resource/csdk/stack/src/ocresource.c

   1 //******************************************************************
   2 //
   3 // Copyright 2014 Intel Mobile Communications GmbH All Rights Reserved.
   4 //
   5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   6 //
   7 // Licensed under the Apache License, Version 2.0 (the "License");
   8 // you may not use this file except in compliance with the License.
   9 // You may obtain a copy of the License at
  10 //
  11 //      http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 // Unless required by applicable law or agreed to in writing, software
  14 // distributed under the License is distributed on an "AS IS" BASIS,
  15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 // See the License for the specific language governing permissions and
  17 // limitations under the License.
  18 //
  19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  20
  21 // Defining _POSIX_C_SOURCE macro with 200112L (or greater) as value
  22 // causes header files to expose definitions
  23 // corresponding to the POSIX.1-2001 base
  24 // specification (excluding the XSI extension).
  25 // For POSIX.1-2001 base specification,
  26 // Refer http://pubs.opengroup.org/onlinepubs/009695399/
  27 #define _POSIX_C_SOURCE 200112L
  28 #ifndef _GNU_SOURCE
  29 #define _GNU_SOURCE
  30 #endif
  31
  32 #include "iotivity_config.h"
  33 #ifdef HAVE_STRING_H
  34 #include <string.h>
  35 #endif
  36 #ifdef HAVE_STRINGS_H
  37 #include <strings.h>
  38 #endif
  39
  40 #include "ocresource.h"
  41 #include "ocresourcehandler.h"
  42 #include "ocobserve.h"
  43 #include "occollection.h"
  44 #include "oic_malloc.h"
  45 #include "oic_string.h"
  46 #include "logger.h"
  47 #include "cJSON.h"
  48 #include "ocpayload.h"
  49 #include "secureresourcemanager.h"
  50 #include "cacommon.h"
  51 #include "cainterface.h"
  52 #include "ocpayload.h"
  53
  54 #ifdef ROUTING_GATEWAY
  55 #include "routingmanager.h"
  56 #endif
  57
  58 #ifdef RD_SERVER
  59 #include "rd_database.h"
  60 #endif
  61
  62 /// Module Name
  63 #define TAG "OIC_RI_RESOURCE"
  64
  65 #define VERIFY_SUCCESS(op, successCode) { if (op != successCode) \
  66             {OIC_LOG_V(FATAL, TAG, "%s failed!!", #op); goto exit;} }
  67
  68 #define VERIFY_NON_NULL(arg, logLevel, retVal) { if (!(arg)) { OIC_LOG((logLevel), \
  69              TAG, #arg " is NULL"); return (retVal); } }
  70
  71 #include "platform_features.h"
  72
  73 extern OCResource *headResource;
  74 static OCPlatformInfo savedPlatformInfo = {0};
  75 static OCDeviceInfo savedDeviceInfo = {0};
  76
  77 /**
  78  * Prepares a Payload for response.
  79  */
  80 static OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
  81                                                   OCDiscoveryPayload* payload,
  82                                                   OCDevAddr *endpoint);
  83
  84 //-----------------------------------------------------------------------------
  85 // Default resource entity handler function
  86 //-----------------------------------------------------------------------------
  87 OCEntityHandlerResult defaultResourceEHandler(OCEntityHandlerFlag flag,
  88         OCEntityHandlerRequest * request, void* callbackParam)
  89 {
  90     //TODO ("Implement me!!!!");
  91     // TODO:  remove silence unused param warnings
  92     (void) flag;
  93     (void) request;
  94     (void) callbackParam;
  95     return  OC_EH_OK; // Making sure that the Default EH and the Vendor EH have matching signatures
  96 }
  97
  98 /* This method will retrieve the port at which the secure resource is hosted */
  99 static OCStackResult GetSecurePortInfo(OCDevAddr *endpoint, uint16_t *port)
 100 {
 101     uint16_t p = 0;
 102
 103     if (endpoint->adapter == OC_ADAPTER_IP)
 104     {
 105         if (endpoint->flags & OC_IP_USE_V6)
 106         {
 107             p = caglobals.ip.u6s.port;
 108         }
 109         else if (endpoint->flags & OC_IP_USE_V4)
 110         {
 111             p = caglobals.ip.u4s.port;
 112         }
 113     }
 114
 115     *port = p;
 116     return OC_STACK_OK;
 117 }
 118
 119 #ifdef TCP_ADAPTER
 120 /* This method will retrieve the tcp port */
 121 static OCStackResult GetTCPPortInfo(OCDevAddr *endpoint, uint16_t *port)
 122 {
 123     uint16_t p = 0;
 124
 125     if (endpoint->adapter == OC_ADAPTER_IP)
 126     {
 127         if (endpoint->flags & OC_IP_USE_V4)
 128         {
 129             p = caglobals.tcp.ipv4.port;
 130         }
 131         else if (endpoint->flags & OC_IP_USE_V6)
 132         {
 133             p = caglobals.tcp.ipv6.port;
 134         }
 135     }
 136
 137     *port = p;
 138     return OC_STACK_OK;
 139 }
 140 #endif
 141
 142 /*
 143  * Function will extract 0, 1 or 2 filters from query.
 144  * More than 2 filters or unsupported filters will result in error.
 145  * If both filters are of the same supported type, the 2nd one will be picked.
 146  * Resource and device filters in the SAME query are NOT validated
 147  * and resources will likely not clear filters.
 148  */
 149 static OCStackResult ExtractFiltersFromQuery(char *query, char **filterOne, char **filterTwo)
 150 {
 151
 152     char *key = NULL;
 153     char *value = NULL;
 154     char *restOfQuery = NULL;
 155     int numKeyValuePairsParsed = 0;
 156
 157     *filterOne = NULL;
 158     *filterTwo = NULL;
 159
 160     OIC_LOG_V(INFO, TAG, "Extracting params from %s", query);
 161
 162     if (strnlen(query, MAX_QUERY_LENGTH) >= MAX_QUERY_LENGTH)
 163     {
 164         OIC_LOG(ERROR, TAG, "Query exceeds maximum length.");
 165         return OC_STACK_INVALID_QUERY;
 166     }
 167
 168     char *keyValuePair = strtok_r (query, OC_QUERY_SEPARATOR, &restOfQuery);
 169
 170     while(keyValuePair)
 171     {
 172         if (numKeyValuePairsParsed >= 2)
 173         {
 174             OIC_LOG(ERROR, TAG, "More than 2 queries params in URI.");
 175             return OC_STACK_INVALID_QUERY;
 176         }
 177
 178         key = strtok_r(keyValuePair, OC_KEY_VALUE_DELIMITER, &value);
 179
 180         if (!key || !value)
 181         {
 182             return OC_STACK_INVALID_QUERY;
 183         }
 184         else if (strncasecmp(key, OC_RSRVD_INTERFACE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 185         {
 186             *filterOne = value;     // if
 187         }
 188         else if (strncasecmp(key, OC_RSRVD_RESOURCE_TYPE, sizeof(OC_RSRVD_INTERFACE) - 1) == 0)
 189         {
 190             *filterTwo = value;     // rt
 191         }
 192         else
 193         {
 194             OIC_LOG_V(ERROR, TAG, "Unsupported query key: %s", key);
 195             return OC_STACK_INVALID_QUERY;
 196         }
 197         ++numKeyValuePairsParsed;
 198
 199         keyValuePair = strtok_r(NULL, OC_QUERY_SEPARATOR, &restOfQuery);
 200     }
 201
 202     OIC_LOG_V(INFO, TAG, "Extracted params if: %s and rt: %s.", *filterOne, *filterTwo);
 203     return OC_STACK_OK;
 204 }
 205
 206 static OCVirtualResources GetTypeOfVirtualURI(const char *uriInRequest)
 207 {
 208     if (strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_URI) == 0)
 209     {
 210         return OC_WELL_KNOWN_URI;
 211     }
 212     else if (strcmp(uriInRequest, OC_RSRVD_DEVICE_URI) == 0)
 213     {
 214         return OC_DEVICE_URI;
 215     }
 216     else if (strcmp(uriInRequest, OC_RSRVD_PLATFORM_URI) == 0)
 217     {
 218         return OC_PLATFORM_URI;
 219     }
 220     else if (strcmp(uriInRequest, OC_RSRVD_RESOURCE_TYPES_URI) == 0)
 221     {
 222         return OC_RESOURCE_TYPES_URI;
 223     }
 224 #ifdef ROUTING_GATEWAY
 225     else if (0 == strcmp(uriInRequest, OC_RSRVD_GATEWAY_URI))
 226     {
 227         return OC_GATEWAY_URI;
 228     }
 229 #endif
 230 #ifdef WITH_PRESENCE
 231     else if (strcmp(uriInRequest, OC_RSRVD_PRESENCE_URI) == 0)
 232     {
 233         return OC_PRESENCE;
 234     }
 235 #endif //WITH_PRESENCE
 236
 237 #ifdef MQ_BROKER
 238     else if (0 == strcmp(uriInRequest, OC_RSRVD_WELL_KNOWN_MQ_URI))
 239     {
 240         return OC_MQ_BROKER_URI;
 241     }
 242 #endif //MQ_BROKER
 243     return OC_UNKNOWN_URI;
 244 }
 245
 246 static OCStackResult getQueryParamsForFiltering (OCVirtualResources uri, char *query,
 247                                             char **filterOne, char **filterTwo)
 248 {
 249     if(!filterOne || !filterTwo)
 250     {
 251         return OC_STACK_INVALID_PARAM;
 252     }
 253
 254     *filterOne = NULL;
 255     *filterTwo = NULL;
 256
 257     #ifdef WITH_PRESENCE
 258     if (uri == OC_PRESENCE)
 259     {
 260         //Nothing needs to be done, except for pass a OC_PRESENCE query through as OC_STACK_OK.
 261         OIC_LOG(INFO, TAG, "OC_PRESENCE Request for virtual resource.");
 262         return OC_STACK_OK;
 263     }
 264     #endif
 265
 266     OCStackResult result = OC_STACK_OK;
 267
 268     if (query && *query)
 269     {
 270         result = ExtractFiltersFromQuery(query, filterOne, filterTwo);
 271     }
 272
 273     return result;
 274 }
 275
 276 OCStackResult BuildResponseRepresentation(const OCResource *resourcePtr,
 277                     OCRepPayload** payload)
 278 {
 279     OCRepPayload *tempPayload = OCRepPayloadCreate();
 280
 281     if (!resourcePtr)
 282     {
 283         OCRepPayloadDestroy(tempPayload);
 284         return OC_STACK_INVALID_PARAM;
 285     }
 286
 287     if(!tempPayload)
 288     {
 289         return OC_STACK_NO_MEMORY;
 290     }
 291
 292     OCRepPayloadSetUri(tempPayload, resourcePtr->uri);
 293
 294     OCResourceType *resType = resourcePtr->rsrcType;
 295     while(resType)
 296     {
 297         OCRepPayloadAddResourceType(tempPayload, resType->resourcetypename);
 298         resType = resType->next;
 299     }
 300
 301     OCResourceInterface *resInterface = resourcePtr->rsrcInterface;
 302     while(resInterface)
 303     {
 304         OCRepPayloadAddInterface(tempPayload, resInterface->name);
 305         resInterface = resInterface->next;
 306     }
 307
 308     OCAttribute *resAttrib = resourcePtr->rsrcAttributes;
 309     while(resAttrib)
 310     {
 311         OCRepPayloadSetPropString(tempPayload, resAttrib->attrName,
 312                                 resAttrib->attrValue);
 313         resAttrib = resAttrib->next;
 314     }
 315
 316     if(!*payload)
 317     {
 318         *payload = tempPayload;
 319     }
 320     else
 321     {
 322         OCRepPayloadAppend(*payload, tempPayload);
 323     }
 324
 325     return OC_STACK_OK;
 326 }
 327
 328 OCStackResult BuildVirtualResourceResponse(const OCResource *resourcePtr,
 329                         OCDiscoveryPayload *payload, OCDevAddr *devAddr)
 330 {
 331     if (!resourcePtr || !payload)
 332     {
 333         return OC_STACK_INVALID_PARAM;
 334     }
 335     uint16_t securePort = 0;
 336     if (resourcePtr->resourceProperties & OC_SECURE)
 337     {
 338        if (GetSecurePortInfo(devAddr, &securePort) != OC_STACK_OK)
 339        {
 340            securePort = 0;
 341        }
 342     }
 343
 344 #ifdef TCP_ADAPTER
 345     uint16_t tcpPort = 0;
 346     if (GetTCPPortInfo(devAddr, &tcpPort) != OC_STACK_OK)
 347     {
 348         tcpPort = 0;
 349     }
 350     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort, tcpPort);
 351 #else
 352     OCDiscoveryPayloadAddResource(payload, resourcePtr, securePort);
 353 #endif
 354
 355     return OC_STACK_OK;
 356 }
 357
 358 uint8_t IsCollectionResource (OCResource *resource)
 359 {
 360     if(!resource)
 361     {
 362         return 0;
 363     }
 364
 365     if(resource->rsrcChildResourcesHead != NULL)
 366     {
 367         return 1;
 368     }
 369
 370     return 0;
 371 }
 372
 373 OCResource *FindResourceByUri(const char* resourceUri)
 374 {
 375     if(!resourceUri)
 376     {
 377         return NULL;
 378     }
 379
 380     OCResource * pointer = headResource;
 381     while (pointer)
 382     {
 383         if (strcmp(resourceUri, pointer->uri) == 0)
 384         {
 385             return pointer;
 386         }
 387         pointer = pointer->next;
 388     }
 389     OIC_LOG_V(INFO, TAG, "Resource %s not found", resourceUri);
 390     return NULL;
 391 }
 392
 393
 394 OCStackResult DetermineResourceHandling (const OCServerRequest *request,
 395                                          ResourceHandling *handling,
 396                                          OCResource **resource)
 397 {
 398     if(!request || !handling || !resource)
 399     {
 400         return OC_STACK_INVALID_PARAM;
 401     }
 402
 403     OIC_LOG_V(INFO, TAG, "DetermineResourceHandling for %s", request->resourceUrl);
 404
 405     // Check if virtual resource
 406     if (GetTypeOfVirtualURI(request->resourceUrl) != OC_UNKNOWN_URI)
 407     {
 408         OIC_LOG_V (INFO, TAG, "%s is virtual", request->resourceUrl);
 409         *handling = OC_RESOURCE_VIRTUAL;
 410         *resource = headResource;
 411         return OC_STACK_OK;
 412     }
 413     if (strlen((const char*)(request->resourceUrl)) == 0)
 414     {
 415         // Resource URL not specified
 416         *handling = OC_RESOURCE_NOT_SPECIFIED;
 417         return OC_STACK_NO_RESOURCE;
 418     }
 419     else
 420     {
 421         OCResource *resourcePtr = FindResourceByUri((const char*)request->resourceUrl);
 422         *resource = resourcePtr;
 423         if (!resourcePtr)
 424         {
 425             if(defaultDeviceHandler)
 426             {
 427                 *handling = OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER;
 428                 return OC_STACK_OK;
 429             }
 430
 431             // Resource does not exist
 432             // and default device handler does not exist
 433             *handling = OC_RESOURCE_NOT_SPECIFIED;
 434             return OC_STACK_NO_RESOURCE;
 435         }
 436
 437         if (IsCollectionResource (resourcePtr))
 438         {
 439             // Collection resource
 440             if (resourcePtr->entityHandler != defaultResourceEHandler)
 441             {
 442                 *handling = OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER;
 443                 return OC_STACK_OK;
 444             }
 445             else
 446             {
 447                 *handling = OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER;
 448                 return OC_STACK_OK;
 449             }
 450         }
 451         else
 452         {
 453             // Resource not a collection
 454             if (resourcePtr->entityHandler != defaultResourceEHandler)
 455             {
 456                 *handling = OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER;
 457                 return OC_STACK_OK;
 458             }
 459             else
 460             {
 461                 *handling = OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER;
 462                 return OC_STACK_OK;
 463             }
 464         }
 465     }
 466 }
 467
 468 OCStackResult EntityHandlerCodeToOCStackCode(OCEntityHandlerResult ehResult)
 469 {
 470     OCStackResult result;
 471
 472     switch (ehResult)
 473     {
 474         case OC_EH_OK:
 475         case OC_EH_CONTENT:
 476         case OC_EH_VALID:
 477             result = OC_STACK_OK;
 478             break;
 479         case OC_EH_SLOW:
 480             result = OC_STACK_SLOW_RESOURCE;
 481             break;
 482         case OC_EH_ERROR:
 483             result = OC_STACK_ERROR;
 484             break;
 485         case OC_EH_FORBIDDEN:
 486             result = OC_STACK_FORBIDDEN_REQ;
 487             break;
 488         case OC_EH_INTERNAL_SERVER_ERROR:
 489             result = OC_STACK_INTERNAL_SERVER_ERROR;
 490             break;
 491         case OC_EH_RESOURCE_CREATED:
 492             result = OC_STACK_RESOURCE_CREATED;
 493             break;
 494         case OC_EH_RESOURCE_DELETED:
 495             result = OC_STACK_RESOURCE_DELETED;
 496             break;
 497         case OC_EH_CHANGED:
 498             result = OC_STACK_RESOURCE_CHANGED;
 499             break;
 500         case OC_EH_RESOURCE_NOT_FOUND:
 501             result = OC_STACK_NO_RESOURCE;
 502             break;
 503         default:
 504             result = OC_STACK_ERROR;
 505     }
 506
 507     return result;
 508 }
 509
 510 static bool resourceMatchesRTFilter(OCResource *resource, char *resourceTypeFilter)
 511 {
 512     if (!resource)
 513     {
 514         return false;
 515     }
 516
 517     // Null or empty is analogous to no filter.
 518     if (resourceTypeFilter == NULL || *resourceTypeFilter == 0)
 519     {
 520         return true;
 521     }
 522
 523     OCResourceType *resourceTypePtr = resource->rsrcType;
 524
 525     while (resourceTypePtr)
 526     {
 527         if (strcmp (resourceTypePtr->resourcetypename, resourceTypeFilter) == 0)
 528         {
 529             return true;
 530         }
 531         resourceTypePtr = resourceTypePtr->next;
 532     }
 533
 534     OIC_LOG_V(INFO, TAG, "%s does not contain rt=%s.", resource->uri, resourceTypeFilter);
 535     return false;
 536 }
 537
 538 static bool resourceMatchesIFFilter(OCResource *resource, char *interfaceFilter)
 539 {
 540     if (!resource)
 541     {
 542         return false;
 543     }
 544
 545     // Null or empty is analogous to no filter.
 546     if (interfaceFilter == NULL || *interfaceFilter == 0)
 547     {
 548         return true;
 549     }
 550
 551     OCResourceInterface *interfacePtr = resource->rsrcInterface;
 552
 553     while (interfacePtr)
 554     {
 555         if ((strcmp (interfacePtr->name, interfaceFilter) == 0) &&
 556             (strcmp (OC_RSRVD_INTERFACE_LL, interfaceFilter) == 0 ||
 557              strcmp (OC_RSRVD_INTERFACE_DEFAULT, interfaceFilter) == 0))
 558         {
 559             return true;
 560         }
 561         interfacePtr = interfacePtr->next;
 562     }
 563
 564     OIC_LOG_V(INFO, TAG, "%s does not contain if=%s.", resource->uri, interfaceFilter);
 565     return false;
 566 }
 567
 568 /*
 569  * If the filters are null, they will be assumed to NOT be present
 570  * and the resource will not be matched against them.
 571  * Function will return true if all non null AND non empty filters passed in find a match.
 572  */
 573 static bool includeThisResourceInResponse(OCResource *resource,
 574                                           char *interfaceFilter,
 575                                           char *resourceTypeFilter)
 576 {
 577     if (!resource)
 578     {
 579         OIC_LOG(ERROR, TAG, "Invalid resource");
 580         return false;
 581     }
 582
 583     if (resource->resourceProperties & OC_EXPLICIT_DISCOVERABLE)
 584     {
 585         /*
 586          * At least one valid filter should be available to
 587          * include the resource in discovery response
 588          */
 589         if (!(resourceTypeFilter && *resourceTypeFilter))
 590         {
 591             OIC_LOG_V(INFO, TAG, "%s no query string for EXPLICIT_DISCOVERABLE \
 592                 resource", resource->uri);
 593             return false;
 594         }
 595     }
 596     else if ( !(resource->resourceProperties & OC_ACTIVE) ||
 597          !(resource->resourceProperties & OC_DISCOVERABLE))
 598     {
 599         OIC_LOG_V(INFO, TAG, "%s not ACTIVE or DISCOVERABLE", resource->uri);
 600         return false;
 601     }
 602
 603     return resourceMatchesIFFilter(resource, interfaceFilter) &&
 604            resourceMatchesRTFilter(resource, resourceTypeFilter);
 605
 606 }
 607
 608 OCStackResult SendNonPersistantDiscoveryResponse(OCServerRequest *request, OCResource *resource,
 609                                 OCPayload *discoveryPayload, OCEntityHandlerResult ehResult)
 610 {
 611     OCEntityHandlerResponse response = {0};
 612
 613     response.ehResult = ehResult;
 614     response.payload = discoveryPayload;
 615     response.persistentBufferFlag = 0;
 616     response.requestHandle = (OCRequestHandle) request;
 617     response.resourceHandle = (OCResourceHandle) resource;
 618
 619     return OCDoResponse(&response);
 620 }
 621
 622 static OCStackResult HandleVirtualResource (OCServerRequest *request, OCResource* resource)
 623 {
 624     if (!request || !resource)
 625     {
 626         return OC_STACK_INVALID_PARAM;
 627     }
 628
 629     OCStackResult discoveryResult = OC_STACK_ERROR;
 630     OCPayload* payload = NULL;
 631
 632     OIC_LOG(INFO, TAG, "Entering HandleVirtualResource");
 633
 634     OCVirtualResources virtualUriInRequest = GetTypeOfVirtualURI (request->resourceUrl);
 635
 636     // Step 1: Generate the response to discovery request
 637     if (virtualUriInRequest == OC_WELL_KNOWN_URI
 638 #ifdef MQ_BROKER
 639             || virtualUriInRequest == OC_MQ_BROKER_URI
 640 #endif
 641             )
 642     {
 643         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 644         {
 645             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 646             return OC_STACK_UNAUTHORIZED_REQ;
 647         }
 648
 649         char *interfaceQuery = NULL;
 650         char *resourceTypeQuery = NULL;
 651
 652         discoveryResult = getQueryParamsForFiltering (virtualUriInRequest, request->query,
 653                 &interfaceQuery, &resourceTypeQuery);
 654         bool interfaceQueryAllocated = false;
 655         if (!interfaceQuery && !resourceTypeQuery)
 656         {
 657             interfaceQueryAllocated = true;
 658             interfaceQuery = OICStrdup(OC_RSRVD_INTERFACE_LL);
 659         }
 660
 661         if (discoveryResult == OC_STACK_OK)
 662         {
 663             payload = (OCPayload *)OCDiscoveryPayloadCreate();
 664
 665             if (payload)
 666             {
 667                 OCDiscoveryPayload *discPayload = (OCDiscoveryPayload *)payload;
 668                 bool foundResourceAtRD = false;
 669
 670                 if (!resourceTypeQuery && interfaceQuery && (0 == strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 671                 {
 672                     OCResourceProperty prop = OC_DISCOVERABLE;
 673 #ifdef MQ_BROKER
 674                     if (OC_MQ_BROKER_URI == virtualUriInRequest)
 675                     {
 676                         prop = OC_MQ_BROKER;
 677                     }
 678 #endif
 679
 680                     for (; resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 681                     {
 682                         foundResourceAtRD = false;
 683 #ifdef RD_SERVER
 684                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 685                         {
 686                             if (OC_STACK_OK == OCRDDatabaseCheckResources(interfaceQuery, resourceTypeQuery, discPayload))
 687                             {
 688                                 foundResourceAtRD = true;
 689                                 discoveryResult = OC_STACK_OK;
 690                             }
 691                         }
 692 #endif
 693                         if (!foundResourceAtRD && (resource->resourceProperties & prop))
 694                         {
 695                             discoveryResult = BuildVirtualResourceResponse(resource, discPayload, &request->devAddr);
 696                         }
 697                     }
 698                 }
 699                 else
 700                 {
 701                     if (interfaceQuery && (0 != strcmp(interfaceQuery, OC_RSRVD_INTERFACE_LL)))
 702                     {
 703                         discPayload->uri = OICStrdup(OC_RSRVD_WELL_KNOWN_URI);
 704                         VERIFY_NON_NULL(discPayload->uri, ERROR, OC_STACK_NO_MEMORY);
 705                         if (savedDeviceInfo.deviceName)
 706                         {
 707                             discPayload->name = OICStrdup(savedDeviceInfo.deviceName);
 708                             VERIFY_NON_NULL(discPayload->name, ERROR, OC_STACK_NO_MEMORY);
 709                         }
 710                         discPayload->type = (OCStringLL*)OICCalloc(1, sizeof(OCStringLL));
 711                         VERIFY_NON_NULL(discPayload->type, ERROR, OC_STACK_NO_MEMORY);
 712                         discPayload->type->value = OICStrdup(OC_RSRVD_RESOURCE_TYPE_RES);
 713                         VERIFY_NON_NULL(discPayload->type->value, ERROR, OC_STACK_NO_MEMORY);
 714                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_LL);
 715                         OCResourcePayloadAddStringLL(&discPayload->iface, OC_RSRVD_INTERFACE_DEFAULT);
 716                         VERIFY_NON_NULL(discPayload->iface, ERROR, OC_STACK_NO_MEMORY);
 717                     }
 718                     for (;resource && discoveryResult == OC_STACK_OK; resource = resource->next)
 719                     {
 720 #ifdef RD_SERVER
 721                         if (strcmp(resource->uri, OC_RSRVD_RD_URI) == 0)
 722                         {
 723                             if (OC_STACK_OK == OCRDDatabaseCheckResources(interfaceQuery, resourceTypeQuery, discPayload))
 724                             {
 725                                 foundResourceAtRD = true;
 726                                 discoveryResult = OC_STACK_OK;
 727                             }
 728                         }
 729 #endif
 730                         if (!foundResourceAtRD && includeThisResourceInResponse(resource, interfaceQuery, resourceTypeQuery))
 731                         {
 732                             discoveryResult = BuildVirtualResourceResponse(resource, discPayload, &request->devAddr);
 733                         }
 734                     }
 735                     // Set discoveryResult appropriately if no 'valid' resources are available
 736                     if (discPayload->resources == NULL && !foundResourceAtRD)
 737                     {
 738                         discoveryResult = OC_STACK_NO_RESOURCE;
 739                     }
 740                 }
 741                 if (discoveryResult == OC_STACK_OK && foundResourceAtRD == false)
 742                 {
 743                     discPayload->sid = (char *)OICCalloc(1, UUID_STRING_SIZE);
 744                     VERIFY_NON_NULL(discPayload->sid, ERROR, OC_STACK_NO_MEMORY);
 745
 746                     const char* uid = OCGetServerInstanceIDString();
 747                     if (uid)
 748                     {
 749                         memcpy(discPayload->sid, uid, UUID_STRING_SIZE);
 750                     }
 751                 }
 752             }
 753             else
 754             {
 755                 discoveryResult = OC_STACK_NO_MEMORY;
 756             }
 757
 758         }
 759         else
 760         {
 761             OIC_LOG_V(ERROR, TAG, "Error (%d) parsing query.", discoveryResult);
 762         }
 763         if (interfaceQueryAllocated)
 764         {
 765             OICFree(interfaceQuery);
 766         }
 767     }
 768     else if (virtualUriInRequest == OC_DEVICE_URI)
 769     {
 770         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 771         {
 772             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 773             return OC_STACK_UNAUTHORIZED_REQ;
 774         }
 775
 776         const char* deviceId = OCGetServerInstanceIDString();
 777         if (!deviceId)
 778         {
 779             discoveryResult = OC_STACK_ERROR;
 780         }
 781         else
 782         {
 783             char *dataModelVersions = OCCreateString(savedDeviceInfo.dataModelVersions);
 784             if (!dataModelVersions)
 785             {
 786                 discoveryResult = OC_STACK_NO_MEMORY;
 787             }
 788             else
 789             {
 790                 payload = (OCPayload*) OCDevicePayloadCreate(deviceId, savedDeviceInfo.deviceName,
 791                     savedDeviceInfo.types, savedDeviceInfo.specVersion, dataModelVersions);
 792                 if (!payload)
 793                 {
 794                      discoveryResult = OC_STACK_NO_MEMORY;
 795                 }
 796                 else
 797                 {
 798                      discoveryResult = OC_STACK_OK;
 799                 }
 800                 OICFree(dataModelVersions);
 801             }
 802         }
 803     }
 804     else if (virtualUriInRequest == OC_PLATFORM_URI)
 805     {
 806         if (request->method == OC_REST_PUT || request->method == OC_REST_POST || request->method == OC_REST_DELETE)
 807         {
 808             OIC_LOG_V(ERROR, TAG, "Resource : %s not permitted for method: %d", request->resourceUrl, request->method);
 809             return OC_STACK_UNAUTHORIZED_REQ;
 810         }
 811
 812         payload = (OCPayload*)OCPlatformPayloadCreate(&savedPlatformInfo);
 813         if (!payload)
 814         {
 815             discoveryResult = OC_STACK_NO_MEMORY;
 816         }
 817         else
 818         {
 819             discoveryResult = OC_STACK_OK;
 820         }
 821     }
 822 #ifdef ROUTING_GATEWAY
 823     else if (OC_GATEWAY_URI == virtualUriInRequest)
 824     {
 825         // Received request for a gateway
 826         OIC_LOG(INFO, TAG, "Request is for Gateway Virtual Request");
 827         discoveryResult = RMHandleGatewayRequest(request, resource);
 828
 829     }
 830 #endif
 831
 832     /**
 833      * Step 2: Send the discovery response
 834      *
 835      * Iotivity should respond to discovery requests in below manner:
 836      * 1)If query filter matching fails and discovery request is multicast,
 837      *   it should NOT send any response.
 838      * 2)If query filter matching fails and discovery request is unicast,
 839      *   it should send an error(RESOURCE_NOT_FOUND - 404) response.
 840      * 3)If Server does not have any 'DISCOVERABLE' resources and discovery
 841      *   request is multicast, it should NOT send any response.
 842      * 4)If Server does not have any 'DISCOVERABLE' resources and discovery
 843      *   request is unicast, it should send an error(RESOURCE_NOT_FOUND - 404) response.
 844      */
 845
 846 #ifdef WITH_PRESENCE
 847     if ((virtualUriInRequest == OC_PRESENCE) &&
 848         (resource->resourceProperties & OC_ACTIVE))
 849     {
 850         // Need to send ACK when the request is CON.
 851         if (request->qos == OC_HIGH_QOS)
 852         {
 853             CAEndpoint_t endpoint = { .adapter = CA_DEFAULT_ADAPTER };
 854             CopyDevAddrToEndpoint(&request->devAddr, &endpoint);
 855             SendDirectStackResponse(&endpoint, request->coapID, CA_EMPTY, CA_MSG_ACKNOWLEDGE,
 856                                     0, NULL, NULL, 0, NULL, CA_RESPONSE_FOR_RES);
 857         }
 858         FindAndDeleteServerRequest(request);
 859
 860         // Presence uses observer notification api to respond via SendPresenceNotification.
 861         SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
 862     }
 863     else
 864     #endif
 865 #ifdef ROUTING_GATEWAY
 866     // Gateway uses the RMHandleGatewayRequest to respond to the request.
 867     if (OC_GATEWAY_URI != virtualUriInRequest)
 868 #endif
 869     {
 870         if(discoveryResult == OC_STACK_OK)
 871         {
 872             SendNonPersistantDiscoveryResponse(request, resource, payload, OC_EH_OK);
 873         }
 874         else if(((request->devAddr.flags &  OC_MULTICAST) == false) &&
 875             (request->devAddr.adapter != OC_ADAPTER_RFCOMM_BTEDR) &&
 876             (request->devAddr.adapter != OC_ADAPTER_GATT_BTLE))
 877         {
 878             OIC_LOG_V(ERROR, TAG, "Sending a (%d) error to (%d) discovery request",
 879                 discoveryResult, virtualUriInRequest);
 880             SendNonPersistantDiscoveryResponse(request, resource, NULL,
 881                 (discoveryResult == OC_STACK_NO_RESOURCE) ? OC_EH_RESOURCE_NOT_FOUND : OC_EH_ERROR);
 882         }
 883         else
 884         {
 885             // Ignoring the discovery request as per RFC 7252, Section #8.2
 886             OIC_LOG(INFO, TAG, "Silently ignoring the request since no useful data to send. ");
 887             // the request should be removed. since it never remove and causes a big memory waste.
 888             FindAndDeleteServerRequest(request);
 889         }
 890     }
 891
 892     OCPayloadDestroy(payload);
 893
 894     return OC_STACK_OK;
 895 }
 896
 897 static OCStackResult
 898 HandleDefaultDeviceEntityHandler (OCServerRequest *request)
 899 {
 900     if(!request)
 901     {
 902         return OC_STACK_INVALID_PARAM;
 903     }
 904
 905     OCStackResult result = OC_STACK_OK;
 906     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 907     OCEntityHandlerRequest ehRequest = {0};
 908
 909     OIC_LOG(INFO, TAG, "Entering HandleResourceWithDefaultDeviceEntityHandler");
 910     result = FormOCEntityHandlerRequest(&ehRequest,
 911                                         (OCRequestHandle) request,
 912                                         request->method,
 913                                         &request->devAddr,
 914                                         (OCResourceHandle) NULL, request->query,
 915                                         PAYLOAD_TYPE_REPRESENTATION,
 916                                         request->payload,
 917                                         request->payloadSize,
 918                                         request->numRcvdVendorSpecificHeaderOptions,
 919                                         request->rcvdVendorSpecificHeaderOptions,
 920                                         (OCObserveAction)request->observationOption,
 921                                         (OCObservationId)0,
 922                                         request->coapID);
 923     VERIFY_SUCCESS(result, OC_STACK_OK);
 924
 925     // At this point we know for sure that defaultDeviceHandler exists
 926     ehResult = defaultDeviceHandler(OC_REQUEST_FLAG, &ehRequest,
 927                                   (char*) request->resourceUrl, defaultDeviceHandlerCallbackParameter);
 928     if(ehResult == OC_EH_SLOW)
 929     {
 930         OIC_LOG(INFO, TAG, "This is a slow resource");
 931         request->slowFlag = 1;
 932     }
 933     else if(ehResult == OC_EH_ERROR)
 934     {
 935         FindAndDeleteServerRequest(request);
 936     }
 937     result = EntityHandlerCodeToOCStackCode(ehResult);
 938 exit:
 939     OCPayloadDestroy(ehRequest.payload);
 940     return result;
 941 }
 942
 943 static OCStackResult
 944 HandleResourceWithEntityHandler (OCServerRequest *request,
 945                                  OCResource *resource,
 946                                  uint8_t collectionResource)
 947 {
 948     if(!request || ! resource)
 949     {
 950         return OC_STACK_INVALID_PARAM;
 951     }
 952
 953     OCStackResult result = OC_STACK_ERROR;
 954     OCEntityHandlerResult ehResult = OC_EH_ERROR;
 955     OCEntityHandlerFlag ehFlag = OC_REQUEST_FLAG;
 956     ResourceObserver *resObs = NULL;
 957
 958     OCEntityHandlerRequest ehRequest = {0};
 959
 960     OIC_LOG(INFO, TAG, "Entering HandleResourceWithEntityHandler");
 961     OCPayloadType type = PAYLOAD_TYPE_REPRESENTATION;
 962     // check the security resource
 963     if (request && request->resourceUrl && SRMIsSecurityResourceURI(request->resourceUrl))
 964     {
 965         type = PAYLOAD_TYPE_SECURITY;
 966
 967     }
 968
 969     result = FormOCEntityHandlerRequest(&ehRequest,
 970                                         (OCRequestHandle)request,
 971                                         request->method,
 972                                         &request->devAddr,
 973                                         (OCResourceHandle)resource,
 974                                         request->query,
 975                                         type,
 976                                         request->payload,
 977                                         request->payloadSize,
 978                                         request->numRcvdVendorSpecificHeaderOptions,
 979                                         request->rcvdVendorSpecificHeaderOptions,
 980                                         (OCObserveAction)request->observationOption,
 981                                         0,
 982                                         request->coapID);
 983     VERIFY_SUCCESS(result, OC_STACK_OK);
 984
 985     if(ehRequest.obsInfo.action == OC_OBSERVE_NO_OPTION)
 986     {
 987         OIC_LOG(INFO, TAG, "No observation requested");
 988         ehFlag = OC_REQUEST_FLAG;
 989     }
 990     else if(ehRequest.obsInfo.action == OC_OBSERVE_REGISTER)
 991     {
 992         OIC_LOG(INFO, TAG, "Observation registration requested");
 993
 994         ResourceObserver *obs = GetObserverUsingToken (request->requestToken,
 995                                     request->tokenLength);
 996
 997         if (obs)
 998         {
 999             OIC_LOG (INFO, TAG, "Observer with this token already present");
1000             OIC_LOG (INFO, TAG, "Possibly re-transmitted CON OBS request");
1001             OIC_LOG (INFO, TAG, "Not adding observer. Not responding to client");
1002             OIC_LOG (INFO, TAG, "The first request for this token is already ACKED.");
1003
1004             // server requests are usually free'd when the response is sent out
1005             // for the request in ocserverrequest.c : HandleSingleResponse()
1006             // Since we are making an early return and not responding, the server request
1007             // needs to be deleted.
1008             FindAndDeleteServerRequest (request);
1009             return OC_STACK_OK;
1010         }
1011
1012         result = GenerateObserverId(&ehRequest.obsInfo.obsId);
1013         VERIFY_SUCCESS(result, OC_STACK_OK);
1014
1015         result = AddObserver ((const char*)(request->resourceUrl),
1016                 (const char *)(request->query),
1017                 ehRequest.obsInfo.obsId, request->requestToken, request->tokenLength,
1018                 resource, request->qos, request->acceptFormat,
1019                 &request->devAddr);
1020
1021         if(result == OC_STACK_OK)
1022         {
1023             OIC_LOG(INFO, TAG, "Added observer successfully");
1024             request->observeResult = OC_STACK_OK;
1025             ehFlag = (OCEntityHandlerFlag)(OC_REQUEST_FLAG | OC_OBSERVE_FLAG);
1026         }
1027         else if (result == OC_STACK_RESOURCE_ERROR)
1028         {
1029             OIC_LOG(INFO, TAG, "The Resource is not active, discoverable or observable");
1030             request->observeResult = OC_STACK_ERROR;
1031             ehFlag = OC_REQUEST_FLAG;
1032         }
1033         else
1034         {
1035             // The error in observeResult for the request will be used when responding to this
1036             // request by omitting the observation option/sequence number.
1037             request->observeResult = OC_STACK_ERROR;
1038             OIC_LOG(ERROR, TAG, "Observer Addition failed");
1039             ehFlag = OC_REQUEST_FLAG;
1040             FindAndDeleteServerRequest(request);
1041             goto exit;
1042         }
1043
1044     }
1045     else if(ehRequest.obsInfo.action == OC_OBSERVE_DEREGISTER)
1046     {
1047         OIC_LOG(INFO, TAG, "Deregistering observation requested");
1048
1049         resObs = GetObserverUsingToken (request->requestToken, request->tokenLength);
1050
1051         if (NULL == resObs)
1052         {
1053             // Stack does not contain this observation request
1054             // Either token is incorrect or observation list is corrupted
1055             result = OC_STACK_ERROR;
1056             goto exit;
1057         }
1058         ehRequest.obsInfo.obsId = resObs->observeId;
1059         ehFlag = (OCEntityHandlerFlag)(ehFlag | OC_OBSERVE_FLAG);
1060
1061         result = DeleteObserverUsingToken (request->requestToken, request->tokenLength);
1062
1063         if(result == OC_STACK_OK)
1064         {
1065             OIC_LOG(INFO, TAG, "Removed observer successfully");
1066             request->observeResult = OC_STACK_OK;
1067             // There should be no observe option header for de-registration response.
1068             // Set as an invalid value here so we can detect it later and remove the field in response.
1069             request->observationOption = MAX_SEQUENCE_NUMBER + 1;
1070         }
1071         else
1072         {
1073             request->observeResult = OC_STACK_ERROR;
1074             OIC_LOG(ERROR, TAG, "Observer Removal failed");
1075             FindAndDeleteServerRequest(request);
1076             goto exit;
1077         }
1078     }
1079     else
1080     {
1081         result = OC_STACK_ERROR;
1082         goto exit;
1083     }
1084
1085     ehResult = resource->entityHandler(ehFlag, &ehRequest, resource->entityHandlerCallbackParam);
1086     if(ehResult == OC_EH_SLOW)
1087     {
1088         OIC_LOG(INFO, TAG, "This is a slow resource");
1089         request->slowFlag = 1;
1090     }
1091     else if(ehResult == OC_EH_ERROR)
1092     {
1093         FindAndDeleteServerRequest(request);
1094     }
1095     result = EntityHandlerCodeToOCStackCode(ehResult);
1096 exit:
1097     OCPayloadDestroy(ehRequest.payload);
1098     return result;
1099 }
1100
1101 static OCStackResult
1102 HandleCollectionResourceDefaultEntityHandler (OCServerRequest *request,
1103                                               OCResource *resource)
1104 {
1105     if(!request || !resource)
1106     {
1107         return OC_STACK_INVALID_PARAM;
1108     }
1109
1110     OCStackResult result = OC_STACK_ERROR;
1111     OCEntityHandlerRequest ehRequest = {0};
1112
1113     result = FormOCEntityHandlerRequest(&ehRequest,
1114                                         (OCRequestHandle)request,
1115                                         request->method,
1116                                         &request->devAddr,
1117                                         (OCResourceHandle)resource,
1118                                         request->query,
1119                                         PAYLOAD_TYPE_REPRESENTATION,
1120                                         request->payload,
1121                                         request->payloadSize,
1122                                         request->numRcvdVendorSpecificHeaderOptions,
1123                                         request->rcvdVendorSpecificHeaderOptions,
1124                                         (OCObserveAction)request->observationOption,
1125                                         (OCObservationId)0,
1126                                         request->coapID);
1127     if(result == OC_STACK_OK)
1128     {
1129         result = DefaultCollectionEntityHandler (OC_REQUEST_FLAG, &ehRequest);
1130     }
1131
1132     OCPayloadDestroy(ehRequest.payload);
1133     return result;
1134 }
1135
1136 OCStackResult
1137 ProcessRequest(ResourceHandling resHandling, OCResource *resource, OCServerRequest *request)
1138 {
1139     OCStackResult ret = OC_STACK_OK;
1140
1141     switch (resHandling)
1142     {
1143         case OC_RESOURCE_VIRTUAL:
1144         {
1145             ret = HandleVirtualResource (request, resource);
1146             break;
1147         }
1148         case OC_RESOURCE_DEFAULT_DEVICE_ENTITYHANDLER:
1149         {
1150             ret = HandleDefaultDeviceEntityHandler(request);
1151             break;
1152         }
1153         case OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER:
1154         {
1155             OIC_LOG(INFO, TAG, "OC_RESOURCE_NOT_COLLECTION_DEFAULT_ENTITYHANDLER");
1156             return OC_STACK_ERROR;
1157         }
1158         case OC_RESOURCE_NOT_COLLECTION_WITH_ENTITYHANDLER:
1159         {
1160             ret = HandleResourceWithEntityHandler (request, resource, 0);
1161             break;
1162         }
1163         case OC_RESOURCE_COLLECTION_WITH_ENTITYHANDLER:
1164         {
1165             ret = HandleResourceWithEntityHandler (request, resource, 1);
1166             break;
1167         }
1168         case OC_RESOURCE_COLLECTION_DEFAULT_ENTITYHANDLER:
1169         {
1170             ret = HandleCollectionResourceDefaultEntityHandler (request, resource);
1171             break;
1172         }
1173         case OC_RESOURCE_NOT_SPECIFIED:
1174         {
1175             ret = OC_STACK_NO_RESOURCE;
1176             break;
1177         }
1178         default:
1179         {
1180             OIC_LOG(INFO, TAG, "Invalid Resource Determination");
1181             return OC_STACK_ERROR;
1182         }
1183     }
1184     return ret;
1185 }
1186
1187 void DeletePlatformInfo()
1188 {
1189     OIC_LOG(INFO, TAG, "Deleting platform info.");
1190
1191     OICFree(savedPlatformInfo.platformID);
1192     savedPlatformInfo.platformID = NULL;
1193
1194     OICFree(savedPlatformInfo.manufacturerName);
1195     savedPlatformInfo.manufacturerName = NULL;
1196
1197     OICFree(savedPlatformInfo.manufacturerUrl);
1198     savedPlatformInfo.manufacturerUrl = NULL;
1199
1200     OICFree(savedPlatformInfo.modelNumber);
1201     savedPlatformInfo.modelNumber = NULL;
1202
1203     OICFree(savedPlatformInfo.dateOfManufacture);
1204     savedPlatformInfo.dateOfManufacture = NULL;
1205
1206     OICFree(savedPlatformInfo.platformVersion);
1207     savedPlatformInfo.platformVersion = NULL;
1208
1209     OICFree(savedPlatformInfo.operatingSystemVersion);
1210     savedPlatformInfo.operatingSystemVersion = NULL;
1211
1212     OICFree(savedPlatformInfo.hardwareVersion);
1213     savedPlatformInfo.hardwareVersion = NULL;
1214
1215     OICFree(savedPlatformInfo.firmwareVersion);
1216     savedPlatformInfo.firmwareVersion = NULL;
1217
1218     OICFree(savedPlatformInfo.supportUrl);
1219     savedPlatformInfo.supportUrl = NULL;
1220
1221     OICFree(savedPlatformInfo.systemTime);
1222     savedPlatformInfo.systemTime = NULL;
1223 }
1224
1225 static OCStackResult DeepCopyPlatFormInfo(OCPlatformInfo info)
1226 {
1227     savedPlatformInfo.platformID = OICStrdup(info.platformID);
1228     savedPlatformInfo.manufacturerName = OICStrdup(info.manufacturerName);
1229     savedPlatformInfo.manufacturerUrl = OICStrdup(info.manufacturerUrl);
1230     savedPlatformInfo.modelNumber = OICStrdup(info.modelNumber);
1231     savedPlatformInfo.dateOfManufacture = OICStrdup(info.dateOfManufacture);
1232     savedPlatformInfo.platformVersion = OICStrdup(info.platformVersion);
1233     savedPlatformInfo.operatingSystemVersion = OICStrdup(info.operatingSystemVersion);
1234     savedPlatformInfo.hardwareVersion = OICStrdup(info.hardwareVersion);
1235     savedPlatformInfo.firmwareVersion = OICStrdup(info.firmwareVersion);
1236     savedPlatformInfo.supportUrl = OICStrdup(info.supportUrl);
1237     savedPlatformInfo.systemTime = OICStrdup(info.systemTime);
1238
1239     if ((!savedPlatformInfo.platformID && info.platformID)||
1240         (!savedPlatformInfo.manufacturerName && info.manufacturerName)||
1241         (!savedPlatformInfo.manufacturerUrl && info.manufacturerUrl)||
1242         (!savedPlatformInfo.modelNumber && info.modelNumber)||
1243         (!savedPlatformInfo.dateOfManufacture && info.dateOfManufacture)||
1244         (!savedPlatformInfo.platformVersion && info.platformVersion)||
1245         (!savedPlatformInfo.operatingSystemVersion && info.operatingSystemVersion)||
1246         (!savedPlatformInfo.hardwareVersion && info.hardwareVersion)||
1247         (!savedPlatformInfo.firmwareVersion && info.firmwareVersion)||
1248         (!savedPlatformInfo.supportUrl && info.supportUrl)||
1249         (!savedPlatformInfo.systemTime && info.systemTime))
1250     {
1251         DeletePlatformInfo();
1252         return OC_STACK_INVALID_PARAM;
1253     }
1254
1255     return OC_STACK_OK;
1256
1257 }
1258
1259 OCStackResult SavePlatformInfo(OCPlatformInfo info)
1260 {
1261     DeletePlatformInfo();
1262
1263     OCStackResult res = DeepCopyPlatFormInfo(info);
1264
1265     if (res != OC_STACK_OK)
1266     {
1267         OIC_LOG_V(ERROR, TAG, "Failed to save platform info. errno(%d)", res);
1268     }
1269     else
1270     {
1271         OIC_LOG(INFO, TAG, "Platform info saved.");
1272     }
1273
1274     return res;
1275 }
1276
1277 void DeleteDeviceInfo()
1278 {
1279     OIC_LOG(INFO, TAG, "Deleting device info.");
1280
1281     OICFree(savedDeviceInfo.deviceName);
1282     OCFreeOCStringLL(savedDeviceInfo.types);
1283     OICFree(savedDeviceInfo.specVersion);
1284     OCFreeOCStringLL(savedDeviceInfo.dataModelVersions);
1285     savedDeviceInfo.deviceName = NULL;
1286     savedDeviceInfo.specVersion = NULL;
1287     savedDeviceInfo.dataModelVersions = NULL;
1288 }
1289
1290 static OCStackResult DeepCopyDeviceInfo(OCDeviceInfo info)
1291 {
1292     savedDeviceInfo.deviceName = OICStrdup(info.deviceName);
1293
1294     if(!savedDeviceInfo.deviceName && info.deviceName)
1295     {
1296         DeleteDeviceInfo();
1297         return OC_STACK_NO_MEMORY;
1298     }
1299
1300     if (info.types)
1301     {
1302         savedDeviceInfo.types = CloneOCStringLL(info.types);
1303         OCStringLL *type = info.types;
1304         bool found = false;
1305         while (type)
1306         {
1307             if (type && type->value && 0 == strcmp(type->value, OC_RSRVD_RESOURCE_TYPE_DEVICE))
1308             {
1309                 found = true;
1310             }
1311             type = type->next;
1312         }
1313         if (!found)
1314         {
1315             // Append the oic.wk.d at the start of rt link parameter value.
1316             OCStringLL *dest = (OCStringLL*)OICCalloc (1, sizeof (OCStringLL));
1317             if (!dest)
1318             {
1319                 DeleteDeviceInfo();
1320                 return OC_STACK_NO_MEMORY;
1321             }
1322             dest->value = OICStrdup (OC_RSRVD_RESOURCE_TYPE_DEVICE);
1323             if (!dest->value)
1324             {
1325                 DeleteDeviceInfo();
1326                 return OC_STACK_NO_MEMORY;
1327             }
1328             dest->next = savedDeviceInfo.types;
1329             savedDeviceInfo.types = dest;
1330         }
1331         if(!savedDeviceInfo.types && info.types)
1332         {
1333             DeleteDeviceInfo();
1334             return OC_STACK_NO_MEMORY;
1335         }
1336     }
1337
1338     if (info.specVersion)
1339     {
1340         savedDeviceInfo.specVersion = OICStrdup(info.specVersion);
1341         if(!savedDeviceInfo.specVersion && info.specVersion)
1342         {
1343             DeleteDeviceInfo();
1344             return OC_STACK_NO_MEMORY;
1345         }
1346     }
1347     else
1348     {
1349         savedDeviceInfo.specVersion = OICStrdup(OC_SPEC_VERSION);
1350         if(!savedDeviceInfo.specVersion && OC_SPEC_VERSION)
1351         {
1352             DeleteDeviceInfo();
1353             return OC_STACK_NO_MEMORY;
1354         }
1355     }
1356
1357     if (info.dataModelVersions)
1358     {
1359         savedDeviceInfo.dataModelVersions = CloneOCStringLL(info.dataModelVersions);
1360         if(!savedDeviceInfo.dataModelVersions && info.dataModelVersions)
1361         {
1362             DeleteDeviceInfo();
1363             return OC_STACK_NO_MEMORY;
1364         }
1365     }
1366     else
1367     {
1368         savedDeviceInfo.dataModelVersions = (OCStringLL *)OICCalloc(1,sizeof(OCStringLL));
1369         if (!savedDeviceInfo.dataModelVersions)
1370         {
1371             return OC_STACK_NO_MEMORY;
1372         }
1373         savedDeviceInfo.dataModelVersions->value = OICStrdup(OC_DATA_MODEL_VERSION);
1374         if(!savedDeviceInfo.dataModelVersions->value && OC_DATA_MODEL_VERSION)
1375         {
1376             DeleteDeviceInfo();
1377             return OC_STACK_NO_MEMORY;
1378         }
1379     }
1380
1381     return OC_STACK_OK;
1382 }
1383
1384 OCStackResult SaveDeviceInfo(OCDeviceInfo info)
1385 {
1386     OCStackResult res = OC_STACK_OK;
1387
1388     DeleteDeviceInfo();
1389
1390     res = DeepCopyDeviceInfo(info);
1391
1392     VERIFY_SUCCESS(res, OC_STACK_OK);
1393
1394     if (OCGetServerInstanceIDString() == NULL)
1395     {
1396         OIC_LOG(INFO, TAG, "Device ID generation failed");
1397         res =  OC_STACK_ERROR;
1398         goto exit;
1399     }
1400
1401     OIC_LOG(INFO, TAG, "Device initialized successfully.");
1402     return OC_STACK_OK;
1403
1404 exit:
1405     DeleteDeviceInfo();
1406     return res;
1407 }