Hardened KDF-Tuple + NAT Probing + Paddings

Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>

src/transport/middle_proxy/pool.rs

@@ -336,6 +336,8 @@ pub(super) struct NatRuntimeCore {
     pub(super) nat_probe: bool,
     pub(super) nat_stun: Option<String>,
     pub(super) nat_stun_servers: Vec<String>,
+    pub(super) stun_tcp_fallback: bool,
+    pub(super) http_ip_detect_urls: Vec<String>,
     pub(super) nat_stun_live_servers: Arc<RwLock<Vec<String>>>,
     pub(super) nat_probe_concurrency: usize,
     pub(super) detected_ipv6: Option<Ipv6Addr>,
@@ -484,6 +486,8 @@ impl MePool {
         nat_probe: bool,
         nat_stun: Option<String>,
         nat_stun_servers: Vec<String>,
+        stun_tcp_fallback: bool,
+        http_ip_detect_urls: Vec<String>,
         nat_probe_concurrency: usize,
         detected_ipv6: Option<Ipv6Addr>,
         me_one_retry: u8,
@@ -706,6 +710,8 @@ impl MePool {
                 nat_probe,
                 nat_stun,
                 nat_stun_servers,
+                stun_tcp_fallback,
+                http_ip_detect_urls,
                 nat_stun_live_servers: Arc::new(RwLock::new(Vec::new())),
                 nat_probe_concurrency: nat_probe_concurrency.max(1),
                 detected_ipv6,