From 21810c08bf17a171e8c6b41ca9eecb4ab49679bb Mon Sep 17 00:00:00 2001
From: fengzero <fengzero@fengzero.com>
Date: Thu, 2 Jul 2026 08:12:23 +0000
Subject: [PATCH] mqtt check item case

---
 plugins/mqtt/mqtt_handle.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugins/mqtt/mqtt_handle.c b/plugins/mqtt/mqtt_handle.c
index 88da23cb7..fdc3eb58f 100644
--- a/plugins/mqtt/mqtt_handle.c
+++ b/plugins/mqtt/mqtt_handle.c
@@ -583,7 +583,9 @@ void handle_write_req(neu_mqtt_qos_e qos, const char *topic,
         }
 
         for (size_t i = 0; i < wr->n_tags; i++) {
-            if (wr->tags[i]->name == NULL || wr->tags[i]->value == NULL) {
+            if (wr->tags[i]->name == NULL ||
+                wr->tags[i]->item_case != MODEL__DATA_ITEM__ITEM_VALUE ||
+                wr->tags[i]->value == NULL) {
                 plog_error(plugin, "write request tag missing name/value");
                 model__write_request__free_unpacked(wr, NULL);
                 return;