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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef VBOOT_REFERENCE_CHROMEOS_CONFIG_H_
#define VBOOT_REFERENCE_CHROMEOS_CONFIG_H_
#include <stdbool.h>
#include <stdint.h>
#include "2common.h"
#include "2return_codes.h"
/**
* Get a value from the model configuration on the device as a string.
*
* Note: this function allocates memory by its use of vb2_read_file, and relies
* on the caller to free the allocated memory. The output parameter will be set
* to NULL upon failure, so free can be safely called on this parameter.
*
* @param path The path in the config schema to the object containing
* the requested property.
* @param property The name of the requested property.
* @param val_out Output parameter which gets assigned to a
* null-terminated string.
* @return VB2_SUCCESS on success, or a relevant error upon error.
*/
vb2_error_t chromeos_config_get_string(const char *path, const char *property,
char **val_out);
/**
* Get a value from the model configuration on the device as a boolean.
*
* @param path The path in the config schema to the object containing
* the requested property.
* @param property The name of the requested property.
* @param val_out Output parameter which gets assigned to a boolean.
* @return VB2_SUCCESS on success, or a relevant error upon error.
*/
vb2_error_t chromeos_config_get_boolean(const char *path, const char *property,
bool *val_out);
/**
* Get a value from the model configuration on the device as an integer.
*
* @param path The path in the config schema to the object containing
* the requested property.
* @param property The name of the requested property.
* @param val_out Output parameter which gets assigned to an integer.
* @return VB2_SUCCESS on success, or a relevant error upon error.
*/
vb2_error_t chromeos_config_get_integer(const char *path, const char *property,
int *val_out);
#endif /* VBOOT_REFERENCE_CHROMEOS_CONFIG_H_ */
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