/**
* \file debug.h
*
* \brief Functions for controlling and providing debug output from the library.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: GPL-2.0
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_DEBUG_H
#define MBEDTLS_DEBUG_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "ssl.h"
#if defined(MBEDTLS_ECP_C)
#include "ecp.h"
#endif
#if defined(MBEDTLS_DEBUG_C)
#define MBEDTLS_DEBUG_STRIP_PARENS( ... ) __VA_ARGS__
#define MBEDTLS_SSL_DEBUG_MSG( level, args ) \
mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__, \
MBEDTLS_DEBUG_STRIP_PARENS args )
#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) \
mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret )
#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) \
mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len )
#if defined(MBEDTLS_BIGNUM_C)
#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) \
mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X )
#endif
#if defined(MBEDTLS_ECP_C)
#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) \
mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X )
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) \
mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt )
#endif
#if defined(MBEDTLS_ECDH_C)
#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) \
mbedtls_debug_printf_ecdh( ssl, level, __FILE__, __LINE__, ecdh, attr )
#endif
#else /* MBEDTLS_DEBUG_C */
#define MBEDTLS_SSL_DEBUG_MSG( level, args ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 )
#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) do { } while( 0 )
#endif /* MBEDTLS_DEBUG_C */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Set the threshold error level to handle globally all debug output.
* Debug messages that have a level over the threshold value are
* discarded.
* (Default value: 0 = No debug )
*
* \param threshold theshold level of messages to filter on. Messages at a
* higher level will be discarded.
* - Debug levels
* - 0 No debug
* - 1 Error
* - 2 State change
* - 3 Informational
* - 4 Verbose
*/
void mbedtls_debug_set_threshold( int threshold );
/**
* \brief Print a message to the debug output. This function is always used
* through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl
* context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the message has occurred in
* \param line line number the message has occurred at
* \param format format specifier, in printf format
* \param ... variables used by the format specifier
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *format, ... );
/**
* \brief Print the return value of a function to the debug output. This
* function is always used through the MBEDTLS_SSL_DEBUG_RET() macro,
* which supplies the ssl context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param text the name of the function that returned the error
* \param ret the return code value
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, int ret );
/**
* \brief Output a buffer of size len bytes to the debug output. This function
* is always used through the MBEDTLS_SSL_DEBUG_BUF() macro,
* which supplies the ssl context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param text a name or label for the buffer being dumped. Normally the
* variable or buffer name
* \param buf the buffer to be outputted
* \param len length of the buffer
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *text,
const unsigned char *buf, size_t len );
#if defined(MBEDTLS_BIGNUM_C)
/**
* \brief Print a MPI variable to the debug output. This function is always
* used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the
* ssl context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param text a name or label for the MPI being output. Normally the
* variable name
* \param X the MPI variable
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_mpi *X );
#endif
#if defined(MBEDTLS_ECP_C)
/**
* \brief Print an ECP point to the debug output. This function is always
* used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the
* ssl context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param text a name or label for the ECP point being output. Normally the
* variable name
* \param X the ECP point
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_ecp_point *X );
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/**
* \brief Print a X.509 certificate structure to the debug output. This
* function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro,
* which supplies the ssl context, file and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param text a name or label for the certificate being output
* \param crt X.509 certificate structure
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_x509_crt *crt );
#endif
#if defined(MBEDTLS_ECDH_C)
typedef enum
{
MBEDTLS_DEBUG_ECDH_Q,
MBEDTLS_DEBUG_ECDH_QP,
MBEDTLS_DEBUG_ECDH_Z,
} mbedtls_debug_ecdh_attr;
/**
* \brief Print a field of the ECDH structure in the SSL context to the debug
* output. This function is always used through the
* MBEDTLS_SSL_DEBUG_ECDH() macro, which supplies the ssl context, file
* and line number parameters.
*
* \param ssl SSL context
* \param level error level of the debug message
* \param file file the error has occurred in
* \param line line number the error has occurred in
* \param ecdh the ECDH context
* \param attr the identifier of the attribute being output
*
* \attention This function is intended for INTERNAL usage within the
* library only.
*/
void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const mbedtls_ecdh_context *ecdh,
mbedtls_debug_ecdh_attr attr );
#endif
#ifdef __cplusplus
}
#endif
#endif /* debug.h */