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Print "thread ID" in debug messages

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closes #218
This commit is contained in:
Manuel Pégourié-Gonnard 2015-08-31 16:11:00 +02:00
parent d68434efba
commit 7b23c51595
3 changed files with 44 additions and 12 deletions
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2
ChangeLog
View File

@ -35,6 +35,8 @@ Changes
* It is now possible to #include a user-provided configuration file at the * It is now possible to #include a user-provided configuration file at the
end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
compiler's command line. compiler's command line.
* Prepend a "thread identifier" to debug messages (issue pointed out by
Hugo Leisink) (#210).
= mbed TLS 2.0.0 released 2015-07-13 = mbed TLS 2.0.0 released 2015-07-13

49
library/debug.c
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@ -43,6 +43,10 @@
#define mbedtls_snprintf snprintf #define mbedtls_snprintf snprintf
#endif #endif
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && !defined(inline)
#define inline __inline
#endif
#define DEBUG_BUF_SIZE 512 #define DEBUG_BUF_SIZE 512
static int debug_threshold = 0; static int debug_threshold = 0;
@ -52,6 +56,27 @@ void mbedtls_debug_set_threshold( int threshold )
debug_threshold = threshold; debug_threshold = threshold;
} }
/*
* All calls to f_dbg must be made via this function
*/
static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *str )
{
/*
* If in a threaded environment, we need a thread identifier.
* Since there is no portable way to get one, use the address of the ssl
* context instead, as it shouldn't be shared between threads.
*/
#if defined(MBEDTLS_THREADING_C)
char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", ssl, str );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr );
#else
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str );
#endif
}
void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level, void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *file, int line,
const char *format, ... ) const char *format, ... )
@ -86,7 +111,7 @@ void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
str[ret + 1] = '\0'; str[ret + 1] = '\0';
} }
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
} }
void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level, void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
@ -109,7 +134,7 @@ void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n", mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n",
text, ret, -ret ); text, ret, -ret );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
} }
void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level, void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
@ -126,7 +151,7 @@ void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n", mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n",
text, (unsigned int) len ); text, (unsigned int) len );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
idx = 0; idx = 0;
memset( txt, 0, sizeof( txt ) ); memset( txt, 0, sizeof( txt ) );
@ -140,7 +165,7 @@ void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
if( i > 0 ) if( i > 0 )
{ {
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
idx = 0; idx = 0;
memset( txt, 0, sizeof( txt ) ); memset( txt, 0, sizeof( txt ) );
@ -162,7 +187,7 @@ void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " ); idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt ); mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
} }
} }
@ -207,7 +232,7 @@ void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n", mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n",
text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) ); text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
idx = 0; idx = 0;
for( i = n + 1, j = 0; i > 0; i-- ) for( i = n + 1, j = 0; i > 0; i-- )
@ -227,7 +252,7 @@ void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
if( j > 0 ) if( j > 0 )
{ {
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
idx = 0; idx = 0;
} }
} }
@ -244,7 +269,7 @@ void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" ); idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" ); mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
} }
#endif /* MBEDTLS_BIGNUM_C */ #endif /* MBEDTLS_BIGNUM_C */
@ -261,7 +286,7 @@ static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
if( mbedtls_pk_debug( pk, items ) != 0 ) if( mbedtls_pk_debug( pk, items ) != 0 )
{ {
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, debug_send_line( ssl, level, file, line,
"invalid PK context\n" ); "invalid PK context\n" );
return; return;
} }
@ -282,7 +307,7 @@ static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value ); mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value );
else else
#endif #endif
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, debug_send_line( ssl, level, file, line,
"should not happen\n" ); "should not happen\n" );
} }
} }
@ -305,7 +330,7 @@ static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level,
memcpy( str, start, len ); memcpy( str, start, len );
str[len] = '\0'; str[len] = '\0';
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
start = cur + 1; start = cur + 1;
} }
@ -327,7 +352,7 @@ void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
char buf[1024]; char buf[1024];
mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i ); mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str ); debug_send_line( ssl, level, file, line, str );
mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt ); mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
debug_print_line_by_line( ssl, level, file, line, buf ); debug_print_line_by_line( ssl, level, file, line, buf );

5
tests/suites/test_suite_debug.function
View File

@ -25,6 +25,11 @@ void string_debug(void *data, int level, const char *file, int line, const char
*p++ = ':'; *p++ = ':';
*p++ = ' '; *p++ = ' ';
#if defined(MBEDTLS_THREADING_C)
/* Skip "thread ID" (up to the first space) as it is not predictable */
while( *str++ != ' ' );
#endif
memcpy( p, str, strlen( str ) ); memcpy( p, str, strlen( str ) );
p += strlen( str ); p += strlen( str );