1 //******************************************************************
3 // Copyright 2014 Intel Mobile Communications GmbH All Rights Reserved.
5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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
11 // http://www.apache.org/licenses/LICENSE-2.0
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.
19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
22 //-----------------------------------------------------------------------------
24 //-----------------------------------------------------------------------------
26 // Defining _POSIX_C_SOURCE macro with 200112L (or greater) as value
27 // causes header files to expose definitions
28 // corresponding to the POSIX.1-2001 base
29 // specification (excluding the XSI extension).
30 // For POSIX.1-2001 base specification,
31 // Refer http://pubs.opengroup.org/onlinepubs/009695399/
32 #define _POSIX_C_SOURCE 200112L
37 #include "ocstackinternal.h"
38 #include "ocresourcehandler.h"
39 #include "occlientcb.h"
40 #include "ocobserve.h"
42 #include "oic_malloc.h"
43 #include "oic_string.h"
45 #include "ocserverrequest.h"
46 #include "secureresourcemanager.h"
47 #include "doxmresource.h"
49 #include "cainterface.h"
50 #include "ocpayload.h"
51 #include "ocpayloadcbor.h"
53 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
54 #include "routingutility.h"
55 #ifdef ROUTING_GATEWAY
56 #include "routingmanager.h"
65 #include "coap_time.h"
70 #include <arpa/inet.h>
74 #define UINT32_MAX (0xFFFFFFFFUL)
77 //-----------------------------------------------------------------------------
79 //-----------------------------------------------------------------------------
82 OC_STACK_UNINITIALIZED = 0,
84 OC_STACK_UNINIT_IN_PROGRESS
90 OC_PRESENCE_UNINITIALIZED = 0,
91 OC_PRESENCE_INITIALIZED
95 //-----------------------------------------------------------------------------
97 //-----------------------------------------------------------------------------
98 static OCStackState stackState = OC_STACK_UNINITIALIZED;
100 OCResource *headResource = NULL;
101 static OCResource *tailResource = NULL;
103 static OCPresenceState presenceState = OC_PRESENCE_UNINITIALIZED;
104 static PresenceResource presenceResource;
105 static uint8_t PresenceTimeOutSize = 0;
106 static uint32_t PresenceTimeOut[] = {50, 75, 85, 95, 100};
109 static OCMode myStackMode;
111 //TODO: revisit this design
112 static bool gRASetInfo = false;
114 OCDeviceEntityHandler defaultDeviceHandler;
115 void* defaultDeviceHandlerCallbackParameter = NULL;
118 static const char COAP_TCP[] = "coap+tcp:";
121 //-----------------------------------------------------------------------------
123 //-----------------------------------------------------------------------------
124 #define TAG "OCStack"
125 #define VERIFY_SUCCESS(op, successCode) { if ((op) != (successCode)) \
126 {OC_LOG_V(FATAL, TAG, "%s failed!!", #op); goto exit;} }
127 #define VERIFY_NON_NULL(arg, logLevel, retVal) { if (!(arg)) { OC_LOG((logLevel), \
128 TAG, #arg " is NULL"); return (retVal); } }
129 #define VERIFY_NON_NULL_NR(arg, logLevel) { if (!(arg)) { OC_LOG((logLevel), \
130 TAG, #arg " is NULL"); return; } }
131 #define VERIFY_NON_NULL_V(arg) { if (!arg) {OC_LOG_V(FATAL, TAG, "%s is NULL", #arg);\
134 //TODO: we should allow the server to define this
135 #define MAX_OBSERVE_AGE (0x2FFFFUL)
137 #define MILLISECONDS_PER_SECOND (1000)
139 //-----------------------------------------------------------------------------
140 // Private internal function prototypes
141 //-----------------------------------------------------------------------------
144 * Generate handle of OCDoResource invocation for callback management.
146 * @return Generated OCDoResource handle.
148 static OCDoHandle GenerateInvocationHandle();
151 * Initialize resource data structures, variables, etc.
153 * @return ::OC_STACK_OK on success, some other value upon failure.
155 static OCStackResult initResources();
158 * Add a resource to the end of the linked list of resources.
160 * @param resource Resource to be added
162 static void insertResource(OCResource *resource);
165 * Find a resource in the linked list of resources.
167 * @param resource Resource to be found.
168 * @return Pointer to resource that was found in the linked list or NULL if the resource was not
171 static OCResource *findResource(OCResource *resource);
174 * Insert a resource type into a resource's resource type linked list.
175 * If resource type already exists, it will not be inserted and the
176 * resourceType will be free'd.
177 * resourceType->next should be null to avoid memory leaks.
178 * Function returns silently for null args.
180 * @param resource Resource where resource type is to be inserted.
181 * @param resourceType Resource type to be inserted.
183 static void insertResourceType(OCResource *resource,
184 OCResourceType *resourceType);
187 * Get a resource type at the specified index within a resource.
189 * @param handle Handle of resource.
190 * @param index Index of resource type.
192 * @return Pointer to resource type if found, NULL otherwise.
194 static OCResourceType *findResourceTypeAtIndex(OCResourceHandle handle,
198 * Insert a resource interface into a resource's resource interface linked list.
199 * If resource interface already exists, it will not be inserted and the
200 * resourceInterface will be free'd.
201 * resourceInterface->next should be null to avoid memory leaks.
203 * @param resource Resource where resource interface is to be inserted.
204 * @param resourceInterface Resource interface to be inserted.
206 static void insertResourceInterface(OCResource *resource,
207 OCResourceInterface *resourceInterface);
210 * Get a resource interface at the specified index within a resource.
212 * @param handle Handle of resource.
213 * @param index Index of resource interface.
215 * @return Pointer to resource interface if found, NULL otherwise.
217 static OCResourceInterface *findResourceInterfaceAtIndex(
218 OCResourceHandle handle, uint8_t index);
221 * Delete all of the dynamically allocated elements that were created for the resource type.
223 * @param resourceType Specified resource type.
225 static void deleteResourceType(OCResourceType *resourceType);
228 * Delete all of the dynamically allocated elements that were created for the resource interface.
230 * @param resourceInterface Specified resource interface.
232 static void deleteResourceInterface(OCResourceInterface *resourceInterface);
235 * Delete all of the dynamically allocated elements that were created for the resource.
237 * @param resource Specified resource.
239 static void deleteResourceElements(OCResource *resource);
242 * Delete resource specified by handle. Deletes resource and all resourcetype and resourceinterface
245 * @param handle Handle of resource to be deleted.
247 * @return ::OC_STACK_OK on success, some other value upon failure.
249 static OCStackResult deleteResource(OCResource *resource);
252 * Delete all of the resources in the resource list.
254 static void deleteAllResources();
257 * Increment resource sequence number. Handles rollover.
259 * @param resPtr Pointer to resource.
261 static void incrementSequenceNumber(OCResource * resPtr);
264 * Verify the lengths of the URI and the query separately.
266 * @param inputUri Input URI and query.
267 * @param uriLen The length of the initial URI with query.
268 * @return ::OC_STACK_OK on success, some other value upon failure.
270 static OCStackResult verifyUriQueryLength(const char * inputUri,
274 * Attempts to initialize every network interface that the CA Layer might have compiled in.
276 * Note: At least one interface must succeed to initialize. If all calls to @ref CASelectNetwork
277 * return something other than @ref CA_STATUS_OK, then this function fails.
279 * @return ::CA_STATUS_OK on success, some other value upon failure.
281 static CAResult_t OCSelectNetwork();
284 * Get the CoAP ticks after the specified number of milli-seconds.
286 * @param afterMilliSeconds Milli-seconds.
290 static uint32_t GetTicks(uint32_t afterMilliSeconds);
293 * Convert CAResponseResult_t to OCStackResult.
295 * @param caCode CAResponseResult_t code.
296 * @return ::OC_STACK_OK on success, some other value upon failure.
298 static OCStackResult CAToOCStackResult(CAResponseResult_t caCode);
301 * Convert OCStackResult to CAResponseResult_t.
303 * @param caCode OCStackResult code.
304 * @param method OCMethod method the return code replies to.
305 * @return ::CA_CONTENT on OK, some other value upon failure.
307 static CAResponseResult_t OCToCAStackResult(OCStackResult ocCode, OCMethod method);
310 * Convert OCTransportFlags_t to CATransportModifiers_t.
312 * @param ocConType OCTransportFlags_t input.
313 * @return CATransportFlags
315 static CATransportFlags_t OCToCATransportFlags(OCTransportFlags ocConType);
318 * Convert CATransportFlags_t to OCTransportModifiers_t.
320 * @param caConType CATransportFlags_t input.
321 * @return OCTransportFlags
323 static OCTransportFlags CAToOCTransportFlags(CATransportFlags_t caConType);
326 * Handle response from presence request.
328 * @param endPoint CA remote endpoint.
329 * @param responseInfo CA response info.
330 * @return ::OC_STACK_OK on success, some other value upon failure.
332 static OCStackResult HandlePresenceResponse(const CAEndpoint_t *endPoint,
333 const CAResponseInfo_t *responseInfo);
336 * This function will be called back by CA layer when a response is received.
338 * @param endPoint CA remote endpoint.
339 * @param responseInfo CA response info.
341 static void HandleCAResponses(const CAEndpoint_t* endPoint,
342 const CAResponseInfo_t* responseInfo);
345 * This function will be called back by CA layer when a request is received.
347 * @param endPoint CA remote endpoint.
348 * @param requestInfo CA request info.
350 static void HandleCARequests(const CAEndpoint_t* endPoint,
351 const CARequestInfo_t* requestInfo);
354 * Extract query from a URI.
356 * @param uri Full URI with query.
357 * @param query Pointer to string that will contain query.
358 * @param newURI Pointer to string that will contain URI.
359 * @return ::OC_STACK_OK on success, some other value upon failure.
361 static OCStackResult getQueryFromUri(const char * uri, char** resourceType, char ** newURI);
364 * Finds a resource type in an OCResourceType link-list.
366 * @param resourceTypeList The link-list to be searched through.
367 * @param resourceTypeName The key to search for.
369 * @return Resource type that matches the key (ie. resourceTypeName) or
370 * NULL if there is either an invalid parameter or this function was unable to find the key.
372 static OCResourceType *findResourceType(OCResourceType * resourceTypeList,
373 const char * resourceTypeName);
376 * Reset presence TTL for a ClientCB struct. ttlLevel will be set to 0.
377 * TTL will be set to maxAge.
379 * @param cbNode Callback Node for which presence ttl is to be reset.
380 * @param maxAge New value of ttl in seconds.
382 * @return ::OC_STACK_OK on success, some other value upon failure.
384 static OCStackResult ResetPresenceTTL(ClientCB *cbNode, uint32_t maxAgeSeconds);
387 * Ensure the accept header option is set appropriatly before sending the requests and routing
388 * header option is updated with destination.
390 * @param object CA remote endpoint.
391 * @param requestInfo CA request info.
393 * @return ::OC_STACK_OK on success, some other value upon failure.
395 static OCStackResult OCSendRequest(const CAEndpoint_t *object, CARequestInfo_t *requestInfo);
397 //-----------------------------------------------------------------------------
398 // Internal functions
399 //-----------------------------------------------------------------------------
401 uint32_t GetTicks(uint32_t afterMilliSeconds)
406 // Guard against overflow of uint32_t
407 if (afterMilliSeconds <= ((UINT32_MAX - (uint32_t)now) * MILLISECONDS_PER_SECOND) /
408 COAP_TICKS_PER_SECOND)
410 return now + (afterMilliSeconds * COAP_TICKS_PER_SECOND)/MILLISECONDS_PER_SECOND;
418 void CopyEndpointToDevAddr(const CAEndpoint_t *in, OCDevAddr *out)
420 VERIFY_NON_NULL_NR(in, FATAL);
421 VERIFY_NON_NULL_NR(out, FATAL);
423 out->adapter = (OCTransportAdapter)in->adapter;
424 out->flags = CAToOCTransportFlags(in->flags);
425 OICStrcpy(out->addr, sizeof(out->addr), in->addr);
426 out->port = in->port;
427 out->interface = in->interface;
428 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
429 memcpy(out->routeData, in->routeData, sizeof(out->routeData));
433 void CopyDevAddrToEndpoint(const OCDevAddr *in, CAEndpoint_t *out)
435 VERIFY_NON_NULL_NR(in, FATAL);
436 VERIFY_NON_NULL_NR(out, FATAL);
438 out->adapter = (CATransportAdapter_t)in->adapter;
439 out->flags = OCToCATransportFlags(in->flags);
440 OICStrcpy(out->addr, sizeof(out->addr), in->addr);
441 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
442 memcpy(out->routeData, in->routeData, sizeof(out->routeData));
444 out->port = in->port;
445 out->interface = in->interface;
448 void FixUpClientResponse(OCClientResponse *cr)
450 VERIFY_NON_NULL_NR(cr, FATAL);
452 cr->addr = &cr->devAddr;
453 cr->connType = (OCConnectivityType)
454 ((cr->devAddr.adapter << CT_ADAPTER_SHIFT) | (cr->devAddr.flags & CT_MASK_FLAGS));
457 static OCStackResult OCSendRequest(const CAEndpoint_t *object, CARequestInfo_t *requestInfo)
459 VERIFY_NON_NULL(object, FATAL, OC_STACK_INVALID_PARAM);
460 VERIFY_NON_NULL(requestInfo, FATAL, OC_STACK_INVALID_PARAM);
462 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
463 OCStackResult rmResult = RMAddInfo(object->routeData, &(requestInfo->info.options),
464 &(requestInfo->info.numOptions));
465 if (OC_STACK_OK != rmResult)
467 OC_LOG(ERROR, TAG, "Add destination option failed");
472 // OC stack prefer CBOR encoded payloads.
473 requestInfo->info.acceptFormat = CA_FORMAT_APPLICATION_CBOR;
474 CAResult_t result = CASendRequest(object, requestInfo);
475 if(CA_STATUS_OK != result)
477 OC_LOG_V(ERROR, TAG, "CASendRequest failed with CA error %u", result);
478 return CAResultToOCResult(result);
482 //-----------------------------------------------------------------------------
483 // Internal API function
484 //-----------------------------------------------------------------------------
486 // This internal function is called to update the stack with the status of
487 // observers and communication failures
488 OCStackResult OCStackFeedBack(CAToken_t token, uint8_t tokenLength, uint8_t status)
490 OCStackResult result = OC_STACK_ERROR;
491 ResourceObserver * observer = NULL;
492 OCEntityHandlerRequest ehRequest = {0};
496 case OC_OBSERVER_NOT_INTERESTED:
497 OC_LOG(DEBUG, TAG, "observer not interested in our notifications");
498 observer = GetObserverUsingToken (token, tokenLength);
501 result = FormOCEntityHandlerRequest(&ehRequest,
502 (OCRequestHandle)NULL,
505 (OCResourceHandle)NULL,
506 NULL, PAYLOAD_TYPE_REPRESENTATION,
508 OC_OBSERVE_DEREGISTER,
509 observer->observeId);
510 if(result != OC_STACK_OK)
514 observer->resource->entityHandler(OC_OBSERVE_FLAG, &ehRequest,
515 observer->resource->entityHandlerCallbackParam);
518 result = DeleteObserverUsingToken (token, tokenLength);
519 if(result == OC_STACK_OK)
521 OC_LOG(DEBUG, TAG, "Removed observer successfully");
525 result = OC_STACK_OK;
526 OC_LOG(DEBUG, TAG, "Observer Removal failed");
530 case OC_OBSERVER_STILL_INTERESTED:
531 OC_LOG(DEBUG, TAG, "observer still interested, reset the failedCount");
532 observer = GetObserverUsingToken (token, tokenLength);
535 observer->forceHighQos = 0;
536 observer->failedCommCount = 0;
537 result = OC_STACK_OK;
541 result = OC_STACK_OBSERVER_NOT_FOUND;
545 case OC_OBSERVER_FAILED_COMM:
546 OC_LOG(DEBUG, TAG, "observer is unreachable");
547 observer = GetObserverUsingToken (token, tokenLength);
550 if(observer->failedCommCount >= MAX_OBSERVER_FAILED_COMM)
552 result = FormOCEntityHandlerRequest(&ehRequest,
553 (OCRequestHandle)NULL,
556 (OCResourceHandle)NULL,
557 NULL, PAYLOAD_TYPE_REPRESENTATION,
559 OC_OBSERVE_DEREGISTER,
560 observer->observeId);
561 if(result != OC_STACK_OK)
563 return OC_STACK_ERROR;
565 observer->resource->entityHandler(OC_OBSERVE_FLAG, &ehRequest,
566 observer->resource->entityHandlerCallbackParam);
568 result = DeleteObserverUsingToken (token, tokenLength);
569 if(result == OC_STACK_OK)
571 OC_LOG(DEBUG, TAG, "Removed observer successfully");
575 result = OC_STACK_OK;
576 OC_LOG(DEBUG, TAG, "Observer Removal failed");
581 observer->failedCommCount++;
582 result = OC_STACK_CONTINUE;
584 observer->forceHighQos = 1;
585 OC_LOG_V(DEBUG, TAG, "Failed count for this observer is %d",observer->failedCommCount);
589 OC_LOG(ERROR, TAG, "Unknown status");
590 result = OC_STACK_ERROR;
595 OCStackResult CAToOCStackResult(CAResponseResult_t caCode)
597 OCStackResult ret = OC_STACK_ERROR;
602 ret = OC_STACK_RESOURCE_CREATED;
605 ret = OC_STACK_RESOURCE_DELETED;
612 ret = OC_STACK_INVALID_QUERY;
614 case CA_UNAUTHORIZED_REQ:
615 ret = OC_STACK_UNAUTHORIZED_REQ;
618 ret = OC_STACK_INVALID_OPTION;
621 ret = OC_STACK_NO_RESOURCE;
623 case CA_RETRANSMIT_TIMEOUT:
624 ret = OC_STACK_COMM_ERROR;
632 CAResponseResult_t OCToCAStackResult(OCStackResult ocCode, OCMethod method)
634 CAResponseResult_t ret = CA_INTERNAL_SERVER_ERROR;
643 // This Response Code is like HTTP 204 "No Content" but only used in
644 // response to POST and PUT requests.
648 // This Response Code is like HTTP 200 "OK" but only used in response to
653 // This should not happen but,
654 // give it a value just in case but output an error
656 OC_LOG_V(ERROR, TAG, "Unexpected OC_STACK_OK return code for method [%d].", method);
659 case OC_STACK_RESOURCE_CREATED:
662 case OC_STACK_RESOURCE_DELETED:
665 case OC_STACK_INVALID_QUERY:
668 case OC_STACK_INVALID_OPTION:
671 case OC_STACK_NO_RESOURCE:
674 case OC_STACK_COMM_ERROR:
675 ret = CA_RETRANSMIT_TIMEOUT;
677 case OC_STACK_UNAUTHORIZED_REQ:
678 ret = CA_UNAUTHORIZED_REQ;
686 CATransportFlags_t OCToCATransportFlags(OCTransportFlags ocFlags)
688 CATransportFlags_t caFlags = (CATransportFlags_t)ocFlags;
690 // supply default behavior.
691 if ((caFlags & (CA_IPV6|CA_IPV4)) == 0)
693 caFlags = (CATransportFlags_t)(caFlags|CA_IPV6|CA_IPV4);
695 if ((caFlags & OC_MASK_SCOPE) == 0)
697 caFlags = (CATransportFlags_t)(caFlags|OC_SCOPE_LINK);
702 OCTransportFlags CAToOCTransportFlags(CATransportFlags_t caFlags)
704 return (OCTransportFlags)caFlags;
707 static OCStackResult ResetPresenceTTL(ClientCB *cbNode, uint32_t maxAgeSeconds)
709 uint32_t lowerBound = 0;
710 uint32_t higherBound = 0;
712 if (!cbNode || !cbNode->presence || !cbNode->presence->timeOut)
714 return OC_STACK_INVALID_PARAM;
717 OC_LOG_V(INFO, TAG, "Update presence TTL, time is %u", GetTicks(0));
719 cbNode->presence->TTL = maxAgeSeconds;
721 for (int index = 0; index < PresenceTimeOutSize; index++)
723 // Guard against overflow
724 if (cbNode->presence->TTL < (UINT32_MAX/(MILLISECONDS_PER_SECOND*PresenceTimeOut[index]))
727 lowerBound = GetTicks((PresenceTimeOut[index] *
728 cbNode->presence->TTL *
729 MILLISECONDS_PER_SECOND)/100);
733 lowerBound = GetTicks(UINT32_MAX);
736 if (cbNode->presence->TTL < (UINT32_MAX/(MILLISECONDS_PER_SECOND*PresenceTimeOut[index+1]))
739 higherBound = GetTicks((PresenceTimeOut[index + 1] *
740 cbNode->presence->TTL *
741 MILLISECONDS_PER_SECOND)/100);
745 higherBound = GetTicks(UINT32_MAX);
748 cbNode->presence->timeOut[index] = OCGetRandomRange(lowerBound, higherBound);
750 OC_LOG_V(DEBUG, TAG, "lowerBound timeout %d", lowerBound);
751 OC_LOG_V(DEBUG, TAG, "higherBound timeout %d", higherBound);
752 OC_LOG_V(DEBUG, TAG, "timeOut entry %d", cbNode->presence->timeOut[index]);
755 cbNode->presence->TTLlevel = 0;
757 OC_LOG_V(DEBUG, TAG, "this TTL level %d", cbNode->presence->TTLlevel);
761 const char *convertTriggerEnumToString(OCPresenceTrigger trigger)
763 if (trigger == OC_PRESENCE_TRIGGER_CREATE)
765 return OC_RSRVD_TRIGGER_CREATE;
767 else if (trigger == OC_PRESENCE_TRIGGER_CHANGE)
769 return OC_RSRVD_TRIGGER_CHANGE;
773 return OC_RSRVD_TRIGGER_DELETE;
777 OCPresenceTrigger convertTriggerStringToEnum(const char * triggerStr)
781 return OC_PRESENCE_TRIGGER_CREATE;
783 else if(strcmp(triggerStr, OC_RSRVD_TRIGGER_CREATE) == 0)
785 return OC_PRESENCE_TRIGGER_CREATE;
787 else if(strcmp(triggerStr, OC_RSRVD_TRIGGER_CHANGE) == 0)
789 return OC_PRESENCE_TRIGGER_CHANGE;
793 return OC_PRESENCE_TRIGGER_DELETE;
798 * The cononical presence allows constructed URIs to be string compared.
800 * requestUri must be a char array of size CA_MAX_URI_LENGTH
802 static int FormCanonicalPresenceUri(const CAEndpoint_t *endpoint, char *resourceUri,
805 VERIFY_NON_NULL(endpoint , FATAL, OC_STACK_INVALID_PARAM);
806 VERIFY_NON_NULL(resourceUri, FATAL, OC_STACK_INVALID_PARAM);
807 VERIFY_NON_NULL(presenceUri, FATAL, OC_STACK_INVALID_PARAM);
809 CAEndpoint_t *ep = (CAEndpoint_t *)endpoint;
811 if (ep->adapter == CA_ADAPTER_IP)
813 if ((ep->flags & CA_IPV6) && !(ep->flags & CA_IPV4))
815 if ('\0' == ep->addr[0]) // multicast
817 return snprintf(presenceUri, CA_MAX_URI_LENGTH, OC_RSRVD_PRESENCE_URI);
821 return snprintf(presenceUri, CA_MAX_URI_LENGTH, "coap://[%s]:%u%s",
822 ep->addr, ep->port, OC_RSRVD_PRESENCE_URI);
827 if ('\0' == ep->addr[0]) // multicast
829 OICStrcpy(ep->addr, sizeof(ep->addr), OC_MULTICAST_IP);
830 ep->port = OC_MULTICAST_PORT;
832 return snprintf(presenceUri, CA_MAX_URI_LENGTH, "coap://%s:%u%s",
833 ep->addr, ep->port, OC_RSRVD_PRESENCE_URI);
837 // might work for other adapters (untested, but better than nothing)
838 return snprintf(presenceUri, CA_MAX_URI_LENGTH, "coap://%s%s", ep->addr,
839 OC_RSRVD_PRESENCE_URI);
843 OCStackResult HandlePresenceResponse(const CAEndpoint_t *endpoint,
844 const CAResponseInfo_t *responseInfo)
846 VERIFY_NON_NULL(endpoint, FATAL, OC_STACK_INVALID_PARAM);
847 VERIFY_NON_NULL(responseInfo, FATAL, OC_STACK_INVALID_PARAM);
849 OCStackApplicationResult cbResult = OC_STACK_DELETE_TRANSACTION;
850 ClientCB * cbNode = NULL;
851 char *resourceTypeName = NULL;
852 OCClientResponse response = {.devAddr = {.adapter = OC_DEFAULT_ADAPTER}};
853 OCStackResult result = OC_STACK_ERROR;
856 char presenceUri[CA_MAX_URI_LENGTH];
858 int presenceSubscribe = 0;
859 int multicastPresenceSubscribe = 0;
861 if (responseInfo->result != CA_CONTENT)
863 OC_LOG_V(ERROR, TAG, "HandlePresenceResponse failed %d", responseInfo->result);
864 return OC_STACK_ERROR;
867 // check for unicast presence
868 uriLen = FormCanonicalPresenceUri(endpoint, OC_RSRVD_PRESENCE_URI, presenceUri);
869 if (uriLen < 0 || (size_t)uriLen >= sizeof (presenceUri))
871 return OC_STACK_INVALID_URI;
874 cbNode = GetClientCB(NULL, 0, NULL, presenceUri);
877 presenceSubscribe = 1;
881 // check for multiicast presence
882 CAEndpoint_t ep = { .adapter = endpoint->adapter,
883 .flags = endpoint->flags };
885 uriLen = FormCanonicalPresenceUri(&ep, OC_RSRVD_PRESENCE_URI, presenceUri);
887 cbNode = GetClientCB(NULL, 0, NULL, presenceUri);
890 multicastPresenceSubscribe = 1;
894 if (!presenceSubscribe && !multicastPresenceSubscribe)
896 OC_LOG(ERROR, TAG, "Received a presence notification, but no callback, ignoring");
900 response.payload = NULL;
901 response.result = OC_STACK_OK;
903 CopyEndpointToDevAddr(endpoint, &response.devAddr);
904 FixUpClientResponse(&response);
906 if (responseInfo->info.payload)
908 result = OCParsePayload(&response.payload,
909 PAYLOAD_TYPE_PRESENCE,
910 responseInfo->info.payload,
911 responseInfo->info.payloadSize);
913 if(result != OC_STACK_OK)
915 OC_LOG(ERROR, TAG, "Presence parse failed");
918 if(!response.payload || response.payload->type != PAYLOAD_TYPE_PRESENCE)
920 OC_LOG(ERROR, TAG, "Presence payload was wrong type");
921 result = OC_STACK_ERROR;
924 response.sequenceNumber = ((OCPresencePayload*)response.payload)->sequenceNumber;
925 resourceTypeName = ((OCPresencePayload*)response.payload)->resourceType;
926 maxAge = ((OCPresencePayload*)response.payload)->maxAge;
929 if (presenceSubscribe)
931 if(cbNode->sequenceNumber == response.sequenceNumber)
933 OC_LOG(INFO, TAG, "No presence change");
939 OC_LOG(INFO, TAG, "Stopping presence");
940 response.result = OC_STACK_PRESENCE_STOPPED;
943 OICFree(cbNode->presence->timeOut);
944 OICFree(cbNode->presence);
945 cbNode->presence = NULL;
950 if(!cbNode->presence)
952 cbNode->presence = (OCPresence *)OICMalloc(sizeof (OCPresence));
954 if(!(cbNode->presence))
956 OC_LOG(ERROR, TAG, "Could not allocate memory for cbNode->presence");
957 result = OC_STACK_NO_MEMORY;
961 VERIFY_NON_NULL_V(cbNode->presence);
962 cbNode->presence->timeOut = NULL;
963 cbNode->presence->timeOut = (uint32_t *)
964 OICMalloc(PresenceTimeOutSize * sizeof(uint32_t));
965 if(!(cbNode->presence->timeOut)){
967 "Could not allocate memory for cbNode->presence->timeOut");
968 OICFree(cbNode->presence);
969 result = OC_STACK_NO_MEMORY;
974 ResetPresenceTTL(cbNode, maxAge);
976 cbNode->sequenceNumber = response.sequenceNumber;
978 // Ensure that a filter is actually applied.
979 if( resourceTypeName && cbNode->filterResourceType)
981 if(!findResourceType(cbNode->filterResourceType, resourceTypeName))
990 // This is the multicast case
991 OCMulticastNode* mcNode = NULL;
992 mcNode = GetMCPresenceNode(presenceUri);
996 if(mcNode->nonce == response.sequenceNumber)
998 OC_LOG(INFO, TAG, "No presence change (Multicast)");
1001 mcNode->nonce = response.sequenceNumber;
1005 OC_LOG(INFO, TAG, "Stopping presence");
1006 response.result = OC_STACK_PRESENCE_STOPPED;
1011 char* uri = OICStrdup(presenceUri);
1015 "No Memory for URI to store in the presence node");
1016 result = OC_STACK_NO_MEMORY;
1020 result = AddMCPresenceNode(&mcNode, uri, response.sequenceNumber);
1021 if(result == OC_STACK_NO_MEMORY)
1024 "No Memory for Multicast Presence Node");
1028 // presence node now owns uri
1031 // Ensure that a filter is actually applied.
1032 if(resourceTypeName && cbNode->filterResourceType)
1034 if(!findResourceType(cbNode->filterResourceType, resourceTypeName))
1041 cbResult = cbNode->callBack(cbNode->context, cbNode->handle, &response);
1043 if (cbResult == OC_STACK_DELETE_TRANSACTION)
1045 FindAndDeleteClientCB(cbNode);
1049 OCPayloadDestroy(response.payload);
1053 void HandleCAResponses(const CAEndpoint_t* endPoint, const CAResponseInfo_t* responseInfo)
1055 VERIFY_NON_NULL_NR(endPoint, FATAL);
1056 VERIFY_NON_NULL_NR(responseInfo, FATAL);
1058 OC_LOG(INFO, TAG, "Enter HandleCAResponses");
1060 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
1061 #ifdef ROUTING_GATEWAY
1062 bool needRIHandling = false;
1064 * Routing manager is going to update either of endpoint or response or both.
1065 * This typecasting is done to avoid unnecessary duplication of Endpoint and responseInfo
1066 * RM can update "routeData" option in endPoint so that future RI requests can be sent to proper
1069 OCStackResult ret = RMHandleResponse((CAResponseInfo_t *)responseInfo, (CAEndpoint_t *)endPoint,
1071 if(ret != OC_STACK_OK || !needRIHandling)
1073 OC_LOG_V(INFO, TAG, "Routing status![%d]. Not forwarding to RI", ret);
1079 * Put source in sender endpoint so that the next packet from application can be routed to
1080 * proper destination and remove "RM" coap header option before passing request / response to
1081 * RI as this option will make no sense to either RI or application.
1083 RMUpdateInfo((CAHeaderOption_t **) &(responseInfo->info.options),
1084 (uint8_t *) &(responseInfo->info.numOptions),
1085 (CAEndpoint_t *) endPoint);
1088 if(responseInfo->info.resourceUri &&
1089 strcmp(responseInfo->info.resourceUri, OC_RSRVD_PRESENCE_URI) == 0)
1091 HandlePresenceResponse(endPoint, responseInfo);
1095 ClientCB *cbNode = GetClientCB(responseInfo->info.token,
1096 responseInfo->info.tokenLength, NULL, NULL);
1098 ResourceObserver * observer = GetObserverUsingToken (responseInfo->info.token,
1099 responseInfo->info.tokenLength);
1103 OC_LOG(INFO, TAG, "There is a cbNode associated with the response token");
1104 if(responseInfo->result == CA_EMPTY)
1106 OC_LOG(INFO, TAG, "Receiving A ACK/RESET for this token");
1107 // We do not have a case for the client to receive a RESET
1108 if(responseInfo->info.type == CA_MSG_ACKNOWLEDGE)
1110 //This is the case of receiving an ACK on a request to a slow resource!
1111 OC_LOG(INFO, TAG, "This is a pure ACK");
1112 //TODO: should we inform the client
1113 // app that at least the request was received at the server?
1116 else if(responseInfo->result == CA_RETRANSMIT_TIMEOUT)
1118 OC_LOG(INFO, TAG, "Receiving A Timeout for this token");
1119 OC_LOG(INFO, TAG, "Calling into application address space");
1121 OCClientResponse response =
1122 {.devAddr = {.adapter = OC_DEFAULT_ADAPTER}};
1123 CopyEndpointToDevAddr(endPoint, &response.devAddr);
1124 FixUpClientResponse(&response);
1125 response.resourceUri = responseInfo->info.resourceUri;
1126 memcpy(response.identity.id, responseInfo->info.identity.id,
1127 sizeof (response.identity.id));
1128 response.identity.id_length = responseInfo->info.identity.id_length;
1130 response.result = CAToOCStackResult(responseInfo->result);
1131 cbNode->callBack(cbNode->context,
1132 cbNode->handle, &response);
1133 FindAndDeleteClientCB(cbNode);
1137 OC_LOG(INFO, TAG, "This is a regular response, A client call back is found");
1138 OC_LOG(INFO, TAG, "Calling into application address space");
1140 OCClientResponse response =
1141 {.devAddr = {.adapter = OC_DEFAULT_ADAPTER}};
1142 response.sequenceNumber = OC_OBSERVE_NO_OPTION;
1143 CopyEndpointToDevAddr(endPoint, &response.devAddr);
1144 FixUpClientResponse(&response);
1145 response.resourceUri = responseInfo->info.resourceUri;
1146 memcpy(response.identity.id, responseInfo->info.identity.id,
1147 sizeof (response.identity.id));
1148 response.identity.id_length = responseInfo->info.identity.id_length;
1150 response.result = CAToOCStackResult(responseInfo->result);
1152 if(responseInfo->info.payload &&
1153 responseInfo->info.payloadSize)
1155 OCPayloadType type = PAYLOAD_TYPE_INVALID;
1156 // check the security resource
1157 if (SRMIsSecurityResourceURI(cbNode->requestUri))
1159 type = PAYLOAD_TYPE_SECURITY;
1161 else if (cbNode->method == OC_REST_DISCOVER)
1163 if (strncmp(OC_RSRVD_WELL_KNOWN_URI,cbNode->requestUri,
1164 sizeof(OC_RSRVD_WELL_KNOWN_URI) - 1) == 0)
1166 type = PAYLOAD_TYPE_DISCOVERY;
1168 else if (strcmp(cbNode->requestUri, OC_RSRVD_DEVICE_URI) == 0)
1170 type = PAYLOAD_TYPE_DEVICE;
1172 else if (strcmp(cbNode->requestUri, OC_RSRVD_PLATFORM_URI) == 0)
1174 type = PAYLOAD_TYPE_PLATFORM;
1176 #ifdef ROUTING_GATEWAY
1177 else if (strcmp(cbNode->requestUri, OC_RSRVD_GATEWAY_URI) == 0)
1179 type = PAYLOAD_TYPE_REPRESENTATION;
1182 else if (strcmp(cbNode->requestUri, OC_RSRVD_RD_URI) == 0)
1184 type = PAYLOAD_TYPE_RD;
1188 OC_LOG_V(ERROR, TAG, "Unknown Payload type in Discovery: %d %s",
1189 cbNode->method, cbNode->requestUri);
1193 else if (cbNode->method == OC_REST_GET ||
1194 cbNode->method == OC_REST_PUT ||
1195 cbNode->method == OC_REST_POST ||
1196 cbNode->method == OC_REST_OBSERVE ||
1197 cbNode->method == OC_REST_OBSERVE_ALL ||
1198 cbNode->method == OC_REST_DELETE)
1200 char targetUri[MAX_URI_LENGTH];
1201 snprintf(targetUri, MAX_URI_LENGTH, "%s?rt=%s",
1202 OC_RSRVD_RD_URI, OC_RSRVD_RESOURCE_TYPE_RDPUBLISH);
1203 if (strcmp(targetUri, cbNode->requestUri) == 0)
1205 type = PAYLOAD_TYPE_RD;
1207 if (type == PAYLOAD_TYPE_INVALID)
1209 OC_LOG_V(INFO, TAG, "Assuming PAYLOAD_TYPE_REPRESENTATION: %d %s",
1210 cbNode->method, cbNode->requestUri);
1211 type = PAYLOAD_TYPE_REPRESENTATION;
1216 OC_LOG_V(ERROR, TAG, "Unknown Payload type: %d %s",
1217 cbNode->method, cbNode->requestUri);
1221 if(OC_STACK_OK != OCParsePayload(&response.payload,
1223 responseInfo->info.payload,
1224 responseInfo->info.payloadSize))
1226 OC_LOG(ERROR, TAG, "Error converting payload");
1227 OCPayloadDestroy(response.payload);
1232 response.numRcvdVendorSpecificHeaderOptions = 0;
1233 if(responseInfo->info.numOptions > 0)
1236 //First option always with option ID is COAP_OPTION_OBSERVE if it is available.
1237 if(responseInfo->info.options[0].optionID == COAP_OPTION_OBSERVE)
1240 uint32_t observationOption;
1241 uint8_t* optionData = (uint8_t*)responseInfo->info.options[0].optionData;
1242 for (observationOption=0, i=0;
1243 i<sizeof(uint32_t) && i<responseInfo->info.options[0].optionLength;
1247 (observationOption << 8) | optionData[i];
1249 response.sequenceNumber = observationOption;
1251 response.numRcvdVendorSpecificHeaderOptions = responseInfo->info.numOptions - 1;
1256 response.numRcvdVendorSpecificHeaderOptions = responseInfo->info.numOptions;
1259 if(response.numRcvdVendorSpecificHeaderOptions > MAX_HEADER_OPTIONS)
1261 OC_LOG(ERROR, TAG, "#header options are more than MAX_HEADER_OPTIONS");
1262 OCPayloadDestroy(response.payload);
1266 for (uint8_t i = start; i < responseInfo->info.numOptions; i++)
1268 memcpy (&(response.rcvdVendorSpecificHeaderOptions[i-start]),
1269 &(responseInfo->info.options[i]), sizeof(OCHeaderOption));
1273 if (cbNode->method == OC_REST_OBSERVE &&
1274 response.sequenceNumber > OC_OFFSET_SEQUENCE_NUMBER &&
1275 response.sequenceNumber <= cbNode->sequenceNumber)
1277 OC_LOG_V(INFO, TAG, "Received stale notification. Number :%d",
1278 response.sequenceNumber);
1282 OCStackApplicationResult appFeedback = cbNode->callBack(cbNode->context,
1285 cbNode->sequenceNumber = response.sequenceNumber;
1287 if (appFeedback == OC_STACK_DELETE_TRANSACTION)
1289 FindAndDeleteClientCB(cbNode);
1293 // To keep discovery callbacks active.
1294 cbNode->TTL = GetTicks(MAX_CB_TIMEOUT_SECONDS *
1295 MILLISECONDS_PER_SECOND);
1299 //Need to send ACK when the response is CON
1300 if(responseInfo->info.type == CA_MSG_CONFIRM)
1302 SendDirectStackResponse(endPoint, responseInfo->info.messageId, CA_EMPTY,
1303 CA_MSG_ACKNOWLEDGE, 0, NULL, NULL, 0, NULL);
1306 OCPayloadDestroy(response.payload);
1313 OC_LOG(INFO, TAG, "There is an observer associated with the response token");
1314 if(responseInfo->result == CA_EMPTY)
1316 OC_LOG(INFO, TAG, "Receiving A ACK/RESET for this token");
1317 if(responseInfo->info.type == CA_MSG_RESET)
1319 OC_LOG(INFO, TAG, "This is a RESET");
1320 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1321 OC_OBSERVER_NOT_INTERESTED);
1323 else if(responseInfo->info.type == CA_MSG_ACKNOWLEDGE)
1325 OC_LOG(INFO, TAG, "This is a pure ACK");
1326 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1327 OC_OBSERVER_STILL_INTERESTED);
1330 else if(responseInfo->result == CA_RETRANSMIT_TIMEOUT)
1332 OC_LOG(INFO, TAG, "Receiving Time Out for an observer");
1333 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1334 OC_OBSERVER_FAILED_COMM);
1339 if(!cbNode && !observer)
1341 if(myStackMode == OC_CLIENT || myStackMode == OC_CLIENT_SERVER
1342 || myStackMode == OC_GATEWAY)
1344 OC_LOG(INFO, TAG, "This is a client, but no cbNode was found for token");
1345 if(responseInfo->result == CA_EMPTY)
1347 OC_LOG(INFO, TAG, "Receiving CA_EMPTY in the ocstack");
1351 OC_LOG(INFO, TAG, "Received a message without callbacks. Sending RESET");
1352 SendDirectStackResponse(endPoint, responseInfo->info.messageId, CA_EMPTY,
1353 CA_MSG_RESET, 0, NULL, NULL, 0, NULL);
1357 if(myStackMode == OC_SERVER || myStackMode == OC_CLIENT_SERVER
1358 || myStackMode == OC_GATEWAY)
1360 OC_LOG(INFO, TAG, "This is a server, but no observer was found for token");
1361 if (responseInfo->info.type == CA_MSG_ACKNOWLEDGE)
1363 OC_LOG_V(INFO, TAG, "Received ACK at server for messageId : %d",
1364 responseInfo->info.messageId);
1366 if (responseInfo->info.type == CA_MSG_RESET)
1368 OC_LOG_V(INFO, TAG, "Received RESET at server for messageId : %d",
1369 responseInfo->info.messageId);
1376 OC_LOG(INFO, TAG, "Exit HandleCAResponses");
1380 * This function handles error response from CA
1381 * code shall be added to handle the errors
1383 void HandleCAErrorResponse(const CAEndpoint_t *endPoint, const CAErrorInfo_t *errrorInfo)
1385 OC_LOG(INFO, TAG, "Enter HandleCAErrorResponse");
1387 if(NULL == endPoint)
1389 OC_LOG(ERROR, TAG, "endPoint is NULL");
1393 if(NULL == errrorInfo)
1395 OC_LOG(ERROR, TAG, "errrorInfo is NULL");
1398 OC_LOG(INFO, TAG, "Exit HandleCAErrorResponse");
1402 * This function sends out Direct Stack Responses. These are responses that are not coming
1403 * from the application entity handler. These responses have no payload and are usually ACKs,
1404 * RESETs or some error conditions that were caught by the stack.
1406 OCStackResult SendDirectStackResponse(const CAEndpoint_t* endPoint, const uint16_t coapID,
1407 const CAResponseResult_t responseResult, const CAMessageType_t type,
1408 const uint8_t numOptions, const CAHeaderOption_t *options,
1409 CAToken_t token, uint8_t tokenLength, const char *resourceUri)
1411 CAResponseInfo_t respInfo = {
1412 .result = responseResult
1414 respInfo.info.messageId = coapID;
1415 respInfo.info.numOptions = numOptions;
1417 if (respInfo.info.numOptions)
1419 respInfo.info.options =
1420 (CAHeaderOption_t *)OICCalloc(respInfo.info.numOptions, sizeof(CAHeaderOption_t));
1421 memcpy (respInfo.info.options, options,
1422 sizeof(CAHeaderOption_t) * respInfo.info.numOptions);
1426 respInfo.info.payload = NULL;
1427 respInfo.info.token = token;
1428 respInfo.info.tokenLength = tokenLength;
1429 respInfo.info.type = type;
1430 respInfo.info.resourceUri = OICStrdup (resourceUri);
1431 respInfo.info.acceptFormat = CA_FORMAT_UNDEFINED;
1433 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
1434 // Add the destination to route option from the endpoint->routeData.
1435 OCStackResult result = RMAddInfo(endPoint->routeData,
1436 &(respInfo.info.options),
1437 &(respInfo.info.numOptions));
1438 if(OC_STACK_OK != result)
1440 OC_LOG_V(ERROR, TAG, "Add routing option failed [%d]", result);
1445 CAResult_t caResult = CASendResponse(endPoint, &respInfo);
1447 // resourceUri in the info field is cloned in the CA layer and
1448 // thus ownership is still here.
1449 OICFree (respInfo.info.resourceUri);
1450 OICFree (respInfo.info.options);
1451 if(CA_STATUS_OK != caResult)
1453 OC_LOG(ERROR, TAG, "CASendResponse error");
1454 return CAResultToOCResult(caResult);
1459 //This function will be called back by CA layer when a request is received
1460 void HandleCARequests(const CAEndpoint_t* endPoint, const CARequestInfo_t* requestInfo)
1462 OC_LOG(INFO, TAG, "Enter HandleCARequests");
1465 OC_LOG(ERROR, TAG, "endPoint is NULL");
1471 OC_LOG(ERROR, TAG, "requestInfo is NULL");
1475 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
1476 #ifdef ROUTING_GATEWAY
1477 bool needRIHandling = false;
1479 * Routing manager is going to update either of endpoint or request or both.
1480 * This typecasting is done to avoid unnecessary duplication of Endpoint and requestInfo
1481 * RM can update "routeData" option in endPoint so that future RI requests can be sent to proper
1482 * destination. It can also remove "RM" coap header option before passing request / response to
1483 * RI as this option will make no sense to either RI or application.
1485 OCStackResult ret = RMHandleRequest((CARequestInfo_t *)requestInfo, (CAEndpoint_t *)endPoint,
1487 if(OC_STACK_OK != ret || !needRIHandling)
1489 OC_LOG_V(INFO, TAG, "Routing status![%d]. Not forwarding to RI", ret);
1495 * Put source in sender endpoint so that the next packet from application can be routed to
1496 * proper destination and remove RM header option.
1498 RMUpdateInfo((CAHeaderOption_t **) &(requestInfo->info.options),
1499 (uint8_t *) &(requestInfo->info.numOptions),
1500 (CAEndpoint_t *) endPoint);
1503 OCStackResult requestResult = OC_STACK_ERROR;
1505 if(myStackMode == OC_CLIENT)
1507 //TODO: should the client be responding to requests?
1511 OCServerProtocolRequest serverRequest = {0};
1513 OC_LOG_V(INFO, TAG, "Endpoint URI : %s", requestInfo->info.resourceUri);
1515 char * uriWithoutQuery = NULL;
1516 char * query = NULL;
1518 requestResult = getQueryFromUri(requestInfo->info.resourceUri, &query, &uriWithoutQuery);
1520 if (requestResult != OC_STACK_OK || !uriWithoutQuery)
1522 OC_LOG_V(ERROR, TAG, "getQueryFromUri() failed with OC error code %d\n", requestResult);
1525 OC_LOG_V(INFO, TAG, "URI without query: %s", uriWithoutQuery);
1526 OC_LOG_V(INFO, TAG, "Query : %s", query);
1528 if(strlen(uriWithoutQuery) < MAX_URI_LENGTH)
1530 OICStrcpy(serverRequest.resourceUrl, sizeof(serverRequest.resourceUrl), uriWithoutQuery);
1531 OICFree(uriWithoutQuery);
1535 OC_LOG(ERROR, TAG, "URI length exceeds MAX_URI_LENGTH.");
1536 OICFree(uriWithoutQuery);
1543 if(strlen(query) < MAX_QUERY_LENGTH)
1545 OICStrcpy(serverRequest.query, sizeof(serverRequest.query), query);
1550 OC_LOG(ERROR, TAG, "Query length exceeds MAX_QUERY_LENGTH.");
1556 if ((requestInfo->info.payload) && (0 < requestInfo->info.payloadSize))
1558 serverRequest.reqTotalSize = requestInfo->info.payloadSize;
1559 serverRequest.payload = (uint8_t *) OICMalloc(requestInfo->info.payloadSize);
1560 memcpy (serverRequest.payload, requestInfo->info.payload,
1561 requestInfo->info.payloadSize);
1565 serverRequest.reqTotalSize = 0;
1568 switch (requestInfo->method)
1571 serverRequest.method = OC_REST_GET;
1574 serverRequest.method = OC_REST_PUT;
1577 serverRequest.method = OC_REST_POST;
1580 serverRequest.method = OC_REST_DELETE;
1583 OC_LOG_V(ERROR, TAG, "Received CA method %d not supported", requestInfo->method);
1584 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_BAD_REQ,
1585 requestInfo->info.type, requestInfo->info.numOptions,
1586 requestInfo->info.options, requestInfo->info.token,
1587 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1588 OICFree(serverRequest.payload);
1592 OC_LOG_BUFFER(INFO, TAG, (const uint8_t *)requestInfo->info.token,
1593 requestInfo->info.tokenLength);
1594 serverRequest.requestToken = (CAToken_t)OICMalloc(requestInfo->info.tokenLength);
1595 serverRequest.tokenLength = requestInfo->info.tokenLength;
1597 if (!serverRequest.requestToken)
1599 OC_LOG(FATAL, TAG, "Allocation for token failed.");
1600 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_INTERNAL_SERVER_ERROR,
1601 requestInfo->info.type, requestInfo->info.numOptions,
1602 requestInfo->info.options, requestInfo->info.token,
1603 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1604 OICFree(serverRequest.payload);
1607 memcpy(serverRequest.requestToken, requestInfo->info.token, requestInfo->info.tokenLength);
1609 switch (requestInfo->info.acceptFormat)
1611 case CA_FORMAT_APPLICATION_CBOR:
1612 serverRequest.acceptFormat = OC_FORMAT_CBOR;
1614 case CA_FORMAT_UNDEFINED:
1615 serverRequest.acceptFormat = OC_FORMAT_UNDEFINED;
1618 serverRequest.acceptFormat = OC_FORMAT_UNSUPPORTED;
1621 if (requestInfo->info.type == CA_MSG_CONFIRM)
1623 serverRequest.qos = OC_HIGH_QOS;
1627 serverRequest.qos = OC_LOW_QOS;
1629 // CA does not need the following field
1630 // Are we sure CA does not need them? how is it responding to multicast
1631 serverRequest.delayedResNeeded = 0;
1633 serverRequest.coapID = requestInfo->info.messageId;
1635 CopyEndpointToDevAddr(endPoint, &serverRequest.devAddr);
1637 // copy vendor specific header options
1638 uint8_t tempNum = (requestInfo->info.numOptions);
1640 // Assume no observation requested and it is a pure GET.
1641 // If obs registration/de-registration requested it'll be fetched from the
1642 // options in GetObserveHeaderOption()
1643 serverRequest.observationOption = OC_OBSERVE_NO_OPTION;
1645 GetObserveHeaderOption(&serverRequest.observationOption, requestInfo->info.options, &tempNum);
1646 if (requestInfo->info.numOptions > MAX_HEADER_OPTIONS)
1649 "The request info numOptions is greater than MAX_HEADER_OPTIONS");
1650 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_BAD_OPT,
1651 requestInfo->info.type, requestInfo->info.numOptions,
1652 requestInfo->info.options, requestInfo->info.token,
1653 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1654 OICFree(serverRequest.payload);
1655 OICFree(serverRequest.requestToken);
1658 serverRequest.numRcvdVendorSpecificHeaderOptions = tempNum;
1659 if (serverRequest.numRcvdVendorSpecificHeaderOptions)
1661 memcpy (&(serverRequest.rcvdVendorSpecificHeaderOptions), requestInfo->info.options,
1662 sizeof(CAHeaderOption_t)*tempNum);
1665 requestResult = HandleStackRequests (&serverRequest);
1667 // Send ACK to client as precursor to slow response
1668 if(requestResult == OC_STACK_SLOW_RESOURCE)
1670 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_EMPTY,
1671 CA_MSG_ACKNOWLEDGE,0, NULL, NULL, 0, NULL);
1673 else if(requestResult != OC_STACK_OK)
1675 OC_LOG_V(ERROR, TAG, "HandleStackRequests failed. error: %d", requestResult);
1677 CAResponseResult_t stackResponse =
1678 OCToCAStackResult(requestResult, serverRequest.method);
1680 SendDirectStackResponse(endPoint, requestInfo->info.messageId, stackResponse,
1681 requestInfo->info.type, requestInfo->info.numOptions,
1682 requestInfo->info.options, requestInfo->info.token,
1683 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1685 // requestToken is fed to HandleStackRequests, which then goes to AddServerRequest.
1686 // The token is copied in there, and is thus still owned by this function.
1687 OICFree(serverRequest.payload);
1688 OICFree(serverRequest.requestToken);
1689 OC_LOG(INFO, TAG, "Exit HandleCARequests");
1692 OCStackResult HandleStackRequests(OCServerProtocolRequest * protocolRequest)
1694 OC_LOG(INFO, TAG, "Entering HandleStackRequests (OCStack Layer)");
1695 OCStackResult result = OC_STACK_ERROR;
1696 ResourceHandling resHandling;
1697 OCResource *resource;
1698 if(!protocolRequest)
1700 OC_LOG(ERROR, TAG, "protocolRequest is NULL");
1701 return OC_STACK_INVALID_PARAM;
1704 OCServerRequest * request = GetServerRequestUsingToken(protocolRequest->requestToken,
1705 protocolRequest->tokenLength);
1708 OC_LOG(INFO, TAG, "This is a new Server Request");
1709 result = AddServerRequest(&request, protocolRequest->coapID,
1710 protocolRequest->delayedResNeeded, 0, protocolRequest->method,
1711 protocolRequest->numRcvdVendorSpecificHeaderOptions,
1712 protocolRequest->observationOption, protocolRequest->qos,
1713 protocolRequest->query, protocolRequest->rcvdVendorSpecificHeaderOptions,
1714 protocolRequest->payload, protocolRequest->requestToken,
1715 protocolRequest->tokenLength, protocolRequest->resourceUrl,
1716 protocolRequest->reqTotalSize, protocolRequest->acceptFormat,
1717 &protocolRequest->devAddr);
1718 if (OC_STACK_OK != result)
1720 OC_LOG(ERROR, TAG, "Error adding server request");
1726 OC_LOG(ERROR, TAG, "Out of Memory");
1727 return OC_STACK_NO_MEMORY;
1730 if(!protocolRequest->reqMorePacket)
1732 request->requestComplete = 1;
1737 OC_LOG(INFO, TAG, "This is either a repeated or blocked Server Request");
1740 if(request->requestComplete)
1742 OC_LOG(INFO, TAG, "This Server Request is complete");
1743 result = DetermineResourceHandling (request, &resHandling, &resource);
1744 if (result == OC_STACK_OK)
1746 result = ProcessRequest(resHandling, resource, request);
1751 OC_LOG(INFO, TAG, "This Server Request is incomplete");
1752 result = OC_STACK_CONTINUE;
1757 bool validatePlatformInfo(OCPlatformInfo info)
1760 if (!info.platformID)
1762 OC_LOG(ERROR, TAG, "No platform ID found.");
1766 if (info.manufacturerName)
1768 size_t lenManufacturerName = strlen(info.manufacturerName);
1770 if(lenManufacturerName == 0 || lenManufacturerName > MAX_MANUFACTURER_NAME_LENGTH)
1772 OC_LOG(ERROR, TAG, "Manufacturer name fails length requirements.");
1778 OC_LOG(ERROR, TAG, "No manufacturer name present");
1782 if (info.manufacturerUrl)
1784 if(strlen(info.manufacturerUrl) > MAX_MANUFACTURER_URL_LENGTH)
1786 OC_LOG(ERROR, TAG, "Manufacturer url fails length requirements.");
1793 //-----------------------------------------------------------------------------
1795 //-----------------------------------------------------------------------------
1797 OCStackResult OCSetRAInfo(const OCRAInfo_t *raInfo)
1800 !raInfo->username ||
1801 !raInfo->hostname ||
1802 !raInfo->xmpp_domain)
1805 return OC_STACK_INVALID_PARAM;
1807 OCStackResult result = CAResultToOCResult(CASetRAInfo((const CARAInfo_t *) raInfo));
1808 gRASetInfo = (result == OC_STACK_OK)? true : false;
1814 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode)
1818 return OCInit1(mode, OC_DEFAULT_FLAGS, OC_DEFAULT_FLAGS);
1821 OCStackResult OCInit1(OCMode mode, OCTransportFlags serverFlags, OCTransportFlags clientFlags)
1823 if(stackState == OC_STACK_INITIALIZED)
1825 OC_LOG(INFO, TAG, "Subsequent calls to OCInit() without calling \
1826 OCStop() between them are ignored.");
1830 #ifndef ROUTING_GATEWAY
1831 if (OC_GATEWAY == mode)
1833 OC_LOG(ERROR, TAG, "Routing Manager not supported");
1834 return OC_STACK_INVALID_PARAM;
1841 OC_LOG(ERROR, TAG, "Need to call OCSetRAInfo before calling OCInit");
1842 return OC_STACK_ERROR;
1846 OCStackResult result = OC_STACK_ERROR;
1847 OC_LOG(INFO, TAG, "Entering OCInit");
1850 if (!((mode == OC_CLIENT) || (mode == OC_SERVER) || (mode == OC_CLIENT_SERVER)
1851 || (mode == OC_GATEWAY)))
1853 OC_LOG(ERROR, TAG, "Invalid mode");
1854 return OC_STACK_ERROR;
1858 if (mode == OC_CLIENT || mode == OC_CLIENT_SERVER || mode == OC_GATEWAY)
1860 caglobals.client = true;
1862 if (mode == OC_SERVER || mode == OC_CLIENT_SERVER || mode == OC_GATEWAY)
1864 caglobals.server = true;
1867 caglobals.serverFlags = (CATransportFlags_t)serverFlags;
1868 if (!(caglobals.serverFlags & CA_IPFAMILY_MASK))
1870 caglobals.serverFlags = (CATransportFlags_t)(caglobals.serverFlags|CA_IPV4|CA_IPV6);
1872 caglobals.clientFlags = (CATransportFlags_t)clientFlags;
1873 if (!(caglobals.clientFlags & CA_IPFAMILY_MASK))
1875 caglobals.clientFlags = (CATransportFlags_t)(caglobals.clientFlags|CA_IPV4|CA_IPV6);
1879 if (!(caglobals.serverFlags & CA_IPFAMILY_MASK))
1881 caglobals.serverFlags = (CATransportFlags_t)(caglobals.serverFlags|CA_IPV4);
1883 if (!(caglobals.clientFlags & CA_IPFAMILY_MASK))
1885 caglobals.clientFlags = (CATransportFlags_t)(caglobals.clientFlags|CA_IPV4);
1889 defaultDeviceHandler = NULL;
1890 defaultDeviceHandlerCallbackParameter = NULL;
1893 result = CAResultToOCResult(CAInitialize());
1894 VERIFY_SUCCESS(result, OC_STACK_OK);
1896 result = CAResultToOCResult(OCSelectNetwork());
1897 VERIFY_SUCCESS(result, OC_STACK_OK);
1899 switch (myStackMode)
1902 CARegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1903 result = CAResultToOCResult(CAStartDiscoveryServer());
1904 OC_LOG(INFO, TAG, "Client mode: CAStartDiscoveryServer");
1907 SRMRegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1908 result = CAResultToOCResult(CAStartListeningServer());
1909 OC_LOG(INFO, TAG, "Server mode: CAStartListeningServer");
1911 case OC_CLIENT_SERVER:
1913 SRMRegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1914 result = CAResultToOCResult(CAStartListeningServer());
1915 if(result == OC_STACK_OK)
1917 result = CAResultToOCResult(CAStartDiscoveryServer());
1921 VERIFY_SUCCESS(result, OC_STACK_OK);
1923 #ifdef WITH_PRESENCE
1924 PresenceTimeOutSize = sizeof (PresenceTimeOut) / sizeof (PresenceTimeOut[0]) - 1;
1925 #endif // WITH_PRESENCE
1927 //Update Stack state to initialized
1928 stackState = OC_STACK_INITIALIZED;
1930 // Initialize resource
1931 if(myStackMode != OC_CLIENT)
1933 result = initResources();
1936 // Initialize the SRM Policy Engine
1937 if(result == OC_STACK_OK)
1939 result = SRMInitPolicyEngine();
1940 // TODO after BeachHead delivery: consolidate into single SRMInit()
1943 #ifdef ROUTING_GATEWAY
1944 if (OC_GATEWAY == myStackMode)
1946 result = RMInitialize();
1951 if(result != OC_STACK_OK)
1953 OC_LOG(ERROR, TAG, "Stack initialization error");
1954 deleteAllResources();
1956 stackState = OC_STACK_UNINITIALIZED;
1961 OCStackResult OCStop()
1963 OC_LOG(INFO, TAG, "Entering OCStop");
1965 if (stackState == OC_STACK_UNINIT_IN_PROGRESS)
1967 OC_LOG(DEBUG, TAG, "Stack already stopping, exiting");
1970 else if (stackState != OC_STACK_INITIALIZED)
1972 OC_LOG(ERROR, TAG, "Stack not initialized");
1973 return OC_STACK_ERROR;
1976 stackState = OC_STACK_UNINIT_IN_PROGRESS;
1978 #ifdef WITH_PRESENCE
1979 // Ensure that the TTL associated with ANY and ALL presence notifications originating from
1980 // here send with the code "OC_STACK_PRESENCE_STOPPED" result.
1981 presenceResource.presenceTTL = 0;
1982 #endif // WITH_PRESENCE
1984 #ifdef ROUTING_GATEWAY
1985 if (OC_GATEWAY == myStackMode)
1991 // Free memory dynamically allocated for resources
1992 deleteAllResources();
1994 DeletePlatformInfo();
1996 // Remove all observers
1997 DeleteObserverList();
1998 // Remove all the client callbacks
1999 DeleteClientCBList();
2001 // De-init the SRM Policy Engine
2002 // TODO after BeachHead delivery: consolidate into single SRMDeInit()
2003 SRMDeInitPolicyEngine();
2006 stackState = OC_STACK_UNINITIALIZED;
2010 OCStackResult OCStartMulticastServer()
2012 if(stackState != OC_STACK_INITIALIZED)
2014 OC_LOG(ERROR, TAG, "OCStack is not initalized. Cannot start multicast server.");
2015 return OC_STACK_ERROR;
2017 CAResult_t ret = CAStartListeningServer();
2018 if (CA_STATUS_OK != ret)
2020 OC_LOG_V(ERROR, TAG, "Failed starting listening server: %d", ret);
2021 return OC_STACK_ERROR;
2026 OCStackResult OCStopMulticastServer()
2028 CAResult_t ret = CAStopListeningServer();
2029 if (CA_STATUS_OK != ret)
2031 OC_LOG_V(ERROR, TAG, "Failed stopping listening server: %d", ret);
2032 return OC_STACK_ERROR;
2037 CAMessageType_t qualityOfServiceToMessageType(OCQualityOfService qos)
2042 return CA_MSG_CONFIRM;
2047 return CA_MSG_NONCONFIRM;
2051 OCStackResult verifyUriQueryLength(const char *inputUri, uint16_t uriLen)
2055 query = strchr (inputUri, '?');
2059 if((query - inputUri) > MAX_URI_LENGTH)
2061 return OC_STACK_INVALID_URI;
2064 if((inputUri + uriLen - 1 - query) > MAX_QUERY_LENGTH)
2066 return OC_STACK_INVALID_QUERY;
2069 else if(uriLen > MAX_URI_LENGTH)
2071 return OC_STACK_INVALID_URI;
2077 * A request uri consists of the following components in order:
2080 * CoAP over UDP prefix "coap://"
2081 * CoAP over TCP prefix "coap+tcp://"
2083 * IPv6 address "[1234::5678]"
2084 * IPv4 address "192.168.1.1"
2085 * optional port ":5683"
2086 * resource uri "/oc/core..."
2088 * for PRESENCE requests, extract resource type.
2090 static OCStackResult ParseRequestUri(const char *fullUri,
2091 OCTransportAdapter adapter,
2092 OCTransportFlags flags,
2093 OCDevAddr **devAddr,
2095 char **resourceType)
2097 VERIFY_NON_NULL(fullUri, FATAL, OC_STACK_INVALID_CALLBACK);
2099 OCStackResult result = OC_STACK_OK;
2100 OCDevAddr *da = NULL;
2104 // provide defaults for all returned values
2111 *resourceUri = NULL;
2115 *resourceType = NULL;
2118 // delimit url prefix, if any
2119 const char *start = fullUri;
2120 char *slash2 = strstr(start, "//");
2125 char *slash = strchr(start, '/');
2128 return OC_STACK_INVALID_URI;
2132 // process url scheme
2133 size_t prefixLen = slash2 - fullUri;
2137 if ((prefixLen == sizeof(COAP_TCP) - 1) && (!strncmp(fullUri, COAP_TCP, prefixLen)))
2144 // TODO: this logic should come in with unit tests exercising the various strings
2145 // processs url prefix, if any
2146 size_t urlLen = slash - start;
2150 if (urlLen && devAddr)
2151 { // construct OCDevAddr
2152 if (start[0] == '[')
2154 char *close = strchr(++start, ']');
2155 if (!close || close > slash)
2157 return OC_STACK_INVALID_URI;
2160 if (close[1] == ':')
2164 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_IP);
2165 flags = (OCTransportFlags)(flags | OC_IP_USE_V6);
2169 char *dot = strchr(start, '.');
2170 if (dot && dot < slash)
2172 colon = strchr(start, ':');
2173 end = (colon && colon < slash) ? colon : slash;
2177 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_TCP);
2182 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_IP);
2183 flags = (OCTransportFlags)(flags | OC_IP_USE_V4);
2192 if (len >= sizeof(da->addr))
2194 return OC_STACK_INVALID_URI;
2196 // collect port, if any
2197 if (colon && colon < slash)
2199 for (colon++; colon < slash; colon++)
2202 if (c < '0' || c > '9')
2204 return OC_STACK_INVALID_URI;
2206 port = 10 * port + c - '0';
2211 if (len >= sizeof(da->addr))
2213 return OC_STACK_INVALID_URI;
2216 da = (OCDevAddr *)OICCalloc(sizeof (OCDevAddr), 1);
2219 return OC_STACK_NO_MEMORY;
2221 OICStrcpyPartial(da->addr, sizeof(da->addr), start, len);
2223 da->adapter = adapter;
2225 if (!strncmp(fullUri, "coaps:", 6))
2227 da->flags = (OCTransportFlags)(da->flags|CA_SECURE);
2232 // process resource uri, if any
2234 { // request uri and query
2235 size_t ulen = strlen(slash); // resource uri length
2236 size_t tlen = 0; // resource type length
2239 static const char strPresence[] = "/oic/ad?rt=";
2240 static const size_t lenPresence = sizeof(strPresence) - 1;
2241 if (!strncmp(slash, strPresence, lenPresence))
2243 type = slash + lenPresence;
2244 tlen = ulen - lenPresence;
2249 *resourceUri = (char *)OICMalloc(ulen + 1);
2252 result = OC_STACK_NO_MEMORY;
2255 strcpy(*resourceUri, slash);
2258 if (type && resourceType)
2260 *resourceType = (char *)OICMalloc(tlen + 1);
2263 result = OC_STACK_NO_MEMORY;
2267 OICStrcpy(*resourceType, (tlen+1), type);
2274 // free all returned values
2281 OICFree(*resourceUri);
2285 OICFree(*resourceType);
2290 static OCStackResult OCPreparePresence(CAEndpoint_t *endpoint,
2291 char *resourceUri, char **requestUri)
2293 char uri[CA_MAX_URI_LENGTH];
2295 FormCanonicalPresenceUri(endpoint, resourceUri, uri);
2297 *requestUri = OICStrdup(uri);
2300 return OC_STACK_NO_MEMORY;
2307 * Discover or Perform requests on a specified resource
2309 OCStackResult OCDoResource(OCDoHandle *handle,
2311 const char *requestUri,
2312 const OCDevAddr *destination,
2314 OCConnectivityType connectivityType,
2315 OCQualityOfService qos,
2316 OCCallbackData *cbData,
2317 OCHeaderOption *options,
2320 OC_LOG(INFO, TAG, "Entering OCDoResource");
2322 // Validate input parameters
2323 VERIFY_NON_NULL(cbData, FATAL, OC_STACK_INVALID_CALLBACK);
2324 VERIFY_NON_NULL(cbData->cb, FATAL, OC_STACK_INVALID_CALLBACK);
2325 VERIFY_NON_NULL(requestUri , FATAL, OC_STACK_INVALID_URI);
2327 OCStackResult result = OC_STACK_ERROR;
2328 CAResult_t caResult;
2329 CAToken_t token = NULL;
2330 uint8_t tokenLength = CA_MAX_TOKEN_LEN;
2331 ClientCB *clientCB = NULL;
2332 OCDoHandle resHandle = NULL;
2333 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2334 OCDevAddr tmpDevAddr = { OC_DEFAULT_ADAPTER };
2336 OCTransportAdapter adapter;
2337 OCTransportFlags flags;
2338 // the request contents are put here
2339 CARequestInfo_t requestInfo = {.method = CA_GET};
2340 // requestUri will be parsed into the following three variables
2341 OCDevAddr *devAddr = NULL;
2342 char *resourceUri = NULL;
2343 char *resourceType = NULL;
2345 // This validation is broken, but doesn't cause harm
2346 size_t uriLen = strlen(requestUri );
2347 if ((result = verifyUriQueryLength(requestUri , uriLen)) != OC_STACK_OK)
2353 * Support original behavior with address on resourceUri argument.
2355 adapter = (OCTransportAdapter)(connectivityType >> CT_ADAPTER_SHIFT);
2356 flags = (OCTransportFlags)(connectivityType & CT_MASK_FLAGS);
2358 result = ParseRequestUri(requestUri, adapter, flags, &devAddr, &resourceUri, &resourceType);
2360 if (result != OC_STACK_OK)
2362 OC_LOG_V(DEBUG, TAG, "Unable to parse uri: %s", requestUri);
2369 case OC_REST_OBSERVE:
2370 case OC_REST_OBSERVE_ALL:
2371 case OC_REST_CANCEL_OBSERVE:
2372 requestInfo.method = CA_GET;
2375 requestInfo.method = CA_PUT;
2378 requestInfo.method = CA_POST;
2380 case OC_REST_DELETE:
2381 requestInfo.method = CA_DELETE;
2383 case OC_REST_DISCOVER:
2385 if (destination || devAddr)
2387 requestInfo.isMulticast = false;
2391 tmpDevAddr.adapter = adapter;
2392 tmpDevAddr.flags = flags;
2393 destination = &tmpDevAddr;
2394 requestInfo.isMulticast = true;
2396 // CA_DISCOVER will become GET and isMulticast
2397 requestInfo.method = CA_GET;
2399 #ifdef WITH_PRESENCE
2400 case OC_REST_PRESENCE:
2401 // Replacing method type with GET because "presence"
2402 // is a stack layer only implementation.
2403 requestInfo.method = CA_GET;
2407 result = OC_STACK_INVALID_METHOD;
2411 if (!devAddr && !destination)
2413 OC_LOG(DEBUG, TAG, "no devAddr and no destination");
2414 result = OC_STACK_INVALID_PARAM;
2418 /* If not original behavior, use destination argument */
2419 if (destination && !devAddr)
2421 devAddr = (OCDevAddr *)OICMalloc(sizeof (OCDevAddr));
2424 result = OC_STACK_NO_MEMORY;
2427 *devAddr = *destination;
2430 resHandle = GenerateInvocationHandle();
2433 result = OC_STACK_NO_MEMORY;
2437 caResult = CAGenerateToken(&token, tokenLength);
2438 if (caResult != CA_STATUS_OK)
2440 OC_LOG(ERROR, TAG, "CAGenerateToken error");
2441 result= OC_STACK_ERROR;
2445 // fill in request data
2446 requestInfo.info.type = qualityOfServiceToMessageType(qos);
2447 requestInfo.info.token = token;
2448 requestInfo.info.tokenLength = tokenLength;
2449 requestInfo.info.resourceUri = resourceUri;
2451 if ((method == OC_REST_OBSERVE) || (method == OC_REST_OBSERVE_ALL))
2453 result = CreateObserveHeaderOption (&(requestInfo.info.options),
2454 options, numOptions, OC_OBSERVE_REGISTER);
2455 if (result != OC_STACK_OK)
2459 requestInfo.info.numOptions = numOptions + 1;
2463 requestInfo.info.numOptions = numOptions;
2464 requestInfo.info.options =
2465 (CAHeaderOption_t*) OICCalloc(numOptions, sizeof(CAHeaderOption_t));
2466 memcpy(requestInfo.info.options, (CAHeaderOption_t*)options,
2467 numOptions * sizeof(CAHeaderOption_t));
2470 CopyDevAddrToEndpoint(devAddr, &endpoint);
2475 OCConvertPayload(payload, &requestInfo.info.payload, &requestInfo.info.payloadSize))
2478 OC_LOG(ERROR, TAG, "Failed to create CBOR Payload");
2481 requestInfo.info.payloadFormat = CA_FORMAT_APPLICATION_CBOR;
2485 requestInfo.info.payload = NULL;
2486 requestInfo.info.payloadSize = 0;
2487 requestInfo.info.payloadFormat = CA_FORMAT_UNDEFINED;
2490 if (result != OC_STACK_OK)
2492 OC_LOG(ERROR, TAG, "CACreateEndpoint error");
2496 // prepare for response
2497 #ifdef WITH_PRESENCE
2498 if (method == OC_REST_PRESENCE)
2500 char *presenceUri = NULL;
2501 result = OCPreparePresence(&endpoint, resourceUri, &presenceUri);
2502 if (OC_STACK_OK != result)
2507 // Assign full presence uri as coap://ip:port/oic/ad to add to callback list.
2508 // Presence notification will form a canonical uri to
2509 // look for callbacks into the application.
2510 resourceUri = presenceUri;
2514 ttl = GetTicks(MAX_CB_TIMEOUT_SECONDS * MILLISECONDS_PER_SECOND);
2515 result = AddClientCB(&clientCB, cbData, token, tokenLength, &resHandle,
2516 method, devAddr, resourceUri, resourceType, ttl);
2517 if (OC_STACK_OK != result)
2522 devAddr = NULL; // Client CB list entry now owns it
2523 resourceUri = NULL; // Client CB list entry now owns it
2524 resourceType = NULL; // Client CB list entry now owns it
2527 result = OCSendRequest(&endpoint, &requestInfo);
2528 if (OC_STACK_OK != result)
2535 *handle = resHandle;
2539 if (result != OC_STACK_OK)
2541 OC_LOG(ERROR, TAG, "OCDoResource error");
2542 FindAndDeleteClientCB(clientCB);
2543 CADestroyToken(token);
2551 // This is the owner of the payload object, so we free it
2552 OCPayloadDestroy(payload);
2553 OICFree(requestInfo.info.payload);
2555 OICFree(resourceUri);
2556 OICFree(resourceType);
2557 OICFree(requestInfo.info.options);
2561 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
2565 * This ftn is implemented one of two ways in the case of observation:
2567 * 1. qos == OC_NON_CONFIRMABLE. When observe is unobserved..
2568 * Remove the callback associated on client side.
2569 * When the next notification comes in from server,
2570 * reply with RESET message to server.
2571 * Keep in mind that the server will react to RESET only
2572 * if the last notification was sent as CON
2574 * 2. qos == OC_CONFIRMABLE. When OCCancel is called,
2575 * and it is associated with an observe request
2576 * (i.e. ClientCB->method == OC_REST_OBSERVE || OC_REST_OBSERVE_ALL),
2577 * Send CON Observe request to server with
2578 * observe flag = OC_RESOURCE_OBSERVE_DEREGISTER.
2579 * Remove the callback associated on client side.
2581 OCStackResult ret = OC_STACK_OK;
2582 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2583 CARequestInfo_t requestInfo = {.method = CA_GET};
2587 return OC_STACK_INVALID_PARAM;
2590 ClientCB *clientCB = GetClientCB(NULL, 0, handle, NULL);
2593 OC_LOG(ERROR, TAG, "Callback not found. Called OCCancel on same resource twice?");
2594 return OC_STACK_ERROR;
2597 switch (clientCB->method)
2599 case OC_REST_OBSERVE:
2600 case OC_REST_OBSERVE_ALL:
2602 OC_LOG_V(INFO, TAG, "Canceling observation for resource %s",
2603 clientCB->requestUri);
2604 if (qos != OC_HIGH_QOS)
2606 FindAndDeleteClientCB(clientCB);
2610 OC_LOG(INFO, TAG, "Cancelling observation as CONFIRMABLE");
2612 requestInfo.info.type = qualityOfServiceToMessageType(qos);
2613 requestInfo.info.token = clientCB->token;
2614 requestInfo.info.tokenLength = clientCB->tokenLength;
2616 if (CreateObserveHeaderOption (&(requestInfo.info.options),
2617 options, numOptions, OC_OBSERVE_DEREGISTER) != OC_STACK_OK)
2619 return OC_STACK_ERROR;
2621 requestInfo.info.numOptions = numOptions + 1;
2622 requestInfo.info.resourceUri = OICStrdup (clientCB->requestUri);
2624 CopyDevAddrToEndpoint(clientCB->devAddr, &endpoint);
2626 ret = OCSendRequest(&endpoint, &requestInfo);
2628 if (requestInfo.info.options)
2630 OICFree (requestInfo.info.options);
2632 if (requestInfo.info.resourceUri)
2634 OICFree (requestInfo.info.resourceUri);
2639 #ifdef WITH_PRESENCE
2640 case OC_REST_PRESENCE:
2641 FindAndDeleteClientCB(clientCB);
2646 ret = OC_STACK_INVALID_METHOD;
2654 * @brief Register Persistent storage callback.
2655 * @param persistentStorageHandler [IN] Pointers to open, read, write, close & unlink handlers.
2657 * OC_STACK_OK - No errors; Success
2658 * OC_STACK_INVALID_PARAM - Invalid parameter
2660 OCStackResult OCRegisterPersistentStorageHandler(OCPersistentStorage* persistentStorageHandler)
2662 OC_LOG(INFO, TAG, "RegisterPersistentStorageHandler !!");
2663 if(!persistentStorageHandler)
2665 OC_LOG(ERROR, TAG, "The persistent storage handler is invalid");
2666 return OC_STACK_INVALID_PARAM;
2670 if( !persistentStorageHandler->open ||
2671 !persistentStorageHandler->close ||
2672 !persistentStorageHandler->read ||
2673 !persistentStorageHandler->unlink ||
2674 !persistentStorageHandler->write)
2676 OC_LOG(ERROR, TAG, "The persistent storage handler is invalid");
2677 return OC_STACK_INVALID_PARAM;
2680 return SRMRegisterPersistentStorageHandler(persistentStorageHandler);
2683 #ifdef WITH_PRESENCE
2685 OCStackResult OCProcessPresence()
2687 OCStackResult result = OC_STACK_OK;
2689 // the following line floods the log with messages that are irrelevant
2690 // to most purposes. Uncomment as needed.
2691 //OC_LOG(INFO, TAG, "Entering RequestPresence");
2692 ClientCB* cbNode = NULL;
2693 OCClientResponse clientResponse;
2694 OCStackApplicationResult cbResult = OC_STACK_DELETE_TRANSACTION;
2696 LL_FOREACH(cbList, cbNode)
2698 if (OC_REST_PRESENCE != cbNode->method || !cbNode->presence)
2703 uint32_t now = GetTicks(0);
2704 OC_LOG_V(DEBUG, TAG, "this TTL level %d",
2705 cbNode->presence->TTLlevel);
2706 OC_LOG_V(DEBUG, TAG, "current ticks %d", now);
2708 if (cbNode->presence->TTLlevel > PresenceTimeOutSize)
2713 if (cbNode->presence->TTLlevel < PresenceTimeOutSize)
2715 OC_LOG_V(DEBUG, TAG, "timeout ticks %d",
2716 cbNode->presence->timeOut[cbNode->presence->TTLlevel]);
2718 if (cbNode->presence->TTLlevel >= PresenceTimeOutSize)
2720 OC_LOG(DEBUG, TAG, "No more timeout ticks");
2722 clientResponse.sequenceNumber = 0;
2723 clientResponse.result = OC_STACK_PRESENCE_TIMEOUT;
2724 clientResponse.devAddr = *cbNode->devAddr;
2725 FixUpClientResponse(&clientResponse);
2726 clientResponse.payload = NULL;
2728 // Increment the TTLLevel (going to a next state), so we don't keep
2729 // sending presence notification to client.
2730 cbNode->presence->TTLlevel++;
2731 OC_LOG_V(DEBUG, TAG, "moving to TTL level %d",
2732 cbNode->presence->TTLlevel);
2734 cbResult = cbNode->callBack(cbNode->context, cbNode->handle, &clientResponse);
2735 if (cbResult == OC_STACK_DELETE_TRANSACTION)
2737 FindAndDeleteClientCB(cbNode);
2741 if (now < cbNode->presence->timeOut[cbNode->presence->TTLlevel])
2746 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2747 CAInfo_t requestData = {.type = CA_MSG_CONFIRM};
2748 CARequestInfo_t requestInfo = {.method = CA_GET};
2750 OC_LOG(DEBUG, TAG, "time to test server presence");
2752 CopyDevAddrToEndpoint(cbNode->devAddr, &endpoint);
2754 requestData.type = CA_MSG_NONCONFIRM;
2755 requestData.token = cbNode->token;
2756 requestData.tokenLength = cbNode->tokenLength;
2757 requestData.resourceUri = OC_RSRVD_PRESENCE_URI;
2758 requestInfo.method = CA_GET;
2759 requestInfo.info = requestData;
2761 result = OCSendRequest(&endpoint, &requestInfo);
2762 if (OC_STACK_OK != result)
2767 cbNode->presence->TTLlevel++;
2768 OC_LOG_V(DEBUG, TAG, "moving to TTL level %d", cbNode->presence->TTLlevel);
2771 if (result != OC_STACK_OK)
2773 OC_LOG(ERROR, TAG, "OCProcessPresence error");
2778 #endif // WITH_PRESENCE
2780 OCStackResult OCProcess()
2782 #ifdef WITH_PRESENCE
2783 OCProcessPresence();
2785 CAHandleRequestResponse();
2787 #ifdef ROUTING_GATEWAY
2793 #ifdef WITH_PRESENCE
2794 OCStackResult OCStartPresence(const uint32_t ttl)
2796 uint8_t tokenLength = CA_MAX_TOKEN_LEN;
2797 OCChangeResourceProperty(
2798 &(((OCResource *)presenceResource.handle)->resourceProperties),
2801 if (OC_MAX_PRESENCE_TTL_SECONDS < ttl)
2803 presenceResource.presenceTTL = OC_MAX_PRESENCE_TTL_SECONDS;
2804 OC_LOG(INFO, TAG, "Setting Presence TTL to max value");
2808 presenceResource.presenceTTL = OC_DEFAULT_PRESENCE_TTL_SECONDS;
2809 OC_LOG(INFO, TAG, "Setting Presence TTL to default value");
2813 presenceResource.presenceTTL = ttl;
2815 OC_LOG_V(DEBUG, TAG, "Presence TTL is %lu seconds", presenceResource.presenceTTL);
2817 if (OC_PRESENCE_UNINITIALIZED == presenceState)
2819 presenceState = OC_PRESENCE_INITIALIZED;
2821 OCDevAddr devAddr = { OC_DEFAULT_ADAPTER };
2823 CAToken_t caToken = NULL;
2824 CAResult_t caResult = CAGenerateToken(&caToken, tokenLength);
2825 if (caResult != CA_STATUS_OK)
2827 OC_LOG(ERROR, TAG, "CAGenerateToken error");
2828 CADestroyToken(caToken);
2829 return OC_STACK_ERROR;
2832 AddObserver(OC_RSRVD_PRESENCE_URI, NULL, 0, caToken, tokenLength,
2833 (OCResource *)presenceResource.handle, OC_LOW_QOS, OC_FORMAT_UNDEFINED, &devAddr);
2834 CADestroyToken(caToken);
2837 // Each time OCStartPresence is called
2838 // a different random 32-bit integer number is used
2839 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
2841 return SendPresenceNotification(((OCResource *)presenceResource.handle)->rsrcType,
2842 OC_PRESENCE_TRIGGER_CREATE);
2845 OCStackResult OCStopPresence()
2847 OCStackResult result = OC_STACK_ERROR;
2849 if(presenceResource.handle)
2851 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
2853 // make resource inactive
2854 result = OCChangeResourceProperty(
2855 &(((OCResource *) presenceResource.handle)->resourceProperties),
2859 if(result != OC_STACK_OK)
2862 "Changing the presence resource properties to ACTIVE not successful");
2866 return SendStopNotification();
2870 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler,
2871 void* callbackParameter)
2873 defaultDeviceHandler = entityHandler;
2874 defaultDeviceHandlerCallbackParameter = callbackParameter;
2879 OCStackResult OCSetPlatformInfo(OCPlatformInfo platformInfo)
2881 OC_LOG(INFO, TAG, "Entering OCSetPlatformInfo");
2883 if(myStackMode == OC_SERVER || myStackMode == OC_CLIENT_SERVER || myStackMode == OC_GATEWAY)
2885 if (validatePlatformInfo(platformInfo))
2887 return SavePlatformInfo(platformInfo);
2891 return OC_STACK_INVALID_PARAM;
2896 return OC_STACK_ERROR;
2900 OCStackResult OCSetDeviceInfo(OCDeviceInfo deviceInfo)
2902 OC_LOG(INFO, TAG, "Entering OCSetDeviceInfo");
2904 if (!deviceInfo.deviceName || deviceInfo.deviceName[0] == '\0')
2906 OC_LOG(ERROR, TAG, "Null or empty device name.");
2907 return OC_STACK_INVALID_PARAM;
2910 return SaveDeviceInfo(deviceInfo);
2913 OCStackResult OCCreateResource(OCResourceHandle *handle,
2914 const char *resourceTypeName,
2915 const char *resourceInterfaceName,
2916 const char *uri, OCEntityHandler entityHandler,
2917 void* callbackParam,
2918 uint8_t resourceProperties)
2921 OCResource *pointer = NULL;
2922 OCStackResult result = OC_STACK_ERROR;
2924 OC_LOG(INFO, TAG, "Entering OCCreateResource");
2926 if(myStackMode == OC_CLIENT)
2928 return OC_STACK_INVALID_PARAM;
2930 // Validate parameters
2931 if(!uri || uri[0]=='\0' || strlen(uri)>=MAX_URI_LENGTH )
2933 OC_LOG(ERROR, TAG, "URI is empty or too long");
2934 return OC_STACK_INVALID_URI;
2936 // Is it presented during resource discovery?
2937 if (!handle || !resourceTypeName || resourceTypeName[0] == '\0' )
2939 OC_LOG(ERROR, TAG, "Input parameter is NULL");
2940 return OC_STACK_INVALID_PARAM;
2943 if(!resourceInterfaceName || strlen(resourceInterfaceName) == 0)
2945 resourceInterfaceName = OC_RSRVD_INTERFACE_DEFAULT;
2948 // Make sure resourceProperties bitmask has allowed properties specified
2949 if (resourceProperties
2950 > (OC_ACTIVE | OC_DISCOVERABLE | OC_OBSERVABLE | OC_SLOW | OC_SECURE |
2951 OC_EXPLICIT_DISCOVERABLE))
2953 OC_LOG(ERROR, TAG, "Invalid property");
2954 return OC_STACK_INVALID_PARAM;
2957 // If the headResource is NULL, then no resources have been created...
2958 pointer = headResource;
2961 // At least one resources is in the resource list, so we need to search for
2962 // repeated URLs, which are not allowed. If a repeat is found, exit with an error
2965 if (strncmp(uri, pointer->uri, MAX_URI_LENGTH) == 0)
2967 OC_LOG_V(ERROR, TAG, "Resource %s already exists", uri);
2968 return OC_STACK_INVALID_PARAM;
2970 pointer = pointer->next;
2973 // Create the pointer and insert it into the resource list
2974 pointer = (OCResource *) OICCalloc(1, sizeof(OCResource));
2977 result = OC_STACK_NO_MEMORY;
2980 pointer->sequenceNum = OC_OFFSET_SEQUENCE_NUMBER;
2982 insertResource(pointer);
2985 pointer->uri = OICStrdup(uri);
2988 result = OC_STACK_NO_MEMORY;
2992 // Set properties. Set OC_ACTIVE
2993 pointer->resourceProperties = (OCResourceProperty) (resourceProperties
2996 // Add the resourcetype to the resource
2997 result = BindResourceTypeToResource(pointer, resourceTypeName);
2998 if (result != OC_STACK_OK)
3000 OC_LOG(ERROR, TAG, "Error adding resourcetype");
3004 // Add the resourceinterface to the resource
3005 result = BindResourceInterfaceToResource(pointer, resourceInterfaceName);
3006 if (result != OC_STACK_OK)
3008 OC_LOG(ERROR, TAG, "Error adding resourceinterface");
3012 // If an entity handler has been passed, attach it to the newly created
3013 // resource. Otherwise, set the default entity handler.
3016 pointer->entityHandler = entityHandler;
3017 pointer->entityHandlerCallbackParam = callbackParam;
3021 pointer->entityHandler = defaultResourceEHandler;
3022 pointer->entityHandlerCallbackParam = NULL;
3026 result = OC_STACK_OK;
3028 #ifdef WITH_PRESENCE
3029 if (presenceResource.handle)
3031 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3032 SendPresenceNotification(pointer->rsrcType, OC_PRESENCE_TRIGGER_CREATE);
3036 if (result != OC_STACK_OK)
3038 // Deep delete of resource and other dynamic elements that it contains
3039 deleteResource(pointer);
3045 OCStackResult OCBindResource(
3046 OCResourceHandle collectionHandle, OCResourceHandle resourceHandle)
3048 OCResource *resource = NULL;
3051 OC_LOG(INFO, TAG, "Entering OCBindResource");
3053 // Validate parameters
3054 VERIFY_NON_NULL(collectionHandle, ERROR, OC_STACK_ERROR);
3055 VERIFY_NON_NULL(resourceHandle, ERROR, OC_STACK_ERROR);
3056 // Container cannot contain itself
3057 if (collectionHandle == resourceHandle)
3059 OC_LOG(ERROR, TAG, "Added handle equals collection handle");
3060 return OC_STACK_INVALID_PARAM;
3063 // Use the handle to find the resource in the resource linked list
3064 resource = findResource((OCResource *) collectionHandle);
3067 OC_LOG(ERROR, TAG, "Collection handle not found");
3068 return OC_STACK_INVALID_PARAM;
3071 // Look for an open slot to add add the child resource.
3072 // If found, add it and return success
3073 for (i = 0; i < MAX_CONTAINED_RESOURCES; i++)
3075 if (!resource->rsrcResources[i])
3077 resource->rsrcResources[i] = (OCResource *) resourceHandle;
3078 OC_LOG(INFO, TAG, "resource bound");
3080 #ifdef WITH_PRESENCE
3081 if (presenceResource.handle)
3083 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3084 SendPresenceNotification(((OCResource *) resourceHandle)->rsrcType,
3085 OC_PRESENCE_TRIGGER_CHANGE);
3093 // Unable to add resourceHandle, so return error
3094 return OC_STACK_ERROR;
3097 OCStackResult OCUnBindResource(
3098 OCResourceHandle collectionHandle, OCResourceHandle resourceHandle)
3100 OCResource *resource = NULL;
3103 OC_LOG(INFO, TAG, "Entering OCUnBindResource");
3105 // Validate parameters
3106 VERIFY_NON_NULL(collectionHandle, ERROR, OC_STACK_ERROR);
3107 VERIFY_NON_NULL(resourceHandle, ERROR, OC_STACK_ERROR);
3108 // Container cannot contain itself
3109 if (collectionHandle == resourceHandle)
3111 OC_LOG(ERROR, TAG, "removing handle equals collection handle");
3112 return OC_STACK_INVALID_PARAM;
3115 // Use the handle to find the resource in the resource linked list
3116 resource = findResource((OCResource *) collectionHandle);
3119 OC_LOG(ERROR, TAG, "Collection handle not found");
3120 return OC_STACK_INVALID_PARAM;
3123 // Look for an open slot to add add the child resource.
3124 // If found, add it and return success
3125 for (i = 0; i < MAX_CONTAINED_RESOURCES; i++)
3127 if (resourceHandle == resource->rsrcResources[i])
3129 resource->rsrcResources[i] = (OCResource *) NULL;
3130 OC_LOG(INFO, TAG, "resource unbound");
3132 // Send notification when resource is unbounded successfully.
3133 #ifdef WITH_PRESENCE
3134 if (presenceResource.handle)
3136 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3137 SendPresenceNotification(((OCResource *) resourceHandle)->rsrcType,
3138 OC_PRESENCE_TRIGGER_CHANGE);
3145 OC_LOG(INFO, TAG, "resource not found in collection");
3147 // Unable to add resourceHandle, so return error
3148 return OC_STACK_ERROR;
3151 // Precondition is that the parameter has been checked to not equal NULL.
3152 static bool ValidateResourceTypeInterface(const char *resourceItemName)
3154 if (resourceItemName[0] < 'a' || resourceItemName[0] > 'z')
3160 while (resourceItemName[index] != '\0')
3162 if (resourceItemName[index] != '.' &&
3163 resourceItemName[index] != '-' &&
3164 (resourceItemName[index] < 'a' || resourceItemName[index] > 'z') &&
3165 (resourceItemName[index] < '0' || resourceItemName[index] > '9'))
3174 OCStackResult BindResourceTypeToResource(OCResource* resource,
3175 const char *resourceTypeName)
3177 OCResourceType *pointer = NULL;
3179 OCStackResult result = OC_STACK_ERROR;
3181 VERIFY_NON_NULL(resourceTypeName, ERROR, OC_STACK_INVALID_PARAM);
3183 if (!ValidateResourceTypeInterface(resourceTypeName))
3185 OC_LOG(ERROR, TAG, "resource type illegal (see RFC 6690)");
3186 return OC_STACK_INVALID_PARAM;
3189 pointer = (OCResourceType *) OICCalloc(1, sizeof(OCResourceType));
3192 result = OC_STACK_NO_MEMORY;
3196 str = OICStrdup(resourceTypeName);
3199 result = OC_STACK_NO_MEMORY;
3202 pointer->resourcetypename = str;
3204 insertResourceType(resource, pointer);
3205 result = OC_STACK_OK;
3208 if (result != OC_STACK_OK)
3217 OCStackResult BindResourceInterfaceToResource(OCResource* resource,
3218 const char *resourceInterfaceName)
3220 OCResourceInterface *pointer = NULL;
3222 OCStackResult result = OC_STACK_ERROR;
3224 VERIFY_NON_NULL(resourceInterfaceName, ERROR, OC_STACK_INVALID_PARAM);
3226 if (!ValidateResourceTypeInterface(resourceInterfaceName))
3228 OC_LOG(ERROR, TAG, "resource /interface illegal (see RFC 6690)");
3229 return OC_STACK_INVALID_PARAM;
3232 OC_LOG_V(INFO, TAG, "Binding %s interface to %s", resourceInterfaceName, resource->uri);
3234 pointer = (OCResourceInterface *) OICCalloc(1, sizeof(OCResourceInterface));
3237 result = OC_STACK_NO_MEMORY;
3241 str = OICStrdup(resourceInterfaceName);
3244 result = OC_STACK_NO_MEMORY;
3247 pointer->name = str;
3249 // Bind the resourceinterface to the resource
3250 insertResourceInterface(resource, pointer);
3252 result = OC_STACK_OK;
3255 if (result != OC_STACK_OK)
3264 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
3265 const char *resourceTypeName)
3268 OCStackResult result = OC_STACK_ERROR;
3269 OCResource *resource = NULL;
3271 resource = findResource((OCResource *) handle);
3274 OC_LOG(ERROR, TAG, "Resource not found");
3275 return OC_STACK_ERROR;
3278 result = BindResourceTypeToResource(resource, resourceTypeName);
3280 #ifdef WITH_PRESENCE
3281 if(presenceResource.handle)
3283 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3284 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3291 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
3292 const char *resourceInterfaceName)
3295 OCStackResult result = OC_STACK_ERROR;
3296 OCResource *resource = NULL;
3298 resource = findResource((OCResource *) handle);
3301 OC_LOG(ERROR, TAG, "Resource not found");
3302 return OC_STACK_ERROR;
3305 result = BindResourceInterfaceToResource(resource, resourceInterfaceName);
3307 #ifdef WITH_PRESENCE
3308 if (presenceResource.handle)
3310 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3311 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3318 OCStackResult OCGetNumberOfResources(uint8_t *numResources)
3320 OCResource *pointer = headResource;
3322 VERIFY_NON_NULL(numResources, ERROR, OC_STACK_INVALID_PARAM);
3326 *numResources = *numResources + 1;
3327 pointer = pointer->next;
3332 OCResourceHandle OCGetResourceHandle(uint8_t index)
3334 OCResource *pointer = headResource;
3336 for( uint8_t i = 0; i < index && pointer; ++i)
3338 pointer = pointer->next;
3340 return (OCResourceHandle) pointer;
3343 OCStackResult OCDeleteResource(OCResourceHandle handle)
3347 OC_LOG(ERROR, TAG, "Invalid handle for deletion");
3348 return OC_STACK_INVALID_PARAM;
3351 OCResource *resource = findResource((OCResource *) handle);
3352 if (resource == NULL)
3354 OC_LOG(ERROR, TAG, "Resource not found");
3355 return OC_STACK_NO_RESOURCE;
3358 if (deleteResource((OCResource *) handle) != OC_STACK_OK)
3360 OC_LOG(ERROR, TAG, "Error deleting resource");
3361 return OC_STACK_ERROR;
3367 const char *OCGetResourceUri(OCResourceHandle handle)
3369 OCResource *resource = NULL;
3371 resource = findResource((OCResource *) handle);
3374 return resource->uri;
3376 return (const char *) NULL;
3379 OCResourceProperty OCGetResourceProperties(OCResourceHandle handle)
3381 OCResource *resource = NULL;
3383 resource = findResource((OCResource *) handle);
3386 return resource->resourceProperties;
3388 return (OCResourceProperty)-1;
3391 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle,
3392 uint8_t *numResourceTypes)
3394 OCResource *resource = NULL;
3395 OCResourceType *pointer = NULL;
3397 VERIFY_NON_NULL(numResourceTypes, ERROR, OC_STACK_INVALID_PARAM);
3398 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3400 *numResourceTypes = 0;
3402 resource = findResource((OCResource *) handle);
3405 pointer = resource->rsrcType;
3408 *numResourceTypes = *numResourceTypes + 1;
3409 pointer = pointer->next;
3415 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index)
3417 OCResourceType *resourceType = NULL;
3419 resourceType = findResourceTypeAtIndex(handle, index);
3422 return resourceType->resourcetypename;
3424 return (const char *) NULL;
3427 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle,
3428 uint8_t *numResourceInterfaces)
3430 OCResourceInterface *pointer = NULL;
3431 OCResource *resource = NULL;
3433 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3434 VERIFY_NON_NULL(numResourceInterfaces, ERROR, OC_STACK_INVALID_PARAM);
3436 *numResourceInterfaces = 0;
3437 resource = findResource((OCResource *) handle);
3440 pointer = resource->rsrcInterface;
3443 *numResourceInterfaces = *numResourceInterfaces + 1;
3444 pointer = pointer->next;
3450 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index)
3452 OCResourceInterface *resourceInterface = NULL;
3454 resourceInterface = findResourceInterfaceAtIndex(handle, index);
3455 if (resourceInterface)
3457 return resourceInterface->name;
3459 return (const char *) NULL;
3462 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle,
3465 OCResource *resource = NULL;
3467 if (index >= MAX_CONTAINED_RESOURCES)
3472 resource = findResource((OCResource *) collectionHandle);
3478 return resource->rsrcResources[index];
3481 OCStackResult OCBindResourceHandler(OCResourceHandle handle,
3482 OCEntityHandler entityHandler,
3483 void* callbackParam)
3485 OCResource *resource = NULL;
3487 // Validate parameters
3488 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3490 // Use the handle to find the resource in the resource linked list
3491 resource = findResource((OCResource *)handle);
3494 OC_LOG(ERROR, TAG, "Resource not found");
3495 return OC_STACK_ERROR;
3499 resource->entityHandler = entityHandler;
3500 resource->entityHandlerCallbackParam = callbackParam;
3502 #ifdef WITH_PRESENCE
3503 if (presenceResource.handle)
3505 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3506 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3513 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle)
3515 OCResource *resource = NULL;
3517 resource = findResource((OCResource *)handle);
3520 OC_LOG(ERROR, TAG, "Resource not found");
3525 return resource->entityHandler;
3528 void incrementSequenceNumber(OCResource * resPtr)
3530 // Increment the sequence number
3531 resPtr->sequenceNum += 1;
3532 if (resPtr->sequenceNum == MAX_SEQUENCE_NUMBER)
3534 resPtr->sequenceNum = OC_OFFSET_SEQUENCE_NUMBER+1;
3539 #ifdef WITH_PRESENCE
3540 OCStackResult SendPresenceNotification(OCResourceType *resourceType,
3541 OCPresenceTrigger trigger)
3543 OCResource *resPtr = NULL;
3544 OCStackResult result = OC_STACK_ERROR;
3545 OCMethod method = OC_REST_PRESENCE;
3546 uint32_t maxAge = 0;
3547 resPtr = findResource((OCResource *) presenceResource.handle);
3550 return OC_STACK_NO_RESOURCE;
3553 if((((OCResource *) presenceResource.handle)->resourceProperties) & OC_ACTIVE)
3555 maxAge = presenceResource.presenceTTL;
3557 result = SendAllObserverNotification(method, resPtr, maxAge,
3558 trigger, resourceType, OC_LOW_QOS);
3564 OCStackResult SendStopNotification()
3566 OCResource *resPtr = NULL;
3567 OCStackResult result = OC_STACK_ERROR;
3568 OCMethod method = OC_REST_PRESENCE;
3569 resPtr = findResource((OCResource *) presenceResource.handle);
3572 return OC_STACK_NO_RESOURCE;
3575 // maxAge is 0. ResourceType is NULL.
3576 result = SendAllObserverNotification(method, resPtr, 0, OC_PRESENCE_TRIGGER_DELETE,
3582 #endif // WITH_PRESENCE
3583 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos)
3585 OCResource *resPtr = NULL;
3586 OCStackResult result = OC_STACK_ERROR;
3587 OCMethod method = OC_REST_NOMETHOD;
3588 uint32_t maxAge = 0;
3590 OC_LOG(INFO, TAG, "Notifying all observers");
3591 #ifdef WITH_PRESENCE
3592 if(handle == presenceResource.handle)
3596 #endif // WITH_PRESENCE
3597 VERIFY_NON_NULL(handle, ERROR, OC_STACK_ERROR);
3599 // Verify that the resource exists
3600 resPtr = findResource ((OCResource *) handle);
3603 return OC_STACK_NO_RESOURCE;
3607 //only increment in the case of regular observing (not presence)
3608 incrementSequenceNumber(resPtr);
3609 method = OC_REST_OBSERVE;
3610 maxAge = MAX_OBSERVE_AGE;
3611 #ifdef WITH_PRESENCE
3612 result = SendAllObserverNotification (method, resPtr, maxAge,
3613 OC_PRESENCE_TRIGGER_DELETE, NULL, qos);
3615 result = SendAllObserverNotification (method, resPtr, maxAge, qos);
3622 OCNotifyListOfObservers (OCResourceHandle handle,
3623 OCObservationId *obsIdList,
3624 uint8_t numberOfIds,
3625 const OCRepPayload *payload,
3626 OCQualityOfService qos)
3628 OC_LOG(INFO, TAG, "Entering OCNotifyListOfObservers");
3630 OCResource *resPtr = NULL;
3631 //TODO: we should allow the server to define this
3632 uint32_t maxAge = MAX_OBSERVE_AGE;
3634 VERIFY_NON_NULL(handle, ERROR, OC_STACK_ERROR);
3635 VERIFY_NON_NULL(obsIdList, ERROR, OC_STACK_ERROR);
3636 VERIFY_NON_NULL(payload, ERROR, OC_STACK_ERROR);
3638 resPtr = findResource ((OCResource *) handle);
3639 if (NULL == resPtr || myStackMode == OC_CLIENT)
3641 return OC_STACK_NO_RESOURCE;
3645 incrementSequenceNumber(resPtr);
3647 return (SendListObserverNotification(resPtr, obsIdList, numberOfIds,
3648 payload, maxAge, qos));
3651 OCStackResult OCDoResponse(OCEntityHandlerResponse *ehResponse)
3653 OCStackResult result = OC_STACK_ERROR;
3654 OCServerRequest *serverRequest = NULL;
3656 OC_LOG(INFO, TAG, "Entering OCDoResponse");
3658 // Validate input parameters
3659 VERIFY_NON_NULL(ehResponse, ERROR, OC_STACK_INVALID_PARAM);
3660 VERIFY_NON_NULL(ehResponse->requestHandle, ERROR, OC_STACK_INVALID_PARAM);
3663 // Get pointer to request info
3664 serverRequest = GetServerRequestUsingHandle((OCServerRequest *)ehResponse->requestHandle);
3667 // response handler in ocserverrequest.c. Usually HandleSingleResponse.
3668 result = serverRequest->ehResponseHandler(ehResponse);
3674 //-----------------------------------------------------------------------------
3675 // Private internal function definitions
3676 //-----------------------------------------------------------------------------
3677 static OCDoHandle GenerateInvocationHandle()
3679 OCDoHandle handle = NULL;
3680 // Generate token here, it will be deleted when the transaction is deleted
3681 handle = (OCDoHandle) OICMalloc(sizeof(uint8_t[CA_MAX_TOKEN_LEN]));
3684 OCFillRandomMem((uint8_t*)handle, sizeof(uint8_t[CA_MAX_TOKEN_LEN]));
3690 #ifdef WITH_PRESENCE
3691 OCStackResult OCChangeResourceProperty(OCResourceProperty * inputProperty,
3692 OCResourceProperty resourceProperties, uint8_t enable)
3696 return OC_STACK_INVALID_PARAM;
3698 if (resourceProperties
3699 > (OC_ACTIVE | OC_DISCOVERABLE | OC_OBSERVABLE | OC_SLOW))
3701 OC_LOG(ERROR, TAG, "Invalid property");
3702 return OC_STACK_INVALID_PARAM;
3706 *inputProperty = (OCResourceProperty) (*inputProperty & ~(resourceProperties));
3710 *inputProperty = (OCResourceProperty) (*inputProperty | resourceProperties);
3716 OCStackResult initResources()
3718 OCStackResult result = OC_STACK_OK;
3720 headResource = NULL;
3721 tailResource = NULL;
3722 // Init Virtual Resources
3723 #ifdef WITH_PRESENCE
3724 presenceResource.presenceTTL = OC_DEFAULT_PRESENCE_TTL_SECONDS;
3726 result = OCCreateResource(&presenceResource.handle,
3727 OC_RSRVD_RESOURCE_TYPE_PRESENCE,
3729 OC_RSRVD_PRESENCE_URI,
3733 //make resource inactive
3734 result = OCChangeResourceProperty(
3735 &(((OCResource *) presenceResource.handle)->resourceProperties),
3739 if (result == OC_STACK_OK)
3741 result = SRMInitSecureResources();
3747 void insertResource(OCResource *resource)
3751 headResource = resource;
3752 tailResource = resource;
3756 tailResource->next = resource;
3757 tailResource = resource;
3759 resource->next = NULL;
3762 OCResource *findResource(OCResource *resource)
3764 OCResource *pointer = headResource;
3768 if (pointer == resource)
3772 pointer = pointer->next;
3777 void deleteAllResources()
3779 OCResource *pointer = headResource;
3780 OCResource *temp = NULL;
3784 temp = pointer->next;
3785 #ifdef WITH_PRESENCE
3786 if (pointer != (OCResource *) presenceResource.handle)
3788 #endif // WITH_PRESENCE
3789 deleteResource(pointer);
3790 #ifdef WITH_PRESENCE
3792 #endif // WITH_PRESENCE
3796 SRMDeInitSecureResources();
3798 #ifdef WITH_PRESENCE
3799 // Ensure that the last resource to be deleted is the presence resource. This allows for all
3800 // presence notification attributed to their deletion to be processed.
3801 deleteResource((OCResource *) presenceResource.handle);
3802 #endif // WITH_PRESENCE
3805 OCStackResult deleteResource(OCResource *resource)
3807 OCResource *prev = NULL;
3808 OCResource *temp = NULL;
3811 OC_LOG(DEBUG,TAG,"resource is NULL");
3812 return OC_STACK_INVALID_PARAM;
3815 OC_LOG_V (INFO, TAG, "Deleting resource %s", resource->uri);
3817 temp = headResource;
3820 if (temp == resource)
3822 // Invalidate all Resource Properties.
3823 resource->resourceProperties = (OCResourceProperty) 0;
3824 #ifdef WITH_PRESENCE
3825 if(resource != (OCResource *) presenceResource.handle)
3827 #endif // WITH_PRESENCE
3828 OCNotifyAllObservers((OCResourceHandle)resource, OC_HIGH_QOS);
3829 #ifdef WITH_PRESENCE
3832 if(presenceResource.handle)
3834 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3835 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_DELETE);
3838 // Only resource in list.
3839 if (temp == headResource && temp == tailResource)
3841 headResource = NULL;
3842 tailResource = NULL;
3845 else if (temp == headResource)
3847 headResource = temp->next;
3850 else if (temp == tailResource)
3852 tailResource = prev;
3853 tailResource->next = NULL;
3857 prev->next = temp->next;
3860 deleteResourceElements(temp);
3871 return OC_STACK_ERROR;
3874 void deleteResourceElements(OCResource *resource)
3881 OICFree(resource->uri);
3882 deleteResourceType(resource->rsrcType);
3883 deleteResourceInterface(resource->rsrcInterface);
3886 void deleteResourceType(OCResourceType *resourceType)
3888 OCResourceType *pointer = resourceType;
3889 OCResourceType *next = NULL;
3893 next = pointer->next;
3894 OICFree(pointer->resourcetypename);
3900 void deleteResourceInterface(OCResourceInterface *resourceInterface)
3902 OCResourceInterface *pointer = resourceInterface;
3903 OCResourceInterface *next = NULL;
3907 next = pointer->next;
3908 OICFree(pointer->name);
3914 void insertResourceType(OCResource *resource, OCResourceType *resourceType)
3916 OCResourceType *pointer = NULL;
3917 OCResourceType *previous = NULL;
3918 if (!resource || !resourceType)
3922 // resource type list is empty.
3923 else if (!resource->rsrcType)
3925 resource->rsrcType = resourceType;
3929 pointer = resource->rsrcType;
3933 if (!strcmp(resourceType->resourcetypename, pointer->resourcetypename))
3935 OC_LOG_V(INFO, TAG, "Type %s already exists", resourceType->resourcetypename);
3936 OICFree(resourceType->resourcetypename);
3937 OICFree(resourceType);
3941 pointer = pointer->next;
3943 previous->next = resourceType;
3945 resourceType->next = NULL;
3947 OC_LOG_V(INFO, TAG, "Added type %s to %s", resourceType->resourcetypename, resource->uri);
3950 OCResourceType *findResourceTypeAtIndex(OCResourceHandle handle, uint8_t index)
3952 OCResource *resource = NULL;
3953 OCResourceType *pointer = NULL;
3955 // Find the specified resource
3956 resource = findResource((OCResource *) handle);
3962 // Make sure a resource has a resourcetype
3963 if (!resource->rsrcType)
3968 // Iterate through the list
3969 pointer = resource->rsrcType;
3970 for(uint8_t i = 0; i< index && pointer; ++i)
3972 pointer = pointer->next;
3977 OCResourceType *findResourceType(OCResourceType * resourceTypeList, const char * resourceTypeName)
3979 if(resourceTypeList && resourceTypeName)
3981 OCResourceType * rtPointer = resourceTypeList;
3982 while(resourceTypeName && rtPointer)
3984 if(rtPointer->resourcetypename &&
3985 strcmp(resourceTypeName, (const char *)
3986 (rtPointer->resourcetypename)) == 0)
3990 rtPointer = rtPointer->next;
3998 * Insert a new interface into interface linked list only if not already present.
3999 * If alredy present, 2nd arg is free'd.
4000 * Default interface will always be first if present.
4002 void insertResourceInterface(OCResource *resource, OCResourceInterface *newInterface)
4004 OCResourceInterface *pointer = NULL;
4005 OCResourceInterface *previous = NULL;
4007 newInterface->next = NULL;
4009 OCResourceInterface **firstInterface = &(resource->rsrcInterface);
4011 if (!*firstInterface)
4013 *firstInterface = newInterface;
4015 else if (strcmp(newInterface->name, OC_RSRVD_INTERFACE_DEFAULT) == 0)
4017 if (strcmp((*firstInterface)->name, OC_RSRVD_INTERFACE_DEFAULT) == 0)
4019 OICFree(newInterface->name);
4020 OICFree(newInterface);
4025 newInterface->next = *firstInterface;
4026 *firstInterface = newInterface;
4031 pointer = *firstInterface;
4034 if (strcmp(newInterface->name, pointer->name) == 0)
4036 OICFree(newInterface->name);
4037 OICFree(newInterface);
4041 pointer = pointer->next;
4043 previous->next = newInterface;
4047 OCResourceInterface *findResourceInterfaceAtIndex(OCResourceHandle handle,
4050 OCResource *resource = NULL;
4051 OCResourceInterface *pointer = NULL;
4053 // Find the specified resource
4054 resource = findResource((OCResource *) handle);
4060 // Make sure a resource has a resourceinterface
4061 if (!resource->rsrcInterface)
4066 // Iterate through the list
4067 pointer = resource->rsrcInterface;
4069 for (uint8_t i = 0; i < index && pointer; ++i)
4071 pointer = pointer->next;
4077 * This function splits the uri using the '?' delimiter.
4078 * "uriWithoutQuery" is the block of characters between the beginning
4079 * till the delimiter or '\0' which ever comes first.
4080 * "query" is whatever is to the right of the delimiter if present.
4081 * No delimiter sets the query to NULL.
4082 * If either are present, they will be malloc'ed into the params 2, 3.
4083 * The first param, *uri is left untouched.
4085 * NOTE: This function does not account for whitespace at the end of the uri NOR
4086 * malformed uri's with '??'. Whitespace at the end will be assumed to be
4087 * part of the query.
4089 OCStackResult getQueryFromUri(const char * uri, char** query, char ** uriWithoutQuery)
4093 return OC_STACK_INVALID_URI;
4095 if(!query || !uriWithoutQuery)
4097 return OC_STACK_INVALID_PARAM;
4101 *uriWithoutQuery = NULL;
4103 size_t uriWithoutQueryLen = 0;
4104 size_t queryLen = 0;
4105 size_t uriLen = strlen(uri);
4107 char *pointerToDelimiter = strstr(uri, "?");
4109 uriWithoutQueryLen = pointerToDelimiter == NULL ? uriLen : (size_t)(pointerToDelimiter - uri);
4110 queryLen = pointerToDelimiter == NULL ? 0 : uriLen - uriWithoutQueryLen - 1;
4112 if (uriWithoutQueryLen)
4114 *uriWithoutQuery = (char *) OICCalloc(uriWithoutQueryLen + 1, 1);
4115 if (!*uriWithoutQuery)
4119 OICStrcpy(*uriWithoutQuery, uriWithoutQueryLen +1, uri);
4123 *query = (char *) OICCalloc(queryLen + 1, 1);
4126 OICFree(*uriWithoutQuery);
4127 *uriWithoutQuery = NULL;
4130 OICStrcpy(*query, queryLen + 1, pointerToDelimiter + 1);
4136 return OC_STACK_NO_MEMORY;
4139 const OicUuid_t* OCGetServerInstanceID(void)
4141 static bool generated = false;
4142 static OicUuid_t sid;
4148 if (GetDoxmDeviceID(&sid) != OC_STACK_OK)
4150 OC_LOG(FATAL, TAG, "Generate UUID for Server Instance failed!");
4157 const char* OCGetServerInstanceIDString(void)
4159 static bool generated = false;
4160 static char sidStr[UUID_STRING_SIZE];
4167 const OicUuid_t* sid = OCGetServerInstanceID();
4169 if(OCConvertUuidToString(sid->id, sidStr) != RAND_UUID_OK)
4171 OC_LOG(FATAL, TAG, "Generate UUID String for Server Instance failed!");
4179 CAResult_t OCSelectNetwork()
4181 CAResult_t retResult = CA_STATUS_FAILED;
4182 CAResult_t caResult = CA_STATUS_OK;
4184 CATransportAdapter_t connTypes[] = {
4186 CA_ADAPTER_RFCOMM_BTEDR,
4187 CA_ADAPTER_GATT_BTLE
4190 ,CA_ADAPTER_REMOTE_ACCESS
4193 int numConnTypes = sizeof(connTypes)/sizeof(connTypes[0]);
4195 for(int i = 0; i<numConnTypes; i++)
4197 // Ignore CA_NOT_SUPPORTED error. The CA Layer may have not compiled in the interface.
4198 if(caResult == CA_STATUS_OK || caResult == CA_NOT_SUPPORTED)
4200 caResult = CASelectNetwork(connTypes[i]);
4201 if(caResult == CA_STATUS_OK)
4203 retResult = CA_STATUS_OK;
4208 if(retResult != CA_STATUS_OK)
4210 return caResult; // Returns error of appropriate transport that failed fatally.
4216 OCStackResult CAResultToOCResult(CAResult_t caResult)
4222 case CA_STATUS_INVALID_PARAM:
4223 return OC_STACK_INVALID_PARAM;
4224 case CA_ADAPTER_NOT_ENABLED:
4225 return OC_STACK_ADAPTER_NOT_ENABLED;
4226 case CA_SERVER_STARTED_ALREADY:
4228 case CA_SERVER_NOT_STARTED:
4229 return OC_STACK_ERROR;
4230 case CA_DESTINATION_NOT_REACHABLE:
4231 return OC_STACK_COMM_ERROR;
4232 case CA_SOCKET_OPERATION_FAILED:
4233 return OC_STACK_COMM_ERROR;
4234 case CA_SEND_FAILED:
4235 return OC_STACK_COMM_ERROR;
4236 case CA_RECEIVE_FAILED:
4237 return OC_STACK_COMM_ERROR;
4238 case CA_MEMORY_ALLOC_FAILED:
4239 return OC_STACK_NO_MEMORY;
4240 case CA_REQUEST_TIMEOUT:
4241 return OC_STACK_TIMEOUT;
4242 case CA_DESTINATION_DISCONNECTED:
4243 return OC_STACK_COMM_ERROR;
4244 case CA_STATUS_FAILED:
4245 return OC_STACK_ERROR;
4246 case CA_NOT_SUPPORTED:
4247 return OC_STACK_NOTIMPL;
4249 return OC_STACK_ERROR;