diff options
| author | Menglong Dong <imagedong@tencent.com> | 2022-02-26 12:18:29 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-26 12:53:58 +0000 |
| commit | 5e187189ec324f78035d33a4bc123a9c4ca6f3e3 (patch) | |
| tree | 84c0ae691f34f42b4879b5e807e57f2ca13f3aac /include | |
| parent | 0cc70c6eecf14c37cb6d8eb3f625ab359e6be323 (diff) | |
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 <mengensun@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/skbuff.h | 9 | ||||
| -rw-r--r-- | include/trace/events/skb.h | 5 |
2 files changed, 14 insertions, 0 deletions
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, }; diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h index 2ab7193313aa..97f8097651da 100644 --- a/include/trace/events/skb.h +++ b/include/trace/events/skb.h @@ -37,6 +37,11 @@ EM(SKB_DROP_REASON_TCP_OLD_DATA, TCP_OLD_DATA) \ EM(SKB_DROP_REASON_TCP_OVERWINDOW, TCP_OVERWINDOW) \ EM(SKB_DROP_REASON_TCP_OFOMERGE, TCP_OFOMERGE) \ + EM(SKB_DROP_REASON_IP_OUTNOROUTES, IP_OUTNOROUTES) \ + EM(SKB_DROP_REASON_BPF_CGROUP_EGRESS, \ + BPF_CGROUP_EGRESS) \ + EM(SKB_DROP_REASON_IPV6DISABLED, IPV6DISABLED) \ + EM(SKB_DROP_REASON_NEIGH_CREATEFAIL, NEIGH_CREATEFAIL) \ EMe(SKB_DROP_REASON_MAX, MAX) #undef EM |