* @metadata_resource_len: The length of @metadata_resource. It must be at
* least 8 bytes.
* @sd_ret: A pointer to a pointer to a wim_security_data structure that
* @metadata_resource_len: The length of @metadata_resource. It must be at
* least 8 bytes.
* @sd_ret: A pointer to a pointer to a wim_security_data structure that