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* Copyright (c) 2014 IBM Corp.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Ian Craggs - initial API and implementation and/or initial documentation
* Xiang Rong - 442039 Add makefile to Embedded C client
*******************************************************************************/
#ifndef MQTTCONNECT_H_
#define MQTTCONNECT_H_
#if !defined(DLLImport)
#define DLLImport
#endif
#if !defined(DLLExport)
#define DLLExport
#endif
typedef union
{
unsigned char all; /**< all connect flags */
#if defined(REVERSED)
struct
{
unsigned int username : 1; /**< 3.1 user name */
unsigned int password : 1; /**< 3.1 password */
unsigned int willRetain : 1; /**< will retain setting */
unsigned int willQoS : 2; /**< will QoS value */
unsigned int will : 1; /**< will flag */
unsigned int cleansession : 1; /**< clean session flag */
unsigned int : 1; /**< unused */
} bits;
#else
struct
{
unsigned int : 1; /**< unused */
unsigned int cleansession : 1; /**< cleansession flag */
unsigned int will : 1; /**< will flag */
unsigned int willQoS : 2; /**< will QoS value */
unsigned int willRetain : 1; /**< will retain setting */
unsigned int password : 1; /**< 3.1 password */
unsigned int username : 1; /**< 3.1 user name */
} bits;
#endif
} MQTTConnectFlags; /**< connect flags byte */
/**
* Defines the MQTT "Last Will and Testament" (LWT) settings for
* the connect packet.
*/
typedef struct
{
/** The eyecatcher for this structure. must be MQTW. */
char struct_id[4];
/** The version number of this structure. Must be 0 */
int struct_version;
/** The LWT topic to which the LWT message will be published. */
MQTTString topicName;
/** The LWT payload. */
MQTTString message;
/**
* The retained flag for the LWT message (see MQTTAsync_message.retained).
*/
unsigned char retained;
/**
* The quality of service setting for the LWT message (see
* MQTTAsync_message.qos and @ref qos).
*/
char qos;
} MQTTPacket_willOptions;
#define MQTTPacket_willOptions_initializer { {'M', 'Q', 'T', 'W'}, 0, {NULL, {0, NULL}}, {NULL, {0, NULL}}, 0, 0 }
typedef struct
{
/** The eyecatcher for this structure. must be MQTC. */
char struct_id[4];
/** The version number of this structure. Must be 0 */
int struct_version;
/** Version of MQTT to be used. 3 = 3.1 4 = 3.1.1
*/
unsigned char MQTTVersion;
MQTTString clientID;
unsigned short keepAliveInterval;
unsigned char cleansession;
unsigned char willFlag;
MQTTPacket_willOptions will;
MQTTString username;
MQTTString password;
} MQTTPacket_connectData;
typedef union
{
unsigned char all; /**< all connack flags */
#if defined(REVERSED)
struct
{
unsigned int sessionpresent : 1; /**< session present flag */
unsigned int : 7; /**< unused */
} bits;
#else
struct
{
unsigned int : 7; /**< unused */
unsigned int sessionpresent : 1; /**< session present flag */
} bits;
#endif
} MQTTConnackFlags; /**< connack flags byte */
#define MQTTPacket_connectData_initializer { {'M', 'Q', 'T', 'C'}, 0, 4, {NULL, {0, NULL}}, 60, 1, 0, \
MQTTPacket_willOptions_initializer, {NULL, {0, NULL}}, {NULL, {0, NULL}} }
DLLExport int MQTTSerialize_connect(unsigned char* buf, int buflen, MQTTPacket_connectData* options);
DLLExport int MQTTDeserialize_connect(MQTTPacket_connectData* data, unsigned char* buf, int len);
DLLExport int MQTTSerialize_connack(unsigned char* buf, int buflen, unsigned char connack_rc, unsigned char sessionPresent);
DLLExport int MQTTDeserialize_connack(unsigned char* sessionPresent, unsigned char* connack_rc, unsigned char* buf, int buflen);
DLLExport int MQTTSerialize_disconnect(unsigned char* buf, int buflen);
DLLExport int MQTTSerialize_pingreq(unsigned char* buf, int buflen);
#endif /* MQTTCONNECT_H_ */
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