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1/*
2Copyright (c) 2009-2013 Roger Light <roger@atchoo.org>
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7
81. Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
102. Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
133. Neither the name of mosquitto nor the names of its
14 contributors may be used to endorse or promote products derived from
15 this software without specific prior written permission.
16
17THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27POSSIBILITY OF SUCH DAMAGE.
28*/
29
30#ifndef _MQTT3_PROTOCOL_H_
31#define _MQTT3_PROTOCOL_H_
32
33/* For version 3 of the MQTT protocol */
34
35#define PROTOCOL_NAME_v31 "MQIsdp"
36#define PROTOCOL_VERSION_v31 3
37
38#define PROTOCOL_NAME_v311 "MQTT"
39#define PROTOCOL_VERSION_v311 4
40
41/* Message types */
42#define CONNECT 0x10
43#define CONNACK 0x20
44#define PUBLISH 0x30
45#define PUBACK 0x40
46#define PUBREC 0x50
47#define PUBREL 0x60
48#define PUBCOMP 0x70
49#define SUBSCRIBE 0x80
50#define SUBACK 0x90
51#define UNSUBSCRIBE 0xA0
52#define UNSUBACK 0xB0
53#define PINGREQ 0xC0
54#define PINGRESP 0xD0
55#define DISCONNECT 0xE0
56
57#define CONNACK_ACCEPTED 0
58#define CONNACK_REFUSED_PROTOCOL_VERSION 1
59#define CONNACK_REFUSED_IDENTIFIER_REJECTED 2
60#define CONNACK_REFUSED_SERVER_UNAVAILABLE 3
61#define CONNACK_REFUSED_BAD_USERNAME_PASSWORD 4
62#define CONNACK_REFUSED_NOT_AUTHORIZED 5
63
64#define MQTT_MAX_PAYLOAD 268435455
65
66#endif