/one-click-android-gateway

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one-click-android-gateway

https://www.youtube.com/embed/ES3ScIiueS8

wget https://raw.githubusercontent.com/kontorol/one-click-android-gateway/main/proxy.sh && chmod +x ./proxy.sh

Android shell

The computer uses ADB

Download address:

How to use:

  • To turn on "Android Debugging", in "Settings" - "Developer Options" - "Android Debugging", if you cannot find "Developer Options", you need to click "Version Number" 7 times in a row in "Settings" - "About Phone"

View devices:

adb devices

Wireless connection:

adb connect 192.168.0.111
  • For wireless connection, you need to enable network ADB debugging

Enter the shell:

adb shell

Upload files to your phone:

adb push 电脑路径 手机路径

Download the file to your computer:

adb pull 手机路径 电脑路径

Install the APK:

adb install APK路径

Mobile phones use Termux

Download address:

How to use:

  • (omitted)

Configure a bypass gateway

  • It is recommended to set the mobile phone as a fixed IP first, there are many ways please Google by yourself

One-click scripting

#!/system/bin/sh

tun='tun0' #虚拟接口名称
dev='wlan0' #物理接口名称，eth0、wlan0
interval=3 #检测网络状态间隔(秒)
pref=18000 #路由策略优先级

# 开启IP转发功能
sysctl -w net.ipv4.ip_forward=1

# 清除filter表转发链规则
iptables -F FORWARD

# 添加NAT转换，部分第三方VPN需要此设置否则无法上网，若要关闭请注释掉
iptables -t nat -A POSTROUTING -o $tun -j MASQUERADE

# 添加路由策略
ip rule add from all table main pref $pref
ip rule add from all iif $dev table $tun pref $(expr $pref - 1)

contain="from all iif $dev lookup $tun"

while true ;do
    if [[ $(ip rule) != *$contain* ]]; then
            if [[ $(ip ad|grep 'state UP') != *$dev* ]]; then
                echo -e "[$(date "+%H:%M:%S")]dev has been lost."
            else
                ip rule add from all iif $dev table $tun pref $(expr $pref - 1)
                echo -e "[$(date "+%H:%M:%S")]network changed, reset the routing policy."
            fi
    fi
    sleep $interval
done

Grant executable permissions:

chmod +x proxy.sh

Execute:

nohup ./proxy.sh &

Change the gateway

  • Global Device Change: Modify the DHCP settings of the primary route
  • Single device change: Change the gateway for the device

Troubleshooting

  • Every time the Android system switches network settings, some settings will be reset, and some "permanent" configuration methods will also be reset after the phone restarts

Check whether IP forwarding is enabled:

cat /proc/sys/net/ipv4/ip_forward

Check if iptables allow packets through:

iptables -nvL -t (filter|nat|mangle)

Check the routing policy:

ip rule

Check the NIC interface:

ip a