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ÔÚ Linux ²Ù×÷ϵͳÖУ¬linkwatch Àú³ÌÊÇÒ»¸öÌØÊâµÄÊØ»¤Àú³Ì£¬ÆäÖ÷Òª×÷ÓÃÊǼà¿ØÍøÂç½Ó¿ÚµÄ״̬ת±ä£¬ÈçÍøÂçÅþÁ¬µÄ½¨ÉèºÍ¶Ï¿ª¡£linkwatch Àú³Ìͨ¹ý¼àÌý Linux ÄÚºËÖÐµÄ NETLINK_ROUTE Ì×½Ó×Ö£¬ÊµÊ±»ñÈ¡ÍøÂç½Ó¿ÚµÄ״̬ÐÅÏ¢£¬²¢×ö³öÏìÓ¦µÄ´¦Àí¡£

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linkwatch Àú³Ìͨ¹ý NETLINK_ROUTE Ì×½Ó×Ö¶©ÔĶÔÍøÂç½Ó¿Ú״̬ת±äµÄ֪ͨÐÂÎÅ¡£

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linkwatch Àú³Ìƾ֤ÎüÊÕµ½µÄÐÂÎÅÄÚÈÝ£¬ÅжÏÊÇÍøÂç½Ó¿ÚµÄÅþÁ¬½¨ÉèÕվɶϿª£¬²¢¾ÙÐÐÏìÓ¦µÄ²Ù×÷£¬Èç¸üзÓÉ±í¡¢Í¨ÖªÆäËûÀú³ÌµÈ¡£

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linkwatch Àú³ÌµÄ¹¦Ð§Ö÷ÒªÌåÏÖÔÚÒÔϼ¸¸ö·½Ã棺

ʵʱ¼à¿ØÍøÂç½Ó¿Ú״̬£ºlinkwatch Àú³Ì¿ÉÒÔʵʱ¸ÐÖªµ½ÍøÂçÅþÁ¬µÄת±ä£¬°ü¹ÜϵͳÔÚÍøÂç״̬±¬·¢×ª±äʱÄܹ»×ö³öÏìÓ¦¡£

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ÒÔÏÂΪһ¸ö¼òÆ Python ´úÂëʾÀý£¬Ä£Äâ linkwatch Àú³ÌÎüÊÕµ½ÍøÂç½Ó¿Ú״̬ת±äµÄ֪ͨÐÂÎŲ¢¾ÙÐд¦Àí£º

import socket
import struct

def receive_linkwatch_notification():
    linkwatch_socket = socket.socket(socket.AF_NETLINK, socket.SOCK_RAW, socket.NETLINK_ROUTE)
    linkwatch_socket.bind((0, 0))

    while True:
        data = linkwatch_socket.recv(65535)
        msg_type, msg_len, flags, seq, pid = struct.unpack("=IHHII", data[:16])

        if msg_type == 16:  # RTM_NEWLINK or RTM_DELLINK
            print("Received link status change notification.")
            # Handle the link status change here...

if __name__ == "__main__":
    receive_linkwatch_notification()

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