#!/bin/bash

#
# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#

TS_TOPDIR="$(dirname $0)/../.."
TS_DESC="by devname"

. $TS_TOPDIR/functions.sh
ts_init "$*"
ts_skip_nonroot

set -o pipefail

modprobe --dry-run --quiet cryptoloop
[ "$?" == 0 ] || ts_skip "missing cryptoloop module"

modprobe cryptoloop &> /dev/null

PASSFILE=$TS_OUTPUT.pwd
IMAGE=$(ts_image_init)

echo "password" > $PASSFILE
exec 9<> $PASSFILE

DEVICE=$($TS_CMD_LOSETUP --pass-fd 9 --show --encryption blowfish --find $IMAGE)
[ "$?" == 0 ] || ts_die "Cannot init device"

mkfs.ext3 $DEVICE &> /dev/null || ts_die "Cannot make ext3 on $DEVICE" $DEVICE

sleep 3
$TS_CMD_LOSETUP --detach $DEVICE

[ -d "$TS_MOUNTPOINT" ] || mkdir -p $TS_MOUNTPOINT

# reopen (we need SEEK_SET 0, but this is shell...)
exec 9>&-
exec 9<> $PASSFILE

$TS_CMD_MOUNT --pass-fd 9 -o encryption=blowfish $IMAGE $TS_MOUNTPOINT 2>&1 >> $TS_OUTPUT

$TS_CMD_FINDMNT --kernel --target $TS_MOUNTPOINT  &> /dev/null
[ "$?" == "0" ] || ts_die "Cannot find $TS_MOUNTPOINT in /proc/self/mountinfo"

$TS_CMD_UMOUNT $TS_MOUNTPOINT || ts_die "Cannot umount $TS_MOUNTPOINT" $DEVICE

ts_device_deinit $DEVICE

ts_log "Success"
ts_finalize