python/samba/netcmd/domain.py

   1 # domain management
   2 #
   3 # Copyright Matthias Dieter Wallnoefer 2009
   4 # Copyright Andrew Kroeger 2009
   5 # Copyright Jelmer Vernooij 2007-2012
   6 # Copyright Giampaolo Lauria 2011
   7 # Copyright Matthieu Patou <mat@matws.net> 2011
   8 # Copyright Andrew Bartlett 2008
   9 # Copyright Stefan Metzmacher 2012
  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 import samba.getopt as options
  26 import ldb
  27 import string
  28 import os
  29 import sys
  30 import tempfile
  31 import logging
  32 from samba.net import Net, LIBNET_JOIN_AUTOMATIC
  33 import samba.ntacls
  34 from samba.join import join_RODC, join_DC, join_subdomain
  35 from samba.auth import system_session
  36 from samba.samdb import SamDB
  37 from samba.dcerpc import drsuapi
  38 from samba.dcerpc.samr import DOMAIN_PASSWORD_COMPLEX, DOMAIN_PASSWORD_STORE_CLEARTEXT
  39 from samba.netcmd import (
  40     Command,
  41     CommandError,
  42     SuperCommand,
  43     Option
  44     )
  45 from samba.netcmd.common import netcmd_get_domain_infos_via_cldap
  46 from samba.samba3 import Samba3
  47 from samba.samba3 import param as s3param
  48 from samba.upgrade import upgrade_from_samba3
  49 from samba.drs_utils import (
  50                             sendDsReplicaSync, drsuapi_connect, drsException,
  51                             sendRemoveDsServer)
  52
  53
  54 from samba.dsdb import (
  55     DS_DOMAIN_FUNCTION_2000,
  56     DS_DOMAIN_FUNCTION_2003,
  57     DS_DOMAIN_FUNCTION_2003_MIXED,
  58     DS_DOMAIN_FUNCTION_2008,
  59     DS_DOMAIN_FUNCTION_2008_R2,
  60     DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL,
  61     DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL,
  62     UF_WORKSTATION_TRUST_ACCOUNT,
  63     UF_SERVER_TRUST_ACCOUNT,
  64     UF_TRUSTED_FOR_DELEGATION
  65     )
  66
  67 from samba.credentials import DONT_USE_KERBEROS
  68 from samba.provision import (
  69     provision,
  70     ProvisioningError
  71     )
  72
  73 from samba.provision.common import (
  74     FILL_FULL,
  75     FILL_NT4SYNC,
  76     FILL_DRS
  77 )
  78
  79 def get_testparm_var(testparm, smbconf, varname):
  80     cmd = "%s -s -l --parameter-name='%s' %s 2>/dev/null" % (testparm, varname, smbconf)
  81     output = os.popen(cmd, 'r').readline()
  82     return output.strip()
  83
  84 try:
  85    import samba.dckeytab
  86 except ImportError:
  87    cmd_domain_export_keytab = None
  88 else:
  89    class cmd_domain_export_keytab(Command):
  90        """Dump Kerberos keys of the domain into a keytab."""
  91
  92        synopsis = "%prog <keytab> [options]"
  93
  94        takes_optiongroups = {
  95            "sambaopts": options.SambaOptions,
  96            "credopts": options.CredentialsOptions,
  97            "versionopts": options.VersionOptions,
  98            }
  99
 100        takes_options = [
 101            Option("--principal", help="extract only this principal", type=str),
 102            ]
 103
 104        takes_args = ["keytab"]
 105
 106        def run(self, keytab, credopts=None, sambaopts=None, versionopts=None, principal=None):
 107            lp = sambaopts.get_loadparm()
 108            net = Net(None, lp)
 109            net.export_keytab(keytab=keytab, principal=principal)
 110
 111
 112 class cmd_domain_info(Command):
 113     """Print basic info about a domain and the DC passed as parameter."""
 114
 115     synopsis = "%prog <ip_address> [options]"
 116
 117     takes_options = [
 118         ]
 119
 120     takes_optiongroups = {
 121         "sambaopts": options.SambaOptions,
 122         "credopts": options.CredentialsOptions,
 123         "versionopts": options.VersionOptions,
 124         }
 125
 126     takes_args = ["address"]
 127
 128     def run(self, address, credopts=None, sambaopts=None, versionopts=None):
 129         lp = sambaopts.get_loadparm()
 130         try:
 131             res = netcmd_get_domain_infos_via_cldap(lp, None, address)
 132         except RuntimeError:
 133             raise CommandError("Invalid IP address '" + address + "'!")
 134         self.outf.write("Forest           : %s\n" % res.forest)
 135         self.outf.write("Domain           : %s\n" % res.dns_domain)
 136         self.outf.write("Netbios domain   : %s\n" % res.domain_name)
 137         self.outf.write("DC name          : %s\n" % res.pdc_dns_name)
 138         self.outf.write("DC netbios name  : %s\n" % res.pdc_name)
 139         self.outf.write("Server site      : %s\n" % res.server_site)
 140         self.outf.write("Client site      : %s\n" % res.client_site)
 141
 142
 143 class cmd_domain_provision(Command):
 144     """Provision a domain."""
 145
 146     synopsis = "%prog [options]"
 147
 148     takes_optiongroups = {
 149         "sambaopts": options.SambaOptions,
 150         "versionopts": options.VersionOptions,
 151     }
 152
 153     takes_options = [
 154          Option("--interactive", help="Ask for names", action="store_true"),
 155          Option("--domain", type="string", metavar="DOMAIN",
 156                 help="set domain"),
 157          Option("--domain-guid", type="string", metavar="GUID",
 158                 help="set domainguid (otherwise random)"),
 159          Option("--domain-sid", type="string", metavar="SID",
 160                 help="set domainsid (otherwise random)"),
 161          Option("--ntds-guid", type="string", metavar="GUID",
 162                 help="set NTDS object GUID (otherwise random)"),
 163          Option("--invocationid", type="string", metavar="GUID",
 164                 help="set invocationid (otherwise random)"),
 165          Option("--host-name", type="string", metavar="HOSTNAME",
 166                 help="set hostname"),
 167          Option("--host-ip", type="string", metavar="IPADDRESS",
 168                 help="set IPv4 ipaddress"),
 169          Option("--host-ip6", type="string", metavar="IP6ADDRESS",
 170                 help="set IPv6 ipaddress"),
 171          Option("--site", type="string", metavar="SITENAME",
 172                 help="set site name"),
 173          Option("--adminpass", type="string", metavar="PASSWORD",
 174                 help="choose admin password (otherwise random)"),
 175          Option("--krbtgtpass", type="string", metavar="PASSWORD",
 176                 help="choose krbtgt password (otherwise random)"),
 177          Option("--machinepass", type="string", metavar="PASSWORD",
 178                 help="choose machine password (otherwise random)"),
 179          Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
 180                 choices=["SAMBA_INTERNAL", "BIND9_FLATFILE", "BIND9_DLZ", "NONE"],
 181                 help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
 182                      "BIND9_FLATFILE uses bind9 text database to store zone information, "
 183                      "BIND9_DLZ uses samba4 AD to store zone information, "
 184                      "NONE skips the DNS setup entirely (not recommended)",
 185                 default="SAMBA_INTERNAL"),
 186          Option("--dnspass", type="string", metavar="PASSWORD",
 187                 help="choose dns password (otherwise random)"),
 188          Option("--ldapadminpass", type="string", metavar="PASSWORD",
 189                 help="choose password to set between Samba and it's LDAP backend (otherwise random)"),
 190          Option("--root", type="string", metavar="USERNAME",
 191                 help="choose 'root' unix username"),
 192          Option("--nobody", type="string", metavar="USERNAME",
 193                 help="choose 'nobody' user"),
 194          Option("--users", type="string", metavar="GROUPNAME",
 195                 help="choose 'users' group"),
 196          Option("--quiet", help="Be quiet", action="store_true"),
 197          Option("--blank", action="store_true",
 198                 help="do not add users or groups, just the structure"),
 199          Option("--ldap-backend-type", type="choice", metavar="LDAP-BACKEND-TYPE",
 200                 help="Test initialisation support for unsupported LDAP backend type (fedora-ds or openldap) DO NOT USE",
 201                 choices=["fedora-ds", "openldap"]),
 202          Option("--server-role", type="choice", metavar="ROLE",
 203                 choices=["domain controller", "dc", "member server", "member", "standalone"],
 204                 help="The server role (domain controller | dc | member server | member | standalone). Default is dc.",
 205                 default="domain controller"),
 206          Option("--function-level", type="choice", metavar="FOR-FUN-LEVEL",
 207                 choices=["2000", "2003", "2008", "2008_R2"],
 208                 help="The domain and forest function level (2000 | 2003 | 2008 | 2008_R2 - always native). Default is (Windows) 2003 Native.",
 209                 default="2003"),
 210          Option("--next-rid", type="int", metavar="NEXTRID", default=1000,
 211                 help="The initial nextRid value (only needed for upgrades).  Default is 1000."),
 212          Option("--partitions-only",
 213                 help="Configure Samba's partitions, but do not modify them (ie, join a BDC)", action="store_true"),
 214          Option("--targetdir", type="string", metavar="DIR",
 215                 help="Set target directory"),
 216          Option("--ol-mmr-urls", type="string", metavar="LDAPSERVER",
 217                 help="List of LDAP-URLS [ ldap://<FQHN>:<PORT>/  (where <PORT> has to be different than 389!) ] separated with comma (\",\") for use with OpenLDAP-MMR (Multi-Master-Replication), e.g.: \"ldap://s4dc1:9000,ldap://s4dc2:9000\""),
 218          Option("--use-xattrs", type="choice", choices=["yes", "no", "auto"], 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"),
 219          Option("--use-ntvfs", action="store_true", help="Use NTVFS for the fileserver (default = no)"),
 220          Option("--use-rfc2307", action="store_true", help="Use AD to store posix attributes (default = no)"),
 221         ]
 222
 223     openldap_options = [
 224         Option("--ldap-dryrun-mode", help="Configure LDAP backend, but do not run any binaries and exit early.  Used only for the test environment.  DO NOT USE",
 225                action="store_true"),
 226         Option("--slapd-path", type="string", metavar="SLAPD-PATH",
 227                help="Path to slapd for LDAP backend [e.g.:'/usr/local/libexec/slapd']. Required for Setup with LDAP-Backend. OpenLDAP Version >= 2.4.17 should be used."),
 228         Option("--ldap-backend-extra-port", type="int", metavar="LDAP-BACKEND-EXTRA-PORT", help="Additional TCP port for LDAP backend server (to use for replication)"),
 229         Option("--ldap-backend-forced-uri", type="string", metavar="LDAP-BACKEND-FORCED-URI",
 230                help="Force the LDAP backend connection to be to a particular URI.  Use this ONLY for 'existing' backends, or when debugging the interaction with the LDAP backend and you need to intercept the LDA"),
 231         Option("--ldap-backend-nosync", help="Configure LDAP backend not to call fsync() (for performance in test environments)", action="store_true"),
 232         ]
 233
 234     if os.getenv('TEST_LDAP', "no") == "yes":
 235         takes_options.extend(openldap_options)
 236
 237     takes_args = []
 238
 239     def run(self, sambaopts=None, versionopts=None,
 240             interactive=None,
 241             domain=None,
 242             domain_guid=None,
 243             domain_sid=None,
 244             ntds_guid=None,
 245             invocationid=None,
 246             host_name=None,
 247             host_ip=None,
 248             host_ip6=None,
 249             adminpass=None,
 250             site=None,
 251             krbtgtpass=None,
 252             machinepass=None,
 253             dns_backend=None,
 254             dns_forwarder=None,
 255             dnspass=None,
 256             ldapadminpass=None,
 257             root=None,
 258             nobody=None,
 259             users=None,
 260             quiet=None,
 261             blank=None,
 262             ldap_backend_type=None,
 263             server_role=None,
 264             function_level=None,
 265             next_rid=None,
 266             partitions_only=None,
 267             targetdir=None,
 268             ol_mmr_urls=None,
 269             use_xattrs=None,
 270             slapd_path=None,
 271             use_ntvfs=None,
 272             use_rfc2307=None,
 273             ldap_backend_nosync=None,
 274             ldap_backend_extra_port=None,
 275             ldap_backend_forced_uri=None,
 276             ldap_dryrun_mode=None):
 277
 278         self.logger = self.get_logger("provision")
 279         if quiet:
 280             self.logger.setLevel(logging.WARNING)
 281         else:
 282             self.logger.setLevel(logging.INFO)
 283
 284         lp = sambaopts.get_loadparm()
 285         smbconf = lp.configfile
 286
 287         if dns_forwarder is not None:
 288             suggested_forwarder = dns_forwarder
 289         else:
 290             suggested_forwarder = self._get_nameserver_ip()
 291             if suggested_forwarder is None:
 292                 suggested_forwarder = "none"
 293
 294         if len(self.raw_argv) == 1:
 295             interactive = True
 296
 297         if interactive:
 298             from getpass import getpass
 299             import socket
 300
 301             def ask(prompt, default=None):
 302                 if default is not None:
 303                     print "%s [%s]: " % (prompt, default),
 304                 else:
 305                     print "%s: " % (prompt,),
 306                 return sys.stdin.readline().rstrip("\n") or default
 307
 308             try:
 309                 default = socket.getfqdn().split(".", 1)[1].upper()
 310             except IndexError:
 311                 default = None
 312             realm = ask("Realm", default)
 313             if realm in (None, ""):
 314                 raise CommandError("No realm set!")
 315
 316             try:
 317                 default = realm.split(".")[0]
 318             except IndexError:
 319                 default = None
 320             domain = ask("Domain", default)
 321             if domain is None:
 322                 raise CommandError("No domain set!")
 323
 324             server_role = ask("Server Role (dc, member, standalone)", "dc")
 325
 326             dns_backend = ask("DNS backend (SAMBA_INTERNAL, BIND9_FLATFILE, BIND9_DLZ, NONE)", "SAMBA_INTERNAL")
 327             if dns_backend in (None, ''):
 328                 raise CommandError("No DNS backend set!")
 329
 330             if dns_backend == "SAMBA_INTERNAL":
 331                 dns_forwarder = ask("DNS forwarder IP address (write 'none' to disable forwarding)", suggested_forwarder)
 332                 if dns_forwarder.lower() in (None, 'none'):
 333                     suggested_forwarder = None
 334                     dns_forwarder = None
 335
 336             while True:
 337                 adminpassplain = getpass("Administrator password: ")
 338                 if not adminpassplain:
 339                     self.errf.write("Invalid administrator password.\n")
 340                 else:
 341                     adminpassverify = getpass("Retype password: ")
 342                     if not adminpassplain == adminpassverify:
 343                         self.errf.write("Sorry, passwords do not match.\n")
 344                     else:
 345                         adminpass = adminpassplain
 346                         break
 347
 348         else:
 349             realm = sambaopts._lp.get('realm')
 350             if realm is None:
 351                 raise CommandError("No realm set!")
 352             if domain is None:
 353                 raise CommandError("No domain set!")
 354
 355         if not adminpass:
 356             self.logger.info("Administrator password will be set randomly!")
 357
 358         if function_level == "2000":
 359             dom_for_fun_level = DS_DOMAIN_FUNCTION_2000
 360         elif function_level == "2003":
 361             dom_for_fun_level = DS_DOMAIN_FUNCTION_2003
 362         elif function_level == "2008":
 363             dom_for_fun_level = DS_DOMAIN_FUNCTION_2008
 364         elif function_level == "2008_R2":
 365             dom_for_fun_level = DS_DOMAIN_FUNCTION_2008_R2
 366
 367         if dns_backend == "SAMBA_INTERNAL" and dns_forwarder is None:
 368             dns_forwarder = suggested_forwarder
 369
 370         samdb_fill = FILL_FULL
 371         if blank:
 372             samdb_fill = FILL_NT4SYNC
 373         elif partitions_only:
 374             samdb_fill = FILL_DRS
 375
 376         if targetdir is not None:
 377             if not os.path.isdir(targetdir):
 378                 os.mkdir(targetdir)
 379
 380         eadb = True
 381
 382         if use_xattrs == "yes":
 383             eadb = False
 384         elif use_xattrs == "auto" and not lp.get("posix:eadb"):
 385             if targetdir:
 386                 file = tempfile.NamedTemporaryFile(dir=os.path.abspath(targetdir))
 387             else:
 388                 file = tempfile.NamedTemporaryFile(dir=os.path.abspath(os.path.dirname(lp.get("private dir"))))
 389             try:
 390                 try:
 391                     samba.ntacls.setntacl(lp, file.name,
 392                                           "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
 393                     eadb = False
 394                 except Exception:
 395                     self.logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. ")
 396             finally:
 397                 file.close()
 398
 399         if eadb:
 400             self.logger.info("not using extended attributes to store ACLs and other metadata. If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
 401         if ldap_backend_type == "existing":
 402             if dap_backend_forced_uri is not None:
 403                 logger.warn("You have specified to use an existing LDAP server as the backend, please make sure an LDAP server is running at %s" % ldap_backend_forced_uri)
 404             else:
 405                 logger.info("You have specified to use an existing LDAP server as the backend, please make sure an LDAP server is running at the default location")
 406         else:
 407             if ldap_backend_forced_uri is not None:
 408                 logger.warn("You have specified to use an fixed URI %s for connecting to your LDAP server backend.  This is NOT RECOMMENDED, as our default communiation over ldapi:// is more secure and much less")
 409
 410         session = system_session()
 411         try:
 412             result = provision(self.logger,
 413                   session, smbconf=smbconf, targetdir=targetdir,
 414                   samdb_fill=samdb_fill, realm=realm, domain=domain,
 415                   domainguid=domain_guid, domainsid=domain_sid,
 416                   hostname=host_name,
 417                   hostip=host_ip, hostip6=host_ip6,
 418                   sitename=site, ntdsguid=ntds_guid,
 419                   invocationid=invocationid, adminpass=adminpass,
 420                   krbtgtpass=krbtgtpass, machinepass=machinepass,
 421                   dns_backend=dns_backend, dns_forwarder=dns_forwarder,
 422                   dnspass=dnspass, root=root, nobody=nobody,
 423                   users=users,
 424                   serverrole=server_role, dom_for_fun_level=dom_for_fun_level,
 425                   backend_type=ldap_backend_type,
 426                   ldapadminpass=ldapadminpass, ol_mmr_urls=ol_mmr_urls, slapd_path=slapd_path,
 427                   useeadb=eadb, next_rid=next_rid, lp=lp, use_ntvfs=use_ntvfs,
 428                   use_rfc2307=use_rfc2307, skip_sysvolacl=False,
 429                   ldap_backend_extra_port=ldap_backend_extra_port,
 430                   ldap_backend_forced_uri=ldap_backend_forced_uri,
 431                   nosync=ldap_backend_nosync, ldap_dryrun_mode=ldap_dryrun_mode)
 432
 433         except ProvisioningError, e:
 434             raise CommandError("Provision failed", e)
 435
 436         result.report_logger(self.logger)
 437
 438     def _get_nameserver_ip(self):
 439         """Grab the nameserver IP address from /etc/resolv.conf."""
 440         from os import path
 441         RESOLV_CONF="/etc/resolv.conf"
 442
 443         if not path.isfile(RESOLV_CONF):
 444             self.logger.warning("Failed to locate %s" % RESOLV_CONF)
 445             return None
 446
 447         handle = None
 448         try:
 449             handle = open(RESOLV_CONF, 'r')
 450             for line in handle:
 451                 if not line.startswith('nameserver'):
 452                     continue
 453                 # we want the last non-space continuous string of the line
 454                 return line.strip().split()[-1]
 455         finally:
 456             if handle is not None:
 457                 handle.close()
 458
 459         self.logger.warning("No nameserver found in %s" % RESOLV_CONF)
 460
 461
 462 class cmd_domain_dcpromo(Command):
 463     """Promote an existing domain member or NT4 PDC to an AD DC."""
 464
 465     synopsis = "%prog <dnsdomain> [DC|RODC] [options]"
 466
 467     takes_optiongroups = {
 468         "sambaopts": options.SambaOptions,
 469         "versionopts": options.VersionOptions,
 470         "credopts": options.CredentialsOptions,
 471     }
 472
 473     takes_options = [
 474         Option("--server", help="DC to join", type=str),
 475         Option("--site", help="site to join", type=str),
 476         Option("--targetdir", help="where to store provision", type=str),
 477         Option("--domain-critical-only",
 478                help="only replicate critical domain objects",
 479                action="store_true"),
 480         Option("--machinepass", type=str, metavar="PASSWORD",
 481                help="choose machine password (otherwise random)"),
 482         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
 483                action="store_true"),
 484         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
 485                choices=["SAMBA_INTERNAL", "BIND9_DLZ", "NONE"],
 486                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
 487                    "BIND9_DLZ uses samba4 AD to store zone information, "
 488                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
 489                default="SAMBA_INTERNAL"),
 490         Option("--quiet", help="Be quiet", action="store_true"),
 491         Option("--verbose", help="Be verbose", action="store_true")
 492         ]
 493
 494     takes_args = ["domain", "role?"]
 495
 496     def run(self, domain, role=None, sambaopts=None, credopts=None,
 497             versionopts=None, server=None, site=None, targetdir=None,
 498             domain_critical_only=False, parent_domain=None, machinepass=None,
 499             use_ntvfs=False, dns_backend=None,
 500             quiet=False, verbose=False):
 501         lp = sambaopts.get_loadparm()
 502         creds = credopts.get_credentials(lp)
 503         net = Net(creds, lp, server=credopts.ipaddress)
 504
 505         if site is None:
 506             site = "Default-First-Site-Name"
 507
 508         logger = self.get_logger()
 509         if verbose:
 510             logger.setLevel(logging.DEBUG)
 511         elif quiet:
 512             logger.setLevel(logging.WARNING)
 513         else:
 514             logger.setLevel(logging.INFO)
 515
 516         netbios_name = lp.get("netbios name")
 517
 518         if not role is None:
 519             role = role.upper()
 520
 521         if role == "DC":
 522             join_DC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 523                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 524                     domain_critical_only=domain_critical_only,
 525                     machinepass=machinepass, use_ntvfs=use_ntvfs,
 526                     dns_backend=dns_backend,
 527                     promote_existing=True)
 528         elif role == "RODC":
 529             join_RODC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 530                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 531                       domain_critical_only=domain_critical_only,
 532                       machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend,
 533                       promote_existing=True)
 534         else:
 535             raise CommandError("Invalid role '%s' (possible values: DC, RODC)" % role)
 536
 537
 538 class cmd_domain_join(Command):
 539     """Join domain as either member or backup domain controller."""
 540
 541     synopsis = "%prog <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
 542
 543     takes_optiongroups = {
 544         "sambaopts": options.SambaOptions,
 545         "versionopts": options.VersionOptions,
 546         "credopts": options.CredentialsOptions,
 547     }
 548
 549     takes_options = [
 550         Option("--server", help="DC to join", type=str),
 551         Option("--site", help="site to join", type=str),
 552         Option("--targetdir", help="where to store provision", type=str),
 553         Option("--parent-domain", help="parent domain to create subdomain under", type=str),
 554         Option("--domain-critical-only",
 555                help="only replicate critical domain objects",
 556                action="store_true"),
 557         Option("--machinepass", type=str, metavar="PASSWORD",
 558                help="choose machine password (otherwise random)"),
 559         Option("--adminpass", type="string", metavar="PASSWORD",
 560                help="choose adminstrator password when joining as a subdomain (otherwise random)"),
 561         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
 562                action="store_true"),
 563         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
 564                choices=["SAMBA_INTERNAL", "BIND9_DLZ", "NONE"],
 565                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
 566                    "BIND9_DLZ uses samba4 AD to store zone information, "
 567                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
 568                default="SAMBA_INTERNAL"),
 569         Option("--quiet", help="Be quiet", action="store_true"),
 570         Option("--verbose", help="Be verbose", action="store_true")
 571        ]
 572
 573     takes_args = ["domain", "role?"]
 574
 575     def run(self, domain, role=None, sambaopts=None, credopts=None,
 576             versionopts=None, server=None, site=None, targetdir=None,
 577             domain_critical_only=False, parent_domain=None, machinepass=None,
 578             use_ntvfs=False, dns_backend=None, adminpass=None,
 579             quiet=False, verbose=False):
 580         lp = sambaopts.get_loadparm()
 581         creds = credopts.get_credentials(lp)
 582         net = Net(creds, lp, server=credopts.ipaddress)
 583
 584         if site is None:
 585             site = "Default-First-Site-Name"
 586
 587         logger = self.get_logger()
 588         if verbose:
 589             logger.setLevel(logging.DEBUG)
 590         elif quiet:
 591             logger.setLevel(logging.WARNING)
 592         else:
 593             logger.setLevel(logging.INFO)
 594
 595         netbios_name = lp.get("netbios name")
 596
 597         if not role is None:
 598             role = role.upper()
 599
 600         if role is None or role == "MEMBER":
 601             (join_password, sid, domain_name) = net.join_member(
 602                 domain, netbios_name, LIBNET_JOIN_AUTOMATIC,
 603                 machinepass=machinepass)
 604
 605             self.errf.write("Joined domain %s (%s)\n" % (domain_name, sid))
 606         elif role == "DC":
 607             join_DC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 608                     site=site, netbios_name=netbios_name, targetdir=targetdir,
 609                     domain_critical_only=domain_critical_only,
 610                     machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
 611         elif role == "RODC":
 612             join_RODC(logger=logger, server=server, creds=creds, lp=lp, domain=domain,
 613                       site=site, netbios_name=netbios_name, targetdir=targetdir,
 614                       domain_critical_only=domain_critical_only,
 615                       machinepass=machinepass, use_ntvfs=use_ntvfs,
 616                       dns_backend=dns_backend)
 617         elif role == "SUBDOMAIN":
 618             if not adminpass:
 619                 logger.info("Administrator password will be set randomly!")
 620
 621             netbios_domain = lp.get("workgroup")
 622             if parent_domain is None:
 623                 parent_domain = ".".join(domain.split(".")[1:])
 624             join_subdomain(logger=logger, server=server, creds=creds, lp=lp, dnsdomain=domain,
 625                            parent_domain=parent_domain, site=site,
 626                            netbios_name=netbios_name, netbios_domain=netbios_domain,
 627                            targetdir=targetdir, machinepass=machinepass,
 628                            use_ntvfs=use_ntvfs, dns_backend=dns_backend,
 629                            adminpass=adminpass)
 630         else:
 631             raise CommandError("Invalid role '%s' (possible values: MEMBER, DC, RODC, SUBDOMAIN)" % role)
 632
 633
 634 class cmd_domain_demote(Command):
 635     """Demote ourselves from the role of Domain Controller."""
 636
 637     synopsis = "%prog [options]"
 638
 639     takes_options = [
 640         Option("--server", help="DC to force replication before demote", type=str),
 641         Option("--targetdir", help="where provision is stored", type=str),
 642         ]
 643
 644     takes_optiongroups = {
 645         "sambaopts": options.SambaOptions,
 646         "credopts": options.CredentialsOptions,
 647         "versionopts": options.VersionOptions,
 648         }
 649
 650     def run(self, sambaopts=None, credopts=None,
 651             versionopts=None, server=None, targetdir=None):
 652         lp = sambaopts.get_loadparm()
 653         creds = credopts.get_credentials(lp)
 654         net = Net(creds, lp, server=credopts.ipaddress)
 655
 656         netbios_name = lp.get("netbios name")
 657         samdb = SamDB(session_info=system_session(), credentials=creds, lp=lp)
 658         if not server:
 659             res = samdb.search(expression='(&(objectClass=computer)(serverReferenceBL=*))', attrs=["dnsHostName", "name"])
 660             if (len(res) == 0):
 661                 raise CommandError("Unable to search for servers")
 662
 663             if (len(res) == 1):
 664                 raise CommandError("You are the latest server in the domain")
 665
 666             server = None
 667             for e in res:
 668                 if str(e["name"]).lower() != netbios_name.lower():
 669                     server = e["dnsHostName"]
 670                     break
 671
 672         ntds_guid = samdb.get_ntds_GUID()
 673         msg = samdb.search(base=str(samdb.get_config_basedn()),
 674             scope=ldb.SCOPE_SUBTREE, expression="(objectGUID=%s)" % ntds_guid,
 675             attrs=['options'])
 676         if len(msg) == 0 or "options" not in msg[0]:
 677             raise CommandError("Failed to find options on %s" % ntds_guid)
 678
 679         ntds_dn = msg[0].dn
 680         dsa_options = int(str(msg[0]['options']))
 681
 682         res = samdb.search(expression="(fSMORoleOwner=%s)" % str(ntds_dn),
 683                             controls=["search_options:1:2"])
 684
 685         if len(res) != 0:
 686             raise CommandError("Current DC is still the owner of %d role(s), use the role command to transfer roles to another DC" % len(res))
 687
 688         self.errf.write("Using %s as partner server for the demotion\n" %
 689                         server)
 690         (drsuapiBind, drsuapi_handle, supportedExtensions) = drsuapi_connect(server, lp, creds)
 691
 692         self.errf.write("Desactivating inbound replication\n")
 693
 694         nmsg = ldb.Message()
 695         nmsg.dn = msg[0].dn
 696
 697         dsa_options |= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 698         nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 699         samdb.modify(nmsg)
 700
 701         if not (dsa_options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) and not samdb.am_rodc():
 702
 703             self.errf.write("Asking partner server %s to synchronize from us\n"
 704                             % server)
 705             for part in (samdb.get_schema_basedn(),
 706                             samdb.get_config_basedn(),
 707                             samdb.get_root_basedn()):
 708                 try:
 709                     sendDsReplicaSync(drsuapiBind, drsuapi_handle, ntds_guid, str(part), drsuapi.DRSUAPI_DRS_WRIT_REP)
 710                 except drsException, e:
 711                     self.errf.write(
 712                         "Error while demoting, "
 713                         "re-enabling inbound replication\n")
 714                     dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 715                     nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 716                     samdb.modify(nmsg)
 717                     raise CommandError("Error while sending a DsReplicaSync for partion %s" % str(part), e)
 718         try:
 719             remote_samdb = SamDB(url="ldap://%s" % server,
 720                                 session_info=system_session(),
 721                                 credentials=creds, lp=lp)
 722
 723             self.errf.write("Changing userControl and container\n")
 724             res = remote_samdb.search(base=str(remote_samdb.get_root_basedn()),
 725                                 expression="(&(objectClass=user)(sAMAccountName=%s$))" %
 726                                             netbios_name.upper(),
 727                                 attrs=["userAccountControl"])
 728             dc_dn = res[0].dn
 729             uac = int(str(res[0]["userAccountControl"]))
 730
 731         except Exception, e:
 732             self.errf.write(
 733                 "Error while demoting, re-enabling inbound replication\n")
 734             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 735             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 736             samdb.modify(nmsg)
 737             raise CommandError("Error while changing account control", e)
 738
 739         if (len(res) != 1):
 740             self.errf.write(
 741                 "Error while demoting, re-enabling inbound replication")
 742             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 743             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 744             samdb.modify(nmsg)
 745             raise CommandError("Unable to find object with samaccountName = %s$"
 746                                " in the remote dc" % netbios_name.upper())
 747
 748         olduac = uac
 749
 750         uac ^= (UF_SERVER_TRUST_ACCOUNT|UF_TRUSTED_FOR_DELEGATION)
 751         uac |= UF_WORKSTATION_TRUST_ACCOUNT
 752
 753         msg = ldb.Message()
 754         msg.dn = dc_dn
 755
 756         msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 757                                                         ldb.FLAG_MOD_REPLACE,
 758                                                         "userAccountControl")
 759         try:
 760             remote_samdb.modify(msg)
 761         except Exception, e:
 762             self.errf.write(
 763                 "Error while demoting, re-enabling inbound replication")
 764             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 765             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 766             samdb.modify(nmsg)
 767
 768             raise CommandError("Error while changing account control", e)
 769
 770         parent = msg.dn.parent()
 771         rdn = str(res[0].dn)
 772         rdn = string.replace(rdn, ",%s" % str(parent), "")
 773         # Let's move to the Computer container
 774         i = 0
 775         newrdn = rdn
 776
 777         computer_dn = ldb.Dn(remote_samdb, "CN=Computers,%s" % str(remote_samdb.get_root_basedn()))
 778         res = remote_samdb.search(base=computer_dn, expression=rdn, scope=ldb.SCOPE_ONELEVEL)
 779
 780         if (len(res) != 0):
 781             res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 782                                         scope=ldb.SCOPE_ONELEVEL)
 783             while(len(res) != 0 and i < 100):
 784                 i = i + 1
 785                 res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
 786                                             scope=ldb.SCOPE_ONELEVEL)
 787
 788             if i == 100:
 789                 self.errf.write(
 790                     "Error while demoting, re-enabling inbound replication\n")
 791                 dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 792                 nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 793                 samdb.modify(nmsg)
 794
 795                 msg = ldb.Message()
 796                 msg.dn = dc_dn
 797
 798                 msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 799                                                         ldb.FLAG_MOD_REPLACE,
 800                                                         "userAccountControl")
 801
 802                 remote_samdb.modify(msg)
 803
 804                 raise CommandError("Unable to find a slot for renaming %s,"
 805                                     " all names from %s-1 to %s-%d seemed used" %
 806                                     (str(dc_dn), rdn, rdn, i - 9))
 807
 808             newrdn = "%s-%d" % (rdn, i)
 809
 810         try:
 811             newdn = ldb.Dn(remote_samdb, "%s,%s" % (newrdn, str(computer_dn)))
 812             remote_samdb.rename(dc_dn, newdn)
 813         except Exception, e:
 814             self.errf.write(
 815                 "Error while demoting, re-enabling inbound replication\n")
 816             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 817             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 818             samdb.modify(nmsg)
 819
 820             msg = ldb.Message()
 821             msg.dn = dc_dn
 822
 823             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 824                                                     ldb.FLAG_MOD_REPLACE,
 825                                                     "userAccountControl")
 826
 827             remote_samdb.modify(msg)
 828             raise CommandError("Error while renaming %s to %s" % (str(dc_dn), str(newdn)), e)
 829
 830
 831         server_dsa_dn = samdb.get_serverName()
 832         domain = remote_samdb.get_root_basedn()
 833
 834         try:
 835             sendRemoveDsServer(drsuapiBind, drsuapi_handle, server_dsa_dn, domain)
 836         except drsException, e:
 837             self.errf.write(
 838                 "Error while demoting, re-enabling inbound replication\n")
 839             dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
 840             nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
 841             samdb.modify(nmsg)
 842
 843             msg = ldb.Message()
 844             msg.dn = newdn
 845
 846             msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
 847                                                     ldb.FLAG_MOD_REPLACE,
 848                                                     "userAccountControl")
 849             print str(dc_dn)
 850             remote_samdb.modify(msg)
 851             remote_samdb.rename(newdn, dc_dn)
 852             raise CommandError("Error while sending a removeDsServer", e)
 853
 854         for s in ("CN=Enterprise,CN=Microsoft System Volumes,CN=System,CN=Configuration",
 855                   "CN=%s,CN=Microsoft System Volumes,CN=System,CN=Configuration" % lp.get("realm"),
 856                   "CN=Domain System Volumes (SYSVOL share),CN=File Replication Service,CN=System"):
 857             try:
 858                 remote_samdb.delete(ldb.Dn(remote_samdb,
 859                                     "%s,%s,%s" % (str(rdn), s, str(remote_samdb.get_root_basedn()))))
 860             except ldb.LdbError, l:
 861                 pass
 862
 863         for s in ("CN=Enterprise,CN=NTFRS Subscriptions",
 864                   "CN=%s, CN=NTFRS Subscriptions" % lp.get("realm"),
 865                   "CN=Domain system Volumes (SYSVOL Share), CN=NTFRS Subscriptions",
 866                   "CN=NTFRS Subscriptions"):
 867             try:
 868                 remote_samdb.delete(ldb.Dn(remote_samdb,
 869                                     "%s,%s" % (s, str(newdn))))
 870             except ldb.LdbError, l:
 871                 pass
 872
 873         self.errf.write("Demote successfull\n")
 874
 875
 876 class cmd_domain_level(Command):
 877     """Raise domain and forest function levels."""
 878
 879     synopsis = "%prog (show|raise <options>) [options]"
 880
 881     takes_optiongroups = {
 882         "sambaopts": options.SambaOptions,
 883         "credopts": options.CredentialsOptions,
 884         "versionopts": options.VersionOptions,
 885         }
 886
 887     takes_options = [
 888         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
 889                metavar="URL", dest="H"),
 890         Option("--quiet", help="Be quiet", action="store_true"),
 891         Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
 892             help="The forest function level (2003 | 2008 | 2008_R2)"),
 893         Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
 894             help="The domain function level (2003 | 2008 | 2008_R2)")
 895             ]
 896
 897     takes_args = ["subcommand"]
 898
 899     def run(self, subcommand, H=None, forest_level=None, domain_level=None,
 900             quiet=False, credopts=None, sambaopts=None, versionopts=None):
 901         lp = sambaopts.get_loadparm()
 902         creds = credopts.get_credentials(lp, fallback_machine=True)
 903
 904         samdb = SamDB(url=H, session_info=system_session(),
 905             credentials=creds, lp=lp)
 906
 907         domain_dn = samdb.domain_dn()
 908
 909         res_forest = samdb.search("CN=Partitions,%s" % samdb.get_config_basedn(),
 910           scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
 911         assert len(res_forest) == 1
 912
 913         res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
 914           attrs=["msDS-Behavior-Version", "nTMixedDomain"])
 915         assert len(res_domain) == 1
 916
 917         res_dc_s = samdb.search("CN=Sites,%s" % samdb.get_config_basedn(),
 918           scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
 919           attrs=["msDS-Behavior-Version"])
 920         assert len(res_dc_s) >= 1
 921
 922         try:
 923             level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
 924             level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
 925             level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
 926
 927             min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
 928             for msg in res_dc_s:
 929                 if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
 930                     min_level_dc = int(msg["msDS-Behavior-Version"][0])
 931
 932             if level_forest < 0 or level_domain < 0:
 933                 raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
 934             if min_level_dc < 0:
 935                 raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
 936             if level_forest > level_domain:
 937                 raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
 938             if level_domain > min_level_dc:
 939                 raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
 940
 941         except KeyError:
 942             raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
 943
 944         if subcommand == "show":
 945             self.message("Domain and forest function level for domain '%s'" % domain_dn)
 946             if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 947                 self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 948             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 949                 self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
 950             if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 951                 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)!")
 952
 953             self.message("")
 954
 955             if level_forest == DS_DOMAIN_FUNCTION_2000:
 956                 outstr = "2000"
 957             elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
 958                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 959             elif level_forest == DS_DOMAIN_FUNCTION_2003:
 960                 outstr = "2003"
 961             elif level_forest == DS_DOMAIN_FUNCTION_2008:
 962                 outstr = "2008"
 963             elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
 964                 outstr = "2008 R2"
 965             else:
 966                 outstr = "higher than 2008 R2"
 967             self.message("Forest function level: (Windows) " + outstr)
 968
 969             if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
 970                 outstr = "2000 mixed (NT4 DC support)"
 971             elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
 972                 outstr = "2000"
 973             elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
 974                 outstr = "2003 with mixed domains/interim (NT4 DC support)"
 975             elif level_domain == DS_DOMAIN_FUNCTION_2003:
 976                 outstr = "2003"
 977             elif level_domain == DS_DOMAIN_FUNCTION_2008:
 978                 outstr = "2008"
 979             elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
 980                 outstr = "2008 R2"
 981             else:
 982                 outstr = "higher than 2008 R2"
 983             self.message("Domain function level: (Windows) " + outstr)
 984
 985             if min_level_dc == DS_DOMAIN_FUNCTION_2000:
 986                 outstr = "2000"
 987             elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
 988                 outstr = "2003"
 989             elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
 990                 outstr = "2008"
 991             elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
 992                 outstr = "2008 R2"
 993             else:
 994                 outstr = "higher than 2008 R2"
 995             self.message("Lowest function level of a DC: (Windows) " + outstr)
 996
 997         elif subcommand == "raise":
 998             msgs = []
 999
1000             if domain_level is not None:
1001                 if domain_level == "2003":
1002                     new_level_domain = DS_DOMAIN_FUNCTION_2003
1003                 elif domain_level == "2008":
1004                     new_level_domain = DS_DOMAIN_FUNCTION_2008
1005                 elif domain_level == "2008_R2":
1006                     new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
1007
1008                 if new_level_domain <= level_domain and level_domain_mixed == 0:
1009                     raise CommandError("Domain function level can't be smaller than or equal to the actual one!")
1010
1011                 if new_level_domain > min_level_dc:
1012                     raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
1013
1014                 # Deactivate mixed/interim domain support
1015                 if level_domain_mixed != 0:
1016                     # Directly on the base DN
1017                     m = ldb.Message()
1018                     m.dn = ldb.Dn(samdb, domain_dn)
1019                     m["nTMixedDomain"] = ldb.MessageElement("0",
1020                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
1021                     samdb.modify(m)
1022                     # Under partitions
1023                     m = ldb.Message()
1024                     m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup") + ",CN=Partitions,%s" % samdb.get_config_basedn())
1025                     m["nTMixedDomain"] = ldb.MessageElement("0",
1026                       ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
1027                     try:
1028                         samdb.modify(m)
1029                     except ldb.LdbError, (enum, emsg):
1030                         if enum != ldb.ERR_UNWILLING_TO_PERFORM:
1031                             raise
1032
1033                 # Directly on the base DN
1034                 m = ldb.Message()
1035                 m.dn = ldb.Dn(samdb, domain_dn)
1036                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1037                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
1038                             "msDS-Behavior-Version")
1039                 samdb.modify(m)
1040                 # Under partitions
1041                 m = ldb.Message()
1042                 m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
1043                   + ",CN=Partitions,%s" % samdb.get_config_basedn())
1044                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1045                   str(new_level_domain), ldb.FLAG_MOD_REPLACE,
1046                           "msDS-Behavior-Version")
1047                 try:
1048                     samdb.modify(m)
1049                 except ldb.LdbError, (enum, emsg):
1050                     if enum != ldb.ERR_UNWILLING_TO_PERFORM:
1051                         raise
1052
1053                 level_domain = new_level_domain
1054                 msgs.append("Domain function level changed!")
1055
1056             if forest_level is not None:
1057                 if forest_level == "2003":
1058                     new_level_forest = DS_DOMAIN_FUNCTION_2003
1059                 elif forest_level == "2008":
1060                     new_level_forest = DS_DOMAIN_FUNCTION_2008
1061                 elif forest_level == "2008_R2":
1062                     new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
1063                 if new_level_forest <= level_forest:
1064                     raise CommandError("Forest function level can't be smaller than or equal to the actual one!")
1065                 if new_level_forest > level_domain:
1066                     raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
1067                 m = ldb.Message()
1068                 m.dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
1069                 m["msDS-Behavior-Version"]= ldb.MessageElement(
1070                   str(new_level_forest), ldb.FLAG_MOD_REPLACE,
1071                           "msDS-Behavior-Version")
1072                 samdb.modify(m)
1073                 msgs.append("Forest function level changed!")
1074             msgs.append("All changes applied successfully!")
1075             self.message("\n".join(msgs))
1076         else:
1077             raise CommandError("invalid argument: '%s' (choose from 'show', 'raise')" % subcommand)
1078
1079
1080 class cmd_domain_passwordsettings(Command):
1081     """Set password settings.
1082
1083     Password complexity, password lockout policy, history length,
1084     minimum password length, the minimum and maximum password age) on
1085     a Samba AD DC server.
1086
1087     Use against a Windows DC is possible, but group policy will override it.
1088     """
1089
1090     synopsis = "%prog (show|set <options>) [options]"
1091
1092     takes_optiongroups = {
1093         "sambaopts": options.SambaOptions,
1094         "versionopts": options.VersionOptions,
1095         "credopts": options.CredentialsOptions,
1096         }
1097
1098     takes_options = [
1099         Option("-H", "--URL", help="LDB URL for database or target server", type=str,
1100                metavar="URL", dest="H"),
1101         Option("--quiet", help="Be quiet", action="store_true"),
1102         Option("--complexity", type="choice", choices=["on","off","default"],
1103           help="The password complexity (on | off | default). Default is 'on'"),
1104         Option("--store-plaintext", type="choice", choices=["on","off","default"],
1105           help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
1106         Option("--history-length",
1107           help="The password history length (<integer> | default).  Default is 24.", type=str),
1108         Option("--min-pwd-length",
1109           help="The minimum password length (<integer> | default).  Default is 7.", type=str),
1110         Option("--min-pwd-age",
1111           help="The minimum password age (<integer in days> | default).  Default is 1.", type=str),
1112         Option("--max-pwd-age",
1113           help="The maximum password age (<integer in days> | default).  Default is 43.", type=str),
1114         Option("--account-lockout-duration",
1115           help="The the length of time an account is locked out after exeeding the limit on bad password attempts (<integer in mins> | default).  Default is 30 mins.", type=str),
1116         Option("--account-lockout-threshold",
1117           help="The number of bad password attempts allowed before locking out the account (<integer> | default).  Default is 0 (never lock out).", type=str),
1118         Option("--reset-account-lockout-after",
1119           help="After this time is elapsed, the recorded number of attempts restarts from zero (<integer> | default).  Default is 30.", type=str),
1120           ]
1121
1122     takes_args = ["subcommand"]
1123
1124     def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
1125             quiet=False, complexity=None, store_plaintext=None, history_length=None,
1126             min_pwd_length=None, account_lockout_duration=None, account_lockout_threshold=None,
1127             reset_account_lockout_after=None, credopts=None, sambaopts=None,
1128             versionopts=None):
1129         lp = sambaopts.get_loadparm()
1130         creds = credopts.get_credentials(lp)
1131
1132         samdb = SamDB(url=H, session_info=system_session(),
1133             credentials=creds, lp=lp)
1134
1135         domain_dn = samdb.domain_dn()
1136         res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
1137           attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
1138                  "minPwdAge", "maxPwdAge", "lockoutDuration", "lockoutThreshold",
1139                  "lockOutObservationWindow"])
1140         assert(len(res) == 1)
1141         try:
1142             pwd_props = int(res[0]["pwdProperties"][0])
1143             pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
1144             cur_min_pwd_len = int(res[0]["minPwdLength"][0])
1145             # ticks -> days
1146             cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
1147             if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
1148                 cur_max_pwd_age = 0
1149             else:
1150                 cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
1151             cur_account_lockout_threshold = int(res[0]["lockoutThreshold"][0])
1152             # ticks -> mins
1153             if int(res[0]["lockoutDuration"][0]) == -0x8000000000000000:
1154                 cur_account_lockout_duration = 0
1155             else:
1156                 cur_account_lockout_duration = abs(int(res[0]["lockoutDuration"][0])) / (1e7 * 60)
1157             cur_reset_account_lockout_after = abs(int(res[0]["lockOutObservationWindow"][0])) / (1e7 * 60)
1158         except Exception, e:
1159             raise CommandError("Could not retrieve password properties!", e)
1160
1161         if subcommand == "show":
1162             self.message("Password informations for domain '%s'" % domain_dn)
1163             self.message("")
1164             if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
1165                 self.message("Password complexity: on")
1166             else:
1167                 self.message("Password complexity: off")
1168             if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
1169                 self.message("Store plaintext passwords: on")
1170             else:
1171                 self.message("Store plaintext passwords: off")
1172             self.message("Password history length: %d" % pwd_hist_len)
1173             self.message("Minimum password length: %d" % cur_min_pwd_len)
1174             self.message("Minimum password age (days): %d" % cur_min_pwd_age)
1175             self.message("Maximum password age (days): %d" % cur_max_pwd_age)
1176             self.message("Account lockout duration (mins): %d" % cur_account_lockout_duration)
1177             self.message("Account lockout threshold (attempts): %d" % cur_account_lockout_threshold)
1178             self.message("Reset account lockout after (mins): %d" % cur_reset_account_lockout_after)
1179         elif subcommand == "set":
1180             msgs = []
1181             m = ldb.Message()
1182             m.dn = ldb.Dn(samdb, domain_dn)
1183
1184             if complexity is not None:
1185                 if complexity == "on" or complexity == "default":
1186                     pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
1187                     msgs.append("Password complexity activated!")
1188                 elif complexity == "off":
1189                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
1190                     msgs.append("Password complexity deactivated!")
1191
1192             if store_plaintext is not None:
1193                 if store_plaintext == "on" or store_plaintext == "default":
1194                     pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
1195                     msgs.append("Plaintext password storage for changed passwords activated!")
1196                 elif store_plaintext == "off":
1197                     pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
1198                     msgs.append("Plaintext password storage for changed passwords deactivated!")
1199
1200             if complexity is not None or store_plaintext is not None:
1201                 m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
1202                   ldb.FLAG_MOD_REPLACE, "pwdProperties")
1203
1204             if history_length is not None:
1205                 if history_length == "default":
1206                     pwd_hist_len = 24
1207                 else:
1208                     pwd_hist_len = int(history_length)
1209
1210                 if pwd_hist_len < 0 or pwd_hist_len > 24:
1211                     raise CommandError("Password history length must be in the range of 0 to 24!")
1212
1213                 m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
1214                   ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
1215                 msgs.append("Password history length changed!")
1216
1217             if min_pwd_length is not None:
1218                 if min_pwd_length == "default":
1219                     min_pwd_len = 7
1220                 else:
1221                     min_pwd_len = int(min_pwd_length)
1222
1223                 if min_pwd_len < 0 or min_pwd_len > 14:
1224                     raise CommandError("Minimum password length must be in the range of 0 to 14!")
1225
1226                 m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
1227                   ldb.FLAG_MOD_REPLACE, "minPwdLength")
1228                 msgs.append("Minimum password length changed!")
1229
1230             if min_pwd_age is not None:
1231                 if min_pwd_age == "default":
1232                     min_pwd_age = 1
1233                 else:
1234                     min_pwd_age = int(min_pwd_age)
1235
1236                 if min_pwd_age < 0 or min_pwd_age > 998:
1237                     raise CommandError("Minimum password age must be in the range of 0 to 998!")
1238
1239                 # days -> ticks
1240                 min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
1241
1242                 m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
1243                   ldb.FLAG_MOD_REPLACE, "minPwdAge")
1244                 msgs.append("Minimum password age changed!")
1245
1246             if max_pwd_age is not None:
1247                 if max_pwd_age == "default":
1248                     max_pwd_age = 43
1249                 else:
1250                     max_pwd_age = int(max_pwd_age)
1251
1252                 if max_pwd_age < 0 or max_pwd_age > 999:
1253                     raise CommandError("Maximum password age must be in the range of 0 to 999!")
1254
1255                 # days -> ticks
1256                 if max_pwd_age == 0:
1257                     max_pwd_age_ticks = -0x8000000000000000
1258                 else:
1259                     max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
1260
1261                 m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
1262                   ldb.FLAG_MOD_REPLACE, "maxPwdAge")
1263                 msgs.append("Maximum password age changed!")
1264
1265             if account_lockout_duration is not None:
1266                 if account_lockout_duration == "default":
1267                     account_lockout_duration = 30
1268                 else:
1269                     account_lockout_duration = int(account_lockout_duration)
1270
1271                 if account_lockout_duration < 0 or account_lockout_duration > 99999:
1272                     raise CommandError("Maximum password age must be in the range of 0 to 99999!")
1273
1274                 # days -> ticks
1275                 if account_lockout_duration == 0:
1276                     account_lockout_duration_ticks = -0x8000000000000000
1277                 else:
1278                     account_lockout_duration_ticks = -int(account_lockout_duration * (60 * 1e7))
1279
1280                 m["lockoutDuration"] = ldb.MessageElement(str(account_lockout_duration_ticks),
1281                   ldb.FLAG_MOD_REPLACE, "lockoutDuration")
1282                 msgs.append("Account lockout duration changed!")
1283
1284             if account_lockout_threshold is not None:
1285                 if account_lockout_threshold == "default":
1286                     account_lockout_threshold = 0
1287                 else:
1288                     account_lockout_threshold = int(account_lockout_threshold)
1289
1290                 m["lockoutThreshold"] = ldb.MessageElement(str(account_lockout_threshold),
1291                   ldb.FLAG_MOD_REPLACE, "lockoutThreshold")
1292                 msgs.append("Account lockout threshold changed!")
1293
1294             if reset_account_lockout_after is not None:
1295                 if reset_account_lockout_after == "default":
1296                     reset_account_lockout_after = 30
1297                 else:
1298                     reset_account_lockout_after = int(reset_account_lockout_after)
1299
1300                 if reset_account_lockout_after < 0 or reset_account_lockout_after > 99999:
1301                     raise CommandError("Maximum password age must be in the range of 0 to 99999!")
1302
1303                 # days -> ticks
1304                 if reset_account_lockout_after == 0:
1305                     reset_account_lockout_after_ticks = -0x8000000000000000
1306                 else:
1307                     reset_account_lockout_after_ticks = -int(reset_account_lockout_after * (60 * 1e7))
1308
1309                 m["lockOutObservationWindow"] = ldb.MessageElement(str(reset_account_lockout_after_ticks),
1310                   ldb.FLAG_MOD_REPLACE, "lockOutObservationWindow")
1311                 msgs.append("Duration to reset account lockout after changed!")
1312
1313             if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
1314                 raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
1315
1316             if len(m) == 0:
1317                 raise CommandError("You must specify at least one option to set. Try --help")
1318             samdb.modify(m)
1319             msgs.append("All changes applied successfully!")
1320             self.message("\n".join(msgs))
1321         else:
1322             raise CommandError("Wrong argument '%s'!" % subcommand)
1323
1324
1325 class cmd_domain_classicupgrade(Command):
1326     """Upgrade from Samba classic (NT4-like) database to Samba AD DC database.
1327
1328     Specify either a directory with all Samba classic DC databases and state files (with --dbdir) or
1329     the testparm utility from your classic installation (with --testparm).
1330     """
1331
1332     synopsis = "%prog [options] <classic_smb_conf>"
1333
1334     takes_optiongroups = {
1335         "sambaopts": options.SambaOptions,
1336         "versionopts": options.VersionOptions
1337     }
1338
1339     takes_options = [
1340         Option("--dbdir", type="string", metavar="DIR",
1341                   help="Path to samba classic DC database directory"),
1342         Option("--testparm", type="string", metavar="PATH",
1343                   help="Path to samba classic DC testparm utility from the previous installation.  This allows the default paths of the previous installation to be followed"),
1344         Option("--targetdir", type="string", metavar="DIR",
1345                   help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
1346         Option("--quiet", help="Be quiet", action="store_true"),
1347         Option("--verbose", help="Be verbose", action="store_true"),
1348         Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
1349                    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"),
1350         Option("--use-ntvfs", help="Use NTVFS for the fileserver (default = no)",
1351                action="store_true"),
1352         Option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
1353                choices=["SAMBA_INTERNAL", "BIND9_FLATFILE", "BIND9_DLZ", "NONE"],
1354                help="The DNS server backend. SAMBA_INTERNAL is the builtin name server (default), "
1355                    "BIND9_FLATFILE uses bind9 text database to store zone information, "
1356                    "BIND9_DLZ uses samba4 AD to store zone information, "
1357                    "NONE skips the DNS setup entirely (this DC will not be a DNS server)",
1358                default="SAMBA_INTERNAL")
1359     ]
1360
1361     takes_args = ["smbconf"]
1362
1363     def run(self, smbconf=None, targetdir=None, dbdir=None, testparm=None,
1364             quiet=False, verbose=False, use_xattrs=None, sambaopts=None, versionopts=None,
1365             dns_backend=None, use_ntvfs=False):
1366
1367         if not os.path.exists(smbconf):
1368             raise CommandError("File %s does not exist" % smbconf)
1369
1370         if testparm and not os.path.exists(testparm):
1371             raise CommandError("Testparm utility %s does not exist" % testparm)
1372
1373         if dbdir and not os.path.exists(dbdir):
1374             raise CommandError("Directory %s does not exist" % dbdir)
1375
1376         if not dbdir and not testparm:
1377             raise CommandError("Please specify either dbdir or testparm")
1378
1379         logger = self.get_logger()
1380         if verbose:
1381             logger.setLevel(logging.DEBUG)
1382         elif quiet:
1383             logger.setLevel(logging.WARNING)
1384         else:
1385             logger.setLevel(logging.INFO)
1386
1387         if dbdir and testparm:
1388             logger.warning("both dbdir and testparm specified, ignoring dbdir.")
1389             dbdir = None
1390
1391         lp = sambaopts.get_loadparm()
1392
1393         s3conf = s3param.get_context()
1394
1395         if sambaopts.realm:
1396             s3conf.set("realm", sambaopts.realm)
1397
1398         if targetdir is not None:
1399             if not os.path.isdir(targetdir):
1400                 os.mkdir(targetdir)
1401
1402         eadb = True
1403         if use_xattrs == "yes":
1404             eadb = False
1405         elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
1406             if targetdir:
1407                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(targetdir))
1408             else:
1409                 tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(os.path.dirname(lp.get("private dir"))))
1410             try:
1411                 try:
1412                     samba.ntacls.setntacl(lp, tmpfile.name,
1413                                 "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
1414                     eadb = False
1415                 except Exception:
1416                     # FIXME: Don't catch all exceptions here
1417                     logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
1418                                 "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
1419             finally:
1420                 tmpfile.close()
1421
1422         # Set correct default values from dbdir or testparm
1423         paths = {}
1424         if dbdir:
1425             paths["state directory"] = dbdir
1426             paths["private dir"] = dbdir
1427             paths["lock directory"] = dbdir
1428             paths["smb passwd file"] = dbdir + "/smbpasswd"
1429         else:
1430             paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
1431             paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
1432             paths["smb passwd file"] = get_testparm_var(testparm, smbconf, "smb passwd file")
1433             paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
1434             # "testparm" from Samba 3 < 3.4.x is not aware of the parameter
1435             # "state directory", instead make use of "lock directory"
1436             if len(paths["state directory"]) == 0:
1437                 paths["state directory"] = paths["lock directory"]
1438
1439         for p in paths:
1440             s3conf.set(p, paths[p])
1441
1442         # load smb.conf parameters
1443         logger.info("Reading smb.conf")
1444         s3conf.load(smbconf)
1445         samba3 = Samba3(smbconf, s3conf)
1446
1447         logger.info("Provisioning")
1448         upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
1449                             useeadb=eadb, dns_backend=dns_backend, use_ntvfs=use_ntvfs)
1450
1451
1452 class cmd_domain_samba3upgrade(cmd_domain_classicupgrade):
1453     __doc__ = cmd_domain_classicupgrade.__doc__
1454
1455     # This command is present for backwards compatibility only,
1456     # and should not be shown.
1457
1458     hidden = True
1459
1460
1461 class cmd_domain(SuperCommand):
1462     """Domain management."""
1463
1464     subcommands = {}
1465     subcommands["demote"] = cmd_domain_demote()
1466     if cmd_domain_export_keytab is not None:
1467         subcommands["exportkeytab"] = cmd_domain_export_keytab()
1468     subcommands["info"] = cmd_domain_info()
1469     subcommands["provision"] = cmd_domain_provision()
1470     subcommands["join"] = cmd_domain_join()
1471     subcommands["dcpromo"] = cmd_domain_dcpromo()
1472     subcommands["level"] = cmd_domain_level()
1473     subcommands["passwordsettings"] = cmd_domain_passwordsettings()
1474     subcommands["classicupgrade"] = cmd_domain_classicupgrade()
1475     subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()