LWN.net Logo

Network Virtual Terminal

From:  Rodolfo Giometti <giometti@linux.it>
To:  linux-kernel@vger.kernel.org
Subject:  [Ver. 2] Network Virtual Terminal
Date:  Mon, 10 Jan 2011 14:06:57 +0100
Message-ID:  <1294664819-17960-1-git-send-email-giometti@linux.it>
Cc:  Russell Coker <russell@coker.com.au>, Greg Kroah-Hartman <gregkh@suse.de>, Alan Cox <alan@lxorguk.ukuu.org.uk>, Randy Dunlap <randy.dunlap@oracle.com>
Archive-link:  Article, Thread


Hello,

here my implementation of Network Virtual terminals (NVT tty)
according to RFC 854 and RFC 2217... actually this is the client side
part since as remote server I used sredird
(http://freshmeat.net/projects/sredird/).

I tested the code under the following configuration:

        ------------------+
             +---------+  |
             | minicom |  |
             +---------+  |
                  |       | local PC with no
                  v       | serial ports
             /dev/nvtty0  |
                  |       |
        ------------------+
                  |
                  v
             /\/\/\/\/\
            | network |
             \/\/\/\/\/
                  |
        ------------------+
                  |       |
                  v       |
             +---------+  |
             | sredird |  |
             +---------+  | remote PC with
                  |       | serial ports
                  v       |
             /dev/ttyS0   |
                  |       |
        ------------------+
                  |
                  v
         embedded PC with
         a serial console

however it could work on a different schema I suppose.

By using minicom I can setup the serial settings of the /dev/ttyS0
device through the /dev/nvtty0 virtual device, then the communication
with the embedded PC can start as if it was directly connected with my
local machine.

Ciao,

Rodolfo

--

CHANGELOG:

Ver. 2:

* typo bugs fixed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Copyright © 2011, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds