MQTT fails to connect using SSL

[HariKrishnan]

I am using org eclipse paho c Library to connect to a Mosquitto Broker over SSL . But it returns status -1 . 

 

The code is like : 

    MQTTClient client;

    MQTTClient_connectOptions conn_opts = MQTTClient_connectOptions_initializer;

    MQTTClient_SSLOptions sslopts = MQTTClient_SSLOptions_initializer;

    MQTTClient_message pubmsg = MQTTClient_message_initializer;

    MQTTClient_deliveryToken token;

    int rc;

    MQTTClient_create(&client, ADDRESS, CLIENTID,

        MQTTCLIENT_PERSISTENCE_NONE, NULL);

    conn_opts.keepAliveInterval = 20;

    conn_opts.cleansession = 1;

    sslopts.trustStore="(path to ca.crt)";

    sslopts.keyStore="(path to client.crt )";

    conn_opts.ssl=&sslopts;

    MQTTClient_setCallbacks(client, NULL, connlost, msgarrvd, delivered);

    if ((rc = MQTTClient_connect(client, &conn_opts)) != MQTTCLIENT_SUCCESS)

    {

        printf("Failed to connect, return code %d\n", rc);

        exit(-1);

    }

I have the tried the same thing using Java Library of Eclipse Paho by using the same certificates and it gets connected .. 

Plz Help .. 

[Andy Piper]

Hi 

This group is for discussion of the MQTT protocol in general rather than specific implementations.

Probably the best thing to do would be to ask this question on the paho-dev mailing list where the Eclipse Paho team can help you ... it doesn't sound like it is a mosquitto issue if the Java client is working... if it is a server issue you could ask on the mosquitto list, but I would start by asking the Paho list.

Also note that the Paho C client has tracing options (documented in the README.md) which may help you here.

Andy

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[Sai Surya Narayan]

[Sai Surya Narayan]

Hi HariKrishnan,

Is your problem solved, If so please guide me i am also using Paho-Mqtt C library and i also want to use ssl authentication on that. I am very new to MQTT so please give me some guidelines to use ssl options and authentication in paho-mqtt C library.

Thank you in advance