From 5e187189ec324f78035d33a4bc123a9c4ca6f3e3 Mon Sep 17 00:00:00 2001 From: Menglong Dong Date: Sat, 26 Feb 2022 12:18:29 +0800 Subject: net: ip: add skb drop reasons for ip egress path Replace kfree_skb() which is used in the packet egress path of IP layer with kfree_skb_reason(). Functions that are involved include: __ip_queue_xmit() ip_finish_output() ip_mc_finish_output() ip6_output() ip6_finish_output() ip6_finish_output2() Following new drop reasons are introduced: SKB_DROP_REASON_IP_OUTNOROUTES SKB_DROP_REASON_BPF_CGROUP_EGRESS SKB_DROP_REASON_IPV6DISABLED SKB_DROP_REASON_NEIGH_CREATEFAIL Reviewed-by: Mengen Sun Reviewed-by: Hao Peng Signed-off-by: Menglong Dong Reviewed-by: David Ahern Signed-off-by: David S. Miller --- include/linux/skbuff.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 31be38078918..62b4bed1b7bc 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -380,6 +380,15 @@ enum skb_drop_reason { * the ofo queue, corresponding to * LINUX_MIB_TCPOFOMERGE */ + SKB_DROP_REASON_IP_OUTNOROUTES, /* route lookup failed */ + SKB_DROP_REASON_BPF_CGROUP_EGRESS, /* dropped by + * BPF_PROG_TYPE_CGROUP_SKB + * eBPF program + */ + SKB_DROP_REASON_IPV6DISABLED, /* IPv6 is disabled on the device */ + SKB_DROP_REASON_NEIGH_CREATEFAIL, /* failed to create neigh + * entry + */ SKB_DROP_REASON_MAX, }; -- cgit v1.2.3