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: MQTTmbed.h

Revision:
43:21da1f744243
Parent:
29:833386b16f3e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MQTTmbed.h	Mon Sep 29 11:34:26 2014 +0000
@@ -0,0 +1,49 @@
+#if !defined(MQTT_MBED_H)
+#define MQTT_MBED_H
+
+#include "mbed.h"
+
+class Countdown
+{
+public:
+    Countdown()
+    {
+        t = Timer();   
+    }
+    
+    Countdown(int ms)
+    {
+        t = Timer();
+        countdown_ms(ms);   
+    }
+    
+    
+    bool expired()
+    {
+        return t.read_ms() >= interval_end_ms;
+    }
+    
+    void countdown_ms(unsigned long ms)  
+    {
+        t.stop();
+        interval_end_ms = ms;
+        t.reset();
+        t.start();
+    }
+    
+    void countdown(int seconds)
+    {
+        countdown_ms((unsigned long)seconds * 1000L);
+    }
+    
+    int left_ms()
+    {
+        return interval_end_ms - t.read_ms();
+    }
+    
+private:
+    Timer t;
+    unsigned long interval_end_ms; 
+};
+
+#endif
\ No newline at end of file