Ignore system bind error

Author: nekohasekai

stack.go

@@ -25,7 +25,7 @@ type StackOptions struct {
 	Router                 Router
 	Handler                Handler
 	Logger                 logger.Logger
-	UnderPlatform          bool
+	ForwarderBindInterface bool
 }
 
 func NewStack(

system.go

@@ -40,7 +40,7 @@ type System struct {
 	tcpNat             *TCPNat
 	udpNat             *udpnat.Service[netip.AddrPort]
 	routeMapping       *RouteMapping
-	underPlatform      bool
+	bindInterface      bool
 }
 
 type Session struct {
@@ -62,7 +62,7 @@ func NewSystem(options StackOptions) (Stack, error) {
 		logger:        options.Logger,
 		inet4Prefixes: options.Inet4Address,
 		inet6Prefixes: options.Inet6Address,
-		underPlatform: options.UnderPlatform,
+		bindInterface: options.ForwarderBindInterface,
 	}
 	if stack.router != nil {
 		stack.routeMapping = NewRouteMapping(options.UDPTimeout)
@@ -96,8 +96,14 @@ func (s *System) Close() error {
 
 func (s *System) Start() error {
 	var listener net.ListenConfig
-	if s.underPlatform {
-		listener.Control = control.Append(listener.Control, control.BindToInterface(control.DefaultInterfaceFinder(), s.tunName, -1))
+	if s.bindInterface {
+		listener.Control = control.Append(listener.Control, func(network, address string, conn syscall.RawConn) error {
+			err := control.BindToInterface(nil, s.tunName, -1)(network, address, conn)
+			if err != nil {
+				s.logger.Warn("bind forwarder to interface: ", err)
+			}
+			return nil
+		})
 	}
 	if s.inet4Address.IsValid() {
 		tcpListener, err := listener.Listen(s.ctx, "tcp4", net.JoinHostPort(s.inet4ServerAddress.String(), "0"))