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Diffstat (limited to 'src/system/standalone_root_pw_reset')
| -rwxr-xr-x | src/system/standalone_root_pw_reset | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/system/standalone_root_pw_reset b/src/system/standalone_root_pw_reset new file mode 100755 index 000000000..c82cea321 --- /dev/null +++ b/src/system/standalone_root_pw_reset @@ -0,0 +1,178 @@ +#!/bin/bash +# **** License **** +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# 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. +# +# This code was originally developed by Vyatta, Inc. +# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc. +# All Rights Reserved. +# +# Author: Bob Gilligan <gilligan@vyatta.com> +# Description: Standalone script to set the admin passwd to new value +# value. Note: This script can ONLY be run as a standalone +# init program by grub. +# +# **** End License **** + +# The Vyatta config file: +CF=/opt/vyatta/etc/config/config.boot + +# Admin user name +ADMIN=vyos + +set_encrypted_password() { + sed -i \ + -e "/ user $1 {/,/encrypted-password/s/encrypted-password .*\$/encrypted-password \"$2\"/" $3 +} + + +# How long to wait for user to respond, in seconds +TIME_TO_WAIT=30 + +change_password() { + local user=$1 + local pwd1="1" + local pwd2="2" + + until [ "$pwd1" == "$pwd2" ] + do + read -p "Enter $user password: " -r -s pwd1 + echo + read -p "Retype $user password: " -r -s pwd2 + echo + + if [ "$pwd1" != "$pwd2" ] + then echo "Passwords do not match" + fi + done + + # set the password for the user then store it in the config + # so the user is recreated on the next full system boot. + local epwd=$(mkpasswd --method=sha-512 "$pwd1") + # escape any slashes in resulting password + local eepwd=$(sed 's:/:\\/:g' <<< $epwd) + set_encrypted_password $user $eepwd $CF +} + +# System is so messed up that doing anything would be a mistake +dead() { + echo $* + echo + echo "This tool can only recover missing admininistrator password." + echo "It is not a full system restore" + echo + echo -n "Hit return to reboot system: " + read + /sbin/reboot -f +} + +echo "Standalone root password recovery tool." +echo +# +# Check to see if we are running in standalone mode. We'll +# know that we are if our pid is 1. +# +if [ "$$" != "1" ]; then + echo "This tool can only be run in standalone mode." + exit 1 +fi + +# +# OK, now we know we are running in standalone mode. Talk to the +# user. +# +echo -n "Do you wish to reset the admin password? (y or n) " +read -t $TIME_TO_WAIT response +if [ "$?" != "0" ]; then + echo + echo "Response not received in time." + echo "The admin password will not be reset." + echo "Rebooting in 5 seconds..." + sleep 5 + echo + /sbin/reboot -f +fi + +response=${response:0:1} +if [ "$response" != "y" -a "$response" != "Y" ]; then + echo "OK, the admin password will not be reset." + echo -n "Rebooting in 5 seconds..." + sleep 5 + echo + /sbin/reboot -f +fi + +echo -en "Which admin account do you want to reset? [$ADMIN] " +read admin_user +ADMIN=${admin_user:-$ADMIN} + +echo "Starting process to reset the admin password..." + +echo "Re-mounting root filesystem read/write..." +mount -o remount,rw / + +if [ ! -f /etc/passwd ] +then dead "Missing password file" +fi + +if [ ! -d /opt/vyatta/etc/config ] +then dead "Missing VyOS config directory /opt/vyatta/etc/config" +fi + +# Leftover from V3.0 +if grep -q /opt/vyatta/etc/config /etc/fstab +then + echo "Mounting the config filesystem..." + mount /opt/vyatta/etc/config/ +fi + +if [ ! -f $CF ] +then dead "$CF file not found" +fi + +if ! grep -q 'system {' $CF +then dead "$CF file does not contain system settings" +fi + +if ! grep -q ' login {' $CF +then + # Recreate login section of system + sed -i -e '/system {/a\ + login {\ + }' $CF +fi + +if ! grep -q " user $ADMIN " $CF +then + echo "Recreating administrator $ADMIN in $CF..." + sed -i -e "/ login {/a\\ + user $ADMIN {\\ + authentication {\\ + encrypted-password \$6$IhbXHdwgYkLnt/$VRIsIN5c2f2v4L2l4F9WPDrRDEtWXzH75yBswmWGERAdX7oBxmq6m.sWON6pO6mi6mrVgYBxdVrFcCP5bI.nt.\\ + plaintext-password \"\"\\ + }\\ + level admin\\ + }" $CF +fi + +echo "Saving backup copy of config.boot..." +cp $CF ${CF}.before_pwrecovery +sync + +echo "Setting the administrator ($ADMIN) password..." +change_password $ADMIN + +echo $(date "+%b%e %T") $(hostname) "Admin password changed" \ + | tee -a /var/log/auth.log >>/var/log/messages + +sync + +echo "System will reboot in 10 seconds..." +sleep 10 +/sbin/reboot -f |