Streams support in Linux

[Steve French]

On Tue, Aug 28, 2018 at 4:19 PM Stefan Metzmacher <metze at samba.org> wrote:
>
> Am 28.08.2018 um 22:47 schrieb Jeremy Allison via samba-technical:
> > On Tue, Aug 28, 2018 at 03:43:45PM -0500, Steve French wrote:
> >>
> >> In theory I could construct a struct fd by setting up a struct file on the fly
> >> (see "alloc_empty_file" for example) and the few dozen fields in it,
> >> but it would be a lot easier to return them as xattrs with a reserved
> >> prefix (e.g. "streams")
> >> since most of these are small (some examples) and could have been
> >> stored in xattrs
> >> if the Apple or Windows developers had wanted to
> >>
> >> "streams.ZoneIdentifier" (for Internet Explorer download security info)
> >> "streams.favicon"  (for Internet explorer icons)
> >> "streams.AFP_AfpInfo" and "streams.AFP_Resource" (for two common Mac streams)
> >> "streams.XPRESS" (for compression)
> >
> > Hmmm. Yeah, I guess this works if you can ensure
> > the prefix is reserved.
>
> Remember some of the AFP stream can get very large, Ralph should have
> more details about it.
>
> Also from reading [MS-FSA] I have the impression that opens on stream
> would also support oplocks/leases as well as byte range locks.

Larger than 8MB (maximum i/o size for read)?


-- 
Thanks,

Steve