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Message-ID: <20071106063305.GA26163@stusta.de>
Date: Tue, 6 Nov 2007 07:33:05 +0100
From: Adrian Bunk <bunk@...nel.org>
To: "Ahmed S. Darwish" <darwish.07@...il.com>
Cc: Casey Schaufler <casey@...aufler-ca.com>, akpm@...l.org,
torvalds@...l.org, linux-security-module@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Smackv10: Smack rules grammar + their stateful parser
On Sat, Nov 03, 2007 at 06:43:06PM +0200, Ahmed S. Darwish wrote:
> On Fri, Nov 02, 2007 at 01:50:55PM -0700, Casey Schaufler wrote:
> >
> > Still to come:
> >
> > - Final cleanup of smack_load_write and smack_cipso_write.
>
> Hi All,
>
> After agreeing with Casey on the "load" input grammar yesterday, here's
> the final grammar and its parser (which needs more testing):
>
> A Smack Rule in an "egrep" format is:
>
> "^[:space:]*Subject[:space:]+Object[:space:]+[rwxaRWXA-]+[:space:]*\n"
>
> where Subject/Object strings are in the form:
>
> "^[^/[:space:][:cntrl:]]{1,SMK_MAXLEN}$"
>...
Can you limit this to 7bit ASCII and use isascii() somewhere?
Otherwise I'd expect funny things to happen when you e.g. use isspace()
on the UTF-8 encoded character à.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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