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tcp: initialize rcv_tstamp for restored sockets

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u32 rcv_tstamp;     /* timestamp of last received ACK */

Its value used in tcp_retransmit_timer, which closes socket
if the last ack was received more then TCP_RTO_MAX ago.

Currently rcv_tstamp is initialized to zero and if tcp_retransmit_timer
is called before receiving a first ack, the connection is closed.

This patch initializes rcv_tstamp to a timestamp, when a socket was
restored.

Cc: Pavel Emelyanov <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Alexey Kuznetsov <[email protected]>
Cc: James Morris <[email protected]>
Cc: Hideaki YOSHIFUJI <[email protected]>
Cc: Patrick McHardy <[email protected]>
Reported-by: Cyrill Gorcunov <[email protected]>
Signed-off-by: Andrey Vagin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Andrew Vagin 2013-08-27 12:20:40 +04:00 • committed by David S. Miller
commit c7781a6e3c
1 changed files with 2 additions and 0 deletions
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2
net/ipv4/tcp_output.c
View file

@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk)
if (likely(!tp->repair))
tp->rcv_nxt = 0;
else
tp->rcv_tstamp = tcp_time_stamp;
tp->rcv_wup = tp->rcv_nxt;
tp->copied_seq = tp->rcv_nxt;