mqtt_connect fails with error -95 aws_fota

RE: mqtt_connect fails with error -95 aws_fota

Carl Richard — Mon, 07 Sep 2020 08:05:37 GMT

My pleasure! Glad I could help!

Best regards,
Carl Richard

RE: mqtt_connect fails with error -95 aws_fota

lecozahu — Fri, 04 Sep 2020 14:15:07 GMT

Indeed, I did not take the correct amazon root certificate. I can now connect.

thanks a lot for your help!

Best regards,

Lecozahu

RE: mqtt_connect fails with error -95 aws_fota

Carl Richard — Fri, 04 Sep 2020 14:00:03 GMT

That should not be the problem, as I did not modify it either and successfully established a connection.

However, I managed to get the -95 error by using the wrong certificates (as you did previously), so I just want to ensure that your certificates are correct:

CLOUD_CLIENT_PRIVATE_KEY contains the <unique_id>-private.pem

CLOUD_CLIENT_PUBLIC_CERTIFICATE contains the <unique_id>-certificate.pem

CLOUD_CA_CERTIFICATE contains AmazonRootCA1.pem

Is this your current certificates.h configuration?

You have probably followed the readme for the sample, but make sure that every step is correct.

Best regards
Carl Richard

RE: mqtt_connect fails with error -95 aws_fota

lecozahu — Fri, 04 Sep 2020 13:14:47 GMT

I did not modify the variable: CONFIG_CLOUD_CERT_SEC_TAG. Could this be the explanation?

Best regards,

Lecozahu

RE: mqtt_connect fails with error -95 aws_fota

lecozahu — Fri, 04 Sep 2020 12:54:11 GMT

I took the first RSA 2048 certificate (I'm not sure which one exactly to take) but it still doesn't work. I still get the same error...

best regards,

Lecozahu

RE: mqtt_connect fails with error -95 aws_fota

Carl Richard — Fri, 04 Sep 2020 12:30:42 GMT

That could be your error, yes.

The CLOUD_CLIENT_PUBLIC_CERTIFICATE should contain the .cert.perm you received. The CLOUD_CA_CERTIFICATE should contain the AWS root certificate which is found here. Hope this helps!

Best regards,
Carl Richard

RE: mqtt_connect fails with error -95 aws_fota

lecozahu — Fri, 04 Sep 2020 12:24:11 GMT

Hello again!

Yes, I have "... \ n" \ on each line.

For certificates, I have two non-private keys provided by AWS.
A file: .cert.perm that I put in the zone: CLOUD_CA_CERTIFICATE
an another file : .public.key file that I put in the zone: CLOUD_CLIENT_PUBLIC_CERTIFICATE

Could my error come from there?

Best regards,

RE: mqtt_connect fails with error -95 aws_fota

Carl Richard — Fri, 04 Sep 2020 12:02:39 GMT

Hello again!

I'm trying to reproduce the issue myself now. While I'm at it, did you make sure to add the three certificates correctly with < "(...)\n"\ > at every line?

Note aswell that you must add the public certificate, not the public key.

Best regards,
Carl Richard

RE: mqtt_connect fails with error -95 aws_fota

lecozahu — Fri, 04 Sep 2020 10:51:49 GMT

Carl Richard,

I was based on the aws_fota project, I did not touch the main, it is during the initialization of the client that the error appears.
I modified several things:
- I have defined CONFIG_PROVISION_CERTIFICATES
-I modified the certificate with the private, public and CA keys
-I modified in Kconf the address of the broker ending with amazonaws.com
- I modified CONFIG_CLOUD_CLIENT_ID and put it in the name of the object created on aws.
-I kept port 8883

Best regards,

lecozahu

RE: mqtt_connect fails with error -95 aws_fota

Carl Richard — Fri, 04 Sep 2020 10:38:51 GMT

Hello, lecozahu!

What sample have you based your project on and what amendments have you made?

Error -95 is probably EOPNOTSUPP, meaning that the requested operation is not supported on the socket.

Best regards,
Carl Richard