From: Frédéric Lécaille <flecaille@haproxy.com>
Date: Thu, 30 Dec 2021 22:16:51 +0000 (+0100)
Subject: MINOR: quic: Probe Initial packet number space more often
X-Git-Tag: v2.6-dev1~173
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=db6a4727cf996e723f6f525f5757300c1b8395bb;p=thirdparty%2Fhaproxy.git

MINOR: quic: Probe Initial packet number space more often

Especially when the PTO expires for Handshake packet number space and when
Initial packets are still flying (for QUIC servers).
---

diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index 5d9b82e25f..3152f27d36 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -3323,6 +3323,10 @@ 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 (objt_listener(qc->conn->target) &&
+		    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;
 	}
 	else if (objt_server(qc->conn->target) && st <= QUIC_HS_ST_COMPLETE) {