iwconfig设置问题,共享wifi给手机,谁帮我看一下这个问题,谢谢!

包含网卡/无线网的网络问题和ADSL/校园网/宽带拨号支持及代理/共享等网络使用问题
回复
Faye3000
帖子: 7
注册时间: 2010-08-22 23:54

iwconfig设置问题,共享wifi给手机,谁帮我看一下这个问题,谢谢!

#1

帖子 Faye3000 »

在网上找到一个脚本,用来建立ad-hoc来实现wifi共享,但是脚本里面有个iwconfig设置失败。谁帮我看看?在线求助!!!

iwconfig wlan0 mode ad-hoc #运行到这里就报错,错误信息是:Error for wireless request "Set Mode" (8B06) : SET failed on device wlan0 ; Operation not supported.

脚本如下:

代码: 全选

#!/bin/bash
#####################################
ShareNet=eth0
Wmode=ad-hoc
Wchannel=auto
Wessid=Leon_in_GuangZhou
WInterface=wlan0
WPasskey=androidworkab
Wkey=restricted
Igateway=192.168.2.254
Inetmask=255.255.255.0
Inetwork=192.168.2.0
DhcpRangeMin=192.168.2.10
DhcpRangeMax=192.168.2.105
#####################################

adhocFolder=/etc/adhoc
dnsmasqFile=$adhocFolder/dnsmasq.conf
resolvFile=/etc/resolv.conf
dnsmasqPid=/var/run/dnsmasq.pid
dnsmasqLeases=/var/run/dnsmasq.leases

# start Ad-hoc
function adhoc_start
{
	echo "Starting Ad-hoc..."
	check_dnsmasq
	sleep 1
	sudo ifconfig $WInterface down
	echo -n "Setting $WInterface gateway and netmask."
	sudo ifconfig $WInterface $Igateway netmask $Inetmask
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting up $WInterface ..."
	sudo ifconfig $WInterface up
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting $WInterface mode..."
	sudo iwconfig $WInterface mode $Wmode
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting $WInterface essid..."
	sudo iwconfig $WInterface essid $Wessid
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting $WInterface cannel..."
	sudo iwconfig $WInterface channel $Wchannel
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting $WInterface password..."
	sudo iwconfig $WInterface key s:$WPasskey
	sleep 1
	echo -n "    [ good ]"
	echo
	
	echo -n "Setting $WInterface key type..."
	sudo iwconfig $WInterface key $Wkey
	sleep 1
	echo -n "    [ good ]"
	echo
	echo
	echo -n "Setting iptable..."
	sleep 1
	#remove the old rules
	sudo iptables -N wireless-adhoc
  	sudo iptables -F wireless-adhoc
  	sudo iptables -t nat -F PREROUTING
  	sudo iptables -t nat -F POSTROUTING
  	sudo iptables -t nat -F
	#bring up the NAT rules
	sudo iptables -A wireless-adhoc -m state --state ESTABLISHED,RELATED -j ACCEPT
	sudo iptables -A wireless-adhoc -s $Inetwork/24 -j ACCEPT
	sudo iptables -A wireless-adhoc -p 47 -j ACCEPT
	sudo iptables -A wireless-adhoc -j DROP
	sudo iptables -A FORWARD -m state --state INVALID -j DROP
	sudo iptables -A FORWARD -j wireless-adhoc
	sudo iptables -t nat -I POSTROUTING -s $Inetwork/24 -j MASQUERADE
	sleep 1
	sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
	echo -n "."
	sleep 1
	sudo dnsmasq -i $WInterface --resolv-file=$resolvFile --conf-file=$dnsmasqFile
	echo
	echo "Success!^^"
}

# stop Ad-hoc
function adhoc_stop
{
	echo "Stopping adhoc ..."
	sudo sh -c "echo 0 > /proc/sys/net/ipv4/ip_forward"
	echo -n "."
	# stop adhoc mode
	sudo ifconfig $WInterface mode managed
	sleep 1
	echo -n "."
	sudo ifconfig $WInterface key off
	sleep 1
	echo -n "."
	sudo ifconfig $WInterface essid any
	sleep 1
	echo -n "."
	sudo ifconfig $WInterface down
	sleep 1
	echo -n "."
	# remove iptabled rules
	sudo iptables -D FORWARD -j wireless-adhoc
	sudo iptables -D FORWARD -m state --state INVALID -j DROP
	sudo iptables -F wireless-adhoc
	sudo iptables -X wireless-adhoc
	sudo iptables -t nat -F PREROUTING
	sudo iptables -t nat -F POSTROUTING
	sudo iptables -t nat -F
	sleep 1
	if [ -f $dnsmasqPid ]; then
		dnsmasqID=`cat $dnsmasqPid`
		kill $dnsmasqID
		sleep 1
	fi
	if [ -f $dnsmasqLeases ]; then 
		rm $dnsmasqLeases
	fi
	echo
	echo "Wifi ad-hoc now stopped"
}

function adhoc_restart
{
	echo "Now, resart ad-hoc ..."
	adhoc_stop
	sleep 2
	adhoc_start
}
# check dnsmasq.conf
function check_dnsmasq
{

	if [ -f $dnsmasqPid ]; then
		echo "Dhcp is running!"
		echo "Now, restart Ad-hoc"
		adhoc_stop
		sleep 1
	fi
	if [ ! -d $adhocFolder ]; then
	mkdir $adhocFolder
	fi

	if [ ! -f $dnsmasqFile ]; then
	echo "$dnsmasqFile is not exist, now building."

	echo "dhcp-authoritative" > $dnsmasqFile
	echo "dhcp-range=$DhcpRangeMin,$DhcpRangeMax,12h" >> $dnsmasqFile
	echo "dhcp-leasefile=$dnsmasqLeases" >> $dnsmasqFile
	echo "pid-file=$dnsmasqPid" >> $dnsmasqFile
	echo "user=root" >> $dnsmasqFile
	echo "no-negcache" >> $dnsmasqFile
	fi
}

# is super user?
function super_user
{
	if [ "$UID" = "0" ]; then
	return 0
	else
	return 1
	fi
}

function usage
{
	echo "Wifi Ad-hoc control"
	echo "$1 [-h][-s]"
	echo "Default is start ad-hoc"
	echo "-h show the usage"
	echo "-s stop ad-hoc"
	echo "-r restart ad-hoc"
}

if ! super_user ; then
echo "Need super user permission!"
exit 1
fi
if [ $# -lt 1 ]; then
adhoc_start
elif [ "$1" = "-h" ]; then
usage
elif [ "$1" = "-s" ]; then
adhoc_stop
elif [ "$1" = "-r" ]; then
adhoc_restart
else
echo "Input error!"
echo "$1 -h gives usage information."
fi 
Faye3000
帖子: 7
注册时间: 2010-08-22 23:54

Re: iwconfig设置问题,共享wifi给手机,谁帮我看一下这个问题,谢谢!

#2

帖子 Faye3000 »

pocoyo 写了:
sudo echo 1 > /proc/sys/net/ipv4/ip_forward # 或者添加net.ipv4.ip_forward = 1 到/etc/sysctl.conf 执行 sysctl -p 启用 以后开机即启用
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE # 启用包转发
在nm 里图形添加 ad-hoc 方式很直观。
你好,没弄懂,我只是单纯想linux下共享网络给手机。能告诉我怎么操作吗?就是执行你帖的代码吗? :em06
不好意思,求教!
Faye3000
帖子: 7
注册时间: 2010-08-22 23:54

Re: iwconfig设置问题,共享wifi给手机,谁帮我看一下这个问题,谢谢!

#3

帖子 Faye3000 »

pocoyo 写了:不知道你用什么发行版。
就是使用 network-manager 为这个无线网卡新建个无线连接起个ssid名称 -》 选 ad-hoc 方式 即可, 再把那两条命令执行一下。手机就能使用wifi 连接 你的无线网卡。 如果你的机器是用 其它的连接 来上网的话。 手机就可以共享宽带上网了。
我觉着电脑至少应该有双网卡才行。

搜索 linux 下 双网卡 共享上网 , 一样的原理 。 把手机当成一台电脑即可。
我用的是ubuntu11.10+Gnome3
嗯,大致了解了些。我电脑是eth0连外网 wlan0用无线提供wifi。 建好了无线链接,
SSID:linux-wifi
模式:ad-hoc
波段:自动
设备mac:00:17:C4:42:FD:2E(wlan0)

然后sudo sysctl -p
net.ipv4.ip_forward = 1
kernel.sem = 250 32000 100 128
kernel.shmmax = 536870912

在运行sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE 这个吗? 没反应,无线也没连。。。

不好意思,再次求教!!!十分感谢!!!
回复