From 7574c6a01cd548c4000bf60a60f7fbafe9e3ff30 Mon Sep 17 00:00:00 2001
From: Frederic Lecaille <flecaille@haproxy.com>
Date: Wed, 11 Feb 2026 15:11:27 +0100
Subject: [PATCH] MINOR: httpterm: add "httpterm" run mode

Add new "httpterm" new working mode for haproxy frontends only.
This makes the frontends work as httpterm HTTP benchmark servers.
All the HTTP protocols are supported.
---
 doc/configuration.txt |  3 +++
 src/cfgparse-listen.c | 20 +++++++++++++++++---
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/doc/configuration.txt b/doc/configuration.txt
index 187ef4d1b..015d00a14 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -9295,6 +9295,9 @@ mode { tcp|http|log|spop }
               processing and switching will be possible. This is the mode which
               brings HAProxy most of its value.
 
+    httpterm  The frontend will work in httpterm HTTP benchmark mode. This is
+              not supported by backends. See doc/httpterm.txt for details.
+
     log       When used in a backend section, it will turn the backend into a
               log backend. Such backend can be used as a log destination for
               any "log" directive by using the "backend@<name>" syntax. Log
diff --git a/src/cfgparse-listen.c b/src/cfgparse-listen.c
index 9a680ef09..2cc5f5bd5 100644
--- a/src/cfgparse-listen.c
+++ b/src/cfgparse-listen.c
@@ -18,6 +18,7 @@
 #include <haproxy/compression-t.h>
 #include <haproxy/connection.h>
 #include <haproxy/extcheck.h>
+#include <haproxy/hstream.h>
 #include <haproxy/http_ana.h>
 #include <haproxy/http_htx.h>
 #include <haproxy/http_ext.h>
@@ -645,9 +646,22 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 
 		mode = str_to_proxy_mode(args[1]);
 		if (!mode) {
-			ha_alert("parsing [%s:%d] : unknown proxy mode '%s'.\n", file, linenum, args[1]);
-			err_code |= ERR_ALERT | ERR_FATAL;
-			goto out;
+			if (strcmp(args[1], "httpterm") == 0) {
+				if (!(curproxy->cap & PR_CAP_FE)) {
+					ha_alert("parsing [%s:%d] : mode httpterm is only applicable"
+					         " on proxies with frontend capability.\n", file, linenum);
+					err_code |= ERR_ALERT | ERR_FATAL;
+					goto out;
+				}
+
+				mode = PR_MODE_HTTP;
+				curproxy->stream_new_from_sc = hstream_new;
+			}
+			else {
+				ha_alert("parsing [%s:%d] : unknown proxy mode '%s'.\n", file, linenum, args[1]);
+				err_code |= ERR_ALERT | ERR_FATAL;
+				goto out;
+			}
 		}
 		else if ((mode == PR_MODE_SYSLOG || mode == PR_MODE_SPOP) &&
 		         !(curproxy->cap & PR_CAP_BE)) {