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