OCStackResult InitPstatResource()
{
OCStackResult ret = OC_STACK_ERROR;
// Read Pstat resource from PS
uint8_t *data = NULL;
size_t size = 0;
OicUuid_t emptyUuid = {.id={0}};
ret = GetSecureVirtualDatabaseFromPS(OIC_JSON_PSTAT_NAME, &data, &size);
// If database read failed
if (OC_STACK_OK != ret)
{
OIC_LOG (DEBUG, TAG, "ReadSVDataFromPS failed");
}
if (data)
{
// Read ACL resource from PS
ret = CBORPayloadToPstat(data, size, &gPstat);
OICFree(data);
}
/*
* If SVR database in persistent storage got corrupted or
* is not available for some reason, a default pstat is created
* which allows user to initiate pstat provisioning again.
*/
if ((OC_STACK_OK != ret) || !gPstat)
{
gPstat = GetPstatDefault();
}
VERIFY_NON_NULL(TAG, gPstat, FATAL);
//In case of Pstat's device id is empty, fill the device id as doxm's device id.
if(0 == memcmp(&gPstat->deviceID, &emptyUuid, sizeof(OicUuid_t)))
{
OicUuid_t doxmUuid = {.id={0}};
if(OC_STACK_OK == GetDoxmDeviceID(&doxmUuid))
{
memcpy(&gPstat->deviceID, &doxmUuid, sizeof(OicUuid_t));
}
}
/**
* Updates the Secure Virtual Resource(s) into the Persistent Storage.
* This function stores cbor-payload of each resource by appending resource name,
* and empty payload implies deleting the value
*
* @param rsrcName - pointer of character string for the SVR name (e.g. "acl")
* @param psPayload - pointer of the updated Secure Virtual Resource(s)
* @param psSize - the updated size of Secure Virtual Resource(s)
*
* @return OCStackResult - result of updating Secure Virtual Resource(s)
*/
OCStackResult UpdateSecureResourceInPS(const char *rsrcName, const uint8_t *psPayload, size_t psSize)
{
OIC_LOG(DEBUG, TAG, "UpdateSecureResourceInPS IN");
if (!rsrcName)
{
return OC_STACK_INVALID_PARAM;
}
size_t dbSize = 0;
size_t outSize = 0;
uint8_t *dbData = NULL;
uint8_t *outPayload = NULL;
uint8_t *aclCbor = NULL;
uint8_t *pstatCbor = NULL;
uint8_t *doxmCbor = NULL;
uint8_t *amaclCbor = NULL;
uint8_t *svcCbor = NULL;
uint8_t *credCbor = NULL;
uint8_t *pconfCbor = NULL;
int64_t cborEncoderResult = CborNoError;
OCStackResult ret = GetSecureVirtualDatabaseFromPS(NULL, &dbData, &dbSize);
if (dbData && dbSize)
{
size_t aclCborLen = 0;
size_t pstatCborLen = 0;
size_t doxmCborLen = 0;
size_t amaclCborLen = 0;
size_t svcCborLen = 0;
size_t credCborLen = 0;
size_t pconfCborLen = 0;
// Gets each secure virtual resource from persistent storage
// this local scoping intended, for destroying large cbor instances after use
{
CborParser parser; // will be initialized in |cbor_parser_init|
CborValue cbor; // will be initialized in |cbor_parser_init|
cbor_parser_init(dbData, dbSize, 0, &parser, &cbor);
CborValue curVal = {0};
CborError cborFindResult = CborNoError;
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_ACL_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &aclCbor, &aclCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding ACL Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_PSTAT_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &pstatCbor, &pstatCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding PSTAT Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_DOXM_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &doxmCbor, &doxmCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding DOXM Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_AMACL_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &amaclCbor, &amaclCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding AMACL Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_SVC_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &svcCbor, &svcCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding SVC Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_CRED_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &credCbor, &credCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding CRED Name Value.");
}
cborFindResult = cbor_value_map_find_value(&cbor, OIC_JSON_PCONF_NAME, &curVal);
if (CborNoError == cborFindResult && cbor_value_is_byte_string(&curVal))
{
cborFindResult = cbor_value_dup_byte_string(&curVal, &pconfCbor, &pconfCborLen, NULL);
VERIFY_CBOR_SUCCESS(TAG, cborFindResult, "Failed Finding PCONF Name Value.");
}
}
// Updates the added |psPayload| with the existing secure virtual resource(s)
// this local scoping intended, for destroying large cbor instances after use
{
size_t size = aclCborLen + pstatCborLen + doxmCborLen + amaclCborLen
+ svcCborLen + credCborLen + pconfCborLen + psSize + 255;
// This added '255' is arbitrary value that is added to cover the name of the resource, map addition and ending
outPayload = (uint8_t *) OICCalloc(1, size);
VERIFY_NON_NULL(TAG, outPayload, ERROR);
CborEncoder encoder; // will be initialized in |cbor_parser_init|
cbor_encoder_init(&encoder, outPayload, size, 0);
CborEncoder secRsrc; // will be initialized in |cbor_encoder_create_map|
cborEncoderResult |= cbor_encoder_create_map(&encoder, &secRsrc, CborIndefiniteLength);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PS Map.");
if (psPayload && psSize)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, rsrcName, strlen(rsrcName));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Value Tag");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, psPayload, psSize);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Value.");
}
if (strcmp(OIC_JSON_ACL_NAME, rsrcName) && aclCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_ACL_NAME, strlen(OIC_JSON_ACL_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ACL Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, aclCbor, aclCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding ACL Value.");
}
if (strcmp(OIC_JSON_PSTAT_NAME, rsrcName) && pstatCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_PSTAT_NAME, strlen(OIC_JSON_PSTAT_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PSTAT Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, pstatCbor, pstatCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PSTAT Value.");
}
if (strcmp(OIC_JSON_DOXM_NAME, rsrcName) && doxmCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_DOXM_NAME, strlen(OIC_JSON_DOXM_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, doxmCbor, doxmCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Doxm Value.");
}
if (strcmp(OIC_JSON_AMACL_NAME, rsrcName) && amaclCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_AMACL_NAME, strlen(OIC_JSON_AMACL_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Amacl Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, amaclCbor, amaclCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Amacl Value.");
}
if (strcmp(OIC_JSON_SVC_NAME, rsrcName) && svcCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_SVC_NAME, strlen(OIC_JSON_SVC_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SVC Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, svcCbor, svcCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding SVC Value.");
}
if (strcmp(OIC_JSON_CRED_NAME, rsrcName) && credCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_CRED_NAME, strlen(OIC_JSON_CRED_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, credCbor, credCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Cred Value.");
}
if (strcmp(OIC_JSON_PCONF_NAME, rsrcName) && pconfCborLen)
{
cborEncoderResult |= cbor_encode_text_string(&secRsrc, OIC_JSON_PCONF_NAME, strlen(OIC_JSON_PCONF_NAME));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Pconf Name.");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, pconfCbor, pconfCborLen);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Pconf Value.");
}
cborEncoderResult |= cbor_encoder_close_container(&encoder, &secRsrc);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing Array.");
outSize = encoder.ptr - outPayload;
}
}
else if (psPayload && psSize)
{
size_t size = psSize + 255;
// This added '255' is arbitrary value that is added to cover the name of the resource, map addition and ending
outPayload = (uint8_t *) OICCalloc(1, size);
VERIFY_NON_NULL(TAG, outPayload, ERROR);
CborEncoder encoder; // will be initialized in |cbor_parser_init|
cbor_encoder_init(&encoder, outPayload, size, 0);
CborEncoder secRsrc; // will be initialized in |cbor_encoder_create_map|
cborEncoderResult |= cbor_encoder_create_map(&encoder, &secRsrc, CborIndefiniteLength);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding PS Map.");
cborEncoderResult |= cbor_encode_text_string(&secRsrc, rsrcName, strlen(rsrcName));
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Value Tag");
cborEncoderResult |= cbor_encode_byte_string(&secRsrc, psPayload, psSize);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Adding Value.");
cborEncoderResult |= cbor_encoder_close_container(&encoder, &secRsrc);
VERIFY_CBOR_SUCCESS(TAG, cborEncoderResult, "Failed Closing Array.");
outSize = encoder.ptr - outPayload;
}
if (outPayload && outSize)
{
OIC_LOG_V(DEBUG, TAG, "Writting in the file: %zu", outSize);
OCPersistentStorage* ps = SRMGetPersistentStorageHandler();
if (ps)
{
FILE *fp = ps->open(SVR_DB_DAT_FILE_NAME, "wb");
if (fp)
{
size_t numberItems = ps->write(outPayload, 1, outSize, fp);
if (outSize == numberItems)
{
OIC_LOG_V(DEBUG, TAG, "Written %zu bytes into SVR database file", outSize);
ret = OC_STACK_OK;
}
else
{
OIC_LOG_V(ERROR, TAG, "Failed writing %zu in the database", numberItems);
}
ps->close(fp);
}
else
{
OIC_LOG(ERROR, TAG, "File open failed.");
}
}
}
OIC_LOG(DEBUG, TAG, "UpdateSecureResourceInPS OUT");
exit:
OICFree(dbData);
OICFree(outPayload);
OICFree(aclCbor);
OICFree(pstatCbor);
OICFree(doxmCbor);
OICFree(amaclCbor);
OICFree(svcCbor);
OICFree(credCbor);
OICFree(pconfCbor);
return ret;
}