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MD: Demonstrate config-dep'n API inlining for mbedtls_md_starts()

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This commit is contained in:
Hanno Becker 2019-09-04 12:46:07 +01:00
parent 7a7b7227cb
commit 527f7c9307
2 changed files with 36 additions and 10 deletions
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34
include/mbedtls/md.h
View file

@ -82,6 +82,8 @@ typedef enum {
#if !defined(MBEDTLS_MD_SINGLE_HASH) #if !defined(MBEDTLS_MD_SINGLE_HASH)
#define MBEDTLS_MD_INLINABLE_API
/** /**
* Opaque struct defined in md.c. * Opaque struct defined in md.c.
*/ */
@ -93,6 +95,8 @@ typedef struct mbedtls_md_info_t const * mbedtls_md_handle_t;
#else /* !MBEDTLS_MD_SINGLE_HASH */ #else /* !MBEDTLS_MD_SINGLE_HASH */
#define MBEDTLS_MD_INLINABLE_API MBEDTLS_ALWAYS_INLINE static inline
typedef int mbedtls_md_handle_t; typedef int mbedtls_md_handle_t;
#define MBEDTLS_MD_INVALID_HANDLE ( (mbedtls_md_handle_t) 0 ) #define MBEDTLS_MD_INVALID_HANDLE ( (mbedtls_md_handle_t) 0 )
#define MBEDTLS_MD_UNIQUE_VALID_HANDLE ( (mbedtls_md_handle_t) 1 ) #define MBEDTLS_MD_UNIQUE_VALID_HANDLE ( (mbedtls_md_handle_t) 1 )
@ -308,7 +312,7 @@ const char *mbedtls_md_get_name( mbedtls_md_handle_t md_info );
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification * \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure. * failure.
*/ */
int mbedtls_md_starts( mbedtls_md_context_t *ctx ); MBEDTLS_MD_INLINABLE_API int mbedtls_md_starts( mbedtls_md_context_t *ctx );
/** /**
* \brief This function feeds an input buffer into an ongoing * \brief This function feeds an input buffer into an ongoing
@ -500,6 +504,34 @@ int mbedtls_md_hmac( mbedtls_md_handle_t md_info, const unsigned char *key, size
/* Internal use */ /* Internal use */
int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data ); int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data );
/*
* Internal wrapper functions for those MD API functions which should be
* inlined in some but not all configurations. The actual MD API will be
* implemented either here or in md.c, and forward to the wrappers.
*/
MBEDTLS_ALWAYS_INLINE static inline int mbedtls_md_starts_internal(
mbedtls_md_context_t *ctx )
{
mbedtls_md_handle_t md_info;
if( ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
md_info = mbedtls_md_get_handle( ctx );
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( mbedtls_md_info_starts( md_info, ctx->md_ctx ) );
}
#if defined(MBEDTLS_MD_SINGLE_HASH)
MBEDTLS_MD_INLINABLE_API int mbedtls_md_starts(
mbedtls_md_context_t *ctx )
{
return( mbedtls_md_starts_internal( ctx ) );
}
#endif /* MBEDTLS_MD_SINGLE_HASH */
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

12
library/md.c
View file

@ -459,18 +459,12 @@ int mbedtls_md_setup( mbedtls_md_context_t *ctx, mbedtls_md_handle_t md_info, in
return( 0 ); return( 0 );
} }
#if !defined(MBEDTLS_MD_SINGLE_HASH)
int mbedtls_md_starts( mbedtls_md_context_t *ctx ) int mbedtls_md_starts( mbedtls_md_context_t *ctx )
{ {
mbedtls_md_handle_t md_info; return( mbedtls_md_starts_internal( ctx ) );
if( ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
md_info = mbedtls_md_get_handle( ctx );
if( md_info == MBEDTLS_MD_INVALID_HANDLE )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( mbedtls_md_info_starts( md_info, ctx->md_ctx ) );
} }
#endif /* !MBEDTLS_MD_SINGLE_HASH */
int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen ) int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
{ {