linux-kernel - Re: TOMOYO in linux-next

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Message-ID: <20090327003620.GI29836@elf.ucw.cz>
Date:	Fri, 27 Mar 2009 01:36:20 +0100
From:	Pavel Machek <pavel@....cz>
To:	James Morris <jmorris@...ei.org>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	linux-security-module@...r.kernel.org, Greg KH <greg@...ah.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: TOMOYO in linux-next

Hi!

> As for the rest of the feedback, please work with the developers to fix 
> any bugs or lack of documentation.

Apparently not even its user<->kernel interface was reviewed. This
violates "one value per file in sysfs":

    [root@...oyo]# cat /sys/kernel/security/tomoyo/meminfo
    Shared:       61440
    Private:      69632
    Dynamic:        768
    Total:       131840
    
    You can set memory quota by writing to this file.
    (Example)
    [root@...oyo]# echo Shared: 2097152 > /sys/kernel/security/tomoyo/meminfo
    [root@...oyo]# echo Private: 2097152 > /sys/kernel/security/tomoyo/meminfo

(not to mention being ugly as hell).

This is totaly useless once tomoyo is merged:

    ** /sys/kernel/security/tomoyo/version **
    
    This file is used for getting TOMOYO Linux's version.
    (Example)
    [root@...h]# cat /sys/kernel/security/tomoyo/version
    2.2.0-pre


									Pavel
-- 
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