Replicant

#!/system/bin/sh

# Replicant USB Networking

# ========================

#

# Copyright (C) 2011,2014 Paul Kocialkowski and Riku Saikkonen, GPLv3+

#

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

CFG_TYPE="static"               # default to "dhcp" or "static"

USB_IFACE="rndis0"

STATIC_IP="192.168.4.202"

STATIC_IFCONFIG_OPTIONS=""      # e.g. "netmask 255.255.255.0"

STATIC_GATEWAY="192.168.4.200"

STATIC_DNS1="8.8.8.8"

STATIC_DNS2=""

start_rndis () {

    #echo 1 >/sys/class/android_usb/android0/enable

    #setprop sys.usb.config rndis,adb

    svc usb setFunction rndis

}

stop_rndis () {

    #echo 0 >/sys/class/android_usb/android0/enable

    #setprop sys.usb.config mtp,adb

    svc usb setFunction

}

if_up () {

    #ifconfig $USB_IFACE up

    netcfg $USB_IFACE up

}

if_down () {

    #ifconfig $USB_IFACE down

    netcfg $USB_IFACE down

}

dns_changed () {

    # Signal possible change of DNS server to libc

    setprop net.dnschange $((`getprop net.dnschange`+1))

}

configure_static () {

    if_up

    ifconfig $USB_IFACE $STATIC_IP $STATIC_IFCONFIG_OPTIONS

    route add default gw $STATIC_GATEWAY dev $USB_IFACE

    setprop net.dns1 "$STATIC_DNS1"

    setprop net.dns2 "$STATIC_DNS2"

    dns_changed

    echo "Static IP $STATIC_IP configured"

}

configure_dhcp () {

    echo "Configuring DHCP, please wait"

    #if_up

    #dhcpcd -d $USB_IFACE

    netcfg $USB_IFACE dhcp

    setprop net.dns1 "`getprop net.$USB_IFACE.dns1`"

    setprop net.dns2 "`getprop net.$USB_IFACE.dns2`"

    dns_changed

    echo "DHCP configured"

}

configure () {

    case "$CFG_TYPE" in

        dhcp)

            configure_dhcp

            ;;

        static)

            configure_static

            ;;

        *)

            echo "$0: invalid type: $CFG_TYPE" 1>&2

            exit 1

            ;;

    esac

}

[ "" != "$2" ] && CFG_TYPE="$2"

case "$1" in

    start1)

        echo "Starting Replicant USB networking, phase 1"

        start_rndis

        ;;

    start2)

        echo "Starting Replicant USB networking, phase 2"

        configure

        ;;

    start)

        echo "Starting Replicant USB networking"

        start_rndis

        echo "Please start connection sharing on host now!"

        # work around short DHCP timeout by sleeping here

        if [ "dhcp" = "$CFG_TYPE" ]; then

            echo "Waiting 15 s"

            sleep 15

        fi

        configure

        ;;

    stop)

        echo "Stopping Replicant USB networking"

        if_down

        stop_rndis

        ;;

    *)

        echo "Usage: sh $0 {start|start1|start2|stop} [{dhcp|static}]"

        ;;

esac

exit 0