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Re: [PATCH] Smackv10: Smack rules grammar + their stateful parser

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From: Alan Cox <alan@...>
To: Adrian Bunk <bunk@...>
Cc: Linus Torvalds <torvalds@...>, Ahmed S. Darwish <darwish.07@...>, Pavel Machek <pavel@...>, Casey Schaufler <casey@...>, <akpm@...>, <linux-security-module@...>, <linux-kernel@...>, Al Viro <viro@...>
Subject: Re: [PATCH] Smackv10: Smack rules grammar + their stateful parser
Date: Wednesday, November 7, 2007 - 11:08 am

> Users are used to work on characters, not on bytes.

Absolutely true - but completely missing the point.

When I open a UTF-8 file name as displayed by nautilus the kernel does
byte comparisons. The kernel doesn't care what character set is in use.


If your regexps are reasonably complete you just have to turn the unicode
match into a byte match. That is a user interface problem - in user space.

Alan
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Messages in current thread:
[PATCH] Version 10 (2.6.24-rc1) Smack: Simplified Mandatory ..., Casey Schaufler, (Fri Nov 2, 4:50 pm)
[PATCH] Smackv10: Smack rules grammar + their stateful parser, Ahmed S. Darwish, (Sat Nov 3, 12:43 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 2:33 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Kyle Moffett, (Tue Nov 6, 4:26 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 4:56 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Tue Nov 6, 7:34 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 7:47 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Tue Nov 6, 8:23 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Kyle Moffett, (Tue Nov 6, 8:49 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Tue Nov 6, 11:53 am)
[PATCH] Fix isspace() and other ctype.h functions to ignore ..., Kyle Moffett, (Wed Nov 7, 6:56 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 9:34 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Tue Nov 6, 10:05 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 10:10 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Tue Nov 6, 10:30 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Alan Cox, (Tue Nov 6, 7:02 am)
[PATCH] Smackv10: Smack rules grammar + their stateful parse..., Ahmed S. Darwish, (Sun Nov 4, 8:56 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Pavel Machek, (Sun Nov 11, 8:44 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Sun Nov 11, 2:37 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Jakob Oestergaard, (Sat Nov 10, 1:05 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Sat Nov 10, 3:45 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Sun Nov 4, 4:06 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Pavel Machek, (Sun Nov 4, 8:28 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Mon Nov 5, 5:41 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Mon Nov 5, 12:21 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 4:06 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Tue Nov 6, 11:39 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 7:00 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Tue Nov 6, 7:08 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 8:07 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Tue Nov 6, 8:27 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 8:43 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Tue Nov 6, 9:06 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 9:59 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Alan Cox, (Wed Nov 7, 11:08 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Linus Torvalds, (Wed Nov 7, 12:09 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Tetsuo Handa, (Tue Nov 6, 9:03 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Mon Nov 5, 7:38 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Tetsuo Handa, (Mon Nov 5, 5:56 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 6:00 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Tetsuo Handa, (Tue Nov 6, 8:27 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 9:58 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Tetsuo Handa, (Tue Nov 6, 10:32 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 10:59 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Tetsuo Handa, (Tue Nov 6, 11:27 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Adrian Bunk, (Tue Nov 6, 6:42 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Sun Nov 4, 9:23 am)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Casey Schaufler, (Sun Nov 4, 12:37 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Kyle Moffett, (Sat Nov 3, 2:30 pm)
Re: [PATCH] Smackv10: Smack rules grammar + their stateful p..., Ahmed S. Darwish, (Sat Nov 3, 6:12 pm)