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
 709     bool bMulticast    = false;     // Was the discovery request a multicast request?
 710     OCPayload* payload = NULL;
 711
 712     OIC_LOG(INFO, TAG, "Entering HandleVirtualResource");
 713
 714     OCVirtualResources virtualUriInRequest = GetTypeOfVirtualURI (request->resourceUrl);
 715
 716     // Step 1: Generate the response to discovery request
 717     if (virtualUriInRequest == OC_WELL_KNOWN_URI)
 718     {
 719         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 720         {
 721             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 722             return OC_STACK_UNAUTHORIZED_REQ;
 723         }
 724
 725         char *interfaceQuery = NULL;
 726         char *resourceTypeQuery = NULL;
 727
 728         discoveryResult = getQueryParamsForFiltering (virtualUriInRequest, request->query,
 729                 &interfaceQuery, &resourceTypeQuery);
 730         bool interfaceQueryAllocated = false;
 731         if (!interfaceQuery && !resourceTypeQuery)
 732         {
 733             interfaceQueryAllocated = true;
 734             interfaceQuery = OICStrdup(OC_RSRVD_INTERFACE_LL);
 735         }
 736
 737         if (discoveryResult == OC_STACK_OK)
 738         {
 739             payload = (OCPayload *)OCDiscoveryPayloadCreate();
 740
 741             if (payload)
 742             {
 743                 OCDiscoveryPayload *discPayload = (OCDiscoveryPayload *)payload;
 744                 discPayload->sid = (char *)OICCalloc(1, UUID_STRING_SIZE);
 745                 VERIFY_NON_NULL(discPayload->sid, ERROR, OC_STACK_NO_MEMORY);
 746
 747                 const char* uid = OCGetServerInstanceIDString();
 748                 if (uid)
 749                 {
 750                     memcpy(discPayload->sid, uid, UUID_STRING_SIZE);
 751                 }
 752
 753                 if (!resourceTypeQuery && interfaceQuery && (0 == strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 754                 {
 755                     for (; resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 756                     {
 757                         bool result = false;
 758                         if (resource->resourceProperties & OC_DISCOVERABLE)
 759                         {
 760                             result = true;
 761                         }
 762
 763                         if (result)
 764                         {
 765                             discoveryResult = BuildVirtualResourceResponse(resource,
 766                             discPayload, &request->devAddr, false);
 767                         }
 768                     }
 769                 }
 770                 else
 771                 {
 772                     if (interfaceQuery && (0 != strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 773                     {
 774                         discPayload->uri = OICStrdup(OC_RSRVD_WELL_KNOWN_URI);
 775                         VERIFY_NON_NULL(discPayload->uri, ERROR, OC_STACK_NO_MEMORY);
 776                         if (savedDeviceInfo.deviceName)
 777                         {
 778                             discPayload->name = OICStrdup(savedDeviceInfo.deviceName);
 779                             VERIFY_NON_NULL(discPayload->name, ERROR, OC_STACK_NO_MEMORY);
 780                         }
 781                         discPayload->type = (OCStringLL*)OICCalloc(1, sizeof(OCStringLL));
 782                         VERIFY_NON_NULL(discPayload->type, ERROR, OC_STACK_NO_MEMORY);
 783                         discPayload->type->value = OICStrdup(OC_RSRVD_RESOURCE_TYPE_RES);
 784                         VERIFY_NON_NULL(discPayload->type->value, ERROR, OC_STACK_NO_MEMORY);
 785                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_LL);
 786                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_DEFAULT);
 787                         VERIFY_NON_NULL(discPayload->iface, ERROR, OC_STACK_NO_MEMORY);
 788                     }
 789                     bool foundResourceAtRD = false;
 790                     for (;resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 791                     {
 792 #ifdef WITH_RD
 793                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 794                         {
 795                             OCResource *resource1 = NULL;
 796                             OCDevAddr devAddr;
 797                             discoveryResult = checkResourceExistsAtRD(interfaceQuery,
 798                                 resourceTypeQuery, &resource1, &devAddr);
 799                             if (discoveryResult != OC_STACK_OK)
 800                             {
 801                                  break;
 802                             }
 803                             discoveryResult = BuildVirtualResourceResponse(resource1,
 804                                 discPayload, &devAddr, true);
 805                             if (payload)
 806                             {
 807                                 discPayload->baseURI = OICStrdup(devAddr.addr);
 808                             }
 809                             OICFree(resource1->uri);
 810                             for (OCResourceType *rsrcRt = resource1->rsrcType, *rsrcRtNext = NULL; rsrcRt; )
 811                             {
 812                                 rsrcRtNext = rsrcRt->next;
 813                                 OICFree(rsrcRt->resourcetypename);
 814                                 OICFree(rsrcRt);
 815                                 rsrcRt = rsrcRtNext;
 816                             }
 817
 818                             for (OCResourceInterface *rsrcPtr = resource1->rsrcInterface, *rsrcNext = NULL; rsrcPtr; )
 819                             {
 820                                 rsrcNext = rsrcPtr->next;
 821                                 OICFree(rsrcPtr->name);
 822                                 OICFree(rsrcPtr);
 823                                 rsrcPtr = rsrcNext;
 824                             }
 825                             foundResourceAtRD = true;
 826                         }
 827 #endif
 828                         if (!foundResourceAtRD && includeThisResourceInResponse(resource, interfaceQuery, resourceTypeQuery))
 829                         {
 830                             discoveryResult = BuildVirtualResourceResponse(resource,
 831                                 discPayload, &request->devAddr, false);
 832                         }
 833                     }
 834                     // Set discoveryResult appropriately if no 'valid' resources are available
 835                     if (discPayload->resources == NULL && !foundResourceAtRD)
 836                     {
 837                         discoveryResult = OC_STACK_NO_RESOURCE;
 838                     }
 839                 }
 840             }
 841             else
 842             {
 843                 discoveryResult = OC_STACK_NO_MEMORY;
 844             }
 845         }
 846         else
 847         {
 848             OIC_LOG_V(ERROR, TAG, "Error (%d) parsing query.", discoveryResult);
 849         }
 850         if (interfaceQueryAllocated)
 851         {
 852             OICFree(interfaceQuery);
 853         }
 854     }
 855     else if (virtualUriInRequest == OC_DEVICE_URI)
 856     {
 857         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 858         {
 859             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 860             return OC_STACK_UNAUTHORIZED_REQ;
 861         }
 862
 863         const char* deviceId = OCGetServerInstanceIDString();
 864         if (!deviceId)
 865         {
 866             discoveryResult = OC_STACK_ERROR;
 867         }
 868         else
 869         {
 870             char *dataModelVersions = OCCreateString(savedDeviceInfo.dataModelVersions);
 871             if (!dataModelVersions)
 872             {
 873                 discoveryResult = OC_STACK_NO_MEMORY;
 874             }
 875             else
 876             {
 877                 payload = (OCPayload*) OCDevicePayloadCreate(deviceId, savedDeviceInfo.deviceName,
 878                     savedDeviceInfo.types, savedDeviceInfo.specVersion, dataModelVersions);
 879                 if (!payload)
 880                 {
 881                      discoveryResult = OC_STACK_NO_MEMORY;
 882                 }
 883                 else
 884                 {
 885                      discoveryResult = OC_STACK_OK;
 886                 }
 887                 OICFree(dataModelVersions);
 888             }
 889         }
 890     }
 891     else if (virtualUriInRequest == OC_PLATFORM_URI)
 892     {
 893         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 894         {
 895             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 896             return OC_STACK_UNAUTHORIZED_REQ;
 897         }
 898
 899         payload = (OCPayload*)OCPlatformPayloadCreate(&savedPlatformInfo);
 900         if (!payload)
 901         {
 902             discoveryResult = OC_STACK_NO_MEMORY;
 903         }
 904         else
 905         {
 906             discoveryResult = OC_STACK_OK;
 907         }
 908     }
 909 #ifdef ROUTING_GATEWAY
 910     else if (OC_GATEWAY_URI == virtualUriInRequest)
 911     {
 912         // Received request for a gateway
 913         OIC_LOG(INFO, TAG, "Request is for Gateway Virtual Request");
 914         discoveryResult = RMHandleGatewayRequest(request, resource);
 915
 916     }
 917 #endif
 918
 919     /**
 920      * Step 2: Send the discovery response
 921      *
 922      * Iotivity should respond to discovery requests in below manner:
 923      * 1)If query filter matching fails and discovery request is multicast,
 924      *   it should NOT send any response.
 925      * 2)If query filter matching fails and discovery request is unicast,
 926      *   it should send an error(RESOURCE_NOT_FOUND - 404) response.
 927      * 3)If Server does not have any 'DISCOVERABLE' resources and discovery
 928      *   request is multicast, it should NOT send any response.
 929      * 4)If Server does not have any 'DISCOVERABLE' resources and discovery
 930      *   request is unicast, it should send an error(RESOURCE_NOT_FOUND - 404) response.
 931      */
 932
 933 #ifdef WITH_PRESENCE
 934     if ((virtualUriInRequest == OC_PRESENCE) &&
 935         (resource->resourceProperties & OC_ACTIVE))
 936     {
 937         // Presence uses observer notification api to respond via SendPresenceNotification.
 938         SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
 939     }
 940     else
 941     #endif
 942 #ifdef ROUTING_GATEWAY
 943     // Gateway uses the RMHandleGatewayRequest to respond to the request.
 944     if (OC_GATEWAY_URI != virtualUriInRequest)
 945 #endif
 946     {
 947         if(discoveryResult == OC_STACK_OK)
 948         {
 949             SendNonPersistantDiscoveryResponse(request, resource, payload, OC_EH_OK);
 950         }
 951         else if(bMulticast == false && (request->devAddr.adapter != OC_ADAPTER_RFCOMM_BTEDR) &&
 952                (request->devAddr.adapter != OC_ADAPTER_GATT_BTLE))
 953         {
 954             OIC_LOG_V(ERROR, TAG, "Sending a (%d) error to (%d)  \
 955                 discovery request", discoveryResult, virtualUriInRequest);
 956             SendNonPersistantDiscoveryResponse(request, resource, NULL,
 957                 (discoveryResult == OC_STACK_NO_RESOURCE) ? OC_EH_RESOURCE_NOT_FOUND : OC_EH_ERROR);
 958         }
 959         else
 960         {
 961             // Ignoring the discovery request as per RFC 7252, Section #8.2
 962             OIC_LOG(INFO, TAG, "Silently ignoring the request since device does not have \
 963                 any useful data to send");
 964         }
 965     }
 966
 967     OCPayloadDestroy(payload);
 968
 969     return OC_STACK_OK;
 970 }
 971
 972 static OCStackResult
 973 HandleDefaultDeviceEntityHandler (OCServerRequest *request)
 974 {
 975     if(!request)
 976     {
 977         return OC_STACK_INVALID_PARAM;
 978     }
 979
 980     OCStackResult result = OC_STACK_OK;
 981     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 982     OCEntityHandlerRequest ehRequest = {0};
 983
 984     OIC_LOG(INFO, TAG, "Entering HandleResourceWithDefaultDeviceEntityHandler");
 985     result = FormOCEntityHandlerRequest(&ehRequest,
 986                                         (OCRequestHandle) request,
 987                                         request->method,
 988                                         &request->devAddr,
 989                                         (OCResourceHandle) NULL, request->query,
 990                                         PAYLOAD_TYPE_REPRESENTATION,
 991                                         request->payload,
 992                                         request->payloadSize,
 993                                         request->numRcvdVendorSpecificHeaderOptions,
 994                                         request->rcvdVendorSpecificHeaderOptions,
 995                                         (OCObserveAction)request->observationOption,
 996                                         (OCObservationId)0,
 997                                         request->coapID);
 998     VERIFY_SUCCESS(result, OC_STACK_OK);
 999
1000     // At this point we know for sure that defaultDeviceHandler exists
1001     ehResult = defaultDeviceHandler(OC_REQUEST_FLAG, &ehRequest,
1002                                   (char*) request->resourceUrl, defaultDeviceHandlerCallbackParameter);
1003     if(ehResult == OC_EH_SLOW)
1004     {
1005         OIC_LOG(INFO, TAG, "This is a slow resource");
1006         request->slowFlag = 1;
1007     }
1008     else if(ehResult == OC_EH_ERROR)
1009     {
1010         FindAndDeleteServerRequest(request);
1011     }
1012     result = EntityHandlerCodeToOCStackCode(ehResult);
1013 exit:
1014     OCPayloadDestroy(ehRequest.payload);
1015     return result;
1016 }
1017
1018 static OCStackResult
1019 HandleResourceWithEntityHandler (OCServerRequest *request,
1020                                  OCResource *resource,
1021                                  uint8_t collectionResource)
1022 {
1023     if(!request || ! resource)
1024     {
1025         return OC_STACK_INVALID_PARAM;
1026     }
1027
1028     OCStackResult result = OC_STACK_ERROR;
1029     OCEntityHandlerResult ehResult = OC_EH_ERROR;
1030     OCEntityHandlerFlag ehFlag = OC_REQUEST_FLAG;
1031     ResourceObserver *resObs = NULL;
1032
1033     OCEntityHandlerRequest ehRequest = {0};
1034
1035     OIC_LOG(INFO, TAG, "Entering HandleResourceWithEntityHandler");
1036     OCPayloadType type = PAYLOAD_TYPE_REPRESENTATION;
1037     // check the security resource
1038     if (request && request->resourceUrl && SRMIsSecurityResourceURI(request->resourceUrl))
1039     {
1040         type = PAYLOAD_TYPE_SECURITY;
1041
1042     }
1043
1044     if (request && strcmp(request->resourceUrl, OC_RSRVD_RD_URI) == 0)
1045     {
1046         type = PAYLOAD_TYPE_RD;
1047     }
1048
1049     result = FormOCEntityHandlerRequest(&ehRequest,
1050                                         (OCRequestHandle)request,
1051                                         request->method,
1052                                         &request->devAddr,
1053                                         (OCResourceHandle)resource,
1054                                         request->query,
1055                                         type,
1056                                         request->payload,
1057                                         request->payloadSize,
1058                                         request->numRcvdVendorSpecificHeaderOptions,
1059                                         request->rcvdVendorSpecificHeaderOptions,
1060                                         (OCObserveAction)request->observationOption,
1061                                         0,
1062                                         request->coapID);
1063     VERIFY_SUCCESS(result, OC_STACK_OK);
1064
1065     if(ehRequest.obsInfo.action == OC_OBSERVE_NO_OPTION)
1066     {
1067         OIC_LOG(INFO, TAG, "No observation requested");
1068         ehFlag = OC_REQUEST_FLAG;
1069     }
1070     else if(ehRequest.obsInfo.action == OC_OBSERVE_REGISTER && !collectionResource)
1071     {
1072         OIC_LOG(INFO, TAG, "Observation registration requested");
1073
1074         ResourceObserver *obs = GetObserverUsingToken (request->requestToken,
1075                                     request->tokenLength);
1076
1077         if (obs)
1078         {
1079             OIC_LOG (INFO, TAG, "Observer with this token already present");
1080             OIC_LOG (INFO, TAG, "Possibly re-transmitted CON OBS request");
1081             OIC_LOG (INFO, TAG, "Not adding observer. Not responding to client");
1082             OIC_LOG (INFO, TAG, "The first request for this token is already ACKED.");
1083
1084             // server requests are usually free'd when the response is sent out
1085             // for the request in ocserverrequest.c : HandleSingleResponse()
1086             // Since we are making an early return and not responding, the server request
1087             // needs to be deleted.
1088             FindAndDeleteServerRequest (request);
1089             return OC_STACK_OK;
1090         }
1091
1092         result = GenerateObserverId(&ehRequest.obsInfo.obsId);
1093         VERIFY_SUCCESS(result, OC_STACK_OK);
1094
1095         result = AddObserver ((const char*)(request->resourceUrl),
1096                 (const char *)(request->query),
1097                 ehRequest.obsInfo.obsId, request->requestToken, request->tokenLength,
1098                 resource, request->qos, request->acceptFormat,
1099                 &request->devAddr);
1100
1101         if(result == OC_STACK_OK)
1102         {
1103             OIC_LOG(INFO, TAG, "Added observer successfully");
1104             request->observeResult = OC_STACK_OK;
1105             ehFlag = (OCEntityHandlerFlag)(OC_REQUEST_FLAG | OC_OBSERVE_FLAG);
1106         }
1107         else
1108         {
1109             // The error in observeResult for the request will be used when responding to this
1110             // request by omitting the observation option/sequence number.
1111             request->observeResult = OC_STACK_ERROR;
1112             OIC_LOG(ERROR, TAG, "Observer Addition failed");
1113             ehFlag = OC_REQUEST_FLAG;
1114             FindAndDeleteServerRequest(request);
1115             goto exit;
1116         }
1117
1118     }
1119     else if(ehRequest.obsInfo.action == OC_OBSERVE_DEREGISTER &&
1120             !collectionResource)
1121     {
1122         OIC_LOG(INFO, TAG, "Deregistering observation requested");
1123
1124         resObs = GetObserverUsingToken (request->requestToken, request->tokenLength);
1125
1126         if (NULL == resObs)
1127         {
1128             // Stack does not contain this observation request
1129             // Either token is incorrect or observation list is corrupted
1130             result = OC_STACK_ERROR;
1131             goto exit;
1132         }
1133         ehRequest.obsInfo.obsId = resObs->observeId;
1134         ehFlag = (OCEntityHandlerFlag)(ehFlag | OC_OBSERVE_FLAG);
1135
1136         result = DeleteObserverUsingToken (request->requestToken, request->tokenLength);
1137
1138         if(result == OC_STACK_OK)
1139         {
1140             OIC_LOG(INFO, TAG, "Removed observer successfully");
1141             request->observeResult = OC_STACK_OK;
1142         }
1143         else
1144         {
1145             request->observeResult = OC_STACK_ERROR;
1146             OIC_LOG(ERROR, TAG, "Observer Removal failed");
1147             FindAndDeleteServerRequest(request);
1148             goto exit;
1149         }
1150     }
1151     else
1152     {
1153         result = OC_STACK_ERROR;
1154         goto exit;
1155     }
1156
1157     ehResult = resource->entityHandler(ehFlag, &ehRequest, resource->entityHandlerCallbackParam);
1158     if(ehResult == OC_EH_SLOW)
1159     {
1160         OIC_LOG(INFO, TAG, "This is a slow resource");
1161         request->slowFlag = 1;
1162     }
1163     else if(ehResult == OC_EH_ERROR)
1164     {
1165         FindAndDeleteServerRequest(request);
1166     }
1167     result = EntityHandlerCodeToOCStackCode(ehResult);
1168 exit:
1169     OCPayloadDestroy(ehRequest.payload);
1170     return result;
1171 }
1172
1173 static OCStackResult
1174 HandleCollectionResourceDefaultEntityHandler (OCServerRequest *request,
1175                                               OCResource *resource)
1176 {
1177     if(!request || !resource)
1178     {
1179         return OC_STACK_INVALID_PARAM;
1180     }
1181
1182     OCStackResult result = OC_STACK_ERROR;
1183     OCEntityHandlerRequest ehRequest = {0};
1184
1185     result = FormOCEntityHandlerRequest(&ehRequest,
1186                                         (OCRequestHandle)request,
1187                                         request->method,
1188                                         &request->devAddr,
1189                                         (OCResourceHandle)resource,
1190                                         request->query,
1191                                         PAYLOAD_TYPE_REPRESENTATION,
1192                                         request->payload,
1193                                         request->payloadSize,
1194                                         request->numRcvdVendorSpecificHeaderOptions,
1195                                         request->rcvdVendorSpecificHeaderOptions,
1196                                         (OCObserveAction)request->observationOption,
1197                                         (OCObservationId)0,
1198                                         request->coapID);
1199     if(result == OC_STACK_OK)
1200     {
1201         result = DefaultCollectionEntityHandler (OC_REQUEST_FLAG, &ehRequest);
1202     }
1203
1204     OCPayloadDestroy(ehRequest.payload);
1205     return result;
1206 }
1207
1208 OCStackResult
1209 ProcessRequest(ResourceHandling resHandling, OCResource *resource, OCServerRequest *request)
1210 {
1211     OCStackResult ret = OC_STACK_OK;
1212
1213     switch (resHandling)
1214     {
1215         case OC_RESOURCE_VIRTUAL:
1216         {
1217             ret = HandleVirtualResource (request, resource);
1218             break;
1219         }
1220         case OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER:
1221         {
1222             ret = HandleDefaultDeviceEntityHandler(request);
1223             break;
1224         }
1225         case OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER:
1226         {
1227             OIC_LOG(INFO, TAG, "OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER");
1228             return OC_STACK_ERROR;
1229         }
1230         case OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER:
1231         {
1232             ret = HandleResourceWithEntityHandler (request, resource, 0);
1233             break;
1234         }
1235         case OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER:
1236         {
1237             ret = HandleResourceWithEntityHandler (request, resource, 1);
1238             break;
1239         }
1240         case OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER:
1241         {
1242             ret = HandleCollectionResourceDefaultEntityHandler (request, resource);
1243             break;
1244         }
1245         case OC_RESOURCE_NOT_SPECIFIED:
1246         {
1247             ret = OC_STACK_NO_RESOURCE;
1248             break;
1249         }
1250         default:
1251         {
1252             OIC_LOG(INFO, TAG, "Invalid Resource Determination");
1253             return OC_STACK_ERROR;
1254         }
1255     }
1256     return ret;
1257 }
1258
1259 void DeletePlatformInfo()
1260 {
1261     OIC_LOG(INFO, TAG, "Deleting platform info.");
1262
1263     OICFree(savedPlatformInfo.platformID);
1264     savedPlatformInfo.platformID = NULL;
1265
1266     OICFree(savedPlatformInfo.manufacturerName);
1267     savedPlatformInfo.manufacturerName = NULL;
1268
1269     OICFree(savedPlatformInfo.manufacturerUrl);
1270     savedPlatformInfo.manufacturerUrl = NULL;
1271
1272     OICFree(savedPlatformInfo.modelNumber);
1273     savedPlatformInfo.modelNumber = NULL;
1274
1275     OICFree(savedPlatformInfo.dateOfManufacture);
1276     savedPlatformInfo.dateOfManufacture = NULL;
1277
1278     OICFree(savedPlatformInfo.platformVersion);
1279     savedPlatformInfo.platformVersion = NULL;
1280
1281     OICFree(savedPlatformInfo.operatingSystemVersion);
1282     savedPlatformInfo.operatingSystemVersion = NULL;
1283
1284     OICFree(savedPlatformInfo.hardwareVersion);
1285     savedPlatformInfo.hardwareVersion = NULL;
1286
1287     OICFree(savedPlatformInfo.firmwareVersion);
1288     savedPlatformInfo.firmwareVersion = NULL;
1289
1290     OICFree(savedPlatformInfo.supportUrl);
1291     savedPlatformInfo.supportUrl = NULL;
1292
1293     OICFree(savedPlatformInfo.systemTime);
1294     savedPlatformInfo.systemTime = NULL;
1295 }
1296
1297 static OCStackResult DeepCopyPlatFormInfo(OCPlatformInfo info)
1298 {
1299     savedPlatformInfo.platformID = OICStrdup(info.platformID);
1300     savedPlatformInfo.manufacturerName = OICStrdup(info.manufacturerName);
1301     savedPlatformInfo.manufacturerUrl = OICStrdup(info.manufacturerUrl);
1302     savedPlatformInfo.modelNumber = OICStrdup(info.modelNumber);
1303     savedPlatformInfo.dateOfManufacture = OICStrdup(info.dateOfManufacture);
1304     savedPlatformInfo.platformVersion = OICStrdup(info.platformVersion);
1305     savedPlatformInfo.operatingSystemVersion = OICStrdup(info.operatingSystemVersion);
1306     savedPlatformInfo.hardwareVersion = OICStrdup(info.hardwareVersion);
1307     savedPlatformInfo.firmwareVersion = OICStrdup(info.firmwareVersion);
1308     savedPlatformInfo.supportUrl = OICStrdup(info.supportUrl);
1309     savedPlatformInfo.systemTime = OICStrdup(info.systemTime);
1310
1311     if ((!savedPlatformInfo.platformID && info.platformID)||
1312         (!savedPlatformInfo.manufacturerName && info.manufacturerName)||
1313         (!savedPlatformInfo.manufacturerUrl && info.manufacturerUrl)||
1314         (!savedPlatformInfo.modelNumber && info.modelNumber)||
1315         (!savedPlatformInfo.dateOfManufacture && info.dateOfManufacture)||
1316         (!savedPlatformInfo.platformVersion && info.platformVersion)||
1317         (!savedPlatformInfo.operatingSystemVersion && info.operatingSystemVersion)||
1318         (!savedPlatformInfo.hardwareVersion && info.hardwareVersion)||
1319         (!savedPlatformInfo.firmwareVersion && info.firmwareVersion)||
1320         (!savedPlatformInfo.supportUrl && info.supportUrl)||
1321         (!savedPlatformInfo.systemTime && info.systemTime))
1322     {
1323         DeletePlatformInfo();
1324         return OC_STACK_INVALID_PARAM;
1325     }
1326
1327     return OC_STACK_OK;
1328
1329 }
1330
1331 OCStackResult SavePlatformInfo(OCPlatformInfo info)
1332 {
1333     DeletePlatformInfo();
1334
1335     OCStackResult res = DeepCopyPlatFormInfo(info);
1336
1337     if (res != OC_STACK_OK)
1338     {
1339         OIC_LOG_V(ERROR, TAG, "Failed to save platform info. errno(%d)", res);
1340     }
1341     else
1342     {
1343         OIC_LOG(INFO, TAG, "Platform info saved.");
1344     }
1345
1346     return res;
1347 }
1348
1349 void DeleteDeviceInfo()
1350 {
1351     OIC_LOG(INFO, TAG, "Deleting device info.");
1352
1353     OICFree(savedDeviceInfo.deviceName);
1354     OCFreeOCStringLL(savedDeviceInfo.types);
1355     OICFree(savedDeviceInfo.specVersion);
1356     OCFreeOCStringLL(savedDeviceInfo.dataModelVersions);
1357     savedDeviceInfo.deviceName = NULL;
1358     savedDeviceInfo.specVersion = NULL;
1359     savedDeviceInfo.dataModelVersions = NULL;
1360 }
1361
1362 static OCStackResult DeepCopyDeviceInfo(OCDeviceInfo info)
1363 {
1364     savedDeviceInfo.deviceName = OICStrdup(info.deviceName);
1365
1366     if(!savedDeviceInfo.deviceName && info.deviceName)
1367     {
1368         DeleteDeviceInfo();
1369         return OC_STACK_NO_MEMORY;
1370     }
1371
1372     if (info.types)
1373     {
1374         savedDeviceInfo.types = CloneOCStringLL(info.types);
1375         if(!savedDeviceInfo.types && info.types)
1376         {
1377             DeleteDeviceInfo();
1378             return OC_STACK_NO_MEMORY;
1379         }
1380     }
1381
1382     if (info.specVersion)
1383     {
1384         savedDeviceInfo.specVersion = OICStrdup(info.specVersion);
1385         if(!savedDeviceInfo.specVersion && info.specVersion)
1386         {
1387             DeleteDeviceInfo();
1388             return OC_STACK_NO_MEMORY;
1389         }
1390     }
1391     else
1392     {
1393         savedDeviceInfo.specVersion = OICStrdup(OC_SPEC_VERSION);
1394         if(!savedDeviceInfo.specVersion && OC_SPEC_VERSION)
1395         {
1396             DeleteDeviceInfo();
1397             return OC_STACK_NO_MEMORY;
1398         }
1399     }
1400
1401     if (info.dataModelVersions)
1402     {
1403         savedDeviceInfo.dataModelVersions = CloneOCStringLL(info.dataModelVersions);
1404         if(!savedDeviceInfo.dataModelVersions && info.dataModelVersions)
1405         {
1406             DeleteDeviceInfo();
1407             return OC_STACK_NO_MEMORY;
1408         }
1409     }
1410     else
1411     {
1412         savedDeviceInfo.dataModelVersions = (OCStringLL *)OICCalloc(1,sizeof(OCStringLL));
1413         if (!savedDeviceInfo.dataModelVersions)
1414         {
1415             return OC_STACK_NO_MEMORY;
1416         }
1417         savedDeviceInfo.dataModelVersions->value = OICStrdup(OC_DATA_MODEL_VERSION);
1418         if(!savedDeviceInfo.dataModelVersions->value && OC_DATA_MODEL_VERSION)
1419         {
1420             DeleteDeviceInfo();
1421             return OC_STACK_NO_MEMORY;
1422         }
1423     }
1424
1425     return OC_STACK_OK;
1426 }
1427
1428 OCStackResult SaveDeviceInfo(OCDeviceInfo info)
1429 {
1430     OCStackResult res = OC_STACK_OK;
1431
1432     DeleteDeviceInfo();
1433
1434     res = DeepCopyDeviceInfo(info);
1435
1436     VERIFY_SUCCESS(res, OC_STACK_OK);
1437
1438     if (OCGetServerInstanceIDString() == NULL)
1439     {
1440         OIC_LOG(INFO, TAG, "Device ID generation failed");
1441         res =  OC_STACK_ERROR;
1442         goto exit;
1443     }
1444
1445     OIC_LOG(INFO, TAG, "Device initialized successfully.");
1446     return OC_STACK_OK;
1447
1448 exit:
1449     DeleteDeviceInfo();
1450     return res;
1451 }