From b1dc2a742d298f4a8a86034f8495cc9a0f1292bc Mon Sep 17 00:00:00 2001
From: JianBo He <heeejianbo@163.com>
Date: Fri, 24 Sep 2021 22:29:35 +0800
Subject: [PATCH] chore: add mqtt-sn protocol define

---
 include/emqx_mqtt.hrl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/emqx_mqtt.hrl b/include/emqx_mqtt.hrl
index 078baf301..261245e60 100644
--- a/include/emqx_mqtt.hrl
+++ b/include/emqx_mqtt.hrl
@@ -30,11 +30,13 @@
 %% MQTT Protocol Version and Names
 %%--------------------------------------------------------------------
 
+-define(MQTT_SN_PROTO_V1, 1).
 -define(MQTT_PROTO_V3, 3).
 -define(MQTT_PROTO_V4, 4).
 -define(MQTT_PROTO_V5, 5).
 
 -define(PROTOCOL_NAMES, [
+    {?MQTT_SN_PROTO_V1, <<"MQTT-SN">>}, %% XXX:Compatible with emqx-sn plug-in
     {?MQTT_PROTO_V3, <<"MQIsdp">>},
     {?MQTT_PROTO_V4, <<"MQTT">>},
     {?MQTT_PROTO_V5, <<"MQTT">>}]).