唤醒主机的WOL（Wake ON LAN ）脚本

唤醒主机的WOL（Wake ON LAN ）脚本

日志文件（LOGFILE）放在/tmp/。 OpenWrt 不提供与 DD-WRT 同样的页面。

注意：重新启动运行此脚本的路由器时会出现问题如 https://forum.openwrt.org/t/cant-reboot-while-sleep-script-wol/

伙计们，我发现 https://www.dd-wrt.com/wiki/index.php/Useful_Scripts#Web_Server_Wake-up 这个脚本通过请求唤醒主机
如果我的 Kodi 或 PC 想要任何东西，我会用它来唤醒我的 NAS。

要求:

固件版本: OpenWrt Barrier Breaker 14.07 / LuCI Trunk (0.12+svn-r10530)
内核版本: 3.10.49

脚本设置

Required to change	Variables	Default value	Description
optional	INTERVAL	5	repeat the script every N second
not required	OLD	empty	should be empty
optional	PORT	80	it the port who looks the script
optional	NUMP	3	the retries, before the script gave up
yes	TARGET	192.168.1.1	the wake up device
yes	INTERFACE	br-lan	here you can type in a broadcast address or a interface, i like more interface
yes	MAC	00:00:00:00:00:00	the target mac adress
not required	WOL	/usr/bin/etherwake	the program and path for wol
optional	LOGFILE	“/www/wol/index.html”	the log output folder, in this case for the url <ROUTER-IP>/wol/index.html
optional	LOGPROG	“logread”	i will read the logs from LOGREAD, but you can also read from “dmesg” or something else

说明

1. 准备工作

安装以下软件包

opkg update
opkg install etherwake

2. 编辑脚本

保存脚本

cat << "EOF" > /bin/autowol.sh
#!/bin/sh
#Enable JFFS2 and place script in /jffs/ then run on startup in web interface.
#You can check the log from http://192.168.1.1/user/wol.html
 
#debugging
#set -xv
 
INTERVAL=5
NUMP=3
OLD=""
PORT=80
TARGET=192.168.1.1
INTERFACE=br-lan
MAC=00:00:00:00:00:00
WOL=/usr/bin/etherwake
LOGFILE="/www/wol/index.html"
LOGPROG="logread" # default: dmesg
 
echo "<meta http-equiv=\"refresh\" content=\"10\">" > $LOGFILE
echo "AUTO WOL Script started at" `date` "<br>" >> $LOGFILE
 
wake_up () {
	PORT=$1
	TARGET=$2
	BROADCAST=$3
	MAC=$4
	NEW=`$LOGPROG | awk '/WOL_LOG/ && /DST='"$TARGET"'/ && /DPT='"$PORT"'/ {print }' | tail -1`
	SRC=`$LOGPROG | awk -F'[=| ]' '/WOL_LOG/ && /DST='"$TARGET"'/ && /DPT='"$PORT"'/ {print }' | tail -1`
	LINE=`$LOGPROG | awk '/WOL_LOG/ && /DST='"$TARGET"'/ && /DPT='"$PORT"'/'`
	if [ "$NEW" != "" -a "$NEW" != "$OLD" ]; then
		if ping -qc $NUMP $TARGET >/dev/null; then
			echo "NOWAKE $TARGET was accessed by $SRC and is already alive at" `date` "<br>">> $LOGFILE
		else
			echo "WAKE $SRC causes wake on lan at" `date` "<br>">> $LOGFILE
			$WOL -i $BROADCAST $MAC >> $LOGFILE
			echo "<br>" >> $LOGFILE
			sleep 5
		fi
		OLD=$NEW
	fi
}
 
while sleep $INTERVAL; do
wake_up $PORT $TARGET $INTERFACE $MAC;
done
EOF
chmod +x /bin/autowol.sh

Pro Tip: Don't copy the code above as it causes a bunch of errors due to a stray CRLF character at the end of each line. Instead just download a copy of the file here, and save yourself a day of troubleshooting!

3. 自动启动

如果脚本正常，则首先自动启动。

到 System → Startup → Local Startup 后输入:

/bin/autowol.sh

故障排除

开启 debug 输出:

sh -x -v /bin/autowol.sh

检查日志文件: http://192.168.1.1/wol/

到 Network → Firewall → Custom Rules 后添加以下规则:

iptables -I FORWARD 1 -p tcp -d 192.168.1.1 -m limit --limit 1/min -j LOG --log-prefix "WOL_LOG:  " --log-level 7

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