tlv.h

/*
 * This file is part of the openHiTLS project.
 *
 * openHiTLS is licensed under the Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *     http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
 
#ifndef TLV_H
#define TLV_H
 
#include "hitls_build.h"
#ifdef HITLS_BSL_TLV
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define TLV_HEADER_LENGTH (sizeof(uint32_t) + sizeof(uint32_t))
 
typedef struct {
    uint32_t type;
    uint32_t length;
    uint8_t *value;
} BSL_Tlv;

int32_t BSL_TLV_Pack(const BSL_Tlv *tlv, uint8_t *buffer, uint32_t bufLen, uint32_t *usedLen);

int32_t BSL_TLV_Parse(uint32_t wantType, const uint8_t *data, uint32_t dataLen, BSL_Tlv *tlv, uint32_t *readLen);

int32_t BSL_TLV_FindValuePos(uint32_t wantType, const uint8_t *data, uint32_t dataLen,
    uint32_t *offset, uint32_t *length);
 
#ifdef __cplusplus
}
#endif
#endif /* HITLS_BSL_TLV */
#endif // TLV_H