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path: root/net/ipv4/tcp_minisocks.c
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Diffstat (limited to 'net/ipv4/tcp_minisocks.c')
-rw-r--r--net/ipv4/tcp_minisocks.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index acb366dd61e6..4b95ec4ed2c8 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -235,7 +235,7 @@ kill:
}
if (paws_reject)
- NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_PAWSESTABREJECTED);
+ __NET_INC_STATS(twsk_net(tw), LINUX_MIB_PAWSESTABREJECTED);
if (!th->rst) {
/* In this case we must reset the TIMEWAIT timer.
@@ -337,7 +337,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
* socket up. We've got bigger problems than
* non-graceful socket closings.
*/
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPTIMEWAITOVERFLOW);
+ NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPTIMEWAITOVERFLOW);
}
tcp_update_metrics(sk);
@@ -545,7 +545,7 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
newtp->rack.mstamp.v64 = 0;
newtp->rack.advanced = 0;
- TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_PASSIVEOPENS);
+ __TCP_INC_STATS(sock_net(sk), TCP_MIB_PASSIVEOPENS);
}
return newsk;
}
@@ -704,10 +704,13 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
if (paws_reject || !tcp_in_window(TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
tcp_rsk(req)->rcv_nxt, tcp_rsk(req)->rcv_nxt + req->rsk_rcv_wnd)) {
/* Out of window: send ACK and drop. */
- if (!(flg & TCP_FLAG_RST))
+ if (!(flg & TCP_FLAG_RST) &&
+ !tcp_oow_rate_limited(sock_net(sk), skb,
+ LINUX_MIB_TCPACKSKIPPEDSYNRECV,
+ &tcp_rsk(req)->last_oow_ack_time))
req->rsk_ops->send_ack(sk, skb, req);
if (paws_reject)
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
+ __NET_INC_STATS(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
return NULL;
}
@@ -726,7 +729,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
* "fourth, check the SYN bit"
*/
if (flg & (TCP_FLAG_RST|TCP_FLAG_SYN)) {
- TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
+ __TCP_INC_STATS(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
goto embryonic_reset;
}
@@ -749,7 +752,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
if (req->num_timeout < inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
inet_rsk(req)->acked = 1;
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDEFERACCEPTDROP);
+ __NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPDEFERACCEPTDROP);
return NULL;
}
@@ -788,7 +791,7 @@ embryonic_reset:
}
if (!fastopen) {
inet_csk_reqsk_queue_drop(sk, req);
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
+ __NET_INC_STATS(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
}
return NULL;
}