From 1e08247961e482b68ecbfd384d3f74792047cfbe Mon Sep 17 00:00:00 2001
From: Amaury Denoyelle <adenoyelle@haproxy.com>
Date: Thu, 26 Mar 2026 14:57:19 +0100
Subject: [PATCH] MINOR: connection: add function to identify a QUIC connection

Add a simple helper conn_is_quic() function which tells if a connection
runs over QUIC protocol. It will be useful when implementing QMux
alternative.
---
 include/haproxy/connection.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/haproxy/connection.h b/include/haproxy/connection.h
index 03c3306ae..c6e112733 100644
--- a/include/haproxy/connection.h
+++ b/include/haproxy/connection.h
@@ -691,6 +691,12 @@ static inline int conn_is_ssl(struct connection *conn)
 	return !!conn_get_ssl_sock_ctx(conn);
 }
 
+/* Returns true if connection runs over QUIC. */
+static inline int conn_is_quic(const struct connection *conn)
+{
+	return conn->flags & CO_FL_FDLESS;
+}
+
 /* Returns true if connection must be reversed. */
 static inline int conn_is_reverse(const struct connection *conn)
 {