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| author | Eric Dumazet | 2016-02-06 20:16:28 +0100 |
|---|---|---|
| committer | David S. Miller | 2016-02-06 22:49:58 +0100 |
| commit | e3e17b773bfe45462b7f3fae20c550025975cb13 (patch) | |
| tree | 88f3bed2189c90a3eae7c2dbde31ca614da95e6e /include/net/tcp.h | |
| parent | Merge branch 'tipc-topology-updates' (diff) | |
| download | kernel-qcow2-linux-e3e17b773bfe45462b7f3fae20c550025975cb13.tar.gz kernel-qcow2-linux-e3e17b773bfe45462b7f3fae20c550025975cb13.tar.xz kernel-qcow2-linux-e3e17b773bfe45462b7f3fae20c550025975cb13.zip | |
tcp: fastopen: call tcp_fin() if FIN present in SYNACK
When we acknowledge a FIN, it is not enough to ack the sequence number
and queue the skb into receive queue. We also have to call tcp_fin()
to properly update socket state and send proper poll() notifications.
It seems we also had the problem if we received a SYN packet with the
FIN flag set, but it does not seem an urgent issue, as no known
implementation can do that.
Fixes: 61d2bcae99f6 ("tcp: fastopen: accept data/FIN present in SYNACK message")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 27f4c733116d..479d535609fd 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -568,6 +568,7 @@ void tcp_rearm_rto(struct sock *sk); void tcp_synack_rtt_meas(struct sock *sk, struct request_sock *req); void tcp_reset(struct sock *sk); void tcp_skb_mark_lost_uncond_verify(struct tcp_sock *tp, struct sk_buff *skb); +void tcp_fin(struct sock *sk); /* tcp_timer.c */ void tcp_init_xmit_timers(struct sock *); |