diff --git a/listener/sing_tun/server.go b/listener/sing_tun/server.go index 5c387a8d30..8e0a6c3445 100644 --- a/listener/sing_tun/server.go +++ b/listener/sing_tun/server.go @@ -67,6 +67,26 @@ func CalculateInterfaceName(name string) (tunName string) { return } +func checkTunName(tunName string) (ok bool) { + defer func() { + if !ok { + log.Warnln("[TUN] Unsupported tunName(%s) in %s, force regenerate by ourselves.", tunName, runtime.GOOS) + } + }() + if runtime.GOOS == "darwin" { + if len(tunName) <= 4 { + return false + } + if tunName[:4] == "utun" { + return false + } + if _, parseErr := strconv.ParseInt(tunName[4:], 10, 16); parseErr != nil { + return false + } + } + return true +} + func New(options LC.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- C.PacketAdapter, additions ...inbound.Addition) (l *Listener, err error) { if len(additions) == 0 { additions = []inbound.Addition{ @@ -75,7 +95,7 @@ func New(options LC.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- C.PacketAdapte } } tunName := options.Device - if tunName == "" { + if tunName == "" || !checkTunName(tunName) { tunName = CalculateInterfaceName(InterfaceName) options.Device = tunName }