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
  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.credentials import Credentials, DONT_USE_KERBEROS
  28 from samba.provision import secretsdb_self_join, provision, provision_fill, FILL_DRS, FILL_SUBDOMAIN
  29 from samba.provision.common import setup_path
  30 from samba.schema import Schema
  31 from samba.net import Net
  32 from samba.provision.sambadns import setup_bind9_dns
  33 from samba import read_and_sub_file
  34 from base64 import b64encode
  35 import logging
  36 import talloc
  37 import random
  38 import time
  39
  40 # this makes debugging easier
  41 talloc.enable_null_tracking()
  42
  43 class DCJoinException(Exception):
  44
  45     def __init__(self, msg):
  46         super(DCJoinException, self).__init__("Can't join, error: %s" % msg)
  47
  48
  49 class dc_join(object):
  50     """Perform a DC join."""
  51
  52     def __init__(ctx, server=None, creds=None, lp=None, site=None,
  53                  netbios_name=None, targetdir=None, domain=None,
  54                  machinepass=None, use_ntvfs=False, dns_backend=None,
  55                  promote_existing=False):
  56         ctx.creds = creds
  57         ctx.lp = lp
  58         ctx.site = site
  59         ctx.netbios_name = netbios_name
  60         ctx.targetdir = targetdir
  61         ctx.use_ntvfs = use_ntvfs
  62
  63         ctx.promote_existing = promote_existing
  64         ctx.promote_from_dn = None
  65
  66         ctx.nc_list = []
  67         ctx.full_nc_list = []
  68
  69         ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
  70         ctx.net = Net(creds=ctx.creds, lp=ctx.lp)
  71
  72         if server is not None:
  73             ctx.server = server
  74         else:
  75             print("Finding a writeable DC for domain '%s'" % domain)
  76             ctx.server = ctx.find_dc(domain)
  77             print("Found DC %s" % ctx.server)
  78
  79         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
  80                           session_info=system_session(),
  81                           credentials=ctx.creds, lp=ctx.lp)
  82
  83         try:
  84             ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
  85         except ldb.LdbError, (enum, estr):
  86             raise DCJoinException(estr)
  87
  88
  89         ctx.myname = netbios_name
  90         ctx.samname = "%s$" % ctx.myname
  91         ctx.base_dn = str(ctx.samdb.get_default_basedn())
  92         ctx.root_dn = str(ctx.samdb.get_root_basedn())
  93         ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
  94         ctx.config_dn = str(ctx.samdb.get_config_basedn())
  95         ctx.domsid = ctx.samdb.get_domain_sid()
  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         # work out the DNs of all the objects we will be adding
 110         ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
 111         ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
 112         topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
 113         if ctx.dn_exists(topology_base):
 114             ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
 115         else:
 116             ctx.topology_dn = None
 117
 118         ctx.dnsdomain = ctx.samdb.domain_dns_name()
 119         ctx.dnsforest = ctx.samdb.forest_dns_name()
 120         ctx.domaindns_zone = 'DC=DomainDnsZones,%s' % ctx.base_dn
 121         ctx.forestdns_zone = 'DC=ForestDnsZones,%s' % ctx.base_dn
 122
 123         res_domaindns = ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
 124                                          attrs=[],
 125                                          base=ctx.samdb.get_partitions_dn(),
 126                                          expression="(&(objectClass=crossRef)(ncName=%s))" % ctx.domaindns_zone)
 127         if dns_backend is None:
 128             ctx.dns_backend = "NONE"
 129         else:
 130             if len(res_domaindns) == 0:
 131                 ctx.dns_backend = "NONE"
 132                 print "NO DNS zone information found in source domain, not replicating DNS"
 133             else:
 134                 ctx.dns_backend = dns_backend
 135
 136         ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
 137
 138         ctx.realm = ctx.dnsdomain
 139
 140         ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)
 141
 142         ctx.tmp_samdb = None
 143
 144         ctx.SPNs = [ "HOST/%s" % ctx.myname,
 145                      "HOST/%s" % ctx.dnshostname,
 146                      "GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest) ]
 147
 148         # these elements are optional
 149         ctx.never_reveal_sid = None
 150         ctx.reveal_sid = None
 151         ctx.connection_dn = None
 152         ctx.RODC = False
 153         ctx.krbtgt_dn = None
 154         ctx.drsuapi = None
 155         ctx.managedby = None
 156         ctx.subdomain = False
 157
 158     def del_noerror(ctx, dn, recursive=False):
 159         if recursive:
 160             try:
 161                 res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
 162             except Exception:
 163                 return
 164             for r in res:
 165                 ctx.del_noerror(r.dn, recursive=True)
 166         try:
 167             ctx.samdb.delete(dn)
 168             print "Deleted %s" % dn
 169         except Exception:
 170             pass
 171
 172     def cleanup_old_join(ctx):
 173         """Remove any DNs from a previous join."""
 174         try:
 175             # find the krbtgt link
 176             print("checking sAMAccountName")
 177             if ctx.subdomain:
 178                 res = None
 179             else:
 180                 res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 181                                        expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
 182                                        attrs=["msDS-krbTgtLink"])
 183                 if res:
 184                     ctx.del_noerror(res[0].dn, recursive=True)
 185
 186                 res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 187                                        expression='(&(sAMAccountName=%s)(servicePrincipalName=%s))' % (ldb.binary_encode("dns-%s" % ctx.myname), ldb.binary_encode("dns/%s" % ctx.dnshostname)),
 188                                        attrs=[])
 189                 if res:
 190                     ctx.del_noerror(res[0].dn, recursive=True)
 191
 192                 res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 193                                        expression='(sAMAccountName=%s)' % ldb.binary_encode("dns-%s" % ctx.myname),
 194                                        attrs=[])
 195                 if res:
 196                     raise RuntimeError("Not removing account %s which looks like a Samba DNS service account but does not have servicePrincipalName=%s" % (ldb.binary_encode("dns-%s" % ctx.myname), ldb.binary_encode("dns/%s" % ctx.dnshostname)))
 197
 198             if ctx.connection_dn is not None:
 199                 ctx.del_noerror(ctx.connection_dn)
 200             if ctx.krbtgt_dn is not None:
 201                 ctx.del_noerror(ctx.krbtgt_dn)
 202             ctx.del_noerror(ctx.ntds_dn)
 203             ctx.del_noerror(ctx.server_dn, recursive=True)
 204             if ctx.topology_dn:
 205                 ctx.del_noerror(ctx.topology_dn)
 206             if ctx.partition_dn:
 207                 ctx.del_noerror(ctx.partition_dn)
 208             if res:
 209                 ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
 210                 ctx.del_noerror(ctx.new_krbtgt_dn)
 211
 212             if ctx.subdomain:
 213                 binding_options = "sign"
 214                 lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 215                                      ctx.lp, ctx.creds)
 216
 217                 objectAttr = lsa.ObjectAttribute()
 218                 objectAttr.sec_qos = lsa.QosInfo()
 219
 220                 pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 221                                                  objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 222
 223                 name = lsa.String()
 224                 name.string = ctx.realm
 225                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 226
 227                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 228
 229                 name = lsa.String()
 230                 name.string = ctx.forest_domain_name
 231                 info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 232
 233                 lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
 234
 235         except Exception:
 236             pass
 237
 238     def promote_possible(ctx):
 239         """confirm that the account is just a bare NT4 BDC or a member server, so can be safely promoted"""
 240         if ctx.subdomain:
 241             # This shouldn't happen
 242             raise Exception("Can not promote into a subdomain")
 243
 244         res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
 245                                expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
 246                                attrs=["msDS-krbTgtLink", "userAccountControl", "serverReferenceBL", "rIDSetReferences"])
 247         if len(res) == 0:
 248             raise Exception("Could not find domain member account '%s' to promote to a DC, use 'samba-tool domain join' instead'" % ctx.samname)
 249         if "msDS-krbTgtLink" in res[0] or "serverReferenceBL" in res[0] or "rIDSetReferences" in res[0]:
 250             raise Exception("Account '%s' appears to be an active DC, use 'samba-tool domain join' if you must re-create this account" % ctx.samname)
 251         if (int(res[0]["userAccountControl"][0]) & (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT|samba.dsdb.UF_SERVER_TRUST_ACCOUNT) == 0):
 252             raise Exception("Account %s is not a domain member or a bare NT4 BDC, use 'samba-tool domain join' instead'" % ctx.samname)
 253
 254         ctx.promote_from_dn = res[0].dn
 255
 256
 257     def find_dc(ctx, domain):
 258         """find a writeable DC for the given domain"""
 259         try:
 260             ctx.cldap_ret = ctx.net.finddc(domain=domain, flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
 261         except Exception:
 262             raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
 263         if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
 264             ctx.site = ctx.cldap_ret.client_site
 265         return ctx.cldap_ret.pdc_dns_name
 266
 267
 268     def get_behavior_version(ctx):
 269         res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 270         if "msDS-Behavior-Version" in res[0]:
 271             return int(res[0]["msDS-Behavior-Version"][0])
 272         else:
 273             return samba.dsdb.DS_DOMAIN_FUNCTION_2000
 274
 275     def get_dnsHostName(ctx):
 276         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
 277         return res[0]["dnsHostName"][0]
 278
 279     def get_domain_name(ctx):
 280         '''get netbios name of the domain from the partitions record'''
 281         partitions_dn = ctx.samdb.get_partitions_dn()
 282         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 283                                expression='ncName=%s' % ctx.samdb.get_default_basedn())
 284         return res[0]["nETBIOSName"][0]
 285
 286     def get_forest_domain_name(ctx):
 287         '''get netbios name of the domain from the partitions record'''
 288         partitions_dn = ctx.samdb.get_partitions_dn()
 289         res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
 290                                expression='ncName=%s' % ctx.samdb.get_root_basedn())
 291         return res[0]["nETBIOSName"][0]
 292
 293     def get_parent_partition_dn(ctx):
 294         '''get the parent domain partition DN from parent DNS name'''
 295         res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
 296                                expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
 297                                (ctx.parent_dnsdomain, ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
 298         return str(res[0].dn)
 299
 300     def get_naming_master(ctx):
 301         '''get the parent domain partition DN from parent DNS name'''
 302         res = ctx.samdb.search(base='CN=Partitions,%s' % ctx.config_dn, attrs=['fSMORoleOwner'],
 303                                scope=ldb.SCOPE_BASE, controls=["extended_dn:1:1"])
 304         if not 'fSMORoleOwner' in res[0]:
 305             raise DCJoinException("Can't find naming master on partition DN %s" % ctx.partition_dn)
 306         master_guid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['fSMORoleOwner'][0]).get_extended_component('GUID')))
 307         master_host = '%s._msdcs.%s' % (master_guid, ctx.dnsforest)
 308         return master_host
 309
 310     def get_mysid(ctx):
 311         '''get the SID of the connected user. Only works with w2k8 and later,
 312            so only used for RODC join'''
 313         res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
 314         binsid = res[0]["tokenGroups"][0]
 315         return ctx.samdb.schema_format_value("objectSID", binsid)
 316
 317     def dn_exists(ctx, dn):
 318         '''check if a DN exists'''
 319         try:
 320             res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
 321         except ldb.LdbError, (enum, estr):
 322             if enum == ldb.ERR_NO_SUCH_OBJECT:
 323                 return False
 324             raise
 325         return True
 326
 327     def add_krbtgt_account(ctx):
 328         '''RODCs need a special krbtgt account'''
 329         print "Adding %s" % ctx.krbtgt_dn
 330         rec = {
 331             "dn" : ctx.krbtgt_dn,
 332             "objectclass" : "user",
 333             "useraccountcontrol" : str(samba.dsdb.UF_NORMAL_ACCOUNT |
 334                                        samba.dsdb.UF_ACCOUNTDISABLE),
 335             "showinadvancedviewonly" : "TRUE",
 336             "description" : "krbtgt for %s" % ctx.samname}
 337         ctx.samdb.add(rec, ["rodc_join:1:1"])
 338
 339         # now we need to search for the samAccountName attribute on the krbtgt DN,
 340         # as this will have been magically set to the krbtgt number
 341         res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
 342         ctx.krbtgt_name = res[0]["samAccountName"][0]
 343
 344         print "Got krbtgt_name=%s" % ctx.krbtgt_name
 345
 346         m = ldb.Message()
 347         m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 348         m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
 349                                                   ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
 350         ctx.samdb.modify(m)
 351
 352         ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
 353         print "Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 354         ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)
 355
 356     def drsuapi_connect(ctx):
 357         '''make a DRSUAPI connection to the naming master'''
 358         binding_options = "seal"
 359         if int(ctx.lp.get("log level")) >= 4:
 360             binding_options += ",print"
 361         binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
 362         ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
 363         (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)
 364
 365     def create_tmp_samdb(ctx):
 366         '''create a temporary samdb object for schema queries'''
 367         ctx.tmp_schema = Schema(security.dom_sid(ctx.domsid),
 368                                 schemadn=ctx.schema_dn)
 369         ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
 370                               credentials=ctx.creds, lp=ctx.lp, global_schema=False,
 371                               am_rodc=False)
 372         ctx.tmp_samdb.set_schema(ctx.tmp_schema)
 373
 374     def build_DsReplicaAttribute(ctx, attrname, attrvalue):
 375         '''build a DsReplicaAttributeCtr object'''
 376         r = drsuapi.DsReplicaAttribute()
 377         r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
 378         r.value_ctr = 1
 379
 380
 381     def DsAddEntry(ctx, recs):
 382         '''add a record via the DRSUAPI DsAddEntry call'''
 383         if ctx.drsuapi is None:
 384             ctx.drsuapi_connect()
 385         if ctx.tmp_samdb is None:
 386             ctx.create_tmp_samdb()
 387
 388         objects = []
 389         for rec in recs:
 390             id = drsuapi.DsReplicaObjectIdentifier()
 391             id.dn = rec['dn']
 392
 393             attrs = []
 394             for a in rec:
 395                 if a == 'dn':
 396                     continue
 397                 if not isinstance(rec[a], list):
 398                     v = [rec[a]]
 399                 else:
 400                     v = rec[a]
 401                 rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
 402                 attrs.append(rattr)
 403
 404             attribute_ctr = drsuapi.DsReplicaAttributeCtr()
 405             attribute_ctr.num_attributes = len(attrs)
 406             attribute_ctr.attributes = attrs
 407
 408             object = drsuapi.DsReplicaObject()
 409             object.identifier = id
 410             object.attribute_ctr = attribute_ctr
 411
 412             list_object = drsuapi.DsReplicaObjectListItem()
 413             list_object.object = object
 414             objects.append(list_object)
 415
 416         req2 = drsuapi.DsAddEntryRequest2()
 417         req2.first_object = objects[0]
 418         prev = req2.first_object
 419         for o in objects[1:]:
 420             prev.next_object = o
 421             prev = o
 422
 423         (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
 424         if level == 2:
 425             if ctr.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 426                 print("DsAddEntry failed with dir_err %u" % ctr.dir_err)
 427                 raise RuntimeError("DsAddEntry failed")
 428             if ctr.extended_err != (0, 'WERR_OK'):
 429                 print("DsAddEntry failed with status %s info %s" % (ctr.extended_err))
 430                 raise RuntimeError("DsAddEntry failed")
 431         if level == 3:
 432             if ctr.err_ver != 1:
 433                 raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
 434             if ctr.err_data.status != (0, 'WERR_OK'):
 435                 print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
 436                                                                     ctr.err_data.info.extended_err))
 437                 raise RuntimeError("DsAddEntry failed")
 438             if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
 439                 print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
 440                 raise RuntimeError("DsAddEntry failed")
 441
 442         return ctr.objects
 443
 444     def join_add_ntdsdsa(ctx):
 445         '''add the ntdsdsa object'''
 446
 447         print "Adding %s" % ctx.ntds_dn
 448         rec = {
 449             "dn" : ctx.ntds_dn,
 450             "objectclass" : "nTDSDSA",
 451             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 452             "dMDLocation" : ctx.schema_dn}
 453
 454         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 455
 456         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 457             rec["msDS-Behavior-Version"] = str(samba.dsdb.DS_DOMAIN_FUNCTION_2008_R2)
 458
 459         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 460             rec["msDS-HasDomainNCs"] = ctx.base_dn
 461
 462         if ctx.RODC:
 463             rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
 464             rec["msDS-HasFullReplicaNCs"] = ctx.nc_list
 465             rec["options"] = "37"
 466             ctx.samdb.add(rec, ["rodc_join:1:1"])
 467         else:
 468             rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 469             rec["HasMasterNCs"]      = nc_list
 470             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 471                 rec["msDS-HasMasterNCs"] = ctx.nc_list
 472             rec["options"] = "1"
 473             rec["invocationId"] = ndr_pack(ctx.invocation_id)
 474             ctx.DsAddEntry([rec])
 475
 476         # find the GUID of our NTDS DN
 477         res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
 478         ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))
 479
 480     def join_add_objects(ctx):
 481         '''add the various objects needed for the join'''
 482         if ctx.acct_dn:
 483             print "Adding %s" % ctx.acct_dn
 484             rec = {
 485                 "dn" : ctx.acct_dn,
 486                 "objectClass": "computer",
 487                 "displayname": ctx.samname,
 488                 "samaccountname" : ctx.samname,
 489                 "userAccountControl" : str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
 490                 "dnshostname" : ctx.dnshostname}
 491             if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
 492                 rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
 493             elif ctx.promote_existing:
 494                 rec['msDS-SupportedEncryptionTypes'] = []
 495             if ctx.managedby:
 496                 rec["managedby"] = ctx.managedby
 497             elif ctx.promote_existing:
 498                 rec["managedby"] = []
 499
 500             if ctx.never_reveal_sid:
 501                 rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
 502             elif ctx.promote_existing:
 503                 rec["msDS-NeverRevealGroup"] = []
 504
 505             if ctx.reveal_sid:
 506                 rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
 507             elif ctx.promote_existing:
 508                 rec["msDS-RevealOnDemandGroup"] = []
 509
 510             if ctx.promote_existing:
 511                 if ctx.promote_from_dn != ctx.acct_dn:
 512                     ctx.samdb.rename(ctx.promote_from_dn, ctx.acct_dn)
 513                 ctx.samdb.modify(ldb.Message.from_dict(ctx.samdb, rec, ldb.FLAG_MOD_REPLACE))
 514             else:
 515                 ctx.samdb.add(rec)
 516
 517         if ctx.krbtgt_dn:
 518             ctx.add_krbtgt_account()
 519
 520         print "Adding %s" % ctx.server_dn
 521         rec = {
 522             "dn": ctx.server_dn,
 523             "objectclass" : "server",
 524             # windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
 525             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
 526                                 samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
 527                                 samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 528             # windows seems to add the dnsHostName later
 529             "dnsHostName" : ctx.dnshostname}
 530
 531         if ctx.acct_dn:
 532             rec["serverReference"] = ctx.acct_dn
 533
 534         ctx.samdb.add(rec)
 535
 536         if ctx.subdomain:
 537             # the rest is done after replication
 538             ctx.ntds_guid = None
 539             return
 540
 541         ctx.join_add_ntdsdsa()
 542
 543         if ctx.connection_dn is not None:
 544             print "Adding %s" % ctx.connection_dn
 545             rec = {
 546                 "dn" : ctx.connection_dn,
 547                 "objectclass" : "nTDSConnection",
 548                 "enabledconnection" : "TRUE",
 549                 "options" : "65",
 550                 "fromServer" : ctx.dc_ntds_dn}
 551             ctx.samdb.add(rec)
 552
 553         if ctx.acct_dn:
 554             print "Adding SPNs to %s" % ctx.acct_dn
 555             m = ldb.Message()
 556             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 557             for i in range(len(ctx.SPNs)):
 558                 ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
 559             m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
 560                                                            ldb.FLAG_MOD_REPLACE,
 561                                                            "servicePrincipalName")
 562             ctx.samdb.modify(m)
 563
 564             # The account password set operation should normally be done over
 565             # LDAP. Windows 2000 DCs however allow this only with SSL
 566             # connections which are hard to set up and otherwise refuse with
 567             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 568             # over SAMR.
 569             print "Setting account password for %s" % ctx.samname
 570             try:
 571                 ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))"
 572                                       % ldb.binary_encode(ctx.samname),
 573                                       ctx.acct_pass,
 574                                       force_change_at_next_login=False,
 575                                       username=ctx.samname)
 576             except ldb.LdbError, (num, _):
 577                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 578                     pass
 579                 ctx.net.set_password(account_name=ctx.samname,
 580                                      domain_name=ctx.domain_name,
 581                                      newpassword=ctx.acct_pass)
 582
 583             res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE,
 584                                    attrs=["msDS-KeyVersionNumber"])
 585             if "msDS-KeyVersionNumber" in res[0]:
 586                 ctx.key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 587             else:
 588                 ctx.key_version_number = None
 589
 590             print("Enabling account")
 591             m = ldb.Message()
 592             m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
 593             m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
 594                                                          ldb.FLAG_MOD_REPLACE,
 595                                                          "userAccountControl")
 596             ctx.samdb.modify(m)
 597
 598         if ctx.dns_backend.startswith("BIND9_"):
 599             ctx.dnspass = samba.generate_random_password(128, 255)
 600
 601             recs = ctx.samdb.parse_ldif(read_and_sub_file(setup_path("provision_dns_add_samba.ldif"),
 602                                                                 {"DNSDOMAIN": ctx.dnsdomain,
 603                                                                  "DOMAINDN": ctx.base_dn,
 604                                                                  "HOSTNAME" : ctx.myname,
 605                                                                  "DNSPASS_B64": b64encode(ctx.dnspass),
 606                                                                  "DNSNAME" : ctx.dnshostname}))
 607             for changetype, msg in recs:
 608                 assert changetype == ldb.CHANGETYPE_NONE
 609                 dns_acct_dn = msg["dn"]
 610                 print "Adding DNS account %s with dns/ SPN" % msg["dn"]
 611
 612                 # Remove dns password (we will set it as a modify, as we can't do clearTextPassword over LDAP)
 613                 del msg["clearTextPassword"]
 614                 # Remove isCriticalSystemObject for similar reasons, it cannot be set over LDAP
 615                 del msg["isCriticalSystemObject"]
 616                 # Disable account until password is set
 617                 msg["userAccountControl"] = str(samba.dsdb.UF_NORMAL_ACCOUNT |
 618                                                 samba.dsdb.UF_ACCOUNTDISABLE)
 619                 try:
 620                     ctx.samdb.add(msg)
 621                 except ldb.LdbError, (num, _):
 622                     if num != ldb.ERR_ENTRY_ALREADY_EXISTS:
 623                         raise
 624
 625             # The account password set operation should normally be done over
 626             # LDAP. Windows 2000 DCs however allow this only with SSL
 627             # connections which are hard to set up and otherwise refuse with
 628             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 629             # over SAMR.
 630             print "Setting account password for dns-%s" % ctx.myname
 631             try:
 632                 ctx.samdb.setpassword("(&(objectClass=user)(samAccountName=dns-%s))"
 633                                       % ldb.binary_encode(ctx.myname),
 634                                       ctx.dnspass,
 635                                       force_change_at_next_login=False,
 636                                       username=ctx.samname)
 637             except ldb.LdbError, (num, _):
 638                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 639                     raise
 640                 ctx.net.set_password(account_name="dns-%s" % ctx.myname,
 641                                      domain_name=ctx.domain_name,
 642                                      newpassword=ctx.dnspass)
 643
 644             res = ctx.samdb.search(base=dns_acct_dn, scope=ldb.SCOPE_BASE,
 645                                    attrs=["msDS-KeyVersionNumber"])
 646             if "msDS-KeyVersionNumber" in res[0]:
 647                 ctx.dns_key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 648             else:
 649                 ctx.dns_key_version_number = None
 650
 651     def join_add_objects2(ctx):
 652         """add the various objects needed for the join, for subdomains post replication"""
 653
 654         print "Adding %s" % ctx.partition_dn
 655         # NOTE: windows sends a ntSecurityDescriptor here, we
 656         # let it default
 657         rec = {
 658             "dn" : ctx.partition_dn,
 659             "objectclass" : "crossRef",
 660             "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
 661             "nCName" : ctx.base_dn,
 662             "nETBIOSName" : ctx.domain_name,
 663             "dnsRoot": ctx.dnsdomain,
 664             "trustParent" : ctx.parent_partition_dn,
 665             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN)}
 666         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 667             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 668
 669         rec2 = {
 670             "dn" : ctx.ntds_dn,
 671             "objectclass" : "nTDSDSA",
 672             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 673             "dMDLocation" : ctx.schema_dn}
 674
 675         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 676
 677         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 678             rec2["msDS-Behavior-Version"] = str(ctx.behavior_version)
 679
 680         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 681             rec2["msDS-HasDomainNCs"] = ctx.base_dn
 682
 683         rec2["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 684         rec2["HasMasterNCs"]      = nc_list
 685         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 686             rec2["msDS-HasMasterNCs"] = ctx.nc_list
 687         rec2["options"] = "1"
 688         rec2["invocationId"] = ndr_pack(ctx.invocation_id)
 689
 690         objects = ctx.DsAddEntry([rec, rec2])
 691         if len(objects) != 2:
 692             raise DCJoinException("Expected 2 objects from DsAddEntry")
 693
 694         ctx.ntds_guid = objects[1].guid
 695
 696         print("Replicating partition DN")
 697         ctx.repl.replicate(ctx.partition_dn,
 698                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 699                            ctx.ntds_guid,
 700                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 701                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 702
 703         print("Replicating NTDS DN")
 704         ctx.repl.replicate(ctx.ntds_dn,
 705                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 706                            ctx.ntds_guid,
 707                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 708                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 709
 710     def join_provision(ctx):
 711         """Provision the local SAM."""
 712
 713         print "Calling bare provision"
 714
 715         logger = logging.getLogger("provision")
 716         logger.addHandler(logging.StreamHandler(sys.stdout))
 717         smbconf = ctx.lp.configfile
 718
 719         presult = provision(logger, system_session(), None, smbconf=smbconf,
 720                 targetdir=ctx.targetdir, samdb_fill=FILL_DRS, realm=ctx.realm,
 721                 rootdn=ctx.root_dn, domaindn=ctx.base_dn,
 722                 schemadn=ctx.schema_dn, configdn=ctx.config_dn,
 723                 serverdn=ctx.server_dn, domain=ctx.domain_name,
 724                 hostname=ctx.myname, domainsid=ctx.domsid,
 725                 machinepass=ctx.acct_pass, serverrole="domain controller",
 726                 sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
 727                 use_ntvfs=ctx.use_ntvfs, dns_backend=ctx.dns_backend)
 728         print "Provision OK for domain DN %s" % presult.domaindn
 729         ctx.local_samdb = presult.samdb
 730         ctx.lp          = presult.lp
 731         ctx.paths       = presult.paths
 732         ctx.names       = presult.names
 733
 734     def join_provision_own_domain(ctx):
 735         """Provision the local SAM."""
 736
 737         # we now operate exclusively on the local database, which
 738         # we need to reopen in order to get the newly created schema
 739         print("Reconnecting to local samdb")
 740         ctx.samdb = SamDB(url=ctx.local_samdb.url,
 741                           session_info=system_session(),
 742                           lp=ctx.local_samdb.lp,
 743                           global_schema=False)
 744         ctx.samdb.set_invocation_id(str(ctx.invocation_id))
 745         ctx.local_samdb = ctx.samdb
 746
 747         print("Finding domain GUID from ncName")
 748         res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
 749                                      controls=["extended_dn:1:1"])
 750         domguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
 751         print("Got domain GUID %s" % domguid)
 752
 753         print("Calling own domain provision")
 754
 755         logger = logging.getLogger("provision")
 756         logger.addHandler(logging.StreamHandler(sys.stdout))
 757
 758         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 759
 760         presult = provision_fill(ctx.local_samdb, secrets_ldb,
 761                                  logger, ctx.names, ctx.paths, domainsid=security.dom_sid(ctx.domsid),
 762                                  domainguid=domguid,
 763                                  targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
 764                                  machinepass=ctx.acct_pass, serverrole="domain controller",
 765                                  lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
 766                                  dns_backend=ctx.dns_backend)
 767         print("Provision OK for domain %s" % ctx.names.dnsdomain)
 768
 769     def join_replicate(ctx):
 770         """Replicate the SAM."""
 771
 772         print "Starting replication"
 773         ctx.local_samdb.transaction_start()
 774         try:
 775             source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
 776             if ctx.ntds_guid is None:
 777                 print("Using DS_BIND_GUID_W2K3")
 778                 destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
 779             else:
 780                 destination_dsa_guid = ctx.ntds_guid
 781
 782             if ctx.RODC:
 783                 repl_creds = Credentials()
 784                 repl_creds.guess(ctx.lp)
 785                 repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
 786                 repl_creds.set_username(ctx.samname)
 787                 repl_creds.set_password(ctx.acct_pass)
 788             else:
 789                 repl_creds = ctx.creds
 790
 791             binding_options = "seal"
 792             if int(ctx.lp.get("log level")) >= 5:
 793                 binding_options += ",print"
 794             repl = drs_utils.drs_Replicate(
 795                 "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 796                 ctx.lp, repl_creds, ctx.local_samdb, ctx.invocation_id)
 797
 798             repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
 799                     destination_dsa_guid, schema=True, rodc=ctx.RODC,
 800                     replica_flags=ctx.replica_flags)
 801             repl.replicate(ctx.config_dn, source_dsa_invocation_id,
 802                     destination_dsa_guid, rodc=ctx.RODC,
 803                     replica_flags=ctx.replica_flags)
 804             if not ctx.subdomain:
 805                 # Replicate first the critical object for the basedn
 806                 if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
 807                     print "Replicating critical objects from the base DN of the domain"
 808                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 809                     repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 810                                 destination_dsa_guid, rodc=ctx.RODC,
 811                                 replica_flags=ctx.domain_replica_flags)
 812                     ctx.domain_replica_flags ^= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 813                 else:
 814                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_GET_ANC
 815                 repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 816                                destination_dsa_guid, rodc=ctx.RODC,
 817                                replica_flags=ctx.domain_replica_flags)
 818             print "Done with always replicated NC (base, config, schema)"
 819
 820             for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
 821                 if nc in ctx.nc_list:
 822                     print "Replicating %s" % (str(nc))
 823                     repl.replicate(nc, source_dsa_invocation_id,
 824                                     destination_dsa_guid, rodc=ctx.RODC,
 825                                     replica_flags=ctx.replica_flags)
 826
 827             if 'DC=ForestDnsZones,%s' % ctx.root_dn in ctx.nc_list:
 828                 repl.replicate('DC=ForestDnsZones,%s' % ctx.root_dn, source_dsa_invocation_id,
 829                                destination_dsa_guid, rodc=ctx.RODC,
 830                                replica_flags=ctx.replica_flags)
 831             # FIXME At this point we should add an entry in the forestdns and domaindns NC
 832             # (those under CN=Partions,DC=...)
 833             # in order to indicate that we hold a replica for this NC
 834
 835             if ctx.RODC:
 836                 repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
 837                         destination_dsa_guid,
 838                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 839                 repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
 840                         destination_dsa_guid,
 841                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 842             ctx.repl = repl
 843             ctx.source_dsa_invocation_id = source_dsa_invocation_id
 844             ctx.destination_dsa_guid = destination_dsa_guid
 845
 846             print "Committing SAM database"
 847         except:
 848             ctx.local_samdb.transaction_cancel()
 849             raise
 850         else:
 851             ctx.local_samdb.transaction_commit()
 852
 853     def send_DsReplicaUpdateRefs(ctx, dn):
 854         r = drsuapi.DsReplicaUpdateRefsRequest1()
 855         r.naming_context = drsuapi.DsReplicaObjectIdentifier()
 856         r.naming_context.dn = str(dn)
 857         r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
 858         r.naming_context.sid = security.dom_sid("S-0-0")
 859         r.dest_dsa_guid = ctx.ntds_guid
 860         r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
 861         r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
 862         if not ctx.RODC:
 863             r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
 864
 865         if ctx.drsuapi:
 866             ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
 867
 868     def join_finalise(ctx):
 869         """Finalise the join, mark us synchronised and setup secrets db."""
 870
 871         logger = logging.getLogger("provision")
 872         logger.addHandler(logging.StreamHandler(sys.stdout))
 873
 874         # FIXME we shouldn't do this in all cases
 875         # If for some reasons we joined in another site than the one of
 876         # DC we just replicated from then we don't need to send the updatereplicateref
 877         # as replication between sites is time based and on the initiative of the
 878         # requesting DC
 879         print "Sending DsReplicateUpdateRefs for all the replicated partitions"
 880         for nc in ctx.full_nc_list:
 881             ctx.send_DsReplicaUpdateRefs(nc)
 882
 883         if ctx.RODC:
 884             print "Setting RODC invocationId"
 885             ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
 886             ctx.local_samdb.set_opaque_integer("domainFunctionality",
 887                                                ctx.behavior_version)
 888             m = ldb.Message()
 889             m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
 890             m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
 891                                                    ldb.FLAG_MOD_REPLACE,
 892                                                    "invocationId")
 893             ctx.local_samdb.modify(m)
 894
 895             # Note: as RODC the invocationId is only stored
 896             # on the RODC itself, the other DCs never see it.
 897             #
 898             # Thats is why we fix up the replPropertyMetaData stamp
 899             # for the 'invocationId' attribute, we need to change
 900             # the 'version' to '0', this is what windows 2008r2 does as RODC
 901             #
 902             # This means if the object on a RWDC ever gets a invocationId
 903             # attribute, it will have version '1' (or higher), which will
 904             # will overwrite the RODC local value.
 905             ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
 906                                                                "invocationId",
 907                                                                0)
 908
 909         print "Setting isSynchronized and dsServiceName"
 910         m = ldb.Message()
 911         m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
 912         m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
 913         m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
 914                                                 ldb.FLAG_MOD_REPLACE, "dsServiceName")
 915         ctx.local_samdb.modify(m)
 916
 917         if ctx.subdomain:
 918             return
 919
 920         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 921
 922         print "Setting up secrets database"
 923         secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
 924                             realm=ctx.realm,
 925                             dnsdomain=ctx.dnsdomain,
 926                             netbiosname=ctx.myname,
 927                             domainsid=security.dom_sid(ctx.domsid),
 928                             machinepass=ctx.acct_pass,
 929                             secure_channel_type=ctx.secure_channel_type,
 930                             key_version_number=ctx.key_version_number)
 931
 932         if ctx.dns_backend.startswith("BIND9_"):
 933             setup_bind9_dns(ctx.local_samdb, secrets_ldb, security.dom_sid(ctx.domsid),
 934                             ctx.names, ctx.paths, ctx.lp, logger,
 935                             dns_backend=ctx.dns_backend,
 936                             dnspass=ctx.dnspass, os_level=ctx.behavior_version,
 937                             targetdir=ctx.targetdir,
 938                             key_version_number=ctx.dns_key_version_number)
 939
 940     def join_setup_trusts(ctx):
 941         """provision the local SAM."""
 942
 943         def arcfour_encrypt(key, data):
 944             from Crypto.Cipher import ARC4
 945             c = ARC4.new(key)
 946             return c.encrypt(data)
 947
 948         def string_to_array(string):
 949             blob = [0] * len(string)
 950
 951             for i in range(len(string)):
 952                 blob[i] = ord(string[i])
 953
 954             return blob
 955
 956         print "Setup domain trusts with server %s" % ctx.server
 957         binding_options = ""  # why doesn't signing work here? w2k8r2 claims no session key
 958         lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
 959                              ctx.lp, ctx.creds)
 960
 961         objectAttr = lsa.ObjectAttribute()
 962         objectAttr.sec_qos = lsa.QosInfo()
 963
 964         pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 965                                          objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 966
 967         info = lsa.TrustDomainInfoInfoEx()
 968         info.domain_name.string = ctx.dnsdomain
 969         info.netbios_name.string = ctx.domain_name
 970         info.sid = security.dom_sid(ctx.domsid)
 971         info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
 972         info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
 973         info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
 974
 975         try:
 976             oldname = lsa.String()
 977             oldname.string = ctx.dnsdomain
 978             oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
 979                                                            lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 980             print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
 981             lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
 982         except RuntimeError:
 983             pass
 984
 985         password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))
 986
 987         clear_value = drsblobs.AuthInfoClear()
 988         clear_value.size = len(password_blob)
 989         clear_value.password = password_blob
 990
 991         clear_authentication_information = drsblobs.AuthenticationInformation()
 992         clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
 993         clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
 994         clear_authentication_information.AuthInfo = clear_value
 995
 996         authentication_information_array = drsblobs.AuthenticationInformationArray()
 997         authentication_information_array.count = 1
 998         authentication_information_array.array = [clear_authentication_information]
 999
1000         outgoing = drsblobs.trustAuthInOutBlob()
1001         outgoing.count = 1
1002         outgoing.current = authentication_information_array
1003
1004         trustpass = drsblobs.trustDomainPasswords()
1005         confounder = [3] * 512
1006
1007         for i in range(512):
1008             confounder[i] = random.randint(0, 255)
1009
1010         trustpass.confounder = confounder
1011
1012         trustpass.outgoing = outgoing
1013         trustpass.incoming = outgoing
1014
1015         trustpass_blob = ndr_pack(trustpass)
1016
1017         encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
1018
1019         auth_blob = lsa.DATA_BUF2()
1020         auth_blob.size = len(encrypted_trustpass)
1021         auth_blob.data = string_to_array(encrypted_trustpass)
1022
1023         auth_info = lsa.TrustDomainInfoAuthInfoInternal()
1024         auth_info.auth_blob = auth_blob
1025
1026         trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
1027                                                          info,
1028                                                          auth_info,
1029                                                          security.SEC_STD_DELETE)
1030
1031         rec = {
1032             "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
1033             "objectclass" : "trustedDomain",
1034             "trustType" : str(info.trust_type),
1035             "trustAttributes" : str(info.trust_attributes),
1036             "trustDirection" : str(info.trust_direction),
1037             "flatname" : ctx.forest_domain_name,
1038             "trustPartner" : ctx.dnsforest,
1039             "trustAuthIncoming" : ndr_pack(outgoing),
1040             "trustAuthOutgoing" : ndr_pack(outgoing)
1041             }
1042         ctx.local_samdb.add(rec)
1043
1044         rec = {
1045             "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
1046             "objectclass" : "user",
1047             "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
1048             "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le')
1049             }
1050         ctx.local_samdb.add(rec)
1051
1052
1053     def do_join(ctx):
1054         # full_nc_list is the list of naming context (NC) for which we will
1055         # send a updateRef command to the partner DC
1056         ctx.nc_list = [ ctx.config_dn, ctx.schema_dn ]
1057         ctx.full_nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
1058
1059         if not ctx.subdomain:
1060             ctx.nc_list += [ctx.base_dn]
1061             if ctx.dns_backend != "NONE":
1062                 ctx.nc_list += [ctx.domaindns_zone]
1063
1064         if ctx.dns_backend != "NONE":
1065             ctx.full_nc_list += ['DC=DomainDnsZones,%s' % ctx.base_dn]
1066             ctx.full_nc_list += ['DC=ForestDnsZones,%s' % ctx.root_dn]
1067             ctx.nc_list += ['DC=ForestDnsZones,%s' % ctx.root_dn]
1068
1069         if ctx.promote_existing:
1070             ctx.promote_possible()
1071         else:
1072             ctx.cleanup_old_join()
1073
1074         try:
1075             ctx.join_add_objects()
1076             ctx.join_provision()
1077             ctx.join_replicate()
1078             if ctx.subdomain:
1079                 ctx.join_add_objects2()
1080                 ctx.join_provision_own_domain()
1081                 ctx.join_setup_trusts()
1082             ctx.join_finalise()
1083         except:
1084             print "Join failed - cleaning up"
1085             ctx.cleanup_old_join()
1086             raise
1087
1088
1089 def join_RODC(server=None, creds=None, lp=None, site=None, netbios_name=None,
1090               targetdir=None, domain=None, domain_critical_only=False,
1091               machinepass=None, use_ntvfs=False, dns_backend=None,
1092               promote_existing=False):
1093     """Join as a RODC."""
1094
1095     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
1096                   machinepass, use_ntvfs, dns_backend, promote_existing)
1097
1098     lp.set("workgroup", ctx.domain_name)
1099     print("workgroup is %s" % ctx.domain_name)
1100
1101     lp.set("realm", ctx.realm)
1102     print("realm is %s" % ctx.realm)
1103
1104     ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
1105
1106     # setup some defaults for accounts that should be replicated to this RODC
1107     ctx.never_reveal_sid = [
1108         "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
1109         "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
1110         "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
1111         "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
1112         "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS]
1113     ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
1114
1115     mysid = ctx.get_mysid()
1116     admin_dn = "<SID=%s>" % mysid
1117     ctx.managedby = admin_dn
1118
1119     ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
1120                               samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
1121                               samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
1122
1123     ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
1124                       "RestrictedKrbHost/%s" % ctx.dnshostname ])
1125
1126     ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
1127     ctx.secure_channel_type = misc.SEC_CHAN_RODC
1128     ctx.RODC = True
1129     ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
1130                            drsuapi.DRSUAPI_DRS_PER_SYNC |
1131                            drsuapi.DRSUAPI_DRS_GET_ANC |
1132                            drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
1133                            drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
1134                            drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
1135     ctx.domain_replica_flags = ctx.replica_flags
1136     if domain_critical_only:
1137         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1138
1139     ctx.do_join()
1140
1141     print "Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid)
1142
1143
1144 def join_DC(server=None, creds=None, lp=None, site=None, netbios_name=None,
1145             targetdir=None, domain=None, domain_critical_only=False,
1146             machinepass=None, use_ntvfs=False, dns_backend=None,
1147             promote_existing=False):
1148     """Join as a DC."""
1149     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
1150                   machinepass, use_ntvfs, dns_backend, promote_existing)
1151
1152     lp.set("workgroup", ctx.domain_name)
1153     print("workgroup is %s" % ctx.domain_name)
1154
1155     lp.set("realm", ctx.realm)
1156     print("realm is %s" % ctx.realm)
1157
1158     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1159
1160     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1161     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1162
1163     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1164                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1165                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1166                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1167                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1168     ctx.domain_replica_flags = ctx.replica_flags
1169     if domain_critical_only:
1170         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1171
1172     ctx.do_join()
1173     print "Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)
1174
1175 def join_subdomain(server=None, creds=None, lp=None, site=None,
1176         netbios_name=None, targetdir=None, parent_domain=None, dnsdomain=None,
1177         netbios_domain=None, machinepass=None, use_ntvfs=False,
1178         dns_backend=None):
1179     """Join as a DC."""
1180     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, parent_domain,
1181                   machinepass, use_ntvfs, dns_backend)
1182     ctx.subdomain = True
1183     ctx.parent_domain_name = ctx.domain_name
1184     ctx.domain_name = netbios_domain
1185     ctx.realm = dnsdomain
1186     ctx.parent_dnsdomain = ctx.dnsdomain
1187     ctx.parent_partition_dn = ctx.get_parent_partition_dn()
1188     ctx.dnsdomain = dnsdomain
1189     ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
1190     ctx.naming_master = ctx.get_naming_master()
1191     if ctx.naming_master != ctx.server:
1192         print("Reconnecting to naming master %s" % ctx.naming_master)
1193         ctx.server = ctx.naming_master
1194         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
1195                           session_info=system_session(),
1196                           credentials=ctx.creds, lp=ctx.lp)
1197
1198     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
1199     ctx.domsid = str(security.random_sid())
1200     ctx.acct_dn = None
1201     ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
1202     ctx.trustdom_pass = samba.generate_random_password(128, 128)
1203
1204     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1205
1206     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1207     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1208
1209     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1210                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1211                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1212                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1213                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1214     ctx.domain_replica_flags = ctx.replica_flags
1215
1216     ctx.do_join()
1217     print "Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)