well. let me describe whole picture i want to achieve 1. use htb/sfq on ingress. i got a traffic, and use few u32 filters to direct it to 3 flows, priority, interactive, and bulk. as http normally pass to interactive flow, i want to move long donwloads to the bulk one. how i trying to find these downloads: iptables -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 so, http connection where more than 200K downloaded, must got a connection mark. since ingress traffic hits qos before netfilter, i use xt action, to copy connection mark, to a packet. (action xt -j CONNMARK --restore-mark ) from this moment, i expect packet must have a restored mark after this, i can use high priority tc filter .. handle 0xa fw flowid 1:102 to direct packet with mark 0xa to 1:102 flow (bulk). now about a problem. 1. i run http download, once i get 200K - i can see that rule in POSTROUTING is triggered and connection mark is installed (iptables -L -n -v mangle -- can show number of packets matched by rule) 2. i see to tc stats for my flows, and i see, that packets still going to interactive flow, not bulk as i expect. 3. from tc -s filter show dev usb0 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 terminal flowid ??? (rule hit 707 success 707) match 00000000/00000000 at 0 (success 707 ) action order 1: tablename: mangle hook: NF_IP_PRE_ROUTING target CONNMARK restore index 5 ref 1 bind 1 installed 394 sec used 11 sec Action statistics: Sent 783783 bytes 707 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 action order 2: mirred (Egress Redirect to device ifb0) stolen index 5 ref 1 bind 1 installed 394 sec used 11 sec Action statistics: Sent 783783 bytes 707 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 i can see that packets must reach xt action. 4. lets try to check packets mark with iptables, if mark restored by xt action - i must be able to match it in prerouting rule. iptables -t mangle -A PREROUTING -m mark --mark 0xa -j NFLOG --nflog-group 1 but this rule not macthesd - so, no mark is restored by xt action. maybe im completely wrong here, and such mode can't work for some reason ? 21.12.2012 17:50, Jamal Hadi Salim пишет: > On 12-12-21 08:13 AM, Yury Stankevich wrote: > >> sure, >> i use it ingress, >> so, i need to use tc xt action >> to get mark on the packet, before filter on ifb will run. > > Ok. So does ifb see it? > >> prerouting rule, in turn, used to test if mark was actually restored. > > No experience with connmark, but - in order to restore something has > to store it, correct? > >> in practice: >> 1. prerouting rule - is not fired. so, no packets with mark was seen. >> 2. filter on ifb - do not pass traffic to flow configured. >> looks like `CONNMARK --restore` is not really called. >> > > My suspicion is that it is not set to begin with... > > cheers, > jamal > -- Linux registered user #402966 // pub 1024D/E99AF373 <pgp.mit.edu> -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
