#! /bin/bash

if [ $# -ne 1 ]; then
	echo "Usage: $0 <filename>" >&2
	exit 1
fi

if [ ! -f "$1" ]; then
	echo "File doesn't exist" >&2
	exit 2
fi

LOOP_DEV=$(su -c "losetup --find --show \"$1\"")
MAPPER=${LOOP_DEV##*/}
su -c "cryptsetup luksOpen $LOOP_DEV $MAPPER && mkdir -p /media/$MAPPER && mount /dev/mapper/$MAPPER /media/$MAPPER"