linux-kernel - Re: [PATCH] fs/ceph/super: add mount options "snapdir{mode,uid,gid}"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAKPOu+88FT1SeFDhvnD_NC7aEJBxd=-T99w67mA-s4SXQXjQNw@mail.gmail.com>
Date:   Sun, 9 Oct 2022 08:49:19 +0200
From:   Max Kellermann <max.kellermann@...os.com>
To:     Xiubo Li <xiubli@...hat.com>
Cc:     idryomov@...il.com, jlayton@...nel.org, ceph-devel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fs/ceph/super: add mount options "snapdir{mode,uid,gid}"

On Sun, Oct 9, 2022 at 8:23 AM Xiubo Li <xiubli@...hat.com> wrote:
> I don't think this is a good place to implement this in client side.
> Should this be a feature in cephx.

What's cephx? "git grep cephx" didn't reveal anything that looked useful to me.

> With this for the same directories in different mounts will behave
> differently. Isn't that odd ?

Just like different mounts can have different snapdir names currently.
That's just as odd, and I tried to imitate what's already there.

I don't have an opinion on how this should be implemented, all I want
is restrict who gets access to cephfs snapshots. Please explain how
you want it, and I'll send an amended patch.