diff options
| author | Menglong Dong <imagedong@tencent.com> | 2022-02-05 15:47:37 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-07 11:18:49 +0000 |
| commit | 10580c4791902571777603cb980414892dd5f149 (patch) | |
| tree | 8b30cc3181e1bc1a10e59d055479a844584e8dd1 | |
| parent | c1f166d1f7eef212096a98b22f5acf92f9af353d (diff) | |
| download | linux-10580c4791902571777603cb980414892dd5f149.tar.gz linux-10580c4791902571777603cb980414892dd5f149.tar.bz2 linux-10580c4791902571777603cb980414892dd5f149.zip | |
net: ipv4: use kfree_skb_reason() in ip_protocol_deliver_rcu()
Replace kfree_skb() with kfree_skb_reason() in ip_protocol_deliver_rcu().
Following new drop reasons are introduced:
SKB_DROP_REASON_XFRM_POLICY
SKB_DROP_REASON_IP_NOPROTO
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/skbuff.h | 2 | ||||
| -rw-r--r-- | include/trace/events/skb.h | 2 | ||||
| -rw-r--r-- | net/ipv4/ip_input.c | 5 |
3 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4baba45f223d..2a64afa97910 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -339,6 +339,8 @@ enum skb_drop_reason { * is multicast, but L3 is * unicast. */ + SKB_DROP_REASON_XFRM_POLICY, /* xfrm policy check failed */ + SKB_DROP_REASON_IP_NOPROTO, /* no support for IP protocol */ SKB_DROP_REASON_MAX, }; diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h index 485a1d3034a4..985e481c092d 100644 --- a/include/trace/events/skb.h +++ b/include/trace/events/skb.h @@ -23,6 +23,8 @@ EM(SKB_DROP_REASON_IP_RPFILTER, IP_RPFILTER) \ EM(SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST, \ UNICAST_IN_L2_MULTICAST) \ + EM(SKB_DROP_REASON_XFRM_POLICY, XFRM_POLICY) \ + EM(SKB_DROP_REASON_IP_NOPROTO, IP_NOPROTO) \ EMe(SKB_DROP_REASON_MAX, MAX) #undef EM diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index d5222c0fa87c..d94f9f7e60c3 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -196,7 +196,8 @@ resubmit: if (ipprot) { if (!ipprot->no_policy) { if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) { - kfree_skb(skb); + kfree_skb_reason(skb, + SKB_DROP_REASON_XFRM_POLICY); return; } nf_reset_ct(skb); @@ -215,7 +216,7 @@ resubmit: icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PROT_UNREACH, 0); } - kfree_skb(skb); + kfree_skb_reason(skb, SKB_DROP_REASON_IP_NOPROTO); } else { __IP_INC_STATS(net, IPSTATS_MIB_INDELIVERS); consume_skb(skb); |