From: Olivier Houchard <ohouchard@haproxy.com>
Date: Mon, 20 Apr 2026 09:58:57 +0000 (+0200)
Subject: BUG/MEDIUM: checks: Don't forget to set the "alt_proto" field
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=78712c389843ffdfb4cb582b1b30803e6fae1c7d;p=thirdparty%2Fhaproxy.git

BUG/MEDIUM: checks: Don't forget to set the "alt_proto" field

The target address type has been added to checks in commit
d759e60a3292f425aee66384e87ae227ce191c08, but as part of that address
type is the "alt_proto" field, that was not properly set for dynamic
servers, That could lead to checks not working for any protocol that use
a non-zero alt_proto, such as QUIC. So set it properly.
---

diff --git a/src/check.c b/src/check.c
index 481cab22f..077956559 100644
--- a/src/check.c
+++ b/src/check.c
@@ -1839,8 +1839,11 @@ int init_srv_check(struct server *srv)
 			if (srv->check.port) {
 				srv->check.addr_type.proto_type = PROTO_TYPE_STREAM;
 				srv->check.addr_type.xprt_type = PROTO_TYPE_STREAM;
-			} else
+				srv->check.alt_proto = 0;
+			} else {
 				srv->check.addr_type = srv->addr_type;
+				srv->check.alt_proto = srv->alt_proto;
+			}
 		}
 		if (net_addr_type_is_quic(&srv->check.addr_type))
 			srv->check.xprt = xprt_get(XPRT_QUIC);