diff options
| author |   Wei Wang <weiwan@google.com> | 2017-04-20 14:45:47 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-04-24 14:27:17 -0400 |
| commit | 46c2fa39877ed70415ee2b1acfb9129e956f6de4 (patch) | |
| tree | a10691f0b2436b49fb8c172ea4be7b16693aa934 /net/ipv4/tcp_input.c | |
| parent | net/tcp_fastopen: Disable active side TFO in certain scenarios (diff) | |
| download | linux-dev-46c2fa39877ed70415ee2b1acfb9129e956f6de4.tar.xz linux-dev-46c2fa39877ed70415ee2b1acfb9129e956f6de4.zip | |
net/tcp_fastopen: Add snmp counter for blackhole detection
This counter records the number of times the firewall blackhole issue is
detected and active TFO is disabled.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9f342a67dc74..5af2f04f8859 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5307,7 +5307,7 @@ static bool tcp_validate_incoming(struct sock *sk, struct sk_buff *skb, */ if (tp->syn_fastopen && !tp->data_segs_in && sk->sk_state == TCP_ESTABLISHED) - tcp_fastopen_active_disable(); + tcp_fastopen_active_disable(sk); tcp_send_challenge_ack(sk, skb); } goto discard; @@ -6061,7 +6061,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb) after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt)) { /* Receive out of order FIN after close() */ if (tp->syn_fastopen && th->fin) - tcp_fastopen_active_disable(); + tcp_fastopen_active_disable(sk); tcp_done(sk); NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTONDATA); return 1; |