106 lines
5.1 KiB
C
106 lines
5.1 KiB
C
/**
|
|
* Copyright (c) 2014 - 2020, 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 COND_FIELD_SERIALIZATION_H__
|
|
#define COND_FIELD_SERIALIZATION_H__
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef uint32_t (*field_encoder_handler_t)(void const * const p_field,
|
|
uint8_t * const p_buf,
|
|
uint32_t buf_len,
|
|
uint32_t * const p_index);
|
|
|
|
typedef uint32_t (*field_decoder_handler_t)(uint8_t const * const p_buf,
|
|
uint32_t buf_len,
|
|
uint32_t * const p_index,
|
|
void * p_field);
|
|
|
|
/**@brief Function for safe encoding of a conditional field.
|
|
*
|
|
* Function sets a presence flag and checks if conditional field is provided. If the field is not NULL,
|
|
* it calls the provided parser function which attempts to encode the field content to the buffer stream.
|
|
*
|
|
* @param[in] p_field Pointer to the input struct.
|
|
* @param[in] p_buf Pointer to the beginning of the output buffer.
|
|
* @param[in] buf_len Size of the buffer.
|
|
* @param[in,out] p_index \c in: Index to the start of the uint8 value in the buffer.
|
|
* \c out: Index in the buffer to the first byte after the encoded data.
|
|
* @param[in] fp_field_encoder Pointer to the function which implements fields encoding.
|
|
*
|
|
* @return NRF_SUCCESS Fields encoded successfully.
|
|
* @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
|
|
*/
|
|
uint32_t cond_field_enc(void const * const p_field,
|
|
uint8_t * const p_buf,
|
|
uint32_t buf_len,
|
|
uint32_t * const p_index,
|
|
field_encoder_handler_t fp_field_encoder);
|
|
|
|
/**@brief Function for safe decoding of a conditional field.
|
|
*
|
|
* Function checks if conditional field is present in the input buffer. If it is set, it calls
|
|
* the provided parser function which attempts to parse the buffer content to the known field.
|
|
*
|
|
* @param[in] p_buf Pointer to the beginning of the input buffer.
|
|
* @param[in] buf_len Size of the buffer.
|
|
* @param[in,out] p_index \c in: Index to the start of the uint8 value in the buffer.
|
|
* \c out: Index in the buffer to the first byte after the decoded data.
|
|
* @param[in] pp_field Pointer to output location.
|
|
* @param[in] fp_field_decoder Pointer to the function which implements field decoding.
|
|
*
|
|
* @return NRF_SUCCESS Fields decoded successfully.
|
|
* @retval NRF_ERROR_INVALID_LENGTH Decoding failure. Incorrect buffer length.
|
|
*/
|
|
uint32_t cond_field_dec(uint8_t const * const p_buf,
|
|
uint32_t buf_len,
|
|
uint32_t * const p_index,
|
|
void * * const pp_field,
|
|
field_decoder_handler_t fp_field_decoder);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // COND_FIELD_SERIALIZATION_H__
|