mcrypt volumes

cvol_mount.sh

#!/bin/sh
LOSETUP=$(which losetup)
SUDO=$(which sudo)
MOUNT=$(which mount)
CRYPTSETUP=$(which cryptsetup)

FILE=$(realpath $1)
FILENAME=$(basename $1)

if [ ! -f "$FILE" ]; then
  echo "ERROR $FILE does not exist"
  exit 1
fi

$SUDO $LOSETUP -f $FILE

if [ $? -ne 0 ]; then
  echo "could not find loop device"
  exit 1
fi

DEVICE=$($LOSETUP -j $FILE | cut -f1 -d:)

$SUDO $CRYPTSETUP --type luks open $DEVICE $FILENAME

if [ $? -ne 0 ]; then
  echo "could not decrypt device"
  exit 1
fi

rm -rf $FILENAME-volume	
mkdir $FILENAME-volume

$SUDO $MOUNT /dev/mapper/$FILENAME $FILENAME-volume

if [ $? -ne 0 ]; then
  echo "could not mount device"
  exit 1
fi

USER=$(whoami)

$SUDO chown $USER:$(id -g -n $UID) $FILENAME-volume

if [ $? -ne 0 ]; then
  echo "could not change access rights"
  exit 1
fi

cvol_unmount.sh

#!/bin/sh
LOSETUP=$(which losetup)
SUDO=$(which sudo)
UMOUNT=$(which umount)
CRYPTSETUP=$(which cryptsetup)

FILE=$(realpath $1)
FILENAME=$(basename $1)
DEVICE=$($LOSETUP -j $FILE | cut -f1 -d:)

if [ ! -f "$FILE" ]; then
  echo "ERROR $FILE does not exist"
  exit 1
fi

$SUDO $UMOUNT /dev/mapper/$FILENAME

if [ $? -ne 0 ]; then
  echo "could not unmount the device"
  exit 1
fi

$SUDO $CRYPTSETUP close $FILENAME

if [ $? -ne 0 ]; then
  echo "could not close crypt volume"
  exit 1
fi

$SUDO $LOSETUP -d $DEVICE

if [ $? -ne 0 ]; then
  echo "could not detach loop device"
  exit 1
fi

rm -rf $FILENAME-volume

if [ $? -ne 0 ]; then
  echo "could not remove volume directory"
  exit 1
fi