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

Diff: MQTTClient.h

Revision:
2:dcfdd2abfe71
Parent:
0:fe461e4d7afe
Child:
3:dbff6b768d28
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MQTTClient.h	Fri Mar 28 13:39:25 2014 +0000
@@ -0,0 +1,92 @@
+/**
+ * @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"
+
+class MQTTClient;
+
+enum QoS { QOS0, QOS1, QOS2 };
+
+class MQTTResult
+{
+    /* success or failure result data */
+    MQTTClient* client;
+};
+
+struct MQTTMessage
+{
+    enum QoS qos;
+    bool retained;
+    bool dup;
+    unsigned short msgid;
+    void *payload;
+    size_t payloadlen;
+};
+
+struct MQTTConnectOptions
+{
+    unsigned short keepAliveInterval;
+    bool cleansession;
+    char* username;
+    char* password;
+    int timeout;
+    std::vector<char*> serverURIs;
+};
+
+  
+class MQTTClient
+{
+    
+public:    
+
+    static FP<void, MQTTResult*> None;   // default argument of no result handler to indicate call should be blocking
+    
+    MQTTClient(char* serverURI, char* clientId = "", const int buffer_size = 100); 
+       
+    int connect(MQTTConnectOptions* options = 0, FP<void, MQTTResult*> resultHandler = None);
+        
+    int publish(char* topic, MQTTMessage* message, FP<void, MQTTResult*> resultHandler = None);
+    
+    int subscribe(char* topicFilter, int qos, FP<void, MQTTMessage*> messageHandler, FP<void, MQTTResult*> resultHandler = None);
+    
+    int unsubscribe(char* topicFilter, FP<void, MQTTResult*> resultHandler = None);
+    
+    int disconnect(int timeout, FP<void, MQTTResult*> resultHandler = None);
+    
+private:
+
+    int sendPacket(char* buf, int buflen);
+
+    char* clientId;
+    char* serverURI;
+    char* buf;
+    int buflen;
+    
+};
+
+#endif