Hi Michael,

I just realized this had been asked before:

<https://lists.samba.org/archive/cifs-protocol/2020-May/003438.html>

You can close this case. :)

Thanks!
-slow

On 11/22/24 5:45 PM, Michael Bowen wrote:
[DocHelp to bcc]

Hi,

Thanks for your question. We've created case 2411220040008626 to track this 
issue. One of our engineers will contact you soon.

Best regards,
Michael Bowen
Sr. Escalation Engineer - Microsoft® Corporation
-----Original Message-----
From: Ralph Boehme <[email protected]>
Sent: Friday, November 22, 2024 1:57 AM
To: Interoperability Documentation Help <[email protected]>
Cc: [email protected]
Subject: [EXTERNAL] SMB2-WRITE with offset=-2

Hello dochelp,

according to MS-FSA 2.1.5.4 "Server Requests a Write"

    If ByteOffset equals -2, then set ByteOffset to
    Open.CurrentByteOffset.

a write at this magic offset should happen at the at of the file.

However, if I try this over SMB3 against a Windows server this just fails with 
STATUS_INVALID_PARAMETER.

Is this not supposed to work over the wire?

Trace attached, cf packets 45+46.

Thanks!
-slow

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