1 #!/bin/bash 2 3 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. 4 # Use of this source code is governed by a BSD-style license that can be 5 # found in the LICENSE file. 6 7 # Customizes a Chrome OS release image by setting the chronos user password. 8 9 # Usage: ./set_chronos_password.sh <image.bin> <chronos_password> [--force] 10 11 # Load common constants and variables. 12 . "$(dirname "$0")/common.sh" 13 14 change_chronos_password() { 15 local rootfs=$1 16 local password=$2 17 echo "Setting chronos password..." 18 local crypted_password="$(echo $password | openssl passwd -1 -stdin)" 19 local temp_shadow="$rootfs/etc/tempshadow" 20 echo "chronos:$crypted_password:14500:0:99999::::" \ 21 | sudo tee "$temp_shadow" > /dev/null 22 sudo grep -Ev ^chronos: "$rootfs/etc/shadow" \ 23 | sudo tee -a "$temp_shadow" > /dev/null 24 sudo mv -f "$temp_shadow" "$rootfs/etc/shadow" 25 } 26 27 main() { 28 set -e 29 30 local image=$1 31 local chronos_password=$2 32 if [ $# -ne 2 ] && [ $# -ne 3 ] || [ ! $3 = "--force" ] ; then 33 echo "Usage: $PROG <image.bin> <chronos_password> [--force]" 34 exit 1 35 fi 36 37 local rootfs=$(make_temp_dir) 38 if [ $# -eq 2 ]; then 39 mount_image_partition_ro "$image" 3 "$rootfs" 40 if ! no_chronos_password "$rootfs"; then 41 echo "Password is already set [use --force if you'd like to update it]" 42 exit 1 43 fi 44 # Prepare for remounting read/write. 45 sudo umount $rootfs 46 fi 47 mount_image_partition "$image" 3 "$rootfs" 48 change_chronos_password "$rootfs" "$chronos_password" 49 touch "$image" # Updates the image modification time. 50 echo "Password Set." 51 } 52 53 main $@ 54
