linux-kernel - Question on tty line discipline

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-next>] [day] [month] [year] [list]

Message-ID: <20070228134711.GA8631@innominate.com>
Date:	Wed, 28 Feb 2007 14:47:12 +0100
From:	Christopher Meller <cmeller@...ominate.com>
To:	linux-kernel@...r.kernel.org
Subject: Question on tty line discipline 

Hi,

I have a question concerning the line discipline behaviour for serial
devices.
When the line discipline is set via ioctl from  user space to e.g. N_PPP and the userspace program returns without resetting  the line discipline back to N_TTY, the serial device cannot be used (ENODV) until an appropriate  ioctl (to N_TTY) is performed. Is there any reason for the fact that the line discipline is not reset by the kernel , when closing the device. 

Could you please CC me on answers and comments ?

Kind regards,

Christopher Meller

-- 
Christopher Meller
Software engineer

Innominate Security Technologies AG
protecting industrial networks
tel: +49.30.6392-3680
fax: +49.30.6392-3307
Albert-Einstein-Str. 14
D-12489 Berlin
www.innominate.com

Register Court: AG Charlottenburg, HR B 81603
Management Board: Joachim Fietz, Dirk Seewald
Chairman of the Supervisory Board: Edward M. Stadum
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/