1 #!/bin/bash 2 #********************************************************************************# 3 #* *# 4 #* Copyright (c) 2005 Instituto Nokia de Tecnologia - INdT - Manaus Brazil *# 5 #* *# 6 #* This program is free software; you can redistribute it and#or modify *# 7 #* it under the terms of the GNU General Public License as published by *# 8 #* the Free Software Foundation; either version 2 of the License, or *# 9 #* (at your option) any later version. *# 10 #* *# 11 #* This program is distributed in the hope that it will be useful, *# 12 #* but WITHOUT ANY WARRANTY; without even the implied warranty of *# 13 #* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See *# 14 #* the GNU General Public License for more details. *# 15 #* *# 16 #* You should have received a copy of the GNU General Public License *# 17 #* along with this program; if not, write to the Free Software *# 18 #* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *# 19 #* *# 20 #********************************************************************************# 21 22 #********************************************************************************# 23 #* *# 24 #* File: force_erase.sh *# 25 #* *# 26 #* Description: used to force-erase a card, usually when the user has forgot *# 27 #* the password and wants to unlock the card. NOTE: all the card's contents are *# 28 #* lost when using this option! It only works for _locked_ cards. *# 29 #* *# 30 #* Total Tests: 1 *# 31 #* *# 32 #* Author: Anderson Briglia <anderson.briglia (at] indt.org.br> *# 33 #* Anderson Lizardo <anderson.lizardo (at] indt.org.br> *# 34 #* Carlos Eduardo Aguiar <carlos.aguiar (at] indt.org.br> *# 35 #* *# 36 #* *# 37 #* *# 38 #********************************************************************************# 39 force_erase() 40 { 41 export TST_TOTAL=1 # Total number of test cases in this file. 42 # Set up LTPTMP (temporary directory used by the tests). 43 LTPTMP=${TMP} # Temporary directory to create files, etc. 44 export TCID="force_erase" # Test case identifier 45 export TST_COUNT=0 # Set up is initialized as test 0 46 RC=0 # Exit values of system commands used 47 48 echo "=== Erase MMC Password (AND its contents!) ===" 49 if grep -q "unlocked" /sys/bus/mmc/devices/mmc0\:*/lockable; then 50 echo -n "*** No locked MMC card was found. You can only use the forced " 51 echo "erase operation on locked cards." 52 exit 1 53 fi 54 55 while [ -z "$yn" ]; do 56 read -p "WARNING: all card contents will be lost! Continue? (y/n) " yn 57 case "$yn" in 58 y|Y) break ;; 59 n|N) exit 0 ;; 60 *) yn="" 61 esac 62 done 63 64 echo "Erasing card. This may take some time, wait..." 65 echo erase > /sys/bus/mmc/devices/mmc0\:*/lockable || \ 66 { echo "*** Error erasing card" >&2; exit 1 ;} 67 68 # Clear session keyring 69 # FIXME: It assumes we have only the MMC key there 70 keyctl clear -3 71 72 echo "Card unlocked and erased." 73 } 74 75 force_erase || exit $RC 76
