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s4/drs-test: Tests Deleted objects replication
Tests how deleted objects are replicated between two DCs. Currently the test exploits following vulnerabilities: - DsReplicaSync is not correctly implemented - a 'deleted object' is restored (kind of) in case DC1 replicates from DC2 before the 'deleted object' is replicated
This commit is contained in:
Kamen Mazdrashki
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source4/torture/drs/python/delete_object.py
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222
source4/torture/drs/python/delete_object.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# Unix SMB/CIFS implementation.
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# Copyright (C) Kamen Mazdrashki <kamenim@samba.org> 2010
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# Usage:
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# export DC1=dc1_dns_name
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# export DC2=dc2_dns_name
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# export SUBUNITRUN=$samba4srcdir/scripting/bin/subunitrun
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# PYTHONPATH="$PYTHONPATH:$samba4srcdir/torture/drs/python" $SUBUNITRUN delete_object -U"$DOMAIN/$DC_USERNAME"%"$DC_PASSWORD"
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#
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import sys
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import time
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import os
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sys.path.append("bin/python")
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from samba.auth import system_session
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from ldb import SCOPE_BASE, SCOPE_SUBTREE
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from samba.samdb import SamDB
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import samba.tests
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class DrsDeleteObjectTestCase(samba.tests.TestCase):
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# RootDSE msg for DC1
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info_dc1 = None
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ldb_dc1 = None
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# RootDSE msg for DC1
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info_dc2 = None
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ldb_dc2 = None
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def setUp(self):
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super(DrsDeleteObjectTestCase, self).setUp()
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# connect to DCs singleton
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if self.ldb_dc1 is None:
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DrsDeleteObjectTestCase.dc1 = get_env_var("DC1")
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DrsDeleteObjectTestCase.ldb_dc1 = connect_samdb(self.dc1)
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if self.ldb_dc2 is None:
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DrsDeleteObjectTestCase.dc2 = get_env_var("DC2")
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DrsDeleteObjectTestCase.ldb_dc2 = connect_samdb(self.dc2)
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# fetch rootDSEs
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if self.info_dc1 is None:
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ldb = self.ldb_dc1
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res = ldb.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
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self.assertEquals(len(res), 1)
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DrsDeleteObjectTestCase.info_dc1 = res[0]
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if self.info_dc2 is None:
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ldb = self.ldb_dc2
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res = ldb.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
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self.assertEquals(len(res), 1)
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DrsDeleteObjectTestCase.info_dc2 = res[0]
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# cache some of RootDSE props
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self.schema_dn = self.info_dc1["schemaNamingContext"][0]
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self.domain_dn = self.info_dc1["defaultNamingContext"][0]
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self.config_dn = self.info_dc1["configurationNamingContext"][0]
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self.forest_level = int(self.info_dc1["forestFunctionality"][0])
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# we will need DCs DNS names for 'net drs' command
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self.dnsname_dc1 = self.info_dc1["dnsHostName"][0]
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self.dnsname_dc2 = self.info_dc2["dnsHostName"][0]
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pass
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def test_noop(self):
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pass
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def tearDown(self):
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super(DrsDeleteObjectTestCase, self).tearDown()
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def _GUID_string(self, guid):
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return self.ldb_dc1.schema_format_value("objectGUID", guid)
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def _deleted_objects_dn(self, sam_ldb):
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wkdn = "<WKGUID=18E2EA80684F11D2B9AA00C04F79F805,%s>" % self.domain_dn
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res = sam_ldb.search(base=wkdn,
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scope=SCOPE_BASE,
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controls=["show_deleted:1"])
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self.assertEquals(len(res), 1)
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return str(res[0]["dn"])
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def _make_username(self):
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return "DrsDelObjUser_" + time.strftime("%s", time.gmtime())
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def _check_user(self, sam_ldb, user_orig, is_deleted):
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# search the user by guid as it may be deleted
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guid_str = self._GUID_string(user_orig["objectGUID"][0])
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expression = "(objectGUID=%s)" % guid_str
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res = sam_ldb.search(base=self.domain_dn,
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expression=expression,
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controls=["show_deleted:1"])
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self.assertEquals(len(res), 1)
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user_cur = res[0]
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# Deleted Object base DN
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dodn = self._deleted_objects_dn(sam_ldb)
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# now check properties of the user
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name_orig = user_orig["cn"][0]
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name_cur = user_cur["cn"][0]
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if is_deleted:
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self.assertEquals(user_cur["isDeleted"][0],"TRUE")
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self.assertTrue(not("objectCategory" in user_cur))
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self.assertTrue(not("sAMAccountType" in user_cur))
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self.assertTrue(dodn in str(user_cur["dn"]),
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"User %s is deleted but it is not located under %s!" % (name_orig, dodn))
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self.assertEquals(name_cur, name_orig + "\nDEL:" + guid_str)
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else:
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self.assertTrue(not("isDeleted" in user_cur))
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self.assertEquals(name_cur, name_orig)
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self.assertEquals(user_orig["dn"], user_cur["dn"])
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self.assertTrue(dodn not in str(user_cur["dn"]))
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pass
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def _net_drs_replicate(self, DC, fromDC):
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# find out where is net command
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net_cmd = os.path.abspath("./bin/net")
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# make command line credentials string
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creds = samba.tests.cmdline_credentials
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cmd_line_auth = "-U%s/%s%%%s" % (creds.get_domain(),
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creds.get_username(), creds.get_password())
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# bin/net drs replicate <Dest_DC_NAME> <Src_DC_NAME> <Naming Context>
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cmd_line = "%s drs replicate %s %s %s %s" % (net_cmd, DC, fromDC,
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self.domain_dn, cmd_line_auth)
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ret = os.system(cmd_line)
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self.assertEquals(ret, 0, "Replicating %s from %s has failed!" % (DC, fromDC))
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pass
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def test_NetReplicateCmd(self):
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# replicate Domain NC on DC2 from DC1
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self._net_drs_replicate(DC=self.dc2, fromDC=self.dc1)
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# replicate Domain NC on DC1 from DC2
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self._net_drs_replicate(DC=self.dc1, fromDC=self.dc2)
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pass
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def test_ReplicateDeteleteObject(self):
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# work-out unique username to test with
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username = self._make_username()
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# create user on DC1
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self.ldb_dc1.newuser(username=username, password="P@sswOrd!")
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ldb_res = self.ldb_dc1.search(base=self.domain_dn,
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scope=SCOPE_SUBTREE,
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expression="(samAccountName=%s)" % username)
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self.assertEquals(len(ldb_res), 1)
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user_orig = ldb_res[0]
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user_dn = ldb_res[0]["dn"]
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# check user info on DC1
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print "Testing for %s with GUID %s" % (username, self._GUID_string(user_orig["objectGUID"][0]))
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self._check_user(sam_ldb=self.ldb_dc1, user_orig=user_orig, is_deleted=False)
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# trigger replication from DC1 to DC2
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self._net_drs_replicate(DC=self.dc2, fromDC=self.dc1)
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# delete user on DC1
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self.ldb_dc1.delete(user_dn)
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# check user info on DC1 - should be deleted
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self._check_user(sam_ldb=self.ldb_dc1, user_orig=user_orig, is_deleted=True)
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# check user info on DC2 - should be valid user
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self._check_user(sam_ldb=self.ldb_dc2, user_orig=user_orig, is_deleted=False)
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# trigger replication from DC2 to DC1
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# to check if deleted object gets restored
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self._net_drs_replicate(DC=self.dc1, fromDC=self.dc2)
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# check user info on DC1 - should be deleted
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self._check_user(sam_ldb=self.ldb_dc1, user_orig=user_orig, is_deleted=True)
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# check user info on DC2 - should be valid user
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self._check_user(sam_ldb=self.ldb_dc2, user_orig=user_orig, is_deleted=False)
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# trigger replication from DC1 to DC2
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# to check if deleted object is replicated
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self._net_drs_replicate(DC=self.dc2, fromDC=self.dc1)
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# check user info on DC1 - should be deleted
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self._check_user(sam_ldb=self.ldb_dc1, user_orig=user_orig, is_deleted=True)
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# check user info on DC2 - should be deleted
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self._check_user(sam_ldb=self.ldb_dc2, user_orig=user_orig, is_deleted=True)
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pass
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########################################################################################
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def get_env_var(var_name):
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if not var_name in os.environ.keys():
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raise AssertionError("Please supply %s in environment" % var_name)
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return os.environ[var_name]
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def connect_samdb(samdb_url):
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ldb_options = []
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if not "://" in samdb_url:
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if os.path.isfile(samdb_url):
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samdb_url = "tdb://%s" % samdb_url
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else:
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samdb_url = "ldap://%s" % samdb_url
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# user 'paged_search' module when connecting remotely
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ldb_options = ["modules:paged_searches"]
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return SamDB(url=samdb_url,
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lp=samba.tests.env_loadparm(),
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session_info=system_session(),
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credentials=samba.tests.cmdline_credentials,
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options=ldb_options)
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