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Change func ptrs to have ret val in MD layer

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This patch modifies the internal md context structure in md_wrap.c to
add return values to the function pointers. This enables us to use the
new API in the corresponding MD modules so that failures can be
found at any point in an MD computation.
This commit is contained in:
Andres Amaya Garcia 2017-06-28 14:12:44 +01:00
parent 1ff60f437f
commit 5f872df26a
2 changed files with 97 additions and 86 deletions
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12
include/mbedtls/md_internal.h
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@ -58,17 +58,17 @@ struct mbedtls_md_info_t
int block_size;
/** Digest initialisation function */
void (*starts_func)( void *ctx );
int (*starts_func)( void *ctx );
/** Digest update function */
void (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
int (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
/** Digest finalisation function */
void (*finish_func)( void *ctx, unsigned char *output );
int (*finish_func)( void *ctx, unsigned char *output );
/** Generic digest function */
void (*digest_func)( const unsigned char *input, size_t ilen,
unsigned char *output );
int (*digest_func)( const unsigned char *input, size_t ilen,
unsigned char *output );
/** Allocate a new context */
void * (*ctx_alloc_func)( void );
@ -80,7 +80,7 @@ struct mbedtls_md_info_t
void (*clone_func)( void *dst, const void *src );
/** Internal use only */
void (*process_func)( void *ctx, const unsigned char *input );
int (*process_func)( void *ctx, const unsigned char *input );
};
#if defined(MBEDTLS_MD2_C)