按照WOL協議規定,在電腦處於關機而網卡供電狀態下,從網絡上接收到WOL魔法包後會自動加電開機。這種方式能夠很方便的使用在需要進行遠程管理的環境中。此程序實現了網絡喚醒的魔法數據包發送功能,可以實現遠程開機。
假設需要被喚醒PC網卡MAC地址爲:01:02:03:04:05:06 則WOL魔法包結構如下:
FF FF FF FF FF FF | 01 02 03 04 05 06 ...重複16次... 01 02 03 04 05 06 | 00 00 00 00 00 00
前段的6字節0xff 和尾部的 6字節0x00 無需變化照抄即可,數據包總長度:108 字節
通過把以上數據包發送到本地子網的廣播地址(代碼中爲:192.168.1.255)的UDP端口9即可喚醒該PC
注意:此代碼需要python解釋器運行,Windows/Linux/Mac OS 通用
使用方法:
1. 保存以下代碼到 wol.py
#!/usr/bin/env python #coding=utf-8 import socket, sys import struct def to_hex_int(s): return int(s.upper(), 16) dest = ('192.168.1.255', 9) if len(sys.argv) < 2: print("usage: %s <MAC Address to wakeup>" % sys.argv[0]) sys.exit() mac = sys.argv[1] spliter = "" if mac.count(":") == 5: spliter = ":" if mac.count("-") == 5: spliter = "-" if spliter == "": print("MAC address should be like XX:XX:XX:XX:XX:XX / XX-XX-XX-XX-XX-XX") sys.exit() parts = mac.split(spliter) a1 = to_hex_int(parts[0]) a2 = to_hex_int(parts[1]) a3 = to_hex_int(parts[2]) a4 = to_hex_int(parts[3]) a5 = to_hex_int(parts[4]) a6 = to_hex_int(parts[5]) addr = [a1, a2, a3, a4, a5, a6] packet = chr(255) + chr(255) + chr(255) + chr(255) + chr(255) + chr(255) for n in range(0,16): for a in addr: packet = packet + chr(a) packet = packet + chr(0) + chr(0) + chr(0) + chr(0) + chr(0) + chr(0) s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.setsockopt(socket.SOL_SOCKET,socket.SO_BROADCAST,1) s.sendto(packet,dest) print("WOL packet %d bytes sent !" % len(packet))
2. 使用方法爲命令行下執行(linux/Mac可以不需要寫命令最開始的python):
python ./wol.py 01:02:03:04:05:06