Re: Bug in NFSV3 ACCESS Procedure reply

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Do you see this issue on your version too? Not sure if there is a
patch already addressing this issue.

Thanks
Dilip Kumar

On Thu, Aug 28, 2008 at 10:49 AM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
> On Thu, Aug 28, 2008 at 10:41:24AM -0700, Dilip Kumar wrote:
>> The directory was created by a local user (not root) with access mode
>> 200 (Write only for owner). When I perform the ACCESS call as a owner
>> (who created that directory), I see that the ACCESS reply has access
>> set to 0x0. My /etc/exports just has just this one line :"/nfsshare
>> *(rw,sync)"
>
> OK, hm, confirmed here on 2.6.27-rc4 (+ some local patches).  Not sure
> yet why it's doing that, though.
>
> --b.
>
>>
>> Thanks
>> Dilip Kumar
>>
>> On Thu, Aug 28, 2008 at 10:34 AM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
>> > On Wed, Aug 27, 2008 at 12:41:34PM -0700, Dilip Kumar wrote:
>> >> Hi all,
>> >>
>> >> I noticed a bug in the access rights of a NFSV3 ACCESS Reply. If a
>> >> directory was created with only write permissions for the owner (chmod
>> >> 200 directory), we expect the modify, extend and delete bits (access =
>> >> 0x1C) to be set for this directory in the reply to an ACCESS RPC call
>> >> with access = 0x1F send by the owner. Instead the NFS server on Linux
>> >> returns an ACCESS Reply with access set to 0x0 (none of the bits were
>> >> set). I tried checking this against Solaris server and it returns the
>> >> expected access rights 0x1C. The Linux server I was using for testing
>> >> was 2.6.9-1.667smp and the Solaris server was SunOS 5.8
>> >> Generic_108528-22 Ultra Sparc-IIi.
>> >
>> > What user are you performing the access call as, and who owns the
>> > directory?  What does exportfs -v say?   (Do you have root_squash or
>> > no_root_squash set?)
>> >
>> > --b.
>> >
>> >>
>> >> Please let me know if you need further details regarding this issue.
>> >>
>> >> Thanks
>> >> Dilip Kumar
>> >> --
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