1.更新对称NAT的打洞方式；2.支持windows服务；3.更新协议内容

switch-desktop/src/command/client.rs

@@ -0,0 +1,35 @@
+use std::io;
+use std::net::{Ipv4Addr, SocketAddr, SocketAddrV4, UdpSocket};
+use std::time::Duration;
+
+pub struct CommandClient {
+    udp: UdpSocket,
+}
+
+impl CommandClient {
+    pub fn new() -> io::Result<Self> {
+        let port = crate::config::read_command_port().unwrap();
+        let udp = UdpSocket::bind("127.0.0.1:0")?;
+        udp.set_read_timeout(Some(Duration::from_secs(5)))?;
+        udp.connect(SocketAddr::V4(SocketAddrV4::new(
+            Ipv4Addr::new(127, 0, 0, 1),
+            port,
+        )))?;
+        Ok(Self { udp })
+    }
+}
+
+impl CommandClient {
+    pub fn list(&self) -> io::Result<String> {
+        self.udp.send(b"list")?;
+        let mut buf = [0; 10240];
+        let len = self.udp.recv(&mut buf)?;
+        Ok(String::from_utf8(buf[..len].to_vec()).unwrap())
+    }
+    pub fn status(&self) -> io::Result<String> {
+        self.udp.send(b"status")?;
+        let mut buf = [0; 10240];
+        let len = self.udp.recv(&mut buf)?;
+        Ok(String::from_utf8(buf[..len].to_vec()).unwrap())
+    }
+}