Extended attributes over NFSv3

[Christoph Hellwig]

On Wed, Jul 23, 2008 at 10:46:40AM -0400, Jean-Francois Bouchard wrote:
> Hello,
> 
> Our backup system rely on extended attributes (ex :
> 
> getfattr -d tzdata-2007h-1.el4.noarch.rpm
> # file: tzdata-2007h-1.el4.noarch.rpm
> user.content_hash="1,1191668578.0000,458656,F1D72D65122D89C0009625C6414F6BFC")
> 
> to work. I would like to know how they are handled in NFSv4 ? (at my
> knowledge, in NFSv3, there is no support)

SGI has a side band protocol for extended attributes over NFSv3 and even
released sample code a few years ago.  If someone cares enough this
would be about two man month to implement it.