#!/bin/sh
#
# Univention Samba4
#  password set script
#
# Copyright 2004-2011 Univention GmbH
#
# http://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
# Logos, graphics, fonts, specific documentations and configurations,
# cryptographic keys etc. are subject to a license agreement between
# you and Univention and not subject to the GNU AGPL V3.
#
# In the case you use this program under the terms of the GNU AGPL V3,
# the program is provided 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
# <http://www.gnu.org/licenses/>.

eval "$(univention-config-registry shell)"

password=$(cat /etc/machine.secret)

samba_private_dir="/var/lib/samba/private"

set_machine_secret() {
	## 1. set new machine.secret in SAM
	samba-tool user setpassword "${hostname}\$" --newpassword="$(cat /etc/machine.secret)"

	## 2. store password locally in secrets.ldb
	kvno=$(ldbsearch -H "$samba_private_dir/sam.ldb" samAccountName="${hostname}\$" msDS-KeyVersionNumber | sed -n 's/msDS-KeyVersionNumber: \(.*\)/\1/p')

	ldbmodify -H "$samba_private_dir/secrets.ldb" <<-%EOF
	dn: flatname=${windows_domain},cn=Primary Domains
	changetype: modify
	replace: secret
	secret: $password
	-
	replace: msDS-KeyVersionNumber
	msDS-KeyVersionNumber: $kvno
	-
	%EOF

}

set_machine_secret