On Fri, Oct 23, 2020 at 05:58:07PM +0100, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> This is the 4th cut of an xattr name mapping option for virtiofsd.
> It allows the user of virtiofsd to define a fairly flexible mapping
> from the view of the xattr names the host fs has and the ones that the
> guest sees.
>
> The hope is this allows things like:
> a) Different selinux attributes on host/guest
> b) separation of trusted. attributes that clash on overlayfs
> c) support for privileged xattr's in guests running with an
> unprivileged virtiofsd.
>
> There's no apparent standard for this kind of mapping, so I made
> it flexible by specifying a mapping rule in the option.
>
> Prefix's can be added (selectively or globally), xattr's can be
> dropped in either direction or passed through.
>
> v4
> cleanups from Stefan and Vivek's reviews
>
> Dave
>
>
> Dr. David Alan Gilbert (5):
> tools/virtiofsd: xattr name mappings: Add option
> tools/virtiofsd: xattr name mappings: Map client xattr names
> tools/virtiofsd: xattr name mappings: Map server xattr names
> tools/virtiofsd: xattr name mapping examples
> tools/virtiofsd: xattr name mappings: Simple 'map'
>
> docs/tools/virtiofsd.rst | 161 +++++++++++
> tools/virtiofsd/passthrough_ll.c | 474 ++++++++++++++++++++++++++++++-
> 2 files changed, 632 insertions(+), 3 deletions(-)
>
> --
> 2.28.0
>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>