ifx-apdu.h

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// SPDX-FileCopyrightText: Copyright (c) 2024-2026 Infineon Technologies AG
// SPDX-License-Identifier: MIT
 
#ifndef IFX_APDU_H
#define IFX_APDU_H
 
#include <stddef.h>
#include <stdint.h>
#include "infineon/ifx-error.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define LIB_APDU                     UINT8_C(0x10)
 
#define IFX_CHECK_SW_OK(response_sw) (response_sw == 0x9000)
 
#define IFX_APDU_LE_ANY              0x100u
 
#define IFX_APDU_LE_ANY_EXTENDED     0x10000u
 
#define IFX_APDU_DECODE              0x01u
 
#define IFX_LC_MISMATCH              0x01u
 
#define IFX_EXTENDED_LEN_MISMATCH    0x02u
 
#define IFX_APDU_ENCODE              0x02u
 
#define IFX_APDU_RESPONSE_DECODE     0x03u
 
#define IFX_APDU_RESPONSE_ENCODE     0x04u
 
typedef struct
{
    uint8_t cla;
 
    uint8_t ins;
 
    uint8_t p1;
 
    uint8_t p2;
 
    size_t lc;
 
    uint8_t *data;
 
    size_t le;
} ifx_apdu_t;
 
typedef struct
{
    uint8_t *data;
 
    size_t len;
 
    uint16_t sw;
} ifx_apdu_response_t;
 
ifx_status_t ifx_apdu_encode(const ifx_apdu_t *apdu, uint8_t **buffer,
                             size_t *buffer_len);
 
ifx_status_t ifx_apdu_decode(ifx_apdu_t *apdu, const uint8_t *data,
                             size_t data_len);
 
void ifx_apdu_destroy(ifx_apdu_t *apdu);
 
ifx_status_t ifx_apdu_response_decode(ifx_apdu_response_t *response,
                                      const uint8_t *data, size_t data_len);
 
ifx_status_t ifx_apdu_response_encode(const ifx_apdu_response_t *response,
                                      uint8_t **buffer, size_t *buffer_len);
 
void ifx_apdu_response_destroy(ifx_apdu_response_t *response);
 
#ifdef __cplusplus
}
#endif
 
#endif // IFX_APDU_H