Re: xt_time 20070915

Part 2/2.

---------- Forwarded message ----------
Date: Mon, 17 Sep 2007 17:13:55 +0200 (CEST)
Cc: Netfilter Developer Mailing List <netfilter-devellists.netfilter.org>
Subject: Re: xt_time 20070915

netfilter list is kinda slow...

On Sep 17 2007 17:01, Jan Engelhardt wrote:
>>> +	u_int32_t monthdays_match;
>>> +	u_int16_t time_start;
>>> +	u_int16_t time_stop;
>>> +	u_int8_t weekdays_match;
>>
>>No inversion?
>
>[...Length explanation about set theory...]

Actually, there is also a technical limitation. There are
three evil
cases the user could do:

	(1)	! --timestart 05:00   --timestop 07:00
	(2)	  --timestart 05:00 ! --timestop 07:00
	(3)	! --timestart 05:00 ! --timestop 07:00

and in all of these, we would have to record that ! was
given and
fix up the start and stop times in time_final(). Thay may
work,
but cases 2 and 3 look so odd that I am not sure I should do
that.

I would really leave it as is now and assume the user is
smart
enough to write

	--timestart 07:00 --timestop 05:00

if he wanted to match everything but the morning hours
!(--timestart 05:00 --timestop 07:00)


thanks,
Jan
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