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/* SPDX-License-Identifier: BSD-3-Clause */
#ifndef SRC_LOG_H_
#define SRC_LOG_H_
#include <stdbool.h>
#include <stdio.h>
#include <tss2/tss2_sys.h>
#include <tss2/tss2_rc.h>
#include "tpm2_util.h"
typedef enum log_level log_level;
enum log_level {
log_level_error,
log_level_warning,
log_level_verbose
};
void _log (log_level level, const char *file, unsigned lineno, const char *fmt, ...)
COMPILER_ATTR(format (printf, 4, 5));
/*
* Prints an error message. The fmt and variadic arguments mirror printf.
*
* Use this to log all error conditions.
*/
#define LOG_ERR(fmt, ...) _log(log_level_error, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
/**
* Prints an error message for a TSS2_Sys call to the TPM.
* The format is <function-name>(0x<rc>) - <error string>
* @param func
* The function that caused the error
* @param rc
* The return code to print.
*/
#define LOG_PERR(func, rc) _LOG_PERR(xstr(func), rc)
/**
* Internal use only.
*
* Handles the expanded LOG_PERR call checking argument values
* and handing them off to LOG_ERR.
* @param func
* The function name.
* @param rc
* The rc to decode.
*/
static inline void _LOG_PERR(const char *func, TSS2_RC rc) {
LOG_ERR("%s(0x%X) - %s", func, rc, Tss2_RC_Decode(rc));
}
/*
* Prints an warning message. The fmt and variadic arguments mirror printf.
*
* Use this to log a warning. A warning is when something is wrong, but it is not a fatal
* issue.
*/
#define LOG_WARN(fmt, ...) _log(log_level_warning, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
/*
* Prints an informational message. The fmt and variadic arguments mirror printf.
*
* Informational messages are only shown when verboseness is increased. Valid messages
* would be debugging type messages where additional, extraneous information is printed.
*/
#define LOG_INFO(fmt, ...) _log(log_level_verbose, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
/**
* Sets the log level so only messages <= to it print.
* @param level
* The logging level to set.
*/
void log_set_level(log_level level);
#endif /* SRC_LOG_H_ */
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