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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Tests various schema replication scenarios
#
# Copyright (C) Kamen Mazdrashki <kamenim@samba.org> 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/>.
#
#
# Usage:
# export DC1=dc1_dns_name
# export DC2=dc2_dns_name
# export SUBUNITRUN=$samba4srcdir/scripting/bin/subunitrun
# PYTHONPATH="$PYTHONPATH:$samba4srcdir/torture/drs/python" $SUBUNITRUN repl_schema -U"$DOMAIN/$DC_USERNAME"%"$DC_PASSWORD"
#
import sys
import time
import random
import os
sys.path.append("bin/python")
import samba
samba.ensure_external_module("testtools", "testtools")
samba.ensure_external_module("subunit", "subunit/python")
from ldb import (
ERR_NO_SUCH_OBJECT,
LdbError,
SCOPE_BASE,
Message,
FLAG_MOD_ADD,
FLAG_MOD_REPLACE,
)
import samba.tests
class DrsReplSchemaTestCase(samba.tests.TestCase):
# prefix for all objects created
obj_prefix = None
# current Class or Attribute object id
obj_id = 0
def setUp(self):
super(DrsReplSchemaTestCase, self).setUp()
# connect to DCs
url_dc = samba.tests.env_get_var_value("DC1")
(self.ldb_dc1, self.info_dc1) = samba.tests.connect_samdb_ex(url_dc,
ldap_only=True)
url_dc = samba.tests.env_get_var_value("DC2")
(self.ldb_dc2, self.info_dc2) = samba.tests.connect_samdb_ex(url_dc,
ldap_only=True)
# initialize objects prefix if not done yet
if self.obj_prefix is None:
t = time.strftime("%s", time.gmtime())
DrsReplSchemaTestCase.obj_prefix = "DrsReplSchema-%s" % t
# cache some of RootDSE props
self.schema_dn = self.info_dc1["schemaNamingContext"][0]
self.domain_dn = self.info_dc1["defaultNamingContext"][0]
self.config_dn = self.info_dc1["configurationNamingContext"][0]
self.forest_level = int(self.info_dc1["forestFunctionality"][0])
# we will need DCs DNS names for 'samba-tool drs' command
self.dnsname_dc1 = self.info_dc1["dnsHostName"][0]
self.dnsname_dc2 = self.info_dc2["dnsHostName"][0]
def tearDown(self):
super(DrsReplSchemaTestCase, self).tearDown()
def _net_drs_replicate(self, DC, fromDC, nc_dn):
"""Triggers replication cycle on 'DC' to
replicate from 'fromDC'. Naming context to
be replicated is 'nc_dn' dn"""
# find out where is net command
samba_tool_cmd = os.path.abspath("./bin/samba-tool")
# make command line credentials string
creds = self.get_credentials()
cmd_line_auth = "-U%s/%s%%%s" % (creds.get_domain(),
creds.get_username(), creds.get_password())
# bin/samba-tool drs replicate <Dest_DC_NAME> <Src_DC_NAME> <Naming Context>
cmd_line = "%s drs replicate %s %s %s %s" % (samba_tool_cmd, DC, fromDC,
nc_dn, cmd_line_auth)
ret = os.system(cmd_line)
self.assertEquals(ret, 0, "Replicating %s from %s has failed!" % (DC, fromDC))
def _GUID_string(self, guid):
return self.ldb_dc1.schema_format_value("objectGUID", guid)
def _ldap_schemaUpdateNow(self, sam_db):
rec = {"dn": "",
"schemaUpdateNow": "1"}
m = Message.from_dict(sam_db, rec, FLAG_MOD_REPLACE)
sam_db.modify(m)
def _make_obj_names(self, base_name):
'''Try to create a unique name for an object
that is to be added to schema'''
self.obj_id += 1
obj_name = "%s-%d-%s" % (self.obj_prefix, self.obj_id, base_name)
obj_ldn = obj_name.replace("-", "")
obj_dn = "CN=%s,%s" % (obj_name, self.schema_dn)
return (obj_dn, obj_name, obj_ldn)
def _schema_new_class(self, ldb_ctx, base_name, attrs=None):
(class_dn, class_name, class_ldn) = self._make_obj_names(base_name)
rec = {"dn": class_dn,
"objectClass": ["top", "classSchema"],
"cn": class_name,
"lDAPDisplayName": class_ldn,
"governsId": "1.2.840." + str(random.randint(1,100000)) + ".1.5.13",
"instanceType": "4",
"objectClassCategory": "1",
"subClassOf": "top",
"systemOnly": "FALSE"}
# allow overriding/adding attributes
if not attrs is None:
rec.update(attrs)
# add it to the Schema
ldb_ctx.add(rec)
self._ldap_schemaUpdateNow(ldb_ctx)
return (rec["lDAPDisplayName"], rec["dn"])
def _schema_new_attr(self, ldb_ctx, base_name, attrs=None):
(attr_dn, attr_name, attr_ldn) = self._make_obj_names(base_name)
rec = {"dn": attr_dn,
"objectClass": ["top", "attributeSchema"],
"cn": attr_name,
"lDAPDisplayName": attr_ldn,
"attributeId": "1.2.841." + str(random.randint(1,100000)) + ".1.5.13",
"attributeSyntax": "2.5.5.12",
"omSyntax": "64",
"instanceType": "4",
"isSingleValued": "TRUE",
"systemOnly": "FALSE"}
# allow overriding/adding attributes
if not attrs is None:
rec.update(attrs)
# add it to the Schema
ldb_ctx.add(rec)
self._ldap_schemaUpdateNow(ldb_ctx)
return (rec["lDAPDisplayName"], rec["dn"])
def _check_object(self, obj_dn):
'''Check if object obj_dn exists on both DCs'''
res_dc1 = self.ldb_dc1.search(base=obj_dn,
scope=SCOPE_BASE,
attrs=["*"])
self.assertEquals(len(res_dc1), 1,
"%s doesn't exists on %s" % (obj_dn, self.dnsname_dc1))
try:
res_dc2 = self.ldb_dc2.search(base=obj_dn,
scope=SCOPE_BASE,
attrs=["*"])
except LdbError, (enum, estr):
if enum == ERR_NO_SUCH_OBJECT:
self.fail("%s doesn't exists on %s" % (obj_dn, self.dnsname_dc2))
raise
self.assertEquals(len(res_dc2), 1,
"%s doesn't exists on %s" % (obj_dn, self.dnsname_dc2))
def test_class(self):
"""Simple test for classSchema replication"""
# add new classSchema object
(c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, "cls-S")
# force replication from DC1 to DC2
self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
# check object is replicated
self._check_object(c_dn)
def test_classInheritance(self):
"""Test inheritance through subClassOf
I think 5 levels of inheritance is pretty decent for now."""
# add 5 levels deep hierarchy
c_dn_list = []
c_ldn_last = None
for i in range(1, 6):
base_name = "cls-I-%02d" % i
(c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, base_name)
c_dn_list.append(c_dn)
if c_ldn_last:
# inherit from last class added
m = Message.from_dict(self.ldb_dc1,
{"dn": c_dn,
"subClassOf": c_ldn_last},
FLAG_MOD_REPLACE)
self.ldb_dc1.modify(m)
# store last class ldapDisplayName
c_ldn_last = c_ldn
# force replication from DC1 to DC2
self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
# check objects are replicated
for c_dn in c_dn_list:
self._check_object(c_dn)
def test_classWithCustomAttribute(self):
"""Create new Attribute and a Class,
that has value for newly created attribute.
This should check code path that searches for
AttributeID_id in Schema cache"""
# add new attributeSchema object
(a_ldn, a_dn) = self._schema_new_attr(self.ldb_dc1, "attr-A")
# add a base classSchema class so we can use our new
# attribute in class definition in a sibling class
(c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, "cls-A",
{"systemMayContain": a_ldn})
# add new classSchema object with value for a_ldb attribute
(c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, "cls-B",
{"objectClass": ["top", "classSchema", c_ldn],
a_ldn: "test_classWithCustomAttribute"})
# force replication from DC1 to DC2
self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
# check objects are replicated
self._check_object(c_dn)
self._check_object(a_dn)
def test_attribute(self):
"""Simple test for attributeSchema replication"""
# add new attributeSchema object
(a_ldn, a_dn) = self._schema_new_attr(self.ldb_dc1, "attr-S")
# force replication from DC1 to DC2
self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
# check object is replicated
self._check_object(a_dn)
def test_all(self):
"""Basic plan is to create bunch of classSchema
and attributeSchema objects, replicate Schema NC
and then check all objects are replicated correctly"""
# add new classSchema object
(c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, "cls-A")
# add new attributeSchema object
(a_ldn, a_dn) = self._schema_new_attr(self.ldb_dc1, "attr-A")
# add attribute to the class we have
m = Message.from_dict(self.ldb_dc1,
{"dn": c_dn,
"mayContain": a_ldn},
FLAG_MOD_ADD)
self.ldb_dc1.modify(m)
# force replication from DC1 to DC2
self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
# check objects are replicated
self._check_object(c_dn)
self._check_object(a_dn)
|
