source4/scripting/python/samba/netcmd/domain.py

   1 #!/usr/bin/env python
   2 #
   3 # domain management
   4 #
   5 # Copyright Matthias Dieter Wallnoefer 2009
   6 # Copyright Andrew Kroeger 2009
   7 # Copyright Jelmer Vernooij 2009
   8 # Copyright Giampaolo Lauria 2011
   9 # Copyright Matthieu Patou <mat@matws.net> 2011
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 3 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 #
  24
  25
  26
  27 import samba.getopt as options
  28 import ldb
  29 import string
  30 import os
  31 import tempfile
  32 import logging
  33 from samba.net import Net, LIBNET_JOIN_AUTOMATIC
  34 import samba.ntacls
  35 from samba.join import join_RODC, join_DC, join_subdomain
  36 from samba.auth import system_session
  37 from samba.samdb import SamDB
  38 from samba.dcerpc import drsuapi
  39 from samba.dcerpc.samr import DOMAIN_PASSWORD_COMPLEX, DOMAIN_PASSWORD_STORE_CLEARTEXT
  40 from samba.netcmd import (
  41     Command,
  42     CommandError,
  43     SuperCommand,
  44     Option
  45     )
  46 from samba.netcmd.common import netcmd_get_domain_infos_via_cldap
  47 from samba.samba3 import Samba3
  48 from samba.samba3 import param as s3param
  49 from samba.upgrade import upgrade_from_samba3
  50 from samba.drs_utils import (
  51                             sendDsReplicaSync, drsuapi_connect, drsException,
  52                             sendRemoveDsServer)
  53
  54
  55 from samba.dsdb import (
  56     DS_DOMAIN_FUNCTION_2000,
  57     DS_DOMAIN_FUNCTION_2003,
  58     DS_DOMAIN_FUNCTION_2003_MIXED,
  59     DS_DOMAIN_FUNCTION_2008,
  60     DS_DOMAIN_FUNCTION_2008_R2,
  61     DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL,
  62     DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL,
  63     UF_WORKSTATION_TRUST_ACCOUNT,
  64     UF_SERVER_TRUST_ACCOUNT,
  65     UF_TRUSTED_FOR_DELEGATION
  66     )
  67
  68 def get_testparm_var(testparm, smbconf, varname):
  69     cmd = "%s -s -l --parameter-name='%s' %s 2>/dev/null" % (testparm, varname, smbconf)
  70     output = os.popen(cmd, 'r').readline()
  71     return output.strip()
  72
  73
  74 class cmd_domain_export_keytab(Command):
  75     """Dumps kerberos keys of the domain into a keytab"""
  76
  77     synopsis = "%prog <keytab> [options]"
  78
  79     takes_optiongroups = {
  80         "sambaopts": options.SambaOptions,
  81         "credopts": options.CredentialsOptions,
  82         "versionopts": options.VersionOptions,
  83         }
  84
  85     takes_options = [
  86         Option("--principal", help="extract only this principal", type=str),
  87         ]
  88
  89     takes_args = ["keytab"]
  90
  91     def run(self, keytab, credopts=None, sambaopts=None, versionopts=None, principal=None):
  92         lp = sambaopts.get_loadparm()
  93         net = Net(None, lp)
  94         net.export_keytab(keytab=keytab, principal=principal)
  95
  96
  97 class cmd_domain_info(Command):
  98     """Print basic info about a domain and the DC passed as parameter"""
  99
 100     synopsis = "%prog <ip_address> [options]"
 101
 102     takes_options = [
 103         ]
 104
 105     takes_optiongroups = {
 106         "sambaopts": options.SambaOptions,
 107         "credopts": options.CredentialsOptions,
 108         "versionopts": options.VersionOptions,
 109         }
 110
 111     takes_args = ["address"]
 112
 113     def run(self, address, credopts=None, sambaopts=None, versionopts=None):
 114         lp = sambaopts.get_loadparm()
 115         try:
 116             res = netcmd_get_domain_infos_via_cldap(lp, None, address)
 117             print "Forest           : %s" % res.forest
 118             print "Domain           : %s" % res.dns_domain
 119             print "Netbios domain   : %s" % res.domain_name
 120             print "DC name          : %s" % res.pdc_dns_name
 121             print "DC netbios name  : %s" % res.pdc_name
 122             print "Server site      : %s" % res.server_site
 123             print "Client site      : %s" % res.client_site
 124         except RuntimeError:
 125             raise CommandError("Invalid IP address '" + address + "'!")
 126
 127
 128 class cmd_domain_join(Command):
 129     """Joins domain as either member or backup domain controller"""
 130
 131     synopsis = "%prog <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
 132
 133     takes_optiongroups = {
 134         "sambaopts": options.SambaOptions,
 135         "versionopts": options.VersionOptions,
 136         "credopts": options.CredentialsOptions,
 137     }
 138
 139     takes_options = [
 140         Option("--server", help="DC to join", type=str),
 141         Option("--site", help="site to join", type=str),
 142         Option("--targetdir", help="where to store provision", type=str),
 143         Option("--parent-domain", help="parent domain to create subdomain under", type=str),
 144         Option("--domain-critical-only",
 145                help="only replicate critical domain objects",
 146                action="store_true"),
 147         Option("--machinepass", type=str, metavar="PASSWORD",
 148                help="choose machine password (otherwise random)")
 149         ]
 150
 151     takes_args = ["domain", "role?"]
 152
 153     def run(self, domain, role=None, sambaopts=None, credopts=None,
 154             versionopts=None, server=None, site=None, targetdir=None,
 155             domain_critical_only=False, parent_domain=None, machinepass=None):
 156         lp = sambaopts.get_loadparm()
 157         creds = credopts.get_credentials(lp)
 158         net = Net(creds, lp, server=credopts.ipaddress)
 159
 160         if site is None:
 161             site = "Default-First-Site-Name"
 162
 163         netbios_name = lp.get("netbios name")
 164
 165         if not role is None:
 166             role = role.upper()
 167
 168         if role is None or role == "MEMBER":
 169             (join_password, sid, domain_name) = net.join_member(domain,
 170                                                                 netbios_name,
 171                                                                 LIBNET_JOIN_AUTOMATIC,
 172                                                                 machinepass=machinepass)
 173
 174             self.outf.write("Joined domain %s (%s)\n" % (domain_name, sid))
 175             return
 176         elif role == "DC":
 177             join_DC(server=server, creds=creds, lp=lp, domain=domain,
 178                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 179                     domain_critical_only=domain_critical_only,
 180                     machinepass=machinepass)
 181             return
 182         elif role == "RODC":
 183             join_RODC(server=server, creds=creds, lp=lp, domain=domain,
 184                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 185                       domain_critical_only=domain_critical_only,
 186                       machinepass=machinepass)
 187             return
 188         elif role == "SUBDOMAIN":
 189             netbios_domain = lp.get("workgroup")
 190             if parent_domain is None:
 191                 parent_domain = ".".join(domain.split(".")[1:])
 192             join_subdomain(server=server, creds=creds, lp=lp, dnsdomain=domain, parent_domain=parent_domain,
 193                            site=site, netbios_name=netbios_name, netbios_domain=netbios_domain, targetdir=targetdir,
 194                            machinepass=machinepass)
 195             return
 196         else:
 197             raise CommandError("Invalid role '%s' (possible values: MEMBER, DC, RODC, SUBDOMAIN)" % role)
 198
 199
 200
 201 class cmd_domain_demote(Command):
 202     """Demote ourselves from the role of Domain Controller"""
 203
 204     synopsis = "%prog [options]"
 205
 206     takes_options = [
 207         Option("--server", help="DC to force replication before demote", type=str),
 208         Option("--targetdir", help="where provision is stored", type=str),
 209         ]
 210
 211     takes_optiongroups = {
 212         "sambaopts": options.SambaOptions,
 213         "credopts": options.CredentialsOptions,
 214         "versionopts": options.VersionOptions,
 215         }
 216
 217     def run(self, sambaopts=None, credopts=None,
 218             versionopts=None, server=None, targetdir=None):
 219         lp = sambaopts.get_loadparm()
 220         creds = credopts.get_credentials(lp)
 221         net = Net(creds, lp, server=credopts.ipaddress)
 222
 223         netbios_name = lp.get("netbios name")
 224         samdb = SamDB(session_info=system_session(), credentials=creds, lp=lp)
 225         if not server:
 226             res = samdb.search(expression='(&(objectClass=computer)(serverReferenceBL=*))', attrs=["dnsHostName", "name"])
 227             if (len(res) == 0):
 228                 raise CommandError("Unable to search for servers")
 229
 230             if (len(res) == 1):
 231                 raise CommandError("You are the latest server in the domain")
 232
 233             server = None
 234             for e in res:
 235                 if str(e["name"]).lower() != netbios_name.lower():
 236                     server = e["dnsHostName"]
 237                     break
 238
 239         ntds_guid = samdb.get_ntds_GUID()
 240         msg = samdb.search(base=str(samdb.get_config_basedn()), scope=ldb.SCOPE_SUBTREE,
 241                                 expression="(objectGUID=%s)" % ntds_guid,
 242                                 attrs=['options'])
 243         if len(msg) == 0 or "options" not in msg[0]:
 244             raise CommandError("Failed to find options on %s" % ntds_guid)
 245
 246         ntds_dn = msg[0].dn
 247         dsa_options = int(str(msg[0]['options']))
 248
 249         res = samdb.search(expression="(fSMORoleOwner=%s)" % str(ntds_dn),
 250                             controls=["search_options:1:2"])
 251
 252         if len(res) != 0:
 253             raise CommandError("Current DC is still the owner of %d role(s), use the role command to transfer roles to another DC")
 254
 255         print "Using %s as partner server for the demotion" % server
 256         (drsuapiBind, drsuapi_handle, supportedExtensions) = drsuapi_connect(server, lp, creds)
 257
 258         print "Desactivating inbound replication"
 259
 260         nmsg = ldb.Message()
 261         nmsg.dn = msg[0].dn
 262
 263         dsa_options |= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 264         nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 265         samdb.modify(nmsg)
 266
 267         if not (dsa_options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) and not samdb.am_rodc():
 268
 269             print "Asking partner server %s to synchronize from us" % server
 270             for part in (samdb.get_schema_basedn(),
 271                             samdb.get_config_basedn(),
 272                             samdb.get_root_basedn()):
 273                 try:
 274                     sendDsReplicaSync(drsuapiBind, drsuapi_handle, ntds_guid, str(part), drsuapi.DRSUAPI_DRS_WRIT_REP)
 275                 except drsException, e:
 276                     print "Error while demoting, re-enabling inbound replication"
 277                     dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 278                     nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 279                     samdb.modify(nmsg)
 280                     raise CommandError("Error while sending a DsReplicaSync for partion %s" % str(part), e)
 281         try:
 282             remote_samdb = SamDB(url="ldap://%s" % server,
 283                                 session_info=system_session(),
 284                                 credentials=creds, lp=lp)
 285
 286             print "Changing userControl and container"
 287             res = remote_samdb.search(base=str(remote_samdb.get_root_basedn()),
 288                                 expression="(&(objectClass=user)(sAMAccountName=%s$))" %
 289                                             netbios_name.upper(),
 290                                 attrs=["userAccountControl"])
 291             dc_dn = res[0].dn
 292             uac = int(str(res[0]["userAccountControl"]))
 293
 294         except Exception, e:
 295                 print "Error while demoting, re-enabling inbound replication"
 296                 dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 297                 nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 298                 samdb.modify(nmsg)
 299                 raise CommandError("Error while changing account control", e)
 300
 301         if (len(res) != 1):
 302             print "Error while demoting, re-enabling inbound replication"
 303             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 304             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 305             samdb.modify(nmsg)
 306             raise CommandError("Unable to find object with samaccountName = %s$"
 307                                " in the remote dc" % netbios_name.upper())
 308
 309         olduac = uac
 310
 311         uac ^= (UF_SERVER_TRUST_ACCOUNT|UF_TRUSTED_FOR_DELEGATION)
 312         uac |= UF_WORKSTATION_TRUST_ACCOUNT
 313
 314         msg = ldb.Message()
 315         msg.dn = dc_dn
 316
 317         msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 318                                                         ldb.FLAG_MOD_REPLACE,
 319                                                         "userAccountControl")
 320         try:
 321             remote_samdb.modify(msg)
 322         except Exception, e:
 323             print "Error while demoting, re-enabling inbound replication"
 324             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 325             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 326             samdb.modify(nmsg)
 327
 328             raise CommandError("Error while changing account control", e)
 329
 330         parent = msg.dn.parent()
 331         rdn = str(res[0].dn)
 332         rdn = string.replace(rdn, ",%s" % str(parent), "")
 333         # Let's move to the Computer container
 334         i = 0
 335         newrdn = rdn
 336
 337         computer_dn = ldb.Dn(remote_samdb, "CN=Computers,%s" % str(remote_samdb.get_root_basedn()))
 338         res = remote_samdb.search(base=computer_dn, expression=rdn, scope=ldb.SCOPE_ONELEVEL)
 339
 340         if (len(res) != 0):
 341             res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 342                                         scope=ldb.SCOPE_ONELEVEL)
 343             while(len(res) != 0 and i < 100):
 344                 i = i + 1
 345                 res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 346                                             scope=ldb.SCOPE_ONELEVEL)
 347
 348             if i == 100:
 349                 print "Error while demoting, re-enabling inbound replication"
 350                 dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 351                 nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 352                 samdb.modify(nmsg)
 353
 354                 msg = ldb.Message()
 355                 msg.dn = dc_dn
 356
 357                 msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 358                                                         ldb.FLAG_MOD_REPLACE,
 359                                                         "userAccountControl")
 360
 361                 remote_samdb.modify(msg)
 362
 363                 raise CommandError("Unable to find a slot for renaming %s,"
 364                                     " all names from %s-1 to %s-%d seemed used" %
 365                                     (str(dc_dn), rdn, rdn, i - 9))
 366
 367             newrdn = "%s-%d" % (rdn, i)
 368
 369         try:
 370             newdn = ldb.Dn(remote_samdb, "%s,%s" % (newrdn, str(computer_dn)))
 371             remote_samdb.rename(dc_dn, newdn)
 372         except Exception, e:
 373             print "Error while demoting, re-enabling inbound replication"
 374             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 375             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 376             samdb.modify(nmsg)
 377
 378             msg = ldb.Message()
 379             msg.dn = dc_dn
 380
 381             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 382                                                     ldb.FLAG_MOD_REPLACE,
 383                                                     "userAccountControl")
 384
 385             remote_samdb.modify(msg)
 386             raise CommandError("Error while renaming %s to %s" % (str(dc_dn), str(newdn)), e)
 387
 388
 389         server_dsa_dn = samdb.get_serverName()
 390         domain = remote_samdb.get_root_basedn()
 391
 392         try:
 393             sendRemoveDsServer(drsuapiBind, drsuapi_handle, server_dsa_dn, domain)
 394         except drsException, e:
 395             print "Error while demoting, re-enabling inbound replication"
 396             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 397             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 398             samdb.modify(nmsg)
 399
 400             msg = ldb.Message()
 401             msg.dn = newdn
 402
 403             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 404                                                     ldb.FLAG_MOD_REPLACE,
 405                                                     "userAccountControl")
 406             print str(dc_dn)
 407             remote_samdb.modify(msg)
 408             remote_samdb.rename(newdn, dc_dn)
 409             raise CommandError("Error while sending a removeDsServer", e)
 410
 411         for s in ("CN=Entreprise,CN=Microsoft System Volumes,CN=System,CN=Configuration",
 412                   "CN=%s,CN=Microsoft System Volumes,CN=System,CN=Configuration" % lp.get("realm"),
 413                   "CN=Domain System Volumes (SYSVOL share),CN=File Replication Service,CN=System"):
 414             try:
 415                 remote_samdb.delete(ldb.Dn(remote_samdb,
 416                                     "%s,%s,%s" % (str(rdn), s, str(remote_samdb.get_root_basedn()))))
 417             except ldb.LdbError, l:
 418                 pass
 419
 420         for s in ("CN=Entreprise,CN=NTFRS Subscriptions",
 421                   "CN=%s, CN=NTFRS Subscriptions" % lp.get("realm"),
 422                   "CN=Domain system Volumes (SYSVOL Share), CN=NTFRS Subscriptions",
 423                   "CN=NTFRS Subscriptions"):
 424             try:
 425                 remote_samdb.delete(ldb.Dn(remote_samdb,
 426                                     "%s,%s" % (s, str(newdn))))
 427             except ldb.LdbError, l:
 428                 pass
 429
 430         self.outf.write("Demote successfull\n")
 431
 432
 433 class cmd_domain_level(Command):
 434     """Raises domain and forest function levels"""
 435
 436     synopsis = "%prog (show|raise <options>) [options]"
 437
 438     takes_optiongroups = {
 439         "sambaopts": options.SambaOptions,
 440         "credopts": options.CredentialsOptions,
 441         "versionopts": options.VersionOptions,
 442         }
 443
 444     takes_options = [
 445         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 446                metavar="URL", dest="H"),
 447         Option("--quiet", help="Be quiet", action="store_true"),
 448         Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
 449             help="The forest function level (2003 | 2008 | 2008_R2)"),
 450         Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
 451             help="The domain function level (2003 | 2008 | 2008_R2)")
 452             ]
 453
 454     takes_args = ["subcommand"]
 455
 456     def run(self, subcommand, H=None, forest_level=None, domain_level=None,
 457             quiet=False, credopts=None, sambaopts=None, versionopts=None):
 458         lp = sambaopts.get_loadparm()
 459         creds = credopts.get_credentials(lp, fallback_machine=True)
 460
 461         samdb = SamDB(url=H, session_info=system_session(),
 462             credentials=creds, lp=lp)
 463
 464         domain_dn = samdb.domain_dn()
 465
 466         res_forest = samdb.search("CN=Partitions,%s" % samdb.get_config_basedn(),
 467           scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 468         assert len(res_forest) == 1
 469
 470         res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 471           attrs=["msDS-Behavior-Version", "nTMixedDomain"])
 472         assert len(res_domain) == 1
 473
 474         res_dc_s = samdb.search("CN=Sites,%s" % samdb.get_config_basedn(),
 475           scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
 476           attrs=["msDS-Behavior-Version"])
 477         assert len(res_dc_s) >= 1
 478
 479         try:
 480             level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
 481             level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
 482             level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
 483
 484             min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
 485             for msg in res_dc_s:
 486                 if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
 487                     min_level_dc = int(msg["msDS-Behavior-Version"][0])
 488
 489             if level_forest < 0 or level_domain < 0:
 490                 raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
 491             if min_level_dc < 0:
 492                 raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
 493             if level_forest > level_domain:
 494                 raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
 495             if level_domain > min_level_dc:
 496                 raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
 497
 498         except KeyError:
 499             raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
 500
 501         if subcommand == "show":
 502             self.message("Domain and forest function level for domain '%s'" % domain_dn)
 503             if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 504                 self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 505             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 506                 self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 507             if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 508                 self.message("\nATTENTION: You run SAMBA 4 on a lowest function level of a DC lower than Windows 2003. This isn't supported! Please step-up or upgrade the concerning DC(s)!")
 509
 510             self.message("")
 511
 512             if level_forest == DS_DOMAIN_FUNCTION_2000:
 513                 outstr = "2000"
 514             elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
 515                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 516             elif level_forest == DS_DOMAIN_FUNCTION_2003:
 517                 outstr = "2003"
 518             elif level_forest == DS_DOMAIN_FUNCTION_2008:
 519                 outstr = "2008"
 520             elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
 521                 outstr = "2008 R2"
 522             else:
 523                 outstr = "higher than 2008 R2"
 524             self.message("Forest function level: (Windows) " + outstr)
 525
 526             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 527                 outstr = "2000 mixed (NT4 DC support)"
 528             elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
 529                 outstr = "2000"
 530             elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
 531                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 532             elif level_domain == DS_DOMAIN_FUNCTION_2003:
 533                 outstr = "2003"
 534             elif level_domain == DS_DOMAIN_FUNCTION_2008:
 535                 outstr = "2008"
 536             elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
 537                 outstr = "2008 R2"
 538             else:
 539                 outstr = "higher than 2008 R2"
 540             self.message("Domain function level: (Windows) " + outstr)
 541
 542             if min_level_dc == DS_DOMAIN_FUNCTION_2000:
 543                 outstr = "2000"
 544             elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
 545                 outstr = "2003"
 546             elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
 547                 outstr = "2008"
 548             elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
 549                 outstr = "2008 R2"
 550             else:
 551                 outstr = "higher than 2008 R2"
 552             self.message("Lowest function level of a DC: (Windows) " + outstr)
 553
 554         elif subcommand == "raise":
 555             msgs = []
 556
 557             if domain_level is not None:
 558                 if domain_level == "2003":
 559                     new_level_domain = DS_DOMAIN_FUNCTION_2003
 560                 elif domain_level == "2008":
 561                     new_level_domain = DS_DOMAIN_FUNCTION_2008
 562                 elif domain_level == "2008_R2":
 563                     new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
 564
 565                 if new_level_domain <= level_domain and level_domain_mixed == 0:
 566                     raise CommandError("Domain function level can't be smaller than or equal to the actual one!")
 567
 568                 if new_level_domain > min_level_dc:
 569                     raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
 570
 571                 # Deactivate mixed/interim domain support
 572                 if level_domain_mixed != 0:
 573                     # Directly on the base DN
 574                     m = ldb.Message()
 575                     m.dn = ldb.Dn(samdb, domain_dn)
 576                     m["nTMixedDomain"] = ldb.MessageElement("0",
 577                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 578                     samdb.modify(m)
 579                     # Under partitions
 580                     m = ldb.Message()
 581                     m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup") + ",CN=Partitions,%s" % ldb.get_config_basedn())
 582                     m["nTMixedDomain"] = ldb.MessageElement("0",
 583                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
 584                     try:
 585                         samdb.modify(m)
 586                     except ldb.LdbError, (enum, emsg):
 587                         if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 588                             raise
 589
 590                 # Directly on the base DN
 591                 m = ldb.Message()
 592                 m.dn = ldb.Dn(samdb, domain_dn)
 593                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 594                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 595                             "msDS-Behavior-Version")
 596                 samdb.modify(m)
 597                 # Under partitions
 598                 m = ldb.Message()
 599                 m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
 600                   + ",CN=Partitions,%s" % ldb.get_config_basedn())
 601                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 602                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
 603                           "msDS-Behavior-Version")
 604                 try:
 605                     samdb.modify(m)
 606                 except ldb.LdbError, (enum, emsg):
 607                     if enum != ldb.ERR_UNWILLING_TO_PERFORM:
 608                         raise
 609
 610                 level_domain = new_level_domain
 611                 msgs.append("Domain function level changed!")
 612
 613             if forest_level is not None:
 614                 if forest_level == "2003":
 615                     new_level_forest = DS_DOMAIN_FUNCTION_2003
 616                 elif forest_level == "2008":
 617                     new_level_forest = DS_DOMAIN_FUNCTION_2008
 618                 elif forest_level == "2008_R2":
 619                     new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
 620                 if new_level_forest <= level_forest:
 621                     raise CommandError("Forest function level can't be smaller than or equal to the actual one!")
 622                 if new_level_forest > level_domain:
 623                     raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
 624                 m = ldb.Message()
 625                 m.dn = ldb.Dn(samdb, "CN=Partitions,%s" % ldb.get_config_basedn())
 626                 m["msDS-Behavior-Version"]= ldb.MessageElement(
 627                   str(new_level_forest), ldb.FLAG_MOD_REPLACE,
 628                           "msDS-Behavior-Version")
 629                 samdb.modify(m)
 630                 msgs.append("Forest function level changed!")
 631             msgs.append("All changes applied successfully!")
 632             self.message("\n".join(msgs))
 633         else:
 634             raise CommandError("invalid argument: '%s' (choose from 'show', 'raise')" % subcommand)
 635
 636
 637 class cmd_domain_passwordsettings(Command):
 638     """Sets password settings
 639
 640     Password complexity, history length, minimum password length, the minimum
 641     and maximum password age) on a Samba4 server.
 642     """
 643
 644     synopsis = "%prog (show|set <options>) [options]"
 645
 646     takes_optiongroups = {
 647         "sambaopts": options.SambaOptions,
 648         "versionopts": options.VersionOptions,
 649         "credopts": options.CredentialsOptions,
 650         }
 651
 652     takes_options = [
 653         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 654                metavar="URL", dest="H"),
 655         Option("--quiet", help="Be quiet", action="store_true"),
 656         Option("--complexity", type="choice", choices=["on","off","default"],
 657           help="The password complexity (on | off | default). Default is 'on'"),
 658         Option("--store-plaintext", type="choice", choices=["on","off","default"],
 659           help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
 660         Option("--history-length",
 661           help="The password history length (<integer> | default).  Default is 24.", type=str),
 662         Option("--min-pwd-length",
 663           help="The minimum password length (<integer> | default).  Default is 7.", type=str),
 664         Option("--min-pwd-age",
 665           help="The minimum password age (<integer in days> | default).  Default is 1.", type=str),
 666         Option("--max-pwd-age",
 667           help="The maximum password age (<integer in days> | default).  Default is 43.", type=str),
 668           ]
 669
 670     takes_args = ["subcommand"]
 671
 672     def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
 673             quiet=False, complexity=None, store_plaintext=None, history_length=None,
 674             min_pwd_length=None, credopts=None, sambaopts=None,
 675             versionopts=None):
 676         lp = sambaopts.get_loadparm()
 677         creds = credopts.get_credentials(lp)
 678
 679         samdb = SamDB(url=H, session_info=system_session(),
 680             credentials=creds, lp=lp)
 681
 682         domain_dn = samdb.domain_dn()
 683         res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 684           attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
 685                  "minPwdAge", "maxPwdAge"])
 686         assert(len(res) == 1)
 687         try:
 688             pwd_props = int(res[0]["pwdProperties"][0])
 689             pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
 690             cur_min_pwd_len = int(res[0]["minPwdLength"][0])
 691             # ticks -> days
 692             cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 693             if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
 694                 cur_max_pwd_age = 0
 695             else:
 696                 cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
 697         except Exception, e:
 698             raise CommandError("Could not retrieve password properties!", e)
 699
 700         if subcommand == "show":
 701             self.message("Password informations for domain '%s'" % domain_dn)
 702             self.message("")
 703             if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
 704                 self.message("Password complexity: on")
 705             else:
 706                 self.message("Password complexity: off")
 707             if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
 708                 self.message("Store plaintext passwords: on")
 709             else:
 710                 self.message("Store plaintext passwords: off")
 711             self.message("Password history length: %d" % pwd_hist_len)
 712             self.message("Minimum password length: %d" % cur_min_pwd_len)
 713             self.message("Minimum password age (days): %d" % cur_min_pwd_age)
 714             self.message("Maximum password age (days): %d" % cur_max_pwd_age)
 715         elif subcommand == "set":
 716             msgs = []
 717             m = ldb.Message()
 718             m.dn = ldb.Dn(samdb, domain_dn)
 719
 720             if complexity is not None:
 721                 if complexity == "on" or complexity == "default":
 722                     pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
 723                     msgs.append("Password complexity activated!")
 724                 elif complexity == "off":
 725                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
 726                     msgs.append("Password complexity deactivated!")
 727
 728             if store_plaintext is not None:
 729                 if store_plaintext == "on" or store_plaintext == "default":
 730                     pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
 731                     msgs.append("Plaintext password storage for changed passwords activated!")
 732                 elif store_plaintext == "off":
 733                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
 734                     msgs.append("Plaintext password storage for changed passwords deactivated!")
 735
 736             if complexity is not None or store_plaintext is not None:
 737                 m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
 738                   ldb.FLAG_MOD_REPLACE, "pwdProperties")
 739
 740             if history_length is not None:
 741                 if history_length == "default":
 742                     pwd_hist_len = 24
 743                 else:
 744                     pwd_hist_len = int(history_length)
 745
 746                 if pwd_hist_len < 0 or pwd_hist_len > 24:
 747                     raise CommandError("Password history length must be in the range of 0 to 24!")
 748
 749                 m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
 750                   ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
 751                 msgs.append("Password history length changed!")
 752
 753             if min_pwd_length is not None:
 754                 if min_pwd_length == "default":
 755                     min_pwd_len = 7
 756                 else:
 757                     min_pwd_len = int(min_pwd_length)
 758
 759                 if min_pwd_len < 0 or min_pwd_len > 14:
 760                     raise CommandError("Minimum password length must be in the range of 0 to 14!")
 761
 762                 m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
 763                   ldb.FLAG_MOD_REPLACE, "minPwdLength")
 764                 msgs.append("Minimum password length changed!")
 765
 766             if min_pwd_age is not None:
 767                 if min_pwd_age == "default":
 768                     min_pwd_age = 1
 769                 else:
 770                     min_pwd_age = int(min_pwd_age)
 771
 772                 if min_pwd_age < 0 or min_pwd_age > 998:
 773                     raise CommandError("Minimum password age must be in the range of 0 to 998!")
 774
 775                 # days -> ticks
 776                 min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
 777
 778                 m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
 779                   ldb.FLAG_MOD_REPLACE, "minPwdAge")
 780                 msgs.append("Minimum password age changed!")
 781
 782             if max_pwd_age is not None:
 783                 if max_pwd_age == "default":
 784                     max_pwd_age = 43
 785                 else:
 786                     max_pwd_age = int(max_pwd_age)
 787
 788                 if max_pwd_age < 0 or max_pwd_age > 999:
 789                     raise CommandError("Maximum password age must be in the range of 0 to 999!")
 790
 791                 # days -> ticks
 792                 if max_pwd_age == 0:
 793                     max_pwd_age_ticks = -0x8000000000000000
 794                 else:
 795                     max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
 796
 797                 m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
 798                   ldb.FLAG_MOD_REPLACE, "maxPwdAge")
 799                 msgs.append("Maximum password age changed!")
 800
 801             if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
 802                 raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
 803
 804             if len(m) == 0:
 805                 raise CommandError("You must specify at least one option to set. Try --help")
 806             samdb.modify(m)
 807             msgs.append("All changes applied successfully!")
 808             self.message("\n".join(msgs))
 809         else:
 810             raise CommandError("Wrong argument '%s'!" % subcommand)
 811
 812
 813 class cmd_domain_samba3upgrade(Command):
 814     """Upgrade from Samba3 database to Samba4 AD database.
 815
 816     Specify either a directory with all samba3 databases and state files (with --dbdir) or
 817     samba3 testparm utility (with --testparm).
 818     """
 819
 820     synopsis = "%prog [options] <samba3_smb_conf>"
 821
 822     takes_optiongroups = {
 823         "sambaopts": options.SambaOptions,
 824         "versionopts": options.VersionOptions
 825     }
 826
 827     takes_options = [
 828         Option("--dbdir", type="string", metavar="DIR",
 829                   help="Path to samba3 database directory"),
 830         Option("--testparm", type="string", metavar="PATH",
 831                   help="Path to samba3 testparm utility from the previous installation.  This allows the default paths of the previous installation to be followed"),
 832         Option("--targetdir", type="string", metavar="DIR",
 833                   help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
 834         Option("--quiet", help="Be quiet", action="store_true"),
 835         Option("--verbose", help="Be verbose", action="store_true"),
 836         Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
 837                    help="Define if we should use the native fs capabilities or a tdb file for storing attributes likes ntacl, auto tries to make an inteligent guess based on the user rights and system capabilities", default="auto"),
 838     ]
 839
 840     takes_args = ["smbconf"]
 841
 842     def run(self, smbconf=None, targetdir=None, dbdir=None, testparm=None,
 843             quiet=False, verbose=False, use_xattrs=None, sambaopts=None, versionopts=None):
 844
 845         if not os.path.exists(smbconf):
 846             raise CommandError("File %s does not exist" % smbconf)
 847
 848         if testparm and not os.path.exists(testparm):
 849             raise CommandError("Testparm utility %s does not exist" % testparm)
 850
 851         if dbdir and not os.path.exists(dbdir):
 852             raise CommandError("Directory %s does not exist" % dbdir)
 853
 854         if not dbdir and not testparm:
 855             raise CommandError("Please specify either dbdir or testparm")
 856
 857         logger = self.get_logger()
 858         if verbose:
 859             logger.setLevel(logging.DEBUG)
 860         elif quiet:
 861             logger.setLevel(logging.WARNING)
 862         else:
 863             logger.setLevel(logging.INFO)
 864
 865         if dbdir and testparm:
 866             logger.warning("both dbdir and testparm specified, ignoring dbdir.")
 867             dbdir = None
 868
 869         lp = sambaopts.get_loadparm()
 870
 871         s3conf = s3param.get_context()
 872
 873         if sambaopts.realm:
 874             s3conf.set("realm", sambaopts.realm)
 875
 876         if targetdir is not None:
 877             if not os.path.isdir(targetdir):
 878                 os.mkdir(targetdir)
 879
 880         eadb = True
 881         if use_xattrs == "yes":
 882             eadb = False
 883         elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
 884             if targetdir:
 885                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(targetdir))
 886             else:
 887                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(os.path.dirname(lp.get("private dir"))))
 888             try:
 889                 try:
 890                     samba.ntacls.setntacl(lp, tmpfile.name,
 891                                 "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
 892                     eadb = False
 893                 except Exception:
 894                     # FIXME: Don't catch all exceptions here
 895                     logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
 896                                 "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
 897             finally:
 898                 tmpfile.close()
 899
 900         # Set correct default values from dbdir or testparm
 901         paths = {}
 902         if dbdir:
 903             paths["state directory"] = dbdir
 904             paths["private dir"] = dbdir
 905             paths["lock directory"] = dbdir
 906         else:
 907             paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
 908             paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
 909             paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
 910             # "testparm" from Samba 3 < 3.4.x is not aware of the parameter
 911             # "state directory", instead make use of "lock directory"
 912             if len(paths["state directory"]) == 0:
 913                 paths["state directory"] = paths["lock directory"]
 914
 915         for p in paths:
 916             s3conf.set(p, paths[p])
 917
 918         # load smb.conf parameters
 919         logger.info("Reading smb.conf")
 920         s3conf.load(smbconf)
 921         samba3 = Samba3(smbconf, s3conf)
 922
 923         logger.info("Provisioning")
 924         upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
 925                             useeadb=eadb)
 926
 927 class cmd_domain(SuperCommand):
 928     """Domain management"""
 929
 930     subcommands = {}
 931     subcommands["demote"] = cmd_domain_demote()
 932     subcommands["exportkeytab"] = cmd_domain_export_keytab()
 933     subcommands["info"] = cmd_domain_info()
 934     subcommands["join"] = cmd_domain_join()
 935     subcommands["level"] = cmd_domain_level()
 936     subcommands["passwordsettings"] = cmd_domain_passwordsettings()
 937     subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()