#! /bin/sh
set -e

PIDFILE=/var/run/sshd-oobm.pid
CONFFILE=/etc/ssh/sshd_oobm_config

# source function library
. /etc/init.d/functions

# /etc/init.d/sshd-oobm: start and stop the OpenBSD "secure shell" daemon for OOBM

test -x /usr/sbin/sshd || exit 0
( /usr/sbin/sshd -\? 2>&1 | grep -q OpenSSH ) 2>/dev/null || exit 0

# /etc/default/ssh may set SYSCONFDIR and SSHD_OPTS
if test -f /etc/default/ssh; then
    . /etc/default/ssh
fi

[ -z "$SYSCONFDIR" ] && SYSCONFDIR=/etc/ssh
mkdir -p $SYSCONFDIR

HOST_KEY_RSA=$SYSCONFDIR/ssh_host_rsa_key
HOST_KEY_DSA=$SYSCONFDIR/ssh_host_dsa_key
HOST_KEY_ECDSA=$SYSCONFDIR/ssh_host_ecdsa_key
HOST_KEY_ED25519=$SYSCONFDIR/ssh_host_ed25519_key

check_for_no_start() {
    # forget it if we're trying to start, and /etc/ssh/sshd_oobm_not_to_be_run exists
    if [ -e $SYSCONFDIR/sshd_oobm_not_to_be_run ]; then
	echo "OpenBSD Secure Shell server for OOBM not in use ($SYSCONFDIR/sshd_oobm_not_to_be_run)"
	exit 0
    fi
}

check_privsep_dir() {
    # Create the PrivSep empty dir if necessary
    if [ ! -d /var/run/sshd-oobm ]; then
	mkdir /var/run/sshd-oobm
	chmod 0755 /var/run/sshd-oobm
    fi
}

check_config() {
	/usr/sbin/sshd -t $SSHD_OPTS || exit 1
}

check_keys() {
	# create keys if necessary
	if [ ! -f $HOST_KEY_RSA ]; then
		echo "  generating ssh RSA key..."
		ssh-keygen -q -f $HOST_KEY_RSA -N '' -t rsa
	fi
	if [ ! -f $HOST_KEY_ECDSA ]; then
		echo "  generating ssh ECDSA key..."
		ssh-keygen -q -f $HOST_KEY_ECDSA -N '' -t ecdsa
	fi
	if [ ! -f $HOST_KEY_DSA ]; then
		echo "  generating ssh DSA key..."
		ssh-keygen -q -f $HOST_KEY_DSA -N '' -t dsa
	fi
	if [ ! -f $HOST_KEY_ED25519 ]; then
		echo "  generating ssh ED25519 key..."
		ssh-keygen -q -f $HOST_KEY_ED25519 -N '' -t ed25519
	fi
}

export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"

case "$1" in
  start)
	check_for_no_start
	echo "Starting OOBM server"
	check_keys
	check_privsep_dir
	start-stop-daemon -S -p $PIDFILE --make-pidfile --startas /usr/sbin/sshd -- -f $CONFFILE $SSHD_OPTS
        echo "done."
	;;
  stop)
        echo -n "Stopping OOBM server"
        pidno1=$(<$PIDFILE)
        pidno=$((pidno1 + 1))
        kill $pidno
        echo "."
	;;

  reload|force-reload|restart)
	check_for_no_start
	check_keys
	check_config
        echo -n "Reloading OOBM server configuration"
        /etc/init.d/sshd-oobm stop
        /etc/init.d/sshd-oobm start
        # start-stop-daemon -S -p $PIDFILE --make-pidfile --startas /usr/sbin/sshd -- -f $CONFFILE $SSHD_OPTS
	echo "."
	;;

#  restart)
#  	check_keys
#	check_config
#        echo -n "Restarting OpenBSD Secure Shell server: sshd"
#	start-stop-daemon -K -p $PIDFILE --oknodo --startas /usr/sbin/sshd
#	check_for_no_start
#	check_privsep_dir
#	sleep 2
#       start-stop-daemon -S -p $PIDFILE --make-pidfile --startas /usr/sbin/sshd -- -f $CONFFILE $SSHD_OPTS
#	echo "."
#	;;

  status)
	#�status /usr/sbin/sshd
        pidno1=$(<$PIDFILE)
        pidno=$((pidno1 + 1))
        if ps -p $pidno > /dev/null
        then
            echo "OOBM server ($pidno) is running"
        else
            echo "OOBM server is not running"
        fi
	exit $?
  ;;

  *)
	echo "Usage: /etc/init.d/ssh-oobm {start|stop|status|reload|force-reload|restart}"
	exit 1
esac

exit 0