sample_router.py 文件源码

def _arp_loop(self):
        try:
            with contextlib.closing(
                socket.socket(
                    socket.AF_PACKET, socket.SOCK_RAW,
                    socket.htons(ether.ETH_TYPE_ARP))) as packet_socket:
                packet_socket.bind((self.interface.device_name,
                                    socket.htons(ether.ETH_TYPE_ARP),
                                    socket.PACKET_BROADCAST,
                                    arp.ARP_HW_TYPE_ETHERNET,
                                    mac_lib.BROADCAST))
                self._arp_loop_socket(packet_socket)
        except greenlet.GreenletExit:
            # suppress thread.kill exception
            pass