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Diffstat (limited to 'include/mbedtls/debug.h')
| -rw-r--r-- | include/mbedtls/debug.h | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h new file mode 100644 index 0000000..0aef2ed --- /dev/null +++ b/include/mbedtls/debug.h @@ -0,0 +1,308 @@ +/** + * \file debug.h + * + * \brief Functions for controlling and providing debug output from the library. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_DEBUG_H +#define MBEDTLS_DEBUG_H + +#include "mbedtls/build_info.h" + +#include "mbedtls/ssl.h" + +#if defined(MBEDTLS_ECP_C) +#include "mbedtls/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) +#if !defined(MBEDTLS_X509_REMOVE_INFO) +#define MBEDTLS_SSL_DEBUG_CRT(level, text, crt) \ + mbedtls_debug_print_crt(ssl, level, __FILE__, __LINE__, text, crt) +#else +#define MBEDTLS_SSL_DEBUG_CRT(level, text, crt) do { } while (0) +#endif /* MBEDTLS_X509_REMOVE_INFO */ +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#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 */ + +/** + * \def MBEDTLS_PRINTF_ATTRIBUTE + * + * Mark a function as having printf attributes, and thus enable checking + * via -wFormat and other flags. This does nothing on builds with compilers + * that do not support the format attribute + * + * Module: library/debug.c + * Caller: + * + * This module provides debugging functions. + */ +#if defined(__has_attribute) +#if __has_attribute(format) +#if defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1 +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((__format__(gnu_printf, string_index, first_to_check))) +#else /* defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 1 */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((format(printf, string_index, first_to_check))) +#endif +#else /* __has_attribute(format) */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) +#endif /* __has_attribute(format) */ +#else /* defined(__has_attribute) */ +#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check) +#endif + +/** + * \def MBEDTLS_PRINTF_SIZET + * + * MBEDTLS_PRINTF_xxx: Due to issues with older window compilers + * and MinGW we need to define the printf specifier for size_t + * and long long per platform. + * + * Module: library/debug.c + * Caller: + * + * This module provides debugging functions. + */ +#if (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) + #include <inttypes.h> + #define MBEDTLS_PRINTF_SIZET PRIuPTR + #define MBEDTLS_PRINTF_LONGLONG "I64d" +#else \ + /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */ + #define MBEDTLS_PRINTF_SIZET "zu" + #define MBEDTLS_PRINTF_LONGLONG "lld" +#endif \ + /* (defined(__MINGW32__) && __USE_MINGW_ANSI_STDIO == 0) || (defined(_MSC_VER) && _MSC_VER < 1800) */ + +#if !defined(MBEDTLS_PRINTF_MS_TIME) +#define MBEDTLS_PRINTF_MS_TIME PRId64 +#endif /* MBEDTLS_PRINTF_MS_TIME */ + +#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 threshold 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, ...) MBEDTLS_PRINTF_ATTRIBUTE(5, 6); + +/** + * \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) && !defined(MBEDTLS_X509_REMOVE_INFO) +/** + * \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 + +/* Note: the MBEDTLS_ECDH_C guard here is mandatory because this debug function + only works for the built-in implementation. */ +#if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED) && \ + 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 /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_ANY_ENABLED && + MBEDTLS_ECDH_C */ + +#ifdef __cplusplus +} +#endif + +#endif /* debug.h */ |