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Refactoring after CR and new unit test #3175

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Signed-off-by: Victor Krasnoshchok <ct3da21164@protonmail.ch>
This commit is contained in:
Victor Krasnoshchok 2020-08-29 22:54:37 +03:00
parent e79812ed4d
commit b3129ba119
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GPG Key ID: E2B10814BCFC65CE
3 changed files with 34 additions and 9 deletions
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25
library/entropy.c
View File

@ -466,25 +466,32 @@ int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx )
#if defined(MBEDTLS_FS_IO) #if defined(MBEDTLS_FS_IO)
int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path ) int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path )
{ {
int ret; int ret = 0;
FILE *f = NULL; FILE *f = NULL;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE]; unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 ) if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
if( ( f = fopen( path, "wb" ) ) != NULL )
{ {
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE ) ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
goto exit; goto exit;
ret = 0; }
if( ( f = fopen( path, "wb" ) ) == NULL )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
}
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
} }
exit: exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) ); mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( f ) if( f != NULL )
fclose( f ); fclose( f );
return( ret ); return( ret );

3
tests/suites/test_suite_entropy.data
View File

@ -7,6 +7,9 @@ entropy_seed_file:"data_files/entropy_seed":0
Entropy write/update seed file: nonexistent Entropy write/update seed file: nonexistent
entropy_seed_file:"no_such_dir/file":MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR entropy_seed_file:"no_such_dir/file":MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR
Entropy write/update seed file: base NV seed file
entropy_write_base_seed_file:0
Entropy no sources Entropy no sources
entropy_no_sources: entropy_no_sources:

15
tests/suites/test_suite_entropy.function
View File

@ -149,6 +149,21 @@ exit:
} }
/* END_CASE */ /* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_ENTROPY_NV_SEED:MBEDTLS_FS_IO */
void entropy_write_base_seed_file( int ret )
{
mbedtls_entropy_context ctx;
mbedtls_entropy_init( &ctx );
TEST_ASSERT( mbedtls_entropy_write_seed_file( &ctx, MBEDTLS_PLATFORM_STD_NV_SEED_FILE ) == ret );
TEST_ASSERT( mbedtls_entropy_update_seed_file( &ctx, MBEDTLS_PLATFORM_STD_NV_SEED_FILE ) == ret );
exit:
mbedtls_entropy_free( &ctx );
}
/* END_CASE */
/* BEGIN_CASE */ /* BEGIN_CASE */
void entropy_no_sources( ) void entropy_no_sources( )
{ {