222 lines
8.1 KiB
C
222 lines
8.1 KiB
C
/**
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* Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef NFC_T4T_APDU_H__
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#define NFC_T4T_APDU_H__
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/**@file
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*
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* @defgroup nfc_t4t_apdu APDU reader/writer
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* @{
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* @ingroup nfc_t4t_parser
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*
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* @brief APDU reader/writer for Type 4 Tag communication.
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*
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*/
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#include <stdint.h>
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#include <string.h>
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#include "sdk_errors.h"
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#include "nrf.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CLASS_BYTE_NO_SECURE_MSG 0x00 ///< Class byte indicating no secure messaging, used in C-APDU.
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/**
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* @name Parameters used when selecting instruction code in C-APDU.
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* @{
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*/
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#define SELECT_BY_FILE_ID 0x000C ///< Select by file identifier, first or only occurence.
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#define SELECT_BY_NAME 0x0400 ///< Select by name, first or only occurence.
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/** @} */
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/**
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* @name Status codes contained in R-APDU.
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* @{
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*/
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#define RAPDU_STATUS_CMD_COMPLETED 0x9000 ///< Command completed successfully.
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#define RAPDU_STATUS_SEL_ITEM_NOT_FOUND 0x6A82 ///< Selected item has not been found.
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/** @} */
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/**
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* @brief Possible instruction codes in C-APDU.
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*/
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typedef enum
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{
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NFC_T4T_CAPDU_SELECT_INS = 0xA4, ///< Code used for selecting EF or NDEF application.
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NFC_T4T_CAPDU_READ_INS = 0xB0, ///< Code used for selecting EF or NDEF application.
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NFC_T4T_CAPDU_UPDATE_INS = 0xD6 ///< Code used for selecting EF or NDEF application.
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} nfc_t4t_comm_apdu_ins_type_t;
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/**
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* @brief APDU data field descriptor.
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*/
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typedef struct
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{
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uint16_t len; ///< Data field length.
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uint8_t * p_buff; ///< Pointer to data field.
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} nfc_t4t_apdu_data_t;
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/**
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* @brief Command Application Protocol Data Unit (C-APDU) descriptor.
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*/
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typedef struct
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{
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uint8_t class_byte; ///< Class byte.
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nfc_t4t_comm_apdu_ins_type_t instruction; ///< The chosen code of instruction.
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uint16_t parameter; ///< Parameters associated with the instruction code.
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nfc_t4t_apdu_data_t data; ///< Optional data fields (Lc + data bytes).
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uint16_t resp_len; ///< Optional response length field (Le).
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} nfc_t4t_comm_apdu_t;
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/**
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* @brief Response Application Protocol Data Unit (R-APDU) descriptor.
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*/
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typedef struct
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{
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uint16_t status; ///< Mandatory status field.
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nfc_t4t_apdu_data_t data; ///< Optional data field.
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} nfc_t4t_resp_apdu_t;
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/**
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* @brief Macro for verifying R-APDU descriptor status.
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*
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* This macro verifies R-APDU descriptor status. It will cause the exterior
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* function to return nrf_error translated from R-APDU status, if the status is
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* not equal to @ref RAPDU_STATUS_CMD_COMPLETED.
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*
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* @param[in] P_RAPDU Pointer to R-APDU descriptor.
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*
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* @retval NRF_ERROR_NOT_FOUND If C-APDU select command could not find the selected item.
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* @retval NRF_ERROR_INTERNAL Unknown R-APDU error.
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*/
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#define VERIFY_RAPDU_SUCCESS(P_RAPDU) \
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if (P_RAPDU->status == RAPDU_STATUS_SEL_ITEM_NOT_FOUND) \
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{ \
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return NRF_ERROR_NOT_FOUND; \
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} \
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if (P_RAPDU->status != RAPDU_STATUS_CMD_COMPLETED) \
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{ \
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return NRF_ERROR_INTERNAL; \
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}
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/**
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* @brief Function for clearing C-APDU descriptor and restoring its default values.
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*
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* @param[in] p_cmd_apdu Pointer to C-APDU descriptor.
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*/
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__STATIC_INLINE void nfc_t4t_comm_apdu_clear(nfc_t4t_comm_apdu_t * const p_cmd_apdu);
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/**
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* @brief Function for clearing R-APDU descriptor and restoring its default values.
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*
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* @param[in] p_resp_apdu Pointer to R-APDU descriptor.
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*/
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__STATIC_INLINE void nfc_t4t_resp_apdu_clear(nfc_t4t_resp_apdu_t * const p_resp_apdu);
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/**
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* @brief Function for encoding C-APDU.
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*
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* This function encodes C-APDU according to the provided descriptor.
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*
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* @param[in] p_cmd_apdu Pointer to the C-APDU descriptor.
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* @param[out] p_raw_data Pointer to the buffer with encoded C-APDU.
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* @param[in,out] p_len Size of the available memory for the C-APDU as input.
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* Size of the generated C-APDU as output.
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*
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* @retval NRF_SUCCESS If C-APDU was encoded successfully.
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* @retval NRF_ERROR_NO_MEM If the predicted C-APDU size is bigger than the provided buffer space.
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* @retval NRF_ERROR_INVALID_PARAM If C-APDU descriptor is invalid.
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* @retval NRF_ERROR_NULL If any passed argument is NULL.
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*/
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ret_code_t nfc_t4t_comm_apdu_encode(nfc_t4t_comm_apdu_t const * const p_cmd_apdu,
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uint8_t * p_raw_data,
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uint16_t * const p_len);
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/**
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* @brief Function for decoding R-APDU.
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*
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* This function decodes buffer with encoded R-APDU and stores results in the R-APDU descriptor.
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*
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* @param[out] p_resp_apdu Pointer to the R-APDU descriptor.
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* @param[in] p_raw_data Pointer to the buffer with encoded R-APDU.
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* @param[in] len Size of of the buffer with encoded R-APDU.
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*
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* @retval NRF_SUCCESS If R-APDU was encoded successfully.
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* @retval NRF_ERROR_INVALID_LENGTH If the buffer is too small to hold a valid R-APDU.
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* @retval NRF_ERROR_NULL If any passed argument is NULL.
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*/
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ret_code_t nfc_t4t_resp_apdu_decode(nfc_t4t_resp_apdu_t * const p_resp_apdu,
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uint8_t const * const p_raw_data,
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uint16_t len);
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/**
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* @brief Function for printing a R-APDU descriptor.
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*
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* This function prints a R-APDU descriptor.
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*
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* @param[in] p_resp_apdu Pointer to the R-APDU descriptor.
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*/
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void nfc_t4t_resp_apdu_printout(nfc_t4t_resp_apdu_t * p_resp_apdu);
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#ifndef SUPPRESS_INLINE_IMPLEMENTATION
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__STATIC_INLINE void nfc_t4t_comm_apdu_clear(nfc_t4t_comm_apdu_t * const p_cmd_apdu)
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{
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memset(p_cmd_apdu, 0, sizeof(nfc_t4t_comm_apdu_t));
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}
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__STATIC_INLINE void nfc_t4t_resp_apdu_clear(nfc_t4t_resp_apdu_t * const p_resp_apdu)
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{
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memset(p_resp_apdu, 0, sizeof(nfc_t4t_resp_apdu_t));
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}
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#endif // SUPPRESS_INLINE_IMPLEMENTATION
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* NFC_T4T_APDU_H__ */
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