From c129412f74e99b609f0a8e95fc3915af1fd40f34 Mon Sep 17 00:00:00 2001 From: wenxu Date: Wed, 25 Nov 2020 12:01:23 +0800 Subject: net/sched: sch_frag: add generic packet fragment support. Currently kernel tc subsystem can do conntrack in cat_ct. But when several fragment packets go through the act_ct, function tcf_ct_handle_fragments will defrag the packets to a big one. But the last action will redirect mirred to a device which maybe lead the reassembly big packet over the mtu of target device. This patch add support for a xmit hook to mirred, that gets executed before xmiting the packet. Then, when act_ct gets loaded, it configs that hook. The frag xmit hook maybe reused by other modules. Signed-off-by: wenxu Acked-by: Cong Wang Acked-by: Jamal Hadi Salim Signed-off-by: Jakub Kicinski --- net/sched/act_mirred.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/sched/act_mirred.c') diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 17d00958047e..7153c67f641e 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -210,7 +210,7 @@ static int tcf_mirred_forward(bool want_ingress, struct sk_buff *skb) int err; if (!want_ingress) - err = dev_queue_xmit(skb); + err = tcf_dev_queue_xmit(skb, dev_queue_xmit); else err = netif_receive_skb(skb); -- cgit v1.2.3