/** * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef NFC_NDEF_MSG_PARSER_H__ #define NFC_NDEF_MSG_PARSER_H__ /**@file * * @defgroup nfc_ndef_parser NDEF message parser * @{ * @ingroup nfc_modules * * @brief Parser for NFC NDEF messages and records. * * @defgroup nfc_ndef_msg_parser Parser for NDEF messages * @{ * @ingroup nfc_ndef_parser * * @brief Parser for NFC NDEF messages. * */ #include #include "nfc_ndef_msg_parser_local.h" #ifdef __cplusplus extern "C" { #endif /** * @brief Macro for calculating the memory size required for holding the * description of a message that consists of a certain number of NDEF records. * * @param[in] max_count_of_records Maximum number of records to hold. */ #define NFC_NDEF_PARSER_REQIRED_MEMO_SIZE_CALC(max_count_of_records) \ ((uint32_t)(max_count_of_records) <= 1) ? \ (sizeof(parsed_ndef_msg_1_t) * (uint32_t)(max_count_of_records)) : \ (sizeof(parsed_ndef_msg_1_t) + ((NFC_PARSER_M_DELTA) *((uint32_t)(max_count_of_records) - 1))) /** * @brief Function for parsing NFC NDEF messages. * * This function parses NDEF messages using NDEF binary record descriptors. * * @param[out] p_result_buf Pointer to the buffer that will be used to hold * the NDEF message descriptor. After parsing is completed successfully, the first address * in the buffer is filled by the NDEF message descriptor * (@ref nfc_ndef_msg_desc_t), which provides a full description of * the parsed NDEF message. * @param[in,out] p_result_buf_len As input: size of the buffer specified by @p p_result_buf. * As output: size of the reserved (used) part of the buffer specified by * @p p_result_buf. * @param[in] p_nfc_data Pointer to the data to be parsed. * @param[in,out] p_nfc_data_len As input: size of the NFC data in the @p p_nfc_data buffer. As output: size of the parsed message. * * @retval NRF_SUCCESS If the function completed successfully. * @retval NRF_ERROR_NO_MEM If the provided buffer is too small to hold a one-record message or * the buffer is too small to hold the actual result of the parsing. * @retval NRF_ERROR_INVALID_LENGTH If the expected message length is bigger than the amount of the provided input data. * @retval NRF_ERROR_INVALID_DATA If the message is not a valid NDEF message. */ ret_code_t ndef_msg_parser(uint8_t * const p_result_buf, uint32_t * const p_result_buf_len, uint8_t * const p_nfc_data, uint32_t * const p_nfc_data_len); /** * @brief Function for printing the parsed contents of an NDEF message. * * @param[in] p_msg_desc Pointer to the descriptor of the message that should be printed. */ void ndef_msg_printout(nfc_ndef_msg_desc_t * const p_msg_desc); /** * @} * @} */ #ifdef __cplusplus } #endif #endif // NFC_NDEF_MSG_PARSER_H__