[cifs-protocol] Send oplock breaks unencrypted, as lease breaks are sent plain?

Volker Lendecke Volker.Lendecke at SerNet.DE
Tue Oct 6 14:35:36 UTC 2015


Testing leases and oplocks against Windows 8 over encrypted smb3 I
see that I get lease breaks in plain text, unencrypted, but oplock
breaks are sent encrypted by Windows 8. Samba does the same, however a
Windows 8 client seems very unhappy with our unencrypted oplock breaks,
it just seems not to respect them. If we modify Samba to send oplock
breaks unencrypted, Windows 8 client is happily downgrading the oplock,
everything is fine.

Where in the documentation can I find what is correct? And, where is
the bug? Client or server?

If required, I can provide network traces.

With best regards,

Volker Lendecke

SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen
phone: +49-551-370000-0, fax: +49-551-370000-9
AG Göttingen, HRB 2816, GF: Dr. Johannes Loxen
http://www.sernet.de, mailto:kontakt at sernet.de

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