LUKS Mount & Umount scripts

luksmount

#!/bin/bash
# ------------------------------------------------------------------
# [Christian Ego] luksmount
# Mounts an encrypted LUKS container 
# ------------------------------------------------------------------

HELP="\n
Usage:\n
\t$(basename $0) [FILE] [MOUNTPOINT] [FILESYSTEM]\n
\n
Arguments:\n
\tFILE:\t\tContainerfile to mount\n
\tMOUNTPOINT:\t[Optional] Mountpoint, Default: /mnt/CONTAINERNAME\n
\tFILESYSTEM:\t[Optional] Filesystem to mount, Default: ext4\n
"

if [ -z "$1" ]; then
	echo -e $HELP
	exit 1
fi

if [ "$(id -u)" -ne 0 ]; then
	echo "$(basename $0) must run with root permissions"
	exit 1
fi


CONTAINERFILE="$1"
CONTAINERNAME="$(basename $CONTAINERFILE)"
MOUNTPOINT="${2:-/media/$CONTAINERNAME}"
FILESYSTEM="${3:-ext4}"

LOOPDEV=$(/sbin/losetup -f)

if [ "$(/sbin/losetup -a | grep -c $CONTAINERFILE)" != "0" ]; then
	echo "$CONTAINERFILE already mounted"
	exit 1
fi

if mountpoint -q $MOUNTPOINT; then
	echo "mountpoint $MOUNTPOINT already in use"
	exit 1
fi

mkdir -p $MOUNTPOINT
/sbin/losetup $LOOPDEV $CONTAINERFILE
/sbin/cryptsetup luksOpen $LOOPDEV $CONTAINERNAME
/bin/mount -t $FILESYSTEM /dev/mapper/$CONTAINERNAME $MOUNTPOINT

luksumount

#!/bin/bash
# ------------------------------------------------------------------
# [Christian Ego] luksumount
# Unmounts an encrypted LUKS container 
# ------------------------------------------------------------------

HELP="\n
Usage:\n
\t$(basename $0) [FILE] [MOUNTPOINT]\n
\n
Arguments:\n
\tFILE:\t\tContainerfile to mount\n
\tMOUNTPOINT:\t[Optional] Mountpoint, Default: /mnt/CONTAINERNAME\n
"

if [ -z "$1" ]; then
	echo -e $HELP
	exit 1
fi

if [ "$(id -u)" -ne 0 ]; then
	echo "$(basename $0) must run with root permissions"
	exit 1
fi

CONTAINERFILE="$1"
CONTAINERNAME="$(basename $CONTAINERFILE)"
MOUNTPOINT="${2:-/media/$CONTAINERNAME}"

LOOPDEV=$(/sbin/losetup -a | grep "$SAFE" | sed "s/: .*//")

if [ "$(/sbin/losetup -a | grep -c $CONTAINERFILE)" != "1" ]; then
	echo "$CONTAINERFILE not mounted"
	exit 1
fi

if ! mountpoint -q $MOUNTPOINT; then
	echo "nothing mounted on $MOUNTPOINT"
	exit 1
fi

/bin/umount $MOUNTPOINT
/sbin/cryptsetup luksClose $CONTAINERNAME
/sbin/losetup -d $LOOPDEV
rmdir $MOUNTPOINT