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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright (C) Catalyst .Net Ltd 2017
#
# 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 samba.tests
import ldb
import drs_base
from samba.dcerpc import drsuapi
class DrsCracknamesTestCase(drs_base.DrsBaseTestCase):
def setUp(self):
super(DrsCracknamesTestCase, self).setUp()
(self.drs, self.drs_handle) = self._ds_bind(self.dnsname_dc1)
self.ou = "ou=Cracknames_ou,%s" % self.ldb_dc1.get_default_basedn()
self.username = "Cracknames_user"
self.user = "cn=%s,%s" % (self.username, self.ou)
self.ldb_dc1.add({
"dn": self.ou,
"objectclass": "organizationalUnit"})
self.user_record = {
"dn": self.user,
"objectclass": "user",
"sAMAccountName": self.username,
"userPrincipalName": "test@test.com",
"servicePrincipalName": "test/%s" % self.ldb_dc1.get_default_basedn(),
"displayName": "test"}
self.ldb_dc1.add(self.user_record)
self.ldb_dc1.delete(self.user_record["dn"])
self.ldb_dc1.add(self.user_record)
# The formats specified in MS-DRSR 4.1.4.13; DS_NAME_FORMAT
# We don't support any of the ones specified in 4.1.4.1.2.
self.formats = {
drsuapi.DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
drsuapi.DRSUAPI_DS_NAME_FORMAT_NT4_ACCOUNT,
drsuapi.DRSUAPI_DS_NAME_FORMAT_DISPLAY,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID,
drsuapi.DRSUAPI_DS_NAME_FORMAT_CANONICAL,
drsuapi.DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
drsuapi.DRSUAPI_DS_NAME_FORMAT_CANONICAL_EX,
drsuapi.DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL,
drsuapi.DRSUAPI_DS_NAME_FORMAT_SID_OR_SID_HISTORY,
# This format is not supported by Windows (or us)
# drsuapi.DRSUAPI_DS_NAME_FORMAT_DNS_DOMAIN,
}
def tearDown(self):
self.ldb_dc1.delete(self.user)
self.ldb_dc1.delete(self.ou)
super(DrsCracknamesTestCase, self).tearDown()
def test_Cracknames(self):
"""
Verifies that we can cracknames any of the standard formats
(DS_NAME_FORMAT) to a GUID, and that we can cracknames a
GUID to any of the standard formats.
GUID was chosen just so that we don't have to do an n^2 loop.
"""
(result, ctr) = self._do_cracknames(self.user,
drsuapi.DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_OK)
user_guid = ctr.array[0].result_name
for name_format in self.formats:
(result, ctr) = self._do_cracknames(user_guid,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID,
name_format)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_OK,
"Expected 0, got %s, desired format is %s"
% (ctr.array[0].status, name_format))
(result, ctr) = self._do_cracknames(ctr.array[0].result_name,
name_format,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_OK,
"Expected 0, got %s, offered format is %s"
% (ctr.array[0].status, name_format))
def test_MultiValuedAttribute(self):
"""
Verifies that, if we try and cracknames with the desired output
being a multi-valued attribute, it returns
DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE.
"""
username = "Cracknames_user_MVA"
user = "cn=%s,%s" % (username, self.ou)
user_record = {
"dn": user,
"objectclass": "user",
"sAMAccountName": username,
"userPrincipalName": "test2@test.com",
"servicePrincipalName": ["test2/%s" % self.ldb_dc1.get_default_basedn(),
"test3/%s" % self.ldb_dc1.get_default_basedn()],
"displayName": "test2"}
self.ldb_dc1.add(user_record)
(result, ctr) = self._do_cracknames(user,
drsuapi.DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_OK)
user_guid = ctr.array[0].result_name
(result, ctr) = self._do_cracknames(user_guid,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID,
drsuapi.DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE)
self.ldb_dc1.delete(user)
def test_NoSPNAttribute(self):
"""
Verifies that, if we try and cracknames with the desired output
being an SPN, it returns
DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE.
"""
username = "Cracknames_no_SPN"
user = "cn=%s,%s" % (username, self.ou)
user_record = {
"dn": user,
"objectclass": "user",
"sAMAccountName" : username,
"userPrincipalName" : "test4@test.com",
"displayName" : "test4"}
self.ldb_dc1.add(user_record)
(result, ctr) = self._do_cracknames(user,
drsuapi.DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_OK)
user_guid = ctr.array[0].result_name
(result, ctr) = self._do_cracknames(user_guid,
drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID,
drsuapi.DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL)
self.assertEqual(ctr.count, 1)
self.assertEqual(ctr.array[0].status,
drsuapi.DRSUAPI_DS_NAME_STATUS_NOT_FOUND)
self.ldb_dc1.delete(user)
def _do_cracknames(self, name, format_offered, format_desired):
req = drsuapi.DsNameRequest1()
names = drsuapi.DsNameString()
names.str = name
req.codepage = 1252 # German, but it doesn't really matter here
req.language = 1033
req.format_flags = 0
req.format_offered = format_offered
req.format_desired = format_desired
req.count = 1
req.names = [names]
(result, ctr) = self.drs.DsCrackNames(self.drs_handle, 1, req)
return (result, ctr)
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