From: Olivier Houchard <ohouchard@haproxy.com>
Date: Wed, 19 Aug 2026 14:10:50 +0000 (+0200)
Subject: MINOR: hlua: Forbid lua-load with per-tgroup fd tables
X-Git-Tag: v3.5-dev5~5
X-Git-Url: https://git.kaiwu.me/?a=commitdiff_plain;h=ddf20dc96af47a0c9f7aa45ba31e44f25b88a525;p=haproxy.git

MINOR: hlua: Forbid lua-load with per-tgroup fd tables

lua-load may be used to create file descriptors that it expects to be
global to the process, which is not true file tune.fd.tables
per-thread-group, so forbid it.
---

diff --git a/src/hlua.c b/src/hlua.c
index 1958da548..1882db98a 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -12991,6 +12991,7 @@ static int hlua_load_state(char **args, lua_State *L, char **err)
 	return 0;
 }
 
+static int hlua_gload = 0;
 static int hlua_load(char **args, int section_type, struct proxy *curpx,
                      const struct proxy *defpx, const char *file, int line,
                      char **err)
@@ -13005,6 +13006,7 @@ static int hlua_load(char **args, int section_type, struct proxy *curpx,
 	/* loading for global state */
 	hlua_state_id = 0;
 	ha_set_thread(NULL);
+	hlua_gload = 1;
 	return hlua_load_state(&args[1], hlua_states[0], err);
 }
 
@@ -13531,6 +13533,11 @@ int hlua_post_init()
 	}
 #endif
 
+	if (hlua_gload && (global.tune.options & GTUNE_NO_TG_FD_SHARING) &&
+	    global.nbtgroups > 1) {
+		ha_alert("tune.fd.tables per-thread-groups is incompatible with lua-load, please use lua-load-per-thread");
+		return 0;
+	}
 	/* Perform post init of common thread */
 	hlua_state_id = 0;
 	ha_set_thread(&ha_thread_info[0]);