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BUG/MINOR: quic: Missing probing packets when coalescing

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Before having a look at the next encryption level to build packets if there is
no more ack-eliciting frames to send we must check we have not to probe from
the current encryption level anymore. If not, we only send one datagram instead
of sending two datagrams giving less chance to recover from packet loss.
This commit is contained in:
Frédéric Lécaille 2022-03-29 17:41:57 +02:00 committed by Amaury Denoyelle
parent b002145e9f
commit d6570e1789
1 changed files with 1 additions and 1 deletions
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2
src/xprt_quic.c
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@ -2882,7 +2882,7 @@ static int qc_prep_pkts(struct quic_conn *qc, struct qring *qr,
* select the next level.
*/
if ((tel == QUIC_TLS_ENC_LEVEL_INITIAL || tel == QUIC_TLS_ENC_LEVEL_HANDSHAKE) &&
(LIST_ISEMPTY(&qel->pktns->tx.frms))) {
(LIST_ISEMPTY(&qel->pktns->tx.frms) && !qel->pktns->tx.pto_probe)) {
/* If QUIC_TLS_ENC_LEVEL_HANDSHAKE was already reached let's try QUIC_TLS_ENC_LEVEL_APP */
if (tel == QUIC_TLS_ENC_LEVEL_HANDSHAKE && next_tel == tel)
next_tel = QUIC_TLS_ENC_LEVEL_APP;