/* Frees an external key
* Returns 1 if successful or -1 on error
*/
int libbde_external_key_free(
libbde_external_key_t **external_key,
libcerror_error_t **error )
{
static char *function = "libbde_external_key_free";
int result = 1;
if( external_key == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid external key.",
function );
return( -1 );
}
if( *external_key != NULL )
{
if( ( *external_key )->key != NULL )
{
if( libbde_key_free(
&( ( *external_key )->key ),
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free key.",
function );
result = -1;
}
}
if( libcdata_array_free(
&( ( *external_key )->entries_array ),
(int(*)(intptr_t **, libcerror_error_t **)) &libbde_metadata_entry_free,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free entries array.",
function );
result = -1;
}
memory_free(
*external_key );
*external_key = NULL;
}
return( result );
}
/* Reads a external key from the metadata entry
* Returns 1 if successful or -1 on error
*/
int libbde_external_key_read(
libbde_external_key_t *external_key,
libbde_metadata_entry_t *metadata_entry,
libcerror_error_t **error )
{
libbde_key_t *key = NULL;
libbde_metadata_entry_t *property_metadata_entry = NULL;
uint8_t *value_data = NULL;
static char *function = "libbde_external_key_read";
size_t value_data_size = 0;
ssize_t read_count = 0;
int property_metadata_entry_index = 0;
#if defined( HAVE_DEBUG_OUTPUT )
libcstring_system_character_t filetime_string[ 32 ];
libcstring_system_character_t guid_string[ 48 ];
libfdatetime_filetime_t *filetime = NULL;
libfguid_identifier_t *guid = NULL;
int result = 0;
#endif
if( external_key == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid external key.",
function );
return( -1 );
}
if( metadata_entry == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid metadata entry.",
function );
return( -1 );
}
if( metadata_entry->value_type != LIBBDE_VALUE_TYPE_EXTERNAL_KEY )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: invalid metadata entry - unsupported value type: 0x%04" PRIx16 ".",
function,
metadata_entry->value_type );
return( -1 );
}
value_data = metadata_entry->value_data;
value_data_size = metadata_entry->value_data_size;
if( value_data_size < sizeof( bde_metadata_entry_external_key_header_t ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: value data size value out of bounds.",
function );
return( -1 );
}
if( memory_copy(
external_key->identifier,
( (bde_metadata_entry_external_key_header_t *) value_data )->identifier,
16 ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_COPY_FAILED,
"%s: unable to copy volume identifier.",
function );
goto on_error;
}
#if defined( HAVE_DEBUG_OUTPUT )
if( libcnotify_verbose != 0 )
{
if( libfguid_identifier_initialize(
&guid,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
"%s: unable to create GUID.",
function );
goto on_error;
}
if( libfguid_identifier_copy_from_byte_stream(
guid,
( (bde_metadata_entry_external_key_header_t *) value_data )->identifier,
16,
LIBFGUID_ENDIAN_LITTLE,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy byte stream to GUID.",
function );
goto on_error;
}
#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
result = libfguid_identifier_copy_to_utf16_string(
guid,
(uint16_t *) guid_string,
48,
LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,
error );
#else
result = libfguid_identifier_copy_to_utf8_string(
guid,
(uint8_t *) guid_string,
48,
LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,
error );
#endif
if( result != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy GUID to string.",
function );
goto on_error;
}
libcnotify_printf(
"%s: identifier\t\t\t\t\t: %" PRIs_LIBCSTRING_SYSTEM "\n",
function,
guid_string );
if( libfguid_identifier_free(
&guid,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free GUID.",
function );
goto on_error;
}
if( libfdatetime_filetime_initialize(
&filetime,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
"%s: unable to create filetime.",
function );
goto on_error;
}
if( libfdatetime_filetime_copy_from_byte_stream(
filetime,
( (bde_metadata_entry_external_key_header_t *) value_data )->modification_time,
8,
LIBFDATETIME_ENDIAN_LITTLE,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_SET_FAILED,
"%s: unable to copy filetime from byte stream.",
function );
goto on_error;
}
#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
result = libfdatetime_filetime_copy_to_utf16_string(
filetime,
(uint16_t *) filetime_string,
32,
LIBFDATETIME_STRING_FORMAT_TYPE_CTIME | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS,
error );
#else
result = libfdatetime_filetime_copy_to_utf8_string(
filetime,
(uint8_t *) filetime_string,
32,
LIBFDATETIME_STRING_FORMAT_TYPE_CTIME | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS,
error );
#endif
if( result != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_SET_FAILED,
"%s: unable to copy filetime to string.",
function );
goto on_error;
}
libcnotify_printf(
"%s: modification time\t\t\t\t: %" PRIs_LIBCSTRING_SYSTEM " UTC\n",
function,
filetime_string );
if( libfdatetime_filetime_free(
&filetime,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free filetime.",
function );
goto on_error;
}
libcnotify_printf(
"\n" );
}
#endif
value_data += sizeof( bde_metadata_entry_external_key_header_t );
value_data_size -= sizeof( bde_metadata_entry_external_key_header_t );
while( value_data_size >= sizeof( bde_metadata_entry_v1_t ) )
{
if( memory_compare(
value_data,
libbde_metadata_entry_empty,
sizeof( bde_metadata_entry_v1_t ) ) == 0 )
{
break;
}
if( libbde_metadata_entry_initialize(
&property_metadata_entry,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
"%s: unable to create property metadata entry.",
function );
goto on_error;
}
read_count = libbde_metadata_entry_read(
property_metadata_entry,
value_data,
value_data_size,
error );
if( read_count == -1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_IO,
LIBCERROR_IO_ERROR_READ_FAILED,
"%s: unable to read property metadata entry.",
function );
goto on_error;
}
value_data += read_count;
value_data_size -= read_count;
if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_KEY )
{
if( libbde_key_initialize(
&key,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
"%s: unable to create key.",
function );
goto on_error;
}
if( libbde_key_read(
key,
property_metadata_entry,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_IO,
LIBCERROR_IO_ERROR_READ_FAILED,
"%s: unable to read key metadata entry.",
function );
goto on_error;
}
if( external_key->key == NULL )
{
external_key->key = key;
key = NULL;
}
if( key != NULL )
{
if( libbde_key_free(
&key,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free key.",
function );
goto on_error;
}
}
}
else if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_UNICODE_STRING )
{
#if defined( HAVE_DEBUG_OUTPUT )
if( libbde_metadata_entry_read_string(
property_metadata_entry,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_IO,
LIBCERROR_IO_ERROR_READ_FAILED,
"%s: unable to read string from property metadata entry.",
function );
goto on_error;
}
#endif
if( external_key->string_entry == NULL )
{
external_key->string_entry = property_metadata_entry;
}
}
if( libcdata_array_append_entry(
external_key->entries_array,
&property_metadata_entry_index,
(intptr_t *) property_metadata_entry,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
"%s: unable to append property metadata entry to entries array.",
function );
goto on_error;
}
property_metadata_entry = NULL;
}
#if defined( HAVE_DEBUG_OUTPUT )
if( libcnotify_verbose != 0 )
{
if( value_data_size > 0 )
{
libcnotify_printf(
"%s: trailing data:\n",
function );
libcnotify_print_data(
value_data,
value_data_size,
LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
}
}
#endif
return( 1 );
on_error:
#if defined( HAVE_DEBUG_OUTPUT )
if( guid != NULL )
{
libfguid_identifier_free(
&guid,
NULL );
}
if( filetime != NULL )
{
libfdatetime_filetime_free(
&filetime,
NULL );
}
#endif
if( key != NULL )
{
libbde_key_free(
&key,
NULL );
}
if( property_metadata_entry != NULL )
{
libbde_metadata_entry_free(
&property_metadata_entry,
NULL );
}
return( -1 );
}
/* Frees a volume master key
* Returns 1 if successful or -1 on error
*/
int libbde_volume_master_key_free(
libbde_volume_master_key_t **volume_master_key,
libcerror_error_t **error )
{
static char *function = "libbde_volume_master_key_free";
int result = 1;
if( volume_master_key == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid volume master key.",
function );
return( -1 );
}
if( *volume_master_key != NULL )
{
if( ( *volume_master_key )->key != NULL )
{
if( libbde_key_free(
&( ( *volume_master_key )->key ),
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free key.",
function );
result = -1;
}
}
if( ( *volume_master_key )->stretch_key != NULL )
{
if( libbde_stretch_key_free(
&( ( *volume_master_key )->stretch_key ),
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free stretch key.",
function );
result = -1;
}
}
if( ( *volume_master_key )->aes_ccm_encrypted_key != NULL )
{
if( libbde_aes_ccm_encrypted_key_free(
&( ( *volume_master_key )->aes_ccm_encrypted_key ),
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free AES-CCM encrypted key.",
function );
result = -1;
}
}
if( libcdata_array_free(
&( ( *volume_master_key )->entries_array ),
(int(*)(intptr_t **, libcerror_error_t **)) &libbde_metadata_entry_free,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free entries array.",
function );
result = -1;
}
memory_free(
*volume_master_key );
*volume_master_key = NULL;
}
return( result );
}
