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Mutex usage testing: set up wrapper functions

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When using pthread mutexes (MBEDTLS_THREADING_C and
MBEDTLS_THREADING_PTHREAD enabled), and when test hooks are
enabled (MBEDTLS_TEST_HOOKS), set up wrappers around the
mbedtls_mutex_xxx abstraction. In this commit, the wrapper functions
don't do anything yet.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: Chris Jones <christopher.jones@arm.com>
This commit is contained in:
Gilles Peskine 2021-01-29 21:17:11 +01:00 committed by Chris Jones
parent 96a7064754
commit c071373842
2 changed files with 59 additions and 0 deletions
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55
tests/suites/helpers.function
View file

@ -46,6 +46,12 @@ typedef UINT32 uint32_t;
#include <strings.h>
#endif
#if defined(MBEDTLS_THREADING_C) && defined(MBEDTLS_THREADING_PTHREAD) && \
defined(MBEDTLS_TEST_HOOKS)
#include "mbedtls/threading.h"
#define MBEDTLS_TEST_MUTEX_USAGE
#endif
/*
* Define the two macros
*
@ -777,3 +783,52 @@ int mbedtls_test_hexcmp( uint8_t * a, uint8_t * b, uint32_t a_len, uint32_t b_le
}
return ret;
}
/** Mutex usage verification framework.
*
*/
#if defined(MBEDTLS_TEST_MUTEX_USAGE)
typedef struct
{
void (*init)( mbedtls_threading_mutex_t * );
void (*free)( mbedtls_threading_mutex_t * );
int (*lock)( mbedtls_threading_mutex_t * );
int (*unlock)( mbedtls_threading_mutex_t * );
} mutex_functions_t;
static mutex_functions_t mutex_functions;
static void mbedtls_test_wrap_mutex_init( mbedtls_threading_mutex_t *mutex )
{
mutex_functions.init( mutex );
}
static void mbedtls_test_wrap_mutex_free( mbedtls_threading_mutex_t *mutex )
{
mutex_functions.free( mutex );
}
static int mbedtls_test_wrap_mutex_lock( mbedtls_threading_mutex_t *mutex )
{
int ret = mutex_functions.lock( mutex );
return( ret );
}
static int mbedtls_test_wrap_mutex_unlock( mbedtls_threading_mutex_t *mutex )
{
return( mutex_functions.unlock( mutex ) );
}
static void mbedtls_test_mutex_usage_init( void )
{
mutex_functions.init = mbedtls_mutex_init;
mutex_functions.free = mbedtls_mutex_free;
mutex_functions.lock = mbedtls_mutex_lock;
mutex_functions.unlock = mbedtls_mutex_unlock;
mbedtls_mutex_init = &mbedtls_test_wrap_mutex_init;
mbedtls_mutex_free = &mbedtls_test_wrap_mutex_free;
mbedtls_mutex_lock = &mbedtls_test_wrap_mutex_lock;
mbedtls_mutex_unlock = &mbedtls_test_wrap_mutex_unlock;
}
#endif /* MBEDTLS_TEST_MUTEX_USAGE */

4
tests/suites/host_test.function
View file

@ -412,6 +412,10 @@ int execute_tests( int argc , const char ** argv )
mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof( alloc_buf ) );
#endif
#if defined(MBEDTLS_TEST_MUTEX_USAGE)
mbedtls_test_mutex_usage_init( );
#endif
/*
* The C standard doesn't guarantee that all-bits-0 is the representation
* of a NULL pointer. We do however use that in our code for initializing