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;
1184 OC_LOG_V(ERROR, TAG, "Unknown Payload type in Discovery: %d %s",
1185 cbNode->method, cbNode->requestUri);
1189 else if (cbNode->method == OC_REST_GET ||
1190 cbNode->method == OC_REST_PUT ||
1191 cbNode->method == OC_REST_POST ||
1192 cbNode->method == OC_REST_OBSERVE ||
1193 cbNode->method == OC_REST_OBSERVE_ALL ||
1194 cbNode->method == OC_REST_DELETE)
1196 OC_LOG_V(INFO, TAG, "Assuming PAYLOAD_TYPE_REPRESENTATION: %d %s",
1197 cbNode->method, cbNode->requestUri);
1198 type = PAYLOAD_TYPE_REPRESENTATION;
1202 OC_LOG_V(ERROR, TAG, "Unknown Payload type: %d %s",
1203 cbNode->method, cbNode->requestUri);
1207 if(OC_STACK_OK != OCParsePayload(&response.payload,
1209 responseInfo->info.payload,
1210 responseInfo->info.payloadSize))
1212 OC_LOG(ERROR, TAG, "Error converting payload");
1213 OCPayloadDestroy(response.payload);
1218 response.numRcvdVendorSpecificHeaderOptions = 0;
1219 if(responseInfo->info.numOptions > 0)
1222 //First option always with option ID is COAP_OPTION_OBSERVE if it is available.
1223 if(responseInfo->info.options[0].optionID == COAP_OPTION_OBSERVE)
1226 uint32_t observationOption;
1227 uint8_t* optionData = (uint8_t*)responseInfo->info.options[0].optionData;
1228 for (observationOption=0, i=0;
1229 i<sizeof(uint32_t) && i<responseInfo->info.options[0].optionLength;
1233 (observationOption << 8) | optionData[i];
1235 response.sequenceNumber = observationOption;
1237 response.numRcvdVendorSpecificHeaderOptions = responseInfo->info.numOptions - 1;
1242 response.numRcvdVendorSpecificHeaderOptions = responseInfo->info.numOptions;
1245 if(response.numRcvdVendorSpecificHeaderOptions > MAX_HEADER_OPTIONS)
1247 OC_LOG(ERROR, TAG, "#header options are more than MAX_HEADER_OPTIONS");
1248 OCPayloadDestroy(response.payload);
1252 for (uint8_t i = start; i < responseInfo->info.numOptions; i++)
1254 memcpy (&(response.rcvdVendorSpecificHeaderOptions[i-start]),
1255 &(responseInfo->info.options[i]), sizeof(OCHeaderOption));
1259 if (cbNode->method == OC_REST_OBSERVE &&
1260 response.sequenceNumber > OC_OFFSET_SEQUENCE_NUMBER &&
1261 response.sequenceNumber <= cbNode->sequenceNumber)
1263 OC_LOG_V(INFO, TAG, "Received stale notification. Number :%d",
1264 response.sequenceNumber);
1268 OCStackApplicationResult appFeedback = cbNode->callBack(cbNode->context,
1271 cbNode->sequenceNumber = response.sequenceNumber;
1273 if (appFeedback == OC_STACK_DELETE_TRANSACTION)
1275 FindAndDeleteClientCB(cbNode);
1279 // To keep discovery callbacks active.
1280 cbNode->TTL = GetTicks(MAX_CB_TIMEOUT_SECONDS *
1281 MILLISECONDS_PER_SECOND);
1285 //Need to send ACK when the response is CON
1286 if(responseInfo->info.type == CA_MSG_CONFIRM)
1288 SendDirectStackResponse(endPoint, responseInfo->info.messageId, CA_EMPTY,
1289 CA_MSG_ACKNOWLEDGE, 0, NULL, NULL, 0, NULL);
1292 OCPayloadDestroy(response.payload);
1299 OC_LOG(INFO, TAG, "There is an observer associated with the response token");
1300 if(responseInfo->result == CA_EMPTY)
1302 OC_LOG(INFO, TAG, "Receiving A ACK/RESET for this token");
1303 if(responseInfo->info.type == CA_MSG_RESET)
1305 OC_LOG(INFO, TAG, "This is a RESET");
1306 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1307 OC_OBSERVER_NOT_INTERESTED);
1309 else if(responseInfo->info.type == CA_MSG_ACKNOWLEDGE)
1311 OC_LOG(INFO, TAG, "This is a pure ACK");
1312 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1313 OC_OBSERVER_STILL_INTERESTED);
1316 else if(responseInfo->result == CA_RETRANSMIT_TIMEOUT)
1318 OC_LOG(INFO, TAG, "Receiving Time Out for an observer");
1319 OCStackFeedBack(responseInfo->info.token, responseInfo->info.tokenLength,
1320 OC_OBSERVER_FAILED_COMM);
1325 if(!cbNode && !observer)
1327 if(myStackMode == OC_CLIENT || myStackMode == OC_CLIENT_SERVER
1328 || myStackMode == OC_GATEWAY)
1330 OC_LOG(INFO, TAG, "This is a client, but no cbNode was found for token");
1331 if(responseInfo->result == CA_EMPTY)
1333 OC_LOG(INFO, TAG, "Receiving CA_EMPTY in the ocstack");
1337 OC_LOG(INFO, TAG, "Received a message without callbacks. Sending RESET");
1338 SendDirectStackResponse(endPoint, responseInfo->info.messageId, CA_EMPTY,
1339 CA_MSG_RESET, 0, NULL, NULL, 0, NULL);
1343 if(myStackMode == OC_SERVER || myStackMode == OC_CLIENT_SERVER
1344 || myStackMode == OC_GATEWAY)
1346 OC_LOG(INFO, TAG, "This is a server, but no observer was found for token");
1347 if (responseInfo->info.type == CA_MSG_ACKNOWLEDGE)
1349 OC_LOG_V(INFO, TAG, "Received ACK at server for messageId : %d",
1350 responseInfo->info.messageId);
1352 if (responseInfo->info.type == CA_MSG_RESET)
1354 OC_LOG_V(INFO, TAG, "Received RESET at server for messageId : %d",
1355 responseInfo->info.messageId);
1362 OC_LOG(INFO, TAG, "Exit HandleCAResponses");
1366 * This function handles error response from CA
1367 * code shall be added to handle the errors
1369 void HandleCAErrorResponse(const CAEndpoint_t *endPoint, const CAErrorInfo_t *errrorInfo)
1371 OC_LOG(INFO, TAG, "Enter HandleCAErrorResponse");
1373 if(NULL == endPoint)
1375 OC_LOG(ERROR, TAG, "endPoint is NULL");
1379 if(NULL == errrorInfo)
1381 OC_LOG(ERROR, TAG, "errrorInfo is NULL");
1384 OC_LOG(INFO, TAG, "Exit HandleCAErrorResponse");
1388 * This function sends out Direct Stack Responses. These are responses that are not coming
1389 * from the application entity handler. These responses have no payload and are usually ACKs,
1390 * RESETs or some error conditions that were caught by the stack.
1392 OCStackResult SendDirectStackResponse(const CAEndpoint_t* endPoint, const uint16_t coapID,
1393 const CAResponseResult_t responseResult, const CAMessageType_t type,
1394 const uint8_t numOptions, const CAHeaderOption_t *options,
1395 CAToken_t token, uint8_t tokenLength, const char *resourceUri)
1397 CAResponseInfo_t respInfo = {
1398 .result = responseResult
1400 respInfo.info.messageId = coapID;
1401 respInfo.info.numOptions = numOptions;
1403 if (respInfo.info.numOptions)
1405 respInfo.info.options =
1406 (CAHeaderOption_t *)OICCalloc(respInfo.info.numOptions, sizeof(CAHeaderOption_t));
1407 memcpy (respInfo.info.options, options,
1408 sizeof(CAHeaderOption_t) * respInfo.info.numOptions);
1412 respInfo.info.payload = NULL;
1413 respInfo.info.token = token;
1414 respInfo.info.tokenLength = tokenLength;
1415 respInfo.info.type = type;
1416 respInfo.info.resourceUri = OICStrdup (resourceUri);
1417 respInfo.info.acceptFormat = CA_FORMAT_UNDEFINED;
1419 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
1420 // Add the destination to route option from the endpoint->routeData.
1421 OCStackResult result = RMAddInfo(endPoint->routeData,
1422 &(respInfo.info.options),
1423 &(respInfo.info.numOptions));
1424 if(OC_STACK_OK != result)
1426 OC_LOG_V(ERROR, TAG, "Add routing option failed [%d]", result);
1431 CAResult_t caResult = CASendResponse(endPoint, &respInfo);
1433 // resourceUri in the info field is cloned in the CA layer and
1434 // thus ownership is still here.
1435 OICFree (respInfo.info.resourceUri);
1436 OICFree (respInfo.info.options);
1437 if(CA_STATUS_OK != caResult)
1439 OC_LOG(ERROR, TAG, "CASendResponse error");
1440 return CAResultToOCResult(caResult);
1445 //This function will be called back by CA layer when a request is received
1446 void HandleCARequests(const CAEndpoint_t* endPoint, const CARequestInfo_t* requestInfo)
1448 OC_LOG(INFO, TAG, "Enter HandleCARequests");
1451 OC_LOG(ERROR, TAG, "endPoint is NULL");
1457 OC_LOG(ERROR, TAG, "requestInfo is NULL");
1461 #if defined (ROUTING_GATEWAY) || defined (ROUTING_EP)
1462 #ifdef ROUTING_GATEWAY
1463 bool needRIHandling = false;
1465 * Routing manager is going to update either of endpoint or request or both.
1466 * This typecasting is done to avoid unnecessary duplication of Endpoint and requestInfo
1467 * RM can update "routeData" option in endPoint so that future RI requests can be sent to proper
1468 * destination. It can also remove "RM" coap header option before passing request / response to
1469 * RI as this option will make no sense to either RI or application.
1471 OCStackResult ret = RMHandleRequest((CARequestInfo_t *)requestInfo, (CAEndpoint_t *)endPoint,
1473 if(OC_STACK_OK != ret || !needRIHandling)
1475 OC_LOG_V(INFO, TAG, "Routing status![%d]. Not forwarding to RI", ret);
1481 * Put source in sender endpoint so that the next packet from application can be routed to
1482 * proper destination and remove RM header option.
1484 RMUpdateInfo((CAHeaderOption_t **) &(requestInfo->info.options),
1485 (uint8_t *) &(requestInfo->info.numOptions),
1486 (CAEndpoint_t *) endPoint);
1489 OCStackResult requestResult = OC_STACK_ERROR;
1491 if(myStackMode == OC_CLIENT)
1493 //TODO: should the client be responding to requests?
1497 OCServerProtocolRequest serverRequest = {0};
1499 OC_LOG_V(INFO, TAG, "Endpoint URI : %s", requestInfo->info.resourceUri);
1501 char * uriWithoutQuery = NULL;
1502 char * query = NULL;
1504 requestResult = getQueryFromUri(requestInfo->info.resourceUri, &query, &uriWithoutQuery);
1506 if (requestResult != OC_STACK_OK || !uriWithoutQuery)
1508 OC_LOG_V(ERROR, TAG, "getQueryFromUri() failed with OC error code %d\n", requestResult);
1511 OC_LOG_V(INFO, TAG, "URI without query: %s", uriWithoutQuery);
1512 OC_LOG_V(INFO, TAG, "Query : %s", query);
1514 if(strlen(uriWithoutQuery) < MAX_URI_LENGTH)
1516 OICStrcpy(serverRequest.resourceUrl, sizeof(serverRequest.resourceUrl), uriWithoutQuery);
1517 OICFree(uriWithoutQuery);
1521 OC_LOG(ERROR, TAG, "URI length exceeds MAX_URI_LENGTH.");
1522 OICFree(uriWithoutQuery);
1529 if(strlen(query) < MAX_QUERY_LENGTH)
1531 OICStrcpy(serverRequest.query, sizeof(serverRequest.query), query);
1536 OC_LOG(ERROR, TAG, "Query length exceeds MAX_QUERY_LENGTH.");
1542 if ((requestInfo->info.payload) && (0 < requestInfo->info.payloadSize))
1544 serverRequest.reqTotalSize = requestInfo->info.payloadSize;
1545 serverRequest.payload = (uint8_t *) OICMalloc(requestInfo->info.payloadSize);
1546 memcpy (serverRequest.payload, requestInfo->info.payload,
1547 requestInfo->info.payloadSize);
1551 serverRequest.reqTotalSize = 0;
1554 switch (requestInfo->method)
1557 serverRequest.method = OC_REST_GET;
1560 serverRequest.method = OC_REST_PUT;
1563 serverRequest.method = OC_REST_POST;
1566 serverRequest.method = OC_REST_DELETE;
1569 OC_LOG_V(ERROR, TAG, "Received CA method %d not supported", requestInfo->method);
1570 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_BAD_REQ,
1571 requestInfo->info.type, requestInfo->info.numOptions,
1572 requestInfo->info.options, requestInfo->info.token,
1573 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1574 OICFree(serverRequest.payload);
1578 OC_LOG_BUFFER(INFO, TAG, (const uint8_t *)requestInfo->info.token,
1579 requestInfo->info.tokenLength);
1580 serverRequest.requestToken = (CAToken_t)OICMalloc(requestInfo->info.tokenLength);
1581 serverRequest.tokenLength = requestInfo->info.tokenLength;
1583 if (!serverRequest.requestToken)
1585 OC_LOG(FATAL, TAG, "Allocation for token failed.");
1586 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_INTERNAL_SERVER_ERROR,
1587 requestInfo->info.type, requestInfo->info.numOptions,
1588 requestInfo->info.options, requestInfo->info.token,
1589 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1590 OICFree(serverRequest.payload);
1593 memcpy(serverRequest.requestToken, requestInfo->info.token, requestInfo->info.tokenLength);
1595 switch (requestInfo->info.acceptFormat)
1597 case CA_FORMAT_APPLICATION_CBOR:
1598 serverRequest.acceptFormat = OC_FORMAT_CBOR;
1600 case CA_FORMAT_UNDEFINED:
1601 serverRequest.acceptFormat = OC_FORMAT_UNDEFINED;
1604 serverRequest.acceptFormat = OC_FORMAT_UNSUPPORTED;
1607 if (requestInfo->info.type == CA_MSG_CONFIRM)
1609 serverRequest.qos = OC_HIGH_QOS;
1613 serverRequest.qos = OC_LOW_QOS;
1615 // CA does not need the following field
1616 // Are we sure CA does not need them? how is it responding to multicast
1617 serverRequest.delayedResNeeded = 0;
1619 serverRequest.coapID = requestInfo->info.messageId;
1621 CopyEndpointToDevAddr(endPoint, &serverRequest.devAddr);
1623 // copy vendor specific header options
1624 uint8_t tempNum = (requestInfo->info.numOptions);
1626 // Assume no observation requested and it is a pure GET.
1627 // If obs registration/de-registration requested it'll be fetched from the
1628 // options in GetObserveHeaderOption()
1629 serverRequest.observationOption = OC_OBSERVE_NO_OPTION;
1631 GetObserveHeaderOption(&serverRequest.observationOption, requestInfo->info.options, &tempNum);
1632 if (requestInfo->info.numOptions > MAX_HEADER_OPTIONS)
1635 "The request info numOptions is greater than MAX_HEADER_OPTIONS");
1636 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_BAD_OPT,
1637 requestInfo->info.type, requestInfo->info.numOptions,
1638 requestInfo->info.options, requestInfo->info.token,
1639 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1640 OICFree(serverRequest.payload);
1641 OICFree(serverRequest.requestToken);
1644 serverRequest.numRcvdVendorSpecificHeaderOptions = tempNum;
1645 if (serverRequest.numRcvdVendorSpecificHeaderOptions)
1647 memcpy (&(serverRequest.rcvdVendorSpecificHeaderOptions), requestInfo->info.options,
1648 sizeof(CAHeaderOption_t)*tempNum);
1651 requestResult = HandleStackRequests (&serverRequest);
1653 // Send ACK to client as precursor to slow response
1654 if(requestResult == OC_STACK_SLOW_RESOURCE)
1656 SendDirectStackResponse(endPoint, requestInfo->info.messageId, CA_EMPTY,
1657 CA_MSG_ACKNOWLEDGE,0, NULL, NULL, 0, NULL);
1659 else if(requestResult != OC_STACK_OK)
1661 OC_LOG_V(ERROR, TAG, "HandleStackRequests failed. error: %d", requestResult);
1663 CAResponseResult_t stackResponse =
1664 OCToCAStackResult(requestResult, serverRequest.method);
1666 SendDirectStackResponse(endPoint, requestInfo->info.messageId, stackResponse,
1667 requestInfo->info.type, requestInfo->info.numOptions,
1668 requestInfo->info.options, requestInfo->info.token,
1669 requestInfo->info.tokenLength, requestInfo->info.resourceUri);
1671 // requestToken is fed to HandleStackRequests, which then goes to AddServerRequest.
1672 // The token is copied in there, and is thus still owned by this function.
1673 OICFree(serverRequest.payload);
1674 OICFree(serverRequest.requestToken);
1675 OC_LOG(INFO, TAG, "Exit HandleCARequests");
1678 OCStackResult HandleStackRequests(OCServerProtocolRequest * protocolRequest)
1680 OC_LOG(INFO, TAG, "Entering HandleStackRequests (OCStack Layer)");
1681 OCStackResult result = OC_STACK_ERROR;
1682 ResourceHandling resHandling;
1683 OCResource *resource;
1684 if(!protocolRequest)
1686 OC_LOG(ERROR, TAG, "protocolRequest is NULL");
1687 return OC_STACK_INVALID_PARAM;
1690 OCServerRequest * request = GetServerRequestUsingToken(protocolRequest->requestToken,
1691 protocolRequest->tokenLength);
1694 OC_LOG(INFO, TAG, "This is a new Server Request");
1695 result = AddServerRequest(&request, protocolRequest->coapID,
1696 protocolRequest->delayedResNeeded, 0, protocolRequest->method,
1697 protocolRequest->numRcvdVendorSpecificHeaderOptions,
1698 protocolRequest->observationOption, protocolRequest->qos,
1699 protocolRequest->query, protocolRequest->rcvdVendorSpecificHeaderOptions,
1700 protocolRequest->payload, protocolRequest->requestToken,
1701 protocolRequest->tokenLength, protocolRequest->resourceUrl,
1702 protocolRequest->reqTotalSize, protocolRequest->acceptFormat,
1703 &protocolRequest->devAddr);
1704 if (OC_STACK_OK != result)
1706 OC_LOG(ERROR, TAG, "Error adding server request");
1712 OC_LOG(ERROR, TAG, "Out of Memory");
1713 return OC_STACK_NO_MEMORY;
1716 if(!protocolRequest->reqMorePacket)
1718 request->requestComplete = 1;
1723 OC_LOG(INFO, TAG, "This is either a repeated or blocked Server Request");
1726 if(request->requestComplete)
1728 OC_LOG(INFO, TAG, "This Server Request is complete");
1729 result = DetermineResourceHandling (request, &resHandling, &resource);
1730 if (result == OC_STACK_OK)
1732 result = ProcessRequest(resHandling, resource, request);
1737 OC_LOG(INFO, TAG, "This Server Request is incomplete");
1738 result = OC_STACK_CONTINUE;
1743 bool validatePlatformInfo(OCPlatformInfo info)
1746 if (!info.platformID)
1748 OC_LOG(ERROR, TAG, "No platform ID found.");
1752 if (info.manufacturerName)
1754 size_t lenManufacturerName = strlen(info.manufacturerName);
1756 if(lenManufacturerName == 0 || lenManufacturerName > MAX_MANUFACTURER_NAME_LENGTH)
1758 OC_LOG(ERROR, TAG, "Manufacturer name fails length requirements.");
1764 OC_LOG(ERROR, TAG, "No manufacturer name present");
1768 if (info.manufacturerUrl)
1770 if(strlen(info.manufacturerUrl) > MAX_MANUFACTURER_URL_LENGTH)
1772 OC_LOG(ERROR, TAG, "Manufacturer url fails length requirements.");
1779 //-----------------------------------------------------------------------------
1781 //-----------------------------------------------------------------------------
1783 OCStackResult OCSetRAInfo(const OCRAInfo_t *raInfo)
1786 !raInfo->username ||
1787 !raInfo->hostname ||
1788 !raInfo->xmpp_domain)
1791 return OC_STACK_INVALID_PARAM;
1793 OCStackResult result = CAResultToOCResult(CASetRAInfo((const CARAInfo_t *) raInfo));
1794 gRASetInfo = (result == OC_STACK_OK)? true : false;
1800 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode)
1804 return OCInit1(mode, OC_DEFAULT_FLAGS, OC_DEFAULT_FLAGS);
1807 OCStackResult OCInit1(OCMode mode, OCTransportFlags serverFlags, OCTransportFlags clientFlags)
1809 if(stackState == OC_STACK_INITIALIZED)
1811 OC_LOG(INFO, TAG, "Subsequent calls to OCInit() without calling \
1812 OCStop() between them are ignored.");
1816 #ifndef ROUTING_GATEWAY
1817 if (OC_GATEWAY == mode)
1819 OC_LOG(ERROR, TAG, "Routing Manager not supported");
1820 return OC_STACK_INVALID_PARAM;
1827 OC_LOG(ERROR, TAG, "Need to call OCSetRAInfo before calling OCInit");
1828 return OC_STACK_ERROR;
1832 OCStackResult result = OC_STACK_ERROR;
1833 OC_LOG(INFO, TAG, "Entering OCInit");
1836 if (!((mode == OC_CLIENT) || (mode == OC_SERVER) || (mode == OC_CLIENT_SERVER)
1837 || (mode == OC_GATEWAY)))
1839 OC_LOG(ERROR, TAG, "Invalid mode");
1840 return OC_STACK_ERROR;
1844 if (mode == OC_CLIENT || mode == OC_CLIENT_SERVER || mode == OC_GATEWAY)
1846 caglobals.client = true;
1848 if (mode == OC_SERVER || mode == OC_CLIENT_SERVER || mode == OC_GATEWAY)
1850 caglobals.server = true;
1853 caglobals.serverFlags = (CATransportFlags_t)serverFlags;
1854 if (!(caglobals.serverFlags & CA_IPFAMILY_MASK))
1856 caglobals.serverFlags = (CATransportFlags_t)(caglobals.serverFlags|CA_IPV4|CA_IPV6);
1858 caglobals.clientFlags = (CATransportFlags_t)clientFlags;
1859 if (!(caglobals.clientFlags & CA_IPFAMILY_MASK))
1861 caglobals.clientFlags = (CATransportFlags_t)(caglobals.clientFlags|CA_IPV4|CA_IPV6);
1865 if (!(caglobals.serverFlags & CA_IPFAMILY_MASK))
1867 caglobals.serverFlags = (CATransportFlags_t)(caglobals.serverFlags|CA_IPV4);
1869 if (!(caglobals.clientFlags & CA_IPFAMILY_MASK))
1871 caglobals.clientFlags = (CATransportFlags_t)(caglobals.clientFlags|CA_IPV4);
1875 defaultDeviceHandler = NULL;
1876 defaultDeviceHandlerCallbackParameter = NULL;
1879 result = CAResultToOCResult(CAInitialize());
1880 VERIFY_SUCCESS(result, OC_STACK_OK);
1882 result = CAResultToOCResult(OCSelectNetwork());
1883 VERIFY_SUCCESS(result, OC_STACK_OK);
1885 switch (myStackMode)
1888 CARegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1889 result = CAResultToOCResult(CAStartDiscoveryServer());
1890 OC_LOG(INFO, TAG, "Client mode: CAStartDiscoveryServer");
1893 SRMRegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1894 result = CAResultToOCResult(CAStartListeningServer());
1895 OC_LOG(INFO, TAG, "Server mode: CAStartListeningServer");
1897 case OC_CLIENT_SERVER:
1899 SRMRegisterHandler(HandleCARequests, HandleCAResponses, HandleCAErrorResponse);
1900 result = CAResultToOCResult(CAStartListeningServer());
1901 if(result == OC_STACK_OK)
1903 result = CAResultToOCResult(CAStartDiscoveryServer());
1907 VERIFY_SUCCESS(result, OC_STACK_OK);
1909 #ifdef WITH_PRESENCE
1910 PresenceTimeOutSize = sizeof (PresenceTimeOut) / sizeof (PresenceTimeOut[0]) - 1;
1911 #endif // WITH_PRESENCE
1913 //Update Stack state to initialized
1914 stackState = OC_STACK_INITIALIZED;
1916 // Initialize resource
1917 if(myStackMode != OC_CLIENT)
1919 result = initResources();
1922 // Initialize the SRM Policy Engine
1923 if(result == OC_STACK_OK)
1925 result = SRMInitPolicyEngine();
1926 // TODO after BeachHead delivery: consolidate into single SRMInit()
1929 #ifdef ROUTING_GATEWAY
1930 if (OC_GATEWAY == myStackMode)
1932 result = RMInitialize();
1937 if(result != OC_STACK_OK)
1939 OC_LOG(ERROR, TAG, "Stack initialization error");
1940 deleteAllResources();
1942 stackState = OC_STACK_UNINITIALIZED;
1947 OCStackResult OCStop()
1949 OC_LOG(INFO, TAG, "Entering OCStop");
1951 if (stackState == OC_STACK_UNINIT_IN_PROGRESS)
1953 OC_LOG(DEBUG, TAG, "Stack already stopping, exiting");
1956 else if (stackState != OC_STACK_INITIALIZED)
1958 OC_LOG(ERROR, TAG, "Stack not initialized");
1959 return OC_STACK_ERROR;
1962 stackState = OC_STACK_UNINIT_IN_PROGRESS;
1964 #ifdef WITH_PRESENCE
1965 // Ensure that the TTL associated with ANY and ALL presence notifications originating from
1966 // here send with the code "OC_STACK_PRESENCE_STOPPED" result.
1967 presenceResource.presenceTTL = 0;
1968 #endif // WITH_PRESENCE
1970 #ifdef ROUTING_GATEWAY
1971 if (OC_GATEWAY == myStackMode)
1977 // Free memory dynamically allocated for resources
1978 deleteAllResources();
1980 DeletePlatformInfo();
1982 // Remove all observers
1983 DeleteObserverList();
1984 // Remove all the client callbacks
1985 DeleteClientCBList();
1987 // De-init the SRM Policy Engine
1988 // TODO after BeachHead delivery: consolidate into single SRMDeInit()
1989 SRMDeInitPolicyEngine();
1992 stackState = OC_STACK_UNINITIALIZED;
1996 CAMessageType_t qualityOfServiceToMessageType(OCQualityOfService qos)
2001 return CA_MSG_CONFIRM;
2006 return CA_MSG_NONCONFIRM;
2010 OCStackResult verifyUriQueryLength(const char *inputUri, uint16_t uriLen)
2014 query = strchr (inputUri, '?');
2018 if((query - inputUri) > MAX_URI_LENGTH)
2020 return OC_STACK_INVALID_URI;
2023 if((inputUri + uriLen - 1 - query) > MAX_QUERY_LENGTH)
2025 return OC_STACK_INVALID_QUERY;
2028 else if(uriLen > MAX_URI_LENGTH)
2030 return OC_STACK_INVALID_URI;
2036 * A request uri consists of the following components in order:
2039 * CoAP over UDP prefix "coap://"
2040 * CoAP over TCP prefix "coap+tcp://"
2042 * IPv6 address "[1234::5678]"
2043 * IPv4 address "192.168.1.1"
2044 * optional port ":5683"
2045 * resource uri "/oc/core..."
2047 * for PRESENCE requests, extract resource type.
2049 static OCStackResult ParseRequestUri(const char *fullUri,
2050 OCTransportAdapter adapter,
2051 OCTransportFlags flags,
2052 OCDevAddr **devAddr,
2054 char **resourceType)
2056 VERIFY_NON_NULL(fullUri, FATAL, OC_STACK_INVALID_CALLBACK);
2058 OCStackResult result = OC_STACK_OK;
2059 OCDevAddr *da = NULL;
2063 // provide defaults for all returned values
2070 *resourceUri = NULL;
2074 *resourceType = NULL;
2077 // delimit url prefix, if any
2078 const char *start = fullUri;
2079 char *slash2 = strstr(start, "//");
2084 char *slash = strchr(start, '/');
2087 return OC_STACK_INVALID_URI;
2091 // process url scheme
2092 size_t prefixLen = slash2 - fullUri;
2096 if ((prefixLen == sizeof(COAP_TCP) - 1) && (!strncmp(fullUri, COAP_TCP, prefixLen)))
2103 // TODO: this logic should come in with unit tests exercising the various strings
2104 // processs url prefix, if any
2105 size_t urlLen = slash - start;
2109 if (urlLen && devAddr)
2110 { // construct OCDevAddr
2111 if (start[0] == '[')
2113 char *close = strchr(++start, ']');
2114 if (!close || close > slash)
2116 return OC_STACK_INVALID_URI;
2119 if (close[1] == ':')
2123 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_IP);
2124 flags = (OCTransportFlags)(flags | OC_IP_USE_V6);
2128 char *dot = strchr(start, '.');
2129 if (dot && dot < slash)
2131 colon = strchr(start, ':');
2132 end = (colon && colon < slash) ? colon : slash;
2136 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_TCP);
2141 adapter = (OCTransportAdapter)(adapter | OC_ADAPTER_IP);
2142 flags = (OCTransportFlags)(flags | OC_IP_USE_V4);
2151 if (len >= sizeof(da->addr))
2153 return OC_STACK_INVALID_URI;
2155 // collect port, if any
2156 if (colon && colon < slash)
2158 for (colon++; colon < slash; colon++)
2161 if (c < '0' || c > '9')
2163 return OC_STACK_INVALID_URI;
2165 port = 10 * port + c - '0';
2170 if (len >= sizeof(da->addr))
2172 return OC_STACK_INVALID_URI;
2175 da = (OCDevAddr *)OICCalloc(sizeof (OCDevAddr), 1);
2178 return OC_STACK_NO_MEMORY;
2180 OICStrcpyPartial(da->addr, sizeof(da->addr), start, len);
2182 da->adapter = adapter;
2184 if (!strncmp(fullUri, "coaps:", 6))
2186 da->flags = (OCTransportFlags)(da->flags|CA_SECURE);
2191 // process resource uri, if any
2193 { // request uri and query
2194 size_t ulen = strlen(slash); // resource uri length
2195 size_t tlen = 0; // resource type length
2198 static const char strPresence[] = "/oic/ad?rt=";
2199 static const size_t lenPresence = sizeof(strPresence) - 1;
2200 if (!strncmp(slash, strPresence, lenPresence))
2202 type = slash + lenPresence;
2203 tlen = ulen - lenPresence;
2208 *resourceUri = (char *)OICMalloc(ulen + 1);
2211 result = OC_STACK_NO_MEMORY;
2214 strcpy(*resourceUri, slash);
2217 if (type && resourceType)
2219 *resourceType = (char *)OICMalloc(tlen + 1);
2222 result = OC_STACK_NO_MEMORY;
2226 OICStrcpy(*resourceType, (tlen+1), type);
2233 // free all returned values
2240 OICFree(*resourceUri);
2244 OICFree(*resourceType);
2249 static OCStackResult OCPreparePresence(CAEndpoint_t *endpoint,
2250 char *resourceUri, char **requestUri)
2252 char uri[CA_MAX_URI_LENGTH];
2254 FormCanonicalPresenceUri(endpoint, resourceUri, uri);
2256 *requestUri = OICStrdup(uri);
2259 return OC_STACK_NO_MEMORY;
2266 * Discover or Perform requests on a specified resource
2268 OCStackResult OCDoResource(OCDoHandle *handle,
2270 const char *requestUri,
2271 const OCDevAddr *destination,
2273 OCConnectivityType connectivityType,
2274 OCQualityOfService qos,
2275 OCCallbackData *cbData,
2276 OCHeaderOption *options,
2279 OC_LOG(INFO, TAG, "Entering OCDoResource");
2281 // Validate input parameters
2282 VERIFY_NON_NULL(cbData, FATAL, OC_STACK_INVALID_CALLBACK);
2283 VERIFY_NON_NULL(cbData->cb, FATAL, OC_STACK_INVALID_CALLBACK);
2284 VERIFY_NON_NULL(requestUri , FATAL, OC_STACK_INVALID_URI);
2286 OCStackResult result = OC_STACK_ERROR;
2287 CAResult_t caResult;
2288 CAToken_t token = NULL;
2289 uint8_t tokenLength = CA_MAX_TOKEN_LEN;
2290 ClientCB *clientCB = NULL;
2291 OCDoHandle resHandle = NULL;
2292 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2293 OCDevAddr tmpDevAddr = { OC_DEFAULT_ADAPTER };
2295 OCTransportAdapter adapter;
2296 OCTransportFlags flags;
2297 // the request contents are put here
2298 CARequestInfo_t requestInfo = {.method = CA_GET};
2299 // requestUri will be parsed into the following three variables
2300 OCDevAddr *devAddr = NULL;
2301 char *resourceUri = NULL;
2302 char *resourceType = NULL;
2304 // This validation is broken, but doesn't cause harm
2305 size_t uriLen = strlen(requestUri );
2306 if ((result = verifyUriQueryLength(requestUri , uriLen)) != OC_STACK_OK)
2312 * Support original behavior with address on resourceUri argument.
2314 adapter = (OCTransportAdapter)(connectivityType >> CT_ADAPTER_SHIFT);
2315 flags = (OCTransportFlags)(connectivityType & CT_MASK_FLAGS);
2317 result = ParseRequestUri(requestUri, adapter, flags, &devAddr, &resourceUri, &resourceType);
2319 if (result != OC_STACK_OK)
2321 OC_LOG_V(DEBUG, TAG, "Unable to parse uri: %s", requestUri);
2328 case OC_REST_OBSERVE:
2329 case OC_REST_OBSERVE_ALL:
2330 case OC_REST_CANCEL_OBSERVE:
2331 requestInfo.method = CA_GET;
2334 requestInfo.method = CA_PUT;
2337 requestInfo.method = CA_POST;
2339 case OC_REST_DELETE:
2340 requestInfo.method = CA_DELETE;
2342 case OC_REST_DISCOVER:
2344 if (destination || devAddr)
2346 requestInfo.isMulticast = false;
2350 tmpDevAddr.adapter = adapter;
2351 tmpDevAddr.flags = flags;
2352 destination = &tmpDevAddr;
2353 requestInfo.isMulticast = true;
2355 // CA_DISCOVER will become GET and isMulticast
2356 requestInfo.method = CA_GET;
2358 #ifdef WITH_PRESENCE
2359 case OC_REST_PRESENCE:
2360 // Replacing method type with GET because "presence"
2361 // is a stack layer only implementation.
2362 requestInfo.method = CA_GET;
2366 result = OC_STACK_INVALID_METHOD;
2370 if (!devAddr && !destination)
2372 OC_LOG(DEBUG, TAG, "no devAddr and no destination");
2373 result = OC_STACK_INVALID_PARAM;
2377 /* If not original behavior, use destination argument */
2378 if (destination && !devAddr)
2380 devAddr = (OCDevAddr *)OICMalloc(sizeof (OCDevAddr));
2383 result = OC_STACK_NO_MEMORY;
2386 *devAddr = *destination;
2389 resHandle = GenerateInvocationHandle();
2392 result = OC_STACK_NO_MEMORY;
2396 caResult = CAGenerateToken(&token, tokenLength);
2397 if (caResult != CA_STATUS_OK)
2399 OC_LOG(ERROR, TAG, "CAGenerateToken error");
2400 result= OC_STACK_ERROR;
2404 // fill in request data
2405 requestInfo.info.type = qualityOfServiceToMessageType(qos);
2406 requestInfo.info.token = token;
2407 requestInfo.info.tokenLength = tokenLength;
2408 requestInfo.info.resourceUri = resourceUri;
2410 if ((method == OC_REST_OBSERVE) || (method == OC_REST_OBSERVE_ALL))
2412 result = CreateObserveHeaderOption (&(requestInfo.info.options),
2413 options, numOptions, OC_OBSERVE_REGISTER);
2414 if (result != OC_STACK_OK)
2418 requestInfo.info.numOptions = numOptions + 1;
2422 requestInfo.info.numOptions = numOptions;
2423 requestInfo.info.options =
2424 (CAHeaderOption_t*) OICCalloc(numOptions, sizeof(CAHeaderOption_t));
2425 memcpy(requestInfo.info.options, (CAHeaderOption_t*)options,
2426 numOptions * sizeof(CAHeaderOption_t));
2429 CopyDevAddrToEndpoint(devAddr, &endpoint);
2434 OCConvertPayload(payload, &requestInfo.info.payload, &requestInfo.info.payloadSize))
2437 OC_LOG(ERROR, TAG, "Failed to create CBOR Payload");
2440 requestInfo.info.payloadFormat = CA_FORMAT_APPLICATION_CBOR;
2444 requestInfo.info.payload = NULL;
2445 requestInfo.info.payloadSize = 0;
2446 requestInfo.info.payloadFormat = CA_FORMAT_UNDEFINED;
2449 if (result != OC_STACK_OK)
2451 OC_LOG(ERROR, TAG, "CACreateEndpoint error");
2455 // prepare for response
2456 #ifdef WITH_PRESENCE
2457 if (method == OC_REST_PRESENCE)
2459 char *presenceUri = NULL;
2460 result = OCPreparePresence(&endpoint, resourceUri, &presenceUri);
2461 if (OC_STACK_OK != result)
2466 // Assign full presence uri as coap://ip:port/oic/ad to add to callback list.
2467 // Presence notification will form a canonical uri to
2468 // look for callbacks into the application.
2469 resourceUri = presenceUri;
2473 ttl = GetTicks(MAX_CB_TIMEOUT_SECONDS * MILLISECONDS_PER_SECOND);
2474 result = AddClientCB(&clientCB, cbData, token, tokenLength, &resHandle,
2475 method, devAddr, resourceUri, resourceType, ttl);
2476 if (OC_STACK_OK != result)
2481 devAddr = NULL; // Client CB list entry now owns it
2482 resourceUri = NULL; // Client CB list entry now owns it
2483 resourceType = NULL; // Client CB list entry now owns it
2486 result = OCSendRequest(&endpoint, &requestInfo);
2487 if (OC_STACK_OK != result)
2494 *handle = resHandle;
2498 if (result != OC_STACK_OK)
2500 OC_LOG(ERROR, TAG, "OCDoResource error");
2501 FindAndDeleteClientCB(clientCB);
2502 CADestroyToken(token);
2510 // This is the owner of the payload object, so we free it
2511 OCPayloadDestroy(payload);
2512 OICFree(requestInfo.info.payload);
2514 OICFree(resourceUri);
2515 OICFree(resourceType);
2516 OICFree(requestInfo.info.options);
2520 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
2524 * This ftn is implemented one of two ways in the case of observation:
2526 * 1. qos == OC_NON_CONFIRMABLE. When observe is unobserved..
2527 * Remove the callback associated on client side.
2528 * When the next notification comes in from server,
2529 * reply with RESET message to server.
2530 * Keep in mind that the server will react to RESET only
2531 * if the last notification was sent as CON
2533 * 2. qos == OC_CONFIRMABLE. When OCCancel is called,
2534 * and it is associated with an observe request
2535 * (i.e. ClientCB->method == OC_REST_OBSERVE || OC_REST_OBSERVE_ALL),
2536 * Send CON Observe request to server with
2537 * observe flag = OC_RESOURCE_OBSERVE_DEREGISTER.
2538 * Remove the callback associated on client side.
2540 OCStackResult ret = OC_STACK_OK;
2541 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2542 CARequestInfo_t requestInfo = {.method = CA_GET};
2546 return OC_STACK_INVALID_PARAM;
2549 ClientCB *clientCB = GetClientCB(NULL, 0, handle, NULL);
2552 OC_LOG(ERROR, TAG, "Callback not found. Called OCCancel on same resource twice?");
2553 return OC_STACK_ERROR;
2556 switch (clientCB->method)
2558 case OC_REST_OBSERVE:
2559 case OC_REST_OBSERVE_ALL:
2561 OC_LOG_V(INFO, TAG, "Canceling observation for resource %s",
2562 clientCB->requestUri);
2563 if (qos != OC_HIGH_QOS)
2565 FindAndDeleteClientCB(clientCB);
2569 OC_LOG(INFO, TAG, "Cancelling observation as CONFIRMABLE");
2571 requestInfo.info.type = qualityOfServiceToMessageType(qos);
2572 requestInfo.info.token = clientCB->token;
2573 requestInfo.info.tokenLength = clientCB->tokenLength;
2575 if (CreateObserveHeaderOption (&(requestInfo.info.options),
2576 options, numOptions, OC_OBSERVE_DEREGISTER) != OC_STACK_OK)
2578 return OC_STACK_ERROR;
2580 requestInfo.info.numOptions = numOptions + 1;
2581 requestInfo.info.resourceUri = OICStrdup (clientCB->requestUri);
2583 CopyDevAddrToEndpoint(clientCB->devAddr, &endpoint);
2585 ret = OCSendRequest(&endpoint, &requestInfo);
2587 if (requestInfo.info.options)
2589 OICFree (requestInfo.info.options);
2591 if (requestInfo.info.resourceUri)
2593 OICFree (requestInfo.info.resourceUri);
2598 #ifdef WITH_PRESENCE
2599 case OC_REST_PRESENCE:
2600 FindAndDeleteClientCB(clientCB);
2605 ret = OC_STACK_INVALID_METHOD;
2613 * @brief Register Persistent storage callback.
2614 * @param persistentStorageHandler [IN] Pointers to open, read, write, close & unlink handlers.
2616 * OC_STACK_OK - No errors; Success
2617 * OC_STACK_INVALID_PARAM - Invalid parameter
2619 OCStackResult OCRegisterPersistentStorageHandler(OCPersistentStorage* persistentStorageHandler)
2621 OC_LOG(INFO, TAG, "RegisterPersistentStorageHandler !!");
2622 if(!persistentStorageHandler)
2624 OC_LOG(ERROR, TAG, "The persistent storage handler is invalid");
2625 return OC_STACK_INVALID_PARAM;
2629 if( !persistentStorageHandler->open ||
2630 !persistentStorageHandler->close ||
2631 !persistentStorageHandler->read ||
2632 !persistentStorageHandler->unlink ||
2633 !persistentStorageHandler->write)
2635 OC_LOG(ERROR, TAG, "The persistent storage handler is invalid");
2636 return OC_STACK_INVALID_PARAM;
2639 return SRMRegisterPersistentStorageHandler(persistentStorageHandler);
2642 #ifdef WITH_PRESENCE
2644 OCStackResult OCProcessPresence()
2646 OCStackResult result = OC_STACK_OK;
2648 // the following line floods the log with messages that are irrelevant
2649 // to most purposes. Uncomment as needed.
2650 //OC_LOG(INFO, TAG, "Entering RequestPresence");
2651 ClientCB* cbNode = NULL;
2652 OCClientResponse clientResponse;
2653 OCStackApplicationResult cbResult = OC_STACK_DELETE_TRANSACTION;
2655 LL_FOREACH(cbList, cbNode)
2657 if (OC_REST_PRESENCE != cbNode->method || !cbNode->presence)
2662 uint32_t now = GetTicks(0);
2663 OC_LOG_V(DEBUG, TAG, "this TTL level %d",
2664 cbNode->presence->TTLlevel);
2665 OC_LOG_V(DEBUG, TAG, "current ticks %d", now);
2667 if (cbNode->presence->TTLlevel > PresenceTimeOutSize)
2672 if (cbNode->presence->TTLlevel < PresenceTimeOutSize)
2674 OC_LOG_V(DEBUG, TAG, "timeout ticks %d",
2675 cbNode->presence->timeOut[cbNode->presence->TTLlevel]);
2677 if (cbNode->presence->TTLlevel >= PresenceTimeOutSize)
2679 OC_LOG(DEBUG, TAG, "No more timeout ticks");
2681 clientResponse.sequenceNumber = 0;
2682 clientResponse.result = OC_STACK_PRESENCE_TIMEOUT;
2683 clientResponse.devAddr = *cbNode->devAddr;
2684 FixUpClientResponse(&clientResponse);
2685 clientResponse.payload = NULL;
2687 // Increment the TTLLevel (going to a next state), so we don't keep
2688 // sending presence notification to client.
2689 cbNode->presence->TTLlevel++;
2690 OC_LOG_V(DEBUG, TAG, "moving to TTL level %d",
2691 cbNode->presence->TTLlevel);
2693 cbResult = cbNode->callBack(cbNode->context, cbNode->handle, &clientResponse);
2694 if (cbResult == OC_STACK_DELETE_TRANSACTION)
2696 FindAndDeleteClientCB(cbNode);
2700 if (now < cbNode->presence->timeOut[cbNode->presence->TTLlevel])
2705 CAEndpoint_t endpoint = {.adapter = CA_DEFAULT_ADAPTER};
2706 CAInfo_t requestData = {.type = CA_MSG_CONFIRM};
2707 CARequestInfo_t requestInfo = {.method = CA_GET};
2709 OC_LOG(DEBUG, TAG, "time to test server presence");
2711 CopyDevAddrToEndpoint(cbNode->devAddr, &endpoint);
2713 requestData.type = CA_MSG_NONCONFIRM;
2714 requestData.token = cbNode->token;
2715 requestData.tokenLength = cbNode->tokenLength;
2716 requestData.resourceUri = OC_RSRVD_PRESENCE_URI;
2717 requestInfo.method = CA_GET;
2718 requestInfo.info = requestData;
2720 result = OCSendRequest(&endpoint, &requestInfo);
2721 if (OC_STACK_OK != result)
2726 cbNode->presence->TTLlevel++;
2727 OC_LOG_V(DEBUG, TAG, "moving to TTL level %d", cbNode->presence->TTLlevel);
2730 if (result != OC_STACK_OK)
2732 OC_LOG(ERROR, TAG, "OCProcessPresence error");
2737 #endif // WITH_PRESENCE
2739 OCStackResult OCProcess()
2741 #ifdef WITH_PRESENCE
2742 OCProcessPresence();
2744 CAHandleRequestResponse();
2746 #ifdef ROUTING_GATEWAY
2752 #ifdef WITH_PRESENCE
2753 OCStackResult OCStartPresence(const uint32_t ttl)
2755 uint8_t tokenLength = CA_MAX_TOKEN_LEN;
2756 OCChangeResourceProperty(
2757 &(((OCResource *)presenceResource.handle)->resourceProperties),
2760 if (OC_MAX_PRESENCE_TTL_SECONDS < ttl)
2762 presenceResource.presenceTTL = OC_MAX_PRESENCE_TTL_SECONDS;
2763 OC_LOG(INFO, TAG, "Setting Presence TTL to max value");
2767 presenceResource.presenceTTL = OC_DEFAULT_PRESENCE_TTL_SECONDS;
2768 OC_LOG(INFO, TAG, "Setting Presence TTL to default value");
2772 presenceResource.presenceTTL = ttl;
2774 OC_LOG_V(DEBUG, TAG, "Presence TTL is %lu seconds", presenceResource.presenceTTL);
2776 if (OC_PRESENCE_UNINITIALIZED == presenceState)
2778 presenceState = OC_PRESENCE_INITIALIZED;
2780 OCDevAddr devAddr = { OC_DEFAULT_ADAPTER };
2782 CAToken_t caToken = NULL;
2783 CAResult_t caResult = CAGenerateToken(&caToken, tokenLength);
2784 if (caResult != CA_STATUS_OK)
2786 OC_LOG(ERROR, TAG, "CAGenerateToken error");
2787 CADestroyToken(caToken);
2788 return OC_STACK_ERROR;
2791 AddObserver(OC_RSRVD_PRESENCE_URI, NULL, 0, caToken, tokenLength,
2792 (OCResource *)presenceResource.handle, OC_LOW_QOS, OC_FORMAT_UNDEFINED, &devAddr);
2793 CADestroyToken(caToken);
2796 // Each time OCStartPresence is called
2797 // a different random 32-bit integer number is used
2798 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
2800 return SendPresenceNotification(((OCResource *)presenceResource.handle)->rsrcType,
2801 OC_PRESENCE_TRIGGER_CREATE);
2804 OCStackResult OCStopPresence()
2806 OCStackResult result = OC_STACK_ERROR;
2808 if(presenceResource.handle)
2810 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
2812 // make resource inactive
2813 result = OCChangeResourceProperty(
2814 &(((OCResource *) presenceResource.handle)->resourceProperties),
2818 if(result != OC_STACK_OK)
2821 "Changing the presence resource properties to ACTIVE not successful");
2825 return SendStopNotification();
2829 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler,
2830 void* callbackParameter)
2832 defaultDeviceHandler = entityHandler;
2833 defaultDeviceHandlerCallbackParameter = callbackParameter;
2838 OCStackResult OCSetPlatformInfo(OCPlatformInfo platformInfo)
2840 OC_LOG(INFO, TAG, "Entering OCSetPlatformInfo");
2842 if(myStackMode == OC_SERVER || myStackMode == OC_CLIENT_SERVER || myStackMode == OC_GATEWAY)
2844 if (validatePlatformInfo(platformInfo))
2846 return SavePlatformInfo(platformInfo);
2850 return OC_STACK_INVALID_PARAM;
2855 return OC_STACK_ERROR;
2859 OCStackResult OCSetDeviceInfo(OCDeviceInfo deviceInfo)
2861 OC_LOG(INFO, TAG, "Entering OCSetDeviceInfo");
2863 if (!deviceInfo.deviceName || deviceInfo.deviceName[0] == '\0')
2865 OC_LOG(ERROR, TAG, "Null or empty device name.");
2866 return OC_STACK_INVALID_PARAM;
2869 return SaveDeviceInfo(deviceInfo);
2872 OCStackResult OCCreateResource(OCResourceHandle *handle,
2873 const char *resourceTypeName,
2874 const char *resourceInterfaceName,
2875 const char *uri, OCEntityHandler entityHandler,
2876 void* callbackParam,
2877 uint8_t resourceProperties)
2880 OCResource *pointer = NULL;
2881 OCStackResult result = OC_STACK_ERROR;
2883 OC_LOG(INFO, TAG, "Entering OCCreateResource");
2885 if(myStackMode == OC_CLIENT)
2887 return OC_STACK_INVALID_PARAM;
2889 // Validate parameters
2890 if(!uri || uri[0]=='\0' || strlen(uri)>=MAX_URI_LENGTH )
2892 OC_LOG(ERROR, TAG, "URI is empty or too long");
2893 return OC_STACK_INVALID_URI;
2895 // Is it presented during resource discovery?
2896 if (!handle || !resourceTypeName || resourceTypeName[0] == '\0' )
2898 OC_LOG(ERROR, TAG, "Input parameter is NULL");
2899 return OC_STACK_INVALID_PARAM;
2902 if(!resourceInterfaceName || strlen(resourceInterfaceName) == 0)
2904 resourceInterfaceName = OC_RSRVD_INTERFACE_DEFAULT;
2907 // Make sure resourceProperties bitmask has allowed properties specified
2908 if (resourceProperties
2909 > (OC_ACTIVE | OC_DISCOVERABLE | OC_OBSERVABLE | OC_SLOW | OC_SECURE |
2910 OC_EXPLICIT_DISCOVERABLE))
2912 OC_LOG(ERROR, TAG, "Invalid property");
2913 return OC_STACK_INVALID_PARAM;
2916 // If the headResource is NULL, then no resources have been created...
2917 pointer = headResource;
2920 // At least one resources is in the resource list, so we need to search for
2921 // repeated URLs, which are not allowed. If a repeat is found, exit with an error
2924 if (strncmp(uri, pointer->uri, MAX_URI_LENGTH) == 0)
2926 OC_LOG_V(ERROR, TAG, "Resource %s already exists", uri);
2927 return OC_STACK_INVALID_PARAM;
2929 pointer = pointer->next;
2932 // Create the pointer and insert it into the resource list
2933 pointer = (OCResource *) OICCalloc(1, sizeof(OCResource));
2936 result = OC_STACK_NO_MEMORY;
2939 pointer->sequenceNum = OC_OFFSET_SEQUENCE_NUMBER;
2941 insertResource(pointer);
2944 pointer->uri = OICStrdup(uri);
2947 result = OC_STACK_NO_MEMORY;
2951 // Set properties. Set OC_ACTIVE
2952 pointer->resourceProperties = (OCResourceProperty) (resourceProperties
2955 // Add the resourcetype to the resource
2956 result = BindResourceTypeToResource(pointer, resourceTypeName);
2957 if (result != OC_STACK_OK)
2959 OC_LOG(ERROR, TAG, "Error adding resourcetype");
2963 // Add the resourceinterface to the resource
2964 result = BindResourceInterfaceToResource(pointer, resourceInterfaceName);
2965 if (result != OC_STACK_OK)
2967 OC_LOG(ERROR, TAG, "Error adding resourceinterface");
2971 // If an entity handler has been passed, attach it to the newly created
2972 // resource. Otherwise, set the default entity handler.
2975 pointer->entityHandler = entityHandler;
2976 pointer->entityHandlerCallbackParam = callbackParam;
2980 pointer->entityHandler = defaultResourceEHandler;
2981 pointer->entityHandlerCallbackParam = NULL;
2985 result = OC_STACK_OK;
2987 #ifdef WITH_PRESENCE
2988 if (presenceResource.handle)
2990 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
2991 SendPresenceNotification(pointer->rsrcType, OC_PRESENCE_TRIGGER_CREATE);
2995 if (result != OC_STACK_OK)
2997 // Deep delete of resource and other dynamic elements that it contains
2998 deleteResource(pointer);
3004 OCStackResult OCBindResource(
3005 OCResourceHandle collectionHandle, OCResourceHandle resourceHandle)
3007 OCResource *resource = NULL;
3010 OC_LOG(INFO, TAG, "Entering OCBindResource");
3012 // Validate parameters
3013 VERIFY_NON_NULL(collectionHandle, ERROR, OC_STACK_ERROR);
3014 VERIFY_NON_NULL(resourceHandle, ERROR, OC_STACK_ERROR);
3015 // Container cannot contain itself
3016 if (collectionHandle == resourceHandle)
3018 OC_LOG(ERROR, TAG, "Added handle equals collection handle");
3019 return OC_STACK_INVALID_PARAM;
3022 // Use the handle to find the resource in the resource linked list
3023 resource = findResource((OCResource *) collectionHandle);
3026 OC_LOG(ERROR, TAG, "Collection handle not found");
3027 return OC_STACK_INVALID_PARAM;
3030 // Look for an open slot to add add the child resource.
3031 // If found, add it and return success
3032 for (i = 0; i < MAX_CONTAINED_RESOURCES; i++)
3034 if (!resource->rsrcResources[i])
3036 resource->rsrcResources[i] = (OCResource *) resourceHandle;
3037 OC_LOG(INFO, TAG, "resource bound");
3039 #ifdef WITH_PRESENCE
3040 if (presenceResource.handle)
3042 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3043 SendPresenceNotification(((OCResource *) resourceHandle)->rsrcType,
3044 OC_PRESENCE_TRIGGER_CHANGE);
3052 // Unable to add resourceHandle, so return error
3053 return OC_STACK_ERROR;
3056 OCStackResult OCUnBindResource(
3057 OCResourceHandle collectionHandle, OCResourceHandle resourceHandle)
3059 OCResource *resource = NULL;
3062 OC_LOG(INFO, TAG, "Entering OCUnBindResource");
3064 // Validate parameters
3065 VERIFY_NON_NULL(collectionHandle, ERROR, OC_STACK_ERROR);
3066 VERIFY_NON_NULL(resourceHandle, ERROR, OC_STACK_ERROR);
3067 // Container cannot contain itself
3068 if (collectionHandle == resourceHandle)
3070 OC_LOG(ERROR, TAG, "removing handle equals collection handle");
3071 return OC_STACK_INVALID_PARAM;
3074 // Use the handle to find the resource in the resource linked list
3075 resource = findResource((OCResource *) collectionHandle);
3078 OC_LOG(ERROR, TAG, "Collection handle not found");
3079 return OC_STACK_INVALID_PARAM;
3082 // Look for an open slot to add add the child resource.
3083 // If found, add it and return success
3084 for (i = 0; i < MAX_CONTAINED_RESOURCES; i++)
3086 if (resourceHandle == resource->rsrcResources[i])
3088 resource->rsrcResources[i] = (OCResource *) NULL;
3089 OC_LOG(INFO, TAG, "resource unbound");
3091 // Send notification when resource is unbounded successfully.
3092 #ifdef WITH_PRESENCE
3093 if (presenceResource.handle)
3095 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3096 SendPresenceNotification(((OCResource *) resourceHandle)->rsrcType,
3097 OC_PRESENCE_TRIGGER_CHANGE);
3104 OC_LOG(INFO, TAG, "resource not found in collection");
3106 // Unable to add resourceHandle, so return error
3107 return OC_STACK_ERROR;
3110 // Precondition is that the parameter has been checked to not equal NULL.
3111 static bool ValidateResourceTypeInterface(const char *resourceItemName)
3113 if (resourceItemName[0] < 'a' || resourceItemName[0] > 'z')
3119 while (resourceItemName[index] != '\0')
3121 if (resourceItemName[index] != '.' &&
3122 resourceItemName[index] != '-' &&
3123 (resourceItemName[index] < 'a' || resourceItemName[index] > 'z') &&
3124 (resourceItemName[index] < '0' || resourceItemName[index] > '9'))
3133 OCStackResult BindResourceTypeToResource(OCResource* resource,
3134 const char *resourceTypeName)
3136 OCResourceType *pointer = NULL;
3138 OCStackResult result = OC_STACK_ERROR;
3140 VERIFY_NON_NULL(resourceTypeName, ERROR, OC_STACK_INVALID_PARAM);
3142 if (!ValidateResourceTypeInterface(resourceTypeName))
3144 OC_LOG(ERROR, TAG, "resource type illegal (see RFC 6690)");
3145 return OC_STACK_INVALID_PARAM;
3148 pointer = (OCResourceType *) OICCalloc(1, sizeof(OCResourceType));
3151 result = OC_STACK_NO_MEMORY;
3155 str = OICStrdup(resourceTypeName);
3158 result = OC_STACK_NO_MEMORY;
3161 pointer->resourcetypename = str;
3163 insertResourceType(resource, pointer);
3164 result = OC_STACK_OK;
3167 if (result != OC_STACK_OK)
3176 OCStackResult BindResourceInterfaceToResource(OCResource* resource,
3177 const char *resourceInterfaceName)
3179 OCResourceInterface *pointer = NULL;
3181 OCStackResult result = OC_STACK_ERROR;
3183 VERIFY_NON_NULL(resourceInterfaceName, ERROR, OC_STACK_INVALID_PARAM);
3185 if (!ValidateResourceTypeInterface(resourceInterfaceName))
3187 OC_LOG(ERROR, TAG, "resource /interface illegal (see RFC 6690)");
3188 return OC_STACK_INVALID_PARAM;
3191 OC_LOG_V(INFO, TAG, "Binding %s interface to %s", resourceInterfaceName, resource->uri);
3193 pointer = (OCResourceInterface *) OICCalloc(1, sizeof(OCResourceInterface));
3196 result = OC_STACK_NO_MEMORY;
3200 str = OICStrdup(resourceInterfaceName);
3203 result = OC_STACK_NO_MEMORY;
3206 pointer->name = str;
3208 // Bind the resourceinterface to the resource
3209 insertResourceInterface(resource, pointer);
3211 result = OC_STACK_OK;
3214 if (result != OC_STACK_OK)
3223 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
3224 const char *resourceTypeName)
3227 OCStackResult result = OC_STACK_ERROR;
3228 OCResource *resource = NULL;
3230 resource = findResource((OCResource *) handle);
3233 OC_LOG(ERROR, TAG, "Resource not found");
3234 return OC_STACK_ERROR;
3237 result = BindResourceTypeToResource(resource, resourceTypeName);
3239 #ifdef WITH_PRESENCE
3240 if(presenceResource.handle)
3242 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3243 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3250 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
3251 const char *resourceInterfaceName)
3254 OCStackResult result = OC_STACK_ERROR;
3255 OCResource *resource = NULL;
3257 resource = findResource((OCResource *) handle);
3260 OC_LOG(ERROR, TAG, "Resource not found");
3261 return OC_STACK_ERROR;
3264 result = BindResourceInterfaceToResource(resource, resourceInterfaceName);
3266 #ifdef WITH_PRESENCE
3267 if (presenceResource.handle)
3269 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3270 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3277 OCStackResult OCGetNumberOfResources(uint8_t *numResources)
3279 OCResource *pointer = headResource;
3281 VERIFY_NON_NULL(numResources, ERROR, OC_STACK_INVALID_PARAM);
3285 *numResources = *numResources + 1;
3286 pointer = pointer->next;
3291 OCResourceHandle OCGetResourceHandle(uint8_t index)
3293 OCResource *pointer = headResource;
3295 for( uint8_t i = 0; i < index && pointer; ++i)
3297 pointer = pointer->next;
3299 return (OCResourceHandle) pointer;
3302 OCStackResult OCDeleteResource(OCResourceHandle handle)
3306 OC_LOG(ERROR, TAG, "Invalid handle for deletion");
3307 return OC_STACK_INVALID_PARAM;
3310 OCResource *resource = findResource((OCResource *) handle);
3311 if (resource == NULL)
3313 OC_LOG(ERROR, TAG, "Resource not found");
3314 return OC_STACK_NO_RESOURCE;
3317 if (deleteResource((OCResource *) handle) != OC_STACK_OK)
3319 OC_LOG(ERROR, TAG, "Error deleting resource");
3320 return OC_STACK_ERROR;
3326 const char *OCGetResourceUri(OCResourceHandle handle)
3328 OCResource *resource = NULL;
3330 resource = findResource((OCResource *) handle);
3333 return resource->uri;
3335 return (const char *) NULL;
3338 OCResourceProperty OCGetResourceProperties(OCResourceHandle handle)
3340 OCResource *resource = NULL;
3342 resource = findResource((OCResource *) handle);
3345 return resource->resourceProperties;
3347 return (OCResourceProperty)-1;
3350 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle,
3351 uint8_t *numResourceTypes)
3353 OCResource *resource = NULL;
3354 OCResourceType *pointer = NULL;
3356 VERIFY_NON_NULL(numResourceTypes, ERROR, OC_STACK_INVALID_PARAM);
3357 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3359 *numResourceTypes = 0;
3361 resource = findResource((OCResource *) handle);
3364 pointer = resource->rsrcType;
3367 *numResourceTypes = *numResourceTypes + 1;
3368 pointer = pointer->next;
3374 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index)
3376 OCResourceType *resourceType = NULL;
3378 resourceType = findResourceTypeAtIndex(handle, index);
3381 return resourceType->resourcetypename;
3383 return (const char *) NULL;
3386 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle,
3387 uint8_t *numResourceInterfaces)
3389 OCResourceInterface *pointer = NULL;
3390 OCResource *resource = NULL;
3392 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3393 VERIFY_NON_NULL(numResourceInterfaces, ERROR, OC_STACK_INVALID_PARAM);
3395 *numResourceInterfaces = 0;
3396 resource = findResource((OCResource *) handle);
3399 pointer = resource->rsrcInterface;
3402 *numResourceInterfaces = *numResourceInterfaces + 1;
3403 pointer = pointer->next;
3409 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index)
3411 OCResourceInterface *resourceInterface = NULL;
3413 resourceInterface = findResourceInterfaceAtIndex(handle, index);
3414 if (resourceInterface)
3416 return resourceInterface->name;
3418 return (const char *) NULL;
3421 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle,
3424 OCResource *resource = NULL;
3426 if (index >= MAX_CONTAINED_RESOURCES)
3431 resource = findResource((OCResource *) collectionHandle);
3437 return resource->rsrcResources[index];
3440 OCStackResult OCBindResourceHandler(OCResourceHandle handle,
3441 OCEntityHandler entityHandler,
3442 void* callbackParam)
3444 OCResource *resource = NULL;
3446 // Validate parameters
3447 VERIFY_NON_NULL(handle, ERROR, OC_STACK_INVALID_PARAM);
3449 // Use the handle to find the resource in the resource linked list
3450 resource = findResource((OCResource *)handle);
3453 OC_LOG(ERROR, TAG, "Resource not found");
3454 return OC_STACK_ERROR;
3458 resource->entityHandler = entityHandler;
3459 resource->entityHandlerCallbackParam = callbackParam;
3461 #ifdef WITH_PRESENCE
3462 if (presenceResource.handle)
3464 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3465 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_CHANGE);
3472 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle)
3474 OCResource *resource = NULL;
3476 resource = findResource((OCResource *)handle);
3479 OC_LOG(ERROR, TAG, "Resource not found");
3484 return resource->entityHandler;
3487 void incrementSequenceNumber(OCResource * resPtr)
3489 // Increment the sequence number
3490 resPtr->sequenceNum += 1;
3491 if (resPtr->sequenceNum == MAX_SEQUENCE_NUMBER)
3493 resPtr->sequenceNum = OC_OFFSET_SEQUENCE_NUMBER+1;
3498 #ifdef WITH_PRESENCE
3499 OCStackResult SendPresenceNotification(OCResourceType *resourceType,
3500 OCPresenceTrigger trigger)
3502 OCResource *resPtr = NULL;
3503 OCStackResult result = OC_STACK_ERROR;
3504 OCMethod method = OC_REST_PRESENCE;
3505 uint32_t maxAge = 0;
3506 resPtr = findResource((OCResource *) presenceResource.handle);
3509 return OC_STACK_NO_RESOURCE;
3512 if((((OCResource *) presenceResource.handle)->resourceProperties) & OC_ACTIVE)
3514 maxAge = presenceResource.presenceTTL;
3516 result = SendAllObserverNotification(method, resPtr, maxAge,
3517 trigger, resourceType, OC_LOW_QOS);
3523 OCStackResult SendStopNotification()
3525 OCResource *resPtr = NULL;
3526 OCStackResult result = OC_STACK_ERROR;
3527 OCMethod method = OC_REST_PRESENCE;
3528 resPtr = findResource((OCResource *) presenceResource.handle);
3531 return OC_STACK_NO_RESOURCE;
3534 // maxAge is 0. ResourceType is NULL.
3535 result = SendAllObserverNotification(method, resPtr, 0, OC_PRESENCE_TRIGGER_DELETE,
3541 #endif // WITH_PRESENCE
3542 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos)
3544 OCResource *resPtr = NULL;
3545 OCStackResult result = OC_STACK_ERROR;
3546 OCMethod method = OC_REST_NOMETHOD;
3547 uint32_t maxAge = 0;
3549 OC_LOG(INFO, TAG, "Notifying all observers");
3550 #ifdef WITH_PRESENCE
3551 if(handle == presenceResource.handle)
3555 #endif // WITH_PRESENCE
3556 VERIFY_NON_NULL(handle, ERROR, OC_STACK_ERROR);
3558 // Verify that the resource exists
3559 resPtr = findResource ((OCResource *) handle);
3562 return OC_STACK_NO_RESOURCE;
3566 //only increment in the case of regular observing (not presence)
3567 incrementSequenceNumber(resPtr);
3568 method = OC_REST_OBSERVE;
3569 maxAge = MAX_OBSERVE_AGE;
3570 #ifdef WITH_PRESENCE
3571 result = SendAllObserverNotification (method, resPtr, maxAge,
3572 OC_PRESENCE_TRIGGER_DELETE, NULL, qos);
3574 result = SendAllObserverNotification (method, resPtr, maxAge, qos);
3581 OCNotifyListOfObservers (OCResourceHandle handle,
3582 OCObservationId *obsIdList,
3583 uint8_t numberOfIds,
3584 const OCRepPayload *payload,
3585 OCQualityOfService qos)
3587 OC_LOG(INFO, TAG, "Entering OCNotifyListOfObservers");
3589 OCResource *resPtr = NULL;
3590 //TODO: we should allow the server to define this
3591 uint32_t maxAge = MAX_OBSERVE_AGE;
3593 VERIFY_NON_NULL(handle, ERROR, OC_STACK_ERROR);
3594 VERIFY_NON_NULL(obsIdList, ERROR, OC_STACK_ERROR);
3595 VERIFY_NON_NULL(payload, ERROR, OC_STACK_ERROR);
3597 resPtr = findResource ((OCResource *) handle);
3598 if (NULL == resPtr || myStackMode == OC_CLIENT)
3600 return OC_STACK_NO_RESOURCE;
3604 incrementSequenceNumber(resPtr);
3606 return (SendListObserverNotification(resPtr, obsIdList, numberOfIds,
3607 payload, maxAge, qos));
3610 OCStackResult OCDoResponse(OCEntityHandlerResponse *ehResponse)
3612 OCStackResult result = OC_STACK_ERROR;
3613 OCServerRequest *serverRequest = NULL;
3615 OC_LOG(INFO, TAG, "Entering OCDoResponse");
3617 // Validate input parameters
3618 VERIFY_NON_NULL(ehResponse, ERROR, OC_STACK_INVALID_PARAM);
3619 VERIFY_NON_NULL(ehResponse->requestHandle, ERROR, OC_STACK_INVALID_PARAM);
3622 // Get pointer to request info
3623 serverRequest = GetServerRequestUsingHandle((OCServerRequest *)ehResponse->requestHandle);
3626 // response handler in ocserverrequest.c. Usually HandleSingleResponse.
3627 result = serverRequest->ehResponseHandler(ehResponse);
3633 //-----------------------------------------------------------------------------
3634 // Private internal function definitions
3635 //-----------------------------------------------------------------------------
3636 static OCDoHandle GenerateInvocationHandle()
3638 OCDoHandle handle = NULL;
3639 // Generate token here, it will be deleted when the transaction is deleted
3640 handle = (OCDoHandle) OICMalloc(sizeof(uint8_t[CA_MAX_TOKEN_LEN]));
3643 OCFillRandomMem((uint8_t*)handle, sizeof(uint8_t[CA_MAX_TOKEN_LEN]));
3649 #ifdef WITH_PRESENCE
3650 OCStackResult OCChangeResourceProperty(OCResourceProperty * inputProperty,
3651 OCResourceProperty resourceProperties, uint8_t enable)
3655 return OC_STACK_INVALID_PARAM;
3657 if (resourceProperties
3658 > (OC_ACTIVE | OC_DISCOVERABLE | OC_OBSERVABLE | OC_SLOW))
3660 OC_LOG(ERROR, TAG, "Invalid property");
3661 return OC_STACK_INVALID_PARAM;
3665 *inputProperty = (OCResourceProperty) (*inputProperty & ~(resourceProperties));
3669 *inputProperty = (OCResourceProperty) (*inputProperty | resourceProperties);
3675 OCStackResult initResources()
3677 OCStackResult result = OC_STACK_OK;
3679 headResource = NULL;
3680 tailResource = NULL;
3681 // Init Virtual Resources
3682 #ifdef WITH_PRESENCE
3683 presenceResource.presenceTTL = OC_DEFAULT_PRESENCE_TTL_SECONDS;
3685 result = OCCreateResource(&presenceResource.handle,
3686 OC_RSRVD_RESOURCE_TYPE_PRESENCE,
3688 OC_RSRVD_PRESENCE_URI,
3692 //make resource inactive
3693 result = OCChangeResourceProperty(
3694 &(((OCResource *) presenceResource.handle)->resourceProperties),
3698 if (result == OC_STACK_OK)
3700 result = SRMInitSecureResources();
3706 void insertResource(OCResource *resource)
3710 headResource = resource;
3711 tailResource = resource;
3715 tailResource->next = resource;
3716 tailResource = resource;
3718 resource->next = NULL;
3721 OCResource *findResource(OCResource *resource)
3723 OCResource *pointer = headResource;
3727 if (pointer == resource)
3731 pointer = pointer->next;
3736 void deleteAllResources()
3738 OCResource *pointer = headResource;
3739 OCResource *temp = NULL;
3743 temp = pointer->next;
3744 #ifdef WITH_PRESENCE
3745 if (pointer != (OCResource *) presenceResource.handle)
3747 #endif // WITH_PRESENCE
3748 deleteResource(pointer);
3749 #ifdef WITH_PRESENCE
3751 #endif // WITH_PRESENCE
3755 SRMDeInitSecureResources();
3757 #ifdef WITH_PRESENCE
3758 // Ensure that the last resource to be deleted is the presence resource. This allows for all
3759 // presence notification attributed to their deletion to be processed.
3760 deleteResource((OCResource *) presenceResource.handle);
3761 #endif // WITH_PRESENCE
3764 OCStackResult deleteResource(OCResource *resource)
3766 OCResource *prev = NULL;
3767 OCResource *temp = NULL;
3770 OC_LOG(DEBUG,TAG,"resource is NULL");
3771 return OC_STACK_INVALID_PARAM;
3774 OC_LOG_V (INFO, TAG, "Deleting resource %s", resource->uri);
3776 temp = headResource;
3779 if (temp == resource)
3781 // Invalidate all Resource Properties.
3782 resource->resourceProperties = (OCResourceProperty) 0;
3783 #ifdef WITH_PRESENCE
3784 if(resource != (OCResource *) presenceResource.handle)
3786 #endif // WITH_PRESENCE
3787 OCNotifyAllObservers((OCResourceHandle)resource, OC_HIGH_QOS);
3788 #ifdef WITH_PRESENCE
3791 if(presenceResource.handle)
3793 ((OCResource *)presenceResource.handle)->sequenceNum = OCGetRandom();
3794 SendPresenceNotification(resource->rsrcType, OC_PRESENCE_TRIGGER_DELETE);
3797 // Only resource in list.
3798 if (temp == headResource && temp == tailResource)
3800 headResource = NULL;
3801 tailResource = NULL;
3804 else if (temp == headResource)
3806 headResource = temp->next;
3809 else if (temp == tailResource)
3811 tailResource = prev;
3812 tailResource->next = NULL;
3816 prev->next = temp->next;
3819 deleteResourceElements(temp);
3830 return OC_STACK_ERROR;
3833 void deleteResourceElements(OCResource *resource)
3840 OICFree(resource->uri);
3841 deleteResourceType(resource->rsrcType);
3842 deleteResourceInterface(resource->rsrcInterface);
3845 void deleteResourceType(OCResourceType *resourceType)
3847 OCResourceType *pointer = resourceType;
3848 OCResourceType *next = NULL;
3852 next = pointer->next;
3853 OICFree(pointer->resourcetypename);
3859 void deleteResourceInterface(OCResourceInterface *resourceInterface)
3861 OCResourceInterface *pointer = resourceInterface;
3862 OCResourceInterface *next = NULL;
3866 next = pointer->next;
3867 OICFree(pointer->name);
3873 void insertResourceType(OCResource *resource, OCResourceType *resourceType)
3875 OCResourceType *pointer = NULL;
3876 OCResourceType *previous = NULL;
3877 if (!resource || !resourceType)
3881 // resource type list is empty.
3882 else if (!resource->rsrcType)
3884 resource->rsrcType = resourceType;
3888 pointer = resource->rsrcType;
3892 if (!strcmp(resourceType->resourcetypename, pointer->resourcetypename))
3894 OC_LOG_V(INFO, TAG, "Type %s already exists", resourceType->resourcetypename);
3895 OICFree(resourceType->resourcetypename);
3896 OICFree(resourceType);
3900 pointer = pointer->next;
3902 previous->next = resourceType;
3904 resourceType->next = NULL;
3906 OC_LOG_V(INFO, TAG, "Added type %s to %s", resourceType->resourcetypename, resource->uri);
3909 OCResourceType *findResourceTypeAtIndex(OCResourceHandle handle, uint8_t index)
3911 OCResource *resource = NULL;
3912 OCResourceType *pointer = NULL;
3914 // Find the specified resource
3915 resource = findResource((OCResource *) handle);
3921 // Make sure a resource has a resourcetype
3922 if (!resource->rsrcType)
3927 // Iterate through the list
3928 pointer = resource->rsrcType;
3929 for(uint8_t i = 0; i< index && pointer; ++i)
3931 pointer = pointer->next;
3936 OCResourceType *findResourceType(OCResourceType * resourceTypeList, const char * resourceTypeName)
3938 if(resourceTypeList && resourceTypeName)
3940 OCResourceType * rtPointer = resourceTypeList;
3941 while(resourceTypeName && rtPointer)
3943 if(rtPointer->resourcetypename &&
3944 strcmp(resourceTypeName, (const char *)
3945 (rtPointer->resourcetypename)) == 0)
3949 rtPointer = rtPointer->next;
3957 * Insert a new interface into interface linked list only if not already present.
3958 * If alredy present, 2nd arg is free'd.
3959 * Default interface will always be first if present.
3961 void insertResourceInterface(OCResource *resource, OCResourceInterface *newInterface)
3963 OCResourceInterface *pointer = NULL;
3964 OCResourceInterface *previous = NULL;
3966 newInterface->next = NULL;
3968 OCResourceInterface **firstInterface = &(resource->rsrcInterface);
3970 if (!*firstInterface)
3972 *firstInterface = newInterface;
3974 else if (strcmp(newInterface->name, OC_RSRVD_INTERFACE_DEFAULT) == 0)
3976 if (strcmp((*firstInterface)->name, OC_RSRVD_INTERFACE_DEFAULT) == 0)
3978 OICFree(newInterface->name);
3979 OICFree(newInterface);
3984 newInterface->next = *firstInterface;
3985 *firstInterface = newInterface;
3990 pointer = *firstInterface;
3993 if (strcmp(newInterface->name, pointer->name) == 0)
3995 OICFree(newInterface->name);
3996 OICFree(newInterface);
4000 pointer = pointer->next;
4002 previous->next = newInterface;
4006 OCResourceInterface *findResourceInterfaceAtIndex(OCResourceHandle handle,
4009 OCResource *resource = NULL;
4010 OCResourceInterface *pointer = NULL;
4012 // Find the specified resource
4013 resource = findResource((OCResource *) handle);
4019 // Make sure a resource has a resourceinterface
4020 if (!resource->rsrcInterface)
4025 // Iterate through the list
4026 pointer = resource->rsrcInterface;
4028 for (uint8_t i = 0; i < index && pointer; ++i)
4030 pointer = pointer->next;
4036 * This function splits the uri using the '?' delimiter.
4037 * "uriWithoutQuery" is the block of characters between the beginning
4038 * till the delimiter or '\0' which ever comes first.
4039 * "query" is whatever is to the right of the delimiter if present.
4040 * No delimiter sets the query to NULL.
4041 * If either are present, they will be malloc'ed into the params 2, 3.
4042 * The first param, *uri is left untouched.
4044 * NOTE: This function does not account for whitespace at the end of the uri NOR
4045 * malformed uri's with '??'. Whitespace at the end will be assumed to be
4046 * part of the query.
4048 OCStackResult getQueryFromUri(const char * uri, char** query, char ** uriWithoutQuery)
4052 return OC_STACK_INVALID_URI;
4054 if(!query || !uriWithoutQuery)
4056 return OC_STACK_INVALID_PARAM;
4060 *uriWithoutQuery = NULL;
4062 size_t uriWithoutQueryLen = 0;
4063 size_t queryLen = 0;
4064 size_t uriLen = strlen(uri);
4066 char *pointerToDelimiter = strstr(uri, "?");
4068 uriWithoutQueryLen = pointerToDelimiter == NULL ? uriLen : (size_t)(pointerToDelimiter - uri);
4069 queryLen = pointerToDelimiter == NULL ? 0 : uriLen - uriWithoutQueryLen - 1;
4071 if (uriWithoutQueryLen)
4073 *uriWithoutQuery = (char *) OICCalloc(uriWithoutQueryLen + 1, 1);
4074 if (!*uriWithoutQuery)
4078 OICStrcpy(*uriWithoutQuery, uriWithoutQueryLen +1, uri);
4082 *query = (char *) OICCalloc(queryLen + 1, 1);
4085 OICFree(*uriWithoutQuery);
4086 *uriWithoutQuery = NULL;
4089 OICStrcpy(*query, queryLen + 1, pointerToDelimiter + 1);
4095 return OC_STACK_NO_MEMORY;
4098 const OicUuid_t* OCGetServerInstanceID(void)
4100 static bool generated = false;
4101 static OicUuid_t sid;
4107 if (GetDoxmDeviceID(&sid) != OC_STACK_OK)
4109 OC_LOG(FATAL, TAG, "Generate UUID for Server Instance failed!");
4116 const char* OCGetServerInstanceIDString(void)
4118 static bool generated = false;
4119 static char sidStr[UUID_STRING_SIZE];
4126 const OicUuid_t* sid = OCGetServerInstanceID();
4128 if(OCConvertUuidToString(sid->id, sidStr) != RAND_UUID_OK)
4130 OC_LOG(FATAL, TAG, "Generate UUID String for Server Instance failed!");
4138 CAResult_t OCSelectNetwork()
4140 CAResult_t retResult = CA_STATUS_FAILED;
4141 CAResult_t caResult = CA_STATUS_OK;
4143 CATransportAdapter_t connTypes[] = {
4145 CA_ADAPTER_RFCOMM_BTEDR,
4146 CA_ADAPTER_GATT_BTLE
4149 ,CA_ADAPTER_REMOTE_ACCESS
4152 int numConnTypes = sizeof(connTypes)/sizeof(connTypes[0]);
4154 for(int i = 0; i<numConnTypes; i++)
4156 // Ignore CA_NOT_SUPPORTED error. The CA Layer may have not compiled in the interface.
4157 if(caResult == CA_STATUS_OK || caResult == CA_NOT_SUPPORTED)
4159 caResult = CASelectNetwork(connTypes[i]);
4160 if(caResult == CA_STATUS_OK)
4162 retResult = CA_STATUS_OK;
4167 if(retResult != CA_STATUS_OK)
4169 return caResult; // Returns error of appropriate transport that failed fatally.
4175 OCStackResult CAResultToOCResult(CAResult_t caResult)
4181 case CA_STATUS_INVALID_PARAM:
4182 return OC_STACK_INVALID_PARAM;
4183 case CA_ADAPTER_NOT_ENABLED:
4184 return OC_STACK_ADAPTER_NOT_ENABLED;
4185 case CA_SERVER_STARTED_ALREADY:
4187 case CA_SERVER_NOT_STARTED:
4188 return OC_STACK_ERROR;
4189 case CA_DESTINATION_NOT_REACHABLE:
4190 return OC_STACK_COMM_ERROR;
4191 case CA_SOCKET_OPERATION_FAILED:
4192 return OC_STACK_COMM_ERROR;
4193 case CA_SEND_FAILED:
4194 return OC_STACK_COMM_ERROR;
4195 case CA_RECEIVE_FAILED:
4196 return OC_STACK_COMM_ERROR;
4197 case CA_MEMORY_ALLOC_FAILED:
4198 return OC_STACK_NO_MEMORY;
4199 case CA_REQUEST_TIMEOUT:
4200 return OC_STACK_TIMEOUT;
4201 case CA_DESTINATION_DISCONNECTED:
4202 return OC_STACK_COMM_ERROR;
4203 case CA_STATUS_FAILED:
4204 return OC_STACK_ERROR;
4205 case CA_NOT_SUPPORTED:
4206 return OC_STACK_NOTIMPL;
4208 return OC_STACK_ERROR;