[cifs-protocol] Handling of STATUS_BUFFER_OVERFLOW on SMB_COM_READ_ANDX

[Bill Wesse]

Hello Stefan; thank you for your questions regarding the [MS-SMB] protocol specification. One of my colleagues will be in touch with you shortly, and will provide the service request name and number.

Regards,
Bill Wesse
MCSE, MCTS / Senior Escalation Engineer, US-CSS DSC PROTOCOL TEAM
8055 Microsoft Way
Charlotte, NC 28273
Email:   billwe at microsoft.com
Tel:       +1(980) 776-8200
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Fax:      +1(704) 665-9606


-----Original Message-----
From: Stefan (metze) Metzmacher [mailto:metze at samba.org] 
Sent: Wednesday, April 28, 2010 8:32 AM
To: Interoperability Documentation Help
Cc: pfif at tridgell.net; cifs-protocol at samba.org
Subject: Handling of STATUS_BUFFER_OVERFLOW on SMB_COM_READ_ANDX

Hi,

I need some help regarding the interaction of STATUS_BUFFER_OVERFLOW and chained SMB requests.

For SMB_COM_READ_ANDX requests on named pipes it can happen that the server has to return STATUS_BUFFER_OVERFLOW (see MS-CIFS 3.3.5.35 Receiving an SMB_COM_READ_ANDX Request).

Are chained requests possible in this case?

As there's only one status field for all requests in the chain, it's not clear how a server should handle such a situation.

metze