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, 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                 print "Adding DNS account %s with dns/ SPN" % msg["dn"]
 610
 611                 # Remove dns password (we will set it as a modify, as we can't do clearTextPassword over LDAP)
 612                 del msg["clearTextPassword"]
 613                 # Remove isCriticalSystemObject for similar reasons, it cannot be set over LDAP
 614                 del msg["isCriticalSystemObject"]
 615                 try:
 616                     ctx.samdb.add(msg)
 617                     dns_acct_dn = msg["dn"]
 618                 except ldb.LdbError, (num, _):
 619                     if num != ldb.ERR_ENTRY_ALREADY_EXISTS:
 620                         raise
 621
 622             # The account password set operation should normally be done over
 623             # LDAP. Windows 2000 DCs however allow this only with SSL
 624             # connections which are hard to set up and otherwise refuse with
 625             # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
 626             # over SAMR.
 627             print "Setting account password for %s" % ctx.samname
 628             try:
 629                 ctx.samdb.setpassword("(&(objectClass=user)(samAccountName=dns-%s))"
 630                                       % ldb.binary_encode(ctx.myname),
 631                                       ctx.dnspass,
 632                                       force_change_at_next_login=False,
 633                                       username=ctx.samname)
 634             except ldb.LdbError, (num, _):
 635                 if num != ldb.ERR_UNWILLING_TO_PERFORM:
 636                     pass
 637                 ctx.net.set_password(account_name="dns-" % ctx.myname,
 638                                      domain_name=ctx.domain_name,
 639                                      newpassword=ctx.dnspass)
 640
 641             res = ctx.samdb.search(base=dns_acct_dn, scope=ldb.SCOPE_BASE,
 642                                    attrs=["msDS-KeyVersionNumber"])
 643             if "msDS-KeyVersionNumber" in res[0]:
 644                 ctx.dns_key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
 645             else:
 646                 ctx.dns_key_version_number = None
 647
 648     def join_add_objects2(ctx):
 649         """add the various objects needed for the join, for subdomains post replication"""
 650
 651         print "Adding %s" % ctx.partition_dn
 652         # NOTE: windows sends a ntSecurityDescriptor here, we
 653         # let it default
 654         rec = {
 655             "dn" : ctx.partition_dn,
 656             "objectclass" : "crossRef",
 657             "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
 658             "nCName" : ctx.base_dn,
 659             "nETBIOSName" : ctx.domain_name,
 660             "dnsRoot": ctx.dnsdomain,
 661             "trustParent" : ctx.parent_partition_dn,
 662             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN)}
 663         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 664             rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
 665
 666         rec2 = {
 667             "dn" : ctx.ntds_dn,
 668             "objectclass" : "nTDSDSA",
 669             "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
 670             "dMDLocation" : ctx.schema_dn}
 671
 672         nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
 673
 674         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 675             rec2["msDS-Behavior-Version"] = str(ctx.behavior_version)
 676
 677         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 678             rec2["msDS-HasDomainNCs"] = ctx.base_dn
 679
 680         rec2["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
 681         rec2["HasMasterNCs"]      = nc_list
 682         if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
 683             rec2["msDS-HasMasterNCs"] = ctx.nc_list
 684         rec2["options"] = "1"
 685         rec2["invocationId"] = ndr_pack(ctx.invocation_id)
 686
 687         objects = ctx.DsAddEntry([rec, rec2])
 688         if len(objects) != 2:
 689             raise DCJoinException("Expected 2 objects from DsAddEntry")
 690
 691         ctx.ntds_guid = objects[1].guid
 692
 693         print("Replicating partition DN")
 694         ctx.repl.replicate(ctx.partition_dn,
 695                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 696                            ctx.ntds_guid,
 697                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 698                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 699
 700         print("Replicating NTDS DN")
 701         ctx.repl.replicate(ctx.ntds_dn,
 702                            misc.GUID("00000000-0000-0000-0000-000000000000"),
 703                            ctx.ntds_guid,
 704                            exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
 705                            replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
 706
 707     def join_provision(ctx):
 708         """Provision the local SAM."""
 709
 710         print "Calling bare provision"
 711
 712         logger = logging.getLogger("provision")
 713         logger.addHandler(logging.StreamHandler(sys.stdout))
 714         smbconf = ctx.lp.configfile
 715
 716         presult = provision(logger, system_session(), None, smbconf=smbconf,
 717                 targetdir=ctx.targetdir, samdb_fill=FILL_DRS, realm=ctx.realm,
 718                 rootdn=ctx.root_dn, domaindn=ctx.base_dn,
 719                 schemadn=ctx.schema_dn, configdn=ctx.config_dn,
 720                 serverdn=ctx.server_dn, domain=ctx.domain_name,
 721                 hostname=ctx.myname, domainsid=ctx.domsid,
 722                 machinepass=ctx.acct_pass, serverrole="domain controller",
 723                 sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
 724                 use_ntvfs=ctx.use_ntvfs, dns_backend=ctx.dns_backend)
 725         print "Provision OK for domain DN %s" % presult.domaindn
 726         ctx.local_samdb = presult.samdb
 727         ctx.lp          = presult.lp
 728         ctx.paths       = presult.paths
 729         ctx.names       = presult.names
 730
 731     def join_provision_own_domain(ctx):
 732         """Provision the local SAM."""
 733
 734         # we now operate exclusively on the local database, which
 735         # we need to reopen in order to get the newly created schema
 736         print("Reconnecting to local samdb")
 737         ctx.samdb = SamDB(url=ctx.local_samdb.url,
 738                           session_info=system_session(),
 739                           lp=ctx.local_samdb.lp,
 740                           global_schema=False)
 741         ctx.samdb.set_invocation_id(str(ctx.invocation_id))
 742         ctx.local_samdb = ctx.samdb
 743
 744         print("Finding domain GUID from ncName")
 745         res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
 746                                      controls=["extended_dn:1:1"])
 747         domguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
 748         print("Got domain GUID %s" % domguid)
 749
 750         print("Calling own domain provision")
 751
 752         logger = logging.getLogger("provision")
 753         logger.addHandler(logging.StreamHandler(sys.stdout))
 754
 755         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 756
 757         presult = provision_fill(ctx.local_samdb, secrets_ldb,
 758                                  logger, ctx.names, ctx.paths, domainsid=security.dom_sid(ctx.domsid),
 759                                  domainguid=domguid,
 760                                  targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
 761                                  machinepass=ctx.acct_pass, serverrole="domain controller",
 762                                  lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
 763                                  dns_backend=ctx.dns_backend)
 764         print("Provision OK for domain %s" % ctx.names.dnsdomain)
 765
 766     def join_replicate(ctx):
 767         """Replicate the SAM."""
 768
 769         print "Starting replication"
 770         ctx.local_samdb.transaction_start()
 771         try:
 772             source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
 773             if ctx.ntds_guid is None:
 774                 print("Using DS_BIND_GUID_W2K3")
 775                 destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
 776             else:
 777                 destination_dsa_guid = ctx.ntds_guid
 778
 779             if ctx.RODC:
 780                 repl_creds = Credentials()
 781                 repl_creds.guess(ctx.lp)
 782                 repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
 783                 repl_creds.set_username(ctx.samname)
 784                 repl_creds.set_password(ctx.acct_pass)
 785             else:
 786                 repl_creds = ctx.creds
 787
 788             binding_options = "seal"
 789             if int(ctx.lp.get("log level")) >= 5:
 790                 binding_options += ",print"
 791             repl = drs_utils.drs_Replicate(
 792                 "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
 793                 ctx.lp, repl_creds, ctx.local_samdb)
 794
 795             repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
 796                     destination_dsa_guid, schema=True, rodc=ctx.RODC,
 797                     replica_flags=ctx.replica_flags)
 798             repl.replicate(ctx.config_dn, source_dsa_invocation_id,
 799                     destination_dsa_guid, rodc=ctx.RODC,
 800                     replica_flags=ctx.replica_flags)
 801             if not ctx.subdomain:
 802                 # Replicate first the critical object for the basedn
 803                 if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
 804                     print "Replicating critical objects from the base DN of the domain"
 805                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 806                     repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 807                                 destination_dsa_guid, rodc=ctx.RODC,
 808                                 replica_flags=ctx.domain_replica_flags)
 809                     ctx.domain_replica_flags ^= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
 810                 else:
 811                     ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_GET_ANC
 812                 repl.replicate(ctx.base_dn, source_dsa_invocation_id,
 813                                destination_dsa_guid, rodc=ctx.RODC,
 814                                replica_flags=ctx.domain_replica_flags)
 815             print "Done with always replicated NC (base, config, schema)"
 816
 817             for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
 818                 if nc in ctx.nc_list:
 819                     print "Replicating %s" % (str(nc))
 820                     repl.replicate(nc, source_dsa_invocation_id,
 821                                     destination_dsa_guid, rodc=ctx.RODC,
 822                                     replica_flags=ctx.replica_flags)
 823
 824             if 'DC=ForestDnsZones,%s' % ctx.root_dn in ctx.nc_list:
 825                 repl.replicate('DC=ForestDnsZones,%s' % ctx.root_dn, source_dsa_invocation_id,
 826                                destination_dsa_guid, rodc=ctx.RODC,
 827                                replica_flags=ctx.replica_flags)
 828             # FIXME At this point we should add an entry in the forestdns and domaindns NC
 829             # (those under CN=Partions,DC=...)
 830             # in order to indicate that we hold a replica for this NC
 831
 832             if ctx.RODC:
 833                 repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
 834                         destination_dsa_guid,
 835                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 836                 repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
 837                         destination_dsa_guid,
 838                         exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 839             ctx.repl = repl
 840             ctx.source_dsa_invocation_id = source_dsa_invocation_id
 841             ctx.destination_dsa_guid = destination_dsa_guid
 842
 843             print "Committing SAM database"
 844         except:
 845             ctx.local_samdb.transaction_cancel()
 846             raise
 847         else:
 848             ctx.local_samdb.transaction_commit()
 849
 850     def send_DsReplicaUpdateRefs(ctx, dn):
 851         r = drsuapi.DsReplicaUpdateRefsRequest1()
 852         r.naming_context = drsuapi.DsReplicaObjectIdentifier()
 853         r.naming_context.dn = str(dn)
 854         r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
 855         r.naming_context.sid = security.dom_sid("S-0-0")
 856         r.dest_dsa_guid = ctx.ntds_guid
 857         r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
 858         r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
 859         if not ctx.RODC:
 860             r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
 861
 862         if ctx.drsuapi:
 863             ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
 864
 865     def join_finalise(ctx):
 866         """Finalise the join, mark us synchronised and setup secrets db."""
 867
 868         logger = logging.getLogger("provision")
 869         logger.addHandler(logging.StreamHandler(sys.stdout))
 870
 871         # FIXME we shouldn't do this in all cases
 872         # If for some reasons we joined in another site than the one of
 873         # DC we just replicated from then we don't need to send the updatereplicateref
 874         # as replication between sites is time based and on the initiative of the
 875         # requesting DC
 876         print "Sending DsReplicateUpdateRefs for all the replicated partitions"
 877         for nc in ctx.full_nc_list:
 878             ctx.send_DsReplicaUpdateRefs(nc)
 879
 880         if ctx.RODC:
 881             print "Setting RODC invocationId"
 882             ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
 883             ctx.local_samdb.set_opaque_integer("domainFunctionality",
 884                                                ctx.behavior_version)
 885             m = ldb.Message()
 886             m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
 887             m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
 888                                                    ldb.FLAG_MOD_REPLACE,
 889                                                    "invocationId")
 890             ctx.local_samdb.modify(m)
 891
 892             # Note: as RODC the invocationId is only stored
 893             # on the RODC itself, the other DCs never see it.
 894             #
 895             # Thats is why we fix up the replPropertyMetaData stamp
 896             # for the 'invocationId' attribute, we need to change
 897             # the 'version' to '0', this is what windows 2008r2 does as RODC
 898             #
 899             # This means if the object on a RWDC ever gets a invocationId
 900             # attribute, it will have version '1' (or higher), which will
 901             # will overwrite the RODC local value.
 902             ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
 903                                                                "invocationId",
 904                                                                0)
 905
 906         print "Setting isSynchronized and dsServiceName"
 907         m = ldb.Message()
 908         m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
 909         m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
 910         m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
 911                                                 ldb.FLAG_MOD_REPLACE, "dsServiceName")
 912         ctx.local_samdb.modify(m)
 913
 914         if ctx.subdomain:
 915             return
 916
 917         secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
 918
 919         print "Setting up secrets database"
 920         secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
 921                             realm=ctx.realm,
 922                             dnsdomain=ctx.dnsdomain,
 923                             netbiosname=ctx.myname,
 924                             domainsid=security.dom_sid(ctx.domsid),
 925                             machinepass=ctx.acct_pass,
 926                             secure_channel_type=ctx.secure_channel_type,
 927                             key_version_number=ctx.key_version_number)
 928
 929         if ctx.dns_backend.startswith("BIND9_"):
 930             setup_bind9_dns(ctx.local_samdb, secrets_ldb, security.dom_sid(ctx.domsid),
 931                             ctx.names, ctx.paths, ctx.lp, logger,
 932                             dns_backend=ctx.dns_backend,
 933                             dnspass=ctx.dnspass, os_level=ctx.behavior_version,
 934                             targetdir=ctx.targetdir,
 935                             key_version_number=ctx.dns_key_version_number)
 936
 937     def join_setup_trusts(ctx):
 938         """provision the local SAM."""
 939
 940         def arcfour_encrypt(key, data):
 941             from Crypto.Cipher import ARC4
 942             c = ARC4.new(key)
 943             return c.encrypt(data)
 944
 945         def string_to_array(string):
 946             blob = [0] * len(string)
 947
 948             for i in range(len(string)):
 949                 blob[i] = ord(string[i])
 950
 951             return blob
 952
 953         print "Setup domain trusts with server %s" % ctx.server
 954         binding_options = ""  # why doesn't signing work here? w2k8r2 claims no session key
 955         lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
 956                              ctx.lp, ctx.creds)
 957
 958         objectAttr = lsa.ObjectAttribute()
 959         objectAttr.sec_qos = lsa.QosInfo()
 960
 961         pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
 962                                          objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
 963
 964         info = lsa.TrustDomainInfoInfoEx()
 965         info.domain_name.string = ctx.dnsdomain
 966         info.netbios_name.string = ctx.domain_name
 967         info.sid = security.dom_sid(ctx.domsid)
 968         info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
 969         info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
 970         info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
 971
 972         try:
 973             oldname = lsa.String()
 974             oldname.string = ctx.dnsdomain
 975             oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
 976                                                            lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
 977             print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
 978             lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
 979         except RuntimeError:
 980             pass
 981
 982         password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))
 983
 984         clear_value = drsblobs.AuthInfoClear()
 985         clear_value.size = len(password_blob)
 986         clear_value.password = password_blob
 987
 988         clear_authentication_information = drsblobs.AuthenticationInformation()
 989         clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
 990         clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
 991         clear_authentication_information.AuthInfo = clear_value
 992
 993         authentication_information_array = drsblobs.AuthenticationInformationArray()
 994         authentication_information_array.count = 1
 995         authentication_information_array.array = [clear_authentication_information]
 996
 997         outgoing = drsblobs.trustAuthInOutBlob()
 998         outgoing.count = 1
 999         outgoing.current = authentication_information_array
1000
1001         trustpass = drsblobs.trustDomainPasswords()
1002         confounder = [3] * 512
1003
1004         for i in range(512):
1005             confounder[i] = random.randint(0, 255)
1006
1007         trustpass.confounder = confounder
1008
1009         trustpass.outgoing = outgoing
1010         trustpass.incoming = outgoing
1011
1012         trustpass_blob = ndr_pack(trustpass)
1013
1014         encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
1015
1016         auth_blob = lsa.DATA_BUF2()
1017         auth_blob.size = len(encrypted_trustpass)
1018         auth_blob.data = string_to_array(encrypted_trustpass)
1019
1020         auth_info = lsa.TrustDomainInfoAuthInfoInternal()
1021         auth_info.auth_blob = auth_blob
1022
1023         trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
1024                                                          info,
1025                                                          auth_info,
1026                                                          security.SEC_STD_DELETE)
1027
1028         rec = {
1029             "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
1030             "objectclass" : "trustedDomain",
1031             "trustType" : str(info.trust_type),
1032             "trustAttributes" : str(info.trust_attributes),
1033             "trustDirection" : str(info.trust_direction),
1034             "flatname" : ctx.forest_domain_name,
1035             "trustPartner" : ctx.dnsforest,
1036             "trustAuthIncoming" : ndr_pack(outgoing),
1037             "trustAuthOutgoing" : ndr_pack(outgoing)
1038             }
1039         ctx.local_samdb.add(rec)
1040
1041         rec = {
1042             "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
1043             "objectclass" : "user",
1044             "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
1045             "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le')
1046             }
1047         ctx.local_samdb.add(rec)
1048
1049
1050     def do_join(ctx):
1051         # full_nc_list is the list of naming context (NC) for which we will
1052         # send a updateRef command to the partner DC
1053         ctx.nc_list = [ ctx.config_dn, ctx.schema_dn ]
1054         ctx.full_nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
1055
1056         if not ctx.subdomain:
1057             ctx.nc_list += [ctx.base_dn]
1058             if ctx.dns_backend != "NONE":
1059                 ctx.nc_list += [ctx.domaindns_zone]
1060
1061         if ctx.dns_backend != "NONE":
1062             ctx.full_nc_list += ['DC=DomainDnsZones,%s' % ctx.base_dn]
1063             ctx.full_nc_list += ['DC=ForestDnsZones,%s' % ctx.root_dn]
1064             ctx.nc_list += ['DC=ForestDnsZones,%s' % ctx.root_dn]
1065
1066         if ctx.promote_existing:
1067             ctx.promote_possible()
1068         else:
1069             ctx.cleanup_old_join()
1070
1071         try:
1072             ctx.join_add_objects()
1073             ctx.join_provision()
1074             ctx.join_replicate()
1075             if ctx.subdomain:
1076                 ctx.join_add_objects2()
1077                 ctx.join_provision_own_domain()
1078                 ctx.join_setup_trusts()
1079             ctx.join_finalise()
1080         except:
1081             print "Join failed - cleaning up"
1082             ctx.cleanup_old_join()
1083             raise
1084
1085
1086 def join_RODC(server=None, creds=None, lp=None, site=None, netbios_name=None,
1087               targetdir=None, domain=None, domain_critical_only=False,
1088               machinepass=None, use_ntvfs=False, dns_backend=None,
1089               promote_existing=False):
1090     """Join as a RODC."""
1091
1092     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
1093                   machinepass, use_ntvfs, dns_backend, promote_existing)
1094
1095     lp.set("workgroup", ctx.domain_name)
1096     print("workgroup is %s" % ctx.domain_name)
1097
1098     lp.set("realm", ctx.realm)
1099     print("realm is %s" % ctx.realm)
1100
1101     ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
1102
1103     # setup some defaults for accounts that should be replicated to this RODC
1104     ctx.never_reveal_sid = [
1105         "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
1106         "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
1107         "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
1108         "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
1109         "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS]
1110     ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
1111
1112     mysid = ctx.get_mysid()
1113     admin_dn = "<SID=%s>" % mysid
1114     ctx.managedby = admin_dn
1115
1116     ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
1117                               samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
1118                               samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
1119
1120     ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
1121                       "RestrictedKrbHost/%s" % ctx.dnshostname ])
1122
1123     ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
1124     ctx.secure_channel_type = misc.SEC_CHAN_RODC
1125     ctx.RODC = True
1126     ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
1127                            drsuapi.DRSUAPI_DRS_PER_SYNC |
1128                            drsuapi.DRSUAPI_DRS_GET_ANC |
1129                            drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
1130                            drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
1131                            drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
1132     ctx.domain_replica_flags = ctx.replica_flags
1133     if domain_critical_only:
1134         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1135
1136     ctx.do_join()
1137
1138     print "Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid)
1139
1140
1141 def join_DC(server=None, creds=None, lp=None, site=None, netbios_name=None,
1142             targetdir=None, domain=None, domain_critical_only=False,
1143             machinepass=None, use_ntvfs=False, dns_backend=None,
1144             promote_existing=False):
1145     """Join as a DC."""
1146     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain,
1147                   machinepass, use_ntvfs, dns_backend, promote_existing)
1148
1149     lp.set("workgroup", ctx.domain_name)
1150     print("workgroup is %s" % ctx.domain_name)
1151
1152     lp.set("realm", ctx.realm)
1153     print("realm is %s" % ctx.realm)
1154
1155     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1156
1157     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1158     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1159
1160     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1161                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1162                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1163                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1164                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1165     ctx.domain_replica_flags = ctx.replica_flags
1166     if domain_critical_only:
1167         ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
1168
1169     ctx.do_join()
1170     print "Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)
1171
1172 def join_subdomain(server=None, creds=None, lp=None, site=None,
1173         netbios_name=None, targetdir=None, parent_domain=None, dnsdomain=None,
1174         netbios_domain=None, machinepass=None, use_ntvfs=False,
1175         dns_backend=None):
1176     """Join as a DC."""
1177     ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, parent_domain,
1178                   machinepass, use_ntvfs, dns_backend)
1179     ctx.subdomain = True
1180     ctx.parent_domain_name = ctx.domain_name
1181     ctx.domain_name = netbios_domain
1182     ctx.realm = dnsdomain
1183     ctx.parent_dnsdomain = ctx.dnsdomain
1184     ctx.parent_partition_dn = ctx.get_parent_partition_dn()
1185     ctx.dnsdomain = dnsdomain
1186     ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
1187     ctx.naming_master = ctx.get_naming_master()
1188     if ctx.naming_master != ctx.server:
1189         print("Reconnecting to naming master %s" % ctx.naming_master)
1190         ctx.server = ctx.naming_master
1191         ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
1192                           session_info=system_session(),
1193                           credentials=ctx.creds, lp=ctx.lp)
1194
1195     ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
1196     ctx.domsid = str(security.random_sid())
1197     ctx.acct_dn = None
1198     ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
1199     ctx.trustdom_pass = samba.generate_random_password(128, 128)
1200
1201     ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
1202
1203     ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
1204     ctx.secure_channel_type = misc.SEC_CHAN_BDC
1205
1206     ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
1207                          drsuapi.DRSUAPI_DRS_INIT_SYNC |
1208                          drsuapi.DRSUAPI_DRS_PER_SYNC |
1209                          drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
1210                          drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
1211     ctx.domain_replica_flags = ctx.replica_flags
1212
1213     ctx.do_join()
1214     print "Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)