--- libaitmqtt/inc/aitmqtt.h	2016/09/14 15:52:36	1.3.4.1
+++ libaitmqtt/inc/aitmqtt.h	2022/09/12 21:52:57	1.3.4.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitmqtt.h,v 1.3.4.1 2016/09/14 15:52:36 misho Exp $
+* $Id: aitmqtt.h,v 1.3.4.2 2022/09/12 21:52:57 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ terms:
 All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
 
-Copyright 2004 - 2016
+Copyright 2004 - 2022
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -49,7 +49,7 @@ SUCH DAMAGE.
 
 #define MAX_CONNID		24
 #define MAX_CRED		13
-#define MQTTMSG_MAX		65529
+#define MQTTMSG_MAX		65535
 #define MQTT_DATA_MAX		268435455
 
 #define MQTT_PROTO_VER		3
@@ -88,6 +88,7 @@ struct mqtthdr {
 #define MQTT_TYPE_PINGREQ	12	/* PING request */
 #define MQTT_TYPE_PINGRESP	13	/* PING response */
 #define MQTT_TYPE_DISCONNECT	14	/* client is disconnecting */
+#define MQTT_TYPE_AUTH		15	/* authentication exchange */
 #define MQTT_TYPE_MAX		15	/* reserved */
 
 #define MQTT_FLAG_DUP		1	/* This flag is set when the client or server attempts to re-deliver