be present
 552  * and the resource will not be matched against them.
 553  * Function will return true if all non null AND non empty filters passed in find a match.
 554  */
 555 static bool includeThisResourceInResponse(OCResource *resource,
 556                                           char *interfaceFilter,
 557                                           char *resourceTypeFilter)
 558 {
 559     if (!resource)
 560     {
 561         OIC_LOG(ERROR, TAG, "Invalid resource");
 562         return false;
 563     }
 564
 565     if (resource->resourceProperties & OC_EXPLICIT_DISCOVERABLE)
 566     {
 567         /*
 568          * At least one valid filter should be available to
 569          * include the resource in discovery response
 570          */
 571         if (!(resourceTypeFilter && *resourceTypeFilter))
 572         {
 573             OIC_LOG_V(INFO, TAG, "%s no query string for EXPLICIT_DISCOVERABLE \
 574                 resource", resource->uri);
 575             return false;
 576         }
 577     }
 578     else if ( !(resource->resourceProperties & OC_ACTIVE) ||
 579          !(resource->resourceProperties & OC_DISCOVERABLE))
 580     {
 581         OIC_LOG_V(INFO, TAG, "%s not ACTIVE or DISCOVERABLE", resource->uri);
 582         return false;
 583     }
 584
 585     return resourceMatchesIFFilter(resource, interfaceFilter) &&
 586            resourceMatchesRTFilter(resource, resourceTypeFilter);
 587
 588 }
 589
 590 OCStackResult SendNonPersistantDiscoveryResponse(OCServerRequest *request, OCResource *resource,
 591                                 OCPayload *discoveryPayload, OCEntityHandlerResult ehResult)
 592 {
 593     OCEntityHandlerResponse response = {0};
 594
 595     response.ehResult = ehResult;
 596     response.payload = discoveryPayload;
 597     response.persistentBufferFlag = 0;
 598     response.requestHandle = (OCRequestHandle) request;
 599     response.resourceHandle = (OCResourceHandle) resource;
 600
 601     return OCDoResponse(&response);
 602 }
 603
 604 #ifdef WITH_RD
 605 static OCStackResult checkResourceExistsAtRD(const char *interfaceType, const char *resourceType,
 606      OCResource **payload, OCDevAddr *devAddr)
 607 {
 608     OCResourceCollectionPayload *repPayload;
 609     if (!payload)
 610     {
 611         return OC_STACK_ERROR;
 612     }
 613     if (OCRDCheckPublishedResource(interfaceType, resourceType, &repPayload, devAddr) == OC_STACK_OK)
 614     {
 615         if (!repPayload)
 616         {
 617             return OC_STACK_ERROR;
 618         }
 619         OCResource *ptr = ((OCResource *) OICCalloc(1, sizeof(OCResource)));
 620         if (!ptr)
 621         {
 622            return OC_STACK_NO_MEMORY;
 623         }
 624
 625         ptr->uri = OICStrdup(repPayload->setLinks->href);
 626         if (!ptr->uri)
 627         {
 628            return OC_STACK_NO_MEMORY;
 629         }
 630         OCStringLL *rt = repPayload->setLinks->rt;
 631         while (rt)
 632         {
 633             OCResourceType *temp = (OCResourceType *) OICCalloc(1, sizeof(OCResourceType));
 634             if(!temp)
 635             {
 636                 OICFree(ptr->uri);
 637                 return OC_STACK_NO_MEMORY;
 638             }
 639             temp->next = NULL;
 640             temp->resourcetypename = OICStrdup(rt->value);
 641             if (!ptr->rsrcType)
 642             {
 643                 ptr->rsrcType = temp;
 644             }
 645             else
 646             {
 647                 OCResourceType *type = ptr->rsrcType;
 648                 while (type->next)
 649                 {
 650                     type = type->next;
 651                 }
 652                 type->next = temp;
 653             }
 654             rt = rt->next;
 655         }
 656
 657         OCStringLL *itf = repPayload->setLinks->itf;
 658         while (itf)
 659         {
 660             OCResourceInterface *temp = (OCResourceInterface *) OICCalloc(1, sizeof(OCResourceInterface));
 661             if (!temp)
 662             {
 663                 OICFree(ptr->uri);
 664
 665                 return OC_STACK_NO_MEMORY;
 666             }
 667             temp->next = NULL;
 668             temp->name = OICStrdup(itf->value);
 669             if (!ptr->rsrcInterface)
 670             {
 671                 ptr->rsrcInterface = temp;
 672             }
 673             else
 674             {
 675                 OCResourceInterface *type = ptr->rsrcInterface;
 676                 while (type->next)
 677                 {
 678                     type = type->next;
 679                 }
 680                 type->next = temp;
 681             }
 682             itf = itf->next;
 683         }
 684
 685         ptr->resourceProperties = (OCResourceProperty) repPayload->tags->bitmap;
 686
 687         OCFreeCollectionResource(repPayload);
 688         *payload = ptr;
 689         return OC_STACK_OK;
 690     }
 691     else
 692     {
 693         OIC_LOG_V(ERROR, TAG, "The resource type or interface type doe not exist \
 694                              on the resource directory");
 695     }
 696     return OC_STACK_ERROR;
 697 }
 698 #endif
 699
 700 static OCStackResult HandleVirtualResource (OCServerRequest *request, OCResource* resource)
 701 {
 702     if (!request || !resource)
 703     {
 704         return OC_STACK_INVALID_PARAM;
 705     }
 706
 707     OCStackResult discoveryResult = OC_STACK_ERROR;
 708     OCPayload* payload = NULL;
 709
 710     OIC_LOG(INFO, TAG, "Entering HandleVirtualResource");
 711
 712     OCVirtualResources virtualUriInRequest = GetTypeOfVirtualURI (request->resourceUrl);
 713
 714     // Step 1: Generate the response to discovery request
 715     if (virtualUriInRequest == OC_WELL_KNOWN_URI)
 716     {
 717         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 718         {
 719             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 720             return OC_STACK_UNAUTHORIZED_REQ;
 721         }
 722
 723         char *interfaceQuery = NULL;
 724         char *resourceTypeQuery = NULL;
 725
 726         discoveryResult = getQueryParamsForFiltering (virtualUriInRequest, request->query,
 727                 &interfaceQuery, &resourceTypeQuery);
 728         bool interfaceQueryAllocated = false;
 729         if (!interfaceQuery && !resourceTypeQuery)
 730         {
 731             interfaceQueryAllocated = true;
 732             interfaceQuery = OICStrdup(OC_RSRVD_INTERFACE_LL);
 733         }
 734
 735         if (discoveryResult == OC_STACK_OK)
 736         {
 737             payload = (OCPayload *)OCDiscoveryPayloadCreate();
 738
 739             if (payload)
 740             {
 741                 OCDiscoveryPayload *discPayload = (OCDiscoveryPayload *)payload;
 742                 discPayload->sid = (char *)OICCalloc(1, UUID_STRING_SIZE);
 743                 VERIFY_NON_NULL(discPayload->sid, ERROR, OC_STACK_NO_MEMORY);
 744
 745                 const char* uid = OCGetServerInstanceIDString();
 746                 if (uid)
 747                 {
 748                     memcpy(discPayload->sid, uid, UUID_STRING_SIZE);
 749                 }
 750
 751                 if (!resourceTypeQuery && interfaceQuery && (0 == strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 752                 {
 753                     for (; resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 754                     {
 755                         bool result = false;
 756                         if (resource->resourceProperties & OC_DISCOVERABLE)
 757                         {
 758                             result = true;
 759                         }
 760
 761                         if (result)
 762                         {
 763                             discoveryResult = BuildVirtualResourceResponse(resource,
 764                             discPayload, &request->devAddr, false);
 765                         }
 766                     }
 767                 }
 768                 else
 769                 {
 770                     if (interfaceQuery && (0 != strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 771                     {
 772                         discPayload->uri = OICStrdup(OC_RSRVD_WELL_KNOWN_URI);
 773                         VERIFY_NON_NULL(discPayload->uri, ERROR, OC_STACK_NO_MEMORY);
 774                         if (savedDeviceInfo.deviceName)
 775                         {
 776                             discPayload->name = OICStrdup(savedDeviceInfo.deviceName);
 777                             VERIFY_NON_NULL(discPayload->name, ERROR, OC_STACK_NO_MEMORY);
 778                         }
 779                         discPayload->type = (OCStringLL*)OICCalloc(1, sizeof(OCStringLL));
 780                         VERIFY_NON_NULL(discPayload->type, ERROR, OC_STACK_NO_MEMORY);
 781                         discPayload->type->value = OICStrdup(OC_RSRVD_RESOURCE_TYPE_RES);
 782                         VERIFY_NON_NULL(discPayload->type->value, ERROR, OC_STACK_NO_MEMORY);
 783                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_LL);
 784                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_DEFAULT);
 785                         VERIFY_NON_NULL(discPayload->iface, ERROR, OC_STACK_NO_MEMORY);
 786                     }
 787                     bool foundResourceAtRD = false;
 788                     for (;resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 789                     {
 790 #ifdef WITH_RD
 791                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 792                         {
 793                             OCResource *resource1 = NULL;
 794                             OCDevAddr devAddr;
 795                             discoveryResult = checkResourceExistsAtRD(interfaceQuery,
 796                                 resourceTypeQuery, &resource1, &devAddr);
 797                             if (discoveryResult != OC_STACK_OK)
 798                             {
 799                                  break;
 800                             }
 801                             discoveryResult = BuildVirtualResourceResponse(resource1,
 802                                 discPayload, &devAddr, true);
 803                             if (payload)
 804                             {
 805                                 discPayload->baseURI = OICStrdup(devAddr.addr);
 806                             }
 807                             OICFree(resource1->uri);
 808                             for (OCResourceType *rsrcRt = resource1->rsrcType, *rsrcRtNext = NULL; rsrcRt; )
 809                             {
 810                                 rsrcRtNext = rsrcRt->next;
 811                                 OICFree(rsrcRt->resourcetypename);
 812                                 OICFree(rsrcRt);
 813                                 rsrcRt = rsrcRtNext;
 814                             }
 815
 816                             for (OCResourceInterface *rsrcPtr = resource1->rsrcInterface, *rsrcNext = NULL; rsrcPtr; )
 817                             {
 818                                 rsrcNext = rsrcPtr->next;
 819                                 OICFree(rsrcPtr->name);
 820                                 OICFree(rsrcPtr);
 821                                 rsrcPtr = rsrcNext;
 822                             }
 823                             foundResourceAtRD = true;
 824                         }
 825 #endif
 826                         if (!foundResourceAtRD && includeThisResourceInResponse(resource, interfaceQuery, resourceTypeQuery))
 827                         {
 828                             discoveryResult = BuildVirtualResourceResponse(resource,
 829                                 discPayload, &request->devAddr, false);
 830                         }
 831                     }
 832                     // Set discoveryResult appropriately if no 'valid' resources are available
 833                     if (discPayload->resources == NULL && !foundResourceAtRD)
 834                     {
 835                         discoveryResult = OC_STACK_NO_RESOURCE;
 836                     }
 837                 }
 838             }
 839             else
 840             {
 841                 discoveryResult = OC_STACK_NO_MEMORY;
 842             }
 843         }
 844         else
 845         {
 846             OIC_LOG_V(ERROR, TAG, "Error (%d) parsing query.", discoveryResult);
 847         }
 848         if (interfaceQueryAllocated)
 849         {
 850             OICFree(interfaceQuery);
 851         }
 852     }
 853     else if (virtualUriInRequest == OC_DEVICE_URI)
 854     {
 855         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 856         {
 857             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 858             return OC_STACK_UNAUTHORIZED_REQ;
 859         }
 860
 861         const char* deviceId = OCGetServerInstanceIDString();
 862         if (!deviceId)
 863         {
 864             discoveryResult = OC_STACK_ERROR;
 865         }
 866         else
 867         {
 868             char *dataModelVersions = OCCreateString(savedDeviceInfo.dataModelVersions);
 869             if (!dataModelVersions)
 870             {
 871                 discoveryResult = OC_STACK_NO_MEMORY;
 872             }
 873             else
 874             {
 875                 payload = (OCPayload*) OCDevicePayloadCreate(deviceId, savedDeviceInfo.deviceName,
 876                     savedDeviceInfo.types, savedDeviceInfo.specVersion, dataModelVersions);
 877                 if (!payload)
 878                 {
 879                      discoveryResult = OC_STACK_NO_MEMORY;
 880                 }
 881                 else
 882                 {
 883                      discoveryResult = OC_STACK_OK;
 884                 }
 885                 OICFree(dataModelVersions);
 886             }
 887         }
 888     }
 889     else if (virtualUriInRequest == OC_PLATFORM_URI)
 890     {
 891         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 892         {
 893             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 894             return OC_STACK_UNAUTHORIZED_REQ;
 895         }
 896
 897         payload = (OCPayload*)OCPlatformPayloadCreate(&savedPlatformInfo);
 898         if (!payload)
 899         {
 900             discoveryResult = OC_STACK_NO_MEMORY;
 901         }
 902         else
 903         {
 904             discoveryResult = OC_STACK_OK;
 905         }
 906     }
 907 #ifdef ROUTING_GATEWAY
 908     else if (OC_GATEWAY_URI == virtualUriInRequest)
 909     {
 910         // Received request for a gateway
 911         OIC_LOG(INFO, TAG, "Request is for Gateway Virtual Request");
 912         discoveryResult = RMHandleGatewayRequest(request, resource);
 913
 914     }
 915 #endif
 916
 917     /**
 918      * Step 2: Send the discovery response
 919      *
 920      * Iotivity should respond to discovery requests in below manner:
 921      * 1)If query filter matching fails and discovery request is multicast,
 922      *   it should NOT send any response.
 923      * 2)If query filter matching fails and discovery request is unicast,
 924      *   it should send an error(RESOURCE_NOT_FOUND - 404) response.
 925      * 3)If Server does not have any 'DISCOVERABLE' resources and discovery
 926      *   request is multicast, it should NOT send any response.
 927      * 4)If Server does not have any 'DISCOVERABLE' resources and discovery
 928      *   request is unicast, it should send an error(RESOURCE_NOT_FOUND - 404) response.
 929      */
 930
 931 #ifdef WITH_PRESENCE
 932     if ((virtualUriInRequest == OC_PRESENCE) &&
 933         (resource->resourceProperties & OC_ACTIVE))
 934     {
 935         // Presence uses observer notification api to respond via SendPresenceNotification.
 936         SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
 937     }
 938     else
 939     #endif
 940 #ifdef ROUTING_GATEWAY
 941     // Gateway uses the RMHandleGatewayRequest to respond to the request.
 942     if (OC_GATEWAY_URI != virtualUriInRequest)
 943 #endif
 944     {
 945         if(discoveryResult == OC_STACK_OK)
 946         {
 947             SendNonPersistantDiscoveryResponse(request, resource, payload, OC_EH_OK);
 948         }
 949         else if(((request->devAddr.flags &  OC_MULTICAST) == false) &&
 950             (request->devAddr.adapter != OC_ADAPTER_RFCOMM_BTEDR) &&
 951             (request->devAddr.adapter != OC_ADAPTER_GATT_BTLE))
 952         {
 953             OIC_LOG_V(ERROR, TAG, "Sending a (%d) error to (%d) discovery request",
 954                 discoveryResult, virtualUriInRequest);
 955             SendNonPersistantDiscoveryResponse(request, resource, NULL,
 956                 (discoveryResult == OC_STACK_NO_RESOURCE) ? OC_EH_RESOURCE_NOT_FOUND : OC_EH_ERROR);
 957         }
 958         else
 959         {
 960             // Ignoring the discovery request as per RFC 7252, Section #8.2
 961             OIC_LOG(INFO, TAG, "Silently ignoring the request since no useful data to send. ");
 962         }
 963     }
 964
 965     OCPayloadDestroy(payload);
 966
 967     return OC_STACK_OK;
 968 }
 969
 970 static OCStackResult
 971 HandleDefaultDeviceEntityHandler (OCServerRequest *request)
 972 {
 973     if(!request)
 974     {
 975         return OC_STACK_INVALID_PARAM;
 976     }
 977
 978     OCStackResult result = OC_STACK_OK;
 979     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 980     OCEntityHandlerRequest ehRequest = {0};
 981
 982     OIC_LOG(INFO, TAG, "Entering HandleResourceWithDefaultDeviceEntityHandler");
 983     result = FormOCEntityHandlerRequest(&ehRequest,
 984                                         (OCRequestHandle) request,
 985                                         request->method,
 986                                         &request->devAddr,
 987                                         (OCResourceHandle) NULL, request->query,
 988                                         PAYLOAD_TYPE_REPRESENTATION,
 989                                         request->payload,
 990                                         request->payloadSize,
 991                                         request->numRcvdVendorSpecificHeaderOptions,
 992                                         request->rcvdVendorSpecificHeaderOptions,
 993                                         (OCObserveAction)request->observationOption,
 994                                         (OCObservationId)0,
 995                                         request->coapID);
 996     VERIFY_SUCCESS(result, OC_STACK_OK);
 997
 998     // At this point we know for sure that defaultDeviceHandler exists
 999     ehResult = defaultDeviceHandler(OC_REQUEST_FLAG, &ehRequest,
1000                                   (char*) request->resourceUrl, defaultDeviceHandlerCallbackParameter);
1001     if(ehResult == OC_EH_SLOW)
1002     {
1003         OIC_LOG(INFO, TAG, "This is a slow resource");
1004         request->slowFlag = 1;
1005     }
1006     else if(ehResult == OC_EH_ERROR)
1007     {
1008         FindAndDeleteServerRequest(request);
1009     }
1010     result = EntityHandlerCodeToOCStackCode(ehResult);
1011 exit:
1012     OCPayloadDestroy(ehRequest.payload);
1013     return result;
1014 }
1015
1016 static OCStackResult
1017 HandleResourceWithEntityHandler (OCServerRequest *request,
1018                                  OCResource *resource,
1019                                  uint8_t collectionResource)
1020 {
1021     if(!request || ! resource)
1022     {
1023         return OC_STACK_INVALID_PARAM;
1024     }
1025
1026     OCStackResult result = OC_STACK_ERROR;
1027     OCEntityHandlerResult ehResult = OC_EH_ERROR;
1028     OCEntityHandlerFlag ehFlag = OC_REQUEST_FLAG;
1029     ResourceObserver *resObs = NULL;
1030
1031     OCEntityHandlerRequest ehRequest = {0};
1032
1033     OIC_LOG(INFO, TAG, "Entering HandleResourceWithEntityHandler");
1034     OCPayloadType type = PAYLOAD_TYPE_REPRESENTATION;
1035     // check the security resource
1036     if (request && request->resourceUrl && SRMIsSecurityResourceURI(request->resourceUrl))
1037     {
1038         type = PAYLOAD_TYPE_SECURITY;
1039
1040     }
1041
1042     if (request && strcmp(request->resourceUrl, OC_RSRVD_RD_URI) == 0)
1043     {
1044         type = PAYLOAD_TYPE_RD;
1045     }
1046
1047     result = FormOCEntityHandlerRequest(&ehRequest,
1048                                         (OCRequestHandle)request,
1049                                         request->method,
1050                                         &request->devAddr,
1051                                         (OCResourceHandle)resource,
1052                                         request->query,
1053                                         type,
1054                                         request->payload,
1055                                         request->payloadSize,
1056                                         request->numRcvdVendorSpecificHeaderOptions,
1057                                         request->rcvdVendorSpecificHeaderOptions,
1058                                         (OCObserveAction)request->observationOption,
1059                                         0,
1060                                         request->coapID);
1061     VERIFY_SUCCESS(result, OC_STACK_OK);
1062
1063     if(ehRequest.obsInfo.action == OC_OBSERVE_NO_OPTION)
1064     {
1065         OIC_LOG(INFO, TAG, "No observation requested");
1066         ehFlag = OC_REQUEST_FLAG;
1067     }
1068     else if(ehRequest.obsInfo.action == OC_OBSERVE_REGISTER && !collectionResource)
1069     {
1070         OIC_LOG(INFO, TAG, "Observation registration requested");
1071
1072         ResourceObserver *obs = GetObserverUsingToken (request->requestToken,
1073                                     request->tokenLength);
1074
1075         if (obs)
1076         {
1077             OIC_LOG (INFO, TAG, "Observer with this token already present");
1078             OIC_LOG (INFO, TAG, "Possibly re-transmitted CON OBS request");
1079             OIC_LOG (INFO, TAG, "Not adding observer. Not responding to client");
1080             OIC_LOG (INFO, TAG, "The first request for this token is already ACKED.");
1081
1082             // server requests are usually free'd when the response is sent out
1083             // for the request in ocserverrequest.c : HandleSingleResponse()
1084             // Since we are making an early return and not responding, the server request
1085             // needs to be deleted.
1086             FindAndDeleteServerRequest (request);
1087             return OC_STACK_OK;
1088         }
1089
1090         result = GenerateObserverId(&ehRequest.obsInfo.obsId);
1091         VERIFY_SUCCESS(result, OC_STACK_OK);
1092
1093         result = AddObserver ((const char*)(request->resourceUrl),
1094                 (const char *)(request->query),
1095                 ehRequest.obsInfo.obsId, request->requestToken, request->tokenLength,
1096                 resource, request->qos, request->acceptFormat,
1097                 &request->devAddr);
1098
1099         if(result == OC_STACK_OK)
1100         {
1101             OIC_LOG(INFO, TAG, "Added observer successfully");
1102             request->observeResult = OC_STACK_OK;
1103             ehFlag = (OCEntityHandlerFlag)(OC_REQUEST_FLAG | OC_OBSERVE_FLAG);
1104         }
1105         else
1106         {
1107             // The error in observeResult for the request will be used when responding to this
1108             // request by omitting the observation option/sequence number.
1109             request->observeResult = OC_STACK_ERROR;
1110             OIC_LOG(ERROR, TAG, "Observer Addition failed");
1111             ehFlag = OC_REQUEST_FLAG;
1112             FindAndDeleteServerRequest(request);
1113             goto exit;
1114         }
1115
1116     }
1117     else if(ehRequest.obsInfo.action == OC_OBSERVE_DEREGISTER &&
1118             !collectionResource)
1119     {
1120         OIC_LOG(INFO, TAG, "Deregistering observation requested");
1121
1122         resObs = GetObserverUsingToken (request->requestToken, request->tokenLength);
1123
1124         if (NULL == resObs)
1125         {
1126             // Stack does not contain this observation request
1127             // Either token is incorrect or observation list is corrupted
1128             result = OC_STACK_ERROR;
1129             goto exit;
1130         }
1131         ehRequest.obsInfo.obsId = resObs->observeId;
1132         ehFlag = (OCEntityHandlerFlag)(ehFlag | OC_OBSERVE_FLAG);
1133
1134         result = DeleteObserverUsingToken (request->requestToken, request->tokenLength);
1135
1136         if(result == OC_STACK_OK)
1137         {
1138             OIC_LOG(INFO, TAG, "Removed observer successfully");
1139             request->observeResult = OC_STACK_OK;
1140         }
1141         else
1142         {
1143             request->observeResult = OC_STACK_ERROR;
1144             OIC_LOG(ERROR, TAG, "Observer Removal failed");
1145             FindAndDeleteServerRequest(request);
1146             goto exit;
1147         }
1148     }
1149     else
1150     {
1151         result = OC_STACK_ERROR;
1152         goto exit;
1153     }
1154
1155     ehResult = resource->entityHandler(ehFlag, &ehRequest, resource->entityHandlerCallbackParam);
1156     if(ehResult == OC_EH_SLOW)
1157     {
1158         OIC_LOG(INFO, TAG, "This is a slow resource");
1159         request->slowFlag = 1;
1160     }
1161     else if(ehResult == OC_EH_ERROR)
1162     {
1163         FindAndDeleteServerRequest(request);
1164     }
1165     result = EntityHandlerCodeToOCStackCode(ehResult);
1166 exit:
1167     OCPayloadDestroy(ehRequest.payload);
1168     return result;
1169 }
1170
1171 static OCStackResult
1172 HandleCollectionResourceDefaultEntityHandler (OCServerRequest *request,
1173                                               OCResource *resource)
1174 {
1175     if(!request || !resource)
1176     {
1177         return OC_STACK_INVALID_PARAM;
1178     }
1179
1180     OCStackResult result = OC_STACK_ERROR;
1181     OCEntityHandlerRequest ehRequest = {0};
1182
1183     result = FormOCEntityHandlerRequest(&ehRequest,
1184                                         (OCRequestHandle)request,
1185                                         request->method,
1186                                         &request->devAddr,
1187                                         (OCResourceHandle)resource,
1188                                         request->query,
1189                                         PAYLOAD_TYPE_REPRESENTATION,
1190                                         request->payload,
1191                                         request->payloadSize,
1192                                         request->numRcvdVendorSpecificHeaderOptions,
1193                                         request->rcvdVendorSpecificHeaderOptions,
1194                                         (OCObserveAction)request->observationOption,
1195                                         (OCObservationId)0,
1196                                         request->coapID);
1197     if(result == OC_STACK_OK)
1198     {
1199         result = DefaultCollectionEntityHandler (OC_REQUEST_FLAG, &ehRequest);
1200     }
1201
1202     OCPayloadDestroy(ehRequest.payload);
1203     return result;
1204 }
1205
1206 OCStackResult
1207 ProcessRequest(ResourceHandling resHandling, OCResource *resource, OCServerRequest *request)
1208 {
1209     OCStackResult ret = OC_STACK_OK;
1210
1211     switch (resHandling)
1212     {
1213         case OC_RESOURCE_VIRTUAL:
1214         {
1215             ret = HandleVirtualResource (request, resource);
1216             break;
1217         }
1218         case OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER:
1219         {
1220             ret = HandleDefaultDeviceEntityHandler(request);
1221             break;
1222         }
1223         case OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER:
1224         {
1225             OIC_LOG(INFO, TAG, "OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER");
1226             return OC_STACK_ERROR;
1227         }
1228         case OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER:
1229         {
1230             ret = HandleResourceWithEntityHandler (request, resource, 0);
1231             break;
1232         }
1233         case OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER:
1234         {
1235             ret = HandleResourceWithEntityHandler (request, resource, 1);
1236             break;
1237         }
1238         case OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER:
1239         {
1240             ret = HandleCollectionResourceDefaultEntityHandler (request, resource);
1241             break;
1242         }
1243         case OC_RESOURCE_NOT_SPECIFIED:
1244         {
1245             ret = OC_STACK_NO_RESOURCE;
1246             break;
1247         }
1248         default:
1249         {
1250             OIC_LOG(INFO, TAG, "Invalid Resource Determination");
1251             return OC_STACK_ERROR;
1252         }
1253     }
1254     return ret;
1255 }
1256
1257 void DeletePlatformInfo()
1258 {
1259     OIC_LOG(INFO, TAG, "Deleting platform info.");
1260
1261     OICFree(savedPlatformInfo.platformID);
1262     savedPlatformInfo.platformID = NULL;
1263
1264     OICFree(savedPlatformInfo.manufacturerName);
1265     savedPlatformInfo.manufacturerName = NULL;
1266
1267     OICFree(savedPlatformInfo.manufacturerUrl);
1268     savedPlatformInfo.manufacturerUrl = NULL;
1269
1270     OICFree(savedPlatformInfo.modelNumber);
1271     savedPlatformInfo.modelNumber = NULL;
1272
1273     OICFree(savedPlatformInfo.dateOfManufacture);
1274     savedPlatformInfo.dateOfManufacture = NULL;
1275
1276     OICFree(savedPlatformInfo.platformVersion);
1277     savedPlatformInfo.platformVersion = NULL;
1278
1279     OICFree(savedPlatformInfo.operatingSystemVersion);
1280     savedPlatformInfo.operatingSystemVersion = NULL;
1281
1282     OICFree(savedPlatformInfo.hardwareVersion);
1283     savedPlatformInfo.hardwareVersion = NULL;
1284
1285     OICFree(savedPlatformInfo.firmwareVersion);
1286     savedPlatformInfo.firmwareVersion = NULL;
1287
1288     OICFree(savedPlatformInfo.supportUrl);
1289     savedPlatformInfo.supportUrl = NULL;
1290
1291     OICFree(savedPlatformInfo.systemTime);
1292     savedPlatformInfo.systemTime = NULL;
1293 }
1294
1295 static OCStackResult DeepCopyPlatFormInfo(OCPlatformInfo info)
1296 {
1297     savedPlatformInfo.platformID = OICStrdup(info.platformID);
1298     savedPlatformInfo.manufacturerName = OICStrdup(info.manufacturerName);
1299     savedPlatformInfo.manufacturerUrl = OICStrdup(info.manufacturerUrl);
1300     savedPlatformInfo.modelNumber = OICStrdup(info.modelNumber);
1301     savedPlatformInfo.dateOfManufacture = OICStrdup(info.dateOfManufacture);
1302     savedPlatformInfo.platformVersion = OICStrdup(info.platformVersion);
1303     savedPlatformInfo.operatingSystemVersion = OICStrdup(info.operatingSystemVersion);
1304     savedPlatformInfo.hardwareVersion = OICStrdup(info.hardwareVersion);
1305     savedPlatformInfo.firmwareVersion = OICStrdup(info.firmwareVersion);
1306     savedPlatformInfo.supportUrl = OICStrdup(info.supportUrl);
1307     savedPlatformInfo.systemTime = OICStrdup(info.systemTime);
1308
1309     if ((!savedPlatformInfo.platformID && info.platformID)||
1310         (!savedPlatformInfo.manufacturerName && info.manufacturerName)||
1311         (!savedPlatformInfo.manufacturerUrl && info.manufacturerUrl)||
1312         (!savedPlatformInfo.modelNumber && info.modelNumber)||
1313         (!savedPlatformInfo.dateOfManufacture && info.dateOfManufacture)||
1314         (!savedPlatformInfo.platformVersion && info.platformVersion)||
1315         (!savedPlatformInfo.operatingSystemVersion && info.operatingSystemVersion)||
1316         (!savedPlatformInfo.hardwareVersion && info.hardwareVersion)||
1317         (!savedPlatformInfo.firmwareVersion && info.firmwareVersion)||
1318         (!savedPlatformInfo.supportUrl && info.supportUrl)||
1319         (!savedPlatformInfo.systemTime && info.systemTime))
1320     {
1321         DeletePlatformInfo();
1322         return OC_STACK_INVALID_PARAM;
1323     }
1324
1325     return OC_STACK_OK;
1326
1327 }
1328
1329 OCStackResult SavePlatformInfo(OCPlatformInfo info)
1330 {
1331     DeletePlatformInfo();
1332
1333     OCStackResult res = DeepCopyPlatFormInfo(info);
1334
1335     if (res != OC_STACK_OK)
1336     {
1337         OIC_LOG_V(ERROR, TAG, "Failed to save platform info. errno(%d)", res);
1338     }
1339     else
1340     {
1341         OIC_LOG(INFO, TAG, "Platform info saved.");
1342     }
1343
1344     return res;
1345 }
1346
1347 void DeleteDeviceInfo()
1348 {
1349     OIC_LOG(INFO, TAG, "Deleting device info.");
1350
1351     OICFree(savedDeviceInfo.deviceName);
1352     OCFreeOCStringLL(savedDeviceInfo.types);
1353     OICFree(savedDeviceInfo.specVersion);
1354     OCFreeOCStringLL(savedDeviceInfo.dataModelVersions);
1355     savedDeviceInfo.deviceName = NULL;
1356     savedDeviceInfo.specVersion = NULL;
1357     savedDeviceInfo.dataModelVersions = NULL;
1358 }
1359
1360 static OCStackResult DeepCopyDeviceInfo(OCDeviceInfo info)
1361 {
1362     savedDeviceInfo.deviceName = OICStrdup(info.deviceName);
1363
1364     if(!savedDeviceInfo.deviceName && info.deviceName)
1365     {
1366         DeleteDeviceInfo();
1367         return OC_STACK_NO_MEMORY;
1368     }
1369
1370     if (info.types)
1371     {
1372         savedDeviceInfo.types = CloneOCStringLL(info.types);
1373         if(!savedDeviceInfo.types && info.types)
1374         {
1375             DeleteDeviceInfo();
1376             return OC_STACK_NO_MEMORY;
1377         }
1378     }
1379
1380     if (info.specVersion)
1381     {
1382         savedDeviceInfo.specVersion = OICStrdup(info.specVersion);
1383         if(!savedDeviceInfo.specVersion && info.specVersion)
1384         {
1385             DeleteDeviceInfo();
1386             return OC_STACK_NO_MEMORY;
1387         }
1388     }
1389     else
1390     {
1391         savedDeviceInfo.specVersion = OICStrdup(OC_SPEC_VERSION);
1392         if(!savedDeviceInfo.specVersion && OC_SPEC_VERSION)
1393         {
1394             DeleteDeviceInfo();
1395             return OC_STACK_NO_MEMORY;
1396         }
1397     }
1398
1399     if (info.dataModelVersions)
1400     {
1401         savedDeviceInfo.dataModelVersions = CloneOCStringLL(info.dataModelVersions);
1402         if(!savedDeviceInfo.dataModelVersions && info.dataModelVersions)
1403         {
1404             DeleteDeviceInfo();
1405             return OC_STACK_NO_MEMORY;
1406         }
1407     }
1408     else
1409     {
1410         savedDeviceInfo.dataModelVersions = (OCStringLL *)OICCalloc(1,sizeof(OCStringLL));
1411         if (!savedDeviceInfo.dataModelVersions)
1412         {
1413             return OC_STACK_NO_MEMORY;
1414         }
1415         savedDeviceInfo.dataModelVersions->value = OICStrdup(OC_DATA_MODEL_VERSION);
1416         if(!savedDeviceInfo.dataModelVersions->value && OC_DATA_MODEL_VERSION)
1417         {
1418             DeleteDeviceInfo();
1419             return OC_STACK_NO_MEMORY;
1420         }
1421     }
1422
1423     return OC_STACK_OK;
1424 }
1425
1426 OCStackResult SaveDeviceInfo(OCDeviceInfo info)
1427 {
1428     OCStackResult res = OC_STACK_OK;
1429
1430     DeleteDeviceInfo();
1431
1432     res = DeepCopyDeviceInfo(info);
1433
1434     VERIFY_SUCCESS(res, OC_STACK_OK);
1435
1436     if (OCGetServerInstanceIDString() == NULL)
1437     {
1438         OIC_LOG(INFO, TAG, "Device ID generation failed");
1439         res =  OC_STACK_ERROR;
1440         goto exit;
1441     }
1442
1443     OIC_LOG(INFO, TAG, "Device initialized successfully.");
1444     return OC_STACK_OK;
1445
1446 exit:
1447     DeleteDeviceInfo();
1448     return res;
1449 }