source4/scripting/python/samba/join.py

   1 #!/usr/bin/env python
   2 #
   3 # python join code
   4 # Copyright Andrew Tridgell 2010
   5 # Copyright Andrew Bartlett 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 """Joining a domain."""
  22
  23 from samba.auth import system_session
  24 from samba.samdb import SamDB
  25 from samba import gensec, Ldb, drs_utils
  26 import ldb, samba, sys, os, uuid
  27 from samba.ndr import ndr_pack
  28 from samba.dcerpc import security, drsuapi, misc, nbt, lsa, drsblobs
  29 from samba.credentials import Credentials, DONT_USE_KERBEROS
  30 from samba.provision import secretsdb_self_join, provision, provision_fill, FILL_DRS, FILL_SUBDOMAIN
  31 from samba.schema import Schema
  32 from samba.net import Net
  33 import logging
  34 import talloc
  35 import random
  36 import time
  37
  38 # this makes debugging easier
  39 talloc.enable_null_tracking()
  40
  41 class DCJoinException(Exception):
  42
  43     def __init__(self, msg):
  44         super(DCJoinException, self).__init__("Can't join, error: %s" % msg)
  45
  46
  47 class dc_join(object):
  48     '''perform a DC join'''
  49
  50     def __init__(ctx, server=None, creds=None, lp=None, site=None,
  51             netbios_name=None, targetdir=None, domain=None):
  52         ctx.creds = creds
  53         ctx.lp = lp
  54         ctx.site = site
  55         ctx.netbios_name = netbios_name
  56         ctx.targetdir = targetdir
  57
  58         ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
  59         ctx.net = Net(creds=ctx.creds, lp=ctx.lp)
  60
  61         if server is not None:
  62             ctx.server = server
  63         else:
  64             print("Finding a writeable DC for domain '%s'" % domain)
  65             ctx.server = ctx.find_dc(domain)
  66             print("Found DC %s" % ctx.server)
  67
  68         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
  69                           session_info=system_session(),
  70                           credentials=ctx.creds, lp=ctx.lp)
  71
  72         try:
  73             ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
  74         except ldb.LdbError, (enum, estr):
  75             raise DCJoinException(estr)
  76
  77
  78         ctx.myname = netbios_name
  79         ctx.samname = "%s$" % ctx.myname
  80         ctx.base_dn = str(ctx.samdb.get_default_basedn())
  81         ctx.root_dn = str(ctx.samdb.get_root_basedn())
  82         ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
  83         ctx.config_dn = str(ctx.samdb.get_config_basedn())
  84         ctx.domsid = ctx.samdb.get_domain_sid()
  85         ctx.domain_name = ctx.get_domain_name()
  86         ctx.forest_domain_name = ctx.get_forest_domain_name()
  87         ctx.invocation_id = misc.GUID(str(uuid.uuid4()))
  88
  89         ctx.dc_ntds_dn = ctx.get_dsServiceName()
  90         ctx.dc_dnsHostName = ctx.get_dnsHostName()
  91         ctx.behavior_version = ctx.get_behavior_version()
  92
  93         ctx.acct_pass = samba.generate_random_password(32, 40)
  94
  95         # work out the DNs of all the objects we will be adding
  96         ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
  97         ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
  98         topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
  99         if ctx.dn_exists(topology_base):
 100             ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
 101         else:
 102             ctx.topology_dn = None
 103
 104         ctx.dnsdomain = ctx.samdb.domain_dns_name()
 105         ctx.dnsforest = ctx.samdb.forest_dns_name()
 106         ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
 107
 108         ctx.realm = ctx.dnsdomain
 109
 110         ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)
 111
 112         ctx.tmp_samdb = None
 113
 114         ctx.SPNs = [ "HOST/%s" % ctx.myname,
 115                      "HOST/%s" % ctx.dnshostname,
 116                      "GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest) ]
 117
 118         # these elements are optional
 119         ctx.never_reveal_sid = None
 120         ctx.reveal_sid = None
 121         ctx.connection_dn = None
 122         ctx.RODC = False
 123         ctx.krbtgt_dn = None
 124         ctx.drsuapi = None
 125         ctx.managedby = None
 126         ctx.subdomain = False
 127
 128
 129     def del_noerror(ctx, dn, recursive=False):
 130         if recursive:
 131             try:
 132                 res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
 133             except Exception:
 134                 return
 135             for r in res:
 136                 ctx.del_noerror(r.dn, recursive=True)
 137         try:
 138             ctx.samdb.delete(dn)
 139             print "Deleted %s" % dn
 140         except Exception:
 141             pass
 142
 143     def cleanup_old_join(ctx):
 144         '''remove any DNs from a previous join'''
 145         try:
 146             # find the krbtgt link
 147             print("checking samaccountname")
 148             if ctx.subdomain:
 149                 res = None
 150             else:
 151                 res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 152                                        expression='samAccountName=%s' % ldb.binary_encode(ctx.samname),
 153                                        attrs=["msDS-krbTgtLink"])
 154                 if res:
 155                     ctx.del_noerror(res[0].dn, recursive=True)
 156             if ctx.connection_dn is not None:
 157                 ctx.del_noerror(ctx.connection_dn)
 158             if ctx.krbtgt_dn is not None:
 159                 ctx.del_noerror(ctx.krbtgt_dn)
 160             ctx.del_noerror(ctx.ntds_dn)
 161             ctx.del_noerror(ctx.server_dn, recursive=True)
 162             if ctx.topology_dn:
 163                 ctx.del_noerror(ctx.topology_dn)
 164             if ctx.partition_dn:
 165                 ctx.del_noerror(ctx.partition_dn)
 166             if res:
 167                 ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
 168                 ctx.del_noerror(ctx.new_krbtgt_dn)
 169
 170             if ctx.subdomain:
 171                 binding_options = "sign"
 172                 lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 173                                      ctx.lp, ctx.creds)
 174
 175                 objectAttr = lsa.ObjectAttribute()
 176                 objectAttr.sec_qos = lsa.QosInfo()
 177
 178                 pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 179                                                  objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 180
 181                 name = lsa.String()
 182                 name.string = ctx.realm
 183                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 184
 185                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 186
 187                 name = lsa.String()
 188                 name.string = ctx.forest_domain_name
 189                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 190
 191                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 192
 193         except Exception:
 194             pass
 195
 196     def find_dc(ctx, domain):
 197         '''find a writeable DC for the given domain'''
 198         try:
 199             ctx.cldap_ret = ctx.net.finddc(domain, nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
 200         except Exception:
 201             raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
 202         if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
 203             ctx.site = ctx.cldap_ret.client_site
 204         return ctx.cldap_ret.pdc_dns_name
 205
 206
 207     def get_dsServiceName(ctx):
 208         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
 209         return res[0]["dsServiceName"][0]
 210
 211     def get_behavior_version(ctx):
 212         res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 213         if "msDS-Behavior-Version" in res[0]:
 214             return int(res[0]["msDS-Behavior-Version"][0])
 215         else:
 216             return samba.dsdb.DS_DOMAIN_FUNCTION_2000
 217
 218     def get_dnsHostName(ctx):
 219         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
 220         return res[0]["dnsHostName"][0]
 221
 222     def get_domain_name(ctx):
 223         '''get netbios name of the domain from the partitions record'''
 224         partitions_dn = ctx.samdb.get_partitions_dn()
 225         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 226                                expression='ncName=%s' % ctx.samdb.get_default_basedn())
 227         return res[0]["nETBIOSName"][0]
 228
 229     def get_forest_domain_name(ctx):
 230         '''get netbios name of the domain from the partitions record'''
 231         partitions_dn = ctx.samdb.get_partitions_dn()
 232         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 233                                expression='ncName=%s' % ctx.samdb.get_root_basedn())
 234         return res[0]["nETBIOSName"][0]
 235
 236     def get_parent_partition_dn(ctx):
 237         '''get the parent domain partition DN from parent DNS name'''
 238         res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
 239                                expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
 240                                (ctx.parent_dnsdomain, ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
 241         return str(res[0].dn)
 242
 243     def get_naming_master(ctx):
 244         '''get the parent domain partition DN from parent DNS name'''
 245         res = ctx.samdb.search(base='CN=Partitions,%s' % ctx.config_dn, attrs=['fSMORoleOwner'],
 246                                scope=ldb.SCOPE_BASE, controls=["extended_dn:1:1"])
 247         if not 'fSMORoleOwner' in res[0]:
 248             raise DCJoinException("Can't find naming master on partition DN %s" % ctx.partition_dn)
 249         master_guid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['fSMORoleOwner'][0]).get_extended_component('GUID')))
 250         master_host = '%s._msdcs.%s' % (master_guid, ctx.dnsforest)
 251         return master_host
 252
 253     def get_mysid(ctx):
 254         '''get the SID of the connected user. Only works with w2k8 and later,
 255            so only used for RODC join'''
 256         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
 257         binsid = res[0]["tokenGroups"][0]
 258         return ctx.samdb.schema_format_value("objectSID", binsid)
 259
 260     def dn_exists(ctx, dn):
 261         '''check if a DN exists'''
 262         try:
 263             res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
 264         except ldb.LdbError, (enum, estr):
 265             if enum == ldb.ERR_NO_SUCH_OBJECT:
 266                 return False
 267             raise
 268         return True
 269
 270     def add_krbtgt_account(ctx):
 271         '''RODCs need a special krbtgt account'''
 272         print "Adding %s" % ctx.krbtgt_dn
 273         rec = {
 274             "dn" : ctx.krbtgt_dn,
 275             "objectclass" : "user",
 276             "useraccountcontrol" : str(samba.dsdb.UF_NORMAL_ACCOUNT |
 277                                        samba.dsdb.UF_ACCOUNTDISABLE),
 278             "showinadvancedviewonly" : "TRUE",
 279             "description" : "krbtgt for %s" % ctx.samname}
 280         ctx.samdb.add(rec, ["rodc_join:1:1"])
 281
 282         # now we need to search for the samAccountName attribute on the krbtgt DN,
 283         # as this will have been magically set to the krbtgt number
 284         res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
 285         ctx.krbtgt_name = res[0]["samAccountName"][0]
 286
 287         print "Got krbtgt_name=%s" % ctx.krbtgt_name
 288
 289         m = ldb.Message()
 290         m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 291         m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
 292                                                   ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
 293         ctx.samdb.modify(m)
 294
 295         ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
 296         print "Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 297         ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 298
 299     def drsuapi_connect(ctx):
 300         '''make a DRSUAPI connection to the naming master'''
 301         binding_options = "seal"
 302         if int(ctx.lp.get("log level")) >= 4:
 303             binding_options += ",print"
 304         binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
 305         ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
 306         (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)
 307
 308     def create_tmp_samdb(ctx):
 309         '''create a temporary samdb object for schema queries'''
 310         ctx.tmp_schema = Schema(security.dom_sid(ctx.domsid),
 311                                 schemadn=ctx.schema_dn)
 312         ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
 313                               credentials=ctx.creds, lp=ctx.lp, global_schema=False,
 314                               am_rodc=False)
 315         ctx.tmp_samdb.set_schema(ctx.tmp_schema)
 316
 317     def build_DsReplicaAttribute(ctx, attrname, attrvalue):
 318         '''build a DsReplicaAttributeCtr object'''
 319         r = drsuapi.DsReplicaAttribute()
 320         r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
 321         r.value_ctr = 1
 322
 323
 324     def DsAddEntry(ctx, recs):
 325         '''add a record via the DRSUAPI DsAddEntry call'''
 326         if ctx.drsuapi is None:
 327             ctx.drsuapi_connect()
 328         if ctx.tmp_samdb is None:
 329             ctx.create_tmp_samdb()
 330
 331         objects = []
 332         for rec in recs:
 333             id = drsuapi.DsReplicaObjectIdentifier()
 334             id.dn = rec['dn']
 335
 336             attrs = []
 337             for a in rec:
 338                 if a == 'dn':
 339                     continue
 340                 if not isinstance(rec[a], list):
 341                     v = [rec[a]]
 342                 else:
 343                     v = rec[a]
 344                 rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
 345                 attrs.append(rattr)
 346
 347             attribute_ctr = drsuapi.DsReplicaAttributeCtr()
 348             attribute_ctr.num_attributes = len(attrs)
 349             attribute_ctr.attributes = attrs
 350
 351             object = drsuapi.DsReplicaObject()
 352             object.identifier = id
 353             object.attribute_ctr = attribute_ctr
 354
 355             list_object = drsuapi.DsReplicaObjectListItem()
 356             list_object.object = object
 357             objects.append(list_object)
 358
 359         req2 = drsuapi.DsAddEntryRequest2()
 360         req2.first_object = objects[0]
 361         prev = req2.first_object
 362         for o in objects[1:]:
 363             prev.next_object = o
 364             prev = o
 365
 366         (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
 367         if ctr.err_ver != 1:
 368             raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
 369         if ctr.err_data.status != (0, 'WERR_OK'):
 370             print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
 371                                                                 ctr.err_data.info.extended_err))
 372             raise RuntimeError("DsAddEntry failed")
 373         if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 374             print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
 375             raise RuntimeError("DsAddEntry failed")
 376         return ctr.objects
 377
 378
 379     def join_add_ntdsdsa(ctx):
 380         '''add the ntdsdsa object'''
 381         # FIXME: the partition (NC) assignment has to be made dynamic
 382         print "Adding %s" % ctx.ntds_dn
 383         rec = {
 384             "dn" : ctx.ntds_dn,
 385             "objectclass" : "nTDSDSA",
 386             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 387             "dMDLocation" : ctx.schema_dn}
 388
 389         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 390
 391         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 392             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 393
 394         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 395             rec["msDS-HasDomainNCs"] = ctx.base_dn
 396
 397         if ctx.RODC:
 398             rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
 399             rec["msDS-HasFullReplicaNCs"] = nc_list
 400             rec["options"] = "37"
 401             ctx.samdb.add(rec, ["rodc_join:1:1"])
 402         else:
 403             rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 404             rec["HasMasterNCs"]      = nc_list
 405             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 406                 rec["msDS-HasMasterNCs"] = nc_list
 407             rec["options"] = "1"
 408             rec["invocationId"] = ndr_pack(ctx.invocation_id)
 409             ctx.DsAddEntry([rec])
 410
 411         # find the GUID of our NTDS DN
 412         res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
 413         ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))
 414
 415
 416     def join_add_objects(ctx):
 417         '''add the various objects needed for the join'''
 418         if ctx.acct_dn:
 419             print "Adding %s" % ctx.acct_dn
 420             rec = {
 421                 "dn" : ctx.acct_dn,
 422                 "objectClass": "computer",
 423                 "displayname": ctx.samname,
 424                 "samaccountname" : ctx.samname,
 425                 "userAccountControl" : str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
 426                 "dnshostname" : ctx.dnshostname}
 427             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
 428                 rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
 429             if ctx.managedby:
 430                 rec["managedby"] = ctx.managedby
 431             if ctx.never_reveal_sid:
 432                 rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
 433             if ctx.reveal_sid:
 434                 rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
 435             ctx.samdb.add(rec)
 436
 437         if ctx.krbtgt_dn:
 438             ctx.add_krbtgt_account()
 439
 440         print "Adding %s" % ctx.server_dn
 441         rec = {
 442             "dn": ctx.server_dn,
 443             "objectclass" : "server",
 444             # windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
 445             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
 446                                 samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
 447                                 samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 448             # windows seems to add the dnsHostName later
 449             "dnsHostName" : ctx.dnshostname}
 450
 451         if ctx.acct_dn:
 452             rec["serverReference"] = ctx.acct_dn
 453
 454         ctx.samdb.add(rec)
 455
 456         if ctx.subdomain:
 457             # the rest is done after replication
 458             ctx.ntds_guid = None
 459             return
 460
 461         ctx.join_add_ntdsdsa()
 462
 463         if ctx.connection_dn is not None:
 464             print "Adding %s" % ctx.connection_dn
 465             rec = {
 466                 "dn" : ctx.connection_dn,
 467                 "objectclass" : "nTDSConnection",
 468                 "enabledconnection" : "TRUE",
 469                 "options" : "65",
 470                 "fromServer" : ctx.dc_ntds_dn}
 471             ctx.samdb.add(rec)
 472
 473         if ctx.acct_dn:
 474             print "Adding SPNs to %s" % ctx.acct_dn
 475             m = ldb.Message()
 476             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 477             for i in range(len(ctx.SPNs)):
 478                 ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
 479             m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
 480                                                            ldb.FLAG_MOD_ADD,
 481                                                            "servicePrincipalName")
 482             ctx.samdb.modify(m)
 483
 484             print "Setting account password for %s" % ctx.samname
 485             ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))" % ldb.binary_encode(ctx.samname),
 486                                   ctx.acct_pass,
 487                                   force_change_at_next_login=False,
 488                                   username=ctx.samname)
 489             res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-keyVersionNumber"])
 490             ctx.key_version_number = int(res[0]["msDS-keyVersionNumber"][0])
 491
 492             print("Enabling account")
 493             m = ldb.Message()
 494             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 495             m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
 496                                                          ldb.FLAG_MOD_REPLACE,
 497                                                          "userAccountControl")
 498             ctx.samdb.modify(m)
 499
 500
 501     def join_add_objects2(ctx):
 502         '''add the various objects needed for the join, for subdomains post replication'''
 503
 504         print "Adding %s" % ctx.partition_dn
 505         # NOTE: windows sends a ntSecurityDescriptor here, we
 506         # let it default
 507         rec = {
 508             "dn" : ctx.partition_dn,
 509             "objectclass" : "crossRef",
 510             "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
 511             "nCName" : ctx.base_dn,
 512             "nETBIOSName" : ctx.domain_name,
 513             "dnsRoot": ctx.dnsdomain,
 514             "trustParent" : ctx.parent_partition_dn,
 515             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN)}
 516         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 517             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 518
 519         rec2 = {
 520             "dn" : ctx.ntds_dn,
 521             "objectclass" : "nTDSDSA",
 522             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 523             "dMDLocation" : ctx.schema_dn}
 524
 525         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 526
 527         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 528             rec2["msDS-Behavior-Version"] = str(ctx.behavior_version)
 529
 530         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 531             rec2["msDS-HasDomainNCs"] = ctx.base_dn
 532
 533         rec2["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 534         rec2["HasMasterNCs"]      = nc_list
 535         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 536             rec2["msDS-HasMasterNCs"] = nc_list
 537         rec2["options"] = "1"
 538         rec2["invocationId"] = ndr_pack(ctx.invocation_id)
 539
 540         objects = ctx.DsAddEntry([rec, rec2])
 541         if len(objects) != 2:
 542             raise DCJoinException("Expected 2 objects from DsAddEntry")
 543
 544         ctx.ntds_guid = objects[1].guid
 545
 546         print("Replicating partition DN")
 547         ctx.repl.replicate(ctx.partition_dn,
 548                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 549                            ctx.ntds_guid,
 550                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 551                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 552
 553         print("Replicating NTDS DN")
 554         ctx.repl.replicate(ctx.ntds_dn,
 555                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 556                            ctx.ntds_guid,
 557                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 558                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 559
 560     def join_provision(ctx):
 561         '''provision the local SAM'''
 562
 563         print "Calling bare provision"
 564
 565         logger = logging.getLogger("provision")
 566         logger.addHandler(logging.StreamHandler(sys.stdout))
 567         smbconf = ctx.lp.configfile
 568
 569         presult = provision(logger, system_session(), None,
 570                             smbconf=smbconf, targetdir=ctx.targetdir, samdb_fill=FILL_DRS,
 571                             realm=ctx.realm, rootdn=ctx.root_dn, domaindn=ctx.base_dn,
 572                             schemadn=ctx.schema_dn,
 573                             configdn=ctx.config_dn,
 574                             serverdn=ctx.server_dn, domain=ctx.domain_name,
 575                             hostname=ctx.myname, domainsid=ctx.domsid,
 576                             machinepass=ctx.acct_pass, serverrole="domain controller",
 577                             sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
 578                             dns_backend="NONE")
 579         print "Provision OK for domain DN %s" % presult.domaindn
 580         ctx.local_samdb = presult.samdb
 581         ctx.lp          = presult.lp
 582         ctx.paths       = presult.paths
 583         ctx.names       = presult.names
 584
 585     def join_provision_own_domain(ctx):
 586         '''provision the local SAM'''
 587
 588         # we now operate exclusively on the local database, which
 589         # we need to reopen in order to get the newly created schema
 590         print("Reconnecting to local samdb")
 591         ctx.samdb = SamDB(url=ctx.local_samdb.url,
 592                           session_info=system_session(),
 593                           lp=ctx.local_samdb.lp,
 594                           global_schema=False)
 595         ctx.samdb.set_invocation_id(str(ctx.invocation_id))
 596         ctx.local_samdb = ctx.samdb
 597
 598         print("Finding domain GUID from ncName")
 599         res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
 600                                      controls=["extended_dn:1:1"])
 601         domguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
 602         print("Got domain GUID %s" % domguid)
 603
 604         print("Calling own domain provision")
 605
 606         logger = logging.getLogger("provision")
 607         logger.addHandler(logging.StreamHandler(sys.stdout))
 608
 609         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 610
 611         presult = provision_fill(ctx.local_samdb, secrets_ldb,
 612                                  logger, ctx.names, ctx.paths, domainsid=security.dom_sid(ctx.domsid),
 613                                  domainguid=domguid,
 614                                  targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
 615                                  machinepass=ctx.acct_pass, serverrole="domain controller",
 616                                  lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
 617                                  dns_backend="BIND9_FLATFILE")
 618         print("Provision OK for domain %s" % ctx.names.dnsdomain)
 619
 620
 621     def join_replicate(ctx):
 622         '''replicate the SAM'''
 623
 624         print "Starting replication"
 625         ctx.local_samdb.transaction_start()
 626         try:
 627             source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
 628             if ctx.ntds_guid is None:
 629                 print("Using DS_BIND_GUID_W2K3")
 630                 destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
 631             else:
 632                 destination_dsa_guid = ctx.ntds_guid
 633
 634             if ctx.RODC:
 635                 repl_creds = Credentials()
 636                 repl_creds.guess(ctx.lp)
 637                 repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
 638                 repl_creds.set_username(ctx.samname)
 639                 repl_creds.set_password(ctx.acct_pass)
 640             else:
 641                 repl_creds = ctx.creds
 642
 643             binding_options = "seal"
 644             if int(ctx.lp.get("log level")) >= 5:
 645                 binding_options += ",print"
 646             repl = drs_utils.drs_Replicate(
 647                 "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 648                 ctx.lp, repl_creds, ctx.local_samdb)
 649
 650             repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
 651                     destination_dsa_guid, schema=True, rodc=ctx.RODC,
 652                     replica_flags=ctx.replica_flags)
 653             repl.replicate(ctx.config_dn, source_dsa_invocation_id,
 654                     destination_dsa_guid, rodc=ctx.RODC,
 655                     replica_flags=ctx.replica_flags)
 656             if not ctx.subdomain:
 657                 repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 658                                destination_dsa_guid, rodc=ctx.RODC,
 659                                replica_flags=ctx.domain_replica_flags)
 660             if ctx.RODC:
 661                 repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
 662                         destination_dsa_guid,
 663                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 664                 repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
 665                         destination_dsa_guid,
 666                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 667             ctx.repl = repl
 668             ctx.source_dsa_invocation_id = source_dsa_invocation_id
 669             ctx.destination_dsa_guid = destination_dsa_guid
 670
 671             print "Committing SAM database"
 672         except:
 673             ctx.local_samdb.transaction_cancel()
 674             raise
 675         else:
 676             ctx.local_samdb.transaction_commit()
 677
 678     def send_DsReplicaUpdateRefs(ctx, dn):
 679         r = drsuapi.DsReplicaUpdateRefsRequest1()
 680         r.naming_context = drsuapi.DsReplicaObjectIdentifier()
 681         r.naming_context.dn = str(dn)
 682         r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
 683         r.naming_context.sid = security.dom_sid("S-0-0")
 684         r.dest_dsa_guid = ctx.ntds_guid
 685         r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
 686         r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
 687         if not ctx.RODC:
 688             r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
 689
 690         if ctx.drsuapi:
 691             ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
 692
 693     def join_finalise(ctx):
 694         '''finalise the join, mark us synchronised and setup secrets db'''
 695
 696         print "Sending DsReplicateUpdateRefs for all the partitions"
 697         ctx.send_DsReplicaUpdateRefs(ctx.schema_dn)
 698         ctx.send_DsReplicaUpdateRefs(ctx.config_dn)
 699         ctx.send_DsReplicaUpdateRefs(ctx.base_dn)
 700
 701         print "Setting isSynchronized and dsServiceName"
 702         m = ldb.Message()
 703         m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
 704         m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
 705         m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
 706                                                 ldb.FLAG_MOD_REPLACE, "dsServiceName")
 707         ctx.local_samdb.modify(m)
 708
 709         if ctx.subdomain:
 710             return
 711
 712         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 713
 714         print "Setting up secrets database"
 715         secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
 716                             realm=ctx.realm,
 717                             dnsdomain=ctx.dnsdomain,
 718                             netbiosname=ctx.myname,
 719                             domainsid=security.dom_sid(ctx.domsid),
 720                             machinepass=ctx.acct_pass,
 721                             secure_channel_type=ctx.secure_channel_type,
 722                             key_version_number=ctx.key_version_number)
 723
 724     def join_setup_trusts(ctx):
 725         '''provision the local SAM'''
 726
 727         def arcfour_encrypt(key, data):
 728             from Crypto.Cipher import ARC4
 729             c = ARC4.new(key)
 730             return c.encrypt(data)
 731
 732         def string_to_array(string):
 733             blob = [0] * len(string)
 734
 735             for i in range(len(string)):
 736                 blob[i] = ord(string[i])
 737
 738             return blob
 739
 740         print "Setup domain trusts with server %s" % ctx.server
 741         binding_options = ""  # why doesn't signing work gere? w2k8r2 claims no session key
 742         lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
 743                              ctx.lp, ctx.creds)
 744
 745         objectAttr = lsa.ObjectAttribute()
 746         objectAttr.sec_qos = lsa.QosInfo()
 747
 748         pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 749                                          objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 750
 751         info = lsa.TrustDomainInfoInfoEx()
 752         info.domain_name.string = ctx.dnsdomain
 753         info.netbios_name.string = ctx.domain_name
 754         info.sid = security.dom_sid(ctx.domsid)
 755         info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
 756         info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
 757         info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
 758
 759         try:
 760             oldname = lsa.String()
 761             oldname.string = ctx.dnsdomain
 762             oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
 763                                                            lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 764             print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
 765             lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
 766         except RuntimeError:
 767             pass
 768
 769         password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))
 770
 771         clear_value = drsblobs.AuthInfoClear()
 772         clear_value.size = len(password_blob)
 773         clear_value.password = password_blob
 774
 775         clear_authentication_information = drsblobs.AuthenticationInformation()
 776         clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
 777         clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
 778         clear_authentication_information.AuthInfo = clear_value
 779
 780         authentication_information_array = drsblobs.AuthenticationInformationArray()
 781         authentication_information_array.count = 1
 782         authentication_information_array.array = [clear_authentication_information]
 783
 784         outgoing = drsblobs.trustAuthInOutBlob()
 785         outgoing.count = 1
 786         outgoing.current = authentication_information_array
 787
 788         trustpass = drsblobs.trustDomainPasswords()
 789         confounder = [3] * 512
 790
 791         for i in range(512):
 792             confounder[i] = random.randint(0, 255)
 793
 794         trustpass.confounder = confounder
 795
 796         trustpass.outgoing = outgoing
 797         trustpass.incoming = outgoing
 798
 799         trustpass_blob = ndr_pack(trustpass)
 800
 801         encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
 802
 803         auth_blob = lsa.DATA_BUF2()
 804         auth_blob.size = len(encrypted_trustpass)
 805         auth_blob.data = string_to_array(encrypted_trustpass)
 806
 807         auth_info = lsa.TrustDomainInfoAuthInfoInternal()
 808         auth_info.auth_blob = auth_blob
 809
 810         trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
 811                                                          info,
 812                                                          auth_info,
 813                                                          security.SEC_STD_DELETE)
 814
 815         rec = {
 816             "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
 817             "objectclass" : "trustedDomain",
 818             "trustType" : str(info.trust_type),
 819             "trustAttributes" : str(info.trust_attributes),
 820             "trustDirection" : str(info.trust_direction),
 821             "flatname" : ctx.forest_domain_name,
 822             "trustPartner" : ctx.dnsforest,
 823             "trustAuthIncoming" : ndr_pack(outgoing),
 824             "trustAuthOutgoing" : ndr_pack(outgoing)
 825             }
 826         ctx.local_samdb.add(rec)
 827
 828         rec = {
 829             "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
 830             "objectclass" : "user",
 831             "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
 832             "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le')
 833             }
 834         ctx.local_samdb.add(rec)
 835
 836
 837     def do_join(ctx):
 838         ctx.cleanup_old_join()
 839         try:
 840             ctx.join_add_objects()
 841             ctx.join_provision()
 842             ctx.join_replicate()
 843             if ctx.subdomain:
 844                 ctx.join_add_objects2()
 845                 ctx.join_provision_own_domain()
 846                 ctx.join_setup_trusts()
 847             ctx.join_finalise()
 848         except Exception:
 849             print "Join failed - cleaning up"
 850             ctx.cleanup_old_join()
 851             raise
 852
 853
 854 def join_RODC(server=None, creds=None, lp=None, site=None, netbios_name=None,
 855               targetdir=None, domain=None, domain_critical_only=False):
 856     """join as a RODC"""
 857
 858     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain)
 859
 860     lp.set("workgroup", ctx.domain_name)
 861     print("workgroup is %s" % ctx.domain_name)
 862
 863     lp.set("realm", ctx.realm)
 864     print("realm is %s" % ctx.realm)
 865
 866     ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
 867
 868     # setup some defaults for accounts that should be replicated to this RODC
 869     ctx.never_reveal_sid = [ "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
 870                              "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
 871                              "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
 872                              "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
 873                              "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS ]
 874     ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
 875
 876     mysid = ctx.get_mysid()
 877     admin_dn = "<SID=%s>" % mysid
 878     ctx.managedby = admin_dn
 879
 880     ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
 881                               samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
 882                               samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
 883
 884     ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
 885                       "RestrictedKrbHost/%s" % ctx.dnshostname ])
 886
 887     ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
 888     ctx.secure_channel_type = misc.SEC_CHAN_RODC
 889     ctx.RODC = True
 890     ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
 891                            drsuapi.DRSUAPI_DRS_PER_SYNC |
 892                            drsuapi.DRSUAPI_DRS_GET_ANC |
 893                            drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
 894                            drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
 895                            drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
 896     ctx.domain_replica_flags = ctx.replica_flags
 897     if domain_critical_only:
 898         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
 899
 900     ctx.do_join()
 901
 902
 903     print "Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid)
 904
 905
 906 def join_DC(server=None, creds=None, lp=None, site=None, netbios_name=None,
 907             targetdir=None, domain=None, domain_critical_only=False):
 908     """join as a DC"""
 909     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain)
 910
 911     lp.set("workgroup", ctx.domain_name)
 912     print("workgroup is %s" % ctx.domain_name)
 913
 914     lp.set("realm", ctx.realm)
 915     print("realm is %s" % ctx.realm)
 916
 917     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
 918
 919     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
 920     ctx.secure_channel_type = misc.SEC_CHAN_BDC
 921
 922     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
 923                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
 924                          drsuapi.DRSUAPI_DRS_PER_SYNC |
 925                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
 926                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
 927     ctx.domain_replica_flags = ctx.replica_flags
 928     if domain_critical_only:
 929         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
 930
 931     ctx.do_join()
 932     print "Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)
 933
 934 def join_subdomain(server=None, creds=None, lp=None, site=None, netbios_name=None,
 935                    targetdir=None, parent_domain=None, dnsdomain=None, netbios_domain=None):
 936     """join as a DC"""
 937     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, parent_domain)
 938     ctx.subdomain = True
 939     ctx.parent_domain_name = ctx.domain_name
 940     ctx.domain_name = netbios_domain
 941     ctx.realm = dnsdomain
 942     ctx.parent_dnsdomain = ctx.dnsdomain
 943     ctx.parent_partition_dn = ctx.get_parent_partition_dn()
 944     ctx.dnsdomain = dnsdomain
 945     ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
 946     ctx.naming_master = ctx.get_naming_master()
 947     if ctx.naming_master != ctx.server:
 948         print("Reconnecting to naming master %s" % ctx.naming_master)
 949         ctx.server = ctx.naming_master
 950         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
 951                           session_info=system_session(),
 952                           credentials=ctx.creds, lp=ctx.lp)
 953
 954     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
 955     ctx.domsid = str(security.random_sid())
 956     ctx.acct_dn = None
 957     ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
 958     ctx.trustdom_pass = samba.generate_random_password(128, 128)
 959
 960     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
 961
 962     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
 963     ctx.secure_channel_type = misc.SEC_CHAN_BDC
 964
 965     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
 966                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
 967                          drsuapi.DRSUAPI_DRS_PER_SYNC |
 968                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
 969                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
 970     ctx.domain_replica_flags = ctx.replica_flags
 971
 972     ctx.do_join()
 973     print "Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)