1 /* *****************************************************************
3 * Copyright 2016 Samsung Electronics All Rights Reserved.
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 * *****************************************************************/
21 #include "iotivity_config.h"
26 #include "oic_malloc.h"
27 #include "oic_string.h"
30 #include "resourcemanager.h"
31 #include "dpairingresource.h"
32 #include "psinterface.h"
34 #include "srmresourcestrings.h"
35 #include "cainterface.h"
36 #include "doxmresource.h"
37 #include "pconfresource.h"
38 #include "credresource.h"
39 #include "aclresource.h"
40 #include "srmutility.h"
41 #include "ocserverrequest.h"
42 #include "ocpayload.h"
43 #include "ocpayloadcbor.h"
44 #include "payload_logging.h"
54 #define TAG "OIC_SRM_DPAIRING"
56 /** Default cbor payload size. This value is increased in case of CborErrorOutOfMemory.
57 * The value of payload size is increased until reaching belox max cbor size. */
58 static const uint16_t CBOR_SIZE = 1024;
60 /** Max cbor size payload. */
61 static const uint16_t CBOR_MAX_SIZE = 4400;
63 /** DOXM Map size - Number of mandatory items. */
64 static const uint8_t DPAIR_MAP_SIZE = 3;
66 static OicSecDpairing_t *gDpair = NULL;
67 static OCResourceHandle gDpairHandle = NULL;
68 static OicSecDpairing_t gDefaultDpair =
70 PRM_NOT_ALLOWED, /* OicSecPrm_t spm */
71 {.id = {0}}, /* OicUuid_t pdeviceID */
72 {.id = {0}}, /* OicUuid_t rowner */
75 void DeleteDpairingBinData(OicSecDpairing_t* dpair)
79 //Clean dpairing itself
85 * Get the default value.
86 * @retval the gDefaultDpair pointer;
88 static OicSecDpairing_t* GetDpairingDefault()
90 OIC_LOG (DEBUG, TAG, "GetDpairingDefault");
92 return &gDefaultDpair;
96 * This method is used by SRM to retrieve Dpairing resource data..
98 void SetDpairingResourceOwner(OicUuid_t *rowner)
100 OIC_LOG (DEBUG, TAG, "SetDpairingResourceOwner");
103 memcpy(&gDpair->rownerID, rowner, sizeof(OicUuid_t));
107 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
109 * Function to save PairingPSK.
111 * @param[in] endpoint current endpoint.
112 * @param[in] peerDevID peer device indentitiy.
113 * @param[in] isPairingServer indicate if it generates PairingPSK for server or client.
115 * @return OC_STACK_OK on success
117 OCStackResult SavePairingPSK(OCDevAddr *endpoint,
118 OicUuid_t *peerDevID, OicUuid_t *owner, bool isPairingServer)
120 OIC_LOG(DEBUG, TAG, "IN SavePairingPSK");
122 if(NULL == endpoint || NULL == peerDevID || NULL == owner)
124 OIC_LOG_V(ERROR, TAG, "Invalid Input parameters in [%s]\n", __FUNCTION__);
125 return OC_STACK_INVALID_PARAM;
128 OCStackResult res = OC_STACK_ERROR;
130 OicUuid_t ptDeviceID = {.id={0}};
131 if (OC_STACK_OK != GetDoxmDeviceID(&ptDeviceID))
133 OIC_LOG(ERROR, TAG, "Error while retrieving provisioning tool's device ID");
137 uint8_t pairingPSK[OWNER_PSK_LENGTH_128] = {0};
138 OicSecKey_t pairingKey = {pairingPSK, OWNER_PSK_LENGTH_128, OIC_ENCODING_RAW};
140 //Generating PairingPSK using OwnerPSK scheme
141 CAResult_t pskRet = CAGenerateOwnerPSK((const CAEndpoint_t *)endpoint,
142 (uint8_t *)OIC_RSRC_TYPE_SEC_DPAIRING,
143 strlen(OIC_RSRC_TYPE_SEC_DPAIRING),
144 (isPairingServer ? ptDeviceID.id : peerDevID->id), sizeof(OicUuid_t), // server
145 (isPairingServer ? peerDevID->id : ptDeviceID.id), sizeof(OicUuid_t), // client
146 pairingPSK, OWNER_PSK_LENGTH_128);
148 if (CA_STATUS_OK == pskRet)
150 OIC_LOG(DEBUG, TAG, "pairingPSK dump:\n");
151 OIC_LOG_BUFFER(DEBUG, TAG, pairingPSK, OWNER_PSK_LENGTH_128);
152 //Generating new credential for direct-pairing client
154 OicSecCred_t *cred = GenerateCredential(peerDevID,
155 SYMMETRIC_PAIR_WISE_KEY, NULL,
156 &pairingKey, owner, NULL);
157 OICClearMemory(pairingPSK, sizeof(pairingPSK));
158 VERIFY_NON_NULL(TAG, cred, ERROR);
160 res = AddCredential(cred);
161 if(res != OC_STACK_OK)
163 DeleteCredList(cred);
169 OIC_LOG(ERROR, TAG, "CAGenerateOwnerPSK failed");
172 OIC_LOG(DEBUG, TAG, "OUT SavePairingPSK");
176 #endif // __WITH_DTLS__ or __WITH_TLS__
178 OCStackResult DpairingToCBORPayload(const OicSecDpairing_t *dpair, uint8_t **payload, size_t *size)
180 if (NULL == dpair || NULL == payload || NULL != *payload || NULL == size)
182 return OC_STACK_INVALID_PARAM;
185 size_t cborLen = *size;
194 OCStackResult ret = OC_STACK_ERROR;
197 CborEncoder dpairMap;
199 int64_t cborEncoderResult = CborNoError;
200 uint8_t mapSize = DPAIR_MAP_SIZE;
202 uint8_t *outPayload = (uint8_t *)OICCalloc(1, cborLen);
203 VERIFY_NON_NULL(TAG, outPayload, ERROR);
204 cbor_encoder_init(&encoder, outPayload, cborLen, 0);
206 cborEncoderResult = cbor_encoder_create_map(&encoder, &dpairMap, mapSize);
207 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Creating DPAIRING Map");
210 cborEncoderResult = cbor_encode_text_string(&dpairMap, OIC_JSON_SPM_NAME,
211 strlen(OIC_JSON_SPM_NAME));
212 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SPM name tag");
213 cborEncoderResult = cbor_encode_int(&dpairMap, dpair->spm);
214 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SPM value");
216 //PDEVICEID -- Mandatory
217 cborEncoderResult = cbor_encode_text_string(&dpairMap, OIC_JSON_PDEVICE_ID_NAME,
218 strlen(OIC_JSON_PDEVICE_ID_NAME));
219 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PDeviceID tag");
221 char *deviceId = NULL;
222 ret = ConvertUuidToStr(&dpair->pdeviceID, &deviceId);
223 VERIFY_SUCCESS(TAG, ret == OC_STACK_OK, ERROR);
224 cborEncoderResult = cbor_encode_text_string(&dpairMap, deviceId, strlen(deviceId));
225 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed to encode PDeviceID value");
229 //ROWNER -- Mandatory
232 cborEncoderResult = cbor_encode_text_string(&dpairMap, OIC_JSON_ROWNERID_NAME,
233 strlen(OIC_JSON_ROWNERID_NAME));
234 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ROWNER tag");
235 ret = ConvertUuidToStr(&dpair->rownerID, &rowner);
236 VERIFY_SUCCESS(TAG, ret == OC_STACK_OK, ERROR);
237 cborEncoderResult = cbor_encode_text_string(&dpairMap, rowner, strlen(rowner));
238 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Rowner ID value");
242 cborEncoderResult = cbor_encoder_close_container(&encoder, &dpairMap);
243 VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed to close dpairMap");
245 if (CborNoError == cborEncoderResult)
247 *size = cbor_encoder_get_buffer_size(&encoder, outPayload);
248 *payload = outPayload;
253 if ((CborErrorOutOfMemory == cborEncoderResult) && (cborLen < CBOR_MAX_SIZE))
255 // reallocate and try again!
257 // Since the allocated initial memory failed, double the memory.
258 cborLen += cbor_encoder_get_buffer_size(&encoder, encoder.end);
259 cborEncoderResult = CborNoError;
260 ret = DpairingToCBORPayload(dpair, payload, &cborLen);
264 if ((CborNoError != cborEncoderResult) || (OC_STACK_OK != ret))
270 ret = OC_STACK_ERROR;
276 OCStackResult CBORPayloadToDpair(const uint8_t *cborPayload, size_t size,
277 OicSecDpairing_t **secDpair)
279 if (NULL == cborPayload || NULL == secDpair || NULL != *secDpair || 0 == size)
281 return OC_STACK_INVALID_PARAM;
284 OCStackResult ret = OC_STACK_ERROR;
287 CborValue dpairCbor = { .parser = NULL };
288 CborParser parser = { .end = NULL };
289 CborError cborFindResult = CborNoError;
291 cbor_parser_init(cborPayload, size, 0, &parser, &dpairCbor);
292 CborValue dpairMap = { .parser = NULL };
293 OicSecDpairing_t *dpair = NULL;
294 cborFindResult = cbor_value_enter_container(&dpairCbor, &dpairMap);
295 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Entering DPairing Map");
297 dpair = (OicSecDpairing_t *)OICCalloc(1, sizeof(*dpair));
298 VERIFY_NON_NULL(TAG, dpair, ERROR);
300 while (cbor_value_is_valid(&dpairMap) && cbor_value_is_text_string(&dpairMap))
304 CborType type = CborInvalidType;
305 cborFindResult = cbor_value_dup_text_string(&dpairMap, &name, &len, NULL);
306 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding tag name");
307 cborFindResult = cbor_value_advance(&dpairMap);
308 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing a value in DPair map");
310 type = cbor_value_get_type(&dpairMap);
311 if (0 == strcmp(OIC_JSON_SPM_NAME, name) && cbor_value_is_integer(&dpairMap))
315 cborFindResult = cbor_value_get_int(&dpairMap, &spm);
316 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SPM Value");
317 dpair->spm = (OicSecPrm_t)spm;
320 if (0 == strcmp(OIC_JSON_PDEVICE_ID_NAME, name))
323 cborFindResult = cbor_value_dup_text_string(&dpairMap, &id, &len, NULL);
324 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding PDeviceID value");
325 ret = ConvertStrToUuid(id, &dpair->pdeviceID);
326 VERIFY_SUCCESS(TAG, ret == OC_STACK_OK, ERROR);
330 if (0 == strcmp(OIC_JSON_ROWNERID_NAME, name))
333 cborFindResult = cbor_value_dup_text_string(&dpairMap, &id, &len, NULL);
334 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding RownerID value");
335 ret = ConvertStrToUuid(id, &dpair->rownerID);
336 VERIFY_SUCCESS(TAG, ret == OC_STACK_OK, ERROR);
340 if (CborMapType != type && cbor_value_is_valid(&dpairMap))
342 cborFindResult = cbor_value_advance(&dpairMap);
343 VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Advancing the Dpair Map");
352 if (CborNoError != cborFindResult)
354 OIC_LOG (ERROR, TAG, "CBORPayloadToDoxm failed");
355 DeleteDpairingBinData(dpair);
358 ret = OC_STACK_ERROR;
363 * Function to handle the handshake result in Direct-Pairing.
364 * This function will be invoked after DTLS handshake
365 * @param endPoint [IN] The remote endpoint.
366 * @param errorInfo [IN] Error information from the endpoint.
369 void DPairingDTLSHandshakeCB(const CAEndpoint_t *endpoint, const CAErrorInfo_t *info)
371 OIC_LOG_V(INFO, TAG, "IN DPairingDTLSHandshakeCB");
373 if(gDpair && endpoint && info)
375 OIC_LOG_V(INFO, TAG, "Received status from remote device(%s:%d) : %d",
376 endpoint->addr, endpoint->port, info->result);
378 if(CA_STATUS_OK == info->result)
380 OIC_LOG(INFO, TAG, "DPairingDTLSHandshakeCB - Connection success.");
382 else if(CA_DTLS_AUTHENTICATION_FAILURE == info->result)
384 OIC_LOG(INFO, TAG, "DPairingDTLSHandshakeCB - Authentication failed");
388 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
389 CAregisterSslHandshakeCallback(NULL);
390 #endif // __WITH_DTLS__ or __WITH_TLS__
392 // delete temporary key
393 RemoveCredential(&gDpair->pdeviceID);
396 OIC_LOG_V(INFO, TAG, "OUT DPairingDTLSHandshakeCB");
399 static OCEntityHandlerResult HandleDpairingPostRequest (const OCEntityHandlerRequest * ehRequest)
401 OIC_LOG (DEBUG, TAG, "Dpairing EntityHandle processing POST request");
402 OCEntityHandlerResult ehRet = OC_EH_ERROR;
403 OicSecDpairing_t* newDpair = NULL;
404 OCStackResult res = OC_STACK_OK;
406 const OicSecPconf_t *pconf = GetPconfResourceData();
407 if (true == pconf->edp)
409 uint8_t *payload = ((OCSecurityPayload*)ehRequest->payload)->securityData;
410 size_t size = ((OCSecurityPayload*)ehRequest->payload)->payloadSize;
413 res = CBORPayloadToDpair(payload, size, &newDpair);
418 OIC_LOG (DEBUG, TAG, "EDP == false : Direct-Pairing Disabled");
422 if (OC_STACK_OK == res && newDpair && false == IsPairedDevice(&newDpair->pdeviceID))
424 // Check if valid Post request
425 bool prmMached = false;
426 for (size_t i=0; i<pconf->prmLen; i++)
428 if (newDpair->spm == pconf->prm[i])
434 OIC_LOG_V(DEBUG, TAG, "Parsed spm is %s", prmMached ? "valid" :
435 "invalid, send error response");
437 // Update local Dpairing with new Dpairing & prepare dtls session
438 if (prmMached && '\0' != (char)newDpair->pdeviceID.id[0])
442 gDpair = GetDpairingDefault();
444 gDpair->spm = newDpair->spm;
445 memcpy(&gDpair->pdeviceID, &newDpair->pdeviceID, sizeof(OicUuid_t));
446 memcpy(&gDpair->rownerID, &pconf->rownerID, sizeof(OicUuid_t));
448 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
451 OicUuid_t subjectId = {.id={0}};
452 res = AddTmpPskWithPIN(&gDpair->pdeviceID,
453 SYMMETRIC_PAIR_WISE_KEY,
454 (char*)pconf->pin.val, DP_PIN_LENGTH,
455 &gDpair->rownerID, &subjectId);
456 if(res != OC_STACK_OK ||
457 memcmp(&gDpair->pdeviceID, &subjectId, sizeof(OicUuid_t)))
459 OIC_LOG_V(ERROR, TAG, "Failed to save the temporal PSK : %d", res);
463 // Prepare to establish a secure channel with Pin-based PSK cipher suite
464 if (CA_STATUS_OK != CAEnableAnonECDHCipherSuite(false) ||
465 CA_STATUS_OK != CASelectCipherSuite(TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256, CA_ADAPTER_IP))
467 OIC_LOG_V(ERROR, TAG, "Failed to select TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA_256");
471 if(CA_STATUS_OK != CAregisterSslHandshakeCallback(DPairingDTLSHandshakeCB))
473 OIC_LOG(WARNING, TAG, "DirectPairingHandler : Failed to register"
474 " DTLS handshake callback.");
477 #endif // __WITH_DTLS__ or __WITH_TLS__
479 // should be lock /oic/sec/dpairing resource if Direct-Pairing starts normally ?
480 OIC_LOG (DEBUG, TAG, "/oic/sec/dpairing resource created");
482 ehRet = OC_EH_RESOURCE_CREATED;
486 OIC_LOG(ERROR, TAG, "Error in request check");
491 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
493 #endif // __WITH_DTLS__ or __WITH_TLS__
495 // Send payload to request originator
496 if(OC_STACK_OK != SendSRMResponse(ehRequest, ehRet, NULL, 0))
499 OIC_LOG (ERROR, TAG, "SendSRMResponse failed in HandleDpairingPostRequest");
502 if (OC_EH_ERROR == ehRet && gDpair)
504 RemoveCredential(&gDpair->pdeviceID);
508 DeleteDpairingBinData(newDpair);
509 OIC_LOG_V (DEBUG, TAG, "%s RetVal %d", __func__ , ehRet);
513 static OCEntityHandlerResult HandleDpairingPutRequest (const OCEntityHandlerRequest * ehRequest)
515 OIC_LOG (DEBUG, TAG, "Dpairing EntityHandle processing PUT request (Comfirmation)");
517 OCEntityHandlerResult ehRet = OC_EH_ERROR;
518 OicSecDpairing_t* newDpair = NULL;
519 OCStackResult res = OC_STACK_OK;
521 const OicSecPconf_t *pconf = GetPconfResourceData();
522 if (true == pconf->edp)
524 uint8_t *payload = ((OCSecurityPayload*)ehRequest->payload)->securityData;
525 size_t size = ((OCSecurityPayload*)ehRequest->payload)->payloadSize;
528 res = CBORPayloadToDpair(payload, size, &newDpair);
534 OIC_LOG (DEBUG, TAG, "EDP == false : Direct-Pairing Disabled");
539 if ((OC_STACK_OK == res) && gDpair && newDpair)
541 OIC_LOG(DEBUG, TAG, "Received direct-pairing finalization request");
543 // Check if valid Put request
544 VERIFY_SUCCESS(TAG, PRM_NOT_ALLOWED == newDpair->spm, ERROR);
546 const OicSecPconf_t *pconf = GetPconfResourceData();
547 VERIFY_NON_NULL(TAG, pconf, ERROR);
549 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
550 OCServerRequest *request = GetServerRequestUsingHandle(ehRequest->requestHandle);
551 VERIFY_SUCCESS(TAG, (request->devAddr.flags | OC_FLAG_SECURE), ERROR);
553 //Generate new credential
554 OIC_LOG_V(INFO, TAG, "SavePairingPSK for %s(%d)", request->devAddr.addr,
555 request->devAddr.port);
556 OCStackResult res = SavePairingPSK(&request->devAddr, &newDpair->pdeviceID,
557 (OicUuid_t *)&pconf->rownerID, true);
558 VERIFY_SUCCESS(TAG, OC_STACK_OK == res, ERROR);
559 #endif // __WITH_DTLS__ or __WITH_TLS__
562 OicSecPdAcl_t *pdAcl;
563 LL_FOREACH(pconf->pdacls, pdAcl)
565 OicSecAcl_t* acl = (OicSecAcl_t*)OICCalloc(1, sizeof(OicSecAcl_t));
566 VERIFY_NON_NULL(TAG, acl, ERROR);
568 OicSecAce_t* ace = (OicSecAce_t*)OICCalloc(1, sizeof(OicSecAce_t));
569 VERIFY_NON_NULL(TAG, ace, ERROR);
571 LL_APPEND(acl->aces, ace);
573 memcpy(&ace->subjectuuid, &gDpair->pdeviceID, sizeof(OicUuid_t));
575 for(size_t i = 0; i < pdAcl->resourcesLen; i++)
577 OicSecRsrc_t* rsrc = (OicSecRsrc_t*)OICCalloc(1, sizeof(OicSecRsrc_t));
578 VERIFY_NON_NULL(TAG, rsrc, ERROR);
579 LL_APPEND(ace->resources, rsrc);
582 rsrc->href = OICStrdup(pdAcl->resources[i]);
584 // TODO: Append 'if' and 'rt' as workaround
586 rsrc->interfaceLen = 1;
587 rsrc->interfaces = (char**)OICCalloc(rsrc->interfaceLen, sizeof(char));
588 VERIFY_NON_NULL(TAG, (rsrc->interfaces), ERROR);
589 rsrc->interfaces[0] = OICStrdup(OC_RSRVD_INTERFACE_DEFAULT);
590 VERIFY_NON_NULL(TAG, (rsrc->interfaces[0]), ERROR);
594 rsrc->types = (char**)OICCalloc(rsrc->typeLen, sizeof(char));
595 VERIFY_NON_NULL(TAG, (rsrc->types), ERROR);
596 rsrc->types[0] = OICStrdup("oic.core");
597 VERIFY_NON_NULL(TAG, (rsrc->types[0]), ERROR);
600 ace->permission = pdAcl->permission;
603 if(pdAcl->periods || pdAcl->recurrences)
605 OicSecValidity_t* validity = (OicSecValidity_t*)OICCalloc(1, sizeof(OicSecValidity_t));
606 VERIFY_NON_NULL(TAG, validity, ERROR);
608 if(pdAcl->periods && pdAcl->periods[0])
610 size_t periodLen = strlen(pdAcl->periods[0]) + 1;
611 validity->period = (char*)OICMalloc(periodLen * sizeof(char));
612 VERIFY_NON_NULL(TAG, (validity->period), ERROR);
613 OICStrcpy(validity->period, periodLen, pdAcl->periods[0]);
616 if(pdAcl->recurrences && 0 < pdAcl->prdRecrLen)
618 validity->recurrenceLen = pdAcl->prdRecrLen;
619 validity->recurrences = (char**)OICMalloc(sizeof(char*) * pdAcl->prdRecrLen);
620 VERIFY_NON_NULL(TAG, (validity->recurrences), ERROR);
622 for(size_t i = 0; i < pdAcl->prdRecrLen; i++)
624 size_t recurrenceLen = strlen(pdAcl->recurrences[i]) + 1;
625 validity->recurrences[i] = (char*)OICMalloc(recurrenceLen * sizeof(char));
626 VERIFY_NON_NULL(TAG, (validity->recurrences[i]), ERROR);
628 OICStrcpy(validity->recurrences[i], recurrenceLen, pdAcl->recurrences[i]);
632 LL_APPEND(ace->validities, validity);
636 uint8_t *payload = NULL;
637 if (OC_STACK_OK == AclToCBORPayload(acl, &payload, &size))
639 AppendACL(payload, size);
645 //update pconf device list
646 AddPairedDevice(&newDpair->pdeviceID);
648 //Initialize dpairing resource
651 OIC_LOG (DEBUG, TAG, "/oic/sec/dpairing resource updated,"
652 "direct-pairing finalization success");
658 //Send payload to request originator
659 if(OC_STACK_OK != SendSRMResponse(ehRequest, ehRet, NULL, 0))
662 OIC_LOG (ERROR, TAG, "SendSRMResponse failed in HandleDpairingPutRequest");
665 DeleteDpairingBinData(newDpair);
666 OIC_LOG_V (DEBUG, TAG, "%s RetVal %d", __func__ , ehRet);
670 * This internal method is the entity handler for Dpairing resources and
671 * will handle REST request (GET/POST) for them.
673 OCEntityHandlerResult DpairingEntityHandler (OCEntityHandlerFlag flag,
674 OCEntityHandlerRequest * ehRequest,
675 void* callbackParameter)
677 OIC_LOG(DEBUG, TAG, "Received request DpairingEntityHandler");
678 (void)callbackParameter;
679 OCEntityHandlerResult ehRet = OC_EH_ERROR;
686 if (flag & OC_REQUEST_FLAG)
688 OIC_LOG (DEBUG, TAG, "Flag includes OC_REQUEST_FLAG");
689 switch (ehRequest->method)
695 ehRet = HandleDpairingPostRequest(ehRequest);
699 ehRet = HandleDpairingPutRequest(ehRequest);
707 SendSRMResponse(ehRequest, ehRet, NULL, 0);
715 * This internal method is used to create '/oic/sec/dpairing' resource.
717 OCStackResult CreateDpairingResource()
721 ret = OCCreateResource(&gDpairHandle,
722 OIC_RSRC_TYPE_SEC_DPAIRING,
723 OC_RSRVD_INTERFACE_DEFAULT,
724 OIC_RSRC_DPAIRING_URI,
725 DpairingEntityHandler,
727 OC_SECURE | OC_EXPLICIT_DISCOVERABLE);
729 if (OC_STACK_OK != ret)
731 OIC_LOG (ERROR, TAG, "Unable to instantiate Dpairing resource");
732 DeInitDpairingResource();
738 * Initialize Dpairing resource by loading data from persistent storage.
740 * @retval OC_STACK_OK for Success, otherwise some error value
742 OCStackResult InitDpairingResource()
744 OCStackResult ret = OC_STACK_ERROR;
746 // Instantiate 'oic.sec.dpairing'
747 ret = CreateDpairingResource();
748 if (OC_STACK_OK != ret)
750 DeInitDpairingResource();
756 * Perform cleanup for Dpairing resources.
759 * OC_STACK_OK - no error
760 * OC_STACK_ERROR - stack process error
763 OCStackResult DeInitDpairingResource()
765 OCStackResult ret = OCDeleteResource(gDpairHandle);
768 if(OC_STACK_OK == ret)
774 return OC_STACK_ERROR;
778 OCStackResult SetDpairingRownerId(const OicUuid_t* newROwner)
780 OCStackResult ret = OC_STACK_ERROR;
781 uint8_t *cborPayload = NULL;
783 OicUuid_t prevId = {.id={0}};
785 if(NULL == newROwner)
787 ret = OC_STACK_INVALID_PARAM;
791 ret = OC_STACK_NO_RESOURCE;
794 if(newROwner && gDpair)
796 memcpy(prevId.id, gDpair->rownerID.id, sizeof(prevId.id));
797 memcpy(gDpair->rownerID.id, newROwner->id, sizeof(newROwner->id));
799 ret = DpairingToCBORPayload(gDpair, &cborPayload, &size);
800 VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
802 ret = UpdateSecureResourceInPS(OIC_JSON_DPAIRING_NAME, cborPayload, size);
803 VERIFY_SUCCESS(TAG, OC_STACK_OK == ret, ERROR);
805 OICFree(cborPayload);
811 OICFree(cborPayload);
812 memcpy(gDpair->rownerID.id, prevId.id, sizeof(prevId.id));
816 OCStackResult GetDpairingRownerId(OicUuid_t *rowneruuid)
818 OCStackResult retVal = OC_STACK_ERROR;
821 *rowneruuid = gDpair->rownerID;
822 retVal = OC_STACK_OK;