From: David Laight <David.Laight@ACULAB.COM>
To: 'Samuel Thibault' <samuel.thibault@ens-lyon.org>,
Kees Cook <keescook@chromium.org>
Cc: Kees Cook <kees@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Simon Brand <simon.brand@postadigitale.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-hardening@vger.kernel.org"
<linux-hardening@vger.kernel.org>,
"Dave@mielke.cc" <Dave@mielke.cc>
Subject: RE: [PATCH v3 2/2] tty: Allow TIOCSTI to be disabled
Date: Thu, 29 Jun 2023 13:23:54 +0000 [thread overview]
Message-ID: <55c209a024a94d1f9c6af85dfddb11a0@AcuMS.aculab.com> (raw)
In-Reply-To: <20230628060716.vvgtlgbushyjh6km@begin>
From: Samuel Thibault
> Sent: 28 June 2023 07:07
...
> > So is there really no solution for brltty and TIOCSTI being disabled?
>
> No, there is no way to simulate characters on the Linux console. The
> alternative would be to use uinput, but that simulates keycodes, not
> characters, thus requiring backtranslating first, which is very fragile.
It could probably be rewritten to use a pseudo-tty pair.
It might even be possible to emulate (the functionality of) TIOCSTI
in the relay process that handles the pseudo-tty.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2023-06-29 13:24 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-22 18:29 [PATCH v3 0/2] tty: Allow TIOCSTI to be disabled Kees Cook
2022-10-22 18:29 ` [PATCH v3 1/2] tty: Move sysctl setup into "core" tty logic Kees Cook
2022-10-22 18:29 ` [PATCH v3 2/2] tty: Allow TIOCSTI to be disabled Kees Cook
2022-11-15 13:17 ` Geert Uytterhoeven
2022-12-27 23:40 ` Samuel Thibault
2022-12-27 23:41 ` Samuel Thibault
2022-12-28 3:32 ` Kees Cook
2022-12-28 20:57 ` Samuel Thibault
2023-06-25 15:56 ` Samuel Thibault
2023-06-27 21:50 ` Samuel Thibault
2023-06-28 0:21 ` Paul Moore
2023-06-28 2:48 ` Kees Cook
2023-06-28 6:07 ` Samuel Thibault
2023-06-28 16:32 ` Kees Cook
2023-07-02 0:00 ` Samuel Thibault
2023-07-03 19:41 ` Kees Cook
2023-06-29 13:23 ` David Laight [this message]
2023-06-29 13:32 ` Samuel Thibault
2022-11-02 2:15 ` [PATCH v3 0/2] " Kees Cook
2022-11-02 2:29 ` Greg Kroah-Hartman
2022-11-02 2:46 ` Kees Cook
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