#!/bin/bash

#   FILE: hal-luks-remove -- HAL method wrapper for cryptsetup remove
# AUTHOR: W. Michael Petullo <mike@flyn.org>
#   DATE: 25 July 2005
# 
# Copyright (C) 2005 W. Michael Petullo <mike@flyn.org>
# All rights reserved.
# 
# This program 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 program 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.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

CRYPTSETUP=/sbin/cryptsetup

HAL_FIND_BY_PROPERTY=/usr/bin/hal-find-by-property
HAL_GET_PROPERTY=/usr/bin/hal-get-property

# make sure that the cleartext volume is unmounted
CLEARTEXT_VOLUME_UDI=`$HAL_FIND_BY_PROPERTY --key volume.crypto_luks.clear.backing_volume --string $HAL_PROP_INFO_UDI`
RET=$?
if [ x$RET = x0 ]; then
  MOUNT_POINT=`$HAL_GET_PROPERTY --udi $CLEARTEXT_VOLUME_UDI --key volume.mount_point`
  if [ ! x${#MOUNT_POINT} = x0 ]; then
    /bin/umount -l $MOUNT_POINT
  fi
fi

if [ ! -f $CRYPTSETUP ]; then
	echo Error removing $HAL_PROP_BLOCK_DEVICE - $CRYPTSETUP not found >&2
	exit 1
fi

if [ -z $HAL_PROP_VOLUME_UUID ]; then
	echo Error determining UUID of $HAL_PROP_BLOCK_DEVICE >&2
	exit 1
fi

if ! $CRYPTSETUP remove luks_crypto_$HAL_PROP_VOLUME_UUID 2> /dev/null; then
	echo Error removing luks_crypto_$HAL_PROP_VOLUME_UUID >&2
	exit 1
fi

exit 0
