Pass parameter to NSS TLS extension?

Question

Ok, now i have my own function that runs inside or after the NSS_init. This functions return 2 values.

Now, my problem is, how to pass this return value to the tls extension inside NSS? I found a file called ssl3ext.c in NSS, but dont have any clue where to start or what to do.

So in the end, I have a Http header with additional information and SSL (https).

Need help. Thanks : )