tuntap.py 文件源码

def _bindSocket(self):
        """
        Open the tunnel.
        """
        log.msg(
            format="%(protocol)s starting on %(interface)s",
            protocol=self.protocol.__class__,
            interface=self.interface)
        try:
            fileno, interface = self._openTunnel(
                self.interface, self._mode | TunnelFlags.IFF_NO_PI)
        except (IOError, OSError) as e:
            raise error.CannotListenError(None, self.interface, e)

        self.interface = interface
        self._fileno = fileno

        self.connected = 1