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#!/bin/bash
#
# Copyright (C) 2025 Marc Haber
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
set -e
set -C
# this helper program gets run (as root) before the less privileged
# dailyaidecheck gets started. It currently just calls one executable rule
# to generate a cache file containing LVM run time data that cannot
# be obtained as non-root.
#
# If this construct is needed more often, this helper should be extended
# to iterate over all executable files that end in _needsroot.
#!/bin/sh
# TODO: parse DIR from configuration file
DIR="/var/lib/aide"
AIDEUSER="_aide"
mkdir -p "$DIR"
TEMPFILE=$(mktemp "$DIR/tmp.XXXXXX")
CACHEFILE="$DIR/10_aide_rootrules_cache"
NOW="$(date --iso-8601=seconds)"
SCRIPT="/etc/aide/aide.conf.d/10_aide_lvm_needsroot"
printf >> "${TEMPFILE}" "# output from %s on %s at %s:\n" "${SCRIPT}" "$(hostname --fqdn)" "${NOW}"
>> "${TEMPFILE}" "${SCRIPT}"
if [ ! -f "${CACHEFILE}" ] || ! cmp -s "${TEMPFILE}" "${CACHEFILE}"; then
mv "${TEMPFILE}" "${CACHEFILE}"
fi
rm -f "${TEMPFILE}"
chown "${AIDEUSER}" "${CACHEFILE}"
# vim: tabstop=4 shiftwidth=4 expandtab
# end of file
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