Attachment 150068 Details for Bug 232276 – A script in use

A script in use

worker.sh (text/plain), 5.41 KB, created by Artem S. Tashkinov on 2007-03-14 17:27:59 UTC

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Creator: Artem S. Tashkinov

Created: 2007-03-14 17:27:59 UTC

Size: 5.41 KB

patch

obsolete

>#! /bin/sh
>
>#----------------------------------------------------------------------
># Description: dm-crypt management over loop device with ext3fs
># Author: Artem S. Tashkinov aka birdie
># Created at: Sat Dec  9 17:26:37 YEKT 2006
># Computer: localhost
># System: Linux 2.6.9-42.0.3.ELsmp on i686
>#    
># Copyright (c) 2006 Artem S. Tashkinov aka birdie  All rights reserved.
># License: GPL2
>#----------------------------------------------------------------------
>
>SIZE=102400			# In megabytes. You can increase it maximum 1024fold!
>ENCFILE='cache-00$N.dat'	# Encrypted filename
>DESTDIR='/mnt/cache$N'		# A folder where encrypted disk images get mounted
>ENCDISK='cryptdisk$N'
>LOOPDEV='/dev/loop$N'
>
>WDIR=/root/.private	        # A folder to store encrypted disk images
>
>set -e # Let's get out if any command fails
>
>die()
>{
>	echo "$*"
>	exit 1
>}
>
>ask2go()
>{
>	echo -n "$* ... continue (n)? "
>	read a
>	test "$a" = "y" -o "$a" = "Y" || exit 1
>}
>
>initme()
>{
>	export ENCFILE=`eval echo $ENCFILE`
>	export ENCDISK=`eval echo $ENCDISK`
>	export LOOPDEV=`eval echo $LOOPDEV`
>	export DESTDIR=`eval echo $DESTDIR`
>}
>
>assign()
>{
>	test -z "$1" && die "Give me a number from 0 to 7"
>	test "$1" -ge 0 -a "$1" -le 7 || die "[$1] is not a number from 0 to 7"
>	N=$1
>	initme
>	echo "Trying to assign $ENCFILE ..."
>	echo "1. Assigning loop device $N"
>	test -z "`losetup /dev/loop$N 2>/dev/null | grep $ENCFILE`" && losetup $LOOPDEV $ENCFILE || die "Losetup LOOPDEV already assigned"
>	echo "2. Assigning crypto device, please enter a password: "
>	cryptsetup create $ENCDISK $LOOPDEV
>	echo "3. Mounting cryptdevice (with fsck'ing): "
>	mkdir -p $DESTDIR || die "Cannot create mount point"
>	e2fsck -v /dev/mapper/$ENCDISK
>	mount -t ext3 -o noatime,errors=remount-ro /dev/mapper/$ENCDISK $DESTDIR || die "Cannot mount"
>	echo "OK"
>}
>
>disassign()
>{
>	test -z "$1" && die "Give me a number from 0 to 7"
>	test "$1" -ge 0 -a "$1" -le 7 || die "[$1] is not a number from 0 to 7"
>	N=$1
>	initme
>	echo "Trying to disassign $ENCFILE ..."
>	echo "1. Unmounting cryptdevice: "
>	umount /dev/mapper/$ENCDISK || ask2go "Cannot unmount"
>	echo "2. Removing crypto device "
>	cryptsetup remove $ENCDISK ||  ask2go "Failed removing"
>	echo "3. Deleting loop device $N"
>	losetup -d /dev/loop$N ||  ask2go "Failed dislooping"
>	echo "OK"
>}
>
>create()
>{
>	test -z "$1" && die "Give me a number from 0 to 7"
>	test "$1" -ge 0 -a "$1" -le 7 || die "[$1] is not a number from 0 to 7"
>	N=$1
>	initme
>	echo "Trying to setup $ENCFILE ..."
>	echo "1. Creating file of $SIZE MB"
>	test -f $ENCFILE && die "File $ENCFILE already exists"
>	dd if=/dev/zero of=$ENCFILE bs=1M count=$SIZE || die "Cannot create $ENCFILE"
>	echo "2. Assigning loop device $N"
>	test -z "`losetup /dev/loop$N 2>/dev/null | grep $ENCFILE`" && losetup $LOOPDEV $ENCFILE || die "Losetup LOOPDEV already assigned"
>	echo "3. Creating crypto device, please enter a password twice: "
>	cryptsetup -y create $ENCDISK $LOOPDEV
>	echo "4. Formatting crypto device"
>	mke2fs -j -O dir_index /dev/mapper/$ENCDISK >/dev/null || die "mk2fs failed!"
>	echo "5. Mounting cryptdevice: "
>	mkdir -p $DESTDIR || die "Cannot create mount point"
>	mount -t ext3 -o noatime,errors=remount-ro /dev/mapper/$ENCDISK $DESTDIR || die "Cannot mount"
>	echo "OK"
>}
>
>delete()
>{
>	test -z "$1" && die "Give me a number from 0 to 7"
>	test "$1" -ge 0 -a "$1" -le 7 || die "[$1] is not a number from 0 to 7"
>	N=$1
>	initme
>	echo "Trying to delete $ENCFILE ..."
>	echo "1. Unmounting cryptdevice: "
>	umount /dev/mapper/$ENCDISK || ask2go "Cannot unmount"
>	echo "2. Removing crypto device "
>	cryptsetup remove $ENCDISK || ask2go "Failed removing"
>	echo "3. Deleting loop device $N"
>	losetup -d /dev/loop$N || ask2go "Failed dislooping"
>	echo "4. Erasing file"
>	/bin/rm -iv $ENCFILE
>	echo "OK"
>}
>
>
>grow()
>{
>	test -z "$1" && die "Give me a number from 0 to 7"
>	test "$1" -ge 0 -a "$1" -le 7 || die "[$1] is not a number from 0 to 7"
>	N=$1
>	initme
>	test ! -f "$ENCFILE" && die "Cannot find $ENCFILE"
>	test -n "`df | grep $ENCDISK`" -o "`losetup $LOOPDEV 2>/dev/null | grep $ENCFILE`" && die "Please, disassign at first!"
>	test -z "$2" && die "Give me number of MB to grow"
>	test ! "`echo $2/$2 | bc 2>/dev/null`" -eq 1 && die "[$2] must be a number"
>	echo "1. Growing file"
>	seek=`stat -c%s $ENCFILE`
>	seek=`echo $seek/1048576 | bc`
>	dd if=/dev/zero of=$ENCFILE bs=1M count=$2 seek=$seek conv=notrunc || die "Growing of $ENCFILE failed"
>	echo "2. Assigning loop device $N"
>	test -z "`losetup /dev/loop$N 2>/dev/null | grep $ENCFILE`" && losetup $LOOPDEV $ENCFILE || die "Losetup LOOPDEV already assigned"
>	echo "3. Assigning crypto device, please enter a password: "
>	cryptsetup create $ENCDISK $LOOPDEV
>	echo "4. Growing crypto device"
>	cryptsetup --verbose resize $ENCDISK || die "Growing failed"
>	echo "5. Mounting cryptdevice: "
>	mkdir -p $DESTDIR || die "Cannot create mount point"
>	mount -t ext3 -o noatime,errors=remount-ro /dev/mapper/$ENCDISK $DESTDIR || die "Cannot mount"
>	echo "6. Growing filesystem"
>	ext2online -C 0 --verbose /dev/mapper/$ENCDISK || die "Growing failed"
>	echo OK
>}
>
>test "$UID" -ne 0 && die "Must be a superuser to continue!"
>
>test ! -d $WDIR && die "Cannot find $WDIR"
>cd $WDIR || die "Cannot enter $WDIR"
>
>case "$1" in
>  assign)
>        assign $2
>        ;;
>  disassign)
>        disassign $2
>        ;;
>  create)
>        create $2
>        ;;
>  grow)
>        grow $2 $3
>        ;;
>  delete)
>        delete $2
>        ;;
>  status)
>        status
>        ;;
>  *)
>        echo $"Usage: $0 {create|grow|delete|assign|disassign|status}"
>        exit 1
>esac

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Attachments on bug 232276: 150068