From: Amaury Denoyelle <adenoyelle@haproxy.com>
Date: Thu, 26 Mar 2026 14:03:04 +0000 (+0100)
Subject: MINOR: mux-quic: prepare traces support for QMux
X-Git-Tag: v3.4-dev8~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce4aab4fdb39d16e3cfc2731d4ce1d6ff9e3a47b;p=thirdparty%2Fhaproxy.git

MINOR: mux-quic: prepare traces support for QMux

Ensure mux-quic traces will be compatible with the new QMux protocol.
This is necessary as the quic_conn element is accessed to display some
transport information. Use conn_is_quic() to protect these accesses.
---

diff --git a/src/qmux_trace.c b/src/qmux_trace.c
index 58cd45d28..b5d85e2ea 100644
--- a/src/qmux_trace.c
+++ b/src/qmux_trace.c
@@ -143,18 +143,19 @@ static char *qcc_app_st_to_str(const enum qcc_app_st st)
 
 void qmux_dump_qcc_info(struct buffer *msg, const struct qcc *qcc)
 {
-	const struct quic_conn *qc = qcc->conn->handle.qc;
+	const struct quic_conn *qc = conn_is_quic(qcc->conn) ? qcc->conn->handle.qc : NULL;
 
 	chunk_appendf(msg, " qcc=%p(%c)", qcc, (qcc->flags & QC_CF_IS_BACK) ? 'B' : 'F');
-	if (qcc->conn->handle.qc)
+	if (qc)
 		chunk_appendf(msg, " qc=%p", qcc->conn->handle.qc);
 	chunk_appendf(msg, " .st=%s .sc=%llu .hreq=%llu .flg=0x%04x",
 	              qcc_app_st_to_str(qcc->app_st), (ullong)qcc->nb_sc,
 	              (ullong)qcc->nb_hreq, qcc->flags);
 
-	chunk_appendf(msg, " .tx=%llu %llu/%llu bwnd=%llu/%llu",
-	              (ullong)qcc->tx.fc.off_soft, (ullong)qcc->tx.fc.off_real, (ullong)qcc->tx.fc.limit,
-	              (ullong)qcc->tx.buf_in_flight, (ullong)qc->path->cwnd);
+	chunk_appendf(msg, " .tx=%llu %llu/%llu",
+	              (ullong)qcc->tx.fc.off_soft, (ullong)qcc->tx.fc.off_real, (ullong)qcc->tx.fc.limit);
+	if (qc)
+		chunk_appendf(msg, " bwnd=%llu/%llu", (ullong)qcc->tx.buf_in_flight, (ullong)qc->path->cwnd);
 }
 
 void qmux_dump_qcs_info(struct buffer *msg, const struct qcs *qcs)