Is it possible to USB tether an android device using adb through the terminal?

天涯浪子 提交于 2019-11-30 05:07:28
PRNDL Development Studios

Must have root to change values with setprop, and I am on a Mac OS without a rndis driver so I could not test your method of USB tethering. Another way, if you have the connectivity service (adb shell service list):

The following commands call ConnectivityManager.setUsbTethering(boolean enable) in Android 4.3:

adb shell su -c service call connectivity 34 i32 1 turns on USB tethering.

adb shell su -c service call connectivity 34 i32 0 turns off USB tethering.

For other Android versions replace 34 with the following setUsbTethering calling codes per Android version:

4.4.4: 34
5.1.0: 30
6.0.1: 30
7.0.0: 33

For Android 5.0+ (Lollipop, Marshmallow) use:

adb shell su -c service call connectivity 30 i32 1 to turn USB Tethering ON

adb shell su -c service call connectivity 30 i32 0 to turn USB Tethering OFF

Keep in mind that this requires root.

James Hunt

Commands in accepted answer not work on Oreo because now should be additional parameter callerPkg and if put there some random text it works.

int setUsbTethering(boolean enable, String callerPkg);

So, for 8.0 / 8.1 Oreo:

service call connectivity 34 i32 1 s16 text - turn USB tethering ON

service call connectivity 34 i32 0 s16 text - turn USB tethering OFF

It works for me Android Pie with

service call connectivity 33 i32 1 s16 text - turn USB tethering ON

service call connectivity 33 i32 0 s16 text - turn USB tethering OFF

You can also script the inputs to start the Settings app and tick the checkbox, like in https://github.com/medvid/android-tether/blob/master/tether#L83.

Here's my script (pretty much the same as in the link, but slightly adapted):

adb shell am force-stop com.android.settings
adb shell input keyevent 3
sleep 2
adb shell am start -a android.intent.action.MAIN -n com.android.settings/.TetherSettings
sleep 2
adb shell input keyevent 19
adb shell input keyevent 20
adb shell input keyevent 66
sleep 2
adb shell input keyevent 3

For Windows, just replace sleep with timeout -t.

Works fine for my OnePlus 3T running Android Pie (9) (with Google's Settings app (running the Pixel Experience ROM); can't verify if it works with other Settings apps or not)

The service method did not work for me on my Samsung device. I figured out how to do it by configuring the network interface directly, though. Here is a script that sets up a Linux machine and a USB-connected rooted Android device for USB tethering. This does not set up DNS or NAT masquerading, but is sufficient to make the device accessible at 192.168.42.129:

#!/bin/bash
set -euo pipefail

# Set up USB tethering for an Android device.
# Usage: adb-usb-tether [USB-VENDOR USB-PRODUCT]
# If USB vendor/product is unspecified, use first USB network interface.
# On the Android side, tethering is enabled via adb shell.

if [[ $# -eq 2 ]]
then
    any=false
    vendor=$1
    product=$2
else
    any=true
fi

function find_if() {
    local path if
    for path in /sys/class/net/*
    do
        if=$(basename "$path")
        if [[ "$(readlink "$path")" == */usb* ]]
        then
            local ifproduct ifvendor
            ifproduct=$(cat "$(realpath "$path")/../../../idProduct")
            ifvendor=$(cat "$(realpath "$path")/../../../idVendor")
            if $any || [[ "$ifproduct" == "$product" && "$ifvendor" == "$vendor" ]]
            then
                echo "Found interface: $if" 1>&2
                echo "$if"
                return
            fi
        fi
    done
}

function adb_shell() {
    adb shell "$(printf " %q" "$@")"
}

function adb_su() {
    local quoted
    quoted="$(printf " %q" "$@")"
    adb shell su -c "$(printf %q "$quoted")"
}

if=$(find_if)
if [[ -z "$if" ]]
then
    echo "Requesting interface:" 1>&2
    adb_su setprop sys.usb.config rndis,adb
    echo " >> OK" 1>&2
fi

while [[ -z "$if" ]]
do
    echo "Waiting for network device..." 1>&2
    sleep 1
    if=$(find_if)
done

while ! ( ip link | grep -qF "$if" )
do
    echo "Waiting for interface..." 1>&2
    sleep 1
done

function configure_net() {
    local name="$1"
    local if="$2"
    local ip="$3"
    local table="$4"
    local cmdq="$5" # Query command
    local cmdx="$6" # Configuration command

    if ! ( "$cmdq" ip addr show dev "$if" | grep -qF 192.168.42."$ip" )
    then
        echo "Configuring $name interface address:" 1>&2
        "$cmdx" ip addr add 192.168.42."$ip"/24 dev "$if"
        echo " >> OK" 1>&2
    fi

    if ( "$cmdq" ip addr show dev "$if" | grep -qF 'state DOWN' )
    then
        echo "Bringing $name interface up:" 1>&2
        "$cmdx" ip link set dev "$if" up
        sleep 1
        echo " >> OK" 1>&2
    fi

    if ! ( "$cmdq" ip route show table "$table" | grep -qF "192.168.42.0/24 dev $if" )
    then
        echo "Configuring $name route:" 1>&2
        "$cmdx" ip route add table "$table" 192.168.42.0/24 dev "$if"
        echo " >> OK" 1>&2
    fi
}

configure_net local  "$if"   128 main  command   sudo
configure_net device rndis0  129 local adb_shell adb_su

For Fairphone 2 with Fairphone Open OS (the "Android without Google" version, which is not installed by default) you need to:

  • Enable Developer mode (may be actived by default)
  • Search setting for "root" and enable root access for ADB
  • Enter bash command in quotes and use service code 31:
    • Enable: adb shell su -c "service call connectivity 31 i32 1"
    • Disable: adb shell su -c "service call connectivity 31 i32 0"
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