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312 lines
12 KiB
C
312 lines
12 KiB
C
/**
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* \file debug.h
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*
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* \brief Functions for controlling and providing debug output from the library.
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*/
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBEDTLS_DEBUG_H
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#define MBEDTLS_DEBUG_H
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#include "mbedtls/build_info.h"
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#include "mbedtls/ssl.h"
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#if defined(MBEDTLS_ECP_C)
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#include "mbedtls/ecp.h"
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#endif
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#if defined(MBEDTLS_DEBUG_C)
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#define MBEDTLS_DEBUG_STRIP_PARENS( ... ) __VA_ARGS__
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#define MBEDTLS_SSL_DEBUG_MSG( level, args ) \
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mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__, \
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MBEDTLS_DEBUG_STRIP_PARENS args )
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#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) \
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mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret )
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#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) \
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mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len )
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#if defined(MBEDTLS_BIGNUM_C)
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#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) \
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mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X )
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#endif
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#if defined(MBEDTLS_ECP_C)
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#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) \
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mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X )
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#endif
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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#if !defined(MBEDTLS_X509_REMOVE_INFO)
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#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) \
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mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt )
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#else
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#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 )
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#endif /* MBEDTLS_X509_REMOVE_INFO */
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#endif /* MBEDTLS_X509_CRT_PARSE_C */
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#if defined(MBEDTLS_ECDH_C)
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#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) \
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mbedtls_debug_printf_ecdh( ssl, level, __FILE__, __LINE__, ecdh, attr )
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#endif
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#else /* MBEDTLS_DEBUG_C */
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#define MBEDTLS_SSL_DEBUG_MSG( level, args ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_RET( level, text, ret ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_MPI( level, text, X ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_ECP( level, text, X ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt ) do { } while( 0 )
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#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr ) do { } while( 0 )
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#endif /* MBEDTLS_DEBUG_C */
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/**
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* \def MBEDTLS_PRINTF_ATTRIBUTE
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*
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* Mark a function as having printf attributes, and thus enable checking
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* via -wFormat and other flags. This does nothing on builds with compilers
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* that do not support the format attribute
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*
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* Module: library/debug.c
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* Caller:
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*
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* This module provides debugging functions.
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*/
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#if defined(__has_attribute)
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#if __has_attribute(format)
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#if defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1
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#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \
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__attribute__((__format__ (gnu_printf, string_index, first_to_check)))
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#else /* defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1 */
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#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \
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__attribute__((format(printf, string_index, first_to_check)))
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#endif
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#else /* __has_attribute(format) */
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#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check)
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#endif /* __has_attribute(format) */
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#else /* defined(__has_attribute) */
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#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check)
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#endif
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/**
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* \def MBEDTLS_PRINTF_SIZET
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*
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* MBEDTLS_PRINTF_xxx: Due to issues with older window compilers
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* and MinGW we need to define the printf specifier for size_t
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* and long long per platform.
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*
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* Module: library/debug.c
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* Caller:
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*
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* This module provides debugging functions.
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*/
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#if (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800)
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#include <inttypes.h>
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#define MBEDTLS_PRINTF_SIZET PRIuPTR
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#define MBEDTLS_PRINTF_LONGLONG "I64d"
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#else /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */
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#define MBEDTLS_PRINTF_SIZET "zu"
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#define MBEDTLS_PRINTF_LONGLONG "lld"
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#endif /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Set the threshold error level to handle globally all debug output.
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* Debug messages that have a level over the threshold value are
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* discarded.
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* (Default value: 0 = No debug )
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*
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* \param threshold threshold level of messages to filter on. Messages at a
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* higher level will be discarded.
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* - Debug levels
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* - 0 No debug
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* - 1 Error
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* - 2 State change
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* - 3 Informational
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* - 4 Verbose
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*/
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void mbedtls_debug_set_threshold( int threshold );
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/**
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* \brief Print a message to the debug output. This function is always used
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* through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl
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* context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the message has occurred in
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* \param line line number the message has occurred at
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* \param format format specifier, in printf format
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* \param ... variables used by the format specifier
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *format, ... ) MBEDTLS_PRINTF_ATTRIBUTE(5, 6);
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/**
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* \brief Print the return value of a function to the debug output. This
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* function is always used through the MBEDTLS_SSL_DEBUG_RET() macro,
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* which supplies the ssl context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param text the name of the function that returned the error
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* \param ret the return code value
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, int ret );
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/**
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* \brief Output a buffer of size len bytes to the debug output. This function
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* is always used through the MBEDTLS_SSL_DEBUG_BUF() macro,
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* which supplies the ssl context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param text a name or label for the buffer being dumped. Normally the
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* variable or buffer name
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* \param buf the buffer to be outputted
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* \param len length of the buffer
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line, const char *text,
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const unsigned char *buf, size_t len );
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#if defined(MBEDTLS_BIGNUM_C)
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/**
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* \brief Print a MPI variable to the debug output. This function is always
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* used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the
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* ssl context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param text a name or label for the MPI being output. Normally the
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* variable name
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* \param X the MPI variable
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_mpi *X );
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#endif
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#if defined(MBEDTLS_ECP_C)
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/**
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* \brief Print an ECP point to the debug output. This function is always
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* used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the
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* ssl context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param text a name or label for the ECP point being output. Normally the
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* variable name
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* \param X the ECP point
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_ecp_point *X );
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#endif
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#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_INFO)
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/**
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* \brief Print a X.509 certificate structure to the debug output. This
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* function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro,
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* which supplies the ssl context, file and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param text a name or label for the certificate being output
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* \param crt X.509 certificate structure
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_x509_crt *crt );
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#endif
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#if defined(MBEDTLS_ECDH_C)
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typedef enum
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{
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MBEDTLS_DEBUG_ECDH_Q,
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MBEDTLS_DEBUG_ECDH_QP,
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MBEDTLS_DEBUG_ECDH_Z,
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} mbedtls_debug_ecdh_attr;
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/**
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* \brief Print a field of the ECDH structure in the SSL context to the debug
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* output. This function is always used through the
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* MBEDTLS_SSL_DEBUG_ECDH() macro, which supplies the ssl context, file
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* and line number parameters.
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*
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* \param ssl SSL context
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* \param level error level of the debug message
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* \param file file the error has occurred in
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* \param line line number the error has occurred in
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* \param ecdh the ECDH context
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* \param attr the identifier of the attribute being output
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*
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* \attention This function is intended for INTERNAL usage within the
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* library only.
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*/
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void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const mbedtls_ecdh_context *ecdh,
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mbedtls_debug_ecdh_attr attr );
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* debug.h */
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