Re: krb5 failures with recent nfs-utils

[Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>]

On 07/14/2011 12:59 AM, J. Bruce Fields wrote:
> On Fedora 15 I'm seeing odd krb5 behavior: the context initialization
> appears to work fine, but then gssd sends a malformed RPCSEC_GSS_DESTROY
> packet just before closing the connection.  The client's first operation
> to the server using the context is rejected because the server's mic
> verification fails.
>
> Has anyone else seen this?

I have reported the same issue couple of weeks ago

http://www.spinics.net/lists/linux-nfs/msg22142.html

I use suse 11.4 x86_64 and can reproduce it with native kernel 
2.6.37.xxx and 3.0.0-rc5.

To me it looks like that in rpc packet missing verifier. Nevertheless
the message length is up to verifier. What I failed to find out it the 
message length did not take verifier in the account or verifier is 
missing in the first place. I was looking the the kernel code, but may 
be problem is in gssd. I don't know which part of gss handling in user 
space and which part is in the kernel.

Tigran.
>
> I'll keep investigating.
>
> --b.
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