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| author | Menglong Dong <imagedong@tencent.com> | 2022-02-20 15:06:32 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-20 13:55:31 +0000 |
| commit | 643b622b51f1f0015e0a80f90b4ef9032e6ddb1b (patch) | |
| tree | c5cdcf17c09836636d408d1581b3982dc2ca55a8 /include/trace | |
| parent | c0e3154d9c889e1aa1af098f40301395f2e33d8a (diff) | |
| download | linux-643b622b51f1f0015e0a80f90b4ef9032e6ddb1b.tar.gz linux-643b622b51f1f0015e0a80f90b4ef9032e6ddb1b.tar.bz2 linux-643b622b51f1f0015e0a80f90b4ef9032e6ddb1b.zip | |
net: tcp: add skb drop reasons to tcp_v{4,6}_inbound_md5_hash()
Pass the address of drop reason to tcp_v4_inbound_md5_hash() and
tcp_v6_inbound_md5_hash() to store the reasons for skb drops when this
function fails. Therefore, the drop reason can be passed to
kfree_skb_reason() when the skb needs to be freed.
Following drop reasons are added:
SKB_DROP_REASON_TCP_MD5NOTFOUND
SKB_DROP_REASON_TCP_MD5UNEXPECTED
SKB_DROP_REASON_TCP_MD5FAILURE
SKB_DROP_REASON_TCP_MD5* above correspond to LINUX_MIB_TCPMD5*
Reviewed-by: Mengen Sun <mengensun@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/skb.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h index cfcfd26399f7..46c06b0be850 100644 --- a/include/trace/events/skb.h +++ b/include/trace/events/skb.h @@ -27,6 +27,10 @@ EM(SKB_DROP_REASON_IP_NOPROTO, IP_NOPROTO) \ EM(SKB_DROP_REASON_SOCKET_RCVBUFF, SOCKET_RCVBUFF) \ EM(SKB_DROP_REASON_PROTO_MEM, PROTO_MEM) \ + EM(SKB_DROP_REASON_TCP_MD5NOTFOUND, TCP_MD5NOTFOUND) \ + EM(SKB_DROP_REASON_TCP_MD5UNEXPECTED, \ + TCP_MD5UNEXPECTED) \ + EM(SKB_DROP_REASON_TCP_MD5FAILURE, TCP_MD5FAILURE) \ EMe(SKB_DROP_REASON_MAX, MAX) #undef EM |