linux-kernel - Re: [RFC PATCH] overlayfs: add OVL_IOC_GETINFOFD ioctl that opens ovlinfofd

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: <CAJfpegtEbkdLnYvNVJYEb6yCtAjDAs4PWLVO53uQ3y5uprEELw@mail.gmail.com>
Date:   Tue, 6 Oct 2020 11:54:33 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Alexander Mikhalitsyn <alexander.mikhalitsyn@...tuozzo.com>
Cc:     Amir Goldstein <amir73il@...il.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Andrei Vagin <avagin@...il.com>,
        Pavel Tikhomirov <ptikhomirov@...tuozzo.com>,
        David Howells <dhowells@...hat.com>,
        overlayfs <linux-unionfs@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] overlayfs: add OVL_IOC_GETINFOFD ioctl that opens ovlinfofd

On Mon, Oct 5, 2020 at 9:40 PM Alexander Mikhalitsyn
<alexander.mikhalitsyn@...tuozzo.com> wrote:

> Oh, yes, it's just another one choice for us ;)
> I decided to create ioctl which opens fd for transferring
> data about overlayfs.
> Sure, let's look on sys fs. I will dive into it!

Or maybe use fsinfo(2) or whatever it's going to be called?

That one seems stuck at the moment, but having a clear set of use
cases can possibly help move it forward.

Thanks,
Miklos