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MINOR: quic: Send two ack-eliciting packets when probing packet number spaces

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This is to avoid too much PTO timer expirations for 01RTT and Handshake packet
number spaces. Furthermore we are not limited by the anti-amplication for 01RTT
packet number space. According to the RFC we can send up to two packets.
This commit is contained in:
Frédéric Lécaille 2022-01-17 14:26:12 +01:00 committed by Amaury Denoyelle
parent ce6602d887
commit 0fa553d0c2
1 changed files with 8 additions and 5 deletions
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13
src/xprt_quic.c
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@ -3394,11 +3394,14 @@ static struct task *process_timer(struct task *task, void *ctx, unsigned int sta
st = HA_ATOMIC_LOAD(&qc->state);
if (qc->path->in_flight) {
pktns = quic_pto_pktns(qc, st >= QUIC_HS_ST_COMPLETE, NULL);
if (qc_is_listener(qc) &&
pktns == &qc->pktns[QUIC_TLS_PKTNS_HANDSHAKE] &&
qc->pktns[QUIC_TLS_PKTNS_INITIAL].tx.in_flight)
qc->pktns[QUIC_TLS_PKTNS_INITIAL].tx.pto_probe = 1;
pktns->tx.pto_probe = 1;
if (pktns == &qc->pktns[QUIC_TLS_PKTNS_INITIAL]) {
pktns->tx.pto_probe = 1;
if (qc->pktns[QUIC_TLS_PKTNS_HANDSHAKE].tx.in_flight)
qc->pktns[QUIC_TLS_PKTNS_HANDSHAKE].tx.pto_probe = 1;
}
else {
pktns->tx.pto_probe = 2;
}
}
else if (!qc_is_listener(qc) && st <= QUIC_HS_ST_COMPLETE) {
struct quic_enc_level *iel = &qc->els[QUIC_TLS_ENC_LEVEL_INITIAL];