src/lib/support/jsontlv/JsonToTlv.h

/*
 *
 *    Copyright (c) 2023 Project CHIP Authors
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#include <lib/core/TLV.h>
#include <string>

namespace chip {

/*
 * Given a JSON object that represents TLV, this function writes the corresponding TLV bytes into the provided buffer.
 * The size of tlv will be adjusted to the size of the actual data written to the buffer.
 */
CHIP_ERROR JsonToTlv(const std::string & jsonString, MutableByteSpan & tlv);

/*
 * Given a JSON object that represents TLV, this function makes encode calls on the given TLVWriter to encode the corresponding TLV
 * bytes.
 */
CHIP_ERROR JsonToTlv(const std::string & jsonString, TLV::TLVWriter & writer);

/*
 * Convert a uint32_t tagNumber (from MEI) to a TLV tag.
 * The upper 16 bits of tag_number represent the vendor_id.
 * The lower 16 bits of tag_number represent the tag_id.
 * When the MEI prefix encodes a standard/scoped source, the tag is encoded using ContextSpecific tag if tag_id is less than or
 * equal to UINT8_MAX, and ImplicitProfile tag if tag_id is larger than UINT8_MAX. When the MEI prefix encodes a manufacturer code,
 * the tag is encoded using FullyQualified_6Bytes tag, the Vendor ID SHALL be set to the manufacturer code, the profile number set
 * to 0 and the tag number set to the MEI suffix.
 */
CHIP_ERROR ConvertTlvTag(uint32_t tagNumber, TLV::Tag & tag);

} // namespace chip