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Implement md_file in the MD layer

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Manuel Pégourié-Gonnard 2015-05-28 14:44:00 +02:00
parent eb0d8706ce
commit bfffa908a6
5 changed files with 40 additions and 127 deletions
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2
include/mbedtls/md.h
View file

@ -247,6 +247,7 @@ int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output );
int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen, int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
unsigned char *output ); unsigned char *output );
#if defined(MBEDTLS_FS_IO)
/** /**
* \brief Output = message_digest( file contents ) * \brief Output = message_digest( file contents )
* *
@ -260,6 +261,7 @@ int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, si
*/ */
int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path,
unsigned char *output ); unsigned char *output );
#endif /* MBEDTLS_FS_IO */
/** /**
* \brief Set HMAC key and prepare to authenticate a new message. * \brief Set HMAC key and prepare to authenticate a new message.

3
include/mbedtls/md_internal.h
View file

@ -71,9 +71,6 @@ struct mbedtls_md_info_t
void (*digest_func)( const unsigned char *input, size_t ilen, void (*digest_func)( const unsigned char *input, size_t ilen,
unsigned char *output ); unsigned char *output );
/** Generic file digest function */
int (*file_func)( const char *path, unsigned char *output );
/** Allocate a new context */ /** Allocate a new context */
void * (*ctx_alloc_func)( void ); void * (*ctx_alloc_func)( void );

50
library/md.c
View file

@ -45,9 +45,8 @@
#include <string.h> #include <string.h>
#if defined(_MSC_VER) && !defined strcasecmp && !defined(EFIX64) && \ #if defined(MBEDTLS_FS_IO)
!defined(EFI32) #include <stdio.h>
#define strcasecmp _stricmp
#endif #endif
/* Implementation that should never be optimized out by the compiler */ /* Implementation that should never be optimized out by the compiler */
@ -270,28 +269,49 @@ int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, si
return( 0 ); return( 0 );
} }
#if defined(MBEDTLS_FS_IO)
int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output ) int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output )
{ {
#if defined(MBEDTLS_FS_IO)
int ret; int ret;
#endif FILE *f;
size_t n;
mbedtls_md_context_t ctx;
unsigned char buf[1024];
if( md_info == NULL ) if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
#if defined(MBEDTLS_FS_IO) mbedtls_md_init( &ctx );
ret = md_info->file_func( path, output );
if( ret != 0 ) if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_MD_FILE_IO_ERROR + ret ); {
ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
goto cleanup;
}
if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
goto cleanup;
md_info->starts_func( ctx.md_ctx );
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
md_info->update_func( ctx.md_ctx, buf, n );
if( ferror( f ) != 0 )
{
ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
goto cleanup;
}
md_info->finish_func( ctx.md_ctx, output );
cleanup:
fclose( f );
mbedtls_md_free( &ctx );
return( ret ); return( ret );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_FS_IO */
} }
#endif /* MBEDTLS_FS_IO */
int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen ) int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )
{ {

108
library/md_wrap.c
View file

@ -93,17 +93,6 @@ static void md2_finish_wrap( void *ctx, unsigned char *output )
mbedtls_md2_finish( (mbedtls_md2_context *) ctx, output ); mbedtls_md2_finish( (mbedtls_md2_context *) ctx, output );
} }
static int md2_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_md2_file( path, output );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * md2_ctx_alloc( void ) static void * md2_ctx_alloc( void )
{ {
return mbedtls_calloc( 1, sizeof( mbedtls_md2_context ) ); return mbedtls_calloc( 1, sizeof( mbedtls_md2_context ) );
@ -131,7 +120,6 @@ const mbedtls_md_info_t mbedtls_md2_info = {
md2_update_wrap, md2_update_wrap,
md2_finish_wrap, md2_finish_wrap,
mbedtls_md2, mbedtls_md2,
md2_file_wrap,
md2_ctx_alloc, md2_ctx_alloc,
md2_ctx_free, md2_ctx_free,
md2_process_wrap, md2_process_wrap,
@ -157,17 +145,6 @@ static void md4_finish_wrap( void *ctx, unsigned char *output )
mbedtls_md4_finish( (mbedtls_md4_context *) ctx, output ); mbedtls_md4_finish( (mbedtls_md4_context *) ctx, output );
} }
static int md4_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_md4_file( path, output );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void *md4_ctx_alloc( void ) static void *md4_ctx_alloc( void )
{ {
return mbedtls_calloc( 1, sizeof( mbedtls_md4_context ) ); return mbedtls_calloc( 1, sizeof( mbedtls_md4_context ) );
@ -193,7 +170,6 @@ const mbedtls_md_info_t mbedtls_md4_info = {
md4_update_wrap, md4_update_wrap,
md4_finish_wrap, md4_finish_wrap,
mbedtls_md4, mbedtls_md4,
md4_file_wrap,
md4_ctx_alloc, md4_ctx_alloc,
md4_ctx_free, md4_ctx_free,
md4_process_wrap, md4_process_wrap,
@ -219,17 +195,6 @@ static void md5_finish_wrap( void *ctx, unsigned char *output )
mbedtls_md5_finish( (mbedtls_md5_context *) ctx, output ); mbedtls_md5_finish( (mbedtls_md5_context *) ctx, output );
} }
static int md5_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_md5_file( path, output );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * md5_ctx_alloc( void ) static void * md5_ctx_alloc( void )
{ {
return mbedtls_calloc( 1, sizeof( mbedtls_md5_context ) ); return mbedtls_calloc( 1, sizeof( mbedtls_md5_context ) );
@ -255,7 +220,6 @@ const mbedtls_md_info_t mbedtls_md5_info = {
md5_update_wrap, md5_update_wrap,
md5_finish_wrap, md5_finish_wrap,
mbedtls_md5, mbedtls_md5,
md5_file_wrap,
md5_ctx_alloc, md5_ctx_alloc,
md5_ctx_free, md5_ctx_free,
md5_process_wrap, md5_process_wrap,
@ -281,17 +245,6 @@ static void ripemd160_finish_wrap( void *ctx, unsigned char *output )
mbedtls_ripemd160_finish( (mbedtls_ripemd160_context *) ctx, output ); mbedtls_ripemd160_finish( (mbedtls_ripemd160_context *) ctx, output );
} }
static int ripemd160_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_ripemd160_file( path, output );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * ripemd160_ctx_alloc( void ) static void * ripemd160_ctx_alloc( void )
{ {
mbedtls_ripemd160_context *ctx; mbedtls_ripemd160_context *ctx;
@ -325,7 +278,6 @@ const mbedtls_md_info_t mbedtls_ripemd160_info = {
ripemd160_update_wrap, ripemd160_update_wrap,
ripemd160_finish_wrap, ripemd160_finish_wrap,
mbedtls_ripemd160, mbedtls_ripemd160,
ripemd160_file_wrap,
ripemd160_ctx_alloc, ripemd160_ctx_alloc,
ripemd160_ctx_free, ripemd160_ctx_free,
ripemd160_process_wrap, ripemd160_process_wrap,
@ -351,17 +303,6 @@ static void sha1_finish_wrap( void *ctx, unsigned char *output )
mbedtls_sha1_finish( (mbedtls_sha1_context *) ctx, output ); mbedtls_sha1_finish( (mbedtls_sha1_context *) ctx, output );
} }
static int sha1_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_sha1_file( path, output );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * sha1_ctx_alloc( void ) static void * sha1_ctx_alloc( void )
{ {
mbedtls_sha1_context *ctx; mbedtls_sha1_context *ctx;
@ -395,7 +336,6 @@ const mbedtls_md_info_t mbedtls_sha1_info = {
sha1_update_wrap, sha1_update_wrap,
sha1_finish_wrap, sha1_finish_wrap,
mbedtls_sha1, mbedtls_sha1,
sha1_file_wrap,
sha1_ctx_alloc, sha1_ctx_alloc,
sha1_ctx_free, sha1_ctx_free,
sha1_process_wrap, sha1_process_wrap,
@ -430,17 +370,6 @@ static void sha224_wrap( const unsigned char *input, size_t ilen,
mbedtls_sha256( input, ilen, output, 1 ); mbedtls_sha256( input, ilen, output, 1 );
} }
static int sha224_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_sha256_file( path, output, 1 );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * sha224_ctx_alloc( void ) static void * sha224_ctx_alloc( void )
{ {
return mbedtls_calloc( 1, sizeof( mbedtls_sha256_context ) ); return mbedtls_calloc( 1, sizeof( mbedtls_sha256_context ) );
@ -466,7 +395,6 @@ const mbedtls_md_info_t mbedtls_sha224_info = {
sha224_update_wrap, sha224_update_wrap,
sha224_finish_wrap, sha224_finish_wrap,
sha224_wrap, sha224_wrap,
sha224_file_wrap,
sha224_ctx_alloc, sha224_ctx_alloc,
sha224_ctx_free, sha224_ctx_free,
sha224_process_wrap, sha224_process_wrap,
@ -494,17 +422,6 @@ static void sha256_wrap( const unsigned char *input, size_t ilen,
mbedtls_sha256( input, ilen, output, 0 ); mbedtls_sha256( input, ilen, output, 0 );
} }
static int sha256_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_sha256_file( path, output, 0 );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * sha256_ctx_alloc( void ) static void * sha256_ctx_alloc( void )
{ {
mbedtls_sha256_context *ctx; mbedtls_sha256_context *ctx;
@ -538,7 +455,6 @@ const mbedtls_md_info_t mbedtls_sha256_info = {
sha256_update_wrap, sha256_update_wrap,
sha256_finish_wrap, sha256_finish_wrap,
sha256_wrap, sha256_wrap,
sha256_file_wrap,
sha256_ctx_alloc, sha256_ctx_alloc,
sha256_ctx_free, sha256_ctx_free,
sha256_process_wrap, sha256_process_wrap,
@ -570,17 +486,6 @@ static void sha384_wrap( const unsigned char *input, size_t ilen,
mbedtls_sha512( input, ilen, output, 1 ); mbedtls_sha512( input, ilen, output, 1 );
} }
static int sha384_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_sha512_file( path, output, 1 );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * sha384_ctx_alloc( void ) static void * sha384_ctx_alloc( void )
{ {
return mbedtls_calloc( 1, sizeof( mbedtls_sha512_context ) ); return mbedtls_calloc( 1, sizeof( mbedtls_sha512_context ) );
@ -606,7 +511,6 @@ const mbedtls_md_info_t mbedtls_sha384_info = {
sha384_update_wrap, sha384_update_wrap,
sha384_finish_wrap, sha384_finish_wrap,
sha384_wrap, sha384_wrap,
sha384_file_wrap,
sha384_ctx_alloc, sha384_ctx_alloc,
sha384_ctx_free, sha384_ctx_free,
sha384_process_wrap, sha384_process_wrap,
@ -634,17 +538,6 @@ static void sha512_wrap( const unsigned char *input, size_t ilen,
mbedtls_sha512( input, ilen, output, 0 ); mbedtls_sha512( input, ilen, output, 0 );
} }
static int sha512_file_wrap( const char *path, unsigned char *output )
{
#if defined(MBEDTLS_FS_IO)
return mbedtls_sha512_file( path, output, 0 );
#else
((void) path);
((void) output);
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
#endif
}
static void * sha512_ctx_alloc( void ) static void * sha512_ctx_alloc( void )
{ {
mbedtls_sha512_context *ctx; mbedtls_sha512_context *ctx;
@ -678,7 +571,6 @@ const mbedtls_md_info_t mbedtls_sha512_info = {
sha512_update_wrap, sha512_update_wrap,
sha512_finish_wrap, sha512_finish_wrap,
sha512_wrap, sha512_wrap,
sha512_file_wrap,
sha512_ctx_alloc, sha512_ctx_alloc,
sha512_ctx_free, sha512_ctx_free,
sha512_process_wrap, sha512_process_wrap,

2
tests/suites/test_suite_md.function
View file

@ -68,7 +68,9 @@ void md_null_args( )
TEST_ASSERT( mbedtls_md( NULL, buf, 1, buf ) == MBEDTLS_ERR_MD_BAD_INPUT_DATA ); TEST_ASSERT( mbedtls_md( NULL, buf, 1, buf ) == MBEDTLS_ERR_MD_BAD_INPUT_DATA );
#if defined(MBEDTLS_FS_IO)
TEST_ASSERT( mbedtls_md_file( NULL, "", buf ) == MBEDTLS_ERR_MD_BAD_INPUT_DATA ); TEST_ASSERT( mbedtls_md_file( NULL, "", buf ) == MBEDTLS_ERR_MD_BAD_INPUT_DATA );
#endif
TEST_ASSERT( mbedtls_md_hmac_starts( NULL, buf, 1 ) TEST_ASSERT( mbedtls_md_hmac_starts( NULL, buf, 1 )
== MBEDTLS_ERR_MD_BAD_INPUT_DATA ); == MBEDTLS_ERR_MD_BAD_INPUT_DATA );