s4: Add a simple script to change dc password

This script will mostly be used by unit test (blackbox type) to test the
change of the dc password

Signed-off-by: Andrew Bartlett <abartlet@samba.org>

source4/scripting/devel/chgtdcpass

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+#
+# Copyright (C) Matthieu Patou <mat@matws.net>  2010
+#
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+
+import optparse
+import sys
+# Allow to run from s4 source directory (without installing samba)
+sys.path.insert(0, "bin/python")
+
+import samba.getopt as options
+from samba.credentials import DONT_USE_KERBEROS
+from samba.auth import system_session
+from samba import param
+from samba.upgradehelpers import (get_paths,
+                                 find_provision_key_parameters, get_ldbs,
+                                 update_machine_account_password)
+
+__docformat__ = "restructuredText"
+
+
+parser = optparse.OptionParser("provision [options]")
+sambaopts = options.SambaOptions(parser)
+parser.add_option_group(sambaopts)
+parser.add_option_group(options.VersionOptions(parser))
+credopts = options.CredentialsOptions(parser)
+parser.add_option_group(credopts)
+
+opts = parser.parse_args()[0]
+
+
+lp = sambaopts.get_loadparm()
+smbconf = lp.configfile
+creds = credopts.get_credentials(lp)
+creds.set_kerberos_state(DONT_USE_KERBEROS)
+
+
+if __name__ == '__main__':
+    paths = get_paths(param, smbconf=smbconf)
+    session = system_session()
+
+    ldbs = get_ldbs(paths, creds, session, lp)
+    ldbs.startTransactions()
+
+    names = find_provision_key_parameters(ldbs.sam, ldbs.secrets, ldbs.idmap,
+                                            paths, smbconf, lp)
+
+    update_machine_account_password(ldbs.sam, ldbs.secrets, names)
+    ldbs.groupedCommit()