Should BIND_CONN_TO_SESSION be allowed to return NFS4ERR_WRONG_CRED

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On Thu, 2013-07-18 at 15:54 -0400, Trond Myklebust wrote:
> On Thu, 2013-07-18 at 19:49 +0000, Adamson, Dros wrote:
> > Only supporting operations that have the error code NFS4ERR_WRONG_CRED seems to be wrong.  Operations like BIND_CONN_TO_SESSION don't support don't support this error code, but are explicitly mentioned in SP4_MACH_CRED sections of the spec.
> 
> Looking at the allowed error return values for BIND_CONN_TO_SESSION, I'm
> at a loss to figure out exactly what it should return in this case. I
> suspect that the lack of an NFS4ERR_WRONG_CRED is actually a protocol
> bug.
> 
> Time to go back to the ietf mailing list...

Hi all,

When attempting to implement the SP4_MACH_CRED state protection, Dros
ran into an issue. If the BIND_CONN_TO_SESSION operation is listed in
the "spo_must_enforce" list of operations, what should it not be allowed
to return NFS4ERR_WRONG_CRED if called with a credential that is not the
machine or SSV credential?

Cheers
  Trond
-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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