#!/usr/bin/bash

if [ $(/usr/bin/id -u) != 0 ]; then echo "only root can do that"; exit 2; fi

##############################################################################
# This file is part of the CRYPTO BONE
# File     : cryptoboneexternd 
# Version  : 2.0 (external cryptobone)
# License  : BSD-3.Clause
# Date     : 24 May 2025
# Contact  : Please send enquiries and bug-reports to innovation@senderek.ie
#
# Copyright (c) 2015-2025
#	Ralf Senderek, Ireland.  All rights reserved. (https://senderek.ie)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#	   This product includes software developed by Ralf Senderek.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND  ANY EXPRESS OR 
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  IMPLIED WARRANTIES 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
# POSSIBILITY OF SUCH DAMAGE.
##############################################################################

# Author:       Ralf Senderek <innovation@senderek.ie>
#
# license:      BSD-3-Clause
# description:  Activates or deactivates the external cryptobone daemon via systemd 
# processname:  cryptoboneexternd 
# config:       none

# for comments see: ../README.extern

#-------------------------------------------------#

start() {

     # load the SELinux policy for the daemon
     if selinuxenabled ; then
	  echo "init selinux module"
          /usr/sbin/semodule -i /usr/lib/cryptobone/selinux/cryptobone.pp
          /usr/sbin/semodule -e cryptobone
	  echo "selinux module enabled"
     fi
     
     if [ -L /usr/lib/cryptobone/ext/masterkey ]; then
          # ensure that the master key is no longer in /dev/shm/BOOT and that secrets.tgz is deleted
          /usr/bin/rm -rf /dev/shm/BOOT 2>/dev/null
     fi
     
     # produce some entropy in the background
     find / 2> /dev/null > /dev/random &
     
     if [ ! -L /usr/lib/cryptobone/ext/masterkey ]; then
         # initialize database and create a master key and local key
	 echo "generate master key via /usr/lib/cryptobone/ext/initialkeysetup"
         /usr/lib/cryptobone/ext/initialkeysetup
     fi
    
     # update firewall setup?
     if [[ -r /usr/lib/cryptobone/ext/init.d/usefirewall ]]; then
          systemctl stop firewalld
	  /usr/lib/cryptobone/ext/firewall red
     fi
     if grep cryptobone /etc/passwd >/dev/null 2>/dev/null; then
          echo "correct permissions after update"
          chown cryptobone /usr/lib/cryptobone /usr/lib/cryptobone/ext
          chown cryptobone /usr/lib/cryptobone/ext/cryptoboneshell
     fi
     # start the daemon
     echo "starting the daemon"
     rm -f /usr/lib/cryptobone/ext/secrets.sock
     /usr/lib/cryptobone/ext/cryptoboneexternd 
}


##########################################################################
stop() {
     if [ -d /dev/shm/EXRAM ]
     then
         /usr/lib/cryptobone/ext/bin/savemessages
     fi
     killall cryptoboneexternd
}


##########################################################################
case "$1" in
  start)
	start
	;;
  stop) 
	stop
	;;
  restart)
        echo "deliberately not implemented"
	;;
  status)
        echo "deliberately not implemented"
	;;
  force-reload)
        echo "deliberately not implemented"
        ;;
  *)
	echo "Usage: /usr/lib/cryptobone/ext/init.d/cryptoboneexternd {start|stop}"
	exit 1
esac

exit 0