From d6fb396cfaa71afc9f38d573b8ec6409fe3716de Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 13 Jun 2019 21:22:35 -0700 Subject: ipv4: tcp: fix ACK/RST sent with a transmit delay If we want to set a EDT time for the skb we want to send via ip_send_unicast_reply(), we have to pass a new parameter and initialize ipc.sockc.transmit_time with it. This fixes the EDT time for ACK/RST packets sent on behalf of a TIME_WAIT socket. Fixes: a842fe1425cb ("tcp: add optional per socket transmit delay") Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/tcp.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include/net/tcp.h') diff --git a/include/net/tcp.h b/include/net/tcp.h index 49a178b8d5b2..96e0e53ff440 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -2240,15 +2240,18 @@ static inline void tcp_add_tx_delay(struct sk_buff *skb, skb->skb_mstamp_ns += (u64)tp->tcp_tx_delay * NSEC_PER_USEC; } -static inline void tcp_set_tx_time(struct sk_buff *skb, - const struct sock *sk) +/* Compute Earliest Departure Time for some control packets + * like ACK or RST for TIME_WAIT or non ESTABLISHED sockets. + */ +static inline u64 tcp_transmit_time(const struct sock *sk) { if (static_branch_unlikely(&tcp_tx_delay_enabled)) { u32 delay = (sk->sk_state == TCP_TIME_WAIT) ? tcp_twsk(sk)->tw_tx_delay : tcp_sk(sk)->tcp_tx_delay; - skb->skb_mstamp_ns = tcp_clock_ns() + (u64)delay * NSEC_PER_USEC; + return tcp_clock_ns() + (u64)delay * NSEC_PER_USEC; } + return 0; } #endif /* _TCP_H */ -- cgit v1.2.3-59-g8ed1b