Add fake tcp tunnel (experimental) (#1673)

support faketcp to avoid tcp-over-tcp problem.
linux/macos/windows are supported.

better to be used in internet env, the maximum 
performance is majorly limited by windivert/raw socket.

easytier/src/connector/mod.rs

@@ -12,8 +12,9 @@ use crate::tunnel::wireguard::{WgConfig, WgTunnelConnector};
 use crate::{
     common::{error::Error, global_ctx::ArcGlobalCtx, idn, network::IPCollector},
     tunnel::{
-        check_scheme_and_get_socket_addr, ring::RingTunnelConnector, tcp::TcpTunnelConnector,
-        udp::UdpTunnelConnector, IpVersion, TunnelConnector,
+        check_scheme_and_get_socket_addr, fake_tcp::FakeTcpTunnelConnector,
+        ring::RingTunnelConnector, tcp::TcpTunnelConnector, udp::UdpTunnelConnector, IpVersion,
+        TunnelConnector,
     },
 };
 
@@ -157,6 +158,20 @@ pub async fn create_connector_by_url(
             let connector = dns_connector::DNSTunnelConnector::new(url, global_ctx.clone());
             Box::new(connector)
         }
+        "faketcp" => {
+            let dst_addr =
+                check_scheme_and_get_socket_addr::<SocketAddr>(&url, "faketcp", ip_version).await?;
+            let mut connector = FakeTcpTunnelConnector::new(url);
+            if global_ctx.config.get_flags().bind_device {
+                set_bind_addr_for_peer_connector(
+                    &mut connector,
+                    dst_addr.is_ipv4(),
+                    &global_ctx.get_ip_collector(),
+                )
+                .await;
+            }
+            Box::new(connector)
+        }
         _ => {
             return Err(Error::InvalidUrl(url.into()));
         }