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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
View file

@ -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)

171
library/md_wrap.c
View file

@ -71,20 +71,20 @@
#if defined(MBEDTLS_MD2_C)
static void md2_starts_wrap( void *ctx )
static int md2_starts_wrap( void *ctx )
{
mbedtls_md2_starts( (mbedtls_md2_context *) ctx );
return( mbedtls_md2_starts_ext( (mbedtls_md2_context *) ctx ) );
}
static void md2_update_wrap( void *ctx, const unsigned char *input,
static int md2_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_md2_update( (mbedtls_md2_context *) ctx, input, ilen );
return( mbedtls_md2_update_ext( (mbedtls_md2_context *) ctx, input, ilen ) );
}
static void md2_finish_wrap( void *ctx, unsigned char *output )
static int md2_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_md2_finish( (mbedtls_md2_context *) ctx, output );
return( mbedtls_md2_finish_ext( (mbedtls_md2_context *) ctx, output ) );
}
static void *md2_ctx_alloc( void )
@ -109,11 +109,11 @@ static void md2_clone_wrap( void *dst, const void *src )
(const mbedtls_md2_context *) src );
}
static void md2_process_wrap( void *ctx, const unsigned char *data )
static int md2_process_wrap( void *ctx, const unsigned char *data )
{
((void) data);
mbedtls_md2_process( (mbedtls_md2_context *) ctx );
return( mbedtls_internal_md2_process( (mbedtls_md2_context *) ctx ) );
}
const mbedtls_md_info_t mbedtls_md2_info = {
@ -124,7 +124,7 @@ const mbedtls_md_info_t mbedtls_md2_info = {
md2_starts_wrap,
md2_update_wrap,
md2_finish_wrap,
mbedtls_md2,
mbedtls_md2_ext,
md2_ctx_alloc,
md2_ctx_free,
md2_clone_wrap,
@ -135,20 +135,20 @@ const mbedtls_md_info_t mbedtls_md2_info = {
#if defined(MBEDTLS_MD4_C)
static void md4_starts_wrap( void *ctx )
static int md4_starts_wrap( void *ctx )
{
mbedtls_md4_starts( (mbedtls_md4_context *) ctx );
return( mbedtls_md4_starts_ext( (mbedtls_md4_context *) ctx ) );
}
static void md4_update_wrap( void *ctx, const unsigned char *input,
static int md4_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_md4_update( (mbedtls_md4_context *) ctx, input, ilen );
return( mbedtls_md4_update_ext( (mbedtls_md4_context *) ctx, input, ilen ) );
}
static void md4_finish_wrap( void *ctx, unsigned char *output )
static int md4_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_md4_finish( (mbedtls_md4_context *) ctx, output );
return( mbedtls_md4_finish_ext( (mbedtls_md4_context *) ctx, output ) );
}
static void *md4_ctx_alloc( void )
@ -170,12 +170,12 @@ static void md4_ctx_free( void *ctx )
static void md4_clone_wrap( void *dst, const void *src )
{
mbedtls_md4_clone( (mbedtls_md4_context *) dst,
(const mbedtls_md4_context *) src );
(const mbedtls_md4_context *) src );
}
static void md4_process_wrap( void *ctx, const unsigned char *data )
static int md4_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_md4_process( (mbedtls_md4_context *) ctx, data );
return( mbedtls_internal_md4_process( (mbedtls_md4_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_md4_info = {
@ -186,7 +186,7 @@ const mbedtls_md_info_t mbedtls_md4_info = {
md4_starts_wrap,
md4_update_wrap,
md4_finish_wrap,
mbedtls_md4,
mbedtls_md4_ext,
md4_ctx_alloc,
md4_ctx_free,
md4_clone_wrap,
@ -197,20 +197,20 @@ const mbedtls_md_info_t mbedtls_md4_info = {
#if defined(MBEDTLS_MD5_C)
static void md5_starts_wrap( void *ctx )
static int md5_starts_wrap( void *ctx )
{
mbedtls_md5_starts( (mbedtls_md5_context *) ctx );
return( mbedtls_md5_starts_ext( (mbedtls_md5_context *) ctx ) );
}
static void md5_update_wrap( void *ctx, const unsigned char *input,
static int md5_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_md5_update( (mbedtls_md5_context *) ctx, input, ilen );
return( mbedtls_md5_update_ext( (mbedtls_md5_context *) ctx, input, ilen ) );
}
static void md5_finish_wrap( void *ctx, unsigned char *output )
static int md5_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_md5_finish( (mbedtls_md5_context *) ctx, output );
return( mbedtls_md5_finish_ext( (mbedtls_md5_context *) ctx, output ) );
}
static void *md5_ctx_alloc( void )
@ -232,12 +232,12 @@ static void md5_ctx_free( void *ctx )
static void md5_clone_wrap( void *dst, const void *src )
{
mbedtls_md5_clone( (mbedtls_md5_context *) dst,
(const mbedtls_md5_context *) src );
(const mbedtls_md5_context *) src );
}
static void md5_process_wrap( void *ctx, const unsigned char *data )
static int md5_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_md5_process( (mbedtls_md5_context *) ctx, data );
return( mbedtls_internal_md5_process( (mbedtls_md5_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_md5_info = {
@ -248,7 +248,7 @@ const mbedtls_md_info_t mbedtls_md5_info = {
md5_starts_wrap,
md5_update_wrap,
md5_finish_wrap,
mbedtls_md5,
mbedtls_md5_ext,
md5_ctx_alloc,
md5_ctx_free,
md5_clone_wrap,
@ -259,20 +259,22 @@ const mbedtls_md_info_t mbedtls_md5_info = {
#if defined(MBEDTLS_RIPEMD160_C)
static void ripemd160_starts_wrap( void *ctx )
static int ripemd160_starts_wrap( void *ctx )
{
mbedtls_ripemd160_starts( (mbedtls_ripemd160_context *) ctx );
return( mbedtls_ripemd160_starts_ext( (mbedtls_ripemd160_context *) ctx ) );
}
static void ripemd160_update_wrap( void *ctx, const unsigned char *input,
static int ripemd160_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_ripemd160_update( (mbedtls_ripemd160_context *) ctx, input, ilen );
return( mbedtls_ripemd160_update_ext( (mbedtls_ripemd160_context *) ctx,
input, ilen ) );
}
static void ripemd160_finish_wrap( void *ctx, unsigned char *output )
static int ripemd160_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_ripemd160_finish( (mbedtls_ripemd160_context *) ctx, output );
return( mbedtls_ripemd160_finish_ext( (mbedtls_ripemd160_context *) ctx,
output ) );
}
static void *ripemd160_ctx_alloc( void )
@ -297,9 +299,10 @@ static void ripemd160_clone_wrap( void *dst, const void *src )
(const mbedtls_ripemd160_context *) src );
}
static void ripemd160_process_wrap( void *ctx, const unsigned char *data )
static int ripemd160_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_ripemd160_process( (mbedtls_ripemd160_context *) ctx, data );
return( mbedtls_internal_ripemd160_process(
(mbedtls_ripemd160_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_ripemd160_info = {
@ -310,7 +313,7 @@ const mbedtls_md_info_t mbedtls_ripemd160_info = {
ripemd160_starts_wrap,
ripemd160_update_wrap,
ripemd160_finish_wrap,
mbedtls_ripemd160,
mbedtls_ripemd160_ext,
ripemd160_ctx_alloc,
ripemd160_ctx_free,
ripemd160_clone_wrap,
@ -321,20 +324,21 @@ const mbedtls_md_info_t mbedtls_ripemd160_info = {
#if defined(MBEDTLS_SHA1_C)
static void sha1_starts_wrap( void *ctx )
static int sha1_starts_wrap( void *ctx )
{
mbedtls_sha1_starts( (mbedtls_sha1_context *) ctx );
return( mbedtls_sha1_starts_ext( (mbedtls_sha1_context *) ctx ) );
}
static void sha1_update_wrap( void *ctx, const unsigned char *input,
static int sha1_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_sha1_update( (mbedtls_sha1_context *) ctx, input, ilen );
return( mbedtls_sha1_update_ext( (mbedtls_sha1_context *) ctx,
input, ilen ) );
}
static void sha1_finish_wrap( void *ctx, unsigned char *output )
static int sha1_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_sha1_finish( (mbedtls_sha1_context *) ctx, output );
return( mbedtls_sha1_finish_ext( (mbedtls_sha1_context *) ctx, output ) );
}
static void *sha1_ctx_alloc( void )
@ -359,9 +363,10 @@ static void sha1_ctx_free( void *ctx )
mbedtls_free( ctx );
}
static void sha1_process_wrap( void *ctx, const unsigned char *data )
static int sha1_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_sha1_process( (mbedtls_sha1_context *) ctx, data );
return( mbedtls_internal_sha1_process( (mbedtls_sha1_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha1_info = {
@ -372,7 +377,7 @@ const mbedtls_md_info_t mbedtls_sha1_info = {
sha1_starts_wrap,
sha1_update_wrap,
sha1_finish_wrap,
mbedtls_sha1,
mbedtls_sha1_ext,
sha1_ctx_alloc,
sha1_ctx_free,
sha1_clone_wrap,
@ -386,26 +391,28 @@ const mbedtls_md_info_t mbedtls_sha1_info = {
*/
#if defined(MBEDTLS_SHA256_C)
static void sha224_starts_wrap( void *ctx )
static int sha224_starts_wrap( void *ctx )
{
mbedtls_sha256_starts( (mbedtls_sha256_context *) ctx, 1 );
return( mbedtls_sha256_starts_ext( (mbedtls_sha256_context *) ctx, 1 ) );
}
static void sha224_update_wrap( void *ctx, const unsigned char *input,
static int sha224_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_sha256_update( (mbedtls_sha256_context *) ctx, input, ilen );
return( mbedtls_sha256_update_ext( (mbedtls_sha256_context *) ctx,
input, ilen ) );
}
static void sha224_finish_wrap( void *ctx, unsigned char *output )
static int sha224_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_sha256_finish( (mbedtls_sha256_context *) ctx, output );
return( mbedtls_sha256_finish_ext( (mbedtls_sha256_context *) ctx,
output ) );
}
static void sha224_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
static int sha224_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_sha256( input, ilen, output, 1 );
return( mbedtls_sha256_ext( input, ilen, output, 1 ) );
}
static void *sha224_ctx_alloc( void )
@ -430,9 +437,10 @@ static void sha224_clone_wrap( void *dst, const void *src )
(const mbedtls_sha256_context *) src );
}
static void sha224_process_wrap( void *ctx, const unsigned char *data )
static int sha224_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_sha256_process( (mbedtls_sha256_context *) ctx, data );
return( mbedtls_internal_sha256_process( (mbedtls_sha256_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha224_info = {
@ -450,15 +458,15 @@ const mbedtls_md_info_t mbedtls_sha224_info = {
sha224_process_wrap,
};
static void sha256_starts_wrap( void *ctx )
static int sha256_starts_wrap( void *ctx )
{
mbedtls_sha256_starts( (mbedtls_sha256_context *) ctx, 0 );
return( mbedtls_sha256_starts_ext( (mbedtls_sha256_context *) ctx, 0 ) );
}
static void sha256_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
static int sha256_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_sha256( input, ilen, output, 0 );
return( mbedtls_sha256_ext( input, ilen, output, 0 ) );
}
const mbedtls_md_info_t mbedtls_sha256_info = {
@ -480,26 +488,28 @@ const mbedtls_md_info_t mbedtls_sha256_info = {
#if defined(MBEDTLS_SHA512_C)
static void sha384_starts_wrap( void *ctx )
static int sha384_starts_wrap( void *ctx )
{
mbedtls_sha512_starts( (mbedtls_sha512_context *) ctx, 1 );
return( mbedtls_sha512_starts_ext( (mbedtls_sha512_context *) ctx, 1 ) );
}
static void sha384_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
static int sha384_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
mbedtls_sha512_update( (mbedtls_sha512_context *) ctx, input, ilen );
return( mbedtls_sha512_update_ext( (mbedtls_sha512_context *) ctx,
input, ilen ) );
}
static void sha384_finish_wrap( void *ctx, unsigned char *output )
static int sha384_finish_wrap( void *ctx, unsigned char *output )
{
mbedtls_sha512_finish( (mbedtls_sha512_context *) ctx, output );
return( mbedtls_sha512_finish_ext( (mbedtls_sha512_context *) ctx,
output ) );
}
static void sha384_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
static int sha384_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_sha512( input, ilen, output, 1 );
return( mbedtls_sha512_ext( input, ilen, output, 1 ) );
}
static void *sha384_ctx_alloc( void )
@ -524,9 +534,10 @@ static void sha384_clone_wrap( void *dst, const void *src )
(const mbedtls_sha512_context *) src );
}
static void sha384_process_wrap( void *ctx, const unsigned char *data )
static int sha384_process_wrap( void *ctx, const unsigned char *data )
{
mbedtls_sha512_process( (mbedtls_sha512_context *) ctx, data );
return( mbedtls_internal_sha512_process( (mbedtls_sha512_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha384_info = {
@ -544,15 +555,15 @@ const mbedtls_md_info_t mbedtls_sha384_info = {
sha384_process_wrap,
};
static void sha512_starts_wrap( void *ctx )
static int sha512_starts_wrap( void *ctx )
{
mbedtls_sha512_starts( (mbedtls_sha512_context *) ctx, 0 );
return( mbedtls_sha512_starts_ext( (mbedtls_sha512_context *) ctx, 0 ) );
}
static void sha512_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
static int sha512_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_sha512( input, ilen, output, 0 );
return( mbedtls_sha512_ext( input, ilen, output, 0 ) );
}
const mbedtls_md_info_t mbedtls_sha512_info = {