pub fn build_auth_tls_probe(xid: u32) -> Vec<u8> ⓘExpand description
Build an AUTH_TLS probe (RFC 9289 S4.1) to detect RPC-over-TLS support.
Identical to build_null_call except the credential flavor is
AUTH_TLS (7) instead of AUTH_NONE (0). The verifier remains
AUTH_NONE. If the server supports TLS it replies with a verifier
body of b"STARTTLS".