From 8610234ee2ebc179ab9ea46e4ebf4a92c720c259 Mon Sep 17 00:00:00 2001
From: Luna Yao <40349250+ZnqbuZ@users.noreply.github.com>
Date: Mon, 6 Apr 2026 04:02:15 +0200
Subject: [PATCH] server: clean up on stop

server
---
 easytier/src/dns/server.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/easytier/src/dns/server.rs b/easytier/src/dns/server.rs
index 86db53d6..0771781f 100644
--- a/easytier/src/dns/server.rs
+++ b/easytier/src/dns/server.rs
@@ -273,6 +273,27 @@ impl DnsServer {
         );
 
         self.addresses.write().clear();
+        self.listeners.write().clear();
+
+        #[cfg(feature = "tun")]
+        if let Some(nic_ctx) = self
+            .nic_ctx
+            .lock()
+            .await
+            .as_ref()
+            .and_then(|nic_ctx| nic_ctx.downcast_ref::<NicCtx>())
+        {
+            if let Some(system) = nic_ctx
+                .ifname()
+                .await
+                .map(|ifname| system::get(&ifname).ok())
+                .flatten()
+                .flatten()
+            {
+                let _ = system.clean();
+            }
+        }
+
         if let Some(runtime) = runtime.take() {
             let _ = runtime.stop().await;
         }
@@ -283,6 +304,7 @@ impl Drop for DnsServer {
     fn drop(&mut self) {
         tracing::info!("DnsServer is dropped");
         self.addresses.write().clear();
+        self.listeners.write().clear();
     }
 }