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Introduce macro-based read access to ctx->pk_info

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This commit is contained in:
Manuel Pégourié-Gonnard 2019-09-19 10:45:14 +02:00
parent f8b7c7f0ac
commit 4223ce4fca
2 changed files with 40 additions and 32 deletions
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7
include/mbedtls/pk_internal.h
View File

@ -231,6 +231,13 @@ struct mbedtls_pk_info_t
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/*
* Macros to access pk_info
*/
#define MBEDTLS_PK_CTX_INFO( ctx ) ( (ctx)->pk_info )
#define MBEDTLS_PK_CTX_IS_VALID( ctx ) \
( MBEDTLS_PK_CTX_INFO( (ctx) ) != MBEDTLS_PK_INVALID_HANDLE )
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/* Container for RSA-alt */
typedef struct

65
library/pk.c
View File

@ -1311,8 +1311,8 @@ void mbedtls_pk_free( mbedtls_pk_context *ctx )
if( ctx == NULL )
return;
if ( ctx->pk_info != MBEDTLS_PK_INVALID_HANDLE )
pk_info_ctx_free_func( ctx->pk_info, ctx->pk_ctx );
if( MBEDTLS_PK_CTX_IS_VALID( ctx ) )
pk_info_ctx_free_func( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pk_context ) );
}
@ -1333,7 +1333,7 @@ void mbedtls_pk_restart_init( mbedtls_pk_restart_ctx *ctx )
*/
void mbedtls_pk_restart_free( mbedtls_pk_restart_ctx *ctx )
{
if( ctx == NULL || ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE ||
if( ctx == NULL || !MBEDTLS_PK_CTX_IS_VALID( ctx ) ||
ctx->pk_info->rs_free_func == NULL )
{
return;
@ -1395,7 +1395,7 @@ int mbedtls_pk_setup( mbedtls_pk_context *ctx, mbedtls_pk_handle_t info )
{
PK_VALIDATE_RET( ctx != NULL );
if( info == MBEDTLS_PK_INVALID_HANDLE ||
ctx->pk_info != MBEDTLS_PK_INVALID_HANDLE )
MBEDTLS_PK_CTX_IS_VALID( ctx ) )
{
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
}
@ -1421,7 +1421,7 @@ int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key,
mbedtls_pk_handle_t info = &mbedtls_rsa_alt_info;
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info != MBEDTLS_PK_INVALID_HANDLE )
if( MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
@ -1448,10 +1448,10 @@ int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type )
/* A context with null pk_info is not set up yet and can't do anything.
* For backward compatibility, also accept NULL instead of a context
* pointer. */
if( ctx == NULL || ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( ctx == NULL || !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( 0 );
return( pk_info_can_do( ctx->pk_info, type ) );
return( pk_info_can_do( MBEDTLS_PK_CTX_INFO( ctx ), type ) );
}
/*
@ -1482,7 +1482,7 @@ static int pk_restart_setup( mbedtls_pk_restart_ctx *ctx,
mbedtls_pk_handle_t info )
{
/* Don't do anything if already set up or invalid */
if( ctx == NULL || ctx->pk_info != MBEDTLS_PK_INVALID_HANDLE )
if( ctx == NULL || MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( 0 );
/* Should never happen when we're called */
@ -1512,7 +1512,7 @@ int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE ||
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
@ -1539,8 +1539,8 @@ int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
return( pk_info_verify_func( ctx->pk_info, ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len ) );
return( pk_info_verify_func( MBEDTLS_PK_CTX_INFO( ctx ),
ctx->pk_ctx, md_alg, hash, hash_len, sig, sig_len ) );
}
/*
@ -1567,7 +1567,7 @@ int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ! mbedtls_pk_can_do( ctx, type ) )
@ -1632,7 +1632,7 @@ int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE ||
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
@ -1659,8 +1659,8 @@ int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
return( pk_info_sign_func( ctx->pk_info, ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len, f_rng, p_rng ) );
return( pk_info_sign_func( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx,
md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) );
}
/*
@ -1688,11 +1688,11 @@ int mbedtls_pk_decrypt( mbedtls_pk_context *ctx,
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
return( pk_info_decrypt_func( ctx->pk_info, ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
return( pk_info_decrypt_func( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx,
input, ilen, output, olen, osize, f_rng, p_rng ) );
}
/*
@ -1708,11 +1708,11 @@ int mbedtls_pk_encrypt( mbedtls_pk_context *ctx,
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
return( pk_info_encrypt_func( ctx->pk_info, ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
return( pk_info_encrypt_func( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx,
input, ilen, output, olen, osize, f_rng, p_rng ) );
}
/*
@ -1723,7 +1723,7 @@ int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_conte
PK_VALIDATE_RET( pub != NULL );
PK_VALIDATE_RET( prv != NULL );
if( pub->pk_info == MBEDTLS_PK_INVALID_HANDLE || prv->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( !MBEDTLS_PK_CTX_IS_VALID( pub ) || !MBEDTLS_PK_CTX_IS_VALID( prv ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
@ -1735,11 +1735,12 @@ int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_conte
else
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
{
if( pub->pk_info != prv->pk_info )
if( MBEDTLS_PK_CTX_INFO( pub ) != MBEDTLS_PK_CTX_INFO( prv ) )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
}
return( pk_info_check_pair_func( prv->pk_info, pub->pk_ctx, prv->pk_ctx ) );
return( pk_info_check_pair_func( MBEDTLS_PK_CTX_INFO( prv ),
pub->pk_ctx, prv->pk_ctx ) );
}
/*
@ -1749,10 +1750,10 @@ size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx )
{
/* For backward compatibility, accept NULL or a context that
* isn't set up yet, and return a fake value that should be safe. */
if( ctx == NULL || ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( ctx == NULL || !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( 0 );
return( pk_info_get_bitlen( ctx->pk_info, ctx->pk_ctx ) );
return( pk_info_get_bitlen( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx ) );
}
/*
@ -1761,10 +1762,10 @@ size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx )
int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items )
{
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
return( pk_info_debug_func( ctx->pk_info, ctx->pk_ctx, items ) );
return( pk_info_debug_func( MBEDTLS_PK_CTX_INFO( ctx ), ctx->pk_ctx, items ) );
}
/*
@ -1772,10 +1773,10 @@ int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *item
*/
const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( ctx == NULL || !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( "invalid PK" );
return( pk_info_name( ctx->pk_info ) );
return( pk_info_name( MBEDTLS_PK_CTX_INFO( ctx ) ) );
}
/*
@ -1783,10 +1784,10 @@ const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx )
*/
mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == MBEDTLS_PK_INVALID_HANDLE )
if( ctx == NULL || !MBEDTLS_PK_CTX_IS_VALID( ctx ) )
return( MBEDTLS_PK_NONE );
return( pk_info_type( ctx->pk_info ) );
return( pk_info_type( MBEDTLS_PK_CTX_INFO( ctx ) ) );
}
#endif /* MBEDTLS_PK_C */