Re: mark and accept in a single rule

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HI,
thank you for your reply I think layer7 is quite old.
is there any projet like layer7.
regards.

2011/2/20 Andrew Beverley <andy@xxxxxxxxxxx>:
> On Sun, 2011-02-20 at 16:10 +0000, E2IA wrote:
>>
>> 2011/2/20 Andrew Beverley <andy@xxxxxxxxxxx>:
>> > On Sun, 2011-02-20 at 15:13 +0000, E2IA wrote:
>> >> Hi all i'd like to know if it is possible to mark packet and accept in
>> >> the single iptable rule.
>> >
>> > There shouldn't be any need to do this.
>> >
>> >> i've these 2 rules:
>> >>
>> >> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m layer7
>> >> --l7proto Âyahoo Â-j MARK --set-mark 74
>> >> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â Â-m mark --mark
>> >> 74 Â-j ACCEPT
>> >>
>> >> but it seam that the second rule is never match.
>> >
>> > The second rule *should* be matched. What makes you think that it is
>> > not? Remember: a packet ACCEPTed in one chain can be DROPed later.
>> >
>> > It might be worth you posting your complete set of rules.
>> >
>
> [ Top posting fixed ]
>
>> Hi here is my complete rule set:
>> #!/bin/bash
>> #script Shapping marker config
>> /usr/local/sbin/iptables Â-t mangle -F FORWARD
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m layer7
>> --l7proto Âyahoo Â-j MARK --set-mark 74
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m mark --mark Â74
>> -j ÂACCEPT
>
> <snip>
>
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m layer7
>> --l7proto Âhttp Â-j MARK --set-mark 9
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m mark --mark Â9 -j ÂACCEPT
>
> <snip>
>
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m layer7
>> --l7proto Âfinger Â-j MARK --set-mark 6
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â Â -m mark --mark Â6 -j ÂACCEPT
>> /usr/local/sbin/iptables Â-t mangle Â-A FORWARD Â-j ÂACCEPT
>> # End
>>
>> When doing yahoo messenger it is http, skype and finger witch are
>> match enven yahoo is the first rule.
>> but when Âi keep yahoo rule alone yahoo is mach when doing yahoo messenger.
>>
>
> It's been a while since I played with l7-filter, but I suppose it could
> be something to do with the way that it is classifying packets (it
> sometimes has to see a significant amount of data before it matches some
> protocols).
>
> You might want to try the following for your rules instead, but if your
> problem is something to do with l7-filter then it may not help:
>
> iptables -t mangle -A FORWARD -m mark --mark 0 \
> Â Â Â Â-m layer7 --l7proto yahoo -j MARK --set-mark 74
> iptables -t mangle -A FORWARD -m mark --mark 0 \
> Â Â Â Â-m layer7 --l7proto http -j MARK --set-mark 9
>
> This will only match and mark packets if they haven't already been
> marked. The disadvantage of this is that all packets will traverse all
> rules making it less efficient.
>
> If you still can't get it to work, you should maybe try asking over at
> the l7-filter project.
>
> Andy
>
>
>
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