305 lines
9.6 KiB
C
305 lines
9.6 KiB
C
/* BEGIN_HEADER */
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/* This test file is specific to the ITS implementation in PSA Crypto
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* on top of stdio. It expects to know what the stdio name of a file is
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* based on its keystore name.
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*
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* Note that if you need to make a change that affects how files are
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* stored, this may indicate that the key store is changing in a
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* backward-incompatible way! Think carefully about backward compatibility
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* before changing how test data is constructed or validated.
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*/
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#include "../library/psa_crypto_its.h"
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#include "test/psa_helpers.h"
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/* Internal definitions of the implementation, copied for the sake of
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* some of the tests and of the cleanup code. */
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#define PSA_ITS_STORAGE_PREFIX ""
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#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08lx%08lx"
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#define PSA_ITS_STORAGE_SUFFIX ".psa_its"
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#define PSA_ITS_STORAGE_FILENAME_LENGTH \
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( sizeof( PSA_ITS_STORAGE_PREFIX ) - 1 + /*prefix without terminating 0*/ \
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16 + /*UID (64-bit number in hex)*/ \
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16 + /*UID (64-bit number in hex)*/ \
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sizeof( PSA_ITS_STORAGE_SUFFIX ) - 1 + /*suffix without terminating 0*/ \
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1 /*terminating null byte*/ )
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#define PSA_ITS_STORAGE_TEMP \
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PSA_ITS_STORAGE_PREFIX "tempfile" PSA_ITS_STORAGE_SUFFIX
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static void psa_its_fill_filename( psa_storage_uid_t uid, char *filename )
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{
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/* Break up the UID into two 32-bit pieces so as not to rely on
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* long long support in snprintf. */
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mbedtls_snprintf( filename, PSA_ITS_STORAGE_FILENAME_LENGTH,
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"%s" PSA_ITS_STORAGE_FILENAME_PATTERN "%s",
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PSA_ITS_STORAGE_PREFIX,
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(unsigned long) ( uid >> 32 ),
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(unsigned long) ( uid & 0xffffffff ),
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PSA_ITS_STORAGE_SUFFIX );
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}
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/* Maximum uid used by the test, recorded so that cleanup() can delete
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* all files. 0xffffffffffffffff is always cleaned up, so it does not
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* need to and should not be taken into account for uid_max. */
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static psa_storage_uid_t uid_max = 0;
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static void cleanup( void )
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{
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/* Call remove() on all the files that a test might have created.
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* We ignore the error if the file exists but remove() fails because
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* it can't be checked portably (except by attempting to open the file
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* first, which is needlessly slow and complicated here). A failure of
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* remove() on an existing file is very unlikely anyway and would not
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* have significant consequences other than perhaps failing the next
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* test case. */
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char filename[PSA_ITS_STORAGE_FILENAME_LENGTH];
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psa_storage_uid_t uid;
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for( uid = 0; uid < uid_max; uid++ )
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{
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psa_its_fill_filename( uid, filename );
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(void) remove( filename );
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}
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psa_its_fill_filename( (psa_storage_uid_t)( -1 ), filename );
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(void) remove( filename );
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(void) remove( PSA_ITS_STORAGE_TEMP );
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uid_max = 0;
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}
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static psa_status_t psa_its_set_wrap( psa_storage_uid_t uid,
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uint32_t data_length,
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const void *p_data,
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psa_storage_create_flags_t create_flags )
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{
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if( uid_max != (psa_storage_uid_t)( -1 ) && uid_max < uid )
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uid_max = uid;
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return( psa_its_set( uid, data_length, p_data, create_flags ) );
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}
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_PSA_ITS_FILE_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void set_get_remove( int uid_arg, int flags_arg, data_t *data )
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{
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psa_storage_uid_t uid = uid_arg;
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uint32_t flags = flags_arg;
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struct psa_storage_info_t info;
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unsigned char *buffer = NULL;
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size_t ret_len = 0;
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ASSERT_ALLOC( buffer, data->len );
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PSA_ASSERT( psa_its_set_wrap( uid, data->len, data->x, flags ) );
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PSA_ASSERT( psa_its_get_info( uid, &info ) );
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TEST_ASSERT( info.size == data->len );
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TEST_ASSERT( info.flags == flags );
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PSA_ASSERT( psa_its_get( uid, 0, data->len, buffer, &ret_len ) );
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ASSERT_COMPARE( data->x, data->len, buffer, ret_len );
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PSA_ASSERT( psa_its_remove( uid ) );
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exit:
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mbedtls_free( buffer );
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void set_overwrite( int uid_arg,
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int flags1_arg, data_t *data1,
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int flags2_arg, data_t *data2 )
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{
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psa_storage_uid_t uid = uid_arg;
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uint32_t flags1 = flags1_arg;
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uint32_t flags2 = flags2_arg;
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struct psa_storage_info_t info;
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unsigned char *buffer = NULL;
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size_t ret_len = 0;
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ASSERT_ALLOC( buffer, MAX( data1->len, data2->len ) );
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PSA_ASSERT( psa_its_set_wrap( uid, data1->len, data1->x, flags1 ) );
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PSA_ASSERT( psa_its_get_info( uid, &info ) );
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TEST_ASSERT( info.size == data1->len );
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TEST_ASSERT( info.flags == flags1 );
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PSA_ASSERT( psa_its_get( uid, 0, data1->len, buffer, &ret_len ) );
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ASSERT_COMPARE( data1->x, data1->len, buffer, ret_len );
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PSA_ASSERT( psa_its_set_wrap( uid, data2->len, data2->x, flags2 ) );
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PSA_ASSERT( psa_its_get_info( uid, &info ) );
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TEST_ASSERT( info.size == data2->len );
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TEST_ASSERT( info.flags == flags2 );
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ret_len = 0;
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PSA_ASSERT( psa_its_get( uid, 0, data2->len, buffer, &ret_len ) );
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ASSERT_COMPARE( data2->x, data2->len, buffer, ret_len );
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PSA_ASSERT( psa_its_remove( uid ) );
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exit:
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mbedtls_free( buffer );
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void set_multiple( int first_id, int count )
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{
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psa_storage_uid_t uid0 = first_id;
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psa_storage_uid_t uid;
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char stored[40];
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char retrieved[40];
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size_t ret_len = 0;
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memset( stored, '.', sizeof( stored ) );
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for( uid = uid0; uid < uid0 + count; uid++ )
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{
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mbedtls_snprintf( stored, sizeof( stored ),
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"Content of file 0x%08lx", (unsigned long) uid );
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PSA_ASSERT( psa_its_set_wrap( uid, sizeof( stored ), stored, 0 ) );
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}
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for( uid = uid0; uid < uid0 + count; uid++ )
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{
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mbedtls_snprintf( stored, sizeof( stored ),
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"Content of file 0x%08lx", (unsigned long) uid );
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PSA_ASSERT( psa_its_get( uid, 0, sizeof( stored ), retrieved, &ret_len ) );
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ASSERT_COMPARE( retrieved, ret_len,
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stored, sizeof( stored ) );
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PSA_ASSERT( psa_its_remove( uid ) );
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TEST_ASSERT( psa_its_get( uid, 0, 0, NULL, NULL ) ==
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PSA_ERROR_DOES_NOT_EXIST );
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}
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exit:
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void nonexistent( int uid_arg, int create_and_remove )
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{
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psa_storage_uid_t uid = uid_arg;
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struct psa_storage_info_t info;
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if( create_and_remove )
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{
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PSA_ASSERT( psa_its_set_wrap( uid, 0, NULL, 0 ) );
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PSA_ASSERT( psa_its_remove( uid ) );
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}
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TEST_ASSERT( psa_its_remove( uid ) == PSA_ERROR_DOES_NOT_EXIST );
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TEST_ASSERT( psa_its_get_info( uid, &info ) ==
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PSA_ERROR_DOES_NOT_EXIST );
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TEST_ASSERT( psa_its_get( uid, 0, 0, NULL, NULL ) ==
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PSA_ERROR_DOES_NOT_EXIST );
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exit:
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void get_at( int uid_arg, data_t *data,
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int offset, int length_arg,
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int expected_status )
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{
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psa_storage_uid_t uid = uid_arg;
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unsigned char *buffer = NULL;
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psa_status_t status;
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size_t length = length_arg >= 0 ? length_arg : 0;
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unsigned char *trailer;
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size_t i;
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size_t ret_len = 0;
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ASSERT_ALLOC( buffer, length + 16 );
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trailer = buffer + length;
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memset( trailer, '-', 16 );
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PSA_ASSERT( psa_its_set_wrap( uid, data->len, data->x, 0 ) );
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status = psa_its_get( uid, offset, length_arg, buffer, &ret_len );
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TEST_ASSERT( status == (psa_status_t) expected_status );
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if( status == PSA_SUCCESS )
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ASSERT_COMPARE( data->x + offset, (size_t) length_arg,
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buffer, ret_len );
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for( i = 0; i < 16; i++ )
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TEST_ASSERT( trailer[i] == '-' );
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PSA_ASSERT( psa_its_remove( uid ) );
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exit:
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mbedtls_free( buffer );
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void get_fail( int uid_arg, data_t *data,
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int overwrite_magic, int cut_header,
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int expected_status )
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{
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psa_storage_uid_t uid = uid_arg;
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unsigned char *buffer = NULL;
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psa_status_t status;
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size_t n;
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size_t ret_len = 0;
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char filename[PSA_ITS_STORAGE_FILENAME_LENGTH];
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FILE *stream = NULL;
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char bad_char = 'X';
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PSA_ASSERT( psa_its_set_wrap( uid, data->len, data->x, 0 ) );
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psa_its_fill_filename( uid, filename );
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stream = fopen( filename, "rb+" );
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TEST_ASSERT( NULL != stream );
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if( 0 != overwrite_magic )
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{
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/* Overwrite the 1st byte of the file, the ITS magic number */
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TEST_ASSERT( fseek( stream, 0, SEEK_SET ) == 0 );
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n = fwrite( &bad_char, 1, 1, stream );
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TEST_ASSERT( 1 == n );
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}
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if( 0 != cut_header )
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{
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/* Reopen file and truncate it to 0 byte by specifying the 'w' flag */
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stream = freopen( filename, "wb", stream );
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TEST_ASSERT( NULL != stream );
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}
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fclose( stream );
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stream = NULL;
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status = psa_its_get( uid, 0, 0, buffer, &ret_len );
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TEST_ASSERT( status == (psa_status_t) expected_status );
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TEST_ASSERT( 0 == ret_len );
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PSA_ASSERT( psa_its_remove( uid ) );
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/* Check if the file is really deleted. */
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stream = fopen( filename, "rb" );
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TEST_ASSERT( NULL == stream );
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exit:
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if( stream != NULL )
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fclose( stream );
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mbedtls_free( buffer );
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cleanup( );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void set_fail( int uid_arg, data_t *data,
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int expected_status )
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{
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psa_storage_uid_t uid = uid_arg;
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TEST_ASSERT( psa_its_set_wrap( uid, data->len, data->x, 0 ) ==
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(psa_status_t) expected_status );
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exit:
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cleanup( );
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}
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/* END_CASE */
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