Re: [LARTC] howto spare the "tc filter" - lines with htb

Re: [LARTC] howto spare the "tc filter" - lines with htb

[Stef Coene]

> > As far as I understood Devik, this should look like:
> > tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw
>
> output:
> "RTNETLINK answers: Invalid argument"
> i can try this in whatever stage of my script (before iptables, after
> qdiscs and classes, whatever), it's always that "answer" :)
You have to remove the handle parameter.  That parameter = mark, so marking 
with 20 will put the packets in 10:20.

Stef

-- 

stef.coene@docum.org
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[LARTC] howto spare the "tc filter" - lines with htb

[Tobias Geiger]

Hi,

recently Martin explained, how to avoid these "tc filter" lines in our
scripts.
unfortunatly it doesn't work with my setup.
i add a "dummy" tc filter - line:

tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw classid 10:10

which of course works, but i have no fwmark "1", but as i thought it's
just a "dummy" -line for tc filter to work, i gues/think that's ok.

further i just set marks with iptables, and generate the right
qdiscs/classes for them:

  ack=0x00100010 # for classid 10:10
 high=0x00100011 #	       10:11
 norm=0x00100012 # and so
  low=0x00100013 # on

but it doesn't work :(

am i missing something?! i gues it's the "not-really-dummy" tc-filter
line ?! :)

thank you very much

Tobias

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Re: [LARTC] howto spare the "tc filter" - lines with htb

[Patrick McHardy]

Hi :)

Tobias Geiger wrote:
> Hi,
> 
> recently Martin explained, how to avoid these "tc filter" lines in our
> scripts.
> unfortunatly it doesn't work with my setup.
> i add a "dummy" tc filter - line:
> 
> tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw classid 10:10
> 
> which of course works, but i have no fwmark "1", but as i thought it's
> just a "dummy" -line for tc filter to work, i gues/think that's ok.
> 
> further i just set marks with iptables, and generate the right
> qdiscs/classes for them:
> 
>   ack=0x00100010 # for classid 10:10
>  high=0x00100011 #	       10:11
>  norm=0x00100012 # and so
>   low=0x00100013 # on
> 

I guess the problem are the encoded id's, in my opinion they have to be 
calculated like this:

(classid << 16) + leafid
So 10:10 would translate to 655370 decimal or 0xa000a hex.

bye,
patrick

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Re: [LARTC] howto spare the "tc filter" - lines with htb

[Tobias Geiger]

On Mon, Apr 29, 2002 at 04:59:33PM +0200, Patrick McHardy wrote:
> Hi :)
> 
> Tobias Geiger wrote:
> >Hi,
> >
> >recently Martin explained, how to avoid these "tc filter" lines in our
> >scripts.
> >unfortunatly it doesn't work with my setup.
> >i add a "dummy" tc filter - line:
> >
> >tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw classid 
> >10:10
> >
> >which of course works, but i have no fwmark "1", but as i thought it's
> >just a "dummy" -line for tc filter to work, i gues/think that's ok.
> >
> >further i just set marks with iptables, and generate the right
> >qdiscs/classes for them:
> >
> >  ack=0x00100010 # for classid 10:10
> > high=0x00100011 #	       10:11
> > norm=0x00100012 # and so
> >  low=0x00100013 # on
> >
> 
> I guess the problem are the encoded id's, in my opinion they have to be 
> calculated like this:
> 
> (classid << 16) + leafid
> So 10:10 would translate to 655370 decimal or 0xa000a hex.
> 
> bye,
> patrick
> 

hi patrick :)

hmm. here's a posting from martin:

--------------------------------

	> > You can use only one
	> > tc filter add dev ppp0 parent 1: protocol ip prio 1 handle 1 fw
	> >
	> > and set classid directly in iptables like:
	> > iptables -t mangle -A to-dsl -p tcp --dport 80 -j MARK --set-mark 0x10010
	> > iptables -t mangle -A to-dsl -p tcp --sport 24 -j MARK --set-mark 0x10020
	> >
	> > and so on ..
	> > devik
	> Thx.
	> Even I 'm learning from this list :)
	> But how do you translate xx:xx to HEX ?
	
	handle numbers in tc ARE in hex, so that:
	
	... classid a23f:334d
	
	can be written as --set-mark 0xa23f334d
	devik

--------------------------------------------

but nevertheless i tried to convert the classid's to hex ... no success :(

Greetings

Tobias
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Re: [LARTC] howto spare the "tc filter" - lines with htb

[Nils Lichtenfeld]

Hello Tobias!

> unfortunatly it doesn't work with my setup.
> i add a "dummy" tc filter - line:
>
> tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw classid
10:10

As far as I understood Devik, this should look like:
tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw

So no classid term (makes sense, since the classid term is incorporated into
the --mark statement).

Greetings Nils

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Re: [LARTC] howto spare the "tc filter" - lines with htb

[Tobias Geiger]

On Tue, Apr 30, 2002 at 11:33:12AM +0200, Nils Lichtenfeld wrote:
> Hello Tobias!
> 
Hello Nils,

> > unfortunatly it doesn't work with my setup.
> > i add a "dummy" tc filter - line:
> >
> > tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw classid
> 10:10
> 
> As far as I understood Devik, this should look like:
> tc filter add dev imq1 parent 10:0 protocol ip prio 1 handle 1 fw
output:
"RTNETLINK answers: Invalid argument"
i can try this in whatever stage of my script (before iptables, after
qdiscs and classes, whatever), it's always that "answer" :)
> 
> So no classid term (makes sense, since the classid term is incorporated into
> the --mark statement).
yes, i thought so too. that's why i wanted to call it "dummy"-line :)
> 
> Greetings Nils
> 
Greetings Tobias
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