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| author | David S. Miller <davem@davemloft.net> | 2021-04-26 12:00:00 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-26 12:00:00 -0700 |
| commit | 6876a18d3361e1893187970e1881a1d88d894d3f (patch) | |
| tree | c79dfb4843b82d9346cae1dce68d9b1cfece1715 /net/mptcp | |
| parent | 0ea1041bfa3aa2971f858edd9e05477c2d3d54a0 (diff) | |
| parent | bbd6f0a948139970f4a615dff189d9a503681a39 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/protocol.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 8bf21996734d..29a2d690d8d5 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -392,6 +392,14 @@ static bool mptcp_pending_data_fin(struct sock *sk, u64 *seq) return false; } +static void mptcp_set_datafin_timeout(const struct sock *sk) +{ + struct inet_connection_sock *icsk = inet_csk(sk); + + mptcp_sk(sk)->timer_ival = min(TCP_RTO_MAX, + TCP_RTO_MIN << icsk->icsk_retransmits); +} + static void mptcp_set_timeout(const struct sock *sk, const struct sock *ssk) { long tout = ssk && inet_csk(ssk)->icsk_pending ? @@ -1062,7 +1070,7 @@ out: } if (snd_una == READ_ONCE(msk->snd_nxt)) { - if (msk->timer_ival) + if (msk->timer_ival && !mptcp_data_fin_enabled(msk)) mptcp_stop_timer(sk); } else { mptcp_reset_timer(sk); @@ -2287,8 +2295,19 @@ static void __mptcp_retrans(struct sock *sk) __mptcp_clean_una_wakeup(sk); dfrag = mptcp_rtx_head(sk); - if (!dfrag) + if (!dfrag) { + if (mptcp_data_fin_enabled(msk)) { + struct inet_connection_sock *icsk = inet_csk(sk); + + icsk->icsk_retransmits++; + mptcp_set_datafin_timeout(sk); + mptcp_send_ack(msk); + + goto reset_timer; + } + return; + } ssk = mptcp_subflow_get_retrans(msk); if (!ssk) @@ -2474,6 +2493,8 @@ void mptcp_subflow_shutdown(struct sock *sk, struct sock *ssk, int how) pr_debug("Sending DATA_FIN on subflow %p", ssk); mptcp_set_timeout(sk, ssk); tcp_send_ack(ssk); + if (!mptcp_timer_pending(sk)) + mptcp_reset_timer(sk); } break; } |