The SMB2_CREATE_SD_BUFFER context is specified on an SMB2 CREATE Request when the client is applying a security descriptor to a newly created file. The server MUST ignore this Create Context for requests to open an existing file, a pipe, or a printer. The Data in the Buffer field of the SMB2_CREATE_CONTEXT MUST contain a security descriptor that MUST be a self-relative SECURITY_DESCRIPTOR in the format as specified in [MS-DTYP] section 2.4.6.