netdev - Re: [PATCH] pkt_sched: act_xt support new Xtables interface

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Message-ID: <50D305FD.7000901@mojatatu.com>
Date:	Thu, 20 Dec 2012 07:35:09 -0500
From:	Jamal Hadi Salim <jhs@...atatu.com>
To:	Yury Stankevich <urykhy@...il.com>
CC:	Hasan Chowdhury <shemonc@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	Jan Engelhardt <jengelh@...i.de>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	pablo@...filter.org, netfilter-devel@...r.kernel.org
Subject: Re: [PATCH] pkt_sched: act_xt support new Xtables interface


Could be your setup. I didnt do a lot of testing but
from my notes (running different kernel at the moment):

#try to point to everything (no iptables setup)
tc filter add dev eth0 parent ffff: protocol ip u32 match u32 0 0 flowid 
23:23 action xt -j CONNMARK --restore-mark
#let it run for a 1 sec then display with
tc -s filter show dev eth0 parent ffff:

----
filter protocol ip pref 49152 u32
filter protocol ip pref 49152 u32 fh 800: ht divisor 1
filter protocol ip pref 49152 u32 fh 800::800 order 2048 key ht 800 bkt 
0 flowid 23:23
   match 00000000/00000000 at 0
	action order 1: tablename: mangle  hook: NF_IP_PRE_ROUTING
	target  CONNMARK restore
	index 1 ref 1 bind 1 installed 3 sec used 1 sec
	Action statistics:
	Sent 280 bytes 4 pkt (dropped 0, overlimits 0 requeues 0)
	backlog 0b 0p requeues 0
----

cheers,
jamal

On 12-12-20 03:54 AM, Yury Stankevich wrote:
> 19.12.2012 15:56, Jamal Hadi Salim пишет:
>> Hasan/Yury, if you test this please use the latest iproute2 with only
>> the first patch I posted (originally from Hasan). Hasan please use that
>> patch not your version - if theres anything wrong we can find out sooner
>> before the patch becomes final.
>
> Hello,
> 3.7.1 kernel with 3.7.0 iproute,
> patch-xt, xt-p1 + linkage fix was applyed
> command successfully performed, but actually doesn't work.
>
> command:
> tc filter add dev $dev parent ffff: protocol ip u32 match u32 0 0 \
>              action xt -j CONNMARK --restore-mark \
>              action mirred egress redirect dev ifb0
> then i use filter:
>
> tc filter add dev ifb0 protocol ip parent 1: prio 2 handle 0xa fw flowid
> 1:102
>
> iptables line:
> iptable -t mangle -A POSTROUTING -p tcp --dport 80 -m connmark --mark 0
> -m connbytes --connbytes 204800: --connbytes-dir both --connbytes-mode
> bytes -j CONNMARK --set-mark 0xa
>
> once i run a test to download 300K file,
> from iptables counters i can see that rule in POSTROUTING is triggered,
> but from `tc -s qdisc show dev ifb0` i see that no packets was sent to
> 1:102 flow.
>
> btw,
> tc -p -s filter show dev ifb0 parent 1:
> do not show stats `(rule hit 416 success 0)` for this (filter protocol
> ip pref 2 fw handle 0xa classid 1:102) rule.
>
>
>

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