About error code -208 on cc3100

Gavin Lin1

Other Parts Discussed in Thread: CC3100

I make a SSL client with cc3100. But I can't connect to the test server and I get the error code -208 when I call sl_Connect().

I check the error code definition of -208 and get the below definition:

#define SL_NET_APP_DNS_GET_SERVICE_LIST_FLAG_ERROR (-208)

#define SL_SOCKET_ERROR_E (-208) /* Error state on socket */

#define SL_ESEC_SOCKET_ERROR_E (-208) /* error state on socket */

But I have no idea which one I got and what is the meaning.

Is there the more detailed description about these error code?

Or I just have error code and don't know how to follow up.

thanks

Gavin

over 10 years ago

0 Alon Srednizki over 10 years ago

TI__Mastermind 18455 points

Hi Gavin,

Can you please check what was the return value of sl_Socket() API? Did you make sure to configure the socket as a secured socket, using SL_SEC_SOCKET?

Thanks,
Alon

0 Gavin Lin1 over 10 years ago in reply to Alon Srednizki

Expert 1875 points

Hi Alon

After doing more test, I find the failed case is caused by server shut down connection suddenly.

Even thought I find the reason, I still can't get the clear information of this error code.

Do you have more detailed about this error code?

thanks
Gavin

0 Alon Srednizki over 10 years ago in reply to Gavin Lin1

TI__Mastermind 18455 points

Hi Gavin,

I'm sorry that this is not documented properly. We will work to fix it.
This is a SSL error that means that the socket did not open correctly or the user lost the TCP connection during the SSL HANDSHAKE.

Thanks,
Alon

0 Russell de Pina over 10 years ago in reply to Alon Srednizki

Prodigy 20 points

Hi,

I am getting the same error code as well, and no other clients (e.g. Postman, IE, Chrome, etc) have problems connecting with the server via https. My code basically follows your example, but it does not work for https. My cert is SHA256. Does the cc3100 support this?

0 Alon Srednizki over 10 years ago in reply to Russell de Pina

TI__Mastermind 18455 points

Hi Russell,

Actually, we have just recently released a service pack adding support for SHA256.
Please make sure you have updated your service pack to 1.0.0.10.0.

Thanks,
Alon

0 Russell de Pina over 10 years ago in reply to Alon Srednizki

Prodigy 20 points

Thanks Alon,

A follow up question, does this service pack update include support for certificates that use a 2048 bit public key as opposed to 1024 bit? I've noticed that the device will connect properly to Root CA certs that use the 1024 bit public key, but not the 2048 bit.

Thanks,

Russell

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About error code -208 on cc3100