fix: filter overlapped proxy cidrs in ProxyCidrsMonitor (#2079)

* feat(route): add async methods to list proxy CIDRs for IPv4 and IPv6
* refactor(ProxyCidrsMonitor): get proxy cidrs from list_proxy_cidrs

easytier/src/instance/proxy_cidrs_monitor.rs

@@ -32,35 +32,27 @@ impl ProxyCidrsMonitor {
         Vec<cidr::Ipv4Cidr>,
         Vec<cidr::Ipv4Cidr>,
     ) {
-        // Collect proxy_cidrs from routes
-        let mut proxy_cidrs = BTreeSet::new();
-        let routes = peer_mgr.list_routes().await;
-        for r in routes {
-            for cidr in r.proxy_cidrs {
-                let Ok(cidr) = cidr.parse::<cidr::Ipv4Cidr>() else {
-                    continue;
-                };
-                proxy_cidrs.insert(cidr);
+        let proxy_cidrs = if let Some(routes) = global_ctx.config.get_routes() {
+            // If manual routes exist, override entire proxy_cidrs
+            routes.into_iter().collect()
+        } else {
+            // Collect proxy_cidrs from routes
+            let mut proxy_cidrs = peer_mgr.list_proxy_cidrs().await;
+
+            // Add VPN portal cidr to proxy_cidrs
+            if let Some(vpn_cfg) = global_ctx.config.get_vpn_portal_config() {
+                proxy_cidrs.insert(vpn_cfg.client_cidr);
             }
-        }
 
-        // Add VPN portal cidr to proxy_cidrs
-        if let Some(vpn_cfg) = global_ctx.config.get_vpn_portal_config() {
-            proxy_cidrs.insert(vpn_cfg.client_cidr);
-        }
-
-        // If has manual routes, override entire proxy_cidrs
-        if let Some(routes) = global_ctx.config.get_routes() {
-            proxy_cidrs = routes.into_iter().collect();
-        }
+            proxy_cidrs
+        };
 
         // Calculate diff
         if cur_proxy_cidrs == &proxy_cidrs {
             return (proxy_cidrs, Vec::new(), Vec::new());
         }
-        let added: Vec<cidr::Ipv4Cidr> = proxy_cidrs.difference(cur_proxy_cidrs).cloned().collect();
-        let removed: Vec<cidr::Ipv4Cidr> =
-            cur_proxy_cidrs.difference(&proxy_cidrs).cloned().collect();
+        let added = proxy_cidrs.difference(cur_proxy_cidrs).cloned().collect();
+        let removed = cur_proxy_cidrs.difference(&proxy_cidrs).cloned().collect();
 
         (proxy_cidrs, added, removed)
     }

easytier/src/peers/peer_manager.rs

@@ -1,3 +1,8 @@
+use anyhow::Context;
+use async_trait::async_trait;
+use cidr::{Ipv4Cidr, Ipv6Cidr};
+use dashmap::DashMap;
+use std::collections::BTreeSet;
 use std::{
     fmt::Debug,
     net::{IpAddr, Ipv4Addr, Ipv6Addr},
@@ -5,11 +10,6 @@ use std::{
     time::{Duration, Instant, SystemTime},
 };
 
-use anyhow::Context;
-use async_trait::async_trait;
-
-use dashmap::DashMap;
-
 use tokio::{
     sync::{
         Mutex, RwLock,
@@ -1254,6 +1254,14 @@ impl PeerManager {
         self.get_route().get_peer_info_last_update_time().await
     }
 
+    pub async fn list_proxy_cidrs(&self) -> BTreeSet<Ipv4Cidr> {
+        self.get_route().list_proxy_cidrs().await
+    }
+
+    pub async fn list_proxy_cidrs_v6(&self) -> BTreeSet<Ipv6Cidr> {
+        self.get_route().list_proxy_cidrs_v6().await
+    }
+
     pub async fn dump_route(&self) -> String {
         self.get_route().dump().await
     }
@@ -1985,7 +1993,6 @@ impl PeerManager {
 
 #[cfg(test)]
 mod tests {
-
     use std::{
         fmt::Debug,
         sync::Arc,

easytier/src/peers/peer_ospf_route.rs

@@ -3500,6 +3500,26 @@ impl Route for PeerRoute {
         routes
     }
 
+    async fn list_proxy_cidrs(&self) -> BTreeSet<Ipv4Cidr> {
+        self.service_impl
+            .route_table
+            .cidr_peer_id_map
+            .load()
+            .iter()
+            .map(|(cidr, _)| *cidr)
+            .collect()
+    }
+
+    async fn list_proxy_cidrs_v6(&self) -> BTreeSet<Ipv6Cidr> {
+        self.service_impl
+            .route_table
+            .cidr_v6_peer_id_map
+            .load()
+            .iter()
+            .map(|(cidr, _)| *cidr)
+            .collect()
+    }
+
     async fn get_peer_id_by_ipv4(&self, ipv4_addr: &Ipv4Addr) -> Option<PeerId> {
         let route_table = &self.service_impl.route_table;
         if let Some(p) = route_table.ipv4_peer_id_map.get(ipv4_addr) {

easytier/src/peers/route_trait.rs

@@ -1,10 +1,11 @@
+use cidr::{Ipv4Cidr, Ipv6Cidr};
+use dashmap::DashMap;
 use std::{
+    collections::BTreeSet,
     net::{Ipv4Addr, Ipv6Addr},
     sync::Arc,
 };
 
-use dashmap::DashMap;
-
 use crate::{
     common::{PeerId, global_ctx::NetworkIdentity},
     proto::peer_rpc::{
@@ -86,6 +87,12 @@ pub trait Route {
 
     async fn list_routes(&self) -> Vec<crate::proto::api::instance::Route>;
 
+    // TODO: rewrite route management, remove this
+    async fn list_proxy_cidrs(&self) -> BTreeSet<Ipv4Cidr>;
+
+    // TODO: rewrite route management, remove this
+    async fn list_proxy_cidrs_v6(&self) -> BTreeSet<Ipv6Cidr>;
+
     async fn get_peer_id_by_ipv4(&self, _ipv4: &Ipv4Addr) -> Option<PeerId> {
         None
     }
@@ -175,6 +182,16 @@ impl Route for MockRoute {
         panic!("mock route")
     }
 
+    // TODO: rewrite route management, remove this
+    async fn list_proxy_cidrs(&self) -> BTreeSet<Ipv4Cidr> {
+        unimplemented!()
+    }
+
+    // TODO: rewrite route management, remove this
+    async fn list_proxy_cidrs_v6(&self) -> BTreeSet<Ipv6Cidr> {
+        unimplemented!()
+    }
+
     async fn get_peer_info(&self, _peer_id: PeerId) -> Option<RoutePeerInfo> {
         panic!("mock route")
     }