148 lines
5.5 KiB
C
148 lines
5.5 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_TLV_BLOCK_H__
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#define NFC_T4T_TLV_BLOCK_H__
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/**@file
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*
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* @defgroup nfc_t4t_tlv_block File Control TLV block parser for Type 4 Tag.
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* @{
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* @ingroup nfc_t4t_cc_file
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*
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* @brief File Control TLV block parser for Type 4 Tag (T4T).
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*
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*/
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#include <stdint.h>
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#include "sdk_errors.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CONTROL_FILE_READ_ACCESS_GRANTED 0x00 ///< Read access granted without any security.
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/**
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* @name Possible values of file write access condition field.
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* @{
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*/
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#define CONTROL_FILE_WRITE_ACCESS_GRANTED 0x00 ///< Write access granted without any security.
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#define CONTROL_FILE_WRITE_ACCESS_DISABLED 0xFF ///< No write access granted without any security (read-only).
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/** @} */
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/**
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* @brief Possible types of File Control TLV for Type 4 Tag.
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*/
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typedef enum
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{
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NDEF_FILE_CONTROL_TLV = 0x04, ///< Control information concerning the EF file with short NDEF message.
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PROPRIETARY_FILE_CONTROL_TLV = 0x05, ///< Control information concerning the Proprietary file with proprietary data.
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EXTENDED_NDEF_FILE_CONTROL_TLV = 0x06 ///< Control information concerning the EF file with long NDEF message.
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} nfc_t4t_tlv_block_types_t;
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/**
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* @brief File content descriptor.
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*/
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typedef struct
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{
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uint8_t * p_content; ///< Pointer to the file content.
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uint16_t len; ///< Length of file content.
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} nfc_t4t_file_t;
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/**
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* @brief Extended NDEF/NDEF/Proprietary File Control Value descriptor.
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*/
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typedef struct
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{
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nfc_t4t_file_t file; ///< Pointer to the described file content.
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uint32_t max_file_size; ///< Maximum size (in bytes) of the file.
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uint16_t file_id; ///< File identifier.
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uint8_t read_access; ///< File read access condition.
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uint8_t write_access; ///< File write access condition.
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} nfc_t4t_file_control_val_t;
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/**
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* @brief File Control TLV block descriptor.
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*/
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typedef struct
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{
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nfc_t4t_file_control_val_t value; ///< Value field descriptor.
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uint16_t length; ///< Length of the value field.
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uint8_t type; ///< Type of the TLV block.
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} nfc_t4t_tlv_block_t;
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/**
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* @brief Function for parsing raw data of File Control TLV, read from a Type 4 Tag.
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*
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* This function parses raw data of File Control TLV and stores the results in its
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* descriptor.
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*
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* @param[in,out] p_file_control_tlv Pointer to the File Control TLV that will be filled with
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* parsed data.
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* @param[in] p_raw_data Pointer to the buffer with raw TLV data.
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* @param[in,out] p_len In: Buffer length with TLV blocks.
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* Out: Total length of first identified TLV within the buffer.
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*
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* @retval NRF_SUCCESS If operation was successful.
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* @retval NRF_ERROR_INVALID_LENGTH If provided buffer length is too small for TLV block.
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* @retval NRF_ERROR_INVALID_DATA If any TLV block field contains invalid data.
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*/
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ret_code_t nfc_t4t_file_control_tlv_parse(nfc_t4t_tlv_block_t * p_file_control_tlv,
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uint8_t * p_raw_data,
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uint16_t * p_len);
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/**
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* @brief Function for printing TLV block descriptor.
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*
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* This function prints TLV block descriptor.
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*
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* @param[in] num TLV block number.
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* @param[in] p_t4t_tlv_block Pointer to the TLV block descriptor.
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*/
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void nfc_t4t_file_control_tlv_printout(uint8_t num, nfc_t4t_tlv_block_t * p_t4t_tlv_block);
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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_TLV_BLOCK_H__ */
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