-/*
- * Values for flag determining certificate validity.
- * These values are compatible with return value of function
- * mbedtls_ssl_get_verify_result(). There is no value for
- * "invalid certificate", this value is set by the function
- * mbedtls_ssl_get_verify_result().
- */
-#define SSL_CERT_VALID 0
-#define SSL_CERT_NOT_VERIFIED 0xFFFFFFFF
-
-/* Variables for one common RNG for all SSL use */
-static mbedtls_ctr_drbg_context ctr_drbg;
-static mbedtls_entropy_context entropy;
-static int rng_seeded;
-
-/* Boolean functions to get informations about TLS/SSL connections */