Handling the SMB2_CREATE_SD_BUFFER Create Context

The client is requesting that a specific security descriptor be applied to the file that is being created.

The processing changes involved for this create context are:

In the "Open Execution" phase, the server MUST pass the received security descriptor to the underlying object store to be stored on the created file.<268> If the object store does not support file security, the value MAY<269> be ignored or STATUS_NOT_SUPPORTED SHOULD be returned to the client.