Re: string seems doesn t work

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On Thu, 27 Jul 2006 17:34:32 +0300
 Maxim Britov wrote:

> I trying to use string. iptables 1.3.5 / kernel 2.6.18-rc2-ck1
> 
> iptables -A INPUT -p tcp -m string --algo kmp --string 112233 -j LOG
> iptables -A INPUT -p tcp -m string --algo kmp --string ! 112233 -j LOG
> iptables -A INPUT -p tcp -m string --algo kmp --hex-string 112233 -j LOG
> 
> I got worked first rule only.
> 
> Second rule never matches any packets. IMHO it should match any packet without my string. I'm right?
> 
> Thirst rule iptables-save show as:
> -A INPUT -p tcp -m string --string "112233" --algo kmp --to 65535 -j LOG
> I think it transform my --hex-string into --string here. May I misunderstood some here?

And "--algo bm --string 112233" doesn't want match 112233, but match x112233

Is it bug or it is bm algorithm feature?

PS. Happy SysAdmin Day!!! ;)


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