python/samba/join.py

   1 # python join code
   2 # Copyright Andrew Tridgell 2010
   3 # Copyright Andrew Bartlett 2010
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 """Joining a domain."""
  20
  21 from samba.auth import system_session
  22 from samba.samdb import SamDB
  23 from samba import gensec, Ldb, drs_utils, arcfour_encrypt, string_to_byte_array
  24 import ldb, samba, sys, uuid
  25 from samba.ndr import ndr_pack
  26 from samba.dcerpc import security, drsuapi, misc, nbt, lsa, drsblobs
  27 from samba.dsdb import DS_DOMAIN_FUNCTION_2003
  28 from samba.credentials import Credentials, DONT_USE_KERBEROS
  29 from samba.provision import secretsdb_self_join, provision, provision_fill, FILL_DRS, FILL_SUBDOMAIN
  30 from samba.provision.common import setup_path
  31 from samba.schema import Schema
  32 from samba import descriptor
  33 from samba.net import Net
  34 from samba.provision.sambadns import setup_bind9_dns
  35 from samba import read_and_sub_file
  36 from base64 import b64encode
  37 import logging
  38 import talloc
  39 import random
  40 import time
  41
  42 class DCJoinException(Exception):
  43
  44     def __init__(self, msg):
  45         super(DCJoinException, self).__init__("Can't join, error: %s" % msg)
  46
  47
  48 class dc_join(object):
  49     """Perform a DC join."""
  50
  51     def __init__(ctx, logger=None, server=None, creds=None, lp=None, site=None,
  52                  netbios_name=None, targetdir=None, domain=None,
  53                  machinepass=None, use_ntvfs=False, dns_backend=None,
  54                  promote_existing=False, clone_only=False):
  55         ctx.clone_only=clone_only
  56
  57         ctx.logger = logger
  58         ctx.creds = creds
  59         ctx.lp = lp
  60         ctx.site = site
  61         ctx.targetdir = targetdir
  62         ctx.use_ntvfs = use_ntvfs
  63
  64         ctx.promote_existing = promote_existing
  65         ctx.promote_from_dn = None
  66
  67         ctx.nc_list = []
  68         ctx.full_nc_list = []
  69
  70         ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
  71         ctx.net = Net(creds=ctx.creds, lp=ctx.lp)
  72
  73         if server is not None:
  74             ctx.server = server
  75         else:
  76             ctx.logger.info("Finding a writeable DC for domain '%s'" % domain)
  77             ctx.server = ctx.find_dc(domain)
  78             ctx.logger.info("Found DC %s" % ctx.server)
  79
  80         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
  81                           session_info=system_session(),
  82                           credentials=ctx.creds, lp=ctx.lp)
  83
  84         try:
  85             ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
  86         except ldb.LdbError, (enum, estr):
  87             raise DCJoinException(estr)
  88
  89
  90         ctx.base_dn = str(ctx.samdb.get_default_basedn())
  91         ctx.root_dn = str(ctx.samdb.get_root_basedn())
  92         ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
  93         ctx.config_dn = str(ctx.samdb.get_config_basedn())
  94         ctx.domsid = security.dom_sid(ctx.samdb.get_domain_sid())
  95         ctx.forestsid = ctx.domsid
  96         ctx.domain_name = ctx.get_domain_name()
  97         ctx.forest_domain_name = ctx.get_forest_domain_name()
  98         ctx.invocation_id = misc.GUID(str(uuid.uuid4()))
  99
 100         ctx.dc_ntds_dn = ctx.samdb.get_dsServiceName()
 101         ctx.dc_dnsHostName = ctx.get_dnsHostName()
 102         ctx.behavior_version = ctx.get_behavior_version()
 103
 104         if machinepass is not None:
 105             ctx.acct_pass = machinepass
 106         else:
 107             ctx.acct_pass = samba.generate_random_password(32, 40)
 108
 109         ctx.dnsdomain = ctx.samdb.domain_dns_name()
 110         if clone_only:
 111             # As we don't want to create or delete these DNs, we set them to None
 112             ctx.server_dn = None
 113             ctx.ntds_dn = None
 114             ctx.acct_dn = None
 115             ctx.myname = ctx.server.split('.')[0]
 116             ctx.ntds_guid = None
 117
 118             # Save this early
 119             ctx.remote_dc_ntds_guid = ctx.samdb.get_ntds_GUID()
 120         else:
 121             # work out the DNs of all the objects we will be adding
 122             ctx.myname = netbios_name
 123             ctx.samname = "%s$" % ctx.myname
 124             ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
 125             ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
 126             ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)
 127             ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
 128             ctx.dnsforest = ctx.samdb.forest_dns_name()
 129
 130             topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
 131             if ctx.dn_exists(topology_base):
 132                 ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
 133             else:
 134                 ctx.topology_dn = None
 135
 136             ctx.SPNs = [ "HOST/%s" % ctx.myname,
 137                          "HOST/%s" % ctx.dnshostname,
 138                          "GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest) ]
 139
 140         ctx.domaindns_zone = 'DC=DomainDnsZones,%s' % ctx.base_dn
 141         ctx.forestdns_zone = 'DC=ForestDnsZones,%s' % ctx.root_dn
 142
 143         expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.domaindns_zone)
 144         res_domaindns = ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
 145                                          attrs=[],
 146                                          base=ctx.samdb.get_partitions_dn(),
 147                                          expression=expr)
 148         if dns_backend is None:
 149             ctx.dns_backend = "NONE"
 150         else:
 151             if len(res_domaindns) == 0:
 152                 ctx.dns_backend = "NONE"
 153                 print "NO DNS zone information found in source domain, not replicating DNS"
 154             else:
 155                 ctx.dns_backend = dns_backend
 156
 157         ctx.realm = ctx.dnsdomain
 158
 159         ctx.tmp_samdb = None
 160
 161         # these elements are optional
 162         ctx.never_reveal_sid = None
 163         ctx.reveal_sid = None
 164         ctx.connection_dn = None
 165         ctx.RODC = False
 166         ctx.krbtgt_dn = None
 167         ctx.drsuapi = None
 168         ctx.managedby = None
 169         ctx.subdomain = False
 170         ctx.adminpass = None
 171         ctx.partition_dn = None
 172
 173     def del_noerror(ctx, dn, recursive=False):
 174         if recursive:
 175             try:
 176                 res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
 177             except Exception:
 178                 return
 179             for r in res:
 180                 ctx.del_noerror(r.dn, recursive=True)
 181         try:
 182             ctx.samdb.delete(dn)
 183             print "Deleted %s" % dn
 184         except Exception:
 185             pass
 186
 187     def cleanup_old_accounts(ctx):
 188         res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 189                                expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
 190                                attrs=["msDS-krbTgtLink", "objectSID"])
 191         if len(res) == 0:
 192             return
 193
 194         creds = Credentials()
 195         creds.guess(ctx.lp)
 196         try:
 197             creds.set_machine_account(ctx.lp)
 198             machine_samdb = SamDB(url="ldap://%s" % ctx.server,
 199                                   session_info=system_session(),
 200                                 credentials=creds, lp=ctx.lp)
 201         except:
 202             pass
 203         else:
 204             token_res = machine_samdb.search(scope=ldb.SCOPE_BASE, base="", attrs=["tokenGroups"])
 205             if token_res[0]["tokenGroups"][0] \
 206                == res[0]["objectSID"][0]:
 207                 raise DCJoinException("Not removing account %s which "
 208                                    "looks like a Samba DC account "
 209                                    "maching the password we already have.  "
 210                                    "To override, remove secrets.ldb and secrets.tdb"
 211                                 % ctx.samname)
 212
 213         ctx.del_noerror(res[0].dn, recursive=True)
 214
 215         if "msDS-Krbtgtlink" in res[0]:
 216             new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
 217             del_noerror(ctx.new_krbtgt_dn)
 218
 219         res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 220                                expression='(&(sAMAccountName=%s)(servicePrincipalName=%s))' %
 221                                (ldb.binary_encode("dns-%s" % ctx.myname),
 222                                 ldb.binary_encode("dns/%s" % ctx.dnshostname)),
 223                                attrs=[])
 224         if res:
 225             ctx.del_noerror(res[0].dn, recursive=True)
 226
 227         res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 228                                expression='(sAMAccountName=%s)' % ldb.binary_encode("dns-%s" % ctx.myname),
 229                             attrs=[])
 230         if res:
 231             raise DCJoinException("Not removing account %s which looks like "
 232                                "a Samba DNS service account but does not "
 233                                "have servicePrincipalName=%s" %
 234                                (ldb.binary_encode("dns-%s" % ctx.myname),
 235                                 ldb.binary_encode("dns/%s" % ctx.dnshostname)))
 236
 237
 238     def cleanup_old_join(ctx):
 239         """Remove any DNs from a previous join."""
 240         # find the krbtgt link
 241         if not ctx.subdomain:
 242             ctx.cleanup_old_accounts()
 243
 244         if ctx.connection_dn is not None:
 245             ctx.del_noerror(ctx.connection_dn)
 246         if ctx.krbtgt_dn is not None:
 247             ctx.del_noerror(ctx.krbtgt_dn)
 248         ctx.del_noerror(ctx.ntds_dn)
 249         ctx.del_noerror(ctx.server_dn, recursive=True)
 250         if ctx.topology_dn:
 251             ctx.del_noerror(ctx.topology_dn)
 252         if ctx.partition_dn:
 253             ctx.del_noerror(ctx.partition_dn)
 254
 255         if ctx.subdomain:
 256             binding_options = "sign"
 257             lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 258                                  ctx.lp, ctx.creds)
 259
 260             objectAttr = lsa.ObjectAttribute()
 261             objectAttr.sec_qos = lsa.QosInfo()
 262
 263             pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 264                                              objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 265
 266             name = lsa.String()
 267             name.string = ctx.realm
 268             info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 269
 270             lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 271
 272             name = lsa.String()
 273             name.string = ctx.forest_domain_name
 274             info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 275
 276             lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 277
 278
 279     def promote_possible(ctx):
 280         """confirm that the account is just a bare NT4 BDC or a member server, so can be safely promoted"""
 281         if ctx.subdomain:
 282             # This shouldn't happen
 283             raise Exception("Can not promote into a subdomain")
 284
 285         res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 286                                expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
 287                                attrs=["msDS-krbTgtLink", "userAccountControl", "serverReferenceBL", "rIDSetReferences"])
 288         if len(res) == 0:
 289             raise Exception("Could not find domain member account '%s' to promote to a DC, use 'samba-tool domain join' instead'" % ctx.samname)
 290         if "msDS-krbTgtLink" in res[0] or "serverReferenceBL" in res[0] or "rIDSetReferences" in res[0]:
 291             raise Exception("Account '%s' appears to be an active DC, use 'samba-tool domain join' if you must re-create this account" % ctx.samname)
 292         if (int(res[0]["userAccountControl"][0]) & (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT|samba.dsdb.UF_SERVER_TRUST_ACCOUNT) == 0):
 293             raise Exception("Account %s is not a domain member or a bare NT4 BDC, use 'samba-tool domain join' instead'" % ctx.samname)
 294
 295         ctx.promote_from_dn = res[0].dn
 296
 297
 298     def find_dc(ctx, domain):
 299         """find a writeable DC for the given domain"""
 300         try:
 301             ctx.cldap_ret = ctx.net.finddc(domain=domain, flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
 302         except Exception:
 303             raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
 304         if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
 305             ctx.site = ctx.cldap_ret.client_site
 306         return ctx.cldap_ret.pdc_dns_name
 307
 308
 309     def get_behavior_version(ctx):
 310         res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 311         if "msDS-Behavior-Version" in res[0]:
 312             return int(res[0]["msDS-Behavior-Version"][0])
 313         else:
 314             return samba.dsdb.DS_DOMAIN_FUNCTION_2000
 315
 316     def get_dnsHostName(ctx):
 317         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
 318         return res[0]["dnsHostName"][0]
 319
 320     def get_domain_name(ctx):
 321         '''get netbios name of the domain from the partitions record'''
 322         partitions_dn = ctx.samdb.get_partitions_dn()
 323         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 324                                expression='ncName=%s' % ldb.binary_encode(str(ctx.samdb.get_default_basedn())))
 325         return res[0]["nETBIOSName"][0]
 326
 327     def get_forest_domain_name(ctx):
 328         '''get netbios name of the domain from the partitions record'''
 329         partitions_dn = ctx.samdb.get_partitions_dn()
 330         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 331                                expression='ncName=%s' % ldb.binary_encode(str(ctx.samdb.get_root_basedn())))
 332         return res[0]["nETBIOSName"][0]
 333
 334     def get_parent_partition_dn(ctx):
 335         '''get the parent domain partition DN from parent DNS name'''
 336         res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
 337                                expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
 338                                (ldb.binary_encode(ctx.parent_dnsdomain),
 339                                 ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
 340         return str(res[0].dn)
 341
 342     def get_naming_master(ctx):
 343         '''get the parent domain partition DN from parent DNS name'''
 344         res = ctx.samdb.search(base='CN=Partitions,%s' % ctx.config_dn, attrs=['fSMORoleOwner'],
 345                                scope=ldb.SCOPE_BASE, controls=["extended_dn:1:1"])
 346         if not 'fSMORoleOwner' in res[0]:
 347             raise DCJoinException("Can't find naming master on partition DN %s in %s" % (ctx.partition_dn, ctx.samdb.url))
 348         try:
 349             master_guid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['fSMORoleOwner'][0]).get_extended_component('GUID')))
 350         except KeyError:
 351             raise DCJoinException("Can't find GUID in naming master on partition DN %s" % res[0]['fSMORoleOwner'][0])
 352
 353         master_host = '%s._msdcs.%s' % (master_guid, ctx.dnsforest)
 354         return master_host
 355
 356     def get_mysid(ctx):
 357         '''get the SID of the connected user. Only works with w2k8 and later,
 358            so only used for RODC join'''
 359         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
 360         binsid = res[0]["tokenGroups"][0]
 361         return ctx.samdb.schema_format_value("objectSID", binsid)
 362
 363     def dn_exists(ctx, dn):
 364         '''check if a DN exists'''
 365         try:
 366             res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
 367         except ldb.LdbError, (enum, estr):
 368             if enum == ldb.ERR_NO_SUCH_OBJECT:
 369                 return False
 370             raise
 371         return True
 372
 373     def add_krbtgt_account(ctx):
 374         '''RODCs need a special krbtgt account'''
 375         print "Adding %s" % ctx.krbtgt_dn
 376         rec = {
 377             "dn" : ctx.krbtgt_dn,
 378             "objectclass" : "user",
 379             "useraccountcontrol" : str(samba.dsdb.UF_NORMAL_ACCOUNT |
 380                                        samba.dsdb.UF_ACCOUNTDISABLE),
 381             "showinadvancedviewonly" : "TRUE",
 382             "description" : "krbtgt for %s" % ctx.samname}
 383         ctx.samdb.add(rec, ["rodc_join:1:1"])
 384
 385         # now we need to search for the samAccountName attribute on the krbtgt DN,
 386         # as this will have been magically set to the krbtgt number
 387         res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
 388         ctx.krbtgt_name = res[0]["samAccountName"][0]
 389
 390         print "Got krbtgt_name=%s" % ctx.krbtgt_name
 391
 392         m = ldb.Message()
 393         m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 394         m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
 395                                                   ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
 396         ctx.samdb.modify(m)
 397
 398         ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
 399         print "Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 400         ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 401
 402     def drsuapi_connect(ctx):
 403         '''make a DRSUAPI connection to the naming master'''
 404         binding_options = "seal"
 405         if ctx.lp.log_level() >= 4:
 406             binding_options += ",print"
 407         binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
 408         ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
 409         (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)
 410
 411     def create_tmp_samdb(ctx):
 412         '''create a temporary samdb object for schema queries'''
 413         ctx.tmp_schema = Schema(ctx.domsid,
 414                                 schemadn=ctx.schema_dn)
 415         ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
 416                               credentials=ctx.creds, lp=ctx.lp, global_schema=False,
 417                               am_rodc=False)
 418         ctx.tmp_samdb.set_schema(ctx.tmp_schema)
 419
 420     def build_DsReplicaAttribute(ctx, attrname, attrvalue):
 421         '''build a DsReplicaAttributeCtr object'''
 422         r = drsuapi.DsReplicaAttribute()
 423         r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
 424         r.value_ctr = 1
 425
 426
 427     def DsAddEntry(ctx, recs):
 428         '''add a record via the DRSUAPI DsAddEntry call'''
 429         if ctx.drsuapi is None:
 430             ctx.drsuapi_connect()
 431         if ctx.tmp_samdb is None:
 432             ctx.create_tmp_samdb()
 433
 434         objects = []
 435         for rec in recs:
 436             id = drsuapi.DsReplicaObjectIdentifier()
 437             id.dn = rec['dn']
 438
 439             attrs = []
 440             for a in rec:
 441                 if a == 'dn':
 442                     continue
 443                 if not isinstance(rec[a], list):
 444                     v = [rec[a]]
 445                 else:
 446                     v = rec[a]
 447                 rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
 448                 attrs.append(rattr)
 449
 450             attribute_ctr = drsuapi.DsReplicaAttributeCtr()
 451             attribute_ctr.num_attributes = len(attrs)
 452             attribute_ctr.attributes = attrs
 453
 454             object = drsuapi.DsReplicaObject()
 455             object.identifier = id
 456             object.attribute_ctr = attribute_ctr
 457
 458             list_object = drsuapi.DsReplicaObjectListItem()
 459             list_object.object = object
 460             objects.append(list_object)
 461
 462         req2 = drsuapi.DsAddEntryRequest2()
 463         req2.first_object = objects[0]
 464         prev = req2.first_object
 465         for o in objects[1:]:
 466             prev.next_object = o
 467             prev = o
 468
 469         (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
 470         if level == 2:
 471             if ctr.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 472                 print("DsAddEntry failed with dir_err %u" % ctr.dir_err)
 473                 raise RuntimeError("DsAddEntry failed")
 474             if ctr.extended_err != (0, 'WERR_OK'):
 475                 print("DsAddEntry failed with status %s info %s" % (ctr.extended_err))
 476                 raise RuntimeError("DsAddEntry failed")
 477         if level == 3:
 478             if ctr.err_ver != 1:
 479                 raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
 480             if ctr.err_data.status != (0, 'WERR_OK'):
 481                 print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
 482                                                                     ctr.err_data.info.extended_err))
 483                 raise RuntimeError("DsAddEntry failed")
 484             if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 485                 print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
 486                 raise RuntimeError("DsAddEntry failed")
 487
 488         return ctr.objects
 489
 490     def join_ntdsdsa_obj(ctx):
 491         '''return the ntdsdsa object to add'''
 492
 493         print "Adding %s" % ctx.ntds_dn
 494         rec = {
 495             "dn" : ctx.ntds_dn,
 496             "objectclass" : "nTDSDSA",
 497             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 498             "dMDLocation" : ctx.schema_dn}
 499
 500         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 501
 502         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 503             rec["msDS-Behavior-Version"] = str(samba.dsdb.DS_DOMAIN_FUNCTION_2008_R2)
 504
 505         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 506             rec["msDS-HasDomainNCs"] = ctx.base_dn
 507
 508         if ctx.RODC:
 509             rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
 510             rec["msDS-HasFullReplicaNCs"] = ctx.full_nc_list
 511             rec["options"] = "37"
 512         else:
 513             rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 514             rec["HasMasterNCs"]      = []
 515             for nc in nc_list:
 516                 if nc in ctx.full_nc_list:
 517                     rec["HasMasterNCs"].append(nc)
 518             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 519                 rec["msDS-HasMasterNCs"] = ctx.full_nc_list
 520             rec["options"] = "1"
 521             rec["invocationId"] = ndr_pack(ctx.invocation_id)
 522
 523         return rec
 524
 525     def join_add_ntdsdsa(ctx):
 526         '''add the ntdsdsa object'''
 527
 528         rec = ctx.join_ntdsdsa_obj()
 529         if ctx.RODC:
 530             ctx.samdb.add(rec, ["rodc_join:1:1"])
 531         else:
 532             ctx.DsAddEntry([rec])
 533
 534         # find the GUID of our NTDS DN
 535         res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
 536         ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))
 537
 538     def join_add_objects(ctx):
 539         '''add the various objects needed for the join'''
 540         if ctx.acct_dn:
 541             print "Adding %s" % ctx.acct_dn
 542             rec = {
 543                 "dn" : ctx.acct_dn,
 544                 "objectClass": "computer",
 545                 "displayname": ctx.samname,
 546                 "samaccountname" : ctx.samname,
 547                 "userAccountControl" : str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
 548                 "dnshostname" : ctx.dnshostname}
 549             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
 550                 rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
 551             elif ctx.promote_existing:
 552                 rec['msDS-SupportedEncryptionTypes'] = []
 553             if ctx.managedby:
 554                 rec["managedby"] = ctx.managedby
 555             elif ctx.promote_existing:
 556                 rec["managedby"] = []
 557
 558             if ctx.never_reveal_sid:
 559                 rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
 560             elif ctx.promote_existing:
 561                 rec["msDS-NeverRevealGroup"] = []
 562
 563             if ctx.reveal_sid:
 564                 rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
 565             elif ctx.promote_existing:
 566                 rec["msDS-RevealOnDemandGroup"] = []
 567
 568             if ctx.promote_existing:
 569                 if ctx.promote_from_dn != ctx.acct_dn:
 570                     ctx.samdb.rename(ctx.promote_from_dn, ctx.acct_dn)
 571                 ctx.samdb.modify(ldb.Message.from_dict(ctx.samdb, rec, ldb.FLAG_MOD_REPLACE))
 572             else:
 573                 ctx.samdb.add(rec)
 574
 575         if ctx.krbtgt_dn:
 576             ctx.add_krbtgt_account()
 577
 578         if ctx.server_dn:
 579             print "Adding %s" % ctx.server_dn
 580             rec = {
 581                 "dn": ctx.server_dn,
 582                 "objectclass" : "server",
 583                 # windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
 584                 "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
 585                                     samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
 586                                     samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 587                 # windows seems to add the dnsHostName later
 588                 "dnsHostName" : ctx.dnshostname}
 589
 590             if ctx.acct_dn:
 591                 rec["serverReference"] = ctx.acct_dn
 592
 593             ctx.samdb.add(rec)
 594
 595         if ctx.subdomain:
 596             # the rest is done after replication
 597             ctx.ntds_guid = None
 598             return
 599
 600         if ctx.ntds_dn:
 601             ctx.join_add_ntdsdsa()
 602
 603             # Add the Replica-Locations or RO-Replica-Locations attributes
 604             # TODO Is this supposed to be for the schema partition too?
 605             expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.domaindns_zone)
 606             domain = (ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
 607                                       attrs=[],
 608                                       base=ctx.samdb.get_partitions_dn(),
 609                                       expression=expr), ctx.domaindns_zone)
 610
 611             expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.forestdns_zone)
 612             forest = (ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
 613                                       attrs=[],
 614                                       base=ctx.samdb.get_partitions_dn(),
 615                                       expression=expr), ctx.forestdns_zone)
 616
 617             for part, zone in (domain, forest):
 618                 if zone not in ctx.nc_list:
 619                     continue
 620
 621                 if len(part) == 1:
 622                     m = ldb.Message()
 623                     m.dn = part[0].dn
 624                     attr = "msDS-NC-Replica-Locations"
 625                     if ctx.RODC:
 626                         attr = "msDS-NC-RO-Replica-Locations"
 627
 628                     m[attr] = ldb.MessageElement(ctx.ntds_dn,
 629                                                  ldb.FLAG_MOD_ADD, attr)
 630                     ctx.samdb.modify(m)
 631
 632         if ctx.connection_dn is not None:
 633             print "Adding %s" % ctx.connection_dn
 634             rec = {
 635                 "dn" : ctx.connection_dn,
 636                 "objectclass" : "nTDSConnection",
 637                 "enabledconnection" : "TRUE",
 638                 "options" : "65",
 639                 "fromServer" : ctx.dc_ntds_dn}
 640             ctx.samdb.add(rec)
 641
 642         if ctx.acct_dn:
 643             print "Adding SPNs to %s" % ctx.acct_dn
 644             m = ldb.Message()
 645             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 646             for i in range(len(ctx.SPNs)):
 647                 ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
 648             m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
 649                                                            ldb.FLAG_MOD_REPLACE,
 650                                                            "servicePrincipalName")
 651             ctx.samdb.modify(m)
 652
 653             # The account password set operation should normally be done over
 654             # LDAP. Windows 2000 DCs however allow this only with SSL
 655             # connections which are hard to set up and otherwise refuse with
 656             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 657             # over SAMR.
 658             print "Setting account password for %s" % ctx.samname
 659             try:
 660                 ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))"
 661                                       % ldb.binary_encode(ctx.samname),
 662                                       ctx.acct_pass,
 663                                       force_change_at_next_login=False,
 664                                       username=ctx.samname)
 665             except ldb.LdbError, (num, _):
 666                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 667                     pass
 668                 ctx.net.set_password(account_name=ctx.samname,
 669                                      domain_name=ctx.domain_name,
 670                                      newpassword=ctx.acct_pass)
 671
 672             res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE,
 673                                    attrs=["msDS-KeyVersionNumber"])
 674             if "msDS-KeyVersionNumber" in res[0]:
 675                 ctx.key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 676             else:
 677                 ctx.key_version_number = None
 678
 679             print("Enabling account")
 680             m = ldb.Message()
 681             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 682             m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
 683                                                          ldb.FLAG_MOD_REPLACE,
 684                                                          "userAccountControl")
 685             ctx.samdb.modify(m)
 686
 687         if ctx.dns_backend.startswith("BIND9_"):
 688             ctx.dnspass = samba.generate_random_password(128, 255)
 689
 690             recs = ctx.samdb.parse_ldif(read_and_sub_file(setup_path("provision_dns_add_samba.ldif"),
 691                                                                 {"DNSDOMAIN": ctx.dnsdomain,
 692                                                                  "DOMAINDN": ctx.base_dn,
 693                                                                  "HOSTNAME" : ctx.myname,
 694                                                                  "DNSPASS_B64": b64encode(ctx.dnspass),
 695                                                                  "DNSNAME" : ctx.dnshostname}))
 696             for changetype, msg in recs:
 697                 assert changetype == ldb.CHANGETYPE_NONE
 698                 dns_acct_dn = msg["dn"]
 699                 print "Adding DNS account %s with dns/ SPN" % msg["dn"]
 700
 701                 # Remove dns password (we will set it as a modify, as we can't do clearTextPassword over LDAP)
 702                 del msg["clearTextPassword"]
 703                 # Remove isCriticalSystemObject for similar reasons, it cannot be set over LDAP
 704                 del msg["isCriticalSystemObject"]
 705                 # Disable account until password is set
 706                 msg["userAccountControl"] = str(samba.dsdb.UF_NORMAL_ACCOUNT |
 707                                                 samba.dsdb.UF_ACCOUNTDISABLE)
 708                 try:
 709                     ctx.samdb.add(msg)
 710                 except ldb.LdbError, (num, _):
 711                     if num != ldb.ERR_ENTRY_ALREADY_EXISTS:
 712                         raise
 713
 714             # The account password set operation should normally be done over
 715             # LDAP. Windows 2000 DCs however allow this only with SSL
 716             # connections which are hard to set up and otherwise refuse with
 717             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 718             # over SAMR.
 719             print "Setting account password for dns-%s" % ctx.myname
 720             try:
 721                 ctx.samdb.setpassword("(&(objectClass=user)(samAccountName=dns-%s))"
 722                                       % ldb.binary_encode(ctx.myname),
 723                                       ctx.dnspass,
 724                                       force_change_at_next_login=False,
 725                                       username=ctx.samname)
 726             except ldb.LdbError, (num, _):
 727                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 728                     raise
 729                 ctx.net.set_password(account_name="dns-%s" % ctx.myname,
 730                                      domain_name=ctx.domain_name,
 731                                      newpassword=ctx.dnspass)
 732
 733             res = ctx.samdb.search(base=dns_acct_dn, scope=ldb.SCOPE_BASE,
 734                                    attrs=["msDS-KeyVersionNumber"])
 735             if "msDS-KeyVersionNumber" in res[0]:
 736                 ctx.dns_key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 737             else:
 738                 ctx.dns_key_version_number = None
 739
 740     def join_add_objects2(ctx):
 741         """add the various objects needed for the join, for subdomains post replication"""
 742
 743         print "Adding %s" % ctx.partition_dn
 744         name_map = {'SubdomainAdmins': "%s-%s" % (str(ctx.domsid), security.DOMAIN_RID_ADMINS)}
 745         sd_binary = descriptor.get_paritions_crossref_subdomain_descriptor(ctx.forestsid, name_map=name_map)
 746         rec = {
 747             "dn" : ctx.partition_dn,
 748             "objectclass" : "crossRef",
 749             "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
 750             "nCName" : ctx.base_dn,
 751             "nETBIOSName" : ctx.domain_name,
 752             "dnsRoot": ctx.dnsdomain,
 753             "trustParent" : ctx.parent_partition_dn,
 754             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN),
 755             "ntSecurityDescriptor" : sd_binary,
 756         }
 757
 758         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 759             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 760
 761         rec2 = ctx.join_ntdsdsa_obj()
 762
 763         objects = ctx.DsAddEntry([rec, rec2])
 764         if len(objects) != 2:
 765             raise DCJoinException("Expected 2 objects from DsAddEntry")
 766
 767         ctx.ntds_guid = objects[1].guid
 768
 769         print("Replicating partition DN")
 770         ctx.repl.replicate(ctx.partition_dn,
 771                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 772                            ctx.ntds_guid,
 773                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 774                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 775
 776         print("Replicating NTDS DN")
 777         ctx.repl.replicate(ctx.ntds_dn,
 778                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 779                            ctx.ntds_guid,
 780                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 781                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 782
 783     def join_provision(ctx):
 784         """Provision the local SAM."""
 785
 786         print "Calling bare provision"
 787
 788         smbconf = ctx.lp.configfile
 789
 790         presult = provision(ctx.logger, system_session(), smbconf=smbconf,
 791                 targetdir=ctx.targetdir, samdb_fill=FILL_DRS, realm=ctx.realm,
 792                 rootdn=ctx.root_dn, domaindn=ctx.base_dn,
 793                 schemadn=ctx.schema_dn, configdn=ctx.config_dn,
 794                 serverdn=ctx.server_dn, domain=ctx.domain_name,
 795                 hostname=ctx.myname, domainsid=ctx.domsid,
 796                 machinepass=ctx.acct_pass, serverrole="active directory domain controller",
 797                 sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
 798                 use_ntvfs=ctx.use_ntvfs, dns_backend=ctx.dns_backend)
 799         print "Provision OK for domain DN %s" % presult.domaindn
 800         ctx.local_samdb = presult.samdb
 801         ctx.lp          = presult.lp
 802         ctx.paths       = presult.paths
 803         ctx.names       = presult.names
 804
 805         # Fix up the forestsid, it may be different if we are joining as a subdomain
 806         ctx.names.forestsid = ctx.forestsid
 807
 808     def join_provision_own_domain(ctx):
 809         """Provision the local SAM."""
 810
 811         # we now operate exclusively on the local database, which
 812         # we need to reopen in order to get the newly created schema
 813         print("Reconnecting to local samdb")
 814         ctx.samdb = SamDB(url=ctx.local_samdb.url,
 815                           session_info=system_session(),
 816                           lp=ctx.local_samdb.lp,
 817                           global_schema=False)
 818         ctx.samdb.set_invocation_id(str(ctx.invocation_id))
 819         ctx.local_samdb = ctx.samdb
 820
 821         ctx.logger.info("Finding domain GUID from ncName")
 822         res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
 823                                      controls=["extended_dn:1:1", "reveal_internals:0"])
 824
 825         if 'nCName' not in res[0]:
 826             raise DCJoinException("Can't find naming context on partition DN %s in %s" % (ctx.partition_dn, ctx.samdb.url))
 827
 828         try:
 829             ctx.names.domainguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
 830         except KeyError:
 831             raise DCJoinException("Can't find GUID in naming master on partition DN %s" % res[0]['ncName'][0])
 832
 833         ctx.logger.info("Got domain GUID %s" % ctx.names.domainguid)
 834
 835         ctx.logger.info("Calling own domain provision")
 836
 837         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 838
 839         presult = provision_fill(ctx.local_samdb, secrets_ldb,
 840                                  ctx.logger, ctx.names, ctx.paths,
 841                                  dom_for_fun_level=DS_DOMAIN_FUNCTION_2003,
 842                                  targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
 843                                  machinepass=ctx.acct_pass, serverrole="active directory domain controller",
 844                                  lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
 845                                  dns_backend=ctx.dns_backend, adminpass=ctx.adminpass)
 846         print("Provision OK for domain %s" % ctx.names.dnsdomain)
 847
 848     def join_replicate(ctx):
 849         """Replicate the SAM."""
 850
 851         print "Starting replication"
 852         ctx.local_samdb.transaction_start()
 853         try:
 854             source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
 855             if ctx.ntds_guid is None:
 856                 print("Using DS_BIND_GUID_W2K3")
 857                 destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
 858             else:
 859                 destination_dsa_guid = ctx.ntds_guid
 860
 861             if ctx.RODC:
 862                 repl_creds = Credentials()
 863                 repl_creds.guess(ctx.lp)
 864                 repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
 865                 repl_creds.set_username(ctx.samname)
 866                 repl_creds.set_password(ctx.acct_pass)
 867             else:
 868                 repl_creds = ctx.creds
 869
 870             binding_options = "seal"
 871             if ctx.lp.log_level() >= 5:
 872                 binding_options += ",print"
 873             repl = drs_utils.drs_Replicate(
 874                 "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 875                 ctx.lp, repl_creds, ctx.local_samdb, ctx.invocation_id)
 876
 877             repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
 878                     destination_dsa_guid, schema=True, rodc=ctx.RODC,
 879                     replica_flags=ctx.replica_flags)
 880             repl.replicate(ctx.config_dn, source_dsa_invocation_id,
 881                     destination_dsa_guid, rodc=ctx.RODC,
 882                     replica_flags=ctx.replica_flags)
 883             if not ctx.subdomain:
 884                 # Replicate first the critical object for the basedn
 885                 if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
 886                     print "Replicating critical objects from the base DN of the domain"
 887                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 888                     repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 889                                 destination_dsa_guid, rodc=ctx.RODC,
 890                                 replica_flags=ctx.domain_replica_flags)
 891                     ctx.domain_replica_flags ^= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
 892                 else:
 893                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_GET_ANC
 894                 repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 895                                destination_dsa_guid, rodc=ctx.RODC,
 896                                replica_flags=ctx.domain_replica_flags)
 897             print "Done with always replicated NC (base, config, schema)"
 898
 899             # At this point we should already have an entry in the ForestDNS
 900             # and DomainDNS NC (those under CN=Partions,DC=...) in order to
 901             # indicate that we hold a replica for this NC.
 902             for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
 903                 if nc in ctx.nc_list:
 904                     print "Replicating %s" % (str(nc))
 905                     repl.replicate(nc, source_dsa_invocation_id,
 906                                     destination_dsa_guid, rodc=ctx.RODC,
 907                                     replica_flags=ctx.replica_flags)
 908
 909             if ctx.RODC:
 910                 repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
 911                         destination_dsa_guid,
 912                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 913                 repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
 914                         destination_dsa_guid,
 915                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 916             ctx.repl = repl
 917             ctx.source_dsa_invocation_id = source_dsa_invocation_id
 918             ctx.destination_dsa_guid = destination_dsa_guid
 919
 920             print "Committing SAM database"
 921         except:
 922             ctx.local_samdb.transaction_cancel()
 923             raise
 924         else:
 925             ctx.local_samdb.transaction_commit()
 926
 927     def send_DsReplicaUpdateRefs(ctx, dn):
 928         r = drsuapi.DsReplicaUpdateRefsRequest1()
 929         r.naming_context = drsuapi.DsReplicaObjectIdentifier()
 930         r.naming_context.dn = str(dn)
 931         r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
 932         r.naming_context.sid = security.dom_sid("S-0-0")
 933         r.dest_dsa_guid = ctx.ntds_guid
 934         r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
 935         r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
 936         if not ctx.RODC:
 937             r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
 938
 939         if ctx.drsuapi:
 940             ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
 941
 942     def join_finalise(ctx):
 943         """Finalise the join, mark us synchronised and setup secrets db."""
 944
 945         # FIXME we shouldn't do this in all cases
 946
 947         # If for some reasons we joined in another site than the one of
 948         # DC we just replicated from then we don't need to send the updatereplicateref
 949         # as replication between sites is time based and on the initiative of the
 950         # requesting DC
 951         if not ctx.clone_only:
 952             ctx.logger.info("Sending DsReplicaUpdateRefs for all the replicated partitions")
 953             for nc in ctx.nc_list:
 954                 ctx.send_DsReplicaUpdateRefs(nc)
 955
 956         if not ctx.clone_only and ctx.RODC:
 957             print "Setting RODC invocationId"
 958             ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
 959             ctx.local_samdb.set_opaque_integer("domainFunctionality",
 960                                                ctx.behavior_version)
 961             m = ldb.Message()
 962             m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
 963             m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
 964                                                    ldb.FLAG_MOD_REPLACE,
 965                                                    "invocationId")
 966             ctx.local_samdb.modify(m)
 967
 968             # Note: as RODC the invocationId is only stored
 969             # on the RODC itself, the other DCs never see it.
 970             #
 971             # Thats is why we fix up the replPropertyMetaData stamp
 972             # for the 'invocationId' attribute, we need to change
 973             # the 'version' to '0', this is what windows 2008r2 does as RODC
 974             #
 975             # This means if the object on a RWDC ever gets a invocationId
 976             # attribute, it will have version '1' (or higher), which will
 977             # will overwrite the RODC local value.
 978             ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
 979                                                                "invocationId",
 980                                                                0)
 981
 982         ctx.logger.info("Setting isSynchronized and dsServiceName")
 983         m = ldb.Message()
 984         m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
 985         m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
 986
 987         # We want to appear to be the server we just cloned
 988         if ctx.clone_only:
 989             guid = ctx.remote_dc_ntds_guid
 990         else:
 991             guid = ctx.ntds_guid
 992
 993         m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(guid),
 994                                                 ldb.FLAG_MOD_REPLACE, "dsServiceName")
 995         ctx.local_samdb.modify(m)
 996
 997         if ctx.clone_only or ctx.subdomain:
 998             return
 999
1000         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
1001
1002         ctx.logger.info("Setting up secrets database")
1003         secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
1004                             realm=ctx.realm,
1005                             dnsdomain=ctx.dnsdomain,
1006                             netbiosname=ctx.myname,
1007                             domainsid=ctx.domsid,
1008                             machinepass=ctx.acct_pass,
1009                             secure_channel_type=ctx.secure_channel_type,
1010                             key_version_number=ctx.key_version_number)
1011
1012         if ctx.dns_backend.startswith("BIND9_"):
1013             setup_bind9_dns(ctx.local_samdb, secrets_ldb,
1014                             ctx.names, ctx.paths, ctx.lp, ctx.logger,
1015                             dns_backend=ctx.dns_backend,
1016                             dnspass=ctx.dnspass, os_level=ctx.behavior_version,
1017                             targetdir=ctx.targetdir,
1018                             key_version_number=ctx.dns_key_version_number)
1019
1020     def join_setup_trusts(ctx):
1021         """provision the local SAM."""
1022
1023         print "Setup domain trusts with server %s" % ctx.server
1024         binding_options = ""  # why doesn't signing work here? w2k8r2 claims no session key
1025         lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
1026                              ctx.lp, ctx.creds)
1027
1028         objectAttr = lsa.ObjectAttribute()
1029         objectAttr.sec_qos = lsa.QosInfo()
1030
1031         pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
1032                                          objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
1033
1034         info = lsa.TrustDomainInfoInfoEx()
1035         info.domain_name.string = ctx.dnsdomain
1036         info.netbios_name.string = ctx.domain_name
1037         info.sid = ctx.domsid
1038         info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
1039         info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
1040         info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
1041
1042         try:
1043             oldname = lsa.String()
1044             oldname.string = ctx.dnsdomain
1045             oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
1046                                                            lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
1047             print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
1048             lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
1049         except RuntimeError:
1050             pass
1051
1052         password_blob = string_to_byte_array(ctx.trustdom_pass.encode('utf-16-le'))
1053
1054         clear_value = drsblobs.AuthInfoClear()
1055         clear_value.size = len(password_blob)
1056         clear_value.password = password_blob
1057
1058         clear_authentication_information = drsblobs.AuthenticationInformation()
1059         clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
1060         clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
1061         clear_authentication_information.AuthInfo = clear_value
1062
1063         authentication_information_array = drsblobs.AuthenticationInformationArray()
1064         authentication_information_array.count = 1
1065         authentication_information_array.array = [clear_authentication_information]
1066
1067         outgoing = drsblobs.trustAuthInOutBlob()
1068         outgoing.count = 1
1069         outgoing.current = authentication_information_array
1070
1071         trustpass = drsblobs.trustDomainPasswords()
1072         confounder = [3] * 512
1073
1074         for i in range(512):
1075             confounder[i] = random.randint(0, 255)
1076
1077         trustpass.confounder = confounder
1078
1079         trustpass.outgoing = outgoing
1080         trustpass.incoming = outgoing
1081
1082         trustpass_blob = ndr_pack(trustpass)
1083
1084         encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
1085
1086         auth_blob = lsa.DATA_BUF2()
1087         auth_blob.size = len(encrypted_trustpass)
1088         auth_blob.data = string_to_byte_array(encrypted_trustpass)
1089
1090         auth_info = lsa.TrustDomainInfoAuthInfoInternal()
1091         auth_info.auth_blob = auth_blob
1092
1093         trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
1094                                                          info,
1095                                                          auth_info,
1096                                                          security.SEC_STD_DELETE)
1097
1098         rec = {
1099             "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
1100             "objectclass" : "trustedDomain",
1101             "trustType" : str(info.trust_type),
1102             "trustAttributes" : str(info.trust_attributes),
1103             "trustDirection" : str(info.trust_direction),
1104             "flatname" : ctx.forest_domain_name,
1105             "trustPartner" : ctx.dnsforest,
1106             "trustAuthIncoming" : ndr_pack(outgoing),
1107             "trustAuthOutgoing" : ndr_pack(outgoing),
1108             "securityIdentifier" : ndr_pack(ctx.forestsid)
1109             }
1110         ctx.local_samdb.add(rec)
1111
1112         rec = {
1113             "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
1114             "objectclass" : "user",
1115             "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
1116             "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le'),
1117             "samAccountName" : "%s$" % ctx.forest_domain_name
1118             }
1119         ctx.local_samdb.add(rec)
1120
1121
1122     def do_join(ctx):
1123         # nc_list is the list of naming context (NC) for which we will
1124         # replicate in and send a updateRef command to the partner DC
1125
1126         # full_nc_list is the list of naming context (NC) we hold
1127         # read/write copies of.  These are not subsets of each other.
1128         ctx.nc_list = [ ctx.config_dn, ctx.schema_dn ]
1129         ctx.full_nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
1130
1131         if ctx.subdomain and ctx.dns_backend != "NONE":
1132             ctx.full_nc_list += [ctx.domaindns_zone]
1133
1134         elif not ctx.subdomain:
1135             ctx.nc_list += [ctx.base_dn]
1136
1137             if ctx.dns_backend != "NONE":
1138                 ctx.nc_list += [ctx.domaindns_zone]
1139                 ctx.nc_list += [ctx.forestdns_zone]
1140                 ctx.full_nc_list += [ctx.domaindns_zone]
1141                 ctx.full_nc_list += [ctx.forestdns_zone]
1142
1143         if not ctx.clone_only:
1144             if ctx.promote_existing:
1145                 ctx.promote_possible()
1146             else:
1147                 ctx.cleanup_old_join()
1148
1149         try:
1150             if not ctx.clone_only:
1151                 ctx.join_add_objects()
1152             ctx.join_provision()
1153             ctx.join_replicate()
1154             if (not ctx.clone_only and ctx.subdomain):
1155                 ctx.join_add_objects2()
1156                 ctx.join_provision_own_domain()
1157                 ctx.join_setup_trusts()
1158             ctx.join_finalise()
1159         except:
1160             try:
1161                 print "Join failed - cleaning up"
1162             except IOError:
1163                 pass
1164             if not ctx.clone_only:
1165                 ctx.cleanup_old_join()
1166             raise
1167
1168
1169 def join_RODC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
1170               targetdir=None, domain=None, domain_critical_only=False,
1171               machinepass=None, use_ntvfs=False, dns_backend=None,
1172               promote_existing=False):
1173     """Join as a RODC."""
1174
1175     ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, domain,
1176                   machinepass, use_ntvfs, dns_backend, promote_existing)
1177
1178     lp.set("workgroup", ctx.domain_name)
1179     logger.info("workgroup is %s" % ctx.domain_name)
1180
1181     lp.set("realm", ctx.realm)
1182     logger.info("realm is %s" % ctx.realm)
1183
1184     ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
1185
1186     # setup some defaults for accounts that should be replicated to this RODC
1187     ctx.never_reveal_sid = [
1188         "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
1189         "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
1190         "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
1191         "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
1192         "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS]
1193     ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
1194
1195     mysid = ctx.get_mysid()
1196     admin_dn = "<SID=%s>" % mysid
1197     ctx.managedby = admin_dn
1198
1199     ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
1200                               samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
1201                               samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
1202
1203     ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
1204                       "RestrictedKrbHost/%s" % ctx.dnshostname ])
1205
1206     ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
1207     ctx.secure_channel_type = misc.SEC_CHAN_RODC
1208     ctx.RODC = True
1209     ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
1210                            drsuapi.DRSUAPI_DRS_PER_SYNC |
1211                            drsuapi.DRSUAPI_DRS_GET_ANC |
1212                            drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
1213                            drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
1214                            drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
1215     ctx.domain_replica_flags = ctx.replica_flags
1216     if domain_critical_only:
1217         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1218
1219     ctx.do_join()
1220
1221     logger.info("Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid))
1222
1223
1224 def join_DC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
1225             targetdir=None, domain=None, domain_critical_only=False,
1226             machinepass=None, use_ntvfs=False, dns_backend=None,
1227             promote_existing=False):
1228     """Join as a DC."""
1229     ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, domain,
1230                   machinepass, use_ntvfs, dns_backend, promote_existing)
1231
1232     lp.set("workgroup", ctx.domain_name)
1233     logger.info("workgroup is %s" % ctx.domain_name)
1234
1235     lp.set("realm", ctx.realm)
1236     logger.info("realm is %s" % ctx.realm)
1237
1238     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1239
1240     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1241     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1242
1243     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1244                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1245                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1246                          drsuapi.DRSUAPI_DRS_GET_ANC |
1247                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1248                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1249     ctx.domain_replica_flags = ctx.replica_flags
1250     if domain_critical_only:
1251         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1252
1253     ctx.do_join()
1254     logger.info("Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid))
1255
1256 def join_clone(logger=None, server=None, creds=None, lp=None,
1257                targetdir=None, domain=None, include_secrets=False):
1258     """Join as a DC."""
1259     ctx = dc_join(logger, server, creds, lp, site=None, netbios_name=None, targetdir=targetdir, domain=domain,
1260                   machinepass=None, use_ntvfs=False, dns_backend="NONE", promote_existing=False, clone_only=True)
1261
1262     lp.set("workgroup", ctx.domain_name)
1263     logger.info("workgroup is %s" % ctx.domain_name)
1264
1265     lp.set("realm", ctx.realm)
1266     logger.info("realm is %s" % ctx.realm)
1267
1268     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1269                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1270                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1271                          drsuapi.DRSUAPI_DRS_GET_ANC |
1272                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1273                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1274     if not include_secrets:
1275         ctx.replica_flags |= drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
1276     ctx.domain_replica_flags = ctx.replica_flags
1277
1278     ctx.do_join()
1279     logger.info("Cloned domain %s (SID %s)" % (ctx.domain_name, ctx.domsid))
1280
1281 def join_subdomain(logger=None, server=None, creds=None, lp=None, site=None,
1282         netbios_name=None, targetdir=None, parent_domain=None, dnsdomain=None,
1283         netbios_domain=None, machinepass=None, adminpass=None, use_ntvfs=False,
1284         dns_backend=None):
1285     """Join as a DC."""
1286     ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, parent_domain,
1287                   machinepass, use_ntvfs, dns_backend)
1288     ctx.subdomain = True
1289     if adminpass is None:
1290         ctx.adminpass = samba.generate_random_password(12, 32)
1291     else:
1292         ctx.adminpass = adminpass
1293     ctx.parent_domain_name = ctx.domain_name
1294     ctx.domain_name = netbios_domain
1295     ctx.realm = dnsdomain
1296     ctx.parent_dnsdomain = ctx.dnsdomain
1297     ctx.parent_partition_dn = ctx.get_parent_partition_dn()
1298     ctx.dnsdomain = dnsdomain
1299     ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
1300     ctx.naming_master = ctx.get_naming_master()
1301     if ctx.naming_master != ctx.server:
1302         logger.info("Reconnecting to naming master %s" % ctx.naming_master)
1303         ctx.server = ctx.naming_master
1304         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
1305                           session_info=system_session(),
1306                           credentials=ctx.creds, lp=ctx.lp)
1307         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['dnsHostName'],
1308                                controls=[])
1309         ctx.server = res[0]["dnsHostName"]
1310         logger.info("DNS name of new naming master is %s" % ctx.server)
1311
1312     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
1313     ctx.forestsid = ctx.domsid
1314     ctx.domsid = security.random_sid()
1315     ctx.acct_dn = None
1316     ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
1317     ctx.trustdom_pass = samba.generate_random_password(128, 128)
1318
1319     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1320
1321     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1322     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1323
1324     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1325                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1326                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1327                          drsuapi.DRSUAPI_DRS_GET_ANC |
1328                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1329                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1330     ctx.domain_replica_flags = ctx.replica_flags
1331
1332     ctx.do_join()
1333     ctx.logger.info("Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid))