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MINOR: quic: Do not send ACK frames when probing

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When we are probing, we do not receive packets, furthermore all ACK frames have
already been sent. This is useless to send ACK when probing the peer. This
modification does not reset the flag which marks the connection as requiring an
ACK frame to be sent. If this is the case, this will be taken into an account
by after the probing process.
This commit is contained in:
Frédéric Lécaille 2022-04-25 10:38:27 +02:00 committed by Amaury Denoyelle
parent 7aef5f4c3f
commit 337108ecda
1 changed files with 1 additions and 1 deletions
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2
src/xprt_quic.c
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@ -5720,7 +5720,7 @@ static int qc_do_build_pkt(unsigned char *pos, const unsigned char *end,
head_len = pos - beg; head_len = pos - beg;
/* Build an ACK frame if required. */ /* Build an ACK frame if required. */
ack_frm_len = 0; ack_frm_len = 0;
if ((qel->pktns->flags & QUIC_FL_PKTNS_ACK_REQUIRED)) { if ((qel->pktns->flags & QUIC_FL_PKTNS_ACK_REQUIRED) && !qel->pktns->tx.pto_probe) {
BUG_ON(eb_is_empty(&qel->pktns->rx.arngs.root)); BUG_ON(eb_is_empty(&qel->pktns->rx.arngs.root));
ack_frm.tx_ack.ack_delay = 0; ack_frm.tx_ack.ack_delay = 0;
ack_frm.tx_ack.arngs = &qel->pktns->rx.arngs; ack_frm.tx_ack.arngs = &qel->pktns->rx.arngs;