wolf SSL / MQTTS

MQTT and MQTTS with wolfSSL TSL library

Dependencies:   FP MQTTPacket

Dependents:   YoPlegma

Fork of MQTT by MQTT

MQTT is light weight publish/subscribe based messaging protocol for M2M, IoT. This library was forked from MQTT https://developer.mbed.org/teams/mqtt for adding MQTTS security layer on the protocol. TLS(SSL) part of the library is by wolfSSL.https://developer.mbed.org/users/wolfSSL/code/wolfSSL/

"connect" method was extended for TLS. Rest of API's stay compatible with MQTT.

connect methode

 int connect(char* hostname, int port,  const char *certName = NULL, int timeout=1000)

The 3rd argument certName can be following values.

  • NULL: connecting with MQTT
  • pointer to certificate file: connecting with MQTTS. PEM or DER for server verification.
  • pointer to NULL string: connecting with MQTTS without server verification. This option is for prototyping only, not recommended in security perspective.

日本語：https://developer.mbed.org/users/wolfSSL/code/MQTTS/wiki/MQTTSライブラリ

MQTTClient.h

Committer:
icraggs
Date:
2014-03-31
Revision:
3:dbff6b768d28
Parent:
2:dcfdd2abfe71
Child:
4:4ef00243708e

File content as of revision 3:dbff6b768d28:

/**
 * @file    MQTTPubSub.h
 * @brief   API - for MQTT
 * @author  
 * @version 1.0
 * @see     
 *
 * Copyright (c) 2014
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#if !defined(MQTTCLIENT_H)
#define MQTTCLIENT_H

#include <vector>

#include "mbed.h"
#include "FP.h"
#include "MQTTPacket.h"
#include "include_me.h"

namespace MQTT
{

class Client;

enum QoS { QOS0, QOS1, QOS2 };

class Result
{
    /* success or failure result data */
    Client* client;
};

struct Message
{
    enum QoS qos;
    bool retained;
    bool dup;
    unsigned short msgid;
    void *payload;
    size_t payloadlen;
};

  
class Client
{
    
public:    

    static FP<void, Result*> None;   // default argument of no result handler to indicate call should be blocking
    
    Client(IPStack* ipstack, const int buffer_size = 100); 
       
    int connect(MQTTPacket_connectData* options = 0, FP<void, Result*> resultHandler = None);
        
    int publish(char* topic, Message* message, FP<void, Result*> resultHandler = None);
    
    int subscribe(char* topicFilter, int qos, FP<void, Message*> messageHandler, FP<void, Result*> resultHandler = None);
    
    int unsubscribe(char* topicFilter, FP<void, Result*> resultHandler = None);
    
    int disconnect(int timeout, FP<void, Result*> resultHandler = None);
    
private:

    void cycle();

    int decodePacket(int* value, int timeout);
    int readPacket(char* buf, int buflen, int timeout = -1);
    int sendPacket(int length);
    
    IPStack* ipstack;
    char* buf;
    int buflen;
    
};

}

#endif