什么是远程唤醒
简单的说就是可以在其它电脑上启动另外一台电脑
tomato的介绍
在tomato路由系统中有一个远程唤醒计算机的功能，但是在外网我们可能不想登陆路由设置界面，会带来一些安全隐患。如果改用ssh登陆路由操作会比较安全一些。我开始在路由系统中找了一番没有找到相关的文件，通过路由web界面看是提交数据到wakeup.cgi文件，但是根本就没有这个文件。没有办法下载tomato的源代码，希望可以从中有些收获。在源代码里根据wake关键字搜索了一下，有个文件ether-wake.c比较醒目，打开一看就是它了。下面是它的一些简单说明：
C++代码
- /* vi: set sw=4 ts=4: */
- /*
- * ether-wake.c - Send a magic packet to wake up sleeping machines.
- *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
- *
- * Author: Donald Becker, http://www.scyld.com/"; http://www.scyld.com/wakeonlan.html
- * Busybox port: Christian Volkmann <haveaniceday@online.de>
- * Used version of ether-wake.c: v1.09 11/12/2003 Donald Becker, http://www.scyld.com/";
- */
- /* full usage according Donald Becker
- * usage: ether-wake [-i <ifname>] [-p aa:bb:cc:dd[:ee:ff]] 00:11:22:33:44:55\n"
- *
- * This program generates and transmits a Wake-On-LAN (WOL)\n"
- * \"Magic Packet\", used for restarting machines that have been\n"
- * soft-powered-down (ACPI D3-warm state).\n"
- * It currently generates the standard AMD Magic Packet format, with\n"
- * an optional password appended.\n"
- *
- * The single required parameter is the Ethernet MAC (station) address\n"
- * of the machine to wake or a host ID with known NSS 'ethers' entry.\n"
- * The MAC address may be found with the 'arp' program while the target\n"
- * machine is awake.\n"
- *
- * Options:\n"
- * -b Send wake-up packet to the broadcast address.\n"
- * -D Increase the debug level.\n"
- * -i ifname Use interface IFNAME instead of the default 'eth0'.\n"
- * -p <pw> Append the four or six byte password PW to the packet.\n"
- * A password is only required for a few adapter types.\n"
- * The password may be specified in ethernet hex format\n"
- * or dotted decimal (Internet address)\n"
- * -p 00:22:44:66:88:aa\n"
- * -p 192.168.1.1\n";
- *
- *
- * This program generates and transmits a Wake-On-LAN (WOL) "Magic Packet",
- * used for restarting machines that have been soft-powered-down
- * (ACPI D3-warm state). It currently generates the standard AMD Magic Packet
- * format, with an optional password appended.
- *
- * This software may be used and distributed according to the terms
- * of the GNU Public License, incorporated herein by reference.
- * Contact the author for use under other terms.
- *
- * This source file was originally part of the network tricks package, and
- * is now distributed to support the Scyld Beowulf system.
- * Copyright 1999-2003 Donald Becker and Scyld Computing Corporation.
- *
- * The author may be reached as becker@scyld, or C/O
- * Scyld Computing Corporation
- * 914 Bay Ridge Road, Suite 220
- * Annapolis MD 21403
- *
- * Notes:
- * On some systems dropping root capability allows the process to be
- * dumped, traced or debugged.
- * If someone traces this program, they get control of a raw socket.
- * Linux handles this safely, but beware when porting this program.
- *
- * An alternative to needing 'root' is using a UDP broadcast socket, however
- * doing so only works with adapters configured for unicast+broadcast Rx
- * filter. That configuration consumes more power.
- */
这个文件的路径在x:\tomato\release\src\router\busybox\networking\ether-wake.c
根据文件看出我们要找的可执行文件名是ether-wake要传的参数是要唤醒机器的mac地址。在系统里执行了一下果然有此文件并执行成功了。
解决了什么问题？
想开机时再开机，随时随地可以控制远程电脑，不会24小时一直开机却什么也不做，也不会因为远程电脑关闭状态很多事做不了了。节能从一点一滴做起。
我的ＭＯＤＴ
raychou
2010-04-13 00:52:17