diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-03-22 08:10:21 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 12:11:09 +0200 |
| commit | a4ec3655df97c0b470f3f659c57369d985c8ca4d (patch) | |
| tree | f837fa7db1a9b0914fa8a2280e8f632245770b9b | |
| parent | 1bee9ed85a22642d4419cbe7aa62775c8aa65ea5 (diff) | |
tcp: initialize icsk_ack.lrcvtime at session start time
commit 15bb7745e94a665caf42bfaabf0ce062845b533b upstream.
icsk_ack.lrcvtime has a 0 value at socket creation time.
tcpi_last_data_recv can have bogus value if no payload is ever received.
This patch initializes icsk_ack.lrcvtime for active sessions
in tcp_finish_connect(), and for passive sessions in
tcp_create_openreq_child()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_minisocks.c | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 4d55908f8..0f4556b17 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5380,6 +5380,7 @@ void tcp_finish_connect(struct sock *sk, struct sk_buff *skb) struct inet_connection_sock *icsk = inet_csk(sk); tcp_set_state(sk, TCP_ESTABLISHED); + icsk->icsk_ack.lrcvtime = tcp_time_stamp; if (skb != NULL) { icsk->icsk_af_ops->sk_rx_dst_set(sk, skb); @@ -5581,7 +5582,6 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb, * to stand against the temptation 8) --ANK */ inet_csk_schedule_ack(sk); - icsk->icsk_ack.lrcvtime = tcp_time_stamp; tcp_enter_quickack_mode(sk); inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK, TCP_DELACK_MAX, sysctl_tcp_rto_max); diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index c2b195b85..61f04ef82 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -405,6 +405,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, newtp->srtt = 0; newtp->mdev = TCP_TIMEOUT_INIT; newicsk->icsk_rto = TCP_TIMEOUT_INIT; + newicsk->icsk_ack.lrcvtime = tcp_time_stamp; newtp->packets_out = 0; newtp->retrans_out = 0; |