3.3.5.10.9 Receiving a TRANS2_SET_FS_INFORMATION Request

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The server MAY support setting file system information. If the server does not support setting file system information, then it MUST fail the request with STATUS_ACCESS_DENIED.

If the client requests a pass-through Information Level, then processing follows as specified in section 3.3.5.10.1.

There is no way to know if a server file system supports a given Information Level. From a protocol perspective, if a client issues a request and it fails with STATUS_NOT_SUPPORTED, then it MUST be inferred that the server file system does not support the request.