add complete support for freebsd (#275)

add tun & websocket & wireguard support on freebsd

easytier/src/common/ifcfg.rs

@@ -399,7 +399,7 @@ pub struct DummyIfConfiger {}
 #[async_trait]
 impl IfConfiguerTrait for DummyIfConfiger {}
 
-#[cfg(target_os = "macos")]
+#[cfg(any(target_os = "macos", target_os = "freebsd"))]
 pub type IfConfiger = MacIfConfiger;
 
 #[cfg(target_os = "linux")]
@@ -408,5 +408,10 @@ pub type IfConfiger = LinuxIfConfiger;
 #[cfg(target_os = "windows")]
 pub type IfConfiger = WindowsIfConfiger;
 
-#[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
+#[cfg(not(any(
+    target_os = "macos",
+    target_os = "linux",
+    target_os = "windows",
+    target_os = "freebsd"
+)))]
 pub type IfConfiger = DummyIfConfiger;

easytier/src/common/network.rs

@@ -60,7 +60,9 @@ impl InterfaceFilter {
 
 #[cfg(any(target_os = "macos", target_os = "freebsd"))]
 impl InterfaceFilter {
-    async fn is_interface_physical(interface_name: &str) -> bool {
+    #[cfg(target_os = "macos")]
+    async fn is_interface_physical(&self) -> bool {
+        let interface_name = &self.iface.name;
         let output = tokio::process::Command::new("networksetup")
             .args(&["-listallhardwareports"])
             .output()
@@ -87,11 +89,17 @@ impl InterfaceFilter {
         false
     }
 
+    #[cfg(target_os = "freebsd")]
+    async fn is_interface_physical(&self) -> bool {
+        // if mac addr is not zero, then it's physical interface
+        self.iface.mac.map(|mac| !mac.is_zero()).unwrap_or(false)
+    }
+
     async fn filter_iface(&self) -> bool {
         !self.iface.is_point_to_point()
             && !self.iface.is_loopback()
             && self.iface.is_up()
-            && Self::is_interface_physical(&self.iface.name).await
+            && self.is_interface_physical().await
     }
 }