feat(local): local-tun build on Windows

crates/shadowsocks-service/src/config.rs

@@ -68,7 +68,14 @@ use serde::{Deserialize, Serialize};
 use shadowsocks::relay::socks5::Address;
 use shadowsocks::{
     config::{
-        ManagerAddr, Mode, ReplayAttackPolicy, ServerAddr, ServerConfig, ServerUser, ServerUserManager, ServerWeight,
+        ManagerAddr,
+        Mode,
+        ReplayAttackPolicy,
+        ServerAddr,
+        ServerConfig,
+        ServerUser,
+        ServerUserManager,
+        ServerWeight,
     },
     crypto::CipherKind,
     plugin::PluginConfig,

crates/shadowsocks-service/src/local/mod.rs

@@ -371,9 +371,6 @@ impl Server {
                 }
                 #[cfg(feature = "local-tun")]
                 ProtocolType::Tun => {
-                    use log::info;
-                    use shadowsocks::net::UnixListener;
-
                     let mut builder = TunBuilder::new(context.clone(), balancer);
                     if let Some(address) = local_config.tun_interface_address {
                         builder.address(address);
@@ -397,6 +394,9 @@ impl Server {
                     } else if let Some(ref fd_path) = local_config.tun_device_fd_from_path {
                         use std::fs;
 
+                        use log::info;
+                        use shadowsocks::net::UnixListener;
+
                         let _ = fs::remove_file(fd_path);
 
                         let listener = match UnixListener::bind(fd_path) {

crates/shadowsocks-service/src/local/tun/sys/windows/mod.rs

@@ -1 +1,21 @@
+use std::{io, marker::Unpin};
 
+use tokio::io::{AsyncWrite, AsyncWriteExt};
+use tun::platform::Device as TunDevice;
+
+/// Packet Information length in bytes
+///
+/// Tun device on Windows (https://wintun.net) doesn't have Packet Information header, so there is no prefix headers
+pub const IFF_PI_PREFIX_LEN: usize = 0;
+
+/// Writing packet with packet information
+///
+/// Tun device on Windows (https://wintun.net) doesn't have Packet Information header, so there is nothing to prepend on Windows
+pub async fn write_packet_with_pi<W: AsyncWrite + Unpin>(writer: &mut W, packet: &[u8]) -> io::Result<()> {
+    writer.write_all(packet).await
+}
+
+/// Set platform specific route configuration
+pub async fn set_route_configuration(_device: &TunDevice) -> io::Result<()> {
+    Ok(())
+}

crates/shadowsocks/src/dns_resolver/hickory_dns_resolver.rs

@@ -20,7 +20,8 @@ use hickory_resolver::{
         udp::{DnsUdpSocket, QuicLocalAddr},
         TokioTime,
     },
-    AsyncResolver, TokioHandle,
+    AsyncResolver,
+    TokioHandle,
 };
 use log::trace;
 use tokio::{io::ReadBuf, net::UdpSocket};