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#!/bin/sh -e
#
# Script to wait for plugin-runner to exit before continuing boot
#
# Copyright © 2018 Teddy Hogeborn
# Copyright © 2018 Björn Påhlsson
#
# This file is part of Mandos.
#
# Mandos 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 3 of the License, or
# (at your option) any later version.
#
# Mandos 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 Mandos. If not, see <http://www.gnu.org/licenses/>.
#
# Contact the authors at <mandos@recompile.se>.
#
# This script will run in the initrd environment at boot and remove
# the file keeping the dummy plugin running, forcing plugin-runner to
# exit if it is still running.
# This script should be installed as
# "/usr/share/initramfs-tools/scripts/local-premount/mandos" which will
# eventually be "/scripts/local-premount/mandos" in the initrd.img
# file.
PREREQ=""
prereqs()
{
echo "$PREREQ"
}
case $1 in
prereqs)
prereqs
exit 0
;;
esac
. /scripts/functions
pid=$(cat /run/mandos-plugin-runner.pid 2>/dev/null)
# If the dummy plugin is running, removing this file should force the
# dummy plugin to exit successfully, thereby making plugin-runner shut
# down all its other plugins and then exit itself.
rm -f /run/mandos-keep-running >/dev/null 2>&1
# Wait for exit of plugin-runner, if still running
if [ -n "$pid" ]; then
while :; do
case "$(readlink /proc/"$pid"/exe 2>/dev/null)" in
*/plugin-runner) sleep 1;;
*) break;;
esac
done
rm -f /run/mandos-plugin-runner.pid >/dev/null 2>&1
fi
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