fix: multi issues - TUN read loop, SDWAN routing for TenantID=0, WS keepalive 10s

internal/server/coordinator.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"time"
 
+	"github.com/openp2p-cn/inp2p/pkg/auth"
 	"github.com/openp2p-cn/inp2p/pkg/protocol"
 )
 
@@ -17,12 +18,12 @@ import (
 
 // HandleConnectReq processes a connection request from node A to node B.
 func (s *Server) HandleConnectReq(from *NodeInfo, req protocol.ConnectReq) error {
-	to := s.GetNode(req.To)
+	to := s.GetNodeForUser(req.To, from.Token)
 	if to == nil || !to.IsOnline() {
-		// Peer offline — respond with error
+		// Peer offline or not visible — respond with generic not found
 		from.Conn.Write(protocol.MsgPush, protocol.SubPushConnectRsp, protocol.ConnectRsp{
 			Error:  1,
-			Detail: fmt.Sprintf("node %s offline", req.To),
+			Detail: "node not found",
 			From:   req.To,
 			To:     req.From,
 		})
@@ -38,6 +39,7 @@ func (s *Server) HandleConnectReq(from *NodeInfo, req protocol.ConnectReq) error
 		Port:    from.PublicPort,
 		NATType: from.NATType,
 		HasIPv4: from.HasIPv4,
+		Token:   auth.GenTOTP(from.Token, time.Now().Unix()),
 	}
 	from.mu.RUnlock()
 
@@ -47,6 +49,7 @@ func (s *Server) HandleConnectReq(from *NodeInfo, req protocol.ConnectReq) error
 		Port:    to.PublicPort,
 		NATType: to.NATType,
 		HasIPv4: to.HasIPv4,
+		Token:   auth.GenTOTP(to.Token, time.Now().Unix()),
 	}
 	to.mu.RUnlock()