rndis.sh

#!/bin/sh
#
#  Copyright 2018 madmonkey
#  Copyright 2018 DanTheMan827
#  
#  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.
#  
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#  
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.

CONFIGFS="/sys/class/android_usb/android0"
modname="lolhack"

setSysNode(){
  echo "$2" > "$1"
}

getMac(){
  local macfile="/data/rndis-mac-address"
  if [ ! -f "$macfile" ]; then
    dd if=/dev/urandom bs=6 count=1 2>/dev/null | hexdump -e '6/1 "%02x"' > "$macfile"
    sync &>/dev/null
  fi
  cat "$macfile"
}

start(){
  setSysNode "$CONFIGFS/enable" 0
  setSysNode "$CONFIGFS/functions" rndis
  setSysNode "$CONFIGFS/iManufacturer" "$modname"
  setSysNode "$CONFIGFS/iProduct" classic
  setSysNode "$CONFIGFS/iSerial" "$(getMac)"
  setSysNode "$CONFIGFS/f_rndis/manufacturer" "$modname"
  setSysNode "$CONFIGFS/f_rndis/vendorID" 057e
  setSysNode "$CONFIGFS/f_rndis/wceis" 1
  setSysNode "$CONFIGFS/idVendor" 04e8
  setSysNode "$CONFIGFS/idProduct" 6863
  setSysNode "$CONFIGFS/bDeviceClass" 224
  setSysNode "$CONFIGFS/enable" 1
  sleep 2
}

stop(){
  setSysNode "$CONFIGFS/enable" 0
  sleep 2
}

restart(){
  stop
  start
}

for mode in start stop restart; do
  if [ "$1" == "$mode" ]; then
    $mode
    exit $?
  fi
done

echo "$(basename "/$0") <start|stop|restart>"