fix: register PeerCenterRpc in management API server so CLI peer-center works (#1929)

PeerCenterRpc was only registered in the per-instance peer-to-peer RPC
manager (domain = network_name), but not in the management API server
(domain = ""). The CLI connects to the management API with an empty
domain, causing "Invalid service name: PeerCenterRpc" errors.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

easytier/src/connector/udp_hole_punch/sym_to_cone.rs

@@ -616,7 +616,7 @@ pub mod tests {
                     .await
                     .is_ok()
             },
-            Duration::from_secs(10),
+            Duration::from_secs(30),
         )
         .await;
         println!("{:?}", p_a.list_routes().await);

easytier/src/instance/instance.rs

@@ -34,7 +34,7 @@ use crate::gateway::kcp_proxy::{KcpProxyDst, KcpProxyDstRpcService, KcpProxySrc}
 use crate::gateway::quic_proxy::{QuicProxy, QuicProxyDstRpcService};
 use crate::gateway::tcp_proxy::{NatDstTcpConnector, TcpProxy, TcpProxyRpcService};
 use crate::gateway::udp_proxy::UdpProxy;
-use crate::peer_center::instance::PeerCenterInstance;
+use crate::peer_center::instance::{PeerCenterInstance, PeerCenterInstanceService};
 use crate::peers::peer_conn::PeerConnId;
 use crate::peers::peer_manager::{PeerManager, RouteAlgoType};
 #[cfg(feature = "tun")]
@@ -54,6 +54,7 @@ use crate::proto::api::instance::{
 };
 use crate::proto::api::manage::NetworkConfig;
 use crate::proto::common::{PortForwardConfigPb, TunnelInfo};
+use crate::proto::peer_rpc::PeerCenterRpc;
 use crate::proto::rpc_impl::standalone::RpcServerHook;
 use crate::proto::rpc_types;
 use crate::proto::rpc_types::controller::BaseController;
@@ -1311,6 +1312,7 @@ impl Instance {
             port_forward_manage_rpc_service: F,
             stats_rpc_service: G,
             config_rpc_service: H,
+            peer_center_rpc_service: Arc<PeerCenterInstanceService>,
         }
 
         #[async_trait::async_trait]
@@ -1372,6 +1374,12 @@ impl Instance {
             fn get_config_service(&self) -> &dyn ConfigRpc<Controller = BaseController> {
                 &self.config_rpc_service
             }
+
+            fn get_peer_center_service(
+                &self,
+            ) -> Arc<dyn PeerCenterRpc<Controller = BaseController> + Send + Sync> {
+                self.peer_center_rpc_service.clone()
+            }
         }
 
         ApiRpcServiceImpl {
@@ -1432,6 +1440,7 @@ impl Instance {
             port_forward_manage_rpc_service: self.get_port_forward_manager_rpc_service(),
             stats_rpc_service: self.get_stats_rpc_service(),
             config_rpc_service: self.get_config_service(),
+            peer_center_rpc_service: Arc::new(self.peer_center.get_rpc_service()),
         }
     }
 

easytier/src/rpc_service/api.rs

@@ -17,6 +17,7 @@ use crate::{
             logger::LoggerRpcServer,
             manage::WebClientServiceServer,
         },
+        peer_rpc::PeerCenterRpcServer,
         rpc_impl::{service_registry::ServiceRegistry, standalone::StandAloneServer},
         rpc_types::error::Error,
     },
@@ -24,8 +25,9 @@ use crate::{
         acl_manage::AclManageRpcService, config::ConfigRpcService,
         connector_manage::ConnectorManageRpcService, instance_manage::InstanceManageRpcService,
         logger::LoggerRpcService, mapped_listener_manage::MappedListenerManageRpcService,
-        peer_manage::PeerManageRpcService, port_forward_manage::PortForwardManageRpcService,
-        proxy::TcpProxyRpcService, stats::StatsRpcService, vpn_portal::VpnPortalRpcService,
+        peer_center::PeerCenterManageRpcService, peer_manage::PeerManageRpcService,
+        port_forward_manage::PortForwardManageRpcService, proxy::TcpProxyRpcService,
+        stats::StatsRpcService, vpn_portal::VpnPortalRpcService,
     },
     tunnel::{tcp::TcpTunnelListener, TunnelListener},
     web_client::DefaultHooks,
@@ -149,6 +151,11 @@ fn register_api_rpc_service(
         )),
         "",
     );
+
+    registry.register(
+        PeerCenterRpcServer::new(PeerCenterManageRpcService::new(instance_manager.clone())),
+        "",
+    );
 }
 
 fn parse_rpc_portal(rpc_portal: Option<String>) -> anyhow::Result<SocketAddr> {

easytier/src/rpc_service/mod.rs

@@ -3,6 +3,7 @@ mod api;
 mod config;
 mod connector_manage;
 mod mapped_listener_manage;
+mod peer_center;
 mod peer_manage;
 mod port_forward_manage;
 mod proxy;
@@ -67,6 +68,14 @@ pub trait InstanceRpcService: Sync + Send {
     ) -> &dyn crate::proto::api::config::ConfigRpc<
         Controller = crate::proto::rpc_types::controller::BaseController,
     >;
+    fn get_peer_center_service(
+        &self,
+    ) -> std::sync::Arc<
+        dyn crate::proto::peer_rpc::PeerCenterRpc<
+                Controller = crate::proto::rpc_types::controller::BaseController,
+            > + Send
+            + Sync,
+    >;
 }
 
 fn get_instance_service(

easytier/src/rpc_service/peer_center.rs

@@ -0,0 +1,108 @@
+use std::sync::Arc;
+
+use crate::{
+    instance_manager::NetworkInstanceManager,
+    proto::{
+        peer_rpc::{
+            GetGlobalPeerMapRequest, GetGlobalPeerMapResponse, PeerCenterRpc, ReportPeersRequest,
+            ReportPeersResponse,
+        },
+        rpc_types::controller::BaseController,
+    },
+};
+
+#[derive(Clone)]
+pub struct PeerCenterManageRpcService {
+    instance_manager: Arc<NetworkInstanceManager>,
+}
+
+impl PeerCenterManageRpcService {
+    pub fn new(instance_manager: Arc<NetworkInstanceManager>) -> Self {
+        Self { instance_manager }
+    }
+}
+
+#[async_trait::async_trait]
+impl PeerCenterRpc for PeerCenterManageRpcService {
+    type Controller = BaseController;
+
+    async fn get_global_peer_map(
+        &self,
+        ctrl: BaseController,
+        req: GetGlobalPeerMapRequest,
+    ) -> crate::proto::rpc_types::error::Result<GetGlobalPeerMapResponse> {
+        let instance_service =
+            super::get_instance_service(&self.instance_manager, &None).map_err(|e| {
+                let msg = e.to_string();
+                if msg.contains("please specify the instance ID") {
+                    anyhow::anyhow!(
+                        "PeerCenter management RPC cannot select an instance automatically \
+                         when multiple instances are running; please use an API that allows \
+                         specifying an instance identifier."
+                    )
+                } else {
+                    e
+                }
+            })?;
+
+        instance_service
+            .get_peer_center_service()
+            .get_global_peer_map(ctrl, req)
+            .await
+    }
+
+    async fn report_peers(
+        &self,
+        _: BaseController,
+        _: ReportPeersRequest,
+    ) -> crate::proto::rpc_types::error::Result<ReportPeersResponse> {
+        Err(anyhow::anyhow!("not implemented for management API").into())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::{
+        instance_manager::NetworkInstanceManager,
+        proto::{
+            peer_rpc::{GetGlobalPeerMapRequest, ReportPeersRequest},
+            rpc_types::controller::BaseController,
+        },
+    };
+
+    fn make_service() -> PeerCenterManageRpcService {
+        PeerCenterManageRpcService::new(Arc::new(NetworkInstanceManager::new()))
+    }
+
+    #[tokio::test]
+    async fn get_global_peer_map_errors_when_no_instance() {
+        let svc = make_service();
+        let result = svc
+            .get_global_peer_map(
+                BaseController::default(),
+                GetGlobalPeerMapRequest::default(),
+            )
+            .await;
+        assert!(result.is_err());
+        let msg = result.unwrap_err().to_string();
+        assert!(
+            msg.contains("No instance matches the selector"),
+            "unexpected error: {msg}"
+        );
+    }
+
+    #[tokio::test]
+    async fn report_peers_always_returns_error() {
+        let svc = make_service();
+        let result = svc
+            .report_peers(BaseController::default(), ReportPeersRequest::default())
+            .await;
+        assert!(result.is_err());
+        let msg = result.unwrap_err().to_string();
+        assert!(
+            msg.contains("not implemented for management API"),
+            "unexpected error: {msg}"
+        );
+    }
+}