Query-info passthrough for linux smb

[ronnie sahlberg]

On Mon, Oct 29, 2018 at 7:03 AM Jeremy Allison <jra at samba.org> wrote:
>
> On Sun, Oct 28, 2018 at 05:55:34AM +1000, ronnie sahlberg via samba-technical wrote:
> > List, all
> >
> > PSA, and fishing for people to write some python code...
> >
> >
> > In the kernel client land we now have an ioctl to provide query info passthrough
> > between the application and the smb2/3 server.
> > This allows userland applications to view all the SMB2/3 metadata that
> > are available via
> > SMB2/QUERY_INFO.
> >
> > We even have some simple example code to show how the API looks like
> > when querying for example the security descriptor or quota.
> >
> > It would be really awesome to have linux applications with a gui to
> > view or manage these things instead of having to revert to using other
> > OSes everytime we want to view these data.
> >
> > Anyone up for writing some nice, maybe python, tools to view and
> > operate on security descriptors?
> > I think having something similar to what you have in
> > Properties/Security/... in Explorer would be awesome.
>
> Really cool work Ronnie - thanks ! That will be
> amazingly useful in future.

Thanks for the praise.

Aside from just being able to get hold of the metadata for files,
since this as far as the kernel is concerned this is
just an opaque blob in / opaque blob out interface it can allow us to
do even more exotic stuff.
Say, like inventing a new private infolevel and basically have an
authenticated transport to talk directly to a samba vfs module
from client application space.  I am likely getting way ahead of
myself here, but I could see a lot more exotic and cool
use we can have from this feature.


>
> Jeremy.