source4/torture/drs/python/fsmo.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 #
   4 # Unix SMB/CIFS implementation.
   5 # Copyright (C) Anatoliy Atanasov <anatoliy.atanasov@postpath.com> 2010
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 #
  21 # Usage:
  22 #  export DC1=dc1_dns_name
  23 #  export DC2=dc2_dns_name
  24 #  export SUBUNITRUN=$samba4srcdir/scripting/bin/subunitrun
  25 #  PYTHONPATH="$PYTHONPATH:$samba4srcdir/torture/drs/python" $SUBUNITRUN fsmo -U"$DOMAIN/$DC_USERNAME"%"$DC_PASSWORD"
  26 #
  27
  28 from __future__ import print_function
  29 import sys
  30 import time
  31 import os
  32
  33 sys.path.insert(0, "bin/python")
  34
  35 from ldb import SCOPE_BASE
  36
  37 import drs_base
  38
  39 class DrsFsmoTestCase(drs_base.DrsBaseTestCase):
  40
  41     def setUp(self):
  42         super(DrsFsmoTestCase, self).setUp()
  43
  44         # we have to wait for the replication before we make the check
  45         self.fsmo_wait_max_time = 20
  46         self.fsmo_wait_sleep_time = 0.2
  47
  48         # cache some of RootDSE props
  49         self.dsServiceName_dc1 = self.info_dc1["dsServiceName"][0]
  50         self.dsServiceName_dc2 = self.info_dc2["dsServiceName"][0]
  51         self.infrastructure_dn = "CN=Infrastructure," + self.domain_dn
  52         self.naming_dn = "CN=Partitions," + self.config_dn
  53         self.rid_dn = "CN=RID Manager$,CN=System," + self.domain_dn
  54
  55     def tearDown(self):
  56         super(DrsFsmoTestCase, self).tearDown()
  57
  58     def _net_fsmo_role_transfer(self, DC, role, noop=False):
  59         # find out where is samba-tool command
  60         net_cmd = os.path.abspath("./bin/samba-tool")
  61         # make command line credentials string
  62         ccache_name = self.get_creds_ccache_name()
  63         cmd_line_auth = "--krb5-ccache=%s" % ccache_name
  64         (result, out, err) = self.runsubcmd("fsmo", "transfer",
  65                                             "--role=%s" % role,
  66                                             "-H", "ldap://%s:389" % DC,
  67                                             cmd_line_auth)
  68
  69         self.assertCmdSuccess(result, out, err)
  70         self.assertEquals(err,"","Shouldn't be any error messages")
  71         if noop == False:
  72             self.assertTrue("FSMO transfer of '%s' role successful" % role in out)
  73         else:
  74             self.assertTrue("This DC already has the '%s' FSMO role" % role in out)
  75
  76
  77     def _wait_for_role_transfer(self, ldb_dc, role_dn, master):
  78         """Wait for role transfer for certain amount of time
  79
  80         :return: (Result=True|False, CurrentMasterDnsName) tuple
  81         """
  82         cur_master = ''
  83         retries = int(self.fsmo_wait_max_time / self.fsmo_wait_sleep_time) + 1
  84         for i in range(0, retries):
  85             # check if master has been transfered
  86             res = ldb_dc.search(role_dn,
  87                                 scope=SCOPE_BASE, attrs=["fSMORoleOwner"])
  88             assert len(res) == 1, "Only one fSMORoleOwner value expected!"
  89             cur_master = res[0]["fSMORoleOwner"][0]
  90             if master == cur_master:
  91                 return (True, cur_master)
  92             # skip last sleep, if no need to wait anymore
  93             if i != (retries - 1):
  94                 # wait a little bit before next retry
  95                 time.sleep(self.fsmo_wait_sleep_time)
  96         return (False, cur_master)
  97
  98     def _role_transfer(self, role, role_dn):
  99         """Triggers transfer of role from DC1 to DC2
 100            and vice versa so the role goes back to the original dc"""
 101         # dc2 gets the role from dc1
 102         print("Testing for %s role transfer from %s to %s" % (role, self.dnsname_dc1, self.dnsname_dc2))
 103
 104         self._net_fsmo_role_transfer(DC=self.dnsname_dc2, role=role)
 105         # check if the role is transfered
 106         (res, master) = self._wait_for_role_transfer(ldb_dc=self.ldb_dc2,
 107                                                      role_dn=role_dn,
 108                                                      master=self.dsServiceName_dc2)
 109         self.assertTrue(res,
 110                         "Transferring %s role to %s has failed, master is: %s!"%(role, self.dsServiceName_dc2, master))
 111
 112         # dc1 gets back the role from dc2
 113         print("Testing for %s role transfer from %s to %s" % (role, self.dnsname_dc2, self.dnsname_dc1))
 114         self._net_fsmo_role_transfer(DC=self.dnsname_dc1, role=role)
 115         # check if the role is transfered
 116         (res, master) = self._wait_for_role_transfer(ldb_dc=self.ldb_dc1,
 117                                                      role_dn=role_dn,
 118                                                      master=self.dsServiceName_dc1)
 119         self.assertTrue(res,
 120                         "Transferring %s role to %s has failed, master is: %s!"%(role, self.dsServiceName_dc1, master))
 121
 122         # dc1 keeps the role
 123         print("Testing for no-op %s role transfer from %s to %s" % (role, self.dnsname_dc2, self.dnsname_dc1))
 124         self._net_fsmo_role_transfer(DC=self.dnsname_dc1, role=role, noop=True)
 125         # check if the role is transfered
 126         (res, master) = self._wait_for_role_transfer(ldb_dc=self.ldb_dc1,
 127                                                      role_dn=role_dn,
 128                                                      master=self.dsServiceName_dc1)
 129         self.assertTrue(res,
 130                         "Transferring %s role to %s has failed, master is: %s!"%(role, self.dsServiceName_dc1, master))
 131
 132     def test_SchemaMasterTransfer(self):
 133         self._role_transfer(role="schema", role_dn=self.schema_dn)
 134
 135     def test_InfrastructureMasterTransfer(self):
 136         self._role_transfer(role="infrastructure", role_dn=self.infrastructure_dn)
 137
 138     def test_PDCMasterTransfer(self):
 139         self._role_transfer(role="pdc", role_dn=self.domain_dn)
 140
 141     def test_RIDMasterTransfer(self):
 142         self._role_transfer(role="rid", role_dn=self.rid_dn)
 143
 144     def test_NamingMasterTransfer(self):
 145         self._role_transfer(role="naming", role_dn=self.naming_dn)