From 86871b14d5e8701c1ffcfe0a7c82487180f244a6 Mon Sep 17 00:00:00 2001
From: Luna Yao <40349250+ZnqbuZ@users.noreply.github.com>
Date: Mon, 23 Feb 2026 03:29:00 +0100
Subject: [PATCH] store DnsServer in GlobalCtx, load routes from DnsServer in
 ProxyCidrsMonitor

---
 easytier/src/common/global_ctx.rs            | 14 ++++++++++++++
 easytier/src/dns/mod.rs                      |  2 +-
 easytier/src/dns/node.rs                     |  4 ++++
 easytier/src/dns/server.rs                   |  4 ++--
 easytier/src/instance/proxy_cidrs_monitor.rs |  8 ++++++++
 5 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/easytier/src/common/global_ctx.rs b/easytier/src/common/global_ctx.rs
index 1cc589af..25e127bd 100644
--- a/easytier/src/common/global_ctx.rs
+++ b/easytier/src/common/global_ctx.rs
@@ -32,7 +32,9 @@ use crate::{
 };
 use crossbeam::atomic::AtomicCell;
 use hmac::{Hmac, Mac};
+use parking_lot::RwLock;
 use sha2::Sha256;
+use crate::dns::server::DnsServer;
 use socket2::Protocol;
 
 pub type NetworkIdentity = crate::common::config::NetworkIdentity;
@@ -202,6 +204,8 @@ pub struct GlobalCtx {
 
     hostname: Mutex<String>,
 
+    dns: RwLock<Option<Arc<DnsServer>>>,
+
     stun_info_collection: Mutex<Arc<dyn StunInfoCollectorTrait>>,
 
     running_listeners: Mutex<Vec<url::Url>>,
@@ -298,6 +302,8 @@ impl GlobalCtx {
                 stun_info_collector.clone(),
             )))),
 
+            dns: RwLock::new(None),
+
             hostname: Mutex::new(hostname),
 
             stun_info_collection: Mutex::new(stun_info_collector),
@@ -416,6 +422,14 @@ impl GlobalCtx {
         self.ip_collector.lock().unwrap().as_ref().unwrap().clone()
     }
 
+    pub fn get_dns(&self) -> Option<Arc<DnsServer>> {
+        self.dns.read().clone()
+    }
+
+    pub fn set_dns(&self, dns: Option<Arc<DnsServer>>) {
+        *self.dns.write() = dns;
+    }
+
     pub fn get_hostname(&self) -> String {
         return self.hostname.lock().unwrap().clone();
     }
diff --git a/easytier/src/dns/mod.rs b/easytier/src/dns/mod.rs
index e615c15e..29eb0710 100644
--- a/easytier/src/dns/mod.rs
+++ b/easytier/src/dns/mod.rs
@@ -2,6 +2,6 @@ mod node;
 mod node_mgr;
 pub mod config;
 mod peer_mgr;
-mod server;
+pub mod server;
 mod utils;
 pub mod zone;
diff --git a/easytier/src/dns/node.rs b/easytier/src/dns/node.rs
index 583bc357..7c8e3728 100644
--- a/easytier/src/dns/node.rs
+++ b/easytier/src/dns/node.rs
@@ -68,12 +68,16 @@ impl DnsNode {
 
             let server = Arc::new(DnsServer::new(self.peer_mgr.clone(), rpc));
 
+            self.peer_mgr
+                .get_global_ctx_ref()
+                .set_dns(Some(server.clone()));
             tokio::join!(
                 self.peer_mgr
                     .add_nic_packet_process_pipeline(Box::new(server.clone())),
                 server.run()
             );
 
+            self.peer_mgr.get_global_ctx_ref().set_dns(None);
             let _ = self
                 .peer_mgr
                 .remove_nic_packet_process_pipeline(server.id())
diff --git a/easytier/src/dns/server.rs b/easytier/src/dns/server.rs
index 8f17cac3..2f9ebbc9 100644
--- a/easytier/src/dns/server.rs
+++ b/easytier/src/dns/server.rs
@@ -177,8 +177,8 @@ impl DnsServer {
         }
     }
 
-    pub fn routes(&self) -> HashSet<IpAddr> {
-        self.addresses.read().iter().map(|a| a.addr.ip()).collect()
+    pub fn addresses(&self) -> HashSet<SocketAddr> {
+        self.addresses.read().iter().map(|a| a.addr).collect()
     }
 
     async fn reload_listeners(
diff --git a/easytier/src/instance/proxy_cidrs_monitor.rs b/easytier/src/instance/proxy_cidrs_monitor.rs
index 2e03c138..9bc9f7bc 100644
--- a/easytier/src/instance/proxy_cidrs_monitor.rs
+++ b/easytier/src/instance/proxy_cidrs_monitor.rs
@@ -1,4 +1,5 @@
 use std::collections::BTreeSet;
+use std::net::IpAddr;
 use std::sync::{Arc, Weak};
 use std::time::Instant;
 
@@ -54,6 +55,13 @@ impl ProxyCidrsMonitor {
             proxy_cidrs = routes.into_iter().collect();
         }
 
+        if let Some(dns) = global_ctx.get_dns() {
+            proxy_cidrs.extend(dns.addresses().into_iter().filter_map(|a| match a.ip() {
+                IpAddr::V4(ip) => Some(cidr::Ipv4Cidr::new_host(ip)),
+                _ => None,
+            }))
+        }
+
         // Calculate diff
         if cur_proxy_cidrs == &proxy_cidrs {
             return (proxy_cidrs, Vec::new(), Vec::new());