auto add dns according this method https://github.com/zzzgydi/clash-verge/issues/82#issuecomment-1328742285

src-tauri/src/config/clash.rs

@@ -124,6 +124,26 @@ impl IClashTemp {
             Err(_) => "127.0.0.1:9090".into(),
         }
     }
+
+    pub fn get_tun_device_ip(&self) -> String {
+        let config = &self.0;
+
+        let ip = config
+            .get("dns")
+            .and_then(|value| match value {
+                Value::Mapping(val_map) => Some(val_map.get("fake-ip-range").and_then(
+                    |fake_ip_range| match fake_ip_range {
+                        Value::String(ip_range_val) => Some(ip_range_val.replace("1/16", "2")),
+                        _ => None,
+                    },
+                )),
+                _ => None,
+            })
+            // 默认IP
+            .unwrap_or(Some("198.18.0.2".to_string()));
+
+        ip.unwrap()
+    }
 }
 
 #[derive(Default, Debug, Clone, Deserialize, Serialize, PartialEq, Eq)]

src-tauri/src/core/core.rs

@@ -104,7 +104,31 @@ impl CoreManager {
         if should_kill {
             sleep(Duration::from_millis(500)).await;
         }
+        #[cfg(target_os = "macos")]
+        {
+            let enable_tun = Config::verge().latest().enable_tun_mode.clone();
+            let enable_tun = enable_tun.unwrap_or(false);
 
+            if enable_tun {
+                log::debug!(target: "app", "try to set system dns");
+
+                match (|| async {
+                    let tun_device_ip = Config::clash().clone().latest().get_tun_device_ip();
+                    // 执行 networksetup -setdnsservers Wi-Fi $tun_device_ip
+                    Command::new("networksetup")
+                        .args(["-setdnsservers", "Wi-Fi", tun_device_ip.as_str()])
+                        .output()
+                })()
+                .await
+                {
+                    Ok(_) => return Ok(()),
+                    Err(err) => {
+                        // 修改这个值，免得stop出错
+                        log::error!(target: "app", "{err}");
+                    }
+                }
+            }
+        }
         #[cfg(target_os = "windows")]
         {
             use super::win_service;
@@ -145,7 +169,7 @@ impl CoreManager {
         let config_path = dirs::path_to_str(&config_path)?;
 
         // fix #212
-        let args = match clash_core.as_str() {
+        let args: Vec<&str> = match clash_core.as_str() {
             "clash-meta" => vec!["-m", "-d", app_dir, "-f", config_path],
             _ => vec!["-d", app_dir, "-f", config_path],
         };
@@ -247,6 +271,29 @@ impl CoreManager {
             return Ok(());
         }
 
+        #[cfg(target_os = "macos")]
+        {
+            let enable_tun = Config::verge().latest().enable_tun_mode.clone();
+            let enable_tun = enable_tun.unwrap_or(false);
+
+            if enable_tun {
+                log::debug!(target: "app", "try to set system dns");
+
+                match (|| {
+                    // 执行 networksetup -setdnsservers Wi-Fi "Empty"
+                    Command::new("networksetup")
+                        .args(["-setdnsservers", "Wi-Fi", "Empty"])
+                        .output()
+                })() {
+                    Ok(_) => return Ok(()),
+                    Err(err) => {
+                        // 修改这个值，免得stop出错
+                        *self.use_service_mode.lock() = false;
+                        log::error!(target: "app", "{err}");
+                    }
+                }
+            }
+        }
         let mut sidecar = self.sidecar.lock();
         if let Some(child) = sidecar.take() {
             log::debug!(target: "app", "stop the core by sidecar");