hello network hackers, A linux container was builded with veth pair(veth0 inside container, veth1 outside container),
the config as below: lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 // base on eth0 lxc.network.name = eth0 lxc.network.ipv4 = 128.5.130.26/24 then I use tc command with cgroup filter on veth0, it works well. But when setting on eth0, it doesn`t work. The reason is dev_forward_skb() in veth_xmit will call skb_scrub_packet and clean all information including skb->sk in the skb, so if cls_cgroup_classify is working in serving softirq state, it will return failer, see below: if (in_serving_softirq()) { /* If there is an sk_classid we'll use that. */ if (!skb->sk) return -1; classid = skb->sk->sk_classid; } Qdisc with cgroup filter on physics interface can not control a container network, it is disappointed. we can save sk_classid before skb_scrub_packet and restore it after that. Is it reasonable? or any way to achieve this? thanks, Libo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/