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, 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             machinepass=None):
  53         ctx.creds = creds
  54         ctx.lp = lp
  55         ctx.site = site
  56         ctx.netbios_name = netbios_name
  57         ctx.targetdir = targetdir
  58
  59         ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
  60         ctx.net = Net(creds=ctx.creds, lp=ctx.lp)
  61
  62         if server is not None:
  63             ctx.server = server
  64         else:
  65             print("Finding a writeable DC for domain '%s'" % domain)
  66             ctx.server = ctx.find_dc(domain)
  67             print("Found DC %s" % ctx.server)
  68
  69         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
  70                           session_info=system_session(),
  71                           credentials=ctx.creds, lp=ctx.lp)
  72
  73         try:
  74             ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
  75         except ldb.LdbError, (enum, estr):
  76             raise DCJoinException(estr)
  77
  78
  79         ctx.myname = netbios_name
  80         ctx.samname = "%s$" % ctx.myname
  81         ctx.base_dn = str(ctx.samdb.get_default_basedn())
  82         ctx.root_dn = str(ctx.samdb.get_root_basedn())
  83         ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
  84         ctx.config_dn = str(ctx.samdb.get_config_basedn())
  85         ctx.domsid = ctx.samdb.get_domain_sid()
  86         ctx.domain_name = ctx.get_domain_name()
  87         ctx.forest_domain_name = ctx.get_forest_domain_name()
  88         ctx.invocation_id = misc.GUID(str(uuid.uuid4()))
  89
  90         ctx.dc_ntds_dn = ctx.samdb.get_dsServiceName()
  91         ctx.dc_dnsHostName = ctx.get_dnsHostName()
  92         ctx.behavior_version = ctx.get_behavior_version()
  93
  94         if machinepass is not None:
  95             ctx.acct_pass = machinepass
  96         else:
  97             ctx.acct_pass = samba.generate_random_password(32, 40)
  98
  99         # work out the DNs of all the objects we will be adding
 100         ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
 101         ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
 102         topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
 103         if ctx.dn_exists(topology_base):
 104             ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
 105         else:
 106             ctx.topology_dn = None
 107
 108         ctx.dnsdomain = ctx.samdb.domain_dns_name()
 109         ctx.dnsforest = ctx.samdb.forest_dns_name()
 110         ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
 111
 112         ctx.realm = ctx.dnsdomain
 113
 114         ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)
 115
 116         ctx.tmp_samdb = None
 117
 118         ctx.SPNs = [ "HOST/%s" % ctx.myname,
 119                      "HOST/%s" % ctx.dnshostname,
 120                      "GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest) ]
 121
 122         # these elements are optional
 123         ctx.never_reveal_sid = None
 124         ctx.reveal_sid = None
 125         ctx.connection_dn = None
 126         ctx.RODC = False
 127         ctx.krbtgt_dn = None
 128         ctx.drsuapi = None
 129         ctx.managedby = None
 130         ctx.subdomain = False
 131
 132     def del_noerror(ctx, dn, recursive=False):
 133         if recursive:
 134             try:
 135                 res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
 136             except Exception:
 137                 return
 138             for r in res:
 139                 ctx.del_noerror(r.dn, recursive=True)
 140         try:
 141             ctx.samdb.delete(dn)
 142             print "Deleted %s" % dn
 143         except Exception:
 144             pass
 145
 146     def cleanup_old_join(ctx):
 147         '''remove any DNs from a previous join'''
 148         try:
 149             # find the krbtgt link
 150             print("checking sAMAccountName")
 151             if ctx.subdomain:
 152                 res = None
 153             else:
 154                 res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 155                                        expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
 156                                        attrs=["msDS-krbTgtLink"])
 157                 if res:
 158                     ctx.del_noerror(res[0].dn, recursive=True)
 159             if ctx.connection_dn is not None:
 160                 ctx.del_noerror(ctx.connection_dn)
 161             if ctx.krbtgt_dn is not None:
 162                 ctx.del_noerror(ctx.krbtgt_dn)
 163             ctx.del_noerror(ctx.ntds_dn)
 164             ctx.del_noerror(ctx.server_dn, recursive=True)
 165             if ctx.topology_dn:
 166                 ctx.del_noerror(ctx.topology_dn)
 167             if ctx.partition_dn:
 168                 ctx.del_noerror(ctx.partition_dn)
 169             if res:
 170                 ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
 171                 ctx.del_noerror(ctx.new_krbtgt_dn)
 172
 173             if ctx.subdomain:
 174                 binding_options = "sign"
 175                 lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 176                                      ctx.lp, ctx.creds)
 177
 178                 objectAttr = lsa.ObjectAttribute()
 179                 objectAttr.sec_qos = lsa.QosInfo()
 180
 181                 pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 182                                                  objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 183
 184                 name = lsa.String()
 185                 name.string = ctx.realm
 186                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 187
 188                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 189
 190                 name = lsa.String()
 191                 name.string = ctx.forest_domain_name
 192                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 193
 194                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 195
 196         except Exception:
 197             pass
 198
 199     def find_dc(ctx, domain):
 200         '''find a writeable DC for the given domain'''
 201         try:
 202             ctx.cldap_ret = ctx.net.finddc(domain=domain, flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
 203         except Exception:
 204             raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
 205         if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
 206             ctx.site = ctx.cldap_ret.client_site
 207         return ctx.cldap_ret.pdc_dns_name
 208
 209
 210     def get_behavior_version(ctx):
 211         res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 212         if "msDS-Behavior-Version" in res[0]:
 213             return int(res[0]["msDS-Behavior-Version"][0])
 214         else:
 215             return samba.dsdb.DS_DOMAIN_FUNCTION_2000
 216
 217     def get_dnsHostName(ctx):
 218         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
 219         return res[0]["dnsHostName"][0]
 220
 221     def get_domain_name(ctx):
 222         '''get netbios name of the domain from the partitions record'''
 223         partitions_dn = ctx.samdb.get_partitions_dn()
 224         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 225                                expression='ncName=%s' % ctx.samdb.get_default_basedn())
 226         return res[0]["nETBIOSName"][0]
 227
 228     def get_forest_domain_name(ctx):
 229         '''get netbios name of the domain from the partitions record'''
 230         partitions_dn = ctx.samdb.get_partitions_dn()
 231         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 232                                expression='ncName=%s' % ctx.samdb.get_root_basedn())
 233         return res[0]["nETBIOSName"][0]
 234
 235     def get_parent_partition_dn(ctx):
 236         '''get the parent domain partition DN from parent DNS name'''
 237         res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
 238                                expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
 239                                (ctx.parent_dnsdomain, ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
 240         return str(res[0].dn)
 241
 242     def get_naming_master(ctx):
 243         '''get the parent domain partition DN from parent DNS name'''
 244         res = ctx.samdb.search(base='CN=Partitions,%s' % ctx.config_dn, attrs=['fSMORoleOwner'],
 245                                scope=ldb.SCOPE_BASE, controls=["extended_dn:1:1"])
 246         if not 'fSMORoleOwner' in res[0]:
 247             raise DCJoinException("Can't find naming master on partition DN %s" % ctx.partition_dn)
 248         master_guid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['fSMORoleOwner'][0]).get_extended_component('GUID')))
 249         master_host = '%s._msdcs.%s' % (master_guid, ctx.dnsforest)
 250         return master_host
 251
 252     def get_mysid(ctx):
 253         '''get the SID of the connected user. Only works with w2k8 and later,
 254            so only used for RODC join'''
 255         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
 256         binsid = res[0]["tokenGroups"][0]
 257         return ctx.samdb.schema_format_value("objectSID", binsid)
 258
 259     def dn_exists(ctx, dn):
 260         '''check if a DN exists'''
 261         try:
 262             res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
 263         except ldb.LdbError, (enum, estr):
 264             if enum == ldb.ERR_NO_SUCH_OBJECT:
 265                 return False
 266             raise
 267         return True
 268
 269     def add_krbtgt_account(ctx):
 270         '''RODCs need a special krbtgt account'''
 271         print "Adding %s" % ctx.krbtgt_dn
 272         rec = {
 273             "dn" : ctx.krbtgt_dn,
 274             "objectclass" : "user",
 275             "useraccountcontrol" : str(samba.dsdb.UF_NORMAL_ACCOUNT |
 276                                        samba.dsdb.UF_ACCOUNTDISABLE),
 277             "showinadvancedviewonly" : "TRUE",
 278             "description" : "krbtgt for %s" % ctx.samname}
 279         ctx.samdb.add(rec, ["rodc_join:1:1"])
 280
 281         # now we need to search for the samAccountName attribute on the krbtgt DN,
 282         # as this will have been magically set to the krbtgt number
 283         res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
 284         ctx.krbtgt_name = res[0]["samAccountName"][0]
 285
 286         print "Got krbtgt_name=%s" % ctx.krbtgt_name
 287
 288         m = ldb.Message()
 289         m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 290         m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
 291                                                   ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
 292         ctx.samdb.modify(m)
 293
 294         ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
 295         print "Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 296         ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 297
 298     def drsuapi_connect(ctx):
 299         '''make a DRSUAPI connection to the naming master'''
 300         binding_options = "seal"
 301         if int(ctx.lp.get("log level")) >= 4:
 302             binding_options += ",print"
 303         binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
 304         ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
 305         (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)
 306
 307     def create_tmp_samdb(ctx):
 308         '''create a temporary samdb object for schema queries'''
 309         ctx.tmp_schema = Schema(security.dom_sid(ctx.domsid),
 310                                 schemadn=ctx.schema_dn)
 311         ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
 312                               credentials=ctx.creds, lp=ctx.lp, global_schema=False,
 313                               am_rodc=False)
 314         ctx.tmp_samdb.set_schema(ctx.tmp_schema)
 315
 316     def build_DsReplicaAttribute(ctx, attrname, attrvalue):
 317         '''build a DsReplicaAttributeCtr object'''
 318         r = drsuapi.DsReplicaAttribute()
 319         r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
 320         r.value_ctr = 1
 321
 322
 323     def DsAddEntry(ctx, recs):
 324         '''add a record via the DRSUAPI DsAddEntry call'''
 325         if ctx.drsuapi is None:
 326             ctx.drsuapi_connect()
 327         if ctx.tmp_samdb is None:
 328             ctx.create_tmp_samdb()
 329
 330         objects = []
 331         for rec in recs:
 332             id = drsuapi.DsReplicaObjectIdentifier()
 333             id.dn = rec['dn']
 334
 335             attrs = []
 336             for a in rec:
 337                 if a == 'dn':
 338                     continue
 339                 if not isinstance(rec[a], list):
 340                     v = [rec[a]]
 341                 else:
 342                     v = rec[a]
 343                 rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
 344                 attrs.append(rattr)
 345
 346             attribute_ctr = drsuapi.DsReplicaAttributeCtr()
 347             attribute_ctr.num_attributes = len(attrs)
 348             attribute_ctr.attributes = attrs
 349
 350             object = drsuapi.DsReplicaObject()
 351             object.identifier = id
 352             object.attribute_ctr = attribute_ctr
 353
 354             list_object = drsuapi.DsReplicaObjectListItem()
 355             list_object.object = object
 356             objects.append(list_object)
 357
 358         req2 = drsuapi.DsAddEntryRequest2()
 359         req2.first_object = objects[0]
 360         prev = req2.first_object
 361         for o in objects[1:]:
 362             prev.next_object = o
 363             prev = o
 364
 365         (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
 366         if level == 2:
 367             if ctr.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 368                 print("DsAddEntry failed with dir_err %u" % ctr.dir_err)
 369                 raise RuntimeError("DsAddEntry failed")
 370             if ctr.extended_err != (0, 'WERR_OK'):
 371                 print("DsAddEntry failed with status %s info %s" % (ctr.extended_err))
 372                 raise RuntimeError("DsAddEntry failed")
 373         if level == 3:
 374             if ctr.err_ver != 1:
 375                 raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
 376             if ctr.err_data.status != (0, 'WERR_OK'):
 377                 print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
 378                                                                     ctr.err_data.info.extended_err))
 379                 raise RuntimeError("DsAddEntry failed")
 380             if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 381                 print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
 382                 raise RuntimeError("DsAddEntry failed")
 383
 384         return ctr.objects
 385
 386     def join_add_ntdsdsa(ctx):
 387         '''add the ntdsdsa object'''
 388         # FIXME: the partition (NC) assignment has to be made dynamic
 389         print "Adding %s" % ctx.ntds_dn
 390         rec = {
 391             "dn" : ctx.ntds_dn,
 392             "objectclass" : "nTDSDSA",
 393             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 394             "dMDLocation" : ctx.schema_dn}
 395
 396         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 397
 398         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 399             rec["msDS-Behavior-Version"] = str(samba.dsdb.DS_DOMAIN_FUNCTION_2008_R2)
 400
 401         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 402             rec["msDS-HasDomainNCs"] = ctx.base_dn
 403
 404         if ctx.RODC:
 405             rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
 406             rec["msDS-HasFullReplicaNCs"] = nc_list
 407             rec["options"] = "37"
 408             ctx.samdb.add(rec, ["rodc_join:1:1"])
 409         else:
 410             rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 411             rec["HasMasterNCs"]      = nc_list
 412             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 413                 rec["msDS-HasMasterNCs"] = nc_list
 414             rec["options"] = "1"
 415             rec["invocationId"] = ndr_pack(ctx.invocation_id)
 416             ctx.DsAddEntry([rec])
 417
 418         # find the GUID of our NTDS DN
 419         res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
 420         ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))
 421
 422     def join_add_objects(ctx):
 423         '''add the various objects needed for the join'''
 424         if ctx.acct_dn:
 425             print "Adding %s" % ctx.acct_dn
 426             rec = {
 427                 "dn" : ctx.acct_dn,
 428                 "objectClass": "computer",
 429                 "displayname": ctx.samname,
 430                 "samaccountname" : ctx.samname,
 431                 "userAccountControl" : str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
 432                 "dnshostname" : ctx.dnshostname}
 433             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
 434                 rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
 435             if ctx.managedby:
 436                 rec["managedby"] = ctx.managedby
 437             if ctx.never_reveal_sid:
 438                 rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
 439             if ctx.reveal_sid:
 440                 rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
 441             ctx.samdb.add(rec)
 442
 443         if ctx.krbtgt_dn:
 444             ctx.add_krbtgt_account()
 445
 446         print "Adding %s" % ctx.server_dn
 447         rec = {
 448             "dn": ctx.server_dn,
 449             "objectclass" : "server",
 450             # windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
 451             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
 452                                 samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
 453                                 samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 454             # windows seems to add the dnsHostName later
 455             "dnsHostName" : ctx.dnshostname}
 456
 457         if ctx.acct_dn:
 458             rec["serverReference"] = ctx.acct_dn
 459
 460         ctx.samdb.add(rec)
 461
 462         if ctx.subdomain:
 463             # the rest is done after replication
 464             ctx.ntds_guid = None
 465             return
 466
 467         ctx.join_add_ntdsdsa()
 468
 469         if ctx.connection_dn is not None:
 470             print "Adding %s" % ctx.connection_dn
 471             rec = {
 472                 "dn" : ctx.connection_dn,
 473                 "objectclass" : "nTDSConnection",
 474                 "enabledconnection" : "TRUE",
 475                 "options" : "65",
 476                 "fromServer" : ctx.dc_ntds_dn}
 477             ctx.samdb.add(rec)
 478
 479         if ctx.acct_dn:
 480             print "Adding SPNs to %s" % ctx.acct_dn
 481             m = ldb.Message()
 482             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 483             for i in range(len(ctx.SPNs)):
 484                 ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
 485             m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
 486                                                            ldb.FLAG_MOD_ADD,
 487                                                            "servicePrincipalName")
 488             ctx.samdb.modify(m)
 489
 490             # The account password set operation should normally be done over
 491             # LDAP. Windows 2000 DCs however allow this only with SSL
 492             # connections which are hard to set up and otherwise refuse with
 493             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 494             # over SAMR.
 495             print "Setting account password for %s" % ctx.samname
 496             try:
 497                 ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))"
 498                                       % ldb.binary_encode(ctx.samname),
 499                                       ctx.acct_pass,
 500                                       force_change_at_next_login=False,
 501                                       username=ctx.samname)
 502             except ldb.LdbError, (num, _):
 503                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 504                     pass
 505                 ctx.net.set_password(account_name=ctx.samname,
 506                                      domain_name=ctx.domain_name,
 507                                      newpassword=ctx.acct_pass)
 508
 509             res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE,
 510                                    attrs=["msDS-KeyVersionNumber"])
 511             if "msDS-KeyVersionNumber" in res[0]:
 512                 ctx.key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 513             else:
 514                 ctx.key_version_number = None
 515
 516             print("Enabling account")
 517             m = ldb.Message()
 518             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 519             m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
 520                                                          ldb.FLAG_MOD_REPLACE,
 521                                                          "userAccountControl")
 522             ctx.samdb.modify(m)
 523
 524     def join_add_objects2(ctx):
 525         '''add the various objects needed for the join, for subdomains post replication'''
 526
 527         print "Adding %s" % ctx.partition_dn
 528         # NOTE: windows sends a ntSecurityDescriptor here, we
 529         # let it default
 530         rec = {
 531             "dn" : ctx.partition_dn,
 532             "objectclass" : "crossRef",
 533             "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
 534             "nCName" : ctx.base_dn,
 535             "nETBIOSName" : ctx.domain_name,
 536             "dnsRoot": ctx.dnsdomain,
 537             "trustParent" : ctx.parent_partition_dn,
 538             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN)}
 539         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 540             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 541
 542         rec2 = {
 543             "dn" : ctx.ntds_dn,
 544             "objectclass" : "nTDSDSA",
 545             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 546             "dMDLocation" : ctx.schema_dn}
 547
 548         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 549
 550         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 551             rec2["msDS-Behavior-Version"] = str(ctx.behavior_version)
 552
 553         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 554             rec2["msDS-HasDomainNCs"] = ctx.base_dn
 555
 556         rec2["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 557         rec2["HasMasterNCs"]      = nc_list
 558         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 559             rec2["msDS-HasMasterNCs"] = nc_list
 560         rec2["options"] = "1"
 561         rec2["invocationId"] = ndr_pack(ctx.invocation_id)
 562
 563         objects = ctx.DsAddEntry([rec, rec2])
 564         if len(objects) != 2:
 565             raise DCJoinException("Expected 2 objects from DsAddEntry")
 566
 567         ctx.ntds_guid = objects[1].guid
 568
 569         print("Replicating partition DN")
 570         ctx.repl.replicate(ctx.partition_dn,
 571                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 572                            ctx.ntds_guid,
 573                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 574                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 575
 576         print("Replicating NTDS DN")
 577         ctx.repl.replicate(ctx.ntds_dn,
 578                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 579                            ctx.ntds_guid,
 580                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 581                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 582
 583     def join_provision(ctx):
 584         '''provision the local SAM'''
 585
 586         print "Calling bare provision"
 587
 588         logger = logging.getLogger("provision")
 589         logger.addHandler(logging.StreamHandler(sys.stdout))
 590         smbconf = ctx.lp.configfile
 591
 592         presult = provision(logger, system_session(), None,
 593                             smbconf=smbconf, targetdir=ctx.targetdir, samdb_fill=FILL_DRS,
 594                             realm=ctx.realm, rootdn=ctx.root_dn, domaindn=ctx.base_dn,
 595                             schemadn=ctx.schema_dn,
 596                             configdn=ctx.config_dn,
 597                             serverdn=ctx.server_dn, domain=ctx.domain_name,
 598                             hostname=ctx.myname, domainsid=ctx.domsid,
 599                             machinepass=ctx.acct_pass, serverrole="domain controller",
 600                             sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
 601                             dns_backend="NONE")
 602         print "Provision OK for domain DN %s" % presult.domaindn
 603         ctx.local_samdb = presult.samdb
 604         ctx.lp          = presult.lp
 605         ctx.paths       = presult.paths
 606         ctx.names       = presult.names
 607
 608     def join_provision_own_domain(ctx):
 609         '''provision the local SAM'''
 610
 611         # we now operate exclusively on the local database, which
 612         # we need to reopen in order to get the newly created schema
 613         print("Reconnecting to local samdb")
 614         ctx.samdb = SamDB(url=ctx.local_samdb.url,
 615                           session_info=system_session(),
 616                           lp=ctx.local_samdb.lp,
 617                           global_schema=False)
 618         ctx.samdb.set_invocation_id(str(ctx.invocation_id))
 619         ctx.local_samdb = ctx.samdb
 620
 621         print("Finding domain GUID from ncName")
 622         res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
 623                                      controls=["extended_dn:1:1"])
 624         domguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
 625         print("Got domain GUID %s" % domguid)
 626
 627         print("Calling own domain provision")
 628
 629         logger = logging.getLogger("provision")
 630         logger.addHandler(logging.StreamHandler(sys.stdout))
 631
 632         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 633
 634         presult = provision_fill(ctx.local_samdb, secrets_ldb,
 635                                  logger, ctx.names, ctx.paths, domainsid=security.dom_sid(ctx.domsid),
 636                                  domainguid=domguid,
 637                                  targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
 638                                  machinepass=ctx.acct_pass, serverrole="domain controller",
 639                                  lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
 640                                  dns_backend="BIND9_DLZ")
 641         print("Provision OK for domain %s" % ctx.names.dnsdomain)
 642
 643     def join_replicate(ctx):
 644         '''replicate the SAM'''
 645
 646         print "Starting replication"
 647         ctx.local_samdb.transaction_start()
 648         try:
 649             source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
 650             if ctx.ntds_guid is None:
 651                 print("Using DS_BIND_GUID_W2K3")
 652                 destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
 653             else:
 654                 destination_dsa_guid = ctx.ntds_guid
 655
 656             if ctx.RODC:
 657                 repl_creds = Credentials()
 658                 repl_creds.guess(ctx.lp)
 659                 repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
 660                 repl_creds.set_username(ctx.samname)
 661                 repl_creds.set_password(ctx.acct_pass)
 662             else:
 663                 repl_creds = ctx.creds
 664
 665             binding_options = "seal"
 666             if int(ctx.lp.get("log level")) >= 5:
 667                 binding_options += ",print"
 668             repl = drs_utils.drs_Replicate(
 669                 "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 670                 ctx.lp, repl_creds, ctx.local_samdb)
 671
 672             repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
 673                     destination_dsa_guid, schema=True, rodc=ctx.RODC,
 674                     replica_flags=ctx.replica_flags)
 675             repl.replicate(ctx.config_dn, source_dsa_invocation_id,
 676                     destination_dsa_guid, rodc=ctx.RODC,
 677                     replica_flags=ctx.replica_flags)
 678             if not ctx.subdomain:
 679                 # Replicate first the critical object for the basedn
 680                 if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
 681                     print "Replicating critical objects from the base DN of the domain"
 682                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 683                     repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 684                                 destination_dsa_guid, rodc=ctx.RODC,
 685                                 replica_flags=ctx.domain_replica_flags)
 686                     ctx.domain_replica_flags ^= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 687                 else:
 688                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_GET_ANC
 689                 repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 690                                destination_dsa_guid, rodc=ctx.RODC,
 691                                replica_flags=ctx.domain_replica_flags)
 692             if ctx.RODC:
 693                 repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
 694                         destination_dsa_guid,
 695                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 696                 repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
 697                         destination_dsa_guid,
 698                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 699             ctx.repl = repl
 700             ctx.source_dsa_invocation_id = source_dsa_invocation_id
 701             ctx.destination_dsa_guid = destination_dsa_guid
 702
 703             print "Committing SAM database"
 704         except:
 705             ctx.local_samdb.transaction_cancel()
 706             raise
 707         else:
 708             ctx.local_samdb.transaction_commit()
 709
 710     def send_DsReplicaUpdateRefs(ctx, dn):
 711         r = drsuapi.DsReplicaUpdateRefsRequest1()
 712         r.naming_context = drsuapi.DsReplicaObjectIdentifier()
 713         r.naming_context.dn = str(dn)
 714         r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
 715         r.naming_context.sid = security.dom_sid("S-0-0")
 716         r.dest_dsa_guid = ctx.ntds_guid
 717         r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
 718         r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
 719         if not ctx.RODC:
 720             r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
 721
 722         if ctx.drsuapi:
 723             ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
 724
 725     def join_finalise(ctx):
 726         '''finalise the join, mark us synchronised and setup secrets db'''
 727
 728         print "Sending DsReplicateUpdateRefs for all the partitions"
 729         ctx.send_DsReplicaUpdateRefs(ctx.schema_dn)
 730         ctx.send_DsReplicaUpdateRefs(ctx.config_dn)
 731         ctx.send_DsReplicaUpdateRefs(ctx.base_dn)
 732
 733         print "Setting isSynchronized and dsServiceName"
 734         m = ldb.Message()
 735         m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
 736         m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
 737         m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
 738                                                 ldb.FLAG_MOD_REPLACE, "dsServiceName")
 739         ctx.local_samdb.modify(m)
 740
 741         if ctx.subdomain:
 742             return
 743
 744         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 745
 746         print "Setting up secrets database"
 747         secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
 748                             realm=ctx.realm,
 749                             dnsdomain=ctx.dnsdomain,
 750                             netbiosname=ctx.myname,
 751                             domainsid=security.dom_sid(ctx.domsid),
 752                             machinepass=ctx.acct_pass,
 753                             secure_channel_type=ctx.secure_channel_type,
 754                             key_version_number=ctx.key_version_number)
 755
 756     def join_setup_trusts(ctx):
 757         '''provision the local SAM'''
 758
 759         def arcfour_encrypt(key, data):
 760             from Crypto.Cipher import ARC4
 761             c = ARC4.new(key)
 762             return c.encrypt(data)
 763
 764         def string_to_array(string):
 765             blob = [0] * len(string)
 766
 767             for i in range(len(string)):
 768                 blob[i] = ord(string[i])
 769
 770             return blob
 771
 772         print "Setup domain trusts with server %s" % ctx.server
 773         binding_options = ""  # why doesn't signing work here? w2k8r2 claims no session key
 774         lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
 775                              ctx.lp, ctx.creds)
 776
 777         objectAttr = lsa.ObjectAttribute()
 778         objectAttr.sec_qos = lsa.QosInfo()
 779
 780         pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 781                                          objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 782
 783         info = lsa.TrustDomainInfoInfoEx()
 784         info.domain_name.string = ctx.dnsdomain
 785         info.netbios_name.string = ctx.domain_name
 786         info.sid = security.dom_sid(ctx.domsid)
 787         info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
 788         info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
 789         info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
 790
 791         try:
 792             oldname = lsa.String()
 793             oldname.string = ctx.dnsdomain
 794             oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
 795                                                            lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 796             print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
 797             lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
 798         except RuntimeError:
 799             pass
 800
 801         password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))
 802
 803         clear_value = drsblobs.AuthInfoClear()
 804         clear_value.size = len(password_blob)
 805         clear_value.password = password_blob
 806
 807         clear_authentication_information = drsblobs.AuthenticationInformation()
 808         clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
 809         clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
 810         clear_authentication_information.AuthInfo = clear_value
 811
 812         authentication_information_array = drsblobs.AuthenticationInformationArray()
 813         authentication_information_array.count = 1
 814         authentication_information_array.array = [clear_authentication_information]
 815
 816         outgoing = drsblobs.trustAuthInOutBlob()
 817         outgoing.count = 1
 818         outgoing.current = authentication_information_array
 819
 820         trustpass = drsblobs.trustDomainPasswords()
 821         confounder = [3] * 512
 822
 823         for i in range(512):
 824             confounder[i] = random.randint(0, 255)
 825
 826         trustpass.confounder = confounder
 827
 828         trustpass.outgoing = outgoing
 829         trustpass.incoming = outgoing
 830
 831         trustpass_blob = ndr_pack(trustpass)
 832
 833         encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
 834
 835         auth_blob = lsa.DATA_BUF2()
 836         auth_blob.size = len(encrypted_trustpass)
 837         auth_blob.data = string_to_array(encrypted_trustpass)
 838
 839         auth_info = lsa.TrustDomainInfoAuthInfoInternal()
 840         auth_info.auth_blob = auth_blob
 841
 842         trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
 843                                                          info,
 844                                                          auth_info,
 845                                                          security.SEC_STD_DELETE)
 846
 847         rec = {
 848             "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
 849             "objectclass" : "trustedDomain",
 850             "trustType" : str(info.trust_type),
 851             "trustAttributes" : str(info.trust_attributes),
 852             "trustDirection" : str(info.trust_direction),
 853             "flatname" : ctx.forest_domain_name,
 854             "trustPartner" : ctx.dnsforest,
 855             "trustAuthIncoming" : ndr_pack(outgoing),
 856             "trustAuthOutgoing" : ndr_pack(outgoing)
 857             }
 858         ctx.local_samdb.add(rec)
 859
 860         rec = {
 861             "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
 862             "objectclass" : "user",
 863             "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
 864             "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le')
 865             }
 866         ctx.local_samdb.add(rec)
 867
 868
 869     def do_join(ctx):
 870         ctx.cleanup_old_join()
 871         try:
 872             ctx.join_add_objects()
 873             ctx.join_provision()
 874             ctx.join_replicate()
 875             if ctx.subdomain:
 876                 ctx.join_add_objects2()
 877                 ctx.join_provision_own_domain()
 878                 ctx.join_setup_trusts()
 879             ctx.join_finalise()
 880         except:
 881             print "Join failed - cleaning up"
 882             ctx.cleanup_old_join()
 883             raise
 884
 885
 886 def join_RODC(server=None, creds=None, lp=None, site=None, netbios_name=None,
 887               targetdir=None, domain=None, domain_critical_only=False,
 888               machinepass=None):
 889     """join as a RODC"""
 890
 891     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
 892                   machinepass)
 893
 894     lp.set("workgroup", ctx.domain_name)
 895     print("workgroup is %s" % ctx.domain_name)
 896
 897     lp.set("realm", ctx.realm)
 898     print("realm is %s" % ctx.realm)
 899
 900     ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
 901
 902     # setup some defaults for accounts that should be replicated to this RODC
 903     ctx.never_reveal_sid = [ "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
 904                              "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
 905                              "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
 906                              "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
 907                              "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS ]
 908     ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
 909
 910     mysid = ctx.get_mysid()
 911     admin_dn = "<SID=%s>" % mysid
 912     ctx.managedby = admin_dn
 913
 914     ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
 915                               samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
 916                               samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
 917
 918     ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
 919                       "RestrictedKrbHost/%s" % ctx.dnshostname ])
 920
 921     ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
 922     ctx.secure_channel_type = misc.SEC_CHAN_RODC
 923     ctx.RODC = True
 924     ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
 925                            drsuapi.DRSUAPI_DRS_PER_SYNC |
 926                            drsuapi.DRSUAPI_DRS_GET_ANC |
 927                            drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
 928                            drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
 929                            drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
 930     ctx.domain_replica_flags = ctx.replica_flags
 931     if domain_critical_only:
 932         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
 933
 934     ctx.do_join()
 935
 936
 937     print "Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid)
 938
 939
 940 def join_DC(server=None, creds=None, lp=None, site=None, netbios_name=None,
 941             targetdir=None, domain=None, domain_critical_only=False,
 942             machinepass=None):
 943     """join as a DC"""
 944     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
 945                   machinepass)
 946
 947     lp.set("workgroup", ctx.domain_name)
 948     print("workgroup is %s" % ctx.domain_name)
 949
 950     lp.set("realm", ctx.realm)
 951     print("realm is %s" % ctx.realm)
 952
 953     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
 954
 955     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
 956     ctx.secure_channel_type = misc.SEC_CHAN_BDC
 957
 958     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
 959                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
 960                          drsuapi.DRSUAPI_DRS_PER_SYNC |
 961                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
 962                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
 963     ctx.domain_replica_flags = ctx.replica_flags
 964     if domain_critical_only:
 965         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
 966
 967     ctx.do_join()
 968     print "Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)
 969
 970 def join_subdomain(server=None, creds=None, lp=None, site=None, netbios_name=None,
 971                    targetdir=None, parent_domain=None, dnsdomain=None, netbios_domain=None,
 972                    machinepass=None):
 973     """join as a DC"""
 974     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, parent_domain,
 975                   machinepass)
 976     ctx.subdomain = True
 977     ctx.parent_domain_name = ctx.domain_name
 978     ctx.domain_name = netbios_domain
 979     ctx.realm = dnsdomain
 980     ctx.parent_dnsdomain = ctx.dnsdomain
 981     ctx.parent_partition_dn = ctx.get_parent_partition_dn()
 982     ctx.dnsdomain = dnsdomain
 983     ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
 984     ctx.naming_master = ctx.get_naming_master()
 985     if ctx.naming_master != ctx.server:
 986         print("Reconnecting to naming master %s" % ctx.naming_master)
 987         ctx.server = ctx.naming_master
 988         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
 989                           session_info=system_session(),
 990                           credentials=ctx.creds, lp=ctx.lp)
 991
 992     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
 993     ctx.domsid = str(security.random_sid())
 994     ctx.acct_dn = None
 995     ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
 996     ctx.trustdom_pass = samba.generate_random_password(128, 128)
 997
 998     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
 999
1000     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1001     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1002
1003     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1004                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1005                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1006                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1007                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1008     ctx.domain_replica_flags = ctx.replica_flags
1009
1010     ctx.do_join()
1011     print "Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)