On Mon, Oct 09, 2006 at 12:44:34PM +0200, Joerg Schilling wrote:
> Nicolas Williams <[EMAIL PROTECTED]> wrote:
>
> > You're arguing for treating FV as extended/named attributes :)
> >
> > I think that'd be the right thing to do, since we have tools that are
> > aware of those already. Of course, we're talking about somewhat magical
> > attributes, but I think that's fine (though, IIRC, NFSv4 [RFC3530] has
> > some strange verbiage limiting attributes to "applications").
>
> I thought NFSv4 supports extended attributes. What "limiting" are you
> aware of?
It does. I meant this on pg. 12:
[...] Named attributes
are meant to be used by client applications as a method to associate
application specific data with a regular file or directory.
and this on pg. 36:
Named attributes are intended for data needed by applications rather
than by an NFS client implementation. NFS implementors are strongly
encouraged to define their new attributes as recommended attributes
by bringing them to the IETF standards-track process.
and this on pg. 232:
17.1. Named Attribute Definition
The NFS version 4 protocol provides for the association of named
attributes to files. The name space identifiers for these attributes
are defined as string names. The protocol does not define the
specific assignment of the name space for these file attributes.
Even though the name space is not specifically controlled to prevent
collisions, an IANA registry has been created for the registration of
NFS version 4 named attributes. Registration will be achieved
through the publication of an Informational RFC and will require not
only the name of the attribute but the syntax and semantics of the
named attribute contents; the intent is to promote interoperability
where common interests exist. While application developers are
allowed to define and use attributes as needed, they are encouraged
to register the attributes with IANA.
Nico
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